diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/coreboot.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/coreboot.h b/include/linux/coreboot.h index 885da106fee3..5d40ca7a1d89 100644 --- a/include/linux/coreboot.h +++ b/include/linux/coreboot.h @@ -47,6 +47,11 @@ struct lb_cbmem_entry { 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; @@ -65,6 +70,7 @@ struct lb_framebuffer { u8 blue_mask_size; u8 reserved_mask_pos; u8 reserved_mask_size; + u8 orientation; }; /* @@ -74,4 +80,11 @@ struct lb_framebuffer { #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 */ |