60 lines
2.1 KiB
C
60 lines
2.1 KiB
C
/*
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** Copyright 2004, Axel Dörfler, axeld@pinc-software.de. All rights reserved.
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** Distributed under the terms of the Haiku License.
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*/
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#ifndef _KERNEL_DEVICE_MANAGER_H
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#define _KERNEL_DEVICE_MANAGER_H
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#include <SupportDefs.h>
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#include <device_manager.h>
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// info about a PnP node
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typedef struct pnp_node_info {
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struct pnp_node_info *prev, *next;
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struct pnp_node_info *children_prev, *children_next;
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struct pnp_node_info *notify_prev, *notify_next;
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struct pnp_node_info *parent;
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struct pnp_node_info *children;
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int ref_count; // reference count; see registration.c
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pnp_driver_info *driver;
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void *cookie;
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bool registered; // true, if device is officially existent
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bool init_finished; // true, if publish_device has been completed
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// (sync with loader_lock)
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bool blocked_by_rescan; // true, if device is blocked because of rescan
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bool verifying; // true, if driver is being verified by rescan
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bool redetected; // true, if driver was redetected during rescan
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int num_waiting_hooks; // number of waiting hook calls
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sem_id hook_sem; // sem for waiting hook calls
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int load_block_count; // load-block nest count
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int num_blocked_loads; // number of waiting load calls
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sem_id load_block_sem; // sem for waiting load calls
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int load_count; // # of finished load_driver() calls
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int loading; // # of active (un)load_driver() calls
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uint rescan_depth; // > 0 if scanning is active
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struct pnp_node_attr_info *attributes; // list of attributes
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uint num_io_resources; // number of I/O resources
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io_resource_handle *io_resources; // array of I/O resource (NULL-terminated)
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int defer_probing; // > 0 defer probing for consumers of children
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bool automatically_loaded; // loaded automatically because PNP_DRIVER_ALWAYS_LOADED
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struct pnp_node_info *unprobed_children; // list of un-probed children
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struct pnp_node_info *unprobed_prev, *unprobed_next; // link for unprobed_children
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} pnp_node_info;
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struct kernel_args;
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#ifdef __cplusplus
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extern "C" {
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#endif
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extern status_t device_manager_init(struct kernel_args *args);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _KRENEL_DEVICE_MANAGER_H */
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