drivers/video/adf/adf_fops.h

   1 /*
   2  * Copyright (C) 2013 Google, Inc.
   3  *
   4  * This software is licensed under the terms of the GNU General Public
   5  * License version 2, as published by the Free Software Foundation, and
   6  * may be copied, distributed, and modified under those terms.
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  * GNU General Public License for more details.
  12  *
  13  */
  14
  15 #ifndef __VIDEO_ADF_ADF_FOPS_H
  16 #define __VIDEO_ADF_ADF_FOPS_H
  17
  18 #include <linux/bitmap.h>
  19 #include <linux/fs.h>
  20
  21 extern const struct file_operations adf_fops;
  22
  23 struct adf_file {
  24         struct list_head head;
  25         struct adf_obj *obj;
  26
  27         DECLARE_BITMAP(event_subscriptions, ADF_EVENT_TYPE_MAX);
  28         u8 event_buf[4096];
  29         int event_head;
  30         int event_tail;
  31         wait_queue_head_t event_wait;
  32 };
  33
  34 void adf_file_queue_event(struct adf_file *file, struct adf_event *event);
  35 long adf_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
  36
  37 #endif /* __VIDEO_ADF_ADF_FOPS_H */