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Enabled 4 bits mode enabling in the SDC driver. 

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@2944 35acf78f-673a-0410-8e92-d51de3d6d3f4
master
gdisirio 2011-05-09 17:54:23 +00:00
parent 4e00ffa69c
commit 539fc8bfc3
3 changed files with 18 additions and 7 deletions
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1
os/hal/include/sdc.h
View File

@ -40,6 +40,7 @@
#define SDC_CMD_GO_IDLE_STATE 0
#define SDC_CMD_ALL_SEND_CID 2
#define SDC_CMD_SEND_RELATIVE_ADDR 3
#define SDC_CMD_SET_BUS_WIDTH 6
#define SDC_CMD_SEL_DESEL_CARD 7
#define SDC_CMD_SEND_IF_COND 8
#define SDC_CMD_SEND_CSD 9

4
os/hal/platforms/STM32/sdc_lld.h
View File

@ -148,6 +148,10 @@ struct SDCDriver {
* @brief Card CSD.
*/
uint32_t csd[4];
/**
* @brief Card RCA.
*/
uint32_t rca;
/* End of the mandatory fields.*/
/**
* @brief Tthread waiting for I/O completion IRQ.

20
os/hal/src/sdc.c
View File

@ -173,7 +173,7 @@ bool_t sdcConnect(SDCDriver *sdcp) {
while (TRUE) {
chThdSleepMilliseconds(10);
if (sdc_lld_send_cmd_short_crc(sdcp, SDC_CMD_APP_CMD, 0, resp))
goto failed;
goto failed;
if (sdc_lld_send_cmd_short(sdcp, SDC_CMD_APP_OP_COND, ocr, resp))
goto failed;
if ((resp[0] & 0x80000000) != 0) {
@ -191,18 +191,18 @@ bool_t sdcConnect(SDCDriver *sdcp) {
goto failed;
/* Asks for the RCA.*/
if (sdc_lld_send_cmd_short_crc(sdcp, SDC_CMD_SEND_RELATIVE_ADDR, 0, resp))
if (sdc_lld_send_cmd_short_crc(sdcp, SDC_CMD_SEND_RELATIVE_ADDR, 0, &sdcp->rca))
goto failed;
/* Reads CSD.*/
if (sdc_lld_send_cmd_long_crc(sdcp, SDC_CMD_SEND_CSD, resp[0], sdcp->csd))
if (sdc_lld_send_cmd_long_crc(sdcp, SDC_CMD_SEND_CSD, sdcp->rca, sdcp->csd))
goto failed;
/* Switches to high speed.*/
sdc_lld_set_data_clk(sdcp);
/* Selects the card for operations.*/
if (sdc_lld_send_cmd_short_crc(sdcp, SDC_CMD_SEL_DESEL_CARD, resp[0], resp))
if (sdc_lld_send_cmd_short_crc(sdcp, SDC_CMD_SEL_DESEL_CARD, sdcp->rca, resp))
goto failed;
/* Block length fixed at 512 bytes.*/
@ -211,11 +211,17 @@ bool_t sdcConnect(SDCDriver *sdcp) {
goto failed;
/* Switches to wide bus mode.*/
/* switch (sdcp->cardmode & SDC_MODE_CARDTYPE_MASK) {
switch (sdcp->cardmode & SDC_MODE_CARDTYPE_MASK) {
case SDC_MODE_CARDTYPE_SDV11:
case SDC_MODE_CARDTYPE_SDV20:
SDIO->CLKCR |= SDIO_CLKCR_WIDBUS_0;
}*/
sdc_lld_set_bus_mode(sdcp, SDC_MODE_4BIT);
if (sdc_lld_send_cmd_short_crc(sdcp, SDC_CMD_APP_CMD, sdcp->rca, resp) ||
(resp[0] & SDC_R1_ERROR_MASK))
goto failed;
if (sdc_lld_send_cmd_short_crc(sdcp, SDC_CMD_SET_BUS_WIDTH, 2, resp) ||
(resp[0] & SDC_R1_ERROR_MASK))
goto failed;
}
sdcp->state = SDC_ACTIVE;
return FALSE;