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/* $NetBSD: grf_rb.c,v 1.4 1994/10/26 07:24:01 cgd Exp $ */
/*
* Copyright (c) 1988 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 $Hdr: grf_rb.c 1.15 93/08/13$
*
* @(#)grf_rb.c 8.4 (Berkeley) 1/12/94
*/
#include "grf.h"
#if NGRF > 0
/*
* Graphics routines for the Renaissance, HP98720 Graphics system.
*/
#include <sys/param.h>
#include <sys/errno.h>
#include <hp300/dev/grfioctl.h>
#include <hp300/dev/grfvar.h>
#include <hp300/dev/grf_rbreg.h>
#include <machine/cpu.h>
/*
* Initialize hardware.
* Must point g_display at a grfinfo structure describing the hardware.
* Returns 0 if hardware not present, non-zero ow.
*/
rb_init(gp, addr)
struct grf_softc *gp;
caddr_t addr;
{
register struct rboxfb *rbp;
struct grfinfo *gi = &gp->g_display;
int fboff;
extern caddr_t sctopa(), iomap();
rbp = (struct rboxfb *) addr;
if (ISIIOVA(addr))
gi->gd_regaddr = (caddr_t) IIOP(addr);
else
gi->gd_regaddr = sctopa(vatosc(addr));
gi->gd_regsize = 0x20000;
gi->gd_fbwidth = (rbp->fbwmsb << 8) | rbp->fbwlsb;
gi->gd_fbheight = (rbp->fbhmsb << 8) | rbp->fbhlsb;
gi->gd_fbsize = gi->gd_fbwidth * gi->gd_fbheight;
fboff = (rbp->fbomsb << 8) | rbp->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 = (rbp->dwmsb << 8) | rbp->dwlsb;
gi->gd_dheight = (rbp->dwmsb << 8) | rbp->dwlsb;
gi->gd_planes = 0; /* ?? */
gi->gd_colors = 256;
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.
*/
rb_mode(gp, cmd, data)
register struct grf_softc *gp;
int cmd;
caddr_t data;
{
register struct rboxfb *rbp;
int error = 0;
rbp = (struct rboxfb *) gp->g_regkva;
switch (cmd) {
/*
* The minimal register info here is from the Renaissance X driver.
*/
case GM_GRFON:
case GM_GRFOFF:
break;
case GM_GRFOVON:
rbp->write_enable = 0;
rbp->opwen = 0xF;
rbp->drive = 0x10;
break;
case GM_GRFOVOFF:
rbp->opwen = 0;
rbp->write_enable = 0xffffffff;
rbp->drive = 0x01;
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("HP98720", fi->name, 8);
fi->attr = 2; /* HW block mover */
/*
* 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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