LXR linux/include/linux/mei_cl

   1#ifndef _LINUX_MEI_CL_BUS_H
   2#define _LINUX_MEI_CL_BUS_H
   3
   4#include <linux/device.h>
   5#include <linux/uuid.h>
   6#include <linux/mod_devicetable.h>
   7
   8struct mei_cl_device;
   9
  10typedef void (*mei_cl_event_cb_t)(struct mei_cl_device *device,
  11                               u32 events, void *context);
  12
  13/**
  14 * struct mei_cl_device - MEI device handle
  15 * An mei_cl_device pointer is returned from mei_add_device()
  16 * and links MEI bus clients to their actual ME host client pointer.
  17 * Drivers for MEI devices will get an mei_cl_device pointer
  18 * when being probed and shall use it for doing ME bus I/O.
  19 *
  20 * @dev: linux driver model device pointer
  21 * @me_cl: me client
  22 * @cl: mei client
  23 * @name: device name
  24 * @event_work: async work to execute event callback
  25 * @event_cb: Drivers register this callback to get asynchronous ME
  26 *      events (e.g. Rx buffer pending) notifications.
  27 * @event_context: event callback run context
  28 * @events: Events bitmask sent to the driver.
  29 * @priv_data: client private data
  30 */
  31struct mei_cl_device {
  32        struct device dev;
  33
  34        struct mei_me_client *me_cl;
  35        struct mei_cl *cl;
  36        char name[MEI_CL_NAME_SIZE];
  37
  38        struct work_struct event_work;
  39        mei_cl_event_cb_t event_cb;
  40        void *event_context;
  41        unsigned long events;
  42
  43        void *priv_data;
  44};
  45
  46struct mei_cl_driver {
  47        struct device_driver driver;
  48        const char *name;
  49
  50        const struct mei_cl_device_id *id_table;
  51
  52        int (*probe)(struct mei_cl_device *dev,
  53                     const struct mei_cl_device_id *id);
  54        int (*remove)(struct mei_cl_device *dev);
  55};
  56
  57int __mei_cl_driver_register(struct mei_cl_driver *driver,
  58                                struct module *owner);
  59#define mei_cl_driver_register(driver)             \
  60        __mei_cl_driver_register(driver, THIS_MODULE)
  61
  62void mei_cl_driver_unregister(struct mei_cl_driver *driver);
  63
  64ssize_t mei_cl_send(struct mei_cl_device *device, u8 *buf, size_t length);
  65ssize_t  mei_cl_recv(struct mei_cl_device *device, u8 *buf, size_t length);
  66
  67int mei_cl_register_event_cb(struct mei_cl_device *device,
  68                          mei_cl_event_cb_t read_cb, void *context);
  69
  70#define MEI_CL_EVENT_RX 0
  71#define MEI_CL_EVENT_TX 1
  72
  73void *mei_cl_get_drvdata(const struct mei_cl_device *device);
  74void mei_cl_set_drvdata(struct mei_cl_device *device, void *data);
  75
  76int mei_cl_enable_device(struct mei_cl_device *device);
  77int mei_cl_disable_device(struct mei_cl_device *device);
  78
  79#endif /* _LINUX_MEI_CL_BUS_H */
  80