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-rw-r--r--drivers/staging/tidspbridge/include/dspbridge/ntfy.h217
1 files changed, 0 insertions, 217 deletions
diff --git a/drivers/staging/tidspbridge/include/dspbridge/ntfy.h b/drivers/staging/tidspbridge/include/dspbridge/ntfy.h
deleted file mode 100644
index 6bb94d20e99a..000000000000
--- a/drivers/staging/tidspbridge/include/dspbridge/ntfy.h
+++ /dev/null
@@ -1,217 +0,0 @@
-/*
- * ntfy.h
- *
- * DSP-BIOS Bridge driver support functions for TI OMAP processors.
- *
- * Manage lists of notification events.
- *
- * Copyright (C) 2005-2006 Texas Instruments, Inc.
- *
- * This package is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
- * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
- */
-
-#ifndef NTFY_
-#define NTFY_
-
-#include <dspbridge/host_os.h>
-#include <dspbridge/dbdefs.h>
-#include <dspbridge/sync.h>
-
-/**
- * ntfy_object - head structure to nofify dspbridge events
- * @head: List of notify objects
- * @ntfy_lock: lock for list access.
- *
- */
-struct ntfy_object {
- struct raw_notifier_head head;/* List of notifier objects */
- spinlock_t ntfy_lock; /* For critical sections */
-};
-
-/**
- * ntfy_event - structure store specify event to be notified
- * @noti_block: List of notify objects
- * @event: event that it respond
- * @type: event type (only DSP_SIGNALEVENT supported)
- * @sync_obj: sync_event used to set the event
- *
- */
-struct ntfy_event {
- struct notifier_block noti_block;
- u32 event; /* Events to be notified about */
- u32 type; /* Type of notification to be sent */
- struct sync_object sync_obj;
-};
-
-
-/**
- * dsp_notifier_event() - callback function to nofity events
- * @this: pointer to itself struct notifier_block
- * @event: event to be notified.
- * @data: Currently not used.
- *
- */
-int dsp_notifier_event(struct notifier_block *this, unsigned long event,
- void *data);
-
-/**
- * ntfy_init() - Set the initial state of the ntfy_object structure.
- * @no: pointer to ntfy_object structure.
- *
- * This function sets the initial state of the ntfy_object in order it
- * can be used by the other ntfy functions.
- */
-
-static inline void ntfy_init(struct ntfy_object *no)
-{
- spin_lock_init(&no->ntfy_lock);
- RAW_INIT_NOTIFIER_HEAD(&no->head);
-}
-
-/**
- * ntfy_delete() - delete list of nofy events registered.
- * @ntfy_obj: Pointer to the ntfy object structure.
- *
- * This function is used to remove all the notify events registered.
- * unregister function is not needed in this function, to unregister
- * a ntfy_event please look at ntfy_register function.
- *
- */
-static inline void ntfy_delete(struct ntfy_object *ntfy_obj)
-{
- struct ntfy_event *ne;
- struct notifier_block *nb;
-
- spin_lock_bh(&ntfy_obj->ntfy_lock);
- nb = ntfy_obj->head.head;
- while (nb) {
- ne = container_of(nb, struct ntfy_event, noti_block);
- nb = nb->next;
- kfree(ne);
- }
- spin_unlock_bh(&ntfy_obj->ntfy_lock);
-}
-
-/**
- * ntfy_notify() - nofity all event register for an specific event.
- * @ntfy_obj: Pointer to the ntfy_object structure.
- * @event: event to be notified.
- *
- * This function traverses all the ntfy events registers and
- * set the event with mach with @event.
- */
-static inline void ntfy_notify(struct ntfy_object *ntfy_obj, u32 event)
-{
- spin_lock_bh(&ntfy_obj->ntfy_lock);
- raw_notifier_call_chain(&ntfy_obj->head, event, NULL);
- spin_unlock_bh(&ntfy_obj->ntfy_lock);
-}
-
-
-
-/**
- * ntfy_init() - Create and initialize a ntfy_event structure.
- * @event: event that the ntfy event will respond
- * @type event type (only DSP_SIGNALEVENT supported)
- *
- * This function create a ntfy_event element and sets the event it will
- * respond the ntfy_event in order it can be used by the other ntfy functions.
- * In case of success it will return a pointer to the ntfy_event struct
- * created. Otherwise it will return NULL;
- */
-
-static inline struct ntfy_event *ntfy_event_create(u32 event, u32 type)
-{
- struct ntfy_event *ne;
- ne = kmalloc(sizeof(struct ntfy_event), GFP_KERNEL);
- if (ne) {
- sync_init_event(&ne->sync_obj);
- ne->noti_block.notifier_call = dsp_notifier_event;
- ne->event = event;
- ne->type = type;
- }
- return ne;
-}
-
-/**
- * ntfy_register() - register new ntfy_event into a given ntfy_object
- * @ntfy_obj: Pointer to the ntfy_object structure.
- * @noti: Pointer to the handle to be returned to the user space.
- * @event event that the ntfy event will respond
- * @type event type (only DSP_SIGNALEVENT supported)
- *
- * This function register a new ntfy_event into the ntfy_object list,
- * which will respond to the @event passed.
- * This function will return 0 in case of error.
- * -EFAULT in case of bad pointers and
- * DSP_EMemory in case of no memory to create ntfy_event.
- */
-static inline int ntfy_register(struct ntfy_object *ntfy_obj,
- struct dsp_notification *noti,
- u32 event, u32 type)
-{
- struct ntfy_event *ne;
- int status = 0;
-
- if (!noti || !ntfy_obj) {
- status = -EFAULT;
- goto func_end;
- }
- if (!event) {
- status = -EINVAL;
- goto func_end;
- }
- ne = ntfy_event_create(event, type);
- if (!ne) {
- status = -ENOMEM;
- goto func_end;
- }
- noti->handle = &ne->sync_obj;
-
- spin_lock_bh(&ntfy_obj->ntfy_lock);
- raw_notifier_chain_register(&ntfy_obj->head, &ne->noti_block);
- spin_unlock_bh(&ntfy_obj->ntfy_lock);
-func_end:
- return status;
-}
-
-/**
- * ntfy_unregister() - unregister a ntfy_event from a given ntfy_object
- * @ntfy_obj: Pointer to the ntfy_object structure.
- * @noti: Pointer to the event that will be removed.
- *
- * This function unregister a ntfy_event from the ntfy_object list,
- * @noti contains the event which is wanted to be removed.
- * This function will return 0 in case of error.
- * -EFAULT in case of bad pointers and
- * DSP_EMemory in case of no memory to create ntfy_event.
- */
-static inline int ntfy_unregister(struct ntfy_object *ntfy_obj,
- struct dsp_notification *noti)
-{
- int status = 0;
- struct ntfy_event *ne;
-
- if (!noti || !ntfy_obj) {
- status = -EFAULT;
- goto func_end;
- }
-
- ne = container_of((struct sync_object *)noti, struct ntfy_event,
- sync_obj);
- spin_lock_bh(&ntfy_obj->ntfy_lock);
- raw_notifier_chain_unregister(&ntfy_obj->head,
- &ne->noti_block);
- kfree(ne);
- spin_unlock_bh(&ntfy_obj->ntfy_lock);
-func_end:
- return status;
-}
-
-#endif /* NTFY_ */