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/* $OpenBSD: fdt.h,v 1.6 2020/07/18 09:44:59 kettenis Exp $ */
/*
* Copyright (c) 2009 Dariusz Swiderski <sfires@sfires.net>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
struct fdt_head {
u_int32_t fh_magic;
u_int32_t fh_size;
u_int32_t fh_struct_off;
u_int32_t fh_strings_off;
u_int32_t fh_reserve_off;
u_int32_t fh_version;
u_int32_t fh_comp_ver; /* last compatible version */
u_int32_t fh_boot_cpu_id; /* fh_version >=2 */
u_int32_t fh_strings_size; /* fh_version >=3 */
u_int32_t fh_struct_size; /* fh_version >=17 */
};
struct fdt {
struct fdt_head *header;
char *tree;
char *strings;
char *memory;
char *end;
int version;
int strings_size;
int struct_size;
};
struct fdt_reg {
uint64_t addr;
uint64_t size;
};
#define FDT_MAGIC 0xd00dfeed
#define FDT_NODE_BEGIN 0x01
#define FDT_NODE_END 0x02
#define FDT_PROPERTY 0x03
#define FDT_NOP 0x04
#define FDT_END 0x09
#define FDT_CODE_VERSION 0x11
int fdt_init(void *);
void fdt_finalize(void);
size_t fdt_get_size(void *);
void *fdt_next_node(void *);
void *fdt_child_node(void *);
char *fdt_node_name(void *);
void *fdt_find_node(char *);
int fdt_node_property(void *, char *, char **);
int fdt_node_set_property(void *, char *, void *, int);
int fdt_node_add_property(void *, char *, void *, int);
void *fdt_parent_node(void *);
void *fdt_find_phandle(uint32_t);
int fdt_get_reg(void *, int, struct fdt_reg *);
int fdt_is_compatible(void *, const char *);
#ifdef DEBUG
void *fdt_print_property(void *, int);
void fdt_print_node(void *, int);
void fdt_print_tree(void);
#endif
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