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HID: lenovo: Add ThinkPad 10 Ultrabook Keyboard fn_lock support
Add support for setting the Fn lock value of the ThinkPad 10 Ultrabook Keyboard through sysfs, re-using the fn_lock sysfs attribute read/write helpers from the existing ThinkPad Compact Keyboard with TrackPoint support. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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@ -29,6 +29,7 @@
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#include <linux/hid.h>
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#include <linux/input.h>
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#include <linux/leds.h>
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#include <linux/workqueue.h>
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#include "hid-ids.h"
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@ -38,6 +39,8 @@ struct lenovo_drvdata {
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struct mutex led_report_mutex;
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struct led_classdev led_mute;
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struct led_classdev led_micmute;
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struct work_struct fn_lock_sync_work;
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struct hid_device *hdev;
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int press_to_select;
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int dragging;
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int release_to_select;
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@ -78,6 +81,15 @@ static void lenovo_led_set_tp10ubkbd(struct hid_device *hdev, u8 led_code,
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mutex_unlock(&data->led_report_mutex);
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}
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static void lenovo_tp10ubkbd_sync_fn_lock(struct work_struct *work)
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{
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struct lenovo_drvdata *data =
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container_of(work, struct lenovo_drvdata, fn_lock_sync_work);
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lenovo_led_set_tp10ubkbd(data->hdev, TP10UBKBD_FN_LOCK_LED,
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data->fn_lock);
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}
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static const __u8 lenovo_pro_dock_need_fixup_collection[] = {
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0x05, 0x88, /* Usage Page (Vendor Usage Page 0x88) */
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0x09, 0x01, /* Usage (Vendor Usage 0x01) */
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@ -344,6 +356,9 @@ static ssize_t attr_fn_lock_store(struct device *dev,
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case USB_DEVICE_ID_LENOVO_CBTKBD:
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lenovo_features_set_cptkbd(hdev);
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break;
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case USB_DEVICE_ID_LENOVO_TP10UBKBD:
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lenovo_led_set_tp10ubkbd(hdev, TP10UBKBD_FN_LOCK_LED, value);
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break;
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}
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return count;
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@ -420,6 +435,24 @@ static int lenovo_raw_event(struct hid_device *hdev,
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return 0;
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}
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static int lenovo_event_tp10ubkbd(struct hid_device *hdev,
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struct hid_field *field, struct hid_usage *usage, __s32 value)
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{
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struct lenovo_drvdata *data = hid_get_drvdata(hdev);
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if (usage->type == EV_KEY && usage->code == KEY_FN_ESC && value == 1) {
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/*
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* The user has toggled the Fn-lock state. Toggle our own
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* cached value of it and sync our value to the keyboard to
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* ensure things are in sync (the sycning should be a no-op).
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*/
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data->fn_lock = !data->fn_lock;
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schedule_work(&data->fn_lock_sync_work);
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}
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return 0;
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}
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static int lenovo_event_cptkbd(struct hid_device *hdev,
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struct hid_field *field, struct hid_usage *usage, __s32 value)
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{
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@ -462,6 +495,8 @@ static int lenovo_event(struct hid_device *hdev, struct hid_field *field,
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case USB_DEVICE_ID_LENOVO_CUSBKBD:
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case USB_DEVICE_ID_LENOVO_CBTKBD:
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return lenovo_event_cptkbd(hdev, field, usage, value);
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case USB_DEVICE_ID_LENOVO_TP10UBKBD:
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return lenovo_event_tp10ubkbd(hdev, field, usage, value);
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default:
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return 0;
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}
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@ -899,9 +934,19 @@ static int lenovo_probe_cptkbd(struct hid_device *hdev)
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return 0;
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}
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static struct attribute *lenovo_attributes_tp10ubkbd[] = {
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&dev_attr_fn_lock.attr,
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NULL
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};
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static const struct attribute_group lenovo_attr_group_tp10ubkbd = {
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.attrs = lenovo_attributes_tp10ubkbd,
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};
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static int lenovo_probe_tp10ubkbd(struct hid_device *hdev)
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{
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struct lenovo_drvdata *data;
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int ret;
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/* All the custom action happens on the USBMOUSE device for USB */
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if (hdev->type != HID_TYPE_USBMOUSE)
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@ -912,10 +957,32 @@ static int lenovo_probe_tp10ubkbd(struct hid_device *hdev)
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return -ENOMEM;
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mutex_init(&data->led_report_mutex);
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INIT_WORK(&data->fn_lock_sync_work, lenovo_tp10ubkbd_sync_fn_lock);
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data->hdev = hdev;
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hid_set_drvdata(hdev, data);
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return lenovo_register_leds(hdev);
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/*
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* The Thinkpad 10 ultrabook USB kbd dock's Fn-lock defaults to on.
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* We cannot read the state, only set it, so we force it to on here
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* (which should be a no-op) to make sure that our state matches the
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* keyboard's FN-lock state. This is the same as what Windows does.
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*/
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data->fn_lock = true;
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lenovo_led_set_tp10ubkbd(hdev, TP10UBKBD_FN_LOCK_LED, data->fn_lock);
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ret = sysfs_create_group(&hdev->dev.kobj, &lenovo_attr_group_tp10ubkbd);
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if (ret)
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return ret;
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ret = lenovo_register_leds(hdev);
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if (ret)
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goto err;
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return 0;
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err:
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sysfs_remove_group(&hdev->dev.kobj, &lenovo_attr_group_tp10ubkbd);
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return ret;
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}
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static int lenovo_probe(struct hid_device *hdev,
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@ -993,6 +1060,9 @@ static void lenovo_remove_tp10ubkbd(struct hid_device *hdev)
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led_classdev_unregister(&data->led_micmute);
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led_classdev_unregister(&data->led_mute);
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sysfs_remove_group(&hdev->dev.kobj, &lenovo_attr_group_tp10ubkbd);
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cancel_work_sync(&data->fn_lock_sync_work);
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}
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static void lenovo_remove(struct hid_device *hdev)
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