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source: rtems/c/src/libchip/i2c/spi-sd-card.c @ 57df51f

4.104.114.95

Last change on this file since 57df51f was 3735f08, checked in by Chris Johns <chrisj@…>, on 07/29/08 at 02:23:48

2008-07-29 Chris Johns <chrisj@…>

libchip/i2c/spi-sd-card.c: Updated to the libblock changes.

libchip/ide/ata.c: Change to use a mutex rather than disable pre-emption. Updated to the libblock changes.

libchip/ide/ata_internal.h: Updated to the new chains API.

libchip/ide/ide_controller.c: Updated to the libblock changes. Added come debug tracing.

libchip/ide/ide_ctrl_cfg.h, libchip/ide/ide_ctrl_io.h: Updated to the libblock changes.

Property mode set to 100644

File size: 33.0 KB

Line
1	/**
2	* @file
3	*
4	* @brief SD Card LibI2C driver.
5	*/
6
7	/*
8	* Copyright (c) 2008
9	* Embedded Brains GmbH
10	* Obere Lagerstr. 30
11	* D-82178 Puchheim
12	* Germany
13	* rtems@embedded-brains.de
14	*
15	* The license and distribution terms for this file may be found in the file
16	* LICENSE in this distribution or at http://www.rtems.com/license/LICENSE.
17	*/
18
19	#include <stdio.h>
20	#include <errno.h>
21	#include <inttypes.h>
22
23	#include <rtems.h>
24	#include <rtems/libi2c.h>
25	#include <rtems/libio.h>
26	#include <rtems/diskdevs.h>
27
28	#include <libchip/spi-sd-card.h>
29
30	#include <rtems/status-checks.h>
31
32	/**
33	* @name Integer to and from Byte-Stream Converter
34	* @{
35	*/
36
37	static inline uint16_t sd_card_get_uint16( const uint8_t *s)
38	{
39	return ((uint16_t) s [0] << 8) \| ((uint16_t) s [1]);
40	}
41
42	static inline uint32_t sd_card_get_uint32( const uint8_t *s)
43	{
44	return ((uint32_t) s [0] << 24) \| ((uint32_t) s [1] << 16) \| ((uint32_t) s [2] << 8) \| ((uint32_t) s [3]);
45	}
46
47	static inline void sd_card_put_uint16( uint16_t v, uint8_t *s)
48	{
49	*s++ = v >> 8;
50	*s = v;
51	}
52
53	static inline void sd_card_put_uint32( uint32_t v, uint8_t *s)
54	{
55	*s++ = v >> 24;
56	*s++ = v >> 16;
57	*s++ = v >> 8;
58	*s = v;
59	}
60
61	/** @} */
62
63	#define SD_CARD_BUSY_TOKEN 0
64
65	#define SD_CARD_BLOCK_SIZE_DEFAULT 512
66
67	#define SD_CARD_COMMAND_RESPONSE_START 7
68
69	/**
70	* @name Commands
71	* @{
72	*/
73
74	#define SD_CARD_CMD_GO_IDLE_STATE 0
75	#define SD_CARD_CMD_SEND_OP_COND 1
76	#define SD_CARD_CMD_SEND_CSD 9
77	#define SD_CARD_CMD_SEND_CID 10
78	#define SD_CARD_CMD_STOP_TRANSMISSION 12
79	#define SD_CARD_CMD_SEND_STATUS 13
80	#define SD_CARD_CMD_SET_BLOCKLEN 16
81	#define SD_CARD_CMD_READ_SINGLE_BLOCK 17
82	#define SD_CARD_CMD_READ_MULTIPLE_BLOCK 18
83	#define SD_CARD_CMD_SET_BLOCK_COUNT 23
84	#define SD_CARD_CMD_WRITE_BLOCK 24
85	#define SD_CARD_CMD_WRITE_MULTIPLE_BLOCK 25
86	#define SD_CARD_CMD_PROGRAM_CSD 27
87	#define SD_CARD_CMD_SET_WRITE_PROT 28
88	#define SD_CARD_CMD_CLR_WRITE_PROT 29
89	#define SD_CARD_CMD_SEND_WRITE_PROT 30
90	#define SD_CARD_CMD_TAG_SECTOR_START 32
91	#define SD_CARD_CMD_TAG_SECTOR_END 33
92	#define SD_CARD_CMD_UNTAG_SECTOR 34
93	#define SD_CARD_CMD_TAG_ERASE_GROUP_START 35
94	#define SD_CARD_CMD_TAG_ERASE_GROUP_END 36
95	#define SD_CARD_CMD_UNTAG_ERASE_GROUP 37
96	#define SD_CARD_CMD_ERASE 38
97	#define SD_CARD_CMD_LOCK_UNLOCK 42
98	#define SD_CARD_CMD_APP_CMD 55
99	#define SD_CARD_CMD_GEN_CND 56
100	#define SD_CARD_CMD_READ_OCR 58
101	#define SD_CARD_CMD_CRC_ON_OFF 59
102
103	/** @} */
104
105	/**
106	* @name Application Commands
107	* @{
108	*/
109
110	#define SD_CARD_ACMD_SD_SEND_OP_COND 41
111
112	/** @} */
113
114	/**
115	* @name Command Fields
116	* @{
117	*/
118
119	#define SD_CARD_COMMAND_SET_COMMAND( c, cmd) (c) [1] = 0x40 + ((cmd) & 0x3f)
120	#define SD_CARD_COMMAND_SET_ARGUMENT( c, arg) sd_card_put_uint32( (arg), &((c) [2]))
121	#define SD_CARD_COMMAND_SET_CRC7( c, crc7) ((c) [6] = (crc7) << 1)
122
123	#define SD_CARD_COMMAND_GET_CRC7( c) ((c) [6] >> 1)
124
125	/** @} */
126
127	/**
128	* @name Response Fields
129	* @{
130	*/
131
132	#define SD_CARD_IS_RESPONSE( r) (((r) & 0x80) == 0)
133
134	#define SD_CARD_IS_ERRORLESS_RESPONSE( r) (((r) & 0x7e) == 0)
135
136	#define SD_CARD_IS_NOT_IDLE_RESPONSE( r) (((r) & 0x81) == 0)
137
138	#define SD_CARD_IS_DATA_ERROR( r) (((r) & 0xe0) == 0)
139
140	#define SD_CARD_IS_DATA_REJECTED( r) (((r) & 0x1f) != 0x05)
141
142	/** @} */
143
144	/**
145	* @name Card Identification
146	* @{
147	*/
148
149	#define SD_CARD_CID_SIZE 16
150
151	#define SD_CARD_CID_GET_MID( cid) ((cid) [0])
152	#define SD_CARD_CID_GET_OID( cid) sd_card_get_uint16( cid + 1)
153	#define SD_CARD_CID_GET_PNM( cid, i) ((char) (cid) [3 + (i)])
154	#define SD_CARD_CID_GET_PRV( cid) ((cid) [9])
155	#define SD_CARD_CID_GET_PSN( cid) sd_card_get_uint32( cid + 10)
156	#define SD_CARD_CID_GET_MDT( cid) ((cid) [14])
157	#define SD_CARD_CID_GET_CRC7( cid) ((cid) [15] >> 1)
158
159	/** @} */
160
161	/**
162	* @name Card Specific Data
163	* @{
164	*/
165
166	#define SD_CARD_CSD_SIZE 16
167
168	#define SD_CARD_CSD_GET_CSD_STRUCTURE( csd) ((csd) [0] >> 6)
169	#define SD_CARD_CSD_GET_SPEC_VERS( csd) (((csd) [0] >> 2) & 0xf)
170	#define SD_CARD_CSD_GET_TAAC( csd) ((csd) [1])
171	#define SD_CARD_CSD_GET_NSAC( csd) ((csd) [2])
172	#define SD_CARD_CSD_GET_TRAN_SPEED( csd) ((csd) [3])
173	#define SD_CARD_CSD_GET_C_SIZE( csd) ((((csd) [6] & 0x3) << 10) + ((csd) [7] << 2) + (((csd) [8] >> 6) & 0x3))
174	#define SD_CARD_CSD_GET_C_SIZE_MULT( csd) ((((csd) [9] & 0x3) << 1) + (((csd) [10] >> 7) & 0x1))
175	#define SD_CARD_CSD_GET_READ_BLK_LEN( csd) ((csd) [5] & 0xf)
176	#define SD_CARD_CSD_GET_WRITE_BLK_LEN( csd) ((((csd) [12] & 0x3) << 2) + (((csd) [13] >> 6) & 0x3))
177
178	/** @} */
179
180	#define SD_CARD_INVALIDATE_RESPONSE_INDEX( e) e->response_index = SD_CARD_COMMAND_SIZE
181
182	/**
183	* @name Data Start and Stop Tokens
184	* @{
185	*/
186
187	#define SD_CARD_START_BLOCK_SINGLE_BLOCK_READ 0xfe
188	#define SD_CARD_START_BLOCK_MULTIPLE_BLOCK_READ 0xfe
189	#define SD_CARD_START_BLOCK_SINGLE_BLOCK_WRITE 0xfe
190	#define SD_CARD_START_BLOCK_MULTIPLE_BLOCK_WRITE 0xfc
191	#define SD_CARD_STOP_TRANSFER_MULTIPLE_BLOCK_WRITE 0xfd
192
193	/** @} */
194
195	/**
196	* @name Card Specific Data Functions
197	* @{
198	*/
199
200	static inline uint32_t sd_card_block_number( const uint8_t *csd)
201	{
202	uint32_t size = SD_CARD_CSD_GET_C_SIZE( csd);
203	uint32_t mult = 1 << (SD_CARD_CSD_GET_C_SIZE_MULT( csd) + 2);
204	return (size + 1) * mult;
205	}
206
207	static inline uint32_t sd_card_capacity( const uint8_t *csd)
208	{
209	uint32_t block_size = 1 << SD_CARD_CSD_GET_READ_BLK_LEN( csd);
210	return sd_card_block_number( csd) * block_size;
211	}
212
213	static inline uint32_t sd_card_transfer_speed( const uint8_t *csd)
214	{
215	uint32_t s = SD_CARD_CSD_GET_TRAN_SPEED( csd);
216	uint32_t e = s & 0x7;
217	uint32_t m = s >> 3;
218	switch (e) {
219	case 0: s = 10000; break;
220	case 1: s = 100000; break;
221	case 2: s = 1000000; break;
222	case 3: s = 10000000; break;
223	default: s = 0; break;
224	}
225	switch (m) {
226	case 1: s *= 10; break;
227	case 2: s *= 12; break;
228	case 3: s *= 13; break;
229	case 4: s *= 15; break;
230	case 5: s *= 20; break;
231	case 6: s *= 25; break;
232	case 7: s *= 30; break;
233	case 8: s *= 35; break;
234	case 9: s *= 40; break;
235	case 10: s *= 45; break;
236	case 11: s *= 50; break;
237	case 12: s *= 55; break;
238	case 13: s *= 60; break;
239	case 14: s *= 70; break;
240	case 15: s *= 80; break;
241	default: s *= 0; break;
242	}
243	return s;
244	}
245
246	static inline uint32_t sd_card_access_time( const uint8_t *csd)
247	{
248	uint32_t ac = SD_CARD_CSD_GET_TAAC( csd);
249	uint32_t e = ac & 0x7;
250	uint32_t m = ac >> 3;
251	switch (e) {
252	case 0: ac = 1; break;
253	case 1: ac = 10; break;
254	case 2: ac = 100; break;
255	case 3: ac = 1000; break;
256	case 4: ac = 10000; break;
257	case 5: ac = 100000; break;
258	case 6: ac = 1000000; break;
259	case 7: ac = 10000000; break;
260	default: ac = 0; break;
261	}
262	switch (m) {
263	case 1: ac *= 10; break;
264	case 2: ac *= 12; break;
265	case 3: ac *= 13; break;
266	case 4: ac *= 15; break;
267	case 5: ac *= 20; break;
268	case 6: ac *= 25; break;
269	case 7: ac *= 30; break;
270	case 8: ac *= 35; break;
271	case 9: ac *= 40; break;
272	case 10: ac *= 45; break;
273	case 11: ac *= 50; break;
274	case 12: ac *= 55; break;
275	case 13: ac *= 60; break;
276	case 14: ac *= 70; break;
277	case 15: ac *= 80; break;
278	default: ac *= 0; break;
279	}
280	return ac / 10;
281	}
282
283	static inline uint32_t sd_card_max_access_time( const uint8_t *csd, uint32_t transfer_speed)
284	{
285	uint64_t ac = sd_card_access_time( csd);
286	ac = (ac * (uint64_t) transfer_speed) / 8000000000ULL;
287	uint32_t n = SD_CARD_CSD_GET_NSAC( csd) * 100;
288	return n + ac;
289	}
290
291	/** @} */
292
293	/**
294	* @name Communication Functions
295	* @{
296	*/
297
298	static inline int sd_card_query( sd_card_driver_entry e, uint8_t in, int n)
299	{
300	return rtems_libi2c_read_bytes( e->minor, in, n);
301	}
302
303	static int sd_card_wait( sd_card_driver_entry *e)
304	{
305	int rv = 0;
306	int r = 0;
307	int n = 2;
308	while (e->busy) {
309	/* Query busy tokens */
310	rv = sd_card_query( e, e->response, n);
311	CHECK_RV( rv, "Busy");
312
313	/* Search for non busy tokens */
314	for (r = 0; r < n; ++r) {
315	if (e->response [r] != SD_CARD_BUSY_TOKEN) {
316	e->busy = false;
317	return 0;
318	}
319	}
320	n = SD_CARD_COMMAND_SIZE;
321
322	if (e->schedule_if_busy) {
323	/* Invoke the scheduler */
324	rtems_task_wake_after( RTEMS_YIELD_PROCESSOR);
325	}
326	}
327	return 0;
328	}
329
330	static int sd_card_send_command( sd_card_driver_entry *e, uint32_t command, uint32_t argument)
331	{
332	int rv = 0;
333	rtems_libi2c_read_write_t rw = { rd_buf : e->response, wr_buf : e->command, byte_cnt : SD_CARD_COMMAND_SIZE };
334	int r = 0;
335
336	SD_CARD_INVALIDATE_RESPONSE_INDEX( e);
337
338	/* Wait until card is not busy */
339	rv = sd_card_wait( e);
340	CHECK_RV( rv, "Wait");
341
342	/* Write command and read response */
343	SD_CARD_COMMAND_SET_COMMAND( e->command, command);
344	SD_CARD_COMMAND_SET_ARGUMENT( e->command, argument);
345	rv = rtems_libi2c_ioctl( e->minor, RTEMS_LIBI2C_IOCTL_READ_WRITE, &rw);
346	CHECK_RV( rv, "Write command and read response");
347
348	/* Check respose */
349	for (r = SD_CARD_COMMAND_RESPONSE_START; r < SD_CARD_COMMAND_SIZE; ++r) {
350	DEBUG_PRINT( "Token [%02u]: 0x%02x\n", r, e->response [r]);
351	e->response_index = r;
352	if (SD_CARD_IS_RESPONSE( e->response [r])) {
353	if (SD_CARD_IS_ERRORLESS_RESPONSE( e->response [r])) {
354	return 0;
355	} else {
356	SYSLOG_ERROR( "Command error [%02i]: 0x%02" PRIx8 "\n", r, e->response [r]);
357	goto sd_card_send_command_error;
358	}
359	} else if (e->response [r] != SD_CARD_IDLE_TOKEN) {
360	SYSLOG_ERROR( "Unexpected token [%02i]: 0x%02" PRIx8 "\n", r, e->response [r]);
361	goto sd_card_send_command_error;
362	}
363	}
364
365	SYSLOG_ERROR( "Timeout\n");
366
367	sd_card_send_command_error:
368
369	SYSLOG_ERROR( "Response:");
370	for (r = 0; r < SD_CARD_COMMAND_SIZE; ++r) {
371	if (e->response_index == r) {
372	SYSLOG_PRINT( " %02" PRIx8 ":[%02" PRIx8 "]", e->command [r], e->response [r]);
373	} else {
374	SYSLOG_PRINT( " %02" PRIx8 ":%02" PRIx8 "", e->command [r], e->response [r]);
375	}
376	}
377	SYSLOG_PRINT( "\n");
378
379	return -RTEMS_IO_ERROR;
380	}
381
382	static int sd_card_stop_multiple_block_read( sd_card_driver_entry *e)
383	{
384	int rv = 0;
385
386	SD_CARD_COMMAND_SET_COMMAND( e->command, SD_CARD_CMD_STOP_TRANSMISSION);
387	rv = rtems_libi2c_write_bytes( e->minor, e->command, SD_CARD_COMMAND_SIZE);
388	CHECK_RV( rv, "Write stop transfer token");
389
390	return 0;
391	}
392
393	static int sd_card_stop_multiple_block_write( sd_card_driver_entry *e)
394	{
395	int rv = 0;
396	uint8_t stop_transfer [3] = { SD_CARD_IDLE_TOKEN, SD_CARD_STOP_TRANSFER_MULTIPLE_BLOCK_WRITE, SD_CARD_IDLE_TOKEN };
397
398	/* Wait until card is not busy */
399	rv = sd_card_wait( e);
400	CHECK_RV( rv, "Wait");
401
402	/* Send stop token */
403	rv = rtems_libi2c_write_bytes( e->minor, stop_transfer, 3);
404	CHECK_RV( rv, "Write stop transfer token");
405
406	/* Card is now busy */
407	e->busy = true;
408
409	return 0;
410	}
411
412	static int sd_card_read( sd_card_driver_entry e, uint8_t start_token, uint8_t in, int n)
413	{
414	int rv = 0;
415
416	/* Access time idle tokens */
417	uint32_t n_ac = 1;
418
419	/* Discard command response */
420	int r = e->response_index + 1;
421
422	/* Minimum token number before data start */
423	int next_response_size = 2;
424
425	/* Standard response size */
426	int response_size = SD_CARD_COMMAND_SIZE;
427
428	/* Data input index */
429	int i = 0;
430
431	SD_CARD_INVALIDATE_RESPONSE_INDEX( e);
432
433	while (1) {
434	DEBUG_PRINT( "Search from %u to %u\n", r, response_size - 1);
435
436	/* Search the data start token in in current response buffer */
437	while (r < response_size) {
438	DEBUG_PRINT( "Token [%02u]: 0x%02x\n", r, e->response [r]);
439	if (n_ac > e->n_ac_max) {
440	SYSLOG_ERROR( "Timeout\n");
441	return -RTEMS_IO_ERROR;
442	} else if (e->response [r] == start_token) {
443	/* Discard data start token */
444	++r;
445	goto sd_card_read_start;
446	} else if (SD_CARD_IS_DATA_ERROR( e->response [r])) {
447	SYSLOG_ERROR( "Data error token [%02i]: 0x%02" PRIx8 "\n", r, e->response [r]);
448	return -RTEMS_IO_ERROR;
449	} else if (e->response [r] != SD_CARD_IDLE_TOKEN) {
450	SYSLOG_ERROR( "Unexpected token [%02i]: 0x%02" PRIx8 "\n", r, e->response [r]);
451	return -RTEMS_IO_ERROR;
452	}
453	++n_ac;
454	++r;
455	}
456
457	/* Query more */
458	rv = sd_card_query( e, e->response, next_response_size);
459	CHECK_RV( rv, "Query data start token");
460
461	/* Set standard query size */
462	response_size = next_response_size;
463	next_response_size = SD_CARD_COMMAND_SIZE;
464
465	/* Reset start position */
466	r = 0;
467	}
468
469	sd_card_read_start:
470
471	/* Read data */
472	while (r < response_size && i < n) {
473	in [i++] = e->response [r++];
474	}
475
476	/* Read more data? */
477	if (i < n) {
478	rv = sd_card_query( e, &in [i], n - i);
479	CHECK_RV( rv, "Read data");
480	i += rv;
481	}
482
483	/* Read CRC 16 and N_RC */
484	rv = sd_card_query( e, e->response, 3);
485	CHECK_RV( rv, "Read CRC 16");
486
487	return i;
488	}
489
490	static int sd_card_write( sd_card_driver_entry e, uint8_t start_token, uint8_t out, int n)
491	{
492	int rv = 0;
493	uint8_t crc16 [2] = { 0, 0 };
494
495	/* Data output index */
496	int o = 0;
497
498	/* Wait until card is not busy */
499	rv = sd_card_wait( e);
500	CHECK_RV( rv, "Wait");
501
502	/* Write data start token */
503	rv = rtems_libi2c_write_bytes( e->minor, &start_token, 1);
504	CHECK_RV( rv, "Write data start token");
505
506	/* Write data */
507	o = rtems_libi2c_write_bytes( e->minor, out, n);
508	CHECK_RV( o, "Write data");
509
510	/* Write CRC 16 */
511	rv = rtems_libi2c_write_bytes( e->minor, crc16, 2);
512	CHECK_RV( rv, "Write CRC 16");
513
514	/* Read data response */
515	rv = sd_card_query( e, e->response, 2);
516	CHECK_RV( rv, "Read data response");
517	if (SD_CARD_IS_DATA_REJECTED( e->response [0])) {
518	SYSLOG_ERROR( "Data rejected: 0x%02" PRIx8 "\n", e->response [0]);
519	return -RTEMS_IO_ERROR;
520	}
521
522	/* Card is now busy */
523	e->busy = true;
524
525	return o;
526	}
527
528	static inline rtems_status_code sd_card_start( sd_card_driver_entry *e)
529	{
530	rtems_status_code sc = RTEMS_SUCCESSFUL;
531	int rv = 0;
532
533	sc = rtems_libi2c_send_start( e->minor);
534	CHECK_SC( sc, "Send start");
535
536	rv = rtems_libi2c_ioctl( e->minor, RTEMS_LIBI2C_IOCTL_SET_TFRMODE, &e->transfer_mode);
537	CHECK_RVSC( rv, "Set transfer mode");
538
539	sc = rtems_libi2c_send_addr( e->minor, 1);
540	CHECK_SC( sc, "Send address");
541
542	return RTEMS_SUCCESSFUL;
543	}
544
545	static inline rtems_status_code sd_card_stop( sd_card_driver_entry *e)
546	{
547	rtems_status_code sc = RTEMS_SUCCESSFUL;
548
549	sc = rtems_libi2c_send_stop( e->minor);
550	CHECK_SC( sc, "Send stop");
551
552	return RTEMS_SUCCESSFUL;
553	}
554	/** @} */
555
556	/**
557	* @name Disk Driver Functions
558	* @{
559	*/
560
561	static int sd_card_disk_block_read( sd_card_driver_entry e, rtems_blkdev_request r)
562	{
563	rtems_status_code sc = RTEMS_SUCCESSFUL;
564	int rv = 0;
565	uint32_t start_address = r->start << e->block_size_shift;
566	uint32_t i = 0;
567
568	DEBUG_PRINT( "start = %u, count = %u, bufnum = %u\n", r->start, r->count, r->bufnum);
569
570	#ifdef DEBUG
571	/* Check request */
572	if (r->count != r->bufnum) {
573	SYSLOG_ERROR( "Block count and buffer number are not equal");
574	return -RTEMS_INTERNAL_ERROR;
575	} else if (r->start >= e->block_number) {
576	SYSLOG_ERROR( "Start block number out of range");
577	return -RTEMS_INTERNAL_ERROR;
578	} else if (r->count > e->block_number - r->start) {
579	SYSLOG_ERROR( "Block count out of range");
580	return -RTEMS_INTERNAL_ERROR;
581	}
582	#endif /* DEBUG */
583
584	/* Start */
585	sc = sd_card_start( e);
586	CLEANUP_SCRV( sc, rv, sd_card_disk_block_read_cleanup, "Start");
587
588	if (r->count == 1) {
589	#ifdef DEBUG
590	/* Check buffer */
591	if (r->bufs [0].length != e->block_size) {
592	DO_CLEANUP_RV( -RTEMS_INTERNAL_ERROR, rv, sd_card_disk_block_read_cleanup, "Buffer and disk block size are not equal");
593	}
594	DEBUG_PRINT( "[%02u]: buffer = 0x%08x, size = %u\n", 0, r->bufs [0].buffer, r->bufs [0].length);
595	#endif /* DEBUG */
596
597	/* Single block read */
598	rv = sd_card_send_command( e, SD_CARD_CMD_READ_SINGLE_BLOCK, start_address);
599	CLEANUP_RV( rv, sd_card_disk_block_read_cleanup, "Send: SD_CARD_CMD_READ_SINGLE_BLOCK");
600	rv = sd_card_read( e, SD_CARD_START_BLOCK_SINGLE_BLOCK_READ, (uint8_t *) r->bufs [0].buffer, e->block_size);
601	CLEANUP_RV( rv, sd_card_disk_block_read_cleanup, "Read: SD_CARD_CMD_READ_SINGLE_BLOCK");
602	} else {
603	/* Start multiple block read */
604	rv = sd_card_send_command( e, SD_CARD_CMD_READ_MULTIPLE_BLOCK, start_address);
605	CLEANUP_RV( rv, sd_card_disk_block_read_stop_cleanup, "Send: SD_CARD_CMD_READ_MULTIPLE_BLOCK");
606
607	/* Multiple block read */
608	for (i = 0; i < r->count; ++i) {
609	#ifdef DEBUG
610	/* Check buffer */
611	if (r->bufs [i].length != e->block_size) {
612	DO_CLEANUP_RV( -RTEMS_INTERNAL_ERROR, rv, sd_card_disk_block_read_stop_cleanup, "Buffer and disk block size are not equal");
613	}
614	DEBUG_PRINT( "[%02u]: buffer = 0x%08x, size = %u\n", i, r->bufs [i].buffer, r->bufs [i].length);
615	#endif /* DEBUG */
616
617	rv = sd_card_read( e, SD_CARD_START_BLOCK_MULTIPLE_BLOCK_READ, (uint8_t *) r->bufs [i].buffer, e->block_size);
618	CLEANUP_RV( rv, sd_card_disk_block_read_stop_cleanup, "Read block");
619	}
620
621	/* Stop multiple block read */
622	rv = sd_card_stop_multiple_block_read( e);
623	CLEANUP_RV( rv, sd_card_disk_block_read_cleanup, "Stop multiple block read");
624	}
625
626	/* Stop */
627	sc = sd_card_stop( e);
628	CHECK_SCRV( sc, "Stop");
629
630	/* Done */
631	r->req_done( r->done_arg, RTEMS_SUCCESSFUL, 0);
632
633	return 0;
634
635	sd_card_disk_block_read_stop_cleanup:
636
637	/* Stop multiple block read */
638	sd_card_stop_multiple_block_read( e);
639
640	sd_card_disk_block_read_cleanup:
641
642	/* Stop */
643	sd_card_stop( e);
644
645	/* Done */
646	r->req_done( r->done_arg, RTEMS_IO_ERROR, 0);
647
648	return rv;
649	}
650
651	static int sd_card_disk_block_write( sd_card_driver_entry e, rtems_blkdev_request r)
652	{
653	rtems_status_code sc = RTEMS_SUCCESSFUL;
654	int rv = 0;
655	uint32_t start_address = r->start << e->block_size_shift;
656	uint32_t i = 0;
657
658	DEBUG_PRINT( "start = %u, count = %u, bufnum = %u\n", r->start, r->count, r->bufnum);
659
660	#ifdef DEBUG
661	/* Check request */
662	if (r->count != r->bufnum) {
663	SYSLOG_ERROR( "Block count and buffer number are not equal");
664	return -RTEMS_INTERNAL_ERROR;
665	} else if (r->start >= e->block_number) {
666	SYSLOG_ERROR( "Start block number out of range");
667	return -RTEMS_INTERNAL_ERROR;
668	} else if (r->count > e->block_number - r->start) {
669	SYSLOG_ERROR( "Block count out of range");
670	return -RTEMS_INTERNAL_ERROR;
671	}
672	#endif /* DEBUG */
673
674	/* Start */
675	sc = sd_card_start( e);
676	CLEANUP_SCRV( sc, rv, sd_card_disk_block_write_cleanup, "Start");
677
678	if (r->count == 1) {
679	#ifdef DEBUG
680	/* Check buffer */
681	if (r->bufs [0].length != e->block_size) {
682	DO_CLEANUP_RV( -RTEMS_INTERNAL_ERROR, rv, sd_card_disk_block_write_cleanup, "Buffer and disk block size are not equal");
683	}
684	DEBUG_PRINT( "[%02u]: buffer = 0x%08x, size = %u\n", 0, r->bufs [0].buffer, r->bufs [0].length);
685	#endif /* DEBUG */
686
687	/* Single block write */
688	rv = sd_card_send_command( e, SD_CARD_CMD_WRITE_BLOCK, start_address);
689	CLEANUP_RV( rv, sd_card_disk_block_write_cleanup, "Send: SD_CARD_CMD_WRITE_BLOCK");
690	rv = sd_card_write( e, SD_CARD_START_BLOCK_SINGLE_BLOCK_WRITE, (uint8_t *) r->bufs [0].buffer, e->block_size);
691	CLEANUP_RV( rv, sd_card_disk_block_write_cleanup, "Write: SD_CARD_CMD_WRITE_BLOCK");
692	} else {
693	/* Start multiple block write */
694	rv = sd_card_send_command( e, SD_CARD_CMD_WRITE_MULTIPLE_BLOCK, start_address);
695	CLEANUP_RV( rv, sd_card_disk_block_write_stop_cleanup, "Send: SD_CARD_CMD_WRITE_MULTIPLE_BLOCK");
696
697	/* Multiple block write */
698	for (i = 0; i < r->count; ++i) {
699	#ifdef DEBUG
700	/* Check buffer */
701	if (r->bufs [i].length != e->block_size) {
702	DO_CLEANUP_RV( -RTEMS_INTERNAL_ERROR, rv, sd_card_disk_block_write_stop_cleanup, "Buffer and disk block size are not equal");
703	}
704	DEBUG_PRINT( "[%02u]: buffer = 0x%08x, size = %u\n", i, r->bufs [i].buffer, r->bufs [i].length);
705	#endif /* DEBUG */
706
707	rv = sd_card_write( e, SD_CARD_START_BLOCK_MULTIPLE_BLOCK_WRITE, (uint8_t *) r->bufs [i].buffer, e->block_size);
708	CLEANUP_RV( rv, sd_card_disk_block_write_stop_cleanup, "Write block");
709	}
710
711	/* Stop multiple block write */
712	rv = sd_card_stop_multiple_block_write( e);
713	CLEANUP_RV( rv, sd_card_disk_block_write_cleanup, "Stop multiple block write");
714	}
715
716	/* Get card status */
717	rv = sd_card_send_command( e, SD_CARD_CMD_SEND_STATUS, 0);
718	CHECK_RV( rv, "Send: SD_CARD_CMD_SEND_STATUS");
719
720	/* Stop */
721	sc = sd_card_stop( e);
722	CHECK_SCRV( sc, "Stop");
723
724	/* Done */
725	r->req_done( r->done_arg, RTEMS_SUCCESSFUL, 0);
726
727	return 0;
728
729	sd_card_disk_block_write_stop_cleanup:
730
731	/* Stop multiple block write */
732	sd_card_stop_multiple_block_write( e);
733
734	sd_card_disk_block_write_cleanup:
735
736	/* Get card status */
737	rv = sd_card_send_command( e, SD_CARD_CMD_SEND_STATUS, 0);
738	CHECK_RV( rv, "Send: SD_CARD_CMD_SEND_STATUS");
739
740	/* Stop */
741	sd_card_stop( e);
742
743	/* Done */
744	r->req_done( r->done_arg, RTEMS_IO_ERROR, 0);
745
746	return rv;
747	}
748
749	static int sd_card_disk_ioctl( dev_t dev, uint32_t req, void *arg)
750	{
751	DEBUG_PRINT( "dev = %u, req = %u, arg = 0x08%x\n", dev, req, arg);
752	if (req == RTEMS_BLKIO_REQUEST) {
753	rtems_device_minor_number minor = rtems_filesystem_dev_minor_t( dev);
754	sd_card_driver_entry *e = &sd_card_driver_table [minor];
755	rtems_blkdev_request r = (rtems_blkdev_request ) arg;
756	switch (r->req) {
757	case RTEMS_BLKDEV_REQ_READ:
758	return sd_card_disk_block_read( e, r);
759	case RTEMS_BLKDEV_REQ_WRITE:
760	return sd_card_disk_block_write( e, r);
761	default:
762	errno = EBADRQC;
763	return -1;
764	}
765	} else {
766	errno = EBADRQC;
767	return -1;
768	}
769	}
770
771	static rtems_status_code sd_card_disk_init( rtems_device_major_number major, rtems_device_minor_number minor, void *arg)
772	{
773	/* Do nothing */
774
775	return RTEMS_SUCCESSFUL;
776	}
777
778	/** @} */
779
780	static const rtems_driver_address_table sd_card_disk_ops = {
781	.initialization_entry = sd_card_disk_init,
782	.open_entry = NULL,
783	.close_entry = NULL,
784	.read_entry = NULL,
785	.write_entry = NULL,
786	.control_entry = NULL
787	};
788
789	static rtems_device_major_number sd_card_disk_major = 0;
790
791	static int sd_card_driver_first = 1;
792
793	/**
794	* @name LibI2C Driver Functions
795	* @{
796	*/
797
798	static inline int sd_card_driver_get_entry( rtems_device_minor_number minor, sd_card_driver_entry **e)
799	{
800	return rtems_libi2c_ioctl( minor, RTEMS_LIBI2C_IOCTL_GET_DRV_T, e);
801	}
802
803	static rtems_status_code sd_card_driver_init( rtems_device_major_number major, rtems_device_minor_number minor, void *arg)
804	{
805	rtems_status_code sc = RTEMS_SUCCESSFUL;
806	int rv = 0;
807	sd_card_driver_entry *e = NULL;
808	uint8_t block [SD_CARD_BLOCK_SIZE_DEFAULT];
809	uint32_t transfer_speed = 0;
810	uint32_t read_block_size = 0;
811	uint32_t write_block_size = 0;
812	dev_t dev = 0;
813
814	/* Get driver entry */
815	rv = sd_card_driver_get_entry( minor, &e);
816	CHECK_RVSC( rv, "Get driver entry");
817
818	/* Start */
819	sc = sd_card_start( e);
820	CLEANUP_SC( sc, sd_card_driver_init_cleanup, "Start");
821
822	/* Save minor number for disk operations */
823	e->minor = minor;
824
825	/* Register disk driver */
826	if (sd_card_driver_first) {
827	sd_card_driver_first = 0;
828	sc = rtems_io_register_driver( 0, &sd_card_disk_ops, &sd_card_disk_major);
829	CLEANUP_SC( sc, sd_card_driver_init_cleanup, "Register disk IO driver");
830	}
831
832	/* Wait until card is not busy */
833	rv = sd_card_wait( e);
834	CLEANUP_RVSC( rv, sc, sd_card_driver_init_cleanup, "Wait");
835
836	/* Send idle tokens for at least 74 clock cycles with active chip select */
837	memset( block, SD_CARD_IDLE_TOKEN, SD_CARD_BLOCK_SIZE_DEFAULT);
838	rv = rtems_libi2c_write_bytes( e->minor, block, SD_CARD_BLOCK_SIZE_DEFAULT);
839	CLEANUP_RVSC( rv, sc, sd_card_driver_init_cleanup, "Active chip select delay");
840
841	/* Stop */
842	sc = sd_card_stop( e);
843	CHECK_SC( sc, "Stop");
844
845	/* Start with inactive chip select */
846	sc = rtems_libi2c_send_start( e->minor);
847	CHECK_SC( sc, "Send start");
848
849	/* Set transfer mode */
850	rv = rtems_libi2c_ioctl( e->minor, RTEMS_LIBI2C_IOCTL_SET_TFRMODE, &e->transfer_mode);
851	CLEANUP_RVSC( rv, sc, sd_card_driver_init_cleanup, "Set transfer mode");
852
853	/* Send idle tokens with inactive chip select */
854	rv = sd_card_query( e, e->response, SD_CARD_COMMAND_SIZE);
855	CLEANUP_RVSC( rv, sc, sd_card_driver_init_cleanup, "Inactive chip select delay");
856
857	/* Activate chip select */
858	sc = rtems_libi2c_send_addr( e->minor, 1);
859	CLEANUP_SC( sc, sd_card_driver_init_cleanup, "Send address");
860
861	/* Stop multiple block write */
862	sd_card_stop_multiple_block_write( e);
863
864	/* Get card status */
865	sd_card_send_command( e, SD_CARD_CMD_SEND_STATUS, 0);
866
867	/* Stop multiple block read */
868	sd_card_stop_multiple_block_read( e);
869
870	/* Switch to SPI mode */
871	rv = sd_card_send_command( e, SD_CARD_CMD_GO_IDLE_STATE, 0);
872	CLEANUP_RVSC( rv, sc, sd_card_driver_init_cleanup, "Send: SD_CARD_CMD_GO_IDLE_STATE");
873
874	/* Initialize card */
875	while (1) {
876	rv = sd_card_send_command( e, SD_CARD_CMD_APP_CMD, 0);
877	CLEANUP_RVSC( rv, sc, sd_card_driver_init_cleanup, "Send: SD_CARD_CMD_APP_CMD");
878	rv = sd_card_send_command( e, SD_CARD_ACMD_SD_SEND_OP_COND, 0);
879	CLEANUP_RVSC( rv, sc, sd_card_driver_init_cleanup, "Send: SD_CARD_ACMD_SD_SEND_OP_COND");
880
881	/* Not idle? */
882	if (SD_CARD_IS_NOT_IDLE_RESPONSE( e->response [e->response_index])) {
883	break;
884	}
885
886	/* Invoke the scheduler */
887	rtems_task_wake_after( RTEMS_YIELD_PROCESSOR);
888	};
889
890	/* Card Identification */
891	if (e->verbose) {
892	rv = sd_card_send_command( e, SD_CARD_CMD_SEND_CID, 0);
893	CLEANUP_RVSC( rv, sc, sd_card_driver_init_cleanup, "Send: SD_CARD_CMD_SEND_CID");
894	rv = sd_card_read( e, SD_CARD_START_BLOCK_SINGLE_BLOCK_READ, block, SD_CARD_CID_SIZE);
895	CLEANUP_RVSC( rv, sc, sd_card_driver_init_cleanup, "Read: SD_CARD_CMD_SEND_CID");
896	SYSLOG( "* Card Identification *\n");
897	SYSLOG( "Manufacturer ID : %" PRIu8 "\n", SD_CARD_CID_GET_MID( block));
898	SYSLOG( "OEM/Application ID : %" PRIu16 "\n", SD_CARD_CID_GET_OID( block));
899	SYSLOG(
900	"Product name : %c%c%c%c%c%c\n",
901	SD_CARD_CID_GET_PNM( block, 0),
902	SD_CARD_CID_GET_PNM( block, 1),
903	SD_CARD_CID_GET_PNM( block, 2),
904	SD_CARD_CID_GET_PNM( block, 3),
905	SD_CARD_CID_GET_PNM( block, 4),
906	SD_CARD_CID_GET_PNM( block, 5)
907	);
908	SYSLOG( "Product revision : %" PRIu8 "\n", SD_CARD_CID_GET_PRV( block));
909	SYSLOG( "Product serial number : %" PRIu32 "\n", SD_CARD_CID_GET_PSN( block));
910	SYSLOG( "Manufacturing date : %" PRIu8 "\n", SD_CARD_CID_GET_MDT( block));
911	SYSLOG( "7-bit CRC checksum : %" PRIu8 "\n", SD_CARD_CID_GET_CRC7( block));
912	}
913
914	/* Card Specific Data */
915	rv = sd_card_send_command( e, SD_CARD_CMD_SEND_CSD, 0);
916	CLEANUP_RVSC( rv, sc, sd_card_driver_init_cleanup, "Send: SD_CARD_CMD_SEND_CSD");
917	rv = sd_card_read( e, SD_CARD_START_BLOCK_SINGLE_BLOCK_READ, block, SD_CARD_CSD_SIZE);
918	CLEANUP_RVSC( rv, sc, sd_card_driver_init_cleanup, "Read: SD_CARD_CMD_SEND_CSD");
919	transfer_speed = sd_card_transfer_speed( block);
920	e->transfer_mode.baudrate = transfer_speed;
921	e->n_ac_max = sd_card_max_access_time( block, transfer_speed);
922	read_block_size = 1 << SD_CARD_CSD_GET_READ_BLK_LEN( block);
923	e->block_size_shift = SD_CARD_CSD_GET_READ_BLK_LEN( block);
924	write_block_size = 1 << e->block_size_shift;
925	if (read_block_size < write_block_size) {
926	SYSLOG_ERROR( "Read block size smaller than write block size\n");
927	return -RTEMS_IO_ERROR;
928	}
929	e->block_size = write_block_size;
930	e->block_number = sd_card_block_number( block);
931	if (e->verbose) {
932	SYSLOG( "* Card Specific Data *\n");
933	SYSLOG( "CSD structure : %" PRIu8 "\n", SD_CARD_CSD_GET_CSD_STRUCTURE( block));
934	SYSLOG( "Spec version : %" PRIu8 "\n", SD_CARD_CSD_GET_SPEC_VERS( block));
935	SYSLOG( "Access time [ns] : %" PRIu32 "\n", sd_card_access_time( block));
936	SYSLOG( "Max access time [N] : %" PRIu32 "\n", e->n_ac_max);
937	SYSLOG( "Max read block size [B] : %" PRIu32 "\n", read_block_size);
938	SYSLOG( "Max write block size [B] : %" PRIu32 "\n", write_block_size);
939	SYSLOG( "Block size [B] : %" PRIu32 "\n", e->block_size);
940	SYSLOG( "Block number : %" PRIu32 "\n", e->block_number);
941	SYSLOG( "Capacity [B] : %" PRIu32 "\n", sd_card_capacity( block));
942	SYSLOG( "Max transfer speed [b/s] : %" PRIu32 "\n", transfer_speed);
943	}
944
945	/* Set read block size */
946	rv = sd_card_send_command( e, SD_CARD_CMD_SET_BLOCKLEN, e->block_size);
947	CLEANUP_RVSC( rv, sc, sd_card_driver_init_cleanup, "Send: SD_CARD_CMD_SET_BLOCKLEN");
948
949	/* Create disk device */
950	dev = rtems_filesystem_make_dev_t( sd_card_disk_major, e->table_index);
951	sc = rtems_disk_io_initialize();
952	CLEANUP_SC( sc, sd_card_driver_init_cleanup, "Initialize RTEMS disk IO");
953	sc = rtems_disk_create_phys( dev, e->block_size, e->block_number, sd_card_disk_ioctl, e->disk_device_name);
954	CLEANUP_SC( sc, sd_card_driver_init_cleanup, "Create disk device");
955
956	/* Stop */
957	sc = sd_card_stop( e);
958	CHECK_SC( sc, "Stop");
959
960	return RTEMS_SUCCESSFUL;
961
962	sd_card_driver_init_cleanup:
963
964	/* Stop */
965	sd_card_stop( e);
966
967	return sc;
968	}
969
970	static rtems_status_code sd_card_driver_read( rtems_device_major_number major, rtems_device_minor_number minor, void *arg)
971	{
972	rtems_status_code sc = RTEMS_SUCCESSFUL;
973	int rv = 0;
974	rtems_libio_rw_args_t rw = (rtems_libio_rw_args_t ) arg;
975	sd_card_driver_entry *e = NULL;
976	uint32_t block_size_mask = 0;
977	uint32_t block_count = 0;
978	uint32_t start_block = 0;
979	uint32_t i = 0;
980
981	/* Clear moved bytes counter */
982	rw->bytes_moved = 0;
983
984	/* Get driver entry */
985	rv = sd_card_driver_get_entry( minor, &e);
986	CHECK_RVSC( rv, "Get driver entry");
987
988	/* Start */
989	sc = sd_card_start( e);
990	CLEANUP_SC( sc, sd_card_driver_read_cleanup, "Start");
991
992	/* Check arguments */
993	block_size_mask = e->block_size - 1;
994	block_count = rw->count >> e->block_size_shift;
995	start_block = rw->offset >> e->block_size_shift;
996	if (rw->offset & block_size_mask) {
997	DO_CLEANUP_SC( RTEMS_INVALID_ADDRESS, sc, sd_card_driver_read_cleanup, "Invalid offset");
998	} else if ((rw->count & block_size_mask) \|\| (start_block >= e->block_number) \|\| (block_count > e->block_number - start_block)) {
999	DO_CLEANUP_SC( RTEMS_INVALID_NUMBER, sc, sd_card_driver_read_cleanup, "Invalid count or out of range");
1000	}
1001
1002	if (block_count == 0) {
1003	/* Do nothing */
1004	} else if (block_count == 1) {
1005	/* Single block read */
1006	rv = sd_card_send_command( e, SD_CARD_CMD_READ_SINGLE_BLOCK, rw->offset);
1007	CLEANUP_RVSC( rv, sc, sd_card_driver_read_cleanup, "Send: SD_CARD_CMD_READ_SINGLE_BLOCK");
1008	rv = sd_card_read( e, SD_CARD_START_BLOCK_SINGLE_BLOCK_READ, (uint8_t *) rw->buffer, e->block_size);
1009	CLEANUP_RVSC( rv, sc, sd_card_driver_read_cleanup, "Read: SD_CARD_CMD_READ_SINGLE_BLOCK");
1010
1011	/* Set moved bytes counter */
1012	rw->bytes_moved = rv;
1013	} else {
1014	/* Start multiple block read */
1015	rv = sd_card_send_command( e, SD_CARD_CMD_READ_MULTIPLE_BLOCK, rw->offset);
1016	CLEANUP_RVSC( rv, sc, sd_card_driver_read_stop_cleanup, "Send: SD_CARD_CMD_READ_MULTIPLE_BLOCK");
1017
1018	/* Multiple block read */
1019	for (i = 0; i < block_count; ++i) {
1020	rv = sd_card_read( e, SD_CARD_START_BLOCK_MULTIPLE_BLOCK_READ, (uint8_t *) rw->buffer + (i << e->block_size_shift), e->block_size);
1021	CLEANUP_RVSC( rv, sc, sd_card_driver_read_stop_cleanup, "Read block");
1022
1023	/* Update moved bytes counter */
1024	rw->bytes_moved += rv;
1025	}
1026
1027	/* Stop multiple block read */
1028	rv = sd_card_stop_multiple_block_read( e);
1029	CLEANUP_RVSC( rv, sc, sd_card_driver_read_cleanup, "Stop multiple block read");
1030	}
1031
1032	/* Stop */
1033	sc = sd_card_stop( e);
1034	CHECK_SC( sc, "Stop");
1035
1036	return RTEMS_SUCCESSFUL;
1037
1038	sd_card_driver_read_stop_cleanup:
1039
1040	/* Stop multiple block read */
1041	sd_card_stop_multiple_block_read( e);
1042
1043	sd_card_driver_read_cleanup:
1044
1045	/* Stop */
1046	sd_card_stop( e);
1047
1048	return sc;
1049	}
1050
1051	static rtems_status_code sd_card_driver_write( rtems_device_major_number major, rtems_device_minor_number minor, void *arg)
1052	{
1053	rtems_status_code sc = RTEMS_SUCCESSFUL;
1054	int rv = 0;
1055	rtems_libio_rw_args_t rw = (rtems_libio_rw_args_t ) arg;
1056	sd_card_driver_entry *e = NULL;
1057	uint32_t block_size_mask = 0;
1058	uint32_t block_count = 0;
1059	uint32_t start_block = 0;
1060	uint32_t i = 0;
1061
1062	/* Clear moved bytes counter */
1063	rw->bytes_moved = 0;
1064
1065	/* Get driver entry */
1066	rv = sd_card_driver_get_entry( minor, &e);
1067	CHECK_RVSC( rv, "Get driver entry");
1068
1069	/* Start */
1070	sc = sd_card_start( e);
1071	CLEANUP_SC( sc, sd_card_driver_write_cleanup, "Start");
1072
1073	/* Check arguments */
1074	block_size_mask = e->block_size - 1;
1075	block_count = rw->count >> e->block_size_shift;
1076	start_block = rw->offset >> e->block_size_shift;
1077	if (rw->offset & block_size_mask) {
1078	DO_CLEANUP_SC( RTEMS_INVALID_ADDRESS, sc, sd_card_driver_write_cleanup, "Invalid offset");
1079	} else if ((rw->count & block_size_mask) \|\| (start_block >= e->block_number) \|\| (block_count > e->block_number - start_block)) {
1080	DO_CLEANUP_SC( RTEMS_INVALID_NUMBER, sc, sd_card_driver_write_cleanup, "Invalid count or out of range");
1081	}
1082
1083	if (block_count == 0) {
1084	/* Do nothing */
1085	} else if (block_count == 1) {
1086	/* Single block write */
1087	rv = sd_card_send_command( e, SD_CARD_CMD_WRITE_BLOCK, rw->offset);
1088	CLEANUP_RVSC( rv, sc, sd_card_driver_write_cleanup, "Send: SD_CARD_CMD_WRITE_BLOCK");
1089	rv = sd_card_write( e, SD_CARD_START_BLOCK_SINGLE_BLOCK_WRITE, (uint8_t *) rw->buffer, e->block_size);
1090	CLEANUP_RVSC( rv, sc, sd_card_driver_write_cleanup, "Write: SD_CARD_CMD_WRITE_BLOCK");
1091
1092	/* Set moved bytes counter */
1093	rw->bytes_moved = rv;
1094	} else {
1095	/* Start multiple block write */
1096	rv = sd_card_send_command( e, SD_CARD_CMD_WRITE_MULTIPLE_BLOCK, rw->offset);
1097	CLEANUP_RVSC( rv, sc, sd_card_driver_write_stop_cleanup, "Send: SD_CARD_CMD_WRITE_MULTIPLE_BLOCK");
1098
1099	/* Multiple block write */
1100	for (i = 0; i < block_count; ++i) {
1101	rv = sd_card_write( e, SD_CARD_START_BLOCK_MULTIPLE_BLOCK_WRITE, (uint8_t *) rw->buffer + (i << e->block_size_shift), e->block_size);
1102	CLEANUP_RVSC( rv, sc, sd_card_driver_write_stop_cleanup, "Write: SD_CARD_CMD_WRITE_MULTIPLE_BLOCK");
1103
1104	/* Update moved bytes counter */
1105	rw->bytes_moved += rv;
1106	}
1107
1108	/* Stop multiple block write */
1109	rv = sd_card_stop_multiple_block_write( e);
1110	CLEANUP_RVSC( rv, sc, sd_card_driver_write_cleanup, "Stop multiple block write");
1111	}
1112
1113	/* Get card status */
1114	rv = sd_card_send_command( e, SD_CARD_CMD_SEND_STATUS, 0);
1115	CHECK_RV( rv, "Send: SD_CARD_CMD_SEND_STATUS");
1116
1117	/* Stop */
1118	sc = sd_card_stop( e);
1119	CHECK_SC( sc, "Stop");
1120
1121	return RTEMS_SUCCESSFUL;
1122
1123	sd_card_driver_write_stop_cleanup:
1124
1125	/* Stop multiple block write */
1126	sd_card_stop_multiple_block_write( e);
1127
1128	sd_card_driver_write_cleanup:
1129
1130	/* Get card status */
1131	rv = sd_card_send_command( e, SD_CARD_CMD_SEND_STATUS, 0);
1132	CHECK_RV( rv, "Send: SD_CARD_CMD_SEND_STATUS");
1133
1134	/* Stop */
1135	sd_card_stop( e);
1136
1137	return sc;
1138	}
1139
1140	/** @} */
1141
1142	const rtems_driver_address_table sd_card_driver_ops = {
1143	.initialization_entry = sd_card_driver_init,
1144	.open_entry = NULL,
1145	.close_entry = NULL,
1146	.read_entry = sd_card_driver_read,
1147	.write_entry = sd_card_driver_write,
1148	.control_entry = NULL
1149	};

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