From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1423177AbcFHJE3 (ORCPT ); Wed, 8 Jun 2016 05:04:29 -0400 Received: from bear.ext.ti.com ([198.47.19.11]:44092 "EHLO bear.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1423051AbcFHJEX (ORCPT ); Wed, 8 Jun 2016 05:04:23 -0400 From: Roger Quadros To: CC: , , , , , , , , , , , , , , , , , Roger Quadros Subject: [PATCH v9 03/14] usb: hcd.h: Add OTG to HCD interface Date: Wed, 8 Jun 2016 12:03:35 +0300 Message-ID: <1465376626-30122-4-git-send-email-rogerq@ti.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1465376626-30122-1-git-send-email-rogerq@ti.com> References: <1465376626-30122-1-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 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 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..7914bed 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 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; -- 2.7.4