Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / media / platform / vsp1 / vsp1_entity.h

diff --git a/kernel/drivers/media/platform/vsp1/vsp1_entity.h b/kernel/drivers/media/platform/vsp1/vsp1_entity.h
new file mode 100644 (file)
index 0000000..62c768d
--- /dev/null
+++ b/kernel/drivers/media/platform/vsp1/vsp1_entity.h
@@ -0,0 +1,102 @@
+/*
+ * vsp1_entity.h  --  R-Car VSP1 Base Entity
+ *
+ * Copyright (C) 2013-2014 Renesas Electronics Corporation
+ *
+ * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+#ifndef __VSP1_ENTITY_H__
+#define __VSP1_ENTITY_H__
+
+#include <linux/list.h>
+#include <linux/mutex.h>
+
+#include <media/v4l2-subdev.h>
+
+struct vsp1_device;
+struct vsp1_video;
+
+enum vsp1_entity_type {
+       VSP1_ENTITY_BRU,
+       VSP1_ENTITY_HSI,
+       VSP1_ENTITY_HST,
+       VSP1_ENTITY_LIF,
+       VSP1_ENTITY_LUT,
+       VSP1_ENTITY_RPF,
+       VSP1_ENTITY_SRU,
+       VSP1_ENTITY_UDS,
+       VSP1_ENTITY_WPF,
+};
+
+/*
+ * struct vsp1_route - Entity routing configuration
+ * @type: Entity type this routing entry is associated with
+ * @index: Entity index this routing entry is associated with
+ * @reg: Output routing configuration register
+ * @inputs: Target node value for each input
+ *
+ * Each $vsp1_route entry describes routing configuration for the entity
+ * specified by the entry's @type and @index. @reg indicates the register that
+ * holds output routing configuration for the entity, and the @inputs array
+ * store the target node value for each input of the entity.
+ */
+struct vsp1_route {
+       enum vsp1_entity_type type;
+       unsigned int index;
+       unsigned int reg;
+       unsigned int inputs[4];
+};
+
+struct vsp1_entity {
+       struct vsp1_device *vsp1;
+
+       enum vsp1_entity_type type;
+       unsigned int index;
+       const struct vsp1_route *route;
+
+       struct list_head list_dev;
+       struct list_head list_pipe;
+
+       struct media_pad *pads;
+       unsigned int source_pad;
+
+       struct media_entity *sink;
+       unsigned int sink_pad;
+
+       struct v4l2_subdev subdev;
+       struct v4l2_mbus_framefmt *formats;
+
+       struct vsp1_video *video;
+
+       struct mutex lock;              /* Protects the streaming field */
+       bool streaming;
+};
+
+static inline struct vsp1_entity *to_vsp1_entity(struct v4l2_subdev *subdev)
+{
+       return container_of(subdev, struct vsp1_entity, subdev);
+}
+
+int vsp1_entity_init(struct vsp1_device *vsp1, struct vsp1_entity *entity,
+                    unsigned int num_pads);
+void vsp1_entity_destroy(struct vsp1_entity *entity);
+
+extern const struct v4l2_subdev_internal_ops vsp1_subdev_internal_ops;
+extern const struct media_entity_operations vsp1_media_ops;
+
+struct v4l2_mbus_framefmt *
+vsp1_entity_get_pad_format(struct vsp1_entity *entity,
+                          struct v4l2_subdev_pad_config *cfg,
+                          unsigned int pad, u32 which);
+void vsp1_entity_init_formats(struct v4l2_subdev *subdev,
+                             struct v4l2_subdev_pad_config *cfg);
+
+bool vsp1_entity_is_streaming(struct vsp1_entity *entity);
+int vsp1_entity_set_streaming(struct vsp1_entity *entity, bool streaming);
+
+#endif /* __VSP1_ENTITY_H__ */