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Commit | Line | Data |
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f0183a33 FB |
1 | /* |
2 | * Driver for SanDisk SDDR-09 SmartMedia reader | |
1da177e4 | 3 | * |
1da177e4 LT |
4 | * (c) 2000, 2001 Robert Baruch (autophile@starband.net) |
5 | * (c) 2002 Andries Brouwer (aeb@cwi.nl) | |
6 | * Developed with the assistance of: | |
7 | * (c) 2002 Alan Stern <stern@rowland.org> | |
8 | * | |
9 | * The SanDisk SDDR-09 SmartMedia reader uses the Shuttle EUSB-01 chip. | |
10 | * This chip is a programmable USB controller. In the SDDR-09, it has | |
11 | * been programmed to obey a certain limited set of SCSI commands. | |
12 | * This driver translates the "real" SCSI commands to the SDDR-09 SCSI | |
13 | * commands. | |
14 | * | |
15 | * This program is free software; you can redistribute it and/or modify it | |
16 | * under the terms of the GNU General Public License as published by the | |
17 | * Free Software Foundation; either version 2, or (at your option) any | |
18 | * later version. | |
19 | * | |
20 | * This program is distributed in the hope that it will be useful, but | |
21 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
22 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
23 | * General Public License for more details. | |
24 | * | |
25 | * You should have received a copy of the GNU General Public License along | |
26 | * with this program; if not, write to the Free Software Foundation, Inc., | |
27 | * 675 Mass Ave, Cambridge, MA 02139, USA. | |
28 | */ | |
29 | ||
30 | /* | |
31 | * Known vendor commands: 12 bytes, first byte is opcode | |
32 | * | |
33 | * E7: read scatter gather | |
34 | * E8: read | |
35 | * E9: write | |
36 | * EA: erase | |
37 | * EB: reset | |
38 | * EC: read status | |
39 | * ED: read ID | |
40 | * EE: write CIS (?) | |
41 | * EF: compute checksum (?) | |
42 | */ | |
43 | ||
1da177e4 | 44 | #include <linux/errno.h> |
0ff71883 | 45 | #include <linux/module.h> |
1da177e4 LT |
46 | #include <linux/slab.h> |
47 | ||
48 | #include <scsi/scsi.h> | |
49 | #include <scsi/scsi_cmnd.h> | |
c20b15fd | 50 | #include <scsi/scsi_device.h> |
1da177e4 LT |
51 | |
52 | #include "usb.h" | |
53 | #include "transport.h" | |
54 | #include "protocol.h" | |
55 | #include "debug.h" | |
aa519be3 AM |
56 | #include "scsiglue.h" |
57 | ||
58 | #define DRV_NAME "ums-sddr09" | |
0ff71883 | 59 | |
4246b06a MG |
60 | MODULE_DESCRIPTION("Driver for SanDisk SDDR-09 SmartMedia reader"); |
61 | MODULE_AUTHOR("Andries Brouwer <aeb@cwi.nl>, Robert Baruch <autophile@starband.net>"); | |
62 | MODULE_LICENSE("GPL"); | |
0ff71883 AS |
63 | |
64 | static int usb_stor_sddr09_dpcm_init(struct us_data *us); | |
65 | static int sddr09_transport(struct scsi_cmnd *srb, struct us_data *us); | |
66 | static int usb_stor_sddr09_init(struct us_data *us); | |
67 | ||
68 | ||
69 | /* | |
70 | * The table of devices | |
71 | */ | |
72 | #define UNUSUAL_DEV(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax, \ | |
73 | vendorName, productName, useProtocol, useTransport, \ | |
74 | initFunction, flags) \ | |
75 | { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \ | |
f61870ee | 76 | .driver_info = (flags) } |
0ff71883 | 77 | |
6f871f9e | 78 | static struct usb_device_id sddr09_usb_ids[] = { |
0ff71883 AS |
79 | # include "unusual_sddr09.h" |
80 | { } /* Terminating entry */ | |
81 | }; | |
82 | MODULE_DEVICE_TABLE(usb, sddr09_usb_ids); | |
83 | ||
84 | #undef UNUSUAL_DEV | |
85 | ||
86 | /* | |
87 | * The flags table | |
88 | */ | |
89 | #define UNUSUAL_DEV(idVendor, idProduct, bcdDeviceMin, bcdDeviceMax, \ | |
90 | vendor_name, product_name, use_protocol, use_transport, \ | |
91 | init_function, Flags) \ | |
92 | { \ | |
93 | .vendorName = vendor_name, \ | |
94 | .productName = product_name, \ | |
95 | .useProtocol = use_protocol, \ | |
96 | .useTransport = use_transport, \ | |
97 | .initFunction = init_function, \ | |
98 | } | |
99 | ||
100 | static struct us_unusual_dev sddr09_unusual_dev_list[] = { | |
101 | # include "unusual_sddr09.h" | |
102 | { } /* Terminating entry */ | |
103 | }; | |
104 | ||
105 | #undef UNUSUAL_DEV | |
1da177e4 LT |
106 | |
107 | ||
108 | #define short_pack(lsb,msb) ( ((u16)(lsb)) | ( ((u16)(msb))<<8 ) ) | |
109 | #define LSB_of(s) ((s)&0xFF) | |
110 | #define MSB_of(s) ((s)>>8) | |
111 | ||
1da177e4 LT |
112 | /* |
113 | * First some stuff that does not belong here: | |
114 | * data on SmartMedia and other cards, completely | |
115 | * unrelated to this driver. | |
116 | * Similar stuff occurs in <linux/mtd/nand_ids.h>. | |
117 | */ | |
118 | ||
119 | struct nand_flash_dev { | |
120 | int model_id; | |
121 | int chipshift; /* 1<<cs bytes total capacity */ | |
122 | char pageshift; /* 1<<ps bytes in a page */ | |
123 | char blockshift; /* 1<<bs pages in an erase block */ | |
124 | char zoneshift; /* 1<<zs blocks in a zone */ | |
125 | /* # of logical blocks is 125/128 of this */ | |
126 | char pageadrlen; /* length of an address in bytes - 1 */ | |
127 | }; | |
128 | ||
129 | /* | |
130 | * NAND Flash Manufacturer ID Codes | |
131 | */ | |
132 | #define NAND_MFR_AMD 0x01 | |
133 | #define NAND_MFR_NATSEMI 0x8f | |
134 | #define NAND_MFR_TOSHIBA 0x98 | |
135 | #define NAND_MFR_SAMSUNG 0xec | |
136 | ||
137 | static inline char *nand_flash_manufacturer(int manuf_id) { | |
138 | switch(manuf_id) { | |
139 | case NAND_MFR_AMD: | |
140 | return "AMD"; | |
141 | case NAND_MFR_NATSEMI: | |
142 | return "NATSEMI"; | |
143 | case NAND_MFR_TOSHIBA: | |
144 | return "Toshiba"; | |
145 | case NAND_MFR_SAMSUNG: | |
146 | return "Samsung"; | |
147 | default: | |
148 | return "unknown"; | |
149 | } | |
150 | } | |
151 | ||
152 | /* | |
153 | * It looks like it is unnecessary to attach manufacturer to the | |
154 | * remaining data: SSFDC prescribes manufacturer-independent id codes. | |
155 | * | |
156 | * 256 MB NAND flash has a 5-byte ID with 2nd byte 0xaa, 0xba, 0xca or 0xda. | |
157 | */ | |
158 | ||
159 | static struct nand_flash_dev nand_flash_ids[] = { | |
160 | /* NAND flash */ | |
161 | { 0x6e, 20, 8, 4, 8, 2}, /* 1 MB */ | |
162 | { 0xe8, 20, 8, 4, 8, 2}, /* 1 MB */ | |
163 | { 0xec, 20, 8, 4, 8, 2}, /* 1 MB */ | |
164 | { 0x64, 21, 8, 4, 9, 2}, /* 2 MB */ | |
165 | { 0xea, 21, 8, 4, 9, 2}, /* 2 MB */ | |
166 | { 0x6b, 22, 9, 4, 9, 2}, /* 4 MB */ | |
167 | { 0xe3, 22, 9, 4, 9, 2}, /* 4 MB */ | |
168 | { 0xe5, 22, 9, 4, 9, 2}, /* 4 MB */ | |
169 | { 0xe6, 23, 9, 4, 10, 2}, /* 8 MB */ | |
170 | { 0x73, 24, 9, 5, 10, 2}, /* 16 MB */ | |
171 | { 0x75, 25, 9, 5, 10, 2}, /* 32 MB */ | |
172 | { 0x76, 26, 9, 5, 10, 3}, /* 64 MB */ | |
173 | { 0x79, 27, 9, 5, 10, 3}, /* 128 MB */ | |
174 | ||
175 | /* MASK ROM */ | |
176 | { 0x5d, 21, 9, 4, 8, 2}, /* 2 MB */ | |
177 | { 0xd5, 22, 9, 4, 9, 2}, /* 4 MB */ | |
178 | { 0xd6, 23, 9, 4, 10, 2}, /* 8 MB */ | |
179 | { 0x57, 24, 9, 4, 11, 2}, /* 16 MB */ | |
180 | { 0x58, 25, 9, 4, 12, 2}, /* 32 MB */ | |
181 | { 0,} | |
182 | }; | |
183 | ||
1da177e4 LT |
184 | static struct nand_flash_dev * |
185 | nand_find_id(unsigned char id) { | |
186 | int i; | |
187 | ||
52950ed4 | 188 | for (i = 0; i < ARRAY_SIZE(nand_flash_ids); i++) |
1da177e4 LT |
189 | if (nand_flash_ids[i].model_id == id) |
190 | return &(nand_flash_ids[i]); | |
191 | return NULL; | |
192 | } | |
193 | ||
194 | /* | |
195 | * ECC computation. | |
196 | */ | |
197 | static unsigned char parity[256]; | |
198 | static unsigned char ecc2[256]; | |
199 | ||
200 | static void nand_init_ecc(void) { | |
201 | int i, j, a; | |
202 | ||
203 | parity[0] = 0; | |
204 | for (i = 1; i < 256; i++) | |
205 | parity[i] = (parity[i&(i-1)] ^ 1); | |
206 | ||
207 | for (i = 0; i < 256; i++) { | |
208 | a = 0; | |
209 | for (j = 0; j < 8; j++) { | |
210 | if (i & (1<<j)) { | |
211 | if ((j & 1) == 0) | |
212 | a ^= 0x04; | |
213 | if ((j & 2) == 0) | |
214 | a ^= 0x10; | |
215 | if ((j & 4) == 0) | |
216 | a ^= 0x40; | |
217 | } | |
218 | } | |
219 | ecc2[i] = ~(a ^ (a<<1) ^ (parity[i] ? 0xa8 : 0)); | |
220 | } | |
221 | } | |
222 | ||
223 | /* compute 3-byte ecc on 256 bytes */ | |
224 | static void nand_compute_ecc(unsigned char *data, unsigned char *ecc) { | |
225 | int i, j, a; | |
4cb4f838 | 226 | unsigned char par = 0, bit, bits[8] = {0}; |
1da177e4 LT |
227 | |
228 | /* collect 16 checksum bits */ | |
229 | for (i = 0; i < 256; i++) { | |
230 | par ^= data[i]; | |
231 | bit = parity[data[i]]; | |
232 | for (j = 0; j < 8; j++) | |
233 | if ((i & (1<<j)) == 0) | |
234 | bits[j] ^= bit; | |
235 | } | |
236 | ||
237 | /* put 4+4+4 = 12 bits in the ecc */ | |
238 | a = (bits[3] << 6) + (bits[2] << 4) + (bits[1] << 2) + bits[0]; | |
239 | ecc[0] = ~(a ^ (a<<1) ^ (parity[par] ? 0xaa : 0)); | |
240 | ||
241 | a = (bits[7] << 6) + (bits[6] << 4) + (bits[5] << 2) + bits[4]; | |
242 | ecc[1] = ~(a ^ (a<<1) ^ (parity[par] ? 0xaa : 0)); | |
243 | ||
244 | ecc[2] = ecc2[par]; | |
245 | } | |
246 | ||
247 | static int nand_compare_ecc(unsigned char *data, unsigned char *ecc) { | |
248 | return (data[0] == ecc[0] && data[1] == ecc[1] && data[2] == ecc[2]); | |
249 | } | |
250 | ||
251 | static void nand_store_ecc(unsigned char *data, unsigned char *ecc) { | |
252 | memcpy(data, ecc, 3); | |
253 | } | |
254 | ||
255 | /* | |
256 | * The actual driver starts here. | |
257 | */ | |
258 | ||
f5b8cb9c MD |
259 | struct sddr09_card_info { |
260 | unsigned long capacity; /* Size of card in bytes */ | |
261 | int pagesize; /* Size of page in bytes */ | |
262 | int pageshift; /* log2 of pagesize */ | |
263 | int blocksize; /* Size of block in pages */ | |
264 | int blockshift; /* log2 of blocksize */ | |
265 | int blockmask; /* 2^blockshift - 1 */ | |
266 | int *lba_to_pba; /* logical to physical map */ | |
267 | int *pba_to_lba; /* physical to logical map */ | |
268 | int lbact; /* number of available pages */ | |
269 | int flags; | |
270 | #define SDDR09_WP 1 /* write protected */ | |
271 | }; | |
272 | ||
1da177e4 LT |
273 | /* |
274 | * On my 16MB card, control blocks have size 64 (16 real control bytes, | |
275 | * and 48 junk bytes). In reality of course the card uses 16 control bytes, | |
276 | * so the reader makes up the remaining 48. Don't know whether these numbers | |
277 | * depend on the card. For now a constant. | |
278 | */ | |
279 | #define CONTROL_SHIFT 6 | |
280 | ||
281 | /* | |
282 | * On my Combo CF/SM reader, the SM reader has LUN 1. | |
283 | * (and things fail with LUN 0). | |
284 | * It seems LUN is irrelevant for others. | |
285 | */ | |
286 | #define LUN 1 | |
287 | #define LUNBITS (LUN << 5) | |
288 | ||
289 | /* | |
290 | * LBA and PBA are unsigned ints. Special values. | |
291 | */ | |
292 | #define UNDEF 0xffffffff | |
293 | #define SPARE 0xfffffffe | |
294 | #define UNUSABLE 0xfffffffd | |
295 | ||
4c4c9432 | 296 | static const int erase_bad_lba_entries = 0; |
1da177e4 LT |
297 | |
298 | /* send vendor interface command (0x41) */ | |
299 | /* called for requests 0, 1, 8 */ | |
300 | static int | |
301 | sddr09_send_command(struct us_data *us, | |
302 | unsigned char request, | |
303 | unsigned char direction, | |
304 | unsigned char *xfer_data, | |
305 | unsigned int xfer_len) { | |
306 | unsigned int pipe; | |
307 | unsigned char requesttype = (0x41 | direction); | |
308 | int rc; | |
309 | ||
310 | // Get the receive or send control pipe number | |
311 | ||
312 | if (direction == USB_DIR_IN) | |
313 | pipe = us->recv_ctrl_pipe; | |
314 | else | |
315 | pipe = us->send_ctrl_pipe; | |
316 | ||
317 | rc = usb_stor_ctrl_transfer(us, pipe, request, requesttype, | |
318 | 0, 0, xfer_data, xfer_len); | |
0dc08a35 MD |
319 | switch (rc) { |
320 | case USB_STOR_XFER_GOOD: return 0; | |
321 | case USB_STOR_XFER_STALLED: return -EPIPE; | |
322 | default: return -EIO; | |
323 | } | |
1da177e4 LT |
324 | } |
325 | ||
326 | static int | |
327 | sddr09_send_scsi_command(struct us_data *us, | |
328 | unsigned char *command, | |
329 | unsigned int command_len) { | |
330 | return sddr09_send_command(us, 0, USB_DIR_OUT, command, command_len); | |
331 | } | |
332 | ||
333 | #if 0 | |
334 | /* | |
335 | * Test Unit Ready Command: 12 bytes. | |
336 | * byte 0: opcode: 00 | |
337 | */ | |
338 | static int | |
339 | sddr09_test_unit_ready(struct us_data *us) { | |
340 | unsigned char *command = us->iobuf; | |
341 | int result; | |
342 | ||
343 | memset(command, 0, 6); | |
344 | command[1] = LUNBITS; | |
345 | ||
346 | result = sddr09_send_scsi_command(us, command, 6); | |
347 | ||
191648d0 | 348 | usb_stor_dbg(us, "sddr09_test_unit_ready returns %d\n", result); |
1da177e4 LT |
349 | |
350 | return result; | |
351 | } | |
352 | #endif | |
353 | ||
354 | /* | |
355 | * Request Sense Command: 12 bytes. | |
356 | * byte 0: opcode: 03 | |
357 | * byte 4: data length | |
358 | */ | |
359 | static int | |
360 | sddr09_request_sense(struct us_data *us, unsigned char *sensebuf, int buflen) { | |
361 | unsigned char *command = us->iobuf; | |
362 | int result; | |
363 | ||
364 | memset(command, 0, 12); | |
365 | command[0] = 0x03; | |
366 | command[1] = LUNBITS; | |
367 | command[4] = buflen; | |
368 | ||
369 | result = sddr09_send_scsi_command(us, command, 12); | |
0dc08a35 | 370 | if (result) |
1da177e4 | 371 | return result; |
1da177e4 LT |
372 | |
373 | result = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe, | |
374 | sensebuf, buflen, NULL); | |
0dc08a35 | 375 | return (result == USB_STOR_XFER_GOOD ? 0 : -EIO); |
1da177e4 LT |
376 | } |
377 | ||
378 | /* | |
379 | * Read Command: 12 bytes. | |
380 | * byte 0: opcode: E8 | |
381 | * byte 1: last two bits: 00: read data, 01: read blockwise control, | |
382 | * 10: read both, 11: read pagewise control. | |
383 | * It turns out we need values 20, 21, 22, 23 here (LUN 1). | |
384 | * bytes 2-5: address (interpretation depends on byte 1, see below) | |
385 | * bytes 10-11: count (idem) | |
386 | * | |
387 | * A page has 512 data bytes and 64 control bytes (16 control and 48 junk). | |
388 | * A read data command gets data in 512-byte pages. | |
389 | * A read control command gets control in 64-byte chunks. | |
390 | * A read both command gets data+control in 576-byte chunks. | |
391 | * | |
392 | * Blocks are groups of 32 pages, and read blockwise control jumps to the | |
393 | * next block, while read pagewise control jumps to the next page after | |
394 | * reading a group of 64 control bytes. | |
395 | * [Here 512 = 1<<pageshift, 32 = 1<<blockshift, 64 is constant?] | |
396 | * | |
397 | * (1 MB and 2 MB cards are a bit different, but I have only a 16 MB card.) | |
398 | */ | |
399 | ||
400 | static int | |
401 | sddr09_readX(struct us_data *us, int x, unsigned long fromaddress, | |
402 | int nr_of_pages, int bulklen, unsigned char *buf, | |
403 | int use_sg) { | |
404 | ||
405 | unsigned char *command = us->iobuf; | |
406 | int result; | |
407 | ||
408 | command[0] = 0xE8; | |
409 | command[1] = LUNBITS | x; | |
410 | command[2] = MSB_of(fromaddress>>16); | |
411 | command[3] = LSB_of(fromaddress>>16); | |
412 | command[4] = MSB_of(fromaddress & 0xFFFF); | |
413 | command[5] = LSB_of(fromaddress & 0xFFFF); | |
414 | command[6] = 0; | |
415 | command[7] = 0; | |
416 | command[8] = 0; | |
417 | command[9] = 0; | |
418 | command[10] = MSB_of(nr_of_pages); | |
419 | command[11] = LSB_of(nr_of_pages); | |
420 | ||
421 | result = sddr09_send_scsi_command(us, command, 12); | |
422 | ||
0dc08a35 | 423 | if (result) { |
191648d0 JP |
424 | usb_stor_dbg(us, "Result for send_control in sddr09_read2%d %d\n", |
425 | x, result); | |
1da177e4 LT |
426 | return result; |
427 | } | |
428 | ||
429 | result = usb_stor_bulk_transfer_sg(us, us->recv_bulk_pipe, | |
430 | buf, bulklen, use_sg, NULL); | |
431 | ||
432 | if (result != USB_STOR_XFER_GOOD) { | |
191648d0 JP |
433 | usb_stor_dbg(us, "Result for bulk_transfer in sddr09_read2%d %d\n", |
434 | x, result); | |
0dc08a35 | 435 | return -EIO; |
1da177e4 | 436 | } |
0dc08a35 | 437 | return 0; |
1da177e4 LT |
438 | } |
439 | ||
440 | /* | |
441 | * Read Data | |
442 | * | |
443 | * fromaddress counts data shorts: | |
444 | * increasing it by 256 shifts the bytestream by 512 bytes; | |
445 | * the last 8 bits are ignored. | |
446 | * | |
447 | * nr_of_pages counts pages of size (1 << pageshift). | |
448 | */ | |
449 | static int | |
450 | sddr09_read20(struct us_data *us, unsigned long fromaddress, | |
451 | int nr_of_pages, int pageshift, unsigned char *buf, int use_sg) { | |
452 | int bulklen = nr_of_pages << pageshift; | |
453 | ||
454 | /* The last 8 bits of fromaddress are ignored. */ | |
455 | return sddr09_readX(us, 0, fromaddress, nr_of_pages, bulklen, | |
456 | buf, use_sg); | |
457 | } | |
458 | ||
459 | /* | |
460 | * Read Blockwise Control | |
461 | * | |
462 | * fromaddress gives the starting position (as in read data; | |
463 | * the last 8 bits are ignored); increasing it by 32*256 shifts | |
464 | * the output stream by 64 bytes. | |
465 | * | |
466 | * count counts control groups of size (1 << controlshift). | |
467 | * For me, controlshift = 6. Is this constant? | |
468 | * | |
469 | * After getting one control group, jump to the next block | |
470 | * (fromaddress += 8192). | |
471 | */ | |
472 | static int | |
473 | sddr09_read21(struct us_data *us, unsigned long fromaddress, | |
474 | int count, int controlshift, unsigned char *buf, int use_sg) { | |
475 | ||
476 | int bulklen = (count << controlshift); | |
477 | return sddr09_readX(us, 1, fromaddress, count, bulklen, | |
478 | buf, use_sg); | |
479 | } | |
480 | ||
481 | /* | |
482 | * Read both Data and Control | |
483 | * | |
484 | * fromaddress counts data shorts, ignoring control: | |
485 | * increasing it by 256 shifts the bytestream by 576 = 512+64 bytes; | |
486 | * the last 8 bits are ignored. | |
487 | * | |
488 | * nr_of_pages counts pages of size (1 << pageshift) + (1 << controlshift). | |
489 | */ | |
490 | static int | |
491 | sddr09_read22(struct us_data *us, unsigned long fromaddress, | |
492 | int nr_of_pages, int pageshift, unsigned char *buf, int use_sg) { | |
493 | ||
494 | int bulklen = (nr_of_pages << pageshift) + (nr_of_pages << CONTROL_SHIFT); | |
191648d0 | 495 | usb_stor_dbg(us, "reading %d pages, %d bytes\n", nr_of_pages, bulklen); |
1da177e4 LT |
496 | return sddr09_readX(us, 2, fromaddress, nr_of_pages, bulklen, |
497 | buf, use_sg); | |
498 | } | |
499 | ||
500 | #if 0 | |
501 | /* | |
502 | * Read Pagewise Control | |
503 | * | |
504 | * fromaddress gives the starting position (as in read data; | |
505 | * the last 8 bits are ignored); increasing it by 256 shifts | |
506 | * the output stream by 64 bytes. | |
507 | * | |
508 | * count counts control groups of size (1 << controlshift). | |
509 | * For me, controlshift = 6. Is this constant? | |
510 | * | |
511 | * After getting one control group, jump to the next page | |
512 | * (fromaddress += 256). | |
513 | */ | |
514 | static int | |
515 | sddr09_read23(struct us_data *us, unsigned long fromaddress, | |
516 | int count, int controlshift, unsigned char *buf, int use_sg) { | |
517 | ||
518 | int bulklen = (count << controlshift); | |
519 | return sddr09_readX(us, 3, fromaddress, count, bulklen, | |
520 | buf, use_sg); | |
521 | } | |
522 | #endif | |
523 | ||
524 | /* | |
525 | * Erase Command: 12 bytes. | |
526 | * byte 0: opcode: EA | |
527 | * bytes 6-9: erase address (big-endian, counting shorts, sector aligned). | |
528 | * | |
529 | * Always precisely one block is erased; bytes 2-5 and 10-11 are ignored. | |
530 | * The byte address being erased is 2*Eaddress. | |
531 | * The CIS cannot be erased. | |
532 | */ | |
533 | static int | |
534 | sddr09_erase(struct us_data *us, unsigned long Eaddress) { | |
535 | unsigned char *command = us->iobuf; | |
536 | int result; | |
537 | ||
191648d0 | 538 | usb_stor_dbg(us, "erase address %lu\n", Eaddress); |
1da177e4 LT |
539 | |
540 | memset(command, 0, 12); | |
541 | command[0] = 0xEA; | |
542 | command[1] = LUNBITS; | |
543 | command[6] = MSB_of(Eaddress>>16); | |
544 | command[7] = LSB_of(Eaddress>>16); | |
545 | command[8] = MSB_of(Eaddress & 0xFFFF); | |
546 | command[9] = LSB_of(Eaddress & 0xFFFF); | |
547 | ||
548 | result = sddr09_send_scsi_command(us, command, 12); | |
549 | ||
0dc08a35 | 550 | if (result) |
191648d0 JP |
551 | usb_stor_dbg(us, "Result for send_control in sddr09_erase %d\n", |
552 | result); | |
1da177e4 LT |
553 | |
554 | return result; | |
555 | } | |
556 | ||
557 | /* | |
558 | * Write CIS Command: 12 bytes. | |
559 | * byte 0: opcode: EE | |
560 | * bytes 2-5: write address in shorts | |
561 | * bytes 10-11: sector count | |
562 | * | |
563 | * This writes at the indicated address. Don't know how it differs | |
564 | * from E9. Maybe it does not erase? However, it will also write to | |
565 | * the CIS. | |
566 | * | |
567 | * When two such commands on the same page follow each other directly, | |
568 | * the second one is not done. | |
569 | */ | |
570 | ||
571 | /* | |
572 | * Write Command: 12 bytes. | |
573 | * byte 0: opcode: E9 | |
574 | * bytes 2-5: write address (big-endian, counting shorts, sector aligned). | |
575 | * bytes 6-9: erase address (big-endian, counting shorts, sector aligned). | |
576 | * bytes 10-11: sector count (big-endian, in 512-byte sectors). | |
577 | * | |
578 | * If write address equals erase address, the erase is done first, | |
579 | * otherwise the write is done first. When erase address equals zero | |
580 | * no erase is done? | |
581 | */ | |
582 | static int | |
583 | sddr09_writeX(struct us_data *us, | |
584 | unsigned long Waddress, unsigned long Eaddress, | |
585 | int nr_of_pages, int bulklen, unsigned char *buf, int use_sg) { | |
586 | ||
587 | unsigned char *command = us->iobuf; | |
588 | int result; | |
589 | ||
590 | command[0] = 0xE9; | |
591 | command[1] = LUNBITS; | |
592 | ||
593 | command[2] = MSB_of(Waddress>>16); | |
594 | command[3] = LSB_of(Waddress>>16); | |
595 | command[4] = MSB_of(Waddress & 0xFFFF); | |
596 | command[5] = LSB_of(Waddress & 0xFFFF); | |
597 | ||
598 | command[6] = MSB_of(Eaddress>>16); | |
599 | command[7] = LSB_of(Eaddress>>16); | |
600 | command[8] = MSB_of(Eaddress & 0xFFFF); | |
601 | command[9] = LSB_of(Eaddress & 0xFFFF); | |
602 | ||
603 | command[10] = MSB_of(nr_of_pages); | |
604 | command[11] = LSB_of(nr_of_pages); | |
605 | ||
606 | result = sddr09_send_scsi_command(us, command, 12); | |
607 | ||
0dc08a35 | 608 | if (result) { |
191648d0 JP |
609 | usb_stor_dbg(us, "Result for send_control in sddr09_writeX %d\n", |
610 | result); | |
1da177e4 LT |
611 | return result; |
612 | } | |
613 | ||
614 | result = usb_stor_bulk_transfer_sg(us, us->send_bulk_pipe, | |
615 | buf, bulklen, use_sg, NULL); | |
616 | ||
617 | if (result != USB_STOR_XFER_GOOD) { | |
191648d0 JP |
618 | usb_stor_dbg(us, "Result for bulk_transfer in sddr09_writeX %d\n", |
619 | result); | |
0dc08a35 | 620 | return -EIO; |
1da177e4 | 621 | } |
0dc08a35 | 622 | return 0; |
1da177e4 LT |
623 | } |
624 | ||
625 | /* erase address, write same address */ | |
626 | static int | |
627 | sddr09_write_inplace(struct us_data *us, unsigned long address, | |
628 | int nr_of_pages, int pageshift, unsigned char *buf, | |
629 | int use_sg) { | |
630 | int bulklen = (nr_of_pages << pageshift) + (nr_of_pages << CONTROL_SHIFT); | |
631 | return sddr09_writeX(us, address, address, nr_of_pages, bulklen, | |
632 | buf, use_sg); | |
633 | } | |
634 | ||
635 | #if 0 | |
636 | /* | |
637 | * Read Scatter Gather Command: 3+4n bytes. | |
638 | * byte 0: opcode E7 | |
639 | * byte 2: n | |
640 | * bytes 4i-1,4i,4i+1: page address | |
641 | * byte 4i+2: page count | |
642 | * (i=1..n) | |
643 | * | |
644 | * This reads several pages from the card to a single memory buffer. | |
645 | * The last two bits of byte 1 have the same meaning as for E8. | |
646 | */ | |
647 | static int | |
648 | sddr09_read_sg_test_only(struct us_data *us) { | |
649 | unsigned char *command = us->iobuf; | |
650 | int result, bulklen, nsg, ct; | |
651 | unsigned char *buf; | |
652 | unsigned long address; | |
653 | ||
654 | nsg = bulklen = 0; | |
655 | command[0] = 0xE7; | |
656 | command[1] = LUNBITS; | |
657 | command[2] = 0; | |
658 | address = 040000; ct = 1; | |
659 | nsg++; | |
660 | bulklen += (ct << 9); | |
661 | command[4*nsg+2] = ct; | |
662 | command[4*nsg+1] = ((address >> 9) & 0xFF); | |
663 | command[4*nsg+0] = ((address >> 17) & 0xFF); | |
664 | command[4*nsg-1] = ((address >> 25) & 0xFF); | |
665 | ||
666 | address = 0340000; ct = 1; | |
667 | nsg++; | |
668 | bulklen += (ct << 9); | |
669 | command[4*nsg+2] = ct; | |
670 | command[4*nsg+1] = ((address >> 9) & 0xFF); | |
671 | command[4*nsg+0] = ((address >> 17) & 0xFF); | |
672 | command[4*nsg-1] = ((address >> 25) & 0xFF); | |
673 | ||
674 | address = 01000000; ct = 2; | |
675 | nsg++; | |
676 | bulklen += (ct << 9); | |
677 | command[4*nsg+2] = ct; | |
678 | command[4*nsg+1] = ((address >> 9) & 0xFF); | |
679 | command[4*nsg+0] = ((address >> 17) & 0xFF); | |
680 | command[4*nsg-1] = ((address >> 25) & 0xFF); | |
681 | ||
682 | command[2] = nsg; | |
683 | ||
684 | result = sddr09_send_scsi_command(us, command, 4*nsg+3); | |
685 | ||
0dc08a35 | 686 | if (result) { |
191648d0 JP |
687 | usb_stor_dbg(us, "Result for send_control in sddr09_read_sg %d\n", |
688 | result); | |
1da177e4 LT |
689 | return result; |
690 | } | |
691 | ||
5cbded58 | 692 | buf = kmalloc(bulklen, GFP_NOIO); |
1da177e4 | 693 | if (!buf) |
0dc08a35 | 694 | return -ENOMEM; |
1da177e4 LT |
695 | |
696 | result = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe, | |
697 | buf, bulklen, NULL); | |
698 | kfree(buf); | |
699 | if (result != USB_STOR_XFER_GOOD) { | |
191648d0 JP |
700 | usb_stor_dbg(us, "Result for bulk_transfer in sddr09_read_sg %d\n", |
701 | result); | |
0dc08a35 | 702 | return -EIO; |
1da177e4 LT |
703 | } |
704 | ||
0dc08a35 | 705 | return 0; |
1da177e4 LT |
706 | } |
707 | #endif | |
708 | ||
709 | /* | |
710 | * Read Status Command: 12 bytes. | |
711 | * byte 0: opcode: EC | |
712 | * | |
713 | * Returns 64 bytes, all zero except for the first. | |
714 | * bit 0: 1: Error | |
715 | * bit 5: 1: Suspended | |
716 | * bit 6: 1: Ready | |
717 | * bit 7: 1: Not write-protected | |
718 | */ | |
719 | ||
720 | static int | |
721 | sddr09_read_status(struct us_data *us, unsigned char *status) { | |
722 | ||
723 | unsigned char *command = us->iobuf; | |
724 | unsigned char *data = us->iobuf; | |
725 | int result; | |
726 | ||
191648d0 | 727 | usb_stor_dbg(us, "Reading status...\n"); |
1da177e4 LT |
728 | |
729 | memset(command, 0, 12); | |
730 | command[0] = 0xEC; | |
731 | command[1] = LUNBITS; | |
732 | ||
733 | result = sddr09_send_scsi_command(us, command, 12); | |
0dc08a35 | 734 | if (result) |
1da177e4 LT |
735 | return result; |
736 | ||
737 | result = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe, | |
738 | data, 64, NULL); | |
739 | *status = data[0]; | |
0dc08a35 | 740 | return (result == USB_STOR_XFER_GOOD ? 0 : -EIO); |
1da177e4 LT |
741 | } |
742 | ||
743 | static int | |
744 | sddr09_read_data(struct us_data *us, | |
745 | unsigned long address, | |
746 | unsigned int sectors) { | |
747 | ||
748 | struct sddr09_card_info *info = (struct sddr09_card_info *) us->extra; | |
749 | unsigned char *buffer; | |
750 | unsigned int lba, maxlba, pba; | |
751 | unsigned int page, pages; | |
1f6f31a0 JA |
752 | unsigned int len, offset; |
753 | struct scatterlist *sg; | |
1da177e4 LT |
754 | int result; |
755 | ||
a6c976c6 MD |
756 | // Figure out the initial LBA and page |
757 | lba = address >> info->blockshift; | |
758 | page = (address & info->blockmask); | |
759 | maxlba = info->capacity >> (info->pageshift + info->blockshift); | |
760 | if (lba >= maxlba) | |
761 | return -EIO; | |
762 | ||
1da177e4 LT |
763 | // Since we only read in one block at a time, we have to create |
764 | // a bounce buffer and move the data a piece at a time between the | |
765 | // bounce buffer and the actual transfer buffer. | |
766 | ||
767 | len = min(sectors, (unsigned int) info->blocksize) * info->pagesize; | |
768 | buffer = kmalloc(len, GFP_NOIO); | |
fd233925 | 769 | if (!buffer) |
0dc08a35 | 770 | return -ENOMEM; |
1da177e4 | 771 | |
1da177e4 LT |
772 | // This could be made much more efficient by checking for |
773 | // contiguous LBA's. Another exercise left to the student. | |
774 | ||
0dc08a35 | 775 | result = 0; |
1f6f31a0 JA |
776 | offset = 0; |
777 | sg = NULL; | |
1da177e4 LT |
778 | |
779 | while (sectors > 0) { | |
780 | ||
781 | /* Find number of pages we can read in this block */ | |
782 | pages = min(sectors, info->blocksize - page); | |
783 | len = pages << info->pageshift; | |
784 | ||
785 | /* Not overflowing capacity? */ | |
786 | if (lba >= maxlba) { | |
191648d0 JP |
787 | usb_stor_dbg(us, "Error: Requested lba %u exceeds maximum %u\n", |
788 | lba, maxlba); | |
0dc08a35 | 789 | result = -EIO; |
1da177e4 LT |
790 | break; |
791 | } | |
792 | ||
793 | /* Find where this lba lives on disk */ | |
794 | pba = info->lba_to_pba[lba]; | |
795 | ||
796 | if (pba == UNDEF) { /* this lba was never written */ | |
797 | ||
191648d0 JP |
798 | usb_stor_dbg(us, "Read %d zero pages (LBA %d) page %d\n", |
799 | pages, lba, page); | |
1da177e4 | 800 | |
f0183a33 FB |
801 | /* |
802 | * This is not really an error. It just means | |
803 | * that the block has never been written. | |
804 | * Instead of returning an error | |
805 | * it is better to return all zero data. | |
806 | */ | |
1da177e4 LT |
807 | |
808 | memset(buffer, 0, len); | |
809 | ||
810 | } else { | |
191648d0 JP |
811 | usb_stor_dbg(us, "Read %d pages, from PBA %d (LBA %d) page %d\n", |
812 | pages, pba, lba, page); | |
1da177e4 LT |
813 | |
814 | address = ((pba << info->blockshift) + page) << | |
815 | info->pageshift; | |
816 | ||
817 | result = sddr09_read20(us, address>>1, | |
818 | pages, info->pageshift, buffer, 0); | |
0dc08a35 | 819 | if (result) |
1da177e4 LT |
820 | break; |
821 | } | |
822 | ||
823 | // Store the data in the transfer buffer | |
824 | usb_stor_access_xfer_buf(buffer, len, us->srb, | |
1f6f31a0 | 825 | &sg, &offset, TO_XFER_BUF); |
1da177e4 LT |
826 | |
827 | page = 0; | |
828 | lba++; | |
829 | sectors -= pages; | |
830 | } | |
831 | ||
832 | kfree(buffer); | |
833 | return result; | |
834 | } | |
835 | ||
836 | static unsigned int | |
837 | sddr09_find_unused_pba(struct sddr09_card_info *info, unsigned int lba) { | |
838 | static unsigned int lastpba = 1; | |
839 | int zonestart, end, i; | |
840 | ||
841 | zonestart = (lba/1000) << 10; | |
842 | end = info->capacity >> (info->blockshift + info->pageshift); | |
843 | end -= zonestart; | |
844 | if (end > 1024) | |
845 | end = 1024; | |
846 | ||
847 | for (i = lastpba+1; i < end; i++) { | |
848 | if (info->pba_to_lba[zonestart+i] == UNDEF) { | |
849 | lastpba = i; | |
850 | return zonestart+i; | |
851 | } | |
852 | } | |
853 | for (i = 0; i <= lastpba; i++) { | |
854 | if (info->pba_to_lba[zonestart+i] == UNDEF) { | |
855 | lastpba = i; | |
856 | return zonestart+i; | |
857 | } | |
858 | } | |
859 | return 0; | |
860 | } | |
861 | ||
862 | static int | |
863 | sddr09_write_lba(struct us_data *us, unsigned int lba, | |
864 | unsigned int page, unsigned int pages, | |
865 | unsigned char *ptr, unsigned char *blockbuffer) { | |
866 | ||
867 | struct sddr09_card_info *info = (struct sddr09_card_info *) us->extra; | |
868 | unsigned long address; | |
869 | unsigned int pba, lbap; | |
870 | unsigned int pagelen; | |
871 | unsigned char *bptr, *cptr, *xptr; | |
872 | unsigned char ecc[3]; | |
92190e36 | 873 | int i, result; |
1da177e4 LT |
874 | |
875 | lbap = ((lba % 1000) << 1) | 0x1000; | |
876 | if (parity[MSB_of(lbap) ^ LSB_of(lbap)]) | |
877 | lbap ^= 1; | |
878 | pba = info->lba_to_pba[lba]; | |
1da177e4 LT |
879 | |
880 | if (pba == UNDEF) { | |
881 | pba = sddr09_find_unused_pba(info, lba); | |
882 | if (!pba) { | |
6f8aa65b FS |
883 | printk(KERN_WARNING |
884 | "sddr09_write_lba: Out of unused blocks\n"); | |
0dc08a35 | 885 | return -ENOSPC; |
1da177e4 LT |
886 | } |
887 | info->pba_to_lba[pba] = lba; | |
888 | info->lba_to_pba[lba] = pba; | |
1da177e4 LT |
889 | } |
890 | ||
891 | if (pba == 1) { | |
f0183a33 FB |
892 | /* |
893 | * Maybe it is impossible to write to PBA 1. | |
894 | * Fake success, but don't do anything. | |
895 | */ | |
6f8aa65b | 896 | printk(KERN_WARNING "sddr09: avoid writing to pba 1\n"); |
0dc08a35 | 897 | return 0; |
1da177e4 LT |
898 | } |
899 | ||
900 | pagelen = (1 << info->pageshift) + (1 << CONTROL_SHIFT); | |
901 | ||
902 | /* read old contents */ | |
903 | address = (pba << (info->pageshift + info->blockshift)); | |
904 | result = sddr09_read22(us, address>>1, info->blocksize, | |
905 | info->pageshift, blockbuffer, 0); | |
0dc08a35 | 906 | if (result) |
1da177e4 LT |
907 | return result; |
908 | ||
909 | /* check old contents and fill lba */ | |
910 | for (i = 0; i < info->blocksize; i++) { | |
911 | bptr = blockbuffer + i*pagelen; | |
912 | cptr = bptr + info->pagesize; | |
913 | nand_compute_ecc(bptr, ecc); | |
914 | if (!nand_compare_ecc(cptr+13, ecc)) { | |
191648d0 JP |
915 | usb_stor_dbg(us, "Warning: bad ecc in page %d- of pba %d\n", |
916 | i, pba); | |
1da177e4 LT |
917 | nand_store_ecc(cptr+13, ecc); |
918 | } | |
919 | nand_compute_ecc(bptr+(info->pagesize / 2), ecc); | |
920 | if (!nand_compare_ecc(cptr+8, ecc)) { | |
191648d0 JP |
921 | usb_stor_dbg(us, "Warning: bad ecc in page %d+ of pba %d\n", |
922 | i, pba); | |
1da177e4 LT |
923 | nand_store_ecc(cptr+8, ecc); |
924 | } | |
925 | cptr[6] = cptr[11] = MSB_of(lbap); | |
926 | cptr[7] = cptr[12] = LSB_of(lbap); | |
927 | } | |
928 | ||
929 | /* copy in new stuff and compute ECC */ | |
930 | xptr = ptr; | |
931 | for (i = page; i < page+pages; i++) { | |
932 | bptr = blockbuffer + i*pagelen; | |
933 | cptr = bptr + info->pagesize; | |
934 | memcpy(bptr, xptr, info->pagesize); | |
935 | xptr += info->pagesize; | |
936 | nand_compute_ecc(bptr, ecc); | |
937 | nand_store_ecc(cptr+13, ecc); | |
938 | nand_compute_ecc(bptr+(info->pagesize / 2), ecc); | |
939 | nand_store_ecc(cptr+8, ecc); | |
940 | } | |
941 | ||
191648d0 | 942 | usb_stor_dbg(us, "Rewrite PBA %d (LBA %d)\n", pba, lba); |
1da177e4 LT |
943 | |
944 | result = sddr09_write_inplace(us, address>>1, info->blocksize, | |
945 | info->pageshift, blockbuffer, 0); | |
946 | ||
191648d0 | 947 | usb_stor_dbg(us, "sddr09_write_inplace returns %d\n", result); |
1da177e4 LT |
948 | |
949 | #if 0 | |
950 | { | |
951 | unsigned char status = 0; | |
952 | int result2 = sddr09_read_status(us, &status); | |
0dc08a35 | 953 | if (result2) |
191648d0 | 954 | usb_stor_dbg(us, "cannot read status\n"); |
1da177e4 | 955 | else if (status != 0xc0) |
191648d0 | 956 | usb_stor_dbg(us, "status after write: 0x%x\n", status); |
1da177e4 LT |
957 | } |
958 | #endif | |
959 | ||
960 | #if 0 | |
961 | { | |
962 | int result2 = sddr09_test_unit_ready(us); | |
963 | } | |
964 | #endif | |
965 | ||
966 | return result; | |
967 | } | |
968 | ||
969 | static int | |
970 | sddr09_write_data(struct us_data *us, | |
971 | unsigned long address, | |
972 | unsigned int sectors) { | |
973 | ||
974 | struct sddr09_card_info *info = (struct sddr09_card_info *) us->extra; | |
a6c976c6 | 975 | unsigned int lba, maxlba, page, pages; |
1da177e4 LT |
976 | unsigned int pagelen, blocklen; |
977 | unsigned char *blockbuffer; | |
978 | unsigned char *buffer; | |
1f6f31a0 JA |
979 | unsigned int len, offset; |
980 | struct scatterlist *sg; | |
1da177e4 LT |
981 | int result; |
982 | ||
f0183a33 | 983 | /* Figure out the initial LBA and page */ |
a6c976c6 MD |
984 | lba = address >> info->blockshift; |
985 | page = (address & info->blockmask); | |
986 | maxlba = info->capacity >> (info->pageshift + info->blockshift); | |
987 | if (lba >= maxlba) | |
988 | return -EIO; | |
989 | ||
f0183a33 FB |
990 | /* |
991 | * blockbuffer is used for reading in the old data, overwriting | |
992 | * with the new data, and performing ECC calculations | |
993 | */ | |
1da177e4 | 994 | |
f0183a33 FB |
995 | /* |
996 | * TODO: instead of doing kmalloc/kfree for each write, | |
997 | * add a bufferpointer to the info structure | |
998 | */ | |
1da177e4 LT |
999 | |
1000 | pagelen = (1 << info->pageshift) + (1 << CONTROL_SHIFT); | |
1001 | blocklen = (pagelen << info->blockshift); | |
1002 | blockbuffer = kmalloc(blocklen, GFP_NOIO); | |
fd233925 | 1003 | if (!blockbuffer) |
0dc08a35 | 1004 | return -ENOMEM; |
1da177e4 | 1005 | |
f0183a33 FB |
1006 | /* |
1007 | * Since we don't write the user data directly to the device, | |
1008 | * we have to create a bounce buffer and move the data a piece | |
1009 | * at a time between the bounce buffer and the actual transfer buffer. | |
1010 | */ | |
1da177e4 LT |
1011 | |
1012 | len = min(sectors, (unsigned int) info->blocksize) * info->pagesize; | |
1013 | buffer = kmalloc(len, GFP_NOIO); | |
fd233925 | 1014 | if (!buffer) { |
1da177e4 | 1015 | kfree(blockbuffer); |
0dc08a35 | 1016 | return -ENOMEM; |
1da177e4 LT |
1017 | } |
1018 | ||
0dc08a35 | 1019 | result = 0; |
1f6f31a0 JA |
1020 | offset = 0; |
1021 | sg = NULL; | |
1da177e4 LT |
1022 | |
1023 | while (sectors > 0) { | |
1024 | ||
f0183a33 | 1025 | /* Write as many sectors as possible in this block */ |
1da177e4 LT |
1026 | |
1027 | pages = min(sectors, info->blocksize - page); | |
1028 | len = (pages << info->pageshift); | |
1029 | ||
a6c976c6 MD |
1030 | /* Not overflowing capacity? */ |
1031 | if (lba >= maxlba) { | |
191648d0 JP |
1032 | usb_stor_dbg(us, "Error: Requested lba %u exceeds maximum %u\n", |
1033 | lba, maxlba); | |
a6c976c6 MD |
1034 | result = -EIO; |
1035 | break; | |
1036 | } | |
1037 | ||
f0183a33 | 1038 | /* Get the data from the transfer buffer */ |
1da177e4 | 1039 | usb_stor_access_xfer_buf(buffer, len, us->srb, |
1f6f31a0 | 1040 | &sg, &offset, FROM_XFER_BUF); |
1da177e4 LT |
1041 | |
1042 | result = sddr09_write_lba(us, lba, page, pages, | |
1043 | buffer, blockbuffer); | |
0dc08a35 | 1044 | if (result) |
1da177e4 LT |
1045 | break; |
1046 | ||
1047 | page = 0; | |
1048 | lba++; | |
1049 | sectors -= pages; | |
1050 | } | |
1051 | ||
1052 | kfree(buffer); | |
1053 | kfree(blockbuffer); | |
1054 | ||
1055 | return result; | |
1056 | } | |
1057 | ||
1058 | static int | |
1059 | sddr09_read_control(struct us_data *us, | |
1060 | unsigned long address, | |
1061 | unsigned int blocks, | |
1062 | unsigned char *content, | |
1063 | int use_sg) { | |
1064 | ||
191648d0 JP |
1065 | usb_stor_dbg(us, "Read control address %lu, blocks %d\n", |
1066 | address, blocks); | |
1da177e4 LT |
1067 | |
1068 | return sddr09_read21(us, address, blocks, | |
1069 | CONTROL_SHIFT, content, use_sg); | |
1070 | } | |
1071 | ||
1072 | /* | |
1073 | * Read Device ID Command: 12 bytes. | |
1074 | * byte 0: opcode: ED | |
1075 | * | |
1076 | * Returns 2 bytes: Manufacturer ID and Device ID. | |
1077 | * On more recent cards 3 bytes: the third byte is an option code A5 | |
1078 | * signifying that the secret command to read an 128-bit ID is available. | |
1079 | * On still more recent cards 4 bytes: the fourth byte C0 means that | |
1080 | * a second read ID cmd is available. | |
1081 | */ | |
1082 | static int | |
1083 | sddr09_read_deviceID(struct us_data *us, unsigned char *deviceID) { | |
1084 | unsigned char *command = us->iobuf; | |
1085 | unsigned char *content = us->iobuf; | |
1086 | int result, i; | |
1087 | ||
1088 | memset(command, 0, 12); | |
1089 | command[0] = 0xED; | |
1090 | command[1] = LUNBITS; | |
1091 | ||
1092 | result = sddr09_send_scsi_command(us, command, 12); | |
0dc08a35 | 1093 | if (result) |
1da177e4 LT |
1094 | return result; |
1095 | ||
1096 | result = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe, | |
1097 | content, 64, NULL); | |
1098 | ||
1099 | for (i = 0; i < 4; i++) | |
1100 | deviceID[i] = content[i]; | |
1101 | ||
0dc08a35 | 1102 | return (result == USB_STOR_XFER_GOOD ? 0 : -EIO); |
1da177e4 LT |
1103 | } |
1104 | ||
1105 | static int | |
1106 | sddr09_get_wp(struct us_data *us, struct sddr09_card_info *info) { | |
1107 | int result; | |
1108 | unsigned char status; | |
ef976ea3 | 1109 | const char *wp_fmt; |
1da177e4 LT |
1110 | |
1111 | result = sddr09_read_status(us, &status); | |
0dc08a35 | 1112 | if (result) { |
191648d0 | 1113 | usb_stor_dbg(us, "read_status fails\n"); |
1da177e4 LT |
1114 | return result; |
1115 | } | |
1da177e4 LT |
1116 | if ((status & 0x80) == 0) { |
1117 | info->flags |= SDDR09_WP; /* write protected */ | |
ef976ea3 VD |
1118 | wp_fmt = " WP"; |
1119 | } else { | |
1120 | wp_fmt = ""; | |
1da177e4 | 1121 | } |
ef976ea3 VD |
1122 | usb_stor_dbg(us, "status 0x%02X%s%s%s%s\n", status, wp_fmt, |
1123 | status & 0x40 ? " Ready" : "", | |
1124 | status & LUNBITS ? " Suspended" : "", | |
1125 | status & 0x01 ? " Error" : ""); | |
1126 | ||
0dc08a35 | 1127 | return 0; |
1da177e4 LT |
1128 | } |
1129 | ||
1130 | #if 0 | |
1131 | /* | |
1132 | * Reset Command: 12 bytes. | |
1133 | * byte 0: opcode: EB | |
1134 | */ | |
1135 | static int | |
1136 | sddr09_reset(struct us_data *us) { | |
1137 | ||
1138 | unsigned char *command = us->iobuf; | |
1139 | ||
1140 | memset(command, 0, 12); | |
1141 | command[0] = 0xEB; | |
1142 | command[1] = LUNBITS; | |
1143 | ||
1144 | return sddr09_send_scsi_command(us, command, 12); | |
1145 | } | |
1146 | #endif | |
1147 | ||
1148 | static struct nand_flash_dev * | |
1149 | sddr09_get_cardinfo(struct us_data *us, unsigned char flags) { | |
1150 | struct nand_flash_dev *cardinfo; | |
1151 | unsigned char deviceID[4]; | |
1152 | char blurbtxt[256]; | |
1153 | int result; | |
1154 | ||
191648d0 | 1155 | usb_stor_dbg(us, "Reading capacity...\n"); |
1da177e4 LT |
1156 | |
1157 | result = sddr09_read_deviceID(us, deviceID); | |
1158 | ||
0dc08a35 | 1159 | if (result) { |
191648d0 | 1160 | usb_stor_dbg(us, "Result of read_deviceID is %d\n", result); |
6f8aa65b | 1161 | printk(KERN_WARNING "sddr09: could not read card info\n"); |
1da177e4 LT |
1162 | return NULL; |
1163 | } | |
1164 | ||
7adce467 | 1165 | sprintf(blurbtxt, "sddr09: Found Flash card, ID = %4ph", deviceID); |
1da177e4 LT |
1166 | |
1167 | /* Byte 0 is the manufacturer */ | |
1168 | sprintf(blurbtxt + strlen(blurbtxt), | |
1169 | ": Manuf. %s", | |
1170 | nand_flash_manufacturer(deviceID[0])); | |
1171 | ||
1172 | /* Byte 1 is the device type */ | |
1173 | cardinfo = nand_find_id(deviceID[1]); | |
1174 | if (cardinfo) { | |
f0183a33 FB |
1175 | /* |
1176 | * MB or MiB? It is neither. A 16 MB card has | |
1177 | * 17301504 raw bytes, of which 16384000 are | |
1178 | * usable for user data. | |
1179 | */ | |
1da177e4 LT |
1180 | sprintf(blurbtxt + strlen(blurbtxt), |
1181 | ", %d MB", 1<<(cardinfo->chipshift - 20)); | |
1182 | } else { | |
1183 | sprintf(blurbtxt + strlen(blurbtxt), | |
1184 | ", type unrecognized"); | |
1185 | } | |
1186 | ||
1187 | /* Byte 2 is code to signal availability of 128-bit ID */ | |
1188 | if (deviceID[2] == 0xa5) { | |
1189 | sprintf(blurbtxt + strlen(blurbtxt), | |
1190 | ", 128-bit ID"); | |
1191 | } | |
1192 | ||
1193 | /* Byte 3 announces the availability of another read ID command */ | |
1194 | if (deviceID[3] == 0xc0) { | |
1195 | sprintf(blurbtxt + strlen(blurbtxt), | |
1196 | ", extra cmd"); | |
1197 | } | |
1198 | ||
1199 | if (flags & SDDR09_WP) | |
1200 | sprintf(blurbtxt + strlen(blurbtxt), | |
1201 | ", WP"); | |
1202 | ||
6f8aa65b | 1203 | printk(KERN_WARNING "%s\n", blurbtxt); |
1da177e4 LT |
1204 | |
1205 | return cardinfo; | |
1206 | } | |
1207 | ||
1208 | static int | |
1209 | sddr09_read_map(struct us_data *us) { | |
1210 | ||
1211 | struct sddr09_card_info *info = (struct sddr09_card_info *) us->extra; | |
1212 | int numblocks, alloc_len, alloc_blocks; | |
1213 | int i, j, result; | |
1214 | unsigned char *buffer, *buffer_end, *ptr; | |
1215 | unsigned int lba, lbact; | |
1216 | ||
1217 | if (!info->capacity) | |
1218 | return -1; | |
1219 | ||
f0183a33 FB |
1220 | /* |
1221 | * size of a block is 1 << (blockshift + pageshift) bytes | |
1222 | * divide into the total capacity to get the number of blocks | |
1223 | */ | |
1da177e4 LT |
1224 | |
1225 | numblocks = info->capacity >> (info->blockshift + info->pageshift); | |
1226 | ||
f0183a33 FB |
1227 | /* |
1228 | * read 64 bytes for every block (actually 1 << CONTROL_SHIFT) | |
1229 | * but only use a 64 KB buffer | |
1230 | * buffer size used must be a multiple of (1 << CONTROL_SHIFT) | |
1231 | */ | |
1da177e4 LT |
1232 | #define SDDR09_READ_MAP_BUFSZ 65536 |
1233 | ||
1234 | alloc_blocks = min(numblocks, SDDR09_READ_MAP_BUFSZ >> CONTROL_SHIFT); | |
1235 | alloc_len = (alloc_blocks << CONTROL_SHIFT); | |
1236 | buffer = kmalloc(alloc_len, GFP_NOIO); | |
fd233925 | 1237 | if (!buffer) { |
1da177e4 LT |
1238 | result = -1; |
1239 | goto done; | |
1240 | } | |
1241 | buffer_end = buffer + alloc_len; | |
1242 | ||
1243 | #undef SDDR09_READ_MAP_BUFSZ | |
1244 | ||
1245 | kfree(info->lba_to_pba); | |
1246 | kfree(info->pba_to_lba); | |
1247 | info->lba_to_pba = kmalloc(numblocks*sizeof(int), GFP_NOIO); | |
1248 | info->pba_to_lba = kmalloc(numblocks*sizeof(int), GFP_NOIO); | |
1249 | ||
1250 | if (info->lba_to_pba == NULL || info->pba_to_lba == NULL) { | |
6f8aa65b | 1251 | printk(KERN_WARNING "sddr09_read_map: out of memory\n"); |
1da177e4 LT |
1252 | result = -1; |
1253 | goto done; | |
1254 | } | |
1255 | ||
1256 | for (i = 0; i < numblocks; i++) | |
1257 | info->lba_to_pba[i] = info->pba_to_lba[i] = UNDEF; | |
1258 | ||
1259 | /* | |
1260 | * Define lba-pba translation table | |
1261 | */ | |
1262 | ||
1263 | ptr = buffer_end; | |
1264 | for (i = 0; i < numblocks; i++) { | |
1265 | ptr += (1 << CONTROL_SHIFT); | |
1266 | if (ptr >= buffer_end) { | |
1267 | unsigned long address; | |
1268 | ||
1269 | address = i << (info->pageshift + info->blockshift); | |
1270 | result = sddr09_read_control( | |
1271 | us, address>>1, | |
1272 | min(alloc_blocks, numblocks - i), | |
1273 | buffer, 0); | |
0dc08a35 | 1274 | if (result) { |
1da177e4 LT |
1275 | result = -1; |
1276 | goto done; | |
1277 | } | |
1278 | ptr = buffer; | |
1279 | } | |
1280 | ||
1281 | if (i == 0 || i == 1) { | |
1282 | info->pba_to_lba[i] = UNUSABLE; | |
1283 | continue; | |
1284 | } | |
1285 | ||
1286 | /* special PBAs have control field 0^16 */ | |
1287 | for (j = 0; j < 16; j++) | |
1288 | if (ptr[j] != 0) | |
1289 | goto nonz; | |
1290 | info->pba_to_lba[i] = UNUSABLE; | |
6f8aa65b FS |
1291 | printk(KERN_WARNING "sddr09: PBA %d has no logical mapping\n", |
1292 | i); | |
1da177e4 LT |
1293 | continue; |
1294 | ||
1295 | nonz: | |
1296 | /* unwritten PBAs have control field FF^16 */ | |
1297 | for (j = 0; j < 16; j++) | |
1298 | if (ptr[j] != 0xff) | |
1299 | goto nonff; | |
1300 | continue; | |
1301 | ||
1302 | nonff: | |
1303 | /* normal PBAs start with six FFs */ | |
1304 | if (j < 6) { | |
6f8aa65b FS |
1305 | printk(KERN_WARNING |
1306 | "sddr09: PBA %d has no logical mapping: " | |
1da177e4 LT |
1307 | "reserved area = %02X%02X%02X%02X " |
1308 | "data status %02X block status %02X\n", | |
1309 | i, ptr[0], ptr[1], ptr[2], ptr[3], | |
1310 | ptr[4], ptr[5]); | |
1311 | info->pba_to_lba[i] = UNUSABLE; | |
1312 | continue; | |
1313 | } | |
1314 | ||
1315 | if ((ptr[6] >> 4) != 0x01) { | |
6f8aa65b FS |
1316 | printk(KERN_WARNING |
1317 | "sddr09: PBA %d has invalid address field " | |
1da177e4 LT |
1318 | "%02X%02X/%02X%02X\n", |
1319 | i, ptr[6], ptr[7], ptr[11], ptr[12]); | |
1320 | info->pba_to_lba[i] = UNUSABLE; | |
1321 | continue; | |
1322 | } | |
1323 | ||
1324 | /* check even parity */ | |
1325 | if (parity[ptr[6] ^ ptr[7]]) { | |
6f8aa65b FS |
1326 | printk(KERN_WARNING |
1327 | "sddr09: Bad parity in LBA for block %d" | |
1da177e4 LT |
1328 | " (%02X %02X)\n", i, ptr[6], ptr[7]); |
1329 | info->pba_to_lba[i] = UNUSABLE; | |
1330 | continue; | |
1331 | } | |
1332 | ||
1333 | lba = short_pack(ptr[7], ptr[6]); | |
1334 | lba = (lba & 0x07FF) >> 1; | |
1335 | ||
1336 | /* | |
1337 | * Every 1024 physical blocks ("zone"), the LBA numbers | |
1338 | * go back to zero, but are within a higher block of LBA's. | |
1339 | * Also, there is a maximum of 1000 LBA's per zone. | |
1340 | * In other words, in PBA 1024-2047 you will find LBA 0-999 | |
1341 | * which are really LBA 1000-1999. This allows for 24 bad | |
1342 | * or special physical blocks per zone. | |
1343 | */ | |
1344 | ||
1345 | if (lba >= 1000) { | |
6f8aa65b FS |
1346 | printk(KERN_WARNING |
1347 | "sddr09: Bad low LBA %d for block %d\n", | |
1da177e4 LT |
1348 | lba, i); |
1349 | goto possibly_erase; | |
1350 | } | |
1351 | ||
1352 | lba += 1000*(i/0x400); | |
1353 | ||
1354 | if (info->lba_to_pba[lba] != UNDEF) { | |
6f8aa65b FS |
1355 | printk(KERN_WARNING |
1356 | "sddr09: LBA %d seen for PBA %d and %d\n", | |
1da177e4 LT |
1357 | lba, info->lba_to_pba[lba], i); |
1358 | goto possibly_erase; | |
1359 | } | |
1360 | ||
1361 | info->pba_to_lba[i] = lba; | |
1362 | info->lba_to_pba[lba] = i; | |
1363 | continue; | |
1364 | ||
1365 | possibly_erase: | |
1366 | if (erase_bad_lba_entries) { | |
1367 | unsigned long address; | |
1368 | ||
1369 | address = (i << (info->pageshift + info->blockshift)); | |
1370 | sddr09_erase(us, address>>1); | |
1371 | info->pba_to_lba[i] = UNDEF; | |
1372 | } else | |
1373 | info->pba_to_lba[i] = UNUSABLE; | |
1374 | } | |
1375 | ||
1376 | /* | |
1377 | * Approximate capacity. This is not entirely correct yet, | |
1378 | * since a zone with less than 1000 usable pages leads to | |
1379 | * missing LBAs. Especially if it is the last zone, some | |
1380 | * LBAs can be past capacity. | |
1381 | */ | |
1382 | lbact = 0; | |
1383 | for (i = 0; i < numblocks; i += 1024) { | |
1384 | int ct = 0; | |
1385 | ||
1386 | for (j = 0; j < 1024 && i+j < numblocks; j++) { | |
1387 | if (info->pba_to_lba[i+j] != UNUSABLE) { | |
1388 | if (ct >= 1000) | |
1389 | info->pba_to_lba[i+j] = SPARE; | |
1390 | else | |
1391 | ct++; | |
1392 | } | |
1393 | } | |
1394 | lbact += ct; | |
1395 | } | |
1396 | info->lbact = lbact; | |
191648d0 | 1397 | usb_stor_dbg(us, "Found %d LBA's\n", lbact); |
1da177e4 LT |
1398 | result = 0; |
1399 | ||
1400 | done: | |
1401 | if (result != 0) { | |
1402 | kfree(info->lba_to_pba); | |
1403 | kfree(info->pba_to_lba); | |
1404 | info->lba_to_pba = NULL; | |
1405 | info->pba_to_lba = NULL; | |
1406 | } | |
1407 | kfree(buffer); | |
1408 | return result; | |
1409 | } | |
1410 | ||
1411 | static void | |
1412 | sddr09_card_info_destructor(void *extra) { | |
1413 | struct sddr09_card_info *info = (struct sddr09_card_info *)extra; | |
1414 | ||
1415 | if (!info) | |
1416 | return; | |
1417 | ||
1418 | kfree(info->lba_to_pba); | |
1419 | kfree(info->pba_to_lba); | |
1420 | } | |
1421 | ||
f5b8cb9c MD |
1422 | static int |
1423 | sddr09_common_init(struct us_data *us) { | |
1424 | int result; | |
1425 | ||
1426 | /* set the configuration -- STALL is an acceptable response here */ | |
1427 | if (us->pusb_dev->actconfig->desc.bConfigurationValue != 1) { | |
191648d0 JP |
1428 | usb_stor_dbg(us, "active config #%d != 1 ??\n", |
1429 | us->pusb_dev->actconfig->desc.bConfigurationValue); | |
f5b8cb9c MD |
1430 | return -EINVAL; |
1431 | } | |
1432 | ||
1433 | result = usb_reset_configuration(us->pusb_dev); | |
191648d0 | 1434 | usb_stor_dbg(us, "Result of usb_reset_configuration is %d\n", result); |
f5b8cb9c | 1435 | if (result == -EPIPE) { |
191648d0 | 1436 | usb_stor_dbg(us, "-- stall on control interface\n"); |
f5b8cb9c MD |
1437 | } else if (result != 0) { |
1438 | /* it's not a stall, but another error -- time to bail */ | |
191648d0 | 1439 | usb_stor_dbg(us, "-- Unknown error. Rejecting device\n"); |
f5b8cb9c | 1440 | return -EINVAL; |
1da177e4 | 1441 | } |
f5b8cb9c MD |
1442 | |
1443 | us->extra = kzalloc(sizeof(struct sddr09_card_info), GFP_NOIO); | |
1444 | if (!us->extra) | |
1445 | return -ENOMEM; | |
1446 | us->extra_destructor = sddr09_card_info_destructor; | |
1447 | ||
1448 | nand_init_ecc(); | |
1449 | return 0; | |
1da177e4 LT |
1450 | } |
1451 | ||
f5b8cb9c | 1452 | |
1da177e4 LT |
1453 | /* |
1454 | * This is needed at a very early stage. If this is not listed in the | |
1455 | * unusual devices list but called from here then LUN 0 of the combo reader | |
1456 | * is not recognized. But I do not know what precisely these calls do. | |
1457 | */ | |
0ff71883 | 1458 | static int |
f5b8cb9c | 1459 | usb_stor_sddr09_dpcm_init(struct us_data *us) { |
1da177e4 LT |
1460 | int result; |
1461 | unsigned char *data = us->iobuf; | |
1462 | ||
f5b8cb9c MD |
1463 | result = sddr09_common_init(us); |
1464 | if (result) | |
1465 | return result; | |
1466 | ||
1da177e4 | 1467 | result = sddr09_send_command(us, 0x01, USB_DIR_IN, data, 2); |
0dc08a35 | 1468 | if (result) { |
191648d0 | 1469 | usb_stor_dbg(us, "send_command fails\n"); |
1da177e4 LT |
1470 | return result; |
1471 | } | |
1472 | ||
191648d0 | 1473 | usb_stor_dbg(us, "%02X %02X\n", data[0], data[1]); |
1da177e4 LT |
1474 | // get 07 02 |
1475 | ||
1476 | result = sddr09_send_command(us, 0x08, USB_DIR_IN, data, 2); | |
0dc08a35 | 1477 | if (result) { |
191648d0 | 1478 | usb_stor_dbg(us, "2nd send_command fails\n"); |
1da177e4 LT |
1479 | return result; |
1480 | } | |
1481 | ||
191648d0 | 1482 | usb_stor_dbg(us, "%02X %02X\n", data[0], data[1]); |
1da177e4 LT |
1483 | // get 07 00 |
1484 | ||
1485 | result = sddr09_request_sense(us, data, 18); | |
0dc08a35 | 1486 | if (result == 0 && data[2] != 0) { |
1da177e4 LT |
1487 | int j; |
1488 | for (j=0; j<18; j++) | |
1489 | printk(" %02X", data[j]); | |
1490 | printk("\n"); | |
1491 | // get 70 00 00 00 00 00 00 * 00 00 00 00 00 00 | |
1492 | // 70: current command | |
1493 | // sense key 0, sense code 0, extd sense code 0 | |
1494 | // additional transfer length * = sizeof(data) - 7 | |
1495 | // Or: 70 00 06 00 00 00 00 0b 00 00 00 00 28 00 00 00 00 00 | |
1496 | // sense key 06, sense code 28: unit attention, | |
1497 | // not ready to ready transition | |
1498 | } | |
1499 | ||
1500 | // test unit ready | |
1501 | ||
f5b8cb9c | 1502 | return 0; /* not result */ |
1da177e4 LT |
1503 | } |
1504 | ||
c20b15fd AS |
1505 | /* |
1506 | * Transport for the Microtech DPCM-USB | |
1507 | */ | |
0ff71883 | 1508 | static int dpcm_transport(struct scsi_cmnd *srb, struct us_data *us) |
c20b15fd AS |
1509 | { |
1510 | int ret; | |
1511 | ||
9cb78c16 | 1512 | usb_stor_dbg(us, "LUN=%d\n", (u8)srb->device->lun); |
c20b15fd AS |
1513 | |
1514 | switch (srb->device->lun) { | |
1515 | case 0: | |
1516 | ||
1517 | /* | |
1518 | * LUN 0 corresponds to the CompactFlash card reader. | |
1519 | */ | |
1520 | ret = usb_stor_CB_transport(srb, us); | |
1521 | break; | |
1522 | ||
1523 | case 1: | |
1524 | ||
1525 | /* | |
1526 | * LUN 1 corresponds to the SmartMedia card reader. | |
1527 | */ | |
1528 | ||
1529 | /* | |
1530 | * Set the LUN to 0 (just in case). | |
1531 | */ | |
1532 | srb->device->lun = 0; | |
1533 | ret = sddr09_transport(srb, us); | |
1534 | srb->device->lun = 1; | |
1535 | break; | |
1536 | ||
1537 | default: | |
9cb78c16 | 1538 | usb_stor_dbg(us, "Invalid LUN %d\n", (u8)srb->device->lun); |
c20b15fd AS |
1539 | ret = USB_STOR_TRANSPORT_ERROR; |
1540 | break; | |
1541 | } | |
1542 | return ret; | |
1543 | } | |
1544 | ||
1545 | ||
1da177e4 LT |
1546 | /* |
1547 | * Transport for the Sandisk SDDR-09 | |
1548 | */ | |
0ff71883 | 1549 | static int sddr09_transport(struct scsi_cmnd *srb, struct us_data *us) |
1da177e4 LT |
1550 | { |
1551 | static unsigned char sensekey = 0, sensecode = 0; | |
1552 | static unsigned char havefakesense = 0; | |
1553 | int result, i; | |
1554 | unsigned char *ptr = us->iobuf; | |
1555 | unsigned long capacity; | |
1556 | unsigned int page, pages; | |
1557 | ||
1558 | struct sddr09_card_info *info; | |
1559 | ||
1560 | static unsigned char inquiry_response[8] = { | |
1561 | 0x00, 0x80, 0x00, 0x02, 0x1F, 0x00, 0x00, 0x00 | |
1562 | }; | |
1563 | ||
1564 | /* note: no block descriptor support */ | |
1565 | static unsigned char mode_page_01[19] = { | |
1566 | 0x00, 0x0F, 0x00, 0x0, 0x0, 0x0, 0x00, | |
1567 | 0x01, 0x0A, | |
1568 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 | |
1569 | }; | |
1570 | ||
1571 | info = (struct sddr09_card_info *)us->extra; | |
1da177e4 LT |
1572 | |
1573 | if (srb->cmnd[0] == REQUEST_SENSE && havefakesense) { | |
1574 | /* for a faked command, we have to follow with a faked sense */ | |
1575 | memset(ptr, 0, 18); | |
1576 | ptr[0] = 0x70; | |
1577 | ptr[2] = sensekey; | |
1578 | ptr[7] = 11; | |
1579 | ptr[12] = sensecode; | |
1580 | usb_stor_set_xfer_buf(ptr, 18, srb); | |
1581 | sensekey = sensecode = havefakesense = 0; | |
1582 | return USB_STOR_TRANSPORT_GOOD; | |
1583 | } | |
1584 | ||
1585 | havefakesense = 1; | |
1586 | ||
f0183a33 FB |
1587 | /* |
1588 | * Dummy up a response for INQUIRY since SDDR09 doesn't | |
1589 | * respond to INQUIRY commands | |
1590 | */ | |
1da177e4 LT |
1591 | |
1592 | if (srb->cmnd[0] == INQUIRY) { | |
1593 | memcpy(ptr, inquiry_response, 8); | |
1594 | fill_inquiry_response(us, ptr, 36); | |
1595 | return USB_STOR_TRANSPORT_GOOD; | |
1596 | } | |
1597 | ||
1598 | if (srb->cmnd[0] == READ_CAPACITY) { | |
1599 | struct nand_flash_dev *cardinfo; | |
1600 | ||
1601 | sddr09_get_wp(us, info); /* read WP bit */ | |
1602 | ||
1603 | cardinfo = sddr09_get_cardinfo(us, info->flags); | |
1604 | if (!cardinfo) { | |
1605 | /* probably no media */ | |
1606 | init_error: | |
1607 | sensekey = 0x02; /* not ready */ | |
1608 | sensecode = 0x3a; /* medium not present */ | |
1609 | return USB_STOR_TRANSPORT_FAILED; | |
1610 | } | |
1611 | ||
1612 | info->capacity = (1 << cardinfo->chipshift); | |
1613 | info->pageshift = cardinfo->pageshift; | |
1614 | info->pagesize = (1 << info->pageshift); | |
1615 | info->blockshift = cardinfo->blockshift; | |
1616 | info->blocksize = (1 << info->blockshift); | |
1617 | info->blockmask = info->blocksize - 1; | |
1618 | ||
1619 | // map initialization, must follow get_cardinfo() | |
1620 | if (sddr09_read_map(us)) { | |
1621 | /* probably out of memory */ | |
1622 | goto init_error; | |
1623 | } | |
1624 | ||
1625 | // Report capacity | |
1626 | ||
1627 | capacity = (info->lbact << info->blockshift) - 1; | |
1628 | ||
1629 | ((__be32 *) ptr)[0] = cpu_to_be32(capacity); | |
1630 | ||
1631 | // Report page size | |
1632 | ||
1633 | ((__be32 *) ptr)[1] = cpu_to_be32(info->pagesize); | |
1634 | usb_stor_set_xfer_buf(ptr, 8, srb); | |
1635 | ||
1636 | return USB_STOR_TRANSPORT_GOOD; | |
1637 | } | |
1638 | ||
1639 | if (srb->cmnd[0] == MODE_SENSE_10) { | |
1640 | int modepage = (srb->cmnd[2] & 0x3F); | |
1641 | ||
f0183a33 FB |
1642 | /* |
1643 | * They ask for the Read/Write error recovery page, | |
1644 | * or for all pages. | |
1645 | */ | |
1da177e4 LT |
1646 | /* %% We should check DBD %% */ |
1647 | if (modepage == 0x01 || modepage == 0x3F) { | |
191648d0 JP |
1648 | usb_stor_dbg(us, "Dummy up request for mode page 0x%x\n", |
1649 | modepage); | |
1da177e4 LT |
1650 | |
1651 | memcpy(ptr, mode_page_01, sizeof(mode_page_01)); | |
1652 | ((__be16*)ptr)[0] = cpu_to_be16(sizeof(mode_page_01) - 2); | |
1653 | ptr[3] = (info->flags & SDDR09_WP) ? 0x80 : 0; | |
1654 | usb_stor_set_xfer_buf(ptr, sizeof(mode_page_01), srb); | |
1655 | return USB_STOR_TRANSPORT_GOOD; | |
1656 | } | |
1657 | ||
1658 | sensekey = 0x05; /* illegal request */ | |
1659 | sensecode = 0x24; /* invalid field in CDB */ | |
1660 | return USB_STOR_TRANSPORT_FAILED; | |
1661 | } | |
1662 | ||
1663 | if (srb->cmnd[0] == ALLOW_MEDIUM_REMOVAL) | |
1664 | return USB_STOR_TRANSPORT_GOOD; | |
1665 | ||
1666 | havefakesense = 0; | |
1667 | ||
1668 | if (srb->cmnd[0] == READ_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, "READ_10: read page %d pagect %d\n", |
1676 | page, pages); | |
1da177e4 | 1677 | |
0dc08a35 MD |
1678 | result = sddr09_read_data(us, page, pages); |
1679 | return (result == 0 ? USB_STOR_TRANSPORT_GOOD : | |
1680 | USB_STOR_TRANSPORT_ERROR); | |
1da177e4 LT |
1681 | } |
1682 | ||
1683 | if (srb->cmnd[0] == WRITE_10) { | |
1684 | ||
1685 | page = short_pack(srb->cmnd[3], srb->cmnd[2]); | |
1686 | page <<= 16; | |
1687 | page |= short_pack(srb->cmnd[5], srb->cmnd[4]); | |
1688 | pages = short_pack(srb->cmnd[8], srb->cmnd[7]); | |
1689 | ||
191648d0 JP |
1690 | usb_stor_dbg(us, "WRITE_10: write page %d pagect %d\n", |
1691 | page, pages); | |
1da177e4 | 1692 | |
0dc08a35 MD |
1693 | result = sddr09_write_data(us, page, pages); |
1694 | return (result == 0 ? USB_STOR_TRANSPORT_GOOD : | |
1695 | USB_STOR_TRANSPORT_ERROR); | |
1da177e4 LT |
1696 | } |
1697 | ||
f0183a33 FB |
1698 | /* |
1699 | * catch-all for all other commands, except | |
1da177e4 LT |
1700 | * pass TEST_UNIT_READY and REQUEST_SENSE through |
1701 | */ | |
1702 | if (srb->cmnd[0] != TEST_UNIT_READY && | |
1703 | srb->cmnd[0] != REQUEST_SENSE) { | |
1704 | sensekey = 0x05; /* illegal request */ | |
1705 | sensecode = 0x20; /* invalid command */ | |
1706 | havefakesense = 1; | |
1707 | return USB_STOR_TRANSPORT_FAILED; | |
1708 | } | |
1709 | ||
1710 | for (; srb->cmd_len<12; srb->cmd_len++) | |
1711 | srb->cmnd[srb->cmd_len] = 0; | |
1712 | ||
1713 | srb->cmnd[1] = LUNBITS; | |
1714 | ||
1715 | ptr[0] = 0; | |
1716 | for (i=0; i<12; i++) | |
1717 | sprintf(ptr+strlen(ptr), "%02X ", srb->cmnd[i]); | |
1718 | ||
191648d0 | 1719 | usb_stor_dbg(us, "Send control for command %s\n", ptr); |
1da177e4 LT |
1720 | |
1721 | result = sddr09_send_scsi_command(us, srb->cmnd, 12); | |
0dc08a35 | 1722 | if (result) { |
191648d0 JP |
1723 | usb_stor_dbg(us, "sddr09_send_scsi_command returns %d\n", |
1724 | result); | |
0dc08a35 | 1725 | return USB_STOR_TRANSPORT_ERROR; |
1da177e4 LT |
1726 | } |
1727 | ||
41c2497b | 1728 | if (scsi_bufflen(srb) == 0) |
1da177e4 LT |
1729 | return USB_STOR_TRANSPORT_GOOD; |
1730 | ||
1731 | if (srb->sc_data_direction == DMA_TO_DEVICE || | |
1732 | srb->sc_data_direction == DMA_FROM_DEVICE) { | |
1733 | unsigned int pipe = (srb->sc_data_direction == DMA_TO_DEVICE) | |
1734 | ? us->send_bulk_pipe : us->recv_bulk_pipe; | |
1735 | ||
191648d0 JP |
1736 | usb_stor_dbg(us, "%s %d bytes\n", |
1737 | (srb->sc_data_direction == DMA_TO_DEVICE) ? | |
1738 | "sending" : "receiving", | |
1739 | scsi_bufflen(srb)); | |
1da177e4 | 1740 | |
41c2497b | 1741 | result = usb_stor_bulk_srb(us, pipe, srb); |
1da177e4 LT |
1742 | |
1743 | return (result == USB_STOR_XFER_GOOD ? | |
1744 | USB_STOR_TRANSPORT_GOOD : USB_STOR_TRANSPORT_ERROR); | |
1745 | } | |
1746 | ||
1747 | return USB_STOR_TRANSPORT_GOOD; | |
1748 | } | |
1749 | ||
f5b8cb9c MD |
1750 | /* |
1751 | * Initialization routine for the sddr09 subdriver | |
1752 | */ | |
0ff71883 | 1753 | static int |
f5b8cb9c MD |
1754 | usb_stor_sddr09_init(struct us_data *us) { |
1755 | return sddr09_common_init(us); | |
1756 | } | |
0ff71883 | 1757 | |
aa519be3 AM |
1758 | static struct scsi_host_template sddr09_host_template; |
1759 | ||
0ff71883 AS |
1760 | static int sddr09_probe(struct usb_interface *intf, |
1761 | const struct usb_device_id *id) | |
1762 | { | |
1763 | struct us_data *us; | |
1764 | int result; | |
1765 | ||
1766 | result = usb_stor_probe1(&us, intf, id, | |
aa519be3 AM |
1767 | (id - sddr09_usb_ids) + sddr09_unusual_dev_list, |
1768 | &sddr09_host_template); | |
0ff71883 AS |
1769 | if (result) |
1770 | return result; | |
1771 | ||
8fa7fd74 | 1772 | if (us->protocol == USB_PR_DPCM_USB) { |
0ff71883 AS |
1773 | us->transport_name = "Control/Bulk-EUSB/SDDR09"; |
1774 | us->transport = dpcm_transport; | |
1775 | us->transport_reset = usb_stor_CB_reset; | |
1776 | us->max_lun = 1; | |
1777 | } else { | |
1778 | us->transport_name = "EUSB/SDDR09"; | |
1779 | us->transport = sddr09_transport; | |
1780 | us->transport_reset = usb_stor_CB_reset; | |
1781 | us->max_lun = 0; | |
1782 | } | |
1783 | ||
1784 | result = usb_stor_probe2(us); | |
1785 | return result; | |
1786 | } | |
1787 | ||
1788 | static struct usb_driver sddr09_driver = { | |
aa519be3 | 1789 | .name = DRV_NAME, |
0ff71883 AS |
1790 | .probe = sddr09_probe, |
1791 | .disconnect = usb_stor_disconnect, | |
1792 | .suspend = usb_stor_suspend, | |
1793 | .resume = usb_stor_resume, | |
1794 | .reset_resume = usb_stor_reset_resume, | |
1795 | .pre_reset = usb_stor_pre_reset, | |
1796 | .post_reset = usb_stor_post_reset, | |
1797 | .id_table = sddr09_usb_ids, | |
1798 | .soft_unbind = 1, | |
e73b2db6 | 1799 | .no_dynamic_id = 1, |
0ff71883 AS |
1800 | }; |
1801 | ||
aa519be3 | 1802 | module_usb_stor_driver(sddr09_driver, sddr09_host_template, DRV_NAME); |