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
 146  * and input layer indexes in the keymap
 147  */
 148 static int sony_laptop_input_index[] = {
 149         -1,     /* no event */
 150         -1,     /* SONYPI_EVENT_JOGDIAL_DOWN */
 151         -1,     /* SONYPI_EVENT_JOGDIAL_UP */
 152         -1,     /* SONYPI_EVENT_JOGDIAL_DOWN_PRESSED */
 153         -1,     /* SONYPI_EVENT_JOGDIAL_UP_PRESSED */
 154         -1,     /* SONYPI_EVENT_JOGDIAL_PRESSED */
 155         -1,     /* SONYPI_EVENT_JOGDIAL_RELEASED */
 156          0,     /* SONYPI_EVENT_CAPTURE_PRESSED */
 157          1,     /* SONYPI_EVENT_CAPTURE_RELEASED */
 158          2,     /* SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
 159          3,     /* SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
 160          4,     /* SONYPI_EVENT_FNKEY_ESC */
 161          5,     /* SONYPI_EVENT_FNKEY_F1 */
 162          6,     /* SONYPI_EVENT_FNKEY_F2 */
 163          7,     /* SONYPI_EVENT_FNKEY_F3 */
 164          8,     /* SONYPI_EVENT_FNKEY_F4 */
 165          9,     /* SONYPI_EVENT_FNKEY_F5 */
 166         10,     /* SONYPI_EVENT_FNKEY_F6 */
 167         11,     /* SONYPI_EVENT_FNKEY_F7 */
 168         12,     /* SONYPI_EVENT_FNKEY_F8 */
 169         13,     /* SONYPI_EVENT_FNKEY_F9 */
 170         14,     /* SONYPI_EVENT_FNKEY_F10 */
 171         15,     /* SONYPI_EVENT_FNKEY_F11 */
 172         16,     /* SONYPI_EVENT_FNKEY_F12 */
 173         17,     /* SONYPI_EVENT_FNKEY_1 */
 174         18,     /* SONYPI_EVENT_FNKEY_2 */
 175         19,     /* SONYPI_EVENT_FNKEY_D */
 176         20,     /* SONYPI_EVENT_FNKEY_E */
 177         21,     /* SONYPI_EVENT_FNKEY_F */
 178         22,     /* SONYPI_EVENT_FNKEY_S */
 179         23,     /* SONYPI_EVENT_FNKEY_B */
 180         24,     /* SONYPI_EVENT_BLUETOOTH_PRESSED */
 181         25,     /* SONYPI_EVENT_PKEY_P1 */
 182         26,     /* SONYPI_EVENT_PKEY_P2 */
 183         27,     /* SONYPI_EVENT_PKEY_P3 */
 184         28,     /* SONYPI_EVENT_BACK_PRESSED */
 185         -1,     /* SONYPI_EVENT_LID_CLOSED */
 186         -1,     /* SONYPI_EVENT_LID_OPENED */
 187         29,     /* SONYPI_EVENT_BLUETOOTH_ON */
 188         30,     /* SONYPI_EVENT_BLUETOOTH_OFF */
 189         31,     /* SONYPI_EVENT_HELP_PRESSED */
 190         32,     /* SONYPI_EVENT_FNKEY_ONLY */
 191         33,     /* SONYPI_EVENT_JOGDIAL_FAST_DOWN */
 192         34,     /* SONYPI_EVENT_JOGDIAL_FAST_UP */
 193         35,     /* SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
 194         36,     /* SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
 195         37,     /* SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
 196         38,     /* SONYPI_EVENT_JOGDIAL_VFAST_UP */
 197         39,     /* SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
 198         40,     /* SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
 199         41,     /* SONYPI_EVENT_ZOOM_PRESSED */
 200         42,     /* SONYPI_EVENT_THUMBPHRASE_PRESSED */
 201         43,     /* SONYPI_EVENT_MEYE_FACE */
 202         44,     /* SONYPI_EVENT_MEYE_OPPOSITE */
 203         45,     /* SONYPI_EVENT_MEMORYSTICK_INSERT */
 204         46,     /* SONYPI_EVENT_MEMORYSTICK_EJECT */
 205         -1,     /* SONYPI_EVENT_ANYBUTTON_RELEASED */
 206         -1,     /* SONYPI_EVENT_BATTERY_INSERT */
 207         -1,     /* SONYPI_EVENT_BATTERY_REMOVE */
 208         -1,     /* SONYPI_EVENT_FNKEY_RELEASED */
 209         47,     /* SONYPI_EVENT_WIRELESS_ON */
 210         48,     /* SONYPI_EVENT_WIRELESS_OFF */
 211 };
 212
 213 static int sony_laptop_input_keycode_map[] = {
 214         KEY_CAMERA,     /*  0 SONYPI_EVENT_CAPTURE_PRESSED */
 215         KEY_RESERVED,   /*  1 SONYPI_EVENT_CAPTURE_RELEASED */
 216         KEY_RESERVED,   /*  2 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
 217         KEY_RESERVED,   /*  3 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
 218         KEY_FN_ESC,     /*  4 SONYPI_EVENT_FNKEY_ESC */
 219         KEY_FN_F1,      /*  5 SONYPI_EVENT_FNKEY_F1 */
 220         KEY_FN_F2,      /*  6 SONYPI_EVENT_FNKEY_F2 */
 221         KEY_FN_F3,      /*  7 SONYPI_EVENT_FNKEY_F3 */
 222         KEY_FN_F4,      /*  8 SONYPI_EVENT_FNKEY_F4 */
 223         KEY_FN_F5,      /*  9 SONYPI_EVENT_FNKEY_F5 */
 224         KEY_FN_F6,      /* 10 SONYPI_EVENT_FNKEY_F6 */
 225         KEY_FN_F7,      /* 11 SONYPI_EVENT_FNKEY_F7 */
 226         KEY_FN_F8,      /* 12 SONYPI_EVENT_FNKEY_F8 */
 227         KEY_FN_F9,      /* 13 SONYPI_EVENT_FNKEY_F9 */
 228         KEY_FN_F10,     /* 14 SONYPI_EVENT_FNKEY_F10 */
 229         KEY_FN_F11,     /* 15 SONYPI_EVENT_FNKEY_F11 */
 230         KEY_FN_F12,     /* 16 SONYPI_EVENT_FNKEY_F12 */
 231         KEY_FN_F1,      /* 17 SONYPI_EVENT_FNKEY_1 */
 232         KEY_FN_F2,      /* 18 SONYPI_EVENT_FNKEY_2 */
 233         KEY_FN_D,       /* 19 SONYPI_EVENT_FNKEY_D */
 234         KEY_FN_E,       /* 20 SONYPI_EVENT_FNKEY_E */
 235         KEY_FN_F,       /* 21 SONYPI_EVENT_FNKEY_F */
 236         KEY_FN_S,       /* 22 SONYPI_EVENT_FNKEY_S */
 237         KEY_FN_B,       /* 23 SONYPI_EVENT_FNKEY_B */
 238         KEY_BLUETOOTH,  /* 24 SONYPI_EVENT_BLUETOOTH_PRESSED */
 239         KEY_PROG1,      /* 25 SONYPI_EVENT_PKEY_P1 */
 240         KEY_PROG2,      /* 26 SONYPI_EVENT_PKEY_P2 */
 241         KEY_PROG3,      /* 27 SONYPI_EVENT_PKEY_P3 */
 242         KEY_BACK,       /* 28 SONYPI_EVENT_BACK_PRESSED */
 243         KEY_BLUETOOTH,  /* 29 SONYPI_EVENT_BLUETOOTH_ON */
 244         KEY_BLUETOOTH,  /* 30 SONYPI_EVENT_BLUETOOTH_OFF */
 245         KEY_HELP,       /* 31 SONYPI_EVENT_HELP_PRESSED */
 246         KEY_FN,         /* 32 SONYPI_EVENT_FNKEY_ONLY */
 247         KEY_RESERVED,   /* 33 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
 248         KEY_RESERVED,   /* 34 SONYPI_EVENT_JOGDIAL_FAST_UP */
 249         KEY_RESERVED,   /* 35 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
 250         KEY_RESERVED,   /* 36 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
 251         KEY_RESERVED,   /* 37 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
 252         KEY_RESERVED,   /* 38 SONYPI_EVENT_JOGDIAL_VFAST_UP */
 253         KEY_RESERVED,   /* 39 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
 254         KEY_RESERVED,   /* 40 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
 255         KEY_ZOOM,       /* 41 SONYPI_EVENT_ZOOM_PRESSED */
 256         BTN_THUMB,      /* 42 SONYPI_EVENT_THUMBPHRASE_PRESSED */
 257         KEY_RESERVED,   /* 43 SONYPI_EVENT_MEYE_FACE */
 258         KEY_RESERVED,   /* 44 SONYPI_EVENT_MEYE_OPPOSITE */
 259         KEY_RESERVED,   /* 45 SONYPI_EVENT_MEMORYSTICK_INSERT */
 260         KEY_RESERVED,   /* 46 SONYPI_EVENT_MEMORYSTICK_EJECT */
 261         KEY_WLAN,       /* 47 SONYPI_EVENT_WIRELESS_ON */
 262         KEY_WLAN,       /* 48 SONYPI_EVENT_WIRELESS_OFF */
 263 };
 264
 265 /* release buttons after a short delay if pressed */
 266 static void do_sony_laptop_release_key(struct work_struct *work)
 267 {
 268         struct sony_laptop_keypress kp;
 269
 270         while (kfifo_get(sony_laptop_input.fifo, (unsigned char *)&kp,
 271                          sizeof(kp)) == sizeof(kp)) {
 272                 msleep(10);
 273                 input_report_key(kp.dev, kp.key, 0);
 274                 input_sync(kp.dev);
 275         }
 276 }
 277 static DECLARE_WORK(sony_laptop_release_key_work,
 278                 do_sony_laptop_release_key);
 279
 280 /* forward event to the input subsytem */
 281 static void sony_laptop_report_input_event(u8 event)
 282 {
 283         struct input_dev *jog_dev = sony_laptop_input.jog_dev;
 284         struct input_dev *key_dev = sony_laptop_input.key_dev;
 285         struct sony_laptop_keypress kp = { NULL };
 286
 287         if (event == SONYPI_EVENT_FNKEY_RELEASED) {
 288                 /* Nothing, not all VAIOs generate this event */
 289                 return;
 290         }
 291
 292         /* report events */
 293         switch (event) {
 294         /* jog_dev events */
 295         case SONYPI_EVENT_JOGDIAL_UP:
 296         case SONYPI_EVENT_JOGDIAL_UP_PRESSED:
 297                 input_report_rel(jog_dev, REL_WHEEL, 1);
 298                 input_sync(jog_dev);
 299                 return;
 300
 301         case SONYPI_EVENT_JOGDIAL_DOWN:
 302         case SONYPI_EVENT_JOGDIAL_DOWN_PRESSED:
 303                 input_report_rel(jog_dev, REL_WHEEL, -1);
 304                 input_sync(jog_dev);
 305                 return;
 306
 307         /* key_dev events */
 308         case SONYPI_EVENT_JOGDIAL_PRESSED:
 309                 kp.key = BTN_MIDDLE;
 310                 kp.dev = jog_dev;
 311                 break;
 312
 313         default:
 314                 if (event > ARRAY_SIZE (sony_laptop_input_keycode_map)) {
 315                         dprintk("sony_laptop_report_input_event, event not known: %d\n", event);
 316                         break;
 317                 }
 318                 if (sony_laptop_input_index[event] != -1) {
 319                         kp.key = sony_laptop_input_keycode_map[sony_laptop_input_index[event]];
 320                         if (kp.key != KEY_UNKNOWN)
 321                                 kp.dev = key_dev;
 322                 }
 323                 break;
 324         }
 325
 326         if (kp.dev) {
 327                 input_report_key(kp.dev, kp.key, 1);
 328                 /* we emit the scancode so we can always remap the key */
 329                 input_event(kp.dev, EV_MSC, MSC_SCAN, event);
 330                 input_sync(kp.dev);
 331                 kfifo_put(sony_laptop_input.fifo,
 332                           (unsigned char *)&kp, sizeof(kp));
 333
 334                 if (!work_pending(&sony_laptop_release_key_work))
 335                         queue_work(sony_laptop_input.wq,
 336                                         &sony_laptop_release_key_work);
 337         } else
 338                 dprintk("unknown input event %.2x\n", event);
 339 }
 340
 341 static int sony_laptop_setup_input(void)
 342 {
 343         struct input_dev *jog_dev;
 344         struct input_dev *key_dev;
 345         int i;
 346         int error;
 347
 348         /* don't run again if already initialized */
 349         if (atomic_add_return(1, &sony_laptop_input.users) > 1)
 350                 return 0;
 351
 352         /* kfifo */
 353         spin_lock_init(&sony_laptop_input.fifo_lock);
 354         sony_laptop_input.fifo =
 355                 kfifo_alloc(SONY_LAPTOP_BUF_SIZE, GFP_KERNEL,
 356                             &sony_laptop_input.fifo_lock);
 357         if (IS_ERR(sony_laptop_input.fifo)) {
 358                 printk(KERN_ERR DRV_PFX "kfifo_alloc failed\n");
 359                 error = PTR_ERR(sony_laptop_input.fifo);
 360                 goto err_dec_users;
 361         }
 362
 363         /* init workqueue */
 364         sony_laptop_input.wq = create_singlethread_workqueue("sony-laptop");
 365         if (!sony_laptop_input.wq) {
 366                 printk(KERN_ERR DRV_PFX
 367                                 "Unabe to create workqueue.\n");
 368                 error = -ENXIO;
 369                 goto err_free_kfifo;
 370         }
 371
 372         /* input keys */
 373         key_dev = input_allocate_device();
 374         if (!key_dev) {
 375                 error = -ENOMEM;
 376                 goto err_destroy_wq;
 377         }
 378
 379         key_dev->name = "Sony Vaio Keys";
 380         key_dev->id.bustype = BUS_ISA;
 381         key_dev->id.vendor = PCI_VENDOR_ID_SONY;
 382
 383         /* Initialize the Input Drivers: special keys */
 384         set_bit(EV_KEY, key_dev->evbit);
 385         set_bit(EV_MSC, key_dev->evbit);
 386         set_bit(MSC_SCAN, key_dev->mscbit);
 387         key_dev->keycodesize = sizeof(sony_laptop_input_keycode_map[0]);
 388         key_dev->keycodemax = ARRAY_SIZE(sony_laptop_input_keycode_map);
 389         key_dev->keycode = &sony_laptop_input_keycode_map;
 390         for (i = 0; i < ARRAY_SIZE(sony_laptop_input_keycode_map); i++) {
 391                 if (sony_laptop_input_keycode_map[i] != KEY_RESERVED) {
 392                         set_bit(sony_laptop_input_keycode_map[i],
 393                                 key_dev->keybit);
 394                 }
 395         }
 396
 397         error = input_register_device(key_dev);
 398         if (error)
 399                 goto err_free_keydev;
 400
 401         sony_laptop_input.key_dev = key_dev;
 402
 403         /* jogdial */
 404         jog_dev = input_allocate_device();
 405         if (!jog_dev) {
 406                 error = -ENOMEM;
 407                 goto err_unregister_keydev;
 408         }
 409
 410         jog_dev->name = "Sony Vaio Jogdial";
 411         jog_dev->id.bustype = BUS_ISA;
 412         jog_dev->id.vendor = PCI_VENDOR_ID_SONY;
 413
 414         jog_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REL);
 415         jog_dev->keybit[LONG(BTN_MOUSE)] = BIT(BTN_MIDDLE);
 416         jog_dev->relbit[0] = BIT(REL_WHEEL);
 417
 418         error = input_register_device(jog_dev);
 419         if (error)
 420                 goto err_free_jogdev;
 421
 422         sony_laptop_input.jog_dev = jog_dev;
 423
 424         return 0;
 425
 426 err_free_jogdev:
 427         input_free_device(jog_dev);
 428
 429 err_unregister_keydev:
 430         input_unregister_device(key_dev);
 431         /* to avoid kref underflow below at input_free_device */
 432         key_dev = NULL;
 433
 434 err_free_keydev:
 435         input_free_device(key_dev);
 436
 437 err_destroy_wq:
 438         destroy_workqueue(sony_laptop_input.wq);
 439
 440 err_free_kfifo:
 441         kfifo_free(sony_laptop_input.fifo);
 442
 443 err_dec_users:
 444         atomic_dec(&sony_laptop_input.users);
 445         return error;
 446 }
 447
 448 static void sony_laptop_remove_input(void)
 449 {
 450         /* cleanup only after the last user has gone */
 451         if (!atomic_dec_and_test(&sony_laptop_input.users))
 452                 return;
 453
 454         /* flush workqueue first */
 455         flush_workqueue(sony_laptop_input.wq);
 456
 457         /* destroy input devs */
 458         input_unregister_device(sony_laptop_input.key_dev);
 459         sony_laptop_input.key_dev = NULL;
 460
 461         if (sony_laptop_input.jog_dev) {
 462                 input_unregister_device(sony_laptop_input.jog_dev);
 463                 sony_laptop_input.jog_dev = NULL;
 464         }
 465
 466         destroy_workqueue(sony_laptop_input.wq);
 467         kfifo_free(sony_laptop_input.fifo);
 468 }
 469
 470 /*********** Platform Device ***********/
 471
 472 static atomic_t sony_pf_users = ATOMIC_INIT(0);
 473 static struct platform_driver sony_pf_driver = {
 474         .driver = {
 475                    .name = "sony-laptop",
 476                    .owner = THIS_MODULE,
 477                    }
 478 };
 479 static struct platform_device *sony_pf_device;
 480
 481 static int sony_pf_add(void)
 482 {
 483         int ret = 0;
 484
 485         /* don't run again if already initialized */
 486         if (atomic_add_return(1, &sony_pf_users) > 1)
 487                 return 0;
 488
 489         ret = platform_driver_register(&sony_pf_driver);
 490         if (ret)
 491                 goto out;
 492
 493         sony_pf_device = platform_device_alloc("sony-laptop", -1);
 494         if (!sony_pf_device) {
 495                 ret = -ENOMEM;
 496                 goto out_platform_registered;
 497         }
 498
 499         ret = platform_device_add(sony_pf_device);
 500         if (ret)
 501                 goto out_platform_alloced;
 502
 503         return 0;
 504
 505       out_platform_alloced:
 506         platform_device_put(sony_pf_device);
 507         sony_pf_device = NULL;
 508       out_platform_registered:
 509         platform_driver_unregister(&sony_pf_driver);
 510       out:
 511         atomic_dec(&sony_pf_users);
 512         return ret;
 513 }
 514
 515 static void sony_pf_remove(void)
 516 {
 517         /* deregister only after the last user has gone */
 518         if (!atomic_dec_and_test(&sony_pf_users))
 519                 return;
 520
 521         platform_device_del(sony_pf_device);
 522         platform_device_put(sony_pf_device);
 523         platform_driver_unregister(&sony_pf_driver);
 524 }
 525
 526 /*********** SNC (SNY5001) Device ***********/
 527
 528 /* the device uses 1-based values, while the backlight subsystem uses
 529    0-based values */
 530 #define SONY_MAX_BRIGHTNESS     8
 531
 532 #define SNC_VALIDATE_IN         0
 533 #define SNC_VALIDATE_OUT        1
 534
 535 static ssize_t sony_nc_sysfs_show(struct device *, struct device_attribute *,
 536                               char *);
 537 static ssize_t sony_nc_sysfs_store(struct device *, struct device_attribute *,
 538                                const char *, size_t);
 539 static int boolean_validate(const int, const int);
 540 static int brightness_default_validate(const int, const int);
 541
 542 struct sony_nc_value {
 543         char *name;             /* name of the entry */
 544         char **acpiget;         /* names of the ACPI get function */
 545         char **acpiset;         /* names of the ACPI set function */
 546         int (*validate)(const int, const int);  /* input/output validation */
 547         int value;              /* current setting */
 548         int valid;              /* Has ever been set */
 549         int debug;              /* active only in debug mode ? */
 550         struct device_attribute devattr;        /* sysfs atribute */
 551 };
 552
 553 #define SNC_HANDLE_NAMES(_name, _values...) \
 554         static char *snc_##_name[] = { _values, NULL }
 555
 556 #define SNC_HANDLE(_name, _getters, _setters, _validate, _debug) \
 557         { \
 558                 .name           = __stringify(_name), \
 559                 .acpiget        = _getters, \
 560                 .acpiset        = _setters, \
 561                 .validate       = _validate, \
 562                 .debug          = _debug, \
 563                 .devattr        = __ATTR(_name, 0, sony_nc_sysfs_show, sony_nc_sysfs_store), \
 564         }
 565
 566 #define SNC_HANDLE_NULL { .name = NULL }
 567
 568 SNC_HANDLE_NAMES(fnkey_get, "GHKE");
 569
 570 SNC_HANDLE_NAMES(brightness_def_get, "GPBR");
 571 SNC_HANDLE_NAMES(brightness_def_set, "SPBR");
 572
 573 SNC_HANDLE_NAMES(cdpower_get, "GCDP");
 574 SNC_HANDLE_NAMES(cdpower_set, "SCDP", "CDPW");
 575
 576 SNC_HANDLE_NAMES(audiopower_get, "GAZP");
 577 SNC_HANDLE_NAMES(audiopower_set, "AZPW");
 578
 579 SNC_HANDLE_NAMES(lanpower_get, "GLNP");
 580 SNC_HANDLE_NAMES(lanpower_set, "LNPW");
 581
 582 SNC_HANDLE_NAMES(lidstate_get, "GLID");
 583
 584 SNC_HANDLE_NAMES(indicatorlamp_get, "GILS");
 585 SNC_HANDLE_NAMES(indicatorlamp_set, "SILS");
 586
 587 SNC_HANDLE_NAMES(gainbass_get, "GMGB");
 588 SNC_HANDLE_NAMES(gainbass_set, "CMGB");
 589
 590 SNC_HANDLE_NAMES(PID_get, "GPID");
 591
 592 SNC_HANDLE_NAMES(CTR_get, "GCTR");
 593 SNC_HANDLE_NAMES(CTR_set, "SCTR");
 594
 595 SNC_HANDLE_NAMES(PCR_get, "GPCR");
 596 SNC_HANDLE_NAMES(PCR_set, "SPCR");
 597
 598 SNC_HANDLE_NAMES(CMI_get, "GCMI");
 599 SNC_HANDLE_NAMES(CMI_set, "SCMI");
 600
 601 static struct sony_nc_value sony_nc_values[] = {
 602         SNC_HANDLE(brightness_default, snc_brightness_def_get,
 603                         snc_brightness_def_set, brightness_default_validate, 0),
 604         SNC_HANDLE(fnkey, snc_fnkey_get, NULL, NULL, 0),
 605         SNC_HANDLE(cdpower, snc_cdpower_get, snc_cdpower_set, boolean_validate, 0),
 606         SNC_HANDLE(audiopower, snc_audiopower_get, snc_audiopower_set,
 607                         boolean_validate, 0),
 608         SNC_HANDLE(lanpower, snc_lanpower_get, snc_lanpower_set,
 609                         boolean_validate, 1),
 610         SNC_HANDLE(lidstate, snc_lidstate_get, NULL,
 611                         boolean_validate, 0),
 612         SNC_HANDLE(indicatorlamp, snc_indicatorlamp_get, snc_indicatorlamp_set,
 613                         boolean_validate, 0),
 614         SNC_HANDLE(gainbass, snc_gainbass_get, snc_gainbass_set,
 615                         boolean_validate, 0),
 616         /* unknown methods */
 617         SNC_HANDLE(PID, snc_PID_get, NULL, NULL, 1),
 618         SNC_HANDLE(CTR, snc_CTR_get, snc_CTR_set, NULL, 1),
 619         SNC_HANDLE(PCR, snc_PCR_get, snc_PCR_set, NULL, 1),
 620         SNC_HANDLE(CMI, snc_CMI_get, snc_CMI_set, NULL, 1),
 621         SNC_HANDLE_NULL
 622 };
 623
 624 static acpi_handle sony_nc_acpi_handle;
 625 static struct acpi_device *sony_nc_acpi_device = NULL;
 626
 627 /*
 628  * acpi_evaluate_object wrappers
 629  */
 630 static int acpi_callgetfunc(acpi_handle handle, char *name, int *result)
 631 {
 632         struct acpi_buffer output;
 633         union acpi_object out_obj;
 634         acpi_status status;
 635
 636         output.length = sizeof(out_obj);
 637         output.pointer = &out_obj;
 638
 639         status = acpi_evaluate_object(handle, name, NULL, &output);
 640         if ((status == AE_OK) && (out_obj.type == ACPI_TYPE_INTEGER)) {
 641                 *result = out_obj.integer.value;
 642                 return 0;
 643         }
 644
 645         printk(KERN_WARNING DRV_PFX "acpi_callreadfunc failed\n");
 646
 647         return -1;
 648 }
 649
 650 static int acpi_callsetfunc(acpi_handle handle, char *name, int value,
 651                             int *result)
 652 {
 653         struct acpi_object_list params;
 654         union acpi_object in_obj;
 655         struct acpi_buffer output;
 656         union acpi_object out_obj;
 657         acpi_status status;
 658
 659         params.count = 1;
 660         params.pointer = &in_obj;
 661         in_obj.type = ACPI_TYPE_INTEGER;
 662         in_obj.integer.value = value;
 663
 664         output.length = sizeof(out_obj);
 665         output.pointer = &out_obj;
 666
 667         status = acpi_evaluate_object(handle, name, &params, &output);
 668         if (status == AE_OK) {
 669                 if (result != NULL) {
 670                         if (out_obj.type != ACPI_TYPE_INTEGER) {
 671                                 printk(KERN_WARNING DRV_PFX "acpi_evaluate_object bad "
 672                                        "return type\n");
 673                                 return -1;
 674                         }
 675                         *result = out_obj.integer.value;
 676                 }
 677                 return 0;
 678         }
 679
 680         printk(KERN_WARNING DRV_PFX "acpi_evaluate_object failed\n");
 681
 682         return -1;
 683 }
 684
 685 /*
 686  * sony_nc_values input/output validate functions
 687  */
 688
 689 /* brightness_default_validate:
 690  *
 691  * manipulate input output values to keep consistency with the
 692  * backlight framework for which brightness values are 0-based.
 693  */
 694 static int brightness_default_validate(const int direction, const int value)
 695 {
 696         switch (direction) {
 697                 case SNC_VALIDATE_OUT:
 698                         return value - 1;
 699                 case SNC_VALIDATE_IN:
 700                         if (value >= 0 && value < SONY_MAX_BRIGHTNESS)
 701                                 return value + 1;
 702         }
 703         return -EINVAL;
 704 }
 705
 706 /* boolean_validate:
 707  *
 708  * on input validate boolean values 0/1, on output just pass the
 709  * received value.
 710  */
 711 static int boolean_validate(const int direction, const int value)
 712 {
 713         if (direction == SNC_VALIDATE_IN) {
 714                 if (value != 0 && value != 1)
 715                         return -EINVAL;
 716         }
 717         return value;
 718 }
 719
 720 /*
 721  * Sysfs show/store common to all sony_nc_values
 722  */
 723 static ssize_t sony_nc_sysfs_show(struct device *dev, struct device_attribute *attr,
 724                               char *buffer)
 725 {
 726         int value;
 727         struct sony_nc_value *item =
 728             container_of(attr, struct sony_nc_value, devattr);
 729
 730         if (!*item->acpiget)
 731                 return -EIO;
 732
 733         if (acpi_callgetfunc(sony_nc_acpi_handle, *item->acpiget, &value) < 0)
 734                 return -EIO;
 735
 736         if (item->validate)
 737                 value = item->validate(SNC_VALIDATE_OUT, value);
 738
 739         return snprintf(buffer, PAGE_SIZE, "%d\n", value);
 740 }
 741
 742 static ssize_t sony_nc_sysfs_store(struct device *dev,
 743                                struct device_attribute *attr,
 744                                const char *buffer, size_t count)
 745 {
 746         int value;
 747         struct sony_nc_value *item =
 748             container_of(attr, struct sony_nc_value, devattr);
 749
 750         if (!item->acpiset)
 751                 return -EIO;
 752
 753         if (count > 31)
 754                 return -EINVAL;
 755
 756         value = simple_strtoul(buffer, NULL, 10);
 757
 758         if (item->validate)
 759                 value = item->validate(SNC_VALIDATE_IN, value);
 760
 761         if (value < 0)
 762                 return value;
 763
 764         if (acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset, value, NULL) < 0)
 765                 return -EIO;
 766         item->value = value;
 767         item->valid = 1;
 768         return count;
 769 }
 770
 771
 772 /*
 773  * Backlight device
 774  */
 775 static int sony_backlight_update_status(struct backlight_device *bd)
 776 {
 777         return acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
 778                                 bd->props.brightness + 1, NULL);
 779 }
 780
 781 static int sony_backlight_get_brightness(struct backlight_device *bd)
 782 {
 783         int value;
 784
 785         if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value))
 786                 return 0;
 787         /* brightness levels are 1-based, while backlight ones are 0-based */
 788         return value - 1;
 789 }
 790
 791 static struct backlight_device *sony_backlight_device;
 792 static struct backlight_ops sony_backlight_ops = {
 793         .update_status = sony_backlight_update_status,
 794         .get_brightness = sony_backlight_get_brightness,
 795 };
 796
 797 /*
 798  * New SNC-only Vaios event mapping to driver known keys
 799  */
 800 struct sony_nc_event {
 801         u8      data;
 802         u8      event;
 803 };
 804
 805 static struct sony_nc_event *sony_nc_events;
 806
 807 /* Vaio C* --maybe also FE*, N* and AR* ?-- special init sequence
 808  * for Fn keys
 809  */
 810 static int sony_nc_C_enable(struct dmi_system_id *id)
 811 {
 812         int result = 0;
 813
 814         printk(KERN_NOTICE DRV_PFX "detected %s\n", id->ident);
 815
 816         sony_nc_events = id->driver_data;
 817
 818         if (acpi_callsetfunc(sony_nc_acpi_handle, "SN02", 0x4, &result) < 0
 819                         || acpi_callsetfunc(sony_nc_acpi_handle, "SN07", 0x2, &result) < 0
 820                         || acpi_callsetfunc(sony_nc_acpi_handle, "SN02", 0x10, &result) < 0
 821                         || acpi_callsetfunc(sony_nc_acpi_handle, "SN07", 0x0, &result) < 0
 822                         || acpi_callsetfunc(sony_nc_acpi_handle, "SN03", 0x2, &result) < 0
 823                         || acpi_callsetfunc(sony_nc_acpi_handle, "SN07", 0x101, &result) < 0) {
 824                 printk(KERN_WARNING DRV_PFX "failed to initialize SNC, some "
 825                                 "functionalities may be missing\n");
 826                 return 1;
 827         }
 828         return 0;
 829 }
 830
 831 static struct sony_nc_event sony_C_events[] = {
 832         { 0x81, SONYPI_EVENT_FNKEY_F1 },
 833         { 0x01, SONYPI_EVENT_FNKEY_RELEASED },
 834         { 0x85, SONYPI_EVENT_FNKEY_F5 },
 835         { 0x05, SONYPI_EVENT_FNKEY_RELEASED },
 836         { 0x86, SONYPI_EVENT_FNKEY_F6 },
 837         { 0x06, SONYPI_EVENT_FNKEY_RELEASED },
 838         { 0x87, SONYPI_EVENT_FNKEY_F7 },
 839         { 0x07, SONYPI_EVENT_FNKEY_RELEASED },
 840         { 0x8A, SONYPI_EVENT_FNKEY_F10 },
 841         { 0x0A, SONYPI_EVENT_FNKEY_RELEASED },
 842         { 0x8C, SONYPI_EVENT_FNKEY_F12 },
 843         { 0x0C, SONYPI_EVENT_FNKEY_RELEASED },
 844         { 0, 0 },
 845 };
 846
 847 /* SNC-only model map */
 848 struct dmi_system_id sony_nc_ids[] = {
 849                 {
 850                         .ident = "Sony Vaio C Series",
 851                         .callback = sony_nc_C_enable,
 852                         .driver_data = sony_C_events,
 853                         .matches = {
 854                                 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
 855                                 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-C"),
 856                         },
 857                 },
 858                 { }
 859 };
 860
 861 /*
 862  * ACPI callbacks
 863  */
 864 static void sony_acpi_notify(acpi_handle handle, u32 event, void *data)
 865 {
 866         struct sony_nc_event *evmap;
 867         u32 ev = event;
 868         int result;
 869
 870         if (ev == 0x92) {
 871                 /* read the key pressed from EC.GECR
 872                  * A call to SN07 with 0x0202 will do it as well respecting
 873                  * the current protocol on different OSes
 874                  *
 875                  * Note: the path for GECR may be
 876                  *   \_SB.PCI0.LPCB.EC (C, FE, AR, N and friends)
 877                  *   \_SB.PCI0.PIB.EC0 (VGN-FR notifications are sent directly, no GECR)
 878                  *
 879                  * TODO: we may want to do the same for the older GHKE -need
 880                  *       dmi list- so this snippet may become one more callback.
 881                  */
 882                 if (acpi_callsetfunc(handle, "SN07", 0x0202, &result) < 0)
 883                         dprintk("sony_acpi_notify, unable to decode event 0x%.2x\n", ev);
 884                 else
 885                         ev = result & 0xFF;
 886         }
 887
 888         if (sony_nc_events)
 889                 for (evmap = sony_nc_events; evmap->event; evmap++) {
 890                         if (evmap->data == ev) {
 891                                 ev = evmap->event;
 892                                 break;
 893                         }
 894                 }
 895
 896         dprintk("sony_acpi_notify, event: 0x%.2x\n", ev);
 897         sony_laptop_report_input_event(ev);
 898         acpi_bus_generate_event(sony_nc_acpi_device, 1, ev);
 899 }
 900
 901 static acpi_status sony_walk_callback(acpi_handle handle, u32 level,
 902                                       void *context, void **return_value)
 903 {
 904         struct acpi_namespace_node *node;
 905         union acpi_operand_object *operand;
 906
 907         node = (struct acpi_namespace_node *)handle;
 908         operand = (union acpi_operand_object *)node->object;
 909
 910         printk(KERN_WARNING DRV_PFX "method: name: %4.4s, args %X\n", node->name.ascii,
 911                (u32) operand->method.param_count);
 912
 913         return AE_OK;
 914 }
 915
 916 /*
 917  * ACPI device
 918  */
 919 static int sony_nc_resume(struct acpi_device *device)
 920 {
 921         struct sony_nc_value *item;
 922
 923         for (item = sony_nc_values; item->name; item++) {
 924                 int ret;
 925
 926                 if (!item->valid)
 927                         continue;
 928                 ret = acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset,
 929                                        item->value, NULL);
 930                 if (ret < 0) {
 931                         printk("%s: %d\n", __FUNCTION__, ret);
 932                         break;
 933                 }
 934         }
 935
 936         /* re-initialize models with specific requirements */
 937         dmi_check_system(sony_nc_ids);
 938
 939         return 0;
 940 }
 941
 942 static int sony_nc_add(struct acpi_device *device)
 943 {
 944         acpi_status status;
 945         int result = 0;
 946         acpi_handle handle;
 947         struct sony_nc_value *item;
 948
 949         printk(KERN_INFO DRV_PFX "%s v%s.\n",
 950                 SONY_NC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
 951
 952         sony_nc_acpi_device = device;
 953         strcpy(acpi_device_class(device), "sony/hotkey");
 954
 955         sony_nc_acpi_handle = device->handle;
 956
 957         /* read device status */
 958         result = acpi_bus_get_status(device);
 959         /* bail IFF the above call was successful and the device is not present */
 960         if (!result && !device->status.present) {
 961                 dprintk("Device not present\n");
 962                 result = -ENODEV;
 963                 goto outwalk;
 964         }
 965
 966         if (debug) {
 967                 status = acpi_walk_namespace(ACPI_TYPE_METHOD, sony_nc_acpi_handle,
 968                                              1, sony_walk_callback, NULL, NULL);
 969                 if (ACPI_FAILURE(status)) {
 970                         printk(KERN_WARNING DRV_PFX "unable to walk acpi resources\n");
 971                         result = -ENODEV;
 972                         goto outwalk;
 973                 }
 974         }
 975
 976         /* try to _INI the device if such method exists (ACPI spec 3.0-6.5.1
 977          * should be respected as we already checked for the device presence above */
 978         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, METHOD_NAME__INI, &handle))) {
 979                 dprintk("Invoking _INI\n");
 980                 if (ACPI_FAILURE(acpi_evaluate_object(sony_nc_acpi_handle, METHOD_NAME__INI,
 981                                                 NULL, NULL)))
 982                         dprintk("_INI Method failed\n");
 983         }
 984
 985         /* setup input devices and helper fifo */
 986         result = sony_laptop_setup_input();
 987         if (result) {
 988                 printk(KERN_ERR DRV_PFX
 989                                 "Unabe to create input devices.\n");
 990                 goto outwalk;
 991         }
 992
 993         status = acpi_install_notify_handler(sony_nc_acpi_handle,
 994                                              ACPI_DEVICE_NOTIFY,
 995                                              sony_acpi_notify, NULL);
 996         if (ACPI_FAILURE(status)) {
 997                 printk(KERN_WARNING DRV_PFX "unable to install notify handler (%u)\n", status);
 998                 result = -ENODEV;
 999                 goto outinput;
1000         }
1001
1002         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT", &handle))) {
1003                 sony_backlight_device = backlight_device_register("sony", NULL,
1004                                                                   NULL,
1005                                                                   &sony_backlight_ops);
1006
1007                 if (IS_ERR(sony_backlight_device)) {
1008                         printk(KERN_WARNING DRV_PFX "unable to register backlight device\n");
1009                         sony_backlight_device = NULL;
1010                 } else {
1011                         sony_backlight_device->props.brightness =
1012                             sony_backlight_get_brightness
1013                             (sony_backlight_device);
1014                         sony_backlight_device->props.max_brightness =
1015                             SONY_MAX_BRIGHTNESS - 1;
1016                 }
1017
1018         }
1019
1020         /* initialize models with specific requirements */
1021         dmi_check_system(sony_nc_ids);
1022
1023         result = sony_pf_add();
1024         if (result)
1025                 goto outbacklight;
1026
1027         /* create sony_pf sysfs attributes related to the SNC device */
1028         for (item = sony_nc_values; item->name; ++item) {
1029
1030                 if (!debug && item->debug)
1031                         continue;
1032
1033                 /* find the available acpiget as described in the DSDT */
1034                 for (; item->acpiget && *item->acpiget; ++item->acpiget) {
1035                         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
1036                                                          *item->acpiget,
1037                                                          &handle))) {
1038                                 dprintk("Found %s getter: %s\n",
1039                                                 item->name, *item->acpiget);
1040                                 item->devattr.attr.mode |= S_IRUGO;
1041                                 break;
1042                         }
1043                 }
1044
1045                 /* find the available acpiset as described in the DSDT */
1046                 for (; item->acpiset && *item->acpiset; ++item->acpiset) {
1047                         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
1048                                                          *item->acpiset,
1049                                                          &handle))) {
1050                                 dprintk("Found %s setter: %s\n",
1051                                                 item->name, *item->acpiset);
1052                                 item->devattr.attr.mode |= S_IWUSR;
1053                                 break;
1054                         }
1055                 }
1056
1057                 if (item->devattr.attr.mode != 0) {
1058                         result =
1059                             device_create_file(&sony_pf_device->dev,
1060                                                &item->devattr);
1061                         if (result)
1062                                 goto out_sysfs;
1063                 }
1064         }
1065
1066         return 0;
1067
1068       out_sysfs:
1069         for (item = sony_nc_values; item->name; ++item) {
1070                 device_remove_file(&sony_pf_device->dev, &item->devattr);
1071         }
1072         sony_pf_remove();
1073
1074       outbacklight:
1075         if (sony_backlight_device)
1076                 backlight_device_unregister(sony_backlight_device);
1077
1078         status = acpi_remove_notify_handler(sony_nc_acpi_handle,
1079                                             ACPI_DEVICE_NOTIFY,
1080                                             sony_acpi_notify);
1081         if (ACPI_FAILURE(status))
1082                 printk(KERN_WARNING DRV_PFX "unable to remove notify handler\n");
1083
1084       outinput:
1085         sony_laptop_remove_input();
1086
1087       outwalk:
1088         return result;
1089 }
1090
1091 static int sony_nc_remove(struct acpi_device *device, int type)
1092 {
1093         acpi_status status;
1094         struct sony_nc_value *item;
1095
1096         if (sony_backlight_device)
1097                 backlight_device_unregister(sony_backlight_device);
1098
1099         sony_nc_acpi_device = NULL;
1100
1101         status = acpi_remove_notify_handler(sony_nc_acpi_handle,
1102                                             ACPI_DEVICE_NOTIFY,
1103                                             sony_acpi_notify);
1104         if (ACPI_FAILURE(status))
1105                 printk(KERN_WARNING DRV_PFX "unable to remove notify handler\n");
1106
1107         for (item = sony_nc_values; item->name; ++item) {
1108                 device_remove_file(&sony_pf_device->dev, &item->devattr);
1109         }
1110
1111         sony_pf_remove();
1112         sony_laptop_remove_input();
1113         dprintk(SONY_NC_DRIVER_NAME " removed.\n");
1114
1115         return 0;
1116 }
1117
1118 static struct acpi_driver sony_nc_driver = {
1119         .name = SONY_NC_DRIVER_NAME,
1120         .class = SONY_NC_CLASS,
1121         .ids = SONY_NC_HID,
1122         .owner = THIS_MODULE,
1123         .ops = {
1124                 .add = sony_nc_add,
1125                 .remove = sony_nc_remove,
1126                 .resume = sony_nc_resume,
1127                 },
1128 };
1129
1130 /*********** SPIC (SNY6001) Device ***********/
1131
1132 #define SONYPI_DEVICE_TYPE1     0x00000001
1133 #define SONYPI_DEVICE_TYPE2     0x00000002
1134 #define SONYPI_DEVICE_TYPE3     0x00000004
1135
1136 #define SONY_PIC_EV_MASK        0xff
1137
1138 struct sony_pic_ioport {
1139         struct acpi_resource_io io;
1140         struct list_head        list;
1141 };
1142
1143 struct sony_pic_irq {
1144         struct acpi_resource_irq        irq;
1145         struct list_head                list;
1146 };
1147
1148 struct sony_pic_dev {
1149         int                     model;
1150         u8                      camera_power;
1151         u8                      bluetooth_power;
1152         u8                      wwan_power;
1153         struct acpi_device      *acpi_dev;
1154         struct sony_pic_irq     *cur_irq;
1155         struct sony_pic_ioport  *cur_ioport;
1156         struct list_head        interrupts;
1157         struct list_head        ioports;
1158         struct mutex            lock;
1159 };
1160
1161 static struct sony_pic_dev spic_dev = {
1162         .interrupts     = LIST_HEAD_INIT(spic_dev.interrupts),
1163         .ioports        = LIST_HEAD_INIT(spic_dev.ioports),
1164 };
1165
1166 /* Event masks */
1167 #define SONYPI_JOGGER_MASK                      0x00000001
1168 #define SONYPI_CAPTURE_MASK                     0x00000002
1169 #define SONYPI_FNKEY_MASK                       0x00000004
1170 #define SONYPI_BLUETOOTH_MASK                   0x00000008
1171 #define SONYPI_PKEY_MASK                        0x00000010
1172 #define SONYPI_BACK_MASK                        0x00000020
1173 #define SONYPI_HELP_MASK                        0x00000040
1174 #define SONYPI_LID_MASK                         0x00000080
1175 #define SONYPI_ZOOM_MASK                        0x00000100
1176 #define SONYPI_THUMBPHRASE_MASK                 0x00000200
1177 #define SONYPI_MEYE_MASK                        0x00000400
1178 #define SONYPI_MEMORYSTICK_MASK                 0x00000800
1179 #define SONYPI_BATTERY_MASK                     0x00001000
1180 #define SONYPI_WIRELESS_MASK                    0x00002000
1181
1182 struct sonypi_event {
1183         u8      data;
1184         u8      event;
1185 };
1186
1187 /* The set of possible button release events */
1188 static struct sonypi_event sonypi_releaseev[] = {
1189         { 0x00, SONYPI_EVENT_ANYBUTTON_RELEASED },
1190         { 0, 0 }
1191 };
1192
1193 /* The set of possible jogger events  */
1194 static struct sonypi_event sonypi_joggerev[] = {
1195         { 0x1f, SONYPI_EVENT_JOGDIAL_UP },
1196         { 0x01, SONYPI_EVENT_JOGDIAL_DOWN },
1197         { 0x5f, SONYPI_EVENT_JOGDIAL_UP_PRESSED },
1198         { 0x41, SONYPI_EVENT_JOGDIAL_DOWN_PRESSED },
1199         { 0x1e, SONYPI_EVENT_JOGDIAL_FAST_UP },
1200         { 0x02, SONYPI_EVENT_JOGDIAL_FAST_DOWN },
1201         { 0x5e, SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED },
1202         { 0x42, SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED },
1203         { 0x1d, SONYPI_EVENT_JOGDIAL_VFAST_UP },
1204         { 0x03, SONYPI_EVENT_JOGDIAL_VFAST_DOWN },
1205         { 0x5d, SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED },
1206         { 0x43, SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED },
1207         { 0x40, SONYPI_EVENT_JOGDIAL_PRESSED },
1208         { 0, 0 }
1209 };
1210
1211 /* The set of possible capture button events */
1212 static struct sonypi_event sonypi_captureev[] = {
1213         { 0x05, SONYPI_EVENT_CAPTURE_PARTIALPRESSED },
1214         { 0x07, SONYPI_EVENT_CAPTURE_PRESSED },
1215         { 0x01, SONYPI_EVENT_CAPTURE_PARTIALRELEASED },
1216         { 0, 0 }
1217 };
1218
1219 /* The set of possible fnkeys events */
1220 static struct sonypi_event sonypi_fnkeyev[] = {
1221         { 0x10, SONYPI_EVENT_FNKEY_ESC },
1222         { 0x11, SONYPI_EVENT_FNKEY_F1 },
1223         { 0x12, SONYPI_EVENT_FNKEY_F2 },
1224         { 0x13, SONYPI_EVENT_FNKEY_F3 },
1225         { 0x14, SONYPI_EVENT_FNKEY_F4 },
1226         { 0x15, SONYPI_EVENT_FNKEY_F5 },
1227         { 0x16, SONYPI_EVENT_FNKEY_F6 },
1228         { 0x17, SONYPI_EVENT_FNKEY_F7 },
1229         { 0x18, SONYPI_EVENT_FNKEY_F8 },
1230         { 0x19, SONYPI_EVENT_FNKEY_F9 },
1231         { 0x1a, SONYPI_EVENT_FNKEY_F10 },
1232         { 0x1b, SONYPI_EVENT_FNKEY_F11 },
1233         { 0x1c, SONYPI_EVENT_FNKEY_F12 },
1234         { 0x1f, SONYPI_EVENT_FNKEY_RELEASED },
1235         { 0x21, SONYPI_EVENT_FNKEY_1 },
1236         { 0x22, SONYPI_EVENT_FNKEY_2 },
1237         { 0x31, SONYPI_EVENT_FNKEY_D },
1238         { 0x32, SONYPI_EVENT_FNKEY_E },
1239         { 0x33, SONYPI_EVENT_FNKEY_F },
1240         { 0x34, SONYPI_EVENT_FNKEY_S },
1241         { 0x35, SONYPI_EVENT_FNKEY_B },
1242         { 0x36, SONYPI_EVENT_FNKEY_ONLY },
1243         { 0, 0 }
1244 };
1245
1246 /* The set of possible program key events */
1247 static struct sonypi_event sonypi_pkeyev[] = {
1248         { 0x01, SONYPI_EVENT_PKEY_P1 },
1249         { 0x02, SONYPI_EVENT_PKEY_P2 },
1250         { 0x04, SONYPI_EVENT_PKEY_P3 },
1251         { 0x5c, SONYPI_EVENT_PKEY_P1 },
1252         { 0, 0 }
1253 };
1254
1255 /* The set of possible bluetooth events */
1256 static struct sonypi_event sonypi_blueev[] = {
1257         { 0x55, SONYPI_EVENT_BLUETOOTH_PRESSED },
1258         { 0x59, SONYPI_EVENT_BLUETOOTH_ON },
1259         { 0x5a, SONYPI_EVENT_BLUETOOTH_OFF },
1260         { 0, 0 }
1261 };
1262
1263 /* The set of possible wireless events */
1264 static struct sonypi_event sonypi_wlessev[] = {
1265         { 0x59, SONYPI_EVENT_WIRELESS_ON },
1266         { 0x5a, SONYPI_EVENT_WIRELESS_OFF },
1267         { 0, 0 }
1268 };
1269
1270 /* The set of possible back button events */
1271 static struct sonypi_event sonypi_backev[] = {
1272         { 0x20, SONYPI_EVENT_BACK_PRESSED },
1273         { 0, 0 }
1274 };
1275
1276 /* The set of possible help button events */
1277 static struct sonypi_event sonypi_helpev[] = {
1278         { 0x3b, SONYPI_EVENT_HELP_PRESSED },
1279         { 0, 0 }
1280 };
1281
1282
1283 /* The set of possible lid events */
1284 static struct sonypi_event sonypi_lidev[] = {
1285         { 0x51, SONYPI_EVENT_LID_CLOSED },
1286         { 0x50, SONYPI_EVENT_LID_OPENED },
1287         { 0, 0 }
1288 };
1289
1290 /* The set of possible zoom events */
1291 static struct sonypi_event sonypi_zoomev[] = {
1292         { 0x39, SONYPI_EVENT_ZOOM_PRESSED },
1293         { 0, 0 }
1294 };
1295
1296 /* The set of possible thumbphrase events */
1297 static struct sonypi_event sonypi_thumbphraseev[] = {
1298         { 0x3a, SONYPI_EVENT_THUMBPHRASE_PRESSED },
1299         { 0, 0 }
1300 };
1301
1302 /* The set of possible motioneye camera events */
1303 static struct sonypi_event sonypi_meyeev[] = {
1304         { 0x00, SONYPI_EVENT_MEYE_FACE },
1305         { 0x01, SONYPI_EVENT_MEYE_OPPOSITE },
1306         { 0, 0 }
1307 };
1308
1309 /* The set of possible memorystick events */
1310 static struct sonypi_event sonypi_memorystickev[] = {
1311         { 0x53, SONYPI_EVENT_MEMORYSTICK_INSERT },
1312         { 0x54, SONYPI_EVENT_MEMORYSTICK_EJECT },
1313         { 0, 0 }
1314 };
1315
1316 /* The set of possible battery events */
1317 static struct sonypi_event sonypi_batteryev[] = {
1318         { 0x20, SONYPI_EVENT_BATTERY_INSERT },
1319         { 0x30, SONYPI_EVENT_BATTERY_REMOVE },
1320         { 0, 0 }
1321 };
1322
1323 static struct sonypi_eventtypes {
1324         int                     model;
1325         u8                      data;
1326         unsigned long           mask;
1327         struct sonypi_event *   events;
1328 } sony_pic_eventtypes[] = {
1329         { SONYPI_DEVICE_TYPE1, 0, 0xffffffff, sonypi_releaseev },
1330         { SONYPI_DEVICE_TYPE1, 0x70, SONYPI_MEYE_MASK, sonypi_meyeev },
1331         { SONYPI_DEVICE_TYPE1, 0x30, SONYPI_LID_MASK, sonypi_lidev },
1332         { SONYPI_DEVICE_TYPE1, 0x60, SONYPI_CAPTURE_MASK, sonypi_captureev },
1333         { SONYPI_DEVICE_TYPE1, 0x10, SONYPI_JOGGER_MASK, sonypi_joggerev },
1334         { SONYPI_DEVICE_TYPE1, 0x20, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1335         { SONYPI_DEVICE_TYPE1, 0x30, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
1336         { SONYPI_DEVICE_TYPE1, 0x40, SONYPI_PKEY_MASK, sonypi_pkeyev },
1337         { SONYPI_DEVICE_TYPE1, 0x30, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1338         { SONYPI_DEVICE_TYPE1, 0x40, SONYPI_BATTERY_MASK, sonypi_batteryev },
1339
1340         { SONYPI_DEVICE_TYPE2, 0, 0xffffffff, sonypi_releaseev },
1341         { SONYPI_DEVICE_TYPE2, 0x38, SONYPI_LID_MASK, sonypi_lidev },
1342         { SONYPI_DEVICE_TYPE2, 0x11, SONYPI_JOGGER_MASK, sonypi_joggerev },
1343         { SONYPI_DEVICE_TYPE2, 0x61, SONYPI_CAPTURE_MASK, sonypi_captureev },
1344         { SONYPI_DEVICE_TYPE2, 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1345         { SONYPI_DEVICE_TYPE2, 0x31, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
1346         { SONYPI_DEVICE_TYPE2, 0x08, SONYPI_PKEY_MASK, sonypi_pkeyev },
1347         { SONYPI_DEVICE_TYPE2, 0x11, SONYPI_BACK_MASK, sonypi_backev },
1348         { SONYPI_DEVICE_TYPE2, 0x21, SONYPI_HELP_MASK, sonypi_helpev },
1349         { SONYPI_DEVICE_TYPE2, 0x21, SONYPI_ZOOM_MASK, sonypi_zoomev },
1350         { SONYPI_DEVICE_TYPE2, 0x20, SONYPI_THUMBPHRASE_MASK, sonypi_thumbphraseev },
1351         { SONYPI_DEVICE_TYPE2, 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1352         { SONYPI_DEVICE_TYPE2, 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
1353         { SONYPI_DEVICE_TYPE2, 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
1354
1355         { SONYPI_DEVICE_TYPE3, 0, 0xffffffff, sonypi_releaseev },
1356         { SONYPI_DEVICE_TYPE3, 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1357         { SONYPI_DEVICE_TYPE3, 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
1358         { SONYPI_DEVICE_TYPE3, 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1359         { SONYPI_DEVICE_TYPE3, 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
1360         { SONYPI_DEVICE_TYPE3, 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
1361         { 0 }
1362 };
1363
1364 static int sony_pic_detect_device_type(void)
1365 {
1366         struct pci_dev *pcidev;
1367         int model = 0;
1368
1369         if ((pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1370                                      PCI_DEVICE_ID_INTEL_82371AB_3, NULL)))
1371                 model = SONYPI_DEVICE_TYPE1;
1372
1373         else if ((pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1374                                           PCI_DEVICE_ID_INTEL_ICH6_1, NULL)))
1375                 model = SONYPI_DEVICE_TYPE3;
1376
1377         else if ((pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1378                                           PCI_DEVICE_ID_INTEL_ICH7_1, NULL)))
1379                 model = SONYPI_DEVICE_TYPE3;
1380
1381         else
1382                 model = SONYPI_DEVICE_TYPE2;
1383
1384         if (pcidev)
1385                 pci_dev_put(pcidev);
1386
1387         printk(KERN_INFO DRV_PFX "detected Type%d model\n",
1388                         model == SONYPI_DEVICE_TYPE1 ? 1 :
1389                         model == SONYPI_DEVICE_TYPE2 ? 2 : 3);
1390         return model;
1391 }
1392
1393 #define ITERATIONS_LONG         10000
1394 #define ITERATIONS_SHORT        10
1395 #define wait_on_command(command, iterations) {                          \
1396         unsigned int n = iterations;                                    \
1397         while (--n && (command))                                        \
1398                 udelay(1);                                              \
1399         if (!n)                                                         \
1400                 dprintk("command failed at %s : %s (line %d)\n",        \
1401                                 __FILE__, __FUNCTION__, __LINE__);      \
1402 }
1403
1404 static u8 sony_pic_call1(u8 dev)
1405 {
1406         u8 v1, v2;
1407
1408         wait_on_command(inb_p(spic_dev.cur_ioport->io.minimum + 4) & 2,
1409                         ITERATIONS_LONG);
1410         outb(dev, spic_dev.cur_ioport->io.minimum + 4);
1411         v1 = inb_p(spic_dev.cur_ioport->io.minimum + 4);
1412         v2 = inb_p(spic_dev.cur_ioport->io.minimum);
1413         dprintk("sony_pic_call1: 0x%.4x\n", (v2 << 8) | v1);
1414         return v2;
1415 }
1416
1417 static u8 sony_pic_call2(u8 dev, u8 fn)
1418 {
1419         u8 v1;
1420
1421         wait_on_command(inb_p(spic_dev.cur_ioport->io.minimum + 4) & 2,
1422                         ITERATIONS_LONG);
1423         outb(dev, spic_dev.cur_ioport->io.minimum + 4);
1424         wait_on_command(inb_p(spic_dev.cur_ioport->io.minimum + 4) & 2,
1425                         ITERATIONS_LONG);
1426         outb(fn, spic_dev.cur_ioport->io.minimum);
1427         v1 = inb_p(spic_dev.cur_ioport->io.minimum);
1428         dprintk("sony_pic_call2: 0x%.4x\n", v1);
1429         return v1;
1430 }
1431
1432 static u8 sony_pic_call3(u8 dev, u8 fn, u8 v)
1433 {
1434         u8 v1;
1435
1436         wait_on_command(inb_p(spic_dev.cur_ioport->io.minimum + 4) & 2, ITERATIONS_LONG);
1437         outb(dev, spic_dev.cur_ioport->io.minimum + 4);
1438         wait_on_command(inb_p(spic_dev.cur_ioport->io.minimum + 4) & 2, ITERATIONS_LONG);
1439         outb(fn, spic_dev.cur_ioport->io.minimum);
1440         wait_on_command(inb_p(spic_dev.cur_ioport->io.minimum + 4) & 2, ITERATIONS_LONG);
1441         outb(v, spic_dev.cur_ioport->io.minimum);
1442         v1 = inb_p(spic_dev.cur_ioport->io.minimum);
1443         dprintk("sony_pic_call3: 0x%.4x\n", v1);
1444         return v1;
1445 }
1446
1447 /* camera tests and poweron/poweroff */
1448 #define SONYPI_CAMERA_PICTURE           5
1449 #define SONYPI_CAMERA_CONTROL           0x10
1450
1451 #define SONYPI_CAMERA_BRIGHTNESS                0
1452 #define SONYPI_CAMERA_CONTRAST                  1
1453 #define SONYPI_CAMERA_HUE                       2
1454 #define SONYPI_CAMERA_COLOR                     3
1455 #define SONYPI_CAMERA_SHARPNESS                 4
1456
1457 #define SONYPI_CAMERA_EXPOSURE_MASK             0xC
1458 #define SONYPI_CAMERA_WHITE_BALANCE_MASK        0x3
1459 #define SONYPI_CAMERA_PICTURE_MODE_MASK         0x30
1460 #define SONYPI_CAMERA_MUTE_MASK                 0x40
1461
1462 /* the rest don't need a loop until not 0xff */
1463 #define SONYPI_CAMERA_AGC                       6
1464 #define SONYPI_CAMERA_AGC_MASK                  0x30
1465 #define SONYPI_CAMERA_SHUTTER_MASK              0x7
1466
1467 #define SONYPI_CAMERA_SHUTDOWN_REQUEST          7
1468 #define SONYPI_CAMERA_CONTROL                   0x10
1469
1470 #define SONYPI_CAMERA_STATUS                    7
1471 #define SONYPI_CAMERA_STATUS_READY              0x2
1472 #define SONYPI_CAMERA_STATUS_POSITION           0x4
1473
1474 #define SONYPI_DIRECTION_BACKWARDS              0x4
1475
1476 #define SONYPI_CAMERA_REVISION                  8
1477 #define SONYPI_CAMERA_ROMVERSION                9
1478
1479 static int __sony_pic_camera_ready(void)
1480 {
1481         u8 v;
1482
1483         v = sony_pic_call2(0x8f, SONYPI_CAMERA_STATUS);
1484         return (v != 0xff && (v & SONYPI_CAMERA_STATUS_READY));
1485 }
1486
1487 static int __sony_pic_camera_off(void)
1488 {
1489         if (!camera) {
1490                 printk(KERN_WARNING DRV_PFX "camera control not enabled\n");
1491                 return -ENODEV;
1492         }
1493
1494         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE,
1495                                 SONYPI_CAMERA_MUTE_MASK),
1496                         ITERATIONS_SHORT);
1497
1498         if (spic_dev.camera_power) {
1499                 sony_pic_call2(0x91, 0);
1500                 spic_dev.camera_power = 0;
1501         }
1502         return 0;
1503 }
1504
1505 static int __sony_pic_camera_on(void)
1506 {
1507         int i, j, x;
1508
1509         if (!camera) {
1510                 printk(KERN_WARNING DRV_PFX "camera control not enabled\n");
1511                 return -ENODEV;
1512         }
1513
1514         if (spic_dev.camera_power)
1515                 return 0;
1516
1517         for (j = 5; j > 0; j--) {
1518
1519                 for (x = 0; x < 100 && sony_pic_call2(0x91, 0x1); x++)
1520                         msleep(10);
1521                 sony_pic_call1(0x93);
1522
1523                 for (i = 400; i > 0; i--) {
1524                         if (__sony_pic_camera_ready())
1525                                 break;
1526                         msleep(10);
1527                 }
1528                 if (i)
1529                         break;
1530         }
1531
1532         if (j == 0) {
1533                 printk(KERN_WARNING DRV_PFX "failed to power on camera\n");
1534                 return -ENODEV;
1535         }
1536
1537         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTROL,
1538                                 0x5a),
1539                         ITERATIONS_SHORT);
1540
1541         spic_dev.camera_power = 1;
1542         return 0;
1543 }
1544
1545 /* External camera command (exported to the motion eye v4l driver) */
1546 int sony_pic_camera_command(int command, u8 value)
1547 {
1548         if (!camera)
1549                 return -EIO;
1550
1551         mutex_lock(&spic_dev.lock);
1552
1553         switch (command) {
1554         case SONY_PIC_COMMAND_SETCAMERA:
1555                 if (value)
1556                         __sony_pic_camera_on();
1557                 else
1558                         __sony_pic_camera_off();
1559                 break;
1560         case SONY_PIC_COMMAND_SETCAMERABRIGHTNESS:
1561                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_BRIGHTNESS, value),
1562                                 ITERATIONS_SHORT);
1563                 break;
1564         case SONY_PIC_COMMAND_SETCAMERACONTRAST:
1565                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTRAST, value),
1566                                 ITERATIONS_SHORT);
1567                 break;
1568         case SONY_PIC_COMMAND_SETCAMERAHUE:
1569                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_HUE, value),
1570                                 ITERATIONS_SHORT);
1571                 break;
1572         case SONY_PIC_COMMAND_SETCAMERACOLOR:
1573                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_COLOR, value),
1574                                 ITERATIONS_SHORT);
1575                 break;
1576         case SONY_PIC_COMMAND_SETCAMERASHARPNESS:
1577                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_SHARPNESS, value),
1578                                 ITERATIONS_SHORT);
1579                 break;
1580         case SONY_PIC_COMMAND_SETCAMERAPICTURE:
1581                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE, value),
1582                                 ITERATIONS_SHORT);
1583                 break;
1584         case SONY_PIC_COMMAND_SETCAMERAAGC:
1585                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_AGC, value),
1586                                 ITERATIONS_SHORT);
1587                 break;
1588         default:
1589                 printk(KERN_ERR DRV_PFX "sony_pic_camera_command invalid: %d\n",
1590                        command);
1591                 break;
1592         }
1593         mutex_unlock(&spic_dev.lock);
1594         return 0;
1595 }
1596 EXPORT_SYMBOL(sony_pic_camera_command);
1597
1598 /* gprs/edge modem (SZ460N and SZ210P), thanks to Joshua Wise */
1599 static void sony_pic_set_wwanpower(u8 state)
1600 {
1601         state = !!state;
1602         mutex_lock(&spic_dev.lock);
1603         if (spic_dev.wwan_power == state) {
1604                 mutex_unlock(&spic_dev.lock);
1605                 return;
1606         }
1607         sony_pic_call2(0xB0, state);
1608         spic_dev.wwan_power = state;
1609         mutex_unlock(&spic_dev.lock);
1610 }
1611
1612 static ssize_t sony_pic_wwanpower_store(struct device *dev,
1613                 struct device_attribute *attr,
1614                 const char *buffer, size_t count)
1615 {
1616         unsigned long value;
1617         if (count > 31)
1618                 return -EINVAL;
1619
1620         value = simple_strtoul(buffer, NULL, 10);
1621         sony_pic_set_wwanpower(value);
1622
1623         return count;
1624 }
1625
1626 static ssize_t sony_pic_wwanpower_show(struct device *dev,
1627                 struct device_attribute *attr, char *buffer)
1628 {
1629         ssize_t count;
1630         mutex_lock(&spic_dev.lock);
1631         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.wwan_power);
1632         mutex_unlock(&spic_dev.lock);
1633         return count;
1634 }
1635
1636 /* bluetooth subsystem power state */
1637 static void __sony_pic_set_bluetoothpower(u8 state)
1638 {
1639         state = !!state;
1640         if (spic_dev.bluetooth_power == state)
1641                 return;
1642         sony_pic_call2(0x96, state);
1643         sony_pic_call1(0x82);
1644         spic_dev.bluetooth_power = state;
1645 }
1646
1647 static ssize_t sony_pic_bluetoothpower_store(struct device *dev,
1648                 struct device_attribute *attr,
1649                 const char *buffer, size_t count)
1650 {
1651         unsigned long value;
1652         if (count > 31)
1653                 return -EINVAL;
1654
1655         value = simple_strtoul(buffer, NULL, 10);
1656         mutex_lock(&spic_dev.lock);
1657         __sony_pic_set_bluetoothpower(value);
1658         mutex_unlock(&spic_dev.lock);
1659
1660         return count;
1661 }
1662
1663 static ssize_t sony_pic_bluetoothpower_show(struct device *dev,
1664                 struct device_attribute *attr, char *buffer)
1665 {
1666         ssize_t count = 0;
1667         mutex_lock(&spic_dev.lock);
1668         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.bluetooth_power);
1669         mutex_unlock(&spic_dev.lock);
1670         return count;
1671 }
1672
1673 /* fan speed */
1674 /* FAN0 information (reverse engineered from ACPI tables) */
1675 #define SONY_PIC_FAN0_STATUS    0x93
1676 static int sony_pic_set_fanspeed(unsigned long value)
1677 {
1678         return ec_write(SONY_PIC_FAN0_STATUS, value);
1679 }
1680
1681 static int sony_pic_get_fanspeed(u8 *value)
1682 {
1683         return ec_read(SONY_PIC_FAN0_STATUS, value);
1684 }
1685
1686 static ssize_t sony_pic_fanspeed_store(struct device *dev,
1687                 struct device_attribute *attr,
1688                 const char *buffer, size_t count)
1689 {
1690         unsigned long value;
1691         if (count > 31)
1692                 return -EINVAL;
1693
1694         value = simple_strtoul(buffer, NULL, 10);
1695         if (sony_pic_set_fanspeed(value))
1696                 return -EIO;
1697
1698         return count;
1699 }
1700
1701 static ssize_t sony_pic_fanspeed_show(struct device *dev,
1702                 struct device_attribute *attr, char *buffer)
1703 {
1704         u8 value = 0;
1705         if (sony_pic_get_fanspeed(&value))
1706                 return -EIO;
1707
1708         return snprintf(buffer, PAGE_SIZE, "%d\n", value);
1709 }
1710
1711 #define SPIC_ATTR(_name, _mode)                                 \
1712 struct device_attribute spic_attr_##_name = __ATTR(_name,       \
1713                 _mode, sony_pic_## _name ##_show,               \
1714                 sony_pic_## _name ##_store)
1715
1716 static SPIC_ATTR(bluetoothpower, 0644);
1717 static SPIC_ATTR(wwanpower, 0644);
1718 static SPIC_ATTR(fanspeed, 0644);
1719
1720 static struct attribute *spic_attributes[] = {
1721         &spic_attr_bluetoothpower.attr,
1722         &spic_attr_wwanpower.attr,
1723         &spic_attr_fanspeed.attr,
1724         NULL
1725 };
1726
1727 static struct attribute_group spic_attribute_group = {
1728         .attrs = spic_attributes
1729 };
1730
1731 /******** SONYPI compatibility **********/
1732 #ifdef CONFIG_SONYPI_COMPAT
1733
1734 /* battery / brightness / temperature  addresses */
1735 #define SONYPI_BAT_FLAGS        0x81
1736 #define SONYPI_LCD_LIGHT        0x96
1737 #define SONYPI_BAT1_PCTRM       0xa0
1738 #define SONYPI_BAT1_LEFT        0xa2
1739 #define SONYPI_BAT1_MAXRT       0xa4
1740 #define SONYPI_BAT2_PCTRM       0xa8
1741 #define SONYPI_BAT2_LEFT        0xaa
1742 #define SONYPI_BAT2_MAXRT       0xac
1743 #define SONYPI_BAT1_MAXTK       0xb0
1744 #define SONYPI_BAT1_FULL        0xb2
1745 #define SONYPI_BAT2_MAXTK       0xb8
1746 #define SONYPI_BAT2_FULL        0xba
1747 #define SONYPI_TEMP_STATUS      0xC1
1748
1749 struct sonypi_compat_s {
1750         struct fasync_struct    *fifo_async;
1751         struct kfifo            *fifo;
1752         spinlock_t              fifo_lock;
1753         wait_queue_head_t       fifo_proc_list;
1754         atomic_t                open_count;
1755 };
1756 static struct sonypi_compat_s sonypi_compat = {
1757         .open_count = ATOMIC_INIT(0),
1758 };
1759
1760 static int sonypi_misc_fasync(int fd, struct file *filp, int on)
1761 {
1762         int retval;
1763
1764         retval = fasync_helper(fd, filp, on, &sonypi_compat.fifo_async);
1765         if (retval < 0)
1766                 return retval;
1767         return 0;
1768 }
1769
1770 static int sonypi_misc_release(struct inode *inode, struct file *file)
1771 {
1772         sonypi_misc_fasync(-1, file, 0);
1773         atomic_dec(&sonypi_compat.open_count);
1774         return 0;
1775 }
1776
1777 static int sonypi_misc_open(struct inode *inode, struct file *file)
1778 {
1779         /* Flush input queue on first open */
1780         if (atomic_inc_return(&sonypi_compat.open_count) == 1)
1781                 kfifo_reset(sonypi_compat.fifo);
1782         return 0;
1783 }
1784
1785 static ssize_t sonypi_misc_read(struct file *file, char __user *buf,
1786                                 size_t count, loff_t *pos)
1787 {
1788         ssize_t ret;
1789         unsigned char c;
1790
1791         if ((kfifo_len(sonypi_compat.fifo) == 0) &&
1792             (file->f_flags & O_NONBLOCK))
1793                 return -EAGAIN;
1794
1795         ret = wait_event_interruptible(sonypi_compat.fifo_proc_list,
1796                                        kfifo_len(sonypi_compat.fifo) != 0);
1797         if (ret)
1798                 return ret;
1799
1800         while (ret < count &&
1801                (kfifo_get(sonypi_compat.fifo, &c, sizeof(c)) == sizeof(c))) {
1802                 if (put_user(c, buf++))
1803                         return -EFAULT;
1804                 ret++;
1805         }
1806
1807         if (ret > 0) {
1808                 struct inode *inode = file->f_path.dentry->d_inode;
1809                 inode->i_atime = current_fs_time(inode->i_sb);
1810         }
1811
1812         return ret;
1813 }
1814
1815 static unsigned int sonypi_misc_poll(struct file *file, poll_table *wait)
1816 {
1817         poll_wait(file, &sonypi_compat.fifo_proc_list, wait);
1818         if (kfifo_len(sonypi_compat.fifo))
1819                 return POLLIN | POLLRDNORM;
1820         return 0;
1821 }
1822
1823 static int ec_read16(u8 addr, u16 *value)
1824 {
1825         u8 val_lb, val_hb;
1826         if (ec_read(addr, &val_lb))
1827                 return -1;
1828         if (ec_read(addr + 1, &val_hb))
1829                 return -1;
1830         *value = val_lb | (val_hb << 8);
1831         return 0;
1832 }
1833
1834 static int sonypi_misc_ioctl(struct inode *ip, struct file *fp,
1835                              unsigned int cmd, unsigned long arg)
1836 {
1837         int ret = 0;
1838         void __user *argp = (void __user *)arg;
1839         u8 val8;
1840         u16 val16;
1841         int value;
1842
1843         mutex_lock(&spic_dev.lock);
1844         switch (cmd) {
1845         case SONYPI_IOCGBRT:
1846                 if (sony_backlight_device == NULL) {
1847                         ret = -EIO;
1848                         break;
1849                 }
1850                 if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value)) {
1851                         ret = -EIO;
1852                         break;
1853                 }
1854                 val8 = ((value & 0xff) - 1) << 5;
1855                 if (copy_to_user(argp, &val8, sizeof(val8)))
1856                                 ret = -EFAULT;
1857                 break;
1858         case SONYPI_IOCSBRT:
1859                 if (sony_backlight_device == NULL) {
1860                         ret = -EIO;
1861                         break;
1862                 }
1863                 if (copy_from_user(&val8, argp, sizeof(val8))) {
1864                         ret = -EFAULT;
1865                         break;
1866                 }
1867                 if (acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
1868                                 (val8 >> 5) + 1, NULL)) {
1869                         ret = -EIO;
1870                         break;
1871                 }
1872                 /* sync the backlight device status */
1873                 sony_backlight_device->props.brightness =
1874                     sony_backlight_get_brightness(sony_backlight_device);
1875                 break;
1876         case SONYPI_IOCGBAT1CAP:
1877                 if (ec_read16(SONYPI_BAT1_FULL, &val16)) {
1878                         ret = -EIO;
1879                         break;
1880                 }
1881                 if (copy_to_user(argp, &val16, sizeof(val16)))
1882                         ret = -EFAULT;
1883                 break;
1884         case SONYPI_IOCGBAT1REM:
1885                 if (ec_read16(SONYPI_BAT1_LEFT, &val16)) {
1886                         ret = -EIO;
1887                         break;
1888                 }
1889                 if (copy_to_user(argp, &val16, sizeof(val16)))
1890                         ret = -EFAULT;
1891                 break;
1892         case SONYPI_IOCGBAT2CAP:
1893                 if (ec_read16(SONYPI_BAT2_FULL, &val16)) {
1894                         ret = -EIO;
1895                         break;
1896                 }
1897                 if (copy_to_user(argp, &val16, sizeof(val16)))
1898                         ret = -EFAULT;
1899                 break;
1900         case SONYPI_IOCGBAT2REM:
1901                 if (ec_read16(SONYPI_BAT2_LEFT, &val16)) {
1902                         ret = -EIO;
1903                         break;
1904                 }
1905                 if (copy_to_user(argp, &val16, sizeof(val16)))
1906                         ret = -EFAULT;
1907                 break;
1908         case SONYPI_IOCGBATFLAGS:
1909                 if (ec_read(SONYPI_BAT_FLAGS, &val8)) {
1910                         ret = -EIO;
1911                         break;
1912                 }
1913                 val8 &= 0x07;
1914                 if (copy_to_user(argp, &val8, sizeof(val8)))
1915                         ret = -EFAULT;
1916                 break;
1917         case SONYPI_IOCGBLUE:
1918                 val8 = spic_dev.bluetooth_power;
1919                 if (copy_to_user(argp, &val8, sizeof(val8)))
1920                         ret = -EFAULT;
1921                 break;
1922         case SONYPI_IOCSBLUE:
1923                 if (copy_from_user(&val8, argp, sizeof(val8))) {
1924                         ret = -EFAULT;
1925                         break;
1926                 }
1927                 __sony_pic_set_bluetoothpower(val8);
1928                 break;
1929         /* FAN Controls */
1930         case SONYPI_IOCGFAN:
1931                 if (sony_pic_get_fanspeed(&val8)) {
1932                         ret = -EIO;
1933                         break;
1934                 }
1935                 if (copy_to_user(argp, &val8, sizeof(val8)))
1936                         ret = -EFAULT;
1937                 break;
1938         case SONYPI_IOCSFAN:
1939                 if (copy_from_user(&val8, argp, sizeof(val8))) {
1940                         ret = -EFAULT;
1941                         break;
1942                 }
1943                 if (sony_pic_set_fanspeed(val8))
1944                         ret = -EIO;
1945                 break;
1946         /* GET Temperature (useful under APM) */
1947         case SONYPI_IOCGTEMP:
1948                 if (ec_read(SONYPI_TEMP_STATUS, &val8)) {
1949                         ret = -EIO;
1950                         break;
1951                 }
1952                 if (copy_to_user(argp, &val8, sizeof(val8)))
1953                         ret = -EFAULT;
1954                 break;
1955         default:
1956                 ret = -EINVAL;
1957         }
1958         mutex_unlock(&spic_dev.lock);
1959         return ret;
1960 }
1961
1962 static const struct file_operations sonypi_misc_fops = {
1963         .owner          = THIS_MODULE,
1964         .read           = sonypi_misc_read,
1965         .poll           = sonypi_misc_poll,
1966         .open           = sonypi_misc_open,
1967         .release        = sonypi_misc_release,
1968         .fasync         = sonypi_misc_fasync,
1969         .ioctl          = sonypi_misc_ioctl,
1970 };
1971
1972 static struct miscdevice sonypi_misc_device = {
1973         .minor          = MISC_DYNAMIC_MINOR,
1974         .name           = "sonypi",
1975         .fops           = &sonypi_misc_fops,
1976 };
1977
1978 static void sonypi_compat_report_event(u8 event)
1979 {
1980         kfifo_put(sonypi_compat.fifo, (unsigned char *)&event, sizeof(event));
1981         kill_fasync(&sonypi_compat.fifo_async, SIGIO, POLL_IN);
1982         wake_up_interruptible(&sonypi_compat.fifo_proc_list);
1983 }
1984
1985 static int sonypi_compat_init(void)
1986 {
1987         int error;
1988
1989         spin_lock_init(&sonypi_compat.fifo_lock);
1990         sonypi_compat.fifo = kfifo_alloc(SONY_LAPTOP_BUF_SIZE, GFP_KERNEL,
1991                                          &sonypi_compat.fifo_lock);
1992         if (IS_ERR(sonypi_compat.fifo)) {
1993                 printk(KERN_ERR DRV_PFX "kfifo_alloc failed\n");
1994                 return PTR_ERR(sonypi_compat.fifo);
1995         }
1996
1997         init_waitqueue_head(&sonypi_compat.fifo_proc_list);
1998
1999         if (minor != -1)
2000                 sonypi_misc_device.minor = minor;
2001         error = misc_register(&sonypi_misc_device);
2002         if (error) {
2003                 printk(KERN_ERR DRV_PFX "misc_register failed\n");
2004                 goto err_free_kfifo;
2005         }
2006         if (minor == -1)
2007                 printk(KERN_INFO DRV_PFX "device allocated minor is %d\n",
2008                        sonypi_misc_device.minor);
2009
2010         return 0;
2011
2012 err_free_kfifo:
2013         kfifo_free(sonypi_compat.fifo);
2014         return error;
2015 }
2016
2017 static void sonypi_compat_exit(void)
2018 {
2019         misc_deregister(&sonypi_misc_device);
2020         kfifo_free(sonypi_compat.fifo);
2021 }
2022 #else
2023 static int sonypi_compat_init(void) { return 0; }
2024 static void sonypi_compat_exit(void) { }
2025 static void sonypi_compat_report_event(u8 event) { }
2026 #endif /* CONFIG_SONYPI_COMPAT */
2027
2028 /*
2029  * ACPI callbacks
2030  */
2031 static acpi_status
2032 sony_pic_read_possible_resource(struct acpi_resource *resource, void *context)
2033 {
2034         u32 i;
2035         struct sony_pic_dev *dev = (struct sony_pic_dev *)context;
2036
2037         switch (resource->type) {
2038         case ACPI_RESOURCE_TYPE_START_DEPENDENT:
2039         case ACPI_RESOURCE_TYPE_END_DEPENDENT:
2040                 return AE_OK;
2041
2042         case ACPI_RESOURCE_TYPE_IRQ:
2043                 {
2044                         struct acpi_resource_irq *p = &resource->data.irq;
2045                         struct sony_pic_irq *interrupt = NULL;
2046                         if (!p || !p->interrupt_count) {
2047                                 /*
2048                                  * IRQ descriptors may have no IRQ# bits set,
2049                                  * particularly those those w/ _STA disabled
2050                                  */
2051                                 dprintk("Blank IRQ resource\n");
2052                                 return AE_OK;
2053                         }
2054                         for (i = 0; i < p->interrupt_count; i++) {
2055                                 if (!p->interrupts[i]) {
2056                                         printk(KERN_WARNING DRV_PFX
2057                                                         "Invalid IRQ %d\n",
2058                                                         p->interrupts[i]);
2059                                         continue;
2060                                 }
2061                                 interrupt = kzalloc(sizeof(*interrupt),
2062                                                 GFP_KERNEL);
2063                                 if (!interrupt)
2064                                         return AE_ERROR;
2065
2066                                 list_add_tail(&interrupt->list, &dev->interrupts);
2067                                 interrupt->irq.triggering = p->triggering;
2068                                 interrupt->irq.polarity = p->polarity;
2069                                 interrupt->irq.sharable = p->sharable;
2070                                 interrupt->irq.interrupt_count = 1;
2071                                 interrupt->irq.interrupts[0] = p->interrupts[i];
2072                         }
2073                         return AE_OK;
2074                 }
2075         case ACPI_RESOURCE_TYPE_IO:
2076                 {
2077                         struct acpi_resource_io *io = &resource->data.io;
2078                         struct sony_pic_ioport *ioport = NULL;
2079                         if (!io) {
2080                                 dprintk("Blank IO resource\n");
2081                                 return AE_OK;
2082                         }
2083
2084                         ioport = kzalloc(sizeof(*ioport), GFP_KERNEL);
2085                         if (!ioport)
2086                                 return AE_ERROR;
2087
2088                         list_add_tail(&ioport->list, &dev->ioports);
2089                         memcpy(&ioport->io, io, sizeof(*io));
2090                         return AE_OK;
2091                 }
2092         default:
2093                 dprintk("Resource %d isn't an IRQ nor an IO port\n",
2094                                 resource->type);
2095
2096         case ACPI_RESOURCE_TYPE_END_TAG:
2097                 return AE_OK;
2098         }
2099         return AE_CTRL_TERMINATE;
2100 }
2101
2102 static int sony_pic_possible_resources(struct acpi_device *device)
2103 {
2104         int result = 0;
2105         acpi_status status = AE_OK;
2106
2107         if (!device)
2108                 return -EINVAL;
2109
2110         /* get device status */
2111         /* see acpi_pci_link_get_current acpi_pci_link_get_possible */
2112         dprintk("Evaluating _STA\n");
2113         result = acpi_bus_get_status(device);
2114         if (result) {
2115                 printk(KERN_WARNING DRV_PFX "Unable to read status\n");
2116                 goto end;
2117         }
2118
2119         if (!device->status.enabled)
2120                 dprintk("Device disabled\n");
2121         else
2122                 dprintk("Device enabled\n");
2123
2124         /*
2125          * Query and parse 'method'
2126          */
2127         dprintk("Evaluating %s\n", METHOD_NAME__PRS);
2128         status = acpi_walk_resources(device->handle, METHOD_NAME__PRS,
2129                         sony_pic_read_possible_resource, &spic_dev);
2130         if (ACPI_FAILURE(status)) {
2131                 printk(KERN_WARNING DRV_PFX
2132                                 "Failure evaluating %s\n",
2133                                 METHOD_NAME__PRS);
2134                 result = -ENODEV;
2135         }
2136 end:
2137         return result;
2138 }
2139
2140 /*
2141  *  Disable the spic device by calling its _DIS method
2142  */
2143 static int sony_pic_disable(struct acpi_device *device)
2144 {
2145         if (ACPI_FAILURE(acpi_evaluate_object(device->handle,
2146                         "_DIS", NULL, NULL)))
2147                 return -ENXIO;
2148
2149         dprintk("Device disabled\n");
2150         return 0;
2151 }
2152
2153
2154 /*
2155  *  Based on drivers/acpi/pci_link.c:acpi_pci_link_set
2156  *
2157  *  Call _SRS to set current resources
2158  */
2159 static int sony_pic_enable(struct acpi_device *device,
2160                 struct sony_pic_ioport *ioport, struct sony_pic_irq *irq)
2161 {
2162         acpi_status status;
2163         int result = 0;
2164         struct {
2165                 struct acpi_resource io_res;
2166                 struct acpi_resource irq_res;
2167                 struct acpi_resource end;
2168         } *resource;
2169         struct acpi_buffer buffer = { 0, NULL };
2170
2171         if (!ioport || !irq)
2172                 return -EINVAL;
2173
2174         /* init acpi_buffer */
2175         resource = kzalloc(sizeof(*resource) + 1, GFP_KERNEL);
2176         if (!resource)
2177                 return -ENOMEM;
2178
2179         buffer.length = sizeof(*resource) + 1;
2180         buffer.pointer = resource;
2181
2182         /* setup io resource */
2183         resource->io_res.type = ACPI_RESOURCE_TYPE_IO;
2184         resource->io_res.length = sizeof(struct acpi_resource);
2185         memcpy(&resource->io_res.data.io, &ioport->io,
2186                         sizeof(struct acpi_resource_io));
2187
2188         /* setup irq resource */
2189         resource->irq_res.type = ACPI_RESOURCE_TYPE_IRQ;
2190         resource->irq_res.length = sizeof(struct acpi_resource);
2191         memcpy(&resource->irq_res.data.irq, &irq->irq,
2192                         sizeof(struct acpi_resource_irq));
2193         /* we requested a shared irq */
2194         resource->irq_res.data.irq.sharable = ACPI_SHARED;
2195
2196         resource->end.type = ACPI_RESOURCE_TYPE_END_TAG;
2197
2198         /* Attempt to set the resource */
2199         dprintk("Evaluating _SRS\n");
2200         status = acpi_set_current_resources(device->handle, &buffer);
2201
2202         /* check for total failure */
2203         if (ACPI_FAILURE(status)) {
2204                 printk(KERN_ERR DRV_PFX "Error evaluating _SRS");
2205                 result = -ENODEV;
2206                 goto end;
2207         }
2208
2209         /* Necessary device initializations calls (from sonypi) */
2210         sony_pic_call1(0x82);
2211         sony_pic_call2(0x81, 0xff);
2212         sony_pic_call1(compat ? 0x92 : 0x82);
2213
2214 end:
2215         kfree(resource);
2216         return result;
2217 }
2218
2219 /*****************
2220  *
2221  * ISR: some event is available
2222  *
2223  *****************/
2224 static irqreturn_t sony_pic_irq(int irq, void *dev_id)
2225 {
2226         int i, j;
2227         u32 port_val = 0;
2228         u8 ev = 0;
2229         u8 data_mask = 0;
2230         u8 device_event = 0;
2231
2232         struct sony_pic_dev *dev = (struct sony_pic_dev *) dev_id;
2233
2234         acpi_os_read_port(dev->cur_ioport->io.minimum, &port_val,
2235                         dev->cur_ioport->io.address_length);
2236         ev = port_val & SONY_PIC_EV_MASK;
2237         data_mask = 0xff & (port_val >> (dev->cur_ioport->io.address_length - 8));
2238
2239         dprintk("event (0x%.8x [%.2x] [%.2x]) at port 0x%.4x\n",
2240                         port_val, ev, data_mask, dev->cur_ioport->io.minimum);
2241
2242         if (ev == 0x00 || ev == 0xff)
2243                 return IRQ_HANDLED;
2244
2245         for (i = 0; sony_pic_eventtypes[i].model; i++) {
2246
2247                 if (spic_dev.model != sony_pic_eventtypes[i].model)
2248                         continue;
2249
2250                 if ((data_mask & sony_pic_eventtypes[i].data) !=
2251                     sony_pic_eventtypes[i].data)
2252                         continue;
2253
2254                 if (!(mask & sony_pic_eventtypes[i].mask))
2255                         continue;
2256
2257                 for (j = 0; sony_pic_eventtypes[i].events[j].event; j++) {
2258                         if (ev == sony_pic_eventtypes[i].events[j].data) {
2259                                 device_event =
2260                                         sony_pic_eventtypes[i].events[j].event;
2261                                 goto found;
2262                         }
2263                 }
2264         }
2265         return IRQ_HANDLED;
2266
2267 found:
2268         sony_laptop_report_input_event(device_event);
2269         acpi_bus_generate_event(spic_dev.acpi_dev, 1, device_event);
2270         sonypi_compat_report_event(device_event);
2271
2272         return IRQ_HANDLED;
2273 }
2274
2275 /*****************
2276  *
2277  *  ACPI driver
2278  *
2279  *****************/
2280 static int sony_pic_remove(struct acpi_device *device, int type)
2281 {
2282         struct sony_pic_ioport *io, *tmp_io;
2283         struct sony_pic_irq *irq, *tmp_irq;
2284
2285         sonypi_compat_exit();
2286
2287         if (sony_pic_disable(device)) {
2288                 printk(KERN_ERR DRV_PFX "Couldn't disable device.\n");
2289                 return -ENXIO;
2290         }
2291
2292         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
2293         release_region(spic_dev.cur_ioport->io.minimum,
2294                         spic_dev.cur_ioport->io.address_length);
2295
2296         sony_laptop_remove_input();
2297
2298         /* pf attrs */
2299         sysfs_remove_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
2300         sony_pf_remove();
2301
2302         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
2303                 list_del(&io->list);
2304                 kfree(io);
2305         }
2306         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
2307                 list_del(&irq->list);
2308                 kfree(irq);
2309         }
2310         spic_dev.cur_ioport = NULL;
2311         spic_dev.cur_irq = NULL;
2312
2313         dprintk(SONY_PIC_DRIVER_NAME " removed.\n");
2314         return 0;
2315 }
2316
2317 static int sony_pic_add(struct acpi_device *device)
2318 {
2319         int result;
2320         struct sony_pic_ioport *io, *tmp_io;
2321         struct sony_pic_irq *irq, *tmp_irq;
2322
2323         printk(KERN_INFO DRV_PFX "%s v%s.\n",
2324                 SONY_PIC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
2325
2326         spic_dev.acpi_dev = device;
2327         strcpy(acpi_device_class(device), "sony/hotkey");
2328         spic_dev.model = sony_pic_detect_device_type();
2329         mutex_init(&spic_dev.lock);
2330
2331         /* read _PRS resources */
2332         result = sony_pic_possible_resources(device);
2333         if (result) {
2334                 printk(KERN_ERR DRV_PFX
2335                                 "Unabe to read possible resources.\n");
2336                 goto err_free_resources;
2337         }
2338
2339         /* setup input devices and helper fifo */
2340         result = sony_laptop_setup_input();
2341         if (result) {
2342                 printk(KERN_ERR DRV_PFX
2343                                 "Unabe to create input devices.\n");
2344                 goto err_free_resources;
2345         }
2346
2347         /* request io port */
2348         list_for_each_entry(io, &spic_dev.ioports, list) {
2349                 if (request_region(io->io.minimum, io->io.address_length,
2350                                         "Sony Programable I/O Device")) {
2351                         dprintk("I/O port: 0x%.4x (0x%.4x) + 0x%.2x\n",
2352                                         io->io.minimum, io->io.maximum,
2353                                         io->io.address_length);
2354                         spic_dev.cur_ioport = io;
2355                         break;
2356                 }
2357         }
2358         if (!spic_dev.cur_ioport) {
2359                 printk(KERN_ERR DRV_PFX "Failed to request_region.\n");
2360                 result = -ENODEV;
2361                 goto err_remove_input;
2362         }
2363
2364         /* request IRQ */
2365         list_for_each_entry(irq, &spic_dev.interrupts, list) {
2366                 if (!request_irq(irq->irq.interrupts[0], sony_pic_irq,
2367                                         IRQF_SHARED, "sony-laptop", &spic_dev)) {
2368                         dprintk("IRQ: %d - triggering: %d - "
2369                                         "polarity: %d - shr: %d\n",
2370                                         irq->irq.interrupts[0],
2371                                         irq->irq.triggering,
2372                                         irq->irq.polarity,
2373                                         irq->irq.sharable);
2374                         spic_dev.cur_irq = irq;
2375                         break;
2376                 }
2377         }
2378         if (!spic_dev.cur_irq) {
2379                 printk(KERN_ERR DRV_PFX "Failed to request_irq.\n");
2380                 result = -ENODEV;
2381                 goto err_release_region;
2382         }
2383
2384         /* set resource status _SRS */
2385         result = sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
2386         if (result) {
2387                 printk(KERN_ERR DRV_PFX "Couldn't enable device.\n");
2388                 goto err_free_irq;
2389         }
2390
2391         spic_dev.bluetooth_power = -1;
2392         /* create device attributes */
2393         result = sony_pf_add();
2394         if (result)
2395                 goto err_disable_device;
2396
2397         result = sysfs_create_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
2398         if (result)
2399                 goto err_remove_pf;
2400
2401         if (sonypi_compat_init())
2402                 goto err_remove_pf;
2403
2404         return 0;
2405
2406 err_remove_pf:
2407         sony_pf_remove();
2408
2409 err_disable_device:
2410         sony_pic_disable(device);
2411
2412 err_free_irq:
2413         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
2414
2415 err_release_region:
2416         release_region(spic_dev.cur_ioport->io.minimum,
2417                         spic_dev.cur_ioport->io.address_length);
2418
2419 err_remove_input:
2420         sony_laptop_remove_input();
2421
2422 err_free_resources:
2423         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
2424                 list_del(&io->list);
2425                 kfree(io);
2426         }
2427         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
2428                 list_del(&irq->list);
2429                 kfree(irq);
2430         }
2431         spic_dev.cur_ioport = NULL;
2432         spic_dev.cur_irq = NULL;
2433
2434         return result;
2435 }
2436
2437 static int sony_pic_suspend(struct acpi_device *device, pm_message_t state)
2438 {
2439         if (sony_pic_disable(device))
2440                 return -ENXIO;
2441         return 0;
2442 }
2443
2444 static int sony_pic_resume(struct acpi_device *device)
2445 {
2446         sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
2447         return 0;
2448 }
2449
2450 static struct acpi_driver sony_pic_driver = {
2451         .name = SONY_PIC_DRIVER_NAME,
2452         .class = SONY_PIC_CLASS,
2453         .ids = SONY_PIC_HID,
2454         .owner = THIS_MODULE,
2455         .ops = {
2456                 .add = sony_pic_add,
2457                 .remove = sony_pic_remove,
2458                 .suspend = sony_pic_suspend,
2459                 .resume = sony_pic_resume,
2460                 },
2461 };
2462
2463 static struct dmi_system_id __initdata sonypi_dmi_table[] = {
2464         {
2465                 .ident = "Sony Vaio",
2466                 .matches = {
2467                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
2468                         DMI_MATCH(DMI_PRODUCT_NAME, "PCG-"),
2469                 },
2470         },
2471         {
2472                 .ident = "Sony Vaio",
2473                 .matches = {
2474                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
2475                         DMI_MATCH(DMI_PRODUCT_NAME, "VGN-"),
2476                 },
2477         },
2478         { }
2479 };
2480
2481 static int __init sony_laptop_init(void)
2482 {
2483         int result;
2484
2485         if (!no_spic && dmi_check_system(sonypi_dmi_table)) {
2486                 result = acpi_bus_register_driver(&sony_pic_driver);
2487                 if (result) {
2488                         printk(KERN_ERR DRV_PFX
2489                                         "Unable to register SPIC driver.");
2490                         goto out;
2491                 }
2492         }
2493
2494         result = acpi_bus_register_driver(&sony_nc_driver);
2495         if (result) {
2496                 printk(KERN_ERR DRV_PFX "Unable to register SNC driver.");
2497                 goto out_unregister_pic;
2498         }
2499
2500         return 0;
2501
2502 out_unregister_pic:
2503         if (!no_spic)
2504                 acpi_bus_unregister_driver(&sony_pic_driver);
2505 out:
2506         return result;
2507 }
2508
2509 static void __exit sony_laptop_exit(void)
2510 {
2511         acpi_bus_unregister_driver(&sony_nc_driver);
2512         if (!no_spic)
2513                 acpi_bus_unregister_driver(&sony_pic_driver);
2514 }
2515
2516 module_init(sony_laptop_init);
2517 module_exit(sony_laptop_exit);