From: Hans Verkuil <hans.verkuil@xxxxxxxxx>
Add support for low-level CEC pin monitoring. This adds a new monitor
mode, a new capability and two new events.
Signed-off-by: Hans Verkuil <hans.verkuil@xxxxxxxxx>
---
include/uapi/linux/cec.h | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/include/uapi/linux/cec.h b/include/uapi/linux/cec.h
index 44579a24f95d..bba73f33c8aa 100644
--- a/include/uapi/linux/cec.h
+++ b/include/uapi/linux/cec.h
@@ -318,6 +318,7 @@ static inline int cec_is_unconfigured(__u16 log_addr_mask)
#define CEC_MODE_FOLLOWER (0x1 << 4)
#define CEC_MODE_EXCL_FOLLOWER (0x2 << 4)
#define CEC_MODE_EXCL_FOLLOWER_PASSTHRU (0x3 << 4)
+#define CEC_MODE_MONITOR_PIN (0xd << 4)
#define CEC_MODE_MONITOR (0xe << 4)
#define CEC_MODE_MONITOR_ALL (0xf << 4)
#define CEC_MODE_FOLLOWER_MSK 0xf0
@@ -338,6 +339,8 @@ static inline int cec_is_unconfigured(__u16 log_addr_mask)
#define CEC_CAP_MONITOR_ALL (1 << 5)
/* Hardware can use CEC only if the HDMI HPD pin is high. */
#define CEC_CAP_NEEDS_HPD (1 << 6)
+/* Hardware can monitor CEC pin transitions */
+#define CEC_CAP_MONITOR_PIN (1 << 7)
/**
* struct cec_caps - CEC capabilities structure.
@@ -405,6 +408,8 @@ struct cec_log_addrs {
* didn't empty the message queue in time
*/
#define CEC_EVENT_LOST_MSGS 2
+#define CEC_EVENT_PIN_LOW 3
+#define CEC_EVENT_PIN_HIGH 4
#define CEC_EVENT_FL_INITIAL_STATE (1 << 0)
--
2.11.0
