LXR linux/arch/sparc/include/asm/prom.h

   1#ifndef _SPARC_PROM_H
   2#define _SPARC_PROM_H
   3#ifdef __KERNEL__
   4
   5/*
   6 * Definitions for talking to the Open Firmware PROM on
   7 * Power Macintosh computers.
   8 *
   9 * Copyright (C) 1996-2005 Paul Mackerras.
  10 *
  11 * Updates for PPC64 by Peter Bergner & David Engebretsen, IBM Corp.
  12 * Updates for SPARC by David S. Miller
  13 *
  14 * This program is free software; you can redistribute it and/or
  15 * modify it under the terms of the GNU General Public License
  16 * as published by the Free Software Foundation; either version
  17 * 2 of the License, or (at your option) any later version.
  18 */
  19#include <linux/types.h>
  20#include <linux/proc_fs.h>
  21#include <linux/mutex.h>
  22#include <asm/atomic.h>
  23
  24#define OF_ROOT_NODE_ADDR_CELLS_DEFAULT 2
  25#define OF_ROOT_NODE_SIZE_CELLS_DEFAULT 1
  26
  27#define of_compat_cmp(s1, s2, l)        strncmp((s1), (s2), (l))
  28#define of_prop_cmp(s1, s2)             strcasecmp((s1), (s2))
  29#define of_node_cmp(s1, s2)             strcmp((s1), (s2))
  30
  31typedef u32 phandle;
  32typedef u32 ihandle;
  33
  34struct property {
  35        char    *name;
  36        int     length;
  37        void    *value;
  38        struct property *next;
  39        unsigned long _flags;
  40        unsigned int unique_id;
  41};
  42
  43struct of_irq_controller;
  44struct device_node {
  45        const char      *name;
  46        const char      *type;
  47        phandle node;
  48        char    *path_component_name;
  49        char    *full_name;
  50
  51        struct  property *properties;
  52        struct  property *deadprops; /* removed properties */
  53        struct  device_node *parent;
  54        struct  device_node *child;
  55        struct  device_node *sibling;
  56        struct  device_node *next;      /* next device of same type */
  57        struct  device_node *allnext;   /* next in list of all nodes */
  58        struct  proc_dir_entry *pde;    /* this node's proc directory */
  59        struct  kref kref;
  60        unsigned long _flags;
  61        void    *data;
  62        unsigned int unique_id;
  63
  64        struct of_irq_controller *irq_trans;
  65};
  66
  67struct of_irq_controller {
  68        unsigned int    (*irq_build)(struct device_node *, unsigned int, void *);
  69        void            *data;
  70};
  71
  72#define OF_IS_DYNAMIC(x) test_bit(OF_DYNAMIC, &x->_flags)
  73#define OF_MARK_DYNAMIC(x) set_bit(OF_DYNAMIC, &x->_flags)
  74
  75extern struct device_node *of_find_node_by_cpuid(int cpuid);
  76extern int of_set_property(struct device_node *node, const char *name, void *val, int len);
  77extern struct mutex of_set_property_mutex;
  78extern int of_getintprop_default(struct device_node *np,
  79                                 const char *name,
  80                                 int def);
  81extern int of_find_in_proplist(const char *list, const char *match, int len);
  82#ifdef CONFIG_NUMA
  83extern int of_node_to_nid(struct device_node *dp);
  84#else
  85#define of_node_to_nid(dp)      (-1)
  86#endif
  87
  88extern void prom_build_devicetree(void);
  89extern void of_populate_present_mask(void);
  90extern void of_fill_in_cpu_data(void);
  91
  92/* Dummy ref counting routines - to be implemented later */
  93static inline struct device_node *of_node_get(struct device_node *node)
  94{
  95        return node;
  96}
  97static inline void of_node_put(struct device_node *node)
  98{
  99}
 100
 101/* These routines are here to provide compatibility with how powerpc
 102 * handles IRQ mapping for OF device nodes.  We precompute and permanently
 103 * register them in the of_device objects, whereas powerpc computes them
 104 * on request.
 105 */
 106extern unsigned int irq_of_parse_and_map(struct device_node *node, int index);
 107static inline void irq_dispose_mapping(unsigned int virq)
 108{
 109}
 110
 111/*
 112 * NB:  This is here while we transition from using asm/prom.h
 113 * to linux/of.h
 114 */
 115#include <linux/of.h>
 116
 117extern struct device_node *of_console_device;
 118extern char *of_console_path;
 119extern char *of_console_options;
 120
 121extern void (*prom_build_more)(struct device_node *dp, struct device_node ***nextp);
 122extern char *build_full_name(struct device_node *dp);
 123
 124#endif /* __KERNEL__ */
 125#endif /* _SPARC_PROM_H */
 126