f5175e1388
* Music player: cli tool and new worker * Music player cli: flush message * Music player: fix note calculation * MusicPlayer: fix # parsing and add magic * FuriHal: improve speaker volume handling. MusicPlayer: minor sustain improvements * MusicPlayer: fix buffer overseek * FuriHal: drop unused variables * MusicPlayer: LFO 4 magic * MusicPlayer: add RTTTL parser * MusicPlayer: refactoring and add file open dialog on start * MusicPlayer: fix memcpy issue and more * FuriHal: force disconnect USB on early init and then leave usb line alone for some time. * FuriHal: switch speaker to old volume. MusicPlayer: fix incorrect note history, and drop lfo from worker. Co-authored-by: DrZlo13 <who.just.the.doctor@gmail.com>
94 lines
2.8 KiB
C
94 lines
2.8 KiB
C
#include <furi_hal_speaker.h>
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#include <furi_hal_gpio.h>
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#include <furi_hal_resources.h>
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#include <stm32wbxx_ll_tim.h>
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#define FURI_HAL_SPEAKER_TIMER TIM16
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#define FURI_HAL_SPEAKER_CHANNEL LL_TIM_CHANNEL_CH1
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#define FURI_HAL_SPEAKER_PRESCALER 500
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#define FURI_HAL_SPEAKER_MAX_VOLUME 60
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// #define FURI_HAL_SPEAKER_NEW_VOLUME
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void furi_hal_speaker_init() {
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FURI_CRITICAL_ENTER();
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LL_TIM_DeInit(FURI_HAL_SPEAKER_TIMER);
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FURI_CRITICAL_EXIT();
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furi_hal_gpio_init_ex(
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&gpio_speaker, GpioModeAltFunctionPushPull, GpioPullNo, GpioSpeedLow, GpioAltFn14TIM16);
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}
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static inline uint32_t furi_hal_speaker_calculate_autoreload(float frequency) {
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uint32_t autoreload = (SystemCoreClock / FURI_HAL_SPEAKER_PRESCALER / frequency) - 1;
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if(autoreload < 2) {
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autoreload = 2;
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} else if(autoreload > UINT16_MAX) {
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autoreload = UINT16_MAX;
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}
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return autoreload;
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}
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static inline uint32_t furi_hal_speaker_calculate_compare(float volume) {
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if(volume < 0) volume = 0;
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if(volume > 1) volume = 1;
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volume = volume * volume * volume;
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#ifdef FURI_HAL_SPEAKER_NEW_VOLUME
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uint32_t compare_value = volume * FURI_HAL_SPEAKER_MAX_VOLUME;
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uint32_t clip_value = volume * LL_TIM_GetAutoReload(FURI_HAL_SPEAKER_TIMER) / 2;
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if(compare_value > clip_value) {
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compare_value = clip_value;
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}
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#else
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uint32_t compare_value = volume * LL_TIM_GetAutoReload(FURI_HAL_SPEAKER_TIMER) / 2;
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#endif
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if(compare_value == 0) {
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compare_value = 1;
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}
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return compare_value;
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}
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void furi_hal_speaker_start(float frequency, float volume) {
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if(volume <= 0) {
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furi_hal_speaker_stop();
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return;
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}
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LL_TIM_InitTypeDef TIM_InitStruct = {0};
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TIM_InitStruct.Prescaler = FURI_HAL_SPEAKER_PRESCALER - 1;
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TIM_InitStruct.Autoreload = furi_hal_speaker_calculate_autoreload(frequency);
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LL_TIM_Init(FURI_HAL_SPEAKER_TIMER, &TIM_InitStruct);
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LL_TIM_OC_InitTypeDef TIM_OC_InitStruct = {0};
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TIM_OC_InitStruct.OCMode = LL_TIM_OCMODE_PWM1;
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TIM_OC_InitStruct.OCState = LL_TIM_OCSTATE_ENABLE;
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TIM_OC_InitStruct.CompareValue = furi_hal_speaker_calculate_compare(volume);
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LL_TIM_OC_Init(FURI_HAL_SPEAKER_TIMER, FURI_HAL_SPEAKER_CHANNEL, &TIM_OC_InitStruct);
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LL_TIM_EnableAllOutputs(FURI_HAL_SPEAKER_TIMER);
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LL_TIM_EnableCounter(FURI_HAL_SPEAKER_TIMER);
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}
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void furi_hal_speaker_set_volume(float volume) {
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if(volume <= 0) {
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furi_hal_speaker_stop();
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return;
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}
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#if FURI_HAL_SPEAKER_CHANNEL == LL_TIM_CHANNEL_CH1
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LL_TIM_OC_SetCompareCH1(FURI_HAL_SPEAKER_TIMER, furi_hal_speaker_calculate_compare(volume));
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#else
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#error Invalid channel
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#endif
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}
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void furi_hal_speaker_stop() {
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LL_TIM_DisableAllOutputs(FURI_HAL_SPEAKER_TIMER);
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LL_TIM_DisableCounter(FURI_HAL_SPEAKER_TIMER);
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}
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