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NetBSD/sys/arch/pmax/dev/sfb.c
jonathan 9b50b450f7 Add DS_3MAXPLUS (kn03) to switch statements for redirecting input 
to and from SCC devices. (The 3MIN was supported but not the 3MAXPLUS).
1995-08-01 23:15:26 +00:00

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/*-
* 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.
*
* from: @(#)sfb.c 8.1 (Berkeley) 6/10/93
* $Id: sfb.c,v 1.2 1995/08/01 23:15:26 jonathan Exp $
*/
/*
* 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)";
* $Id: sfb.c,v 1.2 1995/08/01 23:15:26 jonathan Exp $
*/
/*
* 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.
*/
#include <sfb.h>
#if NSFB > 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 <sys/tty.h>
#include <vm/vm.h>
#include <machine/machConst.h>
#include <machine/pmioctl.h>
#include <pmax/pmax/maxine.h>
#include <pmax/pmax/cons.h>
#include <pmax/pmax/pmaxtype.h>
#include <pmax/dev/device.h>
#include <pmax/dev/cfbreg.h>
#include <pmax/dev/fbreg.h>
#include <dc.h>
#include <dtop.h>
#include <scc.h>
#define PMAX /* enable /dev/pm compatibility */
/*
* These need to be mapped into user space.
*/
struct fbuaccess sfbu [NSFB];
struct pmax_fb sfbfb [NSFB];
/*
* Forward references.
*/
int sfbprobe (struct pmax_ctlr *);
int sfbopen (dev_t, int);
int sfbclose (dev_t, int);
int sfbioctl (dev_t, int, caddr_t, int, struct proc *);
int sfbselect (dev_t, int, struct proc *);
int sfbmap (dev_t, int, int);
static void sfbLoadCursor (u_short *, struct pmax_fb *);
static void bt459_set_cursor_ram (int, u_char, struct pmax_fb *);
static void bt459_select_reg (bt459_regmap_t *, int);
static void bt459_write_reg (bt459_regmap_t *, int, int);
static u_char bt459_read_reg (bt459_regmap_t *, int);
int sfbinit (char *, int);
static void sfbScreenInit (struct pmax_fb *);
static void sfbRestoreCursorColor (struct pmax_fb *);
static void sfbCursorColor (unsigned int [], struct pmax_fb *);
void sfbPosCursor (int, int, struct pmax_fb *);
static void sfbInitColorMap (struct pmax_fb *);
static void sfbLoadColorMap (ColorMap *, struct pmax_fb *);
static void bt459_video_on (struct pmax_fb *);
static void bt459_video_off (struct pmax_fb *);
void sfbKbdEvent (int);
void sfbMouseEvent (MouseReport *);
void sfbMouseButtons (MouseReport *);
static void sfbConfigMouse (void);
static void sfbDeconfigMouse (void);
#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]; */
int sfbprobe();
struct driver sfbdriver = {
"sfb", sfbprobe, 0, 0,
};
#define SFB_OFFSET_VRAM 0x201000 /* from module's base */
#define SFB_OFFSET_BT459 0x1C0000 /* Bt459 registers */
#define SFB_ASIC_OFFSET 0x100000 /* SFB ASIC registers... */
#define SFB_COPY_REG0 0x100000 /* Copy Buffer Register0 */
#define SFB_COPY_REG1 0x100004 /* Copy Buffer Register1 */
#define SFB_COPY_REG2 0x100008 /* Copy Buffer Register2 */
#define SFB_COPY_REG3 0x10000C /* Copy Buffer Register3 */
#define SFB_COPY_REG4 0x100010 /* Copy Buffer Register4 */
#define SFB_COPY_REG5 0x100014 /* Copy Buffer Register5 */
#define SFB_COPY_REG6 0x100018 /* Copy Buffer Register6 */
#define SFB_COPY_REG7 0x10001C /* Copy Buffer Register7 */
#define SFB_FOREGROUND 0x100020 /* Foreground */
#define SFB_BACKGROUND 0x100024 /* Background */
#define SFB_PLANEMASK 0x100028 /* PlaneMask */
#define SFB_PIXELMASK 0x10002C /* PixelMask Register */
#define SFB_MODE 0x100030 /* Mode Register */
#define SFB_BOOL_OP 0x100034 /* Boolean Op Register */
#define SFB_PIXELSHIFT 0x100038 /* PixelShift Register */
#define SFB_ADDRESS 0x10003C /* Address Register */
#define SFB_BRESENHAM1 0x100040 /* Bresenham Register 1 */
#define SFB_BRESENHAM2 0x100044 /* Bresenham Register 2 */
#define SFB_BRESENHAM3 0x100048 /* Bresenham Register 3 */
#define SFB_BCONT 0x10004C /* BCont */
#define SFB_DEEP 0x100050 /* Deep Register */
#define SFB_START 0x100054 /* Start Register */
#define SFB_CLEAR 0x100058 /* Clear Interrupt */
#define SFB_VREFRESH_COUNT 0x100060 /* Video Refresh Count */
#define SFB_VHORIZONTAL 0x100064 /* Video Horizontal Setup */
#define SFB_VVERTICAL 0x100068 /* Video Vertical Setup */
#define SFB_VBASE 0x10006C /* Video Base Address */
#define SFB_VVALID 0x100070 /* Video Valid */
#define SFB_INTERRUPT_ENABLE 0x100074 /* Enable/disable interrupts */
#define SFB_TCCLK 0x100078 /* TCCLK count */
#define SFB_VIDCLK 0x10007C /* VIDCLK count */
#define SFB_FB_SIZE 0x1FF000 /* frame buffer size */
/* No analog (from cfb.c) */
/* #define SFB_OFFSET_IREQ 0x300000 /* Interrupt req. control */
/* #define SFB_OFFSET_ROM 0x100000 /* Diagnostic ROM */
/* #define SFB_OFFSET_RESET 0x3c0000 /* Bt459 resets on writes */
/*
* Test to see if device is present.
* Return true if found and initialized ok.
*/
/*ARGSUSED*/
sfbprobe(cp)
register struct pmax_ctlr *cp;
{
register struct pmax_fb *fp = &sfbfb [cp -> pmax_unit];
if (cp -> pmax_unit > NSFB)
return (0);
if (!fp->initialized && !sfbinit(cp -> pmax_addr, cp -> pmax_unit))
return (0);
printf("sfb%d at nexus0 csr 0x%x priority %d\n",
cp->pmax_unit, cp->pmax_addr, cp->pmax_pri);
return (1);
}
/*ARGSUSED*/
sfbopen(dev, flag)
dev_t dev;
int flag;
{
register struct pmax_fb *fp = &sfbfb [minor(dev)];
int s;
if (minor(dev) > NSFB)
return (ENXIO);
if (!fp->initialized)
return (ENXIO);
if (fp->GraphicsOpen)
return (EBUSY);
fp->GraphicsOpen = 1;
sfbInitColorMap(fp);
/*
* 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);
sfbConfigMouse();
return (0);
}
/*ARGSUSED*/
sfbclose(dev, flag)
dev_t dev;
int flag;
{
register struct pmax_fb *fp = &sfbfb [minor (dev)];
int s;
if (minor (dev) > NSFB)
return (EBADF);
if (!fp->GraphicsOpen)
return (EBADF);
fp->GraphicsOpen = 0;
sfbInitColorMap(fp);
sfbDeconfigMouse();
sfbScreenInit(fp);
bzero((caddr_t)fp->fr_addr, 1280 * 1024);
sfbPosCursor(fp->col * 8, fp->row * 15, fp);
return (0);
}
/*ARGSUSED*/
sfbioctl(dev, cmd, data, flag, p)
dev_t dev;
int cmd;
caddr_t data;
int flag;
struct proc *p;
{
register struct pmax_fb *fp = &sfbfb [minor (dev)];
int s;
if (minor (dev) > NSFB)
return (EBADF);
switch (cmd) {
case QIOCGINFO:
/* return (fbmmap(fp, dev, data, p)); */
return -1;
case QIOCPMSTATE:
/*
* Set mouse state.
*/
fp->fbu->scrInfo.mouse = *(pmCursor *)data;
sfbPosCursor(fp->fbu->scrInfo.mouse.x,
fp->fbu->scrInfo.mouse.y, fp);
break;
case QIOCINIT:
/*
* Initialize the screen.
*/
sfbScreenInit(fp);
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:
sfbLoadCursor((unsigned short *)data, fp);
break;
case QIOWCURSORCOLOR:
sfbCursorColor((unsigned int *)data, fp);
break;
case QIOSETCMAP:
sfbLoadColorMap((ColorMap *)data, fp);
break;
case QIOKERNLOOP:
sfbConfigMouse();
break;
case QIOKERNUNLOOP:
sfbDeconfigMouse();
break;
case QIOVIDEOON:
sfbRestoreCursorColor(fp);
bt459_video_on(fp);
break;
case QIOVIDEOOFF:
bt459_video_off(fp);
break;
default:
printf("sfb0: Unknown ioctl command %x\n", cmd);
return (EINVAL);
}
return (0);
}
sfbselect(dev, flag, p)
dev_t dev;
int flag;
struct proc *p;
{
struct pmax_fb *fp = &sfbfb [minor (dev)] ;
if (minor (dev) > NSFB)
return (EBADF);
switch (flag) {
case FREAD:
if (fp->fbu->scrInfo.qe.eHead != fp->fbu->scrInfo.qe.eTail)
return (1);
selrecord(p, &fp->selp);
break;
}
return (0);
}
/*
* Return the physical page number that corresponds to byte offset 'off'.
*/
/*ARGSUSED*/
sfbmap(dev, off, prot)
dev_t dev;
{
int len;
struct pmax_fb *fp = &sfbfb [minor (dev)] ;
if (minor (dev) > NSFB)
return (EBADF);
len = pmax_round_page(((vm_offset_t)(fp -> fbu) & PGOFSET)
+ sizeof (struct fbuaccess));
if (off < len)
return pmax_btop(MACH_CACHED_TO_PHYS(fp -> fbu) + off);
off -= len;
if (off >= fp -> fr_size)
return (-1);
return pmax_btop(MACH_UNCACHED_TO_PHYS(fp -> fr_addr) + off);
}
static u_char cursor_RGB[6]; /* cursor color 2 & 3 */
/*
* XXX This assumes 2bits/cursor pixel so that the 1Kbyte cursor RAM
* defines a 64x64 cursor. If the bt459 does not map the cursor RAM
* this way, this code is Screwed!
*/
static void
sfbLoadCursor(cursor, fp)
u_short *cursor;
struct pmax_fb *fp;
{
#ifdef PMAX
register int i, j, k, pos;
register u_short ap, bp, out;
/*
* 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.
*/
pos = 0;
for (k = 0; k < 16; k++) {
ap = *cursor;
bp = *(cursor + 16);
j = 0;
while (j < 4) {
out = 0;
for (i = 0; i < 4; i++) {
#ifndef CURSOR_EB
out = (out << 2) | ((ap & 0x1) << 1) |
(bp & 0x1);
#else
out = ((out >> 2) & 0x3f) |
((ap & 0x1) << 7) |
((bp & 0x1) << 6);
#endif
ap >>= 1;
bp >>= 1;
}
bt459_set_cursor_ram(pos, out, fp);
pos++;
j++;
}
while (j < 16) {
bt459_set_cursor_ram(pos, 0, fp);
pos++;
j++;
}
cursor++;
}
while (pos < 1024) {
bt459_set_cursor_ram(pos, 0, fp);
pos++;
}
#endif /* PMAX */
}
/*
* Set a cursor ram value.
*/
static void
bt459_set_cursor_ram(pos, val, fp)
int pos;
register u_char val;
struct pmax_fb *fp;
{
register bt459_regmap_t *regs;
register int cnt;
u_char nval;
regs = (bt459_regmap_t *)(fp -> fr_addr
- SFB_OFFSET_VRAM + SFB_OFFSET_BT459);
cnt = 0;
do {
bt459_write_reg(regs, BT459_REG_CRAM_BASE + pos, val);
nval = bt459_read_reg(regs, BT459_REG_CRAM_BASE + pos);
} while (val != nval && ++cnt < 10);
}
/*
* Generic register access
*/
static void
bt459_select_reg(regs, regno)
bt459_regmap_t *regs;
{
regs->addr_lo = regno;
regs->addr_hi = regno >> 8;
MachEmptyWriteBuffer();
}
static void
bt459_write_reg(regs, regno, val)
bt459_regmap_t *regs;
{
regs->addr_lo = regno;
regs->addr_hi = regno >> 8;
MachEmptyWriteBuffer();
regs->addr_reg = val;
MachEmptyWriteBuffer();
}
static u_char
bt459_read_reg(regs, regno)
bt459_regmap_t *regs;
{
regs->addr_lo = regno;
regs->addr_hi = regno >> 8;
MachEmptyWriteBuffer();
return (regs->addr_reg);
}
/*
* Initialization
*/
int
sfbinit(base, unit)
char *base;
int unit;
{
register bt459_regmap_t *regs;
register struct pmax_fb *fp;
u_char foo;
extern struct tty *fbconstty;
printf ("sfbinit: %x %d\n", base, unit);
if (unit > NSFB)
return (0);
fp = &sfbfb [unit];
/* check for no frame buffer */
if (badaddr(base + SFB_OFFSET_VRAM, 4))
return (0);
fp->isMono = 0;
fp->fr_addr = (char *)(base + SFB_OFFSET_VRAM);
fp->fr_size = SFB_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(&sfbu
[unit]));
fp->posCursor = sfbPosCursor;
if (tb_kbdmouseconfig(fp))
return (0);
/*
* Initialize the screen.
*/
regs = (bt459_regmap_t *)(fp->fr_addr
- SFB_OFFSET_VRAM + SFB_OFFSET_BT459);
foo = bt459_read_reg (regs, BT459_REG_ID);
if (bt459_read_reg(regs, BT459_REG_ID) != 0x4a)
return (0);
#ifdef FOO /* @@@ DON'T KNOW HOW TO DO THIS @@@ */
/* Reset the chip */
*(volatile int *)(fp->fr_addr + SFB_OFFSET_RESET) = 0;
DELAY(2000); /* ???? check right time on specs! ???? */
#endif /* FOO */
/* use 4:1 input mux */
bt459_write_reg(regs, BT459_REG_CMD0, 0x40);
/* no zooming, no panning */
bt459_write_reg(regs, BT459_REG_CMD1, 0x00);
/*
* signature test, X-windows cursor, no overlays, SYNC* PLL,
* normal RAM select, 7.5 IRE pedestal, do sync
*/
#ifndef PMAX
bt459_write_reg(regs, BT459_REG_CMD2, 0xc2);
#else /* PMAX */
bt459_write_reg(regs, BT459_REG_CMD2, 0xc0);
#endif /* PMAX */
/* get all pixel bits */
bt459_write_reg(regs, BT459_REG_PRM, 0xff);
/* no blinking */
bt459_write_reg(regs, BT459_REG_PBM, 0x00);
/* no overlay */
bt459_write_reg(regs, BT459_REG_ORM, 0x00);
/* no overlay blink */
bt459_write_reg(regs, BT459_REG_OBM, 0x00);
/* no interleave, no underlay */
bt459_write_reg(regs, BT459_REG_ILV, 0x00);
/* normal operation, no signature analysis */
bt459_write_reg(regs, BT459_REG_TEST, 0x00);
/*
* no blinking, 1bit cross hair, XOR reg&crosshair,
* no crosshair on either plane 0 or 1,
* regular cursor on both planes.
*/
bt459_write_reg(regs, BT459_REG_CCR, 0xc0);
/* home cursor */
bt459_write_reg(regs, BT459_REG_CXLO, 0x00);
bt459_write_reg(regs, BT459_REG_CXHI, 0x00);
bt459_write_reg(regs, BT459_REG_CYLO, 0x00);
bt459_write_reg(regs, BT459_REG_CYHI, 0x00);
/* no crosshair window */
bt459_write_reg(regs, BT459_REG_WXLO, 0x00);
bt459_write_reg(regs, BT459_REG_WXHI, 0x00);
bt459_write_reg(regs, BT459_REG_WYLO, 0x00);
bt459_write_reg(regs, BT459_REG_WYHI, 0x00);
bt459_write_reg(regs, BT459_REG_WWLO, 0x00);
bt459_write_reg(regs, BT459_REG_WWHI, 0x00);
bt459_write_reg(regs, BT459_REG_WHLO, 0x00);
bt459_write_reg(regs, BT459_REG_WHHI, 0x00);
/*
* Initialize screen info.
*/
fp->fbu->scrInfo.max_row = 68;
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.
*/
sfbInitColorMap(fp);
sfbScreenInit(fp);
/* fbScroll(fp); */
/* Initialize the SFB ASIC... */
*((int *)(base + SFB_MODE)) = 0;
*((int *)(base + SFB_PLANEMASK)) = 0xFFFFFFFF;
fp->initialized = 1;
if (!fbconstty) {
int i;
for (i = 0; i < 1024; i++) {
fp -> fr_addr [i] = i >> 2;
fp -> fr_addr [i + 1280] = i >> 2;
fp -> fr_addr [i + 2560] = i >> 2;
fp -> fr_addr [i + 3840] = i >> 2;
}
cons_fb_init (fp, 8, 1280, 256);
}
return (1);
}
/*
* ----------------------------------------------------------------------------
*
* sfbScreenInit --
*
* Initialize the screen.
*
* Results:
* None.
*
* Side effects:
* The screen is initialized.
*
* ----------------------------------------------------------------------------
*/
static void
sfbScreenInit(fp)
struct pmax_fb *fp;
{
/*
* 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 = 67;
fp->col = 0;
/*
* Load the cursor with the default values
*
*/
/* sfbLoadCursor(defCursor, fp); */
}
/*
* ----------------------------------------------------------------------------
*
* RestoreCursorColor --
*
* Routine to restore the color of the cursor.
*
* Results:
* None.
*
* Side effects:
* None.
*
* ----------------------------------------------------------------------------
*/
static void
sfbRestoreCursorColor(fp)
struct pmax_fb *fp;
{
bt459_regmap_t *regs;
register int i;
regs = (bt459_regmap_t *)(fp -> fr_addr
- SFB_OFFSET_VRAM + SFB_OFFSET_BT459);
#ifndef PMAX
bt459_select_reg(regs, BT459_REG_CCOLOR_2);
for (i = 0; i < 6; i++) {
regs->addr_reg = cursor_RGB[i];
MachEmptyWriteBuffer();
}
#else /* PMAX */
bt459_select_reg(regs, BT459_REG_CCOLOR_1);
for (i = 0; i < 3; i++) {
regs->addr_reg = cursor_RGB[i];
MachEmptyWriteBuffer();
}
bt459_select_reg(regs, BT459_REG_CCOLOR_3);
for (i = 3; i < 6; i++) {
regs->addr_reg = cursor_RGB[i];
MachEmptyWriteBuffer();
}
#endif /* PMAX */
}
/*
* ----------------------------------------------------------------------------
*
* CursorColor --
*
* Set the color of the cursor.
*
* Results:
* None.
*
* Side effects:
* None.
*
* ----------------------------------------------------------------------------
*/
static void
sfbCursorColor(color, fp)
unsigned int color[];
struct pmax_fb *fp;
{
register int i, j;
for (i = 0; i < 6; i++)
cursor_RGB[i] = (u_char)(color[i] >> 8);
sfbRestoreCursorColor(fp);
}
/*
*----------------------------------------------------------------------
*
* PosCursor --
*
* Postion the cursor.
*
* Results:
* None.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
void
sfbPosCursor(x, y, fp)
register int x, y;
struct pmax_fb *fp;
{
bt459_regmap_t *regs;
regs = (bt459_regmap_t *)(fp -> fr_addr
- SFB_OFFSET_VRAM + SFB_OFFSET_BT459);
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 */
x += 369;
y += 34;
bt459_select_reg(regs, BT459_REG_CXLO);
regs->addr_reg = x;
MachEmptyWriteBuffer();
regs->addr_reg = x >> 8;
MachEmptyWriteBuffer();
regs->addr_reg = y;
MachEmptyWriteBuffer();
regs->addr_reg = y >> 8;
MachEmptyWriteBuffer();
}
/*
* ----------------------------------------------------------------------------
*
* InitColorMap --
*
* Initialize the color map.
*
* Results:
* None.
*
* Side effects:
* The colormap is initialized appropriately.
*
* ----------------------------------------------------------------------------
*/
static void
sfbInitColorMap(fp)
struct pmax_fb *fp;
{
bt459_regmap_t *regs;
register int i;
regs = (bt459_regmap_t *)(fp -> fr_addr
- SFB_OFFSET_VRAM + SFB_OFFSET_BT459);
bt459_select_reg(regs, 0);
regs->addr_cmap = 0; MachEmptyWriteBuffer();
regs->addr_cmap = 0; MachEmptyWriteBuffer();
regs->addr_cmap = 0; MachEmptyWriteBuffer();
for (i = 0; i < 256; i++) {
regs->addr_cmap = 0xff; MachEmptyWriteBuffer();
regs->addr_cmap = 0xff; MachEmptyWriteBuffer();
regs->addr_cmap = 0xff; MachEmptyWriteBuffer();
}
for (i = 0; i < 3; i++) {
cursor_RGB[i] = 0x00;
cursor_RGB[i + 3] = 0xff;
}
sfbRestoreCursorColor(fp);
}
/*
* ----------------------------------------------------------------------------
*
* LoadColorMap --
*
* Load the color map.
*
* Results:
* None.
*
* Side effects:
* The color map is loaded.
*
* ----------------------------------------------------------------------------
*/
static void
sfbLoadColorMap(ptr, fp)
ColorMap *ptr;
struct pmax_fb *fp;
{
bt459_regmap_t *regs;
regs = (bt459_regmap_t *)(fp -> fr_addr
- SFB_OFFSET_VRAM + SFB_OFFSET_BT459);
if (ptr->index > 256)
return;
bt459_select_reg(regs, ptr->index);
regs->addr_cmap = ptr->Entry.red; MachEmptyWriteBuffer();
regs->addr_cmap = ptr->Entry.green; MachEmptyWriteBuffer();
regs->addr_cmap = ptr->Entry.blue; MachEmptyWriteBuffer();
}
/*
* Video on/off state.
*/
static struct vstate {
u_char color0[3]; /* saved color map entry zero */
u_char off; /* TRUE if display is off */
} vstate;
/*
* ----------------------------------------------------------------------------
*
* bt459_video_on
*
* Enable the video display.
*
* Results:
* None.
*
* Side effects:
* The display is enabled.
*
* ----------------------------------------------------------------------------
*/
static void
bt459_video_on(fp)
struct pmax_fb *fp;
{
bt459_regmap_t *regs;
regs = (bt459_regmap_t *)(fp -> fr_addr
- SFB_OFFSET_VRAM + SFB_OFFSET_BT459);
if (!vstate.off)
return;
/* restore old color map entry zero */
bt459_select_reg(regs, 0);
regs->addr_cmap = vstate.color0[0];
MachEmptyWriteBuffer();
regs->addr_cmap = vstate.color0[1];
MachEmptyWriteBuffer();
regs->addr_cmap = vstate.color0[2];
MachEmptyWriteBuffer();
/* enable normal display */
bt459_write_reg(regs, BT459_REG_PRM, 0xff);
bt459_write_reg(regs, BT459_REG_CCR, 0xc0);
vstate.off = 0;
}
/*
* ----------------------------------------------------------------------------
*
* bt459_video_off
*
* Disable the video display.
*
* Results:
* None.
*
* Side effects:
* The display is disabled.
*
* ----------------------------------------------------------------------------
*/
static void
bt459_video_off(fp)
struct pmax_fb *fp;
{
bt459_regmap_t *regs;
regs = (bt459_regmap_t *)(fp -> fr_addr
- SFB_OFFSET_VRAM + SFB_OFFSET_BT459);
if (vstate.off)
return;
/* save old color map entry zero */
bt459_select_reg(regs, 0);
vstate.color0[0] = regs->addr_cmap;
vstate.color0[1] = regs->addr_cmap;
vstate.color0[2] = regs->addr_cmap;
/* set color map entry zero to zero */
bt459_select_reg(regs, 0);
regs->addr_cmap = 0;
MachEmptyWriteBuffer();
regs->addr_cmap = 0;
MachEmptyWriteBuffer();
regs->addr_cmap = 0;
MachEmptyWriteBuffer();
/* disable display */
bt459_write_reg(regs, BT459_REG_PRM, 0);
bt459_write_reg(regs, BT459_REG_CCR, 0);
vstate.off = 1;
}
/*
* sfb keyboard and mouse input. Just punt to the generic ones in fb.c
*/
void
sfbKbdEvent(ch)
int ch;
{
fbKbdEvent(ch, &sfbfb [0]);
}
void
sfbMouseEvent(newRepPtr)
MouseReport *newRepPtr;
{
fbMouseEvent(newRepPtr, &sfbfb [0]);
}
void
sfbMouseButtons(newRepPtr)
MouseReport *newRepPtr;
{
fbMouseButtons(newRepPtr, &sfbfb [0]);
}
/*
* Configure the mouse and keyboard based on machine type
*/
static void
sfbConfigMouse()
{
int s;
s = spltty();
switch (pmax_boardtype) {
#if NDC > 0
case DS_3MAX:
dcDivertXInput = sfbKbdEvent;
dcMouseEvent = sfbMouseEvent;
dcMouseButtons = sfbMouseButtons;
break;
#endif
#if NSCC > 1
case DS_3MIN:
case DS_3MAXPLUS:
sccDivertXInput = sfbKbdEvent;
sccMouseEvent = sfbMouseEvent;
sccMouseButtons = sfbMouseButtons;
break;
#endif
#if NDTOP > 0
case DS_MAXINE:
dtopDivertXInput = sfbKbdEvent;
dtopMouseEvent = sfbMouseEvent;
dtopMouseButtons = sfbMouseButtons;
break;
#endif
default:
printf("Can't configure mouse/keyboard\n");
};
splx(s);
}
/*
* and deconfigure them
*/
static void
sfbDeconfigMouse()
{
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:
case DS_3MAXPLUS:
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");
};
}
#endif /* NSFB */
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