NetBSD/sys/arch/x68k/dev/grf_machdep.c

247 lines
5.8 KiB
C

/* $NetBSD: grf_machdep.c,v 1.2 1996/05/21 15:32:11 oki 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 <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <x68k/dev/grfioctl.h>
#include <x68k/dev/grfvar.h>
#include <x68k/x68k/iodevice.h>
/*
* false when initing for the console.
*/
extern int x68k_realconfig;
int grfbusprint __P((void *auxp, char *));
int grfbusmatch __P((struct device *, void *, void *));
void grfbusattach __P((struct device *, struct device *, void *));
void grfbusscan __P((struct device *, void *));
void grfattach __P((struct device *, struct device *, void *));
int grfmatch __P((struct device *, void *, void *));
int grfprint __P((void *, char *));
struct cfattach grfbus_ca = {
sizeof(struct device), grfbusmatch, grfbusattach
};
struct cfdriver grfbus_cd = {
NULL, "grfbus", DV_DULL
};
struct cfattach grf_ca = {
sizeof(struct grf_softc), grfmatch, grfattach
};
struct cfdriver grf_cd = {
NULL, "grf", DV_DULL
};
/*
* only used in console init.
*/
static struct cfdata *cfdata_gbus = NULL;
static struct cfdata *cfdata_grf = NULL;
int
grfbusmatch(pdp, match, auxp)
struct device *pdp;
void *match, *auxp;
{
struct cfdata *cfp = match;
if (strcmp(auxp, grfbus_cd.cd_name))
return(0);
if((x68k_realconfig == 0) || (cfdata_gbus == NULL)) {
/*
* Probe layers we depend on
*/
if(x68k_realconfig == 0) {
cfdata_gbus = cfp;
}
}
return(1); /* Always there */
}
void
grfbusattach(pdp, dp, auxp)
struct device *pdp, *dp;
void *auxp;
{
int i;
if (dp == NULL) {
i = 0;
x68k_config_found(cfdata_gbus, NULL, (void*)&i, grfbusprint);
} else {
printf("\n");
config_scan(grfbusscan, dp);
}
}
void
grfbusscan(dp, auxp)
struct device *dp;
void *auxp;
{
int i = 0;
config_found(dp, (void*)&i, grfbusprint);
}
int
grfbusprint(auxp, name)
void *auxp;
char *name;
{
if(name == NULL)
return(UNCONF);
return(QUIET);
}
static struct grf_softc congrf;
/*
* XXX called from ite console init routine.
* Does just what configure will do later but without printing anything.
*/
void
grfconfig(dp)
struct device *dp;
{
int unit;
if (!dp)
dp = (void *)&congrf;
unit = dp->dv_unit;
grfinit(dp, unit); /* XXX */
}
/*
* Normal init routine called by configure() code
*/
int
grfmatch(parent, match, aux)
struct device *parent;
void *match, *aux;
{
struct cfdata *cfp = match;
/* XXX console at grf0 */
if (x68k_realconfig == 0) {
if (cfp->cf_unit != 0)
return(0);
cfdata_grf = cfp;
}
return(1);
}
void
grfattach(parent, dp, aux)
struct device *parent;
struct device *dp;
void *aux;
{
/* static struct grf_softc congrf;*/
struct grf_softc *gp;
grfconfig(dp);
/*
* Handle exeption case: early console init
*/
if(dp == NULL) {
/* Attach console ite */
x68k_config_found(cfdata_grf, NULL, &congrf, grfprint);
return;
}
gp = (struct grf_softc *)dp;
printf(": %d x %d ", gp->g_display.gd_dwidth,
gp->g_display.gd_dheight);
if (gp->g_display.gd_colors == 2)
printf("monochrome");
else
printf("%d colors", gp->g_display.gd_colors);
printf(" %s display\n", gp->g_sw->gd_desc);
/*
* try and attach an ite
*/
config_found(dp, gp, grfprint);
}
int
grfprint(auxp, pnp)
void *auxp;
char *pnp;
{
if(pnp)
printf("ite at %s", pnp);
return(UNCONF);
}
int
grfinit(dp, unit)
void *dp;
int unit;
{
struct grf_softc *gp = dp;
register struct grfsw *gsw;
caddr_t addr = (void *)(unit < 1 ? IODEVbase->tvram : IODEVbase->gvram);
gsw = &grfsw[unit];
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);
}