WebSVN - Projects - Diff - Rev 130 and 140


#include "evdev_handler.h"
 
int evdev_fd;
int evdev_out_fd;
int retval;
size_t read_bytes;  /* how many bytes were read */
struct input_event ev[64]; /* the events (up to 64 at once) */
struct input_event led_event;
 
 
 
int  *evdev_rel_axis=NULL;
char *evdev_button=NULL;
 
int counter;
 
int connect_evdev(char* input_evdev_name)
{
  evdev_rel_axis = (int *) calloc( 100, sizeof( int ) );
  evdev_button = (char *)calloc( 100, sizeof( char ) );
 
  struct input_devinfo {
    uint16_t bustype;
    uint16_t vendor;
    uint16_t product;
    uint16_t version;
  };
  struct input_devinfo device_info;
 
  if ((evdev_out_fd = open(input_evdev_name, O_WRONLY)) < 0)
    {
      printf(" cant open %s for writing\n",input_evdev_name);
     
    }
 
  if ((evdev_fd = open(input_evdev_name, O_RDONLY)) < 0)
    {
      printf(" cant open %s for reading!",input_evdev_name);
      return 0;
    }
 
  ioctl(evdev_fd,EVIOCGID,&device_info);
   
  printf("vendor 0x%04hx product 0x%04hx version 0x%04hx \n",
         device_info.vendor, device_info.product,
         device_info.version);
 
 
  char name[256]= "Unknown";
 
  if(ioctl(evdev_fd, EVIOCGNAME(sizeof(name)), name) < 0) {
    perror("evdev ioctl");
  }
 
  printf("EVDEV reports name: %s\n", name);
 
  /* this macro is used to tell if "bit" is set in "array"
   * it selects a byte from the array, and does a boolean AND
   * operation with a byte that only has the relevant bit set.
   * eg. to check for the 12th bit, we do (array[1] & 1<<4)
   */
 
 
    uint8_t evtype_bitmask[EV_MAX/8 + 1];
 
    if(ioctl(evdev_fd, EVIOCGBIT(0, sizeof(evtype_bitmask)), evtype_bitmask) < 0)
      perror("evdev ioctl");
 
     printf("Supported event types:\n");
 
     int i;
     for (i = 0; i < EV_MAX; i++) {
       if (test_bit(i, evtype_bitmask)) {
         /* this means that the bit is set in the event types list */
         printf("  Event type 0x%02x ", i);
         switch ( i)
           {
           case EV_KEY :
             printf(" (Keys or Buttons)\n");
             break;
           case EV_ABS :
             printf(" (Absolute Axes)\n");
             break;
           case EV_LED :
             printf(" (LEDs)\n");
             break;
           case EV_REP :
             printf(" (Repeat)\n");
             break;
           case EV_SYN :
             printf(" (Sync?)\n");
             break;
           case EV_REL :
             printf(" (Relative Axis)\n");
             break;
           case EV_MSC :
             printf(" (Misc)\n");
             break;
           default:
             printf(" (Unknown event type: 0x%04hx)\n", i);
           }}}
 
  return 1;
}
 
int init_evdevstatus_led()
{
  led_event.type=EV_LED;
  led_event.code = LED_MISC;
  led_event.value = 1;
  if (evdev_out_fd)
    retval = write(evdev_out_fd, &led_event, sizeof(struct input_event));
  return 1;
}
 
int blink_evdev_led()
{
 
  if (evdev_out_fd)
    {
      if (led_event.value)
        led_event.value = 0;
      else
        led_event.value = 1 ;
     
      retval = write(evdev_out_fd, &led_event, sizeof(struct input_event));
    }
  return 1;
}
 
int poll_evdev()
{
 
  struct timeval tv;
 
  fd_set rfds;
  FD_ZERO(&rfds);
  FD_SET(evdev_fd,&rfds);
 
  tv.tv_sec = 0;
  tv.tv_usec = 5;
 
  retval = select(evdev_fd+1, &rfds, NULL, NULL, &tv);
 
  if (retval==-1)
    printf("error in select!!!!!!!!\n");
  else if (retval)
    {
      read_bytes = read(evdev_fd, ev, sizeof(struct input_event) * 64);
     
      if (read_bytes < (int) sizeof(struct input_event)) {
        perror("evtest: short read");
        exit (1);
      }
     
      for (counter = 0; counter < (int) (read_bytes / sizeof(struct input_event)); counter++)
        {
         
          printf("%d type:%d code:%d val:%d \n",counter,ev[counter].type,ev[counter].code,ev[counter].value);
 
          //      if (ev[counter].type==EV_REL) evdev_rel_axis[ ev[counter].code]= ev[counter].value;
          // for logitech problem
          if (ev[counter].type==EV_REL) evdev_rel_axis[ ev[counter].code]= ev[counter].value;
          if (ev[counter].type==EV_KEY) evdev_button[ ev[counter].code-256]= ev[counter].value;
        }
     
     
      for (counter=0;counter<20;counter++)
        printf("A%d %d -" , counter, evdev_rel_axis[counter] );
      printf("\n");
     
      for (counter=0;counter<10;counter++)
        printf("B%d %d -" , counter, evdev_button[counter] );
      //                printf("input read done: nick:%d roll:%d gier:%d gas:%d\n",axis[3] , axis[4] , axis[5] , axis[2]); 
    }
  else
    printf("no data from evdev data from evdev: \n");
 
  return 1;
}
 

Rev 130	Rev 140
1	#include "evdev_handler.h"	1	#include "evdev_handler.h"
2		2
3	int evdev_fd;	3	int evdev_fd;
4	int evdev_out_fd;	4	int evdev_out_fd;
5	int retval;	5	int retval;
6	size_t read_bytes; /* how many bytes were read */	6	size_t read_bytes; /* how many bytes were read */
7	struct input_event ev[64]; /* the events (up to 64 at once) */	7	struct input_event ev[64]; /* the events (up to 64 at once) */
8	struct input_event led_event;	8	struct input_event led_event;
9		9
10		10
11		11
12	int *evdev_rel_axis=NULL;	12	int *evdev_rel_axis=NULL;
13	char *evdev_button=NULL;	13	char *evdev_button=NULL;
14		14
15	int counter;	15	int counter;
16		16
17	int connect_evdev(char* input_evdev_name)	17	int connect_evdev(char* input_evdev_name)
18	{	18	{
19	evdev_rel_axis = (int *) calloc( 100, sizeof( int ) );	19	evdev_rel_axis = (int *) calloc( 100, sizeof( int ) );
20	evdev_button = (char *)calloc( 100, sizeof( char ) );	20	evdev_button = (char *)calloc( 100, sizeof( char ) );
21		21
22	struct input_devinfo {	22	struct input_devinfo {
23	uint16_t bustype;	23	uint16_t bustype;
24	uint16_t vendor;	24	uint16_t vendor;
25	uint16_t product;	25	uint16_t product;
26	uint16_t version;	26	uint16_t version;
27	};	27	};
28	struct input_devinfo device_info;	28	struct input_devinfo device_info;
29		29
30	if ((evdev_out_fd = open(input_evdev_name, O_WRONLY)) < 0)	30	if ((evdev_out_fd = open(input_evdev_name, O_WRONLY)) < 0)
31	{	31	{
32	printf(" cant open %s for writing\n",input_evdev_name);	32	printf(" cant open %s for writing\n",input_evdev_name);
33		33
34	}	34	}
35		35
36	if ((evdev_fd = open(input_evdev_name, O_RDONLY)) < 0)	36	if ((evdev_fd = open(input_evdev_name, O_RDONLY)) < 0)
37	{	37	{
38	printf(" cant open %s for reading!",input_evdev_name);	38	printf(" cant open %s for reading!",input_evdev_name);
39	return 0;	39	return 0;
40	}	40	}
41		41
42	ioctl(evdev_fd,EVIOCGID,&device_info);	42	ioctl(evdev_fd,EVIOCGID,&device_info);
43		43
44	printf("vendor 0x%04hx product 0x%04hx version 0x%04hx \n",	44	printf("vendor 0x%04hx product 0x%04hx version 0x%04hx \n",
45	device_info.vendor, device_info.product,	45	device_info.vendor, device_info.product,
46	device_info.version);	46	device_info.version);
47		47
48		48
49	char name[256]= "Unknown";	49	char name[256]= "Unknown";
50		50
51	if(ioctl(evdev_fd, EVIOCGNAME(sizeof(name)), name) < 0) {	51	if(ioctl(evdev_fd, EVIOCGNAME(sizeof(name)), name) < 0) {
52	perror("evdev ioctl");	52	perror("evdev ioctl");
53	}	53	}
54		54
55	printf("EVDEV reports name: %s\n", name);	55	printf("EVDEV reports name: %s\n", name);
56		56
57	/* this macro is used to tell if "bit" is set in "array"	57	/* this macro is used to tell if "bit" is set in "array"
58	* it selects a byte from the array, and does a boolean AND	58	* it selects a byte from the array, and does a boolean AND
59	* operation with a byte that only has the relevant bit set.	59	* operation with a byte that only has the relevant bit set.
60	* eg. to check for the 12th bit, we do (array[1] & 1<<4)	60	* eg. to check for the 12th bit, we do (array[1] & 1<<4)
61	*/	61	*/
62		62
63		63
64	uint8_t evtype_bitmask[EV_MAX/8 + 1];	64	uint8_t evtype_bitmask[EV_MAX/8 + 1];
65		65
66	if(ioctl(evdev_fd, EVIOCGBIT(0, sizeof(evtype_bitmask)), evtype_bitmask) < 0)	66	if(ioctl(evdev_fd, EVIOCGBIT(0, sizeof(evtype_bitmask)), evtype_bitmask) < 0)
67	perror("evdev ioctl");	67	perror("evdev ioctl");
68		68
69	printf("Supported event types:\n");	69	printf("Supported event types:\n");
70		70
71	int i;	71	int i;
72	for (i = 0; i < EV_MAX; i++) {	72	for (i = 0; i < EV_MAX; i++) {
73	if (test_bit(i, evtype_bitmask)) {	73	if (test_bit(i, evtype_bitmask)) {
74	/* this means that the bit is set in the event types list */	74	/* this means that the bit is set in the event types list */
75	printf(" Event type 0x%02x ", i);	75	printf(" Event type 0x%02x ", i);
76	switch ( i)	76	switch ( i)
77	{	77	{
78	case EV_KEY :	78	case EV_KEY :
79	printf(" (Keys or Buttons)\n");	79	printf(" (Keys or Buttons)\n");
80	break;	80	break;
81	case EV_ABS :	81	case EV_ABS :
82	printf(" (Absolute Axes)\n");	82	printf(" (Absolute Axes)\n");
83	break;	83	break;
84	case EV_LED :	84	case EV_LED :
85	printf(" (LEDs)\n");	85	printf(" (LEDs)\n");
86	break;	86	break;
87	case EV_REP :	87	case EV_REP :
88	printf(" (Repeat)\n");	88	printf(" (Repeat)\n");
89	break;	89	break;
90	case EV_SYN :	90	case EV_SYN :
91	printf(" (Sync?)\n");	91	printf(" (Sync?)\n");
92	break;	92	break;
93	case EV_REL :	93	case EV_REL :
94	printf(" (Relative Axis)\n");	94	printf(" (Relative Axis)\n");
95	break;	95	break;
96	case EV_MSC :	96	case EV_MSC :
97	printf(" (Misc)\n");	97	printf(" (Misc)\n");
98	break;	98	break;
99	default:	99	default:
100	printf(" (Unknown event type: 0x%04hx)\n", i);	100	printf(" (Unknown event type: 0x%04hx)\n", i);
101	}}}	101	}}}
102		102
103	return 1;	103	return 1;
104	}	104	}
105		105
106	int init_evdevstatus_led()	106	int init_evdevstatus_led()
107	{	107	{
108	led_event.type=EV_LED;	108	led_event.type=EV_LED;
109	led_event.code = LED_MISC;	109	led_event.code = LED_MISC;
110	led_event.value = 1;	110	led_event.value = 1;
111	if (evdev_out_fd)	111	if (evdev_out_fd)
112	retval = write(evdev_out_fd, &led_event, sizeof(struct input_event));	112	retval = write(evdev_out_fd, &led_event, sizeof(struct input_event));
113	return 1;	113	return 1;
114	}	114	}
115		115
116	int blink_evdev_led()	116	int blink_evdev_led()
117	{	117	{
118		118
119	if (evdev_out_fd)	119	if (evdev_out_fd)
120	{	120	{
121	if (led_event.value)	121	if (led_event.value)
122	led_event.value = 0;	122	led_event.value = 0;
123	else	123	else
124	led_event.value = 1 ;	124	led_event.value = 1 ;
125		125
126	retval = write(evdev_out_fd, &led_event, sizeof(struct input_event));	126	retval = write(evdev_out_fd, &led_event, sizeof(struct input_event));
127	}	127	}
128	return 1;	128	return 1;
129	}	129	}
130		130
131	int poll_evdev()	131	int poll_evdev()
132	{	132	{
133		133
134	struct timeval tv;	134	struct timeval tv;
135		135
136	fd_set rfds;	136	fd_set rfds;
137	FD_ZERO(&rfds);	137	FD_ZERO(&rfds);
138	FD_SET(evdev_fd,&rfds);	138	FD_SET(evdev_fd,&rfds);
139		139
140	tv.tv_sec = 0;	140	tv.tv_sec = 0;
141	tv.tv_usec = 5;	141	tv.tv_usec = 5;
142		142
143	retval = select(evdev_fd+1, &rfds, NULL, NULL, &tv);	143	retval = select(evdev_fd+1, &rfds, NULL, NULL, &tv);
144		144
145	if (retval==-1)	145	if (retval==-1)
146	printf("error in select!!!!!!!!\n");	146	printf("error in select!!!!!!!!\n");
147	else if (retval)	147	else if (retval)
148	{	148	{
149	read_bytes = read(evdev_fd, ev, sizeof(struct input_event) * 64);	149	read_bytes = read(evdev_fd, ev, sizeof(struct input_event) * 64);
150		150
151	if (read_bytes < (int) sizeof(struct input_event)) {	151	if (read_bytes < (int) sizeof(struct input_event)) {
152	perror("evtest: short read");	152	perror("evtest: short read");
153	exit (1);	153	exit (1);
154	}	154	}
155		155
156	for (counter = 0; counter < (int) (read_bytes / sizeof(struct input_event)); counter++)	156	for (counter = 0; counter < (int) (read_bytes / sizeof(struct input_event)); counter++)
157	{	157	{
158		158
159	printf("%d type:%d code:%d val:%d \n",counter,ev[counter].type,ev[counter].code,ev[counter].value);	159	printf("%d type:%d code:%d val:%d \n",counter,ev[counter].type,ev[counter].code,ev[counter].value);
-		160
-		161	// if (ev[counter].type==EV_REL) evdev_rel_axis[ ev[counter].code]= ev[counter].value;
-		162	// for logitech problem
160	if (ev[counter].type==EV_REL) evdev_rel_axis[ ev[counter].code]= ev[counter].value;	163	if (ev[counter].type==EV_REL) evdev_rel_axis[ ev[counter].code]= ev[counter].value;
161	if (ev[counter].type==EV_KEY) evdev_button[ ev[counter].code-256]= ev[counter].value;	164	if (ev[counter].type==EV_KEY) evdev_button[ ev[counter].code-256]= ev[counter].value;
162	}	165	}
163		166
164		167
165	for (counter=0;counter<10;counter++)	168	for (counter=0;counter<20;counter++)
166	printf("A%d %d -" , counter, evdev_rel_axis[counter] );	169	printf("A%d %d -" , counter, evdev_rel_axis[counter] );
167	printf("\n");	170	printf("\n");
168		171
169	for (counter=0;counter<10;counter++)	172	for (counter=0;counter<10;counter++)
170	printf("B%d %d -" , counter, evdev_button[counter] );	173	printf("B%d %d -" , counter, evdev_button[counter] );
171	// printf("input read done: nick:%d roll:%d gier:%d gas:%d\n",axis[3] , axis[4] , axis[5] , axis[2]);	174	// printf("input read done: nick:%d roll:%d gier:%d gas:%d\n",axis[3] , axis[4] , axis[5] , axis[2]);
172	}	175	}
173	else	176	else
174	printf("no data from evdev data from evdev: \n");	177	printf("no data from evdev data from evdev: \n");
175		178
176	return 1;	179	return 1;
177	}	180	}
178		181

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(root)/Riddim/evdev_handler.c - Rev 130 → 140