git.oblomov.eu Git - linux-2.6/blob - 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_MASK(EV_KEY) | BIT_MASK(EV_REL);
 415         jog_dev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_MIDDLE);
 416         jog_dev->relbit[0] = BIT_MASK(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(const 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 static const struct dmi_system_id sony_nc_ids[] = {
 849                 {
 850                         .ident = "Sony Vaio FE 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-FE"),
 856                         },
 857                 },
 858                 {
 859                         .ident = "Sony Vaio FZ Series",
 860                         .callback = sony_nc_C_enable,
 861                         .driver_data = sony_C_events,
 862                         .matches = {
 863                                 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
 864                                 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FZ"),
 865                         },
 866                 },
 867                 {
 868                         .ident = "Sony Vaio C Series",
 869                         .callback = sony_nc_C_enable,
 870                         .driver_data = sony_C_events,
 871                         .matches = {
 872                                 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
 873                                 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-C"),
 874                         },
 875                 },
 876                 { }
 877 };
 878
 879 /*
 880  * ACPI callbacks
 881  */
 882 static void sony_acpi_notify(acpi_handle handle, u32 event, void *data)
 883 {
 884         struct sony_nc_event *evmap;
 885         u32 ev = event;
 886         int result;
 887
 888         if (ev == 0x92) {
 889                 /* read the key pressed from EC.GECR
 890                  * A call to SN07 with 0x0202 will do it as well respecting
 891                  * the current protocol on different OSes
 892                  *
 893                  * Note: the path for GECR may be
 894                  *   \_SB.PCI0.LPCB.EC (C, FE, AR, N and friends)
 895                  *   \_SB.PCI0.PIB.EC0 (VGN-FR notifications are sent directly, no GECR)
 896                  *
 897                  * TODO: we may want to do the same for the older GHKE -need
 898                  *       dmi list- so this snippet may become one more callback.
 899                  */
 900                 if (acpi_callsetfunc(handle, "SN07", 0x0202, &result) < 0)
 901                         dprintk("sony_acpi_notify, unable to decode event 0x%.2x\n", ev);
 902                 else
 903                         ev = result & 0xFF;
 904         }
 905
 906         if (sony_nc_events)
 907                 for (evmap = sony_nc_events; evmap->event; evmap++) {
 908                         if (evmap->data == ev) {
 909                                 ev = evmap->event;
 910                                 break;
 911                         }
 912                 }
 913
 914         dprintk("sony_acpi_notify, event: 0x%.2x\n", ev);
 915         sony_laptop_report_input_event(ev);
 916         acpi_bus_generate_proc_event(sony_nc_acpi_device, 1, ev);
 917 }
 918
 919 static acpi_status sony_walk_callback(acpi_handle handle, u32 level,
 920                                       void *context, void **return_value)
 921 {
 922         struct acpi_namespace_node *node;
 923         union acpi_operand_object *operand;
 924
 925         node = (struct acpi_namespace_node *)handle;
 926         operand = (union acpi_operand_object *)node->object;
 927
 928         printk(KERN_WARNING DRV_PFX "method: name: %4.4s, args %X\n", node->name.ascii,
 929                (u32) operand->method.param_count);
 930
 931         return AE_OK;
 932 }
 933
 934 /*
 935  * ACPI device
 936  */
 937 static int sony_nc_resume(struct acpi_device *device)
 938 {
 939         struct sony_nc_value *item;
 940
 941         for (item = sony_nc_values; item->name; item++) {
 942                 int ret;
 943
 944                 if (!item->valid)
 945                         continue;
 946                 ret = acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset,
 947                                        item->value, NULL);
 948                 if (ret < 0) {
 949                         printk("%s: %d\n", __FUNCTION__, ret);
 950                         break;
 951                 }
 952         }
 953
 954         /* set the last requested brightness level */
 955         if (sony_backlight_device &&
 956                         !sony_backlight_update_status(sony_backlight_device))
 957                 printk(KERN_WARNING DRV_PFX "unable to restore brightness level");
 958
 959         /* re-initialize models with specific requirements */
 960         dmi_check_system(sony_nc_ids);
 961
 962         return 0;
 963 }
 964
 965 static int sony_nc_add(struct acpi_device *device)
 966 {
 967         acpi_status status;
 968         int result = 0;
 969         acpi_handle handle;
 970         struct sony_nc_value *item;
 971
 972         printk(KERN_INFO DRV_PFX "%s v%s.\n",
 973                 SONY_NC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
 974
 975         sony_nc_acpi_device = device;
 976         strcpy(acpi_device_class(device), "sony/hotkey");
 977
 978         sony_nc_acpi_handle = device->handle;
 979
 980         /* read device status */
 981         result = acpi_bus_get_status(device);
 982         /* bail IFF the above call was successful and the device is not present */
 983         if (!result && !device->status.present) {
 984                 dprintk("Device not present\n");
 985                 result = -ENODEV;
 986                 goto outwalk;
 987         }
 988
 989         if (debug) {
 990                 status = acpi_walk_namespace(ACPI_TYPE_METHOD, sony_nc_acpi_handle,
 991                                              1, sony_walk_callback, NULL, NULL);
 992                 if (ACPI_FAILURE(status)) {
 993                         printk(KERN_WARNING DRV_PFX "unable to walk acpi resources\n");
 994                         result = -ENODEV;
 995                         goto outwalk;
 996                 }
 997         }
 998
 999         /* try to _INI the device if such method exists (ACPI spec 3.0-6.5.1
1000          * should be respected as we already checked for the device presence above */
1001         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, METHOD_NAME__INI, &handle))) {
1002                 dprintk("Invoking _INI\n");
1003                 if (ACPI_FAILURE(acpi_evaluate_object(sony_nc_acpi_handle, METHOD_NAME__INI,
1004                                                 NULL, NULL)))
1005                         dprintk("_INI Method failed\n");
1006         }
1007
1008         /* setup input devices and helper fifo */
1009         result = sony_laptop_setup_input();
1010         if (result) {
1011                 printk(KERN_ERR DRV_PFX
1012                                 "Unabe to create input devices.\n");
1013                 goto outwalk;
1014         }
1015
1016         status = acpi_install_notify_handler(sony_nc_acpi_handle,
1017                                              ACPI_DEVICE_NOTIFY,
1018                                              sony_acpi_notify, NULL);
1019         if (ACPI_FAILURE(status)) {
1020                 printk(KERN_WARNING DRV_PFX "unable to install notify handler (%u)\n", status);
1021                 result = -ENODEV;
1022                 goto outinput;
1023         }
1024
1025         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT", &handle))) {
1026                 sony_backlight_device = backlight_device_register("sony", NULL,
1027                                                                   NULL,
1028                                                                   &sony_backlight_ops);
1029
1030                 if (IS_ERR(sony_backlight_device)) {
1031                         printk(KERN_WARNING DRV_PFX "unable to register backlight device\n");
1032                         sony_backlight_device = NULL;
1033                 } else {
1034                         sony_backlight_device->props.brightness =
1035                             sony_backlight_get_brightness
1036                             (sony_backlight_device);
1037                         sony_backlight_device->props.max_brightness =
1038                             SONY_MAX_BRIGHTNESS - 1;
1039                 }
1040
1041         }
1042
1043         /* initialize models with specific requirements */
1044         dmi_check_system(sony_nc_ids);
1045
1046         result = sony_pf_add();
1047         if (result)
1048                 goto outbacklight;
1049
1050         /* create sony_pf sysfs attributes related to the SNC device */
1051         for (item = sony_nc_values; item->name; ++item) {
1052
1053                 if (!debug && item->debug)
1054                         continue;
1055
1056                 /* find the available acpiget as described in the DSDT */
1057                 for (; item->acpiget && *item->acpiget; ++item->acpiget) {
1058                         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
1059                                                          *item->acpiget,
1060                                                          &handle))) {
1061                                 dprintk("Found %s getter: %s\n",
1062                                                 item->name, *item->acpiget);
1063                                 item->devattr.attr.mode |= S_IRUGO;
1064                                 break;
1065                         }
1066                 }
1067
1068                 /* find the available acpiset as described in the DSDT */
1069                 for (; item->acpiset && *item->acpiset; ++item->acpiset) {
1070                         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
1071                                                          *item->acpiset,
1072                                                          &handle))) {
1073                                 dprintk("Found %s setter: %s\n",
1074                                                 item->name, *item->acpiset);
1075                                 item->devattr.attr.mode |= S_IWUSR;
1076                                 break;
1077                         }
1078                 }
1079
1080                 if (item->devattr.attr.mode != 0) {
1081                         result =
1082                             device_create_file(&sony_pf_device->dev,
1083                                                &item->devattr);
1084                         if (result)
1085                                 goto out_sysfs;
1086                 }
1087         }
1088
1089         return 0;
1090
1091       out_sysfs:
1092         for (item = sony_nc_values; item->name; ++item) {
1093                 device_remove_file(&sony_pf_device->dev, &item->devattr);
1094         }
1095         sony_pf_remove();
1096
1097       outbacklight:
1098         if (sony_backlight_device)
1099                 backlight_device_unregister(sony_backlight_device);
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       outinput:
1108         sony_laptop_remove_input();
1109
1110       outwalk:
1111         return result;
1112 }
1113
1114 static int sony_nc_remove(struct acpi_device *device, int type)
1115 {
1116         acpi_status status;
1117         struct sony_nc_value *item;
1118
1119         if (sony_backlight_device)
1120                 backlight_device_unregister(sony_backlight_device);
1121
1122         sony_nc_acpi_device = NULL;
1123
1124         status = acpi_remove_notify_handler(sony_nc_acpi_handle,
1125                                             ACPI_DEVICE_NOTIFY,
1126                                             sony_acpi_notify);
1127         if (ACPI_FAILURE(status))
1128                 printk(KERN_WARNING DRV_PFX "unable to remove notify handler\n");
1129
1130         for (item = sony_nc_values; item->name; ++item) {
1131                 device_remove_file(&sony_pf_device->dev, &item->devattr);
1132         }
1133
1134         sony_pf_remove();
1135         sony_laptop_remove_input();
1136         dprintk(SONY_NC_DRIVER_NAME " removed.\n");
1137
1138         return 0;
1139 }
1140
1141 static const struct acpi_device_id sony_device_ids[] = {
1142         {SONY_NC_HID, 0},
1143         {SONY_PIC_HID, 0},
1144         {"", 0},
1145 };
1146 MODULE_DEVICE_TABLE(acpi, sony_device_ids);
1147
1148 static const struct acpi_device_id sony_nc_device_ids[] = {
1149         {SONY_NC_HID, 0},
1150         {"", 0},
1151 };
1152
1153 static struct acpi_driver sony_nc_driver = {
1154         .name = SONY_NC_DRIVER_NAME,
1155         .class = SONY_NC_CLASS,
1156         .ids = sony_nc_device_ids,
1157         .owner = THIS_MODULE,
1158         .ops = {
1159                 .add = sony_nc_add,
1160                 .remove = sony_nc_remove,
1161                 .resume = sony_nc_resume,
1162                 },
1163 };
1164
1165 /*********** SPIC (SNY6001) Device ***********/
1166
1167 #define SONYPI_DEVICE_TYPE1     0x00000001
1168 #define SONYPI_DEVICE_TYPE2     0x00000002
1169 #define SONYPI_DEVICE_TYPE3     0x00000004
1170
1171 #define SONYPI_TYPE1_OFFSET     0x04
1172 #define SONYPI_TYPE2_OFFSET     0x12
1173 #define SONYPI_TYPE3_OFFSET     0x12
1174
1175 struct sony_pic_ioport {
1176         struct acpi_resource_io io1;
1177         struct acpi_resource_io io2;
1178         struct list_head        list;
1179 };
1180
1181 struct sony_pic_irq {
1182         struct acpi_resource_irq        irq;
1183         struct list_head                list;
1184 };
1185
1186 struct sony_pic_dev {
1187         int                     model;
1188         u16                     evport_offset;
1189         u8                      camera_power;
1190         u8                      bluetooth_power;
1191         u8                      wwan_power;
1192         struct acpi_device      *acpi_dev;
1193         struct sony_pic_irq     *cur_irq;
1194         struct sony_pic_ioport  *cur_ioport;
1195         struct list_head        interrupts;
1196         struct list_head        ioports;
1197         struct mutex            lock;
1198 };
1199
1200 static struct sony_pic_dev spic_dev = {
1201         .interrupts     = LIST_HEAD_INIT(spic_dev.interrupts),
1202         .ioports        = LIST_HEAD_INIT(spic_dev.ioports),
1203 };
1204
1205 /* Event masks */
1206 #define SONYPI_JOGGER_MASK                      0x00000001
1207 #define SONYPI_CAPTURE_MASK                     0x00000002
1208 #define SONYPI_FNKEY_MASK                       0x00000004
1209 #define SONYPI_BLUETOOTH_MASK                   0x00000008
1210 #define SONYPI_PKEY_MASK                        0x00000010
1211 #define SONYPI_BACK_MASK                        0x00000020
1212 #define SONYPI_HELP_MASK                        0x00000040
1213 #define SONYPI_LID_MASK                         0x00000080
1214 #define SONYPI_ZOOM_MASK                        0x00000100
1215 #define SONYPI_THUMBPHRASE_MASK                 0x00000200
1216 #define SONYPI_MEYE_MASK                        0x00000400
1217 #define SONYPI_MEMORYSTICK_MASK                 0x00000800
1218 #define SONYPI_BATTERY_MASK                     0x00001000
1219 #define SONYPI_WIRELESS_MASK                    0x00002000
1220
1221 struct sonypi_event {
1222         u8      data;
1223         u8      event;
1224 };
1225
1226 /* The set of possible button release events */
1227 static struct sonypi_event sonypi_releaseev[] = {
1228         { 0x00, SONYPI_EVENT_ANYBUTTON_RELEASED },
1229         { 0, 0 }
1230 };
1231
1232 /* The set of possible jogger events  */
1233 static struct sonypi_event sonypi_joggerev[] = {
1234         { 0x1f, SONYPI_EVENT_JOGDIAL_UP },
1235         { 0x01, SONYPI_EVENT_JOGDIAL_DOWN },
1236         { 0x5f, SONYPI_EVENT_JOGDIAL_UP_PRESSED },
1237         { 0x41, SONYPI_EVENT_JOGDIAL_DOWN_PRESSED },
1238         { 0x1e, SONYPI_EVENT_JOGDIAL_FAST_UP },
1239         { 0x02, SONYPI_EVENT_JOGDIAL_FAST_DOWN },
1240         { 0x5e, SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED },
1241         { 0x42, SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED },
1242         { 0x1d, SONYPI_EVENT_JOGDIAL_VFAST_UP },
1243         { 0x03, SONYPI_EVENT_JOGDIAL_VFAST_DOWN },
1244         { 0x5d, SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED },
1245         { 0x43, SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED },
1246         { 0x40, SONYPI_EVENT_JOGDIAL_PRESSED },
1247         { 0, 0 }
1248 };
1249
1250 /* The set of possible capture button events */
1251 static struct sonypi_event sonypi_captureev[] = {
1252         { 0x05, SONYPI_EVENT_CAPTURE_PARTIALPRESSED },
1253         { 0x07, SONYPI_EVENT_CAPTURE_PRESSED },
1254         { 0x01, SONYPI_EVENT_CAPTURE_PARTIALRELEASED },
1255         { 0, 0 }
1256 };
1257
1258 /* The set of possible fnkeys events */
1259 static struct sonypi_event sonypi_fnkeyev[] = {
1260         { 0x10, SONYPI_EVENT_FNKEY_ESC },
1261         { 0x11, SONYPI_EVENT_FNKEY_F1 },
1262         { 0x12, SONYPI_EVENT_FNKEY_F2 },
1263         { 0x13, SONYPI_EVENT_FNKEY_F3 },
1264         { 0x14, SONYPI_EVENT_FNKEY_F4 },
1265         { 0x15, SONYPI_EVENT_FNKEY_F5 },
1266         { 0x16, SONYPI_EVENT_FNKEY_F6 },
1267         { 0x17, SONYPI_EVENT_FNKEY_F7 },
1268         { 0x18, SONYPI_EVENT_FNKEY_F8 },
1269         { 0x19, SONYPI_EVENT_FNKEY_F9 },
1270         { 0x1a, SONYPI_EVENT_FNKEY_F10 },
1271         { 0x1b, SONYPI_EVENT_FNKEY_F11 },
1272         { 0x1c, SONYPI_EVENT_FNKEY_F12 },
1273         { 0x1f, SONYPI_EVENT_FNKEY_RELEASED },
1274         { 0x21, SONYPI_EVENT_FNKEY_1 },
1275         { 0x22, SONYPI_EVENT_FNKEY_2 },
1276         { 0x31, SONYPI_EVENT_FNKEY_D },
1277         { 0x32, SONYPI_EVENT_FNKEY_E },
1278         { 0x33, SONYPI_EVENT_FNKEY_F },
1279         { 0x34, SONYPI_EVENT_FNKEY_S },
1280         { 0x35, SONYPI_EVENT_FNKEY_B },
1281         { 0x36, SONYPI_EVENT_FNKEY_ONLY },
1282         { 0, 0 }
1283 };
1284
1285 /* The set of possible program key events */
1286 static struct sonypi_event sonypi_pkeyev[] = {
1287         { 0x01, SONYPI_EVENT_PKEY_P1 },
1288         { 0x02, SONYPI_EVENT_PKEY_P2 },
1289         { 0x04, SONYPI_EVENT_PKEY_P3 },
1290         { 0x5c, SONYPI_EVENT_PKEY_P1 },
1291         { 0, 0 }
1292 };
1293
1294 /* The set of possible bluetooth events */
1295 static struct sonypi_event sonypi_blueev[] = {
1296         { 0x55, SONYPI_EVENT_BLUETOOTH_PRESSED },
1297         { 0x59, SONYPI_EVENT_BLUETOOTH_ON },
1298         { 0x5a, SONYPI_EVENT_BLUETOOTH_OFF },
1299         { 0, 0 }
1300 };
1301
1302 /* The set of possible wireless events */
1303 static struct sonypi_event sonypi_wlessev[] = {
1304         { 0x59, SONYPI_EVENT_WIRELESS_ON },
1305         { 0x5a, SONYPI_EVENT_WIRELESS_OFF },
1306         { 0, 0 }
1307 };
1308
1309 /* The set of possible back button events */
1310 static struct sonypi_event sonypi_backev[] = {
1311         { 0x20, SONYPI_EVENT_BACK_PRESSED },
1312         { 0, 0 }
1313 };
1314
1315 /* The set of possible help button events */
1316 static struct sonypi_event sonypi_helpev[] = {
1317         { 0x3b, SONYPI_EVENT_HELP_PRESSED },
1318         { 0, 0 }
1319 };
1320
1321
1322 /* The set of possible lid events */
1323 static struct sonypi_event sonypi_lidev[] = {
1324         { 0x51, SONYPI_EVENT_LID_CLOSED },
1325         { 0x50, SONYPI_EVENT_LID_OPENED },
1326         { 0, 0 }
1327 };
1328
1329 /* The set of possible zoom events */
1330 static struct sonypi_event sonypi_zoomev[] = {
1331         { 0x39, SONYPI_EVENT_ZOOM_PRESSED },
1332         { 0, 0 }
1333 };
1334
1335 /* The set of possible thumbphrase events */
1336 static struct sonypi_event sonypi_thumbphraseev[] = {
1337         { 0x3a, SONYPI_EVENT_THUMBPHRASE_PRESSED },
1338         { 0, 0 }
1339 };
1340
1341 /* The set of possible motioneye camera events */
1342 static struct sonypi_event sonypi_meyeev[] = {
1343         { 0x00, SONYPI_EVENT_MEYE_FACE },
1344         { 0x01, SONYPI_EVENT_MEYE_OPPOSITE },
1345         { 0, 0 }
1346 };
1347
1348 /* The set of possible memorystick events */
1349 static struct sonypi_event sonypi_memorystickev[] = {
1350         { 0x53, SONYPI_EVENT_MEMORYSTICK_INSERT },
1351         { 0x54, SONYPI_EVENT_MEMORYSTICK_EJECT },
1352         { 0, 0 }
1353 };
1354
1355 /* The set of possible battery events */
1356 static struct sonypi_event sonypi_batteryev[] = {
1357         { 0x20, SONYPI_EVENT_BATTERY_INSERT },
1358         { 0x30, SONYPI_EVENT_BATTERY_REMOVE },
1359         { 0, 0 }
1360 };
1361
1362 static struct sonypi_eventtypes {
1363         int                     model;
1364         u8                      data;
1365         unsigned long           mask;
1366         struct sonypi_event *   events;
1367 } sony_pic_eventtypes[] = {
1368         { SONYPI_DEVICE_TYPE1, 0, 0xffffffff, sonypi_releaseev },
1369         { SONYPI_DEVICE_TYPE1, 0x70, SONYPI_MEYE_MASK, sonypi_meyeev },
1370         { SONYPI_DEVICE_TYPE1, 0x30, SONYPI_LID_MASK, sonypi_lidev },
1371         { SONYPI_DEVICE_TYPE1, 0x60, SONYPI_CAPTURE_MASK, sonypi_captureev },
1372         { SONYPI_DEVICE_TYPE1, 0x10, SONYPI_JOGGER_MASK, sonypi_joggerev },
1373         { SONYPI_DEVICE_TYPE1, 0x20, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1374         { SONYPI_DEVICE_TYPE1, 0x30, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
1375         { SONYPI_DEVICE_TYPE1, 0x40, SONYPI_PKEY_MASK, sonypi_pkeyev },
1376         { SONYPI_DEVICE_TYPE1, 0x30, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1377         { SONYPI_DEVICE_TYPE1, 0x40, SONYPI_BATTERY_MASK, sonypi_batteryev },
1378
1379         { SONYPI_DEVICE_TYPE2, 0, 0xffffffff, sonypi_releaseev },
1380         { SONYPI_DEVICE_TYPE2, 0x38, SONYPI_LID_MASK, sonypi_lidev },
1381         { SONYPI_DEVICE_TYPE2, 0x11, SONYPI_JOGGER_MASK, sonypi_joggerev },
1382         { SONYPI_DEVICE_TYPE2, 0x61, SONYPI_CAPTURE_MASK, sonypi_captureev },
1383         { SONYPI_DEVICE_TYPE2, 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1384         { SONYPI_DEVICE_TYPE2, 0x31, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
1385         { SONYPI_DEVICE_TYPE2, 0x08, SONYPI_PKEY_MASK, sonypi_pkeyev },
1386         { SONYPI_DEVICE_TYPE2, 0x11, SONYPI_BACK_MASK, sonypi_backev },
1387         { SONYPI_DEVICE_TYPE2, 0x21, SONYPI_HELP_MASK, sonypi_helpev },
1388         { SONYPI_DEVICE_TYPE2, 0x21, SONYPI_ZOOM_MASK, sonypi_zoomev },
1389         { SONYPI_DEVICE_TYPE2, 0x20, SONYPI_THUMBPHRASE_MASK, sonypi_thumbphraseev },
1390         { SONYPI_DEVICE_TYPE2, 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1391         { SONYPI_DEVICE_TYPE2, 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
1392         { SONYPI_DEVICE_TYPE2, 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
1393
1394         { SONYPI_DEVICE_TYPE3, 0, 0xffffffff, sonypi_releaseev },
1395         { SONYPI_DEVICE_TYPE3, 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1396         { SONYPI_DEVICE_TYPE3, 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
1397         { SONYPI_DEVICE_TYPE3, 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1398         { SONYPI_DEVICE_TYPE3, 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
1399         { SONYPI_DEVICE_TYPE3, 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
1400         { 0 }
1401 };
1402
1403 static int sony_pic_detect_device_type(void)
1404 {
1405         struct pci_dev *pcidev;
1406         int model = 0;
1407
1408         if ((pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1409                                      PCI_DEVICE_ID_INTEL_82371AB_3, NULL)))
1410                 model = SONYPI_DEVICE_TYPE1;
1411
1412         else if ((pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1413                                           PCI_DEVICE_ID_INTEL_ICH6_1, NULL)))
1414                 model = SONYPI_DEVICE_TYPE3;
1415
1416         else if ((pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1417                                           PCI_DEVICE_ID_INTEL_ICH7_1, NULL)))
1418                 model = SONYPI_DEVICE_TYPE3;
1419
1420         else
1421                 model = SONYPI_DEVICE_TYPE2;
1422
1423         if (pcidev)
1424                 pci_dev_put(pcidev);
1425
1426         printk(KERN_INFO DRV_PFX "detected Type%d model\n",
1427                         model == SONYPI_DEVICE_TYPE1 ? 1 :
1428                         model == SONYPI_DEVICE_TYPE2 ? 2 : 3);
1429         return model;
1430 }
1431
1432 #define ITERATIONS_LONG         10000
1433 #define ITERATIONS_SHORT        10
1434 #define wait_on_command(command, iterations) {                          \
1435         unsigned int n = iterations;                                    \
1436         while (--n && (command))                                        \
1437                 udelay(1);                                              \
1438         if (!n)                                                         \
1439                 dprintk("command failed at %s : %s (line %d)\n",        \
1440                                 __FILE__, __FUNCTION__, __LINE__);      \
1441 }
1442
1443 static u8 sony_pic_call1(u8 dev)
1444 {
1445         u8 v1, v2;
1446
1447         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
1448                         ITERATIONS_LONG);
1449         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
1450         v1 = inb_p(spic_dev.cur_ioport->io1.minimum + 4);
1451         v2 = inb_p(spic_dev.cur_ioport->io1.minimum);
1452         dprintk("sony_pic_call1: 0x%.4x\n", (v2 << 8) | v1);
1453         return v2;
1454 }
1455
1456 static u8 sony_pic_call2(u8 dev, u8 fn)
1457 {
1458         u8 v1;
1459
1460         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
1461                         ITERATIONS_LONG);
1462         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
1463         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
1464                         ITERATIONS_LONG);
1465         outb(fn, spic_dev.cur_ioport->io1.minimum);
1466         v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
1467         dprintk("sony_pic_call2: 0x%.4x\n", v1);
1468         return v1;
1469 }
1470
1471 static u8 sony_pic_call3(u8 dev, u8 fn, u8 v)
1472 {
1473         u8 v1;
1474
1475         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
1476         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
1477         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
1478         outb(fn, spic_dev.cur_ioport->io1.minimum);
1479         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
1480         outb(v, spic_dev.cur_ioport->io1.minimum);
1481         v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
1482         dprintk("sony_pic_call3: 0x%.4x\n", v1);
1483         return v1;
1484 }
1485
1486 /* camera tests and poweron/poweroff */
1487 #define SONYPI_CAMERA_PICTURE           5
1488 #define SONYPI_CAMERA_CONTROL           0x10
1489
1490 #define SONYPI_CAMERA_BRIGHTNESS                0
1491 #define SONYPI_CAMERA_CONTRAST                  1
1492 #define SONYPI_CAMERA_HUE                       2
1493 #define SONYPI_CAMERA_COLOR                     3
1494 #define SONYPI_CAMERA_SHARPNESS                 4
1495
1496 #define SONYPI_CAMERA_EXPOSURE_MASK             0xC
1497 #define SONYPI_CAMERA_WHITE_BALANCE_MASK        0x3
1498 #define SONYPI_CAMERA_PICTURE_MODE_MASK         0x30
1499 #define SONYPI_CAMERA_MUTE_MASK                 0x40
1500
1501 /* the rest don't need a loop until not 0xff */
1502 #define SONYPI_CAMERA_AGC                       6
1503 #define SONYPI_CAMERA_AGC_MASK                  0x30
1504 #define SONYPI_CAMERA_SHUTTER_MASK              0x7
1505
1506 #define SONYPI_CAMERA_SHUTDOWN_REQUEST          7
1507 #define SONYPI_CAMERA_CONTROL                   0x10
1508
1509 #define SONYPI_CAMERA_STATUS                    7
1510 #define SONYPI_CAMERA_STATUS_READY              0x2
1511 #define SONYPI_CAMERA_STATUS_POSITION           0x4
1512
1513 #define SONYPI_DIRECTION_BACKWARDS              0x4
1514
1515 #define SONYPI_CAMERA_REVISION                  8
1516 #define SONYPI_CAMERA_ROMVERSION                9
1517
1518 static int __sony_pic_camera_ready(void)
1519 {
1520         u8 v;
1521
1522         v = sony_pic_call2(0x8f, SONYPI_CAMERA_STATUS);
1523         return (v != 0xff && (v & SONYPI_CAMERA_STATUS_READY));
1524 }
1525
1526 static int __sony_pic_camera_off(void)
1527 {
1528         if (!camera) {
1529                 printk(KERN_WARNING DRV_PFX "camera control not enabled\n");
1530                 return -ENODEV;
1531         }
1532
1533         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE,
1534                                 SONYPI_CAMERA_MUTE_MASK),
1535                         ITERATIONS_SHORT);
1536
1537         if (spic_dev.camera_power) {
1538                 sony_pic_call2(0x91, 0);
1539                 spic_dev.camera_power = 0;
1540         }
1541         return 0;
1542 }
1543
1544 static int __sony_pic_camera_on(void)
1545 {
1546         int i, j, x;
1547
1548         if (!camera) {
1549                 printk(KERN_WARNING DRV_PFX "camera control not enabled\n");
1550                 return -ENODEV;
1551         }
1552
1553         if (spic_dev.camera_power)
1554                 return 0;
1555
1556         for (j = 5; j > 0; j--) {
1557
1558                 for (x = 0; x < 100 && sony_pic_call2(0x91, 0x1); x++)
1559                         msleep(10);
1560                 sony_pic_call1(0x93);
1561
1562                 for (i = 400; i > 0; i--) {
1563                         if (__sony_pic_camera_ready())
1564                                 break;
1565                         msleep(10);
1566                 }
1567                 if (i)
1568                         break;
1569         }
1570
1571         if (j == 0) {
1572                 printk(KERN_WARNING DRV_PFX "failed to power on camera\n");
1573                 return -ENODEV;
1574         }
1575
1576         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTROL,
1577                                 0x5a),
1578                         ITERATIONS_SHORT);
1579
1580         spic_dev.camera_power = 1;
1581         return 0;
1582 }
1583
1584 /* External camera command (exported to the motion eye v4l driver) */
1585 int sony_pic_camera_command(int command, u8 value)
1586 {
1587         if (!camera)
1588                 return -EIO;
1589
1590         mutex_lock(&spic_dev.lock);
1591
1592         switch (command) {
1593         case SONY_PIC_COMMAND_SETCAMERA:
1594                 if (value)
1595                         __sony_pic_camera_on();
1596                 else
1597                         __sony_pic_camera_off();
1598                 break;
1599         case SONY_PIC_COMMAND_SETCAMERABRIGHTNESS:
1600                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_BRIGHTNESS, value),
1601                                 ITERATIONS_SHORT);
1602                 break;
1603         case SONY_PIC_COMMAND_SETCAMERACONTRAST:
1604                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTRAST, value),
1605                                 ITERATIONS_SHORT);
1606                 break;
1607         case SONY_PIC_COMMAND_SETCAMERAHUE:
1608                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_HUE, value),
1609                                 ITERATIONS_SHORT);
1610                 break;
1611         case SONY_PIC_COMMAND_SETCAMERACOLOR:
1612                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_COLOR, value),
1613                                 ITERATIONS_SHORT);
1614                 break;
1615         case SONY_PIC_COMMAND_SETCAMERASHARPNESS:
1616                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_SHARPNESS, value),
1617                                 ITERATIONS_SHORT);
1618                 break;
1619         case SONY_PIC_COMMAND_SETCAMERAPICTURE:
1620                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE, value),
1621                                 ITERATIONS_SHORT);
1622                 break;
1623         case SONY_PIC_COMMAND_SETCAMERAAGC:
1624                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_AGC, value),
1625                                 ITERATIONS_SHORT);
1626                 break;
1627         default:
1628                 printk(KERN_ERR DRV_PFX "sony_pic_camera_command invalid: %d\n",
1629                        command);
1630                 break;
1631         }
1632         mutex_unlock(&spic_dev.lock);
1633         return 0;
1634 }
1635 EXPORT_SYMBOL(sony_pic_camera_command);
1636
1637 /* gprs/edge modem (SZ460N and SZ210P), thanks to Joshua Wise */
1638 static void sony_pic_set_wwanpower(u8 state)
1639 {
1640         state = !!state;
1641         mutex_lock(&spic_dev.lock);
1642         if (spic_dev.wwan_power == state) {
1643                 mutex_unlock(&spic_dev.lock);
1644                 return;
1645         }
1646         sony_pic_call2(0xB0, state);
1647         spic_dev.wwan_power = state;
1648         mutex_unlock(&spic_dev.lock);
1649 }
1650
1651 static ssize_t sony_pic_wwanpower_store(struct device *dev,
1652                 struct device_attribute *attr,
1653                 const char *buffer, size_t count)
1654 {
1655         unsigned long value;
1656         if (count > 31)
1657                 return -EINVAL;
1658
1659         value = simple_strtoul(buffer, NULL, 10);
1660         sony_pic_set_wwanpower(value);
1661
1662         return count;
1663 }
1664
1665 static ssize_t sony_pic_wwanpower_show(struct device *dev,
1666                 struct device_attribute *attr, char *buffer)
1667 {
1668         ssize_t count;
1669         mutex_lock(&spic_dev.lock);
1670         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.wwan_power);
1671         mutex_unlock(&spic_dev.lock);
1672         return count;
1673 }
1674
1675 /* bluetooth subsystem power state */
1676 static void __sony_pic_set_bluetoothpower(u8 state)
1677 {
1678         state = !!state;
1679         if (spic_dev.bluetooth_power == state)
1680                 return;
1681         sony_pic_call2(0x96, state);
1682         sony_pic_call1(0x82);
1683         spic_dev.bluetooth_power = state;
1684 }
1685
1686 static ssize_t sony_pic_bluetoothpower_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         mutex_lock(&spic_dev.lock);
1696         __sony_pic_set_bluetoothpower(value);
1697         mutex_unlock(&spic_dev.lock);
1698
1699         return count;
1700 }
1701
1702 static ssize_t sony_pic_bluetoothpower_show(struct device *dev,
1703                 struct device_attribute *attr, char *buffer)
1704 {
1705         ssize_t count = 0;
1706         mutex_lock(&spic_dev.lock);
1707         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.bluetooth_power);
1708         mutex_unlock(&spic_dev.lock);
1709         return count;
1710 }
1711
1712 /* fan speed */
1713 /* FAN0 information (reverse engineered from ACPI tables) */
1714 #define SONY_PIC_FAN0_STATUS    0x93
1715 static int sony_pic_set_fanspeed(unsigned long value)
1716 {
1717         return ec_write(SONY_PIC_FAN0_STATUS, value);
1718 }
1719
1720 static int sony_pic_get_fanspeed(u8 *value)
1721 {
1722         return ec_read(SONY_PIC_FAN0_STATUS, value);
1723 }
1724
1725 static ssize_t sony_pic_fanspeed_store(struct device *dev,
1726                 struct device_attribute *attr,
1727                 const char *buffer, size_t count)
1728 {
1729         unsigned long value;
1730         if (count > 31)
1731                 return -EINVAL;
1732
1733         value = simple_strtoul(buffer, NULL, 10);
1734         if (sony_pic_set_fanspeed(value))
1735                 return -EIO;
1736
1737         return count;
1738 }
1739
1740 static ssize_t sony_pic_fanspeed_show(struct device *dev,
1741                 struct device_attribute *attr, char *buffer)
1742 {
1743         u8 value = 0;
1744         if (sony_pic_get_fanspeed(&value))
1745                 return -EIO;
1746
1747         return snprintf(buffer, PAGE_SIZE, "%d\n", value);
1748 }
1749
1750 #define SPIC_ATTR(_name, _mode)                                 \
1751 struct device_attribute spic_attr_##_name = __ATTR(_name,       \
1752                 _mode, sony_pic_## _name ##_show,               \
1753                 sony_pic_## _name ##_store)
1754
1755 static SPIC_ATTR(bluetoothpower, 0644);
1756 static SPIC_ATTR(wwanpower, 0644);
1757 static SPIC_ATTR(fanspeed, 0644);
1758
1759 static struct attribute *spic_attributes[] = {
1760         &spic_attr_bluetoothpower.attr,
1761         &spic_attr_wwanpower.attr,
1762         &spic_attr_fanspeed.attr,
1763         NULL
1764 };
1765
1766 static struct attribute_group spic_attribute_group = {
1767         .attrs = spic_attributes
1768 };
1769
1770 /******** SONYPI compatibility **********/
1771 #ifdef CONFIG_SONYPI_COMPAT
1772
1773 /* battery / brightness / temperature  addresses */
1774 #define SONYPI_BAT_FLAGS        0x81
1775 #define SONYPI_LCD_LIGHT        0x96
1776 #define SONYPI_BAT1_PCTRM       0xa0
1777 #define SONYPI_BAT1_LEFT        0xa2
1778 #define SONYPI_BAT1_MAXRT       0xa4
1779 #define SONYPI_BAT2_PCTRM       0xa8
1780 #define SONYPI_BAT2_LEFT        0xaa
1781 #define SONYPI_BAT2_MAXRT       0xac
1782 #define SONYPI_BAT1_MAXTK       0xb0
1783 #define SONYPI_BAT1_FULL        0xb2
1784 #define SONYPI_BAT2_MAXTK       0xb8
1785 #define SONYPI_BAT2_FULL        0xba
1786 #define SONYPI_TEMP_STATUS      0xC1
1787
1788 struct sonypi_compat_s {
1789         struct fasync_struct    *fifo_async;
1790         struct kfifo            *fifo;
1791         spinlock_t              fifo_lock;
1792         wait_queue_head_t       fifo_proc_list;
1793         atomic_t                open_count;
1794 };
1795 static struct sonypi_compat_s sonypi_compat = {
1796         .open_count = ATOMIC_INIT(0),
1797 };
1798
1799 static int sonypi_misc_fasync(int fd, struct file *filp, int on)
1800 {
1801         int retval;
1802
1803         retval = fasync_helper(fd, filp, on, &sonypi_compat.fifo_async);
1804         if (retval < 0)
1805                 return retval;
1806         return 0;
1807 }
1808
1809 static int sonypi_misc_release(struct inode *inode, struct file *file)
1810 {
1811         sonypi_misc_fasync(-1, file, 0);
1812         atomic_dec(&sonypi_compat.open_count);
1813         return 0;
1814 }
1815
1816 static int sonypi_misc_open(struct inode *inode, struct file *file)
1817 {
1818         /* Flush input queue on first open */
1819         if (atomic_inc_return(&sonypi_compat.open_count) == 1)
1820                 kfifo_reset(sonypi_compat.fifo);
1821         return 0;
1822 }
1823
1824 static ssize_t sonypi_misc_read(struct file *file, char __user *buf,
1825                                 size_t count, loff_t *pos)
1826 {
1827         ssize_t ret;
1828         unsigned char c;
1829
1830         if ((kfifo_len(sonypi_compat.fifo) == 0) &&
1831             (file->f_flags & O_NONBLOCK))
1832                 return -EAGAIN;
1833
1834         ret = wait_event_interruptible(sonypi_compat.fifo_proc_list,
1835                                        kfifo_len(sonypi_compat.fifo) != 0);
1836         if (ret)
1837                 return ret;
1838
1839         while (ret < count &&
1840                (kfifo_get(sonypi_compat.fifo, &c, sizeof(c)) == sizeof(c))) {
1841                 if (put_user(c, buf++))
1842                         return -EFAULT;
1843                 ret++;
1844         }
1845
1846         if (ret > 0) {
1847                 struct inode *inode = file->f_path.dentry->d_inode;
1848                 inode->i_atime = current_fs_time(inode->i_sb);
1849         }
1850
1851         return ret;
1852 }
1853
1854 static unsigned int sonypi_misc_poll(struct file *file, poll_table *wait)
1855 {
1856         poll_wait(file, &sonypi_compat.fifo_proc_list, wait);
1857         if (kfifo_len(sonypi_compat.fifo))
1858                 return POLLIN | POLLRDNORM;
1859         return 0;
1860 }
1861
1862 static int ec_read16(u8 addr, u16 *value)
1863 {
1864         u8 val_lb, val_hb;
1865         if (ec_read(addr, &val_lb))
1866                 return -1;
1867         if (ec_read(addr + 1, &val_hb))
1868                 return -1;
1869         *value = val_lb | (val_hb << 8);
1870         return 0;
1871 }
1872
1873 static int sonypi_misc_ioctl(struct inode *ip, struct file *fp,
1874                              unsigned int cmd, unsigned long arg)
1875 {
1876         int ret = 0;
1877         void __user *argp = (void __user *)arg;
1878         u8 val8;
1879         u16 val16;
1880         int value;
1881
1882         mutex_lock(&spic_dev.lock);
1883         switch (cmd) {
1884         case SONYPI_IOCGBRT:
1885                 if (sony_backlight_device == NULL) {
1886                         ret = -EIO;
1887                         break;
1888                 }
1889                 if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value)) {
1890                         ret = -EIO;
1891                         break;
1892                 }
1893                 val8 = ((value & 0xff) - 1) << 5;
1894                 if (copy_to_user(argp, &val8, sizeof(val8)))
1895                                 ret = -EFAULT;
1896                 break;
1897         case SONYPI_IOCSBRT:
1898                 if (sony_backlight_device == NULL) {
1899                         ret = -EIO;
1900                         break;
1901                 }
1902                 if (copy_from_user(&val8, argp, sizeof(val8))) {
1903                         ret = -EFAULT;
1904                         break;
1905                 }
1906                 if (acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
1907                                 (val8 >> 5) + 1, NULL)) {
1908                         ret = -EIO;
1909                         break;
1910                 }
1911                 /* sync the backlight device status */
1912                 sony_backlight_device->props.brightness =
1913                     sony_backlight_get_brightness(sony_backlight_device);
1914                 break;
1915         case SONYPI_IOCGBAT1CAP:
1916                 if (ec_read16(SONYPI_BAT1_FULL, &val16)) {
1917                         ret = -EIO;
1918                         break;
1919                 }
1920                 if (copy_to_user(argp, &val16, sizeof(val16)))
1921                         ret = -EFAULT;
1922                 break;
1923         case SONYPI_IOCGBAT1REM:
1924                 if (ec_read16(SONYPI_BAT1_LEFT, &val16)) {
1925                         ret = -EIO;
1926                         break;
1927                 }
1928                 if (copy_to_user(argp, &val16, sizeof(val16)))
1929                         ret = -EFAULT;
1930                 break;
1931         case SONYPI_IOCGBAT2CAP:
1932                 if (ec_read16(SONYPI_BAT2_FULL, &val16)) {
1933                         ret = -EIO;
1934                         break;
1935                 }
1936                 if (copy_to_user(argp, &val16, sizeof(val16)))
1937                         ret = -EFAULT;
1938                 break;
1939         case SONYPI_IOCGBAT2REM:
1940                 if (ec_read16(SONYPI_BAT2_LEFT, &val16)) {
1941                         ret = -EIO;
1942                         break;
1943                 }
1944                 if (copy_to_user(argp, &val16, sizeof(val16)))
1945                         ret = -EFAULT;
1946                 break;
1947         case SONYPI_IOCGBATFLAGS:
1948                 if (ec_read(SONYPI_BAT_FLAGS, &val8)) {
1949                         ret = -EIO;
1950                         break;
1951                 }
1952                 val8 &= 0x07;
1953                 if (copy_to_user(argp, &val8, sizeof(val8)))
1954                         ret = -EFAULT;
1955                 break;
1956         case SONYPI_IOCGBLUE:
1957                 val8 = spic_dev.bluetooth_power;
1958                 if (copy_to_user(argp, &val8, sizeof(val8)))
1959                         ret = -EFAULT;
1960                 break;
1961         case SONYPI_IOCSBLUE:
1962                 if (copy_from_user(&val8, argp, sizeof(val8))) {
1963                         ret = -EFAULT;
1964                         break;
1965                 }
1966                 __sony_pic_set_bluetoothpower(val8);
1967                 break;
1968         /* FAN Controls */
1969         case SONYPI_IOCGFAN:
1970                 if (sony_pic_get_fanspeed(&val8)) {
1971                         ret = -EIO;
1972                         break;
1973                 }
1974                 if (copy_to_user(argp, &val8, sizeof(val8)))
1975                         ret = -EFAULT;
1976                 break;
1977         case SONYPI_IOCSFAN:
1978                 if (copy_from_user(&val8, argp, sizeof(val8))) {
1979                         ret = -EFAULT;
1980                         break;
1981                 }
1982                 if (sony_pic_set_fanspeed(val8))
1983                         ret = -EIO;
1984                 break;
1985         /* GET Temperature (useful under APM) */
1986         case SONYPI_IOCGTEMP:
1987                 if (ec_read(SONYPI_TEMP_STATUS, &val8)) {
1988                         ret = -EIO;
1989                         break;
1990                 }
1991                 if (copy_to_user(argp, &val8, sizeof(val8)))
1992                         ret = -EFAULT;
1993                 break;
1994         default:
1995                 ret = -EINVAL;
1996         }
1997         mutex_unlock(&spic_dev.lock);
1998         return ret;
1999 }
2000
2001 static const struct file_operations sonypi_misc_fops = {
2002         .owner          = THIS_MODULE,
2003         .read           = sonypi_misc_read,
2004         .poll           = sonypi_misc_poll,
2005         .open           = sonypi_misc_open,
2006         .release        = sonypi_misc_release,
2007         .fasync         = sonypi_misc_fasync,
2008         .ioctl          = sonypi_misc_ioctl,
2009 };
2010
2011 static struct miscdevice sonypi_misc_device = {
2012         .minor          = MISC_DYNAMIC_MINOR,
2013         .name           = "sonypi",
2014         .fops           = &sonypi_misc_fops,
2015 };
2016
2017 static void sonypi_compat_report_event(u8 event)
2018 {
2019         kfifo_put(sonypi_compat.fifo, (unsigned char *)&event, sizeof(event));
2020         kill_fasync(&sonypi_compat.fifo_async, SIGIO, POLL_IN);
2021         wake_up_interruptible(&sonypi_compat.fifo_proc_list);
2022 }
2023
2024 static int sonypi_compat_init(void)
2025 {
2026         int error;
2027
2028         spin_lock_init(&sonypi_compat.fifo_lock);
2029         sonypi_compat.fifo = kfifo_alloc(SONY_LAPTOP_BUF_SIZE, GFP_KERNEL,
2030                                          &sonypi_compat.fifo_lock);
2031         if (IS_ERR(sonypi_compat.fifo)) {
2032                 printk(KERN_ERR DRV_PFX "kfifo_alloc failed\n");
2033                 return PTR_ERR(sonypi_compat.fifo);
2034         }
2035
2036         init_waitqueue_head(&sonypi_compat.fifo_proc_list);
2037
2038         if (minor != -1)
2039                 sonypi_misc_device.minor = minor;
2040         error = misc_register(&sonypi_misc_device);
2041         if (error) {
2042                 printk(KERN_ERR DRV_PFX "misc_register failed\n");
2043                 goto err_free_kfifo;
2044         }
2045         if (minor == -1)
2046                 printk(KERN_INFO DRV_PFX "device allocated minor is %d\n",
2047                        sonypi_misc_device.minor);
2048
2049         return 0;
2050
2051 err_free_kfifo:
2052         kfifo_free(sonypi_compat.fifo);
2053         return error;
2054 }
2055
2056 static void sonypi_compat_exit(void)
2057 {
2058         misc_deregister(&sonypi_misc_device);
2059         kfifo_free(sonypi_compat.fifo);
2060 }
2061 #else
2062 static int sonypi_compat_init(void) { return 0; }
2063 static void sonypi_compat_exit(void) { }
2064 static void sonypi_compat_report_event(u8 event) { }
2065 #endif /* CONFIG_SONYPI_COMPAT */
2066
2067 /*
2068  * ACPI callbacks
2069  */
2070 static acpi_status
2071 sony_pic_read_possible_resource(struct acpi_resource *resource, void *context)
2072 {
2073         u32 i;
2074         struct sony_pic_dev *dev = (struct sony_pic_dev *)context;
2075
2076         switch (resource->type) {
2077         case ACPI_RESOURCE_TYPE_START_DEPENDENT:
2078                 {
2079                         /* start IO enumeration */
2080                         struct sony_pic_ioport *ioport = kzalloc(sizeof(*ioport), GFP_KERNEL);
2081                         if (!ioport)
2082                                 return AE_ERROR;
2083
2084                         list_add(&ioport->list, &dev->ioports);
2085                         return AE_OK;
2086                 }
2087
2088         case ACPI_RESOURCE_TYPE_END_DEPENDENT:
2089                 /* end IO enumeration */
2090                 return AE_OK;
2091
2092         case ACPI_RESOURCE_TYPE_IRQ:
2093                 {
2094                         struct acpi_resource_irq *p = &resource->data.irq;
2095                         struct sony_pic_irq *interrupt = NULL;
2096                         if (!p || !p->interrupt_count) {
2097                                 /*
2098                                  * IRQ descriptors may have no IRQ# bits set,
2099                                  * particularly those those w/ _STA disabled
2100                                  */
2101                                 dprintk("Blank IRQ resource\n");
2102                                 return AE_OK;
2103                         }
2104                         for (i = 0; i < p->interrupt_count; i++) {
2105                                 if (!p->interrupts[i]) {
2106                                         printk(KERN_WARNING DRV_PFX
2107                                                         "Invalid IRQ %d\n",
2108                                                         p->interrupts[i]);
2109                                         continue;
2110                                 }
2111                                 interrupt = kzalloc(sizeof(*interrupt),
2112                                                 GFP_KERNEL);
2113                                 if (!interrupt)
2114                                         return AE_ERROR;
2115
2116                                 list_add(&interrupt->list, &dev->interrupts);
2117                                 interrupt->irq.triggering = p->triggering;
2118                                 interrupt->irq.polarity = p->polarity;
2119                                 interrupt->irq.sharable = p->sharable;
2120                                 interrupt->irq.interrupt_count = 1;
2121                                 interrupt->irq.interrupts[0] = p->interrupts[i];
2122                         }
2123                         return AE_OK;
2124                 }
2125         case ACPI_RESOURCE_TYPE_IO:
2126                 {
2127                         struct acpi_resource_io *io = &resource->data.io;
2128                         struct sony_pic_ioport *ioport =
2129                                 list_first_entry(&dev->ioports, struct sony_pic_ioport, list);
2130                         if (!io) {
2131                                 dprintk("Blank IO resource\n");
2132                                 return AE_OK;
2133                         }
2134
2135                         if (!ioport->io1.minimum) {
2136                                 memcpy(&ioport->io1, io, sizeof(*io));
2137                                 dprintk("IO1 at 0x%.4x (0x%.2x)\n", ioport->io1.minimum,
2138                                                 ioport->io1.address_length);
2139                         }
2140                         else if (!ioport->io2.minimum) {
2141                                 memcpy(&ioport->io2, io, sizeof(*io));
2142                                 dprintk("IO2 at 0x%.4x (0x%.2x)\n", ioport->io2.minimum,
2143                                                 ioport->io2.address_length);
2144                         }
2145                         else {
2146                                 printk(KERN_ERR DRV_PFX "Unknown SPIC Type, more than 2 IO Ports\n");
2147                                 return AE_ERROR;
2148                         }
2149                         return AE_OK;
2150                 }
2151         default:
2152                 dprintk("Resource %d isn't an IRQ nor an IO port\n",
2153                                 resource->type);
2154
2155         case ACPI_RESOURCE_TYPE_END_TAG:
2156                 return AE_OK;
2157         }
2158         return AE_CTRL_TERMINATE;
2159 }
2160
2161 static int sony_pic_possible_resources(struct acpi_device *device)
2162 {
2163         int result = 0;
2164         acpi_status status = AE_OK;
2165
2166         if (!device)
2167                 return -EINVAL;
2168
2169         /* get device status */
2170         /* see acpi_pci_link_get_current acpi_pci_link_get_possible */
2171         dprintk("Evaluating _STA\n");
2172         result = acpi_bus_get_status(device);
2173         if (result) {
2174                 printk(KERN_WARNING DRV_PFX "Unable to read status\n");
2175                 goto end;
2176         }
2177
2178         if (!device->status.enabled)
2179                 dprintk("Device disabled\n");
2180         else
2181                 dprintk("Device enabled\n");
2182
2183         /*
2184          * Query and parse 'method'
2185          */
2186         dprintk("Evaluating %s\n", METHOD_NAME__PRS);
2187         status = acpi_walk_resources(device->handle, METHOD_NAME__PRS,
2188                         sony_pic_read_possible_resource, &spic_dev);
2189         if (ACPI_FAILURE(status)) {
2190                 printk(KERN_WARNING DRV_PFX
2191                                 "Failure evaluating %s\n",
2192                                 METHOD_NAME__PRS);
2193                 result = -ENODEV;
2194         }
2195 end:
2196         return result;
2197 }
2198
2199 /*
2200  *  Disable the spic device by calling its _DIS method
2201  */
2202 static int sony_pic_disable(struct acpi_device *device)
2203 {
2204         if (ACPI_FAILURE(acpi_evaluate_object(device->handle,
2205                         "_DIS", NULL, NULL)))
2206                 return -ENXIO;
2207
2208         dprintk("Device disabled\n");
2209         return 0;
2210 }
2211
2212
2213 /*
2214  *  Based on drivers/acpi/pci_link.c:acpi_pci_link_set
2215  *
2216  *  Call _SRS to set current resources
2217  */
2218 static int sony_pic_enable(struct acpi_device *device,
2219                 struct sony_pic_ioport *ioport, struct sony_pic_irq *irq)
2220 {
2221         acpi_status status;
2222         int result = 0;
2223         /* Type 1 resource layout is:
2224          *    IO
2225          *    IO
2226          *    IRQNoFlags
2227          *    End
2228          *
2229          * Type 2 and 3 resource layout is:
2230          *    IO
2231          *    IRQNoFlags
2232          *    End
2233          */
2234         struct {
2235                 struct acpi_resource res1;
2236                 struct acpi_resource res2;
2237                 struct acpi_resource res3;
2238                 struct acpi_resource res4;
2239         } *resource;
2240         struct acpi_buffer buffer = { 0, NULL };
2241
2242         if (!ioport || !irq)
2243                 return -EINVAL;
2244
2245         /* init acpi_buffer */
2246         resource = kzalloc(sizeof(*resource) + 1, GFP_KERNEL);
2247         if (!resource)
2248                 return -ENOMEM;
2249
2250         buffer.length = sizeof(*resource) + 1;
2251         buffer.pointer = resource;
2252
2253         /* setup Type 1 resources */
2254         if (spic_dev.model == SONYPI_DEVICE_TYPE1) {
2255
2256                 /* setup io resources */
2257                 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
2258                 resource->res1.length = sizeof(struct acpi_resource);
2259                 memcpy(&resource->res1.data.io, &ioport->io1,
2260                                 sizeof(struct acpi_resource_io));
2261
2262                 resource->res2.type = ACPI_RESOURCE_TYPE_IO;
2263                 resource->res2.length = sizeof(struct acpi_resource);
2264                 memcpy(&resource->res2.data.io, &ioport->io2,
2265                                 sizeof(struct acpi_resource_io));
2266
2267                 /* setup irq resource */
2268                 resource->res3.type = ACPI_RESOURCE_TYPE_IRQ;
2269                 resource->res3.length = sizeof(struct acpi_resource);
2270                 memcpy(&resource->res3.data.irq, &irq->irq,
2271                                 sizeof(struct acpi_resource_irq));
2272                 /* we requested a shared irq */
2273                 resource->res3.data.irq.sharable = ACPI_SHARED;
2274
2275                 resource->res4.type = ACPI_RESOURCE_TYPE_END_TAG;
2276
2277         }
2278         /* setup Type 2/3 resources */
2279         else {
2280                 /* setup io resource */
2281                 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
2282                 resource->res1.length = sizeof(struct acpi_resource);
2283                 memcpy(&resource->res1.data.io, &ioport->io1,
2284                                 sizeof(struct acpi_resource_io));
2285
2286                 /* setup irq resource */
2287                 resource->res2.type = ACPI_RESOURCE_TYPE_IRQ;
2288                 resource->res2.length = sizeof(struct acpi_resource);
2289                 memcpy(&resource->res2.data.irq, &irq->irq,
2290                                 sizeof(struct acpi_resource_irq));
2291                 /* we requested a shared irq */
2292                 resource->res2.data.irq.sharable = ACPI_SHARED;
2293
2294                 resource->res3.type = ACPI_RESOURCE_TYPE_END_TAG;
2295         }
2296
2297         /* Attempt to set the resource */
2298         dprintk("Evaluating _SRS\n");
2299         status = acpi_set_current_resources(device->handle, &buffer);
2300
2301         /* check for total failure */
2302         if (ACPI_FAILURE(status)) {
2303                 printk(KERN_ERR DRV_PFX "Error evaluating _SRS\n");
2304                 result = -ENODEV;
2305                 goto end;
2306         }
2307
2308         /* Necessary device initializations calls (from sonypi) */
2309         sony_pic_call1(0x82);
2310         sony_pic_call2(0x81, 0xff);
2311         sony_pic_call1(compat ? 0x92 : 0x82);
2312
2313 end:
2314         kfree(resource);
2315         return result;
2316 }
2317
2318 /*****************
2319  *
2320  * ISR: some event is available
2321  *
2322  *****************/
2323 static irqreturn_t sony_pic_irq(int irq, void *dev_id)
2324 {
2325         int i, j;
2326         u8 ev = 0;
2327         u8 data_mask = 0;
2328         u8 device_event = 0;
2329
2330         struct sony_pic_dev *dev = (struct sony_pic_dev *) dev_id;
2331
2332         ev = inb_p(dev->cur_ioport->io1.minimum);
2333         if (dev->cur_ioport->io2.minimum)
2334                 data_mask = inb_p(dev->cur_ioport->io2.minimum);
2335         else
2336                 data_mask = inb_p(dev->cur_ioport->io1.minimum + dev->evport_offset);
2337
2338         dprintk("event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
2339                         ev, data_mask, dev->cur_ioport->io1.minimum, dev->evport_offset);
2340
2341         if (ev == 0x00 || ev == 0xff)
2342                 return IRQ_HANDLED;
2343
2344         for (i = 0; sony_pic_eventtypes[i].model; i++) {
2345
2346                 if (spic_dev.model != sony_pic_eventtypes[i].model)
2347                         continue;
2348
2349                 if ((data_mask & sony_pic_eventtypes[i].data) !=
2350                     sony_pic_eventtypes[i].data)
2351                         continue;
2352
2353                 if (!(mask & sony_pic_eventtypes[i].mask))
2354                         continue;
2355
2356                 for (j = 0; sony_pic_eventtypes[i].events[j].event; j++) {
2357                         if (ev == sony_pic_eventtypes[i].events[j].data) {
2358                                 device_event =
2359                                         sony_pic_eventtypes[i].events[j].event;
2360                                 goto found;
2361                         }
2362                 }
2363         }
2364         return IRQ_HANDLED;
2365
2366 found:
2367         sony_laptop_report_input_event(device_event);
2368         acpi_bus_generate_proc_event(spic_dev.acpi_dev, 1, device_event);
2369         sonypi_compat_report_event(device_event);
2370
2371         return IRQ_HANDLED;
2372 }
2373
2374 /*****************
2375  *
2376  *  ACPI driver
2377  *
2378  *****************/
2379 static int sony_pic_remove(struct acpi_device *device, int type)
2380 {
2381         struct sony_pic_ioport *io, *tmp_io;
2382         struct sony_pic_irq *irq, *tmp_irq;
2383
2384         if (sony_pic_disable(device)) {
2385                 printk(KERN_ERR DRV_PFX "Couldn't disable device.\n");
2386                 return -ENXIO;
2387         }
2388
2389         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
2390         release_region(spic_dev.cur_ioport->io1.minimum,
2391                         spic_dev.cur_ioport->io1.address_length);
2392         if (spic_dev.cur_ioport->io2.minimum)
2393                 release_region(spic_dev.cur_ioport->io2.minimum,
2394                                 spic_dev.cur_ioport->io2.address_length);
2395
2396         sonypi_compat_exit();
2397
2398         sony_laptop_remove_input();
2399
2400         /* pf attrs */
2401         sysfs_remove_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
2402         sony_pf_remove();
2403
2404         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
2405                 list_del(&io->list);
2406                 kfree(io);
2407         }
2408         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
2409                 list_del(&irq->list);
2410                 kfree(irq);
2411         }
2412         spic_dev.cur_ioport = NULL;
2413         spic_dev.cur_irq = NULL;
2414
2415         dprintk(SONY_PIC_DRIVER_NAME " removed.\n");
2416         return 0;
2417 }
2418
2419 static int sony_pic_add(struct acpi_device *device)
2420 {
2421         int result;
2422         struct sony_pic_ioport *io, *tmp_io;
2423         struct sony_pic_irq *irq, *tmp_irq;
2424
2425         printk(KERN_INFO DRV_PFX "%s v%s.\n",
2426                 SONY_PIC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
2427
2428         spic_dev.acpi_dev = device;
2429         strcpy(acpi_device_class(device), "sony/hotkey");
2430         spic_dev.model = sony_pic_detect_device_type();
2431         mutex_init(&spic_dev.lock);
2432
2433         /* model specific characteristics */
2434         switch(spic_dev.model) {
2435                 case SONYPI_DEVICE_TYPE1:
2436                         spic_dev.evport_offset = SONYPI_TYPE1_OFFSET;
2437                         break;
2438                 case SONYPI_DEVICE_TYPE3:
2439                         spic_dev.evport_offset = SONYPI_TYPE3_OFFSET;
2440                         break;
2441                 case SONYPI_DEVICE_TYPE2:
2442                 default:
2443                         spic_dev.evport_offset = SONYPI_TYPE2_OFFSET;
2444                         break;
2445         }
2446
2447         /* read _PRS resources */
2448         result = sony_pic_possible_resources(device);
2449         if (result) {
2450                 printk(KERN_ERR DRV_PFX
2451                                 "Unabe to read possible resources.\n");
2452                 goto err_free_resources;
2453         }
2454
2455         /* setup input devices and helper fifo */
2456         result = sony_laptop_setup_input();
2457         if (result) {
2458                 printk(KERN_ERR DRV_PFX
2459                                 "Unabe to create input devices.\n");
2460                 goto err_free_resources;
2461         }
2462
2463         if (sonypi_compat_init())
2464                 goto err_remove_input;
2465
2466         /* request io port */
2467         list_for_each_entry_reverse(io, &spic_dev.ioports, list) {
2468                 if (request_region(io->io1.minimum, io->io1.address_length,
2469                                         "Sony Programable I/O Device")) {
2470                         dprintk("I/O port1: 0x%.4x (0x%.4x) + 0x%.2x\n",
2471                                         io->io1.minimum, io->io1.maximum,
2472                                         io->io1.address_length);
2473                         /* Type 1 have 2 ioports */
2474                         if (io->io2.minimum) {
2475                                 if (request_region(io->io2.minimum,
2476                                                 io->io2.address_length,
2477                                                 "Sony Programable I/O Device")) {
2478                                         dprintk("I/O port2: 0x%.4x (0x%.4x) + 0x%.2x\n",
2479                                                         io->io2.minimum, io->io2.maximum,
2480                                                         io->io2.address_length);
2481                                         spic_dev.cur_ioport = io;
2482                                         break;
2483                                 }
2484                                 else {
2485                                         dprintk("Unable to get I/O port2: "
2486                                                         "0x%.4x (0x%.4x) + 0x%.2x\n",
2487                                                         io->io2.minimum, io->io2.maximum,
2488                                                         io->io2.address_length);
2489                                         release_region(io->io1.minimum,
2490                                                         io->io1.address_length);
2491                                 }
2492                         }
2493                         else {
2494                                 spic_dev.cur_ioport = io;
2495                                 break;
2496                         }
2497                 }
2498         }
2499         if (!spic_dev.cur_ioport) {
2500                 printk(KERN_ERR DRV_PFX "Failed to request_region.\n");
2501                 result = -ENODEV;
2502                 goto err_remove_compat;
2503         }
2504
2505         /* request IRQ */
2506         list_for_each_entry_reverse(irq, &spic_dev.interrupts, list) {
2507                 if (!request_irq(irq->irq.interrupts[0], sony_pic_irq,
2508                                         IRQF_SHARED, "sony-laptop", &spic_dev)) {
2509                         dprintk("IRQ: %d - triggering: %d - "
2510                                         "polarity: %d - shr: %d\n",
2511                                         irq->irq.interrupts[0],
2512                                         irq->irq.triggering,
2513                                         irq->irq.polarity,
2514                                         irq->irq.sharable);
2515                         spic_dev.cur_irq = irq;
2516                         break;
2517                 }
2518         }
2519         if (!spic_dev.cur_irq) {
2520                 printk(KERN_ERR DRV_PFX "Failed to request_irq.\n");
2521                 result = -ENODEV;
2522                 goto err_release_region;
2523         }
2524
2525         /* set resource status _SRS */
2526         result = sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
2527         if (result) {
2528                 printk(KERN_ERR DRV_PFX "Couldn't enable device.\n");
2529                 goto err_free_irq;
2530         }
2531
2532         spic_dev.bluetooth_power = -1;
2533         /* create device attributes */
2534         result = sony_pf_add();
2535         if (result)
2536                 goto err_disable_device;
2537
2538         result = sysfs_create_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
2539         if (result)
2540                 goto err_remove_pf;
2541
2542         return 0;
2543
2544 err_remove_pf:
2545         sony_pf_remove();
2546
2547 err_disable_device:
2548         sony_pic_disable(device);
2549
2550 err_free_irq:
2551         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
2552
2553 err_release_region:
2554         release_region(spic_dev.cur_ioport->io1.minimum,
2555                         spic_dev.cur_ioport->io1.address_length);
2556         if (spic_dev.cur_ioport->io2.minimum)
2557                 release_region(spic_dev.cur_ioport->io2.minimum,
2558                                 spic_dev.cur_ioport->io2.address_length);
2559
2560 err_remove_compat:
2561         sonypi_compat_exit();
2562
2563 err_remove_input:
2564         sony_laptop_remove_input();
2565
2566 err_free_resources:
2567         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
2568                 list_del(&io->list);
2569                 kfree(io);
2570         }
2571         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
2572                 list_del(&irq->list);
2573                 kfree(irq);
2574         }
2575         spic_dev.cur_ioport = NULL;
2576         spic_dev.cur_irq = NULL;
2577
2578         return result;
2579 }
2580
2581 static int sony_pic_suspend(struct acpi_device *device, pm_message_t state)
2582 {
2583         if (sony_pic_disable(device))
2584                 return -ENXIO;
2585         return 0;
2586 }
2587
2588 static int sony_pic_resume(struct acpi_device *device)
2589 {
2590         sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
2591         return 0;
2592 }
2593
2594 static const struct acpi_device_id sony_pic_device_ids[] = {
2595         {SONY_PIC_HID, 0},
2596         {"", 0},
2597 };
2598
2599 static struct acpi_driver sony_pic_driver = {
2600         .name = SONY_PIC_DRIVER_NAME,
2601         .class = SONY_PIC_CLASS,
2602         .ids = sony_pic_device_ids,
2603         .owner = THIS_MODULE,
2604         .ops = {
2605                 .add = sony_pic_add,
2606                 .remove = sony_pic_remove,
2607                 .suspend = sony_pic_suspend,
2608                 .resume = sony_pic_resume,
2609                 },
2610 };
2611
2612 static struct dmi_system_id __initdata sonypi_dmi_table[] = {
2613         {
2614                 .ident = "Sony Vaio",
2615                 .matches = {
2616                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
2617                         DMI_MATCH(DMI_PRODUCT_NAME, "PCG-"),
2618                 },
2619         },
2620         {
2621                 .ident = "Sony Vaio",
2622                 .matches = {
2623                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
2624                         DMI_MATCH(DMI_PRODUCT_NAME, "VGN-"),
2625                 },
2626         },
2627         { }
2628 };
2629
2630 static int __init sony_laptop_init(void)
2631 {
2632         int result;
2633
2634         if (!no_spic && dmi_check_system(sonypi_dmi_table)) {
2635                 result = acpi_bus_register_driver(&sony_pic_driver);
2636                 if (result) {
2637                         printk(KERN_ERR DRV_PFX
2638                                         "Unable to register SPIC driver.");
2639                         goto out;
2640                 }
2641         }
2642
2643         result = acpi_bus_register_driver(&sony_nc_driver);
2644         if (result) {
2645                 printk(KERN_ERR DRV_PFX "Unable to register SNC driver.");
2646                 goto out_unregister_pic;
2647         }
2648
2649         return 0;
2650
2651 out_unregister_pic:
2652         if (!no_spic)
2653                 acpi_bus_unregister_driver(&sony_pic_driver);
2654 out:
2655         return result;
2656 }
2657
2658 static void __exit sony_laptop_exit(void)
2659 {
2660         acpi_bus_unregister_driver(&sony_nc_driver);
2661         if (!no_spic)
2662                 acpi_bus_unregister_driver(&sony_pic_driver);
2663 }
2664
2665 module_init(sony_laptop_init);
2666 module_exit(sony_laptop_exit);