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Changed reboot logic

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I have replaced the reboot logic with the new bpcRebootSystem function, because it doesn't need as much code as the other method and it's way easier to understand.
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IGambleNull 2019-09-19 13:34:50 +02:00 • committed by GitHub
parent 89c484414b
commit 2747024ff5
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GPG key ID: 4AEE18F83AFDEB23
1 changed files with 6 additions and 64 deletions
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70
troposphere/reboot_to_payload/source/main.c
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@ -1,76 +1,19 @@
#include <string.h>
#include <stdio.h>
#include <stdbool.h>
#include <switch.h>
#define IRAM_PAYLOAD_MAX_SIZE 0x2F000
#define IRAM_PAYLOAD_BASE 0x40010000
static alignas(0x1000) u8 g_reboot_payload[IRAM_PAYLOAD_MAX_SIZE];
static alignas(0x1000) u8 g_ff_page[0x1000];
static alignas(0x1000) u8 g_work_page[0x1000];
void do_iram_dram_copy(void *buf, uintptr_t iram_addr, size_t size, int option) {
memcpy(g_work_page, buf, size);
SecmonArgs args = {0};
args.X[0] = 0xF0000201; /* smcAmsIramCopy */
args.X[1] = (uintptr_t)g_work_page; /* DRAM Address */
args.X[2] = iram_addr; /* IRAM Address */
args.X[3] = size; /* Copy size */
args.X[4] = option; /* 0 = Read, 1 = Write */
svcCallSecureMonitor(&args);
memcpy(buf, g_work_page, size);
}
void copy_to_iram(uintptr_t iram_addr, void *buf, size_t size) {
do_iram_dram_copy(buf, iram_addr, size, 1);
}
void copy_from_iram(void *buf, uintptr_t iram_addr, size_t size) {
do_iram_dram_copy(buf, iram_addr, size, 0);
}
static void clear_iram(void) {
memset(g_ff_page, 0xFF, sizeof(g_ff_page));
for (size_t i = 0; i < IRAM_PAYLOAD_MAX_SIZE; i += sizeof(g_ff_page)) {
copy_to_iram(IRAM_PAYLOAD_BASE + i, g_ff_page, sizeof(g_ff_page));
}
}
static void reboot_to_payload(void) {
clear_iram();
for (size_t i = 0; i < IRAM_PAYLOAD_MAX_SIZE; i += 0x1000) {
copy_to_iram(IRAM_PAYLOAD_BASE + i, &g_reboot_payload[i], 0x1000);
}
splSetConfig((SplConfigItem)65001, 2);
}
int main(int argc, char **argv)
{
consoleInit(NULL);
bool can_reboot = true;
Result rc = splInitialize();
Result rc = bpcInitialize();
if (R_FAILED(rc)) {
printf("Failed to initialize spl: 0x%x\n", rc);
printf("Failed to initialize bpc: 0x%x\n", rc);
can_reboot = false;
} else {
FILE *f = fopen("sdmc:/atmosphere/reboot_payload.bin", "rb");
if (f == NULL) {
printf("Failed to open atmosphere/reboot_payload.bin!\n");
can_reboot = false;
} else {
fread(g_reboot_payload, 1, sizeof(g_reboot_payload), f);
fclose(f);
printf("Press [-] to reboot to payload\n");
}
printf("Press [-] to reboot to payload\n");
}
printf("Press [L] to exit\n");
// Main loop
@ -87,7 +30,7 @@ int main(int argc, char **argv)
}
if (can_reboot && kDown & KEY_MINUS) {
reboot_to_payload();
bpcRebootSystem();
}
if (kDown & KEY_L) { break; } // break in order to return to hbmenu
@ -95,10 +38,9 @@ int main(int argc, char **argv)
}
if (can_reboot) {
splExit();
bpcExit();
}
consoleExit(NULL);
return 0;
}