From c0679ca582ea355181db5daf5145d1dd1de5ac2b Mon Sep 17 00:00:00 2001
From: Jan Niehusmann <jan@gondor.com>
Date: Sat, 24 Feb 2024 11:36:19 +0000
Subject: [PATCH] Use as_ptr() to retrieve pointer to register

This is slightly less error prone than `as *const _`.
---
 rp2040-hal/src/adc.rs         | 2 +-
 rp2040-hal/src/pio.rs         | 4 ++--
 rp2040-hal/src/spi.rs         | 4 ++--
 rp2040-hal/src/uart/reader.rs | 2 +-
 rp2040-hal/src/uart/writer.rs | 2 +-
 5 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/rp2040-hal/src/adc.rs b/rp2040-hal/src/adc.rs
index 3894bcc41..d12a748d8 100644
--- a/rp2040-hal/src/adc.rs
+++ b/rp2040-hal/src/adc.rs
@@ -694,7 +694,7 @@ impl<'a, Word> AdcFifo<'a, Word> {
     /// The [`DmaReadTarget`] returned by this function can be used to initiate DMA transfers
     /// reading from the ADC.
     pub fn dma_read_target(&self) -> DmaReadTarget<Word> {
-        DmaReadTarget(self.adc.device.fifo() as *const _ as u32, PhantomData)
+        DmaReadTarget(self.adc.device.fifo().as_ptr() as u32, PhantomData)
     }
 }
 
diff --git a/rp2040-hal/src/pio.rs b/rp2040-hal/src/pio.rs
index c38e7ddf0..b54840ad7 100644
--- a/rp2040-hal/src/pio.rs
+++ b/rp2040-hal/src/pio.rs
@@ -1432,7 +1432,7 @@ unsafe impl<SM: ValidStateMachine> ReadTarget for Rx<SM> {
 
     fn rx_address_count(&self) -> (u32, u32) {
         (
-            unsafe { &*self.block }.rxf(SM::id()) as *const _ as u32,
+            unsafe { &*self.block }.rxf(SM::id()).as_ptr() as u32,
             u32::MAX,
         )
     }
@@ -1626,7 +1626,7 @@ unsafe impl<SM: ValidStateMachine> WriteTarget for Tx<SM> {
 
     fn tx_address_count(&mut self) -> (u32, u32) {
         (
-            unsafe { &*self.block }.txf(SM::id()) as *const _ as u32,
+            unsafe { &*self.block }.txf(SM::id()).as_ptr() as u32,
             u32::MAX,
         )
     }
diff --git a/rp2040-hal/src/spi.rs b/rp2040-hal/src/spi.rs
index 4da1abc90..8ba70adbb 100644
--- a/rp2040-hal/src/spi.rs
+++ b/rp2040-hal/src/spi.rs
@@ -518,7 +518,7 @@ macro_rules! impl_write {
 
             fn rx_address_count(&self) -> (u32, u32) {
                 (
-                    self.device.sspdr() as *const _ as u32,
+                    self.device.sspdr().as_ptr() as u32,
                     u32::MAX,
                 )
             }
@@ -541,7 +541,7 @@ macro_rules! impl_write {
 
             fn tx_address_count(&mut self) -> (u32, u32) {
                 (
-                    self.device.sspdr() as *const _ as u32,
+                    self.device.sspdr().as_ptr() as u32,
                     u32::MAX,
                 )
             }
diff --git a/rp2040-hal/src/uart/reader.rs b/rp2040-hal/src/uart/reader.rs
index 0a86431b9..3a321213f 100644
--- a/rp2040-hal/src/uart/reader.rs
+++ b/rp2040-hal/src/uart/reader.rs
@@ -244,7 +244,7 @@ unsafe impl<D: UartDevice, P: ValidUartPinout<D>> ReadTarget for Reader<D, P> {
     }
 
     fn rx_address_count(&self) -> (u32, u32) {
-        (self.device.uartdr() as *const _ as u32, u32::MAX)
+        (self.device.uartdr().as_ptr() as u32, u32::MAX)
     }
 
     fn rx_increment(&self) -> bool {
diff --git a/rp2040-hal/src/uart/writer.rs b/rp2040-hal/src/uart/writer.rs
index 505468474..d90072a59 100644
--- a/rp2040-hal/src/uart/writer.rs
+++ b/rp2040-hal/src/uart/writer.rs
@@ -200,7 +200,7 @@ unsafe impl<D: UartDevice, P: ValidUartPinout<D>> WriteTarget for Writer<D, P> {
     }
 
     fn tx_address_count(&mut self) -> (u32, u32) {
-        (self.device.uartdr() as *const _ as u32, u32::MAX)
+        (self.device.uartdr().as_ptr() as u32, u32::MAX)
     }
 
     fn tx_increment(&self) -> bool {