ns_hal_init.c

00001 /*
00002  * Copyright (c) 2016-2018 ARM Limited. All rights reserved.
00003  * SPDX-License-Identifier: Apache-2.0
00004  * Licensed under the Apache License, Version 2.0 (the License); you may
00005  * not use this file except in compliance with the License.
00006  * You may obtain a copy of the License at
00007  *
00008  * http://www.apache.org/licenses/LICENSE-2.0
00009  *
00010  * Unless required by applicable law or agreed to in writing, software
00011  * distributed under the License is distributed on an AS IS BASIS, WITHOUT
00012  * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00013  * See the License for the specific language governing permissions and
00014  * limitations under the License.
00015  */
00016 
00017 #include "ns_types.h"
00018 #include <stdlib.h>
00019 #include <assert.h>
00020 
00021 #include "eventOS_scheduler.h"
00022 #include "ns_event_loop.h"
00023 #include "randLIB.h"
00024 #include "platform/arm_hal_timer.h"
00025 #include "ns_trace.h"
00026 
00027 #include "arm_hal_interrupt_private.h"
00028 #include "ns_hal_init.h"
00029 
00030 void ns_hal_init(void *heap, size_t h_size, void (*passed_fptr)(heap_fail_t), mem_stat_t *info_ptr)
00031 {
00032     static bool initted;
00033     if (initted) {
00034         return;
00035     }
00036     if (!heap) {
00037         heap = malloc(h_size);
00038         assert(heap);
00039         if (!heap) {
00040             return;
00041         }
00042     }
00043     platform_critical_init();
00044     ns_dyn_mem_init(heap, h_size, passed_fptr, info_ptr);
00045     platform_timer_enable();
00046     eventOS_scheduler_init();
00047 
00048     // We do not initialise randlib, as it should be done after
00049     // RF driver has started, to get MAC address and RF noise as seed.
00050     // We do not initialise trace - left to application.
00051 
00052     // Prepare the event loop lock which is used even if the loop
00053     // is not ran in a separate thread.
00054     ns_event_loop_init();
00055 
00056 #if !MBED_CONF_NANOSTACK_HAL_EVENT_LOOP_DISPATCH_FROM_APPLICATION
00057     ns_event_loop_thread_create();
00058     ns_event_loop_thread_start();
00059 #endif
00060 
00061     initted = true;
00062 }