From 9b211f9c5a0b67afc435b86f75d78273b97db1c5 Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Date: Tue, 1 Oct 2019 04:56:38 -0300
Subject: [PATCH] media: cec-funcs.h: add status_req checks
Git-commit: 9b211f9c5a0b67afc435b86f75d78273b97db1c5
Patch-mainline: v5.5-rc1
References: git-fixes
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>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
include/uapi/linux/cec-funcs.h | 6 ++++--
1 file 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,
--
2.26.2