From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753496AbcFJNM0 (ORCPT ); Fri, 10 Jun 2016 09:12:26 -0400 Received: from comal.ext.ti.com ([198.47.26.152]:38034 "EHLO comal.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753160AbcFJNIR (ORCPT ); Fri, 10 Jun 2016 09:08:17 -0400 From: Roger Quadros To: CC: , , , , , , , , , , , , , , , , , , Roger Quadros Subject: [PATCH v10 03/14] usb: hcd.h: Add OTG to HCD interface Date: Fri, 10 Jun 2016 16:07:12 +0300 Message-ID: <1465564043-27163-4-git-send-email-rogerq@ti.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1465564043-27163-1-git-send-email-rogerq@ti.com> References: <1465564043-27163-1-git-send-email-rogerq@ti.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The OTG core will use struct otg_hcd_ops to interface with the HCD (Host Controller Driver). The main purpose of this interface is to avoid directly calling HCD APIs from the OTG core as they wouldn't be defined in the built-in symbol table if CONFIG_USB is m. Signed-off-by: Roger Quadros Acked-by: Peter Chen --- include/linux/usb/hcd.h | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/include/linux/usb/hcd.h b/include/linux/usb/hcd.h index 66fc137..7729c1f 100644 --- a/include/linux/usb/hcd.h +++ b/include/linux/usb/hcd.h @@ -400,6 +400,30 @@ struct hc_driver { }; +/** + * struct otg_hcd_ops - Interface between OTG core and HCD + * + * Provided by the HCD core to allow the OTG core to interface with the HCD + * + * @add: function to add the HCD + * @remove: function to remove the HCD + * @usb_bus_start_enum: function to immediately start bus enumeration + * @usb_control_msg: function to build and send a control URB + * @usb_hub_find_child: function to get pointer to the child device + */ +struct otg_hcd_ops { + int (*add)(struct usb_hcd *hcd, + unsigned int irqnum, unsigned long irqflags); + void (*remove)(struct usb_hcd *hcd); + int (*usb_bus_start_enum)(struct usb_bus *bus, unsigned int port_num); + int (*usb_control_msg)(struct usb_device *dev, unsigned int pipe, + __u8 request, __u8 requesttype, __u16 value, + __u16 index, void *data, __u16 size, + int timeout); + struct usb_device * (*usb_hub_find_child)(struct usb_device *hdev, + int port1); +}; + static inline int hcd_giveback_urb_in_bh(struct usb_hcd *hcd) { return hcd->driver->flags & HCD_BH; -- 2.7.4