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      1 /*	$NetBSD: wskbd.c,v 1.5 2021/01/31 22:45:47 rillig Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2003 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by David Laight.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #include <sys/cdefs.h>
     33 __RCSID("$NetBSD: wskbd.c,v 1.5 2021/01/31 22:45:47 rillig Exp $");
     34 
     35 #include <unistd.h>
     36 #include <stdlib.h>
     37 #include <fcntl.h>
     38 #include <sys/ioctl.h>
     39 #include <dev/wscons/wsconsio.h>
     40 #include <dev/wscons/wsksymdef.h>
     41 
     42 #include "defs.h"
     43 #include "menu_defs.h"
     44 #include "msg_defs.h"
     45 void save_kb_encoding(void);
     46 
     47 /* wscons setup for sysinst */
     48 
     49 static const char *kbd_name = 0;
     50 static int kb_default = 0;
     51 
     52 struct kb_types {
     53 	kbd_t		kb_encoding;
     54 	const char	*kb_enc_txt;
     55 	const char	*kb_name;
     56 };
     57 
     58 /* Types and names of keyboards, maybe the names should be translated... */
     59 static const struct kb_types kb_types[] = {
     60 #define KB_sysinst(tag, tagf, value, cc, ccf, country) \
     61 	{tag | tagf, cc ccf, country},
     62 KB_ENC_FUN(KB_sysinst)
     63 {KB_US | KB_COLEMAK, "us" ".colemak", "US-Colemak"},
     64 {KB_US | KB_DVORAK, "us" ".dvorak", "US-Dvorak"}
     65 };
     66 
     67 static int
     68 set_kb_encoding(menudesc *m, void *arg)
     69 {
     70 	int fd = *(int *)arg;
     71 	const struct kb_types *kbt = kb_types + m->cursel;
     72 
     73 	if (kbt->kb_encoding != KB_USER) {
     74 		ioctl(fd, WSKBDIO_SETENCODING, &kbt->kb_encoding);
     75 		kbd_name = kbt->kb_enc_txt;
     76 	}
     77 	return 1;
     78 }
     79 
     80 static void
     81 set_kb_default(menudesc *m, void *arg)
     82 {
     83 	m->cursel = kb_default;
     84 }
     85 
     86 void
     87 get_kb_encoding(void)
     88 {
     89 	int fd;
     90 	unsigned int i;
     91 	int kb_menu;
     92 	kbd_t kbdencoding;
     93 	menu_ent opt[__arraycount(kb_types)];
     94 	const char *dflt = msg_string(MSG_kb_default);
     95 
     96 	/*
     97 	 * Check if we are running on a wscons keyboard at all,
     98 	 * do not bother to try changing the layout if not.
     99 	 */
    100 	if (ioctl(0, WSKBDIO_GTYPE,  &i) == -1)
    101 		return;
    102 
    103 	memset(opt, 0, sizeof(opt));
    104 	fd = open("/dev/wskbd0", O_WRONLY);
    105 	if (fd < 0)
    106 		return;
    107 	if (ioctl(fd, WSKBDIO_GETENCODING, &kbdencoding) >=  0) {
    108 		memset(&opt, 0, sizeof opt);
    109 		for (i = 0; i < __arraycount(opt); i++) {
    110 			if (kb_types[i].kb_encoding == KB_USER)
    111 				opt[0].opt_name = MSG_unchanged;
    112 			else {
    113 				opt[i].opt_name = kb_types[i].kb_name;
    114 				if (strcmp(kb_types[i].kb_name, dflt) == 0)
    115 					kb_default = i;
    116 			}
    117 			opt[i].opt_action = set_kb_encoding;
    118 		}
    119 		kb_menu = new_menu(MSG_Keyboard_type, opt, __arraycount(opt),
    120 			-1, -8, 0, 0,
    121 			MC_SCROLL | MC_NOEXITOPT,
    122 			set_kb_default, NULL, NULL, NULL, NULL);
    123 		if (kb_menu != -1) {
    124 			msg_display(MSG_hello);
    125 			process_menu(kb_menu, &fd);
    126 			free_menu(kb_menu);
    127 		}
    128 	}
    129 	close(fd);
    130 }
    131 
    132 void
    133 save_kb_encoding(void)
    134 {
    135 	const char *tp = target_prefix();
    136 
    137 	if (kbd_name == NULL)
    138 		return;
    139 	/*
    140 	 * Put the keyboard encoding into the wscons.conf file. Either:
    141 	 * 1) replace an existing line
    142 	 * 2) replace a commented out line
    143 	 * or
    144 	 * 3) add a line to the end of the file
    145 	 */
    146 	run_program(0, "sed -an -e 'H;$!d;g'"
    147 	    " -e 's/\\nencoding [a-zA-Z0-9.]*\\n/\\\nencoding %s\\\n/; t done'"
    148 	    " -e 's/\\n#encoding [a-zA-Z0-9.]*\\n/\\\nencoding %s\\\n/; t done'"
    149 	    " -e 's/$/\\\nencoding %s/'"
    150 	    " -e ':done'"
    151 	    " -e 'w %s/etc/wscons.conf' %s/etc/wscons.conf",
    152 	    kbd_name, kbd_name, kbd_name, tp, tp);
    153 }
    154