Import Mbed OS hard-float snapshot

connectivity/nfc/libraries/stack/platform/nfc_scheduler.h

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+/*
+ * Copyright (c) 2014-2018, ARM Limited, All Rights Reserved
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * 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.
+ */
+/**
+ * \file nfc_scheduler.h
+ * \copyright Copyright (c) ARM Ltd 2014
+ * \author Donatien Garnier
+ */
+/** \addtogroup Core
+ *  @{
+ *  \name Scheduler
+ *  @{
+ */
+
+#ifndef NFC_SCHEDULER_H_
+#define NFC_SCHEDULER_H_
+
+#include "stack/nfc_common.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define EVENT_NONE         0
+#define EVENT_TIMEOUT      1
+#define EVENT_ABORTED      2
+#define EVENT_HW_INTERRUPT 4
+
+struct __nfc_timer;
+typedef struct __nfc_timer nfc_scheduler_timer_t;
+
+struct __nfc_task;
+typedef struct __nfc_task nfc_task_t;
+
+typedef struct __scheduler {
+    nfc_task_t *pNext;
+    nfc_scheduler_timer_t *pTimer;
+} nfc_scheduler_t;
+
+typedef void (*nfc_task_fn)(uint32_t events, void *pUserData);
+
+struct __nfc_task {
+    uint32_t events;
+    int64_t timeout; //millisecs
+    int64_t timeoutInitial;
+
+    nfc_task_fn fn;
+    void *pUserData;
+
+    nfc_task_t *pNext;
+};
+
+void nfc_scheduler_timer_init(nfc_scheduler_timer_t *timer);
+
+void nfc_scheduler_timer_start(nfc_scheduler_timer_t *timer);
+
+uint32_t nfc_scheduler_timer_get(nfc_scheduler_timer_t *timer);
+
+void nfc_scheduler_timer_stop(nfc_scheduler_timer_t *timer);
+
+void nfc_scheduler_timer_reset(nfc_scheduler_timer_t *timer);
+
+/** Init scheduler
+ * \param pScheduler scheduler instance to init
+ * \param pTimer timer instance
+ */
+void nfc_scheduler_init(nfc_scheduler_t *pScheduler, nfc_scheduler_timer_t *pTimer);
+
+/** Iterate through all tasks
+ * \param pScheduler scheduler instance
+ * \param events mask of events (except EVENT_TIMEOUT) that have been raised since this function last returned (0 on first call)
+ * \return time after which this function must be called again if no other event arises
+ */
+uint32_t nfc_scheduler_iteration(nfc_scheduler_t *pScheduler, uint32_t events);
+
+/** Queue a task to execute
+ * \param pScheduler scheduler instance
+ * \param pTask task to queue
+ *
+ */
+void nfc_scheduler_queue_task(nfc_scheduler_t *pScheduler, nfc_task_t *pTask);
+
+/** Remove a task to execute
+ * \param pScheduler scheduler instance
+ * \param pTask task to remove
+ * \param abort abort task if queued
+ */
+void nfc_scheduler_dequeue_task(nfc_scheduler_t *pScheduler, bool abort, nfc_task_t *pTask);
+
+/** Initialize task with the following parameters
+ * \param pTask task to initialize
+ * \param events events on which to call task
+ * \param timeout if relevant
+ * \param fn function to be called
+ * \param pUserData data that will be passed to function
+ */
+void task_init(nfc_task_t *pTask, uint32_t events, uint32_t timeout, nfc_task_fn fn, void *pUserData);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* NFC_SCHEDULER_H_ */
+
+/**
+ * @}
+ * @}
+ * */
+