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Import of OpenBSD 4.2 release kernel tree with initial code to support 
Jornada 720/728, StrongARM 1110-based handheld PC.
At this point kernel roots on NFS and boots into vfs_mountroot() and traps.
What is supported:
- glass console, Jornada framebuffer (jfb) works in 16bpp direct color mode
(needs some palette tweaks for non black/white/blue colors, i think)
- saic, SA11x0 interrupt controller (needs cleanup)
- sacom, SA11x0 UART (supported only as boot console for now)
- SA11x0 GPIO controller fully supported (but can't handle multiple interrupt
handlers on one gpio pin)
- sassp, SSP port on SA11x0 that attaches spibus
- Jornada microcontroller (jmcu) to control kbd, battery, etc throught
the SPI bus (wskbd attaches on jmcu, but not tested)
- tod functions seem work
- initial code for SA-1111 (chip companion) : this is TODO

Next important steps, i think:
- gpio and intc on sa1111
- pcmcia support for sa11x0 (and sa1111 help logic)
- REAL root on nfs when we have PCMCIA support (we may use any of supported pccard NICs)
- root on wd0! (using already supported PCMCIA-ATA)

/* $OpenBSD: vesabiosreg.h,v 1.1 2006/11/27 18:04:28 gwk Exp $ */

/*
 * Written by M. Drochner
 * Public domain.
 */


#ifndef _VESABIOSREG_H
#define _VESABIOSREG_H

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;
#ifdef VBE_2_0
	uint32_t OffScreenMemOffset;
	uint16_t OffScreenMemSize;
	uint8_t Reserved2[206];
#else
	uint32_t Reserved2;
	uint16_t Reserved3;

	/* 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];
#endif
} __attribute__ ((packed));

struct paletteentry {
	uint8_t Blue;
	uint8_t Green;
	uint8_t Red;
	uint8_t Alignment;
} __attribute__ ((packed));

#endif /* !_VESABIOSREG_H */