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Hans Verkuil dcceb1eaf2 [media] cec: add CEC_LOG_ADDRS_FL_ALLOW_UNREG_FALLBACK flag
Currently if none of the requested logical addresses can be claimed, the
framework will fall back to the Unregistered logical address.

Add a flag to enable this explicitly. By default it will just go back to
the unconfigured state.

Usually Unregistered is not something you want since the functionality is
very limited. Unless the application has support for this, it will fail
to work correctly. So require that the application explicitly requests
this.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-08-22 14:00:51 -03:00
Hans Verkuil 980e0b36b5 [media] cec: split the timestamp into an rx and tx timestamp
When transmitting a message and waiting for a reply it would be good
to know the time between when the message was transmitted and when
the reply arrived. With only one timestamp field it was set to when
the reply arrived and the original transmit time was overwritten.

Just taking the timestamp in userspace right before CEC_TRANSMIT is
called is not reliable, since the actual transmit can be delayed if
the CEC bus is busy. Only the driver can fill this in accurately.

So split up the ts field into an rx_ts and a tx_ts. Also move the
status fields to after the 'reply' field: they were placed in a
strange position and make much more sense when grouped with the
other status-related fields.

This patch also makes sure that the timestamp is taken as soon as
possible.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-13 07:59:30 -03:00
Hans Verkuil 12655445a2 [media] cec.h/cec-funcs.h: add option to use BSD license
Like the videodev2.h and other headers, explicitly allow these headers
to be used with the BSD license.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-08 18:31:33 -03:00
Hans Verkuil 3132583e5b [media] cec.h: add cec header
This header contains the CEC public API. Since the CEC framework will
initially be part of staging this header is kept out of include/uapi for
the time being until the CEC framework will be moved out of staging.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-06-28 09:56:15 -03:00