Atmosphere/fusee/fusee-primary/src/utils.c

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/*
* 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 <stdbool.h>
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#include <stdarg.h>
#include "utils.h"
#include "se.h"
#include "fuse.h"
#include "pmc.h"
#include "timers.h"
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#include "panic.h"
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#include "car.h"
#include "btn.h"
#include "lib/log.h"
#include <inttypes.h>
void wait(uint32_t microseconds) {
uint32_t old_time = TIMERUS_CNTR_1US_0;
while (TIMERUS_CNTR_1US_0 - old_time <= microseconds) {
/* Spin-lock. */
}
}
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__attribute__((noreturn)) void watchdog_reboot(void) {
volatile watchdog_timers_t *wdt = GET_WDT(4);
wdt->PATTERN = WDT_REBOOT_PATTERN;
wdt->COMMAND = 2; /* Disable Counter. */
GET_WDT_REBOOT_CFG_REG(4) = 0xC0000000;
wdt->CONFIG = 0x8019; /* Full System Reset after Fourth Counter expires, using TIMER(9). */
wdt->COMMAND = 1; /* Enable Counter. */
while (true) {
/* Wait for reboot. */
}
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}
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__attribute__((noreturn)) void pmc_reboot(uint32_t scratch0) {
APBDEV_PMC_SCRATCH0_0 = scratch0;
/* Reset the processor. */
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APBDEV_PMC_CONTROL = BIT(4);
while (true) {
/* Wait for reboot. */
}
}
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__attribute__((noreturn)) void wait_for_button_and_reboot(void) {
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uint32_t button;
while (true) {
button = btn_read();
if (button & BTN_POWER) {
pmc_reboot(1 << 1);
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}
}
}
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__attribute__ ((noreturn)) void generic_panic(void) {
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panic(0xFF000006);
}
__attribute__((noreturn)) void fatal_error(const char *fmt, ...) {
va_list args;
print(SCREEN_LOG_LEVEL_ERROR, "Fatal error: ");
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va_start(args, fmt);
vprint(SCREEN_LOG_LEVEL_ERROR, fmt, args);
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va_end(args);
print(SCREEN_LOG_LEVEL_ERROR | SCREEN_LOG_LEVEL_NO_PREFIX,"\nPress POWER to reboot\n");
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wait_for_button_and_reboot();
}
__attribute__((noinline)) bool overlaps(uint64_t as, uint64_t ae, uint64_t bs, uint64_t be)
{
if(as <= bs && bs <= ae)
return true;
if(bs <= as && as <= be)
return true;
return false;
}
/* Adapted from https://gist.github.com/ccbrown/9722406 */
void hexdump(const void* data, size_t size, uintptr_t addrbase) {
const uint8_t *d = (const uint8_t *)data;
char ascii[17];
ascii[16] = '\0';
for (size_t i = 0; i < size; i++) {
if (i % 16 == 0) {
print(SCREEN_LOG_LEVEL_ERROR | SCREEN_LOG_LEVEL_NO_PREFIX, "%0*" PRIXPTR ": | ", 2 * sizeof(addrbase), addrbase + i);
}
print(SCREEN_LOG_LEVEL_ERROR | SCREEN_LOG_LEVEL_NO_PREFIX, "%02X ", d[i]);
if (d[i] >= ' ' && d[i] <= '~') {
ascii[i % 16] = d[i];
} else {
ascii[i % 16] = '.';
}
if ((i+1) % 8 == 0 || i+1 == size) {
print(SCREEN_LOG_LEVEL_ERROR | SCREEN_LOG_LEVEL_NO_PREFIX, " ");
if ((i+1) % 16 == 0) {
print(SCREEN_LOG_LEVEL_ERROR | SCREEN_LOG_LEVEL_NO_PREFIX, "| %s \n", ascii);
} else if (i+1 == size) {
ascii[(i+1) % 16] = '\0';
if ((i+1) % 16 <= 8) {
print(SCREEN_LOG_LEVEL_ERROR | SCREEN_LOG_LEVEL_NO_PREFIX, " ");
}
for (size_t j = (i+1) % 16; j < 16; j++) {
print(SCREEN_LOG_LEVEL_ERROR | SCREEN_LOG_LEVEL_NO_PREFIX, " ");
}
print(SCREEN_LOG_LEVEL_ERROR | SCREEN_LOG_LEVEL_NO_PREFIX, "| %s \n", ascii);
}
}
}
}