Replace futures::future::poll_fn -> core::future::poll_fn.

embassy-nrf/src/buffered_uarte.rs

@@ -15,7 +15,7 @@
 
 use core::cell::RefCell;
 use core::cmp::min;
-use core::future::Future;
+use core::future::{poll_fn, Future};
 use core::sync::atomic::{compiler_fence, Ordering};
 use core::task::Poll;
 
@@ -23,7 +23,6 @@ use embassy_cortex_m::peripheral::{PeripheralMutex, PeripheralState, StateStorag
 use embassy_hal_common::ring_buffer::RingBuffer;
 use embassy_hal_common::{into_ref, PeripheralRef};
 use embassy_sync::waitqueue::WakerRegistration;
-use futures::future::poll_fn;
 // Re-export SVD variants to allow user to directly set values
 pub use pac::uarte0::{baudrate::BAUDRATE_A as Baudrate, config::PARITY_A as Parity};
 

embassy-nrf/src/gpiote.rs

@@ -1,10 +1,9 @@
 use core::convert::Infallible;
-use core::future::Future;
+use core::future::{poll_fn, Future};
 use core::task::{Context, Poll};
 
 use embassy_hal_common::{impl_peripheral, Peripheral, PeripheralRef};
 use embassy_sync::waitqueue::AtomicWaker;
-use futures::future::poll_fn;
 
 use crate::gpio::sealed::Pin as _;
 use crate::gpio::{AnyPin, Flex, Input, Output, Pin as GpioPin};

embassy-nrf/src/qdec.rs

@@ -1,10 +1,10 @@
 //! Quadrature decoder interface
 
+use core::future::poll_fn;
 use core::task::Poll;
 
 use embassy_hal_common::{into_ref, PeripheralRef};
 use embassy_sync::waitqueue::AtomicWaker;
-use futures::future::poll_fn;
 
 use crate::gpio::sealed::Pin as _;
 use crate::gpio::{AnyPin, Pin as GpioPin};

embassy-nrf/src/qspi.rs

@@ -1,11 +1,11 @@
 #![macro_use]
 
+use core::future::poll_fn;
 use core::ptr;
 use core::task::Poll;
 
 use embassy_hal_common::drop::DropBomb;
 use embassy_hal_common::{into_ref, PeripheralRef};
-use futures::future::poll_fn;
 
 use crate::gpio::{self, Pin as GpioPin};
 use crate::interrupt::{Interrupt, InterruptExt};

embassy-nrf/src/rng.rs

@@ -1,3 +1,4 @@
+use core::future::poll_fn;
 use core::ptr;
 use core::sync::atomic::{AtomicPtr, Ordering};
 use core::task::Poll;
@@ -5,7 +6,6 @@ use core::task::Poll;
 use embassy_hal_common::drop::OnDrop;
 use embassy_hal_common::{into_ref, PeripheralRef};
 use embassy_sync::waitqueue::AtomicWaker;
-use futures::future::poll_fn;
 
 use crate::interrupt::InterruptExt;
 use crate::peripherals::RNG;

embassy-nrf/src/saadc.rs

@@ -1,12 +1,12 @@
 #![macro_use]
 
+use core::future::poll_fn;
 use core::sync::atomic::{compiler_fence, Ordering};
 use core::task::Poll;
 
 use embassy_hal_common::drop::OnDrop;
 use embassy_hal_common::{impl_peripheral, into_ref, PeripheralRef};
 use embassy_sync::waitqueue::AtomicWaker;
-use futures::future::poll_fn;
 use pac::{saadc, SAADC};
 use saadc::ch::config::{GAIN_A, REFSEL_A, RESP_A, TACQ_A};
 // We treat the positive and negative channels with the same enum values to keep our type tidy and given they are the same

embassy-nrf/src/spim.rs

@@ -1,12 +1,12 @@
 #![macro_use]
 
+use core::future::poll_fn;
 use core::sync::atomic::{compiler_fence, Ordering};
 use core::task::Poll;
 
 use embassy_embedded_hal::SetConfig;
 use embassy_hal_common::{into_ref, PeripheralRef};
 pub use embedded_hal_02::spi::{Mode, Phase, Polarity, MODE_0, MODE_1, MODE_2, MODE_3};
-use futures::future::poll_fn;
 pub use pac::spim0::frequency::FREQUENCY_A as Frequency;
 
 use crate::chip::FORCE_COPY_BUFFER_SIZE;

embassy-nrf/src/temp.rs

@@ -1,12 +1,12 @@
 //! Temperature sensor interface.
 
+use core::future::poll_fn;
 use core::task::Poll;
 
 use embassy_hal_common::drop::OnDrop;
 use embassy_hal_common::{into_ref, PeripheralRef};
 use embassy_sync::waitqueue::AtomicWaker;
 use fixed::types::I30F2;
-use futures::future::poll_fn;
 
 use crate::interrupt::InterruptExt;
 use crate::peripherals::TEMP;

embassy-nrf/src/timer.rs

@@ -1,12 +1,12 @@
 #![macro_use]
 
+use core::future::poll_fn;
 use core::marker::PhantomData;
 use core::task::Poll;
 
 use embassy_hal_common::drop::OnDrop;
 use embassy_hal_common::{into_ref, PeripheralRef};
 use embassy_sync::waitqueue::AtomicWaker;
-use futures::future::poll_fn;
 
 use crate::interrupt::{Interrupt, InterruptExt};
 use crate::ppi::{Event, Task};

embassy-nrf/src/twim.rs

@@ -6,7 +6,7 @@
 //!
 //! - nRF52832: Section 33
 //! - nRF52840: Section 6.31
-use core::future::Future;
+use core::future::{poll_fn, Future};
 use core::sync::atomic::compiler_fence;
 use core::sync::atomic::Ordering::SeqCst;
 use core::task::Poll;
@@ -16,7 +16,6 @@ use embassy_hal_common::{into_ref, PeripheralRef};
 use embassy_sync::waitqueue::AtomicWaker;
 #[cfg(feature = "time")]
 use embassy_time::{Duration, Instant};
-use futures::future::poll_fn;
 
 use crate::chip::{EASY_DMA_SIZE, FORCE_COPY_BUFFER_SIZE};
 use crate::gpio::Pin as GpioPin;

embassy-nrf/src/uarte.rs

@@ -13,12 +13,12 @@
 //! memory may be used given that buffers are passed in directly to its read and write
 //! methods.
 
+use core::future::poll_fn;
 use core::sync::atomic::{compiler_fence, Ordering};
 use core::task::Poll;
 
 use embassy_hal_common::drop::OnDrop;
 use embassy_hal_common::{into_ref, PeripheralRef};
-use futures::future::poll_fn;
 use pac::uarte0::RegisterBlock;
 // Re-export SVD variants to allow user to directly set values.
 pub use pac::uarte0::{baudrate::BAUDRATE_A as Baudrate, config::PARITY_A as Parity};

embassy-nrf/src/usb.rs

@@ -1,5 +1,6 @@
 #![macro_use]
 
+use core::future::{poll_fn, Future};
 use core::marker::PhantomData;
 use core::mem::MaybeUninit;
 use core::sync::atomic::{compiler_fence, AtomicBool, AtomicU32, Ordering};
@@ -11,8 +12,6 @@ use embassy_sync::waitqueue::AtomicWaker;
 pub use embassy_usb;
 use embassy_usb::driver::{self, EndpointError, Event, Unsupported};
 use embassy_usb::types::{EndpointAddress, EndpointInfo, EndpointType, UsbDirection};
-use futures::future::poll_fn;
-use futures::Future;
 use pac::usbd::RegisterBlock;
 
 use crate::interrupt::{Interrupt, InterruptExt};