949 lines
21 KiB
C
949 lines
21 KiB
C
/* $NetBSD: mfb.c,v 1.4 1994/10/26 21:09:09 cgd Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 1992, 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to Berkeley by
|
|
* Ralph Campbell and Rick Macklem.
|
|
*
|
|
* 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.
|
|
*
|
|
* @(#)mfb.c 8.1 (Berkeley) 6/10/93
|
|
*/
|
|
|
|
/*
|
|
* 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
|
|
* 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 the
|
|
* rights to redistribute these changes.
|
|
*/
|
|
/*
|
|
* devGraphics.c --
|
|
*
|
|
* This file contains machine-dependent routines for the graphics device.
|
|
*
|
|
* Copyright (C) 1989 Digital Equipment Corporation.
|
|
* Permission to use, copy, modify, and distribute this software and
|
|
* its documentation for any purpose and without fee is hereby granted,
|
|
* provided that the above copyright notice appears in all copies.
|
|
* Digital Equipment Corporation makes no representations about the
|
|
* suitability of this software for any purpose. It is provided "as is"
|
|
* without express or implied warranty.
|
|
*
|
|
* from: Header: /sprite/src/kernel/dev/ds3100.md/RCS/devGraphics.c,
|
|
* v 9.2 90/02/13 22:16:24 shirriff Exp SPRITE (DECWRL)";
|
|
*/
|
|
|
|
#include <mfb.h>
|
|
#if NMFB > 0
|
|
#include <sys/param.h>
|
|
#include <sys/time.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/ioctl.h>
|
|
#include <sys/file.h>
|
|
#include <sys/errno.h>
|
|
#include <sys/proc.h>
|
|
#include <sys/mman.h>
|
|
|
|
#include <vm/vm.h>
|
|
|
|
#include <machine/machConst.h>
|
|
#include <machine/pmioctl.h>
|
|
|
|
#include <pmax/pmax/cons.h>
|
|
#include <pmax/pmax/pmaxtype.h>
|
|
|
|
#include <pmax/dev/device.h>
|
|
#include <pmax/dev/mfbreg.h>
|
|
#include <pmax/dev/fbreg.h>
|
|
|
|
#include <dc.h>
|
|
#include <dtop.h>
|
|
#include <scc.h>
|
|
|
|
/*
|
|
* These need to be mapped into user space.
|
|
*/
|
|
struct fbuaccess mfbu;
|
|
struct pmax_fb mfbfb;
|
|
|
|
/*
|
|
* Forward references.
|
|
*/
|
|
static void mfbScreenInit();
|
|
static void mfbLoadCursor();
|
|
static void mfbRestoreCursorColor();
|
|
static void mfbCursorColor();
|
|
void mfbPosCursor();
|
|
static void mfbInitColorMap();
|
|
static void mfbLoadColorMap();
|
|
static void mfbConfigMouse(), mfbDeconfigMouse();
|
|
static void bt455_video_on(), bt455_video_off(), bt431_select_reg();
|
|
static void bt431_write_reg(), bt431_init();
|
|
static u_char bt431_read_reg();
|
|
|
|
void mfbKbdEvent(), mfbMouseEvent(), mfbMouseButtons();
|
|
#if NDC > 0
|
|
extern void (*dcDivertXInput)();
|
|
extern void (*dcMouseEvent)();
|
|
extern void (*dcMouseButtons)();
|
|
#endif
|
|
#if NSCC > 0
|
|
extern void (*sccDivertXInput)();
|
|
extern void (*sccMouseEvent)();
|
|
extern void (*sccMouseButtons)();
|
|
#endif
|
|
#if NDTOP > 0
|
|
extern void (*dtopDivertXInput)();
|
|
extern void (*dtopMouseEvent)();
|
|
extern void (*dtopMouseButtons)();
|
|
#endif
|
|
extern int pmax_boardtype;
|
|
extern u_short defCursor[32];
|
|
extern struct consdev cn_tab;
|
|
|
|
int mfbprobe();
|
|
struct driver mfbdriver = {
|
|
"mfb", mfbprobe, 0, 0,
|
|
};
|
|
|
|
#define MFB_OFFSET_VRAM 0x200000 /* from module's base */
|
|
#define MFB_OFFSET_BT431 0x180000 /* Bt431 registers */
|
|
#define MFB_OFFSET_BT455 0x100000 /* Bt455 registers */
|
|
#define MFB_OFFSET_IREQ 0x080000 /* Interrupt req. control */
|
|
#define MFB_OFFSET_ROM 0x0 /* Diagnostic ROM */
|
|
#define MFB_FB_SIZE 0x200000 /* frame buffer size */
|
|
|
|
/*
|
|
* Test to see if device is present.
|
|
* Return true if found and initialized ok.
|
|
*/
|
|
/*ARGSUSED*/
|
|
mfbprobe(cp)
|
|
register struct pmax_ctlr *cp;
|
|
{
|
|
register struct pmax_fb *fp = &mfbfb;
|
|
|
|
if (!fp->initialized && !mfbinit(cp->pmax_addr))
|
|
return (0);
|
|
printf("mfb0 (mono display)\n");
|
|
return (1);
|
|
}
|
|
|
|
/*ARGSUSED*/
|
|
mfbopen(dev, flag)
|
|
dev_t dev;
|
|
int flag;
|
|
{
|
|
register struct pmax_fb *fp = &mfbfb;
|
|
int s;
|
|
|
|
if (!fp->initialized)
|
|
return (ENXIO);
|
|
if (fp->GraphicsOpen)
|
|
return (EBUSY);
|
|
|
|
fp->GraphicsOpen = 1;
|
|
mfbInitColorMap(1);
|
|
/*
|
|
* Set up event queue for later
|
|
*/
|
|
fp->fbu->scrInfo.qe.eSize = PM_MAXEVQ;
|
|
fp->fbu->scrInfo.qe.eHead = fp->fbu->scrInfo.qe.eTail = 0;
|
|
fp->fbu->scrInfo.qe.tcSize = MOTION_BUFFER_SIZE;
|
|
fp->fbu->scrInfo.qe.tcNext = 0;
|
|
fp->fbu->scrInfo.qe.timestamp_ms = TO_MS(time);
|
|
mfbConfigMouse();
|
|
return (0);
|
|
}
|
|
|
|
/*ARGSUSED*/
|
|
mfbclose(dev, flag)
|
|
dev_t dev;
|
|
int flag;
|
|
{
|
|
register struct pmax_fb *fp = &mfbfb;
|
|
int s;
|
|
|
|
if (!fp->GraphicsOpen)
|
|
return (EBADF);
|
|
|
|
fp->GraphicsOpen = 0;
|
|
mfbInitColorMap(0);
|
|
mfbDeconfigMouse();
|
|
mfbScreenInit();
|
|
bzero((caddr_t)fp->fr_addr, 2048 * 1024);
|
|
mfbPosCursor(fp->col * 8, fp->row * 15);
|
|
return (0);
|
|
}
|
|
|
|
/*ARGSUSED*/
|
|
mfbioctl(dev, cmd, data, flag, p)
|
|
dev_t dev;
|
|
caddr_t data;
|
|
struct proc *p;
|
|
{
|
|
register struct pmax_fb *fp = &mfbfb;
|
|
int s;
|
|
|
|
switch (cmd) {
|
|
case QIOCGINFO:
|
|
return (fbmmap(fp, dev, data, p));
|
|
|
|
case QIOCPMSTATE:
|
|
/*
|
|
* Set mouse state.
|
|
*/
|
|
fp->fbu->scrInfo.mouse = *(pmCursor *)data;
|
|
mfbPosCursor(fp->fbu->scrInfo.mouse.x, fp->fbu->scrInfo.mouse.y);
|
|
break;
|
|
|
|
case QIOCINIT:
|
|
/*
|
|
* Initialize the screen.
|
|
*/
|
|
mfbScreenInit();
|
|
break;
|
|
|
|
case QIOCKPCMD:
|
|
{
|
|
pmKpCmd *kpCmdPtr;
|
|
unsigned char *cp;
|
|
|
|
kpCmdPtr = (pmKpCmd *)data;
|
|
if (kpCmdPtr->nbytes == 0)
|
|
kpCmdPtr->cmd |= 0x80;
|
|
if (!fp->GraphicsOpen)
|
|
kpCmdPtr->cmd |= 1;
|
|
(*fp->KBDPutc)(fp->kbddev, (int)kpCmdPtr->cmd);
|
|
cp = &kpCmdPtr->par[0];
|
|
for (; kpCmdPtr->nbytes > 0; cp++, kpCmdPtr->nbytes--) {
|
|
if (kpCmdPtr->nbytes == 1)
|
|
*cp |= 0x80;
|
|
(*fp->KBDPutc)(fp->kbddev, (int)*cp);
|
|
}
|
|
break;
|
|
}
|
|
|
|
case QIOCADDR:
|
|
*(PM_Info **)data = &fp->fbu->scrInfo;
|
|
break;
|
|
|
|
case QIOWCURSOR:
|
|
mfbLoadCursor((unsigned short *)data);
|
|
break;
|
|
|
|
case QIOWCURSORCOLOR:
|
|
mfbCursorColor((unsigned int *)data);
|
|
break;
|
|
|
|
case QIOSETCMAP:
|
|
#ifdef notdef
|
|
mfbLoadColorMap((ColorMap *)data);
|
|
#endif
|
|
break;
|
|
|
|
case QIOKERNLOOP:
|
|
mfbConfigMouse();
|
|
break;
|
|
|
|
case QIOKERNUNLOOP:
|
|
mfbDeconfigMouse();
|
|
break;
|
|
|
|
case QIOVIDEOON:
|
|
bt455_video_on();
|
|
break;
|
|
|
|
case QIOVIDEOOFF:
|
|
bt455_video_off();
|
|
break;
|
|
|
|
default:
|
|
printf("mfb0: Unknown ioctl command %x\n", cmd);
|
|
return (EINVAL);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Return the physical page number that corresponds to byte offset 'off'.
|
|
*/
|
|
/*ARGSUSED*/
|
|
mfbmap(dev, off, prot)
|
|
dev_t dev;
|
|
{
|
|
int len;
|
|
|
|
len = pmax_round_page(((vm_offset_t)&mfbu & PGOFSET) + sizeof(mfbu));
|
|
if (off < len)
|
|
return pmax_btop(MACH_CACHED_TO_PHYS(&mfbu) + off);
|
|
off -= len;
|
|
if (off >= mfbfb.fr_size)
|
|
return (-1);
|
|
return pmax_btop(MACH_UNCACHED_TO_PHYS(mfbfb.fr_addr) + off);
|
|
}
|
|
|
|
mfbselect(dev, flag, p)
|
|
dev_t dev;
|
|
int flag;
|
|
struct proc *p;
|
|
{
|
|
struct pmax_fb *fp = &mfbfb;
|
|
|
|
switch (flag) {
|
|
case FREAD:
|
|
if (fp->fbu->scrInfo.qe.eHead != fp->fbu->scrInfo.qe.eTail)
|
|
return (1);
|
|
selrecord(p, &fp->selp);
|
|
break;
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
static u_char cursor_RGB[6]; /* cursor color 2 & 3 */
|
|
|
|
/*
|
|
* There are actually 2 Bt431 cursor sprite chips that each generate 1 bit
|
|
* of each cursor pixel for a 2bit 64x64 cursor sprite. The corresponding
|
|
* registers for these two chips live in adjacent bytes of the shorts that
|
|
* are defined in bt431_regmap_t.
|
|
*/
|
|
static void
|
|
mfbLoadCursor(cursor)
|
|
u_short *cursor;
|
|
{
|
|
register int i, j, k, pos;
|
|
register u_short ap, bp, out;
|
|
register bt431_regmap_t *regs;
|
|
|
|
regs = (bt431_regmap_t *)(mfbfb.fr_chipaddr +
|
|
MFB_OFFSET_BT431);
|
|
/*
|
|
* Fill in the cursor sprite using the A and B planes, as provided
|
|
* for the pmax.
|
|
* XXX This will have to change when the X server knows that this
|
|
* is not a pmax display. (ie. Not the Xcfbpmax server.)
|
|
*/
|
|
pos = 0;
|
|
bt431_select_reg(regs, BT431_REG_CRAM_BASE);
|
|
for (k = 0; k < 16; k++) {
|
|
ap = *cursor;
|
|
bp = *(cursor + 16);
|
|
j = 0;
|
|
while (j < 2) {
|
|
out = 0;
|
|
for (i = 0; i < 8; i++) {
|
|
out = (out << 1) | ((bp & 0x1) << 8) |
|
|
(ap & 0x1);
|
|
ap >>= 1;
|
|
bp >>= 1;
|
|
}
|
|
BT431_WRITE_CMAP_AUTOI(regs, out);
|
|
pos++;
|
|
j++;
|
|
}
|
|
while (j < 8) {
|
|
BT431_WRITE_CMAP_AUTOI(regs, 0);
|
|
pos++;
|
|
j++;
|
|
}
|
|
cursor++;
|
|
}
|
|
while (pos < 512) {
|
|
BT431_WRITE_CMAP_AUTOI(regs, 0);
|
|
pos++;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Initialization
|
|
*/
|
|
int
|
|
mfbinit(cp)
|
|
char *cp;
|
|
{
|
|
register struct pmax_fb *fp = &mfbfb;
|
|
|
|
/* check for no frame buffer */
|
|
if (badaddr(cp, 4))
|
|
return (0);
|
|
|
|
fp->isMono = 0;
|
|
fp->fr_addr = cp + MFB_OFFSET_VRAM;
|
|
fp->fr_chipaddr = cp;
|
|
fp->fr_size = MFB_FB_SIZE;
|
|
/*
|
|
* Must be in Uncached space since the fbuaccess structure is
|
|
* mapped into the user's address space uncached.
|
|
*/
|
|
fp->fbu = (struct fbuaccess *)
|
|
MACH_PHYS_TO_UNCACHED(MACH_CACHED_TO_PHYS(&mfbu));
|
|
fp->posCursor = mfbPosCursor;
|
|
if (tb_kbdmouseconfig(fp))
|
|
return (0);
|
|
|
|
/*
|
|
* Initialize the screen.
|
|
*/
|
|
bt431_init(fp->fr_chipaddr + MFB_OFFSET_BT431);
|
|
|
|
/*
|
|
* Initialize screen info.
|
|
*/
|
|
fp->fbu->scrInfo.max_row = 67;
|
|
fp->fbu->scrInfo.max_col = 80;
|
|
fp->fbu->scrInfo.max_x = 1280;
|
|
fp->fbu->scrInfo.max_y = 1024;
|
|
fp->fbu->scrInfo.max_cur_x = 1279;
|
|
fp->fbu->scrInfo.max_cur_y = 1023;
|
|
fp->fbu->scrInfo.version = 11;
|
|
fp->fbu->scrInfo.mthreshold = 4;
|
|
fp->fbu->scrInfo.mscale = 2;
|
|
fp->fbu->scrInfo.min_cur_x = 0;
|
|
fp->fbu->scrInfo.min_cur_y = 0;
|
|
fp->fbu->scrInfo.qe.timestamp_ms = TO_MS(time);
|
|
fp->fbu->scrInfo.qe.eSize = PM_MAXEVQ;
|
|
fp->fbu->scrInfo.qe.eHead = fp->fbu->scrInfo.qe.eTail = 0;
|
|
fp->fbu->scrInfo.qe.tcSize = MOTION_BUFFER_SIZE;
|
|
fp->fbu->scrInfo.qe.tcNext = 0;
|
|
|
|
/*
|
|
* Initialize the color map, the screen, and the mouse.
|
|
*/
|
|
mfbInitColorMap(0);
|
|
mfbScreenInit();
|
|
fbScroll(fp);
|
|
|
|
fp->initialized = 1;
|
|
if (cn_tab.cn_fb == (struct pmax_fb *)0)
|
|
cn_tab.cn_fb = fp;
|
|
return (1);
|
|
}
|
|
|
|
/*
|
|
* ----------------------------------------------------------------------------
|
|
*
|
|
* mfbScreenInit --
|
|
*
|
|
* Initialize the screen.
|
|
*
|
|
* Results:
|
|
* None.
|
|
*
|
|
* Side effects:
|
|
* The screen is initialized.
|
|
*
|
|
* ----------------------------------------------------------------------------
|
|
*/
|
|
static void
|
|
mfbScreenInit()
|
|
{
|
|
register struct pmax_fb *fp = &mfbfb;
|
|
|
|
/*
|
|
* Home the cursor.
|
|
* We want an LSI terminal emulation. We want the graphics
|
|
* terminal to scroll from the bottom. So start at the bottom.
|
|
*/
|
|
fp->row = 66;
|
|
fp->col = 0;
|
|
|
|
/*
|
|
* Load the cursor with the default values
|
|
*
|
|
*/
|
|
mfbLoadCursor(defCursor);
|
|
}
|
|
|
|
/*
|
|
* ----------------------------------------------------------------------------
|
|
*
|
|
* RestoreCursorColor --
|
|
*
|
|
* Routine to restore the color of the cursor.
|
|
*
|
|
* Results:
|
|
* None.
|
|
*
|
|
* Side effects:
|
|
* None.
|
|
*
|
|
* ----------------------------------------------------------------------------
|
|
*/
|
|
static void
|
|
mfbRestoreCursorColor()
|
|
{
|
|
bt455_regmap_t *regs = (bt455_regmap_t *)(mfbfb.fr_chipaddr +
|
|
MFB_OFFSET_BT455);
|
|
ColorMap cm;
|
|
u_char fg;
|
|
|
|
if (cursor_RGB[0] || cursor_RGB[1] || cursor_RGB[2])
|
|
cm.Entry.red = cm.Entry.green = cm.Entry.blue = 0xffff;
|
|
else
|
|
cm.Entry.red = cm.Entry.green = cm.Entry.blue = 0;
|
|
cm.index = 8;
|
|
mfbLoadColorMap(&cm);
|
|
cm.index = 9;
|
|
mfbLoadColorMap(&cm);
|
|
|
|
if (cursor_RGB[3] || cursor_RGB[4] || cursor_RGB[5])
|
|
fg = 0xf;
|
|
else
|
|
fg = 0;
|
|
regs->addr_ovly = fg;
|
|
MachEmptyWriteBuffer();
|
|
regs->addr_ovly = fg;
|
|
MachEmptyWriteBuffer();
|
|
regs->addr_ovly = fg;
|
|
MachEmptyWriteBuffer();
|
|
}
|
|
|
|
/*
|
|
* ----------------------------------------------------------------------------
|
|
*
|
|
* CursorColor --
|
|
*
|
|
* Set the color of the cursor.
|
|
*
|
|
* Results:
|
|
* None.
|
|
*
|
|
* Side effects:
|
|
* None.
|
|
*
|
|
* ----------------------------------------------------------------------------
|
|
*/
|
|
static void
|
|
mfbCursorColor(color)
|
|
unsigned int color[];
|
|
{
|
|
register int i, j;
|
|
|
|
for (i = 0; i < 6; i++)
|
|
cursor_RGB[i] = (u_char)(color[i] >> 8);
|
|
|
|
mfbRestoreCursorColor();
|
|
}
|
|
|
|
/*
|
|
*----------------------------------------------------------------------
|
|
*
|
|
* PosCursor --
|
|
*
|
|
* Postion the cursor.
|
|
*
|
|
* Results:
|
|
* None.
|
|
*
|
|
* Side effects:
|
|
* None.
|
|
*
|
|
*----------------------------------------------------------------------
|
|
*/
|
|
void
|
|
mfbPosCursor(x, y)
|
|
register int x, y;
|
|
{
|
|
bt431_regmap_t *regs = (bt431_regmap_t *)(mfbfb.fr_chipaddr +
|
|
MFB_OFFSET_BT431);
|
|
register struct pmax_fb *fp = &mfbfb;
|
|
|
|
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 */
|
|
|
|
#define lo(v) ((v)&0xff)
|
|
#define hi(v) (((v)&0xf00)>>8)
|
|
|
|
/*
|
|
* Cx = x + D + H - P
|
|
* P = 37 if 1:1, 52 if 4:1, 57 if 5:1
|
|
* D = pixel skew between outdata and external data
|
|
* H = pixels between HSYNCH falling and active video
|
|
*
|
|
* Cy = y + V - 32
|
|
* V = scanlines between HSYNCH falling, two or more
|
|
* clocks after VSYNCH falling, and active video
|
|
*/
|
|
|
|
bt431_write_reg(regs, BT431_REG_CXLO, lo(x + 360));
|
|
BT431_WRITE_REG_AUTOI(regs, hi(x + 360));
|
|
BT431_WRITE_REG_AUTOI(regs, lo(y + 36));
|
|
BT431_WRITE_REG_AUTOI(regs, hi(y + 36));
|
|
}
|
|
|
|
/*
|
|
* ----------------------------------------------------------------------------
|
|
*
|
|
* InitColorMap --
|
|
*
|
|
* Initialize the color map.
|
|
*
|
|
* Results:
|
|
* None.
|
|
*
|
|
* Side effects:
|
|
* The colormap is initialized appropriately.
|
|
*
|
|
* ----------------------------------------------------------------------------
|
|
*/
|
|
static void
|
|
mfbInitColorMap(blackpix)
|
|
int blackpix;
|
|
{
|
|
ColorMap cm;
|
|
register int i;
|
|
|
|
cm.index = 0;
|
|
if (blackpix)
|
|
cm.Entry.red = cm.Entry.green = cm.Entry.blue = 0xffff;
|
|
else
|
|
cm.Entry.red = cm.Entry.green = cm.Entry.blue = 0;
|
|
mfbLoadColorMap(&cm);
|
|
if (blackpix)
|
|
cm.Entry.red = cm.Entry.green = cm.Entry.blue = 0;
|
|
else
|
|
cm.Entry.red = cm.Entry.green = cm.Entry.blue = 0xffff;
|
|
for (i = 1; i < 16; i++) {
|
|
cm.index = i;
|
|
mfbLoadColorMap(&cm);
|
|
}
|
|
|
|
for (i = 0; i < 3; i++) {
|
|
cursor_RGB[i] = 0;
|
|
cursor_RGB[i + 3] = 0xff;
|
|
}
|
|
mfbRestoreCursorColor();
|
|
}
|
|
|
|
/*
|
|
* ----------------------------------------------------------------------------
|
|
*
|
|
* LoadColorMap --
|
|
*
|
|
* Load the color map.
|
|
*
|
|
* Results:
|
|
* None.
|
|
*
|
|
* Side effects:
|
|
* The color map is loaded.
|
|
*
|
|
* ----------------------------------------------------------------------------
|
|
*/
|
|
static void
|
|
mfbLoadColorMap(ptr)
|
|
ColorMap *ptr;
|
|
{
|
|
bt455_regmap_t *regs = (bt455_regmap_t *)(mfbfb.fr_chipaddr +
|
|
MFB_OFFSET_BT455);
|
|
|
|
if (ptr->index > 15)
|
|
return;
|
|
|
|
BT455_SELECT_ENTRY(regs, ptr->index);
|
|
regs->addr_cmap_data = ptr->Entry.red >> 12;
|
|
MachEmptyWriteBuffer();
|
|
regs->addr_cmap_data = ptr->Entry.green >> 12;
|
|
MachEmptyWriteBuffer();
|
|
regs->addr_cmap_data = ptr->Entry.blue >> 12;
|
|
MachEmptyWriteBuffer();
|
|
}
|
|
|
|
/*
|
|
* Video on/off state.
|
|
*/
|
|
static struct vstate {
|
|
u_char color0[6]; /* saved color map entry zero */
|
|
u_char off; /* TRUE if display is off */
|
|
u_char cursor[6]; /* saved cursor color */
|
|
} vstate;
|
|
|
|
/*
|
|
* ----------------------------------------------------------------------------
|
|
*
|
|
* bt455_video_on
|
|
*
|
|
* Enable the video display.
|
|
*
|
|
* Results:
|
|
* None.
|
|
*
|
|
* Side effects:
|
|
* The display is enabled.
|
|
*
|
|
* ----------------------------------------------------------------------------
|
|
*/
|
|
static void
|
|
bt455_video_on()
|
|
{
|
|
register int i;
|
|
bt455_regmap_t *regs = (bt455_regmap_t *)(mfbfb.fr_chipaddr +
|
|
MFB_OFFSET_BT455);
|
|
|
|
if (!vstate.off)
|
|
return;
|
|
|
|
/* restore old color map entry zero */
|
|
BT455_SELECT_ENTRY(regs, 0);
|
|
for (i = 0; i < 6; i++) {
|
|
regs->addr_cmap_data = vstate.color0[i];
|
|
MachEmptyWriteBuffer();
|
|
cursor_RGB[i] = vstate.cursor[i];
|
|
}
|
|
mfbRestoreCursorColor();
|
|
vstate.off = 0;
|
|
}
|
|
|
|
/*
|
|
* ----------------------------------------------------------------------------
|
|
*
|
|
* bt455_video_off
|
|
*
|
|
* Disable the video display.
|
|
*
|
|
* Results:
|
|
* None.
|
|
*
|
|
* Side effects:
|
|
* The display is disabled.
|
|
*
|
|
* ----------------------------------------------------------------------------
|
|
*/
|
|
static void
|
|
bt455_video_off()
|
|
{
|
|
register int i;
|
|
bt455_regmap_t *regs = (bt455_regmap_t *)(mfbfb.fr_chipaddr +
|
|
MFB_OFFSET_BT455);
|
|
ColorMap cm;
|
|
|
|
if (vstate.off)
|
|
return;
|
|
|
|
/* save old color map entry zero */
|
|
BT455_SELECT_ENTRY(regs, 0);
|
|
for (i = 0; i < 6; i++) {
|
|
vstate.color0[i] = regs->addr_cmap_data;
|
|
vstate.cursor[i] = cursor_RGB[i];
|
|
cursor_RGB[i] = 0;
|
|
}
|
|
|
|
/* set color map entry zero to zero */
|
|
cm.index = 0;
|
|
cm.Entry.red = cm.Entry.green = cm.Entry.blue = 0;
|
|
mfbLoadColorMap(&cm);
|
|
cm.index = 1;
|
|
mfbLoadColorMap(&cm);
|
|
|
|
mfbRestoreCursorColor();
|
|
vstate.off = 1;
|
|
}
|
|
|
|
/*
|
|
* mfb keyboard and mouse input. Just punt to the generic ones in fb.c
|
|
*/
|
|
void
|
|
mfbKbdEvent(ch)
|
|
int ch;
|
|
{
|
|
fbKbdEvent(ch, &mfbfb);
|
|
}
|
|
|
|
void
|
|
mfbMouseEvent(newRepPtr)
|
|
MouseReport *newRepPtr;
|
|
{
|
|
fbMouseEvent(newRepPtr, &mfbfb);
|
|
}
|
|
|
|
void
|
|
mfbMouseButtons(newRepPtr)
|
|
MouseReport *newRepPtr;
|
|
{
|
|
fbMouseButtons(newRepPtr, &mfbfb);
|
|
}
|
|
|
|
/*
|
|
* Configure the mouse and keyboard based on machine type
|
|
*/
|
|
static void
|
|
mfbConfigMouse()
|
|
{
|
|
int s;
|
|
|
|
s = spltty();
|
|
switch (pmax_boardtype) {
|
|
#if NDC > 0
|
|
case DS_3MAX:
|
|
dcDivertXInput = mfbKbdEvent;
|
|
dcMouseEvent = mfbMouseEvent;
|
|
dcMouseButtons = mfbMouseButtons;
|
|
break;
|
|
#endif
|
|
#if NSCC > 1
|
|
case DS_3MIN:
|
|
sccDivertXInput = mfbKbdEvent;
|
|
sccMouseEvent = mfbMouseEvent;
|
|
sccMouseButtons = mfbMouseButtons;
|
|
break;
|
|
#endif
|
|
#if NDTOP > 0
|
|
case DS_MAXINE:
|
|
dtopDivertXInput = mfbKbdEvent;
|
|
dtopMouseEvent = mfbMouseEvent;
|
|
dtopMouseButtons = mfbMouseButtons;
|
|
break;
|
|
#endif
|
|
default:
|
|
printf("Can't configure mouse/keyboard\n");
|
|
};
|
|
splx(s);
|
|
}
|
|
|
|
/*
|
|
* and deconfigure them
|
|
*/
|
|
static void
|
|
mfbDeconfigMouse()
|
|
{
|
|
int s;
|
|
|
|
s = spltty();
|
|
switch (pmax_boardtype) {
|
|
#if NDC > 0
|
|
case DS_3MAX:
|
|
dcDivertXInput = (void (*)())0;
|
|
dcMouseEvent = (void (*)())0;
|
|
dcMouseButtons = (void (*)())0;
|
|
break;
|
|
#endif
|
|
#if NSCC > 1
|
|
case DS_3MIN:
|
|
sccDivertXInput = (void (*)())0;
|
|
sccMouseEvent = (void (*)())0;
|
|
sccMouseButtons = (void (*)())0;
|
|
break;
|
|
#endif
|
|
#if NDTOP > 0
|
|
case DS_MAXINE:
|
|
dtopDivertXInput = (void (*)())0;
|
|
dtopMouseEvent = (void (*)())0;
|
|
dtopMouseButtons = (void (*)())0;
|
|
break;
|
|
#endif
|
|
default:
|
|
printf("Can't deconfigure mouse/keyboard\n");
|
|
};
|
|
}
|
|
|
|
/*
|
|
* Generic register access
|
|
*/
|
|
static void
|
|
bt431_select_reg(regs, regno)
|
|
bt431_regmap_t *regs;
|
|
{
|
|
regs->addr_lo = SET_VALUE(regno & 0xff);
|
|
regs->addr_hi = SET_VALUE((regno >> 8) & 0xff);
|
|
MachEmptyWriteBuffer();
|
|
}
|
|
|
|
static void
|
|
bt431_write_reg(regs, regno, val)
|
|
bt431_regmap_t *regs;
|
|
{
|
|
bt431_select_reg(regs, regno);
|
|
regs->addr_reg = SET_VALUE(val);
|
|
MachEmptyWriteBuffer();
|
|
}
|
|
|
|
static u_char
|
|
bt431_read_reg(regs, regno)
|
|
bt431_regmap_t *regs;
|
|
{
|
|
bt431_select_reg(regs, regno);
|
|
return (GET_VALUE(regs->addr_reg));
|
|
}
|
|
|
|
static void
|
|
bt431_init(regs)
|
|
bt431_regmap_t *regs;
|
|
{
|
|
register int i;
|
|
|
|
/* use 4:1 input mux */
|
|
bt431_write_reg(regs, BT431_REG_CMD,
|
|
BT431_CMD_CURS_ENABLE|BT431_CMD_OR_CURSORS|
|
|
BT431_CMD_4_1_MUX|BT431_CMD_THICK_1);
|
|
|
|
/* home cursor */
|
|
BT431_WRITE_REG_AUTOI(regs, 0x00);
|
|
BT431_WRITE_REG_AUTOI(regs, 0x00);
|
|
BT431_WRITE_REG_AUTOI(regs, 0x00);
|
|
BT431_WRITE_REG_AUTOI(regs, 0x00);
|
|
|
|
/* no crosshair window */
|
|
BT431_WRITE_REG_AUTOI(regs, 0x00);
|
|
BT431_WRITE_REG_AUTOI(regs, 0x00);
|
|
BT431_WRITE_REG_AUTOI(regs, 0x00);
|
|
BT431_WRITE_REG_AUTOI(regs, 0x00);
|
|
BT431_WRITE_REG_AUTOI(regs, 0x00);
|
|
BT431_WRITE_REG_AUTOI(regs, 0x00);
|
|
BT431_WRITE_REG_AUTOI(regs, 0x00);
|
|
BT431_WRITE_REG_AUTOI(regs, 0x00);
|
|
}
|
|
#endif /* NMFB */
|