blob: 75c2f57dde9e494a7bcec4db72e614232d9d2058 [file] [log] [blame] [edit]
/*
* Copyright (c) 2018 Oticon A/S
* Copyright (c) 2023 Nordic Semiconductor ASA
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <zephyr/init.h>
#include <zephyr/arch/posix/posix_trace.h>
#define _STDOUT_BUF_SIZE 256
static char stdout_buff[_STDOUT_BUF_SIZE];
static int n_pend; /* Number of pending characters in buffer */
static int print_char(int c)
{
int printnow = 0;
if ((c != '\n') && (c != '\r')) {
stdout_buff[n_pend++] = c;
stdout_buff[n_pend] = 0;
} else {
printnow = 1;
}
if (n_pend >= _STDOUT_BUF_SIZE - 1) {
printnow = 1;
}
if (printnow) {
posix_print_trace("%s\n", stdout_buff);
n_pend = 0;
stdout_buff[0] = 0;
}
return c;
}
/**
* Ensure that whatever was written thru printk is displayed now
*/
void posix_flush_stdout(void)
{
if (n_pend) {
stdout_buff[n_pend] = 0;
posix_print_trace("%s", stdout_buff);
n_pend = 0;
stdout_buff[0] = 0;
}
}
static int posix_arch_console_init(void)
{
#ifdef CONFIG_PRINTK
extern void __printk_hook_install(int (*fn)(int));
__printk_hook_install(print_char);
#endif
#ifdef CONFIG_STDOUT_CONSOLE
extern void __stdout_hook_install(int (*fn)(int));
__stdout_hook_install(print_char);
#endif
return 0;
}
SYS_INIT(posix_arch_console_init, PRE_KERNEL_1,
CONFIG_POSIX_ARCH_CONSOLE_INIT_PRIORITY);