source: src/linux/universal/linux-4.9/drivers/hid/hid-microsoft.c @ 31859

Last change on this file since 31859 was 31859, checked in by brainslayer, 10 days ago

kernel update

File size: 8.8 KB
Line 
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) 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/input.h>
20#include <linux/hid.h>
21#include <linux/module.h>
22
23#include "hid-ids.h"
24
25#define MS_HIDINPUT             0x01
26#define MS_ERGONOMY             0x02
27#define MS_PRESENTER            0x04
28#define MS_RDESC                0x08
29#define MS_NOGET                0x10
30#define MS_DUPLICATE_USAGES     0x20
31
32static __u8 *ms_report_fixup(struct hid_device *hdev, __u8 *rdesc,
33                unsigned int *rsize)
34{
35        unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
36
37        /*
38         * Microsoft Wireless Desktop Receiver (Model 1028) has
39         * 'Usage Min/Max' where it ought to have 'Physical Min/Max'
40         */
41        if ((quirks & MS_RDESC) && *rsize == 571 && rdesc[557] == 0x19 &&
42                        rdesc[559] == 0x29) {
43                hid_info(hdev, "fixing up Microsoft Wireless Receiver Model 1028 report descriptor\n");
44                rdesc[557] = 0x35;
45                rdesc[559] = 0x45;
46        }
47        return rdesc;
48}
49
50#define ms_map_key_clear(c)     hid_map_usage_clear(hi, usage, bit, max, \
51                                        EV_KEY, (c))
52static 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        if ((usage->hid & HID_USAGE_PAGE) == HID_UP_CONSUMER) {
58                switch (usage->hid & HID_USAGE) {
59                /*
60                 * Microsoft uses these 2 reserved usage ids for 2 keys on
61                 * the MS office kb labelled "Office Home" and "Task Pane".
62                 */
63                case 0x29d:
64                        ms_map_key_clear(KEY_PROG1);
65                        return 1;
66                case 0x29e:
67                        ms_map_key_clear(KEY_PROG2);
68                        return 1;
69                }
70                return 0;
71        }
72
73        if ((usage->hid & HID_USAGE_PAGE) != HID_UP_MSVENDOR)
74                return 0;
75
76        switch (usage->hid & HID_USAGE) {
77        case 0xfd06: ms_map_key_clear(KEY_CHAT);        break;
78        case 0xfd07: ms_map_key_clear(KEY_PHONE);       break;
79        case 0xff00:
80                /* Special keypad keys */
81                ms_map_key_clear(KEY_KPEQUAL);
82                set_bit(KEY_KPLEFTPAREN, input->keybit);
83                set_bit(KEY_KPRIGHTPAREN, input->keybit);
84                break;
85        case 0xff01:
86                /* Scroll wheel */
87                hid_map_usage_clear(hi, usage, bit, max, EV_REL, REL_WHEEL);
88                break;
89        case 0xff02:
90                /*
91                 * This byte contains a copy of the modifier keys byte of a
92                 * standard hid keyboard report, as send by interface 0
93                 * (this usage is found on interface 1).
94                 *
95                 * This byte only gets send when another key in the same report
96                 * changes state, and as such is useless, ignore it.
97                 */
98                return -1;
99        case 0xff05:
100                set_bit(EV_REP, input->evbit);
101                ms_map_key_clear(KEY_F13);
102                set_bit(KEY_F14, input->keybit);
103                set_bit(KEY_F15, input->keybit);
104                set_bit(KEY_F16, input->keybit);
105                set_bit(KEY_F17, input->keybit);
106                set_bit(KEY_F18, input->keybit);
107                break;
108        default:
109                return 0;
110        }
111        return 1;
112}
113
114static int ms_presenter_8k_quirk(struct hid_input *hi, struct hid_usage *usage,
115                unsigned long **bit, int *max)
116{
117        if ((usage->hid & HID_USAGE_PAGE) != HID_UP_MSVENDOR)
118                return 0;
119
120        set_bit(EV_REP, hi->input->evbit);
121        switch (usage->hid & HID_USAGE) {
122        case 0xfd08: ms_map_key_clear(KEY_FORWARD);     break;
123        case 0xfd09: ms_map_key_clear(KEY_BACK);        break;
124        case 0xfd0b: ms_map_key_clear(KEY_PLAYPAUSE);   break;
125        case 0xfd0e: ms_map_key_clear(KEY_CLOSE);       break;
126        case 0xfd0f: ms_map_key_clear(KEY_PLAY);        break;
127        default:
128                return 0;
129        }
130        return 1;
131}
132
133static int ms_input_mapping(struct hid_device *hdev, struct hid_input *hi,
134                struct hid_field *field, struct hid_usage *usage,
135                unsigned long **bit, int *max)
136{
137        unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
138
139        if (quirks & MS_ERGONOMY) {
140                int ret = ms_ergonomy_kb_quirk(hi, usage, bit, max);
141                if (ret)
142                        return ret;
143        }
144
145        if ((quirks & MS_PRESENTER) &&
146                        ms_presenter_8k_quirk(hi, usage, bit, max))
147                return 1;
148
149        return 0;
150}
151
152static int ms_input_mapped(struct hid_device *hdev, struct hid_input *hi,
153                struct hid_field *field, struct hid_usage *usage,
154                unsigned long **bit, int *max)
155{
156        unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
157
158        if (quirks & MS_DUPLICATE_USAGES)
159                clear_bit(usage->code, *bit);
160
161        return 0;
162}
163
164static int ms_event(struct hid_device *hdev, struct hid_field *field,
165                struct hid_usage *usage, __s32 value)
166{
167        unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
168        struct input_dev *input;
169
170        if (!(hdev->claimed & HID_CLAIMED_INPUT) || !field->hidinput ||
171                        !usage->type)
172                return 0;
173
174        input = field->hidinput->input;
175
176        /* Handling MS keyboards special buttons */
177        if (quirks & MS_ERGONOMY && usage->hid == (HID_UP_MSVENDOR | 0xff00)) {
178                /* Special keypad keys */
179                input_report_key(input, KEY_KPEQUAL, value & 0x01);
180                input_report_key(input, KEY_KPLEFTPAREN, value & 0x02);
181                input_report_key(input, KEY_KPRIGHTPAREN, value & 0x04);
182                return 1;
183        }
184
185        if (quirks & MS_ERGONOMY && usage->hid == (HID_UP_MSVENDOR | 0xff01)) {
186                /* Scroll wheel */
187                int step = ((value & 0x60) >> 5) + 1;
188
189                switch (value & 0x1f) {
190                case 0x01:
191                        input_report_rel(input, REL_WHEEL, step);
192                        break;
193                case 0x1f:
194                        input_report_rel(input, REL_WHEEL, -step);
195                        break;
196                }
197                return 1;
198        }
199
200        if (quirks & MS_ERGONOMY && usage->hid == (HID_UP_MSVENDOR | 0xff05)) {
201                static unsigned int last_key = 0;
202                unsigned int key = 0;
203                switch (value) {
204                case 0x01: key = KEY_F14; break;
205                case 0x02: key = KEY_F15; break;
206                case 0x04: key = KEY_F16; break;
207                case 0x08: key = KEY_F17; break;
208                case 0x10: key = KEY_F18; break;
209                }
210                if (key) {
211                        input_event(input, usage->type, key, 1);
212                        last_key = key;
213                } else
214                        input_event(input, usage->type, last_key, 0);
215
216                return 1;
217        }
218
219        return 0;
220}
221
222static int ms_probe(struct hid_device *hdev, const struct hid_device_id *id)
223{
224        unsigned long quirks = id->driver_data;
225        int ret;
226
227        hid_set_drvdata(hdev, (void *)quirks);
228
229        if (quirks & MS_NOGET)
230                hdev->quirks |= HID_QUIRK_NOGET;
231
232        ret = hid_parse(hdev);
233        if (ret) {
234                hid_err(hdev, "parse failed\n");
235                goto err_free;
236        }
237
238        ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT | ((quirks & MS_HIDINPUT) ?
239                                HID_CONNECT_HIDINPUT_FORCE : 0));
240        if (ret) {
241                hid_err(hdev, "hw start failed\n");
242                goto err_free;
243        }
244
245        return 0;
246err_free:
247        return ret;
248}
249
250static const struct hid_device_id ms_devices[] = {
251        { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_SIDEWINDER_GV),
252                .driver_data = MS_HIDINPUT },
253        { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_OFFICE_KB),
254                .driver_data = MS_ERGONOMY },
255        { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K),
256                .driver_data = MS_ERGONOMY },
257        { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K_JP),
258                .driver_data = MS_ERGONOMY },
259        { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE7K),
260                .driver_data = MS_ERGONOMY },
261        { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_LK6K),
262                .driver_data = MS_ERGONOMY | MS_RDESC },
263        { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_USB),
264                .driver_data = MS_PRESENTER },
265        { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_3K),
266                .driver_data = MS_ERGONOMY },
267        { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_7K),
268                .driver_data = MS_ERGONOMY },
269        { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_600),
270                .driver_data = MS_ERGONOMY },
271        { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_3KV1),
272                .driver_data = MS_ERGONOMY },
273        { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_WIRELESS_OPTICAL_DESKTOP_3_0),
274                .driver_data = MS_NOGET },
275        { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_COMFORT_MOUSE_4500),
276                .driver_data = MS_DUPLICATE_USAGES },
277        { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TYPE_COVER_PRO_3),
278                .driver_data = MS_HIDINPUT },
279        { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TYPE_COVER_PRO_3_2),
280                .driver_data = MS_HIDINPUT },
281        { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TYPE_COVER_PRO_3_JP),
282                .driver_data = MS_HIDINPUT },
283        { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TYPE_COVER_PRO_4_JP),
284                .driver_data = MS_HIDINPUT },
285        { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_POWER_COVER),
286                .driver_data = MS_HIDINPUT },
287        { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_COMFORT_KEYBOARD),
288                .driver_data = MS_ERGONOMY},
289
290        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_BT),
291                .driver_data = MS_PRESENTER },
292        { }
293};
294MODULE_DEVICE_TABLE(hid, ms_devices);
295
296static struct hid_driver ms_driver = {
297        .name = "microsoft",
298        .id_table = ms_devices,
299        .report_fixup = ms_report_fixup,
300        .input_mapping = ms_input_mapping,
301        .input_mapped = ms_input_mapped,
302        .event = ms_event,
303        .probe = ms_probe,
304};
305module_hid_driver(ms_driver);
306
307MODULE_LICENSE("GPL");
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