1 files changed, 48 insertions, 0 deletions

diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h
index 2ecd7377153b..b137a5e1151a 100644
--- a/include/media/v4l2-subdev.h
+++ b/include/media/v4l2-subdev.h
@@ -21,6 +21,7 @@
 #ifndef _V4L2_SUBDEV_H
 #define _V4L2_SUBDEV_H
 
+#include <linux/types.h>
 #include <linux/v4l2-subdev.h>
 #include <media/media-entity.h>
 #include <media/v4l2-common.h>
@@ -45,6 +46,7 @@ struct v4l2_fh;
 struct v4l2_subdev;
 struct v4l2_subdev_fh;
 struct tuner_setup;
+struct v4l2_mbus_frame_desc;
 
 /* decode_vbi_line */
 struct v4l2_decode_vbi_line {
@@ -226,6 +228,36 @@ struct v4l2_subdev_audio_ops {
         int (*s_stream)(struct v4l2_subdev *sd, int enable);
 };
 
+/* Indicates the @length field specifies maximum data length. */
+#define V4L2_MBUS_FRAME_DESC_FL_LEN_MAX         (1U << 0)
+/* Indicates user defined data format, i.e. non standard frame format. */
+#define V4L2_MBUS_FRAME_DESC_FL_BLOB            (1U << 1)
+
+/**
+ * struct v4l2_mbus_frame_desc_entry - media bus frame description structure
+ * @flags: V4L2_MBUS_FRAME_DESC_FL_* flags
+ * @pixelcode: media bus pixel code, valid if FRAME_DESC_FL_BLOB is not set
+ * @length: number of octets per frame, valid for compressed or unspecified
+ *          formats
+ */
+struct v4l2_mbus_frame_desc_entry {
+        u16 flags;
+        u32 pixelcode;
+        u32 length;
+};
+
+#define V4L2_FRAME_DESC_ENTRY_MAX       4
+
+/**
+ * struct v4l2_mbus_frame_desc - media bus data frame description
+ * @entry: frame descriptors array
+ * @num_entries: number of entries in @entry array
+ */
+struct v4l2_mbus_frame_desc {
+        struct v4l2_mbus_frame_desc_entry entry[V4L2_FRAME_DESC_ENTRY_MAX];
+        unsigned short num_entries;
+};
+
 /*
    s_std_output: set v4l2_std_id for video OUTPUT devices. This is ignored by
         video input devices.
@@ -274,6 +306,10 @@ struct v4l2_subdev_audio_ops {
    s_mbus_config: set a certain mediabus configuration. This operation is added
         for compatibility with soc-camera drivers and should not be used by new
         software.
+
+   s_rx_buffer: set a host allocated memory buffer for the subdev. The subdev
+        can adjust @size to a lower value and must not write more data to the
+        buffer starting at @data than the original value of @size.
  */
 struct v4l2_subdev_video_ops {
         int (*s_routing)(struct v4l2_subdev *sd, u32 input, u32 output, u32 config);
@@ -327,6 +363,8 @@ struct v4l2_subdev_video_ops {
                              struct v4l2_mbus_config *cfg);
         int (*s_mbus_config)(struct v4l2_subdev *sd,
                              const struct v4l2_mbus_config *cfg);
+        int (*s_rx_buffer)(struct v4l2_subdev *sd, void *buf,
+                           unsigned int *size);
 };
 
 /*
@@ -455,6 +493,12 @@ struct v4l2_subdev_ir_ops {
                                 struct v4l2_subdev_ir_parameters *params);
 };
 
+/**
+ * struct v4l2_subdev_pad_ops - v4l2-subdev pad level operations
+ * @get_frame_desc: get the current low level media bus frame parameters.
+ * @get_frame_desc: set the low level media bus frame parameters, @fd array
+ *                  may be adjusted by the subdev driver to device capabilities.
+ */
 struct v4l2_subdev_pad_ops {
         int (*enum_mbus_code)(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
                               struct v4l2_subdev_mbus_code_enum *code);
@@ -483,6 +527,10 @@ struct v4l2_subdev_pad_ops {
                              struct v4l2_subdev_format *source_fmt,
                              struct v4l2_subdev_format *sink_fmt);
 #endif /* CONFIG_MEDIA_CONTROLLER */
+        int (*get_frame_desc)(struct v4l2_subdev *sd, unsigned int pad,
+                              struct v4l2_mbus_frame_desc *fd);
+        int (*set_frame_desc)(struct v4l2_subdev *sd, unsigned int pad,
+                              struct v4l2_mbus_frame_desc *fd);
 };
 
 struct v4l2_subdev_ops {