feat: add new_with_table() initializer for ring-buffers and removal of RegisterUpdaters

- It is now possible to pass a linked-list table to the ring-buffer with
the `new_with_table()` function or use the `new()` function for a basic
ring-buffer setup.
- A `simple_ring_buffer_table()` function was added to the read and
write ring-buffers to generate the same table as the one created by
`new()` in case the user only wants to customize the default table
options.
- RegisterUpdaters have been removed as the user now has direct access
to the table and its items if needed.

See: https://github.com/elagil/embassy/pull/1#issuecomment-2891997294

1 files changed, 2 insertions, 3 deletions

diff --git a/embassy-stm32/src/usart/ringbuffered.rs b/embassy-stm32/src/usart/ringbuffered.rs
index 78bf4b72f..8a607a31a 100644
--- a/embassy-stm32/src/usart/ringbuffered.rs
+++ b/embassy-stm32/src/usart/ringbuffered.rs
@@ -83,7 +83,7 @@ pub struct RingBufferedUartRx<'d> {
     kernel_clock: Hertz,
     rx: Option<Peri<'d, AnyPin>>,
     rts: Option<Peri<'d, AnyPin>>,
-    ring_buf: ReadableRingBuffer<'d, u8>,
+    ring_buf: ReadableRingBuffer<'d, u8, 2>,
 }
 
 impl<'d> SetConfig for RingBufferedUartRx<'d> {
@@ -103,7 +103,6 @@ impl<'d> UartRx<'d, Async> {
         assert!(!dma_buf.is_empty() && dma_buf.len() <= 0xFFFF);
 
         let opts = Default::default();
-        let updaters = Default::default();
 
         // Safety: we forget the struct before this function returns.
         let rx_dma = self.rx_dma.as_mut().unwrap();
@@ -113,7 +112,7 @@ impl<'d> UartRx<'d, Async> {
         let info = self.info;
         let state = self.state;
         let kernel_clock = self.kernel_clock;
-        let ring_buf = unsafe { ReadableRingBuffer::new(rx_dma, request, rdr(info.regs), dma_buf, opts, updaters) };
+        let ring_buf = unsafe { ReadableRingBuffer::new(rx_dma, request, rdr(info.regs), dma_buf, opts) };
         let rx = unsafe { self.rx.as_ref().map(|x| x.clone_unchecked()) };
         let rts = unsafe { self.rts.as_ref().map(|x| x.clone_unchecked()) };