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sdmmc: Add erase command-38. Support erase/trim/discard/sanitize

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options.

Erase command (38) for SD cards allows option for erase/dicard/fule
operation at block level and for MMC cards supports option for
discard/trim at block level. When Sanitize is executed only the
portion of data that was unmapped by a Discard command shall be
removed by the Sanitize command.

Unit test cases added to verify ERASE feature in SD/SDSPI mode.
TRIM/DISCARD/SANITIZE tests for eMMC devices.

Closes https://github.com/espressif/esp-idf/pull/7635
Closes https://github.com/espressif/esp-idf/issues/7623
This commit is contained in:
Vamshi Gajjela
2022-02-25 17:14:53 +05:30
parent 19ddb8bde1
commit ffdbeee9f6
12 changed files with 825 additions and 16 deletions
Download Patch File Download Diff File Expand all files Collapse all files
components/sdmmc/sdmmc_common.h
+9
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@@ -37,6 +37,7 @@
*/
#define SDMMC_DEFAULT_CMD_TIMEOUT_MS 1000 // Max timeout of ordinary commands
#define SDMMC_WRITE_CMD_TIMEOUT_MS 5000 // Max timeout of write commands
#define SDMMC_ERASE_BLOCK_TIMEOUT_MS 500 // Max timeout of erase per block
/* Maximum retry/error count for SEND_OP_COND (CMD1).
* These are somewhat arbitrary, values originate from OpenBSD driver.
@@ -44,6 +45,12 @@
#define SDMMC_SEND_OP_COND_MAX_RETRIES 100
#define SDMMC_SEND_OP_COND_MAX_ERRORS 3
/* supported arguments for erase command 38 */
#define SDMMC_SD_ERASE_ARG 0
#define SDMMC_SD_DISCARD_ARG 1
#define SDMMC_MMC_TRIM_ARG 1
#define SDMMC_MMC_DISCARD_ARG 3
/* Functions to send individual commands */
esp_err_t sdmmc_send_cmd(sdmmc_card_t* card, sdmmc_command_t* cmd);
esp_err_t sdmmc_send_app_cmd(sdmmc_card_t* card, sdmmc_command_t* cmd);
@@ -78,6 +85,7 @@ esp_err_t sdmmc_check_scr(sdmmc_card_t* card);
esp_err_t sdmmc_decode_cid(sdmmc_response_t resp, sdmmc_cid_t* out_cid);
esp_err_t sdmmc_decode_csd(sdmmc_response_t response, sdmmc_csd_t* out_csd);
esp_err_t sdmmc_decode_scr(uint32_t *raw_scr, sdmmc_scr_t* out_scr);
esp_err_t sdmmc_decode_ssr(uint32_t *raw_ssr, sdmmc_ssr_t* out_ssr);
/* SDIO specific */
esp_err_t sdmmc_io_reset(sdmmc_card_t* card);
@@ -108,6 +116,7 @@ esp_err_t sdmmc_init_spi_crc(sdmmc_card_t* card);
esp_err_t sdmmc_init_io(sdmmc_card_t* card);
esp_err_t sdmmc_init_sd_blocklen(sdmmc_card_t* card);
esp_err_t sdmmc_init_sd_scr(sdmmc_card_t* card);
esp_err_t sdmmc_init_sd_ssr(sdmmc_card_t* card);
esp_err_t sdmmc_init_sd_wait_data_ready(sdmmc_card_t* card);
esp_err_t sdmmc_init_mmc_read_ext_csd(sdmmc_card_t* card);
esp_err_t sdmmc_init_mmc_read_cid(sdmmc_card_t* card);