linux/drivers/platform/x86/sony-laptop.c
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   1/*
   2 * ACPI Sony Notebook Control Driver (SNC and SPIC)
   3 *
   4 * Copyright (C) 2004-2005 Stelian Pop <stelian@popies.net>
   5 * Copyright (C) 2007-2009 Mattia Dongili <malattia@linux.it>
   6 *
   7 * Parts of this driver inspired from asus_acpi.c and ibm_acpi.c
   8 * which are copyrighted by their respective authors.
   9 *
  10 * The SNY6001 driver part is based on the sonypi driver which includes
  11 * material from:
  12 *
  13 * Copyright (C) 2001-2005 Stelian Pop <stelian@popies.net>
  14 *
  15 * Copyright (C) 2005 Narayanan R S <nars@kadamba.org>
  16 *
  17 * Copyright (C) 2001-2002 AlcĂ´ve <www.alcove.com>
  18 *
  19 * Copyright (C) 2001 Michael Ashley <m.ashley@unsw.edu.au>
  20 *
  21 * Copyright (C) 2001 Junichi Morita <jun1m@mars.dti.ne.jp>
  22 *
  23 * Copyright (C) 2000 Takaya Kinjo <t-kinjo@tc4.so-net.ne.jp>
  24 *
  25 * Copyright (C) 2000 Andrew Tridgell <tridge@valinux.com>
  26 *
  27 * Earlier work by Werner Almesberger, Paul `Rusty' Russell and Paul Mackerras.
  28 *
  29 * This program is free software; you can redistribute it and/or modify
  30 * it under the terms of the GNU General Public License as published by
  31 * the Free Software Foundation; either version 2 of the License, or
  32 * (at your option) any later version.
  33 *
  34 * This program is distributed in the hope that it will be useful,
  35 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  36 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  37 * GNU General Public License for more details.
  38 *
  39 * You should have received a copy of the GNU General Public License
  40 * along with this program; if not, write to the Free Software
  41 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  42 *
  43 */
  44
  45#include <linux/kernel.h>
  46#include <linux/module.h>
  47#include <linux/moduleparam.h>
  48#include <linux/init.h>
  49#include <linux/types.h>
  50#include <linux/backlight.h>
  51#include <linux/platform_device.h>
  52#include <linux/err.h>
  53#include <linux/dmi.h>
  54#include <linux/pci.h>
  55#include <linux/interrupt.h>
  56#include <linux/delay.h>
  57#include <linux/input.h>
  58#include <linux/kfifo.h>
  59#include <linux/workqueue.h>
  60#include <linux/acpi.h>
  61#include <acpi/acpi_drivers.h>
  62#include <acpi/acpi_bus.h>
  63#include <asm/uaccess.h>
  64#include <linux/sonypi.h>
  65#include <linux/sony-laptop.h>
  66#include <linux/rfkill.h>
  67#ifdef CONFIG_SONYPI_COMPAT
  68#include <linux/poll.h>
  69#include <linux/miscdevice.h>
  70#endif
  71
  72#define DRV_PFX                 "sony-laptop: "
  73#define dprintk(msg...)         do {                    \
  74        if (debug) printk(KERN_WARNING DRV_PFX  msg);   \
  75} while (0)
  76
  77#define SONY_LAPTOP_DRIVER_VERSION      "0.6"
  78
  79#define SONY_NC_CLASS           "sony-nc"
  80#define SONY_NC_HID             "SNY5001"
  81#define SONY_NC_DRIVER_NAME     "Sony Notebook Control Driver"
  82
  83#define SONY_PIC_CLASS          "sony-pic"
  84#define SONY_PIC_HID            "SNY6001"
  85#define SONY_PIC_DRIVER_NAME    "Sony Programmable IO Control Driver"
  86
  87MODULE_AUTHOR("Stelian Pop, Mattia Dongili");
  88MODULE_DESCRIPTION("Sony laptop extras driver (SPIC and SNC ACPI device)");
  89MODULE_LICENSE("GPL");
  90MODULE_VERSION(SONY_LAPTOP_DRIVER_VERSION);
  91
  92static int debug;
  93module_param(debug, int, 0);
  94MODULE_PARM_DESC(debug, "set this to 1 (and RTFM) if you want to help "
  95                 "the development of this driver");
  96
  97static int no_spic;             /* = 0 */
  98module_param(no_spic, int, 0444);
  99MODULE_PARM_DESC(no_spic,
 100                 "set this if you don't want to enable the SPIC device");
 101
 102static int compat;              /* = 0 */
 103module_param(compat, int, 0444);
 104MODULE_PARM_DESC(compat,
 105                 "set this if you want to enable backward compatibility mode");
 106
 107static unsigned long mask = 0xffffffff;
 108module_param(mask, ulong, 0644);
 109MODULE_PARM_DESC(mask,
 110                 "set this to the mask of event you want to enable (see doc)");
 111
 112static int camera;              /* = 0 */
 113module_param(camera, int, 0444);
 114MODULE_PARM_DESC(camera,
 115                 "set this to 1 to enable Motion Eye camera controls "
 116                 "(only use it if you have a C1VE or C1VN model)");
 117
 118#ifdef CONFIG_SONYPI_COMPAT
 119static int minor = -1;
 120module_param(minor, int, 0);
 121MODULE_PARM_DESC(minor,
 122                 "minor number of the misc device for the SPIC compatibility code, "
 123                 "default is -1 (automatic)");
 124#endif
 125
 126enum sony_nc_rfkill {
 127        SONY_WIFI,
 128        SONY_BLUETOOTH,
 129        SONY_WWAN,
 130        SONY_WIMAX,
 131        N_SONY_RFKILL,
 132};
 133
 134static struct rfkill *sony_rfkill_devices[N_SONY_RFKILL];
 135static int sony_rfkill_address[N_SONY_RFKILL] = {0x300, 0x500, 0x700, 0x900};
 136static void sony_nc_rfkill_update(void);
 137
 138/*********** Input Devices ***********/
 139
 140#define SONY_LAPTOP_BUF_SIZE    128
 141struct sony_laptop_input_s {
 142        atomic_t                users;
 143        struct input_dev        *jog_dev;
 144        struct input_dev        *key_dev;
 145        struct kfifo            *fifo;
 146        spinlock_t              fifo_lock;
 147        struct workqueue_struct *wq;
 148};
 149
 150static struct sony_laptop_input_s sony_laptop_input = {
 151        .users = ATOMIC_INIT(0),
 152};
 153
 154struct sony_laptop_keypress {
 155        struct input_dev *dev;
 156        int key;
 157};
 158
 159/* Correspondance table between sonypi events
 160 * and input layer indexes in the keymap
 161 */
 162static int sony_laptop_input_index[] = {
 163        -1,     /*  0 no event */
 164        -1,     /*  1 SONYPI_EVENT_JOGDIAL_DOWN */
 165        -1,     /*  2 SONYPI_EVENT_JOGDIAL_UP */
 166        -1,     /*  3 SONYPI_EVENT_JOGDIAL_DOWN_PRESSED */
 167        -1,     /*  4 SONYPI_EVENT_JOGDIAL_UP_PRESSED */
 168        -1,     /*  5 SONYPI_EVENT_JOGDIAL_PRESSED */
 169        -1,     /*  6 SONYPI_EVENT_JOGDIAL_RELEASED */
 170         0,     /*  7 SONYPI_EVENT_CAPTURE_PRESSED */
 171         1,     /*  8 SONYPI_EVENT_CAPTURE_RELEASED */
 172         2,     /*  9 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
 173         3,     /* 10 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
 174         4,     /* 11 SONYPI_EVENT_FNKEY_ESC */
 175         5,     /* 12 SONYPI_EVENT_FNKEY_F1 */
 176         6,     /* 13 SONYPI_EVENT_FNKEY_F2 */
 177         7,     /* 14 SONYPI_EVENT_FNKEY_F3 */
 178         8,     /* 15 SONYPI_EVENT_FNKEY_F4 */
 179         9,     /* 16 SONYPI_EVENT_FNKEY_F5 */
 180        10,     /* 17 SONYPI_EVENT_FNKEY_F6 */
 181        11,     /* 18 SONYPI_EVENT_FNKEY_F7 */
 182        12,     /* 19 SONYPI_EVENT_FNKEY_F8 */
 183        13,     /* 20 SONYPI_EVENT_FNKEY_F9 */
 184        14,     /* 21 SONYPI_EVENT_FNKEY_F10 */
 185        15,     /* 22 SONYPI_EVENT_FNKEY_F11 */
 186        16,     /* 23 SONYPI_EVENT_FNKEY_F12 */
 187        17,     /* 24 SONYPI_EVENT_FNKEY_1 */
 188        18,     /* 25 SONYPI_EVENT_FNKEY_2 */
 189        19,     /* 26 SONYPI_EVENT_FNKEY_D */
 190        20,     /* 27 SONYPI_EVENT_FNKEY_E */
 191        21,     /* 28 SONYPI_EVENT_FNKEY_F */
 192        22,     /* 29 SONYPI_EVENT_FNKEY_S */
 193        23,     /* 30 SONYPI_EVENT_FNKEY_B */
 194        24,     /* 31 SONYPI_EVENT_BLUETOOTH_PRESSED */
 195        25,     /* 32 SONYPI_EVENT_PKEY_P1 */
 196        26,     /* 33 SONYPI_EVENT_PKEY_P2 */
 197        27,     /* 34 SONYPI_EVENT_PKEY_P3 */
 198        28,     /* 35 SONYPI_EVENT_BACK_PRESSED */
 199        -1,     /* 36 SONYPI_EVENT_LID_CLOSED */
 200        -1,     /* 37 SONYPI_EVENT_LID_OPENED */
 201        29,     /* 38 SONYPI_EVENT_BLUETOOTH_ON */
 202        30,     /* 39 SONYPI_EVENT_BLUETOOTH_OFF */
 203        31,     /* 40 SONYPI_EVENT_HELP_PRESSED */
 204        32,     /* 41 SONYPI_EVENT_FNKEY_ONLY */
 205        33,     /* 42 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
 206        34,     /* 43 SONYPI_EVENT_JOGDIAL_FAST_UP */
 207        35,     /* 44 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
 208        36,     /* 45 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
 209        37,     /* 46 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
 210        38,     /* 47 SONYPI_EVENT_JOGDIAL_VFAST_UP */
 211        39,     /* 48 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
 212        40,     /* 49 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
 213        41,     /* 50 SONYPI_EVENT_ZOOM_PRESSED */
 214        42,     /* 51 SONYPI_EVENT_THUMBPHRASE_PRESSED */
 215        43,     /* 52 SONYPI_EVENT_MEYE_FACE */
 216        44,     /* 53 SONYPI_EVENT_MEYE_OPPOSITE */
 217        45,     /* 54 SONYPI_EVENT_MEMORYSTICK_INSERT */
 218        46,     /* 55 SONYPI_EVENT_MEMORYSTICK_EJECT */
 219        -1,     /* 56 SONYPI_EVENT_ANYBUTTON_RELEASED */
 220        -1,     /* 57 SONYPI_EVENT_BATTERY_INSERT */
 221        -1,     /* 58 SONYPI_EVENT_BATTERY_REMOVE */
 222        -1,     /* 59 SONYPI_EVENT_FNKEY_RELEASED */
 223        47,     /* 60 SONYPI_EVENT_WIRELESS_ON */
 224        48,     /* 61 SONYPI_EVENT_WIRELESS_OFF */
 225        49,     /* 62 SONYPI_EVENT_ZOOM_IN_PRESSED */
 226        50,     /* 63 SONYPI_EVENT_ZOOM_OUT_PRESSED */
 227        51,     /* 64 SONYPI_EVENT_CD_EJECT_PRESSED */
 228        52,     /* 65 SONYPI_EVENT_MODEKEY_PRESSED */
 229        53,     /* 66 SONYPI_EVENT_PKEY_P4 */
 230        54,     /* 67 SONYPI_EVENT_PKEY_P5 */
 231        55,     /* 68 SONYPI_EVENT_SETTINGKEY_PRESSED */
 232        56,     /* 69 SONYPI_EVENT_VOLUME_INC_PRESSED */
 233        57,     /* 70 SONYPI_EVENT_VOLUME_DEC_PRESSED */
 234        -1,     /* 71 SONYPI_EVENT_BRIGHTNESS_PRESSED */
 235};
 236
 237static int sony_laptop_input_keycode_map[] = {
 238        KEY_CAMERA,     /*  0 SONYPI_EVENT_CAPTURE_PRESSED */
 239        KEY_RESERVED,   /*  1 SONYPI_EVENT_CAPTURE_RELEASED */
 240        KEY_RESERVED,   /*  2 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
 241        KEY_RESERVED,   /*  3 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
 242        KEY_FN_ESC,     /*  4 SONYPI_EVENT_FNKEY_ESC */
 243        KEY_FN_F1,      /*  5 SONYPI_EVENT_FNKEY_F1 */
 244        KEY_FN_F2,      /*  6 SONYPI_EVENT_FNKEY_F2 */
 245        KEY_FN_F3,      /*  7 SONYPI_EVENT_FNKEY_F3 */
 246        KEY_FN_F4,      /*  8 SONYPI_EVENT_FNKEY_F4 */
 247        KEY_FN_F5,      /*  9 SONYPI_EVENT_FNKEY_F5 */
 248        KEY_FN_F6,      /* 10 SONYPI_EVENT_FNKEY_F6 */
 249        KEY_FN_F7,      /* 11 SONYPI_EVENT_FNKEY_F7 */
 250        KEY_FN_F8,      /* 12 SONYPI_EVENT_FNKEY_F8 */
 251        KEY_FN_F9,      /* 13 SONYPI_EVENT_FNKEY_F9 */
 252        KEY_FN_F10,     /* 14 SONYPI_EVENT_FNKEY_F10 */
 253        KEY_FN_F11,     /* 15 SONYPI_EVENT_FNKEY_F11 */
 254        KEY_FN_F12,     /* 16 SONYPI_EVENT_FNKEY_F12 */
 255        KEY_FN_F1,      /* 17 SONYPI_EVENT_FNKEY_1 */
 256        KEY_FN_F2,      /* 18 SONYPI_EVENT_FNKEY_2 */
 257        KEY_FN_D,       /* 19 SONYPI_EVENT_FNKEY_D */
 258        KEY_FN_E,       /* 20 SONYPI_EVENT_FNKEY_E */
 259        KEY_FN_F,       /* 21 SONYPI_EVENT_FNKEY_F */
 260        KEY_FN_S,       /* 22 SONYPI_EVENT_FNKEY_S */
 261        KEY_FN_B,       /* 23 SONYPI_EVENT_FNKEY_B */
 262        KEY_BLUETOOTH,  /* 24 SONYPI_EVENT_BLUETOOTH_PRESSED */
 263        KEY_PROG1,      /* 25 SONYPI_EVENT_PKEY_P1 */
 264        KEY_PROG2,      /* 26 SONYPI_EVENT_PKEY_P2 */
 265        KEY_PROG3,      /* 27 SONYPI_EVENT_PKEY_P3 */
 266        KEY_BACK,       /* 28 SONYPI_EVENT_BACK_PRESSED */
 267        KEY_BLUETOOTH,  /* 29 SONYPI_EVENT_BLUETOOTH_ON */
 268        KEY_BLUETOOTH,  /* 30 SONYPI_EVENT_BLUETOOTH_OFF */
 269        KEY_HELP,       /* 31 SONYPI_EVENT_HELP_PRESSED */
 270        KEY_FN,         /* 32 SONYPI_EVENT_FNKEY_ONLY */
 271        KEY_RESERVED,   /* 33 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
 272        KEY_RESERVED,   /* 34 SONYPI_EVENT_JOGDIAL_FAST_UP */
 273        KEY_RESERVED,   /* 35 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
 274        KEY_RESERVED,   /* 36 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
 275        KEY_RESERVED,   /* 37 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
 276        KEY_RESERVED,   /* 38 SONYPI_EVENT_JOGDIAL_VFAST_UP */
 277        KEY_RESERVED,   /* 39 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
 278        KEY_RESERVED,   /* 40 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
 279        KEY_ZOOM,       /* 41 SONYPI_EVENT_ZOOM_PRESSED */
 280        BTN_THUMB,      /* 42 SONYPI_EVENT_THUMBPHRASE_PRESSED */
 281        KEY_RESERVED,   /* 43 SONYPI_EVENT_MEYE_FACE */
 282        KEY_RESERVED,   /* 44 SONYPI_EVENT_MEYE_OPPOSITE */
 283        KEY_RESERVED,   /* 45 SONYPI_EVENT_MEMORYSTICK_INSERT */
 284        KEY_RESERVED,   /* 46 SONYPI_EVENT_MEMORYSTICK_EJECT */
 285        KEY_WLAN,       /* 47 SONYPI_EVENT_WIRELESS_ON */
 286        KEY_WLAN,       /* 48 SONYPI_EVENT_WIRELESS_OFF */
 287        KEY_ZOOMIN,     /* 49 SONYPI_EVENT_ZOOM_IN_PRESSED */
 288        KEY_ZOOMOUT,    /* 50 SONYPI_EVENT_ZOOM_OUT_PRESSED */
 289        KEY_EJECTCD,    /* 51 SONYPI_EVENT_CD_EJECT_PRESSED */
 290        KEY_F13,        /* 52 SONYPI_EVENT_MODEKEY_PRESSED */
 291        KEY_PROG4,      /* 53 SONYPI_EVENT_PKEY_P4 */
 292        KEY_F14,        /* 54 SONYPI_EVENT_PKEY_P5 */
 293        KEY_F15,        /* 55 SONYPI_EVENT_SETTINGKEY_PRESSED */
 294        KEY_VOLUMEUP,   /* 56 SONYPI_EVENT_VOLUME_INC_PRESSED */
 295        KEY_VOLUMEDOWN, /* 57 SONYPI_EVENT_VOLUME_DEC_PRESSED */
 296};
 297
 298/* release buttons after a short delay if pressed */
 299static void do_sony_laptop_release_key(struct work_struct *work)
 300{
 301        struct sony_laptop_keypress kp;
 302
 303        while (kfifo_get(sony_laptop_input.fifo, (unsigned char *)&kp,
 304                         sizeof(kp)) == sizeof(kp)) {
 305                msleep(10);
 306                input_report_key(kp.dev, kp.key, 0);
 307                input_sync(kp.dev);
 308        }
 309}
 310static DECLARE_WORK(sony_laptop_release_key_work,
 311                do_sony_laptop_release_key);
 312
 313/* forward event to the input subsystem */
 314static void sony_laptop_report_input_event(u8 event)
 315{
 316        struct input_dev *jog_dev = sony_laptop_input.jog_dev;
 317        struct input_dev *key_dev = sony_laptop_input.key_dev;
 318        struct sony_laptop_keypress kp = { NULL };
 319
 320        if (event == SONYPI_EVENT_FNKEY_RELEASED ||
 321                        event == SONYPI_EVENT_ANYBUTTON_RELEASED) {
 322                /* Nothing, not all VAIOs generate this event */
 323                return;
 324        }
 325
 326        /* report events */
 327        switch (event) {
 328        /* jog_dev events */
 329        case SONYPI_EVENT_JOGDIAL_UP:
 330        case SONYPI_EVENT_JOGDIAL_UP_PRESSED:
 331                input_report_rel(jog_dev, REL_WHEEL, 1);
 332                input_sync(jog_dev);
 333                return;
 334
 335        case SONYPI_EVENT_JOGDIAL_DOWN:
 336        case SONYPI_EVENT_JOGDIAL_DOWN_PRESSED:
 337                input_report_rel(jog_dev, REL_WHEEL, -1);
 338                input_sync(jog_dev);
 339                return;
 340
 341        /* key_dev events */
 342        case SONYPI_EVENT_JOGDIAL_PRESSED:
 343                kp.key = BTN_MIDDLE;
 344                kp.dev = jog_dev;
 345                break;
 346
 347        default:
 348                if (event >= ARRAY_SIZE(sony_laptop_input_index)) {
 349                        dprintk("sony_laptop_report_input_event, event not known: %d\n", event);
 350                        break;
 351                }
 352                if (sony_laptop_input_index[event] != -1) {
 353                        kp.key = sony_laptop_input_keycode_map[sony_laptop_input_index[event]];
 354                        if (kp.key != KEY_UNKNOWN)
 355                                kp.dev = key_dev;
 356                }
 357                break;
 358        }
 359
 360        if (kp.dev) {
 361                input_report_key(kp.dev, kp.key, 1);
 362                /* we emit the scancode so we can always remap the key */
 363                input_event(kp.dev, EV_MSC, MSC_SCAN, event);
 364                input_sync(kp.dev);
 365                kfifo_put(sony_laptop_input.fifo,
 366                          (unsigned char *)&kp, sizeof(kp));
 367
 368                if (!work_pending(&sony_laptop_release_key_work))
 369                        queue_work(sony_laptop_input.wq,
 370                                        &sony_laptop_release_key_work);
 371        } else
 372                dprintk("unknown input event %.2x\n", event);
 373}
 374
 375static int sony_laptop_setup_input(struct acpi_device *acpi_device)
 376{
 377        struct input_dev *jog_dev;
 378        struct input_dev *key_dev;
 379        int i;
 380        int error;
 381
 382        /* don't run again if already initialized */
 383        if (atomic_add_return(1, &sony_laptop_input.users) > 1)
 384                return 0;
 385
 386        /* kfifo */
 387        spin_lock_init(&sony_laptop_input.fifo_lock);
 388        sony_laptop_input.fifo =
 389                kfifo_alloc(SONY_LAPTOP_BUF_SIZE, GFP_KERNEL,
 390                            &sony_laptop_input.fifo_lock);
 391        if (IS_ERR(sony_laptop_input.fifo)) {
 392                printk(KERN_ERR DRV_PFX "kfifo_alloc failed\n");
 393                error = PTR_ERR(sony_laptop_input.fifo);
 394                goto err_dec_users;
 395        }
 396
 397        /* init workqueue */
 398        sony_laptop_input.wq = create_singlethread_workqueue("sony-laptop");
 399        if (!sony_laptop_input.wq) {
 400                printk(KERN_ERR DRV_PFX
 401                                "Unable to create workqueue.\n");
 402                error = -ENXIO;
 403                goto err_free_kfifo;
 404        }
 405
 406        /* input keys */
 407        key_dev = input_allocate_device();
 408        if (!key_dev) {
 409                error = -ENOMEM;
 410                goto err_destroy_wq;
 411        }
 412
 413        key_dev->name = "Sony Vaio Keys";
 414        key_dev->id.bustype = BUS_ISA;
 415        key_dev->id.vendor = PCI_VENDOR_ID_SONY;
 416        key_dev->dev.parent = &acpi_device->dev;
 417
 418        /* Initialize the Input Drivers: special keys */
 419        set_bit(EV_KEY, key_dev->evbit);
 420        set_bit(EV_MSC, key_dev->evbit);
 421        set_bit(MSC_SCAN, key_dev->mscbit);
 422        key_dev->keycodesize = sizeof(sony_laptop_input_keycode_map[0]);
 423        key_dev->keycodemax = ARRAY_SIZE(sony_laptop_input_keycode_map);
 424        key_dev->keycode = &sony_laptop_input_keycode_map;
 425        for (i = 0; i < ARRAY_SIZE(sony_laptop_input_keycode_map); i++) {
 426                if (sony_laptop_input_keycode_map[i] != KEY_RESERVED) {
 427                        set_bit(sony_laptop_input_keycode_map[i],
 428                                key_dev->keybit);
 429                }
 430        }
 431
 432        error = input_register_device(key_dev);
 433        if (error)
 434                goto err_free_keydev;
 435
 436        sony_laptop_input.key_dev = key_dev;
 437
 438        /* jogdial */
 439        jog_dev = input_allocate_device();
 440        if (!jog_dev) {
 441                error = -ENOMEM;
 442                goto err_unregister_keydev;
 443        }
 444
 445        jog_dev->name = "Sony Vaio Jogdial";
 446        jog_dev->id.bustype = BUS_ISA;
 447        jog_dev->id.vendor = PCI_VENDOR_ID_SONY;
 448        key_dev->dev.parent = &acpi_device->dev;
 449
 450        jog_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
 451        jog_dev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_MIDDLE);
 452        jog_dev->relbit[0] = BIT_MASK(REL_WHEEL);
 453
 454        error = input_register_device(jog_dev);
 455        if (error)
 456                goto err_free_jogdev;
 457
 458        sony_laptop_input.jog_dev = jog_dev;
 459
 460        return 0;
 461
 462err_free_jogdev:
 463        input_free_device(jog_dev);
 464
 465err_unregister_keydev:
 466        input_unregister_device(key_dev);
 467        /* to avoid kref underflow below at input_free_device */
 468        key_dev = NULL;
 469
 470err_free_keydev:
 471        input_free_device(key_dev);
 472
 473err_destroy_wq:
 474        destroy_workqueue(sony_laptop_input.wq);
 475
 476err_free_kfifo:
 477        kfifo_free(sony_laptop_input.fifo);
 478
 479err_dec_users:
 480        atomic_dec(&sony_laptop_input.users);
 481        return error;
 482}
 483
 484static void sony_laptop_remove_input(void)
 485{
 486        /* cleanup only after the last user has gone */
 487        if (!atomic_dec_and_test(&sony_laptop_input.users))
 488                return;
 489
 490        /* flush workqueue first */
 491        flush_workqueue(sony_laptop_input.wq);
 492
 493        /* destroy input devs */
 494        input_unregister_device(sony_laptop_input.key_dev);
 495        sony_laptop_input.key_dev = NULL;
 496
 497        if (sony_laptop_input.jog_dev) {
 498                input_unregister_device(sony_laptop_input.jog_dev);
 499                sony_laptop_input.jog_dev = NULL;
 500        }
 501
 502        destroy_workqueue(sony_laptop_input.wq);
 503        kfifo_free(sony_laptop_input.fifo);
 504}
 505
 506/*********** Platform Device ***********/
 507
 508static atomic_t sony_pf_users = ATOMIC_INIT(0);
 509static struct platform_driver sony_pf_driver = {
 510        .driver = {
 511                   .name = "sony-laptop",
 512                   .owner = THIS_MODULE,
 513                   }
 514};
 515static struct platform_device *sony_pf_device;
 516
 517static int sony_pf_add(void)
 518{
 519        int ret = 0;
 520
 521        /* don't run again if already initialized */
 522        if (atomic_add_return(1, &sony_pf_users) > 1)
 523                return 0;
 524
 525        ret = platform_driver_register(&sony_pf_driver);
 526        if (ret)
 527                goto out;
 528
 529        sony_pf_device = platform_device_alloc("sony-laptop", -1);
 530        if (!sony_pf_device) {
 531                ret = -ENOMEM;
 532                goto out_platform_registered;
 533        }
 534
 535        ret = platform_device_add(sony_pf_device);
 536        if (ret)
 537                goto out_platform_alloced;
 538
 539        return 0;
 540
 541      out_platform_alloced:
 542        platform_device_put(sony_pf_device);
 543        sony_pf_device = NULL;
 544      out_platform_registered:
 545        platform_driver_unregister(&sony_pf_driver);
 546      out:
 547        atomic_dec(&sony_pf_users);
 548        return ret;
 549}
 550
 551static void sony_pf_remove(void)
 552{
 553        /* deregister only after the last user has gone */
 554        if (!atomic_dec_and_test(&sony_pf_users))
 555                return;
 556
 557        platform_device_del(sony_pf_device);
 558        platform_device_put(sony_pf_device);
 559        platform_driver_unregister(&sony_pf_driver);
 560}
 561
 562/*********** SNC (SNY5001) Device ***********/
 563
 564/* the device uses 1-based values, while the backlight subsystem uses
 565   0-based values */
 566#define SONY_MAX_BRIGHTNESS     8
 567
 568#define SNC_VALIDATE_IN         0
 569#define SNC_VALIDATE_OUT        1
 570
 571static ssize_t sony_nc_sysfs_show(struct device *, struct device_attribute *,
 572                              char *);
 573static ssize_t sony_nc_sysfs_store(struct device *, struct device_attribute *,
 574                               const char *, size_t);
 575static int boolean_validate(const int, const int);
 576static int brightness_default_validate(const int, const int);
 577
 578struct sony_nc_value {
 579        char *name;             /* name of the entry */
 580        char **acpiget;         /* names of the ACPI get function */
 581        char **acpiset;         /* names of the ACPI set function */
 582        int (*validate)(const int, const int);  /* input/output validation */
 583        int value;              /* current setting */
 584        int valid;              /* Has ever been set */
 585        int debug;              /* active only in debug mode ? */
 586        struct device_attribute devattr;        /* sysfs atribute */
 587};
 588
 589#define SNC_HANDLE_NAMES(_name, _values...) \
 590        static char *snc_##_name[] = { _values, NULL }
 591
 592#define SNC_HANDLE(_name, _getters, _setters, _validate, _debug) \
 593        { \
 594                .name           = __stringify(_name), \
 595                .acpiget        = _getters, \
 596                .acpiset        = _setters, \
 597                .validate       = _validate, \
 598                .debug          = _debug, \
 599                .devattr        = __ATTR(_name, 0, sony_nc_sysfs_show, sony_nc_sysfs_store), \
 600        }
 601
 602#define SNC_HANDLE_NULL { .name = NULL }
 603
 604SNC_HANDLE_NAMES(fnkey_get, "GHKE");
 605
 606SNC_HANDLE_NAMES(brightness_def_get, "GPBR");
 607SNC_HANDLE_NAMES(brightness_def_set, "SPBR");
 608
 609SNC_HANDLE_NAMES(cdpower_get, "GCDP");
 610SNC_HANDLE_NAMES(cdpower_set, "SCDP", "CDPW");
 611
 612SNC_HANDLE_NAMES(audiopower_get, "GAZP");
 613SNC_HANDLE_NAMES(audiopower_set, "AZPW");
 614
 615SNC_HANDLE_NAMES(lanpower_get, "GLNP");
 616SNC_HANDLE_NAMES(lanpower_set, "LNPW");
 617
 618SNC_HANDLE_NAMES(lidstate_get, "GLID");
 619
 620SNC_HANDLE_NAMES(indicatorlamp_get, "GILS");
 621SNC_HANDLE_NAMES(indicatorlamp_set, "SILS");
 622
 623SNC_HANDLE_NAMES(gainbass_get, "GMGB");
 624SNC_HANDLE_NAMES(gainbass_set, "CMGB");
 625
 626SNC_HANDLE_NAMES(PID_get, "GPID");
 627
 628SNC_HANDLE_NAMES(CTR_get, "GCTR");
 629SNC_HANDLE_NAMES(CTR_set, "SCTR");
 630
 631SNC_HANDLE_NAMES(PCR_get, "GPCR");
 632SNC_HANDLE_NAMES(PCR_set, "SPCR");
 633
 634SNC_HANDLE_NAMES(CMI_get, "GCMI");
 635SNC_HANDLE_NAMES(CMI_set, "SCMI");
 636
 637static struct sony_nc_value sony_nc_values[] = {
 638        SNC_HANDLE(brightness_default, snc_brightness_def_get,
 639                        snc_brightness_def_set, brightness_default_validate, 0),
 640        SNC_HANDLE(fnkey, snc_fnkey_get, NULL, NULL, 0),
 641        SNC_HANDLE(cdpower, snc_cdpower_get, snc_cdpower_set, boolean_validate, 0),
 642        SNC_HANDLE(audiopower, snc_audiopower_get, snc_audiopower_set,
 643                        boolean_validate, 0),
 644        SNC_HANDLE(lanpower, snc_lanpower_get, snc_lanpower_set,
 645                        boolean_validate, 1),
 646        SNC_HANDLE(lidstate, snc_lidstate_get, NULL,
 647                        boolean_validate, 0),
 648        SNC_HANDLE(indicatorlamp, snc_indicatorlamp_get, snc_indicatorlamp_set,
 649                        boolean_validate, 0),
 650        SNC_HANDLE(gainbass, snc_gainbass_get, snc_gainbass_set,
 651                        boolean_validate, 0),
 652        /* unknown methods */
 653        SNC_HANDLE(PID, snc_PID_get, NULL, NULL, 1),
 654        SNC_HANDLE(CTR, snc_CTR_get, snc_CTR_set, NULL, 1),
 655        SNC_HANDLE(PCR, snc_PCR_get, snc_PCR_set, NULL, 1),
 656        SNC_HANDLE(CMI, snc_CMI_get, snc_CMI_set, NULL, 1),
 657        SNC_HANDLE_NULL
 658};
 659
 660static acpi_handle sony_nc_acpi_handle;
 661static struct acpi_device *sony_nc_acpi_device = NULL;
 662
 663/*
 664 * acpi_evaluate_object wrappers
 665 */
 666static int acpi_callgetfunc(acpi_handle handle, char *name, int *result)
 667{
 668        struct acpi_buffer output;
 669        union acpi_object out_obj;
 670        acpi_status status;
 671
 672        output.length = sizeof(out_obj);
 673        output.pointer = &out_obj;
 674
 675        status = acpi_evaluate_object(handle, name, NULL, &output);
 676        if ((status == AE_OK) && (out_obj.type == ACPI_TYPE_INTEGER)) {
 677                *result = out_obj.integer.value;
 678                return 0;
 679        }
 680
 681        printk(KERN_WARNING DRV_PFX "acpi_callreadfunc failed\n");
 682
 683        return -1;
 684}
 685
 686static int acpi_callsetfunc(acpi_handle handle, char *name, int value,
 687                            int *result)
 688{
 689        struct acpi_object_list params;
 690        union acpi_object in_obj;
 691        struct acpi_buffer output;
 692        union acpi_object out_obj;
 693        acpi_status status;
 694
 695        params.count = 1;
 696        params.pointer = &in_obj;
 697        in_obj.type = ACPI_TYPE_INTEGER;
 698        in_obj.integer.value = value;
 699
 700        output.length = sizeof(out_obj);
 701        output.pointer = &out_obj;
 702
 703        status = acpi_evaluate_object(handle, name, &params, &output);
 704        if (status == AE_OK) {
 705                if (result != NULL) {
 706                        if (out_obj.type != ACPI_TYPE_INTEGER) {
 707                                printk(KERN_WARNING DRV_PFX "acpi_evaluate_object bad "
 708                                       "return type\n");
 709                                return -1;
 710                        }
 711                        *result = out_obj.integer.value;
 712                }
 713                return 0;
 714        }
 715
 716        printk(KERN_WARNING DRV_PFX "acpi_evaluate_object failed\n");
 717
 718        return -1;
 719}
 720
 721static int sony_find_snc_handle(int handle)
 722{
 723        int i;
 724        int result;
 725
 726        for (i = 0x20; i < 0x30; i++) {
 727                acpi_callsetfunc(sony_nc_acpi_handle, "SN00", i, &result);
 728                if (result == handle)
 729                        return i-0x20;
 730        }
 731
 732        return -1;
 733}
 734
 735static int sony_call_snc_handle(int handle, int argument, int *result)
 736{
 737        int offset = sony_find_snc_handle(handle);
 738
 739        if (offset < 0)
 740                return -1;
 741
 742        return acpi_callsetfunc(sony_nc_acpi_handle, "SN07", offset | argument,
 743                                result);
 744}
 745
 746/*
 747 * sony_nc_values input/output validate functions
 748 */
 749
 750/* brightness_default_validate:
 751 *
 752 * manipulate input output values to keep consistency with the
 753 * backlight framework for which brightness values are 0-based.
 754 */
 755static int brightness_default_validate(const int direction, const int value)
 756{
 757        switch (direction) {
 758                case SNC_VALIDATE_OUT:
 759                        return value - 1;
 760                case SNC_VALIDATE_IN:
 761                        if (value >= 0 && value < SONY_MAX_BRIGHTNESS)
 762                                return value + 1;
 763        }
 764        return -EINVAL;
 765}
 766
 767/* boolean_validate:
 768 *
 769 * on input validate boolean values 0/1, on output just pass the
 770 * received value.
 771 */
 772static int boolean_validate(const int direction, const int value)
 773{
 774        if (direction == SNC_VALIDATE_IN) {
 775                if (value != 0 && value != 1)
 776                        return -EINVAL;
 777        }
 778        return value;
 779}
 780
 781/*
 782 * Sysfs show/store common to all sony_nc_values
 783 */
 784static ssize_t sony_nc_sysfs_show(struct device *dev, struct device_attribute *attr,
 785                              char *buffer)
 786{
 787        int value;
 788        struct sony_nc_value *item =
 789            container_of(attr, struct sony_nc_value, devattr);
 790
 791        if (!*item->acpiget)
 792                return -EIO;
 793
 794        if (acpi_callgetfunc(sony_nc_acpi_handle, *item->acpiget, &value) < 0)
 795                return -EIO;
 796
 797        if (item->validate)
 798                value = item->validate(SNC_VALIDATE_OUT, value);
 799
 800        return snprintf(buffer, PAGE_SIZE, "%d\n", value);
 801}
 802
 803static ssize_t sony_nc_sysfs_store(struct device *dev,
 804                               struct device_attribute *attr,
 805                               const char *buffer, size_t count)
 806{
 807        int value;
 808        struct sony_nc_value *item =
 809            container_of(attr, struct sony_nc_value, devattr);
 810
 811        if (!item->acpiset)
 812                return -EIO;
 813
 814        if (count > 31)
 815                return -EINVAL;
 816
 817        value = simple_strtoul(buffer, NULL, 10);
 818
 819        if (item->validate)
 820                value = item->validate(SNC_VALIDATE_IN, value);
 821
 822        if (value < 0)
 823                return value;
 824
 825        if (acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset, value, NULL) < 0)
 826                return -EIO;
 827        item->value = value;
 828        item->valid = 1;
 829        return count;
 830}
 831
 832
 833/*
 834 * Backlight device
 835 */
 836static int sony_backlight_update_status(struct backlight_device *bd)
 837{
 838        return acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
 839                                bd->props.brightness + 1, NULL);
 840}
 841
 842static int sony_backlight_get_brightness(struct backlight_device *bd)
 843{
 844        int value;
 845
 846        if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value))
 847                return 0;
 848        /* brightness levels are 1-based, while backlight ones are 0-based */
 849        return value - 1;
 850}
 851
 852static struct backlight_device *sony_backlight_device;
 853static struct backlight_ops sony_backlight_ops = {
 854        .update_status = sony_backlight_update_status,
 855        .get_brightness = sony_backlight_get_brightness,
 856};
 857
 858/*
 859 * New SNC-only Vaios event mapping to driver known keys
 860 */
 861struct sony_nc_event {
 862        u8      data;
 863        u8      event;
 864};
 865
 866static struct sony_nc_event sony_100_events[] = {
 867        { 0x90, SONYPI_EVENT_PKEY_P1 },
 868        { 0x10, SONYPI_EVENT_ANYBUTTON_RELEASED },
 869        { 0x91, SONYPI_EVENT_PKEY_P2 },
 870        { 0x11, SONYPI_EVENT_ANYBUTTON_RELEASED },
 871        { 0x81, SONYPI_EVENT_FNKEY_F1 },
 872        { 0x01, SONYPI_EVENT_FNKEY_RELEASED },
 873        { 0x82, SONYPI_EVENT_FNKEY_F2 },
 874        { 0x02, SONYPI_EVENT_FNKEY_RELEASED },
 875        { 0x83, SONYPI_EVENT_FNKEY_F3 },
 876        { 0x03, SONYPI_EVENT_FNKEY_RELEASED },
 877        { 0x84, SONYPI_EVENT_FNKEY_F4 },
 878        { 0x04, SONYPI_EVENT_FNKEY_RELEASED },
 879        { 0x85, SONYPI_EVENT_FNKEY_F5 },
 880        { 0x05, SONYPI_EVENT_FNKEY_RELEASED },
 881        { 0x86, SONYPI_EVENT_FNKEY_F6 },
 882        { 0x06, SONYPI_EVENT_FNKEY_RELEASED },
 883        { 0x87, SONYPI_EVENT_FNKEY_F7 },
 884        { 0x07, SONYPI_EVENT_FNKEY_RELEASED },
 885        { 0x89, SONYPI_EVENT_FNKEY_F9 },
 886        { 0x09, SONYPI_EVENT_FNKEY_RELEASED },
 887        { 0x8A, SONYPI_EVENT_FNKEY_F10 },
 888        { 0x0A, SONYPI_EVENT_FNKEY_RELEASED },
 889        { 0x8C, SONYPI_EVENT_FNKEY_F12 },
 890        { 0x0C, SONYPI_EVENT_FNKEY_RELEASED },
 891        { 0x9f, SONYPI_EVENT_CD_EJECT_PRESSED },
 892        { 0x1f, SONYPI_EVENT_ANYBUTTON_RELEASED },
 893        { 0, 0 },
 894};
 895
 896static struct sony_nc_event sony_127_events[] = {
 897        { 0x81, SONYPI_EVENT_MODEKEY_PRESSED },
 898        { 0x01, SONYPI_EVENT_ANYBUTTON_RELEASED },
 899        { 0x82, SONYPI_EVENT_PKEY_P1 },
 900        { 0x02, SONYPI_EVENT_ANYBUTTON_RELEASED },
 901        { 0x83, SONYPI_EVENT_PKEY_P2 },
 902        { 0x03, SONYPI_EVENT_ANYBUTTON_RELEASED },
 903        { 0x84, SONYPI_EVENT_PKEY_P3 },
 904        { 0x04, SONYPI_EVENT_ANYBUTTON_RELEASED },
 905        { 0x85, SONYPI_EVENT_PKEY_P4 },
 906        { 0x05, SONYPI_EVENT_ANYBUTTON_RELEASED },
 907        { 0x86, SONYPI_EVENT_PKEY_P5 },
 908        { 0x06, SONYPI_EVENT_ANYBUTTON_RELEASED },
 909        { 0x87, SONYPI_EVENT_SETTINGKEY_PRESSED },
 910        { 0x07, SONYPI_EVENT_ANYBUTTON_RELEASED },
 911        { 0, 0 },
 912};
 913
 914/*
 915 * ACPI callbacks
 916 */
 917static void sony_nc_notify(struct acpi_device *device, u32 event)
 918{
 919        u32 ev = event;
 920
 921        if (ev >= 0x90) {
 922                /* New-style event */
 923                int result;
 924                int key_handle = 0;
 925                ev -= 0x90;
 926
 927                if (sony_find_snc_handle(0x100) == ev)
 928                        key_handle = 0x100;
 929                if (sony_find_snc_handle(0x127) == ev)
 930                        key_handle = 0x127;
 931
 932                if (key_handle) {
 933                        struct sony_nc_event *key_event;
 934
 935                        if (sony_call_snc_handle(key_handle, 0x200, &result)) {
 936                                dprintk("sony_nc_notify, unable to decode"
 937                                        " event 0x%.2x 0x%.2x\n", key_handle,
 938                                        ev);
 939                                /* restore the original event */
 940                                ev = event;
 941                        } else {
 942                                ev = result & 0xFF;
 943
 944                                if (key_handle == 0x100)
 945                                        key_event = sony_100_events;
 946                                else
 947                                        key_event = sony_127_events;
 948
 949                                for (; key_event->data; key_event++) {
 950                                        if (key_event->data == ev) {
 951                                                ev = key_event->event;
 952                                                break;
 953                                        }
 954                                }
 955
 956                                if (!key_event->data)
 957                                        printk(KERN_INFO DRV_PFX
 958                                                        "Unknown event: 0x%x 0x%x\n",
 959                                                        key_handle,
 960                                                        ev);
 961                                else
 962                                        sony_laptop_report_input_event(ev);
 963                        }
 964                } else if (sony_find_snc_handle(0x124) == ev) {
 965                        sony_nc_rfkill_update();
 966                        return;
 967                }
 968        } else
 969                sony_laptop_report_input_event(ev);
 970
 971        dprintk("sony_nc_notify, event: 0x%.2x\n", ev);
 972        acpi_bus_generate_proc_event(sony_nc_acpi_device, 1, ev);
 973}
 974
 975static acpi_status sony_walk_callback(acpi_handle handle, u32 level,
 976                                      void *context, void **return_value)
 977{
 978        struct acpi_device_info *info;
 979
 980        if (ACPI_SUCCESS(acpi_get_object_info(handle, &info))) {
 981                printk(KERN_WARNING DRV_PFX "method: name: %4.4s, args %X\n",
 982                        (char *)&info->name, info->param_count);
 983
 984                kfree(info);
 985        }
 986
 987        return AE_OK;
 988}
 989
 990/*
 991 * ACPI device
 992 */
 993static int sony_nc_function_setup(struct acpi_device *device)
 994{
 995        int result;
 996
 997        /* Enable all events */
 998        acpi_callsetfunc(sony_nc_acpi_handle, "SN02", 0xffff, &result);
 999
1000        /* Setup hotkeys */
1001        sony_call_snc_handle(0x0100, 0, &result);
1002        sony_call_snc_handle(0x0101, 0, &result);
1003        sony_call_snc_handle(0x0102, 0x100, &result);
1004        sony_call_snc_handle(0x0127, 0, &result);
1005
1006        return 0;
1007}
1008
1009static int sony_nc_resume(struct acpi_device *device)
1010{
1011        struct sony_nc_value *item;
1012        acpi_handle handle;
1013
1014        for (item = sony_nc_values; item->name; item++) {
1015                int ret;
1016
1017                if (!item->valid)
1018                        continue;
1019                ret = acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset,
1020                                       item->value, NULL);
1021                if (ret < 0) {
1022                        printk("%s: %d\n", __func__, ret);
1023                        break;
1024                }
1025        }
1026
1027        if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "ECON",
1028                                         &handle))) {
1029                if (acpi_callsetfunc(sony_nc_acpi_handle, "ECON", 1, NULL))
1030                        dprintk("ECON Method failed\n");
1031        }
1032
1033        if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "SN00",
1034                                         &handle))) {
1035                dprintk("Doing SNC setup\n");
1036                sony_nc_function_setup(device);
1037        }
1038
1039        /* set the last requested brightness level */
1040        if (sony_backlight_device &&
1041                        sony_backlight_update_status(sony_backlight_device) < 0)
1042                printk(KERN_WARNING DRV_PFX "unable to restore brightness level\n");
1043
1044        /* re-read rfkill state */
1045        sony_nc_rfkill_update();
1046
1047        return 0;
1048}
1049
1050static void sony_nc_rfkill_cleanup(void)
1051{
1052        int i;
1053
1054        for (i = 0; i < N_SONY_RFKILL; i++) {
1055                if (sony_rfkill_devices[i]) {
1056                        rfkill_unregister(sony_rfkill_devices[i]);
1057                        rfkill_destroy(sony_rfkill_devices[i]);
1058                }
1059        }
1060}
1061
1062static int sony_nc_rfkill_set(void *data, bool blocked)
1063{
1064        int result;
1065        int argument = sony_rfkill_address[(long) data] + 0x100;
1066
1067        if (!blocked)
1068                argument |= 0xff0000;
1069
1070        return sony_call_snc_handle(0x124, argument, &result);
1071}
1072
1073static const struct rfkill_ops sony_rfkill_ops = {
1074        .set_block = sony_nc_rfkill_set,
1075};
1076
1077static int sony_nc_setup_rfkill(struct acpi_device *device,
1078                                enum sony_nc_rfkill nc_type)
1079{
1080        int err = 0;
1081        struct rfkill *rfk;
1082        enum rfkill_type type;
1083        const char *name;
1084        int result;
1085        bool hwblock;
1086
1087        switch (nc_type) {
1088        case SONY_WIFI:
1089                type = RFKILL_TYPE_WLAN;
1090                name = "sony-wifi";
1091                break;
1092        case SONY_BLUETOOTH:
1093                type = RFKILL_TYPE_BLUETOOTH;
1094                name = "sony-bluetooth";
1095                break;
1096        case SONY_WWAN:
1097                type = RFKILL_TYPE_WWAN;
1098                name = "sony-wwan";
1099                break;
1100        case SONY_WIMAX:
1101                type = RFKILL_TYPE_WIMAX;
1102                name = "sony-wimax";
1103                break;
1104        default:
1105                return -EINVAL;
1106        }
1107
1108        rfk = rfkill_alloc(name, &device->dev, type,
1109                           &sony_rfkill_ops, (void *)nc_type);
1110        if (!rfk)
1111                return -ENOMEM;
1112
1113        sony_call_snc_handle(0x124, 0x200, &result);
1114        hwblock = !(result & 0x1);
1115        rfkill_set_hw_state(rfk, hwblock);
1116
1117        err = rfkill_register(rfk);
1118        if (err) {
1119                rfkill_destroy(rfk);
1120                return err;
1121        }
1122        sony_rfkill_devices[nc_type] = rfk;
1123        return err;
1124}
1125
1126static void sony_nc_rfkill_update()
1127{
1128        enum sony_nc_rfkill i;
1129        int result;
1130        bool hwblock;
1131
1132        sony_call_snc_handle(0x124, 0x200, &result);
1133        hwblock = !(result & 0x1);
1134
1135        for (i = 0; i < N_SONY_RFKILL; i++) {
1136                int argument = sony_rfkill_address[i];
1137
1138                if (!sony_rfkill_devices[i])
1139                        continue;
1140
1141                if (hwblock) {
1142                        if (rfkill_set_hw_state(sony_rfkill_devices[i], true)) {
1143                                /* we already know we're blocked */
1144                        }
1145                        continue;
1146                }
1147
1148                sony_call_snc_handle(0x124, argument, &result);
1149                rfkill_set_states(sony_rfkill_devices[i],
1150                                  !(result & 0xf), false);
1151        }
1152}
1153
1154static int sony_nc_rfkill_setup(struct acpi_device *device)
1155{
1156        int result, ret;
1157
1158        if (sony_find_snc_handle(0x124) == -1)
1159                return -1;
1160
1161        ret = sony_call_snc_handle(0x124, 0xb00, &result);
1162        if (ret) {
1163                printk(KERN_INFO DRV_PFX
1164                       "Unable to enumerate rfkill devices: %x\n", ret);
1165                return ret;
1166        }
1167
1168        if (result & 0x1)
1169                sony_nc_setup_rfkill(device, SONY_WIFI);
1170        if (result & 0x2)
1171                sony_nc_setup_rfkill(device, SONY_BLUETOOTH);
1172        if (result & 0x1c)
1173                sony_nc_setup_rfkill(device, SONY_WWAN);
1174        if (result & 0x20)
1175                sony_nc_setup_rfkill(device, SONY_WIMAX);
1176
1177        return 0;
1178}
1179
1180static int sony_nc_add(struct acpi_device *device)
1181{
1182        acpi_status status;
1183        int result = 0;
1184        acpi_handle handle;
1185        struct sony_nc_value *item;
1186
1187        printk(KERN_INFO DRV_PFX "%s v%s.\n",
1188                SONY_NC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
1189
1190        sony_nc_acpi_device = device;
1191        strcpy(acpi_device_class(device), "sony/hotkey");
1192
1193        sony_nc_acpi_handle = device->handle;
1194
1195        /* read device status */
1196        result = acpi_bus_get_status(device);
1197        /* bail IFF the above call was successful and the device is not present */
1198        if (!result && !device->status.present) {
1199                dprintk("Device not present\n");
1200                result = -ENODEV;
1201                goto outwalk;
1202        }
1203
1204        if (debug) {
1205                status = acpi_walk_namespace(ACPI_TYPE_METHOD, sony_nc_acpi_handle,
1206                                             1, sony_walk_callback, NULL, NULL);
1207                if (ACPI_FAILURE(status)) {
1208                        printk(KERN_WARNING DRV_PFX "unable to walk acpi resources\n");
1209                        result = -ENODEV;
1210                        goto outwalk;
1211                }
1212        }
1213
1214        if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "ECON",
1215                                         &handle))) {
1216                if (acpi_callsetfunc(sony_nc_acpi_handle, "ECON", 1, NULL))
1217                        dprintk("ECON Method failed\n");
1218        }
1219
1220        if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "SN00",
1221                                         &handle))) {
1222                dprintk("Doing SNC setup\n");
1223                sony_nc_function_setup(device);
1224                sony_nc_rfkill_setup(device);
1225        }
1226
1227        /* setup input devices and helper fifo */
1228        result = sony_laptop_setup_input(device);
1229        if (result) {
1230                printk(KERN_ERR DRV_PFX
1231                                "Unable to create input devices.\n");
1232                goto outwalk;
1233        }
1234
1235        if (acpi_video_backlight_support()) {
1236                printk(KERN_INFO DRV_PFX "brightness ignored, must be "
1237                       "controlled by ACPI video driver\n");
1238        } else if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT",
1239                                                &handle))) {
1240                sony_backlight_device = backlight_device_register("sony", NULL,
1241                                                                  NULL,
1242                                                                  &sony_backlight_ops);
1243
1244                if (IS_ERR(sony_backlight_device)) {
1245                        printk(KERN_WARNING DRV_PFX "unable to register backlight device\n");
1246                        sony_backlight_device = NULL;
1247                } else {
1248                        sony_backlight_device->props.brightness =
1249                            sony_backlight_get_brightness
1250                            (sony_backlight_device);
1251                        sony_backlight_device->props.max_brightness =
1252                            SONY_MAX_BRIGHTNESS - 1;
1253                }
1254
1255        }
1256
1257        result = sony_pf_add();
1258        if (result)
1259                goto outbacklight;
1260
1261        /* create sony_pf sysfs attributes related to the SNC device */
1262        for (item = sony_nc_values; item->name; ++item) {
1263
1264                if (!debug && item->debug)
1265                        continue;
1266
1267                /* find the available acpiget as described in the DSDT */
1268                for (; item->acpiget && *item->acpiget; ++item->acpiget) {
1269                        if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
1270                                                         *item->acpiget,
1271                                                         &handle))) {
1272                                dprintk("Found %s getter: %s\n",
1273                                                item->name, *item->acpiget);
1274                                item->devattr.attr.mode |= S_IRUGO;
1275                                break;
1276                        }
1277                }
1278
1279                /* find the available acpiset as described in the DSDT */
1280                for (; item->acpiset && *item->acpiset; ++item->acpiset) {
1281                        if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
1282                                                         *item->acpiset,
1283                                                         &handle))) {
1284                                dprintk("Found %s setter: %s\n",
1285                                                item->name, *item->acpiset);
1286                                item->devattr.attr.mode |= S_IWUSR;
1287                                break;
1288                        }
1289                }
1290
1291                if (item->devattr.attr.mode != 0) {
1292                        result =
1293                            device_create_file(&sony_pf_device->dev,
1294                                               &item->devattr);
1295                        if (result)
1296                                goto out_sysfs;
1297                }
1298        }
1299
1300        return 0;
1301
1302      out_sysfs:
1303        for (item = sony_nc_values; item->name; ++item) {
1304                device_remove_file(&sony_pf_device->dev, &item->devattr);
1305        }
1306        sony_pf_remove();
1307
1308      outbacklight:
1309        if (sony_backlight_device)
1310                backlight_device_unregister(sony_backlight_device);
1311
1312        sony_laptop_remove_input();
1313
1314      outwalk:
1315        sony_nc_rfkill_cleanup();
1316        return result;
1317}
1318
1319static int sony_nc_remove(struct acpi_device *device, int type)
1320{
1321        struct sony_nc_value *item;
1322
1323        if (sony_backlight_device)
1324                backlight_device_unregister(sony_backlight_device);
1325
1326        sony_nc_acpi_device = NULL;
1327
1328        for (item = sony_nc_values; item->name; ++item) {
1329                device_remove_file(&sony_pf_device->dev, &item->devattr);
1330        }
1331
1332        sony_pf_remove();
1333        sony_laptop_remove_input();
1334        sony_nc_rfkill_cleanup();
1335        dprintk(SONY_NC_DRIVER_NAME " removed.\n");
1336
1337        return 0;
1338}
1339
1340static const struct acpi_device_id sony_device_ids[] = {
1341        {SONY_NC_HID, 0},
1342        {SONY_PIC_HID, 0},
1343        {"", 0},
1344};
1345MODULE_DEVICE_TABLE(acpi, sony_device_ids);
1346
1347static const struct acpi_device_id sony_nc_device_ids[] = {
1348        {SONY_NC_HID, 0},
1349        {"", 0},
1350};
1351
1352static struct acpi_driver sony_nc_driver = {
1353        .name = SONY_NC_DRIVER_NAME,
1354        .class = SONY_NC_CLASS,
1355        .ids = sony_nc_device_ids,
1356        .owner = THIS_MODULE,
1357        .ops = {
1358                .add = sony_nc_add,
1359                .remove = sony_nc_remove,
1360                .resume = sony_nc_resume,
1361                .notify = sony_nc_notify,
1362                },
1363};
1364
1365/*********** SPIC (SNY6001) Device ***********/
1366
1367#define SONYPI_DEVICE_TYPE1     0x00000001
1368#define SONYPI_DEVICE_TYPE2     0x00000002
1369#define SONYPI_DEVICE_TYPE3     0x00000004
1370#define SONYPI_DEVICE_TYPE4     0x00000008
1371
1372#define SONYPI_TYPE1_OFFSET     0x04
1373#define SONYPI_TYPE2_OFFSET     0x12
1374#define SONYPI_TYPE3_OFFSET     0x12
1375
1376struct sony_pic_ioport {
1377        struct acpi_resource_io io1;
1378        struct acpi_resource_io io2;
1379        struct list_head        list;
1380};
1381
1382struct sony_pic_irq {
1383        struct acpi_resource_irq        irq;
1384        struct list_head                list;
1385};
1386
1387struct sonypi_eventtypes {
1388        u8                      data;
1389        unsigned long           mask;
1390        struct sonypi_event     *events;
1391};
1392
1393struct sony_pic_dev {
1394        struct acpi_device              *acpi_dev;
1395        struct sony_pic_irq             *cur_irq;
1396        struct sony_pic_ioport          *cur_ioport;
1397        struct list_head                interrupts;
1398        struct list_head                ioports;
1399        struct mutex                    lock;
1400        struct sonypi_eventtypes        *event_types;
1401        int                             (*handle_irq)(const u8, const u8);
1402        int                             model;
1403        u16                             evport_offset;
1404        u8                              camera_power;
1405        u8                              bluetooth_power;
1406        u8                              wwan_power;
1407};
1408
1409static struct sony_pic_dev spic_dev = {
1410        .interrupts     = LIST_HEAD_INIT(spic_dev.interrupts),
1411        .ioports        = LIST_HEAD_INIT(spic_dev.ioports),
1412};
1413
1414static int spic_drv_registered;
1415
1416/* Event masks */
1417#define SONYPI_JOGGER_MASK                      0x00000001
1418#define SONYPI_CAPTURE_MASK                     0x00000002
1419#define SONYPI_FNKEY_MASK                       0x00000004
1420#define SONYPI_BLUETOOTH_MASK                   0x00000008
1421#define SONYPI_PKEY_MASK                        0x00000010
1422#define SONYPI_BACK_MASK                        0x00000020
1423#define SONYPI_HELP_MASK                        0x00000040
1424#define SONYPI_LID_MASK                         0x00000080
1425#define SONYPI_ZOOM_MASK                        0x00000100
1426#define SONYPI_THUMBPHRASE_MASK                 0x00000200
1427#define SONYPI_MEYE_MASK                        0x00000400
1428#define SONYPI_MEMORYSTICK_MASK                 0x00000800
1429#define SONYPI_BATTERY_MASK                     0x00001000
1430#define SONYPI_WIRELESS_MASK                    0x00002000
1431
1432struct sonypi_event {
1433        u8      data;
1434        u8      event;
1435};
1436
1437/* The set of possible button release events */
1438static struct sonypi_event sonypi_releaseev[] = {
1439        { 0x00, SONYPI_EVENT_ANYBUTTON_RELEASED },
1440        { 0, 0 }
1441};
1442
1443/* The set of possible jogger events  */
1444static struct sonypi_event sonypi_joggerev[] = {
1445        { 0x1f, SONYPI_EVENT_JOGDIAL_UP },
1446        { 0x01, SONYPI_EVENT_JOGDIAL_DOWN },
1447        { 0x5f, SONYPI_EVENT_JOGDIAL_UP_PRESSED },
1448        { 0x41, SONYPI_EVENT_JOGDIAL_DOWN_PRESSED },
1449        { 0x1e, SONYPI_EVENT_JOGDIAL_FAST_UP },
1450        { 0x02, SONYPI_EVENT_JOGDIAL_FAST_DOWN },
1451        { 0x5e, SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED },
1452        { 0x42, SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED },
1453        { 0x1d, SONYPI_EVENT_JOGDIAL_VFAST_UP },
1454        { 0x03, SONYPI_EVENT_JOGDIAL_VFAST_DOWN },
1455        { 0x5d, SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED },
1456        { 0x43, SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED },
1457        { 0x40, SONYPI_EVENT_JOGDIAL_PRESSED },
1458        { 0, 0 }
1459};
1460
1461/* The set of possible capture button events */
1462static struct sonypi_event sonypi_captureev[] = {
1463        { 0x05, SONYPI_EVENT_CAPTURE_PARTIALPRESSED },
1464        { 0x07, SONYPI_EVENT_CAPTURE_PRESSED },
1465        { 0x40, SONYPI_EVENT_CAPTURE_PRESSED },
1466        { 0x01, SONYPI_EVENT_CAPTURE_PARTIALRELEASED },
1467        { 0, 0 }
1468};
1469
1470/* The set of possible fnkeys events */
1471static struct sonypi_event sonypi_fnkeyev[] = {
1472        { 0x10, SONYPI_EVENT_FNKEY_ESC },
1473        { 0x11, SONYPI_EVENT_FNKEY_F1 },
1474        { 0x12, SONYPI_EVENT_FNKEY_F2 },
1475        { 0x13, SONYPI_EVENT_FNKEY_F3 },
1476        { 0x14, SONYPI_EVENT_FNKEY_F4 },
1477        { 0x15, SONYPI_EVENT_FNKEY_F5 },
1478        { 0x16, SONYPI_EVENT_FNKEY_F6 },
1479        { 0x17, SONYPI_EVENT_FNKEY_F7 },
1480        { 0x18, SONYPI_EVENT_FNKEY_F8 },
1481        { 0x19, SONYPI_EVENT_FNKEY_F9 },
1482        { 0x1a, SONYPI_EVENT_FNKEY_F10 },
1483        { 0x1b, SONYPI_EVENT_FNKEY_F11 },
1484        { 0x1c, SONYPI_EVENT_FNKEY_F12 },
1485        { 0x1f, SONYPI_EVENT_FNKEY_RELEASED },
1486        { 0x21, SONYPI_EVENT_FNKEY_1 },
1487        { 0x22, SONYPI_EVENT_FNKEY_2 },
1488        { 0x31, SONYPI_EVENT_FNKEY_D },
1489        { 0x32, SONYPI_EVENT_FNKEY_E },
1490        { 0x33, SONYPI_EVENT_FNKEY_F },
1491        { 0x34, SONYPI_EVENT_FNKEY_S },
1492        { 0x35, SONYPI_EVENT_FNKEY_B },
1493        { 0x36, SONYPI_EVENT_FNKEY_ONLY },
1494        { 0, 0 }
1495};
1496
1497/* The set of possible program key events */
1498static struct sonypi_event sonypi_pkeyev[] = {
1499        { 0x01, SONYPI_EVENT_PKEY_P1 },
1500        { 0x02, SONYPI_EVENT_PKEY_P2 },
1501        { 0x04, SONYPI_EVENT_PKEY_P3 },
1502        { 0x20, SONYPI_EVENT_PKEY_P1 },
1503        { 0, 0 }
1504};
1505
1506/* The set of possible bluetooth events */
1507static struct sonypi_event sonypi_blueev[] = {
1508        { 0x55, SONYPI_EVENT_BLUETOOTH_PRESSED },
1509        { 0x59, SONYPI_EVENT_BLUETOOTH_ON },
1510        { 0x5a, SONYPI_EVENT_BLUETOOTH_OFF },
1511        { 0, 0 }
1512};
1513
1514/* The set of possible wireless events */
1515static struct sonypi_event sonypi_wlessev[] = {
1516        { 0x59, SONYPI_EVENT_WIRELESS_ON },
1517        { 0x5a, SONYPI_EVENT_WIRELESS_OFF },
1518        { 0, 0 }
1519};
1520
1521/* The set of possible back button events */
1522static struct sonypi_event sonypi_backev[] = {
1523        { 0x20, SONYPI_EVENT_BACK_PRESSED },
1524        { 0, 0 }
1525};
1526
1527/* The set of possible help button events */
1528static struct sonypi_event sonypi_helpev[] = {
1529        { 0x3b, SONYPI_EVENT_HELP_PRESSED },
1530        { 0, 0 }
1531};
1532
1533
1534/* The set of possible lid events */
1535static struct sonypi_event sonypi_lidev[] = {
1536        { 0x51, SONYPI_EVENT_LID_CLOSED },
1537        { 0x50, SONYPI_EVENT_LID_OPENED },
1538        { 0, 0 }
1539};
1540
1541/* The set of possible zoom events */
1542static struct sonypi_event sonypi_zoomev[] = {
1543        { 0x39, SONYPI_EVENT_ZOOM_PRESSED },
1544        { 0x10, SONYPI_EVENT_ZOOM_IN_PRESSED },
1545        { 0x20, SONYPI_EVENT_ZOOM_OUT_PRESSED },
1546        { 0x04, SONYPI_EVENT_ZOOM_PRESSED },
1547        { 0, 0 }
1548};
1549
1550/* The set of possible thumbphrase events */
1551static struct sonypi_event sonypi_thumbphraseev[] = {
1552        { 0x3a, SONYPI_EVENT_THUMBPHRASE_PRESSED },
1553        { 0, 0 }
1554};
1555
1556/* The set of possible motioneye camera events */
1557static struct sonypi_event sonypi_meyeev[] = {
1558        { 0x00, SONYPI_EVENT_MEYE_FACE },
1559        { 0x01, SONYPI_EVENT_MEYE_OPPOSITE },
1560        { 0, 0 }
1561};
1562
1563/* The set of possible memorystick events */
1564static struct sonypi_event sonypi_memorystickev[] = {
1565        { 0x53, SONYPI_EVENT_MEMORYSTICK_INSERT },
1566        { 0x54, SONYPI_EVENT_MEMORYSTICK_EJECT },
1567        { 0, 0 }
1568};
1569
1570/* The set of possible battery events */
1571static struct sonypi_event sonypi_batteryev[] = {
1572        { 0x20, SONYPI_EVENT_BATTERY_INSERT },
1573        { 0x30, SONYPI_EVENT_BATTERY_REMOVE },
1574        { 0, 0 }
1575};
1576
1577/* The set of possible volume events */
1578static struct sonypi_event sonypi_volumeev[] = {
1579        { 0x01, SONYPI_EVENT_VOLUME_INC_PRESSED },
1580        { 0x02, SONYPI_EVENT_VOLUME_DEC_PRESSED },
1581        { 0, 0 }
1582};
1583
1584/* The set of possible brightness events */
1585static struct sonypi_event sonypi_brightnessev[] = {
1586        { 0x80, SONYPI_EVENT_BRIGHTNESS_PRESSED },
1587        { 0, 0 }
1588};
1589
1590static struct sonypi_eventtypes type1_events[] = {
1591        { 0, 0xffffffff, sonypi_releaseev },
1592        { 0x70, SONYPI_MEYE_MASK, sonypi_meyeev },
1593        { 0x30, SONYPI_LID_MASK, sonypi_lidev },
1594        { 0x60, SONYPI_CAPTURE_MASK, sonypi_captureev },
1595        { 0x10, SONYPI_JOGGER_MASK, sonypi_joggerev },
1596        { 0x20, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1597        { 0x30, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
1598        { 0x40, SONYPI_PKEY_MASK, sonypi_pkeyev },
1599        { 0x30, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1600        { 0x40, SONYPI_BATTERY_MASK, sonypi_batteryev },
1601        { 0 },
1602};
1603static struct sonypi_eventtypes type2_events[] = {
1604        { 0, 0xffffffff, sonypi_releaseev },
1605        { 0x38, SONYPI_LID_MASK, sonypi_lidev },
1606        { 0x11, SONYPI_JOGGER_MASK, sonypi_joggerev },
1607        { 0x61, SONYPI_CAPTURE_MASK, sonypi_captureev },
1608        { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1609        { 0x31, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
1610        { 0x08, SONYPI_PKEY_MASK, sonypi_pkeyev },
1611        { 0x11, SONYPI_BACK_MASK, sonypi_backev },
1612        { 0x21, SONYPI_HELP_MASK, sonypi_helpev },
1613        { 0x21, SONYPI_ZOOM_MASK, sonypi_zoomev },
1614        { 0x20, SONYPI_THUMBPHRASE_MASK, sonypi_thumbphraseev },
1615        { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1616        { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
1617        { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
1618        { 0 },
1619};
1620static struct sonypi_eventtypes type3_events[] = {
1621        { 0, 0xffffffff, sonypi_releaseev },
1622        { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1623        { 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
1624        { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1625        { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
1626        { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
1627        { 0x05, SONYPI_PKEY_MASK, sonypi_pkeyev },
1628        { 0x05, SONYPI_ZOOM_MASK, sonypi_zoomev },
1629        { 0x05, SONYPI_CAPTURE_MASK, sonypi_captureev },
1630        { 0x05, SONYPI_PKEY_MASK, sonypi_volumeev },
1631        { 0x05, SONYPI_PKEY_MASK, sonypi_brightnessev },
1632        { 0 },
1633};
1634
1635/* low level spic calls */
1636#define ITERATIONS_LONG         10000
1637#define ITERATIONS_SHORT        10
1638#define wait_on_command(command, iterations) {                          \
1639        unsigned int n = iterations;                                    \
1640        while (--n && (command))                                        \
1641                udelay(1);                                              \
1642        if (!n)                                                         \
1643                dprintk("command failed at %s : %s (line %d)\n",        \
1644                                __FILE__, __func__, __LINE__);  \
1645}
1646
1647static u8 sony_pic_call1(u8 dev)
1648{
1649        u8 v1, v2;
1650
1651        wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
1652                        ITERATIONS_LONG);
1653        outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
1654        v1 = inb_p(spic_dev.cur_ioport->io1.minimum + 4);
1655        v2 = inb_p(spic_dev.cur_ioport->io1.minimum);
1656        dprintk("sony_pic_call1(0x%.2x): 0x%.4x\n", dev, (v2 << 8) | v1);
1657        return v2;
1658}
1659
1660static u8 sony_pic_call2(u8 dev, u8 fn)
1661{
1662        u8 v1;
1663
1664        wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
1665                        ITERATIONS_LONG);
1666        outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
1667        wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
1668                        ITERATIONS_LONG);
1669        outb(fn, spic_dev.cur_ioport->io1.minimum);
1670        v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
1671        dprintk("sony_pic_call2(0x%.2x - 0x%.2x): 0x%.4x\n", dev, fn, v1);
1672        return v1;
1673}
1674
1675static u8 sony_pic_call3(u8 dev, u8 fn, u8 v)
1676{
1677        u8 v1;
1678
1679        wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
1680        outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
1681        wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
1682        outb(fn, spic_dev.cur_ioport->io1.minimum);
1683        wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
1684        outb(v, spic_dev.cur_ioport->io1.minimum);
1685        v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
1686        dprintk("sony_pic_call3(0x%.2x - 0x%.2x - 0x%.2x): 0x%.4x\n",
1687                        dev, fn, v, v1);
1688        return v1;
1689}
1690
1691/*
1692 * minidrivers for SPIC models
1693 */
1694static int type3_handle_irq(const u8 data_mask, const u8 ev)
1695{
1696        /*
1697         * 0x31 could mean we have to take some extra action and wait for
1698         * the next irq for some Type3 models, it will generate a new
1699         * irq and we can read new data from the device:
1700         *  - 0x5c and 0x5f requires 0xA0
1701         *  - 0x61 requires 0xB3
1702         */
1703        if (data_mask == 0x31) {
1704                if (ev == 0x5c || ev == 0x5f)
1705                        sony_pic_call1(0xA0);
1706                else if (ev == 0x61)
1707                        sony_pic_call1(0xB3);
1708                return 0;
1709        }
1710        return 1;
1711}
1712
1713static void sony_pic_detect_device_type(struct sony_pic_dev *dev)
1714{
1715        struct pci_dev *pcidev;
1716
1717        pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1718                        PCI_DEVICE_ID_INTEL_82371AB_3, NULL);
1719        if (pcidev) {
1720                dev->model = SONYPI_DEVICE_TYPE1;
1721                dev->evport_offset = SONYPI_TYPE1_OFFSET;
1722                dev->event_types = type1_events;
1723                goto out;
1724        }
1725
1726        pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1727                        PCI_DEVICE_ID_INTEL_ICH6_1, NULL);
1728        if (pcidev) {
1729                dev->model = SONYPI_DEVICE_TYPE2;
1730                dev->evport_offset = SONYPI_TYPE2_OFFSET;
1731                dev->event_types = type2_events;
1732                goto out;
1733        }
1734
1735        pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1736                        PCI_DEVICE_ID_INTEL_ICH7_1, NULL);
1737        if (pcidev) {
1738                dev->model = SONYPI_DEVICE_TYPE3;
1739                dev->handle_irq = type3_handle_irq;
1740                dev->evport_offset = SONYPI_TYPE3_OFFSET;
1741                dev->event_types = type3_events;
1742                goto out;
1743        }
1744
1745        pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1746                        PCI_DEVICE_ID_INTEL_ICH8_4, NULL);
1747        if (pcidev) {
1748                dev->model = SONYPI_DEVICE_TYPE3;
1749                dev->handle_irq = type3_handle_irq;
1750                dev->evport_offset = SONYPI_TYPE3_OFFSET;
1751                dev->event_types = type3_events;
1752                goto out;
1753        }
1754
1755        pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1756                        PCI_DEVICE_ID_INTEL_ICH9_1, NULL);
1757        if (pcidev) {
1758                dev->model = SONYPI_DEVICE_TYPE3;
1759                dev->handle_irq = type3_handle_irq;
1760                dev->evport_offset = SONYPI_TYPE3_OFFSET;
1761                dev->event_types = type3_events;
1762                goto out;
1763        }
1764
1765        /* default */
1766        dev->model = SONYPI_DEVICE_TYPE2;
1767        dev->evport_offset = SONYPI_TYPE2_OFFSET;
1768        dev->event_types = type2_events;
1769
1770out:
1771        if (pcidev)
1772                pci_dev_put(pcidev);
1773
1774        printk(KERN_INFO DRV_PFX "detected Type%d model\n",
1775                        dev->model == SONYPI_DEVICE_TYPE1 ? 1 :
1776                        dev->model == SONYPI_DEVICE_TYPE2 ? 2 : 3);
1777}
1778
1779/* camera tests and poweron/poweroff */
1780#define SONYPI_CAMERA_PICTURE           5
1781#define SONYPI_CAMERA_CONTROL           0x10
1782
1783#define SONYPI_CAMERA_BRIGHTNESS                0
1784#define SONYPI_CAMERA_CONTRAST                  1
1785#define SONYPI_CAMERA_HUE                       2
1786#define SONYPI_CAMERA_COLOR                     3
1787#define SONYPI_CAMERA_SHARPNESS                 4
1788
1789#define SONYPI_CAMERA_EXPOSURE_MASK             0xC
1790#define SONYPI_CAMERA_WHITE_BALANCE_MASK        0x3
1791#define SONYPI_CAMERA_PICTURE_MODE_MASK         0x30
1792#define SONYPI_CAMERA_MUTE_MASK                 0x40
1793
1794/* the rest don't need a loop until not 0xff */
1795#define SONYPI_CAMERA_AGC                       6
1796#define SONYPI_CAMERA_AGC_MASK                  0x30
1797#define SONYPI_CAMERA_SHUTTER_MASK              0x7
1798
1799#define SONYPI_CAMERA_SHUTDOWN_REQUEST          7
1800#define SONYPI_CAMERA_CONTROL                   0x10
1801
1802#define SONYPI_CAMERA_STATUS                    7
1803#define SONYPI_CAMERA_STATUS_READY              0x2
1804#define SONYPI_CAMERA_STATUS_POSITION           0x4
1805
1806#define SONYPI_DIRECTION_BACKWARDS              0x4
1807
1808#define SONYPI_CAMERA_REVISION                  8
1809#define SONYPI_CAMERA_ROMVERSION                9
1810
1811static int __sony_pic_camera_ready(void)
1812{
1813        u8 v;
1814
1815        v = sony_pic_call2(0x8f, SONYPI_CAMERA_STATUS);
1816        return (v != 0xff && (v & SONYPI_CAMERA_STATUS_READY));
1817}
1818
1819static int __sony_pic_camera_off(void)
1820{
1821        if (!camera) {
1822                printk(KERN_WARNING DRV_PFX "camera control not enabled\n");
1823                return -ENODEV;
1824        }
1825
1826        wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE,
1827                                SONYPI_CAMERA_MUTE_MASK),
1828                        ITERATIONS_SHORT);
1829
1830        if (spic_dev.camera_power) {
1831                sony_pic_call2(0x91, 0);
1832                spic_dev.camera_power = 0;
1833        }
1834        return 0;
1835}
1836
1837static int __sony_pic_camera_on(void)
1838{
1839        int i, j, x;
1840
1841        if (!camera) {
1842                printk(KERN_WARNING DRV_PFX "camera control not enabled\n");
1843                return -ENODEV;
1844        }
1845
1846        if (spic_dev.camera_power)
1847                return 0;
1848
1849        for (j = 5; j > 0; j--) {
1850
1851                for (x = 0; x < 100 && sony_pic_call2(0x91, 0x1); x++)
1852                        msleep(10);
1853                sony_pic_call1(0x93);
1854
1855                for (i = 400; i > 0; i--) {
1856                        if (__sony_pic_camera_ready())
1857                                break;
1858                        msleep(10);
1859                }
1860                if (i)
1861                        break;
1862        }
1863
1864        if (j == 0) {
1865                printk(KERN_WARNING DRV_PFX "failed to power on camera\n");
1866                return -ENODEV;
1867        }
1868
1869        wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTROL,
1870                                0x5a),
1871                        ITERATIONS_SHORT);
1872
1873        spic_dev.camera_power = 1;
1874        return 0;
1875}
1876
1877/* External camera command (exported to the motion eye v4l driver) */
1878int sony_pic_camera_command(int command, u8 value)
1879{
1880        if (!camera)
1881                return -EIO;
1882
1883        mutex_lock(&spic_dev.lock);
1884
1885        switch (command) {
1886        case SONY_PIC_COMMAND_SETCAMERA:
1887                if (value)
1888                        __sony_pic_camera_on();
1889                else
1890                        __sony_pic_camera_off();
1891                break;
1892        case SONY_PIC_COMMAND_SETCAMERABRIGHTNESS:
1893                wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_BRIGHTNESS, value),
1894                                ITERATIONS_SHORT);
1895                break;
1896        case SONY_PIC_COMMAND_SETCAMERACONTRAST:
1897                wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTRAST, value),
1898                                ITERATIONS_SHORT);
1899                break;
1900        case SONY_PIC_COMMAND_SETCAMERAHUE:
1901                wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_HUE, value),
1902                                ITERATIONS_SHORT);
1903                break;
1904        case SONY_PIC_COMMAND_SETCAMERACOLOR:
1905                wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_COLOR, value),
1906                                ITERATIONS_SHORT);
1907                break;
1908        case SONY_PIC_COMMAND_SETCAMERASHARPNESS:
1909                wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_SHARPNESS, value),
1910                                ITERATIONS_SHORT);
1911                break;
1912        case SONY_PIC_COMMAND_SETCAMERAPICTURE:
1913                wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE, value),
1914                                ITERATIONS_SHORT);
1915                break;
1916        case SONY_PIC_COMMAND_SETCAMERAAGC:
1917                wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_AGC, value),
1918                                ITERATIONS_SHORT);
1919                break;
1920        default:
1921                printk(KERN_ERR DRV_PFX "sony_pic_camera_command invalid: %d\n",
1922                       command);
1923                break;
1924        }
1925        mutex_unlock(&spic_dev.lock);
1926        return 0;
1927}
1928EXPORT_SYMBOL(sony_pic_camera_command);
1929
1930/* gprs/edge modem (SZ460N and SZ210P), thanks to Joshua Wise */
1931static void __sony_pic_set_wwanpower(u8 state)
1932{
1933        state = !!state;
1934        if (spic_dev.wwan_power == state)
1935                return;
1936        sony_pic_call2(0xB0, state);
1937        sony_pic_call1(0x82);
1938        spic_dev.wwan_power = state;
1939}
1940
1941static ssize_t sony_pic_wwanpower_store(struct device *dev,
1942                struct device_attribute *attr,
1943                const char *buffer, size_t count)
1944{
1945        unsigned long value;
1946        if (count > 31)
1947                return -EINVAL;
1948
1949        value = simple_strtoul(buffer, NULL, 10);
1950        mutex_lock(&spic_dev.lock);
1951        __sony_pic_set_wwanpower(value);
1952        mutex_unlock(&spic_dev.lock);
1953
1954        return count;
1955}
1956
1957static ssize_t sony_pic_wwanpower_show(struct device *dev,
1958                struct device_attribute *attr, char *buffer)
1959{
1960        ssize_t count;
1961        mutex_lock(&spic_dev.lock);
1962        count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.wwan_power);
1963        mutex_unlock(&spic_dev.lock);
1964        return count;
1965}
1966
1967/* bluetooth subsystem power state */
1968static void __sony_pic_set_bluetoothpower(u8 state)
1969{
1970        state = !!state;
1971        if (spic_dev.bluetooth_power == state)
1972                return;
1973        sony_pic_call2(0x96, state);
1974        sony_pic_call1(0x82);
1975        spic_dev.bluetooth_power = state;
1976}
1977
1978static ssize_t sony_pic_bluetoothpower_store(struct device *dev,
1979                struct device_attribute *attr,
1980                const char *buffer, size_t count)
1981{
1982        unsigned long value;
1983        if (count > 31)
1984                return -EINVAL;
1985
1986        value = simple_strtoul(buffer, NULL, 10);
1987        mutex_lock(&spic_dev.lock);
1988        __sony_pic_set_bluetoothpower(value);
1989        mutex_unlock(&spic_dev.lock);
1990
1991        return count;
1992}
1993
1994static ssize_t sony_pic_bluetoothpower_show(struct device *dev,
1995                struct device_attribute *attr, char *buffer)
1996{
1997        ssize_t count = 0;
1998        mutex_lock(&spic_dev.lock);
1999        count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.bluetooth_power);
2000        mutex_unlock(&spic_dev.lock);
2001        return count;
2002}
2003
2004/* fan speed */
2005/* FAN0 information (reverse engineered from ACPI tables) */
2006#define SONY_PIC_FAN0_STATUS    0x93
2007static int sony_pic_set_fanspeed(unsigned long value)
2008{
2009        return ec_write(SONY_PIC_FAN0_STATUS, value);
2010}
2011
2012static int sony_pic_get_fanspeed(u8 *value)
2013{
2014        return ec_read(SONY_PIC_FAN0_STATUS, value);
2015}
2016
2017static ssize_t sony_pic_fanspeed_store(struct device *dev,
2018                struct device_attribute *attr,
2019                const char *buffer, size_t count)
2020{
2021        unsigned long value;
2022        if (count > 31)
2023                return -EINVAL;
2024
2025        value = simple_strtoul(buffer, NULL, 10);
2026        if (sony_pic_set_fanspeed(value))
2027                return -EIO;
2028
2029        return count;
2030}
2031
2032static ssize_t sony_pic_fanspeed_show(struct device *dev,
2033                struct device_attribute *attr, char *buffer)
2034{
2035        u8 value = 0;
2036        if (sony_pic_get_fanspeed(&value))
2037                return -EIO;
2038
2039        return snprintf(buffer, PAGE_SIZE, "%d\n", value);
2040}
2041
2042#define SPIC_ATTR(_name, _mode)                                 \
2043struct device_attribute spic_attr_##_name = __ATTR(_name,       \
2044                _mode, sony_pic_## _name ##_show,               \
2045                sony_pic_## _name ##_store)
2046
2047static SPIC_ATTR(bluetoothpower, 0644);
2048static SPIC_ATTR(wwanpower, 0644);
2049static SPIC_ATTR(fanspeed, 0644);
2050
2051static struct attribute *spic_attributes[] = {
2052        &spic_attr_bluetoothpower.attr,
2053        &spic_attr_wwanpower.attr,
2054        &spic_attr_fanspeed.attr,
2055        NULL
2056};
2057
2058static struct attribute_group spic_attribute_group = {
2059        .attrs = spic_attributes
2060};
2061
2062/******** SONYPI compatibility **********/
2063#ifdef CONFIG_SONYPI_COMPAT
2064
2065/* battery / brightness / temperature  addresses */
2066#define SONYPI_BAT_FLAGS        0x81
2067#define SONYPI_LCD_LIGHT        0x96
2068#define SONYPI_BAT1_PCTRM       0xa0
2069#define SONYPI_BAT1_LEFT        0xa2
2070#define SONYPI_BAT1_MAXRT       0xa4
2071#define SONYPI_BAT2_PCTRM       0xa8
2072#define SONYPI_BAT2_LEFT        0xaa
2073#define SONYPI_BAT2_MAXRT       0xac
2074#define SONYPI_BAT1_MAXTK       0xb0
2075#define SONYPI_BAT1_FULL        0xb2
2076#define SONYPI_BAT2_MAXTK       0xb8
2077#define SONYPI_BAT2_FULL        0xba
2078#define SONYPI_TEMP_STATUS      0xC1
2079
2080struct sonypi_compat_s {
2081        struct fasync_struct    *fifo_async;
2082        struct kfifo            *fifo;
2083        spinlock_t              fifo_lock;
2084        wait_queue_head_t       fifo_proc_list;
2085        atomic_t                open_count;
2086};
2087static struct sonypi_compat_s sonypi_compat = {
2088        .open_count = ATOMIC_INIT(0),
2089};
2090
2091static int sonypi_misc_fasync(int fd, struct file *filp, int on)
2092{
2093        return fasync_helper(fd, filp, on, &sonypi_compat.fifo_async);
2094}
2095
2096static int sonypi_misc_release(struct inode *inode, struct file *file)
2097{
2098        atomic_dec(&sonypi_compat.open_count);
2099        return 0;
2100}
2101
2102static int sonypi_misc_open(struct inode *inode, struct file *file)
2103{
2104        /* Flush input queue on first open */
2105        unsigned long flags;
2106
2107        spin_lock_irqsave(sonypi_compat.fifo->lock, flags);
2108
2109        if (atomic_inc_return(&sonypi_compat.open_count) == 1)
2110                __kfifo_reset(sonypi_compat.fifo);
2111
2112        spin_unlock_irqrestore(sonypi_compat.fifo->lock, flags);
2113
2114        return 0;
2115}
2116
2117static ssize_t sonypi_misc_read(struct file *file, char __user *buf,
2118                                size_t count, loff_t *pos)
2119{
2120        ssize_t ret;
2121        unsigned char c;
2122
2123        if ((kfifo_len(sonypi_compat.fifo) == 0) &&
2124            (file->f_flags & O_NONBLOCK))
2125                return -EAGAIN;
2126
2127        ret = wait_event_interruptible(sonypi_compat.fifo_proc_list,
2128                                       kfifo_len(sonypi_compat.fifo) != 0);
2129        if (ret)
2130                return ret;
2131
2132        while (ret < count &&
2133               (kfifo_get(sonypi_compat.fifo, &c, sizeof(c)) == sizeof(c))) {
2134                if (put_user(c, buf++))
2135                        return -EFAULT;
2136                ret++;
2137        }
2138
2139        if (ret > 0) {
2140                struct inode *inode = file->f_path.dentry->d_inode;
2141                inode->i_atime = current_fs_time(inode->i_sb);
2142        }
2143
2144        return ret;
2145}
2146
2147static unsigned int sonypi_misc_poll(struct file *file, poll_table *wait)
2148{
2149        poll_wait(file, &sonypi_compat.fifo_proc_list, wait);
2150        if (kfifo_len(sonypi_compat.fifo))
2151                return POLLIN | POLLRDNORM;
2152        return 0;
2153}
2154
2155static int ec_read16(u8 addr, u16 *value)
2156{
2157        u8 val_lb, val_hb;
2158        if (ec_read(addr, &val_lb))
2159                return -1;
2160        if (ec_read(addr + 1, &val_hb))
2161                return -1;
2162        *value = val_lb | (val_hb << 8);
2163        return 0;
2164}
2165
2166static long sonypi_misc_ioctl(struct file *fp, unsigned int cmd,
2167                                                        unsigned long arg)
2168{
2169        int ret = 0;
2170        void __user *argp = (void __user *)arg;
2171        u8 val8;
2172        u16 val16;
2173        int value;
2174
2175        mutex_lock(&spic_dev.lock);
2176        switch (cmd) {
2177        case SONYPI_IOCGBRT:
2178                if (sony_backlight_device == NULL) {
2179                        ret = -EIO;
2180                        break;
2181                }
2182                if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value)) {
2183                        ret = -EIO;
2184                        break;
2185                }
2186                val8 = ((value & 0xff) - 1) << 5;
2187                if (copy_to_user(argp, &val8, sizeof(val8)))
2188                                ret = -EFAULT;
2189                break;
2190        case SONYPI_IOCSBRT:
2191                if (sony_backlight_device == NULL) {
2192                        ret = -EIO;
2193                        break;
2194                }
2195                if (copy_from_user(&val8, argp, sizeof(val8))) {
2196                        ret = -EFAULT;
2197                        break;
2198                }
2199                if (acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
2200                                (val8 >> 5) + 1, NULL)) {
2201                        ret = -EIO;
2202                        break;
2203                }
2204                /* sync the backlight device status */
2205                sony_backlight_device->props.brightness =
2206                    sony_backlight_get_brightness(sony_backlight_device);
2207                break;
2208        case SONYPI_IOCGBAT1CAP:
2209                if (ec_read16(SONYPI_BAT1_FULL, &val16)) {
2210                        ret = -EIO;
2211                        break;
2212                }
2213                if (copy_to_user(argp, &val16, sizeof(val16)))
2214                        ret = -EFAULT;
2215                break;
2216        case SONYPI_IOCGBAT1REM:
2217                if (ec_read16(SONYPI_BAT1_LEFT, &val16)) {
2218                        ret = -EIO;
2219                        break;
2220                }
2221                if (copy_to_user(argp, &val16, sizeof(val16)))
2222                        ret = -EFAULT;
2223                break;
2224        case SONYPI_IOCGBAT2CAP:
2225                if (ec_read16(SONYPI_BAT2_FULL, &val16)) {
2226                        ret = -EIO;
2227                        break;
2228                }
2229                if (copy_to_user(argp, &val16, sizeof(val16)))
2230                        ret = -EFAULT;
2231                break;
2232        case SONYPI_IOCGBAT2REM:
2233                if (ec_read16(SONYPI_BAT2_LEFT, &val16)) {
2234                        ret = -EIO;
2235                        break;
2236                }
2237                if (copy_to_user(argp, &val16, sizeof(val16)))
2238                        ret = -EFAULT;
2239                break;
2240        case SONYPI_IOCGBATFLAGS:
2241                if (ec_read(SONYPI_BAT_FLAGS, &val8)) {
2242                        ret = -EIO;
2243                        break;
2244                }
2245                val8 &= 0x07;
2246                if (copy_to_user(argp, &val8, sizeof(val8)))
2247                        ret = -EFAULT;
2248                break;
2249        case SONYPI_IOCGBLUE:
2250                val8 = spic_dev.bluetooth_power;
2251                if (copy_to_user(argp, &val8, sizeof(val8)))
2252                        ret = -EFAULT;
2253                break;
2254        case SONYPI_IOCSBLUE:
2255                if (copy_from_user(&val8, argp, sizeof(val8))) {
2256                        ret = -EFAULT;
2257                        break;
2258                }
2259                __sony_pic_set_bluetoothpower(val8);
2260                break;
2261        /* FAN Controls */
2262        case SONYPI_IOCGFAN:
2263                if (sony_pic_get_fanspeed(&val8)) {
2264                        ret = -EIO;
2265                        break;
2266                }
2267                if (copy_to_user(argp, &val8, sizeof(val8)))
2268                        ret = -EFAULT;
2269                break;
2270        case SONYPI_IOCSFAN:
2271                if (copy_from_user(&val8, argp, sizeof(val8))) {
2272                        ret = -EFAULT;
2273                        break;
2274                }
2275                if (sony_pic_set_fanspeed(val8))
2276                        ret = -EIO;
2277                break;
2278        /* GET Temperature (useful under APM) */
2279        case SONYPI_IOCGTEMP:
2280                if (ec_read(SONYPI_TEMP_STATUS, &val8)) {
2281                        ret = -EIO;
2282                        break;
2283                }
2284                if (copy_to_user(argp, &val8, sizeof(val8)))
2285                        ret = -EFAULT;
2286                break;
2287        default:
2288                ret = -EINVAL;
2289        }
2290        mutex_unlock(&spic_dev.lock);
2291        return ret;
2292}
2293
2294static const struct file_operations sonypi_misc_fops = {
2295        .owner          = THIS_MODULE,
2296        .read           = sonypi_misc_read,
2297        .poll           = sonypi_misc_poll,
2298        .open           = sonypi_misc_open,
2299        .release        = sonypi_misc_release,
2300        .fasync         = sonypi_misc_fasync,
2301        .unlocked_ioctl = sonypi_misc_ioctl,
2302};
2303
2304static struct miscdevice sonypi_misc_device = {
2305        .minor          = MISC_DYNAMIC_MINOR,
2306        .name           = "sonypi",
2307        .fops           = &sonypi_misc_fops,
2308};
2309
2310static void sonypi_compat_report_event(u8 event)
2311{
2312        kfifo_put(sonypi_compat.fifo, (unsigned char *)&event, sizeof(event));
2313        kill_fasync(&sonypi_compat.fifo_async, SIGIO, POLL_IN);
2314        wake_up_interruptible(&sonypi_compat.fifo_proc_list);
2315}
2316
2317static int sonypi_compat_init(void)
2318{
2319        int error;
2320
2321        spin_lock_init(&sonypi_compat.fifo_lock);
2322        sonypi_compat.fifo = kfifo_alloc(SONY_LAPTOP_BUF_SIZE, GFP_KERNEL,
2323                                         &sonypi_compat.fifo_lock);
2324        if (IS_ERR(sonypi_compat.fifo)) {
2325                printk(KERN_ERR DRV_PFX "kfifo_alloc failed\n");
2326                return PTR_ERR(sonypi_compat.fifo);
2327        }
2328
2329        init_waitqueue_head(&sonypi_compat.fifo_proc_list);
2330
2331        if (minor != -1)
2332                sonypi_misc_device.minor = minor;
2333        error = misc_register(&sonypi_misc_device);
2334        if (error) {
2335                printk(KERN_ERR DRV_PFX "misc_register failed\n");
2336                goto err_free_kfifo;
2337        }
2338        if (minor == -1)
2339                printk(KERN_INFO DRV_PFX "device allocated minor is %d\n",
2340                       sonypi_misc_device.minor);
2341
2342        return 0;
2343
2344err_free_kfifo:
2345        kfifo_free(sonypi_compat.fifo);
2346        return error;
2347}
2348
2349static void sonypi_compat_exit(void)
2350{
2351        misc_deregister(&sonypi_misc_device);
2352        kfifo_free(sonypi_compat.fifo);
2353}
2354#else
2355static int sonypi_compat_init(void) { return 0; }
2356static void sonypi_compat_exit(void) { }
2357static void sonypi_compat_report_event(u8 event) { }
2358#endif /* CONFIG_SONYPI_COMPAT */
2359
2360/*
2361 * ACPI callbacks
2362 */
2363static acpi_status
2364sony_pic_read_possible_resource(struct acpi_resource *resource, void *context)
2365{
2366        u32 i;
2367        struct sony_pic_dev *dev = (struct sony_pic_dev *)context;
2368
2369        switch (resource->type) {
2370        case ACPI_RESOURCE_TYPE_START_DEPENDENT:
2371                {
2372                        /* start IO enumeration */
2373                        struct sony_pic_ioport *ioport = kzalloc(sizeof(*ioport), GFP_KERNEL);
2374                        if (!ioport)
2375                                return AE_ERROR;
2376
2377                        list_add(&ioport->list, &dev->ioports);
2378                        return AE_OK;
2379                }
2380
2381        case ACPI_RESOURCE_TYPE_END_DEPENDENT:
2382                /* end IO enumeration */
2383                return AE_OK;
2384
2385        case ACPI_RESOURCE_TYPE_IRQ:
2386                {
2387                        struct acpi_resource_irq *p = &resource->data.irq;
2388                        struct sony_pic_irq *interrupt = NULL;
2389                        if (!p || !p->interrupt_count) {
2390                                /*
2391                                 * IRQ descriptors may have no IRQ# bits set,
2392                                 * particularly those those w/ _STA disabled
2393                                 */
2394                                dprintk("Blank IRQ resource\n");
2395                                return AE_OK;
2396                        }
2397                        for (i = 0; i < p->interrupt_count; i++) {
2398                                if (!p->interrupts[i]) {
2399                                        printk(KERN_WARNING DRV_PFX
2400                                                        "Invalid IRQ %d\n",
2401                                                        p->interrupts[i]);
2402                                        continue;
2403                                }
2404                                interrupt = kzalloc(sizeof(*interrupt),
2405                                                GFP_KERNEL);
2406                                if (!interrupt)
2407                                        return AE_ERROR;
2408
2409                                list_add(&interrupt->list, &dev->interrupts);
2410                                interrupt->irq.triggering = p->triggering;
2411                                interrupt->irq.polarity = p->polarity;
2412                                interrupt->irq.sharable = p->sharable;
2413                                interrupt->irq.interrupt_count = 1;
2414                                interrupt->irq.interrupts[0] = p->interrupts[i];
2415                        }
2416                        return AE_OK;
2417                }
2418        case ACPI_RESOURCE_TYPE_IO:
2419                {
2420                        struct acpi_resource_io *io = &resource->data.io;
2421                        struct sony_pic_ioport *ioport =
2422                                list_first_entry(&dev->ioports, struct sony_pic_ioport, list);
2423                        if (!io) {
2424                                dprintk("Blank IO resource\n");
2425                                return AE_OK;
2426                        }
2427
2428                        if (!ioport->io1.minimum) {
2429                                memcpy(&ioport->io1, io, sizeof(*io));
2430                                dprintk("IO1 at 0x%.4x (0x%.2x)\n", ioport->io1.minimum,
2431                                                ioport->io1.address_length);
2432                        }
2433                        else if (!ioport->io2.minimum) {
2434                                memcpy(&ioport->io2, io, sizeof(*io));
2435                                dprintk("IO2 at 0x%.4x (0x%.2x)\n", ioport->io2.minimum,
2436                                                ioport->io2.address_length);
2437                        }
2438                        else {
2439                                printk(KERN_ERR DRV_PFX "Unknown SPIC Type, more than 2 IO Ports\n");
2440                                return AE_ERROR;
2441                        }
2442                        return AE_OK;
2443                }
2444        default:
2445                dprintk("Resource %d isn't an IRQ nor an IO port\n",
2446                                resource->type);
2447
2448        case ACPI_RESOURCE_TYPE_END_TAG:
2449                return AE_OK;
2450        }
2451        return AE_CTRL_TERMINATE;
2452}
2453
2454static int sony_pic_possible_resources(struct acpi_device *device)
2455{
2456        int result = 0;
2457        acpi_status status = AE_OK;
2458
2459        if (!device)
2460                return -EINVAL;
2461
2462        /* get device status */
2463        /* see acpi_pci_link_get_current acpi_pci_link_get_possible */
2464        dprintk("Evaluating _STA\n");
2465        result = acpi_bus_get_status(device);
2466        if (result) {
2467                printk(KERN_WARNING DRV_PFX "Unable to read status\n");
2468                goto end;
2469        }
2470
2471        if (!device->status.enabled)
2472                dprintk("Device disabled\n");
2473        else
2474                dprintk("Device enabled\n");
2475
2476        /*
2477         * Query and parse 'method'
2478         */
2479        dprintk("Evaluating %s\n", METHOD_NAME__PRS);
2480        status = acpi_walk_resources(device->handle, METHOD_NAME__PRS,
2481                        sony_pic_read_possible_resource, &spic_dev);
2482        if (ACPI_FAILURE(status)) {
2483                printk(KERN_WARNING DRV_PFX
2484                                "Failure evaluating %s\n",
2485                                METHOD_NAME__PRS);
2486                result = -ENODEV;
2487        }
2488end:
2489        return result;
2490}
2491
2492/*
2493 *  Disable the spic device by calling its _DIS method
2494 */
2495static int sony_pic_disable(struct acpi_device *device)
2496{
2497        acpi_status ret = acpi_evaluate_object(device->handle, "_DIS", NULL,
2498                                               NULL);
2499
2500        if (ACPI_FAILURE(ret) && ret != AE_NOT_FOUND)
2501                return -ENXIO;
2502
2503        dprintk("Device disabled\n");
2504        return 0;
2505}
2506
2507
2508/*
2509 *  Based on drivers/acpi/pci_link.c:acpi_pci_link_set
2510 *
2511 *  Call _SRS to set current resources
2512 */
2513static int sony_pic_enable(struct acpi_device *device,
2514                struct sony_pic_ioport *ioport, struct sony_pic_irq *irq)
2515{
2516        acpi_status status;
2517        int result = 0;
2518        /* Type 1 resource layout is:
2519         *    IO
2520         *    IO
2521         *    IRQNoFlags
2522         *    End
2523         *
2524         * Type 2 and 3 resource layout is:
2525         *    IO
2526         *    IRQNoFlags
2527         *    End
2528         */
2529        struct {
2530                struct acpi_resource res1;
2531                struct acpi_resource res2;
2532                struct acpi_resource res3;
2533                struct acpi_resource res4;
2534        } *resource;
2535        struct acpi_buffer buffer = { 0, NULL };
2536
2537        if (!ioport || !irq)
2538                return -EINVAL;
2539
2540        /* init acpi_buffer */
2541        resource = kzalloc(sizeof(*resource) + 1, GFP_KERNEL);
2542        if (!resource)
2543                return -ENOMEM;
2544
2545        buffer.length = sizeof(*resource) + 1;
2546        buffer.pointer = resource;
2547
2548        /* setup Type 1 resources */
2549        if (spic_dev.model == SONYPI_DEVICE_TYPE1) {
2550
2551                /* setup io resources */
2552                resource->res1.type = ACPI_RESOURCE_TYPE_IO;
2553                resource->res1.length = sizeof(struct acpi_resource);
2554                memcpy(&resource->res1.data.io, &ioport->io1,
2555                                sizeof(struct acpi_resource_io));
2556
2557                resource->res2.type = ACPI_RESOURCE_TYPE_IO;
2558                resource->res2.length = sizeof(struct acpi_resource);
2559                memcpy(&resource->res2.data.io, &ioport->io2,
2560                                sizeof(struct acpi_resource_io));
2561
2562                /* setup irq resource */
2563                resource->res3.type = ACPI_RESOURCE_TYPE_IRQ;
2564                resource->res3.length = sizeof(struct acpi_resource);
2565                memcpy(&resource->res3.data.irq, &irq->irq,
2566                                sizeof(struct acpi_resource_irq));
2567                /* we requested a shared irq */
2568                resource->res3.data.irq.sharable = ACPI_SHARED;
2569
2570                resource->res4.type = ACPI_RESOURCE_TYPE_END_TAG;
2571
2572        }
2573        /* setup Type 2/3 resources */
2574        else {
2575                /* setup io resource */
2576                resource->res1.type = ACPI_RESOURCE_TYPE_IO;
2577                resource->res1.length = sizeof(struct acpi_resource);
2578                memcpy(&resource->res1.data.io, &ioport->io1,
2579                                sizeof(struct acpi_resource_io));
2580
2581                /* setup irq resource */
2582                resource->res2.type = ACPI_RESOURCE_TYPE_IRQ;
2583                resource->res2.length = sizeof(struct acpi_resource);
2584                memcpy(&resource->res2.data.irq, &irq->irq,
2585                                sizeof(struct acpi_resource_irq));
2586                /* we requested a shared irq */
2587                resource->res2.data.irq.sharable = ACPI_SHARED;
2588
2589                resource->res3.type = ACPI_RESOURCE_TYPE_END_TAG;
2590        }
2591
2592        /* Attempt to set the resource */
2593        dprintk("Evaluating _SRS\n");
2594        status = acpi_set_current_resources(device->handle, &buffer);
2595
2596        /* check for total failure */
2597        if (ACPI_FAILURE(status)) {
2598                printk(KERN_ERR DRV_PFX "Error evaluating _SRS\n");
2599                result = -ENODEV;
2600                goto end;
2601        }
2602
2603        /* Necessary device initializations calls (from sonypi) */
2604        sony_pic_call1(0x82);
2605        sony_pic_call2(0x81, 0xff);
2606        sony_pic_call1(compat ? 0x92 : 0x82);
2607
2608end:
2609        kfree(resource);
2610        return result;
2611}
2612
2613/*****************
2614 *
2615 * ISR: some event is available
2616 *
2617 *****************/
2618static irqreturn_t sony_pic_irq(int irq, void *dev_id)
2619{
2620        int i, j;
2621        u8 ev = 0;
2622        u8 data_mask = 0;
2623        u8 device_event = 0;
2624
2625        struct sony_pic_dev *dev = (struct sony_pic_dev *) dev_id;
2626
2627        ev = inb_p(dev->cur_ioport->io1.minimum);
2628        if (dev->cur_ioport->io2.minimum)
2629                data_mask = inb_p(dev->cur_ioport->io2.minimum);
2630        else
2631                data_mask = inb_p(dev->cur_ioport->io1.minimum +
2632                                dev->evport_offset);
2633
2634        dprintk("event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
2635                        ev, data_mask, dev->cur_ioport->io1.minimum,
2636                        dev->evport_offset);
2637
2638        if (ev == 0x00 || ev == 0xff)
2639                return IRQ_HANDLED;
2640
2641        for (i = 0; dev->event_types[i].mask; i++) {
2642
2643                if ((data_mask & dev->event_types[i].data) !=
2644                    dev->event_types[i].data)
2645                        continue;
2646
2647                if (!(mask & dev->event_types[i].mask))
2648                        continue;
2649
2650                for (j = 0; dev->event_types[i].events[j].event; j++) {
2651                        if (ev == dev->event_types[i].events[j].data) {
2652                                device_event =
2653                                        dev->event_types[i].events[j].event;
2654                                goto found;
2655                        }
2656                }
2657        }
2658        /* Still not able to decode the event try to pass
2659         * it over to the minidriver
2660         */
2661        if (dev->handle_irq && dev->handle_irq(data_mask, ev) == 0)
2662                return IRQ_HANDLED;
2663
2664        dprintk("unknown event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
2665                        ev, data_mask, dev->cur_ioport->io1.minimum,
2666                        dev->evport_offset);
2667        return IRQ_HANDLED;
2668
2669found:
2670        sony_laptop_report_input_event(device_event);
2671        acpi_bus_generate_proc_event(dev->acpi_dev, 1, device_event);
2672        sonypi_compat_report_event(device_event);
2673
2674        return IRQ_HANDLED;
2675}
2676
2677/*****************
2678 *
2679 *  ACPI driver
2680 *
2681 *****************/
2682static int sony_pic_remove(struct acpi_device *device, int type)
2683{
2684        struct sony_pic_ioport *io, *tmp_io;
2685        struct sony_pic_irq *irq, *tmp_irq;
2686
2687        if (sony_pic_disable(device)) {
2688                printk(KERN_ERR DRV_PFX "Couldn't disable device.\n");
2689                return -ENXIO;
2690        }
2691
2692        free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
2693        release_region(spic_dev.cur_ioport->io1.minimum,
2694                        spic_dev.cur_ioport->io1.address_length);
2695        if (spic_dev.cur_ioport->io2.minimum)
2696                release_region(spic_dev.cur_ioport->io2.minimum,
2697                                spic_dev.cur_ioport->io2.address_length);
2698
2699        sonypi_compat_exit();
2700
2701        sony_laptop_remove_input();
2702
2703        /* pf attrs */
2704        sysfs_remove_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
2705        sony_pf_remove();
2706
2707        list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
2708                list_del(&io->list);
2709                kfree(io);
2710        }
2711        list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
2712                list_del(&irq->list);
2713                kfree(irq);
2714        }
2715        spic_dev.cur_ioport = NULL;
2716        spic_dev.cur_irq = NULL;
2717
2718        dprintk(SONY_PIC_DRIVER_NAME " removed.\n");
2719        return 0;
2720}
2721
2722static int sony_pic_add(struct acpi_device *device)
2723{
2724        int result;
2725        struct sony_pic_ioport *io, *tmp_io;
2726        struct sony_pic_irq *irq, *tmp_irq;
2727
2728        printk(KERN_INFO DRV_PFX "%s v%s.\n",
2729                SONY_PIC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
2730
2731        spic_dev.acpi_dev = device;
2732        strcpy(acpi_device_class(device), "sony/hotkey");
2733        sony_pic_detect_device_type(&spic_dev);
2734        mutex_init(&spic_dev.lock);
2735
2736        /* read _PRS resources */
2737        result = sony_pic_possible_resources(device);
2738        if (result) {
2739                printk(KERN_ERR DRV_PFX
2740                                "Unable to read possible resources.\n");
2741                goto err_free_resources;
2742        }
2743
2744        /* setup input devices and helper fifo */
2745        result = sony_laptop_setup_input(device);
2746        if (result) {
2747                printk(KERN_ERR DRV_PFX
2748                                "Unable to create input devices.\n");
2749                goto err_free_resources;
2750        }
2751
2752        if (sonypi_compat_init())
2753                goto err_remove_input;
2754
2755        /* request io port */
2756        list_for_each_entry_reverse(io, &spic_dev.ioports, list) {
2757                if (request_region(io->io1.minimum, io->io1.address_length,
2758                                        "Sony Programable I/O Device")) {
2759                        dprintk("I/O port1: 0x%.4x (0x%.4x) + 0x%.2x\n",
2760                                        io->io1.minimum, io->io1.maximum,
2761                                        io->io1.address_length);
2762                        /* Type 1 have 2 ioports */
2763                        if (io->io2.minimum) {
2764                                if (request_region(io->io2.minimum,
2765                                                io->io2.address_length,
2766                                                "Sony Programable I/O Device")) {
2767                                        dprintk("I/O port2: 0x%.4x (0x%.4x) + 0x%.2x\n",
2768                                                        io->io2.minimum, io->io2.maximum,
2769                                                        io->io2.address_length);
2770                                        spic_dev.cur_ioport = io;
2771                                        break;
2772                                }
2773                                else {
2774                                        dprintk("Unable to get I/O port2: "
2775                                                        "0x%.4x (0x%.4x) + 0x%.2x\n",
2776                                                        io->io2.minimum, io->io2.maximum,
2777                                                        io->io2.address_length);
2778                                        release_region(io->io1.minimum,
2779                                                        io->io1.address_length);
2780                                }
2781                        }
2782                        else {
2783                                spic_dev.cur_ioport = io;
2784                                break;
2785                        }
2786                }
2787        }
2788        if (!spic_dev.cur_ioport) {
2789                printk(KERN_ERR DRV_PFX "Failed to request_region.\n");
2790                result = -ENODEV;
2791                goto err_remove_compat;
2792        }
2793
2794        /* request IRQ */
2795        list_for_each_entry_reverse(irq, &spic_dev.interrupts, list) {
2796                if (!request_irq(irq->irq.interrupts[0], sony_pic_irq,
2797                                        IRQF_DISABLED, "sony-laptop", &spic_dev)) {
2798                        dprintk("IRQ: %d - triggering: %d - "
2799                                        "polarity: %d - shr: %d\n",
2800                                        irq->irq.interrupts[0],
2801                                        irq->irq.triggering,
2802                                        irq->irq.polarity,
2803                                        irq->irq.sharable);
2804                        spic_dev.cur_irq = irq;
2805                        break;
2806                }
2807        }
2808        if (!spic_dev.cur_irq) {
2809                printk(KERN_ERR DRV_PFX "Failed to request_irq.\n");
2810                result = -ENODEV;
2811                goto err_release_region;
2812        }
2813
2814        /* set resource status _SRS */
2815        result = sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
2816        if (result) {
2817                printk(KERN_ERR DRV_PFX "Couldn't enable device.\n");
2818                goto err_free_irq;
2819        }
2820
2821        spic_dev.bluetooth_power = -1;
2822        /* create device attributes */
2823        result = sony_pf_add();
2824        if (result)
2825                goto err_disable_device;
2826
2827        result = sysfs_create_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
2828        if (result)
2829                goto err_remove_pf;
2830
2831        return 0;
2832
2833err_remove_pf:
2834        sony_pf_remove();
2835
2836err_disable_device:
2837        sony_pic_disable(device);
2838
2839err_free_irq:
2840        free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
2841
2842err_release_region:
2843        release_region(spic_dev.cur_ioport->io1.minimum,
2844                        spic_dev.cur_ioport->io1.address_length);
2845        if (spic_dev.cur_ioport->io2.minimum)
2846                release_region(spic_dev.cur_ioport->io2.minimum,
2847                                spic_dev.cur_ioport->io2.address_length);
2848
2849err_remove_compat:
2850        sonypi_compat_exit();
2851
2852err_remove_input:
2853        sony_laptop_remove_input();
2854
2855err_free_resources:
2856        list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
2857                list_del(&io->list);
2858                kfree(io);
2859        }
2860        list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
2861                list_del(&irq->list);
2862                kfree(irq);
2863        }
2864        spic_dev.cur_ioport = NULL;
2865        spic_dev.cur_irq = NULL;
2866
2867        return result;
2868}
2869
2870static int sony_pic_suspend(struct acpi_device *device, pm_message_t state)
2871{
2872        if (sony_pic_disable(device))
2873                return -ENXIO;
2874        return 0;
2875}
2876
2877static int sony_pic_resume(struct acpi_device *device)
2878{
2879        sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
2880        return 0;
2881}
2882
2883static const struct acpi_device_id sony_pic_device_ids[] = {
2884        {SONY_PIC_HID, 0},
2885        {"", 0},
2886};
2887
2888static struct acpi_driver sony_pic_driver = {
2889        .name = SONY_PIC_DRIVER_NAME,
2890        .class = SONY_PIC_CLASS,
2891        .ids = sony_pic_device_ids,
2892        .owner = THIS_MODULE,
2893        .ops = {
2894                .add = sony_pic_add,
2895                .remove = sony_pic_remove,
2896                .suspend = sony_pic_suspend,
2897                .resume = sony_pic_resume,
2898                },
2899};
2900
2901static struct dmi_system_id __initdata sonypi_dmi_table[] = {
2902        {
2903                .ident = "Sony Vaio",
2904                .matches = {
2905                        DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
2906                        DMI_MATCH(DMI_PRODUCT_NAME, "PCG-"),
2907                },
2908        },
2909        {
2910                .ident = "Sony Vaio",
2911                .matches = {
2912                        DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
2913                        DMI_MATCH(DMI_PRODUCT_NAME, "VGN-"),
2914                },
2915        },
2916        { }
2917};
2918
2919static int __init sony_laptop_init(void)
2920{
2921        int result;
2922
2923        if (!no_spic && dmi_check_system(sonypi_dmi_table)) {
2924                result = acpi_bus_register_driver(&sony_pic_driver);
2925                if (result) {
2926                        printk(KERN_ERR DRV_PFX
2927                                        "Unable to register SPIC driver.");
2928                        goto out;
2929                }
2930                spic_drv_registered = 1;
2931        }
2932
2933        result = acpi_bus_register_driver(&sony_nc_driver);
2934        if (result) {
2935                printk(KERN_ERR DRV_PFX "Unable to register SNC driver.");
2936                goto out_unregister_pic;
2937        }
2938
2939        return 0;
2940
2941out_unregister_pic:
2942        if (spic_drv_registered)
2943                acpi_bus_unregister_driver(&sony_pic_driver);
2944out:
2945        return result;
2946}
2947
2948static void __exit sony_laptop_exit(void)
2949{
2950        acpi_bus_unregister_driver(&sony_nc_driver);
2951        if (spic_drv_registered)
2952                acpi_bus_unregister_driver(&sony_pic_driver);
2953}
2954
2955module_init(sony_laptop_init);
2956module_exit(sony_laptop_exit);
2957