Autodetect input's standard using field frequency detection feature (FIDT in status byte at 0x1F) of the chips saa7111/ saa7111a/saa7113/saa7114/saa7118.
Signed-off-by: Anatolij Gustschin <[email protected]> --- Changes since first patch version: - reworked for chips other than saa7115 - fixed to return V4L2_STD_525_60 / V4L2_STD_625_50 instead of V4L2_STD_NTSC / V4L2_STD_PAL - adapted the commit message drivers/media/video/saa7115.c | 11 ++++++++++- 1 files changed, 10 insertions(+), 1 deletions(-) diff --git a/drivers/media/video/saa7115.c b/drivers/media/video/saa7115.c index 301c62b..f35459d 100644 --- a/drivers/media/video/saa7115.c +++ b/drivers/media/video/saa7115.c @@ -1348,8 +1348,17 @@ static int saa711x_querystd(struct v4l2_subdev *sd, v4l2_std_id *std) int reg1e; *std = V4L2_STD_ALL; - if (state->ident != V4L2_IDENT_SAA7115) + if (state->ident != V4L2_IDENT_SAA7115) { + int reg1f = saa711x_read(sd, R_1F_STATUS_BYTE_2_VD_DEC); + + if (reg1f & 0x20) + *std = V4L2_STD_525_60; + else + *std = V4L2_STD_625_50; + return 0; + } + reg1e = saa711x_read(sd, R_1E_STATUS_BYTE_1_VD_DEC); switch (reg1e & 0x03) { -- 1.7.1 -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
