Struct I2cDriver

pub struct I2cDriver { /* private fields */ }

Implementation of the low level interface via Google I2C protocol.

Implementations

impl I2cDriver

pub fn new(i2c: Rc<dyn Bus>, use_gsc_ready: bool) -> Result<Self>

pub fn addr(reg: Register) -> Option<u8>

Numerical TPM register address as used in Google I2C protocol.

Trait Implementations

impl Driver for I2cDriver

fn read_register(&self, register: Register, data: &mut [u8]) -> Result<()>

Read from the given TPM register, number of bytes to read given by length of data slice.

fn write_register(&self, register: Register, data: &[u8]) -> Result<()>

Write to the given TPM register.

fn init(&self) -> Result<()>

Initialize the TPM by claiming the access register.

fn execute_command(&self, cmd: &[u8]) -> Result<Vec<u8>>

Execute a TPM command and return the result as a Vec<u8> or time out.

fn read_status(&self) -> Result<TpmStatus>

Fetches the current status.

fn poll_for_data_available(&self) -> Result<TpmStatus>

Poll the status register until the status is valid and data is available or time out.

fn poll_for_ready(&self) -> Result<TpmStatus>

Poll the status register until the status is valid and the tpm is ready or time out.