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media: cec: Respond to unregistered initiators, when applicable
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>
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1 changed files with 10 additions and 3 deletions
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@ -1794,12 +1794,19 @@ static int cec_receive_notify(struct cec_adapter *adap, struct cec_msg *msg,
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*/
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switch (msg->msg[1]) {
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case CEC_MSG_GET_CEC_VERSION:
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case CEC_MSG_GIVE_DEVICE_VENDOR_ID:
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case CEC_MSG_ABORT:
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case CEC_MSG_GIVE_DEVICE_POWER_STATUS:
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case CEC_MSG_GIVE_PHYSICAL_ADDR:
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case CEC_MSG_GIVE_OSD_NAME:
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/*
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* These messages reply with a directed message, so ignore if
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* the initiator is Unregistered.
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*/
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if (!adap->passthrough && from_unregistered)
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return 0;
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/* Fall through */
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case CEC_MSG_GIVE_DEVICE_VENDOR_ID:
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case CEC_MSG_GIVE_FEATURES:
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case CEC_MSG_GIVE_PHYSICAL_ADDR:
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/*
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* Skip processing these messages if the passthrough mode
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* is on.
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@ -1807,7 +1814,7 @@ static int cec_receive_notify(struct cec_adapter *adap, struct cec_msg *msg,
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if (adap->passthrough)
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goto skip_processing;
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/* Ignore if addressing is wrong */
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if (is_broadcast || from_unregistered)
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if (is_broadcast)
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return 0;
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break;
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