A fork of the original SDFileSystem, added only stat() for getting file information.
Added code to the original SDFileSystem to export the stat() command. It would now be possible to get the FILEINFO struct of a directory entry to get information such as file size, etc.
SDFileSystem2 usage
#include "SDFileSystem.h" SDFileSystem sd(p5,p6,p7,p8,"sd"); // mosi, miso, sck, cs static void cmd_ls(Stream * chp, int argc, char * argv[]) { DIR * dp; struct dirent * dirp; FILINFO fileInfo; char dirroot[256]; if (argc >= 1) sprintf(dirroot, "/sd/%s", argv[0]); else sprintf(dirroot, "/sd"); chp->printf("Listing directory [%s]\r\n", dirroot); dp = opendir(dirroot); while((dirp = readdir(dp)) != NULL) { if (sd.stat(dirp->d_name, &fileInfo) == 0) { if (fileInfo.fattrib & AM_DIR ) chp->printf("<DIR>\t\t"); else chp->printf("%ld\t\t", fileInfo.fsize); } chp->printf("%s\r\n", dirp->d_name); } closedir(dp); }
SDFileSystem.h
- Committer:
- vpcola
- Date:
- 2015-04-28
- Revision:
- 0:572d27f56fcd
File content as of revision 0:572d27f56fcd:
/* mbed Microcontroller Library * Copyright (c) 2006-2012 ARM Limited * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #ifndef MBED_SDFILESYSTEM_H #define MBED_SDFILESYSTEM_H #include "mbed.h" #include "FATFileSystem.h" #include <stdint.h> /** Access the filesystem on an SD Card using SPI * * @code * #include "mbed.h" * #include "SDFileSystem.h" * * SDFileSystem sd(p5, p6, p7, p12, "sd"); // MOSI, MISO, SCLK, SSEL * * int main() { * FILE *fp = fopen("/sd/mbed.txt", "w"); * fprintf(fp, "Hello World!\n"); * fclose(fp); * } * @endcode */ class SDFileSystem : public FATFileSystem { public: /** Create the File System for accessing an SD Card using SPI * * @param mosi SPI mosi pin connected to SD Card * @param miso SPI miso pin conencted to SD Card * @param sclk SPI sclk pin connected to SD Card * @param cs DigitalOut pin used as SD Card chip select * @param name The name used to access the virtual filesystem */ SDFileSystem(PinName mosi, PinName miso, PinName sclk, PinName cs, const char* name); virtual int disk_initialize(); virtual int disk_status(); virtual int disk_read(uint8_t * buffer, uint64_t block_number); virtual int disk_write(const uint8_t * buffer, uint64_t block_number); virtual int disk_sync(); virtual uint64_t disk_sectors(); protected: int _cmd(int cmd, int arg); int _cmdx(int cmd, int arg); int _cmd8(); int _cmd58(); int initialise_card(); int initialise_card_v1(); int initialise_card_v2(); int _read(uint8_t * buffer, uint32_t length); int _write(const uint8_t *buffer, uint32_t length); uint64_t _sd_sectors(); uint64_t _sectors; SPI _spi; DigitalOut _cs; int cdv; }; #endif