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sdmmc: support SDIO over SPI

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michael
2018-12-29 02:04:37 +08:00
committed by Michael (XIAO Xufeng)
parent 3ec7bec6a7
commit 8a364b4bdf
12 changed files with 350 additions and 163 deletions
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10
components/sdmmc/sdmmc_init.c
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@@ -69,12 +69,18 @@ esp_err_t sdmmc_card_init(const sdmmc_host_t* config, sdmmc_card_t* card)
ESP_LOGD(TAG, "%s: card type is %s", __func__,
is_sdio ? "SDIO" : is_mmc ? "MMC" : "SD");
/* Read and decode the contents of CID register and assign RCA */
SDMMC_INIT_STEP(always, sdmmc_init_cid);
/* Read the contents of CID register*/
SDMMC_INIT_STEP(is_mem, sdmmc_init_cid);
/* Assign RCA */
SDMMC_INIT_STEP(!is_spi, sdmmc_init_rca);
/* Read and decode the contents of CSD register */
SDMMC_INIT_STEP(is_mem, sdmmc_init_csd);
/* Decode the contents of mmc CID register */
SDMMC_INIT_STEP(is_mmc && !is_spi, sdmmc_init_mmc_decode_cid);
/* Switch the card from stand-by mode to data transfer mode (not needed if
* SPI interface is used). This is needed to issue SET_BLOCKLEN and
* SEND_SCR commands.