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Make emmc writable + merge hekate fixes

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This commit is contained in:
Such Meme, Many Skill
2020-01-06 14:24:29 +01:00
parent ef76834ef4
commit 02504c8a36
5 changed files with 57 additions and 23 deletions
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46
source/libs/fatfs/diskio.c
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@@ -150,7 +150,7 @@ DRESULT disk_read (
__attribute__ ((aligned (16))) static u8 tweak[0x10];
__attribute__ ((aligned (16))) static u64 prev_cluster = -1;
__attribute__ ((aligned (16))) static u32 prev_sector = 0;
bool needs_cache_sector = false;
//bool needs_cache_sector = false;
/*
if (secindex == 0 || clear_sector_cache) {
if (!sector_cache)
@@ -212,20 +212,46 @@ DRESULT disk_read (
DRESULT disk_write (
BYTE pdrv, /* Physical drive number to identify the drive */
const BYTE *buff, /* Data to be written */
BYTE *buff, /* Data to be written */
DWORD sector, /* Start sector in LBA */
UINT count /* Number of sectors to write */
)
{
if (pdrv == 1)
return RES_WRPRT;
switch (pdrv){
case 0:
if (((u32)buff >= DRAM_START) && !((u32)buff % 8))
return sdmmc_storage_write(&sd_storage, sector, count, (void *)buff) ? RES_OK : RES_ERROR;
u8 *buf = (u8 *)SDMMC_UPPER_BUFFER; //TODO: define this somewhere.
memcpy(buf, buff, 512 * count);
if (sdmmc_storage_write(&sd_storage, sector, count, buf))
return RES_OK;
return RES_ERROR;
case 1:;
__attribute__ ((aligned (16))) static u8 tweak[0x10];
__attribute__ ((aligned (16))) static u64 prev_cluster = -1;
__attribute__ ((aligned (16))) static u32 prev_sector = 0;
u32 tweak_exp = 0;
bool regen_tweak = true;
if (((u32)buff >= DRAM_START) && !((u32)buff % 8))
return sdmmc_storage_write(&sd_storage, sector, count, (void *)buff) ? RES_OK : RES_ERROR;
u8 *buf = (u8 *)SDMMC_UPPER_BUFFER; //TODO: define this somewhere.
memcpy(buf, buff, 512 * count);
if (sdmmc_storage_write(&sd_storage, sector, count, buf))
return RES_OK;
if (prev_cluster != sector / 0x20) { // sector in different cluster than last read
prev_cluster = sector / 0x20;
tweak_exp = sector % 0x20;
} else if (sector > prev_sector) { // sector in same cluster and past last sector
tweak_exp = sector - prev_sector - 1;
regen_tweak = false;
} else { // sector in same cluster and before or same as last sector
tweak_exp = sector % 0x20;
}
if (_emmc_xts(9, 8, 1, tweak, regen_tweak, tweak_exp, prev_cluster, buff, buff, count * 0x200)){
if (nx_emmc_part_write(&storage, system_part, sector, count, buff)){
prev_sector = sector + count - 1;
return RES_OK;
}
}
return RES_ERROR;
}
return RES_ERROR;
}

2
source/libs/fatfs/diskio.h
View File

@@ -31,7 +31,7 @@ typedef enum {
DSTATUS disk_initialize (BYTE pdrv);
DSTATUS disk_status (BYTE pdrv);
DRESULT disk_read (BYTE pdrv, BYTE* buff, DWORD sector, UINT count);
DRESULT disk_write (BYTE pdrv, const BYTE* buff, DWORD sector, UINT count);
DRESULT disk_write (BYTE pdrv, BYTE* buff, DWORD sector, UINT count);
DRESULT disk_ioctl (BYTE pdrv, BYTE cmd, void* buff);