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