xref: /openbmc/linux/drivers/hid/hid-sony.c (revision 55fd7e02)
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  */
15 
16 /*
17  */
18 
19 /*
20  * NOTE: in order for the Sony PS3 BD Remote Control to be found by
21  * a Bluetooth host, the key combination Start+Enter has to be kept pressed
22  * for about 7 seconds with the Bluetooth Host Controller in discovering mode.
23  *
24  * There will be no PIN request from the device.
25  */
26 
27 #include <linux/device.h>
28 #include <linux/hid.h>
29 #include <linux/module.h>
30 #include <linux/slab.h>
31 #include <linux/leds.h>
32 #include <linux/power_supply.h>
33 #include <linux/spinlock.h>
34 #include <linux/list.h>
35 #include <linux/idr.h>
36 #include <linux/input/mt.h>
37 #include <linux/crc32.h>
38 #include <asm/unaligned.h>
39 
40 #include "hid-ids.h"
41 
42 #define VAIO_RDESC_CONSTANT       BIT(0)
43 #define SIXAXIS_CONTROLLER_USB    BIT(1)
44 #define SIXAXIS_CONTROLLER_BT     BIT(2)
45 #define BUZZ_CONTROLLER           BIT(3)
46 #define PS3REMOTE                 BIT(4)
47 #define DUALSHOCK4_CONTROLLER_USB BIT(5)
48 #define DUALSHOCK4_CONTROLLER_BT  BIT(6)
49 #define DUALSHOCK4_DONGLE         BIT(7)
50 #define MOTION_CONTROLLER_USB     BIT(8)
51 #define MOTION_CONTROLLER_BT      BIT(9)
52 #define NAVIGATION_CONTROLLER_USB BIT(10)
53 #define NAVIGATION_CONTROLLER_BT  BIT(11)
54 #define SINO_LITE_CONTROLLER      BIT(12)
55 #define FUTUREMAX_DANCE_MAT       BIT(13)
56 #define NSG_MR5U_REMOTE_BT        BIT(14)
57 #define NSG_MR7U_REMOTE_BT        BIT(15)
58 #define SHANWAN_GAMEPAD           BIT(16)
59 
60 #define SIXAXIS_CONTROLLER (SIXAXIS_CONTROLLER_USB | SIXAXIS_CONTROLLER_BT)
61 #define MOTION_CONTROLLER (MOTION_CONTROLLER_USB | MOTION_CONTROLLER_BT)
62 #define NAVIGATION_CONTROLLER (NAVIGATION_CONTROLLER_USB |\
63 				NAVIGATION_CONTROLLER_BT)
64 #define DUALSHOCK4_CONTROLLER (DUALSHOCK4_CONTROLLER_USB |\
65 				DUALSHOCK4_CONTROLLER_BT | \
66 				DUALSHOCK4_DONGLE)
67 #define SONY_LED_SUPPORT (SIXAXIS_CONTROLLER | BUZZ_CONTROLLER |\
68 				DUALSHOCK4_CONTROLLER | MOTION_CONTROLLER |\
69 				NAVIGATION_CONTROLLER)
70 #define SONY_BATTERY_SUPPORT (SIXAXIS_CONTROLLER | DUALSHOCK4_CONTROLLER |\
71 				MOTION_CONTROLLER_BT | NAVIGATION_CONTROLLER)
72 #define SONY_FF_SUPPORT (SIXAXIS_CONTROLLER | DUALSHOCK4_CONTROLLER |\
73 				MOTION_CONTROLLER)
74 #define SONY_BT_DEVICE (SIXAXIS_CONTROLLER_BT | DUALSHOCK4_CONTROLLER_BT |\
75 			MOTION_CONTROLLER_BT | NAVIGATION_CONTROLLER_BT)
76 #define NSG_MRXU_REMOTE (NSG_MR5U_REMOTE_BT | NSG_MR7U_REMOTE_BT)
77 
78 #define MAX_LEDS 4
79 #define NSG_MRXU_MAX_X 1667
80 #define NSG_MRXU_MAX_Y 1868
81 
82 
83 /* PS/3 Motion controller */
84 static u8 motion_rdesc[] = {
85 	0x05, 0x01,         /*  Usage Page (Desktop),               */
86 	0x09, 0x04,         /*  Usage (Joystick),                   */
87 	0xA1, 0x01,         /*  Collection (Application),           */
88 	0xA1, 0x02,         /*      Collection (Logical),           */
89 	0x85, 0x01,         /*          Report ID (1),              */
90 	0x75, 0x01,         /*          Report Size (1),            */
91 	0x95, 0x15,         /*          Report Count (21),          */
92 	0x15, 0x00,         /*          Logical Minimum (0),        */
93 	0x25, 0x01,         /*          Logical Maximum (1),        */
94 	0x35, 0x00,         /*          Physical Minimum (0),       */
95 	0x45, 0x01,         /*          Physical Maximum (1),       */
96 	0x05, 0x09,         /*          Usage Page (Button),        */
97 	0x19, 0x01,         /*          Usage Minimum (01h),        */
98 	0x29, 0x15,         /*          Usage Maximum (15h),        */
99 	0x81, 0x02,         /*          Input (Variable),           * Buttons */
100 	0x95, 0x0B,         /*          Report Count (11),          */
101 	0x06, 0x00, 0xFF,   /*          Usage Page (FF00h),         */
102 	0x81, 0x03,         /*          Input (Constant, Variable), * Padding */
103 	0x15, 0x00,         /*          Logical Minimum (0),        */
104 	0x26, 0xFF, 0x00,   /*          Logical Maximum (255),      */
105 	0x05, 0x01,         /*          Usage Page (Desktop),       */
106 	0xA1, 0x00,         /*          Collection (Physical),      */
107 	0x75, 0x08,         /*              Report Size (8),        */
108 	0x95, 0x01,         /*              Report Count (1),       */
109 	0x35, 0x00,         /*              Physical Minimum (0),   */
110 	0x46, 0xFF, 0x00,   /*              Physical Maximum (255), */
111 	0x09, 0x30,         /*              Usage (X),              */
112 	0x81, 0x02,         /*              Input (Variable),       * Trigger */
113 	0xC0,               /*          End Collection,             */
114 	0x06, 0x00, 0xFF,   /*          Usage Page (FF00h),         */
115 	0x75, 0x08,         /*          Report Size (8),            */
116 	0x95, 0x07,         /*          Report Count (7),           * skip 7 bytes */
117 	0x81, 0x02,         /*          Input (Variable),           */
118 	0x05, 0x01,         /*          Usage Page (Desktop),       */
119 	0x75, 0x10,         /*          Report Size (16),           */
120 	0x46, 0xFF, 0xFF,   /*          Physical Maximum (65535),   */
121 	0x27, 0xFF, 0xFF, 0x00, 0x00, /*      Logical Maximum (65535),    */
122 	0x95, 0x03,         /*          Report Count (3),           * 3x Accels */
123 	0x09, 0x33,         /*              Usage (rX),             */
124 	0x09, 0x34,         /*              Usage (rY),             */
125 	0x09, 0x35,         /*              Usage (rZ),             */
126 	0x81, 0x02,         /*          Input (Variable),           */
127 	0x06, 0x00, 0xFF,   /*          Usage Page (FF00h),         */
128 	0x95, 0x03,         /*          Report Count (3),           * Skip Accels 2nd frame */
129 	0x81, 0x02,         /*          Input (Variable),           */
130 	0x05, 0x01,         /*          Usage Page (Desktop),       */
131 	0x09, 0x01,         /*          Usage (Pointer),            */
132 	0x95, 0x03,         /*          Report Count (3),           * 3x Gyros */
133 	0x81, 0x02,         /*          Input (Variable),           */
134 	0x06, 0x00, 0xFF,   /*          Usage Page (FF00h),         */
135 	0x95, 0x03,         /*          Report Count (3),           * Skip Gyros 2nd frame */
136 	0x81, 0x02,         /*          Input (Variable),           */
137 	0x75, 0x0C,         /*          Report Size (12),           */
138 	0x46, 0xFF, 0x0F,   /*          Physical Maximum (4095),    */
139 	0x26, 0xFF, 0x0F,   /*          Logical Maximum (4095),     */
140 	0x95, 0x04,         /*          Report Count (4),           * Skip Temp and Magnetometers */
141 	0x81, 0x02,         /*          Input (Variable),           */
142 	0x75, 0x08,         /*          Report Size (8),            */
143 	0x46, 0xFF, 0x00,   /*          Physical Maximum (255),     */
144 	0x26, 0xFF, 0x00,   /*          Logical Maximum (255),      */
145 	0x95, 0x06,         /*          Report Count (6),           * Skip Timestamp and Extension Bytes */
146 	0x81, 0x02,         /*          Input (Variable),           */
147 	0x75, 0x08,         /*          Report Size (8),            */
148 	0x95, 0x30,         /*          Report Count (48),          */
149 	0x09, 0x01,         /*          Usage (Pointer),            */
150 	0x91, 0x02,         /*          Output (Variable),          */
151 	0x75, 0x08,         /*          Report Size (8),            */
152 	0x95, 0x30,         /*          Report Count (48),          */
153 	0x09, 0x01,         /*          Usage (Pointer),            */
154 	0xB1, 0x02,         /*          Feature (Variable),         */
155 	0xC0,               /*      End Collection,                 */
156 	0xA1, 0x02,         /*      Collection (Logical),           */
157 	0x85, 0x02,         /*          Report ID (2),              */
158 	0x75, 0x08,         /*          Report Size (8),            */
159 	0x95, 0x30,         /*          Report Count (48),          */
160 	0x09, 0x01,         /*          Usage (Pointer),            */
161 	0xB1, 0x02,         /*          Feature (Variable),         */
162 	0xC0,               /*      End Collection,                 */
163 	0xA1, 0x02,         /*      Collection (Logical),           */
164 	0x85, 0xEE,         /*          Report ID (238),            */
165 	0x75, 0x08,         /*          Report Size (8),            */
166 	0x95, 0x30,         /*          Report Count (48),          */
167 	0x09, 0x01,         /*          Usage (Pointer),            */
168 	0xB1, 0x02,         /*          Feature (Variable),         */
169 	0xC0,               /*      End Collection,                 */
170 	0xA1, 0x02,         /*      Collection (Logical),           */
171 	0x85, 0xEF,         /*          Report ID (239),            */
172 	0x75, 0x08,         /*          Report Size (8),            */
173 	0x95, 0x30,         /*          Report Count (48),          */
174 	0x09, 0x01,         /*          Usage (Pointer),            */
175 	0xB1, 0x02,         /*          Feature (Variable),         */
176 	0xC0,               /*      End Collection,                 */
177 	0xC0                /*  End Collection                      */
178 };
179 
180 static u8 ps3remote_rdesc[] = {
181 	0x05, 0x01,          /* GUsagePage Generic Desktop */
182 	0x09, 0x05,          /* LUsage 0x05 [Game Pad] */
183 	0xA1, 0x01,          /* MCollection Application (mouse, keyboard) */
184 
185 	 /* Use collection 1 for joypad buttons */
186 	 0xA1, 0x02,         /* MCollection Logical (interrelated data) */
187 
188 	  /*
189 	   * Ignore the 1st byte, maybe it is used for a controller
190 	   * number but it's not needed for correct operation
191 	   */
192 	  0x75, 0x08,        /* GReportSize 0x08 [8] */
193 	  0x95, 0x01,        /* GReportCount 0x01 [1] */
194 	  0x81, 0x01,        /* MInput 0x01 (Const[0] Arr[1] Abs[2]) */
195 
196 	  /*
197 	   * Bytes from 2nd to 4th are a bitmap for joypad buttons, for these
198 	   * buttons multiple keypresses are allowed
199 	   */
200 	  0x05, 0x09,        /* GUsagePage Button */
201 	  0x19, 0x01,        /* LUsageMinimum 0x01 [Button 1 (primary/trigger)] */
202 	  0x29, 0x18,        /* LUsageMaximum 0x18 [Button 24] */
203 	  0x14,              /* GLogicalMinimum [0] */
204 	  0x25, 0x01,        /* GLogicalMaximum 0x01 [1] */
205 	  0x75, 0x01,        /* GReportSize 0x01 [1] */
206 	  0x95, 0x18,        /* GReportCount 0x18 [24] */
207 	  0x81, 0x02,        /* MInput 0x02 (Data[0] Var[1] Abs[2]) */
208 
209 	  0xC0,              /* MEndCollection */
210 
211 	 /* Use collection 2 for remote control buttons */
212 	 0xA1, 0x02,         /* MCollection Logical (interrelated data) */
213 
214 	  /* 5th byte is used for remote control buttons */
215 	  0x05, 0x09,        /* GUsagePage Button */
216 	  0x18,              /* LUsageMinimum [No button pressed] */
217 	  0x29, 0xFE,        /* LUsageMaximum 0xFE [Button 254] */
218 	  0x14,              /* GLogicalMinimum [0] */
219 	  0x26, 0xFE, 0x00,  /* GLogicalMaximum 0x00FE [254] */
220 	  0x75, 0x08,        /* GReportSize 0x08 [8] */
221 	  0x95, 0x01,        /* GReportCount 0x01 [1] */
222 	  0x80,              /* MInput  */
223 
224 	  /*
225 	   * Ignore bytes from 6th to 11th, 6th to 10th are always constant at
226 	   * 0xff and 11th is for press indication
227 	   */
228 	  0x75, 0x08,        /* GReportSize 0x08 [8] */
229 	  0x95, 0x06,        /* GReportCount 0x06 [6] */
230 	  0x81, 0x01,        /* MInput 0x01 (Const[0] Arr[1] Abs[2]) */
231 
232 	  /* 12th byte is for battery strength */
233 	  0x05, 0x06,        /* GUsagePage Generic Device Controls */
234 	  0x09, 0x20,        /* LUsage 0x20 [Battery Strength] */
235 	  0x14,              /* GLogicalMinimum [0] */
236 	  0x25, 0x05,        /* GLogicalMaximum 0x05 [5] */
237 	  0x75, 0x08,        /* GReportSize 0x08 [8] */
238 	  0x95, 0x01,        /* GReportCount 0x01 [1] */
239 	  0x81, 0x02,        /* MInput 0x02 (Data[0] Var[1] Abs[2]) */
240 
241 	  0xC0,              /* MEndCollection */
242 
243 	 0xC0                /* MEndCollection [Game Pad] */
244 };
245 
246 static const unsigned int ps3remote_keymap_joypad_buttons[] = {
247 	[0x01] = KEY_SELECT,
248 	[0x02] = BTN_THUMBL,		/* L3 */
249 	[0x03] = BTN_THUMBR,		/* R3 */
250 	[0x04] = BTN_START,
251 	[0x05] = KEY_UP,
252 	[0x06] = KEY_RIGHT,
253 	[0x07] = KEY_DOWN,
254 	[0x08] = KEY_LEFT,
255 	[0x09] = BTN_TL2,		/* L2 */
256 	[0x0a] = BTN_TR2,		/* R2 */
257 	[0x0b] = BTN_TL,		/* L1 */
258 	[0x0c] = BTN_TR,		/* R1 */
259 	[0x0d] = KEY_OPTION,		/* options/triangle */
260 	[0x0e] = KEY_BACK,		/* back/circle */
261 	[0x0f] = BTN_0,			/* cross */
262 	[0x10] = KEY_SCREEN,		/* view/square */
263 	[0x11] = KEY_HOMEPAGE,		/* PS button */
264 	[0x14] = KEY_ENTER,
265 };
266 static const unsigned int ps3remote_keymap_remote_buttons[] = {
267 	[0x00] = KEY_1,
268 	[0x01] = KEY_2,
269 	[0x02] = KEY_3,
270 	[0x03] = KEY_4,
271 	[0x04] = KEY_5,
272 	[0x05] = KEY_6,
273 	[0x06] = KEY_7,
274 	[0x07] = KEY_8,
275 	[0x08] = KEY_9,
276 	[0x09] = KEY_0,
277 	[0x0e] = KEY_ESC,		/* return */
278 	[0x0f] = KEY_CLEAR,
279 	[0x16] = KEY_EJECTCD,
280 	[0x1a] = KEY_MENU,		/* top menu */
281 	[0x28] = KEY_TIME,
282 	[0x30] = KEY_PREVIOUS,
283 	[0x31] = KEY_NEXT,
284 	[0x32] = KEY_PLAY,
285 	[0x33] = KEY_REWIND,		/* scan back */
286 	[0x34] = KEY_FORWARD,		/* scan forward */
287 	[0x38] = KEY_STOP,
288 	[0x39] = KEY_PAUSE,
289 	[0x40] = KEY_CONTEXT_MENU,	/* pop up/menu */
290 	[0x60] = KEY_FRAMEBACK,		/* slow/step back */
291 	[0x61] = KEY_FRAMEFORWARD,	/* slow/step forward */
292 	[0x63] = KEY_SUBTITLE,
293 	[0x64] = KEY_AUDIO,
294 	[0x65] = KEY_ANGLE,
295 	[0x70] = KEY_INFO,		/* display */
296 	[0x80] = KEY_BLUE,
297 	[0x81] = KEY_RED,
298 	[0x82] = KEY_GREEN,
299 	[0x83] = KEY_YELLOW,
300 };
301 
302 static const unsigned int buzz_keymap[] = {
303 	/*
304 	 * The controller has 4 remote buzzers, each with one LED and 5
305 	 * buttons.
306 	 *
307 	 * We use the mapping chosen by the controller, which is:
308 	 *
309 	 * Key          Offset
310 	 * -------------------
311 	 * Buzz              1
312 	 * Blue              5
313 	 * Orange            4
314 	 * Green             3
315 	 * Yellow            2
316 	 *
317 	 * So, for example, the orange button on the third buzzer is mapped to
318 	 * BTN_TRIGGER_HAPPY14
319 	 */
320 	 [1] = BTN_TRIGGER_HAPPY1,
321 	 [2] = BTN_TRIGGER_HAPPY2,
322 	 [3] = BTN_TRIGGER_HAPPY3,
323 	 [4] = BTN_TRIGGER_HAPPY4,
324 	 [5] = BTN_TRIGGER_HAPPY5,
325 	 [6] = BTN_TRIGGER_HAPPY6,
326 	 [7] = BTN_TRIGGER_HAPPY7,
327 	 [8] = BTN_TRIGGER_HAPPY8,
328 	 [9] = BTN_TRIGGER_HAPPY9,
329 	[10] = BTN_TRIGGER_HAPPY10,
330 	[11] = BTN_TRIGGER_HAPPY11,
331 	[12] = BTN_TRIGGER_HAPPY12,
332 	[13] = BTN_TRIGGER_HAPPY13,
333 	[14] = BTN_TRIGGER_HAPPY14,
334 	[15] = BTN_TRIGGER_HAPPY15,
335 	[16] = BTN_TRIGGER_HAPPY16,
336 	[17] = BTN_TRIGGER_HAPPY17,
337 	[18] = BTN_TRIGGER_HAPPY18,
338 	[19] = BTN_TRIGGER_HAPPY19,
339 	[20] = BTN_TRIGGER_HAPPY20,
340 };
341 
342 /* The Navigation controller is a partial DS3 and uses the same HID report
343  * and hence the same keymap indices, however not not all axes/buttons
344  * are physically present. We use the same axis and button mapping as
345  * the DS3, which uses the Linux gamepad spec.
346  */
347 static const unsigned int navigation_absmap[] = {
348 	[0x30] = ABS_X,
349 	[0x31] = ABS_Y,
350 	[0x33] = ABS_Z, /* L2 */
351 };
352 
353 /* Buttons not physically available on the device, but still available
354  * in the reports are explicitly set to 0 for documentation purposes.
355  */
356 static const unsigned int navigation_keymap[] = {
357 	[0x01] = 0, /* Select */
358 	[0x02] = BTN_THUMBL, /* L3 */
359 	[0x03] = 0, /* R3 */
360 	[0x04] = 0, /* Start */
361 	[0x05] = BTN_DPAD_UP, /* Up */
362 	[0x06] = BTN_DPAD_RIGHT, /* Right */
363 	[0x07] = BTN_DPAD_DOWN, /* Down */
364 	[0x08] = BTN_DPAD_LEFT, /* Left */
365 	[0x09] = BTN_TL2, /* L2 */
366 	[0x0a] = 0, /* R2 */
367 	[0x0b] = BTN_TL, /* L1 */
368 	[0x0c] = 0, /* R1 */
369 	[0x0d] = BTN_NORTH, /* Triangle */
370 	[0x0e] = BTN_EAST, /* Circle */
371 	[0x0f] = BTN_SOUTH, /* Cross */
372 	[0x10] = BTN_WEST, /* Square */
373 	[0x11] = BTN_MODE, /* PS */
374 };
375 
376 static const unsigned int sixaxis_absmap[] = {
377 	[0x30] = ABS_X,
378 	[0x31] = ABS_Y,
379 	[0x32] = ABS_RX, /* right stick X */
380 	[0x35] = ABS_RY, /* right stick Y */
381 };
382 
383 static const unsigned int sixaxis_keymap[] = {
384 	[0x01] = BTN_SELECT, /* Select */
385 	[0x02] = BTN_THUMBL, /* L3 */
386 	[0x03] = BTN_THUMBR, /* R3 */
387 	[0x04] = BTN_START, /* Start */
388 	[0x05] = BTN_DPAD_UP, /* Up */
389 	[0x06] = BTN_DPAD_RIGHT, /* Right */
390 	[0x07] = BTN_DPAD_DOWN, /* Down */
391 	[0x08] = BTN_DPAD_LEFT, /* Left */
392 	[0x09] = BTN_TL2, /* L2 */
393 	[0x0a] = BTN_TR2, /* R2 */
394 	[0x0b] = BTN_TL, /* L1 */
395 	[0x0c] = BTN_TR, /* R1 */
396 	[0x0d] = BTN_NORTH, /* Triangle */
397 	[0x0e] = BTN_EAST, /* Circle */
398 	[0x0f] = BTN_SOUTH, /* Cross */
399 	[0x10] = BTN_WEST, /* Square */
400 	[0x11] = BTN_MODE, /* PS */
401 };
402 
403 static const unsigned int ds4_absmap[] = {
404 	[0x30] = ABS_X,
405 	[0x31] = ABS_Y,
406 	[0x32] = ABS_RX, /* right stick X */
407 	[0x33] = ABS_Z, /* L2 */
408 	[0x34] = ABS_RZ, /* R2 */
409 	[0x35] = ABS_RY, /* right stick Y */
410 };
411 
412 static const unsigned int ds4_keymap[] = {
413 	[0x1] = BTN_WEST, /* Square */
414 	[0x2] = BTN_SOUTH, /* Cross */
415 	[0x3] = BTN_EAST, /* Circle */
416 	[0x4] = BTN_NORTH, /* Triangle */
417 	[0x5] = BTN_TL, /* L1 */
418 	[0x6] = BTN_TR, /* R1 */
419 	[0x7] = BTN_TL2, /* L2 */
420 	[0x8] = BTN_TR2, /* R2 */
421 	[0x9] = BTN_SELECT, /* Share */
422 	[0xa] = BTN_START, /* Options */
423 	[0xb] = BTN_THUMBL, /* L3 */
424 	[0xc] = BTN_THUMBR, /* R3 */
425 	[0xd] = BTN_MODE, /* PS */
426 };
427 
428 static const struct {int x; int y; } ds4_hat_mapping[] = {
429 	{0, -1}, {1, -1}, {1, 0}, {1, 1}, {0, 1}, {-1, 1}, {-1, 0}, {-1, -1},
430 	{0, 0}
431 };
432 
433 static enum power_supply_property sony_battery_props[] = {
434 	POWER_SUPPLY_PROP_PRESENT,
435 	POWER_SUPPLY_PROP_CAPACITY,
436 	POWER_SUPPLY_PROP_SCOPE,
437 	POWER_SUPPLY_PROP_STATUS,
438 };
439 
440 struct sixaxis_led {
441 	u8 time_enabled; /* the total time the led is active (0xff means forever) */
442 	u8 duty_length;  /* how long a cycle is in deciseconds (0 means "really fast") */
443 	u8 enabled;
444 	u8 duty_off; /* % of duty_length the led is off (0xff means 100%) */
445 	u8 duty_on;  /* % of duty_length the led is on (0xff mean 100%) */
446 } __packed;
447 
448 struct sixaxis_rumble {
449 	u8 padding;
450 	u8 right_duration; /* Right motor duration (0xff means forever) */
451 	u8 right_motor_on; /* Right (small) motor on/off, only supports values of 0 or 1 (off/on) */
452 	u8 left_duration;    /* Left motor duration (0xff means forever) */
453 	u8 left_motor_force; /* left (large) motor, supports force values from 0 to 255 */
454 } __packed;
455 
456 struct sixaxis_output_report {
457 	u8 report_id;
458 	struct sixaxis_rumble rumble;
459 	u8 padding[4];
460 	u8 leds_bitmap; /* bitmap of enabled LEDs: LED_1 = 0x02, LED_2 = 0x04, ... */
461 	struct sixaxis_led led[4];    /* LEDx at (4 - x) */
462 	struct sixaxis_led _reserved; /* LED5, not actually soldered */
463 } __packed;
464 
465 union sixaxis_output_report_01 {
466 	struct sixaxis_output_report data;
467 	u8 buf[36];
468 };
469 
470 struct motion_output_report_02 {
471 	u8 type, zero;
472 	u8 r, g, b;
473 	u8 zero2;
474 	u8 rumble;
475 };
476 
477 #define DS4_FEATURE_REPORT_0x02_SIZE 37
478 #define DS4_FEATURE_REPORT_0x05_SIZE 41
479 #define DS4_FEATURE_REPORT_0x81_SIZE 7
480 #define DS4_FEATURE_REPORT_0xA3_SIZE 49
481 #define DS4_INPUT_REPORT_0x11_SIZE 78
482 #define DS4_OUTPUT_REPORT_0x05_SIZE 32
483 #define DS4_OUTPUT_REPORT_0x11_SIZE 78
484 #define SIXAXIS_REPORT_0xF2_SIZE 17
485 #define SIXAXIS_REPORT_0xF5_SIZE 8
486 #define MOTION_REPORT_0x02_SIZE 49
487 
488 /* Offsets relative to USB input report (0x1). Bluetooth (0x11) requires an
489  * additional +2.
490  */
491 #define DS4_INPUT_REPORT_AXIS_OFFSET      1
492 #define DS4_INPUT_REPORT_BUTTON_OFFSET    5
493 #define DS4_INPUT_REPORT_TIMESTAMP_OFFSET 10
494 #define DS4_INPUT_REPORT_GYRO_X_OFFSET   13
495 #define DS4_INPUT_REPORT_BATTERY_OFFSET  30
496 #define DS4_INPUT_REPORT_TOUCHPAD_OFFSET 33
497 
498 #define SENSOR_SUFFIX " Motion Sensors"
499 #define DS4_TOUCHPAD_SUFFIX " Touchpad"
500 
501 /* Default to 4ms poll interval, which is same as USB (not adjustable). */
502 #define DS4_BT_DEFAULT_POLL_INTERVAL_MS 4
503 #define DS4_BT_MAX_POLL_INTERVAL_MS 62
504 #define DS4_GYRO_RES_PER_DEG_S 1024
505 #define DS4_ACC_RES_PER_G      8192
506 
507 #define SIXAXIS_INPUT_REPORT_ACC_X_OFFSET 41
508 #define SIXAXIS_ACC_RES_PER_G 113
509 
510 static DEFINE_SPINLOCK(sony_dev_list_lock);
511 static LIST_HEAD(sony_device_list);
512 static DEFINE_IDA(sony_device_id_allocator);
513 
514 /* Used for calibration of DS4 accelerometer and gyro. */
515 struct ds4_calibration_data {
516 	int abs_code;
517 	short bias;
518 	/* Calibration requires scaling against a sensitivity value, which is a
519 	 * float. Store sensitivity as a fraction to limit floating point
520 	 * calculations until final calibration.
521 	 */
522 	int sens_numer;
523 	int sens_denom;
524 };
525 
526 enum ds4_dongle_state {
527 	DONGLE_DISCONNECTED,
528 	DONGLE_CALIBRATING,
529 	DONGLE_CONNECTED,
530 	DONGLE_DISABLED
531 };
532 
533 enum sony_worker {
534 	SONY_WORKER_STATE,
535 	SONY_WORKER_HOTPLUG
536 };
537 
538 struct sony_sc {
539 	spinlock_t lock;
540 	struct list_head list_node;
541 	struct hid_device *hdev;
542 	struct input_dev *touchpad;
543 	struct input_dev *sensor_dev;
544 	struct led_classdev *leds[MAX_LEDS];
545 	unsigned long quirks;
546 	struct work_struct hotplug_worker;
547 	struct work_struct state_worker;
548 	void (*send_output_report)(struct sony_sc *);
549 	struct power_supply *battery;
550 	struct power_supply_desc battery_desc;
551 	int device_id;
552 	unsigned fw_version;
553 	unsigned hw_version;
554 	u8 *output_report_dmabuf;
555 
556 #ifdef CONFIG_SONY_FF
557 	u8 left;
558 	u8 right;
559 #endif
560 
561 	u8 mac_address[6];
562 	u8 hotplug_worker_initialized;
563 	u8 state_worker_initialized;
564 	u8 defer_initialization;
565 	u8 cable_state;
566 	u8 battery_charging;
567 	u8 battery_capacity;
568 	u8 led_state[MAX_LEDS];
569 	u8 led_delay_on[MAX_LEDS];
570 	u8 led_delay_off[MAX_LEDS];
571 	u8 led_count;
572 
573 	bool timestamp_initialized;
574 	u16 prev_timestamp;
575 	unsigned int timestamp_us;
576 
577 	u8 ds4_bt_poll_interval;
578 	enum ds4_dongle_state ds4_dongle_state;
579 	/* DS4 calibration data */
580 	struct ds4_calibration_data ds4_calib_data[6];
581 };
582 
583 static void sony_set_leds(struct sony_sc *sc);
584 
585 static inline void sony_schedule_work(struct sony_sc *sc,
586 				      enum sony_worker which)
587 {
588 	unsigned long flags;
589 
590 	switch (which) {
591 	case SONY_WORKER_STATE:
592 		spin_lock_irqsave(&sc->lock, flags);
593 		if (!sc->defer_initialization && sc->state_worker_initialized)
594 			schedule_work(&sc->state_worker);
595 		spin_unlock_irqrestore(&sc->lock, flags);
596 		break;
597 	case SONY_WORKER_HOTPLUG:
598 		if (sc->hotplug_worker_initialized)
599 			schedule_work(&sc->hotplug_worker);
600 		break;
601 	}
602 }
603 
604 static ssize_t ds4_show_poll_interval(struct device *dev,
605 				struct device_attribute
606 				*attr, char *buf)
607 {
608 	struct hid_device *hdev = to_hid_device(dev);
609 	struct sony_sc *sc = hid_get_drvdata(hdev);
610 
611 	return snprintf(buf, PAGE_SIZE, "%i\n", sc->ds4_bt_poll_interval);
612 }
613 
614 static ssize_t ds4_store_poll_interval(struct device *dev,
615 				struct device_attribute *attr,
616 				const char *buf, size_t count)
617 {
618 	struct hid_device *hdev = to_hid_device(dev);
619 	struct sony_sc *sc = hid_get_drvdata(hdev);
620 	unsigned long flags;
621 	u8 interval;
622 
623 	if (kstrtou8(buf, 0, &interval))
624 		return -EINVAL;
625 
626 	if (interval > DS4_BT_MAX_POLL_INTERVAL_MS)
627 		return -EINVAL;
628 
629 	spin_lock_irqsave(&sc->lock, flags);
630 	sc->ds4_bt_poll_interval = interval;
631 	spin_unlock_irqrestore(&sc->lock, flags);
632 
633 	sony_schedule_work(sc, SONY_WORKER_STATE);
634 
635 	return count;
636 }
637 
638 static DEVICE_ATTR(bt_poll_interval, 0644, ds4_show_poll_interval,
639 		ds4_store_poll_interval);
640 
641 static ssize_t sony_show_firmware_version(struct device *dev,
642 				struct device_attribute
643 				*attr, char *buf)
644 {
645 	struct hid_device *hdev = to_hid_device(dev);
646 	struct sony_sc *sc = hid_get_drvdata(hdev);
647 
648 	return snprintf(buf, PAGE_SIZE, "0x%04x\n", sc->fw_version);
649 }
650 
651 static DEVICE_ATTR(firmware_version, 0444, sony_show_firmware_version, NULL);
652 
653 static ssize_t sony_show_hardware_version(struct device *dev,
654 				struct device_attribute
655 				*attr, char *buf)
656 {
657 	struct hid_device *hdev = to_hid_device(dev);
658 	struct sony_sc *sc = hid_get_drvdata(hdev);
659 
660 	return snprintf(buf, PAGE_SIZE, "0x%04x\n", sc->hw_version);
661 }
662 
663 static DEVICE_ATTR(hardware_version, 0444, sony_show_hardware_version, NULL);
664 
665 static u8 *motion_fixup(struct hid_device *hdev, u8 *rdesc,
666 			     unsigned int *rsize)
667 {
668 	*rsize = sizeof(motion_rdesc);
669 	return motion_rdesc;
670 }
671 
672 static u8 *ps3remote_fixup(struct hid_device *hdev, u8 *rdesc,
673 			     unsigned int *rsize)
674 {
675 	*rsize = sizeof(ps3remote_rdesc);
676 	return ps3remote_rdesc;
677 }
678 
679 static int ps3remote_mapping(struct hid_device *hdev, struct hid_input *hi,
680 			     struct hid_field *field, struct hid_usage *usage,
681 			     unsigned long **bit, int *max)
682 {
683 	unsigned int key = usage->hid & HID_USAGE;
684 
685 	if ((usage->hid & HID_USAGE_PAGE) != HID_UP_BUTTON)
686 		return -1;
687 
688 	switch (usage->collection_index) {
689 	case 1:
690 		if (key >= ARRAY_SIZE(ps3remote_keymap_joypad_buttons))
691 			return -1;
692 
693 		key = ps3remote_keymap_joypad_buttons[key];
694 		if (!key)
695 			return -1;
696 		break;
697 	case 2:
698 		if (key >= ARRAY_SIZE(ps3remote_keymap_remote_buttons))
699 			return -1;
700 
701 		key = ps3remote_keymap_remote_buttons[key];
702 		if (!key)
703 			return -1;
704 		break;
705 	default:
706 		return -1;
707 	}
708 
709 	hid_map_usage_clear(hi, usage, bit, max, EV_KEY, key);
710 	return 1;
711 }
712 
713 static int navigation_mapping(struct hid_device *hdev, struct hid_input *hi,
714 			  struct hid_field *field, struct hid_usage *usage,
715 			  unsigned long **bit, int *max)
716 {
717 	if ((usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON) {
718 		unsigned int key = usage->hid & HID_USAGE;
719 
720 		if (key >= ARRAY_SIZE(sixaxis_keymap))
721 			return -1;
722 
723 		key = navigation_keymap[key];
724 		if (!key)
725 			return -1;
726 
727 		hid_map_usage_clear(hi, usage, bit, max, EV_KEY, key);
728 		return 1;
729 	} else if (usage->hid == HID_GD_POINTER) {
730 		/* See comment in sixaxis_mapping, basically the L2 (and R2)
731 		 * triggers are reported through GD Pointer.
732 		 * In addition we ignore any analog button 'axes' and only
733 		 * support digital buttons.
734 		 */
735 		switch (usage->usage_index) {
736 		case 8: /* L2 */
737 			usage->hid = HID_GD_Z;
738 			break;
739 		default:
740 			return -1;
741 		}
742 
743 		hid_map_usage_clear(hi, usage, bit, max, EV_ABS, usage->hid & 0xf);
744 		return 1;
745 	} else if ((usage->hid & HID_USAGE_PAGE) == HID_UP_GENDESK) {
746 		unsigned int abs = usage->hid & HID_USAGE;
747 
748 		if (abs >= ARRAY_SIZE(navigation_absmap))
749 			return -1;
750 
751 		abs = navigation_absmap[abs];
752 
753 		hid_map_usage_clear(hi, usage, bit, max, EV_ABS, abs);
754 		return 1;
755 	}
756 
757 	return -1;
758 }
759 
760 
761 static int sixaxis_mapping(struct hid_device *hdev, struct hid_input *hi,
762 			  struct hid_field *field, struct hid_usage *usage,
763 			  unsigned long **bit, int *max)
764 {
765 	if ((usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON) {
766 		unsigned int key = usage->hid & HID_USAGE;
767 
768 		if (key >= ARRAY_SIZE(sixaxis_keymap))
769 			return -1;
770 
771 		key = sixaxis_keymap[key];
772 		hid_map_usage_clear(hi, usage, bit, max, EV_KEY, key);
773 		return 1;
774 	} else if (usage->hid == HID_GD_POINTER) {
775 		/* The DS3 provides analog values for most buttons and even
776 		 * for HAT axes through GD Pointer. L2 and R2 are reported
777 		 * among these as well instead of as GD Z / RZ. Remap L2
778 		 * and R2 and ignore other analog 'button axes' as there is
779 		 * no good way for reporting them.
780 		 */
781 		switch (usage->usage_index) {
782 		case 8: /* L2 */
783 			usage->hid = HID_GD_Z;
784 			break;
785 		case 9: /* R2 */
786 			usage->hid = HID_GD_RZ;
787 			break;
788 		default:
789 			return -1;
790 		}
791 
792 		hid_map_usage_clear(hi, usage, bit, max, EV_ABS, usage->hid & 0xf);
793 		return 1;
794 	} else if ((usage->hid & HID_USAGE_PAGE) == HID_UP_GENDESK) {
795 		unsigned int abs = usage->hid & HID_USAGE;
796 
797 		if (abs >= ARRAY_SIZE(sixaxis_absmap))
798 			return -1;
799 
800 		abs = sixaxis_absmap[abs];
801 
802 		hid_map_usage_clear(hi, usage, bit, max, EV_ABS, abs);
803 		return 1;
804 	}
805 
806 	return -1;
807 }
808 
809 static int ds4_mapping(struct hid_device *hdev, struct hid_input *hi,
810 		       struct hid_field *field, struct hid_usage *usage,
811 		       unsigned long **bit, int *max)
812 {
813 	if ((usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON) {
814 		unsigned int key = usage->hid & HID_USAGE;
815 
816 		if (key >= ARRAY_SIZE(ds4_keymap))
817 			return -1;
818 
819 		key = ds4_keymap[key];
820 		hid_map_usage_clear(hi, usage, bit, max, EV_KEY, key);
821 		return 1;
822 	} else if ((usage->hid & HID_USAGE_PAGE) == HID_UP_GENDESK) {
823 		unsigned int abs = usage->hid & HID_USAGE;
824 
825 		/* Let the HID parser deal with the HAT. */
826 		if (usage->hid == HID_GD_HATSWITCH)
827 			return 0;
828 
829 		if (abs >= ARRAY_SIZE(ds4_absmap))
830 			return -1;
831 
832 		abs = ds4_absmap[abs];
833 		hid_map_usage_clear(hi, usage, bit, max, EV_ABS, abs);
834 		return 1;
835 	}
836 
837 	return 0;
838 }
839 
840 static u8 *sony_report_fixup(struct hid_device *hdev, u8 *rdesc,
841 		unsigned int *rsize)
842 {
843 	struct sony_sc *sc = hid_get_drvdata(hdev);
844 
845 	if (sc->quirks & (SINO_LITE_CONTROLLER | FUTUREMAX_DANCE_MAT))
846 		return rdesc;
847 
848 	/*
849 	 * Some Sony RF receivers wrongly declare the mouse pointer as a
850 	 * a constant non-data variable.
851 	 */
852 	if ((sc->quirks & VAIO_RDESC_CONSTANT) && *rsize >= 56 &&
853 	    /* usage page: generic desktop controls */
854 	    /* rdesc[0] == 0x05 && rdesc[1] == 0x01 && */
855 	    /* usage: mouse */
856 	    rdesc[2] == 0x09 && rdesc[3] == 0x02 &&
857 	    /* input (usage page for x,y axes): constant, variable, relative */
858 	    rdesc[54] == 0x81 && rdesc[55] == 0x07) {
859 		hid_info(hdev, "Fixing up Sony RF Receiver report descriptor\n");
860 		/* input: data, variable, relative */
861 		rdesc[55] = 0x06;
862 	}
863 
864 	if (sc->quirks & MOTION_CONTROLLER)
865 		return motion_fixup(hdev, rdesc, rsize);
866 
867 	if (sc->quirks & PS3REMOTE)
868 		return ps3remote_fixup(hdev, rdesc, rsize);
869 
870 	/*
871 	 * Some knock-off USB dongles incorrectly report their button count
872 	 * as 13 instead of 16 causing three non-functional buttons.
873 	 */
874 	if ((sc->quirks & SIXAXIS_CONTROLLER_USB) && *rsize >= 45 &&
875 		/* Report Count (13) */
876 		rdesc[23] == 0x95 && rdesc[24] == 0x0D &&
877 		/* Usage Maximum (13) */
878 		rdesc[37] == 0x29 && rdesc[38] == 0x0D &&
879 		/* Report Count (3) */
880 		rdesc[43] == 0x95 && rdesc[44] == 0x03) {
881 		hid_info(hdev, "Fixing up USB dongle report descriptor\n");
882 		rdesc[24] = 0x10;
883 		rdesc[38] = 0x10;
884 		rdesc[44] = 0x00;
885 	}
886 
887 	return rdesc;
888 }
889 
890 static void sixaxis_parse_report(struct sony_sc *sc, u8 *rd, int size)
891 {
892 	static const u8 sixaxis_battery_capacity[] = { 0, 1, 25, 50, 75, 100 };
893 	unsigned long flags;
894 	int offset;
895 	u8 cable_state, battery_capacity, battery_charging;
896 
897 	/*
898 	 * The sixaxis is charging if the battery value is 0xee
899 	 * and it is fully charged if the value is 0xef.
900 	 * It does not report the actual level while charging so it
901 	 * is set to 100% while charging is in progress.
902 	 */
903 	offset = (sc->quirks & MOTION_CONTROLLER) ? 12 : 30;
904 
905 	if (rd[offset] >= 0xee) {
906 		battery_capacity = 100;
907 		battery_charging = !(rd[offset] & 0x01);
908 		cable_state = 1;
909 	} else {
910 		u8 index = rd[offset] <= 5 ? rd[offset] : 5;
911 		battery_capacity = sixaxis_battery_capacity[index];
912 		battery_charging = 0;
913 		cable_state = 0;
914 	}
915 
916 	spin_lock_irqsave(&sc->lock, flags);
917 	sc->cable_state = cable_state;
918 	sc->battery_capacity = battery_capacity;
919 	sc->battery_charging = battery_charging;
920 	spin_unlock_irqrestore(&sc->lock, flags);
921 
922 	if (sc->quirks & SIXAXIS_CONTROLLER) {
923 		int val;
924 
925 		offset = SIXAXIS_INPUT_REPORT_ACC_X_OFFSET;
926 		val = ((rd[offset+1] << 8) | rd[offset]) - 511;
927 		input_report_abs(sc->sensor_dev, ABS_X, val);
928 
929 		/* Y and Z are swapped and inversed */
930 		val = 511 - ((rd[offset+5] << 8) | rd[offset+4]);
931 		input_report_abs(sc->sensor_dev, ABS_Y, val);
932 
933 		val = 511 - ((rd[offset+3] << 8) | rd[offset+2]);
934 		input_report_abs(sc->sensor_dev, ABS_Z, val);
935 
936 		input_sync(sc->sensor_dev);
937 	}
938 }
939 
940 static void dualshock4_parse_report(struct sony_sc *sc, u8 *rd, int size)
941 {
942 	struct hid_input *hidinput = list_entry(sc->hdev->inputs.next,
943 						struct hid_input, list);
944 	struct input_dev *input_dev = hidinput->input;
945 	unsigned long flags;
946 	int n, m, offset, num_touch_data, max_touch_data;
947 	u8 cable_state, battery_capacity, battery_charging;
948 	u16 timestamp;
949 
950 	/* When using Bluetooth the header is 2 bytes longer, so skip these. */
951 	int data_offset = (sc->quirks & DUALSHOCK4_CONTROLLER_BT) ? 2 : 0;
952 
953 	/* Second bit of third button byte is for the touchpad button. */
954 	offset = data_offset + DS4_INPUT_REPORT_BUTTON_OFFSET;
955 	input_report_key(sc->touchpad, BTN_LEFT, rd[offset+2] & 0x2);
956 
957 	/*
958 	 * The default behavior of the Dualshock 4 is to send reports using
959 	 * report type 1 when running over Bluetooth. However, when feature
960 	 * report 2 is requested during the controller initialization it starts
961 	 * sending input reports in report 17. Since report 17 is undefined
962 	 * in the default HID descriptor, the HID layer won't generate events.
963 	 * While it is possible (and this was done before) to fixup the HID
964 	 * descriptor to add this mapping, it was better to do this manually.
965 	 * The reason is there were various pieces software both open and closed
966 	 * source, relying on the descriptors to be the same across various
967 	 * operating systems. If the descriptors wouldn't match some
968 	 * applications e.g. games on Wine would not be able to function due
969 	 * to different descriptors, which such applications are not parsing.
970 	 */
971 	if (rd[0] == 17) {
972 		int value;
973 
974 		offset = data_offset + DS4_INPUT_REPORT_AXIS_OFFSET;
975 		input_report_abs(input_dev, ABS_X, rd[offset]);
976 		input_report_abs(input_dev, ABS_Y, rd[offset+1]);
977 		input_report_abs(input_dev, ABS_RX, rd[offset+2]);
978 		input_report_abs(input_dev, ABS_RY, rd[offset+3]);
979 
980 		value = rd[offset+4] & 0xf;
981 		if (value > 7)
982 			value = 8; /* Center 0, 0 */
983 		input_report_abs(input_dev, ABS_HAT0X, ds4_hat_mapping[value].x);
984 		input_report_abs(input_dev, ABS_HAT0Y, ds4_hat_mapping[value].y);
985 
986 		input_report_key(input_dev, BTN_WEST, rd[offset+4] & 0x10);
987 		input_report_key(input_dev, BTN_SOUTH, rd[offset+4] & 0x20);
988 		input_report_key(input_dev, BTN_EAST, rd[offset+4] & 0x40);
989 		input_report_key(input_dev, BTN_NORTH, rd[offset+4] & 0x80);
990 
991 		input_report_key(input_dev, BTN_TL, rd[offset+5] & 0x1);
992 		input_report_key(input_dev, BTN_TR, rd[offset+5] & 0x2);
993 		input_report_key(input_dev, BTN_TL2, rd[offset+5] & 0x4);
994 		input_report_key(input_dev, BTN_TR2, rd[offset+5] & 0x8);
995 		input_report_key(input_dev, BTN_SELECT, rd[offset+5] & 0x10);
996 		input_report_key(input_dev, BTN_START, rd[offset+5] & 0x20);
997 		input_report_key(input_dev, BTN_THUMBL, rd[offset+5] & 0x40);
998 		input_report_key(input_dev, BTN_THUMBR, rd[offset+5] & 0x80);
999 
1000 		input_report_key(input_dev, BTN_MODE, rd[offset+6] & 0x1);
1001 
1002 		input_report_abs(input_dev, ABS_Z, rd[offset+7]);
1003 		input_report_abs(input_dev, ABS_RZ, rd[offset+8]);
1004 
1005 		input_sync(input_dev);
1006 	}
1007 
1008 	/* Convert timestamp (in 5.33us unit) to timestamp_us */
1009 	offset = data_offset + DS4_INPUT_REPORT_TIMESTAMP_OFFSET;
1010 	timestamp = get_unaligned_le16(&rd[offset]);
1011 	if (!sc->timestamp_initialized) {
1012 		sc->timestamp_us = ((unsigned int)timestamp * 16) / 3;
1013 		sc->timestamp_initialized = true;
1014 	} else {
1015 		u16 delta;
1016 
1017 		if (sc->prev_timestamp > timestamp)
1018 			delta = (U16_MAX - sc->prev_timestamp + timestamp + 1);
1019 		else
1020 			delta = timestamp - sc->prev_timestamp;
1021 		sc->timestamp_us += (delta * 16) / 3;
1022 	}
1023 	sc->prev_timestamp = timestamp;
1024 	input_event(sc->sensor_dev, EV_MSC, MSC_TIMESTAMP, sc->timestamp_us);
1025 
1026 	offset = data_offset + DS4_INPUT_REPORT_GYRO_X_OFFSET;
1027 	for (n = 0; n < 6; n++) {
1028 		/* Store data in int for more precision during mult_frac. */
1029 		int raw_data = (short)((rd[offset+1] << 8) | rd[offset]);
1030 		struct ds4_calibration_data *calib = &sc->ds4_calib_data[n];
1031 
1032 		/* High precision is needed during calibration, but the
1033 		 * calibrated values are within 32-bit.
1034 		 * Note: we swap numerator 'x' and 'numer' in mult_frac for
1035 		 *       precision reasons so we don't need 64-bit.
1036 		 */
1037 		int calib_data = mult_frac(calib->sens_numer,
1038 					   raw_data - calib->bias,
1039 					   calib->sens_denom);
1040 
1041 		input_report_abs(sc->sensor_dev, calib->abs_code, calib_data);
1042 		offset += 2;
1043 	}
1044 	input_sync(sc->sensor_dev);
1045 
1046 	/*
1047 	 * The lower 4 bits of byte 30 (or 32 for BT) contain the battery level
1048 	 * and the 5th bit contains the USB cable state.
1049 	 */
1050 	offset = data_offset + DS4_INPUT_REPORT_BATTERY_OFFSET;
1051 	cable_state = (rd[offset] >> 4) & 0x01;
1052 	battery_capacity = rd[offset] & 0x0F;
1053 
1054 	/*
1055 	 * When a USB power source is connected the battery level ranges from
1056 	 * 0 to 10, and when running on battery power it ranges from 0 to 9.
1057 	 * A battery level above 10 when plugged in means charge completed.
1058 	 */
1059 	if (!cable_state || battery_capacity > 10)
1060 		battery_charging = 0;
1061 	else
1062 		battery_charging = 1;
1063 
1064 	if (!cable_state)
1065 		battery_capacity++;
1066 	if (battery_capacity > 10)
1067 		battery_capacity = 10;
1068 
1069 	battery_capacity *= 10;
1070 
1071 	spin_lock_irqsave(&sc->lock, flags);
1072 	sc->cable_state = cable_state;
1073 	sc->battery_capacity = battery_capacity;
1074 	sc->battery_charging = battery_charging;
1075 	spin_unlock_irqrestore(&sc->lock, flags);
1076 
1077 	/*
1078 	 * The Dualshock 4 multi-touch trackpad data starts at offset 33 on USB
1079 	 * and 35 on Bluetooth.
1080 	 * The first byte indicates the number of touch data in the report.
1081 	 * Trackpad data starts 2 bytes later (e.g. 35 for USB).
1082 	 */
1083 	offset = data_offset + DS4_INPUT_REPORT_TOUCHPAD_OFFSET;
1084 	max_touch_data = (sc->quirks & DUALSHOCK4_CONTROLLER_BT) ? 4 : 3;
1085 	if (rd[offset] > 0 && rd[offset] <= max_touch_data)
1086 		num_touch_data = rd[offset];
1087 	else
1088 		num_touch_data = 1;
1089 	offset += 1;
1090 
1091 	for (m = 0; m < num_touch_data; m++) {
1092 		/* Skip past timestamp */
1093 		offset += 1;
1094 
1095 		/*
1096 		 * The first 7 bits of the first byte is a counter and bit 8 is
1097 		 * a touch indicator that is 0 when pressed and 1 when not
1098 		 * pressed.
1099 		 * The next 3 bytes are two 12 bit touch coordinates, X and Y.
1100 		 * The data for the second touch is in the same format and
1101 		 * immediately follows the data for the first.
1102 		 */
1103 		for (n = 0; n < 2; n++) {
1104 			u16 x, y;
1105 			bool active;
1106 
1107 			x = rd[offset+1] | ((rd[offset+2] & 0xF) << 8);
1108 			y = ((rd[offset+2] & 0xF0) >> 4) | (rd[offset+3] << 4);
1109 
1110 			active = !(rd[offset] >> 7);
1111 			input_mt_slot(sc->touchpad, n);
1112 			input_mt_report_slot_state(sc->touchpad, MT_TOOL_FINGER, active);
1113 
1114 			if (active) {
1115 				input_report_abs(sc->touchpad, ABS_MT_POSITION_X, x);
1116 				input_report_abs(sc->touchpad, ABS_MT_POSITION_Y, y);
1117 			}
1118 
1119 			offset += 4;
1120 		}
1121 		input_mt_sync_frame(sc->touchpad);
1122 		input_sync(sc->touchpad);
1123 	}
1124 }
1125 
1126 static void nsg_mrxu_parse_report(struct sony_sc *sc, u8 *rd, int size)
1127 {
1128 	int n, offset, relx, rely;
1129 	u8 active;
1130 
1131 	/*
1132 	 * The NSG-MRxU multi-touch trackpad data starts at offset 1 and
1133 	 *   the touch-related data starts at offset 2.
1134 	 * For the first byte, bit 0 is set when touchpad button is pressed.
1135 	 * Bit 2 is set when a touch is active and the drag (Fn) key is pressed.
1136 	 * This drag key is mapped to BTN_LEFT.  It is operational only when a
1137 	 *   touch point is active.
1138 	 * Bit 4 is set when only the first touch point is active.
1139 	 * Bit 6 is set when only the second touch point is active.
1140 	 * Bits 5 and 7 are set when both touch points are active.
1141 	 * The next 3 bytes are two 12 bit X/Y coordinates for the first touch.
1142 	 * The following byte, offset 5, has the touch width and length.
1143 	 *   Bits 0-4=X (width), bits 5-7=Y (length).
1144 	 * A signed relative X coordinate is at offset 6.
1145 	 * The bytes at offset 7-9 are the second touch X/Y coordinates.
1146 	 * Offset 10 has the second touch width and length.
1147 	 * Offset 11 has the relative Y coordinate.
1148 	 */
1149 	offset = 1;
1150 
1151 	input_report_key(sc->touchpad, BTN_LEFT, rd[offset] & 0x0F);
1152 	active = (rd[offset] >> 4);
1153 	relx = (s8) rd[offset+5];
1154 	rely = ((s8) rd[offset+10]) * -1;
1155 
1156 	offset++;
1157 
1158 	for (n = 0; n < 2; n++) {
1159 		u16 x, y;
1160 		u8 contactx, contacty;
1161 
1162 		x = rd[offset] | ((rd[offset+1] & 0x0F) << 8);
1163 		y = ((rd[offset+1] & 0xF0) >> 4) | (rd[offset+2] << 4);
1164 
1165 		input_mt_slot(sc->touchpad, n);
1166 		input_mt_report_slot_state(sc->touchpad, MT_TOOL_FINGER, active & 0x03);
1167 
1168 		if (active & 0x03) {
1169 			contactx = rd[offset+3] & 0x0F;
1170 			contacty = rd[offset+3] >> 4;
1171 			input_report_abs(sc->touchpad, ABS_MT_TOUCH_MAJOR,
1172 				max(contactx, contacty));
1173 			input_report_abs(sc->touchpad, ABS_MT_TOUCH_MINOR,
1174 				min(contactx, contacty));
1175 			input_report_abs(sc->touchpad, ABS_MT_ORIENTATION,
1176 				(bool) (contactx > contacty));
1177 			input_report_abs(sc->touchpad, ABS_MT_POSITION_X, x);
1178 			input_report_abs(sc->touchpad, ABS_MT_POSITION_Y,
1179 				NSG_MRXU_MAX_Y - y);
1180 			/*
1181 			 * The relative coordinates belong to the first touch
1182 			 * point, when present, or to the second touch point
1183 			 * when the first is not active.
1184 			 */
1185 			if ((n == 0) || ((n == 1) && (active & 0x01))) {
1186 				input_report_rel(sc->touchpad, REL_X, relx);
1187 				input_report_rel(sc->touchpad, REL_Y, rely);
1188 			}
1189 		}
1190 
1191 		offset += 5;
1192 		active >>= 2;
1193 	}
1194 
1195 	input_mt_sync_frame(sc->touchpad);
1196 
1197 	input_sync(sc->touchpad);
1198 }
1199 
1200 static int sony_raw_event(struct hid_device *hdev, struct hid_report *report,
1201 		u8 *rd, int size)
1202 {
1203 	struct sony_sc *sc = hid_get_drvdata(hdev);
1204 
1205 	/*
1206 	 * Sixaxis HID report has acclerometers/gyro with MSByte first, this
1207 	 * has to be BYTE_SWAPPED before passing up to joystick interface
1208 	 */
1209 	if ((sc->quirks & SIXAXIS_CONTROLLER) && rd[0] == 0x01 && size == 49) {
1210 		/*
1211 		 * When connected via Bluetooth the Sixaxis occasionally sends
1212 		 * a report with the second byte 0xff and the rest zeroed.
1213 		 *
1214 		 * This report does not reflect the actual state of the
1215 		 * controller must be ignored to avoid generating false input
1216 		 * events.
1217 		 */
1218 		if (rd[1] == 0xff)
1219 			return -EINVAL;
1220 
1221 		swap(rd[41], rd[42]);
1222 		swap(rd[43], rd[44]);
1223 		swap(rd[45], rd[46]);
1224 		swap(rd[47], rd[48]);
1225 
1226 		sixaxis_parse_report(sc, rd, size);
1227 	} else if ((sc->quirks & MOTION_CONTROLLER_BT) && rd[0] == 0x01 && size == 49) {
1228 		sixaxis_parse_report(sc, rd, size);
1229 	} else if ((sc->quirks & NAVIGATION_CONTROLLER) && rd[0] == 0x01 &&
1230 			size == 49) {
1231 		sixaxis_parse_report(sc, rd, size);
1232 	} else if ((sc->quirks & DUALSHOCK4_CONTROLLER_USB) && rd[0] == 0x01 &&
1233 			size == 64) {
1234 		dualshock4_parse_report(sc, rd, size);
1235 	} else if (((sc->quirks & DUALSHOCK4_CONTROLLER_BT) && rd[0] == 0x11 &&
1236 			size == 78)) {
1237 		/* CRC check */
1238 		u8 bthdr = 0xA1;
1239 		u32 crc;
1240 		u32 report_crc;
1241 
1242 		crc = crc32_le(0xFFFFFFFF, &bthdr, 1);
1243 		crc = ~crc32_le(crc, rd, DS4_INPUT_REPORT_0x11_SIZE-4);
1244 		report_crc = get_unaligned_le32(&rd[DS4_INPUT_REPORT_0x11_SIZE-4]);
1245 		if (crc != report_crc) {
1246 			hid_dbg(sc->hdev, "DualShock 4 input report's CRC check failed, received crc 0x%0x != 0x%0x\n",
1247 				report_crc, crc);
1248 			return -EILSEQ;
1249 		}
1250 
1251 		dualshock4_parse_report(sc, rd, size);
1252 	} else if ((sc->quirks & DUALSHOCK4_DONGLE) && rd[0] == 0x01 &&
1253 			size == 64) {
1254 		unsigned long flags;
1255 		enum ds4_dongle_state dongle_state;
1256 
1257 		/*
1258 		 * In the case of a DS4 USB dongle, bit[2] of byte 31 indicates
1259 		 * if a DS4 is actually connected (indicated by '0').
1260 		 * For non-dongle, this bit is always 0 (connected).
1261 		 */
1262 		bool connected = (rd[31] & 0x04) ? false : true;
1263 
1264 		spin_lock_irqsave(&sc->lock, flags);
1265 		dongle_state = sc->ds4_dongle_state;
1266 		spin_unlock_irqrestore(&sc->lock, flags);
1267 
1268 		/*
1269 		 * The dongle always sends input reports even when no
1270 		 * DS4 is attached. When a DS4 is connected, we need to
1271 		 * obtain calibration data before we can use it.
1272 		 * The code below tracks dongle state and kicks of
1273 		 * calibration when needed and only allows us to process
1274 		 * input if a DS4 is actually connected.
1275 		 */
1276 		if (dongle_state == DONGLE_DISCONNECTED && connected) {
1277 			hid_info(sc->hdev, "DualShock 4 USB dongle: controller connected\n");
1278 			sony_set_leds(sc);
1279 
1280 			spin_lock_irqsave(&sc->lock, flags);
1281 			sc->ds4_dongle_state = DONGLE_CALIBRATING;
1282 			spin_unlock_irqrestore(&sc->lock, flags);
1283 
1284 			sony_schedule_work(sc, SONY_WORKER_HOTPLUG);
1285 
1286 			/* Don't process the report since we don't have
1287 			 * calibration data, but let hidraw have it anyway.
1288 			 */
1289 			return 0;
1290 		} else if ((dongle_state == DONGLE_CONNECTED ||
1291 			    dongle_state == DONGLE_DISABLED) && !connected) {
1292 			hid_info(sc->hdev, "DualShock 4 USB dongle: controller disconnected\n");
1293 
1294 			spin_lock_irqsave(&sc->lock, flags);
1295 			sc->ds4_dongle_state = DONGLE_DISCONNECTED;
1296 			spin_unlock_irqrestore(&sc->lock, flags);
1297 
1298 			/* Return 0, so hidraw can get the report. */
1299 			return 0;
1300 		} else if (dongle_state == DONGLE_CALIBRATING ||
1301 			   dongle_state == DONGLE_DISABLED ||
1302 			   dongle_state == DONGLE_DISCONNECTED) {
1303 			/* Return 0, so hidraw can get the report. */
1304 			return 0;
1305 		}
1306 
1307 		dualshock4_parse_report(sc, rd, size);
1308 
1309 	} else if ((sc->quirks & NSG_MRXU_REMOTE) && rd[0] == 0x02) {
1310 		nsg_mrxu_parse_report(sc, rd, size);
1311 		return 1;
1312 	}
1313 
1314 	if (sc->defer_initialization) {
1315 		sc->defer_initialization = 0;
1316 		sony_schedule_work(sc, SONY_WORKER_STATE);
1317 	}
1318 
1319 	return 0;
1320 }
1321 
1322 static int sony_mapping(struct hid_device *hdev, struct hid_input *hi,
1323 			struct hid_field *field, struct hid_usage *usage,
1324 			unsigned long **bit, int *max)
1325 {
1326 	struct sony_sc *sc = hid_get_drvdata(hdev);
1327 
1328 	if (sc->quirks & BUZZ_CONTROLLER) {
1329 		unsigned int key = usage->hid & HID_USAGE;
1330 
1331 		if ((usage->hid & HID_USAGE_PAGE) != HID_UP_BUTTON)
1332 			return -1;
1333 
1334 		switch (usage->collection_index) {
1335 		case 1:
1336 			if (key >= ARRAY_SIZE(buzz_keymap))
1337 				return -1;
1338 
1339 			key = buzz_keymap[key];
1340 			if (!key)
1341 				return -1;
1342 			break;
1343 		default:
1344 			return -1;
1345 		}
1346 
1347 		hid_map_usage_clear(hi, usage, bit, max, EV_KEY, key);
1348 		return 1;
1349 	}
1350 
1351 	if (sc->quirks & PS3REMOTE)
1352 		return ps3remote_mapping(hdev, hi, field, usage, bit, max);
1353 
1354 	if (sc->quirks & NAVIGATION_CONTROLLER)
1355 		return navigation_mapping(hdev, hi, field, usage, bit, max);
1356 
1357 	if (sc->quirks & SIXAXIS_CONTROLLER)
1358 		return sixaxis_mapping(hdev, hi, field, usage, bit, max);
1359 
1360 	if (sc->quirks & DUALSHOCK4_CONTROLLER)
1361 		return ds4_mapping(hdev, hi, field, usage, bit, max);
1362 
1363 
1364 	/* Let hid-core decide for the others */
1365 	return 0;
1366 }
1367 
1368 static int sony_register_touchpad(struct sony_sc *sc, int touch_count,
1369 		int w, int h, int touch_major, int touch_minor, int orientation)
1370 {
1371 	size_t name_sz;
1372 	char *name;
1373 	int ret;
1374 
1375 	sc->touchpad = devm_input_allocate_device(&sc->hdev->dev);
1376 	if (!sc->touchpad)
1377 		return -ENOMEM;
1378 
1379 	input_set_drvdata(sc->touchpad, sc);
1380 	sc->touchpad->dev.parent = &sc->hdev->dev;
1381 	sc->touchpad->phys = sc->hdev->phys;
1382 	sc->touchpad->uniq = sc->hdev->uniq;
1383 	sc->touchpad->id.bustype = sc->hdev->bus;
1384 	sc->touchpad->id.vendor = sc->hdev->vendor;
1385 	sc->touchpad->id.product = sc->hdev->product;
1386 	sc->touchpad->id.version = sc->hdev->version;
1387 
1388 	/* Append a suffix to the controller name as there are various
1389 	 * DS4 compatible non-Sony devices with different names.
1390 	 */
1391 	name_sz = strlen(sc->hdev->name) + sizeof(DS4_TOUCHPAD_SUFFIX);
1392 	name = devm_kzalloc(&sc->hdev->dev, name_sz, GFP_KERNEL);
1393 	if (!name)
1394 		return -ENOMEM;
1395 	snprintf(name, name_sz, "%s" DS4_TOUCHPAD_SUFFIX, sc->hdev->name);
1396 	sc->touchpad->name = name;
1397 
1398 	/* We map the button underneath the touchpad to BTN_LEFT. */
1399 	__set_bit(EV_KEY, sc->touchpad->evbit);
1400 	__set_bit(BTN_LEFT, sc->touchpad->keybit);
1401 	__set_bit(INPUT_PROP_BUTTONPAD, sc->touchpad->propbit);
1402 
1403 	input_set_abs_params(sc->touchpad, ABS_MT_POSITION_X, 0, w, 0, 0);
1404 	input_set_abs_params(sc->touchpad, ABS_MT_POSITION_Y, 0, h, 0, 0);
1405 
1406 	if (touch_major > 0) {
1407 		input_set_abs_params(sc->touchpad, ABS_MT_TOUCH_MAJOR,
1408 			0, touch_major, 0, 0);
1409 		if (touch_minor > 0)
1410 			input_set_abs_params(sc->touchpad, ABS_MT_TOUCH_MINOR,
1411 				0, touch_minor, 0, 0);
1412 		if (orientation > 0)
1413 			input_set_abs_params(sc->touchpad, ABS_MT_ORIENTATION,
1414 				0, orientation, 0, 0);
1415 	}
1416 
1417 	if (sc->quirks & NSG_MRXU_REMOTE) {
1418 		__set_bit(EV_REL, sc->touchpad->evbit);
1419 	}
1420 
1421 	ret = input_mt_init_slots(sc->touchpad, touch_count, INPUT_MT_POINTER);
1422 	if (ret < 0)
1423 		return ret;
1424 
1425 	ret = input_register_device(sc->touchpad);
1426 	if (ret < 0)
1427 		return ret;
1428 
1429 	return 0;
1430 }
1431 
1432 static int sony_register_sensors(struct sony_sc *sc)
1433 {
1434 	size_t name_sz;
1435 	char *name;
1436 	int ret;
1437 	int range;
1438 
1439 	sc->sensor_dev = devm_input_allocate_device(&sc->hdev->dev);
1440 	if (!sc->sensor_dev)
1441 		return -ENOMEM;
1442 
1443 	input_set_drvdata(sc->sensor_dev, sc);
1444 	sc->sensor_dev->dev.parent = &sc->hdev->dev;
1445 	sc->sensor_dev->phys = sc->hdev->phys;
1446 	sc->sensor_dev->uniq = sc->hdev->uniq;
1447 	sc->sensor_dev->id.bustype = sc->hdev->bus;
1448 	sc->sensor_dev->id.vendor = sc->hdev->vendor;
1449 	sc->sensor_dev->id.product = sc->hdev->product;
1450 	sc->sensor_dev->id.version = sc->hdev->version;
1451 
1452 	/* Append a suffix to the controller name as there are various
1453 	 * DS4 compatible non-Sony devices with different names.
1454 	 */
1455 	name_sz = strlen(sc->hdev->name) + sizeof(SENSOR_SUFFIX);
1456 	name = devm_kzalloc(&sc->hdev->dev, name_sz, GFP_KERNEL);
1457 	if (!name)
1458 		return -ENOMEM;
1459 	snprintf(name, name_sz, "%s" SENSOR_SUFFIX, sc->hdev->name);
1460 	sc->sensor_dev->name = name;
1461 
1462 	if (sc->quirks & SIXAXIS_CONTROLLER) {
1463 		/* For the DS3 we only support the accelerometer, which works
1464 		 * quite well even without calibration. The device also has
1465 		 * a 1-axis gyro, but it is very difficult to manage from within
1466 		 * the driver even to get data, the sensor is inaccurate and
1467 		 * the behavior is very different between hardware revisions.
1468 		 */
1469 		input_set_abs_params(sc->sensor_dev, ABS_X, -512, 511, 4, 0);
1470 		input_set_abs_params(sc->sensor_dev, ABS_Y, -512, 511, 4, 0);
1471 		input_set_abs_params(sc->sensor_dev, ABS_Z, -512, 511, 4, 0);
1472 		input_abs_set_res(sc->sensor_dev, ABS_X, SIXAXIS_ACC_RES_PER_G);
1473 		input_abs_set_res(sc->sensor_dev, ABS_Y, SIXAXIS_ACC_RES_PER_G);
1474 		input_abs_set_res(sc->sensor_dev, ABS_Z, SIXAXIS_ACC_RES_PER_G);
1475 	} else if (sc->quirks & DUALSHOCK4_CONTROLLER) {
1476 		range = DS4_ACC_RES_PER_G*4;
1477 		input_set_abs_params(sc->sensor_dev, ABS_X, -range, range, 16, 0);
1478 		input_set_abs_params(sc->sensor_dev, ABS_Y, -range, range, 16, 0);
1479 		input_set_abs_params(sc->sensor_dev, ABS_Z, -range, range, 16, 0);
1480 		input_abs_set_res(sc->sensor_dev, ABS_X, DS4_ACC_RES_PER_G);
1481 		input_abs_set_res(sc->sensor_dev, ABS_Y, DS4_ACC_RES_PER_G);
1482 		input_abs_set_res(sc->sensor_dev, ABS_Z, DS4_ACC_RES_PER_G);
1483 
1484 		range = DS4_GYRO_RES_PER_DEG_S*2048;
1485 		input_set_abs_params(sc->sensor_dev, ABS_RX, -range, range, 16, 0);
1486 		input_set_abs_params(sc->sensor_dev, ABS_RY, -range, range, 16, 0);
1487 		input_set_abs_params(sc->sensor_dev, ABS_RZ, -range, range, 16, 0);
1488 		input_abs_set_res(sc->sensor_dev, ABS_RX, DS4_GYRO_RES_PER_DEG_S);
1489 		input_abs_set_res(sc->sensor_dev, ABS_RY, DS4_GYRO_RES_PER_DEG_S);
1490 		input_abs_set_res(sc->sensor_dev, ABS_RZ, DS4_GYRO_RES_PER_DEG_S);
1491 
1492 		__set_bit(EV_MSC, sc->sensor_dev->evbit);
1493 		__set_bit(MSC_TIMESTAMP, sc->sensor_dev->mscbit);
1494 	}
1495 
1496 	__set_bit(INPUT_PROP_ACCELEROMETER, sc->sensor_dev->propbit);
1497 
1498 	ret = input_register_device(sc->sensor_dev);
1499 	if (ret < 0)
1500 		return ret;
1501 
1502 	return 0;
1503 }
1504 
1505 /*
1506  * Sending HID_REQ_GET_REPORT changes the operation mode of the ps3 controller
1507  * to "operational".  Without this, the ps3 controller will not report any
1508  * events.
1509  */
1510 static int sixaxis_set_operational_usb(struct hid_device *hdev)
1511 {
1512 	struct sony_sc *sc = hid_get_drvdata(hdev);
1513 	const int buf_size =
1514 		max(SIXAXIS_REPORT_0xF2_SIZE, SIXAXIS_REPORT_0xF5_SIZE);
1515 	u8 *buf;
1516 	int ret;
1517 
1518 	buf = kmalloc(buf_size, GFP_KERNEL);
1519 	if (!buf)
1520 		return -ENOMEM;
1521 
1522 	ret = hid_hw_raw_request(hdev, 0xf2, buf, SIXAXIS_REPORT_0xF2_SIZE,
1523 				 HID_FEATURE_REPORT, HID_REQ_GET_REPORT);
1524 	if (ret < 0) {
1525 		hid_err(hdev, "can't set operational mode: step 1\n");
1526 		goto out;
1527 	}
1528 
1529 	/*
1530 	 * Some compatible controllers like the Speedlink Strike FX and
1531 	 * Gasia need another query plus an USB interrupt to get operational.
1532 	 */
1533 	ret = hid_hw_raw_request(hdev, 0xf5, buf, SIXAXIS_REPORT_0xF5_SIZE,
1534 				 HID_FEATURE_REPORT, HID_REQ_GET_REPORT);
1535 	if (ret < 0) {
1536 		hid_err(hdev, "can't set operational mode: step 2\n");
1537 		goto out;
1538 	}
1539 
1540 	/*
1541 	 * But the USB interrupt would cause SHANWAN controllers to
1542 	 * start rumbling non-stop, so skip step 3 for these controllers.
1543 	 */
1544 	if (sc->quirks & SHANWAN_GAMEPAD)
1545 		goto out;
1546 
1547 	ret = hid_hw_output_report(hdev, buf, 1);
1548 	if (ret < 0) {
1549 		hid_info(hdev, "can't set operational mode: step 3, ignoring\n");
1550 		ret = 0;
1551 	}
1552 
1553 out:
1554 	kfree(buf);
1555 
1556 	return ret;
1557 }
1558 
1559 static int sixaxis_set_operational_bt(struct hid_device *hdev)
1560 {
1561 	static const u8 report[] = { 0xf4, 0x42, 0x03, 0x00, 0x00 };
1562 	u8 *buf;
1563 	int ret;
1564 
1565 	buf = kmemdup(report, sizeof(report), GFP_KERNEL);
1566 	if (!buf)
1567 		return -ENOMEM;
1568 
1569 	ret = hid_hw_raw_request(hdev, buf[0], buf, sizeof(report),
1570 				  HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
1571 
1572 	kfree(buf);
1573 
1574 	return ret;
1575 }
1576 
1577 /*
1578  * Request DS4 calibration data for the motion sensors.
1579  * For Bluetooth this also affects the operating mode (see below).
1580  */
1581 static int dualshock4_get_calibration_data(struct sony_sc *sc)
1582 {
1583 	u8 *buf;
1584 	int ret;
1585 	short gyro_pitch_bias, gyro_pitch_plus, gyro_pitch_minus;
1586 	short gyro_yaw_bias, gyro_yaw_plus, gyro_yaw_minus;
1587 	short gyro_roll_bias, gyro_roll_plus, gyro_roll_minus;
1588 	short gyro_speed_plus, gyro_speed_minus;
1589 	short acc_x_plus, acc_x_minus;
1590 	short acc_y_plus, acc_y_minus;
1591 	short acc_z_plus, acc_z_minus;
1592 	int speed_2x;
1593 	int range_2g;
1594 
1595 	/* For Bluetooth we use a different request, which supports CRC.
1596 	 * Note: in Bluetooth mode feature report 0x02 also changes the state
1597 	 * of the controller, so that it sends input reports of type 0x11.
1598 	 */
1599 	if (sc->quirks & (DUALSHOCK4_CONTROLLER_USB | DUALSHOCK4_DONGLE)) {
1600 		buf = kmalloc(DS4_FEATURE_REPORT_0x02_SIZE, GFP_KERNEL);
1601 		if (!buf)
1602 			return -ENOMEM;
1603 
1604 		ret = hid_hw_raw_request(sc->hdev, 0x02, buf,
1605 					 DS4_FEATURE_REPORT_0x02_SIZE,
1606 					 HID_FEATURE_REPORT,
1607 					 HID_REQ_GET_REPORT);
1608 		if (ret < 0)
1609 			goto err_stop;
1610 	} else {
1611 		u8 bthdr = 0xA3;
1612 		u32 crc;
1613 		u32 report_crc;
1614 		int retries;
1615 
1616 		buf = kmalloc(DS4_FEATURE_REPORT_0x05_SIZE, GFP_KERNEL);
1617 		if (!buf)
1618 			return -ENOMEM;
1619 
1620 		for (retries = 0; retries < 3; retries++) {
1621 			ret = hid_hw_raw_request(sc->hdev, 0x05, buf,
1622 						 DS4_FEATURE_REPORT_0x05_SIZE,
1623 						 HID_FEATURE_REPORT,
1624 						 HID_REQ_GET_REPORT);
1625 			if (ret < 0)
1626 				goto err_stop;
1627 
1628 			/* CRC check */
1629 			crc = crc32_le(0xFFFFFFFF, &bthdr, 1);
1630 			crc = ~crc32_le(crc, buf, DS4_FEATURE_REPORT_0x05_SIZE-4);
1631 			report_crc = get_unaligned_le32(&buf[DS4_FEATURE_REPORT_0x05_SIZE-4]);
1632 			if (crc != report_crc) {
1633 				hid_warn(sc->hdev, "DualShock 4 calibration report's CRC check failed, received crc 0x%0x != 0x%0x\n",
1634 					report_crc, crc);
1635 				if (retries < 2) {
1636 					hid_warn(sc->hdev, "Retrying DualShock 4 get calibration report request\n");
1637 					continue;
1638 				} else {
1639 					ret = -EILSEQ;
1640 					goto err_stop;
1641 				}
1642 			} else {
1643 				break;
1644 			}
1645 		}
1646 	}
1647 
1648 	gyro_pitch_bias  = get_unaligned_le16(&buf[1]);
1649 	gyro_yaw_bias    = get_unaligned_le16(&buf[3]);
1650 	gyro_roll_bias   = get_unaligned_le16(&buf[5]);
1651 	if (sc->quirks & DUALSHOCK4_CONTROLLER_USB) {
1652 		gyro_pitch_plus  = get_unaligned_le16(&buf[7]);
1653 		gyro_pitch_minus = get_unaligned_le16(&buf[9]);
1654 		gyro_yaw_plus    = get_unaligned_le16(&buf[11]);
1655 		gyro_yaw_minus   = get_unaligned_le16(&buf[13]);
1656 		gyro_roll_plus   = get_unaligned_le16(&buf[15]);
1657 		gyro_roll_minus  = get_unaligned_le16(&buf[17]);
1658 	} else {
1659 		/* BT + Dongle */
1660 		gyro_pitch_plus  = get_unaligned_le16(&buf[7]);
1661 		gyro_yaw_plus    = get_unaligned_le16(&buf[9]);
1662 		gyro_roll_plus   = get_unaligned_le16(&buf[11]);
1663 		gyro_pitch_minus = get_unaligned_le16(&buf[13]);
1664 		gyro_yaw_minus   = get_unaligned_le16(&buf[15]);
1665 		gyro_roll_minus  = get_unaligned_le16(&buf[17]);
1666 	}
1667 	gyro_speed_plus  = get_unaligned_le16(&buf[19]);
1668 	gyro_speed_minus = get_unaligned_le16(&buf[21]);
1669 	acc_x_plus       = get_unaligned_le16(&buf[23]);
1670 	acc_x_minus      = get_unaligned_le16(&buf[25]);
1671 	acc_y_plus       = get_unaligned_le16(&buf[27]);
1672 	acc_y_minus      = get_unaligned_le16(&buf[29]);
1673 	acc_z_plus       = get_unaligned_le16(&buf[31]);
1674 	acc_z_minus      = get_unaligned_le16(&buf[33]);
1675 
1676 	/* Set gyroscope calibration and normalization parameters.
1677 	 * Data values will be normalized to 1/DS4_GYRO_RES_PER_DEG_S degree/s.
1678 	 */
1679 	speed_2x = (gyro_speed_plus + gyro_speed_minus);
1680 	sc->ds4_calib_data[0].abs_code = ABS_RX;
1681 	sc->ds4_calib_data[0].bias = gyro_pitch_bias;
1682 	sc->ds4_calib_data[0].sens_numer = speed_2x*DS4_GYRO_RES_PER_DEG_S;
1683 	sc->ds4_calib_data[0].sens_denom = gyro_pitch_plus - gyro_pitch_minus;
1684 
1685 	sc->ds4_calib_data[1].abs_code = ABS_RY;
1686 	sc->ds4_calib_data[1].bias = gyro_yaw_bias;
1687 	sc->ds4_calib_data[1].sens_numer = speed_2x*DS4_GYRO_RES_PER_DEG_S;
1688 	sc->ds4_calib_data[1].sens_denom = gyro_yaw_plus - gyro_yaw_minus;
1689 
1690 	sc->ds4_calib_data[2].abs_code = ABS_RZ;
1691 	sc->ds4_calib_data[2].bias = gyro_roll_bias;
1692 	sc->ds4_calib_data[2].sens_numer = speed_2x*DS4_GYRO_RES_PER_DEG_S;
1693 	sc->ds4_calib_data[2].sens_denom = gyro_roll_plus - gyro_roll_minus;
1694 
1695 	/* Set accelerometer calibration and normalization parameters.
1696 	 * Data values will be normalized to 1/DS4_ACC_RES_PER_G G.
1697 	 */
1698 	range_2g = acc_x_plus - acc_x_minus;
1699 	sc->ds4_calib_data[3].abs_code = ABS_X;
1700 	sc->ds4_calib_data[3].bias = acc_x_plus - range_2g / 2;
1701 	sc->ds4_calib_data[3].sens_numer = 2*DS4_ACC_RES_PER_G;
1702 	sc->ds4_calib_data[3].sens_denom = range_2g;
1703 
1704 	range_2g = acc_y_plus - acc_y_minus;
1705 	sc->ds4_calib_data[4].abs_code = ABS_Y;
1706 	sc->ds4_calib_data[4].bias = acc_y_plus - range_2g / 2;
1707 	sc->ds4_calib_data[4].sens_numer = 2*DS4_ACC_RES_PER_G;
1708 	sc->ds4_calib_data[4].sens_denom = range_2g;
1709 
1710 	range_2g = acc_z_plus - acc_z_minus;
1711 	sc->ds4_calib_data[5].abs_code = ABS_Z;
1712 	sc->ds4_calib_data[5].bias = acc_z_plus - range_2g / 2;
1713 	sc->ds4_calib_data[5].sens_numer = 2*DS4_ACC_RES_PER_G;
1714 	sc->ds4_calib_data[5].sens_denom = range_2g;
1715 
1716 err_stop:
1717 	kfree(buf);
1718 	return ret;
1719 }
1720 
1721 static void dualshock4_calibration_work(struct work_struct *work)
1722 {
1723 	struct sony_sc *sc = container_of(work, struct sony_sc, hotplug_worker);
1724 	unsigned long flags;
1725 	enum ds4_dongle_state dongle_state;
1726 	int ret;
1727 
1728 	ret = dualshock4_get_calibration_data(sc);
1729 	if (ret < 0) {
1730 		/* This call is very unlikely to fail for the dongle. When it
1731 		 * fails we are probably in a very bad state, so mark the
1732 		 * dongle as disabled. We will re-enable the dongle if a new
1733 		 * DS4 hotplug is detect from sony_raw_event as any issues
1734 		 * are likely resolved then (the dongle is quite stupid).
1735 		 */
1736 		hid_err(sc->hdev, "DualShock 4 USB dongle: calibration failed, disabling device\n");
1737 		dongle_state = DONGLE_DISABLED;
1738 	} else {
1739 		hid_info(sc->hdev, "DualShock 4 USB dongle: calibration completed\n");
1740 		dongle_state = DONGLE_CONNECTED;
1741 	}
1742 
1743 	spin_lock_irqsave(&sc->lock, flags);
1744 	sc->ds4_dongle_state = dongle_state;
1745 	spin_unlock_irqrestore(&sc->lock, flags);
1746 }
1747 
1748 static int dualshock4_get_version_info(struct sony_sc *sc)
1749 {
1750 	u8 *buf;
1751 	int ret;
1752 
1753 	buf = kmalloc(DS4_FEATURE_REPORT_0xA3_SIZE, GFP_KERNEL);
1754 	if (!buf)
1755 		return -ENOMEM;
1756 
1757 	ret = hid_hw_raw_request(sc->hdev, 0xA3, buf,
1758 				 DS4_FEATURE_REPORT_0xA3_SIZE,
1759 				 HID_FEATURE_REPORT,
1760 				 HID_REQ_GET_REPORT);
1761 	if (ret < 0) {
1762 		kfree(buf);
1763 		return ret;
1764 	}
1765 
1766 	sc->hw_version = get_unaligned_le16(&buf[35]);
1767 	sc->fw_version = get_unaligned_le16(&buf[41]);
1768 
1769 	kfree(buf);
1770 	return 0;
1771 }
1772 
1773 static void sixaxis_set_leds_from_id(struct sony_sc *sc)
1774 {
1775 	static const u8 sixaxis_leds[10][4] = {
1776 				{ 0x01, 0x00, 0x00, 0x00 },
1777 				{ 0x00, 0x01, 0x00, 0x00 },
1778 				{ 0x00, 0x00, 0x01, 0x00 },
1779 				{ 0x00, 0x00, 0x00, 0x01 },
1780 				{ 0x01, 0x00, 0x00, 0x01 },
1781 				{ 0x00, 0x01, 0x00, 0x01 },
1782 				{ 0x00, 0x00, 0x01, 0x01 },
1783 				{ 0x01, 0x00, 0x01, 0x01 },
1784 				{ 0x00, 0x01, 0x01, 0x01 },
1785 				{ 0x01, 0x01, 0x01, 0x01 }
1786 	};
1787 
1788 	int id = sc->device_id;
1789 
1790 	BUILD_BUG_ON(MAX_LEDS < ARRAY_SIZE(sixaxis_leds[0]));
1791 
1792 	if (id < 0)
1793 		return;
1794 
1795 	id %= 10;
1796 	memcpy(sc->led_state, sixaxis_leds[id], sizeof(sixaxis_leds[id]));
1797 }
1798 
1799 static void dualshock4_set_leds_from_id(struct sony_sc *sc)
1800 {
1801 	/* The first 4 color/index entries match what the PS4 assigns */
1802 	static const u8 color_code[7][3] = {
1803 			/* Blue   */	{ 0x00, 0x00, 0x40 },
1804 			/* Red	  */	{ 0x40, 0x00, 0x00 },
1805 			/* Green  */	{ 0x00, 0x40, 0x00 },
1806 			/* Pink   */	{ 0x20, 0x00, 0x20 },
1807 			/* Orange */	{ 0x02, 0x01, 0x00 },
1808 			/* Teal   */	{ 0x00, 0x01, 0x01 },
1809 			/* White  */	{ 0x01, 0x01, 0x01 }
1810 	};
1811 
1812 	int id = sc->device_id;
1813 
1814 	BUILD_BUG_ON(MAX_LEDS < ARRAY_SIZE(color_code[0]));
1815 
1816 	if (id < 0)
1817 		return;
1818 
1819 	id %= 7;
1820 	memcpy(sc->led_state, color_code[id], sizeof(color_code[id]));
1821 }
1822 
1823 static void buzz_set_leds(struct sony_sc *sc)
1824 {
1825 	struct hid_device *hdev = sc->hdev;
1826 	struct list_head *report_list =
1827 		&hdev->report_enum[HID_OUTPUT_REPORT].report_list;
1828 	struct hid_report *report = list_entry(report_list->next,
1829 		struct hid_report, list);
1830 	s32 *value = report->field[0]->value;
1831 
1832 	BUILD_BUG_ON(MAX_LEDS < 4);
1833 
1834 	value[0] = 0x00;
1835 	value[1] = sc->led_state[0] ? 0xff : 0x00;
1836 	value[2] = sc->led_state[1] ? 0xff : 0x00;
1837 	value[3] = sc->led_state[2] ? 0xff : 0x00;
1838 	value[4] = sc->led_state[3] ? 0xff : 0x00;
1839 	value[5] = 0x00;
1840 	value[6] = 0x00;
1841 	hid_hw_request(hdev, report, HID_REQ_SET_REPORT);
1842 }
1843 
1844 static void sony_set_leds(struct sony_sc *sc)
1845 {
1846 	if (!(sc->quirks & BUZZ_CONTROLLER))
1847 		sony_schedule_work(sc, SONY_WORKER_STATE);
1848 	else
1849 		buzz_set_leds(sc);
1850 }
1851 
1852 static void sony_led_set_brightness(struct led_classdev *led,
1853 				    enum led_brightness value)
1854 {
1855 	struct device *dev = led->dev->parent;
1856 	struct hid_device *hdev = to_hid_device(dev);
1857 	struct sony_sc *drv_data;
1858 
1859 	int n;
1860 	int force_update;
1861 
1862 	drv_data = hid_get_drvdata(hdev);
1863 	if (!drv_data) {
1864 		hid_err(hdev, "No device data\n");
1865 		return;
1866 	}
1867 
1868 	/*
1869 	 * The Sixaxis on USB will override any LED settings sent to it
1870 	 * and keep flashing all of the LEDs until the PS button is pressed.
1871 	 * Updates, even if redundant, must be always be sent to the
1872 	 * controller to avoid having to toggle the state of an LED just to
1873 	 * stop the flashing later on.
1874 	 */
1875 	force_update = !!(drv_data->quirks & SIXAXIS_CONTROLLER_USB);
1876 
1877 	for (n = 0; n < drv_data->led_count; n++) {
1878 		if (led == drv_data->leds[n] && (force_update ||
1879 			(value != drv_data->led_state[n] ||
1880 			drv_data->led_delay_on[n] ||
1881 			drv_data->led_delay_off[n]))) {
1882 
1883 			drv_data->led_state[n] = value;
1884 
1885 			/* Setting the brightness stops the blinking */
1886 			drv_data->led_delay_on[n] = 0;
1887 			drv_data->led_delay_off[n] = 0;
1888 
1889 			sony_set_leds(drv_data);
1890 			break;
1891 		}
1892 	}
1893 }
1894 
1895 static enum led_brightness sony_led_get_brightness(struct led_classdev *led)
1896 {
1897 	struct device *dev = led->dev->parent;
1898 	struct hid_device *hdev = to_hid_device(dev);
1899 	struct sony_sc *drv_data;
1900 
1901 	int n;
1902 
1903 	drv_data = hid_get_drvdata(hdev);
1904 	if (!drv_data) {
1905 		hid_err(hdev, "No device data\n");
1906 		return LED_OFF;
1907 	}
1908 
1909 	for (n = 0; n < drv_data->led_count; n++) {
1910 		if (led == drv_data->leds[n])
1911 			return drv_data->led_state[n];
1912 	}
1913 
1914 	return LED_OFF;
1915 }
1916 
1917 static int sony_led_blink_set(struct led_classdev *led, unsigned long *delay_on,
1918 				unsigned long *delay_off)
1919 {
1920 	struct device *dev = led->dev->parent;
1921 	struct hid_device *hdev = to_hid_device(dev);
1922 	struct sony_sc *drv_data = hid_get_drvdata(hdev);
1923 	int n;
1924 	u8 new_on, new_off;
1925 
1926 	if (!drv_data) {
1927 		hid_err(hdev, "No device data\n");
1928 		return -EINVAL;
1929 	}
1930 
1931 	/* Max delay is 255 deciseconds or 2550 milliseconds */
1932 	if (*delay_on > 2550)
1933 		*delay_on = 2550;
1934 	if (*delay_off > 2550)
1935 		*delay_off = 2550;
1936 
1937 	/* Blink at 1 Hz if both values are zero */
1938 	if (!*delay_on && !*delay_off)
1939 		*delay_on = *delay_off = 500;
1940 
1941 	new_on = *delay_on / 10;
1942 	new_off = *delay_off / 10;
1943 
1944 	for (n = 0; n < drv_data->led_count; n++) {
1945 		if (led == drv_data->leds[n])
1946 			break;
1947 	}
1948 
1949 	/* This LED is not registered on this device */
1950 	if (n >= drv_data->led_count)
1951 		return -EINVAL;
1952 
1953 	/* Don't schedule work if the values didn't change */
1954 	if (new_on != drv_data->led_delay_on[n] ||
1955 		new_off != drv_data->led_delay_off[n]) {
1956 		drv_data->led_delay_on[n] = new_on;
1957 		drv_data->led_delay_off[n] = new_off;
1958 		sony_schedule_work(drv_data, SONY_WORKER_STATE);
1959 	}
1960 
1961 	return 0;
1962 }
1963 
1964 static int sony_leds_init(struct sony_sc *sc)
1965 {
1966 	struct hid_device *hdev = sc->hdev;
1967 	int n, ret = 0;
1968 	int use_ds4_names;
1969 	struct led_classdev *led;
1970 	size_t name_sz;
1971 	char *name;
1972 	size_t name_len;
1973 	const char *name_fmt;
1974 	static const char * const ds4_name_str[] = { "red", "green", "blue",
1975 						  "global" };
1976 	u8 max_brightness[MAX_LEDS] = { [0 ... (MAX_LEDS - 1)] = 1 };
1977 	u8 use_hw_blink[MAX_LEDS] = { 0 };
1978 
1979 	BUG_ON(!(sc->quirks & SONY_LED_SUPPORT));
1980 
1981 	if (sc->quirks & BUZZ_CONTROLLER) {
1982 		sc->led_count = 4;
1983 		use_ds4_names = 0;
1984 		name_len = strlen("::buzz#");
1985 		name_fmt = "%s::buzz%d";
1986 		/* Validate expected report characteristics. */
1987 		if (!hid_validate_values(hdev, HID_OUTPUT_REPORT, 0, 0, 7))
1988 			return -ENODEV;
1989 	} else if (sc->quirks & DUALSHOCK4_CONTROLLER) {
1990 		dualshock4_set_leds_from_id(sc);
1991 		sc->led_state[3] = 1;
1992 		sc->led_count = 4;
1993 		memset(max_brightness, 255, 3);
1994 		use_hw_blink[3] = 1;
1995 		use_ds4_names = 1;
1996 		name_len = 0;
1997 		name_fmt = "%s:%s";
1998 	} else if (sc->quirks & MOTION_CONTROLLER) {
1999 		sc->led_count = 3;
2000 		memset(max_brightness, 255, 3);
2001 		use_ds4_names = 1;
2002 		name_len = 0;
2003 		name_fmt = "%s:%s";
2004 	} else if (sc->quirks & NAVIGATION_CONTROLLER) {
2005 		static const u8 navigation_leds[4] = {0x01, 0x00, 0x00, 0x00};
2006 
2007 		memcpy(sc->led_state, navigation_leds, sizeof(navigation_leds));
2008 		sc->led_count = 1;
2009 		memset(use_hw_blink, 1, 4);
2010 		use_ds4_names = 0;
2011 		name_len = strlen("::sony#");
2012 		name_fmt = "%s::sony%d";
2013 	} else {
2014 		sixaxis_set_leds_from_id(sc);
2015 		sc->led_count = 4;
2016 		memset(use_hw_blink, 1, 4);
2017 		use_ds4_names = 0;
2018 		name_len = strlen("::sony#");
2019 		name_fmt = "%s::sony%d";
2020 	}
2021 
2022 	/*
2023 	 * Clear LEDs as we have no way of reading their initial state. This is
2024 	 * only relevant if the driver is loaded after somebody actively set the
2025 	 * LEDs to on
2026 	 */
2027 	sony_set_leds(sc);
2028 
2029 	name_sz = strlen(dev_name(&hdev->dev)) + name_len + 1;
2030 
2031 	for (n = 0; n < sc->led_count; n++) {
2032 
2033 		if (use_ds4_names)
2034 			name_sz = strlen(dev_name(&hdev->dev)) + strlen(ds4_name_str[n]) + 2;
2035 
2036 		led = devm_kzalloc(&hdev->dev, sizeof(struct led_classdev) + name_sz, GFP_KERNEL);
2037 		if (!led) {
2038 			hid_err(hdev, "Couldn't allocate memory for LED %d\n", n);
2039 			return -ENOMEM;
2040 		}
2041 
2042 		name = (void *)(&led[1]);
2043 		if (use_ds4_names)
2044 			snprintf(name, name_sz, name_fmt, dev_name(&hdev->dev),
2045 			ds4_name_str[n]);
2046 		else
2047 			snprintf(name, name_sz, name_fmt, dev_name(&hdev->dev), n + 1);
2048 		led->name = name;
2049 		led->brightness = sc->led_state[n];
2050 		led->max_brightness = max_brightness[n];
2051 		led->flags = LED_CORE_SUSPENDRESUME;
2052 		led->brightness_get = sony_led_get_brightness;
2053 		led->brightness_set = sony_led_set_brightness;
2054 
2055 		if (use_hw_blink[n])
2056 			led->blink_set = sony_led_blink_set;
2057 
2058 		sc->leds[n] = led;
2059 
2060 		ret = devm_led_classdev_register(&hdev->dev, led);
2061 		if (ret) {
2062 			hid_err(hdev, "Failed to register LED %d\n", n);
2063 			return ret;
2064 		}
2065 	}
2066 
2067 	return 0;
2068 }
2069 
2070 static void sixaxis_send_output_report(struct sony_sc *sc)
2071 {
2072 	static const union sixaxis_output_report_01 default_report = {
2073 		.buf = {
2074 			0x01,
2075 			0x01, 0xff, 0x00, 0xff, 0x00,
2076 			0x00, 0x00, 0x00, 0x00, 0x00,
2077 			0xff, 0x27, 0x10, 0x00, 0x32,
2078 			0xff, 0x27, 0x10, 0x00, 0x32,
2079 			0xff, 0x27, 0x10, 0x00, 0x32,
2080 			0xff, 0x27, 0x10, 0x00, 0x32,
2081 			0x00, 0x00, 0x00, 0x00, 0x00
2082 		}
2083 	};
2084 	struct sixaxis_output_report *report =
2085 		(struct sixaxis_output_report *)sc->output_report_dmabuf;
2086 	int n;
2087 
2088 	/* Initialize the report with default values */
2089 	memcpy(report, &default_report, sizeof(struct sixaxis_output_report));
2090 
2091 #ifdef CONFIG_SONY_FF
2092 	report->rumble.right_motor_on = sc->right ? 1 : 0;
2093 	report->rumble.left_motor_force = sc->left;
2094 #endif
2095 
2096 	report->leds_bitmap |= sc->led_state[0] << 1;
2097 	report->leds_bitmap |= sc->led_state[1] << 2;
2098 	report->leds_bitmap |= sc->led_state[2] << 3;
2099 	report->leds_bitmap |= sc->led_state[3] << 4;
2100 
2101 	/* Set flag for all leds off, required for 3rd party INTEC controller */
2102 	if ((report->leds_bitmap & 0x1E) == 0)
2103 		report->leds_bitmap |= 0x20;
2104 
2105 	/*
2106 	 * The LEDs in the report are indexed in reverse order to their
2107 	 * corresponding light on the controller.
2108 	 * Index 0 = LED 4, index 1 = LED 3, etc...
2109 	 *
2110 	 * In the case of both delay values being zero (blinking disabled) the
2111 	 * default report values should be used or the controller LED will be
2112 	 * always off.
2113 	 */
2114 	for (n = 0; n < 4; n++) {
2115 		if (sc->led_delay_on[n] || sc->led_delay_off[n]) {
2116 			report->led[3 - n].duty_off = sc->led_delay_off[n];
2117 			report->led[3 - n].duty_on = sc->led_delay_on[n];
2118 		}
2119 	}
2120 
2121 	/* SHANWAN controllers require output reports via intr channel */
2122 	if (sc->quirks & SHANWAN_GAMEPAD)
2123 		hid_hw_output_report(sc->hdev, (u8 *)report,
2124 				sizeof(struct sixaxis_output_report));
2125 	else
2126 		hid_hw_raw_request(sc->hdev, report->report_id, (u8 *)report,
2127 				sizeof(struct sixaxis_output_report),
2128 				HID_OUTPUT_REPORT, HID_REQ_SET_REPORT);
2129 }
2130 
2131 static void dualshock4_send_output_report(struct sony_sc *sc)
2132 {
2133 	struct hid_device *hdev = sc->hdev;
2134 	u8 *buf = sc->output_report_dmabuf;
2135 	int offset;
2136 
2137 	/*
2138 	 * NOTE: The lower 6 bits of buf[1] field of the Bluetooth report
2139 	 * control the interval at which Dualshock 4 reports data:
2140 	 * 0x00 - 1ms
2141 	 * 0x01 - 1ms
2142 	 * 0x02 - 2ms
2143 	 * 0x3E - 62ms
2144 	 * 0x3F - disabled
2145 	 */
2146 	if (sc->quirks & (DUALSHOCK4_CONTROLLER_USB | DUALSHOCK4_DONGLE)) {
2147 		memset(buf, 0, DS4_OUTPUT_REPORT_0x05_SIZE);
2148 		buf[0] = 0x05;
2149 		buf[1] = 0x07; /* blink + LEDs + motor */
2150 		offset = 4;
2151 	} else {
2152 		memset(buf, 0, DS4_OUTPUT_REPORT_0x11_SIZE);
2153 		buf[0] = 0x11;
2154 		buf[1] = 0xC0 /* HID + CRC */ | sc->ds4_bt_poll_interval;
2155 		buf[3] = 0x07; /* blink + LEDs + motor */
2156 		offset = 6;
2157 	}
2158 
2159 #ifdef CONFIG_SONY_FF
2160 	buf[offset++] = sc->right;
2161 	buf[offset++] = sc->left;
2162 #else
2163 	offset += 2;
2164 #endif
2165 
2166 	/* LED 3 is the global control */
2167 	if (sc->led_state[3]) {
2168 		buf[offset++] = sc->led_state[0];
2169 		buf[offset++] = sc->led_state[1];
2170 		buf[offset++] = sc->led_state[2];
2171 	} else {
2172 		offset += 3;
2173 	}
2174 
2175 	/* If both delay values are zero the DualShock 4 disables blinking. */
2176 	buf[offset++] = sc->led_delay_on[3];
2177 	buf[offset++] = sc->led_delay_off[3];
2178 
2179 	if (sc->quirks & (DUALSHOCK4_CONTROLLER_USB | DUALSHOCK4_DONGLE))
2180 		hid_hw_output_report(hdev, buf, DS4_OUTPUT_REPORT_0x05_SIZE);
2181 	else {
2182 		/* CRC generation */
2183 		u8 bthdr = 0xA2;
2184 		u32 crc;
2185 
2186 		crc = crc32_le(0xFFFFFFFF, &bthdr, 1);
2187 		crc = ~crc32_le(crc, buf, DS4_OUTPUT_REPORT_0x11_SIZE-4);
2188 		put_unaligned_le32(crc, &buf[74]);
2189 		hid_hw_output_report(hdev, buf, DS4_OUTPUT_REPORT_0x11_SIZE);
2190 	}
2191 }
2192 
2193 static void motion_send_output_report(struct sony_sc *sc)
2194 {
2195 	struct hid_device *hdev = sc->hdev;
2196 	struct motion_output_report_02 *report =
2197 		(struct motion_output_report_02 *)sc->output_report_dmabuf;
2198 
2199 	memset(report, 0, MOTION_REPORT_0x02_SIZE);
2200 
2201 	report->type = 0x02; /* set leds */
2202 	report->r = sc->led_state[0];
2203 	report->g = sc->led_state[1];
2204 	report->b = sc->led_state[2];
2205 
2206 #ifdef CONFIG_SONY_FF
2207 	report->rumble = max(sc->right, sc->left);
2208 #endif
2209 
2210 	hid_hw_output_report(hdev, (u8 *)report, MOTION_REPORT_0x02_SIZE);
2211 }
2212 
2213 static inline void sony_send_output_report(struct sony_sc *sc)
2214 {
2215 	if (sc->send_output_report)
2216 		sc->send_output_report(sc);
2217 }
2218 
2219 static void sony_state_worker(struct work_struct *work)
2220 {
2221 	struct sony_sc *sc = container_of(work, struct sony_sc, state_worker);
2222 
2223 	sc->send_output_report(sc);
2224 }
2225 
2226 static int sony_allocate_output_report(struct sony_sc *sc)
2227 {
2228 	if ((sc->quirks & SIXAXIS_CONTROLLER) ||
2229 			(sc->quirks & NAVIGATION_CONTROLLER))
2230 		sc->output_report_dmabuf =
2231 			devm_kmalloc(&sc->hdev->dev,
2232 				sizeof(union sixaxis_output_report_01),
2233 				GFP_KERNEL);
2234 	else if (sc->quirks & DUALSHOCK4_CONTROLLER_BT)
2235 		sc->output_report_dmabuf = devm_kmalloc(&sc->hdev->dev,
2236 						DS4_OUTPUT_REPORT_0x11_SIZE,
2237 						GFP_KERNEL);
2238 	else if (sc->quirks & (DUALSHOCK4_CONTROLLER_USB | DUALSHOCK4_DONGLE))
2239 		sc->output_report_dmabuf = devm_kmalloc(&sc->hdev->dev,
2240 						DS4_OUTPUT_REPORT_0x05_SIZE,
2241 						GFP_KERNEL);
2242 	else if (sc->quirks & MOTION_CONTROLLER)
2243 		sc->output_report_dmabuf = devm_kmalloc(&sc->hdev->dev,
2244 						MOTION_REPORT_0x02_SIZE,
2245 						GFP_KERNEL);
2246 	else
2247 		return 0;
2248 
2249 	if (!sc->output_report_dmabuf)
2250 		return -ENOMEM;
2251 
2252 	return 0;
2253 }
2254 
2255 #ifdef CONFIG_SONY_FF
2256 static int sony_play_effect(struct input_dev *dev, void *data,
2257 			    struct ff_effect *effect)
2258 {
2259 	struct hid_device *hid = input_get_drvdata(dev);
2260 	struct sony_sc *sc = hid_get_drvdata(hid);
2261 
2262 	if (effect->type != FF_RUMBLE)
2263 		return 0;
2264 
2265 	sc->left = effect->u.rumble.strong_magnitude / 256;
2266 	sc->right = effect->u.rumble.weak_magnitude / 256;
2267 
2268 	sony_schedule_work(sc, SONY_WORKER_STATE);
2269 	return 0;
2270 }
2271 
2272 static int sony_init_ff(struct sony_sc *sc)
2273 {
2274 	struct hid_input *hidinput;
2275 	struct input_dev *input_dev;
2276 
2277 	if (list_empty(&sc->hdev->inputs)) {
2278 		hid_err(sc->hdev, "no inputs found\n");
2279 		return -ENODEV;
2280 	}
2281 	hidinput = list_entry(sc->hdev->inputs.next, struct hid_input, list);
2282 	input_dev = hidinput->input;
2283 
2284 	input_set_capability(input_dev, EV_FF, FF_RUMBLE);
2285 	return input_ff_create_memless(input_dev, NULL, sony_play_effect);
2286 }
2287 
2288 #else
2289 static int sony_init_ff(struct sony_sc *sc)
2290 {
2291 	return 0;
2292 }
2293 
2294 #endif
2295 
2296 static int sony_battery_get_property(struct power_supply *psy,
2297 				     enum power_supply_property psp,
2298 				     union power_supply_propval *val)
2299 {
2300 	struct sony_sc *sc = power_supply_get_drvdata(psy);
2301 	unsigned long flags;
2302 	int ret = 0;
2303 	u8 battery_charging, battery_capacity, cable_state;
2304 
2305 	spin_lock_irqsave(&sc->lock, flags);
2306 	battery_charging = sc->battery_charging;
2307 	battery_capacity = sc->battery_capacity;
2308 	cable_state = sc->cable_state;
2309 	spin_unlock_irqrestore(&sc->lock, flags);
2310 
2311 	switch (psp) {
2312 	case POWER_SUPPLY_PROP_PRESENT:
2313 		val->intval = 1;
2314 		break;
2315 	case POWER_SUPPLY_PROP_SCOPE:
2316 		val->intval = POWER_SUPPLY_SCOPE_DEVICE;
2317 		break;
2318 	case POWER_SUPPLY_PROP_CAPACITY:
2319 		val->intval = battery_capacity;
2320 		break;
2321 	case POWER_SUPPLY_PROP_STATUS:
2322 		if (battery_charging)
2323 			val->intval = POWER_SUPPLY_STATUS_CHARGING;
2324 		else
2325 			if (battery_capacity == 100 && cable_state)
2326 				val->intval = POWER_SUPPLY_STATUS_FULL;
2327 			else
2328 				val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
2329 		break;
2330 	default:
2331 		ret = -EINVAL;
2332 		break;
2333 	}
2334 	return ret;
2335 }
2336 
2337 static int sony_battery_probe(struct sony_sc *sc, int append_dev_id)
2338 {
2339 	const char *battery_str_fmt = append_dev_id ?
2340 		"sony_controller_battery_%pMR_%i" :
2341 		"sony_controller_battery_%pMR";
2342 	struct power_supply_config psy_cfg = { .drv_data = sc, };
2343 	struct hid_device *hdev = sc->hdev;
2344 	int ret;
2345 
2346 	/*
2347 	 * Set the default battery level to 100% to avoid low battery warnings
2348 	 * if the battery is polled before the first device report is received.
2349 	 */
2350 	sc->battery_capacity = 100;
2351 
2352 	sc->battery_desc.properties = sony_battery_props;
2353 	sc->battery_desc.num_properties = ARRAY_SIZE(sony_battery_props);
2354 	sc->battery_desc.get_property = sony_battery_get_property;
2355 	sc->battery_desc.type = POWER_SUPPLY_TYPE_BATTERY;
2356 	sc->battery_desc.use_for_apm = 0;
2357 	sc->battery_desc.name = devm_kasprintf(&hdev->dev, GFP_KERNEL,
2358 					  battery_str_fmt, sc->mac_address, sc->device_id);
2359 	if (!sc->battery_desc.name)
2360 		return -ENOMEM;
2361 
2362 	sc->battery = devm_power_supply_register(&hdev->dev, &sc->battery_desc,
2363 					    &psy_cfg);
2364 	if (IS_ERR(sc->battery)) {
2365 		ret = PTR_ERR(sc->battery);
2366 		hid_err(hdev, "Unable to register battery device\n");
2367 		return ret;
2368 	}
2369 
2370 	power_supply_powers(sc->battery, &hdev->dev);
2371 	return 0;
2372 }
2373 
2374 /*
2375  * If a controller is plugged in via USB while already connected via Bluetooth
2376  * it will show up as two devices. A global list of connected controllers and
2377  * their MAC addresses is maintained to ensure that a device is only connected
2378  * once.
2379  *
2380  * Some USB-only devices masquerade as Sixaxis controllers and all have the
2381  * same dummy Bluetooth address, so a comparison of the connection type is
2382  * required.  Devices are only rejected in the case where two devices have
2383  * matching Bluetooth addresses on different bus types.
2384  */
2385 static inline int sony_compare_connection_type(struct sony_sc *sc0,
2386 						struct sony_sc *sc1)
2387 {
2388 	const int sc0_not_bt = !(sc0->quirks & SONY_BT_DEVICE);
2389 	const int sc1_not_bt = !(sc1->quirks & SONY_BT_DEVICE);
2390 
2391 	return sc0_not_bt == sc1_not_bt;
2392 }
2393 
2394 static int sony_check_add_dev_list(struct sony_sc *sc)
2395 {
2396 	struct sony_sc *entry;
2397 	unsigned long flags;
2398 	int ret;
2399 
2400 	spin_lock_irqsave(&sony_dev_list_lock, flags);
2401 
2402 	list_for_each_entry(entry, &sony_device_list, list_node) {
2403 		ret = memcmp(sc->mac_address, entry->mac_address,
2404 				sizeof(sc->mac_address));
2405 		if (!ret) {
2406 			if (sony_compare_connection_type(sc, entry)) {
2407 				ret = 1;
2408 			} else {
2409 				ret = -EEXIST;
2410 				hid_info(sc->hdev,
2411 				"controller with MAC address %pMR already connected\n",
2412 				sc->mac_address);
2413 			}
2414 			goto unlock;
2415 		}
2416 	}
2417 
2418 	ret = 0;
2419 	list_add(&(sc->list_node), &sony_device_list);
2420 
2421 unlock:
2422 	spin_unlock_irqrestore(&sony_dev_list_lock, flags);
2423 	return ret;
2424 }
2425 
2426 static void sony_remove_dev_list(struct sony_sc *sc)
2427 {
2428 	unsigned long flags;
2429 
2430 	if (sc->list_node.next) {
2431 		spin_lock_irqsave(&sony_dev_list_lock, flags);
2432 		list_del(&(sc->list_node));
2433 		spin_unlock_irqrestore(&sony_dev_list_lock, flags);
2434 	}
2435 }
2436 
2437 static int sony_get_bt_devaddr(struct sony_sc *sc)
2438 {
2439 	int ret;
2440 
2441 	/* HIDP stores the device MAC address as a string in the uniq field. */
2442 	ret = strlen(sc->hdev->uniq);
2443 	if (ret != 17)
2444 		return -EINVAL;
2445 
2446 	ret = sscanf(sc->hdev->uniq,
2447 		"%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx",
2448 		&sc->mac_address[5], &sc->mac_address[4], &sc->mac_address[3],
2449 		&sc->mac_address[2], &sc->mac_address[1], &sc->mac_address[0]);
2450 
2451 	if (ret != 6)
2452 		return -EINVAL;
2453 
2454 	return 0;
2455 }
2456 
2457 static int sony_check_add(struct sony_sc *sc)
2458 {
2459 	u8 *buf = NULL;
2460 	int n, ret;
2461 
2462 	if ((sc->quirks & DUALSHOCK4_CONTROLLER_BT) ||
2463 	    (sc->quirks & MOTION_CONTROLLER_BT) ||
2464 	    (sc->quirks & NAVIGATION_CONTROLLER_BT) ||
2465 	    (sc->quirks & SIXAXIS_CONTROLLER_BT)) {
2466 		/*
2467 		 * sony_get_bt_devaddr() attempts to parse the Bluetooth MAC
2468 		 * address from the uniq string where HIDP stores it.
2469 		 * As uniq cannot be guaranteed to be a MAC address in all cases
2470 		 * a failure of this function should not prevent the connection.
2471 		 */
2472 		if (sony_get_bt_devaddr(sc) < 0) {
2473 			hid_warn(sc->hdev, "UNIQ does not contain a MAC address; duplicate check skipped\n");
2474 			return 0;
2475 		}
2476 	} else if (sc->quirks & (DUALSHOCK4_CONTROLLER_USB | DUALSHOCK4_DONGLE)) {
2477 		buf = kmalloc(DS4_FEATURE_REPORT_0x81_SIZE, GFP_KERNEL);
2478 		if (!buf)
2479 			return -ENOMEM;
2480 
2481 		/*
2482 		 * The MAC address of a DS4 controller connected via USB can be
2483 		 * retrieved with feature report 0x81. The address begins at
2484 		 * offset 1.
2485 		 */
2486 		ret = hid_hw_raw_request(sc->hdev, 0x81, buf,
2487 				DS4_FEATURE_REPORT_0x81_SIZE, HID_FEATURE_REPORT,
2488 				HID_REQ_GET_REPORT);
2489 
2490 		if (ret != DS4_FEATURE_REPORT_0x81_SIZE) {
2491 			hid_err(sc->hdev, "failed to retrieve feature report 0x81 with the DualShock 4 MAC address\n");
2492 			ret = ret < 0 ? ret : -EINVAL;
2493 			goto out_free;
2494 		}
2495 
2496 		memcpy(sc->mac_address, &buf[1], sizeof(sc->mac_address));
2497 
2498 		snprintf(sc->hdev->uniq, sizeof(sc->hdev->uniq),
2499 			 "%pMR", sc->mac_address);
2500 	} else if ((sc->quirks & SIXAXIS_CONTROLLER_USB) ||
2501 			(sc->quirks & NAVIGATION_CONTROLLER_USB)) {
2502 		buf = kmalloc(SIXAXIS_REPORT_0xF2_SIZE, GFP_KERNEL);
2503 		if (!buf)
2504 			return -ENOMEM;
2505 
2506 		/*
2507 		 * The MAC address of a Sixaxis controller connected via USB can
2508 		 * be retrieved with feature report 0xf2. The address begins at
2509 		 * offset 4.
2510 		 */
2511 		ret = hid_hw_raw_request(sc->hdev, 0xf2, buf,
2512 				SIXAXIS_REPORT_0xF2_SIZE, HID_FEATURE_REPORT,
2513 				HID_REQ_GET_REPORT);
2514 
2515 		if (ret != SIXAXIS_REPORT_0xF2_SIZE) {
2516 			hid_err(sc->hdev, "failed to retrieve feature report 0xf2 with the Sixaxis MAC address\n");
2517 			ret = ret < 0 ? ret : -EINVAL;
2518 			goto out_free;
2519 		}
2520 
2521 		/*
2522 		 * The Sixaxis device MAC in the report is big-endian and must
2523 		 * be byte-swapped.
2524 		 */
2525 		for (n = 0; n < 6; n++)
2526 			sc->mac_address[5-n] = buf[4+n];
2527 
2528 		snprintf(sc->hdev->uniq, sizeof(sc->hdev->uniq),
2529 			 "%pMR", sc->mac_address);
2530 	} else {
2531 		return 0;
2532 	}
2533 
2534 	ret = sony_check_add_dev_list(sc);
2535 
2536 out_free:
2537 
2538 	kfree(buf);
2539 
2540 	return ret;
2541 }
2542 
2543 static int sony_set_device_id(struct sony_sc *sc)
2544 {
2545 	int ret;
2546 
2547 	/*
2548 	 * Only DualShock 4 or Sixaxis controllers get an id.
2549 	 * All others are set to -1.
2550 	 */
2551 	if ((sc->quirks & SIXAXIS_CONTROLLER) ||
2552 	    (sc->quirks & DUALSHOCK4_CONTROLLER)) {
2553 		ret = ida_simple_get(&sony_device_id_allocator, 0, 0,
2554 					GFP_KERNEL);
2555 		if (ret < 0) {
2556 			sc->device_id = -1;
2557 			return ret;
2558 		}
2559 		sc->device_id = ret;
2560 	} else {
2561 		sc->device_id = -1;
2562 	}
2563 
2564 	return 0;
2565 }
2566 
2567 static void sony_release_device_id(struct sony_sc *sc)
2568 {
2569 	if (sc->device_id >= 0) {
2570 		ida_simple_remove(&sony_device_id_allocator, sc->device_id);
2571 		sc->device_id = -1;
2572 	}
2573 }
2574 
2575 static inline void sony_init_output_report(struct sony_sc *sc,
2576 				void (*send_output_report)(struct sony_sc *))
2577 {
2578 	sc->send_output_report = send_output_report;
2579 
2580 	if (!sc->state_worker_initialized)
2581 		INIT_WORK(&sc->state_worker, sony_state_worker);
2582 
2583 	sc->state_worker_initialized = 1;
2584 }
2585 
2586 static inline void sony_cancel_work_sync(struct sony_sc *sc)
2587 {
2588 	unsigned long flags;
2589 
2590 	if (sc->hotplug_worker_initialized)
2591 		cancel_work_sync(&sc->hotplug_worker);
2592 	if (sc->state_worker_initialized) {
2593 		spin_lock_irqsave(&sc->lock, flags);
2594 		sc->state_worker_initialized = 0;
2595 		spin_unlock_irqrestore(&sc->lock, flags);
2596 		cancel_work_sync(&sc->state_worker);
2597 	}
2598 }
2599 
2600 static int sony_input_configured(struct hid_device *hdev,
2601 					struct hid_input *hidinput)
2602 {
2603 	struct sony_sc *sc = hid_get_drvdata(hdev);
2604 	int append_dev_id;
2605 	int ret;
2606 
2607 	ret = sony_set_device_id(sc);
2608 	if (ret < 0) {
2609 		hid_err(hdev, "failed to allocate the device id\n");
2610 		goto err_stop;
2611 	}
2612 
2613 	ret = append_dev_id = sony_check_add(sc);
2614 	if (ret < 0)
2615 		goto err_stop;
2616 
2617 	ret = sony_allocate_output_report(sc);
2618 	if (ret < 0) {
2619 		hid_err(hdev, "failed to allocate the output report buffer\n");
2620 		goto err_stop;
2621 	}
2622 
2623 	if (sc->quirks & NAVIGATION_CONTROLLER_USB) {
2624 		/*
2625 		 * The Sony Sixaxis does not handle HID Output Reports on the
2626 		 * Interrupt EP like it could, so we need to force HID Output
2627 		 * Reports to use HID_REQ_SET_REPORT on the Control EP.
2628 		 *
2629 		 * There is also another issue about HID Output Reports via USB,
2630 		 * the Sixaxis does not want the report_id as part of the data
2631 		 * packet, so we have to discard buf[0] when sending the actual
2632 		 * control message, even for numbered reports, humpf!
2633 		 *
2634 		 * Additionally, the Sixaxis on USB isn't properly initialized
2635 		 * until the PS logo button is pressed and as such won't retain
2636 		 * any state set by an output report, so the initial
2637 		 * configuration report is deferred until the first input
2638 		 * report arrives.
2639 		 */
2640 		hdev->quirks |= HID_QUIRK_NO_OUTPUT_REPORTS_ON_INTR_EP;
2641 		hdev->quirks |= HID_QUIRK_SKIP_OUTPUT_REPORT_ID;
2642 		sc->defer_initialization = 1;
2643 
2644 		ret = sixaxis_set_operational_usb(hdev);
2645 		if (ret < 0) {
2646 			hid_err(hdev, "Failed to set controller into operational mode\n");
2647 			goto err_stop;
2648 		}
2649 
2650 		sony_init_output_report(sc, sixaxis_send_output_report);
2651 	} else if (sc->quirks & NAVIGATION_CONTROLLER_BT) {
2652 		/*
2653 		 * The Navigation controller wants output reports sent on the ctrl
2654 		 * endpoint when connected via Bluetooth.
2655 		 */
2656 		hdev->quirks |= HID_QUIRK_NO_OUTPUT_REPORTS_ON_INTR_EP;
2657 
2658 		ret = sixaxis_set_operational_bt(hdev);
2659 		if (ret < 0) {
2660 			hid_err(hdev, "Failed to set controller into operational mode\n");
2661 			goto err_stop;
2662 		}
2663 
2664 		sony_init_output_report(sc, sixaxis_send_output_report);
2665 	} else if (sc->quirks & SIXAXIS_CONTROLLER_USB) {
2666 		/*
2667 		 * The Sony Sixaxis does not handle HID Output Reports on the
2668 		 * Interrupt EP and the device only becomes active when the
2669 		 * PS button is pressed. See comment for Navigation controller
2670 		 * above for more details.
2671 		 */
2672 		hdev->quirks |= HID_QUIRK_NO_OUTPUT_REPORTS_ON_INTR_EP;
2673 		hdev->quirks |= HID_QUIRK_SKIP_OUTPUT_REPORT_ID;
2674 		sc->defer_initialization = 1;
2675 
2676 		ret = sixaxis_set_operational_usb(hdev);
2677 		if (ret < 0) {
2678 			hid_err(hdev, "Failed to set controller into operational mode\n");
2679 			goto err_stop;
2680 		}
2681 
2682 		ret = sony_register_sensors(sc);
2683 		if (ret) {
2684 			hid_err(sc->hdev,
2685 			"Unable to initialize motion sensors: %d\n", ret);
2686 			goto err_stop;
2687 		}
2688 
2689 		sony_init_output_report(sc, sixaxis_send_output_report);
2690 	} else if (sc->quirks & SIXAXIS_CONTROLLER_BT) {
2691 		/*
2692 		 * The Sixaxis wants output reports sent on the ctrl endpoint
2693 		 * when connected via Bluetooth.
2694 		 */
2695 		hdev->quirks |= HID_QUIRK_NO_OUTPUT_REPORTS_ON_INTR_EP;
2696 
2697 		ret = sixaxis_set_operational_bt(hdev);
2698 		if (ret < 0) {
2699 			hid_err(hdev, "Failed to set controller into operational mode\n");
2700 			goto err_stop;
2701 		}
2702 
2703 		ret = sony_register_sensors(sc);
2704 		if (ret) {
2705 			hid_err(sc->hdev,
2706 			"Unable to initialize motion sensors: %d\n", ret);
2707 			goto err_stop;
2708 		}
2709 
2710 		sony_init_output_report(sc, sixaxis_send_output_report);
2711 	} else if (sc->quirks & DUALSHOCK4_CONTROLLER) {
2712 		ret = dualshock4_get_calibration_data(sc);
2713 		if (ret < 0) {
2714 			hid_err(hdev, "Failed to get calibration data from Dualshock 4\n");
2715 			goto err_stop;
2716 		}
2717 
2718 		ret = dualshock4_get_version_info(sc);
2719 		if (ret < 0) {
2720 			hid_err(sc->hdev, "Failed to get version data from Dualshock 4\n");
2721 			goto err_stop;
2722 		}
2723 
2724 		ret = device_create_file(&sc->hdev->dev, &dev_attr_firmware_version);
2725 		if (ret) {
2726 			/* Make zero for cleanup reasons of sysfs entries. */
2727 			sc->fw_version = 0;
2728 			sc->hw_version = 0;
2729 			hid_err(sc->hdev, "can't create sysfs firmware_version attribute err: %d\n", ret);
2730 			goto err_stop;
2731 		}
2732 
2733 		ret = device_create_file(&sc->hdev->dev, &dev_attr_hardware_version);
2734 		if (ret) {
2735 			sc->hw_version = 0;
2736 			hid_err(sc->hdev, "can't create sysfs hardware_version attribute err: %d\n", ret);
2737 			goto err_stop;
2738 		}
2739 
2740 		/*
2741 		 * The Dualshock 4 touchpad supports 2 touches and has a
2742 		 * resolution of 1920x942 (44.86 dots/mm).
2743 		 */
2744 		ret = sony_register_touchpad(sc, 2, 1920, 942, 0, 0, 0);
2745 		if (ret) {
2746 			hid_err(sc->hdev,
2747 			"Unable to initialize multi-touch slots: %d\n",
2748 			ret);
2749 			goto err_stop;
2750 		}
2751 
2752 		ret = sony_register_sensors(sc);
2753 		if (ret) {
2754 			hid_err(sc->hdev,
2755 			"Unable to initialize motion sensors: %d\n", ret);
2756 			goto err_stop;
2757 		}
2758 
2759 		if (sc->quirks & DUALSHOCK4_CONTROLLER_BT) {
2760 			sc->ds4_bt_poll_interval = DS4_BT_DEFAULT_POLL_INTERVAL_MS;
2761 			ret = device_create_file(&sc->hdev->dev, &dev_attr_bt_poll_interval);
2762 			if (ret)
2763 				hid_warn(sc->hdev,
2764 				 "can't create sysfs bt_poll_interval attribute err: %d\n",
2765 				 ret);
2766 		}
2767 
2768 		if (sc->quirks & DUALSHOCK4_DONGLE) {
2769 			INIT_WORK(&sc->hotplug_worker, dualshock4_calibration_work);
2770 			sc->hotplug_worker_initialized = 1;
2771 			sc->ds4_dongle_state = DONGLE_DISCONNECTED;
2772 		}
2773 
2774 		sony_init_output_report(sc, dualshock4_send_output_report);
2775 	} else if (sc->quirks & NSG_MRXU_REMOTE) {
2776 		/*
2777 		 * The NSG-MRxU touchpad supports 2 touches and has a
2778 		 * resolution of 1667x1868
2779 		 */
2780 		ret = sony_register_touchpad(sc, 2,
2781 			NSG_MRXU_MAX_X, NSG_MRXU_MAX_Y, 15, 15, 1);
2782 		if (ret) {
2783 			hid_err(sc->hdev,
2784 			"Unable to initialize multi-touch slots: %d\n",
2785 			ret);
2786 			goto err_stop;
2787 		}
2788 
2789 	} else if (sc->quirks & MOTION_CONTROLLER) {
2790 		sony_init_output_report(sc, motion_send_output_report);
2791 	} else {
2792 		ret = 0;
2793 	}
2794 
2795 	if (sc->quirks & SONY_LED_SUPPORT) {
2796 		ret = sony_leds_init(sc);
2797 		if (ret < 0)
2798 			goto err_stop;
2799 	}
2800 
2801 	if (sc->quirks & SONY_BATTERY_SUPPORT) {
2802 		ret = sony_battery_probe(sc, append_dev_id);
2803 		if (ret < 0)
2804 			goto err_stop;
2805 
2806 		/* Open the device to receive reports with battery info */
2807 		ret = hid_hw_open(hdev);
2808 		if (ret < 0) {
2809 			hid_err(hdev, "hw open failed\n");
2810 			goto err_stop;
2811 		}
2812 	}
2813 
2814 	if (sc->quirks & SONY_FF_SUPPORT) {
2815 		ret = sony_init_ff(sc);
2816 		if (ret < 0)
2817 			goto err_close;
2818 	}
2819 
2820 	return 0;
2821 err_close:
2822 	hid_hw_close(hdev);
2823 err_stop:
2824 	/* Piggy back on the default ds4_bt_ poll_interval to determine
2825 	 * if we need to remove the file as we don't know for sure if we
2826 	 * executed that logic.
2827 	 */
2828 	if (sc->ds4_bt_poll_interval)
2829 		device_remove_file(&sc->hdev->dev, &dev_attr_bt_poll_interval);
2830 	if (sc->fw_version)
2831 		device_remove_file(&sc->hdev->dev, &dev_attr_firmware_version);
2832 	if (sc->hw_version)
2833 		device_remove_file(&sc->hdev->dev, &dev_attr_hardware_version);
2834 	sony_cancel_work_sync(sc);
2835 	sony_remove_dev_list(sc);
2836 	sony_release_device_id(sc);
2837 	return ret;
2838 }
2839 
2840 static int sony_probe(struct hid_device *hdev, const struct hid_device_id *id)
2841 {
2842 	int ret;
2843 	unsigned long quirks = id->driver_data;
2844 	struct sony_sc *sc;
2845 	unsigned int connect_mask = HID_CONNECT_DEFAULT;
2846 
2847 	if (!strcmp(hdev->name, "FutureMax Dance Mat"))
2848 		quirks |= FUTUREMAX_DANCE_MAT;
2849 
2850 	if (!strcmp(hdev->name, "SHANWAN PS3 GamePad"))
2851 		quirks |= SHANWAN_GAMEPAD;
2852 
2853 	sc = devm_kzalloc(&hdev->dev, sizeof(*sc), GFP_KERNEL);
2854 	if (sc == NULL) {
2855 		hid_err(hdev, "can't alloc sony descriptor\n");
2856 		return -ENOMEM;
2857 	}
2858 
2859 	spin_lock_init(&sc->lock);
2860 
2861 	sc->quirks = quirks;
2862 	hid_set_drvdata(hdev, sc);
2863 	sc->hdev = hdev;
2864 
2865 	ret = hid_parse(hdev);
2866 	if (ret) {
2867 		hid_err(hdev, "parse failed\n");
2868 		return ret;
2869 	}
2870 
2871 	if (sc->quirks & VAIO_RDESC_CONSTANT)
2872 		connect_mask |= HID_CONNECT_HIDDEV_FORCE;
2873 	else if (sc->quirks & SIXAXIS_CONTROLLER)
2874 		connect_mask |= HID_CONNECT_HIDDEV_FORCE;
2875 
2876 	/* Patch the hw version on DS3/4 compatible devices, so applications can
2877 	 * distinguish between the default HID mappings and the mappings defined
2878 	 * by the Linux game controller spec. This is important for the SDL2
2879 	 * library, which has a game controller database, which uses device ids
2880 	 * in combination with version as a key.
2881 	 */
2882 	if (sc->quirks & (SIXAXIS_CONTROLLER | DUALSHOCK4_CONTROLLER))
2883 		hdev->version |= 0x8000;
2884 
2885 	ret = hid_hw_start(hdev, connect_mask);
2886 	if (ret) {
2887 		hid_err(hdev, "hw start failed\n");
2888 		return ret;
2889 	}
2890 
2891 	/* sony_input_configured can fail, but this doesn't result
2892 	 * in hid_hw_start failures (intended). Check whether
2893 	 * the HID layer claimed the device else fail.
2894 	 * We don't know the actual reason for the failure, most
2895 	 * likely it is due to EEXIST in case of double connection
2896 	 * of USB and Bluetooth, but could have been due to ENOMEM
2897 	 * or other reasons as well.
2898 	 */
2899 	if (!(hdev->claimed & HID_CLAIMED_INPUT)) {
2900 		hid_err(hdev, "failed to claim input\n");
2901 		hid_hw_stop(hdev);
2902 		return -ENODEV;
2903 	}
2904 
2905 	return ret;
2906 }
2907 
2908 static void sony_remove(struct hid_device *hdev)
2909 {
2910 	struct sony_sc *sc = hid_get_drvdata(hdev);
2911 
2912 	hid_hw_close(hdev);
2913 
2914 	if (sc->quirks & DUALSHOCK4_CONTROLLER_BT)
2915 		device_remove_file(&sc->hdev->dev, &dev_attr_bt_poll_interval);
2916 
2917 	if (sc->fw_version)
2918 		device_remove_file(&sc->hdev->dev, &dev_attr_firmware_version);
2919 
2920 	if (sc->hw_version)
2921 		device_remove_file(&sc->hdev->dev, &dev_attr_hardware_version);
2922 
2923 	sony_cancel_work_sync(sc);
2924 
2925 	sony_remove_dev_list(sc);
2926 
2927 	sony_release_device_id(sc);
2928 
2929 	hid_hw_stop(hdev);
2930 }
2931 
2932 #ifdef CONFIG_PM
2933 
2934 static int sony_suspend(struct hid_device *hdev, pm_message_t message)
2935 {
2936 #ifdef CONFIG_SONY_FF
2937 
2938 	/* On suspend stop any running force-feedback events */
2939 	if (SONY_FF_SUPPORT) {
2940 		struct sony_sc *sc = hid_get_drvdata(hdev);
2941 
2942 		sc->left = sc->right = 0;
2943 		sony_send_output_report(sc);
2944 	}
2945 
2946 #endif
2947 	return 0;
2948 }
2949 
2950 static int sony_resume(struct hid_device *hdev)
2951 {
2952 	struct sony_sc *sc = hid_get_drvdata(hdev);
2953 
2954 	/*
2955 	 * The Sixaxis and navigation controllers on USB need to be
2956 	 * reinitialized on resume or they won't behave properly.
2957 	 */
2958 	if ((sc->quirks & SIXAXIS_CONTROLLER_USB) ||
2959 		(sc->quirks & NAVIGATION_CONTROLLER_USB)) {
2960 		sixaxis_set_operational_usb(sc->hdev);
2961 		sc->defer_initialization = 1;
2962 	}
2963 
2964 	return 0;
2965 }
2966 
2967 #endif
2968 
2969 static const struct hid_device_id sony_devices[] = {
2970 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER),
2971 		.driver_data = SIXAXIS_CONTROLLER_USB },
2972 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_NAVIGATION_CONTROLLER),
2973 		.driver_data = NAVIGATION_CONTROLLER_USB },
2974 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_NAVIGATION_CONTROLLER),
2975 		.driver_data = NAVIGATION_CONTROLLER_BT },
2976 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_MOTION_CONTROLLER),
2977 		.driver_data = MOTION_CONTROLLER_USB },
2978 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_MOTION_CONTROLLER),
2979 		.driver_data = MOTION_CONTROLLER_BT },
2980 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER),
2981 		.driver_data = SIXAXIS_CONTROLLER_BT },
2982 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE),
2983 		.driver_data = VAIO_RDESC_CONSTANT },
2984 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGP_MOUSE),
2985 		.driver_data = VAIO_RDESC_CONSTANT },
2986 	/*
2987 	 * Wired Buzz Controller. Reported as Sony Hub from its USB ID and as
2988 	 * Logitech joystick from the device descriptor.
2989 	 */
2990 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_BUZZ_CONTROLLER),
2991 		.driver_data = BUZZ_CONTROLLER },
2992 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_WIRELESS_BUZZ_CONTROLLER),
2993 		.driver_data = BUZZ_CONTROLLER },
2994 	/* PS3 BD Remote Control */
2995 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_BDREMOTE),
2996 		.driver_data = PS3REMOTE },
2997 	/* Logitech Harmony Adapter for PS3 */
2998 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_HARMONY_PS3),
2999 		.driver_data = PS3REMOTE },
3000 	/* SMK-Link PS3 BD Remote Control */
3001 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SMK, USB_DEVICE_ID_SMK_PS3_BDREMOTE),
3002 		.driver_data = PS3REMOTE },
3003 	/* Sony Dualshock 4 controllers for PS4 */
3004 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER),
3005 		.driver_data = DUALSHOCK4_CONTROLLER_USB },
3006 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER),
3007 		.driver_data = DUALSHOCK4_CONTROLLER_BT },
3008 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER_2),
3009 		.driver_data = DUALSHOCK4_CONTROLLER_USB },
3010 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER_2),
3011 		.driver_data = DUALSHOCK4_CONTROLLER_BT },
3012 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER_DONGLE),
3013 		.driver_data = DUALSHOCK4_DONGLE },
3014 	/* Nyko Core Controller for PS3 */
3015 	{ HID_USB_DEVICE(USB_VENDOR_ID_SINO_LITE, USB_DEVICE_ID_SINO_LITE_CONTROLLER),
3016 		.driver_data = SIXAXIS_CONTROLLER_USB | SINO_LITE_CONTROLLER },
3017 	/* SMK-Link NSG-MR5U Remote Control */
3018 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SMK, USB_DEVICE_ID_SMK_NSG_MR5U_REMOTE),
3019 		.driver_data = NSG_MR5U_REMOTE_BT },
3020 	/* SMK-Link NSG-MR7U Remote Control */
3021 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SMK, USB_DEVICE_ID_SMK_NSG_MR7U_REMOTE),
3022 		.driver_data = NSG_MR7U_REMOTE_BT },
3023 	{ }
3024 };
3025 MODULE_DEVICE_TABLE(hid, sony_devices);
3026 
3027 static struct hid_driver sony_driver = {
3028 	.name             = "sony",
3029 	.id_table         = sony_devices,
3030 	.input_mapping    = sony_mapping,
3031 	.input_configured = sony_input_configured,
3032 	.probe            = sony_probe,
3033 	.remove           = sony_remove,
3034 	.report_fixup     = sony_report_fixup,
3035 	.raw_event        = sony_raw_event,
3036 
3037 #ifdef CONFIG_PM
3038 	.suspend          = sony_suspend,
3039 	.resume	          = sony_resume,
3040 	.reset_resume     = sony_resume,
3041 #endif
3042 };
3043 
3044 static int __init sony_init(void)
3045 {
3046 	dbg_hid("Sony:%s\n", __func__);
3047 
3048 	return hid_register_driver(&sony_driver);
3049 }
3050 
3051 static void __exit sony_exit(void)
3052 {
3053 	dbg_hid("Sony:%s\n", __func__);
3054 
3055 	hid_unregister_driver(&sony_driver);
3056 	ida_destroy(&sony_device_id_allocator);
3057 }
3058 module_init(sony_init);
3059 module_exit(sony_exit);
3060 
3061 MODULE_LICENSE("GPL");
3062