Commit 484921f5 authored by Hans de Goede's avatar Hans de Goede Committed by Jiri Kosina
Browse files

HID: lenovo: Factor out generic parts of the LED code 



Factor out the generic parts of the tpkbd LED code, so that they can be
re-used for supporting the LEDs on the Thinkpad 10 ultrabook kbd.

Signed-off-by: default avatarHans de Goede <hdegoede@redhat.com>
Signed-off-by: default avatarJiri Kosina <jkosina@suse.cz>
parent b72cdfa8

drivers/hid/hid-lenovo.c

+58 −40
Original line number Diff line number Diff line
@@ -638,7 +638,18 @@ static const struct attribute_group lenovo_attr_group_tpkbd = { 
	.attrs = lenovo_attributes_tpkbd,

};



static enum led_brightness lenovo_led_brightness_get_tpkbd(

static void lenovo_led_set_tpkbd(struct hid_device *hdev)

{

	struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);

	struct hid_report *report;



	report = hdev->report_enum[HID_OUTPUT_REPORT].report_id_hash[3];

	report->field[0]->value[0] = (data_pointer->led_state >> 0) & 1;

	report->field[0]->value[1] = (data_pointer->led_state >> 1) & 1;

	hid_hw_request(hdev, report, HID_REQ_SET_REPORT);

}



static enum led_brightness lenovo_led_brightness_get(

			struct led_classdev *led_cdev)

{

	struct device *dev = led_cdev->dev->parent;
@@ -654,13 +665,12 @@ static enum led_brightness lenovo_led_brightness_get_tpkbd( 
				: LED_OFF;

}



static void lenovo_led_brightness_set_tpkbd(struct led_classdev *led_cdev,

static void lenovo_led_brightness_set(struct led_classdev *led_cdev,

			enum led_brightness value)

{

	struct device *dev = led_cdev->dev->parent;

	struct hid_device *hdev = to_hid_device(dev);

	struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);

	struct hid_report *report;

	int led_nr = 0;



	if (led_cdev == &data_pointer->led_micmute)
@@ -671,20 +681,54 @@ static void lenovo_led_brightness_set_tpkbd(struct led_classdev *led_cdev, 
	else

		data_pointer->led_state |= 1 << led_nr;



	report = hdev->report_enum[HID_OUTPUT_REPORT].report_id_hash[3];

	report->field[0]->value[0] = (data_pointer->led_state >> 0) & 1;

	report->field[0]->value[1] = (data_pointer->led_state >> 1) & 1;

	hid_hw_request(hdev, report, HID_REQ_SET_REPORT);

	switch (hdev->product) {

	case USB_DEVICE_ID_LENOVO_TPKBD:

		lenovo_led_set_tpkbd(hdev);

		break;

	}

}



static int lenovo_register_leds(struct hid_device *hdev)

{

	struct lenovo_drvdata *data = hid_get_drvdata(hdev);

	size_t name_sz = strlen(dev_name(&hdev->dev)) + 16;

	char *name_mute, *name_micm;

	int ret;



	name_mute = devm_kzalloc(&hdev->dev, name_sz, GFP_KERNEL);

	name_micm = devm_kzalloc(&hdev->dev, name_sz, GFP_KERNEL);

	if (name_mute == NULL || name_micm == NULL) {

		hid_err(hdev, "Could not allocate memory for led data\n");

		return -ENOMEM;

	}

	snprintf(name_mute, name_sz, "%s:amber:mute", dev_name(&hdev->dev));

	snprintf(name_micm, name_sz, "%s:amber:micmute", dev_name(&hdev->dev));



	data->led_mute.name = name_mute;

	data->led_mute.brightness_get = lenovo_led_brightness_get;

	data->led_mute.brightness_set = lenovo_led_brightness_set;

	data->led_mute.dev = &hdev->dev;

	ret = led_classdev_register(&hdev->dev, &data->led_mute);

	if (ret < 0)

		return ret;



	data->led_micmute.name = name_micm;

	data->led_micmute.brightness_get = lenovo_led_brightness_get;

	data->led_micmute.brightness_set = lenovo_led_brightness_set;

	data->led_micmute.dev = &hdev->dev;

	ret = led_classdev_register(&hdev->dev, &data->led_micmute);

	if (ret < 0) {

		led_classdev_unregister(&data->led_mute);

		return ret;

	}



	return 0;

}



static int lenovo_probe_tpkbd(struct hid_device *hdev)

{

	struct device *dev = &hdev->dev;

	struct lenovo_drvdata *data_pointer;

	size_t name_sz = strlen(dev_name(dev)) + 16;

	char *name_mute, *name_micmute;

	int i;

	int ret;

	int i, ret;



	/*

	 * Only register extra settings against subdevice where input_mapping
@@ -720,37 +764,11 @@ static int lenovo_probe_tpkbd(struct hid_device *hdev) 
	data_pointer->sensitivity = 0xa0;

	data_pointer->press_speed = 0x38;



	name_mute = devm_kzalloc(&hdev->dev, name_sz, GFP_KERNEL);

	name_micmute = devm_kzalloc(&hdev->dev, name_sz, GFP_KERNEL);

	if (name_mute == NULL || name_micmute == NULL) {

		hid_err(hdev, "Could not allocate memory for led data\n");

		ret = -ENOMEM;

		goto err;

	}

	snprintf(name_mute, name_sz, "%s:amber:mute", dev_name(dev));

	snprintf(name_micmute, name_sz, "%s:amber:micmute", dev_name(dev));



	hid_set_drvdata(hdev, data_pointer);



	data_pointer->led_mute.name = name_mute;

	data_pointer->led_mute.brightness_get = lenovo_led_brightness_get_tpkbd;

	data_pointer->led_mute.brightness_set = lenovo_led_brightness_set_tpkbd;

	data_pointer->led_mute.dev = dev;

	ret = led_classdev_register(dev, &data_pointer->led_mute);

	if (ret < 0)

		goto err;



	data_pointer->led_micmute.name = name_micmute;

	data_pointer->led_micmute.brightness_get =

		lenovo_led_brightness_get_tpkbd;

	data_pointer->led_micmute.brightness_set =

		lenovo_led_brightness_set_tpkbd;

	data_pointer->led_micmute.dev = dev;

	ret = led_classdev_register(dev, &data_pointer->led_micmute);

	if (ret < 0) {

		led_classdev_unregister(&data_pointer->led_mute);

	ret = lenovo_register_leds(hdev);

	if (ret)

		goto err;

	}



	lenovo_features_set_tpkbd(hdev);

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