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soc_rp2040::ctrl

Typed RP2040 peripheral identities and cross-core ownership claims.

Structs

Section titled “Structs”

GpioPort

Section titled “GpioPort”
struct GpioPort {
    pub pin: u8,
}

Implements: Clone, Copy, Debug, Eq, PartialEq, StructuralPartialEq

I2cPort

Section titled “I2cPort”
struct I2cPort {
    pub ctrl: I2cCtrl,
    pub cfg: hal::bus::I2cConfig,
}

Implements: Clone, Copy, Debug, Eq, PartialEq, StructuralPartialEq

References: I2cConfig, I2cCtrl

PioLease

Section titled “PioLease”
struct PioLease { /* private fields */ }

An exclusive PIO block and pin bundle. Claims bits 2/3, beside UART 0/1 and USB 7. No public constructor, Clone or forced release is available.

Implements: Drop

SpiPort

Section titled “SpiPort”
struct SpiPort {
    pub ctrl: SpiCtrl,
    pub cfg: hal::bus::SpiConfig,
}

Implements: Clone, Copy, Debug, Eq, PartialEq, StructuralPartialEq

References: SpiConfig, SpiCtrl

UartPort

Section titled “UartPort”
struct UartPort {
    pub ctrl: UartCtrl,
    pub cfg: hal::bus::UartConfig,
}

Implements: Clone, Copy, Debug, Eq, PartialEq, StructuralPartialEq

References: UartConfig, UartCtrl

Enums

Section titled “Enums”

I2cCtrl

Section titled “I2cCtrl”
enum I2cCtrl {
    I2c0,
    I2c1,
}

Implements: Clone, Copy, Debug, Eq, PartialEq, StructuralPartialEq

SpiCtrl

Section titled “SpiCtrl”
enum SpiCtrl {
    Spi0,
    Spi1,
}

Implements: Clone, Copy, Debug, Eq, PartialEq, StructuralPartialEq

UartCtrl

Section titled “UartCtrl”
enum UartCtrl {
    Uart0,
    Uart1,
}

Implements: Clone, Copy, Debug, Eq, PartialEq, StructuralPartialEq

Functions

Section titled “Functions”

claim_gpio

Section titled “claim_gpio”
fn claim_gpio(pin: u8) -> bool

claim_uart

Section titled “claim_uart”
fn claim_uart(ctrl: UartCtrl) -> bool

References: UartCtrl

claim_usb

Section titled “claim_usb”
fn claim_usb() -> bool

USB uses bit 7 of the peripheral ownership word; UARTs occupy bits 0/1.

release_gpio

Section titled “release_gpio”
fn release_gpio(pin: u8)

release_uart

Section titled “release_uart”
fn release_uart(ctrl: UartCtrl)

References: UartCtrl

release_usb

Section titled “release_usb”
fn release_usb()

try_claim_pio

Section titled “try_claim_pio”
fn try_claim_pio(block: u8, pins: u32) -> Option<PioLease>

Single-attempt acquisition: a busy claim lock is Busy, never an ISR spin.

References: PioLease