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176 lines
4.4 KiB
176 lines
4.4 KiB
.. SPDX-License-Identifier: GPL-2.0 OR GFDL-1.1-no-invariants-or-later |
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file: uapi/v4l/keytable.c |
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========================= |
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.. code-block:: c |
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/* keytable.c - This program allows checking/replacing keys at IR |
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Copyright (C) 2006-2009 Mauro Carvalho Chehab <[email protected]> |
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This program is free software; you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation, version 2 of the License. |
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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*/ |
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#include <ctype.h> |
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#include <errno.h> |
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#include <fcntl.h> |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <linux/input.h> |
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#include <sys/ioctl.h> |
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#include "parse.h" |
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void prtcode (int *codes) |
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{ |
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struct parse_key *p; |
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for (p=keynames;p->name!=NULL;p++) { |
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if (p->value == (unsigned)codes[1]) { |
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printf("scancode 0x%04x = %s (0x%02x)\\n", codes[0], p->name, codes[1]); |
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return; |
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} |
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} |
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if (isprint (codes[1])) |
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printf("scancode %d = '%c' (0x%02x)\\n", codes[0], codes[1], codes[1]); |
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else |
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printf("scancode %d = 0x%02x\\n", codes[0], codes[1]); |
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} |
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int parse_code(char *string) |
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{ |
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struct parse_key *p; |
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for (p=keynames;p->name!=NULL;p++) { |
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if (!strcasecmp(p->name, string)) { |
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return p->value; |
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} |
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} |
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return -1; |
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} |
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int main (int argc, char *argv[]) |
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{ |
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int fd; |
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unsigned int i, j; |
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int codes[2]; |
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if (argc<2 || argc>4) { |
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printf ("usage: %s <device> to get table; or\\n" |
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" %s <device> <scancode> <keycode>\\n" |
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" %s <device> <keycode_file>n",*argv,*argv,*argv); |
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return -1; |
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} |
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if ((fd = open(argv[1], O_RDONLY)) < 0) { |
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perror("Couldn't open input device"); |
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return(-1); |
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} |
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if (argc==4) { |
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int value; |
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value=parse_code(argv[3]); |
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if (value==-1) { |
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value = strtol(argv[3], NULL, 0); |
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if (errno) |
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perror("value"); |
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} |
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codes [0] = (unsigned) strtol(argv[2], NULL, 0); |
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codes [1] = (unsigned) value; |
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if(ioctl(fd, EVIOCSKEYCODE, codes)) |
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perror ("EVIOCSKEYCODE"); |
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if(ioctl(fd, EVIOCGKEYCODE, codes)==0) |
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prtcode(codes); |
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return 0; |
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} |
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if (argc==3) { |
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FILE *fin; |
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int value; |
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char *scancode, *keycode, s[2048]; |
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fin=fopen(argv[2],"r"); |
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if (fin==NULL) { |
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perror ("opening keycode file"); |
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return -1; |
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} |
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/* Clears old table */ |
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for (j = 0; j < 256; j++) { |
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for (i = 0; i < 256; i++) { |
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codes[0] = (j << 8) | i; |
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codes[1] = KEY_RESERVED; |
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ioctl(fd, EVIOCSKEYCODE, codes); |
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} |
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} |
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while (fgets(s,sizeof(s),fin)) { |
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scancode=strtok(s,"\\n\\t =:"); |
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if (!scancode) { |
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perror ("parsing input file scancode"); |
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return -1; |
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} |
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if (!strcasecmp(scancode, "scancode")) { |
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scancode = strtok(NULL,"\\n\\t =:"); |
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if (!scancode) { |
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perror ("parsing input file scancode"); |
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return -1; |
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} |
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} |
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keycode=strtok(NULL,"\\n\\t =:("); |
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if (!keycode) { |
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perror ("parsing input file keycode"); |
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return -1; |
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} |
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// printf ("parsing %s=%s:", scancode, keycode); |
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value=parse_code(keycode); |
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// printf ("\\tvalue=%d\\n",value); |
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if (value==-1) { |
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value = strtol(keycode, NULL, 0); |
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if (errno) |
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perror("value"); |
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} |
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codes [0] = (unsigned) strtol(scancode, NULL, 0); |
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codes [1] = (unsigned) value; |
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// printf("\\t%04x=%04x\\n",codes[0], codes[1]); |
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if(ioctl(fd, EVIOCSKEYCODE, codes)) { |
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fprintf(stderr, "Setting scancode 0x%04x with 0x%04x via ",codes[0], codes[1]); |
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perror ("EVIOCSKEYCODE"); |
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} |
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if(ioctl(fd, EVIOCGKEYCODE, codes)==0) |
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prtcode(codes); |
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} |
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return 0; |
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} |
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/* Get scancode table */ |
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for (j = 0; j < 256; j++) { |
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for (i = 0; i < 256; i++) { |
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codes[0] = (j << 8) | i; |
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if (!ioctl(fd, EVIOCGKEYCODE, codes) && codes[1] != KEY_RESERVED) |
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prtcode(codes); |
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} |
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} |
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return 0; |
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}
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