/*
   * Sony Programmable I/O Control Device driver for VAIO
   *

   * Copyright (C) 2007 Mattia Dongili <malattia@linux.it>
   *

   * Copyright (C) 2001-2005 Stelian Pop <stelian@popies.net>
   *
   * Copyright (C) 2005 Narayanan R S <nars@kadamba.org>
   *

   * Copyright (C) 2001-2002 Alcôve <www.alcove.com>

   *
   * Copyright (C) 2001 Michael Ashley <m.ashley@unsw.edu.au>
   *
   * Copyright (C) 2001 Junichi Morita <jun1m@mars.dti.ne.jp>
   *
   * Copyright (C) 2000 Takaya Kinjo <t-kinjo@tc4.so-net.ne.jp>
   *
   * Copyright (C) 2000 Andrew Tridgell <tridge@valinux.com>
   *
   * Earlier work by Werner Almesberger, Paul `Rusty' Russell and Paul Mackerras.
   *
   * 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.
   *
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Public License for more details.
   *
   * You should have received a copy of the GNU General Public License
   * along with this program; if not, write to the Free Software
   * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
   *
   */

  #include <linux/module.h>

  #include <linux/sched.h>

  #include <linux/input.h>
  #include <linux/pci.h>

  #include <linux/init.h>
  #include <linux/interrupt.h>
  #include <linux/miscdevice.h>
  #include <linux/poll.h>
  #include <linux/delay.h>
  #include <linux/wait.h>
  #include <linux/acpi.h>
  #include <linux/dmi.h>
  #include <linux/err.h>
  #include <linux/kfifo.h>

  #include <linux/platform_device.h>

  #include <linux/gfp.h>

  
  #include <asm/uaccess.h>
  #include <asm/io.h>

  
  #include <linux/sonypi.h>
  
  #define SONYPI_DRIVER_VERSION	 "1.26"
  
  MODULE_AUTHOR("Stelian Pop <stelian@popies.net>");
  MODULE_DESCRIPTION("Sony Programmable I/O Control Device driver");
  MODULE_LICENSE("GPL");
  MODULE_VERSION(SONYPI_DRIVER_VERSION);
  
  static int minor = -1;
  module_param(minor, int, 0);
  MODULE_PARM_DESC(minor,
  		 "minor number of the misc device, default is -1 (automatic)");
  
  static int verbose;		/* = 0 */
  module_param(verbose, int, 0644);
  MODULE_PARM_DESC(verbose, "be verbose, default is 0 (no)");
  
  static int fnkeyinit;		/* = 0 */
  module_param(fnkeyinit, int, 0444);
  MODULE_PARM_DESC(fnkeyinit,
  		 "set this if your Fn keys do not generate any event");
  
  static int camera;		/* = 0 */
  module_param(camera, int, 0444);
  MODULE_PARM_DESC(camera,
  		 "set this if you have a MotionEye camera (PictureBook series)");
  
  static int compat;		/* = 0 */
  module_param(compat, int, 0444);
  MODULE_PARM_DESC(compat,
  		 "set this if you want to enable backward compatibility mode");
  
  static unsigned long mask = 0xffffffff;
  module_param(mask, ulong, 0644);
  MODULE_PARM_DESC(mask,
  		 "set this to the mask of event you want to enable (see doc)");
  
  static int useinput = 1;
  module_param(useinput, int, 0444);
  MODULE_PARM_DESC(useinput,
  		 "set this if you would like sonypi to feed events to the input subsystem");

  static int check_ioport = 1;
  module_param(check_ioport, int, 0444);
  MODULE_PARM_DESC(check_ioport,
  		 "set this to 0 if you think the automatic ioport check for sony-laptop is wrong");

  #define SONYPI_DEVICE_MODEL_TYPE1	1
  #define SONYPI_DEVICE_MODEL_TYPE2	2

  #define SONYPI_DEVICE_MODEL_TYPE3	3

  
  /* type1 models use those */
  #define SONYPI_IRQ_PORT			0x8034
  #define SONYPI_IRQ_SHIFT		22

  #define SONYPI_TYPE1_BASE		0x50
  #define SONYPI_G10A			(SONYPI_TYPE1_BASE+0x14)

  #define SONYPI_TYPE1_REGION_SIZE	0x08
  #define SONYPI_TYPE1_EVTYPE_OFFSET	0x04
  
  /* type2 series specifics */
  #define SONYPI_SIRQ			0x9b
  #define SONYPI_SLOB			0x9c
  #define SONYPI_SHIB			0x9d
  #define SONYPI_TYPE2_REGION_SIZE	0x20
  #define SONYPI_TYPE2_EVTYPE_OFFSET	0x12

  /* type3 series specifics */
  #define SONYPI_TYPE3_BASE		0x40
  #define SONYPI_TYPE3_GID2		(SONYPI_TYPE3_BASE+0x48) /* 16 bits */
  #define SONYPI_TYPE3_MISC		(SONYPI_TYPE3_BASE+0x6d) /* 8 bits  */
  #define SONYPI_TYPE3_REGION_SIZE	0x20
  #define SONYPI_TYPE3_EVTYPE_OFFSET	0x12

  /* battery / brightness addresses */
  #define SONYPI_BAT_FLAGS	0x81
  #define SONYPI_LCD_LIGHT	0x96
  #define SONYPI_BAT1_PCTRM	0xa0
  #define SONYPI_BAT1_LEFT	0xa2
  #define SONYPI_BAT1_MAXRT	0xa4
  #define SONYPI_BAT2_PCTRM	0xa8
  #define SONYPI_BAT2_LEFT	0xaa
  #define SONYPI_BAT2_MAXRT	0xac
  #define SONYPI_BAT1_MAXTK	0xb0
  #define SONYPI_BAT1_FULL	0xb2
  #define SONYPI_BAT2_MAXTK	0xb8
  #define SONYPI_BAT2_FULL	0xba
  
  /* FAN0 information (reverse engineered from ACPI tables) */
  #define SONYPI_FAN0_STATUS	0x93
  #define SONYPI_TEMP_STATUS	0xC1
  
  /* ioports used for brightness and type2 events */
  #define SONYPI_DATA_IOPORT	0x62
  #define SONYPI_CST_IOPORT	0x66
  
  /* The set of possible ioports */
  struct sonypi_ioport_list {
  	u16	port1;
  	u16	port2;
  };
  
  static struct sonypi_ioport_list sonypi_type1_ioport_list[] = {
  	{ 0x10c0, 0x10c4 },	/* looks like the default on C1Vx */
  	{ 0x1080, 0x1084 },
  	{ 0x1090, 0x1094 },
  	{ 0x10a0, 0x10a4 },
  	{ 0x10b0, 0x10b4 },
  	{ 0x0, 0x0 }
  };
  
  static struct sonypi_ioport_list sonypi_type2_ioport_list[] = {
  	{ 0x1080, 0x1084 },
  	{ 0x10a0, 0x10a4 },
  	{ 0x10c0, 0x10c4 },
  	{ 0x10e0, 0x10e4 },
  	{ 0x0, 0x0 }
  };

  /* same as in type 2 models */
  static struct sonypi_ioport_list *sonypi_type3_ioport_list =
  	sonypi_type2_ioport_list;

  /* The set of possible interrupts */
  struct sonypi_irq_list {
  	u16	irq;
  	u16	bits;
  };
  
  static struct sonypi_irq_list sonypi_type1_irq_list[] = {
  	{ 11, 0x2 },	/* IRQ 11, GO22=0,GO23=1 in AML */
  	{ 10, 0x1 },	/* IRQ 10, GO22=1,GO23=0 in AML */
  	{  5, 0x0 },	/* IRQ  5, GO22=0,GO23=0 in AML */
  	{  0, 0x3 }	/* no IRQ, GO22=1,GO23=1 in AML */
  };
  
  static struct sonypi_irq_list sonypi_type2_irq_list[] = {
  	{ 11, 0x80 },	/* IRQ 11, 0x80 in SIRQ in AML */
  	{ 10, 0x40 },	/* IRQ 10, 0x40 in SIRQ in AML */
  	{  9, 0x20 },	/* IRQ  9, 0x20 in SIRQ in AML */
  	{  6, 0x10 },	/* IRQ  6, 0x10 in SIRQ in AML */
  	{  0, 0x00 }	/* no IRQ, 0x00 in SIRQ in AML */
  };

  /* same as in type2 models */
  static struct sonypi_irq_list *sonypi_type3_irq_list = sonypi_type2_irq_list;

  #define SONYPI_CAMERA_BRIGHTNESS		0
  #define SONYPI_CAMERA_CONTRAST			1
  #define SONYPI_CAMERA_HUE			2
  #define SONYPI_CAMERA_COLOR			3
  #define SONYPI_CAMERA_SHARPNESS			4
  
  #define SONYPI_CAMERA_PICTURE			5
  #define SONYPI_CAMERA_EXPOSURE_MASK		0xC
  #define SONYPI_CAMERA_WHITE_BALANCE_MASK	0x3
  #define SONYPI_CAMERA_PICTURE_MODE_MASK		0x30
  #define SONYPI_CAMERA_MUTE_MASK			0x40
  
  /* the rest don't need a loop until not 0xff */
  #define SONYPI_CAMERA_AGC			6
  #define SONYPI_CAMERA_AGC_MASK			0x30
  #define SONYPI_CAMERA_SHUTTER_MASK 		0x7
  
  #define SONYPI_CAMERA_SHUTDOWN_REQUEST		7
  #define SONYPI_CAMERA_CONTROL			0x10
  
  #define SONYPI_CAMERA_STATUS 			7
  #define SONYPI_CAMERA_STATUS_READY 		0x2
  #define SONYPI_CAMERA_STATUS_POSITION		0x4
  
  #define SONYPI_DIRECTION_BACKWARDS 		0x4
  
  #define SONYPI_CAMERA_REVISION 			8
  #define SONYPI_CAMERA_ROMVERSION 		9
  
  /* Event masks */
  #define SONYPI_JOGGER_MASK			0x00000001
  #define SONYPI_CAPTURE_MASK			0x00000002
  #define SONYPI_FNKEY_MASK			0x00000004
  #define SONYPI_BLUETOOTH_MASK			0x00000008
  #define SONYPI_PKEY_MASK			0x00000010
  #define SONYPI_BACK_MASK			0x00000020
  #define SONYPI_HELP_MASK			0x00000040
  #define SONYPI_LID_MASK				0x00000080
  #define SONYPI_ZOOM_MASK			0x00000100
  #define SONYPI_THUMBPHRASE_MASK			0x00000200
  #define SONYPI_MEYE_MASK			0x00000400
  #define SONYPI_MEMORYSTICK_MASK			0x00000800
  #define SONYPI_BATTERY_MASK			0x00001000

  #define SONYPI_WIRELESS_MASK			0x00002000

  
  struct sonypi_event {
  	u8	data;
  	u8	event;
  };
  
  /* The set of possible button release events */
  static struct sonypi_event sonypi_releaseev[] = {
  	{ 0x00, SONYPI_EVENT_ANYBUTTON_RELEASED },
  	{ 0, 0 }
  };
  
  /* The set of possible jogger events  */
  static struct sonypi_event sonypi_joggerev[] = {
  	{ 0x1f, SONYPI_EVENT_JOGDIAL_UP },
  	{ 0x01, SONYPI_EVENT_JOGDIAL_DOWN },
  	{ 0x5f, SONYPI_EVENT_JOGDIAL_UP_PRESSED },
  	{ 0x41, SONYPI_EVENT_JOGDIAL_DOWN_PRESSED },
  	{ 0x1e, SONYPI_EVENT_JOGDIAL_FAST_UP },
  	{ 0x02, SONYPI_EVENT_JOGDIAL_FAST_DOWN },
  	{ 0x5e, SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED },
  	{ 0x42, SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED },
  	{ 0x1d, SONYPI_EVENT_JOGDIAL_VFAST_UP },
  	{ 0x03, SONYPI_EVENT_JOGDIAL_VFAST_DOWN },
  	{ 0x5d, SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED },
  	{ 0x43, SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED },
  	{ 0x40, SONYPI_EVENT_JOGDIAL_PRESSED },
  	{ 0, 0 }
  };
  
  /* The set of possible capture button events */
  static struct sonypi_event sonypi_captureev[] = {
  	{ 0x05, SONYPI_EVENT_CAPTURE_PARTIALPRESSED },
  	{ 0x07, SONYPI_EVENT_CAPTURE_PRESSED },
  	{ 0x01, SONYPI_EVENT_CAPTURE_PARTIALRELEASED },
  	{ 0, 0 }
  };
  
  /* The set of possible fnkeys events */
  static struct sonypi_event sonypi_fnkeyev[] = {
  	{ 0x10, SONYPI_EVENT_FNKEY_ESC },
  	{ 0x11, SONYPI_EVENT_FNKEY_F1 },
  	{ 0x12, SONYPI_EVENT_FNKEY_F2 },
  	{ 0x13, SONYPI_EVENT_FNKEY_F3 },
  	{ 0x14, SONYPI_EVENT_FNKEY_F4 },
  	{ 0x15, SONYPI_EVENT_FNKEY_F5 },
  	{ 0x16, SONYPI_EVENT_FNKEY_F6 },
  	{ 0x17, SONYPI_EVENT_FNKEY_F7 },
  	{ 0x18, SONYPI_EVENT_FNKEY_F8 },
  	{ 0x19, SONYPI_EVENT_FNKEY_F9 },
  	{ 0x1a, SONYPI_EVENT_FNKEY_F10 },
  	{ 0x1b, SONYPI_EVENT_FNKEY_F11 },
  	{ 0x1c, SONYPI_EVENT_FNKEY_F12 },
  	{ 0x1f, SONYPI_EVENT_FNKEY_RELEASED },
  	{ 0x21, SONYPI_EVENT_FNKEY_1 },
  	{ 0x22, SONYPI_EVENT_FNKEY_2 },
  	{ 0x31, SONYPI_EVENT_FNKEY_D },
  	{ 0x32, SONYPI_EVENT_FNKEY_E },
  	{ 0x33, SONYPI_EVENT_FNKEY_F },
  	{ 0x34, SONYPI_EVENT_FNKEY_S },
  	{ 0x35, SONYPI_EVENT_FNKEY_B },
  	{ 0x36, SONYPI_EVENT_FNKEY_ONLY },
  	{ 0, 0 }
  };
  
  /* The set of possible program key events */
  static struct sonypi_event sonypi_pkeyev[] = {
  	{ 0x01, SONYPI_EVENT_PKEY_P1 },
  	{ 0x02, SONYPI_EVENT_PKEY_P2 },
  	{ 0x04, SONYPI_EVENT_PKEY_P3 },
  	{ 0x5c, SONYPI_EVENT_PKEY_P1 },
  	{ 0, 0 }
  };
  
  /* The set of possible bluetooth events */
  static struct sonypi_event sonypi_blueev[] = {
  	{ 0x55, SONYPI_EVENT_BLUETOOTH_PRESSED },
  	{ 0x59, SONYPI_EVENT_BLUETOOTH_ON },
  	{ 0x5a, SONYPI_EVENT_BLUETOOTH_OFF },
  	{ 0, 0 }
  };

  /* The set of possible wireless events */
  static struct sonypi_event sonypi_wlessev[] = {
  	{ 0x59, SONYPI_EVENT_WIRELESS_ON },
  	{ 0x5a, SONYPI_EVENT_WIRELESS_OFF },
  	{ 0, 0 }
  };

  /* The set of possible back button events */
  static struct sonypi_event sonypi_backev[] = {
  	{ 0x20, SONYPI_EVENT_BACK_PRESSED },
  	{ 0, 0 }
  };
  
  /* The set of possible help button events */
  static struct sonypi_event sonypi_helpev[] = {
  	{ 0x3b, SONYPI_EVENT_HELP_PRESSED },
  	{ 0, 0 }
  };
  
  
  /* The set of possible lid events */
  static struct sonypi_event sonypi_lidev[] = {
  	{ 0x51, SONYPI_EVENT_LID_CLOSED },
  	{ 0x50, SONYPI_EVENT_LID_OPENED },
  	{ 0, 0 }
  };
  
  /* The set of possible zoom events */
  static struct sonypi_event sonypi_zoomev[] = {
  	{ 0x39, SONYPI_EVENT_ZOOM_PRESSED },
  	{ 0, 0 }
  };
  
  /* The set of possible thumbphrase events */
  static struct sonypi_event sonypi_thumbphraseev[] = {
  	{ 0x3a, SONYPI_EVENT_THUMBPHRASE_PRESSED },
  	{ 0, 0 }
  };
  
  /* The set of possible motioneye camera events */
  static struct sonypi_event sonypi_meyeev[] = {
  	{ 0x00, SONYPI_EVENT_MEYE_FACE },
  	{ 0x01, SONYPI_EVENT_MEYE_OPPOSITE },
  	{ 0, 0 }
  };
  
  /* The set of possible memorystick events */
  static struct sonypi_event sonypi_memorystickev[] = {
  	{ 0x53, SONYPI_EVENT_MEMORYSTICK_INSERT },
  	{ 0x54, SONYPI_EVENT_MEMORYSTICK_EJECT },
  	{ 0, 0 }
  };
  
  /* The set of possible battery events */
  static struct sonypi_event sonypi_batteryev[] = {
  	{ 0x20, SONYPI_EVENT_BATTERY_INSERT },
  	{ 0x30, SONYPI_EVENT_BATTERY_REMOVE },
  	{ 0, 0 }
  };
  
  static struct sonypi_eventtypes {
  	int			model;
  	u8			data;
  	unsigned long		mask;
  	struct sonypi_event *	events;
  } sonypi_eventtypes[] = {
  	{ SONYPI_DEVICE_MODEL_TYPE1, 0, 0xffffffff, sonypi_releaseev },
  	{ SONYPI_DEVICE_MODEL_TYPE1, 0x70, SONYPI_MEYE_MASK, sonypi_meyeev },
  	{ SONYPI_DEVICE_MODEL_TYPE1, 0x30, SONYPI_LID_MASK, sonypi_lidev },
  	{ SONYPI_DEVICE_MODEL_TYPE1, 0x60, SONYPI_CAPTURE_MASK, sonypi_captureev },
  	{ SONYPI_DEVICE_MODEL_TYPE1, 0x10, SONYPI_JOGGER_MASK, sonypi_joggerev },
  	{ SONYPI_DEVICE_MODEL_TYPE1, 0x20, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
  	{ SONYPI_DEVICE_MODEL_TYPE1, 0x30, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
  	{ SONYPI_DEVICE_MODEL_TYPE1, 0x40, SONYPI_PKEY_MASK, sonypi_pkeyev },
  	{ SONYPI_DEVICE_MODEL_TYPE1, 0x30, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
  	{ SONYPI_DEVICE_MODEL_TYPE1, 0x40, SONYPI_BATTERY_MASK, sonypi_batteryev },
  
  	{ SONYPI_DEVICE_MODEL_TYPE2, 0, 0xffffffff, sonypi_releaseev },
  	{ SONYPI_DEVICE_MODEL_TYPE2, 0x38, SONYPI_LID_MASK, sonypi_lidev },
  	{ SONYPI_DEVICE_MODEL_TYPE2, 0x11, SONYPI_JOGGER_MASK, sonypi_joggerev },
  	{ SONYPI_DEVICE_MODEL_TYPE2, 0x61, SONYPI_CAPTURE_MASK, sonypi_captureev },
  	{ SONYPI_DEVICE_MODEL_TYPE2, 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
  	{ SONYPI_DEVICE_MODEL_TYPE2, 0x31, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
  	{ SONYPI_DEVICE_MODEL_TYPE2, 0x08, SONYPI_PKEY_MASK, sonypi_pkeyev },
  	{ SONYPI_DEVICE_MODEL_TYPE2, 0x11, SONYPI_BACK_MASK, sonypi_backev },

  	{ SONYPI_DEVICE_MODEL_TYPE2, 0x21, SONYPI_HELP_MASK, sonypi_helpev },
  	{ SONYPI_DEVICE_MODEL_TYPE2, 0x21, SONYPI_ZOOM_MASK, sonypi_zoomev },
  	{ SONYPI_DEVICE_MODEL_TYPE2, 0x20, SONYPI_THUMBPHRASE_MASK, sonypi_thumbphraseev },
  	{ SONYPI_DEVICE_MODEL_TYPE2, 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
  	{ SONYPI_DEVICE_MODEL_TYPE2, 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
  	{ SONYPI_DEVICE_MODEL_TYPE2, 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },

  	{ SONYPI_DEVICE_MODEL_TYPE3, 0, 0xffffffff, sonypi_releaseev },
  	{ SONYPI_DEVICE_MODEL_TYPE3, 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
  	{ SONYPI_DEVICE_MODEL_TYPE3, 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
  	{ SONYPI_DEVICE_MODEL_TYPE3, 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
  	{ SONYPI_DEVICE_MODEL_TYPE3, 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
  	{ SONYPI_DEVICE_MODEL_TYPE3, 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },

  	{ 0 }
  };
  
  #define SONYPI_BUF_SIZE	128

  /* Correspondance table between sonypi events and input layer events */
  static struct {
  	int sonypiev;
  	int inputev;
  } sonypi_inputkeys[] = {
  	{ SONYPI_EVENT_CAPTURE_PRESSED,	 	KEY_CAMERA },
  	{ SONYPI_EVENT_FNKEY_ONLY, 		KEY_FN },
  	{ SONYPI_EVENT_FNKEY_ESC, 		KEY_FN_ESC },
  	{ SONYPI_EVENT_FNKEY_F1, 		KEY_FN_F1 },
  	{ SONYPI_EVENT_FNKEY_F2, 		KEY_FN_F2 },
  	{ SONYPI_EVENT_FNKEY_F3, 		KEY_FN_F3 },
  	{ SONYPI_EVENT_FNKEY_F4, 		KEY_FN_F4 },
  	{ SONYPI_EVENT_FNKEY_F5, 		KEY_FN_F5 },
  	{ SONYPI_EVENT_FNKEY_F6, 		KEY_FN_F6 },
  	{ SONYPI_EVENT_FNKEY_F7, 		KEY_FN_F7 },
  	{ SONYPI_EVENT_FNKEY_F8, 		KEY_FN_F8 },
  	{ SONYPI_EVENT_FNKEY_F9,		KEY_FN_F9 },
  	{ SONYPI_EVENT_FNKEY_F10,		KEY_FN_F10 },
  	{ SONYPI_EVENT_FNKEY_F11, 		KEY_FN_F11 },
  	{ SONYPI_EVENT_FNKEY_F12,		KEY_FN_F12 },
  	{ SONYPI_EVENT_FNKEY_1, 		KEY_FN_1 },
  	{ SONYPI_EVENT_FNKEY_2, 		KEY_FN_2 },
  	{ SONYPI_EVENT_FNKEY_D,			KEY_FN_D },
  	{ SONYPI_EVENT_FNKEY_E,			KEY_FN_E },
  	{ SONYPI_EVENT_FNKEY_F,			KEY_FN_F },
  	{ SONYPI_EVENT_FNKEY_S,			KEY_FN_S },
  	{ SONYPI_EVENT_FNKEY_B,			KEY_FN_B },
  	{ SONYPI_EVENT_BLUETOOTH_PRESSED, 	KEY_BLUE },
  	{ SONYPI_EVENT_BLUETOOTH_ON, 		KEY_BLUE },
  	{ SONYPI_EVENT_PKEY_P1, 		KEY_PROG1 },
  	{ SONYPI_EVENT_PKEY_P2, 		KEY_PROG2 },
  	{ SONYPI_EVENT_PKEY_P3, 		KEY_PROG3 },
  	{ SONYPI_EVENT_BACK_PRESSED, 		KEY_BACK },
  	{ SONYPI_EVENT_HELP_PRESSED, 		KEY_HELP },
  	{ SONYPI_EVENT_ZOOM_PRESSED, 		KEY_ZOOM },
  	{ SONYPI_EVENT_THUMBPHRASE_PRESSED, 	BTN_THUMB },
  	{ 0, 0 },
  };

  struct sonypi_keypress {
  	struct input_dev *dev;
  	int key;
  };

  static struct sonypi_device {
  	struct pci_dev *dev;

  	u16 irq;
  	u16 bits;
  	u16 ioport1;
  	u16 ioport2;
  	u16 region_size;
  	u16 evtype_offset;
  	int camera_power;
  	int bluetooth_power;

  	struct mutex lock;

  	struct kfifo fifo;

  	spinlock_t fifo_lock;
  	wait_queue_head_t fifo_proc_list;
  	struct fasync_struct *fifo_async;
  	int open_count;
  	int model;

  	struct input_dev *input_jog_dev;
  	struct input_dev *input_key_dev;

  	struct work_struct input_work;

  	struct kfifo input_fifo;

  	spinlock_t input_fifo_lock;
  } sonypi_device;
  
  #define ITERATIONS_LONG		10000
  #define ITERATIONS_SHORT	10
  
  #define wait_on_command(quiet, command, iterations) { \
  	unsigned int n = iterations; \
  	while (--n && (command)) \
  		udelay(1); \
  	if (!n && (verbose || !quiet)) \

  		printk(KERN_WARNING "sonypi command failed at %s : %s (line %d)
  ", __FILE__, __func__, __LINE__); \

  }
  
  #ifdef CONFIG_ACPI
  #define SONYPI_ACPI_ACTIVE (!acpi_disabled)
  #else
  #define SONYPI_ACPI_ACTIVE 0
  #endif				/* CONFIG_ACPI */

  #ifdef CONFIG_ACPI
  static struct acpi_device *sonypi_acpi_device;

  static int acpi_driver_registered;

  #endif

  static int sonypi_ec_write(u8 addr, u8 value)
  {

  #ifdef CONFIG_ACPI

  	if (SONYPI_ACPI_ACTIVE)
  		return ec_write(addr, value);
  #endif
  	wait_on_command(1, inb_p(SONYPI_CST_IOPORT) & 3, ITERATIONS_LONG);
  	outb_p(0x81, SONYPI_CST_IOPORT);
  	wait_on_command(0, inb_p(SONYPI_CST_IOPORT) & 2, ITERATIONS_LONG);
  	outb_p(addr, SONYPI_DATA_IOPORT);
  	wait_on_command(0, inb_p(SONYPI_CST_IOPORT) & 2, ITERATIONS_LONG);
  	outb_p(value, SONYPI_DATA_IOPORT);
  	wait_on_command(0, inb_p(SONYPI_CST_IOPORT) & 2, ITERATIONS_LONG);
  	return 0;
  }
  
  static int sonypi_ec_read(u8 addr, u8 *value)
  {

  #ifdef CONFIG_ACPI

  	if (SONYPI_ACPI_ACTIVE)
  		return ec_read(addr, value);
  #endif
  	wait_on_command(1, inb_p(SONYPI_CST_IOPORT) & 3, ITERATIONS_LONG);
  	outb_p(0x80, SONYPI_CST_IOPORT);
  	wait_on_command(0, inb_p(SONYPI_CST_IOPORT) & 2, ITERATIONS_LONG);
  	outb_p(addr, SONYPI_DATA_IOPORT);
  	wait_on_command(0, inb_p(SONYPI_CST_IOPORT) & 2, ITERATIONS_LONG);
  	*value = inb_p(SONYPI_DATA_IOPORT);
  	return 0;
  }
  
  static int ec_read16(u8 addr, u16 *value)
  {
  	u8 val_lb, val_hb;
  	if (sonypi_ec_read(addr, &val_lb))
  		return -1;
  	if (sonypi_ec_read(addr + 1, &val_hb))
  		return -1;
  	*value = val_lb | (val_hb << 8);
  	return 0;
  }
  
  /* Initializes the device - this comes from the AML code in the ACPI bios */
  static void sonypi_type1_srs(void)
  {
  	u32 v;
  
  	pci_read_config_dword(sonypi_device.dev, SONYPI_G10A, &v);
  	v = (v & 0xFFFF0000) | ((u32) sonypi_device.ioport1);
  	pci_write_config_dword(sonypi_device.dev, SONYPI_G10A, v);
  
  	pci_read_config_dword(sonypi_device.dev, SONYPI_G10A, &v);
  	v = (v & 0xFFF0FFFF) |
  	    (((u32) sonypi_device.ioport1 ^ sonypi_device.ioport2) << 16);
  	pci_write_config_dword(sonypi_device.dev, SONYPI_G10A, v);
  
  	v = inl(SONYPI_IRQ_PORT);
  	v &= ~(((u32) 0x3) << SONYPI_IRQ_SHIFT);
  	v |= (((u32) sonypi_device.bits) << SONYPI_IRQ_SHIFT);
  	outl(v, SONYPI_IRQ_PORT);
  
  	pci_read_config_dword(sonypi_device.dev, SONYPI_G10A, &v);
  	v = (v & 0xFF1FFFFF) | 0x00C00000;
  	pci_write_config_dword(sonypi_device.dev, SONYPI_G10A, v);
  }
  
  static void sonypi_type2_srs(void)
  {
  	if (sonypi_ec_write(SONYPI_SHIB, (sonypi_device.ioport1 & 0xFF00) >> 8))
  		printk(KERN_WARNING "ec_write failed
  ");
  	if (sonypi_ec_write(SONYPI_SLOB, sonypi_device.ioport1 & 0x00FF))
  		printk(KERN_WARNING "ec_write failed
  ");
  	if (sonypi_ec_write(SONYPI_SIRQ, sonypi_device.bits))
  		printk(KERN_WARNING "ec_write failed
  ");
  	udelay(10);
  }

  static void sonypi_type3_srs(void)
  {
  	u16 v16;
  	u8  v8;
  
  	/* This model type uses the same initialiazation of
  	 * the embedded controller as the type2 models. */
  	sonypi_type2_srs();
  
  	/* Initialization of PCI config space of the LPC interface bridge. */
  	v16 = (sonypi_device.ioport1 & 0xFFF0) | 0x01;
  	pci_write_config_word(sonypi_device.dev, SONYPI_TYPE3_GID2, v16);
  	pci_read_config_byte(sonypi_device.dev, SONYPI_TYPE3_MISC, &v8);
  	v8 = (v8 & 0xCF) | 0x10;
  	pci_write_config_byte(sonypi_device.dev, SONYPI_TYPE3_MISC, v8);
  }

  /* Disables the device - this comes from the AML code in the ACPI bios */
  static void sonypi_type1_dis(void)
  {
  	u32 v;
  
  	pci_read_config_dword(sonypi_device.dev, SONYPI_G10A, &v);
  	v = v & 0xFF3FFFFF;
  	pci_write_config_dword(sonypi_device.dev, SONYPI_G10A, v);
  
  	v = inl(SONYPI_IRQ_PORT);
  	v |= (0x3 << SONYPI_IRQ_SHIFT);
  	outl(v, SONYPI_IRQ_PORT);
  }
  
  static void sonypi_type2_dis(void)
  {
  	if (sonypi_ec_write(SONYPI_SHIB, 0))
  		printk(KERN_WARNING "ec_write failed
  ");
  	if (sonypi_ec_write(SONYPI_SLOB, 0))
  		printk(KERN_WARNING "ec_write failed
  ");
  	if (sonypi_ec_write(SONYPI_SIRQ, 0))
  		printk(KERN_WARNING "ec_write failed
  ");
  }

  static void sonypi_type3_dis(void)
  {
  	sonypi_type2_dis();
  	udelay(10);
  	pci_write_config_word(sonypi_device.dev, SONYPI_TYPE3_GID2, 0);
  }

  static u8 sonypi_call1(u8 dev)
  {
  	u8 v1, v2;
  
  	wait_on_command(0, inb_p(sonypi_device.ioport2) & 2, ITERATIONS_LONG);
  	outb(dev, sonypi_device.ioport2);
  	v1 = inb_p(sonypi_device.ioport2);
  	v2 = inb_p(sonypi_device.ioport1);
  	return v2;
  }
  
  static u8 sonypi_call2(u8 dev, u8 fn)
  {
  	u8 v1;
  
  	wait_on_command(0, inb_p(sonypi_device.ioport2) & 2, ITERATIONS_LONG);
  	outb(dev, sonypi_device.ioport2);
  	wait_on_command(0, inb_p(sonypi_device.ioport2) & 2, ITERATIONS_LONG);
  	outb(fn, sonypi_device.ioport1);
  	v1 = inb_p(sonypi_device.ioport1);
  	return v1;
  }
  
  static u8 sonypi_call3(u8 dev, u8 fn, u8 v)
  {
  	u8 v1;
  
  	wait_on_command(0, inb_p(sonypi_device.ioport2) & 2, ITERATIONS_LONG);
  	outb(dev, sonypi_device.ioport2);
  	wait_on_command(0, inb_p(sonypi_device.ioport2) & 2, ITERATIONS_LONG);
  	outb(fn, sonypi_device.ioport1);
  	wait_on_command(0, inb_p(sonypi_device.ioport2) & 2, ITERATIONS_LONG);
  	outb(v, sonypi_device.ioport1);
  	v1 = inb_p(sonypi_device.ioport1);
  	return v1;
  }
  
  #if 0
  /* Get brightness, hue etc. Unreliable... */
  static u8 sonypi_read(u8 fn)
  {
  	u8 v1, v2;
  	int n = 100;
  
  	while (n--) {
  		v1 = sonypi_call2(0x8f, fn);
  		v2 = sonypi_call2(0x8f, fn);
  		if (v1 == v2 && v1 != 0xff)
  			return v1;
  	}
  	return 0xff;
  }
  #endif
  
  /* Set brightness, hue etc */
  static void sonypi_set(u8 fn, u8 v)
  {
  	wait_on_command(0, sonypi_call3(0x90, fn, v), ITERATIONS_SHORT);
  }
  
  /* Tests if the camera is ready */
  static int sonypi_camera_ready(void)
  {
  	u8 v;
  
  	v = sonypi_call2(0x8f, SONYPI_CAMERA_STATUS);
  	return (v != 0xff && (v & SONYPI_CAMERA_STATUS_READY));
  }
  
  /* Turns the camera off */
  static void sonypi_camera_off(void)
  {
  	sonypi_set(SONYPI_CAMERA_PICTURE, SONYPI_CAMERA_MUTE_MASK);
  
  	if (!sonypi_device.camera_power)
  		return;
  
  	sonypi_call2(0x91, 0);
  	sonypi_device.camera_power = 0;
  }
  
  /* Turns the camera on */
  static void sonypi_camera_on(void)
  {
  	int i, j;
  
  	if (sonypi_device.camera_power)
  		return;
  
  	for (j = 5; j > 0; j--) {
  
  		while (sonypi_call2(0x91, 0x1))
  			msleep(10);
  		sonypi_call1(0x93);
  
  		for (i = 400; i > 0; i--) {
  			if (sonypi_camera_ready())
  				break;
  			msleep(10);
  		}
  		if (i)
  			break;
  	}
  
  	if (j == 0) {
  		printk(KERN_WARNING "sonypi: failed to power on camera
  ");
  		return;
  	}
  
  	sonypi_set(0x10, 0x5a);
  	sonypi_device.camera_power = 1;
  }
  
  /* sets the bluetooth subsystem power state */
  static void sonypi_setbluetoothpower(u8 state)
  {
  	state = !!state;
  
  	if (sonypi_device.bluetooth_power == state)
  		return;
  
  	sonypi_call2(0x96, state);
  	sonypi_call1(0x82);
  	sonypi_device.bluetooth_power = state;
  }

  static void input_keyrelease(struct work_struct *work)

  {

  	struct sonypi_keypress kp;

  	while (kfifo_out_locked(&sonypi_device.input_fifo, (unsigned char *)&kp,

  			 sizeof(kp), &sonypi_device.input_fifo_lock)
  			== sizeof(kp)) {

  		msleep(10);

  		input_report_key(kp.dev, kp.key, 0);
  		input_sync(kp.dev);
  	}
  }
  
  static void sonypi_report_input_event(u8 event)
  {

  	struct input_dev *jog_dev = sonypi_device.input_jog_dev;
  	struct input_dev *key_dev = sonypi_device.input_key_dev;

  	struct sonypi_keypress kp = { NULL };
  	int i;
  
  	switch (event) {
  	case SONYPI_EVENT_JOGDIAL_UP:
  	case SONYPI_EVENT_JOGDIAL_UP_PRESSED:
  		input_report_rel(jog_dev, REL_WHEEL, 1);
  		input_sync(jog_dev);
  		break;
  
  	case SONYPI_EVENT_JOGDIAL_DOWN:
  	case SONYPI_EVENT_JOGDIAL_DOWN_PRESSED:
  		input_report_rel(jog_dev, REL_WHEEL, -1);
  		input_sync(jog_dev);
  		break;
  
  	case SONYPI_EVENT_JOGDIAL_PRESSED:
  		kp.key = BTN_MIDDLE;
  		kp.dev = jog_dev;
  		break;
  
  	case SONYPI_EVENT_FNKEY_RELEASED:
  		/* Nothing, not all VAIOs generate this event */
  		break;
  
  	default:
  		for (i = 0; sonypi_inputkeys[i].sonypiev; i++)
  			if (event == sonypi_inputkeys[i].sonypiev) {
  				kp.dev = key_dev;
  				kp.key = sonypi_inputkeys[i].inputev;
  				break;
  			}
  		break;
  	}
  
  	if (kp.dev) {
  		input_report_key(kp.dev, kp.key, 1);
  		input_sync(kp.dev);

  		kfifo_in_locked(&sonypi_device.input_fifo,

  			(unsigned char *)&kp, sizeof(kp),
  			&sonypi_device.input_fifo_lock);

  		schedule_work(&sonypi_device.input_work);

  	}
  }
  
  /* Interrupt handler: some event is available */

  static irqreturn_t sonypi_irq(int irq, void *dev_id)

  {
  	u8 v1, v2, event = 0;
  	int i, j;
  
  	v1 = inb_p(sonypi_device.ioport1);
  	v2 = inb_p(sonypi_device.ioport1 + sonypi_device.evtype_offset);
  
  	for (i = 0; sonypi_eventtypes[i].model; i++) {
  		if (sonypi_device.model != sonypi_eventtypes[i].model)
  			continue;
  		if ((v2 & sonypi_eventtypes[i].data) !=
  		    sonypi_eventtypes[i].data)
  			continue;
  		if (!(mask & sonypi_eventtypes[i].mask))
  			continue;
  		for (j = 0; sonypi_eventtypes[i].events[j].event; j++) {
  			if (v1 == sonypi_eventtypes[i].events[j].data) {
  				event = sonypi_eventtypes[i].events[j].event;
  				goto found;
  			}
  		}
  	}
  
  	if (verbose)
  		printk(KERN_WARNING
  		       "sonypi: unknown event port1=0x%02x,port2=0x%02x
  ",
  		       v1, v2);
  	/* We need to return IRQ_HANDLED here because there *are*
  	 * events belonging to the sonypi device we don't know about,
  	 * but we still don't want those to pollute the logs... */
  	return IRQ_HANDLED;
  
  found:
  	if (verbose > 1)
  		printk(KERN_INFO
  		       "sonypi: event port1=0x%02x,port2=0x%02x
  ", v1, v2);

  	if (useinput)
  		sonypi_report_input_event(event);

  	kfifo_in_locked(&sonypi_device.fifo, (unsigned char *)&event,

  			sizeof(event), &sonypi_device.fifo_lock);

  	kill_fasync(&sonypi_device.fifo_async, SIGIO, POLL_IN);
  	wake_up_interruptible(&sonypi_device.fifo_proc_list);
  
  	return IRQ_HANDLED;
  }

  static int sonypi_misc_fasync(int fd, struct file *filp, int on)
  {

  	return fasync_helper(fd, filp, on, &sonypi_device.fifo_async);

  }
  
  static int sonypi_misc_release(struct inode *inode, struct file *file)
  {

  	mutex_lock(&sonypi_device.lock);

  	sonypi_device.open_count--;

  	mutex_unlock(&sonypi_device.lock);

  	return 0;
  }
  
  static int sonypi_misc_open(struct inode *inode, struct file *file)
  {

  	mutex_lock(&sonypi_device.lock);

  	/* Flush input queue on first open */
  	if (!sonypi_device.open_count)

  		kfifo_reset(&sonypi_device.fifo);

  	sonypi_device.open_count++;

  	mutex_unlock(&sonypi_device.lock);

  	return 0;
  }
  
  static ssize_t sonypi_misc_read(struct file *file, char __user *buf,
  				size_t count, loff_t *pos)
  {
  	ssize_t ret;
  	unsigned char c;

  	if ((kfifo_len(&sonypi_device.fifo) == 0) &&

  	    (file->f_flags & O_NONBLOCK))
  		return -EAGAIN;
  
  	ret = wait_event_interruptible(sonypi_device.fifo_proc_list,

  				       kfifo_len(&sonypi_device.fifo) != 0);

  	if (ret)
  		return ret;
  
  	while (ret < count &&

  	       (kfifo_out_locked(&sonypi_device.fifo, &c, sizeof(c),

  				 &sonypi_device.fifo_lock) == sizeof(c))) {

  		if (put_user(c, buf++))
  			return -EFAULT;
  		ret++;
  	}
  
  	if (ret > 0) {

  		struct inode *inode = file_inode(file);

  		inode->i_atime = current_time(inode);

  	}
  
  	return ret;
  }
  
  static unsigned int sonypi_misc_poll(struct file *file, poll_table *wait)
  {
  	poll_wait(file, &sonypi_device.fifo_proc_list, wait);

  	if (kfifo_len(&sonypi_device.fifo))

  		return POLLIN | POLLRDNORM;
  	return 0;
  }

  static long sonypi_misc_ioctl(struct file *fp,

  			     unsigned int cmd, unsigned long arg)
  {

  	long ret = 0;

  	void __user *argp = (void __user *)arg;
  	u8 val8;
  	u16 val16;

  	mutex_lock(&sonypi_device.lock);

  	switch (cmd) {
  	case SONYPI_IOCGBRT:
  		if (sonypi_ec_read(SONYPI_LCD_LIGHT, &val8)) {
  			ret = -EIO;
  			break;
  		}
  		if (copy_to_user(argp, &val8, sizeof(val8)))
  			ret = -EFAULT;
  		break;
  	case SONYPI_IOCSBRT:
  		if (copy_from_user(&val8, argp, sizeof(val8))) {
  			ret = -EFAULT;
  			break;
  		}
  		if (sonypi_ec_write(SONYPI_LCD_LIGHT, val8))
  			ret = -EIO;
  		break;
  	case SONYPI_IOCGBAT1CAP:
  		if (ec_read16(SONYPI_BAT1_FULL, &val16)) {
  			ret = -EIO;
  			break;
  		}
  		if (copy_to_user(argp, &val16, sizeof(val16)))
  			ret = -EFAULT;
  		break;
  	case SONYPI_IOCGBAT1REM:
  		if (ec_read16(SONYPI_BAT1_LEFT, &val16)) {
  			ret = -EIO;
  			break;
  		}
  		if (copy_to_user(argp, &val16, sizeof(val16)))
  			ret = -EFAULT;
  		break;
  	case SONYPI_IOCGBAT2CAP:
  		if (ec_read16(SONYPI_BAT2_FULL, &val16)) {
  			ret = -EIO;
  			break;
  		}
  		if (copy_to_user(argp, &val16, sizeof(val16)))
  			ret = -EFAULT;
  		break;
  	case SONYPI_IOCGBAT2REM:
  		if (ec_read16(SONYPI_BAT2_LEFT, &val16)) {
  			ret = -EIO;
  			break;
  		}
  		if (copy_to_user(argp, &val16, sizeof(val16)))
  			ret = -EFAULT;
  		break;
  	case SONYPI_IOCGBATFLAGS:
  		if (sonypi_ec_read(SONYPI_BAT_FLAGS, &val8)) {
  			ret = -EIO;
  			break;
  		}
  		val8 &= 0x07;
  		if (copy_to_user(argp, &val8, sizeof(val8)))
  			ret = -EFAULT;
  		break;
  	case SONYPI_IOCGBLUE:
  		val8 = sonypi_device.bluetooth_power;
  		if (copy_to_user(argp, &val8, sizeof(val8)))
  			ret = -EFAULT;
  		break;
  	case SONYPI_IOCSBLUE:
  		if (copy_from_user(&val8, argp, sizeof(val8))) {
  			ret = -EFAULT;
  			break;
  		}
  		sonypi_setbluetoothpower(val8);
  		break;
  	/* FAN Controls */
  	case SONYPI_IOCGFAN:
  		if (sonypi_ec_read(SONYPI_FAN0_STATUS, &val8)) {
  			ret = -EIO;
  			break;
  		}

  		if (copy_to_user(argp, &val8, sizeof(val8)))

  			ret = -EFAULT;
  		break;
  	case SONYPI_IOCSFAN:

  		if (copy_from_user(&val8, argp, sizeof(val8))) {

  			ret = -EFAULT;
  			break;
  		}
  		if (sonypi_ec_write(SONYPI_FAN0_STATUS, val8))
  			ret = -EIO;
  		break;
  	/* GET Temperature (useful under APM) */
  	case SONYPI_IOCGTEMP:
  		if (sonypi_ec_read(SONYPI_TEMP_STATUS, &val8)) {
  			ret = -EIO;
  			break;
  		}

  		if (copy_to_user(argp, &val8, sizeof(val8)))

  			ret = -EFAULT;
  		break;
  	default:
  		ret = -EINVAL;
  	}

  	mutex_unlock(&sonypi_device.lock);

  	return ret;
  }

  static const struct file_operations sonypi_misc_fops = {

  	.owner		= THIS_MODULE,
  	.read		= sonypi_misc_read,
  	.poll		= sonypi_misc_poll,
  	.open		= sonypi_misc_open,
  	.release	= sonypi_misc_release,
  	.fasync		= sonypi_misc_fasync,

  	.unlocked_ioctl	= sonypi_misc_ioctl,
  	.llseek		= no_llseek,

  };
  
  static struct miscdevice sonypi_misc_device = {
  	.minor		= MISC_DYNAMIC_MINOR,
  	.name		= "sonypi",
  	.fops		= &sonypi_misc_fops,
  };
  
  static void sonypi_enable(unsigned int camera_on)
  {

  	switch (sonypi_device.model) {
  	case SONYPI_DEVICE_MODEL_TYPE1:

  		sonypi_type1_srs();

  		break;
  	case SONYPI_DEVICE_MODEL_TYPE2:
  		sonypi_type2_srs();
  		break;
  	case SONYPI_DEVICE_MODEL_TYPE3:
  		sonypi_type3_srs();
  		break;
  	}

  
  	sonypi_call1(0x82);
  	sonypi_call2(0x81, 0xff);
  	sonypi_call1(compat ? 0x92 : 0x82);
  
  	/* Enable ACPI mode to get Fn key events */
  	if (!SONYPI_ACPI_ACTIVE && fnkeyinit)
  		outb(0xf0, 0xb2);
  
  	if (camera && camera_on)
  		sonypi_camera_on();
  }
  
  static int sonypi_disable(void)
  {
  	sonypi_call2(0x81, 0);	/* make sure we don't get any more events */
  	if (camera)
  		sonypi_camera_off();
  
  	/* disable ACPI mode */
  	if (!SONYPI_ACPI_ACTIVE && fnkeyinit)
  		outb(0xf1, 0xb2);

  	switch (sonypi_device.model) {
  	case SONYPI_DEVICE_MODEL_TYPE1:

  		sonypi_type1_dis();

  		break;
  	case SONYPI_DEVICE_MODEL_TYPE2:
  		sonypi_type2_dis();
  		break;
  	case SONYPI_DEVICE_MODEL_TYPE3:
  		sonypi_type3_dis();
  		break;
  	}

  	return 0;
  }

  #ifdef CONFIG_ACPI
  static int sonypi_acpi_add(struct acpi_device *device)
  {
  	sonypi_acpi_device = device;
  	strcpy(acpi_device_name(device), "Sony laptop hotkeys");
  	strcpy(acpi_device_class(device), "sony/hotkey");
  	return 0;
  }

  static int sonypi_acpi_remove(struct acpi_device *device)

  {
  	sonypi_acpi_device = NULL;
  	return 0;
  }

  static const struct acpi_device_id sonypi_device_ids[] = {

  	{"SNY6001", 0},
  	{"", 0},
  };

  static struct acpi_driver sonypi_acpi_driver = {
  	.name           = "sonypi",
  	.class          = "hkey",

  	.ids            = sonypi_device_ids,

  	.ops            = {
  		           .add = sonypi_acpi_add,
  			   .remove = sonypi_acpi_remove,
  	},
  };
  #endif

  static int sonypi_create_input_devices(struct platform_device *pdev)

  {
  	struct input_dev *jog_dev;
  	struct input_dev *key_dev;
  	int i;

  	int error;

  
  	sonypi_device.input_jog_dev = jog_dev = input_allocate_device();
  	if (!jog_dev)
  		return -ENOMEM;
  
  	jog_dev->name = "Sony Vaio Jogdial";
  	jog_dev->id.bustype = BUS_ISA;
  	jog_dev->id.vendor = PCI_VENDOR_ID_SONY;

  	jog_dev->dev.parent = &pdev->dev;

  	jog_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
  	jog_dev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_MIDDLE);
  	jog_dev->relbit[0] = BIT_MASK(REL_WHEEL);

  
  	sonypi_device.input_key_dev = key_dev = input_allocate_device();
  	if (!key_dev) {

  		error = -ENOMEM;
  		goto err_free_jogdev;

  	}
  
  	key_dev->name = "Sony Vaio Keys";
  	key_dev->id.bustype = BUS_ISA;
  	key_dev->id.vendor = PCI_VENDOR_ID_SONY;

  	key_dev->dev.parent = &pdev->dev;

  
  	/* Initialize the Input Drivers: special keys */

  	key_dev->evbit[0] = BIT_MASK(EV_KEY);

  	for (i = 0; sonypi_inputkeys[i].sonypiev; i++)
  		if (sonypi_inputkeys[i].inputev)
  			set_bit(sonypi_inputkeys[i].inputev, key_dev->keybit);

  	error = input_register_device(jog_dev);
  	if (error)
  		goto err_free_keydev;
  
  	error = input_register_device(key_dev);
  	if (error)
  		goto err_unregister_jogdev;

  
  	return 0;

  
   err_unregister_jogdev:
  	input_unregister_device(jog_dev);
  	/* Set to NULL so we don't free it again below */
  	jog_dev = NULL;
   err_free_keydev:
  	input_free_device(key_dev);
  	sonypi_device.input_key_dev = NULL;
   err_free_jogdev:
  	input_free_device(jog_dev);
  	sonypi_device.input_jog_dev = NULL;
  
  	return error;

  }

  static int sonypi_setup_ioports(struct sonypi_device *dev,

  				const struct sonypi_ioport_list *ioport_list)

  {

  	/* try to detect if sony-laptop is being used and thus
  	 * has already requested one of the known ioports.
  	 * As in the deprecated check_region this is racy has we have
  	 * multiple ioports available and one of them can be requested
  	 * between this check and the subsequent request. Anyway, as an
  	 * attempt to be some more user-friendly as we currently are,
  	 * this is enough.
  	 */
  	const struct sonypi_ioport_list *check = ioport_list;
  	while (check_ioport && check->port1) {
  		if (!request_region(check->port1,
  				   sonypi_device.region_size,

  				   "Sony Programmable I/O Device Check")) {

  			printk(KERN_ERR "sonypi: ioport 0x%.4x busy, using sony-laptop? "
  					"if not use check_ioport=0
  ",
  					check->port1);
  			return -EBUSY;
  		}
  		release_region(check->port1, sonypi_device.region_size);
  		check++;
  	}

  	while (ioport_list->port1) {

  		if (request_region(ioport_list->port1,
  				   sonypi_device.region_size,

  				   "Sony Programmable I/O Device")) {

  			dev->ioport1 = ioport_list->port1;
  			dev->ioport2 = ioport_list->port2;
  			return 0;
  		}
  		ioport_list++;
  	}

  	return -EBUSY;
  }

  static int sonypi_setup_irq(struct sonypi_device *dev,

  				      const struct sonypi_irq_list *irq_list)
  {
  	while (irq_list->irq) {
  
  		if (!request_irq(irq_list->irq, sonypi_irq,

  				 IRQF_SHARED, "sonypi", sonypi_irq)) {

  			dev->irq = irq_list->irq;
  			dev->bits = irq_list->bits;
  			return 0;
  		}
  		irq_list++;
  	}
  
  	return -EBUSY;
  }

  static void sonypi_display_info(void)

  {
  	printk(KERN_INFO "sonypi: detected type%d model, "
  	       "verbose = %d, fnkeyinit = %s, camera = %s, "
  	       "compat = %s, mask = 0x%08lx, useinput = %s, acpi = %s
  ",
  	       sonypi_device.model,
  	       verbose,
  	       fnkeyinit ? "on" : "off",
  	       camera ? "on" : "off",
  	       compat ? "on" : "off",
  	       mask,
  	       useinput ? "on" : "off",
  	       SONYPI_ACPI_ACTIVE ? "on" : "off");
  	printk(KERN_INFO "sonypi: enabled at irq=%d, port1=0x%x, port2=0x%x
  ",
  	       sonypi_device.irq,
  	       sonypi_device.ioport1, sonypi_device.ioport2);
  
  	if (minor == -1)
  		printk(KERN_INFO "sonypi: device allocated minor is %d
  ",
  		       sonypi_misc_device.minor);
  }

  static int sonypi_probe(struct platform_device *dev)

  {
  	const struct sonypi_ioport_list *ioport_list;
  	const struct sonypi_irq_list *irq_list;
  	struct pci_dev *pcidev;
  	int error;

  	printk(KERN_WARNING "sonypi: please try the sony-laptop module instead "
  			"and report failures, see also "
  			"http://www.linux.it/~malattia/wiki/index.php/Sony_drivers
  ");

  	spin_lock_init(&sonypi_device.fifo_lock);

  	error = kfifo_alloc(&sonypi_device.fifo, SONYPI_BUF_SIZE, GFP_KERNEL);

  	if (error) {

  		printk(KERN_ERR "sonypi: kfifo_alloc failed
  ");

  		return error;

  	}
  
  	init_waitqueue_head(&sonypi_device.fifo_proc_list);

  	mutex_init(&sonypi_device.lock);

  	sonypi_device.bluetooth_power = -1;

  	if ((pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
  				     PCI_DEVICE_ID_INTEL_82371AB_3, NULL)))
  		sonypi_device.model = SONYPI_DEVICE_MODEL_TYPE1;
  	else if ((pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
  					  PCI_DEVICE_ID_INTEL_ICH6_1, NULL)))
  		sonypi_device.model = SONYPI_DEVICE_MODEL_TYPE3;

  	else if ((pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
  					  PCI_DEVICE_ID_INTEL_ICH7_1, NULL)))
  		sonypi_device.model = SONYPI_DEVICE_MODEL_TYPE3;

  	else
  		sonypi_device.model = SONYPI_DEVICE_MODEL_TYPE2;

  	if (pcidev && pci_enable_device(pcidev)) {
  		printk(KERN_ERR "sonypi: pci_enable_device failed
  ");

  		error = -EIO;
  		goto err_put_pcidev;

  	}

  	sonypi_device.dev = pcidev;

  
  	if (sonypi_device.model == SONYPI_DEVICE_MODEL_TYPE1) {
  		ioport_list = sonypi_type1_ioport_list;
  		sonypi_device.region_size = SONYPI_TYPE1_REGION_SIZE;
  		sonypi_device.evtype_offset = SONYPI_TYPE1_EVTYPE_OFFSET;
  		irq_list = sonypi_type1_irq_list;
  	} else if (sonypi_device.model == SONYPI_DEVICE_MODEL_TYPE2) {

  		ioport_list = sonypi_type2_ioport_list;
  		sonypi_device.region_size = SONYPI_TYPE2_REGION_SIZE;
  		sonypi_device.evtype_offset = SONYPI_TYPE2_EVTYPE_OFFSET;
  		irq_list = sonypi_type2_irq_list;
  	} else {

  		ioport_list = sonypi_type3_ioport_list;
  		sonypi_device.region_size = SONYPI_TYPE3_REGION_SIZE;
  		sonypi_device.evtype_offset = SONYPI_TYPE3_EVTYPE_OFFSET;
  		irq_list = sonypi_type3_irq_list;

  	}

  	error = sonypi_setup_ioports(&sonypi_device, ioport_list);
  	if (error) {
  		printk(KERN_ERR "sonypi: failed to request ioports
  ");
  		goto err_disable_pcidev;

  	}

  	error = sonypi_setup_irq(&sonypi_device, irq_list);
  	if (error) {
  		printk(KERN_ERR "sonypi: request_irq failed
  ");
  		goto err_free_ioports;

  	}

  	if (minor != -1)
  		sonypi_misc_device.minor = minor;
  	error = misc_register(&sonypi_misc_device);
  	if (error) {
  		printk(KERN_ERR "sonypi: misc_register failed
  ");
  		goto err_free_irq;

  	}

  	sonypi_display_info();

  	if (useinput) {

  		error = sonypi_create_input_devices(dev);

  		if (error) {
  			printk(KERN_ERR
  				"sonypi: failed to create input devices
  ");
  			goto err_miscdev_unregister;
  		}

  
  		spin_lock_init(&sonypi_device.input_fifo_lock);

  		error = kfifo_alloc(&sonypi_device.input_fifo, SONYPI_BUF_SIZE,

  				GFP_KERNEL);

  		if (error) {

  			printk(KERN_ERR "sonypi: kfifo_alloc failed
  ");

  			goto err_inpdev_unregister;

  		}

  		INIT_WORK(&sonypi_device.input_work, input_keyrelease);

  	}

  	sonypi_enable(0);

  	return 0;

   err_inpdev_unregister:

  	input_unregister_device(sonypi_device.input_key_dev);
  	input_unregister_device(sonypi_device.input_jog_dev);

   err_miscdev_unregister:
  	misc_deregister(&sonypi_misc_device);
   err_free_irq:

  	free_irq(sonypi_device.irq, sonypi_irq);

   err_free_ioports:

  	release_region(sonypi_device.ioport1, sonypi_device.region_size);

   err_disable_pcidev:

  	if (pcidev)
  		pci_disable_device(pcidev);

   err_put_pcidev:
  	pci_dev_put(pcidev);

  	kfifo_free(&sonypi_device.fifo);

  
  	return error;

  }

  static int sonypi_remove(struct platform_device *dev)

  {
  	sonypi_disable();

  	synchronize_irq(sonypi_device.irq);

  	flush_work(&sonypi_device.input_work);

  	if (useinput) {

  		input_unregister_device(sonypi_device.input_key_dev);
  		input_unregister_device(sonypi_device.input_jog_dev);

  		kfifo_free(&sonypi_device.input_fifo);

  	}

  	misc_deregister(&sonypi_misc_device);

  	free_irq(sonypi_device.irq, sonypi_irq);
  	release_region(sonypi_device.ioport1, sonypi_device.region_size);

  
  	if (sonypi_device.dev) {

  		pci_disable_device(sonypi_device.dev);

  		pci_dev_put(sonypi_device.dev);
  	}

  	kfifo_free(&sonypi_device.fifo);

  
  	return 0;
  }

  #ifdef CONFIG_PM_SLEEP

  static int old_camera_power;

  static int sonypi_suspend(struct device *dev)

  {
  	old_camera_power = sonypi_device.camera_power;
  	sonypi_disable();
  
  	return 0;
  }

  static int sonypi_resume(struct device *dev)

  {
  	sonypi_enable(old_camera_power);
  	return 0;
  }

  
  static SIMPLE_DEV_PM_OPS(sonypi_pm, sonypi_suspend, sonypi_resume);
  #define SONYPI_PM	(&sonypi_pm)

  #else

  #define SONYPI_PM	NULL

  #endif
  
  static void sonypi_shutdown(struct platform_device *dev)
  {
  	sonypi_disable();

  }

  static struct platform_driver sonypi_driver = {
  	.driver		= {
  		.name	= "sonypi",

  		.pm	= SONYPI_PM,

  	},
  	.probe		= sonypi_probe,

  	.remove		= sonypi_remove,

  	.shutdown	= sonypi_shutdown,

  };
  
  static struct platform_device *sonypi_platform_device;

  static struct dmi_system_id __initdata sonypi_dmi_table[] = {
  	{
  		.ident = "Sony Vaio",
  		.matches = {
  			DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
  			DMI_MATCH(DMI_PRODUCT_NAME, "PCG-"),
  		},
  	},
  	{
  		.ident = "Sony Vaio",
  		.matches = {
  			DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
  			DMI_MATCH(DMI_PRODUCT_NAME, "VGN-"),
  		},
  	},
  	{ }
  };
  
  static int __init sonypi_init(void)
  {

  	int error;
  
  	printk(KERN_INFO
  		"sonypi: Sony Programmable I/O Controller Driver v%s.
  ",
  		SONYPI_DRIVER_VERSION);

  
  	if (!dmi_check_system(sonypi_dmi_table))
  		return -ENODEV;

  	error = platform_driver_register(&sonypi_driver);
  	if (error)
  		return error;

  	sonypi_platform_device = platform_device_alloc("sonypi", -1);
  	if (!sonypi_platform_device) {
  		error = -ENOMEM;
  		goto err_driver_unregister;
  	}

  	error = platform_device_add(sonypi_platform_device);
  	if (error)
  		goto err_free_device;

  #ifdef CONFIG_ACPI

  	if (acpi_bus_register_driver(&sonypi_acpi_driver) >= 0)
  		acpi_driver_registered = 1;

  #endif

  	return 0;
  
   err_free_device:
  	platform_device_put(sonypi_platform_device);
   err_driver_unregister:
  	platform_driver_unregister(&sonypi_driver);
  	return error;

  }
  
  static void __exit sonypi_exit(void)
  {

  #ifdef CONFIG_ACPI

  	if (acpi_driver_registered)

  		acpi_bus_unregister_driver(&sonypi_acpi_driver);
  #endif

  	platform_device_unregister(sonypi_platform_device);

  	platform_driver_unregister(&sonypi_driver);

  	printk(KERN_INFO "sonypi: removed.
  ");

  }
  
  module_init(sonypi_init);
  module_exit(sonypi_exit);