113 lines
4.1 KiB
C
113 lines
4.1 KiB
C
/* $NetBSD: vbe.h,v 1.3 2011/02/09 04:37:54 jmcneill Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 2009 Jared D. McNeill <jmcneill@invisible.ca>
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
|
|
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
|
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
|
|
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#define VBE_DEFAULT_MODE 0x101 /* 640x480x8 */
|
|
|
|
struct vbeinfoblock {
|
|
char VbeSignature[4];
|
|
uint16_t VbeVersion;
|
|
uint32_t OemStringPtr;
|
|
uint32_t Capabilities;
|
|
uint32_t VideoModePtr;
|
|
uint16_t TotalMemory;
|
|
uint16_t OemSoftwareRev;
|
|
uint32_t OemVendorNamePtr, OemProductNamePtr, OemProductRevPtr;
|
|
/* data area, in total max 512 bytes for VBE 2.0 */
|
|
uint8_t Reserved[222];
|
|
uint8_t OemData[256];
|
|
} __packed;
|
|
|
|
struct modeinfoblock {
|
|
/* Mandatory information for all VBE revisions */
|
|
uint16_t ModeAttributes;
|
|
uint8_t WinAAttributes, WinBAttributes;
|
|
uint16_t WinGranularity, WinSize, WinASegment, WinBSegment;
|
|
uint32_t WinFuncPtr;
|
|
uint16_t BytesPerScanLine;
|
|
/* Mandatory information for VBE 1.2 and above */
|
|
uint16_t XResolution, YResolution;
|
|
uint8_t XCharSize, YCharSize, NumberOfPlanes, BitsPerPixel;
|
|
uint8_t NumberOfBanks, MemoryModel, BankSize, NumberOfImagePages;
|
|
uint8_t Reserved1;
|
|
/* Direct Color fields
|
|
(required for direct/6 and YUV/7 memory models) */
|
|
uint8_t RedMaskSize, RedFieldPosition;
|
|
uint8_t GreenMaskSize, GreenFieldPosition;
|
|
uint8_t BlueMaskSize, BlueFieldPosition;
|
|
uint8_t RsvdMaskSize, RsvdFieldPosition;
|
|
uint8_t DirectColorModeInfo;
|
|
/* Mandatory information for VBE 2.0 and above */
|
|
uint32_t PhysBasePtr;
|
|
uint32_t OffScreenMemOffset; /* reserved in VBE 3.0 and above */
|
|
uint16_t OffScreenMemSize; /* reserved in VBE 3.0 and above */
|
|
|
|
/* Mandatory information for VBE 3.0 and above */
|
|
uint16_t LinBytesPerScanLine;
|
|
uint8_t BnkNumberOfImagePages;
|
|
uint8_t LinNumberOfImagePages;
|
|
uint8_t LinRedMaskSize, LinRedFieldPosition;
|
|
uint8_t LinGreenMaskSize, LinGreenFieldPosition;
|
|
uint8_t LinBlueMaskSize, LinBlueFieldPosition;
|
|
uint8_t LinRsvdMaskSize, LinRsvdFieldPosition;
|
|
uint32_t MaxPixelClock;
|
|
uint8_t Reserved4[189];
|
|
} __packed;
|
|
|
|
struct paletteentry {
|
|
uint8_t Blue;
|
|
uint8_t Green;
|
|
uint8_t Red;
|
|
uint8_t Alignment;
|
|
} __packed;
|
|
|
|
/* EDID */
|
|
#define EDID_MAGIC { 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00 }
|
|
#define EDID_DESC_BLOCK 0x36
|
|
|
|
/* low-level VBE calls, from biosvbe.S */
|
|
int biosvbe_info(struct vbeinfoblock *);
|
|
int biosvbe_set_mode(int);
|
|
int biosvbe_get_mode_info(int, struct modeinfoblock *);
|
|
int biosvbe_palette_format(int);
|
|
int biosvbe_palette_data(int, int, struct paletteentry *);
|
|
int biosvbe_ddc_caps(void);
|
|
int biosvbe_ddc_read_edid(int, void *);
|
|
|
|
/* high-level VBE helpers, from vbe.c */
|
|
void vbe_init(void);
|
|
int vbe_commit(void);
|
|
int vbe_available(void);
|
|
int vbe_set_mode(int);
|
|
int vbe_set_palette(const uint8_t *, int);
|
|
void vbe_modelist(void);
|
|
|
|
void command_vesa(char *);
|
|
|
|
/* adjust physical address; boot code runs with %ds having a 64k offset */
|
|
#define VBEPHYPTR(x) ((uint8_t *)((x) - (64 * 1024)))
|