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authorDmitry Torokhov <dtor_core@ameritech.net>2006-01-29 21:51:31 -0500
committerDmitry Torokhov <dtor_core@ameritech.net>2006-01-29 21:51:31 -0500
commit84c61896bd756a440c54be07b6e97ad230f31a16 (patch)
tree549455a63ef49d763b7f96952b53bd52327acbeb /drivers
parent0399addd71565b27eae27821fa04dad44f8644fe (diff)
Input: db9 - fix possible crash with Saturn gamepads
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/input/joystick/db9.c70
1 files changed, 36 insertions, 34 deletions
diff --git a/drivers/input/joystick/db9.c b/drivers/input/joystick/db9.c
index 499344c72756..98479b82842d 100644
--- a/drivers/input/joystick/db9.c
+++ b/drivers/input/joystick/db9.c
@@ -275,68 +275,70 @@ static unsigned char db9_saturn_read_packet(struct parport *port, unsigned char
275/* 275/*
276 * db9_saturn_report() analyzes packet and reports. 276 * db9_saturn_report() analyzes packet and reports.
277 */ 277 */
278static int db9_saturn_report(unsigned char id, unsigned char data[60], struct input_dev *dev, int n, int max_pads) 278static int db9_saturn_report(unsigned char id, unsigned char data[60], struct input_dev *devs[], int n, int max_pads)
279{ 279{
280 struct input_dev *dev;
280 int tmp, i, j; 281 int tmp, i, j;
281 282
282 tmp = (id == 0x41) ? 60 : 10; 283 tmp = (id == 0x41) ? 60 : 10;
283 for (j = 0; (j < tmp) && (n < max_pads); j += 10, n++) { 284 for (j = 0; j < tmp && n < max_pads; j += 10, n++) {
285 dev = devs[n];
284 switch (data[j]) { 286 switch (data[j]) {
285 case 0x16: /* multi controller (analog 4 axis) */ 287 case 0x16: /* multi controller (analog 4 axis) */
286 input_report_abs(dev + n, db9_abs[5], data[j + 6]); 288 input_report_abs(dev, db9_abs[5], data[j + 6]);
287 case 0x15: /* mission stick (analog 3 axis) */ 289 case 0x15: /* mission stick (analog 3 axis) */
288 input_report_abs(dev + n, db9_abs[3], data[j + 4]); 290 input_report_abs(dev, db9_abs[3], data[j + 4]);
289 input_report_abs(dev + n, db9_abs[4], data[j + 5]); 291 input_report_abs(dev, db9_abs[4], data[j + 5]);
290 case 0x13: /* racing controller (analog 1 axis) */ 292 case 0x13: /* racing controller (analog 1 axis) */
291 input_report_abs(dev + n, db9_abs[2], data[j + 3]); 293 input_report_abs(dev, db9_abs[2], data[j + 3]);
292 case 0x34: /* saturn keyboard (udlr ZXC ASD QE Esc) */ 294 case 0x34: /* saturn keyboard (udlr ZXC ASD QE Esc) */
293 case 0x02: /* digital pad (digital 2 axis + buttons) */ 295 case 0x02: /* digital pad (digital 2 axis + buttons) */
294 input_report_abs(dev + n, db9_abs[0], !(data[j + 1] & 128) - !(data[j + 1] & 64)); 296 input_report_abs(dev, db9_abs[0], !(data[j + 1] & 128) - !(data[j + 1] & 64));
295 input_report_abs(dev + n, db9_abs[1], !(data[j + 1] & 32) - !(data[j + 1] & 16)); 297 input_report_abs(dev, db9_abs[1], !(data[j + 1] & 32) - !(data[j + 1] & 16));
296 for (i = 0; i < 9; i++) 298 for (i = 0; i < 9; i++)
297 input_report_key(dev + n, db9_cd32_btn[i], ~data[j + db9_saturn_byte[i]] & db9_saturn_mask[i]); 299 input_report_key(dev, db9_cd32_btn[i], ~data[j + db9_saturn_byte[i]] & db9_saturn_mask[i]);
298 break; 300 break;
299 case 0x19: /* mission stick x2 (analog 6 axis + buttons) */ 301 case 0x19: /* mission stick x2 (analog 6 axis + buttons) */
300 input_report_abs(dev + n, db9_abs[0], !(data[j + 1] & 128) - !(data[j + 1] & 64)); 302 input_report_abs(dev, db9_abs[0], !(data[j + 1] & 128) - !(data[j + 1] & 64));
301 input_report_abs(dev + n, db9_abs[1], !(data[j + 1] & 32) - !(data[j + 1] & 16)); 303 input_report_abs(dev, db9_abs[1], !(data[j + 1] & 32) - !(data[j + 1] & 16));
302 for (i = 0; i < 9; i++) 304 for (i = 0; i < 9; i++)
303 input_report_key(dev + n, db9_cd32_btn[i], ~data[j + db9_saturn_byte[i]] & db9_saturn_mask[i]); 305 input_report_key(dev, db9_cd32_btn[i], ~data[j + db9_saturn_byte[i]] & db9_saturn_mask[i]);
304 input_report_abs(dev + n, db9_abs[2], data[j + 3]); 306 input_report_abs(dev, db9_abs[2], data[j + 3]);
305 input_report_abs(dev + n, db9_abs[3], data[j + 4]); 307 input_report_abs(dev, db9_abs[3], data[j + 4]);
306 input_report_abs(dev + n, db9_abs[4], data[j + 5]); 308 input_report_abs(dev, db9_abs[4], data[j + 5]);
307 /* 309 /*
308 input_report_abs(dev + n, db9_abs[8], (data[j + 6] & 128 ? 0 : 1) - (data[j + 6] & 64 ? 0 : 1)); 310 input_report_abs(dev, db9_abs[8], (data[j + 6] & 128 ? 0 : 1) - (data[j + 6] & 64 ? 0 : 1));
309 input_report_abs(dev + n, db9_abs[9], (data[j + 6] & 32 ? 0 : 1) - (data[j + 6] & 16 ? 0 : 1)); 311 input_report_abs(dev, db9_abs[9], (data[j + 6] & 32 ? 0 : 1) - (data[j + 6] & 16 ? 0 : 1));
310 */ 312 */
311 input_report_abs(dev + n, db9_abs[6], data[j + 7]); 313 input_report_abs(dev, db9_abs[6], data[j + 7]);
312 input_report_abs(dev + n, db9_abs[7], data[j + 8]); 314 input_report_abs(dev, db9_abs[7], data[j + 8]);
313 input_report_abs(dev + n, db9_abs[5], data[j + 9]); 315 input_report_abs(dev, db9_abs[5], data[j + 9]);
314 break; 316 break;
315 case 0xd3: /* sankyo ff (analog 1 axis + stop btn) */ 317 case 0xd3: /* sankyo ff (analog 1 axis + stop btn) */
316 input_report_key(dev + n, BTN_A, data[j + 3] & 0x80); 318 input_report_key(dev, BTN_A, data[j + 3] & 0x80);
317 input_report_abs(dev + n, db9_abs[2], data[j + 3] & 0x7f); 319 input_report_abs(dev, db9_abs[2], data[j + 3] & 0x7f);
318 break; 320 break;
319 case 0xe3: /* shuttle mouse (analog 2 axis + buttons. signed value) */ 321 case 0xe3: /* shuttle mouse (analog 2 axis + buttons. signed value) */
320 input_report_key(dev + n, BTN_START, data[j + 1] & 0x08); 322 input_report_key(dev, BTN_START, data[j + 1] & 0x08);
321 input_report_key(dev + n, BTN_A, data[j + 1] & 0x04); 323 input_report_key(dev, BTN_A, data[j + 1] & 0x04);
322 input_report_key(dev + n, BTN_C, data[j + 1] & 0x02); 324 input_report_key(dev, BTN_C, data[j + 1] & 0x02);
323 input_report_key(dev + n, BTN_B, data[j + 1] & 0x01); 325 input_report_key(dev, BTN_B, data[j + 1] & 0x01);
324 input_report_abs(dev + n, db9_abs[2], data[j + 2] ^ 0x80); 326 input_report_abs(dev, db9_abs[2], data[j + 2] ^ 0x80);
325 input_report_abs(dev + n, db9_abs[3], (0xff-(data[j + 3] ^ 0x80))+1); /* */ 327 input_report_abs(dev, db9_abs[3], (0xff-(data[j + 3] ^ 0x80))+1); /* */
326 break; 328 break;
327 case 0xff: 329 case 0xff:
328 default: /* no pad */ 330 default: /* no pad */
329 input_report_abs(dev + n, db9_abs[0], 0); 331 input_report_abs(dev, db9_abs[0], 0);
330 input_report_abs(dev + n, db9_abs[1], 0); 332 input_report_abs(dev, db9_abs[1], 0);
331 for (i = 0; i < 9; i++) 333 for (i = 0; i < 9; i++)
332 input_report_key(dev + n, db9_cd32_btn[i], 0); 334 input_report_key(dev, db9_cd32_btn[i], 0);
333 break; 335 break;
334 } 336 }
335 } 337 }
336 return n; 338 return n;
337} 339}
338 340
339static int db9_saturn(int mode, struct parport *port, struct input_dev *dev) 341static int db9_saturn(int mode, struct parport *port, struct input_dev *devs[])
340{ 342{
341 unsigned char id, data[60]; 343 unsigned char id, data[60];
342 int type, n, max_pads; 344 int type, n, max_pads;
@@ -361,7 +363,7 @@ static int db9_saturn(int mode, struct parport *port, struct input_dev *dev)
361 max_pads = min(db9_modes[mode].n_pads, DB9_MAX_DEVICES); 363 max_pads = min(db9_modes[mode].n_pads, DB9_MAX_DEVICES);
362 for (tmp = 0, i = 0; i < n; i++) { 364 for (tmp = 0, i = 0; i < n; i++) {
363 id = db9_saturn_read_packet(port, data, type + i, 1); 365 id = db9_saturn_read_packet(port, data, type + i, 1);
364 tmp = db9_saturn_report(id, data, dev, tmp, max_pads); 366 tmp = db9_saturn_report(id, data, devs, tmp, max_pads);
365 } 367 }
366 return 0; 368 return 0;
367} 369}
@@ -489,7 +491,7 @@ static void db9_timer(unsigned long private)
489 case DB9_SATURN_DPP: 491 case DB9_SATURN_DPP:
490 case DB9_SATURN_DPP_2: 492 case DB9_SATURN_DPP_2:
491 493
492 db9_saturn(db9->mode, port, dev); 494 db9_saturn(db9->mode, port, db9->dev);
493 break; 495 break;
494 496
495 case DB9_CD32_PAD: 497 case DB9_CD32_PAD: