ata-all.c revision 44566
1/*- 2 * Copyright (c) 1998,1999 S�ren Schmidt 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer, 10 * without modification, immediately at the beginning of the file. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. The name of the author may not be used to endorse or promote products 15 * derived from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 * $Id: ata-all.c,v 1.3 1999/03/05 09:43:30 sos Exp $ 29 */ 30 31#include "ata.h" 32#if NATA > 0 33#include "isa.h" 34#include "pci.h" 35#include "atadisk.h" 36#include <sys/param.h> 37#include <sys/systm.h> 38#include <sys/kernel.h> 39#include <sys/interrupt.h> 40#include <sys/conf.h> 41#include <sys/buf.h> 42#include <sys/malloc.h> 43#include <sys/devicestat.h> 44#include <machine/clock.h> 45#include <pci/pcivar.h> 46#include <pci/pcireg.h> 47#include <i386/isa/icu.h> 48#include <i386/isa/isa.h> 49#include <i386/isa/isa_device.h> 50#include <dev/ata/ata-all.h> 51#include <dev/ata/ata-disk.h> 52#include <dev/ata/atapi-all.h> 53 54/* misc defines */ 55#define UNIT(dev) (dev>>3 & 0x1f) /* assume 8 minor # per unit */ 56 57/* prototypes */ 58#if NISA > 0 59static int32_t ata_isaprobe(struct isa_device *); 60static int32_t ata_isaattach(struct isa_device *); 61#endif 62#if NPCI > 0 63static const char *ata_pciprobe(pcici_t, pcidi_t); 64static void ata_pciattach(pcici_t, int32_t); 65static void promise_intr(int32_t); 66#endif 67static int32_t ata_probe(int32_t, int32_t, int32_t *); 68static void ataintr(int32_t); 69 70static int32_t atanlun = 0, sysctrl = 0; 71struct ata_softc *atadevices[MAXATA]; 72struct isa_driver atadriver = { ata_isaprobe, ata_isaattach, "ata" }; 73 74#if NISA > 0 75static int32_t 76ata_isaprobe(struct isa_device *devp) 77{ 78 int32_t ctlr, res; 79 80 for (ctlr = 0; ctlr < atanlun; ctlr++) { 81 if (atadevices[ctlr]->ioaddr == devp->id_iobase) { 82 printf("ata-isa%d: already registered as ata%d\n", 83 devp->id_unit, ctlr); 84 return 0; 85 } 86 } 87 res=ata_probe(devp->id_iobase, devp->id_iobase+ATA_ALTPORT, &devp->id_unit); 88 if (res) 89 devp->id_intr = (inthand2_t *)ataintr; 90 return res; 91} 92 93static int32_t 94ata_isaattach(struct isa_device *devp) 95{ 96 return 1; 97} 98#endif 99 100#if NPCI > 0 101static u_long ata_pcicount; 102static struct pci_device ata_pcidevice = { 103 "ata-pci", ata_pciprobe, ata_pciattach, &ata_pcicount, 0 104}; 105 106DATA_SET(pcidevice_set, ata_pcidevice); 107 108static const char * 109ata_pciprobe(pcici_t tag, pcidi_t type) 110{ 111 u_int32_t data; 112 113 data = pci_conf_read(tag, PCI_CLASS_REG); 114 if ((data & PCI_CLASS_MASK) == PCI_CLASS_MASS_STORAGE && 115 ((data & PCI_SUBCLASS_MASK) == 0x00010000 || 116 ((data & PCI_SUBCLASS_MASK) == 0x00040000))) { 117 switch (type) { 118 case 0x71118086: 119 return "Intel PIIX4 IDE controller"; 120 case 0x70108086: 121 return "Intel PIIX3 IDE controller"; 122 case 0x12308086: 123 return "Intel PIIX IDE controller"; 124 case 0x4d33105a: 125 return "Promise Ultra/33 IDE controller"; 126 case 0x05711106: 127 return "VIA Apollo IDE controller"; 128 case 0x01021078: 129 return "Cyrix 5530 IDE controller"; 130 case 0x522910b9: 131 return "Acer Aladdin IV/V IDE controller"; 132 default: 133 return "Unknown PCI IDE controller"; 134 } 135 } 136 return NULL; 137} 138 139static void 140ata_pciattach(pcici_t tag, int32_t unit) 141{ 142 pcidi_t type, class, cmd; 143 int32_t iobase_1, iobase_2, altiobase_1, altiobase_2, irq1, irq2; 144 int32_t lun; 145 146 /* set up vendor-specific stuff */ 147 type = pci_conf_read(tag, PCI_ID_REG); 148 class = pci_conf_read(tag, PCI_CLASS_REG); 149 cmd = pci_conf_read(tag, PCI_COMMAND_STATUS_REG); 150 151#ifdef ATA_DEBUG 152 printf("ata: type=%08x class=%08x cmd=%08x\n", type, class, cmd); 153#endif 154 155 switch (type) { 156 case 0x71118086: 157 case 0x70108086: 158 case 0x12308086: /* Intel PIIX, PIIX3, PIIX4 */ 159 break; 160 161 case 0x05711106: /* VIA Apollo chipset family */ 162 break; 163 164 case 0x4d33105a: /* Promise controllers */ 165 break; 166 167 case 0x01021078: /* Cyrix 5530 */ 168 break; 169 170 case 0x522910B9: /* Acer Aladdin IV/V (M5229) */ 171 break; 172 default: 173 /* everybody else */ 174 break; 175 } 176 177 if (type == 0x4d33105a) { /* the Promise is special */ 178 iobase_1 = pci_conf_read(tag, 0x10) & 0xfffc; 179 altiobase_1 = pci_conf_read(tag, 0x14) & 0xfffc; 180 iobase_2 = pci_conf_read(tag, 0x18) & 0xfffc; 181 altiobase_2 = pci_conf_read(tag, 0x1c) & 0xfffc; 182 irq1 = irq2 = pci_conf_read(tag, PCI_INTERRUPT_REG) & 0xff; 183 sysctrl = (pci_conf_read(tag, 0x20) & 0xfffc) + 0x1c; 184 } 185 else { 186 if ((class & 0x100) == 0) { 187 iobase_1 = IO_WD1; 188 altiobase_1 = iobase_1 + ATA_ALTPORT; 189 irq1 = 14; 190 } 191 else { 192 iobase_1 = pci_conf_read(tag, 0x10) & 0xfffc; 193 altiobase_1 = pci_conf_read(tag, 0x14) & 0xfffc; 194 irq1 = pci_conf_read(tag, PCI_INTERRUPT_REG) & 0xff; 195 } 196 if ((class & 0x400) == 0) { 197 iobase_2 = IO_WD2; 198 altiobase_2 = iobase_2 + ATA_ALTPORT; 199 irq2 = 15; 200 } 201 else { 202 iobase_2 = pci_conf_read(tag, 0x18) & 0xfffc; 203 altiobase_2 = pci_conf_read(tag, 0x1c) & 0xfffc; 204 irq2 = pci_conf_read(tag, PCI_INTERRUPT_REG) & 0xff; 205 } 206 } 207 208 /* now probe the addresse found for "real" ATA/ATAPI hardware */ 209 if (ata_probe(iobase_1, altiobase_1, &lun)) { 210 if (iobase_1 == IO_WD1) 211 register_intr(irq1, 0, 0, (inthand2_t *)ataintr, &bio_imask, lun); 212 else { 213 if (sysctrl) 214 pci_map_int(tag, (inthand2_t *)promise_intr, 215 (void *)lun, &bio_imask); 216 else 217 pci_map_int(tag, (inthand2_t *)ataintr, (void *)lun,&bio_imask); 218 } 219 printf("ata%d at 0x%04x irq %d on ata-pci%d\n", 220 lun, iobase_1, irq1, unit); 221 } 222 if (ata_probe(iobase_2, altiobase_2, &lun)) { 223 if (iobase_2 == IO_WD2) 224 register_intr(irq2, 0, 0, (inthand2_t *)ataintr, &bio_imask, lun); 225 else { 226 if (!sysctrl) 227 pci_map_int(tag, (inthand2_t *)ataintr, (void *)lun,&bio_imask); 228 } 229 printf("ata%d at 0x%04x irq %d on ata-pci%d\n", 230 lun, iobase_2, irq2, unit); 231 } 232} 233 234static void 235promise_intr(int32_t unit) 236{ 237 if (inl(sysctrl) & 0x00000400) 238 ataintr(unit); 239 if (inl(sysctrl) & 0x00004000) 240 ataintr(unit+1); 241} 242#endif 243 244static int32_t 245ata_probe(int32_t ioaddr, int32_t altioaddr, int32_t *unit) 246{ 247 struct ata_softc *scp = atadevices[atanlun]; 248 int32_t mask = 0; 249 int32_t timeout; 250 int32_t lun = atanlun; 251 u_int8_t status0, status1; 252 253#ifdef ATA_STATIC_ID 254 atanlun++; 255#endif 256 if (lun > MAXATA) { 257 printf("ata: unit of of range(%d)\n", lun); 258 return 0; 259 } 260 if (scp) { 261 printf("ata%d: unit already attached\n", lun); 262 return 0; 263 } 264 scp = malloc(sizeof(struct ata_softc), M_DEVBUF, M_NOWAIT); 265 if (scp == NULL) { 266 printf("ata%d: failed to allocate driver storage\n", lun); 267 return 0; 268 } 269 bzero(scp, sizeof(struct ata_softc)); 270 271 scp->unit = lun; 272 scp->ioaddr = ioaddr; 273 scp->altioaddr = altioaddr; 274 scp->active = ATA_IDLE; 275 276#ifdef ATA_DEBUG 277 printf("ata%d: iobase=0x%04x altiobase=0x%04x\n", 278 scp->unit, scp->ioaddr, scp->altioaddr); 279#endif 280 281 /* do we have any signs of ATA/ATAPI HW being present ? */ 282 outb(scp->ioaddr + ATA_DRIVE, ATA_D_IBM | ATA_MASTER); 283 DELAY(1); 284 status0 = inb(scp->ioaddr + ATA_STATUS); 285 outb(scp->ioaddr + ATA_DRIVE, ATA_D_IBM | ATA_SLAVE); 286 DELAY(1); 287 status1 = inb(scp->ioaddr + ATA_STATUS); 288 if ((status0 & 0xf8) != 0xf8) 289 mask |= 0x01; 290 if ((status1 & 0xf8) != 0xf8) 291 mask |= 0x02; 292#ifdef ATA_DEBUG 293 printf("ata%d: mask=%02x status0=%02x status1=%02x\n", 294 scp->unit, mask, status0, status1); 295#endif 296 if (!mask) { 297 free(scp, M_DEVBUF); 298 return 0; 299 } 300 /* assert reset for devices and wait for completition */ 301 outb(scp->ioaddr + ATA_DRIVE, ATA_D_IBM | ATA_MASTER); 302 DELAY(1); 303 outb(scp->altioaddr, ATA_A_IDS | ATA_A_RESET); 304 DELAY(1000); 305 outb(scp->altioaddr, ATA_A_IDS); 306 DELAY(1000); 307 inb(scp->ioaddr + ATA_ERROR); 308 outb(scp->altioaddr, ATA_A_4BIT); 309 DELAY(1); 310 311 /* wait for BUSY to go inactive */ 312 for (timeout = 0; timeout < 30000*10; timeout++) { 313 outb(scp->ioaddr + ATA_DRIVE, ATA_D_IBM | ATA_MASTER); 314 DELAY(1); 315 status0 = inb(scp->ioaddr + ATA_STATUS); 316 outb(scp->ioaddr + ATA_DRIVE, ATA_D_IBM | ATA_SLAVE); 317 DELAY(1); 318 status1 = inb(scp->ioaddr + ATA_STATUS); 319 if (mask == 0x01) /* wait for master only */ 320 if (!(status0 & ATA_S_BSY)) 321 break; 322 if (mask == 0x02) /* wait for slave only */ 323 if (!(status1 & ATA_S_BSY)) 324 break; 325 if (mask == 0x03) /* wait for both master & slave */ 326 if (!(status0 & ATA_S_BSY) && !(status1 & ATA_S_BSY)) 327 break; 328 DELAY(100); 329 } 330 if (status0 & ATA_S_BSY) 331 mask &= ~0x01; 332 if (status1 & ATA_S_BSY) 333 mask &= ~0x02; 334#ifdef ATA_DEBUG 335 printf("ata%d: mask=%02x status0=%02x status1=%02x\n", 336 scp->unit, mask, status0, status1); 337#endif 338 if (!mask) { 339 free(scp, M_DEVBUF); 340 return 0; 341 } 342 /* 343 * OK, we have at least one device on the chain, 344 * check for ATAPI signatures, if none check if its 345 * a good old ATA device. 346 */ 347 348 outb(scp->ioaddr + ATA_DRIVE, (ATA_D_IBM | ATA_MASTER)); 349 DELAY(1); 350 if (inb(scp->ioaddr + ATA_CYL_LSB) == ATAPI_MAGIC_LSB && 351 inb(scp->ioaddr + ATA_CYL_MSB) == ATAPI_MAGIC_MSB) { 352 scp->devices |= ATA_ATAPI_MASTER; 353 } 354 outb(scp->ioaddr + ATA_DRIVE, (ATA_D_IBM | ATA_SLAVE)); 355 DELAY(1); 356 if (inb(scp->ioaddr + ATA_CYL_LSB) == ATAPI_MAGIC_LSB && 357 inb(scp->ioaddr + ATA_CYL_MSB) == ATAPI_MAGIC_MSB) { 358 scp->devices |= ATA_ATAPI_SLAVE; 359 } 360 if (status0 != 0x00 && !(scp->devices & ATA_ATAPI_MASTER)) { 361 outb(scp->ioaddr + ATA_DRIVE, (ATA_D_IBM | ATA_MASTER)); 362 DELAY(1); 363 outb(scp->ioaddr + ATA_ERROR, 0x58); 364 outb(scp->ioaddr + ATA_CYL_LSB, 0xa5); 365 if (inb(scp->ioaddr + ATA_ERROR) != 0x58 && 366 inb(scp->ioaddr + ATA_CYL_LSB) == 0xa5) { 367 scp->devices |= ATA_ATA_MASTER; 368 } 369 } 370 if (status1 != 0x00 && !(scp->devices & ATA_ATAPI_SLAVE)) { 371 outb(scp->ioaddr + ATA_DRIVE, (ATA_D_IBM | ATA_SLAVE)); 372 DELAY(1); 373 outb(scp->ioaddr + ATA_ERROR, 0x58); 374 outb(scp->ioaddr + ATA_CYL_LSB, 0xa5); 375 if (inb(scp->ioaddr + ATA_ERROR) != 0x58 && 376 inb(scp->ioaddr + ATA_CYL_LSB) == 0xa5) { 377 scp->devices |= ATA_ATA_SLAVE; 378 } 379 } 380#ifdef ATA_DEBUG 381 printf("ata%d: devices = 0x%x\n", scp->unit, scp->devices); 382#endif 383 if (!(scp->devices & (ATA_ATA_MASTER|ATA_ATAPI_MASTER))) 384 scp->flags |= ATA_F_SLAVE_ONLY; 385 if (!scp->devices) { 386 free(scp, M_DEVBUF); 387 return 0; 388 } 389 bufq_init(&scp->ata_queue); 390 TAILQ_INIT(&scp->atapi_queue); 391 *unit = scp->unit; 392 atadevices[scp->unit] = scp; 393#ifndef ATA_STATIC_ID 394 atanlun++; 395#endif 396 return ATA_IOSIZE; 397} 398 399static void 400ataintr(int32_t unit) 401{ 402 struct ata_softc *scp; 403 struct atapi_request *atapi_request; 404 struct buf *ata_request; 405 406 static int32_t intcount = 0; 407 408#ifdef ATA_DEBUG 409 printf("ataintr: entered unit=%d\n", unit); 410#endif 411 if (unit < 0 || unit > atanlun) { 412 printf("ataintr: unit %d unusable\n", unit); 413 return; 414 } 415 416 scp = atadevices[unit]; 417 418 /* find & call the responsible driver to process this interrupt */ 419 switch (scp->active) { 420#if NATADISK > 0 421 case ATA_ACTIVE_ATA: 422 if ((ata_request = bufq_first(&scp->ata_queue))) 423 if (ad_interrupt(ata_request) == ATA_OP_CONTINUES) 424 return; 425 break; 426#endif 427 case ATA_ACTIVE_ATAPI: 428 if ((atapi_request = TAILQ_FIRST(&scp->atapi_queue))) 429 if (atapi_interrupt(atapi_request) == ATA_OP_CONTINUES) 430 return; 431 break; 432 433 case ATA_WAIT_INTR: 434 wakeup((caddr_t)scp); 435 break; 436 437 case ATA_IGNORE_INTR: 438 break; 439 440 default: 441 case ATA_IDLE: 442 if (intcount++ < 5) 443 printf("ata%d: unwanted interrupt\n", unit); 444 return; 445 } 446 scp->active = ATA_IDLE; 447 ata_start(scp); 448} 449 450void 451ata_start(struct ata_softc *scp) 452{ 453 struct buf *ata_request; 454 struct atapi_request *atapi_request; 455 456#ifdef ATA_DEBUG 457 printf("ata_start: entered\n"); 458#endif 459 if (scp->active) { 460 printf("ata: unwanted ata_start\n"); 461 return; 462 } 463 464 /* find & call the responsible driver if anything on ATA queue */ 465 if ((ata_request = bufq_first(&scp->ata_queue))) { 466 scp->active = ATA_ACTIVE_ATA; 467 ad_transfer(ata_request); 468 } 469 470 /* find & call the responsible driver if anything on ATAPI queue */ 471 if ((atapi_request = TAILQ_FIRST(&scp->atapi_queue))) { 472 scp->active = ATA_ACTIVE_ATAPI; 473 atapi_transfer(atapi_request); 474 } 475} 476 477int32_t 478ata_wait(struct ata_softc *scp, u_int8_t mask) 479{ 480 u_int8_t status; 481 u_int32_t timeout = 0; 482 483 while (timeout++ <= 50000) { /* timeout 5 secs */ 484 status = inb(scp->ioaddr + ATA_STATUS); 485 if ((status == 0xff) && (scp->flags & ATA_F_SLAVE_ONLY)) { 486 outb(scp->ioaddr + ATA_DRIVE, ATA_D_IBM | ATA_SLAVE); 487 DELAY(1); 488 status = inb(scp->ioaddr + ATA_STATUS); 489 } 490 if (status == 0xff) 491 return -1; 492 scp->status = status; 493 if (!(status & ATA_S_BSY)) { 494 if (status & ATA_S_ERROR) 495 scp->error = inb(scp->ioaddr + ATA_ERROR); 496 if ((status & mask) == mask) 497 return (status & ATA_S_ERROR); 498 } 499 if (timeout > 1000) 500 DELAY(1000); 501 else 502 DELAY(10); 503 } 504 return -1; 505} 506 507int32_t 508ata_command(struct ata_softc *scp, int32_t device, u_int32_t command, 509 u_int32_t cylinder, u_int32_t head, u_int32_t sector, 510 u_int32_t count, int32_t flags) 511{ 512 /* ready to issue command ? */ 513 if (ata_wait(scp, 0) < 0) { 514 printf("ata_command: timeout waiting to give command"); 515 return -1; 516 } 517 outb(scp->ioaddr + ATA_DRIVE, ATA_D_IBM | device | head); 518 outb(scp->ioaddr + ATA_PRECOMP, 0); /* no precompensation */ 519 outb(scp->ioaddr + ATA_CYL_LSB, cylinder); 520 outb(scp->ioaddr + ATA_CYL_MSB, cylinder >> 8); 521 outb(scp->ioaddr + ATA_SECTOR, sector); 522 outb(scp->ioaddr + ATA_COUNT, count); 523 524 if (scp->active && flags != ATA_IMMEDIATE) 525 printf("DANGER active=%d\n", scp->active); 526 527 switch (flags) { 528 case ATA_WAIT_INTR: 529 scp->active = ATA_WAIT_INTR; 530 outb(scp->ioaddr + ATA_CMD, command); 531 if (tsleep((caddr_t)scp, PRIBIO, "atacmd", 500)) { 532 printf("ata_command: timeout waiting for interrupt"); 533 scp->active = ATA_IDLE; 534 return -1; 535 } 536 break; 537 538 case ATA_IGNORE_INTR: 539 scp->active = ATA_IGNORE_INTR; 540 outb(scp->ioaddr + ATA_CMD, command); 541 break; 542 543 case ATA_IMMEDIATE: 544 default: 545 outb(scp->ioaddr + ATA_CMD, command); 546 break; 547 } 548 return 0; 549} 550 551void 552bswap(int8_t *buf, int32_t len) 553{ 554 u_int16_t *p = (u_int16_t*)(buf + len); 555 556 while (--p >= (u_int16_t*)buf) 557 *p = ntohs(*p); 558} 559 560void 561btrim(int8_t *buf, int32_t len) 562{ 563 int8_t *p; 564 565 for (p = buf; p < buf+len; ++p) 566 if (!*p) 567 *p = ' '; 568 for (p = buf + len - 1; p >= buf && *p == ' '; --p) 569 *p = 0; 570} 571 572void 573bpack(int8_t *src, int8_t *dst, int32_t len) 574{ 575 int32_t i, j, blank; 576 577 for (i = j = blank = 0 ; i < len-1; i++) { 578 if (blank && src[i] == ' ') continue; 579 if (blank && src[i] != ' ') { 580 dst[j++] = src[i]; 581 blank = 0; 582 continue; 583 } 584 if (src[i] == ' ') 585 blank = 1; 586 dst[j++] = src[i]; 587 } 588 dst[j] = 0x00; 589} 590#endif 591