Mercurial > sdl-ios-xcode
annotate src/joystick/linux/SDL_sysjoystick.c @ 4093:7ea10b80eda3 SDL-1.2
Fixed bugs #471 and #480
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Tue, 21 Aug 2007 06:52:33 +0000 |
| parents | 746aa4852f87 |
| children | fc27f3e8eee4 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
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3 Copyright (C) 1997-2006 Sam Lantinga |
| 0 | 4 |
| 5 This library is free software; you can redistribute it and/or | |
|
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6 modify it under the terms of the GNU Lesser General Public |
| 0 | 7 License as published by the Free Software Foundation; either |
|
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8 version 2.1 of the License, or (at your option) any later version. |
| 0 | 9 |
| 10 This library is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
|
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13 Lesser General Public License for more details. |
| 0 | 14 |
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15 You should have received a copy of the GNU Lesser General Public |
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16 License along with this library; if not, write to the Free Software |
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 0 | 18 |
| 19 Sam Lantinga | |
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20 slouken@libsdl.org |
| 0 | 21 */ |
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22 #include "SDL_config.h" |
| 0 | 23 |
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24 #ifdef SDL_JOYSTICK_LINUX |
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25 |
| 0 | 26 /* This is the system specific header for the SDL joystick API */ |
| 27 | |
| 28 #include <sys/stat.h> | |
| 29 #include <unistd.h> | |
| 30 #include <fcntl.h> | |
| 31 #include <sys/ioctl.h> | |
| 32 #include <limits.h> /* For the definition of PATH_MAX */ | |
| 33 #include <linux/joystick.h> | |
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34 #if SDL_INPUT_LINUXEV |
| 0 | 35 #include <linux/input.h> |
| 36 #endif | |
| 37 | |
| 38 #include "SDL_joystick.h" | |
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39 #include "../SDL_sysjoystick.h" |
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40 #include "../SDL_joystick_c.h" |
| 0 | 41 |
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42 /* Special joystick configurations */ |
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43 static struct { |
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44 const char *name; |
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45 int naxes; |
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46 int nhats; |
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47 int nballs; |
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48 } special_joysticks[] = { |
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49 { "MadCatz Panther XL", 3, 2, 1 }, /* We don't handle rudder (axis 8) */ |
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50 { "SideWinder Precision Pro", 4, 1, 0 }, |
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51 { "SideWinder 3D Pro", 4, 1, 0 }, |
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52 { "Microsoft SideWinder 3D Pro", 4, 1, 0 }, |
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53 { "Microsoft SideWinder Precision Pro", 4, 1, 0 }, |
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54 { "Microsoft SideWinder Dual Strike USB version 1.0", 2, 1, 0 }, |
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55 { "WingMan Interceptor", 3, 3, 0 }, |
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56 { "WingMan Extreme Digital 3D", 4, 1, 0 }, |
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57 { "Microsoft SideWinder Precision 2 Joystick", 4, 1, 0 }, |
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58 { "Logitech Inc. WingMan Extreme Digital 3D", 4, 1, 0 }, |
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59 { "Saitek Saitek X45", 6, 1, 0 } |
| 0 | 60 }; |
| 61 | |
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62 #ifndef NO_LOGICAL_JOYSTICKS |
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63 |
| 1551 | 64 /* |
| 65 Some USB HIDs show up as a single joystick even though they actually | |
| 66 control 2 or more joysticks. | |
| 67 */ | |
| 68 /* | |
| 69 This code handles the MP-8800 (Quad) and MP-8866 (Dual), which can | |
| 70 be identified by their transparent blue design. It's quite trivial | |
| 71 to add other joysticks with similar quirky behavior. | |
| 72 -id | |
| 73 */ | |
| 74 | |
| 75 struct joystick_logical_mapping { | |
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76 int njoy; |
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77 int nthing; |
| 1551 | 78 }; |
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79 |
| 1551 | 80 /* |
| 81 {logical joy, logical axis}, | |
| 82 {logical joy, logical hat}, | |
| 83 {logical joy, logical ball}, | |
| 84 {logical joy, logical button} | |
| 85 */ | |
| 86 | |
| 87 static struct joystick_logical_mapping mp88xx_1_logical_axismap[] = { | |
| 88 {0,0},{0,1},{0,2},{0,3},{0,4},{0,5} | |
| 89 }; | |
| 90 static struct joystick_logical_mapping mp88xx_1_logical_buttonmap[] = { | |
| 91 {0,0},{0,1},{0,2},{0,3},{0,4},{0,5},{0,6},{0,7},{0,8},{0,9},{0,10},{0,11} | |
| 92 }; | |
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93 |
| 1551 | 94 static struct joystick_logical_mapping mp88xx_2_logical_axismap[] = { |
| 95 {0,0},{0,1},{0,2},{1,0},{1,1},{0,3}, | |
| 96 {1,2},{1,3},{0,4},{0,5},{1,4},{1,5} | |
| 97 }; | |
| 98 static struct joystick_logical_mapping mp88xx_2_logical_buttonmap[] = { | |
| 99 {0,0},{0,1},{0,2},{0,3},{0,4},{0,5},{0,6},{0,7},{0,8},{0,9},{0,10},{0,11}, | |
| 100 {1,0},{1,1},{1,2},{1,3},{1,4},{1,5},{1,6},{1,7},{1,8},{1,9},{1,10},{1,11} | |
| 101 }; | |
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102 |
| 1551 | 103 static struct joystick_logical_mapping mp88xx_3_logical_axismap[] = { |
| 104 {0,0},{0,1},{0,2},{1,0},{1,1},{0,3}, | |
| 105 {1,2},{1,3},{2,0},{2,1},{2,2},{2,3}, | |
| 106 {0,4},{0,5},{1,4},{1,5},{2,4},{2,5} | |
| 107 }; | |
| 108 static struct joystick_logical_mapping mp88xx_3_logical_buttonmap[] = { | |
| 109 {0,0},{0,1},{0,2},{0,3},{0,4},{0,5},{0,6},{0,7},{0,8},{0,9},{0,10},{0,11}, | |
| 110 {1,0},{1,1},{1,2},{1,3},{1,4},{1,5},{1,6},{1,7},{1,8},{1,9},{1,10},{1,11}, | |
| 111 {2,0},{2,1},{2,2},{2,3},{2,4},{2,5},{2,6},{2,7},{2,8},{2,9},{2,10},{2,11} | |
| 112 }; | |
| 113 | |
| 114 static struct joystick_logical_mapping mp88xx_4_logical_axismap[] = { | |
| 115 {0,0},{0,1},{0,2},{1,0},{1,1},{0,3}, | |
| 116 {1,2},{1,3},{2,0},{2,1},{2,2},{2,3}, | |
| 117 {3,0},{3,1},{3,2},{3,3},{0,4},{0,5}, | |
| 118 {1,4},{1,5},{2,4},{2,5},{3,4},{3,5} | |
| 119 }; | |
| 120 static struct joystick_logical_mapping mp88xx_4_logical_buttonmap[] = { | |
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121 {0,0},{0,1},{0,2},{0,3},{0,4},{0,5},{0,6},{0,7},{0,8},{0,9},{0,10},{0,11}, |
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122 {1,0},{1,1},{1,2},{1,3},{1,4},{1,5},{1,6},{1,7},{1,8},{1,9},{1,10},{1,11}, |
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123 {2,0},{2,1},{2,2},{2,3},{2,4},{2,5},{2,6},{2,7},{2,8},{2,9},{2,10},{2,11}, |
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124 {3,0},{3,1},{3,2},{3,3},{3,4},{3,5},{3,6},{3,7},{3,8},{3,9},{3,10},{3,11} |
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125 }; |
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126 |
| 1551 | 127 struct joystick_logical_layout { |
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128 int naxes; |
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129 int nhats; |
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130 int nballs; |
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131 int nbuttons; |
| 1551 | 132 }; |
| 133 | |
| 134 static struct joystick_logical_layout mp88xx_1_logical_layout[] = { | |
| 135 {6, 0, 0, 12} | |
| 136 }; | |
| 137 static struct joystick_logical_layout mp88xx_2_logical_layout[] = { | |
| 138 {6, 0, 0, 12}, | |
| 139 {6, 0, 0, 12} | |
| 140 }; | |
| 141 static struct joystick_logical_layout mp88xx_3_logical_layout[] = { | |
| 142 {6, 0, 0, 12}, | |
| 143 {6, 0, 0, 12}, | |
| 144 {6, 0, 0, 12} | |
| 145 }; | |
| 146 static struct joystick_logical_layout mp88xx_4_logical_layout[] = { | |
| 147 {6, 0, 0, 12}, | |
| 148 {6, 0, 0, 12}, | |
| 149 {6, 0, 0, 12}, | |
| 150 {6, 0, 0, 12} | |
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151 }; |
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152 |
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153 /* |
| 1551 | 154 This array sets up a means of mapping a single physical joystick to |
| 155 multiple logical joysticks. (djm) | |
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156 |
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157 njoys |
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158 the number of logical joysticks |
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159 |
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160 layouts |
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161 an array of layout structures, one to describe each logical joystick |
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162 |
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163 axes, hats, balls, buttons |
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164 arrays that map a physical thingy to a logical thingy |
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165 */ |
| 1551 | 166 struct joystick_logicalmap { |
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167 const char *name; |
| 1551 | 168 int nbuttons; |
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169 int njoys; |
| 1551 | 170 struct joystick_logical_layout *layout; |
| 171 struct joystick_logical_mapping *axismap; | |
| 172 struct joystick_logical_mapping *hatmap; | |
| 173 struct joystick_logical_mapping *ballmap; | |
| 174 struct joystick_logical_mapping *buttonmap; | |
| 175 }; | |
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176 |
| 1551 | 177 static struct joystick_logicalmap joystick_logicalmap[] = { |
| 178 { | |
| 179 "WiseGroup.,Ltd MP-8866 Dual USB Joypad", | |
| 180 12, | |
| 181 1, | |
| 182 mp88xx_1_logical_layout, | |
| 183 mp88xx_1_logical_axismap, | |
| 184 NULL, | |
| 185 NULL, | |
| 186 mp88xx_1_logical_buttonmap | |
| 187 }, | |
| 188 { | |
| 189 "WiseGroup.,Ltd MP-8866 Dual USB Joypad", | |
| 190 24, | |
| 191 2, | |
| 192 mp88xx_2_logical_layout, | |
| 193 mp88xx_2_logical_axismap, | |
| 194 NULL, | |
| 195 NULL, | |
| 196 mp88xx_2_logical_buttonmap | |
| 197 }, | |
| 198 { | |
| 199 "WiseGroup.,Ltd MP-8800 Quad USB Joypad", | |
| 200 12, | |
| 201 1, | |
| 202 mp88xx_1_logical_layout, | |
| 203 mp88xx_1_logical_axismap, | |
| 204 NULL, | |
| 205 NULL, | |
| 206 mp88xx_1_logical_buttonmap | |
| 207 }, | |
| 208 { | |
| 209 "WiseGroup.,Ltd MP-8800 Quad USB Joypad", | |
| 210 24, | |
| 211 2, | |
| 212 mp88xx_2_logical_layout, | |
| 213 mp88xx_2_logical_axismap, | |
| 214 NULL, | |
| 215 NULL, | |
| 216 mp88xx_2_logical_buttonmap | |
| 217 }, | |
| 218 { | |
| 219 "WiseGroup.,Ltd MP-8800 Quad USB Joypad", | |
| 220 36, | |
| 221 3, | |
| 222 mp88xx_3_logical_layout, | |
| 223 mp88xx_3_logical_axismap, | |
| 224 NULL, | |
| 225 NULL, | |
| 226 mp88xx_3_logical_buttonmap | |
| 227 }, | |
| 228 { | |
| 229 "WiseGroup.,Ltd MP-8800 Quad USB Joypad", | |
| 230 48, | |
| 231 4, | |
| 232 mp88xx_4_logical_layout, | |
| 233 mp88xx_4_logical_axismap, | |
| 234 NULL, | |
| 235 NULL, | |
| 236 mp88xx_4_logical_buttonmap | |
| 237 } | |
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238 }; |
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239 |
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240 /* find the head of a linked list, given a point in it |
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241 */ |
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242 #define SDL_joylist_head(i, start)\ |
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243 for(i = start; SDL_joylist[i].fname == NULL;) i = SDL_joylist[i].prev; |
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244 |
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245 #define SDL_logical_joydecl(d) d |
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246 |
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247 |
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248 #else |
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249 |
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250 #define SDL_logical_joydecl(d) |
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251 |
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252 #endif /* USE_LOGICAL_JOYSTICKS */ |
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253 |
| 0 | 254 /* The maximum number of joysticks we'll detect */ |
| 255 #define MAX_JOYSTICKS 32 | |
| 256 | |
| 257 /* A list of available joysticks */ | |
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258 static struct |
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259 { |
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260 char* fname; |
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261 #ifndef NO_LOGICAL_JOYSTICKS |
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262 SDL_Joystick* joy; |
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263 struct joystick_logicalmap* map; |
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264 int prev; |
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265 int next; |
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266 int logicalno; |
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267 #endif /* USE_LOGICAL_JOYSTICKS */ |
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268 } SDL_joylist[MAX_JOYSTICKS]; |
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269 |
| 0 | 270 |
| 271 /* The private structure used to keep track of a joystick */ | |
| 272 struct joystick_hwdata { | |
| 273 int fd; | |
| 274 /* The current linux joystick driver maps hats to two axes */ | |
| 275 struct hwdata_hat { | |
| 276 int axis[2]; | |
| 277 } *hats; | |
| 278 /* The current linux joystick driver maps balls to two axes */ | |
| 279 struct hwdata_ball { | |
| 280 int axis[2]; | |
| 281 } *balls; | |
| 282 | |
| 283 /* Support for the Linux 2.4 unified input interface */ | |
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284 #if SDL_INPUT_LINUXEV |
| 0 | 285 SDL_bool is_hid; |
| 286 Uint8 key_map[KEY_MAX-BTN_MISC]; | |
| 287 Uint8 abs_map[ABS_MAX]; | |
| 288 struct axis_correct { | |
| 289 int used; | |
| 290 int coef[3]; | |
| 291 } abs_correct[ABS_MAX]; | |
| 292 #endif | |
| 293 }; | |
| 294 | |
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295 |
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296 #ifndef NO_LOGICAL_JOYSTICKS |
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297 |
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298 static int CountLogicalJoysticks(int max) |
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299 { |
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300 register int i, j, k, ret, prev; |
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301 const char* name; |
| 1551 | 302 int nbuttons, fd; |
| 303 unsigned char n; | |
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304 |
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305 ret = 0; |
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306 |
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307 for(i = 0; i < max; i++) { |
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308 name = SDL_SYS_JoystickName(i); |
| 1551 | 309 |
| 310 fd = open(SDL_joylist[i].fname, O_RDONLY, 0); | |
| 311 if ( fd >= 0 ) { | |
| 312 if ( ioctl(fd, JSIOCGBUTTONS, &n) < 0 ) { | |
| 313 nbuttons = -1; | |
| 314 } else { | |
| 315 nbuttons = n; | |
| 316 } | |
| 317 close(fd); | |
| 318 } | |
| 319 else { | |
| 320 nbuttons=-1; | |
| 321 } | |
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322 |
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323 if (name) { |
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324 for(j = 0; j < SDL_arraysize(joystick_logicalmap); j++) { |
| 1551 | 325 if (!SDL_strcmp(name, joystick_logicalmap[j].name) && (nbuttons==-1 || nbuttons==joystick_logicalmap[j].nbuttons)) { |
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326 prev = i; |
| 1551 | 327 SDL_joylist[prev].map = &(joystick_logicalmap[j]); |
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328 |
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329 for(k = 1; k < joystick_logicalmap[j].njoys; k++) { |
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330 SDL_joylist[prev].next = max + ret; |
| 1551 | 331 SDL_joylist[max+ret].prev = prev; |
| 332 | |
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333 prev = max + ret; |
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334 SDL_joylist[prev].logicalno = k; |
| 1551 | 335 SDL_joylist[prev].map = &(joystick_logicalmap[j]); |
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336 ret++; |
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337 } |
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338 |
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339 break; |
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340 } |
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341 } |
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342 } |
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343 } |
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344 |
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345 return ret; |
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346 } |
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347 |
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348 static void LogicalSuffix(int logicalno, char* namebuf, int len) |
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349 { |
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350 register int slen; |
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351 const static char suffixs[] = |
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352 "01020304050607080910111213141516171819" |
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353 "20212223242526272829303132"; |
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354 const char* suffix; |
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355 slen = SDL_strlen(namebuf); |
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356 suffix = NULL; |
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357 |
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358 if (logicalno*2<sizeof(suffixs)) |
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359 suffix = suffixs + (logicalno*2); |
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360 |
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361 if (slen + 4 < len && suffix) { |
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362 namebuf[slen++] = ' '; |
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363 namebuf[slen++] = '#'; |
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364 namebuf[slen++] = suffix[0]; |
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365 namebuf[slen++] = suffix[1]; |
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366 namebuf[slen++] = 0; |
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367 } |
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368 } |
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369 |
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370 #endif /* USE_LOGICAL_JOYSTICKS */ |
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371 |
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372 #if SDL_INPUT_LINUXEV |
| 0 | 373 #define test_bit(nr, addr) \ |
| 374 (((1UL << ((nr) & 31)) & (((const unsigned int *) addr)[(nr) >> 5])) != 0) | |
| 375 | |
| 376 static int EV_IsJoystick(int fd) | |
| 377 { | |
| 378 unsigned long evbit[40]; | |
| 379 unsigned long keybit[40]; | |
| 380 unsigned long absbit[40]; | |
| 381 | |
| 382 if ( (ioctl(fd, EVIOCGBIT(0, sizeof(evbit)), evbit) < 0) || | |
| 383 (ioctl(fd, EVIOCGBIT(EV_KEY, sizeof(keybit)), keybit) < 0) || | |
| 384 (ioctl(fd, EVIOCGBIT(EV_ABS, sizeof(absbit)), absbit) < 0) ) { | |
| 385 return(0); | |
| 386 } | |
| 387 if (!(test_bit(EV_KEY, evbit) && test_bit(EV_ABS, evbit) && | |
| 388 test_bit(ABS_X, absbit) && test_bit(ABS_Y, absbit) && | |
| 389 (test_bit(BTN_TRIGGER, keybit) || test_bit(BTN_A, keybit) || test_bit(BTN_1, keybit)))) return 0; | |
| 390 return(1); | |
| 391 } | |
| 392 | |
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393 #endif /* SDL_INPUT_LINUXEV */ |
| 0 | 394 |
| 395 /* Function to scan the system for joysticks */ | |
| 396 int SDL_SYS_JoystickInit(void) | |
| 397 { | |
| 398 /* The base path of the joystick devices */ | |
|
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399 const char *joydev_pattern[] = { |
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400 #if SDL_INPUT_LINUXEV |
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401 "/dev/input/event%d", |
|
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402 #endif |
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403 "/dev/input/js%d", |
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404 "/dev/js%d" |
| 0 | 405 }; |
| 406 int numjoysticks; | |
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407 int i, j; |
| 0 | 408 int fd; |
| 409 char path[PATH_MAX]; | |
| 410 dev_t dev_nums[MAX_JOYSTICKS]; /* major/minor device numbers */ | |
| 411 struct stat sb; | |
| 412 int n, duplicate; | |
| 413 | |
| 414 numjoysticks = 0; | |
| 415 | |
| 416 /* First see if the user specified a joystick to use */ | |
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417 if ( SDL_getenv("SDL_JOYSTICK_DEVICE") != NULL ) { |
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418 SDL_strlcpy(path, SDL_getenv("SDL_JOYSTICK_DEVICE"), sizeof(path)); |
| 0 | 419 if ( stat(path, &sb) == 0 ) { |
| 420 fd = open(path, O_RDONLY, 0); | |
| 421 if ( fd >= 0 ) { | |
| 422 /* Assume the user knows what they're doing. */ | |
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423 SDL_joylist[numjoysticks].fname = SDL_strdup(path); |
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424 if ( SDL_joylist[numjoysticks].fname ) { |
| 0 | 425 dev_nums[numjoysticks] = sb.st_rdev; |
| 426 ++numjoysticks; | |
| 427 } | |
| 428 close(fd); | |
| 429 } | |
| 430 } | |
| 431 } | |
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432 |
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433 for ( i=0; i<SDL_arraysize(joydev_pattern); ++i ) { |
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434 for ( j=0; j < MAX_JOYSTICKS; ++j ) { |
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435 SDL_snprintf(path, SDL_arraysize(path), joydev_pattern[i], j); |
| 0 | 436 |
| 437 /* rcg06302000 replaced access(F_OK) call with stat(). | |
| 438 * stat() will fail if the file doesn't exist, so it's | |
| 439 * equivalent behaviour. | |
| 440 */ | |
| 441 if ( stat(path, &sb) == 0 ) { | |
| 442 /* Check to make sure it's not already in list. | |
| 443 * This happens when we see a stick via symlink. | |
| 444 */ | |
| 445 duplicate = 0; | |
| 446 for (n=0; (n<numjoysticks) && !duplicate; ++n) { | |
| 447 if ( sb.st_rdev == dev_nums[n] ) { | |
| 448 duplicate = 1; | |
| 449 } | |
| 450 } | |
| 451 if (duplicate) { | |
| 452 continue; | |
| 453 } | |
| 454 | |
| 455 fd = open(path, O_RDONLY, 0); | |
| 456 if ( fd < 0 ) { | |
| 457 continue; | |
| 458 } | |
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459 #if SDL_INPUT_LINUXEV |
| 0 | 460 #ifdef DEBUG_INPUT_EVENTS |
| 461 printf("Checking %s\n", path); | |
| 462 #endif | |
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463 if ( (i == 0) && ! EV_IsJoystick(fd) ) { |
| 0 | 464 close(fd); |
| 465 continue; | |
| 466 } | |
| 467 #endif | |
| 468 close(fd); | |
| 469 | |
| 470 /* We're fine, add this joystick */ | |
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471 SDL_joylist[numjoysticks].fname = SDL_strdup(path); |
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472 if ( SDL_joylist[numjoysticks].fname ) { |
| 0 | 473 dev_nums[numjoysticks] = sb.st_rdev; |
| 474 ++numjoysticks; | |
| 475 } | |
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476 } else |
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477 break; |
| 0 | 478 } |
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479 |
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480 #if SDL_INPUT_LINUXEV |
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481 /* This is a special case... |
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482 If the event devices are valid then the joystick devices |
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483 will be duplicates but without extra information about their |
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484 hats or balls. Unfortunately, the event devices can't |
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485 currently be calibrated, so it's a win-lose situation. |
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486 So : /dev/input/eventX = /dev/input/jsY = /dev/jsY |
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487 */ |
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488 if ( (i == 0) && (numjoysticks > 0) ) |
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489 break; |
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490 #endif |
| 0 | 491 } |
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492 #ifndef NO_LOGICAL_JOYSTICKS |
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493 numjoysticks += CountLogicalJoysticks(numjoysticks); |
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494 #endif |
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495 |
| 0 | 496 return(numjoysticks); |
| 497 } | |
| 498 | |
| 499 /* Function to get the device-dependent name of a joystick */ | |
| 500 const char *SDL_SYS_JoystickName(int index) | |
| 501 { | |
| 502 int fd; | |
| 503 static char namebuf[128]; | |
| 504 char *name; | |
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505 SDL_logical_joydecl(int oindex = index); |
| 0 | 506 |
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507 #ifndef NO_LOGICAL_JOYSTICKS |
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508 SDL_joylist_head(index, index); |
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509 #endif |
| 0 | 510 name = NULL; |
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511 fd = open(SDL_joylist[index].fname, O_RDONLY, 0); |
| 0 | 512 if ( fd >= 0 ) { |
| 513 if ( | |
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514 #if SDL_INPUT_LINUXEV |
| 0 | 515 (ioctl(fd, EVIOCGNAME(sizeof(namebuf)), namebuf) <= 0) && |
| 516 #endif | |
| 517 (ioctl(fd, JSIOCGNAME(sizeof(namebuf)), namebuf) <= 0) ) { | |
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518 name = SDL_joylist[index].fname; |
| 0 | 519 } else { |
| 520 name = namebuf; | |
| 521 } | |
| 522 close(fd); | |
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523 |
| 1551 | 524 |
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525 #ifndef NO_LOGICAL_JOYSTICKS |
| 1551 | 526 if (SDL_joylist[oindex].prev || SDL_joylist[oindex].next || index!=oindex) |
| 527 { | |
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528 LogicalSuffix(SDL_joylist[oindex].logicalno, namebuf, 128); |
| 1551 | 529 } |
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530 #endif |
| 0 | 531 } |
| 532 return name; | |
| 533 } | |
| 534 | |
| 535 static int allocate_hatdata(SDL_Joystick *joystick) | |
| 536 { | |
| 537 int i; | |
| 538 | |
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539 joystick->hwdata->hats = (struct hwdata_hat *)SDL_malloc( |
| 0 | 540 joystick->nhats * sizeof(struct hwdata_hat)); |
| 541 if ( joystick->hwdata->hats == NULL ) { | |
| 542 return(-1); | |
| 543 } | |
| 544 for ( i=0; i<joystick->nhats; ++i ) { | |
| 545 joystick->hwdata->hats[i].axis[0] = 1; | |
| 546 joystick->hwdata->hats[i].axis[1] = 1; | |
| 547 } | |
| 548 return(0); | |
| 549 } | |
| 550 | |
| 551 static int allocate_balldata(SDL_Joystick *joystick) | |
| 552 { | |
| 553 int i; | |
| 554 | |
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555 joystick->hwdata->balls = (struct hwdata_ball *)SDL_malloc( |
| 0 | 556 joystick->nballs * sizeof(struct hwdata_ball)); |
| 557 if ( joystick->hwdata->balls == NULL ) { | |
| 558 return(-1); | |
| 559 } | |
| 560 for ( i=0; i<joystick->nballs; ++i ) { | |
| 561 joystick->hwdata->balls[i].axis[0] = 0; | |
| 562 joystick->hwdata->balls[i].axis[1] = 0; | |
| 563 } | |
| 564 return(0); | |
| 565 } | |
| 566 | |
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567 static SDL_bool JS_ConfigJoystick(SDL_Joystick *joystick, int fd) |
| 0 | 568 { |
| 569 SDL_bool handled; | |
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570 unsigned char n; |
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571 int old_axes, tmp_naxes, tmp_nhats, tmp_nballs; |
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572 const char *name; |
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573 char *env, env_name[128]; |
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574 int i; |
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575 |
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576 handled = SDL_FALSE; |
| 0 | 577 |
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578 /* Default joystick device settings */ |
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579 if ( ioctl(fd, JSIOCGAXES, &n) < 0 ) { |
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580 joystick->naxes = 2; |
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581 } else { |
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582 joystick->naxes = n; |
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583 } |
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584 if ( ioctl(fd, JSIOCGBUTTONS, &n) < 0 ) { |
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585 joystick->nbuttons = 2; |
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586 } else { |
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587 joystick->nbuttons = n; |
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588 } |
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589 |
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590 name = SDL_SYS_JoystickName(joystick->index); |
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591 old_axes = joystick->naxes; |
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592 |
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593 /* Generic analog joystick support */ |
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594 if ( SDL_strstr(name, "Analog") == name && SDL_strstr(name, "-hat") ) { |
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595 if ( SDL_sscanf(name,"Analog %d-axis %*d-button %d-hat", |
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596 &tmp_naxes, &tmp_nhats) == 2 ) { |
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597 |
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598 joystick->naxes = tmp_naxes; |
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599 joystick->nhats = tmp_nhats; |
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600 |
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601 handled = SDL_TRUE; |
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602 } |
| 0 | 603 } |
|
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604 |
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605 /* Special joystick support */ |
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606 for ( i=0; i < SDL_arraysize(special_joysticks); ++i ) { |
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607 if ( SDL_strcmp(name, special_joysticks[i].name) == 0 ) { |
|
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608 |
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609 joystick->naxes = special_joysticks[i].naxes; |
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610 joystick->nhats = special_joysticks[i].nhats; |
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611 joystick->nballs = special_joysticks[i].nballs; |
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612 |
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613 handled = SDL_TRUE; |
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614 break; |
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615 } |
| 0 | 616 } |
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617 |
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618 /* User environment joystick support */ |
|
1336
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619 if ( (env = SDL_getenv("SDL_LINUX_JOYSTICK")) ) { |
|
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620 *env_name = '\0'; |
|
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621 if ( *env == '\'' && SDL_sscanf(env, "'%[^']s'", env_name) == 1 ) |
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622 env += SDL_strlen(env_name)+2; |
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623 else if ( SDL_sscanf(env, "%s", env_name) == 1 ) |
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624 env += SDL_strlen(env_name); |
|
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625 |
|
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626 if ( SDL_strcmp(name, env_name) == 0 ) { |
| 0 | 627 |
|
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628 if ( SDL_sscanf(env, "%d %d %d", &tmp_naxes, &tmp_nhats, |
|
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|
629 &tmp_nballs) == 3 ) { |
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630 |
|
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631 joystick->naxes = tmp_naxes; |
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632 joystick->nhats = tmp_nhats; |
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633 joystick->nballs = tmp_nballs; |
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634 |
|
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635 handled = SDL_TRUE; |
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636 } |
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637 } |
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638 } |
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639 |
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|
640 /* Remap hats and balls */ |
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641 if (handled) { |
| 0 | 642 if ( joystick->nhats > 0 ) { |
|
589
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643 if ( allocate_hatdata(joystick) < 0 ) { |
|
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644 joystick->nhats = 0; |
| 0 | 645 } |
| 646 } | |
| 647 if ( joystick->nballs > 0 ) { | |
| 648 if ( allocate_balldata(joystick) < 0 ) { | |
| 649 joystick->nballs = 0; | |
| 650 } | |
| 651 } | |
| 652 } | |
|
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653 |
| 0 | 654 return(handled); |
| 655 } | |
| 656 | |
|
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657 #if SDL_INPUT_LINUXEV |
| 0 | 658 |
| 659 static SDL_bool EV_ConfigJoystick(SDL_Joystick *joystick, int fd) | |
| 660 { | |
| 871 | 661 int i, t; |
| 0 | 662 unsigned long keybit[40]; |
| 663 unsigned long absbit[40]; | |
| 664 unsigned long relbit[40]; | |
| 665 | |
| 666 /* See if this device uses the new unified event API */ | |
| 667 if ( (ioctl(fd, EVIOCGBIT(EV_KEY, sizeof(keybit)), keybit) >= 0) && | |
| 668 (ioctl(fd, EVIOCGBIT(EV_ABS, sizeof(absbit)), absbit) >= 0) && | |
| 669 (ioctl(fd, EVIOCGBIT(EV_REL, sizeof(relbit)), relbit) >= 0) ) { | |
| 670 joystick->hwdata->is_hid = SDL_TRUE; | |
| 671 | |
| 672 /* Get the number of buttons, axes, and other thingamajigs */ | |
| 673 for ( i=BTN_JOYSTICK; i < KEY_MAX; ++i ) { | |
| 674 if ( test_bit(i, keybit) ) { | |
| 675 #ifdef DEBUG_INPUT_EVENTS | |
| 676 printf("Joystick has button: 0x%x\n", i); | |
| 677 #endif | |
| 678 joystick->hwdata->key_map[i-BTN_MISC] = | |
| 679 joystick->nbuttons; | |
| 680 ++joystick->nbuttons; | |
| 681 } | |
| 682 } | |
| 683 for ( i=BTN_MISC; i < BTN_JOYSTICK; ++i ) { | |
| 684 if ( test_bit(i, keybit) ) { | |
| 685 #ifdef DEBUG_INPUT_EVENTS | |
| 686 printf("Joystick has button: 0x%x\n", i); | |
| 687 #endif | |
| 688 joystick->hwdata->key_map[i-BTN_MISC] = | |
| 689 joystick->nbuttons; | |
| 690 ++joystick->nbuttons; | |
| 691 } | |
| 692 } | |
| 693 for ( i=0; i<ABS_MAX; ++i ) { | |
| 694 /* Skip hats */ | |
| 695 if ( i == ABS_HAT0X ) { | |
| 696 i = ABS_HAT3Y; | |
| 697 continue; | |
| 698 } | |
| 699 if ( test_bit(i, absbit) ) { | |
| 700 int values[5]; | |
| 701 | |
|
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702 if ( ioctl(fd, EVIOCGABS(i), values) < 0 ) |
|
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703 continue; |
| 0 | 704 #ifdef DEBUG_INPUT_EVENTS |
| 705 printf("Joystick has absolute axis: %x\n", i); | |
| 706 printf("Values = { %d, %d, %d, %d, %d }\n", | |
| 707 values[0], values[1], | |
| 708 values[2], values[3], values[4]); | |
| 709 #endif /* DEBUG_INPUT_EVENTS */ | |
| 710 joystick->hwdata->abs_map[i] = joystick->naxes; | |
| 711 if ( values[1] == values[2] ) { | |
| 712 joystick->hwdata->abs_correct[i].used = 0; | |
| 713 } else { | |
| 714 joystick->hwdata->abs_correct[i].used = 1; | |
|
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715 joystick->hwdata->abs_correct[i].coef[0] = |
|
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|
716 (values[2] + values[1]) / 2 - values[4]; |
|
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|
717 joystick->hwdata->abs_correct[i].coef[1] = |
|
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|
718 (values[2] + values[1]) / 2 + values[4]; |
| 871 | 719 t = ((values[2] - values[1]) / 2 - 2 * values[4]); |
| 720 if ( t != 0 ) { | |
| 721 joystick->hwdata->abs_correct[i].coef[2] = (1 << 29) / t; | |
|
872
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|
722 } else { |
|
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723 joystick->hwdata->abs_correct[i].coef[2] = 0; |
| 871 | 724 } |
| 0 | 725 } |
| 726 ++joystick->naxes; | |
| 727 } | |
| 728 } | |
| 729 for ( i=ABS_HAT0X; i <= ABS_HAT3Y; i += 2 ) { | |
| 730 if ( test_bit(i, absbit) || test_bit(i+1, absbit) ) { | |
| 731 #ifdef DEBUG_INPUT_EVENTS | |
| 732 printf("Joystick has hat %d\n",(i-ABS_HAT0X)/2); | |
| 733 #endif | |
| 734 ++joystick->nhats; | |
| 735 } | |
| 736 } | |
| 737 if ( test_bit(REL_X, relbit) || test_bit(REL_Y, relbit) ) { | |
| 738 ++joystick->nballs; | |
| 739 } | |
| 740 | |
| 741 /* Allocate data to keep track of these thingamajigs */ | |
| 742 if ( joystick->nhats > 0 ) { | |
| 743 if ( allocate_hatdata(joystick) < 0 ) { | |
| 744 joystick->nhats = 0; | |
| 745 } | |
| 746 } | |
| 747 if ( joystick->nballs > 0 ) { | |
| 748 if ( allocate_balldata(joystick) < 0 ) { | |
| 749 joystick->nballs = 0; | |
| 750 } | |
| 751 } | |
| 752 } | |
| 753 return(joystick->hwdata->is_hid); | |
| 754 } | |
| 755 | |
|
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756 #endif /* SDL_INPUT_LINUXEV */ |
| 0 | 757 |
|
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|
758 #ifndef NO_LOGICAL_JOYSTICKS |
|
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|
759 static void ConfigLogicalJoystick(SDL_Joystick *joystick) |
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760 { |
|
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761 struct joystick_logical_layout* layout; |
|
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|
762 |
| 1551 | 763 layout = SDL_joylist[joystick->index].map->layout + |
|
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|
764 SDL_joylist[joystick->index].logicalno; |
|
dc29e5907694
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|
765 |
|
dc29e5907694
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|
766 joystick->nbuttons = layout->nbuttons; |
|
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|
767 joystick->nhats = layout->nhats; |
|
dc29e5907694
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|
768 joystick->naxes = layout->naxes; |
|
dc29e5907694
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diff
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|
769 joystick->nballs = layout->nballs; |
|
dc29e5907694
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|
770 } |
|
dc29e5907694
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|
771 #endif |
|
dc29e5907694
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diff
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|
772 |
|
dc29e5907694
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diff
changeset
|
773 |
| 0 | 774 /* Function to open a joystick for use. |
| 775 The joystick to open is specified by the index field of the joystick. | |
| 776 This should fill the nbuttons and naxes fields of the joystick structure. | |
| 777 It returns 0, or -1 if there is an error. | |
| 778 */ | |
| 779 int SDL_SYS_JoystickOpen(SDL_Joystick *joystick) | |
| 780 { | |
| 781 int fd; | |
|
892
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Sam Lantinga <slouken@libsdl.org>
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diff
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|
782 SDL_logical_joydecl(int realindex); |
|
dc29e5907694
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diff
changeset
|
783 SDL_logical_joydecl(SDL_Joystick *realjoy = NULL); |
| 0 | 784 |
| 785 /* Open the joystick and set the joystick file descriptor */ | |
|
892
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|
786 #ifndef NO_LOGICAL_JOYSTICKS |
|
dc29e5907694
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changeset
|
787 if (SDL_joylist[joystick->index].fname == NULL) { |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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|
788 SDL_joylist_head(realindex, joystick->index); |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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|
789 realjoy = SDL_JoystickOpen(realindex); |
|
dc29e5907694
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parents:
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diff
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|
790 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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|
791 if (realjoy == NULL) |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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parents:
872
diff
changeset
|
792 return(-1); |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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diff
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|
793 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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|
794 fd = realjoy->hwdata->fd; |
|
dc29e5907694
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|
795 |
|
dc29e5907694
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|
796 } else { |
|
dc29e5907694
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diff
changeset
|
797 fd = open(SDL_joylist[joystick->index].fname, O_RDONLY, 0); |
|
dc29e5907694
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|
798 } |
|
dc29e5907694
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changeset
|
799 SDL_joylist[joystick->index].joy = joystick; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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|
800 #else |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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|
801 fd = open(SDL_joylist[joystick->index].fname, O_RDONLY, 0); |
|
dc29e5907694
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|
802 #endif |
|
dc29e5907694
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diff
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|
803 |
| 0 | 804 if ( fd < 0 ) { |
| 805 SDL_SetError("Unable to open %s\n", | |
| 806 SDL_joylist[joystick->index]); | |
| 807 return(-1); | |
| 808 } | |
| 809 joystick->hwdata = (struct joystick_hwdata *) | |
|
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|
810 SDL_malloc(sizeof(*joystick->hwdata)); |
| 0 | 811 if ( joystick->hwdata == NULL ) { |
| 812 SDL_OutOfMemory(); | |
| 813 close(fd); | |
| 814 return(-1); | |
| 815 } | |
|
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|
816 SDL_memset(joystick->hwdata, 0, sizeof(*joystick->hwdata)); |
| 0 | 817 joystick->hwdata->fd = fd; |
| 818 | |
| 819 /* Set the joystick to non-blocking read mode */ | |
| 820 fcntl(fd, F_SETFL, O_NONBLOCK); | |
| 821 | |
| 822 /* Get the number of buttons and axes on the joystick */ | |
|
892
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|
823 #ifndef NO_LOGICAL_JOYSTICKS |
|
dc29e5907694
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|
824 if (realjoy) |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
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|
825 ConfigLogicalJoystick(joystick); |
|
dc29e5907694
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|
826 else |
|
dc29e5907694
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|
827 #endif |
|
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|
828 #if SDL_INPUT_LINUXEV |
| 0 | 829 if ( ! EV_ConfigJoystick(joystick, fd) ) |
| 830 #endif | |
|
554
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|
831 JS_ConfigJoystick(joystick, fd); |
|
38b1a98aeb11
Linux joystick cleanups from Alan Swanson
Sam Lantinga <slouken@libsdl.org>
parents:
408
diff
changeset
|
832 |
| 0 | 833 return(0); |
| 834 } | |
| 835 | |
|
892
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
836 #ifndef NO_LOGICAL_JOYSTICKS |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
837 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
838 static SDL_Joystick* FindLogicalJoystick( |
| 1551 | 839 SDL_Joystick *joystick, struct joystick_logical_mapping* v) |
|
892
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
840 { |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
841 SDL_Joystick *logicaljoy; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
842 register int i; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
843 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
844 i = joystick->index; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
845 logicaljoy = NULL; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
846 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
847 /* get the fake joystick that will receive the event |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
848 */ |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
849 for(;;) { |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
850 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
851 if (SDL_joylist[i].logicalno == v->njoy) { |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
852 logicaljoy = SDL_joylist[i].joy; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
853 break; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
854 } |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
855 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
856 if (SDL_joylist[i].next == 0) |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
857 break; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
858 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
859 i = SDL_joylist[i].next; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
860 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
861 } |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
862 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
863 return logicaljoy; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
864 } |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
865 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
866 static int LogicalJoystickButton( |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
867 SDL_Joystick *joystick, Uint8 button, Uint8 state){ |
| 1551 | 868 struct joystick_logical_mapping* buttons; |
|
892
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
869 SDL_Joystick *logicaljoy = NULL; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
870 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
871 /* if there's no map then this is just a regular joystick |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
872 */ |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
873 if (SDL_joylist[joystick->index].map == NULL) |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
874 return 0; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
875 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
876 /* get the logical joystick that will receive the event |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
877 */ |
| 1551 | 878 buttons = SDL_joylist[joystick->index].map->buttonmap+button; |
|
892
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
879 logicaljoy = FindLogicalJoystick(joystick, buttons); |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
880 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
881 if (logicaljoy == NULL) |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
882 return 1; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
883 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
884 SDL_PrivateJoystickButton(logicaljoy, buttons->nthing, state); |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
885 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
886 return 1; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
887 } |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
888 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
889 static int LogicalJoystickAxis( |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
890 SDL_Joystick *joystick, Uint8 axis, Sint16 value) |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
891 { |
| 1551 | 892 struct joystick_logical_mapping* axes; |
|
892
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
893 SDL_Joystick *logicaljoy = NULL; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
894 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
895 /* if there's no map then this is just a regular joystick |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
896 */ |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
897 if (SDL_joylist[joystick->index].map == NULL) |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
898 return 0; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
899 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
900 /* get the logical joystick that will receive the event |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
901 */ |
| 1551 | 902 axes = SDL_joylist[joystick->index].map->axismap+axis; |
|
892
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
903 logicaljoy = FindLogicalJoystick(joystick, axes); |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
904 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
905 if (logicaljoy == NULL) |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
906 return 1; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
907 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
908 SDL_PrivateJoystickAxis(logicaljoy, axes->nthing, value); |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
909 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
910 return 1; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
911 } |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
912 #endif /* USE_LOGICAL_JOYSTICKS */ |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
913 |
| 0 | 914 static __inline__ |
| 915 void HandleHat(SDL_Joystick *stick, Uint8 hat, int axis, int value) | |
| 916 { | |
| 917 struct hwdata_hat *the_hat; | |
| 918 const Uint8 position_map[3][3] = { | |
| 919 { SDL_HAT_LEFTUP, SDL_HAT_UP, SDL_HAT_RIGHTUP }, | |
| 920 { SDL_HAT_LEFT, SDL_HAT_CENTERED, SDL_HAT_RIGHT }, | |
| 921 { SDL_HAT_LEFTDOWN, SDL_HAT_DOWN, SDL_HAT_RIGHTDOWN } | |
| 922 }; | |
|
892
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
923 SDL_logical_joydecl(SDL_Joystick *logicaljoy = NULL); |
| 1551 | 924 SDL_logical_joydecl(struct joystick_logical_mapping* hats = NULL); |
| 0 | 925 |
| 926 the_hat = &stick->hwdata->hats[hat]; | |
| 927 if ( value < 0 ) { | |
| 928 value = 0; | |
| 929 } else | |
| 930 if ( value == 0 ) { | |
| 931 value = 1; | |
| 932 } else | |
| 933 if ( value > 0 ) { | |
| 934 value = 2; | |
| 935 } | |
| 936 if ( value != the_hat->axis[axis] ) { | |
| 937 the_hat->axis[axis] = value; | |
|
892
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
938 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
939 #ifndef NO_LOGICAL_JOYSTICKS |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
940 /* if there's no map then this is just a regular joystick |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
941 */ |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
942 if (SDL_joylist[stick->index].map != NULL) { |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
943 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
944 /* get the fake joystick that will receive the event |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
945 */ |
| 1551 | 946 hats = SDL_joylist[stick->index].map->hatmap+hat; |
|
892
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
947 logicaljoy = FindLogicalJoystick(stick, hats); |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
948 } |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
949 |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
950 if (logicaljoy) { |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
951 stick = logicaljoy; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
952 hat = hats->nthing; |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
953 } |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
954 #endif /* USE_LOGICAL_JOYSTICKS */ |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
955 |
| 0 | 956 SDL_PrivateJoystickHat(stick, hat, |
| 957 position_map[the_hat->axis[1]][the_hat->axis[0]]); | |
| 958 } | |
| 959 } | |
| 960 | |
| 961 static __inline__ | |
| 962 void HandleBall(SDL_Joystick *stick, Uint8 ball, int axis, int value) | |
| 963 { | |
| 964 stick->hwdata->balls[ball].axis[axis] += value; | |
| 965 } | |
| 966 | |
| 967 /* Function to update the state of a joystick - called as a device poll. | |
| 968 * This function shouldn't update the joystick structure directly, | |
| 969 * but instead should call SDL_PrivateJoystick*() to deliver events | |
| 970 * and update joystick device state. | |
| 971 */ | |
| 972 static __inline__ void JS_HandleEvents(SDL_Joystick *joystick) | |
| 973 { | |
| 974 struct js_event events[32]; | |
| 975 int i, len; | |
| 976 Uint8 other_axis; | |
| 977 | |
|
892
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
978 #ifndef NO_LOGICAL_JOYSTICKS |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
979 if (SDL_joylist[joystick->index].fname == NULL) { |
|
dc29e5907694
Date: Sun, 18 Apr 2004 16:09:53 -0400 (EDT)
Sam Lantinga <slouken@libsdl.org>
parents:
872
diff
changeset
|
980 SDL_joylist_head(i, joystick->index); |
|
1752
97f20f2a1d85
SDL_sysjoystick.c:983: warning: 'return' with a value, in function returning void
Sam Lantinga <slouken@libsdl.org>
parents:
1635
diff
changeset
|
981 JS_HandleEvents(SDL_joylist[i].joy); |
|
97f20f2a1d85
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982 return; |
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983 } |
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984 #endif |
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985 |
| 0 | 986 while ((len=read(joystick->hwdata->fd, events, (sizeof events))) > 0) { |
| 987 len /= sizeof(events[0]); | |
| 988 for ( i=0; i<len; ++i ) { | |
| 989 switch (events[i].type & ~JS_EVENT_INIT) { | |
| 990 case JS_EVENT_AXIS: | |
| 991 if ( events[i].number < joystick->naxes ) { | |
|
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992 #ifndef NO_LOGICAL_JOYSTICKS |
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993 if (!LogicalJoystickAxis(joystick, |
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994 events[i].number, events[i].value)) |
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995 #endif |
| 0 | 996 SDL_PrivateJoystickAxis(joystick, |
| 997 events[i].number, events[i].value); | |
| 998 break; | |
| 999 } | |
| 1000 events[i].number -= joystick->naxes; | |
|
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1001 other_axis = (events[i].number / 2); |
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1002 if ( other_axis < joystick->nhats ) { |
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1003 HandleHat(joystick, other_axis, |
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1004 events[i].number%2, |
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1005 events[i].value); |
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1006 break; |
| 0 | 1007 } |
| 1008 events[i].number -= joystick->nhats*2; | |
| 1009 other_axis = (events[i].number / 2); | |
| 1010 if ( other_axis < joystick->nballs ) { | |
| 1011 HandleBall(joystick, other_axis, | |
| 1012 events[i].number%2, | |
| 1013 events[i].value); | |
| 1014 break; | |
| 1015 } | |
| 1016 break; | |
| 1017 case JS_EVENT_BUTTON: | |
|
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1018 #ifndef NO_LOGICAL_JOYSTICKS |
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1019 if (!LogicalJoystickButton(joystick, |
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1020 events[i].number, events[i].value)) |
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1021 #endif |
| 0 | 1022 SDL_PrivateJoystickButton(joystick, |
| 1023 events[i].number, events[i].value); | |
| 1024 break; | |
| 1025 default: | |
| 1026 /* ?? */ | |
| 1027 break; | |
| 1028 } | |
| 1029 } | |
| 1030 } | |
| 1031 } | |
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1032 #if SDL_INPUT_LINUXEV |
| 0 | 1033 static __inline__ int EV_AxisCorrect(SDL_Joystick *joystick, int which, int value) |
| 1034 { | |
| 1035 struct axis_correct *correct; | |
| 1036 | |
| 1037 correct = &joystick->hwdata->abs_correct[which]; | |
| 1038 if ( correct->used ) { | |
| 1039 if ( value > correct->coef[0] ) { | |
| 1040 if ( value < correct->coef[1] ) { | |
| 1041 return 0; | |
| 1042 } | |
| 1043 value -= correct->coef[1]; | |
| 1044 } else { | |
| 1045 value -= correct->coef[0]; | |
| 1046 } | |
| 1047 value *= correct->coef[2]; | |
| 1048 value >>= 14; | |
| 1049 } | |
|
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1050 |
| 0 | 1051 /* Clamp and return */ |
| 1275 | 1052 if ( value < -32768 ) return -32768; |
|
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1053 if ( value > 32767 ) return 32767; |
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1054 |
| 0 | 1055 return value; |
| 1056 } | |
| 1057 | |
| 1058 static __inline__ void EV_HandleEvents(SDL_Joystick *joystick) | |
| 1059 { | |
| 1060 struct input_event events[32]; | |
| 1061 int i, len; | |
| 1062 int code; | |
| 1063 | |
|
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1064 #ifndef NO_LOGICAL_JOYSTICKS |
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1065 if (SDL_joylist[joystick->index].fname == NULL) { |
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1066 SDL_joylist_head(i, joystick->index); |
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1067 return EV_HandleEvents(SDL_joylist[i].joy); |
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1068 } |
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1069 #endif |
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1070 |
| 0 | 1071 while ((len=read(joystick->hwdata->fd, events, (sizeof events))) > 0) { |
| 1072 len /= sizeof(events[0]); | |
| 1073 for ( i=0; i<len; ++i ) { | |
| 1074 code = events[i].code; | |
| 1075 switch (events[i].type) { | |
| 1076 case EV_KEY: | |
| 1077 if ( code >= BTN_MISC ) { | |
| 1078 code -= BTN_MISC; | |
|
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1079 #ifndef NO_LOGICAL_JOYSTICKS |
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1080 if (!LogicalJoystickButton(joystick, |
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1081 joystick->hwdata->key_map[code], |
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1082 events[i].value)) |
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1083 #endif |
| 0 | 1084 SDL_PrivateJoystickButton(joystick, |
| 1085 joystick->hwdata->key_map[code], | |
| 1086 events[i].value); | |
| 1087 } | |
| 1088 break; | |
| 1089 case EV_ABS: | |
| 1090 switch (code) { | |
| 1091 case ABS_HAT0X: | |
| 1092 case ABS_HAT0Y: | |
| 1093 case ABS_HAT1X: | |
| 1094 case ABS_HAT1Y: | |
| 1095 case ABS_HAT2X: | |
| 1096 case ABS_HAT2Y: | |
| 1097 case ABS_HAT3X: | |
| 1098 case ABS_HAT3Y: | |
| 1099 code -= ABS_HAT0X; | |
| 1100 HandleHat(joystick, code/2, code%2, | |
| 1101 events[i].value); | |
| 1102 break; | |
| 1103 default: | |
| 1104 events[i].value = EV_AxisCorrect(joystick, code, events[i].value); | |
|
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1105 #ifndef NO_LOGICAL_JOYSTICKS |
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1106 if (!LogicalJoystickAxis(joystick, |
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1107 joystick->hwdata->abs_map[code], |
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1108 events[i].value)) |
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1109 #endif |
| 0 | 1110 SDL_PrivateJoystickAxis(joystick, |
| 1111 joystick->hwdata->abs_map[code], | |
| 1112 events[i].value); | |
| 1113 break; | |
| 1114 } | |
| 1115 break; | |
| 1116 case EV_REL: | |
| 1117 switch (code) { | |
| 1118 case REL_X: | |
| 1119 case REL_Y: | |
| 1120 code -= REL_X; | |
| 1121 HandleBall(joystick, code/2, code%2, | |
| 1122 events[i].value); | |
| 1123 break; | |
| 1124 default: | |
| 1125 break; | |
| 1126 } | |
| 1127 break; | |
| 1128 default: | |
| 1129 break; | |
| 1130 } | |
| 1131 } | |
| 1132 } | |
| 1133 } | |
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1134 #endif /* SDL_INPUT_LINUXEV */ |
| 0 | 1135 |
| 1136 void SDL_SYS_JoystickUpdate(SDL_Joystick *joystick) | |
| 1137 { | |
| 1138 int i; | |
| 1139 | |
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1140 #if SDL_INPUT_LINUXEV |
| 0 | 1141 if ( joystick->hwdata->is_hid ) |
| 1142 EV_HandleEvents(joystick); | |
| 1143 else | |
| 1144 #endif | |
| 1145 JS_HandleEvents(joystick); | |
| 1146 | |
| 1147 /* Deliver ball motion updates */ | |
| 1148 for ( i=0; i<joystick->nballs; ++i ) { | |
| 1149 int xrel, yrel; | |
| 1150 | |
| 1151 xrel = joystick->hwdata->balls[i].axis[0]; | |
| 1152 yrel = joystick->hwdata->balls[i].axis[1]; | |
| 1153 if ( xrel || yrel ) { | |
| 1154 joystick->hwdata->balls[i].axis[0] = 0; | |
| 1155 joystick->hwdata->balls[i].axis[1] = 0; | |
| 1156 SDL_PrivateJoystickBall(joystick, (Uint8)i, xrel, yrel); | |
| 1157 } | |
| 1158 } | |
| 1159 } | |
| 1160 | |
| 1161 /* Function to close a joystick after use */ | |
| 1162 void SDL_SYS_JoystickClose(SDL_Joystick *joystick) | |
| 1163 { | |
|
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1164 #ifndef NO_LOGICAL_JOYSTICKS |
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1165 register int i; |
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1166 if (SDL_joylist[joystick->index].fname == NULL) { |
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1167 SDL_joylist_head(i, joystick->index); |
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1168 SDL_JoystickClose(SDL_joylist[i].joy); |
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1169 } |
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1170 #endif |
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1171 |
| 0 | 1172 if ( joystick->hwdata ) { |
|
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1173 #ifndef NO_LOGICAL_JOYSTICKS |
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1174 if (SDL_joylist[joystick->index].fname != NULL) |
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1175 #endif |
| 0 | 1176 close(joystick->hwdata->fd); |
| 1177 if ( joystick->hwdata->hats ) { | |
|
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1178 SDL_free(joystick->hwdata->hats); |
| 0 | 1179 } |
| 1180 if ( joystick->hwdata->balls ) { | |
|
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1181 SDL_free(joystick->hwdata->balls); |
| 0 | 1182 } |
|
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1183 SDL_free(joystick->hwdata); |
| 0 | 1184 joystick->hwdata = NULL; |
| 1185 } | |
| 1186 } | |
| 1187 | |
| 1188 /* Function to perform any system-specific joystick related cleanup */ | |
| 1189 void SDL_SYS_JoystickQuit(void) | |
| 1190 { | |
| 1191 int i; | |
| 1192 | |
|
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1193 for ( i=0; SDL_joylist[i].fname; ++i ) { |
|
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1194 SDL_free(SDL_joylist[i].fname); |
| 0 | 1195 } |
|
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1196 SDL_joylist[0].fname = NULL; |
| 0 | 1197 } |
| 1198 | |
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1199 #endif /* SDL_JOYSTICK_LINUX */ |