hekate/bootloader/storage/emummc.c
CTCaer 4160037c81 emummc: Add boot entry emuMMC selection
Using the key `emupath` on a boot entry will load the selected emuMMC.
This can also be forced by using the correct boot cfg storage bit and writing the path at the emummc path offset. Check readme for these.

This can only be used if the emuMMC was created via Nyx. because of the raw_based and file_based files that have emuMMC info.
(emupath=emuMMC/RAW1, emupath=emuMMC/SD00, etc)
2020-04-27 09:30:53 +03:00

299 lines
6.9 KiB
C

/*
* Copyright (c) 2019 CTCaer
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <string.h>
#include <stdlib.h>
#include "emummc.h"
#include "sdmmc.h"
#include "../config/config.h"
#include "../config/ini.h"
#include "../gfx/gfx.h"
#include "../libs/fatfs/ff.h"
#include "../mem/heap.h"
#include "../utils/list.h"
#include "../utils/types.h"
extern sdmmc_t sd_sdmmc;
extern sdmmc_storage_t sd_storage;
extern FATFS sd_fs;
extern hekate_config h_cfg;
extern bool sd_mount();
extern void sd_unmount();
void emummc_load_cfg()
{
emu_cfg.enabled = 0;
emu_cfg.path = NULL;
emu_cfg.nintendo_path = NULL;
emu_cfg.sector = 0;
emu_cfg.id = 0;
emu_cfg.file_based_part_size = 0;
emu_cfg.active_part = 0;
emu_cfg.fs_ver = 0;
if (!emu_cfg.emummc_file_based_path)
emu_cfg.emummc_file_based_path = (char *)malloc(0x80);
LIST_INIT(ini_sections);
if (ini_parse(&ini_sections, "emuMMC/emummc.ini", false))
{
LIST_FOREACH_ENTRY(ini_sec_t, ini_sec, &ini_sections, link)
{
if (ini_sec->type == INI_CHOICE)
{
if (strcmp(ini_sec->name, "emummc"))
continue;
LIST_FOREACH_ENTRY(ini_kv_t, kv, &ini_sec->kvs, link)
{
if (!strcmp("enabled", kv->key))
emu_cfg.enabled = atoi(kv->val);
else if (!strcmp("sector", kv->key))
emu_cfg.sector = strtol(kv->val, NULL, 16);
else if (!strcmp("id", kv->key))
emu_cfg.id = strtol(kv->val, NULL, 16);
else if (!strcmp("path", kv->key))
emu_cfg.path = kv->val;
else if (!strcmp("nintendo_path", kv->key))
emu_cfg.nintendo_path = kv->val;
}
break;
}
}
}
}
void emummc_set_path(char *path)
{
FIL fp;
bool found = false;
strcpy(emu_cfg.emummc_file_based_path, path);
strcat(emu_cfg.emummc_file_based_path, "/raw_based");
if (!f_open(&fp, emu_cfg.emummc_file_based_path, FA_READ))
{
if (!f_read(&fp, &emu_cfg.sector, 4, NULL))
if (emu_cfg.sector)
found = true;
}
else
{
strcpy(emu_cfg.emummc_file_based_path, path);
strcat(emu_cfg.emummc_file_based_path, "/file_based");
if (!f_stat(emu_cfg.emummc_file_based_path, NULL))
{
emu_cfg.sector = 0;
emu_cfg.path = path;
found = true;
}
}
if (found)
{
emu_cfg.enabled = 1;
emu_cfg.id = 0;
strcpy(emu_cfg.nintendo_path, path);
strcpy(emu_cfg.nintendo_path, "/Nintendo");
}
}
static int emummc_raw_get_part_off(int part_idx)
{
switch (part_idx)
{
case 0:
return 2;
case 1:
return 0;
case 2:
return 1;
}
return 2;
}
int emummc_storage_init_mmc(sdmmc_storage_t *storage, sdmmc_t *sdmmc)
{
FILINFO fno;
if (!sdmmc_storage_init_mmc(storage, sdmmc, SDMMC_4, SDMMC_BUS_WIDTH_8, 4))
return 2;
if (h_cfg.emummc_force_disable)
return 0;
emu_cfg.active_part = 0;
if (!sd_mount())
goto out;
if (emu_cfg.enabled && !emu_cfg.sector)
{
strcpy(emu_cfg.emummc_file_based_path, emu_cfg.path);
strcat(emu_cfg.emummc_file_based_path, "/eMMC");
if (f_stat(emu_cfg.emummc_file_based_path, &fno))
{
EPRINTF("Failed to open eMMC folder.");
goto out;
}
f_chmod(emu_cfg.emummc_file_based_path, AM_ARC, AM_ARC);
strcat(emu_cfg.emummc_file_based_path, "/00");
if (f_stat(emu_cfg.emummc_file_based_path, &fno))
{
EPRINTF("Failed to open emuMMC rawnand.");
goto out;
}
emu_cfg.file_based_part_size = fno.fsize >> 9;
}
return 0;
out:
return 1;
}
int emummc_storage_end(sdmmc_storage_t *storage)
{
sd_unmount();
sdmmc_storage_end(storage);
return 1;
}
int emummc_storage_read(sdmmc_storage_t *storage, u32 sector, u32 num_sectors, void *buf)
{
FIL fp;
if (!emu_cfg.enabled || h_cfg.emummc_force_disable)
return sdmmc_storage_read(storage, sector, num_sectors, buf);
else if (emu_cfg.sector)
{
sector += emu_cfg.sector;
sector += emummc_raw_get_part_off(emu_cfg.active_part) * 0x2000;
return sdmmc_storage_read(&sd_storage, sector, num_sectors, buf);
}
else
{
if (!emu_cfg.active_part)
{
u32 file_part = sector / emu_cfg.file_based_part_size;
sector = sector % emu_cfg.file_based_part_size;
if (file_part >= 10)
itoa(file_part, emu_cfg.emummc_file_based_path + strlen(emu_cfg.emummc_file_based_path) - 2, 10);
else
{
emu_cfg.emummc_file_based_path[strlen(emu_cfg.emummc_file_based_path) - 2] = '0';
itoa(file_part, emu_cfg.emummc_file_based_path + strlen(emu_cfg.emummc_file_based_path) - 1, 10);
}
}
if (f_open(&fp, emu_cfg.emummc_file_based_path, FA_READ))
{
EPRINTF("Failed to open emuMMC image.");
return 0;
}
f_lseek(&fp, (u64)sector << 9);
if (f_read(&fp, buf, (u64)num_sectors << 9, NULL))
{
EPRINTF("Failed to read emuMMC image.");
f_close(&fp);
return 0;
}
f_close(&fp);
return 1;
}
return 1;
}
int emummc_storage_write(sdmmc_storage_t *storage, u32 sector, u32 num_sectors, void *buf)
{
FIL fp;
if (!emu_cfg.enabled || h_cfg.emummc_force_disable)
return sdmmc_storage_write(storage, sector, num_sectors, buf);
else if (emu_cfg.sector)
{
sector += emu_cfg.sector;
sector += emummc_raw_get_part_off(emu_cfg.active_part) * 0x2000;
return sdmmc_storage_write(&sd_storage, sector, num_sectors, buf);
}
else
{
if (!emu_cfg.active_part)
{
u32 file_part = sector / emu_cfg.file_based_part_size;
sector = sector % emu_cfg.file_based_part_size;
if (file_part >= 10)
itoa(file_part, emu_cfg.emummc_file_based_path + strlen(emu_cfg.emummc_file_based_path) - 2, 10);
else
{
emu_cfg.emummc_file_based_path[strlen(emu_cfg.emummc_file_based_path) - 2] = '0';
itoa(file_part, emu_cfg.emummc_file_based_path + strlen(emu_cfg.emummc_file_based_path) - 1, 10);
}
}
if (f_open(&fp, emu_cfg.emummc_file_based_path, FA_WRITE))
{
gfx_printf("e5\n");
return 0;
}
f_lseek(&fp, (u64)sector << 9);
if (f_write(&fp, buf, (u64)num_sectors << 9, NULL))
{
gfx_printf("e6\n");
f_close(&fp);
return 0;
}
f_close(&fp);
return 1;
}
}
int emummc_storage_set_mmc_partition(sdmmc_storage_t *storage, u32 partition)
{
emu_cfg.active_part = partition;
if (!emu_cfg.enabled || h_cfg.emummc_force_disable)
sdmmc_storage_set_mmc_partition(storage, partition);
else if (emu_cfg.sector)
return 1;
else
{
strcpy(emu_cfg.emummc_file_based_path, emu_cfg.path);
strcat(emu_cfg.emummc_file_based_path, "/eMMC");
switch (partition)
{
case 0:
strcat(emu_cfg.emummc_file_based_path, "/00");
break;
case 1:
strcat(emu_cfg.emummc_file_based_path, "/BOOT0");
break;
case 2:
strcat(emu_cfg.emummc_file_based_path, "/BOOT1");
break;
}
return 1;
}
return 1;
}