Struct LinearItem 

#[repr(C)]
pub struct LinearItem {
    pub tr1: ChTr1,
    pub tr2: ChTr2,
    pub br1: ChBr1,
    pub sar: u32,
    pub dar: u32,
    pub llr: ChLlr,
}

A linked-list item for linear GPDMA transfers.

Also works for 2D-capable GPDMA channels, but does not use 2D capabilities.

Fields

tr1: ChTr1

Transfer register 1.

tr2: ChTr2

Transfer register 2.

br1: ChBr1

Block register 2.

sar: u32

Source address register.

dar: u32

Destination address register.

llr: ChLlr

Linked-list address register.

Implementations

impl LinearItem

pub unsafe fn new_read<'d, MW: Word, PW: Word>( request: Request, peri_addr: *mut PW, buf: &'d mut [MW], ) -> Self

Create a new read DMA transfer (peripheral to memory).

pub unsafe fn new_write<'d, MW: Word, PW: Word>( request: Request, buf: &'d [MW], peri_addr: *mut PW, ) -> Self

Create a new write DMA transfer (memory to peripheral).

pub fn link_to(&mut self, next: u16)

Link to the next linear item at the given address.

Enables channel update bits.

pub fn unlink(&mut self)

Unlink the next linear item.

Disables channel update bits.

pub fn set_transfer_complete_mode(&mut self, mode: TransferCompleteMode)

Set the transfer complete event mode (TR2.TCEM) for this item.

In linked-list mode, the channel’s TR2 register is overwritten by each LLI when UT2 is set, so TCEM must be configured per-item.

See TransferCompleteMode for details.

pub fn transfer_count(&self) -> usize

The item’s transfer count in number of words.

Trait Implementations

impl Clone for LinearItem

fn clone(&self) -> LinearItem

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for LinearItem

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for LinearItem

fn default() -> LinearItem

Returns the “default value” for a type.

impl Copy for LinearItem