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NetBSD/sys/arch/amiga/dev/grf_cl.c

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/* $NetBSD: grf_cl.c,v 1.21 1998/01/12 10:39:31 thorpej Exp $ */
/*
* Copyright (c) 1997 Klaus Burkert
* Copyright (c) 1995 Ezra Story
* Copyright (c) 1995 Kari Mettinen
* Copyright (c) 1994 Markus Wild
* Copyright (c) 1994 Lutz Vieweg
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Lutz Vieweg.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "grfcl.h"
#if NGRFCL > 0
/*
* Graphics routines for Cirrus CL GD 5426 boards,
*
* This code offers low-level routines to access Cirrus Cl GD 5426
* graphics-boards from within NetBSD for the Amiga.
* No warranties for any kind of function at all - this
* code may crash your hardware and scratch your harddisk. Use at your
* own risk. Freely distributable.
*
* Modified for Cirrus CL GD 5426 from
* Lutz Vieweg's retina driver by Kari Mettinen 08/94
* Contributions by Ill, ScottE, MiL
* Extensively hacked and rewritten by Ezra Story (Ezy) 01/95
* Picasso/040 patches (wee!) by crest 01/96
*
* PicassoIV support bz Klaus "crest" Burkert.
* Fixed interlace and doublescan, added clockdoubling and
* HiColor&TrueColor suuport by crest 01/97
*
* Thanks to Village Tronic Marketing Gmbh for providing me with
* a Picasso-II board.
* Thanks for Integrated Electronics Oy Ab for providing me with
* Cirrus CL GD 542x family documentation.
*
* TODO:
* Mouse support (almost there! :-))
* Blitter support
*
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/errno.h>
#include <sys/ioctl.h>
#include <sys/device.h>
#include <sys/malloc.h>
#include <machine/cpu.h>
#include <dev/cons.h>
#include <amiga/dev/itevar.h>
#include <amiga/amiga/device.h>
#include <amiga/dev/grfioctl.h>
#include <amiga/dev/grfvar.h>
#include <amiga/dev/grf_clreg.h>
#include <amiga/dev/zbusvar.h>
int cl_mondefok __P((struct grfvideo_mode *));
void cl_boardinit __P((struct grf_softc *));
static void cl_CompFQ __P((u_int, u_char *, u_char *, u_char *));
int cl_getvmode __P((struct grf_softc *, struct grfvideo_mode *));
int cl_setvmode __P((struct grf_softc *, unsigned int));
int cl_toggle __P((struct grf_softc *, unsigned short));
int cl_getcmap __P((struct grf_softc *, struct grf_colormap *));
int cl_putcmap __P((struct grf_softc *, struct grf_colormap *));
#ifndef CL5426CONSOLE
void cl_off __P((struct grf_softc *));
#endif
void cl_inittextmode __P((struct grf_softc *));
int cl_ioctl __P((register struct grf_softc *, u_long, void *));
int cl_getmousepos __P((struct grf_softc *, struct grf_position *));
int cl_setmousepos __P((struct grf_softc *, struct grf_position *));
static int cl_setspriteinfo __P((struct grf_softc *, struct grf_spriteinfo *));
int cl_getspriteinfo __P((struct grf_softc *, struct grf_spriteinfo *));
static int cl_getspritemax __P((struct grf_softc *, struct grf_position *));
int cl_blank __P((struct grf_softc *, int *));
int cl_setmonitor __P((struct grf_softc *, struct grfvideo_mode *));
void cl_writesprpos __P((volatile char *, short, short));
void writeshifted __P((volatile char *, char, char));
static void RegWakeup __P((volatile caddr_t));
static void RegOnpass __P((volatile caddr_t));
static void RegOffpass __P((volatile caddr_t));
void grfclattach __P((struct device *, struct device *, void *));
int grfclprint __P((void *, const char *));
int grfclmatch __P((struct device *, struct cfdata *, void *));
void cl_memset __P((unsigned char *, unsigned char, int));
/* Graphics display definitions.
* These are filled by 'grfconfig' using GRFIOCSETMON.
*/
#define monitor_def_max 24
static struct grfvideo_mode monitor_def[24] = {
{0}, {0}, {0}, {0}, {0}, {0}, {0}, {0},
{0}, {0}, {0}, {0}, {0}, {0}, {0}, {0},
{0}, {0}, {0}, {0}, {0}, {0}, {0}, {0}
};
static struct grfvideo_mode *monitor_current = &monitor_def[0];
/* Patchable maximum pixel clock */
unsigned long cl_maxpixelclock = 86000000;
/* Console display definition.
* Default hardcoded text mode. This grf_cl is set up to
* use one text mode only, and this is it. You may use
* grfconfig to change the mode after boot.
*/
/* Console font */
#ifdef KFONT_8X11
#define CIRRUSFONT kernel_font_8x11
#define CIRRUSFONTY 11
#else
#define CIRRUSFONT kernel_font_8x8
#define CIRRUSFONTY 8
#endif
extern unsigned char CIRRUSFONT[];
struct grfcltext_mode clconsole_mode = {
{255, "", 25200000, 640, 480, 4, 640/8, 752/8, 792/8, 800/8,
481, 490, 498, 522, 0},
8, CIRRUSFONTY, 80, 480 / CIRRUSFONTY, CIRRUSFONT, 32, 255
};
/* Console colors */
unsigned char clconscolors[3][3] = { /* background, foreground, hilite */
{0, 0x40, 0x50}, {152, 152, 152}, {255, 255, 255}
};
int cltype = 0; /* Picasso, Spectrum or Piccolo */
int cl_64bit = 0; /* PiccoloSD64 or PicassoIV */
unsigned char pass_toggle; /* passthru status tracker */
/*
* because all 542x-boards have 2 configdev entries, one for
* framebuffer mem and the other for regs, we have to hold onto
* the pointers globally until we match on both. This and 'cltype'
* are the primary obsticles to multiple board support, but if you
* have multiple boards you have bigger problems than grf_cl.
*/
static void *cl_fbaddr = 0; /* framebuffer */
static void *cl_regaddr = 0; /* registers */
static int cl_fbsize; /* framebuffer size */
static int cl_fbautosize; /* framebuffer autoconfig size */
/*
* current sprite info, if you add support for multiple boards
* make this an array or something
*/
struct grf_spriteinfo cl_cursprite;
/* sprite bitmaps in kernel stack, you'll need to arrayize these too if
* you add multiple board support
*/
static unsigned char cl_imageptr[8 * 64], cl_maskptr[8 * 64];
static unsigned char cl_sprred[2], cl_sprgreen[2], cl_sprblue[2];
/* standard driver stuff */
struct cfattach grfcl_ca = {
sizeof(struct grf_softc), grfclmatch, grfclattach
};
static struct cfdata *cfdata;
int
grfclmatch(pdp, cfp, auxp)
struct device *pdp;
struct cfdata *cfp;
void *auxp;
{
struct zbus_args *zap;
static int regprod, fbprod, fbprod2;
int error;
fbprod2 = 0;
zap = auxp;
#ifndef CL5426CONSOLE
if (amiga_realconfig == 0)
return (0);
#endif
/* Grab the first board we encounter as the preferred one. This will
* allow one board to work in a multiple 5426 board system, but not
* multiple boards at the same time. */
if (cltype == 0) {
switch (zap->manid) {
case PICASSO:
switch (zap->prodid) {
case 11:
case 12:
regprod = 12;
fbprod = 11;
error = 0;
break;
case 22:
fbprod2 = 22;
error = 0;
break;
case 21:
case 23:
regprod = 23;
fbprod = 21;
cl_64bit = 1;
error = 0;
break;
case 24:
regprod = 24;
fbprod = 24;
cl_64bit = 1;
error = 0;
break;
default:
error = 1;
break;
}
if (error == 1)
return (0);
else
break;
case SPECTRUM:
if (zap->prodid != 2 && zap->prodid != 1)
return (0);
regprod = 2;
fbprod = 1;
break;
case PICCOLO:
switch (zap->prodid) {
case 5:
case 6:
regprod = 6;
fbprod = 5;
error = 0;
break;
case 10:
case 11:
regprod = 11;
fbprod = 10;
cl_64bit = 1;
error = 0;
break;
default:
error = 1;
break;
}
if (error == 1)
return (0);
else
break;
default:
return (0);
}
cltype = zap->manid;
} else {
if (cltype != zap->manid) {
return (0);
}
}
/* Configure either registers or framebuffer in any order */
if ((cltype == PICASSO) && (cl_64bit == 1)) {
switch (zap->prodid) {
case 21:
cl_fbaddr = zap->va;
cl_fbautosize = zap->size;
break;
case 22:
cl_fbautosize += zap->size;
break;
case 23:
cl_regaddr = (void *)((unsigned long)(zap->va) + 0x10000);
break;
case 24:
cl_regaddr = (void *)((unsigned long)(zap->va) + 0x600000);
cl_fbaddr = (void *)((unsigned long)(zap->va) + 0x01000000);
cl_fbautosize = 0x400000;
break;
default:
return (0);
}
}
else {
if (zap->prodid == regprod)
cl_regaddr = zap->va;
else
if (zap->prodid == fbprod) {
cl_fbaddr = zap->va;
cl_fbautosize = zap->size;
} else
return (0);
}
#ifdef CL5426CONSOLE
if (amiga_realconfig == 0) {
cfdata = cfp;
}
#endif
return (1);
}
void
grfclattach(pdp, dp, auxp)
struct device *pdp, *dp;
void *auxp;
{
static struct grf_softc congrf;
struct zbus_args *zap;
struct grf_softc *gp;
static char attachflag = 0;
zap = auxp;
printf("\n");
/* make sure both halves have matched */
if (!cl_regaddr || !cl_fbaddr)
return;
/* do all that messy console/grf stuff */
if (dp == NULL)
gp = &congrf;
else
gp = (struct grf_softc *) dp;
if (dp != NULL && congrf.g_regkva != 0) {
/*
* inited earlier, just copy (not device struct)
*/
bcopy(&congrf.g_display, &gp->g_display,
(char *) &gp[1] - (char *) &gp->g_display);
} else {
gp->g_regkva = (volatile caddr_t) cl_regaddr;
gp->g_fbkva = (volatile caddr_t) cl_fbaddr;
gp->g_unit = GRF_CL5426_UNIT;
gp->g_mode = cl_mode;
gp->g_conpri = grfcl_cnprobe();
gp->g_flags = GF_ALIVE;
/* wakeup the board */
cl_boardinit(gp);
#ifdef CL5426CONSOLE
grfcl_iteinit(gp);
(void) cl_load_mon(gp, &clconsole_mode);
#endif
}
/*
* attach grf (once)
*/
if (amiga_config_found(cfdata, &gp->g_device, gp, grfclprint)) {
attachflag = 1;
printf("grfcl: %dMB ", cl_fbsize / 0x100000);
switch (cltype) {
case PICASSO:
if (cl_64bit == 1) {
printf("Picasso IV");
/* 135MHz will be supported if we
* have a palette doubling mode.
*/
cl_maxpixelclock = 86000000;
}
else {
printf("Picasso II");
/* check for PicassoII+ (crest) */
if(zap->serno == 0x00100000)
printf("+");
/* determine used Gfx/chipset (crest) */
vgaw(gp->g_regkva, CRT_ADDRESS, 0x27); /* Chip ID */
switch(vgar(gp->g_regkva, CRT_ADDRESS_R)>>2) {
case 0x24:
printf(" (with CL-GD5426)");
break;
case 0x26:
printf(" (with CL-GD5428)");
break;
case 0x27:
printf(" (with CL-GD5429)");
break;
}
cl_maxpixelclock = 86000000;
}
break;
case SPECTRUM:
printf("Spectrum");
cl_maxpixelclock = 90000000;
break;
case PICCOLO:
if (cl_64bit == 1) {
printf("Piccolo SD64");
/* 110MHz will be supported if we
* have a palette doubling mode.
*/
cl_maxpixelclock = 90000000;
} else {
printf("Piccolo");
cl_maxpixelclock = 90000000;
}
break;
}
printf(" being used\n");
#ifdef CL_OVERCLOCK
cl_maxpixelclock = 115000000;
#endif
} else {
if (!attachflag)
printf("grfcl unattached!!\n");
}
}
int
grfclprint(auxp, pnp)
void *auxp;
const char *pnp;
{
if (pnp)
printf("ite at %s: ", pnp);
return (UNCONF);
}
void
cl_boardinit(gp)
struct grf_softc *gp;
{
unsigned char *ba = gp->g_regkva;
int x;
if ((cltype == PICASSO) && (cl_64bit == 1)) { /* PicassoIV */
WCrt(ba, 0x51, 0x00); /* disable capture (FlickerFixer) */
delay(200000); /* wait some time (two frames as of now) */
WGfx(ba, 0x2f, 0x00); /* get Blitter into 542x */
WGfx(ba, GCT_ID_RESERVED, 0x00); /* compatibility mode */
WGfx(ba, GCT_ID_BLT_STAT_START, 0x00); /* or at least, try so... */
cl_fbsize = cl_fbautosize;
} else {
/* wakeup board and flip passthru OFF */
RegWakeup(ba);
RegOnpass(ba);
vgaw(ba, 0x46e8, 0x16);
vgaw(ba, 0x102, 1);
vgaw(ba, 0x46e8, 0x0e);
if (cl_64bit != 1)
vgaw(ba, 0x3c3, 1);
cl_fbsize = cl_fbautosize;
/* setup initial unchanging parameters */
WSeq(ba, SEQ_ID_CLOCKING_MODE, 0x21); /* 8 dot - display off */
vgaw(ba, GREG_MISC_OUTPUT_W, 0xed); /* mem disable */
WGfx(ba, GCT_ID_OFFSET_1, 0xec); /* magic cookie */
WSeq(ba, SEQ_ID_UNLOCK_EXT, 0x12); /* yum! cookies! */
if (cl_64bit == 1) {
WSeq(ba, SEQ_ID_CONF_RBACK, 0x00);
WSeq(ba, SEQ_ID_DRAM_CNTL, (cl_fbsize / 0x100000 == 2) ? 0x38 : 0xb8);
} else {
WSeq(ba, SEQ_ID_DRAM_CNTL, 0xb0);
}
WSeq(ba, SEQ_ID_RESET, 0x03);
WSeq(ba, SEQ_ID_MAP_MASK, 0xff);
WSeq(ba, SEQ_ID_CHAR_MAP_SELECT, 0x00);
WSeq(ba, SEQ_ID_MEMORY_MODE, 0x0e); /* a or 6? */
WSeq(ba, SEQ_ID_EXT_SEQ_MODE, (cltype == PICASSO) ? 0x21 : 0x81);
WSeq(ba, SEQ_ID_EEPROM_CNTL, 0x00);
if (cl_64bit == 1)
WSeq(ba, SEQ_ID_PERF_TUNE, 0x5a);
else
WSeq(ba, SEQ_ID_PERF_TUNE, 0x0a); /* mouse 0a fa */
WSeq(ba, SEQ_ID_SIG_CNTL, 0x02);
WSeq(ba, SEQ_ID_CURSOR_ATTR, 0x04);
if (cl_64bit == 1)
WSeq(ba, SEQ_ID_MCLK_SELECT, 0x1c);
else
WSeq(ba, SEQ_ID_MCLK_SELECT, 0x22);
WCrt(ba, CRT_ID_PRESET_ROW_SCAN, 0x00);
WCrt(ba, CRT_ID_CURSOR_START, 0x00);
WCrt(ba, CRT_ID_CURSOR_END, 0x08);
WCrt(ba, CRT_ID_START_ADDR_HIGH, 0x00);
WCrt(ba, CRT_ID_START_ADDR_LOW, 0x00);
WCrt(ba, CRT_ID_CURSOR_LOC_HIGH, 0x00);
WCrt(ba, CRT_ID_CURSOR_LOC_LOW, 0x00);
WCrt(ba, CRT_ID_UNDERLINE_LOC, 0x07);
WCrt(ba, CRT_ID_MODE_CONTROL, 0xe3);
WCrt(ba, CRT_ID_LINE_COMPARE, 0xff); /* ff */
WCrt(ba, CRT_ID_EXT_DISP_CNTL, 0x22);
if (cl_64bit == 1) {
WCrt(ba, CRT_ID_SYNC_ADJ_GENLOCK, 0x00);
WCrt(ba, CRT_ID_OVERLAY_EXT_CTRL_REG, 0x40);
}
WSeq(ba, SEQ_ID_CURSOR_STORE, 0x3c); /* mouse 0x00 */
WGfx(ba, GCT_ID_SET_RESET, 0x00);
WGfx(ba, GCT_ID_ENABLE_SET_RESET, 0x00);
WGfx(ba, GCT_ID_DATA_ROTATE, 0x00);
WGfx(ba, GCT_ID_READ_MAP_SELECT, 0x00);
WGfx(ba, GCT_ID_GRAPHICS_MODE, 0x00);
WGfx(ba, GCT_ID_MISC, 0x01);
WGfx(ba, GCT_ID_COLOR_XCARE, 0x0f);
WGfx(ba, GCT_ID_BITMASK, 0xff);
WGfx(ba, GCT_ID_MODE_EXT, 0x28);
for (x = 0; x < 0x10; x++)
WAttr(ba, x, x);
WAttr(ba, ACT_ID_ATTR_MODE_CNTL, 0x01);
WAttr(ba, ACT_ID_OVERSCAN_COLOR, 0x00);
WAttr(ba, ACT_ID_COLOR_PLANE_ENA, 0x0f);
WAttr(ba, ACT_ID_HOR_PEL_PANNING, 0x00);
WAttr(ba, ACT_ID_COLOR_SELECT, 0x00);
WAttr(ba, 0x34, 0x00);
vgaw(ba, VDAC_MASK, 0xff);
vgaw(ba, GREG_MISC_OUTPUT_W, 0xef);
WGfx(ba, GCT_ID_BLT_STAT_START, 0x04);
WGfx(ba, GCT_ID_BLT_STAT_START, 0x00);
}
/* colors initially set to greyscale */
vgaw(ba, VDAC_ADDRESS_W, 0);
for (x = 255; x >= 0; x--) {
vgaw(ba, VDAC_DATA, x);
vgaw(ba, VDAC_DATA, x);
vgaw(ba, VDAC_DATA, x);
}
/* set sprite bitmap pointers */
cl_cursprite.image = cl_imageptr;
cl_cursprite.mask = cl_maskptr;
cl_cursprite.cmap.red = cl_sprred;
cl_cursprite.cmap.green = cl_sprgreen;
cl_cursprite.cmap.blue = cl_sprblue;
if (cl_64bit == 0) {
/* check for 1MB or 2MB board (crest) */
volatile unsigned long *cl_fbtestaddr;
cl_fbtestaddr = (volatile unsigned long *)gp->g_fbkva;
WGfx(ba, GCT_ID_OFFSET_0, 0x40);
*cl_fbtestaddr = 0x12345678;
if (*cl_fbtestaddr != 0x12345678) {
WSeq(ba, SEQ_ID_DRAM_CNTL, 0x30);
cl_fbsize = 0x100000;
}
else
{
cl_fbsize = 0x200000;
}
}
WGfx(ba, GCT_ID_OFFSET_0, 0x00);
}
int
cl_getvmode(gp, vm)
struct grf_softc *gp;
struct grfvideo_mode *vm;
{
struct grfvideo_mode *gv;
#ifdef CL5426CONSOLE
/* Handle grabbing console mode */
if (vm->mode_num == 255) {
bcopy(&clconsole_mode, vm, sizeof(struct grfvideo_mode));
/* XXX so grfconfig can tell us the correct text dimensions. */
vm->depth = clconsole_mode.fy;
} else
#endif
{
if (vm->mode_num == 0)
vm->mode_num = (monitor_current - monitor_def) + 1;
if (vm->mode_num < 1 || vm->mode_num > monitor_def_max)
return (EINVAL);
gv = monitor_def + (vm->mode_num - 1);
if (gv->mode_num == 0)
return (EINVAL);
bcopy(gv, vm, sizeof(struct grfvideo_mode));
}
/* adjust internal values to pixel values */
vm->hblank_start *= 8;
vm->hsync_start *= 8;
vm->hsync_stop *= 8;
vm->htotal *= 8;
return (0);
}
int
cl_setvmode(gp, mode)
struct grf_softc *gp;
unsigned mode;
{
if (!mode || (mode > monitor_def_max) ||
monitor_def[mode - 1].mode_num == 0)
return (EINVAL);
monitor_current = monitor_def + (mode - 1);
return (0);
}
#ifndef CL5426CONSOLE
void
cl_off(gp)
struct grf_softc *gp;
{
char *ba = gp->g_regkva;
/*
* we'll put the pass-through on for cc ite and set Full Bandwidth bit
* on just in case it didn't work...but then it doesn't matter does
* it? =)
*/
RegOnpass(ba);
vgaw(ba, SEQ_ADDRESS, SEQ_ID_CLOCKING_MODE);
vgaw(ba, SEQ_ADDRESS_W, vgar(ba, SEQ_ADDRESS_W) | 0x20);
}
#endif
int
cl_blank(gp, on)
struct grf_softc *gp;
int *on;
{
WSeq(gp->g_regkva, SEQ_ID_CLOCKING_MODE, *on > 0 ? 0x01 : 0x21);
return(0);
}
/*
* Change the mode of the display.
* Return a UNIX error number or 0 for success.
*/
int
cl_mode(gp, cmd, arg, a2, a3)
register struct grf_softc *gp;
u_long cmd;
void *arg;
u_long a2;
int a3;
{
int error;
switch (cmd) {
case GM_GRFON:
error = cl_load_mon(gp,
(struct grfcltext_mode *) monitor_current) ? 0 : EINVAL;
return (error);
case GM_GRFOFF:
#ifndef CL5426CONSOLE
cl_off(gp);
#else
cl_load_mon(gp, &clconsole_mode);
#endif
return (0);
case GM_GRFCONFIG:
return (0);
case GM_GRFGETVMODE:
return (cl_getvmode(gp, (struct grfvideo_mode *) arg));
case GM_GRFSETVMODE:
error = cl_setvmode(gp, *(unsigned *) arg);
if (!error && (gp->g_flags & GF_GRFON))
cl_load_mon(gp,
(struct grfcltext_mode *) monitor_current);
return (error);
case GM_GRFGETNUMVM:
*(int *) arg = monitor_def_max;
return (0);
case GM_GRFIOCTL:
return (cl_ioctl(gp, a2, arg));
default:
break;
}
return (EINVAL);
}
int
cl_ioctl(gp, cmd, data)
register struct grf_softc *gp;
u_long cmd;
void *data;
{
switch (cmd) {
case GRFIOCGSPRITEPOS:
return (cl_getmousepos(gp, (struct grf_position *) data));
case GRFIOCSSPRITEPOS:
return (cl_setmousepos(gp, (struct grf_position *) data));
case GRFIOCSSPRITEINF:
return (cl_setspriteinfo(gp, (struct grf_spriteinfo *) data));
case GRFIOCGSPRITEINF:
return (cl_getspriteinfo(gp, (struct grf_spriteinfo *) data));
case GRFIOCGSPRITEMAX:
return (cl_getspritemax(gp, (struct grf_position *) data));
case GRFIOCGETCMAP:
return (cl_getcmap(gp, (struct grf_colormap *) data));
case GRFIOCPUTCMAP:
return (cl_putcmap(gp, (struct grf_colormap *) data));
case GRFIOCBITBLT:
break;
case GRFTOGGLE:
return (cl_toggle(gp, 0));
case GRFIOCSETMON:
return (cl_setmonitor(gp, (struct grfvideo_mode *) data));
case GRFIOCBLANK:
return (cl_blank(gp, (int *)data));
}
return (EINVAL);
}
int
cl_getmousepos(gp, data)
struct grf_softc *gp;
struct grf_position *data;
{
data->x = cl_cursprite.pos.x;
data->y = cl_cursprite.pos.y;
return (0);
}
void
cl_writesprpos(ba, x, y)
volatile char *ba;
short x;
short y;
{
/* we want to use a 16-bit write to 3c4 so no macros used */
volatile unsigned char *cwp;
volatile unsigned short *wp;
cwp = ba + 0x3c4;
wp = (unsigned short *)cwp;
/*
* don't ask me why, but apparently you can't do a 16-bit write with
* x-position like with y-position below (dagge)
*/
cwp[0] = 0x10 | ((x << 5) & 0xff);
cwp[1] = (x >> 3) & 0xff;
*wp = 0x1100 | ((y & 7) << 13) | ((y >> 3) & 0xff);
}
void
writeshifted(to, shiftx, shifty)
volatile char *to;
char shiftx;
char shifty;
{
register char y;
unsigned long long *tptr, *iptr, *mptr, line;
tptr = (unsigned long long *) to;
iptr = (unsigned long long *) cl_cursprite.image;
mptr = (unsigned long long *) cl_cursprite.mask;
shiftx = shiftx < 0 ? 0 : shiftx;
shifty = shifty < 0 ? 0 : shifty;
/* start reading shifty lines down, and
* shift each line in by shiftx
*/
for (y = shifty; y < 64; y++) {
/* image */
line = iptr[y];
*tptr++ = line << shiftx;
/* mask */
line = mptr[y];
*tptr++ = line << shiftx;
}
/* clear the remainder */
for (y = shifty; y > 0; y--) {
*tptr++ = 0;
*tptr++ = 0;
}
}
int
cl_setmousepos(gp, data)
struct grf_softc *gp;
struct grf_position *data;
{
volatile char *ba = gp->g_regkva;
short rx, ry, prx, pry;
#ifdef CL_SHIFTSPRITE
volatile char *fb = gp->g_fbkva;
volatile char *sprite = fb + (cl_fbsize - 1024);
#endif
/* no movement */
if (cl_cursprite.pos.x == data->x && cl_cursprite.pos.y == data->y)
return (0);
/* current and previous real coordinates */
rx = data->x - cl_cursprite.hot.x;
ry = data->y - cl_cursprite.hot.y;
prx = cl_cursprite.pos.x - cl_cursprite.hot.x;
pry = cl_cursprite.pos.y - cl_cursprite.hot.y;
/*
* if we are/were on an edge, create (un)shifted bitmap --
* ripped out optimization (not extremely worthwhile,
* and kind of buggy anyhow).
*/
#ifdef CL_SHIFTSPRITE
if (rx < 0 || ry < 0 || prx < 0 || pry < 0) {
writeshifted(sprite, rx < 0 ? -rx : 0, ry < 0 ? -ry : 0);
}
#endif
/* do movement, save position */
cl_writesprpos(ba, rx < 0 ? 0 : rx, ry < 0 ? 0 : ry);
cl_cursprite.pos.x = data->x;
cl_cursprite.pos.y = data->y;
return (0);
}
int
cl_getspriteinfo(gp, data)
struct grf_softc *gp;
struct grf_spriteinfo *data;
{
copyout(&cl_cursprite, data, sizeof(struct grf_spriteinfo));
copyout(cl_cursprite.image, data->image, 64 * 8);
copyout(cl_cursprite.mask, data->mask, 64 * 8);
return (0);
}
static int
cl_setspriteinfo(gp, data)
struct grf_softc *gp;
struct grf_spriteinfo *data;
{
volatile unsigned char *ba = gp->g_regkva, *fb = gp->g_fbkva;
volatile char *sprite = fb + (cl_fbsize - 1024);
if (data->set & GRFSPRSET_SHAPE) {
short dsx, dsy, i;
unsigned long *di, *dm, *si, *sm;
unsigned long ssi[128], ssm[128];
struct grf_position gpos;
/* check for a too large sprite (no clipping!) */
dsy = data->size.y;
dsx = data->size.x;
if (dsy > 64 || dsx > 64)
return(EINVAL);
/* prepare destination */
di = (unsigned long *)cl_cursprite.image;
dm = (unsigned long *)cl_cursprite.mask;
cl_memset((unsigned char *)di, 0, 8*64);
cl_memset((unsigned char *)dm, 0, 8*64);
/* two alternatives: 64 across, then it's
* the same format we use, just copy. Otherwise,
* copy into tmp buf and recopy skipping the
* unused 32 bits.
*/
if ((dsx - 1) / 32) {
copyin(data->image, di, 8 * dsy);
copyin(data->mask, dm, 8 * dsy);
} else {
si = ssi; sm = ssm;
copyin(data->image, si, 4 * dsy);
copyin(data->mask, sm, 4 * dsy);
for (i = 0; i < dsy; i++) {
*di = *si++;
*dm = *sm++;
di += 2;
dm += 2;
}
}
/* set size */
cl_cursprite.size.x = data->size.x;
cl_cursprite.size.y = data->size.y;
/* forcably load into board */
gpos.x = cl_cursprite.pos.x;
gpos.y = cl_cursprite.pos.y;
cl_cursprite.pos.x = -1;
cl_cursprite.pos.y = -1;
writeshifted(sprite, 0, 0);
cl_setmousepos(gp, &gpos);
}
if (data->set & GRFSPRSET_HOT) {
cl_cursprite.hot = data->hot;
}
if (data->set & GRFSPRSET_CMAP) {
u_char red[2], green[2], blue[2];
copyin(data->cmap.red, red, 2);
copyin(data->cmap.green, green, 2);
copyin(data->cmap.blue, blue, 2);
bcopy(red, cl_cursprite.cmap.red, 2);
bcopy(green, cl_cursprite.cmap.green, 2);
bcopy(blue, cl_cursprite.cmap.blue, 2);
/* enable and load colors 256 & 257 */
WSeq(ba, SEQ_ID_CURSOR_ATTR, 0x06);
/* 256 */
vgaw(ba, VDAC_ADDRESS_W, 0x00);
if (cltype == PICASSO) {
vgaw(ba, VDAC_DATA, (u_char) (red[0] >> 2));
vgaw(ba, VDAC_DATA, (u_char) (green[0] >> 2));
vgaw(ba, VDAC_DATA, (u_char) (blue[0] >> 2));
} else {
vgaw(ba, VDAC_DATA, (u_char) (blue[0] >> 2));
vgaw(ba, VDAC_DATA, (u_char) (green[0] >> 2));
vgaw(ba, VDAC_DATA, (u_char) (red[0] >> 2));
}
/* 257 */
vgaw(ba, VDAC_ADDRESS_W, 0x0f);
if (cltype == PICASSO) {
vgaw(ba, VDAC_DATA, (u_char) (red[1] >> 2));
vgaw(ba, VDAC_DATA, (u_char) (green[1] >> 2));
vgaw(ba, VDAC_DATA, (u_char) (blue[1] >> 2));
} else {
vgaw(ba, VDAC_DATA, (u_char) (blue[1] >> 2));
vgaw(ba, VDAC_DATA, (u_char) (green[1] >> 2));
vgaw(ba, VDAC_DATA, (u_char) (red[1] >> 2));
}
/* turn on/off sprite */
if (cl_cursprite.enable) {
WSeq(ba, SEQ_ID_CURSOR_ATTR, 0x05);
} else {
WSeq(ba, SEQ_ID_CURSOR_ATTR, 0x04);
}
}
if (data->set & GRFSPRSET_ENABLE) {
if (data->enable == 1) {
WSeq(ba, SEQ_ID_CURSOR_ATTR, 0x05);
cl_cursprite.enable = 1;
} else {
WSeq(ba, SEQ_ID_CURSOR_ATTR, 0x04);
cl_cursprite.enable = 0;
}
}
if (data->set & GRFSPRSET_POS) {
/* force placement */
cl_cursprite.pos.x = -1;
cl_cursprite.pos.y = -1;
/* do it */
cl_setmousepos(gp, &data->pos);
}
return (0);
}
static int
cl_getspritemax(gp, data)
struct grf_softc *gp;
struct grf_position *data;
{
if (gp->g_display.gd_planes == 24)
return (EINVAL);
data->x = 64;
data->y = 64;
return (0);
}
int
cl_setmonitor(gp, gv)
struct grf_softc *gp;
struct grfvideo_mode *gv;
{
struct grfvideo_mode *md;
if (!cl_mondefok(gv))
return(EINVAL);
#ifdef CL5426CONSOLE
/* handle interactive setting of console mode */
if (gv->mode_num == 255) {
bcopy(gv, &clconsole_mode.gv, sizeof(struct grfvideo_mode));
clconsole_mode.gv.hblank_start /= 8;
clconsole_mode.gv.hsync_start /= 8;
clconsole_mode.gv.hsync_stop /= 8;
clconsole_mode.gv.htotal /= 8;
clconsole_mode.rows = gv->disp_height / clconsole_mode.fy;
clconsole_mode.cols = gv->disp_width / clconsole_mode.fx;
if (!(gp->g_flags & GF_GRFON))
cl_load_mon(gp, &clconsole_mode);
ite_reinit(gp->g_itedev);
return (0);
}
#endif
md = monitor_def + (gv->mode_num - 1);
bcopy(gv, md, sizeof(struct grfvideo_mode));
/* adjust pixel oriented values to internal rep. */
md->hblank_start /= 8;
md->hsync_start /= 8;
md->hsync_stop /= 8;
md->htotal /= 8;
return (0);
}
int
cl_getcmap(gfp, cmap)
struct grf_softc *gfp;
struct grf_colormap *cmap;
{
volatile unsigned char *ba;
u_char red[256], green[256], blue[256], *rp, *gp, *bp;
short x;
int error;
if (cmap->count == 0 || cmap->index >= 256)
return 0;
if (cmap->index + cmap->count > 256)
cmap->count = 256 - cmap->index;
ba = gfp->g_regkva;
/* first read colors out of the chip, then copyout to userspace */
vgaw(ba, VDAC_ADDRESS_R, cmap->index);
x = cmap->count - 1;
/*
* Some sort 'o Magic. Spectrum has some changes on the board to speed
* up 15 and 16Bit modes. They can access these modes with easy-to-programm
* rgbrgbrgb instead of rrrgggbbb. Side effect: when in 8Bit mode, rgb
* is swapped to bgr. I wonder if we need to check for 8Bit though, ill
*/
/*
* The source for the above comment is somewhat unknow to me.
* The Spectrum, Piccolo and PiccoloSD64 have the analog Red and Blue
* lines swapped. In 24BPP this provides RGB instead of BGR as it would
* be native to the chipset. This requires special programming for the
* CLUT in 8BPP to compensate and avoid false colors.
* I didn't find any special stuff for 15 and 16BPP though, crest.
*/
switch (cltype) {
case SPECTRUM:
case PICCOLO:
rp = blue + cmap->index;
gp = green + cmap->index;
bp = red + cmap->index;
break;
case PICASSO:
rp = red + cmap->index;
gp = green + cmap->index;
bp = blue + cmap->index;
break;
default:
rp = gp = bp = 0;
break;
}
do {
*rp++ = vgar(ba, VDAC_DATA) << 2;
*gp++ = vgar(ba, VDAC_DATA) << 2;
*bp++ = vgar(ba, VDAC_DATA) << 2;
} while (x-- > 0);
if (!(error = copyout(red + cmap->index, cmap->red, cmap->count))
&& !(error = copyout(green + cmap->index, cmap->green, cmap->count))
&& !(error = copyout(blue + cmap->index, cmap->blue, cmap->count)))
return (0);
return (error);
}
int
cl_putcmap(gfp, cmap)
struct grf_softc *gfp;
struct grf_colormap *cmap;
{
volatile unsigned char *ba;
u_char red[256], green[256], blue[256], *rp, *gp, *bp;
short x;
int error;
if (cmap->count == 0 || cmap->index >= 256)
return (0);
if (cmap->index + cmap->count > 256)
cmap->count = 256 - cmap->index;
/* first copy the colors into kernelspace */
if (!(error = copyin(cmap->red, red + cmap->index, cmap->count))
&& !(error = copyin(cmap->green, green + cmap->index, cmap->count))
&& !(error = copyin(cmap->blue, blue + cmap->index, cmap->count))) {
ba = gfp->g_regkva;
vgaw(ba, VDAC_ADDRESS_W, cmap->index);
x = cmap->count - 1;
switch (cltype) {
case SPECTRUM:
case PICCOLO:
rp = blue + cmap->index;
gp = green + cmap->index;
bp = red + cmap->index;
break;
case PICASSO:
rp = red + cmap->index;
gp = green + cmap->index;
bp = blue + cmap->index;
break;
default:
rp = gp = bp = 0;
break;
}
do {
vgaw(ba, VDAC_DATA, *rp++ >> 2);
vgaw(ba, VDAC_DATA, *gp++ >> 2);
vgaw(ba, VDAC_DATA, *bp++ >> 2);
} while (x-- > 0);
return (0);
} else
return (error);
}
int
cl_toggle(gp, wopp)
struct grf_softc *gp;
unsigned short wopp; /* don't need that one yet, ill */
{
volatile caddr_t ba;
ba = gp->g_regkva;
if (pass_toggle) {
RegOffpass(ba);
} else {
RegOnpass(ba);
}
return (0);
}
static void
cl_CompFQ(fq, num, denom, clkdoub)
u_int fq;
u_char *num;
u_char *denom;
u_char *clkdoub;
{
#define OSC 14318180
/* OK, here's what we're doing here:
*
* OSC * NUMERATOR
* VCLK = ------------------- Hz
* DENOMINATOR * (1+P)
*
* so we're given VCLK and we should give out some useful
* values....
*
* NUMERATOR is 7 bits wide
* DENOMINATOR is 5 bits wide with bit P in the same char as bit 0.
*
* We run through all the possible combinations and
* return the values which deviate the least from the chosen frequency.
*
*/
#define OSC 14318180
#define count(n,d,p) ((OSC * n)/(d * (1+p)))
unsigned char n, d, p, minn, mind, minp = 0;
unsigned long err, minerr;
/*
numer = 0x00 - 0x7f
denom = 0x00 - 0x1f (1) 0x20 - 0x3e (even)
*/
/* find lowest error in 6144 iterations. */
minerr = fq;
minn = 0;
mind = 0;
p = 0;
if ((cl_64bit == 1) && (fq >= 86000000))
{
for (d = 1; d < 0x20; d++) {
for (n = 1; n < 0x80; n++) {
err = abs(count(n, d, 0) - fq);
if (err < minerr) {
minerr = err;
minn = n;
mind = d;
minp = 1;
}
}
}
*clkdoub = 1;
}
else {
for (d = 1; d < 0x20; d++) {
for (n = 1; n < 0x80; n++) {
err = abs(count(n, d, p) - fq);
if (err < minerr) {
minerr = err;
minn = n;
mind = d;
minp = p;
}
}
if (d == 0x1f && p == 0) {
p = 1;
d = 0x0f;
}
}
*clkdoub = 0;
}
*num = minn;
*denom = (mind << 1) | minp;
if (minerr > 500000)
printf("Warning: CompFQ minimum error = %ld\n", minerr);
return;
}
int
cl_mondefok(gv)
struct grfvideo_mode *gv;
{
unsigned long maxpix;
if (gv->mode_num < 1 || gv->mode_num > monitor_def_max)
if (gv->mode_num != 255 || gv->depth != 4)
return(0);
switch (gv->depth) {
case 4:
if (gv->mode_num != 255)
return(0);
case 1:
case 8:
maxpix = cl_maxpixelclock;
if (cl_64bit == 1)
{
if (cltype == PICASSO) /* Picasso IV */
maxpix = 135000000;
else /* Piccolo SD64 */
maxpix = 110000000;
}
break;
case 15:
case 16:
if (cl_64bit == 1)
maxpix = 85000000;
else
maxpix = cl_maxpixelclock - (cl_maxpixelclock / 3);
break;
case 24:
if ((cltype == PICASSO) && (cl_64bit == 1))
maxpix = 85000000;
else
maxpix = cl_maxpixelclock / 3;
break;
case 32:
if ((cltype == PICCOLO) && (cl_64bit == 1))
maxpix = 50000000;
else
maxpix = 0;
break;
default:
printf("grfcl: Illegal depth in mode %d\n",
(int) gv->mode_num);
return (0);
}
if (gv->pixel_clock > maxpix) {
printf("grfcl: Pixelclock too high in mode %d\n",
(int) gv->mode_num);
return (0);
}
if (gv->disp_flags & GRF_FLAGS_SYNC_ON_GREEN) {
printf("grfcl: sync-on-green is not supported\n");
return (0);
}
return (1);
}
int
cl_load_mon(gp, md)
struct grf_softc *gp;
struct grfcltext_mode *md;
{
struct grfvideo_mode *gv;
struct grfinfo *gi;
volatile caddr_t ba, fb;
unsigned char num0, denom0, clkdoub;
unsigned short HT, HDE, HBS, HBE, HSS, HSE, VDE, VBS, VBE, VSS,
VSE, VT;
int clkmul, offsmul, clkmode;
int vmul;
int sr15;
unsigned char hvsync_pulse;
char TEXT;
/* identity */
gv = &md->gv;
TEXT = (gv->depth == 4);
if (!cl_mondefok(gv)) {
printf("grfcl: Monitor definition not ok\n");
return (0);
}
ba = gp->g_regkva;
fb = gp->g_fbkva;
/* provide all needed information in grf device-independant locations */
gp->g_data = (caddr_t) gv;
gi = &gp->g_display;
gi->gd_regaddr = (caddr_t) kvtop(ba);
gi->gd_regsize = 64 * 1024;
gi->gd_fbaddr = (caddr_t) kvtop(fb);
gi->gd_fbsize = cl_fbsize;
gi->gd_colors = 1 << gv->depth;
gi->gd_planes = gv->depth;
gi->gd_fbwidth = gv->disp_width;
gi->gd_fbheight = gv->disp_height;
gi->gd_fbx = 0;
gi->gd_fby = 0;
if (TEXT) {
gi->gd_dwidth = md->fx * md->cols;
gi->gd_dheight = md->fy * md->rows;
} else {
gi->gd_dwidth = gv->disp_width;
gi->gd_dheight = gv->disp_height;
}
gi->gd_dx = 0;
gi->gd_dy = 0;
/* get display mode parameters */
HBS = gv->hblank_start;
HSS = gv->hsync_start;
HSE = gv->hsync_stop;
HBE = gv->htotal - 1;
HT = gv->htotal;
VBS = gv->vblank_start;
VSS = gv->vsync_start;
VSE = gv->vsync_stop;
VBE = gv->vtotal - 1;
VT = gv->vtotal;
if (TEXT)
HDE = ((gv->disp_width + md->fx - 1) / md->fx) - 1;
else
HDE = (gv->disp_width + 3) / 8 - 1; /* HBS; */
VDE = gv->disp_height - 1;
/* adjustments */
switch (gv->depth) {
case 8:
clkmul = 1;
offsmul = 1;
clkmode = 0x0;
break;
case 15:
case 16:
clkmul = 1;
offsmul = 2;
clkmode = 0x6;
break;
case 24:
if ((cltype == PICASSO) && (cl_64bit == 1)) /* Picasso IV */
clkmul = 1;
else
clkmul = 3;
offsmul = 3;
clkmode = 0x4;
break;
case 32:
clkmul = 1;
offsmul = 2;
clkmode = 0x8;
break;
default:
clkmul = 1;
offsmul = 1;
clkmode = 0x0;
break;
}
if ((VT > 1023) && (!(gv->disp_flags & GRF_FLAGS_LACE))) {
WCrt(ba, CRT_ID_MODE_CONTROL, 0xe7);
} else
WCrt(ba, CRT_ID_MODE_CONTROL, 0xe3);
vmul = 2;
if ((VT > 1023) || (gv->disp_flags & GRF_FLAGS_LACE))
vmul = 1;
if (gv->disp_flags & GRF_FLAGS_DBLSCAN)
vmul = 4;
VDE = VDE * vmul / 2;
VBS = VBS * vmul / 2;
VSS = VSS * vmul / 2;
VSE = VSE * vmul / 2;
VBE = VBE * vmul / 2;
VT = VT * vmul / 2;
WSeq(ba, SEQ_ID_MEMORY_MODE, (TEXT || (gv->depth == 1)) ? 0x06 : 0x0e);
if (cl_64bit == 1) {
if (TEXT || (gv->depth == 1))
sr15 = 0xd0;
else
sr15 = ((cl_fbsize / 0x100000 == 2) ? 0x38 : 0xb8);
WSeq(ba, SEQ_ID_CONF_RBACK, 0x00);
} else {
sr15 = (TEXT || (gv->depth == 1)) ? 0xd0 : 0xb0;
sr15 &= ((cl_fbsize / 0x100000) == 2) ? 0xff : 0x7f;
}
WSeq(ba, SEQ_ID_DRAM_CNTL, sr15);
WGfx(ba, GCT_ID_READ_MAP_SELECT, 0x00);
WSeq(ba, SEQ_ID_MAP_MASK, (gv->depth == 1) ? 0x01 : 0xff);
WSeq(ba, SEQ_ID_CHAR_MAP_SELECT, 0x00);
/* Set clock */
cl_CompFQ(gv->pixel_clock * clkmul, &num0, &denom0, &clkdoub);
/* Horizontal/Vertical Sync Pulse */
hvsync_pulse = vgar(ba, GREG_MISC_OUTPUT_R);
if (gv->disp_flags & GRF_FLAGS_PHSYNC)
hvsync_pulse &= ~0x40;
else
hvsync_pulse |= 0x40;
if (gv->disp_flags & GRF_FLAGS_PVSYNC)
hvsync_pulse &= ~0x80;
else
hvsync_pulse |= 0x80;
vgaw(ba, GREG_MISC_OUTPUT_W, hvsync_pulse);
if (clkdoub) {
HDE /= 2;
HBS /= 2;
HSS /= 2;
HSE /= 2;
HBE /= 2;
HT /= 2;
clkmode = 0x6;
}
WSeq(ba, SEQ_ID_VCLK_3_NUM, num0);
WSeq(ba, SEQ_ID_VCLK_3_DENOM, denom0);
/* load display parameters into board */
WCrt(ba, CRT_ID_HOR_TOTAL, HT);
WCrt(ba, CRT_ID_HOR_DISP_ENA_END, ((HDE >= HBS) ? HBS - 1 : HDE));
WCrt(ba, CRT_ID_START_HOR_BLANK, HBS);
WCrt(ba, CRT_ID_END_HOR_BLANK, (HBE & 0x1f) | 0x80); /* | 0x80? */
WCrt(ba, CRT_ID_START_HOR_RETR, HSS);
WCrt(ba, CRT_ID_END_HOR_RETR,
(HSE & 0x1f) |
((HBE & 0x20) ? 0x80 : 0x00));
WCrt(ba, CRT_ID_VER_TOTAL, VT);
WCrt(ba, CRT_ID_OVERFLOW,
0x10 |
((VT & 0x100) ? 0x01 : 0x00) |
((VDE & 0x100) ? 0x02 : 0x00) |
((VSS & 0x100) ? 0x04 : 0x00) |
((VBS & 0x100) ? 0x08 : 0x00) |
((VT & 0x200) ? 0x20 : 0x00) |
((VDE & 0x200) ? 0x40 : 0x00) |
((VSS & 0x200) ? 0x80 : 0x00));
WCrt(ba, CRT_ID_CHAR_HEIGHT,
0x40 | /* TEXT ? 0x00 ??? */
((gv->disp_flags & GRF_FLAGS_DBLSCAN) ? 0x80 : 0x00) |
((VBS & 0x200) ? 0x20 : 0x00) |
(TEXT ? ((md->fy - 1) & 0x1f) : 0x00));
/* text cursor */
if (TEXT) {
#if CL_ULCURSOR
WCrt(ba, CRT_ID_CURSOR_START, (md->fy & 0x1f) - 2);
WCrt(ba, CRT_ID_CURSOR_END, (md->fy & 0x1f) - 1);
#else
WCrt(ba, CRT_ID_CURSOR_START, 0x00);
WCrt(ba, CRT_ID_CURSOR_END, md->fy & 0x1f);
#endif
WCrt(ba, CRT_ID_UNDERLINE_LOC, (md->fy - 1) & 0x1f);
WCrt(ba, CRT_ID_CURSOR_LOC_HIGH, 0x00);
WCrt(ba, CRT_ID_CURSOR_LOC_LOW, 0x00);
}
WCrt(ba, CRT_ID_START_ADDR_HIGH, 0x00);
WCrt(ba, CRT_ID_START_ADDR_LOW, 0x00);
WCrt(ba, CRT_ID_START_VER_RETR, VSS);
WCrt(ba, CRT_ID_END_VER_RETR, (VSE & 0x0f) | 0x20);
WCrt(ba, CRT_ID_VER_DISP_ENA_END, VDE);
WCrt(ba, CRT_ID_START_VER_BLANK, VBS);
WCrt(ba, CRT_ID_END_VER_BLANK, VBE);
WCrt(ba, CRT_ID_LINE_COMPARE, 0xff);
WCrt(ba, CRT_ID_LACE_END, HT / 2); /* MW/16 */
WCrt(ba, CRT_ID_LACE_CNTL,
((gv->disp_flags & GRF_FLAGS_LACE) ? 0x01 : 0x00) |
((HBE & 0x40) ? 0x10 : 0x00) |
((HBE & 0x80) ? 0x20 : 0x00) |
((VBE & 0x100) ? 0x40 : 0x00) |
((VBE & 0x200) ? 0x80 : 0x00));
WGfx(ba, GCT_ID_GRAPHICS_MODE,
((TEXT || (gv->depth == 1)) ? 0x00 : 0x40));
WGfx(ba, GCT_ID_MISC, (TEXT ? 0x04 : 0x01));
WSeq(ba, SEQ_ID_EXT_SEQ_MODE,
((TEXT || (gv->depth == 1)) ? 0x00 : 0x01) |
((cltype == PICASSO) ? 0x20 : 0x80) | clkmode);
/* write 0x00 to VDAC_MASK before accessing HDR this helps
sometimes, out of "secret" application note (crest) */
vgaw(ba, VDAC_MASK, 0);
/* reset HDR "magic" access counter (crest) */
vgar(ba, VDAC_ADDRESS);
delay(200000);
vgar(ba, VDAC_MASK);
delay(200000);
vgar(ba, VDAC_MASK);
delay(200000);
vgar(ba, VDAC_MASK);
delay(200000);
vgar(ba, VDAC_MASK);
delay(200000);
switch (gv->depth) {
case 1:
case 4: /* text */
vgaw(ba, VDAC_MASK, 0);
HDE = gv->disp_width / 16;
break;
case 8:
if (clkdoub)
vgaw(ba, VDAC_MASK, 0x4a); /* Clockdouble Magic */
else
vgaw(ba, VDAC_MASK, 0);
HDE = gv->disp_width / 8;
break;
case 15:
vgaw(ba, VDAC_MASK, 0xd0);
HDE = gv->disp_width / 4;
break;
case 16:
vgaw(ba, VDAC_MASK, 0xc1);
HDE = gv->disp_width / 4;
break;
case 24:
vgaw(ba, VDAC_MASK, 0xc5);
HDE = (gv->disp_width / 8) * 3;
break;
case 32:
vgaw(ba, VDAC_MASK, 0xc5);
HDE = (gv->disp_width / 4);
break;
}
/* reset HDR "magic" access counter (crest) */
vgar(ba, VDAC_ADDRESS);
/* then enable all bit in VDAC_MASK afterwards (crest) */
vgaw(ba, VDAC_MASK, 0xff);
WCrt(ba, CRT_ID_OFFSET, HDE);
if (cl_64bit == 1) {
WCrt(ba, CRT_ID_SYNC_ADJ_GENLOCK, 0x00);
WCrt(ba, CRT_ID_OVERLAY_EXT_CTRL_REG, 0x40);
}
WCrt(ba, CRT_ID_EXT_DISP_CNTL,
((TEXT && gv->pixel_clock > 29000000) ? 0x40 : 0x00) |
0x22 |
((HDE > 0xff) ? 0x10 : 0x00));
WAttr(ba, ACT_ID_ATTR_MODE_CNTL, (TEXT ? 0x0a : 0x01));
WAttr(ba, 0x20 | ACT_ID_COLOR_PLANE_ENA,
(gv->depth == 1) ? 0x01 : 0x0f);
/* text initialization */
if (TEXT) {
cl_inittextmode(gp);
}
WSeq(ba, SEQ_ID_CURSOR_ATTR, 0x14);
WSeq(ba, SEQ_ID_CLOCKING_MODE, 0x01);
/* Pass-through */
RegOffpass(ba);
return (1);
}
void
cl_inittextmode(gp)
struct grf_softc *gp;
{
struct grfcltext_mode *tm = (struct grfcltext_mode *) gp->g_data;
volatile unsigned char *ba = gp->g_regkva;
unsigned char *fb = gp->g_fbkva;
unsigned char *c, *f, y;
unsigned short z;
/* load text font into beginning of display memory. Each character
* cell is 32 bytes long (enough for 4 planes) */
SetTextPlane(ba, 0x02);
cl_memset(fb, 0, 256 * 32);
c = (unsigned char *) (fb) + (32 * tm->fdstart);
f = tm->fdata;
for (z = tm->fdstart; z <= tm->fdend; z++, c += (32 - tm->fy))
for (y = 0; y < tm->fy; y++)
*c++ = *f++;
/* clear out text/attr planes (three screens worth) */
SetTextPlane(ba, 0x01);
cl_memset(fb, 0x07, tm->cols * tm->rows * 3);
SetTextPlane(ba, 0x00);
cl_memset(fb, 0x20, tm->cols * tm->rows * 3);
/* print out a little init msg */
c = (unsigned char *) (fb) + (tm->cols - 16);
strcpy(c, "CIRRUS");
c[6] = 0x20;
/* set colors (B&W) */
vgaw(ba, VDAC_ADDRESS_W, 0);
for (z = 0; z < 256; z++) {
unsigned char r, g, b;
y = (z & 1) ? ((z > 7) ? 2 : 1) : 0;
if (cltype == PICASSO) {
r = clconscolors[y][0];
g = clconscolors[y][1];
b = clconscolors[y][2];
} else {
b = clconscolors[y][0];
g = clconscolors[y][1];
r = clconscolors[y][2];
}
vgaw(ba, VDAC_DATA, r >> 2);
vgaw(ba, VDAC_DATA, g >> 2);
vgaw(ba, VDAC_DATA, b >> 2);
}
}
void
cl_memset(d, c, l)
unsigned char *d;
unsigned char c;
int l;
{
for (; l > 0; l--)
*d++ = c;
}
/*
* Special wakeup/passthrough registers on graphics boards
*
* The methods have diverged a bit for each board, so
* WPass(P) has been converted into a set of specific
* inline functions.
*/
static void
RegWakeup(ba)
volatile caddr_t ba;
{
switch (cltype) {
case SPECTRUM:
vgaw(ba, PASS_ADDRESS_W, 0x1f);
break;
case PICASSO:
/* Picasso needs no wakeup */
break;
case PICCOLO:
if (cl_64bit == 1)
vgaw(ba, PASS_ADDRESS_W, 0x1f);
else
vgaw(ba, PASS_ADDRESS_W, vgar(ba, PASS_ADDRESS) | 0x10);
break;
}
delay(200000);
}
static void
RegOnpass(ba)
volatile caddr_t ba;
{
switch (cltype) {
case SPECTRUM:
vgaw(ba, PASS_ADDRESS_W, 0x4f);
break;
case PICASSO:
if (cl_64bit == 0)
vgaw(ba, PASS_ADDRESS_WP, 0x01);
break;
case PICCOLO:
if (cl_64bit == 1)
vgaw(ba, PASS_ADDRESS_W, 0x4f);
else
vgaw(ba, PASS_ADDRESS_W, vgar(ba, PASS_ADDRESS) & 0xdf);
break;
}
pass_toggle = 1;
delay(200000);
}
static void
RegOffpass(ba)
volatile caddr_t ba;
{
switch (cltype) {
case SPECTRUM:
vgaw(ba, PASS_ADDRESS_W, 0x6f);
break;
case PICASSO:
if (cl_64bit == 0)
vgaw(ba, PASS_ADDRESS_W, 0xff);
break;
case PICCOLO:
if (cl_64bit == 1)
vgaw(ba, PASS_ADDRESS_W, 0x6f);
else
vgaw(ba, PASS_ADDRESS_W, vgar(ba, PASS_ADDRESS) | 0x20);
break;
}
pass_toggle = 0;
delay(200000);
}
#endif /* NGRFCL */
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