Hi Sylwester, Thanks for the patch. On Thursday 22 September 2011 18:42:30 Sylwester Nawrocki wrote: > FIELD signal is used for indicating frame field type to the frame grabber > in interlaced scan mode, as specified in ITU-R BT.601 standard. > In normal operation mode FIELD = 0 selects Field1 (odd) and FIELD = 1 > selects Field2 (even). When the FIELD signal is inverted it's the other > way around. > > Add corresponding flags for configuring the FIELD signal polarity, > V4L2_MBUS_FIELD_EVEN_HIGH for the standard (non-inverted) case and > V4L2_MBUS_FIELD_EVEN_LOW for inverted case. > > 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@xxxxxxxxxxx> > Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx> Acked-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx> > --- > include/media/v4l2-mediabus.h | 12 ++++++++++-- > 1 files changed, 10 insertions(+), 2 deletions(-) > > diff --git a/include/media/v4l2-mediabus.h b/include/media/v4l2-mediabus.h > index 6114007..83ae07e 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 +36,10 @@ > #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 = 0/1 - Field1 (odd)/Field2 (even) */ > +#define V4L2_MBUS_FIELD_EVEN_HIGH (1 << 10) > +/* FIELD = 1/0 - Field1 (odd)/Field2 (even) */ > +#define V4L2_MBUS_FIELD_EVEN_LOW (1 << 11) > > /* Serial flags */ > /* How many lanes the client can use */ -- Regards, Laurent Pinchart -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
