Edit File: mei_cl_bus.h
#ifndef _LINUX_MEI_CL_BUS_H #define _LINUX_MEI_CL_BUS_H #include <linux/device.h> #include <linux/uuid.h> #include <linux/mod_devicetable.h> struct mei_cl_device; struct mei_device; typedef void (*mei_cldev_event_cb_t)(struct mei_cl_device *cldev, u32 events, void *context); /** * struct mei_cl_device - MEI device handle * An mei_cl_device pointer is returned from mei_add_device() * and links MEI bus clients to their actual ME host client pointer. * Drivers for MEI devices will get an mei_cl_device pointer * when being probed and shall use it for doing ME bus I/O. * * @bus_list: device on the bus list * @bus: parent mei device * @dev: linux driver model device pointer * @me_cl: me client * @cl: mei client * @name: device name * @event_work: async work to execute event callback * @event_cb: Drivers register this callback to get asynchronous ME * events (e.g. Rx buffer pending) notifications. * @event_context: event callback run context * @events_mask: Events bit mask requested by driver. * @events: Events bitmask sent to the driver. * * @do_match: wheather device can be matched with a driver * @is_added: device is already scanned * @priv_data: client private data */ struct mei_cl_device { struct list_head bus_list; struct mei_device *bus; struct device dev; struct mei_me_client *me_cl; struct mei_cl *cl; char name[MEI_CL_NAME_SIZE]; struct work_struct event_work; mei_cldev_event_cb_t event_cb; void *event_context; unsigned long events_mask; unsigned long events; unsigned int do_match:1; unsigned int is_added:1; void *priv_data; }; struct mei_cl_driver { struct device_driver driver; const char *name; const struct mei_cl_device_id *id_table; int (*probe)(struct mei_cl_device *cldev, const struct mei_cl_device_id *id); int (*remove)(struct mei_cl_device *cldev); }; int __mei_cldev_driver_register(struct mei_cl_driver *cldrv, struct module *owner); #define mei_cldev_driver_register(cldrv) \ __mei_cldev_driver_register(cldrv, THIS_MODULE) void mei_cldev_driver_unregister(struct mei_cl_driver *cldrv); /** * module_mei_cl_driver - Helper macro for registering mei cl driver * * @__mei_cldrv mei_cl_driver structure * * Helper macro for mei cl drivers which do not do anything special in module * init/exit, for eliminating a boilerplate code. */ #define module_mei_cl_driver(__mei_cldrv) \ module_driver(__mei_cldrv, \ mei_cldev_driver_register,\ mei_cldev_driver_unregister) ssize_t mei_cldev_send(struct mei_cl_device *cldev, u8 *buf, size_t length); ssize_t mei_cldev_recv(struct mei_cl_device *cldev, u8 *buf, size_t length); int mei_cldev_register_event_cb(struct mei_cl_device *cldev, unsigned long event_mask, mei_cldev_event_cb_t read_cb, void *context); #define MEI_CL_EVENT_RX 0 #define MEI_CL_EVENT_TX 1 #define MEI_CL_EVENT_NOTIF 2 const uuid_le *mei_cldev_uuid(const struct mei_cl_device *cldev); u8 mei_cldev_ver(const struct mei_cl_device *cldev); void *mei_cldev_get_drvdata(const struct mei_cl_device *cldev); void mei_cldev_set_drvdata(struct mei_cl_device *cldev, void *data); int mei_cldev_enable(struct mei_cl_device *cldev); int mei_cldev_disable(struct mei_cl_device *cldev); bool mei_cldev_enabled(struct mei_cl_device *cldev); #endif /* _LINUX_MEI_CL_BUS_H */