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(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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C
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#ifndef _LINUX_COREBOOT_H#define _LINUX_COREBOOT_H
#include <linux/compiler_attributes.h>#include <linux/stddef.h>#include <linux/types.h>
typedef __aligned(4) u64 cb_u64;
/* List of coreboot entry structures that is used */
#define CB_TAG_FRAMEBUFFER 0x12#define LB_TAG_CBMEM_ENTRY 0x31
/* Generic */struct coreboot_table_entry { u32 tag; u32 size;};
/* Points to a CBMEM entry */struct lb_cbmem_ref { u32 tag; u32 size;
cb_u64 cbmem_addr;};
/* Corresponds to LB_TAG_CBMEM_ENTRY */struct lb_cbmem_entry { u32 tag; u32 size;
cb_u64 address; u32 entry_size; u32 id;};
#define LB_FRAMEBUFFER_ORIENTATION_NORMAL 0#define LB_FRAMEBUFFER_ORIENTATION_BOTTOM_UP 1#define LB_FRAMEBUFFER_ORIENTATION_LEFT_UP 2#define LB_FRAMEBUFFER_ORIENTATION_RIGHT_UP 3
/* Describes framebuffer setup by coreboot */struct lb_framebuffer { u32 tag; u32 size;
cb_u64 physical_address; u32 x_resolution; u32 y_resolution; u32 bytes_per_line; u8 bits_per_pixel; u8 red_mask_pos; u8 red_mask_size; u8 green_mask_pos; u8 green_mask_size; u8 blue_mask_pos; u8 blue_mask_size; u8 reserved_mask_pos; u8 reserved_mask_size; u8 orientation;};
/* * True if the coreboot-provided data is large enough to hold information * on the linear framebuffer. False otherwise. */#define LB_FRAMEBUFFER_HAS_LFB(__fb) \ ((__fb)->size >= offsetofend(struct lb_framebuffer, reserved_mask_size))
/* * True if the coreboot-provided data is large enough to hold information * on the display orientation. False otherwise. */#define LB_FRAMEBUFFER_HAS_ORIENTATION(__fb) \ ((__fb)->size >= offsetofend(struct lb_framebuffer, orientation))
#endif /* _LINUX_COREBOOT_H */