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Don't even try to output to, scroll or clear the device if we are in graphics

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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.
This commit is contained in:
is 1999-06-27 21:17:17 +00:00
parent 87d31b1197
commit f4351f7b96
1 changed files with 10 additions and 1 deletions
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11
sys/arch/amiga/dev/ite_cl.c
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@ -1,4 +1,4 @@
/* $NetBSD: ite_cl.c,v 1.3 1999/03/25 23:20:00 is Exp $ */
/* $NetBSD: ite_cl.c,v 1.4 1999/06/27 21:17:17 is Exp $ */
/*
* Copyright (c) 1995 Ezra Story
@ -161,6 +161,9 @@ cl_putc(ip, c, dy, dx, mode)
unsigned char attr;
unsigned char *cp;
if (ip->flags & ITE_INGRF)
return;
attr =(unsigned char) ((mode & ATTR_INV) ? (0x70) : (0x07));
if (mode & ATTR_UL) attr = 0x01; /* ???????? */
if (mode & ATTR_BOLD) attr |= 0x08;
@ -189,6 +192,9 @@ cl_clear(ip, sy, sx, h, w)
volatile unsigned char *ba = ip->grf->g_regkva;
int len;
if (ip->flags & ITE_INGRF)
return;
dst = ip->grf->g_fbkva + (sy * ip->cols) + sx;
src = dst + (ip->rows*ip->cols);
len = w*h;
@ -210,6 +216,9 @@ cl_scroll(ip, sy, sx, count, dir)
unsigned char *fb;
volatile unsigned char *ba = ip->grf->g_regkva;
if (ip->flags & ITE_INGRF)
return;
fb = ip->grf->g_fbkva + sy * ip->cols;
SetTextPlane(ba, 0x00);