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| author | Sean Young <sean@mess.org> | 2017-08-06 15:25:52 -0400 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2017-08-20 09:55:48 -0400 |
| commit | e5e26439d1c46c8a201b0d05c719e33f0f091802 (patch) | |
| tree | d4ad1aa893c13fe975129104f50392b2040003b0 /drivers/media/rc | |
| parent | 4fe055ecfc0a597e19dc159cf5289fd8f18ef9e3 (diff) | |
| download | op-kernel-dev-e5e26439d1c46c8a201b0d05c719e33f0f091802.zip op-kernel-dev-e5e26439d1c46c8a201b0d05c719e33f0f091802.tar.gz | |
media: rc-core: improve ir_raw_store_edge() handling
The gpio-ir-recv driver does many wakeups (once per edge); the saa7134
driver has special handling to only wakeup 15ms after the first edge.
Make this part of rc-core so gpio-ir-recv also benefits from
this (so a rc-5 keypress now causes 3 wakeups rather than 24).
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'drivers/media/rc')
| -rw-r--r-- | drivers/media/rc/rc-core-priv.h | 2 | ||||
| -rw-r--r-- | drivers/media/rc/rc-ir-raw.c | 15 |
2 files changed, 17 insertions, 0 deletions
diff --git a/drivers/media/rc/rc-core-priv.h b/drivers/media/rc/rc-core-priv.h index b3e7cac..cae13ef 100644 --- a/drivers/media/rc/rc-core-priv.h +++ b/drivers/media/rc/rc-core-priv.h @@ -43,6 +43,8 @@ struct ir_raw_event_ctrl { ktime_t last_event; /* when last event occurred */ enum raw_event_type last_type; /* last event type */ struct rc_dev *dev; /* pointer to the parent rc_dev */ + /* edge driver */ + struct timer_list edge_handle; /* raw decoder state follows */ struct ir_raw_event prev_ev; diff --git a/drivers/media/rc/rc-ir-raw.c b/drivers/media/rc/rc-ir-raw.c index b6d256f..07a6942 100644 --- a/drivers/media/rc/rc-ir-raw.c +++ b/drivers/media/rc/rc-ir-raw.c @@ -133,6 +133,11 @@ int ir_raw_event_store_edge(struct rc_dev *dev, enum raw_event_type type) dev->raw->last_event = now; dev->raw->last_type = type; + + if (!timer_pending(&dev->raw->edge_handle)) + mod_timer(&dev->raw->edge_handle, + jiffies + msecs_to_jiffies(15)); + return rc; } EXPORT_SYMBOL_GPL(ir_raw_event_store_edge); @@ -483,6 +488,13 @@ int ir_raw_encode_scancode(enum rc_type protocol, u32 scancode, } EXPORT_SYMBOL(ir_raw_encode_scancode); +static void edge_handle(unsigned long arg) +{ + struct rc_dev *dev = (struct rc_dev *)arg; + + ir_raw_event_handle(dev); +} + /* * Used to (un)register raw event clients */ @@ -504,6 +516,8 @@ int ir_raw_event_prepare(struct rc_dev *dev) dev->raw->dev = dev; dev->change_protocol = change_protocol; + setup_timer(&dev->raw->edge_handle, edge_handle, + (unsigned long)dev); INIT_KFIFO(dev->raw->kfifo); return 0; @@ -555,6 +569,7 @@ void ir_raw_event_unregister(struct rc_dev *dev) return; kthread_stop(dev->raw->thread); + del_timer_sync(&dev->raw->edge_handle); mutex_lock(&ir_raw_handler_lock); list_del(&dev->raw->list); |
