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 <errno.h> |
23 | #include <unistd.h> |
24 | #include <fcntl.h> |
25 | #include <linux/joystick.h> |
26 | #include "main.h" |
27 | #include "lnx-joystick.h" |
28 | |
29 | int joy[4]={0,0,0,0}; |
30 | int joyBMap[4][4]; |
31 | |
32 | static int32 joybuttons[4]={0,0,0,0}; |
33 | static int32 joyx[4]={0,0,0,0}; |
34 | static int32 joyy[4]={0,0,0,0}; |
35 | |
36 | static void ConfigJoystick(int z); |
37 | static int fd[4]; |
38 | |
39 | #define JOY_A 1 |
40 | #define JOY_B 2 |
41 | #define JOY_SELECT 4 |
42 | #define JOY_START 8 |
43 | #define JOY_UP 0x10 |
44 | #define JOY_DOWN 0x20 |
45 | #define JOY_LEFT 0x40 |
46 | #define JOY_RIGHT 0x80 |
47 | |
48 | static void UpdateJoyData(int x) |
49 | { |
50 | struct js_event e; |
51 | |
52 | while(read(fd[x],&e,sizeof(struct js_event))==sizeof(struct js_event)) |
53 | { |
54 | e.type&=~JS_EVENT_INIT; |
55 | if(e.type==JS_EVENT_BUTTON) |
56 | { |
57 | if(e.value) |
58 | joybuttons[x]|=(1<<e.number); |
59 | else |
60 | joybuttons[x]&=~(1<<e.number); |
61 | } |
62 | else if(e.type==JS_EVENT_AXIS) |
63 | { |
64 | if(e.number==0) |
65 | joyx[x]=e.value; |
66 | else if(e.number==1) |
67 | joyy[x]=e.value; |
68 | } |
69 | } |
70 | } |
71 | |
72 | uint32 GetJSOr(void) |
73 | { |
74 | int x,y; |
75 | unsigned long ret; |
76 | ret=0; |
77 | |
78 | for(x=0;x<4;x++) |
79 | { |
80 | int *joym=joyBMap[x]; |
81 | |
82 | if(!joy[x]) continue; |
83 | UpdateJoyData(x); |
84 | for(y=0;y<4;y++) |
85 | if(joybuttons[x]&joym[y]) ret|=(1<<y)<<(x<<3); |
86 | if(joyx[x]<=-16383) ret|=JOY_LEFT<<(x<<3); |
87 | else if(joyx[x]>=16383) ret|=JOY_RIGHT<<(x<<3); |
88 | if(joyy[x]<=-16383) ret|=JOY_UP<<(x<<3); |
89 | else if(joyy[x]>=16383) ret|=JOY_DOWN<<(x<<3); |
90 | } |
91 | return ret; |
92 | } |
93 | |
94 | void KillJoysticks(void) |
95 | { |
96 | int x; |
97 | for(x=0;x<4;x++) |
98 | if(joy[x]) |
99 | close(fd[x]); |
100 | } |
101 | |
102 | int InitJoysticks(void) |
103 | { |
104 | char dbuf[64]; |
105 | int version; |
106 | int z; |
107 | |
108 | for(z=0;z<4;z++) |
109 | { |
110 | if(!joy[z]) continue; |
111 | sprintf(dbuf,"/dev/js%d",joy[z]-1); |
112 | if((fd[z]=open(dbuf,O_RDONLY|O_NONBLOCK))<0) |
113 | { |
114 | printf("Could not open %s.\n",dbuf); |
115 | joy[z]=0; |
116 | continue; |
117 | } |
118 | |
119 | if(ioctl(fd[z], JSIOCGVERSION, &version)==-1) |
120 | { |
121 | printf("Error using ioctl JSIOCGVERSION on %s.\n",dbuf); |
122 | joy[z]=0; |
123 | close(fd[z]); |
124 | continue; |
125 | } |
126 | |
127 | if(!(joyBMap[z][0]|joyBMap[z][1]|joyBMap[z][2]|joyBMap[z][3])) |
128 | ConfigJoystick(z); |
129 | } |
130 | |
131 | return(joy[0]|joy[1]|joy[2]|joy[3]); |
132 | } |
133 | |
134 | #define WNOINPUT(); for(;;){uint8 t; if(read(fileno(stdin),&t,1)==-1) \ |
135 | {break;}} |
136 | |
137 | static void BConfig(int z,int b) |
138 | { |
139 | WNOINPUT(); |
140 | for(;;) |
141 | { |
142 | uint8 t; |
143 | if(read(fileno(stdin),&t,1)==-1) |
144 | { |
145 | if(errno!=EAGAIN) break; |
146 | } |
147 | else |
148 | break; |
149 | |
150 | { |
151 | struct js_event e; |
152 | |
153 | while(read(fd[z],&e,sizeof(struct js_event))==sizeof(struct js_event)) |
154 | { |
155 | if(e.type==JS_EVENT_BUTTON) |
156 | { |
157 | if(!e.value) |
158 | { |
159 | joyBMap[z][b]=1<<e.number; |
160 | goto endsa; |
161 | } |
162 | } |
163 | } |
164 | } |
165 | |
166 | } |
167 | endsa: |
168 | WNOINPUT(); |
169 | } |
170 | |
171 | void ConfigJoystick(int z) |
172 | { |
173 | int sa; |
174 | static char *genb="** Press button for "; |
175 | |
176 | printf("\n\n Joystick button configuration:\n\n"); |
177 | printf(" Push the button to map to the virtual joystick.\n"); |
178 | printf(" If you do not wish to assign a button, press Enter to skip\n"); |
179 | printf(" that button.\n\n"); |
180 | printf(" Press enter to continue...\n"); |
181 | getchar(); |
182 | printf("**** Configuring joystick %d ****\n\n",z+1); |
183 | |
184 | sa=fcntl(fileno(stdin),F_GETFL); |
185 | fcntl(fileno(stdin),F_SETFL,O_NONBLOCK); |
186 | |
187 | printf("%s\"Select\".\n",genb); |
188 | BConfig(z,2); |
189 | |
190 | printf("%s\"Start\".\n",genb); |
191 | BConfig(z,3); |
192 | |
193 | printf("%s\"B\".\n",genb); |
194 | BConfig(z,1); |
195 | |
196 | printf("%s\"A\".\n",genb); |
197 | BConfig(z,0); |
198 | |
199 | fcntl(fileno(stdin),F_SETFL,sa); |
200 | } |
201 | |