diff mbox

[v2,1/2] v4l2: Add the polarity flags for parallel camera bus FIELD signal

Message ID 1316450497-6723-2-git-send-email-s.nawrocki@samsung.com (mailing list archive)
State Superseded, archived
Headers

Commit Message

Sylwester Nawrocki Sept. 19, 2011, 4:41 p.m. UTC 
FIELD is an Even/Odd field selection signal, as specified in ITU-R BT.601
standard. Add corresponding flag for configuring the FIELD signal polarity.
Also add a comment about usage of V4L2_MBUS_[HV]SYNC* flags for the hardware
that uses [HV]REF signals.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
---
 include/media/v4l2-mediabus.h |   11 +++++++++--
 1 files changed, 9 insertions(+), 2 deletions(-)
diff mbox

Patch

diff --git a/include/media/v4l2-mediabus.h b/include/media/v4l2-mediabus.h
index 6114007..586fc44 100644
--- a/include/media/v4l2-mediabus.h
+++ b/include/media/v4l2-mediabus.h
@@ -22,8 +22,12 @@ 
  */
 #define V4L2_MBUS_MASTER			(1 << 0)
 #define V4L2_MBUS_SLAVE				(1 << 1)
-/* Which signal polarities it supports */
-/* Note: in BT.656 mode HSYNC and VSYNC are unused */
+/*
+ * Signal polarity flags
+ * Note: in BT.656 mode HSYNC, FIELD, and VSYNC are unused
+ * V4L2_MBUS_[HV]SYNC_* flags should be also used for specifying
+ * configuration of hardware that uses [HV]REF signals
+ */
 #define V4L2_MBUS_HSYNC_ACTIVE_HIGH		(1 << 2)
 #define V4L2_MBUS_HSYNC_ACTIVE_LOW		(1 << 3)
 #define V4L2_MBUS_VSYNC_ACTIVE_HIGH		(1 << 4)
@@ -32,6 +36,9 @@ 
 #define V4L2_MBUS_PCLK_SAMPLE_FALLING		(1 << 7)
 #define V4L2_MBUS_DATA_ACTIVE_HIGH		(1 << 8)
 #define V4L2_MBUS_DATA_ACTIVE_LOW		(1 << 9)
+/* Field selection signal for interlaced scan mode */
+#define V4L2_MBUS_FIELD_ACTIVE_HIGH		(1 << 12)
+#define V4L2_MBUS_FIELD_ACTIVE_LOW		(1 << 13)
 
 /* Serial flags */
 /* How many lanes the client can use */