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) 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 static __u8 *sp_report_fixup(struct hid_device *hdev, __u8 *rdesc, 25 unsigned int *rsize) 26 { 27 if (*rsize >= 107 && rdesc[104] == 0x26 && rdesc[105] == 0x80 && 28 rdesc[106] == 0x03) { 29 hid_info(hdev, "fixing up Sunplus Wireless Desktop report descriptor\n"); 30 rdesc[105] = rdesc[110] = 0x03; 31 rdesc[106] = rdesc[111] = 0x21; 32 } 33 return rdesc; 34 } 35 36 #define sp_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, max, \ 37 EV_KEY, (c)) 38 static int sp_input_mapping(struct hid_device *hdev, struct hid_input *hi, 39 struct hid_field *field, struct hid_usage *usage, 40 unsigned long **bit, int *max) 41 { 42 if ((usage->hid & HID_USAGE_PAGE) != HID_UP_CONSUMER) 43 return 0; 44 45 switch (usage->hid & HID_USAGE) { 46 case 0x2003: sp_map_key_clear(KEY_ZOOMIN); break; 47 case 0x2103: sp_map_key_clear(KEY_ZOOMOUT); break; 48 default: 49 return 0; 50 } 51 return 1; 52 } 53 54 static const struct hid_device_id sp_devices[] = { 55 { HID_USB_DEVICE(USB_VENDOR_ID_SUNPLUS, USB_DEVICE_ID_SUNPLUS_WDESKTOP) }, 56 { } 57 }; 58 MODULE_DEVICE_TABLE(hid, sp_devices); 59 60 static struct hid_driver sp_driver = { 61 .name = "sunplus", 62 .id_table = sp_devices, 63 .report_fixup = sp_report_fixup, 64 .input_mapping = sp_input_mapping, 65 }; 66 67 static int __init sp_init(void) 68 { 69 return hid_register_driver(&sp_driver); 70 } 71 72 static void __exit sp_exit(void) 73 { 74 hid_unregister_driver(&sp_driver); 75 } 76 77 module_init(sp_init); 78 module_exit(sp_exit); 79 MODULE_LICENSE("GPL"); 80