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