From 509f77277cfccdae897f0d369672ce0818ecdf88 Mon Sep 17 00:00:00 2001 From: Stefan Reinauer Date: Fri, 7 Dec 2012 17:31:37 -0800 Subject: WIP: Add support for non-8250 built-in UARTs Change-Id: I5b412678bb8993633b3a610315d298cb20c705f3 Signed-off-by: David Hendricks Signed-off-by: Stefan Reinauer Reviewed-on: http://review.coreboot.org/2011 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich --- src/include/uart.h | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 src/include/uart.h (limited to 'src/include') diff --git a/src/include/uart.h b/src/include/uart.h new file mode 100644 index 000000000000..931d6dce82fa --- /dev/null +++ b/src/include/uart.h @@ -0,0 +1,33 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2012 The ChromiumOS Authors. All rights reserved. + * + * 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 + * + * FIXME(dhendrix): This file contains generic prototypes for UART functions. + * The existing headers are too specific to the 8250, so we need a better + * abstraction for use with non-8250 UARTs. + */ + +#ifndef UART_H +#define UART_H + +unsigned char uart_rx_byte(void); +void uart_tx_byte(unsigned char data); +void uart_tx_flush(void); + +void uart_init(void); + +#endif /* UART_H */ -- cgit v1.2.3