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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#define MS_RDESC_3K 0x40
32
33static __u8 *ms_report_fixup(struct hid_device *hdev, __u8 *rdesc,
34 unsigned int *rsize)
35{
36 unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
37
38
39
40
41
42 if ((quirks & MS_RDESC) && *rsize == 571 && rdesc[557] == 0x19 &&
43 rdesc[559] == 0x29) {
44 hid_info(hdev, "fixing up Microsoft Wireless Receiver Model 1028 report descriptor\n");
45 rdesc[557] = 0x35;
46 rdesc[559] = 0x45;
47 }
48
49 if ((quirks & MS_RDESC_3K) && *rsize == 106 && rdesc[94] == 0x19 &&
50 rdesc[95] == 0x00 && rdesc[96] == 0x29 &&
51 rdesc[97] == 0xff) {
52 rdesc[94] = 0x35;
53 rdesc[96] = 0x45;
54 }
55 return rdesc;
56}
57
58#define ms_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, max, \
59 EV_KEY, (c))
60static int ms_ergonomy_kb_quirk(struct hid_input *hi, struct hid_usage *usage,
61 unsigned long **bit, int *max)
62{
63 struct input_dev *input = hi->input;
64
65 switch (usage->hid & HID_USAGE) {
66 case 0xfd06: ms_map_key_clear(KEY_CHAT); break;
67 case 0xfd07: ms_map_key_clear(KEY_PHONE); break;
68 case 0xff05:
69 set_bit(EV_REP, input->evbit);
70 ms_map_key_clear(KEY_F13);
71 set_bit(KEY_F14, input->keybit);
72 set_bit(KEY_F15, input->keybit);
73 set_bit(KEY_F16, input->keybit);
74 set_bit(KEY_F17, input->keybit);
75 set_bit(KEY_F18, input->keybit);
76 default:
77 return 0;
78 }
79 return 1;
80}
81
82static int ms_presenter_8k_quirk(struct hid_input *hi, struct hid_usage *usage,
83 unsigned long **bit, int *max)
84{
85 set_bit(EV_REP, hi->input->evbit);
86 switch (usage->hid & HID_USAGE) {
87 case 0xfd08: ms_map_key_clear(KEY_FORWARD); break;
88 case 0xfd09: ms_map_key_clear(KEY_BACK); break;
89 case 0xfd0b: ms_map_key_clear(KEY_PLAYPAUSE); break;
90 case 0xfd0e: ms_map_key_clear(KEY_CLOSE); break;
91 case 0xfd0f: ms_map_key_clear(KEY_PLAY); break;
92 default:
93 return 0;
94 }
95 return 1;
96}
97
98static int ms_input_mapping(struct hid_device *hdev, struct hid_input *hi,
99 struct hid_field *field, struct hid_usage *usage,
100 unsigned long **bit, int *max)
101{
102 unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
103
104 if ((usage->hid & HID_USAGE_PAGE) != HID_UP_MSVENDOR)
105 return 0;
106
107 if (quirks & MS_ERGONOMY) {
108 int ret = ms_ergonomy_kb_quirk(hi, usage, bit, max);
109 if (ret)
110 return ret;
111 }
112
113 if ((quirks & MS_PRESENTER) &&
114 ms_presenter_8k_quirk(hi, usage, bit, max))
115 return 1;
116
117 return 0;
118}
119
120static int ms_input_mapped(struct hid_device *hdev, struct hid_input *hi,
121 struct hid_field *field, struct hid_usage *usage,
122 unsigned long **bit, int *max)
123{
124 unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
125
126 if (quirks & MS_DUPLICATE_USAGES)
127 clear_bit(usage->code, *bit);
128
129 return 0;
130}
131
132static int ms_event(struct hid_device *hdev, struct hid_field *field,
133 struct hid_usage *usage, __s32 value)
134{
135 unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
136
137 if (!(hdev->claimed & HID_CLAIMED_INPUT) || !field->hidinput ||
138 !usage->type)
139 return 0;
140
141
142 if (quirks & MS_ERGONOMY && usage->hid == (HID_UP_MSVENDOR | 0xff05)) {
143 struct input_dev *input = field->hidinput->input;
144 static unsigned int last_key = 0;
145 unsigned int key = 0;
146 switch (value) {
147 case 0x01: key = KEY_F14; break;
148 case 0x02: key = KEY_F15; break;
149 case 0x04: key = KEY_F16; break;
150 case 0x08: key = KEY_F17; break;
151 case 0x10: key = KEY_F18; break;
152 }
153 if (key) {
154 input_event(input, usage->type, key, 1);
155 last_key = key;
156 } else
157 input_event(input, usage->type, last_key, 0);
158
159 return 1;
160 }
161
162 return 0;
163}
164
165static int ms_probe(struct hid_device *hdev, const struct hid_device_id *id)
166{
167 unsigned long quirks = id->driver_data;
168 int ret;
169
170 hid_set_drvdata(hdev, (void *)quirks);
171
172 if (quirks & MS_NOGET)
173 hdev->quirks |= HID_QUIRK_NOGET;
174
175 ret = hid_parse(hdev);
176 if (ret) {
177 hid_err(hdev, "parse failed\n");
178 goto err_free;
179 }
180
181 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT | ((quirks & MS_HIDINPUT) ?
182 HID_CONNECT_HIDINPUT_FORCE : 0));
183 if (ret) {
184 hid_err(hdev, "hw start failed\n");
185 goto err_free;
186 }
187
188 return 0;
189err_free:
190 return ret;
191}
192
193static const struct hid_device_id ms_devices[] = {
194 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_SIDEWINDER_GV),
195 .driver_data = MS_HIDINPUT },
196 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K),
197 .driver_data = MS_ERGONOMY },
198 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K_JP),
199 .driver_data = MS_ERGONOMY },
200 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_LK6K),
201 .driver_data = MS_ERGONOMY | MS_RDESC },
202 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_USB),
203 .driver_data = MS_PRESENTER },
204 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_3K),
205 .driver_data = MS_ERGONOMY | MS_RDESC_3K },
206 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_WIRELESS_OPTICAL_DESKTOP_3_0),
207 .driver_data = MS_NOGET },
208 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_COMFORT_MOUSE_4500),
209 .driver_data = MS_DUPLICATE_USAGES },
210
211 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_BT),
212 .driver_data = MS_PRESENTER },
213 { }
214};
215MODULE_DEVICE_TABLE(hid, ms_devices);
216
217static struct hid_driver ms_driver = {
218 .name = "microsoft",
219 .id_table = ms_devices,
220 .report_fixup = ms_report_fixup,
221 .input_mapping = ms_input_mapping,
222 .input_mapped = ms_input_mapped,
223 .event = ms_event,
224 .probe = ms_probe,
225};
226module_hid_driver(ms_driver);
227
228MODULE_LICENSE("GPL");
229
