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https://github.com/wiiu-env/wiiu-nanddumper-payload.git
synced 2024-06-01 18:08:50 +02:00
f76b9bd1d7
in libfat: allow only fat32, try to parse it as fat32 even if a different partition type is specified.
41 lines
1.3 KiB
C
41 lines
1.3 KiB
C
#include <stdio.h>
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#include "types.h"
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#include "imports.h"
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#include "devices.h"
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#include "sdio.h"
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#include "text.h"
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#include "sd_fat.h"
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unsigned char sd_io_buffer[0x40000] __attribute__((aligned(0x40))) __attribute__((section(".io_buffer")));
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int sd_fat_read(unsigned long sector, unsigned char *buffer, unsigned long sector_count)
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{
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// It seems that sdcard_readwrite overwrite more bytes than requested with 0xff.... So I use io_buffer to read it.
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if (sector_count * SDIO_BYTES_PER_SECTOR > sizeof(sd_io_buffer)) return 0;
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int result = sdcard_readwrite(SDIO_READ, sd_io_buffer, sector_count, SDIO_BYTES_PER_SECTOR, sector, NULL, DEVICE_ID_SDCARD_PATCHED);
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if (result) return 0;
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memcpy(buffer, sd_io_buffer, sector_count * SDIO_BYTES_PER_SECTOR);
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return 1;
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}
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int sd_fat_write(unsigned long sector, unsigned char *buffer, unsigned long sector_count)
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{
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if (sector_count * SDIO_BYTES_PER_SECTOR > sizeof(sd_io_buffer)) return 0;
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int result = sdcard_readwrite(SDIO_WRITE, buffer, sector_count, SDIO_BYTES_PER_SECTOR, sector, NULL, DEVICE_ID_SDCARD_PATCHED);
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return result ? 0 : 1;
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}
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int InitSDCardFAT32()
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{
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fl_init();
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int result = fl_attach_media(sd_fat_read, sd_fat_write);
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if (result != FAT_INIT_OK)
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{
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_printf(20, 40, "FAT32 attach failed %d", result);
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return result;
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}
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return 0;
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}
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