#include <pca9554.h>

Inheritance diagram for esphome::pca9554::PCA9554Component:

Public Member Functions
	PCA9554Component ()=default

void	setup () override
	Check i2c availability and setup masks. More...

void	loop () override
	Poll for input changes periodically. More...

bool	digital_read (uint8_t pin)
	Helper function to read the value of a pin. More...

void	digital_write (uint8_t pin, bool value)
	Helper function to write the value of a pin. More...

void	pin_mode (uint8_t pin, gpio::Flags flags)
	Helper function to set the pin mode of a pin. More...

float	get_setup_priority () const override

float	get_loop_priority () const override

void	dump_config () override

void	set_pin_count (size_t pin_count)

Public Member Functions inherited from esphome::Component
float	get_actual_setup_priority () const

void	set_setup_priority (float priority)

void	call ()

virtual void	on_shutdown ()

virtual void	on_safe_shutdown ()

uint32_t	get_component_state () const

virtual void	mark_failed ()
	Mark this component as failed. More...

bool	is_failed () const

bool	is_ready () const

virtual bool	can_proceed ()

bool	status_has_warning () const

bool	status_has_error () const

void	status_set_warning (const char *message="unspecified")

void	status_set_error (const char *message="unspecified")

void	status_clear_warning ()

void	status_clear_error ()

void	status_momentary_warning (const std::string &name, uint32_t length=5000)

void	status_momentary_error (const std::string &name, uint32_t length=5000)

bool	has_overridden_loop () const

void	set_component_source (const char *source)
	Set where this component was loaded from for some debug messages. More...

const char *	get_component_source () const
	Get the integration where this component was declared as a string. More...

Public Member Functions inherited from esphome::i2c::I2CDevice
	I2CDevice ()=default
	we use the C++ default constructor More...

void	set_i2c_address (uint8_t address)
	We store the address of the device on the bus. More...

void	set_i2c_bus (I2CBus *bus)
	we store the pointer to the I2CBus to use More...

I2CRegister	reg (uint8_t a_register)
	calls the I2CRegister constructor More...

I2CRegister16	reg16 (uint16_t a_register)
	calls the I2CRegister16 constructor More...

ErrorCode	read (uint8_t *data, size_t len)
	reads an array of bytes from the device using an I2CBus More...

ErrorCode	read_register (uint8_t a_register, uint8_t *data, size_t len, bool stop=true)
	reads an array of bytes from a specific register in the I²C device More...

ErrorCode	read_register16 (uint16_t a_register, uint8_t *data, size_t len, bool stop=true)
	reads an array of bytes from a specific register in the I²C device More...

ErrorCode	write (const uint8_t *data, size_t len, bool stop=true)
	writes an array of bytes to a device using an I2CBus More...

ErrorCode	write_register (uint8_t a_register, const uint8_t *data, size_t len, bool stop=true)
	writes an array of bytes to a specific register in the I²C device More...

ErrorCode	write_register16 (uint16_t a_register, const uint8_t *data, size_t len, bool stop=true)
	write an array of bytes to a specific register in the I²C device More...

bool	read_bytes (uint8_t a_register, uint8_t *data, uint8_t len)
	Compat APIs All methods below have been added for compatibility reasons. More...

bool	read_bytes_raw (uint8_t *data, uint8_t len)

template<size_t N>
optional< std::array< uint8_t, N > >	read_bytes (uint8_t a_register)

template<size_t N>
optional< std::array< uint8_t, N > >	read_bytes_raw ()

bool	read_bytes_16 (uint8_t a_register, uint16_t *data, uint8_t len)

bool	read_byte (uint8_t a_register, uint8_t *data, bool stop=true)

optional< uint8_t >	read_byte (uint8_t a_register)

bool	read_byte_16 (uint8_t a_register, uint16_t *data)

bool	write_bytes (uint8_t a_register, const uint8_t *data, uint8_t len, bool stop=true)

bool	write_bytes (uint8_t a_register, const std::vector< uint8_t > &data)

template<size_t N>
bool	write_bytes (uint8_t a_register, const std::array< uint8_t, N > &data)

bool	write_bytes_16 (uint8_t a_register, const uint16_t *data, uint8_t len)

bool	write_byte (uint8_t a_register, uint8_t data, bool stop=true)

bool	write_byte_16 (uint8_t a_register, uint16_t data)

Protected Member Functions
bool	read_inputs_ ()

bool	write_register_ (uint8_t reg, uint16_t value)

Protected Member Functions inherited from esphome::Component
virtual void	call_loop ()

virtual void	call_setup ()

virtual void	call_dump_config ()

void	set_interval (const std::string &name, uint32_t interval, std::function< void()> &&f)
	Set an interval function with a unique name. More...

void	set_interval (uint32_t interval, std::function< void()> &&f)

bool	cancel_interval (const std::string &name)
	Cancel an interval function. More...

void	set_retry (const std::string &name, uint32_t initial_wait_time, uint8_t max_attempts, std::function< RetryResult(uint8_t)> &&f, float backoff_increase_factor=1.0f)
	Set an retry function with a unique name. More...

void	set_retry (uint32_t initial_wait_time, uint8_t max_attempts, std::function< RetryResult(uint8_t)> &&f, float backoff_increase_factor=1.0f)

bool	cancel_retry (const std::string &name)
	Cancel a retry function. More...

void	set_timeout (const std::string &name, uint32_t timeout, std::function< void()> &&f)
	Set a timeout function with a unique name. More...

void	set_timeout (uint32_t timeout, std::function< void()> &&f)

bool	cancel_timeout (const std::string &name)
	Cancel a timeout function. More...

void	defer (const std::string &name, std::function< void()> &&f)
	Defer a callback to the next loop() call. More...

void	defer (std::function< void()> &&f)
	Defer a callback to the next loop() call. More...

bool	cancel_defer (const std::string &name)
	Cancel a defer callback using the specified name, name must not be empty. More...

Protected Attributes
size_t	pin_count_ {8}
	number of bits the expander has More...

size_t	reg_width_ {1}
	width of registers More...

uint16_t	config_mask_ {0x00}
	Mask for the pin config - 1 means OUTPUT, 0 means INPUT. More...

uint16_t	output_mask_ {0x00}
	The mask to write as output state - 1 means HIGH, 0 means LOW. More...

uint16_t	input_mask_ {0x00}
	The state of the actual input pin states - 1 means HIGH, 0 means LOW. More...

uint16_t	was_previously_read_ = {0x00}
	Flags to check if read previously during this loop. More...

esphome::i2c::ErrorCode	last_error_
	Storage for last I2C error seen. More...

Protected Attributes inherited from esphome::Component
uint32_t	component_state_ {0x0000}
	State of this component. More...

float	setup_priority_override_ {NAN}

const char *	component_source_ {nullptr}

Protected Attributes inherited from esphome::i2c::I2CDevice
uint8_t	address_ {0x00}
	store the address of the device on the bus More...

I2CBus *	bus_ {nullptr}
	pointer to I2CBus instance More...

Detailed Description

Definition at line 10 of file pca9554.h.

Constructor & Destructor Documentation

◆ PCA9554Component()

esphome::pca9554::PCA9554Component::PCA9554Component ( )

default

Member Function Documentation

◆ digital_read()

bool esphome::pca9554::PCA9554Component::digital_read ( uint8_t pin )

Helper function to read the value of a pin.

Definition at line 56 of file pca9554.cpp.

◆ digital_write()

void esphome::pca9554::PCA9554Component::digital_write	(	uint8_t	pin,
		bool	value
	)

Helper function to write the value of a pin.

Definition at line 70 of file pca9554.cpp.

◆ dump_config()

void esphome::pca9554::PCA9554Component::dump_config ( )

overridevirtual

Reimplemented from esphome::Component.

Definition at line 47 of file pca9554.cpp.

◆ get_loop_priority()

float esphome::pca9554::PCA9554Component::get_loop_priority ( ) const

overridevirtual

Reimplemented from esphome::Component.

Definition at line 131 of file pca9554.cpp.

◆ get_setup_priority()

float esphome::pca9554::PCA9554Component::get_setup_priority ( ) const

overridevirtual

Reimplemented from esphome::Component.

Definition at line 127 of file pca9554.cpp.

◆ loop()

void esphome::pca9554::PCA9554Component::loop ( )

overridevirtual

Poll for input changes periodically.

Reimplemented from esphome::Component.

Definition at line 40 of file pca9554.cpp.

◆ pin_mode()

void esphome::pca9554::PCA9554Component::pin_mode	(	uint8_t	pin,
		gpio::Flags	flags
	)

Helper function to set the pin mode of a pin.

Definition at line 79 of file pca9554.cpp.

◆ read_inputs_()

bool esphome::pca9554::PCA9554Component::read_inputs_ ( )

protected

Definition at line 90 of file pca9554.cpp.

◆ set_pin_count()

void esphome::pca9554::PCA9554Component::set_pin_count ( size_t pin_count )

inline

Definition at line 31 of file pca9554.h.

◆ setup()

void esphome::pca9554::PCA9554Component::setup ( )

overridevirtual

Check i2c availability and setup masks.

Reimplemented from esphome::Component.

Definition at line 15 of file pca9554.cpp.

◆ write_register_()

bool esphome::pca9554::PCA9554Component::write_register_	(	uint8_t	reg,
		uint16_t	value
	)

protected

Definition at line 112 of file pca9554.cpp.

Field Documentation

◆ config_mask_

uint16_t esphome::pca9554::PCA9554Component::config_mask_ {0x00}

protected

Mask for the pin config - 1 means OUTPUT, 0 means INPUT.

Definition at line 43 of file pca9554.h.

◆ input_mask_

uint16_t esphome::pca9554::PCA9554Component::input_mask_ {0x00}

protected

The state of the actual input pin states - 1 means HIGH, 0 means LOW.

Definition at line 47 of file pca9554.h.

◆ last_error_

esphome::i2c::ErrorCode esphome::pca9554::PCA9554Component::last_error_

protected

Storage for last I2C error seen.

Definition at line 51 of file pca9554.h.

◆ output_mask_

uint16_t esphome::pca9554::PCA9554Component::output_mask_ {0x00}

protected

The mask to write as output state - 1 means HIGH, 0 means LOW.

Definition at line 45 of file pca9554.h.

◆ pin_count_

size_t esphome::pca9554::PCA9554Component::pin_count_ {8}

protected

number of bits the expander has

Definition at line 39 of file pca9554.h.

◆ reg_width_

size_t esphome::pca9554::PCA9554Component::reg_width_ {1}

protected

width of registers

Definition at line 41 of file pca9554.h.

◆ was_previously_read_

uint16_t esphome::pca9554::PCA9554Component::was_previously_read_ = {0x00}

protected

Flags to check if read previously during this loop.

Definition at line 49 of file pca9554.h.

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

/opt/build/esphome/esphome/components/pca9554/pca9554.h
/opt/build/esphome/esphome/components/pca9554/pca9554.cpp

Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

◆ PCA9554Component()

Member Function Documentation

◆ digital_read()

◆ digital_write()

◆ dump_config()

◆ get_loop_priority()

◆ get_setup_priority()

◆ loop()

◆ pin_mode()

◆ read_inputs_()

◆ set_pin_count()

◆ setup()

◆ write_register_()

Field Documentation

◆ config_mask_

◆ input_mask_

◆ last_error_

◆ output_mask_

◆ pin_count_

◆ reg_width_

◆ was_previously_read_