Inheritance diagram for MPL3115A2:

Collaboration diagram for MPL3115A2:

Public Member Functions
	MPL3115A2 (device::Device interface, const char path)

	~MPL3115A2 ()

virtual int	init ()

virtual ssize_t	read (struct file filp, char buffer, size_t buflen)

virtual int	ioctl (struct file *filp, int cmd, unsigned long arg)

void	print_info ()
	Diagnostics - print some basic information about the driver. More...

Public Member Functions inherited from cdev::CDev
	CDev (const char *devname)
	Constructor. More...

	CDev (const CDev &)=delete

CDev &	operator= (const CDev &)=delete

	CDev (CDev &&)=delete

CDev &	operator= (CDev &&)=delete

virtual	~CDev ()

virtual int	open (file_t *filep)
	Handle an open of the device. More...

virtual int	close (file_t *filep)
	Handle a close of the device. More...

virtual ssize_t	read (file_t filep, char buffer, size_t buflen)
	Perform a read from the device. More...

virtual ssize_t	write (file_t filep, const char buffer, size_t buflen)
	Perform a write to the device. More...

virtual off_t	seek (file_t *filep, off_t offset, int whence)
	Perform a logical seek operation on the device. More...

virtual int	ioctl (file_t *filep, int cmd, unsigned long arg)
	Perform an ioctl operation on the device. More...

virtual int	poll (file_t filep, px4_pollfd_struct_t fds, bool setup)
	Perform a poll setup/teardown operation. More...

const char *	get_devname () const
	Get the device name. More...

Protected Member Functions
void	start (unsigned delay_us=1)
	Initialize the automatic measurement state machine and start it. More...

void	stop ()
	Stop the automatic measurement state machine. More...

void	Run () override
	Perform a poll cycle; collect from the previous measurement and start a new one. More...

virtual int	measure ()
	Issue a measurement command for the current state. More...

virtual int	collect ()
	Collect the result of the most recent measurement. More...

Protected Member Functions inherited from cdev::CDev
virtual pollevent_t	poll_state (file_t *filep)
	Check the current state of the device for poll events from the perspective of the file. More...

virtual void	poll_notify (pollevent_t events)
	Report new poll events. More...

virtual void	poll_notify_one (px4_pollfd_struct_t *fds, pollevent_t events)
	Internal implementation of poll_notify. More...

virtual int	open_first (file_t *filep)
	Notification of the first open. More...

virtual int	close_last (file_t *filep)
	Notification of the last close. More...

virtual int	register_class_devname (const char *class_devname)
	Register a class device name, automatically adding device class instance suffix if need be. More...

virtual int	unregister_class_devname (const char *class_devname, unsigned class_instance)
	Register a class device name, automatically adding device class instance suffix if need be. More...

void	lock ()
	Take the driver lock. More...

void	unlock ()
	Release the driver lock. More...

int	unregister_driver_and_memory ()
	First, unregisters the driver. More...

Protected Attributes
device::Device *	_interface

unsigned	_measure_interval

ringbuffer::RingBuffer *	_reports

bool	_collect_phase

float	_P

float	_T

orb_advert_t	_baro_topic

int	_orb_class_instance

int	_class_instance

perf_counter_t	_sample_perf

perf_counter_t	_measure_perf

perf_counter_t	_comms_errors

Protected Attributes inherited from cdev::CDev
px4_sem_t	_lock
	lock to protect access to all class members (also for derived classes) More...

Additional Inherited Members
Static Protected Attributes inherited from cdev::CDev
static const px4_file_operations_t	fops = {}
	Pointer to the default cdev file operations table; useful for registering clone devices etc. More...

Detailed Description

Definition at line 64 of file mpl3115a2.cpp.

Constructor & Destructor Documentation

◆ MPL3115A2()

MPL3115A2::MPL3115A2	(	device::Device *	interface,
		const char *	path
	)

Definition at line 149 of file mpl3115a2.cpp.

References _interface, DRV_BARO_DEVTYPE_MPL3115A2, and device::Device::set_device_type().

Referenced by mpl3115a2::start_bus().

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◆ ~MPL3115A2()

MPL3115A2::~MPL3115A2 ( )

Definition at line 168 of file mpl3115a2.cpp.

References _class_instance, _comms_errors, _interface, _measure_perf, _reports, _sample_perf, cdev::CDev::get_devname(), perf_free(), stop(), and cdev::CDev::unregister_class_devname().

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Member Function Documentation

◆ collect()

int MPL3115A2::collect ( )

protectedvirtual

Collect the result of the most recent measurement.

Definition at line 502 of file mpl3115a2.cpp.

References _baro_topic, _comms_errors, _interface, _P, _reports, _sample_perf, _T, CTRL_REG1_OST, sensor_baro_s::device_id, sensor_baro_s::error_count, f(), device::Device::get_device_id(), hrt_absolute_time(), MPL3115A2_CTRL_REG1, OK, ORB_ID, orb_publish(), OUT_P_MSB, perf_begin(), perf_count(), perf_end(), perf_event_count(), cdev::CDev::poll_notify(), sensor_baro_s::pressure, device::Device::read(), sensor_baro_s::temperature, and sensor_baro_s::timestamp.

Referenced by init(), read(), and Run().

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◆ init()

int MPL3115A2::init ( )

virtual

Reimplemented from cdev::CDev.

Definition at line 191 of file mpl3115a2.cpp.

References _baro_topic, _class_instance, _interface, _orb_class_instance, _reports, BARO_BASE_DEVICE_PATH, collect(), sensor_baro_s::device_id, device::Device::external(), device::Device::get_device_id(), ToneAlarmInterface::init(), measure(), OK, orb_advertise_multi(), ORB_ID, ORB_PRIO_DEFAULT, ORB_PRIO_HIGH, cdev::CDev::register_class_devname(), and warnx.

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◆ ioctl()

int MPL3115A2::ioctl	(	struct file *	filp,
		int	cmd,
		unsigned long	arg
	)

virtual

Definition at line 336 of file mpl3115a2.cpp.

References _interface, _measure_interval, device::Device::ioctl(), IOCTL_RESET, MPL3115A2_CONVERSION_INTERVAL, OK, SENSOR_POLLRATE_DEFAULT, SENSORIOCRESET, SENSORIOCSPOLLRATE, and start().

Referenced by mpl3115a2::reset(), and mpl3115a2::start_bus().

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◆ measure()

int MPL3115A2::measure ( )

protectedvirtual

Issue a measurement command for the current state.

Returns: OK if the measurement command was successful.

Definition at line 480 of file mpl3115a2.cpp.

References _comms_errors, _interface, _measure_perf, device::Device::ioctl(), IOCTL_MEASURE, MPL3115A2_CTRL_REG1, MPL3115A2_CTRL_TRIGGER, perf_begin(), perf_count(), and perf_end().

Referenced by init(), read(), and Run().

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◆ print_info()

void MPL3115A2::print_info ( )

Diagnostics - print some basic information about the driver.

Definition at line 564 of file mpl3115a2.cpp.

References _comms_errors, _measure_interval, _reports, _sample_perf, and perf_print_counter().

Referenced by mpl3115a2::info().

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◆ read()

ssize_t MPL3115A2::read	(	struct file *	filp,
		char *	buffer,
		size_t	buflen
	)

virtual

Definition at line 272 of file mpl3115a2.cpp.

References _measure_interval, _reports, collect(), measure(), and OK.

Referenced by mpl3115a2::test().

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◆ Run()

void MPL3115A2::Run ( )

overrideprotected

Perform a poll cycle; collect from the previous measurement and start a new one.

This is the heart of the measurement state machine. This function alternately starts a measurement, or collects the data from the previous measurement.

When the interval between measurements is greater than the minimum measurement interval, a gap is inserted between collection and measurement to provide the most recent measurement possible at the next interval.

Definition at line 426 of file mpl3115a2.cpp.

References _collect_phase, _interface, collect(), device::Device::ioctl(), IOCTL_RESET, measure(), MPL3115A2_CONVERSION_INTERVAL, and start().

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◆ start()

void MPL3115A2::start ( unsigned delay_us = 1 )

protected

Initialize the automatic measurement state machine and start it.

Parameters

delay_us the number of microseconds before executing the next cycle

Note: This function is called at open and error time. It might make sense to make it more aggressive about resetting the bus in case of errors.

Definition at line 409 of file mpl3115a2.cpp.

References _collect_phase, and _reports.

Referenced by ioctl(), and Run().

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◆ stop()

void MPL3115A2::stop ( )

protected

Stop the automatic measurement state machine.

Definition at line 420 of file mpl3115a2.cpp.

Referenced by ~MPL3115A2().

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Member Data Documentation

◆ _baro_topic

orb_advert_t MPL3115A2::_baro_topic

protected

Definition at line 92 of file mpl3115a2.cpp.

Referenced by collect(), and init().

◆ _class_instance

int MPL3115A2::_class_instance

protected

Definition at line 94 of file mpl3115a2.cpp.

Referenced by init(), and ~MPL3115A2().

◆ _collect_phase

bool MPL3115A2::_collect_phase

protected

Definition at line 86 of file mpl3115a2.cpp.

Referenced by Run(), and start().

◆ _comms_errors

perf_counter_t MPL3115A2::_comms_errors

protected

Definition at line 98 of file mpl3115a2.cpp.

Referenced by collect(), measure(), print_info(), and ~MPL3115A2().

◆ _interface

device::Device* MPL3115A2::_interface

protected

Definition at line 81 of file mpl3115a2.cpp.

Referenced by collect(), init(), ioctl(), measure(), MPL3115A2(), Run(), and ~MPL3115A2().

◆ _measure_interval

unsigned MPL3115A2::_measure_interval

protected

Definition at line 83 of file mpl3115a2.cpp.

Referenced by ioctl(), print_info(), and read().

◆ _measure_perf

perf_counter_t MPL3115A2::_measure_perf

protected

Definition at line 97 of file mpl3115a2.cpp.

Referenced by measure(), and ~MPL3115A2().

◆ _orb_class_instance

int MPL3115A2::_orb_class_instance

protected

Definition at line 93 of file mpl3115a2.cpp.

Referenced by init().

◆ _P

float MPL3115A2::_P

protected

Definition at line 89 of file mpl3115a2.cpp.

Referenced by collect().

◆ _reports

ringbuffer::RingBuffer* MPL3115A2::_reports

protected

Definition at line 85 of file mpl3115a2.cpp.

Referenced by collect(), init(), print_info(), read(), start(), and ~MPL3115A2().

◆ _sample_perf

perf_counter_t MPL3115A2::_sample_perf

protected

Definition at line 96 of file mpl3115a2.cpp.

Referenced by collect(), print_info(), and ~MPL3115A2().

◆ _T

float MPL3115A2::_T

protected

Definition at line 90 of file mpl3115a2.cpp.

Referenced by collect().

The documentation for this class was generated from the following file:

src/drivers/barometer/mpl3115a2/mpl3115a2.cpp

Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ MPL3115A2()

◆ ~MPL3115A2()

Member Function Documentation

◆ collect()

◆ init()

◆ ioctl()

◆ measure()

◆ print_info()

◆ read()

◆ Run()

◆ start()

◆ stop()

Member Data Documentation

◆ _baro_topic

◆ _class_instance

◆ _collect_phase

◆ _comms_errors

◆ _interface

◆ _measure_interval

◆ _measure_perf

◆ _orb_class_instance

◆ _P

◆ _reports

◆ _sample_perf

◆ _T