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media: cec: add support for 5V signal testing

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Add support for the new 5V CEC events

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This commit is contained in:
Hans Verkuil
2018-06-28 07:43:46 -04:00
committed by Mauro Carvalho Chehab
parent f48a534adb
commit 4786b0d6f3
4 changed files with 40 additions and 2 deletions
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18
drivers/media/cec/cec-adap.c
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@@ -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.
*