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| author | Andy Walls <awalls@md.metrocast.net> | 2010-07-18 19:57:25 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2010-08-08 23:42:54 -0300 |
| commit | 5a28d9a320c865007da830c065bcaecfe91b3932 (patch) | |
| tree | 60ca62e075c8b917165582707f1b0748512a471e /include/media/v4l2-subdev.h | |
| parent | d06d5777b211112e8355e2f5a700c6a9babfdd6f (diff) | |
| download | lwn-5a28d9a320c865007da830c065bcaecfe91b3932.tar.gz lwn-5a28d9a320c865007da830c065bcaecfe91b3932.zip | |
V4L/DVB: v4l2_subdev, cx23885: Differentiate IR carrier sense and I/O pin inversion
There is a distinction on IR Tx for the CX2388[578] chips of carrier
sense inversion (space is a carrier burst and mark is no burst) and I/O
pin level inversion (0 is high output level, 1 is low output level).
Allow the caller to set these parameters distinctly as v4l2_subdevice
IR parameters. This permits the IR device to be configured and enabled
without the IR Tx LED being on during idle/space time due to an external
hardware level inversion
Signed-off-by: Andy Walls <awalls@md.metrocast.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'include/media/v4l2-subdev.h')
| -rw-r--r-- | include/media/v4l2-subdev.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h index 9195ad490ee2..a780cca185fd 100644 --- a/include/media/v4l2-subdev.h +++ b/include/media/v4l2-subdev.h @@ -379,7 +379,10 @@ struct v4l2_subdev_ir_parameters { u32 max_pulse_width; /* ns, valid only for baseband signal */ unsigned int carrier_freq; /* Hz, valid only for modulated signal*/ unsigned int duty_cycle; /* percent, valid only for modulated signal*/ - bool invert; /* logically invert sense of mark/space */ + bool invert_level; /* invert signal level */ + + /* Tx only */ + bool invert_carrier_sense; /* Send 0/space as a carrier burst */ /* Rx only */ u32 noise_filter_min_width; /* ns, min time of a valid pulse */ |