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Fix to lpc214x MMC/SD due to lm3s changes

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1833 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo
2009-05-28 23:14:27 +00:00
parent bfacea73ba
commit 5db59d557b
15 changed files with 154 additions and 16 deletions
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drivers/mmcsd/mmcsd_spi.c
+47 -4
View File
@@ -168,6 +168,9 @@ static void mmcsd_semtake(sem_t *sem);
/* Card SPI interface *******************************************************/
#ifdef CONFIG_MMCSD_SYNCHRONIZE
static inline void mmcsd_synchronize(FAR struct mmcsd_slot_s *slot);
#endif
static int mmcsd_waitready(FAR struct mmcsd_slot_s *slot);
static uint32 mmcsd_sendcmd(FAR struct mmcsd_slot_s *slot,
const struct mmcsd_cmdinfo_s *cmd, uint32 arg);
@@ -343,6 +346,38 @@ static void mmcsd_semtake(sem_t *sem)
#define mmcsd_semgive(sem) sem_post(sem)
/****************************************************************************
* Name: mmcsd_synchronize
*
* Description:
* Wait until the the card is no longer busy
*
* Assumptions:
* MMC/SD card already selected
*
****************************************************************************/
#ifdef CONFIG_MMCSD_SYNCHRONIZE
static inline void mmcsd_synchronize(FAR struct mmcsd_slot_s *slot)
{
FAR struct spi_dev_s *spi = slot->spi;
/* De-select the MMCSD card */
SPI_SELECT(spi, SPIDEV_MMCSD, FALSE);
/* Wait a bit */
SPI_SEND(spi, 0xff);
/* Reselect the card */
SPI_SELECT(spi, SPIDEV_MMCSD, TRUE);
}
#else
# define mmcsd_synchronize(slot) /* No synchronization needed */s
#endif
/****************************************************************************
* Name: mmcsd_waitready
*
@@ -625,7 +660,7 @@ static void mmcsd_decodecsd(FAR struct mmcsd_slot_s *slot, ubyte *csd)
g_transpeedru[MMCSD_CSD_TRANSPEED_TRANSFERRATEUNIT(csd)];
/* Clip the max frequency to account for board limitations */
frequency = maxfrequency;
if (frequency > CONFIG_MMCSD_SPICLOCK)
{
@@ -804,6 +839,7 @@ static int mmcsd_getcardinfo(FAR struct mmcsd_slot_s *slot, ubyte *buffer,
/* Send the CMD9 or CMD10 */
mmcsd_synchronize(slot);
result = mmcsd_sendcmd(slot, cmd, 0);
if (result != MMCSD_SPIR1_OK)
{
@@ -1081,7 +1117,7 @@ static ssize_t mmcsd_read(FAR struct inode *inode, unsigned char *buffer,
mmcsd_semtake(&slot->sem);
SPI_SELECT(spi, SPIDEV_MMCSD, TRUE);
SPI_SEND(spi, 0xff);
mmcsd_synchronize(slot);
/* Single or multiple block read? */
@@ -1108,7 +1144,7 @@ static ssize_t mmcsd_read(FAR struct inode *inode, unsigned char *buffer,
}
else
{
/* Send CMD17: Reads a block of the size selected by the SET_BLOCKLEN
/* Send CMD18: Reads a block of the size selected by the SET_BLOCKLEN
* command and verify that good R1 status is returned
*/
@@ -1243,7 +1279,7 @@ static ssize_t mmcsd_write(FAR struct inode *inode, const unsigned char *buffer,
mmcsd_semtake(&slot->sem);
SPI_SELECT(spi, SPIDEV_MMCSD, TRUE);
SPI_SEND(spi, 0xff);
mmcsd_synchronize(slot);
/* Single or multiple block transfer? */
@@ -1533,9 +1569,11 @@ static int mmcsd_mediainitialize(FAR struct mmcsd_slot_s *slot)
do
{
fvdbg("%d. Send CMD55/ACMD41\n", elapsed);
mmcsd_synchronize(slot);
result = mmcsd_sendcmd(slot, &g_cmd55, 0);
if (result == MMCSD_SPIR1_IDLESTATE || result == MMCSD_SPIR1_OK)
{
mmcsd_synchronize(slot);
result = mmcsd_sendcmd(slot, &g_acmd41, 1 << 30);
if (result == MMCSD_SPIR1_OK)
{
@@ -1578,11 +1616,13 @@ static int mmcsd_mediainitialize(FAR struct mmcsd_slot_s *slot)
/* Both the MMC card and the SD card support CMD55 */
fvdbg("Send CMD55/ACMD41\n");
mmcsd_synchronize(slot);
result = mmcsd_sendcmd(slot, &g_cmd55, 0);
if (result == MMCSD_SPIR1_IDLESTATE || result == MMCSD_SPIR1_OK)
{
/* But ACMD41 is supported only on SD */
mmcsd_synchronize(slot);
result = mmcsd_sendcmd(slot, &g_acmd41, 0);
if (result == MMCSD_SPIR1_IDLESTATE || result == MMCSD_SPIR1_OK)
{
@@ -1600,9 +1640,11 @@ static int mmcsd_mediainitialize(FAR struct mmcsd_slot_s *slot)
if (IS_SD(slot->type))
{
fvdbg("%d. Send CMD55/ACMD41\n", elapsed);
mmcsd_synchronize(slot);
result = mmcsd_sendcmd(slot, &g_cmd55, 0);
if (result == MMCSD_SPIR1_IDLESTATE || result == MMCSD_SPIR1_OK)
{
mmcsd_synchronize(slot);
result = mmcsd_sendcmd(slot, &g_acmd41, 0);
if (result == MMCSD_SPIR1_OK)
{
@@ -1613,6 +1655,7 @@ static int mmcsd_mediainitialize(FAR struct mmcsd_slot_s *slot)
else
{
fvdbg("%d. Send CMD1\n", i);
mmcsd_synchronize(slot);
result = mmcsd_sendcmd(slot, &g_cmd1, 0);
if (result == MMCSD_SPIR1_OK)
{