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5fd54ace | 1 | // SPDX-License-Identifier: GPL-2.0+ |
f0183a33 FB |
2 | /* |
3 | * Driver for SanDisk SDDR-09 SmartMedia reader | |
1da177e4 | 4 | * |
1da177e4 LT |
5 | * (c) 2000, 2001 Robert Baruch (autophile@starband.net) |
6 | * (c) 2002 Andries Brouwer (aeb@cwi.nl) | |
7 | * Developed with the assistance of: | |
8 | * (c) 2002 Alan Stern <stern@rowland.org> | |
9 | * | |
10 | * The SanDisk SDDR-09 SmartMedia reader uses the Shuttle EUSB-01 chip. | |
11 | * This chip is a programmable USB controller. In the SDDR-09, it has | |
12 | * been programmed to obey a certain limited set of SCSI commands. | |
13 | * This driver translates the "real" SCSI commands to the SDDR-09 SCSI | |
14 | * commands. | |
1da177e4 LT |
15 | */ |
16 | ||
17 | /* | |
18 | * Known vendor commands: 12 bytes, first byte is opcode | |
19 | * | |
20 | * E7: read scatter gather | |
21 | * E8: read | |
22 | * E9: write | |
23 | * EA: erase | |
24 | * EB: reset | |
25 | * EC: read status | |
26 | * ED: read ID | |
27 | * EE: write CIS (?) | |
28 | * EF: compute checksum (?) | |
29 | */ | |
30 | ||
1da177e4 | 31 | #include <linux/errno.h> |
0ff71883 | 32 | #include <linux/module.h> |
1da177e4 LT |
33 | #include <linux/slab.h> |
34 | ||
35 | #include <scsi/scsi.h> | |
36 | #include <scsi/scsi_cmnd.h> | |
c20b15fd | 37 | #include <scsi/scsi_device.h> |
1da177e4 LT |
38 | |
39 | #include "usb.h" | |
40 | #include "transport.h" | |
41 | #include "protocol.h" | |
42 | #include "debug.h" | |
aa519be3 AM |
43 | #include "scsiglue.h" |
44 | ||
45 | #define DRV_NAME "ums-sddr09" | |
0ff71883 | 46 | |
4246b06a MG |
47 | MODULE_DESCRIPTION("Driver for SanDisk SDDR-09 SmartMedia reader"); |
48 | MODULE_AUTHOR("Andries Brouwer <aeb@cwi.nl>, Robert Baruch <autophile@starband.net>"); | |
49 | MODULE_LICENSE("GPL"); | |
0ff71883 AS |
50 | |
51 | static int usb_stor_sddr09_dpcm_init(struct us_data *us); | |
52 | static int sddr09_transport(struct scsi_cmnd *srb, struct us_data *us); | |
53 | static int usb_stor_sddr09_init(struct us_data *us); | |
54 | ||
55 | ||
56 | /* | |
57 | * The table of devices | |
58 | */ | |
59 | #define UNUSUAL_DEV(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax, \ | |
60 | vendorName, productName, useProtocol, useTransport, \ | |
61 | initFunction, flags) \ | |
62 | { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \ | |
f61870ee | 63 | .driver_info = (flags) } |
0ff71883 | 64 | |
6f871f9e | 65 | static struct usb_device_id sddr09_usb_ids[] = { |
0ff71883 AS |
66 | # include "unusual_sddr09.h" |
67 | { } /* Terminating entry */ | |
68 | }; | |
69 | MODULE_DEVICE_TABLE(usb, sddr09_usb_ids); | |
70 | ||
71 | #undef UNUSUAL_DEV | |
72 | ||
73 | /* | |
74 | * The flags table | |
75 | */ | |
76 | #define UNUSUAL_DEV(idVendor, idProduct, bcdDeviceMin, bcdDeviceMax, \ | |
77 | vendor_name, product_name, use_protocol, use_transport, \ | |
78 | init_function, Flags) \ | |
79 | { \ | |
80 | .vendorName = vendor_name, \ | |
81 | .productName = product_name, \ | |
82 | .useProtocol = use_protocol, \ | |
83 | .useTransport = use_transport, \ | |
84 | .initFunction = init_function, \ | |
85 | } | |
86 | ||
87 | static struct us_unusual_dev sddr09_unusual_dev_list[] = { | |
88 | # include "unusual_sddr09.h" | |
89 | { } /* Terminating entry */ | |
90 | }; | |
91 | ||
92 | #undef UNUSUAL_DEV | |
1da177e4 LT |
93 | |
94 | ||
95 | #define short_pack(lsb,msb) ( ((u16)(lsb)) | ( ((u16)(msb))<<8 ) ) | |
96 | #define LSB_of(s) ((s)&0xFF) | |
97 | #define MSB_of(s) ((s)>>8) | |
98 | ||
1da177e4 LT |
99 | /* |
100 | * First some stuff that does not belong here: | |
101 | * data on SmartMedia and other cards, completely | |
102 | * unrelated to this driver. | |
103 | * Similar stuff occurs in <linux/mtd/nand_ids.h>. | |
104 | */ | |
105 | ||
106 | struct nand_flash_dev { | |
107 | int model_id; | |
108 | int chipshift; /* 1<<cs bytes total capacity */ | |
109 | char pageshift; /* 1<<ps bytes in a page */ | |
110 | char blockshift; /* 1<<bs pages in an erase block */ | |
111 | char zoneshift; /* 1<<zs blocks in a zone */ | |
112 | /* # of logical blocks is 125/128 of this */ | |
113 | char pageadrlen; /* length of an address in bytes - 1 */ | |
114 | }; | |
115 | ||
116 | /* | |
117 | * NAND Flash Manufacturer ID Codes | |
118 | */ | |
119 | #define NAND_MFR_AMD 0x01 | |
120 | #define NAND_MFR_NATSEMI 0x8f | |
121 | #define NAND_MFR_TOSHIBA 0x98 | |
122 | #define NAND_MFR_SAMSUNG 0xec | |
123 | ||
124 | static inline char *nand_flash_manufacturer(int manuf_id) { | |
125 | switch(manuf_id) { | |
126 | case NAND_MFR_AMD: | |
127 | return "AMD"; | |
128 | case NAND_MFR_NATSEMI: | |
129 | return "NATSEMI"; | |
130 | case NAND_MFR_TOSHIBA: | |
131 | return "Toshiba"; | |
132 | case NAND_MFR_SAMSUNG: | |
133 | return "Samsung"; | |
134 | default: | |
135 | return "unknown"; | |
136 | } | |
137 | } | |
138 | ||
139 | /* | |
140 | * It looks like it is unnecessary to attach manufacturer to the | |
141 | * remaining data: SSFDC prescribes manufacturer-independent id codes. | |
142 | * | |
143 | * 256 MB NAND flash has a 5-byte ID with 2nd byte 0xaa, 0xba, 0xca or 0xda. | |
144 | */ | |
145 | ||
146 | static struct nand_flash_dev nand_flash_ids[] = { | |
147 | /* NAND flash */ | |
148 | { 0x6e, 20, 8, 4, 8, 2}, /* 1 MB */ | |
149 | { 0xe8, 20, 8, 4, 8, 2}, /* 1 MB */ | |
150 | { 0xec, 20, 8, 4, 8, 2}, /* 1 MB */ | |
151 | { 0x64, 21, 8, 4, 9, 2}, /* 2 MB */ | |
152 | { 0xea, 21, 8, 4, 9, 2}, /* 2 MB */ | |
153 | { 0x6b, 22, 9, 4, 9, 2}, /* 4 MB */ | |
154 | { 0xe3, 22, 9, 4, 9, 2}, /* 4 MB */ | |
155 | { 0xe5, 22, 9, 4, 9, 2}, /* 4 MB */ | |
156 | { 0xe6, 23, 9, 4, 10, 2}, /* 8 MB */ | |
157 | { 0x73, 24, 9, 5, 10, 2}, /* 16 MB */ | |
158 | { 0x75, 25, 9, 5, 10, 2}, /* 32 MB */ | |
159 | { 0x76, 26, 9, 5, 10, 3}, /* 64 MB */ | |
160 | { 0x79, 27, 9, 5, 10, 3}, /* 128 MB */ | |
161 | ||
162 | /* MASK ROM */ | |
163 | { 0x5d, 21, 9, 4, 8, 2}, /* 2 MB */ | |
164 | { 0xd5, 22, 9, 4, 9, 2}, /* 4 MB */ | |
165 | { 0xd6, 23, 9, 4, 10, 2}, /* 8 MB */ | |
166 | { 0x57, 24, 9, 4, 11, 2}, /* 16 MB */ | |
167 | { 0x58, 25, 9, 4, 12, 2}, /* 32 MB */ | |
168 | { 0,} | |
169 | }; | |
170 | ||
1da177e4 LT |
171 | static struct nand_flash_dev * |
172 | nand_find_id(unsigned char id) { | |
173 | int i; | |
174 | ||
52950ed4 | 175 | for (i = 0; i < ARRAY_SIZE(nand_flash_ids); i++) |
1da177e4 LT |
176 | if (nand_flash_ids[i].model_id == id) |
177 | return &(nand_flash_ids[i]); | |
178 | return NULL; | |
179 | } | |
180 | ||
181 | /* | |
182 | * ECC computation. | |
183 | */ | |
184 | static unsigned char parity[256]; | |
185 | static unsigned char ecc2[256]; | |
186 | ||
187 | static void nand_init_ecc(void) { | |
188 | int i, j, a; | |
189 | ||
190 | parity[0] = 0; | |
191 | for (i = 1; i < 256; i++) | |
192 | parity[i] = (parity[i&(i-1)] ^ 1); | |
193 | ||
194 | for (i = 0; i < 256; i++) { | |
195 | a = 0; | |
196 | for (j = 0; j < 8; j++) { | |
197 | if (i & (1<<j)) { | |
198 | if ((j & 1) == 0) | |
199 | a ^= 0x04; | |
200 | if ((j & 2) == 0) | |
201 | a ^= 0x10; | |
202 | if ((j & 4) == 0) | |
203 | a ^= 0x40; | |
204 | } | |
205 | } | |
206 | ecc2[i] = ~(a ^ (a<<1) ^ (parity[i] ? 0xa8 : 0)); | |
207 | } | |
208 | } | |
209 | ||
210 | /* compute 3-byte ecc on 256 bytes */ | |
211 | static void nand_compute_ecc(unsigned char *data, unsigned char *ecc) { | |
212 | int i, j, a; | |
4cb4f838 | 213 | unsigned char par = 0, bit, bits[8] = {0}; |
1da177e4 LT |
214 | |
215 | /* collect 16 checksum bits */ | |
216 | for (i = 0; i < 256; i++) { | |
217 | par ^= data[i]; | |
218 | bit = parity[data[i]]; | |
219 | for (j = 0; j < 8; j++) | |
220 | if ((i & (1<<j)) == 0) | |
221 | bits[j] ^= bit; | |
222 | } | |
223 | ||
224 | /* put 4+4+4 = 12 bits in the ecc */ | |
225 | a = (bits[3] << 6) + (bits[2] << 4) + (bits[1] << 2) + bits[0]; | |
226 | ecc[0] = ~(a ^ (a<<1) ^ (parity[par] ? 0xaa : 0)); | |
227 | ||
228 | a = (bits[7] << 6) + (bits[6] << 4) + (bits[5] << 2) + bits[4]; | |
229 | ecc[1] = ~(a ^ (a<<1) ^ (parity[par] ? 0xaa : 0)); | |
230 | ||
231 | ecc[2] = ecc2[par]; | |
232 | } | |
233 | ||
234 | static int nand_compare_ecc(unsigned char *data, unsigned char *ecc) { | |
235 | return (data[0] == ecc[0] && data[1] == ecc[1] && data[2] == ecc[2]); | |
236 | } | |
237 | ||
238 | static void nand_store_ecc(unsigned char *data, unsigned char *ecc) { | |
239 | memcpy(data, ecc, 3); | |
240 | } | |
241 | ||
242 | /* | |
243 | * The actual driver starts here. | |
244 | */ | |
245 | ||
f5b8cb9c MD |
246 | struct sddr09_card_info { |
247 | unsigned long capacity; /* Size of card in bytes */ | |
248 | int pagesize; /* Size of page in bytes */ | |
249 | int pageshift; /* log2 of pagesize */ | |
250 | int blocksize; /* Size of block in pages */ | |
251 | int blockshift; /* log2 of blocksize */ | |
252 | int blockmask; /* 2^blockshift - 1 */ | |
253 | int *lba_to_pba; /* logical to physical map */ | |
254 | int *pba_to_lba; /* physical to logical map */ | |
255 | int lbact; /* number of available pages */ | |
256 | int flags; | |
257 | #define SDDR09_WP 1 /* write protected */ | |
258 | }; | |
259 | ||
1da177e4 LT |
260 | /* |
261 | * On my 16MB card, control blocks have size 64 (16 real control bytes, | |
262 | * and 48 junk bytes). In reality of course the card uses 16 control bytes, | |
263 | * so the reader makes up the remaining 48. Don't know whether these numbers | |
264 | * depend on the card. For now a constant. | |
265 | */ | |
266 | #define CONTROL_SHIFT 6 | |
267 | ||
268 | /* | |
269 | * On my Combo CF/SM reader, the SM reader has LUN 1. | |
270 | * (and things fail with LUN 0). | |
271 | * It seems LUN is irrelevant for others. | |
272 | */ | |
273 | #define LUN 1 | |
274 | #define LUNBITS (LUN << 5) | |
275 | ||
276 | /* | |
277 | * LBA and PBA are unsigned ints. Special values. | |
278 | */ | |
279 | #define UNDEF 0xffffffff | |
280 | #define SPARE 0xfffffffe | |
281 | #define UNUSABLE 0xfffffffd | |
282 | ||
4c4c9432 | 283 | static const int erase_bad_lba_entries = 0; |
1da177e4 LT |
284 | |
285 | /* send vendor interface command (0x41) */ | |
286 | /* called for requests 0, 1, 8 */ | |
287 | static int | |
288 | sddr09_send_command(struct us_data *us, | |
289 | unsigned char request, | |
290 | unsigned char direction, | |
291 | unsigned char *xfer_data, | |
292 | unsigned int xfer_len) { | |
293 | unsigned int pipe; | |
294 | unsigned char requesttype = (0x41 | direction); | |
295 | int rc; | |
296 | ||
297 | // Get the receive or send control pipe number | |
298 | ||
299 | if (direction == USB_DIR_IN) | |
300 | pipe = us->recv_ctrl_pipe; | |
301 | else | |
302 | pipe = us->send_ctrl_pipe; | |
303 | ||
304 | rc = usb_stor_ctrl_transfer(us, pipe, request, requesttype, | |
305 | 0, 0, xfer_data, xfer_len); | |
0dc08a35 MD |
306 | switch (rc) { |
307 | case USB_STOR_XFER_GOOD: return 0; | |
308 | case USB_STOR_XFER_STALLED: return -EPIPE; | |
309 | default: return -EIO; | |
310 | } | |
1da177e4 LT |
311 | } |
312 | ||
313 | static int | |
314 | sddr09_send_scsi_command(struct us_data *us, | |
315 | unsigned char *command, | |
316 | unsigned int command_len) { | |
317 | return sddr09_send_command(us, 0, USB_DIR_OUT, command, command_len); | |
318 | } | |
319 | ||
320 | #if 0 | |
321 | /* | |
322 | * Test Unit Ready Command: 12 bytes. | |
323 | * byte 0: opcode: 00 | |
324 | */ | |
325 | static int | |
326 | sddr09_test_unit_ready(struct us_data *us) { | |
327 | unsigned char *command = us->iobuf; | |
328 | int result; | |
329 | ||
330 | memset(command, 0, 6); | |
331 | command[1] = LUNBITS; | |
332 | ||
333 | result = sddr09_send_scsi_command(us, command, 6); | |
334 | ||
191648d0 | 335 | usb_stor_dbg(us, "sddr09_test_unit_ready returns %d\n", result); |
1da177e4 LT |
336 | |
337 | return result; | |
338 | } | |
339 | #endif | |
340 | ||
341 | /* | |
342 | * Request Sense Command: 12 bytes. | |
343 | * byte 0: opcode: 03 | |
344 | * byte 4: data length | |
345 | */ | |
346 | static int | |
347 | sddr09_request_sense(struct us_data *us, unsigned char *sensebuf, int buflen) { | |
348 | unsigned char *command = us->iobuf; | |
349 | int result; | |
350 | ||
351 | memset(command, 0, 12); | |
352 | command[0] = 0x03; | |
353 | command[1] = LUNBITS; | |
354 | command[4] = buflen; | |
355 | ||
356 | result = sddr09_send_scsi_command(us, command, 12); | |
0dc08a35 | 357 | if (result) |
1da177e4 | 358 | return result; |
1da177e4 LT |
359 | |
360 | result = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe, | |
361 | sensebuf, buflen, NULL); | |
0dc08a35 | 362 | return (result == USB_STOR_XFER_GOOD ? 0 : -EIO); |
1da177e4 LT |
363 | } |
364 | ||
365 | /* | |
366 | * Read Command: 12 bytes. | |
367 | * byte 0: opcode: E8 | |
368 | * byte 1: last two bits: 00: read data, 01: read blockwise control, | |
369 | * 10: read both, 11: read pagewise control. | |
370 | * It turns out we need values 20, 21, 22, 23 here (LUN 1). | |
371 | * bytes 2-5: address (interpretation depends on byte 1, see below) | |
372 | * bytes 10-11: count (idem) | |
373 | * | |
374 | * A page has 512 data bytes and 64 control bytes (16 control and 48 junk). | |
375 | * A read data command gets data in 512-byte pages. | |
376 | * A read control command gets control in 64-byte chunks. | |
377 | * A read both command gets data+control in 576-byte chunks. | |
378 | * | |
379 | * Blocks are groups of 32 pages, and read blockwise control jumps to the | |
380 | * next block, while read pagewise control jumps to the next page after | |
381 | * reading a group of 64 control bytes. | |
382 | * [Here 512 = 1<<pageshift, 32 = 1<<blockshift, 64 is constant?] | |
383 | * | |
384 | * (1 MB and 2 MB cards are a bit different, but I have only a 16 MB card.) | |
385 | */ | |
386 | ||
387 | static int | |
388 | sddr09_readX(struct us_data *us, int x, unsigned long fromaddress, | |
389 | int nr_of_pages, int bulklen, unsigned char *buf, | |
390 | int use_sg) { | |
391 | ||
392 | unsigned char *command = us->iobuf; | |
393 | int result; | |
394 | ||
395 | command[0] = 0xE8; | |
396 | command[1] = LUNBITS | x; | |
397 | command[2] = MSB_of(fromaddress>>16); | |
398 | command[3] = LSB_of(fromaddress>>16); | |
399 | command[4] = MSB_of(fromaddress & 0xFFFF); | |
400 | command[5] = LSB_of(fromaddress & 0xFFFF); | |
401 | command[6] = 0; | |
402 | command[7] = 0; | |
403 | command[8] = 0; | |
404 | command[9] = 0; | |
405 | command[10] = MSB_of(nr_of_pages); | |
406 | command[11] = LSB_of(nr_of_pages); | |
407 | ||
408 | result = sddr09_send_scsi_command(us, command, 12); | |
409 | ||
0dc08a35 | 410 | if (result) { |
191648d0 JP |
411 | usb_stor_dbg(us, "Result for send_control in sddr09_read2%d %d\n", |
412 | x, result); | |
1da177e4 LT |
413 | return result; |
414 | } | |
415 | ||
416 | result = usb_stor_bulk_transfer_sg(us, us->recv_bulk_pipe, | |
417 | buf, bulklen, use_sg, NULL); | |
418 | ||
419 | if (result != USB_STOR_XFER_GOOD) { | |
191648d0 JP |
420 | usb_stor_dbg(us, "Result for bulk_transfer in sddr09_read2%d %d\n", |
421 | x, result); | |
0dc08a35 | 422 | return -EIO; |
1da177e4 | 423 | } |
0dc08a35 | 424 | return 0; |
1da177e4 LT |
425 | } |
426 | ||
427 | /* | |
428 | * Read Data | |
429 | * | |
430 | * fromaddress counts data shorts: | |
431 | * increasing it by 256 shifts the bytestream by 512 bytes; | |
432 | * the last 8 bits are ignored. | |
433 | * | |
434 | * nr_of_pages counts pages of size (1 << pageshift). | |
435 | */ | |
436 | static int | |
437 | sddr09_read20(struct us_data *us, unsigned long fromaddress, | |
438 | int nr_of_pages, int pageshift, unsigned char *buf, int use_sg) { | |
439 | int bulklen = nr_of_pages << pageshift; | |
440 | ||
441 | /* The last 8 bits of fromaddress are ignored. */ | |
442 | return sddr09_readX(us, 0, fromaddress, nr_of_pages, bulklen, | |
443 | buf, use_sg); | |
444 | } | |
445 | ||
446 | /* | |
447 | * Read Blockwise Control | |
448 | * | |
449 | * fromaddress gives the starting position (as in read data; | |
450 | * the last 8 bits are ignored); increasing it by 32*256 shifts | |
451 | * the output stream by 64 bytes. | |
452 | * | |
453 | * count counts control groups of size (1 << controlshift). | |
454 | * For me, controlshift = 6. Is this constant? | |
455 | * | |
456 | * After getting one control group, jump to the next block | |
457 | * (fromaddress += 8192). | |
458 | */ | |
459 | static int | |
460 | sddr09_read21(struct us_data *us, unsigned long fromaddress, | |
461 | int count, int controlshift, unsigned char *buf, int use_sg) { | |
462 | ||
463 | int bulklen = (count << controlshift); | |
464 | return sddr09_readX(us, 1, fromaddress, count, bulklen, | |
465 | buf, use_sg); | |
466 | } | |
467 | ||
468 | /* | |
469 | * Read both Data and Control | |
470 | * | |
471 | * fromaddress counts data shorts, ignoring control: | |
472 | * increasing it by 256 shifts the bytestream by 576 = 512+64 bytes; | |
473 | * the last 8 bits are ignored. | |
474 | * | |
475 | * nr_of_pages counts pages of size (1 << pageshift) + (1 << controlshift). | |
476 | */ | |
477 | static int | |
478 | sddr09_read22(struct us_data *us, unsigned long fromaddress, | |
479 | int nr_of_pages, int pageshift, unsigned char *buf, int use_sg) { | |
480 | ||
481 | int bulklen = (nr_of_pages << pageshift) + (nr_of_pages << CONTROL_SHIFT); | |
191648d0 | 482 | usb_stor_dbg(us, "reading %d pages, %d bytes\n", nr_of_pages, bulklen); |
1da177e4 LT |
483 | return sddr09_readX(us, 2, fromaddress, nr_of_pages, bulklen, |
484 | buf, use_sg); | |
485 | } | |
486 | ||
487 | #if 0 | |
488 | /* | |
489 | * Read Pagewise Control | |
490 | * | |
491 | * fromaddress gives the starting position (as in read data; | |
492 | * the last 8 bits are ignored); increasing it by 256 shifts | |
493 | * the output stream by 64 bytes. | |
494 | * | |
495 | * count counts control groups of size (1 << controlshift). | |
496 | * For me, controlshift = 6. Is this constant? | |
497 | * | |
498 | * After getting one control group, jump to the next page | |
499 | * (fromaddress += 256). | |
500 | */ | |
501 | static int | |
502 | sddr09_read23(struct us_data *us, unsigned long fromaddress, | |
503 | int count, int controlshift, unsigned char *buf, int use_sg) { | |
504 | ||
505 | int bulklen = (count << controlshift); | |
506 | return sddr09_readX(us, 3, fromaddress, count, bulklen, | |
507 | buf, use_sg); | |
508 | } | |
509 | #endif | |
510 | ||
511 | /* | |
512 | * Erase Command: 12 bytes. | |
513 | * byte 0: opcode: EA | |
514 | * bytes 6-9: erase address (big-endian, counting shorts, sector aligned). | |
515 | * | |
516 | * Always precisely one block is erased; bytes 2-5 and 10-11 are ignored. | |
517 | * The byte address being erased is 2*Eaddress. | |
518 | * The CIS cannot be erased. | |
519 | */ | |
520 | static int | |
521 | sddr09_erase(struct us_data *us, unsigned long Eaddress) { | |
522 | unsigned char *command = us->iobuf; | |
523 | int result; | |
524 | ||
191648d0 | 525 | usb_stor_dbg(us, "erase address %lu\n", Eaddress); |
1da177e4 LT |
526 | |
527 | memset(command, 0, 12); | |
528 | command[0] = 0xEA; | |
529 | command[1] = LUNBITS; | |
530 | command[6] = MSB_of(Eaddress>>16); | |
531 | command[7] = LSB_of(Eaddress>>16); | |
532 | command[8] = MSB_of(Eaddress & 0xFFFF); | |
533 | command[9] = LSB_of(Eaddress & 0xFFFF); | |
534 | ||
535 | result = sddr09_send_scsi_command(us, command, 12); | |
536 | ||
0dc08a35 | 537 | if (result) |
191648d0 JP |
538 | usb_stor_dbg(us, "Result for send_control in sddr09_erase %d\n", |
539 | result); | |
1da177e4 LT |
540 | |
541 | return result; | |
542 | } | |
543 | ||
544 | /* | |
545 | * Write CIS Command: 12 bytes. | |
546 | * byte 0: opcode: EE | |
547 | * bytes 2-5: write address in shorts | |
548 | * bytes 10-11: sector count | |
549 | * | |
550 | * This writes at the indicated address. Don't know how it differs | |
551 | * from E9. Maybe it does not erase? However, it will also write to | |
552 | * the CIS. | |
553 | * | |
554 | * When two such commands on the same page follow each other directly, | |
555 | * the second one is not done. | |
556 | */ | |
557 | ||
558 | /* | |
559 | * Write Command: 12 bytes. | |
560 | * byte 0: opcode: E9 | |
561 | * bytes 2-5: write address (big-endian, counting shorts, sector aligned). | |
562 | * bytes 6-9: erase address (big-endian, counting shorts, sector aligned). | |
563 | * bytes 10-11: sector count (big-endian, in 512-byte sectors). | |
564 | * | |
565 | * If write address equals erase address, the erase is done first, | |
566 | * otherwise the write is done first. When erase address equals zero | |
567 | * no erase is done? | |
568 | */ | |
569 | static int | |
570 | sddr09_writeX(struct us_data *us, | |
571 | unsigned long Waddress, unsigned long Eaddress, | |
572 | int nr_of_pages, int bulklen, unsigned char *buf, int use_sg) { | |
573 | ||
574 | unsigned char *command = us->iobuf; | |
575 | int result; | |
576 | ||
577 | command[0] = 0xE9; | |
578 | command[1] = LUNBITS; | |
579 | ||
580 | command[2] = MSB_of(Waddress>>16); | |
581 | command[3] = LSB_of(Waddress>>16); | |
582 | command[4] = MSB_of(Waddress & 0xFFFF); | |
583 | command[5] = LSB_of(Waddress & 0xFFFF); | |
584 | ||
585 | command[6] = MSB_of(Eaddress>>16); | |
586 | command[7] = LSB_of(Eaddress>>16); | |
587 | command[8] = MSB_of(Eaddress & 0xFFFF); | |
588 | command[9] = LSB_of(Eaddress & 0xFFFF); | |
589 | ||
590 | command[10] = MSB_of(nr_of_pages); | |
591 | command[11] = LSB_of(nr_of_pages); | |
592 | ||
593 | result = sddr09_send_scsi_command(us, command, 12); | |
594 | ||
0dc08a35 | 595 | if (result) { |
191648d0 JP |
596 | usb_stor_dbg(us, "Result for send_control in sddr09_writeX %d\n", |
597 | result); | |
1da177e4 LT |
598 | return result; |
599 | } | |
600 | ||
601 | result = usb_stor_bulk_transfer_sg(us, us->send_bulk_pipe, | |
602 | buf, bulklen, use_sg, NULL); | |
603 | ||
604 | if (result != USB_STOR_XFER_GOOD) { | |
191648d0 JP |
605 | usb_stor_dbg(us, "Result for bulk_transfer in sddr09_writeX %d\n", |
606 | result); | |
0dc08a35 | 607 | return -EIO; |
1da177e4 | 608 | } |
0dc08a35 | 609 | return 0; |
1da177e4 LT |
610 | } |
611 | ||
612 | /* erase address, write same address */ | |
613 | static int | |
614 | sddr09_write_inplace(struct us_data *us, unsigned long address, | |
615 | int nr_of_pages, int pageshift, unsigned char *buf, | |
616 | int use_sg) { | |
617 | int bulklen = (nr_of_pages << pageshift) + (nr_of_pages << CONTROL_SHIFT); | |
618 | return sddr09_writeX(us, address, address, nr_of_pages, bulklen, | |
619 | buf, use_sg); | |
620 | } | |
621 | ||
622 | #if 0 | |
623 | /* | |
624 | * Read Scatter Gather Command: 3+4n bytes. | |
625 | * byte 0: opcode E7 | |
626 | * byte 2: n | |
627 | * bytes 4i-1,4i,4i+1: page address | |
628 | * byte 4i+2: page count | |
629 | * (i=1..n) | |
630 | * | |
631 | * This reads several pages from the card to a single memory buffer. | |
632 | * The last two bits of byte 1 have the same meaning as for E8. | |
633 | */ | |
634 | static int | |
635 | sddr09_read_sg_test_only(struct us_data *us) { | |
636 | unsigned char *command = us->iobuf; | |
637 | int result, bulklen, nsg, ct; | |
638 | unsigned char *buf; | |
639 | unsigned long address; | |
640 | ||
641 | nsg = bulklen = 0; | |
642 | command[0] = 0xE7; | |
643 | command[1] = LUNBITS; | |
644 | command[2] = 0; | |
645 | address = 040000; ct = 1; | |
646 | nsg++; | |
647 | bulklen += (ct << 9); | |
648 | command[4*nsg+2] = ct; | |
649 | command[4*nsg+1] = ((address >> 9) & 0xFF); | |
650 | command[4*nsg+0] = ((address >> 17) & 0xFF); | |
651 | command[4*nsg-1] = ((address >> 25) & 0xFF); | |
652 | ||
653 | address = 0340000; ct = 1; | |
654 | nsg++; | |
655 | bulklen += (ct << 9); | |
656 | command[4*nsg+2] = ct; | |
657 | command[4*nsg+1] = ((address >> 9) & 0xFF); | |
658 | command[4*nsg+0] = ((address >> 17) & 0xFF); | |
659 | command[4*nsg-1] = ((address >> 25) & 0xFF); | |
660 | ||
661 | address = 01000000; ct = 2; | |
662 | nsg++; | |
663 | bulklen += (ct << 9); | |
664 | command[4*nsg+2] = ct; | |
665 | command[4*nsg+1] = ((address >> 9) & 0xFF); | |
666 | command[4*nsg+0] = ((address >> 17) & 0xFF); | |
667 | command[4*nsg-1] = ((address >> 25) & 0xFF); | |
668 | ||
669 | command[2] = nsg; | |
670 | ||
671 | result = sddr09_send_scsi_command(us, command, 4*nsg+3); | |
672 | ||
0dc08a35 | 673 | if (result) { |
191648d0 JP |
674 | usb_stor_dbg(us, "Result for send_control in sddr09_read_sg %d\n", |
675 | result); | |
1da177e4 LT |
676 | return result; |
677 | } | |
678 | ||
5cbded58 | 679 | buf = kmalloc(bulklen, GFP_NOIO); |
1da177e4 | 680 | if (!buf) |
0dc08a35 | 681 | return -ENOMEM; |
1da177e4 LT |
682 | |
683 | result = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe, | |
684 | buf, bulklen, NULL); | |
685 | kfree(buf); | |
686 | if (result != USB_STOR_XFER_GOOD) { | |
191648d0 JP |
687 | usb_stor_dbg(us, "Result for bulk_transfer in sddr09_read_sg %d\n", |
688 | result); | |
0dc08a35 | 689 | return -EIO; |
1da177e4 LT |
690 | } |
691 | ||
0dc08a35 | 692 | return 0; |
1da177e4 LT |
693 | } |
694 | #endif | |
695 | ||
696 | /* | |
697 | * Read Status Command: 12 bytes. | |
698 | * byte 0: opcode: EC | |
699 | * | |
700 | * Returns 64 bytes, all zero except for the first. | |
701 | * bit 0: 1: Error | |
702 | * bit 5: 1: Suspended | |
703 | * bit 6: 1: Ready | |
704 | * bit 7: 1: Not write-protected | |
705 | */ | |
706 | ||
707 | static int | |
708 | sddr09_read_status(struct us_data *us, unsigned char *status) { | |
709 | ||
710 | unsigned char *command = us->iobuf; | |
711 | unsigned char *data = us->iobuf; | |
712 | int result; | |
713 | ||
191648d0 | 714 | usb_stor_dbg(us, "Reading status...\n"); |
1da177e4 LT |
715 | |
716 | memset(command, 0, 12); | |
717 | command[0] = 0xEC; | |
718 | command[1] = LUNBITS; | |
719 | ||
720 | result = sddr09_send_scsi_command(us, command, 12); | |
0dc08a35 | 721 | if (result) |
1da177e4 LT |
722 | return result; |
723 | ||
724 | result = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe, | |
725 | data, 64, NULL); | |
726 | *status = data[0]; | |
0dc08a35 | 727 | return (result == USB_STOR_XFER_GOOD ? 0 : -EIO); |
1da177e4 LT |
728 | } |
729 | ||
730 | static int | |
731 | sddr09_read_data(struct us_data *us, | |
732 | unsigned long address, | |
733 | unsigned int sectors) { | |
734 | ||
735 | struct sddr09_card_info *info = (struct sddr09_card_info *) us->extra; | |
736 | unsigned char *buffer; | |
737 | unsigned int lba, maxlba, pba; | |
738 | unsigned int page, pages; | |
1f6f31a0 JA |
739 | unsigned int len, offset; |
740 | struct scatterlist *sg; | |
1da177e4 LT |
741 | int result; |
742 | ||
a6c976c6 MD |
743 | // Figure out the initial LBA and page |
744 | lba = address >> info->blockshift; | |
745 | page = (address & info->blockmask); | |
746 | maxlba = info->capacity >> (info->pageshift + info->blockshift); | |
747 | if (lba >= maxlba) | |
748 | return -EIO; | |
749 | ||
1da177e4 LT |
750 | // Since we only read in one block at a time, we have to create |
751 | // a bounce buffer and move the data a piece at a time between the | |
752 | // bounce buffer and the actual transfer buffer. | |
753 | ||
754 | len = min(sectors, (unsigned int) info->blocksize) * info->pagesize; | |
755 | buffer = kmalloc(len, GFP_NOIO); | |
fd233925 | 756 | if (!buffer) |
0dc08a35 | 757 | return -ENOMEM; |
1da177e4 | 758 | |
1da177e4 LT |
759 | // This could be made much more efficient by checking for |
760 | // contiguous LBA's. Another exercise left to the student. | |
761 | ||
0dc08a35 | 762 | result = 0; |
1f6f31a0 JA |
763 | offset = 0; |
764 | sg = NULL; | |
1da177e4 LT |
765 | |
766 | while (sectors > 0) { | |
767 | ||
768 | /* Find number of pages we can read in this block */ | |
769 | pages = min(sectors, info->blocksize - page); | |
770 | len = pages << info->pageshift; | |
771 | ||
772 | /* Not overflowing capacity? */ | |
773 | if (lba >= maxlba) { | |
191648d0 JP |
774 | usb_stor_dbg(us, "Error: Requested lba %u exceeds maximum %u\n", |
775 | lba, maxlba); | |
0dc08a35 | 776 | result = -EIO; |
1da177e4 LT |
777 | break; |
778 | } | |
779 | ||
780 | /* Find where this lba lives on disk */ | |
781 | pba = info->lba_to_pba[lba]; | |
782 | ||
783 | if (pba == UNDEF) { /* this lba was never written */ | |
784 | ||
191648d0 JP |
785 | usb_stor_dbg(us, "Read %d zero pages (LBA %d) page %d\n", |
786 | pages, lba, page); | |
1da177e4 | 787 | |
f0183a33 FB |
788 | /* |
789 | * This is not really an error. It just means | |
790 | * that the block has never been written. | |
791 | * Instead of returning an error | |
792 | * it is better to return all zero data. | |
793 | */ | |
1da177e4 LT |
794 | |
795 | memset(buffer, 0, len); | |
796 | ||
797 | } else { | |
191648d0 JP |
798 | usb_stor_dbg(us, "Read %d pages, from PBA %d (LBA %d) page %d\n", |
799 | pages, pba, lba, page); | |
1da177e4 LT |
800 | |
801 | address = ((pba << info->blockshift) + page) << | |
802 | info->pageshift; | |
803 | ||
804 | result = sddr09_read20(us, address>>1, | |
805 | pages, info->pageshift, buffer, 0); | |
0dc08a35 | 806 | if (result) |
1da177e4 LT |
807 | break; |
808 | } | |
809 | ||
810 | // Store the data in the transfer buffer | |
811 | usb_stor_access_xfer_buf(buffer, len, us->srb, | |
1f6f31a0 | 812 | &sg, &offset, TO_XFER_BUF); |
1da177e4 LT |
813 | |
814 | page = 0; | |
815 | lba++; | |
816 | sectors -= pages; | |
817 | } | |
818 | ||
819 | kfree(buffer); | |
820 | return result; | |
821 | } | |
822 | ||
823 | static unsigned int | |
824 | sddr09_find_unused_pba(struct sddr09_card_info *info, unsigned int lba) { | |
825 | static unsigned int lastpba = 1; | |
826 | int zonestart, end, i; | |
827 | ||
828 | zonestart = (lba/1000) << 10; | |
829 | end = info->capacity >> (info->blockshift + info->pageshift); | |
830 | end -= zonestart; | |
831 | if (end > 1024) | |
832 | end = 1024; | |
833 | ||
834 | for (i = lastpba+1; i < end; i++) { | |
835 | if (info->pba_to_lba[zonestart+i] == UNDEF) { | |
836 | lastpba = i; | |
837 | return zonestart+i; | |
838 | } | |
839 | } | |
840 | for (i = 0; i <= lastpba; i++) { | |
841 | if (info->pba_to_lba[zonestart+i] == UNDEF) { | |
842 | lastpba = i; | |
843 | return zonestart+i; | |
844 | } | |
845 | } | |
846 | return 0; | |
847 | } | |
848 | ||
849 | static int | |
850 | sddr09_write_lba(struct us_data *us, unsigned int lba, | |
851 | unsigned int page, unsigned int pages, | |
852 | unsigned char *ptr, unsigned char *blockbuffer) { | |
853 | ||
854 | struct sddr09_card_info *info = (struct sddr09_card_info *) us->extra; | |
855 | unsigned long address; | |
856 | unsigned int pba, lbap; | |
857 | unsigned int pagelen; | |
858 | unsigned char *bptr, *cptr, *xptr; | |
859 | unsigned char ecc[3]; | |
92190e36 | 860 | int i, result; |
1da177e4 LT |
861 | |
862 | lbap = ((lba % 1000) << 1) | 0x1000; | |
863 | if (parity[MSB_of(lbap) ^ LSB_of(lbap)]) | |
864 | lbap ^= 1; | |
865 | pba = info->lba_to_pba[lba]; | |
1da177e4 LT |
866 | |
867 | if (pba == UNDEF) { | |
868 | pba = sddr09_find_unused_pba(info, lba); | |
869 | if (!pba) { | |
6f8aa65b FS |
870 | printk(KERN_WARNING |
871 | "sddr09_write_lba: Out of unused blocks\n"); | |
0dc08a35 | 872 | return -ENOSPC; |
1da177e4 LT |
873 | } |
874 | info->pba_to_lba[pba] = lba; | |
875 | info->lba_to_pba[lba] = pba; | |
1da177e4 LT |
876 | } |
877 | ||
878 | if (pba == 1) { | |
f0183a33 FB |
879 | /* |
880 | * Maybe it is impossible to write to PBA 1. | |
881 | * Fake success, but don't do anything. | |
882 | */ | |
6f8aa65b | 883 | printk(KERN_WARNING "sddr09: avoid writing to pba 1\n"); |
0dc08a35 | 884 | return 0; |
1da177e4 LT |
885 | } |
886 | ||
887 | pagelen = (1 << info->pageshift) + (1 << CONTROL_SHIFT); | |
888 | ||
889 | /* read old contents */ | |
890 | address = (pba << (info->pageshift + info->blockshift)); | |
891 | result = sddr09_read22(us, address>>1, info->blocksize, | |
892 | info->pageshift, blockbuffer, 0); | |
0dc08a35 | 893 | if (result) |
1da177e4 LT |
894 | return result; |
895 | ||
896 | /* check old contents and fill lba */ | |
897 | for (i = 0; i < info->blocksize; i++) { | |
898 | bptr = blockbuffer + i*pagelen; | |
899 | cptr = bptr + info->pagesize; | |
900 | nand_compute_ecc(bptr, ecc); | |
901 | if (!nand_compare_ecc(cptr+13, ecc)) { | |
191648d0 JP |
902 | usb_stor_dbg(us, "Warning: bad ecc in page %d- of pba %d\n", |
903 | i, pba); | |
1da177e4 LT |
904 | nand_store_ecc(cptr+13, ecc); |
905 | } | |
906 | nand_compute_ecc(bptr+(info->pagesize / 2), ecc); | |
907 | if (!nand_compare_ecc(cptr+8, ecc)) { | |
191648d0 JP |
908 | usb_stor_dbg(us, "Warning: bad ecc in page %d+ of pba %d\n", |
909 | i, pba); | |
1da177e4 LT |
910 | nand_store_ecc(cptr+8, ecc); |
911 | } | |
912 | cptr[6] = cptr[11] = MSB_of(lbap); | |
913 | cptr[7] = cptr[12] = LSB_of(lbap); | |
914 | } | |
915 | ||
916 | /* copy in new stuff and compute ECC */ | |
917 | xptr = ptr; | |
918 | for (i = page; i < page+pages; i++) { | |
919 | bptr = blockbuffer + i*pagelen; | |
920 | cptr = bptr + info->pagesize; | |
921 | memcpy(bptr, xptr, info->pagesize); | |
922 | xptr += info->pagesize; | |
923 | nand_compute_ecc(bptr, ecc); | |
924 | nand_store_ecc(cptr+13, ecc); | |
925 | nand_compute_ecc(bptr+(info->pagesize / 2), ecc); | |
926 | nand_store_ecc(cptr+8, ecc); | |
927 | } | |
928 | ||
191648d0 | 929 | usb_stor_dbg(us, "Rewrite PBA %d (LBA %d)\n", pba, lba); |
1da177e4 LT |
930 | |
931 | result = sddr09_write_inplace(us, address>>1, info->blocksize, | |
932 | info->pageshift, blockbuffer, 0); | |
933 | ||
191648d0 | 934 | usb_stor_dbg(us, "sddr09_write_inplace returns %d\n", result); |
1da177e4 LT |
935 | |
936 | #if 0 | |
937 | { | |
938 | unsigned char status = 0; | |
939 | int result2 = sddr09_read_status(us, &status); | |
0dc08a35 | 940 | if (result2) |
191648d0 | 941 | usb_stor_dbg(us, "cannot read status\n"); |
1da177e4 | 942 | else if (status != 0xc0) |
191648d0 | 943 | usb_stor_dbg(us, "status after write: 0x%x\n", status); |
1da177e4 LT |
944 | } |
945 | #endif | |
946 | ||
947 | #if 0 | |
948 | { | |
949 | int result2 = sddr09_test_unit_ready(us); | |
950 | } | |
951 | #endif | |
952 | ||
953 | return result; | |
954 | } | |
955 | ||
956 | static int | |
957 | sddr09_write_data(struct us_data *us, | |
958 | unsigned long address, | |
959 | unsigned int sectors) { | |
960 | ||
961 | struct sddr09_card_info *info = (struct sddr09_card_info *) us->extra; | |
a6c976c6 | 962 | unsigned int lba, maxlba, page, pages; |
1da177e4 LT |
963 | unsigned int pagelen, blocklen; |
964 | unsigned char *blockbuffer; | |
965 | unsigned char *buffer; | |
1f6f31a0 JA |
966 | unsigned int len, offset; |
967 | struct scatterlist *sg; | |
1da177e4 LT |
968 | int result; |
969 | ||
f0183a33 | 970 | /* Figure out the initial LBA and page */ |
a6c976c6 MD |
971 | lba = address >> info->blockshift; |
972 | page = (address & info->blockmask); | |
973 | maxlba = info->capacity >> (info->pageshift + info->blockshift); | |
974 | if (lba >= maxlba) | |
975 | return -EIO; | |
976 | ||
f0183a33 FB |
977 | /* |
978 | * blockbuffer is used for reading in the old data, overwriting | |
979 | * with the new data, and performing ECC calculations | |
980 | */ | |
1da177e4 | 981 | |
f0183a33 FB |
982 | /* |
983 | * TODO: instead of doing kmalloc/kfree for each write, | |
984 | * add a bufferpointer to the info structure | |
985 | */ | |
1da177e4 LT |
986 | |
987 | pagelen = (1 << info->pageshift) + (1 << CONTROL_SHIFT); | |
988 | blocklen = (pagelen << info->blockshift); | |
989 | blockbuffer = kmalloc(blocklen, GFP_NOIO); | |
fd233925 | 990 | if (!blockbuffer) |
0dc08a35 | 991 | return -ENOMEM; |
1da177e4 | 992 | |
f0183a33 FB |
993 | /* |
994 | * Since we don't write the user data directly to the device, | |
995 | * we have to create a bounce buffer and move the data a piece | |
996 | * at a time between the bounce buffer and the actual transfer buffer. | |
997 | */ | |
1da177e4 LT |
998 | |
999 | len = min(sectors, (unsigned int) info->blocksize) * info->pagesize; | |
1000 | buffer = kmalloc(len, GFP_NOIO); | |
fd233925 | 1001 | if (!buffer) { |
1da177e4 | 1002 | kfree(blockbuffer); |
0dc08a35 | 1003 | return -ENOMEM; |
1da177e4 LT |
1004 | } |
1005 | ||
0dc08a35 | 1006 | result = 0; |
1f6f31a0 JA |
1007 | offset = 0; |
1008 | sg = NULL; | |
1da177e4 LT |
1009 | |
1010 | while (sectors > 0) { | |
1011 | ||
f0183a33 | 1012 | /* Write as many sectors as possible in this block */ |
1da177e4 LT |
1013 | |
1014 | pages = min(sectors, info->blocksize - page); | |
1015 | len = (pages << info->pageshift); | |
1016 | ||
a6c976c6 MD |
1017 | /* Not overflowing capacity? */ |
1018 | if (lba >= maxlba) { | |
191648d0 JP |
1019 | usb_stor_dbg(us, "Error: Requested lba %u exceeds maximum %u\n", |
1020 | lba, maxlba); | |
a6c976c6 MD |
1021 | result = -EIO; |
1022 | break; | |
1023 | } | |
1024 | ||
f0183a33 | 1025 | /* Get the data from the transfer buffer */ |
1da177e4 | 1026 | usb_stor_access_xfer_buf(buffer, len, us->srb, |
1f6f31a0 | 1027 | &sg, &offset, FROM_XFER_BUF); |
1da177e4 LT |
1028 | |
1029 | result = sddr09_write_lba(us, lba, page, pages, | |
1030 | buffer, blockbuffer); | |
0dc08a35 | 1031 | if (result) |
1da177e4 LT |
1032 | break; |
1033 | ||
1034 | page = 0; | |
1035 | lba++; | |
1036 | sectors -= pages; | |
1037 | } | |
1038 | ||
1039 | kfree(buffer); | |
1040 | kfree(blockbuffer); | |
1041 | ||
1042 | return result; | |
1043 | } | |
1044 | ||
1045 | static int | |
1046 | sddr09_read_control(struct us_data *us, | |
1047 | unsigned long address, | |
1048 | unsigned int blocks, | |
1049 | unsigned char *content, | |
1050 | int use_sg) { | |
1051 | ||
191648d0 JP |
1052 | usb_stor_dbg(us, "Read control address %lu, blocks %d\n", |
1053 | address, blocks); | |
1da177e4 LT |
1054 | |
1055 | return sddr09_read21(us, address, blocks, | |
1056 | CONTROL_SHIFT, content, use_sg); | |
1057 | } | |
1058 | ||
1059 | /* | |
1060 | * Read Device ID Command: 12 bytes. | |
1061 | * byte 0: opcode: ED | |
1062 | * | |
1063 | * Returns 2 bytes: Manufacturer ID and Device ID. | |
1064 | * On more recent cards 3 bytes: the third byte is an option code A5 | |
1065 | * signifying that the secret command to read an 128-bit ID is available. | |
1066 | * On still more recent cards 4 bytes: the fourth byte C0 means that | |
1067 | * a second read ID cmd is available. | |
1068 | */ | |
1069 | static int | |
1070 | sddr09_read_deviceID(struct us_data *us, unsigned char *deviceID) { | |
1071 | unsigned char *command = us->iobuf; | |
1072 | unsigned char *content = us->iobuf; | |
1073 | int result, i; | |
1074 | ||
1075 | memset(command, 0, 12); | |
1076 | command[0] = 0xED; | |
1077 | command[1] = LUNBITS; | |
1078 | ||
1079 | result = sddr09_send_scsi_command(us, command, 12); | |
0dc08a35 | 1080 | if (result) |
1da177e4 LT |
1081 | return result; |
1082 | ||
1083 | result = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe, | |
1084 | content, 64, NULL); | |
1085 | ||
1086 | for (i = 0; i < 4; i++) | |
1087 | deviceID[i] = content[i]; | |
1088 | ||
0dc08a35 | 1089 | return (result == USB_STOR_XFER_GOOD ? 0 : -EIO); |
1da177e4 LT |
1090 | } |
1091 | ||
1092 | static int | |
1093 | sddr09_get_wp(struct us_data *us, struct sddr09_card_info *info) { | |
1094 | int result; | |
1095 | unsigned char status; | |
ef976ea3 | 1096 | const char *wp_fmt; |
1da177e4 LT |
1097 | |
1098 | result = sddr09_read_status(us, &status); | |
0dc08a35 | 1099 | if (result) { |
191648d0 | 1100 | usb_stor_dbg(us, "read_status fails\n"); |
1da177e4 LT |
1101 | return result; |
1102 | } | |
1da177e4 LT |
1103 | if ((status & 0x80) == 0) { |
1104 | info->flags |= SDDR09_WP; /* write protected */ | |
ef976ea3 VD |
1105 | wp_fmt = " WP"; |
1106 | } else { | |
1107 | wp_fmt = ""; | |
1da177e4 | 1108 | } |
ef976ea3 VD |
1109 | usb_stor_dbg(us, "status 0x%02X%s%s%s%s\n", status, wp_fmt, |
1110 | status & 0x40 ? " Ready" : "", | |
1111 | status & LUNBITS ? " Suspended" : "", | |
1112 | status & 0x01 ? " Error" : ""); | |
1113 | ||
0dc08a35 | 1114 | return 0; |
1da177e4 LT |
1115 | } |
1116 | ||
1117 | #if 0 | |
1118 | /* | |
1119 | * Reset Command: 12 bytes. | |
1120 | * byte 0: opcode: EB | |
1121 | */ | |
1122 | static int | |
1123 | sddr09_reset(struct us_data *us) { | |
1124 | ||
1125 | unsigned char *command = us->iobuf; | |
1126 | ||
1127 | memset(command, 0, 12); | |
1128 | command[0] = 0xEB; | |
1129 | command[1] = LUNBITS; | |
1130 | ||
1131 | return sddr09_send_scsi_command(us, command, 12); | |
1132 | } | |
1133 | #endif | |
1134 | ||
1135 | static struct nand_flash_dev * | |
1136 | sddr09_get_cardinfo(struct us_data *us, unsigned char flags) { | |
1137 | struct nand_flash_dev *cardinfo; | |
1138 | unsigned char deviceID[4]; | |
1139 | char blurbtxt[256]; | |
1140 | int result; | |
1141 | ||
191648d0 | 1142 | usb_stor_dbg(us, "Reading capacity...\n"); |
1da177e4 LT |
1143 | |
1144 | result = sddr09_read_deviceID(us, deviceID); | |
1145 | ||
0dc08a35 | 1146 | if (result) { |
191648d0 | 1147 | usb_stor_dbg(us, "Result of read_deviceID is %d\n", result); |
6f8aa65b | 1148 | printk(KERN_WARNING "sddr09: could not read card info\n"); |
1da177e4 LT |
1149 | return NULL; |
1150 | } | |
1151 | ||
7adce467 | 1152 | sprintf(blurbtxt, "sddr09: Found Flash card, ID = %4ph", deviceID); |
1da177e4 LT |
1153 | |
1154 | /* Byte 0 is the manufacturer */ | |
1155 | sprintf(blurbtxt + strlen(blurbtxt), | |
1156 | ": Manuf. %s", | |
1157 | nand_flash_manufacturer(deviceID[0])); | |
1158 | ||
1159 | /* Byte 1 is the device type */ | |
1160 | cardinfo = nand_find_id(deviceID[1]); | |
1161 | if (cardinfo) { | |
f0183a33 FB |
1162 | /* |
1163 | * MB or MiB? It is neither. A 16 MB card has | |
1164 | * 17301504 raw bytes, of which 16384000 are | |
1165 | * usable for user data. | |
1166 | */ | |
1da177e4 LT |
1167 | sprintf(blurbtxt + strlen(blurbtxt), |
1168 | ", %d MB", 1<<(cardinfo->chipshift - 20)); | |
1169 | } else { | |
1170 | sprintf(blurbtxt + strlen(blurbtxt), | |
1171 | ", type unrecognized"); | |
1172 | } | |
1173 | ||
1174 | /* Byte 2 is code to signal availability of 128-bit ID */ | |
1175 | if (deviceID[2] == 0xa5) { | |
1176 | sprintf(blurbtxt + strlen(blurbtxt), | |
1177 | ", 128-bit ID"); | |
1178 | } | |
1179 | ||
1180 | /* Byte 3 announces the availability of another read ID command */ | |
1181 | if (deviceID[3] == 0xc0) { | |
1182 | sprintf(blurbtxt + strlen(blurbtxt), | |
1183 | ", extra cmd"); | |
1184 | } | |
1185 | ||
1186 | if (flags & SDDR09_WP) | |
1187 | sprintf(blurbtxt + strlen(blurbtxt), | |
1188 | ", WP"); | |
1189 | ||
6f8aa65b | 1190 | printk(KERN_WARNING "%s\n", blurbtxt); |
1da177e4 LT |
1191 | |
1192 | return cardinfo; | |
1193 | } | |
1194 | ||
1195 | static int | |
1196 | sddr09_read_map(struct us_data *us) { | |
1197 | ||
1198 | struct sddr09_card_info *info = (struct sddr09_card_info *) us->extra; | |
1199 | int numblocks, alloc_len, alloc_blocks; | |
1200 | int i, j, result; | |
1201 | unsigned char *buffer, *buffer_end, *ptr; | |
1202 | unsigned int lba, lbact; | |
1203 | ||
1204 | if (!info->capacity) | |
1205 | return -1; | |
1206 | ||
f0183a33 FB |
1207 | /* |
1208 | * size of a block is 1 << (blockshift + pageshift) bytes | |
1209 | * divide into the total capacity to get the number of blocks | |
1210 | */ | |
1da177e4 LT |
1211 | |
1212 | numblocks = info->capacity >> (info->blockshift + info->pageshift); | |
1213 | ||
f0183a33 FB |
1214 | /* |
1215 | * read 64 bytes for every block (actually 1 << CONTROL_SHIFT) | |
1216 | * but only use a 64 KB buffer | |
1217 | * buffer size used must be a multiple of (1 << CONTROL_SHIFT) | |
1218 | */ | |
1da177e4 LT |
1219 | #define SDDR09_READ_MAP_BUFSZ 65536 |
1220 | ||
1221 | alloc_blocks = min(numblocks, SDDR09_READ_MAP_BUFSZ >> CONTROL_SHIFT); | |
1222 | alloc_len = (alloc_blocks << CONTROL_SHIFT); | |
1223 | buffer = kmalloc(alloc_len, GFP_NOIO); | |
fd233925 | 1224 | if (!buffer) { |
1da177e4 LT |
1225 | result = -1; |
1226 | goto done; | |
1227 | } | |
1228 | buffer_end = buffer + alloc_len; | |
1229 | ||
1230 | #undef SDDR09_READ_MAP_BUFSZ | |
1231 | ||
1232 | kfree(info->lba_to_pba); | |
1233 | kfree(info->pba_to_lba); | |
6da2ec56 KC |
1234 | info->lba_to_pba = kmalloc_array(numblocks, sizeof(int), GFP_NOIO); |
1235 | info->pba_to_lba = kmalloc_array(numblocks, sizeof(int), GFP_NOIO); | |
1da177e4 LT |
1236 | |
1237 | if (info->lba_to_pba == NULL || info->pba_to_lba == NULL) { | |
6f8aa65b | 1238 | printk(KERN_WARNING "sddr09_read_map: out of memory\n"); |
1da177e4 LT |
1239 | result = -1; |
1240 | goto done; | |
1241 | } | |
1242 | ||
1243 | for (i = 0; i < numblocks; i++) | |
1244 | info->lba_to_pba[i] = info->pba_to_lba[i] = UNDEF; | |
1245 | ||
1246 | /* | |
1247 | * Define lba-pba translation table | |
1248 | */ | |
1249 | ||
1250 | ptr = buffer_end; | |
1251 | for (i = 0; i < numblocks; i++) { | |
1252 | ptr += (1 << CONTROL_SHIFT); | |
1253 | if (ptr >= buffer_end) { | |
1254 | unsigned long address; | |
1255 | ||
1256 | address = i << (info->pageshift + info->blockshift); | |
1257 | result = sddr09_read_control( | |
1258 | us, address>>1, | |
1259 | min(alloc_blocks, numblocks - i), | |
1260 | buffer, 0); | |
0dc08a35 | 1261 | if (result) { |
1da177e4 LT |
1262 | result = -1; |
1263 | goto done; | |
1264 | } | |
1265 | ptr = buffer; | |
1266 | } | |
1267 | ||
1268 | if (i == 0 || i == 1) { | |
1269 | info->pba_to_lba[i] = UNUSABLE; | |
1270 | continue; | |
1271 | } | |
1272 | ||
1273 | /* special PBAs have control field 0^16 */ | |
1274 | for (j = 0; j < 16; j++) | |
1275 | if (ptr[j] != 0) | |
1276 | goto nonz; | |
1277 | info->pba_to_lba[i] = UNUSABLE; | |
6f8aa65b FS |
1278 | printk(KERN_WARNING "sddr09: PBA %d has no logical mapping\n", |
1279 | i); | |
1da177e4 LT |
1280 | continue; |
1281 | ||
1282 | nonz: | |
1283 | /* unwritten PBAs have control field FF^16 */ | |
1284 | for (j = 0; j < 16; j++) | |
1285 | if (ptr[j] != 0xff) | |
1286 | goto nonff; | |
1287 | continue; | |
1288 | ||
1289 | nonff: | |
1290 | /* normal PBAs start with six FFs */ | |
1291 | if (j < 6) { | |
6f8aa65b FS |
1292 | printk(KERN_WARNING |
1293 | "sddr09: PBA %d has no logical mapping: " | |
1da177e4 LT |
1294 | "reserved area = %02X%02X%02X%02X " |
1295 | "data status %02X block status %02X\n", | |
1296 | i, ptr[0], ptr[1], ptr[2], ptr[3], | |
1297 | ptr[4], ptr[5]); | |
1298 | info->pba_to_lba[i] = UNUSABLE; | |
1299 | continue; | |
1300 | } | |
1301 | ||
1302 | if ((ptr[6] >> 4) != 0x01) { | |
6f8aa65b FS |
1303 | printk(KERN_WARNING |
1304 | "sddr09: PBA %d has invalid address field " | |
1da177e4 LT |
1305 | "%02X%02X/%02X%02X\n", |
1306 | i, ptr[6], ptr[7], ptr[11], ptr[12]); | |
1307 | info->pba_to_lba[i] = UNUSABLE; | |
1308 | continue; | |
1309 | } | |
1310 | ||
1311 | /* check even parity */ | |
1312 | if (parity[ptr[6] ^ ptr[7]]) { | |
6f8aa65b FS |
1313 | printk(KERN_WARNING |
1314 | "sddr09: Bad parity in LBA for block %d" | |
1da177e4 LT |
1315 | " (%02X %02X)\n", i, ptr[6], ptr[7]); |
1316 | info->pba_to_lba[i] = UNUSABLE; | |
1317 | continue; | |
1318 | } | |
1319 | ||
1320 | lba = short_pack(ptr[7], ptr[6]); | |
1321 | lba = (lba & 0x07FF) >> 1; | |
1322 | ||
1323 | /* | |
1324 | * Every 1024 physical blocks ("zone"), the LBA numbers | |
1325 | * go back to zero, but are within a higher block of LBA's. | |
1326 | * Also, there is a maximum of 1000 LBA's per zone. | |
1327 | * In other words, in PBA 1024-2047 you will find LBA 0-999 | |
1328 | * which are really LBA 1000-1999. This allows for 24 bad | |
1329 | * or special physical blocks per zone. | |
1330 | */ | |
1331 | ||
1332 | if (lba >= 1000) { | |
6f8aa65b FS |
1333 | printk(KERN_WARNING |
1334 | "sddr09: Bad low LBA %d for block %d\n", | |
1da177e4 LT |
1335 | lba, i); |
1336 | goto possibly_erase; | |
1337 | } | |
1338 | ||
1339 | lba += 1000*(i/0x400); | |
1340 | ||
1341 | if (info->lba_to_pba[lba] != UNDEF) { | |
6f8aa65b FS |
1342 | printk(KERN_WARNING |
1343 | "sddr09: LBA %d seen for PBA %d and %d\n", | |
1da177e4 LT |
1344 | lba, info->lba_to_pba[lba], i); |
1345 | goto possibly_erase; | |
1346 | } | |
1347 | ||
1348 | info->pba_to_lba[i] = lba; | |
1349 | info->lba_to_pba[lba] = i; | |
1350 | continue; | |
1351 | ||
1352 | possibly_erase: | |
1353 | if (erase_bad_lba_entries) { | |
1354 | unsigned long address; | |
1355 | ||
1356 | address = (i << (info->pageshift + info->blockshift)); | |
1357 | sddr09_erase(us, address>>1); | |
1358 | info->pba_to_lba[i] = UNDEF; | |
1359 | } else | |
1360 | info->pba_to_lba[i] = UNUSABLE; | |
1361 | } | |
1362 | ||
1363 | /* | |
1364 | * Approximate capacity. This is not entirely correct yet, | |
1365 | * since a zone with less than 1000 usable pages leads to | |
1366 | * missing LBAs. Especially if it is the last zone, some | |
1367 | * LBAs can be past capacity. | |
1368 | */ | |
1369 | lbact = 0; | |
1370 | for (i = 0; i < numblocks; i += 1024) { | |
1371 | int ct = 0; | |
1372 | ||
1373 | for (j = 0; j < 1024 && i+j < numblocks; j++) { | |
1374 | if (info->pba_to_lba[i+j] != UNUSABLE) { | |
1375 | if (ct >= 1000) | |
1376 | info->pba_to_lba[i+j] = SPARE; | |
1377 | else | |
1378 | ct++; | |
1379 | } | |
1380 | } | |
1381 | lbact += ct; | |
1382 | } | |
1383 | info->lbact = lbact; | |
191648d0 | 1384 | usb_stor_dbg(us, "Found %d LBA's\n", lbact); |
1da177e4 LT |
1385 | result = 0; |
1386 | ||
1387 | done: | |
1388 | if (result != 0) { | |
1389 | kfree(info->lba_to_pba); | |
1390 | kfree(info->pba_to_lba); | |
1391 | info->lba_to_pba = NULL; | |
1392 | info->pba_to_lba = NULL; | |
1393 | } | |
1394 | kfree(buffer); | |
1395 | return result; | |
1396 | } | |
1397 | ||
1398 | static void | |
1399 | sddr09_card_info_destructor(void *extra) { | |
1400 | struct sddr09_card_info *info = (struct sddr09_card_info *)extra; | |
1401 | ||
1402 | if (!info) | |
1403 | return; | |
1404 | ||
1405 | kfree(info->lba_to_pba); | |
1406 | kfree(info->pba_to_lba); | |
1407 | } | |
1408 | ||
f5b8cb9c MD |
1409 | static int |
1410 | sddr09_common_init(struct us_data *us) { | |
1411 | int result; | |
1412 | ||
1413 | /* set the configuration -- STALL is an acceptable response here */ | |
1414 | if (us->pusb_dev->actconfig->desc.bConfigurationValue != 1) { | |
191648d0 JP |
1415 | usb_stor_dbg(us, "active config #%d != 1 ??\n", |
1416 | us->pusb_dev->actconfig->desc.bConfigurationValue); | |
f5b8cb9c MD |
1417 | return -EINVAL; |
1418 | } | |
1419 | ||
1420 | result = usb_reset_configuration(us->pusb_dev); | |
191648d0 | 1421 | usb_stor_dbg(us, "Result of usb_reset_configuration is %d\n", result); |
f5b8cb9c | 1422 | if (result == -EPIPE) { |
191648d0 | 1423 | usb_stor_dbg(us, "-- stall on control interface\n"); |
f5b8cb9c MD |
1424 | } else if (result != 0) { |
1425 | /* it's not a stall, but another error -- time to bail */ | |
191648d0 | 1426 | usb_stor_dbg(us, "-- Unknown error. Rejecting device\n"); |
f5b8cb9c | 1427 | return -EINVAL; |
1da177e4 | 1428 | } |
f5b8cb9c MD |
1429 | |
1430 | us->extra = kzalloc(sizeof(struct sddr09_card_info), GFP_NOIO); | |
1431 | if (!us->extra) | |
1432 | return -ENOMEM; | |
1433 | us->extra_destructor = sddr09_card_info_destructor; | |
1434 | ||
1435 | nand_init_ecc(); | |
1436 | return 0; | |
1da177e4 LT |
1437 | } |
1438 | ||
f5b8cb9c | 1439 | |
1da177e4 LT |
1440 | /* |
1441 | * This is needed at a very early stage. If this is not listed in the | |
1442 | * unusual devices list but called from here then LUN 0 of the combo reader | |
1443 | * is not recognized. But I do not know what precisely these calls do. | |
1444 | */ | |
0ff71883 | 1445 | static int |
f5b8cb9c | 1446 | usb_stor_sddr09_dpcm_init(struct us_data *us) { |
1da177e4 LT |
1447 | int result; |
1448 | unsigned char *data = us->iobuf; | |
1449 | ||
f5b8cb9c MD |
1450 | result = sddr09_common_init(us); |
1451 | if (result) | |
1452 | return result; | |
1453 | ||
1da177e4 | 1454 | result = sddr09_send_command(us, 0x01, USB_DIR_IN, data, 2); |
0dc08a35 | 1455 | if (result) { |
191648d0 | 1456 | usb_stor_dbg(us, "send_command fails\n"); |
1da177e4 LT |
1457 | return result; |
1458 | } | |
1459 | ||
191648d0 | 1460 | usb_stor_dbg(us, "%02X %02X\n", data[0], data[1]); |
1da177e4 LT |
1461 | // get 07 02 |
1462 | ||
1463 | result = sddr09_send_command(us, 0x08, USB_DIR_IN, data, 2); | |
0dc08a35 | 1464 | if (result) { |
191648d0 | 1465 | usb_stor_dbg(us, "2nd send_command fails\n"); |
1da177e4 LT |
1466 | return result; |
1467 | } | |
1468 | ||
191648d0 | 1469 | usb_stor_dbg(us, "%02X %02X\n", data[0], data[1]); |
1da177e4 LT |
1470 | // get 07 00 |
1471 | ||
1472 | result = sddr09_request_sense(us, data, 18); | |
0dc08a35 | 1473 | if (result == 0 && data[2] != 0) { |
1da177e4 LT |
1474 | int j; |
1475 | for (j=0; j<18; j++) | |
1476 | printk(" %02X", data[j]); | |
1477 | printk("\n"); | |
1478 | // get 70 00 00 00 00 00 00 * 00 00 00 00 00 00 | |
1479 | // 70: current command | |
1480 | // sense key 0, sense code 0, extd sense code 0 | |
1481 | // additional transfer length * = sizeof(data) - 7 | |
1482 | // Or: 70 00 06 00 00 00 00 0b 00 00 00 00 28 00 00 00 00 00 | |
1483 | // sense key 06, sense code 28: unit attention, | |
1484 | // not ready to ready transition | |
1485 | } | |
1486 | ||
1487 | // test unit ready | |
1488 | ||
f5b8cb9c | 1489 | return 0; /* not result */ |
1da177e4 LT |
1490 | } |
1491 | ||
c20b15fd AS |
1492 | /* |
1493 | * Transport for the Microtech DPCM-USB | |
1494 | */ | |
0ff71883 | 1495 | static int dpcm_transport(struct scsi_cmnd *srb, struct us_data *us) |
c20b15fd AS |
1496 | { |
1497 | int ret; | |
1498 | ||
9cb78c16 | 1499 | usb_stor_dbg(us, "LUN=%d\n", (u8)srb->device->lun); |
c20b15fd AS |
1500 | |
1501 | switch (srb->device->lun) { | |
1502 | case 0: | |
1503 | ||
1504 | /* | |
1505 | * LUN 0 corresponds to the CompactFlash card reader. | |
1506 | */ | |
1507 | ret = usb_stor_CB_transport(srb, us); | |
1508 | break; | |
1509 | ||
1510 | case 1: | |
1511 | ||
1512 | /* | |
1513 | * LUN 1 corresponds to the SmartMedia card reader. | |
1514 | */ | |
1515 | ||
1516 | /* | |
1517 | * Set the LUN to 0 (just in case). | |
1518 | */ | |
1519 | srb->device->lun = 0; | |
1520 | ret = sddr09_transport(srb, us); | |
1521 | srb->device->lun = 1; | |
1522 | break; | |
1523 | ||
1524 | default: | |
9cb78c16 | 1525 | usb_stor_dbg(us, "Invalid LUN %d\n", (u8)srb->device->lun); |
c20b15fd AS |
1526 | ret = USB_STOR_TRANSPORT_ERROR; |
1527 | break; | |
1528 | } | |
1529 | return ret; | |
1530 | } | |
1531 | ||
1532 | ||
1da177e4 LT |
1533 | /* |
1534 | * Transport for the Sandisk SDDR-09 | |
1535 | */ | |
0ff71883 | 1536 | static int sddr09_transport(struct scsi_cmnd *srb, struct us_data *us) |
1da177e4 LT |
1537 | { |
1538 | static unsigned char sensekey = 0, sensecode = 0; | |
1539 | static unsigned char havefakesense = 0; | |
1540 | int result, i; | |
1541 | unsigned char *ptr = us->iobuf; | |
1542 | unsigned long capacity; | |
1543 | unsigned int page, pages; | |
1544 | ||
1545 | struct sddr09_card_info *info; | |
1546 | ||
1547 | static unsigned char inquiry_response[8] = { | |
1548 | 0x00, 0x80, 0x00, 0x02, 0x1F, 0x00, 0x00, 0x00 | |
1549 | }; | |
1550 | ||
1551 | /* note: no block descriptor support */ | |
1552 | static unsigned char mode_page_01[19] = { | |
1553 | 0x00, 0x0F, 0x00, 0x0, 0x0, 0x0, 0x00, | |
1554 | 0x01, 0x0A, | |
1555 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 | |
1556 | }; | |
1557 | ||
1558 | info = (struct sddr09_card_info *)us->extra; | |
1da177e4 LT |
1559 | |
1560 | if (srb->cmnd[0] == REQUEST_SENSE && havefakesense) { | |
1561 | /* for a faked command, we have to follow with a faked sense */ | |
1562 | memset(ptr, 0, 18); | |
1563 | ptr[0] = 0x70; | |
1564 | ptr[2] = sensekey; | |
1565 | ptr[7] = 11; | |
1566 | ptr[12] = sensecode; | |
1567 | usb_stor_set_xfer_buf(ptr, 18, srb); | |
1568 | sensekey = sensecode = havefakesense = 0; | |
1569 | return USB_STOR_TRANSPORT_GOOD; | |
1570 | } | |
1571 | ||
1572 | havefakesense = 1; | |
1573 | ||
f0183a33 FB |
1574 | /* |
1575 | * Dummy up a response for INQUIRY since SDDR09 doesn't | |
1576 | * respond to INQUIRY commands | |
1577 | */ | |
1da177e4 LT |
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 | ||
f0183a33 FB |
1629 | /* |
1630 | * They ask for the Read/Write error recovery page, | |
1631 | * or for all pages. | |
1632 | */ | |
1da177e4 LT |
1633 | /* %% We should check DBD %% */ |
1634 | if (modepage == 0x01 || modepage == 0x3F) { | |
191648d0 JP |
1635 | usb_stor_dbg(us, "Dummy up request for mode page 0x%x\n", |
1636 | modepage); | |
1da177e4 LT |
1637 | |
1638 | memcpy(ptr, mode_page_01, sizeof(mode_page_01)); | |
1639 | ((__be16*)ptr)[0] = cpu_to_be16(sizeof(mode_page_01) - 2); | |
1640 | ptr[3] = (info->flags & SDDR09_WP) ? 0x80 : 0; | |
1641 | usb_stor_set_xfer_buf(ptr, sizeof(mode_page_01), srb); | |
1642 | return USB_STOR_TRANSPORT_GOOD; | |
1643 | } | |
1644 | ||
1645 | sensekey = 0x05; /* illegal request */ | |
1646 | sensecode = 0x24; /* invalid field in CDB */ | |
1647 | return USB_STOR_TRANSPORT_FAILED; | |
1648 | } | |
1649 | ||
1650 | if (srb->cmnd[0] == ALLOW_MEDIUM_REMOVAL) | |
1651 | return USB_STOR_TRANSPORT_GOOD; | |
1652 | ||
1653 | havefakesense = 0; | |
1654 | ||
1655 | if (srb->cmnd[0] == READ_10) { | |
1656 | ||
1657 | page = short_pack(srb->cmnd[3], srb->cmnd[2]); | |
1658 | page <<= 16; | |
1659 | page |= short_pack(srb->cmnd[5], srb->cmnd[4]); | |
1660 | pages = short_pack(srb->cmnd[8], srb->cmnd[7]); | |
1661 | ||
191648d0 JP |
1662 | usb_stor_dbg(us, "READ_10: read page %d pagect %d\n", |
1663 | page, pages); | |
1da177e4 | 1664 | |
0dc08a35 MD |
1665 | result = sddr09_read_data(us, page, pages); |
1666 | return (result == 0 ? USB_STOR_TRANSPORT_GOOD : | |
1667 | USB_STOR_TRANSPORT_ERROR); | |
1da177e4 LT |
1668 | } |
1669 | ||
1670 | if (srb->cmnd[0] == WRITE_10) { | |
1671 | ||
1672 | page = short_pack(srb->cmnd[3], srb->cmnd[2]); | |
1673 | page <<= 16; | |
1674 | page |= short_pack(srb->cmnd[5], srb->cmnd[4]); | |
1675 | pages = short_pack(srb->cmnd[8], srb->cmnd[7]); | |
1676 | ||
191648d0 JP |
1677 | usb_stor_dbg(us, "WRITE_10: write page %d pagect %d\n", |
1678 | page, pages); | |
1da177e4 | 1679 | |
0dc08a35 MD |
1680 | result = sddr09_write_data(us, page, pages); |
1681 | return (result == 0 ? USB_STOR_TRANSPORT_GOOD : | |
1682 | USB_STOR_TRANSPORT_ERROR); | |
1da177e4 LT |
1683 | } |
1684 | ||
f0183a33 FB |
1685 | /* |
1686 | * catch-all for all other commands, except | |
1da177e4 LT |
1687 | * pass TEST_UNIT_READY and REQUEST_SENSE through |
1688 | */ | |
1689 | if (srb->cmnd[0] != TEST_UNIT_READY && | |
1690 | srb->cmnd[0] != REQUEST_SENSE) { | |
1691 | sensekey = 0x05; /* illegal request */ | |
1692 | sensecode = 0x20; /* invalid command */ | |
1693 | havefakesense = 1; | |
1694 | return USB_STOR_TRANSPORT_FAILED; | |
1695 | } | |
1696 | ||
1697 | for (; srb->cmd_len<12; srb->cmd_len++) | |
1698 | srb->cmnd[srb->cmd_len] = 0; | |
1699 | ||
1700 | srb->cmnd[1] = LUNBITS; | |
1701 | ||
1702 | ptr[0] = 0; | |
1703 | for (i=0; i<12; i++) | |
1704 | sprintf(ptr+strlen(ptr), "%02X ", srb->cmnd[i]); | |
1705 | ||
191648d0 | 1706 | usb_stor_dbg(us, "Send control for command %s\n", ptr); |
1da177e4 LT |
1707 | |
1708 | result = sddr09_send_scsi_command(us, srb->cmnd, 12); | |
0dc08a35 | 1709 | if (result) { |
191648d0 JP |
1710 | usb_stor_dbg(us, "sddr09_send_scsi_command returns %d\n", |
1711 | result); | |
0dc08a35 | 1712 | return USB_STOR_TRANSPORT_ERROR; |
1da177e4 LT |
1713 | } |
1714 | ||
41c2497b | 1715 | if (scsi_bufflen(srb) == 0) |
1da177e4 LT |
1716 | return USB_STOR_TRANSPORT_GOOD; |
1717 | ||
1718 | if (srb->sc_data_direction == DMA_TO_DEVICE || | |
1719 | srb->sc_data_direction == DMA_FROM_DEVICE) { | |
1720 | unsigned int pipe = (srb->sc_data_direction == DMA_TO_DEVICE) | |
1721 | ? us->send_bulk_pipe : us->recv_bulk_pipe; | |
1722 | ||
191648d0 JP |
1723 | usb_stor_dbg(us, "%s %d bytes\n", |
1724 | (srb->sc_data_direction == DMA_TO_DEVICE) ? | |
1725 | "sending" : "receiving", | |
1726 | scsi_bufflen(srb)); | |
1da177e4 | 1727 | |
41c2497b | 1728 | result = usb_stor_bulk_srb(us, pipe, srb); |
1da177e4 LT |
1729 | |
1730 | return (result == USB_STOR_XFER_GOOD ? | |
1731 | USB_STOR_TRANSPORT_GOOD : USB_STOR_TRANSPORT_ERROR); | |
1732 | } | |
1733 | ||
1734 | return USB_STOR_TRANSPORT_GOOD; | |
1735 | } | |
1736 | ||
f5b8cb9c MD |
1737 | /* |
1738 | * Initialization routine for the sddr09 subdriver | |
1739 | */ | |
0ff71883 | 1740 | static int |
f5b8cb9c MD |
1741 | usb_stor_sddr09_init(struct us_data *us) { |
1742 | return sddr09_common_init(us); | |
1743 | } | |
0ff71883 | 1744 | |
aa519be3 AM |
1745 | static struct scsi_host_template sddr09_host_template; |
1746 | ||
0ff71883 AS |
1747 | static int sddr09_probe(struct usb_interface *intf, |
1748 | const struct usb_device_id *id) | |
1749 | { | |
1750 | struct us_data *us; | |
1751 | int result; | |
1752 | ||
1753 | result = usb_stor_probe1(&us, intf, id, | |
aa519be3 AM |
1754 | (id - sddr09_usb_ids) + sddr09_unusual_dev_list, |
1755 | &sddr09_host_template); | |
0ff71883 AS |
1756 | if (result) |
1757 | return result; | |
1758 | ||
8fa7fd74 | 1759 | if (us->protocol == USB_PR_DPCM_USB) { |
0ff71883 AS |
1760 | us->transport_name = "Control/Bulk-EUSB/SDDR09"; |
1761 | us->transport = dpcm_transport; | |
1762 | us->transport_reset = usb_stor_CB_reset; | |
1763 | us->max_lun = 1; | |
1764 | } else { | |
1765 | us->transport_name = "EUSB/SDDR09"; | |
1766 | us->transport = sddr09_transport; | |
1767 | us->transport_reset = usb_stor_CB_reset; | |
1768 | us->max_lun = 0; | |
1769 | } | |
1770 | ||
1771 | result = usb_stor_probe2(us); | |
1772 | return result; | |
1773 | } | |
1774 | ||
1775 | static struct usb_driver sddr09_driver = { | |
aa519be3 | 1776 | .name = DRV_NAME, |
0ff71883 AS |
1777 | .probe = sddr09_probe, |
1778 | .disconnect = usb_stor_disconnect, | |
1779 | .suspend = usb_stor_suspend, | |
1780 | .resume = usb_stor_resume, | |
1781 | .reset_resume = usb_stor_reset_resume, | |
1782 | .pre_reset = usb_stor_pre_reset, | |
1783 | .post_reset = usb_stor_post_reset, | |
1784 | .id_table = sddr09_usb_ids, | |
1785 | .soft_unbind = 1, | |
e73b2db6 | 1786 | .no_dynamic_id = 1, |
0ff71883 AS |
1787 | }; |
1788 | ||
aa519be3 | 1789 | module_usb_stor_driver(sddr09_driver, sddr09_host_template, DRV_NAME); |