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