my SD/MMC no longer works from version 5.0 (IDFGH-11818)

[SybexX]

Answers checklist.

• I have read the documentation ESP-IDF Programming Guide and the issue is not addressed there.
• I have updated my IDF branch (master or release) to the latest version and checked that the issue is present there.
• I have searched the issue tracker for a similar issue and not found a similar issue.

IDF version.

[email protected]

Espressif SoC revision.

ESP32-S

Operating System used.

Windows

How did you build your project?

VS Code IDE

If you are using Windows, please specify command line type.

None

Development Kit.

AI Thinker ESP32-CAM

Power Supply used.

USB

What is the expected behavior?

older SDs without ATA-TRIM support do not work

What is the actual behavior?

SD initialization is aborted

Steps to reproduce.

Using an older SD card

Debug Logs.

No response

More Information.

As of version 5.0, FF_USE_TRIM was set from 0 to 1 and since then my card has not been recognized.
This is because it does not support ATA-TRIM^^

You have added a function esp_err_t sdmmc_can_trim(sdmmc_card_t* card) for this, but it has no effect.
I searched for the error overnight and found a solution for it.

After I modified the files as follows, everything works as it should again:

fatfs/diskio/diskio_sdmmc.c

DRESULT ff_sdmmc_ioctl (BYTE pdrv, BYTE cmd, void* buff), at lines 106 to 110 changed from:

#if FF_USE_TRIM
        case CTRL_TRIM:
            return ff_sdmmc_trim (pdrv, *((DWORD*)buff), //start_sector
                    (*((DWORD*)buff + 1) - *((DWORD*)buff) + 1)); //sector_count
#endif //FF_USE_TRIM

to:

#if (FF_USE_TRIM)
        case CTRL_TRIM:
            if(FF_CAN_TRIM){
                return ff_sdmmc_trim (pdrv, *((DWORD*)buff), //start_sector
                    (*((DWORD*)buff + 1) - *((DWORD*)buff) + 1)); //sector_count
            }
            else{
                return RES_ERROR;
            }
#endif //FF_USE_TRIM

fatfs/src/ff.c

added:

#include "sdmmc_cmd.h"

static FRESULT remove_chain(FFOBJID* obj, DWORD clst, DWORD pclst), at lines 1437 to 1454 changed from:

#if FF_FS_EXFAT || FF_USE_TRIM
		if (ecl + 1 == nxt) {	/* Is next cluster contiguous? */
			ecl = nxt;
		} else {				/* End of contiguous cluster block */
#if FF_FS_EXFAT
			if (fs->fs_type == FS_EXFAT) {
				res = change_bitmap(fs, scl, ecl - scl + 1, 0);	/* Mark the cluster block 'free' on the bitmap */
				if (res != FR_OK) return res;
			}
#endif
#if FF_USE_TRIM
			rt[0] = clst2sect(fs, scl);					/* Start of data area to be freed */
			rt[1] = clst2sect(fs, ecl) + fs->csize - 1;	/* End of data area to be freed */
			disk_ioctl(fs->pdrv, CTRL_TRIM, rt);		/* Inform storage device that the data in the block may be erased */
#endif
			scl = ecl = nxt;
		}
#endif

to:

#if FF_FS_EXFAT || FF_USE_TRIM
		if(FF_FS_EXFAT || FF_CAN_TRIM){
			if (ecl + 1 == nxt) {	/* Is next cluster contiguous? */
				ecl = nxt;
			} 
			else {				/* End of contiguous cluster block */
#if FF_FS_EXFAT
				if (fs->fs_type == FS_EXFAT) {
					res = change_bitmap(fs, scl, ecl - scl + 1, 0);	/* Mark the cluster block 'free' on the bitmap */
					if (res != FR_OK) return res;
				}
#endif
#if FF_USE_TRIM
				if(FF_CAN_TRIM){
					rt[0] = clst2sect(fs, scl);					/* Start of data area to be freed */
					rt[1] = clst2sect(fs, ecl) + fs->csize - 1;	/* End of data area to be freed */
					disk_ioctl(fs->pdrv, CTRL_TRIM, rt);		/* Inform storage device that the data in the block may be erased */
				}
#endif				
				scl = ecl = nxt;
			}
		}
#endif

FRESULT f_mkfs(const TCHAR* path, const MKFS_PARM* opt, void* work, UINT len), at lines 5946 to 5949 changed from:

#if FF_USE_TRIM
		lba[0] = b_vol; lba[1] = b_vol + sz_vol - 1;	/* Inform storage device that the volume area may be erased */
		disk_ioctl(pdrv, CTRL_TRIM, lba);
#endif

to:

#if FF_USE_TRIM
		if(FF_CAN_TRIM){
			lba[0] = b_vol; lba[1] = b_vol + sz_vol - 1;	/* Inform storage device that the volume area may be erased */
			disk_ioctl(pdrv, CTRL_TRIM, lba);
		}
#endif

FRESULT f_mkfs(const TCHAR* path, const MKFS_PARM* opt, void* work, UINT len), at lines 6175 to 6178 changed from:

#if FF_USE_TRIM
		lba[0] = b_vol; lba[1] = b_vol + sz_vol - 1;	/* Inform storage device that the volume area may be erased */
		disk_ioctl(pdrv, CTRL_TRIM, lba);
#endif

to:

#if FF_USE_TRIM
		if(FF_CAN_TRIM){
			lba[0] = b_vol; lba[1] = b_vol + sz_vol - 1;	/* Inform storage device that the volume area may be erased */
			disk_ioctl(pdrv, CTRL_TRIM, lba);
		}
#endif

sdmmc/sdmmc_cmd.c

added:

int FF_CAN_TRIM = 0;

esp_err_t sdmmc_can_trim(sdmmc_card_t* card), at lines 630 to 636 changed from:

esp_err_t sdmmc_can_trim(sdmmc_card_t* card)
{
    if ((card->is_mmc) && (card->ext_csd.sec_feature & EXT_CSD_SEC_GB_CL_EN)) {
        return ESP_OK;
    }
    return ESP_FAIL;
}

to:

esp_err_t sdmmc_can_trim(sdmmc_card_t* card)
{
    if ((card->is_mmc) && (card->ext_csd.sec_feature & EXT_CSD_SEC_GB_CL_EN)) {
        FF_CAN_TRIM = 1;
        return ESP_OK;
    }
    FF_CAN_TRIM = 0;
    return ESP_FAIL;
}

sdmmc/include/sdmmc_cmd.h

added:

extern int FF_CAN_TRIM;

[haberturdeur]

Hi, thank you for the report.
Could you please try using the original code, with only this change (adding the can_trim check):

DRESULT ff_sdmmc_ioctl (BYTE pdrv, BYTE cmd, void* buff)
{
    sdmmc_card_t* card = s_cards[pdrv];
    assert(card);
    switch(cmd) {
        case CTRL_SYNC:
            return RES_OK;
        case GET_SECTOR_COUNT:
            *((DWORD*) buff) = card->csd.capacity;
            return RES_OK;
        case GET_SECTOR_SIZE:
            *((WORD*) buff) = card->csd.sector_size;
            return RES_OK;
        case GET_BLOCK_SIZE:
            return RES_ERROR;
#if FF_USE_TRIM
        case CTRL_TRIM:
            if (sdmmc_can_trim(card) != ESP_OK) {
                return RES_PARERR;
            }
            return ff_sdmmc_trim (pdrv, *((DWORD*)buff), //start_sector
                    (*((DWORD*)buff + 1) - *((DWORD*)buff) + 1)); //sector_count
#endif //FF_USE_TRIM
    }
    return RES_ERROR;
}

[SybexX]

After a few tests everything (initialization, reading, writing and deleting) works as it should, see picture

[SybexX]

I've now tested it with two SDs that didn't work before and both work now.

[SybexX]

I've now tested with a second ESP32-CAM and a third SD that didn't work before and now it works as expected ^^

[haberturdeur]

Thank you!

[pacucha42]

@SybexX - closing the task. Feel free to reopen if the issue appears again. Thank you

[pacucha42]

Reopening, there is a code fix ready for merging so this task cannot yet be closed. My bad, sorry