media: tvp5150: Add mbus_fmt callbacks.
Commit Message
These callbacks allow a host video driver
to poll video formats supported by tvp5150.
---
Changes since v1:
Fix standard handling in tvp5150_mbus_fmt()
Signed-off-by: Javier Martin <javier.martin@vista-silicon.com>
---
drivers/media/video/tvp5150.c | 67 +++++++++++++++++++++++++++++++++++++++++
1 files changed, 67 insertions(+), 0 deletions(-)
Comments
Hi Mauro,
any more comments on this?
Will you please merge the last version which includes the fixes you requested?
Thank you.
@@ -778,6 +778,70 @@ 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
****************************************************************************/
@@ -930,6 +994,9 @@ 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 = {