nold/Atmosphere
1
0
Fork 0
mirror of https://github.com/Atmosphere-NX/Atmosphere synced 2024-12-22 04:11:18 +00:00
Code Issues Projects Releases Packages Wiki Activity

git subrepo pull emummc

Browse source 
subrepo:
  subdir:   "emummc"
  merged:   "2e001dd2"
upstream:
  origin:   "https://github.com/m4xw/emuMMC"
  branch:   "develop"
  commit:   "29deabb2"
git-subrepo:
  version:  "0.4.1"
  origin:   "???"
  commit:   "???"
This commit is contained in:
Michael Scire 2021-09-16 16:28:04 -07:00 committed by SciresM
parent 89541c8042
commit e2a74a9e38
4 changed files with 107 additions and 44 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
emummc/.gitrepo vendored
View file

@ -6,7 +6,7 @@
[subrepo]
remote = https://github.com/m4xw/emuMMC
branch = develop
commit = cbc294c390ed73bb281bc1028a8899c053427112
commit = 29deabb2cd46434c0d1b237cb74a823c02869f62
parent = 38f9a76ba028995ed3274da3a45b0254f09d1f59
method = rebase
cmdver = 0.4.1

11
emummc/source/FS/FS.h vendored
View file

@ -37,4 +37,15 @@
#define BOOT_PARTITION_SIZE 0x2000
#define FS_READ_WRITE_ERROR 1048
#define NAND_PATROL_SECTOR 0xC20
#define NAND_PATROL_OFFSET 0x184000
typedef struct _fs_nand_patrol_t
{
uint8_t hmac[0x20];
unsigned int offset;
unsigned int count;
uint8_t rsvd[0x1D8];
} fs_nand_patrol_t;
#endif /* __FS_H__ */

126
emummc/source/emuMMC/emummc.c vendored
View file

@ -89,7 +89,7 @@ static void _sdmmc_ensure_initialized(void)
}
}
static void _file_based_update_filename(char *outFilename, u32 sd_path_len, u32 part_idx)
static void _file_based_update_filename(char *outFilename, unsigned int sd_path_len, unsigned int part_idx)
{
snprintf(outFilename + sd_path_len, 3, "%02d", part_idx);
}
@ -103,9 +103,7 @@ static void _file_based_emmc_finalize(void)
f_close(&f_emu.fp_boot1);
for (int i = 0; i < f_emu.parts; i++)
{
f_close(&f_emu.fp_gpp[i]);
}
// Force unmount FAT volume.
f_mount(NULL, "", 1);
@ -114,12 +112,59 @@ static void _file_based_emmc_finalize(void)
}
}
static void _nand_patrol_ensure_integrity(void)
{
fs_nand_patrol_t nand_patrol;
static bool nand_patrol_checked = false;
if (!nand_patrol_checked)
{
if (emuMMC_ctx.EMMC_Type == emuMMC_SD_Raw)
{
unsigned int nand_patrol_sector = emuMMC_ctx.EMMC_StoragePartitionOffset + NAND_PATROL_SECTOR;
if (!sdmmc_storage_read(&sd_storage, nand_patrol_sector, 1, &nand_patrol))
goto out;
// Clear nand patrol if last offset exceeds storage.
if (nand_patrol.offset > sd_storage.sec_cnt)
{
memset(&nand_patrol, 0, sizeof(fs_nand_patrol_t));
sdmmc_storage_write(&sd_storage, nand_patrol_sector, 1, &nand_patrol);
}
}
else if (emuMMC_ctx.EMMC_Type == emuMMC_SD_File && fat_mounted)
{
FIL *fp = &f_emu.fp_boot0;
if (f_lseek(fp, NAND_PATROL_OFFSET) != FR_OK)
goto out;
if (f_read_fast(fp, &nand_patrol, sizeof(fs_nand_patrol_t)) != FR_OK)
goto out;
// Clear nand patrol if last offset exceeds total file based size.
if (nand_patrol.offset > f_emu.total_sect)
{
memset(&nand_patrol, 0, sizeof(fs_nand_patrol_t));
if (f_lseek(fp, NAND_PATROL_OFFSET) != FR_OK)
goto out;
if (f_write_fast(fp, &nand_patrol, sizeof(fs_nand_patrol_t)) != FR_OK)
goto out;
f_sync(fp);
}
}
out:
nand_patrol_checked = true;
}
}
void sdmmc_finalize(void)
{
if (!sdmmc_storage_end(&sd_storage))
{
fatal_abort(Fatal_InitSD);
}
storageSDinitialized = false;
}
@ -137,14 +182,14 @@ static void _file_based_emmc_initialize(void)
memcpy(path + path_len, "BOOT0", 6);
if (f_open(&f_emu.fp_boot0, path, FA_READ | FA_WRITE) != FR_OK)
fatal_abort(Fatal_FatfsFileOpen);
if (!f_expand_cltbl(&f_emu.fp_boot0, 0x400, f_emu.clmt_boot0, f_size(&f_emu.fp_boot0)))
if (!f_expand_cltbl(&f_emu.fp_boot0, EMUMMC_FP_CLMT_COUNT, f_emu.clmt_boot0, f_size(&f_emu.fp_boot0)))
fatal_abort(Fatal_FatfsMemExhaustion);
// Open BOOT1 physical partition.
memcpy(path + path_len, "BOOT1", 6);
if (f_open(&f_emu.fp_boot1, path, FA_READ | FA_WRITE) != FR_OK)
fatal_abort(Fatal_FatfsFileOpen);
if (!f_expand_cltbl(&f_emu.fp_boot1, 0x400, f_emu.clmt_boot1, f_size(&f_emu.fp_boot1)))
if (!f_expand_cltbl(&f_emu.fp_boot1, EMUMMC_FP_CLMT_COUNT, f_emu.clmt_boot1, f_size(&f_emu.fp_boot1)))
fatal_abort(Fatal_FatfsMemExhaustion);
// Open handles for GPP physical partition files.
@ -152,15 +197,14 @@ static void _file_based_emmc_initialize(void)
if (f_open(&f_emu.fp_gpp[0], path, FA_READ | FA_WRITE) != FR_OK)
fatal_abort(Fatal_FatfsFileOpen);
if (!f_expand_cltbl(&f_emu.fp_gpp[0], 0x400, &f_emu.clmt_gpp[0], f_size(&f_emu.fp_gpp[0])))
if (!f_expand_cltbl(&f_emu.fp_gpp[0], EMUMMC_FP_CLMT_COUNT, &f_emu.clmt_gpp[0], f_size(&f_emu.fp_gpp[0])))
fatal_abort(Fatal_FatfsMemExhaustion);
f_emu.part_size = f_size(&f_emu.fp_gpp[0]) >> 9;
f_emu.part_size = (uint64_t)f_size(&f_emu.fp_gpp[0]) >> 9;
f_emu.total_sect = f_emu.part_size;
// Iterate folder for split parts and stop if next doesn't exist.
// Supports up to 32 parts of any size.
// TODO: decide on max parts and define them. (hekate produces up to 30 parts on 1GB mode.)
for (f_emu.parts = 1; f_emu.parts < 32; f_emu.parts++)
for (f_emu.parts = 1; f_emu.parts < EMUMMC_FILE_MAX_PARTS; f_emu.parts++)
{
_file_based_update_filename(path, path_len, f_emu.parts);
@ -173,8 +217,13 @@ static void _file_based_emmc_initialize(void)
return;
}
if (!f_expand_cltbl(&f_emu.fp_gpp[f_emu.parts], 0x400, &f_emu.clmt_gpp[f_emu.parts * 0x400], f_size(&f_emu.fp_gpp[f_emu.parts])))
if (!f_expand_cltbl(&f_emu.fp_gpp[f_emu.parts], EMUMMC_FP_CLMT_COUNT,
&f_emu.clmt_gpp[f_emu.parts * EMUMMC_FP_CLMT_COUNT], f_size(&f_emu.fp_gpp[f_emu.parts])))
{
fatal_abort(Fatal_FatfsMemExhaustion);
}
f_emu.total_sect += (uint64_t)f_size(&f_emu.fp_gpp[f_emu.parts]) >> 9;
}
}
@ -189,7 +238,7 @@ bool sdmmc_initialize(void)
{
storageSDinitialized = true;
// File based emummc.
// Init file based emummc.
if ((emuMMC_ctx.EMMC_Type == emuMMC_SD_File) && !fat_mounted)
{
if (f_mount(&f_emu.sd_fs, "", 1) != FR_OK)
@ -200,6 +249,9 @@ bool sdmmc_initialize(void)
_file_based_emmc_initialize();
}
// Check if nand patrol offset is inside limits.
_nand_patrol_ensure_integrity();
break;
}
@ -207,9 +259,7 @@ bool sdmmc_initialize(void)
}
if (!storageSDinitialized)
{
fatal_abort(Fatal_InitSD);
}
}
return storageSDinitialized;
@ -239,19 +289,17 @@ sdmmc_accessor_t *sdmmc_accessor_get(int mmc_id)
void mutex_lock_handler(int mmc_id)
{
if (custom_driver)
{
lock_mutex(sd_mutex);
}
lock_mutex(nand_mutex);
}
void mutex_unlock_handler(int mmc_id)
{
unlock_mutex(nand_mutex);
if (custom_driver)
{
unlock_mutex(sd_mutex);
}
}
int sdmmc_nand_get_active_partition_index()
@ -271,12 +319,16 @@ int sdmmc_nand_get_active_partition_index()
static uint64_t emummc_read_write_inner(void *buf, unsigned int sector, unsigned int num_sectors, bool is_write)
{
if ((emuMMC_ctx.EMMC_Type == emuMMC_SD_Raw))
if (emuMMC_ctx.EMMC_Type == emuMMC_SD_Raw)
{
// raw partition sector offset: emuMMC_ctx.EMMC_StoragePartitionOffset.
sector += emuMMC_ctx.EMMC_StoragePartitionOffset;
// Set physical partition offset.
sector += (sdmmc_nand_get_active_partition_index() * BOOT_PARTITION_SIZE);
if (__builtin_expect(sector + num_sectors > sd_storage.sec_cnt, 0))
return 0; // Out of bounds. Can only happen with Nand Patrol if resized.
if (!is_write)
return sdmmc_storage_read(&sd_storage, sector, num_sectors, buf);
else
@ -290,6 +342,9 @@ static uint64_t emummc_read_write_inner(void *buf, unsigned int sector, unsigned
case FS_EMMC_PARTITION_GPP:
if (f_emu.parts)
{
if (__builtin_expect(sector + num_sectors > f_emu.total_sect, 0))
return 0; // Out of bounds. Can only happen with Nand Patrol if resized.
fp = &f_emu.fp_gpp[sector / f_emu.part_size];
sector = sector % f_emu.part_size;
@ -300,21 +355,21 @@ static uint64_t emummc_read_write_inner(void *buf, unsigned int sector, unsigned
while (remaining > 0) {
const unsigned int cur_sectors = MIN(remaining, f_emu.part_size - sector);
if (f_lseek(fp, (u64)sector << 9) != FR_OK)
if (f_lseek(fp, (uint64_t)sector << 9) != FR_OK)
return 0; // Out of bounds.
if (is_write)
if (!is_write)
{
if (f_write_fast(fp, buf, (u64)cur_sectors << 9) != FR_OK)
if (f_read_fast(fp, buf, (uint64_t)cur_sectors << 9) != FR_OK)
return 0;
}
else
{
if (f_read_fast(fp, buf, (u64)cur_sectors << 9) != FR_OK)
if (f_write_fast(fp, buf, (uint64_t)cur_sectors << 9) != FR_OK)
return 0;
}
buf = (char *)buf + ((u64)cur_sectors << 9);
buf = (char *)buf + ((uint64_t)cur_sectors << 9);
remaining -= cur_sectors;
sector = 0;
++fp;
@ -324,28 +379,25 @@ static uint64_t emummc_read_write_inner(void *buf, unsigned int sector, unsigned
}
}
else
{
fp = &f_emu.fp_gpp[0];
}
break;
case FS_EMMC_PARTITION_BOOT1:
fp = &f_emu.fp_boot1;
break;
case FS_EMMC_PARTITION_BOOT0:
fp = &f_emu.fp_boot0;
break;
}
if (f_lseek(fp, (u64)sector << 9) != FR_OK)
return 0; // Out of bounds.
if (f_lseek(fp, (uint64_t)sector << 9) != FR_OK)
return 0; // Out of bounds. Can only happen with Nand Patrol if resized.
uint64_t res = 0;
if (!is_write)
res = !f_read_fast(fp, buf, (u64)num_sectors << 9);
return !f_read_fast(fp, buf, (uint64_t)num_sectors << 9);
else
res = !f_write_fast(fp, buf, (u64)num_sectors << 9);
return res;
return !f_write_fast(fp, buf, (uint64_t)num_sectors << 9);
}
// Controller open wrapper
@ -382,9 +434,7 @@ uint64_t sdmmc_wrapper_controller_close(int mmc_id)
if (_this != NULL)
{
if (mmc_id == FS_SDMMC_SD)
{
return 0;
}
if (mmc_id == FS_SDMMC_EMMC)
{
@ -504,8 +554,6 @@ uint64_t sdmmc_wrapper_write(int mmc_id, unsigned int sector, unsigned int num_s
mutex_lock_handler(mmc_id);
_current_accessor = _this;
sector += 0;
// Call hekates driver.
if (sdmmc_storage_write(&sd_storage, sector, num_sectors, buf))
{

12
emummc/source/emuMMC/emummc.h vendored
View file

@ -36,6 +36,9 @@ extern "C" {
#include "../FS/FS.h"
#include "../libs/fatfs/ff.h"
#define EMUMMC_FILE_MAX_PARTS 32
#define EMUMMC_FP_CLMT_COUNT 1024
// FS typedefs
typedef sdmmc_accessor_t *(*_sdmmc_accessor_gc)();
typedef sdmmc_accessor_t *(*_sdmmc_accessor_sd)();
@ -63,11 +66,12 @@ typedef struct _file_based_ctxt
uint64_t parts;
uint64_t part_size;
FIL fp_boot0;
DWORD clmt_boot0[0x400];
DWORD clmt_boot0[EMUMMC_FP_CLMT_COUNT];
FIL fp_boot1;
DWORD clmt_boot1[0x400];
FIL fp_gpp[32];
DWORD clmt_gpp[0x8000];
DWORD clmt_boot1[EMUMMC_FP_CLMT_COUNT];
FIL fp_gpp[EMUMMC_FILE_MAX_PARTS];
DWORD clmt_gpp[EMUMMC_FILE_MAX_PARTS * EMUMMC_FP_CLMT_COUNT];
uint64_t total_sect;
} file_based_ctxt;
#ifdef __cplusplus