Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933459AbcDEOF6 (ORCPT ); Tue, 5 Apr 2016 10:05:58 -0400 Received: from comal.ext.ti.com ([198.47.26.152]:44764 "EHLO comal.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751976AbcDEOF4 (ORCPT ); Tue, 5 Apr 2016 10:05:56 -0400 From: Roger Quadros To: , , , CC: , , , , , , , , , , Roger Quadros Subject: [PATCH v6 02/12] usb: hcd.h: Add OTG to HCD interface Date: Tue, 5 Apr 2016 17:05:07 +0300 Message-ID: <1459865117-7032-3-git-send-email-rogerq@ti.com> X-Mailer: git-send-email 2.5.0 In-Reply-To: <1459865117-7032-1-git-send-email-rogerq@ti.com> References: <1459865117-7032-1-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 Content-Length: 1651 Lines: 50 The OTG core will use struct otg_hcd_ops to interface with the HCD controller. 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 --- 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 b98f831..861ccaa 100644 --- a/include/linux/usb/hcd.h +++ b/include/linux/usb/hcd.h @@ -399,6 +399,30 @@ 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 of 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; -- 2.5.0