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 };
  39
  40 struct device_node {
  41         char    *name;
  42         char    *type;
  43         phandle node;
  44         phandle linux_phandle;
  45         int     n_intrs;
  46         struct  interrupt_info *intrs;
  47         char    *path_component_name;
  48         char    *full_name;
  49
  50         struct  property *properties;
  51         struct  property *deadprops; /* removed properties */
  52         struct  device_node *parent;
  53         struct  device_node *child;
  54         struct  device_node *sibling;
  55         struct  device_node *next;      /* next device of same type */
  56         struct  device_node *allnext;   /* next in list of all nodes */
  57         struct  proc_dir_entry *pde;    /* this node's proc directory */
  58         struct  kref kref;
  59         unsigned long _flags;
  60         void    *data;
  61 };
  62
  63 static inline void set_node_proc_entry(struct device_node *dn, struct proc_dir_entry *de)
  64 {
  65         dn->pde = de;
  66 }
  67
  68 extern struct device_node *of_find_node_by_name(struct device_node *from,
  69         const char *name);
  70 #define for_each_node_by_name(dn, name) \
  71         for (dn = of_find_node_by_name(NULL, name); dn; \
  72              dn = of_find_node_by_name(dn, name))
  73 extern struct device_node *of_find_node_by_type(struct device_node *from,
  74         const char *type);
  75 #define for_each_node_by_type(dn, type) \
  76         for (dn = of_find_node_by_type(NULL, type); dn; \
  77              dn = of_find_node_by_type(dn, type))
  78 extern struct device_node *of_find_node_by_path(const char *path);
  79 extern struct device_node *of_get_parent(const struct device_node *node);
  80 extern struct device_node *of_get_next_child(const struct device_node *node,
  81                                              struct device_node *prev);
  82 extern struct property *of_find_property(struct device_node *np,
  83                                          const char *name,
  84                                          int *lenp);
  85
  86 extern void prom_build_devicetree(void);
  87
  88 #endif /* __KERNEL__ */
  89 #endif /* _SPARC64_PROM_H */