SD card settings folder: Use f_stat to determine if directory is present

stm-firmware/fatfs/shimatta_sdio_driver/shimatta_sdio.c

@@ -739,6 +739,7 @@ DRESULT sdio_disk_write(const BYTE *buff, DWORD sector, UINT count)
 	uint32_t buff_offset = 0;
 	int ret;
 	UINT count_backup = count;
+	uint32_t retry_counter = 512;
 
 	if (sdio_check_write_protection())
 		return RES_WRPRT;
@@ -754,10 +755,18 @@ DRESULT sdio_disk_write(const BYTE *buff, DWORD sector, UINT count)
 			return RES_ERROR;
 	}
 
-	while (status.statusstruct.READY_FOR_DATA != 1) {
+	while (1) {
 		ret = sdio_check_status_register_cmd13(card_info.rca, &status.value);
 		if (ret)
 			return RES_ERROR;
+
+		if (status.statusstruct.CURRENT_STATE == CURRENT_STATE_TRAN)
+			break;
+
+		if (--retry_counter == 0)
+			return RES_ERROR;
+
+		sdio_wait_ms(1);
 	}
 
 	if (count > 1)

stm-firmware/settings/settings-sd-card.c

@@ -59,19 +59,17 @@ static int create_controller_folder(void)
 	char foldername[48];
 	int ret = -1;
 	FRESULT filesystem_result;
-	DIR folder;
+	FILINFO fno;
 
 	get_controller_folder_path(foldername, sizeof(foldername));
 
 	/* Check if folder is present */
-	filesystem_result = f_opendir(&folder, foldername);
+	filesystem_result = f_stat(foldername, &fno);
-	if (filesystem_result == FR_OK) {
+	if (filesystem_result == FR_OK && fno.fattrib & AM_DIR) {
 		ret = 0;
-		f_closedir(&folder);
 	} else {
 		filesystem_result = f_mkdir(foldername);
 		if (filesystem_result == FR_OK) {
-			f_closedir(&folder);
 			ret = 1;
 		} else {
 			ret = -1;