Macros
#define	I2C_WRITE 0
	R/W state when write is received.

#define	I2C_READ 1
	R/W state when read is received.

Functions
void	SMBus_PHY_disable (SMBus *smbus)
	Disables the PHY and Data Link layer. More...

void	SMBus_PHY_enable (SMBus *smbus)
	Enables the PHY and Data Link layer. More...

void	SMBus_PHY_targetEnable (SMBus *smbus)
	Enables the PHY and Data Link layer for target operation. More...

void	SMBus_PHY_targetEnableInt (SMBus *smbus)
	Enables the I2C interrupts. More...

void	SMBus_PHY_targetInit (SMBus smbus, I2C_Regs i2cAddr)
	Initializes the I2C Target module supporting SMBus functionality. More...

SMBus_State	SMBus_PHY_targetProcessInt (SMBus *smbus)
	I2C Interrupt Service routine for SMBus Target. More...

void	SMBus_PHY_controllerEnable (SMBus *smbus)
	Enables the PHY and Data Link layer. More...

void	SMBus_PHY_controllerEnableInt (SMBus *smbus)
	Enables the I2C interrupts. More...

void	SMBus_PHY_controllerInit (SMBus smbus, I2C_Regs i2cAddr, uint32_t busClk)
	Initializes the I2C Controller module supporting SMBus functionality. More...

void	SMBus_PHY_controllerSendStop (SMBus *smbus)
	Generate Stop condition if it hasn't been sent. More...

void	SMBus_PHY_controllerStartTx (SMBus *smbus, uint8_t targetaddr, uint16_t length, SMBus_Stop stopFlag, uint8_t setPEC)
	Start a TX transfer. More...

void	SMBus_PHY_controllerStartRx (SMBus *smbus, uint8_t targetaddr, uint16_t length, SMBus_Start startFlag, SMBus_Stop stopFlag, SMBus_Auto_Ack ackFlag, uint8_t setPEC)
	Start a RX transfer. More...

SMBus_State	SMBus_PHY_controllerProcessInt (SMBus *smbus)
	I2C Interrupt Service routine for SMBus Controller. More...

void	SMBus_PHY_controllerEnableHostNotify (SMBus *smbus)
	Enable the hardware functionality to respond to Host Default address (0b000_1000) More...

void	SMBus_PHY_controllerDisableHostNotify (SMBus *smbus)
	Disable the hardware functionality to respond to Host Default address (0b000_1000) More...

Detailed Description

Function Documentation

§ SMBus_PHY_disable()

void SMBus_PHY_disable ( SMBus * smbus )

Disables the PHY and Data Link layer.

Parameters

*smbus Pointer to SMBus structure

Returns: None

References SMBus_Ctrl::bits, SMBus::ctrl, SMBus::phy, SMBus_Ctrl::phyEn, and SMBus_Phy::SMBus_Phy_i2cBase.

Referenced by SMBus_NWK_controllerReset(), SMBus_NWK_targetProcessTimeout(), SMBus_PHY_controllerEnable(), and SMBus_PHY_targetEnable().

§ SMBus_PHY_enable()

void SMBus_PHY_enable ( SMBus * smbus )

Enables the PHY and Data Link layer.

Parameters

*smbus Pointer to SMBus structure

Returns: None

References SMBus_Ctrl::bits, SMBus_Ctrl::controller, SMBus::ctrl, SMBus_PHY_controllerEnable(), and SMBus_PHY_targetEnable().

§ SMBus_PHY_targetEnable()

void SMBus_PHY_targetEnable ( SMBus * smbus )

Enables the PHY and Data Link layer for target operation.

Parameters

*smbus Pointer to SMBus structure

Returns: None

References SMBus_Ctrl::bits, SMBus::ctrl, SMBus_Ctrl::intEn, SMBus::ownTargetAddr, SMBus::phy, SMBus_Ctrl::phyEn, SMBus_PHY_disable(), SMBus_Phy::SMBus_Phy_i2cBase, and SMBus_targetEnableInt().

Referenced by SMBus_NWK_targetProcessTimeout(), and SMBus_PHY_enable().

§ SMBus_PHY_targetEnableInt()

void SMBus_PHY_targetEnableInt ( SMBus * smbus )

Enables the I2C interrupts.

This function enables the I2C Start ,Stop, RX ,TX, Timeout interrupts. SMBus_PHY_targetInit() must be called before this function.

Parameters

*smbus Pointer to SMBus structure

Returns: None

References SMBus_Ctrl::bits, SMBus::ctrl, SMBus_Ctrl::intEn, SMBus::phy, and SMBus_Phy::SMBus_Phy_i2cBase.

Referenced by SMBus_targetEnableInt().

§ SMBus_PHY_targetInit()

void SMBus_PHY_targetInit	(	SMBus *	smbus,
		I2C_Regs *	i2cAddr
	)

Initializes the I2C Target module supporting SMBus functionality.

Resets and then configures the I2C for SMBus support
I2C is enabled using Automatic ACK and Target address is initialized to 0x00
Call SMBus_targetSetAddress() in order to set the Target address
Parameters

*smbus Pointer to SMBus structure

i2cAddr Base address of I2C module

References SMBus::phy, and SMBus_Phy::SMBus_Phy_i2cBase.

Referenced by SMBus_targetInit().

§ SMBus_PHY_targetProcessInt()

SMBus_State SMBus_PHY_targetProcessInt ( SMBus * smbus )

I2C Interrupt Service routine for SMBus Target.

Handles the interrupts from I2C module and passes the information to the network layer. Should be called by application when acting as a target and an I2C interrupt is detected. Note that a target can also act as Host in some scenarios (like Host notify), so the ISR needs to handle such cases.

Parameters

smbus Pointer to SMBus structure

Returns: The new state of Target (see SMBus_targetProcessInt())

References SMBus_Status::bits, SMBus_Status::pecErr, SMBus::phy, SMBus_NWK_controllerProcessNACK(), SMBus_NWK_controllerProcessStop(), SMBus_NWK_controllerProcessTx(), SMBus_NWK_controllerTxDone(), SMBus_NWK_targetProcessRx(), SMBus_NWK_targetProcessStart(), SMBus_NWK_targetProcessStop(), SMBus_NWK_targetProcessTx(), SMBus_Phy::SMBus_Phy_i2cBase, SMBus_State_PECError, SMBus_State_Target_NTR, and SMBus::status.

Referenced by SMBus_targetProcessInt().

§ SMBus_PHY_controllerEnable()

void SMBus_PHY_controllerEnable ( SMBus * smbus )

Enables the PHY and Data Link layer.

Parameters

*smbus Pointer to SMBus structure

Returns: None

References SMBus_Ctrl::bits, SMBus::ctrl, SMBus_Ctrl::intEn, SMBus::phy, SMBus_Ctrl::phyEn, SMBus_controllerEnableInt(), SMBus_PHY_disable(), and SMBus_Phy::SMBus_Phy_i2cBase.

Referenced by SMBus_NWK_controllerReset(), and SMBus_PHY_enable().

§ SMBus_PHY_controllerEnableInt()

void SMBus_PHY_controllerEnableInt ( SMBus * smbus )

Enables the I2C interrupts.

This function enables the I2C Start, Stop, RX,TX, Timeout interrupts. SMBus_PHY_targetInit() must be called before this function.

Parameters

*smbus Pointer to SMBus structure

Returns: None

References SMBus_Ctrl::bits, SMBus::ctrl, SMBus_Ctrl::intEn, SMBus::phy, and SMBus_Phy::SMBus_Phy_i2cBase.

Referenced by SMBus_controllerEnableInt().

§ SMBus_PHY_controllerInit()

void SMBus_PHY_controllerInit	(	SMBus *	smbus,
		I2C_Regs *	i2cAddr,
		uint32_t	busClk
	)

Initializes the I2C Controller module supporting SMBus functionality.

Resets and then configures the I2C for SMBus support
I2C is enabled using Automatic ACK and Target address is initialized to 0x00
Parameters

smbus Pointer to SMBus structure

i2cAddr Base address of I2C module

busClk SMCLK Frequency (used for I2C)

Returns
None

References SMBus::ownTargetAddr, SMBus::phy, and SMBus_Phy::SMBus_Phy_i2cBase.

Referenced by SMBus_controllerInit().

§ SMBus_PHY_controllerSendStop()

void SMBus_PHY_controllerSendStop ( SMBus * smbus )

Generate Stop condition if it hasn't been sent.

Parameters

smbus Pointer to SMBus structure

Returns: None

References SMBus::phy, and SMBus_Phy::SMBus_Phy_i2cBase.

Referenced by SMBus_NWK_controllerProcessNACK(), and SMBus_NWK_controllerProcessRx().

§ SMBus_PHY_controllerStartTx()

void SMBus_PHY_controllerStartTx	(	SMBus *	smbus,
		uint8_t	targetaddr,
		uint16_t	length,
		SMBus_Stop	stopFlag,
		uint8_t	setPEC
	)

Start a TX transfer.

Parameters

smbus	Pointer to SMBus structure
targetaddr	Target target address
length	Number of bytes to send, not including the address byte
stopFlag	Indicates whether the HW will generate stop condition
setPEC	Packet Error Checking (PEC) count value

Returns: None

§ SMBus_PHY_controllerStartRx()

void SMBus_PHY_controllerStartRx	(	SMBus *	smbus,
		uint8_t	targetaddr,
		uint16_t	length,
		SMBus_Start	startFlag,
		SMBus_Stop	stopFlag,
		SMBus_Auto_Ack	ackFlag,
		uint8_t	setPEC
	)

Start a RX transfer.

Parameters

smbus	Pointer to SMBus structure
targetaddr	Target target address
length	Number of bytes to send, not including the address byte
stopFlag	Indicates whether the HW will generate stop condition
startFlag	Indicates whether the HW will generate start condition
ackFlag	Indicates whether the HW will auto ack the last byte
setPEC	Packet Error Checking (PEC) count value

Returns: None

§ SMBus_PHY_controllerProcessInt()

SMBus_State SMBus_PHY_controllerProcessInt ( SMBus * smbus )

I2C Interrupt Service routine for SMBus Controller.

Handles the interrupts from I2C module and passes the information to the network layer. Should be called by application when acting as a controller and an I2C interrupt is detected. Note that a controller can also act as target in some scenarios (like Host notify), so the ISR needs to handle such cases.

Parameters

smbus Pointer to SMBus structure

Returns: The new state of controller (see SMBus_controllerProcessInt())

References SMBus::phy, SMBus_NWK_controllerProcessNACK(), SMBus_NWK_controllerProcessRx(), SMBus_NWK_controllerProcessStop(), SMBus_NWK_controllerProcessTimeout(), SMBus_NWK_controllerProcessTx(), SMBus_NWK_controllerTxDone(), SMBus_NWK_targetProcessRx(), SMBus_NWK_targetProcessStart(), SMBus_NWK_targetProcessStop(), and SMBus_Phy::SMBus_Phy_i2cBase.

Referenced by SMBus_controllerProcessInt().

§ SMBus_PHY_controllerEnableHostNotify()

void SMBus_PHY_controllerEnableHostNotify ( SMBus * smbus )

Enable the hardware functionality to respond to Host Default address (0b000_1000)

Parameters

smbus Pointer to SMBus structure

Returns: The new state of controller (see SMBus_controllerProcessInt())

References SMBus::phy, and SMBus_Phy::SMBus_Phy_i2cBase.

Referenced by SMBus_controllerEnableHostNotify().

§ SMBus_PHY_controllerDisableHostNotify()

void SMBus_PHY_controllerDisableHostNotify ( SMBus * smbus )

Disable the hardware functionality to respond to Host Default address (0b000_1000)

Parameters

smbus Pointer to SMBus structure

Returns: The new state of controller (see SMBus_controllerProcessInt())

References SMBus::phy, and SMBus_Phy::SMBus_Phy_i2cBase.

Referenced by SMBus_controllerDisableHostNotify().

*smbus	Pointer to SMBus structure
i2cAddr	Base address of I2C module

Macros

Functions

Detailed Description

Function Documentation

§ SMBus_PHY_disable()

§ SMBus_PHY_enable()

§ SMBus_PHY_targetEnable()

§ SMBus_PHY_targetEnableInt()

§ SMBus_PHY_targetInit()

§ SMBus_PHY_targetProcessInt()

§ SMBus_PHY_controllerEnable()

§ SMBus_PHY_controllerEnableInt()

§ SMBus_PHY_controllerInit()

§ SMBus_PHY_controllerSendStop()

§ SMBus_PHY_controllerStartTx()

§ SMBus_PHY_controllerStartRx()

§ SMBus_PHY_controllerProcessInt()

§ SMBus_PHY_controllerEnableHostNotify()

§ SMBus_PHY_controllerDisableHostNotify()