340 lines
7.8 KiB
C
340 lines
7.8 KiB
C
/* $NetBSD: ite_cv.c,v 1.3 1996/05/19 21:05:58 veego Exp $ */
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/*
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* Copyright (c) 1995 Michael Teske
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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 Christian E. Hopps,
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* Ezra Story, Kari Mettinen, Markus Wild, Lutz Vieweg
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* and Michael Teske.
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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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/*
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* This code is based on ite_cl.c and ite_rh.c by
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* Ezra Story, Kari Mettinen, Markus Wild, Lutz Vieweg.
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*/
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#include "grfcv.h"
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#if NGRFCV > 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 <sys/queue.h>
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#include <sys/termios.h>
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#include <sys/malloc.h>
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#include <dev/cons.h>
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#include <machine/cpu.h>
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#include <amiga/dev/itevar.h>
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#include <amiga/dev/iteioctl.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_cvreg.h>
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void cv_ite_init __P((struct ite_softc *));
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void cv_ite_deinit __P((struct ite_softc *));
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static void cv_cursor __P((struct ite_softc *, int));
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static void cv_putc __P((struct ite_softc *, int, int, int, int));
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static void cv_clear __P((struct ite_softc *, int, int, int, int));
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static void cv_scroll __P((struct ite_softc *, int, int, int, int));
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/*
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* called from grf_cv to return console priority
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*/
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int
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grfcv_cnprobe()
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{
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static int done;
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int rv;
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if (done == 0)
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#ifdef CV64CONSOLE
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rv = CN_INTERNAL;
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#else
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rv = CN_DEAD;
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#endif
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else
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#ifdef CV64CONSOLE
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rv = CN_NORMAL;
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#else
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rv = CN_DEAD;
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#endif
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done = 1;
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return(rv);
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}
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/*
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* called from grf_cv to init ite portion of
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* grf_softc struct
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*/
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void
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grfcv_iteinit(gp)
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struct grf_softc *gp;
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{
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gp->g_itecursor = cv_cursor;
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gp->g_iteputc = cv_putc;
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gp->g_iteclear = cv_clear;
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gp->g_itescroll = cv_scroll;
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gp->g_iteinit = cv_ite_init;
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gp->g_itedeinit = cv_ite_deinit;
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}
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void
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cv_ite_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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static unsigned short cv_rowc[MAXCOLS*(MAXROWS+1)];
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/*
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* Console buffer to avoid the slow reading from gfx mem.
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*/
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static unsigned short *console_buffer;
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void
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cv_ite_init(ip)
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register struct ite_softc *ip;
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{
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struct grfcvtext_mode *md;
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int i;
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static char first = 1;
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volatile unsigned short *fb = (volatile unsigned short *)ip->grf->g_fbkva;
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unsigned short *buffer;
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ip->priv = ip->grf->g_data;
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md = (struct grfcvtext_mode *) ip->grf->g_data;
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ip->cols = md->cols;
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ip->rows = md->rows;
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/* alloc buffers */
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#if 0 /* XXX malloc seems not to work in early init :( */
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if (cv_rowc)
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free(cv_rowc, M_DEVBUF);
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/* alloc all in one */
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cv_rowc = malloc(sizeof(short) * (ip->rows + 1) * (ip->cols + 2),
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M_DEVBUF, M_WAITOK);
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if (!cv_rowc)
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panic("No buffers for ite_cv!");
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#endif
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console_buffer = cv_rowc + ip->rows + 1;
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for (i = 0; i < ip->rows; i++)
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cv_rowc[i] = i * ip->cols;
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if (first) {
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for (i = 0; i < ip->rows * ip->cols; i++)
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console_buffer[i] = 0x2007;
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first = 0;
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} else { /* restore console */
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buffer = console_buffer;
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for (i = 0; i < ip->rows * ip->cols; i++) {
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*fb++ = *buffer++;
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*fb++;
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}
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}
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}
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void
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cv_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 caddr_t 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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cv_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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caddr_t fb = ip->grf->g_fbkva;
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unsigned char attr;
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unsigned char *cp;
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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 + ((cv_rowc[dy] + dx) << 2); /* *4 */
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*cp++ = (unsigned char) c;
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*cp = (unsigned char) attr;
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cp = (unsigned char *) &console_buffer[cv_rowc[dy]+dx];
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*cp++ = (unsigned char) c;
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*cp = (unsigned char) attr;
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}
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void
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cv_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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/* cv_clear and cv_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 short *dst;
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int len;
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dst = (unsigned short *) (ip->grf->g_fbkva + (((sy * ip->cols) + sx) << 2));
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for (len = w * h; len > 0 ; len--) {
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*dst = 0x2007;
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dst +=2;
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}
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dst = &console_buffer[(sy * ip->cols) + sx];
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for (len = w * h; len > 0 ; len--) {
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*dst++ = 0x2007;
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}
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}
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void
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cv_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 short *src, *dst, *dst2;
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int i;
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int len;
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src = (unsigned short *)(ip->grf->g_fbkva + (cv_rowc[sy] << 2));
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switch (dir) {
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case SCROLL_UP:
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dst = src - ((cv_rowc[count])<<1);
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len = cv_rowc[(ip->bottom_margin + 1 - sy)];
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src = &console_buffer[cv_rowc[sy]];
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if (count > sy) { /* boundary checks */
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dst2 = console_buffer;
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dst = (unsigned short *)(ip->grf->g_fbkva);
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len -= cv_rowc[(count - sy)];
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src += cv_rowc[(count - sy)];
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} else
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dst2 = &console_buffer[cv_rowc[(sy-count)]];
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bcopy (src, dst2, len << 1);
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for (i = 0; i < len; i++) {
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*dst++ = *dst2++;
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dst++;
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}
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break;
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case SCROLL_DOWN:
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dst = src + ((cv_rowc[count]) << 1);
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len = cv_rowc[(ip->bottom_margin + 1 - (sy + count))];
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src = &console_buffer[cv_rowc[sy]];
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dst2 = &console_buffer[cv_rowc[(sy + count)]];
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if (len < 0)
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return; /* do some boundary check */
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bcopy (src, dst2, len << 1);
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for (i = 0; i < len; i++) {
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*dst++ = *dst2++;
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dst++;
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}
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break;
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case SCROLL_RIGHT:
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dst = src + ((sx+count)<<1);
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src = &console_buffer[cv_rowc[sy] + sx];
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len = ip->cols - (sx + count);
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dst2 = &console_buffer[cv_rowc[sy] + sx + count];
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bcopy (src, dst2, len << 1);
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for (i = 0; i < len; i++) {
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*dst++ = *dst2++;
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dst++;
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}
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break;
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case SCROLL_LEFT:
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dst = src + ((sx - count)<<1);
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src = &console_buffer[cv_rowc[sy] + sx];
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len = ip->cols - sx;
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dst2 = &console_buffer[cv_rowc[sy] + sx - count];
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bcopy (src, dst2, len << 1);
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for (i = 0; i < len; i++) {
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*dst++ = *dst2++;
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dst++;
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}
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}
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}
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#endif /* NGRFCV */
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