| 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 | |