Prof Greg Egan / Mbed 2 deprecated UAVXArm-GKE

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Dependencies:   mbed

SDFileSystem/.svn/text-base/SDFileSystem.h.svn-base@1:1e3318a30ddd, 2011-02-25 (annotated)

Committer:
gke
Date:
Fri Feb 25 01:35:24 2011 +0000
Revision:
1:1e3318a30ddd
This version has broken I2C - posted for debugging involvement of Simon et al.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
gke 1:1e3318a30ddd 1 /* mbed SDFileSystem Library, for providing file access to SD cards
gke 1:1e3318a30ddd 2 * Copyright (c) 2008-2010, sford
gke 1:1e3318a30ddd 3 *
gke 1:1e3318a30ddd 4 * Permission is hereby granted, free of charge, to any person obtaining a copy
gke 1:1e3318a30ddd 5 * of this software and associated documentation files (the "Software"), to deal
gke 1:1e3318a30ddd 6 * in the Software without restriction, including without limitation the rights
gke 1:1e3318a30ddd 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
gke 1:1e3318a30ddd 8 * copies of the Software, and to permit persons to whom the Software is
gke 1:1e3318a30ddd 9 * furnished to do so, subject to the following conditions:
gke 1:1e3318a30ddd 10 *
gke 1:1e3318a30ddd 11 * The above copyright notice and this permission notice shall be included in
gke 1:1e3318a30ddd 12 * all copies or substantial portions of the Software.
gke 1:1e3318a30ddd 13 *
gke 1:1e3318a30ddd 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
gke 1:1e3318a30ddd 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
gke 1:1e3318a30ddd 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
gke 1:1e3318a30ddd 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
gke 1:1e3318a30ddd 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
gke 1:1e3318a30ddd 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
gke 1:1e3318a30ddd 20 * THE SOFTWARE.
gke 1:1e3318a30ddd 21 */
gke 1:1e3318a30ddd 22
gke 1:1e3318a30ddd 23 #ifndef MBED_SDFILESYSTEM_H
gke 1:1e3318a30ddd 24 #define MBED_SDFILESYSTEM_H
gke 1:1e3318a30ddd 25
gke 1:1e3318a30ddd 26 #include "mbed.h"
gke 1:1e3318a30ddd 27 #include "FATFileSystem.h"
gke 1:1e3318a30ddd 28
gke 1:1e3318a30ddd 29 /** Access the filesystem on an SD Card using SPI
gke 1:1e3318a30ddd 30 *
gke 1:1e3318a30ddd 31 * @code
gke 1:1e3318a30ddd 32 * #include "mbed.h"
gke 1:1e3318a30ddd 33 * #include "SDFileSystem.h"
gke 1:1e3318a30ddd 34 *
gke 1:1e3318a30ddd 35 * SDFileSystem sd(p5, p6, p7, p12, "sd"); // mosi, miso, sclk, cs
gke 1:1e3318a30ddd 36 *
gke 1:1e3318a30ddd 37 * int main() {
gke 1:1e3318a30ddd 38 * FILE *fp = fopen("/sd/myfile.txt", "w");
gke 1:1e3318a30ddd 39 * fprintf(fp, "Hello World!\n");
gke 1:1e3318a30ddd 40 * fclose(fp);
gke 1:1e3318a30ddd 41 * }
gke 1:1e3318a30ddd 42 */
gke 1:1e3318a30ddd 43 class SDFileSystem : public FATFileSystem {
gke 1:1e3318a30ddd 44 public:
gke 1:1e3318a30ddd 45
gke 1:1e3318a30ddd 46 /** Create the File System for accessing an SD Card using SPI
gke 1:1e3318a30ddd 47 *
gke 1:1e3318a30ddd 48 * @param mosi SPI mosi pin connected to SD Card
gke 1:1e3318a30ddd 49 * @param miso SPI miso pin conencted to SD Card
gke 1:1e3318a30ddd 50 * @param sclk SPI sclk pin connected to SD Card
gke 1:1e3318a30ddd 51 * @param cs DigitalOut pin used as SD Card chip select
gke 1:1e3318a30ddd 52 * @param name The name used to access the virtual filesystem
gke 1:1e3318a30ddd 53 */
gke 1:1e3318a30ddd 54 SDFileSystem(PinName mosi, PinName miso, PinName sclk, PinName cs, const char* name);
gke 1:1e3318a30ddd 55 virtual int disk_initialize();
gke 1:1e3318a30ddd 56 virtual int disk_write(const char *buffer, int block_number);
gke 1:1e3318a30ddd 57 virtual int disk_read(char *buffer, int block_number);
gke 1:1e3318a30ddd 58 virtual int disk_status();
gke 1:1e3318a30ddd 59 virtual int disk_sync();
gke 1:1e3318a30ddd 60 virtual int disk_sectors();
gke 1:1e3318a30ddd 61
gke 1:1e3318a30ddd 62 int initialise_card(); // unprotect to use to check for disk presence - gke
gke 1:1e3318a30ddd 63
gke 1:1e3318a30ddd 64 protected:
gke 1:1e3318a30ddd 65
gke 1:1e3318a30ddd 66 int _cmd(int cmd, int arg);
gke 1:1e3318a30ddd 67 int _cmdx(int cmd, int arg);
gke 1:1e3318a30ddd 68 int _cmd8();
gke 1:1e3318a30ddd 69 int _cmd58();
gke 1:1e3318a30ddd 70 // int initialise_card();
gke 1:1e3318a30ddd 71 int initialise_card_v1();
gke 1:1e3318a30ddd 72 int initialise_card_v2();
gke 1:1e3318a30ddd 73
gke 1:1e3318a30ddd 74 int _read(char *buffer, int length);
gke 1:1e3318a30ddd 75 int _write(const char *buffer, int length);
gke 1:1e3318a30ddd 76 int _sd_sectors();
gke 1:1e3318a30ddd 77 int _sectors;
gke 1:1e3318a30ddd 78
gke 1:1e3318a30ddd 79 SPI _spi;
gke 1:1e3318a30ddd 80 DigitalOut _cs;
gke 1:1e3318a30ddd 81 };
gke 1:1e3318a30ddd 82
gke 1:1e3318a30ddd 83 #endif