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#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;
int r = sizeof (key_name) / sizeof (key_name[0]);
if (limit < 5)
return -1;
while ((*pos == ' ' || *pos == '\t') && limit > 0) {
(*nend)++;
pos++;
limit--;
}
if (pos [0] != 'K' || pos[1] != 'E' || pos[2] != 'Y' || pos[3] != '_')
return -2;
(*nend) += 4;
pos += 4;
limit -= 4;
while (r >= l) {
int len0, len1 = 0;
index = (l + r) / 2;
len0 = strlen(key_name[index-1].name);
while (len1 < limit && isgraph(pos[len1]))
len1++;
cmp = strncmp (key_name[index-1].name, pos,
strlen(key_name[index-1].name));
if (len0 < len1 && cmp == 0)
cmp = -1;
if (cmp == 0) {
*nend = pos + strlen (key_name[index-1].name);
if (**nend != '\n' &&
**nend != '\t' &&
**nend != ' ' &&
*nend != pos)
return -3;
return key_name[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;
}
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