/**

 * $Id: controller.c,v 1.6 2007-10-08 11:49:35 nkeynes Exp $

 *

 * Implements the standard dreamcast controller

 *

 * Copyright (c) 2005 Nathan Keynes.

 *

 * 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.

 */

#include <stdlib.h>

#include "dream.h"

#include "dreamcast.h"

#include "display.h"

#include "maple.h"

#include "maple/controller.h"

#define CONTROLLER_CONFIG_ENTRIES 16

void controller_attach( maple_device_t dev );

void controller_detach( maple_device_t dev );

void controller_destroy( maple_device_t dev );

maple_device_t controller_new();

dreamcast_config_entry_t controller_get_config( maple_device_t dev );

int controller_get_cond( maple_device_t dev, int function, unsigned char *outbuf,

                         int *outlen );

typedef struct controller_device {

    struct maple_device dev;

    uint32_t condition[2];

    struct dreamcast_config_entry config[CONTROLLER_CONFIG_ENTRIES];

} *controller_device_t;

struct maple_device_class controller_class = { "Sega Controller", controller_new };

static struct controller_device base_controller = {

    { MAPLE_DEVICE_TAG, &controller_class, CONTROLLER_IDENT, CONTROLLER_VERSION, 

      controller_get_config, controller_attach, controller_detach, controller_destroy,

      NULL, NULL, controller_get_cond, NULL, NULL, NULL },

    {0x0000FFFF, 0x80808080}, 

    {{ "dpad left", CONFIG_TYPE_KEY },

     { "dpad right", CONFIG_TYPE_KEY },

     { "dpad up", CONFIG_TYPE_KEY },

     { "dpad down", CONFIG_TYPE_KEY },

     { "analog left", CONFIG_TYPE_KEY },

     { "analog right", CONFIG_TYPE_KEY },

     { "analog up", CONFIG_TYPE_KEY },

     { "analog down", CONFIG_TYPE_KEY },

     { "button X", CONFIG_TYPE_KEY },

     { "button Y", CONFIG_TYPE_KEY },

     { "button A", CONFIG_TYPE_KEY },

     { "button B", CONFIG_TYPE_KEY },

     { "trigger left", CONFIG_TYPE_KEY },

     { "trigger right", CONFIG_TYPE_KEY },

     { "start", CONFIG_TYPE_KEY },

     { NULL, CONFIG_TYPE_NONE }} };

#define CONTROLLER(x) ((controller_device_t)(x))

maple_device_t controller_new( )

{

    controller_device_t dev = malloc( sizeof(struct controller_device) );

    memcpy( dev, &base_controller, sizeof(base_controller) );

    return MAPLE_DEVICE(dev);

}

/**

 * Input callback 

 */

void controller_key_callback( void *mdev, uint32_t value, gboolean isKeyDown )

{

    controller_device_t dev = (controller_device_t)mdev;

    if( isKeyDown ) {

	switch( value ) {

	case JOY_LEFT:

	    dev->condition[1] &= ~JOY_X_AXIS;

	    break;

	case JOY_RIGHT:

	    dev->condition[1] |= JOY_X_AXIS;

	    break;

	case JOY_UP:

	    dev->condition[1] &= ~JOY_Y_AXIS;

	    break;

	case JOY_DOWN:

	    dev->condition[1] |= JOY_Y_AXIS;

	    break;

	case BUTTON_LEFT_TRIGGER:

	case BUTTON_RIGHT_TRIGGER:

	    dev->condition[0] |= value;

	    break;

	default:

	    dev->condition[0] &= ~value;

	}

    } else {

	switch(value ) {

	case JOY_LEFT:

	case JOY_RIGHT:

	    dev->condition[1] = (dev->condition[1] & ~JOY_X_AXIS)| JOY_X_AXIS_CENTER;

	    break;

	case JOY_UP:

	case JOY_DOWN:

	    dev->condition[1] = (dev->condition[1] & ~JOY_Y_AXIS)| JOY_Y_AXIS_CENTER;

	    break;

	case BUTTON_LEFT_TRIGGER:

	case BUTTON_RIGHT_TRIGGER:

	    dev->condition[0] &= ~value;

	    break;

	default:

	    dev->condition[0] |= value;

	}

    }

}

dreamcast_config_entry_t controller_get_config( maple_device_t mdev )

{

    controller_device_t dev = (controller_device_t)mdev;

    return dev->config;

}

void controller_destroy( maple_device_t mdev )

{

    free( mdev );

}

/**

 * Device is being attached to the bus. Go through the config and reserve the

 * keys we need.

 */

void controller_attach( maple_device_t mdev )

{

    controller_device_t dev = (controller_device_t)mdev;

    input_register_key( dev->config[0].value, controller_key_callback, dev, BUTTON_DPAD_LEFT );

    input_register_key( dev->config[1].value, controller_key_callback, dev, BUTTON_DPAD_RIGHT );

    input_register_key( dev->config[2].value, controller_key_callback, dev, BUTTON_DPAD_UP );

    input_register_key( dev->config[3].value, controller_key_callback, dev, BUTTON_DPAD_DOWN );

    input_register_key( dev->config[4].value, controller_key_callback, dev, JOY_LEFT );

    input_register_key( dev->config[5].value, controller_key_callback, dev, JOY_RIGHT );

    input_register_key( dev->config[6].value, controller_key_callback, dev, JOY_UP );

    input_register_key( dev->config[7].value, controller_key_callback, dev, JOY_DOWN );

    input_register_key( dev->config[8].value, controller_key_callback, dev, BUTTON_X );

    input_register_key( dev->config[9].value, controller_key_callback, dev, BUTTON_Y );

    input_register_key( dev->config[10].value, controller_key_callback, dev, BUTTON_A );

    input_register_key( dev->config[11].value, controller_key_callback, dev, BUTTON_B );

    input_register_key( dev->config[12].value, controller_key_callback, dev, BUTTON_LEFT_TRIGGER );

    input_register_key( dev->config[13].value, controller_key_callback, dev, BUTTON_RIGHT_TRIGGER );

    input_register_key( dev->config[14].value, controller_key_callback, dev, BUTTON_START );

}

void controller_detach( maple_device_t dev )

{

}

int controller_get_cond( maple_device_t mdev, int function, unsigned char *outbuf,

                         int *outlen )

{

    controller_device_t dev = (controller_device_t)mdev;

    if( function == MAPLE_FUNC_CONTROLLER ) {

        *outlen = 2;

        memcpy( outbuf, dev->condition, 8 );

        return 0;

    } else {

        return MAPLE_ERR_FUNC_UNSUP;

    }

}