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/* SPDX-License-Identifier: LGPL-2.1-or-later */
#pragma once
#include "efi.h"
struct devicetree_state {
EFI_PHYSICAL_ADDRESS addr;
size_t pages;
void *orig;
};
enum {
FDT_BEGIN_NODE = 1,
FDT_END_NODE = 2,
FDT_PROP = 3,
FDT_NOP = 4,
FDT_END = 9,
};
typedef struct FdtHeader {
uint32_t magic;
uint32_t total_size;
uint32_t off_dt_struct;
uint32_t off_dt_strings;
uint32_t off_mem_rsv_map;
uint32_t version;
uint32_t last_comp_version;
uint32_t boot_cpuid_phys;
uint32_t size_dt_strings;
uint32_t size_dt_struct;
} FdtHeader;
bool firmware_devicetree_exists(void);
const char* devicetree_get_compatible(const void *dtb);
EFI_STATUS devicetree_match(const void *uki_dtb, size_t uki_dtb_length);
EFI_STATUS devicetree_match_by_compatible(const void *uki_dtb, size_t uki_dtb_length, const char *compat);
EFI_STATUS devicetree_install_from_memory(
struct devicetree_state *state, const void *dtb_buffer, size_t dtb_length);
void devicetree_cleanup(struct devicetree_state *state);
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