ardupilot/libraries/AP_HAL_PX4/RCOutput.h

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#ifndef __AP_HAL_PX4_RCOUTPUT_H__
#define __AP_HAL_PX4_RCOUTPUT_H__
#include <AP_HAL_PX4.h>
#include <systemlib/perf_counter.h>
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#define PX4_NUM_OUTPUT_CHANNELS 16
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class PX4::PX4RCOutput : public AP_HAL::RCOutput
{
public:
void init(void* machtnichts);
void set_freq(uint32_t chmask, uint16_t freq_hz);
uint16_t get_freq(uint8_t ch);
void enable_ch(uint8_t ch);
void enable_mask(uint32_t chmask);
void disable_ch(uint8_t ch);
void disable_mask(uint32_t chmask);
void write(uint8_t ch, uint16_t period_us);
void write(uint8_t ch, uint16_t* period_us, uint8_t len);
uint16_t read(uint8_t ch);
void read(uint16_t* period_us, uint8_t len);
void _timer_tick(void);
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private:
int _pwm_fd;
int _alt_fd;
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uint16_t _freq_hz;
uint16_t _period[PX4_NUM_OUTPUT_CHANNELS];
volatile uint8_t _max_channel;
volatile bool _need_update;
perf_counter_t _perf_rcout;
uint32_t _last_output;
unsigned _servo_count;
unsigned _alt_servo_count;
uint32_t _rate_mask;
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};
#endif // __AP_HAL_PX4_RCOUTPUT_H__