include/asm-sparc/prom.h

   1 #ifndef _SPARC_PROM_H
   2 #define _SPARC_PROM_H
   3 #ifdef __KERNEL__
   4
   5
   6 /*
   7  * Definitions for talking to the Open Firmware PROM on
   8  * Power Macintosh computers.
   9  *
  10  * Copyright (C) 1996-2005 Paul Mackerras.
  11  *
  12  * Updates for PPC64 by Peter Bergner & David Engebretsen, IBM Corp.
  13  * Updates for SPARC32 by David S. Miller
  14  *
  15  * This program is free software; you can redistribute it and/or
  16  * modify it under the terms of the GNU General Public License
  17  * as published by the Free Software Foundation; either version
  18  * 2 of the License, or (at your option) any later version.
  19  */
  20
  21 #include <linux/types.h>
  22 #include <linux/proc_fs.h>
  23 #include <asm/atomic.h>
  24
  25 typedef u32 phandle;
  26 typedef u32 ihandle;
  27
  28 struct property {
  29         char    *name;
  30         int     length;
  31         void    *value;
  32         struct property *next;
  33         unsigned long _flags;
  34         unsigned int unique_id;
  35 };
  36
  37 struct device_node {
  38         char    *name;
  39         char    *type;
  40         phandle node;
  41         char    *path_component_name;
  42         char    *full_name;
  43
  44         struct  property *properties;
  45         struct  property *deadprops; /* removed properties */
  46         struct  device_node *parent;
  47         struct  device_node *child;
  48         struct  device_node *sibling;
  49         struct  device_node *next;      /* next device of same type */
  50         struct  device_node *allnext;   /* next in list of all nodes */
  51         struct  proc_dir_entry *pde;    /* this node's proc directory */
  52         struct  kref kref;
  53         unsigned long _flags;
  54         void    *data;
  55         unsigned int unique_id;
  56 };
  57
  58 /* flag descriptions */
  59 #define OF_DYNAMIC 1 /* node and properties were allocated via kmalloc */
  60
  61 #define OF_IS_DYNAMIC(x) test_bit(OF_DYNAMIC, &x->_flags)
  62 #define OF_MARK_DYNAMIC(x) set_bit(OF_DYNAMIC, &x->_flags)
  63
  64 #define OF_BAD_ADDR     ((u64)-1)
  65
  66 static inline void set_node_proc_entry(struct device_node *dn, struct proc_dir_entry *de)
  67 {
  68         dn->pde = de;
  69 }
  70
  71 extern struct device_node *of_find_node_by_name(struct device_node *from,
  72         const char *name);
  73 #define for_each_node_by_name(dn, name) \
  74         for (dn = of_find_node_by_name(NULL, name); dn; \
  75              dn = of_find_node_by_name(dn, name))
  76 extern struct device_node *of_find_node_by_type(struct device_node *from,
  77         const char *type);
  78 #define for_each_node_by_type(dn, type) \
  79         for (dn = of_find_node_by_type(NULL, type); dn; \
  80              dn = of_find_node_by_type(dn, type))
  81 extern struct device_node *of_find_compatible_node(struct device_node *from,
  82         const char *type, const char *compat);
  83 extern struct device_node *of_find_node_by_path(const char *path);
  84 extern struct device_node *of_find_node_by_phandle(phandle handle);
  85 extern struct device_node *of_get_parent(const struct device_node *node);
  86 extern struct device_node *of_get_next_child(const struct device_node *node,
  87                                              struct device_node *prev);
  88 extern struct property *of_find_property(struct device_node *np,
  89                                          const char *name,
  90                                          int *lenp);
  91 extern int of_device_is_compatible(struct device_node *device, const char *);
  92 extern void *of_get_property(struct device_node *node, const char *name,
  93                              int *lenp);
  94 extern int of_set_property(struct device_node *node, const char *name, void *val, int len);
  95 extern int of_getintprop_default(struct device_node *np,
  96                                  const char *name,
  97                                  int def);
  98 extern int of_n_addr_cells(struct device_node *np);
  99 extern int of_n_size_cells(struct device_node *np);
 100
 101 extern void prom_build_devicetree(void);
 102
 103 #endif /* __KERNEL__ */
 104 #endif /* _SPARC_PROM_H */