Search
lxdream.org :: lxdream/src/maple/controller.c
lxdream 0.9.1
released Jun 29
Download Now
filename src/maple/controller.c
changeset 1034:7044e01148f0
prev1010:a506a2f66180
next1072:d82e04e6d497
author nkeynes
date Wed Jun 24 02:41:12 2009 +0000 (10 years ago)
permissions -rw-r--r--
last change Add initial VMU support
view annotate diff log raw
     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_MASK     0x000000FF
    45 #define JOY_Y_AXIS_MASK     0x0000FF00
    46 #define JOY_X_AXIS_CENTER   0x00000080
    47 #define JOY_Y_AXIS_CENTER   0x00008000
    48 #define JOY2_X_AXIS_MASK    0x00FF0000 /* not on standard controller */
    49 #define JOY2_Y_AXIS_MASK    0xFF000000 /* not on standard controller */
    51 #define JOY_X_AXIS(x)       ((x)&0xFF)
    52 #define JOY_Y_AXIS(y)       (((y)&0xFF)<<8)
    54 /* The following bits are used by the emulator for flags but don't actually
    55  * appear in the hardware
    56  */
    57 #define JOY_LEFT            0x80000001
    58 #define JOY_RIGHT           0x80000002
    59 #define JOY_UP              0x80000004
    60 #define JOY_DOWN            0x80000008
    62 /* Standard controller ID */
    63 #define CONTROLLER_IDENT {0x00, 0x00, 0x00, 0x01,  0x00, 0x0f, 0x06, 0xfe,  0x00, 0x00, 0x00, 0x00, \
    64     0x00, 0x00, 0x00, 0x00,  0xff, 0x00, 0x44, 0x72,  0x65, 0x61, 0x6d, 0x63,  0x61, 0x73, 0x74, 0x20,  \
    65     0x43, 0x6f, 0x6e, 0x74,  0x72, 0x6f, 0x6c, 0x6c,  0x65, 0x72, 0x20, 0x20,  0x20, 0x20, 0x20, 0x20, \
    66     0x20, 0x20, 0x20, 0x20,  0x50, 0x72, 0x6f, 0x64,  0x75, 0x63, 0x65, 0x64,  0x20, 0x42, 0x79, 0x20, \
    67     0x6f, 0x72, 0x20, 0x55,  0x6e, 0x64, 0x65, 0x72,  0x20, 0x4c, 0x69, 0x63,  0x65, 0x6e, 0x73, 0x65, \
    68     0x20, 0x46, 0x72, 0x6f,  0x6d, 0x20, 0x53, 0x45,  0x47, 0x41, 0x20, 0x45,  0x4e, 0x54, 0x45, 0x52, \
    69     0x50, 0x52, 0x49, 0x53,  0x45, 0x53, 0x2c, 0x4c,  0x54, 0x44, 0x2e, 0x20,  0x20, 0x20, 0x20, 0x20, \
    70     0xae, 0x01, 0xf4, 0x01}
    71 #define CONTROLLER_VERSION {0x56, 0x65, 0x72, 0x73,  0x69, 0x6f, 0x6e, 0x20,  0x31, 0x2e, 0x30, 0x31, \
    72     0x30, 0x2c, 0x31, 0x39,  0x39, 0x38, 0x2f, 0x30,  0x39, 0x2f, 0x32, 0x38,  0x2c, 0x33, 0x31, 0x35, \
    73     0x2d, 0x36, 0x32, 0x31,  0x31, 0x2d, 0x41, 0x42,  0x20, 0x20, 0x20, 0x2c,  0x41, 0x6e, 0x61, 0x6c, \
    74     0x6f, 0x67, 0x20, 0x4d,  0x6f, 0x64, 0x75, 0x6c,  0x65, 0x20, 0x3a, 0x20,  0x54, 0x68, 0x65, 0x20, \
    75     0x34, 0x74, 0x68, 0x20,  0x45, 0x64, 0x69, 0x74,  0x69, 0x6f, 0x6e, 0x2e,  0x35, 0x2f, 0x38, 0x20, \
    76     0x20, 0x2b, 0x44, 0x46 }
    78 #define CONTROLLER_CONFIG_ENTRIES 15
    80 static void controller_attach( maple_device_t dev );
    81 static void controller_detach( maple_device_t dev );
    82 static void controller_destroy( maple_device_t dev );
    83 static maple_device_t controller_clone( maple_device_t dev );
    84 static maple_device_t controller_new();
    85 static lxdream_config_entry_t controller_get_config( maple_device_t dev );
    86 static void controller_set_config_value( maple_device_t dev, unsigned int key, const gchar *value );
    87 static int controller_get_cond( maple_device_t dev, int function, unsigned char *outbuf,
    88                          unsigned int *outlen );
    90 typedef struct controller_device {
    91     struct maple_device dev;
    92     uint32_t condition[2];
    93     struct lxdream_config_entry config[CONTROLLER_CONFIG_ENTRIES+1];
    94 } *controller_device_t;
    96 struct maple_device_class controller_class = { "Sega Controller",
    97         MAPLE_TYPE_PRIMARY|MAPLE_GRAB_DONTCARE|MAPLE_SLOTS_2,  controller_new };
    99 static struct controller_device base_controller = {
   100         { MAPLE_DEVICE_TAG, &controller_class,
   101           CONTROLLER_IDENT, CONTROLLER_VERSION, 
   102           controller_get_config, controller_set_config_value, 
   103           controller_attach, controller_detach, controller_destroy,
   104           controller_clone, NULL, NULL, controller_get_cond, NULL, NULL, NULL, NULL, NULL, NULL },
   105           {0x0000FFFF, 0x80808080}, 
   106           {{ "dpad left", N_("Dpad left"), CONFIG_TYPE_KEY },
   107            { "dpad right", N_("Dpad right"), CONFIG_TYPE_KEY },
   108            { "dpad up", N_("Dpad up"), CONFIG_TYPE_KEY },
   109            { "dpad down", N_("Dpad down"), CONFIG_TYPE_KEY },
   110            { "analog left", N_("Analog left"), CONFIG_TYPE_KEY },
   111            { "analog right", N_("Analog right"), CONFIG_TYPE_KEY },
   112            { "analog up", N_("Analog up"), CONFIG_TYPE_KEY },
   113            { "analog down", N_("Analog down"), CONFIG_TYPE_KEY },
   114            { "button X", N_("Button X"), CONFIG_TYPE_KEY },
   115            { "button Y", N_("Button Y"), CONFIG_TYPE_KEY },
   116            { "button A", N_("Button A"), CONFIG_TYPE_KEY },
   117            { "button B", N_("Button B"), CONFIG_TYPE_KEY },
   118            { "trigger left", N_("Trigger left"), CONFIG_TYPE_KEY },
   119            { "trigger right", N_("Trigger right"), CONFIG_TYPE_KEY },
   120            { "start", N_("Start button"), CONFIG_TYPE_KEY },
   121            { NULL, CONFIG_TYPE_NONE }} };
   123 static int config_button_map[] = { 
   124         BUTTON_DPAD_LEFT, BUTTON_DPAD_RIGHT, BUTTON_DPAD_UP, BUTTON_DPAD_DOWN,
   125         JOY_LEFT, JOY_RIGHT, JOY_UP, JOY_DOWN, BUTTON_X, BUTTON_Y, BUTTON_A, 
   126         BUTTON_B, BUTTON_LEFT_TRIGGER, BUTTON_RIGHT_TRIGGER, BUTTON_START };
   128 #define CONTROLLER(x) ((controller_device_t)(x))
   130 static maple_device_t controller_new( )
   131 {
   132     controller_device_t dev = malloc( sizeof(struct controller_device) );
   133     memcpy( dev, &base_controller, sizeof(base_controller) );
   134     return MAPLE_DEVICE(dev);
   135 }
   137 static maple_device_t controller_clone( maple_device_t srcdevice )
   138 {
   139     controller_device_t src = (controller_device_t)srcdevice;
   140     controller_device_t dev = (controller_device_t)controller_new();
   141     lxdream_copy_config_list( dev->config, src->config );
   142     memcpy( dev->condition, src->condition, sizeof(src->condition) );
   143     return MAPLE_DEVICE(dev);
   144 }
   146 /**
   147  * Input callback 
   148  */
   149 static void controller_key_callback( void *mdev, uint32_t value, uint32_t pressure, gboolean isKeyDown )
   150 {
   151     controller_device_t dev = (controller_device_t)mdev;
   152     if( isKeyDown ) {
   153         switch( value ) {
   154         case JOY_LEFT:
   155             dev->condition[1] &= ~JOY_X_AXIS_MASK;
   156             dev->condition[1] |= JOY_X_AXIS(0x7F - pressure);
   157             break;
   158         case JOY_RIGHT:
   159             dev->condition[1] &= ~JOY_X_AXIS_MASK;
   160             dev->condition[1] |= JOY_X_AXIS(0x80 + pressure);
   161             break;
   162         case JOY_UP:
   163             dev->condition[1] &= ~JOY_Y_AXIS_MASK;
   164             dev->condition[1] |= JOY_Y_AXIS(0x7F - pressure);
   165             break;
   166         case JOY_DOWN:
   167             dev->condition[1] &= ~JOY_Y_AXIS_MASK;
   168             dev->condition[1] |= JOY_Y_AXIS(0x80 + pressure);
   169             break;
   170         case BUTTON_LEFT_TRIGGER:
   171         case BUTTON_RIGHT_TRIGGER:
   172             dev->condition[0] |= value;
   173             break;
   174         default:
   175             dev->condition[0] &= ~value;
   176         }
   177     } else {
   178         switch(value ) {
   179         case JOY_LEFT:
   180         case JOY_RIGHT:
   181             dev->condition[1] = (dev->condition[1] & ~JOY_X_AXIS_MASK)| JOY_X_AXIS_CENTER;
   182             break;
   183         case JOY_UP:
   184         case JOY_DOWN:
   185             dev->condition[1] = (dev->condition[1] & ~JOY_Y_AXIS_MASK)| JOY_Y_AXIS_CENTER;
   186             break;
   187         case BUTTON_LEFT_TRIGGER:
   188         case BUTTON_RIGHT_TRIGGER:
   189             dev->condition[0] &= ~value;
   190             break;
   191         default:
   192             dev->condition[0] |= value;
   193         }
   194     }
   195 }
   197 static lxdream_config_entry_t controller_get_config( maple_device_t mdev )
   198 {
   199     controller_device_t dev = (controller_device_t)mdev;
   200     return dev->config;
   201 }
   203 static void controller_set_config_value( maple_device_t mdev, unsigned int key, const gchar *value )
   204 {
   205     controller_device_t dev = (controller_device_t)mdev;
   206     assert( key < CONTROLLER_CONFIG_ENTRIES );
   208     input_unregister_key( dev->config[key].value, controller_key_callback, dev, config_button_map[key] );
   209     lxdream_set_config_value( &dev->config[key], value );
   210     input_register_key( dev->config[key].value, controller_key_callback, dev, config_button_map[key] );
   211 }
   213 static void controller_destroy( maple_device_t mdev )
   214 {
   215     free( mdev );
   216 }
   218 /**
   219  * Device is being attached to the bus. Go through the config and reserve the
   220  * keys we need.
   221  */
   222 static void controller_attach( maple_device_t mdev )
   223 {
   224     controller_device_t dev = (controller_device_t)mdev;
   225     int i;
   226     for( i=0; i<CONTROLLER_CONFIG_ENTRIES; i++ ) {
   227         input_register_key( dev->config[i].value, controller_key_callback, dev, config_button_map[i] );
   228     }
   229 }
   231 static void controller_detach( maple_device_t mdev )
   232 {
   233     controller_device_t dev = (controller_device_t)mdev;
   234     int i;
   235     for( i=0; i<CONTROLLER_CONFIG_ENTRIES; i++ ) {
   236         input_unregister_key( dev->config[i].value, controller_key_callback, dev, config_button_map[i] );
   237     }
   239 }
   242 static int controller_get_cond( maple_device_t mdev, int function, unsigned char *outbuf,
   243                          unsigned int *outlen )
   244 {
   245     controller_device_t dev = (controller_device_t)mdev;
   246     if( function == MAPLE_FUNC_CONTROLLER ) {
   247         *outlen = 2;
   248         memcpy( outbuf, dev->condition, 8 );
   249         return 0;
   250     } else {
   251         return MAPLE_ERR_FUNC_UNSUP;
   252     }
   253 }
.