Commit | Line | Data |
---|---|---|
f0183a33 FB |
1 | /* |
2 | * Driver for Lexar "Jumpshot" Compact Flash reader | |
1da177e4 LT |
3 | * |
4 | * jumpshot driver v0.1: | |
5 | * | |
6 | * First release | |
7 | * | |
8 | * Current development and maintenance by: | |
9 | * (c) 2000 Jimmie Mayfield (mayfield+usb@sackheads.org) | |
10 | * | |
11 | * Many thanks to Robert Baruch for the SanDisk SmartMedia reader driver | |
12 | * which I used as a template for this driver. | |
13 | * | |
14 | * Some bugfixes and scatter-gather code by Gregory P. Smith | |
15 | * (greg-usb@electricrain.com) | |
16 | * | |
17 | * Fix for media change by Joerg Schneider (js@joergschneider.com) | |
18 | * | |
19 | * Developed with the assistance of: | |
20 | * | |
21 | * (C) 2002 Alan Stern <stern@rowland.org> | |
22 | * | |
23 | * This program is free software; you can redistribute it and/or modify it | |
24 | * under the terms of the GNU General Public License as published by the | |
25 | * Free Software Foundation; either version 2, or (at your option) any | |
26 | * later version. | |
27 | * | |
28 | * This program is distributed in the hope that it will be useful, but | |
29 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
30 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
31 | * General Public License for more details. | |
32 | * | |
33 | * You should have received a copy of the GNU General Public License along | |
34 | * with this program; if not, write to the Free Software Foundation, Inc., | |
35 | * 675 Mass Ave, Cambridge, MA 02139, USA. | |
36 | */ | |
37 | ||
38 | /* | |
39 | * This driver attempts to support the Lexar Jumpshot USB CompactFlash | |
40 | * reader. Like many other USB CompactFlash readers, the Jumpshot contains | |
41 | * a USB-to-ATA chip. | |
42 | * | |
43 | * This driver supports reading and writing. If you're truly paranoid, | |
44 | * however, you can force the driver into a write-protected state by setting | |
45 | * the WP enable bits in jumpshot_handle_mode_sense. See the comments | |
46 | * in that routine. | |
47 | */ | |
48 | ||
1da177e4 | 49 | #include <linux/errno.h> |
a9fb6d05 | 50 | #include <linux/module.h> |
1da177e4 LT |
51 | #include <linux/slab.h> |
52 | ||
53 | #include <scsi/scsi.h> | |
54 | #include <scsi/scsi_cmnd.h> | |
55 | ||
56 | #include "usb.h" | |
57 | #include "transport.h" | |
58 | #include "protocol.h" | |
59 | #include "debug.h" | |
aa519be3 | 60 | #include "scsiglue.h" |
1da177e4 | 61 | |
aa519be3 | 62 | #define DRV_NAME "ums-jumpshot" |
1da177e4 | 63 | |
4246b06a MG |
64 | MODULE_DESCRIPTION("Driver for Lexar \"Jumpshot\" Compact Flash reader"); |
65 | MODULE_AUTHOR("Jimmie Mayfield <mayfield+usb@sackheads.org>"); | |
66 | MODULE_LICENSE("GPL"); | |
67 | ||
a9fb6d05 AS |
68 | /* |
69 | * The table of devices | |
70 | */ | |
71 | #define UNUSUAL_DEV(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax, \ | |
72 | vendorName, productName, useProtocol, useTransport, \ | |
73 | initFunction, flags) \ | |
74 | { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \ | |
f61870ee | 75 | .driver_info = (flags) } |
a9fb6d05 | 76 | |
9d35214b | 77 | static struct usb_device_id jumpshot_usb_ids[] = { |
a9fb6d05 AS |
78 | # include "unusual_jumpshot.h" |
79 | { } /* Terminating entry */ | |
80 | }; | |
81 | MODULE_DEVICE_TABLE(usb, jumpshot_usb_ids); | |
82 | ||
83 | #undef UNUSUAL_DEV | |
84 | ||
85 | /* | |
86 | * The flags table | |
87 | */ | |
88 | #define UNUSUAL_DEV(idVendor, idProduct, bcdDeviceMin, bcdDeviceMax, \ | |
89 | vendor_name, product_name, use_protocol, use_transport, \ | |
90 | init_function, Flags) \ | |
91 | { \ | |
92 | .vendorName = vendor_name, \ | |
93 | .productName = product_name, \ | |
94 | .useProtocol = use_protocol, \ | |
95 | .useTransport = use_transport, \ | |
96 | .initFunction = init_function, \ | |
97 | } | |
98 | ||
99 | static struct us_unusual_dev jumpshot_unusual_dev_list[] = { | |
100 | # include "unusual_jumpshot.h" | |
101 | { } /* Terminating entry */ | |
102 | }; | |
103 | ||
104 | #undef UNUSUAL_DEV | |
105 | ||
106 | ||
107 | struct jumpshot_info { | |
108 | unsigned long sectors; /* total sector count */ | |
109 | unsigned long ssize; /* sector size in bytes */ | |
110 | ||
111 | /* the following aren't used yet */ | |
112 | unsigned char sense_key; | |
113 | unsigned long sense_asc; /* additional sense code */ | |
114 | unsigned long sense_ascq; /* additional sense code qualifier */ | |
115 | }; | |
116 | ||
1da177e4 LT |
117 | static inline int jumpshot_bulk_read(struct us_data *us, |
118 | unsigned char *data, | |
119 | unsigned int len) | |
120 | { | |
121 | if (len == 0) | |
122 | return USB_STOR_XFER_GOOD; | |
123 | ||
191648d0 | 124 | usb_stor_dbg(us, "len = %d\n", len); |
1da177e4 LT |
125 | return usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe, |
126 | data, len, NULL); | |
127 | } | |
128 | ||
129 | ||
130 | static inline int jumpshot_bulk_write(struct us_data *us, | |
131 | unsigned char *data, | |
132 | unsigned int len) | |
133 | { | |
134 | if (len == 0) | |
135 | return USB_STOR_XFER_GOOD; | |
136 | ||
191648d0 | 137 | usb_stor_dbg(us, "len = %d\n", len); |
1da177e4 LT |
138 | return usb_stor_bulk_transfer_buf(us, us->send_bulk_pipe, |
139 | data, len, NULL); | |
140 | } | |
141 | ||
142 | ||
143 | static int jumpshot_get_status(struct us_data *us) | |
144 | { | |
145 | int rc; | |
146 | ||
147 | if (!us) | |
148 | return USB_STOR_TRANSPORT_ERROR; | |
149 | ||
150 | // send the setup | |
151 | rc = usb_stor_ctrl_transfer(us, us->recv_ctrl_pipe, | |
152 | 0, 0xA0, 0, 7, us->iobuf, 1); | |
153 | ||
154 | if (rc != USB_STOR_XFER_GOOD) | |
155 | return USB_STOR_TRANSPORT_ERROR; | |
156 | ||
157 | if (us->iobuf[0] != 0x50) { | |
191648d0 | 158 | usb_stor_dbg(us, "0x%2x\n", us->iobuf[0]); |
1da177e4 LT |
159 | return USB_STOR_TRANSPORT_ERROR; |
160 | } | |
161 | ||
162 | return USB_STOR_TRANSPORT_GOOD; | |
163 | } | |
164 | ||
165 | static int jumpshot_read_data(struct us_data *us, | |
166 | struct jumpshot_info *info, | |
167 | u32 sector, | |
168 | u32 sectors) | |
169 | { | |
170 | unsigned char *command = us->iobuf; | |
171 | unsigned char *buffer; | |
172 | unsigned char thistime; | |
173 | unsigned int totallen, alloclen; | |
174 | int len, result; | |
1f6f31a0 JA |
175 | unsigned int sg_offset = 0; |
176 | struct scatterlist *sg = NULL; | |
1da177e4 LT |
177 | |
178 | // we're working in LBA mode. according to the ATA spec, | |
179 | // we can support up to 28-bit addressing. I don't know if Jumpshot | |
180 | // supports beyond 24-bit addressing. It's kind of hard to test | |
181 | // since it requires > 8GB CF card. | |
182 | ||
183 | if (sector > 0x0FFFFFFF) | |
184 | return USB_STOR_TRANSPORT_ERROR; | |
185 | ||
186 | totallen = sectors * info->ssize; | |
187 | ||
188 | // Since we don't read more than 64 KB at a time, we have to create | |
189 | // a bounce buffer and move the data a piece at a time between the | |
190 | // bounce buffer and the actual transfer buffer. | |
191 | ||
192 | alloclen = min(totallen, 65536u); | |
193 | buffer = kmalloc(alloclen, GFP_NOIO); | |
194 | if (buffer == NULL) | |
195 | return USB_STOR_TRANSPORT_ERROR; | |
196 | ||
197 | do { | |
198 | // loop, never allocate or transfer more than 64k at once | |
199 | // (min(128k, 255*info->ssize) is the real limit) | |
200 | len = min(totallen, alloclen); | |
201 | thistime = (len / info->ssize) & 0xff; | |
202 | ||
203 | command[0] = 0; | |
204 | command[1] = thistime; | |
205 | command[2] = sector & 0xFF; | |
206 | command[3] = (sector >> 8) & 0xFF; | |
207 | command[4] = (sector >> 16) & 0xFF; | |
208 | ||
209 | command[5] = 0xE0 | ((sector >> 24) & 0x0F); | |
210 | command[6] = 0x20; | |
211 | ||
212 | // send the setup + command | |
213 | result = usb_stor_ctrl_transfer(us, us->send_ctrl_pipe, | |
214 | 0, 0x20, 0, 1, command, 7); | |
215 | if (result != USB_STOR_XFER_GOOD) | |
216 | goto leave; | |
217 | ||
218 | // read the result | |
219 | result = jumpshot_bulk_read(us, buffer, len); | |
220 | if (result != USB_STOR_XFER_GOOD) | |
221 | goto leave; | |
222 | ||
191648d0 | 223 | usb_stor_dbg(us, "%d bytes\n", len); |
1da177e4 LT |
224 | |
225 | // Store the data in the transfer buffer | |
226 | usb_stor_access_xfer_buf(buffer, len, us->srb, | |
1f6f31a0 | 227 | &sg, &sg_offset, TO_XFER_BUF); |
1da177e4 LT |
228 | |
229 | sector += thistime; | |
230 | totallen -= len; | |
231 | } while (totallen > 0); | |
232 | ||
233 | kfree(buffer); | |
234 | return USB_STOR_TRANSPORT_GOOD; | |
235 | ||
236 | leave: | |
237 | kfree(buffer); | |
238 | return USB_STOR_TRANSPORT_ERROR; | |
239 | } | |
240 | ||
241 | ||
242 | static int jumpshot_write_data(struct us_data *us, | |
243 | struct jumpshot_info *info, | |
244 | u32 sector, | |
245 | u32 sectors) | |
246 | { | |
247 | unsigned char *command = us->iobuf; | |
248 | unsigned char *buffer; | |
249 | unsigned char thistime; | |
250 | unsigned int totallen, alloclen; | |
251 | int len, result, waitcount; | |
1f6f31a0 JA |
252 | unsigned int sg_offset = 0; |
253 | struct scatterlist *sg = NULL; | |
1da177e4 LT |
254 | |
255 | // we're working in LBA mode. according to the ATA spec, | |
256 | // we can support up to 28-bit addressing. I don't know if Jumpshot | |
257 | // supports beyond 24-bit addressing. It's kind of hard to test | |
258 | // since it requires > 8GB CF card. | |
259 | // | |
260 | if (sector > 0x0FFFFFFF) | |
261 | return USB_STOR_TRANSPORT_ERROR; | |
262 | ||
263 | totallen = sectors * info->ssize; | |
264 | ||
265 | // Since we don't write more than 64 KB at a time, we have to create | |
266 | // a bounce buffer and move the data a piece at a time between the | |
267 | // bounce buffer and the actual transfer buffer. | |
268 | ||
269 | alloclen = min(totallen, 65536u); | |
270 | buffer = kmalloc(alloclen, GFP_NOIO); | |
271 | if (buffer == NULL) | |
272 | return USB_STOR_TRANSPORT_ERROR; | |
273 | ||
274 | do { | |
275 | // loop, never allocate or transfer more than 64k at once | |
276 | // (min(128k, 255*info->ssize) is the real limit) | |
277 | ||
278 | len = min(totallen, alloclen); | |
279 | thistime = (len / info->ssize) & 0xff; | |
280 | ||
281 | // Get the data from the transfer buffer | |
282 | usb_stor_access_xfer_buf(buffer, len, us->srb, | |
1f6f31a0 | 283 | &sg, &sg_offset, FROM_XFER_BUF); |
1da177e4 LT |
284 | |
285 | command[0] = 0; | |
286 | command[1] = thistime; | |
287 | command[2] = sector & 0xFF; | |
288 | command[3] = (sector >> 8) & 0xFF; | |
289 | command[4] = (sector >> 16) & 0xFF; | |
290 | ||
291 | command[5] = 0xE0 | ((sector >> 24) & 0x0F); | |
292 | command[6] = 0x30; | |
293 | ||
294 | // send the setup + command | |
295 | result = usb_stor_ctrl_transfer(us, us->send_ctrl_pipe, | |
296 | 0, 0x20, 0, 1, command, 7); | |
297 | if (result != USB_STOR_XFER_GOOD) | |
298 | goto leave; | |
299 | ||
300 | // send the data | |
301 | result = jumpshot_bulk_write(us, buffer, len); | |
302 | if (result != USB_STOR_XFER_GOOD) | |
303 | goto leave; | |
304 | ||
305 | // read the result. apparently the bulk write can complete | |
306 | // before the jumpshot drive is finished writing. so we loop | |
307 | // here until we get a good return code | |
308 | waitcount = 0; | |
309 | do { | |
310 | result = jumpshot_get_status(us); | |
311 | if (result != USB_STOR_TRANSPORT_GOOD) { | |
312 | // I have not experimented to find the smallest value. | |
313 | // | |
314 | msleep(50); | |
315 | } | |
316 | } while ((result != USB_STOR_TRANSPORT_GOOD) && (waitcount < 10)); | |
317 | ||
318 | if (result != USB_STOR_TRANSPORT_GOOD) | |
191648d0 | 319 | usb_stor_dbg(us, "Gah! Waitcount = 10. Bad write!?\n"); |
1da177e4 LT |
320 | |
321 | sector += thistime; | |
322 | totallen -= len; | |
323 | } while (totallen > 0); | |
324 | ||
325 | kfree(buffer); | |
326 | return result; | |
327 | ||
328 | leave: | |
329 | kfree(buffer); | |
330 | return USB_STOR_TRANSPORT_ERROR; | |
331 | } | |
332 | ||
333 | static int jumpshot_id_device(struct us_data *us, | |
334 | struct jumpshot_info *info) | |
335 | { | |
336 | unsigned char *command = us->iobuf; | |
337 | unsigned char *reply; | |
338 | int rc; | |
339 | ||
64aebe73 | 340 | if (!info) |
1da177e4 LT |
341 | return USB_STOR_TRANSPORT_ERROR; |
342 | ||
343 | command[0] = 0xE0; | |
344 | command[1] = 0xEC; | |
345 | reply = kmalloc(512, GFP_NOIO); | |
346 | if (!reply) | |
347 | return USB_STOR_TRANSPORT_ERROR; | |
348 | ||
349 | // send the setup | |
350 | rc = usb_stor_ctrl_transfer(us, us->send_ctrl_pipe, | |
351 | 0, 0x20, 0, 6, command, 2); | |
352 | ||
353 | if (rc != USB_STOR_XFER_GOOD) { | |
191648d0 | 354 | usb_stor_dbg(us, "Gah! send_control for read_capacity failed\n"); |
1da177e4 LT |
355 | rc = USB_STOR_TRANSPORT_ERROR; |
356 | goto leave; | |
357 | } | |
358 | ||
359 | // read the reply | |
360 | rc = jumpshot_bulk_read(us, reply, 512); | |
361 | if (rc != USB_STOR_XFER_GOOD) { | |
362 | rc = USB_STOR_TRANSPORT_ERROR; | |
363 | goto leave; | |
364 | } | |
365 | ||
366 | info->sectors = ((u32)(reply[117]) << 24) | | |
367 | ((u32)(reply[116]) << 16) | | |
368 | ((u32)(reply[115]) << 8) | | |
369 | ((u32)(reply[114]) ); | |
370 | ||
371 | rc = USB_STOR_TRANSPORT_GOOD; | |
372 | ||
373 | leave: | |
374 | kfree(reply); | |
375 | return rc; | |
376 | } | |
377 | ||
378 | static int jumpshot_handle_mode_sense(struct us_data *us, | |
379 | struct scsi_cmnd * srb, | |
380 | int sense_6) | |
381 | { | |
382 | static unsigned char rw_err_page[12] = { | |
383 | 0x1, 0xA, 0x21, 1, 0, 0, 0, 0, 1, 0, 0, 0 | |
384 | }; | |
385 | static unsigned char cache_page[12] = { | |
386 | 0x8, 0xA, 0x1, 0, 0, 0, 0, 0, 0, 0, 0, 0 | |
387 | }; | |
388 | static unsigned char rbac_page[12] = { | |
389 | 0x1B, 0xA, 0, 0x81, 0, 0, 0, 0, 0, 0, 0, 0 | |
390 | }; | |
391 | static unsigned char timer_page[8] = { | |
392 | 0x1C, 0x6, 0, 0, 0, 0 | |
393 | }; | |
394 | unsigned char pc, page_code; | |
395 | unsigned int i = 0; | |
396 | struct jumpshot_info *info = (struct jumpshot_info *) (us->extra); | |
397 | unsigned char *ptr = us->iobuf; | |
398 | ||
399 | pc = srb->cmnd[2] >> 6; | |
400 | page_code = srb->cmnd[2] & 0x3F; | |
401 | ||
402 | switch (pc) { | |
403 | case 0x0: | |
191648d0 JP |
404 | usb_stor_dbg(us, "Current values\n"); |
405 | break; | |
1da177e4 | 406 | case 0x1: |
191648d0 JP |
407 | usb_stor_dbg(us, "Changeable values\n"); |
408 | break; | |
1da177e4 | 409 | case 0x2: |
191648d0 JP |
410 | usb_stor_dbg(us, "Default values\n"); |
411 | break; | |
1da177e4 | 412 | case 0x3: |
191648d0 JP |
413 | usb_stor_dbg(us, "Saves values\n"); |
414 | break; | |
1da177e4 LT |
415 | } |
416 | ||
417 | memset(ptr, 0, 8); | |
418 | if (sense_6) { | |
419 | ptr[2] = 0x00; // WP enable: 0x80 | |
420 | i = 4; | |
421 | } else { | |
422 | ptr[3] = 0x00; // WP enable: 0x80 | |
423 | i = 8; | |
424 | } | |
425 | ||
426 | switch (page_code) { | |
427 | case 0x0: | |
428 | // vendor-specific mode | |
429 | info->sense_key = 0x05; | |
430 | info->sense_asc = 0x24; | |
431 | info->sense_ascq = 0x00; | |
432 | return USB_STOR_TRANSPORT_FAILED; | |
433 | ||
434 | case 0x1: | |
435 | memcpy(ptr + i, rw_err_page, sizeof(rw_err_page)); | |
436 | i += sizeof(rw_err_page); | |
437 | break; | |
438 | ||
439 | case 0x8: | |
440 | memcpy(ptr + i, cache_page, sizeof(cache_page)); | |
441 | i += sizeof(cache_page); | |
442 | break; | |
443 | ||
444 | case 0x1B: | |
445 | memcpy(ptr + i, rbac_page, sizeof(rbac_page)); | |
446 | i += sizeof(rbac_page); | |
447 | break; | |
448 | ||
449 | case 0x1C: | |
450 | memcpy(ptr + i, timer_page, sizeof(timer_page)); | |
451 | i += sizeof(timer_page); | |
452 | break; | |
453 | ||
454 | case 0x3F: | |
455 | memcpy(ptr + i, timer_page, sizeof(timer_page)); | |
456 | i += sizeof(timer_page); | |
457 | memcpy(ptr + i, rbac_page, sizeof(rbac_page)); | |
458 | i += sizeof(rbac_page); | |
459 | memcpy(ptr + i, cache_page, sizeof(cache_page)); | |
460 | i += sizeof(cache_page); | |
461 | memcpy(ptr + i, rw_err_page, sizeof(rw_err_page)); | |
462 | i += sizeof(rw_err_page); | |
463 | break; | |
464 | } | |
465 | ||
466 | if (sense_6) | |
467 | ptr[0] = i - 1; | |
468 | else | |
469 | ((__be16 *) ptr)[0] = cpu_to_be16(i - 2); | |
470 | usb_stor_set_xfer_buf(ptr, i, srb); | |
471 | ||
472 | return USB_STOR_TRANSPORT_GOOD; | |
473 | } | |
474 | ||
475 | ||
476 | static void jumpshot_info_destructor(void *extra) | |
477 | { | |
478 | // this routine is a placeholder... | |
479 | // currently, we don't allocate any extra blocks so we're okay | |
480 | } | |
481 | ||
482 | ||
483 | ||
484 | // Transport for the Lexar 'Jumpshot' | |
485 | // | |
a9fb6d05 | 486 | static int jumpshot_transport(struct scsi_cmnd *srb, struct us_data *us) |
1da177e4 LT |
487 | { |
488 | struct jumpshot_info *info; | |
489 | int rc; | |
490 | unsigned long block, blocks; | |
491 | unsigned char *ptr = us->iobuf; | |
492 | static unsigned char inquiry_response[8] = { | |
493 | 0x00, 0x80, 0x00, 0x01, 0x1F, 0x00, 0x00, 0x00 | |
494 | }; | |
495 | ||
496 | if (!us->extra) { | |
887c2560 | 497 | us->extra = kzalloc(sizeof(struct jumpshot_info), GFP_NOIO); |
191648d0 | 498 | if (!us->extra) |
1da177e4 | 499 | return USB_STOR_TRANSPORT_ERROR; |
191648d0 | 500 | |
1da177e4 LT |
501 | us->extra_destructor = jumpshot_info_destructor; |
502 | } | |
503 | ||
504 | info = (struct jumpshot_info *) (us->extra); | |
505 | ||
506 | if (srb->cmnd[0] == INQUIRY) { | |
191648d0 | 507 | usb_stor_dbg(us, "INQUIRY - Returning bogus response\n"); |
1da177e4 LT |
508 | memcpy(ptr, inquiry_response, sizeof(inquiry_response)); |
509 | fill_inquiry_response(us, ptr, 36); | |
510 | return USB_STOR_TRANSPORT_GOOD; | |
511 | } | |
512 | ||
513 | if (srb->cmnd[0] == READ_CAPACITY) { | |
514 | info->ssize = 0x200; // hard coded 512 byte sectors as per ATA spec | |
515 | ||
516 | rc = jumpshot_get_status(us); | |
517 | if (rc != USB_STOR_TRANSPORT_GOOD) | |
518 | return rc; | |
519 | ||
520 | rc = jumpshot_id_device(us, info); | |
521 | if (rc != USB_STOR_TRANSPORT_GOOD) | |
522 | return rc; | |
523 | ||
191648d0 JP |
524 | usb_stor_dbg(us, "READ_CAPACITY: %ld sectors, %ld bytes per sector\n", |
525 | info->sectors, info->ssize); | |
1da177e4 LT |
526 | |
527 | // build the reply | |
528 | // | |
529 | ((__be32 *) ptr)[0] = cpu_to_be32(info->sectors - 1); | |
530 | ((__be32 *) ptr)[1] = cpu_to_be32(info->ssize); | |
531 | usb_stor_set_xfer_buf(ptr, 8, srb); | |
532 | ||
533 | return USB_STOR_TRANSPORT_GOOD; | |
534 | } | |
535 | ||
536 | if (srb->cmnd[0] == MODE_SELECT_10) { | |
191648d0 | 537 | usb_stor_dbg(us, "Gah! MODE_SELECT_10\n"); |
1da177e4 LT |
538 | return USB_STOR_TRANSPORT_ERROR; |
539 | } | |
540 | ||
541 | if (srb->cmnd[0] == READ_10) { | |
542 | block = ((u32)(srb->cmnd[2]) << 24) | ((u32)(srb->cmnd[3]) << 16) | | |
543 | ((u32)(srb->cmnd[4]) << 8) | ((u32)(srb->cmnd[5])); | |
544 | ||
545 | blocks = ((u32)(srb->cmnd[7]) << 8) | ((u32)(srb->cmnd[8])); | |
546 | ||
191648d0 JP |
547 | usb_stor_dbg(us, "READ_10: read block 0x%04lx count %ld\n", |
548 | block, blocks); | |
1da177e4 LT |
549 | return jumpshot_read_data(us, info, block, blocks); |
550 | } | |
551 | ||
552 | if (srb->cmnd[0] == READ_12) { | |
553 | // I don't think we'll ever see a READ_12 but support it anyway... | |
554 | // | |
555 | block = ((u32)(srb->cmnd[2]) << 24) | ((u32)(srb->cmnd[3]) << 16) | | |
556 | ((u32)(srb->cmnd[4]) << 8) | ((u32)(srb->cmnd[5])); | |
557 | ||
558 | blocks = ((u32)(srb->cmnd[6]) << 24) | ((u32)(srb->cmnd[7]) << 16) | | |
559 | ((u32)(srb->cmnd[8]) << 8) | ((u32)(srb->cmnd[9])); | |
560 | ||
191648d0 JP |
561 | usb_stor_dbg(us, "READ_12: read block 0x%04lx count %ld\n", |
562 | block, blocks); | |
1da177e4 LT |
563 | return jumpshot_read_data(us, info, block, blocks); |
564 | } | |
565 | ||
566 | if (srb->cmnd[0] == WRITE_10) { | |
567 | block = ((u32)(srb->cmnd[2]) << 24) | ((u32)(srb->cmnd[3]) << 16) | | |
568 | ((u32)(srb->cmnd[4]) << 8) | ((u32)(srb->cmnd[5])); | |
569 | ||
570 | blocks = ((u32)(srb->cmnd[7]) << 8) | ((u32)(srb->cmnd[8])); | |
571 | ||
191648d0 JP |
572 | usb_stor_dbg(us, "WRITE_10: write block 0x%04lx count %ld\n", |
573 | block, blocks); | |
1da177e4 LT |
574 | return jumpshot_write_data(us, info, block, blocks); |
575 | } | |
576 | ||
577 | if (srb->cmnd[0] == WRITE_12) { | |
578 | // I don't think we'll ever see a WRITE_12 but support it anyway... | |
579 | // | |
580 | block = ((u32)(srb->cmnd[2]) << 24) | ((u32)(srb->cmnd[3]) << 16) | | |
581 | ((u32)(srb->cmnd[4]) << 8) | ((u32)(srb->cmnd[5])); | |
582 | ||
583 | blocks = ((u32)(srb->cmnd[6]) << 24) | ((u32)(srb->cmnd[7]) << 16) | | |
584 | ((u32)(srb->cmnd[8]) << 8) | ((u32)(srb->cmnd[9])); | |
585 | ||
191648d0 JP |
586 | usb_stor_dbg(us, "WRITE_12: write block 0x%04lx count %ld\n", |
587 | block, blocks); | |
1da177e4 LT |
588 | return jumpshot_write_data(us, info, block, blocks); |
589 | } | |
590 | ||
591 | ||
592 | if (srb->cmnd[0] == TEST_UNIT_READY) { | |
191648d0 | 593 | usb_stor_dbg(us, "TEST_UNIT_READY\n"); |
1da177e4 LT |
594 | return jumpshot_get_status(us); |
595 | } | |
596 | ||
597 | if (srb->cmnd[0] == REQUEST_SENSE) { | |
191648d0 | 598 | usb_stor_dbg(us, "REQUEST_SENSE\n"); |
1da177e4 LT |
599 | |
600 | memset(ptr, 0, 18); | |
601 | ptr[0] = 0xF0; | |
602 | ptr[2] = info->sense_key; | |
603 | ptr[7] = 11; | |
604 | ptr[12] = info->sense_asc; | |
605 | ptr[13] = info->sense_ascq; | |
606 | usb_stor_set_xfer_buf(ptr, 18, srb); | |
607 | ||
608 | return USB_STOR_TRANSPORT_GOOD; | |
609 | } | |
610 | ||
611 | if (srb->cmnd[0] == MODE_SENSE) { | |
191648d0 | 612 | usb_stor_dbg(us, "MODE_SENSE_6 detected\n"); |
1da177e4 LT |
613 | return jumpshot_handle_mode_sense(us, srb, 1); |
614 | } | |
615 | ||
616 | if (srb->cmnd[0] == MODE_SENSE_10) { | |
191648d0 | 617 | usb_stor_dbg(us, "MODE_SENSE_10 detected\n"); |
1da177e4 LT |
618 | return jumpshot_handle_mode_sense(us, srb, 0); |
619 | } | |
620 | ||
621 | if (srb->cmnd[0] == ALLOW_MEDIUM_REMOVAL) { | |
f0183a33 FB |
622 | /* |
623 | * sure. whatever. not like we can stop the user from popping | |
624 | * the media out of the device (no locking doors, etc) | |
625 | */ | |
1da177e4 LT |
626 | return USB_STOR_TRANSPORT_GOOD; |
627 | } | |
628 | ||
629 | if (srb->cmnd[0] == START_STOP) { | |
f0183a33 FB |
630 | /* |
631 | * this is used by sd.c'check_scsidisk_media_change to detect | |
632 | * media change | |
633 | */ | |
191648d0 | 634 | usb_stor_dbg(us, "START_STOP\n"); |
f0183a33 FB |
635 | /* |
636 | * the first jumpshot_id_device after a media change returns | |
637 | * an error (determined experimentally) | |
638 | */ | |
1da177e4 LT |
639 | rc = jumpshot_id_device(us, info); |
640 | if (rc == USB_STOR_TRANSPORT_GOOD) { | |
641 | info->sense_key = NO_SENSE; | |
642 | srb->result = SUCCESS; | |
643 | } else { | |
644 | info->sense_key = UNIT_ATTENTION; | |
645 | srb->result = SAM_STAT_CHECK_CONDITION; | |
646 | } | |
647 | return rc; | |
648 | } | |
649 | ||
191648d0 JP |
650 | usb_stor_dbg(us, "Gah! Unknown command: %d (0x%x)\n", |
651 | srb->cmnd[0], srb->cmnd[0]); | |
1da177e4 LT |
652 | info->sense_key = 0x05; |
653 | info->sense_asc = 0x20; | |
654 | info->sense_ascq = 0x00; | |
655 | return USB_STOR_TRANSPORT_FAILED; | |
656 | } | |
a9fb6d05 | 657 | |
aa519be3 AM |
658 | static struct scsi_host_template jumpshot_host_template; |
659 | ||
a9fb6d05 AS |
660 | static int jumpshot_probe(struct usb_interface *intf, |
661 | const struct usb_device_id *id) | |
662 | { | |
663 | struct us_data *us; | |
664 | int result; | |
665 | ||
666 | result = usb_stor_probe1(&us, intf, id, | |
aa519be3 AM |
667 | (id - jumpshot_usb_ids) + jumpshot_unusual_dev_list, |
668 | &jumpshot_host_template); | |
a9fb6d05 AS |
669 | if (result) |
670 | return result; | |
671 | ||
672 | us->transport_name = "Lexar Jumpshot Control/Bulk"; | |
673 | us->transport = jumpshot_transport; | |
674 | us->transport_reset = usb_stor_Bulk_reset; | |
675 | us->max_lun = 1; | |
676 | ||
677 | result = usb_stor_probe2(us); | |
678 | return result; | |
679 | } | |
680 | ||
681 | static struct usb_driver jumpshot_driver = { | |
aa519be3 | 682 | .name = DRV_NAME, |
a9fb6d05 AS |
683 | .probe = jumpshot_probe, |
684 | .disconnect = usb_stor_disconnect, | |
685 | .suspend = usb_stor_suspend, | |
686 | .resume = usb_stor_resume, | |
687 | .reset_resume = usb_stor_reset_resume, | |
688 | .pre_reset = usb_stor_pre_reset, | |
689 | .post_reset = usb_stor_post_reset, | |
690 | .id_table = jumpshot_usb_ids, | |
691 | .soft_unbind = 1, | |
e73b2db6 | 692 | .no_dynamic_id = 1, |
a9fb6d05 AS |
693 | }; |
694 | ||
aa519be3 | 695 | module_usb_stor_driver(jumpshot_driver, jumpshot_host_template, DRV_NAME); |