256 lines
6.4 KiB
C
256 lines
6.4 KiB
C
/* $NetBSD: ite_rh.c,v 1.13 2009/10/26 19:16:54 cegger Exp $ */
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/*
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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_retina.h"
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: ite_rh.c,v 1.13 2009/10/26 19:16:54 cegger Exp $");
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#include "grfrh.h"
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#if NGRFRH > 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_rhreg.h>
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#include <amiga/dev/itevar.h>
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#ifdef RETINA_SPEED_HACK
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static void screen_up(struct ite_softc *, int, int, int);
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static void screen_down(struct ite_softc *, int, int, int);
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#endif
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/*
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* grfrh_cnprobe is called when the console is being initialized
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* i.e. very early. grfconfig() has been called, so this implies
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* that rt_init() was called. If we are functioning rh_inited
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* will be true.
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*/
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int
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grfrh_cnprobe(void)
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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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rv = CN_INTERNAL;
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else
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rv = CN_NORMAL;
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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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grfrh_iteinit(struct grf_softc *gp)
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{
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gp->g_iteinit = rh_init;
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gp->g_itedeinit = rh_deinit;
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gp->g_iteclear = rh_clear;
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gp->g_iteputc = rh_putc;
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gp->g_itescroll = rh_scroll;
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gp->g_itecursor = rh_cursor;
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}
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void
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rh_init(struct ite_softc *ip)
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{
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struct MonDef *md;
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#if 0 /* Not in ite_rt.c - DC */
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if (ip->grf == 0)
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ip->grf = &grf_softc[ip - ite_softc];
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#endif
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ip->priv = ip->grf->g_data;
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md = (struct MonDef *) ip->priv;
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ip->cols = md->TX;
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ip->rows = md->TY;
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}
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void
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rh_cursor(struct ite_softc *ip, int flag)
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{
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#if 0
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volatile u_char *ba = ip->grf->g_regkva;
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#endif
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if (flag == START_CURSOROPT || flag == END_CURSOROPT)
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return;
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if (flag == ERASE_CURSOR) {
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#if 0
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/* disable cursor */
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WCrt (ba, CRT_ID_CURSOR_START,
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RCrt (ba, CRT_ID_CURSOR_START) | 0x20);
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#endif
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} else {
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int pos = ip->curx + ip->cury * ip->cols;
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#if 0
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/* make sure to enable cursor */
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WCrt (ba, CRT_ID_CURSOR_START,
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RCrt (ba, CRT_ID_CURSOR_START) & ~0x20);
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#endif
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/* and position it */
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RZ3SetCursorPos (ip->grf, pos);
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ip->cursorx = ip->curx;
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ip->cursory = ip->cury;
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}
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}
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#ifdef RETINA_SPEED_HACK
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static void
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screen_up(struct ite_softc *ip, int top, int bottom, int lines)
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{
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/* do some bounds-checking here.. */
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if (top >= bottom)
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return;
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if (top + lines >= bottom) {
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RZ3AlphaErase(ip->grf, 0, top, bottom - top, ip->cols);
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return;
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}
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RZ3AlphaCopy(ip->grf, 0, top+lines, 0, top, ip->cols, bottom-top-lines+1);
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RZ3AlphaErase(ip->grf, 0, bottom - lines + 1, ip->cols, lines);
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}
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static void
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screen_down (struct ite_softc *ip, int top, int bottom, int lines)
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{
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/* do some bounds-checking here.. */
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if (top >= bottom)
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return;
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if (top + lines >= bottom) {
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RZ3AlphaErase(ip->grf, 0, top, bottom - top, ip->cols);
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return;
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}
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RZ3AlphaCopy(ip->grf, 0, top, 0, top+lines, ip->cols, bottom-top-lines+1);
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RZ3AlphaErase(ip->grf, 0, top, ip->cols, lines);
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}
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#endif /* RETINA_SPEED_HACK */
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void
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rh_deinit(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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rh_putc(struct ite_softc *ip, int c, int dy, int dx, int mode)
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{
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volatile u_char * fb = ip->grf->g_fbkva;
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register u_char attr;
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attr = (mode & ATTR_INV) ? 0x21 : 0x10;
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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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fb += 4 * (dy * ip->cols + dx);
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*fb++ = c; *fb = attr;
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}
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void
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rh_clear(struct ite_softc *ip, int sy, int sx, int h, int w)
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{
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RZ3AlphaErase (ip->grf, sx, sy, w, h);
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}
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/*
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* RETINA_SPEED_HACK code seems to work on some boards and on others
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* it causes text to smear horizontally
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*/
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void
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rh_scroll(struct ite_softc *ip, int sy, int sx, int count, int dir)
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{
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#ifndef RETINA_SPEED_HACK
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u_long *fb = (u_long *)__UNVOLATILE(ip->grf->g_fbkva);
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#endif
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rh_cursor(ip, ERASE_CURSOR);
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if (dir == SCROLL_UP) {
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#ifdef RETINA_SPEED_HACK
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screen_up(ip, sy - count, ip->bottom_margin, count);
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#else
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memcpy(fb + (sy - count) * ip->cols, fb + sy * ip->cols,
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4 * (ip->bottom_margin - sy + 1) * ip->cols);
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rh_clear(ip, ip->bottom_margin + 1 - count, 0, count, ip->cols);
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#endif
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} else if (dir == SCROLL_DOWN) {
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#ifdef RETINA_SPEED_HACK
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screen_down(ip, sy, ip->bottom_margin, count);
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#else
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memcpy(fb + (sy + count) * ip->cols, fb + sy * ip->cols,
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4 * (ip->bottom_margin - sy - count + 1) * ip->cols);
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rh_clear(ip, sy, 0, count, ip->cols);
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#endif
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} else if (dir == SCROLL_RIGHT) {
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RZ3AlphaCopy(ip->grf, sx, sy, sx + count, sy,
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ip->cols - (sx + count), 1);
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RZ3AlphaErase(ip->grf, sx, sy, count, 1);
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} else {
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RZ3AlphaCopy(ip->grf, sx + count, sy, sx, sy,
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ip->cols - (sx + count), 1);
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RZ3AlphaErase(ip->grf, ip->cols - count, sy, count, 1);
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}
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#ifndef RETINA_SPEED_HACK
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rh_cursor(ip, !ERASE_CURSOR);
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#endif
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}
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#endif /* NGRFRH */
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