git.oblomov.eu Git - linux-2.6/blob - drivers/platform/x86/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) 2007-2009 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 #include <linux/rfkill.h>
  67 #ifdef CONFIG_SONYPI_COMPAT
  68 #include <linux/poll.h>
  69 #include <linux/miscdevice.h>
  70 #endif
  71
  72 #define DRV_PFX                 "sony-laptop: "
  73 #define dprintk(msg...)         do {                    \
  74         if (debug) printk(KERN_WARNING DRV_PFX  msg);   \
  75 } while (0)
  76
  77 #define SONY_LAPTOP_DRIVER_VERSION      "0.6"
  78
  79 #define SONY_NC_CLASS           "sony-nc"
  80 #define SONY_NC_HID             "SNY5001"
  81 #define SONY_NC_DRIVER_NAME     "Sony Notebook Control Driver"
  82
  83 #define SONY_PIC_CLASS          "sony-pic"
  84 #define SONY_PIC_HID            "SNY6001"
  85 #define SONY_PIC_DRIVER_NAME    "Sony Programmable IO Control Driver"
  86
  87 MODULE_AUTHOR("Stelian Pop, Mattia Dongili");
  88 MODULE_DESCRIPTION("Sony laptop extras driver (SPIC and SNC ACPI device)");
  89 MODULE_LICENSE("GPL");
  90 MODULE_VERSION(SONY_LAPTOP_DRIVER_VERSION);
  91
  92 static int debug;
  93 module_param(debug, int, 0);
  94 MODULE_PARM_DESC(debug, "set this to 1 (and RTFM) if you want to help "
  95                  "the development of this driver");
  96
  97 static int no_spic;             /* = 0 */
  98 module_param(no_spic, int, 0444);
  99 MODULE_PARM_DESC(no_spic,
 100                  "set this if you don't want to enable the SPIC device");
 101
 102 static int compat;              /* = 0 */
 103 module_param(compat, int, 0444);
 104 MODULE_PARM_DESC(compat,
 105                  "set this if you want to enable backward compatibility mode");
 106
 107 static unsigned long mask = 0xffffffff;
 108 module_param(mask, ulong, 0644);
 109 MODULE_PARM_DESC(mask,
 110                  "set this to the mask of event you want to enable (see doc)");
 111
 112 static int camera;              /* = 0 */
 113 module_param(camera, int, 0444);
 114 MODULE_PARM_DESC(camera,
 115                  "set this to 1 to enable Motion Eye camera controls "
 116                  "(only use it if you have a C1VE or C1VN model)");
 117
 118 #ifdef CONFIG_SONYPI_COMPAT
 119 static int minor = -1;
 120 module_param(minor, int, 0);
 121 MODULE_PARM_DESC(minor,
 122                  "minor number of the misc device for the SPIC compatibility code, "
 123                  "default is -1 (automatic)");
 124 #endif
 125
 126 enum sony_nc_rfkill {
 127         SONY_WIFI,
 128         SONY_BLUETOOTH,
 129         SONY_WWAN,
 130         SONY_WIMAX,
 131         N_SONY_RFKILL,
 132 };
 133
 134 static struct rfkill *sony_rfkill_devices[N_SONY_RFKILL];
 135 static int sony_rfkill_address[N_SONY_RFKILL] = {0x300, 0x500, 0x700, 0x900};
 136 static void sony_nc_rfkill_update(void);
 137
 138 /*********** Input Devices ***********/
 139
 140 #define SONY_LAPTOP_BUF_SIZE    128
 141 struct sony_laptop_input_s {
 142         atomic_t                users;
 143         struct input_dev        *jog_dev;
 144         struct input_dev        *key_dev;
 145         struct kfifo            *fifo;
 146         spinlock_t              fifo_lock;
 147         struct workqueue_struct *wq;
 148 };
 149
 150 static struct sony_laptop_input_s sony_laptop_input = {
 151         .users = ATOMIC_INIT(0),
 152 };
 153
 154 struct sony_laptop_keypress {
 155         struct input_dev *dev;
 156         int key;
 157 };
 158
 159 /* Correspondance table between sonypi events
 160  * and input layer indexes in the keymap
 161  */
 162 static int sony_laptop_input_index[] = {
 163         -1,     /*  0 no event */
 164         -1,     /*  1 SONYPI_EVENT_JOGDIAL_DOWN */
 165         -1,     /*  2 SONYPI_EVENT_JOGDIAL_UP */
 166         -1,     /*  3 SONYPI_EVENT_JOGDIAL_DOWN_PRESSED */
 167         -1,     /*  4 SONYPI_EVENT_JOGDIAL_UP_PRESSED */
 168         -1,     /*  5 SONYPI_EVENT_JOGDIAL_PRESSED */
 169         -1,     /*  6 SONYPI_EVENT_JOGDIAL_RELEASED */
 170          0,     /*  7 SONYPI_EVENT_CAPTURE_PRESSED */
 171          1,     /*  8 SONYPI_EVENT_CAPTURE_RELEASED */
 172          2,     /*  9 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
 173          3,     /* 10 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
 174          4,     /* 11 SONYPI_EVENT_FNKEY_ESC */
 175          5,     /* 12 SONYPI_EVENT_FNKEY_F1 */
 176          6,     /* 13 SONYPI_EVENT_FNKEY_F2 */
 177          7,     /* 14 SONYPI_EVENT_FNKEY_F3 */
 178          8,     /* 15 SONYPI_EVENT_FNKEY_F4 */
 179          9,     /* 16 SONYPI_EVENT_FNKEY_F5 */
 180         10,     /* 17 SONYPI_EVENT_FNKEY_F6 */
 181         11,     /* 18 SONYPI_EVENT_FNKEY_F7 */
 182         12,     /* 19 SONYPI_EVENT_FNKEY_F8 */
 183         13,     /* 20 SONYPI_EVENT_FNKEY_F9 */
 184         14,     /* 21 SONYPI_EVENT_FNKEY_F10 */
 185         15,     /* 22 SONYPI_EVENT_FNKEY_F11 */
 186         16,     /* 23 SONYPI_EVENT_FNKEY_F12 */
 187         17,     /* 24 SONYPI_EVENT_FNKEY_1 */
 188         18,     /* 25 SONYPI_EVENT_FNKEY_2 */
 189         19,     /* 26 SONYPI_EVENT_FNKEY_D */
 190         20,     /* 27 SONYPI_EVENT_FNKEY_E */
 191         21,     /* 28 SONYPI_EVENT_FNKEY_F */
 192         22,     /* 29 SONYPI_EVENT_FNKEY_S */
 193         23,     /* 30 SONYPI_EVENT_FNKEY_B */
 194         24,     /* 31 SONYPI_EVENT_BLUETOOTH_PRESSED */
 195         25,     /* 32 SONYPI_EVENT_PKEY_P1 */
 196         26,     /* 33 SONYPI_EVENT_PKEY_P2 */
 197         27,     /* 34 SONYPI_EVENT_PKEY_P3 */
 198         28,     /* 35 SONYPI_EVENT_BACK_PRESSED */
 199         -1,     /* 36 SONYPI_EVENT_LID_CLOSED */
 200         -1,     /* 37 SONYPI_EVENT_LID_OPENED */
 201         29,     /* 38 SONYPI_EVENT_BLUETOOTH_ON */
 202         30,     /* 39 SONYPI_EVENT_BLUETOOTH_OFF */
 203         31,     /* 40 SONYPI_EVENT_HELP_PRESSED */
 204         32,     /* 41 SONYPI_EVENT_FNKEY_ONLY */
 205         33,     /* 42 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
 206         34,     /* 43 SONYPI_EVENT_JOGDIAL_FAST_UP */
 207         35,     /* 44 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
 208         36,     /* 45 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
 209         37,     /* 46 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
 210         38,     /* 47 SONYPI_EVENT_JOGDIAL_VFAST_UP */
 211         39,     /* 48 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
 212         40,     /* 49 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
 213         41,     /* 50 SONYPI_EVENT_ZOOM_PRESSED */
 214         42,     /* 51 SONYPI_EVENT_THUMBPHRASE_PRESSED */
 215         43,     /* 52 SONYPI_EVENT_MEYE_FACE */
 216         44,     /* 53 SONYPI_EVENT_MEYE_OPPOSITE */
 217         45,     /* 54 SONYPI_EVENT_MEMORYSTICK_INSERT */
 218         46,     /* 55 SONYPI_EVENT_MEMORYSTICK_EJECT */
 219         -1,     /* 56 SONYPI_EVENT_ANYBUTTON_RELEASED */
 220         -1,     /* 57 SONYPI_EVENT_BATTERY_INSERT */
 221         -1,     /* 58 SONYPI_EVENT_BATTERY_REMOVE */
 222         -1,     /* 59 SONYPI_EVENT_FNKEY_RELEASED */
 223         47,     /* 60 SONYPI_EVENT_WIRELESS_ON */
 224         48,     /* 61 SONYPI_EVENT_WIRELESS_OFF */
 225         49,     /* 62 SONYPI_EVENT_ZOOM_IN_PRESSED */
 226         50,     /* 63 SONYPI_EVENT_ZOOM_OUT_PRESSED */
 227         51,     /* 64 SONYPI_EVENT_CD_EJECT_PRESSED */
 228         52,     /* 65 SONYPI_EVENT_MODEKEY_PRESSED */
 229         53,     /* 66 SONYPI_EVENT_PKEY_P4 */
 230         54,     /* 67 SONYPI_EVENT_PKEY_P5 */
 231         55,     /* 68 SONYPI_EVENT_SETTINGKEY_PRESSED */
 232         56,     /* 69 SONYPI_EVENT_VOLUME_INC_PRESSED */
 233         57,     /* 70 SONYPI_EVENT_VOLUME_DEC_PRESSED */
 234         -1,     /* 71 SONYPI_EVENT_BRIGHTNESS_PRESSED */
 235 };
 236
 237 static int sony_laptop_input_keycode_map[] = {
 238         KEY_CAMERA,     /*  0 SONYPI_EVENT_CAPTURE_PRESSED */
 239         KEY_RESERVED,   /*  1 SONYPI_EVENT_CAPTURE_RELEASED */
 240         KEY_RESERVED,   /*  2 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
 241         KEY_RESERVED,   /*  3 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
 242         KEY_FN_ESC,     /*  4 SONYPI_EVENT_FNKEY_ESC */
 243         KEY_FN_F1,      /*  5 SONYPI_EVENT_FNKEY_F1 */
 244         KEY_FN_F2,      /*  6 SONYPI_EVENT_FNKEY_F2 */
 245         KEY_FN_F3,      /*  7 SONYPI_EVENT_FNKEY_F3 */
 246         KEY_FN_F4,      /*  8 SONYPI_EVENT_FNKEY_F4 */
 247         KEY_FN_F5,      /*  9 SONYPI_EVENT_FNKEY_F5 */
 248         KEY_FN_F6,      /* 10 SONYPI_EVENT_FNKEY_F6 */
 249         KEY_FN_F7,      /* 11 SONYPI_EVENT_FNKEY_F7 */
 250         KEY_FN_F8,      /* 12 SONYPI_EVENT_FNKEY_F8 */
 251         KEY_FN_F9,      /* 13 SONYPI_EVENT_FNKEY_F9 */
 252         KEY_FN_F10,     /* 14 SONYPI_EVENT_FNKEY_F10 */
 253         KEY_FN_F11,     /* 15 SONYPI_EVENT_FNKEY_F11 */
 254         KEY_FN_F12,     /* 16 SONYPI_EVENT_FNKEY_F12 */
 255         KEY_FN_F1,      /* 17 SONYPI_EVENT_FNKEY_1 */
 256         KEY_FN_F2,      /* 18 SONYPI_EVENT_FNKEY_2 */
 257         KEY_FN_D,       /* 19 SONYPI_EVENT_FNKEY_D */
 258         KEY_FN_E,       /* 20 SONYPI_EVENT_FNKEY_E */
 259         KEY_FN_F,       /* 21 SONYPI_EVENT_FNKEY_F */
 260         KEY_FN_S,       /* 22 SONYPI_EVENT_FNKEY_S */
 261         KEY_FN_B,       /* 23 SONYPI_EVENT_FNKEY_B */
 262         KEY_BLUETOOTH,  /* 24 SONYPI_EVENT_BLUETOOTH_PRESSED */
 263         KEY_PROG1,      /* 25 SONYPI_EVENT_PKEY_P1 */
 264         KEY_PROG2,      /* 26 SONYPI_EVENT_PKEY_P2 */
 265         KEY_PROG3,      /* 27 SONYPI_EVENT_PKEY_P3 */
 266         KEY_BACK,       /* 28 SONYPI_EVENT_BACK_PRESSED */
 267         KEY_BLUETOOTH,  /* 29 SONYPI_EVENT_BLUETOOTH_ON */
 268         KEY_BLUETOOTH,  /* 30 SONYPI_EVENT_BLUETOOTH_OFF */
 269         KEY_HELP,       /* 31 SONYPI_EVENT_HELP_PRESSED */
 270         KEY_FN,         /* 32 SONYPI_EVENT_FNKEY_ONLY */
 271         KEY_RESERVED,   /* 33 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
 272         KEY_RESERVED,   /* 34 SONYPI_EVENT_JOGDIAL_FAST_UP */
 273         KEY_RESERVED,   /* 35 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
 274         KEY_RESERVED,   /* 36 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
 275         KEY_RESERVED,   /* 37 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
 276         KEY_RESERVED,   /* 38 SONYPI_EVENT_JOGDIAL_VFAST_UP */
 277         KEY_RESERVED,   /* 39 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
 278         KEY_RESERVED,   /* 40 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
 279         KEY_ZOOM,       /* 41 SONYPI_EVENT_ZOOM_PRESSED */
 280         BTN_THUMB,      /* 42 SONYPI_EVENT_THUMBPHRASE_PRESSED */
 281         KEY_RESERVED,   /* 43 SONYPI_EVENT_MEYE_FACE */
 282         KEY_RESERVED,   /* 44 SONYPI_EVENT_MEYE_OPPOSITE */
 283         KEY_RESERVED,   /* 45 SONYPI_EVENT_MEMORYSTICK_INSERT */
 284         KEY_RESERVED,   /* 46 SONYPI_EVENT_MEMORYSTICK_EJECT */
 285         KEY_WLAN,       /* 47 SONYPI_EVENT_WIRELESS_ON */
 286         KEY_WLAN,       /* 48 SONYPI_EVENT_WIRELESS_OFF */
 287         KEY_ZOOMIN,     /* 49 SONYPI_EVENT_ZOOM_IN_PRESSED */
 288         KEY_ZOOMOUT,    /* 50 SONYPI_EVENT_ZOOM_OUT_PRESSED */
 289         KEY_EJECTCD,    /* 51 SONYPI_EVENT_CD_EJECT_PRESSED */
 290         KEY_F13,        /* 52 SONYPI_EVENT_MODEKEY_PRESSED */
 291         KEY_PROG4,      /* 53 SONYPI_EVENT_PKEY_P4 */
 292         KEY_F14,        /* 54 SONYPI_EVENT_PKEY_P5 */
 293         KEY_F15,        /* 55 SONYPI_EVENT_SETTINGKEY_PRESSED */
 294         KEY_VOLUMEUP,   /* 56 SONYPI_EVENT_VOLUME_INC_PRESSED */
 295         KEY_VOLUMEDOWN, /* 57 SONYPI_EVENT_VOLUME_DEC_PRESSED */
 296 };
 297
 298 /* release buttons after a short delay if pressed */
 299 static void do_sony_laptop_release_key(struct work_struct *work)
 300 {
 301         struct sony_laptop_keypress kp;
 302
 303         while (kfifo_get(sony_laptop_input.fifo, (unsigned char *)&kp,
 304                          sizeof(kp)) == sizeof(kp)) {
 305                 msleep(10);
 306                 input_report_key(kp.dev, kp.key, 0);
 307                 input_sync(kp.dev);
 308         }
 309 }
 310 static DECLARE_WORK(sony_laptop_release_key_work,
 311                 do_sony_laptop_release_key);
 312
 313 /* forward event to the input subsystem */
 314 static void sony_laptop_report_input_event(u8 event)
 315 {
 316         struct input_dev *jog_dev = sony_laptop_input.jog_dev;
 317         struct input_dev *key_dev = sony_laptop_input.key_dev;
 318         struct sony_laptop_keypress kp = { NULL };
 319
 320         if (event == SONYPI_EVENT_FNKEY_RELEASED ||
 321                         event == SONYPI_EVENT_ANYBUTTON_RELEASED) {
 322                 /* Nothing, not all VAIOs generate this event */
 323                 return;
 324         }
 325
 326         /* report events */
 327         switch (event) {
 328         /* jog_dev events */
 329         case SONYPI_EVENT_JOGDIAL_UP:
 330         case SONYPI_EVENT_JOGDIAL_UP_PRESSED:
 331                 input_report_rel(jog_dev, REL_WHEEL, 1);
 332                 input_sync(jog_dev);
 333                 return;
 334
 335         case SONYPI_EVENT_JOGDIAL_DOWN:
 336         case SONYPI_EVENT_JOGDIAL_DOWN_PRESSED:
 337                 input_report_rel(jog_dev, REL_WHEEL, -1);
 338                 input_sync(jog_dev);
 339                 return;
 340
 341         /* key_dev events */
 342         case SONYPI_EVENT_JOGDIAL_PRESSED:
 343                 kp.key = BTN_MIDDLE;
 344                 kp.dev = jog_dev;
 345                 break;
 346
 347         default:
 348                 if (event >= ARRAY_SIZE(sony_laptop_input_index)) {
 349                         dprintk("sony_laptop_report_input_event, event not known: %d\n", event);
 350                         break;
 351                 }
 352                 if (sony_laptop_input_index[event] != -1) {
 353                         kp.key = sony_laptop_input_keycode_map[sony_laptop_input_index[event]];
 354                         if (kp.key != KEY_UNKNOWN)
 355                                 kp.dev = key_dev;
 356                 }
 357                 break;
 358         }
 359
 360         if (kp.dev) {
 361                 input_report_key(kp.dev, kp.key, 1);
 362                 /* we emit the scancode so we can always remap the key */
 363                 input_event(kp.dev, EV_MSC, MSC_SCAN, event);
 364                 input_sync(kp.dev);
 365                 kfifo_put(sony_laptop_input.fifo,
 366                           (unsigned char *)&kp, sizeof(kp));
 367
 368                 if (!work_pending(&sony_laptop_release_key_work))
 369                         queue_work(sony_laptop_input.wq,
 370                                         &sony_laptop_release_key_work);
 371         } else
 372                 dprintk("unknown input event %.2x\n", event);
 373 }
 374
 375 static int sony_laptop_setup_input(struct acpi_device *acpi_device)
 376 {
 377         struct input_dev *jog_dev;
 378         struct input_dev *key_dev;
 379         int i;
 380         int error;
 381
 382         /* don't run again if already initialized */
 383         if (atomic_add_return(1, &sony_laptop_input.users) > 1)
 384                 return 0;
 385
 386         /* kfifo */
 387         spin_lock_init(&sony_laptop_input.fifo_lock);
 388         sony_laptop_input.fifo =
 389                 kfifo_alloc(SONY_LAPTOP_BUF_SIZE, GFP_KERNEL,
 390                             &sony_laptop_input.fifo_lock);
 391         if (IS_ERR(sony_laptop_input.fifo)) {
 392                 printk(KERN_ERR DRV_PFX "kfifo_alloc failed\n");
 393                 error = PTR_ERR(sony_laptop_input.fifo);
 394                 goto err_dec_users;
 395         }
 396
 397         /* init workqueue */
 398         sony_laptop_input.wq = create_singlethread_workqueue("sony-laptop");
 399         if (!sony_laptop_input.wq) {
 400                 printk(KERN_ERR DRV_PFX
 401                                 "Unable to create workqueue.\n");
 402                 error = -ENXIO;
 403                 goto err_free_kfifo;
 404         }
 405
 406         /* input keys */
 407         key_dev = input_allocate_device();
 408         if (!key_dev) {
 409                 error = -ENOMEM;
 410                 goto err_destroy_wq;
 411         }
 412
 413         key_dev->name = "Sony Vaio Keys";
 414         key_dev->id.bustype = BUS_ISA;
 415         key_dev->id.vendor = PCI_VENDOR_ID_SONY;
 416         key_dev->dev.parent = &acpi_device->dev;
 417
 418         /* Initialize the Input Drivers: special keys */
 419         set_bit(EV_KEY, key_dev->evbit);
 420         set_bit(EV_MSC, key_dev->evbit);
 421         set_bit(MSC_SCAN, key_dev->mscbit);
 422         key_dev->keycodesize = sizeof(sony_laptop_input_keycode_map[0]);
 423         key_dev->keycodemax = ARRAY_SIZE(sony_laptop_input_keycode_map);
 424         key_dev->keycode = &sony_laptop_input_keycode_map;
 425         for (i = 0; i < ARRAY_SIZE(sony_laptop_input_keycode_map); i++) {
 426                 if (sony_laptop_input_keycode_map[i] != KEY_RESERVED) {
 427                         set_bit(sony_laptop_input_keycode_map[i],
 428                                 key_dev->keybit);
 429                 }
 430         }
 431
 432         error = input_register_device(key_dev);
 433         if (error)
 434                 goto err_free_keydev;
 435
 436         sony_laptop_input.key_dev = key_dev;
 437
 438         /* jogdial */
 439         jog_dev = input_allocate_device();
 440         if (!jog_dev) {
 441                 error = -ENOMEM;
 442                 goto err_unregister_keydev;
 443         }
 444
 445         jog_dev->name = "Sony Vaio Jogdial";
 446         jog_dev->id.bustype = BUS_ISA;
 447         jog_dev->id.vendor = PCI_VENDOR_ID_SONY;
 448         key_dev->dev.parent = &acpi_device->dev;
 449
 450         jog_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
 451         jog_dev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_MIDDLE);
 452         jog_dev->relbit[0] = BIT_MASK(REL_WHEEL);
 453
 454         error = input_register_device(jog_dev);
 455         if (error)
 456                 goto err_free_jogdev;
 457
 458         sony_laptop_input.jog_dev = jog_dev;
 459
 460         return 0;
 461
 462 err_free_jogdev:
 463         input_free_device(jog_dev);
 464
 465 err_unregister_keydev:
 466         input_unregister_device(key_dev);
 467         /* to avoid kref underflow below at input_free_device */
 468         key_dev = NULL;
 469
 470 err_free_keydev:
 471         input_free_device(key_dev);
 472
 473 err_destroy_wq:
 474         destroy_workqueue(sony_laptop_input.wq);
 475
 476 err_free_kfifo:
 477         kfifo_free(sony_laptop_input.fifo);
 478
 479 err_dec_users:
 480         atomic_dec(&sony_laptop_input.users);
 481         return error;
 482 }
 483
 484 static void sony_laptop_remove_input(void)
 485 {
 486         /* cleanup only after the last user has gone */
 487         if (!atomic_dec_and_test(&sony_laptop_input.users))
 488                 return;
 489
 490         /* flush workqueue first */
 491         flush_workqueue(sony_laptop_input.wq);
 492
 493         /* destroy input devs */
 494         input_unregister_device(sony_laptop_input.key_dev);
 495         sony_laptop_input.key_dev = NULL;
 496
 497         if (sony_laptop_input.jog_dev) {
 498                 input_unregister_device(sony_laptop_input.jog_dev);
 499                 sony_laptop_input.jog_dev = NULL;
 500         }
 501
 502         destroy_workqueue(sony_laptop_input.wq);
 503         kfifo_free(sony_laptop_input.fifo);
 504 }
 505
 506 /*********** Platform Device ***********/
 507
 508 static atomic_t sony_pf_users = ATOMIC_INIT(0);
 509 static struct platform_driver sony_pf_driver = {
 510         .driver = {
 511                    .name = "sony-laptop",
 512                    .owner = THIS_MODULE,
 513                    }
 514 };
 515 static struct platform_device *sony_pf_device;
 516
 517 static int sony_pf_add(void)
 518 {
 519         int ret = 0;
 520
 521         /* don't run again if already initialized */
 522         if (atomic_add_return(1, &sony_pf_users) > 1)
 523                 return 0;
 524
 525         ret = platform_driver_register(&sony_pf_driver);
 526         if (ret)
 527                 goto out;
 528
 529         sony_pf_device = platform_device_alloc("sony-laptop", -1);
 530         if (!sony_pf_device) {
 531                 ret = -ENOMEM;
 532                 goto out_platform_registered;
 533         }
 534
 535         ret = platform_device_add(sony_pf_device);
 536         if (ret)
 537                 goto out_platform_alloced;
 538
 539         return 0;
 540
 541       out_platform_alloced:
 542         platform_device_put(sony_pf_device);
 543         sony_pf_device = NULL;
 544       out_platform_registered:
 545         platform_driver_unregister(&sony_pf_driver);
 546       out:
 547         atomic_dec(&sony_pf_users);
 548         return ret;
 549 }
 550
 551 static void sony_pf_remove(void)
 552 {
 553         /* deregister only after the last user has gone */
 554         if (!atomic_dec_and_test(&sony_pf_users))
 555                 return;
 556
 557         platform_device_del(sony_pf_device);
 558         platform_device_put(sony_pf_device);
 559         platform_driver_unregister(&sony_pf_driver);
 560 }
 561
 562 /*********** SNC (SNY5001) Device ***********/
 563
 564 /* the device uses 1-based values, while the backlight subsystem uses
 565    0-based values */
 566 #define SONY_MAX_BRIGHTNESS     8
 567
 568 #define SNC_VALIDATE_IN         0
 569 #define SNC_VALIDATE_OUT        1
 570
 571 static ssize_t sony_nc_sysfs_show(struct device *, struct device_attribute *,
 572                               char *);
 573 static ssize_t sony_nc_sysfs_store(struct device *, struct device_attribute *,
 574                                const char *, size_t);
 575 static int boolean_validate(const int, const int);
 576 static int brightness_default_validate(const int, const int);
 577
 578 struct sony_nc_value {
 579         char *name;             /* name of the entry */
 580         char **acpiget;         /* names of the ACPI get function */
 581         char **acpiset;         /* names of the ACPI set function */
 582         int (*validate)(const int, const int);  /* input/output validation */
 583         int value;              /* current setting */
 584         int valid;              /* Has ever been set */
 585         int debug;              /* active only in debug mode ? */
 586         struct device_attribute devattr;        /* sysfs atribute */
 587 };
 588
 589 #define SNC_HANDLE_NAMES(_name, _values...) \
 590         static char *snc_##_name[] = { _values, NULL }
 591
 592 #define SNC_HANDLE(_name, _getters, _setters, _validate, _debug) \
 593         { \
 594                 .name           = __stringify(_name), \
 595                 .acpiget        = _getters, \
 596                 .acpiset        = _setters, \
 597                 .validate       = _validate, \
 598                 .debug          = _debug, \
 599                 .devattr        = __ATTR(_name, 0, sony_nc_sysfs_show, sony_nc_sysfs_store), \
 600         }
 601
 602 #define SNC_HANDLE_NULL { .name = NULL }
 603
 604 SNC_HANDLE_NAMES(fnkey_get, "GHKE");
 605
 606 SNC_HANDLE_NAMES(brightness_def_get, "GPBR");
 607 SNC_HANDLE_NAMES(brightness_def_set, "SPBR");
 608
 609 SNC_HANDLE_NAMES(cdpower_get, "GCDP");
 610 SNC_HANDLE_NAMES(cdpower_set, "SCDP", "CDPW");
 611
 612 SNC_HANDLE_NAMES(audiopower_get, "GAZP");
 613 SNC_HANDLE_NAMES(audiopower_set, "AZPW");
 614
 615 SNC_HANDLE_NAMES(lanpower_get, "GLNP");
 616 SNC_HANDLE_NAMES(lanpower_set, "LNPW");
 617
 618 SNC_HANDLE_NAMES(lidstate_get, "GLID");
 619
 620 SNC_HANDLE_NAMES(indicatorlamp_get, "GILS");
 621 SNC_HANDLE_NAMES(indicatorlamp_set, "SILS");
 622
 623 SNC_HANDLE_NAMES(gainbass_get, "GMGB");
 624 SNC_HANDLE_NAMES(gainbass_set, "CMGB");
 625
 626 SNC_HANDLE_NAMES(PID_get, "GPID");
 627
 628 SNC_HANDLE_NAMES(CTR_get, "GCTR");
 629 SNC_HANDLE_NAMES(CTR_set, "SCTR");
 630
 631 SNC_HANDLE_NAMES(PCR_get, "GPCR");
 632 SNC_HANDLE_NAMES(PCR_set, "SPCR");
 633
 634 SNC_HANDLE_NAMES(CMI_get, "GCMI");
 635 SNC_HANDLE_NAMES(CMI_set, "SCMI");
 636
 637 static struct sony_nc_value sony_nc_values[] = {
 638         SNC_HANDLE(brightness_default, snc_brightness_def_get,
 639                         snc_brightness_def_set, brightness_default_validate, 0),
 640         SNC_HANDLE(fnkey, snc_fnkey_get, NULL, NULL, 0),
 641         SNC_HANDLE(cdpower, snc_cdpower_get, snc_cdpower_set, boolean_validate, 0),
 642         SNC_HANDLE(audiopower, snc_audiopower_get, snc_audiopower_set,
 643                         boolean_validate, 0),
 644         SNC_HANDLE(lanpower, snc_lanpower_get, snc_lanpower_set,
 645                         boolean_validate, 1),
 646         SNC_HANDLE(lidstate, snc_lidstate_get, NULL,
 647                         boolean_validate, 0),
 648         SNC_HANDLE(indicatorlamp, snc_indicatorlamp_get, snc_indicatorlamp_set,
 649                         boolean_validate, 0),
 650         SNC_HANDLE(gainbass, snc_gainbass_get, snc_gainbass_set,
 651                         boolean_validate, 0),
 652         /* unknown methods */
 653         SNC_HANDLE(PID, snc_PID_get, NULL, NULL, 1),
 654         SNC_HANDLE(CTR, snc_CTR_get, snc_CTR_set, NULL, 1),
 655         SNC_HANDLE(PCR, snc_PCR_get, snc_PCR_set, NULL, 1),
 656         SNC_HANDLE(CMI, snc_CMI_get, snc_CMI_set, NULL, 1),
 657         SNC_HANDLE_NULL
 658 };
 659
 660 static acpi_handle sony_nc_acpi_handle;
 661 static struct acpi_device *sony_nc_acpi_device = NULL;
 662
 663 /*
 664  * acpi_evaluate_object wrappers
 665  */
 666 static int acpi_callgetfunc(acpi_handle handle, char *name, int *result)
 667 {
 668         struct acpi_buffer output;
 669         union acpi_object out_obj;
 670         acpi_status status;
 671
 672         output.length = sizeof(out_obj);
 673         output.pointer = &out_obj;
 674
 675         status = acpi_evaluate_object(handle, name, NULL, &output);
 676         if ((status == AE_OK) && (out_obj.type == ACPI_TYPE_INTEGER)) {
 677                 *result = out_obj.integer.value;
 678                 return 0;
 679         }
 680
 681         printk(KERN_WARNING DRV_PFX "acpi_callreadfunc failed\n");
 682
 683         return -1;
 684 }
 685
 686 static int acpi_callsetfunc(acpi_handle handle, char *name, int value,
 687                             int *result)
 688 {
 689         struct acpi_object_list params;
 690         union acpi_object in_obj;
 691         struct acpi_buffer output;
 692         union acpi_object out_obj;
 693         acpi_status status;
 694
 695         params.count = 1;
 696         params.pointer = &in_obj;
 697         in_obj.type = ACPI_TYPE_INTEGER;
 698         in_obj.integer.value = value;
 699
 700         output.length = sizeof(out_obj);
 701         output.pointer = &out_obj;
 702
 703         status = acpi_evaluate_object(handle, name, &params, &output);
 704         if (status == AE_OK) {
 705                 if (result != NULL) {
 706                         if (out_obj.type != ACPI_TYPE_INTEGER) {
 707                                 printk(KERN_WARNING DRV_PFX "acpi_evaluate_object bad "
 708                                        "return type\n");
 709                                 return -1;
 710                         }
 711                         *result = out_obj.integer.value;
 712                 }
 713                 return 0;
 714         }
 715
 716         printk(KERN_WARNING DRV_PFX "acpi_evaluate_object failed\n");
 717
 718         return -1;
 719 }
 720
 721 static int sony_find_snc_handle(int handle)
 722 {
 723         int i;
 724         int result;
 725
 726         for (i = 0x20; i < 0x30; i++) {
 727                 acpi_callsetfunc(sony_nc_acpi_handle, "SN00", i, &result);
 728                 if (result == handle)
 729                         return i-0x20;
 730         }
 731
 732         return -1;
 733 }
 734
 735 static int sony_call_snc_handle(int handle, int argument, int *result)
 736 {
 737         int offset = sony_find_snc_handle(handle);
 738
 739         if (offset < 0)
 740                 return -1;
 741
 742         return acpi_callsetfunc(sony_nc_acpi_handle, "SN07", offset | argument,
 743                                 result);
 744 }
 745
 746 /*
 747  * sony_nc_values input/output validate functions
 748  */
 749
 750 /* brightness_default_validate:
 751  *
 752  * manipulate input output values to keep consistency with the
 753  * backlight framework for which brightness values are 0-based.
 754  */
 755 static int brightness_default_validate(const int direction, const int value)
 756 {
 757         switch (direction) {
 758                 case SNC_VALIDATE_OUT:
 759                         return value - 1;
 760                 case SNC_VALIDATE_IN:
 761                         if (value >= 0 && value < SONY_MAX_BRIGHTNESS)
 762                                 return value + 1;
 763         }
 764         return -EINVAL;
 765 }
 766
 767 /* boolean_validate:
 768  *
 769  * on input validate boolean values 0/1, on output just pass the
 770  * received value.
 771  */
 772 static int boolean_validate(const int direction, const int value)
 773 {
 774         if (direction == SNC_VALIDATE_IN) {
 775                 if (value != 0 && value != 1)
 776                         return -EINVAL;
 777         }
 778         return value;
 779 }
 780
 781 /*
 782  * Sysfs show/store common to all sony_nc_values
 783  */
 784 static ssize_t sony_nc_sysfs_show(struct device *dev, struct device_attribute *attr,
 785                               char *buffer)
 786 {
 787         int value;
 788         struct sony_nc_value *item =
 789             container_of(attr, struct sony_nc_value, devattr);
 790
 791         if (!*item->acpiget)
 792                 return -EIO;
 793
 794         if (acpi_callgetfunc(sony_nc_acpi_handle, *item->acpiget, &value) < 0)
 795                 return -EIO;
 796
 797         if (item->validate)
 798                 value = item->validate(SNC_VALIDATE_OUT, value);
 799
 800         return snprintf(buffer, PAGE_SIZE, "%d\n", value);
 801 }
 802
 803 static ssize_t sony_nc_sysfs_store(struct device *dev,
 804                                struct device_attribute *attr,
 805                                const char *buffer, size_t count)
 806 {
 807         int value;
 808         struct sony_nc_value *item =
 809             container_of(attr, struct sony_nc_value, devattr);
 810
 811         if (!item->acpiset)
 812                 return -EIO;
 813
 814         if (count > 31)
 815                 return -EINVAL;
 816
 817         value = simple_strtoul(buffer, NULL, 10);
 818
 819         if (item->validate)
 820                 value = item->validate(SNC_VALIDATE_IN, value);
 821
 822         if (value < 0)
 823                 return value;
 824
 825         if (acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset, value, NULL) < 0)
 826                 return -EIO;
 827         item->value = value;
 828         item->valid = 1;
 829         return count;
 830 }
 831
 832
 833 /*
 834  * Backlight device
 835  */
 836 static int sony_backlight_update_status(struct backlight_device *bd)
 837 {
 838         return acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
 839                                 bd->props.brightness + 1, NULL);
 840 }
 841
 842 static int sony_backlight_get_brightness(struct backlight_device *bd)
 843 {
 844         int value;
 845
 846         if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value))
 847                 return 0;
 848         /* brightness levels are 1-based, while backlight ones are 0-based */
 849         return value - 1;
 850 }
 851
 852 static struct backlight_device *sony_backlight_device;
 853 static struct backlight_ops sony_backlight_ops = {
 854         .update_status = sony_backlight_update_status,
 855         .get_brightness = sony_backlight_get_brightness,
 856 };
 857
 858 /*
 859  * New SNC-only Vaios event mapping to driver known keys
 860  */
 861 struct sony_nc_event {
 862         u8      data;
 863         u8      event;
 864 };
 865
 866 static struct sony_nc_event sony_100_events[] = {
 867         { 0x90, SONYPI_EVENT_PKEY_P1 },
 868         { 0x10, SONYPI_EVENT_ANYBUTTON_RELEASED },
 869         { 0x91, SONYPI_EVENT_PKEY_P2 },
 870         { 0x11, SONYPI_EVENT_ANYBUTTON_RELEASED },
 871         { 0x81, SONYPI_EVENT_FNKEY_F1 },
 872         { 0x01, SONYPI_EVENT_FNKEY_RELEASED },
 873         { 0x82, SONYPI_EVENT_FNKEY_F2 },
 874         { 0x02, SONYPI_EVENT_FNKEY_RELEASED },
 875         { 0x83, SONYPI_EVENT_FNKEY_F3 },
 876         { 0x03, SONYPI_EVENT_FNKEY_RELEASED },
 877         { 0x84, SONYPI_EVENT_FNKEY_F4 },
 878         { 0x04, SONYPI_EVENT_FNKEY_RELEASED },
 879         { 0x85, SONYPI_EVENT_FNKEY_F5 },
 880         { 0x05, SONYPI_EVENT_FNKEY_RELEASED },
 881         { 0x86, SONYPI_EVENT_FNKEY_F6 },
 882         { 0x06, SONYPI_EVENT_FNKEY_RELEASED },
 883         { 0x87, SONYPI_EVENT_FNKEY_F7 },
 884         { 0x07, SONYPI_EVENT_FNKEY_RELEASED },
 885         { 0x89, SONYPI_EVENT_FNKEY_F9 },
 886         { 0x09, SONYPI_EVENT_FNKEY_RELEASED },
 887         { 0x8A, SONYPI_EVENT_FNKEY_F10 },
 888         { 0x0A, SONYPI_EVENT_FNKEY_RELEASED },
 889         { 0x8C, SONYPI_EVENT_FNKEY_F12 },
 890         { 0x0C, SONYPI_EVENT_FNKEY_RELEASED },
 891         { 0x9f, SONYPI_EVENT_CD_EJECT_PRESSED },
 892         { 0x1f, SONYPI_EVENT_ANYBUTTON_RELEASED },
 893         { 0, 0 },
 894 };
 895
 896 static struct sony_nc_event sony_127_events[] = {
 897         { 0x81, SONYPI_EVENT_MODEKEY_PRESSED },
 898         { 0x01, SONYPI_EVENT_ANYBUTTON_RELEASED },
 899         { 0x82, SONYPI_EVENT_PKEY_P1 },
 900         { 0x02, SONYPI_EVENT_ANYBUTTON_RELEASED },
 901         { 0x83, SONYPI_EVENT_PKEY_P2 },
 902         { 0x03, SONYPI_EVENT_ANYBUTTON_RELEASED },
 903         { 0x84, SONYPI_EVENT_PKEY_P3 },
 904         { 0x04, SONYPI_EVENT_ANYBUTTON_RELEASED },
 905         { 0x85, SONYPI_EVENT_PKEY_P4 },
 906         { 0x05, SONYPI_EVENT_ANYBUTTON_RELEASED },
 907         { 0x86, SONYPI_EVENT_PKEY_P5 },
 908         { 0x06, SONYPI_EVENT_ANYBUTTON_RELEASED },
 909         { 0x87, SONYPI_EVENT_SETTINGKEY_PRESSED },
 910         { 0x07, SONYPI_EVENT_ANYBUTTON_RELEASED },
 911         { 0, 0 },
 912 };
 913
 914 /*
 915  * ACPI callbacks
 916  */
 917 static void sony_nc_notify(struct acpi_device *device, u32 event)
 918 {
 919         u32 ev = event;
 920
 921         if (ev >= 0x90) {
 922                 /* New-style event */
 923                 int result;
 924                 int key_handle = 0;
 925                 ev -= 0x90;
 926
 927                 if (sony_find_snc_handle(0x100) == ev)
 928                         key_handle = 0x100;
 929                 if (sony_find_snc_handle(0x127) == ev)
 930                         key_handle = 0x127;
 931
 932                 if (key_handle) {
 933                         struct sony_nc_event *key_event;
 934
 935                         if (sony_call_snc_handle(key_handle, 0x200, &result)) {
 936                                 dprintk("sony_nc_notify, unable to decode"
 937                                         " event 0x%.2x 0x%.2x\n", key_handle,
 938                                         ev);
 939                                 /* restore the original event */
 940                                 ev = event;
 941                         } else {
 942                                 ev = result & 0xFF;
 943
 944                                 if (key_handle == 0x100)
 945                                         key_event = sony_100_events;
 946                                 else
 947                                         key_event = sony_127_events;
 948
 949                                 for (; key_event->data; key_event++) {
 950                                         if (key_event->data == ev) {
 951                                                 ev = key_event->event;
 952                                                 break;
 953                                         }
 954                                 }
 955
 956                                 if (!key_event->data)
 957                                         printk(KERN_INFO DRV_PFX
 958                                                         "Unknown event: 0x%x 0x%x\n",
 959                                                         key_handle,
 960                                                         ev);
 961                                 else
 962                                         sony_laptop_report_input_event(ev);
 963                         }
 964                 } else if (sony_find_snc_handle(0x124) == ev) {
 965                         sony_nc_rfkill_update();
 966                         return;
 967                 }
 968         } else
 969                 sony_laptop_report_input_event(ev);
 970
 971         dprintk("sony_nc_notify, event: 0x%.2x\n", ev);
 972         acpi_bus_generate_proc_event(sony_nc_acpi_device, 1, ev);
 973 }
 974
 975 static acpi_status sony_walk_callback(acpi_handle handle, u32 level,
 976                                       void *context, void **return_value)
 977 {
 978         struct acpi_device_info *info;
 979         struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL};
 980
 981         if (ACPI_SUCCESS(acpi_get_object_info(handle, &buffer))) {
 982                 info = buffer.pointer;
 983
 984                 printk(KERN_WARNING DRV_PFX "method: name: %4.4s, args %X\n",
 985                         (char *)&info->name, info->param_count);
 986
 987                 kfree(buffer.pointer);
 988         }
 989
 990         return AE_OK;
 991 }
 992
 993 /*
 994  * ACPI device
 995  */
 996 static int sony_nc_function_setup(struct acpi_device *device)
 997 {
 998         int result;
 999
1000         /* Enable all events */
1001         acpi_callsetfunc(sony_nc_acpi_handle, "SN02", 0xffff, &result);
1002
1003         /* Setup hotkeys */
1004         sony_call_snc_handle(0x0100, 0, &result);
1005         sony_call_snc_handle(0x0101, 0, &result);
1006         sony_call_snc_handle(0x0102, 0x100, &result);
1007         sony_call_snc_handle(0x0127, 0, &result);
1008
1009         return 0;
1010 }
1011
1012 static int sony_nc_resume(struct acpi_device *device)
1013 {
1014         struct sony_nc_value *item;
1015         acpi_handle handle;
1016
1017         for (item = sony_nc_values; item->name; item++) {
1018                 int ret;
1019
1020                 if (!item->valid)
1021                         continue;
1022                 ret = acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset,
1023                                        item->value, NULL);
1024                 if (ret < 0) {
1025                         printk("%s: %d\n", __func__, ret);
1026                         break;
1027                 }
1028         }
1029
1030         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "ECON",
1031                                          &handle))) {
1032                 if (acpi_callsetfunc(sony_nc_acpi_handle, "ECON", 1, NULL))
1033                         dprintk("ECON Method failed\n");
1034         }
1035
1036         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "SN00",
1037                                          &handle))) {
1038                 dprintk("Doing SNC setup\n");
1039                 sony_nc_function_setup(device);
1040         }
1041
1042         /* set the last requested brightness level */
1043         if (sony_backlight_device &&
1044                         sony_backlight_update_status(sony_backlight_device) < 0)
1045                 printk(KERN_WARNING DRV_PFX "unable to restore brightness level\n");
1046
1047         return 0;
1048 }
1049
1050 static void sony_nc_rfkill_cleanup(void)
1051 {
1052         int i;
1053
1054         for (i = 0; i < N_SONY_RFKILL; i++) {
1055                 if (sony_rfkill_devices[i]) {
1056                         rfkill_unregister(sony_rfkill_devices[i]);
1057                         rfkill_destroy(sony_rfkill_devices[i]);
1058                 }
1059         }
1060 }
1061
1062 static int sony_nc_rfkill_set(void *data, bool blocked)
1063 {
1064         int result;
1065         int argument = sony_rfkill_address[(long) data] + 0x100;
1066
1067         if (!blocked)
1068                 argument |= 0xff0000;
1069
1070         return sony_call_snc_handle(0x124, argument, &result);
1071 }
1072
1073 static const struct rfkill_ops sony_rfkill_ops = {
1074         .set_block = sony_nc_rfkill_set,
1075 };
1076
1077 static int sony_nc_setup_rfkill(struct acpi_device *device,
1078                                 enum sony_nc_rfkill nc_type)
1079 {
1080         int err = 0;
1081         struct rfkill *rfk;
1082         enum rfkill_type type;
1083         const char *name;
1084
1085         switch (nc_type) {
1086         case SONY_WIFI:
1087                 type = RFKILL_TYPE_WLAN;
1088                 name = "sony-wifi";
1089                 break;
1090         case SONY_BLUETOOTH:
1091                 type = RFKILL_TYPE_BLUETOOTH;
1092                 name = "sony-bluetooth";
1093                 break;
1094         case SONY_WWAN:
1095                 type = RFKILL_TYPE_WWAN;
1096                 name = "sony-wwan";
1097                 break;
1098         case SONY_WIMAX:
1099                 type = RFKILL_TYPE_WIMAX;
1100                 name = "sony-wimax";
1101                 break;
1102         default:
1103                 return -EINVAL;
1104         }
1105
1106         rfk = rfkill_alloc(name, &device->dev, type,
1107                            &sony_rfkill_ops, (void *)nc_type);
1108         if (!rfk)
1109                 return -ENOMEM;
1110
1111         err = rfkill_register(rfk);
1112         if (err) {
1113                 rfkill_destroy(rfk);
1114                 return err;
1115         }
1116         sony_rfkill_devices[nc_type] = rfk;
1117         return err;
1118 }
1119
1120 static void sony_nc_rfkill_update()
1121 {
1122         enum sony_nc_rfkill i;
1123         int result;
1124         bool hwblock;
1125
1126         sony_call_snc_handle(0x124, 0x200, &result);
1127         hwblock = !(result & 0x1);
1128
1129         for (i = 0; i < N_SONY_RFKILL; i++) {
1130                 int argument = sony_rfkill_address[i];
1131
1132                 if (!sony_rfkill_devices[i])
1133                         continue;
1134
1135                 if (hwblock) {
1136                         if (rfkill_set_hw_state(sony_rfkill_devices[i], true)) {
1137                                 /* we already know we're blocked */
1138                         }
1139                         continue;
1140                 }
1141
1142                 sony_call_snc_handle(0x124, argument, &result);
1143                 rfkill_set_states(sony_rfkill_devices[i],
1144                                   !(result & 0xf), false);
1145         }
1146 }
1147
1148 static int sony_nc_rfkill_setup(struct acpi_device *device)
1149 {
1150         int result, ret;
1151
1152         if (sony_find_snc_handle(0x124) == -1)
1153                 return -1;
1154
1155         ret = sony_call_snc_handle(0x124, 0xb00, &result);
1156         if (ret) {
1157                 printk(KERN_INFO DRV_PFX
1158                        "Unable to enumerate rfkill devices: %x\n", ret);
1159                 return ret;
1160         }
1161
1162         if (result & 0x1)
1163                 sony_nc_setup_rfkill(device, SONY_WIFI);
1164         if (result & 0x2)
1165                 sony_nc_setup_rfkill(device, SONY_BLUETOOTH);
1166         if (result & 0x1c)
1167                 sony_nc_setup_rfkill(device, SONY_WWAN);
1168         if (result & 0x20)
1169                 sony_nc_setup_rfkill(device, SONY_WIMAX);
1170
1171         return 0;
1172 }
1173
1174 static int sony_nc_add(struct acpi_device *device)
1175 {
1176         acpi_status status;
1177         int result = 0;
1178         acpi_handle handle;
1179         struct sony_nc_value *item;
1180
1181         printk(KERN_INFO DRV_PFX "%s v%s.\n",
1182                 SONY_NC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
1183
1184         sony_nc_acpi_device = device;
1185         strcpy(acpi_device_class(device), "sony/hotkey");
1186
1187         sony_nc_acpi_handle = device->handle;
1188
1189         /* read device status */
1190         result = acpi_bus_get_status(device);
1191         /* bail IFF the above call was successful and the device is not present */
1192         if (!result && !device->status.present) {
1193                 dprintk("Device not present\n");
1194                 result = -ENODEV;
1195                 goto outwalk;
1196         }
1197
1198         if (debug) {
1199                 status = acpi_walk_namespace(ACPI_TYPE_METHOD, sony_nc_acpi_handle,
1200                                              1, sony_walk_callback, NULL, NULL);
1201                 if (ACPI_FAILURE(status)) {
1202                         printk(KERN_WARNING DRV_PFX "unable to walk acpi resources\n");
1203                         result = -ENODEV;
1204                         goto outwalk;
1205                 }
1206         }
1207
1208         /* try to _INI the device if such method exists (ACPI spec 3.0-6.5.1
1209          * should be respected as we already checked for the device presence above */
1210         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, METHOD_NAME__INI, &handle))) {
1211                 dprintk("Invoking _INI\n");
1212                 if (ACPI_FAILURE(acpi_evaluate_object(sony_nc_acpi_handle, METHOD_NAME__INI,
1213                                                 NULL, NULL)))
1214                         dprintk("_INI Method failed\n");
1215         }
1216
1217         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "ECON",
1218                                          &handle))) {
1219                 if (acpi_callsetfunc(sony_nc_acpi_handle, "ECON", 1, NULL))
1220                         dprintk("ECON Method failed\n");
1221         }
1222
1223         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "SN00",
1224                                          &handle))) {
1225                 dprintk("Doing SNC setup\n");
1226                 sony_nc_function_setup(device);
1227                 sony_nc_rfkill_setup(device);
1228         }
1229
1230         /* setup input devices and helper fifo */
1231         result = sony_laptop_setup_input(device);
1232         if (result) {
1233                 printk(KERN_ERR DRV_PFX
1234                                 "Unable to create input devices.\n");
1235                 goto outwalk;
1236         }
1237
1238         if (acpi_video_backlight_support()) {
1239                 printk(KERN_INFO DRV_PFX "brightness ignored, must be "
1240                        "controlled by ACPI video driver\n");
1241         } else if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT",
1242                                                 &handle))) {
1243                 sony_backlight_device = backlight_device_register("sony", NULL,
1244                                                                   NULL,
1245                                                                   &sony_backlight_ops);
1246
1247                 if (IS_ERR(sony_backlight_device)) {
1248                         printk(KERN_WARNING DRV_PFX "unable to register backlight device\n");
1249                         sony_backlight_device = NULL;
1250                 } else {
1251                         sony_backlight_device->props.brightness =
1252                             sony_backlight_get_brightness
1253                             (sony_backlight_device);
1254                         sony_backlight_device->props.max_brightness =
1255                             SONY_MAX_BRIGHTNESS - 1;
1256                 }
1257
1258         }
1259
1260         result = sony_pf_add();
1261         if (result)
1262                 goto outbacklight;
1263
1264         /* create sony_pf sysfs attributes related to the SNC device */
1265         for (item = sony_nc_values; item->name; ++item) {
1266
1267                 if (!debug && item->debug)
1268                         continue;
1269
1270                 /* find the available acpiget as described in the DSDT */
1271                 for (; item->acpiget && *item->acpiget; ++item->acpiget) {
1272                         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
1273                                                          *item->acpiget,
1274                                                          &handle))) {
1275                                 dprintk("Found %s getter: %s\n",
1276                                                 item->name, *item->acpiget);
1277                                 item->devattr.attr.mode |= S_IRUGO;
1278                                 break;
1279                         }
1280                 }
1281
1282                 /* find the available acpiset as described in the DSDT */
1283                 for (; item->acpiset && *item->acpiset; ++item->acpiset) {
1284                         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
1285                                                          *item->acpiset,
1286                                                          &handle))) {
1287                                 dprintk("Found %s setter: %s\n",
1288                                                 item->name, *item->acpiset);
1289                                 item->devattr.attr.mode |= S_IWUSR;
1290                                 break;
1291                         }
1292                 }
1293
1294                 if (item->devattr.attr.mode != 0) {
1295                         result =
1296                             device_create_file(&sony_pf_device->dev,
1297                                                &item->devattr);
1298                         if (result)
1299                                 goto out_sysfs;
1300                 }
1301         }
1302
1303         return 0;
1304
1305       out_sysfs:
1306         for (item = sony_nc_values; item->name; ++item) {
1307                 device_remove_file(&sony_pf_device->dev, &item->devattr);
1308         }
1309         sony_pf_remove();
1310
1311       outbacklight:
1312         if (sony_backlight_device)
1313                 backlight_device_unregister(sony_backlight_device);
1314
1315         sony_laptop_remove_input();
1316
1317       outwalk:
1318         sony_nc_rfkill_cleanup();
1319         return result;
1320 }
1321
1322 static int sony_nc_remove(struct acpi_device *device, int type)
1323 {
1324         struct sony_nc_value *item;
1325
1326         if (sony_backlight_device)
1327                 backlight_device_unregister(sony_backlight_device);
1328
1329         sony_nc_acpi_device = NULL;
1330
1331         for (item = sony_nc_values; item->name; ++item) {
1332                 device_remove_file(&sony_pf_device->dev, &item->devattr);
1333         }
1334
1335         sony_pf_remove();
1336         sony_laptop_remove_input();
1337         sony_nc_rfkill_cleanup();
1338         dprintk(SONY_NC_DRIVER_NAME " removed.\n");
1339
1340         return 0;
1341 }
1342
1343 static const struct acpi_device_id sony_device_ids[] = {
1344         {SONY_NC_HID, 0},
1345         {SONY_PIC_HID, 0},
1346         {"", 0},
1347 };
1348 MODULE_DEVICE_TABLE(acpi, sony_device_ids);
1349
1350 static const struct acpi_device_id sony_nc_device_ids[] = {
1351         {SONY_NC_HID, 0},
1352         {"", 0},
1353 };
1354
1355 static struct acpi_driver sony_nc_driver = {
1356         .name = SONY_NC_DRIVER_NAME,
1357         .class = SONY_NC_CLASS,
1358         .ids = sony_nc_device_ids,
1359         .owner = THIS_MODULE,
1360         .ops = {
1361                 .add = sony_nc_add,
1362                 .remove = sony_nc_remove,
1363                 .resume = sony_nc_resume,
1364                 .notify = sony_nc_notify,
1365                 },
1366 };
1367
1368 /*********** SPIC (SNY6001) Device ***********/
1369
1370 #define SONYPI_DEVICE_TYPE1     0x00000001
1371 #define SONYPI_DEVICE_TYPE2     0x00000002
1372 #define SONYPI_DEVICE_TYPE3     0x00000004
1373 #define SONYPI_DEVICE_TYPE4     0x00000008
1374
1375 #define SONYPI_TYPE1_OFFSET     0x04
1376 #define SONYPI_TYPE2_OFFSET     0x12
1377 #define SONYPI_TYPE3_OFFSET     0x12
1378
1379 struct sony_pic_ioport {
1380         struct acpi_resource_io io1;
1381         struct acpi_resource_io io2;
1382         struct list_head        list;
1383 };
1384
1385 struct sony_pic_irq {
1386         struct acpi_resource_irq        irq;
1387         struct list_head                list;
1388 };
1389
1390 struct sonypi_eventtypes {
1391         u8                      data;
1392         unsigned long           mask;
1393         struct sonypi_event     *events;
1394 };
1395
1396 struct device_ctrl {
1397         int                             model;
1398         int                             (*handle_irq)(const u8, const u8);
1399         u16                             evport_offset;
1400         u8                              has_camera;
1401         u8                              has_bluetooth;
1402         u8                              has_wwan;
1403         struct sonypi_eventtypes        *event_types;
1404 };
1405
1406 struct sony_pic_dev {
1407         struct device_ctrl      *control;
1408         struct acpi_device      *acpi_dev;
1409         struct sony_pic_irq     *cur_irq;
1410         struct sony_pic_ioport  *cur_ioport;
1411         struct list_head        interrupts;
1412         struct list_head        ioports;
1413         struct mutex            lock;
1414         u8                      camera_power;
1415         u8                      bluetooth_power;
1416         u8                      wwan_power;
1417 };
1418
1419 static struct sony_pic_dev spic_dev = {
1420         .interrupts     = LIST_HEAD_INIT(spic_dev.interrupts),
1421         .ioports        = LIST_HEAD_INIT(spic_dev.ioports),
1422 };
1423
1424 /* Event masks */
1425 #define SONYPI_JOGGER_MASK                      0x00000001
1426 #define SONYPI_CAPTURE_MASK                     0x00000002
1427 #define SONYPI_FNKEY_MASK                       0x00000004
1428 #define SONYPI_BLUETOOTH_MASK                   0x00000008
1429 #define SONYPI_PKEY_MASK                        0x00000010
1430 #define SONYPI_BACK_MASK                        0x00000020
1431 #define SONYPI_HELP_MASK                        0x00000040
1432 #define SONYPI_LID_MASK                         0x00000080
1433 #define SONYPI_ZOOM_MASK                        0x00000100
1434 #define SONYPI_THUMBPHRASE_MASK                 0x00000200
1435 #define SONYPI_MEYE_MASK                        0x00000400
1436 #define SONYPI_MEMORYSTICK_MASK                 0x00000800
1437 #define SONYPI_BATTERY_MASK                     0x00001000
1438 #define SONYPI_WIRELESS_MASK                    0x00002000
1439
1440 struct sonypi_event {
1441         u8      data;
1442         u8      event;
1443 };
1444
1445 /* The set of possible button release events */
1446 static struct sonypi_event sonypi_releaseev[] = {
1447         { 0x00, SONYPI_EVENT_ANYBUTTON_RELEASED },
1448         { 0, 0 }
1449 };
1450
1451 /* The set of possible jogger events  */
1452 static struct sonypi_event sonypi_joggerev[] = {
1453         { 0x1f, SONYPI_EVENT_JOGDIAL_UP },
1454         { 0x01, SONYPI_EVENT_JOGDIAL_DOWN },
1455         { 0x5f, SONYPI_EVENT_JOGDIAL_UP_PRESSED },
1456         { 0x41, SONYPI_EVENT_JOGDIAL_DOWN_PRESSED },
1457         { 0x1e, SONYPI_EVENT_JOGDIAL_FAST_UP },
1458         { 0x02, SONYPI_EVENT_JOGDIAL_FAST_DOWN },
1459         { 0x5e, SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED },
1460         { 0x42, SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED },
1461         { 0x1d, SONYPI_EVENT_JOGDIAL_VFAST_UP },
1462         { 0x03, SONYPI_EVENT_JOGDIAL_VFAST_DOWN },
1463         { 0x5d, SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED },
1464         { 0x43, SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED },
1465         { 0x40, SONYPI_EVENT_JOGDIAL_PRESSED },
1466         { 0, 0 }
1467 };
1468
1469 /* The set of possible capture button events */
1470 static struct sonypi_event sonypi_captureev[] = {
1471         { 0x05, SONYPI_EVENT_CAPTURE_PARTIALPRESSED },
1472         { 0x07, SONYPI_EVENT_CAPTURE_PRESSED },
1473         { 0x40, SONYPI_EVENT_CAPTURE_PRESSED },
1474         { 0x01, SONYPI_EVENT_CAPTURE_PARTIALRELEASED },
1475         { 0, 0 }
1476 };
1477
1478 /* The set of possible fnkeys events */
1479 static struct sonypi_event sonypi_fnkeyev[] = {
1480         { 0x10, SONYPI_EVENT_FNKEY_ESC },
1481         { 0x11, SONYPI_EVENT_FNKEY_F1 },
1482         { 0x12, SONYPI_EVENT_FNKEY_F2 },
1483         { 0x13, SONYPI_EVENT_FNKEY_F3 },
1484         { 0x14, SONYPI_EVENT_FNKEY_F4 },
1485         { 0x15, SONYPI_EVENT_FNKEY_F5 },
1486         { 0x16, SONYPI_EVENT_FNKEY_F6 },
1487         { 0x17, SONYPI_EVENT_FNKEY_F7 },
1488         { 0x18, SONYPI_EVENT_FNKEY_F8 },
1489         { 0x19, SONYPI_EVENT_FNKEY_F9 },
1490         { 0x1a, SONYPI_EVENT_FNKEY_F10 },
1491         { 0x1b, SONYPI_EVENT_FNKEY_F11 },
1492         { 0x1c, SONYPI_EVENT_FNKEY_F12 },
1493         { 0x1f, SONYPI_EVENT_FNKEY_RELEASED },
1494         { 0x21, SONYPI_EVENT_FNKEY_1 },
1495         { 0x22, SONYPI_EVENT_FNKEY_2 },
1496         { 0x31, SONYPI_EVENT_FNKEY_D },
1497         { 0x32, SONYPI_EVENT_FNKEY_E },
1498         { 0x33, SONYPI_EVENT_FNKEY_F },
1499         { 0x34, SONYPI_EVENT_FNKEY_S },
1500         { 0x35, SONYPI_EVENT_FNKEY_B },
1501         { 0x36, SONYPI_EVENT_FNKEY_ONLY },
1502         { 0, 0 }
1503 };
1504
1505 /* The set of possible program key events */
1506 static struct sonypi_event sonypi_pkeyev[] = {
1507         { 0x01, SONYPI_EVENT_PKEY_P1 },
1508         { 0x02, SONYPI_EVENT_PKEY_P2 },
1509         { 0x04, SONYPI_EVENT_PKEY_P3 },
1510         { 0x20, SONYPI_EVENT_PKEY_P1 },
1511         { 0, 0 }
1512 };
1513
1514 /* The set of possible bluetooth events */
1515 static struct sonypi_event sonypi_blueev[] = {
1516         { 0x55, SONYPI_EVENT_BLUETOOTH_PRESSED },
1517         { 0x59, SONYPI_EVENT_BLUETOOTH_ON },
1518         { 0x5a, SONYPI_EVENT_BLUETOOTH_OFF },
1519         { 0, 0 }
1520 };
1521
1522 /* The set of possible wireless events */
1523 static struct sonypi_event sonypi_wlessev[] = {
1524         { 0x59, SONYPI_EVENT_WIRELESS_ON },
1525         { 0x5a, SONYPI_EVENT_WIRELESS_OFF },
1526         { 0, 0 }
1527 };
1528
1529 /* The set of possible back button events */
1530 static struct sonypi_event sonypi_backev[] = {
1531         { 0x20, SONYPI_EVENT_BACK_PRESSED },
1532         { 0, 0 }
1533 };
1534
1535 /* The set of possible help button events */
1536 static struct sonypi_event sonypi_helpev[] = {
1537         { 0x3b, SONYPI_EVENT_HELP_PRESSED },
1538         { 0, 0 }
1539 };
1540
1541
1542 /* The set of possible lid events */
1543 static struct sonypi_event sonypi_lidev[] = {
1544         { 0x51, SONYPI_EVENT_LID_CLOSED },
1545         { 0x50, SONYPI_EVENT_LID_OPENED },
1546         { 0, 0 }
1547 };
1548
1549 /* The set of possible zoom events */
1550 static struct sonypi_event sonypi_zoomev[] = {
1551         { 0x39, SONYPI_EVENT_ZOOM_PRESSED },
1552         { 0x10, SONYPI_EVENT_ZOOM_IN_PRESSED },
1553         { 0x20, SONYPI_EVENT_ZOOM_OUT_PRESSED },
1554         { 0x04, SONYPI_EVENT_ZOOM_PRESSED },
1555         { 0, 0 }
1556 };
1557
1558 /* The set of possible thumbphrase events */
1559 static struct sonypi_event sonypi_thumbphraseev[] = {
1560         { 0x3a, SONYPI_EVENT_THUMBPHRASE_PRESSED },
1561         { 0, 0 }
1562 };
1563
1564 /* The set of possible motioneye camera events */
1565 static struct sonypi_event sonypi_meyeev[] = {
1566         { 0x00, SONYPI_EVENT_MEYE_FACE },
1567         { 0x01, SONYPI_EVENT_MEYE_OPPOSITE },
1568         { 0, 0 }
1569 };
1570
1571 /* The set of possible memorystick events */
1572 static struct sonypi_event sonypi_memorystickev[] = {
1573         { 0x53, SONYPI_EVENT_MEMORYSTICK_INSERT },
1574         { 0x54, SONYPI_EVENT_MEMORYSTICK_EJECT },
1575         { 0, 0 }
1576 };
1577
1578 /* The set of possible battery events */
1579 static struct sonypi_event sonypi_batteryev[] = {
1580         { 0x20, SONYPI_EVENT_BATTERY_INSERT },
1581         { 0x30, SONYPI_EVENT_BATTERY_REMOVE },
1582         { 0, 0 }
1583 };
1584
1585 /* The set of possible volume events */
1586 static struct sonypi_event sonypi_volumeev[] = {
1587         { 0x01, SONYPI_EVENT_VOLUME_INC_PRESSED },
1588         { 0x02, SONYPI_EVENT_VOLUME_DEC_PRESSED },
1589         { 0, 0 }
1590 };
1591
1592 /* The set of possible brightness events */
1593 static struct sonypi_event sonypi_brightnessev[] = {
1594         { 0x80, SONYPI_EVENT_BRIGHTNESS_PRESSED },
1595         { 0, 0 }
1596 };
1597
1598 static struct sonypi_eventtypes type1_events[] = {
1599         { 0, 0xffffffff, sonypi_releaseev },
1600         { 0x70, SONYPI_MEYE_MASK, sonypi_meyeev },
1601         { 0x30, SONYPI_LID_MASK, sonypi_lidev },
1602         { 0x60, SONYPI_CAPTURE_MASK, sonypi_captureev },
1603         { 0x10, SONYPI_JOGGER_MASK, sonypi_joggerev },
1604         { 0x20, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1605         { 0x30, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
1606         { 0x40, SONYPI_PKEY_MASK, sonypi_pkeyev },
1607         { 0x30, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1608         { 0x40, SONYPI_BATTERY_MASK, sonypi_batteryev },
1609         { 0 },
1610 };
1611 static struct sonypi_eventtypes type2_events[] = {
1612         { 0, 0xffffffff, sonypi_releaseev },
1613         { 0x38, SONYPI_LID_MASK, sonypi_lidev },
1614         { 0x11, SONYPI_JOGGER_MASK, sonypi_joggerev },
1615         { 0x61, SONYPI_CAPTURE_MASK, sonypi_captureev },
1616         { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1617         { 0x31, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
1618         { 0x08, SONYPI_PKEY_MASK, sonypi_pkeyev },
1619         { 0x11, SONYPI_BACK_MASK, sonypi_backev },
1620         { 0x21, SONYPI_HELP_MASK, sonypi_helpev },
1621         { 0x21, SONYPI_ZOOM_MASK, sonypi_zoomev },
1622         { 0x20, SONYPI_THUMBPHRASE_MASK, sonypi_thumbphraseev },
1623         { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1624         { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
1625         { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
1626         { 0 },
1627 };
1628 static struct sonypi_eventtypes type3_events[] = {
1629         { 0, 0xffffffff, sonypi_releaseev },
1630         { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1631         { 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
1632         { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1633         { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
1634         { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
1635         { 0x05, SONYPI_PKEY_MASK, sonypi_pkeyev },
1636         { 0x05, SONYPI_ZOOM_MASK, sonypi_zoomev },
1637         { 0x05, SONYPI_CAPTURE_MASK, sonypi_captureev },
1638         { 0x05, SONYPI_PKEY_MASK, sonypi_volumeev },
1639         { 0x05, SONYPI_PKEY_MASK, sonypi_brightnessev },
1640         { 0 },
1641 };
1642
1643 /* low level spic calls */
1644 #define ITERATIONS_LONG         10000
1645 #define ITERATIONS_SHORT        10
1646 #define wait_on_command(command, iterations) {                          \
1647         unsigned int n = iterations;                                    \
1648         while (--n && (command))                                        \
1649                 udelay(1);                                              \
1650         if (!n)                                                         \
1651                 dprintk("command failed at %s : %s (line %d)\n",        \
1652                                 __FILE__, __func__, __LINE__);  \
1653 }
1654
1655 static u8 sony_pic_call1(u8 dev)
1656 {
1657         u8 v1, v2;
1658
1659         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
1660                         ITERATIONS_LONG);
1661         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
1662         v1 = inb_p(spic_dev.cur_ioport->io1.minimum + 4);
1663         v2 = inb_p(spic_dev.cur_ioport->io1.minimum);
1664         dprintk("sony_pic_call1(0x%.2x): 0x%.4x\n", dev, (v2 << 8) | v1);
1665         return v2;
1666 }
1667
1668 static u8 sony_pic_call2(u8 dev, u8 fn)
1669 {
1670         u8 v1;
1671
1672         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
1673                         ITERATIONS_LONG);
1674         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
1675         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
1676                         ITERATIONS_LONG);
1677         outb(fn, spic_dev.cur_ioport->io1.minimum);
1678         v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
1679         dprintk("sony_pic_call2(0x%.2x - 0x%.2x): 0x%.4x\n", dev, fn, v1);
1680         return v1;
1681 }
1682
1683 static u8 sony_pic_call3(u8 dev, u8 fn, u8 v)
1684 {
1685         u8 v1;
1686
1687         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
1688         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
1689         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
1690         outb(fn, spic_dev.cur_ioport->io1.minimum);
1691         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
1692         outb(v, spic_dev.cur_ioport->io1.minimum);
1693         v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
1694         dprintk("sony_pic_call3(0x%.2x - 0x%.2x - 0x%.2x): 0x%.4x\n",
1695                         dev, fn, v, v1);
1696         return v1;
1697 }
1698
1699 /*
1700  * minidrivers for SPIC models
1701  */
1702 static int type3_handle_irq(const u8 data_mask, const u8 ev)
1703 {
1704         /*
1705          * 0x31 could mean we have to take some extra action and wait for
1706          * the next irq for some Type3 models, it will generate a new
1707          * irq and we can read new data from the device:
1708          *  - 0x5c and 0x5f requires 0xA0
1709          *  - 0x61 requires 0xB3
1710          */
1711         if (data_mask == 0x31) {
1712                 if (ev == 0x5c || ev == 0x5f)
1713                         sony_pic_call1(0xA0);
1714                 else if (ev == 0x61)
1715                         sony_pic_call1(0xB3);
1716                 return 0;
1717         }
1718         return 1;
1719 }
1720
1721 static struct device_ctrl spic_types[] = {
1722         {
1723                 .model = SONYPI_DEVICE_TYPE1,
1724                 .handle_irq = NULL,
1725                 .evport_offset = SONYPI_TYPE1_OFFSET,
1726                 .event_types = type1_events,
1727         },
1728         {
1729                 .model = SONYPI_DEVICE_TYPE2,
1730                 .handle_irq = NULL,
1731                 .evport_offset = SONYPI_TYPE2_OFFSET,
1732                 .event_types = type2_events,
1733         },
1734         {
1735                 .model = SONYPI_DEVICE_TYPE3,
1736                 .handle_irq = type3_handle_irq,
1737                 .evport_offset = SONYPI_TYPE3_OFFSET,
1738                 .event_types = type3_events,
1739         },
1740 };
1741
1742 static void sony_pic_detect_device_type(struct sony_pic_dev *dev)
1743 {
1744         struct pci_dev *pcidev;
1745
1746         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1747                         PCI_DEVICE_ID_INTEL_82371AB_3, NULL);
1748         if (pcidev) {
1749                 dev->control = &spic_types[0];
1750                 goto out;
1751         }
1752
1753         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1754                         PCI_DEVICE_ID_INTEL_ICH6_1, NULL);
1755         if (pcidev) {
1756                 dev->control = &spic_types[2];
1757                 goto out;
1758         }
1759
1760         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1761                         PCI_DEVICE_ID_INTEL_ICH7_1, NULL);
1762         if (pcidev) {
1763                 dev->control = &spic_types[2];
1764                 goto out;
1765         }
1766
1767         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1768                         PCI_DEVICE_ID_INTEL_ICH8_4, NULL);
1769         if (pcidev) {
1770                 dev->control = &spic_types[2];
1771                 goto out;
1772         }
1773
1774         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1775                         PCI_DEVICE_ID_INTEL_ICH9_1, NULL);
1776         if (pcidev) {
1777                 dev->control = &spic_types[2];
1778                 goto out;
1779         }
1780
1781         /* default */
1782         dev->control = &spic_types[1];
1783
1784 out:
1785         if (pcidev)
1786                 pci_dev_put(pcidev);
1787
1788         printk(KERN_INFO DRV_PFX "detected Type%d model\n",
1789                         dev->control->model == SONYPI_DEVICE_TYPE1 ? 1 :
1790                         dev->control->model == SONYPI_DEVICE_TYPE2 ? 2 : 3);
1791 }
1792
1793 /* camera tests and poweron/poweroff */
1794 #define SONYPI_CAMERA_PICTURE           5
1795 #define SONYPI_CAMERA_CONTROL           0x10
1796
1797 #define SONYPI_CAMERA_BRIGHTNESS                0
1798 #define SONYPI_CAMERA_CONTRAST                  1
1799 #define SONYPI_CAMERA_HUE                       2
1800 #define SONYPI_CAMERA_COLOR                     3
1801 #define SONYPI_CAMERA_SHARPNESS                 4
1802
1803 #define SONYPI_CAMERA_EXPOSURE_MASK             0xC
1804 #define SONYPI_CAMERA_WHITE_BALANCE_MASK        0x3
1805 #define SONYPI_CAMERA_PICTURE_MODE_MASK         0x30
1806 #define SONYPI_CAMERA_MUTE_MASK                 0x40
1807
1808 /* the rest don't need a loop until not 0xff */
1809 #define SONYPI_CAMERA_AGC                       6
1810 #define SONYPI_CAMERA_AGC_MASK                  0x30
1811 #define SONYPI_CAMERA_SHUTTER_MASK              0x7
1812
1813 #define SONYPI_CAMERA_SHUTDOWN_REQUEST          7
1814 #define SONYPI_CAMERA_CONTROL                   0x10
1815
1816 #define SONYPI_CAMERA_STATUS                    7
1817 #define SONYPI_CAMERA_STATUS_READY              0x2
1818 #define SONYPI_CAMERA_STATUS_POSITION           0x4
1819
1820 #define SONYPI_DIRECTION_BACKWARDS              0x4
1821
1822 #define SONYPI_CAMERA_REVISION                  8
1823 #define SONYPI_CAMERA_ROMVERSION                9
1824
1825 static int __sony_pic_camera_ready(void)
1826 {
1827         u8 v;
1828
1829         v = sony_pic_call2(0x8f, SONYPI_CAMERA_STATUS);
1830         return (v != 0xff && (v & SONYPI_CAMERA_STATUS_READY));
1831 }
1832
1833 static int __sony_pic_camera_off(void)
1834 {
1835         if (!camera) {
1836                 printk(KERN_WARNING DRV_PFX "camera control not enabled\n");
1837                 return -ENODEV;
1838         }
1839
1840         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE,
1841                                 SONYPI_CAMERA_MUTE_MASK),
1842                         ITERATIONS_SHORT);
1843
1844         if (spic_dev.camera_power) {
1845                 sony_pic_call2(0x91, 0);
1846                 spic_dev.camera_power = 0;
1847         }
1848         return 0;
1849 }
1850
1851 static int __sony_pic_camera_on(void)
1852 {
1853         int i, j, x;
1854
1855         if (!camera) {
1856                 printk(KERN_WARNING DRV_PFX "camera control not enabled\n");
1857                 return -ENODEV;
1858         }
1859
1860         if (spic_dev.camera_power)
1861                 return 0;
1862
1863         for (j = 5; j > 0; j--) {
1864
1865                 for (x = 0; x < 100 && sony_pic_call2(0x91, 0x1); x++)
1866                         msleep(10);
1867                 sony_pic_call1(0x93);
1868
1869                 for (i = 400; i > 0; i--) {
1870                         if (__sony_pic_camera_ready())
1871                                 break;
1872                         msleep(10);
1873                 }
1874                 if (i)
1875                         break;
1876         }
1877
1878         if (j == 0) {
1879                 printk(KERN_WARNING DRV_PFX "failed to power on camera\n");
1880                 return -ENODEV;
1881         }
1882
1883         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTROL,
1884                                 0x5a),
1885                         ITERATIONS_SHORT);
1886
1887         spic_dev.camera_power = 1;
1888         return 0;
1889 }
1890
1891 /* External camera command (exported to the motion eye v4l driver) */
1892 int sony_pic_camera_command(int command, u8 value)
1893 {
1894         if (!camera)
1895                 return -EIO;
1896
1897         mutex_lock(&spic_dev.lock);
1898
1899         switch (command) {
1900         case SONY_PIC_COMMAND_SETCAMERA:
1901                 if (value)
1902                         __sony_pic_camera_on();
1903                 else
1904                         __sony_pic_camera_off();
1905                 break;
1906         case SONY_PIC_COMMAND_SETCAMERABRIGHTNESS:
1907                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_BRIGHTNESS, value),
1908                                 ITERATIONS_SHORT);
1909                 break;
1910         case SONY_PIC_COMMAND_SETCAMERACONTRAST:
1911                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTRAST, value),
1912                                 ITERATIONS_SHORT);
1913                 break;
1914         case SONY_PIC_COMMAND_SETCAMERAHUE:
1915                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_HUE, value),
1916                                 ITERATIONS_SHORT);
1917                 break;
1918         case SONY_PIC_COMMAND_SETCAMERACOLOR:
1919                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_COLOR, value),
1920                                 ITERATIONS_SHORT);
1921                 break;
1922         case SONY_PIC_COMMAND_SETCAMERASHARPNESS:
1923                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_SHARPNESS, value),
1924                                 ITERATIONS_SHORT);
1925                 break;
1926         case SONY_PIC_COMMAND_SETCAMERAPICTURE:
1927                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE, value),
1928                                 ITERATIONS_SHORT);
1929                 break;
1930         case SONY_PIC_COMMAND_SETCAMERAAGC:
1931                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_AGC, value),
1932                                 ITERATIONS_SHORT);
1933                 break;
1934         default:
1935                 printk(KERN_ERR DRV_PFX "sony_pic_camera_command invalid: %d\n",
1936                        command);
1937                 break;
1938         }
1939         mutex_unlock(&spic_dev.lock);
1940         return 0;
1941 }
1942 EXPORT_SYMBOL(sony_pic_camera_command);
1943
1944 /* gprs/edge modem (SZ460N and SZ210P), thanks to Joshua Wise */
1945 static void __sony_pic_set_wwanpower(u8 state)
1946 {
1947         state = !!state;
1948         if (spic_dev.wwan_power == state)
1949                 return;
1950         sony_pic_call2(0xB0, state);
1951         sony_pic_call1(0x82);
1952         spic_dev.wwan_power = state;
1953 }
1954
1955 static ssize_t sony_pic_wwanpower_store(struct device *dev,
1956                 struct device_attribute *attr,
1957                 const char *buffer, size_t count)
1958 {
1959         unsigned long value;
1960         if (count > 31)
1961                 return -EINVAL;
1962
1963         value = simple_strtoul(buffer, NULL, 10);
1964         mutex_lock(&spic_dev.lock);
1965         __sony_pic_set_wwanpower(value);
1966         mutex_unlock(&spic_dev.lock);
1967
1968         return count;
1969 }
1970
1971 static ssize_t sony_pic_wwanpower_show(struct device *dev,
1972                 struct device_attribute *attr, char *buffer)
1973 {
1974         ssize_t count;
1975         mutex_lock(&spic_dev.lock);
1976         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.wwan_power);
1977         mutex_unlock(&spic_dev.lock);
1978         return count;
1979 }
1980
1981 /* bluetooth subsystem power state */
1982 static void __sony_pic_set_bluetoothpower(u8 state)
1983 {
1984         state = !!state;
1985         if (spic_dev.bluetooth_power == state)
1986                 return;
1987         sony_pic_call2(0x96, state);
1988         sony_pic_call1(0x82);
1989         spic_dev.bluetooth_power = state;
1990 }
1991
1992 static ssize_t sony_pic_bluetoothpower_store(struct device *dev,
1993                 struct device_attribute *attr,
1994                 const char *buffer, size_t count)
1995 {
1996         unsigned long value;
1997         if (count > 31)
1998                 return -EINVAL;
1999
2000         value = simple_strtoul(buffer, NULL, 10);
2001         mutex_lock(&spic_dev.lock);
2002         __sony_pic_set_bluetoothpower(value);
2003         mutex_unlock(&spic_dev.lock);
2004
2005         return count;
2006 }
2007
2008 static ssize_t sony_pic_bluetoothpower_show(struct device *dev,
2009                 struct device_attribute *attr, char *buffer)
2010 {
2011         ssize_t count = 0;
2012         mutex_lock(&spic_dev.lock);
2013         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.bluetooth_power);
2014         mutex_unlock(&spic_dev.lock);
2015         return count;
2016 }
2017
2018 /* fan speed */
2019 /* FAN0 information (reverse engineered from ACPI tables) */
2020 #define SONY_PIC_FAN0_STATUS    0x93
2021 static int sony_pic_set_fanspeed(unsigned long value)
2022 {
2023         return ec_write(SONY_PIC_FAN0_STATUS, value);
2024 }
2025
2026 static int sony_pic_get_fanspeed(u8 *value)
2027 {
2028         return ec_read(SONY_PIC_FAN0_STATUS, value);
2029 }
2030
2031 static ssize_t sony_pic_fanspeed_store(struct device *dev,
2032                 struct device_attribute *attr,
2033                 const char *buffer, size_t count)
2034 {
2035         unsigned long value;
2036         if (count > 31)
2037                 return -EINVAL;
2038
2039         value = simple_strtoul(buffer, NULL, 10);
2040         if (sony_pic_set_fanspeed(value))
2041                 return -EIO;
2042
2043         return count;
2044 }
2045
2046 static ssize_t sony_pic_fanspeed_show(struct device *dev,
2047                 struct device_attribute *attr, char *buffer)
2048 {
2049         u8 value = 0;
2050         if (sony_pic_get_fanspeed(&value))
2051                 return -EIO;
2052
2053         return snprintf(buffer, PAGE_SIZE, "%d\n", value);
2054 }
2055
2056 #define SPIC_ATTR(_name, _mode)                                 \
2057 struct device_attribute spic_attr_##_name = __ATTR(_name,       \
2058                 _mode, sony_pic_## _name ##_show,               \
2059                 sony_pic_## _name ##_store)
2060
2061 static SPIC_ATTR(bluetoothpower, 0644);
2062 static SPIC_ATTR(wwanpower, 0644);
2063 static SPIC_ATTR(fanspeed, 0644);
2064
2065 static struct attribute *spic_attributes[] = {
2066         &spic_attr_bluetoothpower.attr,
2067         &spic_attr_wwanpower.attr,
2068         &spic_attr_fanspeed.attr,
2069         NULL
2070 };
2071
2072 static struct attribute_group spic_attribute_group = {
2073         .attrs = spic_attributes
2074 };
2075
2076 /******** SONYPI compatibility **********/
2077 #ifdef CONFIG_SONYPI_COMPAT
2078
2079 /* battery / brightness / temperature  addresses */
2080 #define SONYPI_BAT_FLAGS        0x81
2081 #define SONYPI_LCD_LIGHT        0x96
2082 #define SONYPI_BAT1_PCTRM       0xa0
2083 #define SONYPI_BAT1_LEFT        0xa2
2084 #define SONYPI_BAT1_MAXRT       0xa4
2085 #define SONYPI_BAT2_PCTRM       0xa8
2086 #define SONYPI_BAT2_LEFT        0xaa
2087 #define SONYPI_BAT2_MAXRT       0xac
2088 #define SONYPI_BAT1_MAXTK       0xb0
2089 #define SONYPI_BAT1_FULL        0xb2
2090 #define SONYPI_BAT2_MAXTK       0xb8
2091 #define SONYPI_BAT2_FULL        0xba
2092 #define SONYPI_TEMP_STATUS      0xC1
2093
2094 struct sonypi_compat_s {
2095         struct fasync_struct    *fifo_async;
2096         struct kfifo            *fifo;
2097         spinlock_t              fifo_lock;
2098         wait_queue_head_t       fifo_proc_list;
2099         atomic_t                open_count;
2100 };
2101 static struct sonypi_compat_s sonypi_compat = {
2102         .open_count = ATOMIC_INIT(0),
2103 };
2104
2105 static int sonypi_misc_fasync(int fd, struct file *filp, int on)
2106 {
2107         return fasync_helper(fd, filp, on, &sonypi_compat.fifo_async);
2108 }
2109
2110 static int sonypi_misc_release(struct inode *inode, struct file *file)
2111 {
2112         atomic_dec(&sonypi_compat.open_count);
2113         return 0;
2114 }
2115
2116 static int sonypi_misc_open(struct inode *inode, struct file *file)
2117 {
2118         /* Flush input queue on first open */
2119         unsigned long flags;
2120
2121         spin_lock_irqsave(sonypi_compat.fifo->lock, flags);
2122
2123         if (atomic_inc_return(&sonypi_compat.open_count) == 1)
2124                 __kfifo_reset(sonypi_compat.fifo);
2125
2126         spin_unlock_irqrestore(sonypi_compat.fifo->lock, flags);
2127
2128         return 0;
2129 }
2130
2131 static ssize_t sonypi_misc_read(struct file *file, char __user *buf,
2132                                 size_t count, loff_t *pos)
2133 {
2134         ssize_t ret;
2135         unsigned char c;
2136
2137         if ((kfifo_len(sonypi_compat.fifo) == 0) &&
2138             (file->f_flags & O_NONBLOCK))
2139                 return -EAGAIN;
2140
2141         ret = wait_event_interruptible(sonypi_compat.fifo_proc_list,
2142                                        kfifo_len(sonypi_compat.fifo) != 0);
2143         if (ret)
2144                 return ret;
2145
2146         while (ret < count &&
2147                (kfifo_get(sonypi_compat.fifo, &c, sizeof(c)) == sizeof(c))) {
2148                 if (put_user(c, buf++))
2149                         return -EFAULT;
2150                 ret++;
2151         }
2152
2153         if (ret > 0) {
2154                 struct inode *inode = file->f_path.dentry->d_inode;
2155                 inode->i_atime = current_fs_time(inode->i_sb);
2156         }
2157
2158         return ret;
2159 }
2160
2161 static unsigned int sonypi_misc_poll(struct file *file, poll_table *wait)
2162 {
2163         poll_wait(file, &sonypi_compat.fifo_proc_list, wait);
2164         if (kfifo_len(sonypi_compat.fifo))
2165                 return POLLIN | POLLRDNORM;
2166         return 0;
2167 }
2168
2169 static int ec_read16(u8 addr, u16 *value)
2170 {
2171         u8 val_lb, val_hb;
2172         if (ec_read(addr, &val_lb))
2173                 return -1;
2174         if (ec_read(addr + 1, &val_hb))
2175                 return -1;
2176         *value = val_lb | (val_hb << 8);
2177         return 0;
2178 }
2179
2180 static long sonypi_misc_ioctl(struct file *fp, unsigned int cmd,
2181                                                         unsigned long arg)
2182 {
2183         int ret = 0;
2184         void __user *argp = (void __user *)arg;
2185         u8 val8;
2186         u16 val16;
2187         int value;
2188
2189         mutex_lock(&spic_dev.lock);
2190         switch (cmd) {
2191         case SONYPI_IOCGBRT:
2192                 if (sony_backlight_device == NULL) {
2193                         ret = -EIO;
2194                         break;
2195                 }
2196                 if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value)) {
2197                         ret = -EIO;
2198                         break;
2199                 }
2200                 val8 = ((value & 0xff) - 1) << 5;
2201                 if (copy_to_user(argp, &val8, sizeof(val8)))
2202                                 ret = -EFAULT;
2203                 break;
2204         case SONYPI_IOCSBRT:
2205                 if (sony_backlight_device == NULL) {
2206                         ret = -EIO;
2207                         break;
2208                 }
2209                 if (copy_from_user(&val8, argp, sizeof(val8))) {
2210                         ret = -EFAULT;
2211                         break;
2212                 }
2213                 if (acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
2214                                 (val8 >> 5) + 1, NULL)) {
2215                         ret = -EIO;
2216                         break;
2217                 }
2218                 /* sync the backlight device status */
2219                 sony_backlight_device->props.brightness =
2220                     sony_backlight_get_brightness(sony_backlight_device);
2221                 break;
2222         case SONYPI_IOCGBAT1CAP:
2223                 if (ec_read16(SONYPI_BAT1_FULL, &val16)) {
2224                         ret = -EIO;
2225                         break;
2226                 }
2227                 if (copy_to_user(argp, &val16, sizeof(val16)))
2228                         ret = -EFAULT;
2229                 break;
2230         case SONYPI_IOCGBAT1REM:
2231                 if (ec_read16(SONYPI_BAT1_LEFT, &val16)) {
2232                         ret = -EIO;
2233                         break;
2234                 }
2235                 if (copy_to_user(argp, &val16, sizeof(val16)))
2236                         ret = -EFAULT;
2237                 break;
2238         case SONYPI_IOCGBAT2CAP:
2239                 if (ec_read16(SONYPI_BAT2_FULL, &val16)) {
2240                         ret = -EIO;
2241                         break;
2242                 }
2243                 if (copy_to_user(argp, &val16, sizeof(val16)))
2244                         ret = -EFAULT;
2245                 break;
2246         case SONYPI_IOCGBAT2REM:
2247                 if (ec_read16(SONYPI_BAT2_LEFT, &val16)) {
2248                         ret = -EIO;
2249                         break;
2250                 }
2251                 if (copy_to_user(argp, &val16, sizeof(val16)))
2252                         ret = -EFAULT;
2253                 break;
2254         case SONYPI_IOCGBATFLAGS:
2255                 if (ec_read(SONYPI_BAT_FLAGS, &val8)) {
2256                         ret = -EIO;
2257                         break;
2258                 }
2259                 val8 &= 0x07;
2260                 if (copy_to_user(argp, &val8, sizeof(val8)))
2261                         ret = -EFAULT;
2262                 break;
2263         case SONYPI_IOCGBLUE:
2264                 val8 = spic_dev.bluetooth_power;
2265                 if (copy_to_user(argp, &val8, sizeof(val8)))
2266                         ret = -EFAULT;
2267                 break;
2268         case SONYPI_IOCSBLUE:
2269                 if (copy_from_user(&val8, argp, sizeof(val8))) {
2270                         ret = -EFAULT;
2271                         break;
2272                 }
2273                 __sony_pic_set_bluetoothpower(val8);
2274                 break;
2275         /* FAN Controls */
2276         case SONYPI_IOCGFAN:
2277                 if (sony_pic_get_fanspeed(&val8)) {
2278                         ret = -EIO;
2279                         break;
2280                 }
2281                 if (copy_to_user(argp, &val8, sizeof(val8)))
2282                         ret = -EFAULT;
2283                 break;
2284         case SONYPI_IOCSFAN:
2285                 if (copy_from_user(&val8, argp, sizeof(val8))) {
2286                         ret = -EFAULT;
2287                         break;
2288                 }
2289                 if (sony_pic_set_fanspeed(val8))
2290                         ret = -EIO;
2291                 break;
2292         /* GET Temperature (useful under APM) */
2293         case SONYPI_IOCGTEMP:
2294                 if (ec_read(SONYPI_TEMP_STATUS, &val8)) {
2295                         ret = -EIO;
2296                         break;
2297                 }
2298                 if (copy_to_user(argp, &val8, sizeof(val8)))
2299                         ret = -EFAULT;
2300                 break;
2301         default:
2302                 ret = -EINVAL;
2303         }
2304         mutex_unlock(&spic_dev.lock);
2305         return ret;
2306 }
2307
2308 static const struct file_operations sonypi_misc_fops = {
2309         .owner          = THIS_MODULE,
2310         .read           = sonypi_misc_read,
2311         .poll           = sonypi_misc_poll,
2312         .open           = sonypi_misc_open,
2313         .release        = sonypi_misc_release,
2314         .fasync         = sonypi_misc_fasync,
2315         .unlocked_ioctl = sonypi_misc_ioctl,
2316 };
2317
2318 static struct miscdevice sonypi_misc_device = {
2319         .minor          = MISC_DYNAMIC_MINOR,
2320         .name           = "sonypi",
2321         .fops           = &sonypi_misc_fops,
2322 };
2323
2324 static void sonypi_compat_report_event(u8 event)
2325 {
2326         kfifo_put(sonypi_compat.fifo, (unsigned char *)&event, sizeof(event));
2327         kill_fasync(&sonypi_compat.fifo_async, SIGIO, POLL_IN);
2328         wake_up_interruptible(&sonypi_compat.fifo_proc_list);
2329 }
2330
2331 static int sonypi_compat_init(void)
2332 {
2333         int error;
2334
2335         spin_lock_init(&sonypi_compat.fifo_lock);
2336         sonypi_compat.fifo = kfifo_alloc(SONY_LAPTOP_BUF_SIZE, GFP_KERNEL,
2337                                          &sonypi_compat.fifo_lock);
2338         if (IS_ERR(sonypi_compat.fifo)) {
2339                 printk(KERN_ERR DRV_PFX "kfifo_alloc failed\n");
2340                 return PTR_ERR(sonypi_compat.fifo);
2341         }
2342
2343         init_waitqueue_head(&sonypi_compat.fifo_proc_list);
2344
2345         if (minor != -1)
2346                 sonypi_misc_device.minor = minor;
2347         error = misc_register(&sonypi_misc_device);
2348         if (error) {
2349                 printk(KERN_ERR DRV_PFX "misc_register failed\n");
2350                 goto err_free_kfifo;
2351         }
2352         if (minor == -1)
2353                 printk(KERN_INFO DRV_PFX "device allocated minor is %d\n",
2354                        sonypi_misc_device.minor);
2355
2356         return 0;
2357
2358 err_free_kfifo:
2359         kfifo_free(sonypi_compat.fifo);
2360         return error;
2361 }
2362
2363 static void sonypi_compat_exit(void)
2364 {
2365         misc_deregister(&sonypi_misc_device);
2366         kfifo_free(sonypi_compat.fifo);
2367 }
2368 #else
2369 static int sonypi_compat_init(void) { return 0; }
2370 static void sonypi_compat_exit(void) { }
2371 static void sonypi_compat_report_event(u8 event) { }
2372 #endif /* CONFIG_SONYPI_COMPAT */
2373
2374 /*
2375  * ACPI callbacks
2376  */
2377 static acpi_status
2378 sony_pic_read_possible_resource(struct acpi_resource *resource, void *context)
2379 {
2380         u32 i;
2381         struct sony_pic_dev *dev = (struct sony_pic_dev *)context;
2382
2383         switch (resource->type) {
2384         case ACPI_RESOURCE_TYPE_START_DEPENDENT:
2385                 {
2386                         /* start IO enumeration */
2387                         struct sony_pic_ioport *ioport = kzalloc(sizeof(*ioport), GFP_KERNEL);
2388                         if (!ioport)
2389                                 return AE_ERROR;
2390
2391                         list_add(&ioport->list, &dev->ioports);
2392                         return AE_OK;
2393                 }
2394
2395         case ACPI_RESOURCE_TYPE_END_DEPENDENT:
2396                 /* end IO enumeration */
2397                 return AE_OK;
2398
2399         case ACPI_RESOURCE_TYPE_IRQ:
2400                 {
2401                         struct acpi_resource_irq *p = &resource->data.irq;
2402                         struct sony_pic_irq *interrupt = NULL;
2403                         if (!p || !p->interrupt_count) {
2404                                 /*
2405                                  * IRQ descriptors may have no IRQ# bits set,
2406                                  * particularly those those w/ _STA disabled
2407                                  */
2408                                 dprintk("Blank IRQ resource\n");
2409                                 return AE_OK;
2410                         }
2411                         for (i = 0; i < p->interrupt_count; i++) {
2412                                 if (!p->interrupts[i]) {
2413                                         printk(KERN_WARNING DRV_PFX
2414                                                         "Invalid IRQ %d\n",
2415                                                         p->interrupts[i]);
2416                                         continue;
2417                                 }
2418                                 interrupt = kzalloc(sizeof(*interrupt),
2419                                                 GFP_KERNEL);
2420                                 if (!interrupt)
2421                                         return AE_ERROR;
2422
2423                                 list_add(&interrupt->list, &dev->interrupts);
2424                                 interrupt->irq.triggering = p->triggering;
2425                                 interrupt->irq.polarity = p->polarity;
2426                                 interrupt->irq.sharable = p->sharable;
2427                                 interrupt->irq.interrupt_count = 1;
2428                                 interrupt->irq.interrupts[0] = p->interrupts[i];
2429                         }
2430                         return AE_OK;
2431                 }
2432         case ACPI_RESOURCE_TYPE_IO:
2433                 {
2434                         struct acpi_resource_io *io = &resource->data.io;
2435                         struct sony_pic_ioport *ioport =
2436                                 list_first_entry(&dev->ioports, struct sony_pic_ioport, list);
2437                         if (!io) {
2438                                 dprintk("Blank IO resource\n");
2439                                 return AE_OK;
2440                         }
2441
2442                         if (!ioport->io1.minimum) {
2443                                 memcpy(&ioport->io1, io, sizeof(*io));
2444                                 dprintk("IO1 at 0x%.4x (0x%.2x)\n", ioport->io1.minimum,
2445                                                 ioport->io1.address_length);
2446                         }
2447                         else if (!ioport->io2.minimum) {
2448                                 memcpy(&ioport->io2, io, sizeof(*io));
2449                                 dprintk("IO2 at 0x%.4x (0x%.2x)\n", ioport->io2.minimum,
2450                                                 ioport->io2.address_length);
2451                         }
2452                         else {
2453                                 printk(KERN_ERR DRV_PFX "Unknown SPIC Type, more than 2 IO Ports\n");
2454                                 return AE_ERROR;
2455                         }
2456                         return AE_OK;
2457                 }
2458         default:
2459                 dprintk("Resource %d isn't an IRQ nor an IO port\n",
2460                                 resource->type);
2461
2462         case ACPI_RESOURCE_TYPE_END_TAG:
2463                 return AE_OK;
2464         }
2465         return AE_CTRL_TERMINATE;
2466 }
2467
2468 static int sony_pic_possible_resources(struct acpi_device *device)
2469 {
2470         int result = 0;
2471         acpi_status status = AE_OK;
2472
2473         if (!device)
2474                 return -EINVAL;
2475
2476         /* get device status */
2477         /* see acpi_pci_link_get_current acpi_pci_link_get_possible */
2478         dprintk("Evaluating _STA\n");
2479         result = acpi_bus_get_status(device);
2480         if (result) {
2481                 printk(KERN_WARNING DRV_PFX "Unable to read status\n");
2482                 goto end;
2483         }
2484
2485         if (!device->status.enabled)
2486                 dprintk("Device disabled\n");
2487         else
2488                 dprintk("Device enabled\n");
2489
2490         /*
2491          * Query and parse 'method'
2492          */
2493         dprintk("Evaluating %s\n", METHOD_NAME__PRS);
2494         status = acpi_walk_resources(device->handle, METHOD_NAME__PRS,
2495                         sony_pic_read_possible_resource, &spic_dev);
2496         if (ACPI_FAILURE(status)) {
2497                 printk(KERN_WARNING DRV_PFX
2498                                 "Failure evaluating %s\n",
2499                                 METHOD_NAME__PRS);
2500                 result = -ENODEV;
2501         }
2502 end:
2503         return result;
2504 }
2505
2506 /*
2507  *  Disable the spic device by calling its _DIS method
2508  */
2509 static int sony_pic_disable(struct acpi_device *device)
2510 {
2511         acpi_status ret = acpi_evaluate_object(device->handle, "_DIS", NULL,
2512                                                NULL);
2513
2514         if (ACPI_FAILURE(ret) && ret != AE_NOT_FOUND)
2515                 return -ENXIO;
2516
2517         dprintk("Device disabled\n");
2518         return 0;
2519 }
2520
2521
2522 /*
2523  *  Based on drivers/acpi/pci_link.c:acpi_pci_link_set
2524  *
2525  *  Call _SRS to set current resources
2526  */
2527 static int sony_pic_enable(struct acpi_device *device,
2528                 struct sony_pic_ioport *ioport, struct sony_pic_irq *irq)
2529 {
2530         acpi_status status;
2531         int result = 0;
2532         /* Type 1 resource layout is:
2533          *    IO
2534          *    IO
2535          *    IRQNoFlags
2536          *    End
2537          *
2538          * Type 2 and 3 resource layout is:
2539          *    IO
2540          *    IRQNoFlags
2541          *    End
2542          */
2543         struct {
2544                 struct acpi_resource res1;
2545                 struct acpi_resource res2;
2546                 struct acpi_resource res3;
2547                 struct acpi_resource res4;
2548         } *resource;
2549         struct acpi_buffer buffer = { 0, NULL };
2550
2551         if (!ioport || !irq)
2552                 return -EINVAL;
2553
2554         /* init acpi_buffer */
2555         resource = kzalloc(sizeof(*resource) + 1, GFP_KERNEL);
2556         if (!resource)
2557                 return -ENOMEM;
2558
2559         buffer.length = sizeof(*resource) + 1;
2560         buffer.pointer = resource;
2561
2562         /* setup Type 1 resources */
2563         if (spic_dev.control->model == SONYPI_DEVICE_TYPE1) {
2564
2565                 /* setup io resources */
2566                 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
2567                 resource->res1.length = sizeof(struct acpi_resource);
2568                 memcpy(&resource->res1.data.io, &ioport->io1,
2569                                 sizeof(struct acpi_resource_io));
2570
2571                 resource->res2.type = ACPI_RESOURCE_TYPE_IO;
2572                 resource->res2.length = sizeof(struct acpi_resource);
2573                 memcpy(&resource->res2.data.io, &ioport->io2,
2574                                 sizeof(struct acpi_resource_io));
2575
2576                 /* setup irq resource */
2577                 resource->res3.type = ACPI_RESOURCE_TYPE_IRQ;
2578                 resource->res3.length = sizeof(struct acpi_resource);
2579                 memcpy(&resource->res3.data.irq, &irq->irq,
2580                                 sizeof(struct acpi_resource_irq));
2581                 /* we requested a shared irq */
2582                 resource->res3.data.irq.sharable = ACPI_SHARED;
2583
2584                 resource->res4.type = ACPI_RESOURCE_TYPE_END_TAG;
2585
2586         }
2587         /* setup Type 2/3 resources */
2588         else {
2589                 /* setup io resource */
2590                 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
2591                 resource->res1.length = sizeof(struct acpi_resource);
2592                 memcpy(&resource->res1.data.io, &ioport->io1,
2593                                 sizeof(struct acpi_resource_io));
2594
2595                 /* setup irq resource */
2596                 resource->res2.type = ACPI_RESOURCE_TYPE_IRQ;
2597                 resource->res2.length = sizeof(struct acpi_resource);
2598                 memcpy(&resource->res2.data.irq, &irq->irq,
2599                                 sizeof(struct acpi_resource_irq));
2600                 /* we requested a shared irq */
2601                 resource->res2.data.irq.sharable = ACPI_SHARED;
2602
2603                 resource->res3.type = ACPI_RESOURCE_TYPE_END_TAG;
2604         }
2605
2606         /* Attempt to set the resource */
2607         dprintk("Evaluating _SRS\n");
2608         status = acpi_set_current_resources(device->handle, &buffer);
2609
2610         /* check for total failure */
2611         if (ACPI_FAILURE(status)) {
2612                 printk(KERN_ERR DRV_PFX "Error evaluating _SRS\n");
2613                 result = -ENODEV;
2614                 goto end;
2615         }
2616
2617         /* Necessary device initializations calls (from sonypi) */
2618         sony_pic_call1(0x82);
2619         sony_pic_call2(0x81, 0xff);
2620         sony_pic_call1(compat ? 0x92 : 0x82);
2621
2622 end:
2623         kfree(resource);
2624         return result;
2625 }
2626
2627 /*****************
2628  *
2629  * ISR: some event is available
2630  *
2631  *****************/
2632 static irqreturn_t sony_pic_irq(int irq, void *dev_id)
2633 {
2634         int i, j;
2635         u8 ev = 0;
2636         u8 data_mask = 0;
2637         u8 device_event = 0;
2638
2639         struct sony_pic_dev *dev = (struct sony_pic_dev *) dev_id;
2640
2641         ev = inb_p(dev->cur_ioport->io1.minimum);
2642         if (dev->cur_ioport->io2.minimum)
2643                 data_mask = inb_p(dev->cur_ioport->io2.minimum);
2644         else
2645                 data_mask = inb_p(dev->cur_ioport->io1.minimum +
2646                                 dev->control->evport_offset);
2647
2648         dprintk("event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
2649                         ev, data_mask, dev->cur_ioport->io1.minimum,
2650                         dev->control->evport_offset);
2651
2652         if (ev == 0x00 || ev == 0xff)
2653                 return IRQ_HANDLED;
2654
2655         for (i = 0; dev->control->event_types[i].mask; i++) {
2656
2657                 if ((data_mask & dev->control->event_types[i].data) !=
2658                     dev->control->event_types[i].data)
2659                         continue;
2660
2661                 if (!(mask & dev->control->event_types[i].mask))
2662                         continue;
2663
2664                 for (j = 0; dev->control->event_types[i].events[j].event; j++) {
2665                         if (ev == dev->control->event_types[i].events[j].data) {
2666                                 device_event =
2667                                         dev->control->
2668                                                 event_types[i].events[j].event;
2669                                 goto found;
2670                         }
2671                 }
2672         }
2673         /* Still not able to decode the event try to pass
2674          * it over to the minidriver
2675          */
2676         if (dev->control->handle_irq &&
2677                         dev->control->handle_irq(data_mask, ev) == 0)
2678                 return IRQ_HANDLED;
2679
2680         dprintk("unknown event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
2681                         ev, data_mask, dev->cur_ioport->io1.minimum,
2682                         dev->control->evport_offset);
2683         return IRQ_HANDLED;
2684
2685 found:
2686         sony_laptop_report_input_event(device_event);
2687         acpi_bus_generate_proc_event(dev->acpi_dev, 1, device_event);
2688         sonypi_compat_report_event(device_event);
2689
2690         return IRQ_HANDLED;
2691 }
2692
2693 /*****************
2694  *
2695  *  ACPI driver
2696  *
2697  *****************/
2698 static int sony_pic_remove(struct acpi_device *device, int type)
2699 {
2700         struct sony_pic_ioport *io, *tmp_io;
2701         struct sony_pic_irq *irq, *tmp_irq;
2702
2703         if (sony_pic_disable(device)) {
2704                 printk(KERN_ERR DRV_PFX "Couldn't disable device.\n");
2705                 return -ENXIO;
2706         }
2707
2708         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
2709         release_region(spic_dev.cur_ioport->io1.minimum,
2710                         spic_dev.cur_ioport->io1.address_length);
2711         if (spic_dev.cur_ioport->io2.minimum)
2712                 release_region(spic_dev.cur_ioport->io2.minimum,
2713                                 spic_dev.cur_ioport->io2.address_length);
2714
2715         sonypi_compat_exit();
2716
2717         sony_laptop_remove_input();
2718
2719         /* pf attrs */
2720         sysfs_remove_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
2721         sony_pf_remove();
2722
2723         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
2724                 list_del(&io->list);
2725                 kfree(io);
2726         }
2727         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
2728                 list_del(&irq->list);
2729                 kfree(irq);
2730         }
2731         spic_dev.cur_ioport = NULL;
2732         spic_dev.cur_irq = NULL;
2733
2734         dprintk(SONY_PIC_DRIVER_NAME " removed.\n");
2735         return 0;
2736 }
2737
2738 static int sony_pic_add(struct acpi_device *device)
2739 {
2740         int result;
2741         struct sony_pic_ioport *io, *tmp_io;
2742         struct sony_pic_irq *irq, *tmp_irq;
2743
2744         printk(KERN_INFO DRV_PFX "%s v%s.\n",
2745                 SONY_PIC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
2746
2747         spic_dev.acpi_dev = device;
2748         strcpy(acpi_device_class(device), "sony/hotkey");
2749         sony_pic_detect_device_type(&spic_dev);
2750         mutex_init(&spic_dev.lock);
2751
2752         /* read _PRS resources */
2753         result = sony_pic_possible_resources(device);
2754         if (result) {
2755                 printk(KERN_ERR DRV_PFX
2756                                 "Unable to read possible resources.\n");
2757                 goto err_free_resources;
2758         }
2759
2760         /* setup input devices and helper fifo */
2761         result = sony_laptop_setup_input(device);
2762         if (result) {
2763                 printk(KERN_ERR DRV_PFX
2764                                 "Unable to create input devices.\n");
2765                 goto err_free_resources;
2766         }
2767
2768         if (sonypi_compat_init())
2769                 goto err_remove_input;
2770
2771         /* request io port */
2772         list_for_each_entry_reverse(io, &spic_dev.ioports, list) {
2773                 if (request_region(io->io1.minimum, io->io1.address_length,
2774                                         "Sony Programable I/O Device")) {
2775                         dprintk("I/O port1: 0x%.4x (0x%.4x) + 0x%.2x\n",
2776                                         io->io1.minimum, io->io1.maximum,
2777                                         io->io1.address_length);
2778                         /* Type 1 have 2 ioports */
2779                         if (io->io2.minimum) {
2780                                 if (request_region(io->io2.minimum,
2781                                                 io->io2.address_length,
2782                                                 "Sony Programable I/O Device")) {
2783                                         dprintk("I/O port2: 0x%.4x (0x%.4x) + 0x%.2x\n",
2784                                                         io->io2.minimum, io->io2.maximum,
2785                                                         io->io2.address_length);
2786                                         spic_dev.cur_ioport = io;
2787                                         break;
2788                                 }
2789                                 else {
2790                                         dprintk("Unable to get I/O port2: "
2791                                                         "0x%.4x (0x%.4x) + 0x%.2x\n",
2792                                                         io->io2.minimum, io->io2.maximum,
2793                                                         io->io2.address_length);
2794                                         release_region(io->io1.minimum,
2795                                                         io->io1.address_length);
2796                                 }
2797                         }
2798                         else {
2799                                 spic_dev.cur_ioport = io;
2800                                 break;
2801                         }
2802                 }
2803         }
2804         if (!spic_dev.cur_ioport) {
2805                 printk(KERN_ERR DRV_PFX "Failed to request_region.\n");
2806                 result = -ENODEV;
2807                 goto err_remove_compat;
2808         }
2809
2810         /* request IRQ */
2811         list_for_each_entry_reverse(irq, &spic_dev.interrupts, list) {
2812                 if (!request_irq(irq->irq.interrupts[0], sony_pic_irq,
2813                                         IRQF_SHARED, "sony-laptop", &spic_dev)) {
2814                         dprintk("IRQ: %d - triggering: %d - "
2815                                         "polarity: %d - shr: %d\n",
2816                                         irq->irq.interrupts[0],
2817                                         irq->irq.triggering,
2818                                         irq->irq.polarity,
2819                                         irq->irq.sharable);
2820                         spic_dev.cur_irq = irq;
2821                         break;
2822                 }
2823         }
2824         if (!spic_dev.cur_irq) {
2825                 printk(KERN_ERR DRV_PFX "Failed to request_irq.\n");
2826                 result = -ENODEV;
2827                 goto err_release_region;
2828         }
2829
2830         /* set resource status _SRS */
2831         result = sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
2832         if (result) {
2833                 printk(KERN_ERR DRV_PFX "Couldn't enable device.\n");
2834                 goto err_free_irq;
2835         }
2836
2837         spic_dev.bluetooth_power = -1;
2838         /* create device attributes */
2839         result = sony_pf_add();
2840         if (result)
2841                 goto err_disable_device;
2842
2843         result = sysfs_create_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
2844         if (result)
2845                 goto err_remove_pf;
2846
2847         return 0;
2848
2849 err_remove_pf:
2850         sony_pf_remove();
2851
2852 err_disable_device:
2853         sony_pic_disable(device);
2854
2855 err_free_irq:
2856         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
2857
2858 err_release_region:
2859         release_region(spic_dev.cur_ioport->io1.minimum,
2860                         spic_dev.cur_ioport->io1.address_length);
2861         if (spic_dev.cur_ioport->io2.minimum)
2862                 release_region(spic_dev.cur_ioport->io2.minimum,
2863                                 spic_dev.cur_ioport->io2.address_length);
2864
2865 err_remove_compat:
2866         sonypi_compat_exit();
2867
2868 err_remove_input:
2869         sony_laptop_remove_input();
2870
2871 err_free_resources:
2872         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
2873                 list_del(&io->list);
2874                 kfree(io);
2875         }
2876         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
2877                 list_del(&irq->list);
2878                 kfree(irq);
2879         }
2880         spic_dev.cur_ioport = NULL;
2881         spic_dev.cur_irq = NULL;
2882
2883         return result;
2884 }
2885
2886 static int sony_pic_suspend(struct acpi_device *device, pm_message_t state)
2887 {
2888         if (sony_pic_disable(device))
2889                 return -ENXIO;
2890         return 0;
2891 }
2892
2893 static int sony_pic_resume(struct acpi_device *device)
2894 {
2895         sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
2896         return 0;
2897 }
2898
2899 static const struct acpi_device_id sony_pic_device_ids[] = {
2900         {SONY_PIC_HID, 0},
2901         {"", 0},
2902 };
2903
2904 static struct acpi_driver sony_pic_driver = {
2905         .name = SONY_PIC_DRIVER_NAME,
2906         .class = SONY_PIC_CLASS,
2907         .ids = sony_pic_device_ids,
2908         .owner = THIS_MODULE,
2909         .ops = {
2910                 .add = sony_pic_add,
2911                 .remove = sony_pic_remove,
2912                 .suspend = sony_pic_suspend,
2913                 .resume = sony_pic_resume,
2914                 },
2915 };
2916
2917 static struct dmi_system_id __initdata sonypi_dmi_table[] = {
2918         {
2919                 .ident = "Sony Vaio",
2920                 .matches = {
2921                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
2922                         DMI_MATCH(DMI_PRODUCT_NAME, "PCG-"),
2923                 },
2924         },
2925         {
2926                 .ident = "Sony Vaio",
2927                 .matches = {
2928                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
2929                         DMI_MATCH(DMI_PRODUCT_NAME, "VGN-"),
2930                 },
2931         },
2932         { }
2933 };
2934
2935 static int __init sony_laptop_init(void)
2936 {
2937         int result;
2938
2939         if (!no_spic && dmi_check_system(sonypi_dmi_table)) {
2940                 result = acpi_bus_register_driver(&sony_pic_driver);
2941                 if (result) {
2942                         printk(KERN_ERR DRV_PFX
2943                                         "Unable to register SPIC driver.");
2944                         goto out;
2945                 }
2946         }
2947
2948         result = acpi_bus_register_driver(&sony_nc_driver);
2949         if (result) {
2950                 printk(KERN_ERR DRV_PFX "Unable to register SNC driver.");
2951                 goto out_unregister_pic;
2952         }
2953
2954         return 0;
2955
2956 out_unregister_pic:
2957         if (!no_spic)
2958                 acpi_bus_unregister_driver(&sony_pic_driver);
2959 out:
2960         return result;
2961 }
2962
2963 static void __exit sony_laptop_exit(void)
2964 {
2965         acpi_bus_unregister_driver(&sony_nc_driver);
2966         if (!no_spic)
2967                 acpi_bus_unregister_driver(&sony_pic_driver);
2968 }
2969
2970 module_init(sony_laptop_init);
2971 module_exit(sony_laptop_exit);