1 .. SPDX-License-Identifier: GPL-2.0 OR GFDL-1. 1 .. SPDX-License-Identifier: GPL-2.0 OR GFDL-1.1-no-invariants-or-later
2 2
3 file: uapi/v4l/keytable.c 3 file: uapi/v4l/keytable.c
4 ========================= 4 =========================
5 5
6 .. code-block:: c 6 .. code-block:: c
7 7
8 /* keytable.c - This program allows checki 8 /* keytable.c - This program allows checking/replacing keys at IR
9 9
10 Copyright (C) 2006-2009 Mauro Carvalho < 10 Copyright (C) 2006-2009 Mauro Carvalho Chehab <mchehab@kernel.org>
11 11
12 This program is free software; you can 12 This program is free software; you can redistribute it and/or modify
13 it under the terms of the GNU General P 13 it under the terms of the GNU General Public License as published by
14 the Free Software Foundation, version 2 14 the Free Software Foundation, version 2 of the License.
15 15
16 This program is distributed in the hope 16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even 17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTIC 18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more det 19 GNU General Public License for more details.
20 */ 20 */
21 21
22 #include <ctype.h> 22 #include <ctype.h>
23 #include <errno.h> 23 #include <errno.h>
24 #include <fcntl.h> 24 #include <fcntl.h>
25 #include <stdio.h> 25 #include <stdio.h>
26 #include <stdlib.h> 26 #include <stdlib.h>
27 #include <string.h> 27 #include <string.h>
28 #include <linux/input.h> 28 #include <linux/input.h>
29 #include <sys/ioctl.h> 29 #include <sys/ioctl.h>
30 30
31 #include "parse.h" 31 #include "parse.h"
32 32
33 void prtcode (int *codes) 33 void prtcode (int *codes)
34 { 34 {
35 struct parse_key *p; 35 struct parse_key *p;
36 36
37 for (p=keynames;p->name!=NULL;p++) 37 for (p=keynames;p->name!=NULL;p++) {
38 if (p->value == (unsigned) 38 if (p->value == (unsigned)codes[1]) {
39 printf("scancode 0 39 printf("scancode 0x%04x = %s (0x%02x)\\n", codes[0], p->name, codes[1]);
40 return; 40 return;
41 } 41 }
42 } 42 }
43 43
44 if (isprint (codes[1])) 44 if (isprint (codes[1]))
45 printf("scancode %d = '%c' 45 printf("scancode %d = '%c' (0x%02x)\\n", codes[0], codes[1], codes[1]);
46 else 46 else
47 printf("scancode %d = 0x%0 47 printf("scancode %d = 0x%02x\\n", codes[0], codes[1]);
48 } 48 }
49 49
50 int parse_code(char *string) 50 int parse_code(char *string)
51 { 51 {
52 struct parse_key *p; 52 struct parse_key *p;
53 53
54 for (p=keynames;p->name!=NULL;p++) 54 for (p=keynames;p->name!=NULL;p++) {
55 if (!strcasecmp(p->name, s 55 if (!strcasecmp(p->name, string)) {
56 return p->value; 56 return p->value;
57 } 57 }
58 } 58 }
59 return -1; 59 return -1;
60 } 60 }
61 61
62 int main (int argc, char *argv[]) 62 int main (int argc, char *argv[])
63 { 63 {
64 int fd; 64 int fd;
65 unsigned int i, j; 65 unsigned int i, j;
66 int codes[2]; 66 int codes[2];
67 67
68 if (argc<2 || argc>4) { 68 if (argc<2 || argc>4) {
69 printf ("usage: %s <device 69 printf ("usage: %s <device> to get table; or\\n"
70 " %s <device 70 " %s <device> <scancode> <keycode>\\n"
71 " %s <device 71 " %s <device> <keycode_file>n",*argv,*argv,*argv);
72 return -1; 72 return -1;
73 } 73 }
74 74
75 if ((fd = open(argv[1], O_RDONLY)) 75 if ((fd = open(argv[1], O_RDONLY)) < 0) {
76 perror("Couldn't open inpu 76 perror("Couldn't open input device");
77 return(-1); 77 return(-1);
78 } 78 }
79 79
80 if (argc==4) { 80 if (argc==4) {
81 int value; 81 int value;
82 82
83 value=parse_code(argv[3]); 83 value=parse_code(argv[3]);
84 84
85 if (value==-1) { 85 if (value==-1) {
86 value = strtol(arg 86 value = strtol(argv[3], NULL, 0);
87 if (errno) 87 if (errno)
88 perror("va 88 perror("value");
89 } 89 }
90 90
91 codes [0] = (unsigned) str 91 codes [0] = (unsigned) strtol(argv[2], NULL, 0);
92 codes [1] = (unsigned) val 92 codes [1] = (unsigned) value;
93 93
94 if(ioctl(fd, EVIOCSKEYCODE 94 if(ioctl(fd, EVIOCSKEYCODE, codes))
95 perror ("EVIOCSKEY 95 perror ("EVIOCSKEYCODE");
96 96
97 if(ioctl(fd, EVIOCGKEYCODE 97 if(ioctl(fd, EVIOCGKEYCODE, codes)==0)
98 prtcode(codes); 98 prtcode(codes);
99 return 0; 99 return 0;
100 } 100 }
101 101
102 if (argc==3) { 102 if (argc==3) {
103 FILE *fin; 103 FILE *fin;
104 int value; 104 int value;
105 char *scancode, *keycode, 105 char *scancode, *keycode, s[2048];
106 106
107 fin=fopen(argv[2],"r"); 107 fin=fopen(argv[2],"r");
108 if (fin==NULL) { 108 if (fin==NULL) {
109 perror ("opening k 109 perror ("opening keycode file");
110 return -1; 110 return -1;
111 } 111 }
112 112
113 /* Clears old table */ 113 /* Clears old table */
114 for (j = 0; j < 256; j++) 114 for (j = 0; j < 256; j++) {
115 for (i = 0; i < 25 115 for (i = 0; i < 256; i++) {
116 codes[0] = 116 codes[0] = (j << 8) | i;
117 codes[1] = 117 codes[1] = KEY_RESERVED;
118 ioctl(fd, 118 ioctl(fd, EVIOCSKEYCODE, codes);
119 } 119 }
120 } 120 }
121 121
122 while (fgets(s,sizeof(s),f 122 while (fgets(s,sizeof(s),fin)) {
123 scancode=strtok(s, 123 scancode=strtok(s,"\\n\\t =:");
124 if (!scancode) { 124 if (!scancode) {
125 perror ("p 125 perror ("parsing input file scancode");
126 return -1; 126 return -1;
127 } 127 }
128 if (!strcasecmp(sc 128 if (!strcasecmp(scancode, "scancode")) {
129 scancode = 129 scancode = strtok(NULL,"\\n\\t =:");
130 if (!scanc 130 if (!scancode) {
131 pe 131 perror ("parsing input file scancode");
132 re 132 return -1;
133 } 133 }
134 } 134 }
135 135
136 keycode=strtok(NUL 136 keycode=strtok(NULL,"\\n\\t =:(");
137 if (!keycode) { 137 if (!keycode) {
138 perror ("p 138 perror ("parsing input file keycode");
139 return -1; 139 return -1;
140 } 140 }
141 141
142 // printf ("parsin 142 // printf ("parsing %s=%s:", scancode, keycode);
143 value=parse_code(k 143 value=parse_code(keycode);
144 // printf ("\\tval 144 // printf ("\\tvalue=%d\\n",value);
145 145
146 if (value==-1) { 146 if (value==-1) {
147 value = st 147 value = strtol(keycode, NULL, 0);
148 if (errno) 148 if (errno)
149 pe 149 perror("value");
150 } 150 }
151 151
152 codes [0] = (unsig 152 codes [0] = (unsigned) strtol(scancode, NULL, 0);
153 codes [1] = (unsig 153 codes [1] = (unsigned) value;
154 154
155 // printf("\\t%04x 155 // printf("\\t%04x=%04x\\n",codes[0], codes[1]);
156 if(ioctl(fd, EVIOC 156 if(ioctl(fd, EVIOCSKEYCODE, codes)) {
157 fprintf(st 157 fprintf(stderr, "Setting scancode 0x%04x with 0x%04x via ",codes[0], codes[1]);
158 perror ("E 158 perror ("EVIOCSKEYCODE");
159 } 159 }
160 160
161 if(ioctl(fd, EVIOC 161 if(ioctl(fd, EVIOCGKEYCODE, codes)==0)
162 prtcode(co 162 prtcode(codes);
163 } 163 }
164 return 0; 164 return 0;
165 } 165 }
166 166
167 /* Get scancode table */ 167 /* Get scancode table */
168 for (j = 0; j < 256; j++) { 168 for (j = 0; j < 256; j++) {
169 for (i = 0; i < 256; i++) 169 for (i = 0; i < 256; i++) {
170 codes[0] = (j << 8 170 codes[0] = (j << 8) | i;
171 if (!ioctl(fd, EVI 171 if (!ioctl(fd, EVIOCGKEYCODE, codes) && codes[1] != KEY_RESERVED)
172 prtcode(co 172 prtcode(codes);
173 } 173 }
174 } 174 }
175 return 0; 175 return 0;
176 } 176 }
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