[PATCH v2] media: ttpci: remove autorepeat handling and use timer_setup

From: Sean Young
Date: Tue Oct 31 2017 - 16:11:52 EST


Leave the autorepeat handling up to the input layer, and move
to the new timer API.

Compile tested only.

Signed-off-by: Sean Young <sean@xxxxxxxx>
---
v2:
- fixes and improvements from Dmitry Torokhov

drivers/media/pci/ttpci/av7110.h | 2 +-
drivers/media/pci/ttpci/av7110_ir.c | 56 +++++++++++++------------------------
2 files changed, 21 insertions(+), 37 deletions(-)

diff --git a/drivers/media/pci/ttpci/av7110.h b/drivers/media/pci/ttpci/av7110.h
index 347827925c14..bcb72ecbedc0 100644
--- a/drivers/media/pci/ttpci/av7110.h
+++ b/drivers/media/pci/ttpci/av7110.h
@@ -93,7 +93,7 @@ struct infrared {
u8 inversion;
u16 last_key;
u16 last_toggle;
- u8 delay_timer_finished;
+ bool keypressed;
};


diff --git a/drivers/media/pci/ttpci/av7110_ir.c b/drivers/media/pci/ttpci/av7110_ir.c
index ca05198de2c2..ee414803e6b5 100644
--- a/drivers/media/pci/ttpci/av7110_ir.c
+++ b/drivers/media/pci/ttpci/av7110_ir.c
@@ -84,15 +84,16 @@ static u16 default_key_map [256] = {


/* key-up timer */
-static void av7110_emit_keyup(unsigned long parm)
+static void av7110_emit_keyup(struct timer_list *t)
{
- struct infrared *ir = (struct infrared *) parm;
+ struct infrared *ir = from_timer(ir, t, keyup_timer);

- if (!ir || !test_bit(ir->last_key, ir->input_dev->key))
+ if (!ir || !ir->keypressed)
return;

input_report_key(ir->input_dev, ir->last_key, 0);
input_sync(ir->input_dev);
+ ir->keypressed = false;
}


@@ -152,29 +153,18 @@ static void av7110_emit_key(unsigned long parm)
return;
}

- if (timer_pending(&ir->keyup_timer)) {
- del_timer(&ir->keyup_timer);
- if (ir->last_key != keycode || toggle != ir->last_toggle) {
- ir->delay_timer_finished = 0;
- input_event(ir->input_dev, EV_KEY, ir->last_key, 0);
- input_event(ir->input_dev, EV_KEY, keycode, 1);
- input_sync(ir->input_dev);
- } else if (ir->delay_timer_finished) {
- input_event(ir->input_dev, EV_KEY, keycode, 2);
- input_sync(ir->input_dev);
- }
- } else {
- ir->delay_timer_finished = 0;
- input_event(ir->input_dev, EV_KEY, keycode, 1);
- input_sync(ir->input_dev);
- }
+ if (ir->keypressed &&
+ (ir->last_key != keycode || toggle != ir->last_toggle))
+ input_event(ir->input_dev, EV_KEY, ir->last_key, 0);

+ input_event(ir->input_dev, EV_KEY, keycode, 1);
+ input_sync(ir->input_dev);
+
+ ir->keypressed = true;
ir->last_key = keycode;
ir->last_toggle = toggle;

- ir->keyup_timer.expires = jiffies + UP_TIMEOUT;
- add_timer(&ir->keyup_timer);
-
+ mod_timer(&ir->keyup_timer, jiffies + UP_TIMEOUT);
}


@@ -204,16 +194,6 @@ static void input_register_keys(struct infrared *ir)
ir->input_dev->keycodemax = ARRAY_SIZE(ir->key_map);
}

-
-/* called by the input driver after rep[REP_DELAY] ms */
-static void input_repeat_key(unsigned long parm)
-{
- struct infrared *ir = (struct infrared *) parm;
-
- ir->delay_timer_finished = 1;
-}
-
-
/* check for configuration changes */
int av7110_check_ir_config(struct av7110 *av7110, int force)
{
@@ -333,8 +313,7 @@ int av7110_ir_init(struct av7110 *av7110)
av_list[av_cnt++] = av7110;
av7110_check_ir_config(av7110, true);

- setup_timer(&av7110->ir.keyup_timer, av7110_emit_keyup,
- (unsigned long)&av7110->ir);
+ timer_setup(&av7110->ir.keyup_timer, av7110_emit_keyup, 0);

input_dev = input_allocate_device();
if (!input_dev)
@@ -365,8 +344,13 @@ int av7110_ir_init(struct av7110 *av7110)
input_free_device(input_dev);
return err;
}
- input_dev->timer.function = input_repeat_key;
- input_dev->timer.data = (unsigned long) &av7110->ir;
+
+ /*
+ * Input core's default autorepeat is 33 cps with 250 msec
+ * delay, let's adjust to numbers more suitable for remote
+ * control.
+ */
+ input_enable_softrepeat(input_dev, 250, 125);

if (av_cnt == 1) {
e = proc_create("av7110_ir", S_IWUSR, NULL, &av7110_ir_proc_fops);
--
2.13.6