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/*
* Creation Date: <2002/10/03 21:07:27 samuel>
* Time-stamp: <2003/10/22 22:45:26 samuel>
*
* <prom.h>
*
* device tree interface
*
* Copyright (C) 2002, 2003 Samuel Rydh (samuel@ibrium.se)
*
* This program 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
*
*/
#ifndef _H_PROM
#define _H_PROM
/* Note 1: MOL uses -1 as the invalid phandle while OpenFirmware uses 0 as the
* invalid phandle (it is also the root node).
*
* Note 2: phandles might be negative. For instance, phandles originating from
* a real Open Firmware tree might look like 0xff123000 (a ROM address)...
*/
typedef enum { kGetRootPhandle=0 } mol_phandle_t; /* must promote to int */
extern int prom_close( void );
extern mol_phandle_t prom_peer( mol_phandle_t phandle );
extern mol_phandle_t prom_child( mol_phandle_t phandle );
extern mol_phandle_t prom_parent( mol_phandle_t phandle );
extern int prom_package_to_path( mol_phandle_t phandle, char *buf, long buflen );
extern int prom_get_prop_len( mol_phandle_t phandle, const char *name );
extern int prom_get_prop( mol_phandle_t phandle, const char *name, char *buf, long buflen );
extern int prom_get_prop_by_path( const char *path, const char *name, char *buf, long buflen );
extern int prom_next_prop( mol_phandle_t phandle, const char *prev, char *buf );
extern int prom_set_prop( mol_phandle_t phandle, const char *name, char *buf, long buflen );
extern mol_phandle_t prom_create_node( const char *path );
extern mol_phandle_t prom_find_device( const char *path );
extern mol_phandle_t prom_find_device_type( const char *type, int index );
extern int prom_change_phandle( mol_phandle_t old_ph, mol_phandle_t new_ph );
#endif /* _H_PROM */
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