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Commit 6303d978 authored by Hans Verkuil's avatar Hans Verkuil Committed by Mauro Carvalho Chehab
Browse files

media: linux/cec.h: add pin monitoring API support 



Add support for low-level CEC pin monitoring. This adds a new monitor
mode, a new capability and two new events.

Signed-off-by: default avatarHans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: default avatarMaxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@s-opensource.com>
parent f987cde2

include/uapi/linux/cec.h

+5 −0
Original line number Diff line number Diff line
@@ -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)