V4L/DVB (11327): ov772x: add edge contrl support

Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 35 insertions, 0 deletions

diff --git a/include/media/ov772x.h b/include/media/ov772x.h
index 57db48dd85b8..30d9629198ef 100644
--- a/include/media/ov772x.h
+++ b/include/media/ov772x.h
@@ -17,10 +17,45 @@
 #define OV772X_FLAG_VFLIP     0x00000001 /* Vertical flip image */
 #define OV772X_FLAG_HFLIP     0x00000002 /* Horizontal flip image */
 
+/*
+ * for Edge ctrl
+ *
+ * strength also control Auto or Manual Edge Control Mode
+ * see also OV772X_MANUAL_EDGE_CTRL
+ */
+struct ov772x_edge_ctrl {
+        unsigned char strength;
+        unsigned char threshold;
+        unsigned char upper;
+        unsigned char lower;
+};
+
+#define OV772X_MANUAL_EDGE_CTRL 0x80 /* un-used bit of strength */
+#define EDGE_STRENGTH_MASK      0x1F
+#define EDGE_THRESHOLD_MASK     0x0F
+#define EDGE_UPPER_MASK         0xFF
+#define EDGE_LOWER_MASK         0xFF
+
+#define OV772X_AUTO_EDGECTRL(u, l)      \
+{                                       \
+        .upper = (u & EDGE_UPPER_MASK), \
+        .lower = (l & EDGE_LOWER_MASK), \
+}
+
+#define OV772X_MANUAL_EDGECTRL(s, t)                                    \
+{                                                                       \
+        .strength  = (s & EDGE_STRENGTH_MASK) | OV772X_MANUAL_EDGE_CTRL,\
+        .threshold = (t & EDGE_THRESHOLD_MASK),                         \
+}
+
+/*
+ * ov772x camera info
+ */
 struct ov772x_camera_info {
         unsigned long          buswidth;
         unsigned long          flags;
         struct soc_camera_link link;
+        struct ov772x_edge_ctrl edgectrl;
 };
 
 #endif /* __OV772X_H__ */