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1 | #include "evdev_handler.h" |
1 | #include "evdev_handler.h" |
- | 2 | #include "config.h" |
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Line 2... | Line -... | ||
2 | - | ||
3 | int evdev_fd; |
- | |
4 | int evdev_out_fd; |
3 | |
5 | int retval; |
4 | int retval; |
6 | size_t read_bytes; /* how many bytes were read */ |
5 | size_t read_bytes; /* how many bytes were read */ |
7 | struct input_event ev[64]; /* the events (up to 64 at once) */ |
6 | struct input_event ev[64]; /* the events (up to 64 at once) */ |
Line 8... | Line -... | ||
8 | struct input_event led_event; |
- | |
9 | - | ||
10 | - | ||
11 | 7 | struct input_event led_event; |
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Line -... | Line 8... | ||
- | 8 | ||
12 | int *evdev_rel_axis=NULL; |
9 | |
13 | char *evdev_button=NULL; |
10 | |
14 | - | ||
15 | int counter; |
- | |
Line 16... | Line 11... | ||
16 | 11 | int counter; |
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17 | int connect_evdev(char* input_evdev_name) |
12 | |
18 | { |
13 | int evdevs_count=0; |
19 | evdev_rel_axis = (int *) calloc( 100, sizeof( int ) ); |
- | |
20 | evdev_button = (char *)calloc( 100, sizeof( char ) ); |
14 | int file_select(struct direct *entry) |
21 | 15 | { |
|
22 | struct input_devinfo { |
- | |
- | 16 | ||
Line 23... | Line 17... | ||
23 | uint16_t bustype; |
17 | if ((strncmp(entry->d_name, "event",5))==0) |
24 | uint16_t vendor; |
18 | return (TRUE); |
25 | uint16_t product; |
- | |
Line 26... | Line 19... | ||
26 | uint16_t version; |
19 | else |
Line 27... | Line 20... | ||
27 | }; |
20 | return(FALSE); |
28 | struct input_devinfo device_info; |
- | |
29 | 21 | } |
|
30 | if ((evdev_out_fd = open(input_evdev_name, O_WRONLY)) < 0) |
- | |
31 | { |
- | |
Line 32... | Line 22... | ||
32 | printf(" cant open %s for writing\n",input_evdev_name); |
22 | |
Line 33... | Line 23... | ||
33 | 23 | ||
34 | } |
24 | void collect_evdev_devices() |
35 | 25 | { |
|
Line -... | Line 26... | ||
- | 26 | ||
- | 27 | char event_dev_path[]="/dev/input/"; |
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- | 28 | ||
Line -... | Line 29... | ||
- | 29 | struct direct **files; |
|
- | 30 | evdevs_count = scandir(event_dev_path, &files, file_select, NULL); |
|
36 | if ((evdev_fd = open(input_evdev_name, O_RDONLY)) < 0) |
31 | |
Line -... | Line 32... | ||
- | 32 | printf("%d inputs found in %s\n" , evdevs_count,event_dev_path); |
|
- | 33 | ||
- | 34 | int i=0; |
|
37 | { |
35 | for (i=1;i<evdevs_count+1;++i) |
38 | printf(" cant open %s for reading!",input_evdev_name); |
36 | { |
39 | return 0; |
37 | |
Line 40... | Line 38... | ||
40 | } |
38 | printf("%s",files[i-1]->d_name); |
- | 39 | sprintf(evdevs[i].fname,"%s%s",event_dev_path,files[i-1]->d_name); |
|
- | 40 | int act_fd; |
|
- | 41 | ||
Line 41... | Line -... | ||
41 | - | ||
42 | ioctl(evdev_fd,EVIOCGID,&device_info); |
- | |
43 | - | ||
44 | printf("vendor 0x%04hx product 0x%04hx version 0x%04hx \n", |
- | |
45 | device_info.vendor, device_info.product, |
42 | if ((act_fd = open(evdevs[i].fname, O_RDONLY)) < 0) |
- | 43 | { |
|
Line -... | Line 44... | ||
- | 44 | printf(" cant open %s for reading!",evdevs[i].name); |
|
- | 45 | ||
Line -... | Line 46... | ||
- | 46 | } |
|
- | 47 | else |
|
46 | device_info.version); |
48 | { |
- | 49 | if(ioctl(act_fd , EVIOCGNAME(sizeof(evdevs[i].name)), evdevs[i].name) < 0) { |
|
- | 50 | perror("evdev ioctl"); |
|
- | 51 | } |
|
- | 52 | ||
- | 53 | printf("EVDEV reports name: %s\n", evdevs[i].name); |
|
- | 54 | close(act_fd); |
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Line -... | Line 55... | ||
- | 55 | } |
|
47 | 56 | ||
48 | 57 | ||
- | 58 | /* |
|
Line -... | Line 59... | ||
- | 59 | FILE *fp=NULL ; |
|
49 | char name[256]= "Unknown"; |
60 | |
- | 61 | sprintf(evdevs[i].fname,"/sys/class/input/%s/name",files[i-1]->d_name); |
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Line 50... | Line 62... | ||
50 | 62 | fp = fopen ( evdevs[i].fname, "r") ; |
|
51 | if(ioctl(evdev_fd, EVIOCGNAME(sizeof(name)), name) < 0) { |
- | |
52 | perror("evdev ioctl"); |
- | |
53 | } |
- | |
- | 63 | ||
- | 64 | if (fp==NULL) |
|
- | 65 | { |
|
54 | 66 | printf("cannot read %s\n",evdevs[i].fname); |
|
- | 67 | // exit(1); |
|
55 | printf("EVDEV reports name: %s\n", name); |
68 | } |
56 | 69 | int ch=-2; |
|
57 | /* this macro is used to tell if "bit" is set in "array" |
70 | int str_pos=0; |
58 | * it selects a byte from the array, and does a boolean AND |
71 | while ( (ch!=-1) && (ch!='\n') ) |
59 | * operation with a byte that only has the relevant bit set. |
72 | { |
60 | * eg. to check for the 12th bit, we do (array[1] & 1<<4) |
73 | |
61 | */ |
74 | ch = fgetc ( fp ) ; |
62 | 75 | if ((ch!=13)&&(ch!=10))evdevs[i].name[str_pos++]=ch; |
|
63 | 76 | printf("%c",ch); |
|
64 | uint8_t evtype_bitmask[EV_MAX/8 + 1]; |
77 | } |
65 | 78 | ||
66 | if(ioctl(evdev_fd, EVIOCGBIT(0, sizeof(evtype_bitmask)), evtype_bitmask) < 0) |
79 | fclose(fp); |
67 | perror("evdev ioctl"); |
80 | evdevs[i].name[str_pos++]=0; |
68 | 81 | */ |
|
69 | printf("Supported event types:\n"); |
82 | |
70 | 83 | } |
|
71 | int i; |
84 | } |
72 | for (i = 0; i < EV_MAX; i++) { |
85 | |
73 | if (test_bit(i, evtype_bitmask)) { |
86 | |
74 | /* this means that the bit is set in the event types list */ |
87 | void print_event_str(int id) |
75 | printf(" Event type 0x%02x ", i); |
88 | { |
76 | switch ( i) |
89 | switch ( id) |
77 | { |
90 | { |
78 | case EV_KEY : |
91 | case EV_KEY : |
79 | printf(" (Keys or Buttons)\n"); |
92 | printf("Keys or Button\n"); |
80 | break; |
93 | break; |
- | 94 | case EV_ABS : |
|
- | 95 | printf("Absolute Axis\n"); |
|
- | 96 | break; |
|
- | 97 | case EV_LED : |
|
- | 98 | printf("LED(s)\n"); |
|
- | 99 | break; |
|
- | 100 | case EV_REP : |
|
- | 101 | printf("Repeat\n"); |
|
- | 102 | break; |
|
- | 103 | case EV_SYN : |
|
- | 104 | printf("Sync?\n"); |
|
- | 105 | break; |
|
- | 106 | case EV_REL : |
|
- | 107 | printf("Relative Axis\n"); |
|
- | 108 | break; |
|
- | 109 | case EV_MSC : |
|
- | 110 | printf("Misc\n"); |
|
- | 111 | break; |
|
- | 112 | default: |
|
- | 113 | printf("Unknown event type ( 0x%04hx)\n", id); |
|
- | 114 | } |
|
- | 115 | ||
- | 116 | return ""; |
|
- | 117 | } |
|
- | 118 | ||
- | 119 | int connect_evdev() |
|
- | 120 | { |
|
- | 121 | ||
- | 122 | ||
- | 123 | struct input_devinfo { |
|
- | 124 | uint16_t bustype; |
|
- | 125 | uint16_t vendor; |
|
- | 126 | uint16_t product; |
|
- | 127 | uint16_t version; |
|
- | 128 | }; |
|
- | 129 | struct input_devinfo device_info; |
|
- | 130 | ||
- | 131 | int i; |
|
- | 132 | for ( i =0 ; i< input_count;i++) |
|
- | 133 | { |
|
- | 134 | inputs[i].evdev_rel_axis = (int *) calloc( 100, sizeof( int ) ); |
|
- | 135 | inputs[i].evdev_button = (char *)calloc( 500, sizeof( char ) ); |
|
- | 136 | ||
- | 137 | if ((inputs[i].evdev_out_fd = open(inputs[i].fname, O_WRONLY)) < 0) |
|
- | 138 | { |
|
- | 139 | printf(" cant open %s for writing\n",inputs[i].fname); |
|
- | 140 | ||
- | 141 | } |
|
- | 142 | ||
- | 143 | if ((inputs[i].evdev_in_fd = open(inputs[i].fname, O_RDONLY)) < 0) |
|
- | 144 | { |
|
- | 145 | printf(" cant open %s for reading!",inputs[i].fname); |
|
- | 146 | return 0; |
|
Line -... | Line 147... | ||
- | 147 | } |
|
- | 148 | ||
- | 149 | ioctl(inputs[i].evdev_in_fd ,EVIOCGID,&device_info); |
|
81 | case EV_ABS : |
150 | |
82 | printf(" (Absolute Axes)\n"); |
151 | printf("vendor 0x%04hx product 0x%04hx version 0x%04hx \n", |
Line -... | Line 152... | ||
- | 152 | device_info.vendor, device_info.product, |
|
83 | break; |
153 | device_info.version); |
84 | case EV_LED : |
154 | |
85 | printf(" (LEDs)\n"); |
155 | |
86 | break; |
156 | uint8_t evtype_bitmask[EV_MAX/8 + 1]; |
87 | case EV_REP : |
157 | |
Line 125... | Line 195... | ||
125 | 195 | |
|
126 | retval = write(evdev_out_fd, &led_event, sizeof(struct input_event)); |
196 | retval = write(evdev_out_fd, &led_event, sizeof(struct input_event)); |
127 | } |
197 | } |
128 | return 1; |
198 | return 1; |
- | 199 | } |
|
Line 129... | Line 200... | ||
129 | } |
200 | */ |
130 | 201 | ||
Line -... | Line 202... | ||
- | 202 | int poll_evdev() |
|
- | 203 | { |
|
- | 204 | ||
- | 205 | printf("polling evdev\n"); |
|
131 | int poll_evdev() |
206 | int i; |
Line 132... | Line 207... | ||
132 | { |
207 | for ( i =0 ; i< input_count;i++) |
133 | 208 | { |
|
134 | struct timeval tv; |
209 | struct timeval tv = {0,5}; |
- | 210 | ||
Line 135... | Line -... | ||
135 | - | ||
136 | fd_set rfds; |
- | |
Line 137... | Line 211... | ||
137 | FD_ZERO(&rfds); |
211 | fd_set rfds; |
Line 138... | Line 212... | ||
138 | FD_SET(evdev_fd,&rfds); |
212 | FD_ZERO(&rfds); |
139 | 213 | FD_SET(inputs[i].evdev_in_fd,&rfds); |
|
140 | tv.tv_sec = 0; |
214 | |
141 | tv.tv_usec = 5; |
215 | |
142 | 216 | ||
Line 143... | Line 217... | ||
143 | retval = select(evdev_fd+1, &rfds, NULL, NULL, &tv); |
217 | retval = select(inputs[i].evdev_in_fd+1, &rfds, NULL, NULL, &tv); |
144 | 218 | ||
145 | if (retval==-1) |
219 | if (retval==-1) |
- | 220 | printf("error in select!!!!!!!!\n"); |
|
146 | printf("error in select!!!!!!!!\n"); |
221 | else if (retval) |
Line 147... | Line 222... | ||
147 | else if (retval) |
222 | { |
148 | { |
223 | read_bytes = read(inputs[i].evdev_in_fd, ev, sizeof(struct input_event) * 64); |
149 | read_bytes = read(evdev_fd, ev, sizeof(struct input_event) * 64); |
- | |
- | 224 | ||
150 | 225 | if (read_bytes < (int) sizeof(struct input_event)) { |
|
Line 151... | Line 226... | ||
151 | if (read_bytes < (int) sizeof(struct input_event)) { |
226 | perror("evtest: short read"); |
152 | perror("evtest: short read"); |
227 | exit (1); |
153 | exit (1); |
228 | |
154 | } |
229 | } |
155 | 230 | ||
Line 156... | Line 231... | ||
156 | for (counter = 0; counter < (int) (read_bytes / sizeof(struct input_event)); counter++) |
231 | for (counter = 0; counter < (int) (read_bytes / sizeof(struct input_event)); counter++) |
157 | { |
232 | { |
158 | 233 | //print_event_str(ev[counter].type); |
|
Line 159... | Line 234... | ||
159 | printf("%d type:%d code:%d val:%d \n",counter,ev[counter].type,ev[counter].code,ev[counter].value); |
234 | // printf(" code:%d val:%d \n",ev[counter].code,ev[counter].value); |
160 | 235 | ||
161 | // if (ev[counter].type==EV_REL) evdev_rel_axis[ ev[counter].code]= ev[counter].value; |
236 | // if (ev[counter].type==EV_REL) evdev_rel_axis[ ev[counter].code]= ev[counter].value; |
162 | // for logitech problem |
237 | // for logitech problem |
163 | if (ev[counter].type==EV_REL) evdev_rel_axis[ ev[counter].code]= ev[counter].value; |
238 | if (ev[counter].type==EV_REL) inputs[i].evdev_rel_axis[ ev[counter].code]= ev[counter].value; |
164 | if (ev[counter].type==EV_KEY) evdev_button[ ev[counter].code-256]= ev[counter].value; |
239 | if (ev[counter].type==EV_KEY) inputs[i].evdev_button[ ev[counter].code]= ev[counter].value; |
165 | } |
240 | } |
166 | 241 | ||
167 | 242 |