rp/pio: make PioCommon a struct

the PioCommon trait does not serve much of a purpose; there can be only
two implementations and they only differ in a few associated constants.

4 files changed, 8 insertions, 17 deletions

diff --git a/examples/rp/src/bin/pio_async.rs b/examples/rp/src/bin/pio_async.rs
index 69a22f238..50b001b69 100644
--- a/examples/rp/src/bin/pio_async.rs
+++ b/examples/rp/src/bin/pio_async.rs
@@ -5,14 +5,12 @@ use defmt::info;
 use embassy_executor::Spawner;
 use embassy_rp::gpio::{AnyPin, Pin};
 use embassy_rp::peripherals::PIO0;
-use embassy_rp::pio::{
-    Pio, PioCommon, PioCommonInstance, PioStateMachine, PioStateMachineInstance, ShiftDirection, Sm0, Sm1, Sm2,
-};
+use embassy_rp::pio::{Pio, PioCommon, PioStateMachine, PioStateMachineInstance, ShiftDirection, Sm0, Sm1, Sm2};
 use embassy_rp::pio_instr_util;
 use embassy_rp::relocate::RelocatedProgram;
 use {defmt_rtt as _, panic_probe as _};
 
-fn setup_pio_task_sm0(pio: &mut PioCommonInstance<PIO0>, sm: &mut PioStateMachineInstance<PIO0, Sm0>, pin: AnyPin) {
+fn setup_pio_task_sm0(pio: &mut PioCommon<PIO0>, sm: &mut PioStateMachineInstance<PIO0, Sm0>, pin: AnyPin) {
     // Setup sm0
 
     // Send data serially to pin
@@ -51,7 +49,7 @@ async fn pio_task_sm0(mut sm: PioStateMachineInstance<'static, PIO0, Sm0>) {
     }
 }
 
-fn setup_pio_task_sm1(pio: &mut PioCommonInstance<PIO0>, sm: &mut PioStateMachineInstance<PIO0, Sm1>) {
+fn setup_pio_task_sm1(pio: &mut PioCommon<PIO0>, sm: &mut PioStateMachineInstance<PIO0, Sm1>) {
     // Setupm sm1
 
     // Read 0b10101 repeatedly until ISR is full
@@ -78,7 +76,7 @@ async fn pio_task_sm1(mut sm: PioStateMachineInstance<'static, PIO0, Sm1>) {
     }
 }
 
-fn setup_pio_task_sm2(pio: &mut PioCommonInstance<PIO0>, sm: &mut PioStateMachineInstance<PIO0, Sm2>) {
+fn setup_pio_task_sm2(pio: &mut PioCommon<PIO0>, sm: &mut PioStateMachineInstance<PIO0, Sm2>) {
     // Setup sm2
 
     // Repeatedly trigger IRQ 3
diff --git a/examples/rp/src/bin/pio_dma.rs b/examples/rp/src/bin/pio_dma.rs
index 33c320b8f..0f1f6df12 100644
--- a/examples/rp/src/bin/pio_dma.rs
+++ b/examples/rp/src/bin/pio_dma.rs
@@ -4,7 +4,7 @@
 use defmt::info;
 use embassy_executor::Spawner;
 use embassy_futures::join::join;
-use embassy_rp::pio::{Pio, PioCommon, PioStateMachine, ShiftDirection};
+use embassy_rp::pio::{Pio, PioStateMachine, ShiftDirection};
 use embassy_rp::relocate::RelocatedProgram;
 use embassy_rp::{pio_instr_util, Peripheral};
 use {defmt_rtt as _, panic_probe as _};
diff --git a/examples/rp/src/bin/pio_hd44780.rs b/examples/rp/src/bin/pio_hd44780.rs
index 994d4600a..20c6a0565 100644
--- a/examples/rp/src/bin/pio_hd44780.rs
+++ b/examples/rp/src/bin/pio_hd44780.rs
@@ -8,9 +8,7 @@ use embassy_executor::Spawner;
 use embassy_rp::dma::{AnyChannel, Channel};
 use embassy_rp::gpio::Pin;
 use embassy_rp::peripherals::PIO0;
-use embassy_rp::pio::{
-    FifoJoin, Pio, PioCommon, PioStateMachine, PioStateMachineInstance, ShiftDirection, SmInstanceBase,
-};
+use embassy_rp::pio::{FifoJoin, Pio, PioStateMachine, PioStateMachineInstance, ShiftDirection, SmInstanceBase};
 use embassy_rp::pwm::{Config, Pwm};
 use embassy_rp::relocate::RelocatedProgram;
 use embassy_rp::{into_ref, Peripheral, PeripheralRef};
diff --git a/examples/rp/src/bin/ws2812-pio.rs b/examples/rp/src/bin/ws2812-pio.rs
index 42c731bd7..a2121df42 100644
--- a/examples/rp/src/bin/ws2812-pio.rs
+++ b/examples/rp/src/bin/ws2812-pio.rs
@@ -6,8 +6,7 @@ use defmt::*;
 use embassy_executor::Spawner;
 use embassy_rp::gpio::{self, Pin};
 use embassy_rp::pio::{
-    FifoJoin, Pio, PioCommon, PioCommonInstance, PioInstance, PioStateMachine, PioStateMachineInstance, ShiftDirection,
-    SmInstance,
+    FifoJoin, Pio, PioCommon, PioInstance, PioStateMachine, PioStateMachineInstance, ShiftDirection, SmInstance,
 };
 use embassy_rp::pio_instr_util;
 use embassy_rp::relocate::RelocatedProgram;
@@ -19,11 +18,7 @@ pub struct Ws2812<'d, P: PioInstance, S: SmInstance> {
 }
 
 impl<'d, P: PioInstance, S: SmInstance> Ws2812<'d, P, S> {
-    pub fn new(
-        mut pio: PioCommonInstance<'d, P>,
-        mut sm: PioStateMachineInstance<'d, P, S>,
-        pin: gpio::AnyPin,
-    ) -> Self {
+    pub fn new(mut pio: PioCommon<'d, P>, mut sm: PioStateMachineInstance<'d, P, S>, pin: gpio::AnyPin) -> Self {
         // Setup sm0
 
         // prepare the PIO program