mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
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98 lines
3.3 KiB
C
98 lines
3.3 KiB
C
/*
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* Copyright (c) 2018-2019 Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "panic.h"
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#include "di.h"
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#include "pmc.h"
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#include "fuse.h"
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#include "utils.h"
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static uint32_t g_panic_code = 0;
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void check_and_display_panic(void) {
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/* We also handle our own panics. */
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/* In the case of our own panics, we assume that the display has already been initialized. */
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bool has_panic = APBDEV_PMC_RST_STATUS_0 != 0 || g_panic_code != 0;
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uint32_t code = g_panic_code == 0 ? APBDEV_PMC_SCRATCH200_0 : g_panic_code;
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has_panic = has_panic && !(APBDEV_PMC_RST_STATUS_0 != 1 && code == PANIC_CODE_SAFEMODE);
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if (has_panic) {
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uint32_t color;
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/* Check for predefined codes: */
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switch (code & MASK(20)) {
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case 0x01: /* Package2 signature verification failed. */
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case 0x02: /* Package2 meta verification failed. */
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case 0x03: /* Package2 version check failed. */
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case 0x04: /* Package2 payload verification failed. */
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color = PANIC_COLOR_KERNEL;
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break;
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case 0x05: /* Unknown SMC. */
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case 0x06: /* Unknown Abort. */
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color = PANIC_COLOR_SECMON_GENERIC;
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break;
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case 0x07: /* Invalid CPU context. */
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case 0x08: /* Invalid SE state. */
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case 0x09: /* CPU is already awake (2.0.0+). */
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color = PANIC_COLOR_SECMON_DEEPSLEEP;
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break;
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case 0x10: /* Unknown exception. */
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color = PANIC_COLOR_SECMON_EXCEPTION;
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break;
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case 0x30: /* General bootloader error. */
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case 0x31: /* Invalid DRAM ID. */
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case 0x32: /* Invalid size. */
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case 0x33: /* Invalid arguement. */
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case 0x34: /* Bad GPT. */
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case 0x35: /* Failed to boot SafeMode. */
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case 0x36: /* Activity monitor fired (4.0.0+). */
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color = PANIC_COLOR_BOOTLOADER_GENERIC;
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break;
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case 0x40: /* Kernel panic. */
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color = PANIC_COLOR_KERNEL;
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break;
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default:
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color = code >> 20;
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color |= color << 4;
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break;
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}
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if (g_panic_code == 0) {
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display_init();
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}
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display_color_screen(color);
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wait_for_button_and_reboot();
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} else {
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g_panic_code = 0;
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APBDEV_PMC_SCRATCH200_0 = 0;
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}
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}
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__attribute__ ((noreturn)) void panic(uint32_t code) {
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/* Set panic code. */
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if (g_panic_code == 0) {
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g_panic_code = code;
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APBDEV_PMC_SCRATCH200_0 = code;
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}
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fuse_disable_programming();
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APBDEV_PMC_CRYPTO_OP_0 = 1; /* Disable all SE operations. */
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check_and_display_panic();
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while(true);
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}
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