leo hendrickson / Mbed OS S

simple-mbed-cloud-client/mbed-cloud-client/sal-stack-nanostack-eventloop/source/minar_hal_timer.cpp@0:25fa8795676b, 2021-04-18 (annotated)

Committer:
leothedragon
Date:
Sun Apr 18 15:20:23 2021 +0000
Revision:
0:25fa8795676b
DS

Who changed what in which revision?

UserRevisionLine numberNew contents of line
leothedragon 0:25fa8795676b 1 /*
leothedragon 0:25fa8795676b 2 * Copyright (c) 2016 ARM Limited, All Rights Reserved
leothedragon 0:25fa8795676b 3 */
leothedragon 0:25fa8795676b 4
leothedragon 0:25fa8795676b 5 // Include before mbed.h to properly get UINT*_C()
leothedragon 0:25fa8795676b 6
leothedragon 0:25fa8795676b 7 #include "ns_types.h"
leothedragon 0:25fa8795676b 8
leothedragon 0:25fa8795676b 9 #include "platform/arm_hal_timer.h"
leothedragon 0:25fa8795676b 10 #include "platform/arm_hal_interrupt.h"
leothedragon 0:25fa8795676b 11
leothedragon 0:25fa8795676b 12 #if defined(NS_EVENTLOOP_USE_TICK_TIMER) && defined(YOTTA_CFG_MINAR)
leothedragon 0:25fa8795676b 13
leothedragon 0:25fa8795676b 14 #include "minar/minar.h"
leothedragon 0:25fa8795676b 15 #include "mbed-drivers/mbed.h"
leothedragon 0:25fa8795676b 16 #include "core-util/FunctionPointer.h"
leothedragon 0:25fa8795676b 17 #include "core-util/Event.h"
leothedragon 0:25fa8795676b 18
leothedragon 0:25fa8795676b 19 #define TICK_TIMER_ID 1
leothedragon 0:25fa8795676b 20
leothedragon 0:25fa8795676b 21 using minar::Scheduler;
leothedragon 0:25fa8795676b 22 using minar::milliseconds;
leothedragon 0:25fa8795676b 23 using minar::callback_handle_t;
leothedragon 0:25fa8795676b 24 using namespace mbed::util;
leothedragon 0:25fa8795676b 25
leothedragon 0:25fa8795676b 26 static callback_handle_t sys_timer_handle;
leothedragon 0:25fa8795676b 27 static void (*tick_timer_callback)(void);
leothedragon 0:25fa8795676b 28
leothedragon 0:25fa8795676b 29 void timer_callback(void const *funcArgument)
leothedragon 0:25fa8795676b 30 {
leothedragon 0:25fa8795676b 31 (void)funcArgument;
leothedragon 0:25fa8795676b 32 if (NULL != tick_timer_callback) {
leothedragon 0:25fa8795676b 33 tick_timer_callback();
leothedragon 0:25fa8795676b 34 }
leothedragon 0:25fa8795676b 35 }
leothedragon 0:25fa8795676b 36
leothedragon 0:25fa8795676b 37 // Low precision platform tick timer
leothedragon 0:25fa8795676b 38 int8_t platform_tick_timer_register(void (*tick_timer_cb_handler)(void))
leothedragon 0:25fa8795676b 39 {
leothedragon 0:25fa8795676b 40 tick_timer_callback = tick_timer_cb_handler;
leothedragon 0:25fa8795676b 41 return TICK_TIMER_ID;
leothedragon 0:25fa8795676b 42 }
leothedragon 0:25fa8795676b 43
leothedragon 0:25fa8795676b 44 int8_t platform_tick_timer_start(uint32_t period_ms)
leothedragon 0:25fa8795676b 45 {
leothedragon 0:25fa8795676b 46 int8_t retval = -1;
leothedragon 0:25fa8795676b 47 if (sys_timer_handle != NULL) {
leothedragon 0:25fa8795676b 48 return 0; // Timer already started already so return success
leothedragon 0:25fa8795676b 49 }
leothedragon 0:25fa8795676b 50 Event e = FunctionPointer1<void, void const *>(timer_callback).bind(NULL);
leothedragon 0:25fa8795676b 51 if (e != NULL) {
leothedragon 0:25fa8795676b 52 sys_timer_handle = Scheduler::postCallback(e).period(milliseconds(period_ms)).getHandle();
leothedragon 0:25fa8795676b 53 if (sys_timer_handle != NULL) {
leothedragon 0:25fa8795676b 54 retval = 0;
leothedragon 0:25fa8795676b 55 }
leothedragon 0:25fa8795676b 56 }
leothedragon 0:25fa8795676b 57 return retval;
leothedragon 0:25fa8795676b 58 }
leothedragon 0:25fa8795676b 59
leothedragon 0:25fa8795676b 60 int8_t platform_tick_timer_stop(void)
leothedragon 0:25fa8795676b 61 {
leothedragon 0:25fa8795676b 62 int8_t retval = -1;
leothedragon 0:25fa8795676b 63 if (sys_timer_handle != NULL) {
leothedragon 0:25fa8795676b 64 Scheduler::cancelCallback(sys_timer_handle);
leothedragon 0:25fa8795676b 65 sys_timer_handle = NULL;
leothedragon 0:25fa8795676b 66 retval = 0;
leothedragon 0:25fa8795676b 67 }
leothedragon 0:25fa8795676b 68 return retval;
leothedragon 0:25fa8795676b 69 }
leothedragon 0:25fa8795676b 70
leothedragon 0:25fa8795676b 71 #endif // defined(NS_EVENTLOOP_USE_TICK_TIMER) && defined(YOTTA_CFG)