drivers/isdn/hardware/avm/avmcard.h

   1 /* $Id: avmcard.h,v 1.1.4.1.2.1 2001/12/21 15:00:17 kai Exp $
   2  *
   3  * Copyright 1999 by Carsten Paeth <calle@calle.de>
   4  *
   5  * This software may be used and distributed according to the terms
   6  * of the GNU General Public License, incorporated herein by reference.
   7  *
   8  */
   9
  10 #ifndef _AVMCARD_H_
  11 #define _AVMCARD_H_
  12
  13 #include <linux/spinlock.h>
  14 #include <linux/list.h>
  15 #include <linux/interrupt.h>
  16
  17 #define AVMB1_PORTLEN           0x1f
  18 #define AVM_MAXVERSION          8
  19 #define AVM_NCCI_PER_CHANNEL    4
  20
  21 /*
  22  * Versions
  23  */
  24
  25 #define VER_DRIVER      0
  26 #define VER_CARDTYPE    1
  27 #define VER_HWID        2
  28 #define VER_SERIAL      3
  29 #define VER_OPTION      4
  30 #define VER_PROTO       5
  31 #define VER_PROFILE     6
  32 #define VER_CAPI        7
  33
  34 enum avmcardtype {
  35         avm_b1isa,
  36         avm_b1pci,
  37         avm_b1pcmcia,
  38         avm_m1,
  39         avm_m2,
  40         avm_t1isa,
  41         avm_t1pci,
  42         avm_c4,
  43         avm_c2
  44 };
  45
  46 typedef struct avmcard_dmabuf {
  47     long        size;
  48     u8       *dmabuf;
  49     dma_addr_t  dmaaddr;
  50 } avmcard_dmabuf;
  51
  52 typedef struct avmcard_dmainfo {
  53         u32                recvlen;
  54         avmcard_dmabuf       recvbuf;
  55
  56         avmcard_dmabuf       sendbuf;
  57         struct sk_buff_head  send_queue;
  58
  59         struct pci_dev      *pcidev;
  60 } avmcard_dmainfo;
  61
  62 typedef struct avmctrl_info {
  63         char cardname[32];
  64
  65         int versionlen;
  66         char versionbuf[1024];
  67         char *version[AVM_MAXVERSION];
  68
  69         char infobuf[128];      /* for function procinfo */
  70
  71         struct avmcard  *card;
  72         struct capi_ctr  capi_ctrl;
  73
  74         struct list_head ncci_head;
  75 } avmctrl_info;
  76
  77 typedef struct avmcard {
  78         char name[32];
  79
  80         spinlock_t lock;
  81         unsigned int port;
  82         unsigned irq;
  83         unsigned long membase;
  84         enum avmcardtype cardtype;
  85         unsigned char revision;
  86         unsigned char class;
  87         int cardnr; /* for t1isa */
  88
  89         char msgbuf[128];       /* capimsg msg part */
  90         char databuf[2048];     /* capimsg data part */
  91
  92         void *mbase;
  93         volatile u32 csr;
  94         avmcard_dmainfo *dma;
  95
  96         struct avmctrl_info *ctrlinfo;
  97
  98         u_int nr_controllers;
  99         u_int nlogcontr;
 100         struct list_head list;
 101 } avmcard;
 102
 103 extern int b1_irq_table[16];
 104
 105 /*
 106  * LLI Messages to the ISDN-ControllerISDN Controller
 107  */
 108
 109 #define SEND_POLL               0x72    /*
 110                                            * after load <- RECEIVE_POLL
 111                                          */
 112 #define SEND_INIT               0x11    /*
 113                                            * first message <- RECEIVE_INIT
 114                                            * int32 NumApplications  int32
 115                                            * NumNCCIs int32 BoardNumber
 116                                          */
 117 #define SEND_REGISTER           0x12    /*
 118                                            * register an application int32
 119                                            * ApplIDId int32 NumMessages
 120                                            * int32 NumB3Connections int32
 121                                            * NumB3Blocks int32 B3Size
 122                                            *
 123                                            * AnzB3Connection != 0 &&
 124                                            * AnzB3Blocks >= 1 && B3Size >= 1
 125                                          */
 126 #define SEND_RELEASE            0x14    /*
 127                                            * deregister an application int32
 128                                            * ApplID
 129                                          */
 130 #define SEND_MESSAGE            0x15    /*
 131                                            * send capi-message int32 length
 132                                            * capi-data ...
 133                                          */
 134 #define SEND_DATA_B3_REQ        0x13    /*
 135                                            * send capi-data-message int32
 136                                            * MsgLength capi-data ... int32
 137                                            * B3Length data ....
 138                                          */
 139
 140 #define SEND_CONFIG             0x21    /*
 141                                          */
 142
 143 #define SEND_POLLACK            0x73    /* T1 Watchdog */
 144
 145 /*
 146  * LLI Messages from the ISDN-ControllerISDN Controller
 147  */
 148
 149 #define RECEIVE_POLL            0x32    /*
 150                                            * <- after SEND_POLL
 151                                          */
 152 #define RECEIVE_INIT            0x27    /*
 153                                            * <- after SEND_INIT int32 length
 154                                            * byte total length b1struct board
 155                                            * driver revision b1struct card
 156                                            * type b1struct reserved b1struct
 157                                            * serial number b1struct driver
 158                                            * capability b1struct d-channel
 159                                            * protocol b1struct CAPI-2.0
 160                                            * profile b1struct capi version
 161                                          */
 162 #define RECEIVE_MESSAGE         0x21    /*
 163                                            * <- after SEND_MESSAGE int32
 164                                            * AppllID int32 Length capi-data
 165                                            * ....
 166                                          */
 167 #define RECEIVE_DATA_B3_IND     0x22    /*
 168                                            * received data int32 AppllID
 169                                            * int32 Length capi-data ...
 170                                            * int32 B3Length data ...
 171                                          */
 172 #define RECEIVE_START           0x23    /*
 173                                            * Handshake
 174                                          */
 175 #define RECEIVE_STOP            0x24    /*
 176                                            * Handshake
 177                                          */
 178 #define RECEIVE_NEW_NCCI        0x25    /*
 179                                            * int32 AppllID int32 NCCI int32
 180                                            * WindowSize
 181                                          */
 182 #define RECEIVE_FREE_NCCI       0x26    /*
 183                                            * int32 AppllID int32 NCCI
 184                                          */
 185 #define RECEIVE_RELEASE         0x26    /*
 186                                            * int32 AppllID int32 0xffffffff
 187                                          */
 188 #define RECEIVE_TASK_READY      0x31    /*
 189                                            * int32 tasknr
 190                                            * int32 Length Taskname ...
 191                                          */
 192 #define RECEIVE_DEBUGMSG        0x71    /*
 193                                            * int32 Length message
 194                                            *
 195                                          */
 196 #define RECEIVE_POLLDWORD       0x75    /* t1pci in dword mode */
 197
 198 #define WRITE_REGISTER          0x00
 199 #define READ_REGISTER           0x01
 200
 201 /*
 202  * port offsets
 203  */
 204
 205 #define B1_READ                 0x00
 206 #define B1_WRITE                0x01
 207 #define B1_INSTAT               0x02
 208 #define B1_OUTSTAT              0x03
 209 #define B1_ANALYSE              0x04
 210 #define B1_REVISION             0x05
 211 #define B1_RESET                0x10
 212
 213
 214 #define B1_STAT0(cardtype)  ((cardtype) == avm_m1 ? 0x81200000l : 0x80A00000l)
 215 #define B1_STAT1(cardtype)  (0x80E00000l)
 216
 217 /* ---------------------------------------------------------------- */
 218
 219 static inline unsigned char b1outp(unsigned int base,
 220                                    unsigned short offset,
 221                                    unsigned char value)
 222 {
 223         outb(value, base + offset);
 224         return inb(base + B1_ANALYSE);
 225 }
 226
 227
 228 static inline int b1_rx_full(unsigned int base)
 229 {
 230         return inb(base + B1_INSTAT) & 0x1;
 231 }
 232
 233 static inline unsigned char b1_get_byte(unsigned int base)
 234 {
 235         unsigned long stop = jiffies + 1 * HZ;  /* maximum wait time 1 sec */
 236         while (!b1_rx_full(base) && time_before(jiffies, stop));
 237         if (b1_rx_full(base))
 238                 return inb(base + B1_READ);
 239         printk(KERN_CRIT "b1lli(0x%x): rx not full after 1 second\n", base);
 240         return 0;
 241 }
 242
 243 static inline unsigned int b1_get_word(unsigned int base)
 244 {
 245         unsigned int val = 0;
 246         val |= b1_get_byte(base);
 247         val |= (b1_get_byte(base) << 8);
 248         val |= (b1_get_byte(base) << 16);
 249         val |= (b1_get_byte(base) << 24);
 250         return val;
 251 }
 252
 253 static inline int b1_tx_empty(unsigned int base)
 254 {
 255         return inb(base + B1_OUTSTAT) & 0x1;
 256 }
 257
 258 static inline void b1_put_byte(unsigned int base, unsigned char val)
 259 {
 260         while (!b1_tx_empty(base));
 261         b1outp(base, B1_WRITE, val);
 262 }
 263
 264 static inline int b1_save_put_byte(unsigned int base, unsigned char val)
 265 {
 266         unsigned long stop = jiffies + 2 * HZ;
 267         while (!b1_tx_empty(base) && time_before(jiffies,stop));
 268         if (!b1_tx_empty(base)) return -1;
 269         b1outp(base, B1_WRITE, val);
 270         return 0;
 271 }
 272
 273 static inline void b1_put_word(unsigned int base, unsigned int val)
 274 {
 275         b1_put_byte(base, val & 0xff);
 276         b1_put_byte(base, (val >> 8) & 0xff);
 277         b1_put_byte(base, (val >> 16) & 0xff);
 278         b1_put_byte(base, (val >> 24) & 0xff);
 279 }
 280
 281 static inline unsigned int b1_get_slice(unsigned int base,
 282                                         unsigned char *dp)
 283 {
 284         unsigned int len, i;
 285
 286         len = i = b1_get_word(base);
 287         while (i-- > 0) *dp++ = b1_get_byte(base);
 288         return len;
 289 }
 290
 291 static inline void b1_put_slice(unsigned int base,
 292                                 unsigned char *dp, unsigned int len)
 293 {
 294         unsigned i = len;
 295         b1_put_word(base, i);
 296         while (i-- > 0)
 297                 b1_put_byte(base, *dp++);
 298 }
 299
 300 static void b1_wr_reg(unsigned int base,
 301                       unsigned int reg,
 302                       unsigned int value)
 303 {
 304         b1_put_byte(base, WRITE_REGISTER);
 305         b1_put_word(base, reg);
 306         b1_put_word(base, value);
 307 }
 308
 309 static inline unsigned int b1_rd_reg(unsigned int base,
 310                                      unsigned int reg)
 311 {
 312         b1_put_byte(base, READ_REGISTER);
 313         b1_put_word(base, reg);
 314         return b1_get_word(base);
 315
 316 }
 317
 318 static inline void b1_reset(unsigned int base)
 319 {
 320         b1outp(base, B1_RESET, 0);
 321         mdelay(55 * 2); /* 2 TIC's */
 322
 323         b1outp(base, B1_RESET, 1);
 324         mdelay(55 * 2); /* 2 TIC's */
 325
 326         b1outp(base, B1_RESET, 0);
 327         mdelay(55 * 2); /* 2 TIC's */
 328 }
 329
 330 static inline unsigned char b1_disable_irq(unsigned int base)
 331 {
 332         return b1outp(base, B1_INSTAT, 0x00);
 333 }
 334
 335 /* ---------------------------------------------------------------- */
 336
 337 static inline void b1_set_test_bit(unsigned int base,
 338                                    enum avmcardtype cardtype,
 339                                    int onoff)
 340 {
 341     b1_wr_reg(base, B1_STAT0(cardtype), onoff ? 0x21 : 0x20);
 342 }
 343
 344 static inline int b1_get_test_bit(unsigned int base,
 345                                   enum avmcardtype cardtype)
 346 {
 347     return (b1_rd_reg(base, B1_STAT0(cardtype)) & 0x01) != 0;
 348 }
 349
 350 /* ---------------------------------------------------------------- */
 351
 352 #define T1_FASTLINK             0x00
 353 #define T1_SLOWLINK             0x08
 354
 355 #define T1_READ                 B1_READ
 356 #define T1_WRITE                B1_WRITE
 357 #define T1_INSTAT               B1_INSTAT
 358 #define T1_OUTSTAT              B1_OUTSTAT
 359 #define T1_IRQENABLE            0x05
 360 #define T1_FIFOSTAT             0x06
 361 #define T1_RESETLINK            0x10
 362 #define T1_ANALYSE              0x11
 363 #define T1_IRQMASTER            0x12
 364 #define T1_IDENT                0x17
 365 #define T1_RESETBOARD           0x1f
 366
 367 #define T1F_IREADY              0x01
 368 #define T1F_IHALF               0x02
 369 #define T1F_IFULL               0x04
 370 #define T1F_IEMPTY              0x08
 371 #define T1F_IFLAGS              0xF0
 372
 373 #define T1F_OREADY              0x10
 374 #define T1F_OHALF               0x20
 375 #define T1F_OEMPTY              0x40
 376 #define T1F_OFULL               0x80
 377 #define T1F_OFLAGS              0xF0
 378
 379 /* there are HEMA cards with 1k and 4k FIFO out */
 380 #define FIFO_OUTBSIZE           256
 381 #define FIFO_INPBSIZE           512
 382
 383 #define HEMA_VERSION_ID         0
 384 #define HEMA_PAL_ID             0
 385
 386 static inline void t1outp(unsigned int base,
 387                           unsigned short offset,
 388                           unsigned char value)
 389 {
 390         outb(value, base + offset);
 391 }
 392
 393 static inline unsigned char t1inp(unsigned int base,
 394                                   unsigned short offset)
 395 {
 396         return inb(base + offset);
 397 }
 398
 399 static inline int t1_isfastlink(unsigned int base)
 400 {
 401         return (inb(base + T1_IDENT) & ~0x82) == 1;
 402 }
 403
 404 static inline unsigned char t1_fifostatus(unsigned int base)
 405 {
 406         return inb(base + T1_FIFOSTAT);
 407 }
 408
 409 static inline unsigned int t1_get_slice(unsigned int base,
 410                                         unsigned char *dp)
 411 {
 412         unsigned int len, i;
 413 #ifdef FASTLINK_DEBUG
 414         unsigned wcnt = 0, bcnt = 0;
 415 #endif
 416
 417         len = i = b1_get_word(base);
 418         if (t1_isfastlink(base)) {
 419                 int status;
 420                 while (i > 0) {
 421                         status = t1_fifostatus(base) & (T1F_IREADY|T1F_IHALF);
 422                         if (i >= FIFO_INPBSIZE) status |= T1F_IFULL;
 423
 424                         switch (status) {
 425                                 case T1F_IREADY|T1F_IHALF|T1F_IFULL:
 426                                         insb(base+B1_READ, dp, FIFO_INPBSIZE);
 427                                         dp += FIFO_INPBSIZE;
 428                                         i -= FIFO_INPBSIZE;
 429 #ifdef FASTLINK_DEBUG
 430                                         wcnt += FIFO_INPBSIZE;
 431 #endif
 432                                         break;
 433                                 case T1F_IREADY|T1F_IHALF:
 434                                         insb(base+B1_READ,dp, i);
 435 #ifdef FASTLINK_DEBUG
 436                                         wcnt += i;
 437 #endif
 438                                         dp += i;
 439                                         i = 0;
 440                                         if (i == 0)
 441                                                 break;
 442                                         /* fall through */
 443                                 default:
 444                                         *dp++ = b1_get_byte(base);
 445                                         i--;
 446 #ifdef FASTLINK_DEBUG
 447                                         bcnt++;
 448 #endif
 449                                         break;
 450                         }
 451             }
 452 #ifdef FASTLINK_DEBUG
 453             if (wcnt)
 454             printk(KERN_DEBUG "b1lli(0x%x): get_slice l=%d w=%d b=%d\n",
 455                                 base, len, wcnt, bcnt);
 456 #endif
 457         } else {
 458                 while (i-- > 0)
 459                         *dp++ = b1_get_byte(base);
 460         }
 461         return len;
 462 }
 463
 464 static inline void t1_put_slice(unsigned int base,
 465                                 unsigned char *dp, unsigned int len)
 466 {
 467         unsigned i = len;
 468         b1_put_word(base, i);
 469         if (t1_isfastlink(base)) {
 470                 int status;
 471                 while (i > 0) {
 472                         status = t1_fifostatus(base) & (T1F_OREADY|T1F_OHALF);
 473                         if (i >= FIFO_OUTBSIZE) status |= T1F_OEMPTY;
 474                         switch (status) {
 475                                 case T1F_OREADY|T1F_OHALF|T1F_OEMPTY:
 476                                         outsb(base+B1_WRITE, dp, FIFO_OUTBSIZE);
 477                                         dp += FIFO_OUTBSIZE;
 478                                         i -= FIFO_OUTBSIZE;
 479                                         break;
 480                                 case T1F_OREADY|T1F_OHALF:
 481                                         outsb(base+B1_WRITE, dp, i);
 482                                         dp += i;
 483                                         i = 0;
 484                                         break;
 485                                 default:
 486                                         b1_put_byte(base, *dp++);
 487                                         i--;
 488                                         break;
 489                         }
 490                 }
 491         } else {
 492                 while (i-- > 0)
 493                         b1_put_byte(base, *dp++);
 494         }
 495 }
 496
 497 static inline void t1_disable_irq(unsigned int base)
 498 {
 499       t1outp(base, T1_IRQMASTER, 0x00);
 500 }
 501
 502 static inline void t1_reset(unsigned int base)
 503 {
 504         /* reset T1 Controller */
 505         b1_reset(base);
 506         /* disable irq on HEMA */
 507         t1outp(base, B1_INSTAT, 0x00);
 508         t1outp(base, B1_OUTSTAT, 0x00);
 509         t1outp(base, T1_IRQMASTER, 0x00);
 510         /* reset HEMA board configuration */
 511         t1outp(base, T1_RESETBOARD, 0xf);
 512 }
 513
 514 static inline void b1_setinterrupt(unsigned int base, unsigned irq,
 515                                    enum avmcardtype cardtype)
 516 {
 517         switch (cardtype) {
 518            case avm_t1isa:
 519               t1outp(base, B1_INSTAT, 0x00);
 520               t1outp(base, B1_INSTAT, 0x02);
 521               t1outp(base, T1_IRQMASTER, 0x08);
 522               break;
 523            case avm_b1isa:
 524               b1outp(base, B1_INSTAT, 0x00);
 525               b1outp(base, B1_RESET, b1_irq_table[irq]);
 526               b1outp(base, B1_INSTAT, 0x02);
 527               break;
 528            default:
 529            case avm_m1:
 530            case avm_m2:
 531            case avm_b1pci:
 532               b1outp(base, B1_INSTAT, 0x00);
 533               b1outp(base, B1_RESET, 0xf0);
 534               b1outp(base, B1_INSTAT, 0x02);
 535               break;
 536            case avm_c4:
 537            case avm_t1pci:
 538               b1outp(base, B1_RESET, 0xf0);
 539               break;
 540          }
 541 }
 542
 543 /* b1.c */
 544 avmcard *b1_alloc_card(int nr_controllers);
 545 void b1_free_card(avmcard *card);
 546 int b1_detect(unsigned int base, enum avmcardtype cardtype);
 547 void b1_getrevision(avmcard *card);
 548 int b1_load_t4file(avmcard *card, capiloaddatapart * t4file);
 549 int b1_load_config(avmcard *card, capiloaddatapart * config);
 550 int b1_loaded(avmcard *card);
 551
 552 int b1_load_firmware(struct capi_ctr *ctrl, capiloaddata *data);
 553 void b1_reset_ctr(struct capi_ctr *ctrl);
 554 void b1_register_appl(struct capi_ctr *ctrl, u16 appl,
 555                                 capi_register_params *rp);
 556 void b1_release_appl(struct capi_ctr *ctrl, u16 appl);
 557 u16  b1_send_message(struct capi_ctr *ctrl, struct sk_buff *skb);
 558 void b1_parse_version(avmctrl_info *card);
 559 irqreturn_t b1_interrupt(int interrupt, void *devptr, struct pt_regs *regs);
 560
 561 int b1ctl_read_proc(char *page, char **start, off_t off,
 562                         int count, int *eof, struct capi_ctr *ctrl);
 563
 564 avmcard_dmainfo *avmcard_dma_alloc(char *name, struct pci_dev *,
 565                                    long rsize, long ssize);
 566 void avmcard_dma_free(avmcard_dmainfo *);
 567
 568 /* b1dma.c */
 569 int b1pciv4_detect(avmcard *card);
 570 int t1pci_detect(avmcard *card);
 571 void b1dma_reset(avmcard *card);
 572 irqreturn_t b1dma_interrupt(int interrupt, void *devptr, struct pt_regs *regs);
 573
 574 int b1dma_load_firmware(struct capi_ctr *ctrl, capiloaddata *data);
 575 void b1dma_reset_ctr(struct capi_ctr *ctrl);
 576 void b1dma_remove_ctr(struct capi_ctr *ctrl);
 577 void b1dma_register_appl(struct capi_ctr *ctrl,
 578                                 u16 appl,
 579                                 capi_register_params *rp);
 580 void b1dma_release_appl(struct capi_ctr *ctrl, u16 appl);
 581 u16  b1dma_send_message(struct capi_ctr *ctrl, struct sk_buff *skb);
 582 int b1dmactl_read_proc(char *page, char **start, off_t off,
 583                         int count, int *eof, struct capi_ctr *ctrl);
 584
 585 #endif /* _AVMCARD_H_ */