mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
synced 2025-10-31 11:15:51 +01:00
102 lines
3.5 KiB
C++
102 lines
3.5 KiB
C++
/*
|
|
* Copyright (c) 2018 Atmosphère-NX
|
|
*
|
|
* 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 <switch.h>
|
|
#include <stratosphere.hpp>
|
|
#include <strings.h>
|
|
#include "bpcmitm_reboot_manager.hpp"
|
|
#include "../utils.hpp"
|
|
|
|
/* TODO: Find a way to pre-populate this with the contents of fusee-primary. */
|
|
static u8 g_reboot_payload[IRAM_PAYLOAD_MAX_SIZE] __attribute__ ((aligned (0x1000)));
|
|
static u8 g_work_page[0x1000] __attribute__ ((aligned (0x1000)));
|
|
static bool g_payload_loaded = false;
|
|
static BpcRebootType g_reboot_type = BpcRebootType::ToPayload;
|
|
|
|
void BpcRebootManager::Initialize() {
|
|
/* Open payload file. */
|
|
FsFile payload_file;
|
|
if (R_FAILED(Utils::OpenSdFile("/atmosphere/reboot_payload.bin", FS_OPEN_READ, &payload_file))) {
|
|
return;
|
|
}
|
|
ON_SCOPE_EXIT { fsFileClose(&payload_file); };
|
|
|
|
/* Clear payload buffer */
|
|
std::memset(g_reboot_payload, 0xFF, sizeof(g_reboot_payload));
|
|
|
|
/* Read payload file. */
|
|
size_t actual_size;
|
|
fsFileRead(&payload_file, 0, g_reboot_payload, IRAM_PAYLOAD_MAX_SIZE, &actual_size);
|
|
|
|
g_payload_loaded = true;
|
|
|
|
/* Figure out what kind of reboot we're gonna be doing. */
|
|
{
|
|
char reboot_type[0x40] = {0};
|
|
u64 reboot_type_size = 0;
|
|
if (R_SUCCEEDED(Utils::GetSettingsItemValue("atmosphere", "power_menu_reboot_function", reboot_type, sizeof(reboot_type)-1, &reboot_type_size))) {
|
|
if (strcasecmp(reboot_type, "stock") == 0 || strcasecmp(reboot_type, "normal") == 0 || strcasecmp(reboot_type, "standard") == 0) {
|
|
g_reboot_type = BpcRebootType::Standard;
|
|
} else if (strcasecmp(reboot_type, "rcm") == 0) {
|
|
g_reboot_type = BpcRebootType::ToRcm;
|
|
} else if (strcasecmp(reboot_type, "payload") == 0) {
|
|
g_reboot_type = BpcRebootType::ToPayload;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void ClearIram() {
|
|
/* Make page FFs. */
|
|
memset(g_work_page, 0xFF, sizeof(g_work_page));
|
|
|
|
/* Overwrite all of IRAM with FFs. */
|
|
for (size_t ofs = 0; ofs < IRAM_PAYLOAD_MAX_SIZE; ofs += sizeof(g_work_page)) {
|
|
CopyToIram(IRAM_PAYLOAD_BASE + ofs, g_work_page, sizeof(g_work_page));
|
|
}
|
|
}
|
|
|
|
static void DoRebootToPayload() {
|
|
/* If we don't actually have a payload loaded, just go to RCM. */
|
|
if (!g_payload_loaded) {
|
|
RebootToRcm();
|
|
}
|
|
|
|
/* Ensure clean IRAM state. */
|
|
ClearIram();
|
|
|
|
/* Copy in payload. */
|
|
for (size_t ofs = 0; ofs < sizeof(g_reboot_payload); ofs += 0x1000) {
|
|
CopyToIram(IRAM_PAYLOAD_BASE + ofs, &g_reboot_payload[ofs], 0x1000);
|
|
}
|
|
|
|
RebootToIramPayload();
|
|
}
|
|
|
|
Result BpcRebootManager::PerformReboot() {
|
|
switch (g_reboot_type) {
|
|
case BpcRebootType::Standard:
|
|
return RESULT_FORWARD_TO_SESSION;
|
|
case BpcRebootType::ToRcm:
|
|
RebootToRcm();
|
|
return 0;
|
|
case BpcRebootType::ToPayload:
|
|
default:
|
|
DoRebootToPayload();
|
|
return 0;
|
|
}
|
|
}
|