/*
 * Copyright (C) 2010  Proformatique
 * Copyright (C) 2007,2008,2009 Intel Corporation. All rights reserved.
 *
 * 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, 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, see <http://www.gnu.org/licenses/>.
 */

/*****************************************************************************
 * Module name:
 *    gpio
 *
 * Abstract:
 *    This header file is to be included by the gpio.c file only.
 *
 * Revision:
 *    TBD
 *
 *****************************************************************************/

#ifndef GPIO_H
#define GPIO_H

#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/socket.h>
#include <linux/poll.h>
#include <linux/init.h>
#include <linux/fs.h>
#include <linux/errno.h>
#include <linux/types.h>
#include <linux/proc_fs.h>
#include <linux/fcntl.h>
#include <linux/interrupt.h>
#include <asm/system.h>
#include <asm/uaccess.h>
#include <linux/pci.h>

#include "common.h"

#define DRIVERNAME "gpio_ref"


/******************************************************************************

  Description:
     This structure contains data that is used for most driver operations.

 *****************************************************************************/
struct drvr_data
{
	struct gpio_regs regs;
	void *mem_virt;
	unsigned int mem_base;
	unsigned int mem_resrvd;
};

enum gpio_direction { GPIO_INPUT, GPIO_OUTPUT };
enum gpio_level { GPIO_LOW, GPIO_HIGH };

int gpio_set_to_gpio(int signal);
int gpio_set_to_alternative(int signal);
int gpio_set_direction(int signal, int direction);
int gpio_set_level(int signal, int level);
int gpio_get_level(int signal);
int gpio_set_blink(int signal, int blink);
int gpio_inverted_input(int signal, int inverted);
const struct gpio_regs* gpio_regs(void);

int gpio_init(void);
void gpio_close(void);
int gpio_getpininfo(int Signal, char *pBuff);
void set_reg_addrs(unsigned int addr);

#endif