diff options
author | Bin Meng <bmeng.cn@gmail.com> | 2018-06-12 08:36:21 -0700 |
---|---|---|
committer | Bin Meng <bmeng.cn@gmail.com> | 2018-06-17 21:16:04 +0800 |
commit | d1fe9927465c3df03c7c0c8f62bd8468d24f66bc (patch) | |
tree | 824da8a88dd2c1f993bc82564fa395341a0a510b /include/efi.h | |
parent | 252d41f1ae59974c8a9120c994c0688fb9cec2b7 (diff) |
efi: stub: Pass EFI GOP information to U-Boot payload
If UEFI BIOS has the graphics output protocol (GOP), let's pass its
information to U-Boot payload so that U-Boot can utilize it (eg:
an EFI framebuffer driver).
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'include/efi.h')
-rw-r--r-- | include/efi.h | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/include/efi.h b/include/efi.h index e30a3c51c6..2448dde3fe 100644 --- a/include/efi.h +++ b/include/efi.h @@ -241,6 +241,7 @@ struct efi_open_protocol_info_entry { enum efi_entry_t { EFIET_END, /* Signals this is the last (empty) entry */ EFIET_MEMORY_MAP, + EFIET_GOP_MODE, /* Number of entries */ EFIET_MEMORY_COUNT, @@ -297,6 +298,40 @@ struct efi_entry_memmap { struct efi_mem_desc desc[]; }; +/** + * struct efi_entry_gopmode - a GOP mode table passed to U-Boot + * + * @fb_base: EFI's framebuffer base address + * @fb_size: EFI's framebuffer size + * @info_size: GOP mode info structure size + * @info: Start address of the GOP mode info structure + */ +struct efi_entry_gopmode { + efi_physical_addr_t fb_base; + /* + * Not like the ones in 'struct efi_gop_mode' which are 'unsigned + * long', @fb_size and @info_size have to be 'u64' here. As the EFI + * stub codes may have different bit size from the U-Boot payload, + * using 'long' will cause mismatch between the producer (stub) and + * the consumer (payload). + */ + u64 fb_size; + u64 info_size; + /* + * We cannot directly use 'struct efi_gop_mode_info info[]' here as + * it causes compiler to complain: array type has incomplete element + * type 'struct efi_gop_mode_info'. + */ + struct /* efi_gop_mode_info */ { + u32 version; + u32 width; + u32 height; + u32 pixel_format; + u32 pixel_bitmask[4]; + u32 pixels_per_scanline; + } info[]; +}; + static inline struct efi_mem_desc *efi_get_next_mem_desc( struct efi_entry_memmap *map, struct efi_mem_desc *desc) { |