diff options
| author |   Hans Verkuil <hans.verkuil@cisco.com> | 2018-06-28 07:43:46 -0400 |
|---|---|---|
| committer |   Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2018-07-25 07:11:48 -0400 |
| commit | 4786b0d6f3ca6da8db02b0a58cd2b785cb0b80ab (patch) | |
| tree | 81105439c95a742d86411de731972f12faf20659 /drivers/media/cec/cec-adap.c | |
| parent | media: uapi/linux/cec.h: add 5V events (diff) | |
| download | linux-dev-4786b0d6f3ca6da8db02b0a58cd2b785cb0b80ab.tar.xz linux-dev-4786b0d6f3ca6da8db02b0a58cd2b785cb0b80ab.zip | |
media: cec: add support for 5V signal testing
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>
Diffstat (limited to 'drivers/media/cec/cec-adap.c')
| -rw-r--r-- | drivers/media/cec/cec-adap.c | 18 |
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. * |