goutham dugyala / SDFileSystem_Axelta

FATFileSystem_old

Dependencies:   FATFilesystem_Axelta

SDFileSystem.h@0:7ba80dad604c, 2016-11-10 (annotated)

Committer:
gauthibit
Date:
Thu Nov 10 07:18:55 2016 +0000
Revision:
0:7ba80dad604c
SDFilesystem Axelta

Who changed what in which revision?

UserRevisionLine numberNew contents of line
gauthibit 0:7ba80dad604c 1 /* mbed Microcontroller Library
gauthibit 0:7ba80dad604c 2 * Copyright (c) 2006-2012 ARM Limited
gauthibit 0:7ba80dad604c 3 *
gauthibit 0:7ba80dad604c 4 * Permission is hereby granted, free of charge, to any person obtaining a copy
gauthibit 0:7ba80dad604c 5 * of this software and associated documentation files (the "Software"), to deal
gauthibit 0:7ba80dad604c 6 * in the Software without restriction, including without limitation the rights
gauthibit 0:7ba80dad604c 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
gauthibit 0:7ba80dad604c 8 * copies of the Software, and to permit persons to whom the Software is
gauthibit 0:7ba80dad604c 9 * furnished to do so, subject to the following conditions:
gauthibit 0:7ba80dad604c 10 *
gauthibit 0:7ba80dad604c 11 * The above copyright notice and this permission notice shall be included in
gauthibit 0:7ba80dad604c 12 * all copies or substantial portions of the Software.
gauthibit 0:7ba80dad604c 13 *
gauthibit 0:7ba80dad604c 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
gauthibit 0:7ba80dad604c 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
gauthibit 0:7ba80dad604c 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
gauthibit 0:7ba80dad604c 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
gauthibit 0:7ba80dad604c 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
gauthibit 0:7ba80dad604c 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
gauthibit 0:7ba80dad604c 20 * SOFTWARE.
gauthibit 0:7ba80dad604c 21 */
gauthibit 0:7ba80dad604c 22 #ifndef MBED_SDFILESYSTEM_H
gauthibit 0:7ba80dad604c 23 #define MBED_SDFILESYSTEM_H
gauthibit 0:7ba80dad604c 24
gauthibit 0:7ba80dad604c 25 #include "mbed.h"
gauthibit 0:7ba80dad604c 26 #include "FATFileSystem.h"
gauthibit 0:7ba80dad604c 27 #include <stdint.h>
gauthibit 0:7ba80dad604c 28
gauthibit 0:7ba80dad604c 29 /** Access the filesystem on an SD Card using SPI
gauthibit 0:7ba80dad604c 30 *
gauthibit 0:7ba80dad604c 31 * @code
gauthibit 0:7ba80dad604c 32 * #include "mbed.h"
gauthibit 0:7ba80dad604c 33 * #include "SDFileSystem.h"
gauthibit 0:7ba80dad604c 34 *
gauthibit 0:7ba80dad604c 35 * SDFileSystem sd(p5, p6, p7, p12, "sd"); // mosi, miso, sclk, cs
gauthibit 0:7ba80dad604c 36 *
gauthibit 0:7ba80dad604c 37 * int main() {
gauthibit 0:7ba80dad604c 38 * FILE *fp = fopen("/sd/myfile.txt", "w");
gauthibit 0:7ba80dad604c 39 * fprintf(fp, "Hello World!\n");
gauthibit 0:7ba80dad604c 40 * fclose(fp);
gauthibit 0:7ba80dad604c 41 * }
gauthibit 0:7ba80dad604c 42 */
gauthibit 0:7ba80dad604c 43 class SDFileSystem : public FATFileSystem {
gauthibit 0:7ba80dad604c 44 public:
gauthibit 0:7ba80dad604c 45
gauthibit 0:7ba80dad604c 46 /** Create the File System for accessing an SD Card using SPI
gauthibit 0:7ba80dad604c 47 *
gauthibit 0:7ba80dad604c 48 * @param mosi SPI mosi pin connected to SD Card
gauthibit 0:7ba80dad604c 49 * @param miso SPI miso pin conencted to SD Card
gauthibit 0:7ba80dad604c 50 * @param sclk SPI sclk pin connected to SD Card
gauthibit 0:7ba80dad604c 51 * @param cs DigitalOut pin used as SD Card chip select
gauthibit 0:7ba80dad604c 52 * @param name The name used to access the virtual filesystem
gauthibit 0:7ba80dad604c 53 */
gauthibit 0:7ba80dad604c 54 SDFileSystem(PinName mosi, PinName miso, PinName sclk, PinName cs, const char* name);
gauthibit 0:7ba80dad604c 55 virtual int disk_initialize();
gauthibit 0:7ba80dad604c 56 virtual int disk_status();
gauthibit 0:7ba80dad604c 57 virtual int disk_read(uint8_t * buffer, uint64_t block_number);
gauthibit 0:7ba80dad604c 58 virtual int disk_write(const uint8_t * buffer, uint64_t block_number);
gauthibit 0:7ba80dad604c 59 virtual int disk_sync();
gauthibit 0:7ba80dad604c 60 virtual uint64_t disk_sectors();
gauthibit 0:7ba80dad604c 61
gauthibit 0:7ba80dad604c 62 protected:
gauthibit 0:7ba80dad604c 63
gauthibit 0:7ba80dad604c 64 int _cmd(int cmd, int arg);
gauthibit 0:7ba80dad604c 65 int _cmdx(int cmd, int arg);
gauthibit 0:7ba80dad604c 66 int _cmd8();
gauthibit 0:7ba80dad604c 67 int _cmd58();
gauthibit 0:7ba80dad604c 68 int initialise_card();
gauthibit 0:7ba80dad604c 69 int initialise_card_v1();
gauthibit 0:7ba80dad604c 70 int initialise_card_v2();
gauthibit 0:7ba80dad604c 71
gauthibit 0:7ba80dad604c 72 int _read(uint8_t * buffer, uint32_t length);
gauthibit 0:7ba80dad604c 73 int _write(const uint8_t *buffer, uint32_t length);
gauthibit 0:7ba80dad604c 74 uint64_t _sd_sectors();
gauthibit 0:7ba80dad604c 75 uint64_t _sectors;
gauthibit 0:7ba80dad604c 76
gauthibit 0:7ba80dad604c 77 SPI _spi;
gauthibit 0:7ba80dad604c 78 DigitalOut _cs;
gauthibit 0:7ba80dad604c 79 int cdv;
gauthibit 0:7ba80dad604c 80 };
gauthibit 0:7ba80dad604c 81
gauthibit 0:7ba80dad604c 82 #endif