[media] media: tvp5150: Add mbus_fmt callbacks

These callbacks allow a host video driver
to poll video formats supported by tvp5150.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --git a/drivers/media/video/tvp5150.c b/drivers/media/video/tvp5150.c
index fc91a1ec54a01e26e1939fe5149c24e5181ca363..6be9910a6e24a8fb2f22985701e23e43fdab7c5f 100644 (file)
--- a/drivers/media/video/tvp5150.c
+++ b/drivers/media/video/tvp5150.c
@@ -779,6 +779,70 @@ static int tvp5150_s_ctrl(struct v4l2_ctrl *ctrl)
        return -EINVAL;
 }
 
+static v4l2_std_id tvp5150_read_std(struct v4l2_subdev *sd)
+{
+       int val = tvp5150_read(sd, TVP5150_STATUS_REG_5);
+
+       switch (val & 0x0F) {
+       case 0x01:
+               return V4L2_STD_NTSC;
+       case 0x03:
+               return V4L2_STD_PAL;
+       case 0x05:
+               return V4L2_STD_PAL_M;
+       case 0x07:
+               return V4L2_STD_PAL_N | V4L2_STD_PAL_Nc;
+       case 0x09:
+               return V4L2_STD_NTSC_443;
+       case 0xb:
+               return V4L2_STD_SECAM;
+       default:
+               return V4L2_STD_UNKNOWN;
+       }
+}
+
+static int tvp5150_enum_mbus_fmt(struct v4l2_subdev *sd, unsigned index,
+                                               enum v4l2_mbus_pixelcode *code)
+{
+       if (index)
+               return -EINVAL;
+
+       *code = V4L2_MBUS_FMT_YUYV8_2X8;
+       return 0;
+}
+
+static int tvp5150_mbus_fmt(struct v4l2_subdev *sd,
+                           struct v4l2_mbus_framefmt *f)
+{
+       struct tvp5150 *decoder = to_tvp5150(sd);
+       v4l2_std_id std;
+
+       if (f == NULL)
+               return -EINVAL;
+
+       tvp5150_reset(sd, 0);
+
+       /* Calculate height and width based on current standard */
+       if (decoder->norm == V4L2_STD_ALL)
+               std = tvp5150_read_std(sd);
+       else
+               std = decoder->norm;
+
+       f->width = 720;
+       if (std & V4L2_STD_525_60)
+               f->height = 480;
+       else
+               f->height = 576;
+
+       f->code = V4L2_MBUS_FMT_YUYV8_2X8;
+       f->field = V4L2_FIELD_SEQ_TB;
+       f->colorspace = V4L2_COLORSPACE_SMPTE170M;
+
+       v4l2_dbg(1, debug, sd, "width = %d, height = %d\n", f->width,
+                       f->height);
+       return 0;
+}
+
 /****************************************************************************
                        I2C Command
  ****************************************************************************/
@@ -931,6 +995,9 @@ static const struct v4l2_subdev_tuner_ops tvp5150_tuner_ops = {
 
 static const struct v4l2_subdev_video_ops tvp5150_video_ops = {
        .s_routing = tvp5150_s_routing,
+       .enum_mbus_fmt = tvp5150_enum_mbus_fmt,
+       .s_mbus_fmt = tvp5150_mbus_fmt,
+       .try_mbus_fmt = tvp5150_mbus_fmt,
 };
 
 static const struct v4l2_subdev_vbi_ops tvp5150_vbi_ops = {