HID: fix hid->hiddev initialization in hiddev_connect()
[linux-2.6.git] / drivers / hid / hid-microsoft.c
1 /*
2  *  HID driver for some microsoft "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/input.h>
21 #include <linux/hid.h>
22 #include <linux/module.h>
23
24 #include "hid-ids.h"
25
26 #define MS_HIDINPUT     0x01
27 #define MS_ERGONOMY     0x02
28 #define MS_PRESENTER    0x04
29 #define MS_RDESC        0x08
30 #define MS_NOGET        0x10
31
32 /*
33  * Microsoft Wireless Desktop Receiver (Model 1028) has several
34  * 'Usage Min/Max' where it ought to have 'Physical Min/Max'
35  */
36 static void ms_report_fixup(struct hid_device *hdev, __u8 *rdesc,
37                 unsigned int rsize)
38 {
39         unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
40
41         if ((quirks & MS_RDESC) && rsize == 571 && rdesc[284] == 0x19 &&
42                         rdesc[286] == 0x2a && rdesc[304] == 0x19 &&
43                         rdesc[306] == 0x29 && rdesc[352] == 0x1a &&
44                         rdesc[355] == 0x2a && rdesc[557] == 0x19 &&
45                         rdesc[559] == 0x29) {
46                 dev_info(&hdev->dev, "fixing up Microsoft Wireless Receiver "
47                                 "Model 1028 report descriptor\n");
48                 rdesc[284] = rdesc[304] = rdesc[557] = 0x35;
49                 rdesc[352] = 0x36;
50                 rdesc[286] = rdesc[355] = 0x46;
51                 rdesc[306] = rdesc[559] = 0x45;
52         }
53 }
54
55 #define ms_map_key_clear(c)     hid_map_usage_clear(hi, usage, bit, max, \
56                                         EV_KEY, (c))
57 static int ms_ergonomy_kb_quirk(struct hid_input *hi, struct hid_usage *usage,
58                 unsigned long **bit, int *max)
59 {
60         struct input_dev *input = hi->input;
61
62         switch (usage->hid & HID_USAGE) {
63         case 0xfd06: ms_map_key_clear(KEY_CHAT);        break;
64         case 0xfd07: ms_map_key_clear(KEY_PHONE);       break;
65         case 0xff05:
66                 set_bit(EV_REP, input->evbit);
67                 ms_map_key_clear(KEY_F13);
68                 set_bit(KEY_F14, input->keybit);
69                 set_bit(KEY_F15, input->keybit);
70                 set_bit(KEY_F16, input->keybit);
71                 set_bit(KEY_F17, input->keybit);
72                 set_bit(KEY_F18, input->keybit);
73         default:
74                 return 0;
75         }
76         return 1;
77 }
78
79 static int ms_presenter_8k_quirk(struct hid_input *hi, struct hid_usage *usage,
80                 unsigned long **bit, int *max)
81 {
82         set_bit(EV_REP, hi->input->evbit);
83         switch (usage->hid & HID_USAGE) {
84         case 0xfd08: ms_map_key_clear(KEY_FORWARD);     break;
85         case 0xfd09: ms_map_key_clear(KEY_BACK);        break;
86         case 0xfd0b: ms_map_key_clear(KEY_PLAYPAUSE);   break;
87         case 0xfd0e: ms_map_key_clear(KEY_CLOSE);       break;
88         case 0xfd0f: ms_map_key_clear(KEY_PLAY);        break;
89         default:
90                 return 0;
91         }
92         return 1;
93 }
94
95 static int ms_input_mapping(struct hid_device *hdev, struct hid_input *hi,
96                 struct hid_field *field, struct hid_usage *usage,
97                 unsigned long **bit, int *max)
98 {
99         unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
100
101         if ((usage->hid & HID_USAGE_PAGE) != HID_UP_MSVENDOR)
102                 return 0;
103
104         if (quirks & MS_ERGONOMY) {
105                 int ret = ms_ergonomy_kb_quirk(hi, usage, bit, max);
106                 if (ret)
107                         return ret;
108         }
109
110         if ((quirks & MS_PRESENTER) &&
111                         ms_presenter_8k_quirk(hi, usage, bit, max))
112                 return 1;
113
114         return 0;
115 }
116
117 static int ms_event(struct hid_device *hdev, struct hid_field *field,
118                 struct hid_usage *usage, __s32 value)
119 {
120         unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
121
122         if (!(hdev->claimed & HID_CLAIMED_INPUT) || !field->hidinput ||
123                         !usage->type)
124                 return 0;
125
126         /* Handling MS keyboards special buttons */
127         if (quirks & MS_ERGONOMY && usage->hid == (HID_UP_MSVENDOR | 0xff05)) {
128                 struct input_dev *input = field->hidinput->input;
129                 static unsigned int last_key = 0;
130                 unsigned int key = 0;
131                 switch (value) {
132                 case 0x01: key = KEY_F14; break;
133                 case 0x02: key = KEY_F15; break;
134                 case 0x04: key = KEY_F16; break;
135                 case 0x08: key = KEY_F17; break;
136                 case 0x10: key = KEY_F18; break;
137                 }
138                 if (key) {
139                         input_event(input, usage->type, key, 1);
140                         last_key = key;
141                 } else
142                         input_event(input, usage->type, last_key, 0);
143
144                 return 1;
145         }
146
147         return 0;
148 }
149
150 static int ms_probe(struct hid_device *hdev, const struct hid_device_id *id)
151 {
152         unsigned long quirks = id->driver_data;
153         int ret;
154
155         hid_set_drvdata(hdev, (void *)quirks);
156
157         if (quirks & MS_NOGET)
158                 hdev->quirks |= HID_QUIRK_NOGET;
159
160         ret = hid_parse(hdev);
161         if (ret) {
162                 dev_err(&hdev->dev, "parse failed\n");
163                 goto err_free;
164         }
165
166         ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT | ((quirks & MS_HIDINPUT) ?
167                                 HID_CONNECT_HIDINPUT_FORCE : 0));
168         if (ret) {
169                 dev_err(&hdev->dev, "hw start failed\n");
170                 goto err_free;
171         }
172
173         return 0;
174 err_free:
175         return ret;
176 }
177
178 static const struct hid_device_id ms_devices[] = {
179         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_SIDEWINDER_GV),
180                 .driver_data = MS_HIDINPUT },
181         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K),
182                 .driver_data = MS_ERGONOMY },
183         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_LK6K),
184                 .driver_data = MS_ERGONOMY | MS_RDESC },
185         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_USB),
186                 .driver_data = MS_PRESENTER },
187         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_WIRELESS_OPTICAL_DESKTOP_3_0),
188                 .driver_data = MS_NOGET },
189
190         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_BT),
191                 .driver_data = MS_PRESENTER },
192         { }
193 };
194 MODULE_DEVICE_TABLE(hid, ms_devices);
195
196 static struct hid_driver ms_driver = {
197         .name = "microsoft",
198         .id_table = ms_devices,
199         .report_fixup = ms_report_fixup,
200         .input_mapping = ms_input_mapping,
201         .event = ms_event,
202         .probe = ms_probe,
203 };
204
205 static int ms_init(void)
206 {
207         return hid_register_driver(&ms_driver);
208 }
209
210 static void ms_exit(void)
211 {
212         hid_unregister_driver(&ms_driver);
213 }
214
215 module_init(ms_init);
216 module_exit(ms_exit);
217 MODULE_LICENSE("GPL");
218
219 HID_COMPAT_LOAD_DRIVER(microsoft);