105 lines
2.8 KiB
C
105 lines
2.8 KiB
C
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// Copyright 2015-2018 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 <string.h>
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#include "diskio.h"
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#include "ffconf.h"
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#include "ff.h"
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#include "esp_log.h"
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#include "diskio_rawflash.h"
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static const char* TAG = "diskio_rawflash";
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const esp_partition_t* ff_raw_handles[FF_VOLUMES];
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DSTATUS ff_raw_initialize (BYTE pdrv)
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{
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return 0;
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}
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DSTATUS ff_raw_status (BYTE pdrv)
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{
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return 0;
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}
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DRESULT ff_raw_read (BYTE pdrv, BYTE *buff, DWORD sector, UINT count)
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{
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ESP_LOGV(TAG, "ff_raw_read - pdrv=%i, sector=%i, count=%in", (unsigned int)pdrv, (unsigned int)sector, (unsigned int)count);
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const esp_partition_t* part = ff_raw_handles[pdrv];
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assert(part);
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esp_err_t err = esp_partition_read(part, sector * SPI_FLASH_SEC_SIZE, buff, count * SPI_FLASH_SEC_SIZE);
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if (err != ESP_OK) {
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ESP_LOGE(TAG, "esp_partition_read failed (0x%x)", err);
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return RES_ERROR;
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}
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return RES_OK;
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}
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DRESULT ff_raw_write (BYTE pdrv, const BYTE *buff, DWORD sector, UINT count)
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{
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return RES_ERROR;
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}
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DRESULT ff_raw_ioctl (BYTE pdrv, BYTE cmd, void *buff)
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{
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const esp_partition_t* part = ff_raw_handles[pdrv];
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ESP_LOGV(TAG, "ff_raw_ioctl: cmd=%in", cmd);
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assert(part);
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switch (cmd) {
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case CTRL_SYNC:
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return RES_OK;
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case GET_SECTOR_COUNT:
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*((DWORD *) buff) = part->size / SPI_FLASH_SEC_SIZE;
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return RES_OK;
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case GET_SECTOR_SIZE:
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*((WORD *) buff) = SPI_FLASH_SEC_SIZE;
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return RES_OK;
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case GET_BLOCK_SIZE:
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return RES_ERROR;
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}
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return RES_ERROR;
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}
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esp_err_t ff_diskio_register_raw_partition(BYTE pdrv, const esp_partition_t* part_handle)
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{
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if (pdrv >= FF_VOLUMES) {
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return ESP_ERR_INVALID_ARG;
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}
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static const ff_diskio_impl_t raw_impl = {
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.init = &ff_raw_initialize,
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.status = &ff_raw_status,
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.read = &ff_raw_read,
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.write = &ff_raw_write,
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.ioctl = &ff_raw_ioctl
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};
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ff_diskio_register(pdrv, &raw_impl);
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ff_raw_handles[pdrv] = part_handle;
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return ESP_OK;
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}
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BYTE ff_diskio_get_pdrv_raw(const esp_partition_t* part_handle)
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{
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for (int i = 0; i < FF_VOLUMES; i++) {
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if (part_handle == ff_raw_handles[i]) {
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return i;
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}
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}
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return 0xff;
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}
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