GPIO: Use Level enum instead of plain bool in constructors (#1574)

* GPIO: Use Level enum instead of plain bool in constructors

* changelog

esp-hal/CHANGELOG.md

@@ -44,6 +44,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Refactoring of GPIO module, have drivers for Input,Output,OutputOpenDrain, all drivers setup their GPIOs correctly (#1542)
 - DMA transactions are now found in the `dma` module (#1550)
 - Remove unnecessary generics from PARL_IO driver (#1545)
+- Use `Level enum` in GPIO constructors instead of plain bools (#1574) 
 
 ### Removed
 

esp-hal/src/etm.rs

@@ -23,8 +23,8 @@
 //! ## Example
 //! ```no_run
 //! let io = Io::new(peripherals.GPIO, peripherals.IO_MUX);
-//! let mut led = io.pins.gpio1.into_push_pull_output();
-//! let button = io.pins.gpio9.into_pull_down_input();
+//! let mut led = io.pins.gpio1;
+//! let button = io.pins.gpio9;
 //!
 //! // setup ETM
 //! let gpio_ext = GpioEtmChannels::new(peripherals.GPIO_SD);

esp-hal/src/gpio/etm.rs

@@ -28,7 +28,7 @@
 //!     GpioEtmOutputConfig {
 //!         open_drain: false,
 //!         pull: Pull::None,
-//!         initial_state: false,
+//!         initial_state: Level::Low,
 //!     },
 //! );
 //! let button_event = gpio_ext
@@ -37,7 +37,7 @@
 //! ```
 
 use crate::{
-    gpio::Pull,
+    gpio::{Level, Pull},
     peripheral::{Peripheral, PeripheralRef},
     private,
 };
@@ -252,15 +252,15 @@ pub struct GpioEtmOutputConfig {
     /// Only used when open-drain
     pub pull: Pull,
     /// Initial pin state
-    pub initial_state: bool,
+    pub initial_state: Level,
 }
 
 impl Default for GpioEtmOutputConfig {
     fn default() -> Self {
         Self {
             open_drain: false,
             pull: Pull::None,
-            initial_state: false,
+            initial_state: Level::Low,
         }
     }
 }
@@ -285,7 +285,7 @@ impl<const C: u8> GpioEtmTaskChannel<C> {
     {
         crate::into_ref!(pin);
 
-        pin.set_output_high(pin_config.initial_state, private::Internal);
+        pin.set_output_high(pin_config.initial_state.into(), private::Internal);
         if pin_config.open_drain {
             pin.internal_pull_down(pin_config.pull == Pull::Down, private::Internal);
             pin.internal_pull_up(pin_config.pull == Pull::Up, private::Internal);
@@ -309,7 +309,7 @@ impl<const C: u8> GpioEtmTaskChannel<C> {
     {
         crate::into_ref!(pin);
 
-        pin.set_output_high(pin_config.initial_state, private::Internal);
+        pin.set_output_high(pin_config.initial_state.into(), private::Internal);
         if pin_config.open_drain {
             pin.internal_pull_down(pin_config.pull == Pull::Down, private::Internal);
             pin.internal_pull_up(pin_config.pull == Pull::Up, private::Internal);
@@ -333,7 +333,7 @@ impl<const C: u8> GpioEtmTaskChannel<C> {
     {
         crate::into_ref!(pin);
 
-        pin.set_output_high(pin_config.initial_state, private::Internal);
+        pin.set_output_high(pin_config.initial_state.into(), private::Internal);
         if pin_config.open_drain {
             pin.internal_pull_down(pin_config.pull == Pull::Down, private::Internal);
             pin.internal_pull_up(pin_config.pull == Pull::Up, private::Internal);

esp-hal/src/gpio/mod.rs

@@ -1557,10 +1557,10 @@ where
 {
     /// Create GPIO output driver for a [GpioPin] with the provided level
     #[inline]
-    pub fn new(pin: impl crate::peripheral::Peripheral<P = P> + 'd, initial_output: bool) -> Self {
+    pub fn new(pin: impl crate::peripheral::Peripheral<P = P> + 'd, initial_output: Level) -> Self {
         crate::into_ref!(pin);
 
-        pin.set_output_high(initial_output, private::Internal);
+        pin.set_output_high(initial_output.into(), private::Internal);
         pin.set_to_push_pull_output(private::Internal);
 
         Self { pin }
@@ -1683,11 +1683,11 @@ where
     #[inline]
     pub fn new(
         pin: impl crate::peripheral::Peripheral<P = P> + 'd,
-        initial_output: bool,
+        initial_output: Level,
         pull: Pull,
     ) -> Self {
         crate::into_ref!(pin);
-        pin.set_output_high(initial_output, private::Internal);
+        pin.set_output_high(initial_output.into(), private::Internal);
         pin.set_to_open_drain_output(private::Internal);
         pin.internal_pull_down(pull == Pull::Down, private::Internal);
         pin.internal_pull_up(pull == Pull::Up, private::Internal);
@@ -1785,11 +1785,11 @@ impl<'d> AnyOutput<'d> {
     #[inline]
     pub fn new<P: OutputPin + CreateErasedPin>(
         pin: impl crate::peripheral::Peripheral<P = P> + 'd,
-        initial_output: bool,
+        initial_output: Level,
     ) -> Self {
         crate::into_ref!(pin);
 
-        pin.set_output_high(initial_output, private::Internal);
+        pin.set_output_high(initial_output.into(), private::Internal);
         pin.set_to_push_pull_output(private::Internal);
 
         let pin = pin.erased_pin(private::Internal);
@@ -1912,11 +1912,11 @@ impl<'d> AnyOutputOpenDrain<'d> {
     #[inline]
     pub fn new<P: OutputPin + InputPin + CreateErasedPin>(
         pin: impl crate::peripheral::Peripheral<P = P> + 'd,
-        initial_output: bool,
+        initial_output: Level,
         pull: Pull,
     ) -> Self {
         crate::into_ref!(pin);
-        pin.set_output_high(initial_output, private::Internal);
+        pin.set_output_high(initial_output.into(), private::Internal);
         pin.internal_pull_down(pull == Pull::Down, private::Internal);
         pin.internal_pull_up(pull == Pull::Up, private::Internal);
         pin.set_to_open_drain_output(private::Internal);

esp-hal/src/rmt.rs

@@ -45,7 +45,7 @@
 //! let mut channel = rmt
 //!     .channel0
 //!     .configure(
-//!         io.pins.gpio1.into_push_pull_output(),
+//!         io.pins.gpio1,
 //!         TxChannelConfig {
 //!             clk_divider: 1,
 //!             idle_output_level: false,

esp-hal/src/soc/esp32c6/lp_core.rs

@@ -15,43 +15,22 @@
 //!
 //! ## Example
 //! ```no_run
-//! const CODE: &[u8] = &[
-//!     0x13, 0x00, 0x00, 0x00, 0x13, 0x00, 0x00, 0x00, 0x13, 0x00, 0x00, 0x00, 0x13, 0x00, 0x00,
-//!     0x00, 0x13, 0x00, 0x00, 0x00, 0x13, 0x00, 0x00, 0x00, 0x13, 0x00, 0x00, 0x00, 0x13, 0x00,
-//!     0x00, 0x00, 0x13, 0x00, 0x00, 0x00, 0x13, 0x00, 0x00, 0x00, 0x13, 0x00, 0x00, 0x00, 0x13,
-//!     0x00, 0x00, 0x00, 0x13, 0x00, 0x00, 0x00, 0x13, 0x00, 0x00, 0x00, 0x13, 0x00, 0x00, 0x00,
-//!     0x13, 0x00, 0x00, 0x00, 0x13, 0x00, 0x00, 0x00, 0x13, 0x00, 0x00, 0x00, 0x13, 0x00, 0x00,
-//!     0x00, 0x13, 0x00, 0x00, 0x00, 0x13, 0x00, 0x00, 0x00, 0x13, 0x00, 0x00, 0x00, 0x13, 0x00,
-//!     0x00, 0x00, 0x13, 0x00, 0x00, 0x00, 0x13, 0x00, 0x00, 0x00, 0x13, 0x00, 0x00, 0x00, 0x13,
-//!     0x00, 0x00, 0x00, 0x13, 0x00, 0x00, 0x00, 0x13, 0x00, 0x00, 0x00, 0x13, 0x00, 0x00, 0x00,
-//!     0x13, 0x00, 0x00, 0x00, 0x13, 0x00, 0x00, 0x00, 0x17, 0x05, 0x00, 0x00, 0x13, 0x05, 0x05,
-//!     0x04, 0x85, 0x45, 0x23, 0x00, 0xb5, 0x00, 0xb7, 0x26, 0x0b, 0x60, 0xa1, 0x06, 0x37, 0x26,
-//!     0x0b, 0x60, 0x11, 0x06, 0x09, 0x47, 0x18, 0xc2, 0xb7, 0x47, 0x0f, 0x00, 0x93, 0x87, 0x07,
-//!     0x24, 0xfd, 0x17, 0xfd, 0xff, 0x85, 0x05, 0x23, 0x00, 0xb5, 0x00, 0x98, 0xc2, 0xb7, 0x47,
-//!     0x0f, 0x00, 0x93, 0x87, 0x07, 0x24, 0xfd, 0x17, 0xfd, 0xff, 0xf9, 0xbf, 0x00, 0x00, 0x00,
-//!     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-//! ];
-//!
 //! // configure GPIO 1 as LP output pin
-//! let mut lp_pin = io.pins.gpio1.into_low_power();
-//! lp_pin.output_enable(true);
+//! let lp_pin = LowPowerOutput::new(io.pins.gpio1);
 //!
 //! let mut lp_core = esp_hal::lp_core::LpCore::new(peripherals.LP_CORE);
 //! lp_core.stop();
 //! println!("lp core stopped");
 //!
-//! // copy code to LP ram
-//! let lp_ram = 0x5000_0000 as *mut u8;
-//! unsafe {
-//!     core::ptr::copy_nonoverlapping(CODE as *const _ as *const u8, lp_ram, CODE.len());
-//! }
-//! println!("copied code (len {})", CODE.len());
+//! // load code to LP core
+//! let lp_core_code =
+//!     load_lp_code!("../esp-lp-hal/target/riscv32imac-unknown-none-elf/release/examples/blinky");
 //!
 //! // start LP core
 //! lp_core.run(lp_core::LpCoreWakeupSource::HpCpu);
 //! println!("lpcore run");
 //!
-//! let data = (0x500000c0) as *mut u32;
+//! let data = (0x5000_2000) as *mut u32;
 //! loop {
 //!     print!("Current {:x}           \u{000d}", unsafe {
 //!         data.read_volatile()

examples/src/bin/blinky.rs

@@ -11,7 +11,7 @@ use esp_backtrace as _;
 use esp_hal::{
     clock::ClockControl,
     delay::Delay,
-    gpio::{Io, Output},
+    gpio::{Io, Level, Output},
     peripherals::Peripherals,
     prelude::*,
     system::SystemControl,
@@ -25,7 +25,7 @@ fn main() -> ! {
 
     // Set GPIO0 as an output, and set its state high initially.
     let io = Io::new(peripherals.GPIO, peripherals.IO_MUX);
-    let mut led = Output::new(io.pins.gpio0, true);
+    let mut led = Output::new(io.pins.gpio0, Level::High);
 
     // Initialize the Delay peripheral, and use it to toggle the LED state in a
     // loop.

examples/src/bin/blinky_erased_pins.rs

@@ -14,7 +14,7 @@ use esp_backtrace as _;
 use esp_hal::{
     clock::ClockControl,
     delay::Delay,
-    gpio::{AnyInput, AnyOutput, Io, Pull},
+    gpio::{AnyInput, AnyOutput, Io, Level, Pull},
     peripherals::Peripherals,
     prelude::*,
     system::SystemControl,
@@ -29,9 +29,9 @@ fn main() -> ! {
     let io = Io::new(peripherals.GPIO, peripherals.IO_MUX);
 
     // Set LED GPIOs as an output:
-    let led1 = AnyOutput::new(io.pins.gpio2, false);
-    let led2 = AnyOutput::new(io.pins.gpio4, false);
-    let led3 = AnyOutput::new(io.pins.gpio5, false);
+    let led1 = AnyOutput::new(io.pins.gpio2, Level::Low);
+    let led2 = AnyOutput::new(io.pins.gpio4, Level::Low);
+    let led3 = AnyOutput::new(io.pins.gpio5, Level::Low);
 
     // Use boot button as an input:
     #[cfg(any(feature = "esp32", feature = "esp32s2", feature = "esp32s3"))]

examples/src/bin/embassy_multicore.rs

@@ -20,7 +20,7 @@ use esp_hal::{
     cpu_control::{CpuControl, Stack},
     embassy::{self, executor::Executor},
     get_core,
-    gpio::{AnyOutput, Io},
+    gpio::{AnyOutput, Io, Level},
     peripherals::Peripherals,
     prelude::*,
     system::SystemControl,
@@ -66,7 +66,7 @@ async fn main(_spawner: Spawner) {
     static LED_CTRL: StaticCell<Signal<CriticalSectionRawMutex, bool>> = StaticCell::new();
     let led_ctrl_signal = &*LED_CTRL.init(Signal::new());
 
-    let led = AnyOutput::new(io.pins.gpio0, false);
+    let led = AnyOutput::new(io.pins.gpio0, Level::Low);
 
     let _guard = cpu_control
         .start_app_core(unsafe { &mut *addr_of_mut!(APP_CORE_STACK) }, move || {

examples/src/bin/embassy_multicore_interrupt.rs

@@ -19,7 +19,7 @@ use esp_hal::{
     cpu_control::{CpuControl, Stack},
     embassy::{self, executor::InterruptExecutor},
     get_core,
-    gpio::{AnyOutput, Io},
+    gpio::{AnyOutput, Io, Level},
     interrupt::Priority,
     peripherals::Peripherals,
     prelude::*,
@@ -85,7 +85,7 @@ fn main() -> ! {
     static LED_CTRL: StaticCell<Signal<CriticalSectionRawMutex, bool>> = StaticCell::new();
     let led_ctrl_signal = &*LED_CTRL.init(Signal::new());
 
-    let led = AnyOutput::new(io.pins.gpio0, false);
+    let led = AnyOutput::new(io.pins.gpio0, Level::Low);
 
     static EXECUTOR_CORE_1: StaticCell<InterruptExecutor<1>> = StaticCell::new();
     let executor_core1 =

examples/src/bin/embassy_rmt_rx.rs

@@ -13,7 +13,7 @@ use esp_backtrace as _;
 use esp_hal::{
     clock::ClockControl,
     embassy::{self},
-    gpio::{Gpio5, Io, Output},
+    gpio::{Gpio5, Io, Level, Output},
     peripherals::Peripherals,
     prelude::*,
     rmt::{asynch::RxChannelAsync, PulseCode, Rmt, RxChannelConfig, RxChannelCreatorAsync},
@@ -75,7 +75,7 @@ async fn main(spawner: Spawner) {
     }
 
     spawner
-        .spawn(signal_task(Output::new(io.pins.gpio5, false)))
+        .spawn(signal_task(Output::new(io.pins.gpio5, Level::Low)))
         .unwrap();
 
     let mut data = [PulseCode {

examples/src/bin/etm_blinky_systimer.rs

@@ -11,6 +11,7 @@ use esp_hal::{
     gpio::{
         etm::{GpioEtmChannels, GpioEtmOutputConfig},
         Io,
+        Level,
         Pull,
     },
     peripherals::Peripherals,
@@ -37,7 +38,7 @@ fn main() -> ! {
         GpioEtmOutputConfig {
             open_drain: false,
             pull: Pull::None,
-            initial_state: true,
+            initial_state: Level::High,
         },
     );
 

examples/src/bin/etm_gpio.rs

@@ -11,6 +11,7 @@ use esp_hal::{
     gpio::{
         etm::{GpioEtmChannels, GpioEtmInputConfig, GpioEtmOutputConfig},
         Io,
+        Level,
         Pull,
     },
     peripherals::Peripherals,
@@ -34,7 +35,7 @@ fn main() -> ! {
         GpioEtmOutputConfig {
             open_drain: false,
             pull: Pull::None,
-            initial_state: false,
+            initial_state: Level::Low,
         },
     );
     let button_event = gpio_ext

examples/src/bin/gpio_interrupt.rs

@@ -15,7 +15,7 @@ use esp_backtrace as _;
 use esp_hal::{
     clock::ClockControl,
     delay::Delay,
-    gpio::{self, Event, Input, Io, Output, Pull},
+    gpio::{self, Event, Input, Io, Level, Output, Pull},
     macros::ram,
     peripherals::Peripherals,
     prelude::*,
@@ -36,7 +36,7 @@ fn main() -> ! {
     // Set GPIO2 as an output, and set its state high initially.
     let mut io = Io::new(peripherals.GPIO, peripherals.IO_MUX);
     io.set_interrupt_handler(handler);
-    let mut led = Output::new(io.pins.gpio2, false);
+    let mut led = Output::new(io.pins.gpio2, Level::Low);
 
     #[cfg(any(feature = "esp32", feature = "esp32s2", feature = "esp32s3"))]
     let button = io.pins.gpio0;

examples/src/bin/lcd_i8080.rs

@@ -28,7 +28,7 @@ use esp_hal::{
     delay::Delay,
     dma::{Dma, DmaPriority},
     dma_buffers,
-    gpio::{Io, Output},
+    gpio::{Io, Level, Output},
     lcd_cam::{
         lcd::i8080::{Config, TxEightBits, I8080},
         LcdCam,
@@ -67,8 +67,8 @@ fn main() -> ! {
 
     let delay = Delay::new(&clocks);
 
-    let mut backlight = Output::new(lcd_backlight, false);
-    let mut reset = Output::new(lcd_reset, false);
+    let mut backlight = Output::new(lcd_backlight, Level::Low);
+    let mut reset = Output::new(lcd_reset, Level::Low);
 
     let tx_pins = TxEightBits::new(
         io.pins.gpio9,

examples/src/bin/spi_eh1_device_loopback.rs

@@ -37,7 +37,7 @@ use esp_backtrace as _;
 use esp_hal::{
     clock::ClockControl,
     delay::Delay,
-    gpio::{self, Io, Output},
+    gpio::{self, Io, Level, Output},
     peripherals::Peripherals,
     prelude::*,
     spi::{master::Spi, SpiMode},
@@ -63,19 +63,20 @@ fn main() -> ! {
         gpio::NO_PIN,
     );
     let spi_bus = RefCell::new(spi_bus);
-    let mut spi_device_1 = RefCellDevice::new_no_delay(&spi_bus, Output::new(io.pins.gpio5, false));
+    let mut spi_device_1 =
+        RefCellDevice::new_no_delay(&spi_bus, Output::new(io.pins.gpio5, Level::Low));
 
     cfg_if::cfg_if! {
         if #[cfg(feature = "esp32")] {
             let mut spi_device_2 =
-                RefCellDevice::new_no_delay(&spi_bus, Output::new(io.pins.gpio13, false));
+                RefCellDevice::new_no_delay(&spi_bus, Output::new(io.pins.gpio13, Level::Low));
             let mut spi_device_3 =
-                RefCellDevice::new_no_delay(&spi_bus, Output::new(io.pins.gpio14,false));
+                RefCellDevice::new_no_delay(&spi_bus, Output::new(io.pins.gpio14, Level::Low));
         } else {
             let mut spi_device_2 =
-                RefCellDevice::new_no_delay(&spi_bus, Output::new(io.pins.gpio6,false));
+                RefCellDevice::new_no_delay(&spi_bus, Output::new(io.pins.gpio6, Level::Low));
             let mut spi_device_3 =
-                RefCellDevice::new_no_delay(&spi_bus, Output::new(io.pins.gpio7, false));
+                RefCellDevice::new_no_delay(&spi_bus, Output::new(io.pins.gpio7, Level::Low));
         }
     }