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Regs type alias

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This commit is contained in:
Grant Miller 2021-12-07 00:48:44 -06:00
parent b06658c195
commit e75cb1a564
1 changed files with 5 additions and 3 deletions
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8
embassy-stm32/src/spi/mod.rs
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@ -22,6 +22,8 @@ use embassy_traits::spi as traits;
mod _version; mod _version;
pub use _version::*; pub use _version::*;
type Regs = &'static crate::pac::spi::Spi;
#[derive(Debug)] #[derive(Debug)]
#[cfg_attr(feature = "defmt", derive(defmt::Format))] #[cfg_attr(feature = "defmt", derive(defmt::Format))]
pub enum Error { pub enum Error {
@ -395,7 +397,7 @@ fn check_error_flags(sr: regs::Sr) -> Result<(), Error> {
Ok(()) Ok(())
} }
fn spin_until_tx_ready(regs: &'static crate::pac::spi::Spi) -> Result<(), Error> { fn spin_until_tx_ready(regs: Regs) -> Result<(), Error> {
loop { loop {
let sr = unsafe { regs.sr().read() }; let sr = unsafe { regs.sr().read() };
@ -412,7 +414,7 @@ fn spin_until_tx_ready(regs: &'static crate::pac::spi::Spi) -> Result<(), Error>
} }
} }
fn spin_until_rx_ready(regs: &'static crate::pac::spi::Spi) -> Result<(), Error> { fn spin_until_rx_ready(regs: Regs) -> Result<(), Error> {
loop { loop {
let sr = unsafe { regs.sr().read() }; let sr = unsafe { regs.sr().read() };
@ -440,7 +442,7 @@ impl Word for u16 {
const WORDSIZE: WordSize = WordSize::SixteenBit; const WORDSIZE: WordSize = WordSize::SixteenBit;
} }
fn transfer_word<W: Word>(regs: &'static crate::pac::spi::Spi, tx_word: W) -> Result<W, Error> { fn transfer_word<W: Word>(regs: Regs, tx_word: W) -> Result<W, Error> {
spin_until_tx_ready(regs)?; spin_until_tx_ready(regs)?;
unsafe { unsafe {