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1da177e4 LT |
1 | /* Driver for SanDisk SDDR-09 SmartMedia reader |
2 | * | |
1da177e4 LT |
3 | * (c) 2000, 2001 Robert Baruch (autophile@starband.net) |
4 | * (c) 2002 Andries Brouwer (aeb@cwi.nl) | |
5 | * Developed with the assistance of: | |
6 | * (c) 2002 Alan Stern <stern@rowland.org> | |
7 | * | |
8 | * The SanDisk SDDR-09 SmartMedia reader uses the Shuttle EUSB-01 chip. | |
9 | * This chip is a programmable USB controller. In the SDDR-09, it has | |
10 | * been programmed to obey a certain limited set of SCSI commands. | |
11 | * This driver translates the "real" SCSI commands to the SDDR-09 SCSI | |
12 | * commands. | |
13 | * | |
14 | * This program is free software; you can redistribute it and/or modify it | |
15 | * under the terms of the GNU General Public License as published by the | |
16 | * Free Software Foundation; either version 2, or (at your option) any | |
17 | * later version. | |
18 | * | |
19 | * This program is distributed in the hope that it will be useful, but | |
20 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
22 | * General Public License for more details. | |
23 | * | |
24 | * You should have received a copy of the GNU General Public License along | |
25 | * with this program; if not, write to the Free Software Foundation, Inc., | |
26 | * 675 Mass Ave, Cambridge, MA 02139, USA. | |
27 | */ | |
28 | ||
29 | /* | |
30 | * Known vendor commands: 12 bytes, first byte is opcode | |
31 | * | |
32 | * E7: read scatter gather | |
33 | * E8: read | |
34 | * E9: write | |
35 | * EA: erase | |
36 | * EB: reset | |
37 | * EC: read status | |
38 | * ED: read ID | |
39 | * EE: write CIS (?) | |
40 | * EF: compute checksum (?) | |
41 | */ | |
42 | ||
1da177e4 | 43 | #include <linux/errno.h> |
0ff71883 | 44 | #include <linux/module.h> |
1da177e4 LT |
45 | #include <linux/slab.h> |
46 | ||
47 | #include <scsi/scsi.h> | |
48 | #include <scsi/scsi_cmnd.h> | |
c20b15fd | 49 | #include <scsi/scsi_device.h> |
1da177e4 LT |
50 | |
51 | #include "usb.h" | |
52 | #include "transport.h" | |
53 | #include "protocol.h" | |
54 | #include "debug.h" | |
0ff71883 | 55 | |
4246b06a MG |
56 | MODULE_DESCRIPTION("Driver for SanDisk SDDR-09 SmartMedia reader"); |
57 | MODULE_AUTHOR("Andries Brouwer <aeb@cwi.nl>, Robert Baruch <autophile@starband.net>"); | |
58 | MODULE_LICENSE("GPL"); | |
0ff71883 AS |
59 | |
60 | static int usb_stor_sddr09_dpcm_init(struct us_data *us); | |
61 | static int sddr09_transport(struct scsi_cmnd *srb, struct us_data *us); | |
62 | static int usb_stor_sddr09_init(struct us_data *us); | |
63 | ||
64 | ||
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), \ | |
72 | .driver_info = (flags)|(USB_US_TYPE_STOR<<24) } | |
73 | ||
74 | struct usb_device_id sddr09_usb_ids[] = { | |
75 | # include "unusual_sddr09.h" | |
76 | { } /* Terminating entry */ | |
77 | }; | |
78 | MODULE_DEVICE_TABLE(usb, sddr09_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 sddr09_unusual_dev_list[] = { | |
97 | # include "unusual_sddr09.h" | |
98 | { } /* Terminating entry */ | |
99 | }; | |
100 | ||
101 | #undef UNUSUAL_DEV | |
1da177e4 LT |
102 | |
103 | ||
104 | #define short_pack(lsb,msb) ( ((u16)(lsb)) | ( ((u16)(msb))<<8 ) ) | |
105 | #define LSB_of(s) ((s)&0xFF) | |
106 | #define MSB_of(s) ((s)>>8) | |
107 | ||
108 | /* #define US_DEBUGP printk */ | |
109 | ||
110 | /* | |
111 | * First some stuff that does not belong here: | |
112 | * data on SmartMedia and other cards, completely | |
113 | * unrelated to this driver. | |
114 | * Similar stuff occurs in <linux/mtd/nand_ids.h>. | |
115 | */ | |
116 | ||
117 | struct nand_flash_dev { | |
118 | int model_id; | |
119 | int chipshift; /* 1<<cs bytes total capacity */ | |
120 | char pageshift; /* 1<<ps bytes in a page */ | |
121 | char blockshift; /* 1<<bs pages in an erase block */ | |
122 | char zoneshift; /* 1<<zs blocks in a zone */ | |
123 | /* # of logical blocks is 125/128 of this */ | |
124 | char pageadrlen; /* length of an address in bytes - 1 */ | |
125 | }; | |
126 | ||
127 | /* | |
128 | * NAND Flash Manufacturer ID Codes | |
129 | */ | |
130 | #define NAND_MFR_AMD 0x01 | |
131 | #define NAND_MFR_NATSEMI 0x8f | |
132 | #define NAND_MFR_TOSHIBA 0x98 | |
133 | #define NAND_MFR_SAMSUNG 0xec | |
134 | ||
135 | static inline char *nand_flash_manufacturer(int manuf_id) { | |
136 | switch(manuf_id) { | |
137 | case NAND_MFR_AMD: | |
138 | return "AMD"; | |
139 | case NAND_MFR_NATSEMI: | |
140 | return "NATSEMI"; | |
141 | case NAND_MFR_TOSHIBA: | |
142 | return "Toshiba"; | |
143 | case NAND_MFR_SAMSUNG: | |
144 | return "Samsung"; | |
145 | default: | |
146 | return "unknown"; | |
147 | } | |
148 | } | |
149 | ||
150 | /* | |
151 | * It looks like it is unnecessary to attach manufacturer to the | |
152 | * remaining data: SSFDC prescribes manufacturer-independent id codes. | |
153 | * | |
154 | * 256 MB NAND flash has a 5-byte ID with 2nd byte 0xaa, 0xba, 0xca or 0xda. | |
155 | */ | |
156 | ||
157 | static struct nand_flash_dev nand_flash_ids[] = { | |
158 | /* NAND flash */ | |
159 | { 0x6e, 20, 8, 4, 8, 2}, /* 1 MB */ | |
160 | { 0xe8, 20, 8, 4, 8, 2}, /* 1 MB */ | |
161 | { 0xec, 20, 8, 4, 8, 2}, /* 1 MB */ | |
162 | { 0x64, 21, 8, 4, 9, 2}, /* 2 MB */ | |
163 | { 0xea, 21, 8, 4, 9, 2}, /* 2 MB */ | |
164 | { 0x6b, 22, 9, 4, 9, 2}, /* 4 MB */ | |
165 | { 0xe3, 22, 9, 4, 9, 2}, /* 4 MB */ | |
166 | { 0xe5, 22, 9, 4, 9, 2}, /* 4 MB */ | |
167 | { 0xe6, 23, 9, 4, 10, 2}, /* 8 MB */ | |
168 | { 0x73, 24, 9, 5, 10, 2}, /* 16 MB */ | |
169 | { 0x75, 25, 9, 5, 10, 2}, /* 32 MB */ | |
170 | { 0x76, 26, 9, 5, 10, 3}, /* 64 MB */ | |
171 | { 0x79, 27, 9, 5, 10, 3}, /* 128 MB */ | |
172 | ||
173 | /* MASK ROM */ | |
174 | { 0x5d, 21, 9, 4, 8, 2}, /* 2 MB */ | |
175 | { 0xd5, 22, 9, 4, 9, 2}, /* 4 MB */ | |
176 | { 0xd6, 23, 9, 4, 10, 2}, /* 8 MB */ | |
177 | { 0x57, 24, 9, 4, 11, 2}, /* 16 MB */ | |
178 | { 0x58, 25, 9, 4, 12, 2}, /* 32 MB */ | |
179 | { 0,} | |
180 | }; | |
181 | ||
1da177e4 LT |
182 | static struct nand_flash_dev * |
183 | nand_find_id(unsigned char id) { | |
184 | int i; | |
185 | ||
52950ed4 | 186 | for (i = 0; i < ARRAY_SIZE(nand_flash_ids); i++) |
1da177e4 LT |
187 | if (nand_flash_ids[i].model_id == id) |
188 | return &(nand_flash_ids[i]); | |
189 | return NULL; | |
190 | } | |
191 | ||
192 | /* | |
193 | * ECC computation. | |
194 | */ | |
195 | static unsigned char parity[256]; | |
196 | static unsigned char ecc2[256]; | |
197 | ||
198 | static void nand_init_ecc(void) { | |
199 | int i, j, a; | |
200 | ||
201 | parity[0] = 0; | |
202 | for (i = 1; i < 256; i++) | |
203 | parity[i] = (parity[i&(i-1)] ^ 1); | |
204 | ||
205 | for (i = 0; i < 256; i++) { | |
206 | a = 0; | |
207 | for (j = 0; j < 8; j++) { | |
208 | if (i & (1<<j)) { | |
209 | if ((j & 1) == 0) | |
210 | a ^= 0x04; | |
211 | if ((j & 2) == 0) | |
212 | a ^= 0x10; | |
213 | if ((j & 4) == 0) | |
214 | a ^= 0x40; | |
215 | } | |
216 | } | |
217 | ecc2[i] = ~(a ^ (a<<1) ^ (parity[i] ? 0xa8 : 0)); | |
218 | } | |
219 | } | |
220 | ||
221 | /* compute 3-byte ecc on 256 bytes */ | |
222 | static void nand_compute_ecc(unsigned char *data, unsigned char *ecc) { | |
223 | int i, j, a; | |
224 | unsigned char par, bit, bits[8]; | |
225 | ||
226 | par = 0; | |
227 | for (j = 0; j < 8; j++) | |
228 | bits[j] = 0; | |
229 | ||
230 | /* collect 16 checksum bits */ | |
231 | for (i = 0; i < 256; i++) { | |
232 | par ^= data[i]; | |
233 | bit = parity[data[i]]; | |
234 | for (j = 0; j < 8; j++) | |
235 | if ((i & (1<<j)) == 0) | |
236 | bits[j] ^= bit; | |
237 | } | |
238 | ||
239 | /* put 4+4+4 = 12 bits in the ecc */ | |
240 | a = (bits[3] << 6) + (bits[2] << 4) + (bits[1] << 2) + bits[0]; | |
241 | ecc[0] = ~(a ^ (a<<1) ^ (parity[par] ? 0xaa : 0)); | |
242 | ||
243 | a = (bits[7] << 6) + (bits[6] << 4) + (bits[5] << 2) + bits[4]; | |
244 | ecc[1] = ~(a ^ (a<<1) ^ (parity[par] ? 0xaa : 0)); | |
245 | ||
246 | ecc[2] = ecc2[par]; | |
247 | } | |
248 | ||
249 | static int nand_compare_ecc(unsigned char *data, unsigned char *ecc) { | |
250 | return (data[0] == ecc[0] && data[1] == ecc[1] && data[2] == ecc[2]); | |
251 | } | |
252 | ||
253 | static void nand_store_ecc(unsigned char *data, unsigned char *ecc) { | |
254 | memcpy(data, ecc, 3); | |
255 | } | |
256 | ||
257 | /* | |
258 | * The actual driver starts here. | |
259 | */ | |
260 | ||
f5b8cb9c MD |
261 | struct sddr09_card_info { |
262 | unsigned long capacity; /* Size of card in bytes */ | |
263 | int pagesize; /* Size of page in bytes */ | |
264 | int pageshift; /* log2 of pagesize */ | |
265 | int blocksize; /* Size of block in pages */ | |
266 | int blockshift; /* log2 of blocksize */ | |
267 | int blockmask; /* 2^blockshift - 1 */ | |
268 | int *lba_to_pba; /* logical to physical map */ | |
269 | int *pba_to_lba; /* physical to logical map */ | |
270 | int lbact; /* number of available pages */ | |
271 | int flags; | |
272 | #define SDDR09_WP 1 /* write protected */ | |
273 | }; | |
274 | ||
1da177e4 LT |
275 | /* |
276 | * On my 16MB card, control blocks have size 64 (16 real control bytes, | |
277 | * and 48 junk bytes). In reality of course the card uses 16 control bytes, | |
278 | * so the reader makes up the remaining 48. Don't know whether these numbers | |
279 | * depend on the card. For now a constant. | |
280 | */ | |
281 | #define CONTROL_SHIFT 6 | |
282 | ||
283 | /* | |
284 | * On my Combo CF/SM reader, the SM reader has LUN 1. | |
285 | * (and things fail with LUN 0). | |
286 | * It seems LUN is irrelevant for others. | |
287 | */ | |
288 | #define LUN 1 | |
289 | #define LUNBITS (LUN << 5) | |
290 | ||
291 | /* | |
292 | * LBA and PBA are unsigned ints. Special values. | |
293 | */ | |
294 | #define UNDEF 0xffffffff | |
295 | #define SPARE 0xfffffffe | |
296 | #define UNUSABLE 0xfffffffd | |
297 | ||
4c4c9432 | 298 | static const int erase_bad_lba_entries = 0; |
1da177e4 LT |
299 | |
300 | /* send vendor interface command (0x41) */ | |
301 | /* called for requests 0, 1, 8 */ | |
302 | static int | |
303 | sddr09_send_command(struct us_data *us, | |
304 | unsigned char request, | |
305 | unsigned char direction, | |
306 | unsigned char *xfer_data, | |
307 | unsigned int xfer_len) { | |
308 | unsigned int pipe; | |
309 | unsigned char requesttype = (0x41 | direction); | |
310 | int rc; | |
311 | ||
312 | // Get the receive or send control pipe number | |
313 | ||
314 | if (direction == USB_DIR_IN) | |
315 | pipe = us->recv_ctrl_pipe; | |
316 | else | |
317 | pipe = us->send_ctrl_pipe; | |
318 | ||
319 | rc = usb_stor_ctrl_transfer(us, pipe, request, requesttype, | |
320 | 0, 0, xfer_data, xfer_len); | |
0dc08a35 MD |
321 | switch (rc) { |
322 | case USB_STOR_XFER_GOOD: return 0; | |
323 | case USB_STOR_XFER_STALLED: return -EPIPE; | |
324 | default: return -EIO; | |
325 | } | |
1da177e4 LT |
326 | } |
327 | ||
328 | static int | |
329 | sddr09_send_scsi_command(struct us_data *us, | |
330 | unsigned char *command, | |
331 | unsigned int command_len) { | |
332 | return sddr09_send_command(us, 0, USB_DIR_OUT, command, command_len); | |
333 | } | |
334 | ||
335 | #if 0 | |
336 | /* | |
337 | * Test Unit Ready Command: 12 bytes. | |
338 | * byte 0: opcode: 00 | |
339 | */ | |
340 | static int | |
341 | sddr09_test_unit_ready(struct us_data *us) { | |
342 | unsigned char *command = us->iobuf; | |
343 | int result; | |
344 | ||
345 | memset(command, 0, 6); | |
346 | command[1] = LUNBITS; | |
347 | ||
348 | result = sddr09_send_scsi_command(us, command, 6); | |
349 | ||
350 | US_DEBUGP("sddr09_test_unit_ready returns %d\n", result); | |
351 | ||
352 | return result; | |
353 | } | |
354 | #endif | |
355 | ||
356 | /* | |
357 | * Request Sense Command: 12 bytes. | |
358 | * byte 0: opcode: 03 | |
359 | * byte 4: data length | |
360 | */ | |
361 | static int | |
362 | sddr09_request_sense(struct us_data *us, unsigned char *sensebuf, int buflen) { | |
363 | unsigned char *command = us->iobuf; | |
364 | int result; | |
365 | ||
366 | memset(command, 0, 12); | |
367 | command[0] = 0x03; | |
368 | command[1] = LUNBITS; | |
369 | command[4] = buflen; | |
370 | ||
371 | result = sddr09_send_scsi_command(us, command, 12); | |
0dc08a35 | 372 | if (result) |
1da177e4 | 373 | return result; |
1da177e4 LT |
374 | |
375 | result = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe, | |
376 | sensebuf, buflen, NULL); | |
0dc08a35 | 377 | return (result == USB_STOR_XFER_GOOD ? 0 : -EIO); |
1da177e4 LT |
378 | } |
379 | ||
380 | /* | |
381 | * Read Command: 12 bytes. | |
382 | * byte 0: opcode: E8 | |
383 | * byte 1: last two bits: 00: read data, 01: read blockwise control, | |
384 | * 10: read both, 11: read pagewise control. | |
385 | * It turns out we need values 20, 21, 22, 23 here (LUN 1). | |
386 | * bytes 2-5: address (interpretation depends on byte 1, see below) | |
387 | * bytes 10-11: count (idem) | |
388 | * | |
389 | * A page has 512 data bytes and 64 control bytes (16 control and 48 junk). | |
390 | * A read data command gets data in 512-byte pages. | |
391 | * A read control command gets control in 64-byte chunks. | |
392 | * A read both command gets data+control in 576-byte chunks. | |
393 | * | |
394 | * Blocks are groups of 32 pages, and read blockwise control jumps to the | |
395 | * next block, while read pagewise control jumps to the next page after | |
396 | * reading a group of 64 control bytes. | |
397 | * [Here 512 = 1<<pageshift, 32 = 1<<blockshift, 64 is constant?] | |
398 | * | |
399 | * (1 MB and 2 MB cards are a bit different, but I have only a 16 MB card.) | |
400 | */ | |
401 | ||
402 | static int | |
403 | sddr09_readX(struct us_data *us, int x, unsigned long fromaddress, | |
404 | int nr_of_pages, int bulklen, unsigned char *buf, | |
405 | int use_sg) { | |
406 | ||
407 | unsigned char *command = us->iobuf; | |
408 | int result; | |
409 | ||
410 | command[0] = 0xE8; | |
411 | command[1] = LUNBITS | x; | |
412 | command[2] = MSB_of(fromaddress>>16); | |
413 | command[3] = LSB_of(fromaddress>>16); | |
414 | command[4] = MSB_of(fromaddress & 0xFFFF); | |
415 | command[5] = LSB_of(fromaddress & 0xFFFF); | |
416 | command[6] = 0; | |
417 | command[7] = 0; | |
418 | command[8] = 0; | |
419 | command[9] = 0; | |
420 | command[10] = MSB_of(nr_of_pages); | |
421 | command[11] = LSB_of(nr_of_pages); | |
422 | ||
423 | result = sddr09_send_scsi_command(us, command, 12); | |
424 | ||
0dc08a35 | 425 | if (result) { |
1da177e4 LT |
426 | US_DEBUGP("Result for send_control in sddr09_read2%d %d\n", |
427 | x, result); | |
428 | return result; | |
429 | } | |
430 | ||
431 | result = usb_stor_bulk_transfer_sg(us, us->recv_bulk_pipe, | |
432 | buf, bulklen, use_sg, NULL); | |
433 | ||
434 | if (result != USB_STOR_XFER_GOOD) { | |
435 | US_DEBUGP("Result for bulk_transfer in sddr09_read2%d %d\n", | |
436 | x, result); | |
0dc08a35 | 437 | return -EIO; |
1da177e4 | 438 | } |
0dc08a35 | 439 | return 0; |
1da177e4 LT |
440 | } |
441 | ||
442 | /* | |
443 | * Read Data | |
444 | * | |
445 | * fromaddress counts data shorts: | |
446 | * increasing it by 256 shifts the bytestream by 512 bytes; | |
447 | * the last 8 bits are ignored. | |
448 | * | |
449 | * nr_of_pages counts pages of size (1 << pageshift). | |
450 | */ | |
451 | static int | |
452 | sddr09_read20(struct us_data *us, unsigned long fromaddress, | |
453 | int nr_of_pages, int pageshift, unsigned char *buf, int use_sg) { | |
454 | int bulklen = nr_of_pages << pageshift; | |
455 | ||
456 | /* The last 8 bits of fromaddress are ignored. */ | |
457 | return sddr09_readX(us, 0, fromaddress, nr_of_pages, bulklen, | |
458 | buf, use_sg); | |
459 | } | |
460 | ||
461 | /* | |
462 | * Read Blockwise Control | |
463 | * | |
464 | * fromaddress gives the starting position (as in read data; | |
465 | * the last 8 bits are ignored); increasing it by 32*256 shifts | |
466 | * the output stream by 64 bytes. | |
467 | * | |
468 | * count counts control groups of size (1 << controlshift). | |
469 | * For me, controlshift = 6. Is this constant? | |
470 | * | |
471 | * After getting one control group, jump to the next block | |
472 | * (fromaddress += 8192). | |
473 | */ | |
474 | static int | |
475 | sddr09_read21(struct us_data *us, unsigned long fromaddress, | |
476 | int count, int controlshift, unsigned char *buf, int use_sg) { | |
477 | ||
478 | int bulklen = (count << controlshift); | |
479 | return sddr09_readX(us, 1, fromaddress, count, bulklen, | |
480 | buf, use_sg); | |
481 | } | |
482 | ||
483 | /* | |
484 | * Read both Data and Control | |
485 | * | |
486 | * fromaddress counts data shorts, ignoring control: | |
487 | * increasing it by 256 shifts the bytestream by 576 = 512+64 bytes; | |
488 | * the last 8 bits are ignored. | |
489 | * | |
490 | * nr_of_pages counts pages of size (1 << pageshift) + (1 << controlshift). | |
491 | */ | |
492 | static int | |
493 | sddr09_read22(struct us_data *us, unsigned long fromaddress, | |
494 | int nr_of_pages, int pageshift, unsigned char *buf, int use_sg) { | |
495 | ||
496 | int bulklen = (nr_of_pages << pageshift) + (nr_of_pages << CONTROL_SHIFT); | |
497 | US_DEBUGP("sddr09_read22: reading %d pages, %d bytes\n", | |
498 | nr_of_pages, bulklen); | |
499 | return sddr09_readX(us, 2, fromaddress, nr_of_pages, bulklen, | |
500 | buf, use_sg); | |
501 | } | |
502 | ||
503 | #if 0 | |
504 | /* | |
505 | * Read Pagewise Control | |
506 | * | |
507 | * fromaddress gives the starting position (as in read data; | |
508 | * the last 8 bits are ignored); increasing it by 256 shifts | |
509 | * the output stream by 64 bytes. | |
510 | * | |
511 | * count counts control groups of size (1 << controlshift). | |
512 | * For me, controlshift = 6. Is this constant? | |
513 | * | |
514 | * After getting one control group, jump to the next page | |
515 | * (fromaddress += 256). | |
516 | */ | |
517 | static int | |
518 | sddr09_read23(struct us_data *us, unsigned long fromaddress, | |
519 | int count, int controlshift, unsigned char *buf, int use_sg) { | |
520 | ||
521 | int bulklen = (count << controlshift); | |
522 | return sddr09_readX(us, 3, fromaddress, count, bulklen, | |
523 | buf, use_sg); | |
524 | } | |
525 | #endif | |
526 | ||
527 | /* | |
528 | * Erase Command: 12 bytes. | |
529 | * byte 0: opcode: EA | |
530 | * bytes 6-9: erase address (big-endian, counting shorts, sector aligned). | |
531 | * | |
532 | * Always precisely one block is erased; bytes 2-5 and 10-11 are ignored. | |
533 | * The byte address being erased is 2*Eaddress. | |
534 | * The CIS cannot be erased. | |
535 | */ | |
536 | static int | |
537 | sddr09_erase(struct us_data *us, unsigned long Eaddress) { | |
538 | unsigned char *command = us->iobuf; | |
539 | int result; | |
540 | ||
541 | US_DEBUGP("sddr09_erase: erase address %lu\n", Eaddress); | |
542 | ||
543 | memset(command, 0, 12); | |
544 | command[0] = 0xEA; | |
545 | command[1] = LUNBITS; | |
546 | command[6] = MSB_of(Eaddress>>16); | |
547 | command[7] = LSB_of(Eaddress>>16); | |
548 | command[8] = MSB_of(Eaddress & 0xFFFF); | |
549 | command[9] = LSB_of(Eaddress & 0xFFFF); | |
550 | ||
551 | result = sddr09_send_scsi_command(us, command, 12); | |
552 | ||
0dc08a35 | 553 | if (result) |
1da177e4 LT |
554 | US_DEBUGP("Result for send_control in sddr09_erase %d\n", |
555 | result); | |
556 | ||
557 | return result; | |
558 | } | |
559 | ||
560 | /* | |
561 | * Write CIS Command: 12 bytes. | |
562 | * byte 0: opcode: EE | |
563 | * bytes 2-5: write address in shorts | |
564 | * bytes 10-11: sector count | |
565 | * | |
566 | * This writes at the indicated address. Don't know how it differs | |
567 | * from E9. Maybe it does not erase? However, it will also write to | |
568 | * the CIS. | |
569 | * | |
570 | * When two such commands on the same page follow each other directly, | |
571 | * the second one is not done. | |
572 | */ | |
573 | ||
574 | /* | |
575 | * Write Command: 12 bytes. | |
576 | * byte 0: opcode: E9 | |
577 | * bytes 2-5: write address (big-endian, counting shorts, sector aligned). | |
578 | * bytes 6-9: erase address (big-endian, counting shorts, sector aligned). | |
579 | * bytes 10-11: sector count (big-endian, in 512-byte sectors). | |
580 | * | |
581 | * If write address equals erase address, the erase is done first, | |
582 | * otherwise the write is done first. When erase address equals zero | |
583 | * no erase is done? | |
584 | */ | |
585 | static int | |
586 | sddr09_writeX(struct us_data *us, | |
587 | unsigned long Waddress, unsigned long Eaddress, | |
588 | int nr_of_pages, int bulklen, unsigned char *buf, int use_sg) { | |
589 | ||
590 | unsigned char *command = us->iobuf; | |
591 | int result; | |
592 | ||
593 | command[0] = 0xE9; | |
594 | command[1] = LUNBITS; | |
595 | ||
596 | command[2] = MSB_of(Waddress>>16); | |
597 | command[3] = LSB_of(Waddress>>16); | |
598 | command[4] = MSB_of(Waddress & 0xFFFF); | |
599 | command[5] = LSB_of(Waddress & 0xFFFF); | |
600 | ||
601 | command[6] = MSB_of(Eaddress>>16); | |
602 | command[7] = LSB_of(Eaddress>>16); | |
603 | command[8] = MSB_of(Eaddress & 0xFFFF); | |
604 | command[9] = LSB_of(Eaddress & 0xFFFF); | |
605 | ||
606 | command[10] = MSB_of(nr_of_pages); | |
607 | command[11] = LSB_of(nr_of_pages); | |
608 | ||
609 | result = sddr09_send_scsi_command(us, command, 12); | |
610 | ||
0dc08a35 | 611 | if (result) { |
1da177e4 LT |
612 | US_DEBUGP("Result for send_control in sddr09_writeX %d\n", |
613 | result); | |
614 | return result; | |
615 | } | |
616 | ||
617 | result = usb_stor_bulk_transfer_sg(us, us->send_bulk_pipe, | |
618 | buf, bulklen, use_sg, NULL); | |
619 | ||
620 | if (result != USB_STOR_XFER_GOOD) { | |
621 | US_DEBUGP("Result for bulk_transfer in sddr09_writeX %d\n", | |
622 | result); | |
0dc08a35 | 623 | return -EIO; |
1da177e4 | 624 | } |
0dc08a35 | 625 | return 0; |
1da177e4 LT |
626 | } |
627 | ||
628 | /* erase address, write same address */ | |
629 | static int | |
630 | sddr09_write_inplace(struct us_data *us, unsigned long address, | |
631 | int nr_of_pages, int pageshift, unsigned char *buf, | |
632 | int use_sg) { | |
633 | int bulklen = (nr_of_pages << pageshift) + (nr_of_pages << CONTROL_SHIFT); | |
634 | return sddr09_writeX(us, address, address, nr_of_pages, bulklen, | |
635 | buf, use_sg); | |
636 | } | |
637 | ||
638 | #if 0 | |
639 | /* | |
640 | * Read Scatter Gather Command: 3+4n bytes. | |
641 | * byte 0: opcode E7 | |
642 | * byte 2: n | |
643 | * bytes 4i-1,4i,4i+1: page address | |
644 | * byte 4i+2: page count | |
645 | * (i=1..n) | |
646 | * | |
647 | * This reads several pages from the card to a single memory buffer. | |
648 | * The last two bits of byte 1 have the same meaning as for E8. | |
649 | */ | |
650 | static int | |
651 | sddr09_read_sg_test_only(struct us_data *us) { | |
652 | unsigned char *command = us->iobuf; | |
653 | int result, bulklen, nsg, ct; | |
654 | unsigned char *buf; | |
655 | unsigned long address; | |
656 | ||
657 | nsg = bulklen = 0; | |
658 | command[0] = 0xE7; | |
659 | command[1] = LUNBITS; | |
660 | command[2] = 0; | |
661 | address = 040000; ct = 1; | |
662 | nsg++; | |
663 | bulklen += (ct << 9); | |
664 | command[4*nsg+2] = ct; | |
665 | command[4*nsg+1] = ((address >> 9) & 0xFF); | |
666 | command[4*nsg+0] = ((address >> 17) & 0xFF); | |
667 | command[4*nsg-1] = ((address >> 25) & 0xFF); | |
668 | ||
669 | address = 0340000; ct = 1; | |
670 | nsg++; | |
671 | bulklen += (ct << 9); | |
672 | command[4*nsg+2] = ct; | |
673 | command[4*nsg+1] = ((address >> 9) & 0xFF); | |
674 | command[4*nsg+0] = ((address >> 17) & 0xFF); | |
675 | command[4*nsg-1] = ((address >> 25) & 0xFF); | |
676 | ||
677 | address = 01000000; ct = 2; | |
678 | nsg++; | |
679 | bulklen += (ct << 9); | |
680 | command[4*nsg+2] = ct; | |
681 | command[4*nsg+1] = ((address >> 9) & 0xFF); | |
682 | command[4*nsg+0] = ((address >> 17) & 0xFF); | |
683 | command[4*nsg-1] = ((address >> 25) & 0xFF); | |
684 | ||
685 | command[2] = nsg; | |
686 | ||
687 | result = sddr09_send_scsi_command(us, command, 4*nsg+3); | |
688 | ||
0dc08a35 | 689 | if (result) { |
1da177e4 LT |
690 | US_DEBUGP("Result for send_control in sddr09_read_sg %d\n", |
691 | result); | |
692 | return result; | |
693 | } | |
694 | ||
5cbded58 | 695 | buf = kmalloc(bulklen, GFP_NOIO); |
1da177e4 | 696 | if (!buf) |
0dc08a35 | 697 | return -ENOMEM; |
1da177e4 LT |
698 | |
699 | result = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe, | |
700 | buf, bulklen, NULL); | |
701 | kfree(buf); | |
702 | if (result != USB_STOR_XFER_GOOD) { | |
703 | US_DEBUGP("Result for bulk_transfer in sddr09_read_sg %d\n", | |
704 | result); | |
0dc08a35 | 705 | return -EIO; |
1da177e4 LT |
706 | } |
707 | ||
0dc08a35 | 708 | return 0; |
1da177e4 LT |
709 | } |
710 | #endif | |
711 | ||
712 | /* | |
713 | * Read Status Command: 12 bytes. | |
714 | * byte 0: opcode: EC | |
715 | * | |
716 | * Returns 64 bytes, all zero except for the first. | |
717 | * bit 0: 1: Error | |
718 | * bit 5: 1: Suspended | |
719 | * bit 6: 1: Ready | |
720 | * bit 7: 1: Not write-protected | |
721 | */ | |
722 | ||
723 | static int | |
724 | sddr09_read_status(struct us_data *us, unsigned char *status) { | |
725 | ||
726 | unsigned char *command = us->iobuf; | |
727 | unsigned char *data = us->iobuf; | |
728 | int result; | |
729 | ||
730 | US_DEBUGP("Reading status...\n"); | |
731 | ||
732 | memset(command, 0, 12); | |
733 | command[0] = 0xEC; | |
734 | command[1] = LUNBITS; | |
735 | ||
736 | result = sddr09_send_scsi_command(us, command, 12); | |
0dc08a35 | 737 | if (result) |
1da177e4 LT |
738 | return result; |
739 | ||
740 | result = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe, | |
741 | data, 64, NULL); | |
742 | *status = data[0]; | |
0dc08a35 | 743 | return (result == USB_STOR_XFER_GOOD ? 0 : -EIO); |
1da177e4 LT |
744 | } |
745 | ||
746 | static int | |
747 | sddr09_read_data(struct us_data *us, | |
748 | unsigned long address, | |
749 | unsigned int sectors) { | |
750 | ||
751 | struct sddr09_card_info *info = (struct sddr09_card_info *) us->extra; | |
752 | unsigned char *buffer; | |
753 | unsigned int lba, maxlba, pba; | |
754 | unsigned int page, pages; | |
1f6f31a0 JA |
755 | unsigned int len, offset; |
756 | struct scatterlist *sg; | |
1da177e4 LT |
757 | int result; |
758 | ||
a6c976c6 MD |
759 | // Figure out the initial LBA and page |
760 | lba = address >> info->blockshift; | |
761 | page = (address & info->blockmask); | |
762 | maxlba = info->capacity >> (info->pageshift + info->blockshift); | |
763 | if (lba >= maxlba) | |
764 | return -EIO; | |
765 | ||
1da177e4 LT |
766 | // Since we only read in one block at a time, we have to create |
767 | // a bounce buffer and move the data a piece at a time between the | |
768 | // bounce buffer and the actual transfer buffer. | |
769 | ||
770 | len = min(sectors, (unsigned int) info->blocksize) * info->pagesize; | |
771 | buffer = kmalloc(len, GFP_NOIO); | |
772 | if (buffer == NULL) { | |
6f8aa65b | 773 | printk(KERN_WARNING "sddr09_read_data: Out of memory\n"); |
0dc08a35 | 774 | return -ENOMEM; |
1da177e4 LT |
775 | } |
776 | ||
1da177e4 LT |
777 | // This could be made much more efficient by checking for |
778 | // contiguous LBA's. Another exercise left to the student. | |
779 | ||
0dc08a35 | 780 | result = 0; |
1f6f31a0 JA |
781 | offset = 0; |
782 | sg = NULL; | |
1da177e4 LT |
783 | |
784 | while (sectors > 0) { | |
785 | ||
786 | /* Find number of pages we can read in this block */ | |
787 | pages = min(sectors, info->blocksize - page); | |
788 | len = pages << info->pageshift; | |
789 | ||
790 | /* Not overflowing capacity? */ | |
791 | if (lba >= maxlba) { | |
792 | US_DEBUGP("Error: Requested lba %u exceeds " | |
793 | "maximum %u\n", lba, maxlba); | |
0dc08a35 | 794 | result = -EIO; |
1da177e4 LT |
795 | break; |
796 | } | |
797 | ||
798 | /* Find where this lba lives on disk */ | |
799 | pba = info->lba_to_pba[lba]; | |
800 | ||
801 | if (pba == UNDEF) { /* this lba was never written */ | |
802 | ||
803 | US_DEBUGP("Read %d zero pages (LBA %d) page %d\n", | |
804 | pages, lba, page); | |
805 | ||
806 | /* This is not really an error. It just means | |
807 | that the block has never been written. | |
0dc08a35 | 808 | Instead of returning an error |
1da177e4 LT |
809 | it is better to return all zero data. */ |
810 | ||
811 | memset(buffer, 0, len); | |
812 | ||
813 | } else { | |
814 | US_DEBUGP("Read %d pages, from PBA %d" | |
815 | " (LBA %d) page %d\n", | |
816 | pages, pba, lba, page); | |
817 | ||
818 | address = ((pba << info->blockshift) + page) << | |
819 | info->pageshift; | |
820 | ||
821 | result = sddr09_read20(us, address>>1, | |
822 | pages, info->pageshift, buffer, 0); | |
0dc08a35 | 823 | if (result) |
1da177e4 LT |
824 | break; |
825 | } | |
826 | ||
827 | // Store the data in the transfer buffer | |
828 | usb_stor_access_xfer_buf(buffer, len, us->srb, | |
1f6f31a0 | 829 | &sg, &offset, TO_XFER_BUF); |
1da177e4 LT |
830 | |
831 | page = 0; | |
832 | lba++; | |
833 | sectors -= pages; | |
834 | } | |
835 | ||
836 | kfree(buffer); | |
837 | return result; | |
838 | } | |
839 | ||
840 | static unsigned int | |
841 | sddr09_find_unused_pba(struct sddr09_card_info *info, unsigned int lba) { | |
842 | static unsigned int lastpba = 1; | |
843 | int zonestart, end, i; | |
844 | ||
845 | zonestart = (lba/1000) << 10; | |
846 | end = info->capacity >> (info->blockshift + info->pageshift); | |
847 | end -= zonestart; | |
848 | if (end > 1024) | |
849 | end = 1024; | |
850 | ||
851 | for (i = lastpba+1; i < end; i++) { | |
852 | if (info->pba_to_lba[zonestart+i] == UNDEF) { | |
853 | lastpba = i; | |
854 | return zonestart+i; | |
855 | } | |
856 | } | |
857 | for (i = 0; i <= lastpba; i++) { | |
858 | if (info->pba_to_lba[zonestart+i] == UNDEF) { | |
859 | lastpba = i; | |
860 | return zonestart+i; | |
861 | } | |
862 | } | |
863 | return 0; | |
864 | } | |
865 | ||
866 | static int | |
867 | sddr09_write_lba(struct us_data *us, unsigned int lba, | |
868 | unsigned int page, unsigned int pages, | |
869 | unsigned char *ptr, unsigned char *blockbuffer) { | |
870 | ||
871 | struct sddr09_card_info *info = (struct sddr09_card_info *) us->extra; | |
872 | unsigned long address; | |
873 | unsigned int pba, lbap; | |
874 | unsigned int pagelen; | |
875 | unsigned char *bptr, *cptr, *xptr; | |
876 | unsigned char ecc[3]; | |
877 | int i, result, isnew; | |
878 | ||
879 | lbap = ((lba % 1000) << 1) | 0x1000; | |
880 | if (parity[MSB_of(lbap) ^ LSB_of(lbap)]) | |
881 | lbap ^= 1; | |
882 | pba = info->lba_to_pba[lba]; | |
883 | isnew = 0; | |
884 | ||
885 | if (pba == UNDEF) { | |
886 | pba = sddr09_find_unused_pba(info, lba); | |
887 | if (!pba) { | |
6f8aa65b FS |
888 | printk(KERN_WARNING |
889 | "sddr09_write_lba: Out of unused blocks\n"); | |
0dc08a35 | 890 | return -ENOSPC; |
1da177e4 LT |
891 | } |
892 | info->pba_to_lba[pba] = lba; | |
893 | info->lba_to_pba[lba] = pba; | |
894 | isnew = 1; | |
895 | } | |
896 | ||
897 | if (pba == 1) { | |
898 | /* Maybe it is impossible to write to PBA 1. | |
899 | Fake success, but don't do anything. */ | |
6f8aa65b | 900 | printk(KERN_WARNING "sddr09: avoid writing to pba 1\n"); |
0dc08a35 | 901 | return 0; |
1da177e4 LT |
902 | } |
903 | ||
904 | pagelen = (1 << info->pageshift) + (1 << CONTROL_SHIFT); | |
905 | ||
906 | /* read old contents */ | |
907 | address = (pba << (info->pageshift + info->blockshift)); | |
908 | result = sddr09_read22(us, address>>1, info->blocksize, | |
909 | info->pageshift, blockbuffer, 0); | |
0dc08a35 | 910 | if (result) |
1da177e4 LT |
911 | return result; |
912 | ||
913 | /* check old contents and fill lba */ | |
914 | for (i = 0; i < info->blocksize; i++) { | |
915 | bptr = blockbuffer + i*pagelen; | |
916 | cptr = bptr + info->pagesize; | |
917 | nand_compute_ecc(bptr, ecc); | |
918 | if (!nand_compare_ecc(cptr+13, ecc)) { | |
919 | US_DEBUGP("Warning: bad ecc in page %d- of pba %d\n", | |
920 | i, pba); | |
921 | nand_store_ecc(cptr+13, ecc); | |
922 | } | |
923 | nand_compute_ecc(bptr+(info->pagesize / 2), ecc); | |
924 | if (!nand_compare_ecc(cptr+8, ecc)) { | |
925 | US_DEBUGP("Warning: bad ecc in page %d+ of pba %d\n", | |
926 | i, pba); | |
927 | nand_store_ecc(cptr+8, ecc); | |
928 | } | |
929 | cptr[6] = cptr[11] = MSB_of(lbap); | |
930 | cptr[7] = cptr[12] = LSB_of(lbap); | |
931 | } | |
932 | ||
933 | /* copy in new stuff and compute ECC */ | |
934 | xptr = ptr; | |
935 | for (i = page; i < page+pages; i++) { | |
936 | bptr = blockbuffer + i*pagelen; | |
937 | cptr = bptr + info->pagesize; | |
938 | memcpy(bptr, xptr, info->pagesize); | |
939 | xptr += info->pagesize; | |
940 | nand_compute_ecc(bptr, ecc); | |
941 | nand_store_ecc(cptr+13, ecc); | |
942 | nand_compute_ecc(bptr+(info->pagesize / 2), ecc); | |
943 | nand_store_ecc(cptr+8, ecc); | |
944 | } | |
945 | ||
946 | US_DEBUGP("Rewrite PBA %d (LBA %d)\n", pba, lba); | |
947 | ||
948 | result = sddr09_write_inplace(us, address>>1, info->blocksize, | |
949 | info->pageshift, blockbuffer, 0); | |
950 | ||
951 | US_DEBUGP("sddr09_write_inplace returns %d\n", result); | |
952 | ||
953 | #if 0 | |
954 | { | |
955 | unsigned char status = 0; | |
956 | int result2 = sddr09_read_status(us, &status); | |
0dc08a35 | 957 | if (result2) |
1da177e4 LT |
958 | US_DEBUGP("sddr09_write_inplace: cannot read status\n"); |
959 | else if (status != 0xc0) | |
960 | US_DEBUGP("sddr09_write_inplace: status after write: 0x%x\n", | |
961 | status); | |
962 | } | |
963 | #endif | |
964 | ||
965 | #if 0 | |
966 | { | |
967 | int result2 = sddr09_test_unit_ready(us); | |
968 | } | |
969 | #endif | |
970 | ||
971 | return result; | |
972 | } | |
973 | ||
974 | static int | |
975 | sddr09_write_data(struct us_data *us, | |
976 | unsigned long address, | |
977 | unsigned int sectors) { | |
978 | ||
979 | struct sddr09_card_info *info = (struct sddr09_card_info *) us->extra; | |
a6c976c6 | 980 | unsigned int lba, maxlba, page, pages; |
1da177e4 LT |
981 | unsigned int pagelen, blocklen; |
982 | unsigned char *blockbuffer; | |
983 | unsigned char *buffer; | |
1f6f31a0 JA |
984 | unsigned int len, offset; |
985 | struct scatterlist *sg; | |
1da177e4 LT |
986 | int result; |
987 | ||
a6c976c6 MD |
988 | // Figure out the initial LBA and page |
989 | lba = address >> info->blockshift; | |
990 | page = (address & info->blockmask); | |
991 | maxlba = info->capacity >> (info->pageshift + info->blockshift); | |
992 | if (lba >= maxlba) | |
993 | return -EIO; | |
994 | ||
1da177e4 LT |
995 | // blockbuffer is used for reading in the old data, overwriting |
996 | // with the new data, and performing ECC calculations | |
997 | ||
998 | /* TODO: instead of doing kmalloc/kfree for each write, | |
999 | add a bufferpointer to the info structure */ | |
1000 | ||
1001 | pagelen = (1 << info->pageshift) + (1 << CONTROL_SHIFT); | |
1002 | blocklen = (pagelen << info->blockshift); | |
1003 | blockbuffer = kmalloc(blocklen, GFP_NOIO); | |
1004 | if (!blockbuffer) { | |
6f8aa65b | 1005 | printk(KERN_WARNING "sddr09_write_data: Out of memory\n"); |
0dc08a35 | 1006 | return -ENOMEM; |
1da177e4 LT |
1007 | } |
1008 | ||
1009 | // Since we don't write the user data directly to the device, | |
1010 | // we have to create a bounce buffer and move the data a piece | |
1011 | // at a time between the bounce buffer and the actual transfer buffer. | |
1012 | ||
1013 | len = min(sectors, (unsigned int) info->blocksize) * info->pagesize; | |
1014 | buffer = kmalloc(len, GFP_NOIO); | |
1015 | if (buffer == NULL) { | |
6f8aa65b | 1016 | printk(KERN_WARNING "sddr09_write_data: Out of memory\n"); |
1da177e4 | 1017 | kfree(blockbuffer); |
0dc08a35 | 1018 | return -ENOMEM; |
1da177e4 LT |
1019 | } |
1020 | ||
0dc08a35 | 1021 | result = 0; |
1f6f31a0 JA |
1022 | offset = 0; |
1023 | sg = NULL; | |
1da177e4 LT |
1024 | |
1025 | while (sectors > 0) { | |
1026 | ||
1027 | // Write as many sectors as possible in this block | |
1028 | ||
1029 | pages = min(sectors, info->blocksize - page); | |
1030 | len = (pages << info->pageshift); | |
1031 | ||
a6c976c6 MD |
1032 | /* Not overflowing capacity? */ |
1033 | if (lba >= maxlba) { | |
1034 | US_DEBUGP("Error: Requested lba %u exceeds " | |
1035 | "maximum %u\n", lba, maxlba); | |
1036 | result = -EIO; | |
1037 | break; | |
1038 | } | |
1039 | ||
1da177e4 LT |
1040 | // Get the data from the transfer buffer |
1041 | usb_stor_access_xfer_buf(buffer, len, us->srb, | |
1f6f31a0 | 1042 | &sg, &offset, FROM_XFER_BUF); |
1da177e4 LT |
1043 | |
1044 | result = sddr09_write_lba(us, lba, page, pages, | |
1045 | buffer, blockbuffer); | |
0dc08a35 | 1046 | if (result) |
1da177e4 LT |
1047 | break; |
1048 | ||
1049 | page = 0; | |
1050 | lba++; | |
1051 | sectors -= pages; | |
1052 | } | |
1053 | ||
1054 | kfree(buffer); | |
1055 | kfree(blockbuffer); | |
1056 | ||
1057 | return result; | |
1058 | } | |
1059 | ||
1060 | static int | |
1061 | sddr09_read_control(struct us_data *us, | |
1062 | unsigned long address, | |
1063 | unsigned int blocks, | |
1064 | unsigned char *content, | |
1065 | int use_sg) { | |
1066 | ||
1067 | US_DEBUGP("Read control address %lu, blocks %d\n", | |
1068 | address, blocks); | |
1069 | ||
1070 | return sddr09_read21(us, address, blocks, | |
1071 | CONTROL_SHIFT, content, use_sg); | |
1072 | } | |
1073 | ||
1074 | /* | |
1075 | * Read Device ID Command: 12 bytes. | |
1076 | * byte 0: opcode: ED | |
1077 | * | |
1078 | * Returns 2 bytes: Manufacturer ID and Device ID. | |
1079 | * On more recent cards 3 bytes: the third byte is an option code A5 | |
1080 | * signifying that the secret command to read an 128-bit ID is available. | |
1081 | * On still more recent cards 4 bytes: the fourth byte C0 means that | |
1082 | * a second read ID cmd is available. | |
1083 | */ | |
1084 | static int | |
1085 | sddr09_read_deviceID(struct us_data *us, unsigned char *deviceID) { | |
1086 | unsigned char *command = us->iobuf; | |
1087 | unsigned char *content = us->iobuf; | |
1088 | int result, i; | |
1089 | ||
1090 | memset(command, 0, 12); | |
1091 | command[0] = 0xED; | |
1092 | command[1] = LUNBITS; | |
1093 | ||
1094 | result = sddr09_send_scsi_command(us, command, 12); | |
0dc08a35 | 1095 | if (result) |
1da177e4 LT |
1096 | return result; |
1097 | ||
1098 | result = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe, | |
1099 | content, 64, NULL); | |
1100 | ||
1101 | for (i = 0; i < 4; i++) | |
1102 | deviceID[i] = content[i]; | |
1103 | ||
0dc08a35 | 1104 | return (result == USB_STOR_XFER_GOOD ? 0 : -EIO); |
1da177e4 LT |
1105 | } |
1106 | ||
1107 | static int | |
1108 | sddr09_get_wp(struct us_data *us, struct sddr09_card_info *info) { | |
1109 | int result; | |
1110 | unsigned char status; | |
1111 | ||
1112 | result = sddr09_read_status(us, &status); | |
0dc08a35 | 1113 | if (result) { |
1da177e4 LT |
1114 | US_DEBUGP("sddr09_get_wp: read_status fails\n"); |
1115 | return result; | |
1116 | } | |
1117 | US_DEBUGP("sddr09_get_wp: status 0x%02X", status); | |
1118 | if ((status & 0x80) == 0) { | |
1119 | info->flags |= SDDR09_WP; /* write protected */ | |
1120 | US_DEBUGP(" WP"); | |
1121 | } | |
1122 | if (status & 0x40) | |
1123 | US_DEBUGP(" Ready"); | |
1124 | if (status & LUNBITS) | |
1125 | US_DEBUGP(" Suspended"); | |
1126 | if (status & 0x1) | |
1127 | US_DEBUGP(" Error"); | |
1128 | US_DEBUGP("\n"); | |
0dc08a35 | 1129 | return 0; |
1da177e4 LT |
1130 | } |
1131 | ||
1132 | #if 0 | |
1133 | /* | |
1134 | * Reset Command: 12 bytes. | |
1135 | * byte 0: opcode: EB | |
1136 | */ | |
1137 | static int | |
1138 | sddr09_reset(struct us_data *us) { | |
1139 | ||
1140 | unsigned char *command = us->iobuf; | |
1141 | ||
1142 | memset(command, 0, 12); | |
1143 | command[0] = 0xEB; | |
1144 | command[1] = LUNBITS; | |
1145 | ||
1146 | return sddr09_send_scsi_command(us, command, 12); | |
1147 | } | |
1148 | #endif | |
1149 | ||
1150 | static struct nand_flash_dev * | |
1151 | sddr09_get_cardinfo(struct us_data *us, unsigned char flags) { | |
1152 | struct nand_flash_dev *cardinfo; | |
1153 | unsigned char deviceID[4]; | |
1154 | char blurbtxt[256]; | |
1155 | int result; | |
1156 | ||
1157 | US_DEBUGP("Reading capacity...\n"); | |
1158 | ||
1159 | result = sddr09_read_deviceID(us, deviceID); | |
1160 | ||
0dc08a35 | 1161 | if (result) { |
1da177e4 | 1162 | US_DEBUGP("Result of read_deviceID is %d\n", result); |
6f8aa65b | 1163 | printk(KERN_WARNING "sddr09: could not read card info\n"); |
1da177e4 LT |
1164 | return NULL; |
1165 | } | |
1166 | ||
1167 | sprintf(blurbtxt, "sddr09: Found Flash card, ID = %02X %02X %02X %02X", | |
1168 | deviceID[0], deviceID[1], deviceID[2], deviceID[3]); | |
1169 | ||
1170 | /* Byte 0 is the manufacturer */ | |
1171 | sprintf(blurbtxt + strlen(blurbtxt), | |
1172 | ": Manuf. %s", | |
1173 | nand_flash_manufacturer(deviceID[0])); | |
1174 | ||
1175 | /* Byte 1 is the device type */ | |
1176 | cardinfo = nand_find_id(deviceID[1]); | |
1177 | if (cardinfo) { | |
1178 | /* MB or MiB? It is neither. A 16 MB card has | |
1179 | 17301504 raw bytes, of which 16384000 are | |
1180 | usable for user data. */ | |
1181 | sprintf(blurbtxt + strlen(blurbtxt), | |
1182 | ", %d MB", 1<<(cardinfo->chipshift - 20)); | |
1183 | } else { | |
1184 | sprintf(blurbtxt + strlen(blurbtxt), | |
1185 | ", type unrecognized"); | |
1186 | } | |
1187 | ||
1188 | /* Byte 2 is code to signal availability of 128-bit ID */ | |
1189 | if (deviceID[2] == 0xa5) { | |
1190 | sprintf(blurbtxt + strlen(blurbtxt), | |
1191 | ", 128-bit ID"); | |
1192 | } | |
1193 | ||
1194 | /* Byte 3 announces the availability of another read ID command */ | |
1195 | if (deviceID[3] == 0xc0) { | |
1196 | sprintf(blurbtxt + strlen(blurbtxt), | |
1197 | ", extra cmd"); | |
1198 | } | |
1199 | ||
1200 | if (flags & SDDR09_WP) | |
1201 | sprintf(blurbtxt + strlen(blurbtxt), | |
1202 | ", WP"); | |
1203 | ||
6f8aa65b | 1204 | printk(KERN_WARNING "%s\n", blurbtxt); |
1da177e4 LT |
1205 | |
1206 | return cardinfo; | |
1207 | } | |
1208 | ||
1209 | static int | |
1210 | sddr09_read_map(struct us_data *us) { | |
1211 | ||
1212 | struct sddr09_card_info *info = (struct sddr09_card_info *) us->extra; | |
1213 | int numblocks, alloc_len, alloc_blocks; | |
1214 | int i, j, result; | |
1215 | unsigned char *buffer, *buffer_end, *ptr; | |
1216 | unsigned int lba, lbact; | |
1217 | ||
1218 | if (!info->capacity) | |
1219 | return -1; | |
1220 | ||
1221 | // size of a block is 1 << (blockshift + pageshift) bytes | |
1222 | // divide into the total capacity to get the number of blocks | |
1223 | ||
1224 | numblocks = info->capacity >> (info->blockshift + info->pageshift); | |
1225 | ||
1226 | // read 64 bytes for every block (actually 1 << CONTROL_SHIFT) | |
1227 | // but only use a 64 KB buffer | |
1228 | // buffer size used must be a multiple of (1 << CONTROL_SHIFT) | |
1229 | #define SDDR09_READ_MAP_BUFSZ 65536 | |
1230 | ||
1231 | alloc_blocks = min(numblocks, SDDR09_READ_MAP_BUFSZ >> CONTROL_SHIFT); | |
1232 | alloc_len = (alloc_blocks << CONTROL_SHIFT); | |
1233 | buffer = kmalloc(alloc_len, GFP_NOIO); | |
1234 | if (buffer == NULL) { | |
6f8aa65b | 1235 | printk(KERN_WARNING "sddr09_read_map: out of memory\n"); |
1da177e4 LT |
1236 | result = -1; |
1237 | goto done; | |
1238 | } | |
1239 | buffer_end = buffer + alloc_len; | |
1240 | ||
1241 | #undef SDDR09_READ_MAP_BUFSZ | |
1242 | ||
1243 | kfree(info->lba_to_pba); | |
1244 | kfree(info->pba_to_lba); | |
1245 | info->lba_to_pba = kmalloc(numblocks*sizeof(int), GFP_NOIO); | |
1246 | info->pba_to_lba = kmalloc(numblocks*sizeof(int), GFP_NOIO); | |
1247 | ||
1248 | if (info->lba_to_pba == NULL || info->pba_to_lba == NULL) { | |
6f8aa65b | 1249 | printk(KERN_WARNING "sddr09_read_map: out of memory\n"); |
1da177e4 LT |
1250 | result = -1; |
1251 | goto done; | |
1252 | } | |
1253 | ||
1254 | for (i = 0; i < numblocks; i++) | |
1255 | info->lba_to_pba[i] = info->pba_to_lba[i] = UNDEF; | |
1256 | ||
1257 | /* | |
1258 | * Define lba-pba translation table | |
1259 | */ | |
1260 | ||
1261 | ptr = buffer_end; | |
1262 | for (i = 0; i < numblocks; i++) { | |
1263 | ptr += (1 << CONTROL_SHIFT); | |
1264 | if (ptr >= buffer_end) { | |
1265 | unsigned long address; | |
1266 | ||
1267 | address = i << (info->pageshift + info->blockshift); | |
1268 | result = sddr09_read_control( | |
1269 | us, address>>1, | |
1270 | min(alloc_blocks, numblocks - i), | |
1271 | buffer, 0); | |
0dc08a35 | 1272 | if (result) { |
1da177e4 LT |
1273 | result = -1; |
1274 | goto done; | |
1275 | } | |
1276 | ptr = buffer; | |
1277 | } | |
1278 | ||
1279 | if (i == 0 || i == 1) { | |
1280 | info->pba_to_lba[i] = UNUSABLE; | |
1281 | continue; | |
1282 | } | |
1283 | ||
1284 | /* special PBAs have control field 0^16 */ | |
1285 | for (j = 0; j < 16; j++) | |
1286 | if (ptr[j] != 0) | |
1287 | goto nonz; | |
1288 | info->pba_to_lba[i] = UNUSABLE; | |
6f8aa65b FS |
1289 | printk(KERN_WARNING "sddr09: PBA %d has no logical mapping\n", |
1290 | i); | |
1da177e4 LT |
1291 | continue; |
1292 | ||
1293 | nonz: | |
1294 | /* unwritten PBAs have control field FF^16 */ | |
1295 | for (j = 0; j < 16; j++) | |
1296 | if (ptr[j] != 0xff) | |
1297 | goto nonff; | |
1298 | continue; | |
1299 | ||
1300 | nonff: | |
1301 | /* normal PBAs start with six FFs */ | |
1302 | if (j < 6) { | |
6f8aa65b FS |
1303 | printk(KERN_WARNING |
1304 | "sddr09: PBA %d has no logical mapping: " | |
1da177e4 LT |
1305 | "reserved area = %02X%02X%02X%02X " |
1306 | "data status %02X block status %02X\n", | |
1307 | i, ptr[0], ptr[1], ptr[2], ptr[3], | |
1308 | ptr[4], ptr[5]); | |
1309 | info->pba_to_lba[i] = UNUSABLE; | |
1310 | continue; | |
1311 | } | |
1312 | ||
1313 | if ((ptr[6] >> 4) != 0x01) { | |
6f8aa65b FS |
1314 | printk(KERN_WARNING |
1315 | "sddr09: PBA %d has invalid address field " | |
1da177e4 LT |
1316 | "%02X%02X/%02X%02X\n", |
1317 | i, ptr[6], ptr[7], ptr[11], ptr[12]); | |
1318 | info->pba_to_lba[i] = UNUSABLE; | |
1319 | continue; | |
1320 | } | |
1321 | ||
1322 | /* check even parity */ | |
1323 | if (parity[ptr[6] ^ ptr[7]]) { | |
6f8aa65b FS |
1324 | printk(KERN_WARNING |
1325 | "sddr09: Bad parity in LBA for block %d" | |
1da177e4 LT |
1326 | " (%02X %02X)\n", i, ptr[6], ptr[7]); |
1327 | info->pba_to_lba[i] = UNUSABLE; | |
1328 | continue; | |
1329 | } | |
1330 | ||
1331 | lba = short_pack(ptr[7], ptr[6]); | |
1332 | lba = (lba & 0x07FF) >> 1; | |
1333 | ||
1334 | /* | |
1335 | * Every 1024 physical blocks ("zone"), the LBA numbers | |
1336 | * go back to zero, but are within a higher block of LBA's. | |
1337 | * Also, there is a maximum of 1000 LBA's per zone. | |
1338 | * In other words, in PBA 1024-2047 you will find LBA 0-999 | |
1339 | * which are really LBA 1000-1999. This allows for 24 bad | |
1340 | * or special physical blocks per zone. | |
1341 | */ | |
1342 | ||
1343 | if (lba >= 1000) { | |
6f8aa65b FS |
1344 | printk(KERN_WARNING |
1345 | "sddr09: Bad low LBA %d for block %d\n", | |
1da177e4 LT |
1346 | lba, i); |
1347 | goto possibly_erase; | |
1348 | } | |
1349 | ||
1350 | lba += 1000*(i/0x400); | |
1351 | ||
1352 | if (info->lba_to_pba[lba] != UNDEF) { | |
6f8aa65b FS |
1353 | printk(KERN_WARNING |
1354 | "sddr09: LBA %d seen for PBA %d and %d\n", | |
1da177e4 LT |
1355 | lba, info->lba_to_pba[lba], i); |
1356 | goto possibly_erase; | |
1357 | } | |
1358 | ||
1359 | info->pba_to_lba[i] = lba; | |
1360 | info->lba_to_pba[lba] = i; | |
1361 | continue; | |
1362 | ||
1363 | possibly_erase: | |
1364 | if (erase_bad_lba_entries) { | |
1365 | unsigned long address; | |
1366 | ||
1367 | address = (i << (info->pageshift + info->blockshift)); | |
1368 | sddr09_erase(us, address>>1); | |
1369 | info->pba_to_lba[i] = UNDEF; | |
1370 | } else | |
1371 | info->pba_to_lba[i] = UNUSABLE; | |
1372 | } | |
1373 | ||
1374 | /* | |
1375 | * Approximate capacity. This is not entirely correct yet, | |
1376 | * since a zone with less than 1000 usable pages leads to | |
1377 | * missing LBAs. Especially if it is the last zone, some | |
1378 | * LBAs can be past capacity. | |
1379 | */ | |
1380 | lbact = 0; | |
1381 | for (i = 0; i < numblocks; i += 1024) { | |
1382 | int ct = 0; | |
1383 | ||
1384 | for (j = 0; j < 1024 && i+j < numblocks; j++) { | |
1385 | if (info->pba_to_lba[i+j] != UNUSABLE) { | |
1386 | if (ct >= 1000) | |
1387 | info->pba_to_lba[i+j] = SPARE; | |
1388 | else | |
1389 | ct++; | |
1390 | } | |
1391 | } | |
1392 | lbact += ct; | |
1393 | } | |
1394 | info->lbact = lbact; | |
1395 | US_DEBUGP("Found %d LBA's\n", lbact); | |
1396 | result = 0; | |
1397 | ||
1398 | done: | |
1399 | if (result != 0) { | |
1400 | kfree(info->lba_to_pba); | |
1401 | kfree(info->pba_to_lba); | |
1402 | info->lba_to_pba = NULL; | |
1403 | info->pba_to_lba = NULL; | |
1404 | } | |
1405 | kfree(buffer); | |
1406 | return result; | |
1407 | } | |
1408 | ||
1409 | static void | |
1410 | sddr09_card_info_destructor(void *extra) { | |
1411 | struct sddr09_card_info *info = (struct sddr09_card_info *)extra; | |
1412 | ||
1413 | if (!info) | |
1414 | return; | |
1415 | ||
1416 | kfree(info->lba_to_pba); | |
1417 | kfree(info->pba_to_lba); | |
1418 | } | |
1419 | ||
f5b8cb9c MD |
1420 | static int |
1421 | sddr09_common_init(struct us_data *us) { | |
1422 | int result; | |
1423 | ||
1424 | /* set the configuration -- STALL is an acceptable response here */ | |
1425 | if (us->pusb_dev->actconfig->desc.bConfigurationValue != 1) { | |
1426 | US_DEBUGP("active config #%d != 1 ??\n", us->pusb_dev | |
1427 | ->actconfig->desc.bConfigurationValue); | |
1428 | return -EINVAL; | |
1429 | } | |
1430 | ||
1431 | result = usb_reset_configuration(us->pusb_dev); | |
1432 | US_DEBUGP("Result of usb_reset_configuration is %d\n", result); | |
1433 | if (result == -EPIPE) { | |
1434 | US_DEBUGP("-- stall on control interface\n"); | |
1435 | } else if (result != 0) { | |
1436 | /* it's not a stall, but another error -- time to bail */ | |
1437 | US_DEBUGP("-- Unknown error. Rejecting device\n"); | |
1438 | return -EINVAL; | |
1da177e4 | 1439 | } |
f5b8cb9c MD |
1440 | |
1441 | us->extra = kzalloc(sizeof(struct sddr09_card_info), GFP_NOIO); | |
1442 | if (!us->extra) | |
1443 | return -ENOMEM; | |
1444 | us->extra_destructor = sddr09_card_info_destructor; | |
1445 | ||
1446 | nand_init_ecc(); | |
1447 | return 0; | |
1da177e4 LT |
1448 | } |
1449 | ||
f5b8cb9c | 1450 | |
1da177e4 LT |
1451 | /* |
1452 | * This is needed at a very early stage. If this is not listed in the | |
1453 | * unusual devices list but called from here then LUN 0 of the combo reader | |
1454 | * is not recognized. But I do not know what precisely these calls do. | |
1455 | */ | |
0ff71883 | 1456 | static int |
f5b8cb9c | 1457 | usb_stor_sddr09_dpcm_init(struct us_data *us) { |
1da177e4 LT |
1458 | int result; |
1459 | unsigned char *data = us->iobuf; | |
1460 | ||
f5b8cb9c MD |
1461 | result = sddr09_common_init(us); |
1462 | if (result) | |
1463 | return result; | |
1464 | ||
1da177e4 | 1465 | result = sddr09_send_command(us, 0x01, USB_DIR_IN, data, 2); |
0dc08a35 | 1466 | if (result) { |
1da177e4 LT |
1467 | US_DEBUGP("sddr09_init: send_command fails\n"); |
1468 | return result; | |
1469 | } | |
1470 | ||
1471 | US_DEBUGP("SDDR09init: %02X %02X\n", data[0], data[1]); | |
1472 | // get 07 02 | |
1473 | ||
1474 | result = sddr09_send_command(us, 0x08, USB_DIR_IN, data, 2); | |
0dc08a35 | 1475 | if (result) { |
1da177e4 LT |
1476 | US_DEBUGP("sddr09_init: 2nd send_command fails\n"); |
1477 | return result; | |
1478 | } | |
1479 | ||
1480 | US_DEBUGP("SDDR09init: %02X %02X\n", data[0], data[1]); | |
1481 | // get 07 00 | |
1482 | ||
1483 | result = sddr09_request_sense(us, data, 18); | |
0dc08a35 | 1484 | if (result == 0 && data[2] != 0) { |
1da177e4 LT |
1485 | int j; |
1486 | for (j=0; j<18; j++) | |
1487 | printk(" %02X", data[j]); | |
1488 | printk("\n"); | |
1489 | // get 70 00 00 00 00 00 00 * 00 00 00 00 00 00 | |
1490 | // 70: current command | |
1491 | // sense key 0, sense code 0, extd sense code 0 | |
1492 | // additional transfer length * = sizeof(data) - 7 | |
1493 | // Or: 70 00 06 00 00 00 00 0b 00 00 00 00 28 00 00 00 00 00 | |
1494 | // sense key 06, sense code 28: unit attention, | |
1495 | // not ready to ready transition | |
1496 | } | |
1497 | ||
1498 | // test unit ready | |
1499 | ||
f5b8cb9c | 1500 | return 0; /* not result */ |
1da177e4 LT |
1501 | } |
1502 | ||
c20b15fd AS |
1503 | /* |
1504 | * Transport for the Microtech DPCM-USB | |
1505 | */ | |
0ff71883 | 1506 | static int dpcm_transport(struct scsi_cmnd *srb, struct us_data *us) |
c20b15fd AS |
1507 | { |
1508 | int ret; | |
1509 | ||
1510 | US_DEBUGP("dpcm_transport: LUN=%d\n", srb->device->lun); | |
1511 | ||
1512 | switch (srb->device->lun) { | |
1513 | case 0: | |
1514 | ||
1515 | /* | |
1516 | * LUN 0 corresponds to the CompactFlash card reader. | |
1517 | */ | |
1518 | ret = usb_stor_CB_transport(srb, us); | |
1519 | break; | |
1520 | ||
1521 | case 1: | |
1522 | ||
1523 | /* | |
1524 | * LUN 1 corresponds to the SmartMedia card reader. | |
1525 | */ | |
1526 | ||
1527 | /* | |
1528 | * Set the LUN to 0 (just in case). | |
1529 | */ | |
1530 | srb->device->lun = 0; | |
1531 | ret = sddr09_transport(srb, us); | |
1532 | srb->device->lun = 1; | |
1533 | break; | |
1534 | ||
1535 | default: | |
1536 | US_DEBUGP("dpcm_transport: Invalid LUN %d\n", | |
1537 | srb->device->lun); | |
1538 | ret = USB_STOR_TRANSPORT_ERROR; | |
1539 | break; | |
1540 | } | |
1541 | return ret; | |
1542 | } | |
1543 | ||
1544 | ||
1da177e4 LT |
1545 | /* |
1546 | * Transport for the Sandisk SDDR-09 | |
1547 | */ | |
0ff71883 | 1548 | static int sddr09_transport(struct scsi_cmnd *srb, struct us_data *us) |
1da177e4 LT |
1549 | { |
1550 | static unsigned char sensekey = 0, sensecode = 0; | |
1551 | static unsigned char havefakesense = 0; | |
1552 | int result, i; | |
1553 | unsigned char *ptr = us->iobuf; | |
1554 | unsigned long capacity; | |
1555 | unsigned int page, pages; | |
1556 | ||
1557 | struct sddr09_card_info *info; | |
1558 | ||
1559 | static unsigned char inquiry_response[8] = { | |
1560 | 0x00, 0x80, 0x00, 0x02, 0x1F, 0x00, 0x00, 0x00 | |
1561 | }; | |
1562 | ||
1563 | /* note: no block descriptor support */ | |
1564 | static unsigned char mode_page_01[19] = { | |
1565 | 0x00, 0x0F, 0x00, 0x0, 0x0, 0x0, 0x00, | |
1566 | 0x01, 0x0A, | |
1567 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 | |
1568 | }; | |
1569 | ||
1570 | info = (struct sddr09_card_info *)us->extra; | |
1da177e4 LT |
1571 | |
1572 | if (srb->cmnd[0] == REQUEST_SENSE && havefakesense) { | |
1573 | /* for a faked command, we have to follow with a faked sense */ | |
1574 | memset(ptr, 0, 18); | |
1575 | ptr[0] = 0x70; | |
1576 | ptr[2] = sensekey; | |
1577 | ptr[7] = 11; | |
1578 | ptr[12] = sensecode; | |
1579 | usb_stor_set_xfer_buf(ptr, 18, srb); | |
1580 | sensekey = sensecode = havefakesense = 0; | |
1581 | return USB_STOR_TRANSPORT_GOOD; | |
1582 | } | |
1583 | ||
1584 | havefakesense = 1; | |
1585 | ||
1586 | /* Dummy up a response for INQUIRY since SDDR09 doesn't | |
1587 | respond to INQUIRY commands */ | |
1588 | ||
1589 | if (srb->cmnd[0] == INQUIRY) { | |
1590 | memcpy(ptr, inquiry_response, 8); | |
1591 | fill_inquiry_response(us, ptr, 36); | |
1592 | return USB_STOR_TRANSPORT_GOOD; | |
1593 | } | |
1594 | ||
1595 | if (srb->cmnd[0] == READ_CAPACITY) { | |
1596 | struct nand_flash_dev *cardinfo; | |
1597 | ||
1598 | sddr09_get_wp(us, info); /* read WP bit */ | |
1599 | ||
1600 | cardinfo = sddr09_get_cardinfo(us, info->flags); | |
1601 | if (!cardinfo) { | |
1602 | /* probably no media */ | |
1603 | init_error: | |
1604 | sensekey = 0x02; /* not ready */ | |
1605 | sensecode = 0x3a; /* medium not present */ | |
1606 | return USB_STOR_TRANSPORT_FAILED; | |
1607 | } | |
1608 | ||
1609 | info->capacity = (1 << cardinfo->chipshift); | |
1610 | info->pageshift = cardinfo->pageshift; | |
1611 | info->pagesize = (1 << info->pageshift); | |
1612 | info->blockshift = cardinfo->blockshift; | |
1613 | info->blocksize = (1 << info->blockshift); | |
1614 | info->blockmask = info->blocksize - 1; | |
1615 | ||
1616 | // map initialization, must follow get_cardinfo() | |
1617 | if (sddr09_read_map(us)) { | |
1618 | /* probably out of memory */ | |
1619 | goto init_error; | |
1620 | } | |
1621 | ||
1622 | // Report capacity | |
1623 | ||
1624 | capacity = (info->lbact << info->blockshift) - 1; | |
1625 | ||
1626 | ((__be32 *) ptr)[0] = cpu_to_be32(capacity); | |
1627 | ||
1628 | // Report page size | |
1629 | ||
1630 | ((__be32 *) ptr)[1] = cpu_to_be32(info->pagesize); | |
1631 | usb_stor_set_xfer_buf(ptr, 8, srb); | |
1632 | ||
1633 | return USB_STOR_TRANSPORT_GOOD; | |
1634 | } | |
1635 | ||
1636 | if (srb->cmnd[0] == MODE_SENSE_10) { | |
1637 | int modepage = (srb->cmnd[2] & 0x3F); | |
1638 | ||
1639 | /* They ask for the Read/Write error recovery page, | |
1640 | or for all pages. */ | |
1641 | /* %% We should check DBD %% */ | |
1642 | if (modepage == 0x01 || modepage == 0x3F) { | |
1643 | US_DEBUGP("SDDR09: Dummy up request for " | |
1644 | "mode page 0x%x\n", modepage); | |
1645 | ||
1646 | memcpy(ptr, mode_page_01, sizeof(mode_page_01)); | |
1647 | ((__be16*)ptr)[0] = cpu_to_be16(sizeof(mode_page_01) - 2); | |
1648 | ptr[3] = (info->flags & SDDR09_WP) ? 0x80 : 0; | |
1649 | usb_stor_set_xfer_buf(ptr, sizeof(mode_page_01), srb); | |
1650 | return USB_STOR_TRANSPORT_GOOD; | |
1651 | } | |
1652 | ||
1653 | sensekey = 0x05; /* illegal request */ | |
1654 | sensecode = 0x24; /* invalid field in CDB */ | |
1655 | return USB_STOR_TRANSPORT_FAILED; | |
1656 | } | |
1657 | ||
1658 | if (srb->cmnd[0] == ALLOW_MEDIUM_REMOVAL) | |
1659 | return USB_STOR_TRANSPORT_GOOD; | |
1660 | ||
1661 | havefakesense = 0; | |
1662 | ||
1663 | if (srb->cmnd[0] == READ_10) { | |
1664 | ||
1665 | page = short_pack(srb->cmnd[3], srb->cmnd[2]); | |
1666 | page <<= 16; | |
1667 | page |= short_pack(srb->cmnd[5], srb->cmnd[4]); | |
1668 | pages = short_pack(srb->cmnd[8], srb->cmnd[7]); | |
1669 | ||
1670 | US_DEBUGP("READ_10: read page %d pagect %d\n", | |
1671 | page, pages); | |
1672 | ||
0dc08a35 MD |
1673 | result = sddr09_read_data(us, page, pages); |
1674 | return (result == 0 ? USB_STOR_TRANSPORT_GOOD : | |
1675 | USB_STOR_TRANSPORT_ERROR); | |
1da177e4 LT |
1676 | } |
1677 | ||
1678 | if (srb->cmnd[0] == WRITE_10) { | |
1679 | ||
1680 | page = short_pack(srb->cmnd[3], srb->cmnd[2]); | |
1681 | page <<= 16; | |
1682 | page |= short_pack(srb->cmnd[5], srb->cmnd[4]); | |
1683 | pages = short_pack(srb->cmnd[8], srb->cmnd[7]); | |
1684 | ||
1685 | US_DEBUGP("WRITE_10: write page %d pagect %d\n", | |
1686 | page, pages); | |
1687 | ||
0dc08a35 MD |
1688 | result = sddr09_write_data(us, page, pages); |
1689 | return (result == 0 ? USB_STOR_TRANSPORT_GOOD : | |
1690 | USB_STOR_TRANSPORT_ERROR); | |
1da177e4 LT |
1691 | } |
1692 | ||
1693 | /* catch-all for all other commands, except | |
1694 | * pass TEST_UNIT_READY and REQUEST_SENSE through | |
1695 | */ | |
1696 | if (srb->cmnd[0] != TEST_UNIT_READY && | |
1697 | srb->cmnd[0] != REQUEST_SENSE) { | |
1698 | sensekey = 0x05; /* illegal request */ | |
1699 | sensecode = 0x20; /* invalid command */ | |
1700 | havefakesense = 1; | |
1701 | return USB_STOR_TRANSPORT_FAILED; | |
1702 | } | |
1703 | ||
1704 | for (; srb->cmd_len<12; srb->cmd_len++) | |
1705 | srb->cmnd[srb->cmd_len] = 0; | |
1706 | ||
1707 | srb->cmnd[1] = LUNBITS; | |
1708 | ||
1709 | ptr[0] = 0; | |
1710 | for (i=0; i<12; i++) | |
1711 | sprintf(ptr+strlen(ptr), "%02X ", srb->cmnd[i]); | |
1712 | ||
1713 | US_DEBUGP("SDDR09: Send control for command %s\n", ptr); | |
1714 | ||
1715 | result = sddr09_send_scsi_command(us, srb->cmnd, 12); | |
0dc08a35 | 1716 | if (result) { |
1da177e4 LT |
1717 | US_DEBUGP("sddr09_transport: sddr09_send_scsi_command " |
1718 | "returns %d\n", result); | |
0dc08a35 | 1719 | return USB_STOR_TRANSPORT_ERROR; |
1da177e4 LT |
1720 | } |
1721 | ||
41c2497b | 1722 | if (scsi_bufflen(srb) == 0) |
1da177e4 LT |
1723 | return USB_STOR_TRANSPORT_GOOD; |
1724 | ||
1725 | if (srb->sc_data_direction == DMA_TO_DEVICE || | |
1726 | srb->sc_data_direction == DMA_FROM_DEVICE) { | |
1727 | unsigned int pipe = (srb->sc_data_direction == DMA_TO_DEVICE) | |
1728 | ? us->send_bulk_pipe : us->recv_bulk_pipe; | |
1729 | ||
1730 | US_DEBUGP("SDDR09: %s %d bytes\n", | |
1731 | (srb->sc_data_direction == DMA_TO_DEVICE) ? | |
1732 | "sending" : "receiving", | |
41c2497b | 1733 | scsi_bufflen(srb)); |
1da177e4 | 1734 | |
41c2497b | 1735 | result = usb_stor_bulk_srb(us, pipe, srb); |
1da177e4 LT |
1736 | |
1737 | return (result == USB_STOR_XFER_GOOD ? | |
1738 | USB_STOR_TRANSPORT_GOOD : USB_STOR_TRANSPORT_ERROR); | |
1739 | } | |
1740 | ||
1741 | return USB_STOR_TRANSPORT_GOOD; | |
1742 | } | |
1743 | ||
f5b8cb9c MD |
1744 | /* |
1745 | * Initialization routine for the sddr09 subdriver | |
1746 | */ | |
0ff71883 | 1747 | static int |
f5b8cb9c MD |
1748 | usb_stor_sddr09_init(struct us_data *us) { |
1749 | return sddr09_common_init(us); | |
1750 | } | |
0ff71883 AS |
1751 | |
1752 | static int sddr09_probe(struct usb_interface *intf, | |
1753 | const struct usb_device_id *id) | |
1754 | { | |
1755 | struct us_data *us; | |
1756 | int result; | |
1757 | ||
1758 | result = usb_stor_probe1(&us, intf, id, | |
1759 | (id - sddr09_usb_ids) + sddr09_unusual_dev_list); | |
1760 | if (result) | |
1761 | return result; | |
1762 | ||
1763 | if (us->protocol == US_PR_DPCM_USB) { | |
1764 | us->transport_name = "Control/Bulk-EUSB/SDDR09"; | |
1765 | us->transport = dpcm_transport; | |
1766 | us->transport_reset = usb_stor_CB_reset; | |
1767 | us->max_lun = 1; | |
1768 | } else { | |
1769 | us->transport_name = "EUSB/SDDR09"; | |
1770 | us->transport = sddr09_transport; | |
1771 | us->transport_reset = usb_stor_CB_reset; | |
1772 | us->max_lun = 0; | |
1773 | } | |
1774 | ||
1775 | result = usb_stor_probe2(us); | |
1776 | return result; | |
1777 | } | |
1778 | ||
1779 | static struct usb_driver sddr09_driver = { | |
1780 | .name = "ums-sddr09", | |
1781 | .probe = sddr09_probe, | |
1782 | .disconnect = usb_stor_disconnect, | |
1783 | .suspend = usb_stor_suspend, | |
1784 | .resume = usb_stor_resume, | |
1785 | .reset_resume = usb_stor_reset_resume, | |
1786 | .pre_reset = usb_stor_pre_reset, | |
1787 | .post_reset = usb_stor_post_reset, | |
1788 | .id_table = sddr09_usb_ids, | |
1789 | .soft_unbind = 1, | |
1790 | }; | |
1791 | ||
1792 | static int __init sddr09_init(void) | |
1793 | { | |
1794 | return usb_register(&sddr09_driver); | |
1795 | } | |
1796 | ||
1797 | static void __exit sddr09_exit(void) | |
1798 | { | |
1799 | usb_deregister(&sddr09_driver); | |
1800 | } | |
1801 | ||
1802 | module_init(sddr09_init); | |
1803 | module_exit(sddr09_exit); |