mirror of
https://github.com/fail0verflow/mini.git
synced 2024-11-05 19:25:12 +01:00
77 lines
1.7 KiB
C
77 lines
1.7 KiB
C
/*
|
|
mini - a Free Software replacement for the Nintendo/BroadOn IOS.
|
|
glue layer for FatFs
|
|
|
|
Copyright (C) 2008, 2009 Sven Peter <svenpeter@gmail.com>
|
|
Copyright (C) 2008, 2009 Haxx Enterprises <bushing@gmail.com>
|
|
|
|
# This code is licensed to you under the terms of the GNU GPL, version 2;
|
|
# see file COPYING or http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
|
|
*/
|
|
|
|
#include "diskio.h"
|
|
#include "string.h"
|
|
#include "sdmmc.h"
|
|
|
|
#ifndef MEM2_BSS
|
|
#define MEM2_BSS
|
|
#endif
|
|
|
|
static u8 buffer[512] MEM2_BSS ALIGNED(32);
|
|
|
|
// Initialize a Drive
|
|
DSTATUS disk_initialize (BYTE drv) {
|
|
if (sdmmc_check_card(SDMMC_DEFAULT_DEVICE) == SDMMC_NO_CARD)
|
|
return STA_NOINIT;
|
|
|
|
sdmmc_ack_card(SDMMC_DEFAULT_DEVICE);
|
|
return disk_status(drv);
|
|
}
|
|
|
|
// Return Disk Status
|
|
DSTATUS disk_status (BYTE drv) {
|
|
(void)drv;
|
|
if (sdmmc_check_card(SDMMC_DEFAULT_DEVICE) == SDMMC_INSERTED)
|
|
return 0;
|
|
else
|
|
return STA_NODISK;
|
|
}
|
|
|
|
// Read Sector(s)
|
|
DRESULT disk_read (BYTE drv, BYTE *buff, DWORD sector, BYTE count) {
|
|
int i;
|
|
(void)drv;
|
|
for (i = 0; i < count; i++) {
|
|
if (sdmmc_read(SDMMC_DEFAULT_DEVICE, sector+i, 1, buffer) != 0)
|
|
return RES_ERROR;
|
|
memcpy(buff + i * 512, buffer, 512);
|
|
}
|
|
|
|
return RES_OK;
|
|
}
|
|
|
|
// Write Sector(s)
|
|
#if _READONLY == 0
|
|
DRESULT disk_write (BYTE drv, const BYTE *buff, DWORD sector, BYTE count) {
|
|
int i;
|
|
|
|
for (i = 0; i < count; i++) {
|
|
memcpy(buffer, buff + i * 512, 512);
|
|
|
|
if(sdmmc_write(SDMMC_DEFAULT_DEVICE, sector + i, 1, buffer) != 0)
|
|
return RES_ERROR;
|
|
}
|
|
|
|
return RES_OK;
|
|
}
|
|
#endif /* _READONLY */
|
|
|
|
#if _USE_IOCTL == 1
|
|
DRESULT disk_ioctl (BYTE drv, BYTE ctrl, void *buff) {
|
|
if (ctrl == CTRL_SYNC)
|
|
return RES_OK;
|
|
|
|
return RES_PARERR;
|
|
}
|
|
#endif /* _USE_IOCTL */
|