Merge "usb: gadget: f_gsi: use accelerated EP for ECM IN with cv2x" (51336dad) · Commits · e / devices / android_kernel_fairphone_FP3

drivers/usb/gadget/function/f_gsi.c

+44 −18

Original line number	Diff line number	Diff line
		@@ -2429,9 +2429,12 @@ static int gsi_set_alt(struct usb_function *f, unsigned int intf,
		{
		struct f_gsi *gsi = func_to_gsi(f);
		struct f_gsi *gsi_rmnet_v2x = __gsi[USB_PROT_RMNET_V2X_IPA];
		struct f_gsi *gsi_ecm = __gsi[USB_PROT_ECM_IPA];
		struct usb_composite_dev *cdev = f->config->cdev;
		struct net_device *net;
		int ret;
		int in_intr_num = 0;
		int out_intr_num = 0;

		log_event_dbg("intf=%u, alt=%u", intf, alt);

		@@ -2504,21 +2507,49 @@ static int gsi_set_alt(struct usb_function *f, unsigned int intf,
		}

		/*
		* Configure EPs for GSI. Note that when both RmNet LTE
		* (or ECM) and RmNet V2X instances are enabled in a
		* composition, configure HW accelerated EPs for V2X
		* instance and normal EPs for LTE (or ECM).
		* Configure EPs for GSI. Note that:
		* 1. In general, configure HW accelerated EPs for all
		* instances.
		* 2. If both RmNet LTE and RmNet V2X instances are
		* enabled in a composition, configure HW accelerated
		* EPs for V2X and normal EPs for LTE.
		* 3. If RmNet V2X, ECM and ADPL instances are enabled
		* in a composition, configure HW accelerated EPs in
		* both directions for V2X and IN direction for ECM.
		* Configure normal EPs for ECM OUT and ADPL.
		*/
		switch (gsi->prot_id) {
		case USB_PROT_RMNET_IPA:
		if (!gsi_rmnet_v2x->function.fs_descriptors) {
		in_intr_num = 2;
		out_intr_num = 1;
		}
		break;
		case USB_PROT_ECM_IPA:
		/* If v2x is used then only IN/DL uses GSI EP */
		if (gsi_rmnet_v2x->function.fs_descriptors) {
		in_intr_num = 3;
		out_intr_num = 0;
		} else {
		in_intr_num = 2;
		out_intr_num = 1;
		}
		break;
		case USB_PROT_DIAG_IPA:
		/* DPL to use normal EP if used with ECM+cv2x */
		if (!(gsi_ecm->function.fs_descriptors &&
		gsi_rmnet_v2x->function.fs_descriptors))
		in_intr_num = 3;
		break;
		default:
		in_intr_num = 2;
		out_intr_num = 1;
		}

		/* gsi_configure_ep required only for GSI-IPA EPs */
		if (gsi->d_port.in_ep &&
		gsi->prot_id <= USB_PROT_RMNET_V2X_IPA) {
		if (gsi->prot_id == USB_PROT_DIAG_IPA)
		gsi->d_port.in_ep->ep_intr_num = 3;
		else if ((gsi->prot_id == USB_PROT_RMNET_IPA \|\|
		gsi->prot_id == USB_PROT_ECM_IPA) &&
		gsi_rmnet_v2x->function.fs_descriptors)
		gsi->d_port.in_ep->ep_intr_num = 0;
		else
		gsi->d_port.in_ep->ep_intr_num = 2;
		gsi->d_port.in_ep->ep_intr_num = in_intr_num;
		usb_gsi_ep_op(gsi->d_port.in_ep,
		&gsi->d_port.in_request,
		GSI_EP_OP_CONFIG);
		@@ -2526,12 +2557,7 @@ static int gsi_set_alt(struct usb_function *f, unsigned int intf,

		if (gsi->d_port.out_ep &&
		gsi->prot_id <= USB_PROT_RMNET_V2X_IPA) {
		if ((gsi->prot_id == USB_PROT_RMNET_IPA \|\|
		gsi->prot_id == USB_PROT_ECM_IPA) &&
		gsi_rmnet_v2x->function.fs_descriptors)
		gsi->d_port.out_ep->ep_intr_num = 0;
		else
		gsi->d_port.out_ep->ep_intr_num = 1;
		gsi->d_port.out_ep->ep_intr_num = out_intr_num;
		usb_gsi_ep_op(gsi->d_port.out_ep,
		&gsi->d_port.out_request,
		GSI_EP_OP_CONFIG);