sonypi.c

Go to the documentation of this file.

/*
 * Sony Programmable I/O Control Device driver for VAIO
 *
 * Copyright (C) 2007 Mattia Dongili <[email protected]>
 *
 * Copyright (C) 2001-2005 Stelian Pop <[email protected]>
 *
 * Copyright (C) 2005 Narayanan R S <[email protected]>
 *
 * Copyright (C) 2001-2002 Alcôve <www.alcove.com>
 *
 * Copyright (C) 2001 Michael Ashley <[email protected]>
 *
 * Copyright (C) 2001 Junichi Morita <[email protected]>
 *
 * Copyright (C) 2000 Takaya Kinjo <[email protected]>
 *
 * Copyright (C) 2000 Andrew Tridgell <[email protected]>
 *
 * 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 <[email protected]>");
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)\n", __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\n");
    if (sonypi_ec_write(SONYPI_SLOB, sonypi_device.ioport1 & 0x00FF))
        printk(KERN_WARNING "ec_write failed\n");
    if (sonypi_ec_write(SONYPI_SIRQ, sonypi_device.bits))
        printk(KERN_WARNING "ec_write failed\n");
    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\n");
    if (sonypi_ec_write(SONYPI_SLOB, 0))
        printk(KERN_WARNING "ec_write failed\n");
    if (sonypi_ec_write(SONYPI_SIRQ, 0))
        printk(KERN_WARNING "ec_write failed\n");
}

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\n");
        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\n",
               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\n", v1, v2);

    if (useinput)
        sonypi_report_input_event(event);

#ifdef CONFIG_ACPI
    if (sonypi_acpi_device)
        acpi_bus_generate_proc_event(sonypi_acpi_device, 1, event);
#endif

    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->f_path.dentry->d_inode;
        inode->i_atime = current_fs_time(inode->i_sb);
    }

    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, int type)
{
    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 __devinit 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 __devinit 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\n",
                    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 __devinit 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 __devinit 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\n",
           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\n",
           sonypi_device.irq,
           sonypi_device.ioport1, sonypi_device.ioport2);

    if (minor == -1)
        printk(KERN_INFO "sonypi: device allocated minor is %d\n",
               sonypi_misc_device.minor);
}

static int __devinit 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\n");

    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\n");
        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\n");
        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\n");
        goto err_disable_pcidev;
    }

    error = sonypi_setup_irq(&sonypi_device, irq_list);
    if (error) {
        printk(KERN_ERR "sonypi: request_irq failed\n");
        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\n");
        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\n");
            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\n");
            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 __devexit 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",
        .owner  = THIS_MODULE,
        .pm = SONYPI_PM,
    },
    .probe      = sonypi_probe,
    .remove     = __devexit_p(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.\n",
        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.\n");
}

module_init(sonypi_init);
module_exit(sonypi_exit);