target/linux/olpc/files-2.6.23/include/asm-i386/prom.h

   1 #ifndef _I386_PROM_H
   2 #define _I386_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  * Updates for i386/OLPC by Andres Salomon
  15  *
  16  * This program is free software; you can redistribute it and/or
  17  * modify it under the terms of the GNU General Public License
  18  * as published by the Free Software Foundation; either version
  19  * 2 of the License, or (at your option) any later version.
  20  */
  21
  22 #include <linux/types.h>
  23 #include <linux/proc_fs.h>
  24 #include <asm/atomic.h>
  25
  26 typedef u32 phandle;
  27 typedef u32 ihandle;
  28
  29 struct property {
  30         char    *name;
  31         int     length;
  32         void    *value;
  33         struct property *next;
  34 };
  35
  36 struct device_node {
  37         const char      *name;
  38         const char      *type;
  39         phandle node;
  40 //        phandle linux_phandle;
  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 };
  56
  57 /* flag descriptions */
  58 #define OF_DYNAMIC 1 /* node and properties were allocated via kmalloc */
  59
  60 #define OF_IS_DYNAMIC(x) test_bit(OF_DYNAMIC, &x->_flags)
  61 #define OF_MARK_DYNAMIC(x) set_bit(OF_DYNAMIC, &x->_flags)
  62
  63 #define OF_BAD_ADDR     ((u64)-1)
  64
  65 static inline void set_node_proc_entry(struct device_node *dn, struct proc_dir_entry *de)
  66 {
  67         dn->pde = de;
  68 }
  69
  70 extern struct device_node *of_find_node_by_name(struct device_node *from,
  71         const char *name);
  72 #define for_each_node_by_name(dn, name) \
  73         for (dn = of_find_node_by_name(NULL, name); dn; \
  74              dn = of_find_node_by_name(dn, name))
  75 extern struct device_node *of_find_node_by_type(struct device_node *from,
  76         const char *type);
  77 #define for_each_node_by_type(dn, type) \
  78         for (dn = of_find_node_by_type(NULL, type); dn; \
  79              dn = of_find_node_by_type(dn, type))
  80 extern struct device_node *of_find_compatible_node(struct device_node *from,
  81         const char *type, const char *compat);
  82 extern struct device_node *of_find_node_by_path(const char *path);
  83 extern struct device_node *of_find_node_by_phandle(phandle handle);
  84 extern struct device_node *of_get_parent(const struct device_node *node);
  85 extern struct device_node *of_get_next_child(const struct device_node *node,
  86                                              struct device_node *prev);
  87 extern struct property *of_find_property(const struct device_node *np,
  88                                          const char *name,
  89                                          int *lenp);
  90 //extern struct device_node *of_node_get(struct device_node *node);
  91 //extern void of_node_put(struct device_node *node);
  92 extern int of_device_is_compatible(const struct device_node *device,
  93                                    const char *);
  94 extern const void *of_get_property(const struct device_node *node,
  95                              const char *name,
  96                              int *lenp);
  97 #define get_property(node,name,lenp) of_get_property(node,name,lenp)
  98 extern int of_set_property(struct device_node *node, const char *name, void *val, int len);
  99 extern int of_getintprop_default(struct device_node *np,
 100                                  const char *name,
 101                                  int def);
 102 extern int of_n_addr_cells(struct device_node *np);
 103 extern int of_n_size_cells(struct device_node *np);
 104
 105 extern void prom_build_devicetree(void);
 106
 107 #endif /* __KERNEL__ */
 108 #endif