211 lines
5.9 KiB
C
211 lines
5.9 KiB
C
#ifndef _IPXE_VESAFB_H
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#define _IPXE_VESAFB_H
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/** @file
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*
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* VESA frame buffer console
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*
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*/
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FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
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#include <stdint.h>
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#include <realmode.h>
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/** INT 10,4f00: return controller information */
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#define VBE_CONTROLLER_INFO 0x4f00
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/** VBE controller information */
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struct vbe_controller_info {
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/** VBE signature */
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uint32_t vbe_signature;
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/** VBE minor version */
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uint8_t vbe_minor_version;
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/** VBE major version */
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uint8_t vbe_major_version;
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/** Pointer to OEM string */
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struct segoff oem_string_ptr;
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/** Capabilities of graphics controller */
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uint32_t capabilities;
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/** Pointer to video mode list */
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struct segoff video_mode_ptr;
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/** Number of 64kB memory blocks */
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uint16_t total_memory;
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/** VBE implementation software revision */
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uint16_t oem_software_rev;
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/** Pointer to vendor name string */
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struct segoff oem_vendor_name_ptr;
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/** Pointer to product name string */
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struct segoff oem_product_name_ptr;
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/** Pointer to product revision string */
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struct segoff oem_product_rev_ptr;
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/** Reserved for VBE implementation scratch area */
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uint8_t reserved[222];
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/* VBE2.0 defines an additional 256-byte data area for
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* including the OEM strings inline within the VBE information
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* block; we omit this to reduce the amount of base memory
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* required for VBE calls.
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*/
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} __attribute__ (( packed ));
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/** VBE controller information signature */
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#define VBE_CONTROLLER_SIGNATURE \
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( ( 'V' << 0 ) | ( 'E' << 8 ) | ( 'S' << 16 ) | ( 'A' << 24 ) )
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/** VBE mode list end marker */
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#define VBE_MODE_END 0xffff
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/** INT 10,4f01: return VBE mode information */
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#define VBE_MODE_INFO 0x4f01
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/** VBE mode information */
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struct vbe_mode_info {
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/** Mode attributes */
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uint16_t mode_attributes;
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/** Window A attributes */
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uint8_t win_a_attributes;
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/** Window B attributes */
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uint8_t win_b_attributes;
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/** Window granularity */
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uint16_t win_granularity;
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/** Window size */
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uint16_t win_size;
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/** Window A start segment */
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uint16_t win_a_segment;
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/** Window B start segment */
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uint16_t win_b_segment;
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/** Pointer to window function */
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struct segoff win_func_ptr;
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/** Bytes per scan line */
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uint16_t bytes_per_scan_line;
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/** Horizontal resolution in pixels or characters */
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uint16_t x_resolution;
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/** Vertical resolution in pixels or characters */
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uint16_t y_resolution;
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/** Character cell width in pixels */
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uint8_t x_char_size;
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/** Character cell height in pixels */
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uint8_t y_char_size;
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/** Number of memory planes */
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uint8_t number_of_planes;
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/** Bits per pixel */
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uint8_t bits_per_pixel;
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/** Number of banks */
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uint8_t number_of_banks;
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/** Memory model type */
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uint8_t memory_model;
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/** Bank size in kB */
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uint8_t bank_size;
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/** Number of images */
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uint8_t number_of_image_pages;
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/** Reserved for page function */
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uint8_t reserved_1;
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/** Size of direct colour red mask in bits */
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uint8_t red_mask_size;
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/** Bit position of LSB of red mask */
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uint8_t red_field_position;
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/** Size of direct colour green mask in bits */
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uint8_t green_mask_size;
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/** Bit position of LSB of green mask */
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uint8_t green_field_position;
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/** Size of direct colour blue mask in bits */
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uint8_t blue_mask_size;
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/** Bit position of LSB of blue mask */
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uint8_t blue_field_position;
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/** Size of direct colour reserved mask in bits */
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uint8_t rsvd_mask_size;
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/** Bit position of LSB of reserved mask */
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uint8_t rsvd_field_position;
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/** Direct colour mode attributes */
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uint8_t direct_colour_mode_info;
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/** Physical address for flat memory frame buffer */
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uint32_t phys_base_ptr;
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/** Pointer to start of off-screen memory */
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uint32_t off_screen_mem_offset;
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/** Amount of off-screen memory in 1kB units */
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uint16_t off_screen_mem_size;
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/** Reserved */
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uint8_t reserved_2[206];
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} __attribute__ (( packed ));
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/** VBE mode attributes */
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enum vbe_mode_attributes {
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/** Mode supported in hardware */
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VBE_MODE_ATTR_SUPPORTED = 0x0001,
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/** TTY output functions supported by BIOS */
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VBE_MODE_ATTR_TTY = 0x0004,
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/** Colour mode */
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VBE_MODE_ATTR_COLOUR = 0x0008,
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/** Graphics mode */
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VBE_MODE_ATTR_GRAPHICS = 0x0010,
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/** Not a VGA compatible mode */
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VBE_MODE_ATTR_NOT_VGA = 0x0020,
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/** VGA compatible windowed memory mode is not available */
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VBE_MODE_ATTR_NOT_WINDOWED = 0x0040,
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/** Linear frame buffer mode is available */
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VBE_MODE_ATTR_LINEAR = 0x0080,
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/** Double scan mode is available */
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VBE_MODE_ATTR_DOUBLE = 0x0100,
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/** Interlaced mode is available */
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VBE_MODE_ATTR_INTERLACED = 0x0200,
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/** Hardware triple buffering support */
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VBE_MODE_ATTR_TRIPLE_BUF = 0x0400,
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/** Hardware stereoscopic display support */
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VBE_MODE_ATTR_STEREO = 0x0800,
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/** Dual display start address support */
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VBE_MODE_ATTR_DUAL = 0x1000,
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};
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/** VBE mode memory models */
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enum vbe_mode_memory_model {
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/** Text mode */
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VBE_MODE_MODEL_TEXT = 0x00,
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/** CGA graphics mode */
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VBE_MODE_MODEL_CGA = 0x01,
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/** Hercules graphics mode */
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VBE_MODE_MODEL_HERCULES = 0x02,
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/** Planar mode */
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VBE_MODE_MODEL_PLANAR = 0x03,
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/** Packed pixel mode */
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VBE_MODE_MODEL_PACKED_PIXEL = 0x04,
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/** Non-chain 4, 256 colour mode */
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VBE_MODE_MODEL_NON_CHAIN_4 = 0x05,
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/** Direct colour mode */
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VBE_MODE_MODEL_DIRECT_COLOUR = 0x06,
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/** YUV mode */
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VBE_MODE_MODEL_YUV = 0x07,
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};
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/** INT 10,4f02: set VBE mode */
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#define VBE_SET_MODE 0x4f02
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/** VBE linear frame buffer mode bit */
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#define VBE_MODE_LINEAR 0x4000
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/** INT 10,1130: get font information */
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#define VBE_GET_FONT 0x1130
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/** Font sets */
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enum vbe_font_set {
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/** 8x14 character font */
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VBE_FONT_8x14 = 0x0200,
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/** 8x8 double dot font */
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VBE_FONT_8x8_DOUBLE = 0x0300,
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/** 8x8 double dot font (high 128 characters) */
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VBE_FONT_8x8_DOUBLE_HIGH = 0x0400,
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/** 9x14 alpha alternate font */
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VBE_FONT_9x14_ALPHA_ALT = 0x0500,
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/** 8x16 font */
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VBE_FONT_8x16 = 0x0600,
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/** 9x16 alternate font */
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VBE_FONT_9x16_ALT = 0x0700,
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};
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/** INT 10,00: set VGA mode */
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#define VBE_SET_VGA_MODE 0x0000
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/** INT 10,0f: get VGA mode */
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#define VBE_GET_VGA_MODE 0x0f00
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#endif /* _IPXE_VESAFB_H */
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