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Simplify some macros around dmamux peripheral channels.

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This commit is contained in:
Bob McWhirter
2021-07-12 14:53:19 -04:00
parent 0befa10367
commit 6534b63e01
1 changed files with 19 additions and 32 deletions
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51
embassy-stm32/src/dmamux/mod.rs
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@@ -100,54 +100,41 @@ peripherals! {
};
}
#[allow(unused)]
macro_rules! impl_peripheral_channel {
($channel_peri:ident, $direction:ident, $peri:ident, $request:expr) => {
impl sealed::PeripheralChannel<peripherals::$peri, $direction>
for peripherals::$channel_peri
{
fn request(&self) -> u8 {
$request
}
}
impl PeripheralChannel<peripherals::$peri, $direction> for peripherals::$channel_peri {}
};
}
#[allow(unused)]
macro_rules! impl_usart_dma_requests {
($channel_peri:ident, $dma_peri:ident, $channel_num:expr) => {
dma_requests! {
// TODO: DRY this up.
(usart, $peri:ident, RX, $request:expr) => {
impl sealed::PeripheralChannel<peripherals::$peri, P2M> for peripherals::$channel_peri {
fn request(&self) -> u8 {
$request
}
}
impl PeripheralChannel<peripherals::$peri, P2M> for peripherals::$channel_peri { }
impl_peripheral_channel($channel_peri, P2M, $peri, $request);
};
(usart, $peri:ident, TX, $request:expr) => {
impl sealed::PeripheralChannel<peripherals::$peri, M2P> for peripherals::$channel_peri {
fn request(&self) -> u8 {
$request
}
}
impl PeripheralChannel<peripherals::$peri, M2P> for peripherals::$channel_peri { }
impl_peripheral_channel($channel_peri, M2P, $peri, $request);
};
(uart, $peri:ident, TX, $request:expr) => {
impl sealed::PeripheralChannel<peripherals::$peri, P2M> for peripherals::$channel_peri {
fn request(&self) -> u8 {
$request
}
}
impl PeripheralChannel<peripherals::$peri, P2M> for peripherals::$channel_peri { }
impl_peripheral_channel($channel_peri, P2M, $peri, $request);
};
(uart, $peri:ident, RX, $request:expr) => {
impl sealed::PeripheralChannel<peripherals::$peri, M2P> for peripherals::$channel_peri {
fn request(&self) -> u8 {
$request
}
}
impl PeripheralChannel<peripherals::$peri, M2P> for peripherals::$channel_peri { }
impl_peripheral_channel($channel_peri, M2P, $peri, $request);
};
}
};
}