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Use EDID on EFI.

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* grub-core/kern/efi/efi.c (grub_efi_get_variable): New argument
	datasize_out.
	* grub-core/video/efi_gop.c (check_protocol): Check that GOP has usable
	modes. Set gop_handle.
	(grub_video_gop_get_edid): New function.
	(grub_gop_get_preferred_mode): Likewise.
	(grub_video_gop_setup): Use grub_gop_get_preferred_mode.
	(grub_video_efi_gop_adapter): Set .get_edid.
	* include/grub/efi/edid.h: New file.
	* include/grub/efi/efi.h (grub_efi_get_variable): Update proto.

	Also-By: Vladimir Serbinenko <phcoder@gmail.com>
This commit is contained in:
Matthew Garrett 2012-03-04 00:48:21 +01:00 • committed by Vladimir 'phcoder' Serbinenko
parent 32107ec02a
commit 3935dde2f2
5 changed files with 200 additions and 5 deletions
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54
include/grub/efi/edid.h Normal file
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@ -0,0 +1,54 @@
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2012 Free Software Foundation, Inc.
*
* GRUB is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* GRUB is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef GRUB_EFI_EDID_HEADER
#define GRUB_EFI_EDID_HEADER 1
/* Based on UEFI specification. */
#define GRUB_EFI_EDID_ACTIVE_GUID \
{ 0xbd8c1056, 0x9f36, 0x44ec, { 0x92, 0xa8, 0xa6, 0x33, 0x7f, 0x81, 0x79, 0x86 }}
#define GRUB_EFI_EDID_DISCOVERED_GUID \
{0x1c0c34f6,0xd380,0x41fa, {0xa0,0x49,0x8a,0xd0,0x6c,0x1a,0x66,0xaa}}
#define GRUB_EFI_EDID_OVERRIDE_GUID \
{0x48ecb431,0xfb72,0x45c0, {0xa9,0x22,0xf4,0x58,0xfe,0x4,0xb,0xd5}}
struct grub_efi_edid_override;
typedef grub_efi_status_t
(*grub_efi_edid_override_get_edid) (struct grub_efi_edid_override *this,
grub_efi_handle_t *childhandle,
grub_efi_uint32_t *attributes,
grub_efi_uintn_t *edidsize,
grub_efi_uint8_t *edid);
struct grub_efi_edid_override {
grub_efi_edid_override_get_edid get_edid;
};
typedef struct grub_efi_edid_override grub_efi_edid_override_t;
struct grub_efi_active_edid
{
grub_uint32_t size_of_edid;
grub_uint8_t *edid;
};
#endif

3
include/grub/efi/efi.h
View file

@ -62,7 +62,8 @@ grub_err_t EXPORT_FUNC (grub_efi_set_virtual_address_map) (grub_efi_uintn_t memo
grub_efi_uint32_t descriptor_version,
grub_efi_memory_descriptor_t *virtual_map);
void *EXPORT_FUNC (grub_efi_get_variable) (const char *variable,
const grub_efi_guid_t *guid);
const grub_efi_guid_t *guid,
grub_size_t *datasize_out);
int
EXPORT_FUNC (grub_efi_compare_device_paths) (const grub_efi_device_path_t *dp1,
const grub_efi_device_path_t *dp2);