mesh_system.c

00001 /*
00002  * Copyright (c) 2015 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 <stdlib.h>
00018 #include "eventOS_scheduler.h"
00019 #include "eventOS_event.h"
00020 #include "net_interface.h"
00021 #include "nsdynmemLIB.h"
00022 #include "randLIB.h"
00023 #include "platform/arm_hal_timer.h"
00024 #include "ns_hal_init.h"
00025 #include "include/mesh_system.h"
00026 #include "mbed_assert.h"
00027 #include "mbed_error.h"
00028 // For tracing we need to define flag, have include and define group
00029 #define HAVE_DEBUG 1
00030 #include "ns_trace.h"
00031 #define TRACE_GROUP  "m6-mesh-system"
00032 
00033 /* Heap for NanoStack */
00034 #if !MBED_CONF_MBED_MESH_API_USE_MALLOC_FOR_HEAP
00035 static uint8_t app_stack_heap[MBED_CONF_MBED_MESH_API_HEAP_SIZE + 1];
00036 #else
00037 static uint8_t *app_stack_heap;
00038 #endif
00039 static bool mesh_initialized = false;
00040 #ifdef MBED_CONF_MBED_MESH_API_HEAP_STAT_INFO_DEFINITION
00041 MBED_CONF_MBED_MESH_API_HEAP_STAT_INFO_DEFINITION;
00042 #endif
00043 
00044 /*
00045  * Heap error handler, called when heap problem is detected.
00046  * Function is for-ever loop.
00047  */
00048 static void mesh_system_heap_error_handler(heap_fail_t event)
00049 {
00050     MBED_ERROR1(MBED_MAKE_ERROR(MBED_MODULE_NETWORK_STACK, MBED_ERROR_CODE_OUT_OF_MEMORY), "Heap error, mesh_system_heap_error_handler()", event);
00051 }
00052 
00053 void mesh_system_init(void)
00054 {
00055     if (mesh_initialized == false) {
00056 #if MBED_CONF_MBED_MESH_API_USE_MALLOC_FOR_HEAP
00057         app_stack_heap = malloc(MBED_CONF_MBED_MESH_API_HEAP_SIZE+1);
00058         MBED_ASSERT(app_stack_heap);
00059 #endif
00060         ns_hal_init(app_stack_heap, MBED_CONF_MBED_MESH_API_HEAP_SIZE,
00061                     mesh_system_heap_error_handler, MBED_CONF_MBED_MESH_API_HEAP_STAT_INFO);
00062         eventOS_scheduler_mutex_wait();
00063         net_init_core();
00064         eventOS_scheduler_mutex_release();
00065         mesh_initialized = true;
00066     }
00067 }
00068 
00069 void mesh_system_send_connect_event(uint8_t receiver)
00070 {
00071     arm_event_s event = {
00072         .sender =  receiver,
00073         .event_id = APPL_EVENT_CONNECT,
00074         .receiver = receiver,
00075         .event_type = APPLICATION_EVENT,
00076         .priority = ARM_LIB_LOW_PRIORITY_EVENT,
00077     };
00078     eventOS_event_send(&event);
00079 }