source: asp3_tinet_ecnl_arm/trunk/ntshell/fatfs/sdfs.h@ 374

/* mbed Microcontroller Library
        * Copyright (c) 2006-2012 ARM Limited
        *
        * Permission is hereby granted, free of charge, to any person obtaining a copy
        * of this software and associated documentation files (the "Software"), to deal
        * in the Software without restriction, including without limitation the rights
        * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
        * copies of the Software, and to permit persons to whom the Software is
        * furnished to do so, subject to the following conditions:
        *
        * The above copyright notice and this permission notice shall be included in
        * all copies or substantial portions of the Software.
        *
        * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
        * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
        * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
        * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
        * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
        * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
        * SOFTWARE.
        */
#ifndef MBED_SDFILESYSTEM_H
#define MBED_SDFILESYSTEM_H

#include <stdint.h>
//#include <time.h>
#define __NEED_time_t
#include "../musl-1.1.18/include/bits/alltypes.h"
#include "gpio_api.h"
#include "spi_api.h"

#ifdef __cplusplus
extern "C" {
#endif

/* MMC card type flags (MMC_GET_TYPE) */
#define CT_FAIL         0x00
#define CT_MMC          0x01            /* MMC ver 3 */
#define CT_SD1          0x02            /* SD ver 1 */
#define CT_SD2          0x04            /* SD ver 2 */
#define CT_SDC          (CT_SD1|CT_SD2) /* SD */
#define CT_BLOCK        0x08            /* Block addressing */

/** Access the filesystem on an SD Card using SPI
        *
        * @code
        * #include "mbed.h"
        * #include "SDFileSystem.h"
        *
        * SDFileSystem sd(p5, p6, p7, p12, "sd"); // MOSI, MISO, SCLK, SSEL
        *  
        * int main() {
        *     FILE *fp = fopen("/sd/mbed.txt", "w");
        *     fprintf(fp, "Hello World!\n");
        *     fclose(fp);
        * }
        * @endcode
        */
typedef struct sdfs_s{
        const char* name;
        volatile uint8_t _is_initialized;
        uint8_t _card_type;
        uint8_t _csd[16], _cid[16];
        uint64_t _capacity;
        uint64_t _block_len;
        uint64_t _sectors;
        spi_t _spi;
        gpio_t _cs;
        int cdv;
    uint32_t _init_sck;
    uint32_t _transfer_sck;
} sdfs_t;

/** Create the File System for accessing an SD Card using SPI
        *
        * @param mosi SPI mosi pin connected to SD Card
        * @param miso SPI miso pin conencted to SD Card
        * @param sclk SPI sclk pin connected to SD Card
        * @param cs   DigitalOut pin used as SD Card chip select
        * @param name The name used to access the virtual filesystem
        */
void sdfs_init(sdfs_t *obj, PinName mosi, PinName miso, PinName sclk, PinName cs, const char* name);

int sdfs_initialize(sdfs_t *obj);
int sdfs_status(sdfs_t *obj);
int sdfs_read(sdfs_t *obj, uint8_t * buffer, uint32_t sector, uint32_t count);
int sdfs_write(sdfs_t *obj, const uint8_t * buffer, uint32_t sector, uint32_t count);
int sdfs_sync(sdfs_t *obj);
uint64_t sdfs_sectors(sdfs_t *obj);
int sdfs_trim(sdfs_t *obj, uint32_t st, uint32_t ed);
int sdfs_get_ocr(sdfs_t *obj, uint8_t buff[4]);
int sdfs_get_sdstat(sdfs_t *obj, uint8_t buff[64]);

#ifdef __cplusplus
}
#endif

#endif