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lxdream.org :: lxdream/src/maple/controller.c
lxdream 0.9.1
released Jun 29
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filename src/maple/controller.c
changeset 850:28782ebbd01d
prev848:34dc33c05106
next1010:a506a2f66180
author nkeynes
date Mon Sep 08 07:56:33 2008 +0000 (11 years ago)
permissions -rw-r--r--
last change Add lightgun support
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     1 /**
     2  * $Id$
     3  *
     4  * Implements the standard dreamcast controller
     5  * Part No. HKT-7700
     6  *
     7  * Copyright (c) 2005 Nathan Keynes.
     8  *
     9  * This program is free software; you can redistribute it and/or modify
    10  * it under the terms of the GNU General Public License as published by
    11  * the Free Software Foundation; either version 2 of the License, or
    12  * (at your option) any later version.
    13  *
    14  * This program is distributed in the hope that it will be useful,
    15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
    16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    17  * GNU General Public License for more details.
    18  */
    20 #include <stdlib.h>
    21 #include <assert.h>
    22 #include "dream.h"
    23 #include "dreamcast.h"
    24 #include "display.h"
    25 #include "maple.h"
    27 /* First word of controller condition */
    28 #define BUTTON_C            0x00000001 /* not on standard controller */
    29 #define BUTTON_B            0x00000002
    30 #define BUTTON_A            0x00000004
    31 #define BUTTON_START        0x00000008
    32 #define BUTTON_DPAD_UP      0x00000010
    33 #define BUTTON_DPAD_DOWN    0x00000020
    34 #define BUTTON_DPAD_LEFT    0x00000040
    35 #define BUTTON_DPAD_RIGHT   0x00000080
    36 #define BUTTON_Z            0x00000100 /* not on standard controller */
    37 #define BUTTON_Y            0x00000200
    38 #define BUTTON_X            0x00000400
    39 #define BUTTON_D            0x00000800 /* not on standard controller */
    40 #define BUTTON_LEFT_TRIGGER 0xFF000000 /* Bitmask */
    41 #define BUTTON_RIGHT_TRIGGER 0x00FF0000 /* Bitmask */
    43 /* Second word of controller condition (bitmasks) */
    44 #define JOY_X_AXIS          0x000000FF
    45 #define JOY_Y_AXIS          0x0000FF00
    46 #define JOY_X_AXIS_CENTER   0x00000080
    47 #define JOY_Y_AXIS_CENTER   0x00008000
    48 #define JOY2_X_AXIS         0x00FF0000 /* not on standard controller */
    49 #define JOY2_Y_AXIS         0xFF000000 /* not on standard controller */
    51 /* The following bits are used by the emulator for flags but don't actually
    52  * appear in the hardware
    53  */
    54 #define JOY_LEFT            0x80000001
    55 #define JOY_RIGHT           0x80000002
    56 #define JOY_UP              0x80000004
    57 #define JOY_DOWN            0x80000008
    59 /* Standard controller ID */
    60 #define CONTROLLER_IDENT {0x00, 0x00, 0x00, 0x01,  0x00, 0x0f, 0x06, 0xfe,  0x00, 0x00, 0x00, 0x00, \
    61     0x00, 0x00, 0x00, 0x00,  0xff, 0x00, 0x44, 0x72,  0x65, 0x61, 0x6d, 0x63,  0x61, 0x73, 0x74, 0x20,  \
    62     0x43, 0x6f, 0x6e, 0x74,  0x72, 0x6f, 0x6c, 0x6c,  0x65, 0x72, 0x20, 0x20,  0x20, 0x20, 0x20, 0x20, \
    63     0x20, 0x20, 0x20, 0x20,  0x50, 0x72, 0x6f, 0x64,  0x75, 0x63, 0x65, 0x64,  0x20, 0x42, 0x79, 0x20, \
    64     0x6f, 0x72, 0x20, 0x55,  0x6e, 0x64, 0x65, 0x72,  0x20, 0x4c, 0x69, 0x63,  0x65, 0x6e, 0x73, 0x65, \
    65     0x20, 0x46, 0x72, 0x6f,  0x6d, 0x20, 0x53, 0x45,  0x47, 0x41, 0x20, 0x45,  0x4e, 0x54, 0x45, 0x52, \
    66     0x50, 0x52, 0x49, 0x53,  0x45, 0x53, 0x2c, 0x4c,  0x54, 0x44, 0x2e, 0x20,  0x20, 0x20, 0x20, 0x20, \
    67     0xae, 0x01, 0xf4, 0x01}
    68 #define CONTROLLER_VERSION {0x56, 0x65, 0x72, 0x73,  0x69, 0x6f, 0x6e, 0x20,  0x31, 0x2e, 0x30, 0x31, \
    69     0x30, 0x2c, 0x31, 0x39,  0x39, 0x38, 0x2f, 0x30,  0x39, 0x2f, 0x32, 0x38,  0x2c, 0x33, 0x31, 0x35, \
    70     0x2d, 0x36, 0x32, 0x31,  0x31, 0x2d, 0x41, 0x42,  0x20, 0x20, 0x20, 0x2c,  0x41, 0x6e, 0x61, 0x6c, \
    71     0x6f, 0x67, 0x20, 0x4d,  0x6f, 0x64, 0x75, 0x6c,  0x65, 0x20, 0x3a, 0x20,  0x54, 0x68, 0x65, 0x20, \
    72     0x34, 0x74, 0x68, 0x20,  0x45, 0x64, 0x69, 0x74,  0x69, 0x6f, 0x6e, 0x2e,  0x35, 0x2f, 0x38, 0x20, \
    73     0x20, 0x2b, 0x44, 0x46 }
    75 #define CONTROLLER_CONFIG_ENTRIES 15
    77 static void controller_attach( maple_device_t dev );
    78 static void controller_detach( maple_device_t dev );
    79 static void controller_destroy( maple_device_t dev );
    80 static maple_device_t controller_clone( maple_device_t dev );
    81 static maple_device_t controller_new();
    82 static lxdream_config_entry_t controller_get_config( maple_device_t dev );
    83 static void controller_set_config_value( maple_device_t dev, unsigned int key, const gchar *value );
    84 static int controller_get_cond( maple_device_t dev, int function, unsigned char *outbuf,
    85                          unsigned int *outlen );
    87 typedef struct controller_device {
    88     struct maple_device dev;
    89     uint32_t condition[2];
    90     struct lxdream_config_entry config[CONTROLLER_CONFIG_ENTRIES+1];
    91 } *controller_device_t;
    93 struct maple_device_class controller_class = { "Sega Controller", controller_new };
    95 static struct controller_device base_controller = {
    96         { MAPLE_DEVICE_TAG, &controller_class, MAPLE_GRAB_DONTCARE,
    97           CONTROLLER_IDENT, CONTROLLER_VERSION, 
    98           controller_get_config, controller_set_config_value, 
    99           controller_attach, controller_detach, controller_destroy,
   100           controller_clone, NULL, NULL, controller_get_cond, NULL, NULL, NULL, NULL, NULL },
   101           {0x0000FFFF, 0x80808080}, 
   102           {{ "dpad left", N_("Dpad left"), CONFIG_TYPE_KEY },
   103            { "dpad right", N_("Dpad right"), CONFIG_TYPE_KEY },
   104            { "dpad up", N_("Dpad up"), CONFIG_TYPE_KEY },
   105            { "dpad down", N_("Dpad down"), CONFIG_TYPE_KEY },
   106            { "analog left", N_("Analog left"), CONFIG_TYPE_KEY },
   107            { "analog right", N_("Analog right"), CONFIG_TYPE_KEY },
   108            { "analog up", N_("Analog up"), CONFIG_TYPE_KEY },
   109            { "analog down", N_("Analog down"), CONFIG_TYPE_KEY },
   110            { "button X", N_("Button X"), CONFIG_TYPE_KEY },
   111            { "button Y", N_("Button Y"), CONFIG_TYPE_KEY },
   112            { "button A", N_("Button A"), CONFIG_TYPE_KEY },
   113            { "button B", N_("Button B"), CONFIG_TYPE_KEY },
   114            { "trigger left", N_("Trigger left"), CONFIG_TYPE_KEY },
   115            { "trigger right", N_("Trigger right"), CONFIG_TYPE_KEY },
   116            { "start", N_("Start button"), CONFIG_TYPE_KEY },
   117            { NULL, CONFIG_TYPE_NONE }} };
   119 static int config_button_map[] = { 
   120         BUTTON_DPAD_LEFT, BUTTON_DPAD_RIGHT, BUTTON_DPAD_UP, BUTTON_DPAD_DOWN,
   121         JOY_LEFT, JOY_RIGHT, JOY_UP, JOY_DOWN, BUTTON_X, BUTTON_Y, BUTTON_A, 
   122         BUTTON_B, BUTTON_LEFT_TRIGGER, BUTTON_RIGHT_TRIGGER, BUTTON_START };
   124 #define CONTROLLER(x) ((controller_device_t)(x))
   126 static maple_device_t controller_new( )
   127 {
   128     controller_device_t dev = malloc( sizeof(struct controller_device) );
   129     memcpy( dev, &base_controller, sizeof(base_controller) );
   130     return MAPLE_DEVICE(dev);
   131 }
   133 static maple_device_t controller_clone( maple_device_t srcdevice )
   134 {
   135     controller_device_t src = (controller_device_t)srcdevice;
   136     controller_device_t dev = (controller_device_t)controller_new();
   137     lxdream_copy_config_list( dev->config, src->config );
   138     memcpy( dev->condition, src->condition, sizeof(src->condition) );
   139     return MAPLE_DEVICE(dev);
   140 }
   142 /**
   143  * Input callback 
   144  */
   145 static void controller_key_callback( void *mdev, uint32_t value, uint32_t pressure, gboolean isKeyDown )
   146 {
   147     controller_device_t dev = (controller_device_t)mdev;
   148     if( isKeyDown ) {
   149         switch( value ) {
   150         case JOY_LEFT:
   151             dev->condition[1] &= ~JOY_X_AXIS;
   152             break;
   153         case JOY_RIGHT:
   154             dev->condition[1] |= JOY_X_AXIS;
   155             break;
   156         case JOY_UP:
   157             dev->condition[1] &= ~JOY_Y_AXIS;
   158             break;
   159         case JOY_DOWN:
   160             dev->condition[1] |= JOY_Y_AXIS;
   161             break;
   162         case BUTTON_LEFT_TRIGGER:
   163         case BUTTON_RIGHT_TRIGGER:
   164             dev->condition[0] |= value;
   165             break;
   166         default:
   167             dev->condition[0] &= ~value;
   168         }
   169     } else {
   170         switch(value ) {
   171         case JOY_LEFT:
   172         case JOY_RIGHT:
   173             dev->condition[1] = (dev->condition[1] & ~JOY_X_AXIS)| JOY_X_AXIS_CENTER;
   174             break;
   175         case JOY_UP:
   176         case JOY_DOWN:
   177             dev->condition[1] = (dev->condition[1] & ~JOY_Y_AXIS)| JOY_Y_AXIS_CENTER;
   178             break;
   179         case BUTTON_LEFT_TRIGGER:
   180         case BUTTON_RIGHT_TRIGGER:
   181             dev->condition[0] &= ~value;
   182             break;
   183         default:
   184             dev->condition[0] |= value;
   185         }
   186     }
   187 }
   189 static lxdream_config_entry_t controller_get_config( maple_device_t mdev )
   190 {
   191     controller_device_t dev = (controller_device_t)mdev;
   192     return dev->config;
   193 }
   195 static void controller_set_config_value( maple_device_t mdev, unsigned int key, const gchar *value )
   196 {
   197     controller_device_t dev = (controller_device_t)mdev;
   198     assert( key < CONTROLLER_CONFIG_ENTRIES );
   200     input_unregister_key( dev->config[key].value, controller_key_callback, dev, config_button_map[key] );
   201     lxdream_set_config_value( &dev->config[key], value );
   202     input_register_key( dev->config[key].value, controller_key_callback, dev, config_button_map[key] );
   203 }
   205 static void controller_destroy( maple_device_t mdev )
   206 {
   207     free( mdev );
   208 }
   210 /**
   211  * Device is being attached to the bus. Go through the config and reserve the
   212  * keys we need.
   213  */
   214 static void controller_attach( maple_device_t mdev )
   215 {
   216     controller_device_t dev = (controller_device_t)mdev;
   217     int i;
   218     for( i=0; i<CONTROLLER_CONFIG_ENTRIES; i++ ) {
   219         input_register_key( dev->config[i].value, controller_key_callback, dev, config_button_map[i] );
   220     }
   221 }
   223 static void controller_detach( maple_device_t mdev )
   224 {
   225     controller_device_t dev = (controller_device_t)mdev;
   226     int i;
   227     for( i=0; i<CONTROLLER_CONFIG_ENTRIES; i++ ) {
   228         input_unregister_key( dev->config[i].value, controller_key_callback, dev, config_button_map[i] );
   229     }
   231 }
   234 static int controller_get_cond( maple_device_t mdev, int function, unsigned char *outbuf,
   235                          unsigned int *outlen )
   236 {
   237     controller_device_t dev = (controller_device_t)mdev;
   238     if( function == MAPLE_FUNC_CONTROLLER ) {
   239         *outlen = 2;
   240         memcpy( outbuf, dev->condition, 8 );
   241         return 0;
   242     } else {
   243         return MAPLE_ERR_FUNC_UNSUP;
   244     }
   245 }
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