1 /* 2 * HID driver for some sunplus "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) 2007 Paul Walmsley 9 * Copyright (c) 2008 Jiri Slaby 10 */ 11 12 /* 13 * This program is free software; you can redistribute it and/or modify it 14 * under the terms of the GNU General Public License as published by the Free 15 * Software Foundation; either version 2 of the License, or (at your option) 16 * any later version. 17 */ 18 19 #include <linux/device.h> 20 #include <linux/hid.h> 21 #include <linux/module.h> 22 23 #include "hid-ids.h" 24 25 static __u8 *sp_report_fixup(struct hid_device *hdev, __u8 *rdesc, 26 unsigned int *rsize) 27 { 28 if (*rsize >= 107 && rdesc[104] == 0x26 && rdesc[105] == 0x80 && 29 rdesc[106] == 0x03) { 30 hid_info(hdev, "fixing up Sunplus Wireless Desktop report descriptor\n"); 31 rdesc[105] = rdesc[110] = 0x03; 32 rdesc[106] = rdesc[111] = 0x21; 33 } 34 return rdesc; 35 } 36 37 #define sp_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, max, \ 38 EV_KEY, (c)) 39 static int sp_input_mapping(struct hid_device *hdev, struct hid_input *hi, 40 struct hid_field *field, struct hid_usage *usage, 41 unsigned long **bit, int *max) 42 { 43 if ((usage->hid & HID_USAGE_PAGE) != HID_UP_CONSUMER) 44 return 0; 45 46 switch (usage->hid & HID_USAGE) { 47 case 0x2003: sp_map_key_clear(KEY_ZOOMIN); break; 48 case 0x2103: sp_map_key_clear(KEY_ZOOMOUT); break; 49 default: 50 return 0; 51 } 52 return 1; 53 } 54 55 static const struct hid_device_id sp_devices[] = { 56 { HID_USB_DEVICE(USB_VENDOR_ID_SUNPLUS, USB_DEVICE_ID_SUNPLUS_WDESKTOP) }, 57 { } 58 }; 59 MODULE_DEVICE_TABLE(hid, sp_devices); 60 61 static struct hid_driver sp_driver = { 62 .name = "sunplus", 63 .id_table = sp_devices, 64 .report_fixup = sp_report_fixup, 65 .input_mapping = sp_input_mapping, 66 }; 67 68 static int __init sp_init(void) 69 { 70 return hid_register_driver(&sp_driver); 71 } 72 73 static void __exit sp_exit(void) 74 { 75 hid_unregister_driver(&sp_driver); 76 } 77 78 module_init(sp_init); 79 module_exit(sp_exit); 80 MODULE_LICENSE("GPL"); 81