/*
** Copyright 2004, Axel Dörfler, axeld@pinc-software.de. All rights reserved.
** Distributed under the terms of the Haiku License.
*/
#ifndef _KERNEL_DEVICE_MANAGER_H
#define _KERNEL_DEVICE_MANAGER_H


#include <SupportDefs.h>
#include <device_manager.h>


// info about a PnP node
typedef struct pnp_node_info {
	struct pnp_node_info *prev, *next;
	struct pnp_node_info *children_prev, *children_next;
	struct pnp_node_info *notify_prev, *notify_next;
	struct pnp_node_info *parent;
	struct pnp_node_info *children;
	int ref_count;				// reference count; see registration.c
	pnp_driver_info *driver;
	void *cookie;
	bool registered;			// true, if device is officially existent
	bool init_finished;			// true, if publish_device has been completed
								// (sync with loader_lock)
	bool blocked_by_rescan;		// true, if device is blocked because of rescan
	bool verifying;				// true, if driver is being verified by rescan
	bool redetected;			// true, if driver was redetected during rescan
	int num_waiting_hooks;		// number of waiting hook calls
	sem_id hook_sem;			// sem for waiting hook calls
	int load_block_count;		// load-block nest count
	int num_blocked_loads;		// number of waiting load calls
	sem_id load_block_sem;		// sem for waiting load calls
	int load_count;				// # of finished load_driver() calls
	int loading;				// # of active (un)load_driver() calls
	uint rescan_depth;			// > 0 if scanning is active
	struct pnp_node_attr_info *attributes;	// list of attributes
	uint num_io_resources;		// number of I/O resources
	io_resource_handle *io_resources; // array of I/O resource (NULL-terminated)
	int defer_probing; 			// > 0 defer probing for consumers of children
	bool automatically_loaded;	// loaded automatically because PNP_DRIVER_ALWAYS_LOADED
	struct pnp_node_info *unprobed_children; // list of un-probed children
	struct pnp_node_info *unprobed_prev, *unprobed_next; // link for unprobed_children
} pnp_node_info;


struct kernel_args;

#ifdef __cplusplus
extern "C" {
#endif

extern status_t device_manager_init(struct kernel_args *args);

#ifdef __cplusplus
}
#endif

#endif	/* _KRENEL_DEVICE_MANAGER_H */