drivers: udc: add SOF Kconfig option and SOF event helper (2d799574) · Commits · Wenxi XU / zephyr

drivers/usb/udc/Kconfig

+6 −0

Changes for drivers/usb/udc/Kconfig: 6 added lines, 0 removed lines.
Original line number	Diff line number	Diff line
		@@ -42,6 +42,12 @@ config UDC_BUF_FORCE_NOCACHE
		Place the buffer pools in the nocache memory region if the driver
		cannot handle buffers in cached memory.

		config UDC_ENABLE_SOF
		bool "SOF interrupt processing"
		help
		Enabled SoF interrupts can cause a very high CPU load on high-speed
		controllers because the interrupt rate would be 125 µs.

		config UDC_WORKQUEUE
		bool "Use a dedicate work queue for UDC drivers"
		help

+23 −0

Changes for drivers/usb/udc/udc_common.h: 23 added lines, 0 removed lines.
Original line number	Diff line number	Diff line
		@@ -156,6 +156,29 @@ int udc_submit_event(const struct device *dev,
		int udc_submit_ep_event(const struct device *dev,
		struct net_buf *const buf,
		const int err);

		/**
		* @brief Helper function to send UDC SOF event to a higher level.
		*
		* Type of this event is hardcoded to UDC_EVT_SOF.
		*
		* @param[in] dev Pointer to device struct of the driver instance
		*/
		#if defined(CONFIG_UDC_ENABLE_SOF)
		static inline void udc_submit_sof_event(const struct device *dev)
		{
		struct udc_data *data = dev->data;
		struct udc_event drv_evt = {
		.type = UDC_EVT_SOF,
		.dev = dev,
		};

		(void)data->event_cb(dev, &drv_evt);
		}
		#else
		#define udc_submit_sof_event(dev) ARG_UNUSED(dev)
		#endif

		/**
		* @brief Helper function to enable endpoint.
		*