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3391ba0e27
Extract the code from current stub driver backend and a common
interface for both stub driver and vudc. This allows to share most
of the usbipd code for both of them.
Based on code created in cooperation with Open Operating Systems
Student Society at University of Warsaw (O2S3@UW) consisting of:
Igor Kotrasinski <ikotrasinsk@gmail.com>
Karol Kosik <karo9@interia.eu>
Ewelina Kosmider <3w3lfin@gmail.com>
Dawid Lazarczyk <lazarczyk.dawid@gmail.com>
Piotr Szulc <ps347277@students.mimuw.edu.pl>
Tutor and project owner:
Krzysztof Opasiak <k.opasiak@samsung.com>
Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
105 lines
3.2 KiB
C
105 lines
3.2 KiB
C
/*
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* Copyright (C) 2015-2016 Samsung Electronics
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* Igor Kotrasinski <i.kotrasinsk@samsung.com>
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* Krzysztof Opasiak <k.opasiak@samsung.com>
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*
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* Refactored from usbip_host_driver.c, which is:
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* Copyright (C) 2011 matt mooney <mfm@muteddisk.com>
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* 2005-2007 Takahiro Hirofuchi
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __USBIP_HOST_COMMON_H
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#define __USBIP_HOST_COMMON_H
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#include <stdint.h>
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#include <libudev.h>
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#include <errno.h>
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#include "list.h"
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#include "usbip_common.h"
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#include "sysfs_utils.h"
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struct usbip_host_driver;
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struct usbip_host_driver_ops {
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int (*open)(struct usbip_host_driver *hdriver);
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void (*close)(struct usbip_host_driver *hdriver);
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int (*refresh_device_list)(struct usbip_host_driver *hdriver);
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struct usbip_exported_device * (*get_device)(
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struct usbip_host_driver *hdriver, int num);
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int (*read_device)(struct udev_device *sdev,
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struct usbip_usb_device *dev);
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int (*read_interface)(struct usbip_usb_device *udev, int i,
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struct usbip_usb_interface *uinf);
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int (*is_my_device)(struct udev_device *udev);
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};
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struct usbip_host_driver {
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int ndevs;
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/* list of exported device */
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struct list_head edev_list;
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const char *udev_subsystem;
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struct usbip_host_driver_ops ops;
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};
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struct usbip_exported_device {
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struct udev_device *sudev;
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int32_t status;
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struct usbip_usb_device udev;
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struct list_head node;
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struct usbip_usb_interface uinf[];
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};
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/* External API to access the driver */
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static inline int usbip_driver_open(struct usbip_host_driver *hdriver)
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{
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if (!hdriver->ops.open)
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return -EOPNOTSUPP;
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return hdriver->ops.open(hdriver);
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}
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static inline void usbip_driver_close(struct usbip_host_driver *hdriver)
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{
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if (!hdriver->ops.close)
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return;
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hdriver->ops.close(hdriver);
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}
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static inline int usbip_refresh_device_list(struct usbip_host_driver *hdriver)
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{
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if (!hdriver->ops.refresh_device_list)
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return -EOPNOTSUPP;
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return hdriver->ops.refresh_device_list(hdriver);
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}
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static inline struct usbip_exported_device *
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usbip_get_device(struct usbip_host_driver *hdriver, int num)
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{
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if (!hdriver->ops.get_device)
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return NULL;
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return hdriver->ops.get_device(hdriver, num);
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}
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/* Helper functions for implementing driver backend */
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int usbip_generic_driver_open(struct usbip_host_driver *hdriver);
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void usbip_generic_driver_close(struct usbip_host_driver *hdriver);
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int usbip_generic_refresh_device_list(struct usbip_host_driver *hdriver);
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int usbip_export_device(struct usbip_exported_device *edev, int sockfd);
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struct usbip_exported_device *usbip_generic_get_device(
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struct usbip_host_driver *hdriver, int num);
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#endif /* __USBIP_HOST_COMMON_H */
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