kernel/drivers/isdn/hisax/teles3.c

   1 /* $Id: teles3.c,v 2.19.2.4 2004/01/13 23:48:39 keil Exp $
   2  *
   3  * low level stuff for Teles 16.3 & PNP isdn cards
   4  *
   5  * Author       Karsten Keil
   6  * Copyright    by Karsten Keil      <keil@isdn4linux.de>
   7  *
   8  * This software may be used and distributed according to the terms
   9  * of the GNU General Public License, incorporated herein by reference.
  10  *
  11  * Thanks to    Jan den Ouden
  12  *              Fritz Elfert
  13  *              Beat Doebeli
  14  *
  15  */
  16 #include <linux/init.h>
  17 #include <linux/isapnp.h>
  18 #include "hisax.h"
  19 #include "isac.h"
  20 #include "hscx.h"
  21 #include "isdnl1.h"
  22
  23 static const char *teles3_revision = "$Revision: 2.19.2.4 $";
  24
  25 #define byteout(addr, val) outb(val, addr)
  26 #define bytein(addr) inb(addr)
  27
  28 static inline u_char
  29 readreg(unsigned int adr, u_char off)
  30 {
  31         return (bytein(adr + off));
  32 }
  33
  34 static inline void
  35 writereg(unsigned int adr, u_char off, u_char data)
  36 {
  37         byteout(adr + off, data);
  38 }
  39
  40
  41 static inline void
  42 read_fifo(unsigned int adr, u_char *data, int size)
  43 {
  44         insb(adr, data, size);
  45 }
  46
  47 static void
  48 write_fifo(unsigned int adr, u_char *data, int size)
  49 {
  50         outsb(adr, data, size);
  51 }
  52
  53 /* Interface functions */
  54
  55 static u_char
  56 ReadISAC(struct IsdnCardState *cs, u_char offset)
  57 {
  58         return (readreg(cs->hw.teles3.isac, offset));
  59 }
  60
  61 static void
  62 WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
  63 {
  64         writereg(cs->hw.teles3.isac, offset, value);
  65 }
  66
  67 static void
  68 ReadISACfifo(struct IsdnCardState *cs, u_char *data, int size)
  69 {
  70         read_fifo(cs->hw.teles3.isacfifo, data, size);
  71 }
  72
  73 static void
  74 WriteISACfifo(struct IsdnCardState *cs, u_char *data, int size)
  75 {
  76         write_fifo(cs->hw.teles3.isacfifo, data, size);
  77 }
  78
  79 static u_char
  80 ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset)
  81 {
  82         return (readreg(cs->hw.teles3.hscx[hscx], offset));
  83 }
  84
  85 static void
  86 WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value)
  87 {
  88         writereg(cs->hw.teles3.hscx[hscx], offset, value);
  89 }
  90
  91 /*
  92  * fast interrupt HSCX stuff goes here
  93  */
  94
  95 #define READHSCX(cs, nr, reg) readreg(cs->hw.teles3.hscx[nr], reg)
  96 #define WRITEHSCX(cs, nr, reg, data) writereg(cs->hw.teles3.hscx[nr], reg, data)
  97 #define READHSCXFIFO(cs, nr, ptr, cnt) read_fifo(cs->hw.teles3.hscxfifo[nr], ptr, cnt)
  98 #define WRITEHSCXFIFO(cs, nr, ptr, cnt) write_fifo(cs->hw.teles3.hscxfifo[nr], ptr, cnt)
  99
 100 #include "hscx_irq.c"
 101
 102 static irqreturn_t
 103 teles3_interrupt(int intno, void *dev_id)
 104 {
 105 #define MAXCOUNT 5
 106         struct IsdnCardState *cs = dev_id;
 107         u_char val;
 108         u_long flags;
 109         int count = 0;
 110
 111         spin_lock_irqsave(&cs->lock, flags);
 112         val = readreg(cs->hw.teles3.hscx[1], HSCX_ISTA);
 113 Start_HSCX:
 114         if (val)
 115                 hscx_int_main(cs, val);
 116         val = readreg(cs->hw.teles3.isac, ISAC_ISTA);
 117 Start_ISAC:
 118         if (val)
 119                 isac_interrupt(cs, val);
 120         count++;
 121         val = readreg(cs->hw.teles3.hscx[1], HSCX_ISTA);
 122         if (val && count < MAXCOUNT) {
 123                 if (cs->debug & L1_DEB_HSCX)
 124                         debugl1(cs, "HSCX IntStat after IntRoutine");
 125                 goto Start_HSCX;
 126         }
 127         val = readreg(cs->hw.teles3.isac, ISAC_ISTA);
 128         if (val && count < MAXCOUNT) {
 129                 if (cs->debug & L1_DEB_ISAC)
 130                         debugl1(cs, "ISAC IntStat after IntRoutine");
 131                 goto Start_ISAC;
 132         }
 133         if (count >= MAXCOUNT)
 134                 printk(KERN_WARNING "Teles3: more than %d loops in teles3_interrupt\n", count);
 135         writereg(cs->hw.teles3.hscx[0], HSCX_MASK, 0xFF);
 136         writereg(cs->hw.teles3.hscx[1], HSCX_MASK, 0xFF);
 137         writereg(cs->hw.teles3.isac, ISAC_MASK, 0xFF);
 138         writereg(cs->hw.teles3.isac, ISAC_MASK, 0x0);
 139         writereg(cs->hw.teles3.hscx[0], HSCX_MASK, 0x0);
 140         writereg(cs->hw.teles3.hscx[1], HSCX_MASK, 0x0);
 141         spin_unlock_irqrestore(&cs->lock, flags);
 142         return IRQ_HANDLED;
 143 }
 144
 145 static inline void
 146 release_ioregs(struct IsdnCardState *cs, int mask)
 147 {
 148         if (mask & 1)
 149                 release_region(cs->hw.teles3.isac + 32, 32);
 150         if (mask & 2)
 151                 release_region(cs->hw.teles3.hscx[0] + 32, 32);
 152         if (mask & 4)
 153                 release_region(cs->hw.teles3.hscx[1] + 32, 32);
 154 }
 155
 156 static void
 157 release_io_teles3(struct IsdnCardState *cs)
 158 {
 159         if (cs->typ == ISDN_CTYPE_TELESPCMCIA) {
 160                 release_region(cs->hw.teles3.hscx[1], 96);
 161         } else {
 162                 if (cs->hw.teles3.cfg_reg) {
 163                         if (cs->typ == ISDN_CTYPE_COMPAQ_ISA) {
 164                                 release_region(cs->hw.teles3.cfg_reg, 1);
 165                         } else {
 166                                 release_region(cs->hw.teles3.cfg_reg, 8);
 167                         }
 168                 }
 169                 release_ioregs(cs, 0x7);
 170         }
 171 }
 172
 173 static int
 174 reset_teles3(struct IsdnCardState *cs)
 175 {
 176         u_char irqcfg;
 177
 178         if (cs->typ != ISDN_CTYPE_TELESPCMCIA) {
 179                 if ((cs->hw.teles3.cfg_reg) && (cs->typ != ISDN_CTYPE_COMPAQ_ISA)) {
 180                         switch (cs->irq) {
 181                         case 2:
 182                         case 9:
 183                                 irqcfg = 0x00;
 184                                 break;
 185                         case 3:
 186                                 irqcfg = 0x02;
 187                                 break;
 188                         case 4:
 189                                 irqcfg = 0x04;
 190                                 break;
 191                         case 5:
 192                                 irqcfg = 0x06;
 193                                 break;
 194                         case 10:
 195                                 irqcfg = 0x08;
 196                                 break;
 197                         case 11:
 198                                 irqcfg = 0x0A;
 199                                 break;
 200                         case 12:
 201                                 irqcfg = 0x0C;
 202                                 break;
 203                         case 15:
 204                                 irqcfg = 0x0E;
 205                                 break;
 206                         default:
 207                                 return (1);
 208                         }
 209                         byteout(cs->hw.teles3.cfg_reg + 4, irqcfg);
 210                         HZDELAY(HZ / 10 + 1);
 211                         byteout(cs->hw.teles3.cfg_reg + 4, irqcfg | 1);
 212                         HZDELAY(HZ / 10 + 1);
 213                 } else if (cs->typ == ISDN_CTYPE_COMPAQ_ISA) {
 214                         byteout(cs->hw.teles3.cfg_reg, 0xff);
 215                         HZDELAY(2);
 216                         byteout(cs->hw.teles3.cfg_reg, 0x00);
 217                         HZDELAY(2);
 218                 } else {
 219                         /* Reset off for 16.3 PnP , thanks to Georg Acher */
 220                         byteout(cs->hw.teles3.isac + 0x3c, 0);
 221                         HZDELAY(2);
 222                         byteout(cs->hw.teles3.isac + 0x3c, 1);
 223                         HZDELAY(2);
 224                 }
 225         }
 226         return (0);
 227 }
 228
 229 static int
 230 Teles_card_msg(struct IsdnCardState *cs, int mt, void *arg)
 231 {
 232         u_long flags;
 233
 234         switch (mt) {
 235         case CARD_RESET:
 236                 spin_lock_irqsave(&cs->lock, flags);
 237                 reset_teles3(cs);
 238                 spin_unlock_irqrestore(&cs->lock, flags);
 239                 return (0);
 240         case CARD_RELEASE:
 241                 release_io_teles3(cs);
 242                 return (0);
 243         case CARD_INIT:
 244                 spin_lock_irqsave(&cs->lock, flags);
 245                 inithscxisac(cs, 3);
 246                 spin_unlock_irqrestore(&cs->lock, flags);
 247                 return (0);
 248         case CARD_TEST:
 249                 return (0);
 250         }
 251         return (0);
 252 }
 253
 254 #ifdef __ISAPNP__
 255
 256 static struct isapnp_device_id teles_ids[] = {
 257         { ISAPNP_VENDOR('T', 'A', 'G'), ISAPNP_FUNCTION(0x2110),
 258           ISAPNP_VENDOR('T', 'A', 'G'), ISAPNP_FUNCTION(0x2110),
 259           (unsigned long) "Teles 16.3 PnP" },
 260         { ISAPNP_VENDOR('C', 'T', 'X'), ISAPNP_FUNCTION(0x0),
 261           ISAPNP_VENDOR('C', 'T', 'X'), ISAPNP_FUNCTION(0x0),
 262           (unsigned long) "Creatix 16.3 PnP" },
 263         { ISAPNP_VENDOR('C', 'P', 'Q'), ISAPNP_FUNCTION(0x1002),
 264           ISAPNP_VENDOR('C', 'P', 'Q'), ISAPNP_FUNCTION(0x1002),
 265           (unsigned long) "Compaq ISDN S0" },
 266         { 0, }
 267 };
 268
 269 static struct isapnp_device_id *ipid = &teles_ids[0];
 270 static struct pnp_card *pnp_c = NULL;
 271 #endif
 272
 273 int setup_teles3(struct IsdnCard *card)
 274 {
 275         u_char val;
 276         struct IsdnCardState *cs = card->cs;
 277         char tmp[64];
 278
 279         strcpy(tmp, teles3_revision);
 280         printk(KERN_INFO "HiSax: Teles IO driver Rev. %s\n", HiSax_getrev(tmp));
 281         if ((cs->typ != ISDN_CTYPE_16_3) && (cs->typ != ISDN_CTYPE_PNP)
 282             && (cs->typ != ISDN_CTYPE_TELESPCMCIA) && (cs->typ != ISDN_CTYPE_COMPAQ_ISA))
 283                 return (0);
 284
 285 #ifdef __ISAPNP__
 286         if (!card->para[1] && isapnp_present()) {
 287                 struct pnp_dev *pnp_d;
 288                 while (ipid->card_vendor) {
 289                         if ((pnp_c = pnp_find_card(ipid->card_vendor,
 290                                                    ipid->card_device, pnp_c))) {
 291                                 pnp_d = NULL;
 292                                 if ((pnp_d = pnp_find_dev(pnp_c,
 293                                                           ipid->vendor, ipid->function, pnp_d))) {
 294                                         int err;
 295
 296                                         printk(KERN_INFO "HiSax: %s detected\n",
 297                                                (char *)ipid->driver_data);
 298                                         pnp_disable_dev(pnp_d);
 299                                         err = pnp_activate_dev(pnp_d);
 300                                         if (err < 0) {
 301                                                 printk(KERN_WARNING "%s: pnp_activate_dev ret(%d)\n",
 302                                                        __func__, err);
 303                                                 return (0);
 304                                         }
 305                                         card->para[3] = pnp_port_start(pnp_d, 2);
 306                                         card->para[2] = pnp_port_start(pnp_d, 1);
 307                                         card->para[1] = pnp_port_start(pnp_d, 0);
 308                                         card->para[0] = pnp_irq(pnp_d, 0);
 309                                         if (!card->para[0] || !card->para[1] || !card->para[2]) {
 310                                                 printk(KERN_ERR "Teles PnP:some resources are missing %ld/%lx/%lx\n",
 311                                                        card->para[0], card->para[1], card->para[2]);
 312                                                 pnp_disable_dev(pnp_d);
 313                                                 return (0);
 314                                         }
 315                                         break;
 316                                 } else {
 317                                         printk(KERN_ERR "Teles PnP: PnP error card found, no device\n");
 318                                 }
 319                         }
 320                         ipid++;
 321                         pnp_c = NULL;
 322                 }
 323                 if (!ipid->card_vendor) {
 324                         printk(KERN_INFO "Teles PnP: no ISAPnP card found\n");
 325                         return (0);
 326                 }
 327         }
 328 #endif
 329         if (cs->typ == ISDN_CTYPE_16_3) {
 330                 cs->hw.teles3.cfg_reg = card->para[1];
 331                 switch (cs->hw.teles3.cfg_reg) {
 332                 case 0x180:
 333                 case 0x280:
 334                 case 0x380:
 335                         cs->hw.teles3.cfg_reg |= 0xc00;
 336                         break;
 337                 }
 338                 cs->hw.teles3.isac = cs->hw.teles3.cfg_reg - 0x420;
 339                 cs->hw.teles3.hscx[0] = cs->hw.teles3.cfg_reg - 0xc20;
 340                 cs->hw.teles3.hscx[1] = cs->hw.teles3.cfg_reg - 0x820;
 341         } else if (cs->typ == ISDN_CTYPE_TELESPCMCIA) {
 342                 cs->hw.teles3.cfg_reg = 0;
 343                 cs->hw.teles3.hscx[0] = card->para[1] - 0x20;
 344                 cs->hw.teles3.hscx[1] = card->para[1];
 345                 cs->hw.teles3.isac = card->para[1] + 0x20;
 346         } else if (cs->typ == ISDN_CTYPE_COMPAQ_ISA) {
 347                 cs->hw.teles3.cfg_reg = card->para[3];
 348                 cs->hw.teles3.isac = card->para[2] - 32;
 349                 cs->hw.teles3.hscx[0] = card->para[1] - 32;
 350                 cs->hw.teles3.hscx[1] = card->para[1];
 351         } else {        /* PNP */
 352                 cs->hw.teles3.cfg_reg = 0;
 353                 cs->hw.teles3.isac = card->para[1] - 32;
 354                 cs->hw.teles3.hscx[0] = card->para[2] - 32;
 355                 cs->hw.teles3.hscx[1] = card->para[2];
 356         }
 357         cs->irq = card->para[0];
 358         cs->hw.teles3.isacfifo = cs->hw.teles3.isac + 0x3e;
 359         cs->hw.teles3.hscxfifo[0] = cs->hw.teles3.hscx[0] + 0x3e;
 360         cs->hw.teles3.hscxfifo[1] = cs->hw.teles3.hscx[1] + 0x3e;
 361         if (cs->typ == ISDN_CTYPE_TELESPCMCIA) {
 362                 if (!request_region(cs->hw.teles3.hscx[1], 96, "HiSax Teles PCMCIA")) {
 363                         printk(KERN_WARNING
 364                                "HiSax: %s ports %x-%x already in use\n",
 365                                CardType[cs->typ],
 366                                cs->hw.teles3.hscx[1],
 367                                cs->hw.teles3.hscx[1] + 96);
 368                         return (0);
 369                 }
 370                 cs->irq_flags |= IRQF_SHARED; /* cardbus can share */
 371         } else {
 372                 if (cs->hw.teles3.cfg_reg) {
 373                         if (cs->typ == ISDN_CTYPE_COMPAQ_ISA) {
 374                                 if (!request_region(cs->hw.teles3.cfg_reg, 1, "teles3 cfg")) {
 375                                         printk(KERN_WARNING
 376                                                "HiSax: %s config port %x already in use\n",
 377                                                CardType[card->typ],
 378                                                cs->hw.teles3.cfg_reg);
 379                                         return (0);
 380                                 }
 381                         } else {
 382                                 if (!request_region(cs->hw.teles3.cfg_reg, 8, "teles3 cfg")) {
 383                                         printk(KERN_WARNING
 384                                                "HiSax: %s config port %x-%x already in use\n",
 385                                                CardType[card->typ],
 386                                                cs->hw.teles3.cfg_reg,
 387                                                cs->hw.teles3.cfg_reg + 8);
 388                                         return (0);
 389                                 }
 390                         }
 391                 }
 392                 if (!request_region(cs->hw.teles3.isac + 32, 32, "HiSax isac")) {
 393                         printk(KERN_WARNING
 394                                "HiSax: %s isac ports %x-%x already in use\n",
 395                                CardType[cs->typ],
 396                                cs->hw.teles3.isac + 32,
 397                                cs->hw.teles3.isac + 64);
 398                         if (cs->hw.teles3.cfg_reg) {
 399                                 if (cs->typ == ISDN_CTYPE_COMPAQ_ISA) {
 400                                         release_region(cs->hw.teles3.cfg_reg, 1);
 401                                 } else {
 402                                         release_region(cs->hw.teles3.cfg_reg, 8);
 403                                 }
 404                         }
 405                         return (0);
 406                 }
 407                 if (!request_region(cs->hw.teles3.hscx[0] + 32, 32, "HiSax hscx A")) {
 408                         printk(KERN_WARNING
 409                                "HiSax: %s hscx A ports %x-%x already in use\n",
 410                                CardType[cs->typ],
 411                                cs->hw.teles3.hscx[0] + 32,
 412                                cs->hw.teles3.hscx[0] + 64);
 413                         if (cs->hw.teles3.cfg_reg) {
 414                                 if (cs->typ == ISDN_CTYPE_COMPAQ_ISA) {
 415                                         release_region(cs->hw.teles3.cfg_reg, 1);
 416                                 } else {
 417                                         release_region(cs->hw.teles3.cfg_reg, 8);
 418                                 }
 419                         }
 420                         release_ioregs(cs, 1);
 421                         return (0);
 422                 }
 423                 if (!request_region(cs->hw.teles3.hscx[1] + 32, 32, "HiSax hscx B")) {
 424                         printk(KERN_WARNING
 425                                "HiSax: %s hscx B ports %x-%x already in use\n",
 426                                CardType[cs->typ],
 427                                cs->hw.teles3.hscx[1] + 32,
 428                                cs->hw.teles3.hscx[1] + 64);
 429                         if (cs->hw.teles3.cfg_reg) {
 430                                 if (cs->typ == ISDN_CTYPE_COMPAQ_ISA) {
 431                                         release_region(cs->hw.teles3.cfg_reg, 1);
 432                                 } else {
 433                                         release_region(cs->hw.teles3.cfg_reg, 8);
 434                                 }
 435                         }
 436                         release_ioregs(cs, 3);
 437                         return (0);
 438                 }
 439         }
 440         if ((cs->hw.teles3.cfg_reg) && (cs->typ != ISDN_CTYPE_COMPAQ_ISA)) {
 441                 if ((val = bytein(cs->hw.teles3.cfg_reg + 0)) != 0x51) {
 442                         printk(KERN_WARNING "Teles: 16.3 Byte at %x is %x\n",
 443                                cs->hw.teles3.cfg_reg + 0, val);
 444                         release_io_teles3(cs);
 445                         return (0);
 446                 }
 447                 if ((val = bytein(cs->hw.teles3.cfg_reg + 1)) != 0x93) {
 448                         printk(KERN_WARNING "Teles: 16.3 Byte at %x is %x\n",
 449                                cs->hw.teles3.cfg_reg + 1, val);
 450                         release_io_teles3(cs);
 451                         return (0);
 452                 }
 453                 val = bytein(cs->hw.teles3.cfg_reg + 2);/* 0x1e=without AB
 454                                                          * 0x1f=with AB
 455                                                          * 0x1c 16.3 ???
 456                                                          * 0x39 16.3 1.1
 457                                                          * 0x38 16.3 1.3
 458                                                          * 0x46 16.3 with AB + Video (Teles-Vision)
 459                                                          */
 460                 if (val != 0x46 && val != 0x39 && val != 0x38 && val != 0x1c && val != 0x1e && val != 0x1f) {
 461                         printk(KERN_WARNING "Teles: 16.3 Byte at %x is %x\n",
 462                                cs->hw.teles3.cfg_reg + 2, val);
 463                         release_io_teles3(cs);
 464                         return (0);
 465                 }
 466         }
 467         printk(KERN_INFO
 468                "HiSax: %s config irq:%d isac:0x%X  cfg:0x%X\n",
 469                CardType[cs->typ], cs->irq,
 470                cs->hw.teles3.isac + 32, cs->hw.teles3.cfg_reg);
 471         printk(KERN_INFO
 472                "HiSax: hscx A:0x%X  hscx B:0x%X\n",
 473                cs->hw.teles3.hscx[0] + 32, cs->hw.teles3.hscx[1] + 32);
 474
 475         setup_isac(cs);
 476         if (reset_teles3(cs)) {
 477                 printk(KERN_WARNING "Teles3: wrong IRQ\n");
 478                 release_io_teles3(cs);
 479                 return (0);
 480         }
 481         cs->readisac = &ReadISAC;
 482         cs->writeisac = &WriteISAC;
 483         cs->readisacfifo = &ReadISACfifo;
 484         cs->writeisacfifo = &WriteISACfifo;
 485         cs->BC_Read_Reg = &ReadHSCX;
 486         cs->BC_Write_Reg = &WriteHSCX;
 487         cs->BC_Send_Data = &hscx_fill_fifo;
 488         cs->cardmsg = &Teles_card_msg;
 489         cs->irq_func = &teles3_interrupt;
 490         ISACVersion(cs, "Teles3:");
 491         if (HscxVersion(cs, "Teles3:")) {
 492                 printk(KERN_WARNING
 493                        "Teles3: wrong HSCX versions check IO address\n");
 494                 release_io_teles3(cs);
 495                 return (0);
 496         }
 497         return (1);
 498 }