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1 /* 1 /*
2 * Copyright (c) 1998-2005 Vojtech Pavlik 2 * Copyright (c) 1998-2005 Vojtech Pavlik
3 */ 3 */
4 4
5 /* 5 /*
6 * Microsoft SideWinder joystick family driver 6 * Microsoft SideWinder joystick family driver for Linux
7 */ 7 */
8 8
9 /* 9 /*
10 * This program is free software; you can redi 10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Publi 11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either versio 12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version. 13 * (at your option) any later version.
14 * 14 *
15 * This program is distributed in the hope tha 15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the 16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details 18 * GNU General Public License for more details.
19 * 19 *
20 * You should have received a copy of the GNU 20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to t 21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 33 22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 * 23 *
24 * Should you need to contact me, the author, 24 * Should you need to contact me, the author, you can do so either by
25 * e-mail - mail your message to <vojtech@ucw. 25 * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
26 * Vojtech Pavlik, Simunkova 1594, Prague 8, 1 26 * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
27 */ 27 */
28 28
29 #include <linux/delay.h> 29 #include <linux/delay.h>
30 #include <linux/kernel.h> 30 #include <linux/kernel.h>
31 #include <linux/module.h> 31 #include <linux/module.h>
32 #include <linux/slab.h> 32 #include <linux/slab.h>
33 #include <linux/init.h> 33 #include <linux/init.h>
34 #include <linux/input.h> 34 #include <linux/input.h>
35 #include <linux/gameport.h> 35 #include <linux/gameport.h>
36 #include <linux/jiffies.h> 36 #include <linux/jiffies.h>
37 37
38 #define DRIVER_DESC "Microsoft SideWinder 38 #define DRIVER_DESC "Microsoft SideWinder joystick family driver"
39 39
40 MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz> 40 MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
41 MODULE_DESCRIPTION(DRIVER_DESC); 41 MODULE_DESCRIPTION(DRIVER_DESC);
42 MODULE_LICENSE("GPL"); 42 MODULE_LICENSE("GPL");
43 43
44 /* 44 /*
45 * These are really magic values. Changing the 45 * These are really magic values. Changing them can make a problem go away,
46 * as well as break everything. 46 * as well as break everything.
47 */ 47 */
48 48
49 #undef SW_DEBUG 49 #undef SW_DEBUG
50 #undef SW_DEBUG_DATA 50 #undef SW_DEBUG_DATA
51 51
52 #define SW_START 600 /* The time we 52 #define SW_START 600 /* The time we wait for the first bit [600 us] */
53 #define SW_STROBE 60 /* Max time pe 53 #define SW_STROBE 60 /* Max time per bit [60 us] */
54 #define SW_TIMEOUT 6 /* Wait for ev 54 #define SW_TIMEOUT 6 /* Wait for everything to settle [6 ms] */
55 #define SW_KICK 45 /* Wait after 55 #define SW_KICK 45 /* Wait after A0 fall till kick [45 us] */
56 #define SW_END 8 /* Number of b 56 #define SW_END 8 /* Number of bits before end of packet to kick */
57 #define SW_FAIL 16 /* Number of p 57 #define SW_FAIL 16 /* Number of packet read errors to fail and reinitialize */
58 #define SW_BAD 2 /* Number of p 58 #define SW_BAD 2 /* Number of packet read errors to switch off 3d Pro optimization */
59 #define SW_OK 64 /* Number of p 59 #define SW_OK 64 /* Number of packet read successes to switch optimization back on */
60 #define SW_LENGTH 512 /* Max number 60 #define SW_LENGTH 512 /* Max number of bits in a packet */
61 61
62 #ifdef SW_DEBUG 62 #ifdef SW_DEBUG
63 #define dbg(format, arg...) printk(KERN_DEBUG 63 #define dbg(format, arg...) printk(KERN_DEBUG __FILE__ ": " format "\n" , ## arg)
64 #else 64 #else
65 #define dbg(format, arg...) do {} while (0) 65 #define dbg(format, arg...) do {} while (0)
66 #endif 66 #endif
67 67
68 /* 68 /*
69 * SideWinder joystick types ... 69 * SideWinder joystick types ...
70 */ 70 */
71 71
72 #define SW_ID_3DP 0 72 #define SW_ID_3DP 0
73 #define SW_ID_GP 1 73 #define SW_ID_GP 1
74 #define SW_ID_PP 2 74 #define SW_ID_PP 2
75 #define SW_ID_FFP 3 75 #define SW_ID_FFP 3
76 #define SW_ID_FSP 4 76 #define SW_ID_FSP 4
77 #define SW_ID_FFW 5 77 #define SW_ID_FFW 5
78 78
79 /* 79 /*
80 * Names, buttons, axes ... 80 * Names, buttons, axes ...
81 */ 81 */
82 82
83 static char *sw_name[] = { "3D Pro", "Gam 83 static char *sw_name[] = { "3D Pro", "GamePad", "Precision Pro", "Force Feedback Pro", "FreeStyle Pro",
84 "Force Feedbac 84 "Force Feedback Wheel" };
85 85
86 static char sw_abs[][7] = { 86 static char sw_abs[][7] = {
87 { ABS_X, ABS_Y, ABS_RZ, ABS_THROTTLE, 87 { ABS_X, ABS_Y, ABS_RZ, ABS_THROTTLE, ABS_HAT0X, ABS_HAT0Y },
88 { ABS_X, ABS_Y }, 88 { ABS_X, ABS_Y },
89 { ABS_X, ABS_Y, ABS_RZ, ABS_THROTTLE, 89 { ABS_X, ABS_Y, ABS_RZ, ABS_THROTTLE, ABS_HAT0X, ABS_HAT0Y },
90 { ABS_X, ABS_Y, ABS_RZ, ABS_THROTTLE, 90 { ABS_X, ABS_Y, ABS_RZ, ABS_THROTTLE, ABS_HAT0X, ABS_HAT0Y },
91 { ABS_X, ABS_Y, ABS_THROTTLE, 91 { ABS_X, ABS_Y, ABS_THROTTLE, ABS_HAT0X, ABS_HAT0Y },
92 { ABS_RX, ABS_RUDDER, ABS_THROTTLE } 92 { ABS_RX, ABS_RUDDER, ABS_THROTTLE }};
93 93
94 static char sw_bit[][7] = { 94 static char sw_bit[][7] = {
95 { 10, 10, 9, 10, 1, 1 }, 95 { 10, 10, 9, 10, 1, 1 },
96 { 1, 1 }, 96 { 1, 1 },
97 { 10, 10, 6, 7, 1, 1 }, 97 { 10, 10, 6, 7, 1, 1 },
98 { 10, 10, 6, 7, 1, 1 }, 98 { 10, 10, 6, 7, 1, 1 },
99 { 10, 10, 6, 1, 1 }, 99 { 10, 10, 6, 1, 1 },
100 { 10, 7, 7, 1, 1 }}; 100 { 10, 7, 7, 1, 1 }};
101 101
102 static short sw_btn[][12] = { 102 static short sw_btn[][12] = {
103 { BTN_TRIGGER, BTN_TOP, BTN_THUMB, BTN 103 { BTN_TRIGGER, BTN_TOP, BTN_THUMB, BTN_THUMB2, BTN_BASE, BTN_BASE2, BTN_BASE3, BTN_BASE4, BTN_MODE },
104 { BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, B 104 { BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_TL, BTN_TR, BTN_START, BTN_MODE },
105 { BTN_TRIGGER, BTN_THUMB, BTN_TOP, BTN 105 { BTN_TRIGGER, BTN_THUMB, BTN_TOP, BTN_TOP2, BTN_BASE, BTN_BASE2, BTN_BASE3, BTN_BASE4, BTN_SELECT },
106 { BTN_TRIGGER, BTN_THUMB, BTN_TOP, BTN 106 { BTN_TRIGGER, BTN_THUMB, BTN_TOP, BTN_TOP2, BTN_BASE, BTN_BASE2, BTN_BASE3, BTN_BASE4, BTN_SELECT },
107 { BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, B 107 { BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_TL, BTN_TR, BTN_START, BTN_MODE, BTN_SELECT },
108 { BTN_TRIGGER, BTN_TOP, BTN_THUMB, BTN 108 { BTN_TRIGGER, BTN_TOP, BTN_THUMB, BTN_THUMB2, BTN_BASE, BTN_BASE2, BTN_BASE3, BTN_BASE4 }};
109 109
110 static struct { 110 static struct {
111 int x; 111 int x;
112 int y; 112 int y;
113 } sw_hat_to_axis[] = {{ 0, 0}, { 0,-1}, { 1,-1 113 } sw_hat_to_axis[] = {{ 0, 0}, { 0,-1}, { 1,-1}, { 1, 0}, { 1, 1}, { 0, 1}, {-1, 1}, {-1, 0}, {-1,-1}};
114 114
115 struct sw { 115 struct sw {
116 struct gameport *gameport; 116 struct gameport *gameport;
117 struct input_dev *dev[4]; 117 struct input_dev *dev[4];
118 char name[64]; 118 char name[64];
119 char phys[4][32]; 119 char phys[4][32];
120 int length; 120 int length;
121 int type; 121 int type;
122 int bits; 122 int bits;
123 int number; 123 int number;
124 int fail; 124 int fail;
125 int ok; 125 int ok;
126 int reads; 126 int reads;
127 int bads; 127 int bads;
128 }; 128 };
129 129
130 /* 130 /*
131 * sw_read_packet() is a function which reads 131 * sw_read_packet() is a function which reads either a data packet, or an
132 * identification packet from a SideWinder joy 132 * identification packet from a SideWinder joystick. The protocol is very,
133 * very, very braindamaged. Microsoft patented 133 * very, very braindamaged. Microsoft patented it in US patent #5628686.
134 */ 134 */
135 135
136 static int sw_read_packet(struct gameport *gam 136 static int sw_read_packet(struct gameport *gameport, unsigned char *buf, int length, int id)
137 { 137 {
138 unsigned long flags; 138 unsigned long flags;
139 int timeout, bitout, sched, i, kick, s 139 int timeout, bitout, sched, i, kick, start, strobe;
140 unsigned char pending, u, v; 140 unsigned char pending, u, v;
141 141
142 i = -id; 142 i = -id; /* Don't care about data, only want ID */
143 timeout = id ? gameport_time(gameport, 143 timeout = id ? gameport_time(gameport, SW_TIMEOUT * 1000) : 0; /* Set up global timeout for ID packet */
144 kick = id ? gameport_time(gameport, SW 144 kick = id ? gameport_time(gameport, SW_KICK) : 0; /* Set up kick timeout for ID packet */
145 start = gameport_time(gameport, SW_STA 145 start = gameport_time(gameport, SW_START);
146 strobe = gameport_time(gameport, SW_ST 146 strobe = gameport_time(gameport, SW_STROBE);
147 bitout = start; 147 bitout = start;
148 pending = 0; 148 pending = 0;
149 sched = 0; 149 sched = 0;
150 150
151 local_irq_save(flags); 151 local_irq_save(flags); /* Quiet, please */
152 152
153 gameport_trigger(gameport); 153 gameport_trigger(gameport); /* Trigger */
154 v = gameport_read(gameport); 154 v = gameport_read(gameport);
155 155
156 do { 156 do {
157 bitout--; 157 bitout--;
158 u = v; 158 u = v;
159 v = gameport_read(gameport); 159 v = gameport_read(gameport);
160 } while (!(~v & u & 0x10) && (bitout > 160 } while (!(~v & u & 0x10) && (bitout > 0)); /* Wait for first falling edge on clock */
161 161
162 if (bitout > 0) 162 if (bitout > 0)
163 bitout = strobe; 163 bitout = strobe; /* Extend time if not timed out */
164 164
165 while ((timeout > 0 || bitout > 0) && 165 while ((timeout > 0 || bitout > 0) && (i < length)) {
166 166
167 timeout--; 167 timeout--;
168 bitout--; 168 bitout--; /* Decrement timers */
169 sched--; 169 sched--;
170 170
171 u = v; 171 u = v;
172 v = gameport_read(gameport); 172 v = gameport_read(gameport);
173 173
174 if ((~u & v & 0x10) && (bitout 174 if ((~u & v & 0x10) && (bitout > 0)) { /* Rising edge on clock - data bit */
175 if (i >= 0) 175 if (i >= 0) /* Want this data */
176 buf[i] = v >> 176 buf[i] = v >> 5; /* Store it */
177 i++; 177 i++; /* Advance index */
178 bitout = strobe; 178 bitout = strobe; /* Extend timeout for next bit */
179 } 179 }
180 180
181 if (kick && (~v & u & 0x01)) { 181 if (kick && (~v & u & 0x01)) { /* Falling edge on axis 0 */
182 sched = kick; 182 sched = kick; /* Schedule second trigger */
183 kick = 0; 183 kick = 0; /* Don't schedule next time on falling edge */
184 pending = 1; 184 pending = 1; /* Mark schedule */
185 } 185 }
186 186
187 if (pending && sched < 0 && (i 187 if (pending && sched < 0 && (i > -SW_END)) { /* Second trigger time */
188 gameport_trigger(gamep 188 gameport_trigger(gameport); /* Trigger */
189 bitout = start; 189 bitout = start; /* Long bit timeout */
190 pending = 0; 190 pending = 0; /* Unmark schedule */
191 timeout = 0; 191 timeout = 0; /* Switch from global to bit timeouts */
192 } 192 }
193 } 193 }
194 194
195 local_irq_restore(flags); 195 local_irq_restore(flags); /* Done - relax */
196 196
197 #ifdef SW_DEBUG_DATA 197 #ifdef SW_DEBUG_DATA
198 { 198 {
199 int j; 199 int j;
200 printk(KERN_DEBUG "sidewinder. 200 printk(KERN_DEBUG "sidewinder.c: Read %d triplets. [", i);
201 for (j = 0; j < i; j++) printk 201 for (j = 0; j < i; j++) printk("%d", buf[j]);
202 printk("]\n"); 202 printk("]\n");
203 } 203 }
204 #endif 204 #endif
205 205
206 return i; 206 return i;
207 } 207 }
208 208
209 /* 209 /*
210 * sw_get_bits() and GB() compose bits from th 210 * sw_get_bits() and GB() compose bits from the triplet buffer into a __u64.
211 * Parameter 'pos' is bit number inside packet 211 * Parameter 'pos' is bit number inside packet where to start at, 'num' is number
212 * of bits to be read, 'shift' is offset in th 212 * of bits to be read, 'shift' is offset in the resulting __u64 to start at, bits
213 * is number of bits per triplet. 213 * is number of bits per triplet.
214 */ 214 */
215 215
216 #define GB(pos,num) sw_get_bits(buf, pos, num, 216 #define GB(pos,num) sw_get_bits(buf, pos, num, sw->bits)
217 217
218 static __u64 sw_get_bits(unsigned char *buf, i 218 static __u64 sw_get_bits(unsigned char *buf, int pos, int num, char bits)
219 { 219 {
220 __u64 data = 0; 220 __u64 data = 0;
221 int tri = pos % bits; 221 int tri = pos % bits; /* Start position */
222 int i = pos / bits; 222 int i = pos / bits;
223 int bit = 0; 223 int bit = 0;
224 224
225 while (num--) { 225 while (num--) {
226 data |= (__u64)((buf[i] >> tri 226 data |= (__u64)((buf[i] >> tri++) & 1) << bit++; /* Transfer bit */
227 if (tri == bits) { 227 if (tri == bits) {
228 i++; 228 i++; /* Next triplet */
229 tri = 0; 229 tri = 0;
230 } 230 }
231 } 231 }
232 232
233 return data; 233 return data;
234 } 234 }
235 235
236 /* 236 /*
237 * sw_init_digital() initializes a SideWinder 237 * sw_init_digital() initializes a SideWinder 3D Pro joystick
238 * into digital mode. 238 * into digital mode.
239 */ 239 */
240 240
241 static void sw_init_digital(struct gameport *g 241 static void sw_init_digital(struct gameport *gameport)
242 { 242 {
243 int seq[] = { 140, 140+725, 140+300, 0 243 int seq[] = { 140, 140+725, 140+300, 0 };
244 unsigned long flags; 244 unsigned long flags;
245 int i, t; 245 int i, t;
246 246
247 local_irq_save(flags); 247 local_irq_save(flags);
248 248
249 i = 0; 249 i = 0;
250 do { 250 do {
251 gameport_trigger(gameport); 251 gameport_trigger(gameport); /* Trigger */
252 t = gameport_time(gameport, SW 252 t = gameport_time(gameport, SW_TIMEOUT * 1000);
253 while ((gameport_read(gameport 253 while ((gameport_read(gameport) & 1) && t) t--; /* Wait for axis to fall back to 0 */
254 udelay(seq[i]); 254 udelay(seq[i]); /* Delay magic time */
255 } while (seq[++i]); 255 } while (seq[++i]);
256 256
257 gameport_trigger(gameport); 257 gameport_trigger(gameport); /* Last trigger */
258 258
259 local_irq_restore(flags); 259 local_irq_restore(flags);
260 } 260 }
261 261
262 /* 262 /*
263 * sw_parity() computes parity of __u64 263 * sw_parity() computes parity of __u64
264 */ 264 */
265 265
266 static int sw_parity(__u64 t) 266 static int sw_parity(__u64 t)
267 { 267 {
268 int x = t ^ (t >> 32); 268 int x = t ^ (t >> 32);
269 269
270 x ^= x >> 16; 270 x ^= x >> 16;
271 x ^= x >> 8; 271 x ^= x >> 8;
272 x ^= x >> 4; 272 x ^= x >> 4;
273 x ^= x >> 2; 273 x ^= x >> 2;
274 x ^= x >> 1; 274 x ^= x >> 1;
275 return x & 1; 275 return x & 1;
276 } 276 }
277 277
278 /* 278 /*
279 * sw_ccheck() checks synchronization bits and 279 * sw_ccheck() checks synchronization bits and computes checksum of nibbles.
280 */ 280 */
281 281
282 static int sw_check(__u64 t) 282 static int sw_check(__u64 t)
283 { 283 {
284 unsigned char sum = 0; 284 unsigned char sum = 0;
285 285
286 if ((t & 0x8080808080808080ULL) ^ 0x80 286 if ((t & 0x8080808080808080ULL) ^ 0x80) /* Sync */
287 return -1; 287 return -1;
288 288
289 while (t) { 289 while (t) { /* Sum */
290 sum += t & 0xf; 290 sum += t & 0xf;
291 t >>= 4; 291 t >>= 4;
292 } 292 }
293 293
294 return sum & 0xf; 294 return sum & 0xf;
295 } 295 }
296 296
297 /* 297 /*
298 * sw_parse() analyzes SideWinder joystick dat 298 * sw_parse() analyzes SideWinder joystick data, and writes the results into
299 * the axes and buttons arrays. 299 * the axes and buttons arrays.
300 */ 300 */
301 301
302 static int sw_parse(unsigned char *buf, struct 302 static int sw_parse(unsigned char *buf, struct sw *sw)
303 { 303 {
304 int hat, i, j; 304 int hat, i, j;
305 struct input_dev *dev; 305 struct input_dev *dev;
306 306
307 switch (sw->type) { 307 switch (sw->type) {
308 308
309 case SW_ID_3DP: 309 case SW_ID_3DP:
310 310
311 if (sw_check(GB(0,64)) 311 if (sw_check(GB(0,64)) || (hat = (GB(6,1) << 3) | GB(60,3)) > 8)
312 return -1; 312 return -1;
313 313
314 dev = sw->dev[0]; 314 dev = sw->dev[0];
315 315
316 input_report_abs(dev, 316 input_report_abs(dev, ABS_X, (GB( 3,3) << 7) | GB(16,7));
317 input_report_abs(dev, 317 input_report_abs(dev, ABS_Y, (GB( 0,3) << 7) | GB(24,7));
318 input_report_abs(dev, 318 input_report_abs(dev, ABS_RZ, (GB(35,2) << 7) | GB(40,7));
319 input_report_abs(dev, 319 input_report_abs(dev, ABS_THROTTLE, (GB(32,3) << 7) | GB(48,7));
320 320
321 input_report_abs(dev, 321 input_report_abs(dev, ABS_HAT0X, sw_hat_to_axis[hat].x);
322 input_report_abs(dev, 322 input_report_abs(dev, ABS_HAT0Y, sw_hat_to_axis[hat].y);
323 323
324 for (j = 0; j < 7; j++ 324 for (j = 0; j < 7; j++)
325 input_report_k 325 input_report_key(dev, sw_btn[SW_ID_3DP][j], !GB(j+8,1));
326 326
327 input_report_key(dev, 327 input_report_key(dev, BTN_BASE4, !GB(38,1));
328 input_report_key(dev, 328 input_report_key(dev, BTN_BASE5, !GB(37,1));
329 329
330 input_sync(dev); 330 input_sync(dev);
331 331
332 return 0; 332 return 0;
333 333
334 case SW_ID_GP: 334 case SW_ID_GP:
335 335
336 for (i = 0; i < sw->nu 336 for (i = 0; i < sw->number; i ++) {
337 337
338 if (sw_parity( 338 if (sw_parity(GB(i*15,15)))
339 return 339 return -1;
340 340
341 input_report_a 341 input_report_abs(sw->dev[i], ABS_X, GB(i*15+3,1) - GB(i*15+2,1));
342 input_report_a 342 input_report_abs(sw->dev[i], ABS_Y, GB(i*15+0,1) - GB(i*15+1,1));
343 343
344 for (j = 0; j 344 for (j = 0; j < 10; j++)
345 input_ 345 input_report_key(sw->dev[i], sw_btn[SW_ID_GP][j], !GB(i*15+j+4,1));
346 346
347 input_sync(sw- 347 input_sync(sw->dev[i]);
348 } 348 }
349 349
350 return 0; 350 return 0;
351 351
352 case SW_ID_PP: 352 case SW_ID_PP:
353 case SW_ID_FFP: 353 case SW_ID_FFP:
354 354
355 if (!sw_parity(GB(0,48 355 if (!sw_parity(GB(0,48)) || (hat = GB(42,4)) > 8)
356 return -1; 356 return -1;
357 357
358 dev = sw->dev[0]; 358 dev = sw->dev[0];
359 input_report_abs(dev, 359 input_report_abs(dev, ABS_X, GB( 9,10));
360 input_report_abs(dev, 360 input_report_abs(dev, ABS_Y, GB(19,10));
361 input_report_abs(dev, 361 input_report_abs(dev, ABS_RZ, GB(36, 6));
362 input_report_abs(dev, 362 input_report_abs(dev, ABS_THROTTLE, GB(29, 7));
363 363
364 input_report_abs(dev, 364 input_report_abs(dev, ABS_HAT0X, sw_hat_to_axis[hat].x);
365 input_report_abs(dev, 365 input_report_abs(dev, ABS_HAT0Y, sw_hat_to_axis[hat].y);
366 366
367 for (j = 0; j < 9; j++ 367 for (j = 0; j < 9; j++)
368 input_report_k 368 input_report_key(dev, sw_btn[SW_ID_PP][j], !GB(j,1));
369 369
370 input_sync(dev); 370 input_sync(dev);
371 371
372 return 0; 372 return 0;
373 373
374 case SW_ID_FSP: 374 case SW_ID_FSP:
375 375
376 if (!sw_parity(GB(0,43 376 if (!sw_parity(GB(0,43)) || (hat = GB(28,4)) > 8)
377 return -1; 377 return -1;
378 378
379 dev = sw->dev[0]; 379 dev = sw->dev[0];
380 input_report_abs(dev, 380 input_report_abs(dev, ABS_X, GB( 0,10));
381 input_report_abs(dev, 381 input_report_abs(dev, ABS_Y, GB(16,10));
382 input_report_abs(dev, 382 input_report_abs(dev, ABS_THROTTLE, GB(32, 6));
383 383
384 input_report_abs(dev, 384 input_report_abs(dev, ABS_HAT0X, sw_hat_to_axis[hat].x);
385 input_report_abs(dev, 385 input_report_abs(dev, ABS_HAT0Y, sw_hat_to_axis[hat].y);
386 386
387 for (j = 0; j < 6; j++ 387 for (j = 0; j < 6; j++)
388 input_report_k 388 input_report_key(dev, sw_btn[SW_ID_FSP][j], !GB(j+10,1));
389 389
390 input_report_key(dev, 390 input_report_key(dev, BTN_TR, !GB(26,1));
391 input_report_key(dev, 391 input_report_key(dev, BTN_START, !GB(27,1));
392 input_report_key(dev, 392 input_report_key(dev, BTN_MODE, !GB(38,1));
393 input_report_key(dev, 393 input_report_key(dev, BTN_SELECT, !GB(39,1));
394 394
395 input_sync(dev); 395 input_sync(dev);
396 396
397 return 0; 397 return 0;
398 398
399 case SW_ID_FFW: 399 case SW_ID_FFW:
400 400
401 if (!sw_parity(GB(0,33 401 if (!sw_parity(GB(0,33)))
402 return -1; 402 return -1;
403 403
404 dev = sw->dev[0]; 404 dev = sw->dev[0];
405 input_report_abs(dev, 405 input_report_abs(dev, ABS_RX, GB( 0,10));
406 input_report_abs(dev, 406 input_report_abs(dev, ABS_RUDDER, GB(10, 6));
407 input_report_abs(dev, 407 input_report_abs(dev, ABS_THROTTLE, GB(16, 6));
408 408
409 for (j = 0; j < 8; j++ 409 for (j = 0; j < 8; j++)
410 input_report_k 410 input_report_key(dev, sw_btn[SW_ID_FFW][j], !GB(j+22,1));
411 411
412 input_sync(dev); 412 input_sync(dev);
413 413
414 return 0; 414 return 0;
415 } 415 }
416 416
417 return -1; 417 return -1;
418 } 418 }
419 419
420 /* 420 /*
421 * sw_read() reads SideWinder joystick data, a 421 * sw_read() reads SideWinder joystick data, and reinitializes
422 * the joystick in case of persistent problems 422 * the joystick in case of persistent problems. This is the function that is
423 * called from the generic code to poll the jo 423 * called from the generic code to poll the joystick.
424 */ 424 */
425 425
426 static int sw_read(struct sw *sw) 426 static int sw_read(struct sw *sw)
427 { 427 {
428 unsigned char buf[SW_LENGTH]; 428 unsigned char buf[SW_LENGTH];
429 int i; 429 int i;
430 430
431 i = sw_read_packet(sw->gameport, buf, 431 i = sw_read_packet(sw->gameport, buf, sw->length, 0);
432 432
433 if (sw->type == SW_ID_3DP && sw->lengt 433 if (sw->type == SW_ID_3DP && sw->length == 66 && i != 66) { /* Broken packet, try to fix */
434 434
435 if (i == 64 && !sw_check(sw_ge 435 if (i == 64 && !sw_check(sw_get_bits(buf,0,64,1))) { /* Last init failed, 1 bit mode */
436 printk(KERN_WARNING "s 436 printk(KERN_WARNING "sidewinder.c: Joystick in wrong mode on %s"
437 " - going to r 437 " - going to reinitialize.\n", sw->gameport->phys);
438 sw->fail = SW_FAIL; 438 sw->fail = SW_FAIL; /* Reinitialize */
439 i = 128; 439 i = 128; /* Bogus value */
440 } 440 }
441 441
442 if (i < 66 && GB(0,64) == GB(i 442 if (i < 66 && GB(0,64) == GB(i*3-66,64)) /* 1 == 3 */
443 i = 66; 443 i = 66; /* Everything is fine */
444 444
445 if (i < 66 && GB(0,64) == GB(6 445 if (i < 66 && GB(0,64) == GB(66,64)) /* 1 == 2 */
446 i = 66; 446 i = 66; /* Everything is fine */
447 447
448 if (i < 66 && GB(i*3-132,64) = 448 if (i < 66 && GB(i*3-132,64) == GB(i*3-66,64)) { /* 2 == 3 */
449 memmove(buf, buf + i - 449 memmove(buf, buf + i - 22, 22); /* Move data */
450 i = 66; 450 i = 66; /* Carry on */
451 } 451 }
452 } 452 }
453 453
454 if (i == sw->length && !sw_parse(buf, 454 if (i == sw->length && !sw_parse(buf, sw)) { /* Parse data */
455 455
456 sw->fail = 0; 456 sw->fail = 0;
457 sw->ok++; 457 sw->ok++;
458 458
459 if (sw->type == SW_ID_3DP && s 459 if (sw->type == SW_ID_3DP && sw->length == 66 /* Many packets OK */
460 && sw->ok > SW_OK) { 460 && sw->ok > SW_OK) {
461 461
462 printk(KERN_INFO "side 462 printk(KERN_INFO "sidewinder.c: No more trouble on %s"
463 " - enabling o 463 " - enabling optimization again.\n", sw->gameport->phys);
464 sw->length = 22; 464 sw->length = 22;
465 } 465 }
466 466
467 return 0; 467 return 0;
468 } 468 }
469 469
470 sw->ok = 0; 470 sw->ok = 0;
471 sw->fail++; 471 sw->fail++;
472 472
473 if (sw->type == SW_ID_3DP && sw->lengt 473 if (sw->type == SW_ID_3DP && sw->length == 22 && sw->fail > SW_BAD) { /* Consecutive bad packets */
474 474
475 printk(KERN_INFO "sidewinder.c 475 printk(KERN_INFO "sidewinder.c: Many bit errors on %s"
476 " - disabling optimiza 476 " - disabling optimization.\n", sw->gameport->phys);
477 sw->length = 66; 477 sw->length = 66;
478 } 478 }
479 479
480 if (sw->fail < SW_FAIL) 480 if (sw->fail < SW_FAIL)
481 return -1; 481 return -1; /* Not enough, don't reinitialize yet */
482 482
483 printk(KERN_WARNING "sidewinder.c: Too 483 printk(KERN_WARNING "sidewinder.c: Too many bit errors on %s"
484 " - reinitializing joystick.\n 484 " - reinitializing joystick.\n", sw->gameport->phys);
485 485
486 if (!i && sw->type == SW_ID_3DP) { 486 if (!i && sw->type == SW_ID_3DP) { /* 3D Pro can be in analog mode */
487 mdelay(3 * SW_TIMEOUT); 487 mdelay(3 * SW_TIMEOUT);
488 sw_init_digital(sw->gameport); 488 sw_init_digital(sw->gameport);
489 } 489 }
490 490
491 mdelay(SW_TIMEOUT); 491 mdelay(SW_TIMEOUT);
492 i = sw_read_packet(sw->gameport, buf, 492 i = sw_read_packet(sw->gameport, buf, SW_LENGTH, 0); /* Read normal data packet */
493 mdelay(SW_TIMEOUT); 493 mdelay(SW_TIMEOUT);
494 sw_read_packet(sw->gameport, buf, SW_L 494 sw_read_packet(sw->gameport, buf, SW_LENGTH, i); /* Read ID packet, this initializes the stick */
495 495
496 sw->fail = SW_FAIL; 496 sw->fail = SW_FAIL;
497 497
498 return -1; 498 return -1;
499 } 499 }
500 500
501 static void sw_poll(struct gameport *gameport) 501 static void sw_poll(struct gameport *gameport)
502 { 502 {
503 struct sw *sw = gameport_get_drvdata(g 503 struct sw *sw = gameport_get_drvdata(gameport);
504 504
505 sw->reads++; 505 sw->reads++;
506 if (sw_read(sw)) 506 if (sw_read(sw))
507 sw->bads++; 507 sw->bads++;
508 } 508 }
509 509
510 static int sw_open(struct input_dev *dev) 510 static int sw_open(struct input_dev *dev)
511 { 511 {
512 struct sw *sw = input_get_drvdata(dev) 512 struct sw *sw = input_get_drvdata(dev);
513 513
514 gameport_start_polling(sw->gameport); 514 gameport_start_polling(sw->gameport);
515 return 0; 515 return 0;
516 } 516 }
517 517
518 static void sw_close(struct input_dev *dev) 518 static void sw_close(struct input_dev *dev)
519 { 519 {
520 struct sw *sw = input_get_drvdata(dev) 520 struct sw *sw = input_get_drvdata(dev);
521 521
522 gameport_stop_polling(sw->gameport); 522 gameport_stop_polling(sw->gameport);
523 } 523 }
524 524
525 /* 525 /*
526 * sw_print_packet() prints the contents of a 526 * sw_print_packet() prints the contents of a SideWinder packet.
527 */ 527 */
528 528
529 static void sw_print_packet(char *name, int le 529 static void sw_print_packet(char *name, int length, unsigned char *buf, char bits)
530 { 530 {
531 int i; 531 int i;
532 532
533 printk(KERN_INFO "sidewinder.c: %s pac 533 printk(KERN_INFO "sidewinder.c: %s packet, %d bits. [", name, length);
534 for (i = (((length + 3) >> 2) - 1); i 534 for (i = (((length + 3) >> 2) - 1); i >= 0; i--)
535 printk("%x", (int)sw_get_bits( 535 printk("%x", (int)sw_get_bits(buf, i << 2, 4, bits));
536 printk("]\n"); 536 printk("]\n");
537 } 537 }
538 538
539 /* 539 /*
540 * sw_3dp_id() translates the 3DP id into a hu 540 * sw_3dp_id() translates the 3DP id into a human legible string.
541 * Unfortunately I don't know how to do this f 541 * Unfortunately I don't know how to do this for the other SW types.
542 */ 542 */
543 543
544 static void sw_3dp_id(unsigned char *buf, char 544 static void sw_3dp_id(unsigned char *buf, char *comment, size_t size)
545 { 545 {
546 int i; 546 int i;
547 char pnp[8], rev[9]; 547 char pnp[8], rev[9];
548 548
549 for (i = 0; i < 7; i++) 549 for (i = 0; i < 7; i++) /* ASCII PnP ID */
550 pnp[i] = sw_get_bits(buf, 24+8 550 pnp[i] = sw_get_bits(buf, 24+8*i, 8, 1);
551 551
552 for (i = 0; i < 8; i++) 552 for (i = 0; i < 8; i++) /* ASCII firmware revision */
553 rev[i] = sw_get_bits(buf, 88+8 553 rev[i] = sw_get_bits(buf, 88+8*i, 8, 1);
554 554
555 pnp[7] = rev[8] = 0; 555 pnp[7] = rev[8] = 0;
556 556
557 snprintf(comment, size, " [PnP %d.%02d 557 snprintf(comment, size, " [PnP %d.%02d id %s rev %s]",
558 (int) ((sw_get_bits(buf, 8, 6, 558 (int) ((sw_get_bits(buf, 8, 6, 1) << 6) | /* Two 6-bit values */
559 sw_get_bits(buf, 16, 6 559 sw_get_bits(buf, 16, 6, 1)) / 100,
560 (int) ((sw_get_bits(buf, 8, 6, 560 (int) ((sw_get_bits(buf, 8, 6, 1) << 6) |
561 sw_get_bits(buf, 16, 6 561 sw_get_bits(buf, 16, 6, 1)) % 100,
562 pnp, rev); 562 pnp, rev);
563 } 563 }
564 564
565 /* 565 /*
566 * sw_guess_mode() checks the upper two button 566 * sw_guess_mode() checks the upper two button bits for toggling -
567 * indication of that the joystick is in 3-bit 567 * indication of that the joystick is in 3-bit mode. This is documented
568 * behavior for 3DP ID packet, and for example 568 * behavior for 3DP ID packet, and for example the FSP does this in
569 * normal packets instead. Fun ... 569 * normal packets instead. Fun ...
570 */ 570 */
571 571
572 static int sw_guess_mode(unsigned char *buf, i 572 static int sw_guess_mode(unsigned char *buf, int len)
573 { 573 {
574 int i; 574 int i;
575 unsigned char xor = 0; 575 unsigned char xor = 0;
576 576
577 for (i = 1; i < len; i++) 577 for (i = 1; i < len; i++)
578 xor |= (buf[i - 1] ^ buf[i]) & 578 xor |= (buf[i - 1] ^ buf[i]) & 6;
579 579
580 return !!xor * 2 + 1; 580 return !!xor * 2 + 1;
581 } 581 }
582 582
583 /* 583 /*
584 * sw_connect() probes for SideWinder type joy 584 * sw_connect() probes for SideWinder type joysticks.
585 */ 585 */
586 586
587 static int sw_connect(struct gameport *gamepor 587 static int sw_connect(struct gameport *gameport, struct gameport_driver *drv)
588 { 588 {
589 struct sw *sw; 589 struct sw *sw;
590 struct input_dev *input_dev; 590 struct input_dev *input_dev;
591 int i, j, k, l; 591 int i, j, k, l;
592 int err = 0; 592 int err = 0;
593 unsigned char *buf = NULL; /* [SW 593 unsigned char *buf = NULL; /* [SW_LENGTH] */
594 unsigned char *idbuf = NULL; /* [SW 594 unsigned char *idbuf = NULL; /* [SW_LENGTH] */
595 unsigned char m = 1; 595 unsigned char m = 1;
596 char comment[40]; 596 char comment[40];
597 597
598 comment[0] = 0; 598 comment[0] = 0;
599 599
600 sw = kzalloc(sizeof(struct sw), GFP_KE 600 sw = kzalloc(sizeof(struct sw), GFP_KERNEL);
601 buf = kmalloc(SW_LENGTH, GFP_KERNEL); 601 buf = kmalloc(SW_LENGTH, GFP_KERNEL);
602 idbuf = kmalloc(SW_LENGTH, GFP_KERNEL) 602 idbuf = kmalloc(SW_LENGTH, GFP_KERNEL);
603 if (!sw || !buf || !idbuf) { 603 if (!sw || !buf || !idbuf) {
604 err = -ENOMEM; 604 err = -ENOMEM;
605 goto fail1; 605 goto fail1;
606 } 606 }
607 607
608 sw->gameport = gameport; 608 sw->gameport = gameport;
609 609
610 gameport_set_drvdata(gameport, sw); 610 gameport_set_drvdata(gameport, sw);
611 611
612 err = gameport_open(gameport, drv, GAM 612 err = gameport_open(gameport, drv, GAMEPORT_MODE_RAW);
613 if (err) 613 if (err)
614 goto fail1; 614 goto fail1;
615 615
616 dbg("Init 0: Opened %s, io %#x, speed 616 dbg("Init 0: Opened %s, io %#x, speed %d",
617 gameport->phys, gameport->io, 617 gameport->phys, gameport->io, gameport->speed);
618 618
619 i = sw_read_packet(gameport, buf, SW_L 619 i = sw_read_packet(gameport, buf, SW_LENGTH, 0); /* Read normal packet */
620 msleep(SW_TIMEOUT); 620 msleep(SW_TIMEOUT);
621 dbg("Init 1: Mode %d. Length %d.", m , 621 dbg("Init 1: Mode %d. Length %d.", m , i);
622 622
623 if (!i) { 623 if (!i) { /* No data. 3d Pro analog mode? */
624 sw_init_digital(gameport); 624 sw_init_digital(gameport); /* Switch to digital */
625 msleep(SW_TIMEOUT); 625 msleep(SW_TIMEOUT);
626 i = sw_read_packet(gameport, b 626 i = sw_read_packet(gameport, buf, SW_LENGTH, 0); /* Retry reading packet */
627 msleep(SW_TIMEOUT); 627 msleep(SW_TIMEOUT);
628 dbg("Init 1b: Length %d.", i); 628 dbg("Init 1b: Length %d.", i);
629 if (!i) { 629 if (!i) { /* No data -> FAIL */
630 err = -ENODEV; 630 err = -ENODEV;
631 goto fail2; 631 goto fail2;
632 } 632 }
633 } 633 }
634 634
635 j = sw_read_packet(gameport, idbuf, SW 635 j = sw_read_packet(gameport, idbuf, SW_LENGTH, i); /* Read ID. This initializes the stick */
636 m |= sw_guess_mode(idbuf, j); 636 m |= sw_guess_mode(idbuf, j); /* ID packet should carry mode info [3DP] */
637 dbg("Init 2: Mode %d. ID Length %d.", 637 dbg("Init 2: Mode %d. ID Length %d.", m, j);
638 638
639 if (j <= 0) { 639 if (j <= 0) { /* Read ID failed. Happens in 1-bit mode on PP */
640 msleep(SW_TIMEOUT); 640 msleep(SW_TIMEOUT);
641 i = sw_read_packet(gameport, b 641 i = sw_read_packet(gameport, buf, SW_LENGTH, 0); /* Retry reading packet */
642 m |= sw_guess_mode(buf, i); 642 m |= sw_guess_mode(buf, i);
643 dbg("Init 2b: Mode %d. Length 643 dbg("Init 2b: Mode %d. Length %d.", m, i);
644 if (!i) { 644 if (!i) {
645 err = -ENODEV; 645 err = -ENODEV;
646 goto fail2; 646 goto fail2;
647 } 647 }
648 msleep(SW_TIMEOUT); 648 msleep(SW_TIMEOUT);
649 j = sw_read_packet(gameport, i 649 j = sw_read_packet(gameport, idbuf, SW_LENGTH, i); /* Retry reading ID */
650 dbg("Init 2c: ID Length %d.", 650 dbg("Init 2c: ID Length %d.", j);
651 } 651 }
652 652
653 sw->type = -1; 653 sw->type = -1;
654 k = SW_FAIL; 654 k = SW_FAIL; /* Try SW_FAIL times */
655 l = 0; 655 l = 0;
656 656
657 do { 657 do {
658 k--; 658 k--;
659 msleep(SW_TIMEOUT); 659 msleep(SW_TIMEOUT);
660 i = sw_read_packet(gameport, b 660 i = sw_read_packet(gameport, buf, SW_LENGTH, 0); /* Read data packet */
661 dbg("Init 3: Mode %d. Length % 661 dbg("Init 3: Mode %d. Length %d. Last %d. Tries %d.", m, i, l, k);
662 662
663 if (i > l) { 663 if (i > l) { /* Longer? As we can only lose bits, it makes */
664 664 /* no sense to try detection for a packet shorter */
665 l = i; 665 l = i; /* than the previous one */
666 666
667 sw->number = 1; 667 sw->number = 1;
668 sw->gameport = gamepor 668 sw->gameport = gameport;
669 sw->length = i; 669 sw->length = i;
670 sw->bits = m; 670 sw->bits = m;
671 671
672 dbg("Init 3a: Case %d. 672 dbg("Init 3a: Case %d.\n", i * m);
673 673
674 switch (i * m) { 674 switch (i * m) {
675 case 60: 675 case 60:
676 sw->nu 676 sw->number++;
677 case 45: 677 case 45: /* Ambiguous packet length */
678 if (j 678 if (j <= 40) { /* ID length less or eq 40 -> FSP */
679 case 43: 679 case 43:
680 680 sw->type = SW_ID_FSP;
681 681 break;
682 } 682 }
683 sw->nu 683 sw->number++;
684 case 30: 684 case 30:
685 sw->nu 685 sw->number++;
686 case 15: 686 case 15:
687 sw->ty 687 sw->type = SW_ID_GP;
688 break; 688 break;
689 case 33: 689 case 33:
690 case 31: 690 case 31:
691 sw->ty 691 sw->type = SW_ID_FFW;
692 break; 692 break;
693 case 48: 693 case 48: /* Ambiguous */
694 if (j 694 if (j == 14) { /* ID length 14*3 -> FFP */
695 695 sw->type = SW_ID_FFP;
696 696 sprintf(comment, " [AC %s]", sw_get_bits(idbuf,38,1,3) ? "off" : "on");
697 } else 697 } else
698 698 sw->type = SW_ID_PP;
699 break; 699 break;
700 case 66: 700 case 66:
701 sw->bi 701 sw->bits = 3;
702 case 198: 702 case 198:
703 sw->le 703 sw->length = 22;
704 case 64: 704 case 64:
705 sw->ty 705 sw->type = SW_ID_3DP;
706 if (j 706 if (j == 160)
707 707 sw_3dp_id(idbuf, comment, sizeof(comment));
708 break; 708 break;
709 } 709 }
710 } 710 }
711 711
712 } while (k && sw->type == -1); 712 } while (k && sw->type == -1);
713 713
714 if (sw->type == -1) { 714 if (sw->type == -1) {
715 printk(KERN_WARNING "sidewinde 715 printk(KERN_WARNING "sidewinder.c: unknown joystick device detected "
716 "on %s, contact <vojte 716 "on %s, contact <vojtech@ucw.cz>\n", gameport->phys);
717 sw_print_packet("ID", j * 3, i 717 sw_print_packet("ID", j * 3, idbuf, 3);
718 sw_print_packet("Data", i * m, 718 sw_print_packet("Data", i * m, buf, m);
719 err = -ENODEV; 719 err = -ENODEV;
720 goto fail2; 720 goto fail2;
721 } 721 }
722 722
723 #ifdef SW_DEBUG 723 #ifdef SW_DEBUG
724 sw_print_packet("ID", j * 3, idbuf, 3) 724 sw_print_packet("ID", j * 3, idbuf, 3);
725 sw_print_packet("Data", i * m, buf, m) 725 sw_print_packet("Data", i * m, buf, m);
726 #endif 726 #endif
727 727
728 gameport_set_poll_handler(gameport, sw 728 gameport_set_poll_handler(gameport, sw_poll);
729 gameport_set_poll_interval(gameport, 2 729 gameport_set_poll_interval(gameport, 20);
730 730
731 k = i; 731 k = i;
732 l = j; 732 l = j;
733 733
734 for (i = 0; i < sw->number; i++) { 734 for (i = 0; i < sw->number; i++) {
735 int bits, code; 735 int bits, code;
736 736
737 snprintf(sw->name, sizeof(sw-> 737 snprintf(sw->name, sizeof(sw->name),
738 "Microsoft SideWinder 738 "Microsoft SideWinder %s", sw_name[sw->type]);
739 snprintf(sw->phys[i], sizeof(s 739 snprintf(sw->phys[i], sizeof(sw->phys[i]),
740 "%s/input%d", gamepor 740 "%s/input%d", gameport->phys, i);
741 741
742 sw->dev[i] = input_dev = input 742 sw->dev[i] = input_dev = input_allocate_device();
743 if (!input_dev) { 743 if (!input_dev) {
744 err = -ENOMEM; 744 err = -ENOMEM;
745 goto fail3; 745 goto fail3;
746 } 746 }
747 747
748 input_dev->name = sw->name; 748 input_dev->name = sw->name;
749 input_dev->phys = sw->phys[i]; 749 input_dev->phys = sw->phys[i];
750 input_dev->id.bustype = BUS_GA 750 input_dev->id.bustype = BUS_GAMEPORT;
751 input_dev->id.vendor = GAMEPOR 751 input_dev->id.vendor = GAMEPORT_ID_VENDOR_MICROSOFT;
752 input_dev->id.product = sw->ty 752 input_dev->id.product = sw->type;
753 input_dev->id.version = 0x0100 753 input_dev->id.version = 0x0100;
754 input_dev->dev.parent = &gamep 754 input_dev->dev.parent = &gameport->dev;
755 755
756 input_set_drvdata(input_dev, s 756 input_set_drvdata(input_dev, sw);
757 757
758 input_dev->open = sw_open; 758 input_dev->open = sw_open;
759 input_dev->close = sw_close; 759 input_dev->close = sw_close;
760 760
761 input_dev->evbit[0] = BIT_MASK 761 input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
762 762
763 for (j = 0; (bits = sw_bit[sw- 763 for (j = 0; (bits = sw_bit[sw->type][j]); j++) {
764 code = sw_abs[sw->type 764 code = sw_abs[sw->type][j];
765 set_bit(code, input_de 765 set_bit(code, input_dev->absbit);
766 input_dev->absmax[code 766 input_dev->absmax[code] = (1 << bits) - 1;
767 input_dev->absmin[code 767 input_dev->absmin[code] = (bits == 1) ? -1 : 0;
768 input_dev->absfuzz[cod 768 input_dev->absfuzz[code] = ((bits >> 1) >= 2) ? (1 << ((bits >> 1) - 2)) : 0;
769 if (code != ABS_THROTT 769 if (code != ABS_THROTTLE)
770 input_dev->abs 770 input_dev->absflat[code] = (bits >= 5) ? (1 << (bits - 5)) : 0;
771 } 771 }
772 772
773 for (j = 0; (code = sw_btn[sw- 773 for (j = 0; (code = sw_btn[sw->type][j]); j++)
774 set_bit(code, input_de 774 set_bit(code, input_dev->keybit);
775 775
776 dbg("%s%s [%d-bit id %d data % 776 dbg("%s%s [%d-bit id %d data %d]\n", sw->name, comment, m, l, k);
777 777
778 err = input_register_device(sw 778 err = input_register_device(sw->dev[i]);
779 if (err) 779 if (err)
780 goto fail4; 780 goto fail4;
781 } 781 }
782 782
783 out: kfree(buf); 783 out: kfree(buf);
784 kfree(idbuf); 784 kfree(idbuf);
785 785
786 return err; 786 return err;
787 787
788 fail4: input_free_device(sw->dev[i]); 788 fail4: input_free_device(sw->dev[i]);
789 fail3: while (--i >= 0) 789 fail3: while (--i >= 0)
790 input_unregister_device(sw->de 790 input_unregister_device(sw->dev[i]);
791 fail2: gameport_close(gameport); 791 fail2: gameport_close(gameport);
792 fail1: gameport_set_drvdata(gameport, NULL); 792 fail1: gameport_set_drvdata(gameport, NULL);
793 kfree(sw); 793 kfree(sw);
794 goto out; 794 goto out;
795 } 795 }
796 796
797 static void sw_disconnect(struct gameport *gam 797 static void sw_disconnect(struct gameport *gameport)
798 { 798 {
799 struct sw *sw = gameport_get_drvdata(g 799 struct sw *sw = gameport_get_drvdata(gameport);
800 int i; 800 int i;
801 801
802 for (i = 0; i < sw->number; i++) 802 for (i = 0; i < sw->number; i++)
803 input_unregister_device(sw->de 803 input_unregister_device(sw->dev[i]);
804 gameport_close(gameport); 804 gameport_close(gameport);
805 gameport_set_drvdata(gameport, NULL); 805 gameport_set_drvdata(gameport, NULL);
806 kfree(sw); 806 kfree(sw);
807 } 807 }
808 808
809 static struct gameport_driver sw_drv = { 809 static struct gameport_driver sw_drv = {
810 .driver = { 810 .driver = {
811 .name = "sidewinder", 811 .name = "sidewinder",
812 .owner = THIS_MODULE, 812 .owner = THIS_MODULE,
813 }, 813 },
814 .description = DRIVER_DESC, 814 .description = DRIVER_DESC,
815 .connect = sw_connect, 815 .connect = sw_connect,
816 .disconnect = sw_disconnect, 816 .disconnect = sw_disconnect,
817 }; 817 };
818 818
819 static int __init sw_init(void) 819 static int __init sw_init(void)
820 { 820 {
821 return gameport_register_driver(&sw_dr !! 821 gameport_register_driver(&sw_drv);
>> 822 return 0;
822 } 823 }
823 824
824 static void __exit sw_exit(void) 825 static void __exit sw_exit(void)
825 { 826 {
826 gameport_unregister_driver(&sw_drv); 827 gameport_unregister_driver(&sw_drv);
827 } 828 }
828 829
829 module_init(sw_init); 830 module_init(sw_init);
830 module_exit(sw_exit); 831 module_exit(sw_exit);
831 832
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