Version:  2.6.34 2.6.35 2.6.36 2.6.37 2.6.38 2.6.39 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14

Linux/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) 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 #define MS_RDESC_3K             0x40
 32 
 33 static __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          * Microsoft Wireless Desktop Receiver (Model 1028) has
 40          * 'Usage Min/Max' where it ought to have 'Physical Min/Max'
 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         /* the same as above (s/usage/physical/) */
 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))
 60 static 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                 break;
 77         default:
 78                 return 0;
 79         }
 80         return 1;
 81 }
 82 
 83 static int ms_presenter_8k_quirk(struct hid_input *hi, struct hid_usage *usage,
 84                 unsigned long **bit, int *max)
 85 {
 86         set_bit(EV_REP, hi->input->evbit);
 87         switch (usage->hid & HID_USAGE) {
 88         case 0xfd08: ms_map_key_clear(KEY_FORWARD);     break;
 89         case 0xfd09: ms_map_key_clear(KEY_BACK);        break;
 90         case 0xfd0b: ms_map_key_clear(KEY_PLAYPAUSE);   break;
 91         case 0xfd0e: ms_map_key_clear(KEY_CLOSE);       break;
 92         case 0xfd0f: ms_map_key_clear(KEY_PLAY);        break;
 93         default:
 94                 return 0;
 95         }
 96         return 1;
 97 }
 98 
 99 static int ms_input_mapping(struct hid_device *hdev, struct hid_input *hi,
100                 struct hid_field *field, struct hid_usage *usage,
101                 unsigned long **bit, int *max)
102 {
103         unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
104 
105         if ((usage->hid & HID_USAGE_PAGE) != HID_UP_MSVENDOR)
106                 return 0;
107 
108         if (quirks & MS_ERGONOMY) {
109                 int ret = ms_ergonomy_kb_quirk(hi, usage, bit, max);
110                 if (ret)
111                         return ret;
112         }
113 
114         if ((quirks & MS_PRESENTER) &&
115                         ms_presenter_8k_quirk(hi, usage, bit, max))
116                 return 1;
117 
118         return 0;
119 }
120 
121 static int ms_input_mapped(struct hid_device *hdev, struct hid_input *hi,
122                 struct hid_field *field, struct hid_usage *usage,
123                 unsigned long **bit, int *max)
124 {
125         unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
126 
127         if (quirks & MS_DUPLICATE_USAGES)
128                 clear_bit(usage->code, *bit);
129 
130         return 0;
131 }
132 
133 static int ms_event(struct hid_device *hdev, struct hid_field *field,
134                 struct hid_usage *usage, __s32 value)
135 {
136         unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
137 
138         if (!(hdev->claimed & HID_CLAIMED_INPUT) || !field->hidinput ||
139                         !usage->type)
140                 return 0;
141 
142         /* Handling MS keyboards special buttons */
143         if (quirks & MS_ERGONOMY && usage->hid == (HID_UP_MSVENDOR | 0xff05)) {
144                 struct input_dev *input = field->hidinput->input;
145                 static unsigned int last_key = 0;
146                 unsigned int key = 0;
147                 switch (value) {
148                 case 0x01: key = KEY_F14; break;
149                 case 0x02: key = KEY_F15; break;
150                 case 0x04: key = KEY_F16; break;
151                 case 0x08: key = KEY_F17; break;
152                 case 0x10: key = KEY_F18; break;
153                 }
154                 if (key) {
155                         input_event(input, usage->type, key, 1);
156                         last_key = key;
157                 } else
158                         input_event(input, usage->type, last_key, 0);
159 
160                 return 1;
161         }
162 
163         return 0;
164 }
165 
166 static int ms_probe(struct hid_device *hdev, const struct hid_device_id *id)
167 {
168         unsigned long quirks = id->driver_data;
169         int ret;
170 
171         hid_set_drvdata(hdev, (void *)quirks);
172 
173         if (quirks & MS_NOGET)
174                 hdev->quirks |= HID_QUIRK_NOGET;
175 
176         ret = hid_parse(hdev);
177         if (ret) {
178                 hid_err(hdev, "parse failed\n");
179                 goto err_free;
180         }
181 
182         ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT | ((quirks & MS_HIDINPUT) ?
183                                 HID_CONNECT_HIDINPUT_FORCE : 0));
184         if (ret) {
185                 hid_err(hdev, "hw start failed\n");
186                 goto err_free;
187         }
188 
189         return 0;
190 err_free:
191         return ret;
192 }
193 
194 static const struct hid_device_id ms_devices[] = {
195         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_SIDEWINDER_GV),
196                 .driver_data = MS_HIDINPUT },
197         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K),
198                 .driver_data = MS_ERGONOMY },
199         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K_JP),
200                 .driver_data = MS_ERGONOMY },
201         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_LK6K),
202                 .driver_data = MS_ERGONOMY | MS_RDESC },
203         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_USB),
204                 .driver_data = MS_PRESENTER },
205         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_3K),
206                 .driver_data = MS_ERGONOMY | MS_RDESC_3K },
207         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_WIRELESS_OPTICAL_DESKTOP_3_0),
208                 .driver_data = MS_NOGET },
209         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_COMFORT_MOUSE_4500),
210                 .driver_data = MS_DUPLICATE_USAGES },
211         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TYPE_COVER_2),
212                 .driver_data = 0 },
213         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TOUCH_COVER_2),
214                 .driver_data = 0 },
215 
216         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_BT),
217                 .driver_data = MS_PRESENTER },
218         { }
219 };
220 MODULE_DEVICE_TABLE(hid, ms_devices);
221 
222 static struct hid_driver ms_driver = {
223         .name = "microsoft",
224         .id_table = ms_devices,
225         .report_fixup = ms_report_fixup,
226         .input_mapping = ms_input_mapping,
227         .input_mapped = ms_input_mapped,
228         .event = ms_event,
229         .probe = ms_probe,
230 };
231 module_hid_driver(ms_driver);
232 
233 MODULE_LICENSE("GPL");
234 

This page was automatically generated by LXR 0.3.1 (source).  •  Linux is a registered trademark of Linus Torvalds  •  Contact us