Aren
/
NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

reserve the VGA BIOS area (but don't worry if it fails)

This commit is contained in:
drochner 1998-06-12 18:41:01 +00:00
parent ad793db324
commit 96840772f5
1 changed files with 13 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
sys/dev/ic/vga.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: vga.c,v 1.4 1998/05/28 16:48:40 drochner Exp $ */
/* $NetBSD: vga.c,v 1.5 1998/06/12 18:41:01 drochner Exp $ */
/*
* Copyright (c) 1995, 1996 Carnegie-Mellon University.
@ -67,6 +67,10 @@ struct vga_config {
int nscreens;
LIST_HEAD(, vgascreen) screens;
struct vgascreen *active; /* current display */
int vc_biosmapped;
bus_space_tag_t vc_biostag;
bus_space_handle_t vc_bioshdl;
};
static int vgaconsole, vga_console_type, vga_console_attached;
@ -332,6 +336,14 @@ vga_init(vc, iot, memt)
&vh->vh_memh))
panic("vga_common_setup: mem subrange failed");
/* should only reserve the space (no need to map - save KVM) */
vc->vc_biostag = memt;
if (bus_space_map(vc->vc_biostag, 0xc0000, 0x8000, 0,
&vc->vc_bioshdl))
vc->vc_biosmapped = 0;
else
vc->vc_biosmapped = 1;
vc->nscreens = 0;
LIST_INIT(&vc->screens);
vc->active = NULL;