1/*
 2 * Acer Wireless Radio Control Driver
 3 *
 4 * Copyright (C) 2017 Endless Mobile, Inc.
 5 *
 6 * This program is free software; you can redistribute it and/or modify
 7 * it under the terms of the GNU General Public License version 2 as
 8 * published by the Free Software Foundation.
 9 */
10
11#include <linux/acpi.h>
12#include <linux/input.h>
13#include <linux/kernel.h>
14#include <linux/module.h>
15#include <linux/pci_ids.h>
16#include <linux/types.h>
17
18static const struct acpi_device_id acer_wireless_acpi_ids[] = {
19	{"10251229", 0},
20	{"", 0},
21};
22MODULE_DEVICE_TABLE(acpi, acer_wireless_acpi_ids);
23
24static void acer_wireless_notify(struct acpi_device *adev, u32 event)
25{
26	struct input_dev *idev = acpi_driver_data(adev);
27
28	dev_dbg(&adev->dev, "event=%#x\n", event);
29	if (event != 0x80) {
30		dev_notice(&adev->dev, "Unknown SMKB event: %#x\n", event);
31		return;
32	}
33	input_report_key(idev, KEY_RFKILL, 1);
34	input_report_key(idev, KEY_RFKILL, 0);
35	input_sync(idev);
36}
37
38static int acer_wireless_add(struct acpi_device *adev)
39{
40	struct input_dev *idev;
41
42	idev = devm_input_allocate_device(&adev->dev);
43	if (!idev)
44		return -ENOMEM;
45
46	adev->driver_data = idev;
47	idev->name = "Acer Wireless Radio Control";
48	idev->phys = "acer-wireless/input0";
49	idev->id.bustype = BUS_HOST;
50	idev->id.vendor = PCI_VENDOR_ID_AI;
51	idev->id.product = 0x1229;
52	set_bit(EV_KEY, idev->evbit);
53	set_bit(KEY_RFKILL, idev->keybit);
54
55	return input_register_device(idev);
56}
57
58static struct acpi_driver acer_wireless_driver = {
59	.name = "Acer Wireless Radio Control Driver",
60	.class = "hotkey",
61	.ids = acer_wireless_acpi_ids,
62	.ops = {
63		.add = acer_wireless_add,
64		.notify = acer_wireless_notify,
65	},
66};
67module_acpi_driver(acer_wireless_driver);
68
69MODULE_DESCRIPTION("Acer Wireless Radio Control Driver");
70MODULE_AUTHOR("Chris Chiu <chiu@gmail.com>");
71MODULE_LICENSE("GPL v2");