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NetBSD/sys/arch/amiga/dev/ite_cv3d.c

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/* $NetBSD: ite_cv3d.c,v 1.2 1997/11/10 12:17:20 is Exp $ */
/*
* Copyright (c) 1995 Michael Teske
* 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 Christian E. Hopps,
* Ezra Story, Kari Mettinen, Markus Wild, Lutz Vieweg
* and Michael Teske.
* 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.
*/
/*
* This code is based on ite_cl.c and ite_rh.c by
* Ezra Story, Kari Mettinen, Markus Wild, Lutz Vieweg.
*/
#include "grfcv3d.h"
#if NGRFCV3D > 0
#include <sys/param.h>
#include <sys/conf.h>
#include <sys/proc.h>
#include <sys/device.h>
#include <sys/ioctl.h>
#include <sys/tty.h>
#include <sys/systm.h>
#include <sys/queue.h>
#include <sys/termios.h>
#include <sys/malloc.h>
#include <dev/cons.h>
#include <machine/cpu.h>
#include <amiga/dev/itevar.h>
#include <amiga/dev/iteioctl.h>
#include <amiga/amiga/device.h>
#include <amiga/dev/grfioctl.h>
#include <amiga/dev/grfvar.h>
#include <amiga/dev/grf_cv3dreg.h>
void cv3d_ite_init __P((struct ite_softc *));
void cv3d_ite_deinit __P((struct ite_softc *));
static void cv3d_cursor __P((struct ite_softc *, int));
static void cv3d_putc __P((struct ite_softc *, int, int, int, int));
static void cv3d_clear __P((struct ite_softc *, int, int, int, int));
static void cv3d_scroll __P((struct ite_softc *, int, int, int, int));
/*
* called from grf_cv3d to return console priority
*/
int
grfcv3d_cnprobe()
{
static int done;
int rv;
if (done == 0)
#ifdef CV3DCONSOLE
rv = CN_INTERNAL;
#else
rv = CN_DEAD;
#endif
else
#ifdef CV3DCONSOLE
rv = CN_NORMAL;
#else
rv = CN_DEAD;
#endif
done = 1;
return(rv);
}
/*
* called from grf_cv3d to init ite portion of
* grf_softc struct
*/
void
grfcv3d_iteinit(gp)
struct grf_softc *gp;
{
gp->g_itecursor = cv3d_cursor;
gp->g_iteputc = cv3d_putc;
gp->g_iteclear = cv3d_clear;
gp->g_itescroll = cv3d_scroll;
gp->g_iteinit = cv3d_ite_init;
gp->g_itedeinit = cv3d_ite_deinit;
}
void
cv3d_ite_deinit(ip)
struct ite_softc *ip;
{
ip->flags &= ~ITE_INITED;
}
static unsigned short cv3d_rowc[MAXCOLS*(MAXROWS+1)];
/*
* Console buffer to avoid the slow reading from gfx mem.
*/
static unsigned short *console_buffer;
void
cv3d_ite_init(ip)
register struct ite_softc *ip;
{
struct grfcv3dtext_mode *md;
int i;
static char first = 1;
volatile unsigned short *fb = (volatile unsigned short *)ip->grf->g_fbkva;
unsigned short *buffer;
ip->priv = ip->grf->g_data;
md = (struct grfcv3dtext_mode *) ip->grf->g_data;
ip->cols = md->cols;
ip->rows = md->rows;
/* alloc buffers */
#if 0 /* XXX malloc seems not to work in early init :( */
if (cv3d_rowc)
free(cv3d_rowc, M_DEVBUF);
/* alloc all in one */
cv3d_rowc = malloc(sizeof(short) * (ip->rows + 1) * (ip->cols + 2),
M_DEVBUF, M_WAITOK);
if (!cv3d_rowc)
panic("No buffers for ite_cv3d!");
#endif
console_buffer = cv3d_rowc + ip->rows + 1;
for (i = 0; i < ip->rows; i++)
cv3d_rowc[i] = i * ip->cols;
if (first) {
for (i = 0; i < ip->rows * ip->cols; i++)
console_buffer[i] = 0x2007;
first = 0;
} else { /* restore console */
buffer = console_buffer;
for (i = 0; i < ip->rows * ip->cols; i++) {
*fb++ = *buffer++;
*fb++;
}
}
}
void
cv3d_cursor(ip, flag)
struct ite_softc *ip;
int flag;
{
volatile caddr_t ba = ip->grf->g_regkva;
switch (flag) {
case DRAW_CURSOR:
/*WCrt(ba, CRT_ID_CURSOR_START, & ~0x20); */
case MOVE_CURSOR:
flag = ip->curx + ip->cury * ip->cols;
WCrt(ba, CRT_ID_CURSOR_LOC_LOW, flag & 0xff);
WCrt(ba, CRT_ID_CURSOR_LOC_HIGH, flag >> 8);
ip->cursorx = ip->curx;
ip->cursory = ip->cury;
break;
case ERASE_CURSOR:
/*WCrt(ba, CRT_ID_CURSOR_START, | 0x20); */
case START_CURSOROPT:
case END_CURSOROPT:
default:
break;
}
}
void
cv3d_putc(ip, c, dy, dx, mode)
struct ite_softc *ip;
int c;
int dy;
int dx;
int mode;
{
caddr_t fb = ip->grf->g_fbkva;
unsigned char attr;
unsigned char *cp;
attr = (unsigned char) ((mode & ATTR_INV) ? (0x70) : (0x07));
if (mode & ATTR_UL) attr = 0x01;
if (mode & ATTR_BOLD) attr |= 0x08;
if (mode & ATTR_BLINK) attr |= 0x80;
cp = fb + ((cv3d_rowc[dy] + dx) << 2); /* *4 */
*cp++ = (unsigned char) c;
*cp = (unsigned char) attr;
cp = (unsigned char *) &console_buffer[cv3d_rowc[dy]+dx];
*cp++ = (unsigned char) c;
*cp = (unsigned char) attr;
}
void
cv3d_clear(ip, sy, sx, h, w)
struct ite_softc *ip;
int sy;
int sx;
int h;
int w;
{
/* cv3d_clear and cv3d_scroll both rely on ite passing arguments
* which describe continuous regions. For a VT200 terminal,
* this is safe behavior.
*/
unsigned short *dst;
int len;
dst = (unsigned short *) (ip->grf->g_fbkva + (((sy * ip->cols) + sx) << 2));
for (len = w * h; len > 0 ; len--) {
*dst = 0x2007;
dst +=2;
}
dst = &console_buffer[(sy * ip->cols) + sx];
for (len = w * h; len > 0 ; len--) {
*dst++ = 0x2007;
}
}
void
cv3d_scroll(ip, sy, sx, count, dir)
struct ite_softc *ip;
int sy;
int sx;
int count;
int dir;
{
unsigned short *src, *dst, *dst2;
int i;
int len;
src = (unsigned short *)(ip->grf->g_fbkva + (cv3d_rowc[sy] << 2));
switch (dir) {
case SCROLL_UP:
dst = src - ((cv3d_rowc[count])<<1);
len = cv3d_rowc[(ip->bottom_margin + 1 - sy)];
src = &console_buffer[cv3d_rowc[sy]];
if (count > sy) { /* boundary checks */
dst2 = console_buffer;
dst = (unsigned short *)(ip->grf->g_fbkva);
len -= cv3d_rowc[(count - sy)];
src += cv3d_rowc[(count - sy)];
} else
dst2 = &console_buffer[cv3d_rowc[(sy-count)]];
bcopy (src, dst2, len << 1);
for (i = 0; i < len; i++) {
*dst++ = *dst2++;
dst++;
}
break;
case SCROLL_DOWN:
dst = src + ((cv3d_rowc[count]) << 1);
len = cv3d_rowc[(ip->bottom_margin + 1 - (sy + count))];
src = &console_buffer[cv3d_rowc[sy]];
dst2 = &console_buffer[cv3d_rowc[(sy + count)]];
if (len < 0)
return; /* do some boundary check */
bcopy (src, dst2, len << 1);
for (i = 0; i < len; i++) {
*dst++ = *dst2++;
dst++;
}
break;
case SCROLL_RIGHT:
dst = src + ((sx+count)<<1);
src = &console_buffer[cv3d_rowc[sy] + sx];
len = ip->cols - (sx + count);
dst2 = &console_buffer[cv3d_rowc[sy] + sx + count];
bcopy (src, dst2, len << 1);
for (i = 0; i < len; i++) {
*dst++ = *dst2++;
dst++;
}
break;
case SCROLL_LEFT:
dst = src + ((sx - count)<<1);
src = &console_buffer[cv3d_rowc[sy] + sx];
len = ip->cols - sx;
dst2 = &console_buffer[cv3d_rowc[sy] + sx - count];
bcopy (src, dst2, len << 1);
for (i = 0; i < len; i++) {
*dst++ = *dst2++;
dst++;
}
}
}
#endif /* NGRFCV3D */
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