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Remove some unused traits.

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Move some fns to associated consts.
This commit is contained in:
Bob McWhirter
2021-07-13 09:50:42 -04:00
parent c39ac201ff
commit 92247369e7
3 changed files with 58 additions and 61 deletions
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86
embassy-stm32/src/dmamux/mod.rs
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@ -25,79 +25,65 @@ pub(crate) unsafe fn configure_dmamux(
pub(crate) mod sealed {
use super::*;
pub trait DmaMux {
fn regs() -> pac::dmamux::Dmamux;
}
pub trait Channel {
fn dmamux_regs(&self) -> pac::dmamux::Dmamux;
fn dmamux_ch_num(&self) -> u8;
const DMAMUX_CH_NUM: u8;
const DMAMUX_REGS: pac::dmamux::Dmamux;
}
pub trait PeripheralChannel<PERI, OP>: Channel {
fn request(&self) -> u8;
const REQUEST: u8;
}
}
pub trait DmaMux: sealed::DmaMux {}
pub trait Channel: sealed::Channel {}
pub trait PeripheralChannel<PERI, OP>: sealed::Channel {}
pub struct P2M;
pub struct M2P;
#[allow(unused)]
macro_rules! impl_dma_channel {
($channel_peri:ident, $dmamux_peri:ident, $channel_num:expr, $dma_peri: ident, $dma_num:expr) => {
impl Channel for peripherals::$channel_peri {}
impl sealed::Channel for peripherals::$channel_peri {
fn dmamux_regs(&self) -> pac::dmamux::Dmamux {
crate::pac::$dmamux_peri
}
fn dmamux_ch_num(&self) -> u8 {
($dma_num * 8) + $channel_num
}
}
macro_rules! dma_num {
(DMA1) => {
0
};
(DMA2) => {
1
};
(BDMA) => {
0
};
}
macro_rules! impl_dmamux {
($peri:ident) => {
impl sealed::DmaMux for peripherals::$peri {
fn regs() -> pac::dmamux::Dmamux {
pac::$peri
}
macro_rules! dmamux_peri {
(DMA1) => {
crate::pac::DMAMUX1
};
(DMA2) => {
crate::pac::DMAMUX1
};
(BDMA) => {
crate::pac::DMAMUX1
};
}
#[allow(unused)]
macro_rules! impl_dma_channel {
($channel_peri:ident, $channel_num:expr, $dma_peri: ident) => {
impl Channel for peripherals::$channel_peri {}
impl sealed::Channel for peripherals::$channel_peri {
const DMAMUX_CH_NUM: u8 = (dma_num!($dma_peri) * 8) + $channel_num;
const DMAMUX_REGS: pac::dmamux::Dmamux = dmamux_peri!($dma_peri);
}
impl DmaMux for peripherals::$peri {}
};
}
peripherals! {
(bdma, DMA1) => {
(bdma, $peri:ident) => {
bdma_channels! {
($channel_peri:ident, DMA1, $channel_num:expr) => {
impl_dma_channel!($channel_peri, DMAMUX1, $channel_num, DMA1, 0);
($channel_peri:ident, $peri, $channel_num:expr) => {
impl_dma_channel!($channel_peri, $channel_num, $peri);
};
}
};
(bdma, DMA2) => {
bdma_channels! {
($channel_peri:ident, DMA2, $channel_num:expr) => {
impl_dma_channel!($channel_peri, DMAMUX1, $channel_num, DMA2, 1);
};
}
};
(bdma, BDMA) => {
bdma_channels! {
($channel_peri:ident, BDMA, $channel_num:expr) => {
impl_dma_channel!($channel_peri, DMAMUX1, $channel_num, DMA2, 1);
};
}
};
(dmamux, DMAMUX1) => {
impl_dmamux!(DMAMUX1);
};
}
#[allow(unused)]
@ -106,9 +92,7 @@ macro_rules! impl_peripheral_channel {
impl sealed::PeripheralChannel<peripherals::$peri, $direction>
for peripherals::$channel_peri
{
fn request(&self) -> u8 {
$request
}
const REQUEST: u8 = $request;
}
impl PeripheralChannel<peripherals::$peri, $direction> for peripherals::$channel_peri {}