Mercurial > sdl-ios-xcode
annotate src/joystick/linux/SDL_sysjoystick.c @ 1551:02e19471a694
Fixed bug #4
[Note: I'm applying this patch since it's a cleaner version of what's already implemented, and supports this controller on older kernels. I'll ask to make sure this doesn't break on the new kernels where it's no longer necessary]
Date: Mon, 21 Mar 2005 09:41:11 -0500
From: Chris Nelson
Subject: SDL Patch
Hey, Ryan.
I submitted the following patch about a year ago. It's just a simple
patch for the linux port, to make multiple joysticks each appear to SDL
as their own device, if they are on the same USB port (specifically,
these guys
<http://www.consoleplus.co.uk/product_info.php?pName=super-joybox-5-quad-joypad-converter>,
which allow 4 Playstation2 controllers to be accessed via a single USB
port). Without this patch, SDL pretty much drops the ball, and reports
that there are 4 joysticks available when less than that number are
plugged in.
My work built upon the work of another person with the same device. When
I submitted the patch to the list, he tested it, but it didn't work for
him, so the patch was never accepted. Maybe about 3 times in the past
year, I've tried to email the guy, to see if he couldn't run my new
version, complete with debug code to diagnose the problem he was having.
He never got back to me.
So, I'm attaching the patch. I wish I knew why it didn't work for him,
but I've been using it for the last year with no problems. Let me know
if you need any more information, or have any ideas as to how I could
test it. I'd like to see it in the tree, but I want to make sure it works.
-Chris
author | Sam Lantinga <slouken@libsdl.org> |
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date | Sun, 19 Mar 2006 06:31:34 +0000 |
parents | d910939febfa |
children | 92947e3a18db |
rev | line source |
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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 |
24 /* This is the system specific header for the SDL joystick API */ | |
25 | |
26 #include <sys/stat.h> | |
27 #include <unistd.h> | |
28 #include <fcntl.h> | |
29 #include <sys/ioctl.h> | |
30 #include <limits.h> /* For the definition of PATH_MAX */ | |
377
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31 #ifdef __arm__ |
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32 #include <linux/limits.h> /* Arm cross-compiler needs this */ |
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33 #endif |
0 | 34 #include <linux/joystick.h> |
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35 #if SDL_INPUT_LINUXEV |
0 | 36 #include <linux/input.h> |
37 #endif | |
38 | |
39 #include "SDL_joystick.h" | |
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40 #include "../SDL_sysjoystick.h" |
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41 #include "../SDL_joystick_c.h" |
0 | 42 |
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43 /* Special joystick configurations */ |
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44 static struct { |
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45 const char *name; |
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46 int naxes; |
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47 int nhats; |
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48 int nballs; |
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49 } special_joysticks[] = { |
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50 { "MadCatz Panther XL", 3, 2, 1 }, /* We don't handle rudder (axis 8) */ |
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51 { "SideWinder Precision Pro", 4, 1, 0 }, |
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52 { "SideWinder 3D Pro", 4, 1, 0 }, |
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53 { "Microsoft SideWinder 3D 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 | |
892
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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 */ | |
245
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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 |
554
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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 |
554
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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 | |
554
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567 static SDL_bool JS_ConfigJoystick(SDL_Joystick *joystick, int fd) |
0 | 568 { |
569 SDL_bool handled; | |
554
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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 */ |
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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 } | |
554
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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 | |
896
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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; | |
872
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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 |
892
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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 + |
892
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764 SDL_joylist[joystick->index].logicalno; |
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765 |
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766 joystick->nbuttons = layout->nbuttons; |
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767 joystick->nhats = layout->nhats; |
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768 joystick->naxes = layout->naxes; |
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769 joystick->nballs = layout->nballs; |
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770 } |
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771 #endif |
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772 |
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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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782 SDL_logical_joydecl(int realindex); |
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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 |
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787 if (SDL_joylist[joystick->index].fname == NULL) { |
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|
788 SDL_joylist_head(realindex, joystick->index); |
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789 realjoy = SDL_JoystickOpen(realindex); |
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790 |
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791 if (realjoy == NULL) |
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792 return(-1); |
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793 |
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794 fd = realjoy->hwdata->fd; |
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795 |
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796 } else { |
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797 fd = open(SDL_joylist[joystick->index].fname, O_RDONLY, 0); |
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798 } |
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799 SDL_joylist[joystick->index].joy = joystick; |
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800 #else |
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801 fd = open(SDL_joylist[joystick->index].fname, O_RDONLY, 0); |
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802 #endif |
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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 *) | |
1336
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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 } | |
1336
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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 |
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824 if (realjoy) |
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825 ConfigLogicalJoystick(joystick); |
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826 else |
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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); |
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832 |
0 | 833 return(0); |
834 } | |
835 | |
892
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836 #ifndef NO_LOGICAL_JOYSTICKS |
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837 |
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838 static SDL_Joystick* FindLogicalJoystick( |
1551 | 839 SDL_Joystick *joystick, struct joystick_logical_mapping* v) |
892
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840 { |
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841 SDL_Joystick *logicaljoy; |
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842 register int i; |
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843 |
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844 i = joystick->index; |
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845 logicaljoy = NULL; |
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846 |
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847 /* get the fake joystick that will receive the event |
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848 */ |
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849 for(;;) { |
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850 |
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851 if (SDL_joylist[i].logicalno == v->njoy) { |
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852 logicaljoy = SDL_joylist[i].joy; |
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853 break; |
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854 } |
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855 |
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856 if (SDL_joylist[i].next == 0) |
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857 break; |
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858 |
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859 i = SDL_joylist[i].next; |
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860 |
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861 } |
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862 |
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863 return logicaljoy; |
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864 } |
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865 |
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866 static int LogicalJoystickButton( |
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867 SDL_Joystick *joystick, Uint8 button, Uint8 state){ |
1551 | 868 struct joystick_logical_mapping* buttons; |
892
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869 SDL_Joystick *logicaljoy = NULL; |
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870 |
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871 /* if there's no map then this is just a regular joystick |
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872 */ |
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873 if (SDL_joylist[joystick->index].map == NULL) |
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874 return 0; |
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875 |
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876 /* get the logical joystick that will receive the event |
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877 */ |
1551 | 878 buttons = SDL_joylist[joystick->index].map->buttonmap+button; |
892
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879 logicaljoy = FindLogicalJoystick(joystick, buttons); |
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880 |
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881 if (logicaljoy == NULL) |
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882 return 1; |
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883 |
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884 SDL_PrivateJoystickButton(logicaljoy, buttons->nthing, state); |
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885 |
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886 return 1; |
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887 } |
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888 |
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889 static int LogicalJoystickAxis( |
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890 SDL_Joystick *joystick, Uint8 axis, Sint16 value) |
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891 { |
1551 | 892 struct joystick_logical_mapping* axes; |
892
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893 SDL_Joystick *logicaljoy = NULL; |
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894 |
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895 /* if there's no map then this is just a regular joystick |
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896 */ |
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897 if (SDL_joylist[joystick->index].map == NULL) |
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898 return 0; |
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899 |
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900 /* get the logical joystick that will receive the event |
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901 */ |
1551 | 902 axes = SDL_joylist[joystick->index].map->axismap+axis; |
892
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903 logicaljoy = FindLogicalJoystick(joystick, axes); |
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904 |
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905 if (logicaljoy == NULL) |
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906 return 1; |
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907 |
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908 SDL_PrivateJoystickAxis(logicaljoy, axes->nthing, value); |
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909 |
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910 return 1; |
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911 } |
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912 #endif /* USE_LOGICAL_JOYSTICKS */ |
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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
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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
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938 |
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939 #ifndef NO_LOGICAL_JOYSTICKS |
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940 /* if there's no map then this is just a regular joystick |
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941 */ |
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942 if (SDL_joylist[stick->index].map != NULL) { |
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943 |
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944 /* get the fake joystick that will receive the event |
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945 */ |
1551 | 946 hats = SDL_joylist[stick->index].map->hatmap+hat; |
892
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|
947 logicaljoy = FindLogicalJoystick(stick, hats); |
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948 } |
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949 |
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950 if (logicaljoy) { |
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951 stick = logicaljoy; |
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952 hat = hats->nthing; |
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953 } |
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954 #endif /* USE_LOGICAL_JOYSTICKS */ |
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|
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
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978 #ifndef NO_LOGICAL_JOYSTICKS |
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979 if (SDL_joylist[joystick->index].fname == NULL) { |
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980 SDL_joylist_head(i, joystick->index); |
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981 return JS_HandleEvents(SDL_joylist[i].joy); |
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982 } |
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983 #endif |
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|
984 |
0 | 985 while ((len=read(joystick->hwdata->fd, events, (sizeof events))) > 0) { |
986 len /= sizeof(events[0]); | |
987 for ( i=0; i<len; ++i ) { | |
988 switch (events[i].type & ~JS_EVENT_INIT) { | |
989 case JS_EVENT_AXIS: | |
990 if ( events[i].number < joystick->naxes ) { | |
892
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|
991 #ifndef NO_LOGICAL_JOYSTICKS |
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992 if (!LogicalJoystickAxis(joystick, |
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993 events[i].number, events[i].value)) |
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994 #endif |
0 | 995 SDL_PrivateJoystickAxis(joystick, |
996 events[i].number, events[i].value); | |
997 break; | |
998 } | |
999 events[i].number -= joystick->naxes; | |
589
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1000 other_axis = (events[i].number / 2); |
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|
1001 if ( other_axis < joystick->nhats ) { |
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|
1002 HandleHat(joystick, other_axis, |
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1003 events[i].number%2, |
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1004 events[i].value); |
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|
1005 break; |
0 | 1006 } |
1007 events[i].number -= joystick->nhats*2; | |
1008 other_axis = (events[i].number / 2); | |
1009 if ( other_axis < joystick->nballs ) { | |
1010 HandleBall(joystick, other_axis, | |
1011 events[i].number%2, | |
1012 events[i].value); | |
1013 break; | |
1014 } | |
1015 break; | |
1016 case JS_EVENT_BUTTON: | |
892
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1017 #ifndef NO_LOGICAL_JOYSTICKS |
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1018 if (!LogicalJoystickButton(joystick, |
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1019 events[i].number, events[i].value)) |
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1020 #endif |
0 | 1021 SDL_PrivateJoystickButton(joystick, |
1022 events[i].number, events[i].value); | |
1023 break; | |
1024 default: | |
1025 /* ?? */ | |
1026 break; | |
1027 } | |
1028 } | |
1029 } | |
1030 } | |
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1031 #if SDL_INPUT_LINUXEV |
0 | 1032 static __inline__ int EV_AxisCorrect(SDL_Joystick *joystick, int which, int value) |
1033 { | |
1034 struct axis_correct *correct; | |
1035 | |
1036 correct = &joystick->hwdata->abs_correct[which]; | |
1037 if ( correct->used ) { | |
1038 if ( value > correct->coef[0] ) { | |
1039 if ( value < correct->coef[1] ) { | |
1040 return 0; | |
1041 } | |
1042 value -= correct->coef[1]; | |
1043 } else { | |
1044 value -= correct->coef[0]; | |
1045 } | |
1046 value *= correct->coef[2]; | |
1047 value >>= 14; | |
1048 } | |
554
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1049 |
0 | 1050 /* Clamp and return */ |
1275 | 1051 if ( value < -32768 ) return -32768; |
554
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1052 if ( value > 32767 ) return 32767; |
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1053 |
0 | 1054 return value; |
1055 } | |
1056 | |
1057 static __inline__ void EV_HandleEvents(SDL_Joystick *joystick) | |
1058 { | |
1059 struct input_event events[32]; | |
1060 int i, len; | |
1061 int code; | |
1062 | |
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1063 #ifndef NO_LOGICAL_JOYSTICKS |
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1064 if (SDL_joylist[joystick->index].fname == NULL) { |
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1065 SDL_joylist_head(i, joystick->index); |
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1066 return EV_HandleEvents(SDL_joylist[i].joy); |
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1067 } |
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1068 #endif |
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1069 |
0 | 1070 while ((len=read(joystick->hwdata->fd, events, (sizeof events))) > 0) { |
1071 len /= sizeof(events[0]); | |
1072 for ( i=0; i<len; ++i ) { | |
1073 code = events[i].code; | |
1074 switch (events[i].type) { | |
1075 case EV_KEY: | |
1076 if ( code >= BTN_MISC ) { | |
1077 code -= BTN_MISC; | |
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1078 #ifndef NO_LOGICAL_JOYSTICKS |
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1079 if (!LogicalJoystickButton(joystick, |
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1080 joystick->hwdata->key_map[code], |
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1081 events[i].value)) |
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1082 #endif |
0 | 1083 SDL_PrivateJoystickButton(joystick, |
1084 joystick->hwdata->key_map[code], | |
1085 events[i].value); | |
1086 } | |
1087 break; | |
1088 case EV_ABS: | |
1089 switch (code) { | |
1090 case ABS_HAT0X: | |
1091 case ABS_HAT0Y: | |
1092 case ABS_HAT1X: | |
1093 case ABS_HAT1Y: | |
1094 case ABS_HAT2X: | |
1095 case ABS_HAT2Y: | |
1096 case ABS_HAT3X: | |
1097 case ABS_HAT3Y: | |
1098 code -= ABS_HAT0X; | |
1099 HandleHat(joystick, code/2, code%2, | |
1100 events[i].value); | |
1101 break; | |
1102 default: | |
1103 events[i].value = EV_AxisCorrect(joystick, code, events[i].value); | |
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1104 #ifndef NO_LOGICAL_JOYSTICKS |
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1105 if (!LogicalJoystickAxis(joystick, |
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1106 joystick->hwdata->abs_map[code], |
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1107 events[i].value)) |
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1108 #endif |
0 | 1109 SDL_PrivateJoystickAxis(joystick, |
1110 joystick->hwdata->abs_map[code], | |
1111 events[i].value); | |
1112 break; | |
1113 } | |
1114 break; | |
1115 case EV_REL: | |
1116 switch (code) { | |
1117 case REL_X: | |
1118 case REL_Y: | |
1119 code -= REL_X; | |
1120 HandleBall(joystick, code/2, code%2, | |
1121 events[i].value); | |
1122 break; | |
1123 default: | |
1124 break; | |
1125 } | |
1126 break; | |
1127 default: | |
1128 break; | |
1129 } | |
1130 } | |
1131 } | |
1132 } | |
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1133 #endif /* SDL_INPUT_LINUXEV */ |
0 | 1134 |
1135 void SDL_SYS_JoystickUpdate(SDL_Joystick *joystick) | |
1136 { | |
1137 int i; | |
1138 | |
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1139 #if SDL_INPUT_LINUXEV |
0 | 1140 if ( joystick->hwdata->is_hid ) |
1141 EV_HandleEvents(joystick); | |
1142 else | |
1143 #endif | |
1144 JS_HandleEvents(joystick); | |
1145 | |
1146 /* Deliver ball motion updates */ | |
1147 for ( i=0; i<joystick->nballs; ++i ) { | |
1148 int xrel, yrel; | |
1149 | |
1150 xrel = joystick->hwdata->balls[i].axis[0]; | |
1151 yrel = joystick->hwdata->balls[i].axis[1]; | |
1152 if ( xrel || yrel ) { | |
1153 joystick->hwdata->balls[i].axis[0] = 0; | |
1154 joystick->hwdata->balls[i].axis[1] = 0; | |
1155 SDL_PrivateJoystickBall(joystick, (Uint8)i, xrel, yrel); | |
1156 } | |
1157 } | |
1158 } | |
1159 | |
1160 /* Function to close a joystick after use */ | |
1161 void SDL_SYS_JoystickClose(SDL_Joystick *joystick) | |
1162 { | |
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1163 #ifndef NO_LOGICAL_JOYSTICKS |
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1164 register int i; |
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1165 if (SDL_joylist[joystick->index].fname == NULL) { |
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1166 SDL_joylist_head(i, joystick->index); |
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1167 SDL_JoystickClose(SDL_joylist[i].joy); |
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1168 } |
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1169 #endif |
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1170 |
0 | 1171 if ( joystick->hwdata ) { |
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1172 #ifndef NO_LOGICAL_JOYSTICKS |
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1173 if (SDL_joylist[joystick->index].fname != NULL) |
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1174 #endif |
0 | 1175 close(joystick->hwdata->fd); |
1176 if ( joystick->hwdata->hats ) { | |
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1177 SDL_free(joystick->hwdata->hats); |
0 | 1178 } |
1179 if ( joystick->hwdata->balls ) { | |
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1180 SDL_free(joystick->hwdata->balls); |
0 | 1181 } |
1336
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1182 SDL_free(joystick->hwdata); |
0 | 1183 joystick->hwdata = NULL; |
1184 } | |
1185 } | |
1186 | |
1187 /* Function to perform any system-specific joystick related cleanup */ | |
1188 void SDL_SYS_JoystickQuit(void) | |
1189 { | |
1190 int i; | |
1191 | |
892
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1192 for ( i=0; SDL_joylist[i].fname; ++i ) { |
1336
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1193 SDL_free(SDL_joylist[i].fname); |
0 | 1194 } |
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1195 SDL_joylist[0].fname = NULL; |
0 | 1196 } |
1197 |