46 lines
869 B
C
46 lines
869 B
C
/* rtt_console.c - Console messages to a RAM buffer that is then read by
|
|
* the Segger J-Link debugger
|
|
*/
|
|
|
|
/*
|
|
* Copyright (c) 2016 Nordic Semiconductor ASA
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
|
|
#include <kernel.h>
|
|
#include <misc/printk.h>
|
|
#include <device.h>
|
|
#include <init.h>
|
|
#include <rtt/SEGGER_RTT.h>
|
|
|
|
extern void __printk_hook_install(int (*fn)(int));
|
|
extern void __stdout_hook_install(int (*fn)(int));
|
|
|
|
static int rtt_console_out(int character)
|
|
{
|
|
unsigned int key;
|
|
char c = (char)character;
|
|
|
|
key = irq_lock();
|
|
SEGGER_RTT_WriteNoLock(0, &c, 1);
|
|
irq_unlock(key);
|
|
|
|
return character;
|
|
}
|
|
|
|
static int rtt_console_init(struct device *d)
|
|
{
|
|
ARG_UNUSED(d);
|
|
|
|
SEGGER_RTT_Init();
|
|
|
|
__printk_hook_install(rtt_console_out);
|
|
__stdout_hook_install(rtt_console_out);
|
|
|
|
return 0;
|
|
}
|
|
|
|
SYS_INIT(rtt_console_init, PRE_KERNEL_1, CONFIG_KERNEL_INIT_PRIORITY_DEFAULT);
|