148 lines
4.7 KiB
C
148 lines
4.7 KiB
C
/* $NetBSD: wscons_glue.c,v 1.1 1998/03/22 14:24:02 drochner Exp $ */
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/*
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* Copyright (c) 1996, 1997 Christopher G. Demetriou. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Christopher G. Demetriou
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* for the NetBSD Project.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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static const char _copyright[] __attribute__ ((unused)) =
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"Copyright (c) 1996, 1997 Christopher G. Demetriou. All rights reserved.";
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static const char _rcsid[] __attribute__ ((unused)) =
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"$NetBSD: wscons_glue.c,v 1.1 1998/03/22 14:24:02 drochner Exp $";
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/device.h>
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#include <dev/wscons/wscons_callbacks.h>
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extern struct cfdriver wsdisplay_cd, wskbd_cd;
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int wscons_setup_glue_callback_set;
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static void wscons_setup_glue __P((void *v));
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void
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wscons_glue_set_callback()
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{
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if (!wscons_setup_glue_callback_set) {
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/* doesn't really hurt to run it twice, though... */
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timeout(wscons_setup_glue, NULL, 0);
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wscons_setup_glue_callback_set = 1;
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}
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}
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static void
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wscons_setup_glue(v)
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void *v;
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{
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int i, kbddev, displaydev;
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struct device *kbddevice, *displaydevice;
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wscons_setup_glue_callback_set = 0;
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/*
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* Two passes:
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*
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* First:
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* Find the console keyboard and display devices,
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* glue them together if they're not already attached.
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*/
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kbddev = displaydev = -1;
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for (i = 0; i < wskbd_cd.cd_ndevs; i++)
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if (wskbd_cd.cd_devs[i] != NULL &&
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wskbd_is_console(wskbd_cd.cd_devs[i])) {
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kbddev = i;
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break;
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}
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for (i = 0; i < wsdisplay_cd.cd_ndevs; i++)
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if (wsdisplay_cd.cd_devs[i] != NULL &&
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wsdisplay_is_console(wsdisplay_cd.cd_devs[i])) {
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displaydev = i;
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break;
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}
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if (kbddev != -1 && (wskbd_cd.cd_devs[kbddev] != NULL) &&
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wskbd_display(wskbd_cd.cd_devs[kbddev]) == NULL &&
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displaydev != -1 && (wsdisplay_cd.cd_devs[displaydev] != NULL) &&
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wsdisplay_kbd(wsdisplay_cd.cd_devs[displaydev]) == NULL) {
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kbddevice = wskbd_cd.cd_devs[kbddev];
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displaydevice = wsdisplay_cd.cd_devs[displaydev];
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wskbd_set_display(kbddevice, displaydevice);
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wsdisplay_set_kbd(displaydevice, kbddevice);
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printf("wscons: %s glued to %s (console)\n",
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kbddevice->dv_xname, displaydevice->dv_xname);
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}
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/*
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* Second:
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*
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* Attach remaining unattached keyboard and display
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* devices, in order by unit number.
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*/
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i = 0;
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for (kbddev = 0; kbddev < wskbd_cd.cd_ndevs; kbddev++) {
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if (wskbd_cd.cd_devs[kbddev] == NULL ||
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wskbd_display(wskbd_cd.cd_devs[kbddev]) != NULL)
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continue;
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displaydev = -1;
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for (; i < wsdisplay_cd.cd_ndevs; i++) {
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if (wsdisplay_cd.cd_devs[i] == NULL ||
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wsdisplay_kbd(wsdisplay_cd.cd_devs[i]) != NULL)
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continue;
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if (!wsdisplay_has_emulator(wsdisplay_cd.cd_devs[i]))
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continue;
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displaydev = i;
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break;
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}
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if (displaydev == -1)
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continue;
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kbddevice = wskbd_cd.cd_devs[kbddev];
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displaydevice = wsdisplay_cd.cd_devs[displaydev];
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KASSERT(kbddevice != NULL);
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KASSERT(wskbd_display(kbddevice) == NULL);
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KASSERT(displaydevice != NULL);
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KASSERT(wsdisplay_kbd(displaydevice) == NULL);
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wskbd_set_display(kbddevice, displaydevice);
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wsdisplay_set_kbd(displaydevice, kbddevice);
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printf("wscons: %s glued to %s\n", kbddevice->dv_xname,
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displaydevice->dv_xname);
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}
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/* Now wasn't that simple? */
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}
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