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/* gpio.h -- Definition of types and structures for the GPIO code

   Copyright (C) 2001 Erez Volk, erez@mailandnews.comopencores.org

   This file is part of OpenRISC 1000 Architectural Simulator.

   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., 675 Mass Ave, Cambridge, MA 02139, USA.

*/

#ifndef __OR1KSIM_PERIPHERAL_GPIO_H

#define __OR1KSIM_PERIPHERAL_GPIO_H

/* Exported function prototypes */

void gpio_reset( void );

void gpio_clock( void );

void gpio_status( void );

/* Address space required by one Ethernet MAC */

#define GPIO_ADDR_SPACE 0x20

/* Relative Register Addresses */

#define RGPIO_IN        0x00

#define RGPIO_OUT       0x04

#define RGPIO_OE        0x08

#define RGPIO_INTE      0x0C

#define RGPIO_PTRIG     0x10

#define RGPIO_AUX       0x14

#define RGPIO_CTRL      0x18

#define RGPIO_INTS      0x1C

/* Fields inside RGPIO_CTRL */

#define RGPIO_CTRL_ECLK      0x00000001

#define RGPIO_CTRL_NEC       0x00000002

#define RGPIO_CTRL_INTE      0x00000004

#define RGPIO_CTRL_INTS      0x00000008

#endif /* __OR1KSIM_PERIPHERAL_GPIO_H */