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HID: chicony: Add Wireless Radio Control feature for Chicony devices

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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 <jhp@endlessos.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This commit is contained in:
Jian-Hong Pan 2020-12-23 13:55:41 +08:00 committed by Jiri Kosina
parent de925e2fbb
commit 859b510bb7
2 changed files with 56 additions and 0 deletions
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55
drivers/hid/hid-chicony.c
View File

@ -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);

1
drivers/hid/hid-ids.h
View File

@ -270,6 +270,7 @@
#define USB_DEVICE_ID_CHICONY_PIXART_USB_OPTICAL_MOUSE 0x1053
#define USB_DEVICE_ID_CHICONY_PIXART_USB_OPTICAL_MOUSE2 0x0939
#define USB_DEVICE_ID_CHICONY_WIRELESS2 0x1123
#define USB_DEVICE_ID_CHICONY_WIRELESS3 0x1236
#define USB_DEVICE_ID_ASUS_AK1D 0x1125
#define USB_DEVICE_ID_CHICONY_TOSHIBA_WT10A 0x1408
#define USB_DEVICE_ID_CHICONY_ACER_SWITCH12 0x1421