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/* SPDX-License-Identifier: GPL-2.0-only */
/* This file is part of the coreboot project. */
#include <console/console.h>
#include <console/qemu_debugcon.h>
#include <arch/io.h>
static int qemu_debugcon_detected;
void qemu_debugcon_init(void)
{
int detected = (inb(CONFIG_CONSOLE_QEMU_DEBUGCON_PORT) == 0xe9);
qemu_debugcon_detected = detected;
printk(BIOS_INFO, "QEMU debugcon %s [port 0x%x]\n",
detected ? "detected" : "not found",
CONFIG_CONSOLE_QEMU_DEBUGCON_PORT);
}
void qemu_debugcon_tx_byte(unsigned char data)
{
if (qemu_debugcon_detected != 0)
outb(data, CONFIG_CONSOLE_QEMU_DEBUGCON_PORT);
}
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