drivers/hid/hid-sony.c - kernel/msm-4.9 - Gitiles

 /*
  *  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/usb.h>
 #include <linux/leds.h>

 #include "hid-ids.h"

 #define VAIO_RDESC_CONSTANT     (1 << 0)
 #define SIXAXIS_CONTROLLER_USB  (1 << 1)
 #define SIXAXIS_CONTROLLER_BT   (1 << 2)
 #define BUZZ_CONTROLLER         (1 << 3)
 #define PS3REMOTE		(1 << 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,
 };

 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,
 };

 struct sony_sc {
 	unsigned long quirks;

 	void *extra;
 };

 struct buzz_extra {
 	int led_state;
 	struct led_classdev *leds[4];
 };

 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 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 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_USB | SIXAXIS_CONTROLLER_BT)) &&
 			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]);
 	}

 	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);

 	return -1;
 }

 /*
  * The Sony Sixaxis does not handle HID Output Reports on the Interrupt EP
  * like it should according to usbhid/hid-core.c::usbhid_output_raw_report()
  * so we need to override that forcing HID Output Reports 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!
  */
 static int sixaxis_usb_output_raw_report(struct hid_device *hid, __u8 *buf,
 		size_t count, unsigned char report_type)
 {
 	struct usb_interface *intf = to_usb_interface(hid->dev.parent);
 	struct usb_device *dev = interface_to_usbdev(intf);
 	struct usb_host_interface *interface = intf->cur_altsetting;
 	int report_id = buf[0];
 	int ret;

 	if (report_type == HID_OUTPUT_REPORT) {
 		/* Don't send the Report ID */
 		buf++;
 		count--;
 	}

 	ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
 		HID_REQ_SET_REPORT,
 		USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
 		((report_type + 1) << 8) | report_id,
 		interface->desc.bInterfaceNumber, buf, count,
 		USB_CTRL_SET_TIMEOUT);

 	/* Count also the Report ID, in case of an Output report. */
 	if (ret > 0 && report_type == HID_OUTPUT_REPORT)
 		ret++;

 	return ret;
 }

 /*
  * 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)
 {
 	struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
 	struct usb_device *dev = interface_to_usbdev(intf);
 	__u16 ifnum = intf->cur_altsetting->desc.bInterfaceNumber;
 	int ret;
 	char *buf = kmalloc(18, GFP_KERNEL);

 	if (!buf)
 		return -ENOMEM;

 	ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
 				 HID_REQ_GET_REPORT,
 				 USB_DIR_IN | USB_TYPE_CLASS |
 				 USB_RECIP_INTERFACE,
 				 (3 << 8) | 0xf2, ifnum, buf, 17,
 				 USB_CTRL_GET_TIMEOUT);
 	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 hdev->hid_output_raw_report(hdev, buf, sizeof(buf), HID_FEATURE_REPORT);
 }

 static void buzz_set_leds(struct hid_device *hdev, int 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 & 1) ? 0xff : 0x00;
 	value[2] = (leds & 2) ? 0xff : 0x00;
 	value[3] = (leds & 4) ? 0xff : 0x00;
 	value[4] = (leds & 8) ? 0xff : 0x00;
 	value[5] = 0x00;
 	value[6] = 0x00;
 	hid_hw_request(hdev, report, HID_REQ_SET_REPORT);
 }

 static void buzz_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;
 	struct buzz_extra *buzz;

 	int n;

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

 	for (n = 0; n < 4; n++) {
 		if (led == buzz->leds[n]) {
 			int on = !! (buzz->led_state & (1 << n));
 			if (value == LED_OFF && on) {
 				buzz->led_state &= ~(1 << n);
 				buzz_set_leds(hdev, buzz->led_state);
 			} else if (value != LED_OFF && !on) {
 				buzz->led_state |= (1 << n);
 				buzz_set_leds(hdev, buzz->led_state);
 			}
 			break;
 		}
 	}
 }

 static enum led_brightness buzz_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;
 	struct buzz_extra *buzz;

 	int n;
 	int on = 0;

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

 	for (n = 0; n < 4; n++) {
 		if (led == buzz->leds[n]) {
 			on = !! (buzz->led_state & (1 << n));
 			break;
 		}
 	}

 	return on ? LED_FULL : LED_OFF;
 }

 static int buzz_init(struct hid_device *hdev)
 {
 	struct sony_sc *drv_data;
 	struct buzz_extra *buzz;
 	int n, ret = 0;
 	struct led_classdev *led;
 	size_t name_sz;
 	char *name;

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

 	buzz = kzalloc(sizeof(*buzz), GFP_KERNEL);
 	if (!buzz) {
 		hid_err(hdev, "Insufficient memory, cannot allocate driver data\n");
 		return -ENOMEM;
 	}
 	drv_data->extra = buzz;

 	/* 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 */
 	buzz_set_leds(hdev, 0x00);

 	name_sz = strlen(dev_name(&hdev->dev)) + strlen("::buzz#") + 1;

 	for (n = 0; n < 4; n++) {
 		led = kzalloc(sizeof(struct led_classdev) + name_sz, GFP_KERNEL);
 		if (!led) {
 			hid_err(hdev, "Couldn't allocate memory for LED %d\n", n);
 			goto error_leds;
 		}

 		name = (void *)(&led[1]);
 		snprintf(name, name_sz, "%s::buzz%d", dev_name(&hdev->dev), n + 1);
 		led->name = name;
 		led->brightness = 0;
 		led->max_brightness = 1;
 		led->brightness_get = buzz_led_get_brightness;
 		led->brightness_set = buzz_led_set_brightness;

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

 		buzz->leds[n] = led;
 	}

 	return ret;

 error_leds:
 	for (n = 0; n < 4; n++) {
 		led = buzz->leds[n];
 		buzz->leds[n] = NULL;
 		if (!led)
 			continue;
 		led_classdev_unregister(led);
 		kfree(led);
 	}

 	kfree(drv_data->extra);
 	drv_data->extra = NULL;
 	return ret;
 }

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

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

 	buzz = drv_data->extra;

 	for (n = 0; n < 4; n++) {
 		led = buzz->leds[n];
 		buzz->leds[n] = NULL;
 		if (!led)
 			continue;
 		led_classdev_unregister(led);
 		kfree(led);
 	}

 	kfree(drv_data->extra);
 	drv_data->extra = NULL;
 }

 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 = kzalloc(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);

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

 	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");
 		goto err_free;
 	}

 	if (sc->quirks & SIXAXIS_CONTROLLER_USB) {
 		hdev->hid_output_raw_report = sixaxis_usb_output_raw_report;
 		ret = sixaxis_set_operational_usb(hdev);
 	}
 	else if (sc->quirks & SIXAXIS_CONTROLLER_BT)
 		ret = sixaxis_set_operational_bt(hdev);
 	else if (sc->quirks & BUZZ_CONTROLLER)
 		ret = buzz_init(hdev);
 	else
 		ret = 0;

 	if (ret < 0)
 		goto err_stop;

 	return 0;
 err_stop:
 	hid_hw_stop(hdev);
 err_free:
 	kfree(sc);
 	return ret;
 }

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

 	if (sc->quirks & BUZZ_CONTROLLER)
 		buzz_remove(hdev);

 	hid_hw_stop(hdev);
 	kfree(sc);
 }

 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 },
 	{ }
 };
 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");
	/*
	* 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/usb.h>
	#include <linux/leds.h>

	#include "hid-ids.h"

	#define VAIO_RDESC_CONSTANT (1 << 0)
	#define SIXAXIS_CONTROLLER_USB (1 << 1)
	#define SIXAXIS_CONTROLLER_BT (1 << 2)
	#define BUZZ_CONTROLLER (1 << 3)
	#define PS3REMOTE (1 << 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,
	};

	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,
	};

	struct sony_sc {
	unsigned long quirks;

	void *extra;
	};

	struct buzz_extra {
	int led_state;
	struct led_classdev *leds[4];
	};

	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 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 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_USB \| SIXAXIS_CONTROLLER_BT)) &&
	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]);
	}

	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);

	return -1;
	}

	/*
	* The Sony Sixaxis does not handle HID Output Reports on the Interrupt EP
	* like it should according to usbhid/hid-core.c::usbhid_output_raw_report()
	* so we need to override that forcing HID Output Reports 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!
	*/
	static int sixaxis_usb_output_raw_report(struct hid_device hid, __u8 buf,
	size_t count, unsigned char report_type)
	{
	struct usb_interface *intf = to_usb_interface(hid->dev.parent);
	struct usb_device *dev = interface_to_usbdev(intf);
	struct usb_host_interface *interface = intf->cur_altsetting;
	int report_id = buf[0];
	int ret;

	if (report_type == HID_OUTPUT_REPORT) {
	/* Don't send the Report ID */
	buf++;
	count--;
	}

	ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
	HID_REQ_SET_REPORT,
	USB_DIR_OUT \| USB_TYPE_CLASS \| USB_RECIP_INTERFACE,
	((report_type + 1) << 8) \| report_id,
	interface->desc.bInterfaceNumber, buf, count,
	USB_CTRL_SET_TIMEOUT);

	/* Count also the Report ID, in case of an Output report. */
	if (ret > 0 && report_type == HID_OUTPUT_REPORT)
	ret++;

	return ret;
	}

	/*
	* 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)
	{
	struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
	struct usb_device *dev = interface_to_usbdev(intf);
	__u16 ifnum = intf->cur_altsetting->desc.bInterfaceNumber;
	int ret;
	char *buf = kmalloc(18, GFP_KERNEL);

	if (!buf)
	return -ENOMEM;

	ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
	HID_REQ_GET_REPORT,
	USB_DIR_IN \| USB_TYPE_CLASS \|
	USB_RECIP_INTERFACE,
	(3 << 8) \| 0xf2, ifnum, buf, 17,
	USB_CTRL_GET_TIMEOUT);
	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 hdev->hid_output_raw_report(hdev, buf, sizeof(buf), HID_FEATURE_REPORT);
	}

	static void buzz_set_leds(struct hid_device *hdev, int 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 & 1) ? 0xff : 0x00;
	value[2] = (leds & 2) ? 0xff : 0x00;
	value[3] = (leds & 4) ? 0xff : 0x00;
	value[4] = (leds & 8) ? 0xff : 0x00;
	value[5] = 0x00;
	value[6] = 0x00;
	hid_hw_request(hdev, report, HID_REQ_SET_REPORT);
	}

	static void buzz_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;
	struct buzz_extra *buzz;

	int n;

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

	for (n = 0; n < 4; n++) {
	if (led == buzz->leds[n]) {
	int on = !! (buzz->led_state & (1 << n));
	if (value == LED_OFF && on) {
	buzz->led_state &= ~(1 << n);
	buzz_set_leds(hdev, buzz->led_state);
	} else if (value != LED_OFF && !on) {
	buzz->led_state \|= (1 << n);
	buzz_set_leds(hdev, buzz->led_state);
	}
	break;
	}
	}
	}

	static enum led_brightness buzz_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;
	struct buzz_extra *buzz;

	int n;
	int on = 0;

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

	for (n = 0; n < 4; n++) {
	if (led == buzz->leds[n]) {
	on = !! (buzz->led_state & (1 << n));
	break;
	}
	}

	return on ? LED_FULL : LED_OFF;
	}

	static int buzz_init(struct hid_device *hdev)
	{
	struct sony_sc *drv_data;
	struct buzz_extra *buzz;
	int n, ret = 0;
	struct led_classdev *led;
	size_t name_sz;
	char *name;

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

	buzz = kzalloc(sizeof(*buzz), GFP_KERNEL);
	if (!buzz) {
	hid_err(hdev, "Insufficient memory, cannot allocate driver data\n");
	return -ENOMEM;
	}
	drv_data->extra = buzz;

	/* 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 */
	buzz_set_leds(hdev, 0x00);

	name_sz = strlen(dev_name(&hdev->dev)) + strlen("::buzz#") + 1;

	for (n = 0; n < 4; n++) {
	led = kzalloc(sizeof(struct led_classdev) + name_sz, GFP_KERNEL);
	if (!led) {
	hid_err(hdev, "Couldn't allocate memory for LED %d\n", n);
	goto error_leds;
	}

	name = (void *)(&led[1]);
	snprintf(name, name_sz, "%s::buzz%d", dev_name(&hdev->dev), n + 1);
	led->name = name;
	led->brightness = 0;
	led->max_brightness = 1;
	led->brightness_get = buzz_led_get_brightness;
	led->brightness_set = buzz_led_set_brightness;

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

	buzz->leds[n] = led;
	}

	return ret;

	error_leds:
	for (n = 0; n < 4; n++) {
	led = buzz->leds[n];
	buzz->leds[n] = NULL;
	if (!led)
	continue;
	led_classdev_unregister(led);
	kfree(led);
	}

	kfree(drv_data->extra);
	drv_data->extra = NULL;
	return ret;
	}

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

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

	buzz = drv_data->extra;

	for (n = 0; n < 4; n++) {
	led = buzz->leds[n];
	buzz->leds[n] = NULL;
	if (!led)
	continue;
	led_classdev_unregister(led);
	kfree(led);
	}

	kfree(drv_data->extra);
	drv_data->extra = NULL;
	}

	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 = kzalloc(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);

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

	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");
	goto err_free;
	}

	if (sc->quirks & SIXAXIS_CONTROLLER_USB) {
	hdev->hid_output_raw_report = sixaxis_usb_output_raw_report;
	ret = sixaxis_set_operational_usb(hdev);
	}
	else if (sc->quirks & SIXAXIS_CONTROLLER_BT)
	ret = sixaxis_set_operational_bt(hdev);
	else if (sc->quirks & BUZZ_CONTROLLER)
	ret = buzz_init(hdev);
	else
	ret = 0;

	if (ret < 0)
	goto err_stop;

	return 0;
	err_stop:
	hid_hw_stop(hdev);
	err_free:
	kfree(sc);
	return ret;
	}

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

	if (sc->quirks & BUZZ_CONTROLLER)
	buzz_remove(hdev);

	hid_hw_stop(hdev);
	kfree(sc);
	}

	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 },
	{ }
	};
	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");