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authorHans Verkuil <hverkuil@xs4all.nl>2017-06-07 11:46:10 -0300
committerMauro Carvalho Chehab <mchehab@s-opensource.com>2017-06-20 06:52:33 -0300
commitc94cdc1e0c3589856de9d4ecafeeffdb349a8e0b (patch)
treeca1b349082b02d9284872d81f51d21858908b657 /drivers/media/cec
parent135327899d2874f2b65b3a3626b37d87df9e6a05 (diff)
[media] cec: add cec_transmit_attempt_done helper function
A simpler variant of cec_transmit_done to be used where the HW does just a single attempt at a transmit. So if the status indicates an error, then the corresponding error count will always be 1 and this function figures that out based on the status argument. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'drivers/media/cec')
-rw-r--r--drivers/media/cec/cec-adap.c26
1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/media/cec/cec-adap.c b/drivers/media/cec/cec-adap.c
index 61e39bbe3cf9..bd76c15ade4f 100644
--- a/drivers/media/cec/cec-adap.c
+++ b/drivers/media/cec/cec-adap.c
@@ -553,6 +553,32 @@ unlock:
}
EXPORT_SYMBOL_GPL(cec_transmit_done);
+void cec_transmit_attempt_done(struct cec_adapter *adap, u8 status)
+{
+ switch (status) {
+ case CEC_TX_STATUS_OK:
+ cec_transmit_done(adap, status, 0, 0, 0, 0);
+ return;
+ case CEC_TX_STATUS_ARB_LOST:
+ cec_transmit_done(adap, status, 1, 0, 0, 0);
+ return;
+ case CEC_TX_STATUS_NACK:
+ cec_transmit_done(adap, status, 0, 1, 0, 0);
+ return;
+ case CEC_TX_STATUS_LOW_DRIVE:
+ cec_transmit_done(adap, status, 0, 0, 1, 0);
+ return;
+ case CEC_TX_STATUS_ERROR:
+ cec_transmit_done(adap, status, 0, 0, 0, 1);
+ return;
+ default:
+ /* Should never happen */
+ WARN(1, "cec-%s: invalid status 0x%02x\n", adap->name, status);
+ return;
+ }
+}
+EXPORT_SYMBOL_GPL(cec_transmit_attempt_done);
+
/*
* Called when waiting for a reply times out.
*/