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hid-logitech-dj.c
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linux-6.19.14/drivers/hid/hid-logitech-dj.c
1// SPDX-License-Identifier: GPL-2.0-only 2/* 3 * HID driver for Logitech receivers 4 * 5 * Copyright (c) 2011 Logitech 6 */ 7 8 9 10#include <linux/device.h> 11#include <linux/hid.h> 12#include <linux/module.h> 13#include <linux/kfifo.h> 14#include <linux/delay.h> 15#include <linux/usb.h> /* For to_usb_interface for kvm extra intf check */ 16#include <linux/unaligned.h> 17#include "hid-ids.h" 18 19#define DJ_MAX_PAIRED_DEVICES 7 20#define DJ_MAX_NUMBER_NOTIFS 8 21#define DJ_RECEIVER_INDEX 0 22#define DJ_DEVICE_INDEX_MIN 1 23#define DJ_DEVICE_INDEX_MAX 7 24 25#define DJREPORT_SHORT_LENGTH 15 26#define DJREPORT_LONG_LENGTH 32 27 28#define REPORT_ID_DJ_SHORT 0x20 29#define REPORT_ID_DJ_LONG 0x21 30 31#define REPORT_ID_HIDPP_SHORT 0x10 32#define REPORT_ID_HIDPP_LONG 0x11 33#define REPORT_ID_HIDPP_VERY_LONG 0x12 34 35#define HIDPP_REPORT_SHORT_LENGTH 7 36#define HIDPP_REPORT_LONG_LENGTH 20 37 38#define HIDPP_RECEIVER_INDEX 0xff 39 40#define REPORT_TYPE_RFREPORT_FIRST 0x01 41#define REPORT_TYPE_RFREPORT_LAST 0x1F 42 43/* Command Switch to DJ mode */ 44#define REPORT_TYPE_CMD_SWITCH 0x80 45#define CMD_SWITCH_PARAM_DEVBITFIELD 0x00 46#define CMD_SWITCH_PARAM_TIMEOUT_SECONDS 0x01 47#define TIMEOUT_NO_KEEPALIVE 0x00 48 49/* Command to Get the list of Paired devices */ 50#define REPORT_TYPE_CMD_GET_PAIRED_DEVICES 0x81 51 52/* Device Paired Notification */ 53#define REPORT_TYPE_NOTIF_DEVICE_PAIRED 0x41 54#define SPFUNCTION_MORE_NOTIF_EXPECTED 0x01 55#define SPFUNCTION_DEVICE_LIST_EMPTY 0x02 56#define DEVICE_PAIRED_PARAM_SPFUNCTION 0x00 57#define DEVICE_PAIRED_PARAM_EQUAD_ID_LSB 0x01 58#define DEVICE_PAIRED_PARAM_EQUAD_ID_MSB 0x02 59#define DEVICE_PAIRED_RF_REPORT_TYPE 0x03 60 61/* Device Un-Paired Notification */ 62#define REPORT_TYPE_NOTIF_DEVICE_UNPAIRED 0x40 63 64/* Connection Status Notification */ 65#define REPORT_TYPE_NOTIF_CONNECTION_STATUS 0x42 66#define CONNECTION_STATUS_PARAM_STATUS 0x00 67#define STATUS_LINKLOSS 0x01 68 69/* Error Notification */ 70#define REPORT_TYPE_NOTIF_ERROR 0x7F 71#define NOTIF_ERROR_PARAM_ETYPE 0x00 72#define ETYPE_KEEPALIVE_TIMEOUT 0x01 73 74/* supported DJ HID && RF report types */ 75#define REPORT_TYPE_KEYBOARD 0x01 76#define REPORT_TYPE_MOUSE 0x02 77#define REPORT_TYPE_CONSUMER_CONTROL 0x03 78#define REPORT_TYPE_SYSTEM_CONTROL 0x04 79#define REPORT_TYPE_MEDIA_CENTER 0x08 80#define REPORT_TYPE_LEDS 0x0E 81 82/* RF Report types bitfield */ 83#define STD_KEYBOARD BIT(1) 84#define STD_MOUSE BIT(2) 85#define MULTIMEDIA BIT(3) 86#define POWER_KEYS BIT(4) 87#define KBD_MOUSE BIT(5) 88#define MEDIA_CENTER BIT(8) 89#define KBD_LEDS BIT(14) 90/* Fake (bitnr > NUMBER_OF_HID_REPORTS) bit to track HID++ capability */ 91#define HIDPP BIT_ULL(63) 92 93/* HID++ Device Connected Notification */ 94#define REPORT_TYPE_NOTIF_DEVICE_CONNECTED 0x41 95#define HIDPP_PARAM_PROTO_TYPE 0x00 96#define HIDPP_PARAM_DEVICE_INFO 0x01 97#define HIDPP_PARAM_EQUAD_LSB 0x02 98#define HIDPP_PARAM_EQUAD_MSB 0x03 99#define HIDPP_PARAM_27MHZ_DEVID 0x03 100#define HIDPP_DEVICE_TYPE_MASK GENMASK(3, 0) 101#define HIDPP_LINK_STATUS_MASK BIT(6) 102#define HIDPP_MANUFACTURER_MASK BIT(7) 103#define HIDPP_27MHZ_SECURE_MASK BIT(7) 104 105#define HIDPP_DEVICE_TYPE_KEYBOARD 1 106#define HIDPP_DEVICE_TYPE_MOUSE 2 107 108#define HIDPP_SET_REGISTER 0x80 109#define HIDPP_GET_LONG_REGISTER 0x83 110#define HIDPP_REG_CONNECTION_STATE 0x02 111#define HIDPP_REG_PAIRING_INFORMATION 0xB5 112#define HIDPP_PAIRING_INFORMATION 0x20 113#define HIDPP_FAKE_DEVICE_ARRIVAL 0x02 114 115enum recvr_type { 116 recvr_type_dj, 117 recvr_type_hidpp, 118 recvr_type_gaming_hidpp, 119 recvr_type_gaming_hidpp_ls_1_3, 120 recvr_type_mouse_only, 121 recvr_type_27mhz, 122 recvr_type_bluetooth, 123 recvr_type_dinovo, 124}; 125 126struct dj_report { 127 u8 report_id; 128 u8 device_index; 129 u8 report_type; 130 u8 report_params[DJREPORT_SHORT_LENGTH - 3]; 131}; 132 133struct hidpp_event { 134 u8 report_id; 135 u8 device_index; 136 u8 sub_id; 137 u8 params[HIDPP_REPORT_LONG_LENGTH - 3U]; 138} __packed; 139 140struct dj_receiver_dev { 141 struct hid_device *mouse; 142 struct hid_device *keyboard; 143 struct hid_device *hidpp; 144 struct dj_device *paired_dj_devices[DJ_MAX_PAIRED_DEVICES + 145 DJ_DEVICE_INDEX_MIN]; 146 struct list_head list; 147 struct kref kref; 148 struct work_struct work; 149 struct kfifo notif_fifo; 150 unsigned long last_query; /* in jiffies */ 151 bool ready; 152 bool dj_mode; 153 enum recvr_type type; 154 unsigned int unnumbered_application; 155 spinlock_t lock; 156}; 157 158struct dj_device { 159 struct hid_device *hdev; 160 struct dj_receiver_dev *dj_receiver_dev; 161 u64 reports_supported; 162 u8 device_index; 163}; 164 165#define WORKITEM_TYPE_EMPTY 0 166#define WORKITEM_TYPE_PAIRED 1 167#define WORKITEM_TYPE_UNPAIRED 2 168#define WORKITEM_TYPE_UNKNOWN 255 169 170struct dj_workitem { 171 u8 type; /* WORKITEM_TYPE_* */ 172 u8 device_index; 173 u8 device_type; 174 u8 quad_id_msb; 175 u8 quad_id_lsb; 176 u64 reports_supported; 177}; 178 179/* Keyboard descriptor (1) */ 180static const char kbd_descriptor[] = { 181 0x05, 0x01, /* USAGE_PAGE (generic Desktop) */ 182 0x09, 0x06, /* USAGE (Keyboard) */ 183 0xA1, 0x01, /* COLLECTION (Application) */ 184 0x85, 0x01, /* REPORT_ID (1) */ 185 0x95, 0x08, /* REPORT_COUNT (8) */ 186 0x75, 0x01, /* REPORT_SIZE (1) */ 187 0x15, 0x00, /* LOGICAL_MINIMUM (0) */ 188 0x25, 0x01, /* LOGICAL_MAXIMUM (1) */ 189 0x05, 0x07, /* USAGE_PAGE (Keyboard) */ 190 0x19, 0xE0, /* USAGE_MINIMUM (Left Control) */ 191 0x29, 0xE7, /* USAGE_MAXIMUM (Right GUI) */ 192 0x81, 0x02, /* INPUT (Data,Var,Abs) */ 193 0x95, 0x06, /* REPORT_COUNT (6) */ 194 0x75, 0x08, /* REPORT_SIZE (8) */ 195 0x15, 0x00, /* LOGICAL_MINIMUM (0) */ 196 0x26, 0xFF, 0x00, /* LOGICAL_MAXIMUM (255) */ 197 0x05, 0x07, /* USAGE_PAGE (Keyboard) */ 198 0x19, 0x00, /* USAGE_MINIMUM (no event) */ 199 0x2A, 0xFF, 0x00, /* USAGE_MAXIMUM (reserved) */ 200 0x81, 0x00, /* INPUT (Data,Ary,Abs) */ 201 0x85, 0x0e, /* REPORT_ID (14) */ 202 0x05, 0x08, /* USAGE PAGE (LED page) */ 203 0x95, 0x05, /* REPORT COUNT (5) */ 204 0x75, 0x01, /* REPORT SIZE (1) */ 205 0x15, 0x00, /* LOGICAL_MINIMUM (0) */ 206 0x25, 0x01, /* LOGICAL_MAXIMUM (1) */ 207 0x19, 0x01, /* USAGE MINIMUM (1) */ 208 0x29, 0x05, /* USAGE MAXIMUM (5) */ 209 0x91, 0x02, /* OUTPUT (Data, Variable, Absolute) */ 210 0x95, 0x01, /* REPORT COUNT (1) */ 211 0x75, 0x03, /* REPORT SIZE (3) */ 212 0x91, 0x01, /* OUTPUT (Constant) */ 213 0xC0 214}; 215 216/* Gaming Keyboard descriptor (1) */ 217static const char kbd_lightspeed_1_3_descriptor[] = { 218 0x05, 0x01, /* Usage Page (Generic Desktop) */ 219 0x09, 0x06, /* Usage (Keyboard) */ 220 0xA1, 0x01, /* Collection (Application) */ 221 0x85, 0x01, /* Report ID (1) */ 222 0x05, 0x07, /* Usage Page (Kbrd/Keypad) */ 223 0x19, 0xE0, /* Usage Minimum (0xE0) */ 224 0x29, 0xE7, /* Usage Maximum (0xE7) */ 225 0x15, 0x00, /* Logical Minimum (0) */ 226 0x25, 0x01, /* Logical Maximum (1) */ 227 0x75, 0x01, /* Report Size (1) */ 228 0x95, 0x08, /* Report Count (8) */ 229 0x81, 0x02, /* Input (Data,Var) */ 230 0x95, 0x70, /* Report Count (112) */ 231 0x19, 0x04, /* Usage Minimum (0x04) */ 232 0x29, 0x73, /* Usage Maximum (0x73) */ 233 0x81, 0x02, /* Input (Data,Var,Abs) */ 234 0x95, 0x05, /* Report Count (5) */ 235 0x19, 0x87, /* Usage Minimum (0x87) */ 236 0x29, 0x8B, /* Usage Maximum (0x8B) */ 237 0x81, 0x02, /* Input (Data,Var,Abs) */ 238 0x95, 0x03, /* Report Count (3) */ 239 0x19, 0x90, /* Usage Minimum (0x90) */ 240 0x29, 0x92, /* Usage Maximum (0x92) */ 241 0x81, 0x02, /* Input (Data,Var,Abs) */ 242 0x95, 0x05, /* Report Count (5) */ 243 0x85, 0x0E, /* Report ID (14) */ 244 0x05, 0x08, /* Usage Page (LEDs) */ 245 0x19, 0x01, /* Usage Minimum (Num Lock) */ 246 0x29, 0x05, /* Usage Maximum (Kana) */ 247 0x91, 0x02, /* Output (Data,Var,Abs) */ 248 0x95, 0x01, /* Report Count (1) */ 249 0x75, 0x03, /* Report Size (3) */ 250 0x91, 0x03, /* Output (Const,Var,Abs) */ 251 0xC0, /* End Collection */ 252}; 253 254/* Mouse descriptor (2) */ 255static const char mse_descriptor[] = { 256 0x05, 0x01, /* USAGE_PAGE (Generic Desktop) */ 257 0x09, 0x02, /* USAGE (Mouse) */ 258 0xA1, 0x01, /* COLLECTION (Application) */ 259 0x85, 0x02, /* REPORT_ID = 2 */ 260 0x09, 0x01, /* USAGE (pointer) */ 261 0xA1, 0x00, /* COLLECTION (physical) */ 262 0x05, 0x09, /* USAGE_PAGE (buttons) */ 263 0x19, 0x01, /* USAGE_MIN (1) */ 264 0x29, 0x10, /* USAGE_MAX (16) */ 265 0x15, 0x00, /* LOGICAL_MIN (0) */ 266 0x25, 0x01, /* LOGICAL_MAX (1) */ 267 0x95, 0x10, /* REPORT_COUNT (16) */ 268 0x75, 0x01, /* REPORT_SIZE (1) */ 269 0x81, 0x02, /* INPUT (data var abs) */ 270 0x05, 0x01, /* USAGE_PAGE (generic desktop) */ 271 0x16, 0x01, 0xF8, /* LOGICAL_MIN (-2047) */ 272 0x26, 0xFF, 0x07, /* LOGICAL_MAX (2047) */ 273 0x75, 0x0C, /* REPORT_SIZE (12) */ 274 0x95, 0x02, /* REPORT_COUNT (2) */ 275 0x09, 0x30, /* USAGE (X) */ 276 0x09, 0x31, /* USAGE (Y) */ 277 0x81, 0x06, /* INPUT */ 278 0x15, 0x81, /* LOGICAL_MIN (-127) */ 279 0x25, 0x7F, /* LOGICAL_MAX (127) */ 280 0x75, 0x08, /* REPORT_SIZE (8) */ 281 0x95, 0x01, /* REPORT_COUNT (1) */ 282 0x09, 0x38, /* USAGE (wheel) */ 283 0x81, 0x06, /* INPUT */ 284 0x05, 0x0C, /* USAGE_PAGE(consumer) */ 285 0x0A, 0x38, 0x02, /* USAGE(AC Pan) */ 286 0x95, 0x01, /* REPORT_COUNT (1) */ 287 0x81, 0x06, /* INPUT */ 288 0xC0, /* END_COLLECTION */ 289 0xC0, /* END_COLLECTION */ 290}; 291 292/* Mouse descriptor (2) for 27 MHz receiver, only 8 buttons */ 293static const char mse_27mhz_descriptor[] = { 294 0x05, 0x01, /* USAGE_PAGE (Generic Desktop) */ 295 0x09, 0x02, /* USAGE (Mouse) */ 296 0xA1, 0x01, /* COLLECTION (Application) */ 297 0x85, 0x02, /* REPORT_ID = 2 */ 298 0x09, 0x01, /* USAGE (pointer) */ 299 0xA1, 0x00, /* COLLECTION (physical) */ 300 0x05, 0x09, /* USAGE_PAGE (buttons) */ 301 0x19, 0x01, /* USAGE_MIN (1) */ 302 0x29, 0x08, /* USAGE_MAX (8) */ 303 0x15, 0x00, /* LOGICAL_MIN (0) */ 304 0x25, 0x01, /* LOGICAL_MAX (1) */ 305 0x95, 0x08, /* REPORT_COUNT (8) */ 306 0x75, 0x01, /* REPORT_SIZE (1) */ 307 0x81, 0x02, /* INPUT (data var abs) */ 308 0x05, 0x01, /* USAGE_PAGE (generic desktop) */ 309 0x16, 0x01, 0xF8, /* LOGICAL_MIN (-2047) */ 310 0x26, 0xFF, 0x07, /* LOGICAL_MAX (2047) */ 311 0x75, 0x0C, /* REPORT_SIZE (12) */ 312 0x95, 0x02, /* REPORT_COUNT (2) */ 313 0x09, 0x30, /* USAGE (X) */ 314 0x09, 0x31, /* USAGE (Y) */ 315 0x81, 0x06, /* INPUT */ 316 0x15, 0x81, /* LOGICAL_MIN (-127) */ 317 0x25, 0x7F, /* LOGICAL_MAX (127) */ 318 0x75, 0x08, /* REPORT_SIZE (8) */ 319 0x95, 0x01, /* REPORT_COUNT (1) */ 320 0x09, 0x38, /* USAGE (wheel) */ 321 0x81, 0x06, /* INPUT */ 322 0x05, 0x0C, /* USAGE_PAGE(consumer) */ 323 0x0A, 0x38, 0x02, /* USAGE(AC Pan) */ 324 0x95, 0x01, /* REPORT_COUNT (1) */ 325 0x81, 0x06, /* INPUT */ 326 0xC0, /* END_COLLECTION */ 327 0xC0, /* END_COLLECTION */ 328}; 329 330/* Mouse descriptor (2) for Bluetooth receiver, low-res hwheel, 12 buttons */ 331static const char mse_bluetooth_descriptor[] = { 332 0x05, 0x01, /* USAGE_PAGE (Generic Desktop) */ 333 0x09, 0x02, /* USAGE (Mouse) */ 334 0xA1, 0x01, /* COLLECTION (Application) */ 335 0x85, 0x02, /* REPORT_ID = 2 */ 336 0x09, 0x01, /* USAGE (pointer) */ 337 0xA1, 0x00, /* COLLECTION (physical) */ 338 0x05, 0x09, /* USAGE_PAGE (buttons) */ 339 0x19, 0x01, /* USAGE_MIN (1) */ 340 0x29, 0x08, /* USAGE_MAX (8) */ 341 0x15, 0x00, /* LOGICAL_MIN (0) */ 342 0x25, 0x01, /* LOGICAL_MAX (1) */ 343 0x95, 0x08, /* REPORT_COUNT (8) */ 344 0x75, 0x01, /* REPORT_SIZE (1) */ 345 0x81, 0x02, /* INPUT (data var abs) */ 346 0x05, 0x01, /* USAGE_PAGE (generic desktop) */ 347 0x16, 0x01, 0xF8, /* LOGICAL_MIN (-2047) */ 348 0x26, 0xFF, 0x07, /* LOGICAL_MAX (2047) */ 349 0x75, 0x0C, /* REPORT_SIZE (12) */ 350 0x95, 0x02, /* REPORT_COUNT (2) */ 351 0x09, 0x30, /* USAGE (X) */ 352 0x09, 0x31, /* USAGE (Y) */ 353 0x81, 0x06, /* INPUT */ 354 0x15, 0x81, /* LOGICAL_MIN (-127) */ 355 0x25, 0x7F, /* LOGICAL_MAX (127) */ 356 0x75, 0x08, /* REPORT_SIZE (8) */ 357 0x95, 0x01, /* REPORT_COUNT (1) */ 358 0x09, 0x38, /* USAGE (wheel) */ 359 0x81, 0x06, /* INPUT */ 360 0x05, 0x0C, /* USAGE_PAGE(consumer) */ 361 0x0A, 0x38, 0x02, /* USAGE(AC Pan) */ 362 0x15, 0xF9, /* LOGICAL_MIN (-7) */ 363 0x25, 0x07, /* LOGICAL_MAX (7) */ 364 0x75, 0x04, /* REPORT_SIZE (4) */ 365 0x95, 0x01, /* REPORT_COUNT (1) */ 366 0x81, 0x06, /* INPUT */ 367 0x05, 0x09, /* USAGE_PAGE (buttons) */ 368 0x19, 0x09, /* USAGE_MIN (9) */ 369 0x29, 0x0C, /* USAGE_MAX (12) */ 370 0x15, 0x00, /* LOGICAL_MIN (0) */ 371 0x25, 0x01, /* LOGICAL_MAX (1) */ 372 0x75, 0x01, /* REPORT_SIZE (1) */ 373 0x95, 0x04, /* REPORT_COUNT (4) */ 374 0x81, 0x02, /* INPUT (Data,Var,Abs) */ 375 0xC0, /* END_COLLECTION */ 376 0xC0, /* END_COLLECTION */ 377}; 378 379/* Mouse descriptor (5) for Bluetooth receiver, normal-res hwheel, 8 buttons */ 380static const char mse5_bluetooth_descriptor[] = { 381 0x05, 0x01, /* USAGE_PAGE (Generic Desktop) */ 382 0x09, 0x02, /* Usage (Mouse) */ 383 0xa1, 0x01, /* Collection (Application) */ 384 0x85, 0x05, /* Report ID (5) */ 385 0x09, 0x01, /* Usage (Pointer) */ 386 0xa1, 0x00, /* Collection (Physical) */ 387 0x05, 0x09, /* Usage Page (Button) */ 388 0x19, 0x01, /* Usage Minimum (1) */ 389 0x29, 0x08, /* Usage Maximum (8) */ 390 0x15, 0x00, /* Logical Minimum (0) */ 391 0x25, 0x01, /* Logical Maximum (1) */ 392 0x95, 0x08, /* Report Count (8) */ 393 0x75, 0x01, /* Report Size (1) */ 394 0x81, 0x02, /* Input (Data,Var,Abs) */ 395 0x05, 0x01, /* Usage Page (Generic Desktop) */ 396 0x16, 0x01, 0xf8, /* Logical Minimum (-2047) */ 397 0x26, 0xff, 0x07, /* Logical Maximum (2047) */ 398 0x75, 0x0c, /* Report Size (12) */ 399 0x95, 0x02, /* Report Count (2) */ 400 0x09, 0x30, /* Usage (X) */ 401 0x09, 0x31, /* Usage (Y) */ 402 0x81, 0x06, /* Input (Data,Var,Rel) */ 403 0x15, 0x81, /* Logical Minimum (-127) */ 404 0x25, 0x7f, /* Logical Maximum (127) */ 405 0x75, 0x08, /* Report Size (8) */ 406 0x95, 0x01, /* Report Count (1) */ 407 0x09, 0x38, /* Usage (Wheel) */ 408 0x81, 0x06, /* Input (Data,Var,Rel) */ 409 0x05, 0x0c, /* Usage Page (Consumer Devices) */ 410 0x0a, 0x38, 0x02, /* Usage (AC Pan) */ 411 0x15, 0x81, /* Logical Minimum (-127) */ 412 0x25, 0x7f, /* Logical Maximum (127) */ 413 0x75, 0x08, /* Report Size (8) */ 414 0x95, 0x01, /* Report Count (1) */ 415 0x81, 0x06, /* Input (Data,Var,Rel) */ 416 0xc0, /* End Collection */ 417 0xc0, /* End Collection */ 418}; 419 420/* Gaming Mouse descriptor (2) */ 421static const char mse_high_res_descriptor[] = { 422 0x05, 0x01, /* USAGE_PAGE (Generic Desktop) */ 423 0x09, 0x02, /* USAGE (Mouse) */ 424 0xA1, 0x01, /* COLLECTION (Application) */ 425 0x85, 0x02, /* REPORT_ID = 2 */ 426 0x09, 0x01, /* USAGE (pointer) */ 427 0xA1, 0x00, /* COLLECTION (physical) */ 428 0x05, 0x09, /* USAGE_PAGE (buttons) */ 429 0x19, 0x01, /* USAGE_MIN (1) */ 430 0x29, 0x10, /* USAGE_MAX (16) */ 431 0x15, 0x00, /* LOGICAL_MIN (0) */ 432 0x25, 0x01, /* LOGICAL_MAX (1) */ 433 0x95, 0x10, /* REPORT_COUNT (16) */ 434 0x75, 0x01, /* REPORT_SIZE (1) */ 435 0x81, 0x02, /* INPUT (data var abs) */ 436 0x05, 0x01, /* USAGE_PAGE (generic desktop) */ 437 0x16, 0x01, 0x80, /* LOGICAL_MIN (-32767) */ 438 0x26, 0xFF, 0x7F, /* LOGICAL_MAX (32767) */ 439 0x75, 0x10, /* REPORT_SIZE (16) */ 440 0x95, 0x02, /* REPORT_COUNT (2) */ 441 0x09, 0x30, /* USAGE (X) */ 442 0x09, 0x31, /* USAGE (Y) */ 443 0x81, 0x06, /* INPUT */ 444 0x15, 0x81, /* LOGICAL_MIN (-127) */ 445 0x25, 0x7F, /* LOGICAL_MAX (127) */ 446 0x75, 0x08, /* REPORT_SIZE (8) */ 447 0x95, 0x01, /* REPORT_COUNT (1) */ 448 0x09, 0x38, /* USAGE (wheel) */ 449 0x81, 0x06, /* INPUT */ 450 0x05, 0x0C, /* USAGE_PAGE(consumer) */ 451 0x0A, 0x38, 0x02, /* USAGE(AC Pan) */ 452 0x95, 0x01, /* REPORT_COUNT (1) */ 453 0x81, 0x06, /* INPUT */ 454 0xC0, /* END_COLLECTION */ 455 0xC0, /* END_COLLECTION */ 456}; 457 458/* Gaming Mouse descriptor with vendor data (2) */ 459static const char mse_high_res_ls_1_3_descriptor[] = { 460 0x05, 0x01, /* Usage Page (Generic Desktop) */ 461 0x09, 0x02, /* Usage (Mouse) */ 462 0xA1, 0x01, /* Collection (Application) */ 463 0x85, 0x02, /* Report ID (2) */ 464 0x09, 0x01, /* Usage (Pointer) */ 465 0xA1, 0x00, /* Collection (Physical) */ 466 0x95, 0x10, /* Report Count (16) */ 467 0x75, 0x01, /* Report Size (1) */ 468 0x15, 0x00, /* Logical Minimum (0) */ 469 0x25, 0x01, /* Logical Maximum (1) */ 470 0x05, 0x09, /* Usage Page (Button) */ 471 0x19, 0x01, /* Usage Minimum (0x01) */ 472 0x29, 0x10, /* Usage Maximum (0x10) */ 473 0x81, 0x02, /* Input (Data,Var,Abs) */ 474 0x95, 0x02, /* Report Count (2) */ 475 0x75, 0x10, /* Report Size (16) */ 476 0x16, 0x01, 0x80, /* Logical Minimum (-32767) */ 477 0x26, 0xFF, 0x7F, /* Logical Maximum (32767) */ 478 0x05, 0x01, /* Usage Page (Generic Desktop) */ 479 0x09, 0x30, /* Usage (X) */ 480 0x09, 0x31, /* Usage (Y) */ 481 0x81, 0x06, /* Input (Data,Var,Rel) */ 482 0x95, 0x01, /* Report Count (1) */ 483 0x75, 0x08, /* Report Size (8) */ 484 0x15, 0x81, /* Logical Minimum (-127) */ 485 0x25, 0x7F, /* Logical Maximum (127) */ 486 0x09, 0x38, /* Usage (Wheel) */ 487 0x81, 0x06, /* Input (Data,Var,Rel) */ 488 0x95, 0x01, /* Report Count (1) */ 489 0x05, 0x0C, /* Usage Page (Consumer) */ 490 0x0A, 0x38, 0x02, /* Usage (AC Pan) */ 491 0x81, 0x06, /* Input (Data,Var,Rel) */ 492 0xC0, /* End Collection */ 493 0x06, 0x00, 0xFF, /* Usage Page (Vendor Defined 0xFF00) */ 494 0x09, 0xF1, /* Usage (0xF1) */ 495 0x75, 0x08, /* Report Size (8) */ 496 0x95, 0x05, /* Report Count (5) */ 497 0x15, 0x00, /* Logical Minimum (0) */ 498 0x26, 0xFF, 0x00, /* Logical Maximum (255) */ 499 0x81, 0x00, /* Input (Data,Array,Abs) */ 500 0xC0, /* End Collection */ 501}; 502 503/* Consumer Control descriptor (3) */ 504static const char consumer_descriptor[] = { 505 0x05, 0x0C, /* USAGE_PAGE (Consumer Devices) */ 506 0x09, 0x01, /* USAGE (Consumer Control) */ 507 0xA1, 0x01, /* COLLECTION (Application) */ 508 0x85, 0x03, /* REPORT_ID = 3 */ 509 0x75, 0x10, /* REPORT_SIZE (16) */ 510 0x95, 0x02, /* REPORT_COUNT (2) */ 511 0x15, 0x01, /* LOGICAL_MIN (1) */ 512 0x26, 0xFF, 0x02, /* LOGICAL_MAX (767) */ 513 0x19, 0x01, /* USAGE_MIN (1) */ 514 0x2A, 0xFF, 0x02, /* USAGE_MAX (767) */ 515 0x81, 0x00, /* INPUT (Data Ary Abs) */ 516 0xC0, /* END_COLLECTION */ 517}; /* */ 518 519/* System control descriptor (4) */ 520static const char syscontrol_descriptor[] = { 521 0x05, 0x01, /* USAGE_PAGE (Generic Desktop) */ 522 0x09, 0x80, /* USAGE (System Control) */ 523 0xA1, 0x01, /* COLLECTION (Application) */ 524 0x85, 0x04, /* REPORT_ID = 4 */ 525 0x75, 0x02, /* REPORT_SIZE (2) */ 526 0x95, 0x01, /* REPORT_COUNT (1) */ 527 0x15, 0x01, /* LOGICAL_MIN (1) */ 528 0x25, 0x03, /* LOGICAL_MAX (3) */ 529 0x09, 0x82, /* USAGE (System Sleep) */ 530 0x09, 0x81, /* USAGE (System Power Down) */ 531 0x09, 0x83, /* USAGE (System Wake Up) */ 532 0x81, 0x60, /* INPUT (Data Ary Abs NPrf Null) */ 533 0x75, 0x06, /* REPORT_SIZE (6) */ 534 0x81, 0x03, /* INPUT (Cnst Var Abs) */ 535 0xC0, /* END_COLLECTION */ 536}; 537 538/* Media descriptor (8) */ 539static const char media_descriptor[] = { 540 0x06, 0xbc, 0xff, /* Usage Page 0xffbc */ 541 0x09, 0x88, /* Usage 0x0088 */ 542 0xa1, 0x01, /* BeginCollection */ 543 0x85, 0x08, /* Report ID 8 */ 544 0x19, 0x01, /* Usage Min 0x0001 */ 545 0x29, 0xff, /* Usage Max 0x00ff */ 546 0x15, 0x01, /* Logical Min 1 */ 547 0x26, 0xff, 0x00, /* Logical Max 255 */ 548 0x75, 0x08, /* Report Size 8 */ 549 0x95, 0x01, /* Report Count 1 */ 550 0x81, 0x00, /* Input */ 551 0xc0, /* EndCollection */ 552}; /* */ 553 554/* HIDPP descriptor */ 555static const char hidpp_descriptor[] = { 556 0x06, 0x00, 0xff, /* Usage Page (Vendor Defined Page 1) */ 557 0x09, 0x01, /* Usage (Vendor Usage 1) */ 558 0xa1, 0x01, /* Collection (Application) */ 559 0x85, 0x10, /* Report ID (16) */ 560 0x75, 0x08, /* Report Size (8) */ 561 0x95, 0x06, /* Report Count (6) */ 562 0x15, 0x00, /* Logical Minimum (0) */ 563 0x26, 0xff, 0x00, /* Logical Maximum (255) */ 564 0x09, 0x01, /* Usage (Vendor Usage 1) */ 565 0x81, 0x00, /* Input (Data,Arr,Abs) */ 566 0x09, 0x01, /* Usage (Vendor Usage 1) */ 567 0x91, 0x00, /* Output (Data,Arr,Abs) */ 568 0xc0, /* End Collection */ 569 0x06, 0x00, 0xff, /* Usage Page (Vendor Defined Page 1) */ 570 0x09, 0x02, /* Usage (Vendor Usage 2) */ 571 0xa1, 0x01, /* Collection (Application) */ 572 0x85, 0x11, /* Report ID (17) */ 573 0x75, 0x08, /* Report Size (8) */ 574 0x95, 0x13, /* Report Count (19) */ 575 0x15, 0x00, /* Logical Minimum (0) */ 576 0x26, 0xff, 0x00, /* Logical Maximum (255) */ 577 0x09, 0x02, /* Usage (Vendor Usage 2) */ 578 0x81, 0x00, /* Input (Data,Arr,Abs) */ 579 0x09, 0x02, /* Usage (Vendor Usage 2) */ 580 0x91, 0x00, /* Output (Data,Arr,Abs) */ 581 0xc0, /* End Collection */ 582 0x06, 0x00, 0xff, /* Usage Page (Vendor Defined Page 1) */ 583 0x09, 0x04, /* Usage (Vendor Usage 0x04) */ 584 0xa1, 0x01, /* Collection (Application) */ 585 0x85, 0x20, /* Report ID (32) */ 586 0x75, 0x08, /* Report Size (8) */ 587 0x95, 0x0e, /* Report Count (14) */ 588 0x15, 0x00, /* Logical Minimum (0) */ 589 0x26, 0xff, 0x00, /* Logical Maximum (255) */ 590 0x09, 0x41, /* Usage (Vendor Usage 0x41) */ 591 0x81, 0x00, /* Input (Data,Arr,Abs) */ 592 0x09, 0x41, /* Usage (Vendor Usage 0x41) */ 593 0x91, 0x00, /* Output (Data,Arr,Abs) */ 594 0x85, 0x21, /* Report ID (33) */ 595 0x95, 0x1f, /* Report Count (31) */ 596 0x15, 0x00, /* Logical Minimum (0) */ 597 0x26, 0xff, 0x00, /* Logical Maximum (255) */ 598 0x09, 0x42, /* Usage (Vendor Usage 0x42) */ 599 0x81, 0x00, /* Input (Data,Arr,Abs) */ 600 0x09, 0x42, /* Usage (Vendor Usage 0x42) */ 601 0x91, 0x00, /* Output (Data,Arr,Abs) */ 602 0xc0, /* End Collection */ 603}; 604 605/* Maximum size of all defined hid reports in bytes (including report id) */ 606#define MAX_REPORT_SIZE 8 607 608/* Make sure the largest of each descriptor type is present here */ 609#define MAX_RDESC_SIZE \ 610 (sizeof(kbd_lightspeed_1_3_descriptor) +\ 611 sizeof(mse_bluetooth_descriptor) + \ 612 sizeof(mse5_bluetooth_descriptor) + \ 613 sizeof(consumer_descriptor) + \ 614 sizeof(syscontrol_descriptor) + \ 615 sizeof(media_descriptor) + \ 616 sizeof(hidpp_descriptor)) 617 618/* Number of possible hid report types that can be created by this driver. 619 * 620 * Right now, RF report types have the same report types (or report id's) 621 * than the hid report created from those RF reports. In the future 622 * this doesnt have to be true. 623 * 624 * For instance, RF report type 0x01 which has a size of 8 bytes, corresponds 625 * to hid report id 0x01, this is standard keyboard. Same thing applies to mice 626 * reports and consumer control, etc. If a new RF report is created, it doesn't 627 * has to have the same report id as its corresponding hid report, so an 628 * translation may have to take place for future report types. 629 */ 630#define NUMBER_OF_HID_REPORTS 32 631static const u8 hid_reportid_size_map[NUMBER_OF_HID_REPORTS] = { 632 [1] = 8, /* Standard keyboard */ 633 [2] = 8, /* Standard mouse */ 634 [3] = 5, /* Consumer control */ 635 [4] = 2, /* System control */ 636 [8] = 2, /* Media Center */ 637}; 638 639 640#define LOGITECH_DJ_INTERFACE_NUMBER 0x02 641 642static const struct hid_ll_driver logi_dj_ll_driver; 643 644static int logi_dj_recv_query_paired_devices(struct dj_receiver_dev *djrcv_dev); 645static int logi_dj_recv_switch_to_dj_mode(struct dj_receiver_dev *djrcv_dev, 646 unsigned int timeout); 647static void delayedwork_callback(struct work_struct *work); 648 649static LIST_HEAD(dj_hdev_list); 650static DEFINE_MUTEX(dj_hdev_list_lock); 651 652static bool recvr_type_is_bluetooth(enum recvr_type type) 653{ 654 return type == recvr_type_bluetooth || type == recvr_type_dinovo; 655} 656 657/* 658 * dj/HID++ receivers are really a single logical entity, but for BIOS/Windows 659 * compatibility they have multiple USB interfaces. On HID++ receivers we need 660 * to listen for input reports on both interfaces. The functions below are used 661 * to create a single struct dj_receiver_dev for all interfaces belonging to 662 * a single USB-device / receiver. 663 */ 664static struct dj_receiver_dev *dj_find_receiver_dev(struct hid_device *hdev, 665 enum recvr_type type) 666{ 667 struct dj_receiver_dev *djrcv_dev; 668 char sep; 669 670 /* 671 * The bluetooth receiver contains a built-in hub and has separate 672 * USB-devices for the keyboard and mouse interfaces. 673 */ 674 sep = recvr_type_is_bluetooth(type) ? '.' : '/'; 675 676 /* Try to find an already-probed interface from the same device */ 677 list_for_each_entry(djrcv_dev, &dj_hdev_list, list) { 678 if (djrcv_dev->mouse && 679 hid_compare_device_paths(hdev, djrcv_dev->mouse, sep)) { 680 kref_get(&djrcv_dev->kref); 681 return djrcv_dev; 682 } 683 if (djrcv_dev->keyboard && 684 hid_compare_device_paths(hdev, djrcv_dev->keyboard, sep)) { 685 kref_get(&djrcv_dev->kref); 686 return djrcv_dev; 687 } 688 if (djrcv_dev->hidpp && 689 hid_compare_device_paths(hdev, djrcv_dev->hidpp, sep)) { 690 kref_get(&djrcv_dev->kref); 691 return djrcv_dev; 692 } 693 } 694 695 return NULL; 696} 697 698static void dj_release_receiver_dev(struct kref *kref) 699{ 700 struct dj_receiver_dev *djrcv_dev = container_of(kref, struct dj_receiver_dev, kref); 701 702 list_del(&djrcv_dev->list); 703 kfifo_free(&djrcv_dev->notif_fifo); 704 kfree(djrcv_dev); 705} 706 707static void dj_put_receiver_dev(struct hid_device *hdev) 708{ 709 struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev); 710 711 mutex_lock(&dj_hdev_list_lock); 712 713 if (djrcv_dev->mouse == hdev) 714 djrcv_dev->mouse = NULL; 715 if (djrcv_dev->keyboard == hdev) 716 djrcv_dev->keyboard = NULL; 717 if (djrcv_dev->hidpp == hdev) 718 djrcv_dev->hidpp = NULL; 719 720 kref_put(&djrcv_dev->kref, dj_release_receiver_dev); 721 722 mutex_unlock(&dj_hdev_list_lock); 723} 724 725static struct dj_receiver_dev *dj_get_receiver_dev(struct hid_device *hdev, 726 enum recvr_type type, 727 unsigned int application, 728 bool is_hidpp) 729{ 730 struct dj_receiver_dev *djrcv_dev; 731 732 mutex_lock(&dj_hdev_list_lock); 733 734 djrcv_dev = dj_find_receiver_dev(hdev, type); 735 if (!djrcv_dev) { 736 djrcv_dev = kzalloc(sizeof(*djrcv_dev), GFP_KERNEL); 737 if (!djrcv_dev) 738 goto out; 739 740 INIT_WORK(&djrcv_dev->work, delayedwork_callback); 741 spin_lock_init(&djrcv_dev->lock); 742 if (kfifo_alloc(&djrcv_dev->notif_fifo, 743 DJ_MAX_NUMBER_NOTIFS * sizeof(struct dj_workitem), 744 GFP_KERNEL)) { 745 kfree(djrcv_dev); 746 djrcv_dev = NULL; 747 goto out; 748 } 749 kref_init(&djrcv_dev->kref); 750 list_add_tail(&djrcv_dev->list, &dj_hdev_list); 751 djrcv_dev->last_query = jiffies; 752 djrcv_dev->type = type; 753 } 754 755 if (application == HID_GD_KEYBOARD) 756 djrcv_dev->keyboard = hdev; 757 if (application == HID_GD_MOUSE) 758 djrcv_dev->mouse = hdev; 759 if (is_hidpp) 760 djrcv_dev->hidpp = hdev; 761 762 hid_set_drvdata(hdev, djrcv_dev); 763out: 764 mutex_unlock(&dj_hdev_list_lock); 765 return djrcv_dev; 766} 767 768static void logi_dj_recv_destroy_djhid_device(struct dj_receiver_dev *djrcv_dev, 769 struct dj_workitem *workitem) 770{ 771 /* Called in delayed work context */ 772 struct dj_device *dj_dev; 773 unsigned long flags; 774 775 spin_lock_irqsave(&djrcv_dev->lock, flags); 776 dj_dev = djrcv_dev->paired_dj_devices[workitem->device_index]; 777 djrcv_dev->paired_dj_devices[workitem->device_index] = NULL; 778 spin_unlock_irqrestore(&djrcv_dev->lock, flags); 779 780 if (dj_dev != NULL) { 781 hid_destroy_device(dj_dev->hdev); 782 kfree(dj_dev); 783 } else { 784 hid_err(djrcv_dev->hidpp, "%s: can't destroy a NULL device\n", 785 __func__); 786 } 787} 788 789static void logi_dj_recv_add_djhid_device(struct dj_receiver_dev *djrcv_dev, 790 struct dj_workitem *workitem) 791{ 792 /* Called in delayed work context */ 793 struct hid_device *djrcv_hdev = djrcv_dev->hidpp; 794 struct hid_device *dj_hiddev; 795 struct dj_device *dj_dev; 796 u8 device_index = workitem->device_index; 797 unsigned long flags; 798 799 /* Device index goes from 1 to 6, we need 3 bytes to store the 800 * semicolon, the index, and a null terminator 801 */ 802 unsigned char tmpstr[3]; 803 804 /* We are the only one ever adding a device, no need to lock */ 805 if (djrcv_dev->paired_dj_devices[device_index]) { 806 /* The device is already known. No need to reallocate it. */ 807 dbg_hid("%s: device is already known\n", __func__); 808 return; 809 } 810 811 dj_hiddev = hid_allocate_device(); 812 if (IS_ERR(dj_hiddev)) { 813 hid_err(djrcv_hdev, "%s: hid_allocate_dev failed\n", __func__); 814 return; 815 } 816 817 dj_hiddev->ll_driver = &logi_dj_ll_driver; 818 819 dj_hiddev->dev.parent = &djrcv_hdev->dev; 820 dj_hiddev->bus = BUS_USB; 821 dj_hiddev->vendor = djrcv_hdev->vendor; 822 dj_hiddev->product = (workitem->quad_id_msb << 8) | 823 workitem->quad_id_lsb; 824 if (workitem->device_type) { 825 const char *type_str = "Device"; 826 827 switch (workitem->device_type) { 828 case 0x01: type_str = "Keyboard"; break; 829 case 0x02: type_str = "Mouse"; break; 830 case 0x03: type_str = "Numpad"; break; 831 case 0x04: type_str = "Presenter"; break; 832 case 0x07: type_str = "Remote Control"; break; 833 case 0x08: type_str = "Trackball"; break; 834 case 0x09: type_str = "Touchpad"; break; 835 } 836 snprintf(dj_hiddev->name, sizeof(dj_hiddev->name), 837 "Logitech Wireless %s PID:%04x", 838 type_str, dj_hiddev->product); 839 } else { 840 snprintf(dj_hiddev->name, sizeof(dj_hiddev->name), 841 "Logitech Wireless Device PID:%04x", 842 dj_hiddev->product); 843 } 844 845 if (djrcv_dev->type == recvr_type_27mhz) 846 dj_hiddev->group = HID_GROUP_LOGITECH_27MHZ_DEVICE; 847 else 848 dj_hiddev->group = HID_GROUP_LOGITECH_DJ_DEVICE; 849 850 memcpy(dj_hiddev->phys, djrcv_hdev->phys, sizeof(djrcv_hdev->phys)); 851 snprintf(tmpstr, sizeof(tmpstr), ":%d", device_index); 852 strlcat(dj_hiddev->phys, tmpstr, sizeof(dj_hiddev->phys)); 853 854 dj_dev = kzalloc(sizeof(struct dj_device), GFP_KERNEL); 855 856 if (!dj_dev) { 857 hid_err(djrcv_hdev, "%s: failed allocating dj_dev\n", __func__); 858 goto dj_device_allocate_fail; 859 } 860 861 dj_dev->reports_supported = workitem->reports_supported; 862 dj_dev->hdev = dj_hiddev; 863 dj_dev->dj_receiver_dev = djrcv_dev; 864 dj_dev->device_index = device_index; 865 dj_hiddev->driver_data = dj_dev; 866 867 spin_lock_irqsave(&djrcv_dev->lock, flags); 868 djrcv_dev->paired_dj_devices[device_index] = dj_dev; 869 spin_unlock_irqrestore(&djrcv_dev->lock, flags); 870 871 if (hid_add_device(dj_hiddev)) { 872 hid_err(djrcv_hdev, "%s: failed adding dj_device\n", __func__); 873 goto hid_add_device_fail; 874 } 875 876 return; 877 878hid_add_device_fail: 879 spin_lock_irqsave(&djrcv_dev->lock, flags); 880 djrcv_dev->paired_dj_devices[device_index] = NULL; 881 spin_unlock_irqrestore(&djrcv_dev->lock, flags); 882 kfree(dj_dev); 883dj_device_allocate_fail: 884 hid_destroy_device(dj_hiddev); 885} 886 887static void delayedwork_callback(struct work_struct *work) 888{ 889 struct dj_receiver_dev *djrcv_dev = 890 container_of(work, struct dj_receiver_dev, work); 891 892 struct dj_workitem workitem; 893 unsigned long flags; 894 int count; 895 896 dbg_hid("%s\n", __func__); 897 898 spin_lock_irqsave(&djrcv_dev->lock, flags); 899 900 /* 901 * Since we attach to multiple interfaces, we may get scheduled before 902 * we are bound to the HID++ interface, catch this. 903 */ 904 if (!djrcv_dev->ready) { 905 pr_warn("%s: delayedwork queued before hidpp interface was enumerated\n", 906 __func__); 907 spin_unlock_irqrestore(&djrcv_dev->lock, flags); 908 return; 909 } 910 911 count = kfifo_out(&djrcv_dev->notif_fifo, &workitem, sizeof(workitem)); 912 913 if (count != sizeof(workitem)) { 914 spin_unlock_irqrestore(&djrcv_dev->lock, flags); 915 return; 916 } 917 918 if (!kfifo_is_empty(&djrcv_dev->notif_fifo)) 919 schedule_work(&djrcv_dev->work); 920 921 spin_unlock_irqrestore(&djrcv_dev->lock, flags); 922 923 switch (workitem.type) { 924 case WORKITEM_TYPE_PAIRED: 925 logi_dj_recv_add_djhid_device(djrcv_dev, &workitem); 926 break; 927 case WORKITEM_TYPE_UNPAIRED: 928 logi_dj_recv_destroy_djhid_device(djrcv_dev, &workitem); 929 break; 930 case WORKITEM_TYPE_UNKNOWN: 931 if (!djrcv_dev->dj_mode) 932 logi_dj_recv_switch_to_dj_mode(djrcv_dev, 0); 933 934 logi_dj_recv_query_paired_devices(djrcv_dev); 935 break; 936 case WORKITEM_TYPE_EMPTY: 937 dbg_hid("%s: device list is empty\n", __func__); 938 break; 939 } 940} 941 942/* 943 * Sometimes we receive reports for which we do not have a paired dj_device 944 * associated with the device_index or report-type to forward the report to. 945 * This means that the original "device paired" notification corresponding 946 * to the dj_device never arrived to this driver. Possible reasons for this are: 947 * 1) hid-core discards all packets coming from a device during probe(). 948 * 2) if the receiver is plugged into a KVM switch then the pairing reports 949 * are only forwarded to it if the focus is on this PC. 950 * This function deals with this by re-asking the receiver for the list of 951 * connected devices in the delayed work callback. 952 * This function MUST be called with djrcv->lock held. 953 */ 954static void logi_dj_recv_queue_unknown_work(struct dj_receiver_dev *djrcv_dev) 955{ 956 struct dj_workitem workitem = { .type = WORKITEM_TYPE_UNKNOWN }; 957 958 /* Rate limit queries done because of unhandled reports to 2/sec */ 959 if (time_before(jiffies, djrcv_dev->last_query + HZ / 2)) 960 return; 961 962 kfifo_in(&djrcv_dev->notif_fifo, &workitem, sizeof(workitem)); 963 schedule_work(&djrcv_dev->work); 964} 965 966static void logi_dj_recv_queue_notification(struct dj_receiver_dev *djrcv_dev, 967 struct dj_report *dj_report) 968{ 969 /* We are called from atomic context (tasklet && djrcv->lock held) */ 970 struct dj_workitem workitem = { 971 .device_index = dj_report->device_index, 972 }; 973 974 switch (dj_report->report_type) { 975 case REPORT_TYPE_NOTIF_DEVICE_PAIRED: 976 workitem.type = WORKITEM_TYPE_PAIRED; 977 if (dj_report->report_params[DEVICE_PAIRED_PARAM_SPFUNCTION] & 978 SPFUNCTION_DEVICE_LIST_EMPTY) { 979 workitem.type = WORKITEM_TYPE_EMPTY; 980 break; 981 } 982 fallthrough; 983 case REPORT_TYPE_NOTIF_DEVICE_UNPAIRED: 984 workitem.quad_id_msb = 985 dj_report->report_params[DEVICE_PAIRED_PARAM_EQUAD_ID_MSB]; 986 workitem.quad_id_lsb = 987 dj_report->report_params[DEVICE_PAIRED_PARAM_EQUAD_ID_LSB]; 988 workitem.reports_supported = get_unaligned_le32( 989 dj_report->report_params + 990 DEVICE_PAIRED_RF_REPORT_TYPE); 991 workitem.reports_supported |= HIDPP; 992 if (dj_report->report_type == REPORT_TYPE_NOTIF_DEVICE_UNPAIRED) 993 workitem.type = WORKITEM_TYPE_UNPAIRED; 994 break; 995 default: 996 logi_dj_recv_queue_unknown_work(djrcv_dev); 997 return; 998 } 999 1000 kfifo_in(&djrcv_dev->notif_fifo, &workitem, sizeof(workitem)); 1001 schedule_work(&djrcv_dev->work); 1002} 1003 1004/* 1005 * Some quad/bluetooth keyboards have a builtin touchpad in this case we see 1006 * only 1 paired device with a device_type of REPORT_TYPE_KEYBOARD. For the 1007 * touchpad to work we must also forward mouse input reports to the dj_hiddev 1008 * created for the keyboard (instead of forwarding them to a second paired 1009 * device with a device_type of REPORT_TYPE_MOUSE as we normally would). 1010 * 1011 * On Dinovo receivers the keyboard's touchpad and an optional paired actual 1012 * mouse send separate input reports, INPUT(2) aka STD_MOUSE for the mouse 1013 * and INPUT(5) aka KBD_MOUSE for the keyboard's touchpad. 1014 * 1015 * On MX5x00 receivers (which can also be paired with a Dinovo keyboard) 1016 * INPUT(2) is used for both an optional paired actual mouse and for the 1017 * keyboard's touchpad. 1018 */ 1019static const u16 kbd_builtin_touchpad_ids[] = { 1020 0xb309, /* Dinovo Edge */ 1021 0xb30c, /* Dinovo Mini */ 1022}; 1023 1024static void logi_hidpp_dev_conn_notif_equad(struct hid_device *hdev, 1025 struct hidpp_event *hidpp_report, 1026 struct dj_workitem *workitem) 1027{ 1028 struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev); 1029 int i, id; 1030 1031 workitem->type = WORKITEM_TYPE_PAIRED; 1032 workitem->device_type = hidpp_report->params[HIDPP_PARAM_DEVICE_INFO] & 1033 HIDPP_DEVICE_TYPE_MASK; 1034 workitem->quad_id_msb = hidpp_report->params[HIDPP_PARAM_EQUAD_MSB]; 1035 workitem->quad_id_lsb = hidpp_report->params[HIDPP_PARAM_EQUAD_LSB]; 1036 switch (workitem->device_type) { 1037 case REPORT_TYPE_KEYBOARD: 1038 workitem->reports_supported |= STD_KEYBOARD | MULTIMEDIA | 1039 POWER_KEYS | MEDIA_CENTER | 1040 HIDPP; 1041 id = (workitem->quad_id_msb << 8) | workitem->quad_id_lsb; 1042 for (i = 0; i < ARRAY_SIZE(kbd_builtin_touchpad_ids); i++) { 1043 if (id == kbd_builtin_touchpad_ids[i]) { 1044 if (djrcv_dev->type == recvr_type_dinovo) 1045 workitem->reports_supported |= KBD_MOUSE; 1046 else 1047 workitem->reports_supported |= STD_MOUSE; 1048 break; 1049 } 1050 } 1051 break; 1052 case REPORT_TYPE_MOUSE: 1053 workitem->reports_supported |= STD_MOUSE | HIDPP | MULTIMEDIA; 1054 break; 1055 } 1056} 1057 1058static void logi_hidpp_dev_conn_notif_27mhz(struct hid_device *hdev, 1059 struct hidpp_event *hidpp_report, 1060 struct dj_workitem *workitem) 1061{ 1062 workitem->type = WORKITEM_TYPE_PAIRED; 1063 workitem->quad_id_lsb = hidpp_report->params[HIDPP_PARAM_27MHZ_DEVID]; 1064 switch (hidpp_report->device_index) { 1065 case 1: /* Index 1 is always a mouse */ 1066 case 2: /* Index 2 is always a mouse */ 1067 workitem->device_type = HIDPP_DEVICE_TYPE_MOUSE; 1068 workitem->reports_supported |= STD_MOUSE | HIDPP; 1069 break; 1070 case 3: /* Index 3 is always the keyboard */ 1071 if (hidpp_report->params[HIDPP_PARAM_DEVICE_INFO] & HIDPP_27MHZ_SECURE_MASK) { 1072 hid_info(hdev, "Keyboard connection is encrypted\n"); 1073 } else { 1074 hid_warn(hdev, "Keyboard events are send over the air in plain-text / unencrypted\n"); 1075 hid_warn(hdev, "See: https://gitlab.freedesktop.org/jwrdegoede/logitech-27mhz-keyboard-encryption-setup/\n"); 1076 } 1077 fallthrough; 1078 case 4: /* Index 4 is used for an optional separate numpad */ 1079 workitem->device_type = HIDPP_DEVICE_TYPE_KEYBOARD; 1080 workitem->reports_supported |= STD_KEYBOARD | MULTIMEDIA | 1081 POWER_KEYS | HIDPP; 1082 break; 1083 default: 1084 hid_warn(hdev, "%s: unexpected device-index %d", __func__, 1085 hidpp_report->device_index); 1086 } 1087} 1088 1089static void logi_hidpp_recv_queue_notif(struct hid_device *hdev, 1090 struct hidpp_event *hidpp_report) 1091{ 1092 /* We are called from atomic context (tasklet && djrcv->lock held) */ 1093 struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev); 1094 const char *device_type = "UNKNOWN"; 1095 struct dj_workitem workitem = { 1096 .type = WORKITEM_TYPE_EMPTY, 1097 .device_index = hidpp_report->device_index, 1098 }; 1099 1100 switch (hidpp_report->params[HIDPP_PARAM_PROTO_TYPE]) { 1101 case 0x01: 1102 device_type = "Bluetooth"; 1103 /* Bluetooth connect packet contents is the same as (e)QUAD */ 1104 logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem); 1105 if (!(hidpp_report->params[HIDPP_PARAM_DEVICE_INFO] & 1106 HIDPP_MANUFACTURER_MASK)) { 1107 hid_info(hdev, "Non Logitech device connected on slot %d\n", 1108 hidpp_report->device_index); 1109 workitem.reports_supported &= ~HIDPP; 1110 } 1111 break; 1112 case 0x02: 1113 device_type = "27 Mhz"; 1114 logi_hidpp_dev_conn_notif_27mhz(hdev, hidpp_report, &workitem); 1115 break; 1116 case 0x03: 1117 device_type = "QUAD or eQUAD"; 1118 logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem); 1119 break; 1120 case 0x04: 1121 device_type = "eQUAD step 4 DJ"; 1122 logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem); 1123 break; 1124 case 0x05: 1125 device_type = "DFU Lite"; 1126 break; 1127 case 0x06: 1128 device_type = "eQUAD step 4 Lite"; 1129 logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem); 1130 break; 1131 case 0x07: 1132 device_type = "eQUAD step 4 Gaming"; 1133 logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem); 1134 workitem.reports_supported |= STD_KEYBOARD; 1135 break; 1136 case 0x08: 1137 device_type = "eQUAD step 4 for gamepads"; 1138 break; 1139 case 0x0a: 1140 device_type = "eQUAD nano Lite"; 1141 logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem); 1142 break; 1143 case 0x0c: 1144 device_type = "eQUAD Lightspeed 1"; 1145 logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem); 1146 workitem.reports_supported |= STD_KEYBOARD; 1147 break; 1148 case 0x0d: 1149 device_type = "eQUAD Lightspeed 1.1"; 1150 logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem); 1151 workitem.reports_supported |= STD_KEYBOARD; 1152 break; 1153 case 0x0f: 1154 case 0x11: 1155 device_type = "eQUAD Lightspeed 1.2"; 1156 logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem); 1157 workitem.reports_supported |= STD_KEYBOARD; 1158 break; 1159 } 1160 1161 /* custom receiver device (eg. powerplay) */ 1162 if (hidpp_report->device_index == 7) { 1163 workitem.reports_supported |= HIDPP; 1164 } 1165 1166 if (workitem.type == WORKITEM_TYPE_EMPTY) { 1167 hid_warn(hdev, 1168 "unusable device of type %s (0x%02x) connected on slot %d", 1169 device_type, 1170 hidpp_report->params[HIDPP_PARAM_PROTO_TYPE], 1171 hidpp_report->device_index); 1172 return; 1173 } 1174 1175 hid_info(hdev, "device of type %s (0x%02x) connected on slot %d", 1176 device_type, hidpp_report->params[HIDPP_PARAM_PROTO_TYPE], 1177 hidpp_report->device_index); 1178 1179 kfifo_in(&djrcv_dev->notif_fifo, &workitem, sizeof(workitem)); 1180 schedule_work(&djrcv_dev->work); 1181} 1182 1183static void logi_dj_recv_forward_null_report(struct dj_receiver_dev *djrcv_dev, 1184 struct dj_report *dj_report) 1185{ 1186 /* We are called from atomic context (tasklet && djrcv->lock held) */ 1187 unsigned int i; 1188 u8 reportbuffer[MAX_REPORT_SIZE]; 1189 struct dj_device *djdev; 1190 1191 djdev = djrcv_dev->paired_dj_devices[dj_report->device_index]; 1192 1193 memset(reportbuffer, 0, sizeof(reportbuffer)); 1194 1195 for (i = 0; i < NUMBER_OF_HID_REPORTS; i++) { 1196 if (djdev->reports_supported & (1 << i)) { 1197 reportbuffer[0] = i; 1198 if (hid_input_report(djdev->hdev, 1199 HID_INPUT_REPORT, 1200 reportbuffer, 1201 hid_reportid_size_map[i], 1)) { 1202 dbg_hid("hid_input_report error sending null " 1203 "report\n"); 1204 } 1205 } 1206 } 1207} 1208 1209static void logi_dj_recv_forward_dj(struct dj_receiver_dev *djrcv_dev, 1210 struct dj_report *dj_report) 1211{ 1212 /* We are called from atomic context (tasklet && djrcv->lock held) */ 1213 struct dj_device *dj_device; 1214 1215 dj_device = djrcv_dev->paired_dj_devices[dj_report->device_index]; 1216 1217 if ((dj_report->report_type > ARRAY_SIZE(hid_reportid_size_map) - 1) || 1218 (hid_reportid_size_map[dj_report->report_type] == 0)) { 1219 dbg_hid("invalid report type:%x\n", dj_report->report_type); 1220 return; 1221 } 1222 1223 if (hid_input_report(dj_device->hdev, 1224 HID_INPUT_REPORT, &dj_report->report_type, 1225 hid_reportid_size_map[dj_report->report_type], 1)) { 1226 dbg_hid("hid_input_report error\n"); 1227 } 1228} 1229 1230static void logi_dj_recv_forward_report(struct dj_device *dj_dev, u8 *data, 1231 int size) 1232{ 1233 /* We are called from atomic context (tasklet && djrcv->lock held) */ 1234 if (hid_input_report(dj_dev->hdev, HID_INPUT_REPORT, data, size, 1)) 1235 dbg_hid("hid_input_report error\n"); 1236} 1237 1238static void logi_dj_recv_forward_input_report(struct hid_device *hdev, 1239 u8 *data, int size) 1240{ 1241 struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev); 1242 struct dj_device *dj_dev; 1243 unsigned long flags; 1244 u8 report = data[0]; 1245 int i; 1246 1247 if (report > REPORT_TYPE_RFREPORT_LAST) { 1248 hid_err(hdev, "Unexpected input report number %d\n", report); 1249 return; 1250 } 1251 1252 spin_lock_irqsave(&djrcv_dev->lock, flags); 1253 for (i = 0; i < (DJ_MAX_PAIRED_DEVICES + DJ_DEVICE_INDEX_MIN); i++) { 1254 dj_dev = djrcv_dev->paired_dj_devices[i]; 1255 if (dj_dev && (dj_dev->reports_supported & BIT(report))) { 1256 logi_dj_recv_forward_report(dj_dev, data, size); 1257 spin_unlock_irqrestore(&djrcv_dev->lock, flags); 1258 return; 1259 } 1260 } 1261 1262 logi_dj_recv_queue_unknown_work(djrcv_dev); 1263 spin_unlock_irqrestore(&djrcv_dev->lock, flags); 1264 1265 dbg_hid("No dj-devs handling input report number %d\n", report); 1266} 1267 1268static int logi_dj_recv_send_report(struct dj_receiver_dev *djrcv_dev, 1269 struct dj_report *dj_report) 1270{ 1271 struct hid_device *hdev = djrcv_dev->hidpp; 1272 struct hid_report *report; 1273 struct hid_report_enum *output_report_enum; 1274 u8 *data = (u8 *)(&dj_report->device_index); 1275 unsigned int i; 1276 1277 output_report_enum = &hdev->report_enum[HID_OUTPUT_REPORT]; 1278 report = output_report_enum->report_id_hash[REPORT_ID_DJ_SHORT]; 1279 1280 if (!report) { 1281 hid_err(hdev, "%s: unable to find dj report\n", __func__); 1282 return -ENODEV; 1283 } 1284 1285 for (i = 0; i < DJREPORT_SHORT_LENGTH - 1; i++) 1286 report->field[0]->value[i] = data[i]; 1287 1288 hid_hw_request(hdev, report, HID_REQ_SET_REPORT); 1289 1290 return 0; 1291} 1292 1293static int logi_dj_recv_query_hidpp_devices(struct dj_receiver_dev *djrcv_dev) 1294{ 1295 static const u8 template[] = { 1296 REPORT_ID_HIDPP_SHORT, 1297 HIDPP_RECEIVER_INDEX, 1298 HIDPP_SET_REGISTER, 1299 HIDPP_REG_CONNECTION_STATE, 1300 HIDPP_FAKE_DEVICE_ARRIVAL, 1301 0x00, 0x00 1302 }; 1303 u8 *hidpp_report; 1304 int retval; 1305 1306 hidpp_report = kmemdup(template, sizeof(template), GFP_KERNEL); 1307 if (!hidpp_report) 1308 return -ENOMEM; 1309 1310 retval = hid_hw_raw_request(djrcv_dev->hidpp, 1311 REPORT_ID_HIDPP_SHORT, 1312 hidpp_report, sizeof(template), 1313 HID_OUTPUT_REPORT, 1314 HID_REQ_SET_REPORT); 1315 1316 kfree(hidpp_report); 1317 return (retval < 0) ? retval : 0; 1318} 1319 1320static int logi_dj_recv_query_paired_devices(struct dj_receiver_dev *djrcv_dev) 1321{ 1322 struct dj_report *dj_report; 1323 int retval; 1324 1325 djrcv_dev->last_query = jiffies; 1326 1327 if (!djrcv_dev->dj_mode) 1328 return 0; 1329 1330 if (djrcv_dev->type != recvr_type_dj) { 1331 retval = logi_dj_recv_query_hidpp_devices(djrcv_dev); 1332 goto out; 1333 } 1334 1335 dj_report = kzalloc(sizeof(struct dj_report), GFP_KERNEL); 1336 if (!dj_report) 1337 return -ENOMEM; 1338 dj_report->report_id = REPORT_ID_DJ_SHORT; 1339 dj_report->device_index = HIDPP_RECEIVER_INDEX; 1340 dj_report->report_type = REPORT_TYPE_CMD_GET_PAIRED_DEVICES; 1341 retval = logi_dj_recv_send_report(djrcv_dev, dj_report); 1342 kfree(dj_report); 1343out: 1344 if (retval < 0) 1345 hid_err(djrcv_dev->hidpp, "%s error:%d\n", __func__, retval); 1346 1347 return retval; 1348} 1349 1350 1351static int logi_dj_recv_switch_to_dj_mode(struct dj_receiver_dev *djrcv_dev, 1352 unsigned timeout) 1353{ 1354 struct hid_device *hdev = djrcv_dev->hidpp; 1355 struct dj_report *dj_report; 1356 u8 *buf; 1357 int retval = 0; 1358 1359 dj_report = kzalloc(sizeof(struct dj_report), GFP_KERNEL); 1360 if (!dj_report) 1361 return -ENOMEM; 1362 1363 if (djrcv_dev->type == recvr_type_dj) { 1364 dj_report->report_id = REPORT_ID_DJ_SHORT; 1365 dj_report->device_index = HIDPP_RECEIVER_INDEX; 1366 dj_report->report_type = REPORT_TYPE_CMD_SWITCH; 1367 dj_report->report_params[CMD_SWITCH_PARAM_DEVBITFIELD] = 0x3F; 1368 dj_report->report_params[CMD_SWITCH_PARAM_TIMEOUT_SECONDS] = 1369 (u8)timeout; 1370 1371 retval = logi_dj_recv_send_report(djrcv_dev, dj_report); 1372 if (retval) 1373 goto out; 1374 1375 /* 1376 * Ugly sleep to work around a USB 3.0 bug when the receiver is 1377 * still processing the "switch-to-dj" command while we send an 1378 * other command. 1379 * 50 msec should gives enough time to the receiver to be ready. 1380 */ 1381 msleep(50); 1382 } 1383 1384 /* 1385 * Magical bits to set up hidpp notifications when the dj devices 1386 * are connected/disconnected. 1387 * 1388 * We can reuse dj_report because HIDPP_REPORT_SHORT_LENGTH is smaller 1389 * than DJREPORT_SHORT_LENGTH. 1390 */ 1391 buf = (u8 *)dj_report; 1392 1393 memset(buf, 0, HIDPP_REPORT_SHORT_LENGTH); 1394 1395 buf[0] = REPORT_ID_HIDPP_SHORT; 1396 buf[1] = HIDPP_RECEIVER_INDEX; 1397 buf[2] = 0x80; 1398 buf[3] = 0x00; 1399 buf[4] = 0x00; 1400 buf[5] = 0x09; 1401 buf[6] = 0x00; 1402 1403 retval = hid_hw_raw_request(hdev, REPORT_ID_HIDPP_SHORT, buf, 1404 HIDPP_REPORT_SHORT_LENGTH, HID_OUTPUT_REPORT, 1405 HID_REQ_SET_REPORT); 1406 1407out: 1408 kfree(dj_report); 1409 1410 if (retval < 0) 1411 hid_err(hdev, "%s error:%d\n", __func__, retval); 1412 1413 djrcv_dev->dj_mode = retval >= 0; 1414 return retval; 1415} 1416 1417 1418static int logi_dj_ll_open(struct hid_device *hid) 1419{ 1420 dbg_hid("%s: %s\n", __func__, hid->phys); 1421 return 0; 1422 1423} 1424 1425static void logi_dj_ll_close(struct hid_device *hid) 1426{ 1427 dbg_hid("%s: %s\n", __func__, hid->phys); 1428} 1429 1430/* 1431 * Register 0xB5 is "pairing information". It is solely intended for the 1432 * receiver, so do not overwrite the device index. 1433 */ 1434static u8 unifying_pairing_query[] = { REPORT_ID_HIDPP_SHORT, 1435 HIDPP_RECEIVER_INDEX, 1436 HIDPP_GET_LONG_REGISTER, 1437 HIDPP_REG_PAIRING_INFORMATION }; 1438static u8 unifying_pairing_answer[] = { REPORT_ID_HIDPP_LONG, 1439 HIDPP_RECEIVER_INDEX, 1440 HIDPP_GET_LONG_REGISTER, 1441 HIDPP_REG_PAIRING_INFORMATION }; 1442 1443static int logi_dj_ll_raw_request(struct hid_device *hid, 1444 unsigned char reportnum, __u8 *buf, 1445 size_t count, unsigned char report_type, 1446 int reqtype) 1447{ 1448 struct dj_device *djdev = hid->driver_data; 1449 struct dj_receiver_dev *djrcv_dev = djdev->dj_receiver_dev; 1450 u8 *out_buf; 1451 int ret; 1452 1453 if ((buf[0] == REPORT_ID_HIDPP_SHORT) || 1454 (buf[0] == REPORT_ID_HIDPP_LONG) || 1455 (buf[0] == REPORT_ID_HIDPP_VERY_LONG)) { 1456 if (count < 2) 1457 return -EINVAL; 1458 1459 /* special case where we should not overwrite 1460 * the device_index */ 1461 if (count == 7 && !memcmp(buf, unifying_pairing_query, 1462 sizeof(unifying_pairing_query))) 1463 buf[4] = (buf[4] & 0xf0) | (djdev->device_index - 1); 1464 else 1465 buf[1] = djdev->device_index; 1466 return hid_hw_raw_request(djrcv_dev->hidpp, reportnum, buf, 1467 count, report_type, reqtype); 1468 } 1469 1470 if (buf[0] != REPORT_TYPE_LEDS) 1471 return -EINVAL; 1472 1473 if (djrcv_dev->type != recvr_type_dj && count >= 2) { 1474 unsigned char led_report_id = 0; 1475 1476 if (!djrcv_dev->keyboard) { 1477 hid_warn(hid, "Received REPORT_TYPE_LEDS request before the keyboard interface was enumerated\n"); 1478 return 0; 1479 } 1480 1481 /* This Lightspeed receiver expects LED reports with report ID 1 */ 1482 if (djrcv_dev->type == recvr_type_gaming_hidpp_ls_1_3) 1483 led_report_id = 1; 1484 1485 /* usbhid overrides the report ID and ignores the first byte */ 1486 return hid_hw_raw_request(djrcv_dev->keyboard, led_report_id, buf, count, 1487 report_type, reqtype); 1488 } 1489 1490 out_buf = kzalloc(DJREPORT_SHORT_LENGTH, GFP_ATOMIC); 1491 if (!out_buf) 1492 return -ENOMEM; 1493 1494 if (count > DJREPORT_SHORT_LENGTH - 2) 1495 count = DJREPORT_SHORT_LENGTH - 2; 1496 1497 out_buf[0] = REPORT_ID_DJ_SHORT; 1498 out_buf[1] = djdev->device_index; 1499 memcpy(out_buf + 2, buf, count); 1500 1501 ret = hid_hw_raw_request(djrcv_dev->hidpp, out_buf[0], out_buf, 1502 DJREPORT_SHORT_LENGTH, report_type, reqtype); 1503 1504 kfree(out_buf); 1505 return ret; 1506} 1507 1508static void rdcat(char *rdesc, unsigned int *rsize, const char *data, unsigned int size) 1509{ 1510 memcpy(rdesc + *rsize, data, size); 1511 *rsize += size; 1512} 1513 1514static int logi_dj_ll_parse(struct hid_device *hid) 1515{ 1516 struct dj_device *djdev = hid->driver_data; 1517 unsigned int rsize = 0; 1518 char *rdesc; 1519 int retval; 1520 1521 dbg_hid("%s\n", __func__); 1522 1523 djdev->hdev->version = 0x0111; 1524 djdev->hdev->country = 0x00; 1525 1526 rdesc = kmalloc(MAX_RDESC_SIZE, GFP_KERNEL); 1527 if (!rdesc) 1528 return -ENOMEM; 1529 1530 if (djdev->reports_supported & STD_KEYBOARD) { 1531 dbg_hid("%s: sending a kbd descriptor, reports_supported: %llx\n", 1532 __func__, djdev->reports_supported); 1533 if (djdev->dj_receiver_dev->type == recvr_type_gaming_hidpp_ls_1_3) 1534 rdcat(rdesc, &rsize, kbd_lightspeed_1_3_descriptor, 1535 sizeof(kbd_lightspeed_1_3_descriptor)); 1536 else 1537 rdcat(rdesc, &rsize, kbd_descriptor, sizeof(kbd_descriptor)); 1538 } 1539 1540 if (djdev->reports_supported & STD_MOUSE) { 1541 dbg_hid("%s: sending a mouse descriptor, reports_supported: %llx\n", 1542 __func__, djdev->reports_supported); 1543 if (djdev->dj_receiver_dev->type == recvr_type_gaming_hidpp || 1544 djdev->dj_receiver_dev->type == recvr_type_mouse_only) 1545 rdcat(rdesc, &rsize, mse_high_res_descriptor, 1546 sizeof(mse_high_res_descriptor)); 1547 else if (djdev->dj_receiver_dev->type == recvr_type_gaming_hidpp_ls_1_3) 1548 rdcat(rdesc, &rsize, mse_high_res_ls_1_3_descriptor, 1549 sizeof(mse_high_res_ls_1_3_descriptor)); 1550 else if (djdev->dj_receiver_dev->type == recvr_type_27mhz) 1551 rdcat(rdesc, &rsize, mse_27mhz_descriptor, 1552 sizeof(mse_27mhz_descriptor)); 1553 else if (recvr_type_is_bluetooth(djdev->dj_receiver_dev->type)) 1554 rdcat(rdesc, &rsize, mse_bluetooth_descriptor, 1555 sizeof(mse_bluetooth_descriptor)); 1556 else 1557 rdcat(rdesc, &rsize, mse_descriptor, 1558 sizeof(mse_descriptor)); 1559 } 1560 1561 if (djdev->reports_supported & KBD_MOUSE) { 1562 dbg_hid("%s: sending a kbd-mouse descriptor, reports_supported: %llx\n", 1563 __func__, djdev->reports_supported); 1564 rdcat(rdesc, &rsize, mse5_bluetooth_descriptor, 1565 sizeof(mse5_bluetooth_descriptor)); 1566 } 1567 1568 if (djdev->reports_supported & MULTIMEDIA) { 1569 dbg_hid("%s: sending a multimedia report descriptor: %llx\n", 1570 __func__, djdev->reports_supported); 1571 rdcat(rdesc, &rsize, consumer_descriptor, sizeof(consumer_descriptor)); 1572 } 1573 1574 if (djdev->reports_supported & POWER_KEYS) { 1575 dbg_hid("%s: sending a power keys report descriptor: %llx\n", 1576 __func__, djdev->reports_supported); 1577 rdcat(rdesc, &rsize, syscontrol_descriptor, sizeof(syscontrol_descriptor)); 1578 } 1579 1580 if (djdev->reports_supported & MEDIA_CENTER) { 1581 dbg_hid("%s: sending a media center report descriptor: %llx\n", 1582 __func__, djdev->reports_supported); 1583 rdcat(rdesc, &rsize, media_descriptor, sizeof(media_descriptor)); 1584 } 1585 1586 if (djdev->reports_supported & KBD_LEDS) { 1587 dbg_hid("%s: need to send kbd leds report descriptor: %llx\n", 1588 __func__, djdev->reports_supported); 1589 } 1590 1591 if (djdev->reports_supported & HIDPP) { 1592 dbg_hid("%s: sending a HID++ descriptor, reports_supported: %llx\n", 1593 __func__, djdev->reports_supported); 1594 rdcat(rdesc, &rsize, hidpp_descriptor, 1595 sizeof(hidpp_descriptor)); 1596 } 1597 1598 retval = hid_parse_report(hid, rdesc, rsize); 1599 kfree(rdesc); 1600 1601 return retval; 1602} 1603 1604static int logi_dj_ll_start(struct hid_device *hid) 1605{ 1606 dbg_hid("%s\n", __func__); 1607 return 0; 1608} 1609 1610static void logi_dj_ll_stop(struct hid_device *hid) 1611{ 1612 dbg_hid("%s\n", __func__); 1613} 1614 1615static bool logi_dj_ll_may_wakeup(struct hid_device *hid) 1616{ 1617 struct dj_device *djdev = hid->driver_data; 1618 struct dj_receiver_dev *djrcv_dev = djdev->dj_receiver_dev; 1619 1620 return hid_hw_may_wakeup(djrcv_dev->hidpp); 1621} 1622 1623static const struct hid_ll_driver logi_dj_ll_driver = { 1624 .parse = logi_dj_ll_parse, 1625 .start = logi_dj_ll_start, 1626 .stop = logi_dj_ll_stop, 1627 .open = logi_dj_ll_open, 1628 .close = logi_dj_ll_close, 1629 .raw_request = logi_dj_ll_raw_request, 1630 .may_wakeup = logi_dj_ll_may_wakeup, 1631}; 1632 1633static int logi_dj_dj_event(struct hid_device *hdev, 1634 struct hid_report *report, u8 *data, 1635 int size) 1636{ 1637 struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev); 1638 struct dj_report *dj_report = (struct dj_report *) data; 1639 unsigned long flags; 1640 1641 /* 1642 * Here we receive all data coming from iface 2, there are 3 cases: 1643 * 1644 * 1) Data is intended for this driver i. e. data contains arrival, 1645 * departure, etc notifications, in which case we queue them for delayed 1646 * processing by the work queue. We return 1 to hid-core as no further 1647 * processing is required from it. 1648 * 1649 * 2) Data informs a connection change, if the change means rf link 1650 * loss, then we must send a null report to the upper layer to discard 1651 * potentially pressed keys that may be repeated forever by the input 1652 * layer. Return 1 to hid-core as no further processing is required. 1653 * 1654 * 3) Data is an actual input event from a paired DJ device in which 1655 * case we forward it to the correct hid device (via hid_input_report() 1656 * ) and return 1 so hid-core does not anything else with it. 1657 */ 1658 1659 if ((dj_report->device_index < DJ_DEVICE_INDEX_MIN) || 1660 (dj_report->device_index > DJ_DEVICE_INDEX_MAX)) { 1661 /* 1662 * Device index is wrong, bail out. 1663 * This driver can ignore safely the receiver notifications, 1664 * so ignore those reports too. 1665 */ 1666 if (dj_report->device_index != DJ_RECEIVER_INDEX) 1667 hid_err(hdev, "%s: invalid device index:%d\n", 1668 __func__, dj_report->device_index); 1669 return false; 1670 } 1671 1672 spin_lock_irqsave(&djrcv_dev->lock, flags); 1673 1674 if (!djrcv_dev->paired_dj_devices[dj_report->device_index]) { 1675 /* received an event for an unknown device, bail out */ 1676 logi_dj_recv_queue_notification(djrcv_dev, dj_report); 1677 goto out; 1678 } 1679 1680 switch (dj_report->report_type) { 1681 case REPORT_TYPE_NOTIF_DEVICE_PAIRED: 1682 /* pairing notifications are handled above the switch */ 1683 break; 1684 case REPORT_TYPE_NOTIF_DEVICE_UNPAIRED: 1685 logi_dj_recv_queue_notification(djrcv_dev, dj_report); 1686 break; 1687 case REPORT_TYPE_NOTIF_CONNECTION_STATUS: 1688 if (dj_report->report_params[CONNECTION_STATUS_PARAM_STATUS] == 1689 STATUS_LINKLOSS) { 1690 logi_dj_recv_forward_null_report(djrcv_dev, dj_report); 1691 } 1692 break; 1693 default: 1694 logi_dj_recv_forward_dj(djrcv_dev, dj_report); 1695 } 1696 1697out: 1698 spin_unlock_irqrestore(&djrcv_dev->lock, flags); 1699 1700 return true; 1701} 1702 1703static int logi_dj_hidpp_event(struct hid_device *hdev, 1704 struct hid_report *report, u8 *data, 1705 int size) 1706{ 1707 struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev); 1708 struct hidpp_event *hidpp_report = (struct hidpp_event *) data; 1709 struct dj_device *dj_dev; 1710 unsigned long flags; 1711 u8 device_index = hidpp_report->device_index; 1712 1713 if (device_index == HIDPP_RECEIVER_INDEX) { 1714 /* special case were the device wants to know its unifying 1715 * name */ 1716 if (size == HIDPP_REPORT_LONG_LENGTH && 1717 !memcmp(data, unifying_pairing_answer, 1718 sizeof(unifying_pairing_answer))) 1719 device_index = (data[4] & 0x0F) + 1; 1720 else 1721 return false; 1722 } 1723 1724 /* 1725 * Data is from the HID++ collection, in this case, we forward the 1726 * data to the corresponding child dj device and return 0 to hid-core 1727 * so he data also goes to the hidraw device of the receiver. This 1728 * allows a user space application to implement the full HID++ routing 1729 * via the receiver. 1730 */ 1731 1732 if ((device_index < DJ_DEVICE_INDEX_MIN) || 1733 (device_index > DJ_DEVICE_INDEX_MAX)) { 1734 /* 1735 * Device index is wrong, bail out. 1736 * This driver can ignore safely the receiver notifications, 1737 * so ignore those reports too. 1738 */ 1739 hid_err(hdev, "%s: invalid device index:%d\n", __func__, 1740 hidpp_report->device_index); 1741 return false; 1742 } 1743 1744 spin_lock_irqsave(&djrcv_dev->lock, flags); 1745 1746 dj_dev = djrcv_dev->paired_dj_devices[device_index]; 1747 1748 /* 1749 * With 27 MHz receivers, we do not get an explicit unpair event, 1750 * remove the old device if the user has paired a *different* device. 1751 */ 1752 if (djrcv_dev->type == recvr_type_27mhz && dj_dev && 1753 hidpp_report->sub_id == REPORT_TYPE_NOTIF_DEVICE_CONNECTED && 1754 hidpp_report->params[HIDPP_PARAM_PROTO_TYPE] == 0x02 && 1755 hidpp_report->params[HIDPP_PARAM_27MHZ_DEVID] != 1756 dj_dev->hdev->product) { 1757 struct dj_workitem workitem = { 1758 .device_index = hidpp_report->device_index, 1759 .type = WORKITEM_TYPE_UNPAIRED, 1760 }; 1761 kfifo_in(&djrcv_dev->notif_fifo, &workitem, sizeof(workitem)); 1762 /* logi_hidpp_recv_queue_notif will queue the work */ 1763 dj_dev = NULL; 1764 } 1765 1766 if (dj_dev) { 1767 logi_dj_recv_forward_report(dj_dev, data, size); 1768 } else { 1769 if (hidpp_report->sub_id == REPORT_TYPE_NOTIF_DEVICE_CONNECTED) 1770 logi_hidpp_recv_queue_notif(hdev, hidpp_report); 1771 else 1772 logi_dj_recv_queue_unknown_work(djrcv_dev); 1773 } 1774 1775 spin_unlock_irqrestore(&djrcv_dev->lock, flags); 1776 1777 return false; 1778} 1779 1780static int logi_dj_raw_event(struct hid_device *hdev, 1781 struct hid_report *report, u8 *data, 1782 int size) 1783{ 1784 struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev); 1785 dbg_hid("%s, size:%d\n", __func__, size); 1786 1787 if (!djrcv_dev) 1788 return 0; 1789 1790 if (!hdev->report_enum[HID_INPUT_REPORT].numbered) { 1791 1792 if (djrcv_dev->unnumbered_application == HID_GD_KEYBOARD) { 1793 /* 1794 * For the keyboard, we can reuse the same report by 1795 * using the second byte which is constant in the USB 1796 * HID report descriptor. 1797 */ 1798 data[1] = data[0]; 1799 data[0] = REPORT_TYPE_KEYBOARD; 1800 1801 logi_dj_recv_forward_input_report(hdev, data, size); 1802 1803 /* restore previous state */ 1804 data[0] = data[1]; 1805 data[1] = 0; 1806 } 1807 /* 1808 * Mouse-only receivers send unnumbered mouse data. The 27 MHz 1809 * receiver uses 6 byte packets, the nano receiver 8 bytes, 1810 * the lightspeed receiver (Pro X Superlight) 13 bytes. 1811 */ 1812 if (djrcv_dev->unnumbered_application == HID_GD_MOUSE && 1813 size <= 13){ 1814 u8 mouse_report[14]; 1815 1816 /* Prepend report id */ 1817 mouse_report[0] = REPORT_TYPE_MOUSE; 1818 memcpy(mouse_report + 1, data, size); 1819 logi_dj_recv_forward_input_report(hdev, mouse_report, 1820 size + 1); 1821 } 1822 1823 return false; 1824 } 1825 1826 switch (data[0]) { 1827 case REPORT_ID_DJ_SHORT: 1828 if (size != DJREPORT_SHORT_LENGTH) { 1829 hid_err(hdev, "Short DJ report bad size (%d)", size); 1830 return false; 1831 } 1832 return logi_dj_dj_event(hdev, report, data, size); 1833 case REPORT_ID_DJ_LONG: 1834 if (size != DJREPORT_LONG_LENGTH) { 1835 hid_err(hdev, "Long DJ report bad size (%d)", size); 1836 return false; 1837 } 1838 return logi_dj_dj_event(hdev, report, data, size); 1839 case REPORT_ID_HIDPP_SHORT: 1840 if (size != HIDPP_REPORT_SHORT_LENGTH) { 1841 hid_err(hdev, "Short HID++ report bad size (%d)", size); 1842 return false; 1843 } 1844 return logi_dj_hidpp_event(hdev, report, data, size); 1845 case REPORT_ID_HIDPP_LONG: 1846 if (size != HIDPP_REPORT_LONG_LENGTH) { 1847 hid_err(hdev, "Long HID++ report bad size (%d)", size); 1848 return false; 1849 } 1850 return logi_dj_hidpp_event(hdev, report, data, size); 1851 } 1852 1853 logi_dj_recv_forward_input_report(hdev, data, size); 1854 1855 return false; 1856} 1857 1858static int logi_dj_probe(struct hid_device *hdev, 1859 const struct hid_device_id *id) 1860{ 1861 struct hid_report_enum *rep_enum; 1862 struct hid_report *rep; 1863 struct dj_receiver_dev *djrcv_dev; 1864 struct usb_interface *intf; 1865 unsigned int no_dj_interfaces = 0; 1866 bool has_hidpp = false; 1867 unsigned long flags; 1868 int retval; 1869 1870 /* 1871 * Call to usbhid to fetch the HID descriptors of the current 1872 * interface subsequently call to the hid/hid-core to parse the 1873 * fetched descriptors. 1874 */ 1875 retval = hid_parse(hdev); 1876 if (retval) { 1877 hid_err(hdev, "%s: parse failed\n", __func__); 1878 return retval; 1879 } 1880 1881 /* 1882 * Some KVMs add an extra interface for e.g. mouse emulation. If we 1883 * treat these as logitech-dj interfaces then this causes input events 1884 * reported through this extra interface to not be reported correctly. 1885 * To avoid this, we treat these as generic-hid devices. 1886 */ 1887 switch (id->driver_data) { 1888 case recvr_type_dj: no_dj_interfaces = 3; break; 1889 case recvr_type_hidpp: no_dj_interfaces = 2; break; 1890 case recvr_type_gaming_hidpp: no_dj_interfaces = 3; break; 1891 case recvr_type_gaming_hidpp_ls_1_3: no_dj_interfaces = 3; break; 1892 case recvr_type_mouse_only: no_dj_interfaces = 2; break; 1893 case recvr_type_27mhz: no_dj_interfaces = 2; break; 1894 case recvr_type_bluetooth: no_dj_interfaces = 2; break; 1895 case recvr_type_dinovo: no_dj_interfaces = 2; break; 1896 } 1897 if (hid_is_usb(hdev)) { 1898 intf = to_usb_interface(hdev->dev.parent); 1899 if (intf && intf->altsetting->desc.bInterfaceNumber >= 1900 no_dj_interfaces) { 1901 hdev->quirks |= HID_QUIRK_INPUT_PER_APP; 1902 return hid_hw_start(hdev, HID_CONNECT_DEFAULT); 1903 } 1904 } 1905 1906 rep_enum = &hdev->report_enum[HID_INPUT_REPORT]; 1907 1908 /* no input reports, bail out */ 1909 if (list_empty(&rep_enum->report_list)) 1910 return -ENODEV; 1911 1912 /* 1913 * Check for the HID++ application. 1914 * Note: we should theoretically check for HID++ and DJ 1915 * collections, but this will do. 1916 */ 1917 list_for_each_entry(rep, &rep_enum->report_list, list) { 1918 if (rep->application == 0xff000001) 1919 has_hidpp = true; 1920 } 1921 1922 /* 1923 * Ignore interfaces without DJ/HID++ collection, they will not carry 1924 * any data, dont create any hid_device for them. 1925 */ 1926 if (!has_hidpp && id->driver_data == recvr_type_dj) 1927 return -ENODEV; 1928 1929 /* get the current application attached to the node */ 1930 rep = list_first_entry(&rep_enum->report_list, struct hid_report, list); 1931 djrcv_dev = dj_get_receiver_dev(hdev, id->driver_data, 1932 rep->application, has_hidpp); 1933 if (!djrcv_dev) { 1934 hid_err(hdev, "%s: dj_get_receiver_dev failed\n", __func__); 1935 return -ENOMEM; 1936 } 1937 1938 if (!rep_enum->numbered) 1939 djrcv_dev->unnumbered_application = rep->application; 1940 1941 /* Starts the usb device and connects to upper interfaces hiddev and 1942 * hidraw */ 1943 retval = hid_hw_start(hdev, HID_CONNECT_HIDRAW|HID_CONNECT_HIDDEV); 1944 if (retval) { 1945 hid_err(hdev, "%s: hid_hw_start returned error\n", __func__); 1946 goto hid_hw_start_fail; 1947 } 1948 1949 if (has_hidpp) { 1950 /* 1951 * This can fail with a KVM. Ignore errors to let the probe 1952 * succeed, logi_dj_recv_queue_unknown_work will retry later. 1953 */ 1954 logi_dj_recv_switch_to_dj_mode(djrcv_dev, 0); 1955 } 1956 1957 /* This is enabling the polling urb on the IN endpoint */ 1958 retval = hid_hw_open(hdev); 1959 if (retval < 0) { 1960 hid_err(hdev, "%s: hid_hw_open returned error:%d\n", 1961 __func__, retval); 1962 goto llopen_failed; 1963 } 1964 1965 /* Allow incoming packets to arrive: */ 1966 hid_device_io_start(hdev); 1967 1968 if (has_hidpp) { 1969 spin_lock_irqsave(&djrcv_dev->lock, flags); 1970 djrcv_dev->ready = true; 1971 spin_unlock_irqrestore(&djrcv_dev->lock, flags); 1972 /* This too can fail with a KVM, ignore errors. */ 1973 logi_dj_recv_query_paired_devices(djrcv_dev); 1974 } 1975 1976 return 0; 1977 1978llopen_failed: 1979 hid_hw_stop(hdev); 1980 1981hid_hw_start_fail: 1982 dj_put_receiver_dev(hdev); 1983 return retval; 1984} 1985 1986#ifdef CONFIG_PM 1987static int logi_dj_reset_resume(struct hid_device *hdev) 1988{ 1989 struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev); 1990 1991 if (!djrcv_dev || djrcv_dev->hidpp != hdev) 1992 return 0; 1993 1994 logi_dj_recv_switch_to_dj_mode(djrcv_dev, 0); 1995 return 0; 1996} 1997#endif 1998 1999static void logi_dj_remove(struct hid_device *hdev) 2000{ 2001 struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev); 2002 struct dj_device *dj_dev; 2003 unsigned long flags; 2004 int i; 2005 2006 dbg_hid("%s\n", __func__); 2007 2008 if (!djrcv_dev) 2009 return hid_hw_stop(hdev); 2010 2011 /* 2012 * This ensures that if the work gets requeued from another 2013 * interface of the same receiver it will be a no-op. 2014 */ 2015 spin_lock_irqsave(&djrcv_dev->lock, flags); 2016 djrcv_dev->ready = false; 2017 spin_unlock_irqrestore(&djrcv_dev->lock, flags); 2018 2019 cancel_work_sync(&djrcv_dev->work); 2020 2021 hid_hw_close(hdev); 2022 hid_hw_stop(hdev); 2023 2024 /* 2025 * For proper operation we need access to all interfaces, so we destroy 2026 * the paired devices when we're unbound from any interface. 2027 * 2028 * Note we may still be bound to other interfaces, sharing the same 2029 * djrcv_dev, so we need locking here. 2030 */ 2031 for (i = 0; i < (DJ_MAX_PAIRED_DEVICES + DJ_DEVICE_INDEX_MIN); i++) { 2032 spin_lock_irqsave(&djrcv_dev->lock, flags); 2033 dj_dev = djrcv_dev->paired_dj_devices[i]; 2034 djrcv_dev->paired_dj_devices[i] = NULL; 2035 spin_unlock_irqrestore(&djrcv_dev->lock, flags); 2036 if (dj_dev != NULL) { 2037 hid_destroy_device(dj_dev->hdev); 2038 kfree(dj_dev); 2039 } 2040 } 2041 2042 dj_put_receiver_dev(hdev); 2043} 2044 2045static const struct hid_device_id logi_dj_receivers[] = { 2046 { /* Logitech unifying receiver (0xc52b) */ 2047 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, 2048 USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER), 2049 .driver_data = recvr_type_dj}, 2050 { /* Logitech unifying receiver (0xc532) */ 2051 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, 2052 USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER_2), 2053 .driver_data = recvr_type_dj}, 2054 2055 { /* Logitech Nano mouse only receiver (0xc52f) */ 2056 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, 2057 USB_DEVICE_ID_LOGITECH_NANO_RECEIVER), 2058 .driver_data = recvr_type_mouse_only}, 2059 { /* Logitech Nano (non DJ) receiver (0xc534) */ 2060 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, 2061 USB_DEVICE_ID_LOGITECH_NANO_RECEIVER_2), 2062 .driver_data = recvr_type_hidpp}, 2063 2064 { /* Logitech G700(s) receiver (0xc531) */ 2065 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, 2066 USB_DEVICE_ID_LOGITECH_G700_RECEIVER), 2067 .driver_data = recvr_type_gaming_hidpp}, 2068 { /* Logitech G602 receiver (0xc537) */ 2069 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, 2070 0xc537), 2071 .driver_data = recvr_type_gaming_hidpp}, 2072 { /* Logitech lightspeed receiver (0xc539) */ 2073 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, 2074 USB_DEVICE_ID_LOGITECH_NANO_RECEIVER_LIGHTSPEED_1), 2075 .driver_data = recvr_type_gaming_hidpp}, 2076 { /* Logitech powerplay receiver (0xc53a) */ 2077 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, 2078 USB_DEVICE_ID_LOGITECH_NANO_RECEIVER_POWERPLAY), 2079 .driver_data = recvr_type_gaming_hidpp}, 2080 { /* Logitech lightspeed receiver (0xc53f) */ 2081 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, 2082 USB_DEVICE_ID_LOGITECH_NANO_RECEIVER_LIGHTSPEED_1_1), 2083 .driver_data = recvr_type_gaming_hidpp}, 2084 { /* Logitech lightspeed receiver (0xc543) */ 2085 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, 2086 USB_DEVICE_ID_LOGITECH_NANO_RECEIVER_LIGHTSPEED_1_2), 2087 .driver_data = recvr_type_gaming_hidpp}, 2088 { /* Logitech lightspeed receiver (0xc547) */ 2089 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, 2090 USB_DEVICE_ID_LOGITECH_NANO_RECEIVER_LIGHTSPEED_1_3), 2091 .driver_data = recvr_type_gaming_hidpp_ls_1_3}, 2092 { /* Logitech lightspeed receiver (0xc54d) */ 2093 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, 2094 USB_DEVICE_ID_LOGITECH_NANO_RECEIVER_LIGHTSPEED_1_4), 2095 .driver_data = recvr_type_gaming_hidpp_ls_1_3}, 2096 2097 { /* Logitech 27 MHz HID++ 1.0 receiver (0xc513) */ 2098 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_MX3000_RECEIVER), 2099 .driver_data = recvr_type_27mhz}, 2100 { /* Logitech 27 MHz HID++ 1.0 receiver (0xc517) */ 2101 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, 2102 USB_DEVICE_ID_S510_RECEIVER_2), 2103 .driver_data = recvr_type_27mhz}, 2104 { /* Logitech 27 MHz HID++ 1.0 mouse-only receiver (0xc51b) */ 2105 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, 2106 USB_DEVICE_ID_LOGITECH_27MHZ_MOUSE_RECEIVER), 2107 .driver_data = recvr_type_27mhz}, 2108 2109 { /* Logitech MX5000 HID++ / bluetooth receiver keyboard intf. (0xc70e) */ 2110 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, 2111 USB_DEVICE_ID_MX5000_RECEIVER_KBD_DEV), 2112 .driver_data = recvr_type_bluetooth}, 2113 { /* Logitech MX5000 HID++ / bluetooth receiver mouse intf. (0xc70a) */ 2114 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, 2115 USB_DEVICE_ID_MX5000_RECEIVER_MOUSE_DEV), 2116 .driver_data = recvr_type_bluetooth}, 2117 { /* Logitech MX5500 HID++ / bluetooth receiver keyboard intf. (0xc71b) */ 2118 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, 2119 USB_DEVICE_ID_MX5500_RECEIVER_KBD_DEV), 2120 .driver_data = recvr_type_bluetooth}, 2121 { /* Logitech MX5500 HID++ / bluetooth receiver mouse intf. (0xc71c) */ 2122 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, 2123 USB_DEVICE_ID_MX5500_RECEIVER_MOUSE_DEV), 2124 .driver_data = recvr_type_bluetooth}, 2125 2126 { /* Logitech Dinovo Edge HID++ / bluetooth receiver keyboard intf. (0xc713) */ 2127 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, 2128 USB_DEVICE_ID_DINOVO_EDGE_RECEIVER_KBD_DEV), 2129 .driver_data = recvr_type_dinovo}, 2130 { /* Logitech Dinovo Edge HID++ / bluetooth receiver mouse intf. (0xc714) */ 2131 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, 2132 USB_DEVICE_ID_DINOVO_EDGE_RECEIVER_MOUSE_DEV), 2133 .driver_data = recvr_type_dinovo}, 2134 { /* Logitech DiNovo Mini HID++ / bluetooth receiver mouse intf. (0xc71e) */ 2135 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, 2136 USB_DEVICE_ID_DINOVO_MINI_RECEIVER_KBD_DEV), 2137 .driver_data = recvr_type_dinovo}, 2138 { /* Logitech DiNovo Mini HID++ / bluetooth receiver keyboard intf. (0xc71f) */ 2139 HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, 2140 USB_DEVICE_ID_DINOVO_MINI_RECEIVER_MOUSE_DEV), 2141 .driver_data = recvr_type_dinovo}, 2142 {} 2143}; 2144 2145MODULE_DEVICE_TABLE(hid, logi_dj_receivers); 2146 2147static struct hid_driver logi_djreceiver_driver = { 2148 .name = "logitech-djreceiver", 2149 .id_table = logi_dj_receivers, 2150 .probe = logi_dj_probe, 2151 .remove = logi_dj_remove, 2152 .raw_event = logi_dj_raw_event, 2153#ifdef CONFIG_PM 2154 .reset_resume = logi_dj_reset_resume, 2155#endif 2156}; 2157 2158module_hid_driver(logi_djreceiver_driver); 2159 2160MODULE_DESCRIPTION("HID driver for Logitech receivers"); 2161MODULE_LICENSE("GPL"); 2162MODULE_AUTHOR("Logitech"); 2163MODULE_AUTHOR("Nestor Lopez Casado"); 2164MODULE_AUTHOR("nlopezcasad@logitech.com");
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