1 /* 2 * Asus Wireless Radio Control Driver 3 * 4 * Copyright (C) 2015-2016 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/kernel.h> 12 #include <linux/module.h> 13 #include <linux/init.h> 14 #include <linux/types.h> 15 #include <linux/acpi.h> 16 #include <linux/input.h> 17 #include <linux/pci_ids.h> 18 19 struct asus_wireless_data { 20 struct input_dev *idev; 21 }; 22 23 static void asus_wireless_notify(struct acpi_device *adev, u32 event) 24 { 25 struct asus_wireless_data *data = acpi_driver_data(adev); 26 27 dev_dbg(&adev->dev, "event=%#x\n", event); 28 if (event != 0x88) { 29 dev_notice(&adev->dev, "Unknown ASHS event: %#x\n", event); 30 return; 31 } 32 input_report_key(data->idev, KEY_RFKILL, 1); 33 input_report_key(data->idev, KEY_RFKILL, 0); 34 input_sync(data->idev); 35 } 36 37 static int asus_wireless_add(struct acpi_device *adev) 38 { 39 struct asus_wireless_data *data; 40 41 data = devm_kzalloc(&adev->dev, sizeof(*data), GFP_KERNEL); 42 if (!data) 43 return -ENOMEM; 44 adev->driver_data = data; 45 46 data->idev = devm_input_allocate_device(&adev->dev); 47 if (!data->idev) 48 return -ENOMEM; 49 data->idev->name = "Asus Wireless Radio Control"; 50 data->idev->phys = "asus-wireless/input0"; 51 data->idev->id.bustype = BUS_HOST; 52 data->idev->id.vendor = PCI_VENDOR_ID_ASUSTEK; 53 set_bit(EV_KEY, data->idev->evbit); 54 set_bit(KEY_RFKILL, data->idev->keybit); 55 return input_register_device(data->idev); 56 } 57 58 static int asus_wireless_remove(struct acpi_device *adev) 59 { 60 return 0; 61 } 62 63 static const struct acpi_device_id device_ids[] = { 64 {"ATK4001", 0}, 65 {"ATK4002", 0}, 66 {"", 0}, 67 }; 68 MODULE_DEVICE_TABLE(acpi, device_ids); 69 70 static struct acpi_driver asus_wireless_driver = { 71 .name = "Asus Wireless Radio Control Driver", 72 .class = "hotkey", 73 .ids = device_ids, 74 .ops = { 75 .add = asus_wireless_add, 76 .remove = asus_wireless_remove, 77 .notify = asus_wireless_notify, 78 }, 79 }; 80 module_acpi_driver(asus_wireless_driver); 81 82 MODULE_DESCRIPTION("Asus Wireless Radio Control Driver"); 83 MODULE_AUTHOR("João Paulo Rechi Vita <jprvita@gmail.com>"); 84 MODULE_LICENSE("GPL"); 85