NetBSD/sys/arch/hp300/dev/grf_machdep.c

153 lines
4.4 KiB
C

/* $NetBSD: grf_machdep.c,v 1.2 1994/10/26 07:23:59 cgd Exp $ */
/*
* Copyright (c) 1991 University of Utah.
* Copyright (c) 1990, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* the Systems Programming Group of the University of Utah Computer
* Science Department.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* from: Utah $Hdr: grf_machdep.c 1.1 92/01/21
*
* @(#)grf_machdep.c 8.2 (Berkeley) 1/12/94
*/
/*
* Graphics display driver for the HP300/400 DIO/DIO-II based machines.
* This is the hardware-dependent configuration portion of the driver.
*/
#include "grf.h"
#if NGRF > 0
#include <sys/param.h>
#include <hp300/dev/device.h>
#include <hp300/dev/grfioctl.h>
#include <hp300/dev/grfvar.h>
#include <hp300/dev/grfreg.h>
int grfprobe();
struct driver grfdriver = { grfprobe, "grf" };
/*
* XXX called from ite console init routine.
* Does just what configure will do later but without printing anything.
*/
grfconfig()
{
register caddr_t addr;
register struct hp_hw *hw;
register struct hp_device *hd, *nhd;
for (hw = sc_table; hw->hw_type; hw++) {
if (!HW_ISDEV(hw, D_BITMAP))
continue;
/*
* Found one, now match up with a logical unit number
*/
nhd = NULL;
addr = hw->hw_kva;
for (hd = hp_dinit; hd->hp_driver; hd++) {
if (hd->hp_driver != &grfdriver || hd->hp_alive)
continue;
/*
* Wildcarded. If first, remember as possible match.
*/
if (hd->hp_addr == NULL) {
if (nhd == NULL)
nhd = hd;
continue;
}
/*
* Not wildcarded.
* If exact match done searching, else keep looking.
*/
if (sctova(hd->hp_addr) == addr) {
nhd = hd;
break;
}
}
/*
* Found a match, initialize
*/
if (nhd && grfinit(addr, nhd->hp_unit))
nhd->hp_addr = addr;
}
}
/*
* Normal init routine called by configure() code
*/
grfprobe(hd)
struct hp_device *hd;
{
struct grf_softc *gp = &grf_softc[hd->hp_unit];
if ((gp->g_flags & GF_ALIVE) == 0 &&
!grfinit(hd->hp_addr, hd->hp_unit))
return(0);
printf("grf%d: %d x %d ", hd->hp_unit,
gp->g_display.gd_dwidth, gp->g_display.gd_dheight);
if (gp->g_display.gd_colors == 2)
printf("monochrome");
else
printf("%d color", gp->g_display.gd_colors);
printf(" %s display\n", gp->g_sw->gd_desc);
return(1);
}
grfinit(addr, unit)
caddr_t addr;
int unit;
{
struct grf_softc *gp = &grf_softc[unit];
register struct grfsw *gsw;
struct grfreg *gr;
gr = (struct grfreg *) addr;
if (gr->gr_id != GRFHWID)
return(0);
for (gsw = grfsw; gsw < &grfsw[ngrfsw]; gsw++)
if (gsw->gd_hwid == gr->gr_id2)
break;
if (gsw < &grfsw[ngrfsw] && (*gsw->gd_init)(gp, addr)) {
gp->g_sw = gsw;
gp->g_display.gd_id = gsw->gd_swid;
gp->g_flags = GF_ALIVE;
return(1);
}
return(0);
}
#endif