From 57c642cb45d6f7d0d950c3bc67439989062ac743 Mon Sep 17 00:00:00 2001 From: Sean Young Date: Thu, 23 Nov 2017 17:37:10 -0500 Subject: media: cec: move cec autorepeat handling to rc-core CEC autorepeat is different than other protocols. Autorepeat is triggered by the first repeated user control pressed CEC message, rather than a fixed REP_DELAY. This change also does away with the KEY_UP event directly after the first KEY_DOWN event, which was used to stop autorepeat from starting. See commit a9a249a2c997 ("media: cec: fix remote control passthrough") for the original change. Acked-by: Hans Verkuil Signed-off-by: Sean Young Signed-off-by: Mauro Carvalho Chehab --- drivers/media/rc/rc-main.c | 49 +++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 48 insertions(+), 1 deletion(-) (limited to 'drivers/media/rc/rc-main.c') diff --git a/drivers/media/rc/rc-main.c b/drivers/media/rc/rc-main.c index 5830cb2c5943..1870b7999062 100644 --- a/drivers/media/rc/rc-main.c +++ b/drivers/media/rc/rc-main.c @@ -597,6 +597,7 @@ static void ir_do_keyup(struct rc_dev *dev, bool sync) return; IR_dprintk(1, "keyup key 0x%04x\n", dev->last_keycode); + del_timer_sync(&dev->timer_repeat); input_report_key(dev->input_dev, dev->last_keycode, 0); led_trigger_event(led_feedback, LED_OFF); if (sync) @@ -650,6 +651,31 @@ static void ir_timer_keyup(struct timer_list *t) spin_unlock_irqrestore(&dev->keylock, flags); } +/** + * ir_timer_repeat() - generates a repeat event after a timeout + * + * @t: a pointer to the struct timer_list + * + * This routine will generate a soft repeat event every REP_PERIOD + * milliseconds. + */ +static void ir_timer_repeat(struct timer_list *t) +{ + struct rc_dev *dev = from_timer(dev, t, timer_repeat); + struct input_dev *input = dev->input_dev; + unsigned long flags; + + spin_lock_irqsave(&dev->keylock, flags); + if (dev->keypressed) { + input_event(input, EV_KEY, dev->last_keycode, 2); + input_sync(input); + if (input->rep[REP_PERIOD]) + mod_timer(&dev->timer_repeat, jiffies + + msecs_to_jiffies(input->rep[REP_PERIOD])); + } + spin_unlock_irqrestore(&dev->keylock, flags); +} + /** * rc_repeat() - signals that a key is still pressed * @dev: the struct rc_dev descriptor of the device @@ -732,6 +758,22 @@ static void ir_do_keydown(struct rc_dev *dev, enum rc_proto protocol, led_trigger_event(led_feedback, LED_FULL); } + /* + * For CEC, start sending repeat messages as soon as the first + * repeated message is sent, as long as REP_DELAY = 0 and REP_PERIOD + * is non-zero. Otherwise, the input layer will generate repeat + * messages. + */ + if (!new_event && keycode != KEY_RESERVED && + dev->allowed_protocols == RC_PROTO_BIT_CEC && + !timer_pending(&dev->timer_repeat) && + dev->input_dev->rep[REP_PERIOD] && + !dev->input_dev->rep[REP_DELAY]) { + input_event(dev->input_dev, EV_KEY, keycode, 2); + mod_timer(&dev->timer_repeat, jiffies + + msecs_to_jiffies(dev->input_dev->rep[REP_PERIOD])); + } + input_sync(dev->input_dev); } @@ -1599,6 +1641,7 @@ struct rc_dev *rc_allocate_device(enum rc_driver_type type) input_set_drvdata(dev->input_dev, dev); timer_setup(&dev->timer_keyup, ir_timer_keyup, 0); + timer_setup(&dev->timer_repeat, ir_timer_repeat, 0); spin_lock_init(&dev->rc_map.lock); spin_lock_init(&dev->keylock); @@ -1732,7 +1775,10 @@ static int rc_setup_rx_device(struct rc_dev *dev) * to avoid wrong repetition of the keycodes. Note that this must be * set after the call to input_register_device(). */ - dev->input_dev->rep[REP_DELAY] = 500; + if (dev->allowed_protocols == RC_PROTO_BIT_CEC) + dev->input_dev->rep[REP_DELAY] = 0; + else + dev->input_dev->rep[REP_DELAY] = 500; /* * As a repeat event on protocols like RC-5 and NEC take as long as @@ -1884,6 +1930,7 @@ void rc_unregister_device(struct rc_dev *dev) return; del_timer_sync(&dev->timer_keyup); + del_timer_sync(&dev->timer_repeat); if (dev->driver_type == RC_DRIVER_IR_RAW) ir_raw_event_unregister(dev); -- cgit v1.2.3