07f5cdf370
This is to prepare events API for interrupt based async block I/O, in which case UEFI events will be signaled from block driver callback(in in interrupt context).
52 lines
1.5 KiB
C
52 lines
1.5 KiB
C
/*
|
|
* Copyright (C) 2025 The Android Open Source Project
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*
|
|
*/
|
|
|
|
#ifndef __LIB_UEFI_EVENTS_H_
|
|
#define __LIB_UEFI_EVENTS_H_
|
|
#include <kernel/event.h>
|
|
#include <kernel/thread.h>
|
|
#include <lk/list.h>
|
|
#include <uefi/types.h>
|
|
|
|
struct EfiEventImpl final {
|
|
EfiEventType type;
|
|
event_t ev;
|
|
EfiEventNotify notify_fn = nullptr;
|
|
void *notify_ctx = nullptr;
|
|
volatile bool callback_called = false;
|
|
thread_t *creator_thread = nullptr;
|
|
bool ready() const { return ev.signaled; }
|
|
struct list_node node;
|
|
};
|
|
|
|
EfiStatus wait_for_event(size_t num_events, EfiEvent *event, size_t *index);
|
|
|
|
// Safe to call from interrupt context
|
|
EfiStatus signal_event(EfiEvent event);
|
|
|
|
EfiStatus check_event(EfiEvent event);
|
|
|
|
EfiStatus create_event(EfiEventType type, EfiTpl notify_tpl,
|
|
EfiEventNotify notify_fn, void *notify_ctx,
|
|
EfiEvent *event);
|
|
|
|
EfiStatus close_event(EfiEvent event);
|
|
|
|
EfiStatus set_timer(EfiEvent event, EfiTimerDelay type, uint64_t trigger_time);
|
|
|
|
#endif
|