ide-probe.c revision 81ca691981da718727281238b435dcf1528d2fda
1/* 2 * linux/drivers/ide/ide-probe.c Version 1.11 Mar 05, 2003 3 * 4 * Copyright (C) 1994-1998 Linus Torvalds & authors (see below) 5 */ 6 7/* 8 * Mostly written by Mark Lord <mlord@pobox.com> 9 * and Gadi Oxman <gadio@netvision.net.il> 10 * and Andre Hedrick <andre@linux-ide.org> 11 * 12 * See linux/MAINTAINERS for address of current maintainer. 13 * 14 * This is the IDE probe module, as evolved from hd.c and ide.c. 15 * 16 * -- increase WAIT_PIDENTIFY to avoid CD-ROM locking at boot 17 * by Andrea Arcangeli 18 */ 19 20#include <linux/module.h> 21#include <linux/types.h> 22#include <linux/string.h> 23#include <linux/kernel.h> 24#include <linux/timer.h> 25#include <linux/mm.h> 26#include <linux/interrupt.h> 27#include <linux/major.h> 28#include <linux/errno.h> 29#include <linux/genhd.h> 30#include <linux/slab.h> 31#include <linux/delay.h> 32#include <linux/ide.h> 33#include <linux/spinlock.h> 34#include <linux/kmod.h> 35#include <linux/pci.h> 36#include <linux/scatterlist.h> 37 38#include <asm/byteorder.h> 39#include <asm/irq.h> 40#include <asm/uaccess.h> 41#include <asm/io.h> 42 43/** 44 * generic_id - add a generic drive id 45 * @drive: drive to make an ID block for 46 * 47 * Add a fake id field to the drive we are passed. This allows 48 * use to skip a ton of NULL checks (which people always miss) 49 * and make drive properties unconditional outside of this file 50 */ 51 52static void generic_id(ide_drive_t *drive) 53{ 54 drive->id->cyls = drive->cyl; 55 drive->id->heads = drive->head; 56 drive->id->sectors = drive->sect; 57 drive->id->cur_cyls = drive->cyl; 58 drive->id->cur_heads = drive->head; 59 drive->id->cur_sectors = drive->sect; 60} 61 62static void ide_disk_init_chs(ide_drive_t *drive) 63{ 64 struct hd_driveid *id = drive->id; 65 66 /* Extract geometry if we did not already have one for the drive */ 67 if (!drive->cyl || !drive->head || !drive->sect) { 68 drive->cyl = drive->bios_cyl = id->cyls; 69 drive->head = drive->bios_head = id->heads; 70 drive->sect = drive->bios_sect = id->sectors; 71 } 72 73 /* Handle logical geometry translation by the drive */ 74 if ((id->field_valid & 1) && id->cur_cyls && 75 id->cur_heads && (id->cur_heads <= 16) && id->cur_sectors) { 76 drive->cyl = id->cur_cyls; 77 drive->head = id->cur_heads; 78 drive->sect = id->cur_sectors; 79 } 80 81 /* Use physical geometry if what we have still makes no sense */ 82 if (drive->head > 16 && id->heads && id->heads <= 16) { 83 drive->cyl = id->cyls; 84 drive->head = id->heads; 85 drive->sect = id->sectors; 86 } 87} 88 89static void ide_disk_init_mult_count(ide_drive_t *drive) 90{ 91 struct hd_driveid *id = drive->id; 92 93 drive->mult_count = 0; 94 if (id->max_multsect) { 95#ifdef CONFIG_IDEDISK_MULTI_MODE 96 id->multsect = ((id->max_multsect/2) > 1) ? id->max_multsect : 0; 97 id->multsect_valid = id->multsect ? 1 : 0; 98 drive->mult_req = id->multsect_valid ? id->max_multsect : 0; 99 drive->special.b.set_multmode = drive->mult_req ? 1 : 0; 100#else /* original, pre IDE-NFG, per request of AC */ 101 drive->mult_req = 0; 102 if (drive->mult_req > id->max_multsect) 103 drive->mult_req = id->max_multsect; 104 if (drive->mult_req || ((id->multsect_valid & 1) && id->multsect)) 105 drive->special.b.set_multmode = 1; 106#endif 107 } 108} 109 110/** 111 * do_identify - identify a drive 112 * @drive: drive to identify 113 * @cmd: command used 114 * 115 * Called when we have issued a drive identify command to 116 * read and parse the results. This function is run with 117 * interrupts disabled. 118 */ 119 120static inline void do_identify (ide_drive_t *drive, u8 cmd) 121{ 122 ide_hwif_t *hwif = HWIF(drive); 123 int bswap = 1; 124 struct hd_driveid *id; 125 126 id = drive->id; 127 /* read 512 bytes of id info */ 128 hwif->ata_input_data(drive, id, SECTOR_WORDS); 129 130 drive->id_read = 1; 131 local_irq_enable(); 132 ide_fix_driveid(id); 133 134#if defined (CONFIG_SCSI_EATA_PIO) || defined (CONFIG_SCSI_EATA) 135 /* 136 * EATA SCSI controllers do a hardware ATA emulation: 137 * Ignore them if there is a driver for them available. 138 */ 139 if ((id->model[0] == 'P' && id->model[1] == 'M') || 140 (id->model[0] == 'S' && id->model[1] == 'K')) { 141 printk("%s: EATA SCSI HBA %.10s\n", drive->name, id->model); 142 goto err_misc; 143 } 144#endif /* CONFIG_SCSI_EATA || CONFIG_SCSI_EATA_PIO */ 145 146 /* 147 * WIN_IDENTIFY returns little-endian info, 148 * WIN_PIDENTIFY *usually* returns little-endian info. 149 */ 150 if (cmd == WIN_PIDENTIFY) { 151 if ((id->model[0] == 'N' && id->model[1] == 'E') /* NEC */ 152 || (id->model[0] == 'F' && id->model[1] == 'X') /* Mitsumi */ 153 || (id->model[0] == 'P' && id->model[1] == 'i'))/* Pioneer */ 154 /* Vertos drives may still be weird */ 155 bswap ^= 1; 156 } 157 ide_fixstring(id->model, sizeof(id->model), bswap); 158 ide_fixstring(id->fw_rev, sizeof(id->fw_rev), bswap); 159 ide_fixstring(id->serial_no, sizeof(id->serial_no), bswap); 160 161 /* we depend on this a lot! */ 162 id->model[sizeof(id->model)-1] = '\0'; 163 164 if (strstr(id->model, "E X A B Y T E N E S T")) 165 goto err_misc; 166 167 printk("%s: %s, ", drive->name, id->model); 168 drive->present = 1; 169 drive->dead = 0; 170 171 /* 172 * Check for an ATAPI device 173 */ 174 if (cmd == WIN_PIDENTIFY) { 175 u8 type = (id->config >> 8) & 0x1f; 176 printk("ATAPI "); 177 switch (type) { 178 case ide_floppy: 179 if (!strstr(id->model, "CD-ROM")) { 180 if (!strstr(id->model, "oppy") && 181 !strstr(id->model, "poyp") && 182 !strstr(id->model, "ZIP")) 183 printk("cdrom or floppy?, assuming "); 184 if (drive->media != ide_cdrom) { 185 printk ("FLOPPY"); 186 drive->removable = 1; 187 break; 188 } 189 } 190 /* Early cdrom models used zero */ 191 type = ide_cdrom; 192 case ide_cdrom: 193 drive->removable = 1; 194#ifdef CONFIG_PPC 195 /* kludge for Apple PowerBook internal zip */ 196 if (!strstr(id->model, "CD-ROM") && 197 strstr(id->model, "ZIP")) { 198 printk ("FLOPPY"); 199 type = ide_floppy; 200 break; 201 } 202#endif 203 printk ("CD/DVD-ROM"); 204 break; 205 case ide_tape: 206 printk ("TAPE"); 207 break; 208 case ide_optical: 209 printk ("OPTICAL"); 210 drive->removable = 1; 211 break; 212 default: 213 printk("UNKNOWN (type %d)", type); 214 break; 215 } 216 printk (" drive\n"); 217 drive->media = type; 218 /* an ATAPI device ignores DRDY */ 219 drive->ready_stat = 0; 220 return; 221 } 222 223 /* 224 * Not an ATAPI device: looks like a "regular" hard disk 225 */ 226 227 /* 228 * 0x848a = CompactFlash device 229 * These are *not* removable in Linux definition of the term 230 */ 231 232 if ((id->config != 0x848a) && (id->config & (1<<7))) 233 drive->removable = 1; 234 235 drive->media = ide_disk; 236 printk("%s DISK drive\n", (id->config == 0x848a) ? "CFA" : "ATA" ); 237 238 return; 239 240err_misc: 241 kfree(id); 242 drive->present = 0; 243 return; 244} 245 246/** 247 * actual_try_to_identify - send ata/atapi identify 248 * @drive: drive to identify 249 * @cmd: command to use 250 * 251 * try_to_identify() sends an ATA(PI) IDENTIFY request to a drive 252 * and waits for a response. It also monitors irqs while this is 253 * happening, in hope of automatically determining which one is 254 * being used by the interface. 255 * 256 * Returns: 0 device was identified 257 * 1 device timed-out (no response to identify request) 258 * 2 device aborted the command (refused to identify itself) 259 */ 260 261static int actual_try_to_identify (ide_drive_t *drive, u8 cmd) 262{ 263 ide_hwif_t *hwif = HWIF(drive); 264 int rc; 265 unsigned long hd_status; 266 unsigned long timeout; 267 u8 s = 0, a = 0; 268 269 /* take a deep breath */ 270 msleep(50); 271 272 if (IDE_CONTROL_REG) { 273 a = hwif->INB(IDE_ALTSTATUS_REG); 274 s = hwif->INB(IDE_STATUS_REG); 275 if ((a ^ s) & ~INDEX_STAT) { 276 printk(KERN_INFO "%s: probing with STATUS(0x%02x) instead of " 277 "ALTSTATUS(0x%02x)\n", drive->name, s, a); 278 /* ancient Seagate drives, broken interfaces */ 279 hd_status = IDE_STATUS_REG; 280 } else { 281 /* use non-intrusive polling */ 282 hd_status = IDE_ALTSTATUS_REG; 283 } 284 } else 285 hd_status = IDE_STATUS_REG; 286 287 /* set features register for atapi 288 * identify command to be sure of reply 289 */ 290 if ((cmd == WIN_PIDENTIFY)) 291 /* disable dma & overlap */ 292 hwif->OUTB(0, IDE_FEATURE_REG); 293 294 /* ask drive for ID */ 295 hwif->OUTB(cmd, IDE_COMMAND_REG); 296 297 timeout = ((cmd == WIN_IDENTIFY) ? WAIT_WORSTCASE : WAIT_PIDENTIFY) / 2; 298 timeout += jiffies; 299 do { 300 if (time_after(jiffies, timeout)) { 301 /* drive timed-out */ 302 return 1; 303 } 304 /* give drive a breather */ 305 msleep(50); 306 } while ((hwif->INB(hd_status)) & BUSY_STAT); 307 308 /* wait for IRQ and DRQ_STAT */ 309 msleep(50); 310 if (OK_STAT((hwif->INB(IDE_STATUS_REG)), DRQ_STAT, BAD_R_STAT)) { 311 unsigned long flags; 312 313 /* local CPU only; some systems need this */ 314 local_irq_save(flags); 315 /* drive returned ID */ 316 do_identify(drive, cmd); 317 /* drive responded with ID */ 318 rc = 0; 319 /* clear drive IRQ */ 320 (void) hwif->INB(IDE_STATUS_REG); 321 local_irq_restore(flags); 322 } else { 323 /* drive refused ID */ 324 rc = 2; 325 } 326 return rc; 327} 328 329/** 330 * try_to_identify - try to identify a drive 331 * @drive: drive to probe 332 * @cmd: command to use 333 * 334 * Issue the identify command and then do IRQ probing to 335 * complete the identification when needed by finding the 336 * IRQ the drive is attached to 337 */ 338 339static int try_to_identify (ide_drive_t *drive, u8 cmd) 340{ 341 ide_hwif_t *hwif = HWIF(drive); 342 int retval; 343 int autoprobe = 0; 344 unsigned long cookie = 0; 345 346 /* 347 * Disable device irq unless we need to 348 * probe for it. Otherwise we'll get spurious 349 * interrupts during the identify-phase that 350 * the irq handler isn't expecting. 351 */ 352 if (IDE_CONTROL_REG) { 353 if (!hwif->irq) { 354 autoprobe = 1; 355 cookie = probe_irq_on(); 356 } 357 ide_set_irq(drive, autoprobe); 358 } 359 360 retval = actual_try_to_identify(drive, cmd); 361 362 if (autoprobe) { 363 int irq; 364 365 ide_set_irq(drive, 0); 366 /* clear drive IRQ */ 367 (void) hwif->INB(IDE_STATUS_REG); 368 udelay(5); 369 irq = probe_irq_off(cookie); 370 if (!hwif->irq) { 371 if (irq > 0) { 372 hwif->irq = irq; 373 } else { 374 /* Mmmm.. multiple IRQs.. 375 * don't know which was ours 376 */ 377 printk("%s: IRQ probe failed (0x%lx)\n", 378 drive->name, cookie); 379 } 380 } 381 } 382 return retval; 383} 384 385 386/** 387 * do_probe - probe an IDE device 388 * @drive: drive to probe 389 * @cmd: command to use 390 * 391 * do_probe() has the difficult job of finding a drive if it exists, 392 * without getting hung up if it doesn't exist, without trampling on 393 * ethernet cards, and without leaving any IRQs dangling to haunt us later. 394 * 395 * If a drive is "known" to exist (from CMOS or kernel parameters), 396 * but does not respond right away, the probe will "hang in there" 397 * for the maximum wait time (about 30 seconds), otherwise it will 398 * exit much more quickly. 399 * 400 * Returns: 0 device was identified 401 * 1 device timed-out (no response to identify request) 402 * 2 device aborted the command (refused to identify itself) 403 * 3 bad status from device (possible for ATAPI drives) 404 * 4 probe was not attempted because failure was obvious 405 */ 406 407static int do_probe (ide_drive_t *drive, u8 cmd) 408{ 409 int rc; 410 ide_hwif_t *hwif = HWIF(drive); 411 412 if (drive->present) { 413 /* avoid waiting for inappropriate probes */ 414 if ((drive->media != ide_disk) && (cmd == WIN_IDENTIFY)) 415 return 4; 416 } 417#ifdef DEBUG 418 printk("probing for %s: present=%d, media=%d, probetype=%s\n", 419 drive->name, drive->present, drive->media, 420 (cmd == WIN_IDENTIFY) ? "ATA" : "ATAPI"); 421#endif 422 423 /* needed for some systems 424 * (e.g. crw9624 as drive0 with disk as slave) 425 */ 426 msleep(50); 427 SELECT_DRIVE(drive); 428 msleep(50); 429 if (hwif->INB(IDE_SELECT_REG) != drive->select.all && !drive->present) { 430 if (drive->select.b.unit != 0) { 431 /* exit with drive0 selected */ 432 SELECT_DRIVE(&hwif->drives[0]); 433 /* allow BUSY_STAT to assert & clear */ 434 msleep(50); 435 } 436 /* no i/f present: mmm.. this should be a 4 -ml */ 437 return 3; 438 } 439 440 if (OK_STAT((hwif->INB(IDE_STATUS_REG)), READY_STAT, BUSY_STAT) || 441 drive->present || cmd == WIN_PIDENTIFY) { 442 /* send cmd and wait */ 443 if ((rc = try_to_identify(drive, cmd))) { 444 /* failed: try again */ 445 rc = try_to_identify(drive,cmd); 446 } 447 if (hwif->INB(IDE_STATUS_REG) == (BUSY_STAT|READY_STAT)) 448 return 4; 449 450 if ((rc == 1 && cmd == WIN_PIDENTIFY) && 451 ((drive->autotune == IDE_TUNE_DEFAULT) || 452 (drive->autotune == IDE_TUNE_AUTO))) { 453 unsigned long timeout; 454 printk("%s: no response (status = 0x%02x), " 455 "resetting drive\n", drive->name, 456 hwif->INB(IDE_STATUS_REG)); 457 msleep(50); 458 hwif->OUTB(drive->select.all, IDE_SELECT_REG); 459 msleep(50); 460 hwif->OUTB(WIN_SRST, IDE_COMMAND_REG); 461 timeout = jiffies; 462 while (((hwif->INB(IDE_STATUS_REG)) & BUSY_STAT) && 463 time_before(jiffies, timeout + WAIT_WORSTCASE)) 464 msleep(50); 465 rc = try_to_identify(drive, cmd); 466 } 467 if (rc == 1) 468 printk("%s: no response (status = 0x%02x)\n", 469 drive->name, hwif->INB(IDE_STATUS_REG)); 470 /* ensure drive irq is clear */ 471 (void) hwif->INB(IDE_STATUS_REG); 472 } else { 473 /* not present or maybe ATAPI */ 474 rc = 3; 475 } 476 if (drive->select.b.unit != 0) { 477 /* exit with drive0 selected */ 478 SELECT_DRIVE(&hwif->drives[0]); 479 msleep(50); 480 /* ensure drive irq is clear */ 481 (void) hwif->INB(IDE_STATUS_REG); 482 } 483 return rc; 484} 485 486/* 487 * 488 */ 489static void enable_nest (ide_drive_t *drive) 490{ 491 ide_hwif_t *hwif = HWIF(drive); 492 unsigned long timeout; 493 494 printk("%s: enabling %s -- ", hwif->name, drive->id->model); 495 SELECT_DRIVE(drive); 496 msleep(50); 497 hwif->OUTB(EXABYTE_ENABLE_NEST, IDE_COMMAND_REG); 498 timeout = jiffies + WAIT_WORSTCASE; 499 do { 500 if (time_after(jiffies, timeout)) { 501 printk("failed (timeout)\n"); 502 return; 503 } 504 msleep(50); 505 } while ((hwif->INB(IDE_STATUS_REG)) & BUSY_STAT); 506 507 msleep(50); 508 509 if (!OK_STAT((hwif->INB(IDE_STATUS_REG)), 0, BAD_STAT)) { 510 printk("failed (status = 0x%02x)\n", hwif->INB(IDE_STATUS_REG)); 511 } else { 512 printk("success\n"); 513 } 514 515 /* if !(success||timed-out) */ 516 if (do_probe(drive, WIN_IDENTIFY) >= 2) { 517 /* look for ATAPI device */ 518 (void) do_probe(drive, WIN_PIDENTIFY); 519 } 520} 521 522/** 523 * probe_for_drives - upper level drive probe 524 * @drive: drive to probe for 525 * 526 * probe_for_drive() tests for existence of a given drive using do_probe() 527 * and presents things to the user as needed. 528 * 529 * Returns: 0 no device was found 530 * 1 device was found (note: drive->present might 531 * still be 0) 532 */ 533 534static inline u8 probe_for_drive (ide_drive_t *drive) 535{ 536 /* 537 * In order to keep things simple we have an id 538 * block for all drives at all times. If the device 539 * is pre ATA or refuses ATA/ATAPI identify we 540 * will add faked data to this. 541 * 542 * Also note that 0 everywhere means "can't do X" 543 */ 544 545 drive->id = kzalloc(SECTOR_WORDS *4, GFP_KERNEL); 546 drive->id_read = 0; 547 if(drive->id == NULL) 548 { 549 printk(KERN_ERR "ide: out of memory for id data.\n"); 550 return 0; 551 } 552 strcpy(drive->id->model, "UNKNOWN"); 553 554 /* skip probing? */ 555 if (!drive->noprobe) 556 { 557 /* if !(success||timed-out) */ 558 if (do_probe(drive, WIN_IDENTIFY) >= 2) { 559 /* look for ATAPI device */ 560 (void) do_probe(drive, WIN_PIDENTIFY); 561 } 562 if (!drive->present) 563 /* drive not found */ 564 return 0; 565 if (strstr(drive->id->model, "E X A B Y T E N E S T")) 566 enable_nest(drive); 567 568 /* identification failed? */ 569 if (!drive->id_read) { 570 if (drive->media == ide_disk) { 571 printk(KERN_INFO "%s: non-IDE drive, CHS=%d/%d/%d\n", 572 drive->name, drive->cyl, 573 drive->head, drive->sect); 574 } else if (drive->media == ide_cdrom) { 575 printk(KERN_INFO "%s: ATAPI cdrom (?)\n", drive->name); 576 } else { 577 /* nuke it */ 578 printk(KERN_WARNING "%s: Unknown device on bus refused identification. Ignoring.\n", drive->name); 579 drive->present = 0; 580 } 581 } 582 /* drive was found */ 583 } 584 if(!drive->present) 585 return 0; 586 /* The drive wasn't being helpful. Add generic info only */ 587 if (drive->id_read == 0) { 588 generic_id(drive); 589 return 1; 590 } 591 592 if (drive->media == ide_disk) { 593 ide_disk_init_chs(drive); 594 ide_disk_init_mult_count(drive); 595 } 596 597 return drive->present; 598} 599 600static void hwif_release_dev (struct device *dev) 601{ 602 ide_hwif_t *hwif = container_of(dev, ide_hwif_t, gendev); 603 604 complete(&hwif->gendev_rel_comp); 605} 606 607static void hwif_register (ide_hwif_t *hwif) 608{ 609 int ret; 610 611 /* register with global device tree */ 612 strlcpy(hwif->gendev.bus_id,hwif->name,BUS_ID_SIZE); 613 hwif->gendev.driver_data = hwif; 614 if (hwif->gendev.parent == NULL) { 615 if (hwif->pci_dev) 616 hwif->gendev.parent = &hwif->pci_dev->dev; 617 else 618 /* Would like to do = &device_legacy */ 619 hwif->gendev.parent = NULL; 620 } 621 hwif->gendev.release = hwif_release_dev; 622 ret = device_register(&hwif->gendev); 623 if (ret < 0) 624 printk(KERN_WARNING "IDE: %s: device_register error: %d\n", 625 __FUNCTION__, ret); 626} 627 628static int wait_hwif_ready(ide_hwif_t *hwif) 629{ 630 int unit, rc; 631 632 printk(KERN_DEBUG "Probing IDE interface %s...\n", hwif->name); 633 634 /* Let HW settle down a bit from whatever init state we 635 * come from */ 636 mdelay(2); 637 638 /* Wait for BSY bit to go away, spec timeout is 30 seconds, 639 * I know of at least one disk who takes 31 seconds, I use 35 640 * here to be safe 641 */ 642 rc = ide_wait_not_busy(hwif, 35000); 643 if (rc) 644 return rc; 645 646 /* Now make sure both master & slave are ready */ 647 for (unit = 0; unit < MAX_DRIVES; unit++) { 648 ide_drive_t *drive = &hwif->drives[unit]; 649 650 /* Ignore disks that we will not probe for later. */ 651 if (!drive->noprobe || drive->present) { 652 SELECT_DRIVE(drive); 653 ide_set_irq(drive, 1); 654 mdelay(2); 655 rc = ide_wait_not_busy(hwif, 35000); 656 if (rc) 657 goto out; 658 } else 659 printk(KERN_DEBUG "%s: ide_wait_not_busy() skipped\n", 660 drive->name); 661 } 662out: 663 /* Exit function with master reselected (let's be sane) */ 664 if (unit) 665 SELECT_DRIVE(&hwif->drives[0]); 666 667 return rc; 668} 669 670/** 671 * ide_undecoded_slave - look for bad CF adapters 672 * @drive1: drive 673 * 674 * Analyse the drives on the interface and attempt to decide if we 675 * have the same drive viewed twice. This occurs with crap CF adapters 676 * and PCMCIA sometimes. 677 */ 678 679void ide_undecoded_slave(ide_drive_t *drive1) 680{ 681 ide_drive_t *drive0 = &drive1->hwif->drives[0]; 682 683 if ((drive1->dn & 1) == 0 || drive0->present == 0) 684 return; 685 686 /* If the models don't match they are not the same product */ 687 if (strcmp(drive0->id->model, drive1->id->model)) 688 return; 689 690 /* Serial numbers do not match */ 691 if (strncmp(drive0->id->serial_no, drive1->id->serial_no, 20)) 692 return; 693 694 /* No serial number, thankfully very rare for CF */ 695 if (drive0->id->serial_no[0] == 0) 696 return; 697 698 /* Appears to be an IDE flash adapter with decode bugs */ 699 printk(KERN_WARNING "ide-probe: ignoring undecoded slave\n"); 700 701 drive1->present = 0; 702} 703 704EXPORT_SYMBOL_GPL(ide_undecoded_slave); 705 706/* 707 * This routine only knows how to look for drive units 0 and 1 708 * on an interface, so any setting of MAX_DRIVES > 2 won't work here. 709 */ 710static void probe_hwif(ide_hwif_t *hwif) 711{ 712 unsigned long flags; 713 unsigned int irqd; 714 int unit; 715 716 if (hwif->noprobe) 717 return; 718 719 if ((hwif->chipset != ide_4drives || !hwif->mate || !hwif->mate->present) && 720 (ide_hwif_request_regions(hwif))) { 721 u16 msgout = 0; 722 for (unit = 0; unit < MAX_DRIVES; ++unit) { 723 ide_drive_t *drive = &hwif->drives[unit]; 724 if (drive->present) { 725 drive->present = 0; 726 printk(KERN_ERR "%s: ERROR, PORTS ALREADY IN USE\n", 727 drive->name); 728 msgout = 1; 729 } 730 } 731 if (!msgout) 732 printk(KERN_ERR "%s: ports already in use, skipping probe\n", 733 hwif->name); 734 return; 735 } 736 737 /* 738 * We must always disable IRQ, as probe_for_drive will assert IRQ, but 739 * we'll install our IRQ driver much later... 740 */ 741 irqd = hwif->irq; 742 if (irqd) 743 disable_irq(hwif->irq); 744 745 local_irq_set(flags); 746 747 /* This is needed on some PPCs and a bunch of BIOS-less embedded 748 * platforms. Typical cases are: 749 * 750 * - The firmware hard reset the disk before booting the kernel, 751 * the drive is still doing it's poweron-reset sequence, that 752 * can take up to 30 seconds 753 * - The firmware does nothing (or no firmware), the device is 754 * still in POST state (same as above actually). 755 * - Some CD/DVD/Writer combo drives tend to drive the bus during 756 * their reset sequence even when they are non-selected slave 757 * devices, thus preventing discovery of the main HD 758 * 759 * Doing this wait-for-busy should not harm any existing configuration 760 * (at least things won't be worse than what current code does, that 761 * is blindly go & talk to the drive) and fix some issues like the 762 * above. 763 * 764 * BenH. 765 */ 766 if (wait_hwif_ready(hwif) == -EBUSY) 767 printk(KERN_DEBUG "%s: Wait for ready failed before probe !\n", hwif->name); 768 769 /* 770 * Need to probe slave device first to make it release PDIAG-. 771 */ 772 for (unit = MAX_DRIVES - 1; unit >= 0; unit--) { 773 ide_drive_t *drive = &hwif->drives[unit]; 774 drive->dn = (hwif->channel ? 2 : 0) + unit; 775 (void) probe_for_drive(drive); 776 if (drive->present && !hwif->present) { 777 hwif->present = 1; 778 if (hwif->chipset != ide_4drives || 779 !hwif->mate || 780 !hwif->mate->present) { 781 hwif_register(hwif); 782 } 783 } 784 } 785 if (hwif->io_ports[IDE_CONTROL_OFFSET] && hwif->reset) { 786 unsigned long timeout = jiffies + WAIT_WORSTCASE; 787 u8 stat; 788 789 printk(KERN_WARNING "%s: reset\n", hwif->name); 790 hwif->OUTB(12, hwif->io_ports[IDE_CONTROL_OFFSET]); 791 udelay(10); 792 hwif->OUTB(8, hwif->io_ports[IDE_CONTROL_OFFSET]); 793 do { 794 msleep(50); 795 stat = hwif->INB(hwif->io_ports[IDE_STATUS_OFFSET]); 796 } while ((stat & BUSY_STAT) && time_after(timeout, jiffies)); 797 798 } 799 local_irq_restore(flags); 800 /* 801 * Use cached IRQ number. It might be (and is...) changed by probe 802 * code above 803 */ 804 if (irqd) 805 enable_irq(irqd); 806 807 if (!hwif->present) { 808 ide_hwif_release_regions(hwif); 809 return; 810 } 811 812 for (unit = 0; unit < MAX_DRIVES; unit++) { 813 ide_drive_t *drive = &hwif->drives[unit]; 814 815 if (drive->present && hwif->quirkproc) 816 hwif->quirkproc(drive); 817 } 818 819 for (unit = 0; unit < MAX_DRIVES; ++unit) { 820 ide_drive_t *drive = &hwif->drives[unit]; 821 822 if (drive->present) { 823 if (drive->autotune == IDE_TUNE_AUTO) 824 ide_set_max_pio(drive); 825 826 if (drive->autotune != IDE_TUNE_DEFAULT && 827 drive->autotune != IDE_TUNE_AUTO) 828 continue; 829 830 drive->nice1 = 1; 831 832 if (hwif->dma_host_set) 833 ide_set_dma(drive); 834 } 835 } 836 837 for (unit = 0; unit < MAX_DRIVES; ++unit) { 838 ide_drive_t *drive = &hwif->drives[unit]; 839 840 if (hwif->no_io_32bit) 841 drive->no_io_32bit = 1; 842 else 843 drive->no_io_32bit = drive->id->dword_io ? 1 : 0; 844 } 845} 846 847#if MAX_HWIFS > 1 848/* 849 * save_match() is used to simplify logic in init_irq() below. 850 * 851 * A loophole here is that we may not know about a particular 852 * hwif's irq until after that hwif is actually probed/initialized.. 853 * This could be a problem for the case where an hwif is on a 854 * dual interface that requires serialization (eg. cmd640) and another 855 * hwif using one of the same irqs is initialized beforehand. 856 * 857 * This routine detects and reports such situations, but does not fix them. 858 */ 859static void save_match(ide_hwif_t *hwif, ide_hwif_t *new, ide_hwif_t **match) 860{ 861 ide_hwif_t *m = *match; 862 863 if (m && m->hwgroup && m->hwgroup != new->hwgroup) { 864 if (!new->hwgroup) 865 return; 866 printk("%s: potential irq problem with %s and %s\n", 867 hwif->name, new->name, m->name); 868 } 869 if (!m || m->irq != hwif->irq) /* don't undo a prior perfect match */ 870 *match = new; 871} 872#endif /* MAX_HWIFS > 1 */ 873 874/* 875 * init request queue 876 */ 877static int ide_init_queue(ide_drive_t *drive) 878{ 879 struct request_queue *q; 880 ide_hwif_t *hwif = HWIF(drive); 881 int max_sectors = 256; 882 int max_sg_entries = PRD_ENTRIES; 883 884 /* 885 * Our default set up assumes the normal IDE case, 886 * that is 64K segmenting, standard PRD setup 887 * and LBA28. Some drivers then impose their own 888 * limits and LBA48 we could raise it but as yet 889 * do not. 890 */ 891 892 q = blk_init_queue_node(do_ide_request, &ide_lock, hwif_to_node(hwif)); 893 if (!q) 894 return 1; 895 896 q->queuedata = drive; 897 blk_queue_segment_boundary(q, 0xffff); 898 899 if (!hwif->rqsize) { 900 if ((hwif->host_flags & IDE_HFLAG_NO_LBA48) || 901 (hwif->host_flags & IDE_HFLAG_NO_LBA48_DMA)) 902 hwif->rqsize = 256; 903 else 904 hwif->rqsize = 65536; 905 } 906 if (hwif->rqsize < max_sectors) 907 max_sectors = hwif->rqsize; 908 blk_queue_max_sectors(q, max_sectors); 909 910#ifdef CONFIG_PCI 911 /* When we have an IOMMU, we may have a problem where pci_map_sg() 912 * creates segments that don't completely match our boundary 913 * requirements and thus need to be broken up again. Because it 914 * doesn't align properly either, we may actually have to break up 915 * to more segments than what was we got in the first place, a max 916 * worst case is twice as many. 917 * This will be fixed once we teach pci_map_sg() about our boundary 918 * requirements, hopefully soon. *FIXME* 919 */ 920 if (!PCI_DMA_BUS_IS_PHYS) 921 max_sg_entries >>= 1; 922#endif /* CONFIG_PCI */ 923 924 blk_queue_max_hw_segments(q, max_sg_entries); 925 blk_queue_max_phys_segments(q, max_sg_entries); 926 927 /* assign drive queue */ 928 drive->queue = q; 929 930 /* needs drive->queue to be set */ 931 ide_toggle_bounce(drive, 1); 932 933 return 0; 934} 935 936/* 937 * This routine sets up the irq for an ide interface, and creates a new 938 * hwgroup for the irq/hwif if none was previously assigned. 939 * 940 * Much of the code is for correctly detecting/handling irq sharing 941 * and irq serialization situations. This is somewhat complex because 942 * it handles static as well as dynamic (PCMCIA) IDE interfaces. 943 */ 944static int init_irq (ide_hwif_t *hwif) 945{ 946 unsigned int index; 947 ide_hwgroup_t *hwgroup; 948 ide_hwif_t *match = NULL; 949 950 951 BUG_ON(in_interrupt()); 952 BUG_ON(irqs_disabled()); 953 BUG_ON(hwif == NULL); 954 955 mutex_lock(&ide_cfg_mtx); 956 hwif->hwgroup = NULL; 957#if MAX_HWIFS > 1 958 /* 959 * Group up with any other hwifs that share our irq(s). 960 */ 961 for (index = 0; index < MAX_HWIFS; index++) { 962 ide_hwif_t *h = &ide_hwifs[index]; 963 if (h->hwgroup) { /* scan only initialized hwif's */ 964 if (hwif->irq == h->irq) { 965 hwif->sharing_irq = h->sharing_irq = 1; 966 if (hwif->chipset != ide_pci || 967 h->chipset != ide_pci) { 968 save_match(hwif, h, &match); 969 } 970 } 971 if (hwif->serialized) { 972 if (hwif->mate && hwif->mate->irq == h->irq) 973 save_match(hwif, h, &match); 974 } 975 if (h->serialized) { 976 if (h->mate && hwif->irq == h->mate->irq) 977 save_match(hwif, h, &match); 978 } 979 } 980 } 981#endif /* MAX_HWIFS > 1 */ 982 /* 983 * If we are still without a hwgroup, then form a new one 984 */ 985 if (match) { 986 hwgroup = match->hwgroup; 987 hwif->hwgroup = hwgroup; 988 /* 989 * Link us into the hwgroup. 990 * This must be done early, do ensure that unexpected_intr 991 * can find the hwif and prevent irq storms. 992 * No drives are attached to the new hwif, choose_drive 993 * can't do anything stupid (yet). 994 * Add ourself as the 2nd entry to the hwgroup->hwif 995 * linked list, the first entry is the hwif that owns 996 * hwgroup->handler - do not change that. 997 */ 998 spin_lock_irq(&ide_lock); 999 hwif->next = hwgroup->hwif->next; 1000 hwgroup->hwif->next = hwif; 1001 spin_unlock_irq(&ide_lock); 1002 } else { 1003 hwgroup = kmalloc_node(sizeof(ide_hwgroup_t), 1004 GFP_KERNEL | __GFP_ZERO, 1005 hwif_to_node(hwif->drives[0].hwif)); 1006 if (!hwgroup) 1007 goto out_up; 1008 1009 hwif->hwgroup = hwgroup; 1010 1011 hwgroup->hwif = hwif->next = hwif; 1012 hwgroup->rq = NULL; 1013 hwgroup->handler = NULL; 1014 hwgroup->drive = NULL; 1015 hwgroup->busy = 0; 1016 init_timer(&hwgroup->timer); 1017 hwgroup->timer.function = &ide_timer_expiry; 1018 hwgroup->timer.data = (unsigned long) hwgroup; 1019 } 1020 1021 /* 1022 * Allocate the irq, if not already obtained for another hwif 1023 */ 1024 if (!match || match->irq != hwif->irq) { 1025 int sa = 0; 1026#if defined(__mc68000__) || defined(CONFIG_APUS) 1027 sa = IRQF_SHARED; 1028#endif /* __mc68000__ || CONFIG_APUS */ 1029 1030 if (IDE_CHIPSET_IS_PCI(hwif->chipset)) 1031 sa = IRQF_SHARED; 1032 1033 if (hwif->io_ports[IDE_CONTROL_OFFSET]) 1034 /* clear nIEN */ 1035 hwif->OUTB(0x08, hwif->io_ports[IDE_CONTROL_OFFSET]); 1036 1037 if (request_irq(hwif->irq,&ide_intr,sa,hwif->name,hwgroup)) 1038 goto out_unlink; 1039 } 1040 1041 /* 1042 * For any present drive: 1043 * - allocate the block device queue 1044 * - link drive into the hwgroup 1045 */ 1046 for (index = 0; index < MAX_DRIVES; ++index) { 1047 ide_drive_t *drive = &hwif->drives[index]; 1048 if (!drive->present) 1049 continue; 1050 if (ide_init_queue(drive)) { 1051 printk(KERN_ERR "ide: failed to init %s\n",drive->name); 1052 continue; 1053 } 1054 spin_lock_irq(&ide_lock); 1055 if (!hwgroup->drive) { 1056 /* first drive for hwgroup. */ 1057 drive->next = drive; 1058 hwgroup->drive = drive; 1059 hwgroup->hwif = HWIF(hwgroup->drive); 1060 } else { 1061 drive->next = hwgroup->drive->next; 1062 hwgroup->drive->next = drive; 1063 } 1064 spin_unlock_irq(&ide_lock); 1065 } 1066 1067#if !defined(__mc68000__) && !defined(CONFIG_APUS) 1068 printk("%s at 0x%03lx-0x%03lx,0x%03lx on irq %d", hwif->name, 1069 hwif->io_ports[IDE_DATA_OFFSET], 1070 hwif->io_ports[IDE_DATA_OFFSET]+7, 1071 hwif->io_ports[IDE_CONTROL_OFFSET], hwif->irq); 1072#else 1073 printk("%s at 0x%08lx on irq %d", hwif->name, 1074 hwif->io_ports[IDE_DATA_OFFSET], hwif->irq); 1075#endif /* __mc68000__ && CONFIG_APUS */ 1076 if (match) 1077 printk(" (%sed with %s)", 1078 hwif->sharing_irq ? "shar" : "serializ", match->name); 1079 printk("\n"); 1080 mutex_unlock(&ide_cfg_mtx); 1081 return 0; 1082out_unlink: 1083 spin_lock_irq(&ide_lock); 1084 if (hwif->next == hwif) { 1085 BUG_ON(match); 1086 BUG_ON(hwgroup->hwif != hwif); 1087 kfree(hwgroup); 1088 } else { 1089 ide_hwif_t *g; 1090 g = hwgroup->hwif; 1091 while (g->next != hwif) 1092 g = g->next; 1093 g->next = hwif->next; 1094 if (hwgroup->hwif == hwif) { 1095 /* Impossible. */ 1096 printk(KERN_ERR "Duh. Uninitialized hwif listed as active hwif.\n"); 1097 hwgroup->hwif = g; 1098 } 1099 BUG_ON(hwgroup->hwif == hwif); 1100 } 1101 spin_unlock_irq(&ide_lock); 1102out_up: 1103 mutex_unlock(&ide_cfg_mtx); 1104 return 1; 1105} 1106 1107static int ata_lock(dev_t dev, void *data) 1108{ 1109 /* FIXME: we want to pin hwif down */ 1110 return 0; 1111} 1112 1113static struct kobject *ata_probe(dev_t dev, int *part, void *data) 1114{ 1115 ide_hwif_t *hwif = data; 1116 int unit = *part >> PARTN_BITS; 1117 ide_drive_t *drive = &hwif->drives[unit]; 1118 if (!drive->present) 1119 return NULL; 1120 1121 if (drive->media == ide_disk) 1122 request_module("ide-disk"); 1123 if (drive->scsi) 1124 request_module("ide-scsi"); 1125 if (drive->media == ide_cdrom || drive->media == ide_optical) 1126 request_module("ide-cd"); 1127 if (drive->media == ide_tape) 1128 request_module("ide-tape"); 1129 if (drive->media == ide_floppy) 1130 request_module("ide-floppy"); 1131 1132 return NULL; 1133} 1134 1135static struct kobject *exact_match(dev_t dev, int *part, void *data) 1136{ 1137 struct gendisk *p = data; 1138 *part &= (1 << PARTN_BITS) - 1; 1139 return &p->dev.kobj; 1140} 1141 1142static int exact_lock(dev_t dev, void *data) 1143{ 1144 struct gendisk *p = data; 1145 1146 if (!get_disk(p)) 1147 return -1; 1148 return 0; 1149} 1150 1151void ide_register_region(struct gendisk *disk) 1152{ 1153 blk_register_region(MKDEV(disk->major, disk->first_minor), 1154 disk->minors, NULL, exact_match, exact_lock, disk); 1155} 1156 1157EXPORT_SYMBOL_GPL(ide_register_region); 1158 1159void ide_unregister_region(struct gendisk *disk) 1160{ 1161 blk_unregister_region(MKDEV(disk->major, disk->first_minor), 1162 disk->minors); 1163} 1164 1165EXPORT_SYMBOL_GPL(ide_unregister_region); 1166 1167void ide_init_disk(struct gendisk *disk, ide_drive_t *drive) 1168{ 1169 ide_hwif_t *hwif = drive->hwif; 1170 unsigned int unit = (drive->select.all >> 4) & 1; 1171 1172 disk->major = hwif->major; 1173 disk->first_minor = unit << PARTN_BITS; 1174 sprintf(disk->disk_name, "hd%c", 'a' + hwif->index * MAX_DRIVES + unit); 1175 disk->queue = drive->queue; 1176} 1177 1178EXPORT_SYMBOL_GPL(ide_init_disk); 1179 1180static void ide_remove_drive_from_hwgroup(ide_drive_t *drive) 1181{ 1182 ide_hwgroup_t *hwgroup = drive->hwif->hwgroup; 1183 1184 if (drive == drive->next) { 1185 /* special case: last drive from hwgroup. */ 1186 BUG_ON(hwgroup->drive != drive); 1187 hwgroup->drive = NULL; 1188 } else { 1189 ide_drive_t *walk; 1190 1191 walk = hwgroup->drive; 1192 while (walk->next != drive) 1193 walk = walk->next; 1194 walk->next = drive->next; 1195 if (hwgroup->drive == drive) { 1196 hwgroup->drive = drive->next; 1197 hwgroup->hwif = hwgroup->drive->hwif; 1198 } 1199 } 1200 BUG_ON(hwgroup->drive == drive); 1201} 1202 1203static void drive_release_dev (struct device *dev) 1204{ 1205 ide_drive_t *drive = container_of(dev, ide_drive_t, gendev); 1206 1207 spin_lock_irq(&ide_lock); 1208 ide_remove_drive_from_hwgroup(drive); 1209 kfree(drive->id); 1210 drive->id = NULL; 1211 drive->present = 0; 1212 /* Messed up locking ... */ 1213 spin_unlock_irq(&ide_lock); 1214 blk_cleanup_queue(drive->queue); 1215 spin_lock_irq(&ide_lock); 1216 drive->queue = NULL; 1217 spin_unlock_irq(&ide_lock); 1218 1219 complete(&drive->gendev_rel_comp); 1220} 1221 1222/* 1223 * init_gendisk() (as opposed to ide_geninit) is called for each major device, 1224 * after probing for drives, to allocate partition tables and other data 1225 * structures needed for the routines in genhd.c. ide_geninit() gets called 1226 * somewhat later, during the partition check. 1227 */ 1228static void init_gendisk (ide_hwif_t *hwif) 1229{ 1230 unsigned int unit; 1231 1232 for (unit = 0; unit < MAX_DRIVES; ++unit) { 1233 ide_drive_t * drive = &hwif->drives[unit]; 1234 ide_add_generic_settings(drive); 1235 snprintf(drive->gendev.bus_id,BUS_ID_SIZE,"%u.%u", 1236 hwif->index,unit); 1237 drive->gendev.parent = &hwif->gendev; 1238 drive->gendev.bus = &ide_bus_type; 1239 drive->gendev.driver_data = drive; 1240 drive->gendev.release = drive_release_dev; 1241 } 1242 blk_register_region(MKDEV(hwif->major, 0), MAX_DRIVES << PARTN_BITS, 1243 THIS_MODULE, ata_probe, ata_lock, hwif); 1244} 1245 1246static int hwif_init(ide_hwif_t *hwif) 1247{ 1248 int old_irq; 1249 1250 /* Return success if no device is connected */ 1251 if (!hwif->present) 1252 return 1; 1253 1254 if (!hwif->irq) { 1255 if (!(hwif->irq = ide_default_irq(hwif->io_ports[IDE_DATA_OFFSET]))) 1256 { 1257 printk("%s: DISABLED, NO IRQ\n", hwif->name); 1258 return (hwif->present = 0); 1259 } 1260 } 1261#ifdef CONFIG_BLK_DEV_HD 1262 if (hwif->irq == HD_IRQ && hwif->io_ports[IDE_DATA_OFFSET] != HD_DATA) { 1263 printk("%s: CANNOT SHARE IRQ WITH OLD " 1264 "HARDDISK DRIVER (hd.c)\n", hwif->name); 1265 return (hwif->present = 0); 1266 } 1267#endif /* CONFIG_BLK_DEV_HD */ 1268 1269 /* we set it back to 1 if all is ok below */ 1270 hwif->present = 0; 1271 1272 if (register_blkdev(hwif->major, hwif->name)) 1273 return 0; 1274 1275 if (!hwif->sg_max_nents) 1276 hwif->sg_max_nents = PRD_ENTRIES; 1277 1278 hwif->sg_table = kmalloc(sizeof(struct scatterlist)*hwif->sg_max_nents, 1279 GFP_KERNEL); 1280 if (!hwif->sg_table) { 1281 printk(KERN_ERR "%s: unable to allocate SG table.\n", hwif->name); 1282 goto out; 1283 } 1284 1285 sg_init_table(hwif->sg_table, hwif->sg_max_nents); 1286 1287 if (init_irq(hwif) == 0) 1288 goto done; 1289 1290 old_irq = hwif->irq; 1291 /* 1292 * It failed to initialise. Find the default IRQ for 1293 * this port and try that. 1294 */ 1295 if (!(hwif->irq = ide_default_irq(hwif->io_ports[IDE_DATA_OFFSET]))) { 1296 printk("%s: Disabled unable to get IRQ %d.\n", 1297 hwif->name, old_irq); 1298 goto out; 1299 } 1300 if (init_irq(hwif)) { 1301 printk("%s: probed IRQ %d and default IRQ %d failed.\n", 1302 hwif->name, old_irq, hwif->irq); 1303 goto out; 1304 } 1305 printk("%s: probed IRQ %d failed, using default.\n", 1306 hwif->name, hwif->irq); 1307 1308done: 1309 init_gendisk(hwif); 1310 1311 ide_acpi_init(hwif); 1312 1313 hwif->present = 1; /* success */ 1314 return 1; 1315 1316out: 1317 unregister_blkdev(hwif->major, hwif->name); 1318 return 0; 1319} 1320 1321static void hwif_register_devices(ide_hwif_t *hwif) 1322{ 1323 unsigned int i; 1324 1325 for (i = 0; i < MAX_DRIVES; i++) { 1326 ide_drive_t *drive = &hwif->drives[i]; 1327 1328 if (drive->present) { 1329 int ret = device_register(&drive->gendev); 1330 1331 if (ret < 0) 1332 printk(KERN_WARNING "IDE: %s: " 1333 "device_register error: %d\n", 1334 __FUNCTION__, ret); 1335 } 1336 } 1337} 1338 1339int ide_device_add_all(u8 *idx) 1340{ 1341 ide_hwif_t *hwif; 1342 int i, rc = 0; 1343 1344 for (i = 0; i < MAX_HWIFS; i++) { 1345 if (idx[i] == 0xff) 1346 continue; 1347 1348 probe_hwif(&ide_hwifs[idx[i]]); 1349 } 1350 1351 for (i = 0; i < MAX_HWIFS; i++) { 1352 if (idx[i] == 0xff) 1353 continue; 1354 1355 hwif = &ide_hwifs[idx[i]]; 1356 1357 if (hwif_init(hwif) == 0) { 1358 printk(KERN_INFO "%s: failed to initialize IDE " 1359 "interface\n", hwif->name); 1360 rc = -1; 1361 continue; 1362 } 1363 } 1364 1365 for (i = 0; i < MAX_HWIFS; i++) { 1366 if (idx[i] == 0xff) 1367 continue; 1368 1369 hwif = &ide_hwifs[idx[i]]; 1370 1371 if (hwif->present) { 1372 if (hwif->chipset == ide_unknown || 1373 hwif->chipset == ide_forced) 1374 hwif->chipset = ide_generic; 1375 hwif_register_devices(hwif); 1376 } 1377 } 1378 1379 for (i = 0; i < MAX_HWIFS; i++) { 1380 if (idx[i] != 0xff) 1381 ide_proc_register_port(&ide_hwifs[idx[i]]); 1382 } 1383 1384 return rc; 1385} 1386EXPORT_SYMBOL_GPL(ide_device_add_all); 1387 1388int ide_device_add(u8 idx[4]) 1389{ 1390 u8 idx_all[MAX_HWIFS]; 1391 int i; 1392 1393 for (i = 0; i < MAX_HWIFS; i++) 1394 idx_all[i] = (i < 4) ? idx[i] : 0xff; 1395 1396 return ide_device_add_all(idx_all); 1397} 1398EXPORT_SYMBOL_GPL(ide_device_add); 1399