ardupilot/libraries/AP_HAL/Util.h

102 lines
3.1 KiB
C++

#ifndef __AP_HAL_UTIL_H__
#define __AP_HAL_UTIL_H__
#include <stdarg.h>
#include "AP_HAL_Namespace.h"
class AP_HAL::Util {
public:
int snprintf(char* str, size_t size,
const char *format, ...);
int vsnprintf(char* str, size_t size,
const char *format, va_list ap);
void set_soft_armed(const bool b) { soft_armed = b; }
bool get_soft_armed() const { return soft_armed; }
void set_capabilities(uint64_t cap) { capabilities |= cap; }
void clear_capabilities(uint64_t cap) { capabilities &= ~(cap); }
uint64_t get_capabilities() const { return capabilities; }
virtual const char* get_custom_log_directory() { return NULL; }
virtual const char* get_custom_terrain_directory() const { return NULL; }
// run a debug shall on the given stream if possible. This is used
// to support dropping into a debug shell to run firmware upgrade
// commands
virtual bool run_debug_shell(AP_HAL::BetterStream *stream) = 0;
enum safety_state {
SAFETY_NONE, SAFETY_DISARMED, SAFETY_ARMED
};
/*
return state of safety switch, if applicable
*/
virtual enum safety_state safety_switch_state(void) { return SAFETY_NONE; }
/*
set system clock in UTC microseconds
*/
virtual void set_system_clock(uint64_t time_utc_usec) {}
/*
get system identifier (eg. serial number)
return false if a system identifier is not available
Buf should be filled with a printable string and must be null
terminated
*/
virtual bool get_system_id(char buf[40]) { return false; }
/**
how much free memory do we have in bytes. If unknown return 4096
*/
virtual uint32_t available_memory(void) { return 4096; }
/**
return commandline arguments, if available
*/
virtual void commandline_arguments(uint8_t &argc, char * const *&argv) { argc = 0; }
/*
ToneAlarm Driver
*/
virtual bool toneAlarm_init() { return false;}
virtual void toneAlarm_set_tune(uint8_t tune) {}
virtual void _toneAlarm_timer_tick() {}
/*
return a stream for access to a system shell, if available
*/
virtual AP_HAL::Stream *get_shell_stream() { return NULL; }
/* Support for an imu heating system */
virtual void set_imu_temp(float current) {}
/*
performance counter calls - wrapper around original PX4 interface
*/
enum perf_counter_type {
PC_COUNT, /**< count the number of times an event occurs */
PC_ELAPSED, /**< measure the time elapsed performing an event */
PC_INTERVAL /**< measure the interval between instances of an event */
};
typedef void *perf_counter_t;
virtual perf_counter_t perf_alloc(perf_counter_type t, const char *name) { return NULL; }
virtual void perf_begin(perf_counter_t h) {}
virtual void perf_end(perf_counter_t h) {}
virtual void perf_count(perf_counter_t h) {}
protected:
// we start soft_armed false, so that actuators don't send any
// values until the vehicle code has fully started
bool soft_armed = false;
uint64_t capabilities = 0;
};
#endif // __AP_HAL_UTIL_H__