95 lines
2.7 KiB
C
95 lines
2.7 KiB
C
#ifndef _LINUX_MEI_CL_BUS_H
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#define _LINUX_MEI_CL_BUS_H
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#include <linux/device.h>
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#include <linux/uuid.h>
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#include <linux/mod_devicetable.h>
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struct mei_cl_device;
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struct mei_device;
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typedef void (*mei_cl_event_cb_t)(struct mei_cl_device *device,
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u32 events, void *context);
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/**
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* struct mei_cl_device - MEI device handle
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* An mei_cl_device pointer is returned from mei_add_device()
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* and links MEI bus clients to their actual ME host client pointer.
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* Drivers for MEI devices will get an mei_cl_device pointer
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* when being probed and shall use it for doing ME bus I/O.
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*
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* @bus_list: device on the bus list
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* @bus: parent mei device
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* @dev: linux driver model device pointer
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* @me_cl: me client
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* @cl: mei client
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* @name: device name
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* @event_work: async work to execute event callback
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* @event_cb: Drivers register this callback to get asynchronous ME
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* events (e.g. Rx buffer pending) notifications.
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* @event_context: event callback run context
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* @events_mask: Events bit mask requested by driver.
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* @events: Events bitmask sent to the driver.
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*
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* @do_match: wheather device can be matched with a driver
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* @is_added: device is already scanned
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* @priv_data: client private data
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*/
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struct mei_cl_device {
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struct list_head bus_list;
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struct mei_device *bus;
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struct device dev;
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struct mei_me_client *me_cl;
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struct mei_cl *cl;
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char name[MEI_CL_NAME_SIZE];
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struct work_struct event_work;
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mei_cl_event_cb_t event_cb;
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void *event_context;
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unsigned long events_mask;
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unsigned long events;
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unsigned int do_match:1;
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unsigned int is_added:1;
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void *priv_data;
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};
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struct mei_cl_driver {
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struct device_driver driver;
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const char *name;
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const struct mei_cl_device_id *id_table;
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int (*probe)(struct mei_cl_device *dev,
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const struct mei_cl_device_id *id);
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int (*remove)(struct mei_cl_device *dev);
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};
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int __mei_cl_driver_register(struct mei_cl_driver *driver,
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struct module *owner);
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#define mei_cl_driver_register(driver) \
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__mei_cl_driver_register(driver, THIS_MODULE)
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void mei_cl_driver_unregister(struct mei_cl_driver *driver);
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ssize_t mei_cl_send(struct mei_cl_device *device, u8 *buf, size_t length);
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ssize_t mei_cl_recv(struct mei_cl_device *device, u8 *buf, size_t length);
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int mei_cl_register_event_cb(struct mei_cl_device *device,
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unsigned long event_mask,
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mei_cl_event_cb_t read_cb, void *context);
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#define MEI_CL_EVENT_RX 0
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#define MEI_CL_EVENT_TX 1
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#define MEI_CL_EVENT_NOTIF 2
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void *mei_cl_get_drvdata(const struct mei_cl_device *device);
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void mei_cl_set_drvdata(struct mei_cl_device *device, void *data);
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int mei_cl_enable_device(struct mei_cl_device *device);
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int mei_cl_disable_device(struct mei_cl_device *device);
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#endif /* _LINUX_MEI_CL_BUS_H */
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