Struct opentitanlib::transport::dediprog::spi::DediprogSpi

pub struct DediprogSpi { /* private fields */ }

Implementations

impl DediprogSpi

pub fn open(inner: Rc<RefCell<Inner>>) -> Result<Self>

Trait Implementations

impl Target for DediprogSpi

fn get_max_transfer_sizes(&self) -> Result<MaxSizes>

Maximum Read and Write data size for run_transaction().

fn set_voltage(&self, voltage: Voltage) -> Result<()>

Sets the Dediprog voltage to value Volts.

fn run_transaction(&self, transaction: &mut [Transfer<'_, '_>]) -> Result<()>

Dediprog has limited support for “plain” SPI transactions. It can only hold the CS asserted across a write then optional read, both of at most 16 bytes.

fn get_eeprom_max_transfer_sizes(&self) -> Result<MaxSizes>

Maximum payload size of Read and Write elements for run_eeprom_transactions().

fn get_transfer_mode(&self) -> Result<TransferMode>

Gets the current SPI transfer mode.

fn set_transfer_mode(&self, _mode: TransferMode) -> Result<()>

Sets the current SPI transfer mode.

fn get_bits_per_word(&self) -> Result<u32>

Gets the current number of bits per word.

fn set_bits_per_word(&self, bits_per_word: u32) -> Result<()>

Sets the current number of bits per word.

fn get_max_speed(&self) -> Result<u32>

Gets the maximum allowed speed of the SPI bus.

fn set_max_speed(&self, frequency: u32) -> Result<()>

Sets the maximum allowed speed of the SPI bus.

fn supports_bidirectional_transfer(&self) -> Result<bool>

Indicates whether Transfer::Both() is supported.

fn get_max_transfer_count(&self) -> Result<usize>

Returns the maximum number of transfers allowed in a single transaction.

fn run_eeprom_transactions( &self, transactions: &mut [Transaction<'_, '_>] ) -> Result<()>

Runs a number of EEPROM/FLASH protocol SPI transactions. Will assert and deassert CS for each transaction.

fn assert_cs(self: Rc<Self>) -> Result<AssertChipSelect>

Assert the CS signal. Uses reference counting, will be deasserted when each and every returned AssertChipSelect object have gone out of scope.

fn set_pins( &self, _serial_clock: Option<&Rc<dyn GpioPin>>, _host_out_device_in: Option<&Rc<dyn GpioPin>>, _host_in_device_out: Option<&Rc<dyn GpioPin>>, _chip_select: Option<&Rc<dyn GpioPin>> ) -> Result<()>

Sets which pins should be used for SPI communication. None value means use the same pin as previously, or the implementation default if never before specified. This call is not supported by most backend transports, and ones that do support it may still have restrictions on which set of pins can be used in which roles.