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Fusee Stage2: skeleton more of the nxboot process

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This commit is contained in:
Michael Scire 2018-04-10 16:37:58 -06:00
parent 9fadec60c5
commit 3c24bfdb79
5 changed files with 103 additions and 4 deletions
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70
fusee/fusee-secondary/src/nxboot.c
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@ -1,14 +1,82 @@
#include "utils.h"
#include "nxboot.h"
#include "key_derivation.h"
#include "loader.h"
#include "splash_screen.h"
#include "exocfg.h"
#include "lib/printk.h"
#include "display/video_fb.h"
#include "lib/ini.h"
#include "hwinit/cluster.h"
static int exosphere_ini_handler(void *user, const char *section, const char *name, const char *value) {
exosphere_config_t *exo_cfg = (exosphere_config_t *)user;
if (strcmp(section, "exosphere") == 0) {
if (strcmp(name, EXOSPHERE_TARGETFW_KEY) == 0) {
sscanf(value, "%d", &exo_cfg->target_firmware);
} else {
return 0;
}
} else {
return 0;
}
return 1;
}
void nxboot_configure_exosphere(void) {
exosphere_config_t exo_cfg = {0};
exo_cfg.magic = MAGIC_EXOSPHERE_BOOTCONFIG;
exo_cfg.target_firmware = EXOSPHERE_TARGET_FIRMWARE_MAX;
if (ini_parse_string(get_loader_ctx()->bct0, exosphere_ini_handler, &exo_cfg) < 0) {
printk("Error: Failed to parse BCT.ini!\n");
generic_panic();
}
if (exo_cfg.target_firmware < EXOSPHERE_TARGET_FIRMWARE_MIN || exo_cfg.target_firmware > EXOSPHERE_TARGET_FIRMWARE_MAX) {
printk("Error: Invalid Exosphere target firmware!\n");
generic_panic();
}
*(MAILBOX_EXOSPHERE_CONFIGURATION) = exo_cfg;
}
/* This is the main function responsible for booting Horizon. */
void nxboot_main(void) {
loader_ctx_t *loader_ctx = get_loader_ctx();
/* TODO: Implement this function. */
/* TODO: Validate that we're capable of booting. */
/* TODO: Initialize Boot Reason. */
/* TODO: How should we deal with bootconfig? */
/* Setup boot configuration for Exosphere. */
nxboot_configure_exosphere();
/* Derive keydata. */
derive_nx_keydata(MAILBOX_EXOSPHERE_CONFIGURATION->target_firmware);
/* Boot up Exosphere. */
MAILBOX_NX_BOOTLOADER_IS_SECMON_AWAKE = 0;
if (MAILBOX_EXOSPHERE_CONFIGURATION->target_firmware <= EXOSPHERE_TARGET_FIRMWARE_400) {
MAILBOX_NX_BOOTLOADER_SETUP_STATE = NX_BOOTLOADER_STATE_LOADED_PACKAGE2;
} else {
MAILBOX_NX_BOOTLOADER_SETUP_STATE = NX_BOOTLOADER_STATE_LOADED_PACKAGE2_4X;
}
cluster_boot_cpu0(loader_ctx->exosphere_loadfile.load_address, 1);
while (MAILBOX_NX_BOOTLOADER_IS_SECMON_AWAKE == 0) {
/* Wait for Exosphere to wake up. */
}
if (MAILBOX_EXOSPHERE_CONFIGURATION->target_firmware <= EXOSPHERE_TARGET_FIRMWARE_400) {
MAILBOX_NX_BOOTLOADER_SETUP_STATE = NX_BOOTLOADER_STATE_FINISHED;
} else {
MAILBOX_NX_BOOTLOADER_SETUP_STATE = NX_BOOTLOADER_STATE_FINISHED_4X;
}
/* Display splash screen. */
display_splash_screen_bmp(loader_ctx->custom_splash_path);
/* TODO: Halt ourselves. */
}