Struct opentitanlib::tpm::SpiDriver

pub struct SpiDriver { /* private fields */ }

Implementation of the low level interface via standard SPI protocol.

Implementations

impl SpiDriver

pub fn new( spi: Rc<dyn Target>, gsc_ready_pin: Option<(Rc<dyn GpioPin>, Rc<dyn GpioMonitoring>)> ) -> Result<Self>

pub fn addr(register: Register) -> u16

Numerical TPM register address as used in SPI protocol.

Trait Implementations

impl Driver for SpiDriver

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.

impl Drop for SpiDriver

fn drop(&mut self)

Executes the destructor for this type.