1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17#include <linux/types.h>
18#include <linux/string.h>
19#include <linux/kernel.h>
20#include <linux/timer.h>
21#include <linux/mm.h>
22#include <linux/interrupt.h>
23#include <linux/major.h>
24#include <linux/errno.h>
25#include <linux/genhd.h>
26#include <linux/slab.h>
27#include <linux/delay.h>
28#include <linux/mutex.h>
29#include <linux/leds.h>
30#include <linux/ide.h>
31
32#include <asm/byteorder.h>
33#include <asm/irq.h>
34#include <asm/uaccess.h>
35#include <asm/io.h>
36#include <asm/div64.h>
37
38#include "ide-disk.h"
39
40static const u8 ide_rw_cmds[] = {
41 ATA_CMD_READ_MULTI,
42 ATA_CMD_WRITE_MULTI,
43 ATA_CMD_READ_MULTI_EXT,
44 ATA_CMD_WRITE_MULTI_EXT,
45 ATA_CMD_PIO_READ,
46 ATA_CMD_PIO_WRITE,
47 ATA_CMD_PIO_READ_EXT,
48 ATA_CMD_PIO_WRITE_EXT,
49 ATA_CMD_READ,
50 ATA_CMD_WRITE,
51 ATA_CMD_READ_EXT,
52 ATA_CMD_WRITE_EXT,
53};
54
55static void ide_tf_set_cmd(ide_drive_t *drive, struct ide_cmd *cmd, u8 dma)
56{
57 u8 index, lba48, write;
58
59 lba48 = (cmd->tf_flags & IDE_TFLAG_LBA48) ? 2 : 0;
60 write = (cmd->tf_flags & IDE_TFLAG_WRITE) ? 1 : 0;
61
62 if (dma) {
63 cmd->protocol = ATA_PROT_DMA;
64 index = 8;
65 } else {
66 cmd->protocol = ATA_PROT_PIO;
67 if (drive->mult_count) {
68 cmd->tf_flags |= IDE_TFLAG_MULTI_PIO;
69 index = 0;
70 } else
71 index = 4;
72 }
73
74 cmd->tf.command = ide_rw_cmds[index + lba48 + write];
75}
76
77
78
79
80
81static ide_startstop_t __ide_do_rw_disk(ide_drive_t *drive, struct request *rq,
82 sector_t block)
83{
84 ide_hwif_t *hwif = drive->hwif;
85 u16 nsectors = (u16)blk_rq_sectors(rq);
86 u8 lba48 = !!(drive->dev_flags & IDE_DFLAG_LBA48);
87 u8 dma = !!(drive->dev_flags & IDE_DFLAG_USING_DMA);
88 struct ide_cmd cmd;
89 struct ide_taskfile *tf = &cmd.tf;
90 ide_startstop_t rc;
91
92 if ((hwif->host_flags & IDE_HFLAG_NO_LBA48_DMA) && lba48 && dma) {
93 if (block + blk_rq_sectors(rq) > 1ULL << 28)
94 dma = 0;
95 else
96 lba48 = 0;
97 }
98
99 memset(&cmd, 0, sizeof(cmd));
100 cmd.valid.out.tf = IDE_VALID_OUT_TF | IDE_VALID_DEVICE;
101 cmd.valid.in.tf = IDE_VALID_IN_TF | IDE_VALID_DEVICE;
102
103 if (drive->dev_flags & IDE_DFLAG_LBA) {
104 if (lba48) {
105 pr_debug("%s: LBA=0x%012llx\n", drive->name,
106 (unsigned long long)block);
107
108 tf->nsect = nsectors & 0xff;
109 tf->lbal = (u8) block;
110 tf->lbam = (u8)(block >> 8);
111 tf->lbah = (u8)(block >> 16);
112 tf->device = ATA_LBA;
113
114 tf = &cmd.hob;
115 tf->nsect = (nsectors >> 8) & 0xff;
116 tf->lbal = (u8)(block >> 24);
117 if (sizeof(block) != 4) {
118 tf->lbam = (u8)((u64)block >> 32);
119 tf->lbah = (u8)((u64)block >> 40);
120 }
121
122 cmd.valid.out.hob = IDE_VALID_OUT_HOB;
123 cmd.valid.in.hob = IDE_VALID_IN_HOB;
124 cmd.tf_flags |= IDE_TFLAG_LBA48;
125 } else {
126 tf->nsect = nsectors & 0xff;
127 tf->lbal = block;
128 tf->lbam = block >>= 8;
129 tf->lbah = block >>= 8;
130 tf->device = ((block >> 8) & 0xf) | ATA_LBA;
131 }
132 } else {
133 unsigned int sect, head, cyl, track;
134
135 track = (int)block / drive->sect;
136 sect = (int)block % drive->sect + 1;
137 head = track % drive->head;
138 cyl = track / drive->head;
139
140 pr_debug("%s: CHS=%u/%u/%u\n", drive->name, cyl, head, sect);
141
142 tf->nsect = nsectors & 0xff;
143 tf->lbal = sect;
144 tf->lbam = cyl;
145 tf->lbah = cyl >> 8;
146 tf->device = head;
147 }
148
149 cmd.tf_flags |= IDE_TFLAG_FS;
150
151 if (rq_data_dir(rq))
152 cmd.tf_flags |= IDE_TFLAG_WRITE;
153
154 ide_tf_set_cmd(drive, &cmd, dma);
155 cmd.rq = rq;
156
157 if (dma == 0) {
158 ide_init_sg_cmd(&cmd, nsectors << 9);
159 ide_map_sg(drive, &cmd);
160 }
161
162 rc = do_rw_taskfile(drive, &cmd);
163
164 if (rc == ide_stopped && dma) {
165
166 cmd.tf_flags |= IDE_TFLAG_DMA_PIO_FALLBACK;
167 ide_tf_set_cmd(drive, &cmd, 0);
168 ide_init_sg_cmd(&cmd, nsectors << 9);
169 rc = do_rw_taskfile(drive, &cmd);
170 }
171
172 return rc;
173}
174
175
176
177
178
179
180
181static ide_startstop_t ide_do_rw_disk(ide_drive_t *drive, struct request *rq,
182 sector_t block)
183{
184 ide_hwif_t *hwif = drive->hwif;
185
186 BUG_ON(drive->dev_flags & IDE_DFLAG_BLOCKED);
187 BUG_ON(rq->cmd_type != REQ_TYPE_FS);
188
189 ledtrig_ide_activity();
190
191 pr_debug("%s: %sing: block=%llu, sectors=%u, buffer=0x%08lx\n",
192 drive->name, rq_data_dir(rq) == READ ? "read" : "writ",
193 (unsigned long long)block, blk_rq_sectors(rq),
194 (unsigned long)rq->buffer);
195
196 if (hwif->rw_disk)
197 hwif->rw_disk(drive, rq);
198
199 return __ide_do_rw_disk(drive, rq, block);
200}
201
202
203
204
205
206static u64 idedisk_read_native_max_address(ide_drive_t *drive, int lba48)
207{
208 struct ide_cmd cmd;
209 struct ide_taskfile *tf = &cmd.tf;
210 u64 addr = 0;
211
212 memset(&cmd, 0, sizeof(cmd));
213 if (lba48)
214 tf->command = ATA_CMD_READ_NATIVE_MAX_EXT;
215 else
216 tf->command = ATA_CMD_READ_NATIVE_MAX;
217 tf->device = ATA_LBA;
218
219 cmd.valid.out.tf = IDE_VALID_OUT_TF | IDE_VALID_DEVICE;
220 cmd.valid.in.tf = IDE_VALID_IN_TF | IDE_VALID_DEVICE;
221 if (lba48) {
222 cmd.valid.out.hob = IDE_VALID_OUT_HOB;
223 cmd.valid.in.hob = IDE_VALID_IN_HOB;
224 cmd.tf_flags = IDE_TFLAG_LBA48;
225 }
226
227 ide_no_data_taskfile(drive, &cmd);
228
229
230 if (!(tf->status & ATA_ERR))
231 addr = ide_get_lba_addr(&cmd, lba48) + 1;
232
233 return addr;
234}
235
236
237
238
239
240static u64 idedisk_set_max_address(ide_drive_t *drive, u64 addr_req, int lba48)
241{
242 struct ide_cmd cmd;
243 struct ide_taskfile *tf = &cmd.tf;
244 u64 addr_set = 0;
245
246 addr_req--;
247
248 memset(&cmd, 0, sizeof(cmd));
249 tf->lbal = (addr_req >> 0) & 0xff;
250 tf->lbam = (addr_req >>= 8) & 0xff;
251 tf->lbah = (addr_req >>= 8) & 0xff;
252 if (lba48) {
253 cmd.hob.lbal = (addr_req >>= 8) & 0xff;
254 cmd.hob.lbam = (addr_req >>= 8) & 0xff;
255 cmd.hob.lbah = (addr_req >>= 8) & 0xff;
256 tf->command = ATA_CMD_SET_MAX_EXT;
257 } else {
258 tf->device = (addr_req >>= 8) & 0x0f;
259 tf->command = ATA_CMD_SET_MAX;
260 }
261 tf->device |= ATA_LBA;
262
263 cmd.valid.out.tf = IDE_VALID_OUT_TF | IDE_VALID_DEVICE;
264 cmd.valid.in.tf = IDE_VALID_IN_TF | IDE_VALID_DEVICE;
265 if (lba48) {
266 cmd.valid.out.hob = IDE_VALID_OUT_HOB;
267 cmd.valid.in.hob = IDE_VALID_IN_HOB;
268 cmd.tf_flags = IDE_TFLAG_LBA48;
269 }
270
271 ide_no_data_taskfile(drive, &cmd);
272
273
274 if (!(tf->status & ATA_ERR))
275 addr_set = ide_get_lba_addr(&cmd, lba48) + 1;
276
277 return addr_set;
278}
279
280static unsigned long long sectors_to_MB(unsigned long long n)
281{
282 n <<= 9;
283 do_div(n, 1000000);
284 return n;
285}
286
287
288
289
290
291static const struct drive_list_entry hpa_list[] = {
292 { "ST340823A", NULL },
293 { "ST320413A", NULL },
294 { "ST310211A", NULL },
295 { NULL, NULL }
296};
297
298static u64 ide_disk_hpa_get_native_capacity(ide_drive_t *drive, int lba48)
299{
300 u64 capacity, set_max;
301
302 capacity = drive->capacity64;
303 set_max = idedisk_read_native_max_address(drive, lba48);
304
305 if (ide_in_drive_list(drive->id, hpa_list)) {
306
307
308
309
310 if (set_max == capacity + 1)
311 set_max--;
312 }
313
314 return set_max;
315}
316
317static u64 ide_disk_hpa_set_capacity(ide_drive_t *drive, u64 set_max, int lba48)
318{
319 set_max = idedisk_set_max_address(drive, set_max, lba48);
320 if (set_max)
321 drive->capacity64 = set_max;
322
323 return set_max;
324}
325
326static void idedisk_check_hpa(ide_drive_t *drive)
327{
328 u64 capacity, set_max;
329 int lba48 = ata_id_lba48_enabled(drive->id);
330
331 capacity = drive->capacity64;
332 set_max = ide_disk_hpa_get_native_capacity(drive, lba48);
333
334 if (set_max <= capacity)
335 return;
336
337 drive->probed_capacity = set_max;
338
339 printk(KERN_INFO "%s: Host Protected Area detected.\n"
340 "\tcurrent capacity is %llu sectors (%llu MB)\n"
341 "\tnative capacity is %llu sectors (%llu MB)\n",
342 drive->name,
343 capacity, sectors_to_MB(capacity),
344 set_max, sectors_to_MB(set_max));
345
346 if ((drive->dev_flags & IDE_DFLAG_NOHPA) == 0)
347 return;
348
349 set_max = ide_disk_hpa_set_capacity(drive, set_max, lba48);
350 if (set_max)
351 printk(KERN_INFO "%s: Host Protected Area disabled.\n",
352 drive->name);
353}
354
355static int ide_disk_get_capacity(ide_drive_t *drive)
356{
357 u16 *id = drive->id;
358 int lba;
359
360 if (ata_id_lba48_enabled(id)) {
361
362 lba = 1;
363 drive->capacity64 = ata_id_u64(id, ATA_ID_LBA_CAPACITY_2);
364 } else if (ata_id_has_lba(id) && ata_id_is_lba_capacity_ok(id)) {
365
366 lba = 1;
367 drive->capacity64 = ata_id_u32(id, ATA_ID_LBA_CAPACITY);
368 } else {
369
370 lba = 0;
371 drive->capacity64 = drive->cyl * drive->head * drive->sect;
372 }
373
374 drive->probed_capacity = drive->capacity64;
375
376 if (lba) {
377 drive->dev_flags |= IDE_DFLAG_LBA;
378
379
380
381
382
383 if (ata_id_hpa_enabled(id))
384 idedisk_check_hpa(drive);
385 }
386
387
388 if ((drive->dev_flags & IDE_DFLAG_LBA48) == 0 &&
389 drive->capacity64 > 1ULL << 28) {
390 printk(KERN_WARNING "%s: cannot use LBA48 - full capacity "
391 "%llu sectors (%llu MB)\n",
392 drive->name, (unsigned long long)drive->capacity64,
393 sectors_to_MB(drive->capacity64));
394 drive->probed_capacity = drive->capacity64 = 1ULL << 28;
395 }
396
397 if ((drive->hwif->host_flags & IDE_HFLAG_NO_LBA48_DMA) &&
398 (drive->dev_flags & IDE_DFLAG_LBA48)) {
399 if (drive->capacity64 > 1ULL << 28) {
400 printk(KERN_INFO "%s: cannot use LBA48 DMA - PIO mode"
401 " will be used for accessing sectors "
402 "> %u\n", drive->name, 1 << 28);
403 } else
404 drive->dev_flags &= ~IDE_DFLAG_LBA48;
405 }
406
407 return 0;
408}
409
410static void ide_disk_unlock_native_capacity(ide_drive_t *drive)
411{
412 u16 *id = drive->id;
413 int lba48 = ata_id_lba48_enabled(id);
414
415 if ((drive->dev_flags & IDE_DFLAG_LBA) == 0 ||
416 ata_id_hpa_enabled(id) == 0)
417 return;
418
419
420
421
422
423 if (!ide_disk_hpa_get_native_capacity(drive, lba48))
424 return;
425
426 if (ide_disk_hpa_set_capacity(drive, drive->probed_capacity, lba48))
427 drive->dev_flags |= IDE_DFLAG_NOHPA;
428}
429
430static int idedisk_prep_fn(struct request_queue *q, struct request *rq)
431{
432 ide_drive_t *drive = q->queuedata;
433 struct ide_cmd *cmd;
434
435 if (!(rq->cmd_flags & REQ_FLUSH))
436 return BLKPREP_OK;
437
438 cmd = kzalloc(sizeof(*cmd), GFP_ATOMIC);
439
440
441 BUG_ON(cmd == NULL);
442
443 if (ata_id_flush_ext_enabled(drive->id) &&
444 (drive->capacity64 >= (1UL << 28)))
445 cmd->tf.command = ATA_CMD_FLUSH_EXT;
446 else
447 cmd->tf.command = ATA_CMD_FLUSH;
448 cmd->valid.out.tf = IDE_VALID_OUT_TF | IDE_VALID_DEVICE;
449 cmd->tf_flags = IDE_TFLAG_DYN;
450 cmd->protocol = ATA_PROT_NODATA;
451
452 rq->cmd_type = REQ_TYPE_ATA_TASKFILE;
453 rq->special = cmd;
454 cmd->rq = rq;
455
456 return BLKPREP_OK;
457}
458
459ide_devset_get(multcount, mult_count);
460
461
462
463
464
465static int set_multcount(ide_drive_t *drive, int arg)
466{
467 struct request *rq;
468 int error;
469
470 if (arg < 0 || arg > (drive->id[ATA_ID_MAX_MULTSECT] & 0xff))
471 return -EINVAL;
472
473 if (drive->special_flags & IDE_SFLAG_SET_MULTMODE)
474 return -EBUSY;
475
476 rq = blk_get_request(drive->queue, READ, __GFP_WAIT);
477 rq->cmd_type = REQ_TYPE_ATA_TASKFILE;
478
479 drive->mult_req = arg;
480 drive->special_flags |= IDE_SFLAG_SET_MULTMODE;
481 error = blk_execute_rq(drive->queue, NULL, rq, 0);
482 blk_put_request(rq);
483
484 return (drive->mult_count == arg) ? 0 : -EIO;
485}
486
487ide_devset_get_flag(nowerr, IDE_DFLAG_NOWERR);
488
489static int set_nowerr(ide_drive_t *drive, int arg)
490{
491 if (arg < 0 || arg > 1)
492 return -EINVAL;
493
494 if (arg)
495 drive->dev_flags |= IDE_DFLAG_NOWERR;
496 else
497 drive->dev_flags &= ~IDE_DFLAG_NOWERR;
498
499 drive->bad_wstat = arg ? BAD_R_STAT : BAD_W_STAT;
500
501 return 0;
502}
503
504static int ide_do_setfeature(ide_drive_t *drive, u8 feature, u8 nsect)
505{
506 struct ide_cmd cmd;
507
508 memset(&cmd, 0, sizeof(cmd));
509 cmd.tf.feature = feature;
510 cmd.tf.nsect = nsect;
511 cmd.tf.command = ATA_CMD_SET_FEATURES;
512 cmd.valid.out.tf = IDE_VALID_OUT_TF | IDE_VALID_DEVICE;
513 cmd.valid.in.tf = IDE_VALID_IN_TF | IDE_VALID_DEVICE;
514
515 return ide_no_data_taskfile(drive, &cmd);
516}
517
518static void update_flush(ide_drive_t *drive)
519{
520 u16 *id = drive->id;
521 unsigned flush = 0;
522
523 if (drive->dev_flags & IDE_DFLAG_WCACHE) {
524 unsigned long long capacity;
525 int barrier;
526
527
528
529
530
531
532
533
534 capacity = ide_gd_capacity(drive);
535 barrier = ata_id_flush_enabled(id) &&
536 (drive->dev_flags & IDE_DFLAG_NOFLUSH) == 0 &&
537 ((drive->dev_flags & IDE_DFLAG_LBA48) == 0 ||
538 capacity <= (1ULL << 28) ||
539 ata_id_flush_ext_enabled(id));
540
541 printk(KERN_INFO "%s: cache flushes %ssupported\n",
542 drive->name, barrier ? "" : "not ");
543
544 if (barrier) {
545 flush = REQ_FLUSH;
546 blk_queue_prep_rq(drive->queue, idedisk_prep_fn);
547 }
548 }
549
550 blk_queue_flush(drive->queue, flush);
551}
552
553ide_devset_get_flag(wcache, IDE_DFLAG_WCACHE);
554
555static int set_wcache(ide_drive_t *drive, int arg)
556{
557 int err = 1;
558
559 if (arg < 0 || arg > 1)
560 return -EINVAL;
561
562 if (ata_id_flush_enabled(drive->id)) {
563 err = ide_do_setfeature(drive,
564 arg ? SETFEATURES_WC_ON : SETFEATURES_WC_OFF, 0);
565 if (err == 0) {
566 if (arg)
567 drive->dev_flags |= IDE_DFLAG_WCACHE;
568 else
569 drive->dev_flags &= ~IDE_DFLAG_WCACHE;
570 }
571 }
572
573 update_flush(drive);
574
575 return err;
576}
577
578static int do_idedisk_flushcache(ide_drive_t *drive)
579{
580 struct ide_cmd cmd;
581
582 memset(&cmd, 0, sizeof(cmd));
583 if (ata_id_flush_ext_enabled(drive->id))
584 cmd.tf.command = ATA_CMD_FLUSH_EXT;
585 else
586 cmd.tf.command = ATA_CMD_FLUSH;
587 cmd.valid.out.tf = IDE_VALID_OUT_TF | IDE_VALID_DEVICE;
588 cmd.valid.in.tf = IDE_VALID_IN_TF | IDE_VALID_DEVICE;
589
590 return ide_no_data_taskfile(drive, &cmd);
591}
592
593ide_devset_get(acoustic, acoustic);
594
595static int set_acoustic(ide_drive_t *drive, int arg)
596{
597 if (arg < 0 || arg > 254)
598 return -EINVAL;
599
600 ide_do_setfeature(drive,
601 arg ? SETFEATURES_AAM_ON : SETFEATURES_AAM_OFF, arg);
602
603 drive->acoustic = arg;
604
605 return 0;
606}
607
608ide_devset_get_flag(addressing, IDE_DFLAG_LBA48);
609
610
611
612
613
614
615
616static int set_addressing(ide_drive_t *drive, int arg)
617{
618 if (arg < 0 || arg > 2)
619 return -EINVAL;
620
621 if (arg && ((drive->hwif->host_flags & IDE_HFLAG_NO_LBA48) ||
622 ata_id_lba48_enabled(drive->id) == 0))
623 return -EIO;
624
625 if (arg == 2)
626 arg = 0;
627
628 if (arg)
629 drive->dev_flags |= IDE_DFLAG_LBA48;
630 else
631 drive->dev_flags &= ~IDE_DFLAG_LBA48;
632
633 return 0;
634}
635
636ide_ext_devset_rw(acoustic, acoustic);
637ide_ext_devset_rw(address, addressing);
638ide_ext_devset_rw(multcount, multcount);
639ide_ext_devset_rw(wcache, wcache);
640
641ide_ext_devset_rw_sync(nowerr, nowerr);
642
643static int ide_disk_check(ide_drive_t *drive, const char *s)
644{
645 return 1;
646}
647
648static void ide_disk_setup(ide_drive_t *drive)
649{
650 struct ide_disk_obj *idkp = drive->driver_data;
651 struct request_queue *q = drive->queue;
652 ide_hwif_t *hwif = drive->hwif;
653 u16 *id = drive->id;
654 char *m = (char *)&id[ATA_ID_PROD];
655 unsigned long long capacity;
656
657 ide_proc_register_driver(drive, idkp->driver);
658
659 if ((drive->dev_flags & IDE_DFLAG_ID_READ) == 0)
660 return;
661
662 if (drive->dev_flags & IDE_DFLAG_REMOVABLE) {
663
664
665
666 if (m[0] != 'W' || m[1] != 'D')
667 drive->dev_flags |= IDE_DFLAG_DOORLOCKING;
668 }
669
670 (void)set_addressing(drive, 1);
671
672 if (drive->dev_flags & IDE_DFLAG_LBA48) {
673 int max_s = 2048;
674
675 if (max_s > hwif->rqsize)
676 max_s = hwif->rqsize;
677
678 blk_queue_max_hw_sectors(q, max_s);
679 }
680
681 printk(KERN_INFO "%s: max request size: %dKiB\n", drive->name,
682 queue_max_sectors(q) / 2);
683
684 if (ata_id_is_ssd(id))
685 queue_flag_set_unlocked(QUEUE_FLAG_NONROT, q);
686
687
688 ide_disk_get_capacity(drive);
689
690
691
692
693
694 capacity = ide_gd_capacity(drive);
695
696 if ((drive->dev_flags & IDE_DFLAG_FORCED_GEOM) == 0) {
697 if (ata_id_lba48_enabled(drive->id)) {
698
699 drive->bios_sect = 63;
700 drive->bios_head = 255;
701 }
702
703 if (drive->bios_sect && drive->bios_head) {
704 unsigned int cap0 = capacity;
705 unsigned int cylsz, cyl;
706
707 if (cap0 != capacity)
708 drive->bios_cyl = 65535;
709 else {
710 cylsz = drive->bios_sect * drive->bios_head;
711 cyl = cap0 / cylsz;
712 if (cyl > 65535)
713 cyl = 65535;
714 if (cyl > drive->bios_cyl)
715 drive->bios_cyl = cyl;
716 }
717 }
718 }
719 printk(KERN_INFO "%s: %llu sectors (%llu MB)",
720 drive->name, capacity, sectors_to_MB(capacity));
721
722
723 if (id[ATA_ID_BUF_SIZE])
724 printk(KERN_CONT " w/%dKiB Cache", id[ATA_ID_BUF_SIZE] / 2);
725
726 printk(KERN_CONT ", CHS=%d/%d/%d\n",
727 drive->bios_cyl, drive->bios_head, drive->bios_sect);
728
729
730 if ((id[ATA_ID_CSFO] & 1) || ata_id_wcache_enabled(id))
731 drive->dev_flags |= IDE_DFLAG_WCACHE;
732
733 set_wcache(drive, 1);
734
735 if ((drive->dev_flags & IDE_DFLAG_LBA) == 0 &&
736 (drive->head == 0 || drive->head > 16)) {
737 printk(KERN_ERR "%s: invalid geometry: %d physical heads?\n",
738 drive->name, drive->head);
739 drive->dev_flags &= ~IDE_DFLAG_ATTACH;
740 } else
741 drive->dev_flags |= IDE_DFLAG_ATTACH;
742}
743
744static void ide_disk_flush(ide_drive_t *drive)
745{
746 if (ata_id_flush_enabled(drive->id) == 0 ||
747 (drive->dev_flags & IDE_DFLAG_WCACHE) == 0)
748 return;
749
750 if (do_idedisk_flushcache(drive))
751 printk(KERN_INFO "%s: wcache flush failed!\n", drive->name);
752}
753
754static int ide_disk_init_media(ide_drive_t *drive, struct gendisk *disk)
755{
756 return 0;
757}
758
759static int ide_disk_set_doorlock(ide_drive_t *drive, struct gendisk *disk,
760 int on)
761{
762 struct ide_cmd cmd;
763 int ret;
764
765 if ((drive->dev_flags & IDE_DFLAG_DOORLOCKING) == 0)
766 return 0;
767
768 memset(&cmd, 0, sizeof(cmd));
769 cmd.tf.command = on ? ATA_CMD_MEDIA_LOCK : ATA_CMD_MEDIA_UNLOCK;
770 cmd.valid.out.tf = IDE_VALID_OUT_TF | IDE_VALID_DEVICE;
771 cmd.valid.in.tf = IDE_VALID_IN_TF | IDE_VALID_DEVICE;
772
773 ret = ide_no_data_taskfile(drive, &cmd);
774
775 if (ret)
776 drive->dev_flags &= ~IDE_DFLAG_DOORLOCKING;
777
778 return ret;
779}
780
781const struct ide_disk_ops ide_ata_disk_ops = {
782 .check = ide_disk_check,
783 .unlock_native_capacity = ide_disk_unlock_native_capacity,
784 .get_capacity = ide_disk_get_capacity,
785 .setup = ide_disk_setup,
786 .flush = ide_disk_flush,
787 .init_media = ide_disk_init_media,
788 .set_doorlock = ide_disk_set_doorlock,
789 .do_request = ide_do_rw_disk,
790 .ioctl = ide_disk_ioctl,
791};
792