diff options
| author | gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2011-05-01 09:10:22 +0000 |
|---|---|---|
| committer | gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2011-05-01 09:10:22 +0000 |
| commit | 40c7b22bf43d795d9e6822f67907a1665aa6d7b6 (patch) | |
| tree | f2b67a5fcdb85a4ef348c7fbe29184b76b316433 /os/hal/platforms/STM32/sdc_lld.c | |
| parent | dd9cac5ffa29031b1175bb750e587a20362f5276 (diff) | |
| download | ChibiOS-40c7b22bf43d795d9e6822f67907a1665aa6d7b6.tar.gz ChibiOS-40c7b22bf43d795d9e6822f67907a1665aa6d7b6.tar.bz2 ChibiOS-40c7b22bf43d795d9e6822f67907a1665aa6d7b6.zip | |
git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@2908 35acf78f-673a-0410-8e92-d51de3d6d3f4
Diffstat (limited to 'os/hal/platforms/STM32/sdc_lld.c')
| -rw-r--r-- | os/hal/platforms/STM32/sdc_lld.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/os/hal/platforms/STM32/sdc_lld.c b/os/hal/platforms/STM32/sdc_lld.c index 8517a040d..626702084 100644 --- a/os/hal/platforms/STM32/sdc_lld.c +++ b/os/hal/platforms/STM32/sdc_lld.c @@ -189,6 +189,8 @@ void sdc_lld_set_bus_mode(SDCDriver *sdcp, sdcbusmode_t mode) { * @brief Sends an SDIO command with no response expected.
*
* @param[in] sdcp pointer to the @p SDCDriver object
+ * @param[in[ cmd card command
+ * @param[in] arg command argument
*
* @notapi
*/
@@ -206,6 +208,9 @@ void sdc_lld_send_cmd_none(SDCDriver *sdcp, uint8_t cmd, uint32_t arg) { * @brief Sends an SDIO command with a short response expected.
*
* @param[in] sdcp pointer to the @p SDCDriver object
+ * @param[in[ cmd card command
+ * @param[in] arg command argument
+ * @param[out] resp pointer to the response buffer (one word)
* @return The operation status.
* @retval FALSE the operation succeeded.
* @retval TRUE the operation failed because timeout, CRC check or
@@ -215,13 +220,28 @@ void sdc_lld_send_cmd_none(SDCDriver *sdcp, uint8_t cmd, uint32_t arg) { */
bool_t sdc_lld_send_cmd_short(SDCDriver *sdcp, uint8_t cmd, uint32_t arg,
uint32_t *resp) {
+ uint32_t sta;
+ (void)sdcp;
+ SDIO->ARG = arg;
+ SDIO->CMD = (uint32_t)cmd | SDIO_CMD_WAITRESP_0 | SDIO_CMD_CPSMEN;
+ while (((sta = SDIO->STA) & (SDIO_STA_CMDREND | SDIO_STA_CTIMEOUT |
+ SDIO_STA_CCRCFAIL)) == 0)
+ ;
+ SDIO->ICR = 0xFFFFFFFF;
+ if ((sta & (SDIO_STA_CTIMEOUT | SDIO_STA_CCRCFAIL)) != 0)
+ return TRUE;
+ *resp = SDIO->RESP1;
+ return FALSE;
}
/**
* @brief Sends an SDIO command with a long response expected.
*
* @param[in] sdcp pointer to the @p SDCDriver object
+ * @param[in[ cmd card command
+ * @param[in] arg command argument
+ * @param[out] resp pointer to the response buffer (four words)
* @return The operation status.
* @retval FALSE the operation succeeded.
* @retval TRUE the operation failed because timeout, CRC check or
@@ -232,6 +252,20 @@ bool_t sdc_lld_send_cmd_short(SDCDriver *sdcp, uint8_t cmd, uint32_t arg, bool_t sdc_lld_send_cmd_long(SDCDriver *sdcp, uint8_t cmd, uint32_t arg,
uint32_t *resp) {
+ uint32_t sta;
+
+ (void)sdcp;
+ SDIO->ARG = arg;
+ SDIO->CMD = (uint32_t)cmd | SDIO_CMD_WAITRESP_0 | SDIO_CMD_WAITRESP_1 |
+ SDIO_CMD_CPSMEN;
+ while (((sta = SDIO->STA) & (SDIO_STA_CMDREND | SDIO_STA_CTIMEOUT |
+ SDIO_STA_CCRCFAIL)) == 0)
+ ;
+ SDIO->ICR = 0xFFFFFFFF;
+ if ((sta & (SDIO_STA_CTIMEOUT | SDIO_STA_CCRCFAIL)) != 0)
+ return TRUE;
+ *resp = SDIO->RESP1;
+ return FALSE;
}
#endif /* HAL_USE_SDC */
|