93 lines
2.6 KiB
C
93 lines
2.6 KiB
C
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/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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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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#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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