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Atmosphere/fusee/common/log.c

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4.2 KiB
C

/*
* Copyright (c) 2018-2020 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 "log.h"
#ifdef FUSEE_STAGE2_SRC
#include "../../../fusee/fusee-secondary/src/console.h"
#include <stdio.h>
#else
#include "display/video_fb.h"
#include "vsprintf.h"
#endif
/* Default log level for screen output. */
ScreenLogLevel g_screen_log_level = SCREEN_LOG_LEVEL_NONE;
void log_set_log_level(ScreenLogLevel log_level) {
g_screen_log_level = log_level;
}
ScreenLogLevel log_get_log_level() {
return g_screen_log_level;
}
void log_to_uart(const char *message) {
/* TODO: Add UART logging. */
}
static void print_to_screen(ScreenLogLevel screen_log_level, char *message) {
/* Don't print to screen if below log level */
if(screen_log_level > g_screen_log_level) return;
#ifdef FUSEE_STAGE2_SRC
printf(message);
#else
video_puts(message);
#endif
}
/**
* vprintk - logs a message and prints it to screen based on its screen_log_level
*
* If the level is below g_screen_log_level it will not be shown but logged to UART
* This text will not be colored or prefixed
* UART is TODO
*/
void vprint(ScreenLogLevel screen_log_level, const char *fmt, va_list args)
{
char buf[PRINT_MESSAGE_MAX_LENGTH];
vsnprintf(buf, PRINT_MESSAGE_MAX_LENGTH, fmt, args);
/* We don't need that flag here, but if it gets used, strip it so we print correctly. */
screen_log_level &= ~SCREEN_LOG_LEVEL_NO_PREFIX;
/* Log to UART. */
log_to_uart(buf);
print_to_screen(screen_log_level, buf);
}
static void add_prefix(ScreenLogLevel screen_log_level, const char *fmt, char *buf) {
char typebuf[] = "[%s] %s";
/* Apply prefix and append message format. */
/* TODO: Add coloring to the output. */
switch(screen_log_level)
{
case SCREEN_LOG_LEVEL_ERROR:
snprintf(buf, PRINT_MESSAGE_MAX_LENGTH, typebuf, "ERROR", fmt);
break;
case SCREEN_LOG_LEVEL_WARNING:
snprintf(buf, PRINT_MESSAGE_MAX_LENGTH, typebuf, "WARNING", fmt);
break;
case SCREEN_LOG_LEVEL_MANDATORY:
snprintf(buf, PRINT_MESSAGE_MAX_LENGTH, "%s", fmt);
break;
case SCREEN_LOG_LEVEL_INFO:
snprintf(buf, PRINT_MESSAGE_MAX_LENGTH, typebuf, "INFO", fmt);
break;
case SCREEN_LOG_LEVEL_DEBUG:
snprintf(buf, PRINT_MESSAGE_MAX_LENGTH, typebuf, "DEBUG", fmt);
break;
default:
break;
}
}
/**
* print - logs a message and prints it to screen based on its screen_log_level
*
* If the level is below g_screen_log_level it will not be shown but logged to UART
* Use SCREEN_LOG_LEVEL_NO_PREFIX if you don't want a prefix to be added
* UART is TODO
*/
void print(ScreenLogLevel screen_log_level, const char * fmt, ...)
{
char buf[PRINT_MESSAGE_MAX_LENGTH] = {};
char message[PRINT_MESSAGE_MAX_LENGTH] = {};
/* Make splash disappear if level is ERROR or WARNING. */
#ifdef FUSEE_STAGE2_SRC
if (screen_log_level < SCREEN_LOG_LEVEL_MANDATORY) {
console_resume();
}
#endif
/* Make prefix free messages with log_level possible. */
if(screen_log_level & SCREEN_LOG_LEVEL_NO_PREFIX) {
/* Remove the NO_PREFIX flag so the enum can be recognized later on. */
screen_log_level &= ~SCREEN_LOG_LEVEL_NO_PREFIX;
snprintf(buf, PRINT_MESSAGE_MAX_LENGTH, "%s", fmt);
}
else {
add_prefix(screen_log_level, fmt, buf);
}
/* Input arguments. */
va_list args;
va_start(args, fmt);
vsnprintf(message, PRINT_MESSAGE_MAX_LENGTH, buf, args);
va_end(args);
/* Log to UART. */
log_to_uart(message);
print_to_screen(screen_log_level, message);
}