1. 根目录:
2. arch
3. mips
4. include
5. asm
6. vr41xx
7. giu.h

/*
 *  Include file for NEC VR4100 series General-purpose I/O Unit.
 *
 *  Copyright (C) 2005-2009  Yoichi Yuasa <yuasa@linux-mips.org>
 *
 *  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
 */
#ifndef __NEC_VR41XX_GIU_H
#define __NEC_VR41XX_GIU_H

/*
 * NEC VR4100 series GIU platform device IDs.
 */
enum {
	GPIO_50PINS_PULLUPDOWN,
	GPIO_36PINS,
	GPIO_48PINS_EDGE_SELECT,
};

typedef enum {
	IRQ_TRIGGER_LEVEL,
	IRQ_TRIGGER_EDGE,
	IRQ_TRIGGER_EDGE_FALLING,
	IRQ_TRIGGER_EDGE_RISING,
} irq_trigger_t;

typedef enum {
	IRQ_SIGNAL_THROUGH,
	IRQ_SIGNAL_HOLD,
} irq_signal_t;

extern void vr41xx_set_irq_trigger(unsigned int pin, irq_trigger_t trigger,
				   irq_signal_t signal);

typedef enum {
	IRQ_LEVEL_LOW,
	IRQ_LEVEL_HIGH,
} irq_level_t;

extern void vr41xx_set_irq_level(unsigned int pin, irq_level_t level);

typedef enum {
	GPIO_PULL_DOWN,
	GPIO_PULL_UP,
	GPIO_PULL_DISABLE,
} gpio_pull_t;

extern int vr41xx_gpio_pullupdown(unsigned int pin, gpio_pull_t pull);

#endif /* __NEC_VR41XX_GIU_H */