From ace9429bb58fd418f0c81d4c2835699bddf6bde6 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Thu, 11 Apr 2024 10:27:49 +0200
Subject: Adding upstream version 6.6.15.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 .../userspace-api/media/rc/keytable.c.rst          | 176 +++++++++++++++++++++
 1 file changed, 176 insertions(+)
 create mode 100644 Documentation/userspace-api/media/rc/keytable.c.rst

(limited to 'Documentation/userspace-api/media/rc/keytable.c.rst')

diff --git a/Documentation/userspace-api/media/rc/keytable.c.rst b/Documentation/userspace-api/media/rc/keytable.c.rst
new file mode 100644
index 0000000000..243e02d261
--- /dev/null
+++ b/Documentation/userspace-api/media/rc/keytable.c.rst
@@ -0,0 +1,176 @@
+.. SPDX-License-Identifier: GPL-2.0 OR GFDL-1.1-no-invariants-or-later
+
+file: uapi/v4l/keytable.c
+=========================
+
+.. code-block:: c
+
+    /* keytable.c - This program allows checking/replacing keys at IR
+
+       Copyright (C) 2006-2009 Mauro Carvalho Chehab <mchehab@kernel.org>
+
+       This program is free software; you can redistribute it and/or modify
+       it under the terms of the GNU General Public License as published by
+       the Free Software Foundation, version 2 of the License.
+
+       This program is distributed in the hope that it will be useful,
+       but WITHOUT ANY WARRANTY; without even the implied warranty of
+       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+       GNU General Public License for more details.
+     */
+
+    #include <ctype.h>
+    #include <errno.h>
+    #include <fcntl.h>
+    #include <stdio.h>
+    #include <stdlib.h>
+    #include <string.h>
+    #include <linux/input.h>
+    #include <sys/ioctl.h>
+
+    #include "parse.h"
+
+    void prtcode (int *codes)
+    {
+	    struct parse_key *p;
+
+	    for (p=keynames;p->name!=NULL;p++) {
+		    if (p->value == (unsigned)codes[1]) {
+			    printf("scancode 0x%04x = %s (0x%02x)\\n", codes[0], p->name, codes[1]);
+			    return;
+		    }
+	    }
+
+	    if (isprint (codes[1]))
+		    printf("scancode %d = '%c' (0x%02x)\\n", codes[0], codes[1], codes[1]);
+	    else
+		    printf("scancode %d = 0x%02x\\n", codes[0], codes[1]);
+    }
+
+    int parse_code(char *string)
+    {
+	    struct parse_key *p;
+
+	    for (p=keynames;p->name!=NULL;p++) {
+		    if (!strcasecmp(p->name, string)) {
+			    return p->value;
+		    }
+	    }
+	    return -1;
+    }
+
+    int main (int argc, char *argv[])
+    {
+	    int fd;
+	    unsigned int i, j;
+	    int codes[2];
+
+	    if (argc<2 || argc>4) {
+		    printf ("usage: %s <device> to get table; or\\n"
+			    "       %s <device> <scancode> <keycode>\\n"
+			    "       %s <device> <keycode_file>n",*argv,*argv,*argv);
+		    return -1;
+	    }
+
+	    if ((fd = open(argv[1], O_RDONLY)) < 0) {
+		    perror("Couldn't open input device");
+		    return(-1);
+	    }
+
+	    if (argc==4) {
+		    int value;
+
+		    value=parse_code(argv[3]);
+
+		    if (value==-1) {
+			    value = strtol(argv[3], NULL, 0);
+			    if (errno)
+				    perror("value");
+		    }
+
+		    codes [0] = (unsigned) strtol(argv[2], NULL, 0);
+		    codes [1] = (unsigned) value;
+
+		    if(ioctl(fd, EVIOCSKEYCODE, codes))
+			    perror ("EVIOCSKEYCODE");
+
+		    if(ioctl(fd, EVIOCGKEYCODE, codes)==0)
+			    prtcode(codes);
+		    return 0;
+	    }
+
+	    if (argc==3) {
+		    FILE *fin;
+		    int value;
+		    char *scancode, *keycode, s[2048];
+
+		    fin=fopen(argv[2],"r");
+		    if (fin==NULL) {
+			    perror ("opening keycode file");
+			    return -1;
+		    }
+
+		    /* Clears old table */
+		    for (j = 0; j < 256; j++) {
+			    for (i = 0; i < 256; i++) {
+				    codes[0] = (j << 8) | i;
+				    codes[1] = KEY_RESERVED;
+				    ioctl(fd, EVIOCSKEYCODE, codes);
+			    }
+		    }
+
+		    while (fgets(s,sizeof(s),fin)) {
+			    scancode=strtok(s,"\\n\\t =:");
+			    if (!scancode) {
+				    perror ("parsing input file scancode");
+				    return -1;
+			    }
+			    if (!strcasecmp(scancode, "scancode")) {
+				    scancode = strtok(NULL,"\\n\\t =:");
+				    if (!scancode) {
+					    perror ("parsing input file scancode");
+					    return -1;
+				    }
+			    }
+
+			    keycode=strtok(NULL,"\\n\\t =:(");
+			    if (!keycode) {
+				    perror ("parsing input file keycode");
+				    return -1;
+			    }
+
+			    // printf ("parsing %s=%s:", scancode, keycode);
+			    value=parse_code(keycode);
+			    // printf ("\\tvalue=%d\\n",value);
+
+			    if (value==-1) {
+				    value = strtol(keycode, NULL, 0);
+				    if (errno)
+					    perror("value");
+			    }
+
+			    codes [0] = (unsigned) strtol(scancode, NULL, 0);
+			    codes [1] = (unsigned) value;
+
+			    // printf("\\t%04x=%04x\\n",codes[0], codes[1]);
+			    if(ioctl(fd, EVIOCSKEYCODE, codes)) {
+				    fprintf(stderr, "Setting scancode 0x%04x with 0x%04x via ",codes[0], codes[1]);
+				    perror ("EVIOCSKEYCODE");
+			    }
+
+			    if(ioctl(fd, EVIOCGKEYCODE, codes)==0)
+				    prtcode(codes);
+		    }
+		    return 0;
+	    }
+
+	    /* Get scancode table */
+	    for (j = 0; j < 256; j++) {
+		    for (i = 0; i < 256; i++) {
+			    codes[0] = (j << 8) | i;
+			    if (!ioctl(fd, EVIOCGKEYCODE, codes) && codes[1] != KEY_RESERVED)
+				    prtcode(codes);
+		    }
+	    }
+	    return 0;
+    }
-- 
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