mirror of https://github.com/ARMmbed/mbed-os.git
132 lines
3.8 KiB
C
132 lines
3.8 KiB
C
/*
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* Copyright (c) 2016-2018 ARM Limited. All rights reserved.
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* SPDX-License-Identifier: Apache-2.0
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* Licensed under the Apache License, Version 2.0 (the License); you may
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* not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an AS IS BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "mbed_assert.h"
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#include "cmsis.h"
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#include "cmsis_os2.h"
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#include "mbed_rtos_storage.h"
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#include "ns_trace.h"
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#include "eventOS_scheduler.h"
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#include "ns_event_loop_mutex.h"
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#include "ns_event_loop.h"
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#define TRACE_GROUP "evlp"
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#if !MBED_CONF_NANOSTACK_HAL_EVENT_LOOP_USE_MBED_EVENTS
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#if MBED_CONF_NANOSTACK_HAL_EVENT_LOOP_DISPATCH_FROM_APPLICATION
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static mbed_rtos_storage_event_flags_t event_flag_cb;
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static const osEventFlagsAttr_t event_flags_attr = {
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.name = "nanostack_event_flags",
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.cb_mem = &event_flag_cb,
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.cb_size = sizeof event_flag_cb
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};
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static osEventFlagsId_t event_flag_id;
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#else
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#ifndef MBED_TZ_DEFAULT_ACCESS
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#define MBED_TZ_DEFAULT_ACCESS 0
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#endif
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static void event_loop_thread(void *arg);
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static uint64_t event_thread_stk[MBED_CONF_NANOSTACK_HAL_EVENT_LOOP_THREAD_STACK_SIZE/8];
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static mbed_rtos_storage_thread_t event_thread_tcb;
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static const osThreadAttr_t event_thread_attr = {
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.name = "nanostack_event_thread",
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.priority = osPriorityNormal,
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.stack_mem = &event_thread_stk[0],
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.stack_size = sizeof event_thread_stk,
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.cb_mem = &event_thread_tcb,
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.cb_size = sizeof event_thread_tcb,
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.tz_module = MBED_TZ_DEFAULT_ACCESS,
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};
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#endif
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#if !MBED_CONF_NANOSTACK_HAL_EVENT_LOOP_DISPATCH_FROM_APPLICATION
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static osThreadId_t event_thread_id;
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#endif
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void eventOS_scheduler_signal(void)
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{
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// XXX why does signal set lock if called with irqs disabled?
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//__enable_irq();
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//tr_debug("signal %p", (void*)event_thread_id);
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#if MBED_CONF_NANOSTACK_HAL_EVENT_LOOP_DISPATCH_FROM_APPLICATION
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osEventFlagsSet(event_flag_id, 1);
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#else
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osThreadFlagsSet(event_thread_id, 1);
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#endif
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//tr_debug("signalled %p", (void*)event_thread_id);
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}
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void eventOS_scheduler_idle(void)
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{
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//tr_debug("idle");
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eventOS_scheduler_mutex_release();
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#if MBED_CONF_NANOSTACK_HAL_EVENT_LOOP_DISPATCH_FROM_APPLICATION
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osEventFlagsWait(event_flag_id, 1, osFlagsWaitAny, osWaitForever);
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#else
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osThreadFlagsWait(1, 0, osWaitForever);
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#endif
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eventOS_scheduler_mutex_wait();
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}
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#if !MBED_CONF_NANOSTACK_HAL_EVENT_LOOP_DISPATCH_FROM_APPLICATION
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static void event_loop_thread(void *arg)
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{
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(void)arg;
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eventOS_scheduler_mutex_wait();
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eventOS_scheduler_run(); //Does not return
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}
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#endif
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// This is used to initialize the lock used by event loop even
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// if it is not ran in a separate thread.
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void ns_event_loop_init(void)
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{
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ns_event_loop_mutex_init();
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// If a separate event loop thread is not used, the signaling
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// happens via event flags instead of thread flags. This allows one to
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// perform the initialization from any thread and removes need to know the id
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// of event loop dispatch thread.
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#if MBED_CONF_NANOSTACK_HAL_EVENT_LOOP_DISPATCH_FROM_APPLICATION
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event_flag_id = osEventFlagsNew(&event_flags_attr);
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MBED_ASSERT(event_flag_id != NULL);
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#endif
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}
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#if !MBED_CONF_NANOSTACK_HAL_EVENT_LOOP_DISPATCH_FROM_APPLICATION
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void ns_event_loop_thread_create(void)
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{
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event_thread_id = osThreadNew(event_loop_thread, NULL, &event_thread_attr);
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MBED_ASSERT(event_thread_id != NULL);
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}
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void ns_event_loop_thread_start(void)
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{
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}
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#endif
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#endif // !MBED_CONF_NANOSTACK_HAL_EVENT_LOOP_USE_MBED_EVENTS
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