[352] | 1 | /* mbed Microcontroller Library
|
---|
| 2 | * Copyright (c) 2006-2012 ARM Limited
|
---|
| 3 | *
|
---|
| 4 | * Permission is hereby granted, free of charge, to any person obtaining a copy
|
---|
| 5 | * of this software and associated documentation files (the "Software"), to deal
|
---|
| 6 | * in the Software without restriction, including without limitation the rights
|
---|
| 7 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
---|
| 8 | * copies of the Software, and to permit persons to whom the Software is
|
---|
| 9 | * furnished to do so, subject to the following conditions:
|
---|
| 10 | *
|
---|
| 11 | * The above copyright notice and this permission notice shall be included in
|
---|
| 12 | * all copies or substantial portions of the Software.
|
---|
| 13 | *
|
---|
| 14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
---|
| 15 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
---|
| 16 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
---|
| 17 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
---|
| 18 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
---|
| 19 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
---|
| 20 | * SOFTWARE.
|
---|
| 21 | */
|
---|
| 22 | #ifndef MBED_SDFILESYSTEM_H
|
---|
| 23 | #define MBED_SDFILESYSTEM_H
|
---|
| 24 |
|
---|
| 25 | #include <stdint.h>
|
---|
| 26 | //#include <time.h>
|
---|
| 27 | #define __NEED_time_t
|
---|
| 28 | #include "../musl-1.1.18/include/bits/alltypes.h"
|
---|
| 29 | #include "gpio_api.h"
|
---|
| 30 | #include "spi_api.h"
|
---|
| 31 |
|
---|
| 32 | #ifdef __cplusplus
|
---|
| 33 | extern "C" {
|
---|
| 34 | #endif
|
---|
| 35 |
|
---|
[359] | 36 | /* MMC card type flags (MMC_GET_TYPE) */
|
---|
| 37 | #define CT_FAIL 0x00
|
---|
| 38 | #define CT_MMC 0x01 /* MMC ver 3 */
|
---|
| 39 | #define CT_SD1 0x02 /* SD ver 1 */
|
---|
| 40 | #define CT_SD2 0x04 /* SD ver 2 */
|
---|
| 41 | #define CT_SDC (CT_SD1|CT_SD2) /* SD */
|
---|
| 42 | #define CT_BLOCK 0x08 /* Block addressing */
|
---|
| 43 |
|
---|
[352] | 44 | /** Access the filesystem on an SD Card using SPI
|
---|
| 45 | *
|
---|
| 46 | * @code
|
---|
| 47 | * #include "mbed.h"
|
---|
| 48 | * #include "SDFileSystem.h"
|
---|
| 49 | *
|
---|
| 50 | * SDFileSystem sd(p5, p6, p7, p12, "sd"); // MOSI, MISO, SCLK, SSEL
|
---|
| 51 | *
|
---|
| 52 | * int main() {
|
---|
| 53 | * FILE *fp = fopen("/sd/mbed.txt", "w");
|
---|
| 54 | * fprintf(fp, "Hello World!\n");
|
---|
| 55 | * fclose(fp);
|
---|
| 56 | * }
|
---|
| 57 | * @endcode
|
---|
| 58 | */
|
---|
| 59 | typedef struct sdfs_s{
|
---|
| 60 | const char* name;
|
---|
[359] | 61 | volatile uint8_t _is_initialized;
|
---|
| 62 | uint8_t _card_type;
|
---|
| 63 | uint8_t _csd[16], _cid[16];
|
---|
| 64 | uint64_t _capacity;
|
---|
| 65 | uint64_t _block_len;
|
---|
[352] | 66 | uint64_t _sectors;
|
---|
| 67 | spi_t _spi;
|
---|
| 68 | gpio_t _cs;
|
---|
| 69 | int cdv;
|
---|
| 70 | uint32_t _init_sck;
|
---|
| 71 | uint32_t _transfer_sck;
|
---|
| 72 | } sdfs_t;
|
---|
| 73 |
|
---|
| 74 | /** Create the File System for accessing an SD Card using SPI
|
---|
| 75 | *
|
---|
| 76 | * @param mosi SPI mosi pin connected to SD Card
|
---|
| 77 | * @param miso SPI miso pin conencted to SD Card
|
---|
| 78 | * @param sclk SPI sclk pin connected to SD Card
|
---|
| 79 | * @param cs DigitalOut pin used as SD Card chip select
|
---|
| 80 | * @param name The name used to access the virtual filesystem
|
---|
| 81 | */
|
---|
[374] | 82 | void sdfs_init(sdfs_t *obj, PinName mosi, PinName miso, PinName sclk, PinName cs, const char* name);
|
---|
[352] | 83 |
|
---|
| 84 | int sdfs_initialize(sdfs_t *obj);
|
---|
| 85 | int sdfs_status(sdfs_t *obj);
|
---|
| 86 | int sdfs_read(sdfs_t *obj, uint8_t * buffer, uint32_t sector, uint32_t count);
|
---|
| 87 | int sdfs_write(sdfs_t *obj, const uint8_t * buffer, uint32_t sector, uint32_t count);
|
---|
| 88 | int sdfs_sync(sdfs_t *obj);
|
---|
| 89 | uint64_t sdfs_sectors(sdfs_t *obj);
|
---|
[359] | 90 | int sdfs_trim(sdfs_t *obj, uint32_t st, uint32_t ed);
|
---|
| 91 | int sdfs_get_ocr(sdfs_t *obj, uint8_t buff[4]);
|
---|
| 92 | int sdfs_get_sdstat(sdfs_t *obj, uint8_t buff[64]);
|
---|
[352] | 93 |
|
---|
| 94 | #ifdef __cplusplus
|
---|
| 95 | }
|
---|
| 96 | #endif
|
---|
| 97 |
|
---|
| 98 | #endif
|
---|