dtb.h

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#ifndef __DTB_H__
#define __DTB_H__
 
#include "littleboot.h"
 
uint16_t swizzle16(uint16_t from);
uint64_t swizzle64(uint64_t from);
uint32_t swizzle(uint32_t from);
 
typedef struct _fdt_prop_{
    uint32_t tag;
    uint32_t len;
    uint32_t nameoff;
    uint8_t value[];
}fdt_property_t;
 
uint32_t * dtb_find_node_prefix(const char * name);
uint32_t* find_node_int(const char* name, int (*comp)(const char*, const char*));
uint32_t * node_find_property_int(uint32_t * node, char * strings, const char * property, uint32_t ** out);
uint32_t * dtb_node_find_property(uint32_t * node, const char * property);
uint32_t* find_subnode(uint32_t* node, char* strings, const char* name, uint32_t** node_out, 
int (*cmp)(const char* a, const char* b));
 
/*
 * LBDTBGetMemorySize -- gets memory size from
 * device tree blob
 * @param memaddr -- address where to put the physical
 * start address
 * @param physSize -- total size of the physical memory
 */
void LBDTBGetMemorySize(uint64_t *memaddr, size_t *physSize);
 
/*
 * LBDeviceTreeInitialize -- initialize device tree
 * parser
 * @param dtb -- Pointer to Device tree blob
 */
extern void LBDeviceTreeInitialize(uint64_t dtb);
 
/*
 * LBDTBGetTotalSize -- returns the
 * total size of FDT
 */
extern uint32_t LBDTBGetTotalSize();
 
#endif