| /* |
| * 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); |