#pragma once #include "AP_HAL_Linux.h" #include "ToneAlarm.h" namespace Linux { class ToneAlarm_Raspilot : public ToneAlarm { public: ToneAlarm_Raspilot(); bool init() override; void stop() override; bool play() override; private: void _set_pwm0_period(uint32_t time_us); void _set_pwm0_duty(uint8_t percent); volatile uint32_t *_pwm; volatile uint32_t *_clk; }; }