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| author | Hans Verkuil <hverkuil-cisco@xs4all.nl> | 2019-10-01 04:56:38 -0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-12-31 16:34:57 +0100 |
| commit | 7d939dd8e44f8d4ffb43391aad52b7b2524ef9fe (patch) | |
| tree | d43c397f2a81ce82d4072e8079d3a0c9465cb8bd /include/uapi | |
| parent | c8ae65bf3d83156f9671d668a2c3b2830268becb (diff) | |
| download | linux-stable-7d939dd8e44f8d4ffb43391aad52b7b2524ef9fe.tar.gz linux-stable-7d939dd8e44f8d4ffb43391aad52b7b2524ef9fe.tar.bz2 linux-stable-7d939dd8e44f8d4ffb43391aad52b7b2524ef9fe.zip | |
media: cec-funcs.h: add status_req checks
[ Upstream commit 9b211f9c5a0b67afc435b86f75d78273b97db1c5 ]
The CEC_MSG_GIVE_DECK_STATUS and CEC_MSG_GIVE_TUNER_DEVICE_STATUS commands
both have a status_req argument: ON, OFF, ONCE. If ON or ONCE, then the
follower will reply with a STATUS message. Either once or whenever the
status changes (status_req == ON).
If status_req == OFF, then it will stop sending continuous status updates,
but the follower will *not* send a STATUS message in that case.
This means that if status_req == OFF, then msg->reply should be 0 as well
since no reply is expected in that case.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'include/uapi')
| -rw-r--r-- | include/uapi/linux/cec-funcs.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/include/uapi/linux/cec-funcs.h b/include/uapi/linux/cec-funcs.h index 8997d5068c08..4511b85c84df 100644 --- a/include/uapi/linux/cec-funcs.h +++ b/include/uapi/linux/cec-funcs.h @@ -923,7 +923,8 @@ static inline void cec_msg_give_deck_status(struct cec_msg *msg, msg->len = 3; msg->msg[1] = CEC_MSG_GIVE_DECK_STATUS; msg->msg[2] = status_req; - msg->reply = reply ? CEC_MSG_DECK_STATUS : 0; + msg->reply = (reply && status_req != CEC_OP_STATUS_REQ_OFF) ? + CEC_MSG_DECK_STATUS : 0; } static inline void cec_ops_give_deck_status(const struct cec_msg *msg, @@ -1027,7 +1028,8 @@ static inline void cec_msg_give_tuner_device_status(struct cec_msg *msg, msg->len = 3; msg->msg[1] = CEC_MSG_GIVE_TUNER_DEVICE_STATUS; msg->msg[2] = status_req; - msg->reply = reply ? CEC_MSG_TUNER_DEVICE_STATUS : 0; + msg->reply = (reply && status_req != CEC_OP_STATUS_REQ_OFF) ? + CEC_MSG_TUNER_DEVICE_STATUS : 0; } static inline void cec_ops_give_tuner_device_status(const struct cec_msg *msg, |