Update embedded-hal dependency to 1.0.0-alpha.7

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "riscv"
-version = "0.7.0"
+version = "0.8.0-alpha.7"
 repository = "https://github.com/rust-embedded/riscv"
 authors = ["The RISC-V Team <[email protected]>"]
 categories = ["embedded", "hardware-support", "no-std"]
@@ -17,8 +17,8 @@ targets = [
 
 [dependencies]
 bare-metal = "1.0.0"
-bit_field = "0.10.0"
-embedded-hal = "0.2.6"
+bit_field = "0.10.1"
+embedded-hal = "=1.0.0-alpha.7"
 
 [build-dependencies]
 riscv-target = "0.1.2"

src/delay.rs

@@ -1,5 +1,6 @@
 use crate::register::mcycle;
-use embedded_hal::blocking::delay::{DelayMs, DelayUs};
+use core::convert::Infallible;
+use embedded_hal::delay::blocking::DelayUs;
 
 /// Machine mode cycle counter (`mcycle`) as a delay provider
 #[derive(Copy, Clone)]
@@ -15,71 +16,14 @@ impl McycleDelay {
     }
 }
 
-impl DelayUs<u64> for McycleDelay {
+impl DelayUs for McycleDelay {
+    type Error = Infallible;
+
     #[inline]
-    fn delay_us(&mut self, us: u64) {
+    fn delay_us(&mut self, us: u32) -> Result<(), Self::Error> {
         let t0 = mcycle::read64();
-        let clock = (us * (self.ticks_second as u64)) / 1_000_000;
+        let clock = ((us as u64) * (self.ticks_second as u64)) / 1_000_000;
         while mcycle::read64().wrapping_sub(t0) <= clock {}
-    }
-}
-
-impl DelayUs<u32> for McycleDelay {
-    #[inline(always)]
-    fn delay_us(&mut self, us: u32) {
-        self.delay_us(us as u64)
-    }
-}
-
-// Implemented for constructions like `delay.delay_us(50_000);`
-impl DelayUs<i32> for McycleDelay {
-    #[inline(always)]
-    fn delay_us(&mut self, us: i32) {
-        assert!(us >= 0);
-        self.delay_us(us as u32);
-    }
-}
-
-impl DelayUs<u16> for McycleDelay {
-    #[inline(always)]
-    fn delay_us(&mut self, us: u16) {
-        self.delay_us(us as u32)
-    }
-}
-
-impl DelayUs<u8> for McycleDelay {
-    #[inline(always)]
-    fn delay_us(&mut self, us: u8) {
-        self.delay_us(us as u32)
-    }
-}
-
-impl DelayMs<u32> for McycleDelay {
-    #[inline]
-    fn delay_ms(&mut self, ms: u32) {
-        self.delay_us((ms as u64) * 1000)
-    }
-}
-
-// Implemented for constructions like `delay.delay_ms(50_000);`
-impl DelayMs<i32> for McycleDelay {
-    #[inline(always)]
-    fn delay_ms(&mut self, ms: i32) {
-        assert!(ms >= 0);
-        self.delay_ms(ms as u32);
-    }
-}
-
-impl DelayMs<u16> for McycleDelay {
-    #[inline(always)]
-    fn delay_ms(&mut self, ms: u16) {
-        self.delay_ms(ms as u32)
-    }
-}
-
-impl DelayMs<u8> for McycleDelay {
-    #[inline(always)]
-    fn delay_ms(&mut self, ms: u8) {
-        self.delay_ms(ms as u32)
+        Ok(())
     }
 }