diff options
| author | Javier Martin <javier.martin@vista-silicon.com> | 2012-01-05 10:57:39 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-01-07 11:54:52 -0200 |
| commit | ec2c4f3f93cb9ae2b09b8e942dd75ad3bdf23c9d (patch) | |
| tree | f3f720b26fb9f4507faa802ccc4b2df8fb04d5ab | |
| parent | e99663417f626c9bfdc8117b35670a0292b820e6 (diff) | |
[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>
| -rw-r--r-- | drivers/media/video/tvp5150.c | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/drivers/media/video/tvp5150.c b/drivers/media/video/tvp5150.c index fc91a1ec54a..6be9910a6e2 100644 --- 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 = { |