2 * linux/drivers/mmc/card/mmc_test.c
4 * Copyright 2007-2008 Pierre Ossman
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.
12 #include <linux/mmc/core.h>
13 #include <linux/mmc/card.h>
14 #include <linux/mmc/host.h>
15 #include <linux/mmc/mmc.h>
17 #include <linux/scatterlist.h>
21 #define RESULT_UNSUP_HOST 2
22 #define RESULT_UNSUP_CARD 3
24 #define BUFFER_ORDER 2
25 #define BUFFER_SIZE (PAGE_SIZE << BUFFER_ORDER)
27 struct mmc_test_card {
28 struct mmc_card *card;
30 u8 scratch[BUFFER_SIZE];
37 /*******************************************************************/
38 /* General helper functions */
39 /*******************************************************************/
42 * Configure correct block size in card
44 static int mmc_test_set_blksize(struct mmc_test_card *test, unsigned size)
46 struct mmc_command cmd;
49 cmd.opcode = MMC_SET_BLOCKLEN;
51 cmd.flags = MMC_RSP_R1 | MMC_CMD_AC;
52 ret = mmc_wait_for_cmd(test->card->host, &cmd, 0);
60 * Fill in the mmc_request structure given a set of transfer parameters.
62 static void mmc_test_prepare_mrq(struct mmc_test_card *test,
63 struct mmc_request *mrq, struct scatterlist *sg, unsigned sg_len,
64 unsigned dev_addr, unsigned blocks, unsigned blksz, int write)
66 BUG_ON(!mrq || !mrq->cmd || !mrq->data || !mrq->stop);
69 mrq->cmd->opcode = write ?
70 MMC_WRITE_MULTIPLE_BLOCK : MMC_READ_MULTIPLE_BLOCK;
72 mrq->cmd->opcode = write ?
73 MMC_WRITE_BLOCK : MMC_READ_SINGLE_BLOCK;
76 mrq->cmd->arg = dev_addr;
77 mrq->cmd->flags = MMC_RSP_R1 | MMC_CMD_ADTC;
82 mrq->stop->opcode = MMC_STOP_TRANSMISSION;
84 mrq->stop->flags = MMC_RSP_R1B | MMC_CMD_AC;
87 mrq->data->blksz = blksz;
88 mrq->data->blocks = blocks;
89 mrq->data->flags = write ? MMC_DATA_WRITE : MMC_DATA_READ;
91 mrq->data->sg_len = sg_len;
93 mmc_set_data_timeout(mrq->data, test->card);
97 * Wait for the card to finish the busy state
99 static int mmc_test_wait_busy(struct mmc_test_card *test)
102 struct mmc_command cmd;
106 memset(&cmd, 0, sizeof(struct mmc_command));
108 cmd.opcode = MMC_SEND_STATUS;
109 cmd.arg = test->card->rca << 16;
110 cmd.flags = MMC_RSP_R1 | MMC_CMD_AC;
112 ret = mmc_wait_for_cmd(test->card->host, &cmd, 0);
116 if (!busy && !(cmd.resp[0] & R1_READY_FOR_DATA)) {
118 printk(KERN_INFO "%s: Warning: Host did not "
119 "wait for busy state to end.\n",
120 mmc_hostname(test->card->host));
122 } while (!(cmd.resp[0] & R1_READY_FOR_DATA));
128 * Transfer a single sector of kernel addressable data
130 static int mmc_test_buffer_transfer(struct mmc_test_card *test,
131 u8 *buffer, unsigned addr, unsigned blksz, int write)
135 struct mmc_request mrq;
136 struct mmc_command cmd;
137 struct mmc_command stop;
138 struct mmc_data data;
140 struct scatterlist sg;
142 memset(&mrq, 0, sizeof(struct mmc_request));
143 memset(&cmd, 0, sizeof(struct mmc_command));
144 memset(&data, 0, sizeof(struct mmc_data));
145 memset(&stop, 0, sizeof(struct mmc_command));
151 sg_init_one(&sg, buffer, blksz);
153 mmc_test_prepare_mrq(test, &mrq, &sg, 1, addr, 1, blksz, write);
155 mmc_wait_for_req(test->card->host, &mrq);
162 ret = mmc_test_wait_busy(test);
169 /*******************************************************************/
170 /* Test preparation and cleanup */
171 /*******************************************************************/
174 * Fill the first couple of sectors of the card with known data
175 * so that bad reads/writes can be detected
177 static int __mmc_test_prepare(struct mmc_test_card *test, int write)
181 ret = mmc_test_set_blksize(test, 512);
186 memset(test->buffer, 0xDF, 512);
188 for (i = 0;i < 512;i++)
192 for (i = 0;i < BUFFER_SIZE / 512;i++) {
193 ret = mmc_test_buffer_transfer(test, test->buffer, i * 512, 512, 1);
201 static int mmc_test_prepare_write(struct mmc_test_card *test)
203 return __mmc_test_prepare(test, 1);
206 static int mmc_test_prepare_read(struct mmc_test_card *test)
208 return __mmc_test_prepare(test, 0);
211 static int mmc_test_cleanup(struct mmc_test_card *test)
215 ret = mmc_test_set_blksize(test, 512);
219 memset(test->buffer, 0, 512);
221 for (i = 0;i < BUFFER_SIZE / 512;i++) {
222 ret = mmc_test_buffer_transfer(test, test->buffer, i * 512, 512, 1);
230 /*******************************************************************/
231 /* Test execution helpers */
232 /*******************************************************************/
235 * Modifies the mmc_request to perform the "short transfer" tests
237 static void mmc_test_prepare_broken_mrq(struct mmc_test_card *test,
238 struct mmc_request *mrq, int write)
240 BUG_ON(!mrq || !mrq->cmd || !mrq->data);
242 if (mrq->data->blocks > 1) {
243 mrq->cmd->opcode = write ?
244 MMC_WRITE_BLOCK : MMC_READ_SINGLE_BLOCK;
247 mrq->cmd->opcode = MMC_SEND_STATUS;
248 mrq->cmd->arg = test->card->rca << 16;
253 * Checks that a normal transfer didn't have any errors
255 static int mmc_test_check_result(struct mmc_test_card *test,
256 struct mmc_request *mrq)
260 BUG_ON(!mrq || !mrq->cmd || !mrq->data);
264 if (!ret && mrq->cmd->error)
265 ret = mrq->cmd->error;
266 if (!ret && mrq->data->error)
267 ret = mrq->data->error;
268 if (!ret && mrq->stop && mrq->stop->error)
269 ret = mrq->stop->error;
270 if (!ret && mrq->data->bytes_xfered !=
271 mrq->data->blocks * mrq->data->blksz)
275 ret = RESULT_UNSUP_HOST;
281 * Checks that a "short transfer" behaved as expected
283 static int mmc_test_check_broken_result(struct mmc_test_card *test,
284 struct mmc_request *mrq)
288 BUG_ON(!mrq || !mrq->cmd || !mrq->data);
292 if (!ret && mrq->cmd->error)
293 ret = mrq->cmd->error;
294 if (!ret && mrq->data->error == 0)
296 if (!ret && mrq->data->error != -ETIMEDOUT)
297 ret = mrq->data->error;
298 if (!ret && mrq->stop && mrq->stop->error)
299 ret = mrq->stop->error;
300 if (mrq->data->blocks > 1) {
301 if (!ret && mrq->data->bytes_xfered > mrq->data->blksz)
304 if (!ret && mrq->data->bytes_xfered > 0)
309 ret = RESULT_UNSUP_HOST;
315 * Tests a basic transfer with certain parameters
317 static int mmc_test_simple_transfer(struct mmc_test_card *test,
318 struct scatterlist *sg, unsigned sg_len, unsigned dev_addr,
319 unsigned blocks, unsigned blksz, int write)
321 struct mmc_request mrq;
322 struct mmc_command cmd;
323 struct mmc_command stop;
324 struct mmc_data data;
326 memset(&mrq, 0, sizeof(struct mmc_request));
327 memset(&cmd, 0, sizeof(struct mmc_command));
328 memset(&data, 0, sizeof(struct mmc_data));
329 memset(&stop, 0, sizeof(struct mmc_command));
335 mmc_test_prepare_mrq(test, &mrq, sg, sg_len, dev_addr,
336 blocks, blksz, write);
338 mmc_wait_for_req(test->card->host, &mrq);
340 mmc_test_wait_busy(test);
342 return mmc_test_check_result(test, &mrq);
346 * Tests a transfer where the card will fail completely or partly
348 static int mmc_test_broken_transfer(struct mmc_test_card *test,
349 unsigned blocks, unsigned blksz, int write)
351 struct mmc_request mrq;
352 struct mmc_command cmd;
353 struct mmc_command stop;
354 struct mmc_data data;
356 struct scatterlist sg;
358 memset(&mrq, 0, sizeof(struct mmc_request));
359 memset(&cmd, 0, sizeof(struct mmc_command));
360 memset(&data, 0, sizeof(struct mmc_data));
361 memset(&stop, 0, sizeof(struct mmc_command));
367 sg_init_one(&sg, test->buffer, blocks * blksz);
369 mmc_test_prepare_mrq(test, &mrq, &sg, 1, 0, blocks, blksz, write);
370 mmc_test_prepare_broken_mrq(test, &mrq, write);
372 mmc_wait_for_req(test->card->host, &mrq);
374 mmc_test_wait_busy(test);
376 return mmc_test_check_broken_result(test, &mrq);
380 * Does a complete transfer test where data is also validated
382 * Note: mmc_test_prepare() must have been done before this call
384 static int mmc_test_transfer(struct mmc_test_card *test,
385 struct scatterlist *sg, unsigned sg_len, unsigned dev_addr,
386 unsigned blocks, unsigned blksz, int write)
392 for (i = 0;i < blocks * blksz;i++)
393 test->scratch[i] = i;
395 memset(test->scratch, 0, BUFFER_SIZE);
397 local_irq_save(flags);
398 sg_copy_from_buffer(sg, sg_len, test->scratch, BUFFER_SIZE);
399 local_irq_restore(flags);
401 ret = mmc_test_set_blksize(test, blksz);
405 ret = mmc_test_simple_transfer(test, sg, sg_len, dev_addr,
406 blocks, blksz, write);
413 ret = mmc_test_set_blksize(test, 512);
417 sectors = (blocks * blksz + 511) / 512;
418 if ((sectors * 512) == (blocks * blksz))
421 if ((sectors * 512) > BUFFER_SIZE)
424 memset(test->buffer, 0, sectors * 512);
426 for (i = 0;i < sectors;i++) {
427 ret = mmc_test_buffer_transfer(test,
428 test->buffer + i * 512,
429 dev_addr + i * 512, 512, 0);
434 for (i = 0;i < blocks * blksz;i++) {
435 if (test->buffer[i] != (u8)i)
439 for (;i < sectors * 512;i++) {
440 if (test->buffer[i] != 0xDF)
444 local_irq_save(flags);
445 sg_copy_to_buffer(sg, sg_len, test->scratch, BUFFER_SIZE);
446 local_irq_restore(flags);
447 for (i = 0;i < blocks * blksz;i++) {
448 if (test->scratch[i] != (u8)i)
456 /*******************************************************************/
458 /*******************************************************************/
460 struct mmc_test_case {
463 int (*prepare)(struct mmc_test_card *);
464 int (*run)(struct mmc_test_card *);
465 int (*cleanup)(struct mmc_test_card *);
468 static int mmc_test_basic_write(struct mmc_test_card *test)
471 struct scatterlist sg;
473 ret = mmc_test_set_blksize(test, 512);
477 sg_init_one(&sg, test->buffer, 512);
479 ret = mmc_test_simple_transfer(test, &sg, 1, 0, 1, 512, 1);
486 static int mmc_test_basic_read(struct mmc_test_card *test)
489 struct scatterlist sg;
491 ret = mmc_test_set_blksize(test, 512);
495 sg_init_one(&sg, test->buffer, 512);
497 ret = mmc_test_simple_transfer(test, &sg, 1, 0, 1, 512, 0);
504 static int mmc_test_verify_write(struct mmc_test_card *test)
507 struct scatterlist sg;
509 sg_init_one(&sg, test->buffer, 512);
511 ret = mmc_test_transfer(test, &sg, 1, 0, 1, 512, 1);
518 static int mmc_test_verify_read(struct mmc_test_card *test)
521 struct scatterlist sg;
523 sg_init_one(&sg, test->buffer, 512);
525 ret = mmc_test_transfer(test, &sg, 1, 0, 1, 512, 0);
532 static int mmc_test_multi_write(struct mmc_test_card *test)
536 struct scatterlist sg;
538 if (test->card->host->max_blk_count == 1)
539 return RESULT_UNSUP_HOST;
541 size = PAGE_SIZE * 2;
542 size = min(size, test->card->host->max_req_size);
543 size = min(size, test->card->host->max_seg_size);
544 size = min(size, test->card->host->max_blk_count * 512);
547 return RESULT_UNSUP_HOST;
549 sg_init_one(&sg, test->buffer, size);
551 ret = mmc_test_transfer(test, &sg, 1, 0, size/512, 512, 1);
558 static int mmc_test_multi_read(struct mmc_test_card *test)
562 struct scatterlist sg;
564 if (test->card->host->max_blk_count == 1)
565 return RESULT_UNSUP_HOST;
567 size = PAGE_SIZE * 2;
568 size = min(size, test->card->host->max_req_size);
569 size = min(size, test->card->host->max_seg_size);
570 size = min(size, test->card->host->max_blk_count * 512);
573 return RESULT_UNSUP_HOST;
575 sg_init_one(&sg, test->buffer, size);
577 ret = mmc_test_transfer(test, &sg, 1, 0, size/512, 512, 0);
584 static int mmc_test_pow2_write(struct mmc_test_card *test)
587 struct scatterlist sg;
589 if (!test->card->csd.write_partial)
590 return RESULT_UNSUP_CARD;
592 for (i = 1; i < 512;i <<= 1) {
593 sg_init_one(&sg, test->buffer, i);
594 ret = mmc_test_transfer(test, &sg, 1, 0, 1, i, 1);
602 static int mmc_test_pow2_read(struct mmc_test_card *test)
605 struct scatterlist sg;
607 if (!test->card->csd.read_partial)
608 return RESULT_UNSUP_CARD;
610 for (i = 1; i < 512;i <<= 1) {
611 sg_init_one(&sg, test->buffer, i);
612 ret = mmc_test_transfer(test, &sg, 1, 0, 1, i, 0);
620 static int mmc_test_weird_write(struct mmc_test_card *test)
623 struct scatterlist sg;
625 if (!test->card->csd.write_partial)
626 return RESULT_UNSUP_CARD;
628 for (i = 3; i < 512;i += 7) {
629 sg_init_one(&sg, test->buffer, i);
630 ret = mmc_test_transfer(test, &sg, 1, 0, 1, i, 1);
638 static int mmc_test_weird_read(struct mmc_test_card *test)
641 struct scatterlist sg;
643 if (!test->card->csd.read_partial)
644 return RESULT_UNSUP_CARD;
646 for (i = 3; i < 512;i += 7) {
647 sg_init_one(&sg, test->buffer, i);
648 ret = mmc_test_transfer(test, &sg, 1, 0, 1, i, 0);
656 static int mmc_test_align_write(struct mmc_test_card *test)
659 struct scatterlist sg;
661 for (i = 1;i < 4;i++) {
662 sg_init_one(&sg, test->buffer + i, 512);
663 ret = mmc_test_transfer(test, &sg, 1, 0, 1, 512, 1);
671 static int mmc_test_align_read(struct mmc_test_card *test)
674 struct scatterlist sg;
676 for (i = 1;i < 4;i++) {
677 sg_init_one(&sg, test->buffer + i, 512);
678 ret = mmc_test_transfer(test, &sg, 1, 0, 1, 512, 0);
686 static int mmc_test_align_multi_write(struct mmc_test_card *test)
690 struct scatterlist sg;
692 if (test->card->host->max_blk_count == 1)
693 return RESULT_UNSUP_HOST;
695 size = PAGE_SIZE * 2;
696 size = min(size, test->card->host->max_req_size);
697 size = min(size, test->card->host->max_seg_size);
698 size = min(size, test->card->host->max_blk_count * 512);
701 return RESULT_UNSUP_HOST;
703 for (i = 1;i < 4;i++) {
704 sg_init_one(&sg, test->buffer + i, size);
705 ret = mmc_test_transfer(test, &sg, 1, 0, size/512, 512, 1);
713 static int mmc_test_align_multi_read(struct mmc_test_card *test)
717 struct scatterlist sg;
719 if (test->card->host->max_blk_count == 1)
720 return RESULT_UNSUP_HOST;
722 size = PAGE_SIZE * 2;
723 size = min(size, test->card->host->max_req_size);
724 size = min(size, test->card->host->max_seg_size);
725 size = min(size, test->card->host->max_blk_count * 512);
728 return RESULT_UNSUP_HOST;
730 for (i = 1;i < 4;i++) {
731 sg_init_one(&sg, test->buffer + i, size);
732 ret = mmc_test_transfer(test, &sg, 1, 0, size/512, 512, 0);
740 static int mmc_test_xfersize_write(struct mmc_test_card *test)
744 ret = mmc_test_set_blksize(test, 512);
748 ret = mmc_test_broken_transfer(test, 1, 512, 1);
755 static int mmc_test_xfersize_read(struct mmc_test_card *test)
759 ret = mmc_test_set_blksize(test, 512);
763 ret = mmc_test_broken_transfer(test, 1, 512, 0);
770 static int mmc_test_multi_xfersize_write(struct mmc_test_card *test)
774 if (test->card->host->max_blk_count == 1)
775 return RESULT_UNSUP_HOST;
777 ret = mmc_test_set_blksize(test, 512);
781 ret = mmc_test_broken_transfer(test, 2, 512, 1);
788 static int mmc_test_multi_xfersize_read(struct mmc_test_card *test)
792 if (test->card->host->max_blk_count == 1)
793 return RESULT_UNSUP_HOST;
795 ret = mmc_test_set_blksize(test, 512);
799 ret = mmc_test_broken_transfer(test, 2, 512, 0);
806 #ifdef CONFIG_HIGHMEM
808 static int mmc_test_write_high(struct mmc_test_card *test)
811 struct scatterlist sg;
813 sg_init_table(&sg, 1);
814 sg_set_page(&sg, test->highmem, 512, 0);
816 ret = mmc_test_transfer(test, &sg, 1, 0, 1, 512, 1);
823 static int mmc_test_read_high(struct mmc_test_card *test)
826 struct scatterlist sg;
828 sg_init_table(&sg, 1);
829 sg_set_page(&sg, test->highmem, 512, 0);
831 ret = mmc_test_transfer(test, &sg, 1, 0, 1, 512, 0);
838 static int mmc_test_multi_write_high(struct mmc_test_card *test)
842 struct scatterlist sg;
844 if (test->card->host->max_blk_count == 1)
845 return RESULT_UNSUP_HOST;
847 size = PAGE_SIZE * 2;
848 size = min(size, test->card->host->max_req_size);
849 size = min(size, test->card->host->max_seg_size);
850 size = min(size, test->card->host->max_blk_count * 512);
853 return RESULT_UNSUP_HOST;
855 sg_init_table(&sg, 1);
856 sg_set_page(&sg, test->highmem, size, 0);
858 ret = mmc_test_transfer(test, &sg, 1, 0, size/512, 512, 1);
865 static int mmc_test_multi_read_high(struct mmc_test_card *test)
869 struct scatterlist sg;
871 if (test->card->host->max_blk_count == 1)
872 return RESULT_UNSUP_HOST;
874 size = PAGE_SIZE * 2;
875 size = min(size, test->card->host->max_req_size);
876 size = min(size, test->card->host->max_seg_size);
877 size = min(size, test->card->host->max_blk_count * 512);
880 return RESULT_UNSUP_HOST;
882 sg_init_table(&sg, 1);
883 sg_set_page(&sg, test->highmem, size, 0);
885 ret = mmc_test_transfer(test, &sg, 1, 0, size/512, 512, 0);
892 #endif /* CONFIG_HIGHMEM */
894 static const struct mmc_test_case mmc_test_cases[] = {
896 .name = "Basic write (no data verification)",
897 .run = mmc_test_basic_write,
901 .name = "Basic read (no data verification)",
902 .run = mmc_test_basic_read,
906 .name = "Basic write (with data verification)",
907 .prepare = mmc_test_prepare_write,
908 .run = mmc_test_verify_write,
909 .cleanup = mmc_test_cleanup,
913 .name = "Basic read (with data verification)",
914 .prepare = mmc_test_prepare_read,
915 .run = mmc_test_verify_read,
916 .cleanup = mmc_test_cleanup,
920 .name = "Multi-block write",
921 .prepare = mmc_test_prepare_write,
922 .run = mmc_test_multi_write,
923 .cleanup = mmc_test_cleanup,
927 .name = "Multi-block read",
928 .prepare = mmc_test_prepare_read,
929 .run = mmc_test_multi_read,
930 .cleanup = mmc_test_cleanup,
934 .name = "Power of two block writes",
935 .prepare = mmc_test_prepare_write,
936 .run = mmc_test_pow2_write,
937 .cleanup = mmc_test_cleanup,
941 .name = "Power of two block reads",
942 .prepare = mmc_test_prepare_read,
943 .run = mmc_test_pow2_read,
944 .cleanup = mmc_test_cleanup,
948 .name = "Weird sized block writes",
949 .prepare = mmc_test_prepare_write,
950 .run = mmc_test_weird_write,
951 .cleanup = mmc_test_cleanup,
955 .name = "Weird sized block reads",
956 .prepare = mmc_test_prepare_read,
957 .run = mmc_test_weird_read,
958 .cleanup = mmc_test_cleanup,
962 .name = "Badly aligned write",
963 .prepare = mmc_test_prepare_write,
964 .run = mmc_test_align_write,
965 .cleanup = mmc_test_cleanup,
969 .name = "Badly aligned read",
970 .prepare = mmc_test_prepare_read,
971 .run = mmc_test_align_read,
972 .cleanup = mmc_test_cleanup,
976 .name = "Badly aligned multi-block write",
977 .prepare = mmc_test_prepare_write,
978 .run = mmc_test_align_multi_write,
979 .cleanup = mmc_test_cleanup,
983 .name = "Badly aligned multi-block read",
984 .prepare = mmc_test_prepare_read,
985 .run = mmc_test_align_multi_read,
986 .cleanup = mmc_test_cleanup,
990 .name = "Correct xfer_size at write (start failure)",
991 .run = mmc_test_xfersize_write,
995 .name = "Correct xfer_size at read (start failure)",
996 .run = mmc_test_xfersize_read,
1000 .name = "Correct xfer_size at write (midway failure)",
1001 .run = mmc_test_multi_xfersize_write,
1005 .name = "Correct xfer_size at read (midway failure)",
1006 .run = mmc_test_multi_xfersize_read,
1009 #ifdef CONFIG_HIGHMEM
1012 .name = "Highmem write",
1013 .prepare = mmc_test_prepare_write,
1014 .run = mmc_test_write_high,
1015 .cleanup = mmc_test_cleanup,
1019 .name = "Highmem read",
1020 .prepare = mmc_test_prepare_read,
1021 .run = mmc_test_read_high,
1022 .cleanup = mmc_test_cleanup,
1026 .name = "Multi-block highmem write",
1027 .prepare = mmc_test_prepare_write,
1028 .run = mmc_test_multi_write_high,
1029 .cleanup = mmc_test_cleanup,
1033 .name = "Multi-block highmem read",
1034 .prepare = mmc_test_prepare_read,
1035 .run = mmc_test_multi_read_high,
1036 .cleanup = mmc_test_cleanup,
1039 #endif /* CONFIG_HIGHMEM */
1043 static DEFINE_MUTEX(mmc_test_lock);
1045 static void mmc_test_run(struct mmc_test_card *test, int testcase)
1049 printk(KERN_INFO "%s: Starting tests of card %s...\n",
1050 mmc_hostname(test->card->host), mmc_card_id(test->card));
1052 mmc_claim_host(test->card->host);
1054 for (i = 0;i < ARRAY_SIZE(mmc_test_cases);i++) {
1055 if (testcase && ((i + 1) != testcase))
1058 printk(KERN_INFO "%s: Test case %d. %s...\n",
1059 mmc_hostname(test->card->host), i + 1,
1060 mmc_test_cases[i].name);
1062 if (mmc_test_cases[i].prepare) {
1063 ret = mmc_test_cases[i].prepare(test);
1065 printk(KERN_INFO "%s: Result: Prepare "
1066 "stage failed! (%d)\n",
1067 mmc_hostname(test->card->host),
1073 ret = mmc_test_cases[i].run(test);
1076 printk(KERN_INFO "%s: Result: OK\n",
1077 mmc_hostname(test->card->host));
1080 printk(KERN_INFO "%s: Result: FAILED\n",
1081 mmc_hostname(test->card->host));
1083 case RESULT_UNSUP_HOST:
1084 printk(KERN_INFO "%s: Result: UNSUPPORTED "
1086 mmc_hostname(test->card->host));
1088 case RESULT_UNSUP_CARD:
1089 printk(KERN_INFO "%s: Result: UNSUPPORTED "
1091 mmc_hostname(test->card->host));
1094 printk(KERN_INFO "%s: Result: ERROR (%d)\n",
1095 mmc_hostname(test->card->host), ret);
1098 if (mmc_test_cases[i].cleanup) {
1099 ret = mmc_test_cases[i].cleanup(test);
1101 printk(KERN_INFO "%s: Warning: Cleanup "
1102 "stage failed! (%d)\n",
1103 mmc_hostname(test->card->host),
1109 mmc_release_host(test->card->host);
1111 printk(KERN_INFO "%s: Tests completed.\n",
1112 mmc_hostname(test->card->host));
1115 static ssize_t mmc_test_show(struct device *dev,
1116 struct device_attribute *attr, char *buf)
1118 mutex_lock(&mmc_test_lock);
1119 mutex_unlock(&mmc_test_lock);
1124 static ssize_t mmc_test_store(struct device *dev,
1125 struct device_attribute *attr, const char *buf, size_t count)
1127 struct mmc_card *card;
1128 struct mmc_test_card *test;
1131 card = container_of(dev, struct mmc_card, dev);
1133 testcase = simple_strtol(buf, NULL, 10);
1135 test = kzalloc(sizeof(struct mmc_test_card), GFP_KERNEL);
1141 test->buffer = kzalloc(BUFFER_SIZE, GFP_KERNEL);
1142 #ifdef CONFIG_HIGHMEM
1143 test->highmem = alloc_pages(GFP_KERNEL | __GFP_HIGHMEM, BUFFER_ORDER);
1146 #ifdef CONFIG_HIGHMEM
1147 if (test->buffer && test->highmem) {
1151 mutex_lock(&mmc_test_lock);
1152 mmc_test_run(test, testcase);
1153 mutex_unlock(&mmc_test_lock);
1156 #ifdef CONFIG_HIGHMEM
1157 __free_pages(test->highmem, BUFFER_ORDER);
1159 kfree(test->buffer);
1165 static DEVICE_ATTR(test, S_IWUSR | S_IRUGO, mmc_test_show, mmc_test_store);
1167 static int mmc_test_probe(struct mmc_card *card)
1171 if ((card->type != MMC_TYPE_MMC) && (card->type != MMC_TYPE_SD))
1174 ret = device_create_file(&card->dev, &dev_attr_test);
1178 dev_info(&card->dev, "Card claimed for testing.\n");
1183 static void mmc_test_remove(struct mmc_card *card)
1185 device_remove_file(&card->dev, &dev_attr_test);
1188 static struct mmc_driver mmc_driver = {
1192 .probe = mmc_test_probe,
1193 .remove = mmc_test_remove,
1196 static int __init mmc_test_init(void)
1198 return mmc_register_driver(&mmc_driver);
1201 static void __exit mmc_test_exit(void)
1203 mmc_unregister_driver(&mmc_driver);
1206 module_init(mmc_test_init);
1207 module_exit(mmc_test_exit);
1209 MODULE_LICENSE("GPL");
1210 MODULE_DESCRIPTION("Multimedia Card (MMC) host test driver");
1211 MODULE_AUTHOR("Pierre Ossman");