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1 | /* | |
2 | * IDE ATAPI floppy driver. | |
3 | * | |
4 | * Copyright (C) 1996-1999 Gadi Oxman <gadio@netvision.net.il> | |
5 | * Copyright (C) 2000-2002 Paul Bristow <paul@paulbristow.net> | |
6 | * Copyright (C) 2005 Bartlomiej Zolnierkiewicz | |
7 | * | |
8 | * This driver supports the following IDE floppy drives: | |
9 | * | |
10 | * LS-120/240 SuperDisk | |
11 | * Iomega Zip 100/250 | |
12 | * Iomega PC Card Clik!/PocketZip | |
13 | * | |
14 | * For a historical changelog see | |
15 | * Documentation/ide/ChangeLog.ide-floppy.1996-2002 | |
16 | */ | |
17 | ||
18 | #include <linux/types.h> | |
19 | #include <linux/string.h> | |
20 | #include <linux/kernel.h> | |
21 | #include <linux/delay.h> | |
22 | #include <linux/timer.h> | |
23 | #include <linux/mm.h> | |
24 | #include <linux/interrupt.h> | |
25 | #include <linux/major.h> | |
26 | #include <linux/errno.h> | |
27 | #include <linux/genhd.h> | |
28 | #include <linux/slab.h> | |
29 | #include <linux/cdrom.h> | |
30 | #include <linux/ide.h> | |
31 | #include <linux/hdreg.h> | |
32 | #include <linux/bitops.h> | |
33 | #include <linux/mutex.h> | |
34 | #include <linux/scatterlist.h> | |
35 | ||
36 | #include <scsi/scsi_ioctl.h> | |
37 | ||
38 | #include <asm/byteorder.h> | |
39 | #include <linux/irq.h> | |
40 | #include <linux/uaccess.h> | |
41 | #include <linux/io.h> | |
42 | #include <asm/unaligned.h> | |
43 | ||
44 | #include "ide-floppy.h" | |
45 | ||
46 | /* | |
47 | * After each failed packet command we issue a request sense command and retry | |
48 | * the packet command IDEFLOPPY_MAX_PC_RETRIES times. | |
49 | */ | |
50 | #define IDEFLOPPY_MAX_PC_RETRIES 3 | |
51 | ||
52 | /* format capacities descriptor codes */ | |
53 | #define CAPACITY_INVALID 0x00 | |
54 | #define CAPACITY_UNFORMATTED 0x01 | |
55 | #define CAPACITY_CURRENT 0x02 | |
56 | #define CAPACITY_NO_CARTRIDGE 0x03 | |
57 | ||
58 | /* | |
59 | * The following delay solves a problem with ATAPI Zip 100 drive where BSY bit | |
60 | * was apparently being deasserted before the unit was ready to receive data. | |
61 | */ | |
62 | #define IDEFLOPPY_PC_DELAY (HZ/20) /* default delay for ZIP 100 (50ms) */ | |
63 | ||
64 | /* Error code returned in rq->errors to the higher part of the driver. */ | |
65 | #define IDEFLOPPY_ERROR_GENERAL 101 | |
66 | ||
67 | /* | |
68 | * Used to finish servicing a request. For read/write requests, we will call | |
69 | * ide_end_request to pass to the next buffer. | |
70 | */ | |
71 | static int ide_floppy_end_request(ide_drive_t *drive, int uptodate, int nsecs) | |
72 | { | |
73 | struct ide_disk_obj *floppy = drive->driver_data; | |
74 | struct request *rq = drive->hwif->rq; | |
75 | int error; | |
76 | ||
77 | ide_debug_log(IDE_DBG_FUNC, "enter"); | |
78 | ||
79 | switch (uptodate) { | |
80 | case 0: | |
81 | error = IDEFLOPPY_ERROR_GENERAL; | |
82 | break; | |
83 | ||
84 | case 1: | |
85 | error = 0; | |
86 | break; | |
87 | ||
88 | default: | |
89 | error = uptodate; | |
90 | } | |
91 | ||
92 | if (error) | |
93 | floppy->failed_pc = NULL; | |
94 | /* Why does this happen? */ | |
95 | if (!rq) | |
96 | return 0; | |
97 | if (!blk_special_request(rq)) { | |
98 | /* our real local end request function */ | |
99 | ide_end_request(drive, uptodate, nsecs); | |
100 | return 0; | |
101 | } | |
102 | rq->errors = error; | |
103 | /* fixme: need to move this local also */ | |
104 | ide_end_drive_cmd(drive, 0, 0); | |
105 | return 0; | |
106 | } | |
107 | ||
108 | static void idefloppy_update_buffers(ide_drive_t *drive, | |
109 | struct ide_atapi_pc *pc) | |
110 | { | |
111 | struct request *rq = pc->rq; | |
112 | struct bio *bio = rq->bio; | |
113 | ||
114 | while ((bio = rq->bio) != NULL) | |
115 | ide_floppy_end_request(drive, 1, 0); | |
116 | } | |
117 | ||
118 | static void ide_floppy_callback(ide_drive_t *drive, int dsc) | |
119 | { | |
120 | struct ide_disk_obj *floppy = drive->driver_data; | |
121 | struct ide_atapi_pc *pc = drive->pc; | |
122 | int uptodate = pc->error ? 0 : 1; | |
123 | ||
124 | ide_debug_log(IDE_DBG_FUNC, "enter"); | |
125 | ||
126 | if (floppy->failed_pc == pc) | |
127 | floppy->failed_pc = NULL; | |
128 | ||
129 | if (pc->c[0] == GPCMD_READ_10 || pc->c[0] == GPCMD_WRITE_10 || | |
130 | (pc->rq && blk_pc_request(pc->rq))) | |
131 | uptodate = 1; /* FIXME */ | |
132 | else if (pc->c[0] == GPCMD_REQUEST_SENSE) { | |
133 | u8 *buf = pc->buf; | |
134 | ||
135 | if (!pc->error) { | |
136 | floppy->sense_key = buf[2] & 0x0F; | |
137 | floppy->asc = buf[12]; | |
138 | floppy->ascq = buf[13]; | |
139 | floppy->progress_indication = buf[15] & 0x80 ? | |
140 | (u16)get_unaligned((u16 *)&buf[16]) : 0x10000; | |
141 | ||
142 | if (floppy->failed_pc) | |
143 | ide_debug_log(IDE_DBG_PC, "pc = %x", | |
144 | floppy->failed_pc->c[0]); | |
145 | ||
146 | ide_debug_log(IDE_DBG_SENSE, "sense key = %x, asc = %x," | |
147 | "ascq = %x", floppy->sense_key, | |
148 | floppy->asc, floppy->ascq); | |
149 | } else | |
150 | printk(KERN_ERR PFX "Error in REQUEST SENSE itself - " | |
151 | "Aborting request!\n"); | |
152 | } | |
153 | ||
154 | ide_floppy_end_request(drive, uptodate, 0); | |
155 | } | |
156 | ||
157 | static void ide_floppy_report_error(struct ide_disk_obj *floppy, | |
158 | struct ide_atapi_pc *pc) | |
159 | { | |
160 | /* supress error messages resulting from Medium not present */ | |
161 | if (floppy->sense_key == 0x02 && | |
162 | floppy->asc == 0x3a && | |
163 | floppy->ascq == 0x00) | |
164 | return; | |
165 | ||
166 | printk(KERN_ERR PFX "%s: I/O error, pc = %2x, key = %2x, " | |
167 | "asc = %2x, ascq = %2x\n", | |
168 | floppy->drive->name, pc->c[0], floppy->sense_key, | |
169 | floppy->asc, floppy->ascq); | |
170 | ||
171 | } | |
172 | ||
173 | static ide_startstop_t idefloppy_issue_pc(ide_drive_t *drive, | |
174 | struct ide_atapi_pc *pc) | |
175 | { | |
176 | struct ide_disk_obj *floppy = drive->driver_data; | |
177 | ||
178 | if (floppy->failed_pc == NULL && | |
179 | pc->c[0] != GPCMD_REQUEST_SENSE) | |
180 | floppy->failed_pc = pc; | |
181 | ||
182 | /* Set the current packet command */ | |
183 | drive->pc = pc; | |
184 | ||
185 | if (pc->retries > IDEFLOPPY_MAX_PC_RETRIES) { | |
186 | if (!(pc->flags & PC_FLAG_SUPPRESS_ERROR)) | |
187 | ide_floppy_report_error(floppy, pc); | |
188 | /* Giving up */ | |
189 | pc->error = IDEFLOPPY_ERROR_GENERAL; | |
190 | ||
191 | floppy->failed_pc = NULL; | |
192 | drive->pc_callback(drive, 0); | |
193 | return ide_stopped; | |
194 | } | |
195 | ||
196 | ide_debug_log(IDE_DBG_FUNC, "retry #%d", pc->retries); | |
197 | ||
198 | pc->retries++; | |
199 | ||
200 | return ide_issue_pc(drive); | |
201 | } | |
202 | ||
203 | void ide_floppy_create_read_capacity_cmd(struct ide_atapi_pc *pc) | |
204 | { | |
205 | ide_init_pc(pc); | |
206 | pc->c[0] = GPCMD_READ_FORMAT_CAPACITIES; | |
207 | pc->c[7] = 255; | |
208 | pc->c[8] = 255; | |
209 | pc->req_xfer = 255; | |
210 | } | |
211 | ||
212 | /* A mode sense command is used to "sense" floppy parameters. */ | |
213 | void ide_floppy_create_mode_sense_cmd(struct ide_atapi_pc *pc, u8 page_code) | |
214 | { | |
215 | u16 length = 8; /* sizeof(Mode Parameter Header) = 8 Bytes */ | |
216 | ||
217 | ide_init_pc(pc); | |
218 | pc->c[0] = GPCMD_MODE_SENSE_10; | |
219 | pc->c[1] = 0; | |
220 | pc->c[2] = page_code; | |
221 | ||
222 | switch (page_code) { | |
223 | case IDEFLOPPY_CAPABILITIES_PAGE: | |
224 | length += 12; | |
225 | break; | |
226 | case IDEFLOPPY_FLEXIBLE_DISK_PAGE: | |
227 | length += 32; | |
228 | break; | |
229 | default: | |
230 | printk(KERN_ERR PFX "unsupported page code in %s\n", __func__); | |
231 | } | |
232 | put_unaligned(cpu_to_be16(length), (u16 *) &pc->c[7]); | |
233 | pc->req_xfer = length; | |
234 | } | |
235 | ||
236 | static void idefloppy_create_rw_cmd(ide_drive_t *drive, | |
237 | struct ide_atapi_pc *pc, struct request *rq, | |
238 | unsigned long sector) | |
239 | { | |
240 | struct ide_disk_obj *floppy = drive->driver_data; | |
241 | int block = sector / floppy->bs_factor; | |
242 | int blocks = rq->nr_sectors / floppy->bs_factor; | |
243 | int cmd = rq_data_dir(rq); | |
244 | ||
245 | ide_debug_log(IDE_DBG_FUNC, "block: %d, blocks: %d", block, blocks); | |
246 | ||
247 | ide_init_pc(pc); | |
248 | pc->c[0] = cmd == READ ? GPCMD_READ_10 : GPCMD_WRITE_10; | |
249 | put_unaligned(cpu_to_be16(blocks), (unsigned short *)&pc->c[7]); | |
250 | put_unaligned(cpu_to_be32(block), (unsigned int *) &pc->c[2]); | |
251 | ||
252 | memcpy(rq->cmd, pc->c, 12); | |
253 | ||
254 | pc->rq = rq; | |
255 | pc->b_count = 0; | |
256 | if (rq->cmd_flags & REQ_RW) | |
257 | pc->flags |= PC_FLAG_WRITING; | |
258 | pc->buf = NULL; | |
259 | pc->req_xfer = pc->buf_size = blocks * floppy->block_size; | |
260 | pc->flags |= PC_FLAG_DMA_OK; | |
261 | } | |
262 | ||
263 | static void idefloppy_blockpc_cmd(struct ide_disk_obj *floppy, | |
264 | struct ide_atapi_pc *pc, struct request *rq) | |
265 | { | |
266 | ide_init_pc(pc); | |
267 | memcpy(pc->c, rq->cmd, sizeof(pc->c)); | |
268 | pc->rq = rq; | |
269 | pc->b_count = 0; | |
270 | if (rq->data_len && rq_data_dir(rq) == WRITE) | |
271 | pc->flags |= PC_FLAG_WRITING; | |
272 | pc->buf = rq->data; | |
273 | if (rq->bio) | |
274 | pc->flags |= PC_FLAG_DMA_OK; | |
275 | /* | |
276 | * possibly problematic, doesn't look like ide-floppy correctly | |
277 | * handled scattered requests if dma fails... | |
278 | */ | |
279 | pc->req_xfer = pc->buf_size = rq->data_len; | |
280 | } | |
281 | ||
282 | static ide_startstop_t ide_floppy_do_request(ide_drive_t *drive, | |
283 | struct request *rq, sector_t block) | |
284 | { | |
285 | struct ide_disk_obj *floppy = drive->driver_data; | |
286 | ide_hwif_t *hwif = drive->hwif; | |
287 | struct ide_atapi_pc *pc; | |
288 | ||
289 | if (drive->debug_mask & IDE_DBG_RQ) | |
290 | blk_dump_rq_flags(rq, (rq->rq_disk | |
291 | ? rq->rq_disk->disk_name | |
292 | : "dev?")); | |
293 | ||
294 | if (rq->errors >= ERROR_MAX) { | |
295 | if (floppy->failed_pc) | |
296 | ide_floppy_report_error(floppy, floppy->failed_pc); | |
297 | else | |
298 | printk(KERN_ERR PFX "%s: I/O error\n", drive->name); | |
299 | ||
300 | ide_floppy_end_request(drive, 0, 0); | |
301 | return ide_stopped; | |
302 | } | |
303 | if (blk_fs_request(rq)) { | |
304 | if (((long)rq->sector % floppy->bs_factor) || | |
305 | (rq->nr_sectors % floppy->bs_factor)) { | |
306 | printk(KERN_ERR PFX "%s: unsupported r/w rq size\n", | |
307 | drive->name); | |
308 | ide_floppy_end_request(drive, 0, 0); | |
309 | return ide_stopped; | |
310 | } | |
311 | pc = &floppy->queued_pc; | |
312 | idefloppy_create_rw_cmd(drive, pc, rq, (unsigned long)block); | |
313 | } else if (blk_special_request(rq)) { | |
314 | pc = (struct ide_atapi_pc *) rq->buffer; | |
315 | } else if (blk_pc_request(rq)) { | |
316 | pc = &floppy->queued_pc; | |
317 | idefloppy_blockpc_cmd(floppy, pc, rq); | |
318 | } else { | |
319 | blk_dump_rq_flags(rq, PFX "unsupported command in queue"); | |
320 | ide_floppy_end_request(drive, 0, 0); | |
321 | return ide_stopped; | |
322 | } | |
323 | ||
324 | if (blk_fs_request(rq) || pc->req_xfer) { | |
325 | ide_init_sg_cmd(drive, rq); | |
326 | ide_map_sg(drive, rq); | |
327 | } | |
328 | ||
329 | pc->sg = hwif->sg_table; | |
330 | pc->sg_cnt = hwif->sg_nents; | |
331 | ||
332 | pc->rq = rq; | |
333 | ||
334 | return idefloppy_issue_pc(drive, pc); | |
335 | } | |
336 | ||
337 | /* | |
338 | * Look at the flexible disk page parameters. We ignore the CHS capacity | |
339 | * parameters and use the LBA parameters instead. | |
340 | */ | |
341 | static int ide_floppy_get_flexible_disk_page(ide_drive_t *drive, | |
342 | struct ide_atapi_pc *pc) | |
343 | { | |
344 | struct ide_disk_obj *floppy = drive->driver_data; | |
345 | struct gendisk *disk = floppy->disk; | |
346 | u8 *page; | |
347 | int capacity, lba_capacity; | |
348 | u16 transfer_rate, sector_size, cyls, rpm; | |
349 | u8 heads, sectors; | |
350 | ||
351 | ide_floppy_create_mode_sense_cmd(pc, IDEFLOPPY_FLEXIBLE_DISK_PAGE); | |
352 | ||
353 | if (ide_queue_pc_tail(drive, disk, pc)) { | |
354 | printk(KERN_ERR PFX "Can't get flexible disk page params\n"); | |
355 | return 1; | |
356 | } | |
357 | ||
358 | if (pc->buf[3] & 0x80) | |
359 | drive->dev_flags |= IDE_DFLAG_WP; | |
360 | else | |
361 | drive->dev_flags &= ~IDE_DFLAG_WP; | |
362 | ||
363 | set_disk_ro(disk, !!(drive->dev_flags & IDE_DFLAG_WP)); | |
364 | ||
365 | page = &pc->buf[8]; | |
366 | ||
367 | transfer_rate = be16_to_cpup((__be16 *)&pc->buf[8 + 2]); | |
368 | sector_size = be16_to_cpup((__be16 *)&pc->buf[8 + 6]); | |
369 | cyls = be16_to_cpup((__be16 *)&pc->buf[8 + 8]); | |
370 | rpm = be16_to_cpup((__be16 *)&pc->buf[8 + 28]); | |
371 | heads = pc->buf[8 + 4]; | |
372 | sectors = pc->buf[8 + 5]; | |
373 | ||
374 | capacity = cyls * heads * sectors * sector_size; | |
375 | ||
376 | if (memcmp(page, &floppy->flexible_disk_page, 32)) | |
377 | printk(KERN_INFO PFX "%s: %dkB, %d/%d/%d CHS, %d kBps, " | |
378 | "%d sector size, %d rpm\n", | |
379 | drive->name, capacity / 1024, cyls, heads, | |
380 | sectors, transfer_rate / 8, sector_size, rpm); | |
381 | ||
382 | memcpy(&floppy->flexible_disk_page, page, 32); | |
383 | drive->bios_cyl = cyls; | |
384 | drive->bios_head = heads; | |
385 | drive->bios_sect = sectors; | |
386 | lba_capacity = floppy->blocks * floppy->block_size; | |
387 | ||
388 | if (capacity < lba_capacity) { | |
389 | printk(KERN_NOTICE PFX "%s: The disk reports a capacity of %d " | |
390 | "bytes, but the drive only handles %d\n", | |
391 | drive->name, lba_capacity, capacity); | |
392 | floppy->blocks = floppy->block_size ? | |
393 | capacity / floppy->block_size : 0; | |
394 | drive->capacity64 = floppy->blocks * floppy->bs_factor; | |
395 | } | |
396 | ||
397 | return 0; | |
398 | } | |
399 | ||
400 | /* | |
401 | * Determine if a media is present in the floppy drive, and if so, its LBA | |
402 | * capacity. | |
403 | */ | |
404 | static int ide_floppy_get_capacity(ide_drive_t *drive) | |
405 | { | |
406 | struct ide_disk_obj *floppy = drive->driver_data; | |
407 | struct gendisk *disk = floppy->disk; | |
408 | struct ide_atapi_pc pc; | |
409 | u8 *cap_desc; | |
410 | u8 header_len, desc_cnt; | |
411 | int i, rc = 1, blocks, length; | |
412 | ||
413 | drive->bios_cyl = 0; | |
414 | drive->bios_head = drive->bios_sect = 0; | |
415 | floppy->blocks = 0; | |
416 | floppy->bs_factor = 1; | |
417 | drive->capacity64 = 0; | |
418 | ||
419 | ide_floppy_create_read_capacity_cmd(&pc); | |
420 | if (ide_queue_pc_tail(drive, disk, &pc)) { | |
421 | printk(KERN_ERR PFX "Can't get floppy parameters\n"); | |
422 | return 1; | |
423 | } | |
424 | header_len = pc.buf[3]; | |
425 | cap_desc = &pc.buf[4]; | |
426 | desc_cnt = header_len / 8; /* capacity descriptor of 8 bytes */ | |
427 | ||
428 | for (i = 0; i < desc_cnt; i++) { | |
429 | unsigned int desc_start = 4 + i*8; | |
430 | ||
431 | blocks = be32_to_cpup((__be32 *)&pc.buf[desc_start]); | |
432 | length = be16_to_cpup((__be16 *)&pc.buf[desc_start + 6]); | |
433 | ||
434 | ide_debug_log(IDE_DBG_PROBE, "Descriptor %d: %dkB, %d blocks, " | |
435 | "%d sector size", | |
436 | i, blocks * length / 1024, | |
437 | blocks, length); | |
438 | ||
439 | if (i) | |
440 | continue; | |
441 | /* | |
442 | * the code below is valid only for the 1st descriptor, ie i=0 | |
443 | */ | |
444 | ||
445 | switch (pc.buf[desc_start + 4] & 0x03) { | |
446 | /* Clik! drive returns this instead of CAPACITY_CURRENT */ | |
447 | case CAPACITY_UNFORMATTED: | |
448 | if (!(drive->atapi_flags & IDE_AFLAG_CLIK_DRIVE)) | |
449 | /* | |
450 | * If it is not a clik drive, break out | |
451 | * (maintains previous driver behaviour) | |
452 | */ | |
453 | break; | |
454 | case CAPACITY_CURRENT: | |
455 | /* Normal Zip/LS-120 disks */ | |
456 | if (memcmp(cap_desc, &floppy->cap_desc, 8)) | |
457 | printk(KERN_INFO PFX "%s: %dkB, %d blocks, %d " | |
458 | "sector size\n", | |
459 | drive->name, blocks * length / 1024, | |
460 | blocks, length); | |
461 | memcpy(&floppy->cap_desc, cap_desc, 8); | |
462 | ||
463 | if (!length || length % 512) { | |
464 | printk(KERN_NOTICE PFX "%s: %d bytes block size" | |
465 | " not supported\n", drive->name, length); | |
466 | } else { | |
467 | floppy->blocks = blocks; | |
468 | floppy->block_size = length; | |
469 | floppy->bs_factor = length / 512; | |
470 | if (floppy->bs_factor != 1) | |
471 | printk(KERN_NOTICE PFX "%s: Warning: " | |
472 | "non 512 bytes block size not " | |
473 | "fully supported\n", | |
474 | drive->name); | |
475 | drive->capacity64 = | |
476 | floppy->blocks * floppy->bs_factor; | |
477 | rc = 0; | |
478 | } | |
479 | break; | |
480 | case CAPACITY_NO_CARTRIDGE: | |
481 | /* | |
482 | * This is a KERN_ERR so it appears on screen | |
483 | * for the user to see | |
484 | */ | |
485 | printk(KERN_ERR PFX "%s: No disk in drive\n", | |
486 | drive->name); | |
487 | break; | |
488 | case CAPACITY_INVALID: | |
489 | printk(KERN_ERR PFX "%s: Invalid capacity for disk " | |
490 | "in drive\n", drive->name); | |
491 | break; | |
492 | } | |
493 | ide_debug_log(IDE_DBG_PROBE, "Descriptor 0 Code: %d", | |
494 | pc.buf[desc_start + 4] & 0x03); | |
495 | } | |
496 | ||
497 | /* Clik! disk does not support get_flexible_disk_page */ | |
498 | if (!(drive->atapi_flags & IDE_AFLAG_CLIK_DRIVE)) | |
499 | (void) ide_floppy_get_flexible_disk_page(drive, &pc); | |
500 | ||
501 | return rc; | |
502 | } | |
503 | ||
504 | static void ide_floppy_setup(ide_drive_t *drive) | |
505 | { | |
506 | struct ide_disk_obj *floppy = drive->driver_data; | |
507 | u16 *id = drive->id; | |
508 | ||
509 | drive->pc_callback = ide_floppy_callback; | |
510 | drive->pc_update_buffers = idefloppy_update_buffers; | |
511 | drive->pc_io_buffers = ide_io_buffers; | |
512 | ||
513 | /* | |
514 | * We used to check revisions here. At this point however I'm giving up. | |
515 | * Just assume they are all broken, its easier. | |
516 | * | |
517 | * The actual reason for the workarounds was likely a driver bug after | |
518 | * all rather than a firmware bug, and the workaround below used to hide | |
519 | * it. It should be fixed as of version 1.9, but to be on the safe side | |
520 | * we'll leave the limitation below for the 2.2.x tree. | |
521 | */ | |
522 | if (!strncmp((char *)&id[ATA_ID_PROD], "IOMEGA ZIP 100 ATAPI", 20)) { | |
523 | drive->atapi_flags |= IDE_AFLAG_ZIP_DRIVE; | |
524 | /* This value will be visible in the /proc/ide/hdx/settings */ | |
525 | drive->pc_delay = IDEFLOPPY_PC_DELAY; | |
526 | blk_queue_max_sectors(drive->queue, 64); | |
527 | } | |
528 | ||
529 | /* | |
530 | * Guess what? The IOMEGA Clik! drive also needs the above fix. It makes | |
531 | * nasty clicking noises without it, so please don't remove this. | |
532 | */ | |
533 | if (strncmp((char *)&id[ATA_ID_PROD], "IOMEGA Clik!", 11) == 0) { | |
534 | blk_queue_max_sectors(drive->queue, 64); | |
535 | drive->atapi_flags |= IDE_AFLAG_CLIK_DRIVE; | |
536 | /* IOMEGA Clik! drives do not support lock/unlock commands */ | |
537 | drive->dev_flags &= ~IDE_DFLAG_DOORLOCKING; | |
538 | } | |
539 | ||
540 | (void) ide_floppy_get_capacity(drive); | |
541 | ||
542 | ide_proc_register_driver(drive, floppy->driver); | |
543 | ||
544 | drive->dev_flags |= IDE_DFLAG_ATTACH; | |
545 | } | |
546 | ||
547 | static void ide_floppy_flush(ide_drive_t *drive) | |
548 | { | |
549 | } | |
550 | ||
551 | static int ide_floppy_init_media(ide_drive_t *drive, struct gendisk *disk) | |
552 | { | |
553 | int ret = 0; | |
554 | ||
555 | if (ide_do_test_unit_ready(drive, disk)) | |
556 | ide_do_start_stop(drive, disk, 1); | |
557 | ||
558 | ret = ide_floppy_get_capacity(drive); | |
559 | ||
560 | set_capacity(disk, ide_gd_capacity(drive)); | |
561 | ||
562 | return ret; | |
563 | } | |
564 | ||
565 | const struct ide_disk_ops ide_atapi_disk_ops = { | |
566 | .check = ide_check_atapi_device, | |
567 | .get_capacity = ide_floppy_get_capacity, | |
568 | .setup = ide_floppy_setup, | |
569 | .flush = ide_floppy_flush, | |
570 | .init_media = ide_floppy_init_media, | |
571 | .set_doorlock = ide_set_media_lock, | |
572 | .do_request = ide_floppy_do_request, | |
573 | .end_request = ide_floppy_end_request, | |
574 | .ioctl = ide_floppy_ioctl, | |
575 | }; |