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 hid_info(hdev, "fixing up Samsung IrDA %d byte report descriptor\n",
64 static __u8 *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);
98 #define samsung_kbd_mouse_map_key_clear(c) \
99 hid_map_usage_clear(hi, usage, bit, max, EV_KEY, (c))
101 static int samsung_kbd_mouse_input_mapping(struct hid_device *hdev,
102 struct hid_input *hi, struct hid_field *field, struct hid_usage *usage,
103 unsigned long **bit, int *max)
105 struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
106 unsigned short ifnum = intf->cur_altsetting->desc.bInterfaceNumber;
108 if (1 != ifnum || HID_UP_CONSUMER != (usage->hid & HID_USAGE_PAGE))
111 dbg_hid("samsung wireless keyboard/mouse input mapping event [0x%x]\n",
112 usage->hid & HID_USAGE);
114 switch (usage->hid & HID_USAGE) {
116 case 0x183: samsung_kbd_mouse_map_key_clear(KEY_MEDIA); break;
117 case 0x195: samsung_kbd_mouse_map_key_clear(KEY_EMAIL); break;
118 case 0x196: samsung_kbd_mouse_map_key_clear(KEY_CALC); break;
119 case 0x197: samsung_kbd_mouse_map_key_clear(KEY_COMPUTER); break;
120 case 0x22b: samsung_kbd_mouse_map_key_clear(KEY_SEARCH); break;
121 case 0x22c: samsung_kbd_mouse_map_key_clear(KEY_WWW); break;
122 case 0x22d: samsung_kbd_mouse_map_key_clear(KEY_BACK); break;
123 case 0x22e: samsung_kbd_mouse_map_key_clear(KEY_FORWARD); break;
124 case 0x22f: samsung_kbd_mouse_map_key_clear(KEY_FAVORITES); break;
125 case 0x230: samsung_kbd_mouse_map_key_clear(KEY_REFRESH); break;
126 case 0x231: samsung_kbd_mouse_map_key_clear(KEY_STOP); break;
134 static int samsung_kbd_input_mapping(struct hid_device *hdev,
135 struct hid_input *hi, struct hid_field *field, struct hid_usage *usage,
136 unsigned long **bit, int *max)
138 if (!(HID_UP_CONSUMER == (usage->hid & HID_USAGE_PAGE) ||
139 HID_UP_KEYBOARD == (usage->hid & HID_USAGE_PAGE)))
142 dbg_hid("samsung wireless keyboard input mapping event [0x%x]\n",
143 usage->hid & HID_USAGE);
145 if (HID_UP_KEYBOARD == (usage->hid & HID_USAGE_PAGE)) {
146 switch (usage->hid & HID_USAGE) {
147 set_bit(EV_REP, hi->input->evbit);
148 /* Only for UK keyboard */
150 case 0x32: samsung_kbd_mouse_map_key_clear(KEY_BACKSLASH); break;
151 case 0x29: samsung_kbd_mouse_map_key_clear(KEY_BACK); break;
157 if (HID_UP_CONSUMER == (usage->hid & HID_USAGE_PAGE)) {
158 switch (usage->hid & HID_USAGE) {
161 case 0x040: samsung_kbd_mouse_map_key_clear(KEY_PHONE); break;
162 case 0x18a: samsung_kbd_mouse_map_key_clear(KEY_MAIL); break;
163 case 0x196: samsung_kbd_mouse_map_key_clear(KEY_WWW); break;
164 case 0x19e: samsung_kbd_mouse_map_key_clear(KEY_SCREENLOCK); break;
165 case 0x221: samsung_kbd_mouse_map_key_clear(KEY_SEARCH); break;
166 case 0x223: samsung_kbd_mouse_map_key_clear(KEY_MENU); break;
168 case 0x301: samsung_kbd_mouse_map_key_clear(KEY_F14); break;
170 case 0x302: samsung_kbd_mouse_map_key_clear(KEY_DASHBOARD); break;
172 case 0x305: samsung_kbd_mouse_map_key_clear(KEY_PROG2); break;
174 case 0x306: samsung_kbd_mouse_map_key_clear(KEY_F13); break;
176 case 0x307: samsung_kbd_mouse_map_key_clear(KEY_PROG1); break;
178 case 0x308: samsung_kbd_mouse_map_key_clear(KEY_HANGEUL); break;
179 case 0x30a: samsung_kbd_mouse_map_key_clear(KEY_BRIGHTNESSDOWN); break;
180 case 0x30b: samsung_kbd_mouse_map_key_clear(KEY_BRIGHTNESSUP); break;
189 static __u8 *samsung_report_fixup(struct hid_device *hdev, __u8 *rdesc,
192 if (USB_DEVICE_ID_SAMSUNG_IR_REMOTE == hdev->product)
193 rdesc = samsung_irda_report_fixup(hdev, rdesc, rsize);
197 static int samsung_input_mapping(struct hid_device *hdev, struct hid_input *hi,
198 struct hid_field *field, struct hid_usage *usage,
199 unsigned long **bit, int *max)
203 if (USB_DEVICE_ID_SAMSUNG_WIRELESS_KBD_MOUSE == hdev->product)
204 ret = samsung_kbd_mouse_input_mapping(hdev,
205 hi, field, usage, bit, max);
206 else if (USB_DEVICE_ID_SAMSUNG_WIRELESS_KBD == hdev->product)
207 ret = samsung_kbd_input_mapping(hdev,
208 hi, field, usage, bit, max);
213 static int samsung_probe(struct hid_device *hdev,
214 const struct hid_device_id *id)
217 unsigned int cmask = HID_CONNECT_DEFAULT;
219 ret = hid_parse(hdev);
221 hid_err(hdev, "parse failed\n");
225 if (USB_DEVICE_ID_SAMSUNG_IR_REMOTE == hdev->product) {
226 if (hdev->rsize == 184) {
227 /* disable hidinput, force hiddev */
228 cmask = (cmask & ~HID_CONNECT_HIDINPUT) |
229 HID_CONNECT_HIDDEV_FORCE;
233 ret = hid_hw_start(hdev, cmask);
235 hid_err(hdev, "hw start failed\n");
244 static const struct hid_device_id samsung_devices[] = {
245 { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_IR_REMOTE) },
246 { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_WIRELESS_KBD_MOUSE) },
247 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SAMSUNG_ELECTRONICS, USB_DEVICE_ID_SAMSUNG_WIRELESS_KBD) },
250 MODULE_DEVICE_TABLE(hid, samsung_devices);
252 static struct hid_driver samsung_driver = {
254 .id_table = samsung_devices,
255 .report_fixup = samsung_report_fixup,
256 .input_mapping = samsung_input_mapping,
257 .probe = samsung_probe,
260 static int __init samsung_init(void)
262 return hid_register_driver(&samsung_driver);
265 static void __exit samsung_exit(void)
267 hid_unregister_driver(&samsung_driver);
270 module_init(samsung_init);
271 module_exit(samsung_exit);
272 MODULE_LICENSE("GPL");