[v4l-utils RFC v3 06/11] mediactl: Add subdev_fmt property to the media_entity

[Jacek Anaszewski <j.anaszewski@xxxxxxxxxxx>]

Add subdev_fmt field to the structure media_entity.
Added is also API for setting the media_entity
format and comparing two subdev formats.

Signed-off-by: Jacek Anaszewski <j.anaszewski@xxxxxxxxxxx>
Acked-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
---
 utils/media-ctl/libmediactl.c   |    6 ++++++
 utils/media-ctl/libv4l2subdev.c |   34 ++++++++++++++++++++++++++++++++++
 utils/media-ctl/mediactl-priv.h |    3 +++
 utils/media-ctl/mediactl.h      |   12 ++++++++++++
 utils/media-ctl/v4l2subdev.h    |   12 ++++++++++++
 5 files changed, 67 insertions(+)

diff --git a/utils/media-ctl/libmediactl.c b/utils/media-ctl/libmediactl.c
index 10f0491..27e7329 100644
--- a/utils/media-ctl/libmediactl.c
+++ b/utils/media-ctl/libmediactl.c
@@ -1260,3 +1260,9 @@ int media_entity_get_fd(struct media_entity *entity)
 {
 	return entity->fd;
 }
+
+void media_entity_set_subdev_fmt(struct media_entity *entity,
+				struct v4l2_subdev_format *fmt)
+{
+	entity->subdev_fmt = *fmt;
+}
diff --git a/utils/media-ctl/libv4l2subdev.c b/utils/media-ctl/libv4l2subdev.c
index 99ac6b2..449565c 100644
--- a/utils/media-ctl/libv4l2subdev.c
+++ b/utils/media-ctl/libv4l2subdev.c
@@ -786,3 +786,37 @@ int v4l2_subdev_validate_v4l2_ctrl(struct media_device *media,
 							entity->info.name);
 	return 0;
 }
+
+int v4l2_subdev_format_compare(struct v4l2_mbus_framefmt *fmt1,
+				struct v4l2_mbus_framefmt *fmt2)
+{
+	if (fmt1 == NULL || fmt2 == NULL)
+		return 0;
+
+	if (fmt1->width != fmt2->width) {
+		printf("width mismatch\n");
+		return 0;
+	}
+
+	if (fmt1->height != fmt2->height) {
+		printf("height mismatch\n");
+		return 0;
+	}
+
+	if (fmt1->code != fmt2->code) {
+		printf("mbus code mismatch\n");
+		return 0;
+	}
+
+	if (fmt1->field != fmt2->field) {
+		printf("field mismatch\n");
+		return 0;
+	}
+
+	if (fmt1->colorspace != fmt2->colorspace) {
+		printf("colorspace mismatch\n");
+		return 0;
+	}
+
+	return 1;
+}
diff --git a/utils/media-ctl/mediactl-priv.h b/utils/media-ctl/mediactl-priv.h
index b9e9b20..b2c466b 100644
--- a/utils/media-ctl/mediactl-priv.h
+++ b/utils/media-ctl/mediactl-priv.h
@@ -23,6 +23,7 @@
 #define __MEDIA_PRIV_H__
 
 #include <linux/media.h>
+#include <linux/v4l2-subdev.h>
 
 #include "mediactl.h"
 
@@ -34,6 +35,8 @@ struct media_entity {
 	unsigned int max_links;
 	unsigned int num_links;
 
+	struct v4l2_subdev_format subdev_fmt;
+
 	char devname[32];
 	int fd;
 };
diff --git a/utils/media-ctl/mediactl.h b/utils/media-ctl/mediactl.h
index 0dc7f95..d28b0a8 100644
--- a/utils/media-ctl/mediactl.h
+++ b/utils/media-ctl/mediactl.h
@@ -42,6 +42,7 @@ struct media_pad {
 
 struct media_device;
 struct media_entity;
+struct v4l2_subdev_format;
 
 /**
  * @brief Create a new media device.
@@ -611,4 +612,15 @@ int media_entity_get_sink_pad_index(struct media_entity *entity);
  */
 int media_entity_get_fd(struct media_entity *entity);
 
+/**
+ * @brief Set sub-device format
+ * @param entity - media entity
+ * @param fmt - pointer to the sub-device format structure
+ *
+ * This function sets the format of the sub-device related
+ * to this entity.
+ */
+void media_entity_set_subdev_fmt(struct media_entity *entity,
+				struct v4l2_subdev_format *fmt);
+
 #endif
diff --git a/utils/media-ctl/v4l2subdev.h b/utils/media-ctl/v4l2subdev.h
index 3bc0412..2c9d507 100644
--- a/utils/media-ctl/v4l2subdev.h
+++ b/utils/media-ctl/v4l2subdev.h
@@ -270,4 +270,16 @@ int v4l2_subdev_validate_v4l2_ctrl(struct media_device *media,
 	struct media_entity *entity,
 	__u32 ctrl_id);
 
+/**
+ * @brief Compare mbus formats
+ * @param fmt1 - 1st mbus format to compare
+ * @param fmt2 - 2nd mbus format to compare
+ *
+ * Check whether two mbus formats are compatible.
+ *
+ * @return 1 if formats are compatible, 0 otherwise
+ */
+int v4l2_subdev_format_compare(struct v4l2_mbus_framefmt *fmt1,
+	struct v4l2_mbus_framefmt *fmt2);
+
 #endif
-- 
1.7.9.5

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