From 93ade5bda079b5a0432491eebc2dd12301c126f2 Mon Sep 17 00:00:00 2001
From: doryan <sagiev2015@yandex.ru>
Date: Thu, 15 May 2025 10:23:43 +0400
Subject: [PATCH] fix: add clearing interrupts

---
 src/lib.rs | 35 +++++++++++++++++++++++++++--------
 1 file changed, 27 insertions(+), 8 deletions(-)

diff --git a/src/lib.rs b/src/lib.rs
index 82469a4..a6b1800 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -157,7 +157,8 @@ impl<const L: usize> UsbBus for UsbDevice<L> {
             let (udint, udien, usbint) = (usb.udint.read(), usb.udien.read(), usb.usbint.read());
 
             if usbint.vbusti().bit_is_set() {
-                usb.usbint.write(|w| w.vbusti().clear_bit());
+                usb.usbint
+                    .write(|w| unsafe { w.bits(USBINT_CLEAR) }.vbusti().clear_bit());
 
                 if usb.usbsta.read().vbus().bit_is_set() {
                     return PollResult::Resume;
@@ -179,7 +180,8 @@ impl<const L: usize> UsbBus for UsbDevice<L> {
             }
 
             if udint.sofi().bit_is_set() {
-                usb.udint.write(|w| w.sofi().clear_bit());
+                usb.udint
+                    .write(|w| unsafe { w.bits(UDINT_CLEAR) }.sofi().clear_bit());
             }
 
             if usb.usbcon.read().frzclk().bit_is_clear() {
@@ -293,8 +295,13 @@ impl<const L: usize> UsbBus for UsbDevice<L> {
 
             // Clear resume informations. //
 
-            usb.udint
-                .write(|w| w.wakeupi().clear_bit().suspi().clear_bit());
+            usb.udint.write(|w| {
+                unsafe { w.bits(UDINT_CLEAR) }
+                    .wakeupi()
+                    .clear_bit()
+                    .suspi()
+                    .clear_bit()
+            });
 
             usb.udien
                 .modify(|_, w| w.wakeupe().clear_bit().suspe().set_bit());
@@ -316,8 +323,13 @@ impl<const L: usize> UsbBus for UsbDevice<L> {
 
             usb.usbcon.modify(|_, w| w.frzclk().clear_bit());
 
-            usb.udint
-                .write(|w| w.wakeupi().clear_bit().suspi().clear_bit());
+            usb.udint.write(|w| {
+                unsafe { w.bits(UDINT_CLEAR) }
+                    .wakeupi()
+                    .clear_bit()
+                    .suspi()
+                    .clear_bit()
+            });
 
             usb.udien
                 .modify(|_, w| w.wakeupe().clear_bit().suspe().set_bit());
@@ -355,8 +367,13 @@ impl<const L: usize> UsbBus for UsbDevice<L> {
         free(|cs| {
             let (usb, pll) = (self.usb.borrow(cs), self.pll.borrow(cs));
 
-            usb.udint
-                .write(|w| w.wakeupi().clear_bit().suspi().clear_bit());
+            usb.udint.write(|w| {
+                unsafe { w.bits(UDINT_CLEAR) }
+                    .wakeupi()
+                    .clear_bit()
+                    .suspi()
+                    .clear_bit()
+            });
 
             // Suspend. //
 
@@ -440,3 +457,5 @@ impl<const L: usize> UsbBus for UsbDevice<L> {
 }
 
 const RESTRICT_RW_FLAG: u8 = !(1 << 5);
+const USBINT_CLEAR: u8 = !(1 << 0);
+const UDINT_CLEAR: u8 = !(1 << 1 | 1 << 7);