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45051539 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
534a7b8e NLC |
2 | /* |
3 | * HID driver for Logitech Unifying receivers | |
4 | * | |
5 | * Copyright (c) 2011 Logitech | |
6 | */ | |
7 | ||
534a7b8e NLC |
8 | |
9 | ||
10 | #include <linux/device.h> | |
11 | #include <linux/hid.h> | |
12 | #include <linux/module.h> | |
8cb3746a | 13 | #include <linux/kfifo.h> |
82c0beb8 | 14 | #include <linux/delay.h> |
da12b224 | 15 | #include <linux/usb.h> /* For to_usb_interface for kvm extra intf check */ |
44d27f7d | 16 | #include <asm/unaligned.h> |
534a7b8e | 17 | #include "hid-ids.h" |
8cb3746a BT |
18 | |
19 | #define DJ_MAX_PAIRED_DEVICES 6 | |
4fcad95a | 20 | #define DJ_MAX_NUMBER_NOTIFS 8 |
8cb3746a BT |
21 | #define DJ_RECEIVER_INDEX 0 |
22 | #define DJ_DEVICE_INDEX_MIN 1 | |
23 | #define DJ_DEVICE_INDEX_MAX 6 | |
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 | ||
925f0f3e BT |
31 | #define REPORT_ID_HIDPP_SHORT 0x10 |
32 | #define REPORT_ID_HIDPP_LONG 0x11 | |
3a9a2c86 | 33 | #define REPORT_ID_HIDPP_VERY_LONG 0x12 |
925f0f3e BT |
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 | |
8cb3746a BT |
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 | ||
8cb3746a BT |
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 */ | |
a17dd1f2 BT |
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 MEDIA_CENTER BIT(8) | |
88 | #define KBD_LEDS BIT(14) | |
6d3c3f03 HG |
89 | /* Fake (bitnr > NUMBER_OF_HID_REPORTS) bit to track HID++ capability */ |
90 | #define HIDPP BIT_ULL(63) | |
8cb3746a | 91 | |
74808f91 HG |
92 | /* HID++ Device Connected Notification */ |
93 | #define REPORT_TYPE_NOTIF_DEVICE_CONNECTED 0x41 | |
94 | #define HIDPP_PARAM_PROTO_TYPE 0x00 | |
95 | #define HIDPP_PARAM_DEVICE_INFO 0x01 | |
96 | #define HIDPP_PARAM_EQUAD_LSB 0x02 | |
97 | #define HIDPP_PARAM_EQUAD_MSB 0x03 | |
c9121cf6 | 98 | #define HIDPP_PARAM_27MHZ_DEVID 0x03 |
74808f91 HG |
99 | #define HIDPP_DEVICE_TYPE_MASK GENMASK(3, 0) |
100 | #define HIDPP_LINK_STATUS_MASK BIT(6) | |
f2113c30 | 101 | #define HIDPP_MANUFACTURER_MASK BIT(7) |
74808f91 | 102 | |
de76b1d3 HG |
103 | #define HIDPP_DEVICE_TYPE_KEYBOARD 1 |
104 | #define HIDPP_DEVICE_TYPE_MOUSE 2 | |
105 | ||
74808f91 | 106 | #define HIDPP_SET_REGISTER 0x80 |
c0340412 | 107 | #define HIDPP_GET_LONG_REGISTER 0x83 |
74808f91 | 108 | #define HIDPP_REG_CONNECTION_STATE 0x02 |
c0340412 BT |
109 | #define HIDPP_REG_PAIRING_INFORMATION 0xB5 |
110 | #define HIDPP_PAIRING_INFORMATION 0x20 | |
74808f91 HG |
111 | #define HIDPP_FAKE_DEVICE_ARRIVAL 0x02 |
112 | ||
113 | enum recvr_type { | |
114 | recvr_type_dj, | |
115 | recvr_type_hidpp, | |
f5fb57a7 | 116 | recvr_type_gaming_hidpp, |
3ed224e2 | 117 | recvr_type_mouse_only, |
c9121cf6 | 118 | recvr_type_27mhz, |
f2113c30 | 119 | recvr_type_bluetooth, |
74808f91 | 120 | }; |
c0340412 | 121 | |
8cb3746a BT |
122 | struct dj_report { |
123 | u8 report_id; | |
124 | u8 device_index; | |
125 | u8 report_type; | |
126 | u8 report_params[DJREPORT_SHORT_LENGTH - 3]; | |
127 | }; | |
128 | ||
7bb56a5f BT |
129 | struct hidpp_event { |
130 | u8 report_id; | |
131 | u8 device_index; | |
132 | u8 sub_id; | |
133 | u8 params[HIDPP_REPORT_LONG_LENGTH - 3U]; | |
134 | } __packed; | |
135 | ||
8cb3746a | 136 | struct dj_receiver_dev { |
a1d97ccb HG |
137 | struct hid_device *mouse; |
138 | struct hid_device *keyboard; | |
0ee75544 | 139 | struct hid_device *hidpp; |
8cb3746a BT |
140 | struct dj_device *paired_dj_devices[DJ_MAX_PAIRED_DEVICES + |
141 | DJ_DEVICE_INDEX_MIN]; | |
a1d97ccb HG |
142 | struct list_head list; |
143 | struct kref kref; | |
8cb3746a BT |
144 | struct work_struct work; |
145 | struct kfifo notif_fifo; | |
b6aeedde | 146 | unsigned long last_query; /* in jiffies */ |
a1d97ccb | 147 | bool ready; |
74808f91 HG |
148 | enum recvr_type type; |
149 | unsigned int unnumbered_application; | |
8cb3746a | 150 | spinlock_t lock; |
8cb3746a BT |
151 | }; |
152 | ||
153 | struct dj_device { | |
154 | struct hid_device *hdev; | |
155 | struct dj_receiver_dev *dj_receiver_dev; | |
6d3c3f03 | 156 | u64 reports_supported; |
8cb3746a BT |
157 | u8 device_index; |
158 | }; | |
534a7b8e | 159 | |
4fcad95a BT |
160 | #define WORKITEM_TYPE_EMPTY 0 |
161 | #define WORKITEM_TYPE_PAIRED 1 | |
162 | #define WORKITEM_TYPE_UNPAIRED 2 | |
163 | #define WORKITEM_TYPE_UNKNOWN 255 | |
164 | ||
165 | struct dj_workitem { | |
166 | u8 type; /* WORKITEM_TYPE_* */ | |
167 | u8 device_index; | |
de76b1d3 | 168 | u8 device_type; |
4fcad95a BT |
169 | u8 quad_id_msb; |
170 | u8 quad_id_lsb; | |
6d3c3f03 | 171 | u64 reports_supported; |
4fcad95a BT |
172 | }; |
173 | ||
534a7b8e NLC |
174 | /* Keyboard descriptor (1) */ |
175 | static const char kbd_descriptor[] = { | |
176 | 0x05, 0x01, /* USAGE_PAGE (generic Desktop) */ | |
177 | 0x09, 0x06, /* USAGE (Keyboard) */ | |
178 | 0xA1, 0x01, /* COLLECTION (Application) */ | |
179 | 0x85, 0x01, /* REPORT_ID (1) */ | |
180 | 0x95, 0x08, /* REPORT_COUNT (8) */ | |
181 | 0x75, 0x01, /* REPORT_SIZE (1) */ | |
182 | 0x15, 0x00, /* LOGICAL_MINIMUM (0) */ | |
183 | 0x25, 0x01, /* LOGICAL_MAXIMUM (1) */ | |
184 | 0x05, 0x07, /* USAGE_PAGE (Keyboard) */ | |
185 | 0x19, 0xE0, /* USAGE_MINIMUM (Left Control) */ | |
186 | 0x29, 0xE7, /* USAGE_MAXIMUM (Right GUI) */ | |
187 | 0x81, 0x02, /* INPUT (Data,Var,Abs) */ | |
534a7b8e NLC |
188 | 0x95, 0x06, /* REPORT_COUNT (6) */ |
189 | 0x75, 0x08, /* REPORT_SIZE (8) */ | |
190 | 0x15, 0x00, /* LOGICAL_MINIMUM (0) */ | |
191 | 0x26, 0xFF, 0x00, /* LOGICAL_MAXIMUM (255) */ | |
192 | 0x05, 0x07, /* USAGE_PAGE (Keyboard) */ | |
193 | 0x19, 0x00, /* USAGE_MINIMUM (no event) */ | |
194 | 0x2A, 0xFF, 0x00, /* USAGE_MAXIMUM (reserved) */ | |
195 | 0x81, 0x00, /* INPUT (Data,Ary,Abs) */ | |
0e40d356 BT |
196 | 0x85, 0x0e, /* REPORT_ID (14) */ |
197 | 0x05, 0x08, /* USAGE PAGE (LED page) */ | |
198 | 0x95, 0x05, /* REPORT COUNT (5) */ | |
199 | 0x75, 0x01, /* REPORT SIZE (1) */ | |
200 | 0x15, 0x00, /* LOGICAL_MINIMUM (0) */ | |
201 | 0x25, 0x01, /* LOGICAL_MAXIMUM (1) */ | |
202 | 0x19, 0x01, /* USAGE MINIMUM (1) */ | |
203 | 0x29, 0x05, /* USAGE MAXIMUM (5) */ | |
204 | 0x91, 0x02, /* OUTPUT (Data, Variable, Absolute) */ | |
205 | 0x95, 0x01, /* REPORT COUNT (1) */ | |
206 | 0x75, 0x03, /* REPORT SIZE (3) */ | |
207 | 0x91, 0x01, /* OUTPUT (Constant) */ | |
534a7b8e NLC |
208 | 0xC0 |
209 | }; | |
210 | ||
211 | /* Mouse descriptor (2) */ | |
212 | static const char mse_descriptor[] = { | |
213 | 0x05, 0x01, /* USAGE_PAGE (Generic Desktop) */ | |
214 | 0x09, 0x02, /* USAGE (Mouse) */ | |
215 | 0xA1, 0x01, /* COLLECTION (Application) */ | |
216 | 0x85, 0x02, /* REPORT_ID = 2 */ | |
217 | 0x09, 0x01, /* USAGE (pointer) */ | |
218 | 0xA1, 0x00, /* COLLECTION (physical) */ | |
219 | 0x05, 0x09, /* USAGE_PAGE (buttons) */ | |
220 | 0x19, 0x01, /* USAGE_MIN (1) */ | |
221 | 0x29, 0x10, /* USAGE_MAX (16) */ | |
222 | 0x15, 0x00, /* LOGICAL_MIN (0) */ | |
223 | 0x25, 0x01, /* LOGICAL_MAX (1) */ | |
224 | 0x95, 0x10, /* REPORT_COUNT (16) */ | |
225 | 0x75, 0x01, /* REPORT_SIZE (1) */ | |
226 | 0x81, 0x02, /* INPUT (data var abs) */ | |
227 | 0x05, 0x01, /* USAGE_PAGE (generic desktop) */ | |
228 | 0x16, 0x01, 0xF8, /* LOGICAL_MIN (-2047) */ | |
229 | 0x26, 0xFF, 0x07, /* LOGICAL_MAX (2047) */ | |
230 | 0x75, 0x0C, /* REPORT_SIZE (12) */ | |
231 | 0x95, 0x02, /* REPORT_COUNT (2) */ | |
232 | 0x09, 0x30, /* USAGE (X) */ | |
233 | 0x09, 0x31, /* USAGE (Y) */ | |
234 | 0x81, 0x06, /* INPUT */ | |
235 | 0x15, 0x81, /* LOGICAL_MIN (-127) */ | |
236 | 0x25, 0x7F, /* LOGICAL_MAX (127) */ | |
237 | 0x75, 0x08, /* REPORT_SIZE (8) */ | |
238 | 0x95, 0x01, /* REPORT_COUNT (1) */ | |
239 | 0x09, 0x38, /* USAGE (wheel) */ | |
240 | 0x81, 0x06, /* INPUT */ | |
241 | 0x05, 0x0C, /* USAGE_PAGE(consumer) */ | |
242 | 0x0A, 0x38, 0x02, /* USAGE(AC Pan) */ | |
243 | 0x95, 0x01, /* REPORT_COUNT (1) */ | |
244 | 0x81, 0x06, /* INPUT */ | |
245 | 0xC0, /* END_COLLECTION */ | |
246 | 0xC0, /* END_COLLECTION */ | |
247 | }; | |
248 | ||
c9121cf6 HG |
249 | /* Mouse descriptor (2) for 27 MHz receiver, only 8 buttons */ |
250 | static const char mse_27mhz_descriptor[] = { | |
251 | 0x05, 0x01, /* USAGE_PAGE (Generic Desktop) */ | |
252 | 0x09, 0x02, /* USAGE (Mouse) */ | |
253 | 0xA1, 0x01, /* COLLECTION (Application) */ | |
254 | 0x85, 0x02, /* REPORT_ID = 2 */ | |
255 | 0x09, 0x01, /* USAGE (pointer) */ | |
256 | 0xA1, 0x00, /* COLLECTION (physical) */ | |
257 | 0x05, 0x09, /* USAGE_PAGE (buttons) */ | |
258 | 0x19, 0x01, /* USAGE_MIN (1) */ | |
259 | 0x29, 0x08, /* USAGE_MAX (8) */ | |
260 | 0x15, 0x00, /* LOGICAL_MIN (0) */ | |
261 | 0x25, 0x01, /* LOGICAL_MAX (1) */ | |
262 | 0x95, 0x08, /* REPORT_COUNT (8) */ | |
263 | 0x75, 0x01, /* REPORT_SIZE (1) */ | |
264 | 0x81, 0x02, /* INPUT (data var abs) */ | |
265 | 0x05, 0x01, /* USAGE_PAGE (generic desktop) */ | |
266 | 0x16, 0x01, 0xF8, /* LOGICAL_MIN (-2047) */ | |
267 | 0x26, 0xFF, 0x07, /* LOGICAL_MAX (2047) */ | |
268 | 0x75, 0x0C, /* REPORT_SIZE (12) */ | |
269 | 0x95, 0x02, /* REPORT_COUNT (2) */ | |
270 | 0x09, 0x30, /* USAGE (X) */ | |
271 | 0x09, 0x31, /* USAGE (Y) */ | |
272 | 0x81, 0x06, /* INPUT */ | |
273 | 0x15, 0x81, /* LOGICAL_MIN (-127) */ | |
274 | 0x25, 0x7F, /* LOGICAL_MAX (127) */ | |
275 | 0x75, 0x08, /* REPORT_SIZE (8) */ | |
276 | 0x95, 0x01, /* REPORT_COUNT (1) */ | |
277 | 0x09, 0x38, /* USAGE (wheel) */ | |
278 | 0x81, 0x06, /* INPUT */ | |
279 | 0x05, 0x0C, /* USAGE_PAGE(consumer) */ | |
280 | 0x0A, 0x38, 0x02, /* USAGE(AC Pan) */ | |
281 | 0x95, 0x01, /* REPORT_COUNT (1) */ | |
282 | 0x81, 0x06, /* INPUT */ | |
283 | 0xC0, /* END_COLLECTION */ | |
284 | 0xC0, /* END_COLLECTION */ | |
285 | }; | |
286 | ||
f2113c30 HG |
287 | /* Mouse descriptor (2) for Bluetooth receiver, low-res hwheel, 12 buttons */ |
288 | static const char mse_bluetooth_descriptor[] = { | |
289 | 0x05, 0x01, /* USAGE_PAGE (Generic Desktop) */ | |
290 | 0x09, 0x02, /* USAGE (Mouse) */ | |
291 | 0xA1, 0x01, /* COLLECTION (Application) */ | |
292 | 0x85, 0x02, /* REPORT_ID = 2 */ | |
293 | 0x09, 0x01, /* USAGE (pointer) */ | |
294 | 0xA1, 0x00, /* COLLECTION (physical) */ | |
295 | 0x05, 0x09, /* USAGE_PAGE (buttons) */ | |
296 | 0x19, 0x01, /* USAGE_MIN (1) */ | |
297 | 0x29, 0x08, /* USAGE_MAX (8) */ | |
298 | 0x15, 0x00, /* LOGICAL_MIN (0) */ | |
299 | 0x25, 0x01, /* LOGICAL_MAX (1) */ | |
300 | 0x95, 0x08, /* REPORT_COUNT (8) */ | |
301 | 0x75, 0x01, /* REPORT_SIZE (1) */ | |
302 | 0x81, 0x02, /* INPUT (data var abs) */ | |
303 | 0x05, 0x01, /* USAGE_PAGE (generic desktop) */ | |
304 | 0x16, 0x01, 0xF8, /* LOGICAL_MIN (-2047) */ | |
305 | 0x26, 0xFF, 0x07, /* LOGICAL_MAX (2047) */ | |
306 | 0x75, 0x0C, /* REPORT_SIZE (12) */ | |
307 | 0x95, 0x02, /* REPORT_COUNT (2) */ | |
308 | 0x09, 0x30, /* USAGE (X) */ | |
309 | 0x09, 0x31, /* USAGE (Y) */ | |
310 | 0x81, 0x06, /* INPUT */ | |
311 | 0x15, 0x81, /* LOGICAL_MIN (-127) */ | |
312 | 0x25, 0x7F, /* LOGICAL_MAX (127) */ | |
313 | 0x75, 0x08, /* REPORT_SIZE (8) */ | |
314 | 0x95, 0x01, /* REPORT_COUNT (1) */ | |
315 | 0x09, 0x38, /* USAGE (wheel) */ | |
316 | 0x81, 0x06, /* INPUT */ | |
317 | 0x05, 0x0C, /* USAGE_PAGE(consumer) */ | |
318 | 0x0A, 0x38, 0x02, /* USAGE(AC Pan) */ | |
319 | 0x15, 0xF9, /* LOGICAL_MIN (-7) */ | |
320 | 0x25, 0x07, /* LOGICAL_MAX (7) */ | |
321 | 0x75, 0x04, /* REPORT_SIZE (4) */ | |
322 | 0x95, 0x01, /* REPORT_COUNT (1) */ | |
323 | 0x81, 0x06, /* INPUT */ | |
324 | 0x05, 0x09, /* USAGE_PAGE (buttons) */ | |
325 | 0x19, 0x09, /* USAGE_MIN (9) */ | |
326 | 0x29, 0x0C, /* USAGE_MAX (12) */ | |
327 | 0x15, 0x00, /* LOGICAL_MIN (0) */ | |
328 | 0x25, 0x01, /* LOGICAL_MAX (1) */ | |
329 | 0x75, 0x01, /* REPORT_SIZE (1) */ | |
330 | 0x95, 0x04, /* REPORT_COUNT (4) */ | |
331 | 0x81, 0x06, /* INPUT */ | |
332 | 0xC0, /* END_COLLECTION */ | |
333 | 0xC0, /* END_COLLECTION */ | |
334 | }; | |
335 | ||
f5fb57a7 BT |
336 | /* Gaming Mouse descriptor (2) */ |
337 | static const char mse_high_res_descriptor[] = { | |
338 | 0x05, 0x01, /* USAGE_PAGE (Generic Desktop) */ | |
339 | 0x09, 0x02, /* USAGE (Mouse) */ | |
340 | 0xA1, 0x01, /* COLLECTION (Application) */ | |
341 | 0x85, 0x02, /* REPORT_ID = 2 */ | |
342 | 0x09, 0x01, /* USAGE (pointer) */ | |
343 | 0xA1, 0x00, /* COLLECTION (physical) */ | |
344 | 0x05, 0x09, /* USAGE_PAGE (buttons) */ | |
345 | 0x19, 0x01, /* USAGE_MIN (1) */ | |
346 | 0x29, 0x10, /* USAGE_MAX (16) */ | |
347 | 0x15, 0x00, /* LOGICAL_MIN (0) */ | |
348 | 0x25, 0x01, /* LOGICAL_MAX (1) */ | |
349 | 0x95, 0x10, /* REPORT_COUNT (16) */ | |
350 | 0x75, 0x01, /* REPORT_SIZE (1) */ | |
351 | 0x81, 0x02, /* INPUT (data var abs) */ | |
352 | 0x05, 0x01, /* USAGE_PAGE (generic desktop) */ | |
353 | 0x16, 0x01, 0x80, /* LOGICAL_MIN (-32767) */ | |
354 | 0x26, 0xFF, 0x7F, /* LOGICAL_MAX (32767) */ | |
355 | 0x75, 0x10, /* REPORT_SIZE (16) */ | |
356 | 0x95, 0x02, /* REPORT_COUNT (2) */ | |
357 | 0x09, 0x30, /* USAGE (X) */ | |
358 | 0x09, 0x31, /* USAGE (Y) */ | |
359 | 0x81, 0x06, /* INPUT */ | |
360 | 0x15, 0x81, /* LOGICAL_MIN (-127) */ | |
361 | 0x25, 0x7F, /* LOGICAL_MAX (127) */ | |
362 | 0x75, 0x08, /* REPORT_SIZE (8) */ | |
363 | 0x95, 0x01, /* REPORT_COUNT (1) */ | |
364 | 0x09, 0x38, /* USAGE (wheel) */ | |
365 | 0x81, 0x06, /* INPUT */ | |
366 | 0x05, 0x0C, /* USAGE_PAGE(consumer) */ | |
367 | 0x0A, 0x38, 0x02, /* USAGE(AC Pan) */ | |
368 | 0x95, 0x01, /* REPORT_COUNT (1) */ | |
369 | 0x81, 0x06, /* INPUT */ | |
370 | 0xC0, /* END_COLLECTION */ | |
371 | 0xC0, /* END_COLLECTION */ | |
372 | }; | |
373 | ||
534a7b8e NLC |
374 | /* Consumer Control descriptor (3) */ |
375 | static const char consumer_descriptor[] = { | |
376 | 0x05, 0x0C, /* USAGE_PAGE (Consumer Devices) */ | |
377 | 0x09, 0x01, /* USAGE (Consumer Control) */ | |
378 | 0xA1, 0x01, /* COLLECTION (Application) */ | |
379 | 0x85, 0x03, /* REPORT_ID = 3 */ | |
380 | 0x75, 0x10, /* REPORT_SIZE (16) */ | |
381 | 0x95, 0x02, /* REPORT_COUNT (2) */ | |
382 | 0x15, 0x01, /* LOGICAL_MIN (1) */ | |
383 | 0x26, 0x8C, 0x02, /* LOGICAL_MAX (652) */ | |
384 | 0x19, 0x01, /* USAGE_MIN (1) */ | |
385 | 0x2A, 0x8C, 0x02, /* USAGE_MAX (652) */ | |
386 | 0x81, 0x00, /* INPUT (Data Ary Abs) */ | |
387 | 0xC0, /* END_COLLECTION */ | |
388 | }; /* */ | |
389 | ||
390 | /* System control descriptor (4) */ | |
391 | static const char syscontrol_descriptor[] = { | |
392 | 0x05, 0x01, /* USAGE_PAGE (Generic Desktop) */ | |
393 | 0x09, 0x80, /* USAGE (System Control) */ | |
394 | 0xA1, 0x01, /* COLLECTION (Application) */ | |
395 | 0x85, 0x04, /* REPORT_ID = 4 */ | |
396 | 0x75, 0x02, /* REPORT_SIZE (2) */ | |
397 | 0x95, 0x01, /* REPORT_COUNT (1) */ | |
398 | 0x15, 0x01, /* LOGICAL_MIN (1) */ | |
399 | 0x25, 0x03, /* LOGICAL_MAX (3) */ | |
400 | 0x09, 0x82, /* USAGE (System Sleep) */ | |
401 | 0x09, 0x81, /* USAGE (System Power Down) */ | |
402 | 0x09, 0x83, /* USAGE (System Wake Up) */ | |
403 | 0x81, 0x60, /* INPUT (Data Ary Abs NPrf Null) */ | |
404 | 0x75, 0x06, /* REPORT_SIZE (6) */ | |
405 | 0x81, 0x03, /* INPUT (Cnst Var Abs) */ | |
406 | 0xC0, /* END_COLLECTION */ | |
407 | }; | |
408 | ||
409 | /* Media descriptor (8) */ | |
410 | static const char media_descriptor[] = { | |
411 | 0x06, 0xbc, 0xff, /* Usage Page 0xffbc */ | |
412 | 0x09, 0x88, /* Usage 0x0088 */ | |
413 | 0xa1, 0x01, /* BeginCollection */ | |
414 | 0x85, 0x08, /* Report ID 8 */ | |
415 | 0x19, 0x01, /* Usage Min 0x0001 */ | |
416 | 0x29, 0xff, /* Usage Max 0x00ff */ | |
417 | 0x15, 0x01, /* Logical Min 1 */ | |
418 | 0x26, 0xff, 0x00, /* Logical Max 255 */ | |
419 | 0x75, 0x08, /* Report Size 8 */ | |
420 | 0x95, 0x01, /* Report Count 1 */ | |
421 | 0x81, 0x00, /* Input */ | |
422 | 0xc0, /* EndCollection */ | |
423 | }; /* */ | |
424 | ||
925f0f3e BT |
425 | /* HIDPP descriptor */ |
426 | static const char hidpp_descriptor[] = { | |
427 | 0x06, 0x00, 0xff, /* Usage Page (Vendor Defined Page 1) */ | |
428 | 0x09, 0x01, /* Usage (Vendor Usage 1) */ | |
429 | 0xa1, 0x01, /* Collection (Application) */ | |
430 | 0x85, 0x10, /* Report ID (16) */ | |
431 | 0x75, 0x08, /* Report Size (8) */ | |
432 | 0x95, 0x06, /* Report Count (6) */ | |
433 | 0x15, 0x00, /* Logical Minimum (0) */ | |
434 | 0x26, 0xff, 0x00, /* Logical Maximum (255) */ | |
435 | 0x09, 0x01, /* Usage (Vendor Usage 1) */ | |
436 | 0x81, 0x00, /* Input (Data,Arr,Abs) */ | |
437 | 0x09, 0x01, /* Usage (Vendor Usage 1) */ | |
438 | 0x91, 0x00, /* Output (Data,Arr,Abs) */ | |
439 | 0xc0, /* End Collection */ | |
440 | 0x06, 0x00, 0xff, /* Usage Page (Vendor Defined Page 1) */ | |
441 | 0x09, 0x02, /* Usage (Vendor Usage 2) */ | |
442 | 0xa1, 0x01, /* Collection (Application) */ | |
443 | 0x85, 0x11, /* Report ID (17) */ | |
444 | 0x75, 0x08, /* Report Size (8) */ | |
445 | 0x95, 0x13, /* Report Count (19) */ | |
446 | 0x15, 0x00, /* Logical Minimum (0) */ | |
447 | 0x26, 0xff, 0x00, /* Logical Maximum (255) */ | |
448 | 0x09, 0x02, /* Usage (Vendor Usage 2) */ | |
449 | 0x81, 0x00, /* Input (Data,Arr,Abs) */ | |
450 | 0x09, 0x02, /* Usage (Vendor Usage 2) */ | |
451 | 0x91, 0x00, /* Output (Data,Arr,Abs) */ | |
452 | 0xc0, /* End Collection */ | |
453 | 0x06, 0x00, 0xff, /* Usage Page (Vendor Defined Page 1) */ | |
454 | 0x09, 0x04, /* Usage (Vendor Usage 0x04) */ | |
455 | 0xa1, 0x01, /* Collection (Application) */ | |
456 | 0x85, 0x20, /* Report ID (32) */ | |
457 | 0x75, 0x08, /* Report Size (8) */ | |
458 | 0x95, 0x0e, /* Report Count (14) */ | |
459 | 0x15, 0x00, /* Logical Minimum (0) */ | |
460 | 0x26, 0xff, 0x00, /* Logical Maximum (255) */ | |
461 | 0x09, 0x41, /* Usage (Vendor Usage 0x41) */ | |
462 | 0x81, 0x00, /* Input (Data,Arr,Abs) */ | |
463 | 0x09, 0x41, /* Usage (Vendor Usage 0x41) */ | |
464 | 0x91, 0x00, /* Output (Data,Arr,Abs) */ | |
465 | 0x85, 0x21, /* Report ID (33) */ | |
466 | 0x95, 0x1f, /* Report Count (31) */ | |
467 | 0x15, 0x00, /* Logical Minimum (0) */ | |
468 | 0x26, 0xff, 0x00, /* Logical Maximum (255) */ | |
469 | 0x09, 0x42, /* Usage (Vendor Usage 0x42) */ | |
470 | 0x81, 0x00, /* Input (Data,Arr,Abs) */ | |
471 | 0x09, 0x42, /* Usage (Vendor Usage 0x42) */ | |
472 | 0x91, 0x00, /* Output (Data,Arr,Abs) */ | |
473 | 0xc0, /* End Collection */ | |
474 | }; | |
475 | ||
534a7b8e NLC |
476 | /* Maximum size of all defined hid reports in bytes (including report id) */ |
477 | #define MAX_REPORT_SIZE 8 | |
478 | ||
2a039bf5 HR |
479 | /* Make sure all descriptors are present here */ |
480 | #define MAX_RDESC_SIZE \ | |
481 | (sizeof(kbd_descriptor) + \ | |
f2113c30 | 482 | sizeof(mse_bluetooth_descriptor) + \ |
2a039bf5 HR |
483 | sizeof(consumer_descriptor) + \ |
484 | sizeof(syscontrol_descriptor) + \ | |
925f0f3e BT |
485 | sizeof(media_descriptor) + \ |
486 | sizeof(hidpp_descriptor)) | |
2a039bf5 | 487 | |
534a7b8e NLC |
488 | /* Number of possible hid report types that can be created by this driver. |
489 | * | |
490 | * Right now, RF report types have the same report types (or report id's) | |
491 | * than the hid report created from those RF reports. In the future | |
492 | * this doesnt have to be true. | |
493 | * | |
494 | * For instance, RF report type 0x01 which has a size of 8 bytes, corresponds | |
495 | * to hid report id 0x01, this is standard keyboard. Same thing applies to mice | |
496 | * reports and consumer control, etc. If a new RF report is created, it doesn't | |
497 | * has to have the same report id as its corresponding hid report, so an | |
498 | * translation may have to take place for future report types. | |
499 | */ | |
500 | #define NUMBER_OF_HID_REPORTS 32 | |
501 | static const u8 hid_reportid_size_map[NUMBER_OF_HID_REPORTS] = { | |
502 | [1] = 8, /* Standard keyboard */ | |
503 | [2] = 8, /* Standard mouse */ | |
504 | [3] = 5, /* Consumer control */ | |
505 | [4] = 2, /* System control */ | |
506 | [8] = 2, /* Media Center */ | |
507 | }; | |
508 | ||
509 | ||
510 | #define LOGITECH_DJ_INTERFACE_NUMBER 0x02 | |
511 | ||
534a7b8e NLC |
512 | static struct hid_ll_driver logi_dj_ll_driver; |
513 | ||
c63e0e37 | 514 | static int logi_dj_recv_query_paired_devices(struct dj_receiver_dev *djrcv_dev); |
a1d97ccb HG |
515 | static void delayedwork_callback(struct work_struct *work); |
516 | ||
517 | static LIST_HEAD(dj_hdev_list); | |
518 | static DEFINE_MUTEX(dj_hdev_list_lock); | |
519 | ||
520 | /* | |
521 | * dj/HID++ receivers are really a single logical entity, but for BIOS/Windows | |
522 | * compatibility they have multiple USB interfaces. On HID++ receivers we need | |
523 | * to listen for input reports on both interfaces. The functions below are used | |
524 | * to create a single struct dj_receiver_dev for all interfaces belonging to | |
525 | * a single USB-device / receiver. | |
526 | */ | |
f2113c30 HG |
527 | static struct dj_receiver_dev *dj_find_receiver_dev(struct hid_device *hdev, |
528 | enum recvr_type type) | |
a1d97ccb HG |
529 | { |
530 | struct dj_receiver_dev *djrcv_dev; | |
f2113c30 HG |
531 | char sep; |
532 | ||
533 | /* | |
534 | * The bluetooth receiver contains a built-in hub and has separate | |
535 | * USB-devices for the keyboard and mouse interfaces. | |
536 | */ | |
537 | sep = (type == recvr_type_bluetooth) ? '.' : '/'; | |
a1d97ccb HG |
538 | |
539 | /* Try to find an already-probed interface from the same device */ | |
540 | list_for_each_entry(djrcv_dev, &dj_hdev_list, list) { | |
541 | if (djrcv_dev->mouse && | |
f2113c30 | 542 | hid_compare_device_paths(hdev, djrcv_dev->mouse, sep)) { |
a1d97ccb HG |
543 | kref_get(&djrcv_dev->kref); |
544 | return djrcv_dev; | |
545 | } | |
546 | if (djrcv_dev->keyboard && | |
f2113c30 | 547 | hid_compare_device_paths(hdev, djrcv_dev->keyboard, sep)) { |
a1d97ccb HG |
548 | kref_get(&djrcv_dev->kref); |
549 | return djrcv_dev; | |
550 | } | |
551 | if (djrcv_dev->hidpp && | |
f2113c30 | 552 | hid_compare_device_paths(hdev, djrcv_dev->hidpp, sep)) { |
a1d97ccb HG |
553 | kref_get(&djrcv_dev->kref); |
554 | return djrcv_dev; | |
555 | } | |
556 | } | |
557 | ||
558 | return NULL; | |
559 | } | |
560 | ||
561 | static void dj_release_receiver_dev(struct kref *kref) | |
562 | { | |
563 | struct dj_receiver_dev *djrcv_dev = container_of(kref, struct dj_receiver_dev, kref); | |
564 | ||
565 | list_del(&djrcv_dev->list); | |
566 | kfifo_free(&djrcv_dev->notif_fifo); | |
567 | kfree(djrcv_dev); | |
568 | } | |
569 | ||
570 | static void dj_put_receiver_dev(struct hid_device *hdev) | |
571 | { | |
572 | struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev); | |
573 | ||
574 | mutex_lock(&dj_hdev_list_lock); | |
575 | ||
576 | if (djrcv_dev->mouse == hdev) | |
577 | djrcv_dev->mouse = NULL; | |
578 | if (djrcv_dev->keyboard == hdev) | |
579 | djrcv_dev->keyboard = NULL; | |
580 | if (djrcv_dev->hidpp == hdev) | |
581 | djrcv_dev->hidpp = NULL; | |
582 | ||
583 | kref_put(&djrcv_dev->kref, dj_release_receiver_dev); | |
584 | ||
585 | mutex_unlock(&dj_hdev_list_lock); | |
586 | } | |
587 | ||
588 | static struct dj_receiver_dev *dj_get_receiver_dev(struct hid_device *hdev, | |
74808f91 | 589 | enum recvr_type type, |
a1d97ccb HG |
590 | unsigned int application, |
591 | bool is_hidpp) | |
592 | { | |
593 | struct dj_receiver_dev *djrcv_dev; | |
594 | ||
595 | mutex_lock(&dj_hdev_list_lock); | |
596 | ||
f2113c30 | 597 | djrcv_dev = dj_find_receiver_dev(hdev, type); |
a1d97ccb HG |
598 | if (!djrcv_dev) { |
599 | djrcv_dev = kzalloc(sizeof(*djrcv_dev), GFP_KERNEL); | |
600 | if (!djrcv_dev) | |
601 | goto out; | |
602 | ||
603 | INIT_WORK(&djrcv_dev->work, delayedwork_callback); | |
604 | spin_lock_init(&djrcv_dev->lock); | |
605 | if (kfifo_alloc(&djrcv_dev->notif_fifo, | |
606 | DJ_MAX_NUMBER_NOTIFS * sizeof(struct dj_workitem), | |
607 | GFP_KERNEL)) { | |
608 | kfree(djrcv_dev); | |
609 | djrcv_dev = NULL; | |
610 | goto out; | |
611 | } | |
612 | kref_init(&djrcv_dev->kref); | |
613 | list_add_tail(&djrcv_dev->list, &dj_hdev_list); | |
b6aeedde | 614 | djrcv_dev->last_query = jiffies; |
74808f91 | 615 | djrcv_dev->type = type; |
a1d97ccb HG |
616 | } |
617 | ||
618 | if (application == HID_GD_KEYBOARD) | |
619 | djrcv_dev->keyboard = hdev; | |
620 | if (application == HID_GD_MOUSE) | |
621 | djrcv_dev->mouse = hdev; | |
622 | if (is_hidpp) | |
623 | djrcv_dev->hidpp = hdev; | |
624 | ||
625 | hid_set_drvdata(hdev, djrcv_dev); | |
626 | out: | |
627 | mutex_unlock(&dj_hdev_list_lock); | |
628 | return djrcv_dev; | |
629 | } | |
534a7b8e NLC |
630 | |
631 | static void logi_dj_recv_destroy_djhid_device(struct dj_receiver_dev *djrcv_dev, | |
4fcad95a | 632 | struct dj_workitem *workitem) |
534a7b8e NLC |
633 | { |
634 | /* Called in delayed work context */ | |
635 | struct dj_device *dj_dev; | |
636 | unsigned long flags; | |
637 | ||
638 | spin_lock_irqsave(&djrcv_dev->lock, flags); | |
4fcad95a BT |
639 | dj_dev = djrcv_dev->paired_dj_devices[workitem->device_index]; |
640 | djrcv_dev->paired_dj_devices[workitem->device_index] = NULL; | |
534a7b8e NLC |
641 | spin_unlock_irqrestore(&djrcv_dev->lock, flags); |
642 | ||
643 | if (dj_dev != NULL) { | |
644 | hid_destroy_device(dj_dev->hdev); | |
645 | kfree(dj_dev); | |
646 | } else { | |
0ee75544 | 647 | hid_err(djrcv_dev->hidpp, "%s: can't destroy a NULL device\n", |
534a7b8e NLC |
648 | __func__); |
649 | } | |
650 | } | |
651 | ||
652 | static void logi_dj_recv_add_djhid_device(struct dj_receiver_dev *djrcv_dev, | |
4fcad95a | 653 | struct dj_workitem *workitem) |
534a7b8e NLC |
654 | { |
655 | /* Called in delayed work context */ | |
0ee75544 | 656 | struct hid_device *djrcv_hdev = djrcv_dev->hidpp; |
534a7b8e NLC |
657 | struct hid_device *dj_hiddev; |
658 | struct dj_device *dj_dev; | |
4fcad95a | 659 | u8 device_index = workitem->device_index; |
f41d766c | 660 | unsigned long flags; |
534a7b8e NLC |
661 | |
662 | /* Device index goes from 1 to 6, we need 3 bytes to store the | |
663 | * semicolon, the index, and a null terminator | |
664 | */ | |
665 | unsigned char tmpstr[3]; | |
666 | ||
f41d766c | 667 | /* We are the only one ever adding a device, no need to lock */ |
4fcad95a | 668 | if (djrcv_dev->paired_dj_devices[device_index]) { |
c63e0e37 NLC |
669 | /* The device is already known. No need to reallocate it. */ |
670 | dbg_hid("%s: device is already known\n", __func__); | |
671 | return; | |
672 | } | |
673 | ||
534a7b8e NLC |
674 | dj_hiddev = hid_allocate_device(); |
675 | if (IS_ERR(dj_hiddev)) { | |
aca22a35 | 676 | hid_err(djrcv_hdev, "%s: hid_allocate_dev failed\n", __func__); |
534a7b8e NLC |
677 | return; |
678 | } | |
679 | ||
680 | dj_hiddev->ll_driver = &logi_dj_ll_driver; | |
534a7b8e NLC |
681 | |
682 | dj_hiddev->dev.parent = &djrcv_hdev->dev; | |
683 | dj_hiddev->bus = BUS_USB; | |
82c0beb8 | 684 | dj_hiddev->vendor = djrcv_hdev->vendor; |
4fcad95a BT |
685 | dj_hiddev->product = (workitem->quad_id_msb << 8) | |
686 | workitem->quad_id_lsb; | |
de76b1d3 HG |
687 | if (workitem->device_type) { |
688 | const char *type_str = "Device"; | |
689 | ||
690 | switch (workitem->device_type) { | |
691 | case 0x01: type_str = "Keyboard"; break; | |
692 | case 0x02: type_str = "Mouse"; break; | |
693 | case 0x03: type_str = "Numpad"; break; | |
694 | case 0x04: type_str = "Presenter"; break; | |
695 | case 0x07: type_str = "Remote Control"; break; | |
696 | case 0x08: type_str = "Trackball"; break; | |
697 | case 0x09: type_str = "Touchpad"; break; | |
698 | } | |
699 | snprintf(dj_hiddev->name, sizeof(dj_hiddev->name), | |
700 | "Logitech Wireless %s PID:%04x", | |
701 | type_str, dj_hiddev->product); | |
702 | } else { | |
703 | snprintf(dj_hiddev->name, sizeof(dj_hiddev->name), | |
704 | "Logitech Unifying Device. Wireless PID:%04x", | |
705 | dj_hiddev->product); | |
706 | } | |
d610274b | 707 | |
c9121cf6 HG |
708 | if (djrcv_dev->type == recvr_type_27mhz) |
709 | dj_hiddev->group = HID_GROUP_LOGITECH_27MHZ_DEVICE; | |
710 | else | |
711 | dj_hiddev->group = HID_GROUP_LOGITECH_DJ_DEVICE; | |
534a7b8e | 712 | |
82c0beb8 | 713 | memcpy(dj_hiddev->phys, djrcv_hdev->phys, sizeof(djrcv_hdev->phys)); |
4fcad95a | 714 | snprintf(tmpstr, sizeof(tmpstr), ":%d", device_index); |
534a7b8e NLC |
715 | strlcat(dj_hiddev->phys, tmpstr, sizeof(dj_hiddev->phys)); |
716 | ||
717 | dj_dev = kzalloc(sizeof(struct dj_device), GFP_KERNEL); | |
718 | ||
719 | if (!dj_dev) { | |
aca22a35 | 720 | hid_err(djrcv_hdev, "%s: failed allocating dj_dev\n", __func__); |
534a7b8e NLC |
721 | goto dj_device_allocate_fail; |
722 | } | |
723 | ||
4fcad95a | 724 | dj_dev->reports_supported = workitem->reports_supported; |
534a7b8e NLC |
725 | dj_dev->hdev = dj_hiddev; |
726 | dj_dev->dj_receiver_dev = djrcv_dev; | |
4fcad95a | 727 | dj_dev->device_index = device_index; |
534a7b8e NLC |
728 | dj_hiddev->driver_data = dj_dev; |
729 | ||
f41d766c | 730 | spin_lock_irqsave(&djrcv_dev->lock, flags); |
4fcad95a | 731 | djrcv_dev->paired_dj_devices[device_index] = dj_dev; |
f41d766c | 732 | spin_unlock_irqrestore(&djrcv_dev->lock, flags); |
534a7b8e NLC |
733 | |
734 | if (hid_add_device(dj_hiddev)) { | |
aca22a35 | 735 | hid_err(djrcv_hdev, "%s: failed adding dj_device\n", __func__); |
534a7b8e NLC |
736 | goto hid_add_device_fail; |
737 | } | |
738 | ||
739 | return; | |
740 | ||
741 | hid_add_device_fail: | |
f41d766c | 742 | spin_lock_irqsave(&djrcv_dev->lock, flags); |
4fcad95a | 743 | djrcv_dev->paired_dj_devices[device_index] = NULL; |
f41d766c | 744 | spin_unlock_irqrestore(&djrcv_dev->lock, flags); |
534a7b8e NLC |
745 | kfree(dj_dev); |
746 | dj_device_allocate_fail: | |
747 | hid_destroy_device(dj_hiddev); | |
748 | } | |
749 | ||
750 | static void delayedwork_callback(struct work_struct *work) | |
751 | { | |
752 | struct dj_receiver_dev *djrcv_dev = | |
753 | container_of(work, struct dj_receiver_dev, work); | |
754 | ||
4fcad95a | 755 | struct dj_workitem workitem; |
534a7b8e NLC |
756 | unsigned long flags; |
757 | int count; | |
c63e0e37 | 758 | int retval; |
534a7b8e NLC |
759 | |
760 | dbg_hid("%s\n", __func__); | |
761 | ||
762 | spin_lock_irqsave(&djrcv_dev->lock, flags); | |
763 | ||
a1d97ccb HG |
764 | /* |
765 | * Since we attach to multiple interfaces, we may get scheduled before | |
766 | * we are bound to the HID++ interface, catch this. | |
767 | */ | |
768 | if (!djrcv_dev->ready) { | |
769 | pr_warn("%s: delayedwork queued before hidpp interface was enumerated\n", | |
770 | __func__); | |
771 | spin_unlock_irqrestore(&djrcv_dev->lock, flags); | |
772 | return; | |
773 | } | |
774 | ||
4fcad95a | 775 | count = kfifo_out(&djrcv_dev->notif_fifo, &workitem, sizeof(workitem)); |
534a7b8e | 776 | |
4fcad95a | 777 | if (count != sizeof(workitem)) { |
534a7b8e NLC |
778 | spin_unlock_irqrestore(&djrcv_dev->lock, flags); |
779 | return; | |
780 | } | |
781 | ||
e316aa6e HG |
782 | if (!kfifo_is_empty(&djrcv_dev->notif_fifo)) |
783 | schedule_work(&djrcv_dev->work); | |
534a7b8e NLC |
784 | |
785 | spin_unlock_irqrestore(&djrcv_dev->lock, flags); | |
786 | ||
4fcad95a BT |
787 | switch (workitem.type) { |
788 | case WORKITEM_TYPE_PAIRED: | |
789 | logi_dj_recv_add_djhid_device(djrcv_dev, &workitem); | |
534a7b8e | 790 | break; |
4fcad95a BT |
791 | case WORKITEM_TYPE_UNPAIRED: |
792 | logi_dj_recv_destroy_djhid_device(djrcv_dev, &workitem); | |
793 | break; | |
794 | case WORKITEM_TYPE_UNKNOWN: | |
795 | retval = logi_dj_recv_query_paired_devices(djrcv_dev); | |
796 | if (retval) { | |
0ee75544 | 797 | hid_err(djrcv_dev->hidpp, "%s: logi_dj_recv_query_paired_devices error: %d\n", |
4fcad95a BT |
798 | __func__, retval); |
799 | } | |
800 | break; | |
801 | case WORKITEM_TYPE_EMPTY: | |
802 | dbg_hid("%s: device list is empty\n", __func__); | |
803 | break; | |
804 | } | |
805 | } | |
806 | ||
b6aeedde HG |
807 | /* |
808 | * Sometimes we receive reports for which we do not have a paired dj_device | |
809 | * associated with the device_index or report-type to forward the report to. | |
810 | * This means that the original "device paired" notification corresponding | |
811 | * to the dj_device never arrived to this driver. Possible reasons for this are: | |
812 | * 1) hid-core discards all packets coming from a device during probe(). | |
813 | * 2) if the receiver is plugged into a KVM switch then the pairing reports | |
814 | * are only forwarded to it if the focus is on this PC. | |
815 | * This function deals with this by re-asking the receiver for the list of | |
816 | * connected devices in the delayed work callback. | |
817 | * This function MUST be called with djrcv->lock held. | |
818 | */ | |
819 | static void logi_dj_recv_queue_unknown_work(struct dj_receiver_dev *djrcv_dev) | |
820 | { | |
821 | struct dj_workitem workitem = { .type = WORKITEM_TYPE_UNKNOWN }; | |
822 | ||
823 | /* Rate limit queries done because of unhandeled reports to 2/sec */ | |
824 | if (time_before(jiffies, djrcv_dev->last_query + HZ / 2)) | |
825 | return; | |
826 | ||
827 | kfifo_in(&djrcv_dev->notif_fifo, &workitem, sizeof(workitem)); | |
828 | schedule_work(&djrcv_dev->work); | |
829 | } | |
830 | ||
4fcad95a BT |
831 | static void logi_dj_recv_queue_notification(struct dj_receiver_dev *djrcv_dev, |
832 | struct dj_report *dj_report) | |
833 | { | |
834 | /* We are called from atomic context (tasklet && djrcv->lock held) */ | |
835 | struct dj_workitem workitem = { | |
836 | .device_index = dj_report->device_index, | |
837 | }; | |
838 | ||
839 | switch (dj_report->report_type) { | |
840 | case REPORT_TYPE_NOTIF_DEVICE_PAIRED: | |
841 | workitem.type = WORKITEM_TYPE_PAIRED; | |
842 | if (dj_report->report_params[DEVICE_PAIRED_PARAM_SPFUNCTION] & | |
843 | SPFUNCTION_DEVICE_LIST_EMPTY) { | |
844 | workitem.type = WORKITEM_TYPE_EMPTY; | |
845 | break; | |
846 | } | |
847 | /* fall-through */ | |
534a7b8e | 848 | case REPORT_TYPE_NOTIF_DEVICE_UNPAIRED: |
4fcad95a BT |
849 | workitem.quad_id_msb = |
850 | dj_report->report_params[DEVICE_PAIRED_PARAM_EQUAD_ID_MSB]; | |
851 | workitem.quad_id_lsb = | |
852 | dj_report->report_params[DEVICE_PAIRED_PARAM_EQUAD_ID_LSB]; | |
853 | workitem.reports_supported = get_unaligned_le32( | |
854 | dj_report->report_params + | |
855 | DEVICE_PAIRED_RF_REPORT_TYPE); | |
6d3c3f03 | 856 | workitem.reports_supported |= HIDPP; |
4fcad95a BT |
857 | if (dj_report->report_type == REPORT_TYPE_NOTIF_DEVICE_UNPAIRED) |
858 | workitem.type = WORKITEM_TYPE_UNPAIRED; | |
534a7b8e NLC |
859 | break; |
860 | default: | |
b6aeedde HG |
861 | logi_dj_recv_queue_unknown_work(djrcv_dev); |
862 | return; | |
534a7b8e | 863 | } |
534a7b8e | 864 | |
4fcad95a | 865 | kfifo_in(&djrcv_dev->notif_fifo, &workitem, sizeof(workitem)); |
e316aa6e | 866 | schedule_work(&djrcv_dev->work); |
534a7b8e NLC |
867 | } |
868 | ||
3ed224e2 HG |
869 | static void logi_hidpp_dev_conn_notif_equad(struct hid_device *hdev, |
870 | struct hidpp_event *hidpp_report, | |
74808f91 HG |
871 | struct dj_workitem *workitem) |
872 | { | |
3ed224e2 HG |
873 | struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev); |
874 | ||
74808f91 | 875 | workitem->type = WORKITEM_TYPE_PAIRED; |
de76b1d3 HG |
876 | workitem->device_type = hidpp_report->params[HIDPP_PARAM_DEVICE_INFO] & |
877 | HIDPP_DEVICE_TYPE_MASK; | |
74808f91 HG |
878 | workitem->quad_id_msb = hidpp_report->params[HIDPP_PARAM_EQUAD_MSB]; |
879 | workitem->quad_id_lsb = hidpp_report->params[HIDPP_PARAM_EQUAD_LSB]; | |
de76b1d3 | 880 | switch (workitem->device_type) { |
74808f91 HG |
881 | case REPORT_TYPE_KEYBOARD: |
882 | workitem->reports_supported |= STD_KEYBOARD | MULTIMEDIA | | |
6d3c3f03 HG |
883 | POWER_KEYS | MEDIA_CENTER | |
884 | HIDPP; | |
74808f91 HG |
885 | break; |
886 | case REPORT_TYPE_MOUSE: | |
6d3c3f03 | 887 | workitem->reports_supported |= STD_MOUSE | HIDPP; |
3ed224e2 HG |
888 | if (djrcv_dev->type == recvr_type_mouse_only) |
889 | workitem->reports_supported |= MULTIMEDIA; | |
74808f91 HG |
890 | break; |
891 | } | |
892 | } | |
893 | ||
c9121cf6 HG |
894 | static void logi_hidpp_dev_conn_notif_27mhz(struct hid_device *hdev, |
895 | struct hidpp_event *hidpp_report, | |
896 | struct dj_workitem *workitem) | |
897 | { | |
898 | workitem->type = WORKITEM_TYPE_PAIRED; | |
899 | workitem->quad_id_lsb = hidpp_report->params[HIDPP_PARAM_27MHZ_DEVID]; | |
900 | switch (hidpp_report->device_index) { | |
901 | case 1: /* Index 1 is always a mouse */ | |
902 | case 2: /* Index 2 is always a mouse */ | |
de76b1d3 | 903 | workitem->device_type = HIDPP_DEVICE_TYPE_MOUSE; |
6d3c3f03 | 904 | workitem->reports_supported |= STD_MOUSE | HIDPP; |
c9121cf6 HG |
905 | break; |
906 | case 3: /* Index 3 is always the keyboard */ | |
907 | case 4: /* Index 4 is used for an optional separate numpad */ | |
de76b1d3 | 908 | workitem->device_type = HIDPP_DEVICE_TYPE_KEYBOARD; |
c9121cf6 | 909 | workitem->reports_supported |= STD_KEYBOARD | MULTIMEDIA | |
6d3c3f03 | 910 | POWER_KEYS | HIDPP; |
c9121cf6 HG |
911 | break; |
912 | default: | |
913 | hid_warn(hdev, "%s: unexpected device-index %d", __func__, | |
914 | hidpp_report->device_index); | |
915 | } | |
916 | } | |
917 | ||
74808f91 HG |
918 | static void logi_hidpp_recv_queue_notif(struct hid_device *hdev, |
919 | struct hidpp_event *hidpp_report) | |
920 | { | |
921 | /* We are called from atomic context (tasklet && djrcv->lock held) */ | |
922 | struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev); | |
923 | const char *device_type = "UNKNOWN"; | |
924 | struct dj_workitem workitem = { | |
925 | .type = WORKITEM_TYPE_EMPTY, | |
926 | .device_index = hidpp_report->device_index, | |
927 | }; | |
928 | ||
929 | switch (hidpp_report->params[HIDPP_PARAM_PROTO_TYPE]) { | |
930 | case 0x01: | |
931 | device_type = "Bluetooth"; | |
f2113c30 | 932 | /* Bluetooth connect packet contents is the same as (e)QUAD */ |
3ed224e2 | 933 | logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem); |
f2113c30 HG |
934 | if (!(hidpp_report->params[HIDPP_PARAM_DEVICE_INFO] & |
935 | HIDPP_MANUFACTURER_MASK)) { | |
936 | hid_info(hdev, "Non Logitech device connected on slot %d\n", | |
937 | hidpp_report->device_index); | |
938 | workitem.reports_supported &= ~HIDPP; | |
939 | } | |
74808f91 HG |
940 | break; |
941 | case 0x02: | |
942 | device_type = "27 Mhz"; | |
c9121cf6 | 943 | logi_hidpp_dev_conn_notif_27mhz(hdev, hidpp_report, &workitem); |
74808f91 HG |
944 | break; |
945 | case 0x03: | |
946 | device_type = "QUAD or eQUAD"; | |
3ed224e2 | 947 | logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem); |
74808f91 HG |
948 | break; |
949 | case 0x04: | |
950 | device_type = "eQUAD step 4 DJ"; | |
3ed224e2 | 951 | logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem); |
74808f91 HG |
952 | break; |
953 | case 0x05: | |
954 | device_type = "DFU Lite"; | |
955 | break; | |
956 | case 0x06: | |
957 | device_type = "eQUAD step 4 Lite"; | |
3ed224e2 | 958 | logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem); |
74808f91 HG |
959 | break; |
960 | case 0x07: | |
961 | device_type = "eQUAD step 4 Gaming"; | |
962 | break; | |
963 | case 0x08: | |
964 | device_type = "eQUAD step 4 for gamepads"; | |
965 | break; | |
966 | case 0x0a: | |
967 | device_type = "eQUAD nano Lite"; | |
3ed224e2 | 968 | logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem); |
74808f91 HG |
969 | break; |
970 | case 0x0c: | |
971 | device_type = "eQUAD Lightspeed"; | |
3ed224e2 | 972 | logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem); |
f5fb57a7 | 973 | workitem.reports_supported |= STD_KEYBOARD; |
74808f91 HG |
974 | break; |
975 | } | |
976 | ||
977 | if (workitem.type == WORKITEM_TYPE_EMPTY) { | |
978 | hid_warn(hdev, | |
979 | "unusable device of type %s (0x%02x) connected on slot %d", | |
980 | device_type, | |
981 | hidpp_report->params[HIDPP_PARAM_PROTO_TYPE], | |
982 | hidpp_report->device_index); | |
983 | return; | |
984 | } | |
985 | ||
986 | hid_info(hdev, "device of type %s (0x%02x) connected on slot %d", | |
987 | device_type, hidpp_report->params[HIDPP_PARAM_PROTO_TYPE], | |
988 | hidpp_report->device_index); | |
989 | ||
74808f91 | 990 | kfifo_in(&djrcv_dev->notif_fifo, &workitem, sizeof(workitem)); |
e316aa6e | 991 | schedule_work(&djrcv_dev->work); |
74808f91 HG |
992 | } |
993 | ||
534a7b8e NLC |
994 | static void logi_dj_recv_forward_null_report(struct dj_receiver_dev *djrcv_dev, |
995 | struct dj_report *dj_report) | |
996 | { | |
997 | /* We are called from atomic context (tasklet && djrcv->lock held) */ | |
998 | unsigned int i; | |
999 | u8 reportbuffer[MAX_REPORT_SIZE]; | |
1000 | struct dj_device *djdev; | |
1001 | ||
1002 | djdev = djrcv_dev->paired_dj_devices[dj_report->device_index]; | |
1003 | ||
534a7b8e NLC |
1004 | memset(reportbuffer, 0, sizeof(reportbuffer)); |
1005 | ||
1006 | for (i = 0; i < NUMBER_OF_HID_REPORTS; i++) { | |
1007 | if (djdev->reports_supported & (1 << i)) { | |
1008 | reportbuffer[0] = i; | |
1009 | if (hid_input_report(djdev->hdev, | |
1010 | HID_INPUT_REPORT, | |
1011 | reportbuffer, | |
1012 | hid_reportid_size_map[i], 1)) { | |
1013 | dbg_hid("hid_input_report error sending null " | |
1014 | "report\n"); | |
1015 | } | |
1016 | } | |
1017 | } | |
1018 | } | |
1019 | ||
83898234 BT |
1020 | static void logi_dj_recv_forward_dj(struct dj_receiver_dev *djrcv_dev, |
1021 | struct dj_report *dj_report) | |
534a7b8e NLC |
1022 | { |
1023 | /* We are called from atomic context (tasklet && djrcv->lock held) */ | |
1024 | struct dj_device *dj_device; | |
1025 | ||
1026 | dj_device = djrcv_dev->paired_dj_devices[dj_report->device_index]; | |
1027 | ||
534a7b8e NLC |
1028 | if ((dj_report->report_type > ARRAY_SIZE(hid_reportid_size_map) - 1) || |
1029 | (hid_reportid_size_map[dj_report->report_type] == 0)) { | |
1030 | dbg_hid("invalid report type:%x\n", dj_report->report_type); | |
1031 | return; | |
1032 | } | |
1033 | ||
1034 | if (hid_input_report(dj_device->hdev, | |
1035 | HID_INPUT_REPORT, &dj_report->report_type, | |
1036 | hid_reportid_size_map[dj_report->report_type], 1)) { | |
1037 | dbg_hid("hid_input_report error\n"); | |
1038 | } | |
1039 | } | |
1040 | ||
83898234 BT |
1041 | static void logi_dj_recv_forward_report(struct dj_device *dj_dev, u8 *data, |
1042 | int size) | |
925f0f3e BT |
1043 | { |
1044 | /* We are called from atomic context (tasklet && djrcv->lock held) */ | |
1045 | if (hid_input_report(dj_dev->hdev, HID_INPUT_REPORT, data, size, 1)) | |
1046 | dbg_hid("hid_input_report error\n"); | |
1047 | } | |
534a7b8e | 1048 | |
74808f91 HG |
1049 | static void logi_dj_recv_forward_input_report(struct hid_device *hdev, |
1050 | u8 *data, int size) | |
1051 | { | |
1052 | struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev); | |
1053 | struct dj_device *dj_dev; | |
1054 | unsigned long flags; | |
1055 | u8 report = data[0]; | |
1056 | int i; | |
1057 | ||
1058 | if (report > REPORT_TYPE_RFREPORT_LAST) { | |
640d4ea8 | 1059 | hid_err(hdev, "Unexpected input report number %d\n", report); |
74808f91 HG |
1060 | return; |
1061 | } | |
1062 | ||
1063 | spin_lock_irqsave(&djrcv_dev->lock, flags); | |
1064 | for (i = 0; i < (DJ_MAX_PAIRED_DEVICES + DJ_DEVICE_INDEX_MIN); i++) { | |
1065 | dj_dev = djrcv_dev->paired_dj_devices[i]; | |
1066 | if (dj_dev && (dj_dev->reports_supported & BIT(report))) { | |
1067 | logi_dj_recv_forward_report(dj_dev, data, size); | |
1068 | spin_unlock_irqrestore(&djrcv_dev->lock, flags); | |
1069 | return; | |
1070 | } | |
1071 | } | |
1072 | ||
1073 | logi_dj_recv_queue_unknown_work(djrcv_dev); | |
1074 | spin_unlock_irqrestore(&djrcv_dev->lock, flags); | |
1075 | ||
1076 | dbg_hid("No dj-devs handling input report number %d\n", report); | |
1077 | } | |
1078 | ||
534a7b8e NLC |
1079 | static int logi_dj_recv_send_report(struct dj_receiver_dev *djrcv_dev, |
1080 | struct dj_report *dj_report) | |
1081 | { | |
0ee75544 | 1082 | struct hid_device *hdev = djrcv_dev->hidpp; |
dcd9006b BT |
1083 | struct hid_report *report; |
1084 | struct hid_report_enum *output_report_enum; | |
1085 | u8 *data = (u8 *)(&dj_report->device_index); | |
297502ab | 1086 | unsigned int i; |
534a7b8e | 1087 | |
dcd9006b BT |
1088 | output_report_enum = &hdev->report_enum[HID_OUTPUT_REPORT]; |
1089 | report = output_report_enum->report_id_hash[REPORT_ID_DJ_SHORT]; | |
1090 | ||
1091 | if (!report) { | |
aca22a35 | 1092 | hid_err(hdev, "%s: unable to find dj report\n", __func__); |
534a7b8e NLC |
1093 | return -ENODEV; |
1094 | } | |
1095 | ||
297502ab | 1096 | for (i = 0; i < DJREPORT_SHORT_LENGTH - 1; i++) |
dcd9006b BT |
1097 | report->field[0]->value[i] = data[i]; |
1098 | ||
83a44ac8 | 1099 | hid_hw_request(hdev, report, HID_REQ_SET_REPORT); |
534a7b8e | 1100 | |
dcd9006b | 1101 | return 0; |
534a7b8e NLC |
1102 | } |
1103 | ||
74808f91 HG |
1104 | static int logi_dj_recv_query_hidpp_devices(struct dj_receiver_dev *djrcv_dev) |
1105 | { | |
39d21e7e CIK |
1106 | static const u8 template[] = { |
1107 | REPORT_ID_HIDPP_SHORT, | |
1108 | HIDPP_RECEIVER_INDEX, | |
1109 | HIDPP_SET_REGISTER, | |
1110 | HIDPP_REG_CONNECTION_STATE, | |
1111 | HIDPP_FAKE_DEVICE_ARRIVAL, | |
1112 | 0x00, 0x00 | |
1113 | }; | |
74808f91 HG |
1114 | u8 *hidpp_report; |
1115 | int retval; | |
1116 | ||
1117 | hidpp_report = kmemdup(template, sizeof(template), GFP_KERNEL); | |
1118 | if (!hidpp_report) | |
1119 | return -ENOMEM; | |
1120 | ||
1121 | retval = hid_hw_raw_request(djrcv_dev->hidpp, | |
1122 | REPORT_ID_HIDPP_SHORT, | |
1123 | hidpp_report, sizeof(template), | |
1124 | HID_OUTPUT_REPORT, | |
1125 | HID_REQ_SET_REPORT); | |
1126 | ||
1127 | kfree(hidpp_report); | |
6fb08f1a | 1128 | return (retval < 0) ? retval : 0; |
74808f91 HG |
1129 | } |
1130 | ||
534a7b8e NLC |
1131 | static int logi_dj_recv_query_paired_devices(struct dj_receiver_dev *djrcv_dev) |
1132 | { | |
d8dc3494 MD |
1133 | struct dj_report *dj_report; |
1134 | int retval; | |
534a7b8e | 1135 | |
b6aeedde HG |
1136 | djrcv_dev->last_query = jiffies; |
1137 | ||
74808f91 HG |
1138 | if (djrcv_dev->type != recvr_type_dj) |
1139 | return logi_dj_recv_query_hidpp_devices(djrcv_dev); | |
1140 | ||
8a55ade7 | 1141 | dj_report = kzalloc(sizeof(struct dj_report), GFP_KERNEL); |
d8dc3494 MD |
1142 | if (!dj_report) |
1143 | return -ENOMEM; | |
1144 | dj_report->report_id = REPORT_ID_DJ_SHORT; | |
1145 | dj_report->device_index = 0xFF; | |
1146 | dj_report->report_type = REPORT_TYPE_CMD_GET_PAIRED_DEVICES; | |
1147 | retval = logi_dj_recv_send_report(djrcv_dev, dj_report); | |
1148 | kfree(dj_report); | |
1149 | return retval; | |
534a7b8e NLC |
1150 | } |
1151 | ||
c63e0e37 | 1152 | |
534a7b8e NLC |
1153 | static int logi_dj_recv_switch_to_dj_mode(struct dj_receiver_dev *djrcv_dev, |
1154 | unsigned timeout) | |
1155 | { | |
0ee75544 | 1156 | struct hid_device *hdev = djrcv_dev->hidpp; |
d8dc3494 | 1157 | struct dj_report *dj_report; |
6a9ddc89 | 1158 | u8 *buf; |
74808f91 | 1159 | int retval = 0; |
534a7b8e | 1160 | |
8a55ade7 | 1161 | dj_report = kzalloc(sizeof(struct dj_report), GFP_KERNEL); |
d8dc3494 MD |
1162 | if (!dj_report) |
1163 | return -ENOMEM; | |
42c22dbf | 1164 | |
74808f91 HG |
1165 | if (djrcv_dev->type == recvr_type_dj) { |
1166 | dj_report->report_id = REPORT_ID_DJ_SHORT; | |
1167 | dj_report->device_index = 0xFF; | |
1168 | dj_report->report_type = REPORT_TYPE_CMD_SWITCH; | |
1169 | dj_report->report_params[CMD_SWITCH_PARAM_DEVBITFIELD] = 0x3F; | |
1170 | dj_report->report_params[CMD_SWITCH_PARAM_TIMEOUT_SECONDS] = | |
1171 | (u8)timeout; | |
1172 | ||
1173 | retval = logi_dj_recv_send_report(djrcv_dev, dj_report); | |
1174 | ||
1175 | /* | |
1176 | * Ugly sleep to work around a USB 3.0 bug when the receiver is | |
1177 | * still processing the "switch-to-dj" command while we send an | |
1178 | * other command. | |
1179 | * 50 msec should gives enough time to the receiver to be ready. | |
1180 | */ | |
1181 | msleep(50); | |
1182 | } | |
42c22dbf | 1183 | |
6a9ddc89 BT |
1184 | /* |
1185 | * Magical bits to set up hidpp notifications when the dj devices | |
1186 | * are connected/disconnected. | |
1187 | * | |
1188 | * We can reuse dj_report because HIDPP_REPORT_SHORT_LENGTH is smaller | |
1189 | * than DJREPORT_SHORT_LENGTH. | |
1190 | */ | |
1191 | buf = (u8 *)dj_report; | |
1192 | ||
1193 | memset(buf, 0, HIDPP_REPORT_SHORT_LENGTH); | |
1194 | ||
1195 | buf[0] = REPORT_ID_HIDPP_SHORT; | |
1196 | buf[1] = 0xFF; | |
1197 | buf[2] = 0x80; | |
1198 | buf[3] = 0x00; | |
1199 | buf[4] = 0x00; | |
1200 | buf[5] = 0x09; | |
1201 | buf[6] = 0x00; | |
1202 | ||
1203 | hid_hw_raw_request(hdev, REPORT_ID_HIDPP_SHORT, buf, | |
1204 | HIDPP_REPORT_SHORT_LENGTH, HID_OUTPUT_REPORT, | |
1205 | HID_REQ_SET_REPORT); | |
1206 | ||
1207 | kfree(dj_report); | |
d8dc3494 | 1208 | return retval; |
534a7b8e NLC |
1209 | } |
1210 | ||
1211 | ||
1212 | static int logi_dj_ll_open(struct hid_device *hid) | |
1213 | { | |
aca22a35 | 1214 | dbg_hid("%s: %s\n", __func__, hid->phys); |
534a7b8e NLC |
1215 | return 0; |
1216 | ||
1217 | } | |
1218 | ||
1219 | static void logi_dj_ll_close(struct hid_device *hid) | |
1220 | { | |
aca22a35 | 1221 | dbg_hid("%s: %s\n", __func__, hid->phys); |
534a7b8e NLC |
1222 | } |
1223 | ||
8dba3026 BT |
1224 | /* |
1225 | * Register 0xB5 is "pairing information". It is solely intended for the | |
1226 | * receiver, so do not overwrite the device index. | |
1227 | */ | |
c0340412 BT |
1228 | static u8 unifying_pairing_query[] = { REPORT_ID_HIDPP_SHORT, |
1229 | HIDPP_RECEIVER_INDEX, | |
1230 | HIDPP_GET_LONG_REGISTER, | |
1231 | HIDPP_REG_PAIRING_INFORMATION }; | |
1232 | static u8 unifying_pairing_answer[] = { REPORT_ID_HIDPP_LONG, | |
1233 | HIDPP_RECEIVER_INDEX, | |
1234 | HIDPP_GET_LONG_REGISTER, | |
1235 | HIDPP_REG_PAIRING_INFORMATION }; | |
33797820 | 1236 | |
bd27e202 BT |
1237 | static int logi_dj_ll_raw_request(struct hid_device *hid, |
1238 | unsigned char reportnum, __u8 *buf, | |
1239 | size_t count, unsigned char report_type, | |
1240 | int reqtype) | |
534a7b8e | 1241 | { |
0e40d356 BT |
1242 | struct dj_device *djdev = hid->driver_data; |
1243 | struct dj_receiver_dev *djrcv_dev = djdev->dj_receiver_dev; | |
1244 | u8 *out_buf; | |
1245 | int ret; | |
534a7b8e | 1246 | |
925f0f3e | 1247 | if ((buf[0] == REPORT_ID_HIDPP_SHORT) || |
3a9a2c86 HG |
1248 | (buf[0] == REPORT_ID_HIDPP_LONG) || |
1249 | (buf[0] == REPORT_ID_HIDPP_VERY_LONG)) { | |
925f0f3e BT |
1250 | if (count < 2) |
1251 | return -EINVAL; | |
1252 | ||
33797820 BT |
1253 | /* special case where we should not overwrite |
1254 | * the device_index */ | |
8dba3026 BT |
1255 | if (count == 7 && !memcmp(buf, unifying_pairing_query, |
1256 | sizeof(unifying_pairing_query))) | |
1257 | buf[4] = (buf[4] & 0xf0) | (djdev->device_index - 1); | |
33797820 BT |
1258 | else |
1259 | buf[1] = djdev->device_index; | |
0ee75544 | 1260 | return hid_hw_raw_request(djrcv_dev->hidpp, reportnum, buf, |
925f0f3e BT |
1261 | count, report_type, reqtype); |
1262 | } | |
1263 | ||
0e40d356 BT |
1264 | if (buf[0] != REPORT_TYPE_LEDS) |
1265 | return -EINVAL; | |
1266 | ||
74808f91 HG |
1267 | if (djrcv_dev->type != recvr_type_dj && count >= 2) { |
1268 | if (!djrcv_dev->keyboard) { | |
1269 | hid_warn(hid, "Received REPORT_TYPE_LEDS request before the keyboard interface was enumerated\n"); | |
1270 | return 0; | |
1271 | } | |
1272 | /* usbhid overrides the report ID and ignores the first byte */ | |
1273 | return hid_hw_raw_request(djrcv_dev->keyboard, 0, buf, count, | |
1274 | report_type, reqtype); | |
1275 | } | |
1276 | ||
0e40d356 BT |
1277 | out_buf = kzalloc(DJREPORT_SHORT_LENGTH, GFP_ATOMIC); |
1278 | if (!out_buf) | |
1279 | return -ENOMEM; | |
1280 | ||
51217e69 | 1281 | if (count > DJREPORT_SHORT_LENGTH - 2) |
0e40d356 BT |
1282 | count = DJREPORT_SHORT_LENGTH - 2; |
1283 | ||
1284 | out_buf[0] = REPORT_ID_DJ_SHORT; | |
1285 | out_buf[1] = djdev->device_index; | |
1286 | memcpy(out_buf + 2, buf, count); | |
1287 | ||
0ee75544 | 1288 | ret = hid_hw_raw_request(djrcv_dev->hidpp, out_buf[0], out_buf, |
bd27e202 | 1289 | DJREPORT_SHORT_LENGTH, report_type, reqtype); |
0e40d356 BT |
1290 | |
1291 | kfree(out_buf); | |
1292 | return ret; | |
534a7b8e NLC |
1293 | } |
1294 | ||
6d603326 | 1295 | static void rdcat(char *rdesc, unsigned int *rsize, const char *data, unsigned int size) |
2a039bf5 | 1296 | { |
6d603326 | 1297 | memcpy(rdesc + *rsize, data, size); |
2a039bf5 HR |
1298 | *rsize += size; |
1299 | } | |
1300 | ||
534a7b8e NLC |
1301 | static int logi_dj_ll_parse(struct hid_device *hid) |
1302 | { | |
1303 | struct dj_device *djdev = hid->driver_data; | |
2a039bf5 HR |
1304 | unsigned int rsize = 0; |
1305 | char *rdesc; | |
534a7b8e NLC |
1306 | int retval; |
1307 | ||
1308 | dbg_hid("%s\n", __func__); | |
1309 | ||
1310 | djdev->hdev->version = 0x0111; | |
1311 | djdev->hdev->country = 0x00; | |
1312 | ||
2a039bf5 HR |
1313 | rdesc = kmalloc(MAX_RDESC_SIZE, GFP_KERNEL); |
1314 | if (!rdesc) | |
1315 | return -ENOMEM; | |
1316 | ||
534a7b8e | 1317 | if (djdev->reports_supported & STD_KEYBOARD) { |
6d3c3f03 | 1318 | dbg_hid("%s: sending a kbd descriptor, reports_supported: %llx\n", |
534a7b8e | 1319 | __func__, djdev->reports_supported); |
6d603326 | 1320 | rdcat(rdesc, &rsize, kbd_descriptor, sizeof(kbd_descriptor)); |
534a7b8e NLC |
1321 | } |
1322 | ||
1323 | if (djdev->reports_supported & STD_MOUSE) { | |
6d3c3f03 HG |
1324 | dbg_hid("%s: sending a mouse descriptor, reports_supported: %llx\n", |
1325 | __func__, djdev->reports_supported); | |
3ed224e2 HG |
1326 | if (djdev->dj_receiver_dev->type == recvr_type_gaming_hidpp || |
1327 | djdev->dj_receiver_dev->type == recvr_type_mouse_only) | |
f5fb57a7 BT |
1328 | rdcat(rdesc, &rsize, mse_high_res_descriptor, |
1329 | sizeof(mse_high_res_descriptor)); | |
c9121cf6 HG |
1330 | else if (djdev->dj_receiver_dev->type == recvr_type_27mhz) |
1331 | rdcat(rdesc, &rsize, mse_27mhz_descriptor, | |
1332 | sizeof(mse_27mhz_descriptor)); | |
f2113c30 HG |
1333 | else if (djdev->dj_receiver_dev->type == recvr_type_bluetooth) |
1334 | rdcat(rdesc, &rsize, mse_bluetooth_descriptor, | |
1335 | sizeof(mse_bluetooth_descriptor)); | |
f5fb57a7 BT |
1336 | else |
1337 | rdcat(rdesc, &rsize, mse_descriptor, | |
1338 | sizeof(mse_descriptor)); | |
534a7b8e NLC |
1339 | } |
1340 | ||
1341 | if (djdev->reports_supported & MULTIMEDIA) { | |
6d3c3f03 | 1342 | dbg_hid("%s: sending a multimedia report descriptor: %llx\n", |
534a7b8e | 1343 | __func__, djdev->reports_supported); |
6d603326 | 1344 | rdcat(rdesc, &rsize, consumer_descriptor, sizeof(consumer_descriptor)); |
534a7b8e NLC |
1345 | } |
1346 | ||
1347 | if (djdev->reports_supported & POWER_KEYS) { | |
6d3c3f03 | 1348 | dbg_hid("%s: sending a power keys report descriptor: %llx\n", |
534a7b8e | 1349 | __func__, djdev->reports_supported); |
6d603326 | 1350 | rdcat(rdesc, &rsize, syscontrol_descriptor, sizeof(syscontrol_descriptor)); |
534a7b8e NLC |
1351 | } |
1352 | ||
1353 | if (djdev->reports_supported & MEDIA_CENTER) { | |
6d3c3f03 | 1354 | dbg_hid("%s: sending a media center report descriptor: %llx\n", |
534a7b8e | 1355 | __func__, djdev->reports_supported); |
6d603326 | 1356 | rdcat(rdesc, &rsize, media_descriptor, sizeof(media_descriptor)); |
534a7b8e NLC |
1357 | } |
1358 | ||
1359 | if (djdev->reports_supported & KBD_LEDS) { | |
6d3c3f03 | 1360 | dbg_hid("%s: need to send kbd leds report descriptor: %llx\n", |
534a7b8e NLC |
1361 | __func__, djdev->reports_supported); |
1362 | } | |
1363 | ||
6d3c3f03 HG |
1364 | if (djdev->reports_supported & HIDPP) { |
1365 | rdcat(rdesc, &rsize, hidpp_descriptor, | |
1366 | sizeof(hidpp_descriptor)); | |
1367 | } | |
925f0f3e | 1368 | |
2a039bf5 HR |
1369 | retval = hid_parse_report(hid, rdesc, rsize); |
1370 | kfree(rdesc); | |
1371 | ||
1372 | return retval; | |
534a7b8e NLC |
1373 | } |
1374 | ||
534a7b8e NLC |
1375 | static int logi_dj_ll_start(struct hid_device *hid) |
1376 | { | |
1377 | dbg_hid("%s\n", __func__); | |
1378 | return 0; | |
1379 | } | |
1380 | ||
1381 | static void logi_dj_ll_stop(struct hid_device *hid) | |
1382 | { | |
1383 | dbg_hid("%s\n", __func__); | |
1384 | } | |
1385 | ||
1386 | ||
1387 | static struct hid_ll_driver logi_dj_ll_driver = { | |
1388 | .parse = logi_dj_ll_parse, | |
1389 | .start = logi_dj_ll_start, | |
1390 | .stop = logi_dj_ll_stop, | |
1391 | .open = logi_dj_ll_open, | |
1392 | .close = logi_dj_ll_close, | |
bd27e202 | 1393 | .raw_request = logi_dj_ll_raw_request, |
534a7b8e NLC |
1394 | }; |
1395 | ||
925f0f3e | 1396 | static int logi_dj_dj_event(struct hid_device *hdev, |
534a7b8e NLC |
1397 | struct hid_report *report, u8 *data, |
1398 | int size) | |
1399 | { | |
1400 | struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev); | |
1401 | struct dj_report *dj_report = (struct dj_report *) data; | |
1402 | unsigned long flags; | |
534a7b8e | 1403 | |
925f0f3e BT |
1404 | /* |
1405 | * Here we receive all data coming from iface 2, there are 3 cases: | |
534a7b8e | 1406 | * |
925f0f3e BT |
1407 | * 1) Data is intended for this driver i. e. data contains arrival, |
1408 | * departure, etc notifications, in which case we queue them for delayed | |
1409 | * processing by the work queue. We return 1 to hid-core as no further | |
1410 | * processing is required from it. | |
534a7b8e | 1411 | * |
925f0f3e BT |
1412 | * 2) Data informs a connection change, if the change means rf link |
1413 | * loss, then we must send a null report to the upper layer to discard | |
1414 | * potentially pressed keys that may be repeated forever by the input | |
1415 | * layer. Return 1 to hid-core as no further processing is required. | |
534a7b8e | 1416 | * |
925f0f3e BT |
1417 | * 3) Data is an actual input event from a paired DJ device in which |
1418 | * case we forward it to the correct hid device (via hid_input_report() | |
1419 | * ) and return 1 so hid-core does not anything else with it. | |
534a7b8e | 1420 | */ |
5abfe85c | 1421 | |
ad3e14d7 JK |
1422 | if ((dj_report->device_index < DJ_DEVICE_INDEX_MIN) || |
1423 | (dj_report->device_index > DJ_DEVICE_INDEX_MAX)) { | |
5abfe85c BT |
1424 | /* |
1425 | * Device index is wrong, bail out. | |
1426 | * This driver can ignore safely the receiver notifications, | |
1427 | * so ignore those reports too. | |
1428 | */ | |
1429 | if (dj_report->device_index != DJ_RECEIVER_INDEX) | |
aca22a35 | 1430 | hid_err(hdev, "%s: invalid device index:%d\n", |
ad3e14d7 JK |
1431 | __func__, dj_report->device_index); |
1432 | return false; | |
1433 | } | |
534a7b8e NLC |
1434 | |
1435 | spin_lock_irqsave(&djrcv_dev->lock, flags); | |
368d4e59 BT |
1436 | |
1437 | if (!djrcv_dev->paired_dj_devices[dj_report->device_index]) { | |
1438 | /* received an event for an unknown device, bail out */ | |
1439 | logi_dj_recv_queue_notification(djrcv_dev, dj_report); | |
1440 | goto out; | |
1441 | } | |
1442 | ||
5abfe85c BT |
1443 | switch (dj_report->report_type) { |
1444 | case REPORT_TYPE_NOTIF_DEVICE_PAIRED: | |
368d4e59 BT |
1445 | /* pairing notifications are handled above the switch */ |
1446 | break; | |
5abfe85c BT |
1447 | case REPORT_TYPE_NOTIF_DEVICE_UNPAIRED: |
1448 | logi_dj_recv_queue_notification(djrcv_dev, dj_report); | |
1449 | break; | |
1450 | case REPORT_TYPE_NOTIF_CONNECTION_STATUS: | |
1451 | if (dj_report->report_params[CONNECTION_STATUS_PARAM_STATUS] == | |
1452 | STATUS_LINKLOSS) { | |
1453 | logi_dj_recv_forward_null_report(djrcv_dev, dj_report); | |
534a7b8e | 1454 | } |
5abfe85c BT |
1455 | break; |
1456 | default: | |
83898234 | 1457 | logi_dj_recv_forward_dj(djrcv_dev, dj_report); |
534a7b8e | 1458 | } |
368d4e59 BT |
1459 | |
1460 | out: | |
534a7b8e NLC |
1461 | spin_unlock_irqrestore(&djrcv_dev->lock, flags); |
1462 | ||
5abfe85c | 1463 | return true; |
534a7b8e NLC |
1464 | } |
1465 | ||
925f0f3e BT |
1466 | static int logi_dj_hidpp_event(struct hid_device *hdev, |
1467 | struct hid_report *report, u8 *data, | |
1468 | int size) | |
1469 | { | |
1470 | struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev); | |
7bb56a5f | 1471 | struct hidpp_event *hidpp_report = (struct hidpp_event *) data; |
74808f91 | 1472 | struct dj_device *dj_dev; |
925f0f3e | 1473 | unsigned long flags; |
7bb56a5f | 1474 | u8 device_index = hidpp_report->device_index; |
925f0f3e | 1475 | |
33797820 BT |
1476 | if (device_index == HIDPP_RECEIVER_INDEX) { |
1477 | /* special case were the device wants to know its unifying | |
1478 | * name */ | |
1479 | if (size == HIDPP_REPORT_LONG_LENGTH && | |
8dba3026 BT |
1480 | !memcmp(data, unifying_pairing_answer, |
1481 | sizeof(unifying_pairing_answer))) | |
33797820 BT |
1482 | device_index = (data[4] & 0x0F) + 1; |
1483 | else | |
1484 | return false; | |
1485 | } | |
925f0f3e BT |
1486 | |
1487 | /* | |
1488 | * Data is from the HID++ collection, in this case, we forward the | |
1489 | * data to the corresponding child dj device and return 0 to hid-core | |
1490 | * so he data also goes to the hidraw device of the receiver. This | |
1491 | * allows a user space application to implement the full HID++ routing | |
1492 | * via the receiver. | |
1493 | */ | |
1494 | ||
1495 | if ((device_index < DJ_DEVICE_INDEX_MIN) || | |
1496 | (device_index > DJ_DEVICE_INDEX_MAX)) { | |
1497 | /* | |
1498 | * Device index is wrong, bail out. | |
1499 | * This driver can ignore safely the receiver notifications, | |
1500 | * so ignore those reports too. | |
1501 | */ | |
aca22a35 HG |
1502 | hid_err(hdev, "%s: invalid device index:%d\n", __func__, |
1503 | hidpp_report->device_index); | |
925f0f3e BT |
1504 | return false; |
1505 | } | |
1506 | ||
1507 | spin_lock_irqsave(&djrcv_dev->lock, flags); | |
1508 | ||
74808f91 | 1509 | dj_dev = djrcv_dev->paired_dj_devices[device_index]; |
c9121cf6 HG |
1510 | |
1511 | /* | |
1512 | * With 27 MHz receivers, we do not get an explicit unpair event, | |
1513 | * remove the old device if the user has paired a *different* device. | |
1514 | */ | |
1515 | if (djrcv_dev->type == recvr_type_27mhz && dj_dev && | |
1516 | hidpp_report->sub_id == REPORT_TYPE_NOTIF_DEVICE_CONNECTED && | |
1517 | hidpp_report->params[HIDPP_PARAM_PROTO_TYPE] == 0x02 && | |
1518 | hidpp_report->params[HIDPP_PARAM_27MHZ_DEVID] != | |
1519 | dj_dev->hdev->product) { | |
1520 | struct dj_workitem workitem = { | |
1521 | .device_index = hidpp_report->device_index, | |
1522 | .type = WORKITEM_TYPE_UNPAIRED, | |
1523 | }; | |
1524 | kfifo_in(&djrcv_dev->notif_fifo, &workitem, sizeof(workitem)); | |
1525 | /* logi_hidpp_recv_queue_notif will queue the work */ | |
1526 | dj_dev = NULL; | |
1527 | } | |
1528 | ||
74808f91 HG |
1529 | if (dj_dev) { |
1530 | logi_dj_recv_forward_report(dj_dev, data, size); | |
1531 | } else { | |
1532 | if (hidpp_report->sub_id == REPORT_TYPE_NOTIF_DEVICE_CONNECTED) | |
1533 | logi_hidpp_recv_queue_notif(hdev, hidpp_report); | |
1534 | else | |
1535 | logi_dj_recv_queue_unknown_work(djrcv_dev); | |
1536 | } | |
925f0f3e | 1537 | |
925f0f3e BT |
1538 | spin_unlock_irqrestore(&djrcv_dev->lock, flags); |
1539 | ||
1540 | return false; | |
1541 | } | |
1542 | ||
1543 | static int logi_dj_raw_event(struct hid_device *hdev, | |
1544 | struct hid_report *report, u8 *data, | |
1545 | int size) | |
1546 | { | |
74808f91 | 1547 | struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev); |
925f0f3e BT |
1548 | dbg_hid("%s, size:%d\n", __func__, size); |
1549 | ||
da12b224 HG |
1550 | if (!djrcv_dev) |
1551 | return 0; | |
1552 | ||
74808f91 HG |
1553 | if (!hdev->report_enum[HID_INPUT_REPORT].numbered) { |
1554 | ||
1555 | if (djrcv_dev->unnumbered_application == HID_GD_KEYBOARD) { | |
1556 | /* | |
1557 | * For the keyboard, we can reuse the same report by | |
1558 | * using the second byte which is constant in the USB | |
1559 | * HID report descriptor. | |
1560 | */ | |
1561 | data[1] = data[0]; | |
1562 | data[0] = REPORT_TYPE_KEYBOARD; | |
1563 | ||
1564 | logi_dj_recv_forward_input_report(hdev, data, size); | |
1565 | ||
1566 | /* restore previous state */ | |
1567 | data[0] = data[1]; | |
1568 | data[1] = 0; | |
1569 | } | |
3ed224e2 HG |
1570 | /* |
1571 | * Mouse-only receivers send unnumbered mouse data. The 27 MHz | |
1572 | * receiver uses 6 byte packets, the nano receiver 8 bytes. | |
1573 | */ | |
1f944ac6 | 1574 | if (djrcv_dev->unnumbered_application == HID_GD_MOUSE && |
3ed224e2 HG |
1575 | size <= 8) { |
1576 | u8 mouse_report[9]; | |
1f944ac6 HG |
1577 | |
1578 | /* Prepend report id */ | |
1579 | mouse_report[0] = REPORT_TYPE_MOUSE; | |
3ed224e2 HG |
1580 | memcpy(mouse_report + 1, data, size); |
1581 | logi_dj_recv_forward_input_report(hdev, mouse_report, | |
1582 | size + 1); | |
1f944ac6 | 1583 | } |
74808f91 HG |
1584 | |
1585 | return false; | |
1586 | } | |
1587 | ||
925f0f3e BT |
1588 | switch (data[0]) { |
1589 | case REPORT_ID_DJ_SHORT: | |
f254ae93 | 1590 | if (size != DJREPORT_SHORT_LENGTH) { |
aca22a35 | 1591 | hid_err(hdev, "Short DJ report bad size (%d)", size); |
f254ae93 PW |
1592 | return false; |
1593 | } | |
925f0f3e | 1594 | return logi_dj_dj_event(hdev, report, data, size); |
f5fb57a7 BT |
1595 | case REPORT_ID_DJ_LONG: |
1596 | if (size != DJREPORT_LONG_LENGTH) { | |
aca22a35 | 1597 | hid_err(hdev, "Long DJ report bad size (%d)", size); |
f5fb57a7 BT |
1598 | return false; |
1599 | } | |
1600 | return logi_dj_dj_event(hdev, report, data, size); | |
925f0f3e | 1601 | case REPORT_ID_HIDPP_SHORT: |
f254ae93 | 1602 | if (size != HIDPP_REPORT_SHORT_LENGTH) { |
aca22a35 | 1603 | hid_err(hdev, "Short HID++ report bad size (%d)", size); |
f254ae93 PW |
1604 | return false; |
1605 | } | |
1606 | return logi_dj_hidpp_event(hdev, report, data, size); | |
925f0f3e | 1607 | case REPORT_ID_HIDPP_LONG: |
f254ae93 | 1608 | if (size != HIDPP_REPORT_LONG_LENGTH) { |
aca22a35 | 1609 | hid_err(hdev, "Long HID++ report bad size (%d)", size); |
f254ae93 PW |
1610 | return false; |
1611 | } | |
925f0f3e BT |
1612 | return logi_dj_hidpp_event(hdev, report, data, size); |
1613 | } | |
1614 | ||
74808f91 HG |
1615 | logi_dj_recv_forward_input_report(hdev, data, size); |
1616 | ||
925f0f3e BT |
1617 | return false; |
1618 | } | |
1619 | ||
534a7b8e NLC |
1620 | static int logi_dj_probe(struct hid_device *hdev, |
1621 | const struct hid_device_id *id) | |
1622 | { | |
82c0beb8 BT |
1623 | struct hid_report_enum *rep_enum; |
1624 | struct hid_report *rep; | |
534a7b8e | 1625 | struct dj_receiver_dev *djrcv_dev; |
da12b224 HG |
1626 | struct usb_interface *intf; |
1627 | unsigned int no_dj_interfaces = 0; | |
82c0beb8 | 1628 | bool has_hidpp = false; |
a1d97ccb | 1629 | unsigned long flags; |
534a7b8e NLC |
1630 | int retval; |
1631 | ||
82c0beb8 BT |
1632 | /* |
1633 | * Call to usbhid to fetch the HID descriptors of the current | |
1634 | * interface subsequently call to the hid/hid-core to parse the | |
1635 | * fetched descriptors. | |
1636 | */ | |
1637 | retval = hid_parse(hdev); | |
1638 | if (retval) { | |
aca22a35 | 1639 | hid_err(hdev, "%s: parse failed\n", __func__); |
82c0beb8 BT |
1640 | return retval; |
1641 | } | |
534a7b8e | 1642 | |
da12b224 HG |
1643 | /* |
1644 | * Some KVMs add an extra interface for e.g. mouse emulation. If we | |
1645 | * treat these as logitech-dj interfaces then this causes input events | |
1646 | * reported through this extra interface to not be reported correctly. | |
1647 | * To avoid this, we treat these as generic-hid devices. | |
1648 | */ | |
1649 | switch (id->driver_data) { | |
1650 | case recvr_type_dj: no_dj_interfaces = 3; break; | |
1651 | case recvr_type_hidpp: no_dj_interfaces = 2; break; | |
1652 | case recvr_type_gaming_hidpp: no_dj_interfaces = 3; break; | |
3ed224e2 | 1653 | case recvr_type_mouse_only: no_dj_interfaces = 2; break; |
da12b224 | 1654 | case recvr_type_27mhz: no_dj_interfaces = 2; break; |
f2113c30 | 1655 | case recvr_type_bluetooth: no_dj_interfaces = 2; break; |
da12b224 HG |
1656 | } |
1657 | if (hid_is_using_ll_driver(hdev, &usb_hid_driver)) { | |
1658 | intf = to_usb_interface(hdev->dev.parent); | |
1659 | if (intf && intf->altsetting->desc.bInterfaceNumber >= | |
1660 | no_dj_interfaces) { | |
1661 | hdev->quirks |= HID_QUIRK_INPUT_PER_APP; | |
1662 | return hid_hw_start(hdev, HID_CONNECT_DEFAULT); | |
1663 | } | |
1664 | } | |
1665 | ||
82c0beb8 BT |
1666 | rep_enum = &hdev->report_enum[HID_INPUT_REPORT]; |
1667 | ||
74808f91 HG |
1668 | /* no input reports, bail out */ |
1669 | if (list_empty(&rep_enum->report_list)) | |
1670 | return -ENODEV; | |
1671 | ||
82c0beb8 BT |
1672 | /* |
1673 | * Check for the HID++ application. | |
1674 | * Note: we should theoretically check for HID++ and DJ | |
1675 | * collections, but this will do. | |
1676 | */ | |
1677 | list_for_each_entry(rep, &rep_enum->report_list, list) { | |
1678 | if (rep->application == 0xff000001) | |
1679 | has_hidpp = true; | |
534a7b8e NLC |
1680 | } |
1681 | ||
82c0beb8 BT |
1682 | /* |
1683 | * Ignore interfaces without DJ/HID++ collection, they will not carry | |
1684 | * any data, dont create any hid_device for them. | |
1685 | */ | |
74808f91 | 1686 | if (!has_hidpp && id->driver_data == recvr_type_dj) |
82c0beb8 BT |
1687 | return -ENODEV; |
1688 | ||
a1d97ccb HG |
1689 | /* get the current application attached to the node */ |
1690 | rep = list_first_entry(&rep_enum->report_list, struct hid_report, list); | |
74808f91 | 1691 | djrcv_dev = dj_get_receiver_dev(hdev, id->driver_data, |
a1d97ccb | 1692 | rep->application, has_hidpp); |
534a7b8e | 1693 | if (!djrcv_dev) { |
aca22a35 | 1694 | hid_err(hdev, "%s: dj_get_receiver_dev failed\n", __func__); |
534a7b8e NLC |
1695 | return -ENOMEM; |
1696 | } | |
297502ab | 1697 | |
74808f91 HG |
1698 | if (!rep_enum->numbered) |
1699 | djrcv_dev->unnumbered_application = rep->application; | |
1700 | ||
534a7b8e NLC |
1701 | /* Starts the usb device and connects to upper interfaces hiddev and |
1702 | * hidraw */ | |
74808f91 | 1703 | retval = hid_hw_start(hdev, HID_CONNECT_HIDRAW|HID_CONNECT_HIDDEV); |
534a7b8e | 1704 | if (retval) { |
aca22a35 | 1705 | hid_err(hdev, "%s: hid_hw_start returned error\n", __func__); |
534a7b8e NLC |
1706 | goto hid_hw_start_fail; |
1707 | } | |
1708 | ||
74808f91 HG |
1709 | if (has_hidpp) { |
1710 | retval = logi_dj_recv_switch_to_dj_mode(djrcv_dev, 0); | |
1711 | if (retval < 0) { | |
1712 | hid_err(hdev, "%s: logi_dj_recv_switch_to_dj_mode returned error:%d\n", | |
1713 | __func__, retval); | |
1714 | goto switch_to_dj_mode_fail; | |
1715 | } | |
534a7b8e NLC |
1716 | } |
1717 | ||
1718 | /* This is enabling the polling urb on the IN endpoint */ | |
ddf7540e | 1719 | retval = hid_hw_open(hdev); |
534a7b8e | 1720 | if (retval < 0) { |
aca22a35 | 1721 | hid_err(hdev, "%s: hid_hw_open returned error:%d\n", |
ddf7540e | 1722 | __func__, retval); |
534a7b8e NLC |
1723 | goto llopen_failed; |
1724 | } | |
1725 | ||
a9dd22b7 AR |
1726 | /* Allow incoming packets to arrive: */ |
1727 | hid_device_io_start(hdev); | |
1728 | ||
74808f91 HG |
1729 | if (has_hidpp) { |
1730 | spin_lock_irqsave(&djrcv_dev->lock, flags); | |
1731 | djrcv_dev->ready = true; | |
1732 | spin_unlock_irqrestore(&djrcv_dev->lock, flags); | |
1733 | retval = logi_dj_recv_query_paired_devices(djrcv_dev); | |
1734 | if (retval < 0) { | |
1735 | hid_err(hdev, "%s: logi_dj_recv_query_paired_devices error:%d\n", | |
1736 | __func__, retval); | |
6aaa4547 HG |
1737 | /* |
1738 | * This can happen with a KVM, let the probe succeed, | |
1739 | * logi_dj_recv_queue_unknown_work will retry later. | |
1740 | */ | |
74808f91 | 1741 | } |
534a7b8e NLC |
1742 | } |
1743 | ||
6aaa4547 | 1744 | return 0; |
534a7b8e NLC |
1745 | |
1746 | llopen_failed: | |
1747 | switch_to_dj_mode_fail: | |
1748 | hid_hw_stop(hdev); | |
1749 | ||
1750 | hid_hw_start_fail: | |
a1d97ccb | 1751 | dj_put_receiver_dev(hdev); |
534a7b8e | 1752 | return retval; |
534a7b8e NLC |
1753 | } |
1754 | ||
1755 | #ifdef CONFIG_PM | |
1756 | static int logi_dj_reset_resume(struct hid_device *hdev) | |
1757 | { | |
1758 | int retval; | |
1759 | struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev); | |
1760 | ||
da12b224 | 1761 | if (!djrcv_dev || djrcv_dev->hidpp != hdev) |
74808f91 HG |
1762 | return 0; |
1763 | ||
534a7b8e NLC |
1764 | retval = logi_dj_recv_switch_to_dj_mode(djrcv_dev, 0); |
1765 | if (retval < 0) { | |
aca22a35 | 1766 | hid_err(hdev, "%s: logi_dj_recv_switch_to_dj_mode returned error:%d\n", |
534a7b8e NLC |
1767 | __func__, retval); |
1768 | } | |
1769 | ||
1770 | return 0; | |
1771 | } | |
1772 | #endif | |
1773 | ||
1774 | static void logi_dj_remove(struct hid_device *hdev) | |
1775 | { | |
1776 | struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev); | |
1777 | struct dj_device *dj_dev; | |
a1d97ccb | 1778 | unsigned long flags; |
534a7b8e NLC |
1779 | int i; |
1780 | ||
1781 | dbg_hid("%s\n", __func__); | |
1782 | ||
da12b224 HG |
1783 | if (!djrcv_dev) |
1784 | return hid_hw_stop(hdev); | |
1785 | ||
a1d97ccb HG |
1786 | /* |
1787 | * This ensures that if the work gets requeued from another | |
1788 | * interface of the same receiver it will be a no-op. | |
1789 | */ | |
1790 | spin_lock_irqsave(&djrcv_dev->lock, flags); | |
1791 | djrcv_dev->ready = false; | |
1792 | spin_unlock_irqrestore(&djrcv_dev->lock, flags); | |
1793 | ||
534a7b8e NLC |
1794 | cancel_work_sync(&djrcv_dev->work); |
1795 | ||
ddf7540e | 1796 | hid_hw_close(hdev); |
534a7b8e NLC |
1797 | hid_hw_stop(hdev); |
1798 | ||
a1d97ccb HG |
1799 | /* |
1800 | * For proper operation we need access to all interfaces, so we destroy | |
1801 | * the paired devices when we're unbound from any interface. | |
1802 | * | |
1803 | * Note we may still be bound to other interfaces, sharing the same | |
1804 | * djrcv_dev, so we need locking here. | |
1805 | */ | |
844580ff | 1806 | for (i = 0; i < (DJ_MAX_PAIRED_DEVICES + DJ_DEVICE_INDEX_MIN); i++) { |
a1d97ccb | 1807 | spin_lock_irqsave(&djrcv_dev->lock, flags); |
534a7b8e | 1808 | dj_dev = djrcv_dev->paired_dj_devices[i]; |
a1d97ccb HG |
1809 | djrcv_dev->paired_dj_devices[i] = NULL; |
1810 | spin_unlock_irqrestore(&djrcv_dev->lock, flags); | |
534a7b8e NLC |
1811 | if (dj_dev != NULL) { |
1812 | hid_destroy_device(dj_dev->hdev); | |
1813 | kfree(dj_dev); | |
534a7b8e NLC |
1814 | } |
1815 | } | |
1816 | ||
a1d97ccb | 1817 | dj_put_receiver_dev(hdev); |
534a7b8e NLC |
1818 | } |
1819 | ||
534a7b8e NLC |
1820 | static const struct hid_device_id logi_dj_receivers[] = { |
1821 | {HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, | |
74808f91 HG |
1822 | USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER), |
1823 | .driver_data = recvr_type_dj}, | |
534a7b8e | 1824 | {HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, |
74808f91 HG |
1825 | USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER_2), |
1826 | .driver_data = recvr_type_dj}, | |
3ed224e2 | 1827 | { /* Logitech Nano mouse only receiver */ |
74808f91 HG |
1828 | HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, |
1829 | USB_DEVICE_ID_LOGITECH_NANO_RECEIVER), | |
3ed224e2 | 1830 | .driver_data = recvr_type_mouse_only}, |
74808f91 HG |
1831 | { /* Logitech Nano (non DJ) receiver */ |
1832 | HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, | |
1833 | USB_DEVICE_ID_LOGITECH_NANO_RECEIVER_2), | |
1834 | .driver_data = recvr_type_hidpp}, | |
600ea54d | 1835 | { /* Logitech lightspeed receiver (0xc539) */ |
f5fb57a7 | 1836 | HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, |
600ea54d | 1837 | USB_DEVICE_ID_LOGITECH_NANO_RECEIVER_LIGHTSPEED), |
f5fb57a7 | 1838 | .driver_data = recvr_type_gaming_hidpp}, |
423dfbc3 HG |
1839 | { /* Logitech 27 MHz HID++ 1.0 receiver (0xc513) */ |
1840 | HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_MX3000_RECEIVER), | |
1841 | .driver_data = recvr_type_27mhz}, | |
d79f7bad FL |
1842 | { /* Logitech powerplay receiver (0xc53a) */ |
1843 | HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, | |
1844 | USB_DEVICE_ID_LOGITECH_NANO_RECEIVER_POWERPLAY), | |
1845 | .driver_data = recvr_type_gaming_hidpp}, | |
c9121cf6 HG |
1846 | { /* Logitech 27 MHz HID++ 1.0 receiver (0xc517) */ |
1847 | HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, | |
1848 | USB_DEVICE_ID_S510_RECEIVER_2), | |
1849 | .driver_data = recvr_type_27mhz}, | |
1f944ac6 HG |
1850 | { /* Logitech 27 MHz HID++ 1.0 mouse-only receiver (0xc51b) */ |
1851 | HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, | |
1852 | USB_DEVICE_ID_LOGITECH_27MHZ_MOUSE_RECEIVER), | |
1853 | .driver_data = recvr_type_27mhz}, | |
f2113c30 HG |
1854 | { /* Logitech MX5000 HID++ / bluetooth receiver keyboard intf. */ |
1855 | HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, | |
1856 | 0xc70e), | |
1857 | .driver_data = recvr_type_bluetooth}, | |
1858 | { /* Logitech MX5000 HID++ / bluetooth receiver mouse intf. */ | |
1859 | HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, | |
1860 | 0xc70a), | |
1861 | .driver_data = recvr_type_bluetooth}, | |
b9a94fbe HG |
1862 | { /* Logitech MX5500 HID++ / bluetooth receiver keyboard intf. */ |
1863 | HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, | |
1864 | 0xc71b), | |
1865 | .driver_data = recvr_type_bluetooth}, | |
1866 | { /* Logitech MX5500 HID++ / bluetooth receiver mouse intf. */ | |
1867 | HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, | |
1868 | 0xc71c), | |
1869 | .driver_data = recvr_type_bluetooth}, | |
534a7b8e NLC |
1870 | {} |
1871 | }; | |
1872 | ||
1873 | MODULE_DEVICE_TABLE(hid, logi_dj_receivers); | |
1874 | ||
1875 | static struct hid_driver logi_djreceiver_driver = { | |
1876 | .name = "logitech-djreceiver", | |
1877 | .id_table = logi_dj_receivers, | |
1878 | .probe = logi_dj_probe, | |
1879 | .remove = logi_dj_remove, | |
1880 | .raw_event = logi_dj_raw_event, | |
1881 | #ifdef CONFIG_PM | |
1882 | .reset_resume = logi_dj_reset_resume, | |
1883 | #endif | |
1884 | }; | |
1885 | ||
ab94e562 | 1886 | module_hid_driver(logi_djreceiver_driver); |
534a7b8e | 1887 | |
534a7b8e NLC |
1888 | MODULE_LICENSE("GPL"); |
1889 | MODULE_AUTHOR("Logitech"); | |
1890 | MODULE_AUTHOR("Nestor Lopez Casado"); | |
1891 | MODULE_AUTHOR("nlopezcasad@logitech.com"); |