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From: Jiunn Chang <c0d1n61at3@gmail.com>
To: linux-media@vger.kernel.org,
	linux-kernel-mentees@lists.linuxfoundation.org
Cc: hverkuil@xs4all.nl
Subject: [PATCH] cec-compliance: system information give features
Date: Fri,  6 Sep 2019 11:44:43 -0500	[thread overview]
Message-ID: <20190906164443.1748-1-c0d1n61at3@gmail.com> (raw)

For devices on a HDMI ARC link, sinks can only support transmitter
devices and sources can only support receiver devices.

Add two checks:
 - Playback devices can only have has_arc_rx
 - TVs can only have has_arc_tx

Signed-off-by: Jiunn Chang <c0d1n61at3@gmail.com>
---
 utils/cec-compliance/cec-test.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/utils/cec-compliance/cec-test.cpp b/utils/cec-compliance/cec-test.cpp
index bbd13989..839c0fb9 100644
--- a/utils/cec-compliance/cec-test.cpp
+++ b/utils/cec-compliance/cec-test.cpp
@@ -172,6 +172,10 @@ int system_info_give_features(struct node *node, unsigned me, unsigned la, bool
 		return fail("Only Playback and Recording devices shall set the Supports Deck Control bit\n");
 	if (!cec_has_tv(1 << la) && node->remote[la].has_rec_tv)
 		return fail("Only TVs shall set the Record TV Screen bit\n");
+	if (!cec_has_playback(1 << la) && node->remote[la].has_arc_rx)
+		return fail("Only Playback devices shall set the Source Supports ARC Rx bit\n");
+	if (!cec_has_tv(1 << la) && node->remote[la].has_arc_tx)
+		return fail("Only TVs shall set the Sink Supports ARC Tx bit\n");
 
 	fail_on_test(node->remote[la].rc_profile != *rc_profile);
 	fail_on_test(node->remote[la].dev_features != *dev_features);
-- 
2.23.0


             reply	other threads:[~2019-09-06 16:44 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-06 16:44 Jiunn Chang [this message]
2019-09-09  8:05 ` [PATCH] cec-compliance: system information give features Hans Verkuil
2019-09-09 15:07 Jiunn Chang

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