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/* $Id$
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 1992 - 1997, 2000-2001 Silicon Graphics, Inc. All rights reserved.
*/
#ifndef _ASM_IA64_SN_HCL_H
#define _ASM_IA64_SN_HCL_H
#include <asm/sn/sgi.h>
#include <asm/sn/invent.h>
#include <linux/devfs_fs_kernel.h>
extern devfs_handle_t hcl_handle; /* HCL driver */
extern devfs_handle_t hwgraph_root;
extern devfs_handle_t linux_busnum;
typedef long labelcl_info_place_t;
typedef long arbitrary_info_t;
typedef long arb_info_desc_t;
/* Support for INVENTORY */
struct inventory_s;
struct invplace_s;
/*
* Reserve room in every vertex for 2 pieces of fast access indexed information
* Note that we do not save a pointer to the bdevsw or cdevsw[] tables anymore.
*/
#define HWGRAPH_NUM_INDEX_INFO 2 /* MAX Entries */
#define HWGRAPH_CONNECTPT 0 /* connect point (aprent) */
#define HWGRAPH_FASTINFO 1 /* callee's private handle */
/*
* Reserved edge_place_t values, used as the "place" parameter to edge_get_next.
* Every vertex in the hwgraph has up to 2 *implicit* edges. There is an implicit
* edge called "." that points to the current vertex. There is an implicit edge
* called ".." that points to the vertex' connect point.
*/
#define EDGE_PLACE_WANT_CURRENT 0 /* "." */
#define EDGE_PLACE_WANT_CONNECTPT 1 /* ".." */
#define EDGE_PLACE_WANT_REAL_EDGES 2 /* Get the first real edge */
#define HWGRAPH_RESERVED_PLACES 2
/*
* Special pre-defined edge labels.
*/
#define HWGRAPH_EDGELBL_HW "hw"
#define HWGRAPH_EDGELBL_DOT "."
#define HWGRAPH_EDGELBL_DOTDOT ".."
#define graph_edge_place_t uint
/*
* External declarations of EXPORTED SYMBOLS in hcl.c
*/
extern devfs_handle_t hwgraph_register(devfs_handle_t, const char *,
unsigned int, unsigned int, unsigned int, unsigned int,
umode_t, uid_t, gid_t, struct file_operations *, void *);
extern int hwgraph_mk_symlink(devfs_handle_t, const char *, unsigned int,
unsigned int, const char *, unsigned int, devfs_handle_t *, void *);
extern int hwgraph_vertex_destroy(devfs_handle_t);
extern int hwgraph_edge_add(devfs_handle_t, devfs_handle_t, char *);
extern int hwgraph_edge_get(devfs_handle_t, char *, devfs_handle_t *);
extern arbitrary_info_t hwgraph_fastinfo_get(devfs_handle_t);
extern void hwgraph_fastinfo_set(devfs_handle_t, arbitrary_info_t );
extern devfs_handle_t hwgraph_mk_dir(devfs_handle_t, const char *, unsigned int, void *);
extern int hwgraph_connectpt_set(devfs_handle_t, devfs_handle_t);
extern devfs_handle_t hwgraph_connectpt_get(devfs_handle_t);
extern int hwgraph_edge_get_next(devfs_handle_t, char *, devfs_handle_t *, uint *);
extern graph_error_t hwgraph_edge_remove(devfs_handle_t, char *, devfs_handle_t *);
extern graph_error_t hwgraph_traverse(devfs_handle_t, char *, devfs_handle_t *);
extern int hwgraph_vertex_get_next(devfs_handle_t *, devfs_handle_t *);
extern int hwgraph_inventory_get_next(devfs_handle_t, invplace_t *,
inventory_t **);
extern int hwgraph_inventory_add(devfs_handle_t, int, int, major_t, minor_t, int);
extern int hwgraph_inventory_remove(devfs_handle_t, int, int, major_t, minor_t, int);
extern int hwgraph_controller_num_get(devfs_handle_t);
extern void hwgraph_controller_num_set(devfs_handle_t, int);
extern int hwgraph_path_ad(devfs_handle_t, char *, devfs_handle_t *);
extern devfs_handle_t hwgraph_path_to_vertex(char *);
extern devfs_handle_t hwgraph_path_to_dev(char *);
extern devfs_handle_t hwgraph_block_device_get(devfs_handle_t);
extern devfs_handle_t hwgraph_char_device_get(devfs_handle_t);
extern graph_error_t hwgraph_char_device_add(devfs_handle_t, char *, char *, devfs_handle_t *);
extern int hwgraph_path_add(devfs_handle_t, char *, devfs_handle_t *);
extern int hwgraph_info_add_LBL(devfs_handle_t, char *, arbitrary_info_t);
extern int hwgraph_info_get_LBL(devfs_handle_t, char *, arbitrary_info_t *);
extern int hwgraph_info_replace_LBL(devfs_handle_t, char *, arbitrary_info_t,
arbitrary_info_t *);
extern int hwgraph_info_get_exported_LBL(devfs_handle_t, char *, int *, arbitrary_info_t *);
extern int hwgraph_info_get_next_LBL(devfs_handle_t, char *, arbitrary_info_t *,
labelcl_info_place_t *);
extern int hwgraph_path_lookup(devfs_handle_t, char *, devfs_handle_t *, char **);
extern int hwgraph_info_export_LBL(devfs_handle_t, char *, int);
extern int hwgraph_info_unexport_LBL(devfs_handle_t, char *);
extern int hwgraph_info_remove_LBL(devfs_handle_t, char *, arbitrary_info_t *);
extern char * vertex_to_name(devfs_handle_t, char *, uint);
extern graph_error_t hwgraph_vertex_unref(devfs_handle_t);
#endif /* _ASM_IA64_SN_HCL_H */
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