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