hid-microsoft.c revision 3ccc60f9d8c39180c205dba1a020735bda1b2491
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 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 * 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 && 50 !memcmp((char []){ 0x19, 0x00, 0x29, 0xff }, 51 &rdesc[94], 4)) { 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 /* Handling MS keyboards special buttons */ 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_LK6K), 199 .driver_data = MS_ERGONOMY | MS_RDESC }, 200 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_USB), 201 .driver_data = MS_PRESENTER }, 202 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_3K), 203 .driver_data = MS_ERGONOMY | MS_RDESC_3K }, 204 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_WIRELESS_OPTICAL_DESKTOP_3_0), 205 .driver_data = MS_NOGET }, 206 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_COMFORT_MOUSE_4500), 207 .driver_data = MS_DUPLICATE_USAGES }, 208 209 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_BT), 210 .driver_data = MS_PRESENTER }, 211 { } 212}; 213MODULE_DEVICE_TABLE(hid, ms_devices); 214 215static struct hid_driver ms_driver = { 216 .name = "microsoft", 217 .id_table = ms_devices, 218 .report_fixup = ms_report_fixup, 219 .input_mapping = ms_input_mapping, 220 .input_mapped = ms_input_mapped, 221 .event = ms_event, 222 .probe = ms_probe, 223}; 224 225static int __init ms_init(void) 226{ 227 return hid_register_driver(&ms_driver); 228} 229 230static void __exit ms_exit(void) 231{ 232 hid_unregister_driver(&ms_driver); 233} 234 235module_init(ms_init); 236module_exit(ms_exit); 237MODULE_LICENSE("GPL"); 238