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emmc bis storage

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This commit is contained in:
Christoph Baumann
2025-04-30 11:29:06 +02:00
parent 61e91f79c1
commit 2440318cb5
4 changed files with 16 additions and 11 deletions
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18
bdk/storage/nx_emmc_bis.c
View File

@@ -56,6 +56,7 @@ static u32 emu_offset = 0;
static emmc_part_t *system_part = NULL;
static u32 *cache_lookup_tbl = (u32 *)NX_BIS_LOOKUP_ADDR;
static bis_cache_t *bis_cache = (bis_cache_t *)NX_BIS_CACHE_ADDR;
static sdmmc_storage_t *emu_storage = NULL;
static int nx_emmc_bis_write_block(u32 sector, u32 count, void *buff, bool flush)
{
@@ -95,10 +96,10 @@ static int nx_emmc_bis_write_block(u32 sector, u32 count, void *buff, bool flush
return 1; // Encryption error.
// If not reading from cache, do a regular read and decrypt.
if (!emu_offset)
if (!emu_storage)
res = emmc_part_write(system_part, sector, count, bis_cache->dma_buff);
else
res = sdmmc_storage_write(&sd_storage, emu_offset + system_part->lba_start + sector, count, bis_cache->dma_buff);
res = sdmmc_storage_write(emu_storage, emu_offset + system_part->lba_start + sector, count, bis_cache->dma_buff);
if (!res)
return 1; // R/W error.
@@ -155,10 +156,10 @@ static int nx_emmc_bis_read_block_normal(u32 sector, u32 count, void *buff)
u32 sector_in_cluster = sector % BIS_CLUSTER_SECTORS;
// If not reading from cache, do a regular read and decrypt.
if (!emu_offset)
if (!emu_storage)
res = emmc_part_read(system_part, sector, count, bis_cache->dma_buff);
else
res = sdmmc_storage_read(&sd_storage, emu_offset + system_part->lba_start + sector, count, bis_cache->dma_buff);
res = sdmmc_storage_read(emu_storage, emu_offset + system_part->lba_start + sector, count, bis_cache->dma_buff);
if (!res)
return 1; // R/W error.
@@ -212,10 +213,10 @@ static int nx_emmc_bis_read_block_cached(u32 sector, u32 count, void *buff)
cache_lookup_tbl[cluster] = bis_cache->top_idx;
// Read the whole cluster the sector resides in.
if (!emu_offset)
if (!emu_storage)
res = emmc_part_read(system_part, cluster_sector, BIS_CLUSTER_SECTORS, bis_cache->dma_buff);
else
res = sdmmc_storage_read(&sd_storage, emu_offset + system_part->lba_start + cluster_sector, BIS_CLUSTER_SECTORS, bis_cache->dma_buff);
res = sdmmc_storage_read(emu_storage, emu_offset + system_part->lba_start + cluster_sector, BIS_CLUSTER_SECTORS, bis_cache->dma_buff);
if (!res)
return 1; // R/W error.
@@ -292,10 +293,11 @@ int nx_emmc_bis_write(u32 sector, u32 count, void *buff)
return 1;
}
void nx_emmc_bis_init(emmc_part_t *part, bool enable_cache, u32 emummc_offset)
void nx_emmc_bis_init(emmc_part_t *part, bool enable_cache, sdmmc_storage_t *storage, u32 emummc_offset)
{
system_part = part;
emu_offset = emummc_offset;
emu_storage = storage;
_nx_emmc_bis_cluster_cache_init(enable_cache);
@@ -322,4 +324,6 @@ void nx_emmc_bis_end()
{
_nx_emmc_bis_flush_cache();
system_part = NULL;
emu_storage = NULL;
emu_offset = 0;
}

3
bdk/storage/nx_emmc_bis.h
View File

@@ -229,7 +229,8 @@ typedef struct _nx_emmc_cal0_t
int nx_emmc_bis_read(u32 sector, u32 count, void *buff);
int nx_emmc_bis_write(u32 sector, u32 count, void *buff);
void nx_emmc_bis_init(emmc_part_t *part, bool enable_cache, u32 emummc_offset);
// when storage == NULL, use active emummc config, otherwise, access storage at offset
void nx_emmc_bis_init(emmc_part_t *part, bool enable_cache, sdmmc_storage_t *storage, u32 emummc_offset);
void nx_emmc_bis_end();
#endif