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