mirror of
https://github.com/Atmosphere-NX/Atmosphere
synced 2024-11-14 17:16:36 +00:00
118 lines
3.4 KiB
C
118 lines
3.4 KiB
C
#include "utils.h"
|
|
#include "hwinit.h"
|
|
#include "fuse.h"
|
|
#include "se.h"
|
|
#include "sd_utils.h"
|
|
#include "stage2.h"
|
|
#include "chainloader.h"
|
|
#include "sdmmc.h"
|
|
#include "lib/fatfs/ff.h"
|
|
#include "lib/printk.h"
|
|
#include "display/video_fb.h"
|
|
|
|
static char g_bct0_buffer[BCTO_MAX_SIZE];
|
|
|
|
#define DEFAULT_BCT0_FOR_DEBUG \
|
|
"BCT0\n"\
|
|
"[stage1]\n"\
|
|
"stage2_path = fusee-secondary.bin\n"\
|
|
"stage2_addr = 0xF0000000\n"\
|
|
"stage2_entrypoint = 0xF0000000\n"
|
|
|
|
const char *load_config(void) {
|
|
if (!read_sd_file(g_bct0_buffer, BCTO_MAX_SIZE, "BCT.ini")) {
|
|
printk("Failed to read BCT0 from SD!\n");
|
|
printk("[DEBUG] Using default BCT0!\n");
|
|
memcpy(g_bct0_buffer, DEFAULT_BCT0_FOR_DEBUG, sizeof(DEFAULT_BCT0_FOR_DEBUG));
|
|
/* TODO: Stop using default. */
|
|
/* printk("Error: Failed to load BCT.ini!\n");
|
|
* generic_panic(); */
|
|
}
|
|
|
|
if (memcmp(g_bct0_buffer, "BCT0", 4) != 0) {
|
|
printk("Error: Unexpected magic in BCT.ini!\n");
|
|
generic_panic();
|
|
}
|
|
/* Return pointer to first line of the ini. */
|
|
const char *bct0 = g_bct0_buffer;
|
|
while (*bct0 && *bct0 != '\n') {
|
|
bct0++;
|
|
}
|
|
if (!bct0) {
|
|
printk("Error: BCT.ini has no newline!\n");
|
|
generic_panic();
|
|
}
|
|
return bct0;
|
|
}
|
|
|
|
void load_sbk(void) {
|
|
uint32_t sbk[0x4];
|
|
/* Load the SBK into the security engine, if relevant. */
|
|
memcpy(sbk, (void *)get_fuse_chip_regs()->FUSE_PRIVATE_KEY, 0x10);
|
|
for (unsigned int i = 0; i < 4; i++) {
|
|
if (sbk[i] != 0xFFFFFFFF) {
|
|
set_aes_keyslot(0xE, sbk, 0x10);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
int main(void) {
|
|
const char *bct0;
|
|
u32 *lfb_base;
|
|
const char *stage2_path;
|
|
stage2_args_t stage2_args = {0};
|
|
|
|
/* Initialize DRAM. */
|
|
/* TODO: What can be stripped out to make this minimal? */
|
|
nx_hwinit();
|
|
|
|
/* Initialize the display. */
|
|
display_init();
|
|
|
|
/* Register the display as a printk provider. */
|
|
lfb_base = display_init_framebuffer((void *)0xC0000000);
|
|
video_init(lfb_base);
|
|
|
|
/* Turn on the backlight after initializing the lfb */
|
|
/* to avoid flickering. */
|
|
display_enable_backlight(true);
|
|
|
|
/* Say hello. */
|
|
printk("Welcome to Atmosph\xe8re Fus\xe9" "e!\n");
|
|
printk("Using color linear framebuffer at 0x%p!\n", lfb_base);
|
|
|
|
#ifndef I_KNOW_WHAT_I_AM_DOING
|
|
#error "Fusee is a work-in-progress bootloader, and is not ready for usage yet. If you want to play with it anyway, please #define I_KNOW_WHAT_I_AM_DOING -- and recognize that we will be unable to provide support until it is ready for general usage :)"
|
|
|
|
printk("Warning: Fus\e9e is not yet completed, and not ready for general testing!\n");
|
|
printk("Please do not seek support for it until it is done.\n");
|
|
generic_panic();
|
|
#endif
|
|
|
|
/* Try to load the SBK into the security engine, if possible. */
|
|
/* TODO: Should this be done later? */
|
|
load_sbk();
|
|
|
|
/* Load the BCT0 configuration ini off of the SD. */
|
|
bct0 = load_config();
|
|
|
|
/* Load the loader payload into DRAM. */
|
|
load_stage2(bct0);
|
|
|
|
f_unmount("");
|
|
|
|
display_enable_backlight(false);
|
|
display_end();
|
|
|
|
/* Setup argument data. */
|
|
stage2_path = stage2_get_program_path();
|
|
stage2_args.version = 0;
|
|
strcpy(stage2_args.bct0, bct0);
|
|
strcpy(g_chainloader_arg_data, stage2_path);
|
|
memcpy(g_chainloader_arg_data + strlen(stage2_path) + 1, &stage2_args, sizeof(stage2_args_t));
|
|
|
|
/* Jump to Stage 2. */
|
|
relocate_and_chainload(STAGE2_ARGC);
|
|
return 0;
|
|
}
|