mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-06-09 23:36:03 +09:00
cef46b7792
Implement support for CONFIG_SERIAL_MULTI into sandbox serial driver. This driver was so far only usable directly, but this patch also adds support for the multi method. This allows using more than one serial driver alongside the sandbox driver. Also, add a weak implementation of default_serial_console() returning this driver. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Marek Vasut <marek.vasut@gmail.com> Cc: Tom Rini <trini@ti.com> Cc: Mike Frysinger <vapier@gentoo.org>
119 lines
2.4 KiB
C
119 lines
2.4 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>
|
|
#include <serial.h>
|
|
#include <linux/compiler.h>
|
|
|
|
static int sandbox_serial_init(void)
|
|
{
|
|
os_tty_raw(0);
|
|
return 0;
|
|
}
|
|
|
|
static void sandbox_serial_setbrg(void)
|
|
{
|
|
}
|
|
|
|
static void sandbox_serial_putc(const char ch)
|
|
{
|
|
os_write(1, &ch, 1);
|
|
}
|
|
|
|
static void sandbox_serial_puts(const char *str)
|
|
{
|
|
os_write(1, str, strlen(str));
|
|
}
|
|
|
|
static int sandbox_serial_getc(void)
|
|
{
|
|
char buf;
|
|
ssize_t count;
|
|
|
|
count = os_read(0, &buf, 1);
|
|
return count == 1 ? buf : 0;
|
|
}
|
|
|
|
static int sandbox_serial_tstc(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_SERIAL_MULTI
|
|
static struct serial_device sandbox_serial_drv = {
|
|
.name = "sandbox_serial",
|
|
.start = sandbox_serial_init,
|
|
.stop = NULL,
|
|
.setbrg = sandbox_serial_setbrg,
|
|
.putc = sandbox_serial_putc,
|
|
.puts = sandbox_serial_puts,
|
|
.getc = sandbox_serial_getc,
|
|
.tstc = sandbox_serial_tstc,
|
|
};
|
|
|
|
void sandbox_serial_initialize(void)
|
|
{
|
|
serial_register(&sandbox_serial_drv);
|
|
}
|
|
|
|
__weak struct serial_device *default_serial_console(void)
|
|
{
|
|
return &sandbox_serial_drv;
|
|
}
|
|
#else
|
|
int serial_init(void)
|
|
{
|
|
return sandbox_serial_init();
|
|
}
|
|
|
|
void serial_setbrg(void)
|
|
{
|
|
sandbox_serial_setbrg();
|
|
}
|
|
|
|
void serial_putc(const char c)
|
|
{
|
|
sandbox_serial_putc(c);
|
|
}
|
|
|
|
void serial_puts(const char *s)
|
|
{
|
|
sandbox_serial_puts(s);
|
|
}
|
|
|
|
int serial_getc(void)
|
|
{
|
|
return sandbox_serial_getc();
|
|
}
|
|
|
|
int serial_tstc(void)
|
|
{
|
|
return sandbox_serial_tstc();
|
|
}
|
|
#endif
|