mirror of https://github.com/hak5/openwrt.git
106 lines
2.7 KiB
C
106 lines
2.7 KiB
C
/*
|
|
* include/asm-mips/mach-ifxmips/gpio.h
|
|
*
|
|
* 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.
|
|
*
|
|
* Copyright (C) 2007 John Crispin <blogic@openwrt.org>
|
|
*
|
|
*/
|
|
|
|
#ifndef _IFXMIPS_GPIO_H_
|
|
#define _IFXMIPS_GPIO_H_
|
|
|
|
#include <asm/ifxmips/ifxmips.h>
|
|
#include <asm/ifxmips/ifxmips_gpio.h>
|
|
|
|
#define GPIO_TO_PORT(x) ((x > 15) ? (1) : (0))
|
|
#define GPIO_TO_GPIO(x) ((x > 15) ? (x-16) : (x))
|
|
|
|
static inline int gpio_direction_input(unsigned gpio)
|
|
{
|
|
ifxmips_port_set_open_drain(GPIO_TO_PORT(gpio), GPIO_TO_GPIO(gpio));
|
|
ifxmips_port_clear_altsel0(GPIO_TO_PORT(gpio), GPIO_TO_GPIO(gpio));
|
|
ifxmips_port_clear_altsel1(GPIO_TO_PORT(gpio), GPIO_TO_GPIO(gpio));
|
|
ifxmips_port_set_dir_in(GPIO_TO_PORT(gpio), GPIO_TO_GPIO(gpio));
|
|
return 0;
|
|
}
|
|
|
|
static inline int gpio_direction_output(unsigned gpio, int value)
|
|
{
|
|
ifxmips_port_clear_open_drain(GPIO_TO_PORT(gpio), GPIO_TO_GPIO(gpio));
|
|
ifxmips_port_clear_altsel0(GPIO_TO_PORT(gpio), GPIO_TO_GPIO(gpio));
|
|
ifxmips_port_clear_altsel1(GPIO_TO_PORT(gpio), GPIO_TO_GPIO(gpio));
|
|
ifxmips_port_set_dir_out(GPIO_TO_PORT(gpio), GPIO_TO_GPIO(gpio));
|
|
return 0;
|
|
}
|
|
|
|
static inline int gpio_get_value(unsigned gpio)
|
|
{
|
|
ifxmips_port_get_input(GPIO_TO_PORT(gpio), GPIO_TO_GPIO(gpio));
|
|
return 0;
|
|
}
|
|
|
|
static inline void gpio_set_value(unsigned gpio, int value)
|
|
{
|
|
if (value)
|
|
ifxmips_port_set_output(GPIO_TO_PORT(gpio), GPIO_TO_GPIO(gpio));
|
|
else
|
|
ifxmips_port_clear_output(GPIO_TO_PORT(gpio),
|
|
GPIO_TO_GPIO(gpio));
|
|
}
|
|
|
|
static inline int gpio_request(unsigned gpio, const char *label)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline void gpio_free(unsigned gpio)
|
|
{
|
|
}
|
|
|
|
static inline int gpio_to_irq(unsigned gpio)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int irq_to_gpio(unsigned irq)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int gpio_cansleep(unsigned gpio)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int gpio_get_value_cansleep(unsigned gpio)
|
|
{
|
|
might_sleep();
|
|
return gpio_get_value(gpio);
|
|
}
|
|
|
|
static inline void gpio_set_value_cansleep(unsigned gpio, int value)
|
|
{
|
|
might_sleep();
|
|
gpio_set_value(gpio, value);
|
|
}
|
|
|
|
static inline int gpio_is_valid(int number)
|
|
{
|
|
return ((unsigned)number) < 8;
|
|
}
|
|
|
|
#endif
|