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use super::word::Word;
use super::{AnyChannel, Request, Transfer, TransferOptions};
use crate::Peri;
/// Convenience wrapper, contains a channel and a request number.
///
/// Commonly used in peripheral drivers that own DMA channels.
pub(crate) struct ChannelAndRequest<'d> {
pub channel: Peri<'d, AnyChannel>,
pub request: Request,
}
impl<'d> ChannelAndRequest<'d> {
pub unsafe fn read<'a, W: Word>(
&'a mut self,
peri_addr: *mut W,
buf: &'a mut [W],
options: TransferOptions,
) -> Transfer<'a> {
Transfer::new_read(self.channel.reborrow(), self.request, peri_addr, buf, options)
}
pub unsafe fn read_raw<'a, MW: Word, PW: Word>(
&'a mut self,
peri_addr: *mut PW,
buf: *mut [MW],
options: TransferOptions,
) -> Transfer<'a> {
Transfer::new_read_raw(self.channel.reborrow(), self.request, peri_addr, buf, options)
}
pub unsafe fn write<'a, W: Word>(
&'a mut self,
buf: &'a [W],
peri_addr: *mut W,
options: TransferOptions,
) -> Transfer<'a> {
Transfer::new_write(self.channel.reborrow(), self.request, buf, peri_addr, options)
}
pub unsafe fn write_raw<'a, MW: Word, PW: Word>(
&'a mut self,
buf: *const [MW],
peri_addr: *mut PW,
options: TransferOptions,
) -> Transfer<'a> {
Transfer::new_write_raw(self.channel.reborrow(), self.request, buf, peri_addr, options)
}
#[allow(dead_code)]
pub unsafe fn write_repeated<'a, W: Word>(
&'a mut self,
repeated: &'a W,
count: usize,
peri_addr: *mut W,
options: TransferOptions,
) -> Transfer<'a> {
Transfer::new_write_repeated(
self.channel.reborrow(),
self.request,
repeated,
count,
peri_addr,
options,
)
}
}
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