Struct capsules_core::low_level_debug::LowLevelDebug

pub struct LowLevelDebug<'u, U: Transmit<'u>> { /* private fields */ }

Implementations

impl<'u, U: Transmit<'u>> LowLevelDebug<'u, U>

pub fn new( buffer: &'static mut [u8], uart: &'u U, grant: Grant<AppData, UpcallCount<0>, AllowRoCount<0>, AllowRwCount<0>> ) -> LowLevelDebug<'u, U>

Trait Implementations

impl<'u, U: Transmit<'u>> SyscallDriver for LowLevelDebug<'u, U>

fn command( &self, minor_num: usize, r2: usize, r3: usize, caller_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.

impl<'u, U: Transmit<'u>> TransmitClient for LowLevelDebug<'u, U>

fn transmitted_buffer( &self, tx_buffer: &'static mut [u8], _tx_len: usize, _rval: Result<(), ErrorCode> )

A call to Transmit::transmit_buffer completed. The Result<(), ErrorCode> indicates whether the buffer was successfully transmitted. A call to transmit_word or transmit_buffer made within this callback SHOULD NOT return BUSY: when this callback is made the UART should be ready to receive another call.

fn transmitted_word(&self, _rval: Result<(), ErrorCode>)

A call to Transmit::transmit_word completed. The Result<(), ErrorCode> indicates whether the word was successfully transmitted. A call to transmit_word or transmit_buffer made within this callback SHOULD NOT return BUSY: when this callback is made the UART should be ready to receive another call.