72 lines
1.3 KiB
C
72 lines
1.3 KiB
C
|
/*
|
||
|
|
* fs.c
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <stddef.h>
|
||
|
|
#include "fs.h"
|
||
|
|
#include "fatfs/ff.h"
|
||
|
|
|
||
|
|
static FATFS fs;
|
||
|
|
|
||
|
|
int mountSD()
|
||
|
|
{
|
||
|
|
if (f_mount(&fs, "0:", 1) != FR_OK) {
|
||
|
|
//printF("Failed to mount SD card!");
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
//printF("Mounted SD card");
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
int unmountSD()
|
||
|
|
{
|
||
|
|
if (f_mount(NULL, "0:", 1) != FR_OK) {
|
||
|
|
//printF("Failed to mount SD card!");
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
//printF("Unmounted SD card");
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
int fileReadOffset(u8 *dest, const char *path, u32 size, u32 offset){
|
||
|
|
FRESULT fr;
|
||
|
|
FIL fp;
|
||
|
|
u32 br = 0;
|
||
|
|
|
||
|
|
fr = f_open(&fp, path, FA_READ);
|
||
|
|
if (fr != FR_OK)goto error;
|
||
|
|
|
||
|
|
if (!size) size = f_size(&fp);
|
||
|
|
if (offset) {
|
||
|
|
fr = f_lseek(&fp, offset);
|
||
|
|
if (fr != FR_OK) goto error;
|
||
|
|
}
|
||
|
|
|
||
|
|
fr = f_read(&fp, dest, size, &br);
|
||
|
|
if (fr != FR_OK) goto error;
|
||
|
|
|
||
|
|
fr = f_close(&fp);
|
||
|
|
if (fr != FR_OK) goto error;
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
error:
|
||
|
|
f_close(&fp);
|
||
|
|
return fr;
|
||
|
|
}
|
||
|
|
|
||
|
|
int fileRead(u8 *dest, const char *path, u32 size){
|
||
|
|
return fileReadOffset(dest, path, size, 0);
|
||
|
|
}
|
||
|
|
|
||
|
|
int fileWrite(const u8 *buffer, const char *path, u32 size){
|
||
|
|
FRESULT fr;
|
||
|
|
FIL fp;
|
||
|
|
u32 br = 0;
|
||
|
|
|
||
|
|
if(f_open(&fp, path, FA_WRITE | FA_OPEN_ALWAYS) == FR_OK){
|
||
|
|
fr = f_write(&fp, buffer, size, &br);
|
||
|
|
f_close(&fp);
|
||
|
|
if (fr == FR_OK && br == size) return 0;
|
||
|
|
}
|
||
|
|
return fr;
|
||
|
|
}
|