The WeikaiChannel class is used to implement all the virtual methods of the ESPHome uart::UARTComponent virtual class. More...

#include <weikai.h>

Inheritance diagram for esphome::weikai::WeikaiChannel:

Public Member Functions
void	set_parent (WeikaiComponent *parent)
	We belongs to this WeikaiComponent.

void	set_channel (uint8_t channel)
	Sets the channel number.

void	set_channel_name (std::string &&name)
	The name as generated by the Python code generator.

const char *	get_channel_name ()
	Get the channel name.

virtual void	setup_channel ()
	Setup the channel.

virtual void	dump_channel ()
	dump channel information

WeikaiRegister &	reg (uint8_t reg)
	Factory method to create a WeikaiRegister proxy object.

void	write_array (const uint8_t *buffer, size_t length) override
	Writes a specified number of bytes to a serial port.

bool	read_array (uint8_t *buffer, size_t length) override
	Reads a specified number of bytes from a serial port.

bool	peek_byte (uint8_t *buffer) override
	Reads the first byte in FIFO without removing it.

int	available () override
	Returns the number of bytes in the receive buffer.

void	flush () override
	Flush the output fifo.

Public Member Functions inherited from esphome::uart::UARTComponent
void	write_array (const std::vector< uint8_t > &data)

void	write_byte (uint8_t data)

void	write_str (const char *str)

bool	read_byte (uint8_t *data)

void	set_tx_pin (InternalGPIOPin *tx_pin)

void	set_rx_pin (InternalGPIOPin *rx_pin)

void	set_rx_buffer_size (size_t rx_buffer_size)

size_t	get_rx_buffer_size ()

void	set_stop_bits (uint8_t stop_bits)

uint8_t	get_stop_bits () const

void	set_data_bits (uint8_t data_bits)

uint8_t	get_data_bits () const

void	set_parity (UARTParityOptions parity)

UARTParityOptions	get_parity () const

void	set_baud_rate (uint32_t baud_rate)

uint32_t	get_baud_rate () const

virtual void	load_settings (bool dump_config)
	Load the UART settings.

virtual void	load_settings ()
	Load the UART settings.

void	add_debug_callback (std::function< void(UARTDirection, uint8_t)> &&callback)

Protected Member Functions
void	check_logger_conflict () override
	this cannot happen with external uart therefore we do nothing

void	reset_fifo_ ()
	reset the weikai internal FIFO

void	set_line_param_ ()
	set the line parameters

void	set_baudrate_ ()
	set the baud rate

size_t	rx_in_fifo_ ()
	Returns the number of bytes in the receive fifo.

size_t	tx_in_fifo_ ()
	Returns the number of bytes in the transmit fifo.

bool	tx_fifo_is_not_empty_ ()
	test if transmit buffer is not empty in the status register (optimization)

size_t	xfer_fifo_to_buffer_ ()
	transfer bytes from the weikai internal FIFO to the buffer (if any)

virtual bool	check_channel_down ()
	check if channel is alive


void	uart_send_test_ (char *message)
	Test the write_array() method.

bool	uart_receive_test_ (char *message)
	Test the read_array() method.

Protected Member Functions inherited from esphome::uart::UARTComponent
bool	check_read_timeout_ (size_t len=1)

Protected Attributes
WKRingBuffer< uint8_t, RING_BUFFER_SIZE >	receive_buffer_
	the buffer where we store temporarily the bytes received

WeikaiComponent *	parent_
	our WK2168component parent

uint8_t	channel_
	our Channel number

uint8_t	data_
	a one byte buffer for register read storage

std::string	name_
	name of the entity

Protected Attributes inherited from esphome::uart::UARTComponent
InternalGPIOPin *	tx_pin_

InternalGPIOPin *	rx_pin_

size_t	rx_buffer_size_

uint32_t	baud_rate_

uint8_t	stop_bits_

uint8_t	data_bits_

UARTParityOptions	parity_

CallbackManager< void(UARTDirection, uint8_t)>	debug_callback_ {}

Detailed Description

The WeikaiChannel class is used to implement all the virtual methods of the ESPHome uart::UARTComponent virtual class.

This class is common to the different members of the Weikai components family and therefore avoid code duplication.

Definition at line 298 of file weikai.h.

Member Function Documentation

◆ available()

int esphome::weikai::WeikaiChannel::available ( )

overridevirtual

Returns the number of bytes in the receive buffer.

Returns: the number of bytes available in the receiver fifo

Implements esphome::uart::UARTComponent.

Definition at line 399 of file weikai.cpp.

◆ check_channel_down()

bool esphome::weikai::WeikaiChannel::check_channel_down ( )

protectedvirtual

check if channel is alive

Returns: true if OK

Definition at line 373 of file weikai.cpp.

◆ check_logger_conflict()

void esphome::weikai::WeikaiChannel::check_logger_conflict ( )

inlineoverrideprotectedvirtual

this cannot happen with external uart therefore we do nothing

Implements esphome::uart::UARTComponent.

Definition at line 390 of file weikai.h.

◆ dump_channel()

void esphome::weikai::WeikaiChannel::dump_channel ( )

virtual

dump channel information

Definition at line 269 of file weikai.cpp.

◆ flush()

void esphome::weikai::WeikaiChannel::flush ( )

overridevirtual

Flush the output fifo.

If we refer to Serial.flush() in Arduino it says: ** Waits for the transmission of outgoing serial data to complete. (Prior to Arduino 1.0, this the method was removing any buffered incoming serial data.). ** Therefore we wait until all bytes are gone with a timeout of 100 ms

Implements esphome::uart::UARTComponent.

Definition at line 431 of file weikai.cpp.

◆ get_channel_name()

const char * esphome::weikai::WeikaiChannel::get_channel_name ( )

inline

Get the channel name.

Returns: the name

Definition at line 317 of file weikai.h.

◆ peek_byte()

bool esphome::weikai::WeikaiChannel::peek_byte ( uint8_t * buffer )

overridevirtual

Reads the first byte in FIFO without removing it.

Parameters

buffer pointer to the byte

Returns: true if succeed reading one byte, false if no character available

This method returns the next byte from receiving buffer without removing it from the internal fifo. It returns true if a character is available and has been read, false otherwise.

Implements esphome::uart::UARTComponent.

Definition at line 392 of file weikai.cpp.

◆ read_array()

bool esphome::weikai::WeikaiChannel::read_array	(	uint8_t *	buffer,
		size_t	length )

overridevirtual

Reads a specified number of bytes from a serial port.

Parameters

buffer	buffer to store the bytes
length	number of bytes to read

Returns: true if succeed, false otherwise

Typical usage:

// ...
auto length = available();
uint8_t buffer[128];
if (length > 0) {
  auto status = read_array(&buffer, length)
  // test status ...
}

Implements esphome::uart::UARTComponent.

Definition at line 406 of file weikai.cpp.

◆ reg()

WeikaiRegister & esphome::weikai::WeikaiChannel::reg ( uint8_t reg )

inline

Factory method to create a WeikaiRegister proxy object.

Parameters

reg	address of the register

Returns: a reference to WeikaiRegister

Definition at line 328 of file weikai.h.

◆ reset_fifo_()

void esphome::weikai::WeikaiChannel::reset_fifo_ ( )

protected

reset the weikai internal FIFO

Definition at line 277 of file weikai.cpp.

◆ rx_in_fifo_()

size_t esphome::weikai::WeikaiChannel::rx_in_fifo_ ( )

protected

Returns the number of bytes in the receive fifo.

Returns: the number of bytes in the fifo

Definition at line 345 of file weikai.cpp.

◆ set_baudrate_()

void esphome::weikai::WeikaiChannel::set_baudrate_ ( )

protected

set the baud rate

Definition at line 304 of file weikai.cpp.

◆ set_channel()

void esphome::weikai::WeikaiChannel::set_channel ( uint8_t channel )

inline

Sets the channel number.

Parameters

channel number

Definition at line 309 of file weikai.h.

◆ set_channel_name()

void esphome::weikai::WeikaiChannel::set_channel_name ( std::string && name )

inline

The name as generated by the Python code generator.

Parameters

name	of the channel

Definition at line 313 of file weikai.h.

◆ set_line_param_()

void esphome::weikai::WeikaiChannel::set_line_param_ ( )

protected

set the line parameters

Definition at line 284 of file weikai.cpp.

◆ set_parent()

void esphome::weikai::WeikaiChannel::set_parent ( WeikaiComponent * parent )

inline

We belongs to this WeikaiComponent.

Parameters

parent pointer to the component we belongs to

Definition at line 302 of file weikai.h.

◆ setup_channel()

void esphome::weikai::WeikaiChannel::setup_channel ( )

virtual

Setup the channel.

Definition at line 257 of file weikai.cpp.

◆ tx_fifo_is_not_empty_()

bool esphome::weikai::WeikaiChannel::tx_fifo_is_not_empty_ ( )

inlineprotected

test if transmit buffer is not empty in the status register (optimization)

Returns: true if not emptygroup test_

Definition at line 330 of file weikai.cpp.

◆ tx_in_fifo_()

size_t esphome::weikai::WeikaiChannel::tx_in_fifo_ ( )

protected

Returns the number of bytes in the transmit fifo.

Returns: the number of bytes in the fifo

Definition at line 332 of file weikai.cpp.

◆ write_array()

void esphome::weikai::WeikaiChannel::write_array	(	const uint8_t *	buffer,
		size_t	length )

overridevirtual

Writes a specified number of bytes to a serial port.

Parameters

buffer	pointer to the buffer
length	number of bytes to write

This method sends 'length' characters from the buffer to the serial line. Unfortunately (unlike the Arduino equivalent) this method does not return any flag and therefore it is not possible to know if any/all bytes have been transmitted correctly. Another problem is that it is not possible to know ahead of time how many bytes we can safely send as there is no tx_available() method provided! To avoid overrun when using the write method you can use the flush() method to wait until the transmit fifo is empty.
Typical usage could be:

// ...
uint8_t buffer[128];
// ...
write_array(&buffer, length);
flush();
// ...

Implements esphome::uart::UARTComponent.

Definition at line 423 of file weikai.cpp.

◆ xfer_fifo_to_buffer_()

size_t esphome::weikai::WeikaiChannel::xfer_fifo_to_buffer_ ( )

protected

transfer bytes from the weikai internal FIFO to the buffer (if any)

Returns: number of bytes transferred

Definition at line 442 of file weikai.cpp.

Field Documentation

◆ channel_

uint8_t esphome::weikai::WeikaiChannel::channel_

protected

our Channel number

Definition at line 439 of file weikai.h.

◆ data_

uint8_t esphome::weikai::WeikaiChannel::data_

protected

a one byte buffer for register read storage

Definition at line 440 of file weikai.h.

◆ name_

std::string esphome::weikai::WeikaiChannel::name_

protected

name of the entity

Definition at line 441 of file weikai.h.

◆ parent_

WeikaiComponent* esphome::weikai::WeikaiChannel::parent_

protected

our WK2168component parent

Definition at line 438 of file weikai.h.

◆ receive_buffer_

WKRingBuffer<uint8_t, RING_BUFFER_SIZE> esphome::weikai::WeikaiChannel::receive_buffer_

protected

the buffer where we store temporarily the bytes received

Definition at line 437 of file weikai.h.

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

esphome/components/weikai/weikai.h
esphome/components/weikai/weikai.cpp

Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description

Member Function Documentation

◆ available()

◆ check_channel_down()

◆ check_logger_conflict()

◆ dump_channel()

◆ flush()

◆ get_channel_name()

◆ peek_byte()

◆ read_array()

◆ reg()

◆ reset_fifo_()

◆ rx_in_fifo_()

◆ set_baudrate_()

◆ set_channel()

◆ set_channel_name()

◆ set_line_param_()

◆ set_parent()

◆ setup_channel()

◆ tx_fifo_is_not_empty_()

◆ tx_in_fifo_()

◆ write_array()

◆ xfer_fifo_to_buffer_()

Field Documentation

◆ channel_

◆ data_

◆ name_

◆ parent_

◆ receive_buffer_