58 lines
1.2 KiB
Rust
58 lines
1.2 KiB
Rust
#![macro_use]
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use embassy::interrupt::Interrupt;
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#[cfg_attr(i2c_v1, path = "v1.rs")]
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#[cfg_attr(i2c_v2, path = "v2.rs")]
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mod _version;
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use crate::peripherals;
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pub use _version::*;
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#[derive(Debug)]
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#[cfg_attr(feature = "defmt", derive(defmt::Format))]
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pub enum Error {
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Bus,
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Arbitration,
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Nack,
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Timeout,
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Crc,
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Overrun,
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ZeroLengthTransfer,
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}
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pub(crate) mod sealed {
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use super::*;
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pub trait Instance: crate::rcc::RccPeripheral {
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fn regs() -> crate::pac::i2c::I2c;
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fn state() -> &'static State;
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}
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}
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pub trait Instance: sealed::Instance + 'static {
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type Interrupt: Interrupt;
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}
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pin_trait!(SclPin, Instance);
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pin_trait!(SdaPin, Instance);
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dma_trait!(RxDma, Instance);
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dma_trait!(TxDma, Instance);
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foreach_interrupt!(
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($inst:ident, i2c, $block:ident, EV, $irq:ident) => {
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impl sealed::Instance for peripherals::$inst {
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fn regs() -> crate::pac::i2c::I2c {
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crate::pac::$inst
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}
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fn state() -> &'static State {
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static STATE: State = State::new();
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&STATE
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}
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}
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impl Instance for peripherals::$inst {
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type Interrupt = crate::interrupt::$irq;
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}
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};
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);
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