79 lines
1.5 KiB
C
79 lines
1.5 KiB
C
/*
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* sd_card.c
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*
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* Created on: 16.12.2012
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* Author: mfro
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*/
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#include <sd_card.h>
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#include <diskio.h>
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#include <ff.h>
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#include <bas_printf.h>
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#define WELCOME_NAME "WELCOME.MSG"
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#define FLASHCODE_NAME "BASFLASH.BIN"
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void sd_card_init(void)
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{
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DRESULT res;
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FATFS fs;
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FRESULT fres;
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disk_initialize(0);
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res = disk_status(0);
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xprintf("disk status of SD card is %d\r\n", res);
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if (res == RES_OK)
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{
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fres = f_mount(0, &fs);
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xprintf("mount status of SD card fs is %d\r\n", fres);
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if (fres == FR_OK)
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{
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DIR directory;
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FIL file;
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fres = f_opendir(&directory, "\\");
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if (fres == FR_OK)
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{
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FILINFO fi;
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while (((fres = f_readdir(&directory, &fi)) == FR_OK) && fi.fname[0])
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{
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xprintf("%13.13s %d\r\n", fi.fname, fi.fsize);
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}
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}
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else
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{
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xprintf("could not open directory \"\\\" on SD-card! Error code: %d\r\n", fres);
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}
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fres = f_open(&file, WELCOME_NAME, FA_READ);
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if (fres == FR_OK)
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{
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char line[128];
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while (f_gets(line, sizeof(line), &file))
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{
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xprintf("%s", line);
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}
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}
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f_close(&file);
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/*
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* let's see if we find our boot flashing executable on disk
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*/
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fres = f_open(&file, FLASHCODE_NAME, FA_READ);
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if (fres == FR_OK)
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{
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/*
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* yes, load and execute it
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*
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* FIXME: we will need some kind of user confirmation here
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* to avoid unwanted flashing or "bootsector viruses" before going productive
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*/
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}
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f_close(&file);
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}
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f_mount(0, 0L); /* release work area */
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}
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}
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