mirror of
https://github.com/Atmosphere-NX/Atmosphere
synced 2024-12-23 12:51:13 +00:00
65 lines
No EOL
2.1 KiB
C++
65 lines
No EOL
2.1 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 <string.h>
|
|
#include "fatal_types.hpp"
|
|
#include "fatal_payload_manager.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;
|
|
|
|
void FatalPayloadManager::LoadPayloadFromSdCard() {
|
|
FILE *f = fopen("sdmc:/atmosphere/reboot_payload.bin", "rb");
|
|
if (f == NULL) {
|
|
return;
|
|
}
|
|
ON_SCOPE_EXIT { fclose(f); };
|
|
|
|
memset(g_reboot_payload, 0xFF, sizeof(g_reboot_payload));
|
|
fread(g_reboot_payload, 1, IRAM_PAYLOAD_MAX_SIZE, f);
|
|
g_payload_loaded = true;
|
|
}
|
|
|
|
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));
|
|
}
|
|
}
|
|
|
|
void FatalPayloadManager::RebootToPayload() {
|
|
/* 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();
|
|
} |