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 18 static const struct acpi_device_id acer_wireless_acpi_ids[] = { 19 {"10251229", 0}, 20 {"", 0}, 21 }; 22 MODULE_DEVICE_TABLE(acpi, acer_wireless_acpi_ids); 23 24 static 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 38 static 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 58 static 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 }; 67 module_acpi_driver(acer_wireless_driver); 68 69 MODULE_DESCRIPTION("Acer Wireless Radio Control Driver"); 70 MODULE_AUTHOR("Chris Chiu <chiu@gmail.com>"); 71 MODULE_LICENSE("GPL v2"); 72