204 lines
6.6 KiB
C
204 lines
6.6 KiB
C
/* $NetBSD: stic.c,v 1.1 1997/11/11 04:47:57 jonathan Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1997 Jonathan Stone
|
|
* All rights reserved.
|
|
*
|
|
* 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 Jonathan Stone for
|
|
* the NetBSD Project.
|
|
* 4. The name of the author may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
|
|
*/
|
|
|
|
/*
|
|
* Some portions derived from Mach: ga_hdw.c 2.5 93/05/17 15:16:52 rvb
|
|
*/
|
|
|
|
/*
|
|
* Mach Operating System
|
|
* Copyright (c) 1991,1990,1989 Carnegie Mellon University
|
|
* All Rights Reserved.
|
|
*
|
|
* Permission to use, copy, modify and distribute this software and its
|
|
* documentation is hereby granted, provided that both the copyright
|
|
* notice and this permission notice appear in all copies of the
|
|
* software, derivative works or modified versions, and any portions
|
|
* thereof, and that both notices appear in supporting documentation.
|
|
*
|
|
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
|
|
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
|
|
* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
|
|
*
|
|
* Carnegie Mellon requests users of this software to return to
|
|
*
|
|
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
|
|
* School of Computer Science
|
|
* Carnegie Mellon University
|
|
* Pittsburgh PA 15213-3890
|
|
*
|
|
* any improvements or extensions that they make and grant Carnegie Mellon
|
|
* the rights to redistribute these changes.
|
|
*/
|
|
/*
|
|
* HISTORY
|
|
* $Log: stic.c,v $
|
|
* Revision 1.1 1997/11/11 04:47:57 jonathan
|
|
* chipset driver for DEC pixelstamp and STIC (stamp Interface chip).
|
|
*
|
|
* Revision 2.3 93/02/05 08:06:14 danner
|
|
* Mods to *compile* on Flamingo.
|
|
* [93/02/04 01:51:39 af]
|
|
*
|
|
* Revision 2.2 92/05/22 15:47:02 jfriedl
|
|
* Disable interrupts on exit.
|
|
* [92/05/20 22:53:19 af]
|
|
*
|
|
* Created, with some Ultrix code.
|
|
* [92/05/09 af]
|
|
*
|
|
*/
|
|
/*
|
|
* File: ga_misc.c
|
|
* Author: Alessandro Forin, Carnegie Mellon University
|
|
* Date: 5/92
|
|
*
|
|
* Driver for the PMAG-CA 2D graphic board.
|
|
*
|
|
*/
|
|
|
|
/************************************************************************
|
|
* *
|
|
* Copyright (c) 1989 by *
|
|
* Digital Equipment Corporation, Maynard, MA *
|
|
* All rights reserved. *
|
|
* *
|
|
* This software is furnished under a license and may be used and *
|
|
* copied only in accordance with the terms of such license and *
|
|
* with the inclusion of the above copyright notice. This *
|
|
* software or any other copies thereof may not be provided or *
|
|
* otherwise made available to any other person. No title to and *
|
|
* ownership of the software is hereby transferred. *
|
|
* *
|
|
* The information in this software is subject to change without *
|
|
* notice and should not be construed as a commitment by Digital *
|
|
* Equipment Corporation. *
|
|
* *
|
|
* Digital assumes no responsibility for the use or reliability *
|
|
* of its software on equipment which is not supplied by Digital. *
|
|
* *
|
|
************************************************************************/
|
|
|
|
#include <sys/cdefs.h>
|
|
__KERNEL_RCSID(0, "$NetBSD: stic.c,v 1.1 1997/11/11 04:47:57 jonathan Exp $");
|
|
|
|
|
|
/*
|
|
* Support for the DEC pixelstamp and stamp asic (STIC)
|
|
* chips used on 2-D (PMAG-C) and 3-D (PMAG-D, PMAG-E, PMAG-F)
|
|
* DEC turbochannel option cards.
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
|
|
#include <dev/tc/tcvar.h>
|
|
#include <dev/tc/sticvar.h>
|
|
|
|
#include <machine/cpu.h>
|
|
#include <machine/bus.h>
|
|
|
|
int stic_init __P((struct stic_softc *stic_sc));
|
|
|
|
int
|
|
stic_init(stic_sc)
|
|
struct stic_softc *stic_sc;
|
|
{
|
|
int modtype, xconfig, yconfig, config;
|
|
volatile struct stic_regs *stic = STICADDR(stic_sc->stic_addr);
|
|
void *stamp_addr = (void*)(stic_sc->stamp_addr);
|
|
|
|
/*
|
|
* Initialize STIC interface chip registers.
|
|
* magic sequence from logic analyser.
|
|
*/
|
|
stic->sticsr = 0x00000030; /* Get the STIC's attention. */
|
|
tc_wmb();
|
|
DELAY(4000); /* wait 4ms for STIC to respond. */
|
|
stic->sticsr = 0x00000000; /* Hit the STIC's csr again... */
|
|
stic->buscsr = 0xffffffff; /* and bash its bus-acess csr. */
|
|
tc_wmb(); /* Blam! */
|
|
|
|
DELAY(20000); /* wait until the stic recovers... */
|
|
|
|
#ifdef notyet
|
|
/* init vdac */
|
|
bt459_init(stic_sc->vdac_addr);
|
|
#endif
|
|
|
|
/*
|
|
* the following code is taken from Mach 3.0 MK85 source.
|
|
*/
|
|
|
|
/*
|
|
* Initialize Stamp config register for model 0.
|
|
*/
|
|
modtype = stic->modcl;
|
|
xconfig = (modtype & 0x800) >> 11;
|
|
yconfig = (modtype & 0x600) >> 9;
|
|
config = (yconfig << 1) | xconfig;
|
|
|
|
/* stamp0 config */
|
|
*(int32_t *)(stamp_addr+0x000b0) = config;
|
|
*(int32_t *)(stamp_addr+0x000b4) = 0x0;
|
|
|
|
if (yconfig > 0) {
|
|
/*
|
|
* pixelstamp v1 configuration
|
|
*/
|
|
*(int *)(stamp_addr+0x100b0) = 0x8|config;
|
|
*(int *)(stamp_addr+0x100b4) = 0x0;
|
|
if (yconfig > 1) {
|
|
/* pixelstamp v2 & v3 config */
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Initialize STIC video registers.
|
|
* (if we knew what we were doing, we might be able to frob this
|
|
* to work at different montior frequencies.)
|
|
*/
|
|
stic->vblank = (1024 << 16) | 1063;
|
|
stic->vsync = (1027 << 16) | 1030;
|
|
stic->hblank = (255 << 16) | 340;
|
|
stic->hsync2 = 245;
|
|
stic->hsync = (261 << 16) | 293;
|
|
|
|
tc_wmb(); /* wbflush() */
|
|
|
|
stic->ipdvint = STIC_INT_CLR;
|
|
stic->sticsr = 0x00000008;
|
|
tc_wmb(); /* wbflush() */
|
|
return (0);
|
|
}
|