mirror of
https://github.com/UberGuidoZ/Flipper.git
synced 2024-12-24 15:30:11 +00:00
107 lines
3.0 KiB
C
107 lines
3.0 KiB
C
#include "speaker_hal.h"
|
|
|
|
#define FURI_HAL_SPEAKER_TIMER TIM16
|
|
#define FURI_HAL_SPEAKER_CHANNEL LL_TIM_CHANNEL_CH1
|
|
#define FURI_HAL_SPEAKER_PRESCALER 500
|
|
|
|
void tracker_speaker_play(float frequency, float pwm) {
|
|
uint32_t autoreload = (SystemCoreClock / FURI_HAL_SPEAKER_PRESCALER / frequency) - 1;
|
|
if(autoreload < 2) {
|
|
autoreload = 2;
|
|
} else if(autoreload > UINT16_MAX) {
|
|
autoreload = UINT16_MAX;
|
|
}
|
|
|
|
if(pwm < 0) pwm = 0;
|
|
if(pwm > 1) pwm = 1;
|
|
|
|
uint32_t compare_value = pwm * autoreload;
|
|
|
|
if(compare_value == 0) {
|
|
compare_value = 1;
|
|
}
|
|
|
|
if(LL_TIM_OC_GetCompareCH1(FURI_HAL_SPEAKER_TIMER) != compare_value) {
|
|
LL_TIM_OC_SetCompareCH1(FURI_HAL_SPEAKER_TIMER, compare_value);
|
|
}
|
|
|
|
if(LL_TIM_GetAutoReload(FURI_HAL_SPEAKER_TIMER) != autoreload) {
|
|
LL_TIM_SetAutoReload(FURI_HAL_SPEAKER_TIMER, autoreload);
|
|
if(LL_TIM_GetCounter(FURI_HAL_SPEAKER_TIMER) > autoreload) {
|
|
LL_TIM_SetCounter(FURI_HAL_SPEAKER_TIMER, 0);
|
|
}
|
|
}
|
|
|
|
LL_TIM_EnableAllOutputs(FURI_HAL_SPEAKER_TIMER);
|
|
}
|
|
|
|
void tracker_speaker_stop() {
|
|
LL_TIM_DisableAllOutputs(FURI_HAL_SPEAKER_TIMER);
|
|
}
|
|
|
|
void tracker_speaker_init() {
|
|
if(furi_hal_speaker_is_mine() || furi_hal_speaker_acquire(30)) {
|
|
furi_hal_speaker_start(200.0f, 0.01f);
|
|
tracker_speaker_stop();
|
|
}
|
|
}
|
|
|
|
void tracker_speaker_deinit() {
|
|
if(furi_hal_speaker_is_mine()) {
|
|
furi_hal_speaker_stop();
|
|
furi_hal_speaker_release();
|
|
}
|
|
}
|
|
|
|
static FuriHalInterruptISR tracker_isr;
|
|
static void* tracker_isr_context;
|
|
static void tracker_interrupt_cb(void* context) {
|
|
UNUSED(context);
|
|
|
|
if(LL_TIM_IsActiveFlag_UPDATE(TIM2)) {
|
|
LL_TIM_ClearFlag_UPDATE(TIM2);
|
|
|
|
if(tracker_isr) {
|
|
tracker_isr(tracker_isr_context);
|
|
}
|
|
}
|
|
}
|
|
|
|
void tracker_interrupt_init(float freq, FuriHalInterruptISR isr, void* context) {
|
|
tracker_isr = isr;
|
|
tracker_isr_context = context;
|
|
|
|
furi_hal_interrupt_set_isr(FuriHalInterruptIdTIM2, tracker_interrupt_cb, NULL);
|
|
|
|
LL_TIM_InitTypeDef TIM_InitStruct = {0};
|
|
// Prescaler to get 1kHz clock
|
|
TIM_InitStruct.Prescaler = SystemCoreClock / 1000000 - 1;
|
|
TIM_InitStruct.CounterMode = LL_TIM_COUNTERMODE_UP;
|
|
// Auto reload to get freq Hz interrupt
|
|
TIM_InitStruct.Autoreload = (1000000 / freq) - 1;
|
|
TIM_InitStruct.ClockDivision = LL_TIM_CLOCKDIVISION_DIV1;
|
|
LL_TIM_Init(TIM2, &TIM_InitStruct);
|
|
LL_TIM_EnableIT_UPDATE(TIM2);
|
|
LL_TIM_EnableAllOutputs(TIM2);
|
|
LL_TIM_EnableCounter(TIM2);
|
|
}
|
|
|
|
void tracker_interrupt_deinit() {
|
|
FURI_CRITICAL_ENTER();
|
|
LL_TIM_DeInit(TIM2);
|
|
FURI_CRITICAL_EXIT();
|
|
|
|
furi_hal_interrupt_set_isr(FuriHalInterruptIdTIM2, NULL, NULL);
|
|
}
|
|
|
|
void tracker_debug_init() {
|
|
furi_hal_gpio_init(&gpio_ext_pc3, GpioModeOutputPushPull, GpioPullNo, GpioSpeedLow);
|
|
}
|
|
|
|
void tracker_debug_set(bool value) {
|
|
furi_hal_gpio_write(&gpio_ext_pc3, value);
|
|
}
|
|
|
|
void tracker_debug_deinit() {
|
|
furi_hal_gpio_init(&gpio_ext_pc3, GpioModeAnalog, GpioPullNo, GpioSpeedLow);
|
|
} |