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 | ||
51509eec BZ |
18 | #define DRV_NAME "ide-floppy" |
19 | ||
fc6c5bc7 | 20 | #define IDEFLOPPY_VERSION "1.00" |
1da177e4 | 21 | |
1da177e4 LT |
22 | #include <linux/module.h> |
23 | #include <linux/types.h> | |
24 | #include <linux/string.h> | |
25 | #include <linux/kernel.h> | |
26 | #include <linux/delay.h> | |
27 | #include <linux/timer.h> | |
28 | #include <linux/mm.h> | |
29 | #include <linux/interrupt.h> | |
30 | #include <linux/major.h> | |
31 | #include <linux/errno.h> | |
32 | #include <linux/genhd.h> | |
33 | #include <linux/slab.h> | |
34 | #include <linux/cdrom.h> | |
35 | #include <linux/ide.h> | |
3ceca727 | 36 | #include <linux/hdreg.h> |
1da177e4 | 37 | #include <linux/bitops.h> |
cf8b8975 | 38 | #include <linux/mutex.h> |
b98b3409 | 39 | #include <linux/scatterlist.h> |
1da177e4 | 40 | |
89636af2 BZ |
41 | #include <scsi/scsi_ioctl.h> |
42 | ||
1da177e4 | 43 | #include <asm/byteorder.h> |
7e8b163b BP |
44 | #include <linux/irq.h> |
45 | #include <linux/uaccess.h> | |
46 | #include <linux/io.h> | |
1da177e4 LT |
47 | #include <asm/unaligned.h> |
48 | ||
f373bd82 | 49 | /* define to see debug info */ |
1da177e4 | 50 | #define IDEFLOPPY_DEBUG_LOG 0 |
1da177e4 LT |
51 | |
52 | /* #define IDEFLOPPY_DEBUG(fmt, args...) printk(KERN_INFO fmt, ## args) */ | |
0571c7a4 | 53 | #define IDEFLOPPY_DEBUG(fmt, args...) |
1da177e4 LT |
54 | |
55 | #if IDEFLOPPY_DEBUG_LOG | |
bcc77d9c BP |
56 | #define debug_log(fmt, args...) \ |
57 | printk(KERN_INFO "ide-floppy: " fmt, ## args) | |
1da177e4 | 58 | #else |
0571c7a4 | 59 | #define debug_log(fmt, args...) do {} while (0) |
1da177e4 LT |
60 | #endif |
61 | ||
62 | ||
0571c7a4 | 63 | /* Some drives require a longer irq timeout. */ |
1da177e4 LT |
64 | #define IDEFLOPPY_WAIT_CMD (5 * WAIT_CMD) |
65 | ||
66 | /* | |
0571c7a4 BP |
67 | * After each failed packet command we issue a request sense command and retry |
68 | * the packet command IDEFLOPPY_MAX_PC_RETRIES times. | |
1da177e4 LT |
69 | */ |
70 | #define IDEFLOPPY_MAX_PC_RETRIES 3 | |
71 | ||
72 | /* | |
0571c7a4 BP |
73 | * With each packet command, we allocate a buffer of IDEFLOPPY_PC_BUFFER_SIZE |
74 | * bytes. | |
1da177e4 LT |
75 | */ |
76 | #define IDEFLOPPY_PC_BUFFER_SIZE 256 | |
77 | ||
194ec0c0 | 78 | /* format capacities descriptor codes */ |
1da177e4 LT |
79 | #define CAPACITY_INVALID 0x00 |
80 | #define CAPACITY_UNFORMATTED 0x01 | |
81 | #define CAPACITY_CURRENT 0x02 | |
82 | #define CAPACITY_NO_CARTRIDGE 0x03 | |
83 | ||
84 | /* | |
0571c7a4 BP |
85 | * Most of our global data which we need to save even as we leave the driver |
86 | * due to an interrupt or a timer event is stored in a variable of type | |
87 | * idefloppy_floppy_t, defined below. | |
1da177e4 LT |
88 | */ |
89 | typedef struct ide_floppy_obj { | |
90 | ide_drive_t *drive; | |
91 | ide_driver_t *driver; | |
92 | struct gendisk *disk; | |
93 | struct kref kref; | |
c94964a4 | 94 | unsigned int openers; /* protected by BKL for now */ |
1da177e4 LT |
95 | |
96 | /* Current packet command */ | |
8e555123 | 97 | struct ide_atapi_pc *pc; |
1da177e4 | 98 | /* Last failed packet command */ |
8e555123 | 99 | struct ide_atapi_pc *failed_pc; |
2e8a6f89 BZ |
100 | /* used for blk_{fs,pc}_request() requests */ |
101 | struct ide_atapi_pc queued_pc; | |
394a4c21 | 102 | |
2e8a6f89 | 103 | struct ide_atapi_pc request_sense_pc; |
394a4c21 | 104 | struct request request_sense_rq; |
1da177e4 | 105 | |
0571c7a4 | 106 | /* Last error information */ |
1da177e4 LT |
107 | u8 sense_key, asc, ascq; |
108 | /* delay this long before sending packet command */ | |
109 | u8 ticks; | |
110 | int progress_indication; | |
111 | ||
0571c7a4 | 112 | /* Device information */ |
1da177e4 LT |
113 | /* Current format */ |
114 | int blocks, block_size, bs_factor; | |
194ec0c0 BP |
115 | /* Last format capacity descriptor */ |
116 | u8 cap_desc[8]; | |
1da177e4 | 117 | /* Copy of the flexible disk page */ |
8e81bbba | 118 | u8 flexible_disk_page[32]; |
1da177e4 LT |
119 | /* Write protect */ |
120 | int wp; | |
121 | /* Supports format progress report */ | |
122 | int srfp; | |
1da177e4 LT |
123 | } idefloppy_floppy_t; |
124 | ||
c40d3d38 | 125 | #define IDEFLOPPY_TICKS_DELAY HZ/20 /* default delay for ZIP 100 (50ms) */ |
1da177e4 | 126 | |
0571c7a4 | 127 | /* IOCTLs used in low-level formatting. */ |
1da177e4 LT |
128 | #define IDEFLOPPY_IOCTL_FORMAT_SUPPORTED 0x4600 |
129 | #define IDEFLOPPY_IOCTL_FORMAT_GET_CAPACITY 0x4601 | |
130 | #define IDEFLOPPY_IOCTL_FORMAT_START 0x4602 | |
131 | #define IDEFLOPPY_IOCTL_FORMAT_GET_PROGRESS 0x4603 | |
132 | ||
0571c7a4 | 133 | /* Error code returned in rq->errors to the higher part of the driver. */ |
1da177e4 LT |
134 | #define IDEFLOPPY_ERROR_GENERAL 101 |
135 | ||
1da177e4 | 136 | /* |
948391d1 BP |
137 | * Pages of the SELECT SENSE / MODE SENSE packet commands. |
138 | * See SFF-8070i spec. | |
1da177e4 LT |
139 | */ |
140 | #define IDEFLOPPY_CAPABILITIES_PAGE 0x1b | |
141 | #define IDEFLOPPY_FLEXIBLE_DISK_PAGE 0x05 | |
142 | ||
cf8b8975 | 143 | static DEFINE_MUTEX(idefloppy_ref_mutex); |
1da177e4 LT |
144 | |
145 | #define to_ide_floppy(obj) container_of(obj, struct ide_floppy_obj, kref) | |
146 | ||
147 | #define ide_floppy_g(disk) \ | |
148 | container_of((disk)->private_data, struct ide_floppy_obj, driver) | |
149 | ||
08da591e BZ |
150 | static void idefloppy_cleanup_obj(struct kref *); |
151 | ||
1da177e4 LT |
152 | static struct ide_floppy_obj *ide_floppy_get(struct gendisk *disk) |
153 | { | |
154 | struct ide_floppy_obj *floppy = NULL; | |
155 | ||
cf8b8975 | 156 | mutex_lock(&idefloppy_ref_mutex); |
1da177e4 | 157 | floppy = ide_floppy_g(disk); |
08da591e | 158 | if (floppy) { |
d3e33ff5 | 159 | if (ide_device_get(floppy->drive)) |
08da591e | 160 | floppy = NULL; |
d3e33ff5 BZ |
161 | else |
162 | kref_get(&floppy->kref); | |
08da591e | 163 | } |
cf8b8975 | 164 | mutex_unlock(&idefloppy_ref_mutex); |
1da177e4 LT |
165 | return floppy; |
166 | } | |
167 | ||
1da177e4 LT |
168 | static void ide_floppy_put(struct ide_floppy_obj *floppy) |
169 | { | |
d3e33ff5 BZ |
170 | ide_drive_t *drive = floppy->drive; |
171 | ||
cf8b8975 | 172 | mutex_lock(&idefloppy_ref_mutex); |
9a24b63d | 173 | kref_put(&floppy->kref, idefloppy_cleanup_obj); |
d3e33ff5 | 174 | ide_device_put(drive); |
cf8b8975 | 175 | mutex_unlock(&idefloppy_ref_mutex); |
1da177e4 LT |
176 | } |
177 | ||
1da177e4 | 178 | /* |
0571c7a4 BP |
179 | * Used to finish servicing a request. For read/write requests, we will call |
180 | * ide_end_request to pass to the next buffer. | |
1da177e4 | 181 | */ |
c2b2b293 | 182 | static int idefloppy_end_request(ide_drive_t *drive, int uptodate, int nsecs) |
1da177e4 LT |
183 | { |
184 | idefloppy_floppy_t *floppy = drive->driver_data; | |
185 | struct request *rq = HWGROUP(drive)->rq; | |
186 | int error; | |
187 | ||
bcc77d9c | 188 | debug_log("Reached %s\n", __func__); |
1da177e4 LT |
189 | |
190 | switch (uptodate) { | |
0571c7a4 BP |
191 | case 0: error = IDEFLOPPY_ERROR_GENERAL; break; |
192 | case 1: error = 0; break; | |
193 | default: error = uptodate; | |
1da177e4 LT |
194 | } |
195 | if (error) | |
196 | floppy->failed_pc = NULL; | |
197 | /* Why does this happen? */ | |
198 | if (!rq) | |
199 | return 0; | |
4aff5e23 | 200 | if (!blk_special_request(rq)) { |
1da177e4 LT |
201 | /* our real local end request function */ |
202 | ide_end_request(drive, uptodate, nsecs); | |
203 | return 0; | |
204 | } | |
205 | rq->errors = error; | |
206 | /* fixme: need to move this local also */ | |
207 | ide_end_drive_cmd(drive, 0, 0); | |
208 | return 0; | |
209 | } | |
210 | ||
8e555123 BP |
211 | static void idefloppy_update_buffers(ide_drive_t *drive, |
212 | struct ide_atapi_pc *pc) | |
1da177e4 LT |
213 | { |
214 | struct request *rq = pc->rq; | |
215 | struct bio *bio = rq->bio; | |
216 | ||
217 | while ((bio = rq->bio) != NULL) | |
c2b2b293 | 218 | idefloppy_end_request(drive, 1, 0); |
1da177e4 LT |
219 | } |
220 | ||
221 | /* | |
0571c7a4 BP |
222 | * Generate a new packet command request in front of the request queue, before |
223 | * the current request so that it will be processed immediately, on the next | |
224 | * pass through the driver. | |
1da177e4 | 225 | */ |
8e555123 | 226 | static void idefloppy_queue_pc_head(ide_drive_t *drive, struct ide_atapi_pc *pc, |
0571c7a4 | 227 | struct request *rq) |
1da177e4 LT |
228 | { |
229 | struct ide_floppy_obj *floppy = drive->driver_data; | |
230 | ||
124cafc5 | 231 | blk_rq_init(NULL, rq); |
1da177e4 | 232 | rq->buffer = (char *) pc; |
4aff5e23 | 233 | rq->cmd_type = REQ_TYPE_SPECIAL; |
e8a96aa7 | 234 | rq->cmd_flags |= REQ_PREEMPT; |
1da177e4 | 235 | rq->rq_disk = floppy->disk; |
20cd93be | 236 | memcpy(rq->cmd, pc->c, 12); |
63f5abb0 | 237 | ide_do_drive_cmd(drive, rq); |
1da177e4 LT |
238 | } |
239 | ||
81f49382 | 240 | static void ide_floppy_callback(ide_drive_t *drive) |
1da177e4 LT |
241 | { |
242 | idefloppy_floppy_t *floppy = drive->driver_data; | |
81f49382 BP |
243 | struct ide_atapi_pc *pc = floppy->pc; |
244 | int uptodate = pc->error ? 0 : 1; | |
1da177e4 | 245 | |
bcc77d9c BP |
246 | debug_log("Reached %s\n", __func__); |
247 | ||
dd2e9a03 BZ |
248 | if (floppy->failed_pc == pc) |
249 | floppy->failed_pc = NULL; | |
250 | ||
81f49382 BP |
251 | if (pc->c[0] == GPCMD_READ_10 || pc->c[0] == GPCMD_WRITE_10 || |
252 | (pc->rq && blk_pc_request(pc->rq))) | |
253 | uptodate = 1; /* FIXME */ | |
254 | else if (pc->c[0] == GPCMD_REQUEST_SENSE) { | |
255 | u8 *buf = floppy->pc->buf; | |
a6ff2d3b | 256 | |
81f49382 BP |
257 | if (!pc->error) { |
258 | floppy->sense_key = buf[2] & 0x0F; | |
259 | floppy->asc = buf[12]; | |
260 | floppy->ascq = buf[13]; | |
261 | floppy->progress_indication = buf[15] & 0x80 ? | |
262 | (u16)get_unaligned((u16 *)&buf[16]) : 0x10000; | |
a6ff2d3b | 263 | |
81f49382 BP |
264 | if (floppy->failed_pc) |
265 | debug_log("pc = %x, ", floppy->failed_pc->c[0]); | |
bcc77d9c | 266 | |
81f49382 BP |
267 | debug_log("sense key = %x, asc = %x, ascq = %x\n", |
268 | floppy->sense_key, floppy->asc, floppy->ascq); | |
269 | } else | |
270 | printk(KERN_ERR "Error in REQUEST SENSE itself - " | |
271 | "Aborting request!\n"); | |
272 | } | |
1da177e4 | 273 | |
81f49382 | 274 | idefloppy_end_request(drive, uptodate, 0); |
1da177e4 LT |
275 | } |
276 | ||
8e555123 | 277 | static void idefloppy_init_pc(struct ide_atapi_pc *pc) |
1da177e4 | 278 | { |
68dc3575 | 279 | memset(pc, 0, sizeof(*pc)); |
8e555123 BP |
280 | pc->buf = pc->pc_buf; |
281 | pc->buf_size = IDEFLOPPY_PC_BUFFER_SIZE; | |
1da177e4 LT |
282 | } |
283 | ||
8e555123 | 284 | static void idefloppy_create_request_sense_cmd(struct ide_atapi_pc *pc) |
1da177e4 | 285 | { |
30d67099 BP |
286 | idefloppy_init_pc(pc); |
287 | pc->c[0] = GPCMD_REQUEST_SENSE; | |
1da177e4 | 288 | pc->c[4] = 255; |
8e555123 | 289 | pc->req_xfer = 18; |
1da177e4 LT |
290 | } |
291 | ||
292 | /* | |
0571c7a4 BP |
293 | * Called when an error was detected during the last packet command. We queue a |
294 | * request sense packet command in the head of the request list. | |
1da177e4 | 295 | */ |
0571c7a4 | 296 | static void idefloppy_retry_pc(ide_drive_t *drive) |
1da177e4 | 297 | { |
394a4c21 BZ |
298 | struct ide_floppy_obj *floppy = drive->driver_data; |
299 | struct request *rq = &floppy->request_sense_rq; | |
2e8a6f89 | 300 | struct ide_atapi_pc *pc = &floppy->request_sense_pc; |
1da177e4 | 301 | |
64a57fe4 | 302 | (void)ide_read_error(drive); |
1da177e4 LT |
303 | idefloppy_create_request_sense_cmd(pc); |
304 | idefloppy_queue_pc_head(drive, pc, rq); | |
305 | } | |
306 | ||
0eea6458 | 307 | /* The usual interrupt handler called during a packet command. */ |
52d3ccf7 | 308 | static ide_startstop_t idefloppy_pc_intr(ide_drive_t *drive) |
1da177e4 LT |
309 | { |
310 | idefloppy_floppy_t *floppy = drive->driver_data; | |
1da177e4 | 311 | |
646c0cb6 BZ |
312 | return ide_pc_intr(drive, floppy->pc, idefloppy_pc_intr, |
313 | IDEFLOPPY_WAIT_CMD, NULL, idefloppy_update_buffers, | |
acaa0f5f | 314 | idefloppy_retry_pc, NULL, ide_io_buffers); |
1da177e4 LT |
315 | } |
316 | ||
1da177e4 | 317 | /* |
0571c7a4 BP |
318 | * What we have here is a classic case of a top half / bottom half interrupt |
319 | * service routine. In interrupt mode, the device sends an interrupt to signal | |
320 | * that it is ready to receive a packet. However, we need to delay about 2-3 | |
321 | * ticks before issuing the packet or we gets in trouble. | |
1da177e4 | 322 | */ |
cbbc4e81 | 323 | static int idefloppy_transfer_pc(ide_drive_t *drive) |
1da177e4 LT |
324 | { |
325 | idefloppy_floppy_t *floppy = drive->driver_data; | |
326 | ||
327 | /* Send the actual packet */ | |
374e042c | 328 | drive->hwif->tp_ops->output_data(drive, NULL, floppy->pc->c, 12); |
9567b349 | 329 | |
1da177e4 LT |
330 | /* Timeout for the packet command */ |
331 | return IDEFLOPPY_WAIT_CMD; | |
332 | } | |
333 | ||
cbbc4e81 BP |
334 | |
335 | /* | |
336 | * Called as an interrupt (or directly). When the device says it's ready for a | |
337 | * packet, we schedule the packet transfer to occur about 2-3 ticks later in | |
338 | * transfer_pc. | |
339 | */ | |
340 | static ide_startstop_t idefloppy_start_pc_transfer(ide_drive_t *drive) | |
1da177e4 LT |
341 | { |
342 | idefloppy_floppy_t *floppy = drive->driver_data; | |
6ffb6641 | 343 | struct ide_atapi_pc *pc = floppy->pc; |
0b2eea4c BZ |
344 | ide_expiry_t *expiry; |
345 | unsigned int timeout; | |
1da177e4 | 346 | |
0571c7a4 | 347 | /* |
1da177e4 LT |
348 | * The following delay solves a problem with ATAPI Zip 100 drives |
349 | * where the Busy flag was apparently being deasserted before the | |
350 | * unit was ready to receive data. This was happening on a | |
351 | * 1200 MHz Athlon system. 10/26/01 25msec is too short, | |
352 | * 40 and 50msec work well. idefloppy_pc_intr will not be actually | |
353 | * used until after the packet is moved in about 50 msec. | |
354 | */ | |
ea68d270 | 355 | if (drive->atapi_flags & IDE_AFLAG_ZIP_DRIVE) { |
0b2eea4c | 356 | timeout = floppy->ticks; |
cbbc4e81 | 357 | expiry = &idefloppy_transfer_pc; |
0b2eea4c BZ |
358 | } else { |
359 | timeout = IDEFLOPPY_WAIT_CMD; | |
360 | expiry = NULL; | |
361 | } | |
362 | ||
594c16d8 | 363 | return ide_transfer_pc(drive, pc, idefloppy_pc_intr, timeout, expiry); |
1da177e4 LT |
364 | } |
365 | ||
d652c138 | 366 | static void ide_floppy_report_error(idefloppy_floppy_t *floppy, |
8e555123 | 367 | struct ide_atapi_pc *pc) |
1da177e4 | 368 | { |
d652c138 | 369 | /* supress error messages resulting from Medium not present */ |
1da177e4 LT |
370 | if (floppy->sense_key == 0x02 && |
371 | floppy->asc == 0x3a && | |
372 | floppy->ascq == 0x00) | |
d652c138 BP |
373 | return; |
374 | ||
375 | printk(KERN_ERR "ide-floppy: %s: I/O error, pc = %2x, key = %2x, " | |
376 | "asc = %2x, ascq = %2x\n", | |
377 | floppy->drive->name, pc->c[0], floppy->sense_key, | |
378 | floppy->asc, floppy->ascq); | |
379 | ||
1da177e4 LT |
380 | } |
381 | ||
0571c7a4 | 382 | static ide_startstop_t idefloppy_issue_pc(ide_drive_t *drive, |
8e555123 | 383 | struct ide_atapi_pc *pc) |
1da177e4 LT |
384 | { |
385 | idefloppy_floppy_t *floppy = drive->driver_data; | |
1da177e4 | 386 | |
1da177e4 | 387 | if (floppy->failed_pc == NULL && |
30d67099 | 388 | pc->c[0] != GPCMD_REQUEST_SENSE) |
1da177e4 LT |
389 | floppy->failed_pc = pc; |
390 | /* Set the current packet command */ | |
391 | floppy->pc = pc; | |
392 | ||
757ced89 | 393 | if (pc->retries > IDEFLOPPY_MAX_PC_RETRIES) { |
6e5fa7b8 | 394 | if (!(pc->flags & PC_FLAG_SUPPRESS_ERROR)) |
757ced89 BP |
395 | ide_floppy_report_error(floppy, pc); |
396 | /* Giving up */ | |
397 | pc->error = IDEFLOPPY_ERROR_GENERAL; | |
398 | ||
1da177e4 | 399 | floppy->failed_pc = NULL; |
2207fa5a | 400 | drive->pc_callback(drive); |
1da177e4 LT |
401 | return ide_stopped; |
402 | } | |
403 | ||
bcc77d9c | 404 | debug_log("Retry number - %d\n", pc->retries); |
1da177e4 LT |
405 | |
406 | pc->retries++; | |
1da177e4 | 407 | |
cbbc4e81 | 408 | return ide_issue_pc(drive, pc, idefloppy_start_pc_transfer, |
6bf1641c | 409 | IDEFLOPPY_WAIT_CMD, NULL); |
1da177e4 LT |
410 | } |
411 | ||
8e555123 | 412 | static void idefloppy_create_prevent_cmd(struct ide_atapi_pc *pc, int prevent) |
1da177e4 | 413 | { |
bcc77d9c | 414 | debug_log("creating prevent removal command, prevent = %d\n", prevent); |
1da177e4 LT |
415 | |
416 | idefloppy_init_pc(pc); | |
30d67099 | 417 | pc->c[0] = GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL; |
1da177e4 LT |
418 | pc->c[4] = prevent; |
419 | } | |
420 | ||
8e555123 | 421 | static void idefloppy_create_read_capacity_cmd(struct ide_atapi_pc *pc) |
1da177e4 LT |
422 | { |
423 | idefloppy_init_pc(pc); | |
30d67099 | 424 | pc->c[0] = GPCMD_READ_FORMAT_CAPACITIES; |
1da177e4 LT |
425 | pc->c[7] = 255; |
426 | pc->c[8] = 255; | |
8e555123 | 427 | pc->req_xfer = 255; |
1da177e4 LT |
428 | } |
429 | ||
8e555123 BP |
430 | static void idefloppy_create_format_unit_cmd(struct ide_atapi_pc *pc, int b, |
431 | int l, int flags) | |
1da177e4 LT |
432 | { |
433 | idefloppy_init_pc(pc); | |
30d67099 | 434 | pc->c[0] = GPCMD_FORMAT_UNIT; |
1da177e4 LT |
435 | pc->c[1] = 0x17; |
436 | ||
8e555123 BP |
437 | memset(pc->buf, 0, 12); |
438 | pc->buf[1] = 0xA2; | |
1da177e4 LT |
439 | /* Default format list header, u8 1: FOV/DCRT/IMM bits set */ |
440 | ||
441 | if (flags & 1) /* Verify bit on... */ | |
8e555123 BP |
442 | pc->buf[1] ^= 0x20; /* ... turn off DCRT bit */ |
443 | pc->buf[3] = 8; | |
1da177e4 | 444 | |
8e555123 BP |
445 | put_unaligned(cpu_to_be32(b), (unsigned int *)(&pc->buf[4])); |
446 | put_unaligned(cpu_to_be32(l), (unsigned int *)(&pc->buf[8])); | |
447 | pc->buf_size = 12; | |
6e5fa7b8 | 448 | pc->flags |= PC_FLAG_WRITING; |
1da177e4 LT |
449 | } |
450 | ||
0571c7a4 | 451 | /* A mode sense command is used to "sense" floppy parameters. */ |
8e555123 | 452 | static void idefloppy_create_mode_sense_cmd(struct ide_atapi_pc *pc, |
4de4b9e1 | 453 | u8 page_code) |
1da177e4 | 454 | { |
24a5d703 | 455 | u16 length = 8; /* sizeof(Mode Parameter Header) = 8 Bytes */ |
0571c7a4 | 456 | |
1da177e4 | 457 | idefloppy_init_pc(pc); |
30d67099 | 458 | pc->c[0] = GPCMD_MODE_SENSE_10; |
1da177e4 | 459 | pc->c[1] = 0; |
4de4b9e1 | 460 | pc->c[2] = page_code; |
1da177e4 LT |
461 | |
462 | switch (page_code) { | |
0571c7a4 BP |
463 | case IDEFLOPPY_CAPABILITIES_PAGE: |
464 | length += 12; | |
465 | break; | |
466 | case IDEFLOPPY_FLEXIBLE_DISK_PAGE: | |
467 | length += 32; | |
468 | break; | |
469 | default: | |
470 | printk(KERN_ERR "ide-floppy: unsupported page code " | |
1da177e4 LT |
471 | "in create_mode_sense_cmd\n"); |
472 | } | |
8f622430 | 473 | put_unaligned(cpu_to_be16(length), (u16 *) &pc->c[7]); |
8e555123 | 474 | pc->req_xfer = length; |
1da177e4 LT |
475 | } |
476 | ||
8e555123 | 477 | static void idefloppy_create_start_stop_cmd(struct ide_atapi_pc *pc, int start) |
1da177e4 LT |
478 | { |
479 | idefloppy_init_pc(pc); | |
30d67099 | 480 | pc->c[0] = GPCMD_START_STOP_UNIT; |
1da177e4 LT |
481 | pc->c[4] = start; |
482 | } | |
483 | ||
ae7e8ddc | 484 | static void idefloppy_create_rw_cmd(idefloppy_floppy_t *floppy, |
8e555123 | 485 | struct ide_atapi_pc *pc, struct request *rq, |
ae7e8ddc | 486 | unsigned long sector) |
1da177e4 LT |
487 | { |
488 | int block = sector / floppy->bs_factor; | |
489 | int blocks = rq->nr_sectors / floppy->bs_factor; | |
490 | int cmd = rq_data_dir(rq); | |
491 | ||
ae7e8ddc | 492 | debug_log("create_rw10_cmd: block == %d, blocks == %d\n", |
1da177e4 LT |
493 | block, blocks); |
494 | ||
495 | idefloppy_init_pc(pc); | |
ae7e8ddc BP |
496 | pc->c[0] = cmd == READ ? GPCMD_READ_10 : GPCMD_WRITE_10; |
497 | put_unaligned(cpu_to_be16(blocks), (unsigned short *)&pc->c[7]); | |
8f622430 | 498 | put_unaligned(cpu_to_be32(block), (unsigned int *) &pc->c[2]); |
ae7e8ddc | 499 | |
20cd93be BP |
500 | memcpy(rq->cmd, pc->c, 12); |
501 | ||
1da177e4 | 502 | pc->rq = rq; |
b98b3409 | 503 | pc->b_count = 0; |
4aff5e23 | 504 | if (rq->cmd_flags & REQ_RW) |
6e5fa7b8 | 505 | pc->flags |= PC_FLAG_WRITING; |
8e555123 BP |
506 | pc->buf = NULL; |
507 | pc->req_xfer = pc->buf_size = blocks * floppy->block_size; | |
5e331095 | 508 | pc->flags |= PC_FLAG_DMA_OK; |
1da177e4 LT |
509 | } |
510 | ||
0571c7a4 | 511 | static void idefloppy_blockpc_cmd(idefloppy_floppy_t *floppy, |
8e555123 | 512 | struct ide_atapi_pc *pc, struct request *rq) |
1da177e4 | 513 | { |
1da177e4 LT |
514 | idefloppy_init_pc(pc); |
515 | memcpy(pc->c, rq->cmd, sizeof(pc->c)); | |
3d6392cf | 516 | pc->rq = rq; |
b98b3409 | 517 | pc->b_count = 0; |
3d6392cf | 518 | if (rq->data_len && rq_data_dir(rq) == WRITE) |
6e5fa7b8 | 519 | pc->flags |= PC_FLAG_WRITING; |
8e555123 | 520 | pc->buf = rq->data; |
3d6392cf | 521 | if (rq->bio) |
5e331095 | 522 | pc->flags |= PC_FLAG_DMA_OK; |
3d6392cf JA |
523 | /* |
524 | * possibly problematic, doesn't look like ide-floppy correctly | |
525 | * handled scattered requests if dma fails... | |
526 | */ | |
8e555123 | 527 | pc->req_xfer = pc->buf_size = rq->data_len; |
1da177e4 LT |
528 | } |
529 | ||
0571c7a4 BP |
530 | static ide_startstop_t idefloppy_do_request(ide_drive_t *drive, |
531 | struct request *rq, sector_t block_s) | |
1da177e4 LT |
532 | { |
533 | idefloppy_floppy_t *floppy = drive->driver_data; | |
b98b3409 | 534 | ide_hwif_t *hwif = drive->hwif; |
8e555123 | 535 | struct ide_atapi_pc *pc; |
1da177e4 LT |
536 | unsigned long block = (unsigned long)block_s; |
537 | ||
b98b3409 BP |
538 | debug_log("%s: dev: %s, cmd: 0x%x, cmd_type: %x, errors: %d\n", |
539 | __func__, rq->rq_disk ? rq->rq_disk->disk_name : "?", | |
540 | rq->cmd[0], rq->cmd_type, rq->errors); | |
541 | ||
542 | debug_log("%s: sector: %ld, nr_sectors: %ld, current_nr_sectors: %d\n", | |
543 | __func__, (long)rq->sector, rq->nr_sectors, | |
544 | rq->current_nr_sectors); | |
1da177e4 LT |
545 | |
546 | if (rq->errors >= ERROR_MAX) { | |
d652c138 BP |
547 | if (floppy->failed_pc) |
548 | ide_floppy_report_error(floppy, floppy->failed_pc); | |
1da177e4 LT |
549 | else |
550 | printk(KERN_ERR "ide-floppy: %s: I/O error\n", | |
551 | drive->name); | |
c2b2b293 | 552 | idefloppy_end_request(drive, 0, 0); |
1da177e4 LT |
553 | return ide_stopped; |
554 | } | |
4aff5e23 | 555 | if (blk_fs_request(rq)) { |
1da177e4 LT |
556 | if (((long)rq->sector % floppy->bs_factor) || |
557 | (rq->nr_sectors % floppy->bs_factor)) { | |
0571c7a4 BP |
558 | printk(KERN_ERR "%s: unsupported r/w request size\n", |
559 | drive->name); | |
c2b2b293 | 560 | idefloppy_end_request(drive, 0, 0); |
1da177e4 LT |
561 | return ide_stopped; |
562 | } | |
2e8a6f89 | 563 | pc = &floppy->queued_pc; |
1da177e4 | 564 | idefloppy_create_rw_cmd(floppy, pc, rq, block); |
4aff5e23 | 565 | } else if (blk_special_request(rq)) { |
8e555123 | 566 | pc = (struct ide_atapi_pc *) rq->buffer; |
4aff5e23 | 567 | } else if (blk_pc_request(rq)) { |
2e8a6f89 | 568 | pc = &floppy->queued_pc; |
3d6392cf | 569 | idefloppy_blockpc_cmd(floppy, pc, rq); |
1da177e4 LT |
570 | } else { |
571 | blk_dump_rq_flags(rq, | |
572 | "ide-floppy: unsupported command in queue"); | |
c2b2b293 | 573 | idefloppy_end_request(drive, 0, 0); |
1da177e4 LT |
574 | return ide_stopped; |
575 | } | |
576 | ||
b98b3409 BP |
577 | ide_init_sg_cmd(drive, rq); |
578 | ide_map_sg(drive, rq); | |
579 | ||
580 | pc->sg = hwif->sg_table; | |
581 | pc->sg_cnt = hwif->sg_nents; | |
582 | ||
1da177e4 | 583 | pc->rq = rq; |
5d41893c | 584 | |
1da177e4 LT |
585 | return idefloppy_issue_pc(drive, pc); |
586 | } | |
587 | ||
588 | /* | |
0571c7a4 BP |
589 | * Add a special packet command request to the tail of the request queue, |
590 | * and wait for it to be serviced. | |
1da177e4 | 591 | */ |
8e555123 | 592 | static int idefloppy_queue_pc_tail(ide_drive_t *drive, struct ide_atapi_pc *pc) |
1da177e4 LT |
593 | { |
594 | struct ide_floppy_obj *floppy = drive->driver_data; | |
6fe16238 FT |
595 | struct request *rq; |
596 | int error; | |
1da177e4 | 597 | |
6fe16238 FT |
598 | rq = blk_get_request(drive->queue, READ, __GFP_WAIT); |
599 | rq->buffer = (char *) pc; | |
600 | rq->cmd_type = REQ_TYPE_SPECIAL; | |
20cd93be | 601 | memcpy(rq->cmd, pc->c, 12); |
6fe16238 FT |
602 | error = blk_execute_rq(drive->queue, floppy->disk, rq, 0); |
603 | blk_put_request(rq); | |
1da177e4 | 604 | |
6fe16238 | 605 | return error; |
1da177e4 LT |
606 | } |
607 | ||
608 | /* | |
8e81bbba BP |
609 | * Look at the flexible disk page parameters. We ignore the CHS capacity |
610 | * parameters and use the LBA parameters instead. | |
1da177e4 | 611 | */ |
8e81bbba | 612 | static int ide_floppy_get_flexible_disk_page(ide_drive_t *drive) |
1da177e4 LT |
613 | { |
614 | idefloppy_floppy_t *floppy = drive->driver_data; | |
8e555123 | 615 | struct ide_atapi_pc pc; |
8e81bbba | 616 | u8 *page; |
1da177e4 | 617 | int capacity, lba_capacity; |
8e81bbba BP |
618 | u16 transfer_rate, sector_size, cyls, rpm; |
619 | u8 heads, sectors; | |
1da177e4 | 620 | |
4de4b9e1 | 621 | idefloppy_create_mode_sense_cmd(&pc, IDEFLOPPY_FLEXIBLE_DISK_PAGE); |
8e81bbba BP |
622 | |
623 | if (idefloppy_queue_pc_tail(drive, &pc)) { | |
624 | printk(KERN_ERR "ide-floppy: Can't get flexible disk page" | |
625 | " parameters\n"); | |
1da177e4 LT |
626 | return 1; |
627 | } | |
8e555123 | 628 | floppy->wp = !!(pc.buf[3] & 0x80); |
1da177e4 | 629 | set_disk_ro(floppy->disk, floppy->wp); |
8e555123 | 630 | page = &pc.buf[8]; |
8e81bbba | 631 | |
85ae98a3 HH |
632 | transfer_rate = be16_to_cpup((__be16 *)&pc.buf[8 + 2]); |
633 | sector_size = be16_to_cpup((__be16 *)&pc.buf[8 + 6]); | |
634 | cyls = be16_to_cpup((__be16 *)&pc.buf[8 + 8]); | |
635 | rpm = be16_to_cpup((__be16 *)&pc.buf[8 + 28]); | |
8e555123 BP |
636 | heads = pc.buf[8 + 4]; |
637 | sectors = pc.buf[8 + 5]; | |
8e81bbba BP |
638 | |
639 | capacity = cyls * heads * sectors * sector_size; | |
640 | ||
641 | if (memcmp(page, &floppy->flexible_disk_page, 32)) | |
1da177e4 LT |
642 | printk(KERN_INFO "%s: %dkB, %d/%d/%d CHS, %d kBps, " |
643 | "%d sector size, %d rpm\n", | |
8e81bbba BP |
644 | drive->name, capacity / 1024, cyls, heads, |
645 | sectors, transfer_rate / 8, sector_size, rpm); | |
646 | ||
647 | memcpy(&floppy->flexible_disk_page, page, 32); | |
648 | drive->bios_cyl = cyls; | |
649 | drive->bios_head = heads; | |
650 | drive->bios_sect = sectors; | |
1da177e4 | 651 | lba_capacity = floppy->blocks * floppy->block_size; |
8e81bbba | 652 | |
1da177e4 LT |
653 | if (capacity < lba_capacity) { |
654 | printk(KERN_NOTICE "%s: The disk reports a capacity of %d " | |
655 | "bytes, but the drive only handles %d\n", | |
656 | drive->name, lba_capacity, capacity); | |
8e81bbba BP |
657 | floppy->blocks = floppy->block_size ? |
658 | capacity / floppy->block_size : 0; | |
1da177e4 LT |
659 | } |
660 | return 0; | |
661 | } | |
662 | ||
948391d1 | 663 | static int idefloppy_get_sfrp_bit(ide_drive_t *drive) |
1da177e4 LT |
664 | { |
665 | idefloppy_floppy_t *floppy = drive->driver_data; | |
8e555123 | 666 | struct ide_atapi_pc pc; |
1da177e4 LT |
667 | |
668 | floppy->srfp = 0; | |
1da177e4 | 669 | |
4de4b9e1 | 670 | idefloppy_create_mode_sense_cmd(&pc, IDEFLOPPY_CAPABILITIES_PAGE); |
6e5fa7b8 | 671 | pc.flags |= PC_FLAG_SUPPRESS_ERROR; |
4de4b9e1 | 672 | |
948391d1 | 673 | if (idefloppy_queue_pc_tail(drive, &pc)) |
1da177e4 | 674 | return 1; |
1da177e4 | 675 | |
8e555123 | 676 | floppy->srfp = pc.buf[8 + 2] & 0x40; |
e3faa248 | 677 | return 0; |
1da177e4 LT |
678 | } |
679 | ||
680 | /* | |
194ec0c0 BP |
681 | * Determine if a media is present in the floppy drive, and if so, its LBA |
682 | * capacity. | |
1da177e4 | 683 | */ |
194ec0c0 | 684 | static int ide_floppy_get_capacity(ide_drive_t *drive) |
1da177e4 LT |
685 | { |
686 | idefloppy_floppy_t *floppy = drive->driver_data; | |
8e555123 | 687 | struct ide_atapi_pc pc; |
194ec0c0 BP |
688 | u8 *cap_desc; |
689 | u8 header_len, desc_cnt; | |
690 | int i, rc = 1, blocks, length; | |
691 | ||
1da177e4 LT |
692 | drive->bios_cyl = 0; |
693 | drive->bios_head = drive->bios_sect = 0; | |
fdb77da4 AC |
694 | floppy->blocks = 0; |
695 | floppy->bs_factor = 1; | |
1da177e4 LT |
696 | set_capacity(floppy->disk, 0); |
697 | ||
698 | idefloppy_create_read_capacity_cmd(&pc); | |
699 | if (idefloppy_queue_pc_tail(drive, &pc)) { | |
700 | printk(KERN_ERR "ide-floppy: Can't get floppy parameters\n"); | |
701 | return 1; | |
702 | } | |
8e555123 BP |
703 | header_len = pc.buf[3]; |
704 | cap_desc = &pc.buf[4]; | |
194ec0c0 BP |
705 | desc_cnt = header_len / 8; /* capacity descriptor of 8 bytes */ |
706 | ||
707 | for (i = 0; i < desc_cnt; i++) { | |
708 | unsigned int desc_start = 4 + i*8; | |
709 | ||
85ae98a3 HH |
710 | blocks = be32_to_cpup((__be32 *)&pc.buf[desc_start]); |
711 | length = be16_to_cpup((__be16 *)&pc.buf[desc_start + 6]); | |
194ec0c0 BP |
712 | |
713 | debug_log("Descriptor %d: %dkB, %d blocks, %d sector size\n", | |
714 | i, blocks * length / 1024, blocks, length); | |
1da177e4 | 715 | |
194ec0c0 BP |
716 | if (i) |
717 | continue; | |
718 | /* | |
719 | * the code below is valid only for the 1st descriptor, ie i=0 | |
720 | */ | |
1da177e4 | 721 | |
8e555123 | 722 | switch (pc.buf[desc_start + 4] & 0x03) { |
1da177e4 LT |
723 | /* Clik! drive returns this instead of CAPACITY_CURRENT */ |
724 | case CAPACITY_UNFORMATTED: | |
ea68d270 | 725 | if (!(drive->atapi_flags & IDE_AFLAG_CLIK_DRIVE)) |
0571c7a4 | 726 | /* |
1da177e4 LT |
727 | * If it is not a clik drive, break out |
728 | * (maintains previous driver behaviour) | |
729 | */ | |
730 | break; | |
731 | case CAPACITY_CURRENT: | |
732 | /* Normal Zip/LS-120 disks */ | |
194ec0c0 | 733 | if (memcmp(cap_desc, &floppy->cap_desc, 8)) |
1da177e4 LT |
734 | printk(KERN_INFO "%s: %dkB, %d blocks, %d " |
735 | "sector size\n", drive->name, | |
736 | blocks * length / 1024, blocks, length); | |
194ec0c0 BP |
737 | memcpy(&floppy->cap_desc, cap_desc, 8); |
738 | ||
1da177e4 LT |
739 | if (!length || length % 512) { |
740 | printk(KERN_NOTICE "%s: %d bytes block size " | |
741 | "not supported\n", drive->name, length); | |
742 | } else { | |
194ec0c0 BP |
743 | floppy->blocks = blocks; |
744 | floppy->block_size = length; | |
745 | floppy->bs_factor = length / 512; | |
746 | if (floppy->bs_factor != 1) | |
747 | printk(KERN_NOTICE "%s: warning: non " | |
1da177e4 LT |
748 | "512 bytes block size not " |
749 | "fully supported\n", | |
750 | drive->name); | |
194ec0c0 | 751 | rc = 0; |
1da177e4 LT |
752 | } |
753 | break; | |
754 | case CAPACITY_NO_CARTRIDGE: | |
755 | /* | |
756 | * This is a KERN_ERR so it appears on screen | |
757 | * for the user to see | |
758 | */ | |
759 | printk(KERN_ERR "%s: No disk in drive\n", drive->name); | |
760 | break; | |
761 | case CAPACITY_INVALID: | |
762 | printk(KERN_ERR "%s: Invalid capacity for disk " | |
763 | "in drive\n", drive->name); | |
764 | break; | |
765 | } | |
194ec0c0 | 766 | debug_log("Descriptor 0 Code: %d\n", |
8e555123 | 767 | pc.buf[desc_start + 4] & 0x03); |
1da177e4 LT |
768 | } |
769 | ||
770 | /* Clik! disk does not support get_flexible_disk_page */ | |
ea68d270 | 771 | if (!(drive->atapi_flags & IDE_AFLAG_CLIK_DRIVE)) |
8e81bbba | 772 | (void) ide_floppy_get_flexible_disk_page(drive); |
1da177e4 LT |
773 | |
774 | set_capacity(floppy->disk, floppy->blocks * floppy->bs_factor); | |
775 | return rc; | |
776 | } | |
777 | ||
778 | /* | |
194ec0c0 BP |
779 | * Obtain the list of formattable capacities. |
780 | * Very similar to ide_floppy_get_capacity, except that we push the capacity | |
781 | * descriptors to userland, instead of our own structures. | |
782 | * | |
783 | * Userland gives us the following structure: | |
784 | * | |
785 | * struct idefloppy_format_capacities { | |
786 | * int nformats; | |
787 | * struct { | |
788 | * int nblocks; | |
789 | * int blocksize; | |
790 | * } formats[]; | |
791 | * }; | |
792 | * | |
793 | * userland initializes nformats to the number of allocated formats[] records. | |
794 | * On exit we set nformats to the number of records we've actually initialized. | |
795 | */ | |
1da177e4 | 796 | |
194ec0c0 | 797 | static int ide_floppy_get_format_capacities(ide_drive_t *drive, int __user *arg) |
1da177e4 | 798 | { |
8e555123 | 799 | struct ide_atapi_pc pc; |
194ec0c0 BP |
800 | u8 header_len, desc_cnt; |
801 | int i, blocks, length, u_array_size, u_index; | |
1da177e4 LT |
802 | int __user *argp; |
803 | ||
804 | if (get_user(u_array_size, arg)) | |
e3faa248 | 805 | return -EFAULT; |
1da177e4 LT |
806 | |
807 | if (u_array_size <= 0) | |
e3faa248 | 808 | return -EINVAL; |
1da177e4 LT |
809 | |
810 | idefloppy_create_read_capacity_cmd(&pc); | |
811 | if (idefloppy_queue_pc_tail(drive, &pc)) { | |
812 | printk(KERN_ERR "ide-floppy: Can't get floppy parameters\n"); | |
e3faa248 | 813 | return -EIO; |
194ec0c0 | 814 | } |
e3faa248 | 815 | |
8e555123 | 816 | header_len = pc.buf[3]; |
194ec0c0 | 817 | desc_cnt = header_len / 8; /* capacity descriptor of 8 bytes */ |
1da177e4 LT |
818 | |
819 | u_index = 0; | |
820 | argp = arg + 1; | |
821 | ||
822 | /* | |
194ec0c0 BP |
823 | * We always skip the first capacity descriptor. That's the current |
824 | * capacity. We are interested in the remaining descriptors, the | |
825 | * formattable capacities. | |
826 | */ | |
827 | for (i = 1; i < desc_cnt; i++) { | |
828 | unsigned int desc_start = 4 + i*8; | |
1da177e4 | 829 | |
1da177e4 LT |
830 | if (u_index >= u_array_size) |
831 | break; /* User-supplied buffer too small */ | |
1da177e4 | 832 | |
85ae98a3 HH |
833 | blocks = be32_to_cpup((__be32 *)&pc.buf[desc_start]); |
834 | length = be16_to_cpup((__be16 *)&pc.buf[desc_start + 6]); | |
1da177e4 LT |
835 | |
836 | if (put_user(blocks, argp)) | |
e3faa248 BZ |
837 | return -EFAULT; |
838 | ||
1da177e4 LT |
839 | ++argp; |
840 | ||
841 | if (put_user(length, argp)) | |
e3faa248 BZ |
842 | return -EFAULT; |
843 | ||
1da177e4 LT |
844 | ++argp; |
845 | ||
846 | ++u_index; | |
847 | } | |
848 | ||
849 | if (put_user(u_index, arg)) | |
e3faa248 BZ |
850 | return -EFAULT; |
851 | ||
852 | return 0; | |
1da177e4 LT |
853 | } |
854 | ||
1da177e4 | 855 | /* |
0571c7a4 BP |
856 | * Get ATAPI_FORMAT_UNIT progress indication. |
857 | * | |
858 | * Userland gives a pointer to an int. The int is set to a progress | |
859 | * indicator 0-65536, with 65536=100%. | |
860 | * | |
861 | * If the drive does not support format progress indication, we just check | |
862 | * the dsc bit, and return either 0 or 65536. | |
863 | */ | |
1da177e4 | 864 | |
d56c99e2 | 865 | static int ide_floppy_get_format_progress(ide_drive_t *drive, int __user *arg) |
1da177e4 LT |
866 | { |
867 | idefloppy_floppy_t *floppy = drive->driver_data; | |
8e555123 | 868 | struct ide_atapi_pc pc; |
1da177e4 LT |
869 | int progress_indication = 0x10000; |
870 | ||
871 | if (floppy->srfp) { | |
872 | idefloppy_create_request_sense_cmd(&pc); | |
0571c7a4 | 873 | if (idefloppy_queue_pc_tail(drive, &pc)) |
e3faa248 | 874 | return -EIO; |
1da177e4 LT |
875 | |
876 | if (floppy->sense_key == 2 && | |
877 | floppy->asc == 4 && | |
0571c7a4 | 878 | floppy->ascq == 4) |
1da177e4 | 879 | progress_indication = floppy->progress_indication; |
0571c7a4 BP |
880 | |
881 | /* Else assume format_unit has finished, and we're at 0x10000 */ | |
1da177e4 | 882 | } else { |
b73c7ee2 | 883 | ide_hwif_t *hwif = drive->hwif; |
1da177e4 | 884 | unsigned long flags; |
22c525b9 | 885 | u8 stat; |
1da177e4 LT |
886 | |
887 | local_irq_save(flags); | |
374e042c | 888 | stat = hwif->tp_ops->read_status(hwif); |
1da177e4 LT |
889 | local_irq_restore(flags); |
890 | ||
3a7d2484 | 891 | progress_indication = ((stat & ATA_DSC) == 0) ? 0 : 0x10000; |
1da177e4 | 892 | } |
e3faa248 | 893 | |
1da177e4 | 894 | if (put_user(progress_indication, arg)) |
e3faa248 | 895 | return -EFAULT; |
1da177e4 | 896 | |
e3faa248 | 897 | return 0; |
1da177e4 LT |
898 | } |
899 | ||
0571c7a4 | 900 | static sector_t idefloppy_capacity(ide_drive_t *drive) |
1da177e4 LT |
901 | { |
902 | idefloppy_floppy_t *floppy = drive->driver_data; | |
903 | unsigned long capacity = floppy->blocks * floppy->bs_factor; | |
904 | ||
905 | return capacity; | |
906 | } | |
907 | ||
7662d046 | 908 | #ifdef CONFIG_IDE_PROC_FS |
8185d5aa BZ |
909 | ide_devset_rw(bios_cyl, 0, 1023, bios_cyl); |
910 | ide_devset_rw(bios_head, 0, 255, bios_head); | |
911 | ide_devset_rw(bios_sect, 0, 63, bios_sect); | |
912 | ||
913 | static int get_ticks(ide_drive_t *drive) | |
1da177e4 LT |
914 | { |
915 | idefloppy_floppy_t *floppy = drive->driver_data; | |
8185d5aa BZ |
916 | return floppy->ticks; |
917 | } | |
1da177e4 | 918 | |
8185d5aa BZ |
919 | static int set_ticks(ide_drive_t *drive, int arg) |
920 | { | |
921 | idefloppy_floppy_t *floppy = drive->driver_data; | |
922 | floppy->ticks = arg; | |
923 | return 0; | |
1da177e4 | 924 | } |
8185d5aa BZ |
925 | |
926 | IDE_DEVSET(ticks, S_RW, 0, 255, get_ticks, set_ticks); | |
927 | ||
928 | static const struct ide_devset *idefloppy_settings[] = { | |
929 | &ide_devset_bios_cyl, | |
930 | &ide_devset_bios_head, | |
931 | &ide_devset_bios_sect, | |
932 | &ide_devset_ticks, | |
933 | NULL | |
934 | }; | |
7662d046 | 935 | #endif |
1da177e4 | 936 | |
0571c7a4 | 937 | static void idefloppy_setup(ide_drive_t *drive, idefloppy_floppy_t *floppy) |
1da177e4 | 938 | { |
4dde4492 | 939 | u16 *id = drive->id; |
3ad6776c | 940 | u8 gcw[2]; |
1da177e4 | 941 | |
4dde4492 | 942 | *((u16 *)&gcw) = id[ATA_ID_CONFIG]; |
2e8a6f89 | 943 | |
2207fa5a | 944 | drive->pc_callback = ide_floppy_callback; |
3ad6776c BP |
945 | |
946 | if (((gcw[0] & 0x60) >> 5) == 1) | |
ea68d270 | 947 | drive->atapi_flags |= IDE_AFLAG_DRQ_INTERRUPT; |
1da177e4 | 948 | /* |
0571c7a4 BP |
949 | * We used to check revisions here. At this point however I'm giving up. |
950 | * Just assume they are all broken, its easier. | |
1da177e4 | 951 | * |
0571c7a4 BP |
952 | * The actual reason for the workarounds was likely a driver bug after |
953 | * all rather than a firmware bug, and the workaround below used to hide | |
954 | * it. It should be fixed as of version 1.9, but to be on the safe side | |
955 | * we'll leave the limitation below for the 2.2.x tree. | |
1da177e4 | 956 | */ |
4dde4492 | 957 | if (!strncmp((char *)&id[ATA_ID_PROD], "IOMEGA ZIP 100 ATAPI", 20)) { |
ea68d270 | 958 | drive->atapi_flags |= IDE_AFLAG_ZIP_DRIVE; |
1da177e4 LT |
959 | /* This value will be visible in the /proc/ide/hdx/settings */ |
960 | floppy->ticks = IDEFLOPPY_TICKS_DELAY; | |
961 | blk_queue_max_sectors(drive->queue, 64); | |
962 | } | |
963 | ||
964 | /* | |
0571c7a4 BP |
965 | * Guess what? The IOMEGA Clik! drive also needs the above fix. It makes |
966 | * nasty clicking noises without it, so please don't remove this. | |
967 | */ | |
4dde4492 | 968 | if (strncmp((char *)&id[ATA_ID_PROD], "IOMEGA Clik!", 11) == 0) { |
1da177e4 | 969 | blk_queue_max_sectors(drive->queue, 64); |
ea68d270 | 970 | drive->atapi_flags |= IDE_AFLAG_CLIK_DRIVE; |
1da177e4 LT |
971 | } |
972 | ||
194ec0c0 | 973 | (void) ide_floppy_get_capacity(drive); |
1e874f44 BZ |
974 | |
975 | ide_proc_register_driver(drive, floppy->driver); | |
1da177e4 LT |
976 | } |
977 | ||
4031bbe4 | 978 | static void ide_floppy_remove(ide_drive_t *drive) |
1da177e4 LT |
979 | { |
980 | idefloppy_floppy_t *floppy = drive->driver_data; | |
981 | struct gendisk *g = floppy->disk; | |
982 | ||
7662d046 | 983 | ide_proc_unregister_driver(drive, floppy->driver); |
1da177e4 LT |
984 | |
985 | del_gendisk(g); | |
986 | ||
987 | ide_floppy_put(floppy); | |
1da177e4 LT |
988 | } |
989 | ||
9a24b63d | 990 | static void idefloppy_cleanup_obj(struct kref *kref) |
1da177e4 LT |
991 | { |
992 | struct ide_floppy_obj *floppy = to_ide_floppy(kref); | |
993 | ide_drive_t *drive = floppy->drive; | |
994 | struct gendisk *g = floppy->disk; | |
995 | ||
996 | drive->driver_data = NULL; | |
997 | g->private_data = NULL; | |
998 | put_disk(g); | |
999 | kfree(floppy); | |
1000 | } | |
1001 | ||
ecfd80e4 | 1002 | #ifdef CONFIG_IDE_PROC_FS |
0571c7a4 BP |
1003 | static int proc_idefloppy_read_capacity(char *page, char **start, off_t off, |
1004 | int count, int *eof, void *data) | |
1da177e4 LT |
1005 | { |
1006 | ide_drive_t*drive = (ide_drive_t *)data; | |
1007 | int len; | |
1008 | ||
0571c7a4 BP |
1009 | len = sprintf(page, "%llu\n", (long long)idefloppy_capacity(drive)); |
1010 | PROC_IDE_READ_RETURN(page, start, off, count, eof, len); | |
1da177e4 LT |
1011 | } |
1012 | ||
1013 | static ide_proc_entry_t idefloppy_proc[] = { | |
0571c7a4 BP |
1014 | { "capacity", S_IFREG|S_IRUGO, proc_idefloppy_read_capacity, NULL }, |
1015 | { "geometry", S_IFREG|S_IRUGO, proc_ide_read_geometry, NULL }, | |
1da177e4 LT |
1016 | { NULL, 0, NULL, NULL } |
1017 | }; | |
ecfd80e4 | 1018 | #endif /* CONFIG_IDE_PROC_FS */ |
1da177e4 | 1019 | |
4031bbe4 | 1020 | static int ide_floppy_probe(ide_drive_t *); |
1da177e4 | 1021 | |
1da177e4 | 1022 | static ide_driver_t idefloppy_driver = { |
8604affd | 1023 | .gen_driver = { |
4ef3b8f4 | 1024 | .owner = THIS_MODULE, |
8604affd BZ |
1025 | .name = "ide-floppy", |
1026 | .bus = &ide_bus_type, | |
8604affd | 1027 | }, |
4031bbe4 RK |
1028 | .probe = ide_floppy_probe, |
1029 | .remove = ide_floppy_remove, | |
1da177e4 LT |
1030 | .version = IDEFLOPPY_VERSION, |
1031 | .media = ide_floppy, | |
1da177e4 | 1032 | .do_request = idefloppy_do_request, |
c2b2b293 | 1033 | .end_request = idefloppy_end_request, |
1da177e4 | 1034 | .error = __ide_error, |
7662d046 | 1035 | #ifdef CONFIG_IDE_PROC_FS |
1da177e4 | 1036 | .proc = idefloppy_proc, |
8185d5aa | 1037 | .settings = idefloppy_settings, |
7662d046 | 1038 | #endif |
1da177e4 LT |
1039 | }; |
1040 | ||
e996fc8a BZ |
1041 | static void ide_floppy_set_media_lock(ide_drive_t *drive, int on) |
1042 | { | |
1043 | struct ide_atapi_pc pc; | |
1044 | ||
1045 | /* IOMEGA Clik! drives do not support lock/unlock commands */ | |
1046 | if ((drive->atapi_flags & IDE_AFLAG_CLIK_DRIVE) == 0) { | |
1047 | idefloppy_create_prevent_cmd(&pc, on); | |
1048 | (void)idefloppy_queue_pc_tail(drive, &pc); | |
1049 | } | |
1050 | } | |
1051 | ||
1da177e4 LT |
1052 | static int idefloppy_open(struct inode *inode, struct file *filp) |
1053 | { | |
1054 | struct gendisk *disk = inode->i_bdev->bd_disk; | |
1055 | struct ide_floppy_obj *floppy; | |
1056 | ide_drive_t *drive; | |
8e555123 | 1057 | struct ide_atapi_pc pc; |
1da177e4 LT |
1058 | int ret = 0; |
1059 | ||
bcc77d9c | 1060 | debug_log("Reached %s\n", __func__); |
1da177e4 | 1061 | |
0571c7a4 BP |
1062 | floppy = ide_floppy_get(disk); |
1063 | if (!floppy) | |
1da177e4 LT |
1064 | return -ENXIO; |
1065 | ||
1066 | drive = floppy->drive; | |
1067 | ||
c94964a4 | 1068 | floppy->openers++; |
1da177e4 | 1069 | |
c94964a4 | 1070 | if (floppy->openers == 1) { |
ea68d270 | 1071 | drive->atapi_flags &= ~IDE_AFLAG_FORMAT_IN_PROGRESS; |
1da177e4 LT |
1072 | /* Just in case */ |
1073 | ||
c96a7df8 BP |
1074 | idefloppy_init_pc(&pc); |
1075 | pc.c[0] = GPCMD_TEST_UNIT_READY; | |
1076 | ||
1da177e4 LT |
1077 | if (idefloppy_queue_pc_tail(drive, &pc)) { |
1078 | idefloppy_create_start_stop_cmd(&pc, 1); | |
1079 | (void) idefloppy_queue_pc_tail(drive, &pc); | |
1080 | } | |
1081 | ||
194ec0c0 | 1082 | if (ide_floppy_get_capacity(drive) |
1da177e4 LT |
1083 | && (filp->f_flags & O_NDELAY) == 0 |
1084 | /* | |
0571c7a4 BP |
1085 | * Allow O_NDELAY to open a drive without a disk, or with an |
1086 | * unreadable disk, so that we can get the format capacity | |
1087 | * of the drive or begin the format - Sam | |
1088 | */ | |
1da177e4 | 1089 | ) { |
1da177e4 LT |
1090 | ret = -EIO; |
1091 | goto out_put_floppy; | |
1092 | } | |
1093 | ||
1094 | if (floppy->wp && (filp->f_mode & 2)) { | |
1da177e4 LT |
1095 | ret = -EROFS; |
1096 | goto out_put_floppy; | |
1097 | } | |
e996fc8a | 1098 | |
ea68d270 | 1099 | drive->atapi_flags |= IDE_AFLAG_MEDIA_CHANGED; |
e996fc8a | 1100 | ide_floppy_set_media_lock(drive, 1); |
1da177e4 | 1101 | check_disk_change(inode->i_bdev); |
ea68d270 | 1102 | } else if (drive->atapi_flags & IDE_AFLAG_FORMAT_IN_PROGRESS) { |
1da177e4 LT |
1103 | ret = -EBUSY; |
1104 | goto out_put_floppy; | |
1105 | } | |
1106 | return 0; | |
1107 | ||
1108 | out_put_floppy: | |
c94964a4 | 1109 | floppy->openers--; |
1da177e4 LT |
1110 | ide_floppy_put(floppy); |
1111 | return ret; | |
1112 | } | |
1113 | ||
1114 | static int idefloppy_release(struct inode *inode, struct file *filp) | |
1115 | { | |
1116 | struct gendisk *disk = inode->i_bdev->bd_disk; | |
1117 | struct ide_floppy_obj *floppy = ide_floppy_g(disk); | |
1118 | ide_drive_t *drive = floppy->drive; | |
bcc77d9c BP |
1119 | |
1120 | debug_log("Reached %s\n", __func__); | |
1da177e4 | 1121 | |
c94964a4 | 1122 | if (floppy->openers == 1) { |
e996fc8a | 1123 | ide_floppy_set_media_lock(drive, 0); |
ea68d270 | 1124 | drive->atapi_flags &= ~IDE_AFLAG_FORMAT_IN_PROGRESS; |
1da177e4 | 1125 | } |
c94964a4 BZ |
1126 | |
1127 | floppy->openers--; | |
1da177e4 LT |
1128 | |
1129 | ide_floppy_put(floppy); | |
1130 | ||
1131 | return 0; | |
1132 | } | |
1133 | ||
a885c8c4 CH |
1134 | static int idefloppy_getgeo(struct block_device *bdev, struct hd_geometry *geo) |
1135 | { | |
1136 | struct ide_floppy_obj *floppy = ide_floppy_g(bdev->bd_disk); | |
1137 | ide_drive_t *drive = floppy->drive; | |
1138 | ||
1139 | geo->heads = drive->bios_head; | |
1140 | geo->sectors = drive->bios_sect; | |
1141 | geo->cylinders = (u16)drive->bios_cyl; /* truncate */ | |
1142 | return 0; | |
1143 | } | |
1144 | ||
ea68d270 BP |
1145 | static int ide_floppy_lockdoor(ide_drive_t *drive, struct ide_atapi_pc *pc, |
1146 | unsigned long arg, unsigned int cmd) | |
20bf7bda | 1147 | { |
ea68d270 | 1148 | idefloppy_floppy_t *floppy = drive->driver_data; |
e996fc8a | 1149 | int prevent = (arg && cmd != CDROMEJECT) ? 1 : 0; |
ea68d270 | 1150 | |
20bf7bda BP |
1151 | if (floppy->openers > 1) |
1152 | return -EBUSY; | |
1153 | ||
e996fc8a | 1154 | ide_floppy_set_media_lock(drive, prevent); |
20bf7bda BP |
1155 | |
1156 | if (cmd == CDROMEJECT) { | |
1157 | idefloppy_create_start_stop_cmd(pc, 2); | |
1158 | (void) idefloppy_queue_pc_tail(floppy->drive, pc); | |
1159 | } | |
1160 | ||
1161 | return 0; | |
1162 | } | |
1163 | ||
d56c99e2 | 1164 | static int ide_floppy_format_unit(ide_drive_t *drive, int __user *arg) |
20bf7bda | 1165 | { |
d56c99e2 | 1166 | idefloppy_floppy_t *floppy = drive->driver_data; |
8e555123 | 1167 | struct ide_atapi_pc pc; |
ea68d270 | 1168 | int blocks, length, flags, err = 0; |
20bf7bda BP |
1169 | |
1170 | if (floppy->openers > 1) { | |
1171 | /* Don't format if someone is using the disk */ | |
ea68d270 | 1172 | drive->atapi_flags &= ~IDE_AFLAG_FORMAT_IN_PROGRESS; |
20bf7bda BP |
1173 | return -EBUSY; |
1174 | } | |
1175 | ||
ea68d270 | 1176 | drive->atapi_flags |= IDE_AFLAG_FORMAT_IN_PROGRESS; |
20bf7bda BP |
1177 | |
1178 | /* | |
1179 | * Send ATAPI_FORMAT_UNIT to the drive. | |
1180 | * | |
1181 | * Userland gives us the following structure: | |
1182 | * | |
1183 | * struct idefloppy_format_command { | |
1184 | * int nblocks; | |
1185 | * int blocksize; | |
1186 | * int flags; | |
1187 | * } ; | |
1188 | * | |
1189 | * flags is a bitmask, currently, the only defined flag is: | |
1190 | * | |
1191 | * 0x01 - verify media after format. | |
1192 | */ | |
1193 | if (get_user(blocks, arg) || | |
1194 | get_user(length, arg+1) || | |
1195 | get_user(flags, arg+2)) { | |
1196 | err = -EFAULT; | |
1197 | goto out; | |
1198 | } | |
1199 | ||
ea68d270 | 1200 | (void) idefloppy_get_sfrp_bit(drive); |
20bf7bda BP |
1201 | idefloppy_create_format_unit_cmd(&pc, blocks, length, flags); |
1202 | ||
ea68d270 | 1203 | if (idefloppy_queue_pc_tail(drive, &pc)) |
20bf7bda BP |
1204 | err = -EIO; |
1205 | ||
1206 | out: | |
1207 | if (err) | |
ea68d270 | 1208 | drive->atapi_flags &= ~IDE_AFLAG_FORMAT_IN_PROGRESS; |
20bf7bda BP |
1209 | return err; |
1210 | } | |
1211 | ||
d56c99e2 BZ |
1212 | static int ide_floppy_format_ioctl(ide_drive_t *drive, struct file *file, |
1213 | unsigned int cmd, void __user *argp) | |
1214 | { | |
1215 | switch (cmd) { | |
1216 | case IDEFLOPPY_IOCTL_FORMAT_SUPPORTED: | |
1217 | return 0; | |
1218 | case IDEFLOPPY_IOCTL_FORMAT_GET_CAPACITY: | |
1219 | return ide_floppy_get_format_capacities(drive, argp); | |
1220 | case IDEFLOPPY_IOCTL_FORMAT_START: | |
1221 | if (!(file->f_mode & 2)) | |
1222 | return -EPERM; | |
1223 | return ide_floppy_format_unit(drive, (int __user *)argp); | |
1224 | case IDEFLOPPY_IOCTL_FORMAT_GET_PROGRESS: | |
1225 | return ide_floppy_get_format_progress(drive, argp); | |
1226 | default: | |
1227 | return -ENOTTY; | |
1228 | } | |
1229 | } | |
20bf7bda | 1230 | |
1da177e4 LT |
1231 | static int idefloppy_ioctl(struct inode *inode, struct file *file, |
1232 | unsigned int cmd, unsigned long arg) | |
1233 | { | |
1234 | struct block_device *bdev = inode->i_bdev; | |
1235 | struct ide_floppy_obj *floppy = ide_floppy_g(bdev->bd_disk); | |
1236 | ide_drive_t *drive = floppy->drive; | |
8e555123 | 1237 | struct ide_atapi_pc pc; |
1da177e4 | 1238 | void __user *argp = (void __user *)arg; |
07203f64 | 1239 | int err; |
1da177e4 | 1240 | |
d56c99e2 | 1241 | if (cmd == CDROMEJECT || cmd == CDROM_LOCKDOOR) |
ea68d270 | 1242 | return ide_floppy_lockdoor(drive, &pc, arg, cmd); |
1da177e4 | 1243 | |
d56c99e2 BZ |
1244 | err = ide_floppy_format_ioctl(drive, file, cmd, argp); |
1245 | if (err != -ENOTTY) | |
1246 | return err; | |
89636af2 BZ |
1247 | |
1248 | /* | |
1249 | * skip SCSI_IOCTL_SEND_COMMAND (deprecated) | |
1250 | * and CDROM_SEND_PACKET (legacy) ioctls | |
1251 | */ | |
1252 | if (cmd != CDROM_SEND_PACKET && cmd != SCSI_IOCTL_SEND_COMMAND) | |
1253 | err = scsi_cmd_ioctl(file, bdev->bd_disk->queue, | |
1254 | bdev->bd_disk, cmd, argp); | |
89636af2 BZ |
1255 | |
1256 | if (err == -ENOTTY) | |
1257 | err = generic_ide_ioctl(drive, file, bdev, cmd, arg); | |
1258 | ||
1259 | return err; | |
1da177e4 LT |
1260 | } |
1261 | ||
1262 | static int idefloppy_media_changed(struct gendisk *disk) | |
1263 | { | |
1264 | struct ide_floppy_obj *floppy = ide_floppy_g(disk); | |
1265 | ide_drive_t *drive = floppy->drive; | |
6e5fa7b8 | 1266 | int ret; |
1da177e4 LT |
1267 | |
1268 | /* do not scan partitions twice if this is a removable device */ | |
1269 | if (drive->attach) { | |
1270 | drive->attach = 0; | |
1271 | return 0; | |
1272 | } | |
ea68d270 BP |
1273 | ret = !!(drive->atapi_flags & IDE_AFLAG_MEDIA_CHANGED); |
1274 | drive->atapi_flags &= ~IDE_AFLAG_MEDIA_CHANGED; | |
6e5fa7b8 | 1275 | return ret; |
1da177e4 LT |
1276 | } |
1277 | ||
1278 | static int idefloppy_revalidate_disk(struct gendisk *disk) | |
1279 | { | |
1280 | struct ide_floppy_obj *floppy = ide_floppy_g(disk); | |
1281 | set_capacity(disk, idefloppy_capacity(floppy->drive)); | |
1282 | return 0; | |
1283 | } | |
1284 | ||
1285 | static struct block_device_operations idefloppy_ops = { | |
52d3ccf7 PC |
1286 | .owner = THIS_MODULE, |
1287 | .open = idefloppy_open, | |
1288 | .release = idefloppy_release, | |
1289 | .ioctl = idefloppy_ioctl, | |
1290 | .getgeo = idefloppy_getgeo, | |
1291 | .media_changed = idefloppy_media_changed, | |
1292 | .revalidate_disk = idefloppy_revalidate_disk | |
1da177e4 LT |
1293 | }; |
1294 | ||
4031bbe4 | 1295 | static int ide_floppy_probe(ide_drive_t *drive) |
1da177e4 LT |
1296 | { |
1297 | idefloppy_floppy_t *floppy; | |
1298 | struct gendisk *g; | |
1299 | ||
1300 | if (!strstr("ide-floppy", drive->driver_req)) | |
1301 | goto failed; | |
2a924662 | 1302 | |
1da177e4 LT |
1303 | if (drive->media != ide_floppy) |
1304 | goto failed; | |
2a924662 | 1305 | |
51509eec | 1306 | if (!ide_check_atapi_device(drive, DRV_NAME)) { |
0571c7a4 BP |
1307 | printk(KERN_ERR "ide-floppy: %s: not supported by this version" |
1308 | " of ide-floppy\n", drive->name); | |
1da177e4 LT |
1309 | goto failed; |
1310 | } | |
0571c7a4 BP |
1311 | floppy = kzalloc(sizeof(idefloppy_floppy_t), GFP_KERNEL); |
1312 | if (!floppy) { | |
1313 | printk(KERN_ERR "ide-floppy: %s: Can't allocate a floppy" | |
1314 | " structure\n", drive->name); | |
1da177e4 LT |
1315 | goto failed; |
1316 | } | |
1317 | ||
1318 | g = alloc_disk(1 << PARTN_BITS); | |
1319 | if (!g) | |
1320 | goto out_free_floppy; | |
1321 | ||
1322 | ide_init_disk(g, drive); | |
1323 | ||
1da177e4 LT |
1324 | kref_init(&floppy->kref); |
1325 | ||
1326 | floppy->drive = drive; | |
1327 | floppy->driver = &idefloppy_driver; | |
1328 | floppy->disk = g; | |
1329 | ||
1330 | g->private_data = &floppy->driver; | |
1331 | ||
1332 | drive->driver_data = floppy; | |
1333 | ||
0571c7a4 | 1334 | idefloppy_setup(drive, floppy); |
8604affd | 1335 | |
1da177e4 LT |
1336 | g->minors = 1 << PARTN_BITS; |
1337 | g->driverfs_dev = &drive->gendev; | |
1da177e4 LT |
1338 | g->flags = drive->removable ? GENHD_FL_REMOVABLE : 0; |
1339 | g->fops = &idefloppy_ops; | |
1340 | drive->attach = 1; | |
1341 | add_disk(g); | |
1342 | return 0; | |
1343 | ||
1da177e4 LT |
1344 | out_free_floppy: |
1345 | kfree(floppy); | |
1346 | failed: | |
8604affd | 1347 | return -ENODEV; |
1da177e4 LT |
1348 | } |
1349 | ||
0571c7a4 | 1350 | static void __exit idefloppy_exit(void) |
1da177e4 | 1351 | { |
8604affd | 1352 | driver_unregister(&idefloppy_driver.gen_driver); |
1da177e4 LT |
1353 | } |
1354 | ||
17514e8a | 1355 | static int __init idefloppy_init(void) |
1da177e4 LT |
1356 | { |
1357 | printk("ide-floppy driver " IDEFLOPPY_VERSION "\n"); | |
8604affd | 1358 | return driver_register(&idefloppy_driver.gen_driver); |
1da177e4 LT |
1359 | } |
1360 | ||
263756ec | 1361 | MODULE_ALIAS("ide:*m-floppy*"); |
1da177e4 LT |
1362 | module_init(idefloppy_init); |
1363 | module_exit(idefloppy_exit); | |
1364 | MODULE_LICENSE("GPL"); | |
0571c7a4 BP |
1365 | MODULE_DESCRIPTION("ATAPI FLOPPY Driver"); |
1366 |