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authormzuther <mzuther@3ae390bd-cb1e-0410-b409-cd5a39f66f1f>2011-02-12 22:46:19 +0000
committermzuther <mzuther@3ae390bd-cb1e-0410-b409-cd5a39f66f1f>2011-02-12 22:46:19 +0000
commitf17287509f698f21f38ae047a306ddca3fc13140 (patch)
treee9e0c09fb2ee1d6dd0eaa82365bb101308660f03 /contrib
parent5e69b1e3961ee896d44107c05650c915d9b24298 (diff)
downloadlcd4linux-f17287509f698f21f38ae047a306ddca3fc13140.tar.gz
timer.c: fixed detection of positive clock skew (and some typos)
git-svn-id: https://ssl.bulix.org/svn/lcd4linux/trunk@1143 3ae390bd-cb1e-0410-b409-cd5a39f66f1f
Diffstat (limited to '')
0 files changed, 0 insertions, 0 deletions
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-26 08:42:55 +0000
n70' href='#n70'>70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 
#include <asm/types.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/mman.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <ctype.h>
#include <string.h>

#include "input_keynames.h"


static
void print_error (const char *action, const char *file)
__attribute__ ((noreturn));


static
void print_error (const char *action, const char *file)
{
	static const char msg [] = "\nERROR: could not ";

	write (0, msg, strlen(msg));
	write (0, action, strlen(action));
	write (0, " '", 2);
	write (0, file, strlen(file));
	write (0, "'\n\n", 3);
	exit (-1);
}


static
int parse_keyname (char *pos, char **nend, int limit)
{
	int cmp, _index;
	int l = 1;
	const struct input_key_name *kn;
	int r;

	if (limit < 5)
		return -1;

	while ((*pos == ' ' || *pos == '\t') && limit > 0) {
		(*nend)++;
		pos++;
		limit--;
	}

	if (pos[3] != '_')
		return -2;

	if (pos[0] == 'K' && pos[1] == 'E' && pos[2] == 'Y') {
		kn = key_name;
		r = sizeof (key_name) / sizeof (key_name[0]);
	}
	else if (pos[0] == 'B' && pos[1] == 'T' && pos[2] == 'N') {
		kn = btn_name;
		r = sizeof (btn_name) / sizeof (btn_name[0]);
	}
	else
		return -2;

	(*nend) += 4;
	pos += 4;
	limit -= 4;

	while (r >= l) {
		int len0, len1 = 0;

		_index = (l + r) / 2;

		len0 = strlen(kn[_index-1].name);

		while (len1 < limit && isgraph(pos[len1]))
			len1++;

		cmp = strncmp (kn[_index-1].name, pos,
			       strlen(kn[_index-1].name));

		if (len0 < len1 && cmp == 0)
			cmp = -1;

		if (cmp == 0) {
			*nend = pos + strlen (kn[_index-1].name);

			if (**nend != '\n' &&
			    **nend != '\t' &&
			    **nend != ' ' &&
			    *nend != pos)
				return -3;

			return kn[_index-1].key;
		}

		if (cmp < 0)
			l = _index + 1;
		else
			r = _index - 1;

		if (r < l) {
			static const char msg [] = "\nunknown key '";
			write (0, msg, strlen(msg));
			write (0, pos-4, len1 + 4);
			write (0, "'\n", 2);
		}
	};

	return -4;
}



const char usage [] = "\n\tusage: av7110_loadkeys [-i|--invert] [-a|--address <num>] keymap_filename.(rc5|rcmm)\n\n";


struct ir_setup {
	__u32 ir_config;
	__u16 keytab [256];
} __attribute__ ((packed));


int main (int argc, char **argv)
{
	static struct ir_setup setup;
	int i, fd;
	size_t len;
	char *buf, *pos, *fname = NULL;

	for (i=1; i<argc; i++) {
		if (!strcmp("-i", argv[i]) || !strcmp("--invert", argv[i]))
			setup.ir_config |= 0x8000;
		else if (!strcmp("-a", argv[i]) || !strcmp("--address", argv[i])) {
			if (++i < argc) {
				setup.ir_config |= (atoi(argv[i]) & 0xff) << 16;
				setup.ir_config |= 0x4000;
			}
		} else
			fname = argv[i];
	}

	if (!fname) {
		write (0, usage, strlen(usage));
		exit (-1);
	}

	if (strncmp(".rcmm", fname + strlen(fname) - 5, 5) == 0)
		setup.ir_config |= 0x0001;
	else if (strncmp(".rc5", fname + strlen(fname) - 4, 4) != 0) {
		const char msg [] = "\nERROR: "
			"input filename must have suffix .rc5 or .rcmm\n";
		write (0, msg, strlen(msg));
		exit (-1);
	}

	if ((fd = open (fname, O_RDONLY)) < 0)
		print_error ("open", fname);

	len = lseek (fd, 0, SEEK_END);

	if (!(pos = buf = mmap (NULL, len, PROT_READ, MAP_PRIVATE, fd, 0)))
		print_error ("mmap", fname);

	while (pos < buf + len) {
		int key, keycode;

		while (!isxdigit(*pos) && pos < buf + len)
			pos++;

		if (pos == buf + len)
			break;

		key = strtol (pos, &pos, 0);
		keycode = parse_keyname (pos, &pos, buf + len - pos);

		if (key < 0 || key > 0xff) {
			const char msg [] =
				"\nERROR: key must be in range 0 ... 0xff!\n\n";

			write (0, msg, strlen(msg));
			exit (-1);
		}

		if (keycode < 0)
			print_error ("parse", fname);

		setup.keytab[key] = keycode;
	}

	munmap (buf, len);
	close (fd);

	write (1, &setup, 4 + 256 * sizeof(__u16));

	return 0;
}