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92 lines
2.6 KiB
92 lines
2.6 KiB
/* 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 <[email protected]> |
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* Krzysztof Opasiak <[email protected]> |
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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 <[email protected]> |
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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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