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Diffstat (limited to 'stand/i386/libi386/vbe.h')
| -rw-r--r-- | stand/i386/libi386/vbe.h | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/stand/i386/libi386/vbe.h b/stand/i386/libi386/vbe.h new file mode 100644 index 000000000000..ff28b960df9c --- /dev/null +++ b/stand/i386/libi386/vbe.h @@ -0,0 +1,163 @@ +/*- + * 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. + */ + +/* + * Default mode for VESA frame buffer. + * This mode is selected when there is no EDID inormation and + * mode is not provided by user. + * To provide consistent look with UEFI GOP, we use 800x600 here, + * and if this mode is not available, we fall back to text mode and + * VESA disabled. + */ + +#define VBE_DEFAULT_MODE "800x600" + +struct vbeinfoblock { + char VbeSignature[4]; + uint16_t VbeVersion; + uint32_t OemStringPtr; + uint32_t Capabilities; +#define VBE_CAP_DAC8 (1 << 0) /* Can switch DAC */ +#define VBE_CAP_NONVGA (1 << 1) /* Controller is not VGA comp. */ +#define VBE_CAP_SNOW (1 << 2) /* Set data during Vertical Reterace */ + 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; + /* + 1 will fix the size to 256 bytes */ + uint8_t Reserved4[189 + 1]; +} __packed; + +struct crtciinfoblock { + uint16_t HorizontalTotal; + uint16_t HorizontalSyncStart; + uint16_t HorizontalSyncEnd; + uint16_t VerticalTotal; + uint16_t VerticalSyncStart; + uint16_t VerticalSyncEnd; + uint8_t Flags; + uint32_t PixelClock; + uint16_t RefreshRate; + uint8_t Reserved[40]; +} __packed; + +struct paletteentry { + uint8_t Blue; + uint8_t Green; + uint8_t Red; + uint8_t Reserved; +} __packed; + +struct flatpanelinfo +{ + uint16_t HorizontalSize; + uint16_t VerticalSize; + uint16_t PanelType; + uint8_t RedBPP; + uint8_t GreenBPP; + uint8_t BlueBPP; + uint8_t ReservedBPP; + uint32_t ReservedOffScreenMemSize; + uint32_t ReservedOffScreenMemPtr; + + uint8_t Reserved[14]; +} __packed; + +#define VBE_BASE_MODE (0x100) /* VBE 3.0 page 18 */ +#define VBE_VALID_MODE(a) ((a) >= VBE_BASE_MODE) +#define VBE_ERROR(a) (((a) & 0xFF) != 0x4F || ((a) & 0xFF00) != 0) +#define VBE_SUCCESS (0x004F) +#define VBE_FAILED (0x014F) +#define VBE_NOTSUP (0x024F) +#define VBE_INVALID (0x034F) + +#define VGA_TEXT_MODE (3) /* 80x25 text mode */ +#define TEXT_ROWS (25) /* VGATEXT rows */ +#define TEXT_COLS (80) /* VGATEXT columns */ + +extern struct paletteentry *pe8; +extern int palette_format; + +int vga_get_reg(int, int); +int vga_get_atr(int, int); +void vga_set_atr(int, int, int); +void vga_set_indexed(int, int, int, uint8_t, uint8_t); +int vga_get_indexed(int, int, int, uint8_t); +int vga_get_crtc(int, int); +void vga_set_crtc(int, int, int); +int vga_get_seq(int, int); +void vga_set_seq(int, int, int); +int vga_get_grc(int, int); +void vga_set_grc(int, int, int); + +/* high-level VBE helpers, from vbe.c */ +void bios_set_text_mode(int); +int biosvbe_palette_format(int *); +void vbe_init(void); +bool vbe_available(void); +int vbe_default_mode(void); +int vbe_set_mode(int); +int vbe_get_mode(void); +int vbe_set_palette(const struct paletteentry *, size_t); +void vbe_modelist(int); |