drivers/misc/sony-laptop.c

   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 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 Alcôve <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 #ifdef CONFIG_SONYPI_COMPAT
  67 #include <linux/poll.h>
  68 #include <linux/miscdevice.h>
  69 #endif
  70
  71 #define DRV_PFX                 "sony-laptop: "
  72 #define dprintk(msg...)         do {                    \
  73         if (debug) printk(KERN_WARNING DRV_PFX  msg);   \
  74 } while (0)
  75
  76 #define SONY_LAPTOP_DRIVER_VERSION      "0.5"
  77
  78 #define SONY_NC_CLASS           "sony-nc"
  79 #define SONY_NC_HID             "SNY5001"
  80 #define SONY_NC_DRIVER_NAME     "Sony Notebook Control Driver"
  81
  82 #define SONY_PIC_CLASS          "sony-pic"
  83 #define SONY_PIC_HID            "SNY6001"
  84 #define SONY_PIC_DRIVER_NAME    "Sony Programmable IO Control Driver"
  85
  86 MODULE_AUTHOR("Stelian Pop, Mattia Dongili");
  87 MODULE_DESCRIPTION("Sony laptop extras driver (SPIC and SNC ACPI device)");
  88 MODULE_LICENSE("GPL");
  89 MODULE_VERSION(SONY_LAPTOP_DRIVER_VERSION);
  90
  91 static int debug;
  92 module_param(debug, int, 0);
  93 MODULE_PARM_DESC(debug, "set this to 1 (and RTFM) if you want to help "
  94                  "the development of this driver");
  95
  96 static int no_spic;             /* = 0 */
  97 module_param(no_spic, int, 0444);
  98 MODULE_PARM_DESC(no_spic,
  99                  "set this if you don't want to enable the SPIC device");
 100
 101 static int compat;              /* = 0 */
 102 module_param(compat, int, 0444);
 103 MODULE_PARM_DESC(compat,
 104                  "set this if you want to enable backward compatibility mode");
 105
 106 static unsigned long mask = 0xffffffff;
 107 module_param(mask, ulong, 0644);
 108 MODULE_PARM_DESC(mask,
 109                  "set this to the mask of event you want to enable (see doc)");
 110
 111 static int camera;              /* = 0 */
 112 module_param(camera, int, 0444);
 113 MODULE_PARM_DESC(camera,
 114                  "set this to 1 to enable Motion Eye camera controls "
 115                  "(only use it if you have a C1VE or C1VN model)");
 116
 117 #ifdef CONFIG_SONYPI_COMPAT
 118 static int minor = -1;
 119 module_param(minor, int, 0);
 120 MODULE_PARM_DESC(minor,
 121                  "minor number of the misc device for the SPIC compatibility code, "
 122                  "default is -1 (automatic)");
 123 #endif
 124
 125 /*********** Input Devices ***********/
 126
 127 #define SONY_LAPTOP_BUF_SIZE    128
 128 struct sony_laptop_input_s {
 129         atomic_t                users;
 130         struct input_dev        *jog_dev;
 131         struct input_dev        *key_dev;
 132         struct kfifo            *fifo;
 133         spinlock_t              fifo_lock;
 134         struct workqueue_struct *wq;
 135 };
 136 static struct sony_laptop_input_s sony_laptop_input = {
 137         .users = ATOMIC_INIT(0),
 138 };
 139
 140 struct sony_laptop_keypress {
 141         struct input_dev *dev;
 142         int key;
 143 };
 144
 145 /* Correspondance table between sonypi events and input layer events */
 146 static struct {
 147         int sonypiev;
 148         int inputev;
 149 } sony_laptop_inputkeys[] = {
 150         { SONYPI_EVENT_CAPTURE_PRESSED,         KEY_CAMERA },
 151         { SONYPI_EVENT_FNKEY_ONLY,              KEY_FN },
 152         { SONYPI_EVENT_FNKEY_ESC,               KEY_FN_ESC },
 153         { SONYPI_EVENT_FNKEY_F1,                KEY_FN_F1 },
 154         { SONYPI_EVENT_FNKEY_F2,                KEY_FN_F2 },
 155         { SONYPI_EVENT_FNKEY_F3,                KEY_FN_F3 },
 156         { SONYPI_EVENT_FNKEY_F4,                KEY_FN_F4 },
 157         { SONYPI_EVENT_FNKEY_F5,                KEY_FN_F5 },
 158         { SONYPI_EVENT_FNKEY_F6,                KEY_FN_F6 },
 159         { SONYPI_EVENT_FNKEY_F7,                KEY_FN_F7 },
 160         { SONYPI_EVENT_FNKEY_F8,                KEY_FN_F8 },
 161         { SONYPI_EVENT_FNKEY_F9,                KEY_FN_F9 },
 162         { SONYPI_EVENT_FNKEY_F10,               KEY_FN_F10 },
 163         { SONYPI_EVENT_FNKEY_F11,               KEY_FN_F11 },
 164         { SONYPI_EVENT_FNKEY_F12,               KEY_FN_F12 },
 165         { SONYPI_EVENT_FNKEY_1,                 KEY_FN_1 },
 166         { SONYPI_EVENT_FNKEY_2,                 KEY_FN_2 },
 167         { SONYPI_EVENT_FNKEY_D,                 KEY_FN_D },
 168         { SONYPI_EVENT_FNKEY_E,                 KEY_FN_E },
 169         { SONYPI_EVENT_FNKEY_F,                 KEY_FN_F },
 170         { SONYPI_EVENT_FNKEY_S,                 KEY_FN_S },
 171         { SONYPI_EVENT_FNKEY_B,                 KEY_FN_B },
 172         { SONYPI_EVENT_BLUETOOTH_PRESSED,       KEY_BLUE },
 173         { SONYPI_EVENT_BLUETOOTH_ON,            KEY_BLUE },
 174         { SONYPI_EVENT_PKEY_P1,                 KEY_PROG1 },
 175         { SONYPI_EVENT_PKEY_P2,                 KEY_PROG2 },
 176         { SONYPI_EVENT_PKEY_P3,                 KEY_PROG3 },
 177         { SONYPI_EVENT_BACK_PRESSED,            KEY_BACK },
 178         { SONYPI_EVENT_HELP_PRESSED,            KEY_HELP },
 179         { SONYPI_EVENT_ZOOM_PRESSED,            KEY_ZOOM },
 180         { SONYPI_EVENT_WIRELESS_ON,             KEY_WLAN },
 181         { SONYPI_EVENT_WIRELESS_OFF,            KEY_WLAN },
 182         { SONYPI_EVENT_THUMBPHRASE_PRESSED,     BTN_THUMB },
 183         { 0, 0 },
 184 };
 185
 186 /* release buttons after a short delay if pressed */
 187 static void do_sony_laptop_release_key(struct work_struct *work)
 188 {
 189         struct sony_laptop_keypress kp;
 190
 191         while (kfifo_get(sony_laptop_input.fifo, (unsigned char *)&kp,
 192                          sizeof(kp)) == sizeof(kp)) {
 193                 msleep(10);
 194                 input_report_key(kp.dev, kp.key, 0);
 195                 input_sync(kp.dev);
 196         }
 197 }
 198 static DECLARE_WORK(sony_laptop_release_key_work,
 199                 do_sony_laptop_release_key);
 200
 201 /* forward event to the input subsytem */
 202 static void sony_laptop_report_input_event(u8 event)
 203 {
 204         struct input_dev *jog_dev = sony_laptop_input.jog_dev;
 205         struct input_dev *key_dev = sony_laptop_input.key_dev;
 206         struct sony_laptop_keypress kp = { NULL };
 207         int i;
 208
 209         if (event == SONYPI_EVENT_FNKEY_RELEASED) {
 210                 /* Nothing, not all VAIOs generate this event */
 211                 return;
 212         }
 213
 214         /* report events */
 215         switch (event) {
 216         /* jog_dev events */
 217         case SONYPI_EVENT_JOGDIAL_UP:
 218         case SONYPI_EVENT_JOGDIAL_UP_PRESSED:
 219                 input_report_rel(jog_dev, REL_WHEEL, 1);
 220                 input_sync(jog_dev);
 221                 return;
 222
 223         case SONYPI_EVENT_JOGDIAL_DOWN:
 224         case SONYPI_EVENT_JOGDIAL_DOWN_PRESSED:
 225                 input_report_rel(jog_dev, REL_WHEEL, -1);
 226                 input_sync(jog_dev);
 227                 return;
 228
 229         /* key_dev events */
 230         case SONYPI_EVENT_JOGDIAL_PRESSED:
 231                 kp.key = BTN_MIDDLE;
 232                 kp.dev = jog_dev;
 233                 break;
 234
 235         default:
 236                 for (i = 0; sony_laptop_inputkeys[i].sonypiev; i++)
 237                         if (event == sony_laptop_inputkeys[i].sonypiev) {
 238                                 kp.dev = key_dev;
 239                                 kp.key = sony_laptop_inputkeys[i].inputev;
 240                                 break;
 241                         }
 242                 break;
 243         }
 244
 245         if (kp.dev) {
 246                 input_report_key(kp.dev, kp.key, 1);
 247                 input_sync(kp.dev);
 248                 kfifo_put(sony_laptop_input.fifo,
 249                           (unsigned char *)&kp, sizeof(kp));
 250
 251                 if (!work_pending(&sony_laptop_release_key_work))
 252                         queue_work(sony_laptop_input.wq,
 253                                         &sony_laptop_release_key_work);
 254         } else
 255                 dprintk("unknown input event %.2x\n", event);
 256 }
 257
 258 static int sony_laptop_setup_input(void)
 259 {
 260         struct input_dev *jog_dev;
 261         struct input_dev *key_dev;
 262         int i;
 263         int error;
 264
 265         /* don't run again if already initialized */
 266         if (atomic_add_return(1, &sony_laptop_input.users) > 1)
 267                 return 0;
 268
 269         /* kfifo */
 270         spin_lock_init(&sony_laptop_input.fifo_lock);
 271         sony_laptop_input.fifo =
 272                 kfifo_alloc(SONY_LAPTOP_BUF_SIZE, GFP_KERNEL,
 273                             &sony_laptop_input.fifo_lock);
 274         if (IS_ERR(sony_laptop_input.fifo)) {
 275                 printk(KERN_ERR DRV_PFX "kfifo_alloc failed\n");
 276                 error = PTR_ERR(sony_laptop_input.fifo);
 277                 goto err_dec_users;
 278         }
 279
 280         /* init workqueue */
 281         sony_laptop_input.wq = create_singlethread_workqueue("sony-laptop");
 282         if (!sony_laptop_input.wq) {
 283                 printk(KERN_ERR DRV_PFX
 284                                 "Unabe to create workqueue.\n");
 285                 error = -ENXIO;
 286                 goto err_free_kfifo;
 287         }
 288
 289         /* input keys */
 290         key_dev = input_allocate_device();
 291         if (!key_dev) {
 292                 error = -ENOMEM;
 293                 goto err_destroy_wq;
 294         }
 295
 296         key_dev->name = "Sony Vaio Keys";
 297         key_dev->id.bustype = BUS_ISA;
 298         key_dev->id.vendor = PCI_VENDOR_ID_SONY;
 299
 300         /* Initialize the Input Drivers: special keys */
 301         key_dev->evbit[0] = BIT(EV_KEY);
 302         for (i = 0; sony_laptop_inputkeys[i].sonypiev; i++)
 303                 if (sony_laptop_inputkeys[i].inputev)
 304                         set_bit(sony_laptop_inputkeys[i].inputev,
 305                                         key_dev->keybit);
 306
 307         error = input_register_device(key_dev);
 308         if (error)
 309                 goto err_free_keydev;
 310
 311         sony_laptop_input.key_dev = key_dev;
 312
 313         /* jogdial */
 314         jog_dev = input_allocate_device();
 315         if (!jog_dev) {
 316                 error = -ENOMEM;
 317                 goto err_unregister_keydev;
 318         }
 319
 320         jog_dev->name = "Sony Vaio Jogdial";
 321         jog_dev->id.bustype = BUS_ISA;
 322         jog_dev->id.vendor = PCI_VENDOR_ID_SONY;
 323
 324         jog_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REL);
 325         jog_dev->keybit[LONG(BTN_MOUSE)] = BIT(BTN_MIDDLE);
 326         jog_dev->relbit[0] = BIT(REL_WHEEL);
 327
 328         error = input_register_device(jog_dev);
 329         if (error)
 330                 goto err_free_jogdev;
 331
 332         sony_laptop_input.jog_dev = jog_dev;
 333
 334         return 0;
 335
 336 err_free_jogdev:
 337         input_free_device(jog_dev);
 338
 339 err_unregister_keydev:
 340         input_unregister_device(key_dev);
 341         /* to avoid kref underflow below at input_free_device */
 342         key_dev = NULL;
 343
 344 err_free_keydev:
 345         input_free_device(key_dev);
 346
 347 err_destroy_wq:
 348         destroy_workqueue(sony_laptop_input.wq);
 349
 350 err_free_kfifo:
 351         kfifo_free(sony_laptop_input.fifo);
 352
 353 err_dec_users:
 354         atomic_dec(&sony_laptop_input.users);
 355         return error;
 356 }
 357
 358 static void sony_laptop_remove_input(void)
 359 {
 360         /* cleanup only after the last user has gone */
 361         if (!atomic_dec_and_test(&sony_laptop_input.users))
 362                 return;
 363
 364         /* flush workqueue first */
 365         flush_workqueue(sony_laptop_input.wq);
 366
 367         /* destroy input devs */
 368         input_unregister_device(sony_laptop_input.key_dev);
 369         sony_laptop_input.key_dev = NULL;
 370
 371         if (sony_laptop_input.jog_dev) {
 372                 input_unregister_device(sony_laptop_input.jog_dev);
 373                 sony_laptop_input.jog_dev = NULL;
 374         }
 375
 376         destroy_workqueue(sony_laptop_input.wq);
 377         kfifo_free(sony_laptop_input.fifo);
 378 }
 379
 380 /*********** Platform Device ***********/
 381
 382 static atomic_t sony_pf_users = ATOMIC_INIT(0);
 383 static struct platform_driver sony_pf_driver = {
 384         .driver = {
 385                    .name = "sony-laptop",
 386                    .owner = THIS_MODULE,
 387                    }
 388 };
 389 static struct platform_device *sony_pf_device;
 390
 391 static int sony_pf_add(void)
 392 {
 393         int ret = 0;
 394
 395         /* don't run again if already initialized */
 396         if (atomic_add_return(1, &sony_pf_users) > 1)
 397                 return 0;
 398
 399         ret = platform_driver_register(&sony_pf_driver);
 400         if (ret)
 401                 goto out;
 402
 403         sony_pf_device = platform_device_alloc("sony-laptop", -1);
 404         if (!sony_pf_device) {
 405                 ret = -ENOMEM;
 406                 goto out_platform_registered;
 407         }
 408
 409         ret = platform_device_add(sony_pf_device);
 410         if (ret)
 411                 goto out_platform_alloced;
 412
 413         return 0;
 414
 415       out_platform_alloced:
 416         platform_device_put(sony_pf_device);
 417         sony_pf_device = NULL;
 418       out_platform_registered:
 419         platform_driver_unregister(&sony_pf_driver);
 420       out:
 421         atomic_dec(&sony_pf_users);
 422         return ret;
 423 }
 424
 425 static void sony_pf_remove(void)
 426 {
 427         /* deregister only after the last user has gone */
 428         if (!atomic_dec_and_test(&sony_pf_users))
 429                 return;
 430
 431         platform_device_del(sony_pf_device);
 432         platform_device_put(sony_pf_device);
 433         platform_driver_unregister(&sony_pf_driver);
 434 }
 435
 436 /*********** SNC (SNY5001) Device ***********/
 437
 438 /* the device uses 1-based values, while the backlight subsystem uses
 439    0-based values */
 440 #define SONY_MAX_BRIGHTNESS     8
 441
 442 #define SNC_VALIDATE_IN         0
 443 #define SNC_VALIDATE_OUT        1
 444
 445 static ssize_t sony_nc_sysfs_show(struct device *, struct device_attribute *,
 446                               char *);
 447 static ssize_t sony_nc_sysfs_store(struct device *, struct device_attribute *,
 448                                const char *, size_t);
 449 static int boolean_validate(const int, const int);
 450 static int brightness_default_validate(const int, const int);
 451
 452 struct sony_nc_value {
 453         char *name;             /* name of the entry */
 454         char **acpiget;         /* names of the ACPI get function */
 455         char **acpiset;         /* names of the ACPI set function */
 456         int (*validate)(const int, const int);  /* input/output validation */
 457         int value;              /* current setting */
 458         int valid;              /* Has ever been set */
 459         int debug;              /* active only in debug mode ? */
 460         struct device_attribute devattr;        /* sysfs atribute */
 461 };
 462
 463 #define SNC_HANDLE_NAMES(_name, _values...) \
 464         static char *snc_##_name[] = { _values, NULL }
 465
 466 #define SNC_HANDLE(_name, _getters, _setters, _validate, _debug) \
 467         { \
 468                 .name           = __stringify(_name), \
 469                 .acpiget        = _getters, \
 470                 .acpiset        = _setters, \
 471                 .validate       = _validate, \
 472                 .debug          = _debug, \
 473                 .devattr        = __ATTR(_name, 0, sony_nc_sysfs_show, sony_nc_sysfs_store), \
 474         }
 475
 476 #define SNC_HANDLE_NULL { .name = NULL }
 477
 478 SNC_HANDLE_NAMES(fnkey_get, "GHKE");
 479
 480 SNC_HANDLE_NAMES(brightness_def_get, "GPBR");
 481 SNC_HANDLE_NAMES(brightness_def_set, "SPBR");
 482
 483 SNC_HANDLE_NAMES(cdpower_get, "GCDP");
 484 SNC_HANDLE_NAMES(cdpower_set, "SCDP", "CDPW");
 485
 486 SNC_HANDLE_NAMES(audiopower_get, "GAZP");
 487 SNC_HANDLE_NAMES(audiopower_set, "AZPW");
 488
 489 SNC_HANDLE_NAMES(lanpower_get, "GLNP");
 490 SNC_HANDLE_NAMES(lanpower_set, "LNPW");
 491
 492 SNC_HANDLE_NAMES(lidstate_get, "GLID");
 493
 494 SNC_HANDLE_NAMES(indicatorlamp_get, "GILS");
 495 SNC_HANDLE_NAMES(indicatorlamp_set, "SILS");
 496
 497 SNC_HANDLE_NAMES(gainbass_get, "GMGB");
 498 SNC_HANDLE_NAMES(gainbass_set, "CMGB");
 499
 500 SNC_HANDLE_NAMES(PID_get, "GPID");
 501
 502 SNC_HANDLE_NAMES(CTR_get, "GCTR");
 503 SNC_HANDLE_NAMES(CTR_set, "SCTR");
 504
 505 SNC_HANDLE_NAMES(PCR_get, "GPCR");
 506 SNC_HANDLE_NAMES(PCR_set, "SPCR");
 507
 508 SNC_HANDLE_NAMES(CMI_get, "GCMI");
 509 SNC_HANDLE_NAMES(CMI_set, "SCMI");
 510
 511 static struct sony_nc_value sony_nc_values[] = {
 512         SNC_HANDLE(brightness_default, snc_brightness_def_get,
 513                         snc_brightness_def_set, brightness_default_validate, 0),
 514         SNC_HANDLE(fnkey, snc_fnkey_get, NULL, NULL, 0),
 515         SNC_HANDLE(cdpower, snc_cdpower_get, snc_cdpower_set, boolean_validate, 0),
 516         SNC_HANDLE(audiopower, snc_audiopower_get, snc_audiopower_set,
 517                         boolean_validate, 0),
 518         SNC_HANDLE(lanpower, snc_lanpower_get, snc_lanpower_set,
 519                         boolean_validate, 1),
 520         SNC_HANDLE(lidstate, snc_lidstate_get, NULL,
 521                         boolean_validate, 0),
 522         SNC_HANDLE(indicatorlamp, snc_indicatorlamp_get, snc_indicatorlamp_set,
 523                         boolean_validate, 0),
 524         SNC_HANDLE(gainbass, snc_gainbass_get, snc_gainbass_set,
 525                         boolean_validate, 0),
 526         /* unknown methods */
 527         SNC_HANDLE(PID, snc_PID_get, NULL, NULL, 1),
 528         SNC_HANDLE(CTR, snc_CTR_get, snc_CTR_set, NULL, 1),
 529         SNC_HANDLE(PCR, snc_PCR_get, snc_PCR_set, NULL, 1),
 530         SNC_HANDLE(CMI, snc_CMI_get, snc_CMI_set, NULL, 1),
 531         SNC_HANDLE_NULL
 532 };
 533
 534 static acpi_handle sony_nc_acpi_handle;
 535 static struct acpi_device *sony_nc_acpi_device = NULL;
 536
 537 /*
 538  * acpi_evaluate_object wrappers
 539  */
 540 static int acpi_callgetfunc(acpi_handle handle, char *name, int *result)
 541 {
 542         struct acpi_buffer output;
 543         union acpi_object out_obj;
 544         acpi_status status;
 545
 546         output.length = sizeof(out_obj);
 547         output.pointer = &out_obj;
 548
 549         status = acpi_evaluate_object(handle, name, NULL, &output);
 550         if ((status == AE_OK) && (out_obj.type == ACPI_TYPE_INTEGER)) {
 551                 *result = out_obj.integer.value;
 552                 return 0;
 553         }
 554
 555         printk(KERN_WARNING DRV_PFX "acpi_callreadfunc failed\n");
 556
 557         return -1;
 558 }
 559
 560 static int acpi_callsetfunc(acpi_handle handle, char *name, int value,
 561                             int *result)
 562 {
 563         struct acpi_object_list params;
 564         union acpi_object in_obj;
 565         struct acpi_buffer output;
 566         union acpi_object out_obj;
 567         acpi_status status;
 568
 569         params.count = 1;
 570         params.pointer = &in_obj;
 571         in_obj.type = ACPI_TYPE_INTEGER;
 572         in_obj.integer.value = value;
 573
 574         output.length = sizeof(out_obj);
 575         output.pointer = &out_obj;
 576
 577         status = acpi_evaluate_object(handle, name, &params, &output);
 578         if (status == AE_OK) {
 579                 if (result != NULL) {
 580                         if (out_obj.type != ACPI_TYPE_INTEGER) {
 581                                 printk(KERN_WARNING DRV_PFX "acpi_evaluate_object bad "
 582                                        "return type\n");
 583                                 return -1;
 584                         }
 585                         *result = out_obj.integer.value;
 586                 }
 587                 return 0;
 588         }
 589
 590         printk(KERN_WARNING DRV_PFX "acpi_evaluate_object failed\n");
 591
 592         return -1;
 593 }
 594
 595 /*
 596  * sony_nc_values input/output validate functions
 597  */
 598
 599 /* brightness_default_validate:
 600  *
 601  * manipulate input output values to keep consistency with the
 602  * backlight framework for which brightness values are 0-based.
 603  */
 604 static int brightness_default_validate(const int direction, const int value)
 605 {
 606         switch (direction) {
 607                 case SNC_VALIDATE_OUT:
 608                         return value - 1;
 609                 case SNC_VALIDATE_IN:
 610                         if (value >= 0 && value < SONY_MAX_BRIGHTNESS)
 611                                 return value + 1;
 612         }
 613         return -EINVAL;
 614 }
 615
 616 /* boolean_validate:
 617  *
 618  * on input validate boolean values 0/1, on output just pass the
 619  * received value.
 620  */
 621 static int boolean_validate(const int direction, const int value)
 622 {
 623         if (direction == SNC_VALIDATE_IN) {
 624                 if (value != 0 && value != 1)
 625                         return -EINVAL;
 626         }
 627         return value;
 628 }
 629
 630 /*
 631  * Sysfs show/store common to all sony_nc_values
 632  */
 633 static ssize_t sony_nc_sysfs_show(struct device *dev, struct device_attribute *attr,
 634                               char *buffer)
 635 {
 636         int value;
 637         struct sony_nc_value *item =
 638             container_of(attr, struct sony_nc_value, devattr);
 639
 640         if (!*item->acpiget)
 641                 return -EIO;
 642
 643         if (acpi_callgetfunc(sony_nc_acpi_handle, *item->acpiget, &value) < 0)
 644                 return -EIO;
 645
 646         if (item->validate)
 647                 value = item->validate(SNC_VALIDATE_OUT, value);
 648
 649         return snprintf(buffer, PAGE_SIZE, "%d\n", value);
 650 }
 651
 652 static ssize_t sony_nc_sysfs_store(struct device *dev,
 653                                struct device_attribute *attr,
 654                                const char *buffer, size_t count)
 655 {
 656         int value;
 657         struct sony_nc_value *item =
 658             container_of(attr, struct sony_nc_value, devattr);
 659
 660         if (!item->acpiset)
 661                 return -EIO;
 662
 663         if (count > 31)
 664                 return -EINVAL;
 665
 666         value = simple_strtoul(buffer, NULL, 10);
 667
 668         if (item->validate)
 669                 value = item->validate(SNC_VALIDATE_IN, value);
 670
 671         if (value < 0)
 672                 return value;
 673
 674         if (acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset, value, NULL) < 0)
 675                 return -EIO;
 676         item->value = value;
 677         item->valid = 1;
 678         return count;
 679 }
 680
 681
 682 /*
 683  * Backlight device
 684  */
 685 static int sony_backlight_update_status(struct backlight_device *bd)
 686 {
 687         return acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
 688                                 bd->props.brightness + 1, NULL);
 689 }
 690
 691 static int sony_backlight_get_brightness(struct backlight_device *bd)
 692 {
 693         int value;
 694
 695         if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value))
 696                 return 0;
 697         /* brightness levels are 1-based, while backlight ones are 0-based */
 698         return value - 1;
 699 }
 700
 701 static struct backlight_device *sony_backlight_device;
 702 static struct backlight_ops sony_backlight_ops = {
 703         .update_status = sony_backlight_update_status,
 704         .get_brightness = sony_backlight_get_brightness,
 705 };
 706
 707 /*
 708  * New SNC-only Vaios event mapping to driver known keys
 709  */
 710 struct sony_nc_event {
 711         u8      data;
 712         u8      event;
 713 };
 714
 715 static struct sony_nc_event *sony_nc_events;
 716
 717 /* Vaio C* --maybe also FE*, N* and AR* ?-- special init sequence
 718  * for Fn keys
 719  */
 720 static int sony_nc_C_enable(struct dmi_system_id *id)
 721 {
 722         int result = 0;
 723
 724         printk(KERN_NOTICE DRV_PFX "detected %s\n", id->ident);
 725
 726         sony_nc_events = id->driver_data;
 727
 728         if (acpi_callsetfunc(sony_nc_acpi_handle, "SN02", 0x4, &result) < 0
 729                         || acpi_callsetfunc(sony_nc_acpi_handle, "SN07", 0x2, &result) < 0
 730                         || acpi_callsetfunc(sony_nc_acpi_handle, "SN02", 0x10, &result) < 0
 731                         || acpi_callsetfunc(sony_nc_acpi_handle, "SN07", 0x0, &result) < 0
 732                         || acpi_callsetfunc(sony_nc_acpi_handle, "SN03", 0x2, &result) < 0
 733                         || acpi_callsetfunc(sony_nc_acpi_handle, "SN07", 0x101, &result) < 0) {
 734                 printk(KERN_WARNING DRV_PFX "failed to initialize SNC, some "
 735                                 "functionalities may be missing\n");
 736                 return 1;
 737         }
 738         return 0;
 739 }
 740
 741 static struct sony_nc_event sony_C_events[] = {
 742         { 0x81, SONYPI_EVENT_FNKEY_F1 },
 743         { 0x01, SONYPI_EVENT_FNKEY_RELEASED },
 744         { 0x85, SONYPI_EVENT_FNKEY_F5 },
 745         { 0x05, SONYPI_EVENT_FNKEY_RELEASED },
 746         { 0x86, SONYPI_EVENT_FNKEY_F6 },
 747         { 0x06, SONYPI_EVENT_FNKEY_RELEASED },
 748         { 0x87, SONYPI_EVENT_FNKEY_F7 },
 749         { 0x07, SONYPI_EVENT_FNKEY_RELEASED },
 750         { 0x8A, SONYPI_EVENT_FNKEY_F10 },
 751         { 0x0A, SONYPI_EVENT_FNKEY_RELEASED },
 752         { 0x8C, SONYPI_EVENT_FNKEY_F12 },
 753         { 0x0C, SONYPI_EVENT_FNKEY_RELEASED },
 754         { 0, 0 },
 755 };
 756
 757 /* SNC-only model map */
 758 struct dmi_system_id sony_nc_ids[] = {
 759                 {
 760                         .ident = "Sony Vaio C Series",
 761                         .callback = sony_nc_C_enable,
 762                         .driver_data = sony_C_events,
 763                         .matches = {
 764                                 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
 765                                 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-C"),
 766                         },
 767                 },
 768                 { }
 769 };
 770
 771 /*
 772  * ACPI callbacks
 773  */
 774 static void sony_acpi_notify(acpi_handle handle, u32 event, void *data)
 775 {
 776         struct sony_nc_event *evmap;
 777         u32 ev = event;
 778         int result;
 779
 780         if (ev == 0x92) {
 781                 /* read the key pressed from EC.GECR
 782                  * A call to SN07 with 0x0202 will do it as well respecting
 783                  * the current protocol on different OSes
 784                  *
 785                  * Note: the path for GECR may be
 786                  *   \_SB.PCI0.LPCB.EC (C, FE, AR, N and friends)
 787                  *   \_SB.PCI0.PIB.EC0 (VGN-FR notifications are sent directly, no GECR)
 788                  *
 789                  * TODO: we may want to do the same for the older GHKE -need
 790                  *       dmi list- so this snippet may become one more callback.
 791                  */
 792                 if (acpi_callsetfunc(handle, "SN07", 0x0202, &result) < 0)
 793                         dprintk("sony_acpi_notify, unable to decode event 0x%.2x\n", ev);
 794                 else
 795                         ev = result & 0xFF;
 796         }
 797
 798         if (sony_nc_events)
 799                 for (evmap = sony_nc_events; evmap->event; evmap++) {
 800                         if (evmap->data == ev) {
 801                                 ev = evmap->event;
 802                                 break;
 803                         }
 804                 }
 805
 806         dprintk("sony_acpi_notify, event: 0x%.2x\n", ev);
 807         sony_laptop_report_input_event(ev);
 808         acpi_bus_generate_event(sony_nc_acpi_device, 1, ev);
 809 }
 810
 811 static acpi_status sony_walk_callback(acpi_handle handle, u32 level,
 812                                       void *context, void **return_value)
 813 {
 814         struct acpi_namespace_node *node;
 815         union acpi_operand_object *operand;
 816
 817         node = (struct acpi_namespace_node *)handle;
 818         operand = (union acpi_operand_object *)node->object;
 819
 820         printk(KERN_WARNING DRV_PFX "method: name: %4.4s, args %X\n", node->name.ascii,
 821                (u32) operand->method.param_count);
 822
 823         return AE_OK;
 824 }
 825
 826 /*
 827  * ACPI device
 828  */
 829 static int sony_nc_resume(struct acpi_device *device)
 830 {
 831         struct sony_nc_value *item;
 832
 833         for (item = sony_nc_values; item->name; item++) {
 834                 int ret;
 835
 836                 if (!item->valid)
 837                         continue;
 838                 ret = acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset,
 839                                        item->value, NULL);
 840                 if (ret < 0) {
 841                         printk("%s: %d\n", __FUNCTION__, ret);
 842                         break;
 843                 }
 844         }
 845
 846         /* re-initialize models with specific requirements */
 847         dmi_check_system(sony_nc_ids);
 848
 849         return 0;
 850 }
 851
 852 static int sony_nc_add(struct acpi_device *device)
 853 {
 854         acpi_status status;
 855         int result = 0;
 856         acpi_handle handle;
 857         struct sony_nc_value *item;
 858
 859         printk(KERN_INFO DRV_PFX "%s v%s.\n",
 860                 SONY_NC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
 861
 862         sony_nc_acpi_device = device;
 863         strcpy(acpi_device_class(device), "sony/hotkey");
 864
 865         sony_nc_acpi_handle = device->handle;
 866
 867         /* read device status */
 868         result = acpi_bus_get_status(device);
 869         /* bail IFF the above call was successful and the device is not present */
 870         if (!result && !device->status.present) {
 871                 dprintk("Device not present\n");
 872                 result = -ENODEV;
 873                 goto outwalk;
 874         }
 875
 876         if (debug) {
 877                 status = acpi_walk_namespace(ACPI_TYPE_METHOD, sony_nc_acpi_handle,
 878                                              1, sony_walk_callback, NULL, NULL);
 879                 if (ACPI_FAILURE(status)) {
 880                         printk(KERN_WARNING DRV_PFX "unable to walk acpi resources\n");
 881                         result = -ENODEV;
 882                         goto outwalk;
 883                 }
 884         }
 885
 886         /* try to _INI the device if such method exists (ACPI spec 3.0-6.5.1
 887          * should be respected as we already checked for the device presence above */
 888         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, METHOD_NAME__INI, &handle))) {
 889                 dprintk("Invoking _INI\n");
 890                 if (ACPI_FAILURE(acpi_evaluate_object(sony_nc_acpi_handle, METHOD_NAME__INI,
 891                                                 NULL, NULL)))
 892                         dprintk("_INI Method failed\n");
 893         }
 894
 895         /* setup input devices and helper fifo */
 896         result = sony_laptop_setup_input();
 897         if (result) {
 898                 printk(KERN_ERR DRV_PFX
 899                                 "Unabe to create input devices.\n");
 900                 goto outwalk;
 901         }
 902
 903         status = acpi_install_notify_handler(sony_nc_acpi_handle,
 904                                              ACPI_DEVICE_NOTIFY,
 905                                              sony_acpi_notify, NULL);
 906         if (ACPI_FAILURE(status)) {
 907                 printk(KERN_WARNING DRV_PFX "unable to install notify handler (%u)\n", status);
 908                 result = -ENODEV;
 909                 goto outinput;
 910         }
 911
 912         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT", &handle))) {
 913                 sony_backlight_device = backlight_device_register("sony", NULL,
 914                                                                   NULL,
 915                                                                   &sony_backlight_ops);
 916
 917                 if (IS_ERR(sony_backlight_device)) {
 918                         printk(KERN_WARNING DRV_PFX "unable to register backlight device\n");
 919                         sony_backlight_device = NULL;
 920                 } else {
 921                         sony_backlight_device->props.brightness =
 922                             sony_backlight_get_brightness
 923                             (sony_backlight_device);
 924                         sony_backlight_device->props.max_brightness =
 925                             SONY_MAX_BRIGHTNESS - 1;
 926                 }
 927
 928         }
 929
 930         /* initialize models with specific requirements */
 931         dmi_check_system(sony_nc_ids);
 932
 933         result = sony_pf_add();
 934         if (result)
 935                 goto outbacklight;
 936
 937         /* create sony_pf sysfs attributes related to the SNC device */
 938         for (item = sony_nc_values; item->name; ++item) {
 939
 940                 if (!debug && item->debug)
 941                         continue;
 942
 943                 /* find the available acpiget as described in the DSDT */
 944                 for (; item->acpiget && *item->acpiget; ++item->acpiget) {
 945                         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
 946                                                          *item->acpiget,
 947                                                          &handle))) {
 948                                 dprintk("Found %s getter: %s\n",
 949                                                 item->name, *item->acpiget);
 950                                 item->devattr.attr.mode |= S_IRUGO;
 951                                 break;
 952                         }
 953                 }
 954
 955                 /* find the available acpiset as described in the DSDT */
 956                 for (; item->acpiset && *item->acpiset; ++item->acpiset) {
 957                         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
 958                                                          *item->acpiset,
 959                                                          &handle))) {
 960                                 dprintk("Found %s setter: %s\n",
 961                                                 item->name, *item->acpiset);
 962                                 item->devattr.attr.mode |= S_IWUSR;
 963                                 break;
 964                         }
 965                 }
 966
 967                 if (item->devattr.attr.mode != 0) {
 968                         result =
 969                             device_create_file(&sony_pf_device->dev,
 970                                                &item->devattr);
 971                         if (result)
 972                                 goto out_sysfs;
 973                 }
 974         }
 975
 976         return 0;
 977
 978       out_sysfs:
 979         for (item = sony_nc_values; item->name; ++item) {
 980                 device_remove_file(&sony_pf_device->dev, &item->devattr);
 981         }
 982         sony_pf_remove();
 983
 984       outbacklight:
 985         if (sony_backlight_device)
 986                 backlight_device_unregister(sony_backlight_device);
 987
 988         status = acpi_remove_notify_handler(sony_nc_acpi_handle,
 989                                             ACPI_DEVICE_NOTIFY,
 990                                             sony_acpi_notify);
 991         if (ACPI_FAILURE(status))
 992                 printk(KERN_WARNING DRV_PFX "unable to remove notify handler\n");
 993
 994       outinput:
 995         sony_laptop_remove_input();
 996
 997       outwalk:
 998         return result;
 999 }
1000
1001 static int sony_nc_remove(struct acpi_device *device, int type)
1002 {
1003         acpi_status status;
1004         struct sony_nc_value *item;
1005
1006         if (sony_backlight_device)
1007                 backlight_device_unregister(sony_backlight_device);
1008
1009         sony_nc_acpi_device = NULL;
1010
1011         status = acpi_remove_notify_handler(sony_nc_acpi_handle,
1012                                             ACPI_DEVICE_NOTIFY,
1013                                             sony_acpi_notify);
1014         if (ACPI_FAILURE(status))
1015                 printk(KERN_WARNING DRV_PFX "unable to remove notify handler\n");
1016
1017         for (item = sony_nc_values; item->name; ++item) {
1018                 device_remove_file(&sony_pf_device->dev, &item->devattr);
1019         }
1020
1021         sony_pf_remove();
1022         sony_laptop_remove_input();
1023         dprintk(SONY_NC_DRIVER_NAME " removed.\n");
1024
1025         return 0;
1026 }
1027
1028 static struct acpi_driver sony_nc_driver = {
1029         .name = SONY_NC_DRIVER_NAME,
1030         .class = SONY_NC_CLASS,
1031         .ids = SONY_NC_HID,
1032         .owner = THIS_MODULE,
1033         .ops = {
1034                 .add = sony_nc_add,
1035                 .remove = sony_nc_remove,
1036                 .resume = sony_nc_resume,
1037                 },
1038 };
1039
1040 /*********** SPIC (SNY6001) Device ***********/
1041
1042 #define SONYPI_DEVICE_TYPE1     0x00000001
1043 #define SONYPI_DEVICE_TYPE2     0x00000002
1044 #define SONYPI_DEVICE_TYPE3     0x00000004
1045
1046 #define SONY_PIC_EV_MASK        0xff
1047
1048 struct sony_pic_ioport {
1049         struct acpi_resource_io io;
1050         struct list_head        list;
1051 };
1052
1053 struct sony_pic_irq {
1054         struct acpi_resource_irq        irq;
1055         struct list_head                list;
1056 };
1057
1058 struct sony_pic_dev {
1059         int                     model;
1060         u8                      camera_power;
1061         u8                      bluetooth_power;
1062         u8                      wwan_power;
1063         struct acpi_device      *acpi_dev;
1064         struct sony_pic_irq     *cur_irq;
1065         struct sony_pic_ioport  *cur_ioport;
1066         struct list_head        interrupts;
1067         struct list_head        ioports;
1068         struct mutex            lock;
1069 };
1070
1071 static struct sony_pic_dev spic_dev = {
1072         .interrupts     = LIST_HEAD_INIT(spic_dev.interrupts),
1073         .ioports        = LIST_HEAD_INIT(spic_dev.ioports),
1074 };
1075
1076 /* Event masks */
1077 #define SONYPI_JOGGER_MASK                      0x00000001
1078 #define SONYPI_CAPTURE_MASK                     0x00000002
1079 #define SONYPI_FNKEY_MASK                       0x00000004
1080 #define SONYPI_BLUETOOTH_MASK                   0x00000008
1081 #define SONYPI_PKEY_MASK                        0x00000010
1082 #define SONYPI_BACK_MASK                        0x00000020
1083 #define SONYPI_HELP_MASK                        0x00000040
1084 #define SONYPI_LID_MASK                         0x00000080
1085 #define SONYPI_ZOOM_MASK                        0x00000100
1086 #define SONYPI_THUMBPHRASE_MASK                 0x00000200
1087 #define SONYPI_MEYE_MASK                        0x00000400
1088 #define SONYPI_MEMORYSTICK_MASK                 0x00000800
1089 #define SONYPI_BATTERY_MASK                     0x00001000
1090 #define SONYPI_WIRELESS_MASK                    0x00002000
1091
1092 struct sonypi_event {
1093         u8      data;
1094         u8      event;
1095 };
1096
1097 /* The set of possible button release events */
1098 static struct sonypi_event sonypi_releaseev[] = {
1099         { 0x00, SONYPI_EVENT_ANYBUTTON_RELEASED },
1100         { 0, 0 }
1101 };
1102
1103 /* The set of possible jogger events  */
1104 static struct sonypi_event sonypi_joggerev[] = {
1105         { 0x1f, SONYPI_EVENT_JOGDIAL_UP },
1106         { 0x01, SONYPI_EVENT_JOGDIAL_DOWN },
1107         { 0x5f, SONYPI_EVENT_JOGDIAL_UP_PRESSED },
1108         { 0x41, SONYPI_EVENT_JOGDIAL_DOWN_PRESSED },
1109         { 0x1e, SONYPI_EVENT_JOGDIAL_FAST_UP },
1110         { 0x02, SONYPI_EVENT_JOGDIAL_FAST_DOWN },
1111         { 0x5e, SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED },
1112         { 0x42, SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED },
1113         { 0x1d, SONYPI_EVENT_JOGDIAL_VFAST_UP },
1114         { 0x03, SONYPI_EVENT_JOGDIAL_VFAST_DOWN },
1115         { 0x5d, SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED },
1116         { 0x43, SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED },
1117         { 0x40, SONYPI_EVENT_JOGDIAL_PRESSED },
1118         { 0, 0 }
1119 };
1120
1121 /* The set of possible capture button events */
1122 static struct sonypi_event sonypi_captureev[] = {
1123         { 0x05, SONYPI_EVENT_CAPTURE_PARTIALPRESSED },
1124         { 0x07, SONYPI_EVENT_CAPTURE_PRESSED },
1125         { 0x01, SONYPI_EVENT_CAPTURE_PARTIALRELEASED },
1126         { 0, 0 }
1127 };
1128
1129 /* The set of possible fnkeys events */
1130 static struct sonypi_event sonypi_fnkeyev[] = {
1131         { 0x10, SONYPI_EVENT_FNKEY_ESC },
1132         { 0x11, SONYPI_EVENT_FNKEY_F1 },
1133         { 0x12, SONYPI_EVENT_FNKEY_F2 },
1134         { 0x13, SONYPI_EVENT_FNKEY_F3 },
1135         { 0x14, SONYPI_EVENT_FNKEY_F4 },
1136         { 0x15, SONYPI_EVENT_FNKEY_F5 },
1137         { 0x16, SONYPI_EVENT_FNKEY_F6 },
1138         { 0x17, SONYPI_EVENT_FNKEY_F7 },
1139         { 0x18, SONYPI_EVENT_FNKEY_F8 },
1140         { 0x19, SONYPI_EVENT_FNKEY_F9 },
1141         { 0x1a, SONYPI_EVENT_FNKEY_F10 },
1142         { 0x1b, SONYPI_EVENT_FNKEY_F11 },
1143         { 0x1c, SONYPI_EVENT_FNKEY_F12 },
1144         { 0x1f, SONYPI_EVENT_FNKEY_RELEASED },
1145         { 0x21, SONYPI_EVENT_FNKEY_1 },
1146         { 0x22, SONYPI_EVENT_FNKEY_2 },
1147         { 0x31, SONYPI_EVENT_FNKEY_D },
1148         { 0x32, SONYPI_EVENT_FNKEY_E },
1149         { 0x33, SONYPI_EVENT_FNKEY_F },
1150         { 0x34, SONYPI_EVENT_FNKEY_S },
1151         { 0x35, SONYPI_EVENT_FNKEY_B },
1152         { 0x36, SONYPI_EVENT_FNKEY_ONLY },
1153         { 0, 0 }
1154 };
1155
1156 /* The set of possible program key events */
1157 static struct sonypi_event sonypi_pkeyev[] = {
1158         { 0x01, SONYPI_EVENT_PKEY_P1 },
1159         { 0x02, SONYPI_EVENT_PKEY_P2 },
1160         { 0x04, SONYPI_EVENT_PKEY_P3 },
1161         { 0x5c, SONYPI_EVENT_PKEY_P1 },
1162         { 0, 0 }
1163 };
1164
1165 /* The set of possible bluetooth events */
1166 static struct sonypi_event sonypi_blueev[] = {
1167         { 0x55, SONYPI_EVENT_BLUETOOTH_PRESSED },
1168         { 0x59, SONYPI_EVENT_BLUETOOTH_ON },
1169         { 0x5a, SONYPI_EVENT_BLUETOOTH_OFF },
1170         { 0, 0 }
1171 };
1172
1173 /* The set of possible wireless events */
1174 static struct sonypi_event sonypi_wlessev[] = {
1175         { 0x59, SONYPI_EVENT_WIRELESS_ON },
1176         { 0x5a, SONYPI_EVENT_WIRELESS_OFF },
1177         { 0, 0 }
1178 };
1179
1180 /* The set of possible back button events */
1181 static struct sonypi_event sonypi_backev[] = {
1182         { 0x20, SONYPI_EVENT_BACK_PRESSED },
1183         { 0, 0 }
1184 };
1185
1186 /* The set of possible help button events */
1187 static struct sonypi_event sonypi_helpev[] = {
1188         { 0x3b, SONYPI_EVENT_HELP_PRESSED },
1189         { 0, 0 }
1190 };
1191
1192
1193 /* The set of possible lid events */
1194 static struct sonypi_event sonypi_lidev[] = {
1195         { 0x51, SONYPI_EVENT_LID_CLOSED },
1196         { 0x50, SONYPI_EVENT_LID_OPENED },
1197         { 0, 0 }
1198 };
1199
1200 /* The set of possible zoom events */
1201 static struct sonypi_event sonypi_zoomev[] = {
1202         { 0x39, SONYPI_EVENT_ZOOM_PRESSED },
1203         { 0, 0 }
1204 };
1205
1206 /* The set of possible thumbphrase events */
1207 static struct sonypi_event sonypi_thumbphraseev[] = {
1208         { 0x3a, SONYPI_EVENT_THUMBPHRASE_PRESSED },
1209         { 0, 0 }
1210 };
1211
1212 /* The set of possible motioneye camera events */
1213 static struct sonypi_event sonypi_meyeev[] = {
1214         { 0x00, SONYPI_EVENT_MEYE_FACE },
1215         { 0x01, SONYPI_EVENT_MEYE_OPPOSITE },
1216         { 0, 0 }
1217 };
1218
1219 /* The set of possible memorystick events */
1220 static struct sonypi_event sonypi_memorystickev[] = {
1221         { 0x53, SONYPI_EVENT_MEMORYSTICK_INSERT },
1222         { 0x54, SONYPI_EVENT_MEMORYSTICK_EJECT },
1223         { 0, 0 }
1224 };
1225
1226 /* The set of possible battery events */
1227 static struct sonypi_event sonypi_batteryev[] = {
1228         { 0x20, SONYPI_EVENT_BATTERY_INSERT },
1229         { 0x30, SONYPI_EVENT_BATTERY_REMOVE },
1230         { 0, 0 }
1231 };
1232
1233 static struct sonypi_eventtypes {
1234         int                     model;
1235         u8                      data;
1236         unsigned long           mask;
1237         struct sonypi_event *   events;
1238 } sony_pic_eventtypes[] = {
1239         { SONYPI_DEVICE_TYPE1, 0, 0xffffffff, sonypi_releaseev },
1240         { SONYPI_DEVICE_TYPE1, 0x70, SONYPI_MEYE_MASK, sonypi_meyeev },
1241         { SONYPI_DEVICE_TYPE1, 0x30, SONYPI_LID_MASK, sonypi_lidev },
1242         { SONYPI_DEVICE_TYPE1, 0x60, SONYPI_CAPTURE_MASK, sonypi_captureev },
1243         { SONYPI_DEVICE_TYPE1, 0x10, SONYPI_JOGGER_MASK, sonypi_joggerev },
1244         { SONYPI_DEVICE_TYPE1, 0x20, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1245         { SONYPI_DEVICE_TYPE1, 0x30, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
1246         { SONYPI_DEVICE_TYPE1, 0x40, SONYPI_PKEY_MASK, sonypi_pkeyev },
1247         { SONYPI_DEVICE_TYPE1, 0x30, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1248         { SONYPI_DEVICE_TYPE1, 0x40, SONYPI_BATTERY_MASK, sonypi_batteryev },
1249
1250         { SONYPI_DEVICE_TYPE2, 0, 0xffffffff, sonypi_releaseev },
1251         { SONYPI_DEVICE_TYPE2, 0x38, SONYPI_LID_MASK, sonypi_lidev },
1252         { SONYPI_DEVICE_TYPE2, 0x11, SONYPI_JOGGER_MASK, sonypi_joggerev },
1253         { SONYPI_DEVICE_TYPE2, 0x61, SONYPI_CAPTURE_MASK, sonypi_captureev },
1254         { SONYPI_DEVICE_TYPE2, 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1255         { SONYPI_DEVICE_TYPE2, 0x31, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
1256         { SONYPI_DEVICE_TYPE2, 0x08, SONYPI_PKEY_MASK, sonypi_pkeyev },
1257         { SONYPI_DEVICE_TYPE2, 0x11, SONYPI_BACK_MASK, sonypi_backev },
1258         { SONYPI_DEVICE_TYPE2, 0x21, SONYPI_HELP_MASK, sonypi_helpev },
1259         { SONYPI_DEVICE_TYPE2, 0x21, SONYPI_ZOOM_MASK, sonypi_zoomev },
1260         { SONYPI_DEVICE_TYPE2, 0x20, SONYPI_THUMBPHRASE_MASK, sonypi_thumbphraseev },
1261         { SONYPI_DEVICE_TYPE2, 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1262         { SONYPI_DEVICE_TYPE2, 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
1263         { SONYPI_DEVICE_TYPE2, 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
1264
1265         { SONYPI_DEVICE_TYPE3, 0, 0xffffffff, sonypi_releaseev },
1266         { SONYPI_DEVICE_TYPE3, 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1267         { SONYPI_DEVICE_TYPE3, 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
1268         { SONYPI_DEVICE_TYPE3, 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1269         { SONYPI_DEVICE_TYPE3, 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
1270         { SONYPI_DEVICE_TYPE3, 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
1271         { 0 }
1272 };
1273
1274 static int sony_pic_detect_device_type(void)
1275 {
1276         struct pci_dev *pcidev;
1277         int model = 0;
1278
1279         if ((pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1280                                      PCI_DEVICE_ID_INTEL_82371AB_3, NULL)))
1281                 model = SONYPI_DEVICE_TYPE1;
1282
1283         else if ((pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1284                                           PCI_DEVICE_ID_INTEL_ICH6_1, NULL)))
1285                 model = SONYPI_DEVICE_TYPE3;
1286
1287         else if ((pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1288                                           PCI_DEVICE_ID_INTEL_ICH7_1, NULL)))
1289                 model = SONYPI_DEVICE_TYPE3;
1290
1291         else
1292                 model = SONYPI_DEVICE_TYPE2;
1293
1294         if (pcidev)
1295                 pci_dev_put(pcidev);
1296
1297         printk(KERN_INFO DRV_PFX "detected Type%d model\n",
1298                         model == SONYPI_DEVICE_TYPE1 ? 1 :
1299                         model == SONYPI_DEVICE_TYPE2 ? 2 : 3);
1300         return model;
1301 }
1302
1303 #define ITERATIONS_LONG         10000
1304 #define ITERATIONS_SHORT        10
1305 #define wait_on_command(command, iterations) {                          \
1306         unsigned int n = iterations;                                    \
1307         while (--n && (command))                                        \
1308                 udelay(1);                                              \
1309         if (!n)                                                         \
1310                 dprintk("command failed at %s : %s (line %d)\n",        \
1311                                 __FILE__, __FUNCTION__, __LINE__);      \
1312 }
1313
1314 static u8 sony_pic_call1(u8 dev)
1315 {
1316         u8 v1, v2;
1317
1318         wait_on_command(inb_p(spic_dev.cur_ioport->io.minimum + 4) & 2,
1319                         ITERATIONS_LONG);
1320         outb(dev, spic_dev.cur_ioport->io.minimum + 4);
1321         v1 = inb_p(spic_dev.cur_ioport->io.minimum + 4);
1322         v2 = inb_p(spic_dev.cur_ioport->io.minimum);
1323         dprintk("sony_pic_call1: 0x%.4x\n", (v2 << 8) | v1);
1324         return v2;
1325 }
1326
1327 static u8 sony_pic_call2(u8 dev, u8 fn)
1328 {
1329         u8 v1;
1330
1331         wait_on_command(inb_p(spic_dev.cur_ioport->io.minimum + 4) & 2,
1332                         ITERATIONS_LONG);
1333         outb(dev, spic_dev.cur_ioport->io.minimum + 4);
1334         wait_on_command(inb_p(spic_dev.cur_ioport->io.minimum + 4) & 2,
1335                         ITERATIONS_LONG);
1336         outb(fn, spic_dev.cur_ioport->io.minimum);
1337         v1 = inb_p(spic_dev.cur_ioport->io.minimum);
1338         dprintk("sony_pic_call2: 0x%.4x\n", v1);
1339         return v1;
1340 }
1341
1342 static u8 sony_pic_call3(u8 dev, u8 fn, u8 v)
1343 {
1344         u8 v1;
1345
1346         wait_on_command(inb_p(spic_dev.cur_ioport->io.minimum + 4) & 2, ITERATIONS_LONG);
1347         outb(dev, spic_dev.cur_ioport->io.minimum + 4);
1348         wait_on_command(inb_p(spic_dev.cur_ioport->io.minimum + 4) & 2, ITERATIONS_LONG);
1349         outb(fn, spic_dev.cur_ioport->io.minimum);
1350         wait_on_command(inb_p(spic_dev.cur_ioport->io.minimum + 4) & 2, ITERATIONS_LONG);
1351         outb(v, spic_dev.cur_ioport->io.minimum);
1352         v1 = inb_p(spic_dev.cur_ioport->io.minimum);
1353         dprintk("sony_pic_call3: 0x%.4x\n", v1);
1354         return v1;
1355 }
1356
1357 /* camera tests and poweron/poweroff */
1358 #define SONYPI_CAMERA_PICTURE           5
1359 #define SONYPI_CAMERA_CONTROL           0x10
1360
1361 #define SONYPI_CAMERA_BRIGHTNESS                0
1362 #define SONYPI_CAMERA_CONTRAST                  1
1363 #define SONYPI_CAMERA_HUE                       2
1364 #define SONYPI_CAMERA_COLOR                     3
1365 #define SONYPI_CAMERA_SHARPNESS                 4
1366
1367 #define SONYPI_CAMERA_EXPOSURE_MASK             0xC
1368 #define SONYPI_CAMERA_WHITE_BALANCE_MASK        0x3
1369 #define SONYPI_CAMERA_PICTURE_MODE_MASK         0x30
1370 #define SONYPI_CAMERA_MUTE_MASK                 0x40
1371
1372 /* the rest don't need a loop until not 0xff */
1373 #define SONYPI_CAMERA_AGC                       6
1374 #define SONYPI_CAMERA_AGC_MASK                  0x30
1375 #define SONYPI_CAMERA_SHUTTER_MASK              0x7
1376
1377 #define SONYPI_CAMERA_SHUTDOWN_REQUEST          7
1378 #define SONYPI_CAMERA_CONTROL                   0x10
1379
1380 #define SONYPI_CAMERA_STATUS                    7
1381 #define SONYPI_CAMERA_STATUS_READY              0x2
1382 #define SONYPI_CAMERA_STATUS_POSITION           0x4
1383
1384 #define SONYPI_DIRECTION_BACKWARDS              0x4
1385
1386 #define SONYPI_CAMERA_REVISION                  8
1387 #define SONYPI_CAMERA_ROMVERSION                9
1388
1389 static int __sony_pic_camera_ready(void)
1390 {
1391         u8 v;
1392
1393         v = sony_pic_call2(0x8f, SONYPI_CAMERA_STATUS);
1394         return (v != 0xff && (v & SONYPI_CAMERA_STATUS_READY));
1395 }
1396
1397 static int __sony_pic_camera_off(void)
1398 {
1399         if (!camera) {
1400                 printk(KERN_WARNING DRV_PFX "camera control not enabled\n");
1401                 return -ENODEV;
1402         }
1403
1404         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE,
1405                                 SONYPI_CAMERA_MUTE_MASK),
1406                         ITERATIONS_SHORT);
1407
1408         if (spic_dev.camera_power) {
1409                 sony_pic_call2(0x91, 0);
1410                 spic_dev.camera_power = 0;
1411         }
1412         return 0;
1413 }
1414
1415 static int __sony_pic_camera_on(void)
1416 {
1417         int i, j, x;
1418
1419         if (!camera) {
1420                 printk(KERN_WARNING DRV_PFX "camera control not enabled\n");
1421                 return -ENODEV;
1422         }
1423
1424         if (spic_dev.camera_power)
1425                 return 0;
1426
1427         for (j = 5; j > 0; j--) {
1428
1429                 for (x = 0; x < 100 && sony_pic_call2(0x91, 0x1); x++)
1430                         msleep(10);
1431                 sony_pic_call1(0x93);
1432
1433                 for (i = 400; i > 0; i--) {
1434                         if (__sony_pic_camera_ready())
1435                                 break;
1436                         msleep(10);
1437                 }
1438                 if (i)
1439                         break;
1440         }
1441
1442         if (j == 0) {
1443                 printk(KERN_WARNING DRV_PFX "failed to power on camera\n");
1444                 return -ENODEV;
1445         }
1446
1447         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTROL,
1448                                 0x5a),
1449                         ITERATIONS_SHORT);
1450
1451         spic_dev.camera_power = 1;
1452         return 0;
1453 }
1454
1455 /* External camera command (exported to the motion eye v4l driver) */
1456 int sony_pic_camera_command(int command, u8 value)
1457 {
1458         if (!camera)
1459                 return -EIO;
1460
1461         mutex_lock(&spic_dev.lock);
1462
1463         switch (command) {
1464         case SONY_PIC_COMMAND_SETCAMERA:
1465                 if (value)
1466                         __sony_pic_camera_on();
1467                 else
1468                         __sony_pic_camera_off();
1469                 break;
1470         case SONY_PIC_COMMAND_SETCAMERABRIGHTNESS:
1471                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_BRIGHTNESS, value),
1472                                 ITERATIONS_SHORT);
1473                 break;
1474         case SONY_PIC_COMMAND_SETCAMERACONTRAST:
1475                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTRAST, value),
1476                                 ITERATIONS_SHORT);
1477                 break;
1478         case SONY_PIC_COMMAND_SETCAMERAHUE:
1479                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_HUE, value),
1480                                 ITERATIONS_SHORT);
1481                 break;
1482         case SONY_PIC_COMMAND_SETCAMERACOLOR:
1483                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_COLOR, value),
1484                                 ITERATIONS_SHORT);
1485                 break;
1486         case SONY_PIC_COMMAND_SETCAMERASHARPNESS:
1487                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_SHARPNESS, value),
1488                                 ITERATIONS_SHORT);
1489                 break;
1490         case SONY_PIC_COMMAND_SETCAMERAPICTURE:
1491                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE, value),
1492                                 ITERATIONS_SHORT);
1493                 break;
1494         case SONY_PIC_COMMAND_SETCAMERAAGC:
1495                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_AGC, value),
1496                                 ITERATIONS_SHORT);
1497                 break;
1498         default:
1499                 printk(KERN_ERR DRV_PFX "sony_pic_camera_command invalid: %d\n",
1500                        command);
1501                 break;
1502         }
1503         mutex_unlock(&spic_dev.lock);
1504         return 0;
1505 }
1506 EXPORT_SYMBOL(sony_pic_camera_command);
1507
1508 /* gprs/edge modem (SZ460N and SZ210P), thanks to Joshua Wise */
1509 static void sony_pic_set_wwanpower(u8 state)
1510 {
1511         state = !!state;
1512         mutex_lock(&spic_dev.lock);
1513         if (spic_dev.wwan_power == state) {
1514                 mutex_unlock(&spic_dev.lock);
1515                 return;
1516         }
1517         sony_pic_call2(0xB0, state);
1518         spic_dev.wwan_power = state;
1519         mutex_unlock(&spic_dev.lock);
1520 }
1521
1522 static ssize_t sony_pic_wwanpower_store(struct device *dev,
1523                 struct device_attribute *attr,
1524                 const char *buffer, size_t count)
1525 {
1526         unsigned long value;
1527         if (count > 31)
1528                 return -EINVAL;
1529
1530         value = simple_strtoul(buffer, NULL, 10);
1531         sony_pic_set_wwanpower(value);
1532
1533         return count;
1534 }
1535
1536 static ssize_t sony_pic_wwanpower_show(struct device *dev,
1537                 struct device_attribute *attr, char *buffer)
1538 {
1539         ssize_t count;
1540         mutex_lock(&spic_dev.lock);
1541         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.wwan_power);
1542         mutex_unlock(&spic_dev.lock);
1543         return count;
1544 }
1545
1546 /* bluetooth subsystem power state */
1547 static void __sony_pic_set_bluetoothpower(u8 state)
1548 {
1549         state = !!state;
1550         if (spic_dev.bluetooth_power == state)
1551                 return;
1552         sony_pic_call2(0x96, state);
1553         sony_pic_call1(0x82);
1554         spic_dev.bluetooth_power = state;
1555 }
1556
1557 static ssize_t sony_pic_bluetoothpower_store(struct device *dev,
1558                 struct device_attribute *attr,
1559                 const char *buffer, size_t count)
1560 {
1561         unsigned long value;
1562         if (count > 31)
1563                 return -EINVAL;
1564
1565         value = simple_strtoul(buffer, NULL, 10);
1566         mutex_lock(&spic_dev.lock);
1567         __sony_pic_set_bluetoothpower(value);
1568         mutex_unlock(&spic_dev.lock);
1569
1570         return count;
1571 }
1572
1573 static ssize_t sony_pic_bluetoothpower_show(struct device *dev,
1574                 struct device_attribute *attr, char *buffer)
1575 {
1576         ssize_t count = 0;
1577         mutex_lock(&spic_dev.lock);
1578         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.bluetooth_power);
1579         mutex_unlock(&spic_dev.lock);
1580         return count;
1581 }
1582
1583 /* fan speed */
1584 /* FAN0 information (reverse engineered from ACPI tables) */
1585 #define SONY_PIC_FAN0_STATUS    0x93
1586 static int sony_pic_set_fanspeed(unsigned long value)
1587 {
1588         return ec_write(SONY_PIC_FAN0_STATUS, value);
1589 }
1590
1591 static int sony_pic_get_fanspeed(u8 *value)
1592 {
1593         return ec_read(SONY_PIC_FAN0_STATUS, value);
1594 }
1595
1596 static ssize_t sony_pic_fanspeed_store(struct device *dev,
1597                 struct device_attribute *attr,
1598                 const char *buffer, size_t count)
1599 {
1600         unsigned long value;
1601         if (count > 31)
1602                 return -EINVAL;
1603
1604         value = simple_strtoul(buffer, NULL, 10);
1605         if (sony_pic_set_fanspeed(value))
1606                 return -EIO;
1607
1608         return count;
1609 }
1610
1611 static ssize_t sony_pic_fanspeed_show(struct device *dev,
1612                 struct device_attribute *attr, char *buffer)
1613 {
1614         u8 value = 0;
1615         if (sony_pic_get_fanspeed(&value))
1616                 return -EIO;
1617
1618         return snprintf(buffer, PAGE_SIZE, "%d\n", value);
1619 }
1620
1621 #define SPIC_ATTR(_name, _mode)                                 \
1622 struct device_attribute spic_attr_##_name = __ATTR(_name,       \
1623                 _mode, sony_pic_## _name ##_show,               \
1624                 sony_pic_## _name ##_store)
1625
1626 static SPIC_ATTR(bluetoothpower, 0644);
1627 static SPIC_ATTR(wwanpower, 0644);
1628 static SPIC_ATTR(fanspeed, 0644);
1629
1630 static struct attribute *spic_attributes[] = {
1631         &spic_attr_bluetoothpower.attr,
1632         &spic_attr_wwanpower.attr,
1633         &spic_attr_fanspeed.attr,
1634         NULL
1635 };
1636
1637 static struct attribute_group spic_attribute_group = {
1638         .attrs = spic_attributes
1639 };
1640
1641 /******** SONYPI compatibility **********/
1642 #ifdef CONFIG_SONYPI_COMPAT
1643
1644 /* battery / brightness / temperature  addresses */
1645 #define SONYPI_BAT_FLAGS        0x81
1646 #define SONYPI_LCD_LIGHT        0x96
1647 #define SONYPI_BAT1_PCTRM       0xa0
1648 #define SONYPI_BAT1_LEFT        0xa2
1649 #define SONYPI_BAT1_MAXRT       0xa4
1650 #define SONYPI_BAT2_PCTRM       0xa8
1651 #define SONYPI_BAT2_LEFT        0xaa
1652 #define SONYPI_BAT2_MAXRT       0xac
1653 #define SONYPI_BAT1_MAXTK       0xb0
1654 #define SONYPI_BAT1_FULL        0xb2
1655 #define SONYPI_BAT2_MAXTK       0xb8
1656 #define SONYPI_BAT2_FULL        0xba
1657 #define SONYPI_TEMP_STATUS      0xC1
1658
1659 struct sonypi_compat_s {
1660         struct fasync_struct    *fifo_async;
1661         struct kfifo            *fifo;
1662         spinlock_t              fifo_lock;
1663         wait_queue_head_t       fifo_proc_list;
1664         atomic_t                open_count;
1665 };
1666 static struct sonypi_compat_s sonypi_compat = {
1667         .open_count = ATOMIC_INIT(0),
1668 };
1669
1670 static int sonypi_misc_fasync(int fd, struct file *filp, int on)
1671 {
1672         int retval;
1673
1674         retval = fasync_helper(fd, filp, on, &sonypi_compat.fifo_async);
1675         if (retval < 0)
1676                 return retval;
1677         return 0;
1678 }
1679
1680 static int sonypi_misc_release(struct inode *inode, struct file *file)
1681 {
1682         sonypi_misc_fasync(-1, file, 0);
1683         atomic_dec(&sonypi_compat.open_count);
1684         return 0;
1685 }
1686
1687 static int sonypi_misc_open(struct inode *inode, struct file *file)
1688 {
1689         /* Flush input queue on first open */
1690         if (atomic_inc_return(&sonypi_compat.open_count) == 1)
1691                 kfifo_reset(sonypi_compat.fifo);
1692         return 0;
1693 }
1694
1695 static ssize_t sonypi_misc_read(struct file *file, char __user *buf,
1696                                 size_t count, loff_t *pos)
1697 {
1698         ssize_t ret;
1699         unsigned char c;
1700
1701         if ((kfifo_len(sonypi_compat.fifo) == 0) &&
1702             (file->f_flags & O_NONBLOCK))
1703                 return -EAGAIN;
1704
1705         ret = wait_event_interruptible(sonypi_compat.fifo_proc_list,
1706                                        kfifo_len(sonypi_compat.fifo) != 0);
1707         if (ret)
1708                 return ret;
1709
1710         while (ret < count &&
1711                (kfifo_get(sonypi_compat.fifo, &c, sizeof(c)) == sizeof(c))) {
1712                 if (put_user(c, buf++))
1713                         return -EFAULT;
1714                 ret++;
1715         }
1716
1717         if (ret > 0) {
1718                 struct inode *inode = file->f_path.dentry->d_inode;
1719                 inode->i_atime = current_fs_time(inode->i_sb);
1720         }
1721
1722         return ret;
1723 }
1724
1725 static unsigned int sonypi_misc_poll(struct file *file, poll_table *wait)
1726 {
1727         poll_wait(file, &sonypi_compat.fifo_proc_list, wait);
1728         if (kfifo_len(sonypi_compat.fifo))
1729                 return POLLIN | POLLRDNORM;
1730         return 0;
1731 }
1732
1733 static int ec_read16(u8 addr, u16 *value)
1734 {
1735         u8 val_lb, val_hb;
1736         if (ec_read(addr, &val_lb))
1737                 return -1;
1738         if (ec_read(addr + 1, &val_hb))
1739                 return -1;
1740         *value = val_lb | (val_hb << 8);
1741         return 0;
1742 }
1743
1744 static int sonypi_misc_ioctl(struct inode *ip, struct file *fp,
1745                              unsigned int cmd, unsigned long arg)
1746 {
1747         int ret = 0;
1748         void __user *argp = (void __user *)arg;
1749         u8 val8;
1750         u16 val16;
1751         int value;
1752
1753         mutex_lock(&spic_dev.lock);
1754         switch (cmd) {
1755         case SONYPI_IOCGBRT:
1756                 if (sony_backlight_device == NULL) {
1757                         ret = -EIO;
1758                         break;
1759                 }
1760                 if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value)) {
1761                         ret = -EIO;
1762                         break;
1763                 }
1764                 val8 = ((value & 0xff) - 1) << 5;
1765                 if (copy_to_user(argp, &val8, sizeof(val8)))
1766                                 ret = -EFAULT;
1767                 break;
1768         case SONYPI_IOCSBRT:
1769                 if (sony_backlight_device == NULL) {
1770                         ret = -EIO;
1771                         break;
1772                 }
1773                 if (copy_from_user(&val8, argp, sizeof(val8))) {
1774                         ret = -EFAULT;
1775                         break;
1776                 }
1777                 if (acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
1778                                 (val8 >> 5) + 1, NULL)) {
1779                         ret = -EIO;
1780                         break;
1781                 }
1782                 /* sync the backlight device status */
1783                 sony_backlight_device->props.brightness =
1784                     sony_backlight_get_brightness(sony_backlight_device);
1785                 break;
1786         case SONYPI_IOCGBAT1CAP:
1787                 if (ec_read16(SONYPI_BAT1_FULL, &val16)) {
1788                         ret = -EIO;
1789                         break;
1790                 }
1791                 if (copy_to_user(argp, &val16, sizeof(val16)))
1792                         ret = -EFAULT;
1793                 break;
1794         case SONYPI_IOCGBAT1REM:
1795                 if (ec_read16(SONYPI_BAT1_LEFT, &val16)) {
1796                         ret = -EIO;
1797                         break;
1798                 }
1799                 if (copy_to_user(argp, &val16, sizeof(val16)))
1800                         ret = -EFAULT;
1801                 break;
1802         case SONYPI_IOCGBAT2CAP:
1803                 if (ec_read16(SONYPI_BAT2_FULL, &val16)) {
1804                         ret = -EIO;
1805                         break;
1806                 }
1807                 if (copy_to_user(argp, &val16, sizeof(val16)))
1808                         ret = -EFAULT;
1809                 break;
1810         case SONYPI_IOCGBAT2REM:
1811                 if (ec_read16(SONYPI_BAT2_LEFT, &val16)) {
1812                         ret = -EIO;
1813                         break;
1814                 }
1815                 if (copy_to_user(argp, &val16, sizeof(val16)))
1816                         ret = -EFAULT;
1817                 break;
1818         case SONYPI_IOCGBATFLAGS:
1819                 if (ec_read(SONYPI_BAT_FLAGS, &val8)) {
1820                         ret = -EIO;
1821                         break;
1822                 }
1823                 val8 &= 0x07;
1824                 if (copy_to_user(argp, &val8, sizeof(val8)))
1825                         ret = -EFAULT;
1826                 break;
1827         case SONYPI_IOCGBLUE:
1828                 val8 = spic_dev.bluetooth_power;
1829                 if (copy_to_user(argp, &val8, sizeof(val8)))
1830                         ret = -EFAULT;
1831                 break;
1832         case SONYPI_IOCSBLUE:
1833                 if (copy_from_user(&val8, argp, sizeof(val8))) {
1834                         ret = -EFAULT;
1835                         break;
1836                 }
1837                 __sony_pic_set_bluetoothpower(val8);
1838                 break;
1839         /* FAN Controls */
1840         case SONYPI_IOCGFAN:
1841                 if (sony_pic_get_fanspeed(&val8)) {
1842                         ret = -EIO;
1843                         break;
1844                 }
1845                 if (copy_to_user(argp, &val8, sizeof(val8)))
1846                         ret = -EFAULT;
1847                 break;
1848         case SONYPI_IOCSFAN:
1849                 if (copy_from_user(&val8, argp, sizeof(val8))) {
1850                         ret = -EFAULT;
1851                         break;
1852                 }
1853                 if (sony_pic_set_fanspeed(val8))
1854                         ret = -EIO;
1855                 break;
1856         /* GET Temperature (useful under APM) */
1857         case SONYPI_IOCGTEMP:
1858                 if (ec_read(SONYPI_TEMP_STATUS, &val8)) {
1859                         ret = -EIO;
1860                         break;
1861                 }
1862                 if (copy_to_user(argp, &val8, sizeof(val8)))
1863                         ret = -EFAULT;
1864                 break;
1865         default:
1866                 ret = -EINVAL;
1867         }
1868         mutex_unlock(&spic_dev.lock);
1869         return ret;
1870 }
1871
1872 static const struct file_operations sonypi_misc_fops = {
1873         .owner          = THIS_MODULE,
1874         .read           = sonypi_misc_read,
1875         .poll           = sonypi_misc_poll,
1876         .open           = sonypi_misc_open,
1877         .release        = sonypi_misc_release,
1878         .fasync         = sonypi_misc_fasync,
1879         .ioctl          = sonypi_misc_ioctl,
1880 };
1881
1882 static struct miscdevice sonypi_misc_device = {
1883         .minor          = MISC_DYNAMIC_MINOR,
1884         .name           = "sonypi",
1885         .fops           = &sonypi_misc_fops,
1886 };
1887
1888 static void sonypi_compat_report_event(u8 event)
1889 {
1890         kfifo_put(sonypi_compat.fifo, (unsigned char *)&event, sizeof(event));
1891         kill_fasync(&sonypi_compat.fifo_async, SIGIO, POLL_IN);
1892         wake_up_interruptible(&sonypi_compat.fifo_proc_list);
1893 }
1894
1895 static int sonypi_compat_init(void)
1896 {
1897         int error;
1898
1899         spin_lock_init(&sonypi_compat.fifo_lock);
1900         sonypi_compat.fifo = kfifo_alloc(SONY_LAPTOP_BUF_SIZE, GFP_KERNEL,
1901                                          &sonypi_compat.fifo_lock);
1902         if (IS_ERR(sonypi_compat.fifo)) {
1903                 printk(KERN_ERR DRV_PFX "kfifo_alloc failed\n");
1904                 return PTR_ERR(sonypi_compat.fifo);
1905         }
1906
1907         init_waitqueue_head(&sonypi_compat.fifo_proc_list);
1908
1909         if (minor != -1)
1910                 sonypi_misc_device.minor = minor;
1911         error = misc_register(&sonypi_misc_device);
1912         if (error) {
1913                 printk(KERN_ERR DRV_PFX "misc_register failed\n");
1914                 goto err_free_kfifo;
1915         }
1916         if (minor == -1)
1917                 printk(KERN_INFO DRV_PFX "device allocated minor is %d\n",
1918                        sonypi_misc_device.minor);
1919
1920         return 0;
1921
1922 err_free_kfifo:
1923         kfifo_free(sonypi_compat.fifo);
1924         return error;
1925 }
1926
1927 static void sonypi_compat_exit(void)
1928 {
1929         misc_deregister(&sonypi_misc_device);
1930         kfifo_free(sonypi_compat.fifo);
1931 }
1932 #else
1933 static int sonypi_compat_init(void) { return 0; }
1934 static void sonypi_compat_exit(void) { }
1935 static void sonypi_compat_report_event(u8 event) { }
1936 #endif /* CONFIG_SONYPI_COMPAT */
1937
1938 /*
1939  * ACPI callbacks
1940  */
1941 static acpi_status
1942 sony_pic_read_possible_resource(struct acpi_resource *resource, void *context)
1943 {
1944         u32 i;
1945         struct sony_pic_dev *dev = (struct sony_pic_dev *)context;
1946
1947         switch (resource->type) {
1948         case ACPI_RESOURCE_TYPE_START_DEPENDENT:
1949         case ACPI_RESOURCE_TYPE_END_DEPENDENT:
1950                 return AE_OK;
1951
1952         case ACPI_RESOURCE_TYPE_IRQ:
1953                 {
1954                         struct acpi_resource_irq *p = &resource->data.irq;
1955                         struct sony_pic_irq *interrupt = NULL;
1956                         if (!p || !p->interrupt_count) {
1957                                 /*
1958                                  * IRQ descriptors may have no IRQ# bits set,
1959                                  * particularly those those w/ _STA disabled
1960                                  */
1961                                 dprintk("Blank IRQ resource\n");
1962                                 return AE_OK;
1963                         }
1964                         for (i = 0; i < p->interrupt_count; i++) {
1965                                 if (!p->interrupts[i]) {
1966                                         printk(KERN_WARNING DRV_PFX
1967                                                         "Invalid IRQ %d\n",
1968                                                         p->interrupts[i]);
1969                                         continue;
1970                                 }
1971                                 interrupt = kzalloc(sizeof(*interrupt),
1972                                                 GFP_KERNEL);
1973                                 if (!interrupt)
1974                                         return AE_ERROR;
1975
1976                                 list_add_tail(&interrupt->list, &dev->interrupts);
1977                                 interrupt->irq.triggering = p->triggering;
1978                                 interrupt->irq.polarity = p->polarity;
1979                                 interrupt->irq.sharable = p->sharable;
1980                                 interrupt->irq.interrupt_count = 1;
1981                                 interrupt->irq.interrupts[0] = p->interrupts[i];
1982                         }
1983                         return AE_OK;
1984                 }
1985         case ACPI_RESOURCE_TYPE_IO:
1986                 {
1987                         struct acpi_resource_io *io = &resource->data.io;
1988                         struct sony_pic_ioport *ioport = NULL;
1989                         if (!io) {
1990                                 dprintk("Blank IO resource\n");
1991                                 return AE_OK;
1992                         }
1993
1994                         ioport = kzalloc(sizeof(*ioport), GFP_KERNEL);
1995                         if (!ioport)
1996                                 return AE_ERROR;
1997
1998                         list_add_tail(&ioport->list, &dev->ioports);
1999                         memcpy(&ioport->io, io, sizeof(*io));
2000                         return AE_OK;
2001                 }
2002         default:
2003                 dprintk("Resource %d isn't an IRQ nor an IO port\n",
2004                                 resource->type);
2005
2006         case ACPI_RESOURCE_TYPE_END_TAG:
2007                 return AE_OK;
2008         }
2009         return AE_CTRL_TERMINATE;
2010 }
2011
2012 static int sony_pic_possible_resources(struct acpi_device *device)
2013 {
2014         int result = 0;
2015         acpi_status status = AE_OK;
2016
2017         if (!device)
2018                 return -EINVAL;
2019
2020         /* get device status */
2021         /* see acpi_pci_link_get_current acpi_pci_link_get_possible */
2022         dprintk("Evaluating _STA\n");
2023         result = acpi_bus_get_status(device);
2024         if (result) {
2025                 printk(KERN_WARNING DRV_PFX "Unable to read status\n");
2026                 goto end;
2027         }
2028
2029         if (!device->status.enabled)
2030                 dprintk("Device disabled\n");
2031         else
2032                 dprintk("Device enabled\n");
2033
2034         /*
2035          * Query and parse 'method'
2036          */
2037         dprintk("Evaluating %s\n", METHOD_NAME__PRS);
2038         status = acpi_walk_resources(device->handle, METHOD_NAME__PRS,
2039                         sony_pic_read_possible_resource, &spic_dev);
2040         if (ACPI_FAILURE(status)) {
2041                 printk(KERN_WARNING DRV_PFX
2042                                 "Failure evaluating %s\n",
2043                                 METHOD_NAME__PRS);
2044                 result = -ENODEV;
2045         }
2046 end:
2047         return result;
2048 }
2049
2050 /*
2051  *  Disable the spic device by calling its _DIS method
2052  */
2053 static int sony_pic_disable(struct acpi_device *device)
2054 {
2055         if (ACPI_FAILURE(acpi_evaluate_object(device->handle,
2056                         "_DIS", NULL, NULL)))
2057                 return -ENXIO;
2058
2059         dprintk("Device disabled\n");
2060         return 0;
2061 }
2062
2063
2064 /*
2065  *  Based on drivers/acpi/pci_link.c:acpi_pci_link_set
2066  *
2067  *  Call _SRS to set current resources
2068  */
2069 static int sony_pic_enable(struct acpi_device *device,
2070                 struct sony_pic_ioport *ioport, struct sony_pic_irq *irq)
2071 {
2072         acpi_status status;
2073         int result = 0;
2074         struct {
2075                 struct acpi_resource io_res;
2076                 struct acpi_resource irq_res;
2077                 struct acpi_resource end;
2078         } *resource;
2079         struct acpi_buffer buffer = { 0, NULL };
2080
2081         if (!ioport || !irq)
2082                 return -EINVAL;
2083
2084         /* init acpi_buffer */
2085         resource = kzalloc(sizeof(*resource) + 1, GFP_KERNEL);
2086         if (!resource)
2087                 return -ENOMEM;
2088
2089         buffer.length = sizeof(*resource) + 1;
2090         buffer.pointer = resource;
2091
2092         /* setup io resource */
2093         resource->io_res.type = ACPI_RESOURCE_TYPE_IO;
2094         resource->io_res.length = sizeof(struct acpi_resource);
2095         memcpy(&resource->io_res.data.io, &ioport->io,
2096                         sizeof(struct acpi_resource_io));
2097
2098         /* setup irq resource */
2099         resource->irq_res.type = ACPI_RESOURCE_TYPE_IRQ;
2100         resource->irq_res.length = sizeof(struct acpi_resource);
2101         memcpy(&resource->irq_res.data.irq, &irq->irq,
2102                         sizeof(struct acpi_resource_irq));
2103         /* we requested a shared irq */
2104         resource->irq_res.data.irq.sharable = ACPI_SHARED;
2105
2106         resource->end.type = ACPI_RESOURCE_TYPE_END_TAG;
2107
2108         /* Attempt to set the resource */
2109         dprintk("Evaluating _SRS\n");
2110         status = acpi_set_current_resources(device->handle, &buffer);
2111
2112         /* check for total failure */
2113         if (ACPI_FAILURE(status)) {
2114                 printk(KERN_ERR DRV_PFX "Error evaluating _SRS");
2115                 result = -ENODEV;
2116                 goto end;
2117         }
2118
2119         /* Necessary device initializations calls (from sonypi) */
2120         sony_pic_call1(0x82);
2121         sony_pic_call2(0x81, 0xff);
2122         sony_pic_call1(compat ? 0x92 : 0x82);
2123
2124 end:
2125         kfree(resource);
2126         return result;
2127 }
2128
2129 /*****************
2130  *
2131  * ISR: some event is available
2132  *
2133  *****************/
2134 static irqreturn_t sony_pic_irq(int irq, void *dev_id)
2135 {
2136         int i, j;
2137         u32 port_val = 0;
2138         u8 ev = 0;
2139         u8 data_mask = 0;
2140         u8 device_event = 0;
2141
2142         struct sony_pic_dev *dev = (struct sony_pic_dev *) dev_id;
2143
2144         acpi_os_read_port(dev->cur_ioport->io.minimum, &port_val,
2145                         dev->cur_ioport->io.address_length);
2146         ev = port_val & SONY_PIC_EV_MASK;
2147         data_mask = 0xff & (port_val >> (dev->cur_ioport->io.address_length - 8));
2148
2149         dprintk("event (0x%.8x [%.2x] [%.2x]) at port 0x%.4x\n",
2150                         port_val, ev, data_mask, dev->cur_ioport->io.minimum);
2151
2152         if (ev == 0x00 || ev == 0xff)
2153                 return IRQ_HANDLED;
2154
2155         for (i = 0; sony_pic_eventtypes[i].model; i++) {
2156
2157                 if (spic_dev.model != sony_pic_eventtypes[i].model)
2158                         continue;
2159
2160                 if ((data_mask & sony_pic_eventtypes[i].data) !=
2161                     sony_pic_eventtypes[i].data)
2162                         continue;
2163
2164                 if (!(mask & sony_pic_eventtypes[i].mask))
2165                         continue;
2166
2167                 for (j = 0; sony_pic_eventtypes[i].events[j].event; j++) {
2168                         if (ev == sony_pic_eventtypes[i].events[j].data) {
2169                                 device_event =
2170                                         sony_pic_eventtypes[i].events[j].event;
2171                                 goto found;
2172                         }
2173                 }
2174         }
2175         return IRQ_HANDLED;
2176
2177 found:
2178         sony_laptop_report_input_event(device_event);
2179         acpi_bus_generate_event(spic_dev.acpi_dev, 1, device_event);
2180         sonypi_compat_report_event(device_event);
2181
2182         return IRQ_HANDLED;
2183 }
2184
2185 /*****************
2186  *
2187  *  ACPI driver
2188  *
2189  *****************/
2190 static int sony_pic_remove(struct acpi_device *device, int type)
2191 {
2192         struct sony_pic_ioport *io, *tmp_io;
2193         struct sony_pic_irq *irq, *tmp_irq;
2194
2195         sonypi_compat_exit();
2196
2197         if (sony_pic_disable(device)) {
2198                 printk(KERN_ERR DRV_PFX "Couldn't disable device.\n");
2199                 return -ENXIO;
2200         }
2201
2202         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
2203         release_region(spic_dev.cur_ioport->io.minimum,
2204                         spic_dev.cur_ioport->io.address_length);
2205
2206         sony_laptop_remove_input();
2207
2208         /* pf attrs */
2209         sysfs_remove_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
2210         sony_pf_remove();
2211
2212         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
2213                 list_del(&io->list);
2214                 kfree(io);
2215         }
2216         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
2217                 list_del(&irq->list);
2218                 kfree(irq);
2219         }
2220         spic_dev.cur_ioport = NULL;
2221         spic_dev.cur_irq = NULL;
2222
2223         dprintk(SONY_PIC_DRIVER_NAME " removed.\n");
2224         return 0;
2225 }
2226
2227 static int sony_pic_add(struct acpi_device *device)
2228 {
2229         int result;
2230         struct sony_pic_ioport *io, *tmp_io;
2231         struct sony_pic_irq *irq, *tmp_irq;
2232
2233         printk(KERN_INFO DRV_PFX "%s v%s.\n",
2234                 SONY_PIC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
2235
2236         spic_dev.acpi_dev = device;
2237         strcpy(acpi_device_class(device), "sony/hotkey");
2238         spic_dev.model = sony_pic_detect_device_type();
2239         mutex_init(&spic_dev.lock);
2240
2241         /* read _PRS resources */
2242         result = sony_pic_possible_resources(device);
2243         if (result) {
2244                 printk(KERN_ERR DRV_PFX
2245                                 "Unabe to read possible resources.\n");
2246                 goto err_free_resources;
2247         }
2248
2249         /* setup input devices and helper fifo */
2250         result = sony_laptop_setup_input();
2251         if (result) {
2252                 printk(KERN_ERR DRV_PFX
2253                                 "Unabe to create input devices.\n");
2254                 goto err_free_resources;
2255         }
2256
2257         /* request io port */
2258         list_for_each_entry(io, &spic_dev.ioports, list) {
2259                 if (request_region(io->io.minimum, io->io.address_length,
2260                                         "Sony Programable I/O Device")) {
2261                         dprintk("I/O port: 0x%.4x (0x%.4x) + 0x%.2x\n",
2262                                         io->io.minimum, io->io.maximum,
2263                                         io->io.address_length);
2264                         spic_dev.cur_ioport = io;
2265                         break;
2266                 }
2267         }
2268         if (!spic_dev.cur_ioport) {
2269                 printk(KERN_ERR DRV_PFX "Failed to request_region.\n");
2270                 result = -ENODEV;
2271                 goto err_remove_input;
2272         }
2273
2274         /* request IRQ */
2275         list_for_each_entry(irq, &spic_dev.interrupts, list) {
2276                 if (!request_irq(irq->irq.interrupts[0], sony_pic_irq,
2277                                         IRQF_SHARED, "sony-laptop", &spic_dev)) {
2278                         dprintk("IRQ: %d - triggering: %d - "
2279                                         "polarity: %d - shr: %d\n",
2280                                         irq->irq.interrupts[0],
2281                                         irq->irq.triggering,
2282                                         irq->irq.polarity,
2283                                         irq->irq.sharable);
2284                         spic_dev.cur_irq = irq;
2285                         break;
2286                 }
2287         }
2288         if (!spic_dev.cur_irq) {
2289                 printk(KERN_ERR DRV_PFX "Failed to request_irq.\n");
2290                 result = -ENODEV;
2291                 goto err_release_region;
2292         }
2293
2294         /* set resource status _SRS */
2295         result = sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
2296         if (result) {
2297                 printk(KERN_ERR DRV_PFX "Couldn't enable device.\n");
2298                 goto err_free_irq;
2299         }
2300
2301         spic_dev.bluetooth_power = -1;
2302         /* create device attributes */
2303         result = sony_pf_add();
2304         if (result)
2305                 goto err_disable_device;
2306
2307         result = sysfs_create_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
2308         if (result)
2309                 goto err_remove_pf;
2310
2311         if (sonypi_compat_init())
2312                 goto err_remove_pf;
2313
2314         return 0;
2315
2316 err_remove_pf:
2317         sony_pf_remove();
2318
2319 err_disable_device:
2320         sony_pic_disable(device);
2321
2322 err_free_irq:
2323         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
2324
2325 err_release_region:
2326         release_region(spic_dev.cur_ioport->io.minimum,
2327                         spic_dev.cur_ioport->io.address_length);
2328
2329 err_remove_input:
2330         sony_laptop_remove_input();
2331
2332 err_free_resources:
2333         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
2334                 list_del(&io->list);
2335                 kfree(io);
2336         }
2337         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
2338                 list_del(&irq->list);
2339                 kfree(irq);
2340         }
2341         spic_dev.cur_ioport = NULL;
2342         spic_dev.cur_irq = NULL;
2343
2344         return result;
2345 }
2346
2347 static int sony_pic_suspend(struct acpi_device *device, pm_message_t state)
2348 {
2349         if (sony_pic_disable(device))
2350                 return -ENXIO;
2351         return 0;
2352 }
2353
2354 static int sony_pic_resume(struct acpi_device *device)
2355 {
2356         sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
2357         return 0;
2358 }
2359
2360 static struct acpi_driver sony_pic_driver = {
2361         .name = SONY_PIC_DRIVER_NAME,
2362         .class = SONY_PIC_CLASS,
2363         .ids = SONY_PIC_HID,
2364         .owner = THIS_MODULE,
2365         .ops = {
2366                 .add = sony_pic_add,
2367                 .remove = sony_pic_remove,
2368                 .suspend = sony_pic_suspend,
2369                 .resume = sony_pic_resume,
2370                 },
2371 };
2372
2373 static struct dmi_system_id __initdata sonypi_dmi_table[] = {
2374         {
2375                 .ident = "Sony Vaio",
2376                 .matches = {
2377                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
2378                         DMI_MATCH(DMI_PRODUCT_NAME, "PCG-"),
2379                 },
2380         },
2381         {
2382                 .ident = "Sony Vaio",
2383                 .matches = {
2384                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
2385                         DMI_MATCH(DMI_PRODUCT_NAME, "VGN-"),
2386                 },
2387         },
2388         { }
2389 };
2390
2391 static int __init sony_laptop_init(void)
2392 {
2393         int result;
2394
2395         if (!no_spic && dmi_check_system(sonypi_dmi_table)) {
2396                 result = acpi_bus_register_driver(&sony_pic_driver);
2397                 if (result) {
2398                         printk(KERN_ERR DRV_PFX
2399                                         "Unable to register SPIC driver.");
2400                         goto out;
2401                 }
2402         }
2403
2404         result = acpi_bus_register_driver(&sony_nc_driver);
2405         if (result) {
2406                 printk(KERN_ERR DRV_PFX "Unable to register SNC driver.");
2407                 goto out_unregister_pic;
2408         }
2409
2410         return 0;
2411
2412 out_unregister_pic:
2413         if (!no_spic)
2414                 acpi_bus_unregister_driver(&sony_pic_driver);
2415 out:
2416         return result;
2417 }
2418
2419 static void __exit sony_laptop_exit(void)
2420 {
2421         acpi_bus_unregister_driver(&sony_nc_driver);
2422         if (!no_spic)
2423                 acpi_bus_unregister_driver(&sony_pic_driver);
2424 }
2425
2426 module_init(sony_laptop_init);
2427 module_exit(sony_laptop_exit);