4.4BSD/usr/src/sys/pmax/dev/pm.c
/*-
* 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.
*
* @(#)pm.c 8.1 (Berkeley) 6/10/93
*/
/*
* 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 <pm.h>
#include <dc.h>
#if NPM > 0
#if NDC == 0
pm needs dc device
#else
#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/dc7085cons.h>
#include <machine/pmioctl.h>
#include <pmax/pmax/kn01.h>
#include <pmax/pmax/pmaxtype.h>
#include <pmax/pmax/cons.h>
#include <pmax/dev/device.h>
#include <pmax/dev/pmreg.h>
#include <pmax/dev/fbreg.h>
/*
* These need to be mapped into user space.
*/
struct fbuaccess pmu;
struct pmax_fb pmfb;
static u_short curReg; /* copy of PCCRegs.cmdr since it's read only */
/*
* Forward references.
*/
static void pmScreenInit();
static void pmLoadCursor();
static void pmRestoreCursorColor();
static void pmCursorColor();
void pmPosCursor();
static void pmInitColorMap();
static void pmVDACInit();
static void pmLoadColorMap();
void pmKbdEvent(), pmMouseEvent(), pmMouseButtons();
extern void dcPutc();
extern void (*dcDivertXInput)();
extern void (*dcMouseEvent)();
extern void (*dcMouseButtons)();
extern int pmax_boardtype;
extern u_short defCursor[32];
extern struct consdev cn_tab;
int pmprobe();
struct driver pmdriver = {
"pm", pmprobe, 0, 0,
};
/*
* Test to see if device is present.
* Return true if found and initialized ok.
*/
/*ARGSUSED*/
pmprobe(cp)
register struct pmax_ctlr *cp;
{
register struct pmax_fb *fp = &pmfb;
if (pmax_boardtype != DS_PMAX)
return (0);
if (!fp->initialized && !pminit())
return (0);
if (fp->isMono)
printf("pm0 (monochrome display)\n");
else
printf("pm0 (color display)\n");
return (1);
}
/*ARGSUSED*/
pmopen(dev, flag)
dev_t dev;
int flag;
{
register struct pmax_fb *fp = &pmfb;
int s;
if (!fp->initialized)
return (ENXIO);
if (fp->GraphicsOpen)
return (EBUSY);
fp->GraphicsOpen = 1;
if (!fp->isMono)
pmInitColorMap();
/*
* 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);
s = spltty();
dcDivertXInput = pmKbdEvent;
dcMouseEvent = pmMouseEvent;
dcMouseButtons = pmMouseButtons;
splx(s);
return (0);
}
/*ARGSUSED*/
pmclose(dev, flag)
dev_t dev;
int flag;
{
register struct pmax_fb *fp = &pmfb;
int s;
if (!fp->GraphicsOpen)
return (EBADF);
fp->GraphicsOpen = 0;
if (!fp->isMono)
pmInitColorMap();
s = spltty();
dcDivertXInput = (void (*)())0;
dcMouseEvent = (void (*)())0;
dcMouseButtons = (void (*)())0;
splx(s);
pmScreenInit();
bzero((caddr_t)fp->fr_addr,
(fp->isMono ? 1024 / 8 : 1024) * 864);
pmPosCursor(fp->col * 8, fp->row * 15);
return (0);
}
/*ARGSUSED*/
pmioctl(dev, cmd, data, flag, p)
dev_t dev;
caddr_t data;
struct proc *p;
{
register PCCRegs *pcc = (PCCRegs *)MACH_PHYS_TO_UNCACHED(KN01_SYS_PCC);
register struct pmax_fb *fp = &pmfb;
int s;
switch (cmd) {
case QIOCGINFO:
return (fbmmap(fp, dev, data, p));
case QIOCPMSTATE:
/*
* Set mouse state.
*/
fp->fbu->scrInfo.mouse = *(pmCursor *)data;
pmPosCursor(fp->fbu->scrInfo.mouse.x, fp->fbu->scrInfo.mouse.y);
break;
case QIOCINIT:
/*
* Initialize the screen.
*/
pmScreenInit();
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:
pmLoadCursor((unsigned short *)data);
break;
case QIOWCURSORCOLOR:
pmCursorColor((unsigned int *)data);
break;
case QIOSETCMAP:
pmLoadColorMap((ColorMap *)data);
break;
case QIOKERNLOOP:
s = spltty();
dcDivertXInput = pmKbdEvent;
dcMouseEvent = pmMouseEvent;
dcMouseButtons = pmMouseButtons;
splx(s);
break;
case QIOKERNUNLOOP:
s = spltty();
dcDivertXInput = (void (*)())0;
dcMouseEvent = (void (*)())0;
dcMouseButtons = (void (*)())0;
splx(s);
break;
case QIOVIDEOON:
if (!fp->isMono)
pmRestoreCursorColor();
curReg |= PCC_ENPA;
curReg &= ~PCC_FOPB;
pcc->cmdr = curReg;
break;
case QIOVIDEOOFF:
if (!fp->isMono)
pmVDACInit();
curReg |= PCC_FOPB;
curReg &= ~PCC_ENPA;
pcc->cmdr = curReg;
break;
default:
printf("pm0: Unknown ioctl command %x\n", cmd);
return (EINVAL);
}
return (0);
}
/*
* Return the physical page number that corresponds to byte offset 'off'.
*/
/*ARGSUSED*/
pmmap(dev, off, prot)
dev_t dev;
{
int len;
len = pmax_round_page(((vm_offset_t)&pmu & PGOFSET) + sizeof(pmu));
if (off < len)
return pmax_btop(MACH_CACHED_TO_PHYS(&pmu) + off);
off -= len;
if (off >= pmfb.fr_size)
return (-1);
return pmax_btop(MACH_UNCACHED_TO_PHYS(pmfb.fr_addr) + off);
}
pmselect(dev, flag, p)
dev_t dev;
int flag;
struct proc *p;
{
struct pmax_fb *fp = &pmfb;
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 bg_RGB[3]; /* background color for the cursor */
static u_char fg_RGB[3]; /* foreground color for the cursor */
/*
* Test to see if device is present.
* Return true if found and initialized ok.
*/
pminit()
{
register PCCRegs *pcc = (PCCRegs *)MACH_PHYS_TO_UNCACHED(KN01_SYS_PCC);
register struct pmax_fb *fp = &pmfb;
fp->isMono = *(volatile u_short *)MACH_PHYS_TO_UNCACHED(KN01_SYS_CSR) &
KN01_CSR_MONO;
fp->fr_addr = (char *)MACH_PHYS_TO_UNCACHED(KN01_PHYS_FBUF_START);
fp->fr_size = fp->isMono ? 0x40000 : 0x100000;
/*
* 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(&pmu));
fp->posCursor = pmPosCursor;
fp->KBDPutc = dcPutc;
fp->kbddev = makedev(DCDEV, DCKBD_PORT);
if (fp->isMono) {
/* check for no frame buffer */
if (badaddr((char *)fp->fr_addr, 4))
return (0);
}
/*
* Initialize the screen.
*/
pcc->cmdr = PCC_FOPB | PCC_VBHI;
/*
* Initialize the cursor register.
*/
pcc->cmdr = curReg = PCC_ENPA | PCC_ENPB;
/*
* Initialize screen info.
*/
fp->fbu->scrInfo.max_row = 56;
fp->fbu->scrInfo.max_col = 80;
fp->fbu->scrInfo.max_x = 1024;
fp->fbu->scrInfo.max_y = 864;
fp->fbu->scrInfo.max_cur_x = 1023;
fp->fbu->scrInfo.max_cur_y = 863;
fp->fbu->scrInfo.version = 11;
fp->fbu->scrInfo.mthreshold = 4;
fp->fbu->scrInfo.mscale = 2;
fp->fbu->scrInfo.min_cur_x = -15;
fp->fbu->scrInfo.min_cur_y = -15;
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.
*/
pmInitColorMap();
pmScreenInit();
fbScroll(fp);
fp->initialized = 1;
if (cn_tab.cn_fb == (struct pmax_fb *)0)
cn_tab.cn_fb = fp;
return (1);
}
/*
* ----------------------------------------------------------------------------
*
* pmScreenInit --
*
* Initialize the screen.
*
* Results:
* None.
*
* Side effects:
* The screen is initialized.
*
* ----------------------------------------------------------------------------
*/
static void
pmScreenInit()
{
register struct pmax_fb *fp = &pmfb;
/*
* 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 = 55;
fp->col = 0;
/*
* Load the cursor with the default values
*
*/
pmLoadCursor(defCursor);
}
/*
* ----------------------------------------------------------------------------
*
* pmLoadCursor --
*
* Routine to load the cursor Sprite pattern.
*
* Results:
* None.
*
* Side effects:
* The cursor is loaded into the hardware cursor.
*
* ----------------------------------------------------------------------------
*/
static void
pmLoadCursor(cur)
unsigned short *cur;
{
register PCCRegs *pcc = (PCCRegs *)MACH_PHYS_TO_UNCACHED(KN01_SYS_PCC);
register int i;
curReg |= PCC_LODSA;
pcc->cmdr = curReg;
for (i = 0; i < 32; i++) {
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
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 */