f4351f7b96
mode. On this chip, we need to access some registers to set the text plane, which messes up the graphics setup. This should fix the grf3 problems reported by several people. Michael Hitch and Joerg Lehners analyzed the problem and provided the fix.
262 lines
6.6 KiB
C
262 lines
6.6 KiB
C
/* $NetBSD: ite_cl.c,v 1.4 1999/06/27 21:17:17 is Exp $ */
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/*
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* Copyright (c) 1995 Ezra Story
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* Copyright (c) 1995 Kari Mettinen
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* Copyright (c) 1994 Markus Wild
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* Copyright (c) 1994 Lutz Vieweg
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Lutz Vieweg.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "opt_amigacons.h"
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#include "grfcl.h"
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#if NGRFCL > 0
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#include <sys/param.h>
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#include <sys/conf.h>
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#include <sys/proc.h>
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#include <sys/device.h>
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#include <sys/ioctl.h>
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#include <sys/tty.h>
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#include <sys/systm.h>
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#include <dev/cons.h>
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#include <machine/cpu.h>
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#include <amiga/amiga/device.h>
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#include <amiga/dev/grfioctl.h>
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#include <amiga/dev/grfvar.h>
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#include <amiga/dev/grf_clreg.h>
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#include <amiga/dev/itevar.h>
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#ifdef CL5426CONSOLE
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int cl_console = 1;
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#else
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int cl_console = 0;
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#endif
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void cl_init __P((struct ite_softc *ip));
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void cl_cursor __P((struct ite_softc *ip, int flag));
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void cl_deinit __P((struct ite_softc *ip));
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void cl_putc __P((struct ite_softc *ip, int c, int dy, int dx, int mode));
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void cl_clear __P((struct ite_softc *ip, int sy, int sx, int h, int w));
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void cl_scroll __P((struct ite_softc *ip, int sy, int sx, int count,
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int dir));
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/*
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* Called to determine ite status. Because the connection between the
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* console & ite in this driver is rather intimate, we return CN_DEAD
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* if the cl_console is not active.
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*/
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int
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grfcl_cnprobe(void)
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{
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static int done;
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int rv;
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if (cl_console && (done == 0))
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rv = CN_INTERNAL;
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else
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rv = CN_DEAD;
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done = 1;
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return(rv);
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}
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void
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grfcl_iteinit(gp)
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struct grf_softc *gp;
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{
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gp->g_iteinit = cl_init;
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gp->g_itedeinit = cl_deinit;
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gp->g_iteclear = cl_clear;
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gp->g_iteputc = cl_putc;
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gp->g_itescroll = cl_scroll;
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gp->g_itecursor = cl_cursor;
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}
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void
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cl_init(ip)
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struct ite_softc *ip;
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{
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struct grfcltext_mode *md;
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ip->priv = ip->grf->g_data;
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md = (struct grfcltext_mode *) ip->priv;
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ip->cols = md->cols;
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ip->rows = md->rows;
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}
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void
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cl_cursor(ip, flag)
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struct ite_softc *ip;
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int flag;
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{
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volatile u_char *ba = ip->grf->g_regkva;
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switch (flag) {
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case DRAW_CURSOR:
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/*WCrt(ba, CRT_ID_CURSOR_START, & ~0x20); */
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case MOVE_CURSOR:
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flag = ip->curx + ip->cury * ip->cols;
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WCrt(ba, CRT_ID_CURSOR_LOC_LOW, flag & 0xff);
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WCrt(ba, CRT_ID_CURSOR_LOC_HIGH, flag >> 8);
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ip->cursorx = ip->curx;
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ip->cursory = ip->cury;
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break;
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case ERASE_CURSOR:
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/*WCrt(ba, CRT_ID_CURSOR_START, | 0x20); */
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case START_CURSOROPT:
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case END_CURSOROPT:
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default:
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break;
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}
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}
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void
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cl_deinit(ip)
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struct ite_softc *ip;
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{
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ip->flags &= ~ITE_INITED;
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}
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void
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cl_putc(ip, c, dy, dx, mode)
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struct ite_softc *ip;
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int c;
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int dy;
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int dx;
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int mode;
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{
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volatile unsigned char *ba = ip->grf->g_regkva;
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unsigned char *fb = ip->grf->g_fbkva;
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unsigned char attr;
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unsigned char *cp;
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if (ip->flags & ITE_INGRF)
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return;
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attr =(unsigned char) ((mode & ATTR_INV) ? (0x70) : (0x07));
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if (mode & ATTR_UL) attr = 0x01; /* ???????? */
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if (mode & ATTR_BOLD) attr |= 0x08;
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if (mode & ATTR_BLINK) attr |= 0x80;
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cp = fb + ((dy * ip->cols) + dx);
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SetTextPlane(ba,0x00);
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*cp = (unsigned char) c;
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SetTextPlane(ba,0x01);
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*cp = (unsigned char) attr;
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}
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void
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cl_clear(ip, sy, sx, h, w)
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struct ite_softc *ip;
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int sy;
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int sx;
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int h;
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int w;
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{
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/* cl_clear and cl_scroll both rely on ite passing arguments
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* which describe continuous regions. For a VT200 terminal,
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* this is safe behavior.
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*/
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unsigned char *src, *dst;
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volatile unsigned char *ba = ip->grf->g_regkva;
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int len;
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if (ip->flags & ITE_INGRF)
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return;
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dst = ip->grf->g_fbkva + (sy * ip->cols) + sx;
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src = dst + (ip->rows*ip->cols);
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len = w*h;
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SetTextPlane(ba, 0x00);
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bcopy(src, dst, len);
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SetTextPlane(ba, 0x01);
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bcopy(src, dst, len);
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}
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void
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cl_scroll(ip, sy, sx, count, dir)
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struct ite_softc *ip;
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int sy;
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int sx;
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int count;
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int dir;
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{
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unsigned char *fb;
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volatile unsigned char *ba = ip->grf->g_regkva;
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if (ip->flags & ITE_INGRF)
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return;
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fb = ip->grf->g_fbkva + sy * ip->cols;
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SetTextPlane(ba, 0x00);
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switch (dir) {
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case SCROLL_UP:
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bcopy(fb, fb - (count * ip->cols),
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(ip->bottom_margin + 1 - sy) * ip->cols);
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break;
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case SCROLL_DOWN:
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bcopy(fb, fb + (count * ip->cols),
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(ip->bottom_margin + 1 - (sy + count)) * ip->cols);
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break;
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case SCROLL_RIGHT:
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bcopy(fb+sx, fb+sx+count, ip->cols - (sx + count));
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break;
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case SCROLL_LEFT:
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bcopy(fb+sx, fb+sx-count, ip->cols - sx);
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break;
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}
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SetTextPlane(ba, 0x01);
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switch (dir) {
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case SCROLL_UP:
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bcopy(fb, fb - (count * ip->cols),
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(ip->bottom_margin + 1 - sy) * ip->cols);
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break;
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case SCROLL_DOWN:
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bcopy(fb, fb + (count * ip->cols),
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(ip->bottom_margin + 1 - (sy + count)) * ip->cols);
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break;
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case SCROLL_RIGHT:
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bcopy(fb+sx, fb+sx+count, ip->cols - (sx + count));
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break;
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case SCROLL_LEFT:
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bcopy(fb+sx, fb+sx-count, ip->cols - sx);
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break;
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}
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}
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#endif /* NGRFCL */
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