drivers/isdn/hisax/niccy.c

   1 /* $Id: niccy.c,v 1.21.2.4 2004/01/13 23:48:39 keil Exp $
   2  *
   3  * low level stuff for Dr. Neuhaus NICCY PnP and NICCY PCI and
   4  * compatible (SAGEM cybermodem)
   5  *
   6  * Author       Karsten Keil
   7  * Copyright    by Karsten Keil      <keil@isdn4linux.de>
   8  *
   9  * This software may be used and distributed according to the terms
  10  * of the GNU General Public License, incorporated herein by reference.
  11  *
  12  * Thanks to Dr. Neuhaus and SAGEM for information
  13  *
  14  */
  15
  16
  17 #include <linux/config.h>
  18 #include <linux/init.h>
  19 #include "hisax.h"
  20 #include "isac.h"
  21 #include "hscx.h"
  22 #include "isdnl1.h"
  23 #include <linux/pci.h>
  24 #include <linux/isapnp.h>
  25
  26 extern const char *CardType[];
  27 const char *niccy_revision = "$Revision: 1.21.2.4 $";
  28
  29 #define byteout(addr,val) outb(val,addr)
  30 #define bytein(addr) inb(addr)
  31
  32 #define ISAC_PCI_DATA   0
  33 #define HSCX_PCI_DATA   1
  34 #define ISAC_PCI_ADDR   2
  35 #define HSCX_PCI_ADDR   3
  36 #define ISAC_PNP        0
  37 #define HSCX_PNP        1
  38
  39 /* SUB Types */
  40 #define NICCY_PNP       1
  41 #define NICCY_PCI       2
  42
  43 /* PCI stuff */
  44 #define PCI_IRQ_CTRL_REG        0x38
  45 #define PCI_IRQ_ENABLE          0x1f00
  46 #define PCI_IRQ_DISABLE         0xff0000
  47 #define PCI_IRQ_ASSERT          0x800000
  48
  49 static inline u_char
  50 readreg(unsigned int ale, unsigned int adr, u_char off)
  51 {
  52         register u_char ret;
  53
  54         byteout(ale, off);
  55         ret = bytein(adr);
  56         return (ret);
  57 }
  58
  59 static inline void
  60 readfifo(unsigned int ale, unsigned int adr, u_char off, u_char * data, int size)
  61 {
  62         byteout(ale, off);
  63         insb(adr, data, size);
  64 }
  65
  66
  67 static inline void
  68 writereg(unsigned int ale, unsigned int adr, u_char off, u_char data)
  69 {
  70         byteout(ale, off);
  71         byteout(adr, data);
  72 }
  73
  74 static inline void
  75 writefifo(unsigned int ale, unsigned int adr, u_char off, u_char * data, int size)
  76 {
  77         byteout(ale, off);
  78         outsb(adr, data, size);
  79 }
  80
  81 /* Interface functions */
  82
  83 static u_char
  84 ReadISAC(struct IsdnCardState *cs, u_char offset)
  85 {
  86         return (readreg(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, offset));
  87 }
  88
  89 static void
  90 WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
  91 {
  92         writereg(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, offset, value);
  93 }
  94
  95 static void
  96 ReadISACfifo(struct IsdnCardState *cs, u_char * data, int size)
  97 {
  98         readfifo(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, 0, data, size);
  99 }
 100
 101 static void
 102 WriteISACfifo(struct IsdnCardState *cs, u_char * data, int size)
 103 {
 104         writefifo(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, 0, data, size);
 105 }
 106
 107 static u_char
 108 ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset)
 109 {
 110         return (readreg(cs->hw.niccy.hscx_ale,
 111                         cs->hw.niccy.hscx, offset + (hscx ? 0x40 : 0)));
 112 }
 113
 114 static void
 115 WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value)
 116 {
 117         writereg(cs->hw.niccy.hscx_ale,
 118                  cs->hw.niccy.hscx, offset + (hscx ? 0x40 : 0), value);
 119 }
 120
 121 #define READHSCX(cs, nr, reg) readreg(cs->hw.niccy.hscx_ale, \
 122                 cs->hw.niccy.hscx, reg + (nr ? 0x40 : 0))
 123 #define WRITEHSCX(cs, nr, reg, data) writereg(cs->hw.niccy.hscx_ale, \
 124                 cs->hw.niccy.hscx, reg + (nr ? 0x40 : 0), data)
 125
 126 #define READHSCXFIFO(cs, nr, ptr, cnt) readfifo(cs->hw.niccy.hscx_ale, \
 127                 cs->hw.niccy.hscx, (nr ? 0x40 : 0), ptr, cnt)
 128
 129 #define WRITEHSCXFIFO(cs, nr, ptr, cnt) writefifo(cs->hw.niccy.hscx_ale, \
 130                 cs->hw.niccy.hscx, (nr ? 0x40 : 0), ptr, cnt)
 131
 132 #include "hscx_irq.c"
 133
 134 static irqreturn_t
 135 niccy_interrupt(int intno, void *dev_id, struct pt_regs *regs)
 136 {
 137         struct IsdnCardState *cs = dev_id;
 138         u_char val;
 139         u_long flags;
 140
 141         spin_lock_irqsave(&cs->lock, flags);
 142         if (cs->subtyp == NICCY_PCI) {
 143                 int ival;
 144                 ival = inl(cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG);
 145                 if (!(ival & PCI_IRQ_ASSERT)) { /* IRQ not for us (shared) */
 146                         spin_unlock_irqrestore(&cs->lock, flags);
 147                         return IRQ_NONE;
 148                 }
 149                 outl(ival, cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG);
 150         }
 151         val = readreg(cs->hw.niccy.hscx_ale, cs->hw.niccy.hscx, HSCX_ISTA + 0x40);
 152       Start_HSCX:
 153         if (val)
 154                 hscx_int_main(cs, val);
 155         val = readreg(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, ISAC_ISTA);
 156       Start_ISAC:
 157         if (val)
 158                 isac_interrupt(cs, val);
 159         val = readreg(cs->hw.niccy.hscx_ale, cs->hw.niccy.hscx, HSCX_ISTA + 0x40);
 160         if (val) {
 161                 if (cs->debug & L1_DEB_HSCX)
 162                         debugl1(cs, "HSCX IntStat after IntRoutine");
 163                 goto Start_HSCX;
 164         }
 165         val = readreg(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, ISAC_ISTA);
 166         if (val) {
 167                 if (cs->debug & L1_DEB_ISAC)
 168                         debugl1(cs, "ISAC IntStat after IntRoutine");
 169                 goto Start_ISAC;
 170         }
 171         writereg(cs->hw.niccy.hscx_ale, cs->hw.niccy.hscx, HSCX_MASK, 0xFF);
 172         writereg(cs->hw.niccy.hscx_ale, cs->hw.niccy.hscx, HSCX_MASK + 0x40, 0xFF);
 173         writereg(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, ISAC_MASK, 0xFF);
 174         writereg(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, ISAC_MASK, 0);
 175         writereg(cs->hw.niccy.hscx_ale, cs->hw.niccy.hscx, HSCX_MASK, 0);
 176         writereg(cs->hw.niccy.hscx_ale, cs->hw.niccy.hscx, HSCX_MASK + 0x40, 0);
 177         spin_unlock_irqrestore(&cs->lock, flags);
 178         return IRQ_HANDLED;
 179 }
 180
 181 void
 182 release_io_niccy(struct IsdnCardState *cs)
 183 {
 184         if (cs->subtyp == NICCY_PCI) {
 185                 int val;
 186
 187                 val = inl(cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG);
 188                 val &= PCI_IRQ_DISABLE;
 189                 outl(val, cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG);
 190                 release_region(cs->hw.niccy.cfg_reg, 0x40);
 191                 release_region(cs->hw.niccy.isac, 4);
 192         } else {
 193                 release_region(cs->hw.niccy.isac, 2);
 194                 release_region(cs->hw.niccy.isac_ale, 2);
 195         }
 196 }
 197
 198 static void
 199 niccy_reset(struct IsdnCardState *cs)
 200 {
 201         if (cs->subtyp == NICCY_PCI) {
 202                 int val;
 203
 204                 val = inl(cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG);
 205                 val |= PCI_IRQ_ENABLE;
 206                 outl(val, cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG);
 207         }
 208         inithscxisac(cs, 3);
 209 }
 210
 211 static int
 212 niccy_card_msg(struct IsdnCardState *cs, int mt, void *arg)
 213 {
 214         u_long flags;
 215
 216         switch (mt) {
 217                 case CARD_RESET:
 218                         spin_lock_irqsave(&cs->lock, flags);
 219                         niccy_reset(cs);
 220                         spin_unlock_irqrestore(&cs->lock, flags);
 221                         return(0);
 222                 case CARD_RELEASE:
 223                         release_io_niccy(cs);
 224                         return(0);
 225                 case CARD_INIT:
 226                         spin_lock_irqsave(&cs->lock, flags);
 227                         niccy_reset(cs);
 228                         spin_unlock_irqrestore(&cs->lock, flags);
 229                         return(0);
 230                 case CARD_TEST:
 231                         return(0);
 232         }
 233         return(0);
 234 }
 235
 236 static struct pci_dev *niccy_dev __initdata = NULL;
 237 #ifdef __ISAPNP__
 238 static struct pnp_card *pnp_c __devinitdata = NULL;
 239 #endif
 240
 241 int __init
 242 setup_niccy(struct IsdnCard *card)
 243 {
 244         struct IsdnCardState *cs = card->cs;
 245         char tmp[64];
 246
 247         strcpy(tmp, niccy_revision);
 248         printk(KERN_INFO "HiSax: Niccy driver Rev. %s\n", HiSax_getrev(tmp));
 249         if (cs->typ != ISDN_CTYPE_NICCY)
 250                 return (0);
 251 #ifdef __ISAPNP__
 252         if (!card->para[1] && isapnp_present()) {
 253                 struct pnp_dev *pnp_d = NULL;
 254                 int err;
 255
 256                 if ((pnp_c = pnp_find_card(
 257                         ISAPNP_VENDOR('S', 'D', 'A'),
 258                         ISAPNP_FUNCTION(0x0150), pnp_c))) {
 259                         if (!(pnp_d = pnp_find_dev(pnp_c,
 260                                 ISAPNP_VENDOR('S', 'D', 'A'),
 261                                 ISAPNP_FUNCTION(0x0150), pnp_d))) {
 262                                 printk(KERN_ERR "NiccyPnP: PnP error card found, no device\n");
 263                                 return (0);
 264                         }
 265                         pnp_disable_dev(pnp_d);
 266                         err = pnp_activate_dev(pnp_d);
 267                         if (err<0) {
 268                                 printk(KERN_WARNING "%s: pnp_activate_dev ret(%d)\n",
 269                                         __FUNCTION__, err);
 270                                 return(0);
 271                         }
 272                         card->para[1] = pnp_port_start(pnp_d, 0);
 273                         card->para[2] = pnp_port_start(pnp_d, 1);
 274                         card->para[0] = pnp_irq(pnp_d, 0);
 275                         if (!card->para[0] || !card->para[1] || !card->para[2]) {
 276                                 printk(KERN_ERR "NiccyPnP:some resources are missing %ld/%lx/%lx\n",
 277                                         card->para[0], card->para[1], card->para[2]);
 278                                 pnp_disable_dev(pnp_d);
 279                                 return(0);
 280                         }
 281                 } else {
 282                         printk(KERN_INFO "NiccyPnP: no ISAPnP card found\n");
 283                 }
 284         }
 285 #endif
 286         if (card->para[1]) {
 287                 cs->hw.niccy.isac = card->para[1] + ISAC_PNP;
 288                 cs->hw.niccy.hscx = card->para[1] + HSCX_PNP;
 289                 cs->hw.niccy.isac_ale = card->para[2] + ISAC_PNP;
 290                 cs->hw.niccy.hscx_ale = card->para[2] + HSCX_PNP;
 291                 cs->hw.niccy.cfg_reg = 0;
 292                 cs->subtyp = NICCY_PNP;
 293                 cs->irq = card->para[0];
 294                 if (!request_region(cs->hw.niccy.isac, 2, "niccy data")) {
 295                         printk(KERN_WARNING
 296                                 "HiSax: %s data port %x-%x already in use\n",
 297                                 CardType[card->typ],
 298                                 cs->hw.niccy.isac,
 299                                 cs->hw.niccy.isac + 1);
 300                         return (0);
 301                 }
 302                 if (!request_region(cs->hw.niccy.isac_ale, 2, "niccy addr")) {
 303                         printk(KERN_WARNING
 304                                 "HiSax: %s address port %x-%x already in use\n",
 305                                 CardType[card->typ],
 306                                 cs->hw.niccy.isac_ale,
 307                                 cs->hw.niccy.isac_ale + 1);
 308                         release_region(cs->hw.niccy.isac, 2);
 309                         return (0);
 310                 }
 311         } else {
 312 #if CONFIG_PCI
 313                 u_int pci_ioaddr;
 314                 cs->subtyp = 0;
 315                 if ((niccy_dev = pci_find_device(PCI_VENDOR_ID_SATSAGEM,
 316                         PCI_DEVICE_ID_SATSAGEM_NICCY, niccy_dev))) {
 317                         if (pci_enable_device(niccy_dev))
 318                                 return(0);
 319                         /* get IRQ */
 320                         if (!niccy_dev->irq) {
 321                                 printk(KERN_WARNING "Niccy: No IRQ for PCI card found\n");
 322                                 return(0);
 323                         }
 324                         cs->irq = niccy_dev->irq;
 325                         cs->hw.niccy.cfg_reg = pci_resource_start(niccy_dev, 0);
 326                         if (!cs->hw.niccy.cfg_reg) {
 327                                 printk(KERN_WARNING "Niccy: No IO-Adr for PCI cfg found\n");
 328                                 return(0);
 329                         }
 330                         pci_ioaddr = pci_resource_start(niccy_dev, 1);
 331                         if (!pci_ioaddr) {
 332                                 printk(KERN_WARNING "Niccy: No IO-Adr for PCI card found\n");
 333                                 return(0);
 334                         }
 335                         cs->subtyp = NICCY_PCI;
 336                 } else {
 337                         printk(KERN_WARNING "Niccy: No PCI card found\n");
 338                         return(0);
 339                 }
 340                 cs->irq_flags |= SA_SHIRQ;
 341                 cs->hw.niccy.isac = pci_ioaddr + ISAC_PCI_DATA;
 342                 cs->hw.niccy.isac_ale = pci_ioaddr + ISAC_PCI_ADDR;
 343                 cs->hw.niccy.hscx = pci_ioaddr + HSCX_PCI_DATA;
 344                 cs->hw.niccy.hscx_ale = pci_ioaddr + HSCX_PCI_ADDR;
 345                 if (!request_region(cs->hw.niccy.isac, 4, "niccy")) {
 346                         printk(KERN_WARNING
 347                                 "HiSax: %s data port %x-%x already in use\n",
 348                                 CardType[card->typ],
 349                                 cs->hw.niccy.isac,
 350                                 cs->hw.niccy.isac + 4);
 351                         return (0);
 352                 }
 353                 if (!request_region(cs->hw.niccy.cfg_reg, 0x40, "niccy pci")) {
 354                         printk(KERN_WARNING
 355                                "HiSax: %s pci port %x-%x already in use\n",
 356                                 CardType[card->typ],
 357                                 cs->hw.niccy.cfg_reg,
 358                                 cs->hw.niccy.cfg_reg + 0x40);
 359                         release_region(cs->hw.niccy.isac, 4);
 360                         return (0);
 361                 }
 362 #else
 363                 printk(KERN_WARNING "Niccy: io0 0 and NO_PCI_BIOS\n");
 364                 printk(KERN_WARNING "Niccy: unable to config NICCY PCI\n");
 365                 return (0);
 366 #endif /* CONFIG_PCI */
 367         }
 368         printk(KERN_INFO "HiSax: %s %s config irq:%d data:0x%X ale:0x%X\n",
 369                 CardType[cs->typ], (cs->subtyp==1) ? "PnP":"PCI",
 370                 cs->irq, cs->hw.niccy.isac, cs->hw.niccy.isac_ale);
 371         setup_isac(cs);
 372         cs->readisac = &ReadISAC;
 373         cs->writeisac = &WriteISAC;
 374         cs->readisacfifo = &ReadISACfifo;
 375         cs->writeisacfifo = &WriteISACfifo;
 376         cs->BC_Read_Reg = &ReadHSCX;
 377         cs->BC_Write_Reg = &WriteHSCX;
 378         cs->BC_Send_Data = &hscx_fill_fifo;
 379         cs->cardmsg = &niccy_card_msg;
 380         cs->irq_func = &niccy_interrupt;
 381         ISACVersion(cs, "Niccy:");
 382         if (HscxVersion(cs, "Niccy:")) {
 383                 printk(KERN_WARNING
 384                     "Niccy: wrong HSCX versions check IO address\n");
 385                 release_io_niccy(cs);
 386                 return (0);
 387         }
 388         return (1);
 389 }