100 lines
2.7 KiB
C
100 lines
2.7 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 "diskio_impl.h"
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#include "ffconf.h"
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#include "ff.h"
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#include "sdmmc_cmd.h"
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#include "esp_log.h"
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#include "esp_compiler.h"
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static sdmmc_card_t* s_cards[FF_VOLUMES] = { NULL };
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static const char* TAG = "diskio_sdmmc";
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DSTATUS ff_sdmmc_initialize (BYTE pdrv)
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{
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return 0;
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}
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DSTATUS ff_sdmmc_status (BYTE pdrv)
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{
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return 0;
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}
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DRESULT ff_sdmmc_read (BYTE pdrv, BYTE* buff, DWORD sector, UINT count)
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{
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sdmmc_card_t* card = s_cards[pdrv];
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assert(card);
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esp_err_t err = sdmmc_read_sectors(card, buff, sector, count);
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if (unlikely(err != ESP_OK)) {
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ESP_LOGE(TAG, "sdmmc_read_blocks failed (%d)", 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_sdmmc_write (BYTE pdrv, const BYTE* buff, DWORD sector, UINT count)
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{
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sdmmc_card_t* card = s_cards[pdrv];
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assert(card);
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esp_err_t err = sdmmc_write_sectors(card, buff, sector, count);
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if (unlikely(err != ESP_OK)) {
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ESP_LOGE(TAG, "sdmmc_write_blocks failed (%d)", 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_sdmmc_ioctl (BYTE pdrv, BYTE cmd, void* buff)
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{
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sdmmc_card_t* card = s_cards[pdrv];
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assert(card);
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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) = card->csd.capacity;
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return RES_OK;
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case GET_SECTOR_SIZE:
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*((WORD*) buff) = card->csd.sector_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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void ff_diskio_register_sdmmc(BYTE pdrv, sdmmc_card_t* card)
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{
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static const ff_diskio_impl_t sdmmc_impl = {
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.init = &ff_sdmmc_initialize,
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.status = &ff_sdmmc_status,
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.read = &ff_sdmmc_read,
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.write = &ff_sdmmc_write,
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.ioctl = &ff_sdmmc_ioctl
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};
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s_cards[pdrv] = card;
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ff_diskio_register(pdrv, &sdmmc_impl);
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}
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BYTE ff_diskio_get_pdrv_card(const sdmmc_card_t* card)
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{
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for (int i = 0; i < FF_VOLUMES; i++) {
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if (card == s_cards[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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