Struct mnemos_d1_core::drivers::smhc::idmac::Descriptor

#[repr(C, align(4))]
pub(super) struct Descriptor {
    configuration: Cfg,
    buff_size: BuffSize,
    buff_addr: u32,
    next_desc: u32,
}

A descriptor that describes how memory needs to transfer data between the SMHC port and host memory. Multiple DMA transfers can be configured by creating a descriptor chain (linked list).

Fields

configuration: Cfg

The descriptor configuration.

buff_size: BuffSize

The size of the data buffer.

buff_addr: u32

The (word) address of the data buffer.

next_desc: u32

The (word) address of the next descriptor, for creating a descriptor chain.

Implementations

impl Descriptor

pub const MAX_LEN: u32 = 8_191u32

Maximum length for arguments to DescriptorBuilder::buff_slice. Must be 13 bits wide or less.

fn addr_to_link(link: NonNull<Self>) -> Result<u32, Error>

Trait Implementations

impl Clone for Descriptor

fn clone(&self) -> Descriptor

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Descriptor

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

Formats the value using the given formatter.