drivers/net/wireless/ipw2200.c

   1 /******************************************************************************
   2
   3   Copyright(c) 2003 - 2006 Intel Corporation. All rights reserved.
   4
   5   802.11 status code portion of this file from ethereal-0.10.6:
   6     Copyright 2000, Axis Communications AB
   7     Ethereal - Network traffic analyzer
   8     By Gerald Combs <gerald@ethereal.com>
   9     Copyright 1998 Gerald Combs
  10
  11   This program is free software; you can redistribute it and/or modify it
  12   under the terms of version 2 of the GNU General Public License as
  13   published by the Free Software Foundation.
  14
  15   This program is distributed in the hope that it will be useful, but WITHOUT
  16   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  17   FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  18   more details.
  19
  20   You should have received a copy of the GNU General Public License along with
  21   this program; if not, write to the Free Software Foundation, Inc., 59
  22   Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  23
  24   The full GNU General Public License is included in this distribution in the
  25   file called LICENSE.
  26
  27   Contact Information:
  28   James P. Ketrenos <ipw2100-admin@linux.intel.com>
  29   Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  30
  31 ******************************************************************************/
  32
  33 #include "ipw2200.h"
  34 #include <linux/version.h>
  35
  36
  37 #ifndef KBUILD_EXTMOD
  38 #define VK "k"
  39 #else
  40 #define VK
  41 #endif
  42
  43 #ifdef CONFIG_IPW2200_DEBUG
  44 #define VD "d"
  45 #else
  46 #define VD
  47 #endif
  48
  49 #ifdef CONFIG_IPW2200_MONITOR
  50 #define VM "m"
  51 #else
  52 #define VM
  53 #endif
  54
  55 #ifdef CONFIG_IPW2200_PROMISCUOUS
  56 #define VP "p"
  57 #else
  58 #define VP
  59 #endif
  60
  61 #ifdef CONFIG_IPW2200_RADIOTAP
  62 #define VR "r"
  63 #else
  64 #define VR
  65 #endif
  66
  67 #ifdef CONFIG_IPW2200_QOS
  68 #define VQ "q"
  69 #else
  70 #define VQ
  71 #endif
  72
  73 #define IPW2200_VERSION "1.1.2" VK VD VM VP VR VQ
  74 #define DRV_DESCRIPTION "Intel(R) PRO/Wireless 2200/2915 Network Driver"
  75 #define DRV_COPYRIGHT   "Copyright(c) 2003-2006 Intel Corporation"
  76 #define DRV_VERSION     IPW2200_VERSION
  77
  78 #define ETH_P_80211_STATS (ETH_P_80211_RAW + 1)
  79
  80 MODULE_DESCRIPTION(DRV_DESCRIPTION);
  81 MODULE_VERSION(DRV_VERSION);
  82 MODULE_AUTHOR(DRV_COPYRIGHT);
  83 MODULE_LICENSE("GPL");
  84
  85 static int cmdlog = 0;
  86 #ifdef CONFIG_IPW2200_DEBUG
  87 static int debug = 0;
  88 #endif
  89 static int channel = 0;
  90 static int mode = 0;
  91
  92 static u32 ipw_debug_level;
  93 static int associate = 1;
  94 static int auto_create = 1;
  95 static int led = 0;
  96 static int disable = 0;
  97 static int bt_coexist = 0;
  98 static int hwcrypto = 0;
  99 static int roaming = 1;
 100 static const char ipw_modes[] = {
 101         'a', 'b', 'g', '?'
 102 };
 103 static int antenna = CFG_SYS_ANTENNA_BOTH;
 104
 105 #ifdef CONFIG_IPW2200_PROMISCUOUS
 106 static int rtap_iface = 0;     /* def: 0 -- do not create rtap interface */
 107 #endif
 108
 109
 110 #ifdef CONFIG_IPW2200_QOS
 111 static int qos_enable = 0;
 112 static int qos_burst_enable = 0;
 113 static int qos_no_ack_mask = 0;
 114 static int burst_duration_CCK = 0;
 115 static int burst_duration_OFDM = 0;
 116
 117 static struct ieee80211_qos_parameters def_qos_parameters_OFDM = {
 118         {QOS_TX0_CW_MIN_OFDM, QOS_TX1_CW_MIN_OFDM, QOS_TX2_CW_MIN_OFDM,
 119          QOS_TX3_CW_MIN_OFDM},
 120         {QOS_TX0_CW_MAX_OFDM, QOS_TX1_CW_MAX_OFDM, QOS_TX2_CW_MAX_OFDM,
 121          QOS_TX3_CW_MAX_OFDM},
 122         {QOS_TX0_AIFS, QOS_TX1_AIFS, QOS_TX2_AIFS, QOS_TX3_AIFS},
 123         {QOS_TX0_ACM, QOS_TX1_ACM, QOS_TX2_ACM, QOS_TX3_ACM},
 124         {QOS_TX0_TXOP_LIMIT_OFDM, QOS_TX1_TXOP_LIMIT_OFDM,
 125          QOS_TX2_TXOP_LIMIT_OFDM, QOS_TX3_TXOP_LIMIT_OFDM}
 126 };
 127
 128 static struct ieee80211_qos_parameters def_qos_parameters_CCK = {
 129         {QOS_TX0_CW_MIN_CCK, QOS_TX1_CW_MIN_CCK, QOS_TX2_CW_MIN_CCK,
 130          QOS_TX3_CW_MIN_CCK},
 131         {QOS_TX0_CW_MAX_CCK, QOS_TX1_CW_MAX_CCK, QOS_TX2_CW_MAX_CCK,
 132          QOS_TX3_CW_MAX_CCK},
 133         {QOS_TX0_AIFS, QOS_TX1_AIFS, QOS_TX2_AIFS, QOS_TX3_AIFS},
 134         {QOS_TX0_ACM, QOS_TX1_ACM, QOS_TX2_ACM, QOS_TX3_ACM},
 135         {QOS_TX0_TXOP_LIMIT_CCK, QOS_TX1_TXOP_LIMIT_CCK, QOS_TX2_TXOP_LIMIT_CCK,
 136          QOS_TX3_TXOP_LIMIT_CCK}
 137 };
 138
 139 static struct ieee80211_qos_parameters def_parameters_OFDM = {
 140         {DEF_TX0_CW_MIN_OFDM, DEF_TX1_CW_MIN_OFDM, DEF_TX2_CW_MIN_OFDM,
 141          DEF_TX3_CW_MIN_OFDM},
 142         {DEF_TX0_CW_MAX_OFDM, DEF_TX1_CW_MAX_OFDM, DEF_TX2_CW_MAX_OFDM,
 143          DEF_TX3_CW_MAX_OFDM},
 144         {DEF_TX0_AIFS, DEF_TX1_AIFS, DEF_TX2_AIFS, DEF_TX3_AIFS},
 145         {DEF_TX0_ACM, DEF_TX1_ACM, DEF_TX2_ACM, DEF_TX3_ACM},
 146         {DEF_TX0_TXOP_LIMIT_OFDM, DEF_TX1_TXOP_LIMIT_OFDM,
 147          DEF_TX2_TXOP_LIMIT_OFDM, DEF_TX3_TXOP_LIMIT_OFDM}
 148 };
 149
 150 static struct ieee80211_qos_parameters def_parameters_CCK = {
 151         {DEF_TX0_CW_MIN_CCK, DEF_TX1_CW_MIN_CCK, DEF_TX2_CW_MIN_CCK,
 152          DEF_TX3_CW_MIN_CCK},
 153         {DEF_TX0_CW_MAX_CCK, DEF_TX1_CW_MAX_CCK, DEF_TX2_CW_MAX_CCK,
 154          DEF_TX3_CW_MAX_CCK},
 155         {DEF_TX0_AIFS, DEF_TX1_AIFS, DEF_TX2_AIFS, DEF_TX3_AIFS},
 156         {DEF_TX0_ACM, DEF_TX1_ACM, DEF_TX2_ACM, DEF_TX3_ACM},
 157         {DEF_TX0_TXOP_LIMIT_CCK, DEF_TX1_TXOP_LIMIT_CCK, DEF_TX2_TXOP_LIMIT_CCK,
 158          DEF_TX3_TXOP_LIMIT_CCK}
 159 };
 160
 161 static u8 qos_oui[QOS_OUI_LEN] = { 0x00, 0x50, 0xF2 };
 162
 163 static int from_priority_to_tx_queue[] = {
 164         IPW_TX_QUEUE_1, IPW_TX_QUEUE_2, IPW_TX_QUEUE_2, IPW_TX_QUEUE_1,
 165         IPW_TX_QUEUE_3, IPW_TX_QUEUE_3, IPW_TX_QUEUE_4, IPW_TX_QUEUE_4
 166 };
 167
 168 static u32 ipw_qos_get_burst_duration(struct ipw_priv *priv);
 169
 170 static int ipw_send_qos_params_command(struct ipw_priv *priv, struct ieee80211_qos_parameters
 171                                        *qos_param);
 172 static int ipw_send_qos_info_command(struct ipw_priv *priv, struct ieee80211_qos_information_element
 173                                      *qos_param);
 174 #endif                          /* CONFIG_IPW2200_QOS */
 175
 176 static struct iw_statistics *ipw_get_wireless_stats(struct net_device *dev);
 177 static void ipw_remove_current_network(struct ipw_priv *priv);
 178 static void ipw_rx(struct ipw_priv *priv);
 179 static int ipw_queue_tx_reclaim(struct ipw_priv *priv,
 180                                 struct clx2_tx_queue *txq, int qindex);
 181 static int ipw_queue_reset(struct ipw_priv *priv);
 182
 183 static int ipw_queue_tx_hcmd(struct ipw_priv *priv, int hcmd, void *buf,
 184                              int len, int sync);
 185
 186 static void ipw_tx_queue_free(struct ipw_priv *);
 187
 188 static struct ipw_rx_queue *ipw_rx_queue_alloc(struct ipw_priv *);
 189 static void ipw_rx_queue_free(struct ipw_priv *, struct ipw_rx_queue *);
 190 static void ipw_rx_queue_replenish(void *);
 191 static int ipw_up(struct ipw_priv *);
 192 static void ipw_bg_up(void *);
 193 static void ipw_down(struct ipw_priv *);
 194 static void ipw_bg_down(void *);
 195 static int ipw_config(struct ipw_priv *);
 196 static int init_supported_rates(struct ipw_priv *priv,
 197                                 struct ipw_supported_rates *prates);
 198 static void ipw_set_hwcrypto_keys(struct ipw_priv *);
 199 static void ipw_send_wep_keys(struct ipw_priv *, int);
 200
 201 static int snprint_line(char *buf, size_t count,
 202                         const u8 * data, u32 len, u32 ofs)
 203 {
 204         int out, i, j, l;
 205         char c;
 206
 207         out = snprintf(buf, count, "%08X", ofs);
 208
 209         for (l = 0, i = 0; i < 2; i++) {
 210                 out += snprintf(buf + out, count - out, " ");
 211                 for (j = 0; j < 8 && l < len; j++, l++)
 212                         out += snprintf(buf + out, count - out, "%02X ",
 213                                         data[(i * 8 + j)]);
 214                 for (; j < 8; j++)
 215                         out += snprintf(buf + out, count - out, "   ");
 216         }
 217
 218         out += snprintf(buf + out, count - out, " ");
 219         for (l = 0, i = 0; i < 2; i++) {
 220                 out += snprintf(buf + out, count - out, " ");
 221                 for (j = 0; j < 8 && l < len; j++, l++) {
 222                         c = data[(i * 8 + j)];
 223                         if (!isascii(c) || !isprint(c))
 224                                 c = '.';
 225
 226                         out += snprintf(buf + out, count - out, "%c", c);
 227                 }
 228
 229                 for (; j < 8; j++)
 230                         out += snprintf(buf + out, count - out, " ");
 231         }
 232
 233         return out;
 234 }
 235
 236 static void printk_buf(int level, const u8 * data, u32 len)
 237 {
 238         char line[81];
 239         u32 ofs = 0;
 240         if (!(ipw_debug_level & level))
 241                 return;
 242
 243         while (len) {
 244                 snprint_line(line, sizeof(line), &data[ofs],
 245                              min(len, 16U), ofs);
 246                 printk(KERN_DEBUG "%s\n", line);
 247                 ofs += 16;
 248                 len -= min(len, 16U);
 249         }
 250 }
 251
 252 static int snprintk_buf(u8 * output, size_t size, const u8 * data, size_t len)
 253 {
 254         size_t out = size;
 255         u32 ofs = 0;
 256         int total = 0;
 257
 258         while (size && len) {
 259                 out = snprint_line(output, size, &data[ofs],
 260                                    min_t(size_t, len, 16U), ofs);
 261
 262                 ofs += 16;
 263                 output += out;
 264                 size -= out;
 265                 len -= min_t(size_t, len, 16U);
 266                 total += out;
 267         }
 268         return total;
 269 }
 270
 271 /* alias for 32-bit indirect read (for SRAM/reg above 4K), with debug wrapper */
 272 static u32 _ipw_read_reg32(struct ipw_priv *priv, u32 reg);
 273 #define ipw_read_reg32(a, b) _ipw_read_reg32(a, b)
 274
 275 /* alias for 8-bit indirect read (for SRAM/reg above 4K), with debug wrapper */
 276 static u8 _ipw_read_reg8(struct ipw_priv *ipw, u32 reg);
 277 #define ipw_read_reg8(a, b) _ipw_read_reg8(a, b)
 278
 279 /* 8-bit indirect write (for SRAM/reg above 4K), with debug wrapper */
 280 static void _ipw_write_reg8(struct ipw_priv *priv, u32 reg, u8 value);
 281 static inline void ipw_write_reg8(struct ipw_priv *a, u32 b, u8 c)
 282 {
 283         IPW_DEBUG_IO("%s %d: write_indirect8(0x%08X, 0x%08X)\n", __FILE__,
 284                      __LINE__, (u32) (b), (u32) (c));
 285         _ipw_write_reg8(a, b, c);
 286 }
 287
 288 /* 16-bit indirect write (for SRAM/reg above 4K), with debug wrapper */
 289 static void _ipw_write_reg16(struct ipw_priv *priv, u32 reg, u16 value);
 290 static inline void ipw_write_reg16(struct ipw_priv *a, u32 b, u16 c)
 291 {
 292         IPW_DEBUG_IO("%s %d: write_indirect16(0x%08X, 0x%08X)\n", __FILE__,
 293                      __LINE__, (u32) (b), (u32) (c));
 294         _ipw_write_reg16(a, b, c);
 295 }
 296
 297 /* 32-bit indirect write (for SRAM/reg above 4K), with debug wrapper */
 298 static void _ipw_write_reg32(struct ipw_priv *priv, u32 reg, u32 value);
 299 static inline void ipw_write_reg32(struct ipw_priv *a, u32 b, u32 c)
 300 {
 301         IPW_DEBUG_IO("%s %d: write_indirect32(0x%08X, 0x%08X)\n", __FILE__,
 302                      __LINE__, (u32) (b), (u32) (c));
 303         _ipw_write_reg32(a, b, c);
 304 }
 305
 306 /* 8-bit direct write (low 4K) */
 307 #define _ipw_write8(ipw, ofs, val) writeb((val), (ipw)->hw_base + (ofs))
 308
 309 /* 8-bit direct write (for low 4K of SRAM/regs), with debug wrapper */
 310 #define ipw_write8(ipw, ofs, val) \
 311  IPW_DEBUG_IO("%s %d: write_direct8(0x%08X, 0x%08X)\n", __FILE__, __LINE__, (u32)(ofs), (u32)(val)); \
 312  _ipw_write8(ipw, ofs, val)
 313
 314 /* 16-bit direct write (low 4K) */
 315 #define _ipw_write16(ipw, ofs, val) writew((val), (ipw)->hw_base + (ofs))
 316
 317 /* 16-bit direct write (for low 4K of SRAM/regs), with debug wrapper */
 318 #define ipw_write16(ipw, ofs, val) \
 319  IPW_DEBUG_IO("%s %d: write_direct16(0x%08X, 0x%08X)\n", __FILE__, __LINE__, (u32)(ofs), (u32)(val)); \
 320  _ipw_write16(ipw, ofs, val)
 321
 322 /* 32-bit direct write (low 4K) */
 323 #define _ipw_write32(ipw, ofs, val) writel((val), (ipw)->hw_base + (ofs))
 324
 325 /* 32-bit direct write (for low 4K of SRAM/regs), with debug wrapper */
 326 #define ipw_write32(ipw, ofs, val) \
 327  IPW_DEBUG_IO("%s %d: write_direct32(0x%08X, 0x%08X)\n", __FILE__, __LINE__, (u32)(ofs), (u32)(val)); \
 328  _ipw_write32(ipw, ofs, val)
 329
 330 /* 8-bit direct read (low 4K) */
 331 #define _ipw_read8(ipw, ofs) readb((ipw)->hw_base + (ofs))
 332
 333 /* 8-bit direct read (low 4K), with debug wrapper */
 334 static inline u8 __ipw_read8(char *f, u32 l, struct ipw_priv *ipw, u32 ofs)
 335 {
 336         IPW_DEBUG_IO("%s %d: read_direct8(0x%08X)\n", f, l, (u32) (ofs));
 337         return _ipw_read8(ipw, ofs);
 338 }
 339
 340 /* alias to 8-bit direct read (low 4K of SRAM/regs), with debug wrapper */
 341 #define ipw_read8(ipw, ofs) __ipw_read8(__FILE__, __LINE__, ipw, ofs)
 342
 343 /* 16-bit direct read (low 4K) */
 344 #define _ipw_read16(ipw, ofs) readw((ipw)->hw_base + (ofs))
 345
 346 /* 16-bit direct read (low 4K), with debug wrapper */
 347 static inline u16 __ipw_read16(char *f, u32 l, struct ipw_priv *ipw, u32 ofs)
 348 {
 349         IPW_DEBUG_IO("%s %d: read_direct16(0x%08X)\n", f, l, (u32) (ofs));
 350         return _ipw_read16(ipw, ofs);
 351 }
 352
 353 /* alias to 16-bit direct read (low 4K of SRAM/regs), with debug wrapper */
 354 #define ipw_read16(ipw, ofs) __ipw_read16(__FILE__, __LINE__, ipw, ofs)
 355
 356 /* 32-bit direct read (low 4K) */
 357 #define _ipw_read32(ipw, ofs) readl((ipw)->hw_base + (ofs))
 358
 359 /* 32-bit direct read (low 4K), with debug wrapper */
 360 static inline u32 __ipw_read32(char *f, u32 l, struct ipw_priv *ipw, u32 ofs)
 361 {
 362         IPW_DEBUG_IO("%s %d: read_direct32(0x%08X)\n", f, l, (u32) (ofs));
 363         return _ipw_read32(ipw, ofs);
 364 }
 365
 366 /* alias to 32-bit direct read (low 4K of SRAM/regs), with debug wrapper */
 367 #define ipw_read32(ipw, ofs) __ipw_read32(__FILE__, __LINE__, ipw, ofs)
 368
 369 /* multi-byte read (above 4K), with debug wrapper */
 370 static void _ipw_read_indirect(struct ipw_priv *, u32, u8 *, int);
 371 static inline void __ipw_read_indirect(const char *f, int l,
 372                                        struct ipw_priv *a, u32 b, u8 * c, int d)
 373 {
 374         IPW_DEBUG_IO("%s %d: read_indirect(0x%08X) %d bytes\n", f, l, (u32) (b),
 375                      d);
 376         _ipw_read_indirect(a, b, c, d);
 377 }
 378
 379 /* alias to multi-byte read (SRAM/regs above 4K), with debug wrapper */
 380 #define ipw_read_indirect(a, b, c, d) __ipw_read_indirect(__FILE__, __LINE__, a, b, c, d)
 381
 382 /* alias to multi-byte read (SRAM/regs above 4K), with debug wrapper */
 383 static void _ipw_write_indirect(struct ipw_priv *priv, u32 addr, u8 * data,
 384                                 int num);
 385 #define ipw_write_indirect(a, b, c, d) \
 386         IPW_DEBUG_IO("%s %d: write_indirect(0x%08X) %d bytes\n", __FILE__, __LINE__, (u32)(b), d); \
 387         _ipw_write_indirect(a, b, c, d)
 388
 389 /* 32-bit indirect write (above 4K) */
 390 static void _ipw_write_reg32(struct ipw_priv *priv, u32 reg, u32 value)
 391 {
 392         IPW_DEBUG_IO(" %p : reg = 0x%8X : value = 0x%8X\n", priv, reg, value);
 393         _ipw_write32(priv, IPW_INDIRECT_ADDR, reg);
 394         _ipw_write32(priv, IPW_INDIRECT_DATA, value);
 395 }
 396
 397 /* 8-bit indirect write (above 4K) */
 398 static void _ipw_write_reg8(struct ipw_priv *priv, u32 reg, u8 value)
 399 {
 400         u32 aligned_addr = reg & IPW_INDIRECT_ADDR_MASK;        /* dword align */
 401         u32 dif_len = reg - aligned_addr;
 402
 403         IPW_DEBUG_IO(" reg = 0x%8X : value = 0x%8X\n", reg, value);
 404         _ipw_write32(priv, IPW_INDIRECT_ADDR, aligned_addr);
 405         _ipw_write8(priv, IPW_INDIRECT_DATA + dif_len, value);
 406 }
 407
 408 /* 16-bit indirect write (above 4K) */
 409 static void _ipw_write_reg16(struct ipw_priv *priv, u32 reg, u16 value)
 410 {
 411         u32 aligned_addr = reg & IPW_INDIRECT_ADDR_MASK;        /* dword align */
 412         u32 dif_len = (reg - aligned_addr) & (~0x1ul);
 413
 414         IPW_DEBUG_IO(" reg = 0x%8X : value = 0x%8X\n", reg, value);
 415         _ipw_write32(priv, IPW_INDIRECT_ADDR, aligned_addr);
 416         _ipw_write16(priv, IPW_INDIRECT_DATA + dif_len, value);
 417 }
 418
 419 /* 8-bit indirect read (above 4K) */
 420 static u8 _ipw_read_reg8(struct ipw_priv *priv, u32 reg)
 421 {
 422         u32 word;
 423         _ipw_write32(priv, IPW_INDIRECT_ADDR, reg & IPW_INDIRECT_ADDR_MASK);
 424         IPW_DEBUG_IO(" reg = 0x%8X : \n", reg);
 425         word = _ipw_read32(priv, IPW_INDIRECT_DATA);
 426         return (word >> ((reg & 0x3) * 8)) & 0xff;
 427 }
 428
 429 /* 32-bit indirect read (above 4K) */
 430 static u32 _ipw_read_reg32(struct ipw_priv *priv, u32 reg)
 431 {
 432         u32 value;
 433
 434         IPW_DEBUG_IO("%p : reg = 0x%08x\n", priv, reg);
 435
 436         _ipw_write32(priv, IPW_INDIRECT_ADDR, reg);
 437         value = _ipw_read32(priv, IPW_INDIRECT_DATA);
 438         IPW_DEBUG_IO(" reg = 0x%4X : value = 0x%4x \n", reg, value);
 439         return value;
 440 }
 441
 442 /* General purpose, no alignment requirement, iterative (multi-byte) read, */
 443 /*    for area above 1st 4K of SRAM/reg space */
 444 static void _ipw_read_indirect(struct ipw_priv *priv, u32 addr, u8 * buf,
 445                                int num)
 446 {
 447         u32 aligned_addr = addr & IPW_INDIRECT_ADDR_MASK;       /* dword align */
 448         u32 dif_len = addr - aligned_addr;
 449         u32 i;
 450
 451         IPW_DEBUG_IO("addr = %i, buf = %p, num = %i\n", addr, buf, num);
 452
 453         if (num <= 0) {
 454                 return;
 455         }
 456
 457         /* Read the first dword (or portion) byte by byte */
 458         if (unlikely(dif_len)) {
 459                 _ipw_write32(priv, IPW_INDIRECT_ADDR, aligned_addr);
 460                 /* Start reading at aligned_addr + dif_len */
 461                 for (i = dif_len; ((i < 4) && (num > 0)); i++, num--)
 462                         *buf++ = _ipw_read8(priv, IPW_INDIRECT_DATA + i);
 463                 aligned_addr += 4;
 464         }
 465
 466         /* Read all of the middle dwords as dwords, with auto-increment */
 467         _ipw_write32(priv, IPW_AUTOINC_ADDR, aligned_addr);
 468         for (; num >= 4; buf += 4, aligned_addr += 4, num -= 4)
 469                 *(u32 *) buf = _ipw_read32(priv, IPW_AUTOINC_DATA);
 470
 471         /* Read the last dword (or portion) byte by byte */
 472         if (unlikely(num)) {
 473                 _ipw_write32(priv, IPW_INDIRECT_ADDR, aligned_addr);
 474                 for (i = 0; num > 0; i++, num--)
 475                         *buf++ = ipw_read8(priv, IPW_INDIRECT_DATA + i);
 476         }
 477 }
 478
 479 /* General purpose, no alignment requirement, iterative (multi-byte) write, */
 480 /*    for area above 1st 4K of SRAM/reg space */
 481 static void _ipw_write_indirect(struct ipw_priv *priv, u32 addr, u8 * buf,
 482                                 int num)
 483 {
 484         u32 aligned_addr = addr & IPW_INDIRECT_ADDR_MASK;       /* dword align */
 485         u32 dif_len = addr - aligned_addr;
 486         u32 i;
 487
 488         IPW_DEBUG_IO("addr = %i, buf = %p, num = %i\n", addr, buf, num);
 489
 490         if (num <= 0) {
 491                 return;
 492         }
 493
 494         /* Write the first dword (or portion) byte by byte */
 495         if (unlikely(dif_len)) {
 496                 _ipw_write32(priv, IPW_INDIRECT_ADDR, aligned_addr);
 497                 /* Start writing at aligned_addr + dif_len */
 498                 for (i = dif_len; ((i < 4) && (num > 0)); i++, num--, buf++)
 499                         _ipw_write8(priv, IPW_INDIRECT_DATA + i, *buf);
 500                 aligned_addr += 4;
 501         }
 502
 503         /* Write all of the middle dwords as dwords, with auto-increment */
 504         _ipw_write32(priv, IPW_AUTOINC_ADDR, aligned_addr);
 505         for (; num >= 4; buf += 4, aligned_addr += 4, num -= 4)
 506                 _ipw_write32(priv, IPW_AUTOINC_DATA, *(u32 *) buf);
 507
 508         /* Write the last dword (or portion) byte by byte */
 509         if (unlikely(num)) {
 510                 _ipw_write32(priv, IPW_INDIRECT_ADDR, aligned_addr);
 511                 for (i = 0; num > 0; i++, num--, buf++)
 512                         _ipw_write8(priv, IPW_INDIRECT_DATA + i, *buf);
 513         }
 514 }
 515
 516 /* General purpose, no alignment requirement, iterative (multi-byte) write, */
 517 /*    for 1st 4K of SRAM/regs space */
 518 static void ipw_write_direct(struct ipw_priv *priv, u32 addr, void *buf,
 519                              int num)
 520 {
 521         memcpy_toio((priv->hw_base + addr), buf, num);
 522 }
 523
 524 /* Set bit(s) in low 4K of SRAM/regs */
 525 static inline void ipw_set_bit(struct ipw_priv *priv, u32 reg, u32 mask)
 526 {
 527         ipw_write32(priv, reg, ipw_read32(priv, reg) | mask);
 528 }
 529
 530 /* Clear bit(s) in low 4K of SRAM/regs */
 531 static inline void ipw_clear_bit(struct ipw_priv *priv, u32 reg, u32 mask)
 532 {
 533         ipw_write32(priv, reg, ipw_read32(priv, reg) & ~mask);
 534 }
 535
 536 static inline void __ipw_enable_interrupts(struct ipw_priv *priv)
 537 {
 538         if (priv->status & STATUS_INT_ENABLED)
 539                 return;
 540         priv->status |= STATUS_INT_ENABLED;
 541         ipw_write32(priv, IPW_INTA_MASK_R, IPW_INTA_MASK_ALL);
 542 }
 543
 544 static inline void __ipw_disable_interrupts(struct ipw_priv *priv)
 545 {
 546         if (!(priv->status & STATUS_INT_ENABLED))
 547                 return;
 548         priv->status &= ~STATUS_INT_ENABLED;
 549         ipw_write32(priv, IPW_INTA_MASK_R, ~IPW_INTA_MASK_ALL);
 550 }
 551
 552 static inline void ipw_enable_interrupts(struct ipw_priv *priv)
 553 {
 554         unsigned long flags;
 555
 556         spin_lock_irqsave(&priv->irq_lock, flags);
 557         __ipw_enable_interrupts(priv);
 558         spin_unlock_irqrestore(&priv->irq_lock, flags);
 559 }
 560
 561 static inline void ipw_disable_interrupts(struct ipw_priv *priv)
 562 {
 563         unsigned long flags;
 564
 565         spin_lock_irqsave(&priv->irq_lock, flags);
 566         __ipw_disable_interrupts(priv);
 567         spin_unlock_irqrestore(&priv->irq_lock, flags);
 568 }
 569
 570 #ifdef CONFIG_IPW2200_DEBUG
 571 static char *ipw_error_desc(u32 val)
 572 {
 573         switch (val) {
 574         case IPW_FW_ERROR_OK:
 575                 return "ERROR_OK";
 576         case IPW_FW_ERROR_FAIL:
 577                 return "ERROR_FAIL";
 578         case IPW_FW_ERROR_MEMORY_UNDERFLOW:
 579                 return "MEMORY_UNDERFLOW";
 580         case IPW_FW_ERROR_MEMORY_OVERFLOW:
 581                 return "MEMORY_OVERFLOW";
 582         case IPW_FW_ERROR_BAD_PARAM:
 583                 return "BAD_PARAM";
 584         case IPW_FW_ERROR_BAD_CHECKSUM:
 585                 return "BAD_CHECKSUM";
 586         case IPW_FW_ERROR_NMI_INTERRUPT:
 587                 return "NMI_INTERRUPT";
 588         case IPW_FW_ERROR_BAD_DATABASE:
 589                 return "BAD_DATABASE";
 590         case IPW_FW_ERROR_ALLOC_FAIL:
 591                 return "ALLOC_FAIL";
 592         case IPW_FW_ERROR_DMA_UNDERRUN:
 593                 return "DMA_UNDERRUN";
 594         case IPW_FW_ERROR_DMA_STATUS:
 595                 return "DMA_STATUS";
 596         case IPW_FW_ERROR_DINO_ERROR:
 597                 return "DINO_ERROR";
 598         case IPW_FW_ERROR_EEPROM_ERROR:
 599                 return "EEPROM_ERROR";
 600         case IPW_FW_ERROR_SYSASSERT:
 601                 return "SYSASSERT";
 602         case IPW_FW_ERROR_FATAL_ERROR:
 603                 return "FATAL_ERROR";
 604         default:
 605                 return "UNKNOWN_ERROR";
 606         }
 607 }
 608
 609 static void ipw_dump_error_log(struct ipw_priv *priv,
 610                                struct ipw_fw_error *error)
 611 {
 612         u32 i;
 613
 614         if (!error) {
 615                 IPW_ERROR("Error allocating and capturing error log.  "
 616                           "Nothing to dump.\n");
 617                 return;
 618         }
 619
 620         IPW_ERROR("Start IPW Error Log Dump:\n");
 621         IPW_ERROR("Status: 0x%08X, Config: %08X\n",
 622                   error->status, error->config);
 623
 624         for (i = 0; i < error->elem_len; i++)
 625                 IPW_ERROR("%s %i 0x%08x  0x%08x  0x%08x  0x%08x  0x%08x\n",
 626                           ipw_error_desc(error->elem[i].desc),
 627                           error->elem[i].time,
 628                           error->elem[i].blink1,
 629                           error->elem[i].blink2,
 630                           error->elem[i].link1,
 631                           error->elem[i].link2, error->elem[i].data);
 632         for (i = 0; i < error->log_len; i++)
 633                 IPW_ERROR("%i\t0x%08x\t%i\n",
 634                           error->log[i].time,
 635                           error->log[i].data, error->log[i].event);
 636 }
 637 #endif
 638
 639 static inline int ipw_is_init(struct ipw_priv *priv)
 640 {
 641         return (priv->status & STATUS_INIT) ? 1 : 0;
 642 }
 643
 644 static int ipw_get_ordinal(struct ipw_priv *priv, u32 ord, void *val, u32 * len)
 645 {
 646         u32 addr, field_info, field_len, field_count, total_len;
 647
 648         IPW_DEBUG_ORD("ordinal = %i\n", ord);
 649
 650         if (!priv || !val || !len) {
 651                 IPW_DEBUG_ORD("Invalid argument\n");
 652                 return -EINVAL;
 653         }
 654
 655         /* verify device ordinal tables have been initialized */
 656         if (!priv->table0_addr || !priv->table1_addr || !priv->table2_addr) {
 657                 IPW_DEBUG_ORD("Access ordinals before initialization\n");
 658                 return -EINVAL;
 659         }
 660
 661         switch (IPW_ORD_TABLE_ID_MASK & ord) {
 662         case IPW_ORD_TABLE_0_MASK:
 663                 /*
 664                  * TABLE 0: Direct access to a table of 32 bit values
 665                  *
 666                  * This is a very simple table with the data directly
 667                  * read from the table
 668                  */
 669
 670                 /* remove the table id from the ordinal */
 671                 ord &= IPW_ORD_TABLE_VALUE_MASK;
 672
 673                 /* boundary check */
 674                 if (ord > priv->table0_len) {
 675                         IPW_DEBUG_ORD("ordinal value (%i) longer then "
 676                                       "max (%i)\n", ord, priv->table0_len);
 677                         return -EINVAL;
 678                 }
 679
 680                 /* verify we have enough room to store the value */
 681                 if (*len < sizeof(u32)) {
 682                         IPW_DEBUG_ORD("ordinal buffer length too small, "
 683                                       "need %zd\n", sizeof(u32));
 684                         return -EINVAL;
 685                 }
 686
 687                 IPW_DEBUG_ORD("Reading TABLE0[%i] from offset 0x%08x\n",
 688                               ord, priv->table0_addr + (ord << 2));
 689
 690                 *len = sizeof(u32);
 691                 ord <<= 2;
 692                 *((u32 *) val) = ipw_read32(priv, priv->table0_addr + ord);
 693                 break;
 694
 695         case IPW_ORD_TABLE_1_MASK:
 696                 /*
 697                  * TABLE 1: Indirect access to a table of 32 bit values
 698                  *
 699                  * This is a fairly large table of u32 values each
 700                  * representing starting addr for the data (which is
 701                  * also a u32)
 702                  */
 703
 704                 /* remove the table id from the ordinal */
 705                 ord &= IPW_ORD_TABLE_VALUE_MASK;
 706
 707                 /* boundary check */
 708                 if (ord > priv->table1_len) {
 709                         IPW_DEBUG_ORD("ordinal value too long\n");
 710                         return -EINVAL;
 711                 }
 712
 713                 /* verify we have enough room to store the value */
 714                 if (*len < sizeof(u32)) {
 715                         IPW_DEBUG_ORD("ordinal buffer length too small, "
 716                                       "need %zd\n", sizeof(u32));
 717                         return -EINVAL;
 718                 }
 719
 720                 *((u32 *) val) =
 721                     ipw_read_reg32(priv, (priv->table1_addr + (ord << 2)));
 722                 *len = sizeof(u32);
 723                 break;
 724
 725         case IPW_ORD_TABLE_2_MASK:
 726                 /*
 727                  * TABLE 2: Indirect access to a table of variable sized values
 728                  *
 729                  * This table consist of six values, each containing
 730                  *     - dword containing the starting offset of the data
 731                  *     - dword containing the lengh in the first 16bits
 732                  *       and the count in the second 16bits
 733                  */
 734
 735                 /* remove the table id from the ordinal */
 736                 ord &= IPW_ORD_TABLE_VALUE_MASK;
 737
 738                 /* boundary check */
 739                 if (ord > priv->table2_len) {
 740                         IPW_DEBUG_ORD("ordinal value too long\n");
 741                         return -EINVAL;
 742                 }
 743
 744                 /* get the address of statistic */
 745                 addr = ipw_read_reg32(priv, priv->table2_addr + (ord << 3));
 746
 747                 /* get the second DW of statistics ;
 748                  * two 16-bit words - first is length, second is count */
 749                 field_info =
 750                     ipw_read_reg32(priv,
 751                                    priv->table2_addr + (ord << 3) +
 752                                    sizeof(u32));
 753
 754                 /* get each entry length */
 755                 field_len = *((u16 *) & field_info);
 756
 757                 /* get number of entries */
 758                 field_count = *(((u16 *) & field_info) + 1);
 759
 760                 /* abort if not enought memory */
 761                 total_len = field_len * field_count;
 762                 if (total_len > *len) {
 763                         *len = total_len;
 764                         return -EINVAL;
 765                 }
 766
 767                 *len = total_len;
 768                 if (!total_len)
 769                         return 0;
 770
 771                 IPW_DEBUG_ORD("addr = 0x%08x, total_len = %i, "
 772                               "field_info = 0x%08x\n",
 773                               addr, total_len, field_info);
 774                 ipw_read_indirect(priv, addr, val, total_len);
 775                 break;
 776
 777         default:
 778                 IPW_DEBUG_ORD("Invalid ordinal!\n");
 779                 return -EINVAL;
 780
 781         }
 782
 783         return 0;
 784 }
 785
 786 static void ipw_init_ordinals(struct ipw_priv *priv)
 787 {
 788         priv->table0_addr = IPW_ORDINALS_TABLE_LOWER;
 789         priv->table0_len = ipw_read32(priv, priv->table0_addr);
 790
 791         IPW_DEBUG_ORD("table 0 offset at 0x%08x, len = %i\n",
 792                       priv->table0_addr, priv->table0_len);
 793
 794         priv->table1_addr = ipw_read32(priv, IPW_ORDINALS_TABLE_1);
 795         priv->table1_len = ipw_read_reg32(priv, priv->table1_addr);
 796
 797         IPW_DEBUG_ORD("table 1 offset at 0x%08x, len = %i\n",
 798                       priv->table1_addr, priv->table1_len);
 799
 800         priv->table2_addr = ipw_read32(priv, IPW_ORDINALS_TABLE_2);
 801         priv->table2_len = ipw_read_reg32(priv, priv->table2_addr);
 802         priv->table2_len &= 0x0000ffff; /* use first two bytes */
 803
 804         IPW_DEBUG_ORD("table 2 offset at 0x%08x, len = %i\n",
 805                       priv->table2_addr, priv->table2_len);
 806
 807 }
 808
 809 static u32 ipw_register_toggle(u32 reg)
 810 {
 811         reg &= ~IPW_START_STANDBY;
 812         if (reg & IPW_GATE_ODMA)
 813                 reg &= ~IPW_GATE_ODMA;
 814         if (reg & IPW_GATE_IDMA)
 815                 reg &= ~IPW_GATE_IDMA;
 816         if (reg & IPW_GATE_ADMA)
 817                 reg &= ~IPW_GATE_ADMA;
 818         return reg;
 819 }
 820
 821 /*
 822  * LED behavior:
 823  * - On radio ON, turn on any LEDs that require to be on during start
 824  * - On initialization, start unassociated blink
 825  * - On association, disable unassociated blink
 826  * - On disassociation, start unassociated blink
 827  * - On radio OFF, turn off any LEDs started during radio on
 828  *
 829  */
 830 #define LD_TIME_LINK_ON msecs_to_jiffies(300)
 831 #define LD_TIME_LINK_OFF msecs_to_jiffies(2700)
 832 #define LD_TIME_ACT_ON msecs_to_jiffies(250)
 833
 834 static void ipw_led_link_on(struct ipw_priv *priv)
 835 {
 836         unsigned long flags;
 837         u32 led;
 838
 839         /* If configured to not use LEDs, or nic_type is 1,
 840          * then we don't toggle a LINK led */
 841         if (priv->config & CFG_NO_LED || priv->nic_type == EEPROM_NIC_TYPE_1)
 842                 return;
 843
 844         spin_lock_irqsave(&priv->lock, flags);
 845
 846         if (!(priv->status & STATUS_RF_KILL_MASK) &&
 847             !(priv->status & STATUS_LED_LINK_ON)) {
 848                 IPW_DEBUG_LED("Link LED On\n");
 849                 led = ipw_read_reg32(priv, IPW_EVENT_REG);
 850                 led |= priv->led_association_on;
 851
 852                 led = ipw_register_toggle(led);
 853
 854                 IPW_DEBUG_LED("Reg: 0x%08X\n", led);
 855                 ipw_write_reg32(priv, IPW_EVENT_REG, led);
 856
 857                 priv->status |= STATUS_LED_LINK_ON;
 858
 859                 /* If we aren't associated, schedule turning the LED off */
 860                 if (!(priv->status & STATUS_ASSOCIATED))
 861                         queue_delayed_work(priv->workqueue,
 862                                            &priv->led_link_off,
 863                                            LD_TIME_LINK_ON);
 864         }
 865
 866         spin_unlock_irqrestore(&priv->lock, flags);
 867 }
 868
 869 static void ipw_bg_led_link_on(void *data)
 870 {
 871         struct ipw_priv *priv = data;
 872         mutex_lock(&priv->mutex);
 873         ipw_led_link_on(data);
 874         mutex_unlock(&priv->mutex);
 875 }
 876
 877 static void ipw_led_link_off(struct ipw_priv *priv)
 878 {
 879         unsigned long flags;
 880         u32 led;
 881
 882         /* If configured not to use LEDs, or nic type is 1,
 883          * then we don't goggle the LINK led. */
 884         if (priv->config & CFG_NO_LED || priv->nic_type == EEPROM_NIC_TYPE_1)
 885                 return;
 886
 887         spin_lock_irqsave(&priv->lock, flags);
 888
 889         if (priv->status & STATUS_LED_LINK_ON) {
 890                 led = ipw_read_reg32(priv, IPW_EVENT_REG);
 891                 led &= priv->led_association_off;
 892                 led = ipw_register_toggle(led);
 893
 894                 IPW_DEBUG_LED("Reg: 0x%08X\n", led);
 895                 ipw_write_reg32(priv, IPW_EVENT_REG, led);
 896
 897                 IPW_DEBUG_LED("Link LED Off\n");
 898
 899                 priv->status &= ~STATUS_LED_LINK_ON;
 900
 901                 /* If we aren't associated and the radio is on, schedule
 902                  * turning the LED on (blink while unassociated) */
 903                 if (!(priv->status & STATUS_RF_KILL_MASK) &&
 904                     !(priv->status & STATUS_ASSOCIATED))
 905                         queue_delayed_work(priv->workqueue, &priv->led_link_on,
 906                                            LD_TIME_LINK_OFF);
 907
 908         }
 909
 910         spin_unlock_irqrestore(&priv->lock, flags);
 911 }
 912
 913 static void ipw_bg_led_link_off(void *data)
 914 {
 915         struct ipw_priv *priv = data;
 916         mutex_lock(&priv->mutex);
 917         ipw_led_link_off(data);
 918         mutex_unlock(&priv->mutex);
 919 }
 920
 921 static void __ipw_led_activity_on(struct ipw_priv *priv)
 922 {
 923         u32 led;
 924
 925         if (priv->config & CFG_NO_LED)
 926                 return;
 927
 928         if (priv->status & STATUS_RF_KILL_MASK)
 929                 return;
 930
 931         if (!(priv->status & STATUS_LED_ACT_ON)) {
 932                 led = ipw_read_reg32(priv, IPW_EVENT_REG);
 933                 led |= priv->led_activity_on;
 934
 935                 led = ipw_register_toggle(led);
 936
 937                 IPW_DEBUG_LED("Reg: 0x%08X\n", led);
 938                 ipw_write_reg32(priv, IPW_EVENT_REG, led);
 939
 940                 IPW_DEBUG_LED("Activity LED On\n");
 941
 942                 priv->status |= STATUS_LED_ACT_ON;
 943
 944                 cancel_delayed_work(&priv->led_act_off);
 945                 queue_delayed_work(priv->workqueue, &priv->led_act_off,
 946                                    LD_TIME_ACT_ON);
 947         } else {
 948                 /* Reschedule LED off for full time period */
 949                 cancel_delayed_work(&priv->led_act_off);
 950                 queue_delayed_work(priv->workqueue, &priv->led_act_off,
 951                                    LD_TIME_ACT_ON);
 952         }
 953 }
 954
 955 #if 0
 956 void ipw_led_activity_on(struct ipw_priv *priv)
 957 {
 958         unsigned long flags;
 959         spin_lock_irqsave(&priv->lock, flags);
 960         __ipw_led_activity_on(priv);
 961         spin_unlock_irqrestore(&priv->lock, flags);
 962 }
 963 #endif  /*  0  */
 964
 965 static void ipw_led_activity_off(struct ipw_priv *priv)
 966 {
 967         unsigned long flags;
 968         u32 led;
 969
 970         if (priv->config & CFG_NO_LED)
 971                 return;
 972
 973         spin_lock_irqsave(&priv->lock, flags);
 974
 975         if (priv->status & STATUS_LED_ACT_ON) {
 976                 led = ipw_read_reg32(priv, IPW_EVENT_REG);
 977                 led &= priv->led_activity_off;
 978
 979                 led = ipw_register_toggle(led);
 980
 981                 IPW_DEBUG_LED("Reg: 0x%08X\n", led);
 982                 ipw_write_reg32(priv, IPW_EVENT_REG, led);
 983
 984                 IPW_DEBUG_LED("Activity LED Off\n");
 985
 986                 priv->status &= ~STATUS_LED_ACT_ON;
 987         }
 988
 989         spin_unlock_irqrestore(&priv->lock, flags);
 990 }
 991
 992 static void ipw_bg_led_activity_off(void *data)
 993 {
 994         struct ipw_priv *priv = data;
 995         mutex_lock(&priv->mutex);
 996         ipw_led_activity_off(data);
 997         mutex_unlock(&priv->mutex);
 998 }
 999
1000 static void ipw_led_band_on(struct ipw_priv *priv)
1001 {
1002         unsigned long flags;
1003         u32 led;
1004
1005         /* Only nic type 1 supports mode LEDs */
1006         if (priv->config & CFG_NO_LED ||
1007             priv->nic_type != EEPROM_NIC_TYPE_1 || !priv->assoc_network)
1008                 return;
1009
1010         spin_lock_irqsave(&priv->lock, flags);
1011
1012         led = ipw_read_reg32(priv, IPW_EVENT_REG);
1013         if (priv->assoc_network->mode == IEEE_A) {
1014                 led |= priv->led_ofdm_on;
1015                 led &= priv->led_association_off;
1016                 IPW_DEBUG_LED("Mode LED On: 802.11a\n");
1017         } else if (priv->assoc_network->mode == IEEE_G) {
1018                 led |= priv->led_ofdm_on;
1019                 led |= priv->led_association_on;
1020                 IPW_DEBUG_LED("Mode LED On: 802.11g\n");
1021         } else {
1022                 led &= priv->led_ofdm_off;
1023                 led |= priv->led_association_on;
1024                 IPW_DEBUG_LED("Mode LED On: 802.11b\n");
1025         }
1026
1027         led = ipw_register_toggle(led);
1028
1029         IPW_DEBUG_LED("Reg: 0x%08X\n", led);
1030         ipw_write_reg32(priv, IPW_EVENT_REG, led);
1031
1032         spin_unlock_irqrestore(&priv->lock, flags);
1033 }
1034
1035 static void ipw_led_band_off(struct ipw_priv *priv)
1036 {
1037         unsigned long flags;
1038         u32 led;
1039
1040         /* Only nic type 1 supports mode LEDs */
1041         if (priv->config & CFG_NO_LED || priv->nic_type != EEPROM_NIC_TYPE_1)
1042                 return;
1043
1044         spin_lock_irqsave(&priv->lock, flags);
1045
1046         led = ipw_read_reg32(priv, IPW_EVENT_REG);
1047         led &= priv->led_ofdm_off;
1048         led &= priv->led_association_off;
1049
1050         led = ipw_register_toggle(led);
1051
1052         IPW_DEBUG_LED("Reg: 0x%08X\n", led);
1053         ipw_write_reg32(priv, IPW_EVENT_REG, led);
1054
1055         spin_unlock_irqrestore(&priv->lock, flags);
1056 }
1057
1058 static void ipw_led_radio_on(struct ipw_priv *priv)
1059 {
1060         ipw_led_link_on(priv);
1061 }
1062
1063 static void ipw_led_radio_off(struct ipw_priv *priv)
1064 {
1065         ipw_led_activity_off(priv);
1066         ipw_led_link_off(priv);
1067 }
1068
1069 static void ipw_led_link_up(struct ipw_priv *priv)
1070 {
1071         /* Set the Link Led on for all nic types */
1072         ipw_led_link_on(priv);
1073 }
1074
1075 static void ipw_led_link_down(struct ipw_priv *priv)
1076 {
1077         ipw_led_activity_off(priv);
1078         ipw_led_link_off(priv);
1079
1080         if (priv->status & STATUS_RF_KILL_MASK)
1081                 ipw_led_radio_off(priv);
1082 }
1083
1084 static void ipw_led_init(struct ipw_priv *priv)
1085 {
1086         priv->nic_type = priv->eeprom[EEPROM_NIC_TYPE];
1087
1088         /* Set the default PINs for the link and activity leds */
1089         priv->led_activity_on = IPW_ACTIVITY_LED;
1090         priv->led_activity_off = ~(IPW_ACTIVITY_LED);
1091
1092         priv->led_association_on = IPW_ASSOCIATED_LED;
1093         priv->led_association_off = ~(IPW_ASSOCIATED_LED);
1094
1095         /* Set the default PINs for the OFDM leds */
1096         priv->led_ofdm_on = IPW_OFDM_LED;
1097         priv->led_ofdm_off = ~(IPW_OFDM_LED);
1098
1099         switch (priv->nic_type) {
1100         case EEPROM_NIC_TYPE_1:
1101                 /* In this NIC type, the LEDs are reversed.... */
1102                 priv->led_activity_on = IPW_ASSOCIATED_LED;
1103                 priv->led_activity_off = ~(IPW_ASSOCIATED_LED);
1104                 priv->led_association_on = IPW_ACTIVITY_LED;
1105                 priv->led_association_off = ~(IPW_ACTIVITY_LED);
1106
1107                 if (!(priv->config & CFG_NO_LED))
1108                         ipw_led_band_on(priv);
1109
1110                 /* And we don't blink link LEDs for this nic, so
1111                  * just return here */
1112                 return;
1113
1114         case EEPROM_NIC_TYPE_3:
1115         case EEPROM_NIC_TYPE_2:
1116         case EEPROM_NIC_TYPE_4:
1117         case EEPROM_NIC_TYPE_0:
1118                 break;
1119
1120         default:
1121                 IPW_DEBUG_INFO("Unknown NIC type from EEPROM: %d\n",
1122                                priv->nic_type);
1123                 priv->nic_type = EEPROM_NIC_TYPE_0;
1124                 break;
1125         }
1126
1127         if (!(priv->config & CFG_NO_LED)) {
1128                 if (priv->status & STATUS_ASSOCIATED)
1129                         ipw_led_link_on(priv);
1130                 else
1131                         ipw_led_link_off(priv);
1132         }
1133 }
1134
1135 static void ipw_led_shutdown(struct ipw_priv *priv)
1136 {
1137         ipw_led_activity_off(priv);
1138         ipw_led_link_off(priv);
1139         ipw_led_band_off(priv);
1140         cancel_delayed_work(&priv->led_link_on);
1141         cancel_delayed_work(&priv->led_link_off);
1142         cancel_delayed_work(&priv->led_act_off);
1143 }
1144
1145 /*
1146  * The following adds a new attribute to the sysfs representation
1147  * of this device driver (i.e. a new file in /sys/bus/pci/drivers/ipw/)
1148  * used for controling the debug level.
1149  *
1150  * See the level definitions in ipw for details.
1151  */
1152 static ssize_t show_debug_level(struct device_driver *d, char *buf)
1153 {
1154         return sprintf(buf, "0x%08X\n", ipw_debug_level);
1155 }
1156
1157 static ssize_t store_debug_level(struct device_driver *d, const char *buf,
1158                                  size_t count)
1159 {
1160         char *p = (char *)buf;
1161         u32 val;
1162
1163         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
1164                 p++;
1165                 if (p[0] == 'x' || p[0] == 'X')
1166                         p++;
1167                 val = simple_strtoul(p, &p, 16);
1168         } else
1169                 val = simple_strtoul(p, &p, 10);
1170         if (p == buf)
1171                 printk(KERN_INFO DRV_NAME
1172                        ": %s is not in hex or decimal form.\n", buf);
1173         else
1174                 ipw_debug_level = val;
1175
1176         return strnlen(buf, count);
1177 }
1178
1179 static DRIVER_ATTR(debug_level, S_IWUSR | S_IRUGO,
1180                    show_debug_level, store_debug_level);
1181
1182 static inline u32 ipw_get_event_log_len(struct ipw_priv *priv)
1183 {
1184         /* length = 1st dword in log */
1185         return ipw_read_reg32(priv, ipw_read32(priv, IPW_EVENT_LOG));
1186 }
1187
1188 static void ipw_capture_event_log(struct ipw_priv *priv,
1189                                   u32 log_len, struct ipw_event *log)
1190 {
1191         u32 base;
1192
1193         if (log_len) {
1194                 base = ipw_read32(priv, IPW_EVENT_LOG);
1195                 ipw_read_indirect(priv, base + sizeof(base) + sizeof(u32),
1196                                   (u8 *) log, sizeof(*log) * log_len);
1197         }
1198 }
1199
1200 static struct ipw_fw_error *ipw_alloc_error_log(struct ipw_priv *priv)
1201 {
1202         struct ipw_fw_error *error;
1203         u32 log_len = ipw_get_event_log_len(priv);
1204         u32 base = ipw_read32(priv, IPW_ERROR_LOG);
1205         u32 elem_len = ipw_read_reg32(priv, base);
1206
1207         error = kmalloc(sizeof(*error) +
1208                         sizeof(*error->elem) * elem_len +
1209                         sizeof(*error->log) * log_len, GFP_ATOMIC);
1210         if (!error) {
1211                 IPW_ERROR("Memory allocation for firmware error log "
1212                           "failed.\n");
1213                 return NULL;
1214         }
1215         error->jiffies = jiffies;
1216         error->status = priv->status;
1217         error->config = priv->config;
1218         error->elem_len = elem_len;
1219         error->log_len = log_len;
1220         error->elem = (struct ipw_error_elem *)error->payload;
1221         error->log = (struct ipw_event *)(error->elem + elem_len);
1222
1223         ipw_capture_event_log(priv, log_len, error->log);
1224
1225         if (elem_len)
1226                 ipw_read_indirect(priv, base + sizeof(base), (u8 *) error->elem,
1227                                   sizeof(*error->elem) * elem_len);
1228
1229         return error;
1230 }
1231
1232 static ssize_t show_event_log(struct device *d,
1233                               struct device_attribute *attr, char *buf)
1234 {
1235         struct ipw_priv *priv = dev_get_drvdata(d);
1236         u32 log_len = ipw_get_event_log_len(priv);
1237         struct ipw_event log[log_len];
1238         u32 len = 0, i;
1239
1240         ipw_capture_event_log(priv, log_len, log);
1241
1242         len += snprintf(buf + len, PAGE_SIZE - len, "%08X", log_len);
1243         for (i = 0; i < log_len; i++)
1244                 len += snprintf(buf + len, PAGE_SIZE - len,
1245                                 "\n%08X%08X%08X",
1246                                 log[i].time, log[i].event, log[i].data);
1247         len += snprintf(buf + len, PAGE_SIZE - len, "\n");
1248         return len;
1249 }
1250
1251 static DEVICE_ATTR(event_log, S_IRUGO, show_event_log, NULL);
1252
1253 static ssize_t show_error(struct device *d,
1254                           struct device_attribute *attr, char *buf)
1255 {
1256         struct ipw_priv *priv = dev_get_drvdata(d);
1257         u32 len = 0, i;
1258         if (!priv->error)
1259                 return 0;
1260         len += snprintf(buf + len, PAGE_SIZE - len,
1261                         "%08lX%08X%08X%08X",
1262                         priv->error->jiffies,
1263                         priv->error->status,
1264                         priv->error->config, priv->error->elem_len);
1265         for (i = 0; i < priv->error->elem_len; i++)
1266                 len += snprintf(buf + len, PAGE_SIZE - len,
1267                                 "\n%08X%08X%08X%08X%08X%08X%08X",
1268                                 priv->error->elem[i].time,
1269                                 priv->error->elem[i].desc,
1270                                 priv->error->elem[i].blink1,
1271                                 priv->error->elem[i].blink2,
1272                                 priv->error->elem[i].link1,
1273                                 priv->error->elem[i].link2,
1274                                 priv->error->elem[i].data);
1275
1276         len += snprintf(buf + len, PAGE_SIZE - len,
1277                         "\n%08X", priv->error->log_len);
1278         for (i = 0; i < priv->error->log_len; i++)
1279                 len += snprintf(buf + len, PAGE_SIZE - len,
1280                                 "\n%08X%08X%08X",
1281                                 priv->error->log[i].time,
1282                                 priv->error->log[i].event,
1283                                 priv->error->log[i].data);
1284         len += snprintf(buf + len, PAGE_SIZE - len, "\n");
1285         return len;
1286 }
1287
1288 static ssize_t clear_error(struct device *d,
1289                            struct device_attribute *attr,
1290                            const char *buf, size_t count)
1291 {
1292         struct ipw_priv *priv = dev_get_drvdata(d);
1293
1294         kfree(priv->error);
1295         priv->error = NULL;
1296         return count;
1297 }
1298
1299 static DEVICE_ATTR(error, S_IRUGO | S_IWUSR, show_error, clear_error);
1300
1301 static ssize_t show_cmd_log(struct device *d,
1302                             struct device_attribute *attr, char *buf)
1303 {
1304         struct ipw_priv *priv = dev_get_drvdata(d);
1305         u32 len = 0, i;
1306         if (!priv->cmdlog)
1307                 return 0;
1308         for (i = (priv->cmdlog_pos + 1) % priv->cmdlog_len;
1309              (i != priv->cmdlog_pos) && (PAGE_SIZE - len);
1310              i = (i + 1) % priv->cmdlog_len) {
1311                 len +=
1312                     snprintf(buf + len, PAGE_SIZE - len,
1313                              "\n%08lX%08X%08X%08X\n", priv->cmdlog[i].jiffies,
1314                              priv->cmdlog[i].retcode, priv->cmdlog[i].cmd.cmd,
1315                              priv->cmdlog[i].cmd.len);
1316                 len +=
1317                     snprintk_buf(buf + len, PAGE_SIZE - len,
1318                                  (u8 *) priv->cmdlog[i].cmd.param,
1319                                  priv->cmdlog[i].cmd.len);
1320                 len += snprintf(buf + len, PAGE_SIZE - len, "\n");
1321         }
1322         len += snprintf(buf + len, PAGE_SIZE - len, "\n");
1323         return len;
1324 }
1325
1326 static DEVICE_ATTR(cmd_log, S_IRUGO, show_cmd_log, NULL);
1327
1328 #ifdef CONFIG_IPW2200_PROMISCUOUS
1329 static void ipw_prom_free(struct ipw_priv *priv);
1330 static int ipw_prom_alloc(struct ipw_priv *priv);
1331 static ssize_t store_rtap_iface(struct device *d,
1332                          struct device_attribute *attr,
1333                          const char *buf, size_t count)
1334 {
1335         struct ipw_priv *priv = dev_get_drvdata(d);
1336         int rc = 0;
1337
1338         if (count < 1)
1339                 return -EINVAL;
1340
1341         switch (buf[0]) {
1342         case '0':
1343                 if (!rtap_iface)
1344                         return count;
1345
1346                 if (netif_running(priv->prom_net_dev)) {
1347                         IPW_WARNING("Interface is up.  Cannot unregister.\n");
1348                         return count;
1349                 }
1350
1351                 ipw_prom_free(priv);
1352                 rtap_iface = 0;
1353                 break;
1354
1355         case '1':
1356                 if (rtap_iface)
1357                         return count;
1358
1359                 rc = ipw_prom_alloc(priv);
1360                 if (!rc)
1361                         rtap_iface = 1;
1362                 break;
1363
1364         default:
1365                 return -EINVAL;
1366         }
1367
1368         if (rc) {
1369                 IPW_ERROR("Failed to register promiscuous network "
1370                           "device (error %d).\n", rc);
1371         }
1372
1373         return count;
1374 }
1375
1376 static ssize_t show_rtap_iface(struct device *d,
1377                         struct device_attribute *attr,
1378                         char *buf)
1379 {
1380         struct ipw_priv *priv = dev_get_drvdata(d);
1381         if (rtap_iface)
1382                 return sprintf(buf, "%s", priv->prom_net_dev->name);
1383         else {
1384                 buf[0] = '-';
1385                 buf[1] = '1';
1386                 buf[2] = '\0';
1387                 return 3;
1388         }
1389 }
1390
1391 static DEVICE_ATTR(rtap_iface, S_IWUSR | S_IRUSR, show_rtap_iface,
1392                    store_rtap_iface);
1393
1394 static ssize_t store_rtap_filter(struct device *d,
1395                          struct device_attribute *attr,
1396                          const char *buf, size_t count)
1397 {
1398         struct ipw_priv *priv = dev_get_drvdata(d);
1399
1400         if (!priv->prom_priv) {
1401                 IPW_ERROR("Attempting to set filter without "
1402                           "rtap_iface enabled.\n");
1403                 return -EPERM;
1404         }
1405
1406         priv->prom_priv->filter = simple_strtol(buf, NULL, 0);
1407
1408         IPW_DEBUG_INFO("Setting rtap filter to " BIT_FMT16 "\n",
1409                        BIT_ARG16(priv->prom_priv->filter));
1410
1411         return count;
1412 }
1413
1414 static ssize_t show_rtap_filter(struct device *d,
1415                         struct device_attribute *attr,
1416                         char *buf)
1417 {
1418         struct ipw_priv *priv = dev_get_drvdata(d);
1419         return sprintf(buf, "0x%04X",
1420                        priv->prom_priv ? priv->prom_priv->filter : 0);
1421 }
1422
1423 static DEVICE_ATTR(rtap_filter, S_IWUSR | S_IRUSR, show_rtap_filter,
1424                    store_rtap_filter);
1425 #endif
1426
1427 static ssize_t show_scan_age(struct device *d, struct device_attribute *attr,
1428                              char *buf)
1429 {
1430         struct ipw_priv *priv = dev_get_drvdata(d);
1431         return sprintf(buf, "%d\n", priv->ieee->scan_age);
1432 }
1433
1434 static ssize_t store_scan_age(struct device *d, struct device_attribute *attr,
1435                               const char *buf, size_t count)
1436 {
1437         struct ipw_priv *priv = dev_get_drvdata(d);
1438 #ifdef CONFIG_IPW2200_DEBUG
1439         struct net_device *dev = priv->net_dev;
1440 #endif
1441         char buffer[] = "00000000";
1442         unsigned long len =
1443             (sizeof(buffer) - 1) > count ? count : sizeof(buffer) - 1;
1444         unsigned long val;
1445         char *p = buffer;
1446
1447         IPW_DEBUG_INFO("enter\n");
1448
1449         strncpy(buffer, buf, len);
1450         buffer[len] = 0;
1451
1452         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
1453                 p++;
1454                 if (p[0] == 'x' || p[0] == 'X')
1455                         p++;
1456                 val = simple_strtoul(p, &p, 16);
1457         } else
1458                 val = simple_strtoul(p, &p, 10);
1459         if (p == buffer) {
1460                 IPW_DEBUG_INFO("%s: user supplied invalid value.\n", dev->name);
1461         } else {
1462                 priv->ieee->scan_age = val;
1463                 IPW_DEBUG_INFO("set scan_age = %u\n", priv->ieee->scan_age);
1464         }
1465
1466         IPW_DEBUG_INFO("exit\n");
1467         return len;
1468 }
1469
1470 static DEVICE_ATTR(scan_age, S_IWUSR | S_IRUGO, show_scan_age, store_scan_age);
1471
1472 static ssize_t show_led(struct device *d, struct device_attribute *attr,
1473                         char *buf)
1474 {
1475         struct ipw_priv *priv = dev_get_drvdata(d);
1476         return sprintf(buf, "%d\n", (priv->config & CFG_NO_LED) ? 0 : 1);
1477 }
1478
1479 static ssize_t store_led(struct device *d, struct device_attribute *attr,
1480                          const char *buf, size_t count)
1481 {
1482         struct ipw_priv *priv = dev_get_drvdata(d);
1483
1484         IPW_DEBUG_INFO("enter\n");
1485
1486         if (count == 0)
1487                 return 0;
1488
1489         if (*buf == 0) {
1490                 IPW_DEBUG_LED("Disabling LED control.\n");
1491                 priv->config |= CFG_NO_LED;
1492                 ipw_led_shutdown(priv);
1493         } else {
1494                 IPW_DEBUG_LED("Enabling LED control.\n");
1495                 priv->config &= ~CFG_NO_LED;
1496                 ipw_led_init(priv);
1497         }
1498
1499         IPW_DEBUG_INFO("exit\n");
1500         return count;
1501 }
1502
1503 static DEVICE_ATTR(led, S_IWUSR | S_IRUGO, show_led, store_led);
1504
1505 static ssize_t show_status(struct device *d,
1506                            struct device_attribute *attr, char *buf)
1507 {
1508         struct ipw_priv *p = d->driver_data;
1509         return sprintf(buf, "0x%08x\n", (int)p->status);
1510 }
1511
1512 static DEVICE_ATTR(status, S_IRUGO, show_status, NULL);
1513
1514 static ssize_t show_cfg(struct device *d, struct device_attribute *attr,
1515                         char *buf)
1516 {
1517         struct ipw_priv *p = d->driver_data;
1518         return sprintf(buf, "0x%08x\n", (int)p->config);
1519 }
1520
1521 static DEVICE_ATTR(cfg, S_IRUGO, show_cfg, NULL);
1522
1523 static ssize_t show_nic_type(struct device *d,
1524                              struct device_attribute *attr, char *buf)
1525 {
1526         struct ipw_priv *priv = d->driver_data;
1527         return sprintf(buf, "TYPE: %d\n", priv->nic_type);
1528 }
1529
1530 static DEVICE_ATTR(nic_type, S_IRUGO, show_nic_type, NULL);
1531
1532 static ssize_t show_ucode_version(struct device *d,
1533                                   struct device_attribute *attr, char *buf)
1534 {
1535         u32 len = sizeof(u32), tmp = 0;
1536         struct ipw_priv *p = d->driver_data;
1537
1538         if (ipw_get_ordinal(p, IPW_ORD_STAT_UCODE_VERSION, &tmp, &len))
1539                 return 0;
1540
1541         return sprintf(buf, "0x%08x\n", tmp);
1542 }
1543
1544 static DEVICE_ATTR(ucode_version, S_IWUSR | S_IRUGO, show_ucode_version, NULL);
1545
1546 static ssize_t show_rtc(struct device *d, struct device_attribute *attr,
1547                         char *buf)
1548 {
1549         u32 len = sizeof(u32), tmp = 0;
1550         struct ipw_priv *p = d->driver_data;
1551
1552         if (ipw_get_ordinal(p, IPW_ORD_STAT_RTC, &tmp, &len))
1553                 return 0;
1554
1555         return sprintf(buf, "0x%08x\n", tmp);
1556 }
1557
1558 static DEVICE_ATTR(rtc, S_IWUSR | S_IRUGO, show_rtc, NULL);
1559
1560 /*
1561  * Add a device attribute to view/control the delay between eeprom
1562  * operations.
1563  */
1564 static ssize_t show_eeprom_delay(struct device *d,
1565                                  struct device_attribute *attr, char *buf)
1566 {
1567         int n = ((struct ipw_priv *)d->driver_data)->eeprom_delay;
1568         return sprintf(buf, "%i\n", n);
1569 }
1570 static ssize_t store_eeprom_delay(struct device *d,
1571                                   struct device_attribute *attr,
1572                                   const char *buf, size_t count)
1573 {
1574         struct ipw_priv *p = d->driver_data;
1575         sscanf(buf, "%i", &p->eeprom_delay);
1576         return strnlen(buf, count);
1577 }
1578
1579 static DEVICE_ATTR(eeprom_delay, S_IWUSR | S_IRUGO,
1580                    show_eeprom_delay, store_eeprom_delay);
1581
1582 static ssize_t show_command_event_reg(struct device *d,
1583                                       struct device_attribute *attr, char *buf)
1584 {
1585         u32 reg = 0;
1586         struct ipw_priv *p = d->driver_data;
1587
1588         reg = ipw_read_reg32(p, IPW_INTERNAL_CMD_EVENT);
1589         return sprintf(buf, "0x%08x\n", reg);
1590 }
1591 static ssize_t store_command_event_reg(struct device *d,
1592                                        struct device_attribute *attr,
1593                                        const char *buf, size_t count)
1594 {
1595         u32 reg;
1596         struct ipw_priv *p = d->driver_data;
1597
1598         sscanf(buf, "%x", &reg);
1599         ipw_write_reg32(p, IPW_INTERNAL_CMD_EVENT, reg);
1600         return strnlen(buf, count);
1601 }
1602
1603 static DEVICE_ATTR(command_event_reg, S_IWUSR | S_IRUGO,
1604                    show_command_event_reg, store_command_event_reg);
1605
1606 static ssize_t show_mem_gpio_reg(struct device *d,
1607                                  struct device_attribute *attr, char *buf)
1608 {
1609         u32 reg = 0;
1610         struct ipw_priv *p = d->driver_data;
1611
1612         reg = ipw_read_reg32(p, 0x301100);
1613         return sprintf(buf, "0x%08x\n", reg);
1614 }
1615 static ssize_t store_mem_gpio_reg(struct device *d,
1616                                   struct device_attribute *attr,
1617                                   const char *buf, size_t count)
1618 {
1619         u32 reg;
1620         struct ipw_priv *p = d->driver_data;
1621
1622         sscanf(buf, "%x", &reg);
1623         ipw_write_reg32(p, 0x301100, reg);
1624         return strnlen(buf, count);
1625 }
1626
1627 static DEVICE_ATTR(mem_gpio_reg, S_IWUSR | S_IRUGO,
1628                    show_mem_gpio_reg, store_mem_gpio_reg);
1629
1630 static ssize_t show_indirect_dword(struct device *d,
1631                                    struct device_attribute *attr, char *buf)
1632 {
1633         u32 reg = 0;
1634         struct ipw_priv *priv = d->driver_data;
1635
1636         if (priv->status & STATUS_INDIRECT_DWORD)
1637                 reg = ipw_read_reg32(priv, priv->indirect_dword);
1638         else
1639                 reg = 0;
1640
1641         return sprintf(buf, "0x%08x\n", reg);
1642 }
1643 static ssize_t store_indirect_dword(struct device *d,
1644                                     struct device_attribute *attr,
1645                                     const char *buf, size_t count)
1646 {
1647         struct ipw_priv *priv = d->driver_data;
1648
1649         sscanf(buf, "%x", &priv->indirect_dword);
1650         priv->status |= STATUS_INDIRECT_DWORD;
1651         return strnlen(buf, count);
1652 }
1653
1654 static DEVICE_ATTR(indirect_dword, S_IWUSR | S_IRUGO,
1655                    show_indirect_dword, store_indirect_dword);
1656
1657 static ssize_t show_indirect_byte(struct device *d,
1658                                   struct device_attribute *attr, char *buf)
1659 {
1660         u8 reg = 0;
1661         struct ipw_priv *priv = d->driver_data;
1662
1663         if (priv->status & STATUS_INDIRECT_BYTE)
1664                 reg = ipw_read_reg8(priv, priv->indirect_byte);
1665         else
1666                 reg = 0;
1667
1668         return sprintf(buf, "0x%02x\n", reg);
1669 }
1670 static ssize_t store_indirect_byte(struct device *d,
1671                                    struct device_attribute *attr,
1672                                    const char *buf, size_t count)
1673 {
1674         struct ipw_priv *priv = d->driver_data;
1675
1676         sscanf(buf, "%x", &priv->indirect_byte);
1677         priv->status |= STATUS_INDIRECT_BYTE;
1678         return strnlen(buf, count);
1679 }
1680
1681 static DEVICE_ATTR(indirect_byte, S_IWUSR | S_IRUGO,
1682                    show_indirect_byte, store_indirect_byte);
1683
1684 static ssize_t show_direct_dword(struct device *d,
1685                                  struct device_attribute *attr, char *buf)
1686 {
1687         u32 reg = 0;
1688         struct ipw_priv *priv = d->driver_data;
1689
1690         if (priv->status & STATUS_DIRECT_DWORD)
1691                 reg = ipw_read32(priv, priv->direct_dword);
1692         else
1693                 reg = 0;
1694
1695         return sprintf(buf, "0x%08x\n", reg);
1696 }
1697 static ssize_t store_direct_dword(struct device *d,
1698                                   struct device_attribute *attr,
1699                                   const char *buf, size_t count)
1700 {
1701         struct ipw_priv *priv = d->driver_data;
1702
1703         sscanf(buf, "%x", &priv->direct_dword);
1704         priv->status |= STATUS_DIRECT_DWORD;
1705         return strnlen(buf, count);
1706 }
1707
1708 static DEVICE_ATTR(direct_dword, S_IWUSR | S_IRUGO,
1709                    show_direct_dword, store_direct_dword);
1710
1711 static int rf_kill_active(struct ipw_priv *priv)
1712 {
1713         if (0 == (ipw_read32(priv, 0x30) & 0x10000))
1714                 priv->status |= STATUS_RF_KILL_HW;
1715         else
1716                 priv->status &= ~STATUS_RF_KILL_HW;
1717
1718         return (priv->status & STATUS_RF_KILL_HW) ? 1 : 0;
1719 }
1720
1721 static ssize_t show_rf_kill(struct device *d, struct device_attribute *attr,
1722                             char *buf)
1723 {
1724         /* 0 - RF kill not enabled
1725            1 - SW based RF kill active (sysfs)
1726            2 - HW based RF kill active
1727            3 - Both HW and SW baed RF kill active */
1728         struct ipw_priv *priv = d->driver_data;
1729         int val = ((priv->status & STATUS_RF_KILL_SW) ? 0x1 : 0x0) |
1730             (rf_kill_active(priv) ? 0x2 : 0x0);
1731         return sprintf(buf, "%i\n", val);
1732 }
1733
1734 static int ipw_radio_kill_sw(struct ipw_priv *priv, int disable_radio)
1735 {
1736         if ((disable_radio ? 1 : 0) ==
1737             ((priv->status & STATUS_RF_KILL_SW) ? 1 : 0))
1738                 return 0;
1739
1740         IPW_DEBUG_RF_KILL("Manual SW RF Kill set to: RADIO  %s\n",
1741                           disable_radio ? "OFF" : "ON");
1742
1743         if (disable_radio) {
1744                 priv->status |= STATUS_RF_KILL_SW;
1745
1746                 if (priv->workqueue)
1747                         cancel_delayed_work(&priv->request_scan);
1748                 queue_work(priv->workqueue, &priv->down);
1749         } else {
1750                 priv->status &= ~STATUS_RF_KILL_SW;
1751                 if (rf_kill_active(priv)) {
1752                         IPW_DEBUG_RF_KILL("Can not turn radio back on - "
1753                                           "disabled by HW switch\n");
1754                         /* Make sure the RF_KILL check timer is running */
1755                         cancel_delayed_work(&priv->rf_kill);
1756                         queue_delayed_work(priv->workqueue, &priv->rf_kill,
1757                                            2 * HZ);
1758                 } else
1759                         queue_work(priv->workqueue, &priv->up);
1760         }
1761
1762         return 1;
1763 }
1764
1765 static ssize_t store_rf_kill(struct device *d, struct device_attribute *attr,
1766                              const char *buf, size_t count)
1767 {
1768         struct ipw_priv *priv = d->driver_data;
1769
1770         ipw_radio_kill_sw(priv, buf[0] == '1');
1771
1772         return count;
1773 }
1774
1775 static DEVICE_ATTR(rf_kill, S_IWUSR | S_IRUGO, show_rf_kill, store_rf_kill);
1776
1777 static ssize_t show_speed_scan(struct device *d, struct device_attribute *attr,
1778                                char *buf)
1779 {
1780         struct ipw_priv *priv = (struct ipw_priv *)d->driver_data;
1781         int pos = 0, len = 0;
1782         if (priv->config & CFG_SPEED_SCAN) {
1783                 while (priv->speed_scan[pos] != 0)
1784                         len += sprintf(&buf[len], "%d ",
1785                                        priv->speed_scan[pos++]);
1786                 return len + sprintf(&buf[len], "\n");
1787         }
1788
1789         return sprintf(buf, "0\n");
1790 }
1791
1792 static ssize_t store_speed_scan(struct device *d, struct device_attribute *attr,
1793                                 const char *buf, size_t count)
1794 {
1795         struct ipw_priv *priv = (struct ipw_priv *)d->driver_data;
1796         int channel, pos = 0;
1797         const char *p = buf;
1798
1799         /* list of space separated channels to scan, optionally ending with 0 */
1800         while ((channel = simple_strtol(p, NULL, 0))) {
1801                 if (pos == MAX_SPEED_SCAN - 1) {
1802                         priv->speed_scan[pos] = 0;
1803                         break;
1804                 }
1805
1806                 if (ieee80211_is_valid_channel(priv->ieee, channel))
1807                         priv->speed_scan[pos++] = channel;
1808                 else
1809                         IPW_WARNING("Skipping invalid channel request: %d\n",
1810                                     channel);
1811                 p = strchr(p, ' ');
1812                 if (!p)
1813                         break;
1814                 while (*p == ' ' || *p == '\t')
1815                         p++;
1816         }
1817
1818         if (pos == 0)
1819                 priv->config &= ~CFG_SPEED_SCAN;
1820         else {
1821                 priv->speed_scan_pos = 0;
1822                 priv->config |= CFG_SPEED_SCAN;
1823         }
1824
1825         return count;
1826 }
1827
1828 static DEVICE_ATTR(speed_scan, S_IWUSR | S_IRUGO, show_speed_scan,
1829                    store_speed_scan);
1830
1831 static ssize_t show_net_stats(struct device *d, struct device_attribute *attr,
1832                               char *buf)
1833 {
1834         struct ipw_priv *priv = (struct ipw_priv *)d->driver_data;
1835         return sprintf(buf, "%c\n", (priv->config & CFG_NET_STATS) ? '1' : '0');
1836 }
1837
1838 static ssize_t store_net_stats(struct device *d, struct device_attribute *attr,
1839                                const char *buf, size_t count)
1840 {
1841         struct ipw_priv *priv = (struct ipw_priv *)d->driver_data;
1842         if (buf[0] == '1')
1843                 priv->config |= CFG_NET_STATS;
1844         else
1845                 priv->config &= ~CFG_NET_STATS;
1846
1847         return count;
1848 }
1849
1850 static DEVICE_ATTR(net_stats, S_IWUSR | S_IRUGO,
1851                    show_net_stats, store_net_stats);
1852
1853 static void notify_wx_assoc_event(struct ipw_priv *priv)
1854 {
1855         union iwreq_data wrqu;
1856         wrqu.ap_addr.sa_family = ARPHRD_ETHER;
1857         if (priv->status & STATUS_ASSOCIATED)
1858                 memcpy(wrqu.ap_addr.sa_data, priv->bssid, ETH_ALEN);
1859         else
1860                 memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN);
1861         wireless_send_event(priv->net_dev, SIOCGIWAP, &wrqu, NULL);
1862 }
1863
1864 static void ipw_irq_tasklet(struct ipw_priv *priv)
1865 {
1866         u32 inta, inta_mask, handled = 0;
1867         unsigned long flags;
1868         int rc = 0;
1869
1870         spin_lock_irqsave(&priv->irq_lock, flags);
1871
1872         inta = ipw_read32(priv, IPW_INTA_RW);
1873         inta_mask = ipw_read32(priv, IPW_INTA_MASK_R);
1874         inta &= (IPW_INTA_MASK_ALL & inta_mask);
1875
1876         /* Add any cached INTA values that need to be handled */
1877         inta |= priv->isr_inta;
1878
1879         spin_unlock_irqrestore(&priv->irq_lock, flags);
1880
1881         spin_lock_irqsave(&priv->lock, flags);
1882
1883         /* handle all the justifications for the interrupt */
1884         if (inta & IPW_INTA_BIT_RX_TRANSFER) {
1885                 ipw_rx(priv);
1886                 handled |= IPW_INTA_BIT_RX_TRANSFER;
1887         }
1888
1889         if (inta & IPW_INTA_BIT_TX_CMD_QUEUE) {
1890                 IPW_DEBUG_HC("Command completed.\n");
1891                 rc = ipw_queue_tx_reclaim(priv, &priv->txq_cmd, -1);
1892                 priv->status &= ~STATUS_HCMD_ACTIVE;
1893                 wake_up_interruptible(&priv->wait_command_queue);
1894                 handled |= IPW_INTA_BIT_TX_CMD_QUEUE;
1895         }
1896
1897         if (inta & IPW_INTA_BIT_TX_QUEUE_1) {
1898                 IPW_DEBUG_TX("TX_QUEUE_1\n");
1899                 rc = ipw_queue_tx_reclaim(priv, &priv->txq[0], 0);
1900                 handled |= IPW_INTA_BIT_TX_QUEUE_1;
1901         }
1902
1903         if (inta & IPW_INTA_BIT_TX_QUEUE_2) {
1904                 IPW_DEBUG_TX("TX_QUEUE_2\n");
1905                 rc = ipw_queue_tx_reclaim(priv, &priv->txq[1], 1);
1906                 handled |= IPW_INTA_BIT_TX_QUEUE_2;
1907         }
1908
1909         if (inta & IPW_INTA_BIT_TX_QUEUE_3) {
1910                 IPW_DEBUG_TX("TX_QUEUE_3\n");
1911                 rc = ipw_queue_tx_reclaim(priv, &priv->txq[2], 2);
1912                 handled |= IPW_INTA_BIT_TX_QUEUE_3;
1913         }
1914
1915         if (inta & IPW_INTA_BIT_TX_QUEUE_4) {
1916                 IPW_DEBUG_TX("TX_QUEUE_4\n");
1917                 rc = ipw_queue_tx_reclaim(priv, &priv->txq[3], 3);
1918                 handled |= IPW_INTA_BIT_TX_QUEUE_4;
1919         }
1920
1921         if (inta & IPW_INTA_BIT_STATUS_CHANGE) {
1922                 IPW_WARNING("STATUS_CHANGE\n");
1923                 handled |= IPW_INTA_BIT_STATUS_CHANGE;
1924         }
1925
1926         if (inta & IPW_INTA_BIT_BEACON_PERIOD_EXPIRED) {
1927                 IPW_WARNING("TX_PERIOD_EXPIRED\n");
1928                 handled |= IPW_INTA_BIT_BEACON_PERIOD_EXPIRED;
1929         }
1930
1931         if (inta & IPW_INTA_BIT_SLAVE_MODE_HOST_CMD_DONE) {
1932                 IPW_WARNING("HOST_CMD_DONE\n");
1933                 handled |= IPW_INTA_BIT_SLAVE_MODE_HOST_CMD_DONE;
1934         }
1935
1936         if (inta & IPW_INTA_BIT_FW_INITIALIZATION_DONE) {
1937                 IPW_WARNING("FW_INITIALIZATION_DONE\n");
1938                 handled |= IPW_INTA_BIT_FW_INITIALIZATION_DONE;
1939         }
1940
1941         if (inta & IPW_INTA_BIT_FW_CARD_DISABLE_PHY_OFF_DONE) {
1942                 IPW_WARNING("PHY_OFF_DONE\n");
1943                 handled |= IPW_INTA_BIT_FW_CARD_DISABLE_PHY_OFF_DONE;
1944         }
1945
1946         if (inta & IPW_INTA_BIT_RF_KILL_DONE) {
1947                 IPW_DEBUG_RF_KILL("RF_KILL_DONE\n");
1948                 priv->status |= STATUS_RF_KILL_HW;
1949                 wake_up_interruptible(&priv->wait_command_queue);
1950                 priv->status &= ~(STATUS_ASSOCIATED | STATUS_ASSOCIATING);
1951                 cancel_delayed_work(&priv->request_scan);
1952                 schedule_work(&priv->link_down);
1953                 queue_delayed_work(priv->workqueue, &priv->rf_kill, 2 * HZ);
1954                 handled |= IPW_INTA_BIT_RF_KILL_DONE;
1955         }
1956
1957         if (inta & IPW_INTA_BIT_FATAL_ERROR) {
1958                 IPW_WARNING("Firmware error detected.  Restarting.\n");
1959                 if (priv->error) {
1960                         IPW_DEBUG_FW("Sysfs 'error' log already exists.\n");
1961 #ifdef CONFIG_IPW2200_DEBUG
1962                         if (ipw_debug_level & IPW_DL_FW_ERRORS) {
1963                                 struct ipw_fw_error *error =
1964                                     ipw_alloc_error_log(priv);
1965                                 ipw_dump_error_log(priv, error);
1966                                 kfree(error);
1967                         }
1968 #endif
1969                 } else {
1970                         priv->error = ipw_alloc_error_log(priv);
1971                         if (priv->error)
1972                                 IPW_DEBUG_FW("Sysfs 'error' log captured.\n");
1973                         else
1974                                 IPW_DEBUG_FW("Error allocating sysfs 'error' "
1975                                              "log.\n");
1976 #ifdef CONFIG_IPW2200_DEBUG
1977                         if (ipw_debug_level & IPW_DL_FW_ERRORS)
1978                                 ipw_dump_error_log(priv, priv->error);
1979 #endif
1980                 }
1981
1982                 /* XXX: If hardware encryption is for WPA/WPA2,
1983                  * we have to notify the supplicant. */
1984                 if (priv->ieee->sec.encrypt) {
1985                         priv->status &= ~STATUS_ASSOCIATED;
1986                         notify_wx_assoc_event(priv);
1987                 }
1988
1989                 /* Keep the restart process from trying to send host
1990                  * commands by clearing the INIT status bit */
1991                 priv->status &= ~STATUS_INIT;
1992
1993                 /* Cancel currently queued command. */
1994                 priv->status &= ~STATUS_HCMD_ACTIVE;
1995                 wake_up_interruptible(&priv->wait_command_queue);
1996
1997                 queue_work(priv->workqueue, &priv->adapter_restart);
1998                 handled |= IPW_INTA_BIT_FATAL_ERROR;
1999         }
2000
2001         if (inta & IPW_INTA_BIT_PARITY_ERROR) {
2002                 IPW_ERROR("Parity error\n");
2003                 handled |= IPW_INTA_BIT_PARITY_ERROR;
2004         }
2005
2006         if (handled != inta) {
2007                 IPW_ERROR("Unhandled INTA bits 0x%08x\n", inta & ~handled);
2008         }
2009
2010         spin_unlock_irqrestore(&priv->lock, flags);
2011
2012         /* enable all interrupts */
2013         ipw_enable_interrupts(priv);
2014 }
2015
2016 #define IPW_CMD(x) case IPW_CMD_ ## x : return #x
2017 static char *get_cmd_string(u8 cmd)
2018 {
2019         switch (cmd) {
2020                 IPW_CMD(HOST_COMPLETE);
2021                 IPW_CMD(POWER_DOWN);
2022                 IPW_CMD(SYSTEM_CONFIG);
2023                 IPW_CMD(MULTICAST_ADDRESS);
2024                 IPW_CMD(SSID);
2025                 IPW_CMD(ADAPTER_ADDRESS);
2026                 IPW_CMD(PORT_TYPE);
2027                 IPW_CMD(RTS_THRESHOLD);
2028                 IPW_CMD(FRAG_THRESHOLD);
2029                 IPW_CMD(POWER_MODE);
2030                 IPW_CMD(WEP_KEY);
2031                 IPW_CMD(TGI_TX_KEY);
2032                 IPW_CMD(SCAN_REQUEST);
2033                 IPW_CMD(SCAN_REQUEST_EXT);
2034                 IPW_CMD(ASSOCIATE);
2035                 IPW_CMD(SUPPORTED_RATES);
2036                 IPW_CMD(SCAN_ABORT);
2037                 IPW_CMD(TX_FLUSH);
2038                 IPW_CMD(QOS_PARAMETERS);
2039                 IPW_CMD(DINO_CONFIG);
2040                 IPW_CMD(RSN_CAPABILITIES);
2041                 IPW_CMD(RX_KEY);
2042                 IPW_CMD(CARD_DISABLE);
2043                 IPW_CMD(SEED_NUMBER);
2044                 IPW_CMD(TX_POWER);
2045                 IPW_CMD(COUNTRY_INFO);
2046                 IPW_CMD(AIRONET_INFO);
2047                 IPW_CMD(AP_TX_POWER);
2048                 IPW_CMD(CCKM_INFO);
2049                 IPW_CMD(CCX_VER_INFO);
2050                 IPW_CMD(SET_CALIBRATION);
2051                 IPW_CMD(SENSITIVITY_CALIB);
2052                 IPW_CMD(RETRY_LIMIT);
2053                 IPW_CMD(IPW_PRE_POWER_DOWN);
2054                 IPW_CMD(VAP_BEACON_TEMPLATE);
2055                 IPW_CMD(VAP_DTIM_PERIOD);
2056                 IPW_CMD(EXT_SUPPORTED_RATES);
2057                 IPW_CMD(VAP_LOCAL_TX_PWR_CONSTRAINT);
2058                 IPW_CMD(VAP_QUIET_INTERVALS);
2059                 IPW_CMD(VAP_CHANNEL_SWITCH);
2060                 IPW_CMD(VAP_MANDATORY_CHANNELS);
2061                 IPW_CMD(VAP_CELL_PWR_LIMIT);
2062                 IPW_CMD(VAP_CF_PARAM_SET);
2063                 IPW_CMD(VAP_SET_BEACONING_STATE);
2064                 IPW_CMD(MEASUREMENT);
2065                 IPW_CMD(POWER_CAPABILITY);
2066                 IPW_CMD(SUPPORTED_CHANNELS);
2067                 IPW_CMD(TPC_REPORT);
2068                 IPW_CMD(WME_INFO);
2069                 IPW_CMD(PRODUCTION_COMMAND);
2070         default:
2071                 return "UNKNOWN";
2072         }
2073 }
2074
2075 #define HOST_COMPLETE_TIMEOUT HZ
2076
2077 static int __ipw_send_cmd(struct ipw_priv *priv, struct host_cmd *cmd)
2078 {
2079         int rc = 0;
2080         unsigned long flags;
2081
2082         spin_lock_irqsave(&priv->lock, flags);
2083         if (priv->status & STATUS_HCMD_ACTIVE) {
2084                 IPW_ERROR("Failed to send %s: Already sending a command.\n",
2085                           get_cmd_string(cmd->cmd));
2086                 spin_unlock_irqrestore(&priv->lock, flags);
2087                 return -EAGAIN;
2088         }
2089
2090         priv->status |= STATUS_HCMD_ACTIVE;
2091
2092         if (priv->cmdlog) {
2093                 priv->cmdlog[priv->cmdlog_pos].jiffies = jiffies;
2094                 priv->cmdlog[priv->cmdlog_pos].cmd.cmd = cmd->cmd;
2095                 priv->cmdlog[priv->cmdlog_pos].cmd.len = cmd->len;
2096                 memcpy(priv->cmdlog[priv->cmdlog_pos].cmd.param, cmd->param,
2097                        cmd->len);
2098                 priv->cmdlog[priv->cmdlog_pos].retcode = -1;
2099         }
2100
2101         IPW_DEBUG_HC("%s command (#%d) %d bytes: 0x%08X\n",
2102                      get_cmd_string(cmd->cmd), cmd->cmd, cmd->len,
2103                      priv->status);
2104
2105 #ifndef DEBUG_CMD_WEP_KEY
2106         if (cmd->cmd == IPW_CMD_WEP_KEY)
2107                 IPW_DEBUG_HC("WEP_KEY command masked out for secure.\n");
2108         else
2109 #endif
2110                 printk_buf(IPW_DL_HOST_COMMAND, (u8 *) cmd->param, cmd->len);
2111
2112         rc = ipw_queue_tx_hcmd(priv, cmd->cmd, cmd->param, cmd->len, 0);
2113         if (rc) {
2114                 priv->status &= ~STATUS_HCMD_ACTIVE;
2115                 IPW_ERROR("Failed to send %s: Reason %d\n",
2116                           get_cmd_string(cmd->cmd), rc);
2117                 spin_unlock_irqrestore(&priv->lock, flags);
2118                 goto exit;
2119         }
2120         spin_unlock_irqrestore(&priv->lock, flags);
2121
2122         rc = wait_event_interruptible_timeout(priv->wait_command_queue,
2123                                               !(priv->
2124                                                 status & STATUS_HCMD_ACTIVE),
2125                                               HOST_COMPLETE_TIMEOUT);
2126         if (rc == 0) {
2127                 spin_lock_irqsave(&priv->lock, flags);
2128                 if (priv->status & STATUS_HCMD_ACTIVE) {
2129                         IPW_ERROR("Failed to send %s: Command timed out.\n",
2130                                   get_cmd_string(cmd->cmd));
2131                         priv->status &= ~STATUS_HCMD_ACTIVE;
2132                         spin_unlock_irqrestore(&priv->lock, flags);
2133                         rc = -EIO;
2134                         goto exit;
2135                 }
2136                 spin_unlock_irqrestore(&priv->lock, flags);
2137         } else
2138                 rc = 0;
2139
2140         if (priv->status & STATUS_RF_KILL_HW) {
2141                 IPW_ERROR("Failed to send %s: Aborted due to RF kill switch.\n",
2142                           get_cmd_string(cmd->cmd));
2143                 rc = -EIO;
2144                 goto exit;
2145         }
2146
2147       exit:
2148         if (priv->cmdlog) {
2149                 priv->cmdlog[priv->cmdlog_pos++].retcode = rc;
2150                 priv->cmdlog_pos %= priv->cmdlog_len;
2151         }
2152         return rc;
2153 }
2154
2155 static int ipw_send_cmd_simple(struct ipw_priv *priv, u8 command)
2156 {
2157         struct host_cmd cmd = {
2158                 .cmd = command,
2159         };
2160
2161         return __ipw_send_cmd(priv, &cmd);
2162 }
2163
2164 static int ipw_send_cmd_pdu(struct ipw_priv *priv, u8 command, u8 len,
2165                             void *data)
2166 {
2167         struct host_cmd cmd = {
2168                 .cmd = command,
2169                 .len = len,
2170                 .param = data,
2171         };
2172
2173         return __ipw_send_cmd(priv, &cmd);
2174 }
2175
2176 static int ipw_send_host_complete(struct ipw_priv *priv)
2177 {
2178         if (!priv) {
2179                 IPW_ERROR("Invalid args\n");
2180                 return -1;
2181         }
2182
2183         return ipw_send_cmd_simple(priv, IPW_CMD_HOST_COMPLETE);
2184 }
2185
2186 static int ipw_send_system_config(struct ipw_priv *priv)
2187 {
2188         return ipw_send_cmd_pdu(priv, IPW_CMD_SYSTEM_CONFIG,
2189                                 sizeof(priv->sys_config),
2190                                 &priv->sys_config);
2191 }
2192
2193 static int ipw_send_ssid(struct ipw_priv *priv, u8 * ssid, int len)
2194 {
2195         if (!priv || !ssid) {
2196                 IPW_ERROR("Invalid args\n");
2197                 return -1;
2198         }
2199
2200         return ipw_send_cmd_pdu(priv, IPW_CMD_SSID, min(len, IW_ESSID_MAX_SIZE),
2201                                 ssid);
2202 }
2203
2204 static int ipw_send_adapter_address(struct ipw_priv *priv, u8 * mac)
2205 {
2206         if (!priv || !mac) {
2207                 IPW_ERROR("Invalid args\n");
2208                 return -1;
2209         }
2210
2211         IPW_DEBUG_INFO("%s: Setting MAC to " MAC_FMT "\n",
2212                        priv->net_dev->name, MAC_ARG(mac));
2213
2214         return ipw_send_cmd_pdu(priv, IPW_CMD_ADAPTER_ADDRESS, ETH_ALEN, mac);
2215 }
2216
2217 /*
2218  * NOTE: This must be executed from our workqueue as it results in udelay
2219  * being called which may corrupt the keyboard if executed on default
2220  * workqueue
2221  */
2222 static void ipw_adapter_restart(void *adapter)
2223 {
2224         struct ipw_priv *priv = adapter;
2225
2226         if (priv->status & STATUS_RF_KILL_MASK)
2227                 return;
2228
2229         ipw_down(priv);
2230
2231         if (priv->assoc_network &&
2232             (priv->assoc_network->capability & WLAN_CAPABILITY_IBSS))
2233                 ipw_remove_current_network(priv);
2234
2235         if (ipw_up(priv)) {
2236                 IPW_ERROR("Failed to up device\n");
2237                 return;
2238         }
2239 }
2240
2241 static void ipw_bg_adapter_restart(void *data)
2242 {
2243         struct ipw_priv *priv = data;
2244         mutex_lock(&priv->mutex);
2245         ipw_adapter_restart(data);
2246         mutex_unlock(&priv->mutex);
2247 }
2248
2249 #define IPW_SCAN_CHECK_WATCHDOG (5 * HZ)
2250
2251 static void ipw_scan_check(void *data)
2252 {
2253         struct ipw_priv *priv = data;
2254         if (priv->status & (STATUS_SCANNING | STATUS_SCAN_ABORTING)) {
2255                 IPW_DEBUG_SCAN("Scan completion watchdog resetting "
2256                                "adapter after (%dms).\n",
2257                                jiffies_to_msecs(IPW_SCAN_CHECK_WATCHDOG));
2258                 queue_work(priv->workqueue, &priv->adapter_restart);
2259         }
2260 }
2261
2262 static void ipw_bg_scan_check(void *data)
2263 {
2264         struct ipw_priv *priv = data;
2265         mutex_lock(&priv->mutex);
2266         ipw_scan_check(data);
2267         mutex_unlock(&priv->mutex);
2268 }
2269
2270 static int ipw_send_scan_request_ext(struct ipw_priv *priv,
2271                                      struct ipw_scan_request_ext *request)
2272 {
2273         return ipw_send_cmd_pdu(priv, IPW_CMD_SCAN_REQUEST_EXT,
2274                                 sizeof(*request), request);
2275 }
2276
2277 static int ipw_send_scan_abort(struct ipw_priv *priv)
2278 {
2279         if (!priv) {
2280                 IPW_ERROR("Invalid args\n");
2281                 return -1;
2282         }
2283
2284         return ipw_send_cmd_simple(priv, IPW_CMD_SCAN_ABORT);
2285 }
2286
2287 static int ipw_set_sensitivity(struct ipw_priv *priv, u16 sens)
2288 {
2289         struct ipw_sensitivity_calib calib = {
2290                 .beacon_rssi_raw = sens,
2291         };
2292
2293         return ipw_send_cmd_pdu(priv, IPW_CMD_SENSITIVITY_CALIB, sizeof(calib),
2294                                 &calib);
2295 }
2296
2297 static int ipw_send_associate(struct ipw_priv *priv,
2298                               struct ipw_associate *associate)
2299 {
2300         struct ipw_associate tmp_associate;
2301
2302         if (!priv || !associate) {
2303                 IPW_ERROR("Invalid args\n");
2304                 return -1;
2305         }
2306
2307         memcpy(&tmp_associate, associate, sizeof(*associate));
2308         tmp_associate.policy_support =
2309             cpu_to_le16(tmp_associate.policy_support);
2310         tmp_associate.assoc_tsf_msw = cpu_to_le32(tmp_associate.assoc_tsf_msw);
2311         tmp_associate.assoc_tsf_lsw = cpu_to_le32(tmp_associate.assoc_tsf_lsw);
2312         tmp_associate.capability = cpu_to_le16(tmp_associate.capability);
2313         tmp_associate.listen_interval =
2314             cpu_to_le16(tmp_associate.listen_interval);
2315         tmp_associate.beacon_interval =
2316             cpu_to_le16(tmp_associate.beacon_interval);
2317         tmp_associate.atim_window = cpu_to_le16(tmp_associate.atim_window);
2318
2319         return ipw_send_cmd_pdu(priv, IPW_CMD_ASSOCIATE, sizeof(tmp_associate),
2320                                 &tmp_associate);
2321 }
2322
2323 static int ipw_send_supported_rates(struct ipw_priv *priv,
2324                                     struct ipw_supported_rates *rates)
2325 {
2326         if (!priv || !rates) {
2327                 IPW_ERROR("Invalid args\n");
2328                 return -1;
2329         }
2330
2331         return ipw_send_cmd_pdu(priv, IPW_CMD_SUPPORTED_RATES, sizeof(*rates),
2332                                 rates);
2333 }
2334
2335 static int ipw_set_random_seed(struct ipw_priv *priv)
2336 {
2337         u32 val;
2338
2339         if (!priv) {
2340                 IPW_ERROR("Invalid args\n");
2341                 return -1;
2342         }
2343
2344         get_random_bytes(&val, sizeof(val));
2345
2346         return ipw_send_cmd_pdu(priv, IPW_CMD_SEED_NUMBER, sizeof(val), &val);
2347 }
2348
2349 static int ipw_send_card_disable(struct ipw_priv *priv, u32 phy_off)
2350 {
2351         if (!priv) {
2352                 IPW_ERROR("Invalid args\n");
2353                 return -1;
2354         }
2355
2356         return ipw_send_cmd_pdu(priv, IPW_CMD_CARD_DISABLE, sizeof(phy_off),
2357                                 &phy_off);
2358 }
2359
2360 static int ipw_send_tx_power(struct ipw_priv *priv, struct ipw_tx_power *power)
2361 {
2362         if (!priv || !power) {
2363                 IPW_ERROR("Invalid args\n");
2364                 return -1;
2365         }
2366
2367         return ipw_send_cmd_pdu(priv, IPW_CMD_TX_POWER, sizeof(*power), power);
2368 }
2369
2370 static int ipw_set_tx_power(struct ipw_priv *priv)
2371 {
2372         const struct ieee80211_geo *geo = ieee80211_get_geo(priv->ieee);
2373         struct ipw_tx_power tx_power;
2374         s8 max_power;
2375         int i;
2376
2377         memset(&tx_power, 0, sizeof(tx_power));
2378
2379         /* configure device for 'G' band */
2380         tx_power.ieee_mode = IPW_G_MODE;
2381         tx_power.num_channels = geo->bg_channels;
2382         for (i = 0; i < geo->bg_channels; i++) {
2383                 max_power = geo->bg[i].max_power;
2384                 tx_power.channels_tx_power[i].channel_number =
2385                     geo->bg[i].channel;
2386                 tx_power.channels_tx_power[i].tx_power = max_power ?
2387                     min(max_power, priv->tx_power) : priv->tx_power;
2388         }
2389         if (ipw_send_tx_power(priv, &tx_power))
2390                 return -EIO;
2391
2392         /* configure device to also handle 'B' band */
2393         tx_power.ieee_mode = IPW_B_MODE;
2394         if (ipw_send_tx_power(priv, &tx_power))
2395                 return -EIO;
2396
2397         /* configure device to also handle 'A' band */
2398         if (priv->ieee->abg_true) {
2399                 tx_power.ieee_mode = IPW_A_MODE;
2400                 tx_power.num_channels = geo->a_channels;
2401                 for (i = 0; i < tx_power.num_channels; i++) {
2402                         max_power = geo->a[i].max_power;
2403                         tx_power.channels_tx_power[i].channel_number =
2404                             geo->a[i].channel;
2405                         tx_power.channels_tx_power[i].tx_power = max_power ?
2406                             min(max_power, priv->tx_power) : priv->tx_power;
2407                 }
2408                 if (ipw_send_tx_power(priv, &tx_power))
2409                         return -EIO;
2410         }
2411         return 0;
2412 }
2413
2414 static int ipw_send_rts_threshold(struct ipw_priv *priv, u16 rts)
2415 {
2416         struct ipw_rts_threshold rts_threshold = {
2417                 .rts_threshold = rts,
2418         };
2419
2420         if (!priv) {
2421                 IPW_ERROR("Invalid args\n");
2422                 return -1;
2423         }
2424
2425         return ipw_send_cmd_pdu(priv, IPW_CMD_RTS_THRESHOLD,
2426                                 sizeof(rts_threshold), &rts_threshold);
2427 }
2428
2429 static int ipw_send_frag_threshold(struct ipw_priv *priv, u16 frag)
2430 {
2431         struct ipw_frag_threshold frag_threshold = {
2432                 .frag_threshold = frag,
2433         };
2434
2435         if (!priv) {
2436                 IPW_ERROR("Invalid args\n");
2437                 return -1;
2438         }
2439
2440         return ipw_send_cmd_pdu(priv, IPW_CMD_FRAG_THRESHOLD,
2441                                 sizeof(frag_threshold), &frag_threshold);
2442 }
2443
2444 static int ipw_send_power_mode(struct ipw_priv *priv, u32 mode)
2445 {
2446         u32 param;
2447
2448         if (!priv) {
2449                 IPW_ERROR("Invalid args\n");
2450                 return -1;
2451         }
2452
2453         /* If on battery, set to 3, if AC set to CAM, else user
2454          * level */
2455         switch (mode) {
2456         case IPW_POWER_BATTERY:
2457                 param = IPW_POWER_INDEX_3;
2458                 break;
2459         case IPW_POWER_AC:
2460                 param = IPW_POWER_MODE_CAM;
2461                 break;
2462         default:
2463                 param = mode;
2464                 break;
2465         }
2466
2467         return ipw_send_cmd_pdu(priv, IPW_CMD_POWER_MODE, sizeof(param),
2468                                 &param);
2469 }
2470
2471 static int ipw_send_retry_limit(struct ipw_priv *priv, u8 slimit, u8 llimit)
2472 {
2473         struct ipw_retry_limit retry_limit = {
2474                 .short_retry_limit = slimit,
2475                 .long_retry_limit = llimit
2476         };
2477
2478         if (!priv) {
2479                 IPW_ERROR("Invalid args\n");
2480                 return -1;
2481         }
2482
2483         return ipw_send_cmd_pdu(priv, IPW_CMD_RETRY_LIMIT, sizeof(retry_limit),
2484                                 &retry_limit);
2485 }
2486
2487 /*
2488  * The IPW device contains a Microwire compatible EEPROM that stores
2489  * various data like the MAC address.  Usually the firmware has exclusive
2490  * access to the eeprom, but during device initialization (before the
2491  * device driver has sent the HostComplete command to the firmware) the
2492  * device driver has read access to the EEPROM by way of indirect addressing
2493  * through a couple of memory mapped registers.
2494  *
2495  * The following is a simplified implementation for pulling data out of the
2496  * the eeprom, along with some helper functions to find information in
2497  * the per device private data's copy of the eeprom.
2498  *
2499  * NOTE: To better understand how these functions work (i.e what is a chip
2500  *       select and why do have to keep driving the eeprom clock?), read
2501  *       just about any data sheet for a Microwire compatible EEPROM.
2502  */
2503
2504 /* write a 32 bit value into the indirect accessor register */
2505 static inline void eeprom_write_reg(struct ipw_priv *p, u32 data)
2506 {
2507         ipw_write_reg32(p, FW_MEM_REG_EEPROM_ACCESS, data);
2508
2509         /* the eeprom requires some time to complete the operation */
2510         udelay(p->eeprom_delay);
2511
2512         return;
2513 }
2514
2515 /* perform a chip select operation */
2516 static void eeprom_cs(struct ipw_priv *priv)
2517 {
2518         eeprom_write_reg(priv, 0);
2519         eeprom_write_reg(priv, EEPROM_BIT_CS);
2520         eeprom_write_reg(priv, EEPROM_BIT_CS | EEPROM_BIT_SK);
2521         eeprom_write_reg(priv, EEPROM_BIT_CS);
2522 }
2523
2524 /* perform a chip select operation */
2525 static void eeprom_disable_cs(struct ipw_priv *priv)
2526 {
2527         eeprom_write_reg(priv, EEPROM_BIT_CS);
2528         eeprom_write_reg(priv, 0);
2529         eeprom_write_reg(priv, EEPROM_BIT_SK);
2530 }
2531
2532 /* push a single bit down to the eeprom */
2533 static inline void eeprom_write_bit(struct ipw_priv *p, u8 bit)
2534 {
2535         int d = (bit ? EEPROM_BIT_DI : 0);
2536         eeprom_write_reg(p, EEPROM_BIT_CS | d);
2537         eeprom_write_reg(p, EEPROM_BIT_CS | d | EEPROM_BIT_SK);
2538 }
2539
2540 /* push an opcode followed by an address down to the eeprom */
2541 static void eeprom_op(struct ipw_priv *priv, u8 op, u8 addr)
2542 {
2543         int i;
2544
2545         eeprom_cs(priv);
2546         eeprom_write_bit(priv, 1);
2547         eeprom_write_bit(priv, op & 2);
2548         eeprom_write_bit(priv, op & 1);
2549         for (i = 7; i >= 0; i--) {
2550                 eeprom_write_bit(priv, addr & (1 << i));
2551         }
2552 }
2553
2554 /* pull 16 bits off the eeprom, one bit at a time */
2555 static u16 eeprom_read_u16(struct ipw_priv *priv, u8 addr)
2556 {
2557         int i;
2558         u16 r = 0;
2559
2560         /* Send READ Opcode */
2561         eeprom_op(priv, EEPROM_CMD_READ, addr);
2562
2563         /* Send dummy bit */
2564         eeprom_write_reg(priv, EEPROM_BIT_CS);
2565
2566         /* Read the byte off the eeprom one bit at a time */
2567         for (i = 0; i < 16; i++) {
2568                 u32 data = 0;
2569                 eeprom_write_reg(priv, EEPROM_BIT_CS | EEPROM_BIT_SK);
2570                 eeprom_write_reg(priv, EEPROM_BIT_CS);
2571                 data = ipw_read_reg32(priv, FW_MEM_REG_EEPROM_ACCESS);
2572                 r = (r << 1) | ((data & EEPROM_BIT_DO) ? 1 : 0);
2573         }
2574
2575         /* Send another dummy bit */
2576         eeprom_write_reg(priv, 0);
2577         eeprom_disable_cs(priv);
2578
2579         return r;
2580 }
2581
2582 /* helper function for pulling the mac address out of the private */
2583 /* data's copy of the eeprom data                                 */
2584 static void eeprom_parse_mac(struct ipw_priv *priv, u8 * mac)
2585 {
2586         memcpy(mac, &priv->eeprom[EEPROM_MAC_ADDRESS], 6);
2587 }
2588
2589 /*
2590  * Either the device driver (i.e. the host) or the firmware can
2591  * load eeprom data into the designated region in SRAM.  If neither
2592  * happens then the FW will shutdown with a fatal error.
2593  *
2594  * In order to signal the FW to load the EEPROM, the EEPROM_LOAD_DISABLE
2595  * bit needs region of shared SRAM needs to be non-zero.
2596  */
2597 static void ipw_eeprom_init_sram(struct ipw_priv *priv)
2598 {
2599         int i;
2600         u16 *eeprom = (u16 *) priv->eeprom;
2601
2602         IPW_DEBUG_TRACE(">>\n");
2603
2604         /* read entire contents of eeprom into private buffer */
2605         for (i = 0; i < 128; i++)
2606                 eeprom[i] = le16_to_cpu(eeprom_read_u16(priv, (u8) i));
2607
2608         /*
2609            If the data looks correct, then copy it to our private
2610            copy.  Otherwise let the firmware know to perform the operation
2611            on its own.
2612          */
2613         if (priv->eeprom[EEPROM_VERSION] != 0) {
2614                 IPW_DEBUG_INFO("Writing EEPROM data into SRAM\n");
2615
2616                 /* write the eeprom data to sram */
2617                 for (i = 0; i < IPW_EEPROM_IMAGE_SIZE; i++)
2618                         ipw_write8(priv, IPW_EEPROM_DATA + i, priv->eeprom[i]);
2619
2620                 /* Do not load eeprom data on fatal error or suspend */
2621                 ipw_write32(priv, IPW_EEPROM_LOAD_DISABLE, 0);
2622         } else {
2623                 IPW_DEBUG_INFO("Enabling FW initializationg of SRAM\n");
2624
2625                 /* Load eeprom data on fatal error or suspend */
2626                 ipw_write32(priv, IPW_EEPROM_LOAD_DISABLE, 1);
2627         }
2628
2629         IPW_DEBUG_TRACE("<<\n");
2630 }
2631
2632 static void ipw_zero_memory(struct ipw_priv *priv, u32 start, u32 count)
2633 {
2634         count >>= 2;
2635         if (!count)
2636                 return;
2637         _ipw_write32(priv, IPW_AUTOINC_ADDR, start);
2638         while (count--)
2639                 _ipw_write32(priv, IPW_AUTOINC_DATA, 0);
2640 }
2641
2642 static inline void ipw_fw_dma_reset_command_blocks(struct ipw_priv *priv)
2643 {
2644         ipw_zero_memory(priv, IPW_SHARED_SRAM_DMA_CONTROL,
2645                         CB_NUMBER_OF_ELEMENTS_SMALL *
2646                         sizeof(struct command_block));
2647 }
2648
2649 static int ipw_fw_dma_enable(struct ipw_priv *priv)
2650 {                               /* start dma engine but no transfers yet */
2651
2652         IPW_DEBUG_FW(">> : \n");
2653
2654         /* Start the dma */
2655         ipw_fw_dma_reset_command_blocks(priv);
2656
2657         /* Write CB base address */
2658         ipw_write_reg32(priv, IPW_DMA_I_CB_BASE, IPW_SHARED_SRAM_DMA_CONTROL);
2659
2660         IPW_DEBUG_FW("<< : \n");
2661         return 0;
2662 }
2663
2664 static void ipw_fw_dma_abort(struct ipw_priv *priv)
2665 {
2666         u32 control = 0;
2667
2668         IPW_DEBUG_FW(">> :\n");
2669
2670         //set the Stop and Abort bit
2671         control = DMA_CONTROL_SMALL_CB_CONST_VALUE | DMA_CB_STOP_AND_ABORT;
2672         ipw_write_reg32(priv, IPW_DMA_I_DMA_CONTROL, control);
2673         priv->sram_desc.last_cb_index = 0;
2674
2675         IPW_DEBUG_FW("<< \n");
2676 }
2677
2678 static int ipw_fw_dma_write_command_block(struct ipw_priv *priv, int index,
2679                                           struct command_block *cb)
2680 {
2681         u32 address =
2682             IPW_SHARED_SRAM_DMA_CONTROL +
2683             (sizeof(struct command_block) * index);
2684         IPW_DEBUG_FW(">> :\n");
2685
2686         ipw_write_indirect(priv, address, (u8 *) cb,
2687                            (int)sizeof(struct command_block));
2688
2689         IPW_DEBUG_FW("<< :\n");
2690         return 0;
2691
2692 }
2693
2694 static int ipw_fw_dma_kick(struct ipw_priv *priv)
2695 {
2696         u32 control = 0;
2697         u32 index = 0;
2698
2699         IPW_DEBUG_FW(">> :\n");
2700
2701         for (index = 0; index < priv->sram_desc.last_cb_index; index++)
2702                 ipw_fw_dma_write_command_block(priv, index,
2703                                                &priv->sram_desc.cb_list[index]);
2704
2705         /* Enable the DMA in the CSR register */
2706         ipw_clear_bit(priv, IPW_RESET_REG,
2707                       IPW_RESET_REG_MASTER_DISABLED |
2708                       IPW_RESET_REG_STOP_MASTER);
2709
2710         /* Set the Start bit. */
2711         control = DMA_CONTROL_SMALL_CB_CONST_VALUE | DMA_CB_START;
2712         ipw_write_reg32(priv, IPW_DMA_I_DMA_CONTROL, control);
2713
2714         IPW_DEBUG_FW("<< :\n");
2715         return 0;
2716 }
2717
2718 static void ipw_fw_dma_dump_command_block(struct ipw_priv *priv)
2719 {
2720         u32 address;
2721         u32 register_value = 0;
2722         u32 cb_fields_address = 0;
2723
2724         IPW_DEBUG_FW(">> :\n");
2725         address = ipw_read_reg32(priv, IPW_DMA_I_CURRENT_CB);
2726         IPW_DEBUG_FW_INFO("Current CB is 0x%x \n", address);
2727
2728         /* Read the DMA Controlor register */
2729         register_value = ipw_read_reg32(priv, IPW_DMA_I_DMA_CONTROL);
2730         IPW_DEBUG_FW_INFO("IPW_DMA_I_DMA_CONTROL is 0x%x \n", register_value);
2731
2732         /* Print the CB values */
2733         cb_fields_address = address;
2734         register_value = ipw_read_reg32(priv, cb_fields_address);
2735         IPW_DEBUG_FW_INFO("Current CB ControlField is 0x%x \n", register_value);
2736
2737         cb_fields_address += sizeof(u32);
2738         register_value = ipw_read_reg32(priv, cb_fields_address);
2739         IPW_DEBUG_FW_INFO("Current CB Source Field is 0x%x \n", register_value);
2740
2741         cb_fields_address += sizeof(u32);
2742         register_value = ipw_read_reg32(priv, cb_fields_address);
2743         IPW_DEBUG_FW_INFO("Current CB Destination Field is 0x%x \n",
2744                           register_value);
2745
2746         cb_fields_address += sizeof(u32);
2747         register_value = ipw_read_reg32(priv, cb_fields_address);
2748         IPW_DEBUG_FW_INFO("Current CB Status Field is 0x%x \n", register_value);
2749
2750         IPW_DEBUG_FW(">> :\n");
2751 }
2752
2753 static int ipw_fw_dma_command_block_index(struct ipw_priv *priv)
2754 {
2755         u32 current_cb_address = 0;
2756         u32 current_cb_index = 0;
2757
2758         IPW_DEBUG_FW("<< :\n");
2759         current_cb_address = ipw_read_reg32(priv, IPW_DMA_I_CURRENT_CB);
2760
2761         current_cb_index = (current_cb_address - IPW_SHARED_SRAM_DMA_CONTROL) /
2762             sizeof(struct command_block);
2763
2764         IPW_DEBUG_FW_INFO("Current CB index 0x%x address = 0x%X \n",
2765                           current_cb_index, current_cb_address);
2766
2767         IPW_DEBUG_FW(">> :\n");
2768         return current_cb_index;
2769
2770 }
2771
2772 static int ipw_fw_dma_add_command_block(struct ipw_priv *priv,
2773                                         u32 src_address,
2774                                         u32 dest_address,
2775                                         u32 length,
2776                                         int interrupt_enabled, int is_last)
2777 {
2778
2779         u32 control = CB_VALID | CB_SRC_LE | CB_DEST_LE | CB_SRC_AUTOINC |
2780             CB_SRC_IO_GATED | CB_DEST_AUTOINC | CB_SRC_SIZE_LONG |
2781             CB_DEST_SIZE_LONG;
2782         struct command_block *cb;
2783         u32 last_cb_element = 0;
2784
2785         IPW_DEBUG_FW_INFO("src_address=0x%x dest_address=0x%x length=0x%x\n",
2786                           src_address, dest_address, length);
2787
2788         if (priv->sram_desc.last_cb_index >= CB_NUMBER_OF_ELEMENTS_SMALL)
2789                 return -1;
2790
2791         last_cb_element = priv->sram_desc.last_cb_index;
2792         cb = &priv->sram_desc.cb_list[last_cb_element];
2793         priv->sram_desc.last_cb_index++;
2794
2795         /* Calculate the new CB control word */
2796         if (interrupt_enabled)
2797                 control |= CB_INT_ENABLED;
2798
2799         if (is_last)
2800                 control |= CB_LAST_VALID;
2801
2802         control |= length;
2803
2804         /* Calculate the CB Element's checksum value */
2805         cb->status = control ^ src_address ^ dest_address;
2806
2807         /* Copy the Source and Destination addresses */
2808         cb->dest_addr = dest_address;
2809         cb->source_addr = src_address;
2810
2811         /* Copy the Control Word last */
2812         cb->control = control;
2813
2814         return 0;
2815 }
2816
2817 static int ipw_fw_dma_add_buffer(struct ipw_priv *priv,
2818                                  u32 src_phys, u32 dest_address, u32 length)
2819 {
2820         u32 bytes_left = length;
2821         u32 src_offset = 0;
2822         u32 dest_offset = 0;
2823         int status = 0;
2824         IPW_DEBUG_FW(">> \n");
2825         IPW_DEBUG_FW_INFO("src_phys=0x%x dest_address=0x%x length=0x%x\n",
2826                           src_phys, dest_address, length);
2827         while (bytes_left > CB_MAX_LENGTH) {
2828                 status = ipw_fw_dma_add_command_block(priv,
2829                                                       src_phys + src_offset,
2830                                                       dest_address +
2831                                                       dest_offset,
2832                                                       CB_MAX_LENGTH, 0, 0);
2833                 if (status) {
2834                         IPW_DEBUG_FW_INFO(": Failed\n");
2835                         return -1;
2836                 } else
2837                         IPW_DEBUG_FW_INFO(": Added new cb\n");
2838
2839                 src_offset += CB_MAX_LENGTH;
2840                 dest_offset += CB_MAX_LENGTH;
2841                 bytes_left -= CB_MAX_LENGTH;
2842         }
2843
2844         /* add the buffer tail */
2845         if (bytes_left > 0) {
2846                 status =
2847                     ipw_fw_dma_add_command_block(priv, src_phys + src_offset,
2848                                                  dest_address + dest_offset,
2849                                                  bytes_left, 0, 0);
2850                 if (status) {
2851                         IPW_DEBUG_FW_INFO(": Failed on the buffer tail\n");
2852                         return -1;
2853                 } else
2854                         IPW_DEBUG_FW_INFO
2855                             (": Adding new cb - the buffer tail\n");
2856         }
2857
2858         IPW_DEBUG_FW("<< \n");
2859         return 0;
2860 }
2861
2862 static int ipw_fw_dma_wait(struct ipw_priv *priv)
2863 {
2864         u32 current_index = 0, previous_index;
2865         u32 watchdog = 0;
2866
2867         IPW_DEBUG_FW(">> : \n");
2868
2869         current_index = ipw_fw_dma_command_block_index(priv);
2870         IPW_DEBUG_FW_INFO("sram_desc.last_cb_index:0x%08X\n",
2871                           (int)priv->sram_desc.last_cb_index);
2872
2873         while (current_index < priv->sram_desc.last_cb_index) {
2874                 udelay(50);
2875                 previous_index = current_index;
2876                 current_index = ipw_fw_dma_command_block_index(priv);
2877
2878                 if (previous_index < current_index) {
2879                         watchdog = 0;
2880                         continue;
2881                 }
2882                 if (++watchdog > 400) {
2883                         IPW_DEBUG_FW_INFO("Timeout\n");
2884                         ipw_fw_dma_dump_command_block(priv);
2885                         ipw_fw_dma_abort(priv);
2886                         return -1;
2887                 }
2888         }
2889
2890         ipw_fw_dma_abort(priv);
2891
2892         /*Disable the DMA in the CSR register */
2893         ipw_set_bit(priv, IPW_RESET_REG,
2894                     IPW_RESET_REG_MASTER_DISABLED | IPW_RESET_REG_STOP_MASTER);
2895
2896         IPW_DEBUG_FW("<< dmaWaitSync \n");
2897         return 0;
2898 }
2899
2900 static void ipw_remove_current_network(struct ipw_priv *priv)
2901 {
2902         struct list_head *element, *safe;
2903         struct ieee80211_network *network = NULL;
2904         unsigned long flags;
2905
2906         spin_lock_irqsave(&priv->ieee->lock, flags);
2907         list_for_each_safe(element, safe, &priv->ieee->network_list) {
2908                 network = list_entry(element, struct ieee80211_network, list);
2909                 if (!memcmp(network->bssid, priv->bssid, ETH_ALEN)) {
2910                         list_del(element);
2911                         list_add_tail(&network->list,
2912                                       &priv->ieee->network_free_list);
2913                 }
2914         }
2915         spin_unlock_irqrestore(&priv->ieee->lock, flags);
2916 }
2917
2918 /**
2919  * Check that card is still alive.
2920  * Reads debug register from domain0.
2921  * If card is present, pre-defined value should
2922  * be found there.
2923  *
2924  * @param priv
2925  * @return 1 if card is present, 0 otherwise
2926  */
2927 static inline int ipw_alive(struct ipw_priv *priv)
2928 {
2929         return ipw_read32(priv, 0x90) == 0xd55555d5;
2930 }
2931
2932 /* timeout in msec, attempted in 10-msec quanta */
2933 static int ipw_poll_bit(struct ipw_priv *priv, u32 addr, u32 mask,
2934                                int timeout)
2935 {
2936         int i = 0;
2937
2938         do {
2939                 if ((ipw_read32(priv, addr) & mask) == mask)
2940                         return i;
2941                 mdelay(10);
2942                 i += 10;
2943         } while (i < timeout);
2944
2945         return -ETIME;
2946 }
2947
2948 /* These functions load the firmware and micro code for the operation of
2949  * the ipw hardware.  It assumes the buffer has all the bits for the
2950  * image and the caller is handling the memory allocation and clean up.
2951  */
2952
2953 static int ipw_stop_master(struct ipw_priv *priv)
2954 {
2955         int rc;
2956
2957         IPW_DEBUG_TRACE(">> \n");
2958         /* stop master. typical delay - 0 */
2959         ipw_set_bit(priv, IPW_RESET_REG, IPW_RESET_REG_STOP_MASTER);
2960
2961         /* timeout is in msec, polled in 10-msec quanta */
2962         rc = ipw_poll_bit(priv, IPW_RESET_REG,
2963                           IPW_RESET_REG_MASTER_DISABLED, 100);
2964         if (rc < 0) {
2965                 IPW_ERROR("wait for stop master failed after 100ms\n");
2966                 return -1;
2967         }
2968
2969         IPW_DEBUG_INFO("stop master %dms\n", rc);
2970
2971         return rc;
2972 }
2973
2974 static void ipw_arc_release(struct ipw_priv *priv)
2975 {
2976         IPW_DEBUG_TRACE(">> \n");
2977         mdelay(5);
2978
2979         ipw_clear_bit(priv, IPW_RESET_REG, CBD_RESET_REG_PRINCETON_RESET);
2980
2981         /* no one knows timing, for safety add some delay */
2982         mdelay(5);
2983 }
2984
2985 struct fw_chunk {
2986         u32 address;
2987         u32 length;
2988 };
2989
2990 static int ipw_load_ucode(struct ipw_priv *priv, u8 * data, size_t len)
2991 {
2992         int rc = 0, i, addr;
2993         u8 cr = 0;
2994         u16 *image;
2995
2996         image = (u16 *) data;
2997
2998         IPW_DEBUG_TRACE(">> \n");
2999
3000         rc = ipw_stop_master(priv);
3001
3002         if (rc < 0)
3003                 return rc;
3004
3005 //      spin_lock_irqsave(&priv->lock, flags);
3006
3007         for (addr = IPW_SHARED_LOWER_BOUND;
3008              addr < IPW_REGISTER_DOMAIN1_END; addr += 4) {
3009                 ipw_write32(priv, addr, 0);
3010         }
3011
3012         /* no ucode (yet) */
3013         memset(&priv->dino_alive, 0, sizeof(priv->dino_alive));
3014         /* destroy DMA queues */
3015         /* reset sequence */
3016
3017         ipw_write_reg32(priv, IPW_MEM_HALT_AND_RESET, IPW_BIT_HALT_RESET_ON);
3018         ipw_arc_release(priv);
3019         ipw_write_reg32(priv, IPW_MEM_HALT_AND_RESET, IPW_BIT_HALT_RESET_OFF);
3020         mdelay(1);
3021
3022         /* reset PHY */
3023         ipw_write_reg32(priv, IPW_INTERNAL_CMD_EVENT, IPW_BASEBAND_POWER_DOWN);
3024         mdelay(1);
3025
3026         ipw_write_reg32(priv, IPW_INTERNAL_CMD_EVENT, 0);
3027         mdelay(1);
3028
3029         /* enable ucode store */
3030         ipw_write_reg8(priv, IPW_BASEBAND_CONTROL_STATUS, 0x0);
3031         ipw_write_reg8(priv, IPW_BASEBAND_CONTROL_STATUS, DINO_ENABLE_CS);
3032         mdelay(1);
3033
3034         /* write ucode */
3035         /**
3036          * @bug
3037          * Do NOT set indirect address register once and then
3038          * store data to indirect data register in the loop.
3039          * It seems very reasonable, but in this case DINO do not
3040          * accept ucode. It is essential to set address each time.
3041          */
3042         /* load new ipw uCode */
3043         for (i = 0; i < len / 2; i++)
3044                 ipw_write_reg16(priv, IPW_BASEBAND_CONTROL_STORE,
3045                                 cpu_to_le16(image[i]));
3046
3047         /* enable DINO */
3048         ipw_write_reg8(priv, IPW_BASEBAND_CONTROL_STATUS, 0);
3049         ipw_write_reg8(priv, IPW_BASEBAND_CONTROL_STATUS, DINO_ENABLE_SYSTEM);
3050
3051         /* this is where the igx / win driver deveates from the VAP driver. */
3052
3053         /* wait for alive response */
3054         for (i = 0; i < 100; i++) {
3055                 /* poll for incoming data */
3056                 cr = ipw_read_reg8(priv, IPW_BASEBAND_CONTROL_STATUS);
3057                 if (cr & DINO_RXFIFO_DATA)
3058                         break;
3059                 mdelay(1);
3060         }
3061
3062         if (cr & DINO_RXFIFO_DATA) {
3063                 /* alive_command_responce size is NOT multiple of 4 */
3064                 u32 response_buffer[(sizeof(priv->dino_alive) + 3) / 4];
3065
3066                 for (i = 0; i < ARRAY_SIZE(response_buffer); i++)
3067                         response_buffer[i] =
3068                             le32_to_cpu(ipw_read_reg32(priv,
3069                                                        IPW_BASEBAND_RX_FIFO_READ));
3070                 memcpy(&priv->dino_alive, response_buffer,
3071                        sizeof(priv->dino_alive));
3072                 if (priv->dino_alive.alive_command == 1
3073                     && priv->dino_alive.ucode_valid == 1) {
3074                         rc = 0;
3075                         IPW_DEBUG_INFO
3076                             ("Microcode OK, rev. %d (0x%x) dev. %d (0x%x) "
3077                              "of %02d/%02d/%02d %02d:%02d\n",
3078                              priv->dino_alive.software_revision,
3079                              priv->dino_alive.software_revision,
3080                              priv->dino_alive.device_identifier,
3081                              priv->dino_alive.device_identifier,
3082                              priv->dino_alive.time_stamp[0],
3083                              priv->dino_alive.time_stamp[1],
3084                              priv->dino_alive.time_stamp[2],
3085                              priv->dino_alive.time_stamp[3],
3086                              priv->dino_alive.time_stamp[4]);
3087                 } else {
3088                         IPW_DEBUG_INFO("Microcode is not alive\n");
3089                         rc = -EINVAL;
3090                 }
3091         } else {
3092                 IPW_DEBUG_INFO("No alive response from DINO\n");
3093                 rc = -ETIME;
3094         }
3095
3096         /* disable DINO, otherwise for some reason
3097            firmware have problem getting alive resp. */
3098         ipw_write_reg8(priv, IPW_BASEBAND_CONTROL_STATUS, 0);
3099
3100 //      spin_unlock_irqrestore(&priv->lock, flags);
3101
3102         return rc;
3103 }
3104
3105 static int ipw_load_firmware(struct ipw_priv *priv, u8 * data, size_t len)
3106 {
3107         int rc = -1;
3108         int offset = 0;
3109         struct fw_chunk *chunk;
3110         dma_addr_t shared_phys;
3111         u8 *shared_virt;
3112
3113         IPW_DEBUG_TRACE("<< : \n");
3114         shared_virt = pci_alloc_consistent(priv->pci_dev, len, &shared_phys);
3115
3116         if (!shared_virt)
3117                 return -ENOMEM;
3118
3119         memmove(shared_virt, data, len);
3120
3121         /* Start the Dma */
3122         rc = ipw_fw_dma_enable(priv);
3123
3124         if (priv->sram_desc.last_cb_index > 0) {
3125                 /* the DMA is already ready this would be a bug. */
3126                 BUG();
3127                 goto out;
3128         }
3129
3130         do {
3131                 chunk = (struct fw_chunk *)(data + offset);
3132                 offset += sizeof(struct fw_chunk);
3133                 /* build DMA packet and queue up for sending */
3134                 /* dma to chunk->address, the chunk->length bytes from data +
3135                  * offeset*/
3136                 /* Dma loading */
3137                 rc = ipw_fw_dma_add_buffer(priv, shared_phys + offset,
3138                                            le32_to_cpu(chunk->address),
3139                                            le32_to_cpu(chunk->length));
3140                 if (rc) {
3141                         IPW_DEBUG_INFO("dmaAddBuffer Failed\n");
3142                         goto out;
3143                 }
3144
3145                 offset += le32_to_cpu(chunk->length);
3146         } while (offset < len);
3147
3148         /* Run the DMA and wait for the answer */
3149         rc = ipw_fw_dma_kick(priv);
3150         if (rc) {
3151                 IPW_ERROR("dmaKick Failed\n");
3152                 goto out;
3153         }
3154
3155         rc = ipw_fw_dma_wait(priv);
3156         if (rc) {
3157                 IPW_ERROR("dmaWaitSync Failed\n");
3158                 goto out;
3159         }
3160       out:
3161         pci_free_consistent(priv->pci_dev, len, shared_virt, shared_phys);
3162         return rc;
3163 }
3164
3165 /* stop nic */
3166 static int ipw_stop_nic(struct ipw_priv *priv)
3167 {
3168         int rc = 0;
3169
3170         /* stop */
3171         ipw_write32(priv, IPW_RESET_REG, IPW_RESET_REG_STOP_MASTER);
3172
3173         rc = ipw_poll_bit(priv, IPW_RESET_REG,
3174                           IPW_RESET_REG_MASTER_DISABLED, 500);
3175         if (rc < 0) {
3176                 IPW_ERROR("wait for reg master disabled failed after 500ms\n");
3177                 return rc;
3178         }
3179
3180         ipw_set_bit(priv, IPW_RESET_REG, CBD_RESET_REG_PRINCETON_RESET);
3181
3182         return rc;
3183 }
3184
3185 static void ipw_start_nic(struct ipw_priv *priv)
3186 {
3187         IPW_DEBUG_TRACE(">>\n");
3188
3189         /* prvHwStartNic  release ARC */
3190         ipw_clear_bit(priv, IPW_RESET_REG,
3191                       IPW_RESET_REG_MASTER_DISABLED |
3192                       IPW_RESET_REG_STOP_MASTER |
3193                       CBD_RESET_REG_PRINCETON_RESET);
3194
3195         /* enable power management */
3196         ipw_set_bit(priv, IPW_GP_CNTRL_RW,
3197                     IPW_GP_CNTRL_BIT_HOST_ALLOWS_STANDBY);
3198
3199         IPW_DEBUG_TRACE("<<\n");
3200 }
3201
3202 static int ipw_init_nic(struct ipw_priv *priv)
3203 {
3204         int rc;
3205
3206         IPW_DEBUG_TRACE(">>\n");
3207         /* reset */
3208         /*prvHwInitNic */
3209         /* set "initialization complete" bit to move adapter to D0 state */
3210         ipw_set_bit(priv, IPW_GP_CNTRL_RW, IPW_GP_CNTRL_BIT_INIT_DONE);
3211
3212         /* low-level PLL activation */
3213         ipw_write32(priv, IPW_READ_INT_REGISTER,
3214                     IPW_BIT_INT_HOST_SRAM_READ_INT_REGISTER);
3215
3216         /* wait for clock stabilization */
3217         rc = ipw_poll_bit(priv, IPW_GP_CNTRL_RW,
3218                           IPW_GP_CNTRL_BIT_CLOCK_READY, 250);
3219         if (rc < 0)
3220                 IPW_DEBUG_INFO("FAILED wait for clock stablization\n");
3221
3222         /* assert SW reset */
3223         ipw_set_bit(priv, IPW_RESET_REG, IPW_RESET_REG_SW_RESET);
3224
3225         udelay(10);
3226
3227         /* set "initialization complete" bit to move adapter to D0 state */
3228         ipw_set_bit(priv, IPW_GP_CNTRL_RW, IPW_GP_CNTRL_BIT_INIT_DONE);
3229
3230         IPW_DEBUG_TRACE(">>\n");
3231         return 0;
3232 }
3233
3234 /* Call this function from process context, it will sleep in request_firmware.
3235  * Probe is an ok place to call this from.
3236  */
3237 static int ipw_reset_nic(struct ipw_priv *priv)
3238 {
3239         int rc = 0;
3240         unsigned long flags;
3241
3242         IPW_DEBUG_TRACE(">>\n");
3243
3244         rc = ipw_init_nic(priv);
3245
3246         spin_lock_irqsave(&priv->lock, flags);
3247         /* Clear the 'host command active' bit... */
3248         priv->status &= ~STATUS_HCMD_ACTIVE;
3249         wake_up_interruptible(&priv->wait_command_queue);
3250         priv->status &= ~(STATUS_SCANNING | STATUS_SCAN_ABORTING);
3251         wake_up_interruptible(&priv->wait_state);
3252         spin_unlock_irqrestore(&priv->lock, flags);
3253
3254         IPW_DEBUG_TRACE("<<\n");
3255         return rc;
3256 }
3257
3258
3259 struct ipw_fw {
3260         __le32 ver;
3261         __le32 boot_size;
3262         __le32 ucode_size;
3263         __le32 fw_size;
3264         u8 data[0];
3265 };
3266
3267 static int ipw_get_fw(struct ipw_priv *priv,
3268                       const struct firmware **raw, const char *name)
3269 {
3270         struct ipw_fw *fw;
3271         int rc;
3272
3273         /* ask firmware_class module to get the boot firmware off disk */
3274         rc = request_firmware(raw, name, &priv->pci_dev->dev);
3275         if (rc < 0) {
3276                 IPW_ERROR("%s request_firmware failed: Reason %d\n", name, rc);
3277                 return rc;
3278         }
3279
3280         if ((*raw)->size < sizeof(*fw)) {
3281                 IPW_ERROR("%s is too small (%zd)\n", name, (*raw)->size);
3282                 return -EINVAL;
3283         }
3284
3285         fw = (void *)(*raw)->data;
3286
3287         if ((*raw)->size < sizeof(*fw) + le32_to_cpu(fw->boot_size) +
3288             le32_to_cpu(fw->ucode_size) + le32_to_cpu(fw->fw_size)) {
3289                 IPW_ERROR("%s is too small or corrupt (%zd)\n",
3290                           name, (*raw)->size);
3291                 return -EINVAL;
3292         }
3293
3294         IPW_DEBUG_INFO("Read firmware '%s' image v%d.%d (%zd bytes)\n",
3295                        name,
3296                        le32_to_cpu(fw->ver) >> 16,
3297                        le32_to_cpu(fw->ver) & 0xff,
3298                        (*raw)->size - sizeof(*fw));
3299         return 0;
3300 }
3301
3302 #define IPW_RX_BUF_SIZE (3000)
3303
3304 static void ipw_rx_queue_reset(struct ipw_priv *priv,
3305                                       struct ipw_rx_queue *rxq)
3306 {
3307         unsigned long flags;
3308         int i;
3309
3310         spin_lock_irqsave(&rxq->lock, flags);
3311
3312         INIT_LIST_HEAD(&rxq->rx_free);
3313         INIT_LIST_HEAD(&rxq->rx_used);
3314
3315         /* Fill the rx_used queue with _all_ of the Rx buffers */
3316         for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) {
3317                 /* In the reset function, these buffers may have been allocated
3318                  * to an SKB, so we need to unmap and free potential storage */
3319                 if (rxq->pool[i].skb != NULL) {
3320                         pci_unmap_single(priv->pci_dev, rxq->pool[i].dma_addr,
3321                                          IPW_RX_BUF_SIZE, PCI_DMA_FROMDEVICE);
3322                         dev_kfree_skb(rxq->pool[i].skb);
3323                         rxq->pool[i].skb = NULL;
3324                 }
3325                 list_add_tail(&rxq->pool[i].list, &rxq->rx_used);
3326         }
3327
3328         /* Set us so that we have processed and used all buffers, but have
3329          * not restocked the Rx queue with fresh buffers */
3330         rxq->read = rxq->write = 0;
3331         rxq->processed = RX_QUEUE_SIZE - 1;
3332         rxq->free_count = 0;
3333         spin_unlock_irqrestore(&rxq->lock, flags);
3334 }
3335
3336 #ifdef CONFIG_PM
3337 static int fw_loaded = 0;
3338 static const struct firmware *raw = NULL;
3339
3340 static void free_firmware(void)
3341 {
3342         if (fw_loaded) {
3343                 release_firmware(raw);
3344                 raw = NULL;
3345                 fw_loaded = 0;
3346         }
3347 }
3348 #else
3349 #define free_firmware() do {} while (0)
3350 #endif
3351
3352 static int ipw_load(struct ipw_priv *priv)
3353 {
3354 #ifndef CONFIG_PM
3355         const struct firmware *raw = NULL;
3356 #endif
3357         struct ipw_fw *fw;
3358         u8 *boot_img, *ucode_img, *fw_img;
3359         u8 *name = NULL;
3360         int rc = 0, retries = 3;
3361
3362         switch (priv->ieee->iw_mode) {
3363         case IW_MODE_ADHOC:
3364                 name = "ipw2200-ibss.fw";
3365                 break;
3366 #ifdef CONFIG_IPW2200_MONITOR
3367         case IW_MODE_MONITOR:
3368                 name = "ipw2200-sniffer.fw";
3369                 break;
3370 #endif
3371         case IW_MODE_INFRA:
3372                 name = "ipw2200-bss.fw";
3373                 break;
3374         }
3375
3376         if (!name) {
3377                 rc = -EINVAL;
3378                 goto error;
3379         }
3380
3381 #ifdef CONFIG_PM
3382         if (!fw_loaded) {
3383 #endif
3384                 rc = ipw_get_fw(priv, &raw, name);
3385                 if (rc < 0)
3386                         goto error;
3387 #ifdef CONFIG_PM
3388         }
3389 #endif
3390
3391         fw = (void *)raw->data;
3392         boot_img = &fw->data[0];
3393         ucode_img = &fw->data[le32_to_cpu(fw->boot_size)];
3394         fw_img = &fw->data[le32_to_cpu(fw->boot_size) +
3395                            le32_to_cpu(fw->ucode_size)];
3396
3397         if (rc < 0)
3398                 goto error;
3399
3400         if (!priv->rxq)
3401                 priv->rxq = ipw_rx_queue_alloc(priv);
3402         else
3403                 ipw_rx_queue_reset(priv, priv->rxq);
3404         if (!priv->rxq) {
3405                 IPW_ERROR("Unable to initialize Rx queue\n");
3406                 goto error;
3407         }
3408
3409       retry:
3410         /* Ensure interrupts are disabled */
3411         ipw_write32(priv, IPW_INTA_MASK_R, ~IPW_INTA_MASK_ALL);
3412         priv->status &= ~STATUS_INT_ENABLED;
3413
3414         /* ack pending interrupts */
3415         ipw_write32(priv, IPW_INTA_RW, IPW_INTA_MASK_ALL);
3416
3417         ipw_stop_nic(priv);
3418
3419         rc = ipw_reset_nic(priv);
3420         if (rc < 0) {
3421                 IPW_ERROR("Unable to reset NIC\n");
3422                 goto error;
3423         }
3424
3425         ipw_zero_memory(priv, IPW_NIC_SRAM_LOWER_BOUND,
3426                         IPW_NIC_SRAM_UPPER_BOUND - IPW_NIC_SRAM_LOWER_BOUND);
3427
3428         /* DMA the initial boot firmware into the device */
3429         rc = ipw_load_firmware(priv, boot_img, le32_to_cpu(fw->boot_size));
3430         if (rc < 0) {
3431                 IPW_ERROR("Unable to load boot firmware: %d\n", rc);
3432                 goto error;
3433         }
3434
3435         /* kick start the device */
3436         ipw_start_nic(priv);
3437
3438         /* wait for the device to finish its initial startup sequence */
3439         rc = ipw_poll_bit(priv, IPW_INTA_RW,
3440                           IPW_INTA_BIT_FW_INITIALIZATION_DONE, 500);
3441         if (rc < 0) {
3442                 IPW_ERROR("device failed to boot initial fw image\n");
3443                 goto error;
3444         }
3445         IPW_DEBUG_INFO("initial device response after %dms\n", rc);
3446
3447         /* ack fw init done interrupt */
3448         ipw_write32(priv, IPW_INTA_RW, IPW_INTA_BIT_FW_INITIALIZATION_DONE);
3449
3450         /* DMA the ucode into the device */
3451         rc = ipw_load_ucode(priv, ucode_img, le32_to_cpu(fw->ucode_size));
3452         if (rc < 0) {
3453                 IPW_ERROR("Unable to load ucode: %d\n", rc);
3454                 goto error;
3455         }
3456
3457         /* stop nic */
3458         ipw_stop_nic(priv);
3459
3460         /* DMA bss firmware into the device */
3461         rc = ipw_load_firmware(priv, fw_img, le32_to_cpu(fw->fw_size));
3462         if (rc < 0) {
3463                 IPW_ERROR("Unable to load firmware: %d\n", rc);
3464                 goto error;
3465         }
3466 #ifdef CONFIG_PM
3467         fw_loaded = 1;
3468 #endif
3469
3470         ipw_write32(priv, IPW_EEPROM_LOAD_DISABLE, 0);
3471
3472         rc = ipw_queue_reset(priv);
3473         if (rc < 0) {
3474                 IPW_ERROR("Unable to initialize queues\n");
3475                 goto error;
3476         }
3477
3478         /* Ensure interrupts are disabled */
3479         ipw_write32(priv, IPW_INTA_MASK_R, ~IPW_INTA_MASK_ALL);
3480         /* ack pending interrupts */
3481         ipw_write32(priv, IPW_INTA_RW, IPW_INTA_MASK_ALL);
3482
3483         /* kick start the device */
3484         ipw_start_nic(priv);
3485
3486         if (ipw_read32(priv, IPW_INTA_RW) & IPW_INTA_BIT_PARITY_ERROR) {
3487                 if (retries > 0) {
3488                         IPW_WARNING("Parity error.  Retrying init.\n");
3489                         retries--;
3490                         goto retry;
3491                 }
3492
3493                 IPW_ERROR("TODO: Handle parity error -- schedule restart?\n");
3494                 rc = -EIO;
3495                 goto error;
3496         }
3497
3498         /* wait for the device */
3499         rc = ipw_poll_bit(priv, IPW_INTA_RW,
3500                           IPW_INTA_BIT_FW_INITIALIZATION_DONE, 500);
3501         if (rc < 0) {
3502                 IPW_ERROR("device failed to start within 500ms\n");
3503                 goto error;
3504         }
3505         IPW_DEBUG_INFO("device response after %dms\n", rc);
3506
3507         /* ack fw init done interrupt */
3508         ipw_write32(priv, IPW_INTA_RW, IPW_INTA_BIT_FW_INITIALIZATION_DONE);
3509
3510         /* read eeprom data and initialize the eeprom region of sram */
3511         priv->eeprom_delay = 1;
3512         ipw_eeprom_init_sram(priv);
3513
3514         /* enable interrupts */
3515         ipw_enable_interrupts(priv);
3516
3517         /* Ensure our queue has valid packets */
3518         ipw_rx_queue_replenish(priv);
3519
3520         ipw_write32(priv, IPW_RX_READ_INDEX, priv->rxq->read);
3521
3522         /* ack pending interrupts */
3523         ipw_write32(priv, IPW_INTA_RW, IPW_INTA_MASK_ALL);
3524
3525 #ifndef CONFIG_PM
3526         release_firmware(raw);
3527 #endif
3528         return 0;
3529
3530       error:
3531         if (priv->rxq) {
3532                 ipw_rx_queue_free(priv, priv->rxq);
3533                 priv->rxq = NULL;
3534         }
3535         ipw_tx_queue_free(priv);
3536         if (raw)
3537                 release_firmware(raw);
3538 #ifdef CONFIG_PM
3539         fw_loaded = 0;
3540         raw = NULL;
3541 #endif
3542
3543         return rc;
3544 }
3545
3546 /**
3547  * DMA services
3548  *
3549  * Theory of operation
3550  *
3551  * A queue is a circular buffers with 'Read' and 'Write' pointers.
3552  * 2 empty entries always kept in the buffer to protect from overflow.
3553  *
3554  * For Tx queue, there are low mark and high mark limits. If, after queuing
3555  * the packet for Tx, free space become < low mark, Tx queue stopped. When
3556  * reclaiming packets (on 'tx done IRQ), if free space become > high mark,
3557  * Tx queue resumed.
3558  *
3559  * The IPW operates with six queues, one receive queue in the device's
3560  * sram, one transmit queue for sending commands to the device firmware,
3561  * and four transmit queues for data.
3562  *
3563  * The four transmit queues allow for performing quality of service (qos)
3564  * transmissions as per the 802.11 protocol.  Currently Linux does not
3565  * provide a mechanism to the user for utilizing prioritized queues, so
3566  * we only utilize the first data transmit queue (queue1).
3567  */
3568
3569 /**
3570  * Driver allocates buffers of this size for Rx
3571  */
3572
3573 static inline int ipw_queue_space(const struct clx2_queue *q)
3574 {
3575         int s = q->last_used - q->first_empty;
3576         if (s <= 0)
3577                 s += q->n_bd;
3578         s -= 2;                 /* keep some reserve to not confuse empty and full situations */
3579         if (s < 0)
3580                 s = 0;
3581         return s;
3582 }
3583
3584 static inline int ipw_queue_inc_wrap(int index, int n_bd)
3585 {
3586         return (++index == n_bd) ? 0 : index;
3587 }
3588
3589 /**
3590  * Initialize common DMA queue structure
3591  *
3592  * @param q                queue to init
3593  * @param count            Number of BD's to allocate. Should be power of 2
3594  * @param read_register    Address for 'read' register
3595  *                         (not offset within BAR, full address)
3596  * @param write_register   Address for 'write' register
3597  *                         (not offset within BAR, full address)
3598  * @param base_register    Address for 'base' register
3599  *                         (not offset within BAR, full address)
3600  * @param size             Address for 'size' register
3601  *                         (not offset within BAR, full address)
3602  */
3603 static void ipw_queue_init(struct ipw_priv *priv, struct clx2_queue *q,
3604                            int count, u32 read, u32 write, u32 base, u32 size)
3605 {
3606         q->n_bd = count;
3607
3608         q->low_mark = q->n_bd / 4;
3609         if (q->low_mark < 4)
3610                 q->low_mark = 4;
3611
3612         q->high_mark = q->n_bd / 8;
3613         if (q->high_mark < 2)
3614                 q->high_mark = 2;
3615
3616         q->first_empty = q->last_used = 0;
3617         q->reg_r = read;
3618         q->reg_w = write;
3619
3620         ipw_write32(priv, base, q->dma_addr);
3621         ipw_write32(priv, size, count);
3622         ipw_write32(priv, read, 0);
3623         ipw_write32(priv, write, 0);
3624
3625         _ipw_read32(priv, 0x90);
3626 }
3627
3628 static int ipw_queue_tx_init(struct ipw_priv *priv,
3629                              struct clx2_tx_queue *q,
3630                              int count, u32 read, u32 write, u32 base, u32 size)
3631 {
3632         struct pci_dev *dev = priv->pci_dev;
3633
3634         q->txb = kmalloc(sizeof(q->txb[0]) * count, GFP_KERNEL);
3635         if (!q->txb) {
3636                 IPW_ERROR("vmalloc for auxilary BD structures failed\n");
3637                 return -ENOMEM;
3638         }
3639
3640         q->bd =
3641             pci_alloc_consistent(dev, sizeof(q->bd[0]) * count, &q->q.dma_addr);
3642         if (!q->bd) {
3643                 IPW_ERROR("pci_alloc_consistent(%zd) failed\n",
3644                           sizeof(q->bd[0]) * count);
3645                 kfree(q->txb);
3646                 q->txb = NULL;
3647                 return -ENOMEM;
3648         }
3649
3650         ipw_queue_init(priv, &q->q, count, read, write, base, size);
3651         return 0;
3652 }
3653
3654 /**
3655  * Free one TFD, those at index [txq->q.last_used].
3656  * Do NOT advance any indexes
3657  *
3658  * @param dev
3659  * @param txq
3660  */
3661 static void ipw_queue_tx_free_tfd(struct ipw_priv *priv,
3662                                   struct clx2_tx_queue *txq)
3663 {
3664         struct tfd_frame *bd = &txq->bd[txq->q.last_used];
3665         struct pci_dev *dev = priv->pci_dev;
3666         int i;
3667
3668         /* classify bd */
3669         if (bd->control_flags.message_type == TX_HOST_COMMAND_TYPE)
3670                 /* nothing to cleanup after for host commands */
3671                 return;
3672
3673         /* sanity check */
3674         if (le32_to_cpu(bd->u.data.num_chunks) > NUM_TFD_CHUNKS) {
3675                 IPW_ERROR("Too many chunks: %i\n",
3676                           le32_to_cpu(bd->u.data.num_chunks));
3677                 /** @todo issue fatal error, it is quite serious situation */
3678                 return;
3679         }
3680
3681         /* unmap chunks if any */
3682         for (i = 0; i < le32_to_cpu(bd->u.data.num_chunks); i++) {
3683                 pci_unmap_single(dev, le32_to_cpu(bd->u.data.chunk_ptr[i]),
3684                                  le16_to_cpu(bd->u.data.chunk_len[i]),
3685                                  PCI_DMA_TODEVICE);
3686                 if (txq->txb[txq->q.last_used]) {
3687                         ieee80211_txb_free(txq->txb[txq->q.last_used]);
3688                         txq->txb[txq->q.last_used] = NULL;
3689                 }
3690         }
3691 }
3692
3693 /**
3694  * Deallocate DMA queue.
3695  *
3696  * Empty queue by removing and destroying all BD's.
3697  * Free all buffers.
3698  *
3699  * @param dev
3700  * @param q
3701  */
3702 static void ipw_queue_tx_free(struct ipw_priv *priv, struct clx2_tx_queue *txq)
3703 {
3704         struct clx2_queue *q = &txq->q;
3705         struct pci_dev *dev = priv->pci_dev;
3706
3707         if (q->n_bd == 0)
3708                 return;
3709
3710         /* first, empty all BD's */
3711         for (; q->first_empty != q->last_used;
3712              q->last_used = ipw_queue_inc_wrap(q->last_used, q->n_bd)) {
3713                 ipw_queue_tx_free_tfd(priv, txq);
3714         }
3715
3716         /* free buffers belonging to queue itself */
3717         pci_free_consistent(dev, sizeof(txq->bd[0]) * q->n_bd, txq->bd,
3718                             q->dma_addr);
3719         kfree(txq->txb);
3720
3721         /* 0 fill whole structure */
3722         memset(txq, 0, sizeof(*txq));
3723 }
3724
3725 /**
3726  * Destroy all DMA queues and structures
3727  *
3728  * @param priv
3729  */
3730 static void ipw_tx_queue_free(struct ipw_priv *priv)
3731 {
3732         /* Tx CMD queue */
3733         ipw_queue_tx_free(priv, &priv->txq_cmd);
3734
3735         /* Tx queues */
3736         ipw_queue_tx_free(priv, &priv->txq[0]);
3737         ipw_queue_tx_free(priv, &priv->txq[1]);
3738         ipw_queue_tx_free(priv, &priv->txq[2]);
3739         ipw_queue_tx_free(priv, &priv->txq[3]);
3740 }
3741
3742 static void ipw_create_bssid(struct ipw_priv *priv, u8 * bssid)
3743 {
3744         /* First 3 bytes are manufacturer */
3745         bssid[0] = priv->mac_addr[0];
3746         bssid[1] = priv->mac_addr[1];
3747         bssid[2] = priv->mac_addr[2];
3748
3749         /* Last bytes are random */
3750         get_random_bytes(&bssid[3], ETH_ALEN - 3);
3751
3752         bssid[0] &= 0xfe;       /* clear multicast bit */
3753         bssid[0] |= 0x02;       /* set local assignment bit (IEEE802) */
3754 }
3755
3756 static u8 ipw_add_station(struct ipw_priv *priv, u8 * bssid)
3757 {
3758         struct ipw_station_entry entry;
3759         int i;
3760
3761         for (i = 0; i < priv->num_stations; i++) {
3762                 if (!memcmp(priv->stations[i], bssid, ETH_ALEN)) {
3763                         /* Another node is active in network */
3764                         priv->missed_adhoc_beacons = 0;
3765                         if (!(priv->config & CFG_STATIC_CHANNEL))
3766                                 /* when other nodes drop out, we drop out */
3767                                 priv->config &= ~CFG_ADHOC_PERSIST;
3768
3769                         return i;
3770                 }
3771         }
3772
3773         if (i == MAX_STATIONS)
3774                 return IPW_INVALID_STATION;
3775
3776         IPW_DEBUG_SCAN("Adding AdHoc station: " MAC_FMT "\n", MAC_ARG(bssid));
3777
3778         entry.reserved = 0;
3779         entry.support_mode = 0;
3780         memcpy(entry.mac_addr, bssid, ETH_ALEN);
3781         memcpy(priv->stations[i], bssid, ETH_ALEN);
3782         ipw_write_direct(priv, IPW_STATION_TABLE_LOWER + i * sizeof(entry),
3783                          &entry, sizeof(entry));
3784         priv->num_stations++;
3785
3786         return i;
3787 }
3788
3789 static u8 ipw_find_station(struct ipw_priv *priv, u8 * bssid)
3790 {
3791         int i;
3792
3793         for (i = 0; i < priv->num_stations; i++)
3794                 if (!memcmp(priv->stations[i], bssid, ETH_ALEN))
3795                         return i;
3796
3797         return IPW_INVALID_STATION;
3798 }
3799
3800 static void ipw_send_disassociate(struct ipw_priv *priv, int quiet)
3801 {
3802         int err;
3803
3804         if (priv->status & STATUS_ASSOCIATING) {
3805                 IPW_DEBUG_ASSOC("Disassociating while associating.\n");
3806                 queue_work(priv->workqueue, &priv->disassociate);
3807                 return;
3808         }
3809
3810         if (!(priv->status & STATUS_ASSOCIATED)) {
3811                 IPW_DEBUG_ASSOC("Disassociating while not associated.\n");
3812                 return;
3813         }
3814
3815         IPW_DEBUG_ASSOC("Disassocation attempt from " MAC_FMT " "
3816                         "on channel %d.\n",
3817                         MAC_ARG(priv->assoc_request.bssid),
3818                         priv->assoc_request.channel);
3819
3820         priv->status &= ~(STATUS_ASSOCIATING | STATUS_ASSOCIATED);
3821         priv->status |= STATUS_DISASSOCIATING;
3822
3823         if (quiet)
3824                 priv->assoc_request.assoc_type = HC_DISASSOC_QUIET;
3825         else
3826                 priv->assoc_request.assoc_type = HC_DISASSOCIATE;
3827
3828         err = ipw_send_associate(priv, &priv->assoc_request);
3829         if (err) {
3830                 IPW_DEBUG_HC("Attempt to send [dis]associate command "
3831                              "failed.\n");
3832                 return;
3833         }
3834
3835 }
3836
3837 static int ipw_disassociate(void *data)
3838 {
3839         struct ipw_priv *priv = data;
3840         if (!(priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)))
3841                 return 0;
3842         ipw_send_disassociate(data, 0);
3843         return 1;
3844 }
3845
3846 static void ipw_bg_disassociate(void *data)
3847 {
3848         struct ipw_priv *priv = data;
3849         mutex_lock(&priv->mutex);
3850         ipw_disassociate(data);
3851         mutex_unlock(&priv->mutex);
3852 }
3853
3854 static void ipw_system_config(void *data)
3855 {
3856         struct ipw_priv *priv = data;
3857
3858 #ifdef CONFIG_IPW2200_PROMISCUOUS
3859         if (priv->prom_net_dev && netif_running(priv->prom_net_dev)) {
3860                 priv->sys_config.accept_all_data_frames = 1;
3861                 priv->sys_config.accept_non_directed_frames = 1;
3862                 priv->sys_config.accept_all_mgmt_bcpr = 1;
3863                 priv->sys_config.accept_all_mgmt_frames = 1;
3864         }
3865 #endif
3866
3867         ipw_send_system_config(priv);
3868 }
3869
3870 struct ipw_status_code {
3871         u16 status;
3872         const char *reason;
3873 };
3874
3875 static const struct ipw_status_code ipw_status_codes[] = {
3876         {0x00, "Successful"},
3877         {0x01, "Unspecified failure"},
3878         {0x0A, "Cannot support all requested capabilities in the "
3879          "Capability information field"},
3880         {0x0B, "Reassociation denied due to inability to confirm that "
3881          "association exists"},
3882         {0x0C, "Association denied due to reason outside the scope of this "
3883          "standard"},
3884         {0x0D,
3885          "Responding station does not support the specified authentication "
3886          "algorithm"},
3887         {0x0E,
3888          "Received an Authentication frame with authentication sequence "
3889          "transaction sequence number out of expected sequence"},
3890         {0x0F, "Authentication rejected because of challenge failure"},
3891         {0x10, "Authentication rejected due to timeout waiting for next "
3892          "frame in sequence"},
3893         {0x11, "Association denied because AP is unable to handle additional "
3894          "associated stations"},
3895         {0x12,
3896          "Association denied due to requesting station not supporting all "
3897          "of the datarates in the BSSBasicServiceSet Parameter"},
3898         {0x13,
3899          "Association denied due to requesting station not supporting "
3900          "short preamble operation"},
3901         {0x14,
3902          "Association denied due to requesting station not supporting "
3903          "PBCC encoding"},
3904         {0x15,
3905          "Association denied due to requesting station not supporting "
3906          "channel agility"},
3907         {0x19,
3908          "Association denied due to requesting station not supporting "
3909          "short slot operation"},
3910         {0x1A,
3911          "Association denied due to requesting station not supporting "
3912          "DSSS-OFDM operation"},
3913         {0x28, "Invalid Information Element"},
3914         {0x29, "Group Cipher is not valid"},
3915         {0x2A, "Pairwise Cipher is not valid"},
3916         {0x2B, "AKMP is not valid"},
3917         {0x2C, "Unsupported RSN IE version"},
3918         {0x2D, "Invalid RSN IE Capabilities"},
3919         {0x2E, "Cipher suite is rejected per security policy"},
3920 };
3921
3922 #ifdef CONFIG_IPW2200_DEBUG
3923 static const char *ipw_get_status_code(u16 status)
3924 {
3925         int i;
3926         for (i = 0; i < ARRAY_SIZE(ipw_status_codes); i++)
3927                 if (ipw_status_codes[i].status == (status & 0xff))
3928                         return ipw_status_codes[i].reason;
3929         return "Unknown status value.";
3930 }
3931 #endif
3932
3933 static void inline average_init(struct average *avg)
3934 {
3935         memset(avg, 0, sizeof(*avg));
3936 }
3937
3938 #define DEPTH_RSSI 8
3939 #define DEPTH_NOISE 16
3940 static s16 exponential_average(s16 prev_avg, s16 val, u8 depth)
3941 {
3942         return ((depth-1)*prev_avg +  val)/depth;
3943 }
3944
3945 static void average_add(struct average *avg, s16 val)
3946 {
3947         avg->sum -= avg->entries[avg->pos];
3948         avg->sum += val;
3949         avg->entries[avg->pos++] = val;
3950         if (unlikely(avg->pos == AVG_ENTRIES)) {
3951                 avg->init = 1;
3952                 avg->pos = 0;
3953         }
3954 }
3955
3956 static s16 average_value(struct average *avg)
3957 {
3958         if (!unlikely(avg->init)) {
3959                 if (avg->pos)
3960                         return avg->sum / avg->pos;
3961                 return 0;
3962         }
3963
3964         return avg->sum / AVG_ENTRIES;
3965 }
3966
3967 static void ipw_reset_stats(struct ipw_priv *priv)
3968 {
3969         u32 len = sizeof(u32);
3970
3971         priv->quality = 0;
3972
3973         average_init(&priv->average_missed_beacons);
3974         priv->exp_avg_rssi = -60;
3975         priv->exp_avg_noise = -85 + 0x100;
3976
3977         priv->last_rate = 0;
3978         priv->last_missed_beacons = 0;
3979         priv->last_rx_packets = 0;
3980         priv->last_tx_packets = 0;
3981         priv->last_tx_failures = 0;
3982
3983         /* Firmware managed, reset only when NIC is restarted, so we have to
3984          * normalize on the current value */
3985         ipw_get_ordinal(priv, IPW_ORD_STAT_RX_ERR_CRC,
3986                         &priv->last_rx_err, &len);
3987         ipw_get_ordinal(priv, IPW_ORD_STAT_TX_FAILURE,
3988                         &priv->last_tx_failures, &len);
3989
3990         /* Driver managed, reset with each association */
3991         priv->missed_adhoc_beacons = 0;
3992         priv->missed_beacons = 0;
3993         priv->tx_packets = 0;
3994         priv->rx_packets = 0;
3995
3996 }
3997
3998 static u32 ipw_get_max_rate(struct ipw_priv *priv)
3999 {
4000         u32 i = 0x80000000;
4001         u32 mask = priv->rates_mask;
4002         /* If currently associated in B mode, restrict the maximum
4003          * rate match to B rates */
4004         if (priv->assoc_request.ieee_mode == IPW_B_MODE)
4005                 mask &= IEEE80211_CCK_RATES_MASK;
4006
4007         /* TODO: Verify that the rate is supported by the current rates
4008          * list. */
4009
4010         while (i && !(mask & i))
4011                 i >>= 1;
4012         switch (i) {
4013         case IEEE80211_CCK_RATE_1MB_MASK:
4014                 return 1000000;
4015         case IEEE80211_CCK_RATE_2MB_MASK:
4016                 return 2000000;
4017         case IEEE80211_CCK_RATE_5MB_MASK:
4018                 return 5500000;
4019         case IEEE80211_OFDM_RATE_6MB_MASK:
4020                 return 6000000;
4021         case IEEE80211_OFDM_RATE_9MB_MASK:
4022                 return 9000000;
4023         case IEEE80211_CCK_RATE_11MB_MASK:
4024                 return 11000000;
4025         case IEEE80211_OFDM_RATE_12MB_MASK:
4026                 return 12000000;
4027         case IEEE80211_OFDM_RATE_18MB_MASK:
4028                 return 18000000;
4029         case IEEE80211_OFDM_RATE_24MB_MASK:
4030                 return 24000000;
4031         case IEEE80211_OFDM_RATE_36MB_MASK:
4032                 return 36000000;
4033         case IEEE80211_OFDM_RATE_48MB_MASK:
4034                 return 48000000;
4035         case IEEE80211_OFDM_RATE_54MB_MASK:
4036                 return 54000000;
4037         }
4038
4039         if (priv->ieee->mode == IEEE_B)
4040                 return 11000000;
4041         else
4042                 return 54000000;
4043 }
4044
4045 static u32 ipw_get_current_rate(struct ipw_priv *priv)
4046 {
4047         u32 rate, len = sizeof(rate);
4048         int err;
4049
4050         if (!(priv->status & STATUS_ASSOCIATED))
4051                 return 0;
4052
4053         if (priv->tx_packets > IPW_REAL_RATE_RX_PACKET_THRESHOLD) {
4054                 err = ipw_get_ordinal(priv, IPW_ORD_STAT_TX_CURR_RATE, &rate,
4055                                       &len);
4056                 if (err) {
4057                         IPW_DEBUG_INFO("failed querying ordinals.\n");
4058                         return 0;
4059                 }
4060         } else
4061                 return ipw_get_max_rate(priv);
4062
4063         switch (rate) {
4064         case IPW_TX_RATE_1MB:
4065                 return 1000000;
4066         case IPW_TX_RATE_2MB:
4067                 return 2000000;
4068         case IPW_TX_RATE_5MB:
4069                 return 5500000;
4070         case IPW_TX_RATE_6MB:
4071                 return 6000000;
4072         case IPW_TX_RATE_9MB:
4073                 return 9000000;
4074         case IPW_TX_RATE_11MB:
4075                 return 11000000;
4076         case IPW_TX_RATE_12MB:
4077                 return 12000000;
4078         case IPW_TX_RATE_18MB:
4079                 return 18000000;
4080         case IPW_TX_RATE_24MB:
4081                 return 24000000;
4082         case IPW_TX_RATE_36MB:
4083                 return 36000000;
4084         case IPW_TX_RATE_48MB:
4085                 return 48000000;
4086         case IPW_TX_RATE_54MB:
4087                 return 54000000;
4088         }
4089
4090         return 0;
4091 }
4092
4093 #define IPW_STATS_INTERVAL (2 * HZ)
4094 static void ipw_gather_stats(struct ipw_priv *priv)
4095 {
4096         u32 rx_err, rx_err_delta, rx_packets_delta;
4097         u32 tx_failures, tx_failures_delta, tx_packets_delta;
4098         u32 missed_beacons_percent, missed_beacons_delta;
4099         u32 quality = 0;
4100         u32 len = sizeof(u32);
4101         s16 rssi;
4102         u32 beacon_quality, signal_quality, tx_quality, rx_quality,
4103             rate_quality;
4104         u32 max_rate;
4105
4106         if (!(priv->status & STATUS_ASSOCIATED)) {
4107                 priv->quality = 0;
4108                 return;
4109         }
4110
4111         /* Update the statistics */
4112         ipw_get_ordinal(priv, IPW_ORD_STAT_MISSED_BEACONS,
4113                         &priv->missed_beacons, &len);
4114         missed_beacons_delta = priv->missed_beacons - priv->last_missed_beacons;
4115         priv->last_missed_beacons = priv->missed_beacons;
4116         if (priv->assoc_request.beacon_interval) {
4117                 missed_beacons_percent = missed_beacons_delta *
4118                     (HZ * priv->assoc_request.beacon_interval) /
4119                     (IPW_STATS_INTERVAL * 10);
4120         } else {
4121                 missed_beacons_percent = 0;
4122         }
4123         average_add(&priv->average_missed_beacons, missed_beacons_percent);
4124
4125         ipw_get_ordinal(priv, IPW_ORD_STAT_RX_ERR_CRC, &rx_err, &len);
4126         rx_err_delta = rx_err - priv->last_rx_err;
4127         priv->last_rx_err = rx_err;
4128
4129         ipw_get_ordinal(priv, IPW_ORD_STAT_TX_FAILURE, &tx_failures, &len);
4130         tx_failures_delta = tx_failures - priv->last_tx_failures;
4131         priv->last_tx_failures = tx_failures;
4132
4133         rx_packets_delta = priv->rx_packets - priv->last_rx_packets;
4134         priv->last_rx_packets = priv->rx_packets;
4135
4136         tx_packets_delta = priv->tx_packets - priv->last_tx_packets;
4137         priv->last_tx_packets = priv->tx_packets;
4138
4139         /* Calculate quality based on the following:
4140          *
4141          * Missed beacon: 100% = 0, 0% = 70% missed
4142          * Rate: 60% = 1Mbs, 100% = Max
4143          * Rx and Tx errors represent a straight % of total Rx/Tx
4144          * RSSI: 100% = > -50,  0% = < -80
4145          * Rx errors: 100% = 0, 0% = 50% missed
4146          *
4147          * The lowest computed quality is used.
4148          *
4149          */
4150 #define BEACON_THRESHOLD 5
4151         beacon_quality = 100 - missed_beacons_percent;
4152         if (beacon_quality < BEACON_THRESHOLD)
4153                 beacon_quality = 0;
4154         else
4155                 beacon_quality = (beacon_quality - BEACON_THRESHOLD) * 100 /
4156                     (100 - BEACON_THRESHOLD);
4157         IPW_DEBUG_STATS("Missed beacon: %3d%% (%d%%)\n",
4158                         beacon_quality, missed_beacons_percent);
4159
4160         priv->last_rate = ipw_get_current_rate(priv);
4161         max_rate = ipw_get_max_rate(priv);
4162         rate_quality = priv->last_rate * 40 / max_rate + 60;
4163         IPW_DEBUG_STATS("Rate quality : %3d%% (%dMbs)\n",
4164                         rate_quality, priv->last_rate / 1000000);
4165
4166         if (rx_packets_delta > 100 && rx_packets_delta + rx_err_delta)
4167                 rx_quality = 100 - (rx_err_delta * 100) /
4168                     (rx_packets_delta + rx_err_delta);
4169         else
4170                 rx_quality = 100;
4171         IPW_DEBUG_STATS("Rx quality   : %3d%% (%u errors, %u packets)\n",
4172                         rx_quality, rx_err_delta, rx_packets_delta);
4173
4174         if (tx_packets_delta > 100 && tx_packets_delta + tx_failures_delta)
4175                 tx_quality = 100 - (tx_failures_delta * 100) /
4176                     (tx_packets_delta + tx_failures_delta);
4177         else
4178                 tx_quality = 100;
4179         IPW_DEBUG_STATS("Tx quality   : %3d%% (%u errors, %u packets)\n",
4180                         tx_quality, tx_failures_delta, tx_packets_delta);
4181
4182         rssi = priv->exp_avg_rssi;
4183         signal_quality =
4184             (100 *
4185              (priv->ieee->perfect_rssi - priv->ieee->worst_rssi) *
4186              (priv->ieee->perfect_rssi - priv->ieee->worst_rssi) -
4187              (priv->ieee->perfect_rssi - rssi) *
4188              (15 * (priv->ieee->perfect_rssi - priv->ieee->worst_rssi) +
4189               62 * (priv->ieee->perfect_rssi - rssi))) /
4190             ((priv->ieee->perfect_rssi - priv->ieee->worst_rssi) *
4191              (priv->ieee->perfect_rssi - priv->ieee->worst_rssi));
4192         if (signal_quality > 100)
4193                 signal_quality = 100;
4194         else if (signal_quality < 1)
4195                 signal_quality = 0;
4196
4197         IPW_DEBUG_STATS("Signal level : %3d%% (%d dBm)\n",
4198                         signal_quality, rssi);
4199
4200         quality = min(beacon_quality,
4201                       min(rate_quality,
4202                           min(tx_quality, min(rx_quality, signal_quality))));
4203         if (quality == beacon_quality)
4204                 IPW_DEBUG_STATS("Quality (%d%%): Clamped to missed beacons.\n",
4205                                 quality);
4206         if (quality == rate_quality)
4207                 IPW_DEBUG_STATS("Quality (%d%%): Clamped to rate quality.\n",
4208                                 quality);
4209         if (quality == tx_quality)
4210                 IPW_DEBUG_STATS("Quality (%d%%): Clamped to Tx quality.\n",
4211                                 quality);
4212         if (quality == rx_quality)
4213                 IPW_DEBUG_STATS("Quality (%d%%): Clamped to Rx quality.\n",
4214                                 quality);
4215         if (quality == signal_quality)
4216                 IPW_DEBUG_STATS("Quality (%d%%): Clamped to signal quality.\n",
4217                                 quality);
4218
4219         priv->quality = quality;
4220
4221         queue_delayed_work(priv->workqueue, &priv->gather_stats,
4222                            IPW_STATS_INTERVAL);
4223 }
4224
4225 static void ipw_bg_gather_stats(void *data)
4226 {
4227         struct ipw_priv *priv = data;
4228         mutex_lock(&priv->mutex);
4229         ipw_gather_stats(data);
4230         mutex_unlock(&priv->mutex);
4231 }
4232
4233 /* Missed beacon behavior:
4234  * 1st missed -> roaming_threshold, just wait, don't do any scan/roam.
4235  * roaming_threshold -> disassociate_threshold, scan and roam for better signal.
4236  * Above disassociate threshold, give up and stop scanning.
4237  * Roaming is disabled if disassociate_threshold <= roaming_threshold  */
4238 static void ipw_handle_missed_beacon(struct ipw_priv *priv,
4239                                             int missed_count)
4240 {
4241         priv->notif_missed_beacons = missed_count;
4242
4243         if (missed_count > priv->disassociate_threshold &&
4244             priv->status & STATUS_ASSOCIATED) {
4245                 /* If associated and we've hit the missed
4246                  * beacon threshold, disassociate, turn
4247                  * off roaming, and abort any active scans */
4248                 IPW_DEBUG(IPW_DL_INFO | IPW_DL_NOTIF |
4249                           IPW_DL_STATE | IPW_DL_ASSOC,
4250                           "Missed beacon: %d - disassociate\n", missed_count);
4251                 priv->status &= ~STATUS_ROAMING;
4252                 if (priv->status & STATUS_SCANNING) {
4253                         IPW_DEBUG(IPW_DL_INFO | IPW_DL_NOTIF |
4254                                   IPW_DL_STATE,
4255                                   "Aborting scan with missed beacon.\n");
4256                         queue_work(priv->workqueue, &priv->abort_scan);
4257                 }
4258
4259                 queue_work(priv->workqueue, &priv->disassociate);
4260                 return;
4261         }
4262
4263         if (priv->status & STATUS_ROAMING) {
4264                 /* If we are currently roaming, then just
4265                  * print a debug statement... */
4266                 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE,
4267                           "Missed beacon: %d - roam in progress\n",
4268                           missed_count);
4269                 return;
4270         }
4271
4272         if (roaming &&
4273             (missed_count > priv->roaming_threshold &&
4274              missed_count <= priv->disassociate_threshold)) {
4275                 /* If we are not already roaming, set the ROAM
4276                  * bit in the status and kick off a scan.
4277                  * This can happen several times before we reach
4278                  * disassociate_threshold. */
4279                 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE,
4280                           "Missed beacon: %d - initiate "
4281                           "roaming\n", missed_count);
4282                 if (!(priv->status & STATUS_ROAMING)) {
4283                         priv->status |= STATUS_ROAMING;
4284                         if (!(priv->status & STATUS_SCANNING))
4285                                 queue_work(priv->workqueue,
4286                                            &priv->request_scan);
4287                 }
4288                 return;
4289         }
4290
4291         if (priv->status & STATUS_SCANNING) {
4292                 /* Stop scan to keep fw from getting
4293                  * stuck (only if we aren't roaming --
4294                  * otherwise we'll never scan more than 2 or 3
4295                  * channels..) */
4296                 IPW_DEBUG(IPW_DL_INFO | IPW_DL_NOTIF | IPW_DL_STATE,
4297                           "Aborting scan with missed beacon.\n");
4298                 queue_work(priv->workqueue, &priv->abort_scan);
4299         }
4300
4301         IPW_DEBUG_NOTIF("Missed beacon: %d\n", missed_count);
4302 }
4303
4304 /**
4305  * Handle host notification packet.
4306  * Called from interrupt routine
4307  */
4308 static void ipw_rx_notification(struct ipw_priv *priv,
4309                                        struct ipw_rx_notification *notif)
4310 {
4311         notif->size = le16_to_cpu(notif->size);
4312
4313         IPW_DEBUG_NOTIF("type = %i (%d bytes)\n", notif->subtype, notif->size);
4314
4315         switch (notif->subtype) {
4316         case HOST_NOTIFICATION_STATUS_ASSOCIATED:{
4317                         struct notif_association *assoc = &notif->u.assoc;
4318
4319                         switch (assoc->state) {
4320                         case CMAS_ASSOCIATED:{
4321                                         IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4322                                                   IPW_DL_ASSOC,
4323                                                   "associated: '%s' " MAC_FMT
4324                                                   " \n",
4325                                                   escape_essid(priv->essid,
4326                                                                priv->essid_len),
4327                                                   MAC_ARG(priv->bssid));
4328
4329                                         switch (priv->ieee->iw_mode) {
4330                                         case IW_MODE_INFRA:
4331                                                 memcpy(priv->ieee->bssid,
4332                                                        priv->bssid, ETH_ALEN);
4333                                                 break;
4334
4335                                         case IW_MODE_ADHOC:
4336                                                 memcpy(priv->ieee->bssid,
4337                                                        priv->bssid, ETH_ALEN);
4338
4339                                                 /* clear out the station table */
4340                                                 priv->num_stations = 0;
4341
4342                                                 IPW_DEBUG_ASSOC
4343                                                     ("queueing adhoc check\n");
4344                                                 queue_delayed_work(priv->
4345                                                                    workqueue,
4346                                                                    &priv->
4347                                                                    adhoc_check,
4348                                                                    priv->
4349                                                                    assoc_request.
4350                                                                    beacon_interval);
4351                                                 break;
4352                                         }
4353
4354                                         priv->status &= ~STATUS_ASSOCIATING;
4355                                         priv->status |= STATUS_ASSOCIATED;
4356                                         queue_work(priv->workqueue,
4357                                                    &priv->system_config);
4358
4359 #ifdef CONFIG_IPW2200_QOS
4360 #define IPW_GET_PACKET_STYPE(x) WLAN_FC_GET_STYPE( \
4361                          le16_to_cpu(((struct ieee80211_hdr *)(x))->frame_ctl))
4362                                         if ((priv->status & STATUS_AUTH) &&
4363                                             (IPW_GET_PACKET_STYPE(&notif->u.raw)
4364                                              == IEEE80211_STYPE_ASSOC_RESP)) {
4365                                                 if ((sizeof
4366                                                      (struct
4367                                                       ieee80211_assoc_response)
4368                                                      <= notif->size)
4369                                                     && (notif->size <= 2314)) {
4370                                                         struct
4371                                                         ieee80211_rx_stats
4372                                                             stats = {
4373                                                                 .len =
4374                                                                     notif->
4375                                                                     size - 1,
4376                                                         };
4377
4378                                                         IPW_DEBUG_QOS
4379                                                             ("QoS Associate "
4380                                                              "size %d\n",
4381                                                              notif->size);
4382                                                         ieee80211_rx_mgt(priv->
4383                                                                          ieee,
4384                                                                          (struct
4385                                                                           ieee80211_hdr_4addr
4386                                                                           *)
4387                                                                          &notif->u.raw, &stats);
4388                                                 }
4389                                         }
4390 #endif
4391
4392                                         schedule_work(&priv->link_up);
4393
4394                                         break;
4395                                 }
4396
4397                         case CMAS_AUTHENTICATED:{
4398                                         if (priv->
4399                                             status & (STATUS_ASSOCIATED |
4400                                                       STATUS_AUTH)) {
4401 #ifdef CONFIG_IPW2200_DEBUG
4402                                                 struct notif_authenticate *auth
4403                                                     = &notif->u.auth;
4404                                                 IPW_DEBUG(IPW_DL_NOTIF |
4405                                                           IPW_DL_STATE |
4406                                                           IPW_DL_ASSOC,
4407                                                           "deauthenticated: '%s' "
4408                                                           MAC_FMT
4409                                                           ": (0x%04X) - %s \n",
4410                                                           escape_essid(priv->
4411                                                                        essid,
4412                                                                        priv->
4413                                                                        essid_len),
4414                                                           MAC_ARG(priv->bssid),
4415                                                           ntohs(auth->status),
4416                                                           ipw_get_status_code
4417                                                           (ntohs
4418                                                            (auth->status)));
4419 #endif
4420
4421                                                 priv->status &=
4422                                                     ~(STATUS_ASSOCIATING |
4423                                                       STATUS_AUTH |
4424                                                       STATUS_ASSOCIATED);
4425
4426                                                 schedule_work(&priv->link_down);
4427                                                 break;
4428                                         }
4429
4430                                         IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4431                                                   IPW_DL_ASSOC,
4432                                                   "authenticated: '%s' " MAC_FMT
4433                                                   "\n",
4434                                                   escape_essid(priv->essid,
4435                                                                priv->essid_len),
4436                                                   MAC_ARG(priv->bssid));
4437                                         break;
4438                                 }
4439
4440                         case CMAS_INIT:{
4441                                         if (priv->status & STATUS_AUTH) {
4442                                                 struct
4443                                                     ieee80211_assoc_response
4444                                                 *resp;
4445                                                 resp =
4446                                                     (struct
4447                                                      ieee80211_assoc_response
4448                                                      *)&notif->u.raw;
4449                                                 IPW_DEBUG(IPW_DL_NOTIF |
4450                                                           IPW_DL_STATE |
4451                                                           IPW_DL_ASSOC,
4452                                                           "association failed (0x%04X): %s\n",
4453                                                           ntohs(resp->status),
4454                                                           ipw_get_status_code
4455                                                           (ntohs
4456                                                            (resp->status)));
4457                                         }
4458
4459                                         IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4460                                                   IPW_DL_ASSOC,
4461                                                   "disassociated: '%s' " MAC_FMT
4462                                                   " \n",
4463                                                   escape_essid(priv->essid,
4464                                                                priv->essid_len),
4465                                                   MAC_ARG(priv->bssid));
4466
4467                                         priv->status &=
4468                                             ~(STATUS_DISASSOCIATING |
4469                                               STATUS_ASSOCIATING |
4470                                               STATUS_ASSOCIATED | STATUS_AUTH);
4471                                         if (priv->assoc_network
4472                                             && (priv->assoc_network->
4473                                                 capability &
4474                                                 WLAN_CAPABILITY_IBSS))
4475                                                 ipw_remove_current_network
4476                                                     (priv);
4477
4478                                         schedule_work(&priv->link_down);
4479
4480                                         break;
4481                                 }
4482
4483                         case CMAS_RX_ASSOC_RESP:
4484                                 break;
4485
4486                         default:
4487                                 IPW_ERROR("assoc: unknown (%d)\n",
4488                                           assoc->state);
4489                                 break;
4490                         }
4491
4492                         break;
4493                 }
4494
4495         case HOST_NOTIFICATION_STATUS_AUTHENTICATE:{
4496                         struct notif_authenticate *auth = &notif->u.auth;
4497                         switch (auth->state) {
4498                         case CMAS_AUTHENTICATED:
4499                                 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE,
4500                                           "authenticated: '%s' " MAC_FMT " \n",
4501                                           escape_essid(priv->essid,
4502                                                        priv->essid_len),
4503                                           MAC_ARG(priv->bssid));
4504                                 priv->status |= STATUS_AUTH;
4505                                 break;
4506
4507                         case CMAS_INIT:
4508                                 if (priv->status & STATUS_AUTH) {
4509                                         IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4510                                                   IPW_DL_ASSOC,
4511                                                   "authentication failed (0x%04X): %s\n",
4512                                                   ntohs(auth->status),
4513                                                   ipw_get_status_code(ntohs
4514                                                                       (auth->
4515                                                                        status)));
4516                                 }
4517                                 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4518                                           IPW_DL_ASSOC,
4519                                           "deauthenticated: '%s' " MAC_FMT "\n",
4520                                           escape_essid(priv->essid,
4521                                                        priv->essid_len),
4522                                           MAC_ARG(priv->bssid));
4523
4524                                 priv->status &= ~(STATUS_ASSOCIATING |
4525                                                   STATUS_AUTH |
4526                                                   STATUS_ASSOCIATED);
4527
4528                                 schedule_work(&priv->link_down);
4529                                 break;
4530
4531                         case CMAS_TX_AUTH_SEQ_1:
4532                                 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4533                                           IPW_DL_ASSOC, "AUTH_SEQ_1\n");
4534                                 break;
4535                         case CMAS_RX_AUTH_SEQ_2:
4536                                 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4537                                           IPW_DL_ASSOC, "AUTH_SEQ_2\n");
4538                                 break;
4539                         case CMAS_AUTH_SEQ_1_PASS:
4540                                 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4541                                           IPW_DL_ASSOC, "AUTH_SEQ_1_PASS\n");
4542                                 break;
4543                         case CMAS_AUTH_SEQ_1_FAIL:
4544                                 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4545                                           IPW_DL_ASSOC, "AUTH_SEQ_1_FAIL\n");
4546                                 break;
4547                         case CMAS_TX_AUTH_SEQ_3:
4548                                 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4549                                           IPW_DL_ASSOC, "AUTH_SEQ_3\n");
4550                                 break;
4551                         case CMAS_RX_AUTH_SEQ_4:
4552                                 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4553                                           IPW_DL_ASSOC, "RX_AUTH_SEQ_4\n");
4554                                 break;
4555                         case CMAS_AUTH_SEQ_2_PASS:
4556                                 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4557                                           IPW_DL_ASSOC, "AUTH_SEQ_2_PASS\n");
4558                                 break;
4559                         case CMAS_AUTH_SEQ_2_FAIL:
4560                                 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4561                                           IPW_DL_ASSOC, "AUT_SEQ_2_FAIL\n");
4562                                 break;
4563                         case CMAS_TX_ASSOC:
4564                                 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4565                                           IPW_DL_ASSOC, "TX_ASSOC\n");
4566                                 break;
4567                         case CMAS_RX_ASSOC_RESP:
4568                                 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4569                                           IPW_DL_ASSOC, "RX_ASSOC_RESP\n");
4570
4571                                 break;
4572                         case CMAS_ASSOCIATED:
4573                                 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4574                                           IPW_DL_ASSOC, "ASSOCIATED\n");
4575                                 break;
4576                         default:
4577                                 IPW_DEBUG_NOTIF("auth: failure - %d\n",
4578                                                 auth->state);
4579                                 break;
4580                         }
4581                         break;
4582                 }
4583
4584         case HOST_NOTIFICATION_STATUS_SCAN_CHANNEL_RESULT:{
4585                         struct notif_channel_result *x =
4586                             &notif->u.channel_result;
4587
4588                         if (notif->size == sizeof(*x)) {
4589                                 IPW_DEBUG_SCAN("Scan result for channel %d\n",
4590                                                x->channel_num);
4591                         } else {
4592                                 IPW_DEBUG_SCAN("Scan result of wrong size %d "
4593                                                "(should be %zd)\n",
4594                                                notif->size, sizeof(*x));
4595                         }
4596                         break;
4597                 }
4598
4599         case HOST_NOTIFICATION_STATUS_SCAN_COMPLETED:{
4600                         struct notif_scan_complete *x = &notif->u.scan_complete;
4601                         if (notif->size == sizeof(*x)) {
4602                                 IPW_DEBUG_SCAN
4603                                     ("Scan completed: type %d, %d channels, "
4604                                      "%d status\n", x->scan_type,
4605                                      x->num_channels, x->status);
4606                         } else {
4607                                 IPW_ERROR("Scan completed of wrong size %d "
4608                                           "(should be %zd)\n",
4609                                           notif->size, sizeof(*x));
4610                         }
4611
4612                         priv->status &=
4613                             ~(STATUS_SCANNING | STATUS_SCAN_ABORTING);
4614
4615                         wake_up_interruptible(&priv->wait_state);
4616                         cancel_delayed_work(&priv->scan_check);
4617
4618                         if (priv->status & STATUS_EXIT_PENDING)
4619                                 break;
4620
4621                         priv->ieee->scans++;
4622
4623 #ifdef CONFIG_IPW2200_MONITOR
4624                         if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
4625                                 priv->status |= STATUS_SCAN_FORCED;
4626                                 queue_work(priv->workqueue,
4627                                            &priv->request_scan);
4628                                 break;
4629                         }
4630                         priv->status &= ~STATUS_SCAN_FORCED;
4631 #endif                          /* CONFIG_IPW2200_MONITOR */
4632
4633                         if (!(priv->status & (STATUS_ASSOCIATED |
4634                                               STATUS_ASSOCIATING |
4635                                               STATUS_ROAMING |
4636                                               STATUS_DISASSOCIATING)))
4637                                 queue_work(priv->workqueue, &priv->associate);
4638                         else if (priv->status & STATUS_ROAMING) {
4639                                 if (x->status == SCAN_COMPLETED_STATUS_COMPLETE)
4640                                         /* If a scan completed and we are in roam mode, then
4641                                          * the scan that completed was the one requested as a
4642                                          * result of entering roam... so, schedule the
4643                                          * roam work */
4644                                         queue_work(priv->workqueue,
4645                                                    &priv->roam);
4646                                 else
4647                                         /* Don't schedule if we aborted the scan */
4648                                         priv->status &= ~STATUS_ROAMING;
4649                         } else if (priv->status & STATUS_SCAN_PENDING)
4650                                 queue_work(priv->workqueue,
4651                                            &priv->request_scan);
4652                         else if (priv->config & CFG_BACKGROUND_SCAN
4653                                  && priv->status & STATUS_ASSOCIATED)
4654                                 queue_delayed_work(priv->workqueue,
4655                                                    &priv->request_scan, HZ);
4656
4657                         /* Send an empty event to user space.
4658                          * We don't send the received data on the event because
4659                          * it would require us to do complex transcoding, and
4660                          * we want to minimise the work done in the irq handler
4661                          * Use a request to extract the data.
4662                          * Also, we generate this even for any scan, regardless
4663                          * on how the scan was initiated. User space can just
4664                          * sync on periodic scan to get fresh data...
4665                          * Jean II */
4666                         if (x->status == SCAN_COMPLETED_STATUS_COMPLETE) {
4667                                 union iwreq_data wrqu;
4668
4669                                 wrqu.data.length = 0;
4670                                 wrqu.data.flags = 0;
4671                                 wireless_send_event(priv->net_dev, SIOCGIWSCAN,
4672                                                     &wrqu, NULL);
4673                         }
4674                         break;
4675                 }
4676
4677         case HOST_NOTIFICATION_STATUS_FRAG_LENGTH:{
4678                         struct notif_frag_length *x = &notif->u.frag_len;
4679
4680                         if (notif->size == sizeof(*x))
4681                                 IPW_ERROR("Frag length: %d\n",
4682                                           le16_to_cpu(x->frag_length));
4683                         else
4684                                 IPW_ERROR("Frag length of wrong size %d "
4685                                           "(should be %zd)\n",
4686                                           notif->size, sizeof(*x));
4687                         break;
4688                 }
4689
4690         case HOST_NOTIFICATION_STATUS_LINK_DETERIORATION:{
4691                         struct notif_link_deterioration *x =
4692                             &notif->u.link_deterioration;
4693
4694                         if (notif->size == sizeof(*x)) {
4695                                 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE,
4696                                         "link deterioration: type %d, cnt %d\n",
4697                                         x->silence_notification_type,
4698                                         x->silence_count);
4699                                 memcpy(&priv->last_link_deterioration, x,
4700                                        sizeof(*x));
4701                         } else {
4702                                 IPW_ERROR("Link Deterioration of wrong size %d "
4703                                           "(should be %zd)\n",
4704                                           notif->size, sizeof(*x));
4705                         }
4706                         break;
4707                 }
4708
4709         case HOST_NOTIFICATION_DINO_CONFIG_RESPONSE:{
4710                         IPW_ERROR("Dino config\n");
4711                         if (priv->hcmd
4712                             && priv->hcmd->cmd != HOST_CMD_DINO_CONFIG)
4713                                 IPW_ERROR("Unexpected DINO_CONFIG_RESPONSE\n");
4714
4715                         break;
4716                 }
4717
4718         case HOST_NOTIFICATION_STATUS_BEACON_STATE:{
4719                         struct notif_beacon_state *x = &notif->u.beacon_state;
4720                         if (notif->size != sizeof(*x)) {
4721                                 IPW_ERROR
4722                                     ("Beacon state of wrong size %d (should "
4723                                      "be %zd)\n", notif->size, sizeof(*x));
4724                                 break;
4725                         }
4726
4727                         if (le32_to_cpu(x->state) ==
4728                             HOST_NOTIFICATION_STATUS_BEACON_MISSING)
4729                                 ipw_handle_missed_beacon(priv,
4730                                                          le32_to_cpu(x->
4731                                                                      number));
4732
4733                         break;
4734                 }
4735
4736         case HOST_NOTIFICATION_STATUS_TGI_TX_KEY:{
4737                         struct notif_tgi_tx_key *x = &notif->u.tgi_tx_key;
4738                         if (notif->size == sizeof(*x)) {
4739                                 IPW_ERROR("TGi Tx Key: state 0x%02x sec type "
4740                                           "0x%02x station %d\n",
4741                                           x->key_state, x->security_type,
4742                                           x->station_index);
4743                                 break;
4744                         }
4745
4746                         IPW_ERROR
4747                             ("TGi Tx Key of wrong size %d (should be %zd)\n",
4748                              notif->size, sizeof(*x));
4749                         break;
4750                 }
4751
4752         case HOST_NOTIFICATION_CALIB_KEEP_RESULTS:{
4753                         struct notif_calibration *x = &notif->u.calibration;
4754
4755                         if (notif->size == sizeof(*x)) {
4756                                 memcpy(&priv->calib, x, sizeof(*x));
4757                                 IPW_DEBUG_INFO("TODO: Calibration\n");
4758                                 break;
4759                         }
4760
4761                         IPW_ERROR
4762                             ("Calibration of wrong size %d (should be %zd)\n",
4763                              notif->size, sizeof(*x));
4764                         break;
4765                 }
4766
4767         case HOST_NOTIFICATION_NOISE_STATS:{
4768                         if (notif->size == sizeof(u32)) {
4769                                 priv->exp_avg_noise =
4770                                     exponential_average(priv->exp_avg_noise,
4771                                     (u8) (le32_to_cpu(notif->u.noise.value) & 0xff),
4772                                     DEPTH_NOISE);
4773                                 break;
4774                         }
4775
4776                         IPW_ERROR
4777                             ("Noise stat is wrong size %d (should be %zd)\n",
4778                              notif->size, sizeof(u32));
4779                         break;
4780                 }
4781
4782         default:
4783                 IPW_DEBUG_NOTIF("Unknown notification: "
4784                                 "subtype=%d,flags=0x%2x,size=%d\n",
4785                                 notif->subtype, notif->flags, notif->size);
4786         }
4787 }
4788
4789 /**
4790  * Destroys all DMA structures and initialise them again
4791  *
4792  * @param priv
4793  * @return error code
4794  */
4795 static int ipw_queue_reset(struct ipw_priv *priv)
4796 {
4797         int rc = 0;
4798         /** @todo customize queue sizes */
4799         int nTx = 64, nTxCmd = 8;
4800         ipw_tx_queue_free(priv);
4801         /* Tx CMD queue */
4802         rc = ipw_queue_tx_init(priv, &priv->txq_cmd, nTxCmd,
4803                                IPW_TX_CMD_QUEUE_READ_INDEX,
4804                                IPW_TX_CMD_QUEUE_WRITE_INDEX,
4805                                IPW_TX_CMD_QUEUE_BD_BASE,
4806                                IPW_TX_CMD_QUEUE_BD_SIZE);
4807         if (rc) {
4808                 IPW_ERROR("Tx Cmd queue init failed\n");
4809                 goto error;
4810         }
4811         /* Tx queue(s) */
4812         rc = ipw_queue_tx_init(priv, &priv->txq[0], nTx,
4813                                IPW_TX_QUEUE_0_READ_INDEX,
4814                                IPW_TX_QUEUE_0_WRITE_INDEX,
4815                                IPW_TX_QUEUE_0_BD_BASE, IPW_TX_QUEUE_0_BD_SIZE);
4816         if (rc) {
4817                 IPW_ERROR("Tx 0 queue init failed\n");
4818                 goto error;
4819         }
4820         rc = ipw_queue_tx_init(priv, &priv->txq[1], nTx,
4821                                IPW_TX_QUEUE_1_READ_INDEX,
4822                                IPW_TX_QUEUE_1_WRITE_INDEX,
4823                                IPW_TX_QUEUE_1_BD_BASE, IPW_TX_QUEUE_1_BD_SIZE);
4824         if (rc) {
4825                 IPW_ERROR("Tx 1 queue init failed\n");
4826                 goto error;
4827         }
4828         rc = ipw_queue_tx_init(priv, &priv->txq[2], nTx,
4829                                IPW_TX_QUEUE_2_READ_INDEX,
4830                                IPW_TX_QUEUE_2_WRITE_INDEX,
4831                                IPW_TX_QUEUE_2_BD_BASE, IPW_TX_QUEUE_2_BD_SIZE);
4832         if (rc) {
4833                 IPW_ERROR("Tx 2 queue init failed\n");
4834                 goto error;
4835         }
4836         rc = ipw_queue_tx_init(priv, &priv->txq[3], nTx,
4837                                IPW_TX_QUEUE_3_READ_INDEX,
4838                                IPW_TX_QUEUE_3_WRITE_INDEX,
4839                                IPW_TX_QUEUE_3_BD_BASE, IPW_TX_QUEUE_3_BD_SIZE);
4840         if (rc) {
4841                 IPW_ERROR("Tx 3 queue init failed\n");
4842                 goto error;
4843         }
4844         /* statistics */
4845         priv->rx_bufs_min = 0;
4846         priv->rx_pend_max = 0;
4847         return rc;
4848
4849       error:
4850         ipw_tx_queue_free(priv);
4851         return rc;
4852 }
4853
4854 /**
4855  * Reclaim Tx queue entries no more used by NIC.
4856  *
4857  * When FW adwances 'R' index, all entries between old and
4858  * new 'R' index need to be reclaimed. As result, some free space
4859  * forms. If there is enough free space (> low mark), wake Tx queue.
4860  *
4861  * @note Need to protect against garbage in 'R' index
4862  * @param priv
4863  * @param txq
4864  * @param qindex
4865  * @return Number of used entries remains in the queue
4866  */
4867 static int ipw_queue_tx_reclaim(struct ipw_priv *priv,
4868                                 struct clx2_tx_queue *txq, int qindex)
4869 {
4870         u32 hw_tail;
4871         int used;
4872         struct clx2_queue *q = &txq->q;
4873
4874         hw_tail = ipw_read32(priv, q->reg_r);
4875         if (hw_tail >= q->n_bd) {
4876                 IPW_ERROR
4877                     ("Read index for DMA queue (%d) is out of range [0-%d)\n",
4878                      hw_tail, q->n_bd);
4879                 goto done;
4880         }
4881         for (; q->last_used != hw_tail;
4882              q->last_used = ipw_queue_inc_wrap(q->last_used, q->n_bd)) {
4883                 ipw_queue_tx_free_tfd(priv, txq);
4884                 priv->tx_packets++;
4885         }
4886       done:
4887         if ((ipw_queue_space(q) > q->low_mark) &&
4888             (qindex >= 0) &&
4889             (priv->status & STATUS_ASSOCIATED) && netif_running(priv->net_dev))
4890                 netif_wake_queue(priv->net_dev);
4891         used = q->first_empty - q->last_used;
4892         if (used < 0)
4893                 used += q->n_bd;
4894
4895         return used;
4896 }
4897
4898 static int ipw_queue_tx_hcmd(struct ipw_priv *priv, int hcmd, void *buf,
4899                              int len, int sync)
4900 {
4901         struct clx2_tx_queue *txq = &priv->txq_cmd;
4902         struct clx2_queue *q = &txq->q;
4903         struct tfd_frame *tfd;
4904
4905         if (ipw_queue_space(q) < (sync ? 1 : 2)) {
4906                 IPW_ERROR("No space for Tx\n");
4907                 return -EBUSY;
4908         }
4909
4910         tfd = &txq->bd[q->first_empty];
4911         txq->txb[q->first_empty] = NULL;
4912
4913         memset(tfd, 0, sizeof(*tfd));
4914         tfd->control_flags.message_type = TX_HOST_COMMAND_TYPE;
4915         tfd->control_flags.control_bits = TFD_NEED_IRQ_MASK;
4916         priv->hcmd_seq++;
4917         tfd->u.cmd.index = hcmd;
4918         tfd->u.cmd.length = len;
4919         memcpy(tfd->u.cmd.payload, buf, len);
4920         q->first_empty = ipw_queue_inc_wrap(q->first_empty, q->n_bd);
4921         ipw_write32(priv, q->reg_w, q->first_empty);
4922         _ipw_read32(priv, 0x90);
4923
4924         return 0;
4925 }
4926
4927 /*
4928  * Rx theory of operation
4929  *
4930  * The host allocates 32 DMA target addresses and passes the host address
4931  * to the firmware at register IPW_RFDS_TABLE_LOWER + N * RFD_SIZE where N is
4932  * 0 to 31
4933  *
4934  * Rx Queue Indexes
4935  * The host/firmware share two index registers for managing the Rx buffers.
4936  *
4937  * The READ index maps to the first position that the firmware may be writing
4938  * to -- the driver can read up to (but not including) this position and get
4939  * good data.
4940  * The READ index is managed by the firmware once the card is enabled.
4941  *
4942  * The WRITE index maps to the last position the driver has read from -- the
4943  * position preceding WRITE is the last slot the firmware can place a packet.
4944  *
4945  * The queue is empty (no good data) if WRITE = READ - 1, and is full if
4946  * WRITE = READ.
4947  *
4948  * During initialization the host sets up the READ queue position to the first
4949  * INDEX position, and WRITE to the last (READ - 1 wrapped)
4950  *
4951  * When the firmware places a packet in a buffer it will advance the READ index
4952  * and fire the RX interrupt.  The driver can then query the READ index and
4953  * process as many packets as possible, moving the WRITE index forward as it
4954  * resets the Rx queue buffers with new memory.
4955  *
4956  * The management in the driver is as follows:
4957  * + A list of pre-allocated SKBs is stored in ipw->rxq->rx_free.  When
4958  *   ipw->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled
4959  *   to replensish the ipw->rxq->rx_free.
4960  * + In ipw_rx_queue_replenish (scheduled) if 'processed' != 'read' then the
4961  *   ipw->rxq is replenished and the READ INDEX is updated (updating the
4962  *   'processed' and 'read' driver indexes as well)
4963  * + A received packet is processed and handed to the kernel network stack,
4964  *   detached from the ipw->rxq.  The driver 'processed' index is updated.
4965  * + The Host/Firmware ipw->rxq is replenished at tasklet time from the rx_free
4966  *   list. If there are no allocated buffers in ipw->rxq->rx_free, the READ
4967  *   INDEX is not incremented and ipw->status(RX_STALLED) is set.  If there
4968  *   were enough free buffers and RX_STALLED is set it is cleared.
4969  *
4970  *
4971  * Driver sequence:
4972  *
4973  * ipw_rx_queue_alloc()       Allocates rx_free
4974  * ipw_rx_queue_replenish()   Replenishes rx_free list from rx_used, and calls
4975  *                            ipw_rx_queue_restock
4976  * ipw_rx_queue_restock()     Moves available buffers from rx_free into Rx
4977  *                            queue, updates firmware pointers, and updates
4978  *                            the WRITE index.  If insufficient rx_free buffers
4979  *                            are available, schedules ipw_rx_queue_replenish
4980  *
4981  * -- enable interrupts --
4982  * ISR - ipw_rx()             Detach ipw_rx_mem_buffers from pool up to the
4983  *                            READ INDEX, detaching the SKB from the pool.
4984  *                            Moves the packet buffer from queue to rx_used.
4985  *                            Calls ipw_rx_queue_restock to refill any empty
4986  *                            slots.
4987  * ...
4988  *
4989  */
4990
4991 /*
4992  * If there are slots in the RX queue that  need to be restocked,
4993  * and we have free pre-allocated buffers, fill the ranks as much
4994  * as we can pulling from rx_free.
4995  *
4996  * This moves the 'write' index forward to catch up with 'processed', and
4997  * also updates the memory address in the firmware to reference the new
4998  * target buffer.
4999  */
5000 static void ipw_rx_queue_restock(struct ipw_priv *priv)
5001 {
5002         struct ipw_rx_queue *rxq = priv->rxq;
5003         struct list_head *element;
5004         struct ipw_rx_mem_buffer *rxb;
5005         unsigned long flags;
5006         int write;
5007
5008         spin_lock_irqsave(&rxq->lock, flags);
5009         write = rxq->write;
5010         while ((rxq->write != rxq->processed) && (rxq->free_count)) {
5011                 element = rxq->rx_free.next;
5012                 rxb = list_entry(element, struct ipw_rx_mem_buffer, list);
5013                 list_del(element);
5014
5015                 ipw_write32(priv, IPW_RFDS_TABLE_LOWER + rxq->write * RFD_SIZE,
5016                             rxb->dma_addr);
5017                 rxq->queue[rxq->write] = rxb;
5018                 rxq->write = (rxq->write + 1) % RX_QUEUE_SIZE;
5019                 rxq->free_count--;
5020         }
5021         spin_unlock_irqrestore(&rxq->lock, flags);
5022
5023         /* If the pre-allocated buffer pool is dropping low, schedule to
5024          * refill it */
5025         if (rxq->free_count <= RX_LOW_WATERMARK)
5026                 queue_work(priv->workqueue, &priv->rx_replenish);
5027
5028         /* If we've added more space for the firmware to place data, tell it */
5029         if (write != rxq->write)
5030                 ipw_write32(priv, IPW_RX_WRITE_INDEX, rxq->write);
5031 }
5032
5033 /*
5034  * Move all used packet from rx_used to rx_free, allocating a new SKB for each.
5035  * Also restock the Rx queue via ipw_rx_queue_restock.
5036  *
5037  * This is called as a scheduled work item (except for during intialization)
5038  */
5039 static void ipw_rx_queue_replenish(void *data)
5040 {
5041         struct ipw_priv *priv = data;
5042         struct ipw_rx_queue *rxq = priv->rxq;
5043         struct list_head *element;
5044         struct ipw_rx_mem_buffer *rxb;
5045         unsigned long flags;
5046
5047         spin_lock_irqsave(&rxq->lock, flags);
5048         while (!list_empty(&rxq->rx_used)) {
5049                 element = rxq->rx_used.next;
5050                 rxb = list_entry(element, struct ipw_rx_mem_buffer, list);
5051                 rxb->skb = alloc_skb(IPW_RX_BUF_SIZE, GFP_ATOMIC);
5052                 if (!rxb->skb) {
5053                         printk(KERN_CRIT "%s: Can not allocate SKB buffers.\n",
5054                                priv->net_dev->name);
5055                         /* We don't reschedule replenish work here -- we will
5056                          * call the restock method and if it still needs
5057                          * more buffers it will schedule replenish */
5058                         break;
5059                 }
5060                 list_del(element);
5061
5062                 rxb->rxb = (struct ipw_rx_buffer *)rxb->skb->data;
5063                 rxb->dma_addr =
5064                     pci_map_single(priv->pci_dev, rxb->skb->data,
5065                                    IPW_RX_BUF_SIZE, PCI_DMA_FROMDEVICE);
5066
5067                 list_add_tail(&rxb->list, &rxq->rx_free);
5068                 rxq->free_count++;
5069         }
5070         spin_unlock_irqrestore(&rxq->lock, flags);
5071
5072         ipw_rx_queue_restock(priv);
5073 }
5074
5075 static void ipw_bg_rx_queue_replenish(void *data)
5076 {
5077         struct ipw_priv *priv = data;
5078         mutex_lock(&priv->mutex);
5079         ipw_rx_queue_replenish(data);
5080         mutex_unlock(&priv->mutex);
5081 }
5082
5083 /* Assumes that the skb field of the buffers in 'pool' is kept accurate.
5084  * If an SKB has been detached, the POOL needs to have its SKB set to NULL
5085  * This free routine walks the list of POOL entries and if SKB is set to
5086  * non NULL it is unmapped and freed
5087  */
5088 static void ipw_rx_queue_free(struct ipw_priv *priv, struct ipw_rx_queue *rxq)
5089 {
5090         int i;
5091
5092         if (!rxq)
5093                 return;
5094
5095         for (i = 0; i < RX_QUEUE_SIZE + RX_FREE_BUFFERS; i++) {
5096                 if (rxq->pool[i].skb != NULL) {
5097                         pci_unmap_single(priv->pci_dev, rxq->pool[i].dma_addr,
5098                                          IPW_RX_BUF_SIZE, PCI_DMA_FROMDEVICE);
5099                         dev_kfree_skb(rxq->pool[i].skb);
5100                 }
5101         }
5102
5103         kfree(rxq);
5104 }
5105
5106 static struct ipw_rx_queue *ipw_rx_queue_alloc(struct ipw_priv *priv)
5107 {
5108         struct ipw_rx_queue *rxq;
5109         int i;
5110
5111         rxq = kzalloc(sizeof(*rxq), GFP_KERNEL);
5112         if (unlikely(!rxq)) {
5113                 IPW_ERROR("memory allocation failed\n");
5114                 return NULL;
5115         }
5116         spin_lock_init(&rxq->lock);
5117         INIT_LIST_HEAD(&rxq->rx_free);
5118         INIT_LIST_HEAD(&rxq->rx_used);
5119
5120         /* Fill the rx_used queue with _all_ of the Rx buffers */
5121         for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++)
5122                 list_add_tail(&rxq->pool[i].list, &rxq->rx_used);
5123
5124         /* Set us so that we have processed and used all buffers, but have
5125          * not restocked the Rx queue with fresh buffers */
5126         rxq->read = rxq->write = 0;
5127         rxq->processed = RX_QUEUE_SIZE - 1;
5128         rxq->free_count = 0;
5129
5130         return rxq;
5131 }
5132
5133 static int ipw_is_rate_in_mask(struct ipw_priv *priv, int ieee_mode, u8 rate)
5134 {
5135         rate &= ~IEEE80211_BASIC_RATE_MASK;
5136         if (ieee_mode == IEEE_A) {
5137                 switch (rate) {
5138                 case IEEE80211_OFDM_RATE_6MB:
5139                         return priv->rates_mask & IEEE80211_OFDM_RATE_6MB_MASK ?
5140                             1 : 0;
5141                 case IEEE80211_OFDM_RATE_9MB:
5142                         return priv->rates_mask & IEEE80211_OFDM_RATE_9MB_MASK ?
5143                             1 : 0;
5144                 case IEEE80211_OFDM_RATE_12MB:
5145                         return priv->
5146                             rates_mask & IEEE80211_OFDM_RATE_12MB_MASK ? 1 : 0;
5147                 case IEEE80211_OFDM_RATE_18MB:
5148                         return priv->
5149                             rates_mask & IEEE80211_OFDM_RATE_18MB_MASK ? 1 : 0;
5150                 case IEEE80211_OFDM_RATE_24MB:
5151                         return priv->
5152                             rates_mask & IEEE80211_OFDM_RATE_24MB_MASK ? 1 : 0;
5153                 case IEEE80211_OFDM_RATE_36MB:
5154                         return priv->
5155                             rates_mask & IEEE80211_OFDM_RATE_36MB_MASK ? 1 : 0;
5156                 case IEEE80211_OFDM_RATE_48MB:
5157                         return priv->
5158                             rates_mask & IEEE80211_OFDM_RATE_48MB_MASK ? 1 : 0;
5159                 case IEEE80211_OFDM_RATE_54MB:
5160                         return priv->
5161                             rates_mask & IEEE80211_OFDM_RATE_54MB_MASK ? 1 : 0;
5162                 default:
5163                         return 0;
5164                 }
5165         }
5166
5167         /* B and G mixed */
5168         switch (rate) {
5169         case IEEE80211_CCK_RATE_1MB:
5170                 return priv->rates_mask & IEEE80211_CCK_RATE_1MB_MASK ? 1 : 0;
5171         case IEEE80211_CCK_RATE_2MB:
5172                 return priv->rates_mask & IEEE80211_CCK_RATE_2MB_MASK ? 1 : 0;
5173         case IEEE80211_CCK_RATE_5MB:
5174                 return priv->rates_mask & IEEE80211_CCK_RATE_5MB_MASK ? 1 : 0;
5175         case IEEE80211_CCK_RATE_11MB:
5176                 return priv->rates_mask & IEEE80211_CCK_RATE_11MB_MASK ? 1 : 0;
5177         }
5178
5179         /* If we are limited to B modulations, bail at this point */
5180         if (ieee_mode == IEEE_B)
5181                 return 0;
5182
5183         /* G */
5184         switch (rate) {
5185         case IEEE80211_OFDM_RATE_6MB:
5186                 return priv->rates_mask & IEEE80211_OFDM_RATE_6MB_MASK ? 1 : 0;
5187         case IEEE80211_OFDM_RATE_9MB:
5188                 return priv->rates_mask & IEEE80211_OFDM_RATE_9MB_MASK ? 1 : 0;
5189         case IEEE80211_OFDM_RATE_12MB:
5190                 return priv->rates_mask & IEEE80211_OFDM_RATE_12MB_MASK ? 1 : 0;
5191         case IEEE80211_OFDM_RATE_18MB:
5192                 return priv->rates_mask & IEEE80211_OFDM_RATE_18MB_MASK ? 1 : 0;
5193         case IEEE80211_OFDM_RATE_24MB:
5194                 return priv->rates_mask & IEEE80211_OFDM_RATE_24MB_MASK ? 1 : 0;
5195         case IEEE80211_OFDM_RATE_36MB:
5196                 return priv->rates_mask & IEEE80211_OFDM_RATE_36MB_MASK ? 1 : 0;
5197         case IEEE80211_OFDM_RATE_48MB:
5198                 return priv->rates_mask & IEEE80211_OFDM_RATE_48MB_MASK ? 1 : 0;
5199         case IEEE80211_OFDM_RATE_54MB:
5200                 return priv->rates_mask & IEEE80211_OFDM_RATE_54MB_MASK ? 1 : 0;
5201         }
5202
5203         return 0;
5204 }
5205
5206 static int ipw_compatible_rates(struct ipw_priv *priv,
5207                                 const struct ieee80211_network *network,
5208                                 struct ipw_supported_rates *rates)
5209 {
5210         int num_rates, i;
5211
5212         memset(rates, 0, sizeof(*rates));
5213         num_rates = min(network->rates_len, (u8) IPW_MAX_RATES);
5214         rates->num_rates = 0;
5215         for (i = 0; i < num_rates; i++) {
5216                 if (!ipw_is_rate_in_mask(priv, network->mode,
5217                                          network->rates[i])) {
5218
5219                         if (network->rates[i] & IEEE80211_BASIC_RATE_MASK) {
5220                                 IPW_DEBUG_SCAN("Adding masked mandatory "
5221                                                "rate %02X\n",
5222                                                network->rates[i]);
5223                                 rates->supported_rates[rates->num_rates++] =
5224                                     network->rates[i];
5225                                 continue;
5226                         }
5227
5228                         IPW_DEBUG_SCAN("Rate %02X masked : 0x%08X\n",
5229                                        network->rates[i], priv->rates_mask);
5230                         continue;
5231                 }
5232
5233                 rates->supported_rates[rates->num_rates++] = network->rates[i];
5234         }
5235
5236         num_rates = min(network->rates_ex_len,
5237                         (u8) (IPW_MAX_RATES - num_rates));
5238         for (i = 0; i < num_rates; i++) {
5239                 if (!ipw_is_rate_in_mask(priv, network->mode,
5240                                          network->rates_ex[i])) {
5241                         if (network->rates_ex[i] & IEEE80211_BASIC_RATE_MASK) {
5242                                 IPW_DEBUG_SCAN("Adding masked mandatory "
5243                                                "rate %02X\n",
5244                                                network->rates_ex[i]);
5245                                 rates->supported_rates[rates->num_rates++] =
5246                                     network->rates[i];
5247                                 continue;
5248                         }
5249
5250                         IPW_DEBUG_SCAN("Rate %02X masked : 0x%08X\n",
5251                                        network->rates_ex[i], priv->rates_mask);
5252                         continue;
5253                 }
5254
5255                 rates->supported_rates[rates->num_rates++] =
5256                     network->rates_ex[i];
5257         }
5258
5259         return 1;
5260 }
5261
5262 static void ipw_copy_rates(struct ipw_supported_rates *dest,
5263                                   const struct ipw_supported_rates *src)
5264 {
5265         u8 i;
5266         for (i = 0; i < src->num_rates; i++)
5267                 dest->supported_rates[i] = src->supported_rates[i];
5268         dest->num_rates = src->num_rates;
5269 }
5270
5271 /* TODO: Look at sniffed packets in the air to determine if the basic rate
5272  * mask should ever be used -- right now all callers to add the scan rates are
5273  * set with the modulation = CCK, so BASIC_RATE_MASK is never set... */
5274 static void ipw_add_cck_scan_rates(struct ipw_supported_rates *rates,
5275                                    u8 modulation, u32 rate_mask)
5276 {
5277         u8 basic_mask = (IEEE80211_OFDM_MODULATION == modulation) ?
5278             IEEE80211_BASIC_RATE_MASK : 0;
5279
5280         if (rate_mask & IEEE80211_CCK_RATE_1MB_MASK)
5281                 rates->supported_rates[rates->num_rates++] =
5282                     IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_1MB;
5283
5284         if (rate_mask & IEEE80211_CCK_RATE_2MB_MASK)
5285                 rates->supported_rates[rates->num_rates++] =
5286                     IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_2MB;
5287
5288         if (rate_mask & IEEE80211_CCK_RATE_5MB_MASK)
5289                 rates->supported_rates[rates->num_rates++] = basic_mask |
5290                     IEEE80211_CCK_RATE_5MB;
5291
5292         if (rate_mask & IEEE80211_CCK_RATE_11MB_MASK)
5293                 rates->supported_rates[rates->num_rates++] = basic_mask |
5294                     IEEE80211_CCK_RATE_11MB;
5295 }
5296
5297 static void ipw_add_ofdm_scan_rates(struct ipw_supported_rates *rates,
5298                                     u8 modulation, u32 rate_mask)
5299 {
5300         u8 basic_mask = (IEEE80211_OFDM_MODULATION == modulation) ?
5301             IEEE80211_BASIC_RATE_MASK : 0;
5302
5303         if (rate_mask & IEEE80211_OFDM_RATE_6MB_MASK)
5304                 rates->supported_rates[rates->num_rates++] = basic_mask |
5305                     IEEE80211_OFDM_RATE_6MB;
5306
5307         if (rate_mask & IEEE80211_OFDM_RATE_9MB_MASK)
5308                 rates->supported_rates[rates->num_rates++] =
5309                     IEEE80211_OFDM_RATE_9MB;
5310
5311         if (rate_mask & IEEE80211_OFDM_RATE_12MB_MASK)
5312                 rates->supported_rates[rates->num_rates++] = basic_mask |
5313                     IEEE80211_OFDM_RATE_12MB;
5314
5315         if (rate_mask & IEEE80211_OFDM_RATE_18MB_MASK)
5316                 rates->supported_rates[rates->num_rates++] =
5317                     IEEE80211_OFDM_RATE_18MB;
5318
5319         if (rate_mask & IEEE80211_OFDM_RATE_24MB_MASK)
5320                 rates->supported_rates[rates->num_rates++] = basic_mask |
5321                     IEEE80211_OFDM_RATE_24MB;
5322
5323         if (rate_mask & IEEE80211_OFDM_RATE_36MB_MASK)
5324                 rates->supported_rates[rates->num_rates++] =
5325                     IEEE80211_OFDM_RATE_36MB;
5326
5327         if (rate_mask & IEEE80211_OFDM_RATE_48MB_MASK)
5328                 rates->supported_rates[rates->num_rates++] =
5329                     IEEE80211_OFDM_RATE_48MB;
5330
5331         if (rate_mask & IEEE80211_OFDM_RATE_54MB_MASK)
5332                 rates->supported_rates[rates->num_rates++] =
5333                     IEEE80211_OFDM_RATE_54MB;
5334 }
5335
5336 struct ipw_network_match {
5337         struct ieee80211_network *network;
5338         struct ipw_supported_rates rates;
5339 };
5340
5341 static int ipw_find_adhoc_network(struct ipw_priv *priv,
5342                                   struct ipw_network_match *match,
5343                                   struct ieee80211_network *network,
5344                                   int roaming)
5345 {
5346         struct ipw_supported_rates rates;
5347
5348         /* Verify that this network's capability is compatible with the
5349          * current mode (AdHoc or Infrastructure) */
5350         if ((priv->ieee->iw_mode == IW_MODE_ADHOC &&
5351              !(network->capability & WLAN_CAPABILITY_IBSS))) {
5352                 IPW_DEBUG_MERGE("Network '%s (" MAC_FMT ")' excluded due to "
5353                                 "capability mismatch.\n",
5354                                 escape_essid(network->ssid, network->ssid_len),
5355                                 MAC_ARG(network->bssid));
5356                 return 0;
5357         }
5358
5359         /* If we do not have an ESSID for this AP, we can not associate with
5360          * it */
5361         if (network->flags & NETWORK_EMPTY_ESSID) {
5362                 IPW_DEBUG_MERGE("Network '%s (" MAC_FMT ")' excluded "
5363                                 "because of hidden ESSID.\n",
5364                                 escape_essid(network->ssid, network->ssid_len),
5365                                 MAC_ARG(network->bssid));
5366                 return 0;
5367         }
5368
5369         if (unlikely(roaming)) {
5370                 /* If we are roaming, then ensure check if this is a valid
5371                  * network to try and roam to */
5372                 if ((network->ssid_len != match->network->ssid_len) ||
5373                     memcmp(network->ssid, match->network->ssid,
5374                            network->ssid_len)) {
5375                         IPW_DEBUG_MERGE("Netowrk '%s (" MAC_FMT ")' excluded "
5376                                         "because of non-network ESSID.\n",
5377                                         escape_essid(network->ssid,
5378                                                      network->ssid_len),
5379                                         MAC_ARG(network->bssid));
5380                         return 0;
5381                 }
5382         } else {
5383                 /* If an ESSID has been configured then compare the broadcast
5384                  * ESSID to ours */
5385                 if ((priv->config & CFG_STATIC_ESSID) &&
5386                     ((network->ssid_len != priv->essid_len) ||
5387                      memcmp(network->ssid, priv->essid,
5388                             min(network->ssid_len, priv->essid_len)))) {
5389                         char escaped[IW_ESSID_MAX_SIZE * 2 + 1];
5390
5391                         strncpy(escaped,
5392                                 escape_essid(network->ssid, network->ssid_len),
5393                                 sizeof(escaped));
5394                         IPW_DEBUG_MERGE("Network '%s (" MAC_FMT ")' excluded "
5395                                         "because of ESSID mismatch: '%s'.\n",
5396                                         escaped, MAC_ARG(network->bssid),
5397                                         escape_essid(priv->essid,
5398                                                      priv->essid_len));
5399                         return 0;
5400                 }
5401         }
5402
5403         /* If the old network rate is better than this one, don't bother
5404          * testing everything else. */
5405
5406         if (network->time_stamp[0] < match->network->time_stamp[0]) {
5407                 IPW_DEBUG_MERGE("Network '%s excluded because newer than "
5408                                 "current network.\n",
5409                                 escape_essid(match->network->ssid,
5410                                              match->network->ssid_len));
5411                 return 0;
5412         } else if (network->time_stamp[1] < match->network->time_stamp[1]) {
5413                 IPW_DEBUG_MERGE("Network '%s excluded because newer than "
5414                                 "current network.\n",
5415                                 escape_essid(match->network->ssid,
5416                                              match->network->ssid_len));
5417                 return 0;
5418         }
5419
5420         /* Now go through and see if the requested network is valid... */
5421         if (priv->ieee->scan_age != 0 &&
5422             time_after(jiffies, network->last_scanned + priv->ieee->scan_age)) {
5423                 IPW_DEBUG_MERGE("Network '%s (" MAC_FMT ")' excluded "
5424                                 "because of age: %ums.\n",
5425                                 escape_essid(network->ssid, network->ssid_len),
5426                                 MAC_ARG(network->bssid),
5427                                 jiffies_to_msecs(jiffies -
5428                                                  network->last_scanned));
5429                 return 0;
5430         }
5431
5432         if ((priv->config & CFG_STATIC_CHANNEL) &&
5433             (network->channel != priv->channel)) {
5434                 IPW_DEBUG_MERGE("Network '%s (" MAC_FMT ")' excluded "
5435                                 "because of channel mismatch: %d != %d.\n",
5436                                 escape_essid(network->ssid, network->ssid_len),
5437                                 MAC_ARG(network->bssid),
5438                                 network->channel, priv->channel);
5439                 return 0;
5440         }
5441
5442         /* Verify privacy compatability */
5443         if (((priv->capability & CAP_PRIVACY_ON) ? 1 : 0) !=
5444             ((network->capability & WLAN_CAPABILITY_PRIVACY) ? 1 : 0)) {
5445                 IPW_DEBUG_MERGE("Network '%s (" MAC_FMT ")' excluded "
5446                                 "because of privacy mismatch: %s != %s.\n",
5447                                 escape_essid(network->ssid, network->ssid_len),
5448                                 MAC_ARG(network->bssid),
5449                                 priv->
5450                                 capability & CAP_PRIVACY_ON ? "on" : "off",
5451                                 network->
5452                                 capability & WLAN_CAPABILITY_PRIVACY ? "on" :
5453                                 "off");
5454                 return 0;
5455         }
5456
5457         if (!memcmp(network->bssid, priv->bssid, ETH_ALEN)) {
5458                 IPW_DEBUG_MERGE("Network '%s (" MAC_FMT ")' excluded "
5459                                 "because of the same BSSID match: " MAC_FMT
5460                                 ".\n", escape_essid(network->ssid,
5461                                                     network->ssid_len),
5462                                 MAC_ARG(network->bssid), MAC_ARG(priv->bssid));
5463                 return 0;
5464         }
5465
5466         /* Filter out any incompatible freq / mode combinations */
5467         if (!ieee80211_is_valid_mode(priv->ieee, network->mode)) {
5468                 IPW_DEBUG_MERGE("Network '%s (" MAC_FMT ")' excluded "
5469                                 "because of invalid frequency/mode "
5470                                 "combination.\n",
5471                                 escape_essid(network->ssid, network->ssid_len),
5472                                 MAC_ARG(network->bssid));
5473                 return 0;
5474         }
5475
5476         /* Ensure that the rates supported by the driver are compatible with
5477          * this AP, including verification of basic rates (mandatory) */
5478         if (!ipw_compatible_rates(priv, network, &rates)) {
5479                 IPW_DEBUG_MERGE("Network '%s (" MAC_FMT ")' excluded "
5480                                 "because configured rate mask excludes "
5481                                 "AP mandatory rate.\n",
5482                                 escape_essid(network->ssid, network->ssid_len),
5483                                 MAC_ARG(network->bssid));
5484                 return 0;
5485         }
5486
5487         if (rates.num_rates == 0) {
5488                 IPW_DEBUG_MERGE("Network '%s (" MAC_FMT ")' excluded "
5489                                 "because of no compatible rates.\n",
5490                                 escape_essid(network->ssid, network->ssid_len),
5491                                 MAC_ARG(network->bssid));
5492                 return 0;
5493         }
5494
5495         /* TODO: Perform any further minimal comparititive tests.  We do not
5496          * want to put too much policy logic here; intelligent scan selection
5497          * should occur within a generic IEEE 802.11 user space tool.  */
5498
5499         /* Set up 'new' AP to this network */
5500         ipw_copy_rates(&match->rates, &rates);
5501         match->network = network;
5502         IPW_DEBUG_MERGE("Network '%s (" MAC_FMT ")' is a viable match.\n",
5503                         escape_essid(network->ssid, network->ssid_len),
5504                         MAC_ARG(network->bssid));
5505
5506         return 1;
5507 }
5508
5509 static void ipw_merge_adhoc_network(void *data)
5510 {
5511         struct ipw_priv *priv = data;
5512         struct ieee80211_network *network = NULL;
5513         struct ipw_network_match match = {
5514                 .network = priv->assoc_network
5515         };
5516
5517         if ((priv->status & STATUS_ASSOCIATED) &&
5518             (priv->ieee->iw_mode == IW_MODE_ADHOC)) {
5519                 /* First pass through ROAM process -- look for a better
5520                  * network */
5521                 unsigned long flags;
5522
5523                 spin_lock_irqsave(&priv->ieee->lock, flags);
5524                 list_for_each_entry(network, &priv->ieee->network_list, list) {
5525                         if (network != priv->assoc_network)
5526                                 ipw_find_adhoc_network(priv, &match, network,
5527                                                        1);
5528                 }
5529                 spin_unlock_irqrestore(&priv->ieee->lock, flags);
5530
5531                 if (match.network == priv->assoc_network) {
5532                         IPW_DEBUG_MERGE("No better ADHOC in this network to "
5533                                         "merge to.\n");
5534                         return;
5535                 }
5536
5537                 mutex_lock(&priv->mutex);
5538                 if ((priv->ieee->iw_mode == IW_MODE_ADHOC)) {
5539                         IPW_DEBUG_MERGE("remove network %s\n",
5540                                         escape_essid(priv->essid,
5541                                                      priv->essid_len));
5542                         ipw_remove_current_network(priv);
5543                 }
5544
5545                 ipw_disassociate(priv);
5546                 priv->assoc_network = match.network;
5547                 mutex_unlock(&priv->mutex);
5548                 return;
5549         }
5550 }
5551
5552 static int ipw_best_network(struct ipw_priv *priv,
5553                             struct ipw_network_match *match,
5554                             struct ieee80211_network *network, int roaming)
5555 {
5556         struct ipw_supported_rates rates;
5557
5558         /* Verify that this network's capability is compatible with the
5559          * current mode (AdHoc or Infrastructure) */
5560         if ((priv->ieee->iw_mode == IW_MODE_INFRA &&
5561              !(network->capability & WLAN_CAPABILITY_ESS)) ||
5562             (priv->ieee->iw_mode == IW_MODE_ADHOC &&
5563              !(network->capability & WLAN_CAPABILITY_IBSS))) {
5564                 IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded due to "
5565                                 "capability mismatch.\n",
5566                                 escape_essid(network->ssid, network->ssid_len),
5567                                 MAC_ARG(network->bssid));
5568                 return 0;
5569         }
5570
5571         /* If we do not have an ESSID for this AP, we can not associate with
5572          * it */
5573         if (network->flags & NETWORK_EMPTY_ESSID) {
5574                 IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded "
5575                                 "because of hidden ESSID.\n",
5576                                 escape_essid(network->ssid, network->ssid_len),
5577                                 MAC_ARG(network->bssid));
5578                 return 0;
5579         }
5580
5581         if (unlikely(roaming)) {
5582                 /* If we are roaming, then ensure check if this is a valid
5583                  * network to try and roam to */
5584                 if ((network->ssid_len != match->network->ssid_len) ||
5585                     memcmp(network->ssid, match->network->ssid,
5586                            network->ssid_len)) {
5587                         IPW_DEBUG_ASSOC("Netowrk '%s (" MAC_FMT ")' excluded "
5588                                         "because of non-network ESSID.\n",
5589                                         escape_essid(network->ssid,
5590                                                      network->ssid_len),
5591                                         MAC_ARG(network->bssid));
5592                         return 0;
5593                 }
5594         } else {
5595                 /* If an ESSID has been configured then compare the broadcast
5596                  * ESSID to ours */
5597                 if ((priv->config & CFG_STATIC_ESSID) &&
5598                     ((network->ssid_len != priv->essid_len) ||
5599                      memcmp(network->ssid, priv->essid,
5600                             min(network->ssid_len, priv->essid_len)))) {
5601                         char escaped[IW_ESSID_MAX_SIZE * 2 + 1];
5602                         strncpy(escaped,
5603                                 escape_essid(network->ssid, network->ssid_len),
5604                                 sizeof(escaped));
5605                         IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded "
5606                                         "because of ESSID mismatch: '%s'.\n",
5607                                         escaped, MAC_ARG(network->bssid),
5608                                         escape_essid(priv->essid,
5609                                                      priv->essid_len));
5610                         return 0;
5611                 }
5612         }
5613
5614         /* If the old network rate is better than this one, don't bother
5615          * testing everything else. */
5616         if (match->network && match->network->stats.rssi > network->stats.rssi) {
5617                 char escaped[IW_ESSID_MAX_SIZE * 2 + 1];
5618                 strncpy(escaped,
5619                         escape_essid(network->ssid, network->ssid_len),
5620                         sizeof(escaped));
5621                 IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded because "
5622                                 "'%s (" MAC_FMT ")' has a stronger signal.\n",
5623                                 escaped, MAC_ARG(network->bssid),
5624                                 escape_essid(match->network->ssid,
5625                                              match->network->ssid_len),
5626                                 MAC_ARG(match->network->bssid));
5627                 return 0;
5628         }
5629
5630         /* If this network has already had an association attempt within the
5631          * last 3 seconds, do not try and associate again... */
5632         if (network->last_associate &&
5633             time_after(network->last_associate + (HZ * 3UL), jiffies)) {
5634                 IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded "
5635                                 "because of storming (%ums since last "
5636                                 "assoc attempt).\n",
5637                                 escape_essid(network->ssid, network->ssid_len),
5638                                 MAC_ARG(network->bssid),
5639                                 jiffies_to_msecs(jiffies -
5640                                                  network->last_associate));
5641                 return 0;
5642         }
5643
5644         /* Now go through and see if the requested network is valid... */
5645         if (priv->ieee->scan_age != 0 &&
5646             time_after(jiffies, network->last_scanned + priv->ieee->scan_age)) {
5647                 IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded "
5648                                 "because of age: %ums.\n",
5649                                 escape_essid(network->ssid, network->ssid_len),
5650                                 MAC_ARG(network->bssid),
5651                                 jiffies_to_msecs(jiffies -
5652                                                  network->last_scanned));
5653                 return 0;
5654         }
5655
5656         if ((priv->config & CFG_STATIC_CHANNEL) &&
5657             (network->channel != priv->channel)) {
5658                 IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded "
5659                                 "because of channel mismatch: %d != %d.\n",
5660                                 escape_essid(network->ssid, network->ssid_len),
5661                                 MAC_ARG(network->bssid),
5662                                 network->channel, priv->channel);
5663                 return 0;
5664         }
5665
5666         /* Verify privacy compatability */
5667         if (((priv->capability & CAP_PRIVACY_ON) ? 1 : 0) !=
5668             ((network->capability & WLAN_CAPABILITY_PRIVACY) ? 1 : 0)) {
5669                 IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded "
5670                                 "because of privacy mismatch: %s != %s.\n",
5671                                 escape_essid(network->ssid, network->ssid_len),
5672                                 MAC_ARG(network->bssid),
5673                                 priv->capability & CAP_PRIVACY_ON ? "on" :
5674                                 "off",
5675                                 network->capability &
5676                                 WLAN_CAPABILITY_PRIVACY ? "on" : "off");
5677                 return 0;
5678         }
5679
5680         if ((priv->config & CFG_STATIC_BSSID) &&
5681             memcmp(network->bssid, priv->bssid, ETH_ALEN)) {
5682                 IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded "
5683                                 "because of BSSID mismatch: " MAC_FMT ".\n",
5684                                 escape_essid(network->ssid, network->ssid_len),
5685                                 MAC_ARG(network->bssid), MAC_ARG(priv->bssid));
5686                 return 0;
5687         }
5688
5689         /* Filter out any incompatible freq / mode combinations */
5690         if (!ieee80211_is_valid_mode(priv->ieee, network->mode)) {
5691                 IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded "
5692                                 "because of invalid frequency/mode "
5693                                 "combination.\n",
5694                                 escape_essid(network->ssid, network->ssid_len),
5695                                 MAC_ARG(network->bssid));
5696                 return 0;
5697         }
5698
5699         /* Filter out invalid channel in current GEO */
5700         if (!ieee80211_is_valid_channel(priv->ieee, network->channel)) {
5701                 IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded "
5702                                 "because of invalid channel in current GEO\n",
5703                                 escape_essid(network->ssid, network->ssid_len),
5704                                 MAC_ARG(network->bssid));
5705                 return 0;
5706         }
5707
5708         /* Ensure that the rates supported by the driver are compatible with
5709          * this AP, including verification of basic rates (mandatory) */
5710         if (!ipw_compatible_rates(priv, network, &rates)) {
5711                 IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded "
5712                                 "because configured rate mask excludes "
5713                                 "AP mandatory rate.\n",
5714                                 escape_essid(network->ssid, network->ssid_len),
5715                                 MAC_ARG(network->bssid));
5716                 return 0;
5717         }
5718
5719         if (rates.num_rates == 0) {
5720                 IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded "
5721                                 "because of no compatible rates.\n",
5722                                 escape_essid(network->ssid, network->ssid_len),
5723                                 MAC_ARG(network->bssid));
5724                 return 0;
5725         }
5726
5727         /* TODO: Perform any further minimal comparititive tests.  We do not
5728          * want to put too much policy logic here; intelligent scan selection
5729          * should occur within a generic IEEE 802.11 user space tool.  */
5730
5731         /* Set up 'new' AP to this network */
5732         ipw_copy_rates(&match->rates, &rates);
5733         match->network = network;
5734
5735         IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' is a viable match.\n",
5736                         escape_essid(network->ssid, network->ssid_len),
5737                         MAC_ARG(network->bssid));
5738
5739         return 1;
5740 }
5741
5742 static void ipw_adhoc_create(struct ipw_priv *priv,
5743                              struct ieee80211_network *network)
5744 {
5745         const struct ieee80211_geo *geo = ieee80211_get_geo(priv->ieee);
5746         int i;
5747
5748         /*
5749          * For the purposes of scanning, we can set our wireless mode
5750          * to trigger scans across combinations of bands, but when it
5751          * comes to creating a new ad-hoc network, we have tell the FW
5752          * exactly which band to use.
5753          *
5754          * We also have the possibility of an invalid channel for the
5755          * chossen band.  Attempting to create a new ad-hoc network
5756          * with an invalid channel for wireless mode will trigger a
5757          * FW fatal error.
5758          *
5759          */
5760         switch (ieee80211_is_valid_channel(priv->ieee, priv->channel)) {
5761         case IEEE80211_52GHZ_BAND:
5762                 network->mode = IEEE_A;
5763                 i = ieee80211_channel_to_index(priv->ieee, priv->channel);
5764                 BUG_ON(i == -1);
5765                 if (geo->a[i].flags & IEEE80211_CH_PASSIVE_ONLY) {
5766                         IPW_WARNING("Overriding invalid channel\n");
5767                         priv->channel = geo->a[0].channel;
5768                 }
5769                 break;
5770
5771         case IEEE80211_24GHZ_BAND:
5772                 if (priv->ieee->mode & IEEE_G)
5773                         network->mode = IEEE_G;
5774                 else
5775                         network->mode = IEEE_B;
5776                 i = ieee80211_channel_to_index(priv->ieee, priv->channel);
5777                 BUG_ON(i == -1);
5778                 if (geo->bg[i].flags & IEEE80211_CH_PASSIVE_ONLY) {
5779                         IPW_WARNING("Overriding invalid channel\n");
5780                         priv->channel = geo->bg[0].channel;
5781                 }
5782                 break;
5783
5784         default:
5785                 IPW_WARNING("Overriding invalid channel\n");
5786                 if (priv->ieee->mode & IEEE_A) {
5787                         network->mode = IEEE_A;
5788                         priv->channel = geo->a[0].channel;
5789                 } else if (priv->ieee->mode & IEEE_G) {
5790                         network->mode = IEEE_G;
5791                         priv->channel = geo->bg[0].channel;
5792                 } else {
5793                         network->mode = IEEE_B;
5794                         priv->channel = geo->bg[0].channel;
5795                 }
5796                 break;
5797         }
5798
5799         network->channel = priv->channel;
5800         priv->config |= CFG_ADHOC_PERSIST;
5801         ipw_create_bssid(priv, network->bssid);
5802         network->ssid_len = priv->essid_len;
5803         memcpy(network->ssid, priv->essid, priv->essid_len);
5804         memset(&network->stats, 0, sizeof(network->stats));
5805         network->capability = WLAN_CAPABILITY_IBSS;
5806         if (!(priv->config & CFG_PREAMBLE_LONG))
5807                 network->capability |= WLAN_CAPABILITY_SHORT_PREAMBLE;
5808         if (priv->capability & CAP_PRIVACY_ON)
5809                 network->capability |= WLAN_CAPABILITY_PRIVACY;
5810         network->rates_len = min(priv->rates.num_rates, MAX_RATES_LENGTH);
5811         memcpy(network->rates, priv->rates.supported_rates, network->rates_len);
5812         network->rates_ex_len = priv->rates.num_rates - network->rates_len;
5813         memcpy(network->rates_ex,
5814                &priv->rates.supported_rates[network->rates_len],
5815                network->rates_ex_len);
5816         network->last_scanned = 0;
5817         network->flags = 0;
5818         network->last_associate = 0;
5819         network->time_stamp[0] = 0;
5820         network->time_stamp[1] = 0;
5821         network->beacon_interval = 100; /* Default */
5822         network->listen_interval = 10;  /* Default */
5823         network->atim_window = 0;       /* Default */
5824         network->wpa_ie_len = 0;
5825         network->rsn_ie_len = 0;
5826 }
5827
5828 static void ipw_send_tgi_tx_key(struct ipw_priv *priv, int type, int index)
5829 {
5830         struct ipw_tgi_tx_key key;
5831
5832         if (!(priv->ieee->sec.flags & (1 << index)))
5833                 return;
5834
5835         key.key_id = index;
5836         memcpy(key.key, priv->ieee->sec.keys[index], SCM_TEMPORAL_KEY_LENGTH);
5837         key.security_type = type;
5838         key.station_index = 0;  /* always 0 for BSS */
5839         key.flags = 0;
5840         /* 0 for new key; previous value of counter (after fatal error) */
5841         key.tx_counter[0] = 0;
5842         key.tx_counter[1] = 0;
5843
5844         ipw_send_cmd_pdu(priv, IPW_CMD_TGI_TX_KEY, sizeof(key), &key);
5845 }
5846
5847 static void ipw_send_wep_keys(struct ipw_priv *priv, int type)
5848 {
5849         struct ipw_wep_key key;
5850         int i;
5851
5852         key.cmd_id = DINO_CMD_WEP_KEY;
5853         key.seq_num = 0;
5854
5855         /* Note: AES keys cannot be set for multiple times.
5856          * Only set it at the first time. */
5857         for (i = 0; i < 4; i++) {
5858                 key.key_index = i | type;
5859                 if (!(priv->ieee->sec.flags & (1 << i))) {
5860                         key.key_size = 0;
5861                         continue;
5862                 }
5863
5864                 key.key_size = priv->ieee->sec.key_sizes[i];
5865                 memcpy(key.key, priv->ieee->sec.keys[i], key.key_size);
5866
5867                 ipw_send_cmd_pdu(priv, IPW_CMD_WEP_KEY, sizeof(key), &key);
5868         }
5869 }
5870
5871 static void ipw_set_hw_decrypt_unicast(struct ipw_priv *priv, int level)
5872 {
5873         if (priv->ieee->host_encrypt)
5874                 return;
5875
5876         switch (level) {
5877         case SEC_LEVEL_3:
5878                 priv->sys_config.disable_unicast_decryption = 0;
5879                 priv->ieee->host_decrypt = 0;
5880                 break;
5881         case SEC_LEVEL_2:
5882                 priv->sys_config.disable_unicast_decryption = 1;
5883                 priv->ieee->host_decrypt = 1;
5884                 break;
5885         case SEC_LEVEL_1:
5886                 priv->sys_config.disable_unicast_decryption = 0;
5887                 priv->ieee->host_decrypt = 0;
5888                 break;
5889         case SEC_LEVEL_0:
5890                 priv->sys_config.disable_unicast_decryption = 1;
5891                 break;
5892         default:
5893                 break;
5894         }
5895 }
5896
5897 static void ipw_set_hw_decrypt_multicast(struct ipw_priv *priv, int level)
5898 {
5899         if (priv->ieee->host_encrypt)
5900                 return;
5901
5902         switch (level) {
5903         case SEC_LEVEL_3:
5904                 priv->sys_config.disable_multicast_decryption = 0;
5905                 break;
5906         case SEC_LEVEL_2:
5907                 priv->sys_config.disable_multicast_decryption = 1;
5908                 break;
5909         case SEC_LEVEL_1:
5910                 priv->sys_config.disable_multicast_decryption = 0;
5911                 break;
5912         case SEC_LEVEL_0:
5913                 priv->sys_config.disable_multicast_decryption = 1;
5914                 break;
5915         default:
5916                 break;
5917         }
5918 }
5919
5920 static void ipw_set_hwcrypto_keys(struct ipw_priv *priv)
5921 {
5922         switch (priv->ieee->sec.level) {
5923         case SEC_LEVEL_3:
5924                 if (priv->ieee->sec.flags & SEC_ACTIVE_KEY)
5925                         ipw_send_tgi_tx_key(priv,
5926                                             DCT_FLAG_EXT_SECURITY_CCM,
5927                                             priv->ieee->sec.active_key);
5928
5929                 if (!priv->ieee->host_mc_decrypt)
5930                         ipw_send_wep_keys(priv, DCW_WEP_KEY_SEC_TYPE_CCM);
5931                 break;
5932         case SEC_LEVEL_2:
5933                 if (priv->ieee->sec.flags & SEC_ACTIVE_KEY)
5934                         ipw_send_tgi_tx_key(priv,
5935                                             DCT_FLAG_EXT_SECURITY_TKIP,
5936                                             priv->ieee->sec.active_key);
5937                 break;
5938         case SEC_LEVEL_1:
5939                 ipw_send_wep_keys(priv, DCW_WEP_KEY_SEC_TYPE_WEP);
5940                 ipw_set_hw_decrypt_unicast(priv, priv->ieee->sec.level);
5941                 ipw_set_hw_decrypt_multicast(priv, priv->ieee->sec.level);
5942                 break;
5943         case SEC_LEVEL_0:
5944         default:
5945                 break;
5946         }
5947 }
5948
5949 static void ipw_adhoc_check(void *data)
5950 {
5951         struct ipw_priv *priv = data;
5952
5953         if (priv->missed_adhoc_beacons++ > priv->disassociate_threshold &&
5954             !(priv->config & CFG_ADHOC_PERSIST)) {
5955                 IPW_DEBUG(IPW_DL_INFO | IPW_DL_NOTIF |
5956                           IPW_DL_STATE | IPW_DL_ASSOC,
5957                           "Missed beacon: %d - disassociate\n",
5958                           priv->missed_adhoc_beacons);
5959                 ipw_remove_current_network(priv);
5960                 ipw_disassociate(priv);
5961                 return;
5962         }
5963
5964         queue_delayed_work(priv->workqueue, &priv->adhoc_check,
5965                            priv->assoc_request.beacon_interval);
5966 }
5967
5968 static void ipw_bg_adhoc_check(void *data)
5969 {
5970         struct ipw_priv *priv = data;
5971         mutex_lock(&priv->mutex);
5972         ipw_adhoc_check(data);
5973         mutex_unlock(&priv->mutex);
5974 }
5975
5976 #ifdef CONFIG_IPW2200_DEBUG
5977 static void ipw_debug_config(struct ipw_priv *priv)
5978 {
5979         IPW_DEBUG_INFO("Scan completed, no valid APs matched "
5980                        "[CFG 0x%08X]\n", priv->config);
5981         if (priv->config & CFG_STATIC_CHANNEL)
5982                 IPW_DEBUG_INFO("Channel locked to %d\n", priv->channel);
5983         else
5984                 IPW_DEBUG_INFO("Channel unlocked.\n");
5985         if (priv->config & CFG_STATIC_ESSID)
5986                 IPW_DEBUG_INFO("ESSID locked to '%s'\n",
5987                                escape_essid(priv->essid, priv->essid_len));
5988         else
5989                 IPW_DEBUG_INFO("ESSID unlocked.\n");
5990         if (priv->config & CFG_STATIC_BSSID)
5991                 IPW_DEBUG_INFO("BSSID locked to " MAC_FMT "\n",
5992                                MAC_ARG(priv->bssid));
5993         else
5994                 IPW_DEBUG_INFO("BSSID unlocked.\n");
5995         if (priv->capability & CAP_PRIVACY_ON)
5996                 IPW_DEBUG_INFO("PRIVACY on\n");
5997         else
5998                 IPW_DEBUG_INFO("PRIVACY off\n");
5999         IPW_DEBUG_INFO("RATE MASK: 0x%08X\n", priv->rates_mask);
6000 }
6001 #else
6002 #define ipw_debug_config(x) do {} while (0)
6003 #endif
6004
6005 static void ipw_set_fixed_rate(struct ipw_priv *priv, int mode)
6006 {
6007         /* TODO: Verify that this works... */
6008         struct ipw_fixed_rate fr = {
6009                 .tx_rates = priv->rates_mask
6010         };
6011         u32 reg;
6012         u16 mask = 0;
6013
6014         /* Identify 'current FW band' and match it with the fixed
6015          * Tx rates */
6016
6017         switch (priv->ieee->freq_band) {
6018         case IEEE80211_52GHZ_BAND:      /* A only */
6019                 /* IEEE_A */
6020                 if (priv->rates_mask & ~IEEE80211_OFDM_RATES_MASK) {
6021                         /* Invalid fixed rate mask */
6022                         IPW_DEBUG_WX
6023                             ("invalid fixed rate mask in ipw_set_fixed_rate\n");
6024                         fr.tx_rates = 0;
6025                         break;
6026                 }
6027
6028                 fr.tx_rates >>= IEEE80211_OFDM_SHIFT_MASK_A;
6029                 break;
6030
6031         default:                /* 2.4Ghz or Mixed */
6032                 /* IEEE_B */
6033                 if (mode == IEEE_B) {
6034                         if (fr.tx_rates & ~IEEE80211_CCK_RATES_MASK) {
6035                                 /* Invalid fixed rate mask */
6036                                 IPW_DEBUG_WX
6037                                     ("invalid fixed rate mask in ipw_set_fixed_rate\n");
6038                                 fr.tx_rates = 0;
6039                         }
6040                         break;
6041                 }
6042
6043                 /* IEEE_G */
6044                 if (fr.tx_rates & ~(IEEE80211_CCK_RATES_MASK |
6045                                     IEEE80211_OFDM_RATES_MASK)) {
6046                         /* Invalid fixed rate mask */
6047                         IPW_DEBUG_WX
6048                             ("invalid fixed rate mask in ipw_set_fixed_rate\n");
6049                         fr.tx_rates = 0;
6050                         break;
6051                 }
6052
6053                 if (IEEE80211_OFDM_RATE_6MB_MASK & fr.tx_rates) {
6054                         mask |= (IEEE80211_OFDM_RATE_6MB_MASK >> 1);
6055                         fr.tx_rates &= ~IEEE80211_OFDM_RATE_6MB_MASK;
6056                 }
6057
6058                 if (IEEE80211_OFDM_RATE_9MB_MASK & fr.tx_rates) {
6059                         mask |= (IEEE80211_OFDM_RATE_9MB_MASK >> 1);
6060                         fr.tx_rates &= ~IEEE80211_OFDM_RATE_9MB_MASK;
6061                 }
6062
6063                 if (IEEE80211_OFDM_RATE_12MB_MASK & fr.tx_rates) {
6064                         mask |= (IEEE80211_OFDM_RATE_12MB_MASK >> 1);
6065                         fr.tx_rates &= ~IEEE80211_OFDM_RATE_12MB_MASK;
6066                 }
6067
6068                 fr.tx_rates |= mask;
6069                 break;
6070         }
6071
6072         reg = ipw_read32(priv, IPW_MEM_FIXED_OVERRIDE);
6073         ipw_write_reg32(priv, reg, *(u32 *) & fr);
6074 }
6075
6076 static void ipw_abort_scan(struct ipw_priv *priv)
6077 {
6078         int err;
6079
6080         if (priv->status & STATUS_SCAN_ABORTING) {
6081                 IPW_DEBUG_HC("Ignoring concurrent scan abort request.\n");
6082                 return;
6083         }
6084         priv->status |= STATUS_SCAN_ABORTING;
6085
6086         err = ipw_send_scan_abort(priv);
6087         if (err)
6088                 IPW_DEBUG_HC("Request to abort scan failed.\n");
6089 }
6090
6091 static void ipw_add_scan_channels(struct ipw_priv *priv,
6092                                   struct ipw_scan_request_ext *scan,
6093                                   int scan_type)
6094 {
6095         int channel_index = 0;
6096         const struct ieee80211_geo *geo;
6097         int i;
6098
6099         geo = ieee80211_get_geo(priv->ieee);
6100
6101         if (priv->ieee->freq_band & IEEE80211_52GHZ_BAND) {
6102                 int start = channel_index;
6103                 for (i = 0; i < geo->a_channels; i++) {
6104                         if ((priv->status & STATUS_ASSOCIATED) &&
6105                             geo->a[i].channel == priv->channel)
6106                                 continue;
6107                         channel_index++;
6108                         scan->channels_list[channel_index] = geo->a[i].channel;
6109                         ipw_set_scan_type(scan, channel_index,
6110                                           geo->a[i].
6111                                           flags & IEEE80211_CH_PASSIVE_ONLY ?
6112                                           IPW_SCAN_PASSIVE_FULL_DWELL_SCAN :
6113                                           scan_type);
6114                 }
6115
6116                 if (start != channel_index) {
6117                         scan->channels_list[start] = (u8) (IPW_A_MODE << 6) |
6118                             (channel_index - start);
6119                         channel_index++;
6120                 }
6121         }
6122
6123         if (priv->ieee->freq_band & IEEE80211_24GHZ_BAND) {
6124                 int start = channel_index;
6125                 if (priv->config & CFG_SPEED_SCAN) {
6126                         int index;
6127                         u8 channels[IEEE80211_24GHZ_CHANNELS] = {
6128                                 /* nop out the list */
6129                                 [0] = 0
6130                         };
6131
6132                         u8 channel;
6133                         while (channel_index < IPW_SCAN_CHANNELS) {
6134                                 channel =
6135                                     priv->speed_scan[priv->speed_scan_pos];
6136                                 if (channel == 0) {
6137                                         priv->speed_scan_pos = 0;
6138                                         channel = priv->speed_scan[0];
6139                                 }
6140                                 if ((priv->status & STATUS_ASSOCIATED) &&
6141                                     channel == priv->channel) {
6142                                         priv->speed_scan_pos++;
6143                                         continue;
6144                                 }
6145
6146                                 /* If this channel has already been
6147                                  * added in scan, break from loop
6148                                  * and this will be the first channel
6149                                  * in the next scan.
6150                                  */
6151                                 if (channels[channel - 1] != 0)
6152                                         break;
6153
6154                                 channels[channel - 1] = 1;
6155                                 priv->speed_scan_pos++;
6156                                 channel_index++;
6157                                 scan->channels_list[channel_index] = channel;
6158                                 index =
6159                                     ieee80211_channel_to_index(priv->ieee, channel);
6160                                 ipw_set_scan_type(scan, channel_index,
6161                                                   geo->bg[index].
6162                                                   flags &
6163                                                   IEEE80211_CH_PASSIVE_ONLY ?
6164                                                   IPW_SCAN_PASSIVE_FULL_DWELL_SCAN
6165                                                   : scan_type);
6166                         }
6167                 } else {
6168                         for (i = 0; i < geo->bg_channels; i++) {
6169                                 if ((priv->status & STATUS_ASSOCIATED) &&
6170                                     geo->bg[i].channel == priv->channel)
6171                                         continue;
6172                                 channel_index++;
6173                                 scan->channels_list[channel_index] =
6174                                     geo->bg[i].channel;
6175                                 ipw_set_scan_type(scan, channel_index,
6176                                                   geo->bg[i].
6177                                                   flags &
6178                                                   IEEE80211_CH_PASSIVE_ONLY ?
6179                                                   IPW_SCAN_PASSIVE_FULL_DWELL_SCAN
6180                                                   : scan_type);
6181                         }
6182                 }
6183
6184                 if (start != channel_index) {
6185                         scan->channels_list[start] = (u8) (IPW_B_MODE << 6) |
6186                             (channel_index - start);
6187                 }
6188         }
6189 }
6190
6191 static int ipw_request_scan(struct ipw_priv *priv)
6192 {
6193         struct ipw_scan_request_ext scan;
6194         int err = 0, scan_type;
6195
6196         if (!(priv->status & STATUS_INIT) ||
6197             (priv->status & STATUS_EXIT_PENDING))
6198                 return 0;
6199
6200         mutex_lock(&priv->mutex);
6201
6202         if (priv->status & STATUS_SCANNING) {
6203                 IPW_DEBUG_HC("Concurrent scan requested.  Ignoring.\n");
6204                 priv->status |= STATUS_SCAN_PENDING;
6205                 goto done;
6206         }
6207
6208         if (!(priv->status & STATUS_SCAN_FORCED) &&
6209             priv->status & STATUS_SCAN_ABORTING) {
6210                 IPW_DEBUG_HC("Scan request while abort pending.  Queuing.\n");
6211                 priv->status |= STATUS_SCAN_PENDING;
6212                 goto done;
6213         }
6214
6215         if (priv->status & STATUS_RF_KILL_MASK) {
6216                 IPW_DEBUG_HC("Aborting scan due to RF Kill activation\n");
6217                 priv->status |= STATUS_SCAN_PENDING;
6218                 goto done;
6219         }
6220
6221         memset(&scan, 0, sizeof(scan));
6222
6223         if (priv->config & CFG_SPEED_SCAN)
6224                 scan.dwell_time[IPW_SCAN_ACTIVE_BROADCAST_SCAN] =
6225                     cpu_to_le16(30);
6226         else
6227                 scan.dwell_time[IPW_SCAN_ACTIVE_BROADCAST_SCAN] =
6228                     cpu_to_le16(20);
6229
6230         scan.dwell_time[IPW_SCAN_ACTIVE_BROADCAST_AND_DIRECT_SCAN] =
6231             cpu_to_le16(20);
6232         scan.dwell_time[IPW_SCAN_PASSIVE_FULL_DWELL_SCAN] = cpu_to_le16(120);
6233
6234         scan.full_scan_index = cpu_to_le32(ieee80211_get_scans(priv->ieee));
6235
6236 #ifdef CONFIG_IPW2200_MONITOR
6237         if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
6238                 u8 channel;
6239                 u8 band = 0;
6240
6241                 switch (ieee80211_is_valid_channel(priv->ieee, priv->channel)) {
6242                 case IEEE80211_52GHZ_BAND:
6243                         band = (u8) (IPW_A_MODE << 6) | 1;
6244                         channel = priv->channel;
6245                         break;
6246
6247                 case IEEE80211_24GHZ_BAND:
6248                         band = (u8) (IPW_B_MODE << 6) | 1;
6249                         channel = priv->channel;
6250                         break;
6251
6252                 default:
6253                         band = (u8) (IPW_B_MODE << 6) | 1;
6254                         channel = 9;
6255                         break;
6256                 }
6257
6258                 scan.channels_list[0] = band;
6259                 scan.channels_list[1] = channel;
6260                 ipw_set_scan_type(&scan, 1, IPW_SCAN_PASSIVE_FULL_DWELL_SCAN);
6261
6262                 /* NOTE:  The card will sit on this channel for this time
6263                  * period.  Scan aborts are timing sensitive and frequently
6264                  * result in firmware restarts.  As such, it is best to
6265                  * set a small dwell_time here and just keep re-issuing
6266                  * scans.  Otherwise fast channel hopping will not actually
6267                  * hop channels.
6268                  *
6269                  * TODO: Move SPEED SCAN support to all modes and bands */
6270                 scan.dwell_time[IPW_SCAN_PASSIVE_FULL_DWELL_SCAN] =
6271                     cpu_to_le16(2000);
6272         } else {
6273 #endif                          /* CONFIG_IPW2200_MONITOR */
6274                 /* If we are roaming, then make this a directed scan for the
6275                  * current network.  Otherwise, ensure that every other scan
6276                  * is a fast channel hop scan */
6277                 if ((priv->status & STATUS_ROAMING)
6278                     || (!(priv->status & STATUS_ASSOCIATED)
6279                         && (priv->config & CFG_STATIC_ESSID)
6280                         && (le32_to_cpu(scan.full_scan_index) % 2))) {
6281                         err = ipw_send_ssid(priv, priv->essid, priv->essid_len);
6282                         if (err) {
6283                                 IPW_DEBUG_HC("Attempt to send SSID command "
6284                                              "failed.\n");
6285                                 goto done;
6286                         }
6287
6288                         scan_type = IPW_SCAN_ACTIVE_BROADCAST_AND_DIRECT_SCAN;
6289                 } else
6290                         scan_type = IPW_SCAN_ACTIVE_BROADCAST_SCAN;
6291
6292                 ipw_add_scan_channels(priv, &scan, scan_type);
6293 #ifdef CONFIG_IPW2200_MONITOR
6294         }
6295 #endif
6296
6297         err = ipw_send_scan_request_ext(priv, &scan);
6298         if (err) {
6299                 IPW_DEBUG_HC("Sending scan command failed: %08X\n", err);
6300                 goto done;
6301         }
6302
6303         priv->status |= STATUS_SCANNING;
6304         priv->status &= ~STATUS_SCAN_PENDING;
6305         queue_delayed_work(priv->workqueue, &priv->scan_check,
6306                            IPW_SCAN_CHECK_WATCHDOG);
6307       done:
6308         mutex_unlock(&priv->mutex);
6309         return err;
6310 }
6311
6312 static void ipw_bg_abort_scan(void *data)
6313 {
6314         struct ipw_priv *priv = data;
6315         mutex_lock(&priv->mutex);
6316         ipw_abort_scan(data);
6317         mutex_unlock(&priv->mutex);
6318 }
6319
6320 static int ipw_wpa_enable(struct ipw_priv *priv, int value)
6321 {
6322         /* This is called when wpa_supplicant loads and closes the driver
6323          * interface. */
6324         priv->ieee->wpa_enabled = value;
6325         return 0;
6326 }
6327
6328 static int ipw_wpa_set_auth_algs(struct ipw_priv *priv, int value)
6329 {
6330         struct ieee80211_device *ieee = priv->ieee;
6331         struct ieee80211_security sec = {
6332                 .flags = SEC_AUTH_MODE,
6333         };
6334         int ret = 0;
6335
6336         if (value & IW_AUTH_ALG_SHARED_KEY) {
6337                 sec.auth_mode = WLAN_AUTH_SHARED_KEY;
6338                 ieee->open_wep = 0;
6339         } else if (value & IW_AUTH_ALG_OPEN_SYSTEM) {
6340                 sec.auth_mode = WLAN_AUTH_OPEN;
6341                 ieee->open_wep = 1;
6342         } else if (value & IW_AUTH_ALG_LEAP) {
6343                 sec.auth_mode = WLAN_AUTH_LEAP;
6344                 ieee->open_wep = 1;
6345         } else
6346                 return -EINVAL;
6347
6348         if (ieee->set_security)
6349                 ieee->set_security(ieee->dev, &sec);
6350         else
6351                 ret = -EOPNOTSUPP;
6352
6353         return ret;
6354 }
6355
6356 static void ipw_wpa_assoc_frame(struct ipw_priv *priv, char *wpa_ie,
6357                                 int wpa_ie_len)
6358 {
6359         /* make sure WPA is enabled */
6360         ipw_wpa_enable(priv, 1);
6361 }
6362
6363 static int ipw_set_rsn_capa(struct ipw_priv *priv,
6364                             char *capabilities, int length)
6365 {
6366         IPW_DEBUG_HC("HOST_CMD_RSN_CAPABILITIES\n");
6367
6368         return ipw_send_cmd_pdu(priv, IPW_CMD_RSN_CAPABILITIES, length,
6369                                 capabilities);
6370 }
6371
6372 /*
6373  * WE-18 support
6374  */
6375
6376 /* SIOCSIWGENIE */
6377 static int ipw_wx_set_genie(struct net_device *dev,
6378                             struct iw_request_info *info,
6379                             union iwreq_data *wrqu, char *extra)
6380 {
6381         struct ipw_priv *priv = ieee80211_priv(dev);
6382         struct ieee80211_device *ieee = priv->ieee;
6383         u8 *buf;
6384         int err = 0;
6385
6386         if (wrqu->data.length > MAX_WPA_IE_LEN ||
6387             (wrqu->data.length && extra == NULL))
6388                 return -EINVAL;
6389
6390         //mutex_lock(&priv->mutex);
6391
6392         //if (!ieee->wpa_enabled) {
6393         //      err = -EOPNOTSUPP;
6394         //      goto out;
6395         //}
6396
6397         if (wrqu->data.length) {
6398                 buf = kmalloc(wrqu->data.length, GFP_KERNEL);
6399                 if (buf == NULL) {
6400                         err = -ENOMEM;
6401                         goto out;
6402                 }
6403
6404                 memcpy(buf, extra, wrqu->data.length);
6405                 kfree(ieee->wpa_ie);
6406                 ieee->wpa_ie = buf;
6407                 ieee->wpa_ie_len = wrqu->data.length;
6408         } else {
6409                 kfree(ieee->wpa_ie);
6410                 ieee->wpa_ie = NULL;
6411                 ieee->wpa_ie_len = 0;
6412         }
6413
6414         ipw_wpa_assoc_frame(priv, ieee->wpa_ie, ieee->wpa_ie_len);
6415       out:
6416         //mutex_unlock(&priv->mutex);
6417         return err;
6418 }
6419
6420 /* SIOCGIWGENIE */
6421 static int ipw_wx_get_genie(struct net_device *dev,
6422                             struct iw_request_info *info,
6423                             union iwreq_data *wrqu, char *extra)
6424 {
6425         struct ipw_priv *priv = ieee80211_priv(dev);
6426         struct ieee80211_device *ieee = priv->ieee;
6427         int err = 0;
6428
6429         //mutex_lock(&priv->mutex);
6430
6431         //if (!ieee->wpa_enabled) {
6432         //      err = -EOPNOTSUPP;
6433         //      goto out;
6434         //}
6435
6436         if (ieee->wpa_ie_len == 0 || ieee->wpa_ie == NULL) {
6437                 wrqu->data.length = 0;
6438                 goto out;
6439         }
6440
6441         if (wrqu->data.length < ieee->wpa_ie_len) {
6442                 err = -E2BIG;
6443                 goto out;
6444         }
6445
6446         wrqu->data.length = ieee->wpa_ie_len;
6447         memcpy(extra, ieee->wpa_ie, ieee->wpa_ie_len);
6448
6449       out:
6450         //mutex_unlock(&priv->mutex);
6451         return err;
6452 }
6453
6454 static int wext_cipher2level(int cipher)
6455 {
6456         switch (cipher) {
6457         case IW_AUTH_CIPHER_NONE:
6458                 return SEC_LEVEL_0;
6459         case IW_AUTH_CIPHER_WEP40:
6460         case IW_AUTH_CIPHER_WEP104:
6461                 return SEC_LEVEL_1;
6462         case IW_AUTH_CIPHER_TKIP:
6463                 return SEC_LEVEL_2;
6464         case IW_AUTH_CIPHER_CCMP:
6465                 return SEC_LEVEL_3;
6466         default:
6467                 return -1;
6468         }
6469 }
6470
6471 /* SIOCSIWAUTH */
6472 static int ipw_wx_set_auth(struct net_device *dev,
6473                            struct iw_request_info *info,
6474                            union iwreq_data *wrqu, char *extra)
6475 {
6476         struct ipw_priv *priv = ieee80211_priv(dev);
6477         struct ieee80211_device *ieee = priv->ieee;
6478         struct iw_param *param = &wrqu->param;
6479         struct ieee80211_crypt_data *crypt;
6480         unsigned long flags;
6481         int ret = 0;
6482
6483         switch (param->flags & IW_AUTH_INDEX) {
6484         case IW_AUTH_WPA_VERSION:
6485                 break;
6486         case IW_AUTH_CIPHER_PAIRWISE:
6487                 ipw_set_hw_decrypt_unicast(priv,
6488                                            wext_cipher2level(param->value));
6489                 break;
6490         case IW_AUTH_CIPHER_GROUP:
6491                 ipw_set_hw_decrypt_multicast(priv,
6492                                              wext_cipher2level(param->value));
6493                 break;
6494         case IW_AUTH_KEY_MGMT:
6495                 /*
6496                  * ipw2200 does not use these parameters
6497                  */
6498                 break;
6499
6500         case IW_AUTH_TKIP_COUNTERMEASURES:
6501                 crypt = priv->ieee->crypt[priv->ieee->tx_keyidx];
6502                 if (!crypt || !crypt->ops->set_flags || !crypt->ops->get_flags)
6503                         break;
6504
6505                 flags = crypt->ops->get_flags(crypt->priv);
6506
6507                 if (param->value)
6508                         flags |= IEEE80211_CRYPTO_TKIP_COUNTERMEASURES;
6509                 else
6510                         flags &= ~IEEE80211_CRYPTO_TKIP_COUNTERMEASURES;
6511
6512                 crypt->ops->set_flags(flags, crypt->priv);
6513
6514                 break;
6515
6516         case IW_AUTH_DROP_UNENCRYPTED:{
6517                         /* HACK:
6518                          *
6519                          * wpa_supplicant calls set_wpa_enabled when the driver
6520                          * is loaded and unloaded, regardless of if WPA is being
6521                          * used.  No other calls are made which can be used to
6522                          * determine if encryption will be used or not prior to
6523                          * association being expected.  If encryption is not being
6524                          * used, drop_unencrypted is set to false, else true -- we
6525                          * can use this to determine if the CAP_PRIVACY_ON bit should
6526                          * be set.
6527                          */
6528                         struct ieee80211_security sec = {
6529                                 .flags = SEC_ENABLED,
6530                                 .enabled = param->value,
6531                         };
6532                         priv->ieee->drop_unencrypted = param->value;
6533                         /* We only change SEC_LEVEL for open mode. Others
6534                          * are set by ipw_wpa_set_encryption.
6535                          */
6536                         if (!param->value) {
6537                                 sec.flags |= SEC_LEVEL;
6538                                 sec.level = SEC_LEVEL_0;
6539                         } else {
6540                                 sec.flags |= SEC_LEVEL;
6541                                 sec.level = SEC_LEVEL_1;
6542                         }
6543                         if (priv->ieee->set_security)
6544                                 priv->ieee->set_security(priv->ieee->dev, &sec);
6545                         break;
6546                 }
6547
6548         case IW_AUTH_80211_AUTH_ALG:
6549                 ret = ipw_wpa_set_auth_algs(priv, param->value);
6550                 break;
6551
6552         case IW_AUTH_WPA_ENABLED:
6553                 ret = ipw_wpa_enable(priv, param->value);
6554                 ipw_disassociate(priv);
6555                 break;
6556
6557         case IW_AUTH_RX_UNENCRYPTED_EAPOL:
6558                 ieee->ieee802_1x = param->value;
6559                 break;
6560
6561                 //case IW_AUTH_ROAMING_CONTROL:
6562         case IW_AUTH_PRIVACY_INVOKED:
6563                 ieee->privacy_invoked = param->value;
6564                 break;
6565
6566         default:
6567                 return -EOPNOTSUPP;
6568         }
6569         return ret;
6570 }
6571
6572 /* SIOCGIWAUTH */
6573 static int ipw_wx_get_auth(struct net_device *dev,
6574                            struct iw_request_info *info,
6575                            union iwreq_data *wrqu, char *extra)
6576 {
6577         struct ipw_priv *priv = ieee80211_priv(dev);
6578         struct ieee80211_device *ieee = priv->ieee;
6579         struct ieee80211_crypt_data *crypt;
6580         struct iw_param *param = &wrqu->param;
6581         int ret = 0;
6582
6583         switch (param->flags & IW_AUTH_INDEX) {
6584         case IW_AUTH_WPA_VERSION:
6585         case IW_AUTH_CIPHER_PAIRWISE:
6586         case IW_AUTH_CIPHER_GROUP:
6587         case IW_AUTH_KEY_MGMT:
6588                 /*
6589                  * wpa_supplicant will control these internally
6590                  */
6591                 ret = -EOPNOTSUPP;
6592                 break;
6593
6594         case IW_AUTH_TKIP_COUNTERMEASURES:
6595                 crypt = priv->ieee->crypt[priv->ieee->tx_keyidx];
6596                 if (!crypt || !crypt->ops->get_flags)
6597                         break;
6598
6599                 param->value = (crypt->ops->get_flags(crypt->priv) &
6600                                 IEEE80211_CRYPTO_TKIP_COUNTERMEASURES) ? 1 : 0;
6601
6602                 break;
6603
6604         case IW_AUTH_DROP_UNENCRYPTED:
6605                 param->value = ieee->drop_unencrypted;
6606                 break;
6607
6608         case IW_AUTH_80211_AUTH_ALG:
6609                 param->value = ieee->sec.auth_mode;
6610                 break;
6611
6612         case IW_AUTH_WPA_ENABLED:
6613                 param->value = ieee->wpa_enabled;
6614                 break;
6615
6616         case IW_AUTH_RX_UNENCRYPTED_EAPOL:
6617                 param->value = ieee->ieee802_1x;
6618                 break;
6619
6620         case IW_AUTH_ROAMING_CONTROL:
6621         case IW_AUTH_PRIVACY_INVOKED:
6622                 param->value = ieee->privacy_invoked;
6623                 break;
6624
6625         default:
6626                 return -EOPNOTSUPP;
6627         }
6628         return 0;
6629 }
6630
6631 /* SIOCSIWENCODEEXT */
6632 static int ipw_wx_set_encodeext(struct net_device *dev,
6633                                 struct iw_request_info *info,
6634                                 union iwreq_data *wrqu, char *extra)
6635 {
6636         struct ipw_priv *priv = ieee80211_priv(dev);
6637         struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
6638
6639         if (hwcrypto) {
6640                 if (ext->alg == IW_ENCODE_ALG_TKIP) {
6641                         /* IPW HW can't build TKIP MIC,
6642                            host decryption still needed */
6643                         if (ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY)
6644                                 priv->ieee->host_mc_decrypt = 1;
6645                         else {
6646                                 priv->ieee->host_encrypt = 0;
6647                                 priv->ieee->host_encrypt_msdu = 1;
6648                                 priv->ieee->host_decrypt = 1;
6649                         }
6650                 } else {
6651                         priv->ieee->host_encrypt = 0;
6652                         priv->ieee->host_encrypt_msdu = 0;
6653                         priv->ieee->host_decrypt = 0;
6654                         priv->ieee->host_mc_decrypt = 0;
6655                 }
6656         }
6657
6658         return ieee80211_wx_set_encodeext(priv->ieee, info, wrqu, extra);
6659 }
6660
6661 /* SIOCGIWENCODEEXT */
6662 static int ipw_wx_get_encodeext(struct net_device *dev,
6663                                 struct iw_request_info *info,
6664                                 union iwreq_data *wrqu, char *extra)
6665 {
6666         struct ipw_priv *priv = ieee80211_priv(dev);
6667         return ieee80211_wx_get_encodeext(priv->ieee, info, wrqu, extra);
6668 }
6669
6670 /* SIOCSIWMLME */
6671 static int ipw_wx_set_mlme(struct net_device *dev,
6672                            struct iw_request_info *info,
6673                            union iwreq_data *wrqu, char *extra)
6674 {
6675         struct ipw_priv *priv = ieee80211_priv(dev);
6676         struct iw_mlme *mlme = (struct iw_mlme *)extra;
6677         u16 reason;
6678
6679         reason = cpu_to_le16(mlme->reason_code);
6680
6681         switch (mlme->cmd) {
6682         case IW_MLME_DEAUTH:
6683                 // silently ignore
6684                 break;
6685
6686         case IW_MLME_DISASSOC:
6687                 ipw_disassociate(priv);
6688                 break;
6689
6690         default:
6691                 return -EOPNOTSUPP;
6692         }
6693         return 0;
6694 }
6695
6696 #ifdef CONFIG_IPW2200_QOS
6697
6698 /* QoS */
6699 /*
6700 * get the modulation type of the current network or
6701 * the card current mode
6702 */
6703 static u8 ipw_qos_current_mode(struct ipw_priv * priv)
6704 {
6705         u8 mode = 0;
6706
6707         if (priv->status & STATUS_ASSOCIATED) {
6708                 unsigned long flags;
6709
6710                 spin_lock_irqsave(&priv->ieee->lock, flags);
6711                 mode = priv->assoc_network->mode;
6712                 spin_unlock_irqrestore(&priv->ieee->lock, flags);
6713         } else {
6714                 mode = priv->ieee->mode;
6715         }
6716         IPW_DEBUG_QOS("QoS network/card mode %d \n", mode);
6717         return mode;
6718 }
6719
6720 /*
6721 * Handle management frame beacon and probe response
6722 */
6723 static int ipw_qos_handle_probe_response(struct ipw_priv *priv,
6724                                          int active_network,
6725                                          struct ieee80211_network *network)
6726 {
6727         u32 size = sizeof(struct ieee80211_qos_parameters);
6728
6729         if (network->capability & WLAN_CAPABILITY_IBSS)
6730                 network->qos_data.active = network->qos_data.supported;
6731
6732         if (network->flags & NETWORK_HAS_QOS_MASK) {
6733                 if (active_network &&
6734                     (network->flags & NETWORK_HAS_QOS_PARAMETERS))
6735                         network->qos_data.active = network->qos_data.supported;
6736
6737                 if ((network->qos_data.active == 1) && (active_network == 1) &&
6738                     (network->flags & NETWORK_HAS_QOS_PARAMETERS) &&
6739                     (network->qos_data.old_param_count !=
6740                      network->qos_data.param_count)) {
6741                         network->qos_data.old_param_count =
6742                             network->qos_data.param_count;
6743                         schedule_work(&priv->qos_activate);
6744                         IPW_DEBUG_QOS("QoS parameters change call "
6745                                       "qos_activate\n");
6746                 }
6747         } else {
6748                 if ((priv->ieee->mode == IEEE_B) || (network->mode == IEEE_B))
6749                         memcpy(&network->qos_data.parameters,
6750                                &def_parameters_CCK, size);
6751                 else
6752                         memcpy(&network->qos_data.parameters,
6753                                &def_parameters_OFDM, size);
6754
6755                 if ((network->qos_data.active == 1) && (active_network == 1)) {
6756                         IPW_DEBUG_QOS("QoS was disabled call qos_activate \n");
6757                         schedule_work(&priv->qos_activate);
6758                 }
6759
6760                 network->qos_data.active = 0;
6761                 network->qos_data.supported = 0;
6762         }
6763         if ((priv->status & STATUS_ASSOCIATED) &&
6764             (priv->ieee->iw_mode == IW_MODE_ADHOC) && (active_network == 0)) {
6765                 if (memcmp(network->bssid, priv->bssid, ETH_ALEN))
6766                         if ((network->capability & WLAN_CAPABILITY_IBSS) &&
6767                             !(network->flags & NETWORK_EMPTY_ESSID))
6768                                 if ((network->ssid_len ==
6769                                      priv->assoc_network->ssid_len) &&
6770                                     !memcmp(network->ssid,
6771                                             priv->assoc_network->ssid,
6772                                             network->ssid_len)) {
6773                                         queue_work(priv->workqueue,
6774                                                    &priv->merge_networks);
6775                                 }
6776         }
6777
6778         return 0;
6779 }
6780
6781 /*
6782 * This function set up the firmware to support QoS. It sends
6783 * IPW_CMD_QOS_PARAMETERS and IPW_CMD_WME_INFO
6784 */
6785 static int ipw_qos_activate(struct ipw_priv *priv,
6786                             struct ieee80211_qos_data *qos_network_data)
6787 {
6788         int err;
6789         struct ieee80211_qos_parameters qos_parameters[QOS_QOS_SETS];
6790         struct ieee80211_qos_parameters *active_one = NULL;
6791         u32 size = sizeof(struct ieee80211_qos_parameters);
6792         u32 burst_duration;
6793         int i;
6794         u8 type;
6795
6796         type = ipw_qos_current_mode(priv);
6797
6798         active_one = &(qos_parameters[QOS_PARAM_SET_DEF_CCK]);
6799         memcpy(active_one, priv->qos_data.def_qos_parm_CCK, size);
6800         active_one = &(qos_parameters[QOS_PARAM_SET_DEF_OFDM]);
6801         memcpy(active_one, priv->qos_data.def_qos_parm_OFDM, size);
6802
6803         if (qos_network_data == NULL) {
6804                 if (type == IEEE_B) {
6805                         IPW_DEBUG_QOS("QoS activate network mode %d\n", type);
6806                         active_one = &def_parameters_CCK;
6807                 } else
6808                         active_one = &def_parameters_OFDM;
6809
6810                 memcpy(&qos_parameters[QOS_PARAM_SET_ACTIVE], active_one, size);
6811                 burst_duration = ipw_qos_get_burst_duration(priv);
6812                 for (i = 0; i < QOS_QUEUE_NUM; i++)
6813                         qos_parameters[QOS_PARAM_SET_ACTIVE].tx_op_limit[i] =
6814                             (u16) burst_duration;
6815         } else if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
6816                 if (type == IEEE_B) {
6817                         IPW_DEBUG_QOS("QoS activate IBSS nework mode %d\n",
6818                                       type);
6819                         if (priv->qos_data.qos_enable == 0)
6820                                 active_one = &def_parameters_CCK;
6821                         else
6822                                 active_one = priv->qos_data.def_qos_parm_CCK;
6823                 } else {
6824                         if (priv->qos_data.qos_enable == 0)
6825                                 active_one = &def_parameters_OFDM;
6826                         else
6827                                 active_one = priv->qos_data.def_qos_parm_OFDM;
6828                 }
6829                 memcpy(&qos_parameters[QOS_PARAM_SET_ACTIVE], active_one, size);
6830         } else {
6831                 unsigned long flags;
6832                 int active;
6833
6834                 spin_lock_irqsave(&priv->ieee->lock, flags);
6835                 active_one = &(qos_network_data->parameters);
6836                 qos_network_data->old_param_count =
6837                     qos_network_data->param_count;
6838                 memcpy(&qos_parameters[QOS_PARAM_SET_ACTIVE], active_one, size);
6839                 active = qos_network_data->supported;
6840                 spin_unlock_irqrestore(&priv->ieee->lock, flags);
6841
6842                 if (active == 0) {
6843                         burst_duration = ipw_qos_get_burst_duration(priv);
6844                         for (i = 0; i < QOS_QUEUE_NUM; i++)
6845                                 qos_parameters[QOS_PARAM_SET_ACTIVE].
6846                                     tx_op_limit[i] = (u16) burst_duration;
6847                 }
6848         }
6849
6850         IPW_DEBUG_QOS("QoS sending IPW_CMD_QOS_PARAMETERS\n");
6851         err = ipw_send_qos_params_command(priv,
6852                                           (struct ieee80211_qos_parameters *)
6853                                           &(qos_parameters[0]));
6854         if (err)
6855                 IPW_DEBUG_QOS("QoS IPW_CMD_QOS_PARAMETERS failed\n");
6856
6857         return err;
6858 }
6859
6860 /*
6861 * send IPW_CMD_WME_INFO to the firmware
6862 */
6863 static int ipw_qos_set_info_element(struct ipw_priv *priv)
6864 {
6865         int ret = 0;
6866         struct ieee80211_qos_information_element qos_info;
6867
6868         if (priv == NULL)
6869                 return -1;
6870
6871         qos_info.elementID = QOS_ELEMENT_ID;
6872         qos_info.length = sizeof(struct ieee80211_qos_information_element) - 2;
6873
6874         qos_info.version = QOS_VERSION_1;
6875         qos_info.ac_info = 0;
6876
6877         memcpy(qos_info.qui, qos_oui, QOS_OUI_LEN);
6878         qos_info.qui_type = QOS_OUI_TYPE;
6879         qos_info.qui_subtype = QOS_OUI_INFO_SUB_TYPE;
6880
6881         ret = ipw_send_qos_info_command(priv, &qos_info);
6882         if (ret != 0) {
6883                 IPW_DEBUG_QOS("QoS error calling ipw_send_qos_info_command\n");
6884         }
6885         return ret;
6886 }
6887
6888 /*
6889 * Set the QoS parameter with the association request structure
6890 */
6891 static int ipw_qos_association(struct ipw_priv *priv,
6892                                struct ieee80211_network *network)
6893 {
6894         int err = 0;
6895         struct ieee80211_qos_data *qos_data = NULL;
6896         struct ieee80211_qos_data ibss_data = {
6897                 .supported = 1,
6898                 .active = 1,
6899         };
6900
6901         switch (priv->ieee->iw_mode) {
6902         case IW_MODE_ADHOC:
6903                 BUG_ON(!(network->capability & WLAN_CAPABILITY_IBSS));
6904
6905                 qos_data = &ibss_data;
6906                 break;
6907
6908         case IW_MODE_INFRA:
6909                 qos_data = &network->qos_data;
6910                 break;
6911
6912         default:
6913                 BUG();
6914                 break;
6915         }
6916
6917         err = ipw_qos_activate(priv, qos_data);
6918         if (err) {
6919                 priv->assoc_request.policy_support &= ~HC_QOS_SUPPORT_ASSOC;
6920                 return err;
6921         }
6922
6923         if (priv->qos_data.qos_enable && qos_data->supported) {
6924                 IPW_DEBUG_QOS("QoS will be enabled for this association\n");
6925                 priv->assoc_request.policy_support |= HC_QOS_SUPPORT_ASSOC;
6926                 return ipw_qos_set_info_element(priv);
6927         }
6928
6929         return 0;
6930 }
6931
6932 /*
6933 * handling the beaconing responces. if we get different QoS setting
6934 * of the network from the the associated setting adjust the QoS
6935 * setting
6936 */
6937 static int ipw_qos_association_resp(struct ipw_priv *priv,
6938                                     struct ieee80211_network *network)
6939 {
6940         int ret = 0;
6941         unsigned long flags;
6942         u32 size = sizeof(struct ieee80211_qos_parameters);
6943         int set_qos_param = 0;
6944
6945         if ((priv == NULL) || (network == NULL) ||
6946             (priv->assoc_network == NULL))
6947                 return ret;
6948
6949         if (!(priv->status & STATUS_ASSOCIATED))
6950                 return ret;
6951
6952         if ((priv->ieee->iw_mode != IW_MODE_INFRA))
6953                 return ret;
6954
6955         spin_lock_irqsave(&priv->ieee->lock, flags);
6956         if (network->flags & NETWORK_HAS_QOS_PARAMETERS) {
6957                 memcpy(&priv->assoc_network->qos_data, &network->qos_data,
6958                        sizeof(struct ieee80211_qos_data));
6959                 priv->assoc_network->qos_data.active = 1;
6960                 if ((network->qos_data.old_param_count !=
6961                      network->qos_data.param_count)) {
6962                         set_qos_param = 1;
6963                         network->qos_data.old_param_count =
6964                             network->qos_data.param_count;
6965                 }
6966
6967         } else {
6968                 if ((network->mode == IEEE_B) || (priv->ieee->mode == IEEE_B))
6969                         memcpy(&priv->assoc_network->qos_data.parameters,
6970                                &def_parameters_CCK, size);
6971                 else
6972                         memcpy(&priv->assoc_network->qos_data.parameters,
6973                                &def_parameters_OFDM, size);
6974                 priv->assoc_network->qos_data.active = 0;
6975                 priv->assoc_network->qos_data.supported = 0;
6976                 set_qos_param = 1;
6977         }
6978
6979         spin_unlock_irqrestore(&priv->ieee->lock, flags);
6980
6981         if (set_qos_param == 1)
6982                 schedule_work(&priv->qos_activate);
6983
6984         return ret;
6985 }
6986
6987 static u32 ipw_qos_get_burst_duration(struct ipw_priv *priv)
6988 {
6989         u32 ret = 0;
6990
6991         if ((priv == NULL))
6992                 return 0;
6993
6994         if (!(priv->ieee->modulation & IEEE80211_OFDM_MODULATION))
6995                 ret = priv->qos_data.burst_duration_CCK;
6996         else
6997                 ret = priv->qos_data.burst_duration_OFDM;
6998
6999         return ret;
7000 }
7001
7002 /*
7003 * Initialize the setting of QoS global
7004 */
7005 static void ipw_qos_init(struct ipw_priv *priv, int enable,
7006                          int burst_enable, u32 burst_duration_CCK,
7007                          u32 burst_duration_OFDM)
7008 {
7009         priv->qos_data.qos_enable = enable;
7010
7011         if (priv->qos_data.qos_enable) {
7012                 priv->qos_data.def_qos_parm_CCK = &def_qos_parameters_CCK;
7013                 priv->qos_data.def_qos_parm_OFDM = &def_qos_parameters_OFDM;
7014                 IPW_DEBUG_QOS("QoS is enabled\n");
7015         } else {
7016                 priv->qos_data.def_qos_parm_CCK = &def_parameters_CCK;
7017                 priv->qos_data.def_qos_parm_OFDM = &def_parameters_OFDM;
7018                 IPW_DEBUG_QOS("QoS is not enabled\n");
7019         }
7020
7021         priv->qos_data.burst_enable = burst_enable;
7022
7023         if (burst_enable) {
7024                 priv->qos_data.burst_duration_CCK = burst_duration_CCK;
7025                 priv->qos_data.burst_duration_OFDM = burst_duration_OFDM;
7026         } else {
7027                 priv->qos_data.burst_duration_CCK = 0;
7028                 priv->qos_data.burst_duration_OFDM = 0;
7029         }
7030 }
7031
7032 /*
7033 * map the packet priority to the right TX Queue
7034 */
7035 static int ipw_get_tx_queue_number(struct ipw_priv *priv, u16 priority)
7036 {
7037         if (priority > 7 || !priv->qos_data.qos_enable)
7038                 priority = 0;
7039
7040         return from_priority_to_tx_queue[priority] - 1;
7041 }
7042
7043 static int ipw_is_qos_active(struct net_device *dev,
7044                              struct sk_buff *skb)
7045 {
7046         struct ipw_priv *priv = ieee80211_priv(dev);
7047         struct ieee80211_qos_data *qos_data = NULL;
7048         int active, supported;
7049         u8 *daddr = skb->data + ETH_ALEN;
7050         int unicast = !is_multicast_ether_addr(daddr);
7051
7052         if (!(priv->status & STATUS_ASSOCIATED))
7053                 return 0;
7054
7055         qos_data = &priv->assoc_network->qos_data;
7056
7057         if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
7058                 if (unicast == 0)
7059                         qos_data->active = 0;
7060                 else
7061                         qos_data->active = qos_data->supported;
7062         }
7063         active = qos_data->active;
7064         supported = qos_data->supported;
7065         IPW_DEBUG_QOS("QoS  %d network is QoS active %d  supported %d  "
7066                       "unicast %d\n",
7067                       priv->qos_data.qos_enable, active, supported, unicast);
7068         if (active && priv->qos_data.qos_enable)
7069                 return 1;
7070
7071         return 0;
7072
7073 }
7074 /*
7075 * add QoS parameter to the TX command
7076 */
7077 static int ipw_qos_set_tx_queue_command(struct ipw_priv *priv,
7078                                         u16 priority,
7079                                         struct tfd_data *tfd)
7080 {
7081         int tx_queue_id = 0;
7082
7083
7084         tx_queue_id = from_priority_to_tx_queue[priority] - 1;
7085         tfd->tx_flags_ext |= DCT_FLAG_EXT_QOS_ENABLED;
7086
7087         if (priv->qos_data.qos_no_ack_mask & (1UL << tx_queue_id)) {
7088                 tfd->tx_flags &= ~DCT_FLAG_ACK_REQD;
7089                 tfd->tfd.tfd_26.mchdr.qos_ctrl |= CTRL_QOS_NO_ACK;
7090         }
7091         return 0;
7092 }
7093
7094 /*
7095 * background support to run QoS activate functionality
7096 */
7097 static void ipw_bg_qos_activate(void *data)
7098 {
7099         struct ipw_priv *priv = data;
7100
7101         if (priv == NULL)
7102                 return;
7103
7104         mutex_lock(&priv->mutex);
7105
7106         if (priv->status & STATUS_ASSOCIATED)
7107                 ipw_qos_activate(priv, &(priv->assoc_network->qos_data));
7108
7109         mutex_unlock(&priv->mutex);
7110 }
7111
7112 static int ipw_handle_probe_response(struct net_device *dev,
7113                                      struct ieee80211_probe_response *resp,
7114                                      struct ieee80211_network *network)
7115 {
7116         struct ipw_priv *priv = ieee80211_priv(dev);
7117         int active_network = ((priv->status & STATUS_ASSOCIATED) &&
7118                               (network == priv->assoc_network));
7119
7120         ipw_qos_handle_probe_response(priv, active_network, network);
7121
7122         return 0;
7123 }
7124
7125 static int ipw_handle_beacon(struct net_device *dev,
7126                              struct ieee80211_beacon *resp,
7127                              struct ieee80211_network *network)
7128 {
7129         struct ipw_priv *priv = ieee80211_priv(dev);
7130         int active_network = ((priv->status & STATUS_ASSOCIATED) &&
7131                               (network == priv->assoc_network));
7132
7133         ipw_qos_handle_probe_response(priv, active_network, network);
7134
7135         return 0;
7136 }
7137
7138 static int ipw_handle_assoc_response(struct net_device *dev,
7139                                      struct ieee80211_assoc_response *resp,
7140                                      struct ieee80211_network *network)
7141 {
7142         struct ipw_priv *priv = ieee80211_priv(dev);
7143         ipw_qos_association_resp(priv, network);
7144         return 0;
7145 }
7146
7147 static int ipw_send_qos_params_command(struct ipw_priv *priv, struct ieee80211_qos_parameters
7148                                        *qos_param)
7149 {
7150         return ipw_send_cmd_pdu(priv, IPW_CMD_QOS_PARAMETERS,
7151                                 sizeof(*qos_param) * 3, qos_param);
7152 }
7153
7154 static int ipw_send_qos_info_command(struct ipw_priv *priv, struct ieee80211_qos_information_element
7155                                      *qos_param)
7156 {
7157         return ipw_send_cmd_pdu(priv, IPW_CMD_WME_INFO, sizeof(*qos_param),
7158                                 qos_param);
7159 }
7160
7161 #endif                          /* CONFIG_IPW2200_QOS */
7162
7163 static int ipw_associate_network(struct ipw_priv *priv,
7164                                  struct ieee80211_network *network,
7165                                  struct ipw_supported_rates *rates, int roaming)
7166 {
7167         int err;
7168
7169         if (priv->config & CFG_FIXED_RATE)
7170                 ipw_set_fixed_rate(priv, network->mode);
7171
7172         if (!(priv->config & CFG_STATIC_ESSID)) {
7173                 priv->essid_len = min(network->ssid_len,
7174                                       (u8) IW_ESSID_MAX_SIZE);
7175                 memcpy(priv->essid, network->ssid, priv->essid_len);
7176         }
7177
7178         network->last_associate = jiffies;
7179
7180         memset(&priv->assoc_request, 0, sizeof(priv->assoc_request));
7181         priv->assoc_request.channel = network->channel;
7182         priv->assoc_request.auth_key = 0;
7183
7184         if ((priv->capability & CAP_PRIVACY_ON) &&
7185             (priv->ieee->sec.auth_mode == WLAN_AUTH_SHARED_KEY)) {
7186                 priv->assoc_request.auth_type = AUTH_SHARED_KEY;
7187                 priv->assoc_request.auth_key = priv->ieee->sec.active_key;
7188
7189                 if (priv->ieee->sec.level == SEC_LEVEL_1)
7190                         ipw_send_wep_keys(priv, DCW_WEP_KEY_SEC_TYPE_WEP);
7191
7192         } else if ((priv->capability & CAP_PRIVACY_ON) &&
7193                    (priv->ieee->sec.auth_mode == WLAN_AUTH_LEAP))
7194                 priv->assoc_request.auth_type = AUTH_LEAP;
7195         else
7196                 priv->assoc_request.auth_type = AUTH_OPEN;
7197
7198         if (priv->ieee->wpa_ie_len) {
7199                 priv->assoc_request.policy_support = 0x02;      /* RSN active */
7200                 ipw_set_rsn_capa(priv, priv->ieee->wpa_ie,
7201                                  priv->ieee->wpa_ie_len);
7202         }
7203
7204         /*
7205          * It is valid for our ieee device to support multiple modes, but
7206          * when it comes to associating to a given network we have to choose
7207          * just one mode.
7208          */
7209         if (network->mode & priv->ieee->mode & IEEE_A)
7210                 priv->assoc_request.ieee_mode = IPW_A_MODE;
7211         else if (network->mode & priv->ieee->mode & IEEE_G)
7212                 priv->assoc_request.ieee_mode = IPW_G_MODE;
7213         else if (network->mode & priv->ieee->mode & IEEE_B)
7214                 priv->assoc_request.ieee_mode = IPW_B_MODE;
7215
7216         priv->assoc_request.capability = network->capability;
7217         if ((network->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
7218             && !(priv->config & CFG_PREAMBLE_LONG)) {
7219                 priv->assoc_request.preamble_length = DCT_FLAG_SHORT_PREAMBLE;
7220         } else {
7221                 priv->assoc_request.preamble_length = DCT_FLAG_LONG_PREAMBLE;
7222
7223                 /* Clear the short preamble if we won't be supporting it */
7224                 priv->assoc_request.capability &=
7225                     ~WLAN_CAPABILITY_SHORT_PREAMBLE;
7226         }
7227
7228         /* Clear capability bits that aren't used in Ad Hoc */
7229         if (priv->ieee->iw_mode == IW_MODE_ADHOC)
7230                 priv->assoc_request.capability &=
7231                     ~WLAN_CAPABILITY_SHORT_SLOT_TIME;
7232
7233         IPW_DEBUG_ASSOC("%sssocation attempt: '%s', channel %d, "
7234                         "802.11%c [%d], %s[:%s], enc=%s%s%s%c%c\n",
7235                         roaming ? "Rea" : "A",
7236                         escape_essid(priv->essid, priv->essid_len),
7237                         network->channel,
7238                         ipw_modes[priv->assoc_request.ieee_mode],
7239                         rates->num_rates,
7240                         (priv->assoc_request.preamble_length ==
7241                          DCT_FLAG_LONG_PREAMBLE) ? "long" : "short",
7242                         network->capability &
7243                         WLAN_CAPABILITY_SHORT_PREAMBLE ? "short" : "long",
7244                         priv->capability & CAP_PRIVACY_ON ? "on " : "off",
7245                         priv->capability & CAP_PRIVACY_ON ?
7246                         (priv->capability & CAP_SHARED_KEY ? "(shared)" :
7247                          "(open)") : "",
7248                         priv->capability & CAP_PRIVACY_ON ? " key=" : "",
7249                         priv->capability & CAP_PRIVACY_ON ?
7250                         '1' + priv->ieee->sec.active_key : '.',
7251                         priv->capability & CAP_PRIVACY_ON ? '.' : ' ');
7252
7253         priv->assoc_request.beacon_interval = network->beacon_interval;
7254         if ((priv->ieee->iw_mode == IW_MODE_ADHOC) &&
7255             (network->time_stamp[0] == 0) && (network->time_stamp[1] == 0)) {
7256                 priv->assoc_request.assoc_type = HC_IBSS_START;
7257                 priv->assoc_request.assoc_tsf_msw = 0;
7258                 priv->assoc_request.assoc_tsf_lsw = 0;
7259         } else {
7260                 if (unlikely(roaming))
7261                         priv->assoc_request.assoc_type = HC_REASSOCIATE;
7262                 else
7263                         priv->assoc_request.assoc_type = HC_ASSOCIATE;
7264                 priv->assoc_request.assoc_tsf_msw = network->time_stamp[1];
7265                 priv->assoc_request.assoc_tsf_lsw = network->time_stamp[0];
7266         }
7267
7268         memcpy(priv->assoc_request.bssid, network->bssid, ETH_ALEN);
7269
7270         if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
7271                 memset(&priv->assoc_request.dest, 0xFF, ETH_ALEN);
7272                 priv->assoc_request.atim_window = network->atim_window;
7273         } else {
7274                 memcpy(priv->assoc_request.dest, network->bssid, ETH_ALEN);
7275                 priv->assoc_request.atim_window = 0;
7276         }
7277
7278         priv->assoc_request.listen_interval = network->listen_interval;
7279
7280         err = ipw_send_ssid(priv, priv->essid, priv->essid_len);
7281         if (err) {
7282                 IPW_DEBUG_HC("Attempt to send SSID command failed.\n");
7283                 return err;
7284         }
7285
7286         rates->ieee_mode = priv->assoc_request.ieee_mode;
7287         rates->purpose = IPW_RATE_CONNECT;
7288         ipw_send_supported_rates(priv, rates);
7289
7290         if (priv->assoc_request.ieee_mode == IPW_G_MODE)
7291                 priv->sys_config.dot11g_auto_detection = 1;
7292         else
7293                 priv->sys_config.dot11g_auto_detection = 0;
7294
7295         if (priv->ieee->iw_mode == IW_MODE_ADHOC)
7296                 priv->sys_config.answer_broadcast_ssid_probe = 1;
7297         else
7298                 priv->sys_config.answer_broadcast_ssid_probe = 0;
7299
7300         err = ipw_send_system_config(priv);
7301         if (err) {
7302                 IPW_DEBUG_HC("Attempt to send sys config command failed.\n");
7303                 return err;
7304         }
7305
7306         IPW_DEBUG_ASSOC("Association sensitivity: %d\n", network->stats.rssi);
7307         err = ipw_set_sensitivity(priv, network->stats.rssi + IPW_RSSI_TO_DBM);
7308         if (err) {
7309                 IPW_DEBUG_HC("Attempt to send associate command failed.\n");
7310                 return err;
7311         }
7312
7313         /*
7314          * If preemption is enabled, it is possible for the association
7315          * to complete before we return from ipw_send_associate.  Therefore
7316          * we have to be sure and update our priviate data first.
7317          */
7318         priv->channel = network->channel;
7319         memcpy(priv->bssid, network->bssid, ETH_ALEN);
7320         priv->status |= STATUS_ASSOCIATING;
7321         priv->status &= ~STATUS_SECURITY_UPDATED;
7322
7323         priv->assoc_network = network;
7324
7325 #ifdef CONFIG_IPW2200_QOS
7326         ipw_qos_association(priv, network);
7327 #endif
7328
7329         err = ipw_send_associate(priv, &priv->assoc_request);
7330         if (err) {
7331                 IPW_DEBUG_HC("Attempt to send associate command failed.\n");
7332                 return err;
7333         }
7334
7335         IPW_DEBUG(IPW_DL_STATE, "associating: '%s' " MAC_FMT " \n",
7336                   escape_essid(priv->essid, priv->essid_len),
7337                   MAC_ARG(priv->bssid));
7338
7339         return 0;
7340 }
7341
7342 static void ipw_roam(void *data)
7343 {
7344         struct ipw_priv *priv = data;
7345         struct ieee80211_network *network = NULL;
7346         struct ipw_network_match match = {
7347                 .network = priv->assoc_network
7348         };
7349
7350         /* The roaming process is as follows:
7351          *
7352          * 1.  Missed beacon threshold triggers the roaming process by
7353          *     setting the status ROAM bit and requesting a scan.
7354          * 2.  When the scan completes, it schedules the ROAM work
7355          * 3.  The ROAM work looks at all of the known networks for one that
7356          *     is a better network than the currently associated.  If none
7357          *     found, the ROAM process is over (ROAM bit cleared)
7358          * 4.  If a better network is found, a disassociation request is
7359          *     sent.
7360          * 5.  When the disassociation completes, the roam work is again
7361          *     scheduled.  The second time through, the driver is no longer
7362          *     associated, and the newly selected network is sent an
7363          *     association request.
7364          * 6.  At this point ,the roaming process is complete and the ROAM
7365          *     status bit is cleared.
7366          */
7367
7368         /* If we are no longer associated, and the roaming bit is no longer
7369          * set, then we are not actively roaming, so just return */
7370         if (!(priv->status & (STATUS_ASSOCIATED | STATUS_ROAMING)))
7371                 return;
7372
7373         if (priv->status & STATUS_ASSOCIATED) {
7374                 /* First pass through ROAM process -- look for a better
7375                  * network */
7376                 unsigned long flags;
7377                 u8 rssi = priv->assoc_network->stats.rssi;
7378                 priv->assoc_network->stats.rssi = -128;
7379                 spin_lock_irqsave(&priv->ieee->lock, flags);
7380                 list_for_each_entry(network, &priv->ieee->network_list, list) {
7381                         if (network != priv->assoc_network)
7382                                 ipw_best_network(priv, &match, network, 1);
7383                 }
7384                 spin_unlock_irqrestore(&priv->ieee->lock, flags);
7385                 priv->assoc_network->stats.rssi = rssi;
7386
7387                 if (match.network == priv->assoc_network) {
7388                         IPW_DEBUG_ASSOC("No better APs in this network to "
7389                                         "roam to.\n");
7390                         priv->status &= ~STATUS_ROAMING;
7391                         ipw_debug_config(priv);
7392                         return;
7393                 }
7394
7395                 ipw_send_disassociate(priv, 1);
7396                 priv->assoc_network = match.network;
7397
7398                 return;
7399         }
7400
7401         /* Second pass through ROAM process -- request association */
7402         ipw_compatible_rates(priv, priv->assoc_network, &match.rates);
7403         ipw_associate_network(priv, priv->assoc_network, &match.rates, 1);
7404         priv->status &= ~STATUS_ROAMING;
7405 }
7406
7407 static void ipw_bg_roam(void *data)
7408 {
7409         struct ipw_priv *priv = data;
7410         mutex_lock(&priv->mutex);
7411         ipw_roam(data);
7412         mutex_unlock(&priv->mutex);
7413 }
7414
7415 static int ipw_associate(void *data)
7416 {
7417         struct ipw_priv *priv = data;
7418
7419         struct ieee80211_network *network = NULL;
7420         struct ipw_network_match match = {
7421                 .network = NULL
7422         };
7423         struct ipw_supported_rates *rates;
7424         struct list_head *element;
7425         unsigned long flags;
7426
7427         if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
7428                 IPW_DEBUG_ASSOC("Not attempting association (monitor mode)\n");
7429                 return 0;
7430         }
7431
7432         if (priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)) {
7433                 IPW_DEBUG_ASSOC("Not attempting association (already in "
7434                                 "progress)\n");
7435                 return 0;
7436         }
7437
7438         if (priv->status & STATUS_DISASSOCIATING) {
7439                 IPW_DEBUG_ASSOC("Not attempting association (in "
7440                                 "disassociating)\n ");
7441                 queue_work(priv->workqueue, &priv->associate);
7442                 return 0;
7443         }
7444
7445         if (!ipw_is_init(priv) || (priv->status & STATUS_SCANNING)) {
7446                 IPW_DEBUG_ASSOC("Not attempting association (scanning or not "
7447                                 "initialized)\n");
7448                 return 0;
7449         }
7450
7451         if (!(priv->config & CFG_ASSOCIATE) &&
7452             !(priv->config & (CFG_STATIC_ESSID |
7453                               CFG_STATIC_CHANNEL | CFG_STATIC_BSSID))) {
7454                 IPW_DEBUG_ASSOC("Not attempting association (associate=0)\n");
7455                 return 0;
7456         }
7457
7458         /* Protect our use of the network_list */
7459         spin_lock_irqsave(&priv->ieee->lock, flags);
7460         list_for_each_entry(network, &priv->ieee->network_list, list)
7461             ipw_best_network(priv, &match, network, 0);
7462
7463         network = match.network;
7464         rates = &match.rates;
7465
7466         if (network == NULL &&
7467             priv->ieee->iw_mode == IW_MODE_ADHOC &&
7468             priv->config & CFG_ADHOC_CREATE &&
7469             priv->config & CFG_STATIC_ESSID &&
7470             priv->config & CFG_STATIC_CHANNEL &&
7471             !list_empty(&priv->ieee->network_free_list)) {
7472                 element = priv->ieee->network_free_list.next;
7473                 network = list_entry(element, struct ieee80211_network, list);
7474                 ipw_adhoc_create(priv, network);
7475                 rates = &priv->rates;
7476                 list_del(element);
7477                 list_add_tail(&network->list, &priv->ieee->network_list);
7478         }
7479         spin_unlock_irqrestore(&priv->ieee->lock, flags);
7480
7481         /* If we reached the end of the list, then we don't have any valid
7482          * matching APs */
7483         if (!network) {
7484                 ipw_debug_config(priv);
7485
7486                 if (!(priv->status & STATUS_SCANNING)) {
7487                         if (!(priv->config & CFG_SPEED_SCAN))
7488                                 queue_delayed_work(priv->workqueue,
7489                                                    &priv->request_scan,
7490                                                    SCAN_INTERVAL);
7491                         else
7492                                 queue_work(priv->workqueue,
7493                                            &priv->request_scan);
7494                 }
7495
7496                 return 0;
7497         }
7498
7499         ipw_associate_network(priv, network, rates, 0);
7500
7501         return 1;
7502 }
7503
7504 static void ipw_bg_associate(void *data)
7505 {
7506         struct ipw_priv *priv = data;
7507         mutex_lock(&priv->mutex);
7508         ipw_associate(data);
7509         mutex_unlock(&priv->mutex);
7510 }
7511
7512 static void ipw_rebuild_decrypted_skb(struct ipw_priv *priv,
7513                                       struct sk_buff *skb)
7514 {
7515         struct ieee80211_hdr *hdr;
7516         u16 fc;
7517
7518         hdr = (struct ieee80211_hdr *)skb->data;
7519         fc = le16_to_cpu(hdr->frame_ctl);
7520         if (!(fc & IEEE80211_FCTL_PROTECTED))
7521                 return;
7522
7523         fc &= ~IEEE80211_FCTL_PROTECTED;
7524         hdr->frame_ctl = cpu_to_le16(fc);
7525         switch (priv->ieee->sec.level) {
7526         case SEC_LEVEL_3:
7527                 /* Remove CCMP HDR */
7528                 memmove(skb->data + IEEE80211_3ADDR_LEN,
7529                         skb->data + IEEE80211_3ADDR_LEN + 8,
7530                         skb->len - IEEE80211_3ADDR_LEN - 8);
7531                 skb_trim(skb, skb->len - 16);   /* CCMP_HDR_LEN + CCMP_MIC_LEN */
7532                 break;
7533         case SEC_LEVEL_2:
7534                 break;
7535         case SEC_LEVEL_1:
7536                 /* Remove IV */
7537                 memmove(skb->data + IEEE80211_3ADDR_LEN,
7538                         skb->data + IEEE80211_3ADDR_LEN + 4,
7539                         skb->len - IEEE80211_3ADDR_LEN - 4);
7540                 skb_trim(skb, skb->len - 8);    /* IV + ICV */
7541                 break;
7542         case SEC_LEVEL_0:
7543                 break;
7544         default:
7545                 printk(KERN_ERR "Unknow security level %d\n",
7546                        priv->ieee->sec.level);
7547                 break;
7548         }
7549 }
7550
7551 static void ipw_handle_data_packet(struct ipw_priv *priv,
7552                                    struct ipw_rx_mem_buffer *rxb,
7553                                    struct ieee80211_rx_stats *stats)
7554 {
7555         struct ieee80211_hdr_4addr *hdr;
7556         struct ipw_rx_packet *pkt = (struct ipw_rx_packet *)rxb->skb->data;
7557
7558         /* We received data from the HW, so stop the watchdog */
7559         priv->net_dev->trans_start = jiffies;
7560
7561         /* We only process data packets if the
7562          * interface is open */
7563         if (unlikely((le16_to_cpu(pkt->u.frame.length) + IPW_RX_FRAME_SIZE) >
7564                      skb_tailroom(rxb->skb))) {
7565                 priv->ieee->stats.rx_errors++;
7566                 priv->wstats.discard.misc++;
7567                 IPW_DEBUG_DROP("Corruption detected! Oh no!\n");
7568                 return;
7569         } else if (unlikely(!netif_running(priv->net_dev))) {
7570                 priv->ieee->stats.rx_dropped++;
7571                 priv->wstats.discard.misc++;
7572                 IPW_DEBUG_DROP("Dropping packet while interface is not up.\n");
7573                 return;
7574         }
7575
7576         /* Advance skb->data to the start of the actual payload */
7577         skb_reserve(rxb->skb, offsetof(struct ipw_rx_packet, u.frame.data));
7578
7579         /* Set the size of the skb to the size of the frame */
7580         skb_put(rxb->skb, le16_to_cpu(pkt->u.frame.length));
7581
7582         IPW_DEBUG_RX("Rx packet of %d bytes.\n", rxb->skb->len);
7583
7584         /* HW decrypt will not clear the WEP bit, MIC, PN, etc. */
7585         hdr = (struct ieee80211_hdr_4addr *)rxb->skb->data;
7586         if (priv->ieee->iw_mode != IW_MODE_MONITOR &&
7587             (is_multicast_ether_addr(hdr->addr1) ?
7588              !priv->ieee->host_mc_decrypt : !priv->ieee->host_decrypt))
7589                 ipw_rebuild_decrypted_skb(priv, rxb->skb);
7590
7591         if (!ieee80211_rx(priv->ieee, rxb->skb, stats))
7592                 priv->ieee->stats.rx_errors++;
7593         else {                  /* ieee80211_rx succeeded, so it now owns the SKB */
7594                 rxb->skb = NULL;
7595                 __ipw_led_activity_on(priv);
7596         }
7597 }
7598
7599 #ifdef CONFIG_IPW2200_RADIOTAP
7600 static void ipw_handle_data_packet_monitor(struct ipw_priv *priv,
7601                                            struct ipw_rx_mem_buffer *rxb,
7602                                            struct ieee80211_rx_stats *stats)
7603 {
7604         struct ipw_rx_packet *pkt = (struct ipw_rx_packet *)rxb->skb->data;
7605         struct ipw_rx_frame *frame = &pkt->u.frame;
7606
7607         /* initial pull of some data */
7608         u16 received_channel = frame->received_channel;
7609         u8 antennaAndPhy = frame->antennaAndPhy;
7610         s8 antsignal = frame->rssi_dbm - IPW_RSSI_TO_DBM;       /* call it signed anyhow */
7611         u16 pktrate = frame->rate;
7612
7613         /* Magic struct that slots into the radiotap header -- no reason
7614          * to build this manually element by element, we can write it much
7615          * more efficiently than we can parse it. ORDER MATTERS HERE */
7616         struct ipw_rt_hdr *ipw_rt;
7617
7618         short len = le16_to_cpu(pkt->u.frame.length);
7619
7620         /* We received data from the HW, so stop the watchdog */
7621         priv->net_dev->trans_start = jiffies;
7622
7623         /* We only process data packets if the
7624          * interface is open */
7625         if (unlikely((le16_to_cpu(pkt->u.frame.length) + IPW_RX_FRAME_SIZE) >
7626                      skb_tailroom(rxb->skb))) {
7627                 priv->ieee->stats.rx_errors++;
7628                 priv->wstats.discard.misc++;
7629                 IPW_DEBUG_DROP("Corruption detected! Oh no!\n");
7630                 return;
7631         } else if (unlikely(!netif_running(priv->net_dev))) {
7632                 priv->ieee->stats.rx_dropped++;
7633                 priv->wstats.discard.misc++;
7634                 IPW_DEBUG_DROP("Dropping packet while interface is not up.\n");
7635                 return;
7636         }
7637
7638         /* Libpcap 0.9.3+ can handle variable length radiotap, so we'll use
7639          * that now */
7640         if (len > IPW_RX_BUF_SIZE - sizeof(struct ipw_rt_hdr)) {
7641                 /* FIXME: Should alloc bigger skb instead */
7642                 priv->ieee->stats.rx_dropped++;
7643                 priv->wstats.discard.misc++;
7644                 IPW_DEBUG_DROP("Dropping too large packet in monitor\n");
7645                 return;
7646         }
7647
7648         /* copy the frame itself */
7649         memmove(rxb->skb->data + sizeof(struct ipw_rt_hdr),
7650                 rxb->skb->data + IPW_RX_FRAME_SIZE, len);
7651
7652         /* Zero the radiotap static buffer  ...  We only need to zero the bytes NOT
7653          * part of our real header, saves a little time.
7654          *
7655          * No longer necessary since we fill in all our data.  Purge before merging
7656          * patch officially.
7657          * memset(rxb->skb->data + sizeof(struct ipw_rt_hdr), 0,
7658          *        IEEE80211_RADIOTAP_HDRLEN - sizeof(struct ipw_rt_hdr));
7659          */
7660
7661         ipw_rt = (struct ipw_rt_hdr *)rxb->skb->data;
7662
7663         ipw_rt->rt_hdr.it_version = PKTHDR_RADIOTAP_VERSION;
7664         ipw_rt->rt_hdr.it_pad = 0;      /* always good to zero */
7665         ipw_rt->rt_hdr.it_len = sizeof(struct ipw_rt_hdr);      /* total header+data */
7666
7667         /* Big bitfield of all the fields we provide in radiotap */
7668         ipw_rt->rt_hdr.it_present =
7669             ((1 << IEEE80211_RADIOTAP_FLAGS) |
7670              (1 << IEEE80211_RADIOTAP_TSFT) |
7671              (1 << IEEE80211_RADIOTAP_RATE) |
7672              (1 << IEEE80211_RADIOTAP_CHANNEL) |
7673              (1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL) |
7674              (1 << IEEE80211_RADIOTAP_DBM_ANTNOISE) |
7675              (1 << IEEE80211_RADIOTAP_ANTENNA));
7676
7677         /* Zero the flags, we'll add to them as we go */
7678         ipw_rt->rt_flags = 0;
7679
7680         /* Convert signal to DBM */
7681         ipw_rt->rt_dbmsignal = antsignal;
7682
7683         /* Convert the channel data and set the flags */
7684         ipw_rt->rt_channel = cpu_to_le16(ieee80211chan2mhz(received_channel));
7685         if (received_channel > 14) {    /* 802.11a */
7686                 ipw_rt->rt_chbitmask =
7687                     cpu_to_le16((IEEE80211_CHAN_OFDM | IEEE80211_CHAN_5GHZ));
7688         } else if (antennaAndPhy & 32) {        /* 802.11b */
7689                 ipw_rt->rt_chbitmask =
7690                     cpu_to_le16((IEEE80211_CHAN_CCK | IEEE80211_CHAN_2GHZ));
7691         } else {                /* 802.11g */
7692                 ipw_rt->rt_chbitmask =
7693                     (IEEE80211_CHAN_OFDM | IEEE80211_CHAN_2GHZ);
7694         }
7695
7696         /* set the rate in multiples of 500k/s */
7697         switch (pktrate) {
7698         case IPW_TX_RATE_1MB:
7699                 ipw_rt->rt_rate = 2;
7700                 break;
7701         case IPW_TX_RATE_2MB:
7702                 ipw_rt->rt_rate = 4;
7703                 break;
7704         case IPW_TX_RATE_5MB:
7705                 ipw_rt->rt_rate = 10;
7706                 break;
7707         case IPW_TX_RATE_6MB:
7708                 ipw_rt->rt_rate = 12;
7709                 break;
7710         case IPW_TX_RATE_9MB:
7711                 ipw_rt->rt_rate = 18;
7712                 break;
7713         case IPW_TX_RATE_11MB:
7714                 ipw_rt->rt_rate = 22;
7715                 break;
7716         case IPW_TX_RATE_12MB:
7717                 ipw_rt->rt_rate = 24;
7718                 break;
7719         case IPW_TX_RATE_18MB:
7720                 ipw_rt->rt_rate = 36;
7721                 break;
7722         case IPW_TX_RATE_24MB:
7723                 ipw_rt->rt_rate = 48;
7724                 break;
7725         case IPW_TX_RATE_36MB:
7726                 ipw_rt->rt_rate = 72;
7727                 break;
7728         case IPW_TX_RATE_48MB:
7729                 ipw_rt->rt_rate = 96;
7730                 break;
7731         case IPW_TX_RATE_54MB:
7732                 ipw_rt->rt_rate = 108;
7733                 break;
7734         default:
7735                 ipw_rt->rt_rate = 0;
7736                 break;
7737         }
7738
7739         /* antenna number */
7740         ipw_rt->rt_antenna = (antennaAndPhy & 3);       /* Is this right? */
7741
7742         /* set the preamble flag if we have it */
7743         if ((antennaAndPhy & 64))
7744                 ipw_rt->rt_flags |= IEEE80211_RADIOTAP_F_SHORTPRE;
7745
7746         /* Set the size of the skb to the size of the frame */
7747         skb_put(rxb->skb, len + sizeof(struct ipw_rt_hdr));
7748
7749         IPW_DEBUG_RX("Rx packet of %d bytes.\n", rxb->skb->len);
7750
7751         if (!ieee80211_rx(priv->ieee, rxb->skb, stats))
7752                 priv->ieee->stats.rx_errors++;
7753         else {                  /* ieee80211_rx succeeded, so it now owns the SKB */
7754                 rxb->skb = NULL;
7755                 /* no LED during capture */
7756         }
7757 }
7758 #endif
7759
7760 #ifdef CONFIG_IPW2200_PROMISCUOUS
7761 #define ieee80211_is_probe_response(fc) \
7762    ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT && \
7763     (fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PROBE_RESP )
7764
7765 #define ieee80211_is_management(fc) \
7766    ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT)
7767
7768 #define ieee80211_is_control(fc) \
7769    ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_CTL)
7770
7771 #define ieee80211_is_data(fc) \
7772    ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA)
7773
7774 #define ieee80211_is_assoc_request(fc) \
7775    ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_ASSOC_REQ)
7776
7777 #define ieee80211_is_reassoc_request(fc) \
7778    ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_REASSOC_REQ)
7779
7780 static void ipw_handle_promiscuous_rx(struct ipw_priv *priv,
7781                                       struct ipw_rx_mem_buffer *rxb,
7782                                       struct ieee80211_rx_stats *stats)
7783 {
7784         struct ipw_rx_packet *pkt = (struct ipw_rx_packet *)rxb->skb->data;
7785         struct ipw_rx_frame *frame = &pkt->u.frame;
7786         struct ipw_rt_hdr *ipw_rt;
7787
7788         /* First cache any information we need before we overwrite
7789          * the information provided in the skb from the hardware */
7790         struct ieee80211_hdr *hdr;
7791         u16 channel = frame->received_channel;
7792         u8 phy_flags = frame->antennaAndPhy;
7793         s8 signal = frame->rssi_dbm - IPW_RSSI_TO_DBM;
7794         s8 noise = frame->noise;
7795         u8 rate = frame->rate;
7796         short len = le16_to_cpu(pkt->u.frame.length);
7797         u64 tsf = 0;
7798         struct sk_buff *skb;
7799         int hdr_only = 0;
7800         u16 filter = priv->prom_priv->filter;
7801
7802         /* If the filter is set to not include Rx frames then return */
7803         if (filter & IPW_PROM_NO_RX)
7804                 return;
7805
7806         /* We received data from the HW, so stop the watchdog */
7807         priv->prom_net_dev->trans_start = jiffies;
7808
7809         if (unlikely((len + IPW_RX_FRAME_SIZE) > skb_tailroom(rxb->skb))) {
7810                 priv->prom_priv->ieee->stats.rx_errors++;
7811                 IPW_DEBUG_DROP("Corruption detected! Oh no!\n");
7812                 return;
7813         }
7814
7815         /* We only process data packets if the interface is open */
7816         if (unlikely(!netif_running(priv->prom_net_dev))) {
7817                 priv->prom_priv->ieee->stats.rx_dropped++;
7818                 IPW_DEBUG_DROP("Dropping packet while interface is not up.\n");
7819                 return;
7820         }
7821
7822         /* Libpcap 0.9.3+ can handle variable length radiotap, so we'll use
7823          * that now */
7824         if (len > IPW_RX_BUF_SIZE - sizeof(struct ipw_rt_hdr)) {
7825                 /* FIXME: Should alloc bigger skb instead */
7826                 priv->prom_priv->ieee->stats.rx_dropped++;
7827                 IPW_DEBUG_DROP("Dropping too large packet in monitor\n");
7828                 return;
7829         }
7830
7831         hdr = (void *)rxb->skb->data + IPW_RX_FRAME_SIZE;
7832         if (ieee80211_is_management(hdr->frame_ctl)) {
7833                 if (filter & IPW_PROM_NO_MGMT)
7834                         return;
7835                 if (filter & IPW_PROM_MGMT_HEADER_ONLY)
7836                         hdr_only = 1;
7837         } else if (ieee80211_is_control(hdr->frame_ctl)) {
7838                 if (filter & IPW_PROM_NO_CTL)
7839                         return;
7840                 if (filter & IPW_PROM_CTL_HEADER_ONLY)
7841                         hdr_only = 1;
7842         } else if (ieee80211_is_data(hdr->frame_ctl)) {
7843                 if (filter & IPW_PROM_NO_DATA)
7844                         return;
7845                 if (filter & IPW_PROM_DATA_HEADER_ONLY)
7846                         hdr_only = 1;
7847         }
7848
7849         /* Copy the SKB since this is for the promiscuous side */
7850         skb = skb_copy(rxb->skb, GFP_ATOMIC);
7851         if (skb == NULL) {
7852                 IPW_ERROR("skb_clone failed for promiscuous copy.\n");
7853                 return;
7854         }
7855
7856         /* copy the frame data to write after where the radiotap header goes */
7857         ipw_rt = (void *)skb->data;
7858
7859         if (hdr_only)
7860                 len = ieee80211_get_hdrlen(hdr->frame_ctl);
7861
7862         memcpy(ipw_rt->payload, hdr, len);
7863
7864         /* Zero the radiotap static buffer  ...  We only need to zero the bytes
7865          * NOT part of our real header, saves a little time.
7866          *
7867          * No longer necessary since we fill in all our data.  Purge before
7868          * merging patch officially.
7869          * memset(rxb->skb->data + sizeof(struct ipw_rt_hdr), 0,
7870          *        IEEE80211_RADIOTAP_HDRLEN - sizeof(struct ipw_rt_hdr));
7871          */
7872
7873         ipw_rt->rt_hdr.it_version = PKTHDR_RADIOTAP_VERSION;
7874         ipw_rt->rt_hdr.it_pad = 0;      /* always good to zero */
7875         ipw_rt->rt_hdr.it_len = sizeof(*ipw_rt);        /* total header+data */
7876
7877         /* Set the size of the skb to the size of the frame */
7878         skb_put(skb, ipw_rt->rt_hdr.it_len + len);
7879
7880         /* Big bitfield of all the fields we provide in radiotap */
7881         ipw_rt->rt_hdr.it_present =
7882             ((1 << IEEE80211_RADIOTAP_FLAGS) |
7883              (1 << IEEE80211_RADIOTAP_TSFT) |
7884              (1 << IEEE80211_RADIOTAP_RATE) |
7885              (1 << IEEE80211_RADIOTAP_CHANNEL) |
7886              (1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL) |
7887              (1 << IEEE80211_RADIOTAP_DBM_ANTNOISE) |
7888              (1 << IEEE80211_RADIOTAP_ANTENNA));
7889
7890         /* Zero the flags, we'll add to them as we go */
7891         ipw_rt->rt_flags = 0;
7892
7893         ipw_rt->rt_tsf = tsf;
7894
7895         /* Convert to DBM */
7896         ipw_rt->rt_dbmsignal = signal;
7897         ipw_rt->rt_dbmnoise = noise;
7898
7899         /* Convert the channel data and set the flags */
7900         ipw_rt->rt_channel = cpu_to_le16(ieee80211chan2mhz(channel));
7901         if (channel > 14) {     /* 802.11a */
7902                 ipw_rt->rt_chbitmask =
7903                     cpu_to_le16((IEEE80211_CHAN_OFDM | IEEE80211_CHAN_5GHZ));
7904         } else if (phy_flags & (1 << 5)) {      /* 802.11b */
7905                 ipw_rt->rt_chbitmask =
7906                     cpu_to_le16((IEEE80211_CHAN_CCK | IEEE80211_CHAN_2GHZ));
7907         } else {                /* 802.11g */
7908                 ipw_rt->rt_chbitmask =
7909                     (IEEE80211_CHAN_OFDM | IEEE80211_CHAN_2GHZ);
7910         }
7911
7912         /* set the rate in multiples of 500k/s */
7913         switch (rate) {
7914         case IPW_TX_RATE_1MB:
7915                 ipw_rt->rt_rate = 2;
7916                 break;
7917         case IPW_TX_RATE_2MB:
7918                 ipw_rt->rt_rate = 4;
7919                 break;
7920         case IPW_TX_RATE_5MB:
7921                 ipw_rt->rt_rate = 10;
7922                 break;
7923         case IPW_TX_RATE_6MB:
7924                 ipw_rt->rt_rate = 12;
7925                 break;
7926         case IPW_TX_RATE_9MB:
7927                 ipw_rt->rt_rate = 18;
7928                 break;
7929         case IPW_TX_RATE_11MB:
7930                 ipw_rt->rt_rate = 22;
7931                 break;
7932         case IPW_TX_RATE_12MB:
7933                 ipw_rt->rt_rate = 24;
7934                 break;
7935         case IPW_TX_RATE_18MB:
7936                 ipw_rt->rt_rate = 36;
7937                 break;
7938         case IPW_TX_RATE_24MB:
7939                 ipw_rt->rt_rate = 48;
7940                 break;
7941         case IPW_TX_RATE_36MB:
7942                 ipw_rt->rt_rate = 72;
7943                 break;
7944         case IPW_TX_RATE_48MB:
7945                 ipw_rt->rt_rate = 96;
7946                 break;
7947         case IPW_TX_RATE_54MB:
7948                 ipw_rt->rt_rate = 108;
7949                 break;
7950         default:
7951                 ipw_rt->rt_rate = 0;
7952                 break;
7953         }
7954
7955         /* antenna number */
7956         ipw_rt->rt_antenna = (phy_flags & 3);
7957
7958         /* set the preamble flag if we have it */
7959         if (phy_flags & (1 << 6))
7960                 ipw_rt->rt_flags |= IEEE80211_RADIOTAP_F_SHORTPRE;
7961
7962         IPW_DEBUG_RX("Rx packet of %d bytes.\n", skb->len);
7963
7964         if (!ieee80211_rx(priv->prom_priv->ieee, skb, stats)) {
7965                 priv->prom_priv->ieee->stats.rx_errors++;
7966                 dev_kfree_skb_any(skb);
7967         }
7968 }
7969 #endif
7970
7971 static int is_network_packet(struct ipw_priv *priv,
7972                                     struct ieee80211_hdr_4addr *header)
7973 {
7974         /* Filter incoming packets to determine if they are targetted toward
7975          * this network, discarding packets coming from ourselves */
7976         switch (priv->ieee->iw_mode) {
7977         case IW_MODE_ADHOC:     /* Header: Dest. | Source    | BSSID */
7978                 /* packets from our adapter are dropped (echo) */
7979                 if (!memcmp(header->addr2, priv->net_dev->dev_addr, ETH_ALEN))
7980                         return 0;
7981
7982                 /* {broad,multi}cast packets to our BSSID go through */
7983                 if (is_multicast_ether_addr(header->addr1))
7984                         return !memcmp(header->addr3, priv->bssid, ETH_ALEN);
7985
7986                 /* packets to our adapter go through */
7987                 return !memcmp(header->addr1, priv->net_dev->dev_addr,
7988                                ETH_ALEN);
7989
7990         case IW_MODE_INFRA:     /* Header: Dest. | BSSID | Source */
7991                 /* packets from our adapter are dropped (echo) */
7992                 if (!memcmp(header->addr3, priv->net_dev->dev_addr, ETH_ALEN))
7993                         return 0;
7994
7995                 /* {broad,multi}cast packets to our BSS go through */
7996                 if (is_multicast_ether_addr(header->addr1))
7997                         return !memcmp(header->addr2, priv->bssid, ETH_ALEN);
7998
7999                 /* packets to our adapter go through */
8000                 return !memcmp(header->addr1, priv->net_dev->dev_addr,
8001                                ETH_ALEN);
8002         }
8003
8004         return 1;
8005 }
8006
8007 #define IPW_PACKET_RETRY_TIME HZ
8008
8009 static  int is_duplicate_packet(struct ipw_priv *priv,
8010                                       struct ieee80211_hdr_4addr *header)
8011 {
8012         u16 sc = le16_to_cpu(header->seq_ctl);
8013         u16 seq = WLAN_GET_SEQ_SEQ(sc);
8014         u16 frag = WLAN_GET_SEQ_FRAG(sc);
8015         u16 *last_seq, *last_frag;
8016         unsigned long *last_time;
8017
8018         switch (priv->ieee->iw_mode) {
8019         case IW_MODE_ADHOC:
8020                 {
8021                         struct list_head *p;
8022                         struct ipw_ibss_seq *entry = NULL;
8023                         u8 *mac = header->addr2;
8024                         int index = mac[5] % IPW_IBSS_MAC_HASH_SIZE;
8025
8026                         __list_for_each(p, &priv->ibss_mac_hash[index]) {
8027                                 entry =
8028                                     list_entry(p, struct ipw_ibss_seq, list);
8029                                 if (!memcmp(entry->mac, mac, ETH_ALEN))
8030                                         break;
8031                         }
8032                         if (p == &priv->ibss_mac_hash[index]) {
8033                                 entry = kmalloc(sizeof(*entry), GFP_ATOMIC);
8034                                 if (!entry) {
8035                                         IPW_ERROR
8036                                             ("Cannot malloc new mac entry\n");
8037                                         return 0;
8038                                 }
8039                                 memcpy(entry->mac, mac, ETH_ALEN);
8040                                 entry->seq_num = seq;
8041                                 entry->frag_num = frag;
8042                                 entry->packet_time = jiffies;
8043                                 list_add(&entry->list,
8044                                          &priv->ibss_mac_hash[index]);
8045                                 return 0;
8046                         }
8047                         last_seq = &entry->seq_num;
8048                         last_frag = &entry->frag_num;
8049                         last_time = &entry->packet_time;
8050                         break;
8051                 }
8052         case IW_MODE_INFRA:
8053                 last_seq = &priv->last_seq_num;
8054                 last_frag = &priv->last_frag_num;
8055                 last_time = &priv->last_packet_time;
8056                 break;
8057         default:
8058                 return 0;
8059         }
8060         if ((*last_seq == seq) &&
8061             time_after(*last_time + IPW_PACKET_RETRY_TIME, jiffies)) {
8062                 if (*last_frag == frag)
8063                         goto drop;
8064                 if (*last_frag + 1 != frag)
8065                         /* out-of-order fragment */
8066                         goto drop;
8067         } else
8068                 *last_seq = seq;
8069
8070         *last_frag = frag;
8071         *last_time = jiffies;
8072         return 0;
8073
8074       drop:
8075         /* Comment this line now since we observed the card receives
8076          * duplicate packets but the FCTL_RETRY bit is not set in the
8077          * IBSS mode with fragmentation enabled.
8078          BUG_ON(!(le16_to_cpu(header->frame_ctl) & IEEE80211_FCTL_RETRY)); */
8079         return 1;
8080 }
8081
8082 static void ipw_handle_mgmt_packet(struct ipw_priv *priv,
8083                                    struct ipw_rx_mem_buffer *rxb,
8084                                    struct ieee80211_rx_stats *stats)
8085 {
8086         struct sk_buff *skb = rxb->skb;
8087         struct ipw_rx_packet *pkt = (struct ipw_rx_packet *)skb->data;
8088         struct ieee80211_hdr_4addr *header = (struct ieee80211_hdr_4addr *)
8089             (skb->data + IPW_RX_FRAME_SIZE);
8090
8091         ieee80211_rx_mgt(priv->ieee, header, stats);
8092
8093         if (priv->ieee->iw_mode == IW_MODE_ADHOC &&
8094             ((WLAN_FC_GET_STYPE(le16_to_cpu(header->frame_ctl)) ==
8095               IEEE80211_STYPE_PROBE_RESP) ||
8096              (WLAN_FC_GET_STYPE(le16_to_cpu(header->frame_ctl)) ==
8097               IEEE80211_STYPE_BEACON))) {
8098                 if (!memcmp(header->addr3, priv->bssid, ETH_ALEN))
8099                         ipw_add_station(priv, header->addr2);
8100         }
8101
8102         if (priv->config & CFG_NET_STATS) {
8103                 IPW_DEBUG_HC("sending stat packet\n");
8104
8105                 /* Set the size of the skb to the size of the full
8106                  * ipw header and 802.11 frame */
8107                 skb_put(skb, le16_to_cpu(pkt->u.frame.length) +
8108                         IPW_RX_FRAME_SIZE);
8109
8110                 /* Advance past the ipw packet header to the 802.11 frame */
8111                 skb_pull(skb, IPW_RX_FRAME_SIZE);
8112
8113                 /* Push the ieee80211_rx_stats before the 802.11 frame */
8114                 memcpy(skb_push(skb, sizeof(*stats)), stats, sizeof(*stats));
8115
8116                 skb->dev = priv->ieee->dev;
8117
8118                 /* Point raw at the ieee80211_stats */
8119                 skb->mac.raw = skb->data;
8120
8121                 skb->pkt_type = PACKET_OTHERHOST;
8122                 skb->protocol = __constant_htons(ETH_P_80211_STATS);
8123                 memset(skb->cb, 0, sizeof(rxb->skb->cb));
8124                 netif_rx(skb);
8125                 rxb->skb = NULL;
8126         }
8127 }
8128
8129 /*
8130  * Main entry function for recieving a packet with 80211 headers.  This
8131  * should be called when ever the FW has notified us that there is a new
8132  * skb in the recieve queue.
8133  */
8134 static void ipw_rx(struct ipw_priv *priv)
8135 {
8136         struct ipw_rx_mem_buffer *rxb;
8137         struct ipw_rx_packet *pkt;
8138         struct ieee80211_hdr_4addr *header;
8139         u32 r, w, i;
8140         u8 network_packet;
8141
8142         r = ipw_read32(priv, IPW_RX_READ_INDEX);
8143         w = ipw_read32(priv, IPW_RX_WRITE_INDEX);
8144         i = (priv->rxq->processed + 1) % RX_QUEUE_SIZE;
8145
8146         while (i != r) {
8147                 rxb = priv->rxq->queue[i];
8148                 if (unlikely(rxb == NULL)) {
8149                         printk(KERN_CRIT "Queue not allocated!\n");
8150                         break;
8151                 }
8152                 priv->rxq->queue[i] = NULL;
8153
8154                 pci_dma_sync_single_for_cpu(priv->pci_dev, rxb->dma_addr,
8155                                             IPW_RX_BUF_SIZE,
8156                                             PCI_DMA_FROMDEVICE);
8157
8158                 pkt = (struct ipw_rx_packet *)rxb->skb->data;
8159                 IPW_DEBUG_RX("Packet: type=%02X seq=%02X bits=%02X\n",
8160                              pkt->header.message_type,
8161                              pkt->header.rx_seq_num, pkt->header.control_bits);
8162
8163                 switch (pkt->header.message_type) {
8164                 case RX_FRAME_TYPE:     /* 802.11 frame */  {
8165                                 struct ieee80211_rx_stats stats = {
8166                                         .rssi =
8167                                             le16_to_cpu(pkt->u.frame.rssi_dbm) -
8168                                             IPW_RSSI_TO_DBM,
8169                                         .signal =
8170                                             le16_to_cpu(pkt->u.frame.rssi_dbm) -
8171                                             IPW_RSSI_TO_DBM + 0x100,
8172                                         .noise =
8173                                             le16_to_cpu(pkt->u.frame.noise),
8174                                         .rate = pkt->u.frame.rate,
8175                                         .mac_time = jiffies,
8176                                         .received_channel =
8177                                             pkt->u.frame.received_channel,
8178                                         .freq =
8179                                             (pkt->u.frame.
8180                                              control & (1 << 0)) ?
8181                                             IEEE80211_24GHZ_BAND :
8182                                             IEEE80211_52GHZ_BAND,
8183                                         .len = le16_to_cpu(pkt->u.frame.length),
8184                                 };
8185
8186                                 if (stats.rssi != 0)
8187                                         stats.mask |= IEEE80211_STATMASK_RSSI;
8188                                 if (stats.signal != 0)
8189                                         stats.mask |= IEEE80211_STATMASK_SIGNAL;
8190                                 if (stats.noise != 0)
8191                                         stats.mask |= IEEE80211_STATMASK_NOISE;
8192                                 if (stats.rate != 0)
8193                                         stats.mask |= IEEE80211_STATMASK_RATE;
8194
8195                                 priv->rx_packets++;
8196
8197 #ifdef CONFIG_IPW2200_PROMISCUOUS
8198         if (priv->prom_net_dev && netif_running(priv->prom_net_dev))
8199                 ipw_handle_promiscuous_rx(priv, rxb, &stats);
8200 #endif
8201
8202 #ifdef CONFIG_IPW2200_MONITOR
8203                                 if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
8204 #ifdef CONFIG_IPW2200_RADIOTAP
8205
8206                 ipw_handle_data_packet_monitor(priv,
8207                                                rxb,
8208                                                &stats);
8209 #else
8210                 ipw_handle_data_packet(priv, rxb,
8211                                        &stats);
8212 #endif
8213                                         break;
8214                                 }
8215 #endif
8216
8217                                 header =
8218                                     (struct ieee80211_hdr_4addr *)(rxb->skb->
8219                                                                    data +
8220                                                                    IPW_RX_FRAME_SIZE);
8221                                 /* TODO: Check Ad-Hoc dest/source and make sure
8222                                  * that we are actually parsing these packets
8223                                  * correctly -- we should probably use the
8224                                  * frame control of the packet and disregard
8225                                  * the current iw_mode */
8226
8227                                 network_packet =
8228                                     is_network_packet(priv, header);
8229                                 if (network_packet && priv->assoc_network) {
8230                                         priv->assoc_network->stats.rssi =
8231                                             stats.rssi;
8232                                         priv->exp_avg_rssi =
8233                                             exponential_average(priv->exp_avg_rssi,
8234                                             stats.rssi, DEPTH_RSSI);
8235                                 }
8236
8237                                 IPW_DEBUG_RX("Frame: len=%u\n",
8238                                              le16_to_cpu(pkt->u.frame.length));
8239
8240                                 if (le16_to_cpu(pkt->u.frame.length) <
8241                                     ieee80211_get_hdrlen(le16_to_cpu(
8242                                                     header->frame_ctl))) {
8243                                         IPW_DEBUG_DROP
8244                                             ("Received packet is too small. "
8245                                              "Dropping.\n");
8246                                         priv->ieee->stats.rx_errors++;
8247                                         priv->wstats.discard.misc++;
8248                                         break;
8249                                 }
8250
8251                                 switch (WLAN_FC_GET_TYPE
8252                                         (le16_to_cpu(header->frame_ctl))) {
8253
8254                                 case IEEE80211_FTYPE_MGMT:
8255                                         ipw_handle_mgmt_packet(priv, rxb,
8256                                                                &stats);
8257                                         break;
8258
8259                                 case IEEE80211_FTYPE_CTL:
8260                                         break;
8261
8262                                 case IEEE80211_FTYPE_DATA:
8263                                         if (unlikely(!network_packet ||
8264                                                      is_duplicate_packet(priv,
8265                                                                          header)))
8266                                         {
8267                                                 IPW_DEBUG_DROP("Dropping: "
8268                                                                MAC_FMT ", "
8269                                                                MAC_FMT ", "
8270                                                                MAC_FMT "\n",
8271                                                                MAC_ARG(header->
8272                                                                        addr1),
8273                                                                MAC_ARG(header->
8274                                                                        addr2),
8275                                                                MAC_ARG(header->
8276                                                                        addr3));
8277                                                 break;
8278                                         }
8279
8280                                         ipw_handle_data_packet(priv, rxb,
8281                                                                &stats);
8282
8283                                         break;
8284                                 }
8285                                 break;
8286                         }
8287
8288                 case RX_HOST_NOTIFICATION_TYPE:{
8289                                 IPW_DEBUG_RX
8290                                     ("Notification: subtype=%02X flags=%02X size=%d\n",
8291                                      pkt->u.notification.subtype,
8292                                      pkt->u.notification.flags,
8293                                      pkt->u.notification.size);
8294                                 ipw_rx_notification(priv, &pkt->u.notification);
8295                                 break;
8296                         }
8297
8298                 default:
8299                         IPW_DEBUG_RX("Bad Rx packet of type %d\n",
8300                                      pkt->header.message_type);
8301                         break;
8302                 }
8303
8304                 /* For now we just don't re-use anything.  We can tweak this
8305                  * later to try and re-use notification packets and SKBs that
8306                  * fail to Rx correctly */
8307                 if (rxb->skb != NULL) {
8308                         dev_kfree_skb_any(rxb->skb);
8309                         rxb->skb = NULL;
8310                 }
8311
8312                 pci_unmap_single(priv->pci_dev, rxb->dma_addr,
8313                                  IPW_RX_BUF_SIZE, PCI_DMA_FROMDEVICE);
8314                 list_add_tail(&rxb->list, &priv->rxq->rx_used);
8315
8316                 i = (i + 1) % RX_QUEUE_SIZE;
8317         }
8318
8319         /* Backtrack one entry */
8320         priv->rxq->processed = (i ? i : RX_QUEUE_SIZE) - 1;
8321
8322         ipw_rx_queue_restock(priv);
8323 }
8324
8325 #define DEFAULT_RTS_THRESHOLD     2304U
8326 #define MIN_RTS_THRESHOLD         1U
8327 #define MAX_RTS_THRESHOLD         2304U
8328 #define DEFAULT_BEACON_INTERVAL   100U
8329 #define DEFAULT_SHORT_RETRY_LIMIT 7U
8330 #define DEFAULT_LONG_RETRY_LIMIT  4U
8331
8332 /**
8333  * ipw_sw_reset
8334  * @option: options to control different reset behaviour
8335  *          0 = reset everything except the 'disable' module_param
8336  *          1 = reset everything and print out driver info (for probe only)
8337  *          2 = reset everything
8338  */
8339 static int ipw_sw_reset(struct ipw_priv *priv, int option)
8340 {
8341         int band, modulation;
8342         int old_mode = priv->ieee->iw_mode;
8343
8344         /* Initialize module parameter values here */
8345         priv->config = 0;
8346
8347         /* We default to disabling the LED code as right now it causes
8348          * too many systems to lock up... */
8349         if (!led)
8350                 priv->config |= CFG_NO_LED;
8351
8352         if (associate)
8353                 priv->config |= CFG_ASSOCIATE;
8354         else
8355                 IPW_DEBUG_INFO("Auto associate disabled.\n");
8356
8357         if (auto_create)
8358                 priv->config |= CFG_ADHOC_CREATE;
8359         else
8360                 IPW_DEBUG_INFO("Auto adhoc creation disabled.\n");
8361
8362         priv->config &= ~CFG_STATIC_ESSID;
8363         priv->essid_len = 0;
8364         memset(priv->essid, 0, IW_ESSID_MAX_SIZE);
8365
8366         if (disable && option) {
8367                 priv->status |= STATUS_RF_KILL_SW;
8368                 IPW_DEBUG_INFO("Radio disabled.\n");
8369         }
8370
8371         if (channel != 0) {
8372                 priv->config |= CFG_STATIC_CHANNEL;
8373                 priv->channel = channel;
8374                 IPW_DEBUG_INFO("Bind to static channel %d\n", channel);
8375                 /* TODO: Validate that provided channel is in range */
8376         }
8377 #ifdef CONFIG_IPW2200_QOS
8378         ipw_qos_init(priv, qos_enable, qos_burst_enable,
8379                      burst_duration_CCK, burst_duration_OFDM);
8380 #endif                          /* CONFIG_IPW2200_QOS */
8381
8382         switch (mode) {
8383         case 1:
8384                 priv->ieee->iw_mode = IW_MODE_ADHOC;
8385                 priv->net_dev->type = ARPHRD_ETHER;
8386
8387                 break;
8388 #ifdef CONFIG_IPW2200_MONITOR
8389         case 2:
8390                 priv->ieee->iw_mode = IW_MODE_MONITOR;
8391 #ifdef CONFIG_IPW2200_RADIOTAP
8392                 priv->net_dev->type = ARPHRD_IEEE80211_RADIOTAP;
8393 #else
8394                 priv->net_dev->type = ARPHRD_IEEE80211;
8395 #endif
8396                 break;
8397 #endif
8398         default:
8399         case 0:
8400                 priv->net_dev->type = ARPHRD_ETHER;
8401                 priv->ieee->iw_mode = IW_MODE_INFRA;
8402                 break;
8403         }
8404
8405         if (hwcrypto) {
8406                 priv->ieee->host_encrypt = 0;
8407                 priv->ieee->host_encrypt_msdu = 0;
8408                 priv->ieee->host_decrypt = 0;
8409                 priv->ieee->host_mc_decrypt = 0;
8410         }
8411         IPW_DEBUG_INFO("Hardware crypto [%s]\n", hwcrypto ? "on" : "off");
8412
8413         /* IPW2200/2915 is abled to do hardware fragmentation. */
8414         priv->ieee->host_open_frag = 0;
8415
8416         if ((priv->pci_dev->device == 0x4223) ||
8417             (priv->pci_dev->device == 0x4224)) {
8418                 if (option == 1)
8419                         printk(KERN_INFO DRV_NAME
8420                                ": Detected Intel PRO/Wireless 2915ABG Network "
8421                                "Connection\n");
8422                 priv->ieee->abg_true = 1;
8423                 band = IEEE80211_52GHZ_BAND | IEEE80211_24GHZ_BAND;
8424                 modulation = IEEE80211_OFDM_MODULATION |
8425                     IEEE80211_CCK_MODULATION;
8426                 priv->adapter = IPW_2915ABG;
8427                 priv->ieee->mode = IEEE_A | IEEE_G | IEEE_B;
8428         } else {
8429                 if (option == 1)
8430                         printk(KERN_INFO DRV_NAME
8431                                ": Detected Intel PRO/Wireless 2200BG Network "
8432                                "Connection\n");
8433
8434                 priv->ieee->abg_true = 0;
8435                 band = IEEE80211_24GHZ_BAND;
8436                 modulation = IEEE80211_OFDM_MODULATION |
8437                     IEEE80211_CCK_MODULATION;
8438                 priv->adapter = IPW_2200BG;
8439                 priv->ieee->mode = IEEE_G | IEEE_B;
8440         }
8441
8442         priv->ieee->freq_band = band;
8443         priv->ieee->modulation = modulation;
8444
8445         priv->rates_mask = IEEE80211_DEFAULT_RATES_MASK;
8446
8447         priv->disassociate_threshold = IPW_MB_DISASSOCIATE_THRESHOLD_DEFAULT;
8448         priv->roaming_threshold = IPW_MB_ROAMING_THRESHOLD_DEFAULT;
8449
8450         priv->rts_threshold = DEFAULT_RTS_THRESHOLD;
8451         priv->short_retry_limit = DEFAULT_SHORT_RETRY_LIMIT;
8452         priv->long_retry_limit = DEFAULT_LONG_RETRY_LIMIT;
8453
8454         /* If power management is turned on, default to AC mode */
8455         priv->power_mode = IPW_POWER_AC;
8456         priv->tx_power = IPW_TX_POWER_DEFAULT;
8457
8458         return old_mode == priv->ieee->iw_mode;
8459 }
8460
8461 /*
8462  * This file defines the Wireless Extension handlers.  It does not
8463  * define any methods of hardware manipulation and relies on the
8464  * functions defined in ipw_main to provide the HW interaction.
8465  *
8466  * The exception to this is the use of the ipw_get_ordinal()
8467  * function used to poll the hardware vs. making unecessary calls.
8468  *
8469  */
8470
8471 static int ipw_wx_get_name(struct net_device *dev,
8472                            struct iw_request_info *info,
8473                            union iwreq_data *wrqu, char *extra)
8474 {
8475         struct ipw_priv *priv = ieee80211_priv(dev);
8476         mutex_lock(&priv->mutex);
8477         if (priv->status & STATUS_RF_KILL_MASK)
8478                 strcpy(wrqu->name, "radio off");
8479         else if (!(priv->status & STATUS_ASSOCIATED))
8480                 strcpy(wrqu->name, "unassociated");
8481         else
8482                 snprintf(wrqu->name, IFNAMSIZ, "IEEE 802.11%c",
8483                          ipw_modes[priv->assoc_request.ieee_mode]);
8484         IPW_DEBUG_WX("Name: %s\n", wrqu->name);
8485         mutex_unlock(&priv->mutex);
8486         return 0;
8487 }
8488
8489 static int ipw_set_channel(struct ipw_priv *priv, u8 channel)
8490 {
8491         if (channel == 0) {
8492                 IPW_DEBUG_INFO("Setting channel to ANY (0)\n");
8493                 priv->config &= ~CFG_STATIC_CHANNEL;
8494                 IPW_DEBUG_ASSOC("Attempting to associate with new "
8495                                 "parameters.\n");
8496                 ipw_associate(priv);
8497                 return 0;
8498         }
8499
8500         priv->config |= CFG_STATIC_CHANNEL;
8501
8502         if (priv->channel == channel) {
8503                 IPW_DEBUG_INFO("Request to set channel to current value (%d)\n",
8504                                channel);
8505                 return 0;
8506         }
8507
8508         IPW_DEBUG_INFO("Setting channel to %i\n", (int)channel);
8509         priv->channel = channel;
8510
8511 #ifdef CONFIG_IPW2200_MONITOR
8512         if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
8513                 int i;
8514                 if (priv->status & STATUS_SCANNING) {
8515                         IPW_DEBUG_SCAN("Scan abort triggered due to "
8516                                        "channel change.\n");
8517                         ipw_abort_scan(priv);
8518                 }
8519
8520                 for (i = 1000; i && (priv->status & STATUS_SCANNING); i--)
8521                         udelay(10);
8522
8523                 if (priv->status & STATUS_SCANNING)
8524                         IPW_DEBUG_SCAN("Still scanning...\n");
8525                 else
8526                         IPW_DEBUG_SCAN("Took %dms to abort current scan\n",
8527                                        1000 - i);
8528
8529                 return 0;
8530         }
8531 #endif                          /* CONFIG_IPW2200_MONITOR */
8532
8533         /* Network configuration changed -- force [re]association */
8534         IPW_DEBUG_ASSOC("[re]association triggered due to channel change.\n");
8535         if (!ipw_disassociate(priv))
8536                 ipw_associate(priv);
8537
8538         return 0;
8539 }
8540
8541 static int ipw_wx_set_freq(struct net_device *dev,
8542                            struct iw_request_info *info,
8543                            union iwreq_data *wrqu, char *extra)
8544 {
8545         struct ipw_priv *priv = ieee80211_priv(dev);
8546         const struct ieee80211_geo *geo = ieee80211_get_geo(priv->ieee);
8547         struct iw_freq *fwrq = &wrqu->freq;
8548         int ret = 0, i;
8549         u8 channel, flags;
8550         int band;
8551
8552         if (fwrq->m == 0) {
8553                 IPW_DEBUG_WX("SET Freq/Channel -> any\n");
8554                 mutex_lock(&priv->mutex);
8555                 ret = ipw_set_channel(priv, 0);
8556                 mutex_unlock(&priv->mutex);
8557                 return ret;
8558         }
8559         /* if setting by freq convert to channel */
8560         if (fwrq->e == 1) {
8561                 channel = ieee80211_freq_to_channel(priv->ieee, fwrq->m);
8562                 if (channel == 0)
8563                         return -EINVAL;
8564         } else
8565                 channel = fwrq->m;
8566
8567         if (!(band = ieee80211_is_valid_channel(priv->ieee, channel)))
8568                 return -EINVAL;
8569
8570         if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
8571                 i = ieee80211_channel_to_index(priv->ieee, channel);
8572                 if (i == -1)
8573                         return -EINVAL;
8574
8575                 flags = (band == IEEE80211_24GHZ_BAND) ?
8576                     geo->bg[i].flags : geo->a[i].flags;
8577                 if (flags & IEEE80211_CH_PASSIVE_ONLY) {
8578                         IPW_DEBUG_WX("Invalid Ad-Hoc channel for 802.11a\n");
8579                         return -EINVAL;
8580                 }
8581         }
8582
8583         IPW_DEBUG_WX("SET Freq/Channel -> %d \n", fwrq->m);
8584         mutex_lock(&priv->mutex);
8585         ret = ipw_set_channel(priv, channel);
8586         mutex_unlock(&priv->mutex);
8587         return ret;
8588 }
8589
8590 static int ipw_wx_get_freq(struct net_device *dev,
8591                            struct iw_request_info *info,
8592                            union iwreq_data *wrqu, char *extra)
8593 {
8594         struct ipw_priv *priv = ieee80211_priv(dev);
8595
8596         wrqu->freq.e = 0;
8597
8598         /* If we are associated, trying to associate, or have a statically
8599          * configured CHANNEL then return that; otherwise return ANY */
8600         mutex_lock(&priv->mutex);
8601         if (priv->config & CFG_STATIC_CHANNEL ||
8602             priv->status & (STATUS_ASSOCIATING | STATUS_ASSOCIATED))
8603                 wrqu->freq.m = priv->channel;
8604         else
8605                 wrqu->freq.m = 0;
8606
8607         mutex_unlock(&priv->mutex);
8608         IPW_DEBUG_WX("GET Freq/Channel -> %d \n", priv->channel);
8609         return 0;
8610 }
8611
8612 static int ipw_wx_set_mode(struct net_device *dev,
8613                            struct iw_request_info *info,
8614                            union iwreq_data *wrqu, char *extra)
8615 {
8616         struct ipw_priv *priv = ieee80211_priv(dev);
8617         int err = 0;
8618
8619         IPW_DEBUG_WX("Set MODE: %d\n", wrqu->mode);
8620
8621         switch (wrqu->mode) {
8622 #ifdef CONFIG_IPW2200_MONITOR
8623         case IW_MODE_MONITOR:
8624 #endif
8625         case IW_MODE_ADHOC:
8626         case IW_MODE_INFRA:
8627                 break;
8628         case IW_MODE_AUTO:
8629                 wrqu->mode = IW_MODE_INFRA;
8630                 break;
8631         default:
8632                 return -EINVAL;
8633         }
8634         if (wrqu->mode == priv->ieee->iw_mode)
8635                 return 0;
8636
8637         mutex_lock(&priv->mutex);
8638
8639         ipw_sw_reset(priv, 0);
8640
8641 #ifdef CONFIG_IPW2200_MONITOR
8642         if (priv->ieee->iw_mode == IW_MODE_MONITOR)
8643                 priv->net_dev->type = ARPHRD_ETHER;
8644
8645         if (wrqu->mode == IW_MODE_MONITOR)
8646 #ifdef CONFIG_IPW2200_RADIOTAP
8647                 priv->net_dev->type = ARPHRD_IEEE80211_RADIOTAP;
8648 #else
8649                 priv->net_dev->type = ARPHRD_IEEE80211;
8650 #endif
8651 #endif                          /* CONFIG_IPW2200_MONITOR */
8652
8653         /* Free the existing firmware and reset the fw_loaded
8654          * flag so ipw_load() will bring in the new firmawre */
8655         free_firmware();
8656
8657         priv->ieee->iw_mode = wrqu->mode;
8658
8659         queue_work(priv->workqueue, &priv->adapter_restart);
8660         mutex_unlock(&priv->mutex);
8661         return err;
8662 }
8663
8664 static int ipw_wx_get_mode(struct net_device *dev,
8665                            struct iw_request_info *info,
8666                            union iwreq_data *wrqu, char *extra)
8667 {
8668         struct ipw_priv *priv = ieee80211_priv(dev);
8669         mutex_lock(&priv->mutex);
8670         wrqu->mode = priv->ieee->iw_mode;
8671         IPW_DEBUG_WX("Get MODE -> %d\n", wrqu->mode);
8672         mutex_unlock(&priv->mutex);
8673         return 0;
8674 }
8675
8676 /* Values are in microsecond */
8677 static const s32 timeout_duration[] = {
8678         350000,
8679         250000,
8680         75000,
8681         37000,
8682         25000,
8683 };
8684
8685 static const s32 period_duration[] = {
8686         400000,
8687         700000,
8688         1000000,
8689         1000000,
8690         1000000
8691 };
8692
8693 static int ipw_wx_get_range(struct net_device *dev,
8694                             struct iw_request_info *info,
8695                             union iwreq_data *wrqu, char *extra)
8696 {
8697         struct ipw_priv *priv = ieee80211_priv(dev);
8698         struct iw_range *range = (struct iw_range *)extra;
8699         const struct ieee80211_geo *geo = ieee80211_get_geo(priv->ieee);
8700         int i = 0, j;
8701
8702         wrqu->data.length = sizeof(*range);
8703         memset(range, 0, sizeof(*range));
8704
8705         /* 54Mbs == ~27 Mb/s real (802.11g) */
8706         range->throughput = 27 * 1000 * 1000;
8707
8708         range->max_qual.qual = 100;
8709         /* TODO: Find real max RSSI and stick here */
8710         range->max_qual.level = 0;
8711         range->max_qual.noise = 0;
8712         range->max_qual.updated = 7;    /* Updated all three */
8713
8714         range->avg_qual.qual = 70;
8715         /* TODO: Find real 'good' to 'bad' threshol value for RSSI */
8716         range->avg_qual.level = 0;      /* FIXME to real average level */
8717         range->avg_qual.noise = 0;
8718         range->avg_qual.updated = 7;    /* Updated all three */
8719         mutex_lock(&priv->mutex);
8720         range->num_bitrates = min(priv->rates.num_rates, (u8) IW_MAX_BITRATES);
8721
8722         for (i = 0; i < range->num_bitrates; i++)
8723                 range->bitrate[i] = (priv->rates.supported_rates[i] & 0x7F) *
8724                     500000;
8725
8726         range->max_rts = DEFAULT_RTS_THRESHOLD;
8727         range->min_frag = MIN_FRAG_THRESHOLD;
8728         range->max_frag = MAX_FRAG_THRESHOLD;
8729
8730         range->encoding_size[0] = 5;
8731         range->encoding_size[1] = 13;
8732         range->num_encoding_sizes = 2;
8733         range->max_encoding_tokens = WEP_KEYS;
8734
8735         /* Set the Wireless Extension versions */
8736         range->we_version_compiled = WIRELESS_EXT;
8737         range->we_version_source = 18;
8738
8739         i = 0;
8740         if (priv->ieee->mode & (IEEE_B | IEEE_G)) {
8741                 for (j = 0; j < geo->bg_channels && i < IW_MAX_FREQUENCIES; j++) {
8742                         if ((priv->ieee->iw_mode == IW_MODE_ADHOC) &&
8743                             (geo->bg[j].flags & IEEE80211_CH_PASSIVE_ONLY))
8744                                 continue;
8745
8746                         range->freq[i].i = geo->bg[j].channel;
8747                         range->freq[i].m = geo->bg[j].freq * 100000;
8748                         range->freq[i].e = 1;
8749                         i++;
8750                 }
8751         }
8752
8753         if (priv->ieee->mode & IEEE_A) {
8754                 for (j = 0; j < geo->a_channels && i < IW_MAX_FREQUENCIES; j++) {
8755                         if ((priv->ieee->iw_mode == IW_MODE_ADHOC) &&
8756                             (geo->a[j].flags & IEEE80211_CH_PASSIVE_ONLY))
8757                                 continue;
8758
8759                         range->freq[i].i = geo->a[j].channel;
8760                         range->freq[i].m = geo->a[j].freq * 100000;
8761                         range->freq[i].e = 1;
8762                         i++;
8763                 }
8764         }
8765
8766         range->num_channels = i;
8767         range->num_frequency = i;
8768
8769         mutex_unlock(&priv->mutex);
8770
8771         /* Event capability (kernel + driver) */
8772         range->event_capa[0] = (IW_EVENT_CAPA_K_0 |
8773                                 IW_EVENT_CAPA_MASK(SIOCGIWTHRSPY) |
8774                                 IW_EVENT_CAPA_MASK(SIOCGIWAP) |
8775                                 IW_EVENT_CAPA_MASK(SIOCGIWSCAN));
8776         range->event_capa[1] = IW_EVENT_CAPA_K_1;
8777
8778         range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 |
8779                 IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP;
8780
8781         IPW_DEBUG_WX("GET Range\n");
8782         return 0;
8783 }
8784
8785 static int ipw_wx_set_wap(struct net_device *dev,
8786                           struct iw_request_info *info,
8787                           union iwreq_data *wrqu, char *extra)
8788 {
8789         struct ipw_priv *priv = ieee80211_priv(dev);
8790
8791         static const unsigned char any[] = {
8792                 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
8793         };
8794         static const unsigned char off[] = {
8795                 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
8796         };
8797
8798         if (wrqu->ap_addr.sa_family != ARPHRD_ETHER)
8799                 return -EINVAL;
8800         mutex_lock(&priv->mutex);
8801         if (!memcmp(any, wrqu->ap_addr.sa_data, ETH_ALEN) ||
8802             !memcmp(off, wrqu->ap_addr.sa_data, ETH_ALEN)) {
8803                 /* we disable mandatory BSSID association */
8804                 IPW_DEBUG_WX("Setting AP BSSID to ANY\n");
8805                 priv->config &= ~CFG_STATIC_BSSID;
8806                 IPW_DEBUG_ASSOC("Attempting to associate with new "
8807                                 "parameters.\n");
8808                 ipw_associate(priv);
8809                 mutex_unlock(&priv->mutex);
8810                 return 0;
8811         }
8812
8813         priv->config |= CFG_STATIC_BSSID;
8814         if (!memcmp(priv->bssid, wrqu->ap_addr.sa_data, ETH_ALEN)) {
8815                 IPW_DEBUG_WX("BSSID set to current BSSID.\n");
8816                 mutex_unlock(&priv->mutex);
8817                 return 0;
8818         }
8819
8820         IPW_DEBUG_WX("Setting mandatory BSSID to " MAC_FMT "\n",
8821                      MAC_ARG(wrqu->ap_addr.sa_data));
8822
8823         memcpy(priv->bssid, wrqu->ap_addr.sa_data, ETH_ALEN);
8824
8825         /* Network configuration changed -- force [re]association */
8826         IPW_DEBUG_ASSOC("[re]association triggered due to BSSID change.\n");
8827         if (!ipw_disassociate(priv))
8828                 ipw_associate(priv);
8829
8830         mutex_unlock(&priv->mutex);
8831         return 0;
8832 }
8833
8834 static int ipw_wx_get_wap(struct net_device *dev,
8835                           struct iw_request_info *info,
8836                           union iwreq_data *wrqu, char *extra)
8837 {
8838         struct ipw_priv *priv = ieee80211_priv(dev);
8839         /* If we are associated, trying to associate, or have a statically
8840          * configured BSSID then return that; otherwise return ANY */
8841         mutex_lock(&priv->mutex);
8842         if (priv->config & CFG_STATIC_BSSID ||
8843             priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)) {
8844                 wrqu->ap_addr.sa_family = ARPHRD_ETHER;
8845                 memcpy(wrqu->ap_addr.sa_data, priv->bssid, ETH_ALEN);
8846         } else
8847                 memset(wrqu->ap_addr.sa_data, 0, ETH_ALEN);
8848
8849         IPW_DEBUG_WX("Getting WAP BSSID: " MAC_FMT "\n",
8850                      MAC_ARG(wrqu->ap_addr.sa_data));
8851         mutex_unlock(&priv->mutex);
8852         return 0;
8853 }
8854
8855 static int ipw_wx_set_essid(struct net_device *dev,
8856                             struct iw_request_info *info,
8857                             union iwreq_data *wrqu, char *extra)
8858 {
8859         struct ipw_priv *priv = ieee80211_priv(dev);
8860         char *essid = "";       /* ANY */
8861         int length = 0;
8862         mutex_lock(&priv->mutex);
8863         if (wrqu->essid.flags && wrqu->essid.length) {
8864                 length = wrqu->essid.length - 1;
8865                 essid = extra;
8866         }
8867         if (length == 0) {
8868                 IPW_DEBUG_WX("Setting ESSID to ANY\n");
8869                 if ((priv->config & CFG_STATIC_ESSID) &&
8870                     !(priv->status & (STATUS_ASSOCIATED |
8871                                       STATUS_ASSOCIATING))) {
8872                         IPW_DEBUG_ASSOC("Attempting to associate with new "
8873                                         "parameters.\n");
8874                         priv->config &= ~CFG_STATIC_ESSID;
8875                         ipw_associate(priv);
8876                 }
8877                 mutex_unlock(&priv->mutex);
8878                 return 0;
8879         }
8880
8881         length = min(length, IW_ESSID_MAX_SIZE);
8882
8883         priv->config |= CFG_STATIC_ESSID;
8884
8885         if (priv->essid_len == length && !memcmp(priv->essid, extra, length)) {
8886                 IPW_DEBUG_WX("ESSID set to current ESSID.\n");
8887                 mutex_unlock(&priv->mutex);
8888                 return 0;
8889         }
8890
8891         IPW_DEBUG_WX("Setting ESSID: '%s' (%d)\n", escape_essid(essid, length),
8892                      length);
8893
8894         priv->essid_len = length;
8895         memcpy(priv->essid, essid, priv->essid_len);
8896
8897         /* Network configuration changed -- force [re]association */
8898         IPW_DEBUG_ASSOC("[re]association triggered due to ESSID change.\n");
8899         if (!ipw_disassociate(priv))
8900                 ipw_associate(priv);
8901
8902         mutex_unlock(&priv->mutex);
8903         return 0;
8904 }
8905
8906 static int ipw_wx_get_essid(struct net_device *dev,
8907                             struct iw_request_info *info,
8908                             union iwreq_data *wrqu, char *extra)
8909 {
8910         struct ipw_priv *priv = ieee80211_priv(dev);
8911
8912         /* If we are associated, trying to associate, or have a statically
8913          * configured ESSID then return that; otherwise return ANY */
8914         mutex_lock(&priv->mutex);
8915         if (priv->config & CFG_STATIC_ESSID ||
8916             priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)) {
8917                 IPW_DEBUG_WX("Getting essid: '%s'\n",
8918                              escape_essid(priv->essid, priv->essid_len));
8919                 memcpy(extra, priv->essid, priv->essid_len);
8920                 wrqu->essid.length = priv->essid_len;
8921                 wrqu->essid.flags = 1;  /* active */
8922         } else {
8923                 IPW_DEBUG_WX("Getting essid: ANY\n");
8924                 wrqu->essid.length = 0;
8925                 wrqu->essid.flags = 0;  /* active */
8926         }
8927         mutex_unlock(&priv->mutex);
8928         return 0;
8929 }
8930
8931 static int ipw_wx_set_nick(struct net_device *dev,
8932                            struct iw_request_info *info,
8933                            union iwreq_data *wrqu, char *extra)
8934 {
8935         struct ipw_priv *priv = ieee80211_priv(dev);
8936
8937         IPW_DEBUG_WX("Setting nick to '%s'\n", extra);
8938         if (wrqu->data.length > IW_ESSID_MAX_SIZE)
8939                 return -E2BIG;
8940         mutex_lock(&priv->mutex);
8941         wrqu->data.length = min((size_t) wrqu->data.length, sizeof(priv->nick));
8942         memset(priv->nick, 0, sizeof(priv->nick));
8943         memcpy(priv->nick, extra, wrqu->data.length);
8944         IPW_DEBUG_TRACE("<<\n");
8945         mutex_unlock(&priv->mutex);
8946         return 0;
8947
8948 }
8949
8950 static int ipw_wx_get_nick(struct net_device *dev,
8951                            struct iw_request_info *info,
8952                            union iwreq_data *wrqu, char *extra)
8953 {
8954         struct ipw_priv *priv = ieee80211_priv(dev);
8955         IPW_DEBUG_WX("Getting nick\n");
8956         mutex_lock(&priv->mutex);
8957         wrqu->data.length = strlen(priv->nick) + 1;
8958         memcpy(extra, priv->nick, wrqu->data.length);
8959         wrqu->data.flags = 1;   /* active */
8960         mutex_unlock(&priv->mutex);
8961         return 0;
8962 }
8963
8964 static int ipw_wx_set_sens(struct net_device *dev,
8965                             struct iw_request_info *info,
8966                             union iwreq_data *wrqu, char *extra)
8967 {
8968         struct ipw_priv *priv = ieee80211_priv(dev);
8969         int err = 0;
8970
8971         IPW_DEBUG_WX("Setting roaming threshold to %d\n", wrqu->sens.value);
8972         IPW_DEBUG_WX("Setting disassociate threshold to %d\n", 3*wrqu->sens.value);
8973         mutex_lock(&priv->mutex);
8974
8975         if (wrqu->sens.fixed == 0)
8976         {
8977                 priv->roaming_threshold = IPW_MB_ROAMING_THRESHOLD_DEFAULT;
8978                 priv->disassociate_threshold = IPW_MB_DISASSOCIATE_THRESHOLD_DEFAULT;
8979                 goto out;
8980         }
8981         if ((wrqu->sens.value > IPW_MB_ROAMING_THRESHOLD_MAX) ||
8982             (wrqu->sens.value < IPW_MB_ROAMING_THRESHOLD_MIN)) {
8983                 err = -EINVAL;
8984                 goto out;
8985         }
8986
8987         priv->roaming_threshold = wrqu->sens.value;
8988         priv->disassociate_threshold = 3*wrqu->sens.value;
8989       out:
8990         mutex_unlock(&priv->mutex);
8991         return err;
8992 }
8993
8994 static int ipw_wx_get_sens(struct net_device *dev,
8995                             struct iw_request_info *info,
8996                             union iwreq_data *wrqu, char *extra)
8997 {
8998         struct ipw_priv *priv = ieee80211_priv(dev);
8999         mutex_lock(&priv->mutex);
9000         wrqu->sens.fixed = 1;
9001         wrqu->sens.value = priv->roaming_threshold;
9002         mutex_unlock(&priv->mutex);
9003
9004         IPW_DEBUG_WX("GET roaming threshold -> %s %d \n",
9005                      wrqu->power.disabled ? "OFF" : "ON", wrqu->power.value);
9006
9007         return 0;
9008 }
9009
9010 static int ipw_wx_set_rate(struct net_device *dev,
9011                            struct iw_request_info *info,
9012                            union iwreq_data *wrqu, char *extra)
9013 {
9014         /* TODO: We should use semaphores or locks for access to priv */
9015         struct ipw_priv *priv = ieee80211_priv(dev);
9016         u32 target_rate = wrqu->bitrate.value;
9017         u32 fixed, mask;
9018
9019         /* value = -1, fixed = 0 means auto only, so we should use all rates offered by AP */
9020         /* value = X, fixed = 1 means only rate X */
9021         /* value = X, fixed = 0 means all rates lower equal X */
9022
9023         if (target_rate == -1) {
9024                 fixed = 0;
9025                 mask = IEEE80211_DEFAULT_RATES_MASK;
9026                 /* Now we should reassociate */
9027                 goto apply;
9028         }
9029
9030         mask = 0;
9031         fixed = wrqu->bitrate.fixed;
9032
9033         if (target_rate == 1000000 || !fixed)
9034                 mask |= IEEE80211_CCK_RATE_1MB_MASK;
9035         if (target_rate == 1000000)
9036                 goto apply;
9037
9038         if (target_rate == 2000000 || !fixed)
9039                 mask |= IEEE80211_CCK_RATE_2MB_MASK;
9040         if (target_rate == 2000000)
9041                 goto apply;
9042
9043         if (target_rate == 5500000 || !fixed)
9044                 mask |= IEEE80211_CCK_RATE_5MB_MASK;
9045         if (target_rate == 5500000)
9046                 goto apply;
9047
9048         if (target_rate == 6000000 || !fixed)
9049                 mask |= IEEE80211_OFDM_RATE_6MB_MASK;
9050         if (target_rate == 6000000)
9051                 goto apply;
9052
9053         if (target_rate == 9000000 || !fixed)
9054                 mask |= IEEE80211_OFDM_RATE_9MB_MASK;
9055         if (target_rate == 9000000)
9056                 goto apply;
9057
9058         if (target_rate == 11000000 || !fixed)
9059                 mask |= IEEE80211_CCK_RATE_11MB_MASK;
9060         if (target_rate == 11000000)
9061                 goto apply;
9062
9063         if (target_rate == 12000000 || !fixed)
9064                 mask |= IEEE80211_OFDM_RATE_12MB_MASK;
9065         if (target_rate == 12000000)
9066                 goto apply;
9067
9068         if (target_rate == 18000000 || !fixed)
9069                 mask |= IEEE80211_OFDM_RATE_18MB_MASK;
9070         if (target_rate == 18000000)
9071                 goto apply;
9072
9073         if (target_rate == 24000000 || !fixed)
9074                 mask |= IEEE80211_OFDM_RATE_24MB_MASK;
9075         if (target_rate == 24000000)
9076                 goto apply;
9077
9078         if (target_rate == 36000000 || !fixed)
9079                 mask |= IEEE80211_OFDM_RATE_36MB_MASK;
9080         if (target_rate == 36000000)
9081                 goto apply;
9082
9083         if (target_rate == 48000000 || !fixed)
9084                 mask |= IEEE80211_OFDM_RATE_48MB_MASK;
9085         if (target_rate == 48000000)
9086                 goto apply;
9087
9088         if (target_rate == 54000000 || !fixed)
9089                 mask |= IEEE80211_OFDM_RATE_54MB_MASK;
9090         if (target_rate == 54000000)
9091                 goto apply;
9092
9093         IPW_DEBUG_WX("invalid rate specified, returning error\n");
9094         return -EINVAL;
9095
9096       apply:
9097         IPW_DEBUG_WX("Setting rate mask to 0x%08X [%s]\n",
9098                      mask, fixed ? "fixed" : "sub-rates");
9099         mutex_lock(&priv->mutex);
9100         if (mask == IEEE80211_DEFAULT_RATES_MASK) {
9101                 priv->config &= ~CFG_FIXED_RATE;
9102                 ipw_set_fixed_rate(priv, priv->ieee->mode);
9103         } else
9104                 priv->config |= CFG_FIXED_RATE;
9105
9106         if (priv->rates_mask == mask) {
9107                 IPW_DEBUG_WX("Mask set to current mask.\n");
9108                 mutex_unlock(&priv->mutex);
9109                 return 0;
9110         }
9111
9112         priv->rates_mask = mask;
9113
9114         /* Network configuration changed -- force [re]association */
9115         IPW_DEBUG_ASSOC("[re]association triggered due to rates change.\n");
9116         if (!ipw_disassociate(priv))
9117                 ipw_associate(priv);
9118
9119         mutex_unlock(&priv->mutex);
9120         return 0;
9121 }
9122
9123 static int ipw_wx_get_rate(struct net_device *dev,
9124                            struct iw_request_info *info,
9125                            union iwreq_data *wrqu, char *extra)
9126 {
9127         struct ipw_priv *priv = ieee80211_priv(dev);
9128         mutex_lock(&priv->mutex);
9129         wrqu->bitrate.value = priv->last_rate;
9130         wrqu->bitrate.fixed = (priv->config & CFG_FIXED_RATE) ? 1 : 0;
9131         mutex_unlock(&priv->mutex);
9132         IPW_DEBUG_WX("GET Rate -> %d \n", wrqu->bitrate.value);
9133         return 0;
9134 }
9135
9136 static int ipw_wx_set_rts(struct net_device *dev,
9137                           struct iw_request_info *info,
9138                           union iwreq_data *wrqu, char *extra)
9139 {
9140         struct ipw_priv *priv = ieee80211_priv(dev);
9141         mutex_lock(&priv->mutex);
9142         if (wrqu->rts.disabled)
9143                 priv->rts_threshold = DEFAULT_RTS_THRESHOLD;
9144         else {
9145                 if (wrqu->rts.value < MIN_RTS_THRESHOLD ||
9146                     wrqu->rts.value > MAX_RTS_THRESHOLD) {
9147                         mutex_unlock(&priv->mutex);
9148                         return -EINVAL;
9149                 }
9150                 priv->rts_threshold = wrqu->rts.value;
9151         }
9152
9153         ipw_send_rts_threshold(priv, priv->rts_threshold);
9154         mutex_unlock(&priv->mutex);
9155         IPW_DEBUG_WX("SET RTS Threshold -> %d \n", priv->rts_threshold);
9156         return 0;
9157 }
9158
9159 static int ipw_wx_get_rts(struct net_device *dev,
9160                           struct iw_request_info *info,
9161                           union iwreq_data *wrqu, char *extra)
9162 {
9163         struct ipw_priv *priv = ieee80211_priv(dev);
9164         mutex_lock(&priv->mutex);
9165         wrqu->rts.value = priv->rts_threshold;
9166         wrqu->rts.fixed = 0;    /* no auto select */
9167         wrqu->rts.disabled = (wrqu->rts.value == DEFAULT_RTS_THRESHOLD);
9168         mutex_unlock(&priv->mutex);
9169         IPW_DEBUG_WX("GET RTS Threshold -> %d \n", wrqu->rts.value);
9170         return 0;
9171 }
9172
9173 static int ipw_wx_set_txpow(struct net_device *dev,
9174                             struct iw_request_info *info,
9175                             union iwreq_data *wrqu, char *extra)
9176 {
9177         struct ipw_priv *priv = ieee80211_priv(dev);
9178         int err = 0;
9179
9180         mutex_lock(&priv->mutex);
9181         if (ipw_radio_kill_sw(priv, wrqu->power.disabled)) {
9182                 err = -EINPROGRESS;
9183                 goto out;
9184         }
9185
9186         if (!wrqu->power.fixed)
9187                 wrqu->power.value = IPW_TX_POWER_DEFAULT;
9188
9189         if (wrqu->power.flags != IW_TXPOW_DBM) {
9190                 err = -EINVAL;
9191                 goto out;
9192         }
9193
9194         if ((wrqu->power.value > IPW_TX_POWER_MAX) ||
9195             (wrqu->power.value < IPW_TX_POWER_MIN)) {
9196                 err = -EINVAL;
9197                 goto out;
9198         }
9199
9200         priv->tx_power = wrqu->power.value;
9201         err = ipw_set_tx_power(priv);
9202       out:
9203         mutex_unlock(&priv->mutex);
9204         return err;
9205 }
9206
9207 static int ipw_wx_get_txpow(struct net_device *dev,
9208                             struct iw_request_info *info,
9209                             union iwreq_data *wrqu, char *extra)
9210 {
9211         struct ipw_priv *priv = ieee80211_priv(dev);
9212         mutex_lock(&priv->mutex);
9213         wrqu->power.value = priv->tx_power;
9214         wrqu->power.fixed = 1;
9215         wrqu->power.flags = IW_TXPOW_DBM;
9216         wrqu->power.disabled = (priv->status & STATUS_RF_KILL_MASK) ? 1 : 0;
9217         mutex_unlock(&priv->mutex);
9218
9219         IPW_DEBUG_WX("GET TX Power -> %s %d \n",
9220                      wrqu->power.disabled ? "OFF" : "ON", wrqu->power.value);
9221
9222         return 0;
9223 }
9224
9225 static int ipw_wx_set_frag(struct net_device *dev,
9226                            struct iw_request_info *info,
9227                            union iwreq_data *wrqu, char *extra)
9228 {
9229         struct ipw_priv *priv = ieee80211_priv(dev);
9230         mutex_lock(&priv->mutex);
9231         if (wrqu->frag.disabled)
9232                 priv->ieee->fts = DEFAULT_FTS;
9233         else {
9234                 if (wrqu->frag.value < MIN_FRAG_THRESHOLD ||
9235                     wrqu->frag.value > MAX_FRAG_THRESHOLD) {
9236                         mutex_unlock(&priv->mutex);
9237                         return -EINVAL;
9238                 }
9239
9240                 priv->ieee->fts = wrqu->frag.value & ~0x1;
9241         }
9242
9243         ipw_send_frag_threshold(priv, wrqu->frag.value);
9244         mutex_unlock(&priv->mutex);
9245         IPW_DEBUG_WX("SET Frag Threshold -> %d \n", wrqu->frag.value);
9246         return 0;
9247 }
9248
9249 static int ipw_wx_get_frag(struct net_device *dev,
9250                            struct iw_request_info *info,
9251                            union iwreq_data *wrqu, char *extra)
9252 {
9253         struct ipw_priv *priv = ieee80211_priv(dev);
9254         mutex_lock(&priv->mutex);
9255         wrqu->frag.value = priv->ieee->fts;
9256         wrqu->frag.fixed = 0;   /* no auto select */
9257         wrqu->frag.disabled = (wrqu->frag.value == DEFAULT_FTS);
9258         mutex_unlock(&priv->mutex);
9259         IPW_DEBUG_WX("GET Frag Threshold -> %d \n", wrqu->frag.value);
9260
9261         return 0;
9262 }
9263
9264 static int ipw_wx_set_retry(struct net_device *dev,
9265                             struct iw_request_info *info,
9266                             union iwreq_data *wrqu, char *extra)
9267 {
9268         struct ipw_priv *priv = ieee80211_priv(dev);
9269
9270         if (wrqu->retry.flags & IW_RETRY_LIFETIME || wrqu->retry.disabled)
9271                 return -EINVAL;
9272
9273         if (!(wrqu->retry.flags & IW_RETRY_LIMIT))
9274                 return 0;
9275
9276         if (wrqu->retry.value < 0 || wrqu->retry.value > 255)
9277                 return -EINVAL;
9278
9279         mutex_lock(&priv->mutex);
9280         if (wrqu->retry.flags & IW_RETRY_MIN)
9281                 priv->short_retry_limit = (u8) wrqu->retry.value;
9282         else if (wrqu->retry.flags & IW_RETRY_MAX)
9283                 priv->long_retry_limit = (u8) wrqu->retry.value;
9284         else {
9285                 priv->short_retry_limit = (u8) wrqu->retry.value;
9286                 priv->long_retry_limit = (u8) wrqu->retry.value;
9287         }
9288
9289         ipw_send_retry_limit(priv, priv->short_retry_limit,
9290                              priv->long_retry_limit);
9291         mutex_unlock(&priv->mutex);
9292         IPW_DEBUG_WX("SET retry limit -> short:%d long:%d\n",
9293                      priv->short_retry_limit, priv->long_retry_limit);
9294         return 0;
9295 }
9296
9297 static int ipw_wx_get_retry(struct net_device *dev,
9298                             struct iw_request_info *info,
9299                             union iwreq_data *wrqu, char *extra)
9300 {
9301         struct ipw_priv *priv = ieee80211_priv(dev);
9302
9303         mutex_lock(&priv->mutex);
9304         wrqu->retry.disabled = 0;
9305
9306         if ((wrqu->retry.flags & IW_RETRY_TYPE) == IW_RETRY_LIFETIME) {
9307                 mutex_unlock(&priv->mutex);
9308                 return -EINVAL;
9309         }
9310
9311         if (wrqu->retry.flags & IW_RETRY_MAX) {
9312                 wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_MAX;
9313                 wrqu->retry.value = priv->long_retry_limit;
9314         } else if (wrqu->retry.flags & IW_RETRY_MIN) {
9315                 wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_MIN;
9316                 wrqu->retry.value = priv->short_retry_limit;
9317         } else {
9318                 wrqu->retry.flags = IW_RETRY_LIMIT;
9319                 wrqu->retry.value = priv->short_retry_limit;
9320         }
9321         mutex_unlock(&priv->mutex);
9322
9323         IPW_DEBUG_WX("GET retry -> %d \n", wrqu->retry.value);
9324
9325         return 0;
9326 }
9327
9328 static int ipw_request_direct_scan(struct ipw_priv *priv, char *essid,
9329                                    int essid_len)
9330 {
9331         struct ipw_scan_request_ext scan;
9332         int err = 0, scan_type;
9333
9334         if (!(priv->status & STATUS_INIT) ||
9335             (priv->status & STATUS_EXIT_PENDING))
9336                 return 0;
9337
9338         mutex_lock(&priv->mutex);
9339
9340         if (priv->status & STATUS_RF_KILL_MASK) {
9341                 IPW_DEBUG_HC("Aborting scan due to RF kill activation\n");
9342                 priv->status |= STATUS_SCAN_PENDING;
9343                 goto done;
9344         }
9345
9346         IPW_DEBUG_HC("starting request direct scan!\n");
9347
9348         if (priv->status & (STATUS_SCANNING | STATUS_SCAN_ABORTING)) {
9349                 /* We should not sleep here; otherwise we will block most
9350                  * of the system (for instance, we hold rtnl_lock when we
9351                  * get here).
9352                  */
9353                 err = -EAGAIN;
9354                 goto done;
9355         }
9356         memset(&scan, 0, sizeof(scan));
9357
9358         if (priv->config & CFG_SPEED_SCAN)
9359                 scan.dwell_time[IPW_SCAN_ACTIVE_BROADCAST_SCAN] =
9360                     cpu_to_le16(30);
9361         else
9362                 scan.dwell_time[IPW_SCAN_ACTIVE_BROADCAST_SCAN] =
9363                     cpu_to_le16(20);
9364
9365         scan.dwell_time[IPW_SCAN_ACTIVE_BROADCAST_AND_DIRECT_SCAN] =
9366             cpu_to_le16(20);
9367         scan.dwell_time[IPW_SCAN_PASSIVE_FULL_DWELL_SCAN] = cpu_to_le16(120);
9368         scan.dwell_time[IPW_SCAN_ACTIVE_DIRECT_SCAN] = cpu_to_le16(20);
9369
9370         scan.full_scan_index = cpu_to_le32(ieee80211_get_scans(priv->ieee));
9371
9372         err = ipw_send_ssid(priv, essid, essid_len);
9373         if (err) {
9374                 IPW_DEBUG_HC("Attempt to send SSID command failed\n");
9375                 goto done;
9376         }
9377         scan_type = IPW_SCAN_ACTIVE_BROADCAST_AND_DIRECT_SCAN;
9378
9379         ipw_add_scan_channels(priv, &scan, scan_type);
9380
9381         err = ipw_send_scan_request_ext(priv, &scan);
9382         if (err) {
9383                 IPW_DEBUG_HC("Sending scan command failed: %08X\n", err);
9384                 goto done;
9385         }
9386
9387         priv->status |= STATUS_SCANNING;
9388
9389       done:
9390         mutex_unlock(&priv->mutex);
9391         return err;
9392 }
9393
9394 static int ipw_wx_set_scan(struct net_device *dev,
9395                            struct iw_request_info *info,
9396                            union iwreq_data *wrqu, char *extra)
9397 {
9398         struct ipw_priv *priv = ieee80211_priv(dev);
9399         struct iw_scan_req *req = NULL;
9400         if (wrqu->data.length
9401             && wrqu->data.length == sizeof(struct iw_scan_req)) {
9402                 req = (struct iw_scan_req *)extra;
9403                 if (wrqu->data.flags & IW_SCAN_THIS_ESSID) {
9404                         ipw_request_direct_scan(priv, req->essid,
9405                                                 req->essid_len);
9406                         return 0;
9407                 }
9408         }
9409
9410         IPW_DEBUG_WX("Start scan\n");
9411
9412         queue_work(priv->workqueue, &priv->request_scan);
9413
9414         return 0;
9415 }
9416
9417 static int ipw_wx_get_scan(struct net_device *dev,
9418                            struct iw_request_info *info,
9419                            union iwreq_data *wrqu, char *extra)
9420 {
9421         struct ipw_priv *priv = ieee80211_priv(dev);
9422         return ieee80211_wx_get_scan(priv->ieee, info, wrqu, extra);
9423 }
9424
9425 static int ipw_wx_set_encode(struct net_device *dev,
9426                              struct iw_request_info *info,
9427                              union iwreq_data *wrqu, char *key)
9428 {
9429         struct ipw_priv *priv = ieee80211_priv(dev);
9430         int ret;
9431         u32 cap = priv->capability;
9432
9433         mutex_lock(&priv->mutex);
9434         ret = ieee80211_wx_set_encode(priv->ieee, info, wrqu, key);
9435
9436         /* In IBSS mode, we need to notify the firmware to update
9437          * the beacon info after we changed the capability. */
9438         if (cap != priv->capability &&
9439             priv->ieee->iw_mode == IW_MODE_ADHOC &&
9440             priv->status & STATUS_ASSOCIATED)
9441                 ipw_disassociate(priv);
9442
9443         mutex_unlock(&priv->mutex);
9444         return ret;
9445 }
9446
9447 static int ipw_wx_get_encode(struct net_device *dev,
9448                              struct iw_request_info *info,
9449                              union iwreq_data *wrqu, char *key)
9450 {
9451         struct ipw_priv *priv = ieee80211_priv(dev);
9452         return ieee80211_wx_get_encode(priv->ieee, info, wrqu, key);
9453 }
9454
9455 static int ipw_wx_set_power(struct net_device *dev,
9456                             struct iw_request_info *info,
9457                             union iwreq_data *wrqu, char *extra)
9458 {
9459         struct ipw_priv *priv = ieee80211_priv(dev);
9460         int err;
9461         mutex_lock(&priv->mutex);
9462         if (wrqu->power.disabled) {
9463                 priv->power_mode = IPW_POWER_LEVEL(priv->power_mode);
9464                 err = ipw_send_power_mode(priv, IPW_POWER_MODE_CAM);
9465                 if (err) {
9466                         IPW_DEBUG_WX("failed setting power mode.\n");
9467                         mutex_unlock(&priv->mutex);
9468                         return err;
9469                 }
9470                 IPW_DEBUG_WX("SET Power Management Mode -> off\n");
9471                 mutex_unlock(&priv->mutex);
9472                 return 0;
9473         }
9474
9475         switch (wrqu->power.flags & IW_POWER_MODE) {
9476         case IW_POWER_ON:       /* If not specified */
9477         case IW_POWER_MODE:     /* If set all mask */
9478         case IW_POWER_ALL_R:    /* If explicitely state all */
9479                 break;
9480         default:                /* Otherwise we don't support it */
9481                 IPW_DEBUG_WX("SET PM Mode: %X not supported.\n",
9482                              wrqu->power.flags);
9483                 mutex_unlock(&priv->mutex);
9484                 return -EOPNOTSUPP;
9485         }
9486
9487         /* If the user hasn't specified a power management mode yet, default
9488          * to BATTERY */
9489         if (IPW_POWER_LEVEL(priv->power_mode) == IPW_POWER_AC)
9490                 priv->power_mode = IPW_POWER_ENABLED | IPW_POWER_BATTERY;
9491         else
9492                 priv->power_mode = IPW_POWER_ENABLED | priv->power_mode;
9493         err = ipw_send_power_mode(priv, IPW_POWER_LEVEL(priv->power_mode));
9494         if (err) {
9495                 IPW_DEBUG_WX("failed setting power mode.\n");
9496                 mutex_unlock(&priv->mutex);
9497                 return err;
9498         }
9499
9500         IPW_DEBUG_WX("SET Power Management Mode -> 0x%02X\n", priv->power_mode);
9501         mutex_unlock(&priv->mutex);
9502         return 0;
9503 }
9504
9505 static int ipw_wx_get_power(struct net_device *dev,
9506                             struct iw_request_info *info,
9507                             union iwreq_data *wrqu, char *extra)
9508 {
9509         struct ipw_priv *priv = ieee80211_priv(dev);
9510         mutex_lock(&priv->mutex);
9511         if (!(priv->power_mode & IPW_POWER_ENABLED))
9512                 wrqu->power.disabled = 1;
9513         else
9514                 wrqu->power.disabled = 0;
9515
9516         mutex_unlock(&priv->mutex);
9517         IPW_DEBUG_WX("GET Power Management Mode -> %02X\n", priv->power_mode);
9518
9519         return 0;
9520 }
9521
9522 static int ipw_wx_set_powermode(struct net_device *dev,
9523                                 struct iw_request_info *info,
9524                                 union iwreq_data *wrqu, char *extra)
9525 {
9526         struct ipw_priv *priv = ieee80211_priv(dev);
9527         int mode = *(int *)extra;
9528         int err;
9529         mutex_lock(&priv->mutex);
9530         if ((mode < 1) || (mode > IPW_POWER_LIMIT)) {
9531                 mode = IPW_POWER_AC;
9532                 priv->power_mode = mode;
9533         } else {
9534                 priv->power_mode = IPW_POWER_ENABLED | mode;
9535         }
9536
9537         if (priv->power_mode != mode) {
9538                 err = ipw_send_power_mode(priv, mode);
9539
9540                 if (err) {
9541                         IPW_DEBUG_WX("failed setting power mode.\n");
9542                         mutex_unlock(&priv->mutex);
9543                         return err;
9544                 }
9545         }
9546         mutex_unlock(&priv->mutex);
9547         return 0;
9548 }
9549
9550 #define MAX_WX_STRING 80
9551 static int ipw_wx_get_powermode(struct net_device *dev,
9552                                 struct iw_request_info *info,
9553                                 union iwreq_data *wrqu, char *extra)
9554 {
9555         struct ipw_priv *priv = ieee80211_priv(dev);
9556         int level = IPW_POWER_LEVEL(priv->power_mode);
9557         char *p = extra;
9558
9559         p += snprintf(p, MAX_WX_STRING, "Power save level: %d ", level);
9560
9561         switch (level) {
9562         case IPW_POWER_AC:
9563                 p += snprintf(p, MAX_WX_STRING - (p - extra), "(AC)");
9564                 break;
9565         case IPW_POWER_BATTERY:
9566                 p += snprintf(p, MAX_WX_STRING - (p - extra), "(BATTERY)");
9567                 break;
9568         default:
9569                 p += snprintf(p, MAX_WX_STRING - (p - extra),
9570                               "(Timeout %dms, Period %dms)",
9571                               timeout_duration[level - 1] / 1000,
9572                               period_duration[level - 1] / 1000);
9573         }
9574
9575         if (!(priv->power_mode & IPW_POWER_ENABLED))
9576                 p += snprintf(p, MAX_WX_STRING - (p - extra), " OFF");
9577
9578         wrqu->data.length = p - extra + 1;
9579
9580         return 0;
9581 }
9582
9583 static int ipw_wx_set_wireless_mode(struct net_device *dev,
9584                                     struct iw_request_info *info,
9585                                     union iwreq_data *wrqu, char *extra)
9586 {
9587         struct ipw_priv *priv = ieee80211_priv(dev);
9588         int mode = *(int *)extra;
9589         u8 band = 0, modulation = 0;
9590
9591         if (mode == 0 || mode & ~IEEE_MODE_MASK) {
9592                 IPW_WARNING("Attempt to set invalid wireless mode: %d\n", mode);
9593                 return -EINVAL;
9594         }
9595         mutex_lock(&priv->mutex);
9596         if (priv->adapter == IPW_2915ABG) {
9597                 priv->ieee->abg_true = 1;
9598                 if (mode & IEEE_A) {
9599                         band |= IEEE80211_52GHZ_BAND;
9600                         modulation |= IEEE80211_OFDM_MODULATION;
9601                 } else
9602                         priv->ieee->abg_true = 0;
9603         } else {
9604                 if (mode & IEEE_A) {
9605                         IPW_WARNING("Attempt to set 2200BG into "
9606                                     "802.11a mode\n");
9607                         mutex_unlock(&priv->mutex);
9608                         return -EINVAL;
9609                 }
9610
9611                 priv->ieee->abg_true = 0;
9612         }
9613
9614         if (mode & IEEE_B) {
9615                 band |= IEEE80211_24GHZ_BAND;
9616                 modulation |= IEEE80211_CCK_MODULATION;
9617         } else
9618                 priv->ieee->abg_true = 0;
9619
9620         if (mode & IEEE_G) {
9621                 band |= IEEE80211_24GHZ_BAND;
9622                 modulation |= IEEE80211_OFDM_MODULATION;
9623         } else
9624                 priv->ieee->abg_true = 0;
9625
9626         priv->ieee->mode = mode;
9627         priv->ieee->freq_band = band;
9628         priv->ieee->modulation = modulation;
9629         init_supported_rates(priv, &priv->rates);
9630
9631         /* Network configuration changed -- force [re]association */
9632         IPW_DEBUG_ASSOC("[re]association triggered due to mode change.\n");
9633         if (!ipw_disassociate(priv)) {
9634                 ipw_send_supported_rates(priv, &priv->rates);
9635                 ipw_associate(priv);
9636         }
9637
9638         /* Update the band LEDs */
9639         ipw_led_band_on(priv);
9640
9641         IPW_DEBUG_WX("PRIV SET MODE: %c%c%c\n",
9642                      mode & IEEE_A ? 'a' : '.',
9643                      mode & IEEE_B ? 'b' : '.', mode & IEEE_G ? 'g' : '.');
9644         mutex_unlock(&priv->mutex);
9645         return 0;
9646 }
9647
9648 static int ipw_wx_get_wireless_mode(struct net_device *dev,
9649                                     struct iw_request_info *info,
9650                                     union iwreq_data *wrqu, char *extra)
9651 {
9652         struct ipw_priv *priv = ieee80211_priv(dev);
9653         mutex_lock(&priv->mutex);
9654         switch (priv->ieee->mode) {
9655         case IEEE_A:
9656                 strncpy(extra, "802.11a (1)", MAX_WX_STRING);
9657                 break;
9658         case IEEE_B:
9659                 strncpy(extra, "802.11b (2)", MAX_WX_STRING);
9660                 break;
9661         case IEEE_A | IEEE_B:
9662                 strncpy(extra, "802.11ab (3)", MAX_WX_STRING);
9663                 break;
9664         case IEEE_G:
9665                 strncpy(extra, "802.11g (4)", MAX_WX_STRING);
9666                 break;
9667         case IEEE_A | IEEE_G:
9668                 strncpy(extra, "802.11ag (5)", MAX_WX_STRING);
9669                 break;
9670         case IEEE_B | IEEE_G:
9671                 strncpy(extra, "802.11bg (6)", MAX_WX_STRING);
9672                 break;
9673         case IEEE_A | IEEE_B | IEEE_G:
9674                 strncpy(extra, "802.11abg (7)", MAX_WX_STRING);
9675                 break;
9676         default:
9677                 strncpy(extra, "unknown", MAX_WX_STRING);
9678                 break;
9679         }
9680
9681         IPW_DEBUG_WX("PRIV GET MODE: %s\n", extra);
9682
9683         wrqu->data.length = strlen(extra) + 1;
9684         mutex_unlock(&priv->mutex);
9685
9686         return 0;
9687 }
9688
9689 static int ipw_wx_set_preamble(struct net_device *dev,
9690                                struct iw_request_info *info,
9691                                union iwreq_data *wrqu, char *extra)
9692 {
9693         struct ipw_priv *priv = ieee80211_priv(dev);
9694         int mode = *(int *)extra;
9695         mutex_lock(&priv->mutex);
9696         /* Switching from SHORT -> LONG requires a disassociation */
9697         if (mode == 1) {
9698                 if (!(priv->config & CFG_PREAMBLE_LONG)) {
9699                         priv->config |= CFG_PREAMBLE_LONG;
9700
9701                         /* Network configuration changed -- force [re]association */
9702                         IPW_DEBUG_ASSOC
9703                             ("[re]association triggered due to preamble change.\n");
9704                         if (!ipw_disassociate(priv))
9705                                 ipw_associate(priv);
9706                 }
9707                 goto done;
9708         }
9709
9710         if (mode == 0) {
9711                 priv->config &= ~CFG_PREAMBLE_LONG;
9712                 goto done;
9713         }
9714         mutex_unlock(&priv->mutex);
9715         return -EINVAL;
9716
9717       done:
9718         mutex_unlock(&priv->mutex);
9719         return 0;
9720 }
9721
9722 static int ipw_wx_get_preamble(struct net_device *dev,
9723                                struct iw_request_info *info,
9724                                union iwreq_data *wrqu, char *extra)
9725 {
9726         struct ipw_priv *priv = ieee80211_priv(dev);
9727         mutex_lock(&priv->mutex);
9728         if (priv->config & CFG_PREAMBLE_LONG)
9729                 snprintf(wrqu->name, IFNAMSIZ, "long (1)");
9730         else
9731                 snprintf(wrqu->name, IFNAMSIZ, "auto (0)");
9732         mutex_unlock(&priv->mutex);
9733         return 0;
9734 }
9735
9736 #ifdef CONFIG_IPW2200_MONITOR
9737 static int ipw_wx_set_monitor(struct net_device *dev,
9738                               struct iw_request_info *info,
9739                               union iwreq_data *wrqu, char *extra)
9740 {
9741         struct ipw_priv *priv = ieee80211_priv(dev);
9742         int *parms = (int *)extra;
9743         int enable = (parms[0] > 0);
9744         mutex_lock(&priv->mutex);
9745         IPW_DEBUG_WX("SET MONITOR: %d %d\n", enable, parms[1]);
9746         if (enable) {
9747                 if (priv->ieee->iw_mode != IW_MODE_MONITOR) {
9748 #ifdef CONFIG_IPW2200_RADIOTAP
9749                         priv->net_dev->type = ARPHRD_IEEE80211_RADIOTAP;
9750 #else
9751                         priv->net_dev->type = ARPHRD_IEEE80211;
9752 #endif
9753                         queue_work(priv->workqueue, &priv->adapter_restart);
9754                 }
9755
9756                 ipw_set_channel(priv, parms[1]);
9757         } else {
9758                 if (priv->ieee->iw_mode != IW_MODE_MONITOR) {
9759                         mutex_unlock(&priv->mutex);
9760                         return 0;
9761                 }
9762                 priv->net_dev->type = ARPHRD_ETHER;
9763                 queue_work(priv->workqueue, &priv->adapter_restart);
9764         }
9765         mutex_unlock(&priv->mutex);
9766         return 0;
9767 }
9768
9769 #endif                          // CONFIG_IPW2200_MONITOR
9770
9771 static int ipw_wx_reset(struct net_device *dev,
9772                         struct iw_request_info *info,
9773                         union iwreq_data *wrqu, char *extra)
9774 {
9775         struct ipw_priv *priv = ieee80211_priv(dev);
9776         IPW_DEBUG_WX("RESET\n");
9777         queue_work(priv->workqueue, &priv->adapter_restart);
9778         return 0;
9779 }
9780
9781 static int ipw_wx_sw_reset(struct net_device *dev,
9782                            struct iw_request_info *info,
9783                            union iwreq_data *wrqu, char *extra)
9784 {
9785         struct ipw_priv *priv = ieee80211_priv(dev);
9786         union iwreq_data wrqu_sec = {
9787                 .encoding = {
9788                              .flags = IW_ENCODE_DISABLED,
9789                              },
9790         };
9791         int ret;
9792
9793         IPW_DEBUG_WX("SW_RESET\n");
9794
9795         mutex_lock(&priv->mutex);
9796
9797         ret = ipw_sw_reset(priv, 2);
9798         if (!ret) {
9799                 free_firmware();
9800                 ipw_adapter_restart(priv);
9801         }
9802
9803         /* The SW reset bit might have been toggled on by the 'disable'
9804          * module parameter, so take appropriate action */
9805         ipw_radio_kill_sw(priv, priv->status & STATUS_RF_KILL_SW);
9806
9807         mutex_unlock(&priv->mutex);
9808         ieee80211_wx_set_encode(priv->ieee, info, &wrqu_sec, NULL);
9809         mutex_lock(&priv->mutex);
9810
9811         if (!(priv->status & STATUS_RF_KILL_MASK)) {
9812                 /* Configuration likely changed -- force [re]association */
9813                 IPW_DEBUG_ASSOC("[re]association triggered due to sw "
9814                                 "reset.\n");
9815                 if (!ipw_disassociate(priv))
9816                         ipw_associate(priv);
9817         }
9818
9819         mutex_unlock(&priv->mutex);
9820
9821         return 0;
9822 }
9823
9824 /* Rebase the WE IOCTLs to zero for the handler array */
9825 #define IW_IOCTL(x) [(x)-SIOCSIWCOMMIT]
9826 static iw_handler ipw_wx_handlers[] = {
9827         IW_IOCTL(SIOCGIWNAME) = ipw_wx_get_name,
9828         IW_IOCTL(SIOCSIWFREQ) = ipw_wx_set_freq,
9829         IW_IOCTL(SIOCGIWFREQ) = ipw_wx_get_freq,
9830         IW_IOCTL(SIOCSIWMODE) = ipw_wx_set_mode,
9831         IW_IOCTL(SIOCGIWMODE) = ipw_wx_get_mode,
9832         IW_IOCTL(SIOCSIWSENS) = ipw_wx_set_sens,
9833         IW_IOCTL(SIOCGIWSENS) = ipw_wx_get_sens,
9834         IW_IOCTL(SIOCGIWRANGE) = ipw_wx_get_range,
9835         IW_IOCTL(SIOCSIWAP) = ipw_wx_set_wap,
9836         IW_IOCTL(SIOCGIWAP) = ipw_wx_get_wap,
9837         IW_IOCTL(SIOCSIWSCAN) = ipw_wx_set_scan,
9838         IW_IOCTL(SIOCGIWSCAN) = ipw_wx_get_scan,
9839         IW_IOCTL(SIOCSIWESSID) = ipw_wx_set_essid,
9840         IW_IOCTL(SIOCGIWESSID) = ipw_wx_get_essid,
9841         IW_IOCTL(SIOCSIWNICKN) = ipw_wx_set_nick,
9842         IW_IOCTL(SIOCGIWNICKN) = ipw_wx_get_nick,
9843         IW_IOCTL(SIOCSIWRATE) = ipw_wx_set_rate,
9844         IW_IOCTL(SIOCGIWRATE) = ipw_wx_get_rate,
9845         IW_IOCTL(SIOCSIWRTS) = ipw_wx_set_rts,
9846         IW_IOCTL(SIOCGIWRTS) = ipw_wx_get_rts,
9847         IW_IOCTL(SIOCSIWFRAG) = ipw_wx_set_frag,
9848         IW_IOCTL(SIOCGIWFRAG) = ipw_wx_get_frag,
9849         IW_IOCTL(SIOCSIWTXPOW) = ipw_wx_set_txpow,
9850         IW_IOCTL(SIOCGIWTXPOW) = ipw_wx_get_txpow,
9851         IW_IOCTL(SIOCSIWRETRY) = ipw_wx_set_retry,
9852         IW_IOCTL(SIOCGIWRETRY) = ipw_wx_get_retry,
9853         IW_IOCTL(SIOCSIWENCODE) = ipw_wx_set_encode,
9854         IW_IOCTL(SIOCGIWENCODE) = ipw_wx_get_encode,
9855         IW_IOCTL(SIOCSIWPOWER) = ipw_wx_set_power,
9856         IW_IOCTL(SIOCGIWPOWER) = ipw_wx_get_power,
9857         IW_IOCTL(SIOCSIWSPY) = iw_handler_set_spy,
9858         IW_IOCTL(SIOCGIWSPY) = iw_handler_get_spy,
9859         IW_IOCTL(SIOCSIWTHRSPY) = iw_handler_set_thrspy,
9860         IW_IOCTL(SIOCGIWTHRSPY) = iw_handler_get_thrspy,
9861         IW_IOCTL(SIOCSIWGENIE) = ipw_wx_set_genie,
9862         IW_IOCTL(SIOCGIWGENIE) = ipw_wx_get_genie,
9863         IW_IOCTL(SIOCSIWMLME) = ipw_wx_set_mlme,
9864         IW_IOCTL(SIOCSIWAUTH) = ipw_wx_set_auth,
9865         IW_IOCTL(SIOCGIWAUTH) = ipw_wx_get_auth,
9866         IW_IOCTL(SIOCSIWENCODEEXT) = ipw_wx_set_encodeext,
9867         IW_IOCTL(SIOCGIWENCODEEXT) = ipw_wx_get_encodeext,
9868 };
9869
9870 enum {
9871         IPW_PRIV_SET_POWER = SIOCIWFIRSTPRIV,
9872         IPW_PRIV_GET_POWER,
9873         IPW_PRIV_SET_MODE,
9874         IPW_PRIV_GET_MODE,
9875         IPW_PRIV_SET_PREAMBLE,
9876         IPW_PRIV_GET_PREAMBLE,
9877         IPW_PRIV_RESET,
9878         IPW_PRIV_SW_RESET,
9879 #ifdef CONFIG_IPW2200_MONITOR
9880         IPW_PRIV_SET_MONITOR,
9881 #endif
9882 };
9883
9884 static struct iw_priv_args ipw_priv_args[] = {
9885         {
9886          .cmd = IPW_PRIV_SET_POWER,
9887          .set_args = IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
9888          .name = "set_power"},
9889         {
9890          .cmd = IPW_PRIV_GET_POWER,
9891          .get_args = IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | MAX_WX_STRING,
9892          .name = "get_power"},
9893         {
9894          .cmd = IPW_PRIV_SET_MODE,
9895          .set_args = IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
9896          .name = "set_mode"},
9897         {
9898          .cmd = IPW_PRIV_GET_MODE,
9899          .get_args = IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | MAX_WX_STRING,
9900          .name = "get_mode"},
9901         {
9902          .cmd = IPW_PRIV_SET_PREAMBLE,
9903          .set_args = IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
9904          .name = "set_preamble"},
9905         {
9906          .cmd = IPW_PRIV_GET_PREAMBLE,
9907          .get_args = IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | IFNAMSIZ,
9908          .name = "get_preamble"},
9909         {
9910          IPW_PRIV_RESET,
9911          IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 0, 0, "reset"},
9912         {
9913          IPW_PRIV_SW_RESET,
9914          IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 0, 0, "sw_reset"},
9915 #ifdef CONFIG_IPW2200_MONITOR
9916         {
9917          IPW_PRIV_SET_MONITOR,
9918          IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 2, 0, "monitor"},
9919 #endif                          /* CONFIG_IPW2200_MONITOR */
9920 };
9921
9922 static iw_handler ipw_priv_handler[] = {
9923         ipw_wx_set_powermode,
9924         ipw_wx_get_powermode,
9925         ipw_wx_set_wireless_mode,
9926         ipw_wx_get_wireless_mode,
9927         ipw_wx_set_preamble,
9928         ipw_wx_get_preamble,
9929         ipw_wx_reset,
9930         ipw_wx_sw_reset,
9931 #ifdef CONFIG_IPW2200_MONITOR
9932         ipw_wx_set_monitor,
9933 #endif
9934 };
9935
9936 static struct iw_handler_def ipw_wx_handler_def = {
9937         .standard = ipw_wx_handlers,
9938         .num_standard = ARRAY_SIZE(ipw_wx_handlers),
9939         .num_private = ARRAY_SIZE(ipw_priv_handler),
9940         .num_private_args = ARRAY_SIZE(ipw_priv_args),
9941         .private = ipw_priv_handler,
9942         .private_args = ipw_priv_args,
9943         .get_wireless_stats = ipw_get_wireless_stats,
9944 };
9945
9946 /*
9947  * Get wireless statistics.
9948  * Called by /proc/net/wireless
9949  * Also called by SIOCGIWSTATS
9950  */
9951 static struct iw_statistics *ipw_get_wireless_stats(struct net_device *dev)
9952 {
9953         struct ipw_priv *priv = ieee80211_priv(dev);
9954         struct iw_statistics *wstats;
9955
9956         wstats = &priv->wstats;
9957
9958         /* if hw is disabled, then ipw_get_ordinal() can't be called.
9959          * netdev->get_wireless_stats seems to be called before fw is
9960          * initialized.  STATUS_ASSOCIATED will only be set if the hw is up
9961          * and associated; if not associcated, the values are all meaningless
9962          * anyway, so set them all to NULL and INVALID */
9963         if (!(priv->status & STATUS_ASSOCIATED)) {
9964                 wstats->miss.beacon = 0;
9965                 wstats->discard.retries = 0;
9966                 wstats->qual.qual = 0;
9967                 wstats->qual.level = 0;
9968                 wstats->qual.noise = 0;
9969                 wstats->qual.updated = 7;
9970                 wstats->qual.updated |= IW_QUAL_NOISE_INVALID |
9971                     IW_QUAL_QUAL_INVALID | IW_QUAL_LEVEL_INVALID;
9972                 return wstats;
9973         }
9974
9975         wstats->qual.qual = priv->quality;
9976         wstats->qual.level = priv->exp_avg_rssi;
9977         wstats->qual.noise = priv->exp_avg_noise;
9978         wstats->qual.updated = IW_QUAL_QUAL_UPDATED | IW_QUAL_LEVEL_UPDATED |
9979             IW_QUAL_NOISE_UPDATED | IW_QUAL_DBM;
9980
9981         wstats->miss.beacon = average_value(&priv->average_missed_beacons);
9982         wstats->discard.retries = priv->last_tx_failures;
9983         wstats->discard.code = priv->ieee->ieee_stats.rx_discards_undecryptable;
9984
9985 /*      if (ipw_get_ordinal(priv, IPW_ORD_STAT_TX_RETRY, &tx_retry, &len))
9986         goto fail_get_ordinal;
9987         wstats->discard.retries += tx_retry; */
9988
9989         return wstats;
9990 }
9991
9992 /* net device stuff */
9993
9994 static  void init_sys_config(struct ipw_sys_config *sys_config)
9995 {
9996         memset(sys_config, 0, sizeof(struct ipw_sys_config));
9997         sys_config->bt_coexistence = 0;
9998         sys_config->answer_broadcast_ssid_probe = 0;
9999         sys_config->accept_all_data_frames = 0;
10000         sys_config->accept_non_directed_frames = 1;
10001         sys_config->exclude_unicast_unencrypted = 0;
10002         sys_config->disable_unicast_decryption = 1;
10003         sys_config->exclude_multicast_unencrypted = 0;
10004         sys_config->disable_multicast_decryption = 1;
10005         if (antenna < CFG_SYS_ANTENNA_BOTH || antenna > CFG_SYS_ANTENNA_B)
10006                 antenna = CFG_SYS_ANTENNA_BOTH;
10007         sys_config->antenna_diversity = antenna;
10008         sys_config->pass_crc_to_host = 0;       /* TODO: See if 1 gives us FCS */
10009         sys_config->dot11g_auto_detection = 0;
10010         sys_config->enable_cts_to_self = 0;
10011         sys_config->bt_coexist_collision_thr = 0;
10012         sys_config->pass_noise_stats_to_host = 1;       //1 -- fix for 256
10013         sys_config->silence_threshold = 0x1e;
10014 }
10015
10016 static int ipw_net_open(struct net_device *dev)
10017 {
10018         struct ipw_priv *priv = ieee80211_priv(dev);
10019         IPW_DEBUG_INFO("dev->open\n");
10020         /* we should be verifying the device is ready to be opened */
10021         mutex_lock(&priv->mutex);
10022         if (!(priv->status & STATUS_RF_KILL_MASK) &&
10023             (priv->status & STATUS_ASSOCIATED))
10024                 netif_start_queue(dev);
10025         mutex_unlock(&priv->mutex);
10026         return 0;
10027 }
10028
10029 static int ipw_net_stop(struct net_device *dev)
10030 {
10031         IPW_DEBUG_INFO("dev->close\n");
10032         netif_stop_queue(dev);
10033         return 0;
10034 }
10035
10036 /*
10037 todo:
10038
10039 modify to send one tfd per fragment instead of using chunking.  otherwise
10040 we need to heavily modify the ieee80211_skb_to_txb.
10041 */
10042
10043 static int ipw_tx_skb(struct ipw_priv *priv, struct ieee80211_txb *txb,
10044                              int pri)
10045 {
10046         struct ieee80211_hdr_3addrqos *hdr = (struct ieee80211_hdr_3addrqos *)
10047             txb->fragments[0]->data;
10048         int i = 0;
10049         struct tfd_frame *tfd;
10050 #ifdef CONFIG_IPW2200_QOS
10051         int tx_id = ipw_get_tx_queue_number(priv, pri);
10052         struct clx2_tx_queue *txq = &priv->txq[tx_id];
10053 #else
10054         struct clx2_tx_queue *txq = &priv->txq[0];
10055 #endif
10056         struct clx2_queue *q = &txq->q;
10057         u8 id, hdr_len, unicast;
10058         u16 remaining_bytes;
10059         int fc;
10060
10061         hdr_len = ieee80211_get_hdrlen(le16_to_cpu(hdr->frame_ctl));
10062         switch (priv->ieee->iw_mode) {
10063         case IW_MODE_ADHOC:
10064                 unicast = !is_multicast_ether_addr(hdr->addr1);
10065                 id = ipw_find_station(priv, hdr->addr1);
10066                 if (id == IPW_INVALID_STATION) {
10067                         id = ipw_add_station(priv, hdr->addr1);
10068                         if (id == IPW_INVALID_STATION) {
10069                                 IPW_WARNING("Attempt to send data to "
10070                                             "invalid cell: " MAC_FMT "\n",
10071                                             MAC_ARG(hdr->addr1));
10072                                 goto drop;
10073                         }
10074                 }
10075                 break;
10076
10077         case IW_MODE_INFRA:
10078         default:
10079                 unicast = !is_multicast_ether_addr(hdr->addr3);
10080                 id = 0;
10081                 break;
10082         }
10083
10084         tfd = &txq->bd[q->first_empty];
10085         txq->txb[q->first_empty] = txb;
10086         memset(tfd, 0, sizeof(*tfd));
10087         tfd->u.data.station_number = id;
10088
10089         tfd->control_flags.message_type = TX_FRAME_TYPE;
10090         tfd->control_flags.control_bits = TFD_NEED_IRQ_MASK;
10091
10092         tfd->u.data.cmd_id = DINO_CMD_TX;
10093         tfd->u.data.len = cpu_to_le16(txb->payload_size);
10094         remaining_bytes = txb->payload_size;
10095
10096         if (priv->assoc_request.ieee_mode == IPW_B_MODE)
10097                 tfd->u.data.tx_flags_ext |= DCT_FLAG_EXT_MODE_CCK;
10098         else
10099                 tfd->u.data.tx_flags_ext |= DCT_FLAG_EXT_MODE_OFDM;
10100
10101         if (priv->assoc_request.preamble_length == DCT_FLAG_SHORT_PREAMBLE)
10102                 tfd->u.data.tx_flags |= DCT_FLAG_SHORT_PREAMBLE;
10103
10104         fc = le16_to_cpu(hdr->frame_ctl);
10105         hdr->frame_ctl = cpu_to_le16(fc & ~IEEE80211_FCTL_MOREFRAGS);
10106
10107         memcpy(&tfd->u.data.tfd.tfd_24.mchdr, hdr, hdr_len);
10108
10109         if (likely(unicast))
10110                 tfd->u.data.tx_flags |= DCT_FLAG_ACK_REQD;
10111
10112         if (txb->encrypted && !priv->ieee->host_encrypt) {
10113                 switch (priv->ieee->sec.level) {
10114                 case SEC_LEVEL_3:
10115                         tfd->u.data.tfd.tfd_24.mchdr.frame_ctl |=
10116                             IEEE80211_FCTL_PROTECTED;
10117                         /* XXX: ACK flag must be set for CCMP even if it
10118                          * is a multicast/broadcast packet, because CCMP
10119                          * group communication encrypted by GTK is
10120                          * actually done by the AP. */
10121                         if (!unicast)
10122                                 tfd->u.data.tx_flags |= DCT_FLAG_ACK_REQD;
10123
10124                         tfd->u.data.tx_flags &= ~DCT_FLAG_NO_WEP;
10125                         tfd->u.data.tx_flags_ext |= DCT_FLAG_EXT_SECURITY_CCM;
10126                         tfd->u.data.key_index = 0;
10127                         tfd->u.data.key_index |= DCT_WEP_INDEX_USE_IMMEDIATE;
10128                         break;
10129                 case SEC_LEVEL_2:
10130                         tfd->u.data.tfd.tfd_24.mchdr.frame_ctl |=
10131                             IEEE80211_FCTL_PROTECTED;
10132                         tfd->u.data.tx_flags &= ~DCT_FLAG_NO_WEP;
10133                         tfd->u.data.tx_flags_ext |= DCT_FLAG_EXT_SECURITY_TKIP;
10134                         tfd->u.data.key_index = DCT_WEP_INDEX_USE_IMMEDIATE;
10135                         break;
10136                 case SEC_LEVEL_1:
10137                         tfd->u.data.tfd.tfd_24.mchdr.frame_ctl |=
10138                             IEEE80211_FCTL_PROTECTED;
10139                         tfd->u.data.key_index = priv->ieee->tx_keyidx;
10140                         if (priv->ieee->sec.key_sizes[priv->ieee->tx_keyidx] <=
10141                             40)
10142                                 tfd->u.data.key_index |= DCT_WEP_KEY_64Bit;
10143                         else
10144                                 tfd->u.data.key_index |= DCT_WEP_KEY_128Bit;
10145                         break;
10146                 case SEC_LEVEL_0:
10147                         break;
10148                 default:
10149                         printk(KERN_ERR "Unknow security level %d\n",
10150                                priv->ieee->sec.level);
10151                         break;
10152                 }
10153         } else
10154                 /* No hardware encryption */
10155                 tfd->u.data.tx_flags |= DCT_FLAG_NO_WEP;
10156
10157 #ifdef CONFIG_IPW2200_QOS
10158         if (fc & IEEE80211_STYPE_QOS_DATA)
10159                 ipw_qos_set_tx_queue_command(priv, pri, &(tfd->u.data));
10160 #endif                          /* CONFIG_IPW2200_QOS */
10161
10162         /* payload */
10163         tfd->u.data.num_chunks = cpu_to_le32(min((u8) (NUM_TFD_CHUNKS - 2),
10164                                                  txb->nr_frags));
10165         IPW_DEBUG_FRAG("%i fragments being sent as %i chunks.\n",
10166                        txb->nr_frags, le32_to_cpu(tfd->u.data.num_chunks));
10167         for (i = 0; i < le32_to_cpu(tfd->u.data.num_chunks); i++) {
10168                 IPW_DEBUG_FRAG("Adding fragment %i of %i (%d bytes).\n",
10169                                i, le32_to_cpu(tfd->u.data.num_chunks),
10170                                txb->fragments[i]->len - hdr_len);
10171                 IPW_DEBUG_TX("Dumping TX packet frag %i of %i (%d bytes):\n",
10172                              i, tfd->u.data.num_chunks,
10173                              txb->fragments[i]->len - hdr_len);
10174                 printk_buf(IPW_DL_TX, txb->fragments[i]->data + hdr_len,
10175                            txb->fragments[i]->len - hdr_len);
10176
10177                 tfd->u.data.chunk_ptr[i] =
10178                     cpu_to_le32(pci_map_single
10179                                 (priv->pci_dev,
10180                                  txb->fragments[i]->data + hdr_len,
10181                                  txb->fragments[i]->len - hdr_len,
10182                                  PCI_DMA_TODEVICE));
10183                 tfd->u.data.chunk_len[i] =
10184                     cpu_to_le16(txb->fragments[i]->len - hdr_len);
10185         }
10186
10187         if (i != txb->nr_frags) {
10188                 struct sk_buff *skb;
10189                 u16 remaining_bytes = 0;
10190                 int j;
10191
10192                 for (j = i; j < txb->nr_frags; j++)
10193                         remaining_bytes += txb->fragments[j]->len - hdr_len;
10194
10195                 printk(KERN_INFO "Trying to reallocate for %d bytes\n",
10196                        remaining_bytes);
10197                 skb = alloc_skb(remaining_bytes, GFP_ATOMIC);
10198                 if (skb != NULL) {
10199                         tfd->u.data.chunk_len[i] = cpu_to_le16(remaining_bytes);
10200                         for (j = i; j < txb->nr_frags; j++) {
10201                                 int size = txb->fragments[j]->len - hdr_len;
10202
10203                                 printk(KERN_INFO "Adding frag %d %d...\n",
10204                                        j, size);
10205                                 memcpy(skb_put(skb, size),
10206                                        txb->fragments[j]->data + hdr_len, size);
10207                         }
10208                         dev_kfree_skb_any(txb->fragments[i]);
10209                         txb->fragments[i] = skb;
10210                         tfd->u.data.chunk_ptr[i] =
10211                             cpu_to_le32(pci_map_single
10212                                         (priv->pci_dev, skb->data,
10213                                          tfd->u.data.chunk_len[i],
10214                                          PCI_DMA_TODEVICE));
10215
10216                         tfd->u.data.num_chunks =
10217                             cpu_to_le32(le32_to_cpu(tfd->u.data.num_chunks) +
10218                                         1);
10219                 }
10220         }
10221
10222         /* kick DMA */
10223         q->first_empty = ipw_queue_inc_wrap(q->first_empty, q->n_bd);
10224         ipw_write32(priv, q->reg_w, q->first_empty);
10225
10226         if (ipw_queue_space(q) < q->high_mark)
10227                 netif_stop_queue(priv->net_dev);
10228
10229         return NETDEV_TX_OK;
10230
10231       drop:
10232         IPW_DEBUG_DROP("Silently dropping Tx packet.\n");
10233         ieee80211_txb_free(txb);
10234         return NETDEV_TX_OK;
10235 }
10236
10237 static int ipw_net_is_queue_full(struct net_device *dev, int pri)
10238 {
10239         struct ipw_priv *priv = ieee80211_priv(dev);
10240 #ifdef CONFIG_IPW2200_QOS
10241         int tx_id = ipw_get_tx_queue_number(priv, pri);
10242         struct clx2_tx_queue *txq = &priv->txq[tx_id];
10243 #else
10244         struct clx2_tx_queue *txq = &priv->txq[0];
10245 #endif                          /* CONFIG_IPW2200_QOS */
10246
10247         if (ipw_queue_space(&txq->q) < txq->q.high_mark)
10248                 return 1;
10249
10250         return 0;
10251 }
10252
10253 #ifdef CONFIG_IPW2200_PROMISCUOUS
10254 static void ipw_handle_promiscuous_tx(struct ipw_priv *priv,
10255                                       struct ieee80211_txb *txb)
10256 {
10257         struct ieee80211_rx_stats dummystats;
10258         struct ieee80211_hdr *hdr;
10259         u8 n;
10260         u16 filter = priv->prom_priv->filter;
10261         int hdr_only = 0;
10262
10263         if (filter & IPW_PROM_NO_TX)
10264                 return;
10265
10266         memset(&dummystats, 0, sizeof(dummystats));
10267
10268         /* Filtering of fragment chains is done agains the first fragment */
10269         hdr = (void *)txb->fragments[0]->data;
10270         if (ieee80211_is_management(hdr->frame_ctl)) {
10271                 if (filter & IPW_PROM_NO_MGMT)
10272                         return;
10273                 if (filter & IPW_PROM_MGMT_HEADER_ONLY)
10274                         hdr_only = 1;
10275         } else if (ieee80211_is_control(hdr->frame_ctl)) {
10276                 if (filter & IPW_PROM_NO_CTL)
10277                         return;
10278                 if (filter & IPW_PROM_CTL_HEADER_ONLY)
10279                         hdr_only = 1;
10280         } else if (ieee80211_is_data(hdr->frame_ctl)) {
10281                 if (filter & IPW_PROM_NO_DATA)
10282                         return;
10283                 if (filter & IPW_PROM_DATA_HEADER_ONLY)
10284                         hdr_only = 1;
10285         }
10286
10287         for(n=0; n<txb->nr_frags; ++n) {
10288                 struct sk_buff *src = txb->fragments[n];
10289                 struct sk_buff *dst;
10290                 struct ieee80211_radiotap_header *rt_hdr;
10291                 int len;
10292
10293                 if (hdr_only) {
10294                         hdr = (void *)src->data;
10295                         len = ieee80211_get_hdrlen(hdr->frame_ctl);
10296                 } else
10297                         len = src->len;
10298
10299                 dst = alloc_skb(
10300                         len + IEEE80211_RADIOTAP_HDRLEN, GFP_ATOMIC);
10301                 if (!dst) continue;
10302
10303                 rt_hdr = (void *)skb_put(dst, sizeof(*rt_hdr));
10304
10305                 rt_hdr->it_version = PKTHDR_RADIOTAP_VERSION;
10306                 rt_hdr->it_pad = 0;
10307                 rt_hdr->it_present = 0; /* after all, it's just an idea */
10308                 rt_hdr->it_present |=  (1 << IEEE80211_RADIOTAP_CHANNEL);
10309
10310                 *(u16*)skb_put(dst, sizeof(u16)) = cpu_to_le16(
10311                         ieee80211chan2mhz(priv->channel));
10312                 if (priv->channel > 14)         /* 802.11a */
10313                         *(u16*)skb_put(dst, sizeof(u16)) =
10314                                 cpu_to_le16(IEEE80211_CHAN_OFDM |
10315                                              IEEE80211_CHAN_5GHZ);
10316                 else if (priv->ieee->mode == IEEE_B) /* 802.11b */
10317                         *(u16*)skb_put(dst, sizeof(u16)) =
10318                                 cpu_to_le16(IEEE80211_CHAN_CCK |
10319                                              IEEE80211_CHAN_2GHZ);
10320                 else            /* 802.11g */
10321                         *(u16*)skb_put(dst, sizeof(u16)) =
10322                                 cpu_to_le16(IEEE80211_CHAN_OFDM |
10323                                  IEEE80211_CHAN_2GHZ);
10324
10325                 rt_hdr->it_len = dst->len;
10326
10327                 memcpy(skb_put(dst, len), src->data, len);
10328
10329                 if (!ieee80211_rx(priv->prom_priv->ieee, dst, &dummystats))
10330                         dev_kfree_skb_any(dst);
10331         }
10332 }
10333 #endif
10334
10335 static int ipw_net_hard_start_xmit(struct ieee80211_txb *txb,
10336                                    struct net_device *dev, int pri)
10337 {
10338         struct ipw_priv *priv = ieee80211_priv(dev);
10339         unsigned long flags;
10340         int ret;
10341
10342         IPW_DEBUG_TX("dev->xmit(%d bytes)\n", txb->payload_size);
10343         spin_lock_irqsave(&priv->lock, flags);
10344
10345         if (!(priv->status & STATUS_ASSOCIATED)) {
10346                 IPW_DEBUG_INFO("Tx attempt while not associated.\n");
10347                 priv->ieee->stats.tx_carrier_errors++;
10348                 netif_stop_queue(dev);
10349                 goto fail_unlock;
10350         }
10351
10352 #ifdef CONFIG_IPW2200_PROMISCUOUS
10353         if (rtap_iface && netif_running(priv->prom_net_dev))
10354                 ipw_handle_promiscuous_tx(priv, txb);
10355 #endif
10356
10357         ret = ipw_tx_skb(priv, txb, pri);
10358         if (ret == NETDEV_TX_OK)
10359                 __ipw_led_activity_on(priv);
10360         spin_unlock_irqrestore(&priv->lock, flags);
10361
10362         return ret;
10363
10364       fail_unlock:
10365         spin_unlock_irqrestore(&priv->lock, flags);
10366         return 1;
10367 }
10368
10369 static struct net_device_stats *ipw_net_get_stats(struct net_device *dev)
10370 {
10371         struct ipw_priv *priv = ieee80211_priv(dev);
10372
10373         priv->ieee->stats.tx_packets = priv->tx_packets;
10374         priv->ieee->stats.rx_packets = priv->rx_packets;
10375         return &priv->ieee->stats;
10376 }
10377
10378 static void ipw_net_set_multicast_list(struct net_device *dev)
10379 {
10380
10381 }
10382
10383 static int ipw_net_set_mac_address(struct net_device *dev, void *p)
10384 {
10385         struct ipw_priv *priv = ieee80211_priv(dev);
10386         struct sockaddr *addr = p;
10387         if (!is_valid_ether_addr(addr->sa_data))
10388                 return -EADDRNOTAVAIL;
10389         mutex_lock(&priv->mutex);
10390         priv->config |= CFG_CUSTOM_MAC;
10391         memcpy(priv->mac_addr, addr->sa_data, ETH_ALEN);
10392         printk(KERN_INFO "%s: Setting MAC to " MAC_FMT "\n",
10393                priv->net_dev->name, MAC_ARG(priv->mac_addr));
10394         queue_work(priv->workqueue, &priv->adapter_restart);
10395         mutex_unlock(&priv->mutex);
10396         return 0;
10397 }
10398
10399 static void ipw_ethtool_get_drvinfo(struct net_device *dev,
10400                                     struct ethtool_drvinfo *info)
10401 {
10402         struct ipw_priv *p = ieee80211_priv(dev);
10403         char vers[64];
10404         char date[32];
10405         u32 len;
10406
10407         strcpy(info->driver, DRV_NAME);
10408         strcpy(info->version, DRV_VERSION);
10409
10410         len = sizeof(vers);
10411         ipw_get_ordinal(p, IPW_ORD_STAT_FW_VERSION, vers, &len);
10412         len = sizeof(date);
10413         ipw_get_ordinal(p, IPW_ORD_STAT_FW_DATE, date, &len);
10414
10415         snprintf(info->fw_version, sizeof(info->fw_version), "%s (%s)",
10416                  vers, date);
10417         strcpy(info->bus_info, pci_name(p->pci_dev));
10418         info->eedump_len = IPW_EEPROM_IMAGE_SIZE;
10419 }
10420
10421 static u32 ipw_ethtool_get_link(struct net_device *dev)
10422 {
10423         struct ipw_priv *priv = ieee80211_priv(dev);
10424         return (priv->status & STATUS_ASSOCIATED) != 0;
10425 }
10426
10427 static int ipw_ethtool_get_eeprom_len(struct net_device *dev)
10428 {
10429         return IPW_EEPROM_IMAGE_SIZE;
10430 }
10431
10432 static int ipw_ethtool_get_eeprom(struct net_device *dev,
10433                                   struct ethtool_eeprom *eeprom, u8 * bytes)
10434 {
10435         struct ipw_priv *p = ieee80211_priv(dev);
10436
10437         if (eeprom->offset + eeprom->len > IPW_EEPROM_IMAGE_SIZE)
10438                 return -EINVAL;
10439         mutex_lock(&p->mutex);
10440         memcpy(bytes, &p->eeprom[eeprom->offset], eeprom->len);
10441         mutex_unlock(&p->mutex);
10442         return 0;
10443 }
10444
10445 static int ipw_ethtool_set_eeprom(struct net_device *dev,
10446                                   struct ethtool_eeprom *eeprom, u8 * bytes)
10447 {
10448         struct ipw_priv *p = ieee80211_priv(dev);
10449         int i;
10450
10451         if (eeprom->offset + eeprom->len > IPW_EEPROM_IMAGE_SIZE)
10452                 return -EINVAL;
10453         mutex_lock(&p->mutex);
10454         memcpy(&p->eeprom[eeprom->offset], bytes, eeprom->len);
10455         for (i = 0; i < IPW_EEPROM_IMAGE_SIZE; i++)
10456                 ipw_write8(p, i + IPW_EEPROM_DATA, p->eeprom[i]);
10457         mutex_unlock(&p->mutex);
10458         return 0;
10459 }
10460
10461 static struct ethtool_ops ipw_ethtool_ops = {
10462         .get_link = ipw_ethtool_get_link,
10463         .get_drvinfo = ipw_ethtool_get_drvinfo,
10464         .get_eeprom_len = ipw_ethtool_get_eeprom_len,
10465         .get_eeprom = ipw_ethtool_get_eeprom,
10466         .set_eeprom = ipw_ethtool_set_eeprom,
10467 };
10468
10469 static irqreturn_t ipw_isr(int irq, void *data, struct pt_regs *regs)
10470 {
10471         struct ipw_priv *priv = data;
10472         u32 inta, inta_mask;
10473
10474         if (!priv)
10475                 return IRQ_NONE;
10476
10477         spin_lock(&priv->irq_lock);
10478
10479         if (!(priv->status & STATUS_INT_ENABLED)) {
10480                 /* Shared IRQ */
10481                 goto none;
10482         }
10483
10484         inta = ipw_read32(priv, IPW_INTA_RW);
10485         inta_mask = ipw_read32(priv, IPW_INTA_MASK_R);
10486
10487         if (inta == 0xFFFFFFFF) {
10488                 /* Hardware disappeared */
10489                 IPW_WARNING("IRQ INTA == 0xFFFFFFFF\n");
10490                 goto none;
10491         }
10492
10493         if (!(inta & (IPW_INTA_MASK_ALL & inta_mask))) {
10494                 /* Shared interrupt */
10495                 goto none;
10496         }
10497
10498         /* tell the device to stop sending interrupts */
10499         __ipw_disable_interrupts(priv);
10500
10501         /* ack current interrupts */
10502         inta &= (IPW_INTA_MASK_ALL & inta_mask);
10503         ipw_write32(priv, IPW_INTA_RW, inta);
10504
10505         /* Cache INTA value for our tasklet */
10506         priv->isr_inta = inta;
10507
10508         tasklet_schedule(&priv->irq_tasklet);
10509
10510         spin_unlock(&priv->irq_lock);
10511
10512         return IRQ_HANDLED;
10513       none:
10514         spin_unlock(&priv->irq_lock);
10515         return IRQ_NONE;
10516 }
10517
10518 static void ipw_rf_kill(void *adapter)
10519 {
10520         struct ipw_priv *priv = adapter;
10521         unsigned long flags;
10522
10523         spin_lock_irqsave(&priv->lock, flags);
10524
10525         if (rf_kill_active(priv)) {
10526                 IPW_DEBUG_RF_KILL("RF Kill active, rescheduling GPIO check\n");
10527                 if (priv->workqueue)
10528                         queue_delayed_work(priv->workqueue,
10529                                            &priv->rf_kill, 2 * HZ);
10530                 goto exit_unlock;
10531         }
10532
10533         /* RF Kill is now disabled, so bring the device back up */
10534
10535         if (!(priv->status & STATUS_RF_KILL_MASK)) {
10536                 IPW_DEBUG_RF_KILL("HW RF Kill no longer active, restarting "
10537                                   "device\n");
10538
10539                 /* we can not do an adapter restart while inside an irq lock */
10540                 queue_work(priv->workqueue, &priv->adapter_restart);
10541         } else
10542                 IPW_DEBUG_RF_KILL("HW RF Kill deactivated.  SW RF Kill still "
10543                                   "enabled\n");
10544
10545       exit_unlock:
10546         spin_unlock_irqrestore(&priv->lock, flags);
10547 }
10548
10549 static void ipw_bg_rf_kill(void *data)
10550 {
10551         struct ipw_priv *priv = data;
10552         mutex_lock(&priv->mutex);
10553         ipw_rf_kill(data);
10554         mutex_unlock(&priv->mutex);
10555 }
10556
10557 static void ipw_link_up(struct ipw_priv *priv)
10558 {
10559         priv->last_seq_num = -1;
10560         priv->last_frag_num = -1;
10561         priv->last_packet_time = 0;
10562
10563         netif_carrier_on(priv->net_dev);
10564         if (netif_queue_stopped(priv->net_dev)) {
10565                 IPW_DEBUG_NOTIF("waking queue\n");
10566                 netif_wake_queue(priv->net_dev);
10567         } else {
10568                 IPW_DEBUG_NOTIF("starting queue\n");
10569                 netif_start_queue(priv->net_dev);
10570         }
10571
10572         cancel_delayed_work(&priv->request_scan);
10573         ipw_reset_stats(priv);
10574         /* Ensure the rate is updated immediately */
10575         priv->last_rate = ipw_get_current_rate(priv);
10576         ipw_gather_stats(priv);
10577         ipw_led_link_up(priv);
10578         notify_wx_assoc_event(priv);
10579
10580         if (priv->config & CFG_BACKGROUND_SCAN)
10581                 queue_delayed_work(priv->workqueue, &priv->request_scan, HZ);
10582 }
10583
10584 static void ipw_bg_link_up(void *data)
10585 {
10586         struct ipw_priv *priv = data;
10587         mutex_lock(&priv->mutex);
10588         ipw_link_up(data);
10589         mutex_unlock(&priv->mutex);
10590 }
10591
10592 static void ipw_link_down(struct ipw_priv *priv)
10593 {
10594         ipw_led_link_down(priv);
10595         netif_carrier_off(priv->net_dev);
10596         netif_stop_queue(priv->net_dev);
10597         notify_wx_assoc_event(priv);
10598
10599         /* Cancel any queued work ... */
10600         cancel_delayed_work(&priv->request_scan);
10601         cancel_delayed_work(&priv->adhoc_check);
10602         cancel_delayed_work(&priv->gather_stats);
10603
10604         ipw_reset_stats(priv);
10605
10606         if (!(priv->status & STATUS_EXIT_PENDING)) {
10607                 /* Queue up another scan... */
10608                 queue_work(priv->workqueue, &priv->request_scan);
10609         }
10610 }
10611
10612 static void ipw_bg_link_down(void *data)
10613 {
10614         struct ipw_priv *priv = data;
10615         mutex_lock(&priv->mutex);
10616         ipw_link_down(data);
10617         mutex_unlock(&priv->mutex);
10618 }
10619
10620 static int ipw_setup_deferred_work(struct ipw_priv *priv)
10621 {
10622         int ret = 0;
10623
10624         priv->workqueue = create_workqueue(DRV_NAME);
10625         init_waitqueue_head(&priv->wait_command_queue);
10626         init_waitqueue_head(&priv->wait_state);
10627
10628         INIT_WORK(&priv->adhoc_check, ipw_bg_adhoc_check, priv);
10629         INIT_WORK(&priv->associate, ipw_bg_associate, priv);
10630         INIT_WORK(&priv->disassociate, ipw_bg_disassociate, priv);
10631         INIT_WORK(&priv->system_config, ipw_system_config, priv);
10632         INIT_WORK(&priv->rx_replenish, ipw_bg_rx_queue_replenish, priv);
10633         INIT_WORK(&priv->adapter_restart, ipw_bg_adapter_restart, priv);
10634         INIT_WORK(&priv->rf_kill, ipw_bg_rf_kill, priv);
10635         INIT_WORK(&priv->up, (void (*)(void *))ipw_bg_up, priv);
10636         INIT_WORK(&priv->down, (void (*)(void *))ipw_bg_down, priv);
10637         INIT_WORK(&priv->request_scan,
10638                   (void (*)(void *))ipw_request_scan, priv);
10639         INIT_WORK(&priv->gather_stats,
10640                   (void (*)(void *))ipw_bg_gather_stats, priv);
10641         INIT_WORK(&priv->abort_scan, (void (*)(void *))ipw_bg_abort_scan, priv);
10642         INIT_WORK(&priv->roam, ipw_bg_roam, priv);
10643         INIT_WORK(&priv->scan_check, ipw_bg_scan_check, priv);
10644         INIT_WORK(&priv->link_up, (void (*)(void *))ipw_bg_link_up, priv);
10645         INIT_WORK(&priv->link_down, (void (*)(void *))ipw_bg_link_down, priv);
10646         INIT_WORK(&priv->led_link_on, (void (*)(void *))ipw_bg_led_link_on,
10647                   priv);
10648         INIT_WORK(&priv->led_link_off, (void (*)(void *))ipw_bg_led_link_off,
10649                   priv);
10650         INIT_WORK(&priv->led_act_off, (void (*)(void *))ipw_bg_led_activity_off,
10651                   priv);
10652         INIT_WORK(&priv->merge_networks,
10653                   (void (*)(void *))ipw_merge_adhoc_network, priv);
10654
10655 #ifdef CONFIG_IPW2200_QOS
10656         INIT_WORK(&priv->qos_activate, (void (*)(void *))ipw_bg_qos_activate,
10657                   priv);
10658 #endif                          /* CONFIG_IPW2200_QOS */
10659
10660         tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long))
10661                      ipw_irq_tasklet, (unsigned long)priv);
10662
10663         return ret;
10664 }
10665
10666 static void shim__set_security(struct net_device *dev,
10667                                struct ieee80211_security *sec)
10668 {
10669         struct ipw_priv *priv = ieee80211_priv(dev);
10670         int i;
10671         for (i = 0; i < 4; i++) {
10672                 if (sec->flags & (1 << i)) {
10673                         priv->ieee->sec.encode_alg[i] = sec->encode_alg[i];
10674                         priv->ieee->sec.key_sizes[i] = sec->key_sizes[i];
10675                         if (sec->key_sizes[i] == 0)
10676                                 priv->ieee->sec.flags &= ~(1 << i);
10677                         else {
10678                                 memcpy(priv->ieee->sec.keys[i], sec->keys[i],
10679                                        sec->key_sizes[i]);
10680                                 priv->ieee->sec.flags |= (1 << i);
10681                         }
10682                         priv->status |= STATUS_SECURITY_UPDATED;
10683                 } else if (sec->level != SEC_LEVEL_1)
10684                         priv->ieee->sec.flags &= ~(1 << i);
10685         }
10686
10687         if (sec->flags & SEC_ACTIVE_KEY) {
10688                 if (sec->active_key <= 3) {
10689                         priv->ieee->sec.active_key = sec->active_key;
10690                         priv->ieee->sec.flags |= SEC_ACTIVE_KEY;
10691                 } else
10692                         priv->ieee->sec.flags &= ~SEC_ACTIVE_KEY;
10693                 priv->status |= STATUS_SECURITY_UPDATED;
10694         } else
10695                 priv->ieee->sec.flags &= ~SEC_ACTIVE_KEY;
10696
10697         if ((sec->flags & SEC_AUTH_MODE) &&
10698             (priv->ieee->sec.auth_mode != sec->auth_mode)) {
10699                 priv->ieee->sec.auth_mode = sec->auth_mode;
10700                 priv->ieee->sec.flags |= SEC_AUTH_MODE;
10701                 if (sec->auth_mode == WLAN_AUTH_SHARED_KEY)
10702                         priv->capability |= CAP_SHARED_KEY;
10703                 else
10704                         priv->capability &= ~CAP_SHARED_KEY;
10705                 priv->status |= STATUS_SECURITY_UPDATED;
10706         }
10707
10708         if (sec->flags & SEC_ENABLED && priv->ieee->sec.enabled != sec->enabled) {
10709                 priv->ieee->sec.flags |= SEC_ENABLED;
10710                 priv->ieee->sec.enabled = sec->enabled;
10711                 priv->status |= STATUS_SECURITY_UPDATED;
10712                 if (sec->enabled)
10713                         priv->capability |= CAP_PRIVACY_ON;
10714                 else
10715                         priv->capability &= ~CAP_PRIVACY_ON;
10716         }
10717
10718         if (sec->flags & SEC_ENCRYPT)
10719                 priv->ieee->sec.encrypt = sec->encrypt;
10720
10721         if (sec->flags & SEC_LEVEL && priv->ieee->sec.level != sec->level) {
10722                 priv->ieee->sec.level = sec->level;
10723                 priv->ieee->sec.flags |= SEC_LEVEL;
10724                 priv->status |= STATUS_SECURITY_UPDATED;
10725         }
10726
10727         if (!priv->ieee->host_encrypt && (sec->flags & SEC_ENCRYPT))
10728                 ipw_set_hwcrypto_keys(priv);
10729
10730         /* To match current functionality of ipw2100 (which works well w/
10731          * various supplicants, we don't force a disassociate if the
10732          * privacy capability changes ... */
10733 #if 0
10734         if ((priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)) &&
10735             (((priv->assoc_request.capability &
10736                WLAN_CAPABILITY_PRIVACY) && !sec->enabled) ||
10737              (!(priv->assoc_request.capability &
10738                 WLAN_CAPABILITY_PRIVACY) && sec->enabled))) {
10739                 IPW_DEBUG_ASSOC("Disassociating due to capability "
10740                                 "change.\n");
10741                 ipw_disassociate(priv);
10742         }
10743 #endif
10744 }
10745
10746 static int init_supported_rates(struct ipw_priv *priv,
10747                                 struct ipw_supported_rates *rates)
10748 {
10749         /* TODO: Mask out rates based on priv->rates_mask */
10750
10751         memset(rates, 0, sizeof(*rates));
10752         /* configure supported rates */
10753         switch (priv->ieee->freq_band) {
10754         case IEEE80211_52GHZ_BAND:
10755                 rates->ieee_mode = IPW_A_MODE;
10756                 rates->purpose = IPW_RATE_CAPABILITIES;
10757                 ipw_add_ofdm_scan_rates(rates, IEEE80211_CCK_MODULATION,
10758                                         IEEE80211_OFDM_DEFAULT_RATES_MASK);
10759                 break;
10760
10761         default:                /* Mixed or 2.4Ghz */
10762                 rates->ieee_mode = IPW_G_MODE;
10763                 rates->purpose = IPW_RATE_CAPABILITIES;
10764                 ipw_add_cck_scan_rates(rates, IEEE80211_CCK_MODULATION,
10765                                        IEEE80211_CCK_DEFAULT_RATES_MASK);
10766                 if (priv->ieee->modulation & IEEE80211_OFDM_MODULATION) {
10767                         ipw_add_ofdm_scan_rates(rates, IEEE80211_CCK_MODULATION,
10768                                                 IEEE80211_OFDM_DEFAULT_RATES_MASK);
10769                 }
10770                 break;
10771         }
10772
10773         return 0;
10774 }
10775
10776 static int ipw_config(struct ipw_priv *priv)
10777 {
10778         /* This is only called from ipw_up, which resets/reloads the firmware
10779            so, we don't need to first disable the card before we configure
10780            it */
10781         if (ipw_set_tx_power(priv))
10782                 goto error;
10783
10784         /* initialize adapter address */
10785         if (ipw_send_adapter_address(priv, priv->net_dev->dev_addr))
10786                 goto error;
10787
10788         /* set basic system config settings */
10789         init_sys_config(&priv->sys_config);
10790
10791         /* Support Bluetooth if we have BT h/w on board, and user wants to.
10792          * Does not support BT priority yet (don't abort or defer our Tx) */
10793         if (bt_coexist) {
10794                 unsigned char bt_caps = priv->eeprom[EEPROM_SKU_CAPABILITY];
10795
10796                 if (bt_caps & EEPROM_SKU_CAP_BT_CHANNEL_SIG)
10797                         priv->sys_config.bt_coexistence
10798                             |= CFG_BT_COEXISTENCE_SIGNAL_CHNL;
10799                 if (bt_caps & EEPROM_SKU_CAP_BT_OOB)
10800                         priv->sys_config.bt_coexistence
10801                             |= CFG_BT_COEXISTENCE_OOB;
10802         }
10803
10804 #ifdef CONFIG_IPW2200_PROMISCUOUS
10805         if (priv->prom_net_dev && netif_running(priv->prom_net_dev)) {
10806                 priv->sys_config.accept_all_data_frames = 1;
10807                 priv->sys_config.accept_non_directed_frames = 1;
10808                 priv->sys_config.accept_all_mgmt_bcpr = 1;
10809                 priv->sys_config.accept_all_mgmt_frames = 1;
10810         }
10811 #endif
10812
10813         if (priv->ieee->iw_mode == IW_MODE_ADHOC)
10814                 priv->sys_config.answer_broadcast_ssid_probe = 1;
10815         else
10816                 priv->sys_config.answer_broadcast_ssid_probe = 0;
10817
10818         if (ipw_send_system_config(priv))
10819                 goto error;
10820
10821         init_supported_rates(priv, &priv->rates);
10822         if (ipw_send_supported_rates(priv, &priv->rates))
10823                 goto error;
10824
10825         /* Set request-to-send threshold */
10826         if (priv->rts_threshold) {
10827                 if (ipw_send_rts_threshold(priv, priv->rts_threshold))
10828                         goto error;
10829         }
10830 #ifdef CONFIG_IPW2200_QOS
10831         IPW_DEBUG_QOS("QoS: call ipw_qos_activate\n");
10832         ipw_qos_activate(priv, NULL);
10833 #endif                          /* CONFIG_IPW2200_QOS */
10834
10835         if (ipw_set_random_seed(priv))
10836                 goto error;
10837
10838         /* final state transition to the RUN state */
10839         if (ipw_send_host_complete(priv))
10840                 goto error;
10841
10842         priv->status |= STATUS_INIT;
10843
10844         ipw_led_init(priv);
10845         ipw_led_radio_on(priv);
10846         priv->notif_missed_beacons = 0;
10847
10848         /* Set hardware WEP key if it is configured. */
10849         if ((priv->capability & CAP_PRIVACY_ON) &&
10850             (priv->ieee->sec.level == SEC_LEVEL_1) &&
10851             !(priv->ieee->host_encrypt || priv->ieee->host_decrypt))
10852                 ipw_set_hwcrypto_keys(priv);
10853
10854         return 0;
10855
10856       error:
10857         return -EIO;
10858 }
10859
10860 /*
10861  * NOTE:
10862  *
10863  * These tables have been tested in conjunction with the
10864  * Intel PRO/Wireless 2200BG and 2915ABG Network Connection Adapters.
10865  *
10866  * Altering this values, using it on other hardware, or in geographies
10867  * not intended for resale of the above mentioned Intel adapters has
10868  * not been tested.
10869  *
10870  * Remember to update the table in README.ipw2200 when changing this
10871  * table.
10872  *
10873  */
10874 static const struct ieee80211_geo ipw_geos[] = {
10875         {                       /* Restricted */
10876          "---",
10877          .bg_channels = 11,
10878          .bg = {{2412, 1}, {2417, 2}, {2422, 3},
10879                 {2427, 4}, {2432, 5}, {2437, 6},
10880                 {2442, 7}, {2447, 8}, {2452, 9},
10881                 {2457, 10}, {2462, 11}},
10882          },
10883
10884         {                       /* Custom US/Canada */
10885          "ZZF",
10886          .bg_channels = 11,
10887          .bg = {{2412, 1}, {2417, 2}, {2422, 3},
10888                 {2427, 4}, {2432, 5}, {2437, 6},
10889                 {2442, 7}, {2447, 8}, {2452, 9},
10890                 {2457, 10}, {2462, 11}},
10891          .a_channels = 8,
10892          .a = {{5180, 36},
10893                {5200, 40},
10894                {5220, 44},
10895                {5240, 48},
10896                {5260, 52, IEEE80211_CH_PASSIVE_ONLY},
10897                {5280, 56, IEEE80211_CH_PASSIVE_ONLY},
10898                {5300, 60, IEEE80211_CH_PASSIVE_ONLY},
10899                {5320, 64, IEEE80211_CH_PASSIVE_ONLY}},
10900          },
10901
10902         {                       /* Rest of World */
10903          "ZZD",
10904          .bg_channels = 13,
10905          .bg = {{2412, 1}, {2417, 2}, {2422, 3},
10906                 {2427, 4}, {2432, 5}, {2437, 6},
10907                 {2442, 7}, {2447, 8}, {2452, 9},
10908                 {2457, 10}, {2462, 11}, {2467, 12},
10909                 {2472, 13}},
10910          },
10911
10912         {                       /* Custom USA & Europe & High */
10913          "ZZA",
10914          .bg_channels = 11,
10915          .bg = {{2412, 1}, {2417, 2}, {2422, 3},
10916                 {2427, 4}, {2432, 5}, {2437, 6},
10917                 {2442, 7}, {2447, 8}, {2452, 9},
10918                 {2457, 10}, {2462, 11}},
10919          .a_channels = 13,
10920          .a = {{5180, 36},
10921                {5200, 40},
10922                {5220, 44},
10923                {5240, 48},
10924                {5260, 52, IEEE80211_CH_PASSIVE_ONLY},
10925                {5280, 56, IEEE80211_CH_PASSIVE_ONLY},
10926                {5300, 60, IEEE80211_CH_PASSIVE_ONLY},
10927                {5320, 64, IEEE80211_CH_PASSIVE_ONLY},
10928                {5745, 149},
10929                {5765, 153},
10930                {5785, 157},
10931                {5805, 161},
10932                {5825, 165}},
10933          },
10934
10935         {                       /* Custom NA & Europe */
10936          "ZZB",
10937          .bg_channels = 11,
10938          .bg = {{2412, 1}, {2417, 2}, {2422, 3},
10939                 {2427, 4}, {2432, 5}, {2437, 6},
10940                 {2442, 7}, {2447, 8}, {2452, 9},
10941                 {2457, 10}, {2462, 11}},
10942          .a_channels = 13,
10943          .a = {{5180, 36},
10944                {5200, 40},
10945                {5220, 44},
10946                {5240, 48},
10947                {5260, 52, IEEE80211_CH_PASSIVE_ONLY},
10948                {5280, 56, IEEE80211_CH_PASSIVE_ONLY},
10949                {5300, 60, IEEE80211_CH_PASSIVE_ONLY},
10950                {5320, 64, IEEE80211_CH_PASSIVE_ONLY},
10951                {5745, 149, IEEE80211_CH_PASSIVE_ONLY},
10952                {5765, 153, IEEE80211_CH_PASSIVE_ONLY},
10953                {5785, 157, IEEE80211_CH_PASSIVE_ONLY},
10954                {5805, 161, IEEE80211_CH_PASSIVE_ONLY},
10955                {5825, 165, IEEE80211_CH_PASSIVE_ONLY}},
10956          },
10957
10958         {                       /* Custom Japan */
10959          "ZZC",
10960          .bg_channels = 11,
10961          .bg = {{2412, 1}, {2417, 2}, {2422, 3},
10962                 {2427, 4}, {2432, 5}, {2437, 6},
10963                 {2442, 7}, {2447, 8}, {2452, 9},
10964                 {2457, 10}, {2462, 11}},
10965          .a_channels = 4,
10966          .a = {{5170, 34}, {5190, 38},
10967                {5210, 42}, {5230, 46}},
10968          },
10969
10970         {                       /* Custom */
10971          "ZZM",
10972          .bg_channels = 11,
10973          .bg = {{2412, 1}, {2417, 2}, {2422, 3},
10974                 {2427, 4}, {2432, 5}, {2437, 6},
10975                 {2442, 7}, {2447, 8}, {2452, 9},
10976                 {2457, 10}, {2462, 11}},
10977          },
10978
10979         {                       /* Europe */
10980          "ZZE",
10981          .bg_channels = 13,
10982          .bg = {{2412, 1}, {2417, 2}, {2422, 3},
10983                 {2427, 4}, {2432, 5}, {2437, 6},
10984                 {2442, 7}, {2447, 8}, {2452, 9},
10985                 {2457, 10}, {2462, 11}, {2467, 12},
10986                 {2472, 13}},
10987          .a_channels = 19,
10988          .a = {{5180, 36},
10989                {5200, 40},
10990                {5220, 44},
10991                {5240, 48},
10992                {5260, 52, IEEE80211_CH_PASSIVE_ONLY},
10993                {5280, 56, IEEE80211_CH_PASSIVE_ONLY},
10994                {5300, 60, IEEE80211_CH_PASSIVE_ONLY},
10995                {5320, 64, IEEE80211_CH_PASSIVE_ONLY},
10996                {5500, 100, IEEE80211_CH_PASSIVE_ONLY},
10997                {5520, 104, IEEE80211_CH_PASSIVE_ONLY},
10998                {5540, 108, IEEE80211_CH_PASSIVE_ONLY},
10999                {5560, 112, IEEE80211_CH_PASSIVE_ONLY},
11000                {5580, 116, IEEE80211_CH_PASSIVE_ONLY},
11001                {5600, 120, IEEE80211_CH_PASSIVE_ONLY},
11002                {5620, 124, IEEE80211_CH_PASSIVE_ONLY},
11003                {5640, 128, IEEE80211_CH_PASSIVE_ONLY},
11004                {5660, 132, IEEE80211_CH_PASSIVE_ONLY},
11005                {5680, 136, IEEE80211_CH_PASSIVE_ONLY},
11006                {5700, 140, IEEE80211_CH_PASSIVE_ONLY}},
11007          },
11008
11009         {                       /* Custom Japan */
11010          "ZZJ",
11011          .bg_channels = 14,
11012          .bg = {{2412, 1}, {2417, 2}, {2422, 3},
11013                 {2427, 4}, {2432, 5}, {2437, 6},
11014                 {2442, 7}, {2447, 8}, {2452, 9},
11015                 {2457, 10}, {2462, 11}, {2467, 12},
11016                 {2472, 13}, {2484, 14, IEEE80211_CH_B_ONLY}},
11017          .a_channels = 4,
11018          .a = {{5170, 34}, {5190, 38},
11019                {5210, 42}, {5230, 46}},
11020          },
11021
11022         {                       /* Rest of World */
11023          "ZZR",
11024          .bg_channels = 14,
11025          .bg = {{2412, 1}, {2417, 2}, {2422, 3},
11026                 {2427, 4}, {2432, 5}, {2437, 6},
11027                 {2442, 7}, {2447, 8}, {2452, 9},
11028                 {2457, 10}, {2462, 11}, {2467, 12},
11029                 {2472, 13}, {2484, 14, IEEE80211_CH_B_ONLY |
11030                              IEEE80211_CH_PASSIVE_ONLY}},
11031          },
11032
11033         {                       /* High Band */
11034          "ZZH",
11035          .bg_channels = 13,
11036          .bg = {{2412, 1}, {2417, 2}, {2422, 3},
11037                 {2427, 4}, {2432, 5}, {2437, 6},
11038                 {2442, 7}, {2447, 8}, {2452, 9},
11039                 {2457, 10}, {2462, 11},
11040                 {2467, 12, IEEE80211_CH_PASSIVE_ONLY},
11041                 {2472, 13, IEEE80211_CH_PASSIVE_ONLY}},
11042          .a_channels = 4,
11043          .a = {{5745, 149}, {5765, 153},
11044                {5785, 157}, {5805, 161}},
11045          },
11046
11047         {                       /* Custom Europe */
11048          "ZZG",
11049          .bg_channels = 13,
11050          .bg = {{2412, 1}, {2417, 2}, {2422, 3},
11051                 {2427, 4}, {2432, 5}, {2437, 6},
11052                 {2442, 7}, {2447, 8}, {2452, 9},
11053                 {2457, 10}, {2462, 11},
11054                 {2467, 12}, {2472, 13}},
11055          .a_channels = 4,
11056          .a = {{5180, 36}, {5200, 40},
11057                {5220, 44}, {5240, 48}},
11058          },
11059
11060         {                       /* Europe */
11061          "ZZK",
11062          .bg_channels = 13,
11063          .bg = {{2412, 1}, {2417, 2}, {2422, 3},
11064                 {2427, 4}, {2432, 5}, {2437, 6},
11065                 {2442, 7}, {2447, 8}, {2452, 9},
11066                 {2457, 10}, {2462, 11},
11067                 {2467, 12, IEEE80211_CH_PASSIVE_ONLY},
11068                 {2472, 13, IEEE80211_CH_PASSIVE_ONLY}},
11069          .a_channels = 24,
11070          .a = {{5180, 36, IEEE80211_CH_PASSIVE_ONLY},
11071                {5200, 40, IEEE80211_CH_PASSIVE_ONLY},
11072                {5220, 44, IEEE80211_CH_PASSIVE_ONLY},
11073                {5240, 48, IEEE80211_CH_PASSIVE_ONLY},
11074                {5260, 52, IEEE80211_CH_PASSIVE_ONLY},
11075                {5280, 56, IEEE80211_CH_PASSIVE_ONLY},
11076                {5300, 60, IEEE80211_CH_PASSIVE_ONLY},
11077                {5320, 64, IEEE80211_CH_PASSIVE_ONLY},
11078                {5500, 100, IEEE80211_CH_PASSIVE_ONLY},
11079                {5520, 104, IEEE80211_CH_PASSIVE_ONLY},
11080                {5540, 108, IEEE80211_CH_PASSIVE_ONLY},
11081                {5560, 112, IEEE80211_CH_PASSIVE_ONLY},
11082                {5580, 116, IEEE80211_CH_PASSIVE_ONLY},
11083                {5600, 120, IEEE80211_CH_PASSIVE_ONLY},
11084                {5620, 124, IEEE80211_CH_PASSIVE_ONLY},
11085                {5640, 128, IEEE80211_CH_PASSIVE_ONLY},
11086                {5660, 132, IEEE80211_CH_PASSIVE_ONLY},
11087                {5680, 136, IEEE80211_CH_PASSIVE_ONLY},
11088                {5700, 140, IEEE80211_CH_PASSIVE_ONLY},
11089                {5745, 149, IEEE80211_CH_PASSIVE_ONLY},
11090                {5765, 153, IEEE80211_CH_PASSIVE_ONLY},
11091                {5785, 157, IEEE80211_CH_PASSIVE_ONLY},
11092                {5805, 161, IEEE80211_CH_PASSIVE_ONLY},
11093                {5825, 165, IEEE80211_CH_PASSIVE_ONLY}},
11094          },
11095
11096         {                       /* Europe */
11097          "ZZL",
11098          .bg_channels = 11,
11099          .bg = {{2412, 1}, {2417, 2}, {2422, 3},
11100                 {2427, 4}, {2432, 5}, {2437, 6},
11101                 {2442, 7}, {2447, 8}, {2452, 9},
11102                 {2457, 10}, {2462, 11}},
11103          .a_channels = 13,
11104          .a = {{5180, 36, IEEE80211_CH_PASSIVE_ONLY},
11105                {5200, 40, IEEE80211_CH_PASSIVE_ONLY},
11106                {5220, 44, IEEE80211_CH_PASSIVE_ONLY},
11107                {5240, 48, IEEE80211_CH_PASSIVE_ONLY},
11108                {5260, 52, IEEE80211_CH_PASSIVE_ONLY},
11109                {5280, 56, IEEE80211_CH_PASSIVE_ONLY},
11110                {5300, 60, IEEE80211_CH_PASSIVE_ONLY},
11111                {5320, 64, IEEE80211_CH_PASSIVE_ONLY},
11112                {5745, 149, IEEE80211_CH_PASSIVE_ONLY},
11113                {5765, 153, IEEE80211_CH_PASSIVE_ONLY},
11114                {5785, 157, IEEE80211_CH_PASSIVE_ONLY},
11115                {5805, 161, IEEE80211_CH_PASSIVE_ONLY},
11116                {5825, 165, IEEE80211_CH_PASSIVE_ONLY}},
11117          }
11118 };
11119
11120 #define MAX_HW_RESTARTS 5
11121 static int ipw_up(struct ipw_priv *priv)
11122 {
11123         int rc, i, j;
11124
11125         if (priv->status & STATUS_EXIT_PENDING)
11126                 return -EIO;
11127
11128         if (cmdlog && !priv->cmdlog) {
11129                 priv->cmdlog = kmalloc(sizeof(*priv->cmdlog) * cmdlog,
11130                                        GFP_KERNEL);
11131                 if (priv->cmdlog == NULL) {
11132                         IPW_ERROR("Error allocating %d command log entries.\n",
11133                                   cmdlog);
11134                         return -ENOMEM;
11135                 } else {
11136                         memset(priv->cmdlog, 0, sizeof(*priv->cmdlog) * cmdlog);
11137                         priv->cmdlog_len = cmdlog;
11138                 }
11139         }
11140
11141         for (i = 0; i < MAX_HW_RESTARTS; i++) {
11142                 /* Load the microcode, firmware, and eeprom.
11143                  * Also start the clocks. */
11144                 rc = ipw_load(priv);
11145                 if (rc) {
11146                         IPW_ERROR("Unable to load firmware: %d\n", rc);
11147                         return rc;
11148                 }
11149
11150                 ipw_init_ordinals(priv);
11151                 if (!(priv->config & CFG_CUSTOM_MAC))
11152                         eeprom_parse_mac(priv, priv->mac_addr);
11153                 memcpy(priv->net_dev->dev_addr, priv->mac_addr, ETH_ALEN);
11154
11155                 for (j = 0; j < ARRAY_SIZE(ipw_geos); j++) {
11156                         if (!memcmp(&priv->eeprom[EEPROM_COUNTRY_CODE],
11157                                     ipw_geos[j].name, 3))
11158                                 break;
11159                 }
11160                 if (j == ARRAY_SIZE(ipw_geos)) {
11161                         IPW_WARNING("SKU [%c%c%c] not recognized.\n",
11162                                     priv->eeprom[EEPROM_COUNTRY_CODE + 0],
11163                                     priv->eeprom[EEPROM_COUNTRY_CODE + 1],
11164                                     priv->eeprom[EEPROM_COUNTRY_CODE + 2]);
11165                         j = 0;
11166                 }
11167                 if (ieee80211_set_geo(priv->ieee, &ipw_geos[j])) {
11168                         IPW_WARNING("Could not set geography.");
11169                         return 0;
11170                 }
11171
11172                 if (priv->status & STATUS_RF_KILL_SW) {
11173                         IPW_WARNING("Radio disabled by module parameter.\n");
11174                         return 0;
11175                 } else if (rf_kill_active(priv)) {
11176                         IPW_WARNING("Radio Frequency Kill Switch is On:\n"
11177                                     "Kill switch must be turned off for "
11178                                     "wireless networking to work.\n");
11179                         queue_delayed_work(priv->workqueue, &priv->rf_kill,
11180                                            2 * HZ);
11181                         return 0;
11182                 }
11183
11184                 rc = ipw_config(priv);
11185                 if (!rc) {
11186                         IPW_DEBUG_INFO("Configured device on count %i\n", i);
11187
11188                         /* If configure to try and auto-associate, kick
11189                          * off a scan. */
11190                         queue_work(priv->workqueue, &priv->request_scan);
11191
11192                         return 0;
11193                 }
11194
11195                 IPW_DEBUG_INFO("Device configuration failed: 0x%08X\n", rc);
11196                 IPW_DEBUG_INFO("Failed to config device on retry %d of %d\n",
11197                                i, MAX_HW_RESTARTS);
11198
11199                 /* We had an error bringing up the hardware, so take it
11200                  * all the way back down so we can try again */
11201                 ipw_down(priv);
11202         }
11203
11204         /* tried to restart and config the device for as long as our
11205          * patience could withstand */
11206         IPW_ERROR("Unable to initialize device after %d attempts.\n", i);
11207
11208         return -EIO;
11209 }
11210
11211 static void ipw_bg_up(void *data)
11212 {
11213         struct ipw_priv *priv = data;
11214         mutex_lock(&priv->mutex);
11215         ipw_up(data);
11216         mutex_unlock(&priv->mutex);
11217 }
11218
11219 static void ipw_deinit(struct ipw_priv *priv)
11220 {
11221         int i;
11222
11223         if (priv->status & STATUS_SCANNING) {
11224                 IPW_DEBUG_INFO("Aborting scan during shutdown.\n");
11225                 ipw_abort_scan(priv);
11226         }
11227
11228         if (priv->status & STATUS_ASSOCIATED) {
11229                 IPW_DEBUG_INFO("Disassociating during shutdown.\n");
11230                 ipw_disassociate(priv);
11231         }
11232
11233         ipw_led_shutdown(priv);
11234
11235         /* Wait up to 1s for status to change to not scanning and not
11236          * associated (disassociation can take a while for a ful 802.11
11237          * exchange */
11238         for (i = 1000; i && (priv->status &
11239                              (STATUS_DISASSOCIATING |
11240                               STATUS_ASSOCIATED | STATUS_SCANNING)); i--)
11241                 udelay(10);
11242
11243         if (priv->status & (STATUS_DISASSOCIATING |
11244                             STATUS_ASSOCIATED | STATUS_SCANNING))
11245                 IPW_DEBUG_INFO("Still associated or scanning...\n");
11246         else
11247                 IPW_DEBUG_INFO("Took %dms to de-init\n", 1000 - i);
11248
11249         /* Attempt to disable the card */
11250         ipw_send_card_disable(priv, 0);
11251
11252         priv->status &= ~STATUS_INIT;
11253 }
11254
11255 static void ipw_down(struct ipw_priv *priv)
11256 {
11257         int exit_pending = priv->status & STATUS_EXIT_PENDING;
11258
11259         priv->status |= STATUS_EXIT_PENDING;
11260
11261         if (ipw_is_init(priv))
11262                 ipw_deinit(priv);
11263
11264         /* Wipe out the EXIT_PENDING status bit if we are not actually
11265          * exiting the module */
11266         if (!exit_pending)
11267                 priv->status &= ~STATUS_EXIT_PENDING;
11268
11269         /* tell the device to stop sending interrupts */
11270         ipw_disable_interrupts(priv);
11271
11272         /* Clear all bits but the RF Kill */
11273         priv->status &= STATUS_RF_KILL_MASK | STATUS_EXIT_PENDING;
11274         netif_carrier_off(priv->net_dev);
11275         netif_stop_queue(priv->net_dev);
11276
11277         ipw_stop_nic(priv);
11278
11279         ipw_led_radio_off(priv);
11280 }
11281
11282 static void ipw_bg_down(void *data)
11283 {
11284         struct ipw_priv *priv = data;
11285         mutex_lock(&priv->mutex);
11286         ipw_down(data);
11287         mutex_unlock(&priv->mutex);
11288 }
11289
11290 /* Called by register_netdev() */
11291 static int ipw_net_init(struct net_device *dev)
11292 {
11293         struct ipw_priv *priv = ieee80211_priv(dev);
11294         mutex_lock(&priv->mutex);
11295
11296         if (ipw_up(priv)) {
11297                 mutex_unlock(&priv->mutex);
11298                 return -EIO;
11299         }
11300
11301         mutex_unlock(&priv->mutex);
11302         return 0;
11303 }
11304
11305 /* PCI driver stuff */
11306 static struct pci_device_id card_ids[] = {
11307         {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2701, 0, 0, 0},
11308         {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2702, 0, 0, 0},
11309         {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2711, 0, 0, 0},
11310         {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2712, 0, 0, 0},
11311         {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2721, 0, 0, 0},
11312         {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2722, 0, 0, 0},
11313         {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2731, 0, 0, 0},
11314         {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2732, 0, 0, 0},
11315         {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2741, 0, 0, 0},
11316         {PCI_VENDOR_ID_INTEL, 0x1043, 0x103c, 0x2741, 0, 0, 0},
11317         {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2742, 0, 0, 0},
11318         {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2751, 0, 0, 0},
11319         {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2752, 0, 0, 0},
11320         {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2753, 0, 0, 0},
11321         {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2754, 0, 0, 0},
11322         {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2761, 0, 0, 0},
11323         {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2762, 0, 0, 0},
11324         {PCI_VENDOR_ID_INTEL, 0x104f, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
11325         {PCI_VENDOR_ID_INTEL, 0x4220, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, /* BG */
11326         {PCI_VENDOR_ID_INTEL, 0x4221, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, /* BG */
11327         {PCI_VENDOR_ID_INTEL, 0x4223, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, /* ABG */
11328         {PCI_VENDOR_ID_INTEL, 0x4224, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, /* ABG */
11329
11330         /* required last entry */
11331         {0,}
11332 };
11333
11334 MODULE_DEVICE_TABLE(pci, card_ids);
11335
11336 static struct attribute *ipw_sysfs_entries[] = {
11337         &dev_attr_rf_kill.attr,
11338         &dev_attr_direct_dword.attr,
11339         &dev_attr_indirect_byte.attr,
11340         &dev_attr_indirect_dword.attr,
11341         &dev_attr_mem_gpio_reg.attr,
11342         &dev_attr_command_event_reg.attr,
11343         &dev_attr_nic_type.attr,
11344         &dev_attr_status.attr,
11345         &dev_attr_cfg.attr,
11346         &dev_attr_error.attr,
11347         &dev_attr_event_log.attr,
11348         &dev_attr_cmd_log.attr,
11349         &dev_attr_eeprom_delay.attr,
11350         &dev_attr_ucode_version.attr,
11351         &dev_attr_rtc.attr,
11352         &dev_attr_scan_age.attr,
11353         &dev_attr_led.attr,
11354         &dev_attr_speed_scan.attr,
11355         &dev_attr_net_stats.attr,
11356 #ifdef CONFIG_IPW2200_PROMISCUOUS
11357         &dev_attr_rtap_iface.attr,
11358         &dev_attr_rtap_filter.attr,
11359 #endif
11360         NULL
11361 };
11362
11363 static struct attribute_group ipw_attribute_group = {
11364         .name = NULL,           /* put in device directory */
11365         .attrs = ipw_sysfs_entries,
11366 };
11367
11368 #ifdef CONFIG_IPW2200_PROMISCUOUS
11369 static int ipw_prom_open(struct net_device *dev)
11370 {
11371         struct ipw_prom_priv *prom_priv = ieee80211_priv(dev);
11372         struct ipw_priv *priv = prom_priv->priv;
11373
11374         IPW_DEBUG_INFO("prom dev->open\n");
11375         netif_carrier_off(dev);
11376         netif_stop_queue(dev);
11377
11378         if (priv->ieee->iw_mode != IW_MODE_MONITOR) {
11379                 priv->sys_config.accept_all_data_frames = 1;
11380                 priv->sys_config.accept_non_directed_frames = 1;
11381                 priv->sys_config.accept_all_mgmt_bcpr = 1;
11382                 priv->sys_config.accept_all_mgmt_frames = 1;
11383
11384                 ipw_send_system_config(priv);
11385         }
11386
11387         return 0;
11388 }
11389
11390 static int ipw_prom_stop(struct net_device *dev)
11391 {
11392         struct ipw_prom_priv *prom_priv = ieee80211_priv(dev);
11393         struct ipw_priv *priv = prom_priv->priv;
11394
11395         IPW_DEBUG_INFO("prom dev->stop\n");
11396
11397         if (priv->ieee->iw_mode != IW_MODE_MONITOR) {
11398                 priv->sys_config.accept_all_data_frames = 0;
11399                 priv->sys_config.accept_non_directed_frames = 0;
11400                 priv->sys_config.accept_all_mgmt_bcpr = 0;
11401                 priv->sys_config.accept_all_mgmt_frames = 0;
11402
11403                 ipw_send_system_config(priv);
11404         }
11405
11406         return 0;
11407 }
11408
11409 static int ipw_prom_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
11410 {
11411         IPW_DEBUG_INFO("prom dev->xmit\n");
11412         netif_stop_queue(dev);
11413         return -EOPNOTSUPP;
11414 }
11415
11416 static struct net_device_stats *ipw_prom_get_stats(struct net_device *dev)
11417 {
11418         struct ipw_prom_priv *prom_priv = ieee80211_priv(dev);
11419         return &prom_priv->ieee->stats;
11420 }
11421
11422 static int ipw_prom_alloc(struct ipw_priv *priv)
11423 {
11424         int rc = 0;
11425
11426         if (priv->prom_net_dev)
11427                 return -EPERM;
11428
11429         priv->prom_net_dev = alloc_ieee80211(sizeof(struct ipw_prom_priv));
11430         if (priv->prom_net_dev == NULL)
11431                 return -ENOMEM;
11432
11433         priv->prom_priv = ieee80211_priv(priv->prom_net_dev);
11434         priv->prom_priv->ieee = netdev_priv(priv->prom_net_dev);
11435         priv->prom_priv->priv = priv;
11436
11437         strcpy(priv->prom_net_dev->name, "rtap%d");
11438
11439         priv->prom_net_dev->type = ARPHRD_IEEE80211_RADIOTAP;
11440         priv->prom_net_dev->open = ipw_prom_open;
11441         priv->prom_net_dev->stop = ipw_prom_stop;
11442         priv->prom_net_dev->get_stats = ipw_prom_get_stats;
11443         priv->prom_net_dev->hard_start_xmit = ipw_prom_hard_start_xmit;
11444
11445         priv->prom_priv->ieee->iw_mode = IW_MODE_MONITOR;
11446
11447         rc = register_netdev(priv->prom_net_dev);
11448         if (rc) {
11449                 free_ieee80211(priv->prom_net_dev);
11450                 priv->prom_net_dev = NULL;
11451                 return rc;
11452         }
11453
11454         return 0;
11455 }
11456
11457 static void ipw_prom_free(struct ipw_priv *priv)
11458 {
11459         if (!priv->prom_net_dev)
11460                 return;
11461
11462         unregister_netdev(priv->prom_net_dev);
11463         free_ieee80211(priv->prom_net_dev);
11464
11465         priv->prom_net_dev = NULL;
11466 }
11467
11468 #endif
11469
11470
11471 static int ipw_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
11472 {
11473         int err = 0;
11474         struct net_device *net_dev;
11475         void __iomem *base;
11476         u32 length, val;
11477         struct ipw_priv *priv;
11478         int i;
11479
11480         net_dev = alloc_ieee80211(sizeof(struct ipw_priv));
11481         if (net_dev == NULL) {
11482                 err = -ENOMEM;
11483                 goto out;
11484         }
11485
11486         priv = ieee80211_priv(net_dev);
11487         priv->ieee = netdev_priv(net_dev);
11488
11489         priv->net_dev = net_dev;
11490         priv->pci_dev = pdev;
11491 #ifdef CONFIG_IPW2200_DEBUG
11492         ipw_debug_level = debug;
11493 #endif
11494         spin_lock_init(&priv->irq_lock);
11495         spin_lock_init(&priv->lock);
11496         for (i = 0; i < IPW_IBSS_MAC_HASH_SIZE; i++)
11497                 INIT_LIST_HEAD(&priv->ibss_mac_hash[i]);
11498
11499         mutex_init(&priv->mutex);
11500         if (pci_enable_device(pdev)) {
11501                 err = -ENODEV;
11502                 goto out_free_ieee80211;
11503         }
11504
11505         pci_set_master(pdev);
11506
11507         err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
11508         if (!err)
11509                 err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
11510         if (err) {
11511                 printk(KERN_WARNING DRV_NAME ": No suitable DMA available.\n");
11512                 goto out_pci_disable_device;
11513         }
11514
11515         pci_set_drvdata(pdev, priv);
11516
11517         err = pci_request_regions(pdev, DRV_NAME);
11518         if (err)
11519                 goto out_pci_disable_device;
11520
11521         /* We disable the RETRY_TIMEOUT register (0x41) to keep
11522          * PCI Tx retries from interfering with C3 CPU state */
11523         pci_read_config_dword(pdev, 0x40, &val);
11524         if ((val & 0x0000ff00) != 0)
11525                 pci_write_config_dword(pdev, 0x40, val & 0xffff00ff);
11526
11527         length = pci_resource_len(pdev, 0);
11528         priv->hw_len = length;
11529
11530         base = ioremap_nocache(pci_resource_start(pdev, 0), length);
11531         if (!base) {
11532                 err = -ENODEV;
11533                 goto out_pci_release_regions;
11534         }
11535
11536         priv->hw_base = base;
11537         IPW_DEBUG_INFO("pci_resource_len = 0x%08x\n", length);
11538         IPW_DEBUG_INFO("pci_resource_base = %p\n", base);
11539
11540         err = ipw_setup_deferred_work(priv);
11541         if (err) {
11542                 IPW_ERROR("Unable to setup deferred work\n");
11543                 goto out_iounmap;
11544         }
11545
11546         ipw_sw_reset(priv, 1);
11547
11548         err = request_irq(pdev->irq, ipw_isr, IRQF_SHARED, DRV_NAME, priv);
11549         if (err) {
11550                 IPW_ERROR("Error allocating IRQ %d\n", pdev->irq);
11551                 goto out_destroy_workqueue;
11552         }
11553
11554         SET_MODULE_OWNER(net_dev);
11555         SET_NETDEV_DEV(net_dev, &pdev->dev);
11556
11557         mutex_lock(&priv->mutex);
11558
11559         priv->ieee->hard_start_xmit = ipw_net_hard_start_xmit;
11560         priv->ieee->set_security = shim__set_security;
11561         priv->ieee->is_queue_full = ipw_net_is_queue_full;
11562
11563 #ifdef CONFIG_IPW2200_QOS
11564         priv->ieee->is_qos_active = ipw_is_qos_active;
11565         priv->ieee->handle_probe_response = ipw_handle_beacon;
11566         priv->ieee->handle_beacon = ipw_handle_probe_response;
11567         priv->ieee->handle_assoc_response = ipw_handle_assoc_response;
11568 #endif                          /* CONFIG_IPW2200_QOS */
11569
11570         priv->ieee->perfect_rssi = -20;
11571         priv->ieee->worst_rssi = -85;
11572
11573         net_dev->open = ipw_net_open;
11574         net_dev->stop = ipw_net_stop;
11575         net_dev->init = ipw_net_init;
11576         net_dev->get_stats = ipw_net_get_stats;
11577         net_dev->set_multicast_list = ipw_net_set_multicast_list;
11578         net_dev->set_mac_address = ipw_net_set_mac_address;
11579         priv->wireless_data.spy_data = &priv->ieee->spy_data;
11580         net_dev->wireless_data = &priv->wireless_data;
11581         net_dev->wireless_handlers = &ipw_wx_handler_def;
11582         net_dev->ethtool_ops = &ipw_ethtool_ops;
11583         net_dev->irq = pdev->irq;
11584         net_dev->base_addr = (unsigned long)priv->hw_base;
11585         net_dev->mem_start = pci_resource_start(pdev, 0);
11586         net_dev->mem_end = net_dev->mem_start + pci_resource_len(pdev, 0) - 1;
11587
11588         err = sysfs_create_group(&pdev->dev.kobj, &ipw_attribute_group);
11589         if (err) {
11590                 IPW_ERROR("failed to create sysfs device attributes\n");
11591                 mutex_unlock(&priv->mutex);
11592                 goto out_release_irq;
11593         }
11594
11595         mutex_unlock(&priv->mutex);
11596         err = register_netdev(net_dev);
11597         if (err) {
11598                 IPW_ERROR("failed to register network device\n");
11599                 goto out_remove_sysfs;
11600         }
11601
11602 #ifdef CONFIG_IPW2200_PROMISCUOUS
11603         if (rtap_iface) {
11604                 err = ipw_prom_alloc(priv);
11605                 if (err) {
11606                         IPW_ERROR("Failed to register promiscuous network "
11607                                   "device (error %d).\n", err);
11608                         unregister_netdev(priv->net_dev);
11609                         goto out_remove_sysfs;
11610                 }
11611         }
11612 #endif
11613
11614         printk(KERN_INFO DRV_NAME ": Detected geography %s (%d 802.11bg "
11615                "channels, %d 802.11a channels)\n",
11616                priv->ieee->geo.name, priv->ieee->geo.bg_channels,
11617                priv->ieee->geo.a_channels);
11618
11619         return 0;
11620
11621       out_remove_sysfs:
11622         sysfs_remove_group(&pdev->dev.kobj, &ipw_attribute_group);
11623       out_release_irq:
11624         free_irq(pdev->irq, priv);
11625       out_destroy_workqueue:
11626         destroy_workqueue(priv->workqueue);
11627         priv->workqueue = NULL;
11628       out_iounmap:
11629         iounmap(priv->hw_base);
11630       out_pci_release_regions:
11631         pci_release_regions(pdev);
11632       out_pci_disable_device:
11633         pci_disable_device(pdev);
11634         pci_set_drvdata(pdev, NULL);
11635       out_free_ieee80211:
11636         free_ieee80211(priv->net_dev);
11637       out:
11638         return err;
11639 }
11640
11641 static void ipw_pci_remove(struct pci_dev *pdev)
11642 {
11643         struct ipw_priv *priv = pci_get_drvdata(pdev);
11644         struct list_head *p, *q;
11645         int i;
11646
11647         if (!priv)
11648                 return;
11649
11650         mutex_lock(&priv->mutex);
11651
11652         priv->status |= STATUS_EXIT_PENDING;
11653         ipw_down(priv);
11654         sysfs_remove_group(&pdev->dev.kobj, &ipw_attribute_group);
11655
11656         mutex_unlock(&priv->mutex);
11657
11658         unregister_netdev(priv->net_dev);
11659
11660         if (priv->rxq) {
11661                 ipw_rx_queue_free(priv, priv->rxq);
11662                 priv->rxq = NULL;
11663         }
11664         ipw_tx_queue_free(priv);
11665
11666         if (priv->cmdlog) {
11667                 kfree(priv->cmdlog);
11668                 priv->cmdlog = NULL;
11669         }
11670         /* ipw_down will ensure that there is no more pending work
11671          * in the workqueue's, so we can safely remove them now. */
11672         cancel_delayed_work(&priv->adhoc_check);
11673         cancel_delayed_work(&priv->gather_stats);
11674         cancel_delayed_work(&priv->request_scan);
11675         cancel_delayed_work(&priv->rf_kill);
11676         cancel_delayed_work(&priv->scan_check);
11677         destroy_workqueue(priv->workqueue);
11678         priv->workqueue = NULL;
11679
11680         /* Free MAC hash list for ADHOC */
11681         for (i = 0; i < IPW_IBSS_MAC_HASH_SIZE; i++) {
11682                 list_for_each_safe(p, q, &priv->ibss_mac_hash[i]) {
11683                         list_del(p);
11684                         kfree(list_entry(p, struct ipw_ibss_seq, list));
11685                 }
11686         }
11687
11688         kfree(priv->error);
11689         priv->error = NULL;
11690
11691 #ifdef CONFIG_IPW2200_PROMISCUOUS
11692         ipw_prom_free(priv);
11693 #endif
11694
11695         free_irq(pdev->irq, priv);
11696         iounmap(priv->hw_base);
11697         pci_release_regions(pdev);
11698         pci_disable_device(pdev);
11699         pci_set_drvdata(pdev, NULL);
11700         free_ieee80211(priv->net_dev);
11701         free_firmware();
11702 }
11703
11704 #ifdef CONFIG_PM
11705 static int ipw_pci_suspend(struct pci_dev *pdev, pm_message_t state)
11706 {
11707         struct ipw_priv *priv = pci_get_drvdata(pdev);
11708         struct net_device *dev = priv->net_dev;
11709
11710         printk(KERN_INFO "%s: Going into suspend...\n", dev->name);
11711
11712         /* Take down the device; powers it off, etc. */
11713         ipw_down(priv);
11714
11715         /* Remove the PRESENT state of the device */
11716         netif_device_detach(dev);
11717
11718         pci_save_state(pdev);
11719         pci_disable_device(pdev);
11720         pci_set_power_state(pdev, pci_choose_state(pdev, state));
11721
11722         return 0;
11723 }
11724
11725 static int ipw_pci_resume(struct pci_dev *pdev)
11726 {
11727         struct ipw_priv *priv = pci_get_drvdata(pdev);
11728         struct net_device *dev = priv->net_dev;
11729         u32 val;
11730
11731         printk(KERN_INFO "%s: Coming out of suspend...\n", dev->name);
11732
11733         pci_set_power_state(pdev, PCI_D0);
11734         pci_enable_device(pdev);
11735         pci_restore_state(pdev);
11736
11737         /*
11738          * Suspend/Resume resets the PCI configuration space, so we have to
11739          * re-disable the RETRY_TIMEOUT register (0x41) to keep PCI Tx retries
11740          * from interfering with C3 CPU state. pci_restore_state won't help
11741          * here since it only restores the first 64 bytes pci config header.
11742          */
11743         pci_read_config_dword(pdev, 0x40, &val);
11744         if ((val & 0x0000ff00) != 0)
11745                 pci_write_config_dword(pdev, 0x40, val & 0xffff00ff);
11746
11747         /* Set the device back into the PRESENT state; this will also wake
11748          * the queue of needed */
11749         netif_device_attach(dev);
11750
11751         /* Bring the device back up */
11752         queue_work(priv->workqueue, &priv->up);
11753
11754         return 0;
11755 }
11756 #endif
11757
11758 /* driver initialization stuff */
11759 static struct pci_driver ipw_driver = {
11760         .name = DRV_NAME,
11761         .id_table = card_ids,
11762         .probe = ipw_pci_probe,
11763         .remove = __devexit_p(ipw_pci_remove),
11764 #ifdef CONFIG_PM
11765         .suspend = ipw_pci_suspend,
11766         .resume = ipw_pci_resume,
11767 #endif
11768 };
11769
11770 static int __init ipw_init(void)
11771 {
11772         int ret;
11773
11774         printk(KERN_INFO DRV_NAME ": " DRV_DESCRIPTION ", " DRV_VERSION "\n");
11775         printk(KERN_INFO DRV_NAME ": " DRV_COPYRIGHT "\n");
11776
11777         ret = pci_module_init(&ipw_driver);
11778         if (ret) {
11779                 IPW_ERROR("Unable to initialize PCI module\n");
11780                 return ret;
11781         }
11782
11783         ret = driver_create_file(&ipw_driver.driver, &driver_attr_debug_level);
11784         if (ret) {
11785                 IPW_ERROR("Unable to create driver sysfs file\n");
11786                 pci_unregister_driver(&ipw_driver);
11787                 return ret;
11788         }
11789
11790         return ret;
11791 }
11792
11793 static void __exit ipw_exit(void)
11794 {
11795         driver_remove_file(&ipw_driver.driver, &driver_attr_debug_level);
11796         pci_unregister_driver(&ipw_driver);
11797 }
11798
11799 module_param(disable, int, 0444);
11800 MODULE_PARM_DESC(disable, "manually disable the radio (default 0 [radio on])");
11801
11802 module_param(associate, int, 0444);
11803 MODULE_PARM_DESC(associate, "auto associate when scanning (default on)");
11804
11805 module_param(auto_create, int, 0444);
11806 MODULE_PARM_DESC(auto_create, "auto create adhoc network (default on)");
11807
11808 module_param(led, int, 0444);
11809 MODULE_PARM_DESC(led, "enable led control on some systems (default 0 off)\n");
11810
11811 #ifdef CONFIG_IPW2200_DEBUG
11812 module_param(debug, int, 0444);
11813 MODULE_PARM_DESC(debug, "debug output mask");
11814 #endif
11815
11816 module_param(channel, int, 0444);
11817 MODULE_PARM_DESC(channel, "channel to limit associate to (default 0 [ANY])");
11818
11819 #ifdef CONFIG_IPW2200_PROMISCUOUS
11820 module_param(rtap_iface, int, 0444);
11821 MODULE_PARM_DESC(rtap_iface, "create the rtap interface (1 - create, default 0)");
11822 #endif
11823
11824 #ifdef CONFIG_IPW2200_QOS
11825 module_param(qos_enable, int, 0444);
11826 MODULE_PARM_DESC(qos_enable, "enable all QoS functionalitis");
11827
11828 module_param(qos_burst_enable, int, 0444);
11829 MODULE_PARM_DESC(qos_burst_enable, "enable QoS burst mode");
11830
11831 module_param(qos_no_ack_mask, int, 0444);
11832 MODULE_PARM_DESC(qos_no_ack_mask, "mask Tx_Queue to no ack");
11833
11834 module_param(burst_duration_CCK, int, 0444);
11835 MODULE_PARM_DESC(burst_duration_CCK, "set CCK burst value");
11836
11837 module_param(burst_duration_OFDM, int, 0444);
11838 MODULE_PARM_DESC(burst_duration_OFDM, "set OFDM burst value");
11839 #endif                          /* CONFIG_IPW2200_QOS */
11840
11841 #ifdef CONFIG_IPW2200_MONITOR
11842 module_param(mode, int, 0444);
11843 MODULE_PARM_DESC(mode, "network mode (0=BSS,1=IBSS,2=Monitor)");
11844 #else
11845 module_param(mode, int, 0444);
11846 MODULE_PARM_DESC(mode, "network mode (0=BSS,1=IBSS)");
11847 #endif
11848
11849 module_param(bt_coexist, int, 0444);
11850 MODULE_PARM_DESC(bt_coexist, "enable bluetooth coexistence (default off)");
11851
11852 module_param(hwcrypto, int, 0444);
11853 MODULE_PARM_DESC(hwcrypto, "enable hardware crypto (default off)");
11854
11855 module_param(cmdlog, int, 0444);
11856 MODULE_PARM_DESC(cmdlog,
11857                  "allocate a ring buffer for logging firmware commands");
11858
11859 module_param(roaming, int, 0444);
11860 MODULE_PARM_DESC(roaming, "enable roaming support (default on)");
11861
11862 module_param(antenna, int, 0444);
11863 MODULE_PARM_DESC(antenna, "select antenna 1=Main, 3=Aux, default 0 [both], 2=slow_diversity (choose the one with lower background noise)");
11864
11865 module_exit(ipw_exit);
11866 module_init(ipw_init);