drivers/misc/sony-laptop.c

   1 /*
   2  * ACPI Sony Notebook Control Driver (SNC and SPIC)
   3  *
   4  * Copyright (C) 2004-2005 Stelian Pop <stelian@popies.net>
   5  * Copyright (C) 2007 Mattia Dongili <malattia@linux.it>
   6  *
   7  * Parts of this driver inspired from asus_acpi.c and ibm_acpi.c
   8  * which are copyrighted by their respective authors.
   9  *
  10  * The SNY6001 driver part is based on the sonypi driver which includes
  11  * material from:
  12  *
  13  * Copyright (C) 2001-2005 Stelian Pop <stelian@popies.net>
  14  *
  15  * Copyright (C) 2005 Narayanan R S <nars@kadamba.org>
  16  *
  17  * Copyright (C) 2001-2002 Alcôve <www.alcove.com>
  18  *
  19  * Copyright (C) 2001 Michael Ashley <m.ashley@unsw.edu.au>
  20  *
  21  * Copyright (C) 2001 Junichi Morita <jun1m@mars.dti.ne.jp>
  22  *
  23  * Copyright (C) 2000 Takaya Kinjo <t-kinjo@tc4.so-net.ne.jp>
  24  *
  25  * Copyright (C) 2000 Andrew Tridgell <tridge@valinux.com>
  26  *
  27  * Earlier work by Werner Almesberger, Paul `Rusty' Russell and Paul Mackerras.
  28  *
  29  * This program is free software; you can redistribute it and/or modify
  30  * it under the terms of the GNU General Public License as published by
  31  * the Free Software Foundation; either version 2 of the License, or
  32  * (at your option) any later version.
  33  *
  34  * This program is distributed in the hope that it will be useful,
  35  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  36  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  37  * GNU General Public License for more details.
  38  *
  39  * You should have received a copy of the GNU General Public License
  40  * along with this program; if not, write to the Free Software
  41  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  42  *
  43  */
  44
  45 #include <linux/kernel.h>
  46 #include <linux/module.h>
  47 #include <linux/moduleparam.h>
  48 #include <linux/init.h>
  49 #include <linux/types.h>
  50 #include <linux/backlight.h>
  51 #include <linux/platform_device.h>
  52 #include <linux/err.h>
  53 #include <linux/dmi.h>
  54 #include <linux/pci.h>
  55 #include <linux/interrupt.h>
  56 #include <linux/delay.h>
  57 #include <linux/input.h>
  58 #include <linux/kfifo.h>
  59 #include <linux/workqueue.h>
  60 #include <linux/acpi.h>
  61 #include <acpi/acpi_drivers.h>
  62 #include <acpi/acpi_bus.h>
  63 #include <asm/uaccess.h>
  64 #include <linux/sonypi.h>
  65 #include <linux/sony-laptop.h>
  66 #ifdef CONFIG_SONYPI_COMPAT
  67 #include <linux/poll.h>
  68 #include <linux/miscdevice.h>
  69 #endif
  70
  71 #define DRV_PFX                 "sony-laptop: "
  72 #define dprintk(msg...)         do {                    \
  73         if (debug) printk(KERN_WARNING DRV_PFX  msg);   \
  74 } while (0)
  75
  76 #define SONY_LAPTOP_DRIVER_VERSION      "0.5"
  77
  78 #define SONY_NC_CLASS           "sony-nc"
  79 #define SONY_NC_HID             "SNY5001"
  80 #define SONY_NC_DRIVER_NAME     "Sony Notebook Control Driver"
  81
  82 #define SONY_PIC_CLASS          "sony-pic"
  83 #define SONY_PIC_HID            "SNY6001"
  84 #define SONY_PIC_DRIVER_NAME    "Sony Programmable IO Control Driver"
  85
  86 MODULE_AUTHOR("Stelian Pop, Mattia Dongili");
  87 MODULE_DESCRIPTION("Sony laptop extras driver (SPIC and SNC ACPI device)");
  88 MODULE_LICENSE("GPL");
  89 MODULE_VERSION(SONY_LAPTOP_DRIVER_VERSION);
  90
  91 static int debug;
  92 module_param(debug, int, 0);
  93 MODULE_PARM_DESC(debug, "set this to 1 (and RTFM) if you want to help "
  94                  "the development of this driver");
  95
  96 static int no_spic;             /* = 0 */
  97 module_param(no_spic, int, 0444);
  98 MODULE_PARM_DESC(no_spic,
  99                  "set this if you don't want to enable the SPIC device");
 100
 101 static int compat;              /* = 0 */
 102 module_param(compat, int, 0444);
 103 MODULE_PARM_DESC(compat,
 104                  "set this if you want to enable backward compatibility mode");
 105
 106 static unsigned long mask = 0xffffffff;
 107 module_param(mask, ulong, 0644);
 108 MODULE_PARM_DESC(mask,
 109                  "set this to the mask of event you want to enable (see doc)");
 110
 111 static int camera;              /* = 0 */
 112 module_param(camera, int, 0444);
 113 MODULE_PARM_DESC(camera,
 114                  "set this to 1 to enable Motion Eye camera controls "
 115                  "(only use it if you have a C1VE or C1VN model)");
 116
 117 #ifdef CONFIG_SONYPI_COMPAT
 118 static int minor = -1;
 119 module_param(minor, int, 0);
 120 MODULE_PARM_DESC(minor,
 121                  "minor number of the misc device for the SPIC compatibility code, "
 122                  "default is -1 (automatic)");
 123 #endif
 124
 125 /*********** Input Devices ***********/
 126
 127 #define SONY_LAPTOP_BUF_SIZE    128
 128 struct sony_laptop_input_s {
 129         atomic_t                users;
 130         struct input_dev        *jog_dev;
 131         struct input_dev        *key_dev;
 132         struct kfifo            *fifo;
 133         spinlock_t              fifo_lock;
 134         struct workqueue_struct *wq;
 135 };
 136 static struct sony_laptop_input_s sony_laptop_input = {
 137         .users = ATOMIC_INIT(0),
 138 };
 139
 140 struct sony_laptop_keypress {
 141         struct input_dev *dev;
 142         int key;
 143 };
 144
 145 /* Correspondance table between sonypi events and input layer events */
 146 static struct {
 147         int sonypiev;
 148         int inputev;
 149 } sony_laptop_inputkeys[] = {
 150         { SONYPI_EVENT_CAPTURE_PRESSED,         KEY_CAMERA },
 151         { SONYPI_EVENT_FNKEY_ONLY,              KEY_FN },
 152         { SONYPI_EVENT_FNKEY_ESC,               KEY_FN_ESC },
 153         { SONYPI_EVENT_FNKEY_F1,                KEY_FN_F1 },
 154         { SONYPI_EVENT_FNKEY_F2,                KEY_FN_F2 },
 155         { SONYPI_EVENT_FNKEY_F3,                KEY_FN_F3 },
 156         { SONYPI_EVENT_FNKEY_F4,                KEY_FN_F4 },
 157         { SONYPI_EVENT_FNKEY_F5,                KEY_FN_F5 },
 158         { SONYPI_EVENT_FNKEY_F6,                KEY_FN_F6 },
 159         { SONYPI_EVENT_FNKEY_F7,                KEY_FN_F7 },
 160         { SONYPI_EVENT_FNKEY_F8,                KEY_FN_F8 },
 161         { SONYPI_EVENT_FNKEY_F9,                KEY_FN_F9 },
 162         { SONYPI_EVENT_FNKEY_F10,               KEY_FN_F10 },
 163         { SONYPI_EVENT_FNKEY_F11,               KEY_FN_F11 },
 164         { SONYPI_EVENT_FNKEY_F12,               KEY_FN_F12 },
 165         { SONYPI_EVENT_FNKEY_1,                 KEY_FN_1 },
 166         { SONYPI_EVENT_FNKEY_2,                 KEY_FN_2 },
 167         { SONYPI_EVENT_FNKEY_D,                 KEY_FN_D },
 168         { SONYPI_EVENT_FNKEY_E,                 KEY_FN_E },
 169         { SONYPI_EVENT_FNKEY_F,                 KEY_FN_F },
 170         { SONYPI_EVENT_FNKEY_S,                 KEY_FN_S },
 171         { SONYPI_EVENT_FNKEY_B,                 KEY_FN_B },
 172         { SONYPI_EVENT_BLUETOOTH_PRESSED,       KEY_BLUE },
 173         { SONYPI_EVENT_BLUETOOTH_ON,            KEY_BLUE },
 174         { SONYPI_EVENT_PKEY_P1,                 KEY_PROG1 },
 175         { SONYPI_EVENT_PKEY_P2,                 KEY_PROG2 },
 176         { SONYPI_EVENT_PKEY_P3,                 KEY_PROG3 },
 177         { SONYPI_EVENT_BACK_PRESSED,            KEY_BACK },
 178         { SONYPI_EVENT_HELP_PRESSED,            KEY_HELP },
 179         { SONYPI_EVENT_ZOOM_PRESSED,            KEY_ZOOM },
 180         { SONYPI_EVENT_THUMBPHRASE_PRESSED,     BTN_THUMB },
 181         { 0, 0 },
 182 };
 183
 184 /* release buttons after a short delay if pressed */
 185 static void do_sony_laptop_release_key(struct work_struct *work)
 186 {
 187         struct sony_laptop_keypress kp;
 188
 189         while (kfifo_get(sony_laptop_input.fifo, (unsigned char *)&kp,
 190                          sizeof(kp)) == sizeof(kp)) {
 191                 msleep(10);
 192                 input_report_key(kp.dev, kp.key, 0);
 193                 input_sync(kp.dev);
 194         }
 195 }
 196 static DECLARE_WORK(sony_laptop_release_key_work,
 197                 do_sony_laptop_release_key);
 198
 199 /* forward event to the input subsytem */
 200 static void sony_laptop_report_input_event(u8 event)
 201 {
 202         struct input_dev *jog_dev = sony_laptop_input.jog_dev;
 203         struct input_dev *key_dev = sony_laptop_input.key_dev;
 204         struct sony_laptop_keypress kp = { NULL };
 205         int i;
 206
 207         if (event == SONYPI_EVENT_FNKEY_RELEASED) {
 208                 /* Nothing, not all VAIOs generate this event */
 209                 return;
 210         }
 211
 212         /* report events */
 213         switch (event) {
 214         /* jog_dev events */
 215         case SONYPI_EVENT_JOGDIAL_UP:
 216         case SONYPI_EVENT_JOGDIAL_UP_PRESSED:
 217                 input_report_rel(jog_dev, REL_WHEEL, 1);
 218                 input_sync(jog_dev);
 219                 return;
 220
 221         case SONYPI_EVENT_JOGDIAL_DOWN:
 222         case SONYPI_EVENT_JOGDIAL_DOWN_PRESSED:
 223                 input_report_rel(jog_dev, REL_WHEEL, -1);
 224                 input_sync(jog_dev);
 225                 return;
 226
 227         /* key_dev events */
 228         case SONYPI_EVENT_JOGDIAL_PRESSED:
 229                 kp.key = BTN_MIDDLE;
 230                 kp.dev = jog_dev;
 231                 break;
 232
 233         default:
 234                 for (i = 0; sony_laptop_inputkeys[i].sonypiev; i++)
 235                         if (event == sony_laptop_inputkeys[i].sonypiev) {
 236                                 kp.dev = key_dev;
 237                                 kp.key = sony_laptop_inputkeys[i].inputev;
 238                                 break;
 239                         }
 240                 break;
 241         }
 242
 243         if (kp.dev) {
 244                 input_report_key(kp.dev, kp.key, 1);
 245                 input_sync(kp.dev);
 246                 kfifo_put(sony_laptop_input.fifo,
 247                           (unsigned char *)&kp, sizeof(kp));
 248
 249                 if (!work_pending(&sony_laptop_release_key_work))
 250                         queue_work(sony_laptop_input.wq,
 251                                         &sony_laptop_release_key_work);
 252         } else
 253                 dprintk("unknown input event %.2x\n", event);
 254 }
 255
 256 static int sony_laptop_setup_input(void)
 257 {
 258         struct input_dev *jog_dev;
 259         struct input_dev *key_dev;
 260         int i;
 261         int error;
 262
 263         /* don't run again if already initialized */
 264         if (atomic_add_return(1, &sony_laptop_input.users) > 1)
 265                 return 0;
 266
 267         /* kfifo */
 268         spin_lock_init(&sony_laptop_input.fifo_lock);
 269         sony_laptop_input.fifo =
 270                 kfifo_alloc(SONY_LAPTOP_BUF_SIZE, GFP_KERNEL,
 271                             &sony_laptop_input.fifo_lock);
 272         if (IS_ERR(sony_laptop_input.fifo)) {
 273                 printk(KERN_ERR DRV_PFX "kfifo_alloc failed\n");
 274                 error = PTR_ERR(sony_laptop_input.fifo);
 275                 goto err_dec_users;
 276         }
 277
 278         /* init workqueue */
 279         sony_laptop_input.wq = create_singlethread_workqueue("sony-laptop");
 280         if (!sony_laptop_input.wq) {
 281                 printk(KERN_ERR DRV_PFX
 282                                 "Unabe to create workqueue.\n");
 283                 error = -ENXIO;
 284                 goto err_free_kfifo;
 285         }
 286
 287         /* input keys */
 288         key_dev = input_allocate_device();
 289         if (!key_dev) {
 290                 error = -ENOMEM;
 291                 goto err_destroy_wq;
 292         }
 293
 294         key_dev->name = "Sony Vaio Keys";
 295         key_dev->id.bustype = BUS_ISA;
 296         key_dev->id.vendor = PCI_VENDOR_ID_SONY;
 297
 298         /* Initialize the Input Drivers: special keys */
 299         key_dev->evbit[0] = BIT(EV_KEY);
 300         for (i = 0; sony_laptop_inputkeys[i].sonypiev; i++)
 301                 if (sony_laptop_inputkeys[i].inputev)
 302                         set_bit(sony_laptop_inputkeys[i].inputev,
 303                                         key_dev->keybit);
 304
 305         error = input_register_device(key_dev);
 306         if (error)
 307                 goto err_free_keydev;
 308
 309         sony_laptop_input.key_dev = key_dev;
 310
 311         /* jogdial */
 312         jog_dev = input_allocate_device();
 313         if (!jog_dev) {
 314                 error = -ENOMEM;
 315                 goto err_unregister_keydev;
 316         }
 317
 318         jog_dev->name = "Sony Vaio Jogdial";
 319         jog_dev->id.bustype = BUS_ISA;
 320         jog_dev->id.vendor = PCI_VENDOR_ID_SONY;
 321
 322         jog_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REL);
 323         jog_dev->keybit[LONG(BTN_MOUSE)] = BIT(BTN_MIDDLE);
 324         jog_dev->relbit[0] = BIT(REL_WHEEL);
 325
 326         error = input_register_device(jog_dev);
 327         if (error)
 328                 goto err_free_jogdev;
 329
 330         sony_laptop_input.jog_dev = jog_dev;
 331
 332         return 0;
 333
 334 err_free_jogdev:
 335         input_free_device(jog_dev);
 336
 337 err_unregister_keydev:
 338         input_unregister_device(key_dev);
 339         /* to avoid kref underflow below at input_free_device */
 340         key_dev = NULL;
 341
 342 err_free_keydev:
 343         input_free_device(key_dev);
 344
 345 err_destroy_wq:
 346         destroy_workqueue(sony_laptop_input.wq);
 347
 348 err_free_kfifo:
 349         kfifo_free(sony_laptop_input.fifo);
 350
 351 err_dec_users:
 352         atomic_dec(&sony_laptop_input.users);
 353         return error;
 354 }
 355
 356 static void sony_laptop_remove_input(void)
 357 {
 358         /* cleanup only after the last user has gone */
 359         if (!atomic_dec_and_test(&sony_laptop_input.users))
 360                 return;
 361
 362         /* flush workqueue first */
 363         flush_workqueue(sony_laptop_input.wq);
 364
 365         /* destroy input devs */
 366         input_unregister_device(sony_laptop_input.key_dev);
 367         sony_laptop_input.key_dev = NULL;
 368
 369         if (sony_laptop_input.jog_dev) {
 370                 input_unregister_device(sony_laptop_input.jog_dev);
 371                 sony_laptop_input.jog_dev = NULL;
 372         }
 373
 374         destroy_workqueue(sony_laptop_input.wq);
 375         kfifo_free(sony_laptop_input.fifo);
 376 }
 377
 378 /*********** Platform Device ***********/
 379
 380 static atomic_t sony_pf_users = ATOMIC_INIT(0);
 381 static struct platform_driver sony_pf_driver = {
 382         .driver = {
 383                    .name = "sony-laptop",
 384                    .owner = THIS_MODULE,
 385                    }
 386 };
 387 static struct platform_device *sony_pf_device;
 388
 389 static int sony_pf_add(void)
 390 {
 391         int ret = 0;
 392
 393         /* don't run again if already initialized */
 394         if (atomic_add_return(1, &sony_pf_users) > 1)
 395                 return 0;
 396
 397         ret = platform_driver_register(&sony_pf_driver);
 398         if (ret)
 399                 goto out;
 400
 401         sony_pf_device = platform_device_alloc("sony-laptop", -1);
 402         if (!sony_pf_device) {
 403                 ret = -ENOMEM;
 404                 goto out_platform_registered;
 405         }
 406
 407         ret = platform_device_add(sony_pf_device);
 408         if (ret)
 409                 goto out_platform_alloced;
 410
 411         return 0;
 412
 413       out_platform_alloced:
 414         platform_device_put(sony_pf_device);
 415         sony_pf_device = NULL;
 416       out_platform_registered:
 417         platform_driver_unregister(&sony_pf_driver);
 418       out:
 419         atomic_dec(&sony_pf_users);
 420         return ret;
 421 }
 422
 423 static void sony_pf_remove(void)
 424 {
 425         /* deregister only after the last user has gone */
 426         if (!atomic_dec_and_test(&sony_pf_users))
 427                 return;
 428
 429         platform_device_del(sony_pf_device);
 430         platform_device_put(sony_pf_device);
 431         platform_driver_unregister(&sony_pf_driver);
 432 }
 433
 434 /*********** SNC (SNY5001) Device ***********/
 435
 436 /* the device uses 1-based values, while the backlight subsystem uses
 437    0-based values */
 438 #define SONY_MAX_BRIGHTNESS     8
 439
 440 #define SNC_VALIDATE_IN         0
 441 #define SNC_VALIDATE_OUT        1
 442
 443 static ssize_t sony_nc_sysfs_show(struct device *, struct device_attribute *,
 444                               char *);
 445 static ssize_t sony_nc_sysfs_store(struct device *, struct device_attribute *,
 446                                const char *, size_t);
 447 static int boolean_validate(const int, const int);
 448 static int brightness_default_validate(const int, const int);
 449
 450 struct sony_nc_value {
 451         char *name;             /* name of the entry */
 452         char **acpiget;         /* names of the ACPI get function */
 453         char **acpiset;         /* names of the ACPI set function */
 454         int (*validate)(const int, const int);  /* input/output validation */
 455         int value;              /* current setting */
 456         int valid;              /* Has ever been set */
 457         int debug;              /* active only in debug mode ? */
 458         struct device_attribute devattr;        /* sysfs atribute */
 459 };
 460
 461 #define SNC_HANDLE_NAMES(_name, _values...) \
 462         static char *snc_##_name[] = { _values, NULL }
 463
 464 #define SNC_HANDLE(_name, _getters, _setters, _validate, _debug) \
 465         { \
 466                 .name           = __stringify(_name), \
 467                 .acpiget        = _getters, \
 468                 .acpiset        = _setters, \
 469                 .validate       = _validate, \
 470                 .debug          = _debug, \
 471                 .devattr        = __ATTR(_name, 0, sony_nc_sysfs_show, sony_nc_sysfs_store), \
 472         }
 473
 474 #define SNC_HANDLE_NULL { .name = NULL }
 475
 476 SNC_HANDLE_NAMES(fnkey_get, "GHKE");
 477
 478 SNC_HANDLE_NAMES(brightness_def_get, "GPBR");
 479 SNC_HANDLE_NAMES(brightness_def_set, "SPBR");
 480
 481 SNC_HANDLE_NAMES(cdpower_get, "GCDP");
 482 SNC_HANDLE_NAMES(cdpower_set, "SCDP", "CDPW");
 483
 484 SNC_HANDLE_NAMES(audiopower_get, "GAZP");
 485 SNC_HANDLE_NAMES(audiopower_set, "AZPW");
 486
 487 SNC_HANDLE_NAMES(lanpower_get, "GLNP");
 488 SNC_HANDLE_NAMES(lanpower_set, "LNPW");
 489
 490 SNC_HANDLE_NAMES(lidstate_get, "GLID");
 491
 492 SNC_HANDLE_NAMES(indicatorlamp_get, "GILS");
 493 SNC_HANDLE_NAMES(indicatorlamp_set, "SILS");
 494
 495 SNC_HANDLE_NAMES(gainbass_get, "GMGB");
 496 SNC_HANDLE_NAMES(gainbass_set, "CMGB");
 497
 498 SNC_HANDLE_NAMES(PID_get, "GPID");
 499
 500 SNC_HANDLE_NAMES(CTR_get, "GCTR");
 501 SNC_HANDLE_NAMES(CTR_set, "SCTR");
 502
 503 SNC_HANDLE_NAMES(PCR_get, "GPCR");
 504 SNC_HANDLE_NAMES(PCR_set, "SPCR");
 505
 506 SNC_HANDLE_NAMES(CMI_get, "GCMI");
 507 SNC_HANDLE_NAMES(CMI_set, "SCMI");
 508
 509 static struct sony_nc_value sony_nc_values[] = {
 510         SNC_HANDLE(brightness_default, snc_brightness_def_get,
 511                         snc_brightness_def_set, brightness_default_validate, 0),
 512         SNC_HANDLE(fnkey, snc_fnkey_get, NULL, NULL, 0),
 513         SNC_HANDLE(cdpower, snc_cdpower_get, snc_cdpower_set, boolean_validate, 0),
 514         SNC_HANDLE(audiopower, snc_audiopower_get, snc_audiopower_set,
 515                         boolean_validate, 0),
 516         SNC_HANDLE(lanpower, snc_lanpower_get, snc_lanpower_set,
 517                         boolean_validate, 1),
 518         SNC_HANDLE(lidstate, snc_lidstate_get, NULL,
 519                         boolean_validate, 0),
 520         SNC_HANDLE(indicatorlamp, snc_indicatorlamp_get, snc_indicatorlamp_set,
 521                         boolean_validate, 0),
 522         SNC_HANDLE(gainbass, snc_gainbass_get, snc_gainbass_set,
 523                         boolean_validate, 0),
 524         /* unknown methods */
 525         SNC_HANDLE(PID, snc_PID_get, NULL, NULL, 1),
 526         SNC_HANDLE(CTR, snc_CTR_get, snc_CTR_set, NULL, 1),
 527         SNC_HANDLE(PCR, snc_PCR_get, snc_PCR_set, NULL, 1),
 528         SNC_HANDLE(CMI, snc_CMI_get, snc_CMI_set, NULL, 1),
 529         SNC_HANDLE_NULL
 530 };
 531
 532 static acpi_handle sony_nc_acpi_handle;
 533 static struct acpi_device *sony_nc_acpi_device = NULL;
 534
 535 /*
 536  * acpi_evaluate_object wrappers
 537  */
 538 static int acpi_callgetfunc(acpi_handle handle, char *name, int *result)
 539 {
 540         struct acpi_buffer output;
 541         union acpi_object out_obj;
 542         acpi_status status;
 543
 544         output.length = sizeof(out_obj);
 545         output.pointer = &out_obj;
 546
 547         status = acpi_evaluate_object(handle, name, NULL, &output);
 548         if ((status == AE_OK) && (out_obj.type == ACPI_TYPE_INTEGER)) {
 549                 *result = out_obj.integer.value;
 550                 return 0;
 551         }
 552
 553         printk(KERN_WARNING DRV_PFX "acpi_callreadfunc failed\n");
 554
 555         return -1;
 556 }
 557
 558 static int acpi_callsetfunc(acpi_handle handle, char *name, int value,
 559                             int *result)
 560 {
 561         struct acpi_object_list params;
 562         union acpi_object in_obj;
 563         struct acpi_buffer output;
 564         union acpi_object out_obj;
 565         acpi_status status;
 566
 567         params.count = 1;
 568         params.pointer = &in_obj;
 569         in_obj.type = ACPI_TYPE_INTEGER;
 570         in_obj.integer.value = value;
 571
 572         output.length = sizeof(out_obj);
 573         output.pointer = &out_obj;
 574
 575         status = acpi_evaluate_object(handle, name, &params, &output);
 576         if (status == AE_OK) {
 577                 if (result != NULL) {
 578                         if (out_obj.type != ACPI_TYPE_INTEGER) {
 579                                 printk(KERN_WARNING DRV_PFX "acpi_evaluate_object bad "
 580                                        "return type\n");
 581                                 return -1;
 582                         }
 583                         *result = out_obj.integer.value;
 584                 }
 585                 return 0;
 586         }
 587
 588         printk(KERN_WARNING DRV_PFX "acpi_evaluate_object failed\n");
 589
 590         return -1;
 591 }
 592
 593 /*
 594  * sony_nc_values input/output validate functions
 595  */
 596
 597 /* brightness_default_validate:
 598  *
 599  * manipulate input output values to keep consistency with the
 600  * backlight framework for which brightness values are 0-based.
 601  */
 602 static int brightness_default_validate(const int direction, const int value)
 603 {
 604         switch (direction) {
 605                 case SNC_VALIDATE_OUT:
 606                         return value - 1;
 607                 case SNC_VALIDATE_IN:
 608                         if (value >= 0 && value < SONY_MAX_BRIGHTNESS)
 609                                 return value + 1;
 610         }
 611         return -EINVAL;
 612 }
 613
 614 /* boolean_validate:
 615  *
 616  * on input validate boolean values 0/1, on output just pass the
 617  * received value.
 618  */
 619 static int boolean_validate(const int direction, const int value)
 620 {
 621         if (direction == SNC_VALIDATE_IN) {
 622                 if (value != 0 && value != 1)
 623                         return -EINVAL;
 624         }
 625         return value;
 626 }
 627
 628 /*
 629  * Sysfs show/store common to all sony_nc_values
 630  */
 631 static ssize_t sony_nc_sysfs_show(struct device *dev, struct device_attribute *attr,
 632                               char *buffer)
 633 {
 634         int value;
 635         struct sony_nc_value *item =
 636             container_of(attr, struct sony_nc_value, devattr);
 637
 638         if (!*item->acpiget)
 639                 return -EIO;
 640
 641         if (acpi_callgetfunc(sony_nc_acpi_handle, *item->acpiget, &value) < 0)
 642                 return -EIO;
 643
 644         if (item->validate)
 645                 value = item->validate(SNC_VALIDATE_OUT, value);
 646
 647         return snprintf(buffer, PAGE_SIZE, "%d\n", value);
 648 }
 649
 650 static ssize_t sony_nc_sysfs_store(struct device *dev,
 651                                struct device_attribute *attr,
 652                                const char *buffer, size_t count)
 653 {
 654         int value;
 655         struct sony_nc_value *item =
 656             container_of(attr, struct sony_nc_value, devattr);
 657
 658         if (!item->acpiset)
 659                 return -EIO;
 660
 661         if (count > 31)
 662                 return -EINVAL;
 663
 664         value = simple_strtoul(buffer, NULL, 10);
 665
 666         if (item->validate)
 667                 value = item->validate(SNC_VALIDATE_IN, value);
 668
 669         if (value < 0)
 670                 return value;
 671
 672         if (acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset, value, NULL) < 0)
 673                 return -EIO;
 674         item->value = value;
 675         item->valid = 1;
 676         return count;
 677 }
 678
 679
 680 /*
 681  * Backlight device
 682  */
 683 static int sony_backlight_update_status(struct backlight_device *bd)
 684 {
 685         return acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
 686                                 bd->props.brightness + 1, NULL);
 687 }
 688
 689 static int sony_backlight_get_brightness(struct backlight_device *bd)
 690 {
 691         int value;
 692
 693         if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value))
 694                 return 0;
 695         /* brightness levels are 1-based, while backlight ones are 0-based */
 696         return value - 1;
 697 }
 698
 699 static struct backlight_device *sony_backlight_device;
 700 static struct backlight_ops sony_backlight_ops = {
 701         .update_status = sony_backlight_update_status,
 702         .get_brightness = sony_backlight_get_brightness,
 703 };
 704
 705 /*
 706  * ACPI callbacks
 707  */
 708 static void sony_acpi_notify(acpi_handle handle, u32 event, void *data)
 709 {
 710         dprintk("sony_acpi_notify, event: %d\n", event);
 711         sony_laptop_report_input_event(event);
 712         acpi_bus_generate_event(sony_nc_acpi_device, 1, event);
 713 }
 714
 715 static acpi_status sony_walk_callback(acpi_handle handle, u32 level,
 716                                       void *context, void **return_value)
 717 {
 718         struct acpi_namespace_node *node;
 719         union acpi_operand_object *operand;
 720
 721         node = (struct acpi_namespace_node *)handle;
 722         operand = (union acpi_operand_object *)node->object;
 723
 724         printk(KERN_WARNING DRV_PFX "method: name: %4.4s, args %X\n", node->name.ascii,
 725                (u32) operand->method.param_count);
 726
 727         return AE_OK;
 728 }
 729
 730 /*
 731  * ACPI device
 732  */
 733 static int sony_nc_resume(struct acpi_device *device)
 734 {
 735         struct sony_nc_value *item;
 736
 737         for (item = sony_nc_values; item->name; item++) {
 738                 int ret;
 739
 740                 if (!item->valid)
 741                         continue;
 742                 ret = acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset,
 743                                        item->value, NULL);
 744                 if (ret < 0) {
 745                         printk("%s: %d\n", __FUNCTION__, ret);
 746                         break;
 747                 }
 748         }
 749         return 0;
 750 }
 751
 752 static int sony_nc_add(struct acpi_device *device)
 753 {
 754         acpi_status status;
 755         int result = 0;
 756         acpi_handle handle;
 757         struct sony_nc_value *item;
 758
 759         printk(KERN_INFO DRV_PFX "%s v%s.\n",
 760                 SONY_NC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
 761
 762         sony_nc_acpi_device = device;
 763         strcpy(acpi_device_class(device), "sony/hotkey");
 764
 765         sony_nc_acpi_handle = device->handle;
 766
 767         if (debug) {
 768                 status = acpi_walk_namespace(ACPI_TYPE_METHOD, sony_nc_acpi_handle,
 769                                              1, sony_walk_callback, NULL, NULL);
 770                 if (ACPI_FAILURE(status)) {
 771                         printk(KERN_WARNING DRV_PFX "unable to walk acpi resources\n");
 772                         result = -ENODEV;
 773                         goto outwalk;
 774                 }
 775         }
 776
 777         /* setup input devices and helper fifo */
 778         result = sony_laptop_setup_input();
 779         if (result) {
 780                 printk(KERN_ERR DRV_PFX
 781                                 "Unabe to create input devices.\n");
 782                 goto outwalk;
 783         }
 784
 785         status = acpi_install_notify_handler(sony_nc_acpi_handle,
 786                                              ACPI_DEVICE_NOTIFY,
 787                                              sony_acpi_notify, NULL);
 788         if (ACPI_FAILURE(status)) {
 789                 printk(KERN_WARNING DRV_PFX "unable to install notify handler\n");
 790                 result = -ENODEV;
 791                 goto outinput;
 792         }
 793
 794         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT", &handle))) {
 795                 sony_backlight_device = backlight_device_register("sony", NULL,
 796                                                                   NULL,
 797                                                                   &sony_backlight_ops);
 798
 799                 if (IS_ERR(sony_backlight_device)) {
 800                         printk(KERN_WARNING DRV_PFX "unable to register backlight device\n");
 801                         sony_backlight_device = NULL;
 802                 } else {
 803                         sony_backlight_device->props.brightness =
 804                             sony_backlight_get_brightness
 805                             (sony_backlight_device);
 806                         sony_backlight_device->props.max_brightness =
 807                             SONY_MAX_BRIGHTNESS - 1;
 808                 }
 809
 810         }
 811
 812         result = sony_pf_add();
 813         if (result)
 814                 goto outbacklight;
 815
 816         /* create sony_pf sysfs attributes related to the SNC device */
 817         for (item = sony_nc_values; item->name; ++item) {
 818
 819                 if (!debug && item->debug)
 820                         continue;
 821
 822                 /* find the available acpiget as described in the DSDT */
 823                 for (; item->acpiget && *item->acpiget; ++item->acpiget) {
 824                         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
 825                                                          *item->acpiget,
 826                                                          &handle))) {
 827                                 dprintk("Found %s getter: %s\n",
 828                                                 item->name, *item->acpiget);
 829                                 item->devattr.attr.mode |= S_IRUGO;
 830                                 break;
 831                         }
 832                 }
 833
 834                 /* find the available acpiset as described in the DSDT */
 835                 for (; item->acpiset && *item->acpiset; ++item->acpiset) {
 836                         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
 837                                                          *item->acpiset,
 838                                                          &handle))) {
 839                                 dprintk("Found %s setter: %s\n",
 840                                                 item->name, *item->acpiset);
 841                                 item->devattr.attr.mode |= S_IWUSR;
 842                                 break;
 843                         }
 844                 }
 845
 846                 if (item->devattr.attr.mode != 0) {
 847                         result =
 848                             device_create_file(&sony_pf_device->dev,
 849                                                &item->devattr);
 850                         if (result)
 851                                 goto out_sysfs;
 852                 }
 853         }
 854
 855         return 0;
 856
 857       out_sysfs:
 858         for (item = sony_nc_values; item->name; ++item) {
 859                 device_remove_file(&sony_pf_device->dev, &item->devattr);
 860         }
 861         sony_pf_remove();
 862
 863       outbacklight:
 864         if (sony_backlight_device)
 865                 backlight_device_unregister(sony_backlight_device);
 866
 867         status = acpi_remove_notify_handler(sony_nc_acpi_handle,
 868                                             ACPI_DEVICE_NOTIFY,
 869                                             sony_acpi_notify);
 870         if (ACPI_FAILURE(status))
 871                 printk(KERN_WARNING DRV_PFX "unable to remove notify handler\n");
 872
 873       outinput:
 874         sony_laptop_remove_input();
 875
 876       outwalk:
 877         return result;
 878 }
 879
 880 static int sony_nc_remove(struct acpi_device *device, int type)
 881 {
 882         acpi_status status;
 883         struct sony_nc_value *item;
 884
 885         if (sony_backlight_device)
 886                 backlight_device_unregister(sony_backlight_device);
 887
 888         sony_nc_acpi_device = NULL;
 889
 890         status = acpi_remove_notify_handler(sony_nc_acpi_handle,
 891                                             ACPI_DEVICE_NOTIFY,
 892                                             sony_acpi_notify);
 893         if (ACPI_FAILURE(status))
 894                 printk(KERN_WARNING DRV_PFX "unable to remove notify handler\n");
 895
 896         for (item = sony_nc_values; item->name; ++item) {
 897                 device_remove_file(&sony_pf_device->dev, &item->devattr);
 898         }
 899
 900         sony_pf_remove();
 901         sony_laptop_remove_input();
 902         dprintk(SONY_NC_DRIVER_NAME " removed.\n");
 903
 904         return 0;
 905 }
 906
 907 static struct acpi_driver sony_nc_driver = {
 908         .name = SONY_NC_DRIVER_NAME,
 909         .class = SONY_NC_CLASS,
 910         .ids = SONY_NC_HID,
 911         .owner = THIS_MODULE,
 912         .ops = {
 913                 .add = sony_nc_add,
 914                 .remove = sony_nc_remove,
 915                 .resume = sony_nc_resume,
 916                 },
 917 };
 918
 919 /*********** SPIC (SNY6001) Device ***********/
 920
 921 #define SONYPI_DEVICE_TYPE1     0x00000001
 922 #define SONYPI_DEVICE_TYPE2     0x00000002
 923 #define SONYPI_DEVICE_TYPE3     0x00000004
 924
 925 #define SONY_PIC_EV_MASK        0xff
 926
 927 struct sony_pic_ioport {
 928         struct acpi_resource_io io;
 929         struct list_head        list;
 930 };
 931
 932 struct sony_pic_irq {
 933         struct acpi_resource_irq        irq;
 934         struct list_head                list;
 935 };
 936
 937 struct sony_pic_dev {
 938         int                     model;
 939         u8                      camera_power;
 940         u8                      bluetooth_power;
 941         u8                      wwan_power;
 942         struct acpi_device      *acpi_dev;
 943         struct sony_pic_irq     *cur_irq;
 944         struct sony_pic_ioport  *cur_ioport;
 945         struct list_head        interrupts;
 946         struct list_head        ioports;
 947         struct mutex            lock;
 948 };
 949
 950 static struct sony_pic_dev spic_dev = {
 951         .interrupts     = LIST_HEAD_INIT(spic_dev.interrupts),
 952         .ioports        = LIST_HEAD_INIT(spic_dev.ioports),
 953 };
 954
 955 /* Event masks */
 956 #define SONYPI_JOGGER_MASK                      0x00000001
 957 #define SONYPI_CAPTURE_MASK                     0x00000002
 958 #define SONYPI_FNKEY_MASK                       0x00000004
 959 #define SONYPI_BLUETOOTH_MASK                   0x00000008
 960 #define SONYPI_PKEY_MASK                        0x00000010
 961 #define SONYPI_BACK_MASK                        0x00000020
 962 #define SONYPI_HELP_MASK                        0x00000040
 963 #define SONYPI_LID_MASK                         0x00000080
 964 #define SONYPI_ZOOM_MASK                        0x00000100
 965 #define SONYPI_THUMBPHRASE_MASK                 0x00000200
 966 #define SONYPI_MEYE_MASK                        0x00000400
 967 #define SONYPI_MEMORYSTICK_MASK                 0x00000800
 968 #define SONYPI_BATTERY_MASK                     0x00001000
 969 #define SONYPI_WIRELESS_MASK                    0x00002000
 970
 971 struct sonypi_event {
 972         u8      data;
 973         u8      event;
 974 };
 975
 976 /* The set of possible button release events */
 977 static struct sonypi_event sonypi_releaseev[] = {
 978         { 0x00, SONYPI_EVENT_ANYBUTTON_RELEASED },
 979         { 0, 0 }
 980 };
 981
 982 /* The set of possible jogger events  */
 983 static struct sonypi_event sonypi_joggerev[] = {
 984         { 0x1f, SONYPI_EVENT_JOGDIAL_UP },
 985         { 0x01, SONYPI_EVENT_JOGDIAL_DOWN },
 986         { 0x5f, SONYPI_EVENT_JOGDIAL_UP_PRESSED },
 987         { 0x41, SONYPI_EVENT_JOGDIAL_DOWN_PRESSED },
 988         { 0x1e, SONYPI_EVENT_JOGDIAL_FAST_UP },
 989         { 0x02, SONYPI_EVENT_JOGDIAL_FAST_DOWN },
 990         { 0x5e, SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED },
 991         { 0x42, SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED },
 992         { 0x1d, SONYPI_EVENT_JOGDIAL_VFAST_UP },
 993         { 0x03, SONYPI_EVENT_JOGDIAL_VFAST_DOWN },
 994         { 0x5d, SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED },
 995         { 0x43, SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED },
 996         { 0x40, SONYPI_EVENT_JOGDIAL_PRESSED },
 997         { 0, 0 }
 998 };
 999
1000 /* The set of possible capture button events */
1001 static struct sonypi_event sonypi_captureev[] = {
1002         { 0x05, SONYPI_EVENT_CAPTURE_PARTIALPRESSED },
1003         { 0x07, SONYPI_EVENT_CAPTURE_PRESSED },
1004         { 0x01, SONYPI_EVENT_CAPTURE_PARTIALRELEASED },
1005         { 0, 0 }
1006 };
1007
1008 /* The set of possible fnkeys events */
1009 static struct sonypi_event sonypi_fnkeyev[] = {
1010         { 0x10, SONYPI_EVENT_FNKEY_ESC },
1011         { 0x11, SONYPI_EVENT_FNKEY_F1 },
1012         { 0x12, SONYPI_EVENT_FNKEY_F2 },
1013         { 0x13, SONYPI_EVENT_FNKEY_F3 },
1014         { 0x14, SONYPI_EVENT_FNKEY_F4 },
1015         { 0x15, SONYPI_EVENT_FNKEY_F5 },
1016         { 0x16, SONYPI_EVENT_FNKEY_F6 },
1017         { 0x17, SONYPI_EVENT_FNKEY_F7 },
1018         { 0x18, SONYPI_EVENT_FNKEY_F8 },
1019         { 0x19, SONYPI_EVENT_FNKEY_F9 },
1020         { 0x1a, SONYPI_EVENT_FNKEY_F10 },
1021         { 0x1b, SONYPI_EVENT_FNKEY_F11 },
1022         { 0x1c, SONYPI_EVENT_FNKEY_F12 },
1023         { 0x1f, SONYPI_EVENT_FNKEY_RELEASED },
1024         { 0x21, SONYPI_EVENT_FNKEY_1 },
1025         { 0x22, SONYPI_EVENT_FNKEY_2 },
1026         { 0x31, SONYPI_EVENT_FNKEY_D },
1027         { 0x32, SONYPI_EVENT_FNKEY_E },
1028         { 0x33, SONYPI_EVENT_FNKEY_F },
1029         { 0x34, SONYPI_EVENT_FNKEY_S },
1030         { 0x35, SONYPI_EVENT_FNKEY_B },
1031         { 0x36, SONYPI_EVENT_FNKEY_ONLY },
1032         { 0, 0 }
1033 };
1034
1035 /* The set of possible program key events */
1036 static struct sonypi_event sonypi_pkeyev[] = {
1037         { 0x01, SONYPI_EVENT_PKEY_P1 },
1038         { 0x02, SONYPI_EVENT_PKEY_P2 },
1039         { 0x04, SONYPI_EVENT_PKEY_P3 },
1040         { 0x5c, SONYPI_EVENT_PKEY_P1 },
1041         { 0, 0 }
1042 };
1043
1044 /* The set of possible bluetooth events */
1045 static struct sonypi_event sonypi_blueev[] = {
1046         { 0x55, SONYPI_EVENT_BLUETOOTH_PRESSED },
1047         { 0x59, SONYPI_EVENT_BLUETOOTH_ON },
1048         { 0x5a, SONYPI_EVENT_BLUETOOTH_OFF },
1049         { 0, 0 }
1050 };
1051
1052 /* The set of possible wireless events */
1053 static struct sonypi_event sonypi_wlessev[] = {
1054         { 0x59, SONYPI_EVENT_WIRELESS_ON },
1055         { 0x5a, SONYPI_EVENT_WIRELESS_OFF },
1056         { 0, 0 }
1057 };
1058
1059 /* The set of possible back button events */
1060 static struct sonypi_event sonypi_backev[] = {
1061         { 0x20, SONYPI_EVENT_BACK_PRESSED },
1062         { 0, 0 }
1063 };
1064
1065 /* The set of possible help button events */
1066 static struct sonypi_event sonypi_helpev[] = {
1067         { 0x3b, SONYPI_EVENT_HELP_PRESSED },
1068         { 0, 0 }
1069 };
1070
1071
1072 /* The set of possible lid events */
1073 static struct sonypi_event sonypi_lidev[] = {
1074         { 0x51, SONYPI_EVENT_LID_CLOSED },
1075         { 0x50, SONYPI_EVENT_LID_OPENED },
1076         { 0, 0 }
1077 };
1078
1079 /* The set of possible zoom events */
1080 static struct sonypi_event sonypi_zoomev[] = {
1081         { 0x39, SONYPI_EVENT_ZOOM_PRESSED },
1082         { 0, 0 }
1083 };
1084
1085 /* The set of possible thumbphrase events */
1086 static struct sonypi_event sonypi_thumbphraseev[] = {
1087         { 0x3a, SONYPI_EVENT_THUMBPHRASE_PRESSED },
1088         { 0, 0 }
1089 };
1090
1091 /* The set of possible motioneye camera events */
1092 static struct sonypi_event sonypi_meyeev[] = {
1093         { 0x00, SONYPI_EVENT_MEYE_FACE },
1094         { 0x01, SONYPI_EVENT_MEYE_OPPOSITE },
1095         { 0, 0 }
1096 };
1097
1098 /* The set of possible memorystick events */
1099 static struct sonypi_event sonypi_memorystickev[] = {
1100         { 0x53, SONYPI_EVENT_MEMORYSTICK_INSERT },
1101         { 0x54, SONYPI_EVENT_MEMORYSTICK_EJECT },
1102         { 0, 0 }
1103 };
1104
1105 /* The set of possible battery events */
1106 static struct sonypi_event sonypi_batteryev[] = {
1107         { 0x20, SONYPI_EVENT_BATTERY_INSERT },
1108         { 0x30, SONYPI_EVENT_BATTERY_REMOVE },
1109         { 0, 0 }
1110 };
1111
1112 static struct sonypi_eventtypes {
1113         int                     model;
1114         u8                      data;
1115         unsigned long           mask;
1116         struct sonypi_event *   events;
1117 } sony_pic_eventtypes[] = {
1118         { SONYPI_DEVICE_TYPE1, 0, 0xffffffff, sonypi_releaseev },
1119         { SONYPI_DEVICE_TYPE1, 0x70, SONYPI_MEYE_MASK, sonypi_meyeev },
1120         { SONYPI_DEVICE_TYPE1, 0x30, SONYPI_LID_MASK, sonypi_lidev },
1121         { SONYPI_DEVICE_TYPE1, 0x60, SONYPI_CAPTURE_MASK, sonypi_captureev },
1122         { SONYPI_DEVICE_TYPE1, 0x10, SONYPI_JOGGER_MASK, sonypi_joggerev },
1123         { SONYPI_DEVICE_TYPE1, 0x20, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1124         { SONYPI_DEVICE_TYPE1, 0x30, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
1125         { SONYPI_DEVICE_TYPE1, 0x40, SONYPI_PKEY_MASK, sonypi_pkeyev },
1126         { SONYPI_DEVICE_TYPE1, 0x30, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1127         { SONYPI_DEVICE_TYPE1, 0x40, SONYPI_BATTERY_MASK, sonypi_batteryev },
1128
1129         { SONYPI_DEVICE_TYPE2, 0, 0xffffffff, sonypi_releaseev },
1130         { SONYPI_DEVICE_TYPE2, 0x38, SONYPI_LID_MASK, sonypi_lidev },
1131         { SONYPI_DEVICE_TYPE2, 0x11, SONYPI_JOGGER_MASK, sonypi_joggerev },
1132         { SONYPI_DEVICE_TYPE2, 0x61, SONYPI_CAPTURE_MASK, sonypi_captureev },
1133         { SONYPI_DEVICE_TYPE2, 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1134         { SONYPI_DEVICE_TYPE2, 0x31, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
1135         { SONYPI_DEVICE_TYPE2, 0x08, SONYPI_PKEY_MASK, sonypi_pkeyev },
1136         { SONYPI_DEVICE_TYPE2, 0x11, SONYPI_BACK_MASK, sonypi_backev },
1137         { SONYPI_DEVICE_TYPE2, 0x21, SONYPI_HELP_MASK, sonypi_helpev },
1138         { SONYPI_DEVICE_TYPE2, 0x21, SONYPI_ZOOM_MASK, sonypi_zoomev },
1139         { SONYPI_DEVICE_TYPE2, 0x20, SONYPI_THUMBPHRASE_MASK, sonypi_thumbphraseev },
1140         { SONYPI_DEVICE_TYPE2, 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1141         { SONYPI_DEVICE_TYPE2, 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
1142         { SONYPI_DEVICE_TYPE2, 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
1143
1144         { SONYPI_DEVICE_TYPE3, 0, 0xffffffff, sonypi_releaseev },
1145         { SONYPI_DEVICE_TYPE3, 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1146         { SONYPI_DEVICE_TYPE3, 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
1147         { SONYPI_DEVICE_TYPE3, 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1148         { SONYPI_DEVICE_TYPE3, 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
1149         { SONYPI_DEVICE_TYPE3, 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
1150         { 0 }
1151 };
1152
1153 static int sony_pic_detect_device_type(void)
1154 {
1155         struct pci_dev *pcidev;
1156         int model = 0;
1157
1158         if ((pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1159                                      PCI_DEVICE_ID_INTEL_82371AB_3, NULL)))
1160                 model = SONYPI_DEVICE_TYPE1;
1161
1162         else if ((pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1163                                           PCI_DEVICE_ID_INTEL_ICH6_1, NULL)))
1164                 model = SONYPI_DEVICE_TYPE3;
1165
1166         else if ((pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1167                                           PCI_DEVICE_ID_INTEL_ICH7_1, NULL)))
1168                 model = SONYPI_DEVICE_TYPE3;
1169
1170         else
1171                 model = SONYPI_DEVICE_TYPE2;
1172
1173         if (pcidev)
1174                 pci_dev_put(pcidev);
1175
1176         printk(KERN_INFO DRV_PFX "detected Type%d model\n",
1177                         model == SONYPI_DEVICE_TYPE1 ? 1 :
1178                         model == SONYPI_DEVICE_TYPE2 ? 2 : 3);
1179         return model;
1180 }
1181
1182 #define ITERATIONS_LONG         10000
1183 #define ITERATIONS_SHORT        10
1184 #define wait_on_command(command, iterations) {                          \
1185         unsigned int n = iterations;                                    \
1186         while (--n && (command))                                        \
1187                 udelay(1);                                              \
1188         if (!n)                                                         \
1189                 dprintk("command failed at %s : %s (line %d)\n",        \
1190                                 __FILE__, __FUNCTION__, __LINE__);      \
1191 }
1192
1193 static u8 sony_pic_call1(u8 dev)
1194 {
1195         u8 v1, v2;
1196
1197         wait_on_command(inb_p(spic_dev.cur_ioport->io.minimum + 4) & 2,
1198                         ITERATIONS_LONG);
1199         outb(dev, spic_dev.cur_ioport->io.minimum + 4);
1200         v1 = inb_p(spic_dev.cur_ioport->io.minimum + 4);
1201         v2 = inb_p(spic_dev.cur_ioport->io.minimum);
1202         dprintk("sony_pic_call1: 0x%.4x\n", (v2 << 8) | v1);
1203         return v2;
1204 }
1205
1206 static u8 sony_pic_call2(u8 dev, u8 fn)
1207 {
1208         u8 v1;
1209
1210         wait_on_command(inb_p(spic_dev.cur_ioport->io.minimum + 4) & 2,
1211                         ITERATIONS_LONG);
1212         outb(dev, spic_dev.cur_ioport->io.minimum + 4);
1213         wait_on_command(inb_p(spic_dev.cur_ioport->io.minimum + 4) & 2,
1214                         ITERATIONS_LONG);
1215         outb(fn, spic_dev.cur_ioport->io.minimum);
1216         v1 = inb_p(spic_dev.cur_ioport->io.minimum);
1217         dprintk("sony_pic_call2: 0x%.4x\n", v1);
1218         return v1;
1219 }
1220
1221 static u8 sony_pic_call3(u8 dev, u8 fn, u8 v)
1222 {
1223         u8 v1;
1224
1225         wait_on_command(inb_p(spic_dev.cur_ioport->io.minimum + 4) & 2, ITERATIONS_LONG);
1226         outb(dev, spic_dev.cur_ioport->io.minimum + 4);
1227         wait_on_command(inb_p(spic_dev.cur_ioport->io.minimum + 4) & 2, ITERATIONS_LONG);
1228         outb(fn, spic_dev.cur_ioport->io.minimum);
1229         wait_on_command(inb_p(spic_dev.cur_ioport->io.minimum + 4) & 2, ITERATIONS_LONG);
1230         outb(v, spic_dev.cur_ioport->io.minimum);
1231         v1 = inb_p(spic_dev.cur_ioport->io.minimum);
1232         dprintk("sony_pic_call3: 0x%.4x\n", v1);
1233         return v1;
1234 }
1235
1236 /* camera tests and poweron/poweroff */
1237 #define SONYPI_CAMERA_PICTURE           5
1238 #define SONYPI_CAMERA_CONTROL           0x10
1239
1240 #define SONYPI_CAMERA_BRIGHTNESS                0
1241 #define SONYPI_CAMERA_CONTRAST                  1
1242 #define SONYPI_CAMERA_HUE                       2
1243 #define SONYPI_CAMERA_COLOR                     3
1244 #define SONYPI_CAMERA_SHARPNESS                 4
1245
1246 #define SONYPI_CAMERA_EXPOSURE_MASK             0xC
1247 #define SONYPI_CAMERA_WHITE_BALANCE_MASK        0x3
1248 #define SONYPI_CAMERA_PICTURE_MODE_MASK         0x30
1249 #define SONYPI_CAMERA_MUTE_MASK                 0x40
1250
1251 /* the rest don't need a loop until not 0xff */
1252 #define SONYPI_CAMERA_AGC                       6
1253 #define SONYPI_CAMERA_AGC_MASK                  0x30
1254 #define SONYPI_CAMERA_SHUTTER_MASK              0x7
1255
1256 #define SONYPI_CAMERA_SHUTDOWN_REQUEST          7
1257 #define SONYPI_CAMERA_CONTROL                   0x10
1258
1259 #define SONYPI_CAMERA_STATUS                    7
1260 #define SONYPI_CAMERA_STATUS_READY              0x2
1261 #define SONYPI_CAMERA_STATUS_POSITION           0x4
1262
1263 #define SONYPI_DIRECTION_BACKWARDS              0x4
1264
1265 #define SONYPI_CAMERA_REVISION                  8
1266 #define SONYPI_CAMERA_ROMVERSION                9
1267
1268 static int __sony_pic_camera_ready(void)
1269 {
1270         u8 v;
1271
1272         v = sony_pic_call2(0x8f, SONYPI_CAMERA_STATUS);
1273         return (v != 0xff && (v & SONYPI_CAMERA_STATUS_READY));
1274 }
1275
1276 static int __sony_pic_camera_off(void)
1277 {
1278         if (!camera) {
1279                 printk(KERN_WARNING DRV_PFX "camera control not enabled\n");
1280                 return -ENODEV;
1281         }
1282
1283         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE,
1284                                 SONYPI_CAMERA_MUTE_MASK),
1285                         ITERATIONS_SHORT);
1286
1287         if (spic_dev.camera_power) {
1288                 sony_pic_call2(0x91, 0);
1289                 spic_dev.camera_power = 0;
1290         }
1291         return 0;
1292 }
1293
1294 static int __sony_pic_camera_on(void)
1295 {
1296         int i, j, x;
1297
1298         if (!camera) {
1299                 printk(KERN_WARNING DRV_PFX "camera control not enabled\n");
1300                 return -ENODEV;
1301         }
1302
1303         if (spic_dev.camera_power)
1304                 return 0;
1305
1306         for (j = 5; j > 0; j--) {
1307
1308                 for (x = 0; x < 100 && sony_pic_call2(0x91, 0x1); x++)
1309                         msleep(10);
1310                 sony_pic_call1(0x93);
1311
1312                 for (i = 400; i > 0; i--) {
1313                         if (__sony_pic_camera_ready())
1314                                 break;
1315                         msleep(10);
1316                 }
1317                 if (i)
1318                         break;
1319         }
1320
1321         if (j == 0) {
1322                 printk(KERN_WARNING DRV_PFX "failed to power on camera\n");
1323                 return -ENODEV;
1324         }
1325
1326         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTROL,
1327                                 0x5a),
1328                         ITERATIONS_SHORT);
1329
1330         spic_dev.camera_power = 1;
1331         return 0;
1332 }
1333
1334 /* External camera command (exported to the motion eye v4l driver) */
1335 int sony_pic_camera_command(int command, u8 value)
1336 {
1337         if (!camera)
1338                 return -EIO;
1339
1340         mutex_lock(&spic_dev.lock);
1341
1342         switch (command) {
1343         case SONY_PIC_COMMAND_SETCAMERA:
1344                 if (value)
1345                         __sony_pic_camera_on();
1346                 else
1347                         __sony_pic_camera_off();
1348                 break;
1349         case SONY_PIC_COMMAND_SETCAMERABRIGHTNESS:
1350                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_BRIGHTNESS, value),
1351                                 ITERATIONS_SHORT);
1352                 break;
1353         case SONY_PIC_COMMAND_SETCAMERACONTRAST:
1354                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTRAST, value),
1355                                 ITERATIONS_SHORT);
1356                 break;
1357         case SONY_PIC_COMMAND_SETCAMERAHUE:
1358                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_HUE, value),
1359                                 ITERATIONS_SHORT);
1360                 break;
1361         case SONY_PIC_COMMAND_SETCAMERACOLOR:
1362                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_COLOR, value),
1363                                 ITERATIONS_SHORT);
1364                 break;
1365         case SONY_PIC_COMMAND_SETCAMERASHARPNESS:
1366                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_SHARPNESS, value),
1367                                 ITERATIONS_SHORT);
1368                 break;
1369         case SONY_PIC_COMMAND_SETCAMERAPICTURE:
1370                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE, value),
1371                                 ITERATIONS_SHORT);
1372                 break;
1373         case SONY_PIC_COMMAND_SETCAMERAAGC:
1374                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_AGC, value),
1375                                 ITERATIONS_SHORT);
1376                 break;
1377         default:
1378                 printk(KERN_ERR DRV_PFX "sony_pic_camera_command invalid: %d\n",
1379                        command);
1380                 break;
1381         }
1382         mutex_unlock(&spic_dev.lock);
1383         return 0;
1384 }
1385 EXPORT_SYMBOL(sony_pic_camera_command);
1386
1387 /* gprs/edge modem (SZ460N and SZ210P), thanks to Joshua Wise */
1388 static void sony_pic_set_wwanpower(u8 state)
1389 {
1390         state = !!state;
1391         mutex_lock(&spic_dev.lock);
1392         if (spic_dev.wwan_power == state) {
1393                 mutex_unlock(&spic_dev.lock);
1394                 return;
1395         }
1396         sony_pic_call2(0xB0, state);
1397         spic_dev.wwan_power = state;
1398         mutex_unlock(&spic_dev.lock);
1399 }
1400
1401 static ssize_t sony_pic_wwanpower_store(struct device *dev,
1402                 struct device_attribute *attr,
1403                 const char *buffer, size_t count)
1404 {
1405         unsigned long value;
1406         if (count > 31)
1407                 return -EINVAL;
1408
1409         value = simple_strtoul(buffer, NULL, 10);
1410         sony_pic_set_wwanpower(value);
1411
1412         return count;
1413 }
1414
1415 static ssize_t sony_pic_wwanpower_show(struct device *dev,
1416                 struct device_attribute *attr, char *buffer)
1417 {
1418         ssize_t count;
1419         mutex_lock(&spic_dev.lock);
1420         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.wwan_power);
1421         mutex_unlock(&spic_dev.lock);
1422         return count;
1423 }
1424
1425 /* bluetooth subsystem power state */
1426 static void __sony_pic_set_bluetoothpower(u8 state)
1427 {
1428         state = !!state;
1429         if (spic_dev.bluetooth_power == state)
1430                 return;
1431         sony_pic_call2(0x96, state);
1432         sony_pic_call1(0x82);
1433         spic_dev.bluetooth_power = state;
1434 }
1435
1436 static ssize_t sony_pic_bluetoothpower_store(struct device *dev,
1437                 struct device_attribute *attr,
1438                 const char *buffer, size_t count)
1439 {
1440         unsigned long value;
1441         if (count > 31)
1442                 return -EINVAL;
1443
1444         value = simple_strtoul(buffer, NULL, 10);
1445         mutex_lock(&spic_dev.lock);
1446         __sony_pic_set_bluetoothpower(value);
1447         mutex_unlock(&spic_dev.lock);
1448
1449         return count;
1450 }
1451
1452 static ssize_t sony_pic_bluetoothpower_show(struct device *dev,
1453                 struct device_attribute *attr, char *buffer)
1454 {
1455         ssize_t count = 0;
1456         mutex_lock(&spic_dev.lock);
1457         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.bluetooth_power);
1458         mutex_unlock(&spic_dev.lock);
1459         return count;
1460 }
1461
1462 /* fan speed */
1463 /* FAN0 information (reverse engineered from ACPI tables) */
1464 #define SONY_PIC_FAN0_STATUS    0x93
1465 static int sony_pic_set_fanspeed(unsigned long value)
1466 {
1467         return ec_write(SONY_PIC_FAN0_STATUS, value);
1468 }
1469
1470 static int sony_pic_get_fanspeed(u8 *value)
1471 {
1472         return ec_read(SONY_PIC_FAN0_STATUS, value);
1473 }
1474
1475 static ssize_t sony_pic_fanspeed_store(struct device *dev,
1476                 struct device_attribute *attr,
1477                 const char *buffer, size_t count)
1478 {
1479         unsigned long value;
1480         if (count > 31)
1481                 return -EINVAL;
1482
1483         value = simple_strtoul(buffer, NULL, 10);
1484         if (sony_pic_set_fanspeed(value))
1485                 return -EIO;
1486
1487         return count;
1488 }
1489
1490 static ssize_t sony_pic_fanspeed_show(struct device *dev,
1491                 struct device_attribute *attr, char *buffer)
1492 {
1493         u8 value = 0;
1494         if (sony_pic_get_fanspeed(&value))
1495                 return -EIO;
1496
1497         return snprintf(buffer, PAGE_SIZE, "%d\n", value);
1498 }
1499
1500 #define SPIC_ATTR(_name, _mode)                                 \
1501 struct device_attribute spic_attr_##_name = __ATTR(_name,       \
1502                 _mode, sony_pic_## _name ##_show,               \
1503                 sony_pic_## _name ##_store)
1504
1505 static SPIC_ATTR(bluetoothpower, 0644);
1506 static SPIC_ATTR(wwanpower, 0644);
1507 static SPIC_ATTR(fanspeed, 0644);
1508
1509 static struct attribute *spic_attributes[] = {
1510         &spic_attr_bluetoothpower.attr,
1511         &spic_attr_wwanpower.attr,
1512         &spic_attr_fanspeed.attr,
1513         NULL
1514 };
1515
1516 static struct attribute_group spic_attribute_group = {
1517         .attrs = spic_attributes
1518 };
1519
1520 /******** SONYPI compatibility **********/
1521 #ifdef CONFIG_SONYPI_COMPAT
1522
1523 /* battery / brightness / temperature  addresses */
1524 #define SONYPI_BAT_FLAGS        0x81
1525 #define SONYPI_LCD_LIGHT        0x96
1526 #define SONYPI_BAT1_PCTRM       0xa0
1527 #define SONYPI_BAT1_LEFT        0xa2
1528 #define SONYPI_BAT1_MAXRT       0xa4
1529 #define SONYPI_BAT2_PCTRM       0xa8
1530 #define SONYPI_BAT2_LEFT        0xaa
1531 #define SONYPI_BAT2_MAXRT       0xac
1532 #define SONYPI_BAT1_MAXTK       0xb0
1533 #define SONYPI_BAT1_FULL        0xb2
1534 #define SONYPI_BAT2_MAXTK       0xb8
1535 #define SONYPI_BAT2_FULL        0xba
1536 #define SONYPI_TEMP_STATUS      0xC1
1537
1538 struct sonypi_compat_s {
1539         struct fasync_struct    *fifo_async;
1540         struct kfifo            *fifo;
1541         spinlock_t              fifo_lock;
1542         wait_queue_head_t       fifo_proc_list;
1543         atomic_t                open_count;
1544 };
1545 static struct sonypi_compat_s sonypi_compat = {
1546         .open_count = ATOMIC_INIT(0),
1547 };
1548
1549 static int sonypi_misc_fasync(int fd, struct file *filp, int on)
1550 {
1551         int retval;
1552
1553         retval = fasync_helper(fd, filp, on, &sonypi_compat.fifo_async);
1554         if (retval < 0)
1555                 return retval;
1556         return 0;
1557 }
1558
1559 static int sonypi_misc_release(struct inode *inode, struct file *file)
1560 {
1561         sonypi_misc_fasync(-1, file, 0);
1562         atomic_dec(&sonypi_compat.open_count);
1563         return 0;
1564 }
1565
1566 static int sonypi_misc_open(struct inode *inode, struct file *file)
1567 {
1568         /* Flush input queue on first open */
1569         if (atomic_inc_return(&sonypi_compat.open_count) == 1)
1570                 kfifo_reset(sonypi_compat.fifo);
1571         return 0;
1572 }
1573
1574 static ssize_t sonypi_misc_read(struct file *file, char __user *buf,
1575                                 size_t count, loff_t *pos)
1576 {
1577         ssize_t ret;
1578         unsigned char c;
1579
1580         if ((kfifo_len(sonypi_compat.fifo) == 0) &&
1581             (file->f_flags & O_NONBLOCK))
1582                 return -EAGAIN;
1583
1584         ret = wait_event_interruptible(sonypi_compat.fifo_proc_list,
1585                                        kfifo_len(sonypi_compat.fifo) != 0);
1586         if (ret)
1587                 return ret;
1588
1589         while (ret < count &&
1590                (kfifo_get(sonypi_compat.fifo, &c, sizeof(c)) == sizeof(c))) {
1591                 if (put_user(c, buf++))
1592                         return -EFAULT;
1593                 ret++;
1594         }
1595
1596         if (ret > 0) {
1597                 struct inode *inode = file->f_path.dentry->d_inode;
1598                 inode->i_atime = current_fs_time(inode->i_sb);
1599         }
1600
1601         return ret;
1602 }
1603
1604 static unsigned int sonypi_misc_poll(struct file *file, poll_table *wait)
1605 {
1606         poll_wait(file, &sonypi_compat.fifo_proc_list, wait);
1607         if (kfifo_len(sonypi_compat.fifo))
1608                 return POLLIN | POLLRDNORM;
1609         return 0;
1610 }
1611
1612 static int ec_read16(u8 addr, u16 *value)
1613 {
1614         u8 val_lb, val_hb;
1615         if (ec_read(addr, &val_lb))
1616                 return -1;
1617         if (ec_read(addr + 1, &val_hb))
1618                 return -1;
1619         *value = val_lb | (val_hb << 8);
1620         return 0;
1621 }
1622
1623 static int sonypi_misc_ioctl(struct inode *ip, struct file *fp,
1624                              unsigned int cmd, unsigned long arg)
1625 {
1626         int ret = 0;
1627         void __user *argp = (void __user *)arg;
1628         u8 val8;
1629         u16 val16;
1630         int value;
1631
1632         mutex_lock(&spic_dev.lock);
1633         switch (cmd) {
1634         case SONYPI_IOCGBRT:
1635                 if (sony_backlight_device == NULL) {
1636                         ret = -EIO;
1637                         break;
1638                 }
1639                 if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value)) {
1640                         ret = -EIO;
1641                         break;
1642                 }
1643                 val8 = ((value & 0xff) - 1) << 5;
1644                 if (copy_to_user(argp, &val8, sizeof(val8)))
1645                                 ret = -EFAULT;
1646                 break;
1647         case SONYPI_IOCSBRT:
1648                 if (sony_backlight_device == NULL) {
1649                         ret = -EIO;
1650                         break;
1651                 }
1652                 if (copy_from_user(&val8, argp, sizeof(val8))) {
1653                         ret = -EFAULT;
1654                         break;
1655                 }
1656                 if (acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
1657                                 (val8 >> 5) + 1, NULL)) {
1658                         ret = -EIO;
1659                         break;
1660                 }
1661                 /* sync the backlight device status */
1662                 sony_backlight_device->props.brightness =
1663                     sony_backlight_get_brightness(sony_backlight_device);
1664                 break;
1665         case SONYPI_IOCGBAT1CAP:
1666                 if (ec_read16(SONYPI_BAT1_FULL, &val16)) {
1667                         ret = -EIO;
1668                         break;
1669                 }
1670                 if (copy_to_user(argp, &val16, sizeof(val16)))
1671                         ret = -EFAULT;
1672                 break;
1673         case SONYPI_IOCGBAT1REM:
1674                 if (ec_read16(SONYPI_BAT1_LEFT, &val16)) {
1675                         ret = -EIO;
1676                         break;
1677                 }
1678                 if (copy_to_user(argp, &val16, sizeof(val16)))
1679                         ret = -EFAULT;
1680                 break;
1681         case SONYPI_IOCGBAT2CAP:
1682                 if (ec_read16(SONYPI_BAT2_FULL, &val16)) {
1683                         ret = -EIO;
1684                         break;
1685                 }
1686                 if (copy_to_user(argp, &val16, sizeof(val16)))
1687                         ret = -EFAULT;
1688                 break;
1689         case SONYPI_IOCGBAT2REM:
1690                 if (ec_read16(SONYPI_BAT2_LEFT, &val16)) {
1691                         ret = -EIO;
1692                         break;
1693                 }
1694                 if (copy_to_user(argp, &val16, sizeof(val16)))
1695                         ret = -EFAULT;
1696                 break;
1697         case SONYPI_IOCGBATFLAGS:
1698                 if (ec_read(SONYPI_BAT_FLAGS, &val8)) {
1699                         ret = -EIO;
1700                         break;
1701                 }
1702                 val8 &= 0x07;
1703                 if (copy_to_user(argp, &val8, sizeof(val8)))
1704                         ret = -EFAULT;
1705                 break;
1706         case SONYPI_IOCGBLUE:
1707                 val8 = spic_dev.bluetooth_power;
1708                 if (copy_to_user(argp, &val8, sizeof(val8)))
1709                         ret = -EFAULT;
1710                 break;
1711         case SONYPI_IOCSBLUE:
1712                 if (copy_from_user(&val8, argp, sizeof(val8))) {
1713                         ret = -EFAULT;
1714                         break;
1715                 }
1716                 __sony_pic_set_bluetoothpower(val8);
1717                 break;
1718         /* FAN Controls */
1719         case SONYPI_IOCGFAN:
1720                 if (sony_pic_get_fanspeed(&val8)) {
1721                         ret = -EIO;
1722                         break;
1723                 }
1724                 if (copy_to_user(argp, &val8, sizeof(val8)))
1725                         ret = -EFAULT;
1726                 break;
1727         case SONYPI_IOCSFAN:
1728                 if (copy_from_user(&val8, argp, sizeof(val8))) {
1729                         ret = -EFAULT;
1730                         break;
1731                 }
1732                 if (sony_pic_set_fanspeed(val8))
1733                         ret = -EIO;
1734                 break;
1735         /* GET Temperature (useful under APM) */
1736         case SONYPI_IOCGTEMP:
1737                 if (ec_read(SONYPI_TEMP_STATUS, &val8)) {
1738                         ret = -EIO;
1739                         break;
1740                 }
1741                 if (copy_to_user(argp, &val8, sizeof(val8)))
1742                         ret = -EFAULT;
1743                 break;
1744         default:
1745                 ret = -EINVAL;
1746         }
1747         mutex_unlock(&spic_dev.lock);
1748         return ret;
1749 }
1750
1751 static const struct file_operations sonypi_misc_fops = {
1752         .owner          = THIS_MODULE,
1753         .read           = sonypi_misc_read,
1754         .poll           = sonypi_misc_poll,
1755         .open           = sonypi_misc_open,
1756         .release        = sonypi_misc_release,
1757         .fasync         = sonypi_misc_fasync,
1758         .ioctl          = sonypi_misc_ioctl,
1759 };
1760
1761 static struct miscdevice sonypi_misc_device = {
1762         .minor          = MISC_DYNAMIC_MINOR,
1763         .name           = "sonypi",
1764         .fops           = &sonypi_misc_fops,
1765 };
1766
1767 static void sonypi_compat_report_event(u8 event)
1768 {
1769         kfifo_put(sonypi_compat.fifo, (unsigned char *)&event, sizeof(event));
1770         kill_fasync(&sonypi_compat.fifo_async, SIGIO, POLL_IN);
1771         wake_up_interruptible(&sonypi_compat.fifo_proc_list);
1772 }
1773
1774 static int sonypi_compat_init(void)
1775 {
1776         int error;
1777
1778         spin_lock_init(&sonypi_compat.fifo_lock);
1779         sonypi_compat.fifo = kfifo_alloc(SONY_LAPTOP_BUF_SIZE, GFP_KERNEL,
1780                                          &sonypi_compat.fifo_lock);
1781         if (IS_ERR(sonypi_compat.fifo)) {
1782                 printk(KERN_ERR DRV_PFX "kfifo_alloc failed\n");
1783                 return PTR_ERR(sonypi_compat.fifo);
1784         }
1785
1786         init_waitqueue_head(&sonypi_compat.fifo_proc_list);
1787
1788         if (minor != -1)
1789                 sonypi_misc_device.minor = minor;
1790         error = misc_register(&sonypi_misc_device);
1791         if (error) {
1792                 printk(KERN_ERR DRV_PFX "misc_register failed\n");
1793                 goto err_free_kfifo;
1794         }
1795         if (minor == -1)
1796                 printk(KERN_INFO DRV_PFX "device allocated minor is %d\n",
1797                        sonypi_misc_device.minor);
1798
1799         return 0;
1800
1801 err_free_kfifo:
1802         kfifo_free(sonypi_compat.fifo);
1803         return error;
1804 }
1805
1806 static void sonypi_compat_exit(void)
1807 {
1808         misc_deregister(&sonypi_misc_device);
1809         kfifo_free(sonypi_compat.fifo);
1810 }
1811 #else
1812 static int sonypi_compat_init(void) { return 0; }
1813 static void sonypi_compat_exit(void) { }
1814 static void sonypi_compat_report_event(u8 event) { }
1815 #endif /* CONFIG_SONYPI_COMPAT */
1816
1817 /*
1818  * ACPI callbacks
1819  */
1820 static acpi_status
1821 sony_pic_read_possible_resource(struct acpi_resource *resource, void *context)
1822 {
1823         u32 i;
1824         struct sony_pic_dev *dev = (struct sony_pic_dev *)context;
1825
1826         switch (resource->type) {
1827         case ACPI_RESOURCE_TYPE_START_DEPENDENT:
1828         case ACPI_RESOURCE_TYPE_END_DEPENDENT:
1829                 return AE_OK;
1830
1831         case ACPI_RESOURCE_TYPE_IRQ:
1832                 {
1833                         struct acpi_resource_irq *p = &resource->data.irq;
1834                         struct sony_pic_irq *interrupt = NULL;
1835                         if (!p || !p->interrupt_count) {
1836                                 /*
1837                                  * IRQ descriptors may have no IRQ# bits set,
1838                                  * particularly those those w/ _STA disabled
1839                                  */
1840                                 dprintk("Blank IRQ resource\n");
1841                                 return AE_OK;
1842                         }
1843                         for (i = 0; i < p->interrupt_count; i++) {
1844                                 if (!p->interrupts[i]) {
1845                                         printk(KERN_WARNING DRV_PFX
1846                                                         "Invalid IRQ %d\n",
1847                                                         p->interrupts[i]);
1848                                         continue;
1849                                 }
1850                                 interrupt = kzalloc(sizeof(*interrupt),
1851                                                 GFP_KERNEL);
1852                                 if (!interrupt)
1853                                         return AE_ERROR;
1854
1855                                 list_add_tail(&interrupt->list, &dev->interrupts);
1856                                 interrupt->irq.triggering = p->triggering;
1857                                 interrupt->irq.polarity = p->polarity;
1858                                 interrupt->irq.sharable = p->sharable;
1859                                 interrupt->irq.interrupt_count = 1;
1860                                 interrupt->irq.interrupts[0] = p->interrupts[i];
1861                         }
1862                         return AE_OK;
1863                 }
1864         case ACPI_RESOURCE_TYPE_IO:
1865                 {
1866                         struct acpi_resource_io *io = &resource->data.io;
1867                         struct sony_pic_ioport *ioport = NULL;
1868                         if (!io) {
1869                                 dprintk("Blank IO resource\n");
1870                                 return AE_OK;
1871                         }
1872
1873                         ioport = kzalloc(sizeof(*ioport), GFP_KERNEL);
1874                         if (!ioport)
1875                                 return AE_ERROR;
1876
1877                         list_add_tail(&ioport->list, &dev->ioports);
1878                         memcpy(&ioport->io, io, sizeof(*io));
1879                         return AE_OK;
1880                 }
1881         default:
1882                 dprintk("Resource %d isn't an IRQ nor an IO port\n",
1883                                 resource->type);
1884
1885         case ACPI_RESOURCE_TYPE_END_TAG:
1886                 return AE_OK;
1887         }
1888         return AE_CTRL_TERMINATE;
1889 }
1890
1891 static int sony_pic_possible_resources(struct acpi_device *device)
1892 {
1893         int result = 0;
1894         acpi_status status = AE_OK;
1895
1896         if (!device)
1897                 return -EINVAL;
1898
1899         /* get device status */
1900         /* see acpi_pci_link_get_current acpi_pci_link_get_possible */
1901         dprintk("Evaluating _STA\n");
1902         result = acpi_bus_get_status(device);
1903         if (result) {
1904                 printk(KERN_WARNING DRV_PFX "Unable to read status\n");
1905                 goto end;
1906         }
1907
1908         if (!device->status.enabled)
1909                 dprintk("Device disabled\n");
1910         else
1911                 dprintk("Device enabled\n");
1912
1913         /*
1914          * Query and parse 'method'
1915          */
1916         dprintk("Evaluating %s\n", METHOD_NAME__PRS);
1917         status = acpi_walk_resources(device->handle, METHOD_NAME__PRS,
1918                         sony_pic_read_possible_resource, &spic_dev);
1919         if (ACPI_FAILURE(status)) {
1920                 printk(KERN_WARNING DRV_PFX
1921                                 "Failure evaluating %s\n",
1922                                 METHOD_NAME__PRS);
1923                 result = -ENODEV;
1924         }
1925 end:
1926         return result;
1927 }
1928
1929 /*
1930  *  Disable the spic device by calling its _DIS method
1931  */
1932 static int sony_pic_disable(struct acpi_device *device)
1933 {
1934         if (ACPI_FAILURE(acpi_evaluate_object(device->handle,
1935                         "_DIS", NULL, NULL)))
1936                 return -ENXIO;
1937
1938         dprintk("Device disabled\n");
1939         return 0;
1940 }
1941
1942
1943 /*
1944  *  Based on drivers/acpi/pci_link.c:acpi_pci_link_set
1945  *
1946  *  Call _SRS to set current resources
1947  */
1948 static int sony_pic_enable(struct acpi_device *device,
1949                 struct sony_pic_ioport *ioport, struct sony_pic_irq *irq)
1950 {
1951         acpi_status status;
1952         int result = 0;
1953         struct {
1954                 struct acpi_resource io_res;
1955                 struct acpi_resource irq_res;
1956                 struct acpi_resource end;
1957         } *resource;
1958         struct acpi_buffer buffer = { 0, NULL };
1959
1960         if (!ioport || !irq)
1961                 return -EINVAL;
1962
1963         /* init acpi_buffer */
1964         resource = kzalloc(sizeof(*resource) + 1, GFP_KERNEL);
1965         if (!resource)
1966                 return -ENOMEM;
1967
1968         buffer.length = sizeof(*resource) + 1;
1969         buffer.pointer = resource;
1970
1971         /* setup io resource */
1972         resource->io_res.type = ACPI_RESOURCE_TYPE_IO;
1973         resource->io_res.length = sizeof(struct acpi_resource);
1974         memcpy(&resource->io_res.data.io, &ioport->io,
1975                         sizeof(struct acpi_resource_io));
1976
1977         /* setup irq resource */
1978         resource->irq_res.type = ACPI_RESOURCE_TYPE_IRQ;
1979         resource->irq_res.length = sizeof(struct acpi_resource);
1980         memcpy(&resource->irq_res.data.irq, &irq->irq,
1981                         sizeof(struct acpi_resource_irq));
1982         /* we requested a shared irq */
1983         resource->irq_res.data.irq.sharable = ACPI_SHARED;
1984
1985         resource->end.type = ACPI_RESOURCE_TYPE_END_TAG;
1986
1987         /* Attempt to set the resource */
1988         dprintk("Evaluating _SRS\n");
1989         status = acpi_set_current_resources(device->handle, &buffer);
1990
1991         /* check for total failure */
1992         if (ACPI_FAILURE(status)) {
1993                 printk(KERN_ERR DRV_PFX "Error evaluating _SRS");
1994                 result = -ENODEV;
1995                 goto end;
1996         }
1997
1998         /* Necessary device initializations calls (from sonypi) */
1999         sony_pic_call1(0x82);
2000         sony_pic_call2(0x81, 0xff);
2001         sony_pic_call1(compat ? 0x92 : 0x82);
2002
2003 end:
2004         kfree(resource);
2005         return result;
2006 }
2007
2008 /*****************
2009  *
2010  * ISR: some event is available
2011  *
2012  *****************/
2013 static irqreturn_t sony_pic_irq(int irq, void *dev_id)
2014 {
2015         int i, j;
2016         u32 port_val = 0;
2017         u8 ev = 0;
2018         u8 data_mask = 0;
2019         u8 device_event = 0;
2020
2021         struct sony_pic_dev *dev = (struct sony_pic_dev *) dev_id;
2022
2023         acpi_os_read_port(dev->cur_ioport->io.minimum, &port_val,
2024                         dev->cur_ioport->io.address_length);
2025         ev = port_val & SONY_PIC_EV_MASK;
2026         data_mask = 0xff & (port_val >> (dev->cur_ioport->io.address_length - 8));
2027
2028         dprintk("event (0x%.8x [%.2x] [%.2x]) at port 0x%.4x\n",
2029                         port_val, ev, data_mask, dev->cur_ioport->io.minimum);
2030
2031         if (ev == 0x00 || ev == 0xff)
2032                 return IRQ_HANDLED;
2033
2034         for (i = 0; sony_pic_eventtypes[i].model; i++) {
2035
2036                 if (spic_dev.model != sony_pic_eventtypes[i].model)
2037                         continue;
2038
2039                 if ((data_mask & sony_pic_eventtypes[i].data) !=
2040                     sony_pic_eventtypes[i].data)
2041                         continue;
2042
2043                 if (!(mask & sony_pic_eventtypes[i].mask))
2044                         continue;
2045
2046                 for (j = 0; sony_pic_eventtypes[i].events[j].event; j++) {
2047                         if (ev == sony_pic_eventtypes[i].events[j].data) {
2048                                 device_event =
2049                                         sony_pic_eventtypes[i].events[j].event;
2050                                 goto found;
2051                         }
2052                 }
2053         }
2054         return IRQ_HANDLED;
2055
2056 found:
2057         sony_laptop_report_input_event(device_event);
2058         acpi_bus_generate_event(spic_dev.acpi_dev, 1, device_event);
2059         sonypi_compat_report_event(device_event);
2060
2061         return IRQ_HANDLED;
2062 }
2063
2064 /*****************
2065  *
2066  *  ACPI driver
2067  *
2068  *****************/
2069 static int sony_pic_remove(struct acpi_device *device, int type)
2070 {
2071         struct sony_pic_ioport *io, *tmp_io;
2072         struct sony_pic_irq *irq, *tmp_irq;
2073
2074         sonypi_compat_exit();
2075
2076         if (sony_pic_disable(device)) {
2077                 printk(KERN_ERR DRV_PFX "Couldn't disable device.\n");
2078                 return -ENXIO;
2079         }
2080
2081         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
2082         release_region(spic_dev.cur_ioport->io.minimum,
2083                         spic_dev.cur_ioport->io.address_length);
2084
2085         sony_laptop_remove_input();
2086
2087         /* pf attrs */
2088         sysfs_remove_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
2089         sony_pf_remove();
2090
2091         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
2092                 list_del(&io->list);
2093                 kfree(io);
2094         }
2095         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
2096                 list_del(&irq->list);
2097                 kfree(irq);
2098         }
2099         spic_dev.cur_ioport = NULL;
2100         spic_dev.cur_irq = NULL;
2101
2102         dprintk(SONY_PIC_DRIVER_NAME " removed.\n");
2103         return 0;
2104 }
2105
2106 static int sony_pic_add(struct acpi_device *device)
2107 {
2108         int result;
2109         struct sony_pic_ioport *io, *tmp_io;
2110         struct sony_pic_irq *irq, *tmp_irq;
2111
2112         printk(KERN_INFO DRV_PFX "%s v%s.\n",
2113                 SONY_PIC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
2114
2115         spic_dev.acpi_dev = device;
2116         strcpy(acpi_device_class(device), "sony/hotkey");
2117         spic_dev.model = sony_pic_detect_device_type();
2118         mutex_init(&spic_dev.lock);
2119
2120         /* read _PRS resources */
2121         result = sony_pic_possible_resources(device);
2122         if (result) {
2123                 printk(KERN_ERR DRV_PFX
2124                                 "Unabe to read possible resources.\n");
2125                 goto err_free_resources;
2126         }
2127
2128         /* setup input devices and helper fifo */
2129         result = sony_laptop_setup_input();
2130         if (result) {
2131                 printk(KERN_ERR DRV_PFX
2132                                 "Unabe to create input devices.\n");
2133                 goto err_free_resources;
2134         }
2135
2136         /* request io port */
2137         list_for_each_entry(io, &spic_dev.ioports, list) {
2138                 if (request_region(io->io.minimum, io->io.address_length,
2139                                         "Sony Programable I/O Device")) {
2140                         dprintk("I/O port: 0x%.4x (0x%.4x) + 0x%.2x\n",
2141                                         io->io.minimum, io->io.maximum,
2142                                         io->io.address_length);
2143                         spic_dev.cur_ioport = io;
2144                         break;
2145                 }
2146         }
2147         if (!spic_dev.cur_ioport) {
2148                 printk(KERN_ERR DRV_PFX "Failed to request_region.\n");
2149                 result = -ENODEV;
2150                 goto err_remove_input;
2151         }
2152
2153         /* request IRQ */
2154         list_for_each_entry(irq, &spic_dev.interrupts, list) {
2155                 if (!request_irq(irq->irq.interrupts[0], sony_pic_irq,
2156                                         IRQF_SHARED, "sony-laptop", &spic_dev)) {
2157                         dprintk("IRQ: %d - triggering: %d - "
2158                                         "polarity: %d - shr: %d\n",
2159                                         irq->irq.interrupts[0],
2160                                         irq->irq.triggering,
2161                                         irq->irq.polarity,
2162                                         irq->irq.sharable);
2163                         spic_dev.cur_irq = irq;
2164                         break;
2165                 }
2166         }
2167         if (!spic_dev.cur_irq) {
2168                 printk(KERN_ERR DRV_PFX "Failed to request_irq.\n");
2169                 result = -ENODEV;
2170                 goto err_release_region;
2171         }
2172
2173         /* set resource status _SRS */
2174         result = sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
2175         if (result) {
2176                 printk(KERN_ERR DRV_PFX "Couldn't enable device.\n");
2177                 goto err_free_irq;
2178         }
2179
2180         spic_dev.bluetooth_power = -1;
2181         /* create device attributes */
2182         result = sony_pf_add();
2183         if (result)
2184                 goto err_disable_device;
2185
2186         result = sysfs_create_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
2187         if (result)
2188                 goto err_remove_pf;
2189
2190         if (sonypi_compat_init())
2191                 goto err_remove_pf;
2192
2193         return 0;
2194
2195 err_remove_pf:
2196         sony_pf_remove();
2197
2198 err_disable_device:
2199         sony_pic_disable(device);
2200
2201 err_free_irq:
2202         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
2203
2204 err_release_region:
2205         release_region(spic_dev.cur_ioport->io.minimum,
2206                         spic_dev.cur_ioport->io.address_length);
2207
2208 err_remove_input:
2209         sony_laptop_remove_input();
2210
2211 err_free_resources:
2212         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
2213                 list_del(&io->list);
2214                 kfree(io);
2215         }
2216         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
2217                 list_del(&irq->list);
2218                 kfree(irq);
2219         }
2220         spic_dev.cur_ioport = NULL;
2221         spic_dev.cur_irq = NULL;
2222
2223         return result;
2224 }
2225
2226 static int sony_pic_suspend(struct acpi_device *device, pm_message_t state)
2227 {
2228         if (sony_pic_disable(device))
2229                 return -ENXIO;
2230         return 0;
2231 }
2232
2233 static int sony_pic_resume(struct acpi_device *device)
2234 {
2235         sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
2236         return 0;
2237 }
2238
2239 static struct acpi_driver sony_pic_driver = {
2240         .name = SONY_PIC_DRIVER_NAME,
2241         .class = SONY_PIC_CLASS,
2242         .ids = SONY_PIC_HID,
2243         .owner = THIS_MODULE,
2244         .ops = {
2245                 .add = sony_pic_add,
2246                 .remove = sony_pic_remove,
2247                 .suspend = sony_pic_suspend,
2248                 .resume = sony_pic_resume,
2249                 },
2250 };
2251
2252 static struct dmi_system_id __initdata sonypi_dmi_table[] = {
2253         {
2254                 .ident = "Sony Vaio",
2255                 .matches = {
2256                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
2257                         DMI_MATCH(DMI_PRODUCT_NAME, "PCG-"),
2258                 },
2259         },
2260         {
2261                 .ident = "Sony Vaio",
2262                 .matches = {
2263                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
2264                         DMI_MATCH(DMI_PRODUCT_NAME, "VGN-"),
2265                 },
2266         },
2267         { }
2268 };
2269
2270 static int __init sony_laptop_init(void)
2271 {
2272         int result;
2273
2274         if (!no_spic && dmi_check_system(sonypi_dmi_table)) {
2275                 result = acpi_bus_register_driver(&sony_pic_driver);
2276                 if (result) {
2277                         printk(KERN_ERR DRV_PFX
2278                                         "Unable to register SPIC driver.");
2279                         goto out;
2280                 }
2281         }
2282
2283         result = acpi_bus_register_driver(&sony_nc_driver);
2284         if (result) {
2285                 printk(KERN_ERR DRV_PFX "Unable to register SNC driver.");
2286                 goto out_unregister_pic;
2287         }
2288
2289         return 0;
2290
2291 out_unregister_pic:
2292         if (!no_spic)
2293                 acpi_bus_unregister_driver(&sony_pic_driver);
2294 out:
2295         return result;
2296 }
2297
2298 static void __exit sony_laptop_exit(void)
2299 {
2300         acpi_bus_unregister_driver(&sony_nc_driver);
2301         if (!no_spic)
2302                 acpi_bus_unregister_driver(&sony_pic_driver);
2303 }
2304
2305 module_init(sony_laptop_init);
2306 module_exit(sony_laptop_exit);