Mercurial > sdl-ios-xcode

comparison src/haptic/linux/SDL_syshaptic.c @ 2644:ef0ba67154c1 gsoc2008_force_feedback

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
More comments. Some code clean up.
author Edgar Simo <bobbens@gmail.com>
date Tue, 12 Aug 2008 20:49:31 +0000
parents 318e67011ad9
children 269ba4f28d0e
comparison
equal deleted inserted replaced
2643:91fd5d3cb90e 2644:ef0ba67154c1
28 #include "SDL_joystick.h" 28 #include "SDL_joystick.h"
29 #include "../../joystick/SDL_sysjoystick.h" /* For the real SDL_Joystick */ 29 #include "../../joystick/SDL_sysjoystick.h" /* For the real SDL_Joystick */
30 #include "../../joystick/linux/SDL_sysjoystick_c.h" /* For joystick hwdata */ 30 #include "../../joystick/linux/SDL_sysjoystick_c.h" /* For joystick hwdata */
31 31
32 #include <unistd.h> /* close */ 32 #include <unistd.h> /* close */
33 #include <linux/input.h> 33 #include <linux/input.h> /* Force feedback linux stuff. */
34 #include <sys/ioctl.h> 34 #include <fcntl.h> /* O_RDWR */
35 #include <sys/types.h>
36 #include <sys/stat.h>
37 #include <fcntl.h>
38 #include <linux/limits.h>
39 #include <limits.h> /* INT_MAX */ 35 #include <limits.h> /* INT_MAX */
40 #include <string.h> 36 #include <errno.h> /* errno, strerror */
41 #include <errno.h> 37 #include <math.h> /* atan2 */
42 #include <math.h> 38
43 39 /* Just in case. */
44 #ifndef M_PI 40 #ifndef M_PI
45 # define M_PI 3.14159265358979323846 41 # define M_PI 3.14159265358979323846
46 #endif 42 #endif
47 43
48 44
49 #define MAX_HAPTICS 32 45 #define MAX_HAPTICS 32 /* It's doubtful someone has more then 32 evdev */
50 46
51 47
52 /* 48 /*
53 * List of available haptic devices. 49 * List of available haptic devices.
54 */ 50 */
55 static struct 51 static struct
56 { 52 {
57 char *fname; 53 char *fname; /* Dev path name (like /dev/input/event1) */
58 SDL_Haptic *haptic; 54 SDL_Haptic *haptic; /* Assosciated haptic. */
59 } SDL_hapticlist[MAX_HAPTICS]; 55 } SDL_hapticlist[MAX_HAPTICS];
60 56
61 57
62 /* 58 /*
63 * Haptic system hardware data. 59 * Haptic system hardware data.
64 */ 60 */
65 struct haptic_hwdata 61 struct haptic_hwdata
66 { 62 {
67 int fd; 63 int fd; /* File descriptor of the device. */
68 char *fname; /* Points to the name in SDL_hapticlist. */ 64 char *fname; /* Points to the name in SDL_hapticlist. */
69 }; 65 };
70 66
71 67
72 /* 68 /*
346 SDL_SetError("Haptic: Unable to open %s: %s", 342 SDL_SetError("Haptic: Unable to open %s: %s",
347 SDL_hapticlist[i], strerror(errno)); 343 SDL_hapticlist[i], strerror(errno));
348 return -1; 344 return -1;
349 } 345 }
350 346
347 /* Is it a mouse? */
351 if (EV_IsMouse(fd)) { 348 if (EV_IsMouse(fd)) {
352 close(fd); 349 close(fd);
353 return i; 350 return i;
354 } 351 }
355 352
467 { 464 {
468 Uint16 ff_button; 465 Uint16 ff_button;
469 466
470 ff_button = 0; 467 ff_button = 0;
471 468
469 /*
470 * Not sure what the proper syntax is because this actually isn't implemented
471 * in the current kernel from what I've seen (2.6.26).
472 */
472 if (button != 0) { 473 if (button != 0) {
473 ff_button = BTN_GAMEPAD + button - 1; 474 ff_button = BTN_GAMEPAD + button - 1;
474 } 475 }
475 476
476 return ff_button; 477 return ff_button;
646 dest->u.condition[1].right_coeff = condition->right_coeff[1]; 647 dest->u.condition[1].right_coeff = condition->right_coeff[1];
647 dest->u.condition[1].left_coeff = condition->left_coeff[1]; 648 dest->u.condition[1].left_coeff = condition->left_coeff[1];
648 dest->u.condition[1].deadband = CLAMP(condition->deadband[1]); 649 dest->u.condition[1].deadband = CLAMP(condition->deadband[1]);
649 dest->u.condition[1].center = condition->center[1]; 650 dest->u.condition[1].center = condition->center[1];
650 651
652 /*
653 * There is no envelope in the linux force feedback api for conditions.
654 */
655
651 break; 656 break;
652 657
653 case SDL_HAPTIC_RAMP: 658 case SDL_HAPTIC_RAMP:
654 ramp = &src->ramp; 659 ramp = &src->ramp;
655 660