/* loadkeys - load national keyboard map Author: Marcus Hampel

*/

#include <sys/types.h>

#include <sys/ioctl.h>

#include <minix/keymap.h>

#include <fcntl.h>

#include <unistd.h>

#include <stdlib.h>

#include <string.h>

#include <errno.h>

#if __minix_vmd

#define KBD_DEVICE "/dev/kbd"

#else

#define KBD_DEVICE "/dev/console"

#endif

u16_t keymap[NR_SCAN_CODES * MAP_COLS];

u8_t comprmap[4 + NR_SCAN_CODES * MAP_COLS * 9/8 * 2 + 1];

void tell(char *s)

{

write(2, s, strlen(s));

}

void fatal(char *say)

{

int err = errno;

tell("loadkeys: ");

if (say != NULL) {

tell(say);

tell(": ");

}

tell(strerror(err));

tell("\n");

exit(1);

}

void usage(void)

{

tell("Usage: loadkeys mapfile\n");

exit(1);

}

int main(int argc, char *argv[])

{

u8_t *cm;

u16_t *km;

int fd, n, fb;

if (argc != 2)

usage();

if ((fd = open(argv[1], O_RDONLY)) < 0) fatal(argv[1]);

if (read(fd, comprmap, sizeof(comprmap)) < 0) fatal(argv[1]);

if (memcmp(comprmap, KEY_MAGIC, 4) != 0) {

tell("loadkeys: ");

tell(argv[1]);

tell(": not a keymap file\n");

exit(1);

}

close(fd);

/* Decompress the keymap data. */

cm = comprmap + 4;

n = 8;

for (km = keymap; km < keymap + NR_SCAN_CODES * MAP_COLS; km++) {

if (n == 8) {

/* Need a new flag byte. */

fb = *cm++;

n = 0;

}

*km = *cm++; /* Low byte. */

if (fb & (1 << n)) {

*km |= (*cm++ << 8); /* One of the few special keys. */

}

n++;

}

if ((fd = open(KBD_DEVICE, O_WRONLY)) < 0) fatal(KBD_DEVICE);

if (ioctl(fd, KIOCSMAP, keymap) < 0) fatal(KBD_DEVICE);

return 0;

}