2 * HID driver for some samsung "special" devices
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 * Copyright (c) 2010 Don Prince <dhprince.devel@yahoo.co.uk>
13 * This driver supports several HID devices:
15 * [0419:0001] Samsung IrDA remote controller (reports as Cypress USB Mouse).
16 * various hid report fixups for different variants.
18 * [0419:0600] Creative Desktop Wireless 6000 keyboard/mouse combo
19 * several key mappings used from the consumer usage page
20 * deviate from the USB HUT 1.12 standard.
25 * This program is free software; you can redistribute it and/or modify it
26 * under the terms of the GNU General Public License as published by the Free
27 * Software Foundation; either version 2 of the License, or (at your option)
31 #include <linux/device.h>
32 #include <linux/usb.h>
33 #include <linux/hid.h>
34 #include <linux/module.h>
39 * There are several variants for 0419:0001:
41 * 1. 184 byte report descriptor
42 * Vendor specific report #4 has a size of 48 bit,
43 * and therefore is not accepted when inspecting the descriptors.
44 * As a workaround we reinterpret the report as:
45 * Variable type, count 6, size 8 bit, log. maximum 255
46 * The burden to reconstruct the data is moved into user space.
48 * 2. 203 byte report descriptor
49 * Report #4 has an array field with logical range 0..18 instead of 1..15.
51 * 3. 135 byte report descriptor
52 * Report #4 has an array field with logical range 0..17 instead of 1..14.
54 * 4. 171 byte report descriptor
55 * Report #3 has an array field with logical range 0..1 instead of 1..3.
57 static inline void samsung_irda_dev_trace(struct hid_device *hdev,
60 dev_info(&hdev->dev, "fixing up Samsung IrDA %d byte report "
61 "descriptor\n", rsize);
64 static void samsung_irda_report_fixup(struct hid_device *hdev, __u8 *rdesc,
67 if (rsize == 184 && rdesc[175] == 0x25 && rdesc[176] == 0x40 &&
68 rdesc[177] == 0x75 && rdesc[178] == 0x30 &&
69 rdesc[179] == 0x95 && rdesc[180] == 0x01 &&
71 samsung_irda_dev_trace(hdev, 184);
77 if (rsize == 203 && rdesc[192] == 0x15 && rdesc[193] == 0x0 &&
78 rdesc[194] == 0x25 && rdesc[195] == 0x12) {
79 samsung_irda_dev_trace(hdev, 203);
83 if (rsize == 135 && rdesc[124] == 0x15 && rdesc[125] == 0x0 &&
84 rdesc[126] == 0x25 && rdesc[127] == 0x11) {
85 samsung_irda_dev_trace(hdev, 135);
89 if (rsize == 171 && rdesc[160] == 0x15 && rdesc[161] == 0x0 &&
90 rdesc[162] == 0x25 && rdesc[163] == 0x01) {
91 samsung_irda_dev_trace(hdev, 171);
97 #define samsung_kbd_mouse_map_key_clear(c) \
98 hid_map_usage_clear(hi, usage, bit, max, EV_KEY, (c))
100 static int samsung_kbd_mouse_input_mapping(struct hid_device *hdev,
101 struct hid_input *hi, struct hid_field *field, struct hid_usage *usage,
102 unsigned long **bit, int *max)
104 struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
105 unsigned short ifnum = intf->cur_altsetting->desc.bInterfaceNumber;
107 if (1 != ifnum || HID_UP_CONSUMER != (usage->hid & HID_USAGE_PAGE))
110 dbg_hid("samsung wireless keyboard/mouse input mapping event [0x%x]\n",
111 usage->hid & HID_USAGE);
113 switch (usage->hid & HID_USAGE) {
115 case 0x183: samsung_kbd_mouse_map_key_clear(KEY_MEDIA); break;
116 case 0x195: samsung_kbd_mouse_map_key_clear(KEY_EMAIL); break;
117 case 0x196: samsung_kbd_mouse_map_key_clear(KEY_CALC); break;
118 case 0x197: samsung_kbd_mouse_map_key_clear(KEY_COMPUTER); break;
119 case 0x22b: samsung_kbd_mouse_map_key_clear(KEY_SEARCH); break;
120 case 0x22c: samsung_kbd_mouse_map_key_clear(KEY_WWW); break;
121 case 0x22d: samsung_kbd_mouse_map_key_clear(KEY_BACK); break;
122 case 0x22e: samsung_kbd_mouse_map_key_clear(KEY_FORWARD); break;
123 case 0x22f: samsung_kbd_mouse_map_key_clear(KEY_FAVORITES); break;
124 case 0x230: samsung_kbd_mouse_map_key_clear(KEY_REFRESH); break;
125 case 0x231: samsung_kbd_mouse_map_key_clear(KEY_STOP); break;
133 static void samsung_report_fixup(struct hid_device *hdev, __u8 *rdesc,
136 if (USB_DEVICE_ID_SAMSUNG_IR_REMOTE == hdev->product)
137 samsung_irda_report_fixup(hdev, rdesc, rsize);
140 static int samsung_input_mapping(struct hid_device *hdev, struct hid_input *hi,
141 struct hid_field *field, struct hid_usage *usage,
142 unsigned long **bit, int *max)
146 if (USB_DEVICE_ID_SAMSUNG_WIRELESS_KBD_MOUSE == hdev->product)
147 ret = samsung_kbd_mouse_input_mapping(hdev,
148 hi, field, usage, bit, max);
153 static int samsung_probe(struct hid_device *hdev,
154 const struct hid_device_id *id)
157 unsigned int cmask = HID_CONNECT_DEFAULT;
159 ret = hid_parse(hdev);
161 dev_err(&hdev->dev, "parse failed\n");
165 if (USB_DEVICE_ID_SAMSUNG_IR_REMOTE == hdev->product) {
166 if (hdev->rsize == 184) {
167 /* disable hidinput, force hiddev */
168 cmask = (cmask & ~HID_CONNECT_HIDINPUT) |
169 HID_CONNECT_HIDDEV_FORCE;
173 ret = hid_hw_start(hdev, cmask);
175 dev_err(&hdev->dev, "hw start failed\n");
184 static const struct hid_device_id samsung_devices[] = {
185 { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_IR_REMOTE) },
186 { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_WIRELESS_KBD_MOUSE) },
189 MODULE_DEVICE_TABLE(hid, samsung_devices);
191 static struct hid_driver samsung_driver = {
193 .id_table = samsung_devices,
194 .report_fixup = samsung_report_fixup,
195 .input_mapping = samsung_input_mapping,
196 .probe = samsung_probe,
199 static int __init samsung_init(void)
201 return hid_register_driver(&samsung_driver);
204 static void __exit samsung_exit(void)
206 hid_unregister_driver(&samsung_driver);
209 module_init(samsung_init);
210 module_exit(samsung_exit);
211 MODULE_LICENSE("GPL");