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145/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* Copyright (C) IBM Corp. 2005
*
* Authors: Jimi Xenidis <jimix@watson.ibm.com>
*/
#ifndef _OF_DEVTREE_H
#define _OF_DEVTREE_H
#include <xen/types.h>
#include <public/xen.h>
enum {
OF_FAILURE = -1,
OF_SUCCESS = 0,
};
union of_pci_hi {
u32 word;
struct {
u32 opa_n: 1; /* relocatable */
u32 opa_p: 1; /* prefetchable */
u32 opa_t: 1; /* aliased */
u32 _opa_res: 3;
u32 opa: 2; /* space code */
u32 opa_b: 8; /* bus number */
u32 opa_d: 5; /* device number */
u32 opa_f: 3; /* function number */
u32 opa_r: 8; /* register number */
} bits;
};
struct of_pci_addr {
union of_pci_hi opa_hi;
u32 opa_mid;
u32 opa_lo;
};
struct of_pci_range32 {
struct of_pci_addr opr_addr;
u32 opr_phys;
u32 opr_size;
};
struct of_pci_range64 {
struct of_pci_addr opr_addr;
u32 opr_phys_hi;
u32 opr_phys_lo;
u32 opr_size_hi;
u32 opr_size_lo;
};
struct of_pci_addr_range64 {
struct of_pci_addr opr_addr;
u32 opr_size_hi;
u32 opr_size_lo;
};
struct reg_property32 {
u32 address;
u32 size;
};
typedef s32 ofdn_t;
#define OFD_ROOT 1
#define OFD_DUMP_NAMES 0x1
#define OFD_DUMP_VALUES 0x2
#define OFD_DUMP_ALL (OFD_DUMP_VALUES|OFD_DUMP_NAMES)
extern void *ofd_create(void *mem, size_t sz);
extern ofdn_t ofd_node_parent(void *mem, ofdn_t n);
extern ofdn_t ofd_node_peer(void *mem, ofdn_t n);
extern ofdn_t ofd_node_child(void *mem, ofdn_t p);
extern const char *ofd_node_path(void *mem, ofdn_t p);
extern int ofd_node_to_path(void *mem, ofdn_t p, void *buf, size_t sz);
extern ofdn_t ofd_node_child_create(void *mem, ofdn_t parent,
const char *path, size_t pathlen);
extern ofdn_t ofd_node_peer_create(void *mem, ofdn_t sibling,
const char *path, size_t pathlen);
extern ofdn_t ofd_node_find(void *mem, const char *devspec);
extern ofdn_t ofd_node_add(void *m, ofdn_t n, const char *path, size_t sz);
extern int ofd_node_prune(void *m, ofdn_t n);
extern int ofd_prune_path(void *m, const char *path);
extern ofdn_t ofd_node_io(void *mem, ofdn_t n);
extern ofdn_t ofd_nextprop(void *mem, ofdn_t n, const char *prev, char *name);
extern ofdn_t ofd_prop_find(void *mem, ofdn_t n, const char *name);
extern int ofd_getprop(void *mem, ofdn_t n, const char *name,
void *buf, size_t sz);
extern int ofd_getproplen(void *mem, ofdn_t n, const char *name);
extern int ofd_setprop(void *mem, ofdn_t n, const char *name,
const void *buf, size_t sz);
extern void ofd_prop_remove(void *mem, ofdn_t node, ofdn_t prop);
extern ofdn_t ofd_prop_add(void *mem, ofdn_t n, const char *name,
const void *buf, size_t sz);
extern ofdn_t ofd_io_create(void *m, ofdn_t node, u64 open);
extern u32 ofd_io_open(void *mem, ofdn_t n);
extern void ofd_io_close(void *mem, ofdn_t n);
typedef void (*walk_fn)(void *m, ofdn_t p, int arg);
extern void ofd_dump_props(void *m, ofdn_t p, int dump);
extern void ofd_walk(void *m, ofdn_t p, walk_fn fn, int arg);
/* Recursively look up #address_cells and #size_cells properties */
extern int ofd_getcells(void *mem, ofdn_t n,
u32 *addr_cells, u32 *size_cells);
extern size_t ofd_size(void *mem);
extern size_t ofd_space(void *mem);
extern void ofd_prop_print(const char *head, const char *path,
const char *name, const char *prop, size_t sz);
extern ofdn_t ofd_node_find_by_prop(void *mem, ofdn_t n, const char *name,
const void *val, size_t sz);
extern ofdn_t ofd_node_find_next(void *mem, ofdn_t n);
extern ofdn_t ofd_node_find_prev(void *mem, ofdn_t n);
extern void ofd_init(int (*write)(const char *, size_t len));
#endif /* _OF_DEVTREE_H */
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