From 859b510bb7fa5797cfaf7bf5729336bf0e94dd2e Mon Sep 17 00:00:00 2001 From: Jian-Hong Pan Date: Wed, 23 Dec 2020 13:55:41 +0800 Subject: HID: chicony: Add Wireless Radio Control feature for Chicony devices Some Chicony's keyboards support airplane mode hotkey (Fn+F2) with "Wireless Radio Control" feature. For example, the wireless keyboard [04f2:1236] shipped with ASUS all-in-one desktop. After consulting Chicony for this hotkey, learned the device will send with 0x11 as the report ID and 0x1 as the value when the key is pressed down. This patch maps the event as KEY_RFKILL. Signed-off-by: Jian-Hong Pan Signed-off-by: Jiri Kosina --- drivers/hid/hid-chicony.c | 55 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 55 insertions(+) (limited to 'drivers/hid/hid-chicony.c') diff --git a/drivers/hid/hid-chicony.c b/drivers/hid/hid-chicony.c index 3f0ed6a95223..ca556d39da2a 100644 --- a/drivers/hid/hid-chicony.c +++ b/drivers/hid/hid-chicony.c @@ -21,6 +21,39 @@ #include "hid-ids.h" +#define CH_WIRELESS_CTL_REPORT_ID 0x11 + +static int ch_report_wireless(struct hid_report *report, u8 *data, int size) +{ + struct hid_device *hdev = report->device; + struct input_dev *input; + + if (report->id != CH_WIRELESS_CTL_REPORT_ID || report->maxfield != 1) + return 0; + + input = report->field[0]->hidinput->input; + if (!input) { + hid_warn(hdev, "can't find wireless radio control's input"); + return 0; + } + + input_report_key(input, KEY_RFKILL, 1); + input_sync(input); + input_report_key(input, KEY_RFKILL, 0); + input_sync(input); + + return 1; +} + +static int ch_raw_event(struct hid_device *hdev, + struct hid_report *report, u8 *data, int size) +{ + if (report->application == HID_GD_WIRELESS_RADIO_CTLS) + return ch_report_wireless(report, data, size); + + return 0; +} + #define ch_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, max, \ EV_KEY, (c)) static int ch_input_mapping(struct hid_device *hdev, struct hid_input *hi, @@ -77,10 +110,30 @@ static __u8 *ch_switch12_report_fixup(struct hid_device *hdev, __u8 *rdesc, return rdesc; } +static int ch_probe(struct hid_device *hdev, const struct hid_device_id *id) +{ + int ret; + + hdev->quirks |= HID_QUIRK_INPUT_PER_APP; + ret = hid_parse(hdev); + if (ret) { + hid_err(hdev, "Chicony hid parse failed: %d\n", ret); + return ret; + } + + ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT); + if (ret) { + hid_err(hdev, "Chicony hw start failed: %d\n", ret); + return ret; + } + + return 0; +} static const struct hid_device_id ch_devices[] = { { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_TACTICAL_PAD) }, { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS2) }, + { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS3) }, { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_ACER_SWITCH12) }, { } }; @@ -91,6 +144,8 @@ static struct hid_driver ch_driver = { .id_table = ch_devices, .report_fixup = ch_switch12_report_fixup, .input_mapping = ch_input_mapping, + .probe = ch_probe, + .raw_event = ch_raw_event, }; module_hid_driver(ch_driver); -- cgit v1.2.3