drivers/video/adf/adf.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_H
  16 #define __VIDEO_ADF_ADF_H
  17
  18 #include <linux/idr.h>
  19 #include <linux/list.h>
  20 #include <video/adf.h>
  21 #include "sync.h"
  22
  23 struct adf_event_refcount {
  24         struct rb_node node;
  25         enum adf_event_type type;
  26         int refcount;
  27 };
  28
  29 void adf_buffer_cleanup(struct adf_buffer *buf);
  30 void adf_buffer_mapping_cleanup(struct adf_buffer_mapping *mapping,
  31                 struct adf_buffer *buf);
  32 void adf_post_cleanup(struct adf_device *dev, struct adf_pending_post *post);
  33
  34 struct adf_attachment_list *adf_attachment_find(struct list_head *list,
  35                 struct adf_overlay_engine *eng, struct adf_interface *intf);
  36 int adf_attachment_validate(struct adf_device *dev,
  37                 struct adf_overlay_engine *eng, struct adf_interface *intf);
  38 void adf_attachment_free(struct adf_attachment_list *attachment);
  39
  40 struct adf_event_refcount *adf_obj_find_event_refcount(struct adf_obj *obj,
  41                 enum adf_event_type type);
  42
  43 static inline int adf_obj_check_supports_event(struct adf_obj *obj,
  44                 enum adf_event_type type)
  45 {
  46         if (!obj->ops || !obj->ops->supports_event)
  47                 return -EOPNOTSUPP;
  48         if (!obj->ops->supports_event(obj, type))
  49                 return -EINVAL;
  50         return 0;
  51 }
  52
  53 static inline int adf_device_attach_op(struct adf_device *dev,
  54                 struct adf_overlay_engine *eng, struct adf_interface *intf)
  55 {
  56         if (!dev->ops->attach)
  57                 return 0;
  58
  59         return dev->ops->attach(dev, eng, intf);
  60 }
  61
  62 static inline int adf_device_detach_op(struct adf_device *dev,
  63                 struct adf_overlay_engine *eng, struct adf_interface *intf)
  64 {
  65         if (!dev->ops->detach)
  66                 return 0;
  67
  68         return dev->ops->detach(dev, eng, intf);
  69 }
  70
  71 #endif /* __VIDEO_ADF_ADF_H */