alex/esp-idf
1
0
Fork 0
mirror of https://github.com/espressif/esp-idf.git synced 2025-12-16 04:22:22 +00:00
Code Issues Packages Projects Releases Wiki Activity

fatfs: Implementation of disk_status nad disk_initialize for SD/MMC card

Browse Source 
FATFS provides a disk status and disk initialize callback which were not
implemented. Implementation has very low impact on SD/MMC speed and
fixes issues, when trying to open file when SD card was removed from
slot and not deinited.

If disk_status returns STA_NOINIT, it will always continue with
disk_initialize. If that returns 0, it will continue like everything is
working normally. So there has to be the same check as in disk_status.
Return of disk_initialize is always checked like this for STA_NOINIT or
STA_PROTECT so if command fails, we return the STA_NOINIT.

stat = disk_initialize(pdrv);
if (stat & STA_NOINIT) return FR_NOT_READY;
if (stat & STA_PROTECT) return FR_WRITE_PROTECTED;

Closes IDF-4125
This commit is contained in:
Jan Procházka
2021-10-12 15:30:13 +02:00
committed by bot
parent 5206afe755
commit fb22c1f182
4 changed files with 49 additions and 44 deletions
Download Patch File Download Diff File Expand all files Collapse all files

21
components/sdmmc/sdmmc_cmd.c
View File

@@ -1,18 +1,7 @@
/*
* Copyright (c) 2006 Uwe Stuehler <uwe@openbsd.org>
* Adaptations to ESP-IDF Copyright (c) 2016-2018 Espressif Systems (Shanghai) PTE LTD
* SPDX-FileCopyrightText: 2015-2021 Espressif Systems (Shanghai) CO LTD
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
* SPDX-License-Identifier: Apache-2.0
*/
#include "sdmmc_common.h"
@@ -511,3 +500,9 @@ esp_err_t sdmmc_read_sectors_dma(sdmmc_card_t* card, void* dst,
}
return ESP_OK;
}
esp_err_t sdmmc_get_status(sdmmc_card_t* card)
{
uint32_t stat;
return sdmmc_send_cmd_send_status(card, &stat);
}