Merge "usb: dwc3-msm: Add usb_ep_autoconfig_by_name" (b49d4cf2) · Commits · e / devices / android_kernel_fairphone_FP5

drivers/usb/dwc3/dwc3-msm.c

+45 −0

Original line number	Diff line number	Diff line
		@@ -1861,6 +1861,51 @@ static int dbm_ep_config(struct dwc3_msm *mdwc, u8 usb_ep, u8 bam_pipe,
		return dbm_ep;
		}

		/**
		* usb_ep_autoconfig_by_name - Used to pick the endpoint by name. eg gsi-epin1
		* @gadget: The device to which the endpoint must belong.
		* @desc: Endpoint descriptor, with endpoint direction and transfer mode
		* initialized.
		* @ep_name: EP name that is to be searched.
		*
		*/
		struct usb_ep *usb_ep_autoconfig_by_name(
		struct usb_gadget *gadget,
		struct usb_endpoint_descriptor *desc,
		const char *ep_name
		)
		{
		struct usb_ep *ep;
		struct dwc3_ep *dep;
		bool ep_found = false;

		if (!ep_name \|\| !strlen(ep_name))
		goto err;

		list_for_each_entry(ep, &gadget->ep_list, ep_list)
		if (strncmp(ep->name, ep_name, strlen(ep_name)) == 0 &&
		!ep->driver_data) {
		ep_found = true;
		break;
		}

		if (ep_found) {
		dep = to_dwc3_ep(ep);
		desc->bEndpointAddress &= USB_DIR_IN;
		desc->bEndpointAddress \|= dep->number >> 1;
		ep->address = desc->bEndpointAddress;
		pr_debug("Allocating ep address:%x\n", ep->address);
		ep->desc = NULL;
		ep->comp_desc = NULL;
		return ep;
		}

		err:
		pr_err("%s:error finding ep %s\n", __func__, ep_name);
		return NULL;
		}
		EXPORT_SYMBOL(usb_ep_autoconfig_by_name);

		/**
		* Configure MSM endpoint.
		* This function do specific configurations

+6 −0

Original line number	Diff line number	Diff line
		@@ -112,6 +112,8 @@ struct gsi_channel_info {
		};

		#if IS_ENABLED(CONFIG_USB_DWC3_MSM)
		struct usb_ep usb_ep_autoconfig_by_name(struct usb_gadget gadget,
		struct usb_endpoint_descriptor desc, const char ep_name);
		int usb_gsi_ep_op(struct usb_ep ep, void op_data, enum gsi_ep_op op);
		int msm_ep_config(struct usb_ep ep, struct usb_request request, u32 bam_opts);
		int msm_ep_unconfig(struct usb_ep *ep);
		@@ -121,6 +123,10 @@ int msm_data_fifo_config(struct usb_ep *ep, unsigned long addr, u32 size,
		bool msm_dwc3_reset_ep_after_lpm(struct usb_gadget *gadget);
		int msm_dwc3_reset_dbm_ep(struct usb_ep *ep);
		#else
		static inline struct usb_ep *usb_ep_autoconfig_by_name(
		struct usb_gadget gadget, struct usb_endpoint_descriptor desc,
		const char *ep_name)
		{ return NULL; }
		static inline int usb_gsi_ep_op(struct usb_ep ep, void op_data,
		enum gsi_ep_op op)
		{ return 0; }