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