blob: 5cadda0a5e985fcb5ada2da87892aa4e73473bec [file] [log] [blame] [edit]
/*
* Copyright (c) 2020 Intel Corporation
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <zephyr/kernel.h>
#include <zephyr/init.h>
#include <zephyr/device.h>
#include <zephyr/version.h>
#if defined(CONFIG_BOOT_DELAY) && (CONFIG_BOOT_DELAY > 0)
#define DELAY_STR STRINGIFY(CONFIG_BOOT_DELAY)
#define BANNER_POSTFIX " (delayed boot " DELAY_STR "ms)"
#else
#define BANNER_POSTFIX ""
#endif /* defined(CONFIG_BOOT_DELAY) && (CONFIG_BOOT_DELAY > 0) */
#ifndef BANNER_VERSION
#if defined(BUILD_VERSION) && !IS_EMPTY(BUILD_VERSION)
#define BANNER_VERSION STRINGIFY(BUILD_VERSION)
#else
#define BANNER_VERSION KERNEL_VERSION_STRING
#endif /* BUILD_VERSION */
#endif /* !BANNER_VERSION */
void boot_banner(void)
{
#if defined(CONFIG_BOOT_DELAY) && (CONFIG_BOOT_DELAY > 0)
#ifdef CONFIG_BOOT_BANNER
printk("***** delaying boot " DELAY_STR "ms (per build configuration) *****\n");
#endif /* CONFIG_BOOT_BANNER */
k_busy_wait(CONFIG_BOOT_DELAY * USEC_PER_MSEC);
#endif /* defined(CONFIG_BOOT_DELAY) && (CONFIG_BOOT_DELAY > 0) */
#if defined(CONFIG_BOOT_CLEAR_SCREEN)
/* \x1b[ = escape sequence
* 3J = erase scrollback
* 2J = erase screen
* H = move cursor to top left
*/
printk("\x1b[3J\x1b[2J\x1b[H");
#endif /* CONFIG_BOOT_CLEAR_SCREEN */
#ifdef CONFIG_BOOT_BANNER
printk("*** " CONFIG_BOOT_BANNER_STRING " " BANNER_VERSION BANNER_POSTFIX " ***\n");
#endif /* CONFIG_BOOT_BANNER */
}