flipperzero-firmware/furi/core/timer.c
あく e3c7201a20
Furi: core refactoring and CMSIS removal part 2 (#1410)
* Furi: rename and move core
* Furi: drop CMSIS_OS header and unused api, partially refactor and cleanup the rest
* Furi: CMSIS_OS drop and refactoring.
* Furi: refactoring, remove cmsis legacy
* Furi: fix incorrect assert on queue deallocation, cleanup timer
* Furi: improve delay api, get rid of floats
* hal: dropped furi_hal_crc
* Furi: move DWT based delay to cortex HAL
* Furi: update core documentation

Co-authored-by: hedger <hedger@nanode.su>
2022-07-20 13:56:33 +03:00

143 lines
3.9 KiB
C

#include "timer.h"
#include "check.h"
#include "core/common_defines.h"
#include <FreeRTOS.h>
#include <timers.h>
typedef struct {
FuriTimerCallback func;
void* context;
} TimerCallback_t;
static void TimerCallback(TimerHandle_t hTimer) {
TimerCallback_t* callb;
/* Retrieve pointer to callback function and context */
callb = (TimerCallback_t*)pvTimerGetTimerID(hTimer);
/* Remove dynamic allocation flag */
callb = (TimerCallback_t*)((uint32_t)callb & ~1U);
if(callb != NULL) {
callb->func(callb->context);
}
}
FuriTimer* furi_timer_alloc(FuriTimerCallback func, FuriTimerType type, void* context) {
furi_assert((furi_is_irq_context() == 0U) && (func != NULL));
TimerHandle_t hTimer;
TimerCallback_t* callb;
UBaseType_t reload;
uint32_t callb_dyn;
hTimer = NULL;
callb = NULL;
callb_dyn = 0U;
/* Dynamic memory allocation is available: if memory for callback and */
/* its context is not provided, allocate it from dynamic memory pool */
if(callb == NULL) {
callb = (TimerCallback_t*)pvPortMalloc(sizeof(TimerCallback_t));
if(callb != NULL) {
/* Callback memory was allocated from dynamic pool, set flag */
callb_dyn = 1U;
}
}
if(callb != NULL) {
callb->func = func;
callb->context = context;
if(type == FuriTimerTypeOnce) {
reload = pdFALSE;
} else {
reload = pdTRUE;
}
/* Store callback memory dynamic allocation flag */
callb = (TimerCallback_t*)((uint32_t)callb | callb_dyn);
// TimerCallback function is always provided as a callback and is used to call application
// specified function with its context both stored in structure callb.
hTimer = xTimerCreate(NULL, 1, reload, callb, TimerCallback);
if((hTimer == NULL) && (callb != NULL) && (callb_dyn == 1U)) {
/* Failed to create a timer, release allocated resources */
callb = (TimerCallback_t*)((uint32_t)callb & ~1U);
vPortFree(callb);
}
}
/* Return timer ID */
return ((FuriTimer*)hTimer);
}
void furi_timer_free(FuriTimer* instance) {
furi_assert(!furi_is_irq_context());
furi_assert(instance);
TimerHandle_t hTimer = (TimerHandle_t)instance;
TimerCallback_t* callb;
callb = (TimerCallback_t*)pvTimerGetTimerID(hTimer);
if(xTimerDelete(hTimer, portMAX_DELAY) == pdPASS) {
if((uint32_t)callb & 1U) {
/* Callback memory was allocated from dynamic pool, clear flag */
callb = (TimerCallback_t*)((uint32_t)callb & ~1U);
/* Return allocated memory to dynamic pool */
vPortFree(callb);
}
}
}
FuriStatus furi_timer_start(FuriTimer* instance, uint32_t ticks) {
furi_assert(!furi_is_irq_context());
furi_assert(instance);
TimerHandle_t hTimer = (TimerHandle_t)instance;
FuriStatus stat;
if(xTimerChangePeriod(hTimer, ticks, portMAX_DELAY) == pdPASS) {
stat = FuriStatusOk;
} else {
stat = FuriStatusErrorResource;
}
/* Return execution status */
return (stat);
}
FuriStatus furi_timer_stop(FuriTimer* instance) {
furi_assert(!furi_is_irq_context());
furi_assert(instance);
TimerHandle_t hTimer = (TimerHandle_t)instance;
FuriStatus stat;
if(xTimerIsTimerActive(hTimer) == pdFALSE) {
stat = FuriStatusErrorResource;
} else {
if(xTimerStop(hTimer, portMAX_DELAY) == pdPASS) {
stat = FuriStatusOk;
} else {
stat = FuriStatusError;
}
}
/* Return execution status */
return (stat);
}
uint32_t furi_timer_is_running(FuriTimer* instance) {
furi_assert(!furi_is_irq_context());
furi_assert(instance);
TimerHandle_t hTimer = (TimerHandle_t)instance;
/* Return 0: not running, 1: running */
return (uint32_t)xTimerIsTimerActive(hTimer);
}