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Resurrect a chunk of code from the ite driver that we lost along the way. 

This code is necessary for SE/30 internal video, at a minimum.
This commit is contained in:
scottr 2000-03-17 04:46:32 +00:00
parent aab07b7582
commit 0a23aef85e
1 changed files with 14 additions and 1 deletions
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15
sys/arch/mac68k/dev/macfb.c
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@ -1,4 +1,4 @@
/* $NetBSD: macfb.c,v 1.2 2000/02/14 07:01:47 scottr Exp $ */
/* $NetBSD: macfb.c,v 1.3 2000/03/17 04:46:32 scottr Exp $ */
/*
* Copyright (c) 1998 Matt DeBergalis
* All rights reserved.
@ -129,6 +129,19 @@ extern u_int32_t mac68k_vidlen;
static int
macfb_is_console(paddr_t addr)
{
if (addr != macfb_consaddr &&
(addr >= 0xf9000000 && addr <= 0xfeffffff)) {
/*
* This is in the NuBus standard slot space range, so we
* may well have to look at 0xFssxxxxx, too. Mask off the
* slot number and duplicate it in bits 20-23, per IM:V
* pp 459, 463, and IM:VI ch 30 p 17.
* Note: this is an ugly hack and I wish I knew what
* to do about it. -- sr
*/
addr = (paddr_t)(((u_long)addr & 0xff0fffff) |
(((u_long)addr & 0x0f000000) >> 4));
}
return ((mac68k_machine.serial_console & 0x03) == 0
&& (addr == macfb_consaddr));
}