From 9814d2ddef3fd57490fb62cb2e0640268eac523f Mon Sep 17 00:00:00 2001 From: Thomas Doerfler Date: Tue, 23 Dec 2008 08:31:47 +0000 Subject: spi-sd-card.c, spi-sd-card.h: removed high-level driver IF, added generic block I/O functions --- c/src/ChangeLog | 5 + c/src/libchip/i2c/spi-sd-card.c | 566 +++++++++++++--------------------------- c/src/libchip/i2c/spi-sd-card.h | 11 +- 3 files changed, 197 insertions(+), 385 deletions(-) (limited to 'c') diff --git a/c/src/ChangeLog b/c/src/ChangeLog index 536eb07a68..b525656e4a 100644 --- a/c/src/ChangeLog +++ b/c/src/ChangeLog @@ -1,3 +1,8 @@ +2008-11-23 Sebastian Huber + + * libchip/i2c/spi-sd-card.h, libchip/i2c/spi-sd-card.c: Removed high + level LibI2C interface. Added generic block IO functions. + 2008-12-22 Ralf Corsépius * optman/rtems/no-barrier.c, optman/rtems/no-dpmem.c, diff --git a/c/src/libchip/i2c/spi-sd-card.c b/c/src/libchip/i2c/spi-sd-card.c index f662a01939..bf2cf25b09 100644 --- a/c/src/libchip/i2c/spi-sd-card.c +++ b/c/src/libchip/i2c/spi-sd-card.c @@ -297,7 +297,7 @@ static inline uint32_t sd_card_max_access_time( const uint8_t *csd, uint32_t tra static inline int sd_card_query( sd_card_driver_entry *e, uint8_t *in, int n) { - return rtems_libi2c_read_bytes( e->minor, in, n); + return rtems_libi2c_read_bytes( e->bus, in, n); } static int sd_card_wait( sd_card_driver_entry *e) @@ -346,7 +346,7 @@ static int sd_card_send_command( sd_card_driver_entry *e, uint32_t command, uint /* Write command and read response */ SD_CARD_COMMAND_SET_COMMAND( e->command, command); SD_CARD_COMMAND_SET_ARGUMENT( e->command, argument); - rv = rtems_libi2c_ioctl( e->minor, RTEMS_LIBI2C_IOCTL_READ_WRITE, &rw); + rv = rtems_libi2c_ioctl( e->bus, RTEMS_LIBI2C_IOCTL_READ_WRITE, &rw); RTEMS_CHECK_RV( rv, "Write command and read response"); /* Check respose */ @@ -388,7 +388,7 @@ static int sd_card_stop_multiple_block_read( sd_card_driver_entry *e) int rv = 0; SD_CARD_COMMAND_SET_COMMAND( e->command, SD_CARD_CMD_STOP_TRANSMISSION); - rv = rtems_libi2c_write_bytes( e->minor, e->command, SD_CARD_COMMAND_SIZE); + rv = rtems_libi2c_write_bytes( e->bus, e->command, SD_CARD_COMMAND_SIZE); RTEMS_CHECK_RV( rv, "Write stop transfer token"); return 0; @@ -404,7 +404,7 @@ static int sd_card_stop_multiple_block_write( sd_card_driver_entry *e) RTEMS_CHECK_RV( rv, "Wait"); /* Send stop token */ - rv = rtems_libi2c_write_bytes( e->minor, stop_transfer, 3); + rv = rtems_libi2c_write_bytes( e->bus, stop_transfer, 3); RTEMS_CHECK_RV( rv, "Write stop transfer token"); /* Card is now busy */ @@ -434,7 +434,7 @@ static int sd_card_read( sd_card_driver_entry *e, uint8_t start_token, uint8_t * SD_CARD_INVALIDATE_RESPONSE_INDEX( e); - while (1) { + while (true) { RTEMS_DEBUG_PRINT( "Search from %u to %u\n", r, response_size - 1); /* Search the data start token in in current response buffer */ @@ -504,15 +504,15 @@ static int sd_card_write( sd_card_driver_entry *e, uint8_t start_token, uint8_t RTEMS_CHECK_RV( rv, "Wait"); /* Write data start token */ - rv = rtems_libi2c_write_bytes( e->minor, &start_token, 1); + rv = rtems_libi2c_write_bytes( e->bus, &start_token, 1); RTEMS_CHECK_RV( rv, "Write data start token"); /* Write data */ - o = rtems_libi2c_write_bytes( e->minor, out, n); + o = rtems_libi2c_write_bytes( e->bus, out, n); RTEMS_CHECK_RV( o, "Write data"); /* Write CRC 16 */ - rv = rtems_libi2c_write_bytes( e->minor, crc16, 2); + rv = rtems_libi2c_write_bytes( e->bus, crc16, 2); RTEMS_CHECK_RV( rv, "Write CRC 16"); /* Read data response */ @@ -534,13 +534,13 @@ static inline rtems_status_code sd_card_start( sd_card_driver_entry *e) rtems_status_code sc = RTEMS_SUCCESSFUL; int rv = 0; - sc = rtems_libi2c_send_start( e->minor); + sc = rtems_libi2c_send_start( e->bus); RTEMS_CHECK_SC( sc, "Send start"); - rv = rtems_libi2c_ioctl( e->minor, RTEMS_LIBI2C_IOCTL_SET_TFRMODE, &e->transfer_mode); + rv = rtems_libi2c_ioctl( e->bus, RTEMS_LIBI2C_IOCTL_SET_TFRMODE, &e->transfer_mode); RTEMS_CHECK_RV_SC( rv, "Set transfer mode"); - sc = rtems_libi2c_send_addr( e->minor, 1); + sc = rtems_libi2c_send_addr( e->bus, 1); RTEMS_CHECK_SC( sc, "Send address"); return RTEMS_SUCCESSFUL; @@ -550,11 +550,155 @@ static inline rtems_status_code sd_card_stop( sd_card_driver_entry *e) { rtems_status_code sc = RTEMS_SUCCESSFUL; - sc = rtems_libi2c_send_stop( e->minor); + sc = rtems_libi2c_send_stop( e->bus); RTEMS_CHECK_SC( sc, "Send stop"); return RTEMS_SUCCESSFUL; } + +static rtems_status_code sd_card_init( sd_card_driver_entry *e) +{ + rtems_status_code sc = RTEMS_SUCCESSFUL; + int rv = 0; + uint8_t block [SD_CARD_BLOCK_SIZE_DEFAULT]; + uint32_t transfer_speed = 0; + uint32_t read_block_size = 0; + uint32_t write_block_size = 0; + + /* Start */ + sc = sd_card_start( e); + RTEMS_CLEANUP_SC( sc, sd_card_driver_init_cleanup, "Start"); + + /* Wait until card is not busy */ + rv = sd_card_wait( e); + RTEMS_CLEANUP_RV_SC( rv, sc, sd_card_driver_init_cleanup, "Wait"); + + /* Send idle tokens for at least 74 clock cycles with active chip select */ + memset( block, SD_CARD_IDLE_TOKEN, SD_CARD_BLOCK_SIZE_DEFAULT); + rv = rtems_libi2c_write_bytes( e->bus, block, SD_CARD_BLOCK_SIZE_DEFAULT); + RTEMS_CLEANUP_RV_SC( rv, sc, sd_card_driver_init_cleanup, "Active chip select delay"); + + /* Stop */ + sc = sd_card_stop( e); + RTEMS_CHECK_SC( sc, "Stop"); + + /* Start with inactive chip select */ + sc = rtems_libi2c_send_start( e->bus); + RTEMS_CHECK_SC( sc, "Send start"); + + /* Set transfer mode */ + rv = rtems_libi2c_ioctl( e->bus, RTEMS_LIBI2C_IOCTL_SET_TFRMODE, &e->transfer_mode); + RTEMS_CLEANUP_RV_SC( rv, sc, sd_card_driver_init_cleanup, "Set transfer mode"); + + /* Send idle tokens with inactive chip select */ + rv = sd_card_query( e, e->response, SD_CARD_COMMAND_SIZE); + RTEMS_CLEANUP_RV_SC( rv, sc, sd_card_driver_init_cleanup, "Inactive chip select delay"); + + /* Activate chip select */ + sc = rtems_libi2c_send_addr( e->bus, 1); + RTEMS_CLEANUP_SC( sc, sd_card_driver_init_cleanup, "Send address"); + + /* Stop multiple block write */ + sd_card_stop_multiple_block_write( e); + + /* Get card status */ + sd_card_send_command( e, SD_CARD_CMD_SEND_STATUS, 0); + + /* Stop multiple block read */ + sd_card_stop_multiple_block_read( e); + + /* Switch to SPI mode */ + rv = sd_card_send_command( e, SD_CARD_CMD_GO_IDLE_STATE, 0); + RTEMS_CLEANUP_RV_SC( rv, sc, sd_card_driver_init_cleanup, "Send: SD_CARD_CMD_GO_IDLE_STATE"); + + /* Initialize card */ + while (true) { + rv = sd_card_send_command( e, SD_CARD_CMD_APP_CMD, 0); + RTEMS_CLEANUP_RV_SC( rv, sc, sd_card_driver_init_cleanup, "Send: SD_CARD_CMD_APP_CMD"); + rv = sd_card_send_command( e, SD_CARD_ACMD_SD_SEND_OP_COND, 0); + RTEMS_CLEANUP_RV_SC( rv, sc, sd_card_driver_init_cleanup, "Send: SD_CARD_ACMD_SD_SEND_OP_COND"); + + /* Not idle? */ + if (SD_CARD_IS_NOT_IDLE_RESPONSE( e->response [e->response_index])) { + break; + } + + /* Invoke the scheduler */ + rtems_task_wake_after( RTEMS_YIELD_PROCESSOR); + }; + + /* Card Identification */ + if (e->verbose) { + rv = sd_card_send_command( e, SD_CARD_CMD_SEND_CID, 0); + RTEMS_CLEANUP_RV_SC( rv, sc, sd_card_driver_init_cleanup, "Send: SD_CARD_CMD_SEND_CID"); + rv = sd_card_read( e, SD_CARD_START_BLOCK_SINGLE_BLOCK_READ, block, SD_CARD_CID_SIZE); + RTEMS_CLEANUP_RV_SC( rv, sc, sd_card_driver_init_cleanup, "Read: SD_CARD_CMD_SEND_CID"); + RTEMS_SYSLOG( "*** Card Identification ***\n"); + RTEMS_SYSLOG( "Manufacturer ID : %" PRIu8 "\n", SD_CARD_CID_GET_MID( block)); + RTEMS_SYSLOG( "OEM/Application ID : %" PRIu16 "\n", SD_CARD_CID_GET_OID( block)); + RTEMS_SYSLOG( + "Product name : %c%c%c%c%c%c\n", + SD_CARD_CID_GET_PNM( block, 0), + SD_CARD_CID_GET_PNM( block, 1), + SD_CARD_CID_GET_PNM( block, 2), + SD_CARD_CID_GET_PNM( block, 3), + SD_CARD_CID_GET_PNM( block, 4), + SD_CARD_CID_GET_PNM( block, 5) + ); + RTEMS_SYSLOG( "Product revision : %" PRIu8 "\n", SD_CARD_CID_GET_PRV( block)); + RTEMS_SYSLOG( "Product serial number : %" PRIu32 "\n", SD_CARD_CID_GET_PSN( block)); + RTEMS_SYSLOG( "Manufacturing date : %" PRIu8 "\n", SD_CARD_CID_GET_MDT( block)); + RTEMS_SYSLOG( "7-bit CRC checksum : %" PRIu8 "\n", SD_CARD_CID_GET_CRC7( block)); + } + + /* Card Specific Data */ + rv = sd_card_send_command( e, SD_CARD_CMD_SEND_CSD, 0); + RTEMS_CLEANUP_RV_SC( rv, sc, sd_card_driver_init_cleanup, "Send: SD_CARD_CMD_SEND_CSD"); + rv = sd_card_read( e, SD_CARD_START_BLOCK_SINGLE_BLOCK_READ, block, SD_CARD_CSD_SIZE); + RTEMS_CLEANUP_RV_SC( rv, sc, sd_card_driver_init_cleanup, "Read: SD_CARD_CMD_SEND_CSD"); + transfer_speed = sd_card_transfer_speed( block); + e->transfer_mode.baudrate = transfer_speed; + e->n_ac_max = sd_card_max_access_time( block, transfer_speed); + read_block_size = 1U << SD_CARD_CSD_GET_READ_BLK_LEN( block); + e->block_size_shift = SD_CARD_CSD_GET_READ_BLK_LEN( block); + write_block_size = 1U << e->block_size_shift; + if (read_block_size < write_block_size) { + RTEMS_SYSLOG_ERROR( "Read block size smaller than write block size\n"); + return -RTEMS_IO_ERROR; + } + e->block_size = write_block_size; + e->block_number = sd_card_block_number( block); + if (e->verbose) { + RTEMS_SYSLOG( "*** Card Specific Data ***\n"); + RTEMS_SYSLOG( "CSD structure : %" PRIu8 "\n", SD_CARD_CSD_GET_CSD_STRUCTURE( block)); + RTEMS_SYSLOG( "Spec version : %" PRIu8 "\n", SD_CARD_CSD_GET_SPEC_VERS( block)); + RTEMS_SYSLOG( "Access time [ns] : %" PRIu32 "\n", sd_card_access_time( block)); + RTEMS_SYSLOG( "Max access time [N] : %" PRIu32 "\n", e->n_ac_max); + RTEMS_SYSLOG( "Max read block size [B] : %" PRIu32 "\n", read_block_size); + RTEMS_SYSLOG( "Max write block size [B] : %" PRIu32 "\n", write_block_size); + RTEMS_SYSLOG( "Block size [B] : %" PRIu32 "\n", e->block_size); + RTEMS_SYSLOG( "Block number : %" PRIu32 "\n", e->block_number); + RTEMS_SYSLOG( "Capacity [B] : %" PRIu32 "\n", sd_card_capacity( block)); + RTEMS_SYSLOG( "Max transfer speed [b/s] : %" PRIu32 "\n", transfer_speed); + } + + /* Set read block size */ + rv = sd_card_send_command( e, SD_CARD_CMD_SET_BLOCKLEN, e->block_size); + RTEMS_CLEANUP_RV_SC( rv, sc, sd_card_driver_init_cleanup, "Send: SD_CARD_CMD_SET_BLOCKLEN"); + + /* Stop */ + sc = sd_card_stop( e); + RTEMS_CHECK_SC( sc, "Stop"); + + return RTEMS_SUCCESSFUL; + +sd_card_driver_init_cleanup: + + /* Stop */ + sd_card_stop( e); + + return sc; +} /** @} */ /** @@ -569,11 +713,9 @@ static int sd_card_disk_block_read( sd_card_driver_entry *e, rtems_blkdev_reques uint32_t start_address = RTEMS_BLKDEV_START_BLOCK (r) << e->block_size_shift; uint32_t i = 0; - RTEMS_DEBUG_PRINT( "start = %u, bufnum = %u\n", r->start, r->bufnum); - #ifdef DEBUG /* Check request */ - if (r->bufs[0].block >= e->block_number) { + if (r->bufs[0].block >= e->block_number) { RTEMS_SYSLOG_ERROR( "Start block number out of range"); return -RTEMS_INTERNAL_ERROR; } else if (r->bufnum > e->block_number - RTEMS_BLKDEV_START_BLOCK (r)) { @@ -592,7 +734,7 @@ static int sd_card_disk_block_read( sd_card_driver_entry *e, rtems_blkdev_reques if (r->bufs [0].length != e->block_size) { RTEMS_DO_CLEANUP_RV( -RTEMS_INTERNAL_ERROR, rv, sd_card_disk_block_read_cleanup, "Buffer and disk block size are not equal"); } - RTEMS_DEBUG_PRINT( "[%02u]: buffer = 0x%08x, size = %u\n", 0, r->bufs [0].buffer, r->bufs [0].length); + RTEMS_DEBUG_PRINT( "[01:01]: buffer = 0x%08x, size = %u\n", r->bufs [0].buffer, r->bufs [0].length); #endif /* DEBUG */ /* Single block read */ @@ -612,7 +754,7 @@ static int sd_card_disk_block_read( sd_card_driver_entry *e, rtems_blkdev_reques if (r->bufs [i].length != e->block_size) { RTEMS_DO_CLEANUP_RV( -RTEMS_INTERNAL_ERROR, rv, sd_card_disk_block_read_stop_cleanup, "Buffer and disk block size are not equal"); } - RTEMS_DEBUG_PRINT( "[%02u]: buffer = 0x%08x, size = %u\n", i, r->bufs [i].buffer, r->bufs [i].length); + RTEMS_DEBUG_PRINT( "[%02u:%02u]: buffer = 0x%08x, size = %u\n", i + 1, r->bufnum, r->bufs [i].buffer, r->bufs [i].length); #endif /* DEBUG */ rv = sd_card_read( e, SD_CARD_START_BLOCK_MULTIPLE_BLOCK_READ, (uint8_t *) r->bufs [i].buffer, (int) e->block_size); @@ -656,11 +798,9 @@ static int sd_card_disk_block_write( sd_card_driver_entry *e, rtems_blkdev_reque uint32_t start_address = RTEMS_BLKDEV_START_BLOCK (r) << e->block_size_shift; uint32_t i = 0; - RTEMS_DEBUG_PRINT( "start = %u, count = %u, bufnum = %u\n", r->start, r->count, r->bufnum); - #ifdef DEBUG /* Check request */ - if (r->bufs[0].block >= e->block_number) { + if (r->bufs[0].block >= e->block_number) { RTEMS_SYSLOG_ERROR( "Start block number out of range"); return -RTEMS_INTERNAL_ERROR; } else if (r->bufnum > e->block_number - RTEMS_BLKDEV_START_BLOCK (r)) { @@ -679,7 +819,7 @@ static int sd_card_disk_block_write( sd_card_driver_entry *e, rtems_blkdev_reque if (r->bufs [0].length != e->block_size) { RTEMS_DO_CLEANUP_RV( -RTEMS_INTERNAL_ERROR, rv, sd_card_disk_block_write_cleanup, "Buffer and disk block size are not equal"); } - RTEMS_DEBUG_PRINT( "[%02u]: buffer = 0x%08x, size = %u\n", 0, r->bufs [0].buffer, r->bufs [0].length); + RTEMS_DEBUG_PRINT( "[01:01]: buffer = 0x%08x, size = %u\n", r->bufs [0].buffer, r->bufs [0].length); #endif /* DEBUG */ /* Single block write */ @@ -699,7 +839,7 @@ static int sd_card_disk_block_write( sd_card_driver_entry *e, rtems_blkdev_reque if (r->bufs [i].length != e->block_size) { RTEMS_DO_CLEANUP_RV( -RTEMS_INTERNAL_ERROR, rv, sd_card_disk_block_write_stop_cleanup, "Buffer and disk block size are not equal"); } - RTEMS_DEBUG_PRINT( "[%02u]: buffer = 0x%08x, size = %u\n", i, r->bufs [i].buffer, r->bufs [i].length); + RTEMS_DEBUG_PRINT( "[%02u:%02u]: buffer = 0x%08x, size = %u\n", i + 1, r->bufnum, r->bufs [i].buffer, r->bufs [i].length); #endif /* DEBUG */ rv = sd_card_write( e, SD_CARD_START_BLOCK_MULTIPLE_BLOCK_WRITE, (uint8_t *) r->bufs [i].buffer, (int) e->block_size); @@ -770,381 +910,49 @@ static int sd_card_disk_ioctl( dev_t dev, uint32_t req, void *arg) } static rtems_status_code sd_card_disk_init( rtems_device_major_number major, rtems_device_minor_number minor, void *arg) -{ - /* Do nothing */ - - return RTEMS_SUCCESSFUL; -} - -/** @} */ - -static const rtems_driver_address_table sd_card_disk_ops = { - .initialization_entry = sd_card_disk_init, - .open_entry = NULL, - .close_entry = NULL, - .read_entry = NULL, - .write_entry = NULL, - .control_entry = NULL -}; - -static rtems_device_major_number sd_card_disk_major = 0; - -static int sd_card_driver_first = 1; - -/** - * @name LibI2C Driver Functions - * @{ - */ - -static inline int sd_card_driver_get_entry( rtems_device_minor_number minor, sd_card_driver_entry **e) -{ - return rtems_libi2c_ioctl( minor, RTEMS_LIBI2C_IOCTL_GET_DRV_T, e); -} - -static rtems_status_code sd_card_driver_init( rtems_device_major_number major, rtems_device_minor_number minor, void *arg) { rtems_status_code sc = RTEMS_SUCCESSFUL; - int rv = 0; sd_card_driver_entry *e = NULL; - uint8_t block [SD_CARD_BLOCK_SIZE_DEFAULT]; - uint32_t transfer_speed = 0; - uint32_t read_block_size = 0; - uint32_t write_block_size = 0; dev_t dev = 0; - /* Get driver entry */ - rv = sd_card_driver_get_entry( minor, &e); - RTEMS_CHECK_RV_SC( rv, "Get driver entry"); - - /* Start */ - sc = sd_card_start( e); - RTEMS_CLEANUP_SC( sc, sd_card_driver_init_cleanup, "Start"); - - /* Save minor number for disk operations */ - e->minor = minor; - - /* Register disk driver */ - if (sd_card_driver_first) { - sd_card_driver_first = 0; - sc = rtems_io_register_driver( 0, &sd_card_disk_ops, &sd_card_disk_major); - RTEMS_CLEANUP_SC( sc, sd_card_driver_init_cleanup, "Register disk IO driver"); - } - - /* Wait until card is not busy */ - rv = sd_card_wait( e); - RTEMS_CLEANUP_RV_SC( rv, sc, sd_card_driver_init_cleanup, "Wait"); - - /* Send idle tokens for at least 74 clock cycles with active chip select */ - memset( block, SD_CARD_IDLE_TOKEN, SD_CARD_BLOCK_SIZE_DEFAULT); - rv = rtems_libi2c_write_bytes( e->minor, block, SD_CARD_BLOCK_SIZE_DEFAULT); - RTEMS_CLEANUP_RV_SC( rv, sc, sd_card_driver_init_cleanup, "Active chip select delay"); - - /* Stop */ - sc = sd_card_stop( e); - RTEMS_CHECK_SC( sc, "Stop"); - - /* Start with inactive chip select */ - sc = rtems_libi2c_send_start( e->minor); - RTEMS_CHECK_SC( sc, "Send start"); - - /* Set transfer mode */ - rv = rtems_libi2c_ioctl( e->minor, RTEMS_LIBI2C_IOCTL_SET_TFRMODE, &e->transfer_mode); - RTEMS_CLEANUP_RV_SC( rv, sc, sd_card_driver_init_cleanup, "Set transfer mode"); - - /* Send idle tokens with inactive chip select */ - rv = sd_card_query( e, e->response, SD_CARD_COMMAND_SIZE); - RTEMS_CLEANUP_RV_SC( rv, sc, sd_card_driver_init_cleanup, "Inactive chip select delay"); - - /* Activate chip select */ - sc = rtems_libi2c_send_addr( e->minor, 1); - RTEMS_CLEANUP_SC( sc, sd_card_driver_init_cleanup, "Send address"); - - /* Stop multiple block write */ - sd_card_stop_multiple_block_write( e); - - /* Get card status */ - sd_card_send_command( e, SD_CARD_CMD_SEND_STATUS, 0); - - /* Stop multiple block read */ - sd_card_stop_multiple_block_read( e); - - /* Switch to SPI mode */ - rv = sd_card_send_command( e, SD_CARD_CMD_GO_IDLE_STATE, 0); - RTEMS_CLEANUP_RV_SC( rv, sc, sd_card_driver_init_cleanup, "Send: SD_CARD_CMD_GO_IDLE_STATE"); - - /* Initialize card */ - while (1) { - rv = sd_card_send_command( e, SD_CARD_CMD_APP_CMD, 0); - RTEMS_CLEANUP_RV_SC( rv, sc, sd_card_driver_init_cleanup, "Send: SD_CARD_CMD_APP_CMD"); - rv = sd_card_send_command( e, SD_CARD_ACMD_SD_SEND_OP_COND, 0); - RTEMS_CLEANUP_RV_SC( rv, sc, sd_card_driver_init_cleanup, "Send: SD_CARD_ACMD_SD_SEND_OP_COND"); - - /* Not idle? */ - if (SD_CARD_IS_NOT_IDLE_RESPONSE( e->response [e->response_index])) { - break; - } - - /* Invoke the scheduler */ - rtems_task_wake_after( RTEMS_YIELD_PROCESSOR); - }; - - /* Card Identification */ - if (e->verbose) { - rv = sd_card_send_command( e, SD_CARD_CMD_SEND_CID, 0); - RTEMS_CLEANUP_RV_SC( rv, sc, sd_card_driver_init_cleanup, "Send: SD_CARD_CMD_SEND_CID"); - rv = sd_card_read( e, SD_CARD_START_BLOCK_SINGLE_BLOCK_READ, block, SD_CARD_CID_SIZE); - RTEMS_CLEANUP_RV_SC( rv, sc, sd_card_driver_init_cleanup, "Read: SD_CARD_CMD_SEND_CID"); - RTEMS_SYSLOG( "*** Card Identification ***\n"); - RTEMS_SYSLOG( "Manufacturer ID : %" PRIu8 "\n", SD_CARD_CID_GET_MID( block)); - RTEMS_SYSLOG( "OEM/Application ID : %" PRIu16 "\n", SD_CARD_CID_GET_OID( block)); - RTEMS_SYSLOG( - "Product name : %c%c%c%c%c%c\n", - SD_CARD_CID_GET_PNM( block, 0), - SD_CARD_CID_GET_PNM( block, 1), - SD_CARD_CID_GET_PNM( block, 2), - SD_CARD_CID_GET_PNM( block, 3), - SD_CARD_CID_GET_PNM( block, 4), - SD_CARD_CID_GET_PNM( block, 5) - ); - RTEMS_SYSLOG( "Product revision : %" PRIu8 "\n", SD_CARD_CID_GET_PRV( block)); - RTEMS_SYSLOG( "Product serial number : %" PRIu32 "\n", SD_CARD_CID_GET_PSN( block)); - RTEMS_SYSLOG( "Manufacturing date : %" PRIu8 "\n", SD_CARD_CID_GET_MDT( block)); - RTEMS_SYSLOG( "7-bit CRC checksum : %" PRIu8 "\n", SD_CARD_CID_GET_CRC7( block)); - } - - /* Card Specific Data */ - rv = sd_card_send_command( e, SD_CARD_CMD_SEND_CSD, 0); - RTEMS_CLEANUP_RV_SC( rv, sc, sd_card_driver_init_cleanup, "Send: SD_CARD_CMD_SEND_CSD"); - rv = sd_card_read( e, SD_CARD_START_BLOCK_SINGLE_BLOCK_READ, block, SD_CARD_CSD_SIZE); - RTEMS_CLEANUP_RV_SC( rv, sc, sd_card_driver_init_cleanup, "Read: SD_CARD_CMD_SEND_CSD"); - transfer_speed = sd_card_transfer_speed( block); - e->transfer_mode.baudrate = transfer_speed; - e->n_ac_max = sd_card_max_access_time( block, transfer_speed); - read_block_size = 1U << SD_CARD_CSD_GET_READ_BLK_LEN( block); - e->block_size_shift = SD_CARD_CSD_GET_READ_BLK_LEN( block); - write_block_size = 1U << e->block_size_shift; - if (read_block_size < write_block_size) { - RTEMS_SYSLOG_ERROR( "Read block size smaller than write block size\n"); - return -RTEMS_IO_ERROR; - } - e->block_size = write_block_size; - e->block_number = sd_card_block_number( block); - if (e->verbose) { - RTEMS_SYSLOG( "*** Card Specific Data ***\n"); - RTEMS_SYSLOG( "CSD structure : %" PRIu8 "\n", SD_CARD_CSD_GET_CSD_STRUCTURE( block)); - RTEMS_SYSLOG( "Spec version : %" PRIu8 "\n", SD_CARD_CSD_GET_SPEC_VERS( block)); - RTEMS_SYSLOG( "Access time [ns] : %" PRIu32 "\n", sd_card_access_time( block)); - RTEMS_SYSLOG( "Max access time [N] : %" PRIu32 "\n", e->n_ac_max); - RTEMS_SYSLOG( "Max read block size [B] : %" PRIu32 "\n", read_block_size); - RTEMS_SYSLOG( "Max write block size [B] : %" PRIu32 "\n", write_block_size); - RTEMS_SYSLOG( "Block size [B] : %" PRIu32 "\n", e->block_size); - RTEMS_SYSLOG( "Block number : %" PRIu32 "\n", e->block_number); - RTEMS_SYSLOG( "Capacity [B] : %" PRIu32 "\n", sd_card_capacity( block)); - RTEMS_SYSLOG( "Max transfer speed [b/s] : %" PRIu32 "\n", transfer_speed); - } - - /* Set read block size */ - rv = sd_card_send_command( e, SD_CARD_CMD_SET_BLOCKLEN, e->block_size); - RTEMS_CLEANUP_RV_SC( rv, sc, sd_card_driver_init_cleanup, "Send: SD_CARD_CMD_SET_BLOCKLEN"); - - /* Create disk device */ - dev = rtems_filesystem_make_dev_t( sd_card_disk_major, (rtems_device_minor_number) e->table_index); + /* Initialize disk IO */ sc = rtems_disk_io_initialize(); - RTEMS_CLEANUP_SC( sc, sd_card_driver_init_cleanup, "Initialize RTEMS disk IO"); - sc = rtems_disk_create_phys( dev, (int) e->block_size, (int) e->block_number, sd_card_disk_ioctl, e->disk_device_name); - RTEMS_CLEANUP_SC( sc, sd_card_driver_init_cleanup, "Create disk device"); - - /* Stop */ - sc = sd_card_stop( e); - RTEMS_CHECK_SC( sc, "Stop"); + RTEMS_CHECK_SC( sc, "Initialize RTEMS disk IO"); - return RTEMS_SUCCESSFUL; - -sd_card_driver_init_cleanup: - - /* Stop */ - sd_card_stop( e); - - return sc; -} - -static rtems_status_code sd_card_driver_read( rtems_device_major_number major, rtems_device_minor_number minor, void *arg) -{ - rtems_status_code sc = RTEMS_SUCCESSFUL; - int rv = 0; - rtems_libio_rw_args_t *rw = (rtems_libio_rw_args_t *) arg; - sd_card_driver_entry *e = NULL; - uint32_t block_size_mask = 0; - uint32_t block_count = 0; - uint32_t start_block = 0; - uint32_t i = 0; - - /* Clear moved bytes counter */ - rw->bytes_moved = 0; - - /* Get driver entry */ - rv = sd_card_driver_get_entry( minor, &e); - RTEMS_CHECK_RV_SC( rv, "Get driver entry"); - - /* Start */ - sc = sd_card_start( e); - RTEMS_CLEANUP_SC( sc, sd_card_driver_read_cleanup, "Start"); - - /* Check arguments */ - block_size_mask = e->block_size - 1; - block_count = (uint32_t) rw->count >> e->block_size_shift; - start_block = (uint32_t) rw->offset >> e->block_size_shift; - if (rw->offset & block_size_mask) { - RTEMS_DO_CLEANUP_SC( RTEMS_INVALID_ADDRESS, sc, sd_card_driver_read_cleanup, "Invalid offset"); - } else if ((rw->count & block_size_mask) || (start_block >= e->block_number) || (block_count > e->block_number - start_block)) { - RTEMS_DO_CLEANUP_SC( RTEMS_INVALID_NUMBER, sc, sd_card_driver_read_cleanup, "Invalid count or out of range"); - } - - if (block_count == 0) { - /* Do nothing */ - } else if (block_count == 1) { - /* Single block read */ - rv = sd_card_send_command( e, SD_CARD_CMD_READ_SINGLE_BLOCK, (uint32_t) rw->offset); - RTEMS_CLEANUP_RV_SC( rv, sc, sd_card_driver_read_cleanup, "Send: SD_CARD_CMD_READ_SINGLE_BLOCK"); - rv = sd_card_read( e, SD_CARD_START_BLOCK_SINGLE_BLOCK_READ, (uint8_t *) rw->buffer, (int) e->block_size); - RTEMS_CLEANUP_RV_SC( rv, sc, sd_card_driver_read_cleanup, "Read: SD_CARD_CMD_READ_SINGLE_BLOCK"); - - /* Set moved bytes counter */ - rw->bytes_moved = (uint32_t) rv; - } else { - /* Start multiple block read */ - rv = sd_card_send_command( e, SD_CARD_CMD_READ_MULTIPLE_BLOCK, (uint32_t) rw->offset); - RTEMS_CLEANUP_RV_SC( rv, sc, sd_card_driver_read_stop_cleanup, "Send: SD_CARD_CMD_READ_MULTIPLE_BLOCK"); - - /* Multiple block read */ - for (i = 0; i < block_count; ++i) { - rv = sd_card_read( e, SD_CARD_START_BLOCK_MULTIPLE_BLOCK_READ, (uint8_t *) rw->buffer + (i << e->block_size_shift), (int) e->block_size); - RTEMS_CLEANUP_RV_SC( rv, sc, sd_card_driver_read_stop_cleanup, "Read block"); + for (minor = 0; minor < sd_card_driver_table_size; ++minor) { + e = &sd_card_driver_table [minor]; - /* Update moved bytes counter */ - rw->bytes_moved += (uint32_t) rv; - } + /* Initialize SD Card */ + sc = sd_card_init( e); + RTEMS_CHECK_SC( sc, "Initialize SD Card"); - /* Stop multiple block read */ - rv = sd_card_stop_multiple_block_read( e); - RTEMS_CLEANUP_RV_SC( rv, sc, sd_card_driver_read_cleanup, "Stop multiple block read"); + /* Create disk device */ + dev = rtems_filesystem_make_dev_t( major, minor); + sc = rtems_disk_create_phys( dev, (int) e->block_size, (int) e->block_number, sd_card_disk_ioctl, e->device_name); + RTEMS_CHECK_SC( sc, "Create disk device"); } - /* Stop */ - sc = sd_card_stop( e); - RTEMS_CHECK_SC( sc, "Stop"); - return RTEMS_SUCCESSFUL; +} -sd_card_driver_read_stop_cleanup: - - /* Stop multiple block read */ - sd_card_stop_multiple_block_read( e); - -sd_card_driver_read_cleanup: - - /* Stop */ - sd_card_stop( e); +/** @} */ - return sc; -} +static const rtems_driver_address_table sd_card_disk_ops = { + .initialization_entry = sd_card_disk_init, + .open_entry = rtems_blkdev_generic_open, + .close_entry = rtems_blkdev_generic_close, + .read_entry = rtems_blkdev_generic_read, + .write_entry = rtems_blkdev_generic_write, + .control_entry = rtems_blkdev_generic_ioctl +}; -static rtems_status_code sd_card_driver_write( rtems_device_major_number major, rtems_device_minor_number minor, void *arg) +rtems_status_code sd_card_register( void) { rtems_status_code sc = RTEMS_SUCCESSFUL; - int rv = 0; - rtems_libio_rw_args_t *rw = (rtems_libio_rw_args_t *) arg; - sd_card_driver_entry *e = NULL; - uint32_t block_size_mask = 0; - uint32_t block_count = 0; - uint32_t start_block = 0; - uint32_t i = 0; - - /* Clear moved bytes counter */ - rw->bytes_moved = 0; - - /* Get driver entry */ - rv = sd_card_driver_get_entry( minor, &e); - RTEMS_CHECK_RV_SC( rv, "Get driver entry"); - - /* Start */ - sc = sd_card_start( e); - RTEMS_CLEANUP_SC( sc, sd_card_driver_write_cleanup, "Start"); - - /* Check arguments */ - block_size_mask = e->block_size - 1; - block_count = (uint32_t) rw->count >> e->block_size_shift; - start_block = (uint32_t) rw->offset >> e->block_size_shift; - if (rw->offset & block_size_mask) { - RTEMS_DO_CLEANUP_SC( RTEMS_INVALID_ADDRESS, sc, sd_card_driver_write_cleanup, "Invalid offset"); - } else if ((rw->count & block_size_mask) || (start_block >= e->block_number) || (block_count > e->block_number - start_block)) { - RTEMS_DO_CLEANUP_SC( RTEMS_INVALID_NUMBER, sc, sd_card_driver_write_cleanup, "Invalid count or out of range"); - } - - if (block_count == 0) { - /* Do nothing */ - } else if (block_count == 1) { - /* Single block write */ - rv = sd_card_send_command( e, SD_CARD_CMD_WRITE_BLOCK, (uint32_t) rw->offset); - RTEMS_CLEANUP_RV_SC( rv, sc, sd_card_driver_write_cleanup, "Send: SD_CARD_CMD_WRITE_BLOCK"); - rv = sd_card_write( e, SD_CARD_START_BLOCK_SINGLE_BLOCK_WRITE, (uint8_t *) rw->buffer, (int) e->block_size); - RTEMS_CLEANUP_RV_SC( rv, sc, sd_card_driver_write_cleanup, "Write: SD_CARD_CMD_WRITE_BLOCK"); - - /* Set moved bytes counter */ - rw->bytes_moved = (uint32_t) rv; - } else { - /* Start multiple block write */ - rv = sd_card_send_command( e, SD_CARD_CMD_WRITE_MULTIPLE_BLOCK, (uint32_t) rw->offset); - RTEMS_CLEANUP_RV_SC( rv, sc, sd_card_driver_write_stop_cleanup, "Send: SD_CARD_CMD_WRITE_MULTIPLE_BLOCK"); - - /* Multiple block write */ - for (i = 0; i < block_count; ++i) { - rv = sd_card_write( e, SD_CARD_START_BLOCK_MULTIPLE_BLOCK_WRITE, (uint8_t *) rw->buffer + (i << e->block_size_shift), (int) e->block_size); - RTEMS_CLEANUP_RV_SC( rv, sc, sd_card_driver_write_stop_cleanup, "Write: SD_CARD_CMD_WRITE_MULTIPLE_BLOCK"); - - /* Update moved bytes counter */ - rw->bytes_moved += (uint32_t) rv; - } - - /* Stop multiple block write */ - rv = sd_card_stop_multiple_block_write( e); - RTEMS_CLEANUP_RV_SC( rv, sc, sd_card_driver_write_cleanup, "Stop multiple block write"); - } - - /* Get card status */ - rv = sd_card_send_command( e, SD_CARD_CMD_SEND_STATUS, 0); - RTEMS_CHECK_RV( rv, "Send: SD_CARD_CMD_SEND_STATUS"); + rtems_device_major_number major = 0; - /* Stop */ - sc = sd_card_stop( e); - RTEMS_CHECK_SC( sc, "Stop"); + sc = rtems_io_register_driver( 0, &sd_card_disk_ops, &major); + RTEMS_CHECK_SC( sc, "Register disk SD Card driver"); return RTEMS_SUCCESSFUL; - -sd_card_driver_write_stop_cleanup: - - /* Stop multiple block write */ - sd_card_stop_multiple_block_write( e); - -sd_card_driver_write_cleanup: - - /* Get card status */ - rv = sd_card_send_command( e, SD_CARD_CMD_SEND_STATUS, 0); - RTEMS_CHECK_RV( rv, "Send: SD_CARD_CMD_SEND_STATUS"); - - /* Stop */ - sd_card_stop( e); - - return sc; } - -/** @} */ - -const rtems_driver_address_table sd_card_driver_ops = { - .initialization_entry = sd_card_driver_init, - .open_entry = NULL, - .close_entry = NULL, - .read_entry = sd_card_driver_read, - .write_entry = sd_card_driver_write, - .control_entry = NULL -}; diff --git a/c/src/libchip/i2c/spi-sd-card.h b/c/src/libchip/i2c/spi-sd-card.h index 49d901d2ce..97a7918c70 100644 --- a/c/src/libchip/i2c/spi-sd-card.h +++ b/c/src/libchip/i2c/spi-sd-card.h @@ -55,11 +55,8 @@ extern "C" { #define SD_CARD_N_AC_MAX_DEFAULT 8 typedef struct { - rtems_libi2c_drv_t driver; - int table_index; - rtems_device_minor_number minor; const char *device_name; - const char *disk_device_name; + int bus; rtems_libi2c_tfr_mode_t transfer_mode; uint8_t command [SD_CARD_COMMAND_SIZE]; uint8_t response [SD_CARD_COMMAND_SIZE]; @@ -73,10 +70,12 @@ typedef struct { bool schedule_if_busy; } sd_card_driver_entry; -extern const rtems_driver_address_table sd_card_driver_ops; - extern sd_card_driver_entry sd_card_driver_table []; +extern size_t sd_card_driver_table_size; + +rtems_status_code sd_card_register( void); + #ifdef __cplusplus } #endif /* __cplusplus */ -- cgit v1.2.3