1,7 → 1,6 |
#include "evdev_handler.h" |
#include "config.h" |
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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) */ |
9,16 → 8,118 |
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int *evdev_rel_axis=NULL; |
char *evdev_button=NULL; |
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int counter; |
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int connect_evdev(char* input_evdev_name) |
int evdevs_count=0; |
int file_select(struct direct *entry) |
{ |
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if ((strncmp(entry->d_name, "event",5))==0) |
return (TRUE); |
else |
return(FALSE); |
} |
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void collect_evdev_devices() |
{ |
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char event_dev_path[]="/dev/input/"; |
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struct direct **files; |
evdevs_count = scandir(event_dev_path, &files, file_select, NULL); |
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printf("%d inputs found in %s\n" , evdevs_count,event_dev_path); |
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int i=0; |
for (i=1;i<evdevs_count+1;++i) |
{ |
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printf("%s",files[i-1]->d_name); |
sprintf(evdevs[i].fname,"%s%s",event_dev_path,files[i-1]->d_name); |
int act_fd; |
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if ((act_fd = open(evdevs[i].fname, O_RDONLY)) < 0) |
{ |
printf(" cant open %s for reading!",evdevs[i].name); |
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} |
else |
{ |
if(ioctl(act_fd , EVIOCGNAME(sizeof(evdevs[i].name)), evdevs[i].name) < 0) { |
perror("evdev ioctl"); |
} |
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printf("EVDEV reports name: %s\n", evdevs[i].name); |
close(act_fd); |
} |
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/* |
FILE *fp=NULL ; |
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sprintf(evdevs[i].fname,"/sys/class/input/%s/name",files[i-1]->d_name); |
fp = fopen ( evdevs[i].fname, "r") ; |
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if (fp==NULL) |
{ |
printf("cannot read %s\n",evdevs[i].fname); |
// exit(1); |
} |
int ch=-2; |
int str_pos=0; |
while ( (ch!=-1) && (ch!='\n') ) |
{ |
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ch = fgetc ( fp ) ; |
if ((ch!=13)&&(ch!=10))evdevs[i].name[str_pos++]=ch; |
printf("%c",ch); |
} |
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fclose(fp); |
evdevs[i].name[str_pos++]=0; |
*/ |
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} |
} |
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void print_event_str(int id) |
{ |
switch ( id) |
{ |
case EV_KEY : |
printf("Keys or Button\n"); |
break; |
case EV_ABS : |
printf("Absolute Axis\n"); |
break; |
case EV_LED : |
printf("LED(s)\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", id); |
} |
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return ""; |
} |
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int connect_evdev() |
{ |
evdev_rel_axis = (int *) calloc( 100, sizeof( int ) ); |
evdev_button = (char *)calloc( 100, sizeof( char ) ); |
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struct input_devinfo { |
uint16_t bustype; |
uint16_t vendor; |
27,82 → 128,51 |
}; |
struct input_devinfo device_info; |
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if ((evdev_out_fd = open(input_evdev_name, O_WRONLY)) < 0) |
int i; |
for ( i =0 ; i< input_count;i++) |
{ |
printf(" cant open %s for writing\n",input_evdev_name); |
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} |
inputs[i].evdev_rel_axis = (int *) calloc( 100, sizeof( int ) ); |
inputs[i].evdev_button = (char *)calloc( 500, sizeof( char ) ); |
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if ((evdev_fd = open(input_evdev_name, O_RDONLY)) < 0) |
{ |
printf(" cant open %s for reading!",input_evdev_name); |
return 0; |
} |
if ((inputs[i].evdev_out_fd = open(inputs[i].fname, O_WRONLY)) < 0) |
{ |
printf(" cant open %s for writing\n",inputs[i].fname); |
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} |
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if ((inputs[i].evdev_in_fd = open(inputs[i].fname, O_RDONLY)) < 0) |
{ |
printf(" cant open %s for reading!",inputs[i].fname); |
return 0; |
} |
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ioctl(evdev_fd,EVIOCGID,&device_info); |
ioctl(inputs[i].evdev_in_fd ,EVIOCGID,&device_info); |
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printf("vendor 0x%04hx product 0x%04hx version 0x%04hx \n", |
device_info.vendor, device_info.product, |
device_info.version); |
printf("vendor 0x%04hx product 0x%04hx version 0x%04hx \n", |
device_info.vendor, device_info.product, |
device_info.version); |
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char name[256]= "Unknown"; |
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if(ioctl(evdev_fd, EVIOCGNAME(sizeof(name)), name) < 0) { |
perror("evdev ioctl"); |
} |
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printf("EVDEV reports name: %s\n", name); |
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/* 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) |
*/ |
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uint8_t evtype_bitmask[EV_MAX/8 + 1]; |
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if(ioctl(evdev_fd, EVIOCGBIT(0, sizeof(evtype_bitmask)), evtype_bitmask) < 0) |
perror("evdev ioctl"); |
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printf("Supported event types:\n"); |
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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); |
}}} |
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uint8_t evtype_bitmask[EV_MAX/8 + 1]; |
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if(ioctl(inputs[i].evdev_in_fd , EVIOCGBIT(0, sizeof(evtype_bitmask)), evtype_bitmask) < 0) |
perror("evdev ioctl"); |
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printf("Supported event types:\n"); |
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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); |
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print_event_str(i); |
}} |
} |
return 1; |
} |
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/* |
int init_evdevstatus_led() |
{ |
led_event.type=EV_LED; |
120,7 → 190,7 |
{ |
if (led_event.value) |
led_event.value = 0; |
else |
else |
led_event.value = 1 ; |
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retval = write(evdev_out_fd, &led_event, sizeof(struct input_event)); |
127,54 → 197,59 |
} |
return 1; |
} |
*/ |
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int poll_evdev() |
{ |
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struct timeval tv; |
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fd_set rfds; |
FD_ZERO(&rfds); |
FD_SET(evdev_fd,&rfds); |
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tv.tv_sec = 0; |
tv.tv_usec = 5; |
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retval = select(evdev_fd+1, &rfds, NULL, NULL, &tv); |
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if (retval==-1) |
printf("error in select!!!!!!!!\n"); |
else if (retval) |
printf("polling evdev\n"); |
int i; |
for ( i =0 ; i< input_count;i++) |
{ |
read_bytes = read(evdev_fd, ev, sizeof(struct input_event) * 64); |
struct timeval tv = {0,5}; |
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if (read_bytes < (int) sizeof(struct input_event)) { |
perror("evtest: short read"); |
exit (1); |
} |
fd_set rfds; |
FD_ZERO(&rfds); |
FD_SET(inputs[i].evdev_in_fd,&rfds); |
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for (counter = 0; counter < (int) (read_bytes / sizeof(struct input_event)); counter++) |
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retval = select(inputs[i].evdev_in_fd+1, &rfds, NULL, NULL, &tv); |
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if (retval==-1) |
printf("error in select!!!!!!!!\n"); |
else if (retval) |
{ |
read_bytes = read(inputs[i].evdev_in_fd, ev, sizeof(struct input_event) * 64); |
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if (read_bytes < (int) sizeof(struct input_event)) { |
perror("evtest: short read"); |
exit (1); |
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printf("%d type:%d code:%d val:%d \n",counter,ev[counter].type,ev[counter].code,ev[counter].value); |
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// 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; |
} |
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for (counter = 0; counter < (int) (read_bytes / sizeof(struct input_event)); counter++) |
{ |
//print_event_str(ev[counter].type); |
// printf(" code:%d val:%d \n",ev[counter].code,ev[counter].value); |
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// if (ev[counter].type==EV_REL) evdev_rel_axis[ ev[counter].code]= ev[counter].value; |
// for logitech problem |
if (ev[counter].type==EV_REL) inputs[i].evdev_rel_axis[ ev[counter].code]= ev[counter].value; |
if (ev[counter].type==EV_KEY) inputs[i].evdev_button[ ev[counter].code]= ev[counter].value; |
} |
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for (counter=0;counter<20;counter++) |
printf("A%d %d -" , counter, inputs[i].evdev_rel_axis[counter] ); |
printf("\n"); |
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for (counter=0;counter<10;counter++) |
printf("B%d %d -" , counter, inputs[i].evdev_button[counter] ); |
// printf("input read done: nick:%d roll:%d gier:%d gas:%d\n",axis[3] , axis[4] , axis[5] , axis[2]); |
} |
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for (counter=0;counter<20;counter++) |
printf("A%d %d -" , counter, evdev_rel_axis[counter] ); |
printf("\n"); |
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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"); |
} |
else |
printf("no data from evdev data from evdev: \n"); |
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return 1; |
} |