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/*
* linux_console.c - Use stdin/stdout as a console device
*
* Copyright (c) 2007 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
*
* 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 version 2
* as published by the Free Software Foundation.
*
* 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
*/
#include <common.h>
#include <driver.h>
#include <init.h>
#include <mach/linux.h>
#include <malloc.h>
#include <console.h>
#include <xfuncs.h>
static void linux_console_putc(struct console_device *cdev, char c)
{
struct device_d *dev = cdev->dev;
struct linux_console_data *d = dev->platform_data;
linux_write(d->stdoutfd, &c, 1);
}
static int linux_console_tstc(struct console_device *cdev)
{
struct device_d *dev = cdev->dev;
struct linux_console_data *d = dev->platform_data;
return linux_tstc(d->stdinfd);
}
static int linux_console_getc(struct console_device *cdev)
{
struct device_d *dev = cdev->dev;
struct linux_console_data *d = dev->platform_data;
static char old_c;
char c;
linux_read(d->stdinfd, &c, 1);
if (old_c == 0x1c && c == 'q')
panic("^\\q pressed - exiting");
old_c = c;
return c;
}
static int linux_console_probe(struct device_d *dev)
{
struct console_device *cdev;
struct linux_console_data *data = dev->platform_data;
cdev = xzalloc(sizeof(struct console_device));
cdev->dev = dev;
cdev->f_caps = data->flags;
cdev->tstc = linux_console_tstc;
cdev->putc = linux_console_putc;
cdev->getc = linux_console_getc;
console_register(cdev);
return 0;
}
static struct driver_d linux_console_driver = {
.name = "console",
.probe = linux_console_probe,
};
static int console_init(void)
{
return register_driver(&linux_console_driver);
}
console_initcall(console_init);
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