Use GenericPeripheralGuard

esp-hal/src/aes/mod.rs

@@ -59,6 +59,7 @@ use crate::{
     peripheral::{Peripheral, PeripheralRef},
     peripherals::AES,
     reg_access::{AlignmentHelper, NativeEndianess},
+    system::GenericPeripheralGuard,
 };
 
 #[cfg_attr(esp32, path = "esp32.rs")]
@@ -136,20 +137,20 @@ pub enum Mode {
 pub struct Aes<'d> {
     aes: PeripheralRef<'d, AES>,
     alignment_helper: AlignmentHelper<NativeEndianess>,
+    _guard: GenericPeripheralGuard<{ crate::system::Peripheral::Aes as u8 }>,
 }
 
 impl<'d> Aes<'d> {
     /// Constructs a new `Aes` instance.
     pub fn new(aes: impl Peripheral<P = AES> + 'd) -> Self {
         crate::into_ref!(aes);
 
-        if crate::system::PeripheralClockControl::enable(crate::system::Peripheral::Aes, true) {
-            crate::system::PeripheralClockControl::reset(crate::system::Peripheral::Aes);
-        }
+        let guard = GenericPeripheralGuard::new();
 
         let mut ret = Self {
             aes,
             alignment_helper: AlignmentHelper::native_endianess(),
+            _guard: guard,
         };
         ret.init();
 
@@ -191,12 +192,6 @@ impl<'d> Aes<'d> {
     }
 }
 
-impl Drop for Aes<'_> {
-    fn drop(&mut self) {
-        crate::system::PeripheralClockControl::enable(crate::system::Peripheral::Aes, false);
-    }
-}
-
 /// Specifications for AES flavours
 pub trait AesFlavour: crate::private::Sealed {
     /// Type of the AES key, a fixed-size array of bytes

esp-hal/src/analog/adc/riscv.rs

@@ -8,7 +8,7 @@ use crate::efuse::Efuse;
 use crate::{
     peripheral::PeripheralRef,
     peripherals::APB_SARADC,
-    system::{Peripheral, PeripheralClockControl},
+    system::{GenericPeripheralGuard, Peripheral},
 };
 
 mod calibration;
@@ -396,6 +396,7 @@ pub struct Adc<'d, ADCI> {
     _adc: PeripheralRef<'d, ADCI>,
     attenuations: [Option<Attenuation>; NUM_ATTENS],
     active_channel: Option<u8>,
+    _guard: GenericPeripheralGuard<{ Peripheral::ApbSarAdc as u8 }>,
 }
 
 impl<'d, ADCI> Adc<'d, ADCI>
@@ -408,9 +409,7 @@ where
         adc_instance: impl crate::peripheral::Peripheral<P = ADCI> + 'd,
         config: AdcConfig<ADCI>,
     ) -> Self {
-        if PeripheralClockControl::enable(Peripheral::ApbSarAdc, true) {
-            PeripheralClockControl::reset(Peripheral::ApbSarAdc);
-        }
+        let guard = GenericPeripheralGuard::new();
 
         unsafe { &*APB_SARADC::PTR }.ctrl().modify(|_, w| unsafe {
             w.start_force().set_bit();
@@ -423,6 +422,7 @@ where
             _adc: adc_instance.into_ref(),
             attenuations: config.attenuations,
             active_channel: None,
+            _guard: guard,
         }
     }
 
@@ -501,12 +501,6 @@ where
     }
 }
 
-impl<ADCI> Drop for Adc<'_, ADCI> {
-    fn drop(&mut self) {
-        PeripheralClockControl::enable(Peripheral::ApbSarAdc, false);
-    }
-}
-
 #[cfg(any(esp32c2, esp32c3, esp32c6))]
 impl super::AdcCalEfuse for crate::peripherals::ADC1 {
     fn init_code(atten: Attenuation) -> Option<u16> {

esp-hal/src/analog/adc/xtensa.rs

@@ -6,7 +6,7 @@ use crate::efuse::Efuse;
 use crate::{
     peripheral::PeripheralRef,
     peripherals::{APB_SARADC, SENS},
-    system::{Peripheral, PeripheralClockControl},
+    system::{GenericPeripheralGuard, Peripheral},
 };
 
 mod calibration;
@@ -389,6 +389,7 @@ pub struct Adc<'d, ADC> {
     _adc: PeripheralRef<'d, ADC>,
     active_channel: Option<u8>,
     last_init_code: u16,
+    _guard: GenericPeripheralGuard<{ Peripheral::ApbSarAdc as u8 }>,
 }
 
 impl<'d, ADCI> Adc<'d, ADCI>
@@ -401,10 +402,7 @@ where
         adc_instance: impl crate::peripheral::Peripheral<P = ADCI> + 'd,
         config: AdcConfig<ADCI>,
     ) -> Self {
-        if PeripheralClockControl::enable(Peripheral::ApbSarAdc, true) {
-            PeripheralClockControl::reset(Peripheral::ApbSarAdc);
-        }
-
+        let guard = GenericPeripheralGuard::new();
         let sensors = unsafe { &*SENS::ptr() };
 
         // Set attenuation for pins
@@ -473,6 +471,7 @@ where
             _adc: adc_instance.into_ref(),
             active_channel: None,
             last_init_code: 0,
+            _guard: guard,
         }
     }
 
@@ -561,12 +560,6 @@ where
     }
 }
 
-impl<ADCI> Drop for Adc<'_, ADCI> {
-    fn drop(&mut self) {
-        PeripheralClockControl::enable(Peripheral::ApbSarAdc, false);
-    }
-}
-
 #[cfg(esp32s3)]
 impl super::AdcCalEfuse for crate::peripherals::ADC1 {
     fn init_code(atten: Attenuation) -> Option<u16> {

esp-hal/src/ecc.rs

@@ -32,7 +32,7 @@ use crate::{
     peripheral::{Peripheral, PeripheralRef},
     peripherals::{Interrupt, ECC},
     reg_access::{AlignmentHelper, SocDependentEndianess},
-    system::{Peripheral as PeripheralEnable, PeripheralClockControl},
+    system::{self, GenericPeripheralGuard},
     InterruptConfigurable,
 };
 
@@ -41,6 +41,7 @@ pub struct Ecc<'d, DM: crate::Mode> {
     ecc: PeripheralRef<'d, ECC>,
     alignment_helper: AlignmentHelper<SocDependentEndianess>,
     phantom: PhantomData<DM>,
+    _guard: GenericPeripheralGuard<{ system::Peripheral::Ecc as u8 }>,
 }
 
 /// ECC interface error
@@ -102,14 +103,13 @@ impl<'d> Ecc<'d, crate::Blocking> {
     pub fn new(ecc: impl Peripheral<P = ECC> + 'd) -> Self {
         crate::into_ref!(ecc);
 
-        if PeripheralClockControl::enable(PeripheralEnable::Ecc, true) {
-            PeripheralClockControl::reset(PeripheralEnable::Ecc);
-        }
+        let guard = GenericPeripheralGuard::new();
 
         Self {
             ecc,
             alignment_helper: AlignmentHelper::default(),
             phantom: PhantomData,
+            _guard: guard,
         }
     }
 }
@@ -965,9 +965,3 @@ impl<DM: crate::Mode> Ecc<'_, DM> {
         }
     }
 }
-
-impl<DM: crate::Mode> Drop for Ecc<'_, DM> {
-    fn drop(&mut self) {
-        PeripheralClockControl::enable(PeripheralEnable::Ecc, false);
-    }
-}

esp-hal/src/etm.rs

@@ -59,7 +59,7 @@
 
 use crate::{
     peripheral::{Peripheral, PeripheralRef},
-    system::PeripheralClockControl,
+    system::GenericPeripheralGuard,
 };
 
 /// Unconfigured EtmChannel.
@@ -75,11 +75,8 @@ impl<const C: u8> EtmChannel<C> {
         E: EtmEvent,
         T: EtmTask,
     {
-        if PeripheralClockControl::enable(crate::system::Peripheral::Etm, true) {
-            PeripheralClockControl::reset(crate::system::Peripheral::Etm);
-        }
-
         let etm = unsafe { crate::peripherals::SOC_ETM::steal() };
+        let guard = GenericPeripheralGuard::new();
 
         etm.ch(C as usize)
             .evt_id()
@@ -96,6 +93,7 @@ impl<const C: u8> EtmChannel<C> {
         EtmConfiguredChannel {
             _event: event,
             _task: task,
+            _guard: guard,
         }
     }
 }
@@ -121,6 +119,7 @@ where
 {
     _event: &'a E,
     _task: &'a T,
+    _guard: GenericPeripheralGuard<{ crate::system::Peripheral::Etm as u8 }>,
 }
 
 impl<E, T, const C: u8> Drop for EtmConfiguredChannel<'_, E, T, C>
@@ -131,7 +130,6 @@ where
     fn drop(&mut self) {
         debug!("Drop ETM channel {}", C);
         disable_channel(C);
-        PeripheralClockControl::enable(crate::system::Peripheral::Etm, false);
     }
 }
 
@@ -156,7 +154,7 @@ macro_rules! create_etm {
 
                     Self {
                         _peripheral: peripheral,
-                        $([< channel $num >]: EtmChannel {},)+
+                        $([< channel $num >]: EtmChannel { },)+
                     }
                 }
             }

esp-hal/src/hmac.rs

@@ -40,7 +40,7 @@ use crate::{
     peripheral::{Peripheral, PeripheralRef},
     peripherals::HMAC,
     reg_access::{AlignmentHelper, SocDependentEndianess},
-    system::{Peripheral as PeripheralEnable, PeripheralClockControl},
+    system::{GenericPeripheralGuard, Peripheral as PeripheralEnable},
 };
 
 /// Provides an interface for interacting with the HMAC hardware peripheral.
@@ -51,6 +51,7 @@ pub struct Hmac<'d> {
     alignment_helper: AlignmentHelper<SocDependentEndianess>,
     byte_written: usize,
     next_command: NextCommand,
+    _guard: GenericPeripheralGuard<{ PeripheralEnable::Hmac as u8 }>,
 }
 
 /// HMAC interface error
@@ -107,15 +108,14 @@ impl<'d> Hmac<'d> {
     pub fn new(hmac: impl Peripheral<P = HMAC> + 'd) -> Self {
         crate::into_ref!(hmac);
 
-        if PeripheralClockControl::enable(PeripheralEnable::Hmac, true) {
-            PeripheralClockControl::reset(PeripheralEnable::Hmac);
-        }
+        let guard = GenericPeripheralGuard::new();
 
         Self {
             hmac,
             alignment_helper: AlignmentHelper::default(),
             byte_written: 64,
             next_command: NextCommand::None,
+            _guard: guard,
         }
     }
 
@@ -346,9 +346,3 @@ impl<'d> Hmac<'d> {
         while self.is_busy() {}
     }
 }
-
-impl Drop for Hmac<'_> {
-    fn drop(&mut self) {
-        PeripheralClockControl::enable(PeripheralEnable::Hmac, false);
-    }
-}

esp-hal/src/lcd_cam/cam.rs

@@ -82,7 +82,7 @@ use crate::{
     lcd_cam::{calculate_clkm, BitOrder, ByteOrder},
     peripheral::{Peripheral, PeripheralRef},
     peripherals::LCD_CAM,
-    system::PeripheralGuard,
+    system::{self, GenericPeripheralGuard},
     Blocking,
 };
 
@@ -122,14 +122,14 @@ pub enum VsyncFilterThreshold {
 pub struct Cam<'d> {
     /// The LCD_CAM peripheral reference for managing the camera functionality.
     pub(crate) lcd_cam: PeripheralRef<'d, LCD_CAM>,
-    pub(super) _guard: PeripheralGuard,
+    pub(super) _guard: GenericPeripheralGuard<{ system::Peripheral::LcdCam as u8 }>,
 }
 
 /// Represents the camera interface with DMA support.
 pub struct Camera<'d> {
     lcd_cam: PeripheralRef<'d, LCD_CAM>,
     rx_channel: ChannelRx<'d, Blocking, <LCD_CAM as DmaEligible>::Dma>,
-    _guard: PeripheralGuard,
+    _guard: GenericPeripheralGuard<{ system::Peripheral::LcdCam as u8 }>,
 }
 
 impl<'d> Camera<'d> {

esp-hal/src/lcd_cam/lcd/mod.rs

@@ -10,7 +10,12 @@
 //! ## Implementation State
 //! - RGB is not supported yet
 
-use crate::{peripheral::PeripheralRef, peripherals::LCD_CAM, system::PeripheralGuard};
+use super::GenericPeripheralGuard;
+use crate::{
+    peripheral::PeripheralRef,
+    peripherals::LCD_CAM,
+    system::{self},
+};
 
 pub mod dpi;
 pub mod i8080;
@@ -23,7 +28,7 @@ pub struct Lcd<'d, DM: crate::Mode> {
     /// A marker for the mode of operation (blocking or asynchronous).
     pub(crate) _mode: core::marker::PhantomData<DM>,
 
-    pub(super) _guard: PeripheralGuard,
+    pub(super) _guard: GenericPeripheralGuard<{ system::Peripheral::LcdCam as u8 }>,
 }
 
 #[derive(Debug, Clone, Copy, PartialEq, Default)]

esp-hal/src/lcd_cam/mod.rs

@@ -18,7 +18,7 @@ use crate::{
     macros::handler,
     peripheral::Peripheral,
     peripherals::{Interrupt, LCD_CAM},
-    system::{self, PeripheralGuard},
+    system::GenericPeripheralGuard,
     Async,
     Blocking,
     Cpu,
@@ -38,8 +38,8 @@ impl<'d> LcdCam<'d, Blocking> {
     pub fn new(lcd_cam: impl Peripheral<P = LCD_CAM> + 'd) -> Self {
         crate::into_ref!(lcd_cam);
 
-        let lcd_guard = PeripheralGuard::new(system::Peripheral::LcdCam);
-        let cam_guard = PeripheralGuard::new(system::Peripheral::LcdCam);
+        let lcd_guard = GenericPeripheralGuard::new();
+        let cam_guard = GenericPeripheralGuard::new();
 
         Self {
             lcd: Lcd {