1 /* 2 * HID driver for some belkin "special" devices 3 * 4 * Copyright (c) 1999 Andreas Gal 5 * Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz> 6 * Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc 7 * Copyright (c) 2006-2007 Jiri Kosina 8 * Copyright (c) 2008 Jiri Slaby 9 */ 10 11 /* 12 * This program is free software; you can redistribute it and/or modify it 13 * under the terms of the GNU General Public License as published by the Free 14 * Software Foundation; either version 2 of the License, or (at your option) 15 * any later version. 16 */ 17 18 #include <linux/device.h> 19 #include <linux/hid.h> 20 #include <linux/module.h> 21 22 #include "hid-ids.h" 23 24 #define BELKIN_HIDDEV 0x01 25 #define BELKIN_WKBD 0x02 26 27 #define belkin_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, max, \ 28 EV_KEY, (c)) 29 static int belkin_input_mapping(struct hid_device *hdev, struct hid_input *hi, 30 struct hid_field *field, struct hid_usage *usage, 31 unsigned long **bit, int *max) 32 { 33 unsigned long quirks = (unsigned long)hid_get_drvdata(hdev); 34 35 if ((usage->hid & HID_USAGE_PAGE) != HID_UP_CONSUMER || 36 !(quirks & BELKIN_WKBD)) 37 return 0; 38 39 switch (usage->hid & HID_USAGE) { 40 case 0x03a: belkin_map_key_clear(KEY_SOUND); break; 41 case 0x03b: belkin_map_key_clear(KEY_CAMERA); break; 42 case 0x03c: belkin_map_key_clear(KEY_DOCUMENTS); break; 43 default: 44 return 0; 45 } 46 return 1; 47 } 48 49 static int belkin_probe(struct hid_device *hdev, const struct hid_device_id *id) 50 { 51 unsigned long quirks = id->driver_data; 52 int ret; 53 54 hid_set_drvdata(hdev, (void *)quirks); 55 56 ret = hid_parse(hdev); 57 if (ret) { 58 hid_err(hdev, "parse failed\n"); 59 goto err_free; 60 } 61 62 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT | 63 ((quirks & BELKIN_HIDDEV) ? HID_CONNECT_HIDDEV_FORCE : 0)); 64 if (ret) { 65 hid_err(hdev, "hw start failed\n"); 66 goto err_free; 67 } 68 69 return 0; 70 err_free: 71 return ret; 72 } 73 74 static const struct hid_device_id belkin_devices[] = { 75 { HID_USB_DEVICE(USB_VENDOR_ID_BELKIN, USB_DEVICE_ID_FLIP_KVM), 76 .driver_data = BELKIN_HIDDEV }, 77 { HID_USB_DEVICE(USB_VENDOR_ID_LABTEC, USB_DEVICE_ID_LABTEC_WIRELESS_KEYBOARD), 78 .driver_data = BELKIN_WKBD }, 79 { } 80 }; 81 MODULE_DEVICE_TABLE(hid, belkin_devices); 82 83 static struct hid_driver belkin_driver = { 84 .name = "belkin", 85 .id_table = belkin_devices, 86 .input_mapping = belkin_input_mapping, 87 .probe = belkin_probe, 88 }; 89 module_hid_driver(belkin_driver); 90 91 MODULE_LICENSE("GPL"); 92