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 several 34 * 'Usage Min/Max' where it ought to have 'Physical Min/Max' 35 */ 36 static 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[284] == 0x19 && 42 rdesc[286] == 0x2a && rdesc[304] == 0x19 && 43 rdesc[306] == 0x29 && rdesc[352] == 0x1a && 44 rdesc[355] == 0x2a && rdesc[557] == 0x19 && 45 rdesc[559] == 0x29) { 46 dev_info(&hdev->dev, "fixing up Microsoft Wireless Receiver " 47 "Model 1028 report descriptor\n"); 48 rdesc[284] = rdesc[304] = rdesc[557] = 0x35; 49 rdesc[352] = 0x36; 50 rdesc[286] = rdesc[355] = 0x46; 51 rdesc[306] = rdesc[559] = 0x45; 52 } 53 } 54 55 #define ms_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, max, \ 56 EV_KEY, (c)) 57 static int ms_ergonomy_kb_quirk(struct hid_input *hi, struct hid_usage *usage, 58 unsigned long **bit, int *max) 59 { 60 struct input_dev *input = hi->input; 61 62 switch (usage->hid & HID_USAGE) { 63 case 0xfd06: ms_map_key_clear(KEY_CHAT); break; 64 case 0xfd07: ms_map_key_clear(KEY_PHONE); break; 65 case 0xff05: 66 set_bit(EV_REP, input->evbit); 67 ms_map_key_clear(KEY_F13); 68 set_bit(KEY_F14, input->keybit); 69 set_bit(KEY_F15, input->keybit); 70 set_bit(KEY_F16, input->keybit); 71 set_bit(KEY_F17, input->keybit); 72 set_bit(KEY_F18, input->keybit); 73 default: 74 return 0; 75 } 76 return 1; 77 } 78 79 static int ms_presenter_8k_quirk(struct hid_input *hi, struct hid_usage *usage, 80 unsigned long **bit, int *max) 81 { 82 set_bit(EV_REP, hi->input->evbit); 83 switch (usage->hid & HID_USAGE) { 84 case 0xfd08: ms_map_key_clear(KEY_FORWARD); break; 85 case 0xfd09: ms_map_key_clear(KEY_BACK); break; 86 case 0xfd0b: ms_map_key_clear(KEY_PLAYPAUSE); break; 87 case 0xfd0e: ms_map_key_clear(KEY_CLOSE); break; 88 case 0xfd0f: ms_map_key_clear(KEY_PLAY); break; 89 default: 90 return 0; 91 } 92 return 1; 93 } 94 95 static int ms_input_mapping(struct hid_device *hdev, struct hid_input *hi, 96 struct hid_field *field, struct hid_usage *usage, 97 unsigned long **bit, int *max) 98 { 99 unsigned long quirks = (unsigned long)hid_get_drvdata(hdev); 100 101 if ((usage->hid & HID_USAGE_PAGE) != HID_UP_MSVENDOR) 102 return 0; 103 104 if (quirks & MS_ERGONOMY) { 105 int ret = ms_ergonomy_kb_quirk(hi, usage, bit, max); 106 if (ret) 107 return ret; 108 } 109 110 if ((quirks & MS_PRESENTER) && 111 ms_presenter_8k_quirk(hi, usage, bit, max)) 112 return 1; 113 114 return 0; 115 } 116 117 static int ms_event(struct hid_device *hdev, struct hid_field *field, 118 struct hid_usage *usage, __s32 value) 119 { 120 unsigned long quirks = (unsigned long)hid_get_drvdata(hdev); 121 122 if (!(hdev->claimed & HID_CLAIMED_INPUT) || !field->hidinput || 123 !usage->type) 124 return 0; 125 126 /* Handling MS keyboards special buttons */ 127 if (quirks & MS_ERGONOMY && usage->hid == (HID_UP_MSVENDOR | 0xff05)) { 128 struct input_dev *input = field->hidinput->input; 129 static unsigned int last_key = 0; 130 unsigned int key = 0; 131 switch (value) { 132 case 0x01: key = KEY_F14; break; 133 case 0x02: key = KEY_F15; break; 134 case 0x04: key = KEY_F16; break; 135 case 0x08: key = KEY_F17; break; 136 case 0x10: key = KEY_F18; break; 137 } 138 if (key) { 139 input_event(input, usage->type, key, 1); 140 last_key = key; 141 } else 142 input_event(input, usage->type, last_key, 0); 143 144 return 1; 145 } 146 147 return 0; 148 } 149 150 static int ms_probe(struct hid_device *hdev, const struct hid_device_id *id) 151 { 152 unsigned long quirks = id->driver_data; 153 int ret; 154 155 hid_set_drvdata(hdev, (void *)quirks); 156 157 if (quirks & MS_NOGET) 158 hdev->quirks |= HID_QUIRK_NOGET; 159 160 ret = hid_parse(hdev); 161 if (ret) { 162 dev_err(&hdev->dev, "parse failed\n"); 163 goto err_free; 164 } 165 166 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT | ((quirks & MS_HIDINPUT) ? 167 HID_CONNECT_HIDINPUT_FORCE : 0)); 168 if (ret) { 169 dev_err(&hdev->dev, "hw start failed\n"); 170 goto err_free; 171 } 172 173 return 0; 174 err_free: 175 return ret; 176 } 177 178 static const struct hid_device_id ms_devices[] = { 179 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_SIDEWINDER_GV), 180 .driver_data = MS_HIDINPUT }, 181 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K), 182 .driver_data = MS_ERGONOMY }, 183 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_LK6K), 184 .driver_data = MS_ERGONOMY | MS_RDESC }, 185 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_USB), 186 .driver_data = MS_PRESENTER }, 187 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_WIRELESS_OPTICAL_DESKTOP_3_0), 188 .driver_data = MS_NOGET }, 189 190 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_BT), 191 .driver_data = MS_PRESENTER }, 192 { } 193 }; 194 MODULE_DEVICE_TABLE(hid, ms_devices); 195 196 static struct hid_driver ms_driver = { 197 .name = "microsoft", 198 .id_table = ms_devices, 199 .report_fixup = ms_report_fixup, 200 .input_mapping = ms_input_mapping, 201 .event = ms_event, 202 .probe = ms_probe, 203 }; 204 205 static int ms_init(void) 206 { 207 return hid_register_driver(&ms_driver); 208 } 209 210 static void ms_exit(void) 211 { 212 hid_unregister_driver(&ms_driver); 213 } 214 215 module_init(ms_init); 216 module_exit(ms_exit); 217 MODULE_LICENSE("GPL"); 218 219 HID_COMPAT_LOAD_DRIVER(microsoft); 220