comms.cpp File Reference

#include "globals.h"
#include "comms.h"
#include "comms_secondary.h"
#include "storage.h"
#include "maths.h"
#include "utilities.h"
#include "decoders.h"
#include "TS_CommandButtonHandler.h"
#include "pages.h"
#include "page_crc.h"
#include "logger.h"
#include "comms_legacy.h"
#include "src/FastCRC/FastCRC.h"
#include <avr/pgmspace.h>

Typedefs
using	crc_t = uint32_t

Functions
void	processSerialCommand (void)
	Processes a message once it has been fully received.
void	sendToothLog (void)
	Should be called when serialStatusFlag == SERIAL_TRANSMIT_TOOTH_INPROGRESS,.
void	sendCompositeLog (void)
	Should be called when serialStatusFlag == LOG_SEND_COMPOSITE.
bool	isRxTimeout (void)
	Has the current receive operation timed out?
void	flushRXbuffer (void)
	Flush all remaining bytes from the rx serial buffer.
static uint32_t	reverse_bytes (uint32_t i)
	Reverse the byte order of a uint32_t.
void	writeByteReliableBlocking (byte value)
static void	readSerialTimeout (char *buffer, size_t length)
	Read from the serial port into the supplied buffer.
template<typename TIntegral >
static TIntegral	readSerialIntegralTimeout (void)
	Reads an integral type, timing out if necessary.
static uint32_t	serialWrite (uint32_t value)
	Write a uint32_t to Serial.
static void	serialWrite (uint16_t value)
	Write a uint16_t to Serial.
static uint16_t	writeNonBlocking (const byte *buffer, size_t length)
	Send as much data as possible without blocking the caller.
static size_t	writeNonBlocking (size_t start, uint32_t value)
	Write a uint32_t to Serial without blocking the caller.
static uint16_t	sendBufferAndCrcNonBlocking (const byte *buffer, size_t start, size_t length)
	Send the buffer, followed by it's CRC.
static void	sendSerialPayloadNonBlocking (uint16_t payloadLength)
	Start sending the shared serialPayload buffer.
static void	sendReturnCodeMsg (byte returnCode)
	Send a message to TS containing only a return code.
static bool	updatePageValues (uint8_t pageNum, uint16_t offset, const byte *buffer, uint16_t length)
	Update a pages contents from a buffer.
static void	loadPageValuesToBuffer (uint8_t pageNum, uint16_t offset, byte *buffer, uint16_t length)
	Loads a pages contents into a buffer.
static void	generateLiveValues (uint16_t offset, uint16_t packetLength)
	Send a status record back to tuning/logging SW. This will "live" information from currentStatus struct.
static void	loadO2CalibrationChunk (uint16_t offset, uint16_t chunkSize)
	Update the oxygen sensor table from serialPayload.
static uint16_t	toTemperature (byte lo, byte hi)
	Convert 2 bytes into an offset temperature in degrees Celsius.
static void	processTemperatureCalibrationTableUpdate (uint16_t calibrationLength, uint8_t calibrationPage, uint16_t *values, uint16_t *bins)
	Update a temperature calibration table from serialPayload.
void	serialReceive (void)
	The serial receive pump. Should be called whenever the serial port has data available to read.
void	serialTransmit (void)
	The serial transmit pump. Should be called when serialStatusFlag indicates a transmit operation is in progress.

Variables
static constexpr byte	SERIAL_RC_OK = 0x00U
	Success.
static constexpr byte	SERIAL_RC_REALTIME = 0x01U
	Unused.
static constexpr byte	SERIAL_RC_PAGE = 0x02U
	Unused.
static constexpr byte	SERIAL_RC_BURN_OK = 0x04U
	EEPROM write succeeded.
static constexpr byte	SERIAL_RC_TIMEOUT = 0x80U
	Timeout error.
static constexpr byte	SERIAL_RC_CRC_ERR = 0x82U
	CRC mismatch.
static constexpr byte	SERIAL_RC_UKWN_ERR = 0x83U
	Unknown command.
static constexpr byte	SERIAL_RC_RANGE_ERR = 0x84U
	Incorrect range. TS will not retry command.
static constexpr byte	SERIAL_RC_BUSY_ERR = 0x85U
	TS will wait and retry.
static constexpr uint8_t	SEND_OUTPUT_CHANNELS = 48U
	Code for the "send output channels command".
static constexpr byte	serialVersion [] = {SERIAL_RC_OK, '0', '0', '2'}
static constexpr byte	canId [] = {SERIAL_RC_OK, 0}
static constexpr byte	codeVersion [] = { SERIAL_RC_OK, 's','p','e','e','d','u','i','n','o',' ','2','0','2','5','0','4','-','d','e','v'}
static constexpr byte	productString [] = { SERIAL_RC_OK, 'S', 'p', 'e', 'e', 'd', 'u', 'i', 'n', 'o', ' ', '2', '0', '2', '5', '.', '0', '4', '-', 'd', 'e', 'v'}
static constexpr byte	testCommsResponse [] = { SERIAL_RC_OK, 255 }
static uint16_t	serialBytesRxTx = 0
	The number of bytes received or transmitted to date during nonblocking I/O.
static constexpr uint16_t	SERIAL_TIMEOUT = 400
	Timeout threshold in milliseconds.
uint32_t	serialReceiveStartTime = 0
	The time in milliseconds at which the serial receive started. Used for calculating whether a timeout has occurred.
static FastCRC32	CRC32_serial
	Support accumulation of a CRC during non-blocking operations.
static FastCRC32	CRC32_calibration
	Support accumulation of a CRC during calibration loads. Must be a separate instance to CRC32_serial due to calibration data being sent in multiple packets.
static uint8_t	serialPayload [SERIAL_BUFFER_SIZE]
	Serial payload buffer.
static uint16_t	serialPayloadLength = 0
	How many bytes in serialPayload were received or sent.
Stream *	pPrimarySerial

Detailed Description

Process Incoming and outgoing serial communications.