202 lines
6.2 KiB
C
202 lines
6.2 KiB
C
/* $NetBSD: grf_gv.c,v 1.11 2005/12/11 12:19:37 christos Exp $ */
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/*
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* Copyright (c) 1990, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* the Systems Programming Group of the University of Utah Computer
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* Science Department.
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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. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* from: Utah $Hdr: grf_tc.c 1.20 93/08/13$
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*
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* @(#)grf_tc.c 8.4 (Berkeley) 1/12/94
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*/
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/*
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* Copyright (c) 1988 University of Utah.
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*
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* This code is derived from software contributed to Berkeley by
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* the Systems Programming Group of the University of Utah Computer
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* Science Department.
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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 the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* from: Utah $Hdr: grf_tc.c 1.20 93/08/13$
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*
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* @(#)grf_tc.c 8.4 (Berkeley) 1/12/94
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*/
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/*
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* Graphics routines for the X68K native custom chip set.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: grf_gv.c,v 1.11 2005/12/11 12:19:37 christos Exp $");
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#include "opt_compat_hpux.h"
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#include <sys/param.h>
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#include <sys/device.h>
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#include <sys/errno.h>
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#include <machine/grfioctl.h>
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#include <x68k/dev/grfvar.h>
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#include <x68k/x68k/iodevice.h>
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#include <machine/cpu.h>
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int gv_init(struct grf_softc *, caddr_t);
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int gv_mode(struct grf_softc *, u_long, caddr_t);
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/* Initialize hardware.
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* Must fill in the grfinfo structure in g_softc.
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* Returns 0 if hardware not present, non-zero ow.
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*/
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int
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gv_init(struct grf_softc *gp, caddr_t addr)
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{
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struct grfinfo *gi = &gp->g_display;
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gi->gd_fbwidth = 1024;
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gi->gd_fbheight = 1024;
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gi->gd_planes = 4;
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gi->gd_regaddr = (void *)0x00e80000;
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gi->gd_regsize = 0x00010000; /* contains system port */
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gi->gd_fbaddr = (void *)0x00c00000;
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gi->gd_fbsize = gi->gd_fbwidth * gi->gd_fbheight * 2;
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gp->g_regkva = addr;
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gp->g_fbkva = addr;
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switch(IODEVbase->io_sram[0x1d]) {
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case 18:
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/*
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* mode 18, 24kHz
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*/
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gi->gd_dwidth = 1024;
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gi->gd_dheight = 848;
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break;
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case 19:
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/*
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* mode 19, 31kHz VGA mode
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*/
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gi->gd_dwidth = 640;
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gi->gd_dheight = 480;
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break;
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default:
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/*
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* mode 16, 31kHz (default)
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*/
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gi->gd_dwidth = 768;
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gi->gd_dheight = 512;
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break;
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}
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gi->gd_colors = 16;
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return 1;
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}
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/*
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* Change the mode of the display.
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* Right now all we can do is grfon/grfoff.
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* Return a UNIX error number or 0 for success.
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*/
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/*ARGSUSED*/
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int
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gv_mode(struct grf_softc *gp, u_long cmd, caddr_t data)
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{
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int error = 0;
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switch (cmd) {
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case GM_GRFON:
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case GM_GRFOFF:
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break;
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/*
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* Remember UVA of mapping for GCDESCRIBE.
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* XXX this should be per-process.
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*/
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case GM_MAP:
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gp->g_data = data;
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break;
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case GM_UNMAP:
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gp->g_data = 0;
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break;
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case GM_GRFSETVMODE:
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if (*(int *)data == 1) {
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struct grfinfo *gi = &gp->g_display;
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volatile struct crtc *crtc = &IODEVbase->io_crtc;
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/* Reset CRTC, set dwidth and dheight accordingly */
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crtc->r20 = (crtc->r20 & 0xFF00) | 0x1a;
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crtc->r08 = 0x1b;
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crtc->r07 = 0x19c;
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crtc->r06 = 0x1c;
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crtc->r05 = 0x02;
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crtc->r04 = 0x019f;
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crtc->r03 = 0x9a;
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crtc->r02 = 0x1a;
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crtc->r01 = 0x09;
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crtc->r00 = 0xa4;
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gi->gd_dwidth = 1024;
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gi->gd_dheight = 768;
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}
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break;
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default:
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error = EINVAL;
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break;
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}
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return error;
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}
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