xref: /openbmc/linux/drivers/hid/hid-sony.c (revision af80559b)
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 	switch (which) {
589 	case SONY_WORKER_STATE:
590 		if (!sc->defer_initialization)
591 			schedule_work(&sc->state_worker);
592 		break;
593 	case SONY_WORKER_HOTPLUG:
594 		if (sc->hotplug_worker_initialized)
595 			schedule_work(&sc->hotplug_worker);
596 		break;
597 	}
598 }
599 
600 static ssize_t ds4_show_poll_interval(struct device *dev,
601 				struct device_attribute
602 				*attr, char *buf)
603 {
604 	struct hid_device *hdev = to_hid_device(dev);
605 	struct sony_sc *sc = hid_get_drvdata(hdev);
606 
607 	return snprintf(buf, PAGE_SIZE, "%i\n", sc->ds4_bt_poll_interval);
608 }
609 
610 static ssize_t ds4_store_poll_interval(struct device *dev,
611 				struct device_attribute *attr,
612 				const char *buf, size_t count)
613 {
614 	struct hid_device *hdev = to_hid_device(dev);
615 	struct sony_sc *sc = hid_get_drvdata(hdev);
616 	unsigned long flags;
617 	u8 interval;
618 
619 	if (kstrtou8(buf, 0, &interval))
620 		return -EINVAL;
621 
622 	if (interval > DS4_BT_MAX_POLL_INTERVAL_MS)
623 		return -EINVAL;
624 
625 	spin_lock_irqsave(&sc->lock, flags);
626 	sc->ds4_bt_poll_interval = interval;
627 	spin_unlock_irqrestore(&sc->lock, flags);
628 
629 	sony_schedule_work(sc, SONY_WORKER_STATE);
630 
631 	return count;
632 }
633 
634 static DEVICE_ATTR(bt_poll_interval, 0644, ds4_show_poll_interval,
635 		ds4_store_poll_interval);
636 
637 static ssize_t sony_show_firmware_version(struct device *dev,
638 				struct device_attribute
639 				*attr, char *buf)
640 {
641 	struct hid_device *hdev = to_hid_device(dev);
642 	struct sony_sc *sc = hid_get_drvdata(hdev);
643 
644 	return snprintf(buf, PAGE_SIZE, "0x%04x\n", sc->fw_version);
645 }
646 
647 static DEVICE_ATTR(firmware_version, 0444, sony_show_firmware_version, NULL);
648 
649 static ssize_t sony_show_hardware_version(struct device *dev,
650 				struct device_attribute
651 				*attr, char *buf)
652 {
653 	struct hid_device *hdev = to_hid_device(dev);
654 	struct sony_sc *sc = hid_get_drvdata(hdev);
655 
656 	return snprintf(buf, PAGE_SIZE, "0x%04x\n", sc->hw_version);
657 }
658 
659 static DEVICE_ATTR(hardware_version, 0444, sony_show_hardware_version, NULL);
660 
661 static u8 *motion_fixup(struct hid_device *hdev, u8 *rdesc,
662 			     unsigned int *rsize)
663 {
664 	*rsize = sizeof(motion_rdesc);
665 	return motion_rdesc;
666 }
667 
668 static u8 *ps3remote_fixup(struct hid_device *hdev, u8 *rdesc,
669 			     unsigned int *rsize)
670 {
671 	*rsize = sizeof(ps3remote_rdesc);
672 	return ps3remote_rdesc;
673 }
674 
675 static int ps3remote_mapping(struct hid_device *hdev, struct hid_input *hi,
676 			     struct hid_field *field, struct hid_usage *usage,
677 			     unsigned long **bit, int *max)
678 {
679 	unsigned int key = usage->hid & HID_USAGE;
680 
681 	if ((usage->hid & HID_USAGE_PAGE) != HID_UP_BUTTON)
682 		return -1;
683 
684 	switch (usage->collection_index) {
685 	case 1:
686 		if (key >= ARRAY_SIZE(ps3remote_keymap_joypad_buttons))
687 			return -1;
688 
689 		key = ps3remote_keymap_joypad_buttons[key];
690 		if (!key)
691 			return -1;
692 		break;
693 	case 2:
694 		if (key >= ARRAY_SIZE(ps3remote_keymap_remote_buttons))
695 			return -1;
696 
697 		key = ps3remote_keymap_remote_buttons[key];
698 		if (!key)
699 			return -1;
700 		break;
701 	default:
702 		return -1;
703 	}
704 
705 	hid_map_usage_clear(hi, usage, bit, max, EV_KEY, key);
706 	return 1;
707 }
708 
709 static int navigation_mapping(struct hid_device *hdev, struct hid_input *hi,
710 			  struct hid_field *field, struct hid_usage *usage,
711 			  unsigned long **bit, int *max)
712 {
713 	if ((usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON) {
714 		unsigned int key = usage->hid & HID_USAGE;
715 
716 		if (key >= ARRAY_SIZE(sixaxis_keymap))
717 			return -1;
718 
719 		key = navigation_keymap[key];
720 		if (!key)
721 			return -1;
722 
723 		hid_map_usage_clear(hi, usage, bit, max, EV_KEY, key);
724 		return 1;
725 	} else if (usage->hid == HID_GD_POINTER) {
726 		/* See comment in sixaxis_mapping, basically the L2 (and R2)
727 		 * triggers are reported through GD Pointer.
728 		 * In addition we ignore any analog button 'axes' and only
729 		 * support digital buttons.
730 		 */
731 		switch (usage->usage_index) {
732 		case 8: /* L2 */
733 			usage->hid = HID_GD_Z;
734 			break;
735 		default:
736 			return -1;
737 		}
738 
739 		hid_map_usage_clear(hi, usage, bit, max, EV_ABS, usage->hid & 0xf);
740 		return 1;
741 	} else if ((usage->hid & HID_USAGE_PAGE) == HID_UP_GENDESK) {
742 		unsigned int abs = usage->hid & HID_USAGE;
743 
744 		if (abs >= ARRAY_SIZE(navigation_absmap))
745 			return -1;
746 
747 		abs = navigation_absmap[abs];
748 
749 		hid_map_usage_clear(hi, usage, bit, max, EV_ABS, abs);
750 		return 1;
751 	}
752 
753 	return -1;
754 }
755 
756 
757 static int sixaxis_mapping(struct hid_device *hdev, struct hid_input *hi,
758 			  struct hid_field *field, struct hid_usage *usage,
759 			  unsigned long **bit, int *max)
760 {
761 	if ((usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON) {
762 		unsigned int key = usage->hid & HID_USAGE;
763 
764 		if (key >= ARRAY_SIZE(sixaxis_keymap))
765 			return -1;
766 
767 		key = sixaxis_keymap[key];
768 		hid_map_usage_clear(hi, usage, bit, max, EV_KEY, key);
769 		return 1;
770 	} else if (usage->hid == HID_GD_POINTER) {
771 		/* The DS3 provides analog values for most buttons and even
772 		 * for HAT axes through GD Pointer. L2 and R2 are reported
773 		 * among these as well instead of as GD Z / RZ. Remap L2
774 		 * and R2 and ignore other analog 'button axes' as there is
775 		 * no good way for reporting them.
776 		 */
777 		switch (usage->usage_index) {
778 		case 8: /* L2 */
779 			usage->hid = HID_GD_Z;
780 			break;
781 		case 9: /* R2 */
782 			usage->hid = HID_GD_RZ;
783 			break;
784 		default:
785 			return -1;
786 		}
787 
788 		hid_map_usage_clear(hi, usage, bit, max, EV_ABS, usage->hid & 0xf);
789 		return 1;
790 	} else if ((usage->hid & HID_USAGE_PAGE) == HID_UP_GENDESK) {
791 		unsigned int abs = usage->hid & HID_USAGE;
792 
793 		if (abs >= ARRAY_SIZE(sixaxis_absmap))
794 			return -1;
795 
796 		abs = sixaxis_absmap[abs];
797 
798 		hid_map_usage_clear(hi, usage, bit, max, EV_ABS, abs);
799 		return 1;
800 	}
801 
802 	return -1;
803 }
804 
805 static int ds4_mapping(struct hid_device *hdev, struct hid_input *hi,
806 		       struct hid_field *field, struct hid_usage *usage,
807 		       unsigned long **bit, int *max)
808 {
809 	if ((usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON) {
810 		unsigned int key = usage->hid & HID_USAGE;
811 
812 		if (key >= ARRAY_SIZE(ds4_keymap))
813 			return -1;
814 
815 		key = ds4_keymap[key];
816 		hid_map_usage_clear(hi, usage, bit, max, EV_KEY, key);
817 		return 1;
818 	} else if ((usage->hid & HID_USAGE_PAGE) == HID_UP_GENDESK) {
819 		unsigned int abs = usage->hid & HID_USAGE;
820 
821 		/* Let the HID parser deal with the HAT. */
822 		if (usage->hid == HID_GD_HATSWITCH)
823 			return 0;
824 
825 		if (abs >= ARRAY_SIZE(ds4_absmap))
826 			return -1;
827 
828 		abs = ds4_absmap[abs];
829 		hid_map_usage_clear(hi, usage, bit, max, EV_ABS, abs);
830 		return 1;
831 	}
832 
833 	return 0;
834 }
835 
836 static u8 *sony_report_fixup(struct hid_device *hdev, u8 *rdesc,
837 		unsigned int *rsize)
838 {
839 	struct sony_sc *sc = hid_get_drvdata(hdev);
840 
841 	if (sc->quirks & (SINO_LITE_CONTROLLER | FUTUREMAX_DANCE_MAT))
842 		return rdesc;
843 
844 	/*
845 	 * Some Sony RF receivers wrongly declare the mouse pointer as a
846 	 * a constant non-data variable.
847 	 */
848 	if ((sc->quirks & VAIO_RDESC_CONSTANT) && *rsize >= 56 &&
849 	    /* usage page: generic desktop controls */
850 	    /* rdesc[0] == 0x05 && rdesc[1] == 0x01 && */
851 	    /* usage: mouse */
852 	    rdesc[2] == 0x09 && rdesc[3] == 0x02 &&
853 	    /* input (usage page for x,y axes): constant, variable, relative */
854 	    rdesc[54] == 0x81 && rdesc[55] == 0x07) {
855 		hid_info(hdev, "Fixing up Sony RF Receiver report descriptor\n");
856 		/* input: data, variable, relative */
857 		rdesc[55] = 0x06;
858 	}
859 
860 	if (sc->quirks & MOTION_CONTROLLER)
861 		return motion_fixup(hdev, rdesc, rsize);
862 
863 	if (sc->quirks & PS3REMOTE)
864 		return ps3remote_fixup(hdev, rdesc, rsize);
865 
866 	return rdesc;
867 }
868 
869 static void sixaxis_parse_report(struct sony_sc *sc, u8 *rd, int size)
870 {
871 	static const u8 sixaxis_battery_capacity[] = { 0, 1, 25, 50, 75, 100 };
872 	unsigned long flags;
873 	int offset;
874 	u8 cable_state, battery_capacity, battery_charging;
875 
876 	/*
877 	 * The sixaxis is charging if the battery value is 0xee
878 	 * and it is fully charged if the value is 0xef.
879 	 * It does not report the actual level while charging so it
880 	 * is set to 100% while charging is in progress.
881 	 */
882 	offset = (sc->quirks & MOTION_CONTROLLER) ? 12 : 30;
883 
884 	if (rd[offset] >= 0xee) {
885 		battery_capacity = 100;
886 		battery_charging = !(rd[offset] & 0x01);
887 		cable_state = 1;
888 	} else {
889 		u8 index = rd[offset] <= 5 ? rd[offset] : 5;
890 		battery_capacity = sixaxis_battery_capacity[index];
891 		battery_charging = 0;
892 		cable_state = 0;
893 	}
894 
895 	spin_lock_irqsave(&sc->lock, flags);
896 	sc->cable_state = cable_state;
897 	sc->battery_capacity = battery_capacity;
898 	sc->battery_charging = battery_charging;
899 	spin_unlock_irqrestore(&sc->lock, flags);
900 
901 	if (sc->quirks & SIXAXIS_CONTROLLER) {
902 		int val;
903 
904 		offset = SIXAXIS_INPUT_REPORT_ACC_X_OFFSET;
905 		val = ((rd[offset+1] << 8) | rd[offset]) - 511;
906 		input_report_abs(sc->sensor_dev, ABS_X, val);
907 
908 		/* Y and Z are swapped and inversed */
909 		val = 511 - ((rd[offset+5] << 8) | rd[offset+4]);
910 		input_report_abs(sc->sensor_dev, ABS_Y, val);
911 
912 		val = 511 - ((rd[offset+3] << 8) | rd[offset+2]);
913 		input_report_abs(sc->sensor_dev, ABS_Z, val);
914 
915 		input_sync(sc->sensor_dev);
916 	}
917 }
918 
919 static void dualshock4_parse_report(struct sony_sc *sc, u8 *rd, int size)
920 {
921 	struct hid_input *hidinput = list_entry(sc->hdev->inputs.next,
922 						struct hid_input, list);
923 	struct input_dev *input_dev = hidinput->input;
924 	unsigned long flags;
925 	int n, m, offset, num_touch_data, max_touch_data;
926 	u8 cable_state, battery_capacity, battery_charging;
927 	u16 timestamp;
928 
929 	/* When using Bluetooth the header is 2 bytes longer, so skip these. */
930 	int data_offset = (sc->quirks & DUALSHOCK4_CONTROLLER_BT) ? 2 : 0;
931 
932 	/* Second bit of third button byte is for the touchpad button. */
933 	offset = data_offset + DS4_INPUT_REPORT_BUTTON_OFFSET;
934 	input_report_key(sc->touchpad, BTN_LEFT, rd[offset+2] & 0x2);
935 
936 	/*
937 	 * The default behavior of the Dualshock 4 is to send reports using
938 	 * report type 1 when running over Bluetooth. However, when feature
939 	 * report 2 is requested during the controller initialization it starts
940 	 * sending input reports in report 17. Since report 17 is undefined
941 	 * in the default HID descriptor, the HID layer won't generate events.
942 	 * While it is possible (and this was done before) to fixup the HID
943 	 * descriptor to add this mapping, it was better to do this manually.
944 	 * The reason is there were various pieces software both open and closed
945 	 * source, relying on the descriptors to be the same across various
946 	 * operating systems. If the descriptors wouldn't match some
947 	 * applications e.g. games on Wine would not be able to function due
948 	 * to different descriptors, which such applications are not parsing.
949 	 */
950 	if (rd[0] == 17) {
951 		int value;
952 
953 		offset = data_offset + DS4_INPUT_REPORT_AXIS_OFFSET;
954 		input_report_abs(input_dev, ABS_X, rd[offset]);
955 		input_report_abs(input_dev, ABS_Y, rd[offset+1]);
956 		input_report_abs(input_dev, ABS_RX, rd[offset+2]);
957 		input_report_abs(input_dev, ABS_RY, rd[offset+3]);
958 
959 		value = rd[offset+4] & 0xf;
960 		if (value > 7)
961 			value = 8; /* Center 0, 0 */
962 		input_report_abs(input_dev, ABS_HAT0X, ds4_hat_mapping[value].x);
963 		input_report_abs(input_dev, ABS_HAT0Y, ds4_hat_mapping[value].y);
964 
965 		input_report_key(input_dev, BTN_WEST, rd[offset+4] & 0x10);
966 		input_report_key(input_dev, BTN_SOUTH, rd[offset+4] & 0x20);
967 		input_report_key(input_dev, BTN_EAST, rd[offset+4] & 0x40);
968 		input_report_key(input_dev, BTN_NORTH, rd[offset+4] & 0x80);
969 
970 		input_report_key(input_dev, BTN_TL, rd[offset+5] & 0x1);
971 		input_report_key(input_dev, BTN_TR, rd[offset+5] & 0x2);
972 		input_report_key(input_dev, BTN_TL2, rd[offset+5] & 0x4);
973 		input_report_key(input_dev, BTN_TR2, rd[offset+5] & 0x8);
974 		input_report_key(input_dev, BTN_SELECT, rd[offset+5] & 0x10);
975 		input_report_key(input_dev, BTN_START, rd[offset+5] & 0x20);
976 		input_report_key(input_dev, BTN_THUMBL, rd[offset+5] & 0x40);
977 		input_report_key(input_dev, BTN_THUMBR, rd[offset+5] & 0x80);
978 
979 		input_report_key(input_dev, BTN_MODE, rd[offset+6] & 0x1);
980 
981 		input_report_abs(input_dev, ABS_Z, rd[offset+7]);
982 		input_report_abs(input_dev, ABS_RZ, rd[offset+8]);
983 
984 		input_sync(input_dev);
985 	}
986 
987 	/* Convert timestamp (in 5.33us unit) to timestamp_us */
988 	offset = data_offset + DS4_INPUT_REPORT_TIMESTAMP_OFFSET;
989 	timestamp = get_unaligned_le16(&rd[offset]);
990 	if (!sc->timestamp_initialized) {
991 		sc->timestamp_us = ((unsigned int)timestamp * 16) / 3;
992 		sc->timestamp_initialized = true;
993 	} else {
994 		u16 delta;
995 
996 		if (sc->prev_timestamp > timestamp)
997 			delta = (U16_MAX - sc->prev_timestamp + timestamp + 1);
998 		else
999 			delta = timestamp - sc->prev_timestamp;
1000 		sc->timestamp_us += (delta * 16) / 3;
1001 	}
1002 	sc->prev_timestamp = timestamp;
1003 	input_event(sc->sensor_dev, EV_MSC, MSC_TIMESTAMP, sc->timestamp_us);
1004 
1005 	offset = data_offset + DS4_INPUT_REPORT_GYRO_X_OFFSET;
1006 	for (n = 0; n < 6; n++) {
1007 		/* Store data in int for more precision during mult_frac. */
1008 		int raw_data = (short)((rd[offset+1] << 8) | rd[offset]);
1009 		struct ds4_calibration_data *calib = &sc->ds4_calib_data[n];
1010 
1011 		/* High precision is needed during calibration, but the
1012 		 * calibrated values are within 32-bit.
1013 		 * Note: we swap numerator 'x' and 'numer' in mult_frac for
1014 		 *       precision reasons so we don't need 64-bit.
1015 		 */
1016 		int calib_data = mult_frac(calib->sens_numer,
1017 					   raw_data - calib->bias,
1018 					   calib->sens_denom);
1019 
1020 		input_report_abs(sc->sensor_dev, calib->abs_code, calib_data);
1021 		offset += 2;
1022 	}
1023 	input_sync(sc->sensor_dev);
1024 
1025 	/*
1026 	 * The lower 4 bits of byte 30 (or 32 for BT) contain the battery level
1027 	 * and the 5th bit contains the USB cable state.
1028 	 */
1029 	offset = data_offset + DS4_INPUT_REPORT_BATTERY_OFFSET;
1030 	cable_state = (rd[offset] >> 4) & 0x01;
1031 	battery_capacity = rd[offset] & 0x0F;
1032 
1033 	/*
1034 	 * When a USB power source is connected the battery level ranges from
1035 	 * 0 to 10, and when running on battery power it ranges from 0 to 9.
1036 	 * A battery level above 10 when plugged in means charge completed.
1037 	 */
1038 	if (!cable_state || battery_capacity > 10)
1039 		battery_charging = 0;
1040 	else
1041 		battery_charging = 1;
1042 
1043 	if (!cable_state)
1044 		battery_capacity++;
1045 	if (battery_capacity > 10)
1046 		battery_capacity = 10;
1047 
1048 	battery_capacity *= 10;
1049 
1050 	spin_lock_irqsave(&sc->lock, flags);
1051 	sc->cable_state = cable_state;
1052 	sc->battery_capacity = battery_capacity;
1053 	sc->battery_charging = battery_charging;
1054 	spin_unlock_irqrestore(&sc->lock, flags);
1055 
1056 	/*
1057 	 * The Dualshock 4 multi-touch trackpad data starts at offset 33 on USB
1058 	 * and 35 on Bluetooth.
1059 	 * The first byte indicates the number of touch data in the report.
1060 	 * Trackpad data starts 2 bytes later (e.g. 35 for USB).
1061 	 */
1062 	offset = data_offset + DS4_INPUT_REPORT_TOUCHPAD_OFFSET;
1063 	max_touch_data = (sc->quirks & DUALSHOCK4_CONTROLLER_BT) ? 4 : 3;
1064 	if (rd[offset] > 0 && rd[offset] <= max_touch_data)
1065 		num_touch_data = rd[offset];
1066 	else
1067 		num_touch_data = 1;
1068 	offset += 1;
1069 
1070 	for (m = 0; m < num_touch_data; m++) {
1071 		/* Skip past timestamp */
1072 		offset += 1;
1073 
1074 		/*
1075 		 * The first 7 bits of the first byte is a counter and bit 8 is
1076 		 * a touch indicator that is 0 when pressed and 1 when not
1077 		 * pressed.
1078 		 * The next 3 bytes are two 12 bit touch coordinates, X and Y.
1079 		 * The data for the second touch is in the same format and
1080 		 * immediately follows the data for the first.
1081 		 */
1082 		for (n = 0; n < 2; n++) {
1083 			u16 x, y;
1084 			bool active;
1085 
1086 			x = rd[offset+1] | ((rd[offset+2] & 0xF) << 8);
1087 			y = ((rd[offset+2] & 0xF0) >> 4) | (rd[offset+3] << 4);
1088 
1089 			active = !(rd[offset] >> 7);
1090 			input_mt_slot(sc->touchpad, n);
1091 			input_mt_report_slot_state(sc->touchpad, MT_TOOL_FINGER, active);
1092 
1093 			if (active) {
1094 				input_report_abs(sc->touchpad, ABS_MT_POSITION_X, x);
1095 				input_report_abs(sc->touchpad, ABS_MT_POSITION_Y, y);
1096 			}
1097 
1098 			offset += 4;
1099 		}
1100 		input_mt_sync_frame(sc->touchpad);
1101 		input_sync(sc->touchpad);
1102 	}
1103 }
1104 
1105 static void nsg_mrxu_parse_report(struct sony_sc *sc, u8 *rd, int size)
1106 {
1107 	int n, offset, relx, rely;
1108 	u8 active;
1109 
1110 	/*
1111 	 * The NSG-MRxU multi-touch trackpad data starts at offset 1 and
1112 	 *   the touch-related data starts at offset 2.
1113 	 * For the first byte, bit 0 is set when touchpad button is pressed.
1114 	 * Bit 2 is set when a touch is active and the drag (Fn) key is pressed.
1115 	 * This drag key is mapped to BTN_LEFT.  It is operational only when a
1116 	 *   touch point is active.
1117 	 * Bit 4 is set when only the first touch point is active.
1118 	 * Bit 6 is set when only the second touch point is active.
1119 	 * Bits 5 and 7 are set when both touch points are active.
1120 	 * The next 3 bytes are two 12 bit X/Y coordinates for the first touch.
1121 	 * The following byte, offset 5, has the touch width and length.
1122 	 *   Bits 0-4=X (width), bits 5-7=Y (length).
1123 	 * A signed relative X coordinate is at offset 6.
1124 	 * The bytes at offset 7-9 are the second touch X/Y coordinates.
1125 	 * Offset 10 has the second touch width and length.
1126 	 * Offset 11 has the relative Y coordinate.
1127 	 */
1128 	offset = 1;
1129 
1130 	input_report_key(sc->touchpad, BTN_LEFT, rd[offset] & 0x0F);
1131 	active = (rd[offset] >> 4);
1132 	relx = (s8) rd[offset+5];
1133 	rely = ((s8) rd[offset+10]) * -1;
1134 
1135 	offset++;
1136 
1137 	for (n = 0; n < 2; n++) {
1138 		u16 x, y;
1139 		u8 contactx, contacty;
1140 
1141 		x = rd[offset] | ((rd[offset+1] & 0x0F) << 8);
1142 		y = ((rd[offset+1] & 0xF0) >> 4) | (rd[offset+2] << 4);
1143 
1144 		input_mt_slot(sc->touchpad, n);
1145 		input_mt_report_slot_state(sc->touchpad, MT_TOOL_FINGER, active & 0x03);
1146 
1147 		if (active & 0x03) {
1148 			contactx = rd[offset+3] & 0x0F;
1149 			contacty = rd[offset+3] >> 4;
1150 			input_report_abs(sc->touchpad, ABS_MT_TOUCH_MAJOR,
1151 				max(contactx, contacty));
1152 			input_report_abs(sc->touchpad, ABS_MT_TOUCH_MINOR,
1153 				min(contactx, contacty));
1154 			input_report_abs(sc->touchpad, ABS_MT_ORIENTATION,
1155 				(bool) (contactx > contacty));
1156 			input_report_abs(sc->touchpad, ABS_MT_POSITION_X, x);
1157 			input_report_abs(sc->touchpad, ABS_MT_POSITION_Y,
1158 				NSG_MRXU_MAX_Y - y);
1159 			/*
1160 			 * The relative coordinates belong to the first touch
1161 			 * point, when present, or to the second touch point
1162 			 * when the first is not active.
1163 			 */
1164 			if ((n == 0) || ((n == 1) && (active & 0x01))) {
1165 				input_report_rel(sc->touchpad, REL_X, relx);
1166 				input_report_rel(sc->touchpad, REL_Y, rely);
1167 			}
1168 		}
1169 
1170 		offset += 5;
1171 		active >>= 2;
1172 	}
1173 
1174 	input_mt_sync_frame(sc->touchpad);
1175 
1176 	input_sync(sc->touchpad);
1177 }
1178 
1179 static int sony_raw_event(struct hid_device *hdev, struct hid_report *report,
1180 		u8 *rd, int size)
1181 {
1182 	struct sony_sc *sc = hid_get_drvdata(hdev);
1183 
1184 	/*
1185 	 * Sixaxis HID report has acclerometers/gyro with MSByte first, this
1186 	 * has to be BYTE_SWAPPED before passing up to joystick interface
1187 	 */
1188 	if ((sc->quirks & SIXAXIS_CONTROLLER) && rd[0] == 0x01 && size == 49) {
1189 		/*
1190 		 * When connected via Bluetooth the Sixaxis occasionally sends
1191 		 * a report with the second byte 0xff and the rest zeroed.
1192 		 *
1193 		 * This report does not reflect the actual state of the
1194 		 * controller must be ignored to avoid generating false input
1195 		 * events.
1196 		 */
1197 		if (rd[1] == 0xff)
1198 			return -EINVAL;
1199 
1200 		swap(rd[41], rd[42]);
1201 		swap(rd[43], rd[44]);
1202 		swap(rd[45], rd[46]);
1203 		swap(rd[47], rd[48]);
1204 
1205 		sixaxis_parse_report(sc, rd, size);
1206 	} else if ((sc->quirks & MOTION_CONTROLLER_BT) && rd[0] == 0x01 && size == 49) {
1207 		sixaxis_parse_report(sc, rd, size);
1208 	} else if ((sc->quirks & NAVIGATION_CONTROLLER) && rd[0] == 0x01 &&
1209 			size == 49) {
1210 		sixaxis_parse_report(sc, rd, size);
1211 	} else if ((sc->quirks & DUALSHOCK4_CONTROLLER_USB) && rd[0] == 0x01 &&
1212 			size == 64) {
1213 		dualshock4_parse_report(sc, rd, size);
1214 	} else if (((sc->quirks & DUALSHOCK4_CONTROLLER_BT) && rd[0] == 0x11 &&
1215 			size == 78)) {
1216 		/* CRC check */
1217 		u8 bthdr = 0xA1;
1218 		u32 crc;
1219 		u32 report_crc;
1220 
1221 		crc = crc32_le(0xFFFFFFFF, &bthdr, 1);
1222 		crc = ~crc32_le(crc, rd, DS4_INPUT_REPORT_0x11_SIZE-4);
1223 		report_crc = get_unaligned_le32(&rd[DS4_INPUT_REPORT_0x11_SIZE-4]);
1224 		if (crc != report_crc) {
1225 			hid_dbg(sc->hdev, "DualShock 4 input report's CRC check failed, received crc 0x%0x != 0x%0x\n",
1226 				report_crc, crc);
1227 			return -EILSEQ;
1228 		}
1229 
1230 		dualshock4_parse_report(sc, rd, size);
1231 	} else if ((sc->quirks & DUALSHOCK4_DONGLE) && rd[0] == 0x01 &&
1232 			size == 64) {
1233 		unsigned long flags;
1234 		enum ds4_dongle_state dongle_state;
1235 
1236 		/*
1237 		 * In the case of a DS4 USB dongle, bit[2] of byte 31 indicates
1238 		 * if a DS4 is actually connected (indicated by '0').
1239 		 * For non-dongle, this bit is always 0 (connected).
1240 		 */
1241 		bool connected = (rd[31] & 0x04) ? false : true;
1242 
1243 		spin_lock_irqsave(&sc->lock, flags);
1244 		dongle_state = sc->ds4_dongle_state;
1245 		spin_unlock_irqrestore(&sc->lock, flags);
1246 
1247 		/*
1248 		 * The dongle always sends input reports even when no
1249 		 * DS4 is attached. When a DS4 is connected, we need to
1250 		 * obtain calibration data before we can use it.
1251 		 * The code below tracks dongle state and kicks of
1252 		 * calibration when needed and only allows us to process
1253 		 * input if a DS4 is actually connected.
1254 		 */
1255 		if (dongle_state == DONGLE_DISCONNECTED && connected) {
1256 			hid_info(sc->hdev, "DualShock 4 USB dongle: controller connected\n");
1257 			sony_set_leds(sc);
1258 
1259 			spin_lock_irqsave(&sc->lock, flags);
1260 			sc->ds4_dongle_state = DONGLE_CALIBRATING;
1261 			spin_unlock_irqrestore(&sc->lock, flags);
1262 
1263 			sony_schedule_work(sc, SONY_WORKER_HOTPLUG);
1264 
1265 			/* Don't process the report since we don't have
1266 			 * calibration data, but let hidraw have it anyway.
1267 			 */
1268 			return 0;
1269 		} else if ((dongle_state == DONGLE_CONNECTED ||
1270 			    dongle_state == DONGLE_DISABLED) && !connected) {
1271 			hid_info(sc->hdev, "DualShock 4 USB dongle: controller disconnected\n");
1272 
1273 			spin_lock_irqsave(&sc->lock, flags);
1274 			sc->ds4_dongle_state = DONGLE_DISCONNECTED;
1275 			spin_unlock_irqrestore(&sc->lock, flags);
1276 
1277 			/* Return 0, so hidraw can get the report. */
1278 			return 0;
1279 		} else if (dongle_state == DONGLE_CALIBRATING ||
1280 			   dongle_state == DONGLE_DISABLED ||
1281 			   dongle_state == DONGLE_DISCONNECTED) {
1282 			/* Return 0, so hidraw can get the report. */
1283 			return 0;
1284 		}
1285 
1286 		dualshock4_parse_report(sc, rd, size);
1287 
1288 	} else if ((sc->quirks & NSG_MRXU_REMOTE) && rd[0] == 0x02) {
1289 		nsg_mrxu_parse_report(sc, rd, size);
1290 		return 1;
1291 	}
1292 
1293 	if (sc->defer_initialization) {
1294 		sc->defer_initialization = 0;
1295 		sony_schedule_work(sc, SONY_WORKER_STATE);
1296 	}
1297 
1298 	return 0;
1299 }
1300 
1301 static int sony_mapping(struct hid_device *hdev, struct hid_input *hi,
1302 			struct hid_field *field, struct hid_usage *usage,
1303 			unsigned long **bit, int *max)
1304 {
1305 	struct sony_sc *sc = hid_get_drvdata(hdev);
1306 
1307 	if (sc->quirks & BUZZ_CONTROLLER) {
1308 		unsigned int key = usage->hid & HID_USAGE;
1309 
1310 		if ((usage->hid & HID_USAGE_PAGE) != HID_UP_BUTTON)
1311 			return -1;
1312 
1313 		switch (usage->collection_index) {
1314 		case 1:
1315 			if (key >= ARRAY_SIZE(buzz_keymap))
1316 				return -1;
1317 
1318 			key = buzz_keymap[key];
1319 			if (!key)
1320 				return -1;
1321 			break;
1322 		default:
1323 			return -1;
1324 		}
1325 
1326 		hid_map_usage_clear(hi, usage, bit, max, EV_KEY, key);
1327 		return 1;
1328 	}
1329 
1330 	if (sc->quirks & PS3REMOTE)
1331 		return ps3remote_mapping(hdev, hi, field, usage, bit, max);
1332 
1333 	if (sc->quirks & NAVIGATION_CONTROLLER)
1334 		return navigation_mapping(hdev, hi, field, usage, bit, max);
1335 
1336 	if (sc->quirks & SIXAXIS_CONTROLLER)
1337 		return sixaxis_mapping(hdev, hi, field, usage, bit, max);
1338 
1339 	if (sc->quirks & DUALSHOCK4_CONTROLLER)
1340 		return ds4_mapping(hdev, hi, field, usage, bit, max);
1341 
1342 
1343 	/* Let hid-core decide for the others */
1344 	return 0;
1345 }
1346 
1347 static int sony_register_touchpad(struct sony_sc *sc, int touch_count,
1348 		int w, int h, int touch_major, int touch_minor, int orientation)
1349 {
1350 	size_t name_sz;
1351 	char *name;
1352 	int ret;
1353 
1354 	sc->touchpad = devm_input_allocate_device(&sc->hdev->dev);
1355 	if (!sc->touchpad)
1356 		return -ENOMEM;
1357 
1358 	input_set_drvdata(sc->touchpad, sc);
1359 	sc->touchpad->dev.parent = &sc->hdev->dev;
1360 	sc->touchpad->phys = sc->hdev->phys;
1361 	sc->touchpad->uniq = sc->hdev->uniq;
1362 	sc->touchpad->id.bustype = sc->hdev->bus;
1363 	sc->touchpad->id.vendor = sc->hdev->vendor;
1364 	sc->touchpad->id.product = sc->hdev->product;
1365 	sc->touchpad->id.version = sc->hdev->version;
1366 
1367 	/* Append a suffix to the controller name as there are various
1368 	 * DS4 compatible non-Sony devices with different names.
1369 	 */
1370 	name_sz = strlen(sc->hdev->name) + sizeof(DS4_TOUCHPAD_SUFFIX);
1371 	name = devm_kzalloc(&sc->hdev->dev, name_sz, GFP_KERNEL);
1372 	if (!name)
1373 		return -ENOMEM;
1374 	snprintf(name, name_sz, "%s" DS4_TOUCHPAD_SUFFIX, sc->hdev->name);
1375 	sc->touchpad->name = name;
1376 
1377 	/* We map the button underneath the touchpad to BTN_LEFT. */
1378 	__set_bit(EV_KEY, sc->touchpad->evbit);
1379 	__set_bit(BTN_LEFT, sc->touchpad->keybit);
1380 	__set_bit(INPUT_PROP_BUTTONPAD, sc->touchpad->propbit);
1381 
1382 	input_set_abs_params(sc->touchpad, ABS_MT_POSITION_X, 0, w, 0, 0);
1383 	input_set_abs_params(sc->touchpad, ABS_MT_POSITION_Y, 0, h, 0, 0);
1384 
1385 	if (touch_major > 0) {
1386 		input_set_abs_params(sc->touchpad, ABS_MT_TOUCH_MAJOR,
1387 			0, touch_major, 0, 0);
1388 		if (touch_minor > 0)
1389 			input_set_abs_params(sc->touchpad, ABS_MT_TOUCH_MINOR,
1390 				0, touch_minor, 0, 0);
1391 		if (orientation > 0)
1392 			input_set_abs_params(sc->touchpad, ABS_MT_ORIENTATION,
1393 				0, orientation, 0, 0);
1394 	}
1395 
1396 	if (sc->quirks & NSG_MRXU_REMOTE) {
1397 		__set_bit(EV_REL, sc->touchpad->evbit);
1398 	}
1399 
1400 	ret = input_mt_init_slots(sc->touchpad, touch_count, INPUT_MT_POINTER);
1401 	if (ret < 0)
1402 		return ret;
1403 
1404 	ret = input_register_device(sc->touchpad);
1405 	if (ret < 0)
1406 		return ret;
1407 
1408 	return 0;
1409 }
1410 
1411 static int sony_register_sensors(struct sony_sc *sc)
1412 {
1413 	size_t name_sz;
1414 	char *name;
1415 	int ret;
1416 	int range;
1417 
1418 	sc->sensor_dev = devm_input_allocate_device(&sc->hdev->dev);
1419 	if (!sc->sensor_dev)
1420 		return -ENOMEM;
1421 
1422 	input_set_drvdata(sc->sensor_dev, sc);
1423 	sc->sensor_dev->dev.parent = &sc->hdev->dev;
1424 	sc->sensor_dev->phys = sc->hdev->phys;
1425 	sc->sensor_dev->uniq = sc->hdev->uniq;
1426 	sc->sensor_dev->id.bustype = sc->hdev->bus;
1427 	sc->sensor_dev->id.vendor = sc->hdev->vendor;
1428 	sc->sensor_dev->id.product = sc->hdev->product;
1429 	sc->sensor_dev->id.version = sc->hdev->version;
1430 
1431 	/* Append a suffix to the controller name as there are various
1432 	 * DS4 compatible non-Sony devices with different names.
1433 	 */
1434 	name_sz = strlen(sc->hdev->name) + sizeof(SENSOR_SUFFIX);
1435 	name = devm_kzalloc(&sc->hdev->dev, name_sz, GFP_KERNEL);
1436 	if (!name)
1437 		return -ENOMEM;
1438 	snprintf(name, name_sz, "%s" SENSOR_SUFFIX, sc->hdev->name);
1439 	sc->sensor_dev->name = name;
1440 
1441 	if (sc->quirks & SIXAXIS_CONTROLLER) {
1442 		/* For the DS3 we only support the accelerometer, which works
1443 		 * quite well even without calibration. The device also has
1444 		 * a 1-axis gyro, but it is very difficult to manage from within
1445 		 * the driver even to get data, the sensor is inaccurate and
1446 		 * the behavior is very different between hardware revisions.
1447 		 */
1448 		input_set_abs_params(sc->sensor_dev, ABS_X, -512, 511, 4, 0);
1449 		input_set_abs_params(sc->sensor_dev, ABS_Y, -512, 511, 4, 0);
1450 		input_set_abs_params(sc->sensor_dev, ABS_Z, -512, 511, 4, 0);
1451 		input_abs_set_res(sc->sensor_dev, ABS_X, SIXAXIS_ACC_RES_PER_G);
1452 		input_abs_set_res(sc->sensor_dev, ABS_Y, SIXAXIS_ACC_RES_PER_G);
1453 		input_abs_set_res(sc->sensor_dev, ABS_Z, SIXAXIS_ACC_RES_PER_G);
1454 	} else if (sc->quirks & DUALSHOCK4_CONTROLLER) {
1455 		range = DS4_ACC_RES_PER_G*4;
1456 		input_set_abs_params(sc->sensor_dev, ABS_X, -range, range, 16, 0);
1457 		input_set_abs_params(sc->sensor_dev, ABS_Y, -range, range, 16, 0);
1458 		input_set_abs_params(sc->sensor_dev, ABS_Z, -range, range, 16, 0);
1459 		input_abs_set_res(sc->sensor_dev, ABS_X, DS4_ACC_RES_PER_G);
1460 		input_abs_set_res(sc->sensor_dev, ABS_Y, DS4_ACC_RES_PER_G);
1461 		input_abs_set_res(sc->sensor_dev, ABS_Z, DS4_ACC_RES_PER_G);
1462 
1463 		range = DS4_GYRO_RES_PER_DEG_S*2048;
1464 		input_set_abs_params(sc->sensor_dev, ABS_RX, -range, range, 16, 0);
1465 		input_set_abs_params(sc->sensor_dev, ABS_RY, -range, range, 16, 0);
1466 		input_set_abs_params(sc->sensor_dev, ABS_RZ, -range, range, 16, 0);
1467 		input_abs_set_res(sc->sensor_dev, ABS_RX, DS4_GYRO_RES_PER_DEG_S);
1468 		input_abs_set_res(sc->sensor_dev, ABS_RY, DS4_GYRO_RES_PER_DEG_S);
1469 		input_abs_set_res(sc->sensor_dev, ABS_RZ, DS4_GYRO_RES_PER_DEG_S);
1470 
1471 		__set_bit(EV_MSC, sc->sensor_dev->evbit);
1472 		__set_bit(MSC_TIMESTAMP, sc->sensor_dev->mscbit);
1473 	}
1474 
1475 	__set_bit(INPUT_PROP_ACCELEROMETER, sc->sensor_dev->propbit);
1476 
1477 	ret = input_register_device(sc->sensor_dev);
1478 	if (ret < 0)
1479 		return ret;
1480 
1481 	return 0;
1482 }
1483 
1484 /*
1485  * Sending HID_REQ_GET_REPORT changes the operation mode of the ps3 controller
1486  * to "operational".  Without this, the ps3 controller will not report any
1487  * events.
1488  */
1489 static int sixaxis_set_operational_usb(struct hid_device *hdev)
1490 {
1491 	struct sony_sc *sc = hid_get_drvdata(hdev);
1492 	const int buf_size =
1493 		max(SIXAXIS_REPORT_0xF2_SIZE, SIXAXIS_REPORT_0xF5_SIZE);
1494 	u8 *buf;
1495 	int ret;
1496 
1497 	buf = kmalloc(buf_size, GFP_KERNEL);
1498 	if (!buf)
1499 		return -ENOMEM;
1500 
1501 	ret = hid_hw_raw_request(hdev, 0xf2, buf, SIXAXIS_REPORT_0xF2_SIZE,
1502 				 HID_FEATURE_REPORT, HID_REQ_GET_REPORT);
1503 	if (ret < 0) {
1504 		hid_err(hdev, "can't set operational mode: step 1\n");
1505 		goto out;
1506 	}
1507 
1508 	/*
1509 	 * Some compatible controllers like the Speedlink Strike FX and
1510 	 * Gasia need another query plus an USB interrupt to get operational.
1511 	 */
1512 	ret = hid_hw_raw_request(hdev, 0xf5, buf, SIXAXIS_REPORT_0xF5_SIZE,
1513 				 HID_FEATURE_REPORT, HID_REQ_GET_REPORT);
1514 	if (ret < 0) {
1515 		hid_err(hdev, "can't set operational mode: step 2\n");
1516 		goto out;
1517 	}
1518 
1519 	/*
1520 	 * But the USB interrupt would cause SHANWAN controllers to
1521 	 * start rumbling non-stop, so skip step 3 for these controllers.
1522 	 */
1523 	if (sc->quirks & SHANWAN_GAMEPAD)
1524 		goto out;
1525 
1526 	ret = hid_hw_output_report(hdev, buf, 1);
1527 	if (ret < 0) {
1528 		hid_info(hdev, "can't set operational mode: step 3, ignoring\n");
1529 		ret = 0;
1530 	}
1531 
1532 out:
1533 	kfree(buf);
1534 
1535 	return ret;
1536 }
1537 
1538 static int sixaxis_set_operational_bt(struct hid_device *hdev)
1539 {
1540 	static const u8 report[] = { 0xf4, 0x42, 0x03, 0x00, 0x00 };
1541 	u8 *buf;
1542 	int ret;
1543 
1544 	buf = kmemdup(report, sizeof(report), GFP_KERNEL);
1545 	if (!buf)
1546 		return -ENOMEM;
1547 
1548 	ret = hid_hw_raw_request(hdev, buf[0], buf, sizeof(report),
1549 				  HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
1550 
1551 	kfree(buf);
1552 
1553 	return ret;
1554 }
1555 
1556 /*
1557  * Request DS4 calibration data for the motion sensors.
1558  * For Bluetooth this also affects the operating mode (see below).
1559  */
1560 static int dualshock4_get_calibration_data(struct sony_sc *sc)
1561 {
1562 	u8 *buf;
1563 	int ret;
1564 	short gyro_pitch_bias, gyro_pitch_plus, gyro_pitch_minus;
1565 	short gyro_yaw_bias, gyro_yaw_plus, gyro_yaw_minus;
1566 	short gyro_roll_bias, gyro_roll_plus, gyro_roll_minus;
1567 	short gyro_speed_plus, gyro_speed_minus;
1568 	short acc_x_plus, acc_x_minus;
1569 	short acc_y_plus, acc_y_minus;
1570 	short acc_z_plus, acc_z_minus;
1571 	int speed_2x;
1572 	int range_2g;
1573 
1574 	/* For Bluetooth we use a different request, which supports CRC.
1575 	 * Note: in Bluetooth mode feature report 0x02 also changes the state
1576 	 * of the controller, so that it sends input reports of type 0x11.
1577 	 */
1578 	if (sc->quirks & (DUALSHOCK4_CONTROLLER_USB | DUALSHOCK4_DONGLE)) {
1579 		buf = kmalloc(DS4_FEATURE_REPORT_0x02_SIZE, GFP_KERNEL);
1580 		if (!buf)
1581 			return -ENOMEM;
1582 
1583 		ret = hid_hw_raw_request(sc->hdev, 0x02, buf,
1584 					 DS4_FEATURE_REPORT_0x02_SIZE,
1585 					 HID_FEATURE_REPORT,
1586 					 HID_REQ_GET_REPORT);
1587 		if (ret < 0)
1588 			goto err_stop;
1589 	} else {
1590 		u8 bthdr = 0xA3;
1591 		u32 crc;
1592 		u32 report_crc;
1593 		int retries;
1594 
1595 		buf = kmalloc(DS4_FEATURE_REPORT_0x05_SIZE, GFP_KERNEL);
1596 		if (!buf)
1597 			return -ENOMEM;
1598 
1599 		for (retries = 0; retries < 3; retries++) {
1600 			ret = hid_hw_raw_request(sc->hdev, 0x05, buf,
1601 						 DS4_FEATURE_REPORT_0x05_SIZE,
1602 						 HID_FEATURE_REPORT,
1603 						 HID_REQ_GET_REPORT);
1604 			if (ret < 0)
1605 				goto err_stop;
1606 
1607 			/* CRC check */
1608 			crc = crc32_le(0xFFFFFFFF, &bthdr, 1);
1609 			crc = ~crc32_le(crc, buf, DS4_FEATURE_REPORT_0x05_SIZE-4);
1610 			report_crc = get_unaligned_le32(&buf[DS4_FEATURE_REPORT_0x05_SIZE-4]);
1611 			if (crc != report_crc) {
1612 				hid_warn(sc->hdev, "DualShock 4 calibration report's CRC check failed, received crc 0x%0x != 0x%0x\n",
1613 					report_crc, crc);
1614 				if (retries < 2) {
1615 					hid_warn(sc->hdev, "Retrying DualShock 4 get calibration report request\n");
1616 					continue;
1617 				} else {
1618 					ret = -EILSEQ;
1619 					goto err_stop;
1620 				}
1621 			} else {
1622 				break;
1623 			}
1624 		}
1625 	}
1626 
1627 	gyro_pitch_bias  = get_unaligned_le16(&buf[1]);
1628 	gyro_yaw_bias    = get_unaligned_le16(&buf[3]);
1629 	gyro_roll_bias   = get_unaligned_le16(&buf[5]);
1630 	if (sc->quirks & DUALSHOCK4_CONTROLLER_USB) {
1631 		gyro_pitch_plus  = get_unaligned_le16(&buf[7]);
1632 		gyro_pitch_minus = get_unaligned_le16(&buf[9]);
1633 		gyro_yaw_plus    = get_unaligned_le16(&buf[11]);
1634 		gyro_yaw_minus   = get_unaligned_le16(&buf[13]);
1635 		gyro_roll_plus   = get_unaligned_le16(&buf[15]);
1636 		gyro_roll_minus  = get_unaligned_le16(&buf[17]);
1637 	} else {
1638 		/* BT + Dongle */
1639 		gyro_pitch_plus  = get_unaligned_le16(&buf[7]);
1640 		gyro_yaw_plus    = get_unaligned_le16(&buf[9]);
1641 		gyro_roll_plus   = get_unaligned_le16(&buf[11]);
1642 		gyro_pitch_minus = get_unaligned_le16(&buf[13]);
1643 		gyro_yaw_minus   = get_unaligned_le16(&buf[15]);
1644 		gyro_roll_minus  = get_unaligned_le16(&buf[17]);
1645 	}
1646 	gyro_speed_plus  = get_unaligned_le16(&buf[19]);
1647 	gyro_speed_minus = get_unaligned_le16(&buf[21]);
1648 	acc_x_plus       = get_unaligned_le16(&buf[23]);
1649 	acc_x_minus      = get_unaligned_le16(&buf[25]);
1650 	acc_y_plus       = get_unaligned_le16(&buf[27]);
1651 	acc_y_minus      = get_unaligned_le16(&buf[29]);
1652 	acc_z_plus       = get_unaligned_le16(&buf[31]);
1653 	acc_z_minus      = get_unaligned_le16(&buf[33]);
1654 
1655 	/* Set gyroscope calibration and normalization parameters.
1656 	 * Data values will be normalized to 1/DS4_GYRO_RES_PER_DEG_S degree/s.
1657 	 */
1658 	speed_2x = (gyro_speed_plus + gyro_speed_minus);
1659 	sc->ds4_calib_data[0].abs_code = ABS_RX;
1660 	sc->ds4_calib_data[0].bias = gyro_pitch_bias;
1661 	sc->ds4_calib_data[0].sens_numer = speed_2x*DS4_GYRO_RES_PER_DEG_S;
1662 	sc->ds4_calib_data[0].sens_denom = gyro_pitch_plus - gyro_pitch_minus;
1663 
1664 	sc->ds4_calib_data[1].abs_code = ABS_RY;
1665 	sc->ds4_calib_data[1].bias = gyro_yaw_bias;
1666 	sc->ds4_calib_data[1].sens_numer = speed_2x*DS4_GYRO_RES_PER_DEG_S;
1667 	sc->ds4_calib_data[1].sens_denom = gyro_yaw_plus - gyro_yaw_minus;
1668 
1669 	sc->ds4_calib_data[2].abs_code = ABS_RZ;
1670 	sc->ds4_calib_data[2].bias = gyro_roll_bias;
1671 	sc->ds4_calib_data[2].sens_numer = speed_2x*DS4_GYRO_RES_PER_DEG_S;
1672 	sc->ds4_calib_data[2].sens_denom = gyro_roll_plus - gyro_roll_minus;
1673 
1674 	/* Set accelerometer calibration and normalization parameters.
1675 	 * Data values will be normalized to 1/DS4_ACC_RES_PER_G G.
1676 	 */
1677 	range_2g = acc_x_plus - acc_x_minus;
1678 	sc->ds4_calib_data[3].abs_code = ABS_X;
1679 	sc->ds4_calib_data[3].bias = acc_x_plus - range_2g / 2;
1680 	sc->ds4_calib_data[3].sens_numer = 2*DS4_ACC_RES_PER_G;
1681 	sc->ds4_calib_data[3].sens_denom = range_2g;
1682 
1683 	range_2g = acc_y_plus - acc_y_minus;
1684 	sc->ds4_calib_data[4].abs_code = ABS_Y;
1685 	sc->ds4_calib_data[4].bias = acc_y_plus - range_2g / 2;
1686 	sc->ds4_calib_data[4].sens_numer = 2*DS4_ACC_RES_PER_G;
1687 	sc->ds4_calib_data[4].sens_denom = range_2g;
1688 
1689 	range_2g = acc_z_plus - acc_z_minus;
1690 	sc->ds4_calib_data[5].abs_code = ABS_Z;
1691 	sc->ds4_calib_data[5].bias = acc_z_plus - range_2g / 2;
1692 	sc->ds4_calib_data[5].sens_numer = 2*DS4_ACC_RES_PER_G;
1693 	sc->ds4_calib_data[5].sens_denom = range_2g;
1694 
1695 err_stop:
1696 	kfree(buf);
1697 	return ret;
1698 }
1699 
1700 static void dualshock4_calibration_work(struct work_struct *work)
1701 {
1702 	struct sony_sc *sc = container_of(work, struct sony_sc, hotplug_worker);
1703 	unsigned long flags;
1704 	enum ds4_dongle_state dongle_state;
1705 	int ret;
1706 
1707 	ret = dualshock4_get_calibration_data(sc);
1708 	if (ret < 0) {
1709 		/* This call is very unlikely to fail for the dongle. When it
1710 		 * fails we are probably in a very bad state, so mark the
1711 		 * dongle as disabled. We will re-enable the dongle if a new
1712 		 * DS4 hotplug is detect from sony_raw_event as any issues
1713 		 * are likely resolved then (the dongle is quite stupid).
1714 		 */
1715 		hid_err(sc->hdev, "DualShock 4 USB dongle: calibration failed, disabling device\n");
1716 		dongle_state = DONGLE_DISABLED;
1717 	} else {
1718 		hid_info(sc->hdev, "DualShock 4 USB dongle: calibration completed\n");
1719 		dongle_state = DONGLE_CONNECTED;
1720 	}
1721 
1722 	spin_lock_irqsave(&sc->lock, flags);
1723 	sc->ds4_dongle_state = dongle_state;
1724 	spin_unlock_irqrestore(&sc->lock, flags);
1725 }
1726 
1727 static int dualshock4_get_version_info(struct sony_sc *sc)
1728 {
1729 	u8 *buf;
1730 	int ret;
1731 
1732 	buf = kmalloc(DS4_FEATURE_REPORT_0xA3_SIZE, GFP_KERNEL);
1733 	if (!buf)
1734 		return -ENOMEM;
1735 
1736 	ret = hid_hw_raw_request(sc->hdev, 0xA3, buf,
1737 				 DS4_FEATURE_REPORT_0xA3_SIZE,
1738 				 HID_FEATURE_REPORT,
1739 				 HID_REQ_GET_REPORT);
1740 	if (ret < 0) {
1741 		kfree(buf);
1742 		return ret;
1743 	}
1744 
1745 	sc->hw_version = get_unaligned_le16(&buf[35]);
1746 	sc->fw_version = get_unaligned_le16(&buf[41]);
1747 
1748 	kfree(buf);
1749 	return 0;
1750 }
1751 
1752 static void sixaxis_set_leds_from_id(struct sony_sc *sc)
1753 {
1754 	static const u8 sixaxis_leds[10][4] = {
1755 				{ 0x01, 0x00, 0x00, 0x00 },
1756 				{ 0x00, 0x01, 0x00, 0x00 },
1757 				{ 0x00, 0x00, 0x01, 0x00 },
1758 				{ 0x00, 0x00, 0x00, 0x01 },
1759 				{ 0x01, 0x00, 0x00, 0x01 },
1760 				{ 0x00, 0x01, 0x00, 0x01 },
1761 				{ 0x00, 0x00, 0x01, 0x01 },
1762 				{ 0x01, 0x00, 0x01, 0x01 },
1763 				{ 0x00, 0x01, 0x01, 0x01 },
1764 				{ 0x01, 0x01, 0x01, 0x01 }
1765 	};
1766 
1767 	int id = sc->device_id;
1768 
1769 	BUILD_BUG_ON(MAX_LEDS < ARRAY_SIZE(sixaxis_leds[0]));
1770 
1771 	if (id < 0)
1772 		return;
1773 
1774 	id %= 10;
1775 	memcpy(sc->led_state, sixaxis_leds[id], sizeof(sixaxis_leds[id]));
1776 }
1777 
1778 static void dualshock4_set_leds_from_id(struct sony_sc *sc)
1779 {
1780 	/* The first 4 color/index entries match what the PS4 assigns */
1781 	static const u8 color_code[7][3] = {
1782 			/* Blue   */	{ 0x00, 0x00, 0x40 },
1783 			/* Red	  */	{ 0x40, 0x00, 0x00 },
1784 			/* Green  */	{ 0x00, 0x40, 0x00 },
1785 			/* Pink   */	{ 0x20, 0x00, 0x20 },
1786 			/* Orange */	{ 0x02, 0x01, 0x00 },
1787 			/* Teal   */	{ 0x00, 0x01, 0x01 },
1788 			/* White  */	{ 0x01, 0x01, 0x01 }
1789 	};
1790 
1791 	int id = sc->device_id;
1792 
1793 	BUILD_BUG_ON(MAX_LEDS < ARRAY_SIZE(color_code[0]));
1794 
1795 	if (id < 0)
1796 		return;
1797 
1798 	id %= 7;
1799 	memcpy(sc->led_state, color_code[id], sizeof(color_code[id]));
1800 }
1801 
1802 static void buzz_set_leds(struct sony_sc *sc)
1803 {
1804 	struct hid_device *hdev = sc->hdev;
1805 	struct list_head *report_list =
1806 		&hdev->report_enum[HID_OUTPUT_REPORT].report_list;
1807 	struct hid_report *report = list_entry(report_list->next,
1808 		struct hid_report, list);
1809 	s32 *value = report->field[0]->value;
1810 
1811 	BUILD_BUG_ON(MAX_LEDS < 4);
1812 
1813 	value[0] = 0x00;
1814 	value[1] = sc->led_state[0] ? 0xff : 0x00;
1815 	value[2] = sc->led_state[1] ? 0xff : 0x00;
1816 	value[3] = sc->led_state[2] ? 0xff : 0x00;
1817 	value[4] = sc->led_state[3] ? 0xff : 0x00;
1818 	value[5] = 0x00;
1819 	value[6] = 0x00;
1820 	hid_hw_request(hdev, report, HID_REQ_SET_REPORT);
1821 }
1822 
1823 static void sony_set_leds(struct sony_sc *sc)
1824 {
1825 	if (!(sc->quirks & BUZZ_CONTROLLER))
1826 		sony_schedule_work(sc, SONY_WORKER_STATE);
1827 	else
1828 		buzz_set_leds(sc);
1829 }
1830 
1831 static void sony_led_set_brightness(struct led_classdev *led,
1832 				    enum led_brightness value)
1833 {
1834 	struct device *dev = led->dev->parent;
1835 	struct hid_device *hdev = to_hid_device(dev);
1836 	struct sony_sc *drv_data;
1837 
1838 	int n;
1839 	int force_update;
1840 
1841 	drv_data = hid_get_drvdata(hdev);
1842 	if (!drv_data) {
1843 		hid_err(hdev, "No device data\n");
1844 		return;
1845 	}
1846 
1847 	/*
1848 	 * The Sixaxis on USB will override any LED settings sent to it
1849 	 * and keep flashing all of the LEDs until the PS button is pressed.
1850 	 * Updates, even if redundant, must be always be sent to the
1851 	 * controller to avoid having to toggle the state of an LED just to
1852 	 * stop the flashing later on.
1853 	 */
1854 	force_update = !!(drv_data->quirks & SIXAXIS_CONTROLLER_USB);
1855 
1856 	for (n = 0; n < drv_data->led_count; n++) {
1857 		if (led == drv_data->leds[n] && (force_update ||
1858 			(value != drv_data->led_state[n] ||
1859 			drv_data->led_delay_on[n] ||
1860 			drv_data->led_delay_off[n]))) {
1861 
1862 			drv_data->led_state[n] = value;
1863 
1864 			/* Setting the brightness stops the blinking */
1865 			drv_data->led_delay_on[n] = 0;
1866 			drv_data->led_delay_off[n] = 0;
1867 
1868 			sony_set_leds(drv_data);
1869 			break;
1870 		}
1871 	}
1872 }
1873 
1874 static enum led_brightness sony_led_get_brightness(struct led_classdev *led)
1875 {
1876 	struct device *dev = led->dev->parent;
1877 	struct hid_device *hdev = to_hid_device(dev);
1878 	struct sony_sc *drv_data;
1879 
1880 	int n;
1881 
1882 	drv_data = hid_get_drvdata(hdev);
1883 	if (!drv_data) {
1884 		hid_err(hdev, "No device data\n");
1885 		return LED_OFF;
1886 	}
1887 
1888 	for (n = 0; n < drv_data->led_count; n++) {
1889 		if (led == drv_data->leds[n])
1890 			return drv_data->led_state[n];
1891 	}
1892 
1893 	return LED_OFF;
1894 }
1895 
1896 static int sony_led_blink_set(struct led_classdev *led, unsigned long *delay_on,
1897 				unsigned long *delay_off)
1898 {
1899 	struct device *dev = led->dev->parent;
1900 	struct hid_device *hdev = to_hid_device(dev);
1901 	struct sony_sc *drv_data = hid_get_drvdata(hdev);
1902 	int n;
1903 	u8 new_on, new_off;
1904 
1905 	if (!drv_data) {
1906 		hid_err(hdev, "No device data\n");
1907 		return -EINVAL;
1908 	}
1909 
1910 	/* Max delay is 255 deciseconds or 2550 milliseconds */
1911 	if (*delay_on > 2550)
1912 		*delay_on = 2550;
1913 	if (*delay_off > 2550)
1914 		*delay_off = 2550;
1915 
1916 	/* Blink at 1 Hz if both values are zero */
1917 	if (!*delay_on && !*delay_off)
1918 		*delay_on = *delay_off = 500;
1919 
1920 	new_on = *delay_on / 10;
1921 	new_off = *delay_off / 10;
1922 
1923 	for (n = 0; n < drv_data->led_count; n++) {
1924 		if (led == drv_data->leds[n])
1925 			break;
1926 	}
1927 
1928 	/* This LED is not registered on this device */
1929 	if (n >= drv_data->led_count)
1930 		return -EINVAL;
1931 
1932 	/* Don't schedule work if the values didn't change */
1933 	if (new_on != drv_data->led_delay_on[n] ||
1934 		new_off != drv_data->led_delay_off[n]) {
1935 		drv_data->led_delay_on[n] = new_on;
1936 		drv_data->led_delay_off[n] = new_off;
1937 		sony_schedule_work(drv_data, SONY_WORKER_STATE);
1938 	}
1939 
1940 	return 0;
1941 }
1942 
1943 static int sony_leds_init(struct sony_sc *sc)
1944 {
1945 	struct hid_device *hdev = sc->hdev;
1946 	int n, ret = 0;
1947 	int use_ds4_names;
1948 	struct led_classdev *led;
1949 	size_t name_sz;
1950 	char *name;
1951 	size_t name_len;
1952 	const char *name_fmt;
1953 	static const char * const ds4_name_str[] = { "red", "green", "blue",
1954 						  "global" };
1955 	u8 max_brightness[MAX_LEDS] = { [0 ... (MAX_LEDS - 1)] = 1 };
1956 	u8 use_hw_blink[MAX_LEDS] = { 0 };
1957 
1958 	BUG_ON(!(sc->quirks & SONY_LED_SUPPORT));
1959 
1960 	if (sc->quirks & BUZZ_CONTROLLER) {
1961 		sc->led_count = 4;
1962 		use_ds4_names = 0;
1963 		name_len = strlen("::buzz#");
1964 		name_fmt = "%s::buzz%d";
1965 		/* Validate expected report characteristics. */
1966 		if (!hid_validate_values(hdev, HID_OUTPUT_REPORT, 0, 0, 7))
1967 			return -ENODEV;
1968 	} else if (sc->quirks & DUALSHOCK4_CONTROLLER) {
1969 		dualshock4_set_leds_from_id(sc);
1970 		sc->led_state[3] = 1;
1971 		sc->led_count = 4;
1972 		memset(max_brightness, 255, 3);
1973 		use_hw_blink[3] = 1;
1974 		use_ds4_names = 1;
1975 		name_len = 0;
1976 		name_fmt = "%s:%s";
1977 	} else if (sc->quirks & MOTION_CONTROLLER) {
1978 		sc->led_count = 3;
1979 		memset(max_brightness, 255, 3);
1980 		use_ds4_names = 1;
1981 		name_len = 0;
1982 		name_fmt = "%s:%s";
1983 	} else if (sc->quirks & NAVIGATION_CONTROLLER) {
1984 		static const u8 navigation_leds[4] = {0x01, 0x00, 0x00, 0x00};
1985 
1986 		memcpy(sc->led_state, navigation_leds, sizeof(navigation_leds));
1987 		sc->led_count = 1;
1988 		memset(use_hw_blink, 1, 4);
1989 		use_ds4_names = 0;
1990 		name_len = strlen("::sony#");
1991 		name_fmt = "%s::sony%d";
1992 	} else {
1993 		sixaxis_set_leds_from_id(sc);
1994 		sc->led_count = 4;
1995 		memset(use_hw_blink, 1, 4);
1996 		use_ds4_names = 0;
1997 		name_len = strlen("::sony#");
1998 		name_fmt = "%s::sony%d";
1999 	}
2000 
2001 	/*
2002 	 * Clear LEDs as we have no way of reading their initial state. This is
2003 	 * only relevant if the driver is loaded after somebody actively set the
2004 	 * LEDs to on
2005 	 */
2006 	sony_set_leds(sc);
2007 
2008 	name_sz = strlen(dev_name(&hdev->dev)) + name_len + 1;
2009 
2010 	for (n = 0; n < sc->led_count; n++) {
2011 
2012 		if (use_ds4_names)
2013 			name_sz = strlen(dev_name(&hdev->dev)) + strlen(ds4_name_str[n]) + 2;
2014 
2015 		led = devm_kzalloc(&hdev->dev, sizeof(struct led_classdev) + name_sz, GFP_KERNEL);
2016 		if (!led) {
2017 			hid_err(hdev, "Couldn't allocate memory for LED %d\n", n);
2018 			return -ENOMEM;
2019 		}
2020 
2021 		name = (void *)(&led[1]);
2022 		if (use_ds4_names)
2023 			snprintf(name, name_sz, name_fmt, dev_name(&hdev->dev),
2024 			ds4_name_str[n]);
2025 		else
2026 			snprintf(name, name_sz, name_fmt, dev_name(&hdev->dev), n + 1);
2027 		led->name = name;
2028 		led->brightness = sc->led_state[n];
2029 		led->max_brightness = max_brightness[n];
2030 		led->flags = LED_CORE_SUSPENDRESUME;
2031 		led->brightness_get = sony_led_get_brightness;
2032 		led->brightness_set = sony_led_set_brightness;
2033 
2034 		if (use_hw_blink[n])
2035 			led->blink_set = sony_led_blink_set;
2036 
2037 		sc->leds[n] = led;
2038 
2039 		ret = devm_led_classdev_register(&hdev->dev, led);
2040 		if (ret) {
2041 			hid_err(hdev, "Failed to register LED %d\n", n);
2042 			return ret;
2043 		}
2044 	}
2045 
2046 	return 0;
2047 }
2048 
2049 static void sixaxis_send_output_report(struct sony_sc *sc)
2050 {
2051 	static const union sixaxis_output_report_01 default_report = {
2052 		.buf = {
2053 			0x01,
2054 			0x01, 0xff, 0x00, 0xff, 0x00,
2055 			0x00, 0x00, 0x00, 0x00, 0x00,
2056 			0xff, 0x27, 0x10, 0x00, 0x32,
2057 			0xff, 0x27, 0x10, 0x00, 0x32,
2058 			0xff, 0x27, 0x10, 0x00, 0x32,
2059 			0xff, 0x27, 0x10, 0x00, 0x32,
2060 			0x00, 0x00, 0x00, 0x00, 0x00
2061 		}
2062 	};
2063 	struct sixaxis_output_report *report =
2064 		(struct sixaxis_output_report *)sc->output_report_dmabuf;
2065 	int n;
2066 
2067 	/* Initialize the report with default values */
2068 	memcpy(report, &default_report, sizeof(struct sixaxis_output_report));
2069 
2070 #ifdef CONFIG_SONY_FF
2071 	report->rumble.right_motor_on = sc->right ? 1 : 0;
2072 	report->rumble.left_motor_force = sc->left;
2073 #endif
2074 
2075 	report->leds_bitmap |= sc->led_state[0] << 1;
2076 	report->leds_bitmap |= sc->led_state[1] << 2;
2077 	report->leds_bitmap |= sc->led_state[2] << 3;
2078 	report->leds_bitmap |= sc->led_state[3] << 4;
2079 
2080 	/* Set flag for all leds off, required for 3rd party INTEC controller */
2081 	if ((report->leds_bitmap & 0x1E) == 0)
2082 		report->leds_bitmap |= 0x20;
2083 
2084 	/*
2085 	 * The LEDs in the report are indexed in reverse order to their
2086 	 * corresponding light on the controller.
2087 	 * Index 0 = LED 4, index 1 = LED 3, etc...
2088 	 *
2089 	 * In the case of both delay values being zero (blinking disabled) the
2090 	 * default report values should be used or the controller LED will be
2091 	 * always off.
2092 	 */
2093 	for (n = 0; n < 4; n++) {
2094 		if (sc->led_delay_on[n] || sc->led_delay_off[n]) {
2095 			report->led[3 - n].duty_off = sc->led_delay_off[n];
2096 			report->led[3 - n].duty_on = sc->led_delay_on[n];
2097 		}
2098 	}
2099 
2100 	/* SHANWAN controllers require output reports via intr channel */
2101 	if (sc->quirks & SHANWAN_GAMEPAD)
2102 		hid_hw_output_report(sc->hdev, (u8 *)report,
2103 				sizeof(struct sixaxis_output_report));
2104 	else
2105 		hid_hw_raw_request(sc->hdev, report->report_id, (u8 *)report,
2106 				sizeof(struct sixaxis_output_report),
2107 				HID_OUTPUT_REPORT, HID_REQ_SET_REPORT);
2108 }
2109 
2110 static void dualshock4_send_output_report(struct sony_sc *sc)
2111 {
2112 	struct hid_device *hdev = sc->hdev;
2113 	u8 *buf = sc->output_report_dmabuf;
2114 	int offset;
2115 
2116 	/*
2117 	 * NOTE: The lower 6 bits of buf[1] field of the Bluetooth report
2118 	 * control the interval at which Dualshock 4 reports data:
2119 	 * 0x00 - 1ms
2120 	 * 0x01 - 1ms
2121 	 * 0x02 - 2ms
2122 	 * 0x3E - 62ms
2123 	 * 0x3F - disabled
2124 	 */
2125 	if (sc->quirks & (DUALSHOCK4_CONTROLLER_USB | DUALSHOCK4_DONGLE)) {
2126 		memset(buf, 0, DS4_OUTPUT_REPORT_0x05_SIZE);
2127 		buf[0] = 0x05;
2128 		buf[1] = 0x07; /* blink + LEDs + motor */
2129 		offset = 4;
2130 	} else {
2131 		memset(buf, 0, DS4_OUTPUT_REPORT_0x11_SIZE);
2132 		buf[0] = 0x11;
2133 		buf[1] = 0xC0 /* HID + CRC */ | sc->ds4_bt_poll_interval;
2134 		buf[3] = 0x07; /* blink + LEDs + motor */
2135 		offset = 6;
2136 	}
2137 
2138 #ifdef CONFIG_SONY_FF
2139 	buf[offset++] = sc->right;
2140 	buf[offset++] = sc->left;
2141 #else
2142 	offset += 2;
2143 #endif
2144 
2145 	/* LED 3 is the global control */
2146 	if (sc->led_state[3]) {
2147 		buf[offset++] = sc->led_state[0];
2148 		buf[offset++] = sc->led_state[1];
2149 		buf[offset++] = sc->led_state[2];
2150 	} else {
2151 		offset += 3;
2152 	}
2153 
2154 	/* If both delay values are zero the DualShock 4 disables blinking. */
2155 	buf[offset++] = sc->led_delay_on[3];
2156 	buf[offset++] = sc->led_delay_off[3];
2157 
2158 	if (sc->quirks & (DUALSHOCK4_CONTROLLER_USB | DUALSHOCK4_DONGLE))
2159 		hid_hw_output_report(hdev, buf, DS4_OUTPUT_REPORT_0x05_SIZE);
2160 	else {
2161 		/* CRC generation */
2162 		u8 bthdr = 0xA2;
2163 		u32 crc;
2164 
2165 		crc = crc32_le(0xFFFFFFFF, &bthdr, 1);
2166 		crc = ~crc32_le(crc, buf, DS4_OUTPUT_REPORT_0x11_SIZE-4);
2167 		put_unaligned_le32(crc, &buf[74]);
2168 		hid_hw_output_report(hdev, buf, DS4_OUTPUT_REPORT_0x11_SIZE);
2169 	}
2170 }
2171 
2172 static void motion_send_output_report(struct sony_sc *sc)
2173 {
2174 	struct hid_device *hdev = sc->hdev;
2175 	struct motion_output_report_02 *report =
2176 		(struct motion_output_report_02 *)sc->output_report_dmabuf;
2177 
2178 	memset(report, 0, MOTION_REPORT_0x02_SIZE);
2179 
2180 	report->type = 0x02; /* set leds */
2181 	report->r = sc->led_state[0];
2182 	report->g = sc->led_state[1];
2183 	report->b = sc->led_state[2];
2184 
2185 #ifdef CONFIG_SONY_FF
2186 	report->rumble = max(sc->right, sc->left);
2187 #endif
2188 
2189 	hid_hw_output_report(hdev, (u8 *)report, MOTION_REPORT_0x02_SIZE);
2190 }
2191 
2192 static inline void sony_send_output_report(struct sony_sc *sc)
2193 {
2194 	if (sc->send_output_report)
2195 		sc->send_output_report(sc);
2196 }
2197 
2198 static void sony_state_worker(struct work_struct *work)
2199 {
2200 	struct sony_sc *sc = container_of(work, struct sony_sc, state_worker);
2201 
2202 	sc->send_output_report(sc);
2203 }
2204 
2205 static int sony_allocate_output_report(struct sony_sc *sc)
2206 {
2207 	if ((sc->quirks & SIXAXIS_CONTROLLER) ||
2208 			(sc->quirks & NAVIGATION_CONTROLLER))
2209 		sc->output_report_dmabuf =
2210 			devm_kmalloc(&sc->hdev->dev,
2211 				sizeof(union sixaxis_output_report_01),
2212 				GFP_KERNEL);
2213 	else if (sc->quirks & DUALSHOCK4_CONTROLLER_BT)
2214 		sc->output_report_dmabuf = devm_kmalloc(&sc->hdev->dev,
2215 						DS4_OUTPUT_REPORT_0x11_SIZE,
2216 						GFP_KERNEL);
2217 	else if (sc->quirks & (DUALSHOCK4_CONTROLLER_USB | DUALSHOCK4_DONGLE))
2218 		sc->output_report_dmabuf = devm_kmalloc(&sc->hdev->dev,
2219 						DS4_OUTPUT_REPORT_0x05_SIZE,
2220 						GFP_KERNEL);
2221 	else if (sc->quirks & MOTION_CONTROLLER)
2222 		sc->output_report_dmabuf = devm_kmalloc(&sc->hdev->dev,
2223 						MOTION_REPORT_0x02_SIZE,
2224 						GFP_KERNEL);
2225 	else
2226 		return 0;
2227 
2228 	if (!sc->output_report_dmabuf)
2229 		return -ENOMEM;
2230 
2231 	return 0;
2232 }
2233 
2234 #ifdef CONFIG_SONY_FF
2235 static int sony_play_effect(struct input_dev *dev, void *data,
2236 			    struct ff_effect *effect)
2237 {
2238 	struct hid_device *hid = input_get_drvdata(dev);
2239 	struct sony_sc *sc = hid_get_drvdata(hid);
2240 
2241 	if (effect->type != FF_RUMBLE)
2242 		return 0;
2243 
2244 	sc->left = effect->u.rumble.strong_magnitude / 256;
2245 	sc->right = effect->u.rumble.weak_magnitude / 256;
2246 
2247 	sony_schedule_work(sc, SONY_WORKER_STATE);
2248 	return 0;
2249 }
2250 
2251 static int sony_init_ff(struct sony_sc *sc)
2252 {
2253 	struct hid_input *hidinput = list_entry(sc->hdev->inputs.next,
2254 						struct hid_input, list);
2255 	struct input_dev *input_dev = hidinput->input;
2256 
2257 	input_set_capability(input_dev, EV_FF, FF_RUMBLE);
2258 	return input_ff_create_memless(input_dev, NULL, sony_play_effect);
2259 }
2260 
2261 #else
2262 static int sony_init_ff(struct sony_sc *sc)
2263 {
2264 	return 0;
2265 }
2266 
2267 #endif
2268 
2269 static int sony_battery_get_property(struct power_supply *psy,
2270 				     enum power_supply_property psp,
2271 				     union power_supply_propval *val)
2272 {
2273 	struct sony_sc *sc = power_supply_get_drvdata(psy);
2274 	unsigned long flags;
2275 	int ret = 0;
2276 	u8 battery_charging, battery_capacity, cable_state;
2277 
2278 	spin_lock_irqsave(&sc->lock, flags);
2279 	battery_charging = sc->battery_charging;
2280 	battery_capacity = sc->battery_capacity;
2281 	cable_state = sc->cable_state;
2282 	spin_unlock_irqrestore(&sc->lock, flags);
2283 
2284 	switch (psp) {
2285 	case POWER_SUPPLY_PROP_PRESENT:
2286 		val->intval = 1;
2287 		break;
2288 	case POWER_SUPPLY_PROP_SCOPE:
2289 		val->intval = POWER_SUPPLY_SCOPE_DEVICE;
2290 		break;
2291 	case POWER_SUPPLY_PROP_CAPACITY:
2292 		val->intval = battery_capacity;
2293 		break;
2294 	case POWER_SUPPLY_PROP_STATUS:
2295 		if (battery_charging)
2296 			val->intval = POWER_SUPPLY_STATUS_CHARGING;
2297 		else
2298 			if (battery_capacity == 100 && cable_state)
2299 				val->intval = POWER_SUPPLY_STATUS_FULL;
2300 			else
2301 				val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
2302 		break;
2303 	default:
2304 		ret = -EINVAL;
2305 		break;
2306 	}
2307 	return ret;
2308 }
2309 
2310 static int sony_battery_probe(struct sony_sc *sc, int append_dev_id)
2311 {
2312 	const char *battery_str_fmt = append_dev_id ?
2313 		"sony_controller_battery_%pMR_%i" :
2314 		"sony_controller_battery_%pMR";
2315 	struct power_supply_config psy_cfg = { .drv_data = sc, };
2316 	struct hid_device *hdev = sc->hdev;
2317 	int ret;
2318 
2319 	/*
2320 	 * Set the default battery level to 100% to avoid low battery warnings
2321 	 * if the battery is polled before the first device report is received.
2322 	 */
2323 	sc->battery_capacity = 100;
2324 
2325 	sc->battery_desc.properties = sony_battery_props;
2326 	sc->battery_desc.num_properties = ARRAY_SIZE(sony_battery_props);
2327 	sc->battery_desc.get_property = sony_battery_get_property;
2328 	sc->battery_desc.type = POWER_SUPPLY_TYPE_BATTERY;
2329 	sc->battery_desc.use_for_apm = 0;
2330 	sc->battery_desc.name = devm_kasprintf(&hdev->dev, GFP_KERNEL,
2331 					  battery_str_fmt, sc->mac_address, sc->device_id);
2332 	if (!sc->battery_desc.name)
2333 		return -ENOMEM;
2334 
2335 	sc->battery = devm_power_supply_register(&hdev->dev, &sc->battery_desc,
2336 					    &psy_cfg);
2337 	if (IS_ERR(sc->battery)) {
2338 		ret = PTR_ERR(sc->battery);
2339 		hid_err(hdev, "Unable to register battery device\n");
2340 		return ret;
2341 	}
2342 
2343 	power_supply_powers(sc->battery, &hdev->dev);
2344 	return 0;
2345 }
2346 
2347 /*
2348  * If a controller is plugged in via USB while already connected via Bluetooth
2349  * it will show up as two devices. A global list of connected controllers and
2350  * their MAC addresses is maintained to ensure that a device is only connected
2351  * once.
2352  *
2353  * Some USB-only devices masquerade as Sixaxis controllers and all have the
2354  * same dummy Bluetooth address, so a comparison of the connection type is
2355  * required.  Devices are only rejected in the case where two devices have
2356  * matching Bluetooth addresses on different bus types.
2357  */
2358 static inline int sony_compare_connection_type(struct sony_sc *sc0,
2359 						struct sony_sc *sc1)
2360 {
2361 	const int sc0_not_bt = !(sc0->quirks & SONY_BT_DEVICE);
2362 	const int sc1_not_bt = !(sc1->quirks & SONY_BT_DEVICE);
2363 
2364 	return sc0_not_bt == sc1_not_bt;
2365 }
2366 
2367 static int sony_check_add_dev_list(struct sony_sc *sc)
2368 {
2369 	struct sony_sc *entry;
2370 	unsigned long flags;
2371 	int ret;
2372 
2373 	spin_lock_irqsave(&sony_dev_list_lock, flags);
2374 
2375 	list_for_each_entry(entry, &sony_device_list, list_node) {
2376 		ret = memcmp(sc->mac_address, entry->mac_address,
2377 				sizeof(sc->mac_address));
2378 		if (!ret) {
2379 			if (sony_compare_connection_type(sc, entry)) {
2380 				ret = 1;
2381 			} else {
2382 				ret = -EEXIST;
2383 				hid_info(sc->hdev,
2384 				"controller with MAC address %pMR already connected\n",
2385 				sc->mac_address);
2386 			}
2387 			goto unlock;
2388 		}
2389 	}
2390 
2391 	ret = 0;
2392 	list_add(&(sc->list_node), &sony_device_list);
2393 
2394 unlock:
2395 	spin_unlock_irqrestore(&sony_dev_list_lock, flags);
2396 	return ret;
2397 }
2398 
2399 static void sony_remove_dev_list(struct sony_sc *sc)
2400 {
2401 	unsigned long flags;
2402 
2403 	if (sc->list_node.next) {
2404 		spin_lock_irqsave(&sony_dev_list_lock, flags);
2405 		list_del(&(sc->list_node));
2406 		spin_unlock_irqrestore(&sony_dev_list_lock, flags);
2407 	}
2408 }
2409 
2410 static int sony_get_bt_devaddr(struct sony_sc *sc)
2411 {
2412 	int ret;
2413 
2414 	/* HIDP stores the device MAC address as a string in the uniq field. */
2415 	ret = strlen(sc->hdev->uniq);
2416 	if (ret != 17)
2417 		return -EINVAL;
2418 
2419 	ret = sscanf(sc->hdev->uniq,
2420 		"%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx",
2421 		&sc->mac_address[5], &sc->mac_address[4], &sc->mac_address[3],
2422 		&sc->mac_address[2], &sc->mac_address[1], &sc->mac_address[0]);
2423 
2424 	if (ret != 6)
2425 		return -EINVAL;
2426 
2427 	return 0;
2428 }
2429 
2430 static int sony_check_add(struct sony_sc *sc)
2431 {
2432 	u8 *buf = NULL;
2433 	int n, ret;
2434 
2435 	if ((sc->quirks & DUALSHOCK4_CONTROLLER_BT) ||
2436 	    (sc->quirks & MOTION_CONTROLLER_BT) ||
2437 	    (sc->quirks & NAVIGATION_CONTROLLER_BT) ||
2438 	    (sc->quirks & SIXAXIS_CONTROLLER_BT)) {
2439 		/*
2440 		 * sony_get_bt_devaddr() attempts to parse the Bluetooth MAC
2441 		 * address from the uniq string where HIDP stores it.
2442 		 * As uniq cannot be guaranteed to be a MAC address in all cases
2443 		 * a failure of this function should not prevent the connection.
2444 		 */
2445 		if (sony_get_bt_devaddr(sc) < 0) {
2446 			hid_warn(sc->hdev, "UNIQ does not contain a MAC address; duplicate check skipped\n");
2447 			return 0;
2448 		}
2449 	} else if (sc->quirks & (DUALSHOCK4_CONTROLLER_USB | DUALSHOCK4_DONGLE)) {
2450 		buf = kmalloc(DS4_FEATURE_REPORT_0x81_SIZE, GFP_KERNEL);
2451 		if (!buf)
2452 			return -ENOMEM;
2453 
2454 		/*
2455 		 * The MAC address of a DS4 controller connected via USB can be
2456 		 * retrieved with feature report 0x81. The address begins at
2457 		 * offset 1.
2458 		 */
2459 		ret = hid_hw_raw_request(sc->hdev, 0x81, buf,
2460 				DS4_FEATURE_REPORT_0x81_SIZE, HID_FEATURE_REPORT,
2461 				HID_REQ_GET_REPORT);
2462 
2463 		if (ret != DS4_FEATURE_REPORT_0x81_SIZE) {
2464 			hid_err(sc->hdev, "failed to retrieve feature report 0x81 with the DualShock 4 MAC address\n");
2465 			ret = ret < 0 ? ret : -EINVAL;
2466 			goto out_free;
2467 		}
2468 
2469 		memcpy(sc->mac_address, &buf[1], sizeof(sc->mac_address));
2470 
2471 		snprintf(sc->hdev->uniq, sizeof(sc->hdev->uniq),
2472 			 "%pMR", sc->mac_address);
2473 	} else if ((sc->quirks & SIXAXIS_CONTROLLER_USB) ||
2474 			(sc->quirks & NAVIGATION_CONTROLLER_USB)) {
2475 		buf = kmalloc(SIXAXIS_REPORT_0xF2_SIZE, GFP_KERNEL);
2476 		if (!buf)
2477 			return -ENOMEM;
2478 
2479 		/*
2480 		 * The MAC address of a Sixaxis controller connected via USB can
2481 		 * be retrieved with feature report 0xf2. The address begins at
2482 		 * offset 4.
2483 		 */
2484 		ret = hid_hw_raw_request(sc->hdev, 0xf2, buf,
2485 				SIXAXIS_REPORT_0xF2_SIZE, HID_FEATURE_REPORT,
2486 				HID_REQ_GET_REPORT);
2487 
2488 		if (ret != SIXAXIS_REPORT_0xF2_SIZE) {
2489 			hid_err(sc->hdev, "failed to retrieve feature report 0xf2 with the Sixaxis MAC address\n");
2490 			ret = ret < 0 ? ret : -EINVAL;
2491 			goto out_free;
2492 		}
2493 
2494 		/*
2495 		 * The Sixaxis device MAC in the report is big-endian and must
2496 		 * be byte-swapped.
2497 		 */
2498 		for (n = 0; n < 6; n++)
2499 			sc->mac_address[5-n] = buf[4+n];
2500 
2501 		snprintf(sc->hdev->uniq, sizeof(sc->hdev->uniq),
2502 			 "%pMR", sc->mac_address);
2503 	} else {
2504 		return 0;
2505 	}
2506 
2507 	ret = sony_check_add_dev_list(sc);
2508 
2509 out_free:
2510 
2511 	kfree(buf);
2512 
2513 	return ret;
2514 }
2515 
2516 static int sony_set_device_id(struct sony_sc *sc)
2517 {
2518 	int ret;
2519 
2520 	/*
2521 	 * Only DualShock 4 or Sixaxis controllers get an id.
2522 	 * All others are set to -1.
2523 	 */
2524 	if ((sc->quirks & SIXAXIS_CONTROLLER) ||
2525 	    (sc->quirks & DUALSHOCK4_CONTROLLER)) {
2526 		ret = ida_simple_get(&sony_device_id_allocator, 0, 0,
2527 					GFP_KERNEL);
2528 		if (ret < 0) {
2529 			sc->device_id = -1;
2530 			return ret;
2531 		}
2532 		sc->device_id = ret;
2533 	} else {
2534 		sc->device_id = -1;
2535 	}
2536 
2537 	return 0;
2538 }
2539 
2540 static void sony_release_device_id(struct sony_sc *sc)
2541 {
2542 	if (sc->device_id >= 0) {
2543 		ida_simple_remove(&sony_device_id_allocator, sc->device_id);
2544 		sc->device_id = -1;
2545 	}
2546 }
2547 
2548 static inline void sony_init_output_report(struct sony_sc *sc,
2549 				void (*send_output_report)(struct sony_sc *))
2550 {
2551 	sc->send_output_report = send_output_report;
2552 
2553 	if (!sc->state_worker_initialized)
2554 		INIT_WORK(&sc->state_worker, sony_state_worker);
2555 
2556 	sc->state_worker_initialized = 1;
2557 }
2558 
2559 static inline void sony_cancel_work_sync(struct sony_sc *sc)
2560 {
2561 	if (sc->hotplug_worker_initialized)
2562 		cancel_work_sync(&sc->hotplug_worker);
2563 	if (sc->state_worker_initialized)
2564 		cancel_work_sync(&sc->state_worker);
2565 }
2566 
2567 
2568 static int sony_input_configured(struct hid_device *hdev,
2569 					struct hid_input *hidinput)
2570 {
2571 	struct sony_sc *sc = hid_get_drvdata(hdev);
2572 	int append_dev_id;
2573 	int ret;
2574 
2575 	ret = sony_set_device_id(sc);
2576 	if (ret < 0) {
2577 		hid_err(hdev, "failed to allocate the device id\n");
2578 		goto err_stop;
2579 	}
2580 
2581 	ret = append_dev_id = sony_check_add(sc);
2582 	if (ret < 0)
2583 		goto err_stop;
2584 
2585 	ret = sony_allocate_output_report(sc);
2586 	if (ret < 0) {
2587 		hid_err(hdev, "failed to allocate the output report buffer\n");
2588 		goto err_stop;
2589 	}
2590 
2591 	if (sc->quirks & NAVIGATION_CONTROLLER_USB) {
2592 		/*
2593 		 * The Sony Sixaxis does not handle HID Output Reports on the
2594 		 * Interrupt EP like it could, so we need to force HID Output
2595 		 * Reports to use HID_REQ_SET_REPORT on the Control EP.
2596 		 *
2597 		 * There is also another issue about HID Output Reports via USB,
2598 		 * the Sixaxis does not want the report_id as part of the data
2599 		 * packet, so we have to discard buf[0] when sending the actual
2600 		 * control message, even for numbered reports, humpf!
2601 		 *
2602 		 * Additionally, the Sixaxis on USB isn't properly initialized
2603 		 * until the PS logo button is pressed and as such won't retain
2604 		 * any state set by an output report, so the initial
2605 		 * configuration report is deferred until the first input
2606 		 * report arrives.
2607 		 */
2608 		hdev->quirks |= HID_QUIRK_NO_OUTPUT_REPORTS_ON_INTR_EP;
2609 		hdev->quirks |= HID_QUIRK_SKIP_OUTPUT_REPORT_ID;
2610 		sc->defer_initialization = 1;
2611 
2612 		ret = sixaxis_set_operational_usb(hdev);
2613 		if (ret < 0) {
2614 			hid_err(hdev, "Failed to set controller into operational mode\n");
2615 			goto err_stop;
2616 		}
2617 
2618 		sony_init_output_report(sc, sixaxis_send_output_report);
2619 	} else if (sc->quirks & NAVIGATION_CONTROLLER_BT) {
2620 		/*
2621 		 * The Navigation controller wants output reports sent on the ctrl
2622 		 * endpoint when connected via Bluetooth.
2623 		 */
2624 		hdev->quirks |= HID_QUIRK_NO_OUTPUT_REPORTS_ON_INTR_EP;
2625 
2626 		ret = sixaxis_set_operational_bt(hdev);
2627 		if (ret < 0) {
2628 			hid_err(hdev, "Failed to set controller into operational mode\n");
2629 			goto err_stop;
2630 		}
2631 
2632 		sony_init_output_report(sc, sixaxis_send_output_report);
2633 	} else if (sc->quirks & SIXAXIS_CONTROLLER_USB) {
2634 		/*
2635 		 * The Sony Sixaxis does not handle HID Output Reports on the
2636 		 * Interrupt EP and the device only becomes active when the
2637 		 * PS button is pressed. See comment for Navigation controller
2638 		 * above for more details.
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 		ret = sony_register_sensors(sc);
2651 		if (ret) {
2652 			hid_err(sc->hdev,
2653 			"Unable to initialize motion sensors: %d\n", ret);
2654 			goto err_stop;
2655 		}
2656 
2657 		sony_init_output_report(sc, sixaxis_send_output_report);
2658 	} else if (sc->quirks & SIXAXIS_CONTROLLER_BT) {
2659 		/*
2660 		 * The Sixaxis wants output reports sent on the ctrl endpoint
2661 		 * when connected via Bluetooth.
2662 		 */
2663 		hdev->quirks |= HID_QUIRK_NO_OUTPUT_REPORTS_ON_INTR_EP;
2664 
2665 		ret = sixaxis_set_operational_bt(hdev);
2666 		if (ret < 0) {
2667 			hid_err(hdev, "Failed to set controller into operational mode\n");
2668 			goto err_stop;
2669 		}
2670 
2671 		ret = sony_register_sensors(sc);
2672 		if (ret) {
2673 			hid_err(sc->hdev,
2674 			"Unable to initialize motion sensors: %d\n", ret);
2675 			goto err_stop;
2676 		}
2677 
2678 		sony_init_output_report(sc, sixaxis_send_output_report);
2679 	} else if (sc->quirks & DUALSHOCK4_CONTROLLER) {
2680 		ret = dualshock4_get_calibration_data(sc);
2681 		if (ret < 0) {
2682 			hid_err(hdev, "Failed to get calibration data from Dualshock 4\n");
2683 			goto err_stop;
2684 		}
2685 
2686 		ret = dualshock4_get_version_info(sc);
2687 		if (ret < 0) {
2688 			hid_err(sc->hdev, "Failed to get version data from Dualshock 4\n");
2689 			goto err_stop;
2690 		}
2691 
2692 		ret = device_create_file(&sc->hdev->dev, &dev_attr_firmware_version);
2693 		if (ret) {
2694 			/* Make zero for cleanup reasons of sysfs entries. */
2695 			sc->fw_version = 0;
2696 			sc->hw_version = 0;
2697 			hid_err(sc->hdev, "can't create sysfs firmware_version attribute err: %d\n", ret);
2698 			goto err_stop;
2699 		}
2700 
2701 		ret = device_create_file(&sc->hdev->dev, &dev_attr_hardware_version);
2702 		if (ret) {
2703 			sc->hw_version = 0;
2704 			hid_err(sc->hdev, "can't create sysfs hardware_version attribute err: %d\n", ret);
2705 			goto err_stop;
2706 		}
2707 
2708 		/*
2709 		 * The Dualshock 4 touchpad supports 2 touches and has a
2710 		 * resolution of 1920x942 (44.86 dots/mm).
2711 		 */
2712 		ret = sony_register_touchpad(sc, 2, 1920, 942, 0, 0, 0);
2713 		if (ret) {
2714 			hid_err(sc->hdev,
2715 			"Unable to initialize multi-touch slots: %d\n",
2716 			ret);
2717 			goto err_stop;
2718 		}
2719 
2720 		ret = sony_register_sensors(sc);
2721 		if (ret) {
2722 			hid_err(sc->hdev,
2723 			"Unable to initialize motion sensors: %d\n", ret);
2724 			goto err_stop;
2725 		}
2726 
2727 		if (sc->quirks & DUALSHOCK4_CONTROLLER_BT) {
2728 			sc->ds4_bt_poll_interval = DS4_BT_DEFAULT_POLL_INTERVAL_MS;
2729 			ret = device_create_file(&sc->hdev->dev, &dev_attr_bt_poll_interval);
2730 			if (ret)
2731 				hid_warn(sc->hdev,
2732 				 "can't create sysfs bt_poll_interval attribute err: %d\n",
2733 				 ret);
2734 		}
2735 
2736 		if (sc->quirks & DUALSHOCK4_DONGLE) {
2737 			INIT_WORK(&sc->hotplug_worker, dualshock4_calibration_work);
2738 			sc->hotplug_worker_initialized = 1;
2739 			sc->ds4_dongle_state = DONGLE_DISCONNECTED;
2740 		}
2741 
2742 		sony_init_output_report(sc, dualshock4_send_output_report);
2743 	} else if (sc->quirks & NSG_MRXU_REMOTE) {
2744 		/*
2745 		 * The NSG-MRxU touchpad supports 2 touches and has a
2746 		 * resolution of 1667x1868
2747 		 */
2748 		ret = sony_register_touchpad(sc, 2,
2749 			NSG_MRXU_MAX_X, NSG_MRXU_MAX_Y, 15, 15, 1);
2750 		if (ret) {
2751 			hid_err(sc->hdev,
2752 			"Unable to initialize multi-touch slots: %d\n",
2753 			ret);
2754 			goto err_stop;
2755 		}
2756 
2757 	} else if (sc->quirks & MOTION_CONTROLLER) {
2758 		sony_init_output_report(sc, motion_send_output_report);
2759 	} else {
2760 		ret = 0;
2761 	}
2762 
2763 	if (sc->quirks & SONY_LED_SUPPORT) {
2764 		ret = sony_leds_init(sc);
2765 		if (ret < 0)
2766 			goto err_stop;
2767 	}
2768 
2769 	if (sc->quirks & SONY_BATTERY_SUPPORT) {
2770 		ret = sony_battery_probe(sc, append_dev_id);
2771 		if (ret < 0)
2772 			goto err_stop;
2773 
2774 		/* Open the device to receive reports with battery info */
2775 		ret = hid_hw_open(hdev);
2776 		if (ret < 0) {
2777 			hid_err(hdev, "hw open failed\n");
2778 			goto err_stop;
2779 		}
2780 	}
2781 
2782 	if (sc->quirks & SONY_FF_SUPPORT) {
2783 		ret = sony_init_ff(sc);
2784 		if (ret < 0)
2785 			goto err_close;
2786 	}
2787 
2788 	return 0;
2789 err_close:
2790 	hid_hw_close(hdev);
2791 err_stop:
2792 	/* Piggy back on the default ds4_bt_ poll_interval to determine
2793 	 * if we need to remove the file as we don't know for sure if we
2794 	 * executed that logic.
2795 	 */
2796 	if (sc->ds4_bt_poll_interval)
2797 		device_remove_file(&sc->hdev->dev, &dev_attr_bt_poll_interval);
2798 	if (sc->fw_version)
2799 		device_remove_file(&sc->hdev->dev, &dev_attr_firmware_version);
2800 	if (sc->hw_version)
2801 		device_remove_file(&sc->hdev->dev, &dev_attr_hardware_version);
2802 	sony_cancel_work_sync(sc);
2803 	sony_remove_dev_list(sc);
2804 	sony_release_device_id(sc);
2805 	hid_hw_stop(hdev);
2806 	return ret;
2807 }
2808 
2809 static int sony_probe(struct hid_device *hdev, const struct hid_device_id *id)
2810 {
2811 	int ret;
2812 	unsigned long quirks = id->driver_data;
2813 	struct sony_sc *sc;
2814 	unsigned int connect_mask = HID_CONNECT_DEFAULT;
2815 
2816 	if (!strcmp(hdev->name, "FutureMax Dance Mat"))
2817 		quirks |= FUTUREMAX_DANCE_MAT;
2818 
2819 	if (!strcmp(hdev->name, "SHANWAN PS3 GamePad"))
2820 		quirks |= SHANWAN_GAMEPAD;
2821 
2822 	sc = devm_kzalloc(&hdev->dev, sizeof(*sc), GFP_KERNEL);
2823 	if (sc == NULL) {
2824 		hid_err(hdev, "can't alloc sony descriptor\n");
2825 		return -ENOMEM;
2826 	}
2827 
2828 	spin_lock_init(&sc->lock);
2829 
2830 	sc->quirks = quirks;
2831 	hid_set_drvdata(hdev, sc);
2832 	sc->hdev = hdev;
2833 
2834 	ret = hid_parse(hdev);
2835 	if (ret) {
2836 		hid_err(hdev, "parse failed\n");
2837 		return ret;
2838 	}
2839 
2840 	if (sc->quirks & VAIO_RDESC_CONSTANT)
2841 		connect_mask |= HID_CONNECT_HIDDEV_FORCE;
2842 	else if (sc->quirks & SIXAXIS_CONTROLLER)
2843 		connect_mask |= HID_CONNECT_HIDDEV_FORCE;
2844 
2845 	/* Patch the hw version on DS3/4 compatible devices, so applications can
2846 	 * distinguish between the default HID mappings and the mappings defined
2847 	 * by the Linux game controller spec. This is important for the SDL2
2848 	 * library, which has a game controller database, which uses device ids
2849 	 * in combination with version as a key.
2850 	 */
2851 	if (sc->quirks & (SIXAXIS_CONTROLLER | DUALSHOCK4_CONTROLLER))
2852 		hdev->version |= 0x8000;
2853 
2854 	ret = hid_hw_start(hdev, connect_mask);
2855 	if (ret) {
2856 		hid_err(hdev, "hw start failed\n");
2857 		return ret;
2858 	}
2859 
2860 	/* sony_input_configured can fail, but this doesn't result
2861 	 * in hid_hw_start failures (intended). Check whether
2862 	 * the HID layer claimed the device else fail.
2863 	 * We don't know the actual reason for the failure, most
2864 	 * likely it is due to EEXIST in case of double connection
2865 	 * of USB and Bluetooth, but could have been due to ENOMEM
2866 	 * or other reasons as well.
2867 	 */
2868 	if (!(hdev->claimed & HID_CLAIMED_INPUT)) {
2869 		hid_err(hdev, "failed to claim input\n");
2870 		return -ENODEV;
2871 	}
2872 
2873 	return ret;
2874 }
2875 
2876 static void sony_remove(struct hid_device *hdev)
2877 {
2878 	struct sony_sc *sc = hid_get_drvdata(hdev);
2879 
2880 	hid_hw_close(hdev);
2881 
2882 	if (sc->quirks & DUALSHOCK4_CONTROLLER_BT)
2883 		device_remove_file(&sc->hdev->dev, &dev_attr_bt_poll_interval);
2884 
2885 	if (sc->fw_version)
2886 		device_remove_file(&sc->hdev->dev, &dev_attr_firmware_version);
2887 
2888 	if (sc->hw_version)
2889 		device_remove_file(&sc->hdev->dev, &dev_attr_hardware_version);
2890 
2891 	sony_cancel_work_sync(sc);
2892 
2893 	sony_remove_dev_list(sc);
2894 
2895 	sony_release_device_id(sc);
2896 
2897 	hid_hw_stop(hdev);
2898 }
2899 
2900 #ifdef CONFIG_PM
2901 
2902 static int sony_suspend(struct hid_device *hdev, pm_message_t message)
2903 {
2904 #ifdef CONFIG_SONY_FF
2905 
2906 	/* On suspend stop any running force-feedback events */
2907 	if (SONY_FF_SUPPORT) {
2908 		struct sony_sc *sc = hid_get_drvdata(hdev);
2909 
2910 		sc->left = sc->right = 0;
2911 		sony_send_output_report(sc);
2912 	}
2913 
2914 #endif
2915 	return 0;
2916 }
2917 
2918 static int sony_resume(struct hid_device *hdev)
2919 {
2920 	struct sony_sc *sc = hid_get_drvdata(hdev);
2921 
2922 	/*
2923 	 * The Sixaxis and navigation controllers on USB need to be
2924 	 * reinitialized on resume or they won't behave properly.
2925 	 */
2926 	if ((sc->quirks & SIXAXIS_CONTROLLER_USB) ||
2927 		(sc->quirks & NAVIGATION_CONTROLLER_USB)) {
2928 		sixaxis_set_operational_usb(sc->hdev);
2929 		sc->defer_initialization = 1;
2930 	}
2931 
2932 	return 0;
2933 }
2934 
2935 #endif
2936 
2937 static const struct hid_device_id sony_devices[] = {
2938 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER),
2939 		.driver_data = SIXAXIS_CONTROLLER_USB },
2940 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_NAVIGATION_CONTROLLER),
2941 		.driver_data = NAVIGATION_CONTROLLER_USB },
2942 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_NAVIGATION_CONTROLLER),
2943 		.driver_data = NAVIGATION_CONTROLLER_BT },
2944 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_MOTION_CONTROLLER),
2945 		.driver_data = MOTION_CONTROLLER_USB },
2946 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_MOTION_CONTROLLER),
2947 		.driver_data = MOTION_CONTROLLER_BT },
2948 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER),
2949 		.driver_data = SIXAXIS_CONTROLLER_BT },
2950 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE),
2951 		.driver_data = VAIO_RDESC_CONSTANT },
2952 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGP_MOUSE),
2953 		.driver_data = VAIO_RDESC_CONSTANT },
2954 	/*
2955 	 * Wired Buzz Controller. Reported as Sony Hub from its USB ID and as
2956 	 * Logitech joystick from the device descriptor.
2957 	 */
2958 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_BUZZ_CONTROLLER),
2959 		.driver_data = BUZZ_CONTROLLER },
2960 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_WIRELESS_BUZZ_CONTROLLER),
2961 		.driver_data = BUZZ_CONTROLLER },
2962 	/* PS3 BD Remote Control */
2963 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_BDREMOTE),
2964 		.driver_data = PS3REMOTE },
2965 	/* Logitech Harmony Adapter for PS3 */
2966 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_HARMONY_PS3),
2967 		.driver_data = PS3REMOTE },
2968 	/* SMK-Link PS3 BD Remote Control */
2969 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SMK, USB_DEVICE_ID_SMK_PS3_BDREMOTE),
2970 		.driver_data = PS3REMOTE },
2971 	/* Sony Dualshock 4 controllers for PS4 */
2972 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER),
2973 		.driver_data = DUALSHOCK4_CONTROLLER_USB },
2974 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER),
2975 		.driver_data = DUALSHOCK4_CONTROLLER_BT },
2976 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER_2),
2977 		.driver_data = DUALSHOCK4_CONTROLLER_USB },
2978 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER_2),
2979 		.driver_data = DUALSHOCK4_CONTROLLER_BT },
2980 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER_DONGLE),
2981 		.driver_data = DUALSHOCK4_DONGLE },
2982 	/* Nyko Core Controller for PS3 */
2983 	{ HID_USB_DEVICE(USB_VENDOR_ID_SINO_LITE, USB_DEVICE_ID_SINO_LITE_CONTROLLER),
2984 		.driver_data = SIXAXIS_CONTROLLER_USB | SINO_LITE_CONTROLLER },
2985 	/* SMK-Link NSG-MR5U Remote Control */
2986 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SMK, USB_DEVICE_ID_SMK_NSG_MR5U_REMOTE),
2987 		.driver_data = NSG_MR5U_REMOTE_BT },
2988 	/* SMK-Link NSG-MR7U Remote Control */
2989 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SMK, USB_DEVICE_ID_SMK_NSG_MR7U_REMOTE),
2990 		.driver_data = NSG_MR7U_REMOTE_BT },
2991 	{ }
2992 };
2993 MODULE_DEVICE_TABLE(hid, sony_devices);
2994 
2995 static struct hid_driver sony_driver = {
2996 	.name             = "sony",
2997 	.id_table         = sony_devices,
2998 	.input_mapping    = sony_mapping,
2999 	.input_configured = sony_input_configured,
3000 	.probe            = sony_probe,
3001 	.remove           = sony_remove,
3002 	.report_fixup     = sony_report_fixup,
3003 	.raw_event        = sony_raw_event,
3004 
3005 #ifdef CONFIG_PM
3006 	.suspend          = sony_suspend,
3007 	.resume	          = sony_resume,
3008 	.reset_resume     = sony_resume,
3009 #endif
3010 };
3011 
3012 static int __init sony_init(void)
3013 {
3014 	dbg_hid("Sony:%s\n", __func__);
3015 
3016 	return hid_register_driver(&sony_driver);
3017 }
3018 
3019 static void __exit sony_exit(void)
3020 {
3021 	dbg_hid("Sony:%s\n", __func__);
3022 
3023 	hid_unregister_driver(&sony_driver);
3024 	ida_destroy(&sony_device_id_allocator);
3025 }
3026 module_init(sony_init);
3027 module_exit(sony_exit);
3028 
3029 MODULE_LICENSE("GPL");
3030