Commit | Line | Data |
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1da177e4 | 1 | /* Driver for Lexar "Jumpshot" Compact Flash reader |
1da177e4 LT |
2 | * |
3 | * jumpshot driver v0.1: | |
4 | * | |
5 | * First release | |
6 | * | |
7 | * Current development and maintenance by: | |
8 | * (c) 2000 Jimmie Mayfield (mayfield+usb@sackheads.org) | |
9 | * | |
10 | * Many thanks to Robert Baruch for the SanDisk SmartMedia reader driver | |
11 | * which I used as a template for this driver. | |
12 | * | |
13 | * Some bugfixes and scatter-gather code by Gregory P. Smith | |
14 | * (greg-usb@electricrain.com) | |
15 | * | |
16 | * Fix for media change by Joerg Schneider (js@joergschneider.com) | |
17 | * | |
18 | * Developed with the assistance of: | |
19 | * | |
20 | * (C) 2002 Alan Stern <stern@rowland.org> | |
21 | * | |
22 | * This program is free software; you can redistribute it and/or modify it | |
23 | * under the terms of the GNU General Public License as published by the | |
24 | * Free Software Foundation; either version 2, or (at your option) any | |
25 | * later version. | |
26 | * | |
27 | * This program is distributed in the hope that it will be useful, but | |
28 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
29 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
30 | * General Public License for more details. | |
31 | * | |
32 | * You should have received a copy of the GNU General Public License along | |
33 | * with this program; if not, write to the Free Software Foundation, Inc., | |
34 | * 675 Mass Ave, Cambridge, MA 02139, USA. | |
35 | */ | |
36 | ||
37 | /* | |
38 | * This driver attempts to support the Lexar Jumpshot USB CompactFlash | |
39 | * reader. Like many other USB CompactFlash readers, the Jumpshot contains | |
40 | * a USB-to-ATA chip. | |
41 | * | |
42 | * This driver supports reading and writing. If you're truly paranoid, | |
43 | * however, you can force the driver into a write-protected state by setting | |
44 | * the WP enable bits in jumpshot_handle_mode_sense. See the comments | |
45 | * in that routine. | |
46 | */ | |
47 | ||
1da177e4 | 48 | #include <linux/errno.h> |
a9fb6d05 | 49 | #include <linux/module.h> |
1da177e4 LT |
50 | #include <linux/slab.h> |
51 | ||
52 | #include <scsi/scsi.h> | |
53 | #include <scsi/scsi_cmnd.h> | |
54 | ||
55 | #include "usb.h" | |
56 | #include "transport.h" | |
57 | #include "protocol.h" | |
58 | #include "debug.h" | |
1da177e4 LT |
59 | |
60 | ||
4246b06a MG |
61 | MODULE_DESCRIPTION("Driver for Lexar \"Jumpshot\" Compact Flash reader"); |
62 | MODULE_AUTHOR("Jimmie Mayfield <mayfield+usb@sackheads.org>"); | |
63 | MODULE_LICENSE("GPL"); | |
64 | ||
a9fb6d05 AS |
65 | /* |
66 | * The table of devices | |
67 | */ | |
68 | #define UNUSUAL_DEV(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax, \ | |
69 | vendorName, productName, useProtocol, useTransport, \ | |
70 | initFunction, flags) \ | |
71 | { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \ | |
f61870ee | 72 | .driver_info = (flags) } |
a9fb6d05 | 73 | |
9d35214b | 74 | static struct usb_device_id jumpshot_usb_ids[] = { |
a9fb6d05 AS |
75 | # include "unusual_jumpshot.h" |
76 | { } /* Terminating entry */ | |
77 | }; | |
78 | MODULE_DEVICE_TABLE(usb, jumpshot_usb_ids); | |
79 | ||
80 | #undef UNUSUAL_DEV | |
81 | ||
82 | /* | |
83 | * The flags table | |
84 | */ | |
85 | #define UNUSUAL_DEV(idVendor, idProduct, bcdDeviceMin, bcdDeviceMax, \ | |
86 | vendor_name, product_name, use_protocol, use_transport, \ | |
87 | init_function, Flags) \ | |
88 | { \ | |
89 | .vendorName = vendor_name, \ | |
90 | .productName = product_name, \ | |
91 | .useProtocol = use_protocol, \ | |
92 | .useTransport = use_transport, \ | |
93 | .initFunction = init_function, \ | |
94 | } | |
95 | ||
96 | static struct us_unusual_dev jumpshot_unusual_dev_list[] = { | |
97 | # include "unusual_jumpshot.h" | |
98 | { } /* Terminating entry */ | |
99 | }; | |
100 | ||
101 | #undef UNUSUAL_DEV | |
102 | ||
103 | ||
104 | struct jumpshot_info { | |
105 | unsigned long sectors; /* total sector count */ | |
106 | unsigned long ssize; /* sector size in bytes */ | |
107 | ||
108 | /* the following aren't used yet */ | |
109 | unsigned char sense_key; | |
110 | unsigned long sense_asc; /* additional sense code */ | |
111 | unsigned long sense_ascq; /* additional sense code qualifier */ | |
112 | }; | |
113 | ||
1da177e4 LT |
114 | static inline int jumpshot_bulk_read(struct us_data *us, |
115 | unsigned char *data, | |
116 | unsigned int len) | |
117 | { | |
118 | if (len == 0) | |
119 | return USB_STOR_XFER_GOOD; | |
120 | ||
191648d0 | 121 | usb_stor_dbg(us, "len = %d\n", len); |
1da177e4 LT |
122 | return usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe, |
123 | data, len, NULL); | |
124 | } | |
125 | ||
126 | ||
127 | static inline int jumpshot_bulk_write(struct us_data *us, | |
128 | unsigned char *data, | |
129 | unsigned int len) | |
130 | { | |
131 | if (len == 0) | |
132 | return USB_STOR_XFER_GOOD; | |
133 | ||
191648d0 | 134 | usb_stor_dbg(us, "len = %d\n", len); |
1da177e4 LT |
135 | return usb_stor_bulk_transfer_buf(us, us->send_bulk_pipe, |
136 | data, len, NULL); | |
137 | } | |
138 | ||
139 | ||
140 | static int jumpshot_get_status(struct us_data *us) | |
141 | { | |
142 | int rc; | |
143 | ||
144 | if (!us) | |
145 | return USB_STOR_TRANSPORT_ERROR; | |
146 | ||
147 | // send the setup | |
148 | rc = usb_stor_ctrl_transfer(us, us->recv_ctrl_pipe, | |
149 | 0, 0xA0, 0, 7, us->iobuf, 1); | |
150 | ||
151 | if (rc != USB_STOR_XFER_GOOD) | |
152 | return USB_STOR_TRANSPORT_ERROR; | |
153 | ||
154 | if (us->iobuf[0] != 0x50) { | |
191648d0 | 155 | usb_stor_dbg(us, "0x%2x\n", us->iobuf[0]); |
1da177e4 LT |
156 | return USB_STOR_TRANSPORT_ERROR; |
157 | } | |
158 | ||
159 | return USB_STOR_TRANSPORT_GOOD; | |
160 | } | |
161 | ||
162 | static int jumpshot_read_data(struct us_data *us, | |
163 | struct jumpshot_info *info, | |
164 | u32 sector, | |
165 | u32 sectors) | |
166 | { | |
167 | unsigned char *command = us->iobuf; | |
168 | unsigned char *buffer; | |
169 | unsigned char thistime; | |
170 | unsigned int totallen, alloclen; | |
171 | int len, result; | |
1f6f31a0 JA |
172 | unsigned int sg_offset = 0; |
173 | struct scatterlist *sg = NULL; | |
1da177e4 LT |
174 | |
175 | // we're working in LBA mode. according to the ATA spec, | |
176 | // we can support up to 28-bit addressing. I don't know if Jumpshot | |
177 | // supports beyond 24-bit addressing. It's kind of hard to test | |
178 | // since it requires > 8GB CF card. | |
179 | ||
180 | if (sector > 0x0FFFFFFF) | |
181 | return USB_STOR_TRANSPORT_ERROR; | |
182 | ||
183 | totallen = sectors * info->ssize; | |
184 | ||
185 | // Since we don't read more than 64 KB at a time, we have to create | |
186 | // a bounce buffer and move the data a piece at a time between the | |
187 | // bounce buffer and the actual transfer buffer. | |
188 | ||
189 | alloclen = min(totallen, 65536u); | |
190 | buffer = kmalloc(alloclen, GFP_NOIO); | |
191 | if (buffer == NULL) | |
192 | return USB_STOR_TRANSPORT_ERROR; | |
193 | ||
194 | do { | |
195 | // loop, never allocate or transfer more than 64k at once | |
196 | // (min(128k, 255*info->ssize) is the real limit) | |
197 | len = min(totallen, alloclen); | |
198 | thistime = (len / info->ssize) & 0xff; | |
199 | ||
200 | command[0] = 0; | |
201 | command[1] = thistime; | |
202 | command[2] = sector & 0xFF; | |
203 | command[3] = (sector >> 8) & 0xFF; | |
204 | command[4] = (sector >> 16) & 0xFF; | |
205 | ||
206 | command[5] = 0xE0 | ((sector >> 24) & 0x0F); | |
207 | command[6] = 0x20; | |
208 | ||
209 | // send the setup + command | |
210 | result = usb_stor_ctrl_transfer(us, us->send_ctrl_pipe, | |
211 | 0, 0x20, 0, 1, command, 7); | |
212 | if (result != USB_STOR_XFER_GOOD) | |
213 | goto leave; | |
214 | ||
215 | // read the result | |
216 | result = jumpshot_bulk_read(us, buffer, len); | |
217 | if (result != USB_STOR_XFER_GOOD) | |
218 | goto leave; | |
219 | ||
191648d0 | 220 | usb_stor_dbg(us, "%d bytes\n", len); |
1da177e4 LT |
221 | |
222 | // Store the data in the transfer buffer | |
223 | usb_stor_access_xfer_buf(buffer, len, us->srb, | |
1f6f31a0 | 224 | &sg, &sg_offset, TO_XFER_BUF); |
1da177e4 LT |
225 | |
226 | sector += thistime; | |
227 | totallen -= len; | |
228 | } while (totallen > 0); | |
229 | ||
230 | kfree(buffer); | |
231 | return USB_STOR_TRANSPORT_GOOD; | |
232 | ||
233 | leave: | |
234 | kfree(buffer); | |
235 | return USB_STOR_TRANSPORT_ERROR; | |
236 | } | |
237 | ||
238 | ||
239 | static int jumpshot_write_data(struct us_data *us, | |
240 | struct jumpshot_info *info, | |
241 | u32 sector, | |
242 | u32 sectors) | |
243 | { | |
244 | unsigned char *command = us->iobuf; | |
245 | unsigned char *buffer; | |
246 | unsigned char thistime; | |
247 | unsigned int totallen, alloclen; | |
248 | int len, result, waitcount; | |
1f6f31a0 JA |
249 | unsigned int sg_offset = 0; |
250 | struct scatterlist *sg = NULL; | |
1da177e4 LT |
251 | |
252 | // we're working in LBA mode. according to the ATA spec, | |
253 | // we can support up to 28-bit addressing. I don't know if Jumpshot | |
254 | // supports beyond 24-bit addressing. It's kind of hard to test | |
255 | // since it requires > 8GB CF card. | |
256 | // | |
257 | if (sector > 0x0FFFFFFF) | |
258 | return USB_STOR_TRANSPORT_ERROR; | |
259 | ||
260 | totallen = sectors * info->ssize; | |
261 | ||
262 | // Since we don't write more than 64 KB at a time, we have to create | |
263 | // a bounce buffer and move the data a piece at a time between the | |
264 | // bounce buffer and the actual transfer buffer. | |
265 | ||
266 | alloclen = min(totallen, 65536u); | |
267 | buffer = kmalloc(alloclen, GFP_NOIO); | |
268 | if (buffer == NULL) | |
269 | return USB_STOR_TRANSPORT_ERROR; | |
270 | ||
271 | do { | |
272 | // loop, never allocate or transfer more than 64k at once | |
273 | // (min(128k, 255*info->ssize) is the real limit) | |
274 | ||
275 | len = min(totallen, alloclen); | |
276 | thistime = (len / info->ssize) & 0xff; | |
277 | ||
278 | // Get the data from the transfer buffer | |
279 | usb_stor_access_xfer_buf(buffer, len, us->srb, | |
1f6f31a0 | 280 | &sg, &sg_offset, FROM_XFER_BUF); |
1da177e4 LT |
281 | |
282 | command[0] = 0; | |
283 | command[1] = thistime; | |
284 | command[2] = sector & 0xFF; | |
285 | command[3] = (sector >> 8) & 0xFF; | |
286 | command[4] = (sector >> 16) & 0xFF; | |
287 | ||
288 | command[5] = 0xE0 | ((sector >> 24) & 0x0F); | |
289 | command[6] = 0x30; | |
290 | ||
291 | // send the setup + command | |
292 | result = usb_stor_ctrl_transfer(us, us->send_ctrl_pipe, | |
293 | 0, 0x20, 0, 1, command, 7); | |
294 | if (result != USB_STOR_XFER_GOOD) | |
295 | goto leave; | |
296 | ||
297 | // send the data | |
298 | result = jumpshot_bulk_write(us, buffer, len); | |
299 | if (result != USB_STOR_XFER_GOOD) | |
300 | goto leave; | |
301 | ||
302 | // read the result. apparently the bulk write can complete | |
303 | // before the jumpshot drive is finished writing. so we loop | |
304 | // here until we get a good return code | |
305 | waitcount = 0; | |
306 | do { | |
307 | result = jumpshot_get_status(us); | |
308 | if (result != USB_STOR_TRANSPORT_GOOD) { | |
309 | // I have not experimented to find the smallest value. | |
310 | // | |
311 | msleep(50); | |
312 | } | |
313 | } while ((result != USB_STOR_TRANSPORT_GOOD) && (waitcount < 10)); | |
314 | ||
315 | if (result != USB_STOR_TRANSPORT_GOOD) | |
191648d0 | 316 | usb_stor_dbg(us, "Gah! Waitcount = 10. Bad write!?\n"); |
1da177e4 LT |
317 | |
318 | sector += thistime; | |
319 | totallen -= len; | |
320 | } while (totallen > 0); | |
321 | ||
322 | kfree(buffer); | |
323 | return result; | |
324 | ||
325 | leave: | |
326 | kfree(buffer); | |
327 | return USB_STOR_TRANSPORT_ERROR; | |
328 | } | |
329 | ||
330 | static int jumpshot_id_device(struct us_data *us, | |
331 | struct jumpshot_info *info) | |
332 | { | |
333 | unsigned char *command = us->iobuf; | |
334 | unsigned char *reply; | |
335 | int rc; | |
336 | ||
64aebe73 | 337 | if (!info) |
1da177e4 LT |
338 | return USB_STOR_TRANSPORT_ERROR; |
339 | ||
340 | command[0] = 0xE0; | |
341 | command[1] = 0xEC; | |
342 | reply = kmalloc(512, GFP_NOIO); | |
343 | if (!reply) | |
344 | return USB_STOR_TRANSPORT_ERROR; | |
345 | ||
346 | // send the setup | |
347 | rc = usb_stor_ctrl_transfer(us, us->send_ctrl_pipe, | |
348 | 0, 0x20, 0, 6, command, 2); | |
349 | ||
350 | if (rc != USB_STOR_XFER_GOOD) { | |
191648d0 | 351 | usb_stor_dbg(us, "Gah! send_control for read_capacity failed\n"); |
1da177e4 LT |
352 | rc = USB_STOR_TRANSPORT_ERROR; |
353 | goto leave; | |
354 | } | |
355 | ||
356 | // read the reply | |
357 | rc = jumpshot_bulk_read(us, reply, 512); | |
358 | if (rc != USB_STOR_XFER_GOOD) { | |
359 | rc = USB_STOR_TRANSPORT_ERROR; | |
360 | goto leave; | |
361 | } | |
362 | ||
363 | info->sectors = ((u32)(reply[117]) << 24) | | |
364 | ((u32)(reply[116]) << 16) | | |
365 | ((u32)(reply[115]) << 8) | | |
366 | ((u32)(reply[114]) ); | |
367 | ||
368 | rc = USB_STOR_TRANSPORT_GOOD; | |
369 | ||
370 | leave: | |
371 | kfree(reply); | |
372 | return rc; | |
373 | } | |
374 | ||
375 | static int jumpshot_handle_mode_sense(struct us_data *us, | |
376 | struct scsi_cmnd * srb, | |
377 | int sense_6) | |
378 | { | |
379 | static unsigned char rw_err_page[12] = { | |
380 | 0x1, 0xA, 0x21, 1, 0, 0, 0, 0, 1, 0, 0, 0 | |
381 | }; | |
382 | static unsigned char cache_page[12] = { | |
383 | 0x8, 0xA, 0x1, 0, 0, 0, 0, 0, 0, 0, 0, 0 | |
384 | }; | |
385 | static unsigned char rbac_page[12] = { | |
386 | 0x1B, 0xA, 0, 0x81, 0, 0, 0, 0, 0, 0, 0, 0 | |
387 | }; | |
388 | static unsigned char timer_page[8] = { | |
389 | 0x1C, 0x6, 0, 0, 0, 0 | |
390 | }; | |
391 | unsigned char pc, page_code; | |
392 | unsigned int i = 0; | |
393 | struct jumpshot_info *info = (struct jumpshot_info *) (us->extra); | |
394 | unsigned char *ptr = us->iobuf; | |
395 | ||
396 | pc = srb->cmnd[2] >> 6; | |
397 | page_code = srb->cmnd[2] & 0x3F; | |
398 | ||
399 | switch (pc) { | |
400 | case 0x0: | |
191648d0 JP |
401 | usb_stor_dbg(us, "Current values\n"); |
402 | break; | |
1da177e4 | 403 | case 0x1: |
191648d0 JP |
404 | usb_stor_dbg(us, "Changeable values\n"); |
405 | break; | |
1da177e4 | 406 | case 0x2: |
191648d0 JP |
407 | usb_stor_dbg(us, "Default values\n"); |
408 | break; | |
1da177e4 | 409 | case 0x3: |
191648d0 JP |
410 | usb_stor_dbg(us, "Saves values\n"); |
411 | break; | |
1da177e4 LT |
412 | } |
413 | ||
414 | memset(ptr, 0, 8); | |
415 | if (sense_6) { | |
416 | ptr[2] = 0x00; // WP enable: 0x80 | |
417 | i = 4; | |
418 | } else { | |
419 | ptr[3] = 0x00; // WP enable: 0x80 | |
420 | i = 8; | |
421 | } | |
422 | ||
423 | switch (page_code) { | |
424 | case 0x0: | |
425 | // vendor-specific mode | |
426 | info->sense_key = 0x05; | |
427 | info->sense_asc = 0x24; | |
428 | info->sense_ascq = 0x00; | |
429 | return USB_STOR_TRANSPORT_FAILED; | |
430 | ||
431 | case 0x1: | |
432 | memcpy(ptr + i, rw_err_page, sizeof(rw_err_page)); | |
433 | i += sizeof(rw_err_page); | |
434 | break; | |
435 | ||
436 | case 0x8: | |
437 | memcpy(ptr + i, cache_page, sizeof(cache_page)); | |
438 | i += sizeof(cache_page); | |
439 | break; | |
440 | ||
441 | case 0x1B: | |
442 | memcpy(ptr + i, rbac_page, sizeof(rbac_page)); | |
443 | i += sizeof(rbac_page); | |
444 | break; | |
445 | ||
446 | case 0x1C: | |
447 | memcpy(ptr + i, timer_page, sizeof(timer_page)); | |
448 | i += sizeof(timer_page); | |
449 | break; | |
450 | ||
451 | case 0x3F: | |
452 | memcpy(ptr + i, timer_page, sizeof(timer_page)); | |
453 | i += sizeof(timer_page); | |
454 | memcpy(ptr + i, rbac_page, sizeof(rbac_page)); | |
455 | i += sizeof(rbac_page); | |
456 | memcpy(ptr + i, cache_page, sizeof(cache_page)); | |
457 | i += sizeof(cache_page); | |
458 | memcpy(ptr + i, rw_err_page, sizeof(rw_err_page)); | |
459 | i += sizeof(rw_err_page); | |
460 | break; | |
461 | } | |
462 | ||
463 | if (sense_6) | |
464 | ptr[0] = i - 1; | |
465 | else | |
466 | ((__be16 *) ptr)[0] = cpu_to_be16(i - 2); | |
467 | usb_stor_set_xfer_buf(ptr, i, srb); | |
468 | ||
469 | return USB_STOR_TRANSPORT_GOOD; | |
470 | } | |
471 | ||
472 | ||
473 | static void jumpshot_info_destructor(void *extra) | |
474 | { | |
475 | // this routine is a placeholder... | |
476 | // currently, we don't allocate any extra blocks so we're okay | |
477 | } | |
478 | ||
479 | ||
480 | ||
481 | // Transport for the Lexar 'Jumpshot' | |
482 | // | |
a9fb6d05 | 483 | static int jumpshot_transport(struct scsi_cmnd *srb, struct us_data *us) |
1da177e4 LT |
484 | { |
485 | struct jumpshot_info *info; | |
486 | int rc; | |
487 | unsigned long block, blocks; | |
488 | unsigned char *ptr = us->iobuf; | |
489 | static unsigned char inquiry_response[8] = { | |
490 | 0x00, 0x80, 0x00, 0x01, 0x1F, 0x00, 0x00, 0x00 | |
491 | }; | |
492 | ||
493 | if (!us->extra) { | |
887c2560 | 494 | us->extra = kzalloc(sizeof(struct jumpshot_info), GFP_NOIO); |
191648d0 | 495 | if (!us->extra) |
1da177e4 | 496 | return USB_STOR_TRANSPORT_ERROR; |
191648d0 | 497 | |
1da177e4 LT |
498 | us->extra_destructor = jumpshot_info_destructor; |
499 | } | |
500 | ||
501 | info = (struct jumpshot_info *) (us->extra); | |
502 | ||
503 | if (srb->cmnd[0] == INQUIRY) { | |
191648d0 | 504 | usb_stor_dbg(us, "INQUIRY - Returning bogus response\n"); |
1da177e4 LT |
505 | memcpy(ptr, inquiry_response, sizeof(inquiry_response)); |
506 | fill_inquiry_response(us, ptr, 36); | |
507 | return USB_STOR_TRANSPORT_GOOD; | |
508 | } | |
509 | ||
510 | if (srb->cmnd[0] == READ_CAPACITY) { | |
511 | info->ssize = 0x200; // hard coded 512 byte sectors as per ATA spec | |
512 | ||
513 | rc = jumpshot_get_status(us); | |
514 | if (rc != USB_STOR_TRANSPORT_GOOD) | |
515 | return rc; | |
516 | ||
517 | rc = jumpshot_id_device(us, info); | |
518 | if (rc != USB_STOR_TRANSPORT_GOOD) | |
519 | return rc; | |
520 | ||
191648d0 JP |
521 | usb_stor_dbg(us, "READ_CAPACITY: %ld sectors, %ld bytes per sector\n", |
522 | info->sectors, info->ssize); | |
1da177e4 LT |
523 | |
524 | // build the reply | |
525 | // | |
526 | ((__be32 *) ptr)[0] = cpu_to_be32(info->sectors - 1); | |
527 | ((__be32 *) ptr)[1] = cpu_to_be32(info->ssize); | |
528 | usb_stor_set_xfer_buf(ptr, 8, srb); | |
529 | ||
530 | return USB_STOR_TRANSPORT_GOOD; | |
531 | } | |
532 | ||
533 | if (srb->cmnd[0] == MODE_SELECT_10) { | |
191648d0 | 534 | usb_stor_dbg(us, "Gah! MODE_SELECT_10\n"); |
1da177e4 LT |
535 | return USB_STOR_TRANSPORT_ERROR; |
536 | } | |
537 | ||
538 | if (srb->cmnd[0] == READ_10) { | |
539 | block = ((u32)(srb->cmnd[2]) << 24) | ((u32)(srb->cmnd[3]) << 16) | | |
540 | ((u32)(srb->cmnd[4]) << 8) | ((u32)(srb->cmnd[5])); | |
541 | ||
542 | blocks = ((u32)(srb->cmnd[7]) << 8) | ((u32)(srb->cmnd[8])); | |
543 | ||
191648d0 JP |
544 | usb_stor_dbg(us, "READ_10: read block 0x%04lx count %ld\n", |
545 | block, blocks); | |
1da177e4 LT |
546 | return jumpshot_read_data(us, info, block, blocks); |
547 | } | |
548 | ||
549 | if (srb->cmnd[0] == READ_12) { | |
550 | // I don't think we'll ever see a READ_12 but support it anyway... | |
551 | // | |
552 | block = ((u32)(srb->cmnd[2]) << 24) | ((u32)(srb->cmnd[3]) << 16) | | |
553 | ((u32)(srb->cmnd[4]) << 8) | ((u32)(srb->cmnd[5])); | |
554 | ||
555 | blocks = ((u32)(srb->cmnd[6]) << 24) | ((u32)(srb->cmnd[7]) << 16) | | |
556 | ((u32)(srb->cmnd[8]) << 8) | ((u32)(srb->cmnd[9])); | |
557 | ||
191648d0 JP |
558 | usb_stor_dbg(us, "READ_12: read block 0x%04lx count %ld\n", |
559 | block, blocks); | |
1da177e4 LT |
560 | return jumpshot_read_data(us, info, block, blocks); |
561 | } | |
562 | ||
563 | if (srb->cmnd[0] == WRITE_10) { | |
564 | block = ((u32)(srb->cmnd[2]) << 24) | ((u32)(srb->cmnd[3]) << 16) | | |
565 | ((u32)(srb->cmnd[4]) << 8) | ((u32)(srb->cmnd[5])); | |
566 | ||
567 | blocks = ((u32)(srb->cmnd[7]) << 8) | ((u32)(srb->cmnd[8])); | |
568 | ||
191648d0 JP |
569 | usb_stor_dbg(us, "WRITE_10: write block 0x%04lx count %ld\n", |
570 | block, blocks); | |
1da177e4 LT |
571 | return jumpshot_write_data(us, info, block, blocks); |
572 | } | |
573 | ||
574 | if (srb->cmnd[0] == WRITE_12) { | |
575 | // I don't think we'll ever see a WRITE_12 but support it anyway... | |
576 | // | |
577 | block = ((u32)(srb->cmnd[2]) << 24) | ((u32)(srb->cmnd[3]) << 16) | | |
578 | ((u32)(srb->cmnd[4]) << 8) | ((u32)(srb->cmnd[5])); | |
579 | ||
580 | blocks = ((u32)(srb->cmnd[6]) << 24) | ((u32)(srb->cmnd[7]) << 16) | | |
581 | ((u32)(srb->cmnd[8]) << 8) | ((u32)(srb->cmnd[9])); | |
582 | ||
191648d0 JP |
583 | usb_stor_dbg(us, "WRITE_12: write block 0x%04lx count %ld\n", |
584 | block, blocks); | |
1da177e4 LT |
585 | return jumpshot_write_data(us, info, block, blocks); |
586 | } | |
587 | ||
588 | ||
589 | if (srb->cmnd[0] == TEST_UNIT_READY) { | |
191648d0 | 590 | usb_stor_dbg(us, "TEST_UNIT_READY\n"); |
1da177e4 LT |
591 | return jumpshot_get_status(us); |
592 | } | |
593 | ||
594 | if (srb->cmnd[0] == REQUEST_SENSE) { | |
191648d0 | 595 | usb_stor_dbg(us, "REQUEST_SENSE\n"); |
1da177e4 LT |
596 | |
597 | memset(ptr, 0, 18); | |
598 | ptr[0] = 0xF0; | |
599 | ptr[2] = info->sense_key; | |
600 | ptr[7] = 11; | |
601 | ptr[12] = info->sense_asc; | |
602 | ptr[13] = info->sense_ascq; | |
603 | usb_stor_set_xfer_buf(ptr, 18, srb); | |
604 | ||
605 | return USB_STOR_TRANSPORT_GOOD; | |
606 | } | |
607 | ||
608 | if (srb->cmnd[0] == MODE_SENSE) { | |
191648d0 | 609 | usb_stor_dbg(us, "MODE_SENSE_6 detected\n"); |
1da177e4 LT |
610 | return jumpshot_handle_mode_sense(us, srb, 1); |
611 | } | |
612 | ||
613 | if (srb->cmnd[0] == MODE_SENSE_10) { | |
191648d0 | 614 | usb_stor_dbg(us, "MODE_SENSE_10 detected\n"); |
1da177e4 LT |
615 | return jumpshot_handle_mode_sense(us, srb, 0); |
616 | } | |
617 | ||
618 | if (srb->cmnd[0] == ALLOW_MEDIUM_REMOVAL) { | |
619 | // sure. whatever. not like we can stop the user from popping | |
620 | // the media out of the device (no locking doors, etc) | |
621 | // | |
622 | return USB_STOR_TRANSPORT_GOOD; | |
623 | } | |
624 | ||
625 | if (srb->cmnd[0] == START_STOP) { | |
626 | /* this is used by sd.c'check_scsidisk_media_change to detect | |
627 | media change */ | |
191648d0 | 628 | usb_stor_dbg(us, "START_STOP\n"); |
1da177e4 LT |
629 | /* the first jumpshot_id_device after a media change returns |
630 | an error (determined experimentally) */ | |
631 | rc = jumpshot_id_device(us, info); | |
632 | if (rc == USB_STOR_TRANSPORT_GOOD) { | |
633 | info->sense_key = NO_SENSE; | |
634 | srb->result = SUCCESS; | |
635 | } else { | |
636 | info->sense_key = UNIT_ATTENTION; | |
637 | srb->result = SAM_STAT_CHECK_CONDITION; | |
638 | } | |
639 | return rc; | |
640 | } | |
641 | ||
191648d0 JP |
642 | usb_stor_dbg(us, "Gah! Unknown command: %d (0x%x)\n", |
643 | srb->cmnd[0], srb->cmnd[0]); | |
1da177e4 LT |
644 | info->sense_key = 0x05; |
645 | info->sense_asc = 0x20; | |
646 | info->sense_ascq = 0x00; | |
647 | return USB_STOR_TRANSPORT_FAILED; | |
648 | } | |
a9fb6d05 AS |
649 | |
650 | static int jumpshot_probe(struct usb_interface *intf, | |
651 | const struct usb_device_id *id) | |
652 | { | |
653 | struct us_data *us; | |
654 | int result; | |
655 | ||
656 | result = usb_stor_probe1(&us, intf, id, | |
657 | (id - jumpshot_usb_ids) + jumpshot_unusual_dev_list); | |
658 | if (result) | |
659 | return result; | |
660 | ||
661 | us->transport_name = "Lexar Jumpshot Control/Bulk"; | |
662 | us->transport = jumpshot_transport; | |
663 | us->transport_reset = usb_stor_Bulk_reset; | |
664 | us->max_lun = 1; | |
665 | ||
666 | result = usb_stor_probe2(us); | |
667 | return result; | |
668 | } | |
669 | ||
670 | static struct usb_driver jumpshot_driver = { | |
671 | .name = "ums-jumpshot", | |
672 | .probe = jumpshot_probe, | |
673 | .disconnect = usb_stor_disconnect, | |
674 | .suspend = usb_stor_suspend, | |
675 | .resume = usb_stor_resume, | |
676 | .reset_resume = usb_stor_reset_resume, | |
677 | .pre_reset = usb_stor_pre_reset, | |
678 | .post_reset = usb_stor_post_reset, | |
679 | .id_table = jumpshot_usb_ids, | |
680 | .soft_unbind = 1, | |
e73b2db6 | 681 | .no_dynamic_id = 1, |
a9fb6d05 AS |
682 | }; |
683 | ||
65db4305 | 684 | module_usb_driver(jumpshot_driver); |