Struct Spi

pub struct Spi<'a, S: SpiMasterDevice<'a>> { /* private fields */ }

Implementations

impl<'a, S: SpiMasterDevice<'a>> Spi<'a, S>

pub fn new( spi_master: &'a S, grants: Grant<App, UpcallCount<1>, AllowRoCount<{ ro_allow::COUNT }>, AllowRwCount<{ rw_allow::COUNT }>>, ) -> Spi<'a, S>

pub fn config_buffers(&self, read: &'static mut [u8], write: &'static mut [u8])

Trait Implementations

impl<'a, S: SpiMasterDevice<'a>> SpiMasterClient for Spi<'a, S>

fn read_write_done( &self, writebuf: SubSliceMut<'static, u8>, readbuf: Option<SubSliceMut<'static, u8>>, status: Result<usize, ErrorCode>, )

Callback issued when a read/write operation finishes.

impl<'a, S: SpiMasterDevice<'a>> SyscallDriver for Spi<'a, S>

fn command( &self, command_num: usize, arg1: usize, _: usize, process_id: ProcessId, ) -> CommandReturn

System call for a process to perform a short synchronous operation or start a long-running split-phase operation (whose completion is signaled with an upcall). Command 0 is a reserved command to detect if a peripheral system call driver is installed and must always return a CommandReturn::success.

fn allocate_grant(&self, processid: ProcessId) -> Result<(), Error>

Request to allocate a capsule’s grant for a specific process.

fn allow_userspace_readable( &self, app: ProcessId, which: usize, slice: ReadWriteProcessBuffer, ) -> Result<ReadWriteProcessBuffer, (ReadWriteProcessBuffer, ErrorCode)>

System call for a process to pass a buffer (a UserspaceReadableProcessBuffer) to the kernel that the kernel can either read or write. The kernel calls this method only after it checks that the entire buffer is within memory the process can both read and write.