From: Donghoon Han <nazgul33@gmail.com>
To: linux-input@vger.kernel.org
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>,
Daniel Mack <daniel@caiaq.de>,
linux-kernel@vger.kernel.org, Steven Han <nazgul33@gmail.com>
Subject: [PATCH 1/2] Input: rotary_encoder - Support key events
Date: Sun, 6 Jan 2019 05:26:58 +0900 [thread overview]
Message-ID: <20190105202659.20198-2-nazgul33@gmail.com> (raw)
In-Reply-To: <20190105202659.20198-1-nazgul33@gmail.com>
From: Steven Han <nazgul33@gmail.com>
Support generating EV_KEY pair, instead of EV_REL.
Signed-off-by: Donghoon Han <nazgul33@gmail.com>
---
drivers/input/misc/rotary_encoder.c | 23 +++++++++++++++++++++--
1 file changed, 21 insertions(+), 2 deletions(-)
diff --git a/drivers/input/misc/rotary_encoder.c b/drivers/input/misc/rotary_encoder.c
index 72eee6d55527..180e35884289 100644
--- a/drivers/input/misc/rotary_encoder.c
+++ b/drivers/input/misc/rotary_encoder.c
@@ -41,6 +41,8 @@ struct rotary_encoder {
u32 steps;
u32 axis;
bool relative_axis;
+ bool relative_keys;
+ u32 keycodes[2];
bool rollover;
enum rotary_encoder_encoding encoding;
@@ -79,6 +81,10 @@ static void rotary_encoder_report_event(struct rotary_encoder *encoder)
if (encoder->relative_axis) {
input_report_rel(encoder->input,
encoder->axis, encoder->dir);
+ } else if (encoder->relative_keys) {
+ u32 keycode = encoder->keycodes[encoder->dir > 0];
+ input_event(encoder->input, EV_KEY, keycode, 1);
+ input_event(encoder->input, EV_KEY, keycode, 0);
} else {
unsigned int pos = encoder->pos;
@@ -237,6 +243,16 @@ static int rotary_encoder_probe(struct platform_device *pdev)
device_property_read_u32(dev, "linux,axis", &encoder->axis);
encoder->relative_axis =
device_property_read_bool(dev, "rotary-encoder,relative-axis");
+ encoder->relative_keys =
+ device_property_read_bool(dev, "rotary-encoder,relative-keys");
+ if (encoder->relative_keys) {
+ err = device_property_read_u32_array(dev,
+ "rotary-encoder,relative-keycodes",
+ encoder->keycodes, 2);
+ if (err)
+ dev_err(dev, "unable to get keycodes: %d\n", err);
+ return err;
+ }
encoder->gpios = devm_gpiod_get_array(dev, NULL, GPIOD_IN);
if (IS_ERR(encoder->gpios)) {
@@ -260,9 +276,12 @@ static int rotary_encoder_probe(struct platform_device *pdev)
input->id.bustype = BUS_HOST;
input->dev.parent = dev;
- if (encoder->relative_axis)
+ if (encoder->relative_axis) {
input_set_capability(input, EV_REL, encoder->axis);
- else
+ } else if (encoder->relative_keys) {
+ input_set_capability(input, EV_KEY, encoder->keycodes[0]);
+ input_set_capability(input, EV_KEY, encoder->keycodes[1]);
+ } else
input_set_abs_params(input,
encoder->axis, 0, encoder->steps, 0, 1);
--
2.17.1
next prev parent reply other threads:[~2019-01-05 20:27 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-05 20:26 [PATCH 0/2] input: rotary-encoder: Support key events Donghoon Han
2019-01-05 20:26 ` Donghoon Han [this message]
2019-01-05 23:12 ` [PATCH 1/2] Input: rotary_encoder - " Dmitry Torokhov
2019-01-06 3:36 ` nazgul33
2019-01-07 0:38 ` Dmitry Torokhov
2019-01-05 20:26 ` [PATCH 2/2] Input: rotaty-encoder - Add DT binding document Donghoon Han
2019-01-05 23:11 ` Dmitry Torokhov
2019-01-06 3:41 ` nazgul33
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