Merge "usb: gadget: f_gsi: Send 0 byte packet when both ctrl and data paths setup" (fd7cb2f6) · Commits · e / devices / android_kernel_xiaomi_nabu

drivers/usb/gadget/function/f_gsi.c

+15 −1

Original line number	Diff line number	Diff line
		@@ -76,6 +76,7 @@ static void ipa_disconnect_handler(struct gsi_data_port *d_port);
		static int gsi_ctrl_send_notification(struct f_gsi *gsi);
		static struct gsi_ctrl_pkt *gsi_ctrl_pkt_alloc(unsigned int len, gfp_t flags);
		static void gsi_ctrl_pkt_free(struct gsi_ctrl_pkt *pkt);
		static int gsi_ctrl_send_cpkt_tomodem(struct f_gsi gsi, void buf, size_t len);

		static inline bool is_ext_prot_ether(int prot_id)
		{
		@@ -743,6 +744,12 @@ static int ipa_connect_channels(struct gsi_data_port *d_port)
		ipa_out_channel_out_params.db_reg_phs_addr_msb;
		}

		/* Send 0 byte packet to QTI only if DTR linetstate is HIGH already */
		if (gsi->rmnet_dtr_status &&
		(gsi->prot_id == USB_PROT_RMNET_IPA \|\|
		gsi->prot_id == USB_PROT_RMNET_V2X_IPA))
		gsi_ctrl_send_cpkt_tomodem(gsi, NULL, 0);

		return ret;

		end_xfer_ep_out:
		@@ -2226,7 +2233,14 @@ gsi_setup(struct usb_function f, const struct usb_ctrlrequest ctrl)
		queue_work(gsi->c_port.uevent_wq,
		&gsi->c_port.uevent_work);

		/* Send 0 byte packet to QTI only if IPA connect is done */
		if (gsi->rmnet_dtr_status) {
		if (gsi->prot_id == USB_PROT_RMNET_ETHER)
		gsi_ctrl_send_cpkt_tomodem(gsi, NULL, 0);
		else if (gsi->d_port.in_channel_handle != -EINVAL)
		gsi_ctrl_send_cpkt_tomodem(gsi, NULL, 0);
		}

		value = 0;
		break;
		case ((USB_DIR_OUT \| USB_TYPE_CLASS \| USB_RECIP_INTERFACE) << 8)