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2010-01-15 Vladimir Serbinenko <phcoder@gmail.com>

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Video multiboot support.

	* include/grub/multiboot.h (grub_multiboot_set_accepts_video):
	New prototype.
	* include/multiboot.h: Resynced with multiboot specification.
	* include/multiboot2.h: Likewise.
	* loader/i386/multiboot.c (UNSUPPORTED_FLAGS): Support video flags.
	(grub_multiboot): Parse MULTIBOOT_VIDEO_MODE fields.
	* loader/i386/multiboot_mbi.c (DEFAULT_VIDEO_MODE): New constant.
	(HAS_VGA_TEXT): Likewise.
	(accepts_video): New variable.
	(grub_multiboot_set_accepts_video): New function.
	(grub_multiboot_get_mbi_size): Account for video structures.
	(set_video_mode): New function.
	(retrieve_video_parameters): Likewise.
	(grub_multiboot_make_mbi): Fill video fields.
This commit is contained in:
Vladimir 'phcoder' Serbinenko 2010-01-15 16:30:57 +01:00
parent 0d90e8a6fb
commit 884ade5654
6 changed files with 252 additions and 8 deletions
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38
include/multiboot.h
View file

@ -85,10 +85,12 @@
#define MULTIBOOT_INFO_APM_TABLE 0x00000400
/* Is there video information? */
#define MULTIBOOT_INFO_VIDEO_INFO 0x00000800
#define MULTIBOOT_INFO_VBE_INFO 0x00000800
#define MULTIBOOT_INFO_FRAMEBUFFER_INFO 0x00001000
#ifndef ASM_FILE
typedef unsigned char multiboot_uint8_t;
typedef unsigned short multiboot_uint16_t;
typedef unsigned int multiboot_uint32_t;
typedef unsigned long long multiboot_uint64_t;
@ -187,9 +189,43 @@ struct multiboot_info
multiboot_uint16_t vbe_interface_seg;
multiboot_uint16_t vbe_interface_off;
multiboot_uint16_t vbe_interface_len;
multiboot_uint64_t framebuffer_addr;
multiboot_uint32_t framebuffer_pitch;
multiboot_uint32_t framebuffer_width;
multiboot_uint32_t framebuffer_height;
multiboot_uint8_t framebuffer_bpp;
#define MULTIBOOT_FRAMEBUFFER_TYPE_INDEXED 0
#define MULTIBOOT_FRAMEBUFFER_TYPE_RGB 1
#define MULTIBOOT_FRAMEBUFFER_TYPE_EGA_TEXT 2
multiboot_uint8_t framebuffer_type;
union
{
struct
{
multiboot_uint32_t framebuffer_palette_addr;
multiboot_uint16_t framebuffer_palette_num_colors;
};
struct
{
multiboot_uint8_t framebuffer_red_field_position;
multiboot_uint8_t framebuffer_red_mask_size;
multiboot_uint8_t framebuffer_green_field_position;
multiboot_uint8_t framebuffer_green_mask_size;
multiboot_uint8_t framebuffer_blue_field_position;
multiboot_uint8_t framebuffer_blue_mask_size;
};
};
};
typedef struct multiboot_info multiboot_info_t;
struct multiboot_color
{
multiboot_uint8_t red;
multiboot_uint8_t green;
multiboot_uint8_t blue;
};
struct multiboot_mmap_entry
{
multiboot_uint32_t size;