165 lines
5.4 KiB
C
165 lines
5.4 KiB
C
/*-
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* Copyright (c) 2009 Jared D. McNeill <jmcneill@invisible.ca>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Default mode for VESA frame buffer.
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* This mode is selected when there is no EDID inormation and
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* mode is not provided by user.
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* To provide consistent look with UEFI GOP, we use 800x600 here,
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* and if this mode is not available, we fall back to text mode and
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* VESA disabled.
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*/
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#define VBE_DEFAULT_MODE "800x600"
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struct vbeinfoblock {
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char VbeSignature[4];
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uint16_t VbeVersion;
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uint32_t OemStringPtr;
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uint32_t Capabilities;
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#define VBE_CAP_DAC8 (1 << 0) /* Can switch DAC */
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#define VBE_CAP_NONVGA (1 << 1) /* Controller is not VGA comp. */
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#define VBE_CAP_SNOW (1 << 2) /* Set data during Vertical Reterace */
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uint32_t VideoModePtr;
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uint16_t TotalMemory;
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uint16_t OemSoftwareRev;
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uint32_t OemVendorNamePtr, OemProductNamePtr, OemProductRevPtr;
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/* data area, in total max 512 bytes for VBE 2.0 */
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uint8_t Reserved[222];
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uint8_t OemData[256];
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} __packed;
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struct modeinfoblock {
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/* Mandatory information for all VBE revisions */
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uint16_t ModeAttributes;
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uint8_t WinAAttributes, WinBAttributes;
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uint16_t WinGranularity, WinSize, WinASegment, WinBSegment;
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uint32_t WinFuncPtr;
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uint16_t BytesPerScanLine;
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/* Mandatory information for VBE 1.2 and above */
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uint16_t XResolution, YResolution;
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uint8_t XCharSize, YCharSize, NumberOfPlanes, BitsPerPixel;
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uint8_t NumberOfBanks, MemoryModel, BankSize, NumberOfImagePages;
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uint8_t Reserved1;
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/* Direct Color fields
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(required for direct/6 and YUV/7 memory models) */
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uint8_t RedMaskSize, RedFieldPosition;
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uint8_t GreenMaskSize, GreenFieldPosition;
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uint8_t BlueMaskSize, BlueFieldPosition;
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uint8_t RsvdMaskSize, RsvdFieldPosition;
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uint8_t DirectColorModeInfo;
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/* Mandatory information for VBE 2.0 and above */
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uint32_t PhysBasePtr;
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uint32_t OffScreenMemOffset; /* reserved in VBE 3.0 and above */
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uint16_t OffScreenMemSize; /* reserved in VBE 3.0 and above */
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/* Mandatory information for VBE 3.0 and above */
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uint16_t LinBytesPerScanLine;
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uint8_t BnkNumberOfImagePages;
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uint8_t LinNumberOfImagePages;
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uint8_t LinRedMaskSize, LinRedFieldPosition;
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uint8_t LinGreenMaskSize, LinGreenFieldPosition;
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uint8_t LinBlueMaskSize, LinBlueFieldPosition;
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uint8_t LinRsvdMaskSize, LinRsvdFieldPosition;
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uint32_t MaxPixelClock;
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/* + 1 will fix the size to 256 bytes */
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uint8_t Reserved4[189 + 1];
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} __packed;
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struct crtciinfoblock {
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uint16_t HorizontalTotal;
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uint16_t HorizontalSyncStart;
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uint16_t HorizontalSyncEnd;
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uint16_t VerticalTotal;
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uint16_t VerticalSyncStart;
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uint16_t VerticalSyncEnd;
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uint8_t Flags;
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uint32_t PixelClock;
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uint16_t RefreshRate;
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uint8_t Reserved[40];
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} __packed;
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struct paletteentry {
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uint8_t Blue;
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uint8_t Green;
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uint8_t Red;
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uint8_t Reserved;
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} __packed;
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struct flatpanelinfo
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{
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uint16_t HorizontalSize;
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uint16_t VerticalSize;
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uint16_t PanelType;
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uint8_t RedBPP;
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uint8_t GreenBPP;
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uint8_t BlueBPP;
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uint8_t ReservedBPP;
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uint32_t ReservedOffScreenMemSize;
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uint32_t ReservedOffScreenMemPtr;
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uint8_t Reserved[14];
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} __packed;
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#define VBE_BASE_MODE (0x100) /* VBE 3.0 page 18 */
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#define VBE_VALID_MODE(a) ((a) >= VBE_BASE_MODE)
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#define VBE_ERROR(a) (((a) & 0xFF) != 0x4F || ((a) & 0xFF00) != 0)
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#define VBE_SUCCESS (0x004F)
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#define VBE_FAILED (0x014F)
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#define VBE_NOTSUP (0x024F)
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#define VBE_INVALID (0x034F)
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#define VGA_TEXT_MODE (3) /* 80x25 text mode */
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#define TEXT_ROWS (25) /* VGATEXT rows */
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#define TEXT_COLS (80) /* VGATEXT columns */
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extern struct paletteentry *pe8;
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extern int palette_format;
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int vga_get_reg(int, int);
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int vga_get_atr(int, int);
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void vga_set_atr(int, int, int);
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void vga_set_indexed(int, int, int, uint8_t, uint8_t);
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int vga_get_indexed(int, int, int, uint8_t);
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int vga_get_crtc(int, int);
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void vga_set_crtc(int, int, int);
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int vga_get_seq(int, int);
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void vga_set_seq(int, int, int);
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int vga_get_grc(int, int);
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void vga_set_grc(int, int, int);
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/* high-level VBE helpers, from vbe.c */
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bool vbe_is_vga(void);
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void bios_set_text_mode(int);
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int biosvbe_palette_format(int *);
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void vbe_init(void);
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bool vbe_available(void);
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int vbe_default_mode(void);
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int vbe_set_mode(int);
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int vbe_get_mode(void);
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int vbe_set_palette(const struct paletteentry *, size_t);
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void vbe_modelist(int);
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