drivers: udc: disable SOF interrupt by default

jfischer-no · fabiobaltieri · commit 7b287ec133cc · 2025-06-23T15:43:32.000+01:00
If the new Kconfig option is disabled, no SOF events are passed to the
higher layer.

Signed-off-by: Johann Fischer &lt;johann.fischer@nordicsemi.no&gt;
diff --git a/drivers/usb/udc/udc_ambiq.c b/drivers/usb/udc/udc_ambiq.c
@@ -156,8 +156,9 @@ static void udc_ambiq_evt_callback(const struct device *dev, am_hal_usb_dev_even
 	case AM_HAL_USB_DEV_EVT_BUS_RESET:
 		/* enable usb bus interrupts */
 		am_hal_usb_intr_usb_enable(priv->usb_handle,
-					   USB_CFG2_SOFE_Msk | USB_CFG2_ResumeE_Msk |
-						   USB_CFG2_SuspendE_Msk | USB_CFG2_ResetE_Msk);
+					   IF_ENABLED(CONFIG_UDC_ENABLE_SOF, (USB_CFG2_SOFE_Msk |))
+					   USB_CFG2_ResumeE_Msk |
+					   USB_CFG2_SuspendE_Msk | USB_CFG2_ResetE_Msk);
 		/* init the endpoint */
 		am_hal_usb_ep_init(priv->usb_handle, 0, 0, EP0_MPS);
 		/* Set USB device speed to HAL */
@@ -174,7 +175,7 @@ static void udc_ambiq_evt_callback(const struct device *dev, am_hal_usb_dev_even
 		udc_submit_event(dev, UDC_EVT_RESUME, 0);
 		break;
 	case AM_HAL_USB_DEV_EVT_SOF:
-		udc_submit_event(dev, UDC_EVT_SOF, 0);
+		udc_submit_sof_event(dev);
 		break;
 	case AM_HAL_USB_DEV_EVT_SUSPEND:
 		/* Handle USB Suspend event, then set device state to suspended */
diff --git a/drivers/usb/udc/udc_dwc2.c b/drivers/usb/udc/udc_dwc2.c
@@ -2162,11 +2162,12 @@ static int udc_dwc2_init_controller(const struct device *dev)
 	}
 
 	/* Unmask interrupts */
-	sys_write32(USB_DWC2_GINTSTS_OEPINT | USB_DWC2_GINTSTS_IEPINT |
+	sys_write32(IF_ENABLED(CONFIG_UDC_ENABLE_SOF, (USB_DWC2_GINTSTS_SOF |
+						       USB_DWC2_GINTSTS_INCOMPISOOUT |
+						       USB_DWC2_GINTSTS_INCOMPISOIN |))
+		    USB_DWC2_GINTSTS_OEPINT | USB_DWC2_GINTSTS_IEPINT |
 		    USB_DWC2_GINTSTS_ENUMDONE | USB_DWC2_GINTSTS_USBRST |
-		    USB_DWC2_GINTSTS_WKUPINT | USB_DWC2_GINTSTS_USBSUSP |
-		    USB_DWC2_GINTSTS_INCOMPISOOUT | USB_DWC2_GINTSTS_INCOMPISOIN |
-		    USB_DWC2_GINTSTS_SOF,
+		    USB_DWC2_GINTSTS_WKUPINT | USB_DWC2_GINTSTS_USBSUSP,
 		    (mem_addr_t)&base->gintmsk);
 
 	return 0;
@@ -2890,15 +2891,16 @@ static void udc_dwc2_isr_handler(const struct device *dev)
 
 		LOG_DBG("GINTSTS 0x%x", int_status);
 
-		if (int_status & USB_DWC2_GINTSTS_SOF) {
+		if (IS_ENABLED(CONFIG_UDC_ENABLE_SOF) &&
+		    int_status & USB_DWC2_GINTSTS_SOF) {
 			uint32_t dsts;
 
 			/* Clear USB SOF interrupt. */
 			sys_write32(USB_DWC2_GINTSTS_SOF, gintsts_reg);
 
 			dsts = sys_read32((mem_addr_t)&base->dsts);
 			priv->sof_num = usb_dwc2_get_dsts_soffn(dsts);
-			udc_submit_event(dev, UDC_EVT_SOF, 0);
+			udc_submit_sof_event(dev);
 		}
 
 		if (int_status & USB_DWC2_GINTSTS_USBRST) {
@@ -2941,11 +2943,13 @@ static void udc_dwc2_isr_handler(const struct device *dev)
 			dwc2_handle_oepint(dev);
 		}
 
-		if (int_status & USB_DWC2_GINTSTS_INCOMPISOIN) {
+		if (IS_ENABLED(CONFIG_UDC_ENABLE_SOF) &&
+		    int_status & USB_DWC2_GINTSTS_INCOMPISOIN) {
 			dwc2_handle_incompisoin(dev);
 		}
 
-		if (int_status & USB_DWC2_GINTSTS_INCOMPISOOUT) {
+		if (IS_ENABLED(CONFIG_UDC_ENABLE_SOF) &&
+		    int_status & USB_DWC2_GINTSTS_INCOMPISOOUT) {
 			dwc2_handle_incompisoout(dev);
 		}
 
diff --git a/drivers/usb/udc/udc_it82xx2.c b/drivers/usb/udc/udc_it82xx2.c
@@ -17,9 +17,6 @@ LOG_MODULE_REGISTER(udc_it82xx2, CONFIG_UDC_DRIVER_LOG_LEVEL);
 
 #define DT_DRV_COMPAT ite_it82xx2_usb
 
-/* TODO: Replace this definition by Kconfig option */
-#define USB_DEVICE_CONFIG_SOF_NOTIFICATIONS (0U)
-
 #define IT8XXX2_IS_EXTEND_ENDPOINT(n) (USB_EP_GET_IDX(n) >= 4)
 
 #define IT82xx2_STATE_OUT_SHARED_FIFO_BUSY 0
@@ -1357,11 +1354,11 @@ static void it82xx2_usb_dc_isr(const void *arg)
 
 	/* sof received */
 	if (status & DC_SOF_RECEIVED) {
-		if (!USB_DEVICE_CONFIG_SOF_NOTIFICATIONS) {
+		if (!IS_ENABLED(CONFIG_UDC_ENABLE_SOF)) {
 			it82xx2_enable_sof_int(dev, false);
 		} else {
 			usb_regs->dc_interrupt_status = DC_SOF_RECEIVED;
-			udc_submit_event(dev, UDC_EVT_SOF, 0);
+			udc_submit_sof_event(dev);
 		}
 		it82xx2_enable_resume_int(dev, false);
 		emit_resume_event(dev);
@@ -1411,7 +1408,7 @@ static void suspended_handler(struct k_work *item)
 
 	it82xx2_enable_resume_int(dev, true);
 
-	if (!USB_DEVICE_CONFIG_SOF_NOTIFICATIONS) {
+	if (!IS_ENABLED(CONFIG_UDC_ENABLE_SOF)) {
 		it82xx2_enable_sof_int(dev, true);
 	}
 
diff --git a/drivers/usb/udc/udc_kinetis.c b/drivers/usb/udc/udc_kinetis.c
@@ -653,7 +653,7 @@ static void usbfsotg_isr_handler(const struct device *dev)
 	}
 
 	if (istatus == USB_ISTAT_SOFTOK_MASK) {
-		udc_submit_event(dev, UDC_EVT_SOF, 0);
+		udc_submit_sof_event(dev);
 	}
 
 	if (istatus == USB_ISTAT_ERROR_MASK) {
@@ -1016,7 +1016,7 @@ static int usbfsotg_init(const struct device *dev)
 	base->INTEN = (USB_INTEN_SLEEPEN_MASK  |
 		       USB_INTEN_STALLEN_MASK |
 		       USB_INTEN_TOKDNEEN_MASK |
-		       USB_INTEN_SOFTOKEN_MASK |
+		       IF_ENABLED(CONFIG_UDC_ENABLE_SOF, (USB_INTEN_SOFTOKEN_MASK |))
 		       USB_INTEN_ERROREN_MASK |
 		       USB_INTEN_USBRSTEN_MASK);
 
diff --git a/drivers/usb/udc/udc_max32.c b/drivers/usb/udc/udc_max32.c
@@ -533,7 +533,7 @@ static int udc_max32_event_callback(maxusb_event_t event, void *cbdata)
 	case MAXUSB_EVENT_DPACT:
 		LOG_DBG("DPACT event occurred");
 		udc_set_suspended(dev, false);
-		udc_submit_event(dev, UDC_EVT_SOF, 0);
+		udc_submit_sof_event(dev);
 		break;
 	case MAXUSB_EVENT_BRST:
 		LOG_DBG("BRST event occurred");
diff --git a/drivers/usb/udc/udc_mcux_ehci.c b/drivers/usb/udc/udc_mcux_ehci.c
@@ -531,7 +531,7 @@ usb_status_t USB_DeviceNotificationTrigger(void *handle, void *msg)
 		udc_submit_event(dev, UDC_EVT_VBUS_READY, 0);
 		break;
 	case kUSB_DeviceNotifySOF:
-		udc_submit_event(dev, UDC_EVT_SOF, 0);
+		udc_submit_sof_event(dev);
 		break;
 	default:
 		udc_mcux_event_submit(dev, mcux_msg);
diff --git a/drivers/usb/udc/udc_mcux_ip3511.c b/drivers/usb/udc/udc_mcux_ip3511.c
@@ -531,7 +531,7 @@ usb_status_t USB_DeviceNotificationTrigger(void *handle, void *msg)
 		udc_submit_event(dev, UDC_EVT_VBUS_READY, 0);
 		break;
 	case kUSB_DeviceNotifySOF:
-		udc_submit_event(dev, UDC_EVT_SOF, 0);
+		udc_submit_sof_event(dev);
 		break;
 	default:
 		udc_mcux_event_submit(dev, mcux_msg);
diff --git a/drivers/usb/udc/udc_nrf.c b/drivers/usb/udc/udc_nrf.c
@@ -436,7 +436,7 @@ static void ev_sof_handler(void)
 
 	m_ep_armed &= ~USBD_EPISO_BIT_MASK;
 
-	udc_submit_event(udc_nrf_dev, UDC_EVT_SOF, 0);
+	udc_submit_sof_event(udc_nrf_dev);
 }
 
 static void usbd_in_packet_sent(uint8_t ep)
@@ -1547,7 +1547,7 @@ static void udc_nrf_power_handler(nrfx_power_usb_evt_t pwr_evt)
 		break;
 	case NRFX_POWER_USB_EVT_READY:
 		LOG_DBG("POWER event ready");
-		nrf_usbd_legacy_start(true);
+		nrf_usbd_legacy_start(IS_ENABLED(CONFIG_UDC_ENABLE_SOF));
 		break;
 	case NRFX_POWER_USB_EVT_REMOVED:
 		LOG_DBG("POWER event removed");
diff --git a/drivers/usb/udc/udc_numaker.c b/drivers/usb/udc/udc_numaker.c
@@ -171,7 +171,9 @@ static inline void numaker_usbd_sw_connect(const struct device *dev)
 	base->INTSTS = base->INTSTS;
 
 	/* Enable relevant interrupts */
-	base->INTEN = USBD_INT_BUS | USBD_INT_USB | USBD_INT_FLDET | USBD_INT_WAKEUP | USBD_INT_SOF;
+	base->INTEN = USBD_INT_BUS | USBD_INT_USB | USBD_INT_FLDET |
+		      IF_ENABLED(CONFIG_UDC_ENABLE_SOF, (USBD_INT_SOF |))
+		      USBD_INT_WAKEUP;
 
 	/* Clear SE0 for connect */
 	base->SE0 &= ~USBD_DRVSE0;
@@ -1298,7 +1300,7 @@ static void numaker_udbd_isr(const struct device *dev)
 		base->INTSTS = USBD_INTSTS_SOFIF_Msk;
 
 		/* UDC stack would handle bottom-half processing */
-		udc_submit_event(dev, UDC_EVT_SOF, 0);
+		udc_submit_sof_event(dev);
 	}
 
 	/* USB Setup/EP */
diff --git a/drivers/usb/udc/udc_renesas_ra.c b/drivers/usb/udc/udc_renesas_ra.c
@@ -79,7 +79,7 @@ static void udc_renesas_ra_event_handler(usbd_callback_arg_t *p_args)
 		break;
 
 	case USBD_EVENT_SOF:
-		udc_submit_event(dev, UDC_EVT_SOF, 0);
+		udc_submit_sof_event(dev);
 		break;
 
 	default:
diff --git a/drivers/usb/udc/udc_rpi_pico.c b/drivers/usb/udc/udc_rpi_pico.c
@@ -678,7 +678,7 @@ static void rpi_pico_isr_handler(const struct device *dev)
 
 	if (status & USB_INTS_DEV_SOF_BITS) {
 		handled |= USB_INTS_DEV_SOF_BITS;
-		sys_read32((mm_reg_t)&base->sof_rd);
+		udc_submit_sof_event(dev);
 	}
 
 	if (status & USB_INTS_DEV_CONN_DIS_BITS) {
@@ -1048,7 +1048,7 @@ static int udc_rpi_pico_enable(const struct device *dev)
 	sys_write32(USB_SIE_CTRL_EP0_INT_1BUF_BITS, (mm_reg_t)&base->sie_ctrl);
 
 	/* Enable interrupts */
-	sys_write32(USB_INTE_DEV_SOF_BITS |
+	sys_write32(IF_ENABLED(CONFIG_UDC_ENABLE_SOF, (USB_INTE_DEV_SOF_BITS |))
 		    USB_INTE_SETUP_REQ_BITS |
 		    USB_INTE_DEV_RESUME_FROM_HOST_BITS |
 		    USB_INTE_DEV_SUSPEND_BITS |
diff --git a/drivers/usb/udc/udc_sam0.c b/drivers/usb/udc/udc_sam0.c
@@ -693,7 +693,7 @@ static void sam0_isr_handler(const struct device *dev)
 	base->INTFLAG.reg = intflag;
 
 	if (intflag & USB_DEVICE_INTFLAG_SOF) {
-		udc_submit_event(dev, UDC_EVT_SOF, 0);
+		udc_submit_sof_event(dev);
 	}
 
 	if (intflag & USB_DEVICE_INTFLAG_EORST) {
diff --git a/drivers/usb/udc/udc_skeleton.c b/drivers/usb/udc/udc_skeleton.c
@@ -233,6 +233,10 @@ static int udc_skeleton_init(const struct device *dev)
 		return -EIO;
 	}
 
+	if (IS_ENABLED(CONFIG_UDC_ENABLE_SOF)) {
+		LOG_INF("Enable SOF interrupt");
+	}
+
 	return 0;
 }
 
diff --git a/drivers/usb/udc/udc_stm32.c b/drivers/usb/udc/udc_stm32.c
@@ -182,7 +182,7 @@ void HAL_PCD_SOFCallback(PCD_HandleTypeDef *hpcd)
 {
 	struct udc_stm32_data *priv = hpcd2data(hpcd);
 
-	udc_submit_event(priv->dev, UDC_EVT_SOF, 0);
+	udc_submit_sof_event(priv->dev);
 }
 
 static int usbd_ctrl_feed_dout(const struct device *dev, const size_t length)
diff --git a/subsys/usb/device_next/class/Kconfig.uac2 b/subsys/usb/device_next/class/Kconfig.uac2
@@ -4,6 +4,7 @@
 
 config USBD_AUDIO2_CLASS
 	bool "USB Audio 2 class support [EXPERIMENTAL]"
+	select UDC_ENABLE_SOF
 	help
 	  USB Audio 2 device class support.
 
diff --git a/tests/drivers/udc/prj.conf b/tests/drivers/udc/prj.conf
@@ -5,6 +5,7 @@ CONFIG_LOG=y
 CONFIG_ZTEST=y
 
 CONFIG_UDC_DRIVER=y
+CONFIG_UDC_ENABLE_SOF=y
 CONFIG_UDC_BUF_COUNT=16
 CONFIG_UDC_BUF_POOL_SIZE=16384
 CONFIG_UDC_DRIVER_LOG_LEVEL_INF=y
diff --git a/tests/subsys/usb/device_next/prj.conf b/tests/subsys/usb/device_next/prj.conf
@@ -6,6 +6,7 @@ CONFIG_ZTEST=y
 
 CONFIG_USB_DEVICE_STACK_NEXT=y
 CONFIG_USBD_LOOPBACK_CLASS=y
+CONFIG_UDC_ENABLE_SOF=y
 
 CONFIG_UHC_DRIVER=y
 CONFIG_USB_HOST_STACK=y

Original file line number	Diff line number	Diff line change
`@@ -653,7 +653,7 @@ static void usbfsotg_isr_handler(const struct device *dev)`
`653`	`653`	`}`
`654`	`654`
`655`	`655`	`if (istatus == USB_ISTAT_SOFTOK_MASK) {`
`656`		`- udc_submit_event(dev, UDC_EVT_SOF, 0);`
	`656`	`+ udc_submit_sof_event(dev);`
`657`	`657`	`}`
`658`	`658`
`659`	`659`	`if (istatus == USB_ISTAT_ERROR_MASK) {`
`@@ -1016,7 +1016,7 @@ static int usbfsotg_init(const struct device *dev)`
`1016`	`1016`	`base->INTEN = (USB_INTEN_SLEEPEN_MASK \|`
`1017`	`1017`	`USB_INTEN_STALLEN_MASK \|`
`1018`	`1018`	`USB_INTEN_TOKDNEEN_MASK \|`
`1019`		`- USB_INTEN_SOFTOKEN_MASK \|`
	`1019`	`+ IF_ENABLED(CONFIG_UDC_ENABLE_SOF, (USB_INTEN_SOFTOKEN_MASK \|))`
`1020`	`1020`	`USB_INTEN_ERROREN_MASK \|`
`1021`	`1021`	`USB_INTEN_USBRSTEN_MASK);`
`1022`	`1022`