1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * Acer Wireless Radio Control Driver
4 *
5 * Copyright (C) 2017 Endless Mobile, Inc.
6 */
7
8 #include <linux/acpi.h>
9 #include <linux/input.h>
10 #include <linux/kernel.h>
11 #include <linux/module.h>
12 #include <linux/pci_ids.h>
13 #include <linux/types.h>
14
15 static const struct acpi_device_id acer_wireless_acpi_ids[] = {
16 {"10251229", 0},
17 {"", 0},
18 };
19 MODULE_DEVICE_TABLE(acpi, acer_wireless_acpi_ids);
20
acer_wireless_notify(struct acpi_device * adev,u32 event)21 static void acer_wireless_notify(struct acpi_device *adev, u32 event)
22 {
23 struct input_dev *idev = acpi_driver_data(adev);
24
25 dev_dbg(&adev->dev, "event=%#x\n", event);
26 if (event != 0x80) {
27 dev_notice(&adev->dev, "Unknown SMKB event: %#x\n", event);
28 return;
29 }
30 input_report_key(idev, KEY_RFKILL, 1);
31 input_report_key(idev, KEY_RFKILL, 0);
32 input_sync(idev);
33 }
34
acer_wireless_add(struct acpi_device * adev)35 static int acer_wireless_add(struct acpi_device *adev)
36 {
37 struct input_dev *idev;
38
39 idev = devm_input_allocate_device(&adev->dev);
40 if (!idev)
41 return -ENOMEM;
42
43 adev->driver_data = idev;
44 idev->name = "Acer Wireless Radio Control";
45 idev->phys = "acer-wireless/input0";
46 idev->id.bustype = BUS_HOST;
47 idev->id.vendor = PCI_VENDOR_ID_AI;
48 idev->id.product = 0x1229;
49 set_bit(EV_KEY, idev->evbit);
50 set_bit(KEY_RFKILL, idev->keybit);
51
52 return input_register_device(idev);
53 }
54
55 static struct acpi_driver acer_wireless_driver = {
56 .name = "Acer Wireless Radio Control Driver",
57 .class = "hotkey",
58 .ids = acer_wireless_acpi_ids,
59 .ops = {
60 .add = acer_wireless_add,
61 .notify = acer_wireless_notify,
62 },
63 };
64 module_acpi_driver(acer_wireless_driver);
65
66 MODULE_DESCRIPTION("Acer Wireless Radio Control Driver");
67 MODULE_AUTHOR("Chris Chiu <chiu@gmail.com>");
68 MODULE_LICENSE("GPL v2");
69