43fa7ce53f
Refactors all of the console drivers to use a shared driver class initialization priority configuration, CONFIG_CONSOLE_INIT_PRIORITY, to allow configuring console drivers separately from other devices. This is similar to other driver classes like I2C and SPI. The default is set to CONFIG_KERNEL_INIT_PRIORITY_DEFAULT to preserve the existing default initialization priority for most drivers. The driver-specific option, CONFIG_NATIVE_POSIX_CONSOLE_INIT_PRIORITY, is left intact because the native posix console driver needs to initialize after the UART console driver when both drivers are enabled. Signed-off-by: Maureen Helm <maureen.helm@intel.com>
39 lines
853 B
C
39 lines
853 B
C
/* ram_console.c - Console messages to a RAM buffer */
|
|
|
|
/*
|
|
* Copyright (c) 2015 Intel Corporation
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
|
|
#include <kernel.h>
|
|
#include <sys/printk.h>
|
|
#include <device.h>
|
|
#include <init.h>
|
|
|
|
extern void __printk_hook_install(int (*fn)(int));
|
|
extern void __stdout_hook_install(int (*fn)(int));
|
|
|
|
/* Extra byte to ensure we're always NULL-terminated */
|
|
char ram_console[CONFIG_RAM_CONSOLE_BUFFER_SIZE + 1];
|
|
static int pos;
|
|
|
|
static int ram_console_out(int character)
|
|
{
|
|
ram_console[pos] = (char)character;
|
|
pos = (pos + 1) % CONFIG_RAM_CONSOLE_BUFFER_SIZE;
|
|
return character;
|
|
}
|
|
|
|
static int ram_console_init(const struct device *d)
|
|
{
|
|
ARG_UNUSED(d);
|
|
__printk_hook_install(ram_console_out);
|
|
__stdout_hook_install(ram_console_out);
|
|
|
|
return 0;
|
|
}
|
|
|
|
SYS_INIT(ram_console_init, PRE_KERNEL_1, CONFIG_CONSOLE_INIT_PRIORITY);
|