Arrow / Mbed OS DAPLink Reset

Repostiory containing DAPLink source code with Reset Pin workaround for HANI_IOT board.

Upstream: https://github.com/ARMmbed/DAPLink

source/rtos_none/SysTick_Handler.c@0:01f31e923fe2, 2020-04-07 (annotated)

Committer:
Pawel Zarembski
Date:
Tue Apr 07 12:55:42 2020 +0200
Revision:
0:01f31e923fe2
hani: DAPLink with reset workaround

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Pawel Zarembski 0:01f31e923fe2 1 /**
Pawel Zarembski 0:01f31e923fe2 2 * @file SysTick_Handler.c
Pawel Zarembski 0:01f31e923fe2 3 * @brief No RTOS port only needs a systick handler
Pawel Zarembski 0:01f31e923fe2 4 *
Pawel Zarembski 0:01f31e923fe2 5 * DAPLink Interface Firmware
Pawel Zarembski 0:01f31e923fe2 6 * Copyright (c) 2019, ARM Limited, All Rights Reserved
Pawel Zarembski 0:01f31e923fe2 7 * SPDX-License-Identifier: Apache-2.0
Pawel Zarembski 0:01f31e923fe2 8 *
Pawel Zarembski 0:01f31e923fe2 9 * Licensed under the Apache License, Version 2.0 (the "License"); you may
Pawel Zarembski 0:01f31e923fe2 10 * not use this file except in compliance with the License.
Pawel Zarembski 0:01f31e923fe2 11 * You may obtain a copy of the License at
Pawel Zarembski 0:01f31e923fe2 12 *
Pawel Zarembski 0:01f31e923fe2 13 * http://www.apache.org/licenses/LICENSE-2.0
Pawel Zarembski 0:01f31e923fe2 14 *
Pawel Zarembski 0:01f31e923fe2 15 * Unless required by applicable law or agreed to in writing, software
Pawel Zarembski 0:01f31e923fe2 16 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
Pawel Zarembski 0:01f31e923fe2 17 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
Pawel Zarembski 0:01f31e923fe2 18 * See the License for the specific language governing permissions and
Pawel Zarembski 0:01f31e923fe2 19 * limitations under the License.
Pawel Zarembski 0:01f31e923fe2 20 */
Pawel Zarembski 0:01f31e923fe2 21
Pawel Zarembski 0:01f31e923fe2 22 #include "SysTick_Handler.h"
Pawel Zarembski 0:01f31e923fe2 23 #include "device.h"
Pawel Zarembski 0:01f31e923fe2 24
Pawel Zarembski 0:01f31e923fe2 25 //SysTick Timer Configuration
Pawel Zarembski 0:01f31e923fe2 26 #ifndef OS_CLOCK
Pawel Zarembski 0:01f31e923fe2 27 #error "OS_CLOCK should be defined by HIC configuration"
Pawel Zarembski 0:01f31e923fe2 28 #endif
Pawel Zarembski 0:01f31e923fe2 29
Pawel Zarembski 0:01f31e923fe2 30 //Set the timer tick value for selected timer.
Pawel Zarembski 0:01f31e923fe2 31 #ifndef OS_TICK
Pawel Zarembski 0:01f31e923fe2 32 #error "OS_TICK should be defined by RTOS configuration"
Pawel Zarembski 0:01f31e923fe2 33 #endif
Pawel Zarembski 0:01f31e923fe2 34
Pawel Zarembski 0:01f31e923fe2 35 #define OS_TRV ((uint32_t)(((double)OS_CLOCK*(double)OS_TICK)/1E6)-1)
Pawel Zarembski 0:01f31e923fe2 36
Pawel Zarembski 0:01f31e923fe2 37
Pawel Zarembski 0:01f31e923fe2 38 static volatile uint32_t tick_counter = 0;
Pawel Zarembski 0:01f31e923fe2 39 static volatile uint32_t event_flags =0;
Pawel Zarembski 0:01f31e923fe2 40 static volatile uint32_t wait_counter = 0;
Pawel Zarembski 0:01f31e923fe2 41
Pawel Zarembski 0:01f31e923fe2 42 static osTimerFunc_t sysTickCb = NULL;
Pawel Zarembski 0:01f31e923fe2 43 static uint32_t tickFreq = 0;
Pawel Zarembski 0:01f31e923fe2 44 static osThreadFunc_t mainFuncCb = NULL;
Pawel Zarembski 0:01f31e923fe2 45
Pawel Zarembski 0:01f31e923fe2 46 void sysTickInit(void)
Pawel Zarembski 0:01f31e923fe2 47 {
Pawel Zarembski 0:01f31e923fe2 48 tick_counter = 0;
Pawel Zarembski 0:01f31e923fe2 49 event_flags=0;
Pawel Zarembski 0:01f31e923fe2 50 wait_counter = 0;
Pawel Zarembski 0:01f31e923fe2 51 sysTickCb = NULL;
Pawel Zarembski 0:01f31e923fe2 52 tickFreq = 0;
Pawel Zarembski 0:01f31e923fe2 53 mainFuncCb = NULL;
Pawel Zarembski 0:01f31e923fe2 54 SysTick_Config(OS_TRV);
Pawel Zarembski 0:01f31e923fe2 55 }
Pawel Zarembski 0:01f31e923fe2 56
Pawel Zarembski 0:01f31e923fe2 57
Pawel Zarembski 0:01f31e923fe2 58 void SysTick_Handler(void)
Pawel Zarembski 0:01f31e923fe2 59 {
Pawel Zarembski 0:01f31e923fe2 60 if (sysTickCb && tickFreq && (tick_counter % tickFreq)==0) {
Pawel Zarembski 0:01f31e923fe2 61 sysTickCb(NULL);
Pawel Zarembski 0:01f31e923fe2 62 }
Pawel Zarembski 0:01f31e923fe2 63 tick_counter++;
Pawel Zarembski 0:01f31e923fe2 64 if(wait_counter){
Pawel Zarembski 0:01f31e923fe2 65 --wait_counter;
Pawel Zarembski 0:01f31e923fe2 66 }
Pawel Zarembski 0:01f31e923fe2 67 }
Pawel Zarembski 0:01f31e923fe2 68
Pawel Zarembski 0:01f31e923fe2 69 void sysTickRegCallback(osTimerFunc_t callback)
Pawel Zarembski 0:01f31e923fe2 70 {
Pawel Zarembski 0:01f31e923fe2 71 sysTickCb = callback;
Pawel Zarembski 0:01f31e923fe2 72 }
Pawel Zarembski 0:01f31e923fe2 73
Pawel Zarembski 0:01f31e923fe2 74 void sysTickFreqSet(uint32_t ticks)
Pawel Zarembski 0:01f31e923fe2 75 {
Pawel Zarembski 0:01f31e923fe2 76 tickFreq = ticks;
Pawel Zarembski 0:01f31e923fe2 77 }
Pawel Zarembski 0:01f31e923fe2 78
Pawel Zarembski 0:01f31e923fe2 79 void sysTickWait(uint32_t wait)
Pawel Zarembski 0:01f31e923fe2 80 {
Pawel Zarembski 0:01f31e923fe2 81 wait_counter = wait;
Pawel Zarembski 0:01f31e923fe2 82 while(wait_counter);
Pawel Zarembski 0:01f31e923fe2 83 }
Pawel Zarembski 0:01f31e923fe2 84
Pawel Zarembski 0:01f31e923fe2 85 void sysTickEvtSet(uint32_t flag)
Pawel Zarembski 0:01f31e923fe2 86 {
Pawel Zarembski 0:01f31e923fe2 87 __disable_irq();
Pawel Zarembski 0:01f31e923fe2 88 event_flags |= flag;
Pawel Zarembski 0:01f31e923fe2 89 __enable_irq();
Pawel Zarembski 0:01f31e923fe2 90 }
Pawel Zarembski 0:01f31e923fe2 91
Pawel Zarembski 0:01f31e923fe2 92 uint32_t sysTickEvtWaitOr(uint32_t flag)
Pawel Zarembski 0:01f31e923fe2 93 {
Pawel Zarembski 0:01f31e923fe2 94 uint32_t return_flags=0;
Pawel Zarembski 0:01f31e923fe2 95 while ((flag&event_flags)==0);
Pawel Zarembski 0:01f31e923fe2 96 return_flags = event_flags;
Pawel Zarembski 0:01f31e923fe2 97 __disable_irq();
Pawel Zarembski 0:01f31e923fe2 98 event_flags &= ~return_flags;
Pawel Zarembski 0:01f31e923fe2 99 __enable_irq();
Pawel Zarembski 0:01f31e923fe2 100 return return_flags;
Pawel Zarembski 0:01f31e923fe2 101 }
Pawel Zarembski 0:01f31e923fe2 102
Pawel Zarembski 0:01f31e923fe2 103 uint32_t sysTickTime(void)
Pawel Zarembski 0:01f31e923fe2 104 {
Pawel Zarembski 0:01f31e923fe2 105 return tick_counter;
Pawel Zarembski 0:01f31e923fe2 106 }
Pawel Zarembski 0:01f31e923fe2 107
Pawel Zarembski 0:01f31e923fe2 108 void sysTickRegMainFunc(osThreadFunc_t func)
Pawel Zarembski 0:01f31e923fe2 109 {
Pawel Zarembski 0:01f31e923fe2 110 mainFuncCb = func;
Pawel Zarembski 0:01f31e923fe2 111 }
Pawel Zarembski 0:01f31e923fe2 112
Pawel Zarembski 0:01f31e923fe2 113 void sysTickStartMain(void)
Pawel Zarembski 0:01f31e923fe2 114 {
Pawel Zarembski 0:01f31e923fe2 115 if(mainFuncCb){
Pawel Zarembski 0:01f31e923fe2 116 mainFuncCb(NULL);
Pawel Zarembski 0:01f31e923fe2 117 }
Pawel Zarembski 0:01f31e923fe2 118 }
Pawel Zarembski 0:01f31e923fe2 119