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 23static 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 28static inline u_char 29readreg(unsigned int adr, u_char off) 30{ 31 return (bytein(adr + off)); 32} 33 34static inline void 35writereg(unsigned int adr, u_char off, u_char data) 36{ 37 byteout(adr + off, data); 38} 39 40 41static inline void 42read_fifo(unsigned int adr, u_char *data, int size) 43{ 44 insb(adr, data, size); 45} 46 47static void 48write_fifo(unsigned int adr, u_char *data, int size) 49{ 50 outsb(adr, data, size); 51} 52 53/* Interface functions */ 54 55static u_char 56ReadISAC(struct IsdnCardState *cs, u_char offset) 57{ 58 return (readreg(cs->hw.teles3.isac, offset)); 59} 60 61static void 62WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value) 63{ 64 writereg(cs->hw.teles3.isac, offset, value); 65} 66 67static void 68ReadISACfifo(struct IsdnCardState *cs, u_char *data, int size) 69{ 70 read_fifo(cs->hw.teles3.isacfifo, data, size); 71} 72 73static void 74WriteISACfifo(struct IsdnCardState *cs, u_char *data, int size) 75{ 76 write_fifo(cs->hw.teles3.isacfifo, data, size); 77} 78 79static u_char 80ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset) 81{ 82 return (readreg(cs->hw.teles3.hscx[hscx], offset)); 83} 84 85static void 86WriteHSCX(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 102static irqreturn_t 103teles3_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); 113Start_HSCX: 114 if (val) 115 hscx_int_main(cs, val); 116 val = readreg(cs->hw.teles3.isac, ISAC_ISTA); 117Start_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 145static inline void 146release_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 156static void 157release_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 173static int 174reset_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 229static int 230Teles_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 256static 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 269static struct isapnp_device_id *ipid = &teles_ids[0]; 270static struct pnp_card *pnp_c = NULL; 271#endif 272 273int 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} 499