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Start rewrite

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- Rewrite everything
- Starting with up-to-date lockpickrcm
This commit is contained in:
Such Meme, Many Skill
2019-11-21 16:02:45 +01:00
parent e8ddc9cf2f
commit ff062a232b
95 changed files with 7043 additions and 1844 deletions
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43
source/libs/fatfs/diskio.c
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@@ -42,11 +42,13 @@ typedef struct {
u32 visit_count;
u8 tweak[0x10];
u8 cached_sector[0x200];
u8 align[8];
} sector_cache_t;
#define MAX_SEC_CACHE_ENTRIES 64
static sector_cache_t *sector_cache = (sector_cache_t*)0x40020000;
static sector_cache_t *sector_cache = NULL;
static u32 secindex = 0;
bool clear_sector_cache = false;
DSTATUS disk_status (
BYTE pdrv /* Physical drive number to identify the drive */
@@ -105,7 +107,7 @@ static inline int _emmc_xts(u32 ks1, u32 ks2, u32 enc, u8 *tweak, bool regen_twe
pdst += 0x10;
}
se_aes_crypt_ecb(ks2, 0, dst, secsize, src, secsize);
se_aes_crypt_ecb(ks2, enc, dst, secsize, src, secsize);
pdst = (u8 *)dst;
@@ -134,14 +136,28 @@ DRESULT disk_read (
switch (pdrv)
{
case 0:
return sdmmc_storage_read(&sd_storage, sector, count, buff) ? RES_OK : RES_ERROR;
if (((u32)buff >= DRAM_START) && !((u32)buff % 8))
return sdmmc_storage_read(&sd_storage, sector, count, buff) ? RES_OK : RES_ERROR;
u8 *buf = (u8 *)SDMMC_UPPER_BUFFER;
if (sdmmc_storage_read(&sd_storage, sector, count, buf))
{
memcpy(buff, buf, 512 * count);
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, cache_sector = false;
bool needs_cache_sector = false;
if (secindex == 0 || clear_sector_cache) {
if (!sector_cache)
sector_cache = (sector_cache_t *)malloc(sizeof(sector_cache_t) * MAX_SEC_CACHE_ENTRIES);
clear_sector_cache = false;
secindex = 0;
}
u32 s = 0;
if (count == 1) {
@@ -159,12 +175,14 @@ DRESULT disk_read (
if (s == secindex && s < MAX_SEC_CACHE_ENTRIES) {
sector_cache[s].sector = sector;
sector_cache[s].visit_count++;
cache_sector = true;
needs_cache_sector = true;
secindex++;
}
}
if (nx_emmc_part_read(&storage, system_part, sector, count, buff)) {
u32 tweak_exp = 0;
bool regen_tweak = true;
if (prev_cluster != sector / 0x20) { // sector in different cluster than last read
prev_cluster = sector / 0x20;
tweak_exp = sector % 0x20;
@@ -177,7 +195,7 @@ DRESULT disk_read (
// fatfs will never pull more than a cluster
_emmc_xts(9, 8, 0, tweak, regen_tweak, tweak_exp, prev_cluster, buff, buff, count * 0x200);
if (cache_sector) {
if (needs_cache_sector) {
memcpy(sector_cache[s].cached_sector, buff, 0x200);
memcpy(sector_cache[s].tweak, tweak, 0x10);
}
@@ -198,7 +216,14 @@ DRESULT disk_write (
{
if (pdrv == 1)
return RES_WRPRT;
return sdmmc_storage_write(&sd_storage, sector, count, (void *)buff) ? RES_OK : RES_ERROR;
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;
}
DRESULT disk_ioctl (