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

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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@cisco.com>
Reviewed-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Hans Verkuil 2017-07-11 03:30:38 -03:00 committed by Mauro Carvalho Chehab
parent f987cde233
commit 6303d97873
1 changed files with 5 additions and 0 deletions
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5
include/uapi/linux/cec.h
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@ -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)