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5fd54ace | 1 | // SPDX-License-Identifier: GPL-2.0+ |
f0183a33 FB |
2 | /* |
3 | * Driver for Lexar "Jumpshot" Compact Flash reader | |
1da177e4 LT |
4 | * |
5 | * jumpshot driver v0.1: | |
6 | * | |
7 | * First release | |
8 | * | |
9 | * Current development and maintenance by: | |
10 | * (c) 2000 Jimmie Mayfield (mayfield+usb@sackheads.org) | |
11 | * | |
12 | * Many thanks to Robert Baruch for the SanDisk SmartMedia reader driver | |
13 | * which I used as a template for this driver. | |
14 | * | |
15 | * Some bugfixes and scatter-gather code by Gregory P. Smith | |
16 | * (greg-usb@electricrain.com) | |
17 | * | |
18 | * Fix for media change by Joerg Schneider (js@joergschneider.com) | |
19 | * | |
20 | * Developed with the assistance of: | |
21 | * | |
22 | * (C) 2002 Alan Stern <stern@rowland.org> | |
1da177e4 LT |
23 | */ |
24 | ||
25 | /* | |
26 | * This driver attempts to support the Lexar Jumpshot USB CompactFlash | |
27 | * reader. Like many other USB CompactFlash readers, the Jumpshot contains | |
28 | * a USB-to-ATA chip. | |
29 | * | |
30 | * This driver supports reading and writing. If you're truly paranoid, | |
31 | * however, you can force the driver into a write-protected state by setting | |
32 | * the WP enable bits in jumpshot_handle_mode_sense. See the comments | |
33 | * in that routine. | |
34 | */ | |
35 | ||
1da177e4 | 36 | #include <linux/errno.h> |
a9fb6d05 | 37 | #include <linux/module.h> |
1da177e4 LT |
38 | #include <linux/slab.h> |
39 | ||
40 | #include <scsi/scsi.h> | |
41 | #include <scsi/scsi_cmnd.h> | |
42 | ||
43 | #include "usb.h" | |
44 | #include "transport.h" | |
45 | #include "protocol.h" | |
46 | #include "debug.h" | |
aa519be3 | 47 | #include "scsiglue.h" |
1da177e4 | 48 | |
aa519be3 | 49 | #define DRV_NAME "ums-jumpshot" |
1da177e4 | 50 | |
4246b06a MG |
51 | MODULE_DESCRIPTION("Driver for Lexar \"Jumpshot\" Compact Flash reader"); |
52 | MODULE_AUTHOR("Jimmie Mayfield <mayfield+usb@sackheads.org>"); | |
53 | MODULE_LICENSE("GPL"); | |
54 | ||
a9fb6d05 AS |
55 | /* |
56 | * The table of devices | |
57 | */ | |
58 | #define UNUSUAL_DEV(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax, \ | |
59 | vendorName, productName, useProtocol, useTransport, \ | |
60 | initFunction, flags) \ | |
61 | { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \ | |
f61870ee | 62 | .driver_info = (flags) } |
a9fb6d05 | 63 | |
9d35214b | 64 | static struct usb_device_id jumpshot_usb_ids[] = { |
a9fb6d05 AS |
65 | # include "unusual_jumpshot.h" |
66 | { } /* Terminating entry */ | |
67 | }; | |
68 | MODULE_DEVICE_TABLE(usb, jumpshot_usb_ids); | |
69 | ||
70 | #undef UNUSUAL_DEV | |
71 | ||
72 | /* | |
73 | * The flags table | |
74 | */ | |
75 | #define UNUSUAL_DEV(idVendor, idProduct, bcdDeviceMin, bcdDeviceMax, \ | |
76 | vendor_name, product_name, use_protocol, use_transport, \ | |
77 | init_function, Flags) \ | |
78 | { \ | |
79 | .vendorName = vendor_name, \ | |
80 | .productName = product_name, \ | |
81 | .useProtocol = use_protocol, \ | |
82 | .useTransport = use_transport, \ | |
83 | .initFunction = init_function, \ | |
84 | } | |
85 | ||
86 | static struct us_unusual_dev jumpshot_unusual_dev_list[] = { | |
87 | # include "unusual_jumpshot.h" | |
88 | { } /* Terminating entry */ | |
89 | }; | |
90 | ||
91 | #undef UNUSUAL_DEV | |
92 | ||
93 | ||
94 | struct jumpshot_info { | |
95 | unsigned long sectors; /* total sector count */ | |
96 | unsigned long ssize; /* sector size in bytes */ | |
97 | ||
98 | /* the following aren't used yet */ | |
99 | unsigned char sense_key; | |
100 | unsigned long sense_asc; /* additional sense code */ | |
101 | unsigned long sense_ascq; /* additional sense code qualifier */ | |
102 | }; | |
103 | ||
1da177e4 LT |
104 | static inline int jumpshot_bulk_read(struct us_data *us, |
105 | unsigned char *data, | |
106 | unsigned int len) | |
107 | { | |
108 | if (len == 0) | |
109 | return USB_STOR_XFER_GOOD; | |
110 | ||
191648d0 | 111 | usb_stor_dbg(us, "len = %d\n", len); |
1da177e4 LT |
112 | return usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe, |
113 | data, len, NULL); | |
114 | } | |
115 | ||
116 | ||
117 | static inline int jumpshot_bulk_write(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->send_bulk_pipe, |
126 | data, len, NULL); | |
127 | } | |
128 | ||
129 | ||
130 | static int jumpshot_get_status(struct us_data *us) | |
131 | { | |
132 | int rc; | |
133 | ||
134 | if (!us) | |
135 | return USB_STOR_TRANSPORT_ERROR; | |
136 | ||
137 | // send the setup | |
138 | rc = usb_stor_ctrl_transfer(us, us->recv_ctrl_pipe, | |
139 | 0, 0xA0, 0, 7, us->iobuf, 1); | |
140 | ||
141 | if (rc != USB_STOR_XFER_GOOD) | |
142 | return USB_STOR_TRANSPORT_ERROR; | |
143 | ||
144 | if (us->iobuf[0] != 0x50) { | |
191648d0 | 145 | usb_stor_dbg(us, "0x%2x\n", us->iobuf[0]); |
1da177e4 LT |
146 | return USB_STOR_TRANSPORT_ERROR; |
147 | } | |
148 | ||
149 | return USB_STOR_TRANSPORT_GOOD; | |
150 | } | |
151 | ||
152 | static int jumpshot_read_data(struct us_data *us, | |
153 | struct jumpshot_info *info, | |
154 | u32 sector, | |
155 | u32 sectors) | |
156 | { | |
157 | unsigned char *command = us->iobuf; | |
158 | unsigned char *buffer; | |
159 | unsigned char thistime; | |
160 | unsigned int totallen, alloclen; | |
161 | int len, result; | |
1f6f31a0 JA |
162 | unsigned int sg_offset = 0; |
163 | struct scatterlist *sg = NULL; | |
1da177e4 LT |
164 | |
165 | // we're working in LBA mode. according to the ATA spec, | |
166 | // we can support up to 28-bit addressing. I don't know if Jumpshot | |
167 | // supports beyond 24-bit addressing. It's kind of hard to test | |
168 | // since it requires > 8GB CF card. | |
169 | ||
170 | if (sector > 0x0FFFFFFF) | |
171 | return USB_STOR_TRANSPORT_ERROR; | |
172 | ||
173 | totallen = sectors * info->ssize; | |
174 | ||
175 | // Since we don't read more than 64 KB at a time, we have to create | |
176 | // a bounce buffer and move the data a piece at a time between the | |
177 | // bounce buffer and the actual transfer buffer. | |
178 | ||
179 | alloclen = min(totallen, 65536u); | |
180 | buffer = kmalloc(alloclen, GFP_NOIO); | |
181 | if (buffer == NULL) | |
182 | return USB_STOR_TRANSPORT_ERROR; | |
183 | ||
184 | do { | |
185 | // loop, never allocate or transfer more than 64k at once | |
186 | // (min(128k, 255*info->ssize) is the real limit) | |
187 | len = min(totallen, alloclen); | |
188 | thistime = (len / info->ssize) & 0xff; | |
189 | ||
190 | command[0] = 0; | |
191 | command[1] = thistime; | |
192 | command[2] = sector & 0xFF; | |
193 | command[3] = (sector >> 8) & 0xFF; | |
194 | command[4] = (sector >> 16) & 0xFF; | |
195 | ||
196 | command[5] = 0xE0 | ((sector >> 24) & 0x0F); | |
197 | command[6] = 0x20; | |
198 | ||
199 | // send the setup + command | |
200 | result = usb_stor_ctrl_transfer(us, us->send_ctrl_pipe, | |
201 | 0, 0x20, 0, 1, command, 7); | |
202 | if (result != USB_STOR_XFER_GOOD) | |
203 | goto leave; | |
204 | ||
205 | // read the result | |
206 | result = jumpshot_bulk_read(us, buffer, len); | |
207 | if (result != USB_STOR_XFER_GOOD) | |
208 | goto leave; | |
209 | ||
191648d0 | 210 | usb_stor_dbg(us, "%d bytes\n", len); |
1da177e4 LT |
211 | |
212 | // Store the data in the transfer buffer | |
213 | usb_stor_access_xfer_buf(buffer, len, us->srb, | |
1f6f31a0 | 214 | &sg, &sg_offset, TO_XFER_BUF); |
1da177e4 LT |
215 | |
216 | sector += thistime; | |
217 | totallen -= len; | |
218 | } while (totallen > 0); | |
219 | ||
220 | kfree(buffer); | |
221 | return USB_STOR_TRANSPORT_GOOD; | |
222 | ||
223 | leave: | |
224 | kfree(buffer); | |
225 | return USB_STOR_TRANSPORT_ERROR; | |
226 | } | |
227 | ||
228 | ||
229 | static int jumpshot_write_data(struct us_data *us, | |
230 | struct jumpshot_info *info, | |
231 | u32 sector, | |
232 | u32 sectors) | |
233 | { | |
234 | unsigned char *command = us->iobuf; | |
235 | unsigned char *buffer; | |
236 | unsigned char thistime; | |
237 | unsigned int totallen, alloclen; | |
238 | int len, result, waitcount; | |
1f6f31a0 JA |
239 | unsigned int sg_offset = 0; |
240 | struct scatterlist *sg = NULL; | |
1da177e4 LT |
241 | |
242 | // we're working in LBA mode. according to the ATA spec, | |
243 | // we can support up to 28-bit addressing. I don't know if Jumpshot | |
244 | // supports beyond 24-bit addressing. It's kind of hard to test | |
245 | // since it requires > 8GB CF card. | |
246 | // | |
247 | if (sector > 0x0FFFFFFF) | |
248 | return USB_STOR_TRANSPORT_ERROR; | |
249 | ||
250 | totallen = sectors * info->ssize; | |
251 | ||
252 | // Since we don't write more than 64 KB at a time, we have to create | |
253 | // a bounce buffer and move the data a piece at a time between the | |
254 | // bounce buffer and the actual transfer buffer. | |
255 | ||
256 | alloclen = min(totallen, 65536u); | |
257 | buffer = kmalloc(alloclen, GFP_NOIO); | |
258 | if (buffer == NULL) | |
259 | return USB_STOR_TRANSPORT_ERROR; | |
260 | ||
261 | do { | |
262 | // loop, never allocate or transfer more than 64k at once | |
263 | // (min(128k, 255*info->ssize) is the real limit) | |
264 | ||
265 | len = min(totallen, alloclen); | |
266 | thistime = (len / info->ssize) & 0xff; | |
267 | ||
268 | // Get the data from the transfer buffer | |
269 | usb_stor_access_xfer_buf(buffer, len, us->srb, | |
1f6f31a0 | 270 | &sg, &sg_offset, FROM_XFER_BUF); |
1da177e4 LT |
271 | |
272 | command[0] = 0; | |
273 | command[1] = thistime; | |
274 | command[2] = sector & 0xFF; | |
275 | command[3] = (sector >> 8) & 0xFF; | |
276 | command[4] = (sector >> 16) & 0xFF; | |
277 | ||
278 | command[5] = 0xE0 | ((sector >> 24) & 0x0F); | |
279 | command[6] = 0x30; | |
280 | ||
281 | // send the setup + command | |
282 | result = usb_stor_ctrl_transfer(us, us->send_ctrl_pipe, | |
283 | 0, 0x20, 0, 1, command, 7); | |
284 | if (result != USB_STOR_XFER_GOOD) | |
285 | goto leave; | |
286 | ||
287 | // send the data | |
288 | result = jumpshot_bulk_write(us, buffer, len); | |
289 | if (result != USB_STOR_XFER_GOOD) | |
290 | goto leave; | |
291 | ||
292 | // read the result. apparently the bulk write can complete | |
293 | // before the jumpshot drive is finished writing. so we loop | |
294 | // here until we get a good return code | |
295 | waitcount = 0; | |
296 | do { | |
297 | result = jumpshot_get_status(us); | |
298 | if (result != USB_STOR_TRANSPORT_GOOD) { | |
299 | // I have not experimented to find the smallest value. | |
300 | // | |
301 | msleep(50); | |
302 | } | |
303 | } while ((result != USB_STOR_TRANSPORT_GOOD) && (waitcount < 10)); | |
304 | ||
305 | if (result != USB_STOR_TRANSPORT_GOOD) | |
191648d0 | 306 | usb_stor_dbg(us, "Gah! Waitcount = 10. Bad write!?\n"); |
1da177e4 LT |
307 | |
308 | sector += thistime; | |
309 | totallen -= len; | |
310 | } while (totallen > 0); | |
311 | ||
312 | kfree(buffer); | |
313 | return result; | |
314 | ||
315 | leave: | |
316 | kfree(buffer); | |
317 | return USB_STOR_TRANSPORT_ERROR; | |
318 | } | |
319 | ||
320 | static int jumpshot_id_device(struct us_data *us, | |
321 | struct jumpshot_info *info) | |
322 | { | |
323 | unsigned char *command = us->iobuf; | |
324 | unsigned char *reply; | |
325 | int rc; | |
326 | ||
64aebe73 | 327 | if (!info) |
1da177e4 LT |
328 | return USB_STOR_TRANSPORT_ERROR; |
329 | ||
330 | command[0] = 0xE0; | |
331 | command[1] = 0xEC; | |
332 | reply = kmalloc(512, GFP_NOIO); | |
333 | if (!reply) | |
334 | return USB_STOR_TRANSPORT_ERROR; | |
335 | ||
336 | // send the setup | |
337 | rc = usb_stor_ctrl_transfer(us, us->send_ctrl_pipe, | |
338 | 0, 0x20, 0, 6, command, 2); | |
339 | ||
340 | if (rc != USB_STOR_XFER_GOOD) { | |
191648d0 | 341 | usb_stor_dbg(us, "Gah! send_control for read_capacity failed\n"); |
1da177e4 LT |
342 | rc = USB_STOR_TRANSPORT_ERROR; |
343 | goto leave; | |
344 | } | |
345 | ||
346 | // read the reply | |
347 | rc = jumpshot_bulk_read(us, reply, 512); | |
348 | if (rc != USB_STOR_XFER_GOOD) { | |
349 | rc = USB_STOR_TRANSPORT_ERROR; | |
350 | goto leave; | |
351 | } | |
352 | ||
353 | info->sectors = ((u32)(reply[117]) << 24) | | |
354 | ((u32)(reply[116]) << 16) | | |
355 | ((u32)(reply[115]) << 8) | | |
356 | ((u32)(reply[114]) ); | |
357 | ||
358 | rc = USB_STOR_TRANSPORT_GOOD; | |
359 | ||
360 | leave: | |
361 | kfree(reply); | |
362 | return rc; | |
363 | } | |
364 | ||
365 | static int jumpshot_handle_mode_sense(struct us_data *us, | |
366 | struct scsi_cmnd * srb, | |
367 | int sense_6) | |
368 | { | |
369 | static unsigned char rw_err_page[12] = { | |
370 | 0x1, 0xA, 0x21, 1, 0, 0, 0, 0, 1, 0, 0, 0 | |
371 | }; | |
372 | static unsigned char cache_page[12] = { | |
373 | 0x8, 0xA, 0x1, 0, 0, 0, 0, 0, 0, 0, 0, 0 | |
374 | }; | |
375 | static unsigned char rbac_page[12] = { | |
376 | 0x1B, 0xA, 0, 0x81, 0, 0, 0, 0, 0, 0, 0, 0 | |
377 | }; | |
378 | static unsigned char timer_page[8] = { | |
379 | 0x1C, 0x6, 0, 0, 0, 0 | |
380 | }; | |
381 | unsigned char pc, page_code; | |
382 | unsigned int i = 0; | |
383 | struct jumpshot_info *info = (struct jumpshot_info *) (us->extra); | |
384 | unsigned char *ptr = us->iobuf; | |
385 | ||
386 | pc = srb->cmnd[2] >> 6; | |
387 | page_code = srb->cmnd[2] & 0x3F; | |
388 | ||
389 | switch (pc) { | |
390 | case 0x0: | |
191648d0 JP |
391 | usb_stor_dbg(us, "Current values\n"); |
392 | break; | |
1da177e4 | 393 | case 0x1: |
191648d0 JP |
394 | usb_stor_dbg(us, "Changeable values\n"); |
395 | break; | |
1da177e4 | 396 | case 0x2: |
191648d0 JP |
397 | usb_stor_dbg(us, "Default values\n"); |
398 | break; | |
1da177e4 | 399 | case 0x3: |
191648d0 JP |
400 | usb_stor_dbg(us, "Saves values\n"); |
401 | break; | |
1da177e4 LT |
402 | } |
403 | ||
404 | memset(ptr, 0, 8); | |
405 | if (sense_6) { | |
406 | ptr[2] = 0x00; // WP enable: 0x80 | |
407 | i = 4; | |
408 | } else { | |
409 | ptr[3] = 0x00; // WP enable: 0x80 | |
410 | i = 8; | |
411 | } | |
412 | ||
413 | switch (page_code) { | |
414 | case 0x0: | |
415 | // vendor-specific mode | |
416 | info->sense_key = 0x05; | |
417 | info->sense_asc = 0x24; | |
418 | info->sense_ascq = 0x00; | |
419 | return USB_STOR_TRANSPORT_FAILED; | |
420 | ||
421 | case 0x1: | |
422 | memcpy(ptr + i, rw_err_page, sizeof(rw_err_page)); | |
423 | i += sizeof(rw_err_page); | |
424 | break; | |
425 | ||
426 | case 0x8: | |
427 | memcpy(ptr + i, cache_page, sizeof(cache_page)); | |
428 | i += sizeof(cache_page); | |
429 | break; | |
430 | ||
431 | case 0x1B: | |
432 | memcpy(ptr + i, rbac_page, sizeof(rbac_page)); | |
433 | i += sizeof(rbac_page); | |
434 | break; | |
435 | ||
436 | case 0x1C: | |
437 | memcpy(ptr + i, timer_page, sizeof(timer_page)); | |
438 | i += sizeof(timer_page); | |
439 | break; | |
440 | ||
441 | case 0x3F: | |
442 | memcpy(ptr + i, timer_page, sizeof(timer_page)); | |
443 | i += sizeof(timer_page); | |
444 | memcpy(ptr + i, rbac_page, sizeof(rbac_page)); | |
445 | i += sizeof(rbac_page); | |
446 | memcpy(ptr + i, cache_page, sizeof(cache_page)); | |
447 | i += sizeof(cache_page); | |
448 | memcpy(ptr + i, rw_err_page, sizeof(rw_err_page)); | |
449 | i += sizeof(rw_err_page); | |
450 | break; | |
451 | } | |
452 | ||
453 | if (sense_6) | |
454 | ptr[0] = i - 1; | |
455 | else | |
456 | ((__be16 *) ptr)[0] = cpu_to_be16(i - 2); | |
457 | usb_stor_set_xfer_buf(ptr, i, srb); | |
458 | ||
459 | return USB_STOR_TRANSPORT_GOOD; | |
460 | } | |
461 | ||
462 | ||
463 | static void jumpshot_info_destructor(void *extra) | |
464 | { | |
465 | // this routine is a placeholder... | |
466 | // currently, we don't allocate any extra blocks so we're okay | |
467 | } | |
468 | ||
469 | ||
470 | ||
471 | // Transport for the Lexar 'Jumpshot' | |
472 | // | |
a9fb6d05 | 473 | static int jumpshot_transport(struct scsi_cmnd *srb, struct us_data *us) |
1da177e4 LT |
474 | { |
475 | struct jumpshot_info *info; | |
476 | int rc; | |
477 | unsigned long block, blocks; | |
478 | unsigned char *ptr = us->iobuf; | |
479 | static unsigned char inquiry_response[8] = { | |
480 | 0x00, 0x80, 0x00, 0x01, 0x1F, 0x00, 0x00, 0x00 | |
481 | }; | |
482 | ||
483 | if (!us->extra) { | |
887c2560 | 484 | us->extra = kzalloc(sizeof(struct jumpshot_info), GFP_NOIO); |
191648d0 | 485 | if (!us->extra) |
1da177e4 | 486 | return USB_STOR_TRANSPORT_ERROR; |
191648d0 | 487 | |
1da177e4 LT |
488 | us->extra_destructor = jumpshot_info_destructor; |
489 | } | |
490 | ||
491 | info = (struct jumpshot_info *) (us->extra); | |
492 | ||
493 | if (srb->cmnd[0] == INQUIRY) { | |
191648d0 | 494 | usb_stor_dbg(us, "INQUIRY - Returning bogus response\n"); |
1da177e4 LT |
495 | memcpy(ptr, inquiry_response, sizeof(inquiry_response)); |
496 | fill_inquiry_response(us, ptr, 36); | |
497 | return USB_STOR_TRANSPORT_GOOD; | |
498 | } | |
499 | ||
500 | if (srb->cmnd[0] == READ_CAPACITY) { | |
501 | info->ssize = 0x200; // hard coded 512 byte sectors as per ATA spec | |
502 | ||
503 | rc = jumpshot_get_status(us); | |
504 | if (rc != USB_STOR_TRANSPORT_GOOD) | |
505 | return rc; | |
506 | ||
507 | rc = jumpshot_id_device(us, info); | |
508 | if (rc != USB_STOR_TRANSPORT_GOOD) | |
509 | return rc; | |
510 | ||
191648d0 JP |
511 | usb_stor_dbg(us, "READ_CAPACITY: %ld sectors, %ld bytes per sector\n", |
512 | info->sectors, info->ssize); | |
1da177e4 LT |
513 | |
514 | // build the reply | |
515 | // | |
516 | ((__be32 *) ptr)[0] = cpu_to_be32(info->sectors - 1); | |
517 | ((__be32 *) ptr)[1] = cpu_to_be32(info->ssize); | |
518 | usb_stor_set_xfer_buf(ptr, 8, srb); | |
519 | ||
520 | return USB_STOR_TRANSPORT_GOOD; | |
521 | } | |
522 | ||
523 | if (srb->cmnd[0] == MODE_SELECT_10) { | |
191648d0 | 524 | usb_stor_dbg(us, "Gah! MODE_SELECT_10\n"); |
1da177e4 LT |
525 | return USB_STOR_TRANSPORT_ERROR; |
526 | } | |
527 | ||
528 | if (srb->cmnd[0] == READ_10) { | |
529 | block = ((u32)(srb->cmnd[2]) << 24) | ((u32)(srb->cmnd[3]) << 16) | | |
530 | ((u32)(srb->cmnd[4]) << 8) | ((u32)(srb->cmnd[5])); | |
531 | ||
532 | blocks = ((u32)(srb->cmnd[7]) << 8) | ((u32)(srb->cmnd[8])); | |
533 | ||
191648d0 JP |
534 | usb_stor_dbg(us, "READ_10: read block 0x%04lx count %ld\n", |
535 | block, blocks); | |
1da177e4 LT |
536 | return jumpshot_read_data(us, info, block, blocks); |
537 | } | |
538 | ||
539 | if (srb->cmnd[0] == READ_12) { | |
540 | // I don't think we'll ever see a READ_12 but support it anyway... | |
541 | // | |
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[6]) << 24) | ((u32)(srb->cmnd[7]) << 16) | | |
546 | ((u32)(srb->cmnd[8]) << 8) | ((u32)(srb->cmnd[9])); | |
547 | ||
191648d0 JP |
548 | usb_stor_dbg(us, "READ_12: read block 0x%04lx count %ld\n", |
549 | block, blocks); | |
1da177e4 LT |
550 | return jumpshot_read_data(us, info, block, blocks); |
551 | } | |
552 | ||
553 | if (srb->cmnd[0] == WRITE_10) { | |
554 | block = ((u32)(srb->cmnd[2]) << 24) | ((u32)(srb->cmnd[3]) << 16) | | |
555 | ((u32)(srb->cmnd[4]) << 8) | ((u32)(srb->cmnd[5])); | |
556 | ||
557 | blocks = ((u32)(srb->cmnd[7]) << 8) | ((u32)(srb->cmnd[8])); | |
558 | ||
191648d0 JP |
559 | usb_stor_dbg(us, "WRITE_10: write block 0x%04lx count %ld\n", |
560 | block, blocks); | |
1da177e4 LT |
561 | return jumpshot_write_data(us, info, block, blocks); |
562 | } | |
563 | ||
564 | if (srb->cmnd[0] == WRITE_12) { | |
565 | // I don't think we'll ever see a WRITE_12 but support it anyway... | |
566 | // | |
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[6]) << 24) | ((u32)(srb->cmnd[7]) << 16) | | |
571 | ((u32)(srb->cmnd[8]) << 8) | ((u32)(srb->cmnd[9])); | |
572 | ||
191648d0 JP |
573 | usb_stor_dbg(us, "WRITE_12: write block 0x%04lx count %ld\n", |
574 | block, blocks); | |
1da177e4 LT |
575 | return jumpshot_write_data(us, info, block, blocks); |
576 | } | |
577 | ||
578 | ||
579 | if (srb->cmnd[0] == TEST_UNIT_READY) { | |
191648d0 | 580 | usb_stor_dbg(us, "TEST_UNIT_READY\n"); |
1da177e4 LT |
581 | return jumpshot_get_status(us); |
582 | } | |
583 | ||
584 | if (srb->cmnd[0] == REQUEST_SENSE) { | |
191648d0 | 585 | usb_stor_dbg(us, "REQUEST_SENSE\n"); |
1da177e4 LT |
586 | |
587 | memset(ptr, 0, 18); | |
588 | ptr[0] = 0xF0; | |
589 | ptr[2] = info->sense_key; | |
590 | ptr[7] = 11; | |
591 | ptr[12] = info->sense_asc; | |
592 | ptr[13] = info->sense_ascq; | |
593 | usb_stor_set_xfer_buf(ptr, 18, srb); | |
594 | ||
595 | return USB_STOR_TRANSPORT_GOOD; | |
596 | } | |
597 | ||
598 | if (srb->cmnd[0] == MODE_SENSE) { | |
191648d0 | 599 | usb_stor_dbg(us, "MODE_SENSE_6 detected\n"); |
1da177e4 LT |
600 | return jumpshot_handle_mode_sense(us, srb, 1); |
601 | } | |
602 | ||
603 | if (srb->cmnd[0] == MODE_SENSE_10) { | |
191648d0 | 604 | usb_stor_dbg(us, "MODE_SENSE_10 detected\n"); |
1da177e4 LT |
605 | return jumpshot_handle_mode_sense(us, srb, 0); |
606 | } | |
607 | ||
608 | if (srb->cmnd[0] == ALLOW_MEDIUM_REMOVAL) { | |
f0183a33 FB |
609 | /* |
610 | * sure. whatever. not like we can stop the user from popping | |
611 | * the media out of the device (no locking doors, etc) | |
612 | */ | |
1da177e4 LT |
613 | return USB_STOR_TRANSPORT_GOOD; |
614 | } | |
615 | ||
616 | if (srb->cmnd[0] == START_STOP) { | |
f0183a33 FB |
617 | /* |
618 | * this is used by sd.c'check_scsidisk_media_change to detect | |
619 | * media change | |
620 | */ | |
191648d0 | 621 | usb_stor_dbg(us, "START_STOP\n"); |
f0183a33 FB |
622 | /* |
623 | * the first jumpshot_id_device after a media change returns | |
624 | * an error (determined experimentally) | |
625 | */ | |
1da177e4 LT |
626 | rc = jumpshot_id_device(us, info); |
627 | if (rc == USB_STOR_TRANSPORT_GOOD) { | |
628 | info->sense_key = NO_SENSE; | |
629 | srb->result = SUCCESS; | |
630 | } else { | |
631 | info->sense_key = UNIT_ATTENTION; | |
632 | srb->result = SAM_STAT_CHECK_CONDITION; | |
633 | } | |
634 | return rc; | |
635 | } | |
636 | ||
191648d0 JP |
637 | usb_stor_dbg(us, "Gah! Unknown command: %d (0x%x)\n", |
638 | srb->cmnd[0], srb->cmnd[0]); | |
1da177e4 LT |
639 | info->sense_key = 0x05; |
640 | info->sense_asc = 0x20; | |
641 | info->sense_ascq = 0x00; | |
642 | return USB_STOR_TRANSPORT_FAILED; | |
643 | } | |
a9fb6d05 | 644 | |
aa519be3 AM |
645 | static struct scsi_host_template jumpshot_host_template; |
646 | ||
a9fb6d05 AS |
647 | static int jumpshot_probe(struct usb_interface *intf, |
648 | const struct usb_device_id *id) | |
649 | { | |
650 | struct us_data *us; | |
651 | int result; | |
652 | ||
653 | result = usb_stor_probe1(&us, intf, id, | |
aa519be3 AM |
654 | (id - jumpshot_usb_ids) + jumpshot_unusual_dev_list, |
655 | &jumpshot_host_template); | |
a9fb6d05 AS |
656 | if (result) |
657 | return result; | |
658 | ||
659 | us->transport_name = "Lexar Jumpshot Control/Bulk"; | |
660 | us->transport = jumpshot_transport; | |
661 | us->transport_reset = usb_stor_Bulk_reset; | |
662 | us->max_lun = 1; | |
663 | ||
664 | result = usb_stor_probe2(us); | |
665 | return result; | |
666 | } | |
667 | ||
668 | static struct usb_driver jumpshot_driver = { | |
aa519be3 | 669 | .name = DRV_NAME, |
a9fb6d05 AS |
670 | .probe = jumpshot_probe, |
671 | .disconnect = usb_stor_disconnect, | |
672 | .suspend = usb_stor_suspend, | |
673 | .resume = usb_stor_resume, | |
674 | .reset_resume = usb_stor_reset_resume, | |
675 | .pre_reset = usb_stor_pre_reset, | |
676 | .post_reset = usb_stor_post_reset, | |
677 | .id_table = jumpshot_usb_ids, | |
678 | .soft_unbind = 1, | |
e73b2db6 | 679 | .no_dynamic_id = 1, |
a9fb6d05 AS |
680 | }; |
681 | ||
aa519be3 | 682 | module_usb_stor_driver(jumpshot_driver, jumpshot_host_template, DRV_NAME); |