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 | ||
fc6c5bc7 | 18 | #define IDEFLOPPY_VERSION "1.00" |
1da177e4 | 19 | |
1da177e4 LT |
20 | #include <linux/module.h> |
21 | #include <linux/types.h> | |
22 | #include <linux/string.h> | |
23 | #include <linux/kernel.h> | |
24 | #include <linux/delay.h> | |
25 | #include <linux/timer.h> | |
26 | #include <linux/mm.h> | |
27 | #include <linux/interrupt.h> | |
28 | #include <linux/major.h> | |
29 | #include <linux/errno.h> | |
30 | #include <linux/genhd.h> | |
31 | #include <linux/slab.h> | |
32 | #include <linux/cdrom.h> | |
33 | #include <linux/ide.h> | |
34 | #include <linux/bitops.h> | |
cf8b8975 | 35 | #include <linux/mutex.h> |
1da177e4 | 36 | |
89636af2 BZ |
37 | #include <scsi/scsi_ioctl.h> |
38 | ||
1da177e4 | 39 | #include <asm/byteorder.h> |
7e8b163b BP |
40 | #include <linux/irq.h> |
41 | #include <linux/uaccess.h> | |
42 | #include <linux/io.h> | |
1da177e4 LT |
43 | #include <asm/unaligned.h> |
44 | ||
f373bd82 | 45 | /* define to see debug info */ |
1da177e4 | 46 | #define IDEFLOPPY_DEBUG_LOG 0 |
1da177e4 LT |
47 | |
48 | /* #define IDEFLOPPY_DEBUG(fmt, args...) printk(KERN_INFO fmt, ## args) */ | |
0571c7a4 | 49 | #define IDEFLOPPY_DEBUG(fmt, args...) |
1da177e4 LT |
50 | |
51 | #if IDEFLOPPY_DEBUG_LOG | |
bcc77d9c BP |
52 | #define debug_log(fmt, args...) \ |
53 | printk(KERN_INFO "ide-floppy: " fmt, ## args) | |
1da177e4 | 54 | #else |
0571c7a4 | 55 | #define debug_log(fmt, args...) do {} while (0) |
1da177e4 LT |
56 | #endif |
57 | ||
58 | ||
0571c7a4 | 59 | /* Some drives require a longer irq timeout. */ |
1da177e4 LT |
60 | #define IDEFLOPPY_WAIT_CMD (5 * WAIT_CMD) |
61 | ||
62 | /* | |
0571c7a4 BP |
63 | * After each failed packet command we issue a request sense command and retry |
64 | * the packet command IDEFLOPPY_MAX_PC_RETRIES times. | |
1da177e4 LT |
65 | */ |
66 | #define IDEFLOPPY_MAX_PC_RETRIES 3 | |
67 | ||
68 | /* | |
0571c7a4 BP |
69 | * With each packet command, we allocate a buffer of IDEFLOPPY_PC_BUFFER_SIZE |
70 | * bytes. | |
1da177e4 LT |
71 | */ |
72 | #define IDEFLOPPY_PC_BUFFER_SIZE 256 | |
73 | ||
74 | /* | |
0571c7a4 BP |
75 | * In various places in the driver, we need to allocate storage for packet |
76 | * commands and requests, which will remain valid while we leave the driver to | |
77 | * wait for an interrupt or a timeout event. | |
1da177e4 LT |
78 | */ |
79 | #define IDEFLOPPY_PC_STACK (10 + IDEFLOPPY_MAX_PC_RETRIES) | |
80 | ||
194ec0c0 | 81 | /* format capacities descriptor codes */ |
1da177e4 LT |
82 | #define CAPACITY_INVALID 0x00 |
83 | #define CAPACITY_UNFORMATTED 0x01 | |
84 | #define CAPACITY_CURRENT 0x02 | |
85 | #define CAPACITY_NO_CARTRIDGE 0x03 | |
86 | ||
87 | /* | |
0571c7a4 BP |
88 | * Most of our global data which we need to save even as we leave the driver |
89 | * due to an interrupt or a timer event is stored in a variable of type | |
90 | * idefloppy_floppy_t, defined below. | |
1da177e4 LT |
91 | */ |
92 | typedef struct ide_floppy_obj { | |
93 | ide_drive_t *drive; | |
94 | ide_driver_t *driver; | |
95 | struct gendisk *disk; | |
96 | struct kref kref; | |
c94964a4 | 97 | unsigned int openers; /* protected by BKL for now */ |
1da177e4 LT |
98 | |
99 | /* Current packet command */ | |
8e555123 | 100 | struct ide_atapi_pc *pc; |
1da177e4 | 101 | /* Last failed packet command */ |
8e555123 | 102 | struct ide_atapi_pc *failed_pc; |
1da177e4 | 103 | /* Packet command stack */ |
8e555123 | 104 | struct ide_atapi_pc pc_stack[IDEFLOPPY_PC_STACK]; |
1da177e4 LT |
105 | /* Next free packet command storage space */ |
106 | int pc_stack_index; | |
107 | struct request rq_stack[IDEFLOPPY_PC_STACK]; | |
108 | /* We implement a circular array */ | |
109 | int rq_stack_index; | |
110 | ||
0571c7a4 | 111 | /* Last error information */ |
1da177e4 LT |
112 | u8 sense_key, asc, ascq; |
113 | /* delay this long before sending packet command */ | |
114 | u8 ticks; | |
115 | int progress_indication; | |
116 | ||
0571c7a4 | 117 | /* Device information */ |
1da177e4 LT |
118 | /* Current format */ |
119 | int blocks, block_size, bs_factor; | |
194ec0c0 BP |
120 | /* Last format capacity descriptor */ |
121 | u8 cap_desc[8]; | |
1da177e4 | 122 | /* Copy of the flexible disk page */ |
8e81bbba | 123 | u8 flexible_disk_page[32]; |
1da177e4 LT |
124 | /* Write protect */ |
125 | int wp; | |
126 | /* Supports format progress report */ | |
127 | int srfp; | |
128 | /* Status/Action flags */ | |
129 | unsigned long flags; | |
130 | } idefloppy_floppy_t; | |
131 | ||
c40d3d38 | 132 | #define IDEFLOPPY_TICKS_DELAY HZ/20 /* default delay for ZIP 100 (50ms) */ |
1da177e4 | 133 | |
6e5fa7b8 BP |
134 | /* Floppy flag bits values. */ |
135 | enum { | |
136 | /* DRQ interrupt device */ | |
137 | IDEFLOPPY_FLAG_DRQ_INTERRUPT = (1 << 0), | |
138 | /* Media may have changed */ | |
139 | IDEFLOPPY_FLAG_MEDIA_CHANGED = (1 << 1), | |
140 | /* Format in progress */ | |
141 | IDEFLOPPY_FLAG_FORMAT_IN_PROGRESS = (1 << 2), | |
142 | /* Avoid commands not supported in Clik drive */ | |
143 | IDEFLOPPY_FLAG_CLIK_DRIVE = (1 << 3), | |
144 | /* Requires BH algorithm for packets */ | |
145 | IDEFLOPPY_FLAG_ZIP_DRIVE = (1 << 4), | |
146 | }; | |
1da177e4 | 147 | |
0571c7a4 | 148 | /* Defines for the MODE SENSE command */ |
1da177e4 LT |
149 | #define MODE_SENSE_CURRENT 0x00 |
150 | #define MODE_SENSE_CHANGEABLE 0x01 | |
0571c7a4 | 151 | #define MODE_SENSE_DEFAULT 0x02 |
1da177e4 LT |
152 | #define MODE_SENSE_SAVED 0x03 |
153 | ||
0571c7a4 | 154 | /* IOCTLs used in low-level formatting. */ |
1da177e4 LT |
155 | #define IDEFLOPPY_IOCTL_FORMAT_SUPPORTED 0x4600 |
156 | #define IDEFLOPPY_IOCTL_FORMAT_GET_CAPACITY 0x4601 | |
157 | #define IDEFLOPPY_IOCTL_FORMAT_START 0x4602 | |
158 | #define IDEFLOPPY_IOCTL_FORMAT_GET_PROGRESS 0x4603 | |
159 | ||
0571c7a4 | 160 | /* Error code returned in rq->errors to the higher part of the driver. */ |
1da177e4 LT |
161 | #define IDEFLOPPY_ERROR_GENERAL 101 |
162 | ||
1da177e4 | 163 | /* |
948391d1 BP |
164 | * Pages of the SELECT SENSE / MODE SENSE packet commands. |
165 | * See SFF-8070i spec. | |
1da177e4 LT |
166 | */ |
167 | #define IDEFLOPPY_CAPABILITIES_PAGE 0x1b | |
168 | #define IDEFLOPPY_FLEXIBLE_DISK_PAGE 0x05 | |
169 | ||
cf8b8975 | 170 | static DEFINE_MUTEX(idefloppy_ref_mutex); |
1da177e4 LT |
171 | |
172 | #define to_ide_floppy(obj) container_of(obj, struct ide_floppy_obj, kref) | |
173 | ||
174 | #define ide_floppy_g(disk) \ | |
175 | container_of((disk)->private_data, struct ide_floppy_obj, driver) | |
176 | ||
177 | static struct ide_floppy_obj *ide_floppy_get(struct gendisk *disk) | |
178 | { | |
179 | struct ide_floppy_obj *floppy = NULL; | |
180 | ||
cf8b8975 | 181 | mutex_lock(&idefloppy_ref_mutex); |
1da177e4 LT |
182 | floppy = ide_floppy_g(disk); |
183 | if (floppy) | |
184 | kref_get(&floppy->kref); | |
cf8b8975 | 185 | mutex_unlock(&idefloppy_ref_mutex); |
1da177e4 LT |
186 | return floppy; |
187 | } | |
188 | ||
9a24b63d | 189 | static void idefloppy_cleanup_obj(struct kref *); |
1da177e4 LT |
190 | |
191 | static void ide_floppy_put(struct ide_floppy_obj *floppy) | |
192 | { | |
cf8b8975 | 193 | mutex_lock(&idefloppy_ref_mutex); |
9a24b63d | 194 | kref_put(&floppy->kref, idefloppy_cleanup_obj); |
cf8b8975 | 195 | mutex_unlock(&idefloppy_ref_mutex); |
1da177e4 LT |
196 | } |
197 | ||
1da177e4 | 198 | /* |
0571c7a4 BP |
199 | * Used to finish servicing a request. For read/write requests, we will call |
200 | * ide_end_request to pass to the next buffer. | |
1da177e4 | 201 | */ |
c2b2b293 | 202 | static int idefloppy_end_request(ide_drive_t *drive, int uptodate, int nsecs) |
1da177e4 LT |
203 | { |
204 | idefloppy_floppy_t *floppy = drive->driver_data; | |
205 | struct request *rq = HWGROUP(drive)->rq; | |
206 | int error; | |
207 | ||
bcc77d9c | 208 | debug_log("Reached %s\n", __func__); |
1da177e4 LT |
209 | |
210 | switch (uptodate) { | |
0571c7a4 BP |
211 | case 0: error = IDEFLOPPY_ERROR_GENERAL; break; |
212 | case 1: error = 0; break; | |
213 | default: error = uptodate; | |
1da177e4 LT |
214 | } |
215 | if (error) | |
216 | floppy->failed_pc = NULL; | |
217 | /* Why does this happen? */ | |
218 | if (!rq) | |
219 | return 0; | |
4aff5e23 | 220 | if (!blk_special_request(rq)) { |
1da177e4 LT |
221 | /* our real local end request function */ |
222 | ide_end_request(drive, uptodate, nsecs); | |
223 | return 0; | |
224 | } | |
225 | rq->errors = error; | |
226 | /* fixme: need to move this local also */ | |
227 | ide_end_drive_cmd(drive, 0, 0); | |
228 | return 0; | |
229 | } | |
230 | ||
8e555123 | 231 | static void ide_floppy_io_buffers(ide_drive_t *drive, struct ide_atapi_pc *pc, |
32925e1a | 232 | unsigned int bcount, int direction) |
1da177e4 | 233 | { |
9567b349 | 234 | ide_hwif_t *hwif = drive->hwif; |
1da177e4 | 235 | struct request *rq = pc->rq; |
5705f702 | 236 | struct req_iterator iter; |
1da177e4 LT |
237 | struct bio_vec *bvec; |
238 | unsigned long flags; | |
5705f702 | 239 | int count, done = 0; |
1da177e4 LT |
240 | char *data; |
241 | ||
5705f702 | 242 | rq_for_each_segment(bvec, rq, iter) { |
6c92e699 JA |
243 | if (!bcount) |
244 | break; | |
1da177e4 | 245 | |
6c92e699 | 246 | count = min(bvec->bv_len, bcount); |
1da177e4 | 247 | |
6c92e699 | 248 | data = bvec_kmap_irq(bvec, &flags); |
32925e1a | 249 | if (direction) |
9567b349 | 250 | hwif->output_data(drive, NULL, data, count); |
32925e1a | 251 | else |
9567b349 | 252 | hwif->input_data(drive, NULL, data, count); |
6c92e699 | 253 | bvec_kunmap_irq(data, &flags); |
1da177e4 | 254 | |
6c92e699 JA |
255 | bcount -= count; |
256 | pc->b_count += count; | |
257 | done += count; | |
1da177e4 LT |
258 | } |
259 | ||
c2b2b293 | 260 | idefloppy_end_request(drive, 1, done >> 9); |
1da177e4 LT |
261 | |
262 | if (bcount) { | |
32925e1a BP |
263 | printk(KERN_ERR "%s: leftover data in %s, bcount == %d\n", |
264 | drive->name, __func__, bcount); | |
9f87abe8 | 265 | ide_pad_transfer(drive, direction, bcount); |
1da177e4 LT |
266 | } |
267 | } | |
268 | ||
8e555123 BP |
269 | static void idefloppy_update_buffers(ide_drive_t *drive, |
270 | struct ide_atapi_pc *pc) | |
1da177e4 LT |
271 | { |
272 | struct request *rq = pc->rq; | |
273 | struct bio *bio = rq->bio; | |
274 | ||
275 | while ((bio = rq->bio) != NULL) | |
c2b2b293 | 276 | idefloppy_end_request(drive, 1, 0); |
1da177e4 LT |
277 | } |
278 | ||
279 | /* | |
0571c7a4 BP |
280 | * Generate a new packet command request in front of the request queue, before |
281 | * the current request so that it will be processed immediately, on the next | |
282 | * pass through the driver. | |
1da177e4 | 283 | */ |
8e555123 | 284 | static void idefloppy_queue_pc_head(ide_drive_t *drive, struct ide_atapi_pc *pc, |
0571c7a4 | 285 | struct request *rq) |
1da177e4 LT |
286 | { |
287 | struct ide_floppy_obj *floppy = drive->driver_data; | |
288 | ||
124cafc5 | 289 | blk_rq_init(NULL, rq); |
1da177e4 | 290 | rq->buffer = (char *) pc; |
4aff5e23 | 291 | rq->cmd_type = REQ_TYPE_SPECIAL; |
e8a96aa7 | 292 | rq->cmd_flags |= REQ_PREEMPT; |
1da177e4 | 293 | rq->rq_disk = floppy->disk; |
63f5abb0 | 294 | ide_do_drive_cmd(drive, rq); |
1da177e4 LT |
295 | } |
296 | ||
8e555123 | 297 | static struct ide_atapi_pc *idefloppy_next_pc_storage(ide_drive_t *drive) |
1da177e4 LT |
298 | { |
299 | idefloppy_floppy_t *floppy = drive->driver_data; | |
300 | ||
301 | if (floppy->pc_stack_index == IDEFLOPPY_PC_STACK) | |
0571c7a4 | 302 | floppy->pc_stack_index = 0; |
1da177e4 LT |
303 | return (&floppy->pc_stack[floppy->pc_stack_index++]); |
304 | } | |
305 | ||
0571c7a4 | 306 | static struct request *idefloppy_next_rq_storage(ide_drive_t *drive) |
1da177e4 LT |
307 | { |
308 | idefloppy_floppy_t *floppy = drive->driver_data; | |
309 | ||
310 | if (floppy->rq_stack_index == IDEFLOPPY_PC_STACK) | |
311 | floppy->rq_stack_index = 0; | |
312 | return (&floppy->rq_stack[floppy->rq_stack_index++]); | |
313 | } | |
314 | ||
81f49382 | 315 | static void ide_floppy_callback(ide_drive_t *drive) |
1da177e4 LT |
316 | { |
317 | idefloppy_floppy_t *floppy = drive->driver_data; | |
81f49382 BP |
318 | struct ide_atapi_pc *pc = floppy->pc; |
319 | int uptodate = pc->error ? 0 : 1; | |
1da177e4 | 320 | |
bcc77d9c BP |
321 | debug_log("Reached %s\n", __func__); |
322 | ||
dd2e9a03 BZ |
323 | if (floppy->failed_pc == pc) |
324 | floppy->failed_pc = NULL; | |
325 | ||
81f49382 BP |
326 | if (pc->c[0] == GPCMD_READ_10 || pc->c[0] == GPCMD_WRITE_10 || |
327 | (pc->rq && blk_pc_request(pc->rq))) | |
328 | uptodate = 1; /* FIXME */ | |
329 | else if (pc->c[0] == GPCMD_REQUEST_SENSE) { | |
330 | u8 *buf = floppy->pc->buf; | |
a6ff2d3b | 331 | |
81f49382 BP |
332 | if (!pc->error) { |
333 | floppy->sense_key = buf[2] & 0x0F; | |
334 | floppy->asc = buf[12]; | |
335 | floppy->ascq = buf[13]; | |
336 | floppy->progress_indication = buf[15] & 0x80 ? | |
337 | (u16)get_unaligned((u16 *)&buf[16]) : 0x10000; | |
a6ff2d3b | 338 | |
81f49382 BP |
339 | if (floppy->failed_pc) |
340 | debug_log("pc = %x, ", floppy->failed_pc->c[0]); | |
bcc77d9c | 341 | |
81f49382 BP |
342 | debug_log("sense key = %x, asc = %x, ascq = %x\n", |
343 | floppy->sense_key, floppy->asc, floppy->ascq); | |
344 | } else | |
345 | printk(KERN_ERR "Error in REQUEST SENSE itself - " | |
346 | "Aborting request!\n"); | |
347 | } | |
1da177e4 | 348 | |
81f49382 | 349 | idefloppy_end_request(drive, uptodate, 0); |
1da177e4 LT |
350 | } |
351 | ||
8e555123 | 352 | static void idefloppy_init_pc(struct ide_atapi_pc *pc) |
1da177e4 LT |
353 | { |
354 | memset(pc->c, 0, 12); | |
355 | pc->retries = 0; | |
356 | pc->flags = 0; | |
8e555123 BP |
357 | pc->req_xfer = 0; |
358 | pc->buf = pc->pc_buf; | |
359 | pc->buf_size = IDEFLOPPY_PC_BUFFER_SIZE; | |
1b06e92a | 360 | pc->callback = ide_floppy_callback; |
1da177e4 LT |
361 | } |
362 | ||
8e555123 | 363 | static void idefloppy_create_request_sense_cmd(struct ide_atapi_pc *pc) |
1da177e4 | 364 | { |
30d67099 BP |
365 | idefloppy_init_pc(pc); |
366 | pc->c[0] = GPCMD_REQUEST_SENSE; | |
1da177e4 | 367 | pc->c[4] = 255; |
8e555123 | 368 | pc->req_xfer = 18; |
1da177e4 LT |
369 | } |
370 | ||
371 | /* | |
0571c7a4 BP |
372 | * Called when an error was detected during the last packet command. We queue a |
373 | * request sense packet command in the head of the request list. | |
1da177e4 | 374 | */ |
0571c7a4 | 375 | static void idefloppy_retry_pc(ide_drive_t *drive) |
1da177e4 | 376 | { |
8e555123 | 377 | struct ide_atapi_pc *pc; |
1da177e4 | 378 | struct request *rq; |
1da177e4 | 379 | |
64a57fe4 | 380 | (void)ide_read_error(drive); |
1da177e4 LT |
381 | pc = idefloppy_next_pc_storage(drive); |
382 | rq = idefloppy_next_rq_storage(drive); | |
383 | idefloppy_create_request_sense_cmd(pc); | |
384 | idefloppy_queue_pc_head(drive, pc, rq); | |
385 | } | |
386 | ||
0eea6458 | 387 | /* The usual interrupt handler called during a packet command. */ |
52d3ccf7 | 388 | static ide_startstop_t idefloppy_pc_intr(ide_drive_t *drive) |
1da177e4 LT |
389 | { |
390 | idefloppy_floppy_t *floppy = drive->driver_data; | |
1da177e4 | 391 | |
646c0cb6 BZ |
392 | return ide_pc_intr(drive, floppy->pc, idefloppy_pc_intr, |
393 | IDEFLOPPY_WAIT_CMD, NULL, idefloppy_update_buffers, | |
394 | idefloppy_retry_pc, NULL, ide_floppy_io_buffers); | |
1da177e4 LT |
395 | } |
396 | ||
1da177e4 | 397 | /* |
0571c7a4 BP |
398 | * What we have here is a classic case of a top half / bottom half interrupt |
399 | * service routine. In interrupt mode, the device sends an interrupt to signal | |
400 | * that it is ready to receive a packet. However, we need to delay about 2-3 | |
401 | * ticks before issuing the packet or we gets in trouble. | |
1da177e4 | 402 | * |
0571c7a4 BP |
403 | * So, follow carefully. transfer_pc1 is called as an interrupt (or directly). |
404 | * In either case, when the device says it's ready for a packet, we schedule | |
405 | * the packet transfer to occur about 2-3 ticks later in transfer_pc2. | |
1da177e4 | 406 | */ |
0571c7a4 | 407 | static int idefloppy_transfer_pc2(ide_drive_t *drive) |
1da177e4 LT |
408 | { |
409 | idefloppy_floppy_t *floppy = drive->driver_data; | |
410 | ||
411 | /* Send the actual packet */ | |
9567b349 BZ |
412 | drive->hwif->output_data(drive, NULL, floppy->pc->c, 12); |
413 | ||
1da177e4 LT |
414 | /* Timeout for the packet command */ |
415 | return IDEFLOPPY_WAIT_CMD; | |
416 | } | |
417 | ||
0571c7a4 | 418 | static ide_startstop_t idefloppy_transfer_pc1(ide_drive_t *drive) |
1da177e4 LT |
419 | { |
420 | idefloppy_floppy_t *floppy = drive->driver_data; | |
6ffb6641 | 421 | struct ide_atapi_pc *pc = floppy->pc; |
0b2eea4c BZ |
422 | ide_expiry_t *expiry; |
423 | unsigned int timeout; | |
1da177e4 | 424 | |
0571c7a4 | 425 | /* |
1da177e4 LT |
426 | * The following delay solves a problem with ATAPI Zip 100 drives |
427 | * where the Busy flag was apparently being deasserted before the | |
428 | * unit was ready to receive data. This was happening on a | |
429 | * 1200 MHz Athlon system. 10/26/01 25msec is too short, | |
430 | * 40 and 50msec work well. idefloppy_pc_intr will not be actually | |
431 | * used until after the packet is moved in about 50 msec. | |
432 | */ | |
5d41893c | 433 | if (pc->flags & PC_FLAG_ZIP_DRIVE) { |
0b2eea4c BZ |
434 | timeout = floppy->ticks; |
435 | expiry = &idefloppy_transfer_pc2; | |
436 | } else { | |
437 | timeout = IDEFLOPPY_WAIT_CMD; | |
438 | expiry = NULL; | |
439 | } | |
440 | ||
594c16d8 | 441 | return ide_transfer_pc(drive, pc, idefloppy_pc_intr, timeout, expiry); |
1da177e4 LT |
442 | } |
443 | ||
d652c138 | 444 | static void ide_floppy_report_error(idefloppy_floppy_t *floppy, |
8e555123 | 445 | struct ide_atapi_pc *pc) |
1da177e4 | 446 | { |
d652c138 | 447 | /* supress error messages resulting from Medium not present */ |
1da177e4 LT |
448 | if (floppy->sense_key == 0x02 && |
449 | floppy->asc == 0x3a && | |
450 | floppy->ascq == 0x00) | |
d652c138 BP |
451 | return; |
452 | ||
453 | printk(KERN_ERR "ide-floppy: %s: I/O error, pc = %2x, key = %2x, " | |
454 | "asc = %2x, ascq = %2x\n", | |
455 | floppy->drive->name, pc->c[0], floppy->sense_key, | |
456 | floppy->asc, floppy->ascq); | |
457 | ||
1da177e4 LT |
458 | } |
459 | ||
0571c7a4 | 460 | static ide_startstop_t idefloppy_issue_pc(ide_drive_t *drive, |
8e555123 | 461 | struct ide_atapi_pc *pc) |
1da177e4 LT |
462 | { |
463 | idefloppy_floppy_t *floppy = drive->driver_data; | |
1da177e4 | 464 | |
1da177e4 | 465 | if (floppy->failed_pc == NULL && |
30d67099 | 466 | pc->c[0] != GPCMD_REQUEST_SENSE) |
1da177e4 LT |
467 | floppy->failed_pc = pc; |
468 | /* Set the current packet command */ | |
469 | floppy->pc = pc; | |
470 | ||
757ced89 | 471 | if (pc->retries > IDEFLOPPY_MAX_PC_RETRIES) { |
6e5fa7b8 | 472 | if (!(pc->flags & PC_FLAG_SUPPRESS_ERROR)) |
757ced89 BP |
473 | ide_floppy_report_error(floppy, pc); |
474 | /* Giving up */ | |
475 | pc->error = IDEFLOPPY_ERROR_GENERAL; | |
476 | ||
1da177e4 | 477 | floppy->failed_pc = NULL; |
1b06e92a | 478 | pc->callback(drive); |
1da177e4 LT |
479 | return ide_stopped; |
480 | } | |
481 | ||
bcc77d9c | 482 | debug_log("Retry number - %d\n", pc->retries); |
1da177e4 LT |
483 | |
484 | pc->retries++; | |
1da177e4 | 485 | |
6bf1641c BZ |
486 | return ide_issue_pc(drive, pc, idefloppy_transfer_pc1, |
487 | IDEFLOPPY_WAIT_CMD, NULL); | |
1da177e4 LT |
488 | } |
489 | ||
8e555123 | 490 | static void idefloppy_create_prevent_cmd(struct ide_atapi_pc *pc, int prevent) |
1da177e4 | 491 | { |
bcc77d9c | 492 | debug_log("creating prevent removal command, prevent = %d\n", prevent); |
1da177e4 LT |
493 | |
494 | idefloppy_init_pc(pc); | |
30d67099 | 495 | pc->c[0] = GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL; |
1da177e4 LT |
496 | pc->c[4] = prevent; |
497 | } | |
498 | ||
8e555123 | 499 | static void idefloppy_create_read_capacity_cmd(struct ide_atapi_pc *pc) |
1da177e4 LT |
500 | { |
501 | idefloppy_init_pc(pc); | |
30d67099 | 502 | pc->c[0] = GPCMD_READ_FORMAT_CAPACITIES; |
1da177e4 LT |
503 | pc->c[7] = 255; |
504 | pc->c[8] = 255; | |
8e555123 | 505 | pc->req_xfer = 255; |
1da177e4 LT |
506 | } |
507 | ||
8e555123 BP |
508 | static void idefloppy_create_format_unit_cmd(struct ide_atapi_pc *pc, int b, |
509 | int l, int flags) | |
1da177e4 LT |
510 | { |
511 | idefloppy_init_pc(pc); | |
30d67099 | 512 | pc->c[0] = GPCMD_FORMAT_UNIT; |
1da177e4 LT |
513 | pc->c[1] = 0x17; |
514 | ||
8e555123 BP |
515 | memset(pc->buf, 0, 12); |
516 | pc->buf[1] = 0xA2; | |
1da177e4 LT |
517 | /* Default format list header, u8 1: FOV/DCRT/IMM bits set */ |
518 | ||
519 | if (flags & 1) /* Verify bit on... */ | |
8e555123 BP |
520 | pc->buf[1] ^= 0x20; /* ... turn off DCRT bit */ |
521 | pc->buf[3] = 8; | |
1da177e4 | 522 | |
8e555123 BP |
523 | put_unaligned(cpu_to_be32(b), (unsigned int *)(&pc->buf[4])); |
524 | put_unaligned(cpu_to_be32(l), (unsigned int *)(&pc->buf[8])); | |
525 | pc->buf_size = 12; | |
6e5fa7b8 | 526 | pc->flags |= PC_FLAG_WRITING; |
1da177e4 LT |
527 | } |
528 | ||
0571c7a4 | 529 | /* A mode sense command is used to "sense" floppy parameters. */ |
8e555123 BP |
530 | static void idefloppy_create_mode_sense_cmd(struct ide_atapi_pc *pc, |
531 | u8 page_code, u8 type) | |
1da177e4 | 532 | { |
24a5d703 | 533 | u16 length = 8; /* sizeof(Mode Parameter Header) = 8 Bytes */ |
0571c7a4 | 534 | |
1da177e4 | 535 | idefloppy_init_pc(pc); |
30d67099 | 536 | pc->c[0] = GPCMD_MODE_SENSE_10; |
1da177e4 LT |
537 | pc->c[1] = 0; |
538 | pc->c[2] = page_code + (type << 6); | |
539 | ||
540 | switch (page_code) { | |
0571c7a4 BP |
541 | case IDEFLOPPY_CAPABILITIES_PAGE: |
542 | length += 12; | |
543 | break; | |
544 | case IDEFLOPPY_FLEXIBLE_DISK_PAGE: | |
545 | length += 32; | |
546 | break; | |
547 | default: | |
548 | printk(KERN_ERR "ide-floppy: unsupported page code " | |
1da177e4 LT |
549 | "in create_mode_sense_cmd\n"); |
550 | } | |
8f622430 | 551 | put_unaligned(cpu_to_be16(length), (u16 *) &pc->c[7]); |
8e555123 | 552 | pc->req_xfer = length; |
1da177e4 LT |
553 | } |
554 | ||
8e555123 | 555 | static void idefloppy_create_start_stop_cmd(struct ide_atapi_pc *pc, int start) |
1da177e4 LT |
556 | { |
557 | idefloppy_init_pc(pc); | |
30d67099 | 558 | pc->c[0] = GPCMD_START_STOP_UNIT; |
1da177e4 LT |
559 | pc->c[4] = start; |
560 | } | |
561 | ||
8e555123 | 562 | static void idefloppy_create_test_unit_ready_cmd(struct ide_atapi_pc *pc) |
1da177e4 LT |
563 | { |
564 | idefloppy_init_pc(pc); | |
30d67099 | 565 | pc->c[0] = GPCMD_TEST_UNIT_READY; |
1da177e4 LT |
566 | } |
567 | ||
ae7e8ddc | 568 | static void idefloppy_create_rw_cmd(idefloppy_floppy_t *floppy, |
8e555123 | 569 | struct ide_atapi_pc *pc, struct request *rq, |
ae7e8ddc | 570 | unsigned long sector) |
1da177e4 LT |
571 | { |
572 | int block = sector / floppy->bs_factor; | |
573 | int blocks = rq->nr_sectors / floppy->bs_factor; | |
574 | int cmd = rq_data_dir(rq); | |
575 | ||
ae7e8ddc | 576 | debug_log("create_rw10_cmd: block == %d, blocks == %d\n", |
1da177e4 LT |
577 | block, blocks); |
578 | ||
579 | idefloppy_init_pc(pc); | |
ae7e8ddc BP |
580 | pc->c[0] = cmd == READ ? GPCMD_READ_10 : GPCMD_WRITE_10; |
581 | put_unaligned(cpu_to_be16(blocks), (unsigned short *)&pc->c[7]); | |
8f622430 | 582 | put_unaligned(cpu_to_be32(block), (unsigned int *) &pc->c[2]); |
ae7e8ddc | 583 | |
1da177e4 LT |
584 | pc->rq = rq; |
585 | pc->b_count = cmd == READ ? 0 : rq->bio->bi_size; | |
4aff5e23 | 586 | if (rq->cmd_flags & REQ_RW) |
6e5fa7b8 | 587 | pc->flags |= PC_FLAG_WRITING; |
8e555123 BP |
588 | pc->buf = NULL; |
589 | pc->req_xfer = pc->buf_size = blocks * floppy->block_size; | |
5e331095 | 590 | pc->flags |= PC_FLAG_DMA_OK; |
1da177e4 LT |
591 | } |
592 | ||
0571c7a4 | 593 | static void idefloppy_blockpc_cmd(idefloppy_floppy_t *floppy, |
8e555123 | 594 | struct ide_atapi_pc *pc, struct request *rq) |
1da177e4 | 595 | { |
1da177e4 LT |
596 | idefloppy_init_pc(pc); |
597 | memcpy(pc->c, rq->cmd, sizeof(pc->c)); | |
3d6392cf JA |
598 | pc->rq = rq; |
599 | pc->b_count = rq->data_len; | |
600 | if (rq->data_len && rq_data_dir(rq) == WRITE) | |
6e5fa7b8 | 601 | pc->flags |= PC_FLAG_WRITING; |
8e555123 | 602 | pc->buf = rq->data; |
3d6392cf | 603 | if (rq->bio) |
5e331095 | 604 | pc->flags |= PC_FLAG_DMA_OK; |
3d6392cf JA |
605 | /* |
606 | * possibly problematic, doesn't look like ide-floppy correctly | |
607 | * handled scattered requests if dma fails... | |
608 | */ | |
8e555123 | 609 | pc->req_xfer = pc->buf_size = rq->data_len; |
1da177e4 LT |
610 | } |
611 | ||
0571c7a4 BP |
612 | static ide_startstop_t idefloppy_do_request(ide_drive_t *drive, |
613 | struct request *rq, sector_t block_s) | |
1da177e4 LT |
614 | { |
615 | idefloppy_floppy_t *floppy = drive->driver_data; | |
8e555123 | 616 | struct ide_atapi_pc *pc; |
1da177e4 LT |
617 | unsigned long block = (unsigned long)block_s; |
618 | ||
bcc77d9c | 619 | debug_log("dev: %s, cmd_type: %x, errors: %d\n", |
18cddac3 | 620 | rq->rq_disk ? rq->rq_disk->disk_name : "?", |
bcc77d9c BP |
621 | rq->cmd_type, rq->errors); |
622 | debug_log("sector: %ld, nr_sectors: %ld, " | |
1da177e4 LT |
623 | "current_nr_sectors: %d\n", (long)rq->sector, |
624 | rq->nr_sectors, rq->current_nr_sectors); | |
625 | ||
626 | if (rq->errors >= ERROR_MAX) { | |
d652c138 BP |
627 | if (floppy->failed_pc) |
628 | ide_floppy_report_error(floppy, floppy->failed_pc); | |
1da177e4 LT |
629 | else |
630 | printk(KERN_ERR "ide-floppy: %s: I/O error\n", | |
631 | drive->name); | |
c2b2b293 | 632 | idefloppy_end_request(drive, 0, 0); |
1da177e4 LT |
633 | return ide_stopped; |
634 | } | |
4aff5e23 | 635 | if (blk_fs_request(rq)) { |
1da177e4 LT |
636 | if (((long)rq->sector % floppy->bs_factor) || |
637 | (rq->nr_sectors % floppy->bs_factor)) { | |
0571c7a4 BP |
638 | printk(KERN_ERR "%s: unsupported r/w request size\n", |
639 | drive->name); | |
c2b2b293 | 640 | idefloppy_end_request(drive, 0, 0); |
1da177e4 LT |
641 | return ide_stopped; |
642 | } | |
643 | pc = idefloppy_next_pc_storage(drive); | |
644 | idefloppy_create_rw_cmd(floppy, pc, rq, block); | |
4aff5e23 | 645 | } else if (blk_special_request(rq)) { |
8e555123 | 646 | pc = (struct ide_atapi_pc *) rq->buffer; |
4aff5e23 | 647 | } else if (blk_pc_request(rq)) { |
1da177e4 | 648 | pc = idefloppy_next_pc_storage(drive); |
3d6392cf | 649 | idefloppy_blockpc_cmd(floppy, pc, rq); |
1da177e4 LT |
650 | } else { |
651 | blk_dump_rq_flags(rq, | |
652 | "ide-floppy: unsupported command in queue"); | |
c2b2b293 | 653 | idefloppy_end_request(drive, 0, 0); |
1da177e4 LT |
654 | return ide_stopped; |
655 | } | |
656 | ||
28c7214b BZ |
657 | if (floppy->flags & IDEFLOPPY_FLAG_DRQ_INTERRUPT) |
658 | pc->flags |= PC_FLAG_DRQ_INTERRUPT; | |
659 | ||
5d41893c BZ |
660 | if (floppy->flags & IDEFLOPPY_FLAG_ZIP_DRIVE) |
661 | pc->flags |= PC_FLAG_ZIP_DRIVE; | |
662 | ||
1da177e4 | 663 | pc->rq = rq; |
5d41893c | 664 | |
1da177e4 LT |
665 | return idefloppy_issue_pc(drive, pc); |
666 | } | |
667 | ||
668 | /* | |
0571c7a4 BP |
669 | * Add a special packet command request to the tail of the request queue, |
670 | * and wait for it to be serviced. | |
1da177e4 | 671 | */ |
8e555123 | 672 | static int idefloppy_queue_pc_tail(ide_drive_t *drive, struct ide_atapi_pc *pc) |
1da177e4 LT |
673 | { |
674 | struct ide_floppy_obj *floppy = drive->driver_data; | |
6fe16238 FT |
675 | struct request *rq; |
676 | int error; | |
1da177e4 | 677 | |
6fe16238 FT |
678 | rq = blk_get_request(drive->queue, READ, __GFP_WAIT); |
679 | rq->buffer = (char *) pc; | |
680 | rq->cmd_type = REQ_TYPE_SPECIAL; | |
681 | error = blk_execute_rq(drive->queue, floppy->disk, rq, 0); | |
682 | blk_put_request(rq); | |
1da177e4 | 683 | |
6fe16238 | 684 | return error; |
1da177e4 LT |
685 | } |
686 | ||
687 | /* | |
8e81bbba BP |
688 | * Look at the flexible disk page parameters. We ignore the CHS capacity |
689 | * parameters and use the LBA parameters instead. | |
1da177e4 | 690 | */ |
8e81bbba | 691 | static int ide_floppy_get_flexible_disk_page(ide_drive_t *drive) |
1da177e4 LT |
692 | { |
693 | idefloppy_floppy_t *floppy = drive->driver_data; | |
8e555123 | 694 | struct ide_atapi_pc pc; |
8e81bbba | 695 | u8 *page; |
1da177e4 | 696 | int capacity, lba_capacity; |
8e81bbba BP |
697 | u16 transfer_rate, sector_size, cyls, rpm; |
698 | u8 heads, sectors; | |
1da177e4 | 699 | |
8e81bbba BP |
700 | idefloppy_create_mode_sense_cmd(&pc, IDEFLOPPY_FLEXIBLE_DISK_PAGE, |
701 | MODE_SENSE_CURRENT); | |
702 | ||
703 | if (idefloppy_queue_pc_tail(drive, &pc)) { | |
704 | printk(KERN_ERR "ide-floppy: Can't get flexible disk page" | |
705 | " parameters\n"); | |
1da177e4 LT |
706 | return 1; |
707 | } | |
8e555123 | 708 | floppy->wp = !!(pc.buf[3] & 0x80); |
1da177e4 | 709 | set_disk_ro(floppy->disk, floppy->wp); |
8e555123 | 710 | page = &pc.buf[8]; |
8e81bbba | 711 | |
8e555123 BP |
712 | transfer_rate = be16_to_cpu(*(u16 *)&pc.buf[8 + 2]); |
713 | sector_size = be16_to_cpu(*(u16 *)&pc.buf[8 + 6]); | |
714 | cyls = be16_to_cpu(*(u16 *)&pc.buf[8 + 8]); | |
715 | rpm = be16_to_cpu(*(u16 *)&pc.buf[8 + 28]); | |
716 | heads = pc.buf[8 + 4]; | |
717 | sectors = pc.buf[8 + 5]; | |
8e81bbba BP |
718 | |
719 | capacity = cyls * heads * sectors * sector_size; | |
720 | ||
721 | if (memcmp(page, &floppy->flexible_disk_page, 32)) | |
1da177e4 LT |
722 | printk(KERN_INFO "%s: %dkB, %d/%d/%d CHS, %d kBps, " |
723 | "%d sector size, %d rpm\n", | |
8e81bbba BP |
724 | drive->name, capacity / 1024, cyls, heads, |
725 | sectors, transfer_rate / 8, sector_size, rpm); | |
726 | ||
727 | memcpy(&floppy->flexible_disk_page, page, 32); | |
728 | drive->bios_cyl = cyls; | |
729 | drive->bios_head = heads; | |
730 | drive->bios_sect = sectors; | |
1da177e4 | 731 | lba_capacity = floppy->blocks * floppy->block_size; |
8e81bbba | 732 | |
1da177e4 LT |
733 | if (capacity < lba_capacity) { |
734 | printk(KERN_NOTICE "%s: The disk reports a capacity of %d " | |
735 | "bytes, but the drive only handles %d\n", | |
736 | drive->name, lba_capacity, capacity); | |
8e81bbba BP |
737 | floppy->blocks = floppy->block_size ? |
738 | capacity / floppy->block_size : 0; | |
1da177e4 LT |
739 | } |
740 | return 0; | |
741 | } | |
742 | ||
948391d1 | 743 | static int idefloppy_get_sfrp_bit(ide_drive_t *drive) |
1da177e4 LT |
744 | { |
745 | idefloppy_floppy_t *floppy = drive->driver_data; | |
8e555123 | 746 | struct ide_atapi_pc pc; |
1da177e4 LT |
747 | |
748 | floppy->srfp = 0; | |
749 | idefloppy_create_mode_sense_cmd(&pc, IDEFLOPPY_CAPABILITIES_PAGE, | |
750 | MODE_SENSE_CURRENT); | |
751 | ||
6e5fa7b8 | 752 | pc.flags |= PC_FLAG_SUPPRESS_ERROR; |
948391d1 | 753 | if (idefloppy_queue_pc_tail(drive, &pc)) |
1da177e4 | 754 | return 1; |
1da177e4 | 755 | |
8e555123 | 756 | floppy->srfp = pc.buf[8 + 2] & 0x40; |
1da177e4 LT |
757 | return (0); |
758 | } | |
759 | ||
760 | /* | |
194ec0c0 BP |
761 | * Determine if a media is present in the floppy drive, and if so, its LBA |
762 | * capacity. | |
1da177e4 | 763 | */ |
194ec0c0 | 764 | static int ide_floppy_get_capacity(ide_drive_t *drive) |
1da177e4 LT |
765 | { |
766 | idefloppy_floppy_t *floppy = drive->driver_data; | |
8e555123 | 767 | struct ide_atapi_pc pc; |
194ec0c0 BP |
768 | u8 *cap_desc; |
769 | u8 header_len, desc_cnt; | |
770 | int i, rc = 1, blocks, length; | |
771 | ||
1da177e4 LT |
772 | drive->bios_cyl = 0; |
773 | drive->bios_head = drive->bios_sect = 0; | |
fdb77da4 AC |
774 | floppy->blocks = 0; |
775 | floppy->bs_factor = 1; | |
1da177e4 LT |
776 | set_capacity(floppy->disk, 0); |
777 | ||
778 | idefloppy_create_read_capacity_cmd(&pc); | |
779 | if (idefloppy_queue_pc_tail(drive, &pc)) { | |
780 | printk(KERN_ERR "ide-floppy: Can't get floppy parameters\n"); | |
781 | return 1; | |
782 | } | |
8e555123 BP |
783 | header_len = pc.buf[3]; |
784 | cap_desc = &pc.buf[4]; | |
194ec0c0 BP |
785 | desc_cnt = header_len / 8; /* capacity descriptor of 8 bytes */ |
786 | ||
787 | for (i = 0; i < desc_cnt; i++) { | |
788 | unsigned int desc_start = 4 + i*8; | |
789 | ||
8e555123 BP |
790 | blocks = be32_to_cpu(*(u32 *)&pc.buf[desc_start]); |
791 | length = be16_to_cpu(*(u16 *)&pc.buf[desc_start + 6]); | |
194ec0c0 BP |
792 | |
793 | debug_log("Descriptor %d: %dkB, %d blocks, %d sector size\n", | |
794 | i, blocks * length / 1024, blocks, length); | |
1da177e4 | 795 | |
194ec0c0 BP |
796 | if (i) |
797 | continue; | |
798 | /* | |
799 | * the code below is valid only for the 1st descriptor, ie i=0 | |
800 | */ | |
1da177e4 | 801 | |
8e555123 | 802 | switch (pc.buf[desc_start + 4] & 0x03) { |
1da177e4 LT |
803 | /* Clik! drive returns this instead of CAPACITY_CURRENT */ |
804 | case CAPACITY_UNFORMATTED: | |
6e5fa7b8 | 805 | if (!(floppy->flags & IDEFLOPPY_FLAG_CLIK_DRIVE)) |
0571c7a4 | 806 | /* |
1da177e4 LT |
807 | * If it is not a clik drive, break out |
808 | * (maintains previous driver behaviour) | |
809 | */ | |
810 | break; | |
811 | case CAPACITY_CURRENT: | |
812 | /* Normal Zip/LS-120 disks */ | |
194ec0c0 | 813 | if (memcmp(cap_desc, &floppy->cap_desc, 8)) |
1da177e4 LT |
814 | printk(KERN_INFO "%s: %dkB, %d blocks, %d " |
815 | "sector size\n", drive->name, | |
816 | blocks * length / 1024, blocks, length); | |
194ec0c0 BP |
817 | memcpy(&floppy->cap_desc, cap_desc, 8); |
818 | ||
1da177e4 LT |
819 | if (!length || length % 512) { |
820 | printk(KERN_NOTICE "%s: %d bytes block size " | |
821 | "not supported\n", drive->name, length); | |
822 | } else { | |
194ec0c0 BP |
823 | floppy->blocks = blocks; |
824 | floppy->block_size = length; | |
825 | floppy->bs_factor = length / 512; | |
826 | if (floppy->bs_factor != 1) | |
827 | printk(KERN_NOTICE "%s: warning: non " | |
1da177e4 LT |
828 | "512 bytes block size not " |
829 | "fully supported\n", | |
830 | drive->name); | |
194ec0c0 | 831 | rc = 0; |
1da177e4 LT |
832 | } |
833 | break; | |
834 | case CAPACITY_NO_CARTRIDGE: | |
835 | /* | |
836 | * This is a KERN_ERR so it appears on screen | |
837 | * for the user to see | |
838 | */ | |
839 | printk(KERN_ERR "%s: No disk in drive\n", drive->name); | |
840 | break; | |
841 | case CAPACITY_INVALID: | |
842 | printk(KERN_ERR "%s: Invalid capacity for disk " | |
843 | "in drive\n", drive->name); | |
844 | break; | |
845 | } | |
194ec0c0 | 846 | debug_log("Descriptor 0 Code: %d\n", |
8e555123 | 847 | pc.buf[desc_start + 4] & 0x03); |
1da177e4 LT |
848 | } |
849 | ||
850 | /* Clik! disk does not support get_flexible_disk_page */ | |
6e5fa7b8 | 851 | if (!(floppy->flags & IDEFLOPPY_FLAG_CLIK_DRIVE)) |
8e81bbba | 852 | (void) ide_floppy_get_flexible_disk_page(drive); |
1da177e4 LT |
853 | |
854 | set_capacity(floppy->disk, floppy->blocks * floppy->bs_factor); | |
855 | return rc; | |
856 | } | |
857 | ||
858 | /* | |
194ec0c0 BP |
859 | * Obtain the list of formattable capacities. |
860 | * Very similar to ide_floppy_get_capacity, except that we push the capacity | |
861 | * descriptors to userland, instead of our own structures. | |
862 | * | |
863 | * Userland gives us the following structure: | |
864 | * | |
865 | * struct idefloppy_format_capacities { | |
866 | * int nformats; | |
867 | * struct { | |
868 | * int nblocks; | |
869 | * int blocksize; | |
870 | * } formats[]; | |
871 | * }; | |
872 | * | |
873 | * userland initializes nformats to the number of allocated formats[] records. | |
874 | * On exit we set nformats to the number of records we've actually initialized. | |
875 | */ | |
1da177e4 | 876 | |
194ec0c0 | 877 | static int ide_floppy_get_format_capacities(ide_drive_t *drive, int __user *arg) |
1da177e4 | 878 | { |
8e555123 | 879 | struct ide_atapi_pc pc; |
194ec0c0 BP |
880 | u8 header_len, desc_cnt; |
881 | int i, blocks, length, u_array_size, u_index; | |
1da177e4 LT |
882 | int __user *argp; |
883 | ||
884 | if (get_user(u_array_size, arg)) | |
885 | return (-EFAULT); | |
886 | ||
887 | if (u_array_size <= 0) | |
888 | return (-EINVAL); | |
889 | ||
890 | idefloppy_create_read_capacity_cmd(&pc); | |
891 | if (idefloppy_queue_pc_tail(drive, &pc)) { | |
892 | printk(KERN_ERR "ide-floppy: Can't get floppy parameters\n"); | |
194ec0c0 BP |
893 | return (-EIO); |
894 | } | |
8e555123 | 895 | header_len = pc.buf[3]; |
194ec0c0 | 896 | desc_cnt = header_len / 8; /* capacity descriptor of 8 bytes */ |
1da177e4 LT |
897 | |
898 | u_index = 0; | |
899 | argp = arg + 1; | |
900 | ||
901 | /* | |
194ec0c0 BP |
902 | * We always skip the first capacity descriptor. That's the current |
903 | * capacity. We are interested in the remaining descriptors, the | |
904 | * formattable capacities. | |
905 | */ | |
906 | for (i = 1; i < desc_cnt; i++) { | |
907 | unsigned int desc_start = 4 + i*8; | |
1da177e4 | 908 | |
1da177e4 LT |
909 | if (u_index >= u_array_size) |
910 | break; /* User-supplied buffer too small */ | |
1da177e4 | 911 | |
8e555123 BP |
912 | blocks = be32_to_cpu(*(u32 *)&pc.buf[desc_start]); |
913 | length = be16_to_cpu(*(u16 *)&pc.buf[desc_start + 6]); | |
1da177e4 LT |
914 | |
915 | if (put_user(blocks, argp)) | |
916 | return(-EFAULT); | |
917 | ++argp; | |
918 | ||
919 | if (put_user(length, argp)) | |
920 | return (-EFAULT); | |
921 | ++argp; | |
922 | ||
923 | ++u_index; | |
924 | } | |
925 | ||
926 | if (put_user(u_index, arg)) | |
927 | return (-EFAULT); | |
928 | return (0); | |
929 | } | |
930 | ||
1da177e4 | 931 | /* |
0571c7a4 BP |
932 | * Get ATAPI_FORMAT_UNIT progress indication. |
933 | * | |
934 | * Userland gives a pointer to an int. The int is set to a progress | |
935 | * indicator 0-65536, with 65536=100%. | |
936 | * | |
937 | * If the drive does not support format progress indication, we just check | |
938 | * the dsc bit, and return either 0 or 65536. | |
939 | */ | |
1da177e4 LT |
940 | |
941 | static int idefloppy_get_format_progress(ide_drive_t *drive, int __user *arg) | |
942 | { | |
943 | idefloppy_floppy_t *floppy = drive->driver_data; | |
8e555123 | 944 | struct ide_atapi_pc pc; |
1da177e4 LT |
945 | int progress_indication = 0x10000; |
946 | ||
947 | if (floppy->srfp) { | |
948 | idefloppy_create_request_sense_cmd(&pc); | |
0571c7a4 | 949 | if (idefloppy_queue_pc_tail(drive, &pc)) |
1da177e4 | 950 | return (-EIO); |
1da177e4 LT |
951 | |
952 | if (floppy->sense_key == 2 && | |
953 | floppy->asc == 4 && | |
0571c7a4 | 954 | floppy->ascq == 4) |
1da177e4 | 955 | progress_indication = floppy->progress_indication; |
0571c7a4 BP |
956 | |
957 | /* Else assume format_unit has finished, and we're at 0x10000 */ | |
1da177e4 | 958 | } else { |
1da177e4 | 959 | unsigned long flags; |
22c525b9 | 960 | u8 stat; |
1da177e4 LT |
961 | |
962 | local_irq_save(flags); | |
c47137a9 | 963 | stat = ide_read_status(drive); |
1da177e4 LT |
964 | local_irq_restore(flags); |
965 | ||
22c525b9 | 966 | progress_indication = ((stat & SEEK_STAT) == 0) ? 0 : 0x10000; |
1da177e4 LT |
967 | } |
968 | if (put_user(progress_indication, arg)) | |
969 | return (-EFAULT); | |
970 | ||
971 | return (0); | |
972 | } | |
973 | ||
0571c7a4 | 974 | static sector_t idefloppy_capacity(ide_drive_t *drive) |
1da177e4 LT |
975 | { |
976 | idefloppy_floppy_t *floppy = drive->driver_data; | |
977 | unsigned long capacity = floppy->blocks * floppy->bs_factor; | |
978 | ||
979 | return capacity; | |
980 | } | |
981 | ||
982 | /* | |
f373bd82 BP |
983 | * Check whether we can support a drive, based on the ATAPI IDENTIFY command |
984 | * results. | |
1da177e4 | 985 | */ |
f373bd82 | 986 | static int idefloppy_identify_device(ide_drive_t *drive, struct hd_driveid *id) |
1da177e4 | 987 | { |
3ad6776c BP |
988 | u8 gcw[2]; |
989 | u8 device_type, protocol, removable, drq_type, packet_size; | |
1da177e4 LT |
990 | |
991 | *((u16 *) &gcw) = id->config; | |
992 | ||
3ad6776c BP |
993 | device_type = gcw[1] & 0x1F; |
994 | removable = (gcw[0] & 0x80) >> 7; | |
995 | protocol = (gcw[1] & 0xC0) >> 6; | |
996 | drq_type = (gcw[0] & 0x60) >> 5; | |
997 | packet_size = gcw[0] & 0x03; | |
998 | ||
1da177e4 LT |
999 | #ifdef CONFIG_PPC |
1000 | /* kludge for Apple PowerBook internal zip */ | |
3ad6776c BP |
1001 | if (device_type == 5 && |
1002 | !strstr(id->model, "CD-ROM") && strstr(id->model, "ZIP")) | |
1003 | device_type = 0; | |
1da177e4 LT |
1004 | #endif |
1005 | ||
3ad6776c | 1006 | if (protocol != 2) |
f373bd82 | 1007 | printk(KERN_ERR "ide-floppy: Protocol (0x%02x) is not ATAPI\n", |
3ad6776c BP |
1008 | protocol); |
1009 | else if (device_type != 0) | |
f373bd82 | 1010 | printk(KERN_ERR "ide-floppy: Device type (0x%02x) is not set " |
3ad6776c BP |
1011 | "to floppy\n", device_type); |
1012 | else if (!removable) | |
1da177e4 | 1013 | printk(KERN_ERR "ide-floppy: The removable flag is not set\n"); |
3ad6776c | 1014 | else if (drq_type == 3) |
f373bd82 | 1015 | printk(KERN_ERR "ide-floppy: Sorry, DRQ type (0x%02x) not " |
3ad6776c BP |
1016 | "supported\n", drq_type); |
1017 | else if (packet_size != 0) | |
f373bd82 | 1018 | printk(KERN_ERR "ide-floppy: Packet size (0x%02x) is not 12 " |
3ad6776c BP |
1019 | "bytes\n", packet_size); |
1020 | else | |
1da177e4 LT |
1021 | return 1; |
1022 | return 0; | |
1023 | } | |
1024 | ||
7662d046 | 1025 | #ifdef CONFIG_IDE_PROC_FS |
1da177e4 LT |
1026 | static void idefloppy_add_settings(ide_drive_t *drive) |
1027 | { | |
1028 | idefloppy_floppy_t *floppy = drive->driver_data; | |
1029 | ||
0571c7a4 BP |
1030 | ide_add_setting(drive, "bios_cyl", SETTING_RW, TYPE_INT, 0, 1023, 1, 1, |
1031 | &drive->bios_cyl, NULL); | |
1032 | ide_add_setting(drive, "bios_head", SETTING_RW, TYPE_BYTE, 0, 255, 1, 1, | |
1033 | &drive->bios_head, NULL); | |
1034 | ide_add_setting(drive, "bios_sect", SETTING_RW, TYPE_BYTE, 0, 63, 1, 1, | |
1035 | &drive->bios_sect, NULL); | |
1036 | ide_add_setting(drive, "ticks", SETTING_RW, TYPE_BYTE, 0, 255, 1, 1, | |
1037 | &floppy->ticks, NULL); | |
1da177e4 | 1038 | } |
7662d046 BZ |
1039 | #else |
1040 | static inline void idefloppy_add_settings(ide_drive_t *drive) { ; } | |
1041 | #endif | |
1da177e4 | 1042 | |
0571c7a4 | 1043 | static void idefloppy_setup(ide_drive_t *drive, idefloppy_floppy_t *floppy) |
1da177e4 | 1044 | { |
3ad6776c | 1045 | u8 gcw[2]; |
1da177e4 LT |
1046 | |
1047 | *((u16 *) &gcw) = drive->id->config; | |
1048 | floppy->pc = floppy->pc_stack; | |
3ad6776c BP |
1049 | |
1050 | if (((gcw[0] & 0x60) >> 5) == 1) | |
6e5fa7b8 | 1051 | floppy->flags |= IDEFLOPPY_FLAG_DRQ_INTERRUPT; |
1da177e4 | 1052 | /* |
0571c7a4 BP |
1053 | * We used to check revisions here. At this point however I'm giving up. |
1054 | * Just assume they are all broken, its easier. | |
1da177e4 | 1055 | * |
0571c7a4 BP |
1056 | * The actual reason for the workarounds was likely a driver bug after |
1057 | * all rather than a firmware bug, and the workaround below used to hide | |
1058 | * it. It should be fixed as of version 1.9, but to be on the safe side | |
1059 | * we'll leave the limitation below for the 2.2.x tree. | |
1da177e4 | 1060 | */ |
1da177e4 | 1061 | if (!strncmp(drive->id->model, "IOMEGA ZIP 100 ATAPI", 20)) { |
6e5fa7b8 | 1062 | floppy->flags |= IDEFLOPPY_FLAG_ZIP_DRIVE; |
1da177e4 LT |
1063 | /* This value will be visible in the /proc/ide/hdx/settings */ |
1064 | floppy->ticks = IDEFLOPPY_TICKS_DELAY; | |
1065 | blk_queue_max_sectors(drive->queue, 64); | |
1066 | } | |
1067 | ||
1068 | /* | |
0571c7a4 BP |
1069 | * Guess what? The IOMEGA Clik! drive also needs the above fix. It makes |
1070 | * nasty clicking noises without it, so please don't remove this. | |
1071 | */ | |
1da177e4 LT |
1072 | if (strncmp(drive->id->model, "IOMEGA Clik!", 11) == 0) { |
1073 | blk_queue_max_sectors(drive->queue, 64); | |
6e5fa7b8 | 1074 | floppy->flags |= IDEFLOPPY_FLAG_CLIK_DRIVE; |
1da177e4 LT |
1075 | } |
1076 | ||
194ec0c0 | 1077 | (void) ide_floppy_get_capacity(drive); |
1da177e4 LT |
1078 | idefloppy_add_settings(drive); |
1079 | } | |
1080 | ||
4031bbe4 | 1081 | static void ide_floppy_remove(ide_drive_t *drive) |
1da177e4 LT |
1082 | { |
1083 | idefloppy_floppy_t *floppy = drive->driver_data; | |
1084 | struct gendisk *g = floppy->disk; | |
1085 | ||
7662d046 | 1086 | ide_proc_unregister_driver(drive, floppy->driver); |
1da177e4 LT |
1087 | |
1088 | del_gendisk(g); | |
1089 | ||
1090 | ide_floppy_put(floppy); | |
1da177e4 LT |
1091 | } |
1092 | ||
9a24b63d | 1093 | static void idefloppy_cleanup_obj(struct kref *kref) |
1da177e4 LT |
1094 | { |
1095 | struct ide_floppy_obj *floppy = to_ide_floppy(kref); | |
1096 | ide_drive_t *drive = floppy->drive; | |
1097 | struct gendisk *g = floppy->disk; | |
1098 | ||
1099 | drive->driver_data = NULL; | |
1100 | g->private_data = NULL; | |
1101 | put_disk(g); | |
1102 | kfree(floppy); | |
1103 | } | |
1104 | ||
ecfd80e4 | 1105 | #ifdef CONFIG_IDE_PROC_FS |
0571c7a4 BP |
1106 | static int proc_idefloppy_read_capacity(char *page, char **start, off_t off, |
1107 | int count, int *eof, void *data) | |
1da177e4 LT |
1108 | { |
1109 | ide_drive_t*drive = (ide_drive_t *)data; | |
1110 | int len; | |
1111 | ||
0571c7a4 BP |
1112 | len = sprintf(page, "%llu\n", (long long)idefloppy_capacity(drive)); |
1113 | PROC_IDE_READ_RETURN(page, start, off, count, eof, len); | |
1da177e4 LT |
1114 | } |
1115 | ||
1116 | static ide_proc_entry_t idefloppy_proc[] = { | |
0571c7a4 BP |
1117 | { "capacity", S_IFREG|S_IRUGO, proc_idefloppy_read_capacity, NULL }, |
1118 | { "geometry", S_IFREG|S_IRUGO, proc_ide_read_geometry, NULL }, | |
1da177e4 LT |
1119 | { NULL, 0, NULL, NULL } |
1120 | }; | |
ecfd80e4 | 1121 | #endif /* CONFIG_IDE_PROC_FS */ |
1da177e4 | 1122 | |
4031bbe4 | 1123 | static int ide_floppy_probe(ide_drive_t *); |
1da177e4 | 1124 | |
1da177e4 | 1125 | static ide_driver_t idefloppy_driver = { |
8604affd | 1126 | .gen_driver = { |
4ef3b8f4 | 1127 | .owner = THIS_MODULE, |
8604affd BZ |
1128 | .name = "ide-floppy", |
1129 | .bus = &ide_bus_type, | |
8604affd | 1130 | }, |
4031bbe4 RK |
1131 | .probe = ide_floppy_probe, |
1132 | .remove = ide_floppy_remove, | |
1da177e4 LT |
1133 | .version = IDEFLOPPY_VERSION, |
1134 | .media = ide_floppy, | |
1da177e4 | 1135 | .supports_dsc_overlap = 0, |
1da177e4 | 1136 | .do_request = idefloppy_do_request, |
c2b2b293 | 1137 | .end_request = idefloppy_end_request, |
1da177e4 LT |
1138 | .error = __ide_error, |
1139 | .abort = __ide_abort, | |
7662d046 | 1140 | #ifdef CONFIG_IDE_PROC_FS |
1da177e4 | 1141 | .proc = idefloppy_proc, |
7662d046 | 1142 | #endif |
1da177e4 LT |
1143 | }; |
1144 | ||
1145 | static int idefloppy_open(struct inode *inode, struct file *filp) | |
1146 | { | |
1147 | struct gendisk *disk = inode->i_bdev->bd_disk; | |
1148 | struct ide_floppy_obj *floppy; | |
1149 | ide_drive_t *drive; | |
8e555123 | 1150 | struct ide_atapi_pc pc; |
1da177e4 LT |
1151 | int ret = 0; |
1152 | ||
bcc77d9c | 1153 | debug_log("Reached %s\n", __func__); |
1da177e4 | 1154 | |
0571c7a4 BP |
1155 | floppy = ide_floppy_get(disk); |
1156 | if (!floppy) | |
1da177e4 LT |
1157 | return -ENXIO; |
1158 | ||
1159 | drive = floppy->drive; | |
1160 | ||
c94964a4 | 1161 | floppy->openers++; |
1da177e4 | 1162 | |
c94964a4 | 1163 | if (floppy->openers == 1) { |
6e5fa7b8 | 1164 | floppy->flags &= ~IDEFLOPPY_FLAG_FORMAT_IN_PROGRESS; |
1da177e4 LT |
1165 | /* Just in case */ |
1166 | ||
1167 | idefloppy_create_test_unit_ready_cmd(&pc); | |
1168 | if (idefloppy_queue_pc_tail(drive, &pc)) { | |
1169 | idefloppy_create_start_stop_cmd(&pc, 1); | |
1170 | (void) idefloppy_queue_pc_tail(drive, &pc); | |
1171 | } | |
1172 | ||
194ec0c0 | 1173 | if (ide_floppy_get_capacity(drive) |
1da177e4 LT |
1174 | && (filp->f_flags & O_NDELAY) == 0 |
1175 | /* | |
0571c7a4 BP |
1176 | * Allow O_NDELAY to open a drive without a disk, or with an |
1177 | * unreadable disk, so that we can get the format capacity | |
1178 | * of the drive or begin the format - Sam | |
1179 | */ | |
1da177e4 | 1180 | ) { |
1da177e4 LT |
1181 | ret = -EIO; |
1182 | goto out_put_floppy; | |
1183 | } | |
1184 | ||
1185 | if (floppy->wp && (filp->f_mode & 2)) { | |
1da177e4 LT |
1186 | ret = -EROFS; |
1187 | goto out_put_floppy; | |
1188 | } | |
6e5fa7b8 | 1189 | floppy->flags |= IDEFLOPPY_FLAG_MEDIA_CHANGED; |
1da177e4 | 1190 | /* IOMEGA Clik! drives do not support lock/unlock commands */ |
6e5fa7b8 | 1191 | if (!(floppy->flags & IDEFLOPPY_FLAG_CLIK_DRIVE)) { |
1da177e4 LT |
1192 | idefloppy_create_prevent_cmd(&pc, 1); |
1193 | (void) idefloppy_queue_pc_tail(drive, &pc); | |
1194 | } | |
1195 | check_disk_change(inode->i_bdev); | |
6e5fa7b8 | 1196 | } else if (floppy->flags & IDEFLOPPY_FLAG_FORMAT_IN_PROGRESS) { |
1da177e4 LT |
1197 | ret = -EBUSY; |
1198 | goto out_put_floppy; | |
1199 | } | |
1200 | return 0; | |
1201 | ||
1202 | out_put_floppy: | |
c94964a4 | 1203 | floppy->openers--; |
1da177e4 LT |
1204 | ide_floppy_put(floppy); |
1205 | return ret; | |
1206 | } | |
1207 | ||
1208 | static int idefloppy_release(struct inode *inode, struct file *filp) | |
1209 | { | |
1210 | struct gendisk *disk = inode->i_bdev->bd_disk; | |
1211 | struct ide_floppy_obj *floppy = ide_floppy_g(disk); | |
1212 | ide_drive_t *drive = floppy->drive; | |
8e555123 | 1213 | struct ide_atapi_pc pc; |
bcc77d9c BP |
1214 | |
1215 | debug_log("Reached %s\n", __func__); | |
1da177e4 | 1216 | |
c94964a4 | 1217 | if (floppy->openers == 1) { |
1da177e4 | 1218 | /* IOMEGA Clik! drives do not support lock/unlock commands */ |
6e5fa7b8 | 1219 | if (!(floppy->flags & IDEFLOPPY_FLAG_CLIK_DRIVE)) { |
1da177e4 LT |
1220 | idefloppy_create_prevent_cmd(&pc, 0); |
1221 | (void) idefloppy_queue_pc_tail(drive, &pc); | |
1222 | } | |
1223 | ||
6e5fa7b8 | 1224 | floppy->flags &= ~IDEFLOPPY_FLAG_FORMAT_IN_PROGRESS; |
1da177e4 | 1225 | } |
c94964a4 BZ |
1226 | |
1227 | floppy->openers--; | |
1da177e4 LT |
1228 | |
1229 | ide_floppy_put(floppy); | |
1230 | ||
1231 | return 0; | |
1232 | } | |
1233 | ||
a885c8c4 CH |
1234 | static int idefloppy_getgeo(struct block_device *bdev, struct hd_geometry *geo) |
1235 | { | |
1236 | struct ide_floppy_obj *floppy = ide_floppy_g(bdev->bd_disk); | |
1237 | ide_drive_t *drive = floppy->drive; | |
1238 | ||
1239 | geo->heads = drive->bios_head; | |
1240 | geo->sectors = drive->bios_sect; | |
1241 | geo->cylinders = (u16)drive->bios_cyl; /* truncate */ | |
1242 | return 0; | |
1243 | } | |
1244 | ||
8e555123 BP |
1245 | static int ide_floppy_lockdoor(idefloppy_floppy_t *floppy, |
1246 | struct ide_atapi_pc *pc, unsigned long arg, unsigned int cmd) | |
20bf7bda BP |
1247 | { |
1248 | if (floppy->openers > 1) | |
1249 | return -EBUSY; | |
1250 | ||
1251 | /* The IOMEGA Clik! Drive doesn't support this command - | |
1252 | * no room for an eject mechanism */ | |
6e5fa7b8 | 1253 | if (!(floppy->flags & IDEFLOPPY_FLAG_CLIK_DRIVE)) { |
20bf7bda BP |
1254 | int prevent = arg ? 1 : 0; |
1255 | ||
1256 | if (cmd == CDROMEJECT) | |
1257 | prevent = 0; | |
1258 | ||
1259 | idefloppy_create_prevent_cmd(pc, prevent); | |
1260 | (void) idefloppy_queue_pc_tail(floppy->drive, pc); | |
1261 | } | |
1262 | ||
1263 | if (cmd == CDROMEJECT) { | |
1264 | idefloppy_create_start_stop_cmd(pc, 2); | |
1265 | (void) idefloppy_queue_pc_tail(floppy->drive, pc); | |
1266 | } | |
1267 | ||
1268 | return 0; | |
1269 | } | |
1270 | ||
1271 | static int ide_floppy_format_unit(idefloppy_floppy_t *floppy, | |
1272 | int __user *arg) | |
1273 | { | |
1274 | int blocks, length, flags, err = 0; | |
8e555123 | 1275 | struct ide_atapi_pc pc; |
20bf7bda BP |
1276 | |
1277 | if (floppy->openers > 1) { | |
1278 | /* Don't format if someone is using the disk */ | |
6e5fa7b8 | 1279 | floppy->flags &= ~IDEFLOPPY_FLAG_FORMAT_IN_PROGRESS; |
20bf7bda BP |
1280 | return -EBUSY; |
1281 | } | |
1282 | ||
6e5fa7b8 | 1283 | floppy->flags |= IDEFLOPPY_FLAG_FORMAT_IN_PROGRESS; |
20bf7bda BP |
1284 | |
1285 | /* | |
1286 | * Send ATAPI_FORMAT_UNIT to the drive. | |
1287 | * | |
1288 | * Userland gives us the following structure: | |
1289 | * | |
1290 | * struct idefloppy_format_command { | |
1291 | * int nblocks; | |
1292 | * int blocksize; | |
1293 | * int flags; | |
1294 | * } ; | |
1295 | * | |
1296 | * flags is a bitmask, currently, the only defined flag is: | |
1297 | * | |
1298 | * 0x01 - verify media after format. | |
1299 | */ | |
1300 | if (get_user(blocks, arg) || | |
1301 | get_user(length, arg+1) || | |
1302 | get_user(flags, arg+2)) { | |
1303 | err = -EFAULT; | |
1304 | goto out; | |
1305 | } | |
1306 | ||
1307 | (void) idefloppy_get_sfrp_bit(floppy->drive); | |
1308 | idefloppy_create_format_unit_cmd(&pc, blocks, length, flags); | |
1309 | ||
1310 | if (idefloppy_queue_pc_tail(floppy->drive, &pc)) | |
1311 | err = -EIO; | |
1312 | ||
1313 | out: | |
1314 | if (err) | |
6e5fa7b8 | 1315 | floppy->flags &= ~IDEFLOPPY_FLAG_FORMAT_IN_PROGRESS; |
20bf7bda BP |
1316 | return err; |
1317 | } | |
1318 | ||
1319 | ||
1da177e4 LT |
1320 | static int idefloppy_ioctl(struct inode *inode, struct file *file, |
1321 | unsigned int cmd, unsigned long arg) | |
1322 | { | |
1323 | struct block_device *bdev = inode->i_bdev; | |
1324 | struct ide_floppy_obj *floppy = ide_floppy_g(bdev->bd_disk); | |
1325 | ide_drive_t *drive = floppy->drive; | |
8e555123 | 1326 | struct ide_atapi_pc pc; |
1da177e4 | 1327 | void __user *argp = (void __user *)arg; |
07203f64 | 1328 | int err; |
1da177e4 LT |
1329 | |
1330 | switch (cmd) { | |
1331 | case CDROMEJECT: | |
1da177e4 LT |
1332 | /* fall through */ |
1333 | case CDROM_LOCKDOOR: | |
20bf7bda | 1334 | return ide_floppy_lockdoor(floppy, &pc, arg, cmd); |
1da177e4 LT |
1335 | case IDEFLOPPY_IOCTL_FORMAT_SUPPORTED: |
1336 | return 0; | |
1337 | case IDEFLOPPY_IOCTL_FORMAT_GET_CAPACITY: | |
194ec0c0 | 1338 | return ide_floppy_get_format_capacities(drive, argp); |
1da177e4 | 1339 | case IDEFLOPPY_IOCTL_FORMAT_START: |
1da177e4 LT |
1340 | if (!(file->f_mode & 2)) |
1341 | return -EPERM; | |
1342 | ||
20bf7bda | 1343 | return ide_floppy_format_unit(floppy, (int __user *)arg); |
1da177e4 LT |
1344 | case IDEFLOPPY_IOCTL_FORMAT_GET_PROGRESS: |
1345 | return idefloppy_get_format_progress(drive, argp); | |
1346 | } | |
89636af2 BZ |
1347 | |
1348 | /* | |
1349 | * skip SCSI_IOCTL_SEND_COMMAND (deprecated) | |
1350 | * and CDROM_SEND_PACKET (legacy) ioctls | |
1351 | */ | |
1352 | if (cmd != CDROM_SEND_PACKET && cmd != SCSI_IOCTL_SEND_COMMAND) | |
1353 | err = scsi_cmd_ioctl(file, bdev->bd_disk->queue, | |
1354 | bdev->bd_disk, cmd, argp); | |
1355 | else | |
1356 | err = -ENOTTY; | |
1357 | ||
1358 | if (err == -ENOTTY) | |
1359 | err = generic_ide_ioctl(drive, file, bdev, cmd, arg); | |
1360 | ||
1361 | return err; | |
1da177e4 LT |
1362 | } |
1363 | ||
1364 | static int idefloppy_media_changed(struct gendisk *disk) | |
1365 | { | |
1366 | struct ide_floppy_obj *floppy = ide_floppy_g(disk); | |
1367 | ide_drive_t *drive = floppy->drive; | |
6e5fa7b8 | 1368 | int ret; |
1da177e4 LT |
1369 | |
1370 | /* do not scan partitions twice if this is a removable device */ | |
1371 | if (drive->attach) { | |
1372 | drive->attach = 0; | |
1373 | return 0; | |
1374 | } | |
6e5fa7b8 BP |
1375 | ret = !!(floppy->flags & IDEFLOPPY_FLAG_MEDIA_CHANGED); |
1376 | floppy->flags &= ~IDEFLOPPY_FLAG_MEDIA_CHANGED; | |
1377 | return ret; | |
1da177e4 LT |
1378 | } |
1379 | ||
1380 | static int idefloppy_revalidate_disk(struct gendisk *disk) | |
1381 | { | |
1382 | struct ide_floppy_obj *floppy = ide_floppy_g(disk); | |
1383 | set_capacity(disk, idefloppy_capacity(floppy->drive)); | |
1384 | return 0; | |
1385 | } | |
1386 | ||
1387 | static struct block_device_operations idefloppy_ops = { | |
52d3ccf7 PC |
1388 | .owner = THIS_MODULE, |
1389 | .open = idefloppy_open, | |
1390 | .release = idefloppy_release, | |
1391 | .ioctl = idefloppy_ioctl, | |
1392 | .getgeo = idefloppy_getgeo, | |
1393 | .media_changed = idefloppy_media_changed, | |
1394 | .revalidate_disk = idefloppy_revalidate_disk | |
1da177e4 LT |
1395 | }; |
1396 | ||
4031bbe4 | 1397 | static int ide_floppy_probe(ide_drive_t *drive) |
1da177e4 LT |
1398 | { |
1399 | idefloppy_floppy_t *floppy; | |
1400 | struct gendisk *g; | |
1401 | ||
1402 | if (!strstr("ide-floppy", drive->driver_req)) | |
1403 | goto failed; | |
1404 | if (!drive->present) | |
1405 | goto failed; | |
1406 | if (drive->media != ide_floppy) | |
1407 | goto failed; | |
0571c7a4 BP |
1408 | if (!idefloppy_identify_device(drive, drive->id)) { |
1409 | printk(KERN_ERR "ide-floppy: %s: not supported by this version" | |
1410 | " of ide-floppy\n", drive->name); | |
1da177e4 LT |
1411 | goto failed; |
1412 | } | |
0571c7a4 BP |
1413 | floppy = kzalloc(sizeof(idefloppy_floppy_t), GFP_KERNEL); |
1414 | if (!floppy) { | |
1415 | printk(KERN_ERR "ide-floppy: %s: Can't allocate a floppy" | |
1416 | " structure\n", drive->name); | |
1da177e4 LT |
1417 | goto failed; |
1418 | } | |
1419 | ||
1420 | g = alloc_disk(1 << PARTN_BITS); | |
1421 | if (!g) | |
1422 | goto out_free_floppy; | |
1423 | ||
1424 | ide_init_disk(g, drive); | |
1425 | ||
7662d046 | 1426 | ide_proc_register_driver(drive, &idefloppy_driver); |
1da177e4 | 1427 | |
1da177e4 LT |
1428 | kref_init(&floppy->kref); |
1429 | ||
1430 | floppy->drive = drive; | |
1431 | floppy->driver = &idefloppy_driver; | |
1432 | floppy->disk = g; | |
1433 | ||
1434 | g->private_data = &floppy->driver; | |
1435 | ||
1436 | drive->driver_data = floppy; | |
1437 | ||
0571c7a4 | 1438 | idefloppy_setup(drive, floppy); |
8604affd | 1439 | |
1da177e4 LT |
1440 | g->minors = 1 << PARTN_BITS; |
1441 | g->driverfs_dev = &drive->gendev; | |
1da177e4 LT |
1442 | g->flags = drive->removable ? GENHD_FL_REMOVABLE : 0; |
1443 | g->fops = &idefloppy_ops; | |
1444 | drive->attach = 1; | |
1445 | add_disk(g); | |
1446 | return 0; | |
1447 | ||
1da177e4 LT |
1448 | out_free_floppy: |
1449 | kfree(floppy); | |
1450 | failed: | |
8604affd | 1451 | return -ENODEV; |
1da177e4 LT |
1452 | } |
1453 | ||
0571c7a4 | 1454 | static void __exit idefloppy_exit(void) |
1da177e4 | 1455 | { |
8604affd | 1456 | driver_unregister(&idefloppy_driver.gen_driver); |
1da177e4 LT |
1457 | } |
1458 | ||
17514e8a | 1459 | static int __init idefloppy_init(void) |
1da177e4 LT |
1460 | { |
1461 | printk("ide-floppy driver " IDEFLOPPY_VERSION "\n"); | |
8604affd | 1462 | return driver_register(&idefloppy_driver.gen_driver); |
1da177e4 LT |
1463 | } |
1464 | ||
263756ec | 1465 | MODULE_ALIAS("ide:*m-floppy*"); |
1da177e4 LT |
1466 | module_init(idefloppy_init); |
1467 | module_exit(idefloppy_exit); | |
1468 | MODULE_LICENSE("GPL"); | |
0571c7a4 BP |
1469 | MODULE_DESCRIPTION("ATAPI FLOPPY Driver"); |
1470 |