Commit | Line | Data |
---|---|---|
88ae600d PO |
1 | /* |
2 | * linux/drivers/mmc/card/mmc_test.c | |
3 | * | |
0121a982 | 4 | * Copyright 2007-2008 Pierre Ossman |
88ae600d PO |
5 | * |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or (at | |
9 | * your option) any later version. | |
10 | */ | |
11 | ||
12 | #include <linux/mmc/core.h> | |
13 | #include <linux/mmc/card.h> | |
14 | #include <linux/mmc/host.h> | |
15 | #include <linux/mmc/mmc.h> | |
5a0e3ad6 | 16 | #include <linux/slab.h> |
88ae600d PO |
17 | |
18 | #include <linux/scatterlist.h> | |
19 | ||
20 | #define RESULT_OK 0 | |
21 | #define RESULT_FAIL 1 | |
22 | #define RESULT_UNSUP_HOST 2 | |
23 | #define RESULT_UNSUP_CARD 3 | |
24 | ||
2661081f PO |
25 | #define BUFFER_ORDER 2 |
26 | #define BUFFER_SIZE (PAGE_SIZE << BUFFER_ORDER) | |
88ae600d PO |
27 | |
28 | struct mmc_test_card { | |
29 | struct mmc_card *card; | |
30 | ||
6b174931 | 31 | u8 scratch[BUFFER_SIZE]; |
88ae600d | 32 | u8 *buffer; |
2661081f PO |
33 | #ifdef CONFIG_HIGHMEM |
34 | struct page *highmem; | |
35 | #endif | |
88ae600d PO |
36 | }; |
37 | ||
38 | /*******************************************************************/ | |
6b174931 | 39 | /* General helper functions */ |
88ae600d PO |
40 | /*******************************************************************/ |
41 | ||
6b174931 PO |
42 | /* |
43 | * Configure correct block size in card | |
44 | */ | |
88ae600d PO |
45 | static int mmc_test_set_blksize(struct mmc_test_card *test, unsigned size) |
46 | { | |
47 | struct mmc_command cmd; | |
48 | int ret; | |
49 | ||
50 | cmd.opcode = MMC_SET_BLOCKLEN; | |
51 | cmd.arg = size; | |
52 | cmd.flags = MMC_RSP_R1 | MMC_CMD_AC; | |
53 | ret = mmc_wait_for_cmd(test->card->host, &cmd, 0); | |
54 | if (ret) | |
55 | return ret; | |
56 | ||
57 | return 0; | |
58 | } | |
59 | ||
6b174931 PO |
60 | /* |
61 | * Fill in the mmc_request structure given a set of transfer parameters. | |
62 | */ | |
63 | static void mmc_test_prepare_mrq(struct mmc_test_card *test, | |
64 | struct mmc_request *mrq, struct scatterlist *sg, unsigned sg_len, | |
65 | unsigned dev_addr, unsigned blocks, unsigned blksz, int write) | |
88ae600d | 66 | { |
6b174931 | 67 | BUG_ON(!mrq || !mrq->cmd || !mrq->data || !mrq->stop); |
88ae600d | 68 | |
6b174931 PO |
69 | if (blocks > 1) { |
70 | mrq->cmd->opcode = write ? | |
71 | MMC_WRITE_MULTIPLE_BLOCK : MMC_READ_MULTIPLE_BLOCK; | |
88ae600d | 72 | } else { |
6b174931 PO |
73 | mrq->cmd->opcode = write ? |
74 | MMC_WRITE_BLOCK : MMC_READ_SINGLE_BLOCK; | |
88ae600d PO |
75 | } |
76 | ||
6b174931 | 77 | mrq->cmd->arg = dev_addr; |
c286d03c JK |
78 | if (!mmc_card_blockaddr(test->card)) |
79 | mrq->cmd->arg <<= 9; | |
80 | ||
6b174931 | 81 | mrq->cmd->flags = MMC_RSP_R1 | MMC_CMD_ADTC; |
88ae600d | 82 | |
6b174931 PO |
83 | if (blocks == 1) |
84 | mrq->stop = NULL; | |
85 | else { | |
86 | mrq->stop->opcode = MMC_STOP_TRANSMISSION; | |
87 | mrq->stop->arg = 0; | |
88 | mrq->stop->flags = MMC_RSP_R1B | MMC_CMD_AC; | |
88ae600d PO |
89 | } |
90 | ||
6b174931 PO |
91 | mrq->data->blksz = blksz; |
92 | mrq->data->blocks = blocks; | |
93 | mrq->data->flags = write ? MMC_DATA_WRITE : MMC_DATA_READ; | |
94 | mrq->data->sg = sg; | |
95 | mrq->data->sg_len = sg_len; | |
88ae600d | 96 | |
6b174931 PO |
97 | mmc_set_data_timeout(mrq->data, test->card); |
98 | } | |
88ae600d | 99 | |
6b174931 PO |
100 | /* |
101 | * Wait for the card to finish the busy state | |
102 | */ | |
103 | static int mmc_test_wait_busy(struct mmc_test_card *test) | |
104 | { | |
105 | int ret, busy; | |
106 | struct mmc_command cmd; | |
88ae600d PO |
107 | |
108 | busy = 0; | |
109 | do { | |
88ae600d PO |
110 | memset(&cmd, 0, sizeof(struct mmc_command)); |
111 | ||
112 | cmd.opcode = MMC_SEND_STATUS; | |
113 | cmd.arg = test->card->rca << 16; | |
114 | cmd.flags = MMC_RSP_R1 | MMC_CMD_AC; | |
115 | ||
6b174931 PO |
116 | ret = mmc_wait_for_cmd(test->card->host, &cmd, 0); |
117 | if (ret) | |
88ae600d PO |
118 | break; |
119 | ||
120 | if (!busy && !(cmd.resp[0] & R1_READY_FOR_DATA)) { | |
121 | busy = 1; | |
122 | printk(KERN_INFO "%s: Warning: Host did not " | |
123 | "wait for busy state to end.\n", | |
124 | mmc_hostname(test->card->host)); | |
125 | } | |
126 | } while (!(cmd.resp[0] & R1_READY_FOR_DATA)); | |
127 | ||
128 | return ret; | |
129 | } | |
130 | ||
6b174931 PO |
131 | /* |
132 | * Transfer a single sector of kernel addressable data | |
133 | */ | |
134 | static int mmc_test_buffer_transfer(struct mmc_test_card *test, | |
135 | u8 *buffer, unsigned addr, unsigned blksz, int write) | |
88ae600d | 136 | { |
6b174931 PO |
137 | int ret; |
138 | ||
139 | struct mmc_request mrq; | |
140 | struct mmc_command cmd; | |
141 | struct mmc_command stop; | |
142 | struct mmc_data data; | |
143 | ||
144 | struct scatterlist sg; | |
145 | ||
146 | memset(&mrq, 0, sizeof(struct mmc_request)); | |
147 | memset(&cmd, 0, sizeof(struct mmc_command)); | |
148 | memset(&data, 0, sizeof(struct mmc_data)); | |
149 | memset(&stop, 0, sizeof(struct mmc_command)); | |
150 | ||
151 | mrq.cmd = &cmd; | |
152 | mrq.data = &data; | |
153 | mrq.stop = &stop; | |
154 | ||
155 | sg_init_one(&sg, buffer, blksz); | |
156 | ||
157 | mmc_test_prepare_mrq(test, &mrq, &sg, 1, addr, 1, blksz, write); | |
158 | ||
159 | mmc_wait_for_req(test->card->host, &mrq); | |
160 | ||
161 | if (cmd.error) | |
162 | return cmd.error; | |
163 | if (data.error) | |
164 | return data.error; | |
165 | ||
166 | ret = mmc_test_wait_busy(test); | |
167 | if (ret) | |
168 | return ret; | |
169 | ||
170 | return 0; | |
88ae600d PO |
171 | } |
172 | ||
6b174931 PO |
173 | /*******************************************************************/ |
174 | /* Test preparation and cleanup */ | |
175 | /*******************************************************************/ | |
176 | ||
177 | /* | |
178 | * Fill the first couple of sectors of the card with known data | |
179 | * so that bad reads/writes can be detected | |
180 | */ | |
181 | static int __mmc_test_prepare(struct mmc_test_card *test, int write) | |
88ae600d PO |
182 | { |
183 | int ret, i; | |
184 | ||
185 | ret = mmc_test_set_blksize(test, 512); | |
186 | if (ret) | |
187 | return ret; | |
188 | ||
189 | if (write) | |
6b174931 | 190 | memset(test->buffer, 0xDF, 512); |
88ae600d | 191 | else { |
6b174931 | 192 | for (i = 0;i < 512;i++) |
88ae600d PO |
193 | test->buffer[i] = i; |
194 | } | |
195 | ||
196 | for (i = 0;i < BUFFER_SIZE / 512;i++) { | |
c286d03c | 197 | ret = mmc_test_buffer_transfer(test, test->buffer, i, 512, 1); |
88ae600d PO |
198 | if (ret) |
199 | return ret; | |
200 | } | |
201 | ||
202 | return 0; | |
203 | } | |
204 | ||
6b174931 PO |
205 | static int mmc_test_prepare_write(struct mmc_test_card *test) |
206 | { | |
207 | return __mmc_test_prepare(test, 1); | |
208 | } | |
209 | ||
210 | static int mmc_test_prepare_read(struct mmc_test_card *test) | |
211 | { | |
212 | return __mmc_test_prepare(test, 0); | |
213 | } | |
214 | ||
215 | static int mmc_test_cleanup(struct mmc_test_card *test) | |
216 | { | |
217 | int ret, i; | |
218 | ||
219 | ret = mmc_test_set_blksize(test, 512); | |
220 | if (ret) | |
221 | return ret; | |
222 | ||
223 | memset(test->buffer, 0, 512); | |
224 | ||
225 | for (i = 0;i < BUFFER_SIZE / 512;i++) { | |
c286d03c | 226 | ret = mmc_test_buffer_transfer(test, test->buffer, i, 512, 1); |
6b174931 PO |
227 | if (ret) |
228 | return ret; | |
229 | } | |
230 | ||
231 | return 0; | |
232 | } | |
233 | ||
234 | /*******************************************************************/ | |
235 | /* Test execution helpers */ | |
236 | /*******************************************************************/ | |
237 | ||
238 | /* | |
239 | * Modifies the mmc_request to perform the "short transfer" tests | |
240 | */ | |
241 | static void mmc_test_prepare_broken_mrq(struct mmc_test_card *test, | |
242 | struct mmc_request *mrq, int write) | |
243 | { | |
244 | BUG_ON(!mrq || !mrq->cmd || !mrq->data); | |
245 | ||
246 | if (mrq->data->blocks > 1) { | |
247 | mrq->cmd->opcode = write ? | |
248 | MMC_WRITE_BLOCK : MMC_READ_SINGLE_BLOCK; | |
249 | mrq->stop = NULL; | |
250 | } else { | |
251 | mrq->cmd->opcode = MMC_SEND_STATUS; | |
252 | mrq->cmd->arg = test->card->rca << 16; | |
253 | } | |
254 | } | |
255 | ||
256 | /* | |
257 | * Checks that a normal transfer didn't have any errors | |
258 | */ | |
259 | static int mmc_test_check_result(struct mmc_test_card *test, | |
260 | struct mmc_request *mrq) | |
88ae600d | 261 | { |
6b174931 PO |
262 | int ret; |
263 | ||
264 | BUG_ON(!mrq || !mrq->cmd || !mrq->data); | |
265 | ||
266 | ret = 0; | |
267 | ||
268 | if (!ret && mrq->cmd->error) | |
269 | ret = mrq->cmd->error; | |
270 | if (!ret && mrq->data->error) | |
271 | ret = mrq->data->error; | |
272 | if (!ret && mrq->stop && mrq->stop->error) | |
273 | ret = mrq->stop->error; | |
274 | if (!ret && mrq->data->bytes_xfered != | |
275 | mrq->data->blocks * mrq->data->blksz) | |
276 | ret = RESULT_FAIL; | |
277 | ||
278 | if (ret == -EINVAL) | |
279 | ret = RESULT_UNSUP_HOST; | |
280 | ||
281 | return ret; | |
88ae600d PO |
282 | } |
283 | ||
6b174931 PO |
284 | /* |
285 | * Checks that a "short transfer" behaved as expected | |
286 | */ | |
287 | static int mmc_test_check_broken_result(struct mmc_test_card *test, | |
288 | struct mmc_request *mrq) | |
88ae600d | 289 | { |
6b174931 PO |
290 | int ret; |
291 | ||
292 | BUG_ON(!mrq || !mrq->cmd || !mrq->data); | |
293 | ||
294 | ret = 0; | |
295 | ||
296 | if (!ret && mrq->cmd->error) | |
297 | ret = mrq->cmd->error; | |
298 | if (!ret && mrq->data->error == 0) | |
299 | ret = RESULT_FAIL; | |
300 | if (!ret && mrq->data->error != -ETIMEDOUT) | |
301 | ret = mrq->data->error; | |
302 | if (!ret && mrq->stop && mrq->stop->error) | |
303 | ret = mrq->stop->error; | |
304 | if (mrq->data->blocks > 1) { | |
305 | if (!ret && mrq->data->bytes_xfered > mrq->data->blksz) | |
306 | ret = RESULT_FAIL; | |
307 | } else { | |
308 | if (!ret && mrq->data->bytes_xfered > 0) | |
309 | ret = RESULT_FAIL; | |
310 | } | |
311 | ||
312 | if (ret == -EINVAL) | |
313 | ret = RESULT_UNSUP_HOST; | |
314 | ||
315 | return ret; | |
88ae600d PO |
316 | } |
317 | ||
6b174931 PO |
318 | /* |
319 | * Tests a basic transfer with certain parameters | |
320 | */ | |
321 | static int mmc_test_simple_transfer(struct mmc_test_card *test, | |
322 | struct scatterlist *sg, unsigned sg_len, unsigned dev_addr, | |
323 | unsigned blocks, unsigned blksz, int write) | |
88ae600d | 324 | { |
6b174931 PO |
325 | struct mmc_request mrq; |
326 | struct mmc_command cmd; | |
327 | struct mmc_command stop; | |
328 | struct mmc_data data; | |
88ae600d | 329 | |
6b174931 PO |
330 | memset(&mrq, 0, sizeof(struct mmc_request)); |
331 | memset(&cmd, 0, sizeof(struct mmc_command)); | |
332 | memset(&data, 0, sizeof(struct mmc_data)); | |
333 | memset(&stop, 0, sizeof(struct mmc_command)); | |
334 | ||
335 | mrq.cmd = &cmd; | |
336 | mrq.data = &data; | |
337 | mrq.stop = &stop; | |
338 | ||
339 | mmc_test_prepare_mrq(test, &mrq, sg, sg_len, dev_addr, | |
340 | blocks, blksz, write); | |
341 | ||
342 | mmc_wait_for_req(test->card->host, &mrq); | |
88ae600d | 343 | |
6b174931 PO |
344 | mmc_test_wait_busy(test); |
345 | ||
346 | return mmc_test_check_result(test, &mrq); | |
347 | } | |
348 | ||
349 | /* | |
350 | * Tests a transfer where the card will fail completely or partly | |
351 | */ | |
352 | static int mmc_test_broken_transfer(struct mmc_test_card *test, | |
353 | unsigned blocks, unsigned blksz, int write) | |
354 | { | |
355 | struct mmc_request mrq; | |
356 | struct mmc_command cmd; | |
357 | struct mmc_command stop; | |
358 | struct mmc_data data; | |
359 | ||
360 | struct scatterlist sg; | |
361 | ||
362 | memset(&mrq, 0, sizeof(struct mmc_request)); | |
363 | memset(&cmd, 0, sizeof(struct mmc_command)); | |
364 | memset(&data, 0, sizeof(struct mmc_data)); | |
365 | memset(&stop, 0, sizeof(struct mmc_command)); | |
366 | ||
367 | mrq.cmd = &cmd; | |
368 | mrq.data = &data; | |
369 | mrq.stop = &stop; | |
370 | ||
371 | sg_init_one(&sg, test->buffer, blocks * blksz); | |
372 | ||
373 | mmc_test_prepare_mrq(test, &mrq, &sg, 1, 0, blocks, blksz, write); | |
374 | mmc_test_prepare_broken_mrq(test, &mrq, write); | |
375 | ||
376 | mmc_wait_for_req(test->card->host, &mrq); | |
377 | ||
378 | mmc_test_wait_busy(test); | |
379 | ||
380 | return mmc_test_check_broken_result(test, &mrq); | |
381 | } | |
382 | ||
383 | /* | |
384 | * Does a complete transfer test where data is also validated | |
385 | * | |
386 | * Note: mmc_test_prepare() must have been done before this call | |
387 | */ | |
388 | static int mmc_test_transfer(struct mmc_test_card *test, | |
389 | struct scatterlist *sg, unsigned sg_len, unsigned dev_addr, | |
390 | unsigned blocks, unsigned blksz, int write) | |
391 | { | |
392 | int ret, i; | |
393 | unsigned long flags; | |
88ae600d PO |
394 | |
395 | if (write) { | |
396 | for (i = 0;i < blocks * blksz;i++) | |
6b174931 PO |
397 | test->scratch[i] = i; |
398 | } else { | |
b7ac2cf1 | 399 | memset(test->scratch, 0, BUFFER_SIZE); |
88ae600d | 400 | } |
6b174931 | 401 | local_irq_save(flags); |
b7ac2cf1 | 402 | sg_copy_from_buffer(sg, sg_len, test->scratch, BUFFER_SIZE); |
6b174931 | 403 | local_irq_restore(flags); |
88ae600d PO |
404 | |
405 | ret = mmc_test_set_blksize(test, blksz); | |
406 | if (ret) | |
407 | return ret; | |
408 | ||
6b174931 PO |
409 | ret = mmc_test_simple_transfer(test, sg, sg_len, dev_addr, |
410 | blocks, blksz, write); | |
88ae600d PO |
411 | if (ret) |
412 | return ret; | |
413 | ||
414 | if (write) { | |
6b174931 PO |
415 | int sectors; |
416 | ||
88ae600d PO |
417 | ret = mmc_test_set_blksize(test, 512); |
418 | if (ret) | |
419 | return ret; | |
420 | ||
421 | sectors = (blocks * blksz + 511) / 512; | |
422 | if ((sectors * 512) == (blocks * blksz)) | |
423 | sectors++; | |
424 | ||
425 | if ((sectors * 512) > BUFFER_SIZE) | |
426 | return -EINVAL; | |
427 | ||
428 | memset(test->buffer, 0, sectors * 512); | |
429 | ||
430 | for (i = 0;i < sectors;i++) { | |
6b174931 | 431 | ret = mmc_test_buffer_transfer(test, |
88ae600d | 432 | test->buffer + i * 512, |
c286d03c | 433 | dev_addr + i, 512, 0); |
88ae600d PO |
434 | if (ret) |
435 | return ret; | |
436 | } | |
437 | ||
438 | for (i = 0;i < blocks * blksz;i++) { | |
439 | if (test->buffer[i] != (u8)i) | |
440 | return RESULT_FAIL; | |
441 | } | |
442 | ||
443 | for (;i < sectors * 512;i++) { | |
444 | if (test->buffer[i] != 0xDF) | |
445 | return RESULT_FAIL; | |
446 | } | |
447 | } else { | |
6b174931 | 448 | local_irq_save(flags); |
b7ac2cf1 | 449 | sg_copy_to_buffer(sg, sg_len, test->scratch, BUFFER_SIZE); |
6b174931 | 450 | local_irq_restore(flags); |
88ae600d | 451 | for (i = 0;i < blocks * blksz;i++) { |
6b174931 | 452 | if (test->scratch[i] != (u8)i) |
88ae600d PO |
453 | return RESULT_FAIL; |
454 | } | |
455 | } | |
456 | ||
457 | return 0; | |
458 | } | |
459 | ||
88ae600d PO |
460 | /*******************************************************************/ |
461 | /* Tests */ | |
462 | /*******************************************************************/ | |
463 | ||
464 | struct mmc_test_case { | |
465 | const char *name; | |
466 | ||
467 | int (*prepare)(struct mmc_test_card *); | |
468 | int (*run)(struct mmc_test_card *); | |
469 | int (*cleanup)(struct mmc_test_card *); | |
470 | }; | |
471 | ||
472 | static int mmc_test_basic_write(struct mmc_test_card *test) | |
473 | { | |
474 | int ret; | |
6b174931 | 475 | struct scatterlist sg; |
88ae600d PO |
476 | |
477 | ret = mmc_test_set_blksize(test, 512); | |
478 | if (ret) | |
479 | return ret; | |
480 | ||
6b174931 PO |
481 | sg_init_one(&sg, test->buffer, 512); |
482 | ||
483 | ret = mmc_test_simple_transfer(test, &sg, 1, 0, 1, 512, 1); | |
88ae600d PO |
484 | if (ret) |
485 | return ret; | |
486 | ||
487 | return 0; | |
488 | } | |
489 | ||
490 | static int mmc_test_basic_read(struct mmc_test_card *test) | |
491 | { | |
492 | int ret; | |
6b174931 | 493 | struct scatterlist sg; |
88ae600d PO |
494 | |
495 | ret = mmc_test_set_blksize(test, 512); | |
496 | if (ret) | |
497 | return ret; | |
498 | ||
6b174931 PO |
499 | sg_init_one(&sg, test->buffer, 512); |
500 | ||
58a5dd3e | 501 | ret = mmc_test_simple_transfer(test, &sg, 1, 0, 1, 512, 0); |
88ae600d PO |
502 | if (ret) |
503 | return ret; | |
504 | ||
505 | return 0; | |
506 | } | |
507 | ||
508 | static int mmc_test_verify_write(struct mmc_test_card *test) | |
509 | { | |
510 | int ret; | |
6b174931 PO |
511 | struct scatterlist sg; |
512 | ||
513 | sg_init_one(&sg, test->buffer, 512); | |
88ae600d | 514 | |
6b174931 | 515 | ret = mmc_test_transfer(test, &sg, 1, 0, 1, 512, 1); |
88ae600d PO |
516 | if (ret) |
517 | return ret; | |
518 | ||
519 | return 0; | |
520 | } | |
521 | ||
522 | static int mmc_test_verify_read(struct mmc_test_card *test) | |
523 | { | |
524 | int ret; | |
6b174931 PO |
525 | struct scatterlist sg; |
526 | ||
527 | sg_init_one(&sg, test->buffer, 512); | |
88ae600d | 528 | |
6b174931 | 529 | ret = mmc_test_transfer(test, &sg, 1, 0, 1, 512, 0); |
88ae600d PO |
530 | if (ret) |
531 | return ret; | |
532 | ||
533 | return 0; | |
534 | } | |
535 | ||
536 | static int mmc_test_multi_write(struct mmc_test_card *test) | |
537 | { | |
538 | int ret; | |
539 | unsigned int size; | |
6b174931 | 540 | struct scatterlist sg; |
88ae600d PO |
541 | |
542 | if (test->card->host->max_blk_count == 1) | |
543 | return RESULT_UNSUP_HOST; | |
544 | ||
545 | size = PAGE_SIZE * 2; | |
546 | size = min(size, test->card->host->max_req_size); | |
547 | size = min(size, test->card->host->max_seg_size); | |
548 | size = min(size, test->card->host->max_blk_count * 512); | |
549 | ||
550 | if (size < 1024) | |
551 | return RESULT_UNSUP_HOST; | |
552 | ||
6b174931 PO |
553 | sg_init_one(&sg, test->buffer, size); |
554 | ||
555 | ret = mmc_test_transfer(test, &sg, 1, 0, size/512, 512, 1); | |
88ae600d PO |
556 | if (ret) |
557 | return ret; | |
558 | ||
559 | return 0; | |
560 | } | |
561 | ||
562 | static int mmc_test_multi_read(struct mmc_test_card *test) | |
563 | { | |
564 | int ret; | |
565 | unsigned int size; | |
6b174931 | 566 | struct scatterlist sg; |
88ae600d PO |
567 | |
568 | if (test->card->host->max_blk_count == 1) | |
569 | return RESULT_UNSUP_HOST; | |
570 | ||
571 | size = PAGE_SIZE * 2; | |
572 | size = min(size, test->card->host->max_req_size); | |
573 | size = min(size, test->card->host->max_seg_size); | |
574 | size = min(size, test->card->host->max_blk_count * 512); | |
575 | ||
576 | if (size < 1024) | |
577 | return RESULT_UNSUP_HOST; | |
578 | ||
6b174931 PO |
579 | sg_init_one(&sg, test->buffer, size); |
580 | ||
581 | ret = mmc_test_transfer(test, &sg, 1, 0, size/512, 512, 0); | |
88ae600d PO |
582 | if (ret) |
583 | return ret; | |
584 | ||
585 | return 0; | |
586 | } | |
587 | ||
588 | static int mmc_test_pow2_write(struct mmc_test_card *test) | |
589 | { | |
590 | int ret, i; | |
6b174931 | 591 | struct scatterlist sg; |
88ae600d PO |
592 | |
593 | if (!test->card->csd.write_partial) | |
594 | return RESULT_UNSUP_CARD; | |
595 | ||
596 | for (i = 1; i < 512;i <<= 1) { | |
6b174931 PO |
597 | sg_init_one(&sg, test->buffer, i); |
598 | ret = mmc_test_transfer(test, &sg, 1, 0, 1, i, 1); | |
88ae600d PO |
599 | if (ret) |
600 | return ret; | |
601 | } | |
602 | ||
603 | return 0; | |
604 | } | |
605 | ||
606 | static int mmc_test_pow2_read(struct mmc_test_card *test) | |
607 | { | |
608 | int ret, i; | |
6b174931 | 609 | struct scatterlist sg; |
88ae600d PO |
610 | |
611 | if (!test->card->csd.read_partial) | |
612 | return RESULT_UNSUP_CARD; | |
613 | ||
614 | for (i = 1; i < 512;i <<= 1) { | |
6b174931 PO |
615 | sg_init_one(&sg, test->buffer, i); |
616 | ret = mmc_test_transfer(test, &sg, 1, 0, 1, i, 0); | |
88ae600d PO |
617 | if (ret) |
618 | return ret; | |
619 | } | |
620 | ||
621 | return 0; | |
622 | } | |
623 | ||
624 | static int mmc_test_weird_write(struct mmc_test_card *test) | |
625 | { | |
626 | int ret, i; | |
6b174931 | 627 | struct scatterlist sg; |
88ae600d PO |
628 | |
629 | if (!test->card->csd.write_partial) | |
630 | return RESULT_UNSUP_CARD; | |
631 | ||
632 | for (i = 3; i < 512;i += 7) { | |
6b174931 PO |
633 | sg_init_one(&sg, test->buffer, i); |
634 | ret = mmc_test_transfer(test, &sg, 1, 0, 1, i, 1); | |
88ae600d PO |
635 | if (ret) |
636 | return ret; | |
637 | } | |
638 | ||
639 | return 0; | |
640 | } | |
641 | ||
642 | static int mmc_test_weird_read(struct mmc_test_card *test) | |
643 | { | |
644 | int ret, i; | |
6b174931 | 645 | struct scatterlist sg; |
88ae600d PO |
646 | |
647 | if (!test->card->csd.read_partial) | |
648 | return RESULT_UNSUP_CARD; | |
649 | ||
650 | for (i = 3; i < 512;i += 7) { | |
6b174931 PO |
651 | sg_init_one(&sg, test->buffer, i); |
652 | ret = mmc_test_transfer(test, &sg, 1, 0, 1, i, 0); | |
88ae600d PO |
653 | if (ret) |
654 | return ret; | |
655 | } | |
656 | ||
657 | return 0; | |
658 | } | |
659 | ||
660 | static int mmc_test_align_write(struct mmc_test_card *test) | |
661 | { | |
662 | int ret, i; | |
6b174931 | 663 | struct scatterlist sg; |
88ae600d PO |
664 | |
665 | for (i = 1;i < 4;i++) { | |
6b174931 PO |
666 | sg_init_one(&sg, test->buffer + i, 512); |
667 | ret = mmc_test_transfer(test, &sg, 1, 0, 1, 512, 1); | |
88ae600d PO |
668 | if (ret) |
669 | return ret; | |
670 | } | |
671 | ||
672 | return 0; | |
673 | } | |
674 | ||
675 | static int mmc_test_align_read(struct mmc_test_card *test) | |
676 | { | |
677 | int ret, i; | |
6b174931 | 678 | struct scatterlist sg; |
88ae600d PO |
679 | |
680 | for (i = 1;i < 4;i++) { | |
6b174931 PO |
681 | sg_init_one(&sg, test->buffer + i, 512); |
682 | ret = mmc_test_transfer(test, &sg, 1, 0, 1, 512, 0); | |
88ae600d PO |
683 | if (ret) |
684 | return ret; | |
685 | } | |
686 | ||
687 | return 0; | |
688 | } | |
689 | ||
690 | static int mmc_test_align_multi_write(struct mmc_test_card *test) | |
691 | { | |
692 | int ret, i; | |
693 | unsigned int size; | |
6b174931 | 694 | struct scatterlist sg; |
88ae600d PO |
695 | |
696 | if (test->card->host->max_blk_count == 1) | |
697 | return RESULT_UNSUP_HOST; | |
698 | ||
699 | size = PAGE_SIZE * 2; | |
700 | size = min(size, test->card->host->max_req_size); | |
701 | size = min(size, test->card->host->max_seg_size); | |
702 | size = min(size, test->card->host->max_blk_count * 512); | |
703 | ||
704 | if (size < 1024) | |
705 | return RESULT_UNSUP_HOST; | |
706 | ||
707 | for (i = 1;i < 4;i++) { | |
6b174931 PO |
708 | sg_init_one(&sg, test->buffer + i, size); |
709 | ret = mmc_test_transfer(test, &sg, 1, 0, size/512, 512, 1); | |
88ae600d PO |
710 | if (ret) |
711 | return ret; | |
712 | } | |
713 | ||
714 | return 0; | |
715 | } | |
716 | ||
717 | static int mmc_test_align_multi_read(struct mmc_test_card *test) | |
718 | { | |
719 | int ret, i; | |
720 | unsigned int size; | |
6b174931 | 721 | struct scatterlist sg; |
88ae600d PO |
722 | |
723 | if (test->card->host->max_blk_count == 1) | |
724 | return RESULT_UNSUP_HOST; | |
725 | ||
726 | size = PAGE_SIZE * 2; | |
727 | size = min(size, test->card->host->max_req_size); | |
728 | size = min(size, test->card->host->max_seg_size); | |
729 | size = min(size, test->card->host->max_blk_count * 512); | |
730 | ||
731 | if (size < 1024) | |
732 | return RESULT_UNSUP_HOST; | |
733 | ||
734 | for (i = 1;i < 4;i++) { | |
6b174931 PO |
735 | sg_init_one(&sg, test->buffer + i, size); |
736 | ret = mmc_test_transfer(test, &sg, 1, 0, size/512, 512, 0); | |
88ae600d PO |
737 | if (ret) |
738 | return ret; | |
739 | } | |
740 | ||
741 | return 0; | |
742 | } | |
743 | ||
744 | static int mmc_test_xfersize_write(struct mmc_test_card *test) | |
745 | { | |
746 | int ret; | |
747 | ||
748 | ret = mmc_test_set_blksize(test, 512); | |
749 | if (ret) | |
750 | return ret; | |
751 | ||
6b174931 | 752 | ret = mmc_test_broken_transfer(test, 1, 512, 1); |
88ae600d PO |
753 | if (ret) |
754 | return ret; | |
755 | ||
756 | return 0; | |
757 | } | |
758 | ||
759 | static int mmc_test_xfersize_read(struct mmc_test_card *test) | |
760 | { | |
761 | int ret; | |
762 | ||
763 | ret = mmc_test_set_blksize(test, 512); | |
764 | if (ret) | |
765 | return ret; | |
766 | ||
6b174931 | 767 | ret = mmc_test_broken_transfer(test, 1, 512, 0); |
88ae600d PO |
768 | if (ret) |
769 | return ret; | |
770 | ||
771 | return 0; | |
772 | } | |
773 | ||
774 | static int mmc_test_multi_xfersize_write(struct mmc_test_card *test) | |
775 | { | |
776 | int ret; | |
777 | ||
778 | if (test->card->host->max_blk_count == 1) | |
779 | return RESULT_UNSUP_HOST; | |
780 | ||
781 | ret = mmc_test_set_blksize(test, 512); | |
782 | if (ret) | |
783 | return ret; | |
784 | ||
6b174931 | 785 | ret = mmc_test_broken_transfer(test, 2, 512, 1); |
88ae600d PO |
786 | if (ret) |
787 | return ret; | |
788 | ||
789 | return 0; | |
790 | } | |
791 | ||
792 | static int mmc_test_multi_xfersize_read(struct mmc_test_card *test) | |
793 | { | |
794 | int ret; | |
795 | ||
796 | if (test->card->host->max_blk_count == 1) | |
797 | return RESULT_UNSUP_HOST; | |
798 | ||
799 | ret = mmc_test_set_blksize(test, 512); | |
800 | if (ret) | |
801 | return ret; | |
802 | ||
6b174931 | 803 | ret = mmc_test_broken_transfer(test, 2, 512, 0); |
88ae600d PO |
804 | if (ret) |
805 | return ret; | |
806 | ||
807 | return 0; | |
808 | } | |
809 | ||
2661081f PO |
810 | #ifdef CONFIG_HIGHMEM |
811 | ||
812 | static int mmc_test_write_high(struct mmc_test_card *test) | |
813 | { | |
814 | int ret; | |
815 | struct scatterlist sg; | |
816 | ||
817 | sg_init_table(&sg, 1); | |
818 | sg_set_page(&sg, test->highmem, 512, 0); | |
819 | ||
820 | ret = mmc_test_transfer(test, &sg, 1, 0, 1, 512, 1); | |
821 | if (ret) | |
822 | return ret; | |
823 | ||
824 | return 0; | |
825 | } | |
826 | ||
827 | static int mmc_test_read_high(struct mmc_test_card *test) | |
828 | { | |
829 | int ret; | |
830 | struct scatterlist sg; | |
831 | ||
832 | sg_init_table(&sg, 1); | |
833 | sg_set_page(&sg, test->highmem, 512, 0); | |
834 | ||
835 | ret = mmc_test_transfer(test, &sg, 1, 0, 1, 512, 0); | |
836 | if (ret) | |
837 | return ret; | |
838 | ||
839 | return 0; | |
840 | } | |
841 | ||
842 | static int mmc_test_multi_write_high(struct mmc_test_card *test) | |
843 | { | |
844 | int ret; | |
845 | unsigned int size; | |
846 | struct scatterlist sg; | |
847 | ||
848 | if (test->card->host->max_blk_count == 1) | |
849 | return RESULT_UNSUP_HOST; | |
850 | ||
851 | size = PAGE_SIZE * 2; | |
852 | size = min(size, test->card->host->max_req_size); | |
853 | size = min(size, test->card->host->max_seg_size); | |
854 | size = min(size, test->card->host->max_blk_count * 512); | |
855 | ||
856 | if (size < 1024) | |
857 | return RESULT_UNSUP_HOST; | |
858 | ||
859 | sg_init_table(&sg, 1); | |
860 | sg_set_page(&sg, test->highmem, size, 0); | |
861 | ||
862 | ret = mmc_test_transfer(test, &sg, 1, 0, size/512, 512, 1); | |
863 | if (ret) | |
864 | return ret; | |
865 | ||
866 | return 0; | |
867 | } | |
868 | ||
869 | static int mmc_test_multi_read_high(struct mmc_test_card *test) | |
870 | { | |
871 | int ret; | |
872 | unsigned int size; | |
873 | struct scatterlist sg; | |
874 | ||
875 | if (test->card->host->max_blk_count == 1) | |
876 | return RESULT_UNSUP_HOST; | |
877 | ||
878 | size = PAGE_SIZE * 2; | |
879 | size = min(size, test->card->host->max_req_size); | |
880 | size = min(size, test->card->host->max_seg_size); | |
881 | size = min(size, test->card->host->max_blk_count * 512); | |
882 | ||
883 | if (size < 1024) | |
884 | return RESULT_UNSUP_HOST; | |
885 | ||
886 | sg_init_table(&sg, 1); | |
887 | sg_set_page(&sg, test->highmem, size, 0); | |
888 | ||
889 | ret = mmc_test_transfer(test, &sg, 1, 0, size/512, 512, 0); | |
890 | if (ret) | |
891 | return ret; | |
892 | ||
893 | return 0; | |
894 | } | |
895 | ||
896 | #endif /* CONFIG_HIGHMEM */ | |
897 | ||
88ae600d PO |
898 | static const struct mmc_test_case mmc_test_cases[] = { |
899 | { | |
900 | .name = "Basic write (no data verification)", | |
901 | .run = mmc_test_basic_write, | |
902 | }, | |
903 | ||
904 | { | |
905 | .name = "Basic read (no data verification)", | |
906 | .run = mmc_test_basic_read, | |
907 | }, | |
908 | ||
909 | { | |
910 | .name = "Basic write (with data verification)", | |
6b174931 | 911 | .prepare = mmc_test_prepare_write, |
88ae600d | 912 | .run = mmc_test_verify_write, |
6b174931 | 913 | .cleanup = mmc_test_cleanup, |
88ae600d PO |
914 | }, |
915 | ||
916 | { | |
917 | .name = "Basic read (with data verification)", | |
6b174931 | 918 | .prepare = mmc_test_prepare_read, |
88ae600d | 919 | .run = mmc_test_verify_read, |
6b174931 | 920 | .cleanup = mmc_test_cleanup, |
88ae600d PO |
921 | }, |
922 | ||
923 | { | |
924 | .name = "Multi-block write", | |
6b174931 | 925 | .prepare = mmc_test_prepare_write, |
88ae600d | 926 | .run = mmc_test_multi_write, |
6b174931 | 927 | .cleanup = mmc_test_cleanup, |
88ae600d PO |
928 | }, |
929 | ||
930 | { | |
931 | .name = "Multi-block read", | |
6b174931 | 932 | .prepare = mmc_test_prepare_read, |
88ae600d | 933 | .run = mmc_test_multi_read, |
6b174931 | 934 | .cleanup = mmc_test_cleanup, |
88ae600d PO |
935 | }, |
936 | ||
937 | { | |
938 | .name = "Power of two block writes", | |
6b174931 | 939 | .prepare = mmc_test_prepare_write, |
88ae600d | 940 | .run = mmc_test_pow2_write, |
6b174931 | 941 | .cleanup = mmc_test_cleanup, |
88ae600d PO |
942 | }, |
943 | ||
944 | { | |
945 | .name = "Power of two block reads", | |
6b174931 | 946 | .prepare = mmc_test_prepare_read, |
88ae600d | 947 | .run = mmc_test_pow2_read, |
6b174931 | 948 | .cleanup = mmc_test_cleanup, |
88ae600d PO |
949 | }, |
950 | ||
951 | { | |
952 | .name = "Weird sized block writes", | |
6b174931 | 953 | .prepare = mmc_test_prepare_write, |
88ae600d | 954 | .run = mmc_test_weird_write, |
6b174931 | 955 | .cleanup = mmc_test_cleanup, |
88ae600d PO |
956 | }, |
957 | ||
958 | { | |
959 | .name = "Weird sized block reads", | |
6b174931 | 960 | .prepare = mmc_test_prepare_read, |
88ae600d | 961 | .run = mmc_test_weird_read, |
6b174931 | 962 | .cleanup = mmc_test_cleanup, |
88ae600d PO |
963 | }, |
964 | ||
965 | { | |
966 | .name = "Badly aligned write", | |
6b174931 | 967 | .prepare = mmc_test_prepare_write, |
88ae600d | 968 | .run = mmc_test_align_write, |
6b174931 | 969 | .cleanup = mmc_test_cleanup, |
88ae600d PO |
970 | }, |
971 | ||
972 | { | |
973 | .name = "Badly aligned read", | |
6b174931 | 974 | .prepare = mmc_test_prepare_read, |
88ae600d | 975 | .run = mmc_test_align_read, |
6b174931 | 976 | .cleanup = mmc_test_cleanup, |
88ae600d PO |
977 | }, |
978 | ||
979 | { | |
980 | .name = "Badly aligned multi-block write", | |
6b174931 | 981 | .prepare = mmc_test_prepare_write, |
88ae600d | 982 | .run = mmc_test_align_multi_write, |
6b174931 | 983 | .cleanup = mmc_test_cleanup, |
88ae600d PO |
984 | }, |
985 | ||
986 | { | |
987 | .name = "Badly aligned multi-block read", | |
6b174931 | 988 | .prepare = mmc_test_prepare_read, |
88ae600d | 989 | .run = mmc_test_align_multi_read, |
6b174931 | 990 | .cleanup = mmc_test_cleanup, |
88ae600d PO |
991 | }, |
992 | ||
993 | { | |
994 | .name = "Correct xfer_size at write (start failure)", | |
995 | .run = mmc_test_xfersize_write, | |
996 | }, | |
997 | ||
998 | { | |
999 | .name = "Correct xfer_size at read (start failure)", | |
1000 | .run = mmc_test_xfersize_read, | |
1001 | }, | |
1002 | ||
1003 | { | |
1004 | .name = "Correct xfer_size at write (midway failure)", | |
1005 | .run = mmc_test_multi_xfersize_write, | |
1006 | }, | |
1007 | ||
1008 | { | |
1009 | .name = "Correct xfer_size at read (midway failure)", | |
1010 | .run = mmc_test_multi_xfersize_read, | |
1011 | }, | |
2661081f PO |
1012 | |
1013 | #ifdef CONFIG_HIGHMEM | |
1014 | ||
1015 | { | |
1016 | .name = "Highmem write", | |
1017 | .prepare = mmc_test_prepare_write, | |
1018 | .run = mmc_test_write_high, | |
1019 | .cleanup = mmc_test_cleanup, | |
1020 | }, | |
1021 | ||
1022 | { | |
1023 | .name = "Highmem read", | |
1024 | .prepare = mmc_test_prepare_read, | |
1025 | .run = mmc_test_read_high, | |
1026 | .cleanup = mmc_test_cleanup, | |
1027 | }, | |
1028 | ||
1029 | { | |
1030 | .name = "Multi-block highmem write", | |
1031 | .prepare = mmc_test_prepare_write, | |
1032 | .run = mmc_test_multi_write_high, | |
1033 | .cleanup = mmc_test_cleanup, | |
1034 | }, | |
1035 | ||
1036 | { | |
1037 | .name = "Multi-block highmem read", | |
1038 | .prepare = mmc_test_prepare_read, | |
1039 | .run = mmc_test_multi_read_high, | |
1040 | .cleanup = mmc_test_cleanup, | |
1041 | }, | |
1042 | ||
1043 | #endif /* CONFIG_HIGHMEM */ | |
1044 | ||
88ae600d PO |
1045 | }; |
1046 | ||
a650031a | 1047 | static DEFINE_MUTEX(mmc_test_lock); |
88ae600d | 1048 | |
fd8c326c | 1049 | static void mmc_test_run(struct mmc_test_card *test, int testcase) |
88ae600d PO |
1050 | { |
1051 | int i, ret; | |
1052 | ||
1053 | printk(KERN_INFO "%s: Starting tests of card %s...\n", | |
1054 | mmc_hostname(test->card->host), mmc_card_id(test->card)); | |
1055 | ||
1056 | mmc_claim_host(test->card->host); | |
1057 | ||
1058 | for (i = 0;i < ARRAY_SIZE(mmc_test_cases);i++) { | |
fd8c326c PO |
1059 | if (testcase && ((i + 1) != testcase)) |
1060 | continue; | |
1061 | ||
88ae600d PO |
1062 | printk(KERN_INFO "%s: Test case %d. %s...\n", |
1063 | mmc_hostname(test->card->host), i + 1, | |
1064 | mmc_test_cases[i].name); | |
1065 | ||
1066 | if (mmc_test_cases[i].prepare) { | |
1067 | ret = mmc_test_cases[i].prepare(test); | |
1068 | if (ret) { | |
1069 | printk(KERN_INFO "%s: Result: Prepare " | |
1070 | "stage failed! (%d)\n", | |
1071 | mmc_hostname(test->card->host), | |
1072 | ret); | |
1073 | continue; | |
1074 | } | |
1075 | } | |
1076 | ||
1077 | ret = mmc_test_cases[i].run(test); | |
1078 | switch (ret) { | |
1079 | case RESULT_OK: | |
1080 | printk(KERN_INFO "%s: Result: OK\n", | |
1081 | mmc_hostname(test->card->host)); | |
1082 | break; | |
1083 | case RESULT_FAIL: | |
1084 | printk(KERN_INFO "%s: Result: FAILED\n", | |
1085 | mmc_hostname(test->card->host)); | |
1086 | break; | |
1087 | case RESULT_UNSUP_HOST: | |
1088 | printk(KERN_INFO "%s: Result: UNSUPPORTED " | |
1089 | "(by host)\n", | |
1090 | mmc_hostname(test->card->host)); | |
1091 | break; | |
1092 | case RESULT_UNSUP_CARD: | |
1093 | printk(KERN_INFO "%s: Result: UNSUPPORTED " | |
1094 | "(by card)\n", | |
1095 | mmc_hostname(test->card->host)); | |
1096 | break; | |
1097 | default: | |
1098 | printk(KERN_INFO "%s: Result: ERROR (%d)\n", | |
1099 | mmc_hostname(test->card->host), ret); | |
1100 | } | |
1101 | ||
1102 | if (mmc_test_cases[i].cleanup) { | |
1103 | ret = mmc_test_cases[i].cleanup(test); | |
1104 | if (ret) { | |
1105 | printk(KERN_INFO "%s: Warning: Cleanup " | |
1106 | "stage failed! (%d)\n", | |
1107 | mmc_hostname(test->card->host), | |
1108 | ret); | |
1109 | } | |
1110 | } | |
1111 | } | |
1112 | ||
1113 | mmc_release_host(test->card->host); | |
1114 | ||
1115 | printk(KERN_INFO "%s: Tests completed.\n", | |
1116 | mmc_hostname(test->card->host)); | |
1117 | } | |
1118 | ||
1119 | static ssize_t mmc_test_show(struct device *dev, | |
1120 | struct device_attribute *attr, char *buf) | |
1121 | { | |
1122 | mutex_lock(&mmc_test_lock); | |
1123 | mutex_unlock(&mmc_test_lock); | |
1124 | ||
1125 | return 0; | |
1126 | } | |
1127 | ||
1128 | static ssize_t mmc_test_store(struct device *dev, | |
1129 | struct device_attribute *attr, const char *buf, size_t count) | |
1130 | { | |
1131 | struct mmc_card *card; | |
1132 | struct mmc_test_card *test; | |
fd8c326c | 1133 | int testcase; |
88ae600d PO |
1134 | |
1135 | card = container_of(dev, struct mmc_card, dev); | |
1136 | ||
fd8c326c PO |
1137 | testcase = simple_strtol(buf, NULL, 10); |
1138 | ||
88ae600d PO |
1139 | test = kzalloc(sizeof(struct mmc_test_card), GFP_KERNEL); |
1140 | if (!test) | |
1141 | return -ENOMEM; | |
1142 | ||
1143 | test->card = card; | |
1144 | ||
1145 | test->buffer = kzalloc(BUFFER_SIZE, GFP_KERNEL); | |
2661081f PO |
1146 | #ifdef CONFIG_HIGHMEM |
1147 | test->highmem = alloc_pages(GFP_KERNEL | __GFP_HIGHMEM, BUFFER_ORDER); | |
1148 | #endif | |
1149 | ||
1150 | #ifdef CONFIG_HIGHMEM | |
1151 | if (test->buffer && test->highmem) { | |
1152 | #else | |
88ae600d | 1153 | if (test->buffer) { |
2661081f | 1154 | #endif |
88ae600d | 1155 | mutex_lock(&mmc_test_lock); |
fd8c326c | 1156 | mmc_test_run(test, testcase); |
88ae600d PO |
1157 | mutex_unlock(&mmc_test_lock); |
1158 | } | |
1159 | ||
2661081f PO |
1160 | #ifdef CONFIG_HIGHMEM |
1161 | __free_pages(test->highmem, BUFFER_ORDER); | |
1162 | #endif | |
88ae600d PO |
1163 | kfree(test->buffer); |
1164 | kfree(test); | |
1165 | ||
1166 | return count; | |
1167 | } | |
1168 | ||
1169 | static DEVICE_ATTR(test, S_IWUSR | S_IRUGO, mmc_test_show, mmc_test_store); | |
1170 | ||
1171 | static int mmc_test_probe(struct mmc_card *card) | |
1172 | { | |
1173 | int ret; | |
1174 | ||
0121a982 PO |
1175 | if ((card->type != MMC_TYPE_MMC) && (card->type != MMC_TYPE_SD)) |
1176 | return -ENODEV; | |
1177 | ||
88ae600d PO |
1178 | ret = device_create_file(&card->dev, &dev_attr_test); |
1179 | if (ret) | |
1180 | return ret; | |
1181 | ||
60c9c7b1 PO |
1182 | dev_info(&card->dev, "Card claimed for testing.\n"); |
1183 | ||
88ae600d PO |
1184 | return 0; |
1185 | } | |
1186 | ||
1187 | static void mmc_test_remove(struct mmc_card *card) | |
1188 | { | |
1189 | device_remove_file(&card->dev, &dev_attr_test); | |
1190 | } | |
1191 | ||
1192 | static struct mmc_driver mmc_driver = { | |
1193 | .drv = { | |
1194 | .name = "mmc_test", | |
1195 | }, | |
1196 | .probe = mmc_test_probe, | |
1197 | .remove = mmc_test_remove, | |
1198 | }; | |
1199 | ||
1200 | static int __init mmc_test_init(void) | |
1201 | { | |
1202 | return mmc_register_driver(&mmc_driver); | |
1203 | } | |
1204 | ||
1205 | static void __exit mmc_test_exit(void) | |
1206 | { | |
1207 | mmc_unregister_driver(&mmc_driver); | |
1208 | } | |
1209 | ||
1210 | module_init(mmc_test_init); | |
1211 | module_exit(mmc_test_exit); | |
1212 | ||
1213 | MODULE_LICENSE("GPL"); | |
1214 | MODULE_DESCRIPTION("Multimedia Card (MMC) host test driver"); | |
1215 | MODULE_AUTHOR("Pierre Ossman"); |