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* The boot loader now creates a CRTCInfoBlock structure when detailed EDID

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mode informations are available.
* This is passed to the graphics card when the mode is set in the hopes that it
  will be more conforming.
* Not yet tested on real hardware, though, therefore the VESA driver doesn't
  do anything like this yet. I will test next, but please report any problems
  with this nonetheless.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@28390 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler
2008-10-31 09:52:57 +00:00
parent 1e2b06a58b
commit b4c8ccc372
2 changed files with 104 additions and 13 deletions
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headers/private/graphics/vesa/vesa.h
+25 -3
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@@ -1,7 +1,7 @@
/*
** Copyright 2004, Axel Dörfler, [email protected]. All rights reserved.
** Distributed under the terms of the OpenBeOS License.
*/
* Copyright 2004-2008, Axel Dörfler, [email protected].
* Distributed under the terms of the MIT License.
*/
#ifndef VESA_H
#define VESA_H
@@ -119,6 +119,28 @@ struct vbe_mode_info {
#define SET_MODE_DONT_CLEAR_MEMORY (1 << 15)
/* CRTC info block structure */
struct crtc_info_block {
uint16 horizontal_total;
uint16 horizontal_sync_start;
uint16 horizontal_sync_end;
uint16 vertical_total;
uint16 vertical_sync_start;
uint16 vertical_sync_end;
uint8 flags;
uint32 pixel_clock; // in Hz
uint16 refresh_rate; // in 0.01 Hz
uint8 _reserved[40];
} _PACKED;
#define CRTC_DOUBLE_SCAN 0x01
#define CRTC_INTERLACED 0x02
#define CRTC_NEGATIVE_HSYNC 0x04
#define CRTC_NEGATIVE_VSYNC 0x08
/* VBE 3.0 protected mode interface
* The BIOS area can be scanned for the protected mode
* signature that identifies the structure below.