Vipin Ranka / MGAS_GR_Peach

This is the final version of Mini Gateway for Automation and Security desgined for Renesas GR Peach Design Contest

Dependencies:   GR-PEACH_video GraphicsFramework HTTPServer R_BSP mbed-rpc mbed-rtos Socket lwip-eth lwip-sys lwip FATFileSystem

Fork of mbed-os-example-mbed5-blinky by mbed-os-examples

SDFileSystem/SDFileSystem.h@12:9a20164dcc47, 2017-01-11 (annotated)

Committer:
vipinranka
Date:
Wed Jan 11 11:41:30 2017 +0000
Revision:
12:9a20164dcc47
This is the final version MGAS Project for Renesas GR Peach Design Contest

Who changed what in which revision?

UserRevisionLine numberNew contents of line
vipinranka 12:9a20164dcc47 1 /* mbed Microcontroller Library
vipinranka 12:9a20164dcc47 2 * Copyright (c) 2006-2012 ARM Limited
vipinranka 12:9a20164dcc47 3 *
vipinranka 12:9a20164dcc47 4 * Permission is hereby granted, free of charge, to any person obtaining a copy
vipinranka 12:9a20164dcc47 5 * of this software and associated documentation files (the "Software"), to deal
vipinranka 12:9a20164dcc47 6 * in the Software without restriction, including without limitation the rights
vipinranka 12:9a20164dcc47 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
vipinranka 12:9a20164dcc47 8 * copies of the Software, and to permit persons to whom the Software is
vipinranka 12:9a20164dcc47 9 * furnished to do so, subject to the following conditions:
vipinranka 12:9a20164dcc47 10 *
vipinranka 12:9a20164dcc47 11 * The above copyright notice and this permission notice shall be included in
vipinranka 12:9a20164dcc47 12 * all copies or substantial portions of the Software.
vipinranka 12:9a20164dcc47 13 *
vipinranka 12:9a20164dcc47 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
vipinranka 12:9a20164dcc47 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
vipinranka 12:9a20164dcc47 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
vipinranka 12:9a20164dcc47 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
vipinranka 12:9a20164dcc47 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
vipinranka 12:9a20164dcc47 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
vipinranka 12:9a20164dcc47 20 * SOFTWARE.
vipinranka 12:9a20164dcc47 21 */
vipinranka 12:9a20164dcc47 22 #ifndef MBED_SDFILESYSTEM_H
vipinranka 12:9a20164dcc47 23 #define MBED_SDFILESYSTEM_H
vipinranka 12:9a20164dcc47 24
vipinranka 12:9a20164dcc47 25 #include "mbed.h"
vipinranka 12:9a20164dcc47 26 #include "FATFileSystem.h"
vipinranka 12:9a20164dcc47 27 #include <stdint.h>
vipinranka 12:9a20164dcc47 28
vipinranka 12:9a20164dcc47 29 /** Access the filesystem on an SD Card using SPI
vipinranka 12:9a20164dcc47 30 *
vipinranka 12:9a20164dcc47 31 * @code
vipinranka 12:9a20164dcc47 32 * #include "mbed.h"
vipinranka 12:9a20164dcc47 33 * #include "SDFileSystem.h"
vipinranka 12:9a20164dcc47 34 *
vipinranka 12:9a20164dcc47 35 * SDFileSystem sd(p5, p6, p7, p12, "sd"); // mosi, miso, sclk, cs
vipinranka 12:9a20164dcc47 36 *
vipinranka 12:9a20164dcc47 37 * int main() {
vipinranka 12:9a20164dcc47 38 * FILE *fp = fopen("/sd/myfile.txt", "w");
vipinranka 12:9a20164dcc47 39 * fprintf(fp, "Hello World!\n");
vipinranka 12:9a20164dcc47 40 * fclose(fp);
vipinranka 12:9a20164dcc47 41 * }
vipinranka 12:9a20164dcc47 42 */
vipinranka 12:9a20164dcc47 43 class SDFileSystem : public FATFileSystem {
vipinranka 12:9a20164dcc47 44 public:
vipinranka 12:9a20164dcc47 45
vipinranka 12:9a20164dcc47 46 /** Create the File System for accessing an SD Card using SPI
vipinranka 12:9a20164dcc47 47 *
vipinranka 12:9a20164dcc47 48 * @param mosi SPI mosi pin connected to SD Card
vipinranka 12:9a20164dcc47 49 * @param miso SPI miso pin conencted to SD Card
vipinranka 12:9a20164dcc47 50 * @param sclk SPI sclk pin connected to SD Card
vipinranka 12:9a20164dcc47 51 * @param cs DigitalOut pin used as SD Card chip select
vipinranka 12:9a20164dcc47 52 * @param name The name used to access the virtual filesystem
vipinranka 12:9a20164dcc47 53 */
vipinranka 12:9a20164dcc47 54 SDFileSystem(PinName mosi, PinName miso, PinName sclk, PinName cs, const char* name);
vipinranka 12:9a20164dcc47 55 virtual int disk_initialize();
vipinranka 12:9a20164dcc47 56 virtual int disk_status();
vipinranka 12:9a20164dcc47 57 virtual int disk_read(uint8_t* buffer, uint32_t block_number, uint32_t count);
vipinranka 12:9a20164dcc47 58 virtual int disk_write(const uint8_t* buffer, uint32_t block_number, uint32_t count);
vipinranka 12:9a20164dcc47 59 virtual int disk_sync();
vipinranka 12:9a20164dcc47 60 virtual uint32_t disk_sectors();
vipinranka 12:9a20164dcc47 61
vipinranka 12:9a20164dcc47 62 protected:
vipinranka 12:9a20164dcc47 63
vipinranka 12:9a20164dcc47 64 int _cmd(int cmd, int arg);
vipinranka 12:9a20164dcc47 65 int _cmdx(int cmd, int arg);
vipinranka 12:9a20164dcc47 66 int _cmd8();
vipinranka 12:9a20164dcc47 67 int _cmd58();
vipinranka 12:9a20164dcc47 68 int initialise_card();
vipinranka 12:9a20164dcc47 69 int initialise_card_v1();
vipinranka 12:9a20164dcc47 70 int initialise_card_v2();
vipinranka 12:9a20164dcc47 71
vipinranka 12:9a20164dcc47 72 int _read(uint8_t * buffer, uint32_t length);
vipinranka 12:9a20164dcc47 73 int _write(const uint8_t *buffer, uint32_t length);
vipinranka 12:9a20164dcc47 74 uint32_t _sd_sectors();
vipinranka 12:9a20164dcc47 75 uint32_t _sectors;
vipinranka 12:9a20164dcc47 76
vipinranka 12:9a20164dcc47 77 void set_init_sck(uint32_t sck) { _init_sck = sck; }
vipinranka 12:9a20164dcc47 78 // Note: The highest SPI clock rate is 20 MHz for MMC and 25 MHz for SD
vipinranka 12:9a20164dcc47 79 void set_transfer_sck(uint32_t sck) { _transfer_sck = sck; }
vipinranka 12:9a20164dcc47 80 uint32_t _init_sck;
vipinranka 12:9a20164dcc47 81 uint32_t _transfer_sck;
vipinranka 12:9a20164dcc47 82
vipinranka 12:9a20164dcc47 83 SPI _spi;
vipinranka 12:9a20164dcc47 84 DigitalOut _cs;
vipinranka 12:9a20164dcc47 85 int cdv;
vipinranka 12:9a20164dcc47 86 int _is_initialized;
vipinranka 12:9a20164dcc47 87 };
vipinranka 12:9a20164dcc47 88
vipinranka 12:9a20164dcc47 89 #endif