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path: root/drivers/media/cec/cec-adap.c
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Diffstat (limited to 'drivers/media/cec/cec-adap.c')
-rw-r--r--drivers/media/cec/cec-adap.c18
1 files changed, 17 insertions, 1 deletions
diff --git a/drivers/media/cec/cec-adap.c b/drivers/media/cec/cec-adap.c
index b7fad0ec5710..030b2602faf0 100644
--- a/drivers/media/cec/cec-adap.c
+++ b/drivers/media/cec/cec-adap.c
@@ -74,7 +74,7 @@ void cec_queue_event_fh(struct cec_fh *fh,
 			const struct cec_event *new_ev, u64 ts)
 {
 	static const u16 max_events[CEC_NUM_EVENTS] = {
-		1, 1, 800, 800, 8, 8,
+		1, 1, 800, 800, 8, 8, 8, 8
 	};
 	struct cec_event_entry *entry;
 	unsigned int ev_idx = new_ev->event - 1;
@@ -176,6 +176,22 @@ void cec_queue_pin_hpd_event(struct cec_adapter *adap, bool is_high, ktime_t ts)
 }
 EXPORT_SYMBOL_GPL(cec_queue_pin_hpd_event);
 
+/* Notify userspace that the 5V pin changed state at the given time. */
+void cec_queue_pin_5v_event(struct cec_adapter *adap, bool is_high, ktime_t ts)
+{
+	struct cec_event ev = {
+		.event = is_high ? CEC_EVENT_PIN_5V_HIGH :
+				   CEC_EVENT_PIN_5V_LOW,
+	};
+	struct cec_fh *fh;
+
+	mutex_lock(&adap->devnode.lock);
+	list_for_each_entry(fh, &adap->devnode.fhs, list)
+		cec_queue_event_fh(fh, &ev, ktime_to_ns(ts));
+	mutex_unlock(&adap->devnode.lock);
+}
+EXPORT_SYMBOL_GPL(cec_queue_pin_5v_event);
+
 /*
  * Queue a new message for this filehandle.
  *