Commit | Line | Data |
---|---|---|
1da177e4 | 1 | /* |
d3f20848 BP |
2 | * IDE ATAPI floppy driver. |
3 | * | |
59bca8cc BZ |
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 | |
0571c7a4 | 7 | * |
1da177e4 LT |
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 | * | |
d3f20848 BP |
14 | * For a historical changelog see |
15 | * Documentation/ide/ChangeLog.ide-floppy.1996-2002 | |
1da177e4 LT |
16 | */ |
17 | ||
1da177e4 LT |
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> | |
1da177e4 LT |
28 | #include <linux/cdrom.h> |
29 | #include <linux/ide.h> | |
3ceca727 | 30 | #include <linux/hdreg.h> |
1da177e4 | 31 | #include <linux/bitops.h> |
cf8b8975 | 32 | #include <linux/mutex.h> |
b98b3409 | 33 | #include <linux/scatterlist.h> |
1da177e4 | 34 | |
89636af2 BZ |
35 | #include <scsi/scsi_ioctl.h> |
36 | ||
1da177e4 | 37 | #include <asm/byteorder.h> |
7e8b163b BP |
38 | #include <linux/uaccess.h> |
39 | #include <linux/io.h> | |
1da177e4 LT |
40 | #include <asm/unaligned.h> |
41 | ||
0127854d BZ |
42 | #include "ide-floppy.h" |
43 | ||
1da177e4 | 44 | /* |
0571c7a4 BP |
45 | * After each failed packet command we issue a request sense command and retry |
46 | * the packet command IDEFLOPPY_MAX_PC_RETRIES times. | |
1da177e4 LT |
47 | */ |
48 | #define IDEFLOPPY_MAX_PC_RETRIES 3 | |
49 | ||
194ec0c0 | 50 | /* format capacities descriptor codes */ |
1da177e4 LT |
51 | #define CAPACITY_INVALID 0x00 |
52 | #define CAPACITY_UNFORMATTED 0x01 | |
53 | #define CAPACITY_CURRENT 0x02 | |
54 | #define CAPACITY_NO_CARTRIDGE 0x03 | |
55 | ||
baf08f0b BZ |
56 | /* |
57 | * The following delay solves a problem with ATAPI Zip 100 drive where BSY bit | |
58 | * was apparently being deasserted before the unit was ready to receive data. | |
59 | */ | |
60 | #define IDEFLOPPY_PC_DELAY (HZ/20) /* default delay for ZIP 100 (50ms) */ | |
1da177e4 | 61 | |
03a2faae | 62 | static int ide_floppy_callback(ide_drive_t *drive, int dsc) |
1da177e4 | 63 | { |
0df96277 | 64 | struct ide_disk_obj *floppy = drive->driver_data; |
2b9efba4 | 65 | struct ide_atapi_pc *pc = drive->pc; |
313afea7 | 66 | struct request *rq = pc->rq; |
81f49382 | 67 | int uptodate = pc->error ? 0 : 1; |
1da177e4 | 68 | |
088b1b88 | 69 | ide_debug_log(IDE_DBG_FUNC, "enter"); |
bcc77d9c | 70 | |
5e2040fd BZ |
71 | if (drive->failed_pc == pc) |
72 | drive->failed_pc = NULL; | |
dd2e9a03 | 73 | |
81f49382 | 74 | if (pc->c[0] == GPCMD_READ_10 || pc->c[0] == GPCMD_WRITE_10 || |
f17bfe79 | 75 | rq->cmd_type == REQ_TYPE_BLOCK_PC) |
81f49382 BP |
76 | uptodate = 1; /* FIXME */ |
77 | else if (pc->c[0] == GPCMD_REQUEST_SENSE) { | |
ae3a8387 BP |
78 | |
79 | u8 *buf = bio_data(rq->bio); | |
a6ff2d3b | 80 | |
81f49382 BP |
81 | if (!pc->error) { |
82 | floppy->sense_key = buf[2] & 0x0F; | |
83 | floppy->asc = buf[12]; | |
84 | floppy->ascq = buf[13]; | |
85 | floppy->progress_indication = buf[15] & 0x80 ? | |
86 | (u16)get_unaligned((u16 *)&buf[16]) : 0x10000; | |
a6ff2d3b | 87 | |
5e2040fd | 88 | if (drive->failed_pc) |
088b1b88 | 89 | ide_debug_log(IDE_DBG_PC, "pc = %x", |
5e2040fd | 90 | drive->failed_pc->c[0]); |
bcc77d9c | 91 | |
7b355726 | 92 | ide_debug_log(IDE_DBG_SENSE, "sense key = %x, asc = %x," |
088b1b88 | 93 | "ascq = %x", floppy->sense_key, |
7b355726 | 94 | floppy->asc, floppy->ascq); |
81f49382 | 95 | } else |
7b355726 BP |
96 | printk(KERN_ERR PFX "Error in REQUEST SENSE itself - " |
97 | "Aborting request!\n"); | |
81f49382 | 98 | } |
1da177e4 | 99 | |
33659ebb | 100 | if (rq->cmd_type == REQ_TYPE_SPECIAL) |
313afea7 | 101 | rq->errors = uptodate ? 0 : IDE_DRV_ERROR_GENERAL; |
03a2faae BZ |
102 | |
103 | return uptodate; | |
1da177e4 LT |
104 | } |
105 | ||
0df96277 | 106 | static void ide_floppy_report_error(struct ide_disk_obj *floppy, |
8e555123 | 107 | struct ide_atapi_pc *pc) |
1da177e4 | 108 | { |
25985edc | 109 | /* suppress error messages resulting from Medium not present */ |
1da177e4 LT |
110 | if (floppy->sense_key == 0x02 && |
111 | floppy->asc == 0x3a && | |
112 | floppy->ascq == 0x00) | |
d652c138 BP |
113 | return; |
114 | ||
7b355726 | 115 | printk(KERN_ERR PFX "%s: I/O error, pc = %2x, key = %2x, " |
d652c138 BP |
116 | "asc = %2x, ascq = %2x\n", |
117 | floppy->drive->name, pc->c[0], floppy->sense_key, | |
118 | floppy->asc, floppy->ascq); | |
119 | ||
1da177e4 LT |
120 | } |
121 | ||
b788ee9c BZ |
122 | static ide_startstop_t ide_floppy_issue_pc(ide_drive_t *drive, |
123 | struct ide_cmd *cmd, | |
124 | struct ide_atapi_pc *pc) | |
1da177e4 | 125 | { |
0df96277 | 126 | struct ide_disk_obj *floppy = drive->driver_data; |
1da177e4 | 127 | |
5e2040fd | 128 | if (drive->failed_pc == NULL && |
30d67099 | 129 | pc->c[0] != GPCMD_REQUEST_SENSE) |
5e2040fd | 130 | drive->failed_pc = pc; |
2b9efba4 | 131 | |
1da177e4 | 132 | /* Set the current packet command */ |
2b9efba4 | 133 | drive->pc = pc; |
1da177e4 | 134 | |
757ced89 | 135 | if (pc->retries > IDEFLOPPY_MAX_PC_RETRIES) { |
eb6a61bb TH |
136 | unsigned int done = blk_rq_bytes(drive->hwif->rq); |
137 | ||
6e5fa7b8 | 138 | if (!(pc->flags & PC_FLAG_SUPPRESS_ERROR)) |
757ced89 | 139 | ide_floppy_report_error(floppy, pc); |
eb6a61bb | 140 | |
757ced89 | 141 | /* Giving up */ |
c152cc1a | 142 | pc->error = IDE_DRV_ERROR_GENERAL; |
757ced89 | 143 | |
5e2040fd | 144 | drive->failed_pc = NULL; |
b14c7212 | 145 | drive->pc_callback(drive, 0); |
eb6a61bb | 146 | ide_complete_rq(drive, -EIO, done); |
1da177e4 LT |
147 | return ide_stopped; |
148 | } | |
149 | ||
088b1b88 | 150 | ide_debug_log(IDE_DBG_FUNC, "retry #%d", pc->retries); |
1da177e4 LT |
151 | |
152 | pc->retries++; | |
1da177e4 | 153 | |
b788ee9c | 154 | return ide_issue_pc(drive, cmd); |
1da177e4 LT |
155 | } |
156 | ||
0127854d | 157 | void ide_floppy_create_read_capacity_cmd(struct ide_atapi_pc *pc) |
1da177e4 | 158 | { |
7bf7420a | 159 | ide_init_pc(pc); |
30d67099 | 160 | pc->c[0] = GPCMD_READ_FORMAT_CAPACITIES; |
1da177e4 LT |
161 | pc->c[7] = 255; |
162 | pc->c[8] = 255; | |
8e555123 | 163 | pc->req_xfer = 255; |
1da177e4 LT |
164 | } |
165 | ||
0571c7a4 | 166 | /* A mode sense command is used to "sense" floppy parameters. */ |
0127854d | 167 | void ide_floppy_create_mode_sense_cmd(struct ide_atapi_pc *pc, u8 page_code) |
1da177e4 | 168 | { |
24a5d703 | 169 | u16 length = 8; /* sizeof(Mode Parameter Header) = 8 Bytes */ |
0571c7a4 | 170 | |
7bf7420a | 171 | ide_init_pc(pc); |
30d67099 | 172 | pc->c[0] = GPCMD_MODE_SENSE_10; |
1da177e4 | 173 | pc->c[1] = 0; |
4de4b9e1 | 174 | pc->c[2] = page_code; |
1da177e4 LT |
175 | |
176 | switch (page_code) { | |
0571c7a4 BP |
177 | case IDEFLOPPY_CAPABILITIES_PAGE: |
178 | length += 12; | |
179 | break; | |
180 | case IDEFLOPPY_FLEXIBLE_DISK_PAGE: | |
181 | length += 32; | |
182 | break; | |
183 | default: | |
7b355726 | 184 | printk(KERN_ERR PFX "unsupported page code in %s\n", __func__); |
1da177e4 | 185 | } |
8f622430 | 186 | put_unaligned(cpu_to_be16(length), (u16 *) &pc->c[7]); |
8e555123 | 187 | pc->req_xfer = length; |
1da177e4 LT |
188 | } |
189 | ||
7b355726 | 190 | static void idefloppy_create_rw_cmd(ide_drive_t *drive, |
8e555123 | 191 | struct ide_atapi_pc *pc, struct request *rq, |
ae7e8ddc | 192 | unsigned long sector) |
1da177e4 | 193 | { |
0df96277 | 194 | struct ide_disk_obj *floppy = drive->driver_data; |
1da177e4 | 195 | int block = sector / floppy->bs_factor; |
9780e2dd | 196 | int blocks = blk_rq_sectors(rq) / floppy->bs_factor; |
1da177e4 LT |
197 | int cmd = rq_data_dir(rq); |
198 | ||
088b1b88 | 199 | ide_debug_log(IDE_DBG_FUNC, "block: %d, blocks: %d", block, blocks); |
1da177e4 | 200 | |
7bf7420a | 201 | ide_init_pc(pc); |
ae7e8ddc BP |
202 | pc->c[0] = cmd == READ ? GPCMD_READ_10 : GPCMD_WRITE_10; |
203 | put_unaligned(cpu_to_be16(blocks), (unsigned short *)&pc->c[7]); | |
8f622430 | 204 | put_unaligned(cpu_to_be32(block), (unsigned int *) &pc->c[2]); |
ae7e8ddc | 205 | |
20cd93be BP |
206 | memcpy(rq->cmd, pc->c, 12); |
207 | ||
1da177e4 | 208 | pc->rq = rq; |
7b6d91da | 209 | if (rq->cmd_flags & REQ_WRITE) |
6e5fa7b8 | 210 | pc->flags |= PC_FLAG_WRITING; |
19f52a78 | 211 | |
5e331095 | 212 | pc->flags |= PC_FLAG_DMA_OK; |
1da177e4 LT |
213 | } |
214 | ||
0df96277 | 215 | static void idefloppy_blockpc_cmd(struct ide_disk_obj *floppy, |
8e555123 | 216 | struct ide_atapi_pc *pc, struct request *rq) |
1da177e4 | 217 | { |
7bf7420a | 218 | ide_init_pc(pc); |
1da177e4 | 219 | memcpy(pc->c, rq->cmd, sizeof(pc->c)); |
3d6392cf | 220 | pc->rq = rq; |
34b7d2c9 | 221 | if (blk_rq_bytes(rq)) { |
5e331095 | 222 | pc->flags |= PC_FLAG_DMA_OK; |
8968932e TH |
223 | if (rq_data_dir(rq) == WRITE) |
224 | pc->flags |= PC_FLAG_WRITING; | |
225 | } | |
1da177e4 LT |
226 | } |
227 | ||
806f80a6 BZ |
228 | static ide_startstop_t ide_floppy_do_request(ide_drive_t *drive, |
229 | struct request *rq, sector_t block) | |
1da177e4 | 230 | { |
0df96277 | 231 | struct ide_disk_obj *floppy = drive->driver_data; |
b788ee9c | 232 | struct ide_cmd cmd; |
8e555123 | 233 | struct ide_atapi_pc *pc; |
1da177e4 | 234 | |
349d12a1 BZ |
235 | ide_debug_log(IDE_DBG_FUNC, "enter, cmd: 0x%x\n", rq->cmd[0]); |
236 | ||
088b1b88 BP |
237 | if (drive->debug_mask & IDE_DBG_RQ) |
238 | blk_dump_rq_flags(rq, (rq->rq_disk | |
239 | ? rq->rq_disk->disk_name | |
240 | : "dev?")); | |
1da177e4 LT |
241 | |
242 | if (rq->errors >= ERROR_MAX) { | |
313afea7 | 243 | if (drive->failed_pc) { |
5e2040fd | 244 | ide_floppy_report_error(floppy, drive->failed_pc); |
313afea7 BZ |
245 | drive->failed_pc = NULL; |
246 | } else | |
7b355726 BP |
247 | printk(KERN_ERR PFX "%s: I/O error\n", drive->name); |
248 | ||
33659ebb | 249 | if (rq->cmd_type == REQ_TYPE_SPECIAL) { |
6902a533 | 250 | rq->errors = 0; |
f974b196 | 251 | ide_complete_rq(drive, 0, blk_rq_bytes(rq)); |
313afea7 BZ |
252 | return ide_stopped; |
253 | } else | |
254 | goto out_end; | |
1da177e4 | 255 | } |
33659ebb CH |
256 | |
257 | switch (rq->cmd_type) { | |
258 | case REQ_TYPE_FS: | |
9780e2dd TH |
259 | if (((long)blk_rq_pos(rq) % floppy->bs_factor) || |
260 | (blk_rq_sectors(rq) % floppy->bs_factor)) { | |
7b355726 BP |
261 | printk(KERN_ERR PFX "%s: unsupported r/w rq size\n", |
262 | drive->name); | |
313afea7 | 263 | goto out_end; |
1da177e4 | 264 | } |
2e8a6f89 | 265 | pc = &floppy->queued_pc; |
806f80a6 | 266 | idefloppy_create_rw_cmd(drive, pc, rq, (unsigned long)block); |
33659ebb CH |
267 | break; |
268 | case REQ_TYPE_SPECIAL: | |
269 | case REQ_TYPE_SENSE: | |
ac0b0113 | 270 | pc = (struct ide_atapi_pc *)rq->special; |
33659ebb CH |
271 | break; |
272 | case REQ_TYPE_BLOCK_PC: | |
2e8a6f89 | 273 | pc = &floppy->queued_pc; |
3d6392cf | 274 | idefloppy_blockpc_cmd(floppy, pc, rq); |
33659ebb CH |
275 | break; |
276 | default: | |
2c7eaa43 | 277 | BUG(); |
33659ebb | 278 | } |
1da177e4 | 279 | |
06875320 BP |
280 | ide_prep_sense(drive, rq); |
281 | ||
b788ee9c BZ |
282 | memset(&cmd, 0, sizeof(cmd)); |
283 | ||
22981694 | 284 | if (rq_data_dir(rq)) |
b788ee9c BZ |
285 | cmd.tf_flags |= IDE_TFLAG_WRITE; |
286 | ||
287 | cmd.rq = rq; | |
22981694 | 288 | |
33659ebb | 289 | if (rq->cmd_type == REQ_TYPE_FS || blk_rq_bytes(rq)) { |
dfb7e621 | 290 | ide_init_sg_cmd(&cmd, blk_rq_bytes(rq)); |
b788ee9c | 291 | ide_map_sg(drive, &cmd); |
3eb76c1c | 292 | } |
b98b3409 | 293 | |
1da177e4 | 294 | pc->rq = rq; |
5d41893c | 295 | |
b788ee9c | 296 | return ide_floppy_issue_pc(drive, &cmd, pc); |
313afea7 BZ |
297 | out_end: |
298 | drive->failed_pc = NULL; | |
33659ebb | 299 | if (rq->cmd_type != REQ_TYPE_FS && rq->errors == 0) |
89f78b32 | 300 | rq->errors = -EIO; |
5e955245 | 301 | ide_complete_rq(drive, -EIO, blk_rq_bytes(rq)); |
313afea7 | 302 | return ide_stopped; |
1da177e4 LT |
303 | } |
304 | ||
1da177e4 | 305 | /* |
8e81bbba BP |
306 | * Look at the flexible disk page parameters. We ignore the CHS capacity |
307 | * parameters and use the LBA parameters instead. | |
1da177e4 | 308 | */ |
07bd3f47 LT |
309 | static int ide_floppy_get_flexible_disk_page(ide_drive_t *drive, |
310 | struct ide_atapi_pc *pc) | |
1da177e4 | 311 | { |
0df96277 | 312 | struct ide_disk_obj *floppy = drive->driver_data; |
2ac07d92 | 313 | struct gendisk *disk = floppy->disk; |
d9a68307 | 314 | u8 *page, buf[40]; |
1da177e4 | 315 | int capacity, lba_capacity; |
8e81bbba BP |
316 | u16 transfer_rate, sector_size, cyls, rpm; |
317 | u8 heads, sectors; | |
1da177e4 | 318 | |
07bd3f47 | 319 | ide_floppy_create_mode_sense_cmd(pc, IDEFLOPPY_FLEXIBLE_DISK_PAGE); |
8e81bbba | 320 | |
d9a68307 | 321 | if (ide_queue_pc_tail(drive, disk, pc, buf, pc->req_xfer)) { |
7b355726 | 322 | printk(KERN_ERR PFX "Can't get flexible disk page params\n"); |
1da177e4 LT |
323 | return 1; |
324 | } | |
49cac39e | 325 | |
d9a68307 | 326 | if (buf[3] & 0x80) |
da167876 | 327 | drive->dev_flags |= IDE_DFLAG_WP; |
49cac39e | 328 | else |
da167876 | 329 | drive->dev_flags &= ~IDE_DFLAG_WP; |
49cac39e | 330 | |
da167876 | 331 | set_disk_ro(disk, !!(drive->dev_flags & IDE_DFLAG_WP)); |
49cac39e | 332 | |
d9a68307 | 333 | page = &buf[8]; |
8e81bbba | 334 | |
d9a68307 BP |
335 | transfer_rate = be16_to_cpup((__be16 *)&buf[8 + 2]); |
336 | sector_size = be16_to_cpup((__be16 *)&buf[8 + 6]); | |
337 | cyls = be16_to_cpup((__be16 *)&buf[8 + 8]); | |
338 | rpm = be16_to_cpup((__be16 *)&buf[8 + 28]); | |
339 | heads = buf[8 + 4]; | |
340 | sectors = buf[8 + 5]; | |
8e81bbba BP |
341 | |
342 | capacity = cyls * heads * sectors * sector_size; | |
343 | ||
344 | if (memcmp(page, &floppy->flexible_disk_page, 32)) | |
7b355726 | 345 | printk(KERN_INFO PFX "%s: %dkB, %d/%d/%d CHS, %d kBps, " |
1da177e4 | 346 | "%d sector size, %d rpm\n", |
8e81bbba BP |
347 | drive->name, capacity / 1024, cyls, heads, |
348 | sectors, transfer_rate / 8, sector_size, rpm); | |
349 | ||
350 | memcpy(&floppy->flexible_disk_page, page, 32); | |
351 | drive->bios_cyl = cyls; | |
352 | drive->bios_head = heads; | |
353 | drive->bios_sect = sectors; | |
1da177e4 | 354 | lba_capacity = floppy->blocks * floppy->block_size; |
8e81bbba | 355 | |
1da177e4 | 356 | if (capacity < lba_capacity) { |
7b355726 | 357 | printk(KERN_NOTICE PFX "%s: The disk reports a capacity of %d " |
1da177e4 LT |
358 | "bytes, but the drive only handles %d\n", |
359 | drive->name, lba_capacity, capacity); | |
8e81bbba BP |
360 | floppy->blocks = floppy->block_size ? |
361 | capacity / floppy->block_size : 0; | |
6f84083b | 362 | drive->capacity64 = floppy->blocks * floppy->bs_factor; |
1da177e4 | 363 | } |
6f84083b | 364 | |
1da177e4 LT |
365 | return 0; |
366 | } | |
367 | ||
1da177e4 | 368 | /* |
194ec0c0 BP |
369 | * Determine if a media is present in the floppy drive, and if so, its LBA |
370 | * capacity. | |
1da177e4 | 371 | */ |
806f80a6 | 372 | static int ide_floppy_get_capacity(ide_drive_t *drive) |
1da177e4 | 373 | { |
0df96277 | 374 | struct ide_disk_obj *floppy = drive->driver_data; |
2ac07d92 | 375 | struct gendisk *disk = floppy->disk; |
8e555123 | 376 | struct ide_atapi_pc pc; |
194ec0c0 | 377 | u8 *cap_desc; |
41fa9f86 | 378 | u8 pc_buf[256], header_len, desc_cnt; |
194ec0c0 BP |
379 | int i, rc = 1, blocks, length; |
380 | ||
349d12a1 BZ |
381 | ide_debug_log(IDE_DBG_FUNC, "enter"); |
382 | ||
1da177e4 LT |
383 | drive->bios_cyl = 0; |
384 | drive->bios_head = drive->bios_sect = 0; | |
fdb77da4 AC |
385 | floppy->blocks = 0; |
386 | floppy->bs_factor = 1; | |
6f84083b | 387 | drive->capacity64 = 0; |
1da177e4 | 388 | |
0127854d | 389 | ide_floppy_create_read_capacity_cmd(&pc); |
b13345f3 | 390 | if (ide_queue_pc_tail(drive, disk, &pc, pc_buf, pc.req_xfer)) { |
7b355726 | 391 | printk(KERN_ERR PFX "Can't get floppy parameters\n"); |
1da177e4 LT |
392 | return 1; |
393 | } | |
b13345f3 BP |
394 | header_len = pc_buf[3]; |
395 | cap_desc = &pc_buf[4]; | |
194ec0c0 BP |
396 | desc_cnt = header_len / 8; /* capacity descriptor of 8 bytes */ |
397 | ||
398 | for (i = 0; i < desc_cnt; i++) { | |
399 | unsigned int desc_start = 4 + i*8; | |
400 | ||
b13345f3 BP |
401 | blocks = be32_to_cpup((__be32 *)&pc_buf[desc_start]); |
402 | length = be16_to_cpup((__be16 *)&pc_buf[desc_start + 6]); | |
194ec0c0 | 403 | |
7b355726 | 404 | ide_debug_log(IDE_DBG_PROBE, "Descriptor %d: %dkB, %d blocks, " |
088b1b88 BP |
405 | "%d sector size", |
406 | i, blocks * length / 1024, | |
407 | blocks, length); | |
1da177e4 | 408 | |
194ec0c0 BP |
409 | if (i) |
410 | continue; | |
411 | /* | |
412 | * the code below is valid only for the 1st descriptor, ie i=0 | |
413 | */ | |
1da177e4 | 414 | |
b13345f3 | 415 | switch (pc_buf[desc_start + 4] & 0x03) { |
1da177e4 LT |
416 | /* Clik! drive returns this instead of CAPACITY_CURRENT */ |
417 | case CAPACITY_UNFORMATTED: | |
ea68d270 | 418 | if (!(drive->atapi_flags & IDE_AFLAG_CLIK_DRIVE)) |
0571c7a4 | 419 | /* |
1da177e4 LT |
420 | * If it is not a clik drive, break out |
421 | * (maintains previous driver behaviour) | |
422 | */ | |
423 | break; | |
424 | case CAPACITY_CURRENT: | |
425 | /* Normal Zip/LS-120 disks */ | |
194ec0c0 | 426 | if (memcmp(cap_desc, &floppy->cap_desc, 8)) |
7b355726 BP |
427 | printk(KERN_INFO PFX "%s: %dkB, %d blocks, %d " |
428 | "sector size\n", | |
429 | drive->name, blocks * length / 1024, | |
430 | blocks, length); | |
194ec0c0 BP |
431 | memcpy(&floppy->cap_desc, cap_desc, 8); |
432 | ||
1da177e4 | 433 | if (!length || length % 512) { |
7b355726 BP |
434 | printk(KERN_NOTICE PFX "%s: %d bytes block size" |
435 | " not supported\n", drive->name, length); | |
1da177e4 | 436 | } else { |
194ec0c0 BP |
437 | floppy->blocks = blocks; |
438 | floppy->block_size = length; | |
439 | floppy->bs_factor = length / 512; | |
440 | if (floppy->bs_factor != 1) | |
7b355726 BP |
441 | printk(KERN_NOTICE PFX "%s: Warning: " |
442 | "non 512 bytes block size not " | |
443 | "fully supported\n", | |
444 | drive->name); | |
6f84083b BZ |
445 | drive->capacity64 = |
446 | floppy->blocks * floppy->bs_factor; | |
194ec0c0 | 447 | rc = 0; |
1da177e4 LT |
448 | } |
449 | break; | |
450 | case CAPACITY_NO_CARTRIDGE: | |
451 | /* | |
452 | * This is a KERN_ERR so it appears on screen | |
453 | * for the user to see | |
454 | */ | |
7b355726 BP |
455 | printk(KERN_ERR PFX "%s: No disk in drive\n", |
456 | drive->name); | |
1da177e4 LT |
457 | break; |
458 | case CAPACITY_INVALID: | |
7b355726 | 459 | printk(KERN_ERR PFX "%s: Invalid capacity for disk " |
1da177e4 LT |
460 | "in drive\n", drive->name); |
461 | break; | |
462 | } | |
088b1b88 | 463 | ide_debug_log(IDE_DBG_PROBE, "Descriptor 0 Code: %d", |
b13345f3 | 464 | pc_buf[desc_start + 4] & 0x03); |
1da177e4 LT |
465 | } |
466 | ||
467 | /* Clik! disk does not support get_flexible_disk_page */ | |
ea68d270 | 468 | if (!(drive->atapi_flags & IDE_AFLAG_CLIK_DRIVE)) |
07bd3f47 | 469 | (void) ide_floppy_get_flexible_disk_page(drive, &pc); |
1da177e4 | 470 | |
1da177e4 LT |
471 | return rc; |
472 | } | |
473 | ||
806f80a6 | 474 | static void ide_floppy_setup(ide_drive_t *drive) |
1da177e4 | 475 | { |
806f80a6 | 476 | struct ide_disk_obj *floppy = drive->driver_data; |
4dde4492 | 477 | u16 *id = drive->id; |
2e8a6f89 | 478 | |
85e39035 | 479 | drive->pc_callback = ide_floppy_callback; |
3ad6776c | 480 | |
1da177e4 | 481 | /* |
0571c7a4 BP |
482 | * We used to check revisions here. At this point however I'm giving up. |
483 | * Just assume they are all broken, its easier. | |
1da177e4 | 484 | * |
0571c7a4 BP |
485 | * The actual reason for the workarounds was likely a driver bug after |
486 | * all rather than a firmware bug, and the workaround below used to hide | |
487 | * it. It should be fixed as of version 1.9, but to be on the safe side | |
488 | * we'll leave the limitation below for the 2.2.x tree. | |
1da177e4 | 489 | */ |
4dde4492 | 490 | if (!strncmp((char *)&id[ATA_ID_PROD], "IOMEGA ZIP 100 ATAPI", 20)) { |
ea68d270 | 491 | drive->atapi_flags |= IDE_AFLAG_ZIP_DRIVE; |
1da177e4 | 492 | /* This value will be visible in the /proc/ide/hdx/settings */ |
baf08f0b | 493 | drive->pc_delay = IDEFLOPPY_PC_DELAY; |
086fa5ff | 494 | blk_queue_max_hw_sectors(drive->queue, 64); |
1da177e4 LT |
495 | } |
496 | ||
497 | /* | |
0571c7a4 BP |
498 | * Guess what? The IOMEGA Clik! drive also needs the above fix. It makes |
499 | * nasty clicking noises without it, so please don't remove this. | |
500 | */ | |
4dde4492 | 501 | if (strncmp((char *)&id[ATA_ID_PROD], "IOMEGA Clik!", 11) == 0) { |
086fa5ff | 502 | blk_queue_max_hw_sectors(drive->queue, 64); |
ea68d270 | 503 | drive->atapi_flags |= IDE_AFLAG_CLIK_DRIVE; |
0578042d | 504 | /* IOMEGA Clik! drives do not support lock/unlock commands */ |
42619d35 | 505 | drive->dev_flags &= ~IDE_DFLAG_DOORLOCKING; |
1da177e4 LT |
506 | } |
507 | ||
194ec0c0 | 508 | (void) ide_floppy_get_capacity(drive); |
1e874f44 BZ |
509 | |
510 | ide_proc_register_driver(drive, floppy->driver); | |
ae9f9f07 BZ |
511 | |
512 | drive->dev_flags |= IDE_DFLAG_ATTACH; | |
1da177e4 | 513 | } |
806f80a6 BZ |
514 | |
515 | static void ide_floppy_flush(ide_drive_t *drive) | |
516 | { | |
517 | } | |
518 | ||
519 | static int ide_floppy_init_media(ide_drive_t *drive, struct gendisk *disk) | |
520 | { | |
521 | int ret = 0; | |
522 | ||
523 | if (ide_do_test_unit_ready(drive, disk)) | |
524 | ide_do_start_stop(drive, disk, 1); | |
525 | ||
526 | ret = ide_floppy_get_capacity(drive); | |
527 | ||
528 | set_capacity(disk, ide_gd_capacity(drive)); | |
529 | ||
530 | return ret; | |
531 | } | |
532 | ||
533 | const struct ide_disk_ops ide_atapi_disk_ops = { | |
534 | .check = ide_check_atapi_device, | |
535 | .get_capacity = ide_floppy_get_capacity, | |
536 | .setup = ide_floppy_setup, | |
537 | .flush = ide_floppy_flush, | |
538 | .init_media = ide_floppy_init_media, | |
539 | .set_doorlock = ide_set_media_lock, | |
540 | .do_request = ide_floppy_do_request, | |
806f80a6 BZ |
541 | .ioctl = ide_floppy_ioctl, |
542 | }; |