USBMSD: Use SDFileSystem class and USB non-blocking
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USBMSD_SD.h
00001 /* mbed USBMSD_SD Library, for providing file access to SD cards 00002 * Copyright (c) 2008-2010, sford 00003 * 00004 * Permission is hereby granted, free of charge, to any person obtaining a copy 00005 * of this software and associated documentation files (the "Software"), to deal 00006 * in the Software without restriction, including without limitation the rights 00007 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 00008 * copies of the Software, and to permit persons to whom the Software is 00009 * furnished to do so, subject to the following conditions: 00010 * 00011 * The above copyright notice and this permission notice shall be included in 00012 * all copies or substantial portions of the Software. 00013 * 00014 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 00015 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 00016 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 00017 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 00018 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 00019 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 00020 * THE SOFTWARE. 00021 */ 00022 00023 #ifndef USBMSD_SD_H 00024 #define USBMSD_SD_H 00025 00026 #include "mbed.h" 00027 #include "USBMSD.h" 00028 #include "SDFileSystem.h" 00029 00030 /** Use the SDcard as mass storage device using the USBMSD class 00031 * 00032 * @code 00033 * #include "mbed.h" 00034 * #include "USBMSD_SD.h" 00035 * 00036 * USBMSD_SD sd(p5, p6, p7, p8); 00037 * 00038 * int main() { 00039 * while(1); 00040 * } 00041 * 00042 * @endcode 00043 */ 00044 class USBMSD_SD : public SDFileSystem, public USBMSD { 00045 public: 00046 00047 /** Create the File System for accessing an SD Card using SPI 00048 * 00049 * @param mosi SPI mosi pin connected to SD Card 00050 * @param miso SPI miso pin conencted to SD Card 00051 * @param sclk SPI sclk pin connected to SD Card 00052 * @param cs DigitalOut pin used as SD Card chip select 00053 * @param name The name used to access the virtual filesystem 00054 */ 00055 USBMSD_SD(PinName mosi, PinName miso, PinName sclk, PinName cs, const char* name); 00056 00057 virtual uint64_t disk_size() { return _sectors*512; }; 00058 virtual int disk_status() { return _is_initialized?0:1; }; 00059 00060 virtual int disk_read(uint8_t * data, uint64_t block) { return SDFileSystem::disk_read(data, block); }; 00061 virtual int disk_write(const uint8_t * data, uint64_t block) { return SDFileSystem::disk_write(data, block); }; 00062 virtual int disk_initialize() { return SDFileSystem::disk_initialize(); }; 00063 virtual uint64_t disk_sectors() { return SDFileSystem::disk_sectors(); }; 00064 }; 00065 00066 #endif
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