Inheritance diagram for LPS25H:

Collaboration diagram for LPS25H:

Public Member Functions
	LPS25H (device::Device interface, const char path)

virtual	~LPS25H ()

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 Attributes
device::Device *	_interface

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

Private Member Functions
void	start ()
	Initialise the automatic measurement state machine and start it. More...

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

int	reset ()
	Reset the device. More...

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

int	write_reg (uint8_t reg, uint8_t val)
	Write a register. More...

int	read_reg (uint8_t reg, uint8_t &val)
	Read a register. More...

int	measure ()
	Issue a measurement command. More...

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

	LPS25H (const LPS25H &)

LPS25H	operator= (const LPS25H &)

Private Attributes
unsigned	_measure_interval {0}

ringbuffer::RingBuffer *	_reports {nullptr}

bool	_collect_phase {false}

orb_advert_t	_baro_topic {nullptr}

int	_orb_class_instance {-1}

int	_class_instance {-1}

perf_counter_t	_sample_perf

perf_counter_t	_comms_errors

sensor_baro_s	_last_report {}
	used for info() More...

Additional Inherited Members
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...

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 154 of file lps25h.cpp.

Constructor & Destructor Documentation

◆ LPS25H() [1/2]

LPS25H::LPS25H	(	device::Device *	interface,
		const char *	path
	)

Definition at line 262 of file lps25h.cpp.

References _interface, DRV_BARO_DEVTYPE_LPS25H, and device::Device::set_device_type().

Referenced by lps25h::start_bus().

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◆ ~LPS25H()

LPS25H::~LPS25H ( )

virtual

Definition at line 272 of file lps25h.cpp.

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

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◆ LPS25H() [2/2]

LPS25H::LPS25H ( const LPS25H & )

private

Member Function Documentation

◆ collect()

int LPS25H::collect ( )

private

Collect the result of the most recent measurement.

Definition at line 551 of file lps25h.cpp.

References _baro_topic, _comms_errors, _interface, _last_report, _orb_class_instance, _reports, _sample_perf, ADDR_STATUS_REG, sensor_baro_s::device_id, sensor_baro_s::error_count, device::Device::get_device_id(), hrt_absolute_time(), OK, orb_advertise_multi(), ORB_ID, ORB_PRIO_HIGH, ORB_PRIO_MAX, orb_publish(), perf_begin(), perf_count(), perf_end(), perf_event_count(), cdev::CDev::poll_notify(), sensor_baro_s::pressure, device::Device::read(), status, sensor_baro_s::temperature, and sensor_baro_s::timestamp.

Referenced by read(), and Run().

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◆ init()

int LPS25H::init ( )

virtual

Reimplemented from cdev::CDev.

Definition at line 293 of file lps25h.cpp.

References _class_instance, _reports, BARO_BASE_DEVICE_PATH, ToneAlarmInterface::init(), OK, cdev::CDev::register_class_devname(), and reset().

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◆ ioctl()

int LPS25H::ioctl	(	struct file *	filp,
		int	cmd,
		unsigned long	arg
	)

virtual

Definition at line 386 of file lps25h.cpp.

References _interface, _measure_interval, device::Device::ioctl(), LPS25H_CONVERSION_INTERVAL, OK, reset(), SENSOR_POLLRATE_DEFAULT, SENSORIOCRESET, SENSORIOCSPOLLRATE, and start().

Referenced by lps25h::reset(), and lps25h::start_bus().

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◆ measure()

int LPS25H::measure ( )

private

Issue a measurement command.

Returns: OK if the measurement command was successful.

Definition at line 534 of file lps25h.cpp.

References _comms_errors, ADDR_CTRL_REG2, CTRL_REG2_ONE_SHOT, OK, perf_count(), and write_reg().

Referenced by read(), and Run().

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◆ operator=()

LPS25H LPS25H::operator= ( const LPS25H & )

private

◆ print_info()

void LPS25H::print_info ( )

Diagnostics - print some basic information about the driver.

Definition at line 646 of file lps25h.cpp.

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

Referenced by lps25h::info().

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◆ read()

ssize_t LPS25H::read	(	struct file *	filp,
		char *	buffer,
		size_t	buflen
	)

virtual

Definition at line 327 of file lps25h.cpp.

References _measure_interval, _reports, collect(), LPS25H_CONVERSION_INTERVAL, measure(), and OK.

Referenced by lps25h::test().

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◆ read_reg()

int LPS25H::read_reg	(	uint8_t	reg,
		uint8_t &	val
	)

private

Read a register.

Parameters

reg	The register to read.
val	The value read.

Returns: OK on read success.

Definition at line 637 of file lps25h.cpp.

References _interface, and device::Device::read().

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◆ reset()

int LPS25H::reset ( )

private

Reset the device.

Definition at line 470 of file lps25h.cpp.

References ADDR_CTRL_REG1, ADDR_CTRL_REG2, CTRL_REG1_PD, CTRL_REG2_BOOT, CTRL_REG2_SWRESET, and write_reg().

Referenced by init(), and ioctl().

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◆ Run()

void LPS25H::Run ( )

overrideprivate

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 493 of file lps25h.cpp.

References _collect_phase, _measure_interval, collect(), LPS25H_CONVERSION_INTERVAL, measure(), OK, and start().

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◆ start()

void LPS25H::start ( )

private

Initialise the automatic measurement state machine and start it.

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 453 of file lps25h.cpp.

References _collect_phase, and _reports.

Referenced by ioctl(), and Run().

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◆ stop()

void LPS25H::stop ( )

private

Stop the automatic measurement state machine.

Definition at line 464 of file lps25h.cpp.

Referenced by ~LPS25H().

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◆ write_reg()

int LPS25H::write_reg	(	uint8_t	reg,
		uint8_t	val
	)

private

Write a register.

Parameters

reg	The register to write.
val	The value to write.

Returns: OK on write success.

Definition at line 630 of file lps25h.cpp.

References _interface, and device::Device::write().

Referenced by measure(), and reset().

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Member Data Documentation

◆ _baro_topic

orb_advert_t LPS25H::_baro_topic {nullptr}

private

Definition at line 179 of file lps25h.cpp.

Referenced by collect().

◆ _class_instance

int LPS25H::_class_instance {-1}

private

Definition at line 181 of file lps25h.cpp.

Referenced by init(), and ~LPS25H().

◆ _collect_phase

bool LPS25H::_collect_phase {false}

private

Definition at line 177 of file lps25h.cpp.

Referenced by Run(), and start().

◆ _comms_errors

perf_counter_t LPS25H::_comms_errors

private

Definition at line 184 of file lps25h.cpp.

Referenced by collect(), measure(), print_info(), and ~LPS25H().

◆ _interface

device::Device* LPS25H::_interface

protected

Definition at line 171 of file lps25h.cpp.

Referenced by collect(), ioctl(), LPS25H(), read_reg(), write_reg(), and ~LPS25H().

◆ _last_report

sensor_baro_s LPS25H::_last_report {}

private

used for info()

Definition at line 186 of file lps25h.cpp.

Referenced by collect(), and print_info().

◆ _measure_interval

unsigned LPS25H::_measure_interval {0}

private

Definition at line 174 of file lps25h.cpp.

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

◆ _orb_class_instance

int LPS25H::_orb_class_instance {-1}

private

Definition at line 180 of file lps25h.cpp.

Referenced by collect().

◆ _reports

ringbuffer::RingBuffer* LPS25H::_reports {nullptr}

private

Definition at line 176 of file lps25h.cpp.

Referenced by collect(), init(), print_info(), read(), start(), and ~LPS25H().

◆ _sample_perf

perf_counter_t LPS25H::_sample_perf

private

Definition at line 183 of file lps25h.cpp.

Referenced by collect(), print_info(), and ~LPS25H().

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

src/drivers/barometer/lps25h/lps25h.cpp

Public Member Functions

Protected Attributes

Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ LPS25H() [1/2]

◆ ~LPS25H()

◆ LPS25H() [2/2]

Member Function Documentation

◆ collect()

◆ init()

◆ ioctl()

◆ measure()

◆ operator=()

◆ print_info()

◆ read()

◆ read_reg()

◆ reset()

◆ Run()

◆ start()

◆ stop()

◆ write_reg()

Member Data Documentation

◆ _baro_topic

◆ _class_instance

◆ _collect_phase

◆ _comms_errors

◆ _interface

◆ _last_report

◆ _measure_interval

◆ _orb_class_instance

◆ _reports

◆ _sample_perf