ide.c revision 1a2f84ea3e5110872b9aa86763360609b4b04e1b
1/* 2 * Copyright (C) 1994-1998 Linus Torvalds & authors (see below) 3 * Copyrifht (C) 2003-2005, 2007 Bartlomiej Zolnierkiewicz 4 */ 5 6/* 7 * Mostly written by Mark Lord <mlord@pobox.com> 8 * and Gadi Oxman <gadio@netvision.net.il> 9 * and Andre Hedrick <andre@linux-ide.org> 10 * 11 * See linux/MAINTAINERS for address of current maintainer. 12 * 13 * This is the multiple IDE interface driver, as evolved from hd.c. 14 * It supports up to MAX_HWIFS IDE interfaces, on one or more IRQs 15 * (usually 14 & 15). 16 * There can be up to two drives per interface, as per the ATA-2 spec. 17 * 18 * ... 19 * 20 * From hd.c: 21 * | 22 * | It traverses the request-list, using interrupts to jump between functions. 23 * | As nearly all functions can be called within interrupts, we may not sleep. 24 * | Special care is recommended. Have Fun! 25 * | 26 * | modified by Drew Eckhardt to check nr of hd's from the CMOS. 27 * | 28 * | Thanks to Branko Lankester, lankeste@fwi.uva.nl, who found a bug 29 * | in the early extended-partition checks and added DM partitions. 30 * | 31 * | Early work on error handling by Mika Liljeberg (liljeber@cs.Helsinki.FI). 32 * | 33 * | IRQ-unmask, drive-id, multiple-mode, support for ">16 heads", 34 * | and general streamlining by Mark Lord (mlord@pobox.com). 35 * 36 * October, 1994 -- Complete line-by-line overhaul for linux 1.1.x, by: 37 * 38 * Mark Lord (mlord@pobox.com) (IDE Perf.Pkg) 39 * Delman Lee (delman@ieee.org) ("Mr. atdisk2") 40 * Scott Snyder (snyder@fnald0.fnal.gov) (ATAPI IDE cd-rom) 41 * 42 * This was a rewrite of just about everything from hd.c, though some original 43 * code is still sprinkled about. Think of it as a major evolution, with 44 * inspiration from lots of linux users, esp. hamish@zot.apana.org.au 45 */ 46 47#define _IDE_C /* Tell ide.h it's really us */ 48 49#include <linux/module.h> 50#include <linux/types.h> 51#include <linux/string.h> 52#include <linux/kernel.h> 53#include <linux/timer.h> 54#include <linux/mm.h> 55#include <linux/interrupt.h> 56#include <linux/major.h> 57#include <linux/errno.h> 58#include <linux/genhd.h> 59#include <linux/blkpg.h> 60#include <linux/slab.h> 61#include <linux/init.h> 62#include <linux/pci.h> 63#include <linux/delay.h> 64#include <linux/ide.h> 65#include <linux/completion.h> 66#include <linux/reboot.h> 67#include <linux/cdrom.h> 68#include <linux/seq_file.h> 69#include <linux/device.h> 70#include <linux/bitops.h> 71 72#include <asm/byteorder.h> 73#include <asm/irq.h> 74#include <asm/uaccess.h> 75#include <asm/io.h> 76 77 78/* default maximum number of failures */ 79#define IDE_DEFAULT_MAX_FAILURES 1 80 81struct class *ide_port_class; 82 83static const u8 ide_hwif_to_major[] = { IDE0_MAJOR, IDE1_MAJOR, 84 IDE2_MAJOR, IDE3_MAJOR, 85 IDE4_MAJOR, IDE5_MAJOR, 86 IDE6_MAJOR, IDE7_MAJOR, 87 IDE8_MAJOR, IDE9_MAJOR }; 88 89static int idebus_parameter; /* holds the "idebus=" parameter */ 90static int system_bus_speed; /* holds what we think is VESA/PCI bus speed */ 91 92DEFINE_MUTEX(ide_cfg_mtx); 93 __cacheline_aligned_in_smp DEFINE_SPINLOCK(ide_lock); 94 95int noautodma = 0; 96 97#ifdef CONFIG_BLK_DEV_IDEACPI 98int ide_noacpi = 0; 99int ide_noacpitfs = 1; 100int ide_noacpionboot = 1; 101#endif 102 103ide_hwif_t ide_hwifs[MAX_HWIFS]; /* master data repository */ 104 105static void ide_port_init_devices_data(ide_hwif_t *); 106 107/* 108 * Do not even *think* about calling this! 109 */ 110void ide_init_port_data(ide_hwif_t *hwif, unsigned int index) 111{ 112 /* bulk initialize hwif & drive info with zeros */ 113 memset(hwif, 0, sizeof(ide_hwif_t)); 114 115 /* fill in any non-zero initial values */ 116 hwif->index = index; 117 hwif->major = ide_hwif_to_major[index]; 118 119 hwif->name[0] = 'i'; 120 hwif->name[1] = 'd'; 121 hwif->name[2] = 'e'; 122 hwif->name[3] = '0' + index; 123 124 hwif->bus_state = BUSSTATE_ON; 125 126 init_completion(&hwif->gendev_rel_comp); 127 128 default_hwif_iops(hwif); 129 default_hwif_transport(hwif); 130 131 ide_port_init_devices_data(hwif); 132} 133EXPORT_SYMBOL_GPL(ide_init_port_data); 134 135static void ide_port_init_devices_data(ide_hwif_t *hwif) 136{ 137 int unit; 138 139 for (unit = 0; unit < MAX_DRIVES; ++unit) { 140 ide_drive_t *drive = &hwif->drives[unit]; 141 u8 j = (hwif->index * MAX_DRIVES) + unit; 142 143 memset(drive, 0, sizeof(*drive)); 144 145 drive->media = ide_disk; 146 drive->select.all = (unit<<4)|0xa0; 147 drive->hwif = hwif; 148 drive->ctl = 0x08; 149 drive->ready_stat = READY_STAT; 150 drive->bad_wstat = BAD_W_STAT; 151 drive->special.b.recalibrate = 1; 152 drive->special.b.set_geometry = 1; 153 drive->name[0] = 'h'; 154 drive->name[1] = 'd'; 155 drive->name[2] = 'a' + j; 156 drive->max_failures = IDE_DEFAULT_MAX_FAILURES; 157 158 INIT_LIST_HEAD(&drive->list); 159 init_completion(&drive->gendev_rel_comp); 160 } 161} 162 163/* 164 * init_ide_data() sets reasonable default values into all fields 165 * of all instances of the hwifs and drives, but only on the first call. 166 * Subsequent calls have no effect (they don't wipe out anything). 167 * 168 * This routine is normally called at driver initialization time, 169 * but may also be called MUCH earlier during kernel "command-line" 170 * parameter processing. As such, we cannot depend on any other parts 171 * of the kernel (such as memory allocation) to be functioning yet. 172 * 173 * This is too bad, as otherwise we could dynamically allocate the 174 * ide_drive_t structs as needed, rather than always consuming memory 175 * for the max possible number (MAX_HWIFS * MAX_DRIVES) of them. 176 * 177 * FIXME: We should stuff the setup data into __init and copy the 178 * relevant hwifs/allocate them properly during boot. 179 */ 180#define MAGIC_COOKIE 0x12345678 181static void __init init_ide_data (void) 182{ 183 unsigned int index; 184 static unsigned long magic_cookie = MAGIC_COOKIE; 185 186 if (magic_cookie != MAGIC_COOKIE) 187 return; /* already initialized */ 188 magic_cookie = 0; 189 190 /* Initialise all interface structures */ 191 for (index = 0; index < MAX_HWIFS; ++index) { 192 ide_hwif_t *hwif = &ide_hwifs[index]; 193 194 ide_init_port_data(hwif, index); 195 } 196} 197 198/** 199 * ide_system_bus_speed - guess bus speed 200 * 201 * ide_system_bus_speed() returns what we think is the system VESA/PCI 202 * bus speed (in MHz). This is used for calculating interface PIO timings. 203 * The default is 40 for known PCI systems, 50 otherwise. 204 * The "idebus=xx" parameter can be used to override this value. 205 * The actual value to be used is computed/displayed the first time 206 * through. Drivers should only use this as a last resort. 207 * 208 * Returns a guessed speed in MHz. 209 */ 210 211static int ide_system_bus_speed(void) 212{ 213#ifdef CONFIG_PCI 214 static struct pci_device_id pci_default[] = { 215 { PCI_DEVICE(PCI_ANY_ID, PCI_ANY_ID) }, 216 { } 217 }; 218#else 219#define pci_default 0 220#endif /* CONFIG_PCI */ 221 222 /* user supplied value */ 223 if (idebus_parameter) 224 return idebus_parameter; 225 226 /* safe default value for PCI or VESA and PCI*/ 227 return pci_dev_present(pci_default) ? 33 : 50; 228} 229 230static struct resource* hwif_request_region(ide_hwif_t *hwif, 231 unsigned long addr, int num) 232{ 233 struct resource *res = request_region(addr, num, hwif->name); 234 235 if (!res) 236 printk(KERN_ERR "%s: I/O resource 0x%lX-0x%lX not free.\n", 237 hwif->name, addr, addr+num-1); 238 return res; 239} 240 241/** 242 * ide_hwif_request_regions - request resources for IDE 243 * @hwif: interface to use 244 * 245 * Requests all the needed resources for an interface. 246 * Right now core IDE code does this work which is deeply wrong. 247 * MMIO leaves it to the controller driver, 248 * PIO will migrate this way over time. 249 */ 250 251int ide_hwif_request_regions(ide_hwif_t *hwif) 252{ 253 unsigned long addr; 254 unsigned int i; 255 256 if (hwif->mmio) 257 return 0; 258 addr = hwif->io_ports[IDE_CONTROL_OFFSET]; 259 if (addr && !hwif_request_region(hwif, addr, 1)) 260 goto control_region_busy; 261 hwif->straight8 = 0; 262 addr = hwif->io_ports[IDE_DATA_OFFSET]; 263 if ((addr | 7) == hwif->io_ports[IDE_STATUS_OFFSET]) { 264 if (!hwif_request_region(hwif, addr, 8)) 265 goto data_region_busy; 266 hwif->straight8 = 1; 267 return 0; 268 } 269 for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) { 270 addr = hwif->io_ports[i]; 271 if (!hwif_request_region(hwif, addr, 1)) { 272 while (--i) 273 release_region(addr, 1); 274 goto data_region_busy; 275 } 276 } 277 return 0; 278 279data_region_busy: 280 addr = hwif->io_ports[IDE_CONTROL_OFFSET]; 281 if (addr) 282 release_region(addr, 1); 283control_region_busy: 284 /* If any errors are return, we drop the hwif interface. */ 285 return -EBUSY; 286} 287 288/** 289 * ide_hwif_release_regions - free IDE resources 290 * 291 * Note that we only release the standard ports, 292 * and do not even try to handle any extra ports 293 * allocated for weird IDE interface chipsets. 294 * 295 * Note also that we don't yet handle mmio resources here. More 296 * importantly our caller should be doing this so we need to 297 * restructure this as a helper function for drivers. 298 */ 299 300void ide_hwif_release_regions(ide_hwif_t *hwif) 301{ 302 u32 i = 0; 303 304 if (hwif->mmio) 305 return; 306 if (hwif->io_ports[IDE_CONTROL_OFFSET]) 307 release_region(hwif->io_ports[IDE_CONTROL_OFFSET], 1); 308 if (hwif->straight8) { 309 release_region(hwif->io_ports[IDE_DATA_OFFSET], 8); 310 return; 311 } 312 for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) 313 if (hwif->io_ports[i]) 314 release_region(hwif->io_ports[i], 1); 315} 316 317void ide_remove_port_from_hwgroup(ide_hwif_t *hwif) 318{ 319 ide_hwgroup_t *hwgroup = hwif->hwgroup; 320 321 spin_lock_irq(&ide_lock); 322 /* 323 * Remove us from the hwgroup, and free 324 * the hwgroup if we were the only member 325 */ 326 if (hwif->next == hwif) { 327 BUG_ON(hwgroup->hwif != hwif); 328 kfree(hwgroup); 329 } else { 330 /* There is another interface in hwgroup. 331 * Unlink us, and set hwgroup->drive and ->hwif to 332 * something sane. 333 */ 334 ide_hwif_t *g = hwgroup->hwif; 335 336 while (g->next != hwif) 337 g = g->next; 338 g->next = hwif->next; 339 if (hwgroup->hwif == hwif) { 340 /* Chose a random hwif for hwgroup->hwif. 341 * It's guaranteed that there are no drives 342 * left in the hwgroup. 343 */ 344 BUG_ON(hwgroup->drive != NULL); 345 hwgroup->hwif = g; 346 } 347 BUG_ON(hwgroup->hwif == hwif); 348 } 349 spin_unlock_irq(&ide_lock); 350} 351 352/* Called with ide_lock held. */ 353static void __ide_port_unregister_devices(ide_hwif_t *hwif) 354{ 355 int i; 356 357 for (i = 0; i < MAX_DRIVES; i++) { 358 ide_drive_t *drive = &hwif->drives[i]; 359 360 if (drive->present) { 361 spin_unlock_irq(&ide_lock); 362 device_unregister(&drive->gendev); 363 wait_for_completion(&drive->gendev_rel_comp); 364 spin_lock_irq(&ide_lock); 365 } 366 } 367} 368 369void ide_port_unregister_devices(ide_hwif_t *hwif) 370{ 371 mutex_lock(&ide_cfg_mtx); 372 spin_lock_irq(&ide_lock); 373 __ide_port_unregister_devices(hwif); 374 hwif->present = 0; 375 ide_port_init_devices_data(hwif); 376 spin_unlock_irq(&ide_lock); 377 mutex_unlock(&ide_cfg_mtx); 378} 379EXPORT_SYMBOL_GPL(ide_port_unregister_devices); 380 381/** 382 * ide_unregister - free an IDE interface 383 * @index: index of interface (will change soon to a pointer) 384 * 385 * Perform the final unregister of an IDE interface. At the moment 386 * we don't refcount interfaces so this will also get split up. 387 * 388 * Locking: 389 * The caller must not hold the IDE locks 390 * The drive present/vanishing is not yet properly locked 391 * Take care with the callbacks. These have been split to avoid 392 * deadlocking the IDE layer. The shutdown callback is called 393 * before we take the lock and free resources. It is up to the 394 * caller to be sure there is no pending I/O here, and that 395 * the interface will not be reopened (present/vanishing locking 396 * isn't yet done BTW). After we commit to the final kill we 397 * call the cleanup callback with the ide locks held. 398 * 399 * Unregister restores the hwif structures to the default state. 400 * This is raving bonkers. 401 */ 402 403void ide_unregister(unsigned int index) 404{ 405 ide_hwif_t *hwif, *g; 406 ide_hwgroup_t *hwgroup; 407 int irq_count = 0; 408 409 BUG_ON(index >= MAX_HWIFS); 410 411 BUG_ON(in_interrupt()); 412 BUG_ON(irqs_disabled()); 413 mutex_lock(&ide_cfg_mtx); 414 spin_lock_irq(&ide_lock); 415 hwif = &ide_hwifs[index]; 416 if (!hwif->present) 417 goto abort; 418 __ide_port_unregister_devices(hwif); 419 hwif->present = 0; 420 421 spin_unlock_irq(&ide_lock); 422 423 ide_proc_unregister_port(hwif); 424 425 hwgroup = hwif->hwgroup; 426 /* 427 * free the irq if we were the only hwif using it 428 */ 429 g = hwgroup->hwif; 430 do { 431 if (g->irq == hwif->irq) 432 ++irq_count; 433 g = g->next; 434 } while (g != hwgroup->hwif); 435 if (irq_count == 1) 436 free_irq(hwif->irq, hwgroup); 437 438 ide_remove_port_from_hwgroup(hwif); 439 440 device_unregister(hwif->portdev); 441 device_unregister(&hwif->gendev); 442 wait_for_completion(&hwif->gendev_rel_comp); 443 444 /* 445 * Remove us from the kernel's knowledge 446 */ 447 blk_unregister_region(MKDEV(hwif->major, 0), MAX_DRIVES<<PARTN_BITS); 448 kfree(hwif->sg_table); 449 unregister_blkdev(hwif->major, hwif->name); 450 spin_lock_irq(&ide_lock); 451 452 if (hwif->dma_base) 453 (void)ide_release_dma(hwif); 454 455 ide_hwif_release_regions(hwif); 456 457 /* restore hwif data to pristine status */ 458 ide_init_port_data(hwif, index); 459 460abort: 461 spin_unlock_irq(&ide_lock); 462 mutex_unlock(&ide_cfg_mtx); 463} 464 465EXPORT_SYMBOL(ide_unregister); 466 467void ide_init_port_hw(ide_hwif_t *hwif, hw_regs_t *hw) 468{ 469 memcpy(hwif->io_ports, hw->io_ports, sizeof(hwif->io_ports)); 470 hwif->irq = hw->irq; 471 hwif->noprobe = 0; 472 hwif->chipset = hw->chipset; 473 hwif->gendev.parent = hw->dev; 474 hwif->ack_intr = hw->ack_intr; 475} 476EXPORT_SYMBOL_GPL(ide_init_port_hw); 477 478/* 479 * Locks for IDE setting functionality 480 */ 481 482DEFINE_MUTEX(ide_setting_mtx); 483 484EXPORT_SYMBOL_GPL(ide_setting_mtx); 485 486/** 487 * ide_spin_wait_hwgroup - wait for group 488 * @drive: drive in the group 489 * 490 * Wait for an IDE device group to go non busy and then return 491 * holding the ide_lock which guards the hwgroup->busy status 492 * and right to use it. 493 */ 494 495int ide_spin_wait_hwgroup (ide_drive_t *drive) 496{ 497 ide_hwgroup_t *hwgroup = HWGROUP(drive); 498 unsigned long timeout = jiffies + (3 * HZ); 499 500 spin_lock_irq(&ide_lock); 501 502 while (hwgroup->busy) { 503 unsigned long lflags; 504 spin_unlock_irq(&ide_lock); 505 local_irq_set(lflags); 506 if (time_after(jiffies, timeout)) { 507 local_irq_restore(lflags); 508 printk(KERN_ERR "%s: channel busy\n", drive->name); 509 return -EBUSY; 510 } 511 local_irq_restore(lflags); 512 spin_lock_irq(&ide_lock); 513 } 514 return 0; 515} 516 517EXPORT_SYMBOL(ide_spin_wait_hwgroup); 518 519int set_io_32bit(ide_drive_t *drive, int arg) 520{ 521 if (drive->no_io_32bit) 522 return -EPERM; 523 524 if (arg < 0 || arg > 1 + (SUPPORT_VLB_SYNC << 1)) 525 return -EINVAL; 526 527 if (ide_spin_wait_hwgroup(drive)) 528 return -EBUSY; 529 530 drive->io_32bit = arg; 531 532 spin_unlock_irq(&ide_lock); 533 534 return 0; 535} 536 537static int set_ksettings(ide_drive_t *drive, int arg) 538{ 539 if (arg < 0 || arg > 1) 540 return -EINVAL; 541 542 if (ide_spin_wait_hwgroup(drive)) 543 return -EBUSY; 544 drive->keep_settings = arg; 545 spin_unlock_irq(&ide_lock); 546 547 return 0; 548} 549 550int set_using_dma(ide_drive_t *drive, int arg) 551{ 552#ifdef CONFIG_BLK_DEV_IDEDMA 553 ide_hwif_t *hwif = drive->hwif; 554 int err = -EPERM; 555 556 if (arg < 0 || arg > 1) 557 return -EINVAL; 558 559 if (!drive->id || !(drive->id->capability & 1)) 560 goto out; 561 562 if (hwif->dma_host_set == NULL) 563 goto out; 564 565 err = -EBUSY; 566 if (ide_spin_wait_hwgroup(drive)) 567 goto out; 568 /* 569 * set ->busy flag, unlock and let it ride 570 */ 571 hwif->hwgroup->busy = 1; 572 spin_unlock_irq(&ide_lock); 573 574 err = 0; 575 576 if (arg) { 577 if (ide_set_dma(drive)) 578 err = -EIO; 579 } else 580 ide_dma_off(drive); 581 582 /* 583 * lock, clear ->busy flag and unlock before leaving 584 */ 585 spin_lock_irq(&ide_lock); 586 hwif->hwgroup->busy = 0; 587 spin_unlock_irq(&ide_lock); 588out: 589 return err; 590#else 591 if (arg < 0 || arg > 1) 592 return -EINVAL; 593 594 return -EPERM; 595#endif 596} 597 598int set_pio_mode(ide_drive_t *drive, int arg) 599{ 600 struct request rq; 601 602 if (arg < 0 || arg > 255) 603 return -EINVAL; 604 605 if (drive->hwif->set_pio_mode == NULL) 606 return -ENOSYS; 607 608 if (drive->special.b.set_tune) 609 return -EBUSY; 610 611 ide_init_drive_cmd(&rq); 612 rq.cmd_type = REQ_TYPE_ATA_TASKFILE; 613 614 drive->tune_req = (u8) arg; 615 drive->special.b.set_tune = 1; 616 (void) ide_do_drive_cmd(drive, &rq, ide_wait); 617 return 0; 618} 619 620static int set_unmaskirq(ide_drive_t *drive, int arg) 621{ 622 if (drive->no_unmask) 623 return -EPERM; 624 625 if (arg < 0 || arg > 1) 626 return -EINVAL; 627 628 if (ide_spin_wait_hwgroup(drive)) 629 return -EBUSY; 630 drive->unmask = arg; 631 spin_unlock_irq(&ide_lock); 632 633 return 0; 634} 635 636/** 637 * system_bus_clock - clock guess 638 * 639 * External version of the bus clock guess used by very old IDE drivers 640 * for things like VLB timings. Should not be used. 641 */ 642 643int system_bus_clock (void) 644{ 645 return system_bus_speed; 646} 647 648EXPORT_SYMBOL(system_bus_clock); 649 650static int generic_ide_suspend(struct device *dev, pm_message_t mesg) 651{ 652 ide_drive_t *drive = dev->driver_data; 653 ide_hwif_t *hwif = HWIF(drive); 654 struct request rq; 655 struct request_pm_state rqpm; 656 ide_task_t args; 657 int ret; 658 659 /* Call ACPI _GTM only once */ 660 if (!(drive->dn % 2)) 661 ide_acpi_get_timing(hwif); 662 663 memset(&rq, 0, sizeof(rq)); 664 memset(&rqpm, 0, sizeof(rqpm)); 665 memset(&args, 0, sizeof(args)); 666 rq.cmd_type = REQ_TYPE_PM_SUSPEND; 667 rq.special = &args; 668 rq.data = &rqpm; 669 rqpm.pm_step = ide_pm_state_start_suspend; 670 if (mesg.event == PM_EVENT_PRETHAW) 671 mesg.event = PM_EVENT_FREEZE; 672 rqpm.pm_state = mesg.event; 673 674 ret = ide_do_drive_cmd(drive, &rq, ide_wait); 675 /* only call ACPI _PS3 after both drivers are suspended */ 676 if (!ret && (((drive->dn % 2) && hwif->drives[0].present 677 && hwif->drives[1].present) 678 || !hwif->drives[0].present 679 || !hwif->drives[1].present)) 680 ide_acpi_set_state(hwif, 0); 681 return ret; 682} 683 684static int generic_ide_resume(struct device *dev) 685{ 686 ide_drive_t *drive = dev->driver_data; 687 ide_hwif_t *hwif = HWIF(drive); 688 struct request rq; 689 struct request_pm_state rqpm; 690 ide_task_t args; 691 int err; 692 693 /* Call ACPI _STM only once */ 694 if (!(drive->dn % 2)) { 695 ide_acpi_set_state(hwif, 1); 696 ide_acpi_push_timing(hwif); 697 } 698 699 ide_acpi_exec_tfs(drive); 700 701 memset(&rq, 0, sizeof(rq)); 702 memset(&rqpm, 0, sizeof(rqpm)); 703 memset(&args, 0, sizeof(args)); 704 rq.cmd_type = REQ_TYPE_PM_RESUME; 705 rq.special = &args; 706 rq.data = &rqpm; 707 rqpm.pm_step = ide_pm_state_start_resume; 708 rqpm.pm_state = PM_EVENT_ON; 709 710 err = ide_do_drive_cmd(drive, &rq, ide_head_wait); 711 712 if (err == 0 && dev->driver) { 713 ide_driver_t *drv = to_ide_driver(dev->driver); 714 715 if (drv->resume) 716 drv->resume(drive); 717 } 718 719 return err; 720} 721 722int generic_ide_ioctl(ide_drive_t *drive, struct file *file, struct block_device *bdev, 723 unsigned int cmd, unsigned long arg) 724{ 725 unsigned long flags; 726 ide_driver_t *drv; 727 void __user *p = (void __user *)arg; 728 int err = 0, (*setfunc)(ide_drive_t *, int); 729 u8 *val; 730 731 switch (cmd) { 732 case HDIO_GET_32BIT: val = &drive->io_32bit; goto read_val; 733 case HDIO_GET_KEEPSETTINGS: val = &drive->keep_settings; goto read_val; 734 case HDIO_GET_UNMASKINTR: val = &drive->unmask; goto read_val; 735 case HDIO_GET_DMA: val = &drive->using_dma; goto read_val; 736 case HDIO_SET_32BIT: setfunc = set_io_32bit; goto set_val; 737 case HDIO_SET_KEEPSETTINGS: setfunc = set_ksettings; goto set_val; 738 case HDIO_SET_PIO_MODE: setfunc = set_pio_mode; goto set_val; 739 case HDIO_SET_UNMASKINTR: setfunc = set_unmaskirq; goto set_val; 740 case HDIO_SET_DMA: setfunc = set_using_dma; goto set_val; 741 } 742 743 switch (cmd) { 744 case HDIO_OBSOLETE_IDENTITY: 745 case HDIO_GET_IDENTITY: 746 if (bdev != bdev->bd_contains) 747 return -EINVAL; 748 if (drive->id_read == 0) 749 return -ENOMSG; 750 if (copy_to_user(p, drive->id, (cmd == HDIO_GET_IDENTITY) ? sizeof(*drive->id) : 142)) 751 return -EFAULT; 752 return 0; 753 754 case HDIO_GET_NICE: 755 return put_user(drive->dsc_overlap << IDE_NICE_DSC_OVERLAP | 756 drive->atapi_overlap << IDE_NICE_ATAPI_OVERLAP | 757 drive->nice1 << IDE_NICE_1, 758 (long __user *) arg); 759#ifdef CONFIG_IDE_TASK_IOCTL 760 case HDIO_DRIVE_TASKFILE: 761 if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SYS_RAWIO)) 762 return -EACCES; 763 switch(drive->media) { 764 case ide_disk: 765 return ide_taskfile_ioctl(drive, cmd, arg); 766 default: 767 return -ENOMSG; 768 } 769#endif /* CONFIG_IDE_TASK_IOCTL */ 770 771 case HDIO_DRIVE_CMD: 772 if (!capable(CAP_SYS_RAWIO)) 773 return -EACCES; 774 return ide_cmd_ioctl(drive, cmd, arg); 775 776 case HDIO_DRIVE_TASK: 777 if (!capable(CAP_SYS_RAWIO)) 778 return -EACCES; 779 return ide_task_ioctl(drive, cmd, arg); 780 case HDIO_SET_NICE: 781 if (!capable(CAP_SYS_ADMIN)) return -EACCES; 782 if (arg != (arg & ((1 << IDE_NICE_DSC_OVERLAP) | (1 << IDE_NICE_1)))) 783 return -EPERM; 784 drive->dsc_overlap = (arg >> IDE_NICE_DSC_OVERLAP) & 1; 785 drv = *(ide_driver_t **)bdev->bd_disk->private_data; 786 if (drive->dsc_overlap && !drv->supports_dsc_overlap) { 787 drive->dsc_overlap = 0; 788 return -EPERM; 789 } 790 drive->nice1 = (arg >> IDE_NICE_1) & 1; 791 return 0; 792 case HDIO_DRIVE_RESET: 793 if (!capable(CAP_SYS_ADMIN)) 794 return -EACCES; 795 796 /* 797 * Abort the current command on the 798 * group if there is one, taking 799 * care not to allow anything else 800 * to be queued and to die on the 801 * spot if we miss one somehow 802 */ 803 804 spin_lock_irqsave(&ide_lock, flags); 805 806 if (HWGROUP(drive)->resetting) { 807 spin_unlock_irqrestore(&ide_lock, flags); 808 return -EBUSY; 809 } 810 811 ide_abort(drive, "drive reset"); 812 813 BUG_ON(HWGROUP(drive)->handler); 814 815 /* Ensure nothing gets queued after we 816 drop the lock. Reset will clear the busy */ 817 818 HWGROUP(drive)->busy = 1; 819 spin_unlock_irqrestore(&ide_lock, flags); 820 (void) ide_do_reset(drive); 821 822 return 0; 823 case HDIO_GET_BUSSTATE: 824 if (!capable(CAP_SYS_ADMIN)) 825 return -EACCES; 826 if (put_user(HWIF(drive)->bus_state, (long __user *)arg)) 827 return -EFAULT; 828 return 0; 829 830 case HDIO_SET_BUSSTATE: 831 if (!capable(CAP_SYS_ADMIN)) 832 return -EACCES; 833 return -EOPNOTSUPP; 834 default: 835 return -EINVAL; 836 } 837 838read_val: 839 mutex_lock(&ide_setting_mtx); 840 spin_lock_irqsave(&ide_lock, flags); 841 err = *val; 842 spin_unlock_irqrestore(&ide_lock, flags); 843 mutex_unlock(&ide_setting_mtx); 844 return err >= 0 ? put_user(err, (long __user *)arg) : err; 845 846set_val: 847 if (bdev != bdev->bd_contains) 848 err = -EINVAL; 849 else { 850 if (!capable(CAP_SYS_ADMIN)) 851 err = -EACCES; 852 else { 853 mutex_lock(&ide_setting_mtx); 854 err = setfunc(drive, arg); 855 mutex_unlock(&ide_setting_mtx); 856 } 857 } 858 return err; 859} 860 861EXPORT_SYMBOL(generic_ide_ioctl); 862 863/* 864 * stridx() returns the offset of c within s, 865 * or -1 if c is '\0' or not found within s. 866 */ 867static int __init stridx (const char *s, char c) 868{ 869 char *i = strchr(s, c); 870 return (i && c) ? i - s : -1; 871} 872 873/* 874 * match_parm() does parsing for ide_setup(): 875 * 876 * 1. the first char of s must be '='. 877 * 2. if the remainder matches one of the supplied keywords, 878 * the index (1 based) of the keyword is negated and returned. 879 * 3. if the remainder is a series of no more than max_vals numbers 880 * separated by commas, the numbers are saved in vals[] and a 881 * count of how many were saved is returned. Base10 is assumed, 882 * and base16 is allowed when prefixed with "0x". 883 * 4. otherwise, zero is returned. 884 */ 885static int __init match_parm (char *s, const char *keywords[], int vals[], int max_vals) 886{ 887 static const char *decimal = "0123456789"; 888 static const char *hex = "0123456789abcdef"; 889 int i, n; 890 891 if (*s++ == '=') { 892 /* 893 * Try matching against the supplied keywords, 894 * and return -(index+1) if we match one 895 */ 896 if (keywords != NULL) { 897 for (i = 0; *keywords != NULL; ++i) { 898 if (!strcmp(s, *keywords++)) 899 return -(i+1); 900 } 901 } 902 /* 903 * Look for a series of no more than "max_vals" 904 * numeric values separated by commas, in base10, 905 * or base16 when prefixed with "0x". 906 * Return a count of how many were found. 907 */ 908 for (n = 0; (i = stridx(decimal, *s)) >= 0;) { 909 vals[n] = i; 910 while ((i = stridx(decimal, *++s)) >= 0) 911 vals[n] = (vals[n] * 10) + i; 912 if (*s == 'x' && !vals[n]) { 913 while ((i = stridx(hex, *++s)) >= 0) 914 vals[n] = (vals[n] * 0x10) + i; 915 } 916 if (++n == max_vals) 917 break; 918 if (*s == ',' || *s == ';') 919 ++s; 920 } 921 if (!*s) 922 return n; 923 } 924 return 0; /* zero = nothing matched */ 925} 926 927extern int probe_ali14xx; 928extern int probe_umc8672; 929extern int probe_dtc2278; 930extern int probe_ht6560b; 931extern int probe_qd65xx; 932extern int cmd640_vlb; 933extern int probe_4drives; 934 935static int __initdata is_chipset_set; 936 937/* 938 * ide_setup() gets called VERY EARLY during initialization, 939 * to handle kernel "command line" strings beginning with "hdx=" or "ide". 940 * 941 * Remember to update Documentation/ide/ide.txt if you change something here. 942 */ 943static int __init ide_setup(char *s) 944{ 945 int i, vals[3]; 946 ide_hwif_t *hwif; 947 ide_drive_t *drive; 948 unsigned int hw, unit; 949 const char max_drive = 'a' + ((MAX_HWIFS * MAX_DRIVES) - 1); 950 const char max_hwif = '0' + (MAX_HWIFS - 1); 951 952 953 if (strncmp(s,"hd",2) == 0 && s[2] == '=') /* hd= is for hd.c */ 954 return 0; /* driver and not us */ 955 956 if (strncmp(s,"ide",3) && strncmp(s,"idebus",6) && strncmp(s,"hd",2)) 957 return 0; 958 959 printk(KERN_INFO "ide_setup: %s", s); 960 init_ide_data (); 961 962#ifdef CONFIG_BLK_DEV_IDEDOUBLER 963 if (!strcmp(s, "ide=doubler")) { 964 extern int ide_doubler; 965 966 printk(" : Enabled support for IDE doublers\n"); 967 ide_doubler = 1; 968 return 1; 969 } 970#endif /* CONFIG_BLK_DEV_IDEDOUBLER */ 971 972 if (!strcmp(s, "ide=nodma")) { 973 printk(" : Prevented DMA\n"); 974 noautodma = 1; 975 goto obsolete_option; 976 } 977 978#ifdef CONFIG_BLK_DEV_IDEACPI 979 if (!strcmp(s, "ide=noacpi")) { 980 //printk(" : Disable IDE ACPI support.\n"); 981 ide_noacpi = 1; 982 return 1; 983 } 984 if (!strcmp(s, "ide=acpigtf")) { 985 //printk(" : Enable IDE ACPI _GTF support.\n"); 986 ide_noacpitfs = 0; 987 return 1; 988 } 989 if (!strcmp(s, "ide=acpionboot")) { 990 //printk(" : Call IDE ACPI methods on boot.\n"); 991 ide_noacpionboot = 0; 992 return 1; 993 } 994#endif /* CONFIG_BLK_DEV_IDEACPI */ 995 996 /* 997 * Look for drive options: "hdx=" 998 */ 999 if (s[0] == 'h' && s[1] == 'd' && s[2] >= 'a' && s[2] <= max_drive) { 1000 const char *hd_words[] = { 1001 "none", "noprobe", "nowerr", "cdrom", "nodma", 1002 "autotune", "noautotune", "-8", "-9", "-10", 1003 "noflush", "remap", "remap63", "scsi", NULL }; 1004 unit = s[2] - 'a'; 1005 hw = unit / MAX_DRIVES; 1006 unit = unit % MAX_DRIVES; 1007 hwif = &ide_hwifs[hw]; 1008 drive = &hwif->drives[unit]; 1009 if (strncmp(s + 4, "ide-", 4) == 0) { 1010 strlcpy(drive->driver_req, s + 4, sizeof(drive->driver_req)); 1011 goto obsolete_option; 1012 } 1013 switch (match_parm(&s[3], hd_words, vals, 3)) { 1014 case -1: /* "none" */ 1015 case -2: /* "noprobe" */ 1016 drive->noprobe = 1; 1017 goto done; 1018 case -3: /* "nowerr" */ 1019 drive->bad_wstat = BAD_R_STAT; 1020 hwif->noprobe = 0; 1021 goto done; 1022 case -4: /* "cdrom" */ 1023 drive->present = 1; 1024 drive->media = ide_cdrom; 1025 /* an ATAPI device ignores DRDY */ 1026 drive->ready_stat = 0; 1027 hwif->noprobe = 0; 1028 goto done; 1029 case -5: /* nodma */ 1030 drive->nodma = 1; 1031 goto done; 1032 case -6: /* "autotune" */ 1033 drive->autotune = IDE_TUNE_AUTO; 1034 goto obsolete_option; 1035 case -7: /* "noautotune" */ 1036 drive->autotune = IDE_TUNE_NOAUTO; 1037 goto obsolete_option; 1038 case -11: /* noflush */ 1039 drive->noflush = 1; 1040 goto done; 1041 case -12: /* "remap" */ 1042 drive->remap_0_to_1 = 1; 1043 goto obsolete_option; 1044 case -13: /* "remap63" */ 1045 drive->sect0 = 63; 1046 goto obsolete_option; 1047 case -14: /* "scsi" */ 1048 drive->scsi = 1; 1049 goto obsolete_option; 1050 case 3: /* cyl,head,sect */ 1051 drive->media = ide_disk; 1052 drive->ready_stat = READY_STAT; 1053 drive->cyl = drive->bios_cyl = vals[0]; 1054 drive->head = drive->bios_head = vals[1]; 1055 drive->sect = drive->bios_sect = vals[2]; 1056 drive->present = 1; 1057 drive->forced_geom = 1; 1058 hwif->noprobe = 0; 1059 goto done; 1060 default: 1061 goto bad_option; 1062 } 1063 } 1064 1065 if (s[0] != 'i' || s[1] != 'd' || s[2] != 'e') 1066 goto bad_option; 1067 /* 1068 * Look for bus speed option: "idebus=" 1069 */ 1070 if (s[3] == 'b' && s[4] == 'u' && s[5] == 's') { 1071 if (match_parm(&s[6], NULL, vals, 1) != 1) 1072 goto bad_option; 1073 if (vals[0] >= 20 && vals[0] <= 66) { 1074 idebus_parameter = vals[0]; 1075 } else 1076 printk(" -- BAD BUS SPEED! Expected value from 20 to 66"); 1077 goto done; 1078 } 1079 /* 1080 * Look for interface options: "idex=" 1081 */ 1082 if (s[3] >= '0' && s[3] <= max_hwif) { 1083 /* 1084 * Be VERY CAREFUL changing this: note hardcoded indexes below 1085 * (-8, -9, -10) are reserved to ease the hardcoding. 1086 */ 1087 static const char *ide_words[] = { 1088 "minus1", "serialize", "minus3", "minus4", 1089 "reset", "minus6", "ata66", "minus8", "minus9", 1090 "minus10", "four", "qd65xx", "ht6560b", "cmd640_vlb", 1091 "dtc2278", "umc8672", "ali14xx", NULL }; 1092 1093 hw = s[3] - '0'; 1094 hwif = &ide_hwifs[hw]; 1095 i = match_parm(&s[4], ide_words, vals, 3); 1096 1097 /* 1098 * Cryptic check to ensure chipset not already set for hwif. 1099 * Note: we can't depend on hwif->chipset here. 1100 */ 1101 if (i >= -18 && i <= -11) { 1102 /* chipset already specified */ 1103 if (is_chipset_set) 1104 goto bad_option; 1105 /* these drivers are for "ide0=" only */ 1106 if (hw != 0) 1107 goto bad_hwif; 1108 is_chipset_set = 1; 1109 printk("\n"); 1110 } 1111 1112 switch (i) { 1113#ifdef CONFIG_BLK_DEV_ALI14XX 1114 case -17: /* "ali14xx" */ 1115 probe_ali14xx = 1; 1116 goto obsolete_option; 1117#endif 1118#ifdef CONFIG_BLK_DEV_UMC8672 1119 case -16: /* "umc8672" */ 1120 probe_umc8672 = 1; 1121 goto obsolete_option; 1122#endif 1123#ifdef CONFIG_BLK_DEV_DTC2278 1124 case -15: /* "dtc2278" */ 1125 probe_dtc2278 = 1; 1126 goto obsolete_option; 1127#endif 1128#ifdef CONFIG_BLK_DEV_CMD640 1129 case -14: /* "cmd640_vlb" */ 1130 cmd640_vlb = 1; 1131 goto obsolete_option; 1132#endif 1133#ifdef CONFIG_BLK_DEV_HT6560B 1134 case -13: /* "ht6560b" */ 1135 probe_ht6560b = 1; 1136 goto obsolete_option; 1137#endif 1138#ifdef CONFIG_BLK_DEV_QD65XX 1139 case -12: /* "qd65xx" */ 1140 probe_qd65xx = 1; 1141 goto obsolete_option; 1142#endif 1143#ifdef CONFIG_BLK_DEV_4DRIVES 1144 case -11: /* "four" drives on one set of ports */ 1145 probe_4drives = 1; 1146 goto obsolete_option; 1147#endif 1148 case -10: /* minus10 */ 1149 case -9: /* minus9 */ 1150 case -8: /* minus8 */ 1151 case -6: 1152 case -4: 1153 case -3: 1154 goto bad_option; 1155 case -7: /* ata66 */ 1156#ifdef CONFIG_BLK_DEV_IDEPCI 1157 /* 1158 * Use ATA_CBL_PATA40_SHORT so drive side 1159 * cable detection is also overriden. 1160 */ 1161 hwif->cbl = ATA_CBL_PATA40_SHORT; 1162 goto obsolete_option; 1163#else 1164 goto bad_hwif; 1165#endif 1166 case -5: /* "reset" */ 1167 hwif->reset = 1; 1168 goto obsolete_option; 1169 case -2: /* "serialize" */ 1170 hwif->mate = &ide_hwifs[hw^1]; 1171 hwif->mate->mate = hwif; 1172 hwif->serialized = hwif->mate->serialized = 1; 1173 goto obsolete_option; 1174 1175 case -1: 1176 case 0: 1177 case 1: 1178 case 2: 1179 case 3: 1180 goto bad_option; 1181 default: 1182 printk(" -- SUPPORT NOT CONFIGURED IN THIS KERNEL\n"); 1183 return 1; 1184 } 1185 } 1186bad_option: 1187 printk(" -- BAD OPTION\n"); 1188 return 1; 1189obsolete_option: 1190 printk(" -- OBSOLETE OPTION, WILL BE REMOVED SOON!\n"); 1191 return 1; 1192bad_hwif: 1193 printk("-- NOT SUPPORTED ON ide%d", hw); 1194done: 1195 printk("\n"); 1196 return 1; 1197} 1198 1199EXPORT_SYMBOL(ide_lock); 1200 1201static int ide_bus_match(struct device *dev, struct device_driver *drv) 1202{ 1203 return 1; 1204} 1205 1206static char *media_string(ide_drive_t *drive) 1207{ 1208 switch (drive->media) { 1209 case ide_disk: 1210 return "disk"; 1211 case ide_cdrom: 1212 return "cdrom"; 1213 case ide_tape: 1214 return "tape"; 1215 case ide_floppy: 1216 return "floppy"; 1217 case ide_optical: 1218 return "optical"; 1219 default: 1220 return "UNKNOWN"; 1221 } 1222} 1223 1224static ssize_t media_show(struct device *dev, struct device_attribute *attr, char *buf) 1225{ 1226 ide_drive_t *drive = to_ide_device(dev); 1227 return sprintf(buf, "%s\n", media_string(drive)); 1228} 1229 1230static ssize_t drivename_show(struct device *dev, struct device_attribute *attr, char *buf) 1231{ 1232 ide_drive_t *drive = to_ide_device(dev); 1233 return sprintf(buf, "%s\n", drive->name); 1234} 1235 1236static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf) 1237{ 1238 ide_drive_t *drive = to_ide_device(dev); 1239 return sprintf(buf, "ide:m-%s\n", media_string(drive)); 1240} 1241 1242static ssize_t model_show(struct device *dev, struct device_attribute *attr, 1243 char *buf) 1244{ 1245 ide_drive_t *drive = to_ide_device(dev); 1246 return sprintf(buf, "%s\n", drive->id->model); 1247} 1248 1249static ssize_t firmware_show(struct device *dev, struct device_attribute *attr, 1250 char *buf) 1251{ 1252 ide_drive_t *drive = to_ide_device(dev); 1253 return sprintf(buf, "%s\n", drive->id->fw_rev); 1254} 1255 1256static ssize_t serial_show(struct device *dev, struct device_attribute *attr, 1257 char *buf) 1258{ 1259 ide_drive_t *drive = to_ide_device(dev); 1260 return sprintf(buf, "%s\n", drive->id->serial_no); 1261} 1262 1263static struct device_attribute ide_dev_attrs[] = { 1264 __ATTR_RO(media), 1265 __ATTR_RO(drivename), 1266 __ATTR_RO(modalias), 1267 __ATTR_RO(model), 1268 __ATTR_RO(firmware), 1269 __ATTR(serial, 0400, serial_show, NULL), 1270 __ATTR_NULL 1271}; 1272 1273static int ide_uevent(struct device *dev, struct kobj_uevent_env *env) 1274{ 1275 ide_drive_t *drive = to_ide_device(dev); 1276 1277 add_uevent_var(env, "MEDIA=%s", media_string(drive)); 1278 add_uevent_var(env, "DRIVENAME=%s", drive->name); 1279 add_uevent_var(env, "MODALIAS=ide:m-%s", media_string(drive)); 1280 return 0; 1281} 1282 1283static int generic_ide_probe(struct device *dev) 1284{ 1285 ide_drive_t *drive = to_ide_device(dev); 1286 ide_driver_t *drv = to_ide_driver(dev->driver); 1287 1288 return drv->probe ? drv->probe(drive) : -ENODEV; 1289} 1290 1291static int generic_ide_remove(struct device *dev) 1292{ 1293 ide_drive_t *drive = to_ide_device(dev); 1294 ide_driver_t *drv = to_ide_driver(dev->driver); 1295 1296 if (drv->remove) 1297 drv->remove(drive); 1298 1299 return 0; 1300} 1301 1302static void generic_ide_shutdown(struct device *dev) 1303{ 1304 ide_drive_t *drive = to_ide_device(dev); 1305 ide_driver_t *drv = to_ide_driver(dev->driver); 1306 1307 if (dev->driver && drv->shutdown) 1308 drv->shutdown(drive); 1309} 1310 1311struct bus_type ide_bus_type = { 1312 .name = "ide", 1313 .match = ide_bus_match, 1314 .uevent = ide_uevent, 1315 .probe = generic_ide_probe, 1316 .remove = generic_ide_remove, 1317 .shutdown = generic_ide_shutdown, 1318 .dev_attrs = ide_dev_attrs, 1319 .suspend = generic_ide_suspend, 1320 .resume = generic_ide_resume, 1321}; 1322 1323EXPORT_SYMBOL_GPL(ide_bus_type); 1324 1325static void ide_port_class_release(struct device *portdev) 1326{ 1327 ide_hwif_t *hwif = dev_get_drvdata(portdev); 1328 1329 put_device(&hwif->gendev); 1330} 1331 1332/* 1333 * This is gets invoked once during initialization, to set *everything* up 1334 */ 1335static int __init ide_init(void) 1336{ 1337 int ret; 1338 1339 printk(KERN_INFO "Uniform Multi-Platform E-IDE driver\n"); 1340 system_bus_speed = ide_system_bus_speed(); 1341 1342 printk(KERN_INFO "ide: Assuming %dMHz system bus speed " 1343 "for PIO modes%s\n", system_bus_speed, 1344 idebus_parameter ? "" : "; override with idebus=xx"); 1345 1346 ret = bus_register(&ide_bus_type); 1347 if (ret < 0) { 1348 printk(KERN_WARNING "IDE: bus_register error: %d\n", ret); 1349 return ret; 1350 } 1351 1352 ide_port_class = class_create(THIS_MODULE, "ide_port"); 1353 if (IS_ERR(ide_port_class)) { 1354 ret = PTR_ERR(ide_port_class); 1355 goto out_port_class; 1356 } 1357 ide_port_class->dev_release = ide_port_class_release; 1358 1359 init_ide_data(); 1360 1361 proc_ide_create(); 1362 1363 return 0; 1364 1365out_port_class: 1366 bus_unregister(&ide_bus_type); 1367 1368 return ret; 1369} 1370 1371#ifdef MODULE 1372static char *options = NULL; 1373module_param(options, charp, 0); 1374MODULE_LICENSE("GPL"); 1375 1376static void __init parse_options (char *line) 1377{ 1378 char *next = line; 1379 1380 if (line == NULL || !*line) 1381 return; 1382 while ((line = next) != NULL) { 1383 if ((next = strchr(line,' ')) != NULL) 1384 *next++ = 0; 1385 if (!ide_setup(line)) 1386 printk (KERN_INFO "Unknown option '%s'\n", line); 1387 } 1388} 1389 1390int __init init_module (void) 1391{ 1392 parse_options(options); 1393 return ide_init(); 1394} 1395 1396void __exit cleanup_module (void) 1397{ 1398 int index; 1399 1400 for (index = 0; index < MAX_HWIFS; ++index) 1401 ide_unregister(index); 1402 1403 proc_ide_destroy(); 1404 1405 class_destroy(ide_port_class); 1406 1407 bus_unregister(&ide_bus_type); 1408} 1409 1410#else /* !MODULE */ 1411 1412__setup("", ide_setup); 1413 1414module_init(ide_init); 1415 1416#endif /* MODULE */ 1417