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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), \ | |
f61870ee | 72 | .driver_info = (flags) } |
0ff71883 | 73 | |
6f871f9e | 74 | static struct usb_device_id sddr09_usb_ids[] = { |
0ff71883 AS |
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 | ||
1da177e4 LT |
108 | /* |
109 | * First some stuff that does not belong here: | |
110 | * data on SmartMedia and other cards, completely | |
111 | * unrelated to this driver. | |
112 | * Similar stuff occurs in <linux/mtd/nand_ids.h>. | |
113 | */ | |
114 | ||
115 | struct nand_flash_dev { | |
116 | int model_id; | |
117 | int chipshift; /* 1<<cs bytes total capacity */ | |
118 | char pageshift; /* 1<<ps bytes in a page */ | |
119 | char blockshift; /* 1<<bs pages in an erase block */ | |
120 | char zoneshift; /* 1<<zs blocks in a zone */ | |
121 | /* # of logical blocks is 125/128 of this */ | |
122 | char pageadrlen; /* length of an address in bytes - 1 */ | |
123 | }; | |
124 | ||
125 | /* | |
126 | * NAND Flash Manufacturer ID Codes | |
127 | */ | |
128 | #define NAND_MFR_AMD 0x01 | |
129 | #define NAND_MFR_NATSEMI 0x8f | |
130 | #define NAND_MFR_TOSHIBA 0x98 | |
131 | #define NAND_MFR_SAMSUNG 0xec | |
132 | ||
133 | static inline char *nand_flash_manufacturer(int manuf_id) { | |
134 | switch(manuf_id) { | |
135 | case NAND_MFR_AMD: | |
136 | return "AMD"; | |
137 | case NAND_MFR_NATSEMI: | |
138 | return "NATSEMI"; | |
139 | case NAND_MFR_TOSHIBA: | |
140 | return "Toshiba"; | |
141 | case NAND_MFR_SAMSUNG: | |
142 | return "Samsung"; | |
143 | default: | |
144 | return "unknown"; | |
145 | } | |
146 | } | |
147 | ||
148 | /* | |
149 | * It looks like it is unnecessary to attach manufacturer to the | |
150 | * remaining data: SSFDC prescribes manufacturer-independent id codes. | |
151 | * | |
152 | * 256 MB NAND flash has a 5-byte ID with 2nd byte 0xaa, 0xba, 0xca or 0xda. | |
153 | */ | |
154 | ||
155 | static struct nand_flash_dev nand_flash_ids[] = { | |
156 | /* NAND flash */ | |
157 | { 0x6e, 20, 8, 4, 8, 2}, /* 1 MB */ | |
158 | { 0xe8, 20, 8, 4, 8, 2}, /* 1 MB */ | |
159 | { 0xec, 20, 8, 4, 8, 2}, /* 1 MB */ | |
160 | { 0x64, 21, 8, 4, 9, 2}, /* 2 MB */ | |
161 | { 0xea, 21, 8, 4, 9, 2}, /* 2 MB */ | |
162 | { 0x6b, 22, 9, 4, 9, 2}, /* 4 MB */ | |
163 | { 0xe3, 22, 9, 4, 9, 2}, /* 4 MB */ | |
164 | { 0xe5, 22, 9, 4, 9, 2}, /* 4 MB */ | |
165 | { 0xe6, 23, 9, 4, 10, 2}, /* 8 MB */ | |
166 | { 0x73, 24, 9, 5, 10, 2}, /* 16 MB */ | |
167 | { 0x75, 25, 9, 5, 10, 2}, /* 32 MB */ | |
168 | { 0x76, 26, 9, 5, 10, 3}, /* 64 MB */ | |
169 | { 0x79, 27, 9, 5, 10, 3}, /* 128 MB */ | |
170 | ||
171 | /* MASK ROM */ | |
172 | { 0x5d, 21, 9, 4, 8, 2}, /* 2 MB */ | |
173 | { 0xd5, 22, 9, 4, 9, 2}, /* 4 MB */ | |
174 | { 0xd6, 23, 9, 4, 10, 2}, /* 8 MB */ | |
175 | { 0x57, 24, 9, 4, 11, 2}, /* 16 MB */ | |
176 | { 0x58, 25, 9, 4, 12, 2}, /* 32 MB */ | |
177 | { 0,} | |
178 | }; | |
179 | ||
1da177e4 LT |
180 | static struct nand_flash_dev * |
181 | nand_find_id(unsigned char id) { | |
182 | int i; | |
183 | ||
52950ed4 | 184 | for (i = 0; i < ARRAY_SIZE(nand_flash_ids); i++) |
1da177e4 LT |
185 | if (nand_flash_ids[i].model_id == id) |
186 | return &(nand_flash_ids[i]); | |
187 | return NULL; | |
188 | } | |
189 | ||
190 | /* | |
191 | * ECC computation. | |
192 | */ | |
193 | static unsigned char parity[256]; | |
194 | static unsigned char ecc2[256]; | |
195 | ||
196 | static void nand_init_ecc(void) { | |
197 | int i, j, a; | |
198 | ||
199 | parity[0] = 0; | |
200 | for (i = 1; i < 256; i++) | |
201 | parity[i] = (parity[i&(i-1)] ^ 1); | |
202 | ||
203 | for (i = 0; i < 256; i++) { | |
204 | a = 0; | |
205 | for (j = 0; j < 8; j++) { | |
206 | if (i & (1<<j)) { | |
207 | if ((j & 1) == 0) | |
208 | a ^= 0x04; | |
209 | if ((j & 2) == 0) | |
210 | a ^= 0x10; | |
211 | if ((j & 4) == 0) | |
212 | a ^= 0x40; | |
213 | } | |
214 | } | |
215 | ecc2[i] = ~(a ^ (a<<1) ^ (parity[i] ? 0xa8 : 0)); | |
216 | } | |
217 | } | |
218 | ||
219 | /* compute 3-byte ecc on 256 bytes */ | |
220 | static void nand_compute_ecc(unsigned char *data, unsigned char *ecc) { | |
221 | int i, j, a; | |
4cb4f838 | 222 | unsigned char par = 0, bit, bits[8] = {0}; |
1da177e4 LT |
223 | |
224 | /* collect 16 checksum bits */ | |
225 | for (i = 0; i < 256; i++) { | |
226 | par ^= data[i]; | |
227 | bit = parity[data[i]]; | |
228 | for (j = 0; j < 8; j++) | |
229 | if ((i & (1<<j)) == 0) | |
230 | bits[j] ^= bit; | |
231 | } | |
232 | ||
233 | /* put 4+4+4 = 12 bits in the ecc */ | |
234 | a = (bits[3] << 6) + (bits[2] << 4) + (bits[1] << 2) + bits[0]; | |
235 | ecc[0] = ~(a ^ (a<<1) ^ (parity[par] ? 0xaa : 0)); | |
236 | ||
237 | a = (bits[7] << 6) + (bits[6] << 4) + (bits[5] << 2) + bits[4]; | |
238 | ecc[1] = ~(a ^ (a<<1) ^ (parity[par] ? 0xaa : 0)); | |
239 | ||
240 | ecc[2] = ecc2[par]; | |
241 | } | |
242 | ||
243 | static int nand_compare_ecc(unsigned char *data, unsigned char *ecc) { | |
244 | return (data[0] == ecc[0] && data[1] == ecc[1] && data[2] == ecc[2]); | |
245 | } | |
246 | ||
247 | static void nand_store_ecc(unsigned char *data, unsigned char *ecc) { | |
248 | memcpy(data, ecc, 3); | |
249 | } | |
250 | ||
251 | /* | |
252 | * The actual driver starts here. | |
253 | */ | |
254 | ||
f5b8cb9c MD |
255 | struct sddr09_card_info { |
256 | unsigned long capacity; /* Size of card in bytes */ | |
257 | int pagesize; /* Size of page in bytes */ | |
258 | int pageshift; /* log2 of pagesize */ | |
259 | int blocksize; /* Size of block in pages */ | |
260 | int blockshift; /* log2 of blocksize */ | |
261 | int blockmask; /* 2^blockshift - 1 */ | |
262 | int *lba_to_pba; /* logical to physical map */ | |
263 | int *pba_to_lba; /* physical to logical map */ | |
264 | int lbact; /* number of available pages */ | |
265 | int flags; | |
266 | #define SDDR09_WP 1 /* write protected */ | |
267 | }; | |
268 | ||
1da177e4 LT |
269 | /* |
270 | * On my 16MB card, control blocks have size 64 (16 real control bytes, | |
271 | * and 48 junk bytes). In reality of course the card uses 16 control bytes, | |
272 | * so the reader makes up the remaining 48. Don't know whether these numbers | |
273 | * depend on the card. For now a constant. | |
274 | */ | |
275 | #define CONTROL_SHIFT 6 | |
276 | ||
277 | /* | |
278 | * On my Combo CF/SM reader, the SM reader has LUN 1. | |
279 | * (and things fail with LUN 0). | |
280 | * It seems LUN is irrelevant for others. | |
281 | */ | |
282 | #define LUN 1 | |
283 | #define LUNBITS (LUN << 5) | |
284 | ||
285 | /* | |
286 | * LBA and PBA are unsigned ints. Special values. | |
287 | */ | |
288 | #define UNDEF 0xffffffff | |
289 | #define SPARE 0xfffffffe | |
290 | #define UNUSABLE 0xfffffffd | |
291 | ||
4c4c9432 | 292 | static const int erase_bad_lba_entries = 0; |
1da177e4 LT |
293 | |
294 | /* send vendor interface command (0x41) */ | |
295 | /* called for requests 0, 1, 8 */ | |
296 | static int | |
297 | sddr09_send_command(struct us_data *us, | |
298 | unsigned char request, | |
299 | unsigned char direction, | |
300 | unsigned char *xfer_data, | |
301 | unsigned int xfer_len) { | |
302 | unsigned int pipe; | |
303 | unsigned char requesttype = (0x41 | direction); | |
304 | int rc; | |
305 | ||
306 | // Get the receive or send control pipe number | |
307 | ||
308 | if (direction == USB_DIR_IN) | |
309 | pipe = us->recv_ctrl_pipe; | |
310 | else | |
311 | pipe = us->send_ctrl_pipe; | |
312 | ||
313 | rc = usb_stor_ctrl_transfer(us, pipe, request, requesttype, | |
314 | 0, 0, xfer_data, xfer_len); | |
0dc08a35 MD |
315 | switch (rc) { |
316 | case USB_STOR_XFER_GOOD: return 0; | |
317 | case USB_STOR_XFER_STALLED: return -EPIPE; | |
318 | default: return -EIO; | |
319 | } | |
1da177e4 LT |
320 | } |
321 | ||
322 | static int | |
323 | sddr09_send_scsi_command(struct us_data *us, | |
324 | unsigned char *command, | |
325 | unsigned int command_len) { | |
326 | return sddr09_send_command(us, 0, USB_DIR_OUT, command, command_len); | |
327 | } | |
328 | ||
329 | #if 0 | |
330 | /* | |
331 | * Test Unit Ready Command: 12 bytes. | |
332 | * byte 0: opcode: 00 | |
333 | */ | |
334 | static int | |
335 | sddr09_test_unit_ready(struct us_data *us) { | |
336 | unsigned char *command = us->iobuf; | |
337 | int result; | |
338 | ||
339 | memset(command, 0, 6); | |
340 | command[1] = LUNBITS; | |
341 | ||
342 | result = sddr09_send_scsi_command(us, command, 6); | |
343 | ||
191648d0 | 344 | usb_stor_dbg(us, "sddr09_test_unit_ready returns %d\n", result); |
1da177e4 LT |
345 | |
346 | return result; | |
347 | } | |
348 | #endif | |
349 | ||
350 | /* | |
351 | * Request Sense Command: 12 bytes. | |
352 | * byte 0: opcode: 03 | |
353 | * byte 4: data length | |
354 | */ | |
355 | static int | |
356 | sddr09_request_sense(struct us_data *us, unsigned char *sensebuf, int buflen) { | |
357 | unsigned char *command = us->iobuf; | |
358 | int result; | |
359 | ||
360 | memset(command, 0, 12); | |
361 | command[0] = 0x03; | |
362 | command[1] = LUNBITS; | |
363 | command[4] = buflen; | |
364 | ||
365 | result = sddr09_send_scsi_command(us, command, 12); | |
0dc08a35 | 366 | if (result) |
1da177e4 | 367 | return result; |
1da177e4 LT |
368 | |
369 | result = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe, | |
370 | sensebuf, buflen, NULL); | |
0dc08a35 | 371 | return (result == USB_STOR_XFER_GOOD ? 0 : -EIO); |
1da177e4 LT |
372 | } |
373 | ||
374 | /* | |
375 | * Read Command: 12 bytes. | |
376 | * byte 0: opcode: E8 | |
377 | * byte 1: last two bits: 00: read data, 01: read blockwise control, | |
378 | * 10: read both, 11: read pagewise control. | |
379 | * It turns out we need values 20, 21, 22, 23 here (LUN 1). | |
380 | * bytes 2-5: address (interpretation depends on byte 1, see below) | |
381 | * bytes 10-11: count (idem) | |
382 | * | |
383 | * A page has 512 data bytes and 64 control bytes (16 control and 48 junk). | |
384 | * A read data command gets data in 512-byte pages. | |
385 | * A read control command gets control in 64-byte chunks. | |
386 | * A read both command gets data+control in 576-byte chunks. | |
387 | * | |
388 | * Blocks are groups of 32 pages, and read blockwise control jumps to the | |
389 | * next block, while read pagewise control jumps to the next page after | |
390 | * reading a group of 64 control bytes. | |
391 | * [Here 512 = 1<<pageshift, 32 = 1<<blockshift, 64 is constant?] | |
392 | * | |
393 | * (1 MB and 2 MB cards are a bit different, but I have only a 16 MB card.) | |
394 | */ | |
395 | ||
396 | static int | |
397 | sddr09_readX(struct us_data *us, int x, unsigned long fromaddress, | |
398 | int nr_of_pages, int bulklen, unsigned char *buf, | |
399 | int use_sg) { | |
400 | ||
401 | unsigned char *command = us->iobuf; | |
402 | int result; | |
403 | ||
404 | command[0] = 0xE8; | |
405 | command[1] = LUNBITS | x; | |
406 | command[2] = MSB_of(fromaddress>>16); | |
407 | command[3] = LSB_of(fromaddress>>16); | |
408 | command[4] = MSB_of(fromaddress & 0xFFFF); | |
409 | command[5] = LSB_of(fromaddress & 0xFFFF); | |
410 | command[6] = 0; | |
411 | command[7] = 0; | |
412 | command[8] = 0; | |
413 | command[9] = 0; | |
414 | command[10] = MSB_of(nr_of_pages); | |
415 | command[11] = LSB_of(nr_of_pages); | |
416 | ||
417 | result = sddr09_send_scsi_command(us, command, 12); | |
418 | ||
0dc08a35 | 419 | if (result) { |
191648d0 JP |
420 | usb_stor_dbg(us, "Result for send_control in sddr09_read2%d %d\n", |
421 | x, result); | |
1da177e4 LT |
422 | return result; |
423 | } | |
424 | ||
425 | result = usb_stor_bulk_transfer_sg(us, us->recv_bulk_pipe, | |
426 | buf, bulklen, use_sg, NULL); | |
427 | ||
428 | if (result != USB_STOR_XFER_GOOD) { | |
191648d0 JP |
429 | usb_stor_dbg(us, "Result for bulk_transfer in sddr09_read2%d %d\n", |
430 | x, result); | |
0dc08a35 | 431 | return -EIO; |
1da177e4 | 432 | } |
0dc08a35 | 433 | return 0; |
1da177e4 LT |
434 | } |
435 | ||
436 | /* | |
437 | * Read Data | |
438 | * | |
439 | * fromaddress counts data shorts: | |
440 | * increasing it by 256 shifts the bytestream by 512 bytes; | |
441 | * the last 8 bits are ignored. | |
442 | * | |
443 | * nr_of_pages counts pages of size (1 << pageshift). | |
444 | */ | |
445 | static int | |
446 | sddr09_read20(struct us_data *us, unsigned long fromaddress, | |
447 | int nr_of_pages, int pageshift, unsigned char *buf, int use_sg) { | |
448 | int bulklen = nr_of_pages << pageshift; | |
449 | ||
450 | /* The last 8 bits of fromaddress are ignored. */ | |
451 | return sddr09_readX(us, 0, fromaddress, nr_of_pages, bulklen, | |
452 | buf, use_sg); | |
453 | } | |
454 | ||
455 | /* | |
456 | * Read Blockwise Control | |
457 | * | |
458 | * fromaddress gives the starting position (as in read data; | |
459 | * the last 8 bits are ignored); increasing it by 32*256 shifts | |
460 | * the output stream by 64 bytes. | |
461 | * | |
462 | * count counts control groups of size (1 << controlshift). | |
463 | * For me, controlshift = 6. Is this constant? | |
464 | * | |
465 | * After getting one control group, jump to the next block | |
466 | * (fromaddress += 8192). | |
467 | */ | |
468 | static int | |
469 | sddr09_read21(struct us_data *us, unsigned long fromaddress, | |
470 | int count, int controlshift, unsigned char *buf, int use_sg) { | |
471 | ||
472 | int bulklen = (count << controlshift); | |
473 | return sddr09_readX(us, 1, fromaddress, count, bulklen, | |
474 | buf, use_sg); | |
475 | } | |
476 | ||
477 | /* | |
478 | * Read both Data and Control | |
479 | * | |
480 | * fromaddress counts data shorts, ignoring control: | |
481 | * increasing it by 256 shifts the bytestream by 576 = 512+64 bytes; | |
482 | * the last 8 bits are ignored. | |
483 | * | |
484 | * nr_of_pages counts pages of size (1 << pageshift) + (1 << controlshift). | |
485 | */ | |
486 | static int | |
487 | sddr09_read22(struct us_data *us, unsigned long fromaddress, | |
488 | int nr_of_pages, int pageshift, unsigned char *buf, int use_sg) { | |
489 | ||
490 | int bulklen = (nr_of_pages << pageshift) + (nr_of_pages << CONTROL_SHIFT); | |
191648d0 | 491 | usb_stor_dbg(us, "reading %d pages, %d bytes\n", nr_of_pages, bulklen); |
1da177e4 LT |
492 | return sddr09_readX(us, 2, fromaddress, nr_of_pages, bulklen, |
493 | buf, use_sg); | |
494 | } | |
495 | ||
496 | #if 0 | |
497 | /* | |
498 | * Read Pagewise Control | |
499 | * | |
500 | * fromaddress gives the starting position (as in read data; | |
501 | * the last 8 bits are ignored); increasing it by 256 shifts | |
502 | * the output stream by 64 bytes. | |
503 | * | |
504 | * count counts control groups of size (1 << controlshift). | |
505 | * For me, controlshift = 6. Is this constant? | |
506 | * | |
507 | * After getting one control group, jump to the next page | |
508 | * (fromaddress += 256). | |
509 | */ | |
510 | static int | |
511 | sddr09_read23(struct us_data *us, unsigned long fromaddress, | |
512 | int count, int controlshift, unsigned char *buf, int use_sg) { | |
513 | ||
514 | int bulklen = (count << controlshift); | |
515 | return sddr09_readX(us, 3, fromaddress, count, bulklen, | |
516 | buf, use_sg); | |
517 | } | |
518 | #endif | |
519 | ||
520 | /* | |
521 | * Erase Command: 12 bytes. | |
522 | * byte 0: opcode: EA | |
523 | * bytes 6-9: erase address (big-endian, counting shorts, sector aligned). | |
524 | * | |
525 | * Always precisely one block is erased; bytes 2-5 and 10-11 are ignored. | |
526 | * The byte address being erased is 2*Eaddress. | |
527 | * The CIS cannot be erased. | |
528 | */ | |
529 | static int | |
530 | sddr09_erase(struct us_data *us, unsigned long Eaddress) { | |
531 | unsigned char *command = us->iobuf; | |
532 | int result; | |
533 | ||
191648d0 | 534 | usb_stor_dbg(us, "erase address %lu\n", Eaddress); |
1da177e4 LT |
535 | |
536 | memset(command, 0, 12); | |
537 | command[0] = 0xEA; | |
538 | command[1] = LUNBITS; | |
539 | command[6] = MSB_of(Eaddress>>16); | |
540 | command[7] = LSB_of(Eaddress>>16); | |
541 | command[8] = MSB_of(Eaddress & 0xFFFF); | |
542 | command[9] = LSB_of(Eaddress & 0xFFFF); | |
543 | ||
544 | result = sddr09_send_scsi_command(us, command, 12); | |
545 | ||
0dc08a35 | 546 | if (result) |
191648d0 JP |
547 | usb_stor_dbg(us, "Result for send_control in sddr09_erase %d\n", |
548 | result); | |
1da177e4 LT |
549 | |
550 | return result; | |
551 | } | |
552 | ||
553 | /* | |
554 | * Write CIS Command: 12 bytes. | |
555 | * byte 0: opcode: EE | |
556 | * bytes 2-5: write address in shorts | |
557 | * bytes 10-11: sector count | |
558 | * | |
559 | * This writes at the indicated address. Don't know how it differs | |
560 | * from E9. Maybe it does not erase? However, it will also write to | |
561 | * the CIS. | |
562 | * | |
563 | * When two such commands on the same page follow each other directly, | |
564 | * the second one is not done. | |
565 | */ | |
566 | ||
567 | /* | |
568 | * Write Command: 12 bytes. | |
569 | * byte 0: opcode: E9 | |
570 | * bytes 2-5: write address (big-endian, counting shorts, sector aligned). | |
571 | * bytes 6-9: erase address (big-endian, counting shorts, sector aligned). | |
572 | * bytes 10-11: sector count (big-endian, in 512-byte sectors). | |
573 | * | |
574 | * If write address equals erase address, the erase is done first, | |
575 | * otherwise the write is done first. When erase address equals zero | |
576 | * no erase is done? | |
577 | */ | |
578 | static int | |
579 | sddr09_writeX(struct us_data *us, | |
580 | unsigned long Waddress, unsigned long Eaddress, | |
581 | int nr_of_pages, int bulklen, unsigned char *buf, int use_sg) { | |
582 | ||
583 | unsigned char *command = us->iobuf; | |
584 | int result; | |
585 | ||
586 | command[0] = 0xE9; | |
587 | command[1] = LUNBITS; | |
588 | ||
589 | command[2] = MSB_of(Waddress>>16); | |
590 | command[3] = LSB_of(Waddress>>16); | |
591 | command[4] = MSB_of(Waddress & 0xFFFF); | |
592 | command[5] = LSB_of(Waddress & 0xFFFF); | |
593 | ||
594 | command[6] = MSB_of(Eaddress>>16); | |
595 | command[7] = LSB_of(Eaddress>>16); | |
596 | command[8] = MSB_of(Eaddress & 0xFFFF); | |
597 | command[9] = LSB_of(Eaddress & 0xFFFF); | |
598 | ||
599 | command[10] = MSB_of(nr_of_pages); | |
600 | command[11] = LSB_of(nr_of_pages); | |
601 | ||
602 | result = sddr09_send_scsi_command(us, command, 12); | |
603 | ||
0dc08a35 | 604 | if (result) { |
191648d0 JP |
605 | usb_stor_dbg(us, "Result for send_control in sddr09_writeX %d\n", |
606 | result); | |
1da177e4 LT |
607 | return result; |
608 | } | |
609 | ||
610 | result = usb_stor_bulk_transfer_sg(us, us->send_bulk_pipe, | |
611 | buf, bulklen, use_sg, NULL); | |
612 | ||
613 | if (result != USB_STOR_XFER_GOOD) { | |
191648d0 JP |
614 | usb_stor_dbg(us, "Result for bulk_transfer in sddr09_writeX %d\n", |
615 | result); | |
0dc08a35 | 616 | return -EIO; |
1da177e4 | 617 | } |
0dc08a35 | 618 | return 0; |
1da177e4 LT |
619 | } |
620 | ||
621 | /* erase address, write same address */ | |
622 | static int | |
623 | sddr09_write_inplace(struct us_data *us, unsigned long address, | |
624 | int nr_of_pages, int pageshift, unsigned char *buf, | |
625 | int use_sg) { | |
626 | int bulklen = (nr_of_pages << pageshift) + (nr_of_pages << CONTROL_SHIFT); | |
627 | return sddr09_writeX(us, address, address, nr_of_pages, bulklen, | |
628 | buf, use_sg); | |
629 | } | |
630 | ||
631 | #if 0 | |
632 | /* | |
633 | * Read Scatter Gather Command: 3+4n bytes. | |
634 | * byte 0: opcode E7 | |
635 | * byte 2: n | |
636 | * bytes 4i-1,4i,4i+1: page address | |
637 | * byte 4i+2: page count | |
638 | * (i=1..n) | |
639 | * | |
640 | * This reads several pages from the card to a single memory buffer. | |
641 | * The last two bits of byte 1 have the same meaning as for E8. | |
642 | */ | |
643 | static int | |
644 | sddr09_read_sg_test_only(struct us_data *us) { | |
645 | unsigned char *command = us->iobuf; | |
646 | int result, bulklen, nsg, ct; | |
647 | unsigned char *buf; | |
648 | unsigned long address; | |
649 | ||
650 | nsg = bulklen = 0; | |
651 | command[0] = 0xE7; | |
652 | command[1] = LUNBITS; | |
653 | command[2] = 0; | |
654 | address = 040000; ct = 1; | |
655 | nsg++; | |
656 | bulklen += (ct << 9); | |
657 | command[4*nsg+2] = ct; | |
658 | command[4*nsg+1] = ((address >> 9) & 0xFF); | |
659 | command[4*nsg+0] = ((address >> 17) & 0xFF); | |
660 | command[4*nsg-1] = ((address >> 25) & 0xFF); | |
661 | ||
662 | address = 0340000; ct = 1; | |
663 | nsg++; | |
664 | bulklen += (ct << 9); | |
665 | command[4*nsg+2] = ct; | |
666 | command[4*nsg+1] = ((address >> 9) & 0xFF); | |
667 | command[4*nsg+0] = ((address >> 17) & 0xFF); | |
668 | command[4*nsg-1] = ((address >> 25) & 0xFF); | |
669 | ||
670 | address = 01000000; ct = 2; | |
671 | nsg++; | |
672 | bulklen += (ct << 9); | |
673 | command[4*nsg+2] = ct; | |
674 | command[4*nsg+1] = ((address >> 9) & 0xFF); | |
675 | command[4*nsg+0] = ((address >> 17) & 0xFF); | |
676 | command[4*nsg-1] = ((address >> 25) & 0xFF); | |
677 | ||
678 | command[2] = nsg; | |
679 | ||
680 | result = sddr09_send_scsi_command(us, command, 4*nsg+3); | |
681 | ||
0dc08a35 | 682 | if (result) { |
191648d0 JP |
683 | usb_stor_dbg(us, "Result for send_control in sddr09_read_sg %d\n", |
684 | result); | |
1da177e4 LT |
685 | return result; |
686 | } | |
687 | ||
5cbded58 | 688 | buf = kmalloc(bulklen, GFP_NOIO); |
1da177e4 | 689 | if (!buf) |
0dc08a35 | 690 | return -ENOMEM; |
1da177e4 LT |
691 | |
692 | result = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe, | |
693 | buf, bulklen, NULL); | |
694 | kfree(buf); | |
695 | if (result != USB_STOR_XFER_GOOD) { | |
191648d0 JP |
696 | usb_stor_dbg(us, "Result for bulk_transfer in sddr09_read_sg %d\n", |
697 | result); | |
0dc08a35 | 698 | return -EIO; |
1da177e4 LT |
699 | } |
700 | ||
0dc08a35 | 701 | return 0; |
1da177e4 LT |
702 | } |
703 | #endif | |
704 | ||
705 | /* | |
706 | * Read Status Command: 12 bytes. | |
707 | * byte 0: opcode: EC | |
708 | * | |
709 | * Returns 64 bytes, all zero except for the first. | |
710 | * bit 0: 1: Error | |
711 | * bit 5: 1: Suspended | |
712 | * bit 6: 1: Ready | |
713 | * bit 7: 1: Not write-protected | |
714 | */ | |
715 | ||
716 | static int | |
717 | sddr09_read_status(struct us_data *us, unsigned char *status) { | |
718 | ||
719 | unsigned char *command = us->iobuf; | |
720 | unsigned char *data = us->iobuf; | |
721 | int result; | |
722 | ||
191648d0 | 723 | usb_stor_dbg(us, "Reading status...\n"); |
1da177e4 LT |
724 | |
725 | memset(command, 0, 12); | |
726 | command[0] = 0xEC; | |
727 | command[1] = LUNBITS; | |
728 | ||
729 | result = sddr09_send_scsi_command(us, command, 12); | |
0dc08a35 | 730 | if (result) |
1da177e4 LT |
731 | return result; |
732 | ||
733 | result = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe, | |
734 | data, 64, NULL); | |
735 | *status = data[0]; | |
0dc08a35 | 736 | return (result == USB_STOR_XFER_GOOD ? 0 : -EIO); |
1da177e4 LT |
737 | } |
738 | ||
739 | static int | |
740 | sddr09_read_data(struct us_data *us, | |
741 | unsigned long address, | |
742 | unsigned int sectors) { | |
743 | ||
744 | struct sddr09_card_info *info = (struct sddr09_card_info *) us->extra; | |
745 | unsigned char *buffer; | |
746 | unsigned int lba, maxlba, pba; | |
747 | unsigned int page, pages; | |
1f6f31a0 JA |
748 | unsigned int len, offset; |
749 | struct scatterlist *sg; | |
1da177e4 LT |
750 | int result; |
751 | ||
a6c976c6 MD |
752 | // Figure out the initial LBA and page |
753 | lba = address >> info->blockshift; | |
754 | page = (address & info->blockmask); | |
755 | maxlba = info->capacity >> (info->pageshift + info->blockshift); | |
756 | if (lba >= maxlba) | |
757 | return -EIO; | |
758 | ||
1da177e4 LT |
759 | // Since we only read in one block at a time, we have to create |
760 | // a bounce buffer and move the data a piece at a time between the | |
761 | // bounce buffer and the actual transfer buffer. | |
762 | ||
763 | len = min(sectors, (unsigned int) info->blocksize) * info->pagesize; | |
764 | buffer = kmalloc(len, GFP_NOIO); | |
765 | if (buffer == NULL) { | |
6f8aa65b | 766 | printk(KERN_WARNING "sddr09_read_data: Out of memory\n"); |
0dc08a35 | 767 | return -ENOMEM; |
1da177e4 LT |
768 | } |
769 | ||
1da177e4 LT |
770 | // This could be made much more efficient by checking for |
771 | // contiguous LBA's. Another exercise left to the student. | |
772 | ||
0dc08a35 | 773 | result = 0; |
1f6f31a0 JA |
774 | offset = 0; |
775 | sg = NULL; | |
1da177e4 LT |
776 | |
777 | while (sectors > 0) { | |
778 | ||
779 | /* Find number of pages we can read in this block */ | |
780 | pages = min(sectors, info->blocksize - page); | |
781 | len = pages << info->pageshift; | |
782 | ||
783 | /* Not overflowing capacity? */ | |
784 | if (lba >= maxlba) { | |
191648d0 JP |
785 | usb_stor_dbg(us, "Error: Requested lba %u exceeds maximum %u\n", |
786 | lba, maxlba); | |
0dc08a35 | 787 | result = -EIO; |
1da177e4 LT |
788 | break; |
789 | } | |
790 | ||
791 | /* Find where this lba lives on disk */ | |
792 | pba = info->lba_to_pba[lba]; | |
793 | ||
794 | if (pba == UNDEF) { /* this lba was never written */ | |
795 | ||
191648d0 JP |
796 | usb_stor_dbg(us, "Read %d zero pages (LBA %d) page %d\n", |
797 | pages, lba, page); | |
1da177e4 LT |
798 | |
799 | /* This is not really an error. It just means | |
800 | that the block has never been written. | |
0dc08a35 | 801 | Instead of returning an error |
1da177e4 LT |
802 | it is better to return all zero data. */ |
803 | ||
804 | memset(buffer, 0, len); | |
805 | ||
806 | } else { | |
191648d0 JP |
807 | usb_stor_dbg(us, "Read %d pages, from PBA %d (LBA %d) page %d\n", |
808 | pages, pba, lba, page); | |
1da177e4 LT |
809 | |
810 | address = ((pba << info->blockshift) + page) << | |
811 | info->pageshift; | |
812 | ||
813 | result = sddr09_read20(us, address>>1, | |
814 | pages, info->pageshift, buffer, 0); | |
0dc08a35 | 815 | if (result) |
1da177e4 LT |
816 | break; |
817 | } | |
818 | ||
819 | // Store the data in the transfer buffer | |
820 | usb_stor_access_xfer_buf(buffer, len, us->srb, | |
1f6f31a0 | 821 | &sg, &offset, TO_XFER_BUF); |
1da177e4 LT |
822 | |
823 | page = 0; | |
824 | lba++; | |
825 | sectors -= pages; | |
826 | } | |
827 | ||
828 | kfree(buffer); | |
829 | return result; | |
830 | } | |
831 | ||
832 | static unsigned int | |
833 | sddr09_find_unused_pba(struct sddr09_card_info *info, unsigned int lba) { | |
834 | static unsigned int lastpba = 1; | |
835 | int zonestart, end, i; | |
836 | ||
837 | zonestart = (lba/1000) << 10; | |
838 | end = info->capacity >> (info->blockshift + info->pageshift); | |
839 | end -= zonestart; | |
840 | if (end > 1024) | |
841 | end = 1024; | |
842 | ||
843 | for (i = lastpba+1; i < end; i++) { | |
844 | if (info->pba_to_lba[zonestart+i] == UNDEF) { | |
845 | lastpba = i; | |
846 | return zonestart+i; | |
847 | } | |
848 | } | |
849 | for (i = 0; i <= lastpba; i++) { | |
850 | if (info->pba_to_lba[zonestart+i] == UNDEF) { | |
851 | lastpba = i; | |
852 | return zonestart+i; | |
853 | } | |
854 | } | |
855 | return 0; | |
856 | } | |
857 | ||
858 | static int | |
859 | sddr09_write_lba(struct us_data *us, unsigned int lba, | |
860 | unsigned int page, unsigned int pages, | |
861 | unsigned char *ptr, unsigned char *blockbuffer) { | |
862 | ||
863 | struct sddr09_card_info *info = (struct sddr09_card_info *) us->extra; | |
864 | unsigned long address; | |
865 | unsigned int pba, lbap; | |
866 | unsigned int pagelen; | |
867 | unsigned char *bptr, *cptr, *xptr; | |
868 | unsigned char ecc[3]; | |
869 | int i, result, isnew; | |
870 | ||
871 | lbap = ((lba % 1000) << 1) | 0x1000; | |
872 | if (parity[MSB_of(lbap) ^ LSB_of(lbap)]) | |
873 | lbap ^= 1; | |
874 | pba = info->lba_to_pba[lba]; | |
875 | isnew = 0; | |
876 | ||
877 | if (pba == UNDEF) { | |
878 | pba = sddr09_find_unused_pba(info, lba); | |
879 | if (!pba) { | |
6f8aa65b FS |
880 | printk(KERN_WARNING |
881 | "sddr09_write_lba: Out of unused blocks\n"); | |
0dc08a35 | 882 | return -ENOSPC; |
1da177e4 LT |
883 | } |
884 | info->pba_to_lba[pba] = lba; | |
885 | info->lba_to_pba[lba] = pba; | |
886 | isnew = 1; | |
887 | } | |
888 | ||
889 | if (pba == 1) { | |
890 | /* Maybe it is impossible to write to PBA 1. | |
891 | Fake success, but don't do anything. */ | |
6f8aa65b | 892 | printk(KERN_WARNING "sddr09: avoid writing to pba 1\n"); |
0dc08a35 | 893 | return 0; |
1da177e4 LT |
894 | } |
895 | ||
896 | pagelen = (1 << info->pageshift) + (1 << CONTROL_SHIFT); | |
897 | ||
898 | /* read old contents */ | |
899 | address = (pba << (info->pageshift + info->blockshift)); | |
900 | result = sddr09_read22(us, address>>1, info->blocksize, | |
901 | info->pageshift, blockbuffer, 0); | |
0dc08a35 | 902 | if (result) |
1da177e4 LT |
903 | return result; |
904 | ||
905 | /* check old contents and fill lba */ | |
906 | for (i = 0; i < info->blocksize; i++) { | |
907 | bptr = blockbuffer + i*pagelen; | |
908 | cptr = bptr + info->pagesize; | |
909 | nand_compute_ecc(bptr, ecc); | |
910 | if (!nand_compare_ecc(cptr+13, ecc)) { | |
191648d0 JP |
911 | usb_stor_dbg(us, "Warning: bad ecc in page %d- of pba %d\n", |
912 | i, pba); | |
1da177e4 LT |
913 | nand_store_ecc(cptr+13, ecc); |
914 | } | |
915 | nand_compute_ecc(bptr+(info->pagesize / 2), ecc); | |
916 | if (!nand_compare_ecc(cptr+8, ecc)) { | |
191648d0 JP |
917 | usb_stor_dbg(us, "Warning: bad ecc in page %d+ of pba %d\n", |
918 | i, pba); | |
1da177e4 LT |
919 | nand_store_ecc(cptr+8, ecc); |
920 | } | |
921 | cptr[6] = cptr[11] = MSB_of(lbap); | |
922 | cptr[7] = cptr[12] = LSB_of(lbap); | |
923 | } | |
924 | ||
925 | /* copy in new stuff and compute ECC */ | |
926 | xptr = ptr; | |
927 | for (i = page; i < page+pages; i++) { | |
928 | bptr = blockbuffer + i*pagelen; | |
929 | cptr = bptr + info->pagesize; | |
930 | memcpy(bptr, xptr, info->pagesize); | |
931 | xptr += info->pagesize; | |
932 | nand_compute_ecc(bptr, ecc); | |
933 | nand_store_ecc(cptr+13, ecc); | |
934 | nand_compute_ecc(bptr+(info->pagesize / 2), ecc); | |
935 | nand_store_ecc(cptr+8, ecc); | |
936 | } | |
937 | ||
191648d0 | 938 | usb_stor_dbg(us, "Rewrite PBA %d (LBA %d)\n", pba, lba); |
1da177e4 LT |
939 | |
940 | result = sddr09_write_inplace(us, address>>1, info->blocksize, | |
941 | info->pageshift, blockbuffer, 0); | |
942 | ||
191648d0 | 943 | usb_stor_dbg(us, "sddr09_write_inplace returns %d\n", result); |
1da177e4 LT |
944 | |
945 | #if 0 | |
946 | { | |
947 | unsigned char status = 0; | |
948 | int result2 = sddr09_read_status(us, &status); | |
0dc08a35 | 949 | if (result2) |
191648d0 | 950 | usb_stor_dbg(us, "cannot read status\n"); |
1da177e4 | 951 | else if (status != 0xc0) |
191648d0 | 952 | usb_stor_dbg(us, "status after write: 0x%x\n", status); |
1da177e4 LT |
953 | } |
954 | #endif | |
955 | ||
956 | #if 0 | |
957 | { | |
958 | int result2 = sddr09_test_unit_ready(us); | |
959 | } | |
960 | #endif | |
961 | ||
962 | return result; | |
963 | } | |
964 | ||
965 | static int | |
966 | sddr09_write_data(struct us_data *us, | |
967 | unsigned long address, | |
968 | unsigned int sectors) { | |
969 | ||
970 | struct sddr09_card_info *info = (struct sddr09_card_info *) us->extra; | |
a6c976c6 | 971 | unsigned int lba, maxlba, page, pages; |
1da177e4 LT |
972 | unsigned int pagelen, blocklen; |
973 | unsigned char *blockbuffer; | |
974 | unsigned char *buffer; | |
1f6f31a0 JA |
975 | unsigned int len, offset; |
976 | struct scatterlist *sg; | |
1da177e4 LT |
977 | int result; |
978 | ||
a6c976c6 MD |
979 | // Figure out the initial LBA and page |
980 | lba = address >> info->blockshift; | |
981 | page = (address & info->blockmask); | |
982 | maxlba = info->capacity >> (info->pageshift + info->blockshift); | |
983 | if (lba >= maxlba) | |
984 | return -EIO; | |
985 | ||
1da177e4 LT |
986 | // blockbuffer is used for reading in the old data, overwriting |
987 | // with the new data, and performing ECC calculations | |
988 | ||
989 | /* TODO: instead of doing kmalloc/kfree for each write, | |
990 | add a bufferpointer to the info structure */ | |
991 | ||
992 | pagelen = (1 << info->pageshift) + (1 << CONTROL_SHIFT); | |
993 | blocklen = (pagelen << info->blockshift); | |
994 | blockbuffer = kmalloc(blocklen, GFP_NOIO); | |
995 | if (!blockbuffer) { | |
6f8aa65b | 996 | printk(KERN_WARNING "sddr09_write_data: Out of memory\n"); |
0dc08a35 | 997 | return -ENOMEM; |
1da177e4 LT |
998 | } |
999 | ||
1000 | // Since we don't write the user data directly to the device, | |
1001 | // we have to create a bounce buffer and move the data a piece | |
1002 | // at a time between the bounce buffer and the actual transfer buffer. | |
1003 | ||
1004 | len = min(sectors, (unsigned int) info->blocksize) * info->pagesize; | |
1005 | buffer = kmalloc(len, GFP_NOIO); | |
1006 | if (buffer == NULL) { | |
6f8aa65b | 1007 | printk(KERN_WARNING "sddr09_write_data: Out of memory\n"); |
1da177e4 | 1008 | kfree(blockbuffer); |
0dc08a35 | 1009 | return -ENOMEM; |
1da177e4 LT |
1010 | } |
1011 | ||
0dc08a35 | 1012 | result = 0; |
1f6f31a0 JA |
1013 | offset = 0; |
1014 | sg = NULL; | |
1da177e4 LT |
1015 | |
1016 | while (sectors > 0) { | |
1017 | ||
1018 | // Write as many sectors as possible in this block | |
1019 | ||
1020 | pages = min(sectors, info->blocksize - page); | |
1021 | len = (pages << info->pageshift); | |
1022 | ||
a6c976c6 MD |
1023 | /* Not overflowing capacity? */ |
1024 | if (lba >= maxlba) { | |
191648d0 JP |
1025 | usb_stor_dbg(us, "Error: Requested lba %u exceeds maximum %u\n", |
1026 | lba, maxlba); | |
a6c976c6 MD |
1027 | result = -EIO; |
1028 | break; | |
1029 | } | |
1030 | ||
1da177e4 LT |
1031 | // Get the data from the transfer buffer |
1032 | usb_stor_access_xfer_buf(buffer, len, us->srb, | |
1f6f31a0 | 1033 | &sg, &offset, FROM_XFER_BUF); |
1da177e4 LT |
1034 | |
1035 | result = sddr09_write_lba(us, lba, page, pages, | |
1036 | buffer, blockbuffer); | |
0dc08a35 | 1037 | if (result) |
1da177e4 LT |
1038 | break; |
1039 | ||
1040 | page = 0; | |
1041 | lba++; | |
1042 | sectors -= pages; | |
1043 | } | |
1044 | ||
1045 | kfree(buffer); | |
1046 | kfree(blockbuffer); | |
1047 | ||
1048 | return result; | |
1049 | } | |
1050 | ||
1051 | static int | |
1052 | sddr09_read_control(struct us_data *us, | |
1053 | unsigned long address, | |
1054 | unsigned int blocks, | |
1055 | unsigned char *content, | |
1056 | int use_sg) { | |
1057 | ||
191648d0 JP |
1058 | usb_stor_dbg(us, "Read control address %lu, blocks %d\n", |
1059 | address, blocks); | |
1da177e4 LT |
1060 | |
1061 | return sddr09_read21(us, address, blocks, | |
1062 | CONTROL_SHIFT, content, use_sg); | |
1063 | } | |
1064 | ||
1065 | /* | |
1066 | * Read Device ID Command: 12 bytes. | |
1067 | * byte 0: opcode: ED | |
1068 | * | |
1069 | * Returns 2 bytes: Manufacturer ID and Device ID. | |
1070 | * On more recent cards 3 bytes: the third byte is an option code A5 | |
1071 | * signifying that the secret command to read an 128-bit ID is available. | |
1072 | * On still more recent cards 4 bytes: the fourth byte C0 means that | |
1073 | * a second read ID cmd is available. | |
1074 | */ | |
1075 | static int | |
1076 | sddr09_read_deviceID(struct us_data *us, unsigned char *deviceID) { | |
1077 | unsigned char *command = us->iobuf; | |
1078 | unsigned char *content = us->iobuf; | |
1079 | int result, i; | |
1080 | ||
1081 | memset(command, 0, 12); | |
1082 | command[0] = 0xED; | |
1083 | command[1] = LUNBITS; | |
1084 | ||
1085 | result = sddr09_send_scsi_command(us, command, 12); | |
0dc08a35 | 1086 | if (result) |
1da177e4 LT |
1087 | return result; |
1088 | ||
1089 | result = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe, | |
1090 | content, 64, NULL); | |
1091 | ||
1092 | for (i = 0; i < 4; i++) | |
1093 | deviceID[i] = content[i]; | |
1094 | ||
0dc08a35 | 1095 | return (result == USB_STOR_XFER_GOOD ? 0 : -EIO); |
1da177e4 LT |
1096 | } |
1097 | ||
1098 | static int | |
1099 | sddr09_get_wp(struct us_data *us, struct sddr09_card_info *info) { | |
1100 | int result; | |
1101 | unsigned char status; | |
1102 | ||
1103 | result = sddr09_read_status(us, &status); | |
0dc08a35 | 1104 | if (result) { |
191648d0 | 1105 | usb_stor_dbg(us, "read_status fails\n"); |
1da177e4 LT |
1106 | return result; |
1107 | } | |
191648d0 | 1108 | usb_stor_dbg(us, "status 0x%02X", status); |
1da177e4 LT |
1109 | if ((status & 0x80) == 0) { |
1110 | info->flags |= SDDR09_WP; /* write protected */ | |
191648d0 | 1111 | US_DEBUGPX(" WP"); |
1da177e4 LT |
1112 | } |
1113 | if (status & 0x40) | |
191648d0 | 1114 | US_DEBUGPX(" Ready"); |
1da177e4 | 1115 | if (status & LUNBITS) |
191648d0 | 1116 | US_DEBUGPX(" Suspended"); |
1da177e4 | 1117 | if (status & 0x1) |
191648d0 JP |
1118 | US_DEBUGPX(" Error"); |
1119 | US_DEBUGPX("\n"); | |
0dc08a35 | 1120 | return 0; |
1da177e4 LT |
1121 | } |
1122 | ||
1123 | #if 0 | |
1124 | /* | |
1125 | * Reset Command: 12 bytes. | |
1126 | * byte 0: opcode: EB | |
1127 | */ | |
1128 | static int | |
1129 | sddr09_reset(struct us_data *us) { | |
1130 | ||
1131 | unsigned char *command = us->iobuf; | |
1132 | ||
1133 | memset(command, 0, 12); | |
1134 | command[0] = 0xEB; | |
1135 | command[1] = LUNBITS; | |
1136 | ||
1137 | return sddr09_send_scsi_command(us, command, 12); | |
1138 | } | |
1139 | #endif | |
1140 | ||
1141 | static struct nand_flash_dev * | |
1142 | sddr09_get_cardinfo(struct us_data *us, unsigned char flags) { | |
1143 | struct nand_flash_dev *cardinfo; | |
1144 | unsigned char deviceID[4]; | |
1145 | char blurbtxt[256]; | |
1146 | int result; | |
1147 | ||
191648d0 | 1148 | usb_stor_dbg(us, "Reading capacity...\n"); |
1da177e4 LT |
1149 | |
1150 | result = sddr09_read_deviceID(us, deviceID); | |
1151 | ||
0dc08a35 | 1152 | if (result) { |
191648d0 | 1153 | usb_stor_dbg(us, "Result of read_deviceID is %d\n", result); |
6f8aa65b | 1154 | printk(KERN_WARNING "sddr09: could not read card info\n"); |
1da177e4 LT |
1155 | return NULL; |
1156 | } | |
1157 | ||
1158 | sprintf(blurbtxt, "sddr09: Found Flash card, ID = %02X %02X %02X %02X", | |
1159 | deviceID[0], deviceID[1], deviceID[2], deviceID[3]); | |
1160 | ||
1161 | /* Byte 0 is the manufacturer */ | |
1162 | sprintf(blurbtxt + strlen(blurbtxt), | |
1163 | ": Manuf. %s", | |
1164 | nand_flash_manufacturer(deviceID[0])); | |
1165 | ||
1166 | /* Byte 1 is the device type */ | |
1167 | cardinfo = nand_find_id(deviceID[1]); | |
1168 | if (cardinfo) { | |
1169 | /* MB or MiB? It is neither. A 16 MB card has | |
1170 | 17301504 raw bytes, of which 16384000 are | |
1171 | usable for user data. */ | |
1172 | sprintf(blurbtxt + strlen(blurbtxt), | |
1173 | ", %d MB", 1<<(cardinfo->chipshift - 20)); | |
1174 | } else { | |
1175 | sprintf(blurbtxt + strlen(blurbtxt), | |
1176 | ", type unrecognized"); | |
1177 | } | |
1178 | ||
1179 | /* Byte 2 is code to signal availability of 128-bit ID */ | |
1180 | if (deviceID[2] == 0xa5) { | |
1181 | sprintf(blurbtxt + strlen(blurbtxt), | |
1182 | ", 128-bit ID"); | |
1183 | } | |
1184 | ||
1185 | /* Byte 3 announces the availability of another read ID command */ | |
1186 | if (deviceID[3] == 0xc0) { | |
1187 | sprintf(blurbtxt + strlen(blurbtxt), | |
1188 | ", extra cmd"); | |
1189 | } | |
1190 | ||
1191 | if (flags & SDDR09_WP) | |
1192 | sprintf(blurbtxt + strlen(blurbtxt), | |
1193 | ", WP"); | |
1194 | ||
6f8aa65b | 1195 | printk(KERN_WARNING "%s\n", blurbtxt); |
1da177e4 LT |
1196 | |
1197 | return cardinfo; | |
1198 | } | |
1199 | ||
1200 | static int | |
1201 | sddr09_read_map(struct us_data *us) { | |
1202 | ||
1203 | struct sddr09_card_info *info = (struct sddr09_card_info *) us->extra; | |
1204 | int numblocks, alloc_len, alloc_blocks; | |
1205 | int i, j, result; | |
1206 | unsigned char *buffer, *buffer_end, *ptr; | |
1207 | unsigned int lba, lbact; | |
1208 | ||
1209 | if (!info->capacity) | |
1210 | return -1; | |
1211 | ||
1212 | // size of a block is 1 << (blockshift + pageshift) bytes | |
1213 | // divide into the total capacity to get the number of blocks | |
1214 | ||
1215 | numblocks = info->capacity >> (info->blockshift + info->pageshift); | |
1216 | ||
1217 | // read 64 bytes for every block (actually 1 << CONTROL_SHIFT) | |
1218 | // but only use a 64 KB buffer | |
1219 | // buffer size used must be a multiple of (1 << CONTROL_SHIFT) | |
1220 | #define SDDR09_READ_MAP_BUFSZ 65536 | |
1221 | ||
1222 | alloc_blocks = min(numblocks, SDDR09_READ_MAP_BUFSZ >> CONTROL_SHIFT); | |
1223 | alloc_len = (alloc_blocks << CONTROL_SHIFT); | |
1224 | buffer = kmalloc(alloc_len, GFP_NOIO); | |
1225 | if (buffer == NULL) { | |
6f8aa65b | 1226 | printk(KERN_WARNING "sddr09_read_map: out of memory\n"); |
1da177e4 LT |
1227 | result = -1; |
1228 | goto done; | |
1229 | } | |
1230 | buffer_end = buffer + alloc_len; | |
1231 | ||
1232 | #undef SDDR09_READ_MAP_BUFSZ | |
1233 | ||
1234 | kfree(info->lba_to_pba); | |
1235 | kfree(info->pba_to_lba); | |
1236 | info->lba_to_pba = kmalloc(numblocks*sizeof(int), GFP_NOIO); | |
1237 | info->pba_to_lba = kmalloc(numblocks*sizeof(int), GFP_NOIO); | |
1238 | ||
1239 | if (info->lba_to_pba == NULL || info->pba_to_lba == NULL) { | |
6f8aa65b | 1240 | printk(KERN_WARNING "sddr09_read_map: out of memory\n"); |
1da177e4 LT |
1241 | result = -1; |
1242 | goto done; | |
1243 | } | |
1244 | ||
1245 | for (i = 0; i < numblocks; i++) | |
1246 | info->lba_to_pba[i] = info->pba_to_lba[i] = UNDEF; | |
1247 | ||
1248 | /* | |
1249 | * Define lba-pba translation table | |
1250 | */ | |
1251 | ||
1252 | ptr = buffer_end; | |
1253 | for (i = 0; i < numblocks; i++) { | |
1254 | ptr += (1 << CONTROL_SHIFT); | |
1255 | if (ptr >= buffer_end) { | |
1256 | unsigned long address; | |
1257 | ||
1258 | address = i << (info->pageshift + info->blockshift); | |
1259 | result = sddr09_read_control( | |
1260 | us, address>>1, | |
1261 | min(alloc_blocks, numblocks - i), | |
1262 | buffer, 0); | |
0dc08a35 | 1263 | if (result) { |
1da177e4 LT |
1264 | result = -1; |
1265 | goto done; | |
1266 | } | |
1267 | ptr = buffer; | |
1268 | } | |
1269 | ||
1270 | if (i == 0 || i == 1) { | |
1271 | info->pba_to_lba[i] = UNUSABLE; | |
1272 | continue; | |
1273 | } | |
1274 | ||
1275 | /* special PBAs have control field 0^16 */ | |
1276 | for (j = 0; j < 16; j++) | |
1277 | if (ptr[j] != 0) | |
1278 | goto nonz; | |
1279 | info->pba_to_lba[i] = UNUSABLE; | |
6f8aa65b FS |
1280 | printk(KERN_WARNING "sddr09: PBA %d has no logical mapping\n", |
1281 | i); | |
1da177e4 LT |
1282 | continue; |
1283 | ||
1284 | nonz: | |
1285 | /* unwritten PBAs have control field FF^16 */ | |
1286 | for (j = 0; j < 16; j++) | |
1287 | if (ptr[j] != 0xff) | |
1288 | goto nonff; | |
1289 | continue; | |
1290 | ||
1291 | nonff: | |
1292 | /* normal PBAs start with six FFs */ | |
1293 | if (j < 6) { | |
6f8aa65b FS |
1294 | printk(KERN_WARNING |
1295 | "sddr09: PBA %d has no logical mapping: " | |
1da177e4 LT |
1296 | "reserved area = %02X%02X%02X%02X " |
1297 | "data status %02X block status %02X\n", | |
1298 | i, ptr[0], ptr[1], ptr[2], ptr[3], | |
1299 | ptr[4], ptr[5]); | |
1300 | info->pba_to_lba[i] = UNUSABLE; | |
1301 | continue; | |
1302 | } | |
1303 | ||
1304 | if ((ptr[6] >> 4) != 0x01) { | |
6f8aa65b FS |
1305 | printk(KERN_WARNING |
1306 | "sddr09: PBA %d has invalid address field " | |
1da177e4 LT |
1307 | "%02X%02X/%02X%02X\n", |
1308 | i, ptr[6], ptr[7], ptr[11], ptr[12]); | |
1309 | info->pba_to_lba[i] = UNUSABLE; | |
1310 | continue; | |
1311 | } | |
1312 | ||
1313 | /* check even parity */ | |
1314 | if (parity[ptr[6] ^ ptr[7]]) { | |
6f8aa65b FS |
1315 | printk(KERN_WARNING |
1316 | "sddr09: Bad parity in LBA for block %d" | |
1da177e4 LT |
1317 | " (%02X %02X)\n", i, ptr[6], ptr[7]); |
1318 | info->pba_to_lba[i] = UNUSABLE; | |
1319 | continue; | |
1320 | } | |
1321 | ||
1322 | lba = short_pack(ptr[7], ptr[6]); | |
1323 | lba = (lba & 0x07FF) >> 1; | |
1324 | ||
1325 | /* | |
1326 | * Every 1024 physical blocks ("zone"), the LBA numbers | |
1327 | * go back to zero, but are within a higher block of LBA's. | |
1328 | * Also, there is a maximum of 1000 LBA's per zone. | |
1329 | * In other words, in PBA 1024-2047 you will find LBA 0-999 | |
1330 | * which are really LBA 1000-1999. This allows for 24 bad | |
1331 | * or special physical blocks per zone. | |
1332 | */ | |
1333 | ||
1334 | if (lba >= 1000) { | |
6f8aa65b FS |
1335 | printk(KERN_WARNING |
1336 | "sddr09: Bad low LBA %d for block %d\n", | |
1da177e4 LT |
1337 | lba, i); |
1338 | goto possibly_erase; | |
1339 | } | |
1340 | ||
1341 | lba += 1000*(i/0x400); | |
1342 | ||
1343 | if (info->lba_to_pba[lba] != UNDEF) { | |
6f8aa65b FS |
1344 | printk(KERN_WARNING |
1345 | "sddr09: LBA %d seen for PBA %d and %d\n", | |
1da177e4 LT |
1346 | lba, info->lba_to_pba[lba], i); |
1347 | goto possibly_erase; | |
1348 | } | |
1349 | ||
1350 | info->pba_to_lba[i] = lba; | |
1351 | info->lba_to_pba[lba] = i; | |
1352 | continue; | |
1353 | ||
1354 | possibly_erase: | |
1355 | if (erase_bad_lba_entries) { | |
1356 | unsigned long address; | |
1357 | ||
1358 | address = (i << (info->pageshift + info->blockshift)); | |
1359 | sddr09_erase(us, address>>1); | |
1360 | info->pba_to_lba[i] = UNDEF; | |
1361 | } else | |
1362 | info->pba_to_lba[i] = UNUSABLE; | |
1363 | } | |
1364 | ||
1365 | /* | |
1366 | * Approximate capacity. This is not entirely correct yet, | |
1367 | * since a zone with less than 1000 usable pages leads to | |
1368 | * missing LBAs. Especially if it is the last zone, some | |
1369 | * LBAs can be past capacity. | |
1370 | */ | |
1371 | lbact = 0; | |
1372 | for (i = 0; i < numblocks; i += 1024) { | |
1373 | int ct = 0; | |
1374 | ||
1375 | for (j = 0; j < 1024 && i+j < numblocks; j++) { | |
1376 | if (info->pba_to_lba[i+j] != UNUSABLE) { | |
1377 | if (ct >= 1000) | |
1378 | info->pba_to_lba[i+j] = SPARE; | |
1379 | else | |
1380 | ct++; | |
1381 | } | |
1382 | } | |
1383 | lbact += ct; | |
1384 | } | |
1385 | info->lbact = lbact; | |
191648d0 | 1386 | usb_stor_dbg(us, "Found %d LBA's\n", lbact); |
1da177e4 LT |
1387 | result = 0; |
1388 | ||
1389 | done: | |
1390 | if (result != 0) { | |
1391 | kfree(info->lba_to_pba); | |
1392 | kfree(info->pba_to_lba); | |
1393 | info->lba_to_pba = NULL; | |
1394 | info->pba_to_lba = NULL; | |
1395 | } | |
1396 | kfree(buffer); | |
1397 | return result; | |
1398 | } | |
1399 | ||
1400 | static void | |
1401 | sddr09_card_info_destructor(void *extra) { | |
1402 | struct sddr09_card_info *info = (struct sddr09_card_info *)extra; | |
1403 | ||
1404 | if (!info) | |
1405 | return; | |
1406 | ||
1407 | kfree(info->lba_to_pba); | |
1408 | kfree(info->pba_to_lba); | |
1409 | } | |
1410 | ||
f5b8cb9c MD |
1411 | static int |
1412 | sddr09_common_init(struct us_data *us) { | |
1413 | int result; | |
1414 | ||
1415 | /* set the configuration -- STALL is an acceptable response here */ | |
1416 | if (us->pusb_dev->actconfig->desc.bConfigurationValue != 1) { | |
191648d0 JP |
1417 | usb_stor_dbg(us, "active config #%d != 1 ??\n", |
1418 | us->pusb_dev->actconfig->desc.bConfigurationValue); | |
f5b8cb9c MD |
1419 | return -EINVAL; |
1420 | } | |
1421 | ||
1422 | result = usb_reset_configuration(us->pusb_dev); | |
191648d0 | 1423 | usb_stor_dbg(us, "Result of usb_reset_configuration is %d\n", result); |
f5b8cb9c | 1424 | if (result == -EPIPE) { |
191648d0 | 1425 | usb_stor_dbg(us, "-- stall on control interface\n"); |
f5b8cb9c MD |
1426 | } else if (result != 0) { |
1427 | /* it's not a stall, but another error -- time to bail */ | |
191648d0 | 1428 | usb_stor_dbg(us, "-- Unknown error. Rejecting device\n"); |
f5b8cb9c | 1429 | return -EINVAL; |
1da177e4 | 1430 | } |
f5b8cb9c MD |
1431 | |
1432 | us->extra = kzalloc(sizeof(struct sddr09_card_info), GFP_NOIO); | |
1433 | if (!us->extra) | |
1434 | return -ENOMEM; | |
1435 | us->extra_destructor = sddr09_card_info_destructor; | |
1436 | ||
1437 | nand_init_ecc(); | |
1438 | return 0; | |
1da177e4 LT |
1439 | } |
1440 | ||
f5b8cb9c | 1441 | |
1da177e4 LT |
1442 | /* |
1443 | * This is needed at a very early stage. If this is not listed in the | |
1444 | * unusual devices list but called from here then LUN 0 of the combo reader | |
1445 | * is not recognized. But I do not know what precisely these calls do. | |
1446 | */ | |
0ff71883 | 1447 | static int |
f5b8cb9c | 1448 | usb_stor_sddr09_dpcm_init(struct us_data *us) { |
1da177e4 LT |
1449 | int result; |
1450 | unsigned char *data = us->iobuf; | |
1451 | ||
f5b8cb9c MD |
1452 | result = sddr09_common_init(us); |
1453 | if (result) | |
1454 | return result; | |
1455 | ||
1da177e4 | 1456 | result = sddr09_send_command(us, 0x01, USB_DIR_IN, data, 2); |
0dc08a35 | 1457 | if (result) { |
191648d0 | 1458 | usb_stor_dbg(us, "send_command fails\n"); |
1da177e4 LT |
1459 | return result; |
1460 | } | |
1461 | ||
191648d0 | 1462 | usb_stor_dbg(us, "%02X %02X\n", data[0], data[1]); |
1da177e4 LT |
1463 | // get 07 02 |
1464 | ||
1465 | result = sddr09_send_command(us, 0x08, USB_DIR_IN, data, 2); | |
0dc08a35 | 1466 | if (result) { |
191648d0 | 1467 | usb_stor_dbg(us, "2nd send_command fails\n"); |
1da177e4 LT |
1468 | return result; |
1469 | } | |
1470 | ||
191648d0 | 1471 | usb_stor_dbg(us, "%02X %02X\n", data[0], data[1]); |
1da177e4 LT |
1472 | // get 07 00 |
1473 | ||
1474 | result = sddr09_request_sense(us, data, 18); | |
0dc08a35 | 1475 | if (result == 0 && data[2] != 0) { |
1da177e4 LT |
1476 | int j; |
1477 | for (j=0; j<18; j++) | |
1478 | printk(" %02X", data[j]); | |
1479 | printk("\n"); | |
1480 | // get 70 00 00 00 00 00 00 * 00 00 00 00 00 00 | |
1481 | // 70: current command | |
1482 | // sense key 0, sense code 0, extd sense code 0 | |
1483 | // additional transfer length * = sizeof(data) - 7 | |
1484 | // Or: 70 00 06 00 00 00 00 0b 00 00 00 00 28 00 00 00 00 00 | |
1485 | // sense key 06, sense code 28: unit attention, | |
1486 | // not ready to ready transition | |
1487 | } | |
1488 | ||
1489 | // test unit ready | |
1490 | ||
f5b8cb9c | 1491 | return 0; /* not result */ |
1da177e4 LT |
1492 | } |
1493 | ||
c20b15fd AS |
1494 | /* |
1495 | * Transport for the Microtech DPCM-USB | |
1496 | */ | |
0ff71883 | 1497 | static int dpcm_transport(struct scsi_cmnd *srb, struct us_data *us) |
c20b15fd AS |
1498 | { |
1499 | int ret; | |
1500 | ||
191648d0 | 1501 | usb_stor_dbg(us, "LUN=%d\n", srb->device->lun); |
c20b15fd AS |
1502 | |
1503 | switch (srb->device->lun) { | |
1504 | case 0: | |
1505 | ||
1506 | /* | |
1507 | * LUN 0 corresponds to the CompactFlash card reader. | |
1508 | */ | |
1509 | ret = usb_stor_CB_transport(srb, us); | |
1510 | break; | |
1511 | ||
1512 | case 1: | |
1513 | ||
1514 | /* | |
1515 | * LUN 1 corresponds to the SmartMedia card reader. | |
1516 | */ | |
1517 | ||
1518 | /* | |
1519 | * Set the LUN to 0 (just in case). | |
1520 | */ | |
1521 | srb->device->lun = 0; | |
1522 | ret = sddr09_transport(srb, us); | |
1523 | srb->device->lun = 1; | |
1524 | break; | |
1525 | ||
1526 | default: | |
191648d0 | 1527 | usb_stor_dbg(us, "Invalid LUN %d\n", srb->device->lun); |
c20b15fd AS |
1528 | ret = USB_STOR_TRANSPORT_ERROR; |
1529 | break; | |
1530 | } | |
1531 | return ret; | |
1532 | } | |
1533 | ||
1534 | ||
1da177e4 LT |
1535 | /* |
1536 | * Transport for the Sandisk SDDR-09 | |
1537 | */ | |
0ff71883 | 1538 | static int sddr09_transport(struct scsi_cmnd *srb, struct us_data *us) |
1da177e4 LT |
1539 | { |
1540 | static unsigned char sensekey = 0, sensecode = 0; | |
1541 | static unsigned char havefakesense = 0; | |
1542 | int result, i; | |
1543 | unsigned char *ptr = us->iobuf; | |
1544 | unsigned long capacity; | |
1545 | unsigned int page, pages; | |
1546 | ||
1547 | struct sddr09_card_info *info; | |
1548 | ||
1549 | static unsigned char inquiry_response[8] = { | |
1550 | 0x00, 0x80, 0x00, 0x02, 0x1F, 0x00, 0x00, 0x00 | |
1551 | }; | |
1552 | ||
1553 | /* note: no block descriptor support */ | |
1554 | static unsigned char mode_page_01[19] = { | |
1555 | 0x00, 0x0F, 0x00, 0x0, 0x0, 0x0, 0x00, | |
1556 | 0x01, 0x0A, | |
1557 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 | |
1558 | }; | |
1559 | ||
1560 | info = (struct sddr09_card_info *)us->extra; | |
1da177e4 LT |
1561 | |
1562 | if (srb->cmnd[0] == REQUEST_SENSE && havefakesense) { | |
1563 | /* for a faked command, we have to follow with a faked sense */ | |
1564 | memset(ptr, 0, 18); | |
1565 | ptr[0] = 0x70; | |
1566 | ptr[2] = sensekey; | |
1567 | ptr[7] = 11; | |
1568 | ptr[12] = sensecode; | |
1569 | usb_stor_set_xfer_buf(ptr, 18, srb); | |
1570 | sensekey = sensecode = havefakesense = 0; | |
1571 | return USB_STOR_TRANSPORT_GOOD; | |
1572 | } | |
1573 | ||
1574 | havefakesense = 1; | |
1575 | ||
1576 | /* Dummy up a response for INQUIRY since SDDR09 doesn't | |
1577 | respond to INQUIRY commands */ | |
1578 | ||
1579 | if (srb->cmnd[0] == INQUIRY) { | |
1580 | memcpy(ptr, inquiry_response, 8); | |
1581 | fill_inquiry_response(us, ptr, 36); | |
1582 | return USB_STOR_TRANSPORT_GOOD; | |
1583 | } | |
1584 | ||
1585 | if (srb->cmnd[0] == READ_CAPACITY) { | |
1586 | struct nand_flash_dev *cardinfo; | |
1587 | ||
1588 | sddr09_get_wp(us, info); /* read WP bit */ | |
1589 | ||
1590 | cardinfo = sddr09_get_cardinfo(us, info->flags); | |
1591 | if (!cardinfo) { | |
1592 | /* probably no media */ | |
1593 | init_error: | |
1594 | sensekey = 0x02; /* not ready */ | |
1595 | sensecode = 0x3a; /* medium not present */ | |
1596 | return USB_STOR_TRANSPORT_FAILED; | |
1597 | } | |
1598 | ||
1599 | info->capacity = (1 << cardinfo->chipshift); | |
1600 | info->pageshift = cardinfo->pageshift; | |
1601 | info->pagesize = (1 << info->pageshift); | |
1602 | info->blockshift = cardinfo->blockshift; | |
1603 | info->blocksize = (1 << info->blockshift); | |
1604 | info->blockmask = info->blocksize - 1; | |
1605 | ||
1606 | // map initialization, must follow get_cardinfo() | |
1607 | if (sddr09_read_map(us)) { | |
1608 | /* probably out of memory */ | |
1609 | goto init_error; | |
1610 | } | |
1611 | ||
1612 | // Report capacity | |
1613 | ||
1614 | capacity = (info->lbact << info->blockshift) - 1; | |
1615 | ||
1616 | ((__be32 *) ptr)[0] = cpu_to_be32(capacity); | |
1617 | ||
1618 | // Report page size | |
1619 | ||
1620 | ((__be32 *) ptr)[1] = cpu_to_be32(info->pagesize); | |
1621 | usb_stor_set_xfer_buf(ptr, 8, srb); | |
1622 | ||
1623 | return USB_STOR_TRANSPORT_GOOD; | |
1624 | } | |
1625 | ||
1626 | if (srb->cmnd[0] == MODE_SENSE_10) { | |
1627 | int modepage = (srb->cmnd[2] & 0x3F); | |
1628 | ||
1629 | /* They ask for the Read/Write error recovery page, | |
1630 | or for all pages. */ | |
1631 | /* %% We should check DBD %% */ | |
1632 | if (modepage == 0x01 || modepage == 0x3F) { | |
191648d0 JP |
1633 | usb_stor_dbg(us, "Dummy up request for mode page 0x%x\n", |
1634 | modepage); | |
1da177e4 LT |
1635 | |
1636 | memcpy(ptr, mode_page_01, sizeof(mode_page_01)); | |
1637 | ((__be16*)ptr)[0] = cpu_to_be16(sizeof(mode_page_01) - 2); | |
1638 | ptr[3] = (info->flags & SDDR09_WP) ? 0x80 : 0; | |
1639 | usb_stor_set_xfer_buf(ptr, sizeof(mode_page_01), srb); | |
1640 | return USB_STOR_TRANSPORT_GOOD; | |
1641 | } | |
1642 | ||
1643 | sensekey = 0x05; /* illegal request */ | |
1644 | sensecode = 0x24; /* invalid field in CDB */ | |
1645 | return USB_STOR_TRANSPORT_FAILED; | |
1646 | } | |
1647 | ||
1648 | if (srb->cmnd[0] == ALLOW_MEDIUM_REMOVAL) | |
1649 | return USB_STOR_TRANSPORT_GOOD; | |
1650 | ||
1651 | havefakesense = 0; | |
1652 | ||
1653 | if (srb->cmnd[0] == READ_10) { | |
1654 | ||
1655 | page = short_pack(srb->cmnd[3], srb->cmnd[2]); | |
1656 | page <<= 16; | |
1657 | page |= short_pack(srb->cmnd[5], srb->cmnd[4]); | |
1658 | pages = short_pack(srb->cmnd[8], srb->cmnd[7]); | |
1659 | ||
191648d0 JP |
1660 | usb_stor_dbg(us, "READ_10: read page %d pagect %d\n", |
1661 | page, pages); | |
1da177e4 | 1662 | |
0dc08a35 MD |
1663 | result = sddr09_read_data(us, page, pages); |
1664 | return (result == 0 ? USB_STOR_TRANSPORT_GOOD : | |
1665 | USB_STOR_TRANSPORT_ERROR); | |
1da177e4 LT |
1666 | } |
1667 | ||
1668 | if (srb->cmnd[0] == WRITE_10) { | |
1669 | ||
1670 | page = short_pack(srb->cmnd[3], srb->cmnd[2]); | |
1671 | page <<= 16; | |
1672 | page |= short_pack(srb->cmnd[5], srb->cmnd[4]); | |
1673 | pages = short_pack(srb->cmnd[8], srb->cmnd[7]); | |
1674 | ||
191648d0 JP |
1675 | usb_stor_dbg(us, "WRITE_10: write page %d pagect %d\n", |
1676 | page, pages); | |
1da177e4 | 1677 | |
0dc08a35 MD |
1678 | result = sddr09_write_data(us, page, pages); |
1679 | return (result == 0 ? USB_STOR_TRANSPORT_GOOD : | |
1680 | USB_STOR_TRANSPORT_ERROR); | |
1da177e4 LT |
1681 | } |
1682 | ||
1683 | /* catch-all for all other commands, except | |
1684 | * pass TEST_UNIT_READY and REQUEST_SENSE through | |
1685 | */ | |
1686 | if (srb->cmnd[0] != TEST_UNIT_READY && | |
1687 | srb->cmnd[0] != REQUEST_SENSE) { | |
1688 | sensekey = 0x05; /* illegal request */ | |
1689 | sensecode = 0x20; /* invalid command */ | |
1690 | havefakesense = 1; | |
1691 | return USB_STOR_TRANSPORT_FAILED; | |
1692 | } | |
1693 | ||
1694 | for (; srb->cmd_len<12; srb->cmd_len++) | |
1695 | srb->cmnd[srb->cmd_len] = 0; | |
1696 | ||
1697 | srb->cmnd[1] = LUNBITS; | |
1698 | ||
1699 | ptr[0] = 0; | |
1700 | for (i=0; i<12; i++) | |
1701 | sprintf(ptr+strlen(ptr), "%02X ", srb->cmnd[i]); | |
1702 | ||
191648d0 | 1703 | usb_stor_dbg(us, "Send control for command %s\n", ptr); |
1da177e4 LT |
1704 | |
1705 | result = sddr09_send_scsi_command(us, srb->cmnd, 12); | |
0dc08a35 | 1706 | if (result) { |
191648d0 JP |
1707 | usb_stor_dbg(us, "sddr09_send_scsi_command returns %d\n", |
1708 | result); | |
0dc08a35 | 1709 | return USB_STOR_TRANSPORT_ERROR; |
1da177e4 LT |
1710 | } |
1711 | ||
41c2497b | 1712 | if (scsi_bufflen(srb) == 0) |
1da177e4 LT |
1713 | return USB_STOR_TRANSPORT_GOOD; |
1714 | ||
1715 | if (srb->sc_data_direction == DMA_TO_DEVICE || | |
1716 | srb->sc_data_direction == DMA_FROM_DEVICE) { | |
1717 | unsigned int pipe = (srb->sc_data_direction == DMA_TO_DEVICE) | |
1718 | ? us->send_bulk_pipe : us->recv_bulk_pipe; | |
1719 | ||
191648d0 JP |
1720 | usb_stor_dbg(us, "%s %d bytes\n", |
1721 | (srb->sc_data_direction == DMA_TO_DEVICE) ? | |
1722 | "sending" : "receiving", | |
1723 | scsi_bufflen(srb)); | |
1da177e4 | 1724 | |
41c2497b | 1725 | result = usb_stor_bulk_srb(us, pipe, srb); |
1da177e4 LT |
1726 | |
1727 | return (result == USB_STOR_XFER_GOOD ? | |
1728 | USB_STOR_TRANSPORT_GOOD : USB_STOR_TRANSPORT_ERROR); | |
1729 | } | |
1730 | ||
1731 | return USB_STOR_TRANSPORT_GOOD; | |
1732 | } | |
1733 | ||
f5b8cb9c MD |
1734 | /* |
1735 | * Initialization routine for the sddr09 subdriver | |
1736 | */ | |
0ff71883 | 1737 | static int |
f5b8cb9c MD |
1738 | usb_stor_sddr09_init(struct us_data *us) { |
1739 | return sddr09_common_init(us); | |
1740 | } | |
0ff71883 AS |
1741 | |
1742 | static int sddr09_probe(struct usb_interface *intf, | |
1743 | const struct usb_device_id *id) | |
1744 | { | |
1745 | struct us_data *us; | |
1746 | int result; | |
1747 | ||
1748 | result = usb_stor_probe1(&us, intf, id, | |
1749 | (id - sddr09_usb_ids) + sddr09_unusual_dev_list); | |
1750 | if (result) | |
1751 | return result; | |
1752 | ||
8fa7fd74 | 1753 | if (us->protocol == USB_PR_DPCM_USB) { |
0ff71883 AS |
1754 | us->transport_name = "Control/Bulk-EUSB/SDDR09"; |
1755 | us->transport = dpcm_transport; | |
1756 | us->transport_reset = usb_stor_CB_reset; | |
1757 | us->max_lun = 1; | |
1758 | } else { | |
1759 | us->transport_name = "EUSB/SDDR09"; | |
1760 | us->transport = sddr09_transport; | |
1761 | us->transport_reset = usb_stor_CB_reset; | |
1762 | us->max_lun = 0; | |
1763 | } | |
1764 | ||
1765 | result = usb_stor_probe2(us); | |
1766 | return result; | |
1767 | } | |
1768 | ||
1769 | static struct usb_driver sddr09_driver = { | |
1770 | .name = "ums-sddr09", | |
1771 | .probe = sddr09_probe, | |
1772 | .disconnect = usb_stor_disconnect, | |
1773 | .suspend = usb_stor_suspend, | |
1774 | .resume = usb_stor_resume, | |
1775 | .reset_resume = usb_stor_reset_resume, | |
1776 | .pre_reset = usb_stor_pre_reset, | |
1777 | .post_reset = usb_stor_post_reset, | |
1778 | .id_table = sddr09_usb_ids, | |
1779 | .soft_unbind = 1, | |
e73b2db6 | 1780 | .no_dynamic_id = 1, |
0ff71883 AS |
1781 | }; |
1782 | ||
65db4305 | 1783 | module_usb_driver(sddr09_driver); |