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-rw-r--r--include/linux/of.h103
1 files changed, 103 insertions, 0 deletions
diff --git a/include/linux/of.h b/include/linux/of.h
index 7be2d1043c1..e7facd8fbce 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -17,14 +17,117 @@
*/
#include <linux/types.h>
#include <linux/bitops.h>
+#include <linux/kref.h>
#include <linux/mod_devicetable.h>
+typedef u32 phandle;
+typedef u32 ihandle;
+
+struct property {
+ char *name;
+ int length;
+ void *value;
+ struct property *next;
+ unsigned long _flags;
+ unsigned int unique_id;
+};
+
+#if defined(CONFIG_SPARC)
+struct of_irq_controller;
+#endif
+
+struct device_node {
+ const char *name;
+ const char *type;
+ phandle node;
+#if !defined(CONFIG_SPARC)
+ phandle linux_phandle;
+#endif
+ char *full_name;
+
+ struct property *properties;
+ struct property *deadprops; /* removed properties */
+ struct device_node *parent;
+ struct device_node *child;
+ struct device_node *sibling;
+ struct device_node *next; /* next device of same type */
+ struct device_node *allnext; /* next in list of all nodes */
+ struct proc_dir_entry *pde; /* this node's proc directory */
+ struct kref kref;
+ unsigned long _flags;
+ void *data;
+#if defined(CONFIG_SPARC)
+ char *path_component_name;
+ unsigned int unique_id;
+ struct of_irq_controller *irq_trans;
+#endif
+};
+
+static inline int of_node_check_flag(struct device_node *n, unsigned long flag)
+{
+ return test_bit(flag, &n->_flags);
+}
+
+static inline void of_node_set_flag(struct device_node *n, unsigned long flag)
+{
+ set_bit(flag, &n->_flags);
+}
+
+static inline void
+set_node_proc_entry(struct device_node *dn, struct proc_dir_entry *de)
+{
+ dn->pde = de;
+}
+
+extern struct device_node *of_find_all_nodes(struct device_node *prev);
+
+#if defined(CONFIG_SPARC)
+/* Dummy ref counting routines - to be implemented later */
+static inline struct device_node *of_node_get(struct device_node *node)
+{
+ return node;
+}
+static inline void of_node_put(struct device_node *node)
+{
+}
+
+#else
+extern struct device_node *of_node_get(struct device_node *node);
+extern void of_node_put(struct device_node *node);
+#endif
+
+/*
+ * OF address retreival & translation
+ */
+
+/* Helper to read a big number; size is in cells (not bytes) */
+static inline u64 of_read_number(const u32 *cell, int size)
+{
+ u64 r = 0;
+ while (size--)
+ r = (r << 32) | *(cell++);
+ return r;
+}
+
+/* Like of_read_number, but we want an unsigned long result */
+#ifdef CONFIG_PPC32
+static inline unsigned long of_read_ulong(const u32 *cell, int size)
+{
+ return cell[size-1];
+}
+#else
+#define of_read_ulong(cell, size) of_read_number(cell, size)
+#endif
+
#include <asm/prom.h>
/* flag descriptions */
#define OF_DYNAMIC 1 /* node and properties were allocated via kmalloc */
#define OF_DETACHED 2 /* node has been detached from the device tree */
+#define OF_IS_DYNAMIC(x) test_bit(OF_DYNAMIC, &x->_flags)
+#define OF_MARK_DYNAMIC(x) set_bit(OF_DYNAMIC, &x->_flags)
+
#define OF_BAD_ADDR ((u64)-1)
extern struct device_node *of_find_node_by_name(struct device_node *from,