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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 608:4f588e52bce0
next611:0c5f53a87501
author nkeynes
date Sat Jan 26 02:45:27 2008 +0000 (11 years ago)
permissions -rw-r--r--
last change Bug #50: Implement mouse and keyboard
file annotate diff log raw
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/**
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 * $Id: kbd.c 602 2008-01-15 20:50:23Z nkeynes $
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 *
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 * Implements the standard dreamcast keyboard
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 *
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 * Copyright (c) 2005 Nathan Keynes.
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 *
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 * This program is free software; you can redistribute it and/or modify
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 * it under the terms of the GNU General Public License as published by
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 * the Free Software Foundation; either version 2 of the License, or
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 * (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU General Public License for more details.
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 */
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#include <stdlib.h>
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#include <X11/keysym.h>
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#include "dream.h"
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#include "dreamcast.h"
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#include "display.h"
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#include "maple.h"
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#define KEYBOARD_IDENT {  0x00, 0x00, 0x00, 0x40,  0x02, 0x05, 0x00, 0x80,  0x00, 0x00, 0x00, 0x00, \
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 0x00, 0x00, 0x00, 0x00,  0x01, 0x00, 0x4b, 0x65,  0x79, 0x62, 0x6f, 0x61,  0x72, 0x64, 0x20, 0x20, \
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 0x20, 0x20, 0x20, 0x20,  0x20, 0x20, 0x20, 0x20,  0x20, 0x20, 0x20, 0x20,  0x20, 0x20, 0x20, 0x20, \
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 0x20, 0x20, 0x20, 0x20,  0x50, 0x72, 0x6f, 0x64,  0x75, 0x63, 0x65, 0x64,  0x20, 0x42, 0x79, 0x20, \
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 0x6f, 0x72, 0x20, 0x55,  0x6e, 0x64, 0x65, 0x72,  0x20, 0x4c, 0x69, 0x63,  0x65, 0x6e, 0x73, 0x65, \
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 0x20, 0x46, 0x72, 0x6f,  0x6d, 0x20, 0x53, 0x45,  0x47, 0x41, 0x20, 0x45,  0x4e, 0x54, 0x45, 0x52, \
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 0x50, 0x52, 0x49, 0x53,  0x45, 0x53, 0x2c, 0x4c,  0x54, 0x44, 0x2e, 0x20,  0x20, 0x20, 0x20, 0x20, \
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 0x2c, 0x01, 0x90, 0x01 }
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#define KEYBOARD_VERSION {0x56, 0x65, 0x72, 0x73,  0x69, 0x6f, 0x6e, 0x20,  0x31, 0x2e, 0x30, 0x31, \
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 0x30, 0x2c, 0x31, 0x39,  0x39, 0x39, 0x2f, 0x30,  0x34, 0x2f, 0x32, 0x37,  0x2c, 0x33, 0x31, 0x35, \
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 0x2d, 0x36, 0x32, 0x31,  0x31, 0x2d, 0x41, 0x4d,  0x20, 0x20, 0x20, 0x2c,  0x4b, 0x65, 0x79, 0x20, \
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 0x53, 0x63, 0x61, 0x6e,  0x20, 0x4d, 0x6f, 0x64,  0x75, 0x6c, 0x65, 0x20,  0x3a, 0x20, 0x54, 0x68, \
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 0x65, 0x20, 0x32, 0x6e,  0x64, 0x20, 0x45, 0x64,  0x69, 0x74, 0x69, 0x6f,  0x6e, 0x2e, 0x20, 0x30, \
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 0x34, 0x2f, 0x32, 0x35 }
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void keyboard_attach( maple_device_t dev );
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void keyboard_detach( maple_device_t dev );
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maple_device_t keyboard_clone( maple_device_t dev );
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maple_device_t keyboard_new();
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int keyboard_get_cond( maple_device_t dev, int function, unsigned char *outbuf,
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                         unsigned int *outlen );
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typedef struct keyboard_device {
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    struct maple_device dev;
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    uint8_t condition[8];
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} *keyboard_device_t; 
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struct maple_device_class keyboard_class = { "Sega Keyboard", keyboard_new };
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static struct keyboard_device base_keyboard = {
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    { MAPLE_DEVICE_TAG, &keyboard_class, KEYBOARD_IDENT, KEYBOARD_VERSION, 
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      NULL, keyboard_attach, keyboard_detach, maple_default_destroy,
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      keyboard_clone, NULL, NULL, keyboard_get_cond, NULL, NULL, NULL },
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    {0,0,0,0,0,0,0,0}, 
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};
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#define KEYBOARD(x) ((keyboard_device_t)(x))
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maple_device_t keyboard_new( )
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{
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    keyboard_device_t dev = malloc( sizeof(struct keyboard_device) );
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    memcpy( dev, &base_keyboard, sizeof(base_keyboard) );
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    return MAPLE_DEVICE(dev);
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}
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maple_device_t keyboard_clone( maple_device_t srcdevice )
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{
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    keyboard_device_t src = (keyboard_device_t)srcdevice;
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    keyboard_device_t dev = (keyboard_device_t)keyboard_new();
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    memcpy( dev->condition, src->condition, sizeof(src->condition) );
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    return MAPLE_DEVICE(dev);
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}
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void keyboard_key_down( keyboard_device_t dev, uint8_t key )
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{
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    int i;
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    for( i=2; i<8; i++ ) {
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	if( dev->condition[i] == key ) {
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	    return; // key already down, missed event or repeat
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	} else if( dev->condition[i] == 0 ) {
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	    dev->condition[i] = key;
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	    return;
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	}
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    }
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    /* Key array is full - skip for the moment */
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}
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void keyboard_key_up( keyboard_device_t dev, uint8_t key )
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{
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    int i;
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    for( i=2; i<8; i++ ) {
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	if( dev->condition[i] == key ) {
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	    for( ; i<7; i++ ) {
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		dev->condition[i] = dev->condition[i+1];
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	    }
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	    dev->condition[7] = 0;
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	    break;
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	}
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    }
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}
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void keyboard_input_hook( void *mdev, uint32_t keycode, gboolean isKeyDown )
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{
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    keyboard_device_t dev = (keyboard_device_t)mdev;
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    uint16_t key = input_keycode_to_dckeysym( keycode );
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    if( key != 0 ) {
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	if( key >> 8 == 0xFF ) { // shift 
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	    if( isKeyDown ) {
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		dev->condition[0] |= (key&0xFF);
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	    } else {
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		dev->condition[0] &= ~(key&0xFF);
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	    }
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	} else {
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	    if( isKeyDown ) {
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		keyboard_key_down( dev, (uint8_t)key );
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	    } else {
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		keyboard_key_up( dev, (uint8_t)key );
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	    }
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	}
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    }
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    /*
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    fprintf( stderr, "Key cond: %02X %02X  %02X %02X %02X %02X %02X %02X\n",
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	     dev->condition[0], dev->condition[1], dev->condition[2],
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	     dev->condition[3], dev->condition[4], dev->condition[5],
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	     dev->condition[6], dev->condition[7] );
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    */     
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}
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/**
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 * Device is being attached to the bus. Go through the config and reserve the
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 * keys we need.
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 */
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void keyboard_attach( maple_device_t mdev )
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{
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    input_register_hook( keyboard_input_hook, mdev );
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}
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void keyboard_detach( maple_device_t mdev )
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{
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    input_unregister_hook( keyboard_input_hook, mdev );
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}
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int keyboard_get_cond( maple_device_t mdev, int function, unsigned char *outbuf,
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		       unsigned int *outlen )
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{
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    keyboard_device_t dev = (keyboard_device_t)mdev;
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    if( function == MAPLE_FUNC_KEYBOARD ) {
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        *outlen = 2;
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        memcpy( outbuf, dev->condition, 8 );
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        return 0;
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    } else {
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        return MAPLE_ERR_FUNC_UNSUP;
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    }
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}
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.