include/asm-sparc64/prom.h

   1 #ifndef _SPARC64_PROM_H
   2 #define _SPARC64_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 SPARC64 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 interrupt_info {
  29         int     line;
  30         int     sense;          /* +ve/-ve logic, edge or level, etc. */
  31 };
  32
  33 struct property {
  34         char    *name;
  35         int     length;
  36         void    *value;
  37         struct property *next;
  38         unsigned long _flags;
  39         unsigned int unique_id;
  40 };
  41
  42 struct device_node {
  43         char    *name;
  44         char    *type;
  45         phandle node;
  46         phandle linux_phandle;
  47         int     n_intrs;
  48         struct  interrupt_info *intrs;
  49         char    *path_component_name;
  50         char    *full_name;
  51
  52         struct  property *properties;
  53         struct  property *deadprops; /* removed properties */
  54         struct  device_node *parent;
  55         struct  device_node *child;
  56         struct  device_node *sibling;
  57         struct  device_node *next;      /* next device of same type */
  58         struct  device_node *allnext;   /* next in list of all nodes */
  59         struct  proc_dir_entry *pde;    /* this node's proc directory */
  60         struct  kref kref;
  61         unsigned long _flags;
  62         void    *data;
  63         unsigned int unique_id;
  64 };
  65
  66 /* flag descriptions */
  67 #define OF_DYNAMIC 1 /* node and properties were allocated via kmalloc */
  68
  69 #define OF_IS_DYNAMIC(x) test_bit(OF_DYNAMIC, &x->_flags)
  70 #define OF_MARK_DYNAMIC(x) set_bit(OF_DYNAMIC, &x->_flags)
  71
  72 static inline void set_node_proc_entry(struct device_node *dn, struct proc_dir_entry *de)
  73 {
  74         dn->pde = de;
  75 }
  76
  77 extern struct device_node *of_find_node_by_name(struct device_node *from,
  78         const char *name);
  79 #define for_each_node_by_name(dn, name) \
  80         for (dn = of_find_node_by_name(NULL, name); dn; \
  81              dn = of_find_node_by_name(dn, name))
  82 extern struct device_node *of_find_node_by_type(struct device_node *from,
  83         const char *type);
  84 #define for_each_node_by_type(dn, type) \
  85         for (dn = of_find_node_by_type(NULL, type); dn; \
  86              dn = of_find_node_by_type(dn, type))
  87 extern struct device_node *of_find_compatible_node(struct device_node *from,
  88         const char *type, const char *compat);
  89 extern struct device_node *of_find_node_by_path(const char *path);
  90 extern struct device_node *of_find_node_by_phandle(phandle handle);
  91 extern struct device_node *of_get_parent(const struct device_node *node);
  92 extern struct device_node *of_get_next_child(const struct device_node *node,
  93                                              struct device_node *prev);
  94 extern struct property *of_find_property(struct device_node *np,
  95                                          const char *name,
  96                                          int *lenp);
  97 extern int of_device_is_compatible(struct device_node *device, const char *);
  98 extern void *of_get_property(struct device_node *node, const char *name,
  99                              int *lenp);
 100 extern int of_set_property(struct device_node *node, const char *name, void *val, int len);
 101 extern int of_getintprop_default(struct device_node *np,
 102                                  const char *name,
 103                                  int def);
 104
 105 extern void prom_build_devicetree(void);
 106
 107 #endif /* __KERNEL__ */
 108 #endif /* _SPARC64_PROM_H */