mhu/stm32f4-sdio
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Omplement first draft of write functionality

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This commit is contained in:
Mario Hüttel
2020-02-22 21:52:51 +01:00
parent d722738de9
commit 641a6a88af
3 changed files with 54 additions and 7 deletions
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50
fatfs/shimatta_sdio_driver/shimatta_sdio.c
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@@ -181,10 +181,10 @@ static int sdio_send_csd_cmd9(uint16_t rca, uint32_t *response_buffer) {
/**
* @brief Send data buffer to SD card
* @param dlen Data length. Must be a multiple of 4 bytes
* @param blklen Block length
* @param blklen Log2 of block length (9 in case of 512 byte block)
* @param buff Buffer to send
*/
static void sdio_write_buffer(uint32_t dlen, uint32_t blklen, uint8_t *buff)
static void sdio_write_buffer(uint32_t dlen, uint32_t log_blklen, const unsigned char *buff)
{
uint32_t count;
int byte_count;
@@ -197,7 +197,7 @@ static void sdio_write_buffer(uint32_t dlen, uint32_t blklen, uint8_t *buff)
SDIO->ICR = SDIO_ICR_CCRCFAILC | SDIO_ICR_DCRCFAILC | SDIO_ICR_CTIMEOUTC | SDIO_ICR_DTIMEOUTC |
SDIO_ICR_TXUNDERRC | SDIO_ICR_RXOVERRC | SDIO_ICR_CMDRENDC | SDIO_ICR_CMDSENTC | SDIO_ICR_DATAENDC |
SDIO_ICR_STBITERRC | SDIO_ICR_DBCKENDC | SDIO_ICR_SDIOITC | SDIO_ICR_CEATAENDC;
SDIO->DCTRL = (blklen<<4) | SDIO_DCTRL_DTEN;
SDIO->DCTRL = (log_blklen<<4) | SDIO_DCTRL_DTEN;
for (count = 0; count < dlen; count += 4) {
fifo = 0;
@@ -225,9 +225,11 @@ static void sdio_write_buffer(uint32_t dlen, uint32_t blklen, uint8_t *buff)
static int sdio_send_write_block_cmd24(uint32_t addr)
{
(void)addr;
uint32_t response;
return -1;
sdio_send_cmd(24, addr, SHORT_ANS);
return sdio_get_response(24, SHORT_ANS, &response);
}
static int sdio_check_status_register_cmd13(uint16_t rca, uint32_t *status)
@@ -691,5 +693,41 @@ DRESULT sdio_disk_read(BYTE *buff, DWORD sector, UINT count){
*/
DRESULT sdio_disk_write(const BYTE *buff, DWORD sector, UINT count)
{
return RES_ERROR;
uint32_t addr;
union sdio_status_conv status;
uint32_t buff_offset = 0;
int ret;
if (sdio_check_write_protection())
return RES_WRPRT;
addr = (card_info.type == SD_V2_HC ? (sector) : (sector * 512));
while (count) {
do {
sdio_check_status_register_cmd13(card_info.rca, &status.value);
} while (status.statusstruct.CURRENT_STATE == CURRENT_STATE_PRG ||
status.statusstruct.CURRENT_STATE == CURRENT_STATE_RCV);
if (status.statusstruct.CURRENT_STATE == CURRENT_STATE_STBY) {
if (sdio_send_select_card_cmd7(card_info.rca))
return RES_ERROR;
}
do {
sdio_check_status_register_cmd13(card_info.rca, &status.value);
} while (status.statusstruct.READY_FOR_DATA != 1);
ret = sdio_send_write_block_cmd24(addr);
if (ret) {
return RES_ERROR;
}
sdio_write_buffer(512, 9, &buff[buff_offset]);
buff_offset += 512;
addr += (card_info.type == SD_V2_HC ? 1 : 512);
count--;
}
return RES_OK;
}