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sdspi: handle error flags for R3/R7 responses

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Previously error flags were only handled for R1 responses. This change
moves error handling into a separate function and calls it for R1/R3/R7.
This commit is contained in:
Ivan Grokhotkov
2018-02-06 10:53:41 +08:00
parent e6d6deebc7
commit bbbdec24d9
3 changed files with 39 additions and 13 deletions
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42
components/driver/sdspi_transaction.c
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@@ -51,6 +51,34 @@ void make_hw_cmd(uint32_t opcode, uint32_t arg, int timeout_ms, sdspi_hw_cmd_t *
hw_cmd->timeout_ms = timeout_ms;
}
static void r1_response_to_err(uint8_t r1, esp_err_t *out_err)
{
if (r1 & SD_SPI_R1_NO_RESPONSE) {
ESP_LOGD(TAG, "R1 response not found");
*out_err = ESP_ERR_TIMEOUT;
} else if (r1 & SD_SPI_R1_CMD_CRC_ERR) {
ESP_LOGD(TAG, "R1 response: command CRC error");
*out_err = ESP_ERR_INVALID_CRC;
} else if (r1 & SD_SPI_R1_ILLEGAL_CMD) {
ESP_LOGD(TAG, "R1 response: command not supported");
*out_err = ESP_ERR_NOT_SUPPORTED;
} else if (r1 & SD_SPI_R1_ADDR_ERR) {
ESP_LOGD(TAG, "R1 response: alignment error");
*out_err = ESP_ERR_INVALID_ARG;
} else if (r1 & SD_SPI_R1_PARAM_ERR) {
ESP_LOGD(TAG, "R1 response: size error");
*out_err = ESP_ERR_INVALID_SIZE;
} else if ((r1 & SD_SPI_R1_ERASE_RST) ||
(r1 & SD_SPI_R1_ERASE_SEQ_ERR)) {
*out_err = ESP_ERR_INVALID_STATE;
} else if (r1 & SD_SPI_R1_IDLE_STATE) {
// Idle state is handled at command layer
} else if (r1 != 0) {
ESP_LOGD(TAG, "R1 response: unexpected value 0x%02x", r1);
*out_err = ESP_ERR_INVALID_RESPONSE;
}
}
esp_err_t sdspi_host_do_transaction(int slot, sdmmc_command_t *cmdinfo)
{
_lock_acquire(&s_lock);
@@ -93,21 +121,11 @@ esp_err_t sdspi_host_do_transaction(int slot, sdmmc_command_t *cmdinfo)
// Some errors should be reported using return code
if (flags & SDSPI_CMD_FLAG_RSP_R1) {
cmdinfo->response[0] = hw_cmd.r1;
if (hw_cmd.r1 == 0xff) {
// No response received at all
} else if (hw_cmd.r1 & SD_SPI_R1_CMD_CRC_ERR) {
ret = ESP_ERR_INVALID_CRC;
} else if (hw_cmd.r1 & SD_SPI_R1_IDLE_STATE) {
// Idle state is handled at command layer
} else if (hw_cmd.r1 != 0) {
ESP_LOGD(TAG, "Unexpected R1 response: 0x%02x", hw_cmd.r1);
}
r1_response_to_err(hw_cmd.r1, &ret);
} else if (flags & SDSPI_CMD_FLAG_RSP_R2) {
cmdinfo->response[0] = (((uint32_t)hw_cmd.r1) << 8) | (hw_cmd.response[0] >> 24);
} else if (flags & (SDSPI_CMD_FLAG_RSP_R3 | SDSPI_CMD_FLAG_RSP_R7)) {
// Drop r1 response, only copy the other 4 bytes of data
// TODO: can we somehow preserve r1 response and keep upper layer
// same as in SD mode?
r1_response_to_err(hw_cmd.r1, &ret);
cmdinfo->response[0] = __builtin_bswap32(hw_cmd.response[0]);
}
}