summaryrefslogtreecommitdiffstats
path: root/drivers/ide/ide-lib.c
blob: 562f5efae9c6226d51dd60c9636a171d554f33f7 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
#include <linux/module.h>
#include <linux/types.h>
#include <linux/string.h>
#include <linux/kernel.h>
#include <linux/timer.h>
#include <linux/mm.h>
#include <linux/interrupt.h>
#include <linux/major.h>
#include <linux/errno.h>
#include <linux/genhd.h>
#include <linux/blkpg.h>
#include <linux/slab.h>
#include <linux/pci.h>
#include <linux/delay.h>
#include <linux/hdreg.h>
#include <linux/ide.h>
#include <linux/bitops.h>

#include <asm/byteorder.h>
#include <asm/irq.h>
#include <asm/uaccess.h>
#include <asm/io.h>

/*
 *	IDE library routines. These are plug in code that most 
 *	drivers can use but occasionally may be weird enough
 *	to want to do their own thing with
 *
 *	Add common non I/O op stuff here. Make sure it has proper
 *	kernel-doc function headers or your patch will be rejected
 */

static const char *udma_str[] =
	 { "UDMA/16", "UDMA/25",  "UDMA/33",  "UDMA/44",
	   "UDMA/66", "UDMA/100", "UDMA/133", "UDMA7" };
static const char *mwdma_str[] =
	{ "MWDMA0", "MWDMA1", "MWDMA2" };
static const char *swdma_str[] =
	{ "SWDMA0", "SWDMA1", "SWDMA2" };
static const char *pio_str[] =
	{ "PIO0", "PIO1", "PIO2", "PIO3", "PIO4", "PIO5" };

/**
 *	ide_xfer_verbose	-	return IDE mode names
 *	@mode: transfer mode
 *
 *	Returns a constant string giving the name of the mode
 *	requested.
 */

const char *ide_xfer_verbose(u8 mode)
{
	const char *s;
	u8 i = mode & 0xf;

	if (mode >= XFER_UDMA_0 && mode <= XFER_UDMA_7)
		s = udma_str[i];
	else if (mode >= XFER_MW_DMA_0 && mode <= XFER_MW_DMA_2)
		s = mwdma_str[i];
	else if (mode >= XFER_SW_DMA_0 && mode <= XFER_SW_DMA_2)
		s = swdma_str[i];
	else if (mode >= XFER_PIO_0 && mode <= XFER_PIO_5)
		s = pio_str[i & 0x7];
	else if (mode == XFER_PIO_SLOW)
		s = "PIO SLOW";
	else
		s = "XFER ERROR";

	return s;
}

EXPORT_SYMBOL(ide_xfer_verbose);

/**
 *	ide_rate_filter		-	filter transfer mode
 *	@drive: IDE device
 *	@speed: desired speed
 *
 *	Given the available transfer modes this function returns
 *	the best available speed at or below the speed requested.
 *
 *	TODO: check device PIO capabilities
 */

static u8 ide_rate_filter(ide_drive_t *drive, u8 speed)
{
	ide_hwif_t *hwif = drive->hwif;
	u8 mode = ide_find_dma_mode(drive, speed);

	if (mode == 0) {
		if (hwif->pio_mask)
			mode = fls(hwif->pio_mask) - 1 + XFER_PIO_0;
		else
			mode = XFER_PIO_4;
	}

//	printk("%s: mode 0x%02x, speed 0x%02x\n", __FUNCTION__, mode, speed);

	return min(speed, mode);
}

/*
 * Standard (generic) timings for PIO modes, from ATA2 specification.
 * These timings are for access to the IDE data port register *only*.
 * Some drives may specify a mode, while also specifying a different
 * value for cycle_time (from drive identification data).
 */
const ide_pio_timings_t ide_pio_timings[6] = {
	{ 70,	165,	600 },	/* PIO Mode 0 */
	{ 50,	125,	383 },	/* PIO Mode 1 */
	{ 30,	100,	240 },	/* PIO Mode 2 */
	{ 30,	80,	180 },	/* PIO Mode 3 with IORDY */
	{ 25,	70,	120 },	/* PIO Mode 4 with IORDY */
	{ 20,	50,	100 }	/* PIO Mode 5 with IORDY (nonstandard) */
};

EXPORT_SYMBOL_GPL(ide_pio_timings);

/*
 * Shared data/functions for determining best PIO mode for an IDE drive.
 * Most of this stuff originally lived in cmd640.c, and changes to the
 * ide_pio_blacklist[] table should be made with EXTREME CAUTION to avoid
 * breaking the fragile cmd640.c support.
 */

/*
 * Black list. Some drives incorrectly report their maximal PIO mode,
 * at least in respect to CMD640. Here we keep info on some known drives.
 */
static struct ide_pio_info {
	const char	*name;
	int		pio;
} ide_pio_blacklist [] = {
/*	{ "Conner Peripherals 1275MB - CFS1275A", 4 }, */
	{ "Conner Peripherals 540MB - CFS540A", 3 },

	{ "WDC AC2700",  3 },
	{ "WDC AC2540",  3 },
	{ "WDC AC2420",  3 },
	{ "WDC AC2340",  3 },
	{ "WDC AC2250",  0 },
	{ "WDC AC2200",  0 },
	{ "WDC AC21200", 4 },
	{ "WDC AC2120",  0 },
	{ "WDC AC2850",  3 },
	{ "WDC AC1270",  3 },
	{ "WDC AC1170",  1 },
	{ "WDC AC1210",  1 },
	{ "WDC AC280",   0 },
/*	{ "WDC AC21000", 4 }, */
	{ "WDC AC31000", 3 },
	{ "WDC AC31200", 3 },
/*	{ "WDC AC31600", 4 }, */

	{ "Maxtor 7131 AT", 1 },
	{ "Maxtor 7171 AT", 1 },
	{ "Maxtor 7213 AT", 1 },
	{ "Maxtor 7245 AT", 1 },
	{ "Maxtor 7345 AT", 1 },
	{ "Maxtor 7546 AT", 3 },
	{ "Maxtor 7540 AV", 3 },

	{ "SAMSUNG SHD-3121A", 1 },
	{ "SAMSUNG SHD-3122A", 1 },
	{ "SAMSUNG SHD-3172A", 1 },

/*	{ "ST51080A", 4 },
 *	{ "ST51270A", 4 },
 *	{ "ST31220A", 4 },
 *	{ "ST31640A", 4 },
 *	{ "ST32140A", 4 },
 *	{ "ST3780A",  4 },
 */
	{ "ST5660A",  3 },
	{ "ST3660A",  3 },
	{ "ST3630A",  3 },
	{ "ST3655A",  3 },
	{ "ST3391A",  3 },
	{ "ST3390A",  1 },
	{ "ST3600A",  1 },
	{ "ST3290A",  0 },
	{ "ST3144A",  0 },
	{ "ST3491A",  1 },	/* reports 3, should be 1 or 2 (depending on */	
				/* drive) according to Seagates FIND-ATA program */

	{ "QUANTUM ELS127A", 0 },
	{ "QUANTUM ELS170A", 0 },
	{ "QUANTUM LPS240A", 0 },
	{ "QUANTUM LPS210A", 3 },
	{ "QUANTUM LPS270A", 3 },
	{ "QUANTUM LPS365A", 3 },
	{ "QUANTUM LPS540A", 3 },
	{ "QUANTUM LIGHTNING 540A", 3 },
	{ "QUANTUM LIGHTNING 730A", 3 },

        { "QUANTUM FIREBALL_540", 3 }, /* Older Quantum Fireballs don't work */
        { "QUANTUM FIREBALL_640", 3 }, 
        { "QUANTUM FIREBALL_1080", 3 },
        { "QUANTUM FIREBALL_1280", 3 },
	{ NULL,	0 }
};

/**
 *	ide_scan_pio_blacklist 	-	check for a blacklisted drive
 *	@model: Drive model string
 *
 *	This routine searches the ide_pio_blacklist for an entry
 *	matching the start/whole of the supplied model name.
 *
 *	Returns -1 if no match found.
 *	Otherwise returns the recommended PIO mode from ide_pio_blacklist[].
 */

static int ide_scan_pio_blacklist (char *model)
{
	struct ide_pio_info *p;

	for (p = ide_pio_blacklist; p->name != NULL; p++) {
		if (strncmp(p->name, model, strlen(p->name)) == 0)
			return p->pio;
	}
	return -1;
}

unsigned int ide_pio_cycle_time(ide_drive_t *drive, u8 pio)
{
	struct hd_driveid *id = drive->id;
	int cycle_time = 0;

	if (id->field_valid & 2) {
		if (id->capability & 8)
			cycle_time = id->eide_pio_iordy;
		else
			cycle_time = id->eide_pio;
	}

	/* conservative "downgrade" for all pre-ATA2 drives */
	if (pio < 3) {
		if (cycle_time && cycle_time < ide_pio_timings[pio].cycle_time)
			cycle_time = 0; /* use standard timing */
	}

	return cycle_time ? cycle_time : ide_pio_timings[pio].cycle_time;
}

EXPORT_SYMBOL_GPL(ide_pio_cycle_time);

/**
 *	ide_get_best_pio_mode	-	get PIO mode from drive
 *	@drive: drive to consider
 *	@mode_wanted: preferred mode
 *	@max_mode: highest allowed mode
 *
 *	This routine returns the recommended PIO settings for a given drive,
 *	based on the drive->id information and the ide_pio_blacklist[].
 *
 *	Drive PIO mode is auto-selected if 255 is passed as mode_wanted.
 *	This is used by most chipset support modules when "auto-tuning".
 */

u8 ide_get_best_pio_mode (ide_drive_t *drive, u8 mode_wanted, u8 max_mode)
{
	int pio_mode;
	struct hd_driveid* id = drive->id;
	int overridden  = 0;

	if (mode_wanted != 255)
		return min_t(u8, mode_wanted, max_mode);

	if ((drive->hwif->host_flags & IDE_HFLAG_PIO_NO_BLACKLIST) == 0 &&
	    (pio_mode = ide_scan_pio_blacklist(id->model)) != -1) {
		printk(KERN_INFO "%s: is on PIO blacklist\n", drive->name);
	} else {
		pio_mode = id->tPIO;
		if (pio_mode > 2) {	/* 2 is maximum allowed tPIO value */
			pio_mode = 2;
			overridden = 1;
		}
		if (id->field_valid & 2) {	  /* drive implements ATA2? */
			if (id->capability & 8) { /* IORDY supported? */
				if (id->eide_pio_modes & 7) {
					overridden = 0;
					if (id->eide_pio_modes & 4)
						pio_mode = 5;
					else if (id->eide_pio_modes & 2)
						pio_mode = 4;
					else
						pio_mode = 3;
				}
			}
		}

		if (overridden)
			printk(KERN_INFO "%s: tPIO > 2, assuming tPIO = 2\n",
					 drive->name);

		/*
		 * Conservative "downgrade" for all pre-ATA2 drives
		 */
		if ((drive->hwif->host_flags & IDE_HFLAG_PIO_NO_DOWNGRADE) == 0 &&
		    pio_mode && pio_mode < 4) {
			pio_mode--;
			printk(KERN_INFO "%s: applying conservative "
					 "PIO \"downgrade\"\n", drive->name);
		}
	}

	if (pio_mode > max_mode)
		pio_mode = max_mode;

	return pio_mode;
}

EXPORT_SYMBOL_GPL(ide_get_best_pio_mode);

/* req_pio == "255" for auto-tune */
void ide_set_pio(ide_drive_t *drive, u8 req_pio)
{
	ide_hwif_t *hwif = drive->hwif;
	u8 host_pio, pio;

	if (hwif->set_pio_mode == NULL)
		return;

	BUG_ON(hwif->pio_mask == 0x00);

	host_pio = fls(hwif->pio_mask) - 1;

	pio = ide_get_best_pio_mode(drive, req_pio, host_pio);

	/*
	 * TODO:
	 * - report device max PIO mode
	 * - check req_pio != 255 against device max PIO mode
	 */
	printk(KERN_DEBUG "%s: host max PIO%d wanted PIO%d%s selected PIO%d\n",
			  drive->name, host_pio, req_pio,
			  req_pio == 255 ? "(auto-tune)" : "", pio);

	(void)ide_set_pio_mode(drive, XFER_PIO_0 + pio);
}

EXPORT_SYMBOL_GPL(ide_set_pio);

/**
 *	ide_toggle_bounce	-	handle bounce buffering
 *	@drive: drive to update
 *	@on: on/off boolean
 *
 *	Enable or disable bounce buffering for the device. Drives move
 *	between PIO and DMA and that changes the rules we need.
 */
 
void ide_toggle_bounce(ide_drive_t *drive, int on)
{
	u64 addr = BLK_BOUNCE_HIGH;	/* dma64_addr_t */

	if (!PCI_DMA_BUS_IS_PHYS) {
		addr = BLK_BOUNCE_ANY;
	} else if (on && drive->media == ide_disk) {
		if (HWIF(drive)->pci_dev)
			addr = HWIF(drive)->pci_dev->dma_mask;
	}

	if (drive->queue)
		blk_queue_bounce_limit(drive->queue, addr);
}

int ide_set_pio_mode(ide_drive_t *drive, const u8 mode)
{
	ide_hwif_t *hwif = drive->hwif;

	if (hwif->set_pio_mode == NULL)
		return -1;

	/*
	 * TODO: temporary hack for some legacy host drivers that didn't
	 * set transfer mode on the device in ->set_pio_mode method...
	 */
	if (hwif->set_dma_mode == NULL) {
		hwif->set_pio_mode(drive, mode - XFER_PIO_0);
		return 0;
	}

	if (hwif->host_flags & IDE_HFLAG_POST_SET_MODE) {
		if (ide_config_drive_speed(drive, mode))
			return -1;
		hwif->set_pio_mode(drive, mode - XFER_PIO_0);
		return 0;
	} else {
		hwif->set_pio_mode(drive, mode - XFER_PIO_0);
		return ide_config_drive_speed(drive, mode);
	}
}

int ide_set_dma_mode(ide_drive_t *drive, const u8 mode)
{
	ide_hwif_t *hwif = drive->hwif;

	if (hwif->set_dma_mode == NULL)
		return -1;

	if (hwif->host_flags & IDE_HFLAG_POST_SET_MODE) {
		if (ide_config_drive_speed(drive, mode))
			return -1;
		hwif->set_dma_mode(drive, mode);
		return 0;
	} else {
		hwif->set_dma_mode(drive, mode);
		return ide_config_drive_speed(drive, mode);
	}
}

EXPORT_SYMBOL_GPL(ide_set_dma_mode);

/**
 *	ide_set_xfer_rate	-	set transfer rate
 *	@drive: drive to set
 *	@rate: speed to attempt to set
 *	
 *	General helper for setting the speed of an IDE device. This
 *	function knows about user enforced limits from the configuration
 *	which ->set_pio_mode/->set_dma_mode does not.
 */

int ide_set_xfer_rate(ide_drive_t *drive, u8 rate)
{
	ide_hwif_t *hwif = drive->hwif;

	if (hwif->set_dma_mode == NULL)
		return -1;

	rate = ide_rate_filter(drive, rate);

	if (rate >= XFER_PIO_0 && rate <= XFER_PIO_5)
		return ide_set_pio_mode(drive, rate);

	/*
	 * TODO: transfer modes 0x00-0x07 passed from the user-space are
	 * currently handled here which needs fixing (please note that such
	 * case could happen iff the transfer mode has already been set on
	 * the device by ide-proc.c::set_xfer_rate()).
	 */

	return ide_set_dma_mode(drive, rate);
}

static void ide_dump_opcode(ide_drive_t *drive)
{
	struct request *rq;
	u8 opcode = 0;
	int found = 0;

	spin_lock(&ide_lock);
	rq = NULL;
	if (HWGROUP(drive))
		rq = HWGROUP(drive)->rq;
	spin_unlock(&ide_lock);
	if (!rq)
		return;
	if (rq->cmd_type == REQ_TYPE_ATA_CMD) {
		char *args = rq->buffer;
		if (args) {
			opcode = args[0];
			found = 1;
		}
	} else if (rq->cmd_type == REQ_TYPE_ATA_TASKFILE) {
		ide_task_t *args = rq->special;
		if (args) {
			opcode = args->tf.command;
			found = 1;
		}
	}

	printk("ide: failed opcode was: ");
	if (!found)
		printk("unknown\n");
	else
		printk("0x%02x\n", opcode);
}

static u8 ide_dump_ata_status(ide_drive_t *drive, const char *msg, u8 stat)
{
	ide_hwif_t *hwif = HWIF(drive);
	unsigned long flags;
	u8 err = 0;

	local_irq_save(flags);
	printk("%s: %s: status=0x%02x { ", drive->name, msg, stat);
	if (stat & BUSY_STAT)
		printk("Busy ");
	else {
		if (stat & READY_STAT)	printk("DriveReady ");
		if (stat & WRERR_STAT)	printk("DeviceFault ");
		if (stat & SEEK_STAT)	printk("SeekComplete ");
		if (stat & DRQ_STAT)	printk("DataRequest ");
		if (stat & ECC_STAT)	printk("CorrectedError ");
		if (stat & INDEX_STAT)	printk("Index ");
		if (stat & ERR_STAT)	printk("Error ");
	}
	printk("}\n");
	if ((stat & (BUSY_STAT|ERR_STAT)) == ERR_STAT) {
		err = hwif->INB(IDE_ERROR_REG);
		printk("%s: %s: error=0x%02x { ", drive->name, msg, err);
		if (err & ABRT_ERR)	printk("DriveStatusError ");
		if (err & ICRC_ERR)
			printk((err & ABRT_ERR) ? "BadCRC " : "BadSector ");
		if (err & ECC_ERR)	printk("UncorrectableError ");
		if (err & ID_ERR)	printk("SectorIdNotFound ");
		if (err & TRK0_ERR)	printk("TrackZeroNotFound ");
		if (err & MARK_ERR)	printk("AddrMarkNotFound ");
		printk("}");
		if ((err & (BBD_ERR | ABRT_ERR)) == BBD_ERR ||
		    (err & (ECC_ERR|ID_ERR|MARK_ERR))) {
			if (drive->addressing == 1) {
				__u64 sectors = 0;
				u32 low = 0, high = 0;
				hwif->OUTB(drive->ctl&~0x80, IDE_CONTROL_REG);
				low = ide_read_24(drive);
				hwif->OUTB(drive->ctl|0x80, IDE_CONTROL_REG);
				high = ide_read_24(drive);
				sectors = ((__u64)high << 24) | low;
				printk(", LBAsect=%llu, high=%d, low=%d",
				       (unsigned long long) sectors,
				       high, low);
			} else {
				u8 cur = hwif->INB(IDE_SELECT_REG);
				if (cur & 0x40) {	/* using LBA? */
					printk(", LBAsect=%ld", (unsigned long)
					 ((cur&0xf)<<24)
					 |(hwif->INB(IDE_HCYL_REG)<<16)
					 |(hwif->INB(IDE_LCYL_REG)<<8)
					 | hwif->INB(IDE_SECTOR_REG));
				} else {
					printk(", CHS=%d/%d/%d",
					 (hwif->INB(IDE_HCYL_REG)<<8) +
					  hwif->INB(IDE_LCYL_REG),
					  cur & 0xf,
					  hwif->INB(IDE_SECTOR_REG));
				}
			}
			if (HWGROUP(drive) && HWGROUP(drive)->rq)
				printk(", sector=%llu",
					(unsigned long long)HWGROUP(drive)->rq->sector);
		}
		printk("\n");
	}
	ide_dump_opcode(drive);
	local_irq_restore(flags);
	return err;
}

/**
 *	ide_dump_atapi_status       -       print human readable atapi status
 *	@drive: drive that status applies to
 *	@msg: text message to print
 *	@stat: status byte to decode
 *
 *	Error reporting, in human readable form (luxurious, but a memory hog).
 */

static u8 ide_dump_atapi_status(ide_drive_t *drive, const char *msg, u8 stat)
{
	unsigned long flags;
	u8 err = 0;

	local_irq_save(flags);
	printk("%s: %s: status=0x%02x { ", drive->name, msg, stat);
	if (stat & BUSY_STAT)
		printk("Busy ");
	else {
		if (stat & READY_STAT)	printk("DriveReady ");
		if (stat & WRERR_STAT)	printk("DeviceFault ");
		if (stat & SEEK_STAT)	printk("SeekComplete ");
		if (stat & DRQ_STAT)	printk("DataRequest ");
		if (stat & ECC_STAT)	printk("CorrectedError ");
		if (stat & INDEX_STAT)	printk("Index ");
		if (stat & ERR_STAT)	printk("Error ");
	}
	printk("}\n");
	if ((stat & (BUSY_STAT|ERR_STAT)) == ERR_STAT) {
		err = drive->hwif->INB(IDE_ERROR_REG);
		printk("%s: %s: error=0x%02x { ", drive->name, msg, err);
		if (err & ILI_ERR)	printk("IllegalLengthIndication ");
		if (err & EOM_ERR)	printk("EndOfMedia ");
		if (err & ABRT_ERR)	printk("AbortedCommand ");
		if (err & MCR_ERR)	printk("MediaChangeRequested ");
		if (err & LFS_ERR)	printk("LastFailedSense=0x%02x ",
						(err & LFS_ERR) >> 4);
		printk("}\n");
	}
	ide_dump_opcode(drive);
	local_irq_restore(flags);
	return err;
}

/**
 *	ide_dump_status		-	translate ATA/ATAPI error
 *	@drive: drive the error occured on
 *	@msg: information string
 *	@stat: status byte
 *
 *	Error reporting, in human readable form (luxurious, but a memory hog).
 *	Combines the drive name, message and status byte to provide a
 *	user understandable explanation of the device error.
 */

u8 ide_dump_status(ide_drive_t *drive, const char *msg, u8 stat)
{
	if (drive->media == ide_disk)
		return ide_dump_ata_status(drive, msg, stat);
	return ide_dump_atapi_status(drive, msg, stat);
}

EXPORT_SYMBOL(ide_dump_status);
OpenPOWER on IntegriCloud