63bd5be0 |
1 | /* FCE Ultra - NES/Famicom Emulator |
2 | * |
3 | * Copyright notice for this file: |
4 | * Copyright (C) 2002 Ben Parnell |
5 | * |
6 | * This program is free software; you can redistribute it and/or modify |
7 | * it under the terms of the GNU General Public License as published by |
8 | * the Free Software Foundation; either version 2 of the License, or |
9 | * (at your option) any later version. |
10 | * |
11 | * This program is distributed in the hope that it will be useful, |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
14 | * GNU General Public License for more details. |
15 | * |
16 | * You should have received a copy of the GNU General Public License |
17 | * along with this program; if not, write to the Free Software |
18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
19 | */ |
20 | |
21 | #include <stdio.h> |
22 | #include <stdlib.h> |
23 | #include <string.h> |
24 | #include <time.h> |
25 | #include <unistd.h> |
26 | |
27 | #include <dpmi.h> |
28 | #include <sys/farptr.h> |
29 | #include <go32.h> |
30 | #include <pc.h> |
31 | |
32 | #include "dos.h" |
33 | #include "dos-joystick.h" |
34 | |
35 | #define JOY_A 1 |
36 | #define JOY_B 2 |
37 | #define JOY_SELECT 4 |
38 | #define JOY_START 8 |
39 | #define JOY_UP 0x10 |
40 | #define JOY_DOWN 0x20 |
41 | #define JOY_LEFT 0x40 |
42 | #define JOY_RIGHT 0x80 |
43 | |
44 | int joy=0; |
45 | int joyBMap[4]; |
46 | |
47 | static int32 joybuttons=0; |
48 | static uint32 joyx=0; |
49 | static uint32 joyy=0; |
50 | static uint32 joyxcenter; |
51 | static uint32 joyycenter; |
52 | |
53 | static void ConfigJoystick(void); |
54 | volatile int soundjoyer=0; |
55 | volatile int soundjoyeron=0; |
56 | |
57 | /* Crude method to detect joystick. */ |
58 | static int DetectJoystick(void) |
59 | { |
60 | uint8 b; |
61 | |
62 | outportb(0x201,0); |
63 | b=inportb(0x201); |
64 | sleep(1); |
65 | if((inportb(0x201)&3)==(b&3)) |
66 | return 0; |
67 | else |
68 | return 1; |
69 | } |
70 | |
71 | void UpdateJoyData(void) |
72 | { |
73 | uint32 xc,yc; |
74 | |
75 | |
76 | joybuttons=((inportb(0x201)&0xF0)^0xF0)>>4; |
77 | |
78 | xc=yc=0; |
79 | |
80 | { |
81 | outportb(0x201,0); |
82 | |
83 | for(;;) |
84 | { |
85 | uint8 b; |
86 | |
87 | b=inportb(0x201); |
88 | if(!(b&3)) |
89 | break; |
90 | if(b&1) xc++; |
91 | if(b&2) yc++; |
92 | } |
93 | } |
94 | |
95 | joyx=xc; |
96 | joyy=yc; |
97 | } |
98 | |
99 | uint32 GetJSOr(void) |
100 | { |
101 | int y; |
102 | unsigned long ret; |
103 | ret=0; |
104 | |
105 | if(!soundo) |
106 | UpdateJoyData(); |
107 | for(y=0;y<4;y++) |
108 | if(joybuttons&joyBMap[y]) ret|=(1<<y)<<((joy-1)<<3); |
109 | |
110 | if(joyx<=joyxcenter*.25) ret|=JOY_LEFT<<((joy-1)<<3); |
111 | else if(joyx>=joyxcenter*1.75) ret|=JOY_RIGHT<<((joy-1)<<3); |
112 | if(joyy<=joyycenter*.25) ret|=JOY_UP<<((joy-1)<<3); |
113 | else if(joyy>=joyycenter*1.75) ret|=JOY_DOWN<<((joy-1)<<3); |
114 | |
115 | return ret; |
116 | } |
117 | |
118 | int InitJoysticks(void) |
119 | { |
120 | if(!joy) return(0); |
121 | if(!DetectJoystick()) |
122 | { |
123 | printf("Joystick not detected!\n"); |
124 | joy=0; |
125 | return 0; |
126 | } |
127 | if(soundo) |
128 | { |
129 | soundjoyeron=1; |
130 | while(!soundjoyer); |
131 | } |
132 | else |
133 | UpdateJoyData(); |
134 | |
135 | joyxcenter=joyx; |
136 | joyycenter=joyy; |
137 | |
138 | if(!(joyBMap[0]|joyBMap[1]|joyBMap[2]|joyBMap[3])) |
139 | ConfigJoystick(); |
140 | return(1); |
141 | } |
142 | |
143 | static void BConfig(int b) |
144 | { |
145 | int c=0; |
146 | uint32 st=time(0); |
147 | |
148 | while(time(0)< (st+4) ) |
149 | { |
150 | if(!soundo) |
151 | UpdateJoyData(); |
152 | if(joybuttons) c=joybuttons; |
153 | else if(c && !joybuttons) |
154 | { |
155 | joyBMap[b]=c; |
156 | break; |
157 | } |
158 | |
159 | } |
160 | } |
161 | |
162 | void KillJoysticks(void) |
163 | { |
164 | |
165 | } |
166 | |
167 | static void ConfigJoystick(void) |
168 | { |
169 | static char *genb="** Press button for "; |
170 | |
171 | printf("\n\n Joystick button configuration:\n\n"); |
172 | printf(" Push and release the button to map to the virtual joystick.\n"); |
173 | printf(" If you do not wish to assign a button, wait a few seconds\n"); |
174 | printf(" and the configuration will continue.\n\n"); |
175 | printf(" Press enter to continue...\n"); |
176 | getchar(); |
177 | |
178 | printf("%s\"Select\".\n",genb); |
179 | BConfig(2); |
180 | |
181 | printf("%s\"Start\".\n",genb); |
182 | BConfig(3); |
183 | |
184 | printf("%s\"B\".\n",genb); |
185 | BConfig(1); |
186 | |
187 | printf("%s\"A\".\n",genb); |
188 | BConfig(0); |
189 | } |
190 | |