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cf44bbc26c
The idea is to fully construct the device register and interrupt values into these of_device objects, and convert all of SBUS, EBUS, ISA drivers to use this new stuff. Much ideas and code taken from Ben H.'s powerpc work. Signed-off-by: David S. Miller <davem@davemloft.net>
113 lines
3.4 KiB
C
113 lines
3.4 KiB
C
#ifndef _SPARC_PROM_H
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#define _SPARC_PROM_H
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#ifdef __KERNEL__
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/*
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* Definitions for talking to the Open Firmware PROM on
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* Power Macintosh computers.
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*
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* Copyright (C) 1996-2005 Paul Mackerras.
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*
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* Updates for PPC64 by Peter Bergner & David Engebretsen, IBM Corp.
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* Updates for SPARC32 by David S. Miller
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#include <linux/types.h>
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#include <linux/proc_fs.h>
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#include <asm/atomic.h>
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typedef u32 phandle;
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typedef u32 ihandle;
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struct interrupt_info {
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int line;
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int sense; /* +ve/-ve logic, edge or level, etc. */
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};
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struct property {
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char *name;
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int length;
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void *value;
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struct property *next;
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unsigned long _flags;
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unsigned int unique_id;
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};
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struct device_node {
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char *name;
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char *type;
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phandle node;
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phandle linux_phandle;
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int n_intrs;
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struct interrupt_info *intrs;
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char *path_component_name;
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char *full_name;
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struct property *properties;
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struct property *deadprops; /* removed properties */
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struct device_node *parent;
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struct device_node *child;
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struct device_node *sibling;
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struct device_node *next; /* next device of same type */
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struct device_node *allnext; /* next in list of all nodes */
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struct proc_dir_entry *pde; /* this node's proc directory */
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struct kref kref;
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unsigned long _flags;
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void *data;
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unsigned int unique_id;
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};
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/* flag descriptions */
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#define OF_DYNAMIC 1 /* node and properties were allocated via kmalloc */
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#define OF_IS_DYNAMIC(x) test_bit(OF_DYNAMIC, &x->_flags)
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#define OF_MARK_DYNAMIC(x) set_bit(OF_DYNAMIC, &x->_flags)
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#define OF_BAD_ADDR ((u64)-1)
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static inline void set_node_proc_entry(struct device_node *dn, struct proc_dir_entry *de)
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{
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dn->pde = de;
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}
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extern struct device_node *of_find_node_by_name(struct device_node *from,
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const char *name);
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#define for_each_node_by_name(dn, name) \
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for (dn = of_find_node_by_name(NULL, name); dn; \
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dn = of_find_node_by_name(dn, name))
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extern struct device_node *of_find_node_by_type(struct device_node *from,
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const char *type);
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#define for_each_node_by_type(dn, type) \
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for (dn = of_find_node_by_type(NULL, type); dn; \
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dn = of_find_node_by_type(dn, type))
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extern struct device_node *of_find_compatible_node(struct device_node *from,
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const char *type, const char *compat);
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extern struct device_node *of_find_node_by_path(const char *path);
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extern struct device_node *of_find_node_by_phandle(phandle handle);
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extern struct device_node *of_get_parent(const struct device_node *node);
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extern struct device_node *of_get_next_child(const struct device_node *node,
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struct device_node *prev);
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extern struct property *of_find_property(struct device_node *np,
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const char *name,
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int *lenp);
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extern int of_device_is_compatible(struct device_node *device, const char *);
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extern void *of_get_property(struct device_node *node, const char *name,
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int *lenp);
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extern int of_set_property(struct device_node *node, const char *name, void *val, int len);
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extern int of_getintprop_default(struct device_node *np,
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const char *name,
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int def);
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extern int of_n_addr_cells(struct device_node *np);
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extern int of_n_size_cells(struct device_node *np);
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extern void prom_build_devicetree(void);
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#endif /* __KERNEL__ */
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#endif /* _SPARC_PROM_H */
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