unleashed-firmware/firmware/targets/f7/furi_hal/furi_hal_delay.c
Georgii Surkov 917be9c6d3
[FL-2430] Automatic Desktop Locking (#1101)
* Add Auto Lock Time setting
* Update .gitignore
* Add value_index toolbox module
* Auto locking basic implementation
* Better AutoLock implementation, edge cases and cleanup
* Fix NULL pointer crash
* Turn off backlight shortly in locked mode
* Re-enable auto lock after pin lock
* Correctly handle start when pin locked
* Use timer to hide locked hint
* Use a single state variable instead of multiple bools
* Do not call update callback recursively
* Allow input when the Unlocked hint is shown
* Add a delay to backlight switch off while locking
* Better user input handling
* Switch backlight off after pin timeout
* Correct grammar in notification settings

Co-authored-by: あく <alleteam@gmail.com>
2022-04-14 15:20:41 +03:00

51 lines
1.2 KiB
C

#include "furi_hal_delay.h"
#include <furi.h>
#include <cmsis_os2.h>
#include <stm32wbxx_ll_utils.h>
#define TAG "FuriHalDelay"
static volatile uint32_t tick_cnt = 0;
void furi_hal_delay_init() {
CoreDebug->DEMCR |= CoreDebug_DEMCR_TRCENA_Msk;
DWT->CTRL |= DWT_CTRL_CYCCNTENA_Msk;
DWT->CYCCNT = 0U;
}
uint32_t furi_hal_delay_instructions_per_microsecond() {
return SystemCoreClock / 1000000;
}
void furi_hal_tick(void) {
tick_cnt++;
}
uint32_t furi_hal_get_tick(void) {
return tick_cnt;
}
uint32_t furi_hal_ms_to_ticks(float milliseconds) {
return milliseconds / (1000.0f / osKernelGetTickFreq());
}
void furi_hal_delay_us(float microseconds) {
uint32_t start = DWT->CYCCNT;
uint32_t time_ticks = microseconds * furi_hal_delay_instructions_per_microsecond();
while((DWT->CYCCNT - start) < time_ticks) {
};
}
// cannot be used in ISR
// TODO add delay_ISR variant
void furi_hal_delay_ms(float milliseconds) {
if(!FURI_IS_ISR() && osKernelGetState() == osKernelRunning) {
uint32_t ticks = milliseconds / (1000.0f / osKernelGetTickFreq());
osStatus_t result = osDelay(ticks);
(void)result;
furi_assert(result == osOK);
} else {
furi_hal_delay_us(milliseconds * 1000);
}
}