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Detect display controller. Distinguish VGA and VBE display devices.

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svn path=/trunk/; revision=9742
This commit is contained in:
Eric Kohl 2004-06-20 09:12:10 +00:00
parent aeb397b5ab
commit b23ea08f8a
1 changed files with 72 additions and 0 deletions
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72
freeldr/freeldr/arch/i386/hardware.c
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@ -25,6 +25,7 @@
#include <disk.h>
#include <mm.h>
#include <portio.h>
#include <video.h>
#include "../../reactos/registry.h"
#include "hardware.h"
@ -1930,6 +1931,75 @@ DetectPS2Mouse(HKEY BusKey)
}
static VOID
DetectDisplayController(HKEY BusKey)
{
CHAR Buffer[80];
HKEY ControllerKey;
U16 VesaVersion;
S32 Error;
Error = RegCreateKey(BusKey,
"DisplayController\\0",
&ControllerKey);
if (Error != ERROR_SUCCESS)
{
DbgPrint((DPRINT_HWDETECT, "Failed to create controller key\n"));
return;
}
DbgPrint((DPRINT_HWDETECT, "Created key: PointerController\\0\n"));
/* Set 'ComponentInformation' value */
SetComponentInformation(ControllerKey,
0x00,
0,
0xFFFFFFFF);
/* FIXME: Set 'ComponentInformation' value */
VesaVersion = BiosIsVesaSupported();
if (VesaVersion != 0)
{
DbgPrint((DPRINT_HWDETECT,
"VESA version %c.%c\n",
(VesaVersion >> 8) + '0',
(VesaVersion & 0xFF) + '0'));
}
else
{
DbgPrint((DPRINT_HWDETECT,
"VESA not supported\n"));
}
if (VesaVersion >= 0x0200)
{
strcpy(Buffer,
"VBE Display");
}
else
{
strcpy(Buffer,
"VGA Display");
}
/* Set 'Identifier' value */
Error = RegSetValue(ControllerKey,
"Identifier",
REG_SZ,
(PU8)Buffer,
strlen(Buffer) + 1);
if (Error != ERROR_SUCCESS)
{
DbgPrint((DPRINT_HWDETECT,
"RegSetValue() failed (Error %u)\n",
(int)Error));
return;
}
/* FIXME: Add display peripheral (monitor) data */
}
static VOID
DetectIsaBios(HKEY SystemKey, U32 *BusNumber)
{
@ -2019,6 +2089,8 @@ DetectIsaBios(HKEY SystemKey, U32 *BusNumber)
DetectPS2Mouse(BusKey);
DetectDisplayController(BusKey);
/* FIXME: Detect more ISA devices */
}