Struct DmaChannel

pub struct DmaChannel<'a> { /* private fields */ }

Implementations

impl<'a> DmaChannel<'a>

pub fn new(chan_nr: usize) -> DmaChannel<'a>

pub fn set_client(&self, client: &'a dyn DmaClient)

pub fn initialize(&self, config: &DmaConfig)

pub fn transfer_mem_to_mem( &self, src_buf: &'static mut [u8], dst_buf: &'static mut [u8], len: usize, )

Start a DMA transfer where one buffer is copied into another one

pub fn transfer_periph_to_mem( &self, src_reg: *const (), buf: &'static mut [u8], len: usize, )

Start a DMA transfer where the contents of any register will be copied into a provided buffer

pub fn transfer_mem_to_periph( &self, dst_reg: *const (), buf: &'static mut [u8], len: usize, )

Start a DMA transfer where the contents of a buffer will be copied into a register

pub fn transfer_periph_to_mem_pingpong( &self, src_reg: *const (), buf1: &'static mut [u8], len1: usize, buf2: &'static mut [u8], len2: usize, )

Start a ping-pong transfer from a peripheral to a certain location in memory

pub fn provide_new_buffer(&self, buf: &'static mut [u8], len: usize)

Provide a new buffer for a ping-pong transfer

pub fn stop( &self, ) -> (usize, Option<&'static mut [u8]>, Option<&'static mut [u8]>, Option<&'static mut [u8]>, Option<&'static mut [u8]>)

Stop any ongoing DMA transfer

Returnvalues: usize: Number of transferred bytes until the transfer was stopped Option<&’static mut u8>: Option to the primary TX buffer Option<&’static mut u8>: Option to the primary RX buffer Option<&’static mut u8>: Option to the alternate TX buffer Option<&’static mut u8>: Option to the alternate RX buffer