Something went wrong. Try again.
(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Something went wrong. Try again.
C
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990/* SPDX-License-Identifier: GPL-2.0-only *//* * Mediated device definition * * Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved. * Author: Neo Jia <cjia@nvidia.com> * Kirti Wankhede <kwankhede@nvidia.com> */
#ifndef MDEV_H#define MDEV_H
#include <linux/device.h>#include <linux/uuid.h>
struct mdev_type;
struct mdev_device { struct device dev; guid_t uuid; struct list_head next; struct mdev_type *type; bool active;};
struct mdev_type { /* set by the driver before calling mdev_register parent: */ const char *sysfs_name; const char *pretty_name;
/* set by the core, can be used drivers */ struct mdev_parent *parent;
/* internal only */ struct kobject kobj; struct kobject *devices_kobj;};
/* embedded into the struct device that the mdev devices hang off */struct mdev_parent { struct device *dev; struct mdev_driver *mdev_driver; struct kset *mdev_types_kset; /* Synchronize device creation/removal with parent unregistration */ struct rw_semaphore unreg_sem; struct mdev_type **types; unsigned int nr_types; atomic_t available_instances;};
static inline struct mdev_device *to_mdev_device(struct device *dev){ return container_of(dev, struct mdev_device, dev);}
/** * struct mdev_driver - Mediated device driver * @device_api: string to return for the device_api sysfs * @max_instances: maximum number of instances supported (optional) * @probe: called when new device created * @remove: called when device removed * @get_available: Return the max number of instances that can be created * @show_description: Print a description of the mtype * @driver: device driver structure **/struct mdev_driver { const char *device_api; unsigned int max_instances; int (*probe)(struct mdev_device *dev); void (*remove)(struct mdev_device *dev); unsigned int (*get_available)(struct mdev_type *mtype); ssize_t (*show_description)(struct mdev_type *mtype, char *buf); struct device_driver driver;};
int mdev_register_parent(struct mdev_parent *parent, struct device *dev, struct mdev_driver *mdev_driver, struct mdev_type **types, unsigned int nr_types);void mdev_unregister_parent(struct mdev_parent *parent);
int mdev_register_driver(struct mdev_driver *drv);void mdev_unregister_driver(struct mdev_driver *drv);
static inline struct device *mdev_dev(struct mdev_device *mdev){ return &mdev->dev;}
#endif /* MDEV_H */