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lxdream.org :: lxdream/src/maple/kbd.c
lxdream 0.9.1
released Jun 29
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filename src/maple/kbd.c
changeset 838:9abb2fa58934
prev770:429ff505c450
next848:34dc33c05106
author nkeynes
date Tue Sep 02 00:42:43 2008 +0000 (11 years ago)
permissions -rw-r--r--
last change Add flag to maple devices indicating whether they need a mouse grab to operate
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     1 /**
     2  * $Id$
     3  *
     4  * Implements the standard dreamcast keyboard
     5  *
     6  * Copyright (c) 2005 Nathan Keynes.
     7  *
     8  * This program is free software; you can redistribute it and/or modify
     9  * it under the terms of the GNU General Public License as published by
    10  * the Free Software Foundation; either version 2 of the License, or
    11  * (at your option) any later version.
    12  *
    13  * This program is distributed in the hope that it will be useful,
    14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
    15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    16  * GNU General Public License for more details.
    17  */
    19 #include <stdlib.h>
    20 #include <X11/keysym.h>
    21 #include "dream.h"
    22 #include "dreamcast.h"
    23 #include "display.h"
    24 #include "maple.h"
    26 #define KEYBOARD_IDENT {  0x00, 0x00, 0x00, 0x40,  0x02, 0x05, 0x00, 0x80,  0x00, 0x00, 0x00, 0x00, \
    27     0x00, 0x00, 0x00, 0x00,  0x01, 0x00, 0x4b, 0x65,  0x79, 0x62, 0x6f, 0x61,  0x72, 0x64, 0x20, 0x20, \
    28     0x20, 0x20, 0x20, 0x20,  0x20, 0x20, 0x20, 0x20,  0x20, 0x20, 0x20, 0x20,  0x20, 0x20, 0x20, 0x20, \
    29     0x20, 0x20, 0x20, 0x20,  0x50, 0x72, 0x6f, 0x64,  0x75, 0x63, 0x65, 0x64,  0x20, 0x42, 0x79, 0x20, \
    30     0x6f, 0x72, 0x20, 0x55,  0x6e, 0x64, 0x65, 0x72,  0x20, 0x4c, 0x69, 0x63,  0x65, 0x6e, 0x73, 0x65, \
    31     0x20, 0x46, 0x72, 0x6f,  0x6d, 0x20, 0x53, 0x45,  0x47, 0x41, 0x20, 0x45,  0x4e, 0x54, 0x45, 0x52, \
    32     0x50, 0x52, 0x49, 0x53,  0x45, 0x53, 0x2c, 0x4c,  0x54, 0x44, 0x2e, 0x20,  0x20, 0x20, 0x20, 0x20, \
    33     0x2c, 0x01, 0x90, 0x01 }
    35 #define KEYBOARD_VERSION {0x56, 0x65, 0x72, 0x73,  0x69, 0x6f, 0x6e, 0x20,  0x31, 0x2e, 0x30, 0x31, \
    36     0x30, 0x2c, 0x31, 0x39,  0x39, 0x39, 0x2f, 0x30,  0x34, 0x2f, 0x32, 0x37,  0x2c, 0x33, 0x31, 0x35, \
    37     0x2d, 0x36, 0x32, 0x31,  0x31, 0x2d, 0x41, 0x4d,  0x20, 0x20, 0x20, 0x2c,  0x4b, 0x65, 0x79, 0x20, \
    38     0x53, 0x63, 0x61, 0x6e,  0x20, 0x4d, 0x6f, 0x64,  0x75, 0x6c, 0x65, 0x20,  0x3a, 0x20, 0x54, 0x68, \
    39     0x65, 0x20, 0x32, 0x6e,  0x64, 0x20, 0x45, 0x64,  0x69, 0x74, 0x69, 0x6f,  0x6e, 0x2e, 0x20, 0x30, \
    40     0x34, 0x2f, 0x32, 0x35 }
    42 void keyboard_attach( maple_device_t dev );
    43 void keyboard_detach( maple_device_t dev );
    44 maple_device_t keyboard_clone( maple_device_t dev );
    45 maple_device_t keyboard_new();
    46 int keyboard_get_cond( maple_device_t dev, int function, unsigned char *outbuf,
    47                        unsigned int *outlen );
    49 typedef struct keyboard_device {
    50     struct maple_device dev;
    51     uint8_t condition[8];
    52 } *keyboard_device_t; 
    54 struct maple_device_class keyboard_class = { "Sega Keyboard", keyboard_new };
    56 static struct keyboard_device base_keyboard = {
    57         { MAPLE_DEVICE_TAG, &keyboard_class, MAPLE_GRAB_DONTCARE,
    58                 KEYBOARD_IDENT, KEYBOARD_VERSION, 
    59                 NULL, NULL, keyboard_attach, keyboard_detach, maple_default_destroy,
    60                 keyboard_clone, NULL, NULL, keyboard_get_cond, NULL, NULL, NULL },
    61                 {0,0,0,0,0,0,0,0}, 
    62 };
    64 #define KEYBOARD(x) ((keyboard_device_t)(x))
    66 maple_device_t keyboard_new( )
    67 {
    68     keyboard_device_t dev = malloc( sizeof(struct keyboard_device) );
    69     memcpy( dev, &base_keyboard, sizeof(base_keyboard) );
    70     return MAPLE_DEVICE(dev);
    71 }
    73 maple_device_t keyboard_clone( maple_device_t srcdevice )
    74 {
    75     keyboard_device_t src = (keyboard_device_t)srcdevice;
    76     keyboard_device_t dev = (keyboard_device_t)keyboard_new();
    77     memcpy( dev->condition, src->condition, sizeof(src->condition) );
    78     return MAPLE_DEVICE(dev);
    79 }
    81 void keyboard_key_down( keyboard_device_t dev, uint8_t key )
    82 {
    83     int i;
    84     for( i=2; i<8; i++ ) {
    85         if( dev->condition[i] == key ) {
    86             return; // key already down, missed event or repeat
    87         } else if( dev->condition[i] == 0 ) {
    88             dev->condition[i] = key;
    89             return;
    90         }
    91     }
    92     /* Key array is full - skip for the moment */
    93 }
    95 void keyboard_key_up( keyboard_device_t dev, uint8_t key )
    96 {
    97     int i;
    98     for( i=2; i<8; i++ ) {
    99         if( dev->condition[i] == key ) {
   100             for( ; i<7; i++ ) {
   101                 dev->condition[i] = dev->condition[i+1];
   102             }
   103             dev->condition[7] = 0;
   104             break;
   105         }
   106     }
   107 }
   109 void keyboard_input_hook( void *mdev, uint32_t keycode, uint32_t pressure, gboolean isKeyDown )
   110 {
   111     keyboard_device_t dev = (keyboard_device_t)mdev;
   112     uint16_t key = input_keycode_to_dckeysym( keycode );
   113     if( key != 0 ) {
   114         if( key >> 8 == 0xFF ) { // shift 
   115             if( isKeyDown ) {
   116                 dev->condition[0] |= (key&0xFF);
   117             } else {
   118                 dev->condition[0] &= ~(key&0xFF);
   119             }
   120         } else {
   121             if( isKeyDown ) {
   122                 keyboard_key_down( dev, (uint8_t)key );
   123             } else {
   124                 keyboard_key_up( dev, (uint8_t)key );
   125             }
   126         }
   127     }
   128     /*
   129     fprintf( stderr, "Key cond: %02X %02X  %02X %02X %02X %02X %02X %02X\n",
   130 	     dev->condition[0], dev->condition[1], dev->condition[2],
   131 	     dev->condition[3], dev->condition[4], dev->condition[5],
   132 	     dev->condition[6], dev->condition[7] );
   133      */     
   134 }
   136 /**
   137  * Device is being attached to the bus. Go through the config and reserve the
   138  * keys we need.
   139  */
   140 void keyboard_attach( maple_device_t mdev )
   141 {
   142     input_register_hook( keyboard_input_hook, mdev );
   143 }
   145 void keyboard_detach( maple_device_t mdev )
   146 {
   147     input_unregister_hook( keyboard_input_hook, mdev );
   148 }
   151 int keyboard_get_cond( maple_device_t mdev, int function, unsigned char *outbuf,
   152                        unsigned int *outlen )
   153 {
   154     keyboard_device_t dev = (keyboard_device_t)mdev;
   155     if( function == MAPLE_FUNC_KEYBOARD ) {
   156         *outlen = 2;
   157         memcpy( outbuf, dev->condition, 8 );
   158         return 0;
   159     } else {
   160         return MAPLE_ERR_FUNC_UNSUP;
   161     }
   162 }
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