ECE 2035 TA / Mbed 2 deprecated MazeRunner_Fall2017-shell

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Dependencies:   4DGL-uLCD-SE mbed wave_player

SDFileSystem/SDFileSystem.h@0:cf4396614a79, 2017-11-03 (annotated)

Committer:
rconnorlawson
Date:
Fri Nov 03 18:48:48 2017 +0000
Revision:
0:cf4396614a79
Emptied shell code (including doubly linked list) and added comments for all the functionality.;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
rconnorlawson 0:cf4396614a79 1 /* mbed Microcontroller Library
rconnorlawson 0:cf4396614a79 2 * Copyright (c) 2006-2012 ARM Limited
rconnorlawson 0:cf4396614a79 3 *
rconnorlawson 0:cf4396614a79 4 * Permission is hereby granted, free of charge, to any person obtaining a copy
rconnorlawson 0:cf4396614a79 5 * of this software and associated documentation files (the "Software"), to deal
rconnorlawson 0:cf4396614a79 6 * in the Software without restriction, including without limitation the rights
rconnorlawson 0:cf4396614a79 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
rconnorlawson 0:cf4396614a79 8 * copies of the Software, and to permit persons to whom the Software is
rconnorlawson 0:cf4396614a79 9 * furnished to do so, subject to the following conditions:
rconnorlawson 0:cf4396614a79 10 *
rconnorlawson 0:cf4396614a79 11 * The above copyright notice and this permission notice shall be included in
rconnorlawson 0:cf4396614a79 12 * all copies or substantial portions of the Software.
rconnorlawson 0:cf4396614a79 13 *
rconnorlawson 0:cf4396614a79 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
rconnorlawson 0:cf4396614a79 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
rconnorlawson 0:cf4396614a79 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
rconnorlawson 0:cf4396614a79 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
rconnorlawson 0:cf4396614a79 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
rconnorlawson 0:cf4396614a79 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
rconnorlawson 0:cf4396614a79 20 * SOFTWARE.
rconnorlawson 0:cf4396614a79 21 */
rconnorlawson 0:cf4396614a79 22 #ifndef MBED_SDFILESYSTEM_H
rconnorlawson 0:cf4396614a79 23 #define MBED_SDFILESYSTEM_H
rconnorlawson 0:cf4396614a79 24
rconnorlawson 0:cf4396614a79 25 #include "mbed.h"
rconnorlawson 0:cf4396614a79 26 #include "FATFileSystem.h"
rconnorlawson 0:cf4396614a79 27 #include <stdint.h>
rconnorlawson 0:cf4396614a79 28
rconnorlawson 0:cf4396614a79 29 /** Access the filesystem on an SD Card using SPI
rconnorlawson 0:cf4396614a79 30 *
rconnorlawson 0:cf4396614a79 31 * @code
rconnorlawson 0:cf4396614a79 32 * #include "mbed.h"
rconnorlawson 0:cf4396614a79 33 * #include "SDFileSystem.h"
rconnorlawson 0:cf4396614a79 34 *
rconnorlawson 0:cf4396614a79 35 * SDFileSystem sd(p5, p6, p7, p12, "sd"); // mosi, miso, sclk, cs
rconnorlawson 0:cf4396614a79 36 *
rconnorlawson 0:cf4396614a79 37 * int main() {
rconnorlawson 0:cf4396614a79 38 * FILE *fp = fopen("/sd/myfile.txt", "w");
rconnorlawson 0:cf4396614a79 39 * fprintf(fp, "Hello World!\n");
rconnorlawson 0:cf4396614a79 40 * fclose(fp);
rconnorlawson 0:cf4396614a79 41 * }
rconnorlawson 0:cf4396614a79 42 */
rconnorlawson 0:cf4396614a79 43 class SDFileSystem : public FATFileSystem {
rconnorlawson 0:cf4396614a79 44 public:
rconnorlawson 0:cf4396614a79 45
rconnorlawson 0:cf4396614a79 46 /** Create the File System for accessing an SD Card using SPI
rconnorlawson 0:cf4396614a79 47 *
rconnorlawson 0:cf4396614a79 48 * @param mosi SPI mosi pin connected to SD Card
rconnorlawson 0:cf4396614a79 49 * @param miso SPI miso pin conencted to SD Card
rconnorlawson 0:cf4396614a79 50 * @param sclk SPI sclk pin connected to SD Card
rconnorlawson 0:cf4396614a79 51 * @param cs DigitalOut pin used as SD Card chip select
rconnorlawson 0:cf4396614a79 52 * @param name The name used to access the virtual filesystem
rconnorlawson 0:cf4396614a79 53 */
rconnorlawson 0:cf4396614a79 54 SDFileSystem(PinName mosi, PinName miso, PinName sclk, PinName cs, const char* name);
rconnorlawson 0:cf4396614a79 55 virtual int disk_initialize();
rconnorlawson 0:cf4396614a79 56 virtual int disk_status();
rconnorlawson 0:cf4396614a79 57 virtual int disk_read(uint8_t * buffer, uint64_t block_number);
rconnorlawson 0:cf4396614a79 58 virtual int disk_write(const uint8_t * buffer, uint64_t block_number);
rconnorlawson 0:cf4396614a79 59 virtual int disk_sync();
rconnorlawson 0:cf4396614a79 60 virtual uint64_t disk_sectors();
rconnorlawson 0:cf4396614a79 61
rconnorlawson 0:cf4396614a79 62 protected:
rconnorlawson 0:cf4396614a79 63
rconnorlawson 0:cf4396614a79 64 int _cmd(int cmd, int arg);
rconnorlawson 0:cf4396614a79 65 int _cmdx(int cmd, int arg);
rconnorlawson 0:cf4396614a79 66 int _cmd8();
rconnorlawson 0:cf4396614a79 67 int _cmd58();
rconnorlawson 0:cf4396614a79 68 int initialise_card();
rconnorlawson 0:cf4396614a79 69 int initialise_card_v1();
rconnorlawson 0:cf4396614a79 70 int initialise_card_v2();
rconnorlawson 0:cf4396614a79 71
rconnorlawson 0:cf4396614a79 72 int _read(uint8_t * buffer, uint32_t length);
rconnorlawson 0:cf4396614a79 73 int _write(const uint8_t *buffer, uint32_t length);
rconnorlawson 0:cf4396614a79 74 uint64_t _sd_sectors();
rconnorlawson 0:cf4396614a79 75 uint64_t _sectors;
rconnorlawson 0:cf4396614a79 76
rconnorlawson 0:cf4396614a79 77 SPI _spi;
rconnorlawson 0:cf4396614a79 78 DigitalOut _cs;
rconnorlawson 0:cf4396614a79 79 int cdv;
rconnorlawson 0:cf4396614a79 80 };
rconnorlawson 0:cf4396614a79 81
rconnorlawson 0:cf4396614a79 82 #endif