xref: /openbmc/linux/drivers/hid/hid-sony.c (revision 56cb61f7)
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  *  HID driver for Sony / PS2 / PS3 / PS4 BD devices.
4  *
5  *  Copyright (c) 1999 Andreas Gal
6  *  Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
7  *  Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
8  *  Copyright (c) 2008 Jiri Slaby
9  *  Copyright (c) 2012 David Dillow <dave@thedillows.org>
10  *  Copyright (c) 2006-2013 Jiri Kosina
11  *  Copyright (c) 2013 Colin Leitner <colin.leitner@gmail.com>
12  *  Copyright (c) 2014-2016 Frank Praznik <frank.praznik@gmail.com>
13  *  Copyright (c) 2018 Todd Kelner
14  *  Copyright (c) 2020-2021 Pascal Giard <pascal.giard@etsmtl.ca>
15  *  Copyright (c) 2020 Sanjay Govind <sanjay.govind9@gmail.com>
16  *  Copyright (c) 2021 Daniel Nguyen <daniel.nguyen.1@ens.etsmtl.ca>
17  */
18 
19 /*
20  */
21 
22 /*
23  * NOTE: in order for the Sony PS3 BD Remote Control to be found by
24  * a Bluetooth host, the key combination Start+Enter has to be kept pressed
25  * for about 7 seconds with the Bluetooth Host Controller in discovering mode.
26  *
27  * There will be no PIN request from the device.
28  */
29 
30 #include <linux/device.h>
31 #include <linux/hid.h>
32 #include <linux/module.h>
33 #include <linux/slab.h>
34 #include <linux/leds.h>
35 #include <linux/power_supply.h>
36 #include <linux/spinlock.h>
37 #include <linux/list.h>
38 #include <linux/idr.h>
39 #include <linux/input/mt.h>
40 #include <linux/crc32.h>
41 #include <linux/usb.h>
42 #include <linux/timer.h>
43 #include <asm/unaligned.h>
44 
45 #include "hid-ids.h"
46 
47 #define VAIO_RDESC_CONSTANT       BIT(0)
48 #define SIXAXIS_CONTROLLER_USB    BIT(1)
49 #define SIXAXIS_CONTROLLER_BT     BIT(2)
50 #define BUZZ_CONTROLLER           BIT(3)
51 #define PS3REMOTE                 BIT(4)
52 #define DUALSHOCK4_CONTROLLER_USB BIT(5)
53 #define DUALSHOCK4_CONTROLLER_BT  BIT(6)
54 #define DUALSHOCK4_DONGLE         BIT(7)
55 #define MOTION_CONTROLLER_USB     BIT(8)
56 #define MOTION_CONTROLLER_BT      BIT(9)
57 #define NAVIGATION_CONTROLLER_USB BIT(10)
58 #define NAVIGATION_CONTROLLER_BT  BIT(11)
59 #define SINO_LITE_CONTROLLER      BIT(12)
60 #define FUTUREMAX_DANCE_MAT       BIT(13)
61 #define NSG_MR5U_REMOTE_BT        BIT(14)
62 #define NSG_MR7U_REMOTE_BT        BIT(15)
63 #define SHANWAN_GAMEPAD           BIT(16)
64 #define GH_GUITAR_CONTROLLER      BIT(17)
65 #define GHL_GUITAR_PS3WIIU        BIT(18)
66 #define GHL_GUITAR_PS4            BIT(19)
67 
68 #define SIXAXIS_CONTROLLER (SIXAXIS_CONTROLLER_USB | SIXAXIS_CONTROLLER_BT)
69 #define MOTION_CONTROLLER (MOTION_CONTROLLER_USB | MOTION_CONTROLLER_BT)
70 #define NAVIGATION_CONTROLLER (NAVIGATION_CONTROLLER_USB |\
71 				NAVIGATION_CONTROLLER_BT)
72 #define DUALSHOCK4_CONTROLLER (DUALSHOCK4_CONTROLLER_USB |\
73 				DUALSHOCK4_CONTROLLER_BT | \
74 				DUALSHOCK4_DONGLE)
75 #define SONY_LED_SUPPORT (SIXAXIS_CONTROLLER | BUZZ_CONTROLLER |\
76 				DUALSHOCK4_CONTROLLER | MOTION_CONTROLLER |\
77 				NAVIGATION_CONTROLLER)
78 #define SONY_BATTERY_SUPPORT (SIXAXIS_CONTROLLER | DUALSHOCK4_CONTROLLER |\
79 				MOTION_CONTROLLER_BT | NAVIGATION_CONTROLLER)
80 #define SONY_FF_SUPPORT (SIXAXIS_CONTROLLER | DUALSHOCK4_CONTROLLER |\
81 				MOTION_CONTROLLER)
82 #define SONY_BT_DEVICE (SIXAXIS_CONTROLLER_BT | DUALSHOCK4_CONTROLLER_BT |\
83 			MOTION_CONTROLLER_BT | NAVIGATION_CONTROLLER_BT)
84 #define NSG_MRXU_REMOTE (NSG_MR5U_REMOTE_BT | NSG_MR7U_REMOTE_BT)
85 
86 #define MAX_LEDS 4
87 #define NSG_MRXU_MAX_X 1667
88 #define NSG_MRXU_MAX_Y 1868
89 
90 /* The PS3/Wii U dongles require a poke every 10 seconds, but the PS4
91  * requires one every 8 seconds. Using 8 seconds for all for simplicity.
92  */
93 #define GHL_GUITAR_POKE_INTERVAL 8 /* In seconds */
94 #define GUITAR_TILT_USAGE 44
95 
96 /* Magic data taken from GHLtarUtility:
97  * https://github.com/ghlre/GHLtarUtility/blob/master/PS3Guitar.cs
98  * Note: The Wii U and PS3 dongles happen to share the same!
99  */
100 static const char ghl_ps3wiiu_magic_data[] = {
101 	0x02, 0x08, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00
102 };
103 
104 /* Magic data for the PS4 dongles sniffed with a USB protocol
105  * analyzer.
106  */
107 static const char ghl_ps4_magic_data[] = {
108 	0x30, 0x02, 0x08, 0x0A, 0x00, 0x00, 0x00, 0x00, 0x00
109 };
110 
111 /* PS/3 Motion controller */
112 static u8 motion_rdesc[] = {
113 	0x05, 0x01,         /*  Usage Page (Desktop),               */
114 	0x09, 0x04,         /*  Usage (Joystick),                   */
115 	0xA1, 0x01,         /*  Collection (Application),           */
116 	0xA1, 0x02,         /*      Collection (Logical),           */
117 	0x85, 0x01,         /*          Report ID (1),              */
118 	0x75, 0x01,         /*          Report Size (1),            */
119 	0x95, 0x15,         /*          Report Count (21),          */
120 	0x15, 0x00,         /*          Logical Minimum (0),        */
121 	0x25, 0x01,         /*          Logical Maximum (1),        */
122 	0x35, 0x00,         /*          Physical Minimum (0),       */
123 	0x45, 0x01,         /*          Physical Maximum (1),       */
124 	0x05, 0x09,         /*          Usage Page (Button),        */
125 	0x19, 0x01,         /*          Usage Minimum (01h),        */
126 	0x29, 0x15,         /*          Usage Maximum (15h),        */
127 	0x81, 0x02,         /*          Input (Variable),           * Buttons */
128 	0x95, 0x0B,         /*          Report Count (11),          */
129 	0x06, 0x00, 0xFF,   /*          Usage Page (FF00h),         */
130 	0x81, 0x03,         /*          Input (Constant, Variable), * Padding */
131 	0x15, 0x00,         /*          Logical Minimum (0),        */
132 	0x26, 0xFF, 0x00,   /*          Logical Maximum (255),      */
133 	0x05, 0x01,         /*          Usage Page (Desktop),       */
134 	0xA1, 0x00,         /*          Collection (Physical),      */
135 	0x75, 0x08,         /*              Report Size (8),        */
136 	0x95, 0x01,         /*              Report Count (1),       */
137 	0x35, 0x00,         /*              Physical Minimum (0),   */
138 	0x46, 0xFF, 0x00,   /*              Physical Maximum (255), */
139 	0x09, 0x30,         /*              Usage (X),              */
140 	0x81, 0x02,         /*              Input (Variable),       * Trigger */
141 	0xC0,               /*          End Collection,             */
142 	0x06, 0x00, 0xFF,   /*          Usage Page (FF00h),         */
143 	0x75, 0x08,         /*          Report Size (8),            */
144 	0x95, 0x07,         /*          Report Count (7),           * skip 7 bytes */
145 	0x81, 0x02,         /*          Input (Variable),           */
146 	0x05, 0x01,         /*          Usage Page (Desktop),       */
147 	0x75, 0x10,         /*          Report Size (16),           */
148 	0x46, 0xFF, 0xFF,   /*          Physical Maximum (65535),   */
149 	0x27, 0xFF, 0xFF, 0x00, 0x00, /*      Logical Maximum (65535),    */
150 	0x95, 0x03,         /*          Report Count (3),           * 3x Accels */
151 	0x09, 0x33,         /*              Usage (rX),             */
152 	0x09, 0x34,         /*              Usage (rY),             */
153 	0x09, 0x35,         /*              Usage (rZ),             */
154 	0x81, 0x02,         /*          Input (Variable),           */
155 	0x06, 0x00, 0xFF,   /*          Usage Page (FF00h),         */
156 	0x95, 0x03,         /*          Report Count (3),           * Skip Accels 2nd frame */
157 	0x81, 0x02,         /*          Input (Variable),           */
158 	0x05, 0x01,         /*          Usage Page (Desktop),       */
159 	0x09, 0x01,         /*          Usage (Pointer),            */
160 	0x95, 0x03,         /*          Report Count (3),           * 3x Gyros */
161 	0x81, 0x02,         /*          Input (Variable),           */
162 	0x06, 0x00, 0xFF,   /*          Usage Page (FF00h),         */
163 	0x95, 0x03,         /*          Report Count (3),           * Skip Gyros 2nd frame */
164 	0x81, 0x02,         /*          Input (Variable),           */
165 	0x75, 0x0C,         /*          Report Size (12),           */
166 	0x46, 0xFF, 0x0F,   /*          Physical Maximum (4095),    */
167 	0x26, 0xFF, 0x0F,   /*          Logical Maximum (4095),     */
168 	0x95, 0x04,         /*          Report Count (4),           * Skip Temp and Magnetometers */
169 	0x81, 0x02,         /*          Input (Variable),           */
170 	0x75, 0x08,         /*          Report Size (8),            */
171 	0x46, 0xFF, 0x00,   /*          Physical Maximum (255),     */
172 	0x26, 0xFF, 0x00,   /*          Logical Maximum (255),      */
173 	0x95, 0x06,         /*          Report Count (6),           * Skip Timestamp and Extension Bytes */
174 	0x81, 0x02,         /*          Input (Variable),           */
175 	0x75, 0x08,         /*          Report Size (8),            */
176 	0x95, 0x30,         /*          Report Count (48),          */
177 	0x09, 0x01,         /*          Usage (Pointer),            */
178 	0x91, 0x02,         /*          Output (Variable),          */
179 	0x75, 0x08,         /*          Report Size (8),            */
180 	0x95, 0x30,         /*          Report Count (48),          */
181 	0x09, 0x01,         /*          Usage (Pointer),            */
182 	0xB1, 0x02,         /*          Feature (Variable),         */
183 	0xC0,               /*      End Collection,                 */
184 	0xA1, 0x02,         /*      Collection (Logical),           */
185 	0x85, 0x02,         /*          Report ID (2),              */
186 	0x75, 0x08,         /*          Report Size (8),            */
187 	0x95, 0x30,         /*          Report Count (48),          */
188 	0x09, 0x01,         /*          Usage (Pointer),            */
189 	0xB1, 0x02,         /*          Feature (Variable),         */
190 	0xC0,               /*      End Collection,                 */
191 	0xA1, 0x02,         /*      Collection (Logical),           */
192 	0x85, 0xEE,         /*          Report ID (238),            */
193 	0x75, 0x08,         /*          Report Size (8),            */
194 	0x95, 0x30,         /*          Report Count (48),          */
195 	0x09, 0x01,         /*          Usage (Pointer),            */
196 	0xB1, 0x02,         /*          Feature (Variable),         */
197 	0xC0,               /*      End Collection,                 */
198 	0xA1, 0x02,         /*      Collection (Logical),           */
199 	0x85, 0xEF,         /*          Report ID (239),            */
200 	0x75, 0x08,         /*          Report Size (8),            */
201 	0x95, 0x30,         /*          Report Count (48),          */
202 	0x09, 0x01,         /*          Usage (Pointer),            */
203 	0xB1, 0x02,         /*          Feature (Variable),         */
204 	0xC0,               /*      End Collection,                 */
205 	0xC0                /*  End Collection                      */
206 };
207 
208 static u8 ps3remote_rdesc[] = {
209 	0x05, 0x01,          /* GUsagePage Generic Desktop */
210 	0x09, 0x05,          /* LUsage 0x05 [Game Pad] */
211 	0xA1, 0x01,          /* MCollection Application (mouse, keyboard) */
212 
213 	 /* Use collection 1 for joypad buttons */
214 	 0xA1, 0x02,         /* MCollection Logical (interrelated data) */
215 
216 	  /*
217 	   * Ignore the 1st byte, maybe it is used for a controller
218 	   * number but it's not needed for correct operation
219 	   */
220 	  0x75, 0x08,        /* GReportSize 0x08 [8] */
221 	  0x95, 0x01,        /* GReportCount 0x01 [1] */
222 	  0x81, 0x01,        /* MInput 0x01 (Const[0] Arr[1] Abs[2]) */
223 
224 	  /*
225 	   * Bytes from 2nd to 4th are a bitmap for joypad buttons, for these
226 	   * buttons multiple keypresses are allowed
227 	   */
228 	  0x05, 0x09,        /* GUsagePage Button */
229 	  0x19, 0x01,        /* LUsageMinimum 0x01 [Button 1 (primary/trigger)] */
230 	  0x29, 0x18,        /* LUsageMaximum 0x18 [Button 24] */
231 	  0x14,              /* GLogicalMinimum [0] */
232 	  0x25, 0x01,        /* GLogicalMaximum 0x01 [1] */
233 	  0x75, 0x01,        /* GReportSize 0x01 [1] */
234 	  0x95, 0x18,        /* GReportCount 0x18 [24] */
235 	  0x81, 0x02,        /* MInput 0x02 (Data[0] Var[1] Abs[2]) */
236 
237 	  0xC0,              /* MEndCollection */
238 
239 	 /* Use collection 2 for remote control buttons */
240 	 0xA1, 0x02,         /* MCollection Logical (interrelated data) */
241 
242 	  /* 5th byte is used for remote control buttons */
243 	  0x05, 0x09,        /* GUsagePage Button */
244 	  0x18,              /* LUsageMinimum [No button pressed] */
245 	  0x29, 0xFE,        /* LUsageMaximum 0xFE [Button 254] */
246 	  0x14,              /* GLogicalMinimum [0] */
247 	  0x26, 0xFE, 0x00,  /* GLogicalMaximum 0x00FE [254] */
248 	  0x75, 0x08,        /* GReportSize 0x08 [8] */
249 	  0x95, 0x01,        /* GReportCount 0x01 [1] */
250 	  0x80,              /* MInput  */
251 
252 	  /*
253 	   * Ignore bytes from 6th to 11th, 6th to 10th are always constant at
254 	   * 0xff and 11th is for press indication
255 	   */
256 	  0x75, 0x08,        /* GReportSize 0x08 [8] */
257 	  0x95, 0x06,        /* GReportCount 0x06 [6] */
258 	  0x81, 0x01,        /* MInput 0x01 (Const[0] Arr[1] Abs[2]) */
259 
260 	  /* 12th byte is for battery strength */
261 	  0x05, 0x06,        /* GUsagePage Generic Device Controls */
262 	  0x09, 0x20,        /* LUsage 0x20 [Battery Strength] */
263 	  0x14,              /* GLogicalMinimum [0] */
264 	  0x25, 0x05,        /* GLogicalMaximum 0x05 [5] */
265 	  0x75, 0x08,        /* GReportSize 0x08 [8] */
266 	  0x95, 0x01,        /* GReportCount 0x01 [1] */
267 	  0x81, 0x02,        /* MInput 0x02 (Data[0] Var[1] Abs[2]) */
268 
269 	  0xC0,              /* MEndCollection */
270 
271 	 0xC0                /* MEndCollection [Game Pad] */
272 };
273 
274 static const unsigned int ps3remote_keymap_joypad_buttons[] = {
275 	[0x01] = KEY_SELECT,
276 	[0x02] = BTN_THUMBL,		/* L3 */
277 	[0x03] = BTN_THUMBR,		/* R3 */
278 	[0x04] = BTN_START,
279 	[0x05] = KEY_UP,
280 	[0x06] = KEY_RIGHT,
281 	[0x07] = KEY_DOWN,
282 	[0x08] = KEY_LEFT,
283 	[0x09] = BTN_TL2,		/* L2 */
284 	[0x0a] = BTN_TR2,		/* R2 */
285 	[0x0b] = BTN_TL,		/* L1 */
286 	[0x0c] = BTN_TR,		/* R1 */
287 	[0x0d] = KEY_OPTION,		/* options/triangle */
288 	[0x0e] = KEY_BACK,		/* back/circle */
289 	[0x0f] = BTN_0,			/* cross */
290 	[0x10] = KEY_SCREEN,		/* view/square */
291 	[0x11] = KEY_HOMEPAGE,		/* PS button */
292 	[0x14] = KEY_ENTER,
293 };
294 static const unsigned int ps3remote_keymap_remote_buttons[] = {
295 	[0x00] = KEY_1,
296 	[0x01] = KEY_2,
297 	[0x02] = KEY_3,
298 	[0x03] = KEY_4,
299 	[0x04] = KEY_5,
300 	[0x05] = KEY_6,
301 	[0x06] = KEY_7,
302 	[0x07] = KEY_8,
303 	[0x08] = KEY_9,
304 	[0x09] = KEY_0,
305 	[0x0e] = KEY_ESC,		/* return */
306 	[0x0f] = KEY_CLEAR,
307 	[0x16] = KEY_EJECTCD,
308 	[0x1a] = KEY_MENU,		/* top menu */
309 	[0x28] = KEY_TIME,
310 	[0x30] = KEY_PREVIOUS,
311 	[0x31] = KEY_NEXT,
312 	[0x32] = KEY_PLAY,
313 	[0x33] = KEY_REWIND,		/* scan back */
314 	[0x34] = KEY_FORWARD,		/* scan forward */
315 	[0x38] = KEY_STOP,
316 	[0x39] = KEY_PAUSE,
317 	[0x40] = KEY_CONTEXT_MENU,	/* pop up/menu */
318 	[0x60] = KEY_FRAMEBACK,		/* slow/step back */
319 	[0x61] = KEY_FRAMEFORWARD,	/* slow/step forward */
320 	[0x63] = KEY_SUBTITLE,
321 	[0x64] = KEY_AUDIO,
322 	[0x65] = KEY_ANGLE,
323 	[0x70] = KEY_INFO,		/* display */
324 	[0x80] = KEY_BLUE,
325 	[0x81] = KEY_RED,
326 	[0x82] = KEY_GREEN,
327 	[0x83] = KEY_YELLOW,
328 };
329 
330 static const unsigned int buzz_keymap[] = {
331 	/*
332 	 * The controller has 4 remote buzzers, each with one LED and 5
333 	 * buttons.
334 	 *
335 	 * We use the mapping chosen by the controller, which is:
336 	 *
337 	 * Key          Offset
338 	 * -------------------
339 	 * Buzz              1
340 	 * Blue              5
341 	 * Orange            4
342 	 * Green             3
343 	 * Yellow            2
344 	 *
345 	 * So, for example, the orange button on the third buzzer is mapped to
346 	 * BTN_TRIGGER_HAPPY14
347 	 */
348 	 [1] = BTN_TRIGGER_HAPPY1,
349 	 [2] = BTN_TRIGGER_HAPPY2,
350 	 [3] = BTN_TRIGGER_HAPPY3,
351 	 [4] = BTN_TRIGGER_HAPPY4,
352 	 [5] = BTN_TRIGGER_HAPPY5,
353 	 [6] = BTN_TRIGGER_HAPPY6,
354 	 [7] = BTN_TRIGGER_HAPPY7,
355 	 [8] = BTN_TRIGGER_HAPPY8,
356 	 [9] = BTN_TRIGGER_HAPPY9,
357 	[10] = BTN_TRIGGER_HAPPY10,
358 	[11] = BTN_TRIGGER_HAPPY11,
359 	[12] = BTN_TRIGGER_HAPPY12,
360 	[13] = BTN_TRIGGER_HAPPY13,
361 	[14] = BTN_TRIGGER_HAPPY14,
362 	[15] = BTN_TRIGGER_HAPPY15,
363 	[16] = BTN_TRIGGER_HAPPY16,
364 	[17] = BTN_TRIGGER_HAPPY17,
365 	[18] = BTN_TRIGGER_HAPPY18,
366 	[19] = BTN_TRIGGER_HAPPY19,
367 	[20] = BTN_TRIGGER_HAPPY20,
368 };
369 
370 /* The Navigation controller is a partial DS3 and uses the same HID report
371  * and hence the same keymap indices, however not not all axes/buttons
372  * are physically present. We use the same axis and button mapping as
373  * the DS3, which uses the Linux gamepad spec.
374  */
375 static const unsigned int navigation_absmap[] = {
376 	[0x30] = ABS_X,
377 	[0x31] = ABS_Y,
378 	[0x33] = ABS_Z, /* L2 */
379 };
380 
381 /* Buttons not physically available on the device, but still available
382  * in the reports are explicitly set to 0 for documentation purposes.
383  */
384 static const unsigned int navigation_keymap[] = {
385 	[0x01] = 0, /* Select */
386 	[0x02] = BTN_THUMBL, /* L3 */
387 	[0x03] = 0, /* R3 */
388 	[0x04] = 0, /* Start */
389 	[0x05] = BTN_DPAD_UP, /* Up */
390 	[0x06] = BTN_DPAD_RIGHT, /* Right */
391 	[0x07] = BTN_DPAD_DOWN, /* Down */
392 	[0x08] = BTN_DPAD_LEFT, /* Left */
393 	[0x09] = BTN_TL2, /* L2 */
394 	[0x0a] = 0, /* R2 */
395 	[0x0b] = BTN_TL, /* L1 */
396 	[0x0c] = 0, /* R1 */
397 	[0x0d] = BTN_NORTH, /* Triangle */
398 	[0x0e] = BTN_EAST, /* Circle */
399 	[0x0f] = BTN_SOUTH, /* Cross */
400 	[0x10] = BTN_WEST, /* Square */
401 	[0x11] = BTN_MODE, /* PS */
402 };
403 
404 static const unsigned int sixaxis_absmap[] = {
405 	[0x30] = ABS_X,
406 	[0x31] = ABS_Y,
407 	[0x32] = ABS_RX, /* right stick X */
408 	[0x35] = ABS_RY, /* right stick Y */
409 };
410 
411 static const unsigned int sixaxis_keymap[] = {
412 	[0x01] = BTN_SELECT, /* Select */
413 	[0x02] = BTN_THUMBL, /* L3 */
414 	[0x03] = BTN_THUMBR, /* R3 */
415 	[0x04] = BTN_START, /* Start */
416 	[0x05] = BTN_DPAD_UP, /* Up */
417 	[0x06] = BTN_DPAD_RIGHT, /* Right */
418 	[0x07] = BTN_DPAD_DOWN, /* Down */
419 	[0x08] = BTN_DPAD_LEFT, /* Left */
420 	[0x09] = BTN_TL2, /* L2 */
421 	[0x0a] = BTN_TR2, /* R2 */
422 	[0x0b] = BTN_TL, /* L1 */
423 	[0x0c] = BTN_TR, /* R1 */
424 	[0x0d] = BTN_NORTH, /* Triangle */
425 	[0x0e] = BTN_EAST, /* Circle */
426 	[0x0f] = BTN_SOUTH, /* Cross */
427 	[0x10] = BTN_WEST, /* Square */
428 	[0x11] = BTN_MODE, /* PS */
429 };
430 
431 static const unsigned int ds4_absmap[] = {
432 	[0x30] = ABS_X,
433 	[0x31] = ABS_Y,
434 	[0x32] = ABS_RX, /* right stick X */
435 	[0x33] = ABS_Z, /* L2 */
436 	[0x34] = ABS_RZ, /* R2 */
437 	[0x35] = ABS_RY, /* right stick Y */
438 };
439 
440 static const unsigned int ds4_keymap[] = {
441 	[0x1] = BTN_WEST, /* Square */
442 	[0x2] = BTN_SOUTH, /* Cross */
443 	[0x3] = BTN_EAST, /* Circle */
444 	[0x4] = BTN_NORTH, /* Triangle */
445 	[0x5] = BTN_TL, /* L1 */
446 	[0x6] = BTN_TR, /* R1 */
447 	[0x7] = BTN_TL2, /* L2 */
448 	[0x8] = BTN_TR2, /* R2 */
449 	[0x9] = BTN_SELECT, /* Share */
450 	[0xa] = BTN_START, /* Options */
451 	[0xb] = BTN_THUMBL, /* L3 */
452 	[0xc] = BTN_THUMBR, /* R3 */
453 	[0xd] = BTN_MODE, /* PS */
454 };
455 
456 static const struct {int x; int y; } ds4_hat_mapping[] = {
457 	{0, -1}, {1, -1}, {1, 0}, {1, 1}, {0, 1}, {-1, 1}, {-1, 0}, {-1, -1},
458 	{0, 0}
459 };
460 
461 static enum power_supply_property sony_battery_props[] = {
462 	POWER_SUPPLY_PROP_PRESENT,
463 	POWER_SUPPLY_PROP_CAPACITY,
464 	POWER_SUPPLY_PROP_SCOPE,
465 	POWER_SUPPLY_PROP_STATUS,
466 };
467 
468 struct sixaxis_led {
469 	u8 time_enabled; /* the total time the led is active (0xff means forever) */
470 	u8 duty_length;  /* how long a cycle is in deciseconds (0 means "really fast") */
471 	u8 enabled;
472 	u8 duty_off; /* % of duty_length the led is off (0xff means 100%) */
473 	u8 duty_on;  /* % of duty_length the led is on (0xff mean 100%) */
474 } __packed;
475 
476 struct sixaxis_rumble {
477 	u8 padding;
478 	u8 right_duration; /* Right motor duration (0xff means forever) */
479 	u8 right_motor_on; /* Right (small) motor on/off, only supports values of 0 or 1 (off/on) */
480 	u8 left_duration;    /* Left motor duration (0xff means forever) */
481 	u8 left_motor_force; /* left (large) motor, supports force values from 0 to 255 */
482 } __packed;
483 
484 struct sixaxis_output_report {
485 	u8 report_id;
486 	struct sixaxis_rumble rumble;
487 	u8 padding[4];
488 	u8 leds_bitmap; /* bitmap of enabled LEDs: LED_1 = 0x02, LED_2 = 0x04, ... */
489 	struct sixaxis_led led[4];    /* LEDx at (4 - x) */
490 	struct sixaxis_led _reserved; /* LED5, not actually soldered */
491 } __packed;
492 
493 union sixaxis_output_report_01 {
494 	struct sixaxis_output_report data;
495 	u8 buf[36];
496 };
497 
498 struct motion_output_report_02 {
499 	u8 type, zero;
500 	u8 r, g, b;
501 	u8 zero2;
502 	u8 rumble;
503 };
504 
505 #define DS4_FEATURE_REPORT_0x02_SIZE 37
506 #define DS4_FEATURE_REPORT_0x05_SIZE 41
507 #define DS4_FEATURE_REPORT_0x81_SIZE 7
508 #define DS4_FEATURE_REPORT_0xA3_SIZE 49
509 #define DS4_INPUT_REPORT_0x11_SIZE 78
510 #define DS4_OUTPUT_REPORT_0x05_SIZE 32
511 #define DS4_OUTPUT_REPORT_0x11_SIZE 78
512 #define SIXAXIS_REPORT_0xF2_SIZE 17
513 #define SIXAXIS_REPORT_0xF5_SIZE 8
514 #define MOTION_REPORT_0x02_SIZE 49
515 
516 /* Offsets relative to USB input report (0x1). Bluetooth (0x11) requires an
517  * additional +2.
518  */
519 #define DS4_INPUT_REPORT_AXIS_OFFSET      1
520 #define DS4_INPUT_REPORT_BUTTON_OFFSET    5
521 #define DS4_INPUT_REPORT_TIMESTAMP_OFFSET 10
522 #define DS4_INPUT_REPORT_GYRO_X_OFFSET   13
523 #define DS4_INPUT_REPORT_BATTERY_OFFSET  30
524 #define DS4_INPUT_REPORT_TOUCHPAD_OFFSET 33
525 
526 #define SENSOR_SUFFIX " Motion Sensors"
527 #define DS4_TOUCHPAD_SUFFIX " Touchpad"
528 
529 /* Default to 4ms poll interval, which is same as USB (not adjustable). */
530 #define DS4_BT_DEFAULT_POLL_INTERVAL_MS 4
531 #define DS4_BT_MAX_POLL_INTERVAL_MS 62
532 #define DS4_GYRO_RES_PER_DEG_S 1024
533 #define DS4_ACC_RES_PER_G      8192
534 
535 #define SIXAXIS_INPUT_REPORT_ACC_X_OFFSET 41
536 #define SIXAXIS_ACC_RES_PER_G 113
537 
538 static DEFINE_SPINLOCK(sony_dev_list_lock);
539 static LIST_HEAD(sony_device_list);
540 static DEFINE_IDA(sony_device_id_allocator);
541 
542 /* Used for calibration of DS4 accelerometer and gyro. */
543 struct ds4_calibration_data {
544 	int abs_code;
545 	short bias;
546 	/* Calibration requires scaling against a sensitivity value, which is a
547 	 * float. Store sensitivity as a fraction to limit floating point
548 	 * calculations until final calibration.
549 	 */
550 	int sens_numer;
551 	int sens_denom;
552 };
553 
554 enum ds4_dongle_state {
555 	DONGLE_DISCONNECTED,
556 	DONGLE_CALIBRATING,
557 	DONGLE_CONNECTED,
558 	DONGLE_DISABLED
559 };
560 
561 enum sony_worker {
562 	SONY_WORKER_STATE,
563 	SONY_WORKER_HOTPLUG
564 };
565 
566 struct sony_sc {
567 	spinlock_t lock;
568 	struct list_head list_node;
569 	struct hid_device *hdev;
570 	struct input_dev *touchpad;
571 	struct input_dev *sensor_dev;
572 	struct led_classdev *leds[MAX_LEDS];
573 	unsigned long quirks;
574 	struct work_struct hotplug_worker;
575 	struct work_struct state_worker;
576 	void (*send_output_report)(struct sony_sc *);
577 	struct power_supply *battery;
578 	struct power_supply_desc battery_desc;
579 	int device_id;
580 	unsigned fw_version;
581 	bool fw_version_created;
582 	unsigned hw_version;
583 	bool hw_version_created;
584 	u8 *output_report_dmabuf;
585 
586 #ifdef CONFIG_SONY_FF
587 	u8 left;
588 	u8 right;
589 #endif
590 
591 	u8 mac_address[6];
592 	u8 hotplug_worker_initialized;
593 	u8 state_worker_initialized;
594 	u8 defer_initialization;
595 	u8 battery_capacity;
596 	int battery_status;
597 	u8 led_state[MAX_LEDS];
598 	u8 led_delay_on[MAX_LEDS];
599 	u8 led_delay_off[MAX_LEDS];
600 	u8 led_count;
601 
602 	bool timestamp_initialized;
603 	u16 prev_timestamp;
604 	unsigned int timestamp_us;
605 
606 	u8 ds4_bt_poll_interval;
607 	enum ds4_dongle_state ds4_dongle_state;
608 	/* DS4 calibration data */
609 	struct ds4_calibration_data ds4_calib_data[6];
610 	/* GH Live */
611 	struct urb *ghl_urb;
612 	struct timer_list ghl_poke_timer;
613 };
614 
615 static void sony_set_leds(struct sony_sc *sc);
616 
617 static inline void sony_schedule_work(struct sony_sc *sc,
618 				      enum sony_worker which)
619 {
620 	unsigned long flags;
621 
622 	switch (which) {
623 	case SONY_WORKER_STATE:
624 		spin_lock_irqsave(&sc->lock, flags);
625 		if (!sc->defer_initialization && sc->state_worker_initialized)
626 			schedule_work(&sc->state_worker);
627 		spin_unlock_irqrestore(&sc->lock, flags);
628 		break;
629 	case SONY_WORKER_HOTPLUG:
630 		if (sc->hotplug_worker_initialized)
631 			schedule_work(&sc->hotplug_worker);
632 		break;
633 	}
634 }
635 
636 static void ghl_magic_poke_cb(struct urb *urb)
637 {
638 	struct sony_sc *sc = urb->context;
639 
640 	if (urb->status < 0)
641 		hid_err(sc->hdev, "URB transfer failed : %d", urb->status);
642 
643 	mod_timer(&sc->ghl_poke_timer, jiffies + GHL_GUITAR_POKE_INTERVAL*HZ);
644 }
645 
646 static void ghl_magic_poke(struct timer_list *t)
647 {
648 	int ret;
649 	struct sony_sc *sc = from_timer(sc, t, ghl_poke_timer);
650 
651 	ret = usb_submit_urb(sc->ghl_urb, GFP_ATOMIC);
652 	if (ret < 0)
653 		hid_err(sc->hdev, "usb_submit_urb failed: %d", ret);
654 }
655 
656 static int ghl_init_urb(struct sony_sc *sc, struct usb_device *usbdev,
657 					   const char ghl_magic_data[], u16 poke_size)
658 {
659 	struct usb_ctrlrequest *cr;
660 	u8 *databuf;
661 	unsigned int pipe;
662 	u16 ghl_magic_value = (((HID_OUTPUT_REPORT + 1) << 8) | ghl_magic_data[0]);
663 
664 	pipe = usb_sndctrlpipe(usbdev, 0);
665 
666 	cr = devm_kzalloc(&sc->hdev->dev, sizeof(*cr), GFP_ATOMIC);
667 	if (cr == NULL)
668 		return -ENOMEM;
669 
670 	databuf = devm_kzalloc(&sc->hdev->dev, poke_size, GFP_ATOMIC);
671 	if (databuf == NULL)
672 		return -ENOMEM;
673 
674 	cr->bRequestType =
675 		USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT;
676 	cr->bRequest = USB_REQ_SET_CONFIGURATION;
677 	cr->wValue = cpu_to_le16(ghl_magic_value);
678 	cr->wIndex = 0;
679 	cr->wLength = cpu_to_le16(poke_size);
680 	memcpy(databuf, ghl_magic_data, poke_size);
681 	usb_fill_control_urb(
682 		sc->ghl_urb, usbdev, pipe,
683 		(unsigned char *) cr, databuf, poke_size,
684 		ghl_magic_poke_cb, sc);
685 	return 0;
686 }
687 
688 static int guitar_mapping(struct hid_device *hdev, struct hid_input *hi,
689 			  struct hid_field *field, struct hid_usage *usage,
690 			  unsigned long **bit, int *max)
691 {
692 	if ((usage->hid & HID_USAGE_PAGE) == HID_UP_MSVENDOR) {
693 		unsigned int abs = usage->hid & HID_USAGE;
694 
695 		if (abs == GUITAR_TILT_USAGE) {
696 			hid_map_usage_clear(hi, usage, bit, max, EV_ABS, ABS_RY);
697 			return 1;
698 		}
699 	}
700 	return 0;
701 }
702 
703 static ssize_t ds4_show_poll_interval(struct device *dev,
704 				struct device_attribute
705 				*attr, char *buf)
706 {
707 	struct hid_device *hdev = to_hid_device(dev);
708 	struct sony_sc *sc = hid_get_drvdata(hdev);
709 
710 	return snprintf(buf, PAGE_SIZE, "%i\n", sc->ds4_bt_poll_interval);
711 }
712 
713 static ssize_t ds4_store_poll_interval(struct device *dev,
714 				struct device_attribute *attr,
715 				const char *buf, size_t count)
716 {
717 	struct hid_device *hdev = to_hid_device(dev);
718 	struct sony_sc *sc = hid_get_drvdata(hdev);
719 	unsigned long flags;
720 	u8 interval;
721 
722 	if (kstrtou8(buf, 0, &interval))
723 		return -EINVAL;
724 
725 	if (interval > DS4_BT_MAX_POLL_INTERVAL_MS)
726 		return -EINVAL;
727 
728 	spin_lock_irqsave(&sc->lock, flags);
729 	sc->ds4_bt_poll_interval = interval;
730 	spin_unlock_irqrestore(&sc->lock, flags);
731 
732 	sony_schedule_work(sc, SONY_WORKER_STATE);
733 
734 	return count;
735 }
736 
737 static DEVICE_ATTR(bt_poll_interval, 0644, ds4_show_poll_interval,
738 		ds4_store_poll_interval);
739 
740 static ssize_t sony_show_firmware_version(struct device *dev,
741 				struct device_attribute
742 				*attr, char *buf)
743 {
744 	struct hid_device *hdev = to_hid_device(dev);
745 	struct sony_sc *sc = hid_get_drvdata(hdev);
746 
747 	return snprintf(buf, PAGE_SIZE, "0x%04x\n", sc->fw_version);
748 }
749 
750 static DEVICE_ATTR(firmware_version, 0444, sony_show_firmware_version, NULL);
751 
752 static ssize_t sony_show_hardware_version(struct device *dev,
753 				struct device_attribute
754 				*attr, char *buf)
755 {
756 	struct hid_device *hdev = to_hid_device(dev);
757 	struct sony_sc *sc = hid_get_drvdata(hdev);
758 
759 	return snprintf(buf, PAGE_SIZE, "0x%04x\n", sc->hw_version);
760 }
761 
762 static DEVICE_ATTR(hardware_version, 0444, sony_show_hardware_version, NULL);
763 
764 static u8 *motion_fixup(struct hid_device *hdev, u8 *rdesc,
765 			     unsigned int *rsize)
766 {
767 	*rsize = sizeof(motion_rdesc);
768 	return motion_rdesc;
769 }
770 
771 static u8 *ps3remote_fixup(struct hid_device *hdev, u8 *rdesc,
772 			     unsigned int *rsize)
773 {
774 	*rsize = sizeof(ps3remote_rdesc);
775 	return ps3remote_rdesc;
776 }
777 
778 static int ps3remote_mapping(struct hid_device *hdev, struct hid_input *hi,
779 			     struct hid_field *field, struct hid_usage *usage,
780 			     unsigned long **bit, int *max)
781 {
782 	unsigned int key = usage->hid & HID_USAGE;
783 
784 	if ((usage->hid & HID_USAGE_PAGE) != HID_UP_BUTTON)
785 		return -1;
786 
787 	switch (usage->collection_index) {
788 	case 1:
789 		if (key >= ARRAY_SIZE(ps3remote_keymap_joypad_buttons))
790 			return -1;
791 
792 		key = ps3remote_keymap_joypad_buttons[key];
793 		if (!key)
794 			return -1;
795 		break;
796 	case 2:
797 		if (key >= ARRAY_SIZE(ps3remote_keymap_remote_buttons))
798 			return -1;
799 
800 		key = ps3remote_keymap_remote_buttons[key];
801 		if (!key)
802 			return -1;
803 		break;
804 	default:
805 		return -1;
806 	}
807 
808 	hid_map_usage_clear(hi, usage, bit, max, EV_KEY, key);
809 	return 1;
810 }
811 
812 static int navigation_mapping(struct hid_device *hdev, struct hid_input *hi,
813 			  struct hid_field *field, struct hid_usage *usage,
814 			  unsigned long **bit, int *max)
815 {
816 	if ((usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON) {
817 		unsigned int key = usage->hid & HID_USAGE;
818 
819 		if (key >= ARRAY_SIZE(sixaxis_keymap))
820 			return -1;
821 
822 		key = navigation_keymap[key];
823 		if (!key)
824 			return -1;
825 
826 		hid_map_usage_clear(hi, usage, bit, max, EV_KEY, key);
827 		return 1;
828 	} else if (usage->hid == HID_GD_POINTER) {
829 		/* See comment in sixaxis_mapping, basically the L2 (and R2)
830 		 * triggers are reported through GD Pointer.
831 		 * In addition we ignore any analog button 'axes' and only
832 		 * support digital buttons.
833 		 */
834 		switch (usage->usage_index) {
835 		case 8: /* L2 */
836 			usage->hid = HID_GD_Z;
837 			break;
838 		default:
839 			return -1;
840 		}
841 
842 		hid_map_usage_clear(hi, usage, bit, max, EV_ABS, usage->hid & 0xf);
843 		return 1;
844 	} else if ((usage->hid & HID_USAGE_PAGE) == HID_UP_GENDESK) {
845 		unsigned int abs = usage->hid & HID_USAGE;
846 
847 		if (abs >= ARRAY_SIZE(navigation_absmap))
848 			return -1;
849 
850 		abs = navigation_absmap[abs];
851 
852 		hid_map_usage_clear(hi, usage, bit, max, EV_ABS, abs);
853 		return 1;
854 	}
855 
856 	return -1;
857 }
858 
859 
860 static int sixaxis_mapping(struct hid_device *hdev, struct hid_input *hi,
861 			  struct hid_field *field, struct hid_usage *usage,
862 			  unsigned long **bit, int *max)
863 {
864 	if ((usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON) {
865 		unsigned int key = usage->hid & HID_USAGE;
866 
867 		if (key >= ARRAY_SIZE(sixaxis_keymap))
868 			return -1;
869 
870 		key = sixaxis_keymap[key];
871 		hid_map_usage_clear(hi, usage, bit, max, EV_KEY, key);
872 		return 1;
873 	} else if (usage->hid == HID_GD_POINTER) {
874 		/* The DS3 provides analog values for most buttons and even
875 		 * for HAT axes through GD Pointer. L2 and R2 are reported
876 		 * among these as well instead of as GD Z / RZ. Remap L2
877 		 * and R2 and ignore other analog 'button axes' as there is
878 		 * no good way for reporting them.
879 		 */
880 		switch (usage->usage_index) {
881 		case 8: /* L2 */
882 			usage->hid = HID_GD_Z;
883 			break;
884 		case 9: /* R2 */
885 			usage->hid = HID_GD_RZ;
886 			break;
887 		default:
888 			return -1;
889 		}
890 
891 		hid_map_usage_clear(hi, usage, bit, max, EV_ABS, usage->hid & 0xf);
892 		return 1;
893 	} else if ((usage->hid & HID_USAGE_PAGE) == HID_UP_GENDESK) {
894 		unsigned int abs = usage->hid & HID_USAGE;
895 
896 		if (abs >= ARRAY_SIZE(sixaxis_absmap))
897 			return -1;
898 
899 		abs = sixaxis_absmap[abs];
900 
901 		hid_map_usage_clear(hi, usage, bit, max, EV_ABS, abs);
902 		return 1;
903 	}
904 
905 	return -1;
906 }
907 
908 static int ds4_mapping(struct hid_device *hdev, struct hid_input *hi,
909 		       struct hid_field *field, struct hid_usage *usage,
910 		       unsigned long **bit, int *max)
911 {
912 	if ((usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON) {
913 		unsigned int key = usage->hid & HID_USAGE;
914 
915 		if (key >= ARRAY_SIZE(ds4_keymap))
916 			return -1;
917 
918 		key = ds4_keymap[key];
919 		hid_map_usage_clear(hi, usage, bit, max, EV_KEY, key);
920 		return 1;
921 	} else if ((usage->hid & HID_USAGE_PAGE) == HID_UP_GENDESK) {
922 		unsigned int abs = usage->hid & HID_USAGE;
923 
924 		/* Let the HID parser deal with the HAT. */
925 		if (usage->hid == HID_GD_HATSWITCH)
926 			return 0;
927 
928 		if (abs >= ARRAY_SIZE(ds4_absmap))
929 			return -1;
930 
931 		abs = ds4_absmap[abs];
932 		hid_map_usage_clear(hi, usage, bit, max, EV_ABS, abs);
933 		return 1;
934 	}
935 
936 	return 0;
937 }
938 
939 static u8 *sony_report_fixup(struct hid_device *hdev, u8 *rdesc,
940 		unsigned int *rsize)
941 {
942 	struct sony_sc *sc = hid_get_drvdata(hdev);
943 
944 	if (sc->quirks & (SINO_LITE_CONTROLLER | FUTUREMAX_DANCE_MAT))
945 		return rdesc;
946 
947 	/*
948 	 * Some Sony RF receivers wrongly declare the mouse pointer as a
949 	 * a constant non-data variable.
950 	 */
951 	if ((sc->quirks & VAIO_RDESC_CONSTANT) && *rsize >= 56 &&
952 	    /* usage page: generic desktop controls */
953 	    /* rdesc[0] == 0x05 && rdesc[1] == 0x01 && */
954 	    /* usage: mouse */
955 	    rdesc[2] == 0x09 && rdesc[3] == 0x02 &&
956 	    /* input (usage page for x,y axes): constant, variable, relative */
957 	    rdesc[54] == 0x81 && rdesc[55] == 0x07) {
958 		hid_info(hdev, "Fixing up Sony RF Receiver report descriptor\n");
959 		/* input: data, variable, relative */
960 		rdesc[55] = 0x06;
961 	}
962 
963 	if (sc->quirks & MOTION_CONTROLLER)
964 		return motion_fixup(hdev, rdesc, rsize);
965 
966 	if (sc->quirks & PS3REMOTE)
967 		return ps3remote_fixup(hdev, rdesc, rsize);
968 
969 	/*
970 	 * Some knock-off USB dongles incorrectly report their button count
971 	 * as 13 instead of 16 causing three non-functional buttons.
972 	 */
973 	if ((sc->quirks & SIXAXIS_CONTROLLER_USB) && *rsize >= 45 &&
974 		/* Report Count (13) */
975 		rdesc[23] == 0x95 && rdesc[24] == 0x0D &&
976 		/* Usage Maximum (13) */
977 		rdesc[37] == 0x29 && rdesc[38] == 0x0D &&
978 		/* Report Count (3) */
979 		rdesc[43] == 0x95 && rdesc[44] == 0x03) {
980 		hid_info(hdev, "Fixing up USB dongle report descriptor\n");
981 		rdesc[24] = 0x10;
982 		rdesc[38] = 0x10;
983 		rdesc[44] = 0x00;
984 	}
985 
986 	return rdesc;
987 }
988 
989 static void sixaxis_parse_report(struct sony_sc *sc, u8 *rd, int size)
990 {
991 	static const u8 sixaxis_battery_capacity[] = { 0, 1, 25, 50, 75, 100 };
992 	unsigned long flags;
993 	int offset;
994 	u8 battery_capacity;
995 	int battery_status;
996 
997 	/*
998 	 * The sixaxis is charging if the battery value is 0xee
999 	 * and it is fully charged if the value is 0xef.
1000 	 * It does not report the actual level while charging so it
1001 	 * is set to 100% while charging is in progress.
1002 	 */
1003 	offset = (sc->quirks & MOTION_CONTROLLER) ? 12 : 30;
1004 
1005 	if (rd[offset] >= 0xee) {
1006 		battery_capacity = 100;
1007 		battery_status = (rd[offset] & 0x01) ? POWER_SUPPLY_STATUS_FULL : POWER_SUPPLY_STATUS_CHARGING;
1008 	} else {
1009 		u8 index = rd[offset] <= 5 ? rd[offset] : 5;
1010 		battery_capacity = sixaxis_battery_capacity[index];
1011 		battery_status = POWER_SUPPLY_STATUS_DISCHARGING;
1012 	}
1013 
1014 	spin_lock_irqsave(&sc->lock, flags);
1015 	sc->battery_capacity = battery_capacity;
1016 	sc->battery_status = battery_status;
1017 	spin_unlock_irqrestore(&sc->lock, flags);
1018 
1019 	if (sc->quirks & SIXAXIS_CONTROLLER) {
1020 		int val;
1021 
1022 		offset = SIXAXIS_INPUT_REPORT_ACC_X_OFFSET;
1023 		val = ((rd[offset+1] << 8) | rd[offset]) - 511;
1024 		input_report_abs(sc->sensor_dev, ABS_X, val);
1025 
1026 		/* Y and Z are swapped and inversed */
1027 		val = 511 - ((rd[offset+5] << 8) | rd[offset+4]);
1028 		input_report_abs(sc->sensor_dev, ABS_Y, val);
1029 
1030 		val = 511 - ((rd[offset+3] << 8) | rd[offset+2]);
1031 		input_report_abs(sc->sensor_dev, ABS_Z, val);
1032 
1033 		input_sync(sc->sensor_dev);
1034 	}
1035 }
1036 
1037 static void dualshock4_parse_report(struct sony_sc *sc, u8 *rd, int size)
1038 {
1039 	struct hid_input *hidinput = list_entry(sc->hdev->inputs.next,
1040 						struct hid_input, list);
1041 	struct input_dev *input_dev = hidinput->input;
1042 	unsigned long flags;
1043 	int n, m, offset, num_touch_data, max_touch_data;
1044 	u8 cable_state, battery_capacity;
1045 	int battery_status;
1046 	u16 timestamp;
1047 
1048 	/* When using Bluetooth the header is 2 bytes longer, so skip these. */
1049 	int data_offset = (sc->quirks & DUALSHOCK4_CONTROLLER_BT) ? 2 : 0;
1050 
1051 	/* Second bit of third button byte is for the touchpad button. */
1052 	offset = data_offset + DS4_INPUT_REPORT_BUTTON_OFFSET;
1053 	input_report_key(sc->touchpad, BTN_LEFT, rd[offset+2] & 0x2);
1054 
1055 	/*
1056 	 * The default behavior of the Dualshock 4 is to send reports using
1057 	 * report type 1 when running over Bluetooth. However, when feature
1058 	 * report 2 is requested during the controller initialization it starts
1059 	 * sending input reports in report 17. Since report 17 is undefined
1060 	 * in the default HID descriptor, the HID layer won't generate events.
1061 	 * While it is possible (and this was done before) to fixup the HID
1062 	 * descriptor to add this mapping, it was better to do this manually.
1063 	 * The reason is there were various pieces software both open and closed
1064 	 * source, relying on the descriptors to be the same across various
1065 	 * operating systems. If the descriptors wouldn't match some
1066 	 * applications e.g. games on Wine would not be able to function due
1067 	 * to different descriptors, which such applications are not parsing.
1068 	 */
1069 	if (rd[0] == 17) {
1070 		int value;
1071 
1072 		offset = data_offset + DS4_INPUT_REPORT_AXIS_OFFSET;
1073 		input_report_abs(input_dev, ABS_X, rd[offset]);
1074 		input_report_abs(input_dev, ABS_Y, rd[offset+1]);
1075 		input_report_abs(input_dev, ABS_RX, rd[offset+2]);
1076 		input_report_abs(input_dev, ABS_RY, rd[offset+3]);
1077 
1078 		value = rd[offset+4] & 0xf;
1079 		if (value > 7)
1080 			value = 8; /* Center 0, 0 */
1081 		input_report_abs(input_dev, ABS_HAT0X, ds4_hat_mapping[value].x);
1082 		input_report_abs(input_dev, ABS_HAT0Y, ds4_hat_mapping[value].y);
1083 
1084 		input_report_key(input_dev, BTN_WEST, rd[offset+4] & 0x10);
1085 		input_report_key(input_dev, BTN_SOUTH, rd[offset+4] & 0x20);
1086 		input_report_key(input_dev, BTN_EAST, rd[offset+4] & 0x40);
1087 		input_report_key(input_dev, BTN_NORTH, rd[offset+4] & 0x80);
1088 
1089 		input_report_key(input_dev, BTN_TL, rd[offset+5] & 0x1);
1090 		input_report_key(input_dev, BTN_TR, rd[offset+5] & 0x2);
1091 		input_report_key(input_dev, BTN_TL2, rd[offset+5] & 0x4);
1092 		input_report_key(input_dev, BTN_TR2, rd[offset+5] & 0x8);
1093 		input_report_key(input_dev, BTN_SELECT, rd[offset+5] & 0x10);
1094 		input_report_key(input_dev, BTN_START, rd[offset+5] & 0x20);
1095 		input_report_key(input_dev, BTN_THUMBL, rd[offset+5] & 0x40);
1096 		input_report_key(input_dev, BTN_THUMBR, rd[offset+5] & 0x80);
1097 
1098 		input_report_key(input_dev, BTN_MODE, rd[offset+6] & 0x1);
1099 
1100 		input_report_abs(input_dev, ABS_Z, rd[offset+7]);
1101 		input_report_abs(input_dev, ABS_RZ, rd[offset+8]);
1102 
1103 		input_sync(input_dev);
1104 	}
1105 
1106 	/* Convert timestamp (in 5.33us unit) to timestamp_us */
1107 	offset = data_offset + DS4_INPUT_REPORT_TIMESTAMP_OFFSET;
1108 	timestamp = get_unaligned_le16(&rd[offset]);
1109 	if (!sc->timestamp_initialized) {
1110 		sc->timestamp_us = ((unsigned int)timestamp * 16) / 3;
1111 		sc->timestamp_initialized = true;
1112 	} else {
1113 		u16 delta;
1114 
1115 		if (sc->prev_timestamp > timestamp)
1116 			delta = (U16_MAX - sc->prev_timestamp + timestamp + 1);
1117 		else
1118 			delta = timestamp - sc->prev_timestamp;
1119 		sc->timestamp_us += (delta * 16) / 3;
1120 	}
1121 	sc->prev_timestamp = timestamp;
1122 	input_event(sc->sensor_dev, EV_MSC, MSC_TIMESTAMP, sc->timestamp_us);
1123 
1124 	offset = data_offset + DS4_INPUT_REPORT_GYRO_X_OFFSET;
1125 	for (n = 0; n < 6; n++) {
1126 		/* Store data in int for more precision during mult_frac. */
1127 		int raw_data = (short)((rd[offset+1] << 8) | rd[offset]);
1128 		struct ds4_calibration_data *calib = &sc->ds4_calib_data[n];
1129 
1130 		/* High precision is needed during calibration, but the
1131 		 * calibrated values are within 32-bit.
1132 		 * Note: we swap numerator 'x' and 'numer' in mult_frac for
1133 		 *       precision reasons so we don't need 64-bit.
1134 		 */
1135 		int calib_data = mult_frac(calib->sens_numer,
1136 					   raw_data - calib->bias,
1137 					   calib->sens_denom);
1138 
1139 		input_report_abs(sc->sensor_dev, calib->abs_code, calib_data);
1140 		offset += 2;
1141 	}
1142 	input_sync(sc->sensor_dev);
1143 
1144 	/*
1145 	 * The lower 4 bits of byte 30 (or 32 for BT) contain the battery level
1146 	 * and the 5th bit contains the USB cable state.
1147 	 */
1148 	offset = data_offset + DS4_INPUT_REPORT_BATTERY_OFFSET;
1149 	cable_state = (rd[offset] >> 4) & 0x01;
1150 
1151 	/*
1152 	 * Interpretation of the battery_capacity data depends on the cable state.
1153 	 * When no cable is connected (bit4 is 0):
1154 	 * - 0:10: percentage in units of 10%.
1155 	 * When a cable is plugged in:
1156 	 * - 0-10: percentage in units of 10%.
1157 	 * - 11: battery is full
1158 	 * - 14: not charging due to Voltage or temperature error
1159 	 * - 15: charge error
1160 	 */
1161 	if (cable_state) {
1162 		u8 battery_data = rd[offset] & 0xf;
1163 
1164 		if (battery_data < 10) {
1165 			/* Take the mid-point for each battery capacity value,
1166 			 * because on the hardware side 0 = 0-9%, 1=10-19%, etc.
1167 			 * This matches official platform behavior, which does
1168 			 * the same.
1169 			 */
1170 			battery_capacity = battery_data * 10 + 5;
1171 			battery_status = POWER_SUPPLY_STATUS_CHARGING;
1172 		} else if (battery_data == 10) {
1173 			battery_capacity = 100;
1174 			battery_status = POWER_SUPPLY_STATUS_CHARGING;
1175 		} else if (battery_data == 11) {
1176 			battery_capacity = 100;
1177 			battery_status = POWER_SUPPLY_STATUS_FULL;
1178 		} else { /* 14, 15 and undefined values */
1179 			battery_capacity = 0;
1180 			battery_status = POWER_SUPPLY_STATUS_UNKNOWN;
1181 		}
1182 	} else {
1183 		u8 battery_data = rd[offset] & 0xf;
1184 
1185 		if (battery_data < 10)
1186 			battery_capacity = battery_data * 10 + 5;
1187 		else /* 10 */
1188 			battery_capacity = 100;
1189 
1190 		battery_status = POWER_SUPPLY_STATUS_DISCHARGING;
1191 	}
1192 
1193 	spin_lock_irqsave(&sc->lock, flags);
1194 	sc->battery_capacity = battery_capacity;
1195 	sc->battery_status = battery_status;
1196 	spin_unlock_irqrestore(&sc->lock, flags);
1197 
1198 	/*
1199 	 * The Dualshock 4 multi-touch trackpad data starts at offset 33 on USB
1200 	 * and 35 on Bluetooth.
1201 	 * The first byte indicates the number of touch data in the report.
1202 	 * Trackpad data starts 2 bytes later (e.g. 35 for USB).
1203 	 */
1204 	offset = data_offset + DS4_INPUT_REPORT_TOUCHPAD_OFFSET;
1205 	max_touch_data = (sc->quirks & DUALSHOCK4_CONTROLLER_BT) ? 4 : 3;
1206 	if (rd[offset] > 0 && rd[offset] <= max_touch_data)
1207 		num_touch_data = rd[offset];
1208 	else
1209 		num_touch_data = 1;
1210 	offset += 1;
1211 
1212 	for (m = 0; m < num_touch_data; m++) {
1213 		/* Skip past timestamp */
1214 		offset += 1;
1215 
1216 		/*
1217 		 * The first 7 bits of the first byte is a counter and bit 8 is
1218 		 * a touch indicator that is 0 when pressed and 1 when not
1219 		 * pressed.
1220 		 * The next 3 bytes are two 12 bit touch coordinates, X and Y.
1221 		 * The data for the second touch is in the same format and
1222 		 * immediately follows the data for the first.
1223 		 */
1224 		for (n = 0; n < 2; n++) {
1225 			u16 x, y;
1226 			bool active;
1227 
1228 			x = rd[offset+1] | ((rd[offset+2] & 0xF) << 8);
1229 			y = ((rd[offset+2] & 0xF0) >> 4) | (rd[offset+3] << 4);
1230 
1231 			active = !(rd[offset] >> 7);
1232 			input_mt_slot(sc->touchpad, n);
1233 			input_mt_report_slot_state(sc->touchpad, MT_TOOL_FINGER, active);
1234 
1235 			if (active) {
1236 				input_report_abs(sc->touchpad, ABS_MT_POSITION_X, x);
1237 				input_report_abs(sc->touchpad, ABS_MT_POSITION_Y, y);
1238 			}
1239 
1240 			offset += 4;
1241 		}
1242 		input_mt_sync_frame(sc->touchpad);
1243 		input_sync(sc->touchpad);
1244 	}
1245 }
1246 
1247 static void nsg_mrxu_parse_report(struct sony_sc *sc, u8 *rd, int size)
1248 {
1249 	int n, offset, relx, rely;
1250 	u8 active;
1251 
1252 	/*
1253 	 * The NSG-MRxU multi-touch trackpad data starts at offset 1 and
1254 	 *   the touch-related data starts at offset 2.
1255 	 * For the first byte, bit 0 is set when touchpad button is pressed.
1256 	 * Bit 2 is set when a touch is active and the drag (Fn) key is pressed.
1257 	 * This drag key is mapped to BTN_LEFT.  It is operational only when a
1258 	 *   touch point is active.
1259 	 * Bit 4 is set when only the first touch point is active.
1260 	 * Bit 6 is set when only the second touch point is active.
1261 	 * Bits 5 and 7 are set when both touch points are active.
1262 	 * The next 3 bytes are two 12 bit X/Y coordinates for the first touch.
1263 	 * The following byte, offset 5, has the touch width and length.
1264 	 *   Bits 0-4=X (width), bits 5-7=Y (length).
1265 	 * A signed relative X coordinate is at offset 6.
1266 	 * The bytes at offset 7-9 are the second touch X/Y coordinates.
1267 	 * Offset 10 has the second touch width and length.
1268 	 * Offset 11 has the relative Y coordinate.
1269 	 */
1270 	offset = 1;
1271 
1272 	input_report_key(sc->touchpad, BTN_LEFT, rd[offset] & 0x0F);
1273 	active = (rd[offset] >> 4);
1274 	relx = (s8) rd[offset+5];
1275 	rely = ((s8) rd[offset+10]) * -1;
1276 
1277 	offset++;
1278 
1279 	for (n = 0; n < 2; n++) {
1280 		u16 x, y;
1281 		u8 contactx, contacty;
1282 
1283 		x = rd[offset] | ((rd[offset+1] & 0x0F) << 8);
1284 		y = ((rd[offset+1] & 0xF0) >> 4) | (rd[offset+2] << 4);
1285 
1286 		input_mt_slot(sc->touchpad, n);
1287 		input_mt_report_slot_state(sc->touchpad, MT_TOOL_FINGER, active & 0x03);
1288 
1289 		if (active & 0x03) {
1290 			contactx = rd[offset+3] & 0x0F;
1291 			contacty = rd[offset+3] >> 4;
1292 			input_report_abs(sc->touchpad, ABS_MT_TOUCH_MAJOR,
1293 				max(contactx, contacty));
1294 			input_report_abs(sc->touchpad, ABS_MT_TOUCH_MINOR,
1295 				min(contactx, contacty));
1296 			input_report_abs(sc->touchpad, ABS_MT_ORIENTATION,
1297 				(bool) (contactx > contacty));
1298 			input_report_abs(sc->touchpad, ABS_MT_POSITION_X, x);
1299 			input_report_abs(sc->touchpad, ABS_MT_POSITION_Y,
1300 				NSG_MRXU_MAX_Y - y);
1301 			/*
1302 			 * The relative coordinates belong to the first touch
1303 			 * point, when present, or to the second touch point
1304 			 * when the first is not active.
1305 			 */
1306 			if ((n == 0) || ((n == 1) && (active & 0x01))) {
1307 				input_report_rel(sc->touchpad, REL_X, relx);
1308 				input_report_rel(sc->touchpad, REL_Y, rely);
1309 			}
1310 		}
1311 
1312 		offset += 5;
1313 		active >>= 2;
1314 	}
1315 
1316 	input_mt_sync_frame(sc->touchpad);
1317 
1318 	input_sync(sc->touchpad);
1319 }
1320 
1321 static int sony_raw_event(struct hid_device *hdev, struct hid_report *report,
1322 		u8 *rd, int size)
1323 {
1324 	struct sony_sc *sc = hid_get_drvdata(hdev);
1325 
1326 	/*
1327 	 * Sixaxis HID report has acclerometers/gyro with MSByte first, this
1328 	 * has to be BYTE_SWAPPED before passing up to joystick interface
1329 	 */
1330 	if ((sc->quirks & SIXAXIS_CONTROLLER) && rd[0] == 0x01 && size == 49) {
1331 		/*
1332 		 * When connected via Bluetooth the Sixaxis occasionally sends
1333 		 * a report with the second byte 0xff and the rest zeroed.
1334 		 *
1335 		 * This report does not reflect the actual state of the
1336 		 * controller must be ignored to avoid generating false input
1337 		 * events.
1338 		 */
1339 		if (rd[1] == 0xff)
1340 			return -EINVAL;
1341 
1342 		swap(rd[41], rd[42]);
1343 		swap(rd[43], rd[44]);
1344 		swap(rd[45], rd[46]);
1345 		swap(rd[47], rd[48]);
1346 
1347 		sixaxis_parse_report(sc, rd, size);
1348 	} else if ((sc->quirks & MOTION_CONTROLLER_BT) && rd[0] == 0x01 && size == 49) {
1349 		sixaxis_parse_report(sc, rd, size);
1350 	} else if ((sc->quirks & NAVIGATION_CONTROLLER) && rd[0] == 0x01 &&
1351 			size == 49) {
1352 		sixaxis_parse_report(sc, rd, size);
1353 	} else if ((sc->quirks & DUALSHOCK4_CONTROLLER_USB) && rd[0] == 0x01 &&
1354 			size == 64) {
1355 		dualshock4_parse_report(sc, rd, size);
1356 	} else if (((sc->quirks & DUALSHOCK4_CONTROLLER_BT) && rd[0] == 0x11 &&
1357 			size == 78)) {
1358 		/* CRC check */
1359 		u8 bthdr = 0xA1;
1360 		u32 crc;
1361 		u32 report_crc;
1362 
1363 		crc = crc32_le(0xFFFFFFFF, &bthdr, 1);
1364 		crc = ~crc32_le(crc, rd, DS4_INPUT_REPORT_0x11_SIZE-4);
1365 		report_crc = get_unaligned_le32(&rd[DS4_INPUT_REPORT_0x11_SIZE-4]);
1366 		if (crc != report_crc) {
1367 			hid_dbg(sc->hdev, "DualShock 4 input report's CRC check failed, received crc 0x%0x != 0x%0x\n",
1368 				report_crc, crc);
1369 			return -EILSEQ;
1370 		}
1371 
1372 		dualshock4_parse_report(sc, rd, size);
1373 	} else if ((sc->quirks & DUALSHOCK4_DONGLE) && rd[0] == 0x01 &&
1374 			size == 64) {
1375 		unsigned long flags;
1376 		enum ds4_dongle_state dongle_state;
1377 
1378 		/*
1379 		 * In the case of a DS4 USB dongle, bit[2] of byte 31 indicates
1380 		 * if a DS4 is actually connected (indicated by '0').
1381 		 * For non-dongle, this bit is always 0 (connected).
1382 		 */
1383 		bool connected = (rd[31] & 0x04) ? false : true;
1384 
1385 		spin_lock_irqsave(&sc->lock, flags);
1386 		dongle_state = sc->ds4_dongle_state;
1387 		spin_unlock_irqrestore(&sc->lock, flags);
1388 
1389 		/*
1390 		 * The dongle always sends input reports even when no
1391 		 * DS4 is attached. When a DS4 is connected, we need to
1392 		 * obtain calibration data before we can use it.
1393 		 * The code below tracks dongle state and kicks of
1394 		 * calibration when needed and only allows us to process
1395 		 * input if a DS4 is actually connected.
1396 		 */
1397 		if (dongle_state == DONGLE_DISCONNECTED && connected) {
1398 			hid_info(sc->hdev, "DualShock 4 USB dongle: controller connected\n");
1399 			sony_set_leds(sc);
1400 
1401 			spin_lock_irqsave(&sc->lock, flags);
1402 			sc->ds4_dongle_state = DONGLE_CALIBRATING;
1403 			spin_unlock_irqrestore(&sc->lock, flags);
1404 
1405 			sony_schedule_work(sc, SONY_WORKER_HOTPLUG);
1406 
1407 			/* Don't process the report since we don't have
1408 			 * calibration data, but let hidraw have it anyway.
1409 			 */
1410 			return 0;
1411 		} else if ((dongle_state == DONGLE_CONNECTED ||
1412 			    dongle_state == DONGLE_DISABLED) && !connected) {
1413 			hid_info(sc->hdev, "DualShock 4 USB dongle: controller disconnected\n");
1414 
1415 			spin_lock_irqsave(&sc->lock, flags);
1416 			sc->ds4_dongle_state = DONGLE_DISCONNECTED;
1417 			spin_unlock_irqrestore(&sc->lock, flags);
1418 
1419 			/* Return 0, so hidraw can get the report. */
1420 			return 0;
1421 		} else if (dongle_state == DONGLE_CALIBRATING ||
1422 			   dongle_state == DONGLE_DISABLED ||
1423 			   dongle_state == DONGLE_DISCONNECTED) {
1424 			/* Return 0, so hidraw can get the report. */
1425 			return 0;
1426 		}
1427 
1428 		dualshock4_parse_report(sc, rd, size);
1429 
1430 	} else if ((sc->quirks & NSG_MRXU_REMOTE) && rd[0] == 0x02) {
1431 		nsg_mrxu_parse_report(sc, rd, size);
1432 		return 1;
1433 	}
1434 
1435 	if (sc->defer_initialization) {
1436 		sc->defer_initialization = 0;
1437 		sony_schedule_work(sc, SONY_WORKER_STATE);
1438 	}
1439 
1440 	return 0;
1441 }
1442 
1443 static int sony_mapping(struct hid_device *hdev, struct hid_input *hi,
1444 			struct hid_field *field, struct hid_usage *usage,
1445 			unsigned long **bit, int *max)
1446 {
1447 	struct sony_sc *sc = hid_get_drvdata(hdev);
1448 
1449 	if (sc->quirks & BUZZ_CONTROLLER) {
1450 		unsigned int key = usage->hid & HID_USAGE;
1451 
1452 		if ((usage->hid & HID_USAGE_PAGE) != HID_UP_BUTTON)
1453 			return -1;
1454 
1455 		switch (usage->collection_index) {
1456 		case 1:
1457 			if (key >= ARRAY_SIZE(buzz_keymap))
1458 				return -1;
1459 
1460 			key = buzz_keymap[key];
1461 			if (!key)
1462 				return -1;
1463 			break;
1464 		default:
1465 			return -1;
1466 		}
1467 
1468 		hid_map_usage_clear(hi, usage, bit, max, EV_KEY, key);
1469 		return 1;
1470 	}
1471 
1472 	if (sc->quirks & PS3REMOTE)
1473 		return ps3remote_mapping(hdev, hi, field, usage, bit, max);
1474 
1475 	if (sc->quirks & NAVIGATION_CONTROLLER)
1476 		return navigation_mapping(hdev, hi, field, usage, bit, max);
1477 
1478 	if (sc->quirks & SIXAXIS_CONTROLLER)
1479 		return sixaxis_mapping(hdev, hi, field, usage, bit, max);
1480 
1481 	if (sc->quirks & DUALSHOCK4_CONTROLLER)
1482 		return ds4_mapping(hdev, hi, field, usage, bit, max);
1483 
1484 	if (sc->quirks & GH_GUITAR_CONTROLLER)
1485 		return guitar_mapping(hdev, hi, field, usage, bit, max);
1486 
1487 	/* Let hid-core decide for the others */
1488 	return 0;
1489 }
1490 
1491 static int sony_register_touchpad(struct sony_sc *sc, int touch_count,
1492 		int w, int h, int touch_major, int touch_minor, int orientation)
1493 {
1494 	size_t name_sz;
1495 	char *name;
1496 	int ret;
1497 
1498 	sc->touchpad = devm_input_allocate_device(&sc->hdev->dev);
1499 	if (!sc->touchpad)
1500 		return -ENOMEM;
1501 
1502 	input_set_drvdata(sc->touchpad, sc);
1503 	sc->touchpad->dev.parent = &sc->hdev->dev;
1504 	sc->touchpad->phys = sc->hdev->phys;
1505 	sc->touchpad->uniq = sc->hdev->uniq;
1506 	sc->touchpad->id.bustype = sc->hdev->bus;
1507 	sc->touchpad->id.vendor = sc->hdev->vendor;
1508 	sc->touchpad->id.product = sc->hdev->product;
1509 	sc->touchpad->id.version = sc->hdev->version;
1510 
1511 	/* Append a suffix to the controller name as there are various
1512 	 * DS4 compatible non-Sony devices with different names.
1513 	 */
1514 	name_sz = strlen(sc->hdev->name) + sizeof(DS4_TOUCHPAD_SUFFIX);
1515 	name = devm_kzalloc(&sc->hdev->dev, name_sz, GFP_KERNEL);
1516 	if (!name)
1517 		return -ENOMEM;
1518 	snprintf(name, name_sz, "%s" DS4_TOUCHPAD_SUFFIX, sc->hdev->name);
1519 	sc->touchpad->name = name;
1520 
1521 	/* We map the button underneath the touchpad to BTN_LEFT. */
1522 	__set_bit(EV_KEY, sc->touchpad->evbit);
1523 	__set_bit(BTN_LEFT, sc->touchpad->keybit);
1524 	__set_bit(INPUT_PROP_BUTTONPAD, sc->touchpad->propbit);
1525 
1526 	input_set_abs_params(sc->touchpad, ABS_MT_POSITION_X, 0, w, 0, 0);
1527 	input_set_abs_params(sc->touchpad, ABS_MT_POSITION_Y, 0, h, 0, 0);
1528 
1529 	if (touch_major > 0) {
1530 		input_set_abs_params(sc->touchpad, ABS_MT_TOUCH_MAJOR,
1531 			0, touch_major, 0, 0);
1532 		if (touch_minor > 0)
1533 			input_set_abs_params(sc->touchpad, ABS_MT_TOUCH_MINOR,
1534 				0, touch_minor, 0, 0);
1535 		if (orientation > 0)
1536 			input_set_abs_params(sc->touchpad, ABS_MT_ORIENTATION,
1537 				0, orientation, 0, 0);
1538 	}
1539 
1540 	if (sc->quirks & NSG_MRXU_REMOTE) {
1541 		__set_bit(EV_REL, sc->touchpad->evbit);
1542 	}
1543 
1544 	ret = input_mt_init_slots(sc->touchpad, touch_count, INPUT_MT_POINTER);
1545 	if (ret < 0)
1546 		return ret;
1547 
1548 	ret = input_register_device(sc->touchpad);
1549 	if (ret < 0)
1550 		return ret;
1551 
1552 	return 0;
1553 }
1554 
1555 static int sony_register_sensors(struct sony_sc *sc)
1556 {
1557 	size_t name_sz;
1558 	char *name;
1559 	int ret;
1560 	int range;
1561 
1562 	sc->sensor_dev = devm_input_allocate_device(&sc->hdev->dev);
1563 	if (!sc->sensor_dev)
1564 		return -ENOMEM;
1565 
1566 	input_set_drvdata(sc->sensor_dev, sc);
1567 	sc->sensor_dev->dev.parent = &sc->hdev->dev;
1568 	sc->sensor_dev->phys = sc->hdev->phys;
1569 	sc->sensor_dev->uniq = sc->hdev->uniq;
1570 	sc->sensor_dev->id.bustype = sc->hdev->bus;
1571 	sc->sensor_dev->id.vendor = sc->hdev->vendor;
1572 	sc->sensor_dev->id.product = sc->hdev->product;
1573 	sc->sensor_dev->id.version = sc->hdev->version;
1574 
1575 	/* Append a suffix to the controller name as there are various
1576 	 * DS4 compatible non-Sony devices with different names.
1577 	 */
1578 	name_sz = strlen(sc->hdev->name) + sizeof(SENSOR_SUFFIX);
1579 	name = devm_kzalloc(&sc->hdev->dev, name_sz, GFP_KERNEL);
1580 	if (!name)
1581 		return -ENOMEM;
1582 	snprintf(name, name_sz, "%s" SENSOR_SUFFIX, sc->hdev->name);
1583 	sc->sensor_dev->name = name;
1584 
1585 	if (sc->quirks & SIXAXIS_CONTROLLER) {
1586 		/* For the DS3 we only support the accelerometer, which works
1587 		 * quite well even without calibration. The device also has
1588 		 * a 1-axis gyro, but it is very difficult to manage from within
1589 		 * the driver even to get data, the sensor is inaccurate and
1590 		 * the behavior is very different between hardware revisions.
1591 		 */
1592 		input_set_abs_params(sc->sensor_dev, ABS_X, -512, 511, 4, 0);
1593 		input_set_abs_params(sc->sensor_dev, ABS_Y, -512, 511, 4, 0);
1594 		input_set_abs_params(sc->sensor_dev, ABS_Z, -512, 511, 4, 0);
1595 		input_abs_set_res(sc->sensor_dev, ABS_X, SIXAXIS_ACC_RES_PER_G);
1596 		input_abs_set_res(sc->sensor_dev, ABS_Y, SIXAXIS_ACC_RES_PER_G);
1597 		input_abs_set_res(sc->sensor_dev, ABS_Z, SIXAXIS_ACC_RES_PER_G);
1598 	} else if (sc->quirks & DUALSHOCK4_CONTROLLER) {
1599 		range = DS4_ACC_RES_PER_G*4;
1600 		input_set_abs_params(sc->sensor_dev, ABS_X, -range, range, 16, 0);
1601 		input_set_abs_params(sc->sensor_dev, ABS_Y, -range, range, 16, 0);
1602 		input_set_abs_params(sc->sensor_dev, ABS_Z, -range, range, 16, 0);
1603 		input_abs_set_res(sc->sensor_dev, ABS_X, DS4_ACC_RES_PER_G);
1604 		input_abs_set_res(sc->sensor_dev, ABS_Y, DS4_ACC_RES_PER_G);
1605 		input_abs_set_res(sc->sensor_dev, ABS_Z, DS4_ACC_RES_PER_G);
1606 
1607 		range = DS4_GYRO_RES_PER_DEG_S*2048;
1608 		input_set_abs_params(sc->sensor_dev, ABS_RX, -range, range, 16, 0);
1609 		input_set_abs_params(sc->sensor_dev, ABS_RY, -range, range, 16, 0);
1610 		input_set_abs_params(sc->sensor_dev, ABS_RZ, -range, range, 16, 0);
1611 		input_abs_set_res(sc->sensor_dev, ABS_RX, DS4_GYRO_RES_PER_DEG_S);
1612 		input_abs_set_res(sc->sensor_dev, ABS_RY, DS4_GYRO_RES_PER_DEG_S);
1613 		input_abs_set_res(sc->sensor_dev, ABS_RZ, DS4_GYRO_RES_PER_DEG_S);
1614 
1615 		__set_bit(EV_MSC, sc->sensor_dev->evbit);
1616 		__set_bit(MSC_TIMESTAMP, sc->sensor_dev->mscbit);
1617 	}
1618 
1619 	__set_bit(INPUT_PROP_ACCELEROMETER, sc->sensor_dev->propbit);
1620 
1621 	ret = input_register_device(sc->sensor_dev);
1622 	if (ret < 0)
1623 		return ret;
1624 
1625 	return 0;
1626 }
1627 
1628 /*
1629  * Sending HID_REQ_GET_REPORT changes the operation mode of the ps3 controller
1630  * to "operational".  Without this, the ps3 controller will not report any
1631  * events.
1632  */
1633 static int sixaxis_set_operational_usb(struct hid_device *hdev)
1634 {
1635 	struct sony_sc *sc = hid_get_drvdata(hdev);
1636 	const int buf_size =
1637 		max(SIXAXIS_REPORT_0xF2_SIZE, SIXAXIS_REPORT_0xF5_SIZE);
1638 	u8 *buf;
1639 	int ret;
1640 
1641 	buf = kmalloc(buf_size, GFP_KERNEL);
1642 	if (!buf)
1643 		return -ENOMEM;
1644 
1645 	ret = hid_hw_raw_request(hdev, 0xf2, buf, SIXAXIS_REPORT_0xF2_SIZE,
1646 				 HID_FEATURE_REPORT, HID_REQ_GET_REPORT);
1647 	if (ret < 0) {
1648 		hid_err(hdev, "can't set operational mode: step 1\n");
1649 		goto out;
1650 	}
1651 
1652 	/*
1653 	 * Some compatible controllers like the Speedlink Strike FX and
1654 	 * Gasia need another query plus an USB interrupt to get operational.
1655 	 */
1656 	ret = hid_hw_raw_request(hdev, 0xf5, buf, SIXAXIS_REPORT_0xF5_SIZE,
1657 				 HID_FEATURE_REPORT, HID_REQ_GET_REPORT);
1658 	if (ret < 0) {
1659 		hid_err(hdev, "can't set operational mode: step 2\n");
1660 		goto out;
1661 	}
1662 
1663 	/*
1664 	 * But the USB interrupt would cause SHANWAN controllers to
1665 	 * start rumbling non-stop, so skip step 3 for these controllers.
1666 	 */
1667 	if (sc->quirks & SHANWAN_GAMEPAD)
1668 		goto out;
1669 
1670 	ret = hid_hw_output_report(hdev, buf, 1);
1671 	if (ret < 0) {
1672 		hid_info(hdev, "can't set operational mode: step 3, ignoring\n");
1673 		ret = 0;
1674 	}
1675 
1676 out:
1677 	kfree(buf);
1678 
1679 	return ret;
1680 }
1681 
1682 static int sixaxis_set_operational_bt(struct hid_device *hdev)
1683 {
1684 	static const u8 report[] = { 0xf4, 0x42, 0x03, 0x00, 0x00 };
1685 	u8 *buf;
1686 	int ret;
1687 
1688 	buf = kmemdup(report, sizeof(report), GFP_KERNEL);
1689 	if (!buf)
1690 		return -ENOMEM;
1691 
1692 	ret = hid_hw_raw_request(hdev, buf[0], buf, sizeof(report),
1693 				  HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
1694 
1695 	kfree(buf);
1696 
1697 	return ret;
1698 }
1699 
1700 /*
1701  * Request DS4 calibration data for the motion sensors.
1702  * For Bluetooth this also affects the operating mode (see below).
1703  */
1704 static int dualshock4_get_calibration_data(struct sony_sc *sc)
1705 {
1706 	u8 *buf;
1707 	int ret;
1708 	short gyro_pitch_bias, gyro_pitch_plus, gyro_pitch_minus;
1709 	short gyro_yaw_bias, gyro_yaw_plus, gyro_yaw_minus;
1710 	short gyro_roll_bias, gyro_roll_plus, gyro_roll_minus;
1711 	short gyro_speed_plus, gyro_speed_minus;
1712 	short acc_x_plus, acc_x_minus;
1713 	short acc_y_plus, acc_y_minus;
1714 	short acc_z_plus, acc_z_minus;
1715 	int speed_2x;
1716 	int range_2g;
1717 
1718 	/* For Bluetooth we use a different request, which supports CRC.
1719 	 * Note: in Bluetooth mode feature report 0x02 also changes the state
1720 	 * of the controller, so that it sends input reports of type 0x11.
1721 	 */
1722 	if (sc->quirks & (DUALSHOCK4_CONTROLLER_USB | DUALSHOCK4_DONGLE)) {
1723 		int retries;
1724 
1725 		buf = kmalloc(DS4_FEATURE_REPORT_0x02_SIZE, GFP_KERNEL);
1726 		if (!buf)
1727 			return -ENOMEM;
1728 
1729 		/* We should normally receive the feature report data we asked
1730 		 * for, but hidraw applications such as Steam can issue feature
1731 		 * reports as well. In particular for Dongle reconnects, Steam
1732 		 * and this function are competing resulting in often receiving
1733 		 * data for a different HID report, so retry a few times.
1734 		 */
1735 		for (retries = 0; retries < 3; retries++) {
1736 			ret = hid_hw_raw_request(sc->hdev, 0x02, buf,
1737 						 DS4_FEATURE_REPORT_0x02_SIZE,
1738 						 HID_FEATURE_REPORT,
1739 						 HID_REQ_GET_REPORT);
1740 			if (ret < 0)
1741 				goto err_stop;
1742 
1743 			if (buf[0] != 0x02) {
1744 				if (retries < 2) {
1745 					hid_warn(sc->hdev, "Retrying DualShock 4 get calibration report (0x02) request\n");
1746 					continue;
1747 				} else {
1748 					ret = -EILSEQ;
1749 					goto err_stop;
1750 				}
1751 			} else {
1752 				break;
1753 			}
1754 		}
1755 	} else {
1756 		u8 bthdr = 0xA3;
1757 		u32 crc;
1758 		u32 report_crc;
1759 		int retries;
1760 
1761 		buf = kmalloc(DS4_FEATURE_REPORT_0x05_SIZE, GFP_KERNEL);
1762 		if (!buf)
1763 			return -ENOMEM;
1764 
1765 		for (retries = 0; retries < 3; retries++) {
1766 			ret = hid_hw_raw_request(sc->hdev, 0x05, buf,
1767 						 DS4_FEATURE_REPORT_0x05_SIZE,
1768 						 HID_FEATURE_REPORT,
1769 						 HID_REQ_GET_REPORT);
1770 			if (ret < 0)
1771 				goto err_stop;
1772 
1773 			/* CRC check */
1774 			crc = crc32_le(0xFFFFFFFF, &bthdr, 1);
1775 			crc = ~crc32_le(crc, buf, DS4_FEATURE_REPORT_0x05_SIZE-4);
1776 			report_crc = get_unaligned_le32(&buf[DS4_FEATURE_REPORT_0x05_SIZE-4]);
1777 			if (crc != report_crc) {
1778 				hid_warn(sc->hdev, "DualShock 4 calibration report's CRC check failed, received crc 0x%0x != 0x%0x\n",
1779 					report_crc, crc);
1780 				if (retries < 2) {
1781 					hid_warn(sc->hdev, "Retrying DualShock 4 get calibration report request\n");
1782 					continue;
1783 				} else {
1784 					ret = -EILSEQ;
1785 					goto err_stop;
1786 				}
1787 			} else {
1788 				break;
1789 			}
1790 		}
1791 	}
1792 
1793 	gyro_pitch_bias  = get_unaligned_le16(&buf[1]);
1794 	gyro_yaw_bias    = get_unaligned_le16(&buf[3]);
1795 	gyro_roll_bias   = get_unaligned_le16(&buf[5]);
1796 	if (sc->quirks & DUALSHOCK4_CONTROLLER_USB) {
1797 		gyro_pitch_plus  = get_unaligned_le16(&buf[7]);
1798 		gyro_pitch_minus = get_unaligned_le16(&buf[9]);
1799 		gyro_yaw_plus    = get_unaligned_le16(&buf[11]);
1800 		gyro_yaw_minus   = get_unaligned_le16(&buf[13]);
1801 		gyro_roll_plus   = get_unaligned_le16(&buf[15]);
1802 		gyro_roll_minus  = get_unaligned_le16(&buf[17]);
1803 	} else {
1804 		/* BT + Dongle */
1805 		gyro_pitch_plus  = get_unaligned_le16(&buf[7]);
1806 		gyro_yaw_plus    = get_unaligned_le16(&buf[9]);
1807 		gyro_roll_plus   = get_unaligned_le16(&buf[11]);
1808 		gyro_pitch_minus = get_unaligned_le16(&buf[13]);
1809 		gyro_yaw_minus   = get_unaligned_le16(&buf[15]);
1810 		gyro_roll_minus  = get_unaligned_le16(&buf[17]);
1811 	}
1812 	gyro_speed_plus  = get_unaligned_le16(&buf[19]);
1813 	gyro_speed_minus = get_unaligned_le16(&buf[21]);
1814 	acc_x_plus       = get_unaligned_le16(&buf[23]);
1815 	acc_x_minus      = get_unaligned_le16(&buf[25]);
1816 	acc_y_plus       = get_unaligned_le16(&buf[27]);
1817 	acc_y_minus      = get_unaligned_le16(&buf[29]);
1818 	acc_z_plus       = get_unaligned_le16(&buf[31]);
1819 	acc_z_minus      = get_unaligned_le16(&buf[33]);
1820 
1821 	/* Set gyroscope calibration and normalization parameters.
1822 	 * Data values will be normalized to 1/DS4_GYRO_RES_PER_DEG_S degree/s.
1823 	 */
1824 	speed_2x = (gyro_speed_plus + gyro_speed_minus);
1825 	sc->ds4_calib_data[0].abs_code = ABS_RX;
1826 	sc->ds4_calib_data[0].bias = gyro_pitch_bias;
1827 	sc->ds4_calib_data[0].sens_numer = speed_2x*DS4_GYRO_RES_PER_DEG_S;
1828 	sc->ds4_calib_data[0].sens_denom = gyro_pitch_plus - gyro_pitch_minus;
1829 
1830 	sc->ds4_calib_data[1].abs_code = ABS_RY;
1831 	sc->ds4_calib_data[1].bias = gyro_yaw_bias;
1832 	sc->ds4_calib_data[1].sens_numer = speed_2x*DS4_GYRO_RES_PER_DEG_S;
1833 	sc->ds4_calib_data[1].sens_denom = gyro_yaw_plus - gyro_yaw_minus;
1834 
1835 	sc->ds4_calib_data[2].abs_code = ABS_RZ;
1836 	sc->ds4_calib_data[2].bias = gyro_roll_bias;
1837 	sc->ds4_calib_data[2].sens_numer = speed_2x*DS4_GYRO_RES_PER_DEG_S;
1838 	sc->ds4_calib_data[2].sens_denom = gyro_roll_plus - gyro_roll_minus;
1839 
1840 	/* Set accelerometer calibration and normalization parameters.
1841 	 * Data values will be normalized to 1/DS4_ACC_RES_PER_G G.
1842 	 */
1843 	range_2g = acc_x_plus - acc_x_minus;
1844 	sc->ds4_calib_data[3].abs_code = ABS_X;
1845 	sc->ds4_calib_data[3].bias = acc_x_plus - range_2g / 2;
1846 	sc->ds4_calib_data[3].sens_numer = 2*DS4_ACC_RES_PER_G;
1847 	sc->ds4_calib_data[3].sens_denom = range_2g;
1848 
1849 	range_2g = acc_y_plus - acc_y_minus;
1850 	sc->ds4_calib_data[4].abs_code = ABS_Y;
1851 	sc->ds4_calib_data[4].bias = acc_y_plus - range_2g / 2;
1852 	sc->ds4_calib_data[4].sens_numer = 2*DS4_ACC_RES_PER_G;
1853 	sc->ds4_calib_data[4].sens_denom = range_2g;
1854 
1855 	range_2g = acc_z_plus - acc_z_minus;
1856 	sc->ds4_calib_data[5].abs_code = ABS_Z;
1857 	sc->ds4_calib_data[5].bias = acc_z_plus - range_2g / 2;
1858 	sc->ds4_calib_data[5].sens_numer = 2*DS4_ACC_RES_PER_G;
1859 	sc->ds4_calib_data[5].sens_denom = range_2g;
1860 
1861 err_stop:
1862 	kfree(buf);
1863 	return ret;
1864 }
1865 
1866 static void dualshock4_calibration_work(struct work_struct *work)
1867 {
1868 	struct sony_sc *sc = container_of(work, struct sony_sc, hotplug_worker);
1869 	unsigned long flags;
1870 	enum ds4_dongle_state dongle_state;
1871 	int ret;
1872 
1873 	ret = dualshock4_get_calibration_data(sc);
1874 	if (ret < 0) {
1875 		/* This call is very unlikely to fail for the dongle. When it
1876 		 * fails we are probably in a very bad state, so mark the
1877 		 * dongle as disabled. We will re-enable the dongle if a new
1878 		 * DS4 hotplug is detect from sony_raw_event as any issues
1879 		 * are likely resolved then (the dongle is quite stupid).
1880 		 */
1881 		hid_err(sc->hdev, "DualShock 4 USB dongle: calibration failed, disabling device\n");
1882 		dongle_state = DONGLE_DISABLED;
1883 	} else {
1884 		hid_info(sc->hdev, "DualShock 4 USB dongle: calibration completed\n");
1885 		dongle_state = DONGLE_CONNECTED;
1886 	}
1887 
1888 	spin_lock_irqsave(&sc->lock, flags);
1889 	sc->ds4_dongle_state = dongle_state;
1890 	spin_unlock_irqrestore(&sc->lock, flags);
1891 }
1892 
1893 static int dualshock4_get_version_info(struct sony_sc *sc)
1894 {
1895 	u8 *buf;
1896 	int ret;
1897 
1898 	buf = kmalloc(DS4_FEATURE_REPORT_0xA3_SIZE, GFP_KERNEL);
1899 	if (!buf)
1900 		return -ENOMEM;
1901 
1902 	ret = hid_hw_raw_request(sc->hdev, 0xA3, buf,
1903 				 DS4_FEATURE_REPORT_0xA3_SIZE,
1904 				 HID_FEATURE_REPORT,
1905 				 HID_REQ_GET_REPORT);
1906 	if (ret < 0) {
1907 		kfree(buf);
1908 		return ret;
1909 	}
1910 
1911 	sc->hw_version = get_unaligned_le16(&buf[35]);
1912 	sc->fw_version = get_unaligned_le16(&buf[41]);
1913 
1914 	kfree(buf);
1915 	return 0;
1916 }
1917 
1918 static void sixaxis_set_leds_from_id(struct sony_sc *sc)
1919 {
1920 	static const u8 sixaxis_leds[10][4] = {
1921 				{ 0x01, 0x00, 0x00, 0x00 },
1922 				{ 0x00, 0x01, 0x00, 0x00 },
1923 				{ 0x00, 0x00, 0x01, 0x00 },
1924 				{ 0x00, 0x00, 0x00, 0x01 },
1925 				{ 0x01, 0x00, 0x00, 0x01 },
1926 				{ 0x00, 0x01, 0x00, 0x01 },
1927 				{ 0x00, 0x00, 0x01, 0x01 },
1928 				{ 0x01, 0x00, 0x01, 0x01 },
1929 				{ 0x00, 0x01, 0x01, 0x01 },
1930 				{ 0x01, 0x01, 0x01, 0x01 }
1931 	};
1932 
1933 	int id = sc->device_id;
1934 
1935 	BUILD_BUG_ON(MAX_LEDS < ARRAY_SIZE(sixaxis_leds[0]));
1936 
1937 	if (id < 0)
1938 		return;
1939 
1940 	id %= 10;
1941 	memcpy(sc->led_state, sixaxis_leds[id], sizeof(sixaxis_leds[id]));
1942 }
1943 
1944 static void dualshock4_set_leds_from_id(struct sony_sc *sc)
1945 {
1946 	/* The first 4 color/index entries match what the PS4 assigns */
1947 	static const u8 color_code[7][3] = {
1948 			/* Blue   */	{ 0x00, 0x00, 0x40 },
1949 			/* Red	  */	{ 0x40, 0x00, 0x00 },
1950 			/* Green  */	{ 0x00, 0x40, 0x00 },
1951 			/* Pink   */	{ 0x20, 0x00, 0x20 },
1952 			/* Orange */	{ 0x02, 0x01, 0x00 },
1953 			/* Teal   */	{ 0x00, 0x01, 0x01 },
1954 			/* White  */	{ 0x01, 0x01, 0x01 }
1955 	};
1956 
1957 	int id = sc->device_id;
1958 
1959 	BUILD_BUG_ON(MAX_LEDS < ARRAY_SIZE(color_code[0]));
1960 
1961 	if (id < 0)
1962 		return;
1963 
1964 	id %= 7;
1965 	memcpy(sc->led_state, color_code[id], sizeof(color_code[id]));
1966 }
1967 
1968 static void buzz_set_leds(struct sony_sc *sc)
1969 {
1970 	struct hid_device *hdev = sc->hdev;
1971 	struct list_head *report_list =
1972 		&hdev->report_enum[HID_OUTPUT_REPORT].report_list;
1973 	struct hid_report *report = list_entry(report_list->next,
1974 		struct hid_report, list);
1975 	s32 *value = report->field[0]->value;
1976 
1977 	BUILD_BUG_ON(MAX_LEDS < 4);
1978 
1979 	value[0] = 0x00;
1980 	value[1] = sc->led_state[0] ? 0xff : 0x00;
1981 	value[2] = sc->led_state[1] ? 0xff : 0x00;
1982 	value[3] = sc->led_state[2] ? 0xff : 0x00;
1983 	value[4] = sc->led_state[3] ? 0xff : 0x00;
1984 	value[5] = 0x00;
1985 	value[6] = 0x00;
1986 	hid_hw_request(hdev, report, HID_REQ_SET_REPORT);
1987 }
1988 
1989 static void sony_set_leds(struct sony_sc *sc)
1990 {
1991 	if (!(sc->quirks & BUZZ_CONTROLLER))
1992 		sony_schedule_work(sc, SONY_WORKER_STATE);
1993 	else
1994 		buzz_set_leds(sc);
1995 }
1996 
1997 static void sony_led_set_brightness(struct led_classdev *led,
1998 				    enum led_brightness value)
1999 {
2000 	struct device *dev = led->dev->parent;
2001 	struct hid_device *hdev = to_hid_device(dev);
2002 	struct sony_sc *drv_data;
2003 
2004 	int n;
2005 	int force_update;
2006 
2007 	drv_data = hid_get_drvdata(hdev);
2008 	if (!drv_data) {
2009 		hid_err(hdev, "No device data\n");
2010 		return;
2011 	}
2012 
2013 	/*
2014 	 * The Sixaxis on USB will override any LED settings sent to it
2015 	 * and keep flashing all of the LEDs until the PS button is pressed.
2016 	 * Updates, even if redundant, must be always be sent to the
2017 	 * controller to avoid having to toggle the state of an LED just to
2018 	 * stop the flashing later on.
2019 	 */
2020 	force_update = !!(drv_data->quirks & SIXAXIS_CONTROLLER_USB);
2021 
2022 	for (n = 0; n < drv_data->led_count; n++) {
2023 		if (led == drv_data->leds[n] && (force_update ||
2024 			(value != drv_data->led_state[n] ||
2025 			drv_data->led_delay_on[n] ||
2026 			drv_data->led_delay_off[n]))) {
2027 
2028 			drv_data->led_state[n] = value;
2029 
2030 			/* Setting the brightness stops the blinking */
2031 			drv_data->led_delay_on[n] = 0;
2032 			drv_data->led_delay_off[n] = 0;
2033 
2034 			sony_set_leds(drv_data);
2035 			break;
2036 		}
2037 	}
2038 }
2039 
2040 static enum led_brightness sony_led_get_brightness(struct led_classdev *led)
2041 {
2042 	struct device *dev = led->dev->parent;
2043 	struct hid_device *hdev = to_hid_device(dev);
2044 	struct sony_sc *drv_data;
2045 
2046 	int n;
2047 
2048 	drv_data = hid_get_drvdata(hdev);
2049 	if (!drv_data) {
2050 		hid_err(hdev, "No device data\n");
2051 		return LED_OFF;
2052 	}
2053 
2054 	for (n = 0; n < drv_data->led_count; n++) {
2055 		if (led == drv_data->leds[n])
2056 			return drv_data->led_state[n];
2057 	}
2058 
2059 	return LED_OFF;
2060 }
2061 
2062 static int sony_led_blink_set(struct led_classdev *led, unsigned long *delay_on,
2063 				unsigned long *delay_off)
2064 {
2065 	struct device *dev = led->dev->parent;
2066 	struct hid_device *hdev = to_hid_device(dev);
2067 	struct sony_sc *drv_data = hid_get_drvdata(hdev);
2068 	int n;
2069 	u8 new_on, new_off;
2070 
2071 	if (!drv_data) {
2072 		hid_err(hdev, "No device data\n");
2073 		return -EINVAL;
2074 	}
2075 
2076 	/* Max delay is 255 deciseconds or 2550 milliseconds */
2077 	if (*delay_on > 2550)
2078 		*delay_on = 2550;
2079 	if (*delay_off > 2550)
2080 		*delay_off = 2550;
2081 
2082 	/* Blink at 1 Hz if both values are zero */
2083 	if (!*delay_on && !*delay_off)
2084 		*delay_on = *delay_off = 500;
2085 
2086 	new_on = *delay_on / 10;
2087 	new_off = *delay_off / 10;
2088 
2089 	for (n = 0; n < drv_data->led_count; n++) {
2090 		if (led == drv_data->leds[n])
2091 			break;
2092 	}
2093 
2094 	/* This LED is not registered on this device */
2095 	if (n >= drv_data->led_count)
2096 		return -EINVAL;
2097 
2098 	/* Don't schedule work if the values didn't change */
2099 	if (new_on != drv_data->led_delay_on[n] ||
2100 		new_off != drv_data->led_delay_off[n]) {
2101 		drv_data->led_delay_on[n] = new_on;
2102 		drv_data->led_delay_off[n] = new_off;
2103 		sony_schedule_work(drv_data, SONY_WORKER_STATE);
2104 	}
2105 
2106 	return 0;
2107 }
2108 
2109 static int sony_leds_init(struct sony_sc *sc)
2110 {
2111 	struct hid_device *hdev = sc->hdev;
2112 	int n, ret = 0;
2113 	int use_ds4_names;
2114 	struct led_classdev *led;
2115 	size_t name_sz;
2116 	char *name;
2117 	size_t name_len;
2118 	const char *name_fmt;
2119 	static const char * const ds4_name_str[] = { "red", "green", "blue",
2120 						  "global" };
2121 	u8 max_brightness[MAX_LEDS] = { [0 ... (MAX_LEDS - 1)] = 1 };
2122 	u8 use_hw_blink[MAX_LEDS] = { 0 };
2123 
2124 	BUG_ON(!(sc->quirks & SONY_LED_SUPPORT));
2125 
2126 	if (sc->quirks & BUZZ_CONTROLLER) {
2127 		sc->led_count = 4;
2128 		use_ds4_names = 0;
2129 		name_len = strlen("::buzz#");
2130 		name_fmt = "%s::buzz%d";
2131 		/* Validate expected report characteristics. */
2132 		if (!hid_validate_values(hdev, HID_OUTPUT_REPORT, 0, 0, 7))
2133 			return -ENODEV;
2134 	} else if (sc->quirks & DUALSHOCK4_CONTROLLER) {
2135 		dualshock4_set_leds_from_id(sc);
2136 		sc->led_state[3] = 1;
2137 		sc->led_count = 4;
2138 		memset(max_brightness, 255, 3);
2139 		use_hw_blink[3] = 1;
2140 		use_ds4_names = 1;
2141 		name_len = 0;
2142 		name_fmt = "%s:%s";
2143 	} else if (sc->quirks & MOTION_CONTROLLER) {
2144 		sc->led_count = 3;
2145 		memset(max_brightness, 255, 3);
2146 		use_ds4_names = 1;
2147 		name_len = 0;
2148 		name_fmt = "%s:%s";
2149 	} else if (sc->quirks & NAVIGATION_CONTROLLER) {
2150 		static const u8 navigation_leds[4] = {0x01, 0x00, 0x00, 0x00};
2151 
2152 		memcpy(sc->led_state, navigation_leds, sizeof(navigation_leds));
2153 		sc->led_count = 1;
2154 		memset(use_hw_blink, 1, 4);
2155 		use_ds4_names = 0;
2156 		name_len = strlen("::sony#");
2157 		name_fmt = "%s::sony%d";
2158 	} else {
2159 		sixaxis_set_leds_from_id(sc);
2160 		sc->led_count = 4;
2161 		memset(use_hw_blink, 1, 4);
2162 		use_ds4_names = 0;
2163 		name_len = strlen("::sony#");
2164 		name_fmt = "%s::sony%d";
2165 	}
2166 
2167 	/*
2168 	 * Clear LEDs as we have no way of reading their initial state. This is
2169 	 * only relevant if the driver is loaded after somebody actively set the
2170 	 * LEDs to on
2171 	 */
2172 	sony_set_leds(sc);
2173 
2174 	name_sz = strlen(dev_name(&hdev->dev)) + name_len + 1;
2175 
2176 	for (n = 0; n < sc->led_count; n++) {
2177 
2178 		if (use_ds4_names)
2179 			name_sz = strlen(dev_name(&hdev->dev)) + strlen(ds4_name_str[n]) + 2;
2180 
2181 		led = devm_kzalloc(&hdev->dev, sizeof(struct led_classdev) + name_sz, GFP_KERNEL);
2182 		if (!led) {
2183 			hid_err(hdev, "Couldn't allocate memory for LED %d\n", n);
2184 			return -ENOMEM;
2185 		}
2186 
2187 		name = (void *)(&led[1]);
2188 		if (use_ds4_names)
2189 			snprintf(name, name_sz, name_fmt, dev_name(&hdev->dev),
2190 			ds4_name_str[n]);
2191 		else
2192 			snprintf(name, name_sz, name_fmt, dev_name(&hdev->dev), n + 1);
2193 		led->name = name;
2194 		led->brightness = sc->led_state[n];
2195 		led->max_brightness = max_brightness[n];
2196 		led->flags = LED_CORE_SUSPENDRESUME;
2197 		led->brightness_get = sony_led_get_brightness;
2198 		led->brightness_set = sony_led_set_brightness;
2199 
2200 		if (use_hw_blink[n])
2201 			led->blink_set = sony_led_blink_set;
2202 
2203 		sc->leds[n] = led;
2204 
2205 		ret = devm_led_classdev_register(&hdev->dev, led);
2206 		if (ret) {
2207 			hid_err(hdev, "Failed to register LED %d\n", n);
2208 			return ret;
2209 		}
2210 	}
2211 
2212 	return 0;
2213 }
2214 
2215 static void sixaxis_send_output_report(struct sony_sc *sc)
2216 {
2217 	static const union sixaxis_output_report_01 default_report = {
2218 		.buf = {
2219 			0x01,
2220 			0x01, 0xff, 0x00, 0xff, 0x00,
2221 			0x00, 0x00, 0x00, 0x00, 0x00,
2222 			0xff, 0x27, 0x10, 0x00, 0x32,
2223 			0xff, 0x27, 0x10, 0x00, 0x32,
2224 			0xff, 0x27, 0x10, 0x00, 0x32,
2225 			0xff, 0x27, 0x10, 0x00, 0x32,
2226 			0x00, 0x00, 0x00, 0x00, 0x00
2227 		}
2228 	};
2229 	struct sixaxis_output_report *report =
2230 		(struct sixaxis_output_report *)sc->output_report_dmabuf;
2231 	int n;
2232 
2233 	/* Initialize the report with default values */
2234 	memcpy(report, &default_report, sizeof(struct sixaxis_output_report));
2235 
2236 #ifdef CONFIG_SONY_FF
2237 	report->rumble.right_motor_on = sc->right ? 1 : 0;
2238 	report->rumble.left_motor_force = sc->left;
2239 #endif
2240 
2241 	report->leds_bitmap |= sc->led_state[0] << 1;
2242 	report->leds_bitmap |= sc->led_state[1] << 2;
2243 	report->leds_bitmap |= sc->led_state[2] << 3;
2244 	report->leds_bitmap |= sc->led_state[3] << 4;
2245 
2246 	/* Set flag for all leds off, required for 3rd party INTEC controller */
2247 	if ((report->leds_bitmap & 0x1E) == 0)
2248 		report->leds_bitmap |= 0x20;
2249 
2250 	/*
2251 	 * The LEDs in the report are indexed in reverse order to their
2252 	 * corresponding light on the controller.
2253 	 * Index 0 = LED 4, index 1 = LED 3, etc...
2254 	 *
2255 	 * In the case of both delay values being zero (blinking disabled) the
2256 	 * default report values should be used or the controller LED will be
2257 	 * always off.
2258 	 */
2259 	for (n = 0; n < 4; n++) {
2260 		if (sc->led_delay_on[n] || sc->led_delay_off[n]) {
2261 			report->led[3 - n].duty_off = sc->led_delay_off[n];
2262 			report->led[3 - n].duty_on = sc->led_delay_on[n];
2263 		}
2264 	}
2265 
2266 	/* SHANWAN controllers require output reports via intr channel */
2267 	if (sc->quirks & SHANWAN_GAMEPAD)
2268 		hid_hw_output_report(sc->hdev, (u8 *)report,
2269 				sizeof(struct sixaxis_output_report));
2270 	else
2271 		hid_hw_raw_request(sc->hdev, report->report_id, (u8 *)report,
2272 				sizeof(struct sixaxis_output_report),
2273 				HID_OUTPUT_REPORT, HID_REQ_SET_REPORT);
2274 }
2275 
2276 static void dualshock4_send_output_report(struct sony_sc *sc)
2277 {
2278 	struct hid_device *hdev = sc->hdev;
2279 	u8 *buf = sc->output_report_dmabuf;
2280 	int offset;
2281 
2282 	/*
2283 	 * NOTE: The lower 6 bits of buf[1] field of the Bluetooth report
2284 	 * control the interval at which Dualshock 4 reports data:
2285 	 * 0x00 - 1ms
2286 	 * 0x01 - 1ms
2287 	 * 0x02 - 2ms
2288 	 * 0x3E - 62ms
2289 	 * 0x3F - disabled
2290 	 */
2291 	if (sc->quirks & (DUALSHOCK4_CONTROLLER_USB | DUALSHOCK4_DONGLE)) {
2292 		memset(buf, 0, DS4_OUTPUT_REPORT_0x05_SIZE);
2293 		buf[0] = 0x05;
2294 		buf[1] = 0x07; /* blink + LEDs + motor */
2295 		offset = 4;
2296 	} else {
2297 		memset(buf, 0, DS4_OUTPUT_REPORT_0x11_SIZE);
2298 		buf[0] = 0x11;
2299 		buf[1] = 0xC0 /* HID + CRC */ | sc->ds4_bt_poll_interval;
2300 		buf[3] = 0x07; /* blink + LEDs + motor */
2301 		offset = 6;
2302 	}
2303 
2304 #ifdef CONFIG_SONY_FF
2305 	buf[offset++] = sc->right;
2306 	buf[offset++] = sc->left;
2307 #else
2308 	offset += 2;
2309 #endif
2310 
2311 	/* LED 3 is the global control */
2312 	if (sc->led_state[3]) {
2313 		buf[offset++] = sc->led_state[0];
2314 		buf[offset++] = sc->led_state[1];
2315 		buf[offset++] = sc->led_state[2];
2316 	} else {
2317 		offset += 3;
2318 	}
2319 
2320 	/* If both delay values are zero the DualShock 4 disables blinking. */
2321 	buf[offset++] = sc->led_delay_on[3];
2322 	buf[offset++] = sc->led_delay_off[3];
2323 
2324 	if (sc->quirks & (DUALSHOCK4_CONTROLLER_USB | DUALSHOCK4_DONGLE))
2325 		hid_hw_output_report(hdev, buf, DS4_OUTPUT_REPORT_0x05_SIZE);
2326 	else {
2327 		/* CRC generation */
2328 		u8 bthdr = 0xA2;
2329 		u32 crc;
2330 
2331 		crc = crc32_le(0xFFFFFFFF, &bthdr, 1);
2332 		crc = ~crc32_le(crc, buf, DS4_OUTPUT_REPORT_0x11_SIZE-4);
2333 		put_unaligned_le32(crc, &buf[74]);
2334 		hid_hw_output_report(hdev, buf, DS4_OUTPUT_REPORT_0x11_SIZE);
2335 	}
2336 }
2337 
2338 static void motion_send_output_report(struct sony_sc *sc)
2339 {
2340 	struct hid_device *hdev = sc->hdev;
2341 	struct motion_output_report_02 *report =
2342 		(struct motion_output_report_02 *)sc->output_report_dmabuf;
2343 
2344 	memset(report, 0, MOTION_REPORT_0x02_SIZE);
2345 
2346 	report->type = 0x02; /* set leds */
2347 	report->r = sc->led_state[0];
2348 	report->g = sc->led_state[1];
2349 	report->b = sc->led_state[2];
2350 
2351 #ifdef CONFIG_SONY_FF
2352 	report->rumble = max(sc->right, sc->left);
2353 #endif
2354 
2355 	hid_hw_output_report(hdev, (u8 *)report, MOTION_REPORT_0x02_SIZE);
2356 }
2357 
2358 static inline void sony_send_output_report(struct sony_sc *sc)
2359 {
2360 	if (sc->send_output_report)
2361 		sc->send_output_report(sc);
2362 }
2363 
2364 static void sony_state_worker(struct work_struct *work)
2365 {
2366 	struct sony_sc *sc = container_of(work, struct sony_sc, state_worker);
2367 
2368 	sc->send_output_report(sc);
2369 }
2370 
2371 static int sony_allocate_output_report(struct sony_sc *sc)
2372 {
2373 	if ((sc->quirks & SIXAXIS_CONTROLLER) ||
2374 			(sc->quirks & NAVIGATION_CONTROLLER))
2375 		sc->output_report_dmabuf =
2376 			devm_kmalloc(&sc->hdev->dev,
2377 				sizeof(union sixaxis_output_report_01),
2378 				GFP_KERNEL);
2379 	else if (sc->quirks & DUALSHOCK4_CONTROLLER_BT)
2380 		sc->output_report_dmabuf = devm_kmalloc(&sc->hdev->dev,
2381 						DS4_OUTPUT_REPORT_0x11_SIZE,
2382 						GFP_KERNEL);
2383 	else if (sc->quirks & (DUALSHOCK4_CONTROLLER_USB | DUALSHOCK4_DONGLE))
2384 		sc->output_report_dmabuf = devm_kmalloc(&sc->hdev->dev,
2385 						DS4_OUTPUT_REPORT_0x05_SIZE,
2386 						GFP_KERNEL);
2387 	else if (sc->quirks & MOTION_CONTROLLER)
2388 		sc->output_report_dmabuf = devm_kmalloc(&sc->hdev->dev,
2389 						MOTION_REPORT_0x02_SIZE,
2390 						GFP_KERNEL);
2391 	else
2392 		return 0;
2393 
2394 	if (!sc->output_report_dmabuf)
2395 		return -ENOMEM;
2396 
2397 	return 0;
2398 }
2399 
2400 #ifdef CONFIG_SONY_FF
2401 static int sony_play_effect(struct input_dev *dev, void *data,
2402 			    struct ff_effect *effect)
2403 {
2404 	struct hid_device *hid = input_get_drvdata(dev);
2405 	struct sony_sc *sc = hid_get_drvdata(hid);
2406 
2407 	if (effect->type != FF_RUMBLE)
2408 		return 0;
2409 
2410 	sc->left = effect->u.rumble.strong_magnitude / 256;
2411 	sc->right = effect->u.rumble.weak_magnitude / 256;
2412 
2413 	sony_schedule_work(sc, SONY_WORKER_STATE);
2414 	return 0;
2415 }
2416 
2417 static int sony_init_ff(struct sony_sc *sc)
2418 {
2419 	struct hid_input *hidinput;
2420 	struct input_dev *input_dev;
2421 
2422 	if (list_empty(&sc->hdev->inputs)) {
2423 		hid_err(sc->hdev, "no inputs found\n");
2424 		return -ENODEV;
2425 	}
2426 	hidinput = list_entry(sc->hdev->inputs.next, struct hid_input, list);
2427 	input_dev = hidinput->input;
2428 
2429 	input_set_capability(input_dev, EV_FF, FF_RUMBLE);
2430 	return input_ff_create_memless(input_dev, NULL, sony_play_effect);
2431 }
2432 
2433 #else
2434 static int sony_init_ff(struct sony_sc *sc)
2435 {
2436 	return 0;
2437 }
2438 
2439 #endif
2440 
2441 static int sony_battery_get_property(struct power_supply *psy,
2442 				     enum power_supply_property psp,
2443 				     union power_supply_propval *val)
2444 {
2445 	struct sony_sc *sc = power_supply_get_drvdata(psy);
2446 	unsigned long flags;
2447 	int ret = 0;
2448 	u8 battery_capacity;
2449 	int battery_status;
2450 
2451 	spin_lock_irqsave(&sc->lock, flags);
2452 	battery_capacity = sc->battery_capacity;
2453 	battery_status = sc->battery_status;
2454 	spin_unlock_irqrestore(&sc->lock, flags);
2455 
2456 	switch (psp) {
2457 	case POWER_SUPPLY_PROP_PRESENT:
2458 		val->intval = 1;
2459 		break;
2460 	case POWER_SUPPLY_PROP_SCOPE:
2461 		val->intval = POWER_SUPPLY_SCOPE_DEVICE;
2462 		break;
2463 	case POWER_SUPPLY_PROP_CAPACITY:
2464 		val->intval = battery_capacity;
2465 		break;
2466 	case POWER_SUPPLY_PROP_STATUS:
2467 		val->intval = battery_status;
2468 		break;
2469 	default:
2470 		ret = -EINVAL;
2471 		break;
2472 	}
2473 	return ret;
2474 }
2475 
2476 static int sony_battery_probe(struct sony_sc *sc, int append_dev_id)
2477 {
2478 	const char *battery_str_fmt = append_dev_id ?
2479 		"sony_controller_battery_%pMR_%i" :
2480 		"sony_controller_battery_%pMR";
2481 	struct power_supply_config psy_cfg = { .drv_data = sc, };
2482 	struct hid_device *hdev = sc->hdev;
2483 	int ret;
2484 
2485 	/*
2486 	 * Set the default battery level to 100% to avoid low battery warnings
2487 	 * if the battery is polled before the first device report is received.
2488 	 */
2489 	sc->battery_capacity = 100;
2490 
2491 	sc->battery_desc.properties = sony_battery_props;
2492 	sc->battery_desc.num_properties = ARRAY_SIZE(sony_battery_props);
2493 	sc->battery_desc.get_property = sony_battery_get_property;
2494 	sc->battery_desc.type = POWER_SUPPLY_TYPE_BATTERY;
2495 	sc->battery_desc.use_for_apm = 0;
2496 	sc->battery_desc.name = devm_kasprintf(&hdev->dev, GFP_KERNEL,
2497 					  battery_str_fmt, sc->mac_address, sc->device_id);
2498 	if (!sc->battery_desc.name)
2499 		return -ENOMEM;
2500 
2501 	sc->battery = devm_power_supply_register(&hdev->dev, &sc->battery_desc,
2502 					    &psy_cfg);
2503 	if (IS_ERR(sc->battery)) {
2504 		ret = PTR_ERR(sc->battery);
2505 		hid_err(hdev, "Unable to register battery device\n");
2506 		return ret;
2507 	}
2508 
2509 	power_supply_powers(sc->battery, &hdev->dev);
2510 	return 0;
2511 }
2512 
2513 /*
2514  * If a controller is plugged in via USB while already connected via Bluetooth
2515  * it will show up as two devices. A global list of connected controllers and
2516  * their MAC addresses is maintained to ensure that a device is only connected
2517  * once.
2518  *
2519  * Some USB-only devices masquerade as Sixaxis controllers and all have the
2520  * same dummy Bluetooth address, so a comparison of the connection type is
2521  * required.  Devices are only rejected in the case where two devices have
2522  * matching Bluetooth addresses on different bus types.
2523  */
2524 static inline int sony_compare_connection_type(struct sony_sc *sc0,
2525 						struct sony_sc *sc1)
2526 {
2527 	const int sc0_not_bt = !(sc0->quirks & SONY_BT_DEVICE);
2528 	const int sc1_not_bt = !(sc1->quirks & SONY_BT_DEVICE);
2529 
2530 	return sc0_not_bt == sc1_not_bt;
2531 }
2532 
2533 static int sony_check_add_dev_list(struct sony_sc *sc)
2534 {
2535 	struct sony_sc *entry;
2536 	unsigned long flags;
2537 	int ret;
2538 
2539 	spin_lock_irqsave(&sony_dev_list_lock, flags);
2540 
2541 	list_for_each_entry(entry, &sony_device_list, list_node) {
2542 		ret = memcmp(sc->mac_address, entry->mac_address,
2543 				sizeof(sc->mac_address));
2544 		if (!ret) {
2545 			if (sony_compare_connection_type(sc, entry)) {
2546 				ret = 1;
2547 			} else {
2548 				ret = -EEXIST;
2549 				hid_info(sc->hdev,
2550 				"controller with MAC address %pMR already connected\n",
2551 				sc->mac_address);
2552 			}
2553 			goto unlock;
2554 		}
2555 	}
2556 
2557 	ret = 0;
2558 	list_add(&(sc->list_node), &sony_device_list);
2559 
2560 unlock:
2561 	spin_unlock_irqrestore(&sony_dev_list_lock, flags);
2562 	return ret;
2563 }
2564 
2565 static void sony_remove_dev_list(struct sony_sc *sc)
2566 {
2567 	unsigned long flags;
2568 
2569 	if (sc->list_node.next) {
2570 		spin_lock_irqsave(&sony_dev_list_lock, flags);
2571 		list_del(&(sc->list_node));
2572 		spin_unlock_irqrestore(&sony_dev_list_lock, flags);
2573 	}
2574 }
2575 
2576 static int sony_get_bt_devaddr(struct sony_sc *sc)
2577 {
2578 	int ret;
2579 
2580 	/* HIDP stores the device MAC address as a string in the uniq field. */
2581 	ret = strlen(sc->hdev->uniq);
2582 	if (ret != 17)
2583 		return -EINVAL;
2584 
2585 	ret = sscanf(sc->hdev->uniq,
2586 		"%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx",
2587 		&sc->mac_address[5], &sc->mac_address[4], &sc->mac_address[3],
2588 		&sc->mac_address[2], &sc->mac_address[1], &sc->mac_address[0]);
2589 
2590 	if (ret != 6)
2591 		return -EINVAL;
2592 
2593 	return 0;
2594 }
2595 
2596 static int sony_check_add(struct sony_sc *sc)
2597 {
2598 	u8 *buf = NULL;
2599 	int n, ret;
2600 
2601 	if ((sc->quirks & DUALSHOCK4_CONTROLLER_BT) ||
2602 	    (sc->quirks & MOTION_CONTROLLER_BT) ||
2603 	    (sc->quirks & NAVIGATION_CONTROLLER_BT) ||
2604 	    (sc->quirks & SIXAXIS_CONTROLLER_BT)) {
2605 		/*
2606 		 * sony_get_bt_devaddr() attempts to parse the Bluetooth MAC
2607 		 * address from the uniq string where HIDP stores it.
2608 		 * As uniq cannot be guaranteed to be a MAC address in all cases
2609 		 * a failure of this function should not prevent the connection.
2610 		 */
2611 		if (sony_get_bt_devaddr(sc) < 0) {
2612 			hid_warn(sc->hdev, "UNIQ does not contain a MAC address; duplicate check skipped\n");
2613 			return 0;
2614 		}
2615 	} else if (sc->quirks & (DUALSHOCK4_CONTROLLER_USB | DUALSHOCK4_DONGLE)) {
2616 		buf = kmalloc(DS4_FEATURE_REPORT_0x81_SIZE, GFP_KERNEL);
2617 		if (!buf)
2618 			return -ENOMEM;
2619 
2620 		/*
2621 		 * The MAC address of a DS4 controller connected via USB can be
2622 		 * retrieved with feature report 0x81. The address begins at
2623 		 * offset 1.
2624 		 */
2625 		ret = hid_hw_raw_request(sc->hdev, 0x81, buf,
2626 				DS4_FEATURE_REPORT_0x81_SIZE, HID_FEATURE_REPORT,
2627 				HID_REQ_GET_REPORT);
2628 
2629 		if (ret != DS4_FEATURE_REPORT_0x81_SIZE) {
2630 			hid_err(sc->hdev, "failed to retrieve feature report 0x81 with the DualShock 4 MAC address\n");
2631 			ret = ret < 0 ? ret : -EINVAL;
2632 			goto out_free;
2633 		}
2634 
2635 		memcpy(sc->mac_address, &buf[1], sizeof(sc->mac_address));
2636 
2637 		snprintf(sc->hdev->uniq, sizeof(sc->hdev->uniq),
2638 			 "%pMR", sc->mac_address);
2639 	} else if ((sc->quirks & SIXAXIS_CONTROLLER_USB) ||
2640 			(sc->quirks & NAVIGATION_CONTROLLER_USB)) {
2641 		buf = kmalloc(SIXAXIS_REPORT_0xF2_SIZE, GFP_KERNEL);
2642 		if (!buf)
2643 			return -ENOMEM;
2644 
2645 		/*
2646 		 * The MAC address of a Sixaxis controller connected via USB can
2647 		 * be retrieved with feature report 0xf2. The address begins at
2648 		 * offset 4.
2649 		 */
2650 		ret = hid_hw_raw_request(sc->hdev, 0xf2, buf,
2651 				SIXAXIS_REPORT_0xF2_SIZE, HID_FEATURE_REPORT,
2652 				HID_REQ_GET_REPORT);
2653 
2654 		if (ret != SIXAXIS_REPORT_0xF2_SIZE) {
2655 			hid_err(sc->hdev, "failed to retrieve feature report 0xf2 with the Sixaxis MAC address\n");
2656 			ret = ret < 0 ? ret : -EINVAL;
2657 			goto out_free;
2658 		}
2659 
2660 		/*
2661 		 * The Sixaxis device MAC in the report is big-endian and must
2662 		 * be byte-swapped.
2663 		 */
2664 		for (n = 0; n < 6; n++)
2665 			sc->mac_address[5-n] = buf[4+n];
2666 
2667 		snprintf(sc->hdev->uniq, sizeof(sc->hdev->uniq),
2668 			 "%pMR", sc->mac_address);
2669 	} else {
2670 		return 0;
2671 	}
2672 
2673 	ret = sony_check_add_dev_list(sc);
2674 
2675 out_free:
2676 
2677 	kfree(buf);
2678 
2679 	return ret;
2680 }
2681 
2682 static int sony_set_device_id(struct sony_sc *sc)
2683 {
2684 	int ret;
2685 
2686 	/*
2687 	 * Only DualShock 4 or Sixaxis controllers get an id.
2688 	 * All others are set to -1.
2689 	 */
2690 	if ((sc->quirks & SIXAXIS_CONTROLLER) ||
2691 	    (sc->quirks & DUALSHOCK4_CONTROLLER)) {
2692 		ret = ida_simple_get(&sony_device_id_allocator, 0, 0,
2693 					GFP_KERNEL);
2694 		if (ret < 0) {
2695 			sc->device_id = -1;
2696 			return ret;
2697 		}
2698 		sc->device_id = ret;
2699 	} else {
2700 		sc->device_id = -1;
2701 	}
2702 
2703 	return 0;
2704 }
2705 
2706 static void sony_release_device_id(struct sony_sc *sc)
2707 {
2708 	if (sc->device_id >= 0) {
2709 		ida_simple_remove(&sony_device_id_allocator, sc->device_id);
2710 		sc->device_id = -1;
2711 	}
2712 }
2713 
2714 static inline void sony_init_output_report(struct sony_sc *sc,
2715 				void (*send_output_report)(struct sony_sc *))
2716 {
2717 	sc->send_output_report = send_output_report;
2718 
2719 	if (!sc->state_worker_initialized)
2720 		INIT_WORK(&sc->state_worker, sony_state_worker);
2721 
2722 	sc->state_worker_initialized = 1;
2723 }
2724 
2725 static inline void sony_cancel_work_sync(struct sony_sc *sc)
2726 {
2727 	unsigned long flags;
2728 
2729 	if (sc->hotplug_worker_initialized)
2730 		cancel_work_sync(&sc->hotplug_worker);
2731 	if (sc->state_worker_initialized) {
2732 		spin_lock_irqsave(&sc->lock, flags);
2733 		sc->state_worker_initialized = 0;
2734 		spin_unlock_irqrestore(&sc->lock, flags);
2735 		cancel_work_sync(&sc->state_worker);
2736 	}
2737 }
2738 
2739 static int sony_input_configured(struct hid_device *hdev,
2740 					struct hid_input *hidinput)
2741 {
2742 	struct sony_sc *sc = hid_get_drvdata(hdev);
2743 	int append_dev_id;
2744 	int ret;
2745 
2746 	ret = sony_set_device_id(sc);
2747 	if (ret < 0) {
2748 		hid_err(hdev, "failed to allocate the device id\n");
2749 		goto err_stop;
2750 	}
2751 
2752 	ret = append_dev_id = sony_check_add(sc);
2753 	if (ret < 0)
2754 		goto err_stop;
2755 
2756 	ret = sony_allocate_output_report(sc);
2757 	if (ret < 0) {
2758 		hid_err(hdev, "failed to allocate the output report buffer\n");
2759 		goto err_stop;
2760 	}
2761 
2762 	if (sc->quirks & NAVIGATION_CONTROLLER_USB) {
2763 		/*
2764 		 * The Sony Sixaxis does not handle HID Output Reports on the
2765 		 * Interrupt EP like it could, so we need to force HID Output
2766 		 * Reports to use HID_REQ_SET_REPORT on the Control EP.
2767 		 *
2768 		 * There is also another issue about HID Output Reports via USB,
2769 		 * the Sixaxis does not want the report_id as part of the data
2770 		 * packet, so we have to discard buf[0] when sending the actual
2771 		 * control message, even for numbered reports, humpf!
2772 		 *
2773 		 * Additionally, the Sixaxis on USB isn't properly initialized
2774 		 * until the PS logo button is pressed and as such won't retain
2775 		 * any state set by an output report, so the initial
2776 		 * configuration report is deferred until the first input
2777 		 * report arrives.
2778 		 */
2779 		hdev->quirks |= HID_QUIRK_NO_OUTPUT_REPORTS_ON_INTR_EP;
2780 		hdev->quirks |= HID_QUIRK_SKIP_OUTPUT_REPORT_ID;
2781 		sc->defer_initialization = 1;
2782 
2783 		ret = sixaxis_set_operational_usb(hdev);
2784 		if (ret < 0) {
2785 			hid_err(hdev, "Failed to set controller into operational mode\n");
2786 			goto err_stop;
2787 		}
2788 
2789 		sony_init_output_report(sc, sixaxis_send_output_report);
2790 	} else if (sc->quirks & NAVIGATION_CONTROLLER_BT) {
2791 		/*
2792 		 * The Navigation controller wants output reports sent on the ctrl
2793 		 * endpoint when connected via Bluetooth.
2794 		 */
2795 		hdev->quirks |= HID_QUIRK_NO_OUTPUT_REPORTS_ON_INTR_EP;
2796 
2797 		ret = sixaxis_set_operational_bt(hdev);
2798 		if (ret < 0) {
2799 			hid_err(hdev, "Failed to set controller into operational mode\n");
2800 			goto err_stop;
2801 		}
2802 
2803 		sony_init_output_report(sc, sixaxis_send_output_report);
2804 	} else if (sc->quirks & SIXAXIS_CONTROLLER_USB) {
2805 		/*
2806 		 * The Sony Sixaxis does not handle HID Output Reports on the
2807 		 * Interrupt EP and the device only becomes active when the
2808 		 * PS button is pressed. See comment for Navigation controller
2809 		 * above for more details.
2810 		 */
2811 		hdev->quirks |= HID_QUIRK_NO_OUTPUT_REPORTS_ON_INTR_EP;
2812 		hdev->quirks |= HID_QUIRK_SKIP_OUTPUT_REPORT_ID;
2813 		sc->defer_initialization = 1;
2814 
2815 		ret = sixaxis_set_operational_usb(hdev);
2816 		if (ret < 0) {
2817 			hid_err(hdev, "Failed to set controller into operational mode\n");
2818 			goto err_stop;
2819 		}
2820 
2821 		ret = sony_register_sensors(sc);
2822 		if (ret) {
2823 			hid_err(sc->hdev,
2824 			"Unable to initialize motion sensors: %d\n", ret);
2825 			goto err_stop;
2826 		}
2827 
2828 		sony_init_output_report(sc, sixaxis_send_output_report);
2829 	} else if (sc->quirks & SIXAXIS_CONTROLLER_BT) {
2830 		/*
2831 		 * The Sixaxis wants output reports sent on the ctrl endpoint
2832 		 * when connected via Bluetooth.
2833 		 */
2834 		hdev->quirks |= HID_QUIRK_NO_OUTPUT_REPORTS_ON_INTR_EP;
2835 
2836 		ret = sixaxis_set_operational_bt(hdev);
2837 		if (ret < 0) {
2838 			hid_err(hdev, "Failed to set controller into operational mode\n");
2839 			goto err_stop;
2840 		}
2841 
2842 		ret = sony_register_sensors(sc);
2843 		if (ret) {
2844 			hid_err(sc->hdev,
2845 			"Unable to initialize motion sensors: %d\n", ret);
2846 			goto err_stop;
2847 		}
2848 
2849 		sony_init_output_report(sc, sixaxis_send_output_report);
2850 	} else if (sc->quirks & DUALSHOCK4_CONTROLLER) {
2851 		ret = dualshock4_get_calibration_data(sc);
2852 		if (ret < 0) {
2853 			hid_err(hdev, "Failed to get calibration data from Dualshock 4\n");
2854 			goto err_stop;
2855 		}
2856 
2857 		ret = dualshock4_get_version_info(sc);
2858 		if (ret < 0) {
2859 			hid_err(sc->hdev, "Failed to get version data from Dualshock 4\n");
2860 			goto err_stop;
2861 		}
2862 
2863 		ret = device_create_file(&sc->hdev->dev, &dev_attr_firmware_version);
2864 		if (ret) {
2865 			hid_err(sc->hdev, "can't create sysfs firmware_version attribute err: %d\n", ret);
2866 			goto err_stop;
2867 		}
2868 		sc->fw_version_created = true;
2869 
2870 		ret = device_create_file(&sc->hdev->dev, &dev_attr_hardware_version);
2871 		if (ret) {
2872 			hid_err(sc->hdev, "can't create sysfs hardware_version attribute err: %d\n", ret);
2873 			goto err_stop;
2874 		}
2875 		sc->hw_version_created = true;
2876 
2877 		/*
2878 		 * The Dualshock 4 touchpad supports 2 touches and has a
2879 		 * resolution of 1920x942 (44.86 dots/mm).
2880 		 */
2881 		ret = sony_register_touchpad(sc, 2, 1920, 942, 0, 0, 0);
2882 		if (ret) {
2883 			hid_err(sc->hdev,
2884 			"Unable to initialize multi-touch slots: %d\n",
2885 			ret);
2886 			goto err_stop;
2887 		}
2888 
2889 		ret = sony_register_sensors(sc);
2890 		if (ret) {
2891 			hid_err(sc->hdev,
2892 			"Unable to initialize motion sensors: %d\n", ret);
2893 			goto err_stop;
2894 		}
2895 
2896 		if (sc->quirks & DUALSHOCK4_CONTROLLER_BT) {
2897 			sc->ds4_bt_poll_interval = DS4_BT_DEFAULT_POLL_INTERVAL_MS;
2898 			ret = device_create_file(&sc->hdev->dev, &dev_attr_bt_poll_interval);
2899 			if (ret)
2900 				hid_warn(sc->hdev,
2901 				 "can't create sysfs bt_poll_interval attribute err: %d\n",
2902 				 ret);
2903 		}
2904 
2905 		if (sc->quirks & DUALSHOCK4_DONGLE) {
2906 			INIT_WORK(&sc->hotplug_worker, dualshock4_calibration_work);
2907 			sc->hotplug_worker_initialized = 1;
2908 			sc->ds4_dongle_state = DONGLE_DISCONNECTED;
2909 		}
2910 
2911 		sony_init_output_report(sc, dualshock4_send_output_report);
2912 	} else if (sc->quirks & NSG_MRXU_REMOTE) {
2913 		/*
2914 		 * The NSG-MRxU touchpad supports 2 touches and has a
2915 		 * resolution of 1667x1868
2916 		 */
2917 		ret = sony_register_touchpad(sc, 2,
2918 			NSG_MRXU_MAX_X, NSG_MRXU_MAX_Y, 15, 15, 1);
2919 		if (ret) {
2920 			hid_err(sc->hdev,
2921 			"Unable to initialize multi-touch slots: %d\n",
2922 			ret);
2923 			goto err_stop;
2924 		}
2925 
2926 	} else if (sc->quirks & MOTION_CONTROLLER) {
2927 		sony_init_output_report(sc, motion_send_output_report);
2928 	} else {
2929 		ret = 0;
2930 	}
2931 
2932 	if (sc->quirks & SONY_LED_SUPPORT) {
2933 		ret = sony_leds_init(sc);
2934 		if (ret < 0)
2935 			goto err_stop;
2936 	}
2937 
2938 	if (sc->quirks & SONY_BATTERY_SUPPORT) {
2939 		ret = sony_battery_probe(sc, append_dev_id);
2940 		if (ret < 0)
2941 			goto err_stop;
2942 
2943 		/* Open the device to receive reports with battery info */
2944 		ret = hid_hw_open(hdev);
2945 		if (ret < 0) {
2946 			hid_err(hdev, "hw open failed\n");
2947 			goto err_stop;
2948 		}
2949 	}
2950 
2951 	if (sc->quirks & SONY_FF_SUPPORT) {
2952 		ret = sony_init_ff(sc);
2953 		if (ret < 0)
2954 			goto err_close;
2955 	}
2956 
2957 	return 0;
2958 err_close:
2959 	hid_hw_close(hdev);
2960 err_stop:
2961 	/* Piggy back on the default ds4_bt_ poll_interval to determine
2962 	 * if we need to remove the file as we don't know for sure if we
2963 	 * executed that logic.
2964 	 */
2965 	if (sc->ds4_bt_poll_interval)
2966 		device_remove_file(&sc->hdev->dev, &dev_attr_bt_poll_interval);
2967 	if (sc->fw_version_created)
2968 		device_remove_file(&sc->hdev->dev, &dev_attr_firmware_version);
2969 	if (sc->hw_version_created)
2970 		device_remove_file(&sc->hdev->dev, &dev_attr_hardware_version);
2971 	sony_cancel_work_sync(sc);
2972 	sony_remove_dev_list(sc);
2973 	sony_release_device_id(sc);
2974 	return ret;
2975 }
2976 
2977 static int sony_probe(struct hid_device *hdev, const struct hid_device_id *id)
2978 {
2979 	int ret;
2980 	unsigned long quirks = id->driver_data;
2981 	struct sony_sc *sc;
2982 	struct usb_device *usbdev;
2983 	unsigned int connect_mask = HID_CONNECT_DEFAULT;
2984 
2985 	if (!strcmp(hdev->name, "FutureMax Dance Mat"))
2986 		quirks |= FUTUREMAX_DANCE_MAT;
2987 
2988 	if (!strcmp(hdev->name, "SHANWAN PS3 GamePad") ||
2989 	    !strcmp(hdev->name, "ShanWan PS(R) Ga`epad"))
2990 		quirks |= SHANWAN_GAMEPAD;
2991 
2992 	sc = devm_kzalloc(&hdev->dev, sizeof(*sc), GFP_KERNEL);
2993 	if (sc == NULL) {
2994 		hid_err(hdev, "can't alloc sony descriptor\n");
2995 		return -ENOMEM;
2996 	}
2997 
2998 	spin_lock_init(&sc->lock);
2999 
3000 	sc->quirks = quirks;
3001 	hid_set_drvdata(hdev, sc);
3002 	sc->hdev = hdev;
3003 
3004 	ret = hid_parse(hdev);
3005 	if (ret) {
3006 		hid_err(hdev, "parse failed\n");
3007 		return ret;
3008 	}
3009 
3010 	if (sc->quirks & VAIO_RDESC_CONSTANT)
3011 		connect_mask |= HID_CONNECT_HIDDEV_FORCE;
3012 	else if (sc->quirks & SIXAXIS_CONTROLLER)
3013 		connect_mask |= HID_CONNECT_HIDDEV_FORCE;
3014 
3015 	/* Patch the hw version on DS3/4 compatible devices, so applications can
3016 	 * distinguish between the default HID mappings and the mappings defined
3017 	 * by the Linux game controller spec. This is important for the SDL2
3018 	 * library, which has a game controller database, which uses device ids
3019 	 * in combination with version as a key.
3020 	 */
3021 	if (sc->quirks & (SIXAXIS_CONTROLLER | DUALSHOCK4_CONTROLLER))
3022 		hdev->version |= 0x8000;
3023 
3024 	ret = hid_hw_start(hdev, connect_mask);
3025 	if (ret) {
3026 		hid_err(hdev, "hw start failed\n");
3027 		return ret;
3028 	}
3029 
3030 	/* sony_input_configured can fail, but this doesn't result
3031 	 * in hid_hw_start failures (intended). Check whether
3032 	 * the HID layer claimed the device else fail.
3033 	 * We don't know the actual reason for the failure, most
3034 	 * likely it is due to EEXIST in case of double connection
3035 	 * of USB and Bluetooth, but could have been due to ENOMEM
3036 	 * or other reasons as well.
3037 	 */
3038 	if (!(hdev->claimed & HID_CLAIMED_INPUT)) {
3039 		hid_err(hdev, "failed to claim input\n");
3040 		ret = -ENODEV;
3041 		goto err;
3042 	}
3043 
3044 	if (sc->quirks & (GHL_GUITAR_PS3WIIU | GHL_GUITAR_PS4)) {
3045 		if (!hid_is_usb(hdev)) {
3046 			ret = -EINVAL;
3047 			goto err;
3048 		}
3049 
3050 		usbdev = to_usb_device(sc->hdev->dev.parent->parent);
3051 
3052 		sc->ghl_urb = usb_alloc_urb(0, GFP_ATOMIC);
3053 		if (!sc->ghl_urb) {
3054 			ret = -ENOMEM;
3055 			goto err;
3056 		}
3057 
3058 		if (sc->quirks & GHL_GUITAR_PS3WIIU)
3059 			ret = ghl_init_urb(sc, usbdev, ghl_ps3wiiu_magic_data,
3060 							   ARRAY_SIZE(ghl_ps3wiiu_magic_data));
3061 		else if (sc->quirks & GHL_GUITAR_PS4)
3062 			ret = ghl_init_urb(sc, usbdev, ghl_ps4_magic_data,
3063 							   ARRAY_SIZE(ghl_ps4_magic_data));
3064 		if (ret) {
3065 			hid_err(hdev, "error preparing URB\n");
3066 			goto err;
3067 		}
3068 
3069 		timer_setup(&sc->ghl_poke_timer, ghl_magic_poke, 0);
3070 		mod_timer(&sc->ghl_poke_timer,
3071 			  jiffies + GHL_GUITAR_POKE_INTERVAL*HZ);
3072 	}
3073 
3074 	return ret;
3075 
3076 err:
3077 	hid_hw_stop(hdev);
3078 	return ret;
3079 }
3080 
3081 static void sony_remove(struct hid_device *hdev)
3082 {
3083 	struct sony_sc *sc = hid_get_drvdata(hdev);
3084 
3085 	if (sc->quirks & (GHL_GUITAR_PS3WIIU | GHL_GUITAR_PS4)) {
3086 		del_timer_sync(&sc->ghl_poke_timer);
3087 		usb_free_urb(sc->ghl_urb);
3088 	}
3089 
3090 	hid_hw_close(hdev);
3091 
3092 	if (sc->quirks & DUALSHOCK4_CONTROLLER_BT)
3093 		device_remove_file(&sc->hdev->dev, &dev_attr_bt_poll_interval);
3094 
3095 	if (sc->fw_version_created)
3096 		device_remove_file(&sc->hdev->dev, &dev_attr_firmware_version);
3097 
3098 	if (sc->hw_version_created)
3099 		device_remove_file(&sc->hdev->dev, &dev_attr_hardware_version);
3100 
3101 	sony_cancel_work_sync(sc);
3102 
3103 	sony_remove_dev_list(sc);
3104 
3105 	sony_release_device_id(sc);
3106 
3107 	hid_hw_stop(hdev);
3108 }
3109 
3110 #ifdef CONFIG_PM
3111 
3112 static int sony_suspend(struct hid_device *hdev, pm_message_t message)
3113 {
3114 #ifdef CONFIG_SONY_FF
3115 
3116 	/* On suspend stop any running force-feedback events */
3117 	if (SONY_FF_SUPPORT) {
3118 		struct sony_sc *sc = hid_get_drvdata(hdev);
3119 
3120 		sc->left = sc->right = 0;
3121 		sony_send_output_report(sc);
3122 	}
3123 
3124 #endif
3125 	return 0;
3126 }
3127 
3128 static int sony_resume(struct hid_device *hdev)
3129 {
3130 	struct sony_sc *sc = hid_get_drvdata(hdev);
3131 
3132 	/*
3133 	 * The Sixaxis and navigation controllers on USB need to be
3134 	 * reinitialized on resume or they won't behave properly.
3135 	 */
3136 	if ((sc->quirks & SIXAXIS_CONTROLLER_USB) ||
3137 		(sc->quirks & NAVIGATION_CONTROLLER_USB)) {
3138 		sixaxis_set_operational_usb(sc->hdev);
3139 		sc->defer_initialization = 1;
3140 	}
3141 
3142 	return 0;
3143 }
3144 
3145 #endif
3146 
3147 static const struct hid_device_id sony_devices[] = {
3148 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER),
3149 		.driver_data = SIXAXIS_CONTROLLER_USB },
3150 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_NAVIGATION_CONTROLLER),
3151 		.driver_data = NAVIGATION_CONTROLLER_USB },
3152 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_NAVIGATION_CONTROLLER),
3153 		.driver_data = NAVIGATION_CONTROLLER_BT },
3154 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_MOTION_CONTROLLER),
3155 		.driver_data = MOTION_CONTROLLER_USB },
3156 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_MOTION_CONTROLLER),
3157 		.driver_data = MOTION_CONTROLLER_BT },
3158 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER),
3159 		.driver_data = SIXAXIS_CONTROLLER_BT },
3160 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE),
3161 		.driver_data = VAIO_RDESC_CONSTANT },
3162 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGP_MOUSE),
3163 		.driver_data = VAIO_RDESC_CONSTANT },
3164 	/*
3165 	 * Wired Buzz Controller. Reported as Sony Hub from its USB ID and as
3166 	 * Logitech joystick from the device descriptor.
3167 	 */
3168 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_BUZZ_CONTROLLER),
3169 		.driver_data = BUZZ_CONTROLLER },
3170 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_WIRELESS_BUZZ_CONTROLLER),
3171 		.driver_data = BUZZ_CONTROLLER },
3172 	/* PS3 BD Remote Control */
3173 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_BDREMOTE),
3174 		.driver_data = PS3REMOTE },
3175 	/* Logitech Harmony Adapter for PS3 */
3176 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_HARMONY_PS3),
3177 		.driver_data = PS3REMOTE },
3178 	/* SMK-Link PS3 BD Remote Control */
3179 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SMK, USB_DEVICE_ID_SMK_PS3_BDREMOTE),
3180 		.driver_data = PS3REMOTE },
3181 	/* Sony Dualshock 4 controllers for PS4 */
3182 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER),
3183 		.driver_data = DUALSHOCK4_CONTROLLER_USB },
3184 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER),
3185 		.driver_data = DUALSHOCK4_CONTROLLER_BT },
3186 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER_2),
3187 		.driver_data = DUALSHOCK4_CONTROLLER_USB },
3188 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER_2),
3189 		.driver_data = DUALSHOCK4_CONTROLLER_BT },
3190 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER_DONGLE),
3191 		.driver_data = DUALSHOCK4_DONGLE },
3192 	/* Nyko Core Controller for PS3 */
3193 	{ HID_USB_DEVICE(USB_VENDOR_ID_SINO_LITE, USB_DEVICE_ID_SINO_LITE_CONTROLLER),
3194 		.driver_data = SIXAXIS_CONTROLLER_USB | SINO_LITE_CONTROLLER },
3195 	/* SMK-Link NSG-MR5U Remote Control */
3196 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SMK, USB_DEVICE_ID_SMK_NSG_MR5U_REMOTE),
3197 		.driver_data = NSG_MR5U_REMOTE_BT },
3198 	/* SMK-Link NSG-MR7U Remote Control */
3199 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SMK, USB_DEVICE_ID_SMK_NSG_MR7U_REMOTE),
3200 		.driver_data = NSG_MR7U_REMOTE_BT },
3201 	/* Guitar Hero Live PS3 and Wii U guitar dongles */
3202 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY_RHYTHM, USB_DEVICE_ID_SONY_PS3WIIU_GHLIVE_DONGLE),
3203 		.driver_data = GHL_GUITAR_PS3WIIU | GH_GUITAR_CONTROLLER },
3204 	/* Guitar Hero PC Guitar Dongle */
3205 	{ HID_USB_DEVICE(USB_VENDOR_ID_REDOCTANE, USB_DEVICE_ID_REDOCTANE_GUITAR_DONGLE),
3206 		.driver_data = GH_GUITAR_CONTROLLER },
3207 	/* Guitar Hero PS3 World Tour Guitar Dongle */
3208 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY_RHYTHM, USB_DEVICE_ID_SONY_PS3_GUITAR_DONGLE),
3209 		.driver_data = GH_GUITAR_CONTROLLER },
3210 	/* Guitar Hero Live PS4 guitar dongles */
3211 	{ HID_USB_DEVICE(USB_VENDOR_ID_REDOCTANE, USB_DEVICE_ID_REDOCTANE_PS4_GHLIVE_DONGLE),
3212 		.driver_data = GHL_GUITAR_PS4 | GH_GUITAR_CONTROLLER },
3213 	{ }
3214 };
3215 MODULE_DEVICE_TABLE(hid, sony_devices);
3216 
3217 static struct hid_driver sony_driver = {
3218 	.name             = "sony",
3219 	.id_table         = sony_devices,
3220 	.input_mapping    = sony_mapping,
3221 	.input_configured = sony_input_configured,
3222 	.probe            = sony_probe,
3223 	.remove           = sony_remove,
3224 	.report_fixup     = sony_report_fixup,
3225 	.raw_event        = sony_raw_event,
3226 
3227 #ifdef CONFIG_PM
3228 	.suspend          = sony_suspend,
3229 	.resume	          = sony_resume,
3230 	.reset_resume     = sony_resume,
3231 #endif
3232 };
3233 
3234 static int __init sony_init(void)
3235 {
3236 	dbg_hid("Sony:%s\n", __func__);
3237 
3238 	return hid_register_driver(&sony_driver);
3239 }
3240 
3241 static void __exit sony_exit(void)
3242 {
3243 	dbg_hid("Sony:%s\n", __func__);
3244 
3245 	hid_unregister_driver(&sony_driver);
3246 	ida_destroy(&sony_device_id_allocator);
3247 }
3248 module_init(sony_init);
3249 module_exit(sony_exit);
3250 
3251 MODULE_LICENSE("GPL");
3252