45 lines
971 B
Rust
45 lines
971 B
Rust
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#![macro_use]
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#[cfg_attr(feature = "_dma_v1", path = "dma_v1.rs")]
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#[cfg_attr(feature = "_dma_v2", path = "dma_v2.rs")]
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mod _version;
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pub use _version::*;
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use crate::pac;
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pub(crate) mod sealed {
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use super::*;
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pub trait Channel {
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fn num(&self) -> u8;
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fn dma_num(&self) -> u8 {
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self.num() / 8
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}
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fn ch_num(&self) -> u8 {
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self.num() % 8
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}
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fn regs(&self) -> pac::dma::Dma {
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match self.dma_num() {
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0 => pac::DMA1,
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_ => pac::DMA2,
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}
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}
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}
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}
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pub trait Channel: sealed::Channel + Sized {}
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macro_rules! impl_dma_channel {
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($type:ident, $dma_num:expr, $ch_num:expr) => {
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impl crate::dma::Channel for peripherals::$type {}
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impl crate::dma::sealed::Channel for peripherals::$type {
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#[inline]
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fn num(&self) -> u8 {
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$dma_num * 8 + $ch_num
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}
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}
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};
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}
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