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media: cec: Respond to unregistered initiators, when applicable

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Running CEC 1.4 compliance test we get the following error on test
11.1.6.2: "ERROR: The DUT did not broadcast a
<Report Physical Address> message to the unregistered device."

Fix this by letting GIVE_PHYSICAL_ADDR message respond to unregistered
device. Also, GIVE_DEVICE_VENDOR_ID and GIVE_FEATURES fall in the
same category so, respond also to these messages.

With this fix we pass CEC 1.4 official compliance.

Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Cc: Joao Pinto <jpinto@synopsys.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: <stable@vger.kernel.org>      # for v4.10 and up
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Jose Abreu 2017-09-14 11:23:38 -04:00 committed by Mauro Carvalho Chehab
parent e949f61461
commit 845d6524d6
1 changed files with 10 additions and 3 deletions
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13
drivers/media/cec/cec-adap.c
View file

@ -1794,12 +1794,19 @@ static int cec_receive_notify(struct cec_adapter *adap, struct cec_msg *msg,
*/
switch (msg->msg[1]) {
case CEC_MSG_GET_CEC_VERSION:
case CEC_MSG_GIVE_DEVICE_VENDOR_ID:
case CEC_MSG_ABORT:
case CEC_MSG_GIVE_DEVICE_POWER_STATUS:
case CEC_MSG_GIVE_PHYSICAL_ADDR:
case CEC_MSG_GIVE_OSD_NAME:
/*
* These messages reply with a directed message, so ignore if
* the initiator is Unregistered.
*/
if (!adap->passthrough && from_unregistered)
return 0;
/* Fall through */
case CEC_MSG_GIVE_DEVICE_VENDOR_ID:
case CEC_MSG_GIVE_FEATURES:
case CEC_MSG_GIVE_PHYSICAL_ADDR:
/*
* Skip processing these messages if the passthrough mode
* is on.
@ -1807,7 +1814,7 @@ static int cec_receive_notify(struct cec_adapter *adap, struct cec_msg *msg,
if (adap->passthrough)
goto skip_processing;
/* Ignore if addressing is wrong */
if (is_broadcast || from_unregistered)
if (is_broadcast)
return 0;
break;