hid-microsoft.c revision 0fb21de0799a985d2da3da14ae5625d724256638
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 */ 36static 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)) 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 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 74static 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 90static 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 112static 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 145static 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; 169err_free: 170 return ret; 171} 172 173static 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}; 189MODULE_DEVICE_TABLE(hid, ms_devices); 190 191static 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 200static int ms_init(void) 201{ 202 return hid_register_driver(&ms_driver); 203} 204 205static void ms_exit(void) 206{ 207 hid_unregister_driver(&ms_driver); 208} 209 210module_init(ms_init); 211module_exit(ms_exit); 212MODULE_LICENSE("GPL"); 213 214HID_COMPAT_LOAD_DRIVER(microsoft); 215