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/* $NetBSD: grf_hy.c,v 1.2 1994/10/26 07:23:55 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 and Mark Davies of the Department of Computer
* Science, Victoria University of Wellington, New Zealand.
*
* 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 $Hdr: grf_hy.c 1.2 93/08/13$
*
* @(#)grf_hy.c 8.4 (Berkeley) 1/12/94
*/
#include "grf.h"
#if NGRF > 0
/*
* Graphics routines for HYPERION frame buffer
*/
#include <sys/param.h>
#include <sys/errno.h>
#include <hp300/dev/grfioctl.h>
#include <hp300/dev/grfvar.h>
#include <hp300/dev/grf_hyreg.h>
#include <machine/cpu.h>
caddr_t badhyaddr = (caddr_t) -1;
/*
* Initialize hardware.
* Must fill in the grfinfo structure in g_softc.
* Returns 0 if hardware not present, non-zero ow.
*/
hy_init(gp, addr)
struct grf_softc *gp;
caddr_t addr;
{
register struct hyboxfb *hy = (struct hyboxfb *) addr;
struct grfinfo *gi = &gp->g_display;
int fboff;
extern caddr_t sctopa(), iomap();
if (ISIIOVA(addr))
gi->gd_regaddr = (caddr_t) IIOP(addr);
else
gi->gd_regaddr = sctopa(vatosc(addr));
gi->gd_regsize = 0x20000;
gi->gd_fbwidth = (hy->fbwmsb << 8) | hy->fbwlsb;
gi->gd_fbheight = (hy->fbhmsb << 8) | hy->fbhlsb;
gi->gd_fbsize = (gi->gd_fbwidth * gi->gd_fbheight) >> 3;
fboff = (hy->fbomsb << 8) | hy->fbolsb;
gi->gd_fbaddr = (caddr_t) (*((u_char *)addr + fboff) << 16);
if (gi->gd_regaddr >= (caddr_t)DIOIIBASE) {
/*
* For DIO II space the fbaddr just computed is the offset
* from the select code base (regaddr) of the framebuffer.
* Hence it is also implicitly the size of the register set.
*/
gi->gd_regsize = (int) gi->gd_fbaddr;
gi->gd_fbaddr += (int) gi->gd_regaddr;
gp->g_regkva = addr;
gp->g_fbkva = addr + gi->gd_regsize;
} else {
/*
* For DIO space we need to map the seperate framebuffer.
*/
gp->g_regkva = addr;
gp->g_fbkva = iomap(gi->gd_fbaddr, gi->gd_fbsize);
}
gi->gd_dwidth = (hy->dwmsb << 8) | hy->dwlsb;
gi->gd_dheight = (hy->dhmsb << 8) | hy->dhlsb;
gi->gd_planes = hy->num_planes;
gi->gd_colors = 1 << gi->gd_planes;
return(1);
}
/*
* Change the mode of the display.
* Right now all we can do is grfon/grfoff.
* Return a UNIX error number or 0 for success.
* Function may not be needed anymore.
*/
hy_mode(gp, cmd, data)
struct grf_softc *gp;
int cmd;
caddr_t data;
{
int error = 0;
switch (cmd) {
case GM_GRFON:
case GM_GRFOFF:
break;
/*
* Remember UVA of mapping for GCDESCRIBE.
* XXX this should be per-process.
*/
case GM_MAP:
gp->g_data = data;
break;
case GM_UNMAP:
gp->g_data = 0;
break;
#ifdef COMPAT_HPUX
case GM_DESCRIBE:
{
struct grf_fbinfo *fi = (struct grf_fbinfo *)data;
struct grfinfo *gi = &gp->g_display;
int i;
/* feed it what HP-UX expects */
fi->id = gi->gd_id;
fi->mapsize = gi->gd_fbsize;
fi->dwidth = gi->gd_dwidth;
fi->dlength = gi->gd_dheight;
fi->width = gi->gd_fbwidth;
fi->length = gi->gd_fbheight;
fi->bpp = NBBY;
fi->xlen = (fi->width * fi->bpp) / NBBY;
fi->npl = gi->gd_planes;
fi->bppu = fi->npl;
fi->nplbytes = fi->xlen * ((fi->length * fi->bpp) / NBBY);
bcopy("A1096A", fi->name, 7); /* ?? */
fi->attr = 0; /* ?? */
/*
* If mapped, return the UVA where mapped.
*/
if (gp->g_data) {
fi->regbase = gp->g_data;
fi->fbbase = fi->regbase + gp->g_display.gd_regsize;
} else {
fi->fbbase = 0;
fi->regbase = 0;
}
for (i = 0; i < 6; i++)
fi->regions[i] = 0;
break;
}
#endif
default:
error = EINVAL;
break;
}
return(error);
}
#endif
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