209 lines
7 KiB
C
209 lines
7 KiB
C
// Copyright 2015-2017 Espressif Systems (Shanghai) PTE LTD
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include <stdlib.h>
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#include <string.h>
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#include "esp_log.h"
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#include "esp_vfs.h"
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#include "esp_vfs_fat.h"
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#include "vfs_fat_internal.h"
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#include "diskio.h"
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#include "diskio_rawflash.h"
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#include "wear_levelling.h"
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#include "diskio_wl.h"
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static const char *TAG = "vfs_fat_spiflash";
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esp_err_t esp_vfs_fat_spiflash_mount(const char* base_path,
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const char* partition_label,
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const esp_vfs_fat_mount_config_t* mount_config,
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wl_handle_t* wl_handle)
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{
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esp_err_t result = ESP_OK;
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const size_t workbuf_size = 4096;
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void *workbuf = NULL;
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esp_partition_subtype_t subtype = partition_label ?
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ESP_PARTITION_SUBTYPE_ANY : ESP_PARTITION_SUBTYPE_DATA_FAT;
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const esp_partition_t *data_partition = esp_partition_find_first(ESP_PARTITION_TYPE_DATA,
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subtype, partition_label);
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if (data_partition == NULL) {
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ESP_LOGE(TAG, "Failed to find FATFS partition (type='data', subtype='fat', partition_label='%s'). Check the partition table.", partition_label);
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return ESP_ERR_NOT_FOUND;
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}
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result = wl_mount(data_partition, wl_handle);
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if (result != ESP_OK) {
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ESP_LOGE(TAG, "failed to mount wear levelling layer. result = %i", result);
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return result;
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}
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// connect driver to FATFS
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BYTE pdrv = 0xFF;
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if (ff_diskio_get_drive(&pdrv) != ESP_OK) {
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ESP_LOGD(TAG, "the maximum count of volumes is already mounted");
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return ESP_ERR_NO_MEM;
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}
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ESP_LOGD(TAG, "using pdrv=%i", pdrv);
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char drv[3] = {(char)('0' + pdrv), ':', 0};
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result = ff_diskio_register_wl_partition(pdrv, *wl_handle);
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if (result != ESP_OK) {
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ESP_LOGE(TAG, "ff_diskio_register_wl_partition failed pdrv=%i, error - 0x(%x)", pdrv, result);
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goto fail;
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}
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FATFS *fs;
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result = esp_vfs_fat_register(base_path, drv, mount_config->max_files, &fs);
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if (result == ESP_ERR_INVALID_STATE) {
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// it's okay, already registered with VFS
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} else if (result != ESP_OK) {
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ESP_LOGD(TAG, "esp_vfs_fat_register failed 0x(%x)", result);
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goto fail;
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}
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// Try to mount partition
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FRESULT fresult = f_mount(fs, drv, 1);
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if (fresult != FR_OK) {
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ESP_LOGW(TAG, "f_mount failed (%d)", fresult);
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if (!(fresult == FR_NO_FILESYSTEM && mount_config->format_if_mount_failed)) {
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result = ESP_FAIL;
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goto fail;
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}
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workbuf = ff_memalloc(workbuf_size);
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if (workbuf == NULL) {
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result = ESP_ERR_NO_MEM;
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goto fail;
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}
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size_t alloc_unit_size = esp_vfs_fat_get_allocation_unit_size(
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CONFIG_WL_SECTOR_SIZE,
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mount_config->allocation_unit_size);
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ESP_LOGI(TAG, "Formatting FATFS partition, allocation unit size=%d", alloc_unit_size);
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fresult = f_mkfs(drv, FM_ANY | FM_SFD, alloc_unit_size, workbuf, workbuf_size);
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if (fresult != FR_OK) {
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result = ESP_FAIL;
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ESP_LOGE(TAG, "f_mkfs failed (%d)", fresult);
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goto fail;
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}
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free(workbuf);
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workbuf = NULL;
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ESP_LOGI(TAG, "Mounting again");
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fresult = f_mount(fs, drv, 0);
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if (fresult != FR_OK) {
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result = ESP_FAIL;
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ESP_LOGE(TAG, "f_mount failed after formatting (%d)", fresult);
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goto fail;
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}
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}
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return ESP_OK;
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fail:
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free(workbuf);
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esp_vfs_fat_unregister_path(base_path);
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ff_diskio_unregister(pdrv);
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return result;
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}
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esp_err_t esp_vfs_fat_spiflash_unmount(const char *base_path, wl_handle_t wl_handle)
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{
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BYTE pdrv = ff_diskio_get_pdrv_wl(wl_handle);
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if (pdrv == 0xff) {
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return ESP_ERR_INVALID_STATE;
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}
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char drv[3] = {(char)('0' + pdrv), ':', 0};
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f_mount(0, drv, 0);
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ff_diskio_unregister(pdrv);
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ff_diskio_clear_pdrv_wl(wl_handle);
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// release partition driver
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esp_err_t err_drv = wl_unmount(wl_handle);
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esp_err_t err = esp_vfs_fat_unregister_path(base_path);
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if (err == ESP_OK) err = err_drv;
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return err;
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}
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esp_err_t esp_vfs_fat_rawflash_mount(const char* base_path,
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const char* partition_label,
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const esp_vfs_fat_mount_config_t* mount_config)
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{
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esp_err_t result = ESP_OK;
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const esp_partition_t *data_partition = esp_partition_find_first(ESP_PARTITION_TYPE_DATA,
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ESP_PARTITION_SUBTYPE_DATA_FAT, partition_label);
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if (data_partition == NULL) {
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ESP_LOGE(TAG, "Failed to find FATFS partition (type='data', subtype='fat', partition_label='%s'). Check the partition table.", partition_label);
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return ESP_ERR_NOT_FOUND;
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}
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// connect driver to FATFS
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BYTE pdrv = 0xFF;
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if (ff_diskio_get_drive(&pdrv) != ESP_OK) {
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ESP_LOGD(TAG, "the maximum count of volumes is already mounted");
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return ESP_ERR_NO_MEM;
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}
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ESP_LOGD(TAG, "using pdrv=%i", pdrv);
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char drv[3] = {(char)('0' + pdrv), ':', 0};
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result = ff_diskio_register_raw_partition(pdrv, data_partition);
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if (result != ESP_OK) {
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ESP_LOGE(TAG, "ff_diskio_register_raw_partition failed pdrv=%i, error - 0x(%x)", pdrv, result);
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goto fail;
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}
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FATFS *fs;
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result = esp_vfs_fat_register(base_path, drv, mount_config->max_files, &fs);
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if (result == ESP_ERR_INVALID_STATE) {
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// it's okay, already registered with VFS
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} else if (result != ESP_OK) {
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ESP_LOGD(TAG, "esp_vfs_fat_register failed 0x(%x)", result);
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goto fail;
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}
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// Try to mount partition
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FRESULT fresult = f_mount(fs, drv, 1);
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if (fresult != FR_OK) {
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ESP_LOGW(TAG, "f_mount failed (%d)", fresult);
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result = ESP_FAIL;
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goto fail;
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}
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return ESP_OK;
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fail:
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esp_vfs_fat_unregister_path(base_path);
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ff_diskio_unregister(pdrv);
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return result;
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}
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esp_err_t esp_vfs_fat_rawflash_unmount(const char *base_path, const char* partition_label)
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{
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const esp_partition_t *data_partition = esp_partition_find_first(ESP_PARTITION_TYPE_DATA,
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ESP_PARTITION_SUBTYPE_DATA_FAT, partition_label);
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if (data_partition == NULL) {
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ESP_LOGE(TAG, "Failed to find FATFS partition (type='data', subtype='fat', partition_label='%s'). Check the partition table.", partition_label);
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return ESP_ERR_NOT_FOUND;
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}
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BYTE pdrv = ff_diskio_get_pdrv_raw(data_partition);
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if (pdrv == 0xff) {
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return ESP_ERR_INVALID_STATE;
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}
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char drv[3] = {(char)('0' + pdrv), ':', 0};
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f_mount(0, drv, 0);
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ff_diskio_unregister(pdrv);
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esp_err_t err = esp_vfs_fat_unregister_path(base_path);
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return err;
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}
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