/**

  * $Id$

  *

  * 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 <assert.h>

 #include "dream.h"

 #include "dreamcast.h"

 #include "display.h"

 #include "maple.h"

 #include "maple/controller.h"

 #define CONTROLLER_CONFIG_ENTRIES 15

 static void controller_attach( maple_device_t dev );

 static void controller_detach( maple_device_t dev );

 static void controller_destroy( maple_device_t dev );

 static maple_device_t controller_clone( maple_device_t dev );

 static maple_device_t controller_new();

 static lxdream_config_entry_t controller_get_config( maple_device_t dev );

 static void controller_set_config_value( maple_device_t dev, unsigned int key, const gchar *value );

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

                          unsigned int *outlen );

 typedef struct controller_device {

     struct maple_device dev;

     uint32_t condition[2];

     struct lxdream_config_entry config[CONTROLLER_CONFIG_ENTRIES+1];

 } *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_set_config_value, 

           controller_attach, controller_detach, controller_destroy,

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

           {0x0000FFFF, 0x80808080}, 

           {{ "dpad left", N_("Dpad left"), CONFIG_TYPE_KEY },

            { "dpad right", N_("Dpad right"), CONFIG_TYPE_KEY },

            { "dpad up", N_("Dpad up"), CONFIG_TYPE_KEY },

            { "dpad down", N_("Dpad down"), CONFIG_TYPE_KEY },

            { "analog left", N_("Analog left"), CONFIG_TYPE_KEY },

            { "analog right", N_("Analog right"), CONFIG_TYPE_KEY },

            { "analog up", N_("Analog up"), CONFIG_TYPE_KEY },

            { "analog down", N_("Analog down"), CONFIG_TYPE_KEY },

            { "button X", N_("Button X"), CONFIG_TYPE_KEY },

            { "button Y", N_("Button Y"), CONFIG_TYPE_KEY },

            { "button A", N_("Button A"), CONFIG_TYPE_KEY },

            { "button B", N_("Button B"), CONFIG_TYPE_KEY },

            { "trigger left", N_("Trigger left"), CONFIG_TYPE_KEY },

            { "trigger right", N_("Trigger right"), CONFIG_TYPE_KEY },

            { "start", N_("Start button"), CONFIG_TYPE_KEY },

            { NULL, CONFIG_TYPE_NONE }} };

 static int config_button_map[] = { 

         BUTTON_DPAD_LEFT, BUTTON_DPAD_RIGHT, BUTTON_DPAD_UP, BUTTON_DPAD_DOWN,

         JOY_LEFT, JOY_RIGHT, JOY_UP, JOY_DOWN, BUTTON_X, BUTTON_Y, BUTTON_A, 

         BUTTON_B, BUTTON_LEFT_TRIGGER, BUTTON_RIGHT_TRIGGER, BUTTON_START };

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

 static 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);

 }

 static maple_device_t controller_clone( maple_device_t srcdevice )

 {

     controller_device_t src = (controller_device_t)srcdevice;

     controller_device_t dev = (controller_device_t)controller_new();

     lxdream_copy_config_list( dev->config, src->config );

     memcpy( dev->condition, src->condition, sizeof(src->condition) );

     return MAPLE_DEVICE(dev);

 }

 /**

  * Input callback 

  */

 static void controller_key_callback( void *mdev, uint32_t value, uint32_t pressure, 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;

         }

     }

 }

 static lxdream_config_entry_t controller_get_config( maple_device_t mdev )

 {

     controller_device_t dev = (controller_device_t)mdev;

     return dev->config;

 }

 static void controller_set_config_value( maple_device_t mdev, unsigned int key, const gchar *value )

 {

     controller_device_t dev = (controller_device_t)mdev;

     assert( key < CONTROLLER_CONFIG_ENTRIES );

     input_unregister_key( dev->config[key].value, controller_key_callback, dev, config_button_map[key] );

     lxdream_set_config_value( &dev->config[key], value );

     input_register_key( dev->config[key].value, controller_key_callback, dev, config_button_map[key] );

 }

 static 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.

  */

 static void controller_attach( maple_device_t mdev )

 {

     controller_device_t dev = (controller_device_t)mdev;

     int i;

     for( i=0; i<CONTROLLER_CONFIG_ENTRIES; i++ ) {

         input_register_key( dev->config[i].value, controller_key_callback, dev, config_button_map[i] );

     }

 }

 static void controller_detach( maple_device_t mdev )

 {

     controller_device_t dev = (controller_device_t)mdev;

     int i;

     for( i=0; i<CONTROLLER_CONFIG_ENTRIES; i++ ) {

         input_unregister_key( dev->config[i].value, controller_key_callback, dev, config_button_map[i] );

     }

 }

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

                          unsigned 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;

     }

 }