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
145 lines
3 KiB
C
145 lines
3 KiB
C
|
|
#define _SYSTEM 1
|
|
|
|
#include <minix/callnr.h>
|
|
#include <minix/com.h>
|
|
#include <minix/config.h>
|
|
#include <minix/const.h>
|
|
#include <minix/ds.h>
|
|
#include <minix/endpoint.h>
|
|
#include <minix/minlib.h>
|
|
#include <minix/type.h>
|
|
#include <minix/ipc.h>
|
|
#include <minix/sysutil.h>
|
|
#include <minix/syslib.h>
|
|
#include <minix/safecopies.h>
|
|
#include <minix/bitmap.h>
|
|
#include <minix/vm.h>
|
|
#include <minix/ds.h>
|
|
|
|
#include <errno.h>
|
|
#include <string.h>
|
|
#include <env.h>
|
|
#include <stdio.h>
|
|
|
|
#include "glo.h"
|
|
#include "proto.h"
|
|
#include "util.h"
|
|
|
|
struct query_exit_struct {
|
|
int avail;
|
|
endpoint_t ep;
|
|
};
|
|
static struct query_exit_struct array[NR_PROCS];
|
|
|
|
/*===========================================================================*
|
|
* do_query_exit *
|
|
*===========================================================================*/
|
|
int do_query_exit(message *m)
|
|
{
|
|
int i, nr;
|
|
endpoint_t ep = NONE;
|
|
|
|
for (i = 0; i < NR_PROCS; i++) {
|
|
if (!array[i].avail) {
|
|
array[i].avail = 1;
|
|
ep = array[i].ep;
|
|
array[i].ep = 0;
|
|
|
|
break;
|
|
}
|
|
}
|
|
|
|
nr = 0;
|
|
for (i = 0; i < NR_PROCS; i++) {
|
|
if (!array[i].avail)
|
|
nr++;
|
|
}
|
|
m->VM_QUERY_RET_PT = ep;
|
|
m->VM_QUERY_IS_MORE = (nr > 0);
|
|
|
|
return OK;
|
|
}
|
|
|
|
/*===========================================================================*
|
|
* do_notify_sig *
|
|
*===========================================================================*/
|
|
int do_notify_sig(message *m)
|
|
{
|
|
int i, avails = 0;
|
|
endpoint_t ep = m->VM_NOTIFY_SIG_ENDPOINT;
|
|
endpoint_t ipc_ep = m->VM_NOTIFY_SIG_IPC;
|
|
int r;
|
|
struct vmproc *vmp;
|
|
int pslot;
|
|
|
|
if(vm_isokendpt(ep, &pslot) != OK) return ESRCH;
|
|
vmp = &vmproc[pslot];
|
|
|
|
/* Only record the event if we've been asked to report it. */
|
|
if(!(vmp->vm_flags & VMF_WATCHEXIT))
|
|
return OK;
|
|
|
|
for (i = 0; i < NR_PROCS; i++) {
|
|
/* its signal is already here */
|
|
if (!array[i].avail && array[i].ep == ep)
|
|
goto out;
|
|
if (array[i].avail)
|
|
avails++;
|
|
}
|
|
if (!avails) {
|
|
/* no slot for signals, unlikely */
|
|
printf("VM: no slot for signals!\n");
|
|
return ENOMEM;
|
|
}
|
|
|
|
for (i = 0; i < NR_PROCS; i++) {
|
|
if (array[i].avail) {
|
|
array[i].avail = 0;
|
|
array[i].ep = ep;
|
|
|
|
break;
|
|
}
|
|
}
|
|
|
|
out:
|
|
/* only care when IPC server starts up,
|
|
* and bypass the process to be signal is IPC itself.
|
|
*/
|
|
if (ipc_ep != 0 && ep != ipc_ep) {
|
|
r = notify(ipc_ep);
|
|
if (r != OK)
|
|
printf("VM: notify IPC error!\n");
|
|
}
|
|
return OK;
|
|
}
|
|
|
|
/*===========================================================================*
|
|
* do_watch_exit *
|
|
*===========================================================================*/
|
|
int do_watch_exit(message *m)
|
|
{
|
|
endpoint_t e = m->VM_WE_EP;
|
|
struct vmproc *vmp;
|
|
int p;
|
|
if(vm_isokendpt(e, &p) != OK) return ESRCH;
|
|
vmp = &vmproc[p];
|
|
vmp->vm_flags |= VMF_WATCHEXIT;
|
|
|
|
return OK;
|
|
}
|
|
|
|
/*===========================================================================*
|
|
* init_query_exit *
|
|
*===========================================================================*/
|
|
void init_query_exit(void)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < NR_PROCS; i++) {
|
|
array[i].avail = 1;
|
|
array[i].ep = 0;
|
|
}
|
|
}
|
|
|