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Constraint the uart::pin:: traits to UartDevice

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This commit is contained in:
Victor Koenders 2021-11-25 14:03:27 +01:00
parent a4a0bcf987
commit a8a27672b8
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GPG key ID: 2E441540865B8A1C
1 changed files with 14 additions and 9 deletions
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23
rp2040-hal/src/uart/pins.rs
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@ -1,8 +1,10 @@
use crate::gpio::{bank0, FunctionUart, Pin}; use crate::gpio::{bank0, FunctionUart, Pin};
use crate::pac::{UART0, UART1}; use crate::pac::{UART0, UART1};
use super::UartDevice;
/// Declares a valid UART pinout. /// Declares a valid UART pinout.
pub trait ValidUartPinout<UART> { pub trait ValidUartPinout<UART: UartDevice> {
/// Indicates TX should be enabled for this pinout /// Indicates TX should be enabled for this pinout
const TX_ENABLED: bool; const TX_ENABLED: bool;
/// Indicates RX should be enabled for this pinout /// Indicates RX should be enabled for this pinout
@ -15,6 +17,7 @@ pub trait ValidUartPinout<UART> {
impl<UART, TX, RX, CTS, RTS> ValidUartPinout<UART> for Pins<TX, RX, CTS, RTS> impl<UART, TX, RX, CTS, RTS> ValidUartPinout<UART> for Pins<TX, RX, CTS, RTS>
where where
UART: UartDevice,
TX: Tx<UART>, TX: Tx<UART>,
RX: Rx<UART>, RX: Rx<UART>,
CTS: Cts<UART>, CTS: Cts<UART>,
@ -28,6 +31,7 @@ where
impl<UART, TX, RX> ValidUartPinout<UART> for (TX, RX) impl<UART, TX, RX> ValidUartPinout<UART> for (TX, RX)
where where
UART: UartDevice,
TX: Tx<UART>, TX: Tx<UART>,
RX: Rx<UART>, RX: Rx<UART>,
{ {
@ -39,6 +43,7 @@ where
impl<UART, TX, RX, CTS, RTS> ValidUartPinout<UART> for (TX, RX, CTS, RTS) impl<UART, TX, RX, CTS, RTS> ValidUartPinout<UART> for (TX, RX, CTS, RTS)
where where
UART: UartDevice,
TX: Tx<UART>, TX: Tx<UART>,
RX: Rx<UART>, RX: Rx<UART>,
CTS: Cts<UART>, CTS: Cts<UART>,
@ -136,36 +141,36 @@ impl<TX, RX, CTS, RTS> Pins<TX, RX, CTS, RTS> {
} }
/// Indicates a valid TX pin for UART0 or UART1 /// Indicates a valid TX pin for UART0 or UART1
pub trait Tx<UART> { pub trait Tx<UART: UartDevice> {
#[allow(missing_docs)] #[allow(missing_docs)]
const ENABLED: bool; const ENABLED: bool;
} }
/// Indicates a valid RX pin for UART0 or UART1 /// Indicates a valid RX pin for UART0 or UART1
pub trait Rx<UART> { pub trait Rx<UART: UartDevice> {
#[allow(missing_docs)] #[allow(missing_docs)]
const ENABLED: bool; const ENABLED: bool;
} }
/// Indicates a valid CTS pin for UART0 or UART1 /// Indicates a valid CTS pin for UART0 or UART1
pub trait Cts<UART> { pub trait Cts<UART: UartDevice> {
#[allow(missing_docs)] #[allow(missing_docs)]
const ENABLED: bool; const ENABLED: bool;
} }
/// Indicates a valid RTS pin for UART0 or UART1 /// Indicates a valid RTS pin for UART0 or UART1
pub trait Rts<UART> { pub trait Rts<UART: UartDevice> {
#[allow(missing_docs)] #[allow(missing_docs)]
const ENABLED: bool; const ENABLED: bool;
} }
impl<UART> Tx<UART> for () { impl<UART: UartDevice> Tx<UART> for () {
const ENABLED: bool = false; const ENABLED: bool = false;
} }
impl<UART> Rx<UART> for () { impl<UART: UartDevice> Rx<UART> for () {
const ENABLED: bool = false; const ENABLED: bool = false;
} }
impl<UART> Cts<UART> for () { impl<UART: UartDevice> Cts<UART> for () {
const ENABLED: bool = false; const ENABLED: bool = false;
} }
impl<UART> Rts<UART> for () { impl<UART: UartDevice> Rts<UART> for () {
const ENABLED: bool = false; const ENABLED: bool = false;
} }