/*
 *  HID driver for Sony / PS2 / PS3 BD devices.
 *
 *  Copyright (c) 1999 Andreas Gal
 *  Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
 *  Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
 *  Copyright (c) 2008 Jiri Slaby
 *  Copyright (c) 2012 David Dillow <dave@thedillows.org>
 *  Copyright (c) 2006-2013 Jiri Kosina
 *  Copyright (c) 2013 Colin Leitner <colin.leitner@gmail.com>
 */

/*
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the Free
 * Software Foundation; either version 2 of the License, or (at your option)
 * any later version.
 */

/*
 * NOTE: in order for the Sony PS3 BD Remote Control to be found by
 * a Bluetooth host, the key combination Start+Enter has to be kept pressed
 * for about 7 seconds with the Bluetooth Host Controller in discovering mode.
 *
 * There will be no PIN request from the device.
 */

#include <linux/device.h>
#include <linux/hid.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/leds.h>
#include <linux/power_supply.h>
#include <linux/spinlock.h>
#include <linux/list.h>
#include <linux/input/mt.h>

#include "hid-ids.h"

#define VAIO_RDESC_CONSTANT       BIT(0)
#define SIXAXIS_CONTROLLER_USB    BIT(1)
#define SIXAXIS_CONTROLLER_BT     BIT(2)
#define BUZZ_CONTROLLER           BIT(3)
#define PS3REMOTE                 BIT(4)
#define DUALSHOCK4_CONTROLLER_USB BIT(5)
#define DUALSHOCK4_CONTROLLER_BT  BIT(6)

#define SIXAXIS_CONTROLLER (SIXAXIS_CONTROLLER_USB | SIXAXIS_CONTROLLER_BT)
#define DUALSHOCK4_CONTROLLER (DUALSHOCK4_CONTROLLER_USB |\
                                DUALSHOCK4_CONTROLLER_BT)
#define SONY_LED_SUPPORT (SIXAXIS_CONTROLLER | BUZZ_CONTROLLER |\
                                DUALSHOCK4_CONTROLLER)
#define SONY_BATTERY_SUPPORT (SIXAXIS_CONTROLLER | DUALSHOCK4_CONTROLLER)
#define SONY_FF_SUPPORT (SIXAXIS_CONTROLLER | DUALSHOCK4_CONTROLLER)

#define MAX_LEDS 4

static const u8 sixaxis_rdesc_fixup[] = {
        0x95, 0x13, 0x09, 0x01, 0x81, 0x02, 0x95, 0x0C,
        0x81, 0x01, 0x75, 0x10, 0x95, 0x04, 0x26, 0xFF,
        0x03, 0x46, 0xFF, 0x03, 0x09, 0x01, 0x81, 0x02
};

static const u8 sixaxis_rdesc_fixup2[] = {
        0x05, 0x01, 0x09, 0x04, 0xa1, 0x01, 0xa1, 0x02,
        0x85, 0x01, 0x75, 0x08, 0x95, 0x01, 0x15, 0x00,
        0x26, 0xff, 0x00, 0x81, 0x03, 0x75, 0x01, 0x95,
        0x13, 0x15, 0x00, 0x25, 0x01, 0x35, 0x00, 0x45,
        0x01, 0x05, 0x09, 0x19, 0x01, 0x29, 0x13, 0x81,
        0x02, 0x75, 0x01, 0x95, 0x0d, 0x06, 0x00, 0xff,
        0x81, 0x03, 0x15, 0x00, 0x26, 0xff, 0x00, 0x05,
        0x01, 0x09, 0x01, 0xa1, 0x00, 0x75, 0x08, 0x95,
        0x04, 0x35, 0x00, 0x46, 0xff, 0x00, 0x09, 0x30,
        0x09, 0x31, 0x09, 0x32, 0x09, 0x35, 0x81, 0x02,
        0xc0, 0x05, 0x01, 0x95, 0x13, 0x09, 0x01, 0x81,
        0x02, 0x95, 0x0c, 0x81, 0x01, 0x75, 0x10, 0x95,
        0x04, 0x26, 0xff, 0x03, 0x46, 0xff, 0x03, 0x09,
        0x01, 0x81, 0x02, 0xc0, 0xa1, 0x02, 0x85, 0x02,
        0x75, 0x08, 0x95, 0x30, 0x09, 0x01, 0xb1, 0x02,
        0xc0, 0xa1, 0x02, 0x85, 0xee, 0x75, 0x08, 0x95,
        0x30, 0x09, 0x01, 0xb1, 0x02, 0xc0, 0xa1, 0x02,
        0x85, 0xef, 0x75, 0x08, 0x95, 0x30, 0x09, 0x01,
        0xb1, 0x02, 0xc0, 0xc0,
};

/*
 * The default descriptor doesn't provide mapping for the accelerometers
 * or orientation sensors.  This fixed descriptor maps the accelerometers
 * to usage values 0x40, 0x41 and 0x42 and maps the orientation sensors
 * to usage values 0x43, 0x44 and 0x45.
 */
static u8 dualshock4_usb_rdesc[] = {
        0x05, 0x01,         /*  Usage Page (Desktop),               */
        0x09, 0x05,         /*  Usage (Gamepad),                    */
        0xA1, 0x01,         /*  Collection (Application),           */
        0x85, 0x01,         /*      Report ID (1),                  */
        0x09, 0x30,         /*      Usage (X),                      */
        0x09, 0x31,         /*      Usage (Y),                      */
        0x09, 0x32,         /*      Usage (Z),                      */
        0x09, 0x35,         /*      Usage (Rz),                     */
        0x15, 0x00,         /*      Logical Minimum (0),            */
        0x26, 0xFF, 0x00,   /*      Logical Maximum (255),          */
        0x75, 0x08,         /*      Report Size (8),                */
        0x95, 0x04,         /*      Report Count (4),               */
        0x81, 0x02,         /*      Input (Variable),               */
        0x09, 0x39,         /*      Usage (Hat Switch),             */
        0x15, 0x00,         /*      Logical Minimum (0),            */
        0x25, 0x07,         /*      Logical Maximum (7),            */
        0x35, 0x00,         /*      Physical Minimum (0),           */
        0x46, 0x3B, 0x01,   /*      Physical Maximum (315),         */
        0x65, 0x14,         /*      Unit (Degrees),                 */
        0x75, 0x04,         /*      Report Size (4),                */
        0x95, 0x01,         /*      Report Count (1),               */
        0x81, 0x42,         /*      Input (Variable, Null State),   */
        0x65, 0x00,         /*      Unit,                           */
        0x05, 0x09,         /*      Usage Page (Button),            */
        0x19, 0x01,         /*      Usage Minimum (01h),            */
        0x29, 0x0E,         /*      Usage Maximum (0Eh),            */
        0x15, 0x00,         /*      Logical Minimum (0),            */
        0x25, 0x01,         /*      Logical Maximum (1),            */
        0x75, 0x01,         /*      Report Size (1),                */
        0x95, 0x0E,         /*      Report Count (14),              */
        0x81, 0x02,         /*      Input (Variable),               */
        0x06, 0x00, 0xFF,   /*      Usage Page (FF00h),             */
        0x09, 0x20,         /*      Usage (20h),                    */
        0x75, 0x06,         /*      Report Size (6),                */
        0x95, 0x01,         /*      Report Count (1),               */
        0x15, 0x00,         /*      Logical Minimum (0),            */
        0x25, 0x7F,         /*      Logical Maximum (127),          */
        0x81, 0x02,         /*      Input (Variable),               */
        0x05, 0x01,         /*      Usage Page (Desktop),           */
        0x09, 0x33,         /*      Usage (Rx),                     */
        0x09, 0x34,         /*      Usage (Ry),                     */
        0x15, 0x00,         /*      Logical Minimum (0),            */
        0x26, 0xFF, 0x00,   /*      Logical Maximum (255),          */
        0x75, 0x08,         /*      Report Size (8),                */
        0x95, 0x02,         /*      Report Count (2),               */
        0x81, 0x02,         /*      Input (Variable),               */
        0x06, 0x00, 0xFF,   /*      Usage Page (FF00h),             */
        0x09, 0x21,         /*      Usage (21h),                    */
        0x95, 0x03,         /*      Report Count (3),               */
        0x81, 0x02,         /*      Input (Variable),               */
        0x05, 0x01,         /*      Usage Page (Desktop),           */
        0x19, 0x40,         /*      Usage Minimum (40h),            */
        0x29, 0x42,         /*      Usage Maximum (42h),            */
        0x16, 0x00, 0x80,   /*      Logical Minimum (-32768),       */
        0x26, 0x00, 0x7F,   /*      Logical Maximum (32767),        */
        0x75, 0x10,         /*      Report Size (16),               */
        0x95, 0x03,         /*      Report Count (3),               */
        0x81, 0x02,         /*      Input (Variable),               */
        0x19, 0x43,         /*      Usage Minimum (43h),            */
        0x29, 0x45,         /*      Usage Maximum (45h),            */
        0x16, 0xFF, 0xBF,   /*      Logical Minimum (-16385),       */
        0x26, 0x00, 0x40,   /*      Logical Maximum (16384),        */
        0x95, 0x03,         /*      Report Count (3),               */
        0x81, 0x02,         /*      Input (Variable),               */
        0x06, 0x00, 0xFF,   /*      Usage Page (FF00h),             */
        0x09, 0x21,         /*      Usage (21h),                    */
        0x15, 0x00,         /*      Logical Minimum (0),            */
        0x25, 0xFF,         /*      Logical Maximum (255),          */
        0x75, 0x08,         /*      Report Size (8),                */
        0x95, 0x27,         /*      Report Count (39),              */
        0x81, 0x02,         /*      Input (Variable),               */
        0x85, 0x05,         /*      Report ID (5),                  */
        0x09, 0x22,         /*      Usage (22h),                    */
        0x95, 0x1F,         /*      Report Count (31),              */
        0x91, 0x02,         /*      Output (Variable),              */
        0x85, 0x04,         /*      Report ID (4),                  */
        0x09, 0x23,         /*      Usage (23h),                    */
        0x95, 0x24,         /*      Report Count (36),              */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0x85, 0x02,         /*      Report ID (2),                  */
        0x09, 0x24,         /*      Usage (24h),                    */
        0x95, 0x24,         /*      Report Count (36),              */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0x85, 0x08,         /*      Report ID (8),                  */
        0x09, 0x25,         /*      Usage (25h),                    */
        0x95, 0x03,         /*      Report Count (3),               */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0x85, 0x10,         /*      Report ID (16),                 */
        0x09, 0x26,         /*      Usage (26h),                    */
        0x95, 0x04,         /*      Report Count (4),               */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0x85, 0x11,         /*      Report ID (17),                 */
        0x09, 0x27,         /*      Usage (27h),                    */
        0x95, 0x02,         /*      Report Count (2),               */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0x85, 0x12,         /*      Report ID (18),                 */
        0x06, 0x02, 0xFF,   /*      Usage Page (FF02h),             */
        0x09, 0x21,         /*      Usage (21h),                    */
        0x95, 0x0F,         /*      Report Count (15),              */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0x85, 0x13,         /*      Report ID (19),                 */
        0x09, 0x22,         /*      Usage (22h),                    */
        0x95, 0x16,         /*      Report Count (22),              */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0x85, 0x14,         /*      Report ID (20),                 */
        0x06, 0x05, 0xFF,   /*      Usage Page (FF05h),             */
        0x09, 0x20,         /*      Usage (20h),                    */
        0x95, 0x10,         /*      Report Count (16),              */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0x85, 0x15,         /*      Report ID (21),                 */
        0x09, 0x21,         /*      Usage (21h),                    */
        0x95, 0x2C,         /*      Report Count (44),              */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0x06, 0x80, 0xFF,   /*      Usage Page (FF80h),             */
        0x85, 0x80,         /*      Report ID (128),                */
        0x09, 0x20,         /*      Usage (20h),                    */
        0x95, 0x06,         /*      Report Count (6),               */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0x85, 0x81,         /*      Report ID (129),                */
        0x09, 0x21,         /*      Usage (21h),                    */
        0x95, 0x06,         /*      Report Count (6),               */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0x85, 0x82,         /*      Report ID (130),                */
        0x09, 0x22,         /*      Usage (22h),                    */
        0x95, 0x05,         /*      Report Count (5),               */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0x85, 0x83,         /*      Report ID (131),                */
        0x09, 0x23,         /*      Usage (23h),                    */
        0x95, 0x01,         /*      Report Count (1),               */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0x85, 0x84,         /*      Report ID (132),                */
        0x09, 0x24,         /*      Usage (24h),                    */
        0x95, 0x04,         /*      Report Count (4),               */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0x85, 0x85,         /*      Report ID (133),                */
        0x09, 0x25,         /*      Usage (25h),                    */
        0x95, 0x06,         /*      Report Count (6),               */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0x85, 0x86,         /*      Report ID (134),                */
        0x09, 0x26,         /*      Usage (26h),                    */
        0x95, 0x06,         /*      Report Count (6),               */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0x85, 0x87,         /*      Report ID (135),                */
        0x09, 0x27,         /*      Usage (27h),                    */
        0x95, 0x23,         /*      Report Count (35),              */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0x85, 0x88,         /*      Report ID (136),                */
        0x09, 0x28,         /*      Usage (28h),                    */
        0x95, 0x22,         /*      Report Count (34),              */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0x85, 0x89,         /*      Report ID (137),                */
        0x09, 0x29,         /*      Usage (29h),                    */
        0x95, 0x02,         /*      Report Count (2),               */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0x85, 0x90,         /*      Report ID (144),                */
        0x09, 0x30,         /*      Usage (30h),                    */
        0x95, 0x05,         /*      Report Count (5),               */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0x85, 0x91,         /*      Report ID (145),                */
        0x09, 0x31,         /*      Usage (31h),                    */
        0x95, 0x03,         /*      Report Count (3),               */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0x85, 0x92,         /*      Report ID (146),                */
        0x09, 0x32,         /*      Usage (32h),                    */
        0x95, 0x03,         /*      Report Count (3),               */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0x85, 0x93,         /*      Report ID (147),                */
        0x09, 0x33,         /*      Usage (33h),                    */
        0x95, 0x0C,         /*      Report Count (12),              */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0x85, 0xA0,         /*      Report ID (160),                */
        0x09, 0x40,         /*      Usage (40h),                    */
        0x95, 0x06,         /*      Report Count (6),               */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0x85, 0xA1,         /*      Report ID (161),                */
        0x09, 0x41,         /*      Usage (41h),                    */
        0x95, 0x01,         /*      Report Count (1),               */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0x85, 0xA2,         /*      Report ID (162),                */
        0x09, 0x42,         /*      Usage (42h),                    */
        0x95, 0x01,         /*      Report Count (1),               */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0x85, 0xA3,         /*      Report ID (163),                */
        0x09, 0x43,         /*      Usage (43h),                    */
        0x95, 0x30,         /*      Report Count (48),              */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0x85, 0xA4,         /*      Report ID (164),                */
        0x09, 0x44,         /*      Usage (44h),                    */
        0x95, 0x0D,         /*      Report Count (13),              */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0x85, 0xA5,         /*      Report ID (165),                */
        0x09, 0x45,         /*      Usage (45h),                    */
        0x95, 0x15,         /*      Report Count (21),              */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0x85, 0xA6,         /*      Report ID (166),                */
        0x09, 0x46,         /*      Usage (46h),                    */
        0x95, 0x15,         /*      Report Count (21),              */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0x85, 0xF0,         /*      Report ID (240),                */
        0x09, 0x47,         /*      Usage (47h),                    */
        0x95, 0x3F,         /*      Report Count (63),              */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0x85, 0xF1,         /*      Report ID (241),                */
        0x09, 0x48,         /*      Usage (48h),                    */
        0x95, 0x3F,         /*      Report Count (63),              */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0x85, 0xF2,         /*      Report ID (242),                */
        0x09, 0x49,         /*      Usage (49h),                    */
        0x95, 0x0F,         /*      Report Count (15),              */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0x85, 0xA7,         /*      Report ID (167),                */
        0x09, 0x4A,         /*      Usage (4Ah),                    */
        0x95, 0x01,         /*      Report Count (1),               */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0x85, 0xA8,         /*      Report ID (168),                */
        0x09, 0x4B,         /*      Usage (4Bh),                    */
        0x95, 0x01,         /*      Report Count (1),               */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0x85, 0xA9,         /*      Report ID (169),                */
        0x09, 0x4C,         /*      Usage (4Ch),                    */
        0x95, 0x08,         /*      Report Count (8),               */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0x85, 0xAA,         /*      Report ID (170),                */
        0x09, 0x4E,         /*      Usage (4Eh),                    */
        0x95, 0x01,         /*      Report Count (1),               */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0x85, 0xAB,         /*      Report ID (171),                */
        0x09, 0x4F,         /*      Usage (4Fh),                    */
        0x95, 0x39,         /*      Report Count (57),              */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0x85, 0xAC,         /*      Report ID (172),                */
        0x09, 0x50,         /*      Usage (50h),                    */
        0x95, 0x39,         /*      Report Count (57),              */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0x85, 0xAD,         /*      Report ID (173),                */
        0x09, 0x51,         /*      Usage (51h),                    */
        0x95, 0x0B,         /*      Report Count (11),              */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0x85, 0xAE,         /*      Report ID (174),                */
        0x09, 0x52,         /*      Usage (52h),                    */
        0x95, 0x01,         /*      Report Count (1),               */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0x85, 0xAF,         /*      Report ID (175),                */
        0x09, 0x53,         /*      Usage (53h),                    */
        0x95, 0x02,         /*      Report Count (2),               */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0x85, 0xB0,         /*      Report ID (176),                */
        0x09, 0x54,         /*      Usage (54h),                    */
        0x95, 0x3F,         /*      Report Count (63),              */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0xC0                /*  End Collection                      */
};

/*
 * The default behavior of the Dualshock 4 is to send reports using report
 * type 1 when running over Bluetooth. However, as soon as it receives a
 * report of type 17 to set the LEDs or rumble it starts returning it's state
 * in report 17 instead of 1.  Since report 17 is undefined in the default HID
 * descriptor the button and axis definitions must be moved to report 17 or
 * the HID layer won't process the received input once a report is sent.
 */
static u8 dualshock4_bt_rdesc[] = {
        0x05, 0x01,         /*  Usage Page (Desktop),               */
        0x09, 0x05,         /*  Usage (Gamepad),                    */
        0xA1, 0x01,         /*  Collection (Application),           */
        0x85, 0x01,         /*      Report ID (1),                  */
        0x75, 0x08,         /*      Report Size (8),                */
        0x95, 0x0A,         /*      Report Count (9),               */
        0x81, 0x02,         /*      Input (Variable),               */
        0x06, 0x04, 0xFF,   /*      Usage Page (FF04h),             */
        0x85, 0x02,         /*      Report ID (2),                  */
        0x09, 0x24,         /*      Usage (24h),                    */
        0x95, 0x24,         /*      Report Count (36),              */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0x85, 0xA3,         /*      Report ID (163),                */
        0x09, 0x25,         /*      Usage (25h),                    */
        0x95, 0x30,         /*      Report Count (48),              */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0x85, 0x05,         /*      Report ID (5),                  */
        0x09, 0x26,         /*      Usage (26h),                    */
        0x95, 0x28,         /*      Report Count (40),              */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0x85, 0x06,         /*      Report ID (6),                  */
        0x09, 0x27,         /*      Usage (27h),                    */
        0x95, 0x34,         /*      Report Count (52),              */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0x85, 0x07,         /*      Report ID (7),                  */
        0x09, 0x28,         /*      Usage (28h),                    */
        0x95, 0x30,         /*      Report Count (48),              */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0x85, 0x08,         /*      Report ID (8),                  */
        0x09, 0x29,         /*      Usage (29h),                    */
        0x95, 0x2F,         /*      Report Count (47),              */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0x06, 0x03, 0xFF,   /*      Usage Page (FF03h),             */
        0x85, 0x03,         /*      Report ID (3),                  */
        0x09, 0x21,         /*      Usage (21h),                    */
        0x95, 0x26,         /*      Report Count (38),              */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0x85, 0x04,         /*      Report ID (4),                  */
        0x09, 0x22,         /*      Usage (22h),                    */
        0x95, 0x2E,         /*      Report Count (46),              */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0x85, 0xF0,         /*      Report ID (240),                */
        0x09, 0x47,         /*      Usage (47h),                    */
        0x95, 0x3F,         /*      Report Count (63),              */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0x85, 0xF1,         /*      Report ID (241),                */
        0x09, 0x48,         /*      Usage (48h),                    */
        0x95, 0x3F,         /*      Report Count (63),              */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0x85, 0xF2,         /*      Report ID (242),                */
        0x09, 0x49,         /*      Usage (49h),                    */
        0x95, 0x0F,         /*      Report Count (15),              */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0x85, 0x11,         /*      Report ID (17),                 */
        0x06, 0x00, 0xFF,   /*      Usage Page (FF00h),             */
        0x09, 0x20,         /*      Usage (20h),                    */
        0x95, 0x02,         /*      Report Count (2),               */
        0x81, 0x02,         /*      Input (Variable),               */
        0x05, 0x01,         /*      Usage Page (Desktop),           */
        0x09, 0x30,         /*      Usage (X),                      */
        0x09, 0x31,         /*      Usage (Y),                      */
        0x09, 0x32,         /*      Usage (Z),                      */
        0x09, 0x35,         /*      Usage (Rz),                     */
        0x15, 0x00,         /*      Logical Minimum (0),            */
        0x26, 0xFF, 0x00,   /*      Logical Maximum (255),          */
        0x75, 0x08,         /*      Report Size (8),                */
        0x95, 0x04,         /*      Report Count (4),               */
        0x81, 0x02,         /*      Input (Variable),               */
        0x09, 0x39,         /*      Usage (Hat Switch),             */
        0x15, 0x00,         /*      Logical Minimum (0),            */
        0x25, 0x07,         /*      Logical Maximum (7),            */
        0x75, 0x04,         /*      Report Size (4),                */
        0x95, 0x01,         /*      Report Count (1),               */
        0x81, 0x42,         /*      Input (Variable, Null State),   */
        0x05, 0x09,         /*      Usage Page (Button),            */
        0x19, 0x01,         /*      Usage Minimum (01h),            */
        0x29, 0x0E,         /*      Usage Maximum (0Eh),            */
        0x15, 0x00,         /*      Logical Minimum (0),            */
        0x25, 0x01,         /*      Logical Maximum (1),            */
        0x75, 0x01,         /*      Report Size (1),                */
        0x95, 0x0E,         /*      Report Count (14),              */
        0x81, 0x02,         /*      Input (Variable),               */
        0x75, 0x06,         /*      Report Size (6),                */
        0x95, 0x01,         /*      Report Count (1),               */
        0x81, 0x01,         /*      Input (Constant),               */
        0x05, 0x01,         /*      Usage Page (Desktop),           */
        0x09, 0x33,         /*      Usage (Rx),                     */
        0x09, 0x34,         /*      Usage (Ry),                     */
        0x15, 0x00,         /*      Logical Minimum (0),            */
        0x26, 0xFF, 0x00,   /*      Logical Maximum (255),          */
        0x75, 0x08,         /*      Report Size (8),                */
        0x95, 0x02,         /*      Report Count (2),               */
        0x81, 0x02,         /*      Input (Variable),               */
        0x06, 0x00, 0xFF,   /*      Usage Page (FF00h),             */
        0x09, 0x20,         /*      Usage (20h),                    */
        0x95, 0x03,         /*      Report Count (3),               */
        0x81, 0x02,         /*      Input (Variable),               */
        0x05, 0x01,         /*      Usage Page (Desktop),           */
        0x19, 0x40,         /*      Usage Minimum (40h),            */
        0x29, 0x42,         /*      Usage Maximum (42h),            */
        0x16, 0x00, 0x80,   /*      Logical Minimum (-32768),       */
        0x26, 0x00, 0x7F,   /*      Logical Maximum (32767),        */
        0x75, 0x10,         /*      Report Size (16),               */
        0x95, 0x03,         /*      Report Count (3),               */
        0x81, 0x02,         /*      Input (Variable),               */
        0x19, 0x43,         /*      Usage Minimum (43h),            */
        0x29, 0x45,         /*      Usage Maximum (45h),            */
        0x16, 0xFF, 0xBF,   /*      Logical Minimum (-16385),       */
        0x26, 0x00, 0x40,   /*      Logical Maximum (16384),        */
        0x95, 0x03,         /*      Report Count (3),               */
        0x81, 0x02,         /*      Input (Variable),               */
        0x06, 0x00, 0xFF,   /*      Usage Page (FF00h),             */
        0x09, 0x20,         /*      Usage (20h),                    */
        0x15, 0x00,         /*      Logical Minimum (0),            */
        0x26, 0xFF, 0x00,   /*      Logical Maximum (255),          */
        0x75, 0x08,         /*      Report Size (8),                */
        0x95, 0x31,         /*      Report Count (51),              */
        0x81, 0x02,         /*      Input (Variable),               */
        0x09, 0x21,         /*      Usage (21h),                    */
        0x75, 0x08,         /*      Report Size (8),                */
        0x95, 0x4D,         /*      Report Count (77),              */
        0x91, 0x02,         /*      Output (Variable),              */
        0x85, 0x12,         /*      Report ID (18),                 */
        0x09, 0x22,         /*      Usage (22h),                    */
        0x95, 0x8D,         /*      Report Count (141),             */
        0x81, 0x02,         /*      Input (Variable),               */
        0x09, 0x23,         /*      Usage (23h),                    */
        0x91, 0x02,         /*      Output (Variable),              */
        0x85, 0x13,         /*      Report ID (19),                 */
        0x09, 0x24,         /*      Usage (24h),                    */
        0x95, 0xCD,         /*      Report Count (205),             */
        0x81, 0x02,         /*      Input (Variable),               */
        0x09, 0x25,         /*      Usage (25h),                    */
        0x91, 0x02,         /*      Output (Variable),              */
        0x85, 0x14,         /*      Report ID (20),                 */
        0x09, 0x26,         /*      Usage (26h),                    */
        0x96, 0x0D, 0x01,   /*      Report Count (269),             */
        0x81, 0x02,         /*      Input (Variable),               */
        0x09, 0x27,         /*      Usage (27h),                    */
        0x91, 0x02,         /*      Output (Variable),              */
        0x85, 0x15,         /*      Report ID (21),                 */
        0x09, 0x28,         /*      Usage (28h),                    */
        0x96, 0x4D, 0x01,   /*      Report Count (333),             */
        0x81, 0x02,         /*      Input (Variable),               */
        0x09, 0x29,         /*      Usage (29h),                    */
        0x91, 0x02,         /*      Output (Variable),              */
        0x85, 0x16,         /*      Report ID (22),                 */
        0x09, 0x2A,         /*      Usage (2Ah),                    */
        0x96, 0x8D, 0x01,   /*      Report Count (397),             */
        0x81, 0x02,         /*      Input (Variable),               */
        0x09, 0x2B,         /*      Usage (2Bh),                    */
        0x91, 0x02,         /*      Output (Variable),              */
        0x85, 0x17,         /*      Report ID (23),                 */
        0x09, 0x2C,         /*      Usage (2Ch),                    */
        0x96, 0xCD, 0x01,   /*      Report Count (461),             */
        0x81, 0x02,         /*      Input (Variable),               */
        0x09, 0x2D,         /*      Usage (2Dh),                    */
        0x91, 0x02,         /*      Output (Variable),              */
        0x85, 0x18,         /*      Report ID (24),                 */
        0x09, 0x2E,         /*      Usage (2Eh),                    */
        0x96, 0x0D, 0x02,   /*      Report Count (525),             */
        0x81, 0x02,         /*      Input (Variable),               */
        0x09, 0x2F,         /*      Usage (2Fh),                    */
        0x91, 0x02,         /*      Output (Variable),              */
        0x85, 0x19,         /*      Report ID (25),                 */
        0x09, 0x30,         /*      Usage (30h),                    */
        0x96, 0x22, 0x02,   /*      Report Count (546),             */
        0x81, 0x02,         /*      Input (Variable),               */
        0x09, 0x31,         /*      Usage (31h),                    */
        0x91, 0x02,         /*      Output (Variable),              */
        0x06, 0x80, 0xFF,   /*      Usage Page (FF80h),             */
        0x85, 0x82,         /*      Report ID (130),                */
        0x09, 0x22,         /*      Usage (22h),                    */
        0x95, 0x3F,         /*      Report Count (63),              */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0x85, 0x83,         /*      Report ID (131),                */
        0x09, 0x23,         /*      Usage (23h),                    */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0x85, 0x84,         /*      Report ID (132),                */
        0x09, 0x24,         /*      Usage (24h),                    */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0x85, 0x90,         /*      Report ID (144),                */
        0x09, 0x30,         /*      Usage (30h),                    */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0x85, 0x91,         /*      Report ID (145),                */
        0x09, 0x31,         /*      Usage (31h),                    */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0x85, 0x92,         /*      Report ID (146),                */
        0x09, 0x32,         /*      Usage (32h),                    */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0x85, 0x93,         /*      Report ID (147),                */
        0x09, 0x33,         /*      Usage (33h),                    */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0x85, 0xA0,         /*      Report ID (160),                */
        0x09, 0x40,         /*      Usage (40h),                    */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0x85, 0xA4,         /*      Report ID (164),                */
        0x09, 0x44,         /*      Usage (44h),                    */
        0xB1, 0x02,         /*      Feature (Variable),             */
        0xC0                /*  End Collection                      */
};

static __u8 ps3remote_rdesc[] = {
        0x05, 0x01,          /* GUsagePage Generic Desktop */
        0x09, 0x05,          /* LUsage 0x05 [Game Pad] */
        0xA1, 0x01,          /* MCollection Application (mouse, keyboard) */

         /* Use collection 1 for joypad buttons */
         0xA1, 0x02,         /* MCollection Logical (interrelated data) */

          /* Ignore the 1st byte, maybe it is used for a controller
           * number but it's not needed for correct operation */
          0x75, 0x08,        /* GReportSize 0x08 [8] */
          0x95, 0x01,        /* GReportCount 0x01 [1] */
          0x81, 0x01,        /* MInput 0x01 (Const[0] Arr[1] Abs[2]) */

          /* Bytes from 2nd to 4th are a bitmap for joypad buttons, for these
           * buttons multiple keypresses are allowed */
          0x05, 0x09,        /* GUsagePage Button */
          0x19, 0x01,        /* LUsageMinimum 0x01 [Button 1 (primary/trigger)] */
          0x29, 0x18,        /* LUsageMaximum 0x18 [Button 24] */
          0x14,              /* GLogicalMinimum [0] */
          0x25, 0x01,        /* GLogicalMaximum 0x01 [1] */
          0x75, 0x01,        /* GReportSize 0x01 [1] */
          0x95, 0x18,        /* GReportCount 0x18 [24] */
          0x81, 0x02,        /* MInput 0x02 (Data[0] Var[1] Abs[2]) */

          0xC0,              /* MEndCollection */

         /* Use collection 2 for remote control buttons */
         0xA1, 0x02,         /* MCollection Logical (interrelated data) */

          /* 5th byte is used for remote control buttons */
          0x05, 0x09,        /* GUsagePage Button */
          0x18,              /* LUsageMinimum [No button pressed] */
          0x29, 0xFE,        /* LUsageMaximum 0xFE [Button 254] */
          0x14,              /* GLogicalMinimum [0] */
          0x26, 0xFE, 0x00,  /* GLogicalMaximum 0x00FE [254] */
          0x75, 0x08,        /* GReportSize 0x08 [8] */
          0x95, 0x01,        /* GReportCount 0x01 [1] */
          0x80,              /* MInput  */

          /* Ignore bytes from 6th to 11th, 6th to 10th are always constant at
           * 0xff and 11th is for press indication */
          0x75, 0x08,        /* GReportSize 0x08 [8] */
          0x95, 0x06,        /* GReportCount 0x06 [6] */
          0x81, 0x01,        /* MInput 0x01 (Const[0] Arr[1] Abs[2]) */

          /* 12th byte is for battery strength */
          0x05, 0x06,        /* GUsagePage Generic Device Controls */
          0x09, 0x20,        /* LUsage 0x20 [Battery Strength] */
          0x14,              /* GLogicalMinimum [0] */
          0x25, 0x05,        /* GLogicalMaximum 0x05 [5] */
          0x75, 0x08,        /* GReportSize 0x08 [8] */
          0x95, 0x01,        /* GReportCount 0x01 [1] */
          0x81, 0x02,        /* MInput 0x02 (Data[0] Var[1] Abs[2]) */

          0xC0,              /* MEndCollection */

         0xC0                /* MEndCollection [Game Pad] */
};

static const unsigned int ps3remote_keymap_joypad_buttons[] = {
        [0x01] = KEY_SELECT,
        [0x02] = BTN_THUMBL,            /* L3 */
        [0x03] = BTN_THUMBR,            /* R3 */
        [0x04] = BTN_START,
        [0x05] = KEY_UP,
        [0x06] = KEY_RIGHT,
        [0x07] = KEY_DOWN,
        [0x08] = KEY_LEFT,
        [0x09] = BTN_TL2,               /* L2 */
        [0x0a] = BTN_TR2,               /* R2 */
        [0x0b] = BTN_TL,                /* L1 */
        [0x0c] = BTN_TR,                /* R1 */
        [0x0d] = KEY_OPTION,            /* options/triangle */
        [0x0e] = KEY_BACK,              /* back/circle */
        [0x0f] = BTN_0,                 /* cross */
        [0x10] = KEY_SCREEN,            /* view/square */
        [0x11] = KEY_HOMEPAGE,          /* PS button */
        [0x14] = KEY_ENTER,
};
static const unsigned int ps3remote_keymap_remote_buttons[] = {
        [0x00] = KEY_1,
        [0x01] = KEY_2,
        [0x02] = KEY_3,
        [0x03] = KEY_4,
        [0x04] = KEY_5,
        [0x05] = KEY_6,
        [0x06] = KEY_7,
        [0x07] = KEY_8,
        [0x08] = KEY_9,
        [0x09] = KEY_0,
        [0x0e] = KEY_ESC,               /* return */
        [0x0f] = KEY_CLEAR,
        [0x16] = KEY_EJECTCD,
        [0x1a] = KEY_MENU,              /* top menu */
        [0x28] = KEY_TIME,
        [0x30] = KEY_PREVIOUS,
        [0x31] = KEY_NEXT,
        [0x32] = KEY_PLAY,
        [0x33] = KEY_REWIND,            /* scan back */
        [0x34] = KEY_FORWARD,           /* scan forward */
        [0x38] = KEY_STOP,
        [0x39] = KEY_PAUSE,
        [0x40] = KEY_CONTEXT_MENU,      /* pop up/menu */
        [0x60] = KEY_FRAMEBACK,         /* slow/step back */
        [0x61] = KEY_FRAMEFORWARD,      /* slow/step forward */
        [0x63] = KEY_SUBTITLE,
        [0x64] = KEY_AUDIO,
        [0x65] = KEY_ANGLE,
        [0x70] = KEY_INFO,              /* display */
        [0x80] = KEY_BLUE,
        [0x81] = KEY_RED,
        [0x82] = KEY_GREEN,
        [0x83] = KEY_YELLOW,
};

static const unsigned int buzz_keymap[] = {
        /*
         * The controller has 4 remote buzzers, each with one LED and 5
         * buttons.
         * 
         * We use the mapping chosen by the controller, which is:
         *
         * Key          Offset
         * -------------------
         * Buzz              1
         * Blue              5
         * Orange            4
         * Green             3
         * Yellow            2
         *
         * So, for example, the orange button on the third buzzer is mapped to
         * BTN_TRIGGER_HAPPY14
         */
        [ 1] = BTN_TRIGGER_HAPPY1,
        [ 2] = BTN_TRIGGER_HAPPY2,
        [ 3] = BTN_TRIGGER_HAPPY3,
        [ 4] = BTN_TRIGGER_HAPPY4,
        [ 5] = BTN_TRIGGER_HAPPY5,
        [ 6] = BTN_TRIGGER_HAPPY6,
        [ 7] = BTN_TRIGGER_HAPPY7,
        [ 8] = BTN_TRIGGER_HAPPY8,
        [ 9] = BTN_TRIGGER_HAPPY9,
        [10] = BTN_TRIGGER_HAPPY10,
        [11] = BTN_TRIGGER_HAPPY11,
        [12] = BTN_TRIGGER_HAPPY12,
        [13] = BTN_TRIGGER_HAPPY13,
        [14] = BTN_TRIGGER_HAPPY14,
        [15] = BTN_TRIGGER_HAPPY15,
        [16] = BTN_TRIGGER_HAPPY16,
        [17] = BTN_TRIGGER_HAPPY17,
        [18] = BTN_TRIGGER_HAPPY18,
        [19] = BTN_TRIGGER_HAPPY19,
        [20] = BTN_TRIGGER_HAPPY20,
};

static enum power_supply_property sony_battery_props[] = {
        POWER_SUPPLY_PROP_PRESENT,
        POWER_SUPPLY_PROP_CAPACITY,
        POWER_SUPPLY_PROP_SCOPE,
        POWER_SUPPLY_PROP_STATUS,
};

static spinlock_t sony_dev_list_lock;
static LIST_HEAD(sony_device_list);

struct sony_sc {
        spinlock_t lock;
        struct list_head list_node;
        struct hid_device *hdev;
        struct led_classdev *leds[MAX_LEDS];
        unsigned long quirks;
        struct work_struct state_worker;
        struct power_supply battery;

#ifdef CONFIG_SONY_FF
        __u8 left;
        __u8 right;
#endif

        __u8 mac_address[6];
        __u8 worker_initialized;
        __u8 cable_state;
        __u8 battery_charging;
        __u8 battery_capacity;
        __u8 led_state[MAX_LEDS];
        __u8 led_count;
};

static __u8 *ps3remote_fixup(struct hid_device *hdev, __u8 *rdesc,
                             unsigned int *rsize)
{
        *rsize = sizeof(ps3remote_rdesc);
        return ps3remote_rdesc;
}

static int ps3remote_mapping(struct hid_device *hdev, struct hid_input *hi,
                             struct hid_field *field, struct hid_usage *usage,
                             unsigned long **bit, int *max)
{
        unsigned int key = usage->hid & HID_USAGE;

        if ((usage->hid & HID_USAGE_PAGE) != HID_UP_BUTTON)
                return -1;

        switch (usage->collection_index) {
        case 1:
                if (key >= ARRAY_SIZE(ps3remote_keymap_joypad_buttons))
                        return -1;

                key = ps3remote_keymap_joypad_buttons[key];
                if (!key)
                        return -1;
                break;
        case 2:
                if (key >= ARRAY_SIZE(ps3remote_keymap_remote_buttons))
                        return -1;

                key = ps3remote_keymap_remote_buttons[key];
                if (!key)
                        return -1;
                break;
        default:
                return -1;
        }

        hid_map_usage_clear(hi, usage, bit, max, EV_KEY, key);
        return 1;
}


/* Sony Vaio VGX has wrongly mouse pointer declared as constant */
static __u8 *sony_report_fixup(struct hid_device *hdev, __u8 *rdesc,
                unsigned int *rsize)
{
        struct sony_sc *sc = hid_get_drvdata(hdev);

        /*
         * Some Sony RF receivers wrongly declare the mouse pointer as a
         * a constant non-data variable.
         */
        if ((sc->quirks & VAIO_RDESC_CONSTANT) && *rsize >= 56 &&
            /* usage page: generic desktop controls */
            /* rdesc[0] == 0x05 && rdesc[1] == 0x01 && */
            /* usage: mouse */
            rdesc[2] == 0x09 && rdesc[3] == 0x02 &&
            /* input (usage page for x,y axes): constant, variable, relative */
            rdesc[54] == 0x81 && rdesc[55] == 0x07) {
                hid_info(hdev, "Fixing up Sony RF Receiver report descriptor\n");
                /* input: data, variable, relative */
                rdesc[55] = 0x06;
        }

        /*
         * The default Dualshock 4 USB descriptor doesn't assign
         * the gyroscope values to corresponding axes so we need a
         * modified one.
         */
        if ((sc->quirks & DUALSHOCK4_CONTROLLER_USB) && *rsize == 467) {
                hid_info(hdev, "Using modified Dualshock 4 report descriptor with gyroscope axes\n");
                rdesc = dualshock4_usb_rdesc;
                *rsize = sizeof(dualshock4_usb_rdesc);
        } else if ((sc->quirks & DUALSHOCK4_CONTROLLER_BT) && *rsize == 357) {
                hid_info(hdev, "Using modified Dualshock 4 Bluetooth report descriptor\n");
                rdesc = dualshock4_bt_rdesc;
                *rsize = sizeof(dualshock4_bt_rdesc);
        }

        /* The HID descriptor exposed over BT has a trailing zero byte */
        if ((((sc->quirks & SIXAXIS_CONTROLLER_USB) && *rsize == 148) ||
                        ((sc->quirks & SIXAXIS_CONTROLLER_BT) && *rsize == 149)) &&
                        rdesc[83] == 0x75) {
                hid_info(hdev, "Fixing up Sony Sixaxis report descriptor\n");
                memcpy((void *)&rdesc[83], (void *)&sixaxis_rdesc_fixup,
                        sizeof(sixaxis_rdesc_fixup));
        } else if (sc->quirks & SIXAXIS_CONTROLLER_USB &&
                   *rsize > sizeof(sixaxis_rdesc_fixup2)) {
                hid_info(hdev, "Sony Sixaxis clone detected. Using original report descriptor (size: %d clone; %d new)\n",
                         *rsize, (int)sizeof(sixaxis_rdesc_fixup2));
                *rsize = sizeof(sixaxis_rdesc_fixup2);
                memcpy(rdesc, &sixaxis_rdesc_fixup2, *rsize);
        }

        if (sc->quirks & PS3REMOTE)
                return ps3remote_fixup(hdev, rdesc, rsize);

        return rdesc;
}

static void sixaxis_parse_report(struct sony_sc *sc, __u8 *rd, int size)
{
        static const __u8 sixaxis_battery_capacity[] = { 0, 1, 25, 50, 75, 100 };
        unsigned long flags;
        __u8 cable_state, battery_capacity, battery_charging;

        /*
         * The sixaxis is charging if the battery value is 0xee
         * and it is fully charged if the value is 0xef.
         * It does not report the actual level while charging so it
         * is set to 100% while charging is in progress.
         */
        if (rd[30] >= 0xee) {
                battery_capacity = 100;
                battery_charging = !(rd[30] & 0x01);
        } else {
                __u8 index = rd[30] <= 5 ? rd[30] : 5;
                battery_capacity = sixaxis_battery_capacity[index];
                battery_charging = 0;
        }
        cable_state = !(rd[31] & 0x04);

        spin_lock_irqsave(&sc->lock, flags);
        sc->cable_state = cable_state;
        sc->battery_capacity = battery_capacity;
        sc->battery_charging = battery_charging;
        spin_unlock_irqrestore(&sc->lock, flags);
}

static void dualshock4_parse_report(struct sony_sc *sc, __u8 *rd, int size)
{
        struct hid_input *hidinput = list_entry(sc->hdev->inputs.next,
                                                struct hid_input, list);
        struct input_dev *input_dev = hidinput->input;
        unsigned long flags;
        int n, offset;
        __u8 cable_state, battery_capacity, battery_charging;

        /*
         * Battery and touchpad data starts at byte 30 in the USB report and
         * 32 in Bluetooth report.
         */
        offset = (sc->quirks & DUALSHOCK4_CONTROLLER_USB) ? 30 : 32;

        /*
         * The lower 4 bits of byte 30 contain the battery level
         * and the 5th bit contains the USB cable state.
         */
        cable_state = (rd[offset] >> 4) & 0x01;
        battery_capacity = rd[offset] & 0x0F;

        /*
         * When a USB power source is connected the battery level ranges from
         * 0 to 10, and when running on battery power it ranges from 0 to 9.
         * A battery level above 10 when plugged in means charge completed.
         */
        if (!cable_state || battery_capacity > 10)
                battery_charging = 0;
        else
                battery_charging = 1;

        if (!cable_state)
                battery_capacity++;
        if (battery_capacity > 10)
                battery_capacity = 10;

        battery_capacity *= 10;

        spin_lock_irqsave(&sc->lock, flags);
        sc->cable_state = cable_state;
        sc->battery_capacity = battery_capacity;
        sc->battery_charging = battery_charging;
        spin_unlock_irqrestore(&sc->lock, flags);

        offset += 5;

        /*
         * The Dualshock 4 multi-touch trackpad data starts at offset 35 on USB
         * and 37 on Bluetooth.
         * The first 7 bits of the first byte is a counter and bit 8 is a touch
         * indicator that is 0 when pressed and 1 when not pressed.
         * The next 3 bytes are two 12 bit touch coordinates, X and Y.
         * The data for the second touch is in the same format and immediatly
         * follows the data for the first.
         */
        for (n = 0; n < 2; n++) {
                __u16 x, y;

                x = rd[offset+1] | ((rd[offset+2] & 0xF) << 8);
                y = ((rd[offset+2] & 0xF0) >> 4) | (rd[offset+3] << 4);

                input_mt_slot(input_dev, n);
                input_mt_report_slot_state(input_dev, MT_TOOL_FINGER,
                                        !(rd[offset] >> 7));
                input_report_abs(input_dev, ABS_MT_POSITION_X, x);
                input_report_abs(input_dev, ABS_MT_POSITION_Y, y);

                offset += 4;
        }
}

static int sony_raw_event(struct hid_device *hdev, struct hid_report *report,
                __u8 *rd, int size)
{
        struct sony_sc *sc = hid_get_drvdata(hdev);

        /*
         * Sixaxis HID report has acclerometers/gyro with MSByte first, this
         * has to be BYTE_SWAPPED before passing up to joystick interface
         */
        if ((sc->quirks & SIXAXIS_CONTROLLER) && rd[0] == 0x01 && size == 49) {
                swap(rd[41], rd[42]);
                swap(rd[43], rd[44]);
                swap(rd[45], rd[46]);
                swap(rd[47], rd[48]);

                sixaxis_parse_report(sc, rd, size);
        } else if (((sc->quirks & DUALSHOCK4_CONTROLLER_USB) && rd[0] == 0x01 &&
                        size == 64) || ((sc->quirks & DUALSHOCK4_CONTROLLER_BT)
                        && rd[0] == 0x11 && size == 78)) {
                dualshock4_parse_report(sc, rd, size);
        }

        return 0;
}

static int sony_mapping(struct hid_device *hdev, struct hid_input *hi,
                        struct hid_field *field, struct hid_usage *usage,
                        unsigned long **bit, int *max)
{
        struct sony_sc *sc = hid_get_drvdata(hdev);

        if (sc->quirks & BUZZ_CONTROLLER) {
                unsigned int key = usage->hid & HID_USAGE;

                if ((usage->hid & HID_USAGE_PAGE) != HID_UP_BUTTON)
                        return -1;

                switch (usage->collection_index) {
                case 1:
                        if (key >= ARRAY_SIZE(buzz_keymap))
                                return -1;

                        key = buzz_keymap[key];
                        if (!key)
                                return -1;
                        break;
                default:
                        return -1;
                }

                hid_map_usage_clear(hi, usage, bit, max, EV_KEY, key);
                return 1;
        }

        if (sc->quirks & PS3REMOTE)
                return ps3remote_mapping(hdev, hi, field, usage, bit, max);

        /* Let hid-core decide for the others */
        return 0;
}

/*
 * Sending HID_REQ_GET_REPORT changes the operation mode of the ps3 controller
 * to "operational".  Without this, the ps3 controller will not report any
 * events.
 */
static int sixaxis_set_operational_usb(struct hid_device *hdev)
{
        int ret;
        char *buf = kmalloc(18, GFP_KERNEL);

        if (!buf)
                return -ENOMEM;

        ret = hid_hw_raw_request(hdev, 0xf2, buf, 17, HID_FEATURE_REPORT,
                                 HID_REQ_GET_REPORT);

        if (ret < 0)
                hid_err(hdev, "can't set operational mode\n");

        kfree(buf);

        return ret;
}

static int sixaxis_set_operational_bt(struct hid_device *hdev)
{
        unsigned char buf[] = { 0xf4,  0x42, 0x03, 0x00, 0x00 };
        return hid_hw_raw_request(hdev, buf[0], buf, sizeof(buf),
                                  HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
}

/*
 * Requesting feature report 0x02 in Bluetooth mode changes the state of the
 * controller so that it sends full input reports of type 0x11.
 */
static int dualshock4_set_operational_bt(struct hid_device *hdev)
{
        __u8 buf[37] = { 0 };

        return hid_hw_raw_request(hdev, 0x02, buf, sizeof(buf),
                                HID_FEATURE_REPORT, HID_REQ_GET_REPORT);
}

static void buzz_set_leds(struct hid_device *hdev, const __u8 *leds)
{
        struct list_head *report_list =
                &hdev->report_enum[HID_OUTPUT_REPORT].report_list;
        struct hid_report *report = list_entry(report_list->next,
                struct hid_report, list);
        __s32 *value = report->field[0]->value;

        value[0] = 0x00;
        value[1] = leds[0] ? 0xff : 0x00;
        value[2] = leds[1] ? 0xff : 0x00;
        value[3] = leds[2] ? 0xff : 0x00;
        value[4] = leds[3] ? 0xff : 0x00;
        value[5] = 0x00;
        value[6] = 0x00;
        hid_hw_request(hdev, report, HID_REQ_SET_REPORT);
}

static void sony_set_leds(struct hid_device *hdev, const __u8 *leds, int count)
{
        struct sony_sc *drv_data = hid_get_drvdata(hdev);
        int n;

        BUG_ON(count > MAX_LEDS);

        if (drv_data->quirks & BUZZ_CONTROLLER && count == 4) {
                buzz_set_leds(hdev, leds);
        } else {
                for (n = 0; n < count; n++)
                        drv_data->led_state[n] = leds[n];
                schedule_work(&drv_data->state_worker);
        }
}

static void sony_led_set_brightness(struct led_classdev *led,
                                    enum led_brightness value)
{
        struct device *dev = led->dev->parent;
        struct hid_device *hdev = container_of(dev, struct hid_device, dev);
        struct sony_sc *drv_data;

        int n;

        drv_data = hid_get_drvdata(hdev);
        if (!drv_data) {
                hid_err(hdev, "No device data\n");
                return;
        }

        for (n = 0; n < drv_data->led_count; n++) {
                if (led == drv_data->leds[n]) {
                        if (value != drv_data->led_state[n]) {
                                drv_data->led_state[n] = value;
                                sony_set_leds(hdev, drv_data->led_state, drv_data->led_count);
                        }
                        break;
                }
        }
}

static enum led_brightness sony_led_get_brightness(struct led_classdev *led)
{
        struct device *dev = led->dev->parent;
        struct hid_device *hdev = container_of(dev, struct hid_device, dev);
        struct sony_sc *drv_data;

        int n;

        drv_data = hid_get_drvdata(hdev);
        if (!drv_data) {
                hid_err(hdev, "No device data\n");
                return LED_OFF;
        }

        for (n = 0; n < drv_data->led_count; n++) {
                if (led == drv_data->leds[n])
                        return drv_data->led_state[n];
        }

        return LED_OFF;
}

static void sony_leds_remove(struct hid_device *hdev)
{
        struct sony_sc *drv_data;
        struct led_classdev *led;
        int n;

        drv_data = hid_get_drvdata(hdev);
        BUG_ON(!(drv_data->quirks & SONY_LED_SUPPORT));

        for (n = 0; n < drv_data->led_count; n++) {
                led = drv_data->leds[n];
                drv_data->leds[n] = NULL;
                if (!led)
                        continue;
                led_classdev_unregister(led);
                kfree(led);
        }

        drv_data->led_count = 0;
}

static int sony_leds_init(struct hid_device *hdev)
{
        struct sony_sc *drv_data;
        int n, ret = 0;
        int max_brightness;
        int use_colors;
        struct led_classdev *led;
        size_t name_sz;
        char *name;
        size_t name_len;
        const char *name_fmt;
        static const char * const color_str[] = { "red", "green", "blue" };
        static const __u8 initial_values[MAX_LEDS] = { 0x00, 0x00, 0x00, 0x00 };

        drv_data = hid_get_drvdata(hdev);
        BUG_ON(!(drv_data->quirks & SONY_LED_SUPPORT));

        if (drv_data->quirks & BUZZ_CONTROLLER) {
                drv_data->led_count = 4;
                max_brightness = 1;
                use_colors = 0;
                name_len = strlen("::buzz#");
                name_fmt = "%s::buzz%d";
                /* Validate expected report characteristics. */
                if (!hid_validate_values(hdev, HID_OUTPUT_REPORT, 0, 0, 7))
                        return -ENODEV;
        } else if (drv_data->quirks & DUALSHOCK4_CONTROLLER) {
                drv_data->led_count = 3;
                max_brightness = 255;
                use_colors = 1;
                name_len = 0;
                name_fmt = "%s:%s";
        } else {
                drv_data->led_count = 4;
                max_brightness = 1;
                use_colors = 0;
                name_len = strlen("::sony#");
                name_fmt = "%s::sony%d";
        }

        /*
         * Clear LEDs as we have no way of reading their initial state. This is
         * only relevant if the driver is loaded after somebody actively set the
         * LEDs to on
         */
        sony_set_leds(hdev, initial_values, drv_data->led_count);

        name_sz = strlen(dev_name(&hdev->dev)) + name_len + 1;

        for (n = 0; n < drv_data->led_count; n++) {

                if (use_colors)
                        name_sz = strlen(dev_name(&hdev->dev)) + strlen(color_str[n]) + 2;

                led = kzalloc(sizeof(struct led_classdev) + name_sz, GFP_KERNEL);
                if (!led) {
                        hid_err(hdev, "Couldn't allocate memory for LED %d\n", n);
                        ret = -ENOMEM;
                        goto error_leds;
                }

                name = (void *)(&led[1]);
                if (use_colors)
                        snprintf(name, name_sz, name_fmt, dev_name(&hdev->dev), color_str[n]);
                else
                        snprintf(name, name_sz, name_fmt, dev_name(&hdev->dev), n + 1);
                led->name = name;
                led->brightness = 0;
                led->max_brightness = max_brightness;
                led->brightness_get = sony_led_get_brightness;
                led->brightness_set = sony_led_set_brightness;

                ret = led_classdev_register(&hdev->dev, led);
                if (ret) {
                        hid_err(hdev, "Failed to register LED %d\n", n);
                        kfree(led);
                        goto error_leds;
                }

                drv_data->leds[n] = led;
        }

        return ret;

error_leds:
        sony_leds_remove(hdev);

        return ret;
}

static void sixaxis_state_worker(struct work_struct *work)
{
        struct sony_sc *sc = container_of(work, struct sony_sc, state_worker);
        unsigned char buf[] = {
                0x01,
                0x00, 0xff, 0x00, 0xff, 0x00,
                0x00, 0x00, 0x00, 0x00, 0x00,
                0xff, 0x27, 0x10, 0x00, 0x32,
                0xff, 0x27, 0x10, 0x00, 0x32,
                0xff, 0x27, 0x10, 0x00, 0x32,
                0xff, 0x27, 0x10, 0x00, 0x32,
                0x00, 0x00, 0x00, 0x00, 0x00
        };

#ifdef CONFIG_SONY_FF
        buf[3] = sc->right ? 1 : 0;
        buf[5] = sc->left;
#endif

        buf[10] |= sc->led_state[0] << 1;
        buf[10] |= sc->led_state[1] << 2;
        buf[10] |= sc->led_state[2] << 3;
        buf[10] |= sc->led_state[3] << 4;

        hid_hw_raw_request(sc->hdev, 0x01, buf, sizeof(buf), HID_OUTPUT_REPORT,
                        HID_REQ_SET_REPORT);
}

static void dualshock4_state_worker(struct work_struct *work)
{
        struct sony_sc *sc = container_of(work, struct sony_sc, state_worker);
        struct hid_device *hdev = sc->hdev;
        int offset;

        __u8 buf[78] = { 0 };

        if (sc->quirks & DUALSHOCK4_CONTROLLER_USB) {
                buf[0] = 0x05;
                buf[1] = 0x03;
                offset = 4;
        } else {
                buf[0] = 0x11;
                buf[1] = 0xB0;
                buf[3] = 0x0F;
                offset = 6;
        }

#ifdef CONFIG_SONY_FF
        buf[offset++] = sc->right;
        buf[offset++] = sc->left;
#else
        offset += 2;
#endif

        buf[offset++] = sc->led_state[0];
        buf[offset++] = sc->led_state[1];
        buf[offset++] = sc->led_state[2];

        if (sc->quirks & DUALSHOCK4_CONTROLLER_USB)
                hid_hw_output_report(hdev, buf, 32);
        else
                hid_hw_raw_request(hdev, 0x11, buf, 78,
                                HID_OUTPUT_REPORT, HID_REQ_SET_REPORT);
}

#ifdef CONFIG_SONY_FF
static int sony_play_effect(struct input_dev *dev, void *data,
                            struct ff_effect *effect)
{
        struct hid_device *hid = input_get_drvdata(dev);
        struct sony_sc *sc = hid_get_drvdata(hid);

        if (effect->type != FF_RUMBLE)
                return 0;

        sc->left = effect->u.rumble.strong_magnitude / 256;
        sc->right = effect->u.rumble.weak_magnitude / 256;

        schedule_work(&sc->state_worker);
        return 0;
}

static int sony_init_ff(struct hid_device *hdev)
{
        struct hid_input *hidinput = list_entry(hdev->inputs.next,
                                                struct hid_input, list);
        struct input_dev *input_dev = hidinput->input;

        input_set_capability(input_dev, EV_FF, FF_RUMBLE);
        return input_ff_create_memless(input_dev, NULL, sony_play_effect);
}

#else
static int sony_init_ff(struct hid_device *hdev)
{
        return 0;
}

#endif

static int sony_battery_get_property(struct power_supply *psy,
                                     enum power_supply_property psp,
                                     union power_supply_propval *val)
{
        struct sony_sc *sc = container_of(psy, struct sony_sc, battery);
        unsigned long flags;
        int ret = 0;
        u8 battery_charging, battery_capacity, cable_state;

        spin_lock_irqsave(&sc->lock, flags);
        battery_charging = sc->battery_charging;
        battery_capacity = sc->battery_capacity;
        cable_state = sc->cable_state;
        spin_unlock_irqrestore(&sc->lock, flags);

        switch (psp) {
        case POWER_SUPPLY_PROP_PRESENT:
                val->intval = 1;
                break;
        case POWER_SUPPLY_PROP_SCOPE:
                val->intval = POWER_SUPPLY_SCOPE_DEVICE;
                break;
        case POWER_SUPPLY_PROP_CAPACITY:
                val->intval = battery_capacity;
                break;
        case POWER_SUPPLY_PROP_STATUS:
                if (battery_charging)
                        val->intval = POWER_SUPPLY_STATUS_CHARGING;
                else
                        if (battery_capacity == 100 && cable_state)
                                val->intval = POWER_SUPPLY_STATUS_FULL;
                        else
                                val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
                break;
        default:
                ret = -EINVAL;
                break;
        }
        return ret;
}

static int sony_battery_probe(struct sony_sc *sc)
{
        static atomic_t power_id_seq = ATOMIC_INIT(0);
        unsigned long power_id;
        struct hid_device *hdev = sc->hdev;
        int ret;

        /*
         * Set the default battery level to 100% to avoid low battery warnings
         * if the battery is polled before the first device report is received.
         */
        sc->battery_capacity = 100;

        power_id = (unsigned long)atomic_inc_return(&power_id_seq);

        sc->battery.properties = sony_battery_props;
        sc->battery.num_properties = ARRAY_SIZE(sony_battery_props);
        sc->battery.get_property = sony_battery_get_property;
        sc->battery.type = POWER_SUPPLY_TYPE_BATTERY;
        sc->battery.use_for_apm = 0;
        sc->battery.name = kasprintf(GFP_KERNEL, "sony_controller_battery_%lu",
                                     power_id);
        if (!sc->battery.name)
                return -ENOMEM;

        ret = power_supply_register(&hdev->dev, &sc->battery);
        if (ret) {
                hid_err(hdev, "Unable to register battery device\n");
                goto err_free;
        }

        power_supply_powers(&sc->battery, &hdev->dev);
        return 0;

err_free:
        kfree(sc->battery.name);
        sc->battery.name = NULL;
        return ret;
}

static void sony_battery_remove(struct sony_sc *sc)
{
        if (!sc->battery.name)
                return;

        power_supply_unregister(&sc->battery);
        kfree(sc->battery.name);
        sc->battery.name = NULL;
}

static int sony_register_touchpad(struct sony_sc *sc, int touch_count,
                                        int w, int h)
{
        struct hid_input *hidinput = list_entry(sc->hdev->inputs.next,
                                                struct hid_input, list);
        struct input_dev *input_dev = hidinput->input;
        int ret;

        ret = input_mt_init_slots(input_dev, touch_count, 0);
        if (ret < 0) {
                hid_err(sc->hdev, "Unable to initialize multi-touch slots\n");
                return ret;
        }

        input_set_abs_params(input_dev, ABS_MT_POSITION_X, 0, w, 0, 0);
        input_set_abs_params(input_dev, ABS_MT_POSITION_Y, 0, h, 0, 0);

        return 0;
}

/*
 * If a controller is plugged in via USB while already connected via Bluetooth
 * it will show up as two devices. A global list of connected controllers and
 * their MAC addresses is maintained to ensure that a device is only connected
 * once.
 */
static int sony_check_add_dev_list(struct sony_sc *sc)
{
        struct sony_sc *entry;
        unsigned long flags;
        int ret;

        spin_lock_irqsave(&sony_dev_list_lock, flags);

        list_for_each_entry(entry, &sony_device_list, list_node) {
                ret = memcmp(sc->mac_address, entry->mac_address,
                                sizeof(sc->mac_address));
                if (!ret) {
                        ret = -EEXIST;
                        hid_info(sc->hdev, "controller with MAC address %pMR already connected\n",
                                sc->mac_address);
                        goto unlock;
                }
        }

        ret = 0;
        list_add(&(sc->list_node), &sony_device_list);

unlock:
        spin_unlock_irqrestore(&sony_dev_list_lock, flags);
        return ret;
}

static void sony_remove_dev_list(struct sony_sc *sc)
{
        unsigned long flags;

        if (sc->list_node.next) {
                spin_lock_irqsave(&sony_dev_list_lock, flags);
                list_del(&(sc->list_node));
                spin_unlock_irqrestore(&sony_dev_list_lock, flags);
        }
}

static int sony_get_bt_devaddr(struct sony_sc *sc)
{
        int ret;

        /* HIDP stores the device MAC address as a string in the uniq field. */
        ret = strlen(sc->hdev->uniq);
        if (ret != 17)
                return -EINVAL;

        ret = sscanf(sc->hdev->uniq,
                "%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx",
                &sc->mac_address[5], &sc->mac_address[4], &sc->mac_address[3],
                &sc->mac_address[2], &sc->mac_address[1], &sc->mac_address[0]);

        if (ret != 6)
                return -EINVAL;

        return 0;
}

static int sony_check_add(struct sony_sc *sc)
{
        int n, ret;

        if ((sc->quirks & DUALSHOCK4_CONTROLLER_BT) ||
            (sc->quirks & SIXAXIS_CONTROLLER_BT)) {
                /*
                 * sony_get_bt_devaddr() attempts to parse the Bluetooth MAC
                 * address from the uniq string where HIDP stores it.
                 * As uniq cannot be guaranteed to be a MAC address in all cases
                 * a failure of this function should not prevent the connection.
                 */
                if (sony_get_bt_devaddr(sc) < 0) {
                        hid_warn(sc->hdev, "UNIQ does not contain a MAC address; duplicate check skipped\n");
                        return 0;
                }
        } else if (sc->quirks & DUALSHOCK4_CONTROLLER_USB) {
                __u8 buf[7];

                /*
                 * The MAC address of a DS4 controller connected via USB can be
                 * retrieved with feature report 0x81. The address begins at
                 * offset 1.
                 */
                ret = hid_hw_raw_request(sc->hdev, 0x81, buf, sizeof(buf),
                                HID_FEATURE_REPORT, HID_REQ_GET_REPORT);

                if (ret != 7) {
                        hid_err(sc->hdev, "failed to retrieve feature report 0x81 with the DualShock 4 MAC address\n");
                        return ret < 0 ? ret : -EINVAL;
                }

                memcpy(sc->mac_address, &buf[1], sizeof(sc->mac_address));
        } else if (sc->quirks & SIXAXIS_CONTROLLER_USB) {
                __u8 buf[18];

                /*
                 * The MAC address of a Sixaxis controller connected via USB can
                 * be retrieved with feature report 0xf2. The address begins at
                 * offset 4.
                 */
                ret = hid_hw_raw_request(sc->hdev, 0xf2, buf, sizeof(buf),
                                HID_FEATURE_REPORT, HID_REQ_GET_REPORT);

                if (ret != 18) {
                        hid_err(sc->hdev, "failed to retrieve feature report 0xf2 with the Sixaxis MAC address\n");
                        return ret < 0 ? ret : -EINVAL;
                }

                /*
                 * The Sixaxis device MAC in the report is big-endian and must
                 * be byte-swapped.
                 */
                for (n = 0; n < 6; n++)
                        sc->mac_address[5-n] = buf[4+n];
        } else {
                return 0;
        }

        return sony_check_add_dev_list(sc);
}


static int sony_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
        int ret;
        unsigned long quirks = id->driver_data;
        struct sony_sc *sc;
        unsigned int connect_mask = HID_CONNECT_DEFAULT;

        sc = devm_kzalloc(&hdev->dev, sizeof(*sc), GFP_KERNEL);
        if (sc == NULL) {
                hid_err(hdev, "can't alloc sony descriptor\n");
                return -ENOMEM;
        }

        sc->quirks = quirks;
        hid_set_drvdata(hdev, sc);
        sc->hdev = hdev;

        ret = hid_parse(hdev);
        if (ret) {
                hid_err(hdev, "parse failed\n");
                return ret;
        }

        if (sc->quirks & VAIO_RDESC_CONSTANT)
                connect_mask |= HID_CONNECT_HIDDEV_FORCE;
        else if (sc->quirks & SIXAXIS_CONTROLLER_USB)
                connect_mask |= HID_CONNECT_HIDDEV_FORCE;
        else if (sc->quirks & SIXAXIS_CONTROLLER_BT)
                connect_mask |= HID_CONNECT_HIDDEV_FORCE;

        ret = hid_hw_start(hdev, connect_mask);
        if (ret) {
                hid_err(hdev, "hw start failed\n");
                return ret;
        }

        if (sc->quirks & SIXAXIS_CONTROLLER_USB) {
                /*
                 * The Sony Sixaxis does not handle HID Output Reports on the
                 * Interrupt EP like it could, so we need to force HID Output
                 * Reports to use HID_REQ_SET_REPORT on the Control EP.
                 *
                 * There is also another issue about HID Output Reports via USB,
                 * the Sixaxis does not want the report_id as part of the data
                 * packet, so we have to discard buf[0] when sending the actual
                 * control message, even for numbered reports, humpf!
                 */
                hdev->quirks |= HID_QUIRK_NO_OUTPUT_REPORTS_ON_INTR_EP;
                hdev->quirks |= HID_QUIRK_SKIP_OUTPUT_REPORT_ID;
                ret = sixaxis_set_operational_usb(hdev);
                sc->worker_initialized = 1;
                INIT_WORK(&sc->state_worker, sixaxis_state_worker);
        } else if (sc->quirks & SIXAXIS_CONTROLLER_BT) {
                /*
                 * The Sixaxis wants output reports sent on the ctrl endpoint
                 * when connected via Bluetooth.
                 */
                hdev->quirks |= HID_QUIRK_NO_OUTPUT_REPORTS_ON_INTR_EP;
                ret = sixaxis_set_operational_bt(hdev);
                sc->worker_initialized = 1;
                INIT_WORK(&sc->state_worker, sixaxis_state_worker);
        } else if (sc->quirks & DUALSHOCK4_CONTROLLER) {
                if (sc->quirks & DUALSHOCK4_CONTROLLER_BT) {
                        /*
                         * The DualShock 4 wants output reports sent on the ctrl
                         * endpoint when connected via Bluetooth.
                         */
                        hdev->quirks |= HID_QUIRK_NO_OUTPUT_REPORTS_ON_INTR_EP;
                        ret = dualshock4_set_operational_bt(hdev);
                        if (ret < 0) {
                                hid_err(hdev, "failed to set the Dualshock 4 operational mode\n");
                                goto err_stop;
                        }
                }
                /*
                 * The Dualshock 4 touchpad supports 2 touches and has a
                 * resolution of 1920x940.
                 */
                ret = sony_register_touchpad(sc, 2, 1920, 940);
                if (ret < 0)
                        goto err_stop;

                sc->worker_initialized = 1;
                INIT_WORK(&sc->state_worker, dualshock4_state_worker);
        } else {
                ret = 0;
        }

        if (ret < 0)
                goto err_stop;

        ret = sony_check_add(sc);
        if (ret < 0)
                goto err_stop;

        if (sc->quirks & SONY_LED_SUPPORT) {
                ret = sony_leds_init(hdev);
                if (ret < 0)
                        goto err_stop;
        }

        if (sc->quirks & SONY_BATTERY_SUPPORT) {
                ret = sony_battery_probe(sc);
                if (ret < 0)
                        goto err_stop;

                /* Open the device to receive reports with battery info */
                ret = hid_hw_open(hdev);
                if (ret < 0) {
                        hid_err(hdev, "hw open failed\n");
                        goto err_stop;
                }
        }

        if (sc->quirks & SONY_FF_SUPPORT) {
                ret = sony_init_ff(hdev);
                if (ret < 0)
                        goto err_close;
        }

        return 0;
err_close:
        hid_hw_close(hdev);
err_stop:
        if (sc->quirks & SONY_LED_SUPPORT)
                sony_leds_remove(hdev);
        if (sc->quirks & SONY_BATTERY_SUPPORT)
                sony_battery_remove(sc);
        if (sc->worker_initialized)
                cancel_work_sync(&sc->state_worker);
        sony_remove_dev_list(sc);
        hid_hw_stop(hdev);
        return ret;
}

static void sony_remove(struct hid_device *hdev)
{
        struct sony_sc *sc = hid_get_drvdata(hdev);

        if (sc->quirks & SONY_LED_SUPPORT)
                sony_leds_remove(hdev);

        if (sc->quirks & SONY_BATTERY_SUPPORT) {
                hid_hw_close(hdev);
                sony_battery_remove(sc);
        }

        if (sc->worker_initialized)
                cancel_work_sync(&sc->state_worker);

        sony_remove_dev_list(sc);

        hid_hw_stop(hdev);
}

static const struct hid_device_id sony_devices[] = {
        { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER),
                .driver_data = SIXAXIS_CONTROLLER_USB },
        { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_NAVIGATION_CONTROLLER),
                .driver_data = SIXAXIS_CONTROLLER_USB },
        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER),
                .driver_data = SIXAXIS_CONTROLLER_BT },
        { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE),
                .driver_data = VAIO_RDESC_CONSTANT },
        { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGP_MOUSE),
                .driver_data = VAIO_RDESC_CONSTANT },
        /* Wired Buzz Controller. Reported as Sony Hub from its USB ID and as
         * Logitech joystick from the device descriptor. */
        { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_BUZZ_CONTROLLER),
                .driver_data = BUZZ_CONTROLLER },
        { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_WIRELESS_BUZZ_CONTROLLER),
                .driver_data = BUZZ_CONTROLLER },
        /* PS3 BD Remote Control */
        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_BDREMOTE),
                .driver_data = PS3REMOTE },
        /* Logitech Harmony Adapter for PS3 */
        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_HARMONY_PS3),
                .driver_data = PS3REMOTE },
        /* Sony Dualshock 4 controllers for PS4 */
        { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER),
                .driver_data = DUALSHOCK4_CONTROLLER_USB },
        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER),
                .driver_data = DUALSHOCK4_CONTROLLER_BT },
        { }
};
MODULE_DEVICE_TABLE(hid, sony_devices);

static struct hid_driver sony_driver = {
        .name          = "sony",
        .id_table      = sony_devices,
        .input_mapping = sony_mapping,
        .probe         = sony_probe,
        .remove        = sony_remove,
        .report_fixup  = sony_report_fixup,
        .raw_event     = sony_raw_event
};
module_hid_driver(sony_driver);

MODULE_LICENSE("GPL");