LXR linux/drivers/platform/x86/acer-wireless.c

   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
  15static const struct acpi_device_id acer_wireless_acpi_ids[] = {
  16        {"10251229", 0},
  17        {"", 0},
  18};
  19MODULE_DEVICE_TABLE(acpi, acer_wireless_acpi_ids);
  20
  21static 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
  35static 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
  55static 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};
  64module_acpi_driver(acer_wireless_driver);
  65
  66MODULE_DESCRIPTION("Acer Wireless Radio Control Driver");
  67MODULE_AUTHOR("Chris Chiu <chiu@gmail.com>");
  68MODULE_LICENSE("GPL v2");
  69