749 lines
17 KiB
C
749 lines
17 KiB
C
/*-
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* Copyright (c) 1992 The Regents of the University of California.
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* 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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* Ralph Campbell and Rick Macklem.
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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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* @(#)pm.c 7.8 (Berkeley) 11/15/92
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*/
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/*
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* devGraphics.c --
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*
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* This file contains machine-dependent routines for the graphics device.
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*
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* Copyright (C) 1989 Digital Equipment Corporation.
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* Permission to use, copy, modify, and distribute this software and
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* its documentation for any purpose and without fee is hereby granted,
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* provided that the above copyright notice appears in all copies.
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* Digital Equipment Corporation makes no representations about the
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* suitability of this software for any purpose. It is provided "as is"
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* without express or implied warranty.
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*
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* from: $Header: /sprite/src/kernel/dev/ds3100.md/RCS/devGraphics.c,
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* v 9.2 90/02/13 22:16:24 shirriff Exp $ SPRITE (DECWRL)";
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*/
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#include <pm.h>
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#include <dc.h>
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#if NPM > 0
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#if NDC == 0
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pm needs dc device
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#else
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#include <sys/param.h>
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#include <sys/time.h>
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#include <sys/kernel.h>
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#include <sys/ioctl.h>
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#include <sys/file.h>
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#include <sys/errno.h>
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#include <sys/proc.h>
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#include <sys/mman.h>
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#include <vm/vm.h>
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#include <machine/machConst.h>
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#include <machine/dc7085cons.h>
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#include <machine/pmioctl.h>
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#include <pmax/pmax/kn01.h>
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#include <pmax/pmax/pmaxtype.h>
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#include <pmax/pmax/cons.h>
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#include <pmax/dev/device.h>
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#include <pmax/dev/pmreg.h>
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#include <pmax/dev/fbreg.h>
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/*
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* These need to be mapped into user space.
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*/
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struct fbuaccess pmu;
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struct pmax_fb pmfb;
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static u_short curReg; /* copy of PCCRegs.cmdr since it's read only */
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/*
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* Forward references.
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*/
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extern void fbScroll();
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static void pmScreenInit();
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static void pmLoadCursor();
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static void pmRestoreCursorColor();
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static void pmCursorColor();
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void pmPosCursor();
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static void pmInitColorMap();
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static void pmVDACInit();
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static void pmLoadColorMap();
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extern void dcPutc(), fbKbdEvent(), fbMouseEvent(), fbMouseButtons();
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void pmKbdEvent(), pmMouseEvent(), pmMouseButtons();
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extern void (*dcDivertXInput)();
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extern void (*dcMouseEvent)();
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extern void (*dcMouseButtons)();
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extern int pmax_boardtype;
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extern u_short defCursor[32];
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extern struct consdev cn_tab;
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int pmprobe();
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struct driver pmdriver = {
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"pm", pmprobe, 0, 0,
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};
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/*
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* Test to see if device is present.
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* Return true if found and initialized ok.
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*/
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/*ARGSUSED*/
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pmprobe(cp)
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register struct pmax_ctlr *cp;
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{
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register struct pmax_fb *fp = &pmfb;
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if (pmax_boardtype != DS_PMAX)
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return (0);
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if (!fp->initialized && !pminit())
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return (0);
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if (fp->isMono)
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printf("pm0 (monochrome display)\n");
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else
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printf("pm0 (color display)\n");
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return (1);
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}
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/*ARGSUSED*/
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pmopen(dev, flag)
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dev_t dev;
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int flag;
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{
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register struct pmax_fb *fp = &pmfb;
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int s;
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if (!fp->initialized)
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return (ENXIO);
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if (fp->GraphicsOpen)
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return (EBUSY);
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fp->GraphicsOpen = 1;
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if (!fp->isMono)
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pmInitColorMap();
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/*
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* Set up event queue for later
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*/
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fp->fbu->scrInfo.qe.eSize = PM_MAXEVQ;
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fp->fbu->scrInfo.qe.eHead = fp->fbu->scrInfo.qe.eTail = 0;
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fp->fbu->scrInfo.qe.tcSize = MOTION_BUFFER_SIZE;
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fp->fbu->scrInfo.qe.tcNext = 0;
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fp->fbu->scrInfo.qe.timestamp_ms = TO_MS(time);
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s = spltty();
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dcDivertXInput = pmKbdEvent;
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dcMouseEvent = pmMouseEvent;
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dcMouseButtons = pmMouseButtons;
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splx(s);
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return (0);
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}
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/*ARGSUSED*/
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pmclose(dev, flag)
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dev_t dev;
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int flag;
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{
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register struct pmax_fb *fp = &pmfb;
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int s;
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if (!fp->GraphicsOpen)
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return (EBADF);
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fp->GraphicsOpen = 0;
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if (!fp->isMono)
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pmInitColorMap();
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s = spltty();
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dcDivertXInput = (void (*)())0;
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dcMouseEvent = (void (*)())0;
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dcMouseButtons = (void (*)())0;
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splx(s);
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pmScreenInit();
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vmUserUnmap();
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bzero((caddr_t)fp->fr_addr,
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(fp->isMono ? 1024 / 8 : 1024) * 864);
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pmPosCursor(fp->col * 8, fp->row * 15);
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return (0);
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}
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/*ARGSUSED*/
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pmioctl(dev, cmd, data, flag)
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dev_t dev;
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caddr_t data;
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{
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register PCCRegs *pcc = (PCCRegs *)MACH_PHYS_TO_UNCACHED(KN01_SYS_PCC);
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register struct pmax_fb *fp = &pmfb;
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int s;
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switch (cmd) {
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case QIOCGINFO:
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{
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caddr_t addr;
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extern caddr_t vmUserMap();
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/*
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* Map the all the data the user needs access to into
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* user space.
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*/
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addr = vmUserMap(sizeof(struct fbuaccess), (unsigned)fp->fbu);
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if (addr == (caddr_t)0)
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goto mapError;
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*(PM_Info **)data = &((struct fbuaccess *)addr)->scrInfo;
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fp->fbu->scrInfo.qe.events = ((struct fbuaccess *)addr)->events;
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fp->fbu->scrInfo.qe.tcs = ((struct fbuaccess *)addr)->tcs;
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/*
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* Map the plane mask into the user's address space.
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*/
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addr = vmUserMap(4, (unsigned)
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MACH_PHYS_TO_UNCACHED(KN01_PHYS_COLMASK_START));
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if (addr == (caddr_t)0)
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goto mapError;
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fp->fbu->scrInfo.planemask = (char *)addr;
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/*
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* Map the frame buffer into the user's address space.
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*/
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addr = vmUserMap(fp->isMono ? 256*1024 : 1024*1024,
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(unsigned)fp->fr_addr);
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if (addr == (caddr_t)0)
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goto mapError;
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fp->fbu->scrInfo.bitmap = (char *)addr;
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break;
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mapError:
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vmUserUnmap();
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printf("Cannot map shared data structures\n");
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return (EIO);
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}
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case QIOCPMSTATE:
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/*
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* Set mouse state.
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*/
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fp->fbu->scrInfo.mouse = *(pmCursor *)data;
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pmPosCursor(fp->fbu->scrInfo.mouse.x, fp->fbu->scrInfo.mouse.y);
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break;
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case QIOCINIT:
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/*
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* Initialize the screen.
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*/
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pmScreenInit();
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break;
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case QIOCKPCMD:
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{
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pmKpCmd *kpCmdPtr;
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unsigned char *cp;
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kpCmdPtr = (pmKpCmd *)data;
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if (kpCmdPtr->nbytes == 0)
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kpCmdPtr->cmd |= 0x80;
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if (!fp->GraphicsOpen)
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kpCmdPtr->cmd |= 1;
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(*fp->KBDPutc)(fp->kbddev, (int)kpCmdPtr->cmd);
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cp = &kpCmdPtr->par[0];
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for (; kpCmdPtr->nbytes > 0; cp++, kpCmdPtr->nbytes--) {
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if (kpCmdPtr->nbytes == 1)
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*cp |= 0x80;
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(*fp->KBDPutc)(fp->kbddev, (int)*cp);
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}
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break;
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}
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case QIOCADDR:
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*(PM_Info **)data = &fp->fbu->scrInfo;
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break;
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case QIOWCURSOR:
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pmLoadCursor((unsigned short *)data);
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break;
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case QIOWCURSORCOLOR:
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pmCursorColor((unsigned int *)data);
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break;
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case QIOSETCMAP:
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pmLoadColorMap((ColorMap *)data);
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break;
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case QIOKERNLOOP:
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s = spltty();
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dcDivertXInput = pmKbdEvent;
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dcMouseEvent = pmMouseEvent;
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dcMouseButtons = pmMouseButtons;
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splx(s);
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break;
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case QIOKERNUNLOOP:
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s = spltty();
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dcDivertXInput = (void (*)())0;
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dcMouseEvent = (void (*)())0;
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dcMouseButtons = (void (*)())0;
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splx(s);
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break;
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case QIOVIDEOON:
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if (!fp->isMono)
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pmRestoreCursorColor();
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curReg |= PCC_ENPA;
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curReg &= ~PCC_FOPB;
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pcc->cmdr = curReg;
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break;
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case QIOVIDEOOFF:
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if (!fp->isMono)
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pmVDACInit();
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curReg |= PCC_FOPB;
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curReg &= ~PCC_ENPA;
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pcc->cmdr = curReg;
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break;
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default:
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printf("pm0: Unknown ioctl command %x\n", cmd);
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return (EINVAL);
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}
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return (0);
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}
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pmselect(dev, flag, p)
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dev_t dev;
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int flag;
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struct proc *p;
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{
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struct pmax_fb *fp = &pmfb;
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switch (flag) {
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case FREAD:
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if (fp->fbu->scrInfo.qe.eHead != fp->fbu->scrInfo.qe.eTail)
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return (1);
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selrecord(p, &fp->selp);
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break;
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}
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return (0);
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}
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static u_char bg_RGB[3]; /* background color for the cursor */
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static u_char fg_RGB[3]; /* foreground color for the cursor */
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/*
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* Test to see if device is present.
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* Return true if found and initialized ok.
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*/
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pminit()
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{
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register PCCRegs *pcc = (PCCRegs *)MACH_PHYS_TO_UNCACHED(KN01_SYS_PCC);
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register struct pmax_fb *fp = &pmfb;
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fp->isMono = *(volatile u_short *)MACH_PHYS_TO_UNCACHED(KN01_SYS_CSR) &
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KN01_CSR_MONO;
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fp->fr_addr = (char *)MACH_PHYS_TO_UNCACHED(KN01_PHYS_FBUF_START);
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fp->fbu = &pmu;
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fp->posCursor = pmPosCursor;
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fp->KBDPutc = dcPutc;
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fp->kbddev = makedev(DCDEV, DCKBD_PORT);
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if (fp->isMono) {
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/* check for no frame buffer */
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if (badaddr((char *)fp->fr_addr, 4))
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return (0);
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}
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/*
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* Initialize the screen.
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*/
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pcc->cmdr = PCC_FOPB | PCC_VBHI;
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/*
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* Initialize the cursor register.
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*/
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pcc->cmdr = curReg = PCC_ENPA | PCC_ENPB;
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/*
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* Initialize screen info.
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*/
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fp->fbu->scrInfo.max_row = 56;
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fp->fbu->scrInfo.max_col = 80;
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fp->fbu->scrInfo.max_x = 1024;
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fp->fbu->scrInfo.max_y = 864;
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fp->fbu->scrInfo.max_cur_x = 1023;
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fp->fbu->scrInfo.max_cur_y = 863;
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fp->fbu->scrInfo.version = 11;
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fp->fbu->scrInfo.mthreshold = 4;
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fp->fbu->scrInfo.mscale = 2;
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fp->fbu->scrInfo.min_cur_x = -15;
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fp->fbu->scrInfo.min_cur_y = -15;
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fp->fbu->scrInfo.qe.timestamp_ms = TO_MS(time);
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fp->fbu->scrInfo.qe.eSize = PM_MAXEVQ;
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fp->fbu->scrInfo.qe.eHead = fp->fbu->scrInfo.qe.eTail = 0;
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fp->fbu->scrInfo.qe.tcSize = MOTION_BUFFER_SIZE;
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fp->fbu->scrInfo.qe.tcNext = 0;
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/*
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* Initialize the color map, the screen, and the mouse.
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*/
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pmInitColorMap();
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pmScreenInit();
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fbScroll(fp);
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fp->initialized = 1;
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if (cn_tab.cn_fb == (struct pmax_fb *)0)
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cn_tab.cn_fb = fp;
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return (1);
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}
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|
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/*
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* ----------------------------------------------------------------------------
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*
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* pmScreenInit --
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*
|
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* Initialize the screen.
|
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*
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* Results:
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* None.
|
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*
|
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* Side effects:
|
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* The screen is initialized.
|
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*
|
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* ----------------------------------------------------------------------------
|
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*/
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static void
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pmScreenInit()
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{
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register struct pmax_fb *fp = &pmfb;
|
|
|
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/*
|
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* Home the cursor.
|
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* We want an LSI terminal emulation. We want the graphics
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* terminal to scroll from the bottom. So start at the bottom.
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*/
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fp->row = 55;
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fp->col = 0;
|
|
|
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/*
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* Load the cursor with the default values
|
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*
|
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*/
|
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pmLoadCursor(defCursor);
|
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}
|
|
|
|
/*
|
|
* ----------------------------------------------------------------------------
|
|
*
|
|
* pmLoadCursor --
|
|
*
|
|
* Routine to load the cursor Sprite pattern.
|
|
*
|
|
* Results:
|
|
* None.
|
|
*
|
|
* Side effects:
|
|
* The cursor is loaded into the hardware cursor.
|
|
*
|
|
* ----------------------------------------------------------------------------
|
|
*/
|
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static void
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pmLoadCursor(cur)
|
|
unsigned short *cur;
|
|
{
|
|
register PCCRegs *pcc = (PCCRegs *)MACH_PHYS_TO_UNCACHED(KN01_SYS_PCC);
|
|
register int i;
|
|
|
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curReg |= PCC_LODSA;
|
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pcc->cmdr = curReg;
|
|
for (i = 0; i < 32; i++) {
|
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pcc->memory = cur[i];
|
|
MachEmptyWriteBuffer();
|
|
}
|
|
curReg &= ~PCC_LODSA;
|
|
pcc->cmdr = curReg;
|
|
}
|
|
|
|
/*
|
|
* ----------------------------------------------------------------------------
|
|
*
|
|
* pmRestoreCursorColor --
|
|
*
|
|
* Routine to restore the color of the cursor.
|
|
*
|
|
* Results:
|
|
* None.
|
|
*
|
|
* Side effects:
|
|
* None.
|
|
*
|
|
* ----------------------------------------------------------------------------
|
|
*/
|
|
static void
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pmRestoreCursorColor()
|
|
{
|
|
register VDACRegs *vdac = (VDACRegs *)MACH_PHYS_TO_UNCACHED(KN01_SYS_VDAC);
|
|
register int i;
|
|
|
|
vdac->overWA = 0x04;
|
|
MachEmptyWriteBuffer();
|
|
for (i = 0; i < 3; i++) {
|
|
vdac->over = bg_RGB[i];
|
|
MachEmptyWriteBuffer();
|
|
}
|
|
|
|
vdac->overWA = 0x08;
|
|
MachEmptyWriteBuffer();
|
|
vdac->over = 0x00;
|
|
MachEmptyWriteBuffer();
|
|
vdac->over = 0x00;
|
|
MachEmptyWriteBuffer();
|
|
vdac->over = 0x7f;
|
|
MachEmptyWriteBuffer();
|
|
|
|
vdac->overWA = 0x0c;
|
|
MachEmptyWriteBuffer();
|
|
for (i = 0; i < 3; i++) {
|
|
vdac->over = fg_RGB[i];
|
|
MachEmptyWriteBuffer();
|
|
}
|
|
}
|
|
|
|
/*
|
|
* ----------------------------------------------------------------------------
|
|
*
|
|
* pmCursorColor --
|
|
*
|
|
* Set the color of the cursor.
|
|
*
|
|
* Results:
|
|
* None.
|
|
*
|
|
* Side effects:
|
|
* None.
|
|
*
|
|
* ----------------------------------------------------------------------------
|
|
*/
|
|
static void
|
|
pmCursorColor(color)
|
|
unsigned int color[];
|
|
{
|
|
register int i, j;
|
|
|
|
for (i = 0; i < 3; i++)
|
|
bg_RGB[i] = (u_char)(color[i] >> 8);
|
|
|
|
for (i = 3, j = 0; i < 6; i++, j++)
|
|
fg_RGB[j] = (u_char)(color[i] >> 8);
|
|
|
|
pmRestoreCursorColor();
|
|
}
|
|
|
|
/*
|
|
* ----------------------------------------------------------------------------
|
|
*
|
|
* pmInitColorMap --
|
|
*
|
|
* Initialize the color map.
|
|
*
|
|
* Results:
|
|
* None.
|
|
*
|
|
* Side effects:
|
|
* The colormap is initialized appropriately whether it is color or
|
|
* monochrome.
|
|
*
|
|
* ----------------------------------------------------------------------------
|
|
*/
|
|
static void
|
|
pmInitColorMap()
|
|
{
|
|
register VDACRegs *vdac = (VDACRegs *)MACH_PHYS_TO_UNCACHED(KN01_SYS_VDAC);
|
|
struct pmax_fb *fp = &pmfb;
|
|
register int i;
|
|
|
|
*(volatile char *)MACH_PHYS_TO_UNCACHED(KN01_PHYS_COLMASK_START) = 0xff;
|
|
MachEmptyWriteBuffer();
|
|
|
|
if (fp->isMono) {
|
|
vdac->mapWA = 0; MachEmptyWriteBuffer();
|
|
for (i = 0; i < 256; i++) {
|
|
vdac->map = (i < 128) ? 0x00 : 0xff;
|
|
MachEmptyWriteBuffer();
|
|
vdac->map = (i < 128) ? 0x00 : 0xff;
|
|
MachEmptyWriteBuffer();
|
|
vdac->map = (i < 128) ? 0x00 : 0xff;
|
|
MachEmptyWriteBuffer();
|
|
}
|
|
} else {
|
|
vdac->mapWA = 0; MachEmptyWriteBuffer();
|
|
vdac->map = 0; MachEmptyWriteBuffer();
|
|
vdac->map = 0; MachEmptyWriteBuffer();
|
|
vdac->map = 0; MachEmptyWriteBuffer();
|
|
|
|
for (i = 1; i < 256; i++) {
|
|
vdac->map = 0xff; MachEmptyWriteBuffer();
|
|
vdac->map = 0xff; MachEmptyWriteBuffer();
|
|
vdac->map = 0xff; MachEmptyWriteBuffer();
|
|
}
|
|
}
|
|
|
|
for (i = 0; i < 3; i++) {
|
|
bg_RGB[i] = 0x00;
|
|
fg_RGB[i] = 0xff;
|
|
}
|
|
pmRestoreCursorColor();
|
|
}
|
|
|
|
/*
|
|
* ----------------------------------------------------------------------------
|
|
*
|
|
* pmVDACInit --
|
|
*
|
|
* Initialize the VDAC.
|
|
*
|
|
* Results:
|
|
* None.
|
|
*
|
|
* Side effects:
|
|
* None.
|
|
*
|
|
* ----------------------------------------------------------------------------
|
|
*/
|
|
static void
|
|
pmVDACInit()
|
|
{
|
|
register VDACRegs *vdac = (VDACRegs *)MACH_PHYS_TO_UNCACHED(KN01_SYS_VDAC);
|
|
|
|
/*
|
|
*
|
|
* Initialize the VDAC
|
|
*/
|
|
vdac->overWA = 0x04; MachEmptyWriteBuffer();
|
|
vdac->over = 0x00; MachEmptyWriteBuffer();
|
|
vdac->over = 0x00; MachEmptyWriteBuffer();
|
|
vdac->over = 0x00; MachEmptyWriteBuffer();
|
|
vdac->overWA = 0x08; MachEmptyWriteBuffer();
|
|
vdac->over = 0x00; MachEmptyWriteBuffer();
|
|
vdac->over = 0x00; MachEmptyWriteBuffer();
|
|
vdac->over = 0x7f; MachEmptyWriteBuffer();
|
|
vdac->overWA = 0x0c; MachEmptyWriteBuffer();
|
|
vdac->over = 0xff; MachEmptyWriteBuffer();
|
|
vdac->over = 0xff; MachEmptyWriteBuffer();
|
|
vdac->over = 0xff; MachEmptyWriteBuffer();
|
|
}
|
|
|
|
/*
|
|
* ----------------------------------------------------------------------------
|
|
*
|
|
* pmLoadColorMap --
|
|
*
|
|
* Load the color map.
|
|
*
|
|
* Results:
|
|
* None.
|
|
*
|
|
* Side effects:
|
|
* The color map is loaded.
|
|
*
|
|
* ----------------------------------------------------------------------------
|
|
*/
|
|
static void
|
|
pmLoadColorMap(ptr)
|
|
ColorMap *ptr;
|
|
{
|
|
register VDACRegs *vdac = (VDACRegs *)MACH_PHYS_TO_UNCACHED(KN01_SYS_VDAC);
|
|
|
|
if (ptr->index > 256)
|
|
return;
|
|
|
|
vdac->mapWA = ptr->index; MachEmptyWriteBuffer();
|
|
vdac->map = ptr->Entry.red; MachEmptyWriteBuffer();
|
|
vdac->map = ptr->Entry.green; MachEmptyWriteBuffer();
|
|
vdac->map = ptr->Entry.blue; MachEmptyWriteBuffer();
|
|
}
|
|
|
|
/*
|
|
*----------------------------------------------------------------------
|
|
*
|
|
* pmPosCursor --
|
|
*
|
|
* Postion the cursor.
|
|
*
|
|
* Results:
|
|
* None.
|
|
*
|
|
* Side effects:
|
|
* None.
|
|
*
|
|
*----------------------------------------------------------------------
|
|
*/
|
|
void
|
|
pmPosCursor(x, y)
|
|
register int x, y;
|
|
{
|
|
register PCCRegs *pcc = (PCCRegs *)MACH_PHYS_TO_UNCACHED(KN01_SYS_PCC);
|
|
register struct pmax_fb *fp = &pmfb;
|
|
|
|
if (y < fp->fbu->scrInfo.min_cur_y || y > fp->fbu->scrInfo.max_cur_y)
|
|
y = fp->fbu->scrInfo.max_cur_y;
|
|
if (x < fp->fbu->scrInfo.min_cur_x || x > fp->fbu->scrInfo.max_cur_x)
|
|
x = fp->fbu->scrInfo.max_cur_x;
|
|
fp->fbu->scrInfo.cursor.x = x; /* keep track of real cursor */
|
|
fp->fbu->scrInfo.cursor.y = y; /* position, indep. of mouse */
|
|
pcc->xpos = PCC_X_OFFSET + x;
|
|
pcc->ypos = PCC_Y_OFFSET + y;
|
|
}
|
|
|
|
/*
|
|
* pm keyboard and mouse input. Just punt to the generic ones in fb.c
|
|
*/
|
|
void
|
|
pmKbdEvent(ch)
|
|
int ch;
|
|
{
|
|
fbKbdEvent(ch, &pmfb);
|
|
}
|
|
|
|
void
|
|
pmMouseEvent(newRepPtr)
|
|
MouseReport *newRepPtr;
|
|
{
|
|
fbMouseEvent(newRepPtr, &pmfb);
|
|
}
|
|
|
|
void
|
|
pmMouseButtons(newRepPtr)
|
|
MouseReport *newRepPtr;
|
|
{
|
|
fbMouseButtons(newRepPtr, &pmfb);
|
|
}
|
|
#endif /* NDC */
|
|
#endif /* NPM */
|