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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2003 Eric Biederman
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <console/console.h>
#include <uart8250.h>
#include <pc80/mc146818rtc.h>
static u32 uart_bar = 0;
void uartmem_init(void)
{
uart_bar = uart_mem_init();
}
u32 uartmem_getbaseaddr(void)
{
return uart_bar;
}
static void uartmem_tx_byte(unsigned char data)
{
if (!uart_bar)
return;
uart8250_mem_tx_byte(uart_bar, data);
}
static void uartmem_tx_flush(void)
{
uart8250_mem_tx_flush(uart_bar);
}
static unsigned char uartmem_rx_byte(void)
{
if (!uart_bar)
return 0;
return uart8250_mem_rx_byte(uart_bar);
}
static int uartmem_tst_byte(void)
{
if (!uart_bar)
return 0;
return uart8250_mem_can_rx_byte(uart_bar);
}
static const struct console_driver uart8250mem_console __console = {
.init = uartmem_init,
.tx_byte = uartmem_tx_byte,
.tx_flush = uartmem_tx_flush,
.rx_byte = uartmem_rx_byte,
.tst_byte = uartmem_tst_byte,
};
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