6b3f4dc157
This commit separates the low-level keyboard driver from TTY, putting it in a separate driver (PCKBD). The commit also separates management of raw input devices from TTY, and puts it in a separate server (INPUT). All keyboard and mouse input from hardware is sent by drivers to the INPUT server, which either sends it to a process that has opened a raw input device, or otherwise forwards it to TTY for standard processing. Design by Dirk Vogt. Prototype by Uli Kastlunger. Additional changes made to the prototype: - the event communication is now based on USB HID codes; all input drivers have to use USB codes to describe events; - all TTY keymaps have been converted to USB format, with the effect that a single keymap covers all keys; there is no (static) escaped keymap anymore; - further keymap tweaks now allow remapping of literally all keys; - input device renumbering and protocol rewrite; - INPUT server rewrite, with added support for cancel and select; - PCKBD reimplementation, including PC/AT-to-USB translation; - support for manipulating keyboard LEDs has been added; - keyboard and mouse multiplexer devices have been added to INPUT, primarily so that an X server need only open two devices; - a new "libinputdriver" library abstracts away protocol details from input drivers, and should be used by all future input drivers; - both INPUT and PCKBD can be restarted; - TTY is now scheduled by KERNEL, so that it won't be punished for running a lot; without this, simply running "yes" on the console kills the system; - the KIOCBELL IOCTL has been moved to /dev/console; - support for the SCANCODES termios setting has been removed; - obsolete keymap compression has been removed; - the obsolete Olivetti M24 keymap has been removed. Change-Id: I3a672fb8c4fd566734e4b46d3994b4b7fc96d578
57 lines
1.1 KiB
C
57 lines
1.1 KiB
C
/* loadkeys - load national keyboard map Author: Marcus Hampel
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*/
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#include <sys/types.h>
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#include <sys/ioctl.h>
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#include <minix/keymap.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <errno.h>
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#define KBD_DEVICE "/dev/console"
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void fatal(char *say)
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{
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fprintf(stderr, "loadkeys: %s: %s\n", say, strerror(errno));
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exit(EXIT_FAILURE);
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}
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void usage(void)
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{
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fprintf(stderr, "usage: loadkeys <mapfile>\n");
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exit(EXIT_FAILURE);
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}
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int main(int argc, char *argv[])
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{
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char sig[4];
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keymap_t keymap;
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int fd;
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if (argc != 2)
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usage();
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if ((fd = open(argv[1], O_RDONLY)) < 0) fatal(argv[1]);
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if (read(fd, sig, sizeof(sig)) < sizeof(sig)) fatal(argv[1]);
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if (memcmp(sig, KEY_MAGIC, sizeof(sig)) != 0) {
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fprintf(stderr, "loadkeys: %s: not a keymap file\n", argv[1]);
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return EXIT_FAILURE;
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}
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if (read(fd, keymap, sizeof(keymap)) < sizeof(keymap)) fatal(argv[1]);
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close(fd);
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if ((fd = open(KBD_DEVICE, O_WRONLY)) < 0) fatal(KBD_DEVICE);
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if (ioctl(fd, KIOCSMAP, keymap) < 0) fatal(KBD_DEVICE);
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return EXIT_SUCCESS;
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}
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