ab06a758b9
This allows us to act like a serial device: we get tab chars and CTRL+C and respond appropriately. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Tested-by: Simon Glass <sjg@chromium.org>
64 lines
1.4 KiB
C
64 lines
1.4 KiB
C
/*
|
|
* Copyright (c) 2011 The Chromium OS Authors.
|
|
* See file CREDITS for list of people who contributed to this
|
|
* project.
|
|
*
|
|
* 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; either version 2 of
|
|
* the License, or (at your option) any later version.
|
|
*
|
|
* 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., 59 Temple Place, Suite 330, Boston,
|
|
* MA 02111-1307 USA
|
|
*/
|
|
|
|
/*
|
|
* This provide a test serial port. It provides an emulated serial port where
|
|
* a test program and read out the serial output and inject serial input for
|
|
* U-Boot.
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <os.h>
|
|
|
|
int serial_init(void)
|
|
{
|
|
os_tty_raw(0);
|
|
return 0;
|
|
}
|
|
|
|
void serial_setbrg(void)
|
|
{
|
|
}
|
|
|
|
void serial_putc(const char ch)
|
|
{
|
|
os_write(1, &ch, 1);
|
|
}
|
|
|
|
void serial_puts(const char *str)
|
|
{
|
|
os_write(1, str, strlen(str));
|
|
}
|
|
|
|
int serial_getc(void)
|
|
{
|
|
char buf;
|
|
ssize_t count;
|
|
|
|
count = os_read(0, &buf, 1);
|
|
return count == 1 ? buf : 0;
|
|
}
|
|
|
|
int serial_tstc(void)
|
|
{
|
|
return 0;
|
|
}
|