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 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  46
  47 #include <linux/kernel.h>
  48 #include <linux/module.h>
  49 #include <linux/moduleparam.h>
  50 #include <linux/init.h>
  51 #include <linux/types.h>
  52 #include <linux/backlight.h>
  53 #include <linux/platform_device.h>
  54 #include <linux/err.h>
  55 #include <linux/dmi.h>
  56 #include <linux/pci.h>
  57 #include <linux/interrupt.h>
  58 #include <linux/delay.h>
  59 #include <linux/input.h>
  60 #include <linux/kfifo.h>
  61 #include <linux/workqueue.h>
  62 #include <linux/acpi.h>
  63 #include <linux/slab.h>
  64 #include <acpi/acpi_drivers.h>
  65 #include <acpi/acpi_bus.h>
  66 #include <asm/uaccess.h>
  67 #include <linux/sonypi.h>
  68 #include <linux/sony-laptop.h>
  69 #include <linux/rfkill.h>
  70 #ifdef CONFIG_SONYPI_COMPAT
  71 #include <linux/poll.h>
  72 #include <linux/miscdevice.h>
  73 #endif
  74
  75 #define dprintk(fmt, ...)                       \
  76 do {                                            \
  77         if (debug)                              \
  78                 pr_warn(fmt, ##__VA_ARGS__);    \
  79 } while (0)
  80
  81 #define SONY_LAPTOP_DRIVER_VERSION      "0.6"
  82
  83 #define SONY_NC_CLASS           "sony-nc"
  84 #define SONY_NC_HID             "SNY5001"
  85 #define SONY_NC_DRIVER_NAME     "Sony Notebook Control Driver"
  86
  87 #define SONY_PIC_CLASS          "sony-pic"
  88 #define SONY_PIC_HID            "SNY6001"
  89 #define SONY_PIC_DRIVER_NAME    "Sony Programmable IO Control Driver"
  90
  91 MODULE_AUTHOR("Stelian Pop, Mattia Dongili");
  92 MODULE_DESCRIPTION("Sony laptop extras driver (SPIC and SNC ACPI device)");
  93 MODULE_LICENSE("GPL");
  94 MODULE_VERSION(SONY_LAPTOP_DRIVER_VERSION);
  95
  96 static int debug;
  97 module_param(debug, int, 0);
  98 MODULE_PARM_DESC(debug, "set this to 1 (and RTFM) if you want to help "
  99                  "the development of this driver");
 100
 101 static int no_spic;             /* = 0 */
 102 module_param(no_spic, int, 0444);
 103 MODULE_PARM_DESC(no_spic,
 104                  "set this if you don't want to enable the SPIC device");
 105
 106 static int compat;              /* = 0 */
 107 module_param(compat, int, 0444);
 108 MODULE_PARM_DESC(compat,
 109                  "set this if you want to enable backward compatibility mode");
 110
 111 static unsigned long mask = 0xffffffff;
 112 module_param(mask, ulong, 0644);
 113 MODULE_PARM_DESC(mask,
 114                  "set this to the mask of event you want to enable (see doc)");
 115
 116 static int camera;              /* = 0 */
 117 module_param(camera, int, 0444);
 118 MODULE_PARM_DESC(camera,
 119                  "set this to 1 to enable Motion Eye camera controls "
 120                  "(only use it if you have a C1VE or C1VN model)");
 121
 122 #ifdef CONFIG_SONYPI_COMPAT
 123 static int minor = -1;
 124 module_param(minor, int, 0);
 125 MODULE_PARM_DESC(minor,
 126                  "minor number of the misc device for the SPIC compatibility code, "
 127                  "default is -1 (automatic)");
 128 #endif
 129
 130 static int kbd_backlight;       /* = 1 */
 131 module_param(kbd_backlight, int, 0444);
 132 MODULE_PARM_DESC(kbd_backlight,
 133                  "set this to 0 to disable keyboard backlight, "
 134                  "1 to enable it (default: 0)");
 135
 136 static int kbd_backlight_timeout;       /* = 0 */
 137 module_param(kbd_backlight_timeout, int, 0444);
 138 MODULE_PARM_DESC(kbd_backlight_timeout,
 139                  "set this to 0 to set the default 10 seconds timeout, "
 140                  "1 for 30 seconds, 2 for 60 seconds and 3 to disable timeout "
 141                  "(default: 0)");
 142
 143 static void sony_nc_kbd_backlight_resume(void);
 144
 145 enum sony_nc_rfkill {
 146         SONY_WIFI,
 147         SONY_BLUETOOTH,
 148         SONY_WWAN,
 149         SONY_WIMAX,
 150         N_SONY_RFKILL,
 151 };
 152
 153 static int sony_rfkill_handle;
 154 static struct rfkill *sony_rfkill_devices[N_SONY_RFKILL];
 155 static int sony_rfkill_address[N_SONY_RFKILL] = {0x300, 0x500, 0x700, 0x900};
 156 static void sony_nc_rfkill_update(void);
 157
 158 /*********** Input Devices ***********/
 159
 160 #define SONY_LAPTOP_BUF_SIZE    128
 161 struct sony_laptop_input_s {
 162         atomic_t                users;
 163         struct input_dev        *jog_dev;
 164         struct input_dev        *key_dev;
 165         struct kfifo            fifo;
 166         spinlock_t              fifo_lock;
 167         struct timer_list       release_key_timer;
 168 };
 169
 170 static struct sony_laptop_input_s sony_laptop_input = {
 171         .users = ATOMIC_INIT(0),
 172 };
 173
 174 struct sony_laptop_keypress {
 175         struct input_dev *dev;
 176         int key;
 177 };
 178
 179 /* Correspondance table between sonypi events
 180  * and input layer indexes in the keymap
 181  */
 182 static int sony_laptop_input_index[] = {
 183         -1,     /*  0 no event */
 184         -1,     /*  1 SONYPI_EVENT_JOGDIAL_DOWN */
 185         -1,     /*  2 SONYPI_EVENT_JOGDIAL_UP */
 186         -1,     /*  3 SONYPI_EVENT_JOGDIAL_DOWN_PRESSED */
 187         -1,     /*  4 SONYPI_EVENT_JOGDIAL_UP_PRESSED */
 188         -1,     /*  5 SONYPI_EVENT_JOGDIAL_PRESSED */
 189         -1,     /*  6 SONYPI_EVENT_JOGDIAL_RELEASED */
 190          0,     /*  7 SONYPI_EVENT_CAPTURE_PRESSED */
 191          1,     /*  8 SONYPI_EVENT_CAPTURE_RELEASED */
 192          2,     /*  9 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
 193          3,     /* 10 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
 194          4,     /* 11 SONYPI_EVENT_FNKEY_ESC */
 195          5,     /* 12 SONYPI_EVENT_FNKEY_F1 */
 196          6,     /* 13 SONYPI_EVENT_FNKEY_F2 */
 197          7,     /* 14 SONYPI_EVENT_FNKEY_F3 */
 198          8,     /* 15 SONYPI_EVENT_FNKEY_F4 */
 199          9,     /* 16 SONYPI_EVENT_FNKEY_F5 */
 200         10,     /* 17 SONYPI_EVENT_FNKEY_F6 */
 201         11,     /* 18 SONYPI_EVENT_FNKEY_F7 */
 202         12,     /* 19 SONYPI_EVENT_FNKEY_F8 */
 203         13,     /* 20 SONYPI_EVENT_FNKEY_F9 */
 204         14,     /* 21 SONYPI_EVENT_FNKEY_F10 */
 205         15,     /* 22 SONYPI_EVENT_FNKEY_F11 */
 206         16,     /* 23 SONYPI_EVENT_FNKEY_F12 */
 207         17,     /* 24 SONYPI_EVENT_FNKEY_1 */
 208         18,     /* 25 SONYPI_EVENT_FNKEY_2 */
 209         19,     /* 26 SONYPI_EVENT_FNKEY_D */
 210         20,     /* 27 SONYPI_EVENT_FNKEY_E */
 211         21,     /* 28 SONYPI_EVENT_FNKEY_F */
 212         22,     /* 29 SONYPI_EVENT_FNKEY_S */
 213         23,     /* 30 SONYPI_EVENT_FNKEY_B */
 214         24,     /* 31 SONYPI_EVENT_BLUETOOTH_PRESSED */
 215         25,     /* 32 SONYPI_EVENT_PKEY_P1 */
 216         26,     /* 33 SONYPI_EVENT_PKEY_P2 */
 217         27,     /* 34 SONYPI_EVENT_PKEY_P3 */
 218         28,     /* 35 SONYPI_EVENT_BACK_PRESSED */
 219         -1,     /* 36 SONYPI_EVENT_LID_CLOSED */
 220         -1,     /* 37 SONYPI_EVENT_LID_OPENED */
 221         29,     /* 38 SONYPI_EVENT_BLUETOOTH_ON */
 222         30,     /* 39 SONYPI_EVENT_BLUETOOTH_OFF */
 223         31,     /* 40 SONYPI_EVENT_HELP_PRESSED */
 224         32,     /* 41 SONYPI_EVENT_FNKEY_ONLY */
 225         33,     /* 42 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
 226         34,     /* 43 SONYPI_EVENT_JOGDIAL_FAST_UP */
 227         35,     /* 44 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
 228         36,     /* 45 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
 229         37,     /* 46 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
 230         38,     /* 47 SONYPI_EVENT_JOGDIAL_VFAST_UP */
 231         39,     /* 48 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
 232         40,     /* 49 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
 233         41,     /* 50 SONYPI_EVENT_ZOOM_PRESSED */
 234         42,     /* 51 SONYPI_EVENT_THUMBPHRASE_PRESSED */
 235         43,     /* 52 SONYPI_EVENT_MEYE_FACE */
 236         44,     /* 53 SONYPI_EVENT_MEYE_OPPOSITE */
 237         45,     /* 54 SONYPI_EVENT_MEMORYSTICK_INSERT */
 238         46,     /* 55 SONYPI_EVENT_MEMORYSTICK_EJECT */
 239         -1,     /* 56 SONYPI_EVENT_ANYBUTTON_RELEASED */
 240         -1,     /* 57 SONYPI_EVENT_BATTERY_INSERT */
 241         -1,     /* 58 SONYPI_EVENT_BATTERY_REMOVE */
 242         -1,     /* 59 SONYPI_EVENT_FNKEY_RELEASED */
 243         47,     /* 60 SONYPI_EVENT_WIRELESS_ON */
 244         48,     /* 61 SONYPI_EVENT_WIRELESS_OFF */
 245         49,     /* 62 SONYPI_EVENT_ZOOM_IN_PRESSED */
 246         50,     /* 63 SONYPI_EVENT_ZOOM_OUT_PRESSED */
 247         51,     /* 64 SONYPI_EVENT_CD_EJECT_PRESSED */
 248         52,     /* 65 SONYPI_EVENT_MODEKEY_PRESSED */
 249         53,     /* 66 SONYPI_EVENT_PKEY_P4 */
 250         54,     /* 67 SONYPI_EVENT_PKEY_P5 */
 251         55,     /* 68 SONYPI_EVENT_SETTINGKEY_PRESSED */
 252         56,     /* 69 SONYPI_EVENT_VOLUME_INC_PRESSED */
 253         57,     /* 70 SONYPI_EVENT_VOLUME_DEC_PRESSED */
 254         -1,     /* 71 SONYPI_EVENT_BRIGHTNESS_PRESSED */
 255         58,     /* 72 SONYPI_EVENT_MEDIA_PRESSED */
 256         59,     /* 72 SONYPI_EVENT_VENDOR_PRESSED */
 257 };
 258
 259 static int sony_laptop_input_keycode_map[] = {
 260         KEY_CAMERA,     /*  0 SONYPI_EVENT_CAPTURE_PRESSED */
 261         KEY_RESERVED,   /*  1 SONYPI_EVENT_CAPTURE_RELEASED */
 262         KEY_RESERVED,   /*  2 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
 263         KEY_RESERVED,   /*  3 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
 264         KEY_FN_ESC,     /*  4 SONYPI_EVENT_FNKEY_ESC */
 265         KEY_FN_F1,      /*  5 SONYPI_EVENT_FNKEY_F1 */
 266         KEY_FN_F2,      /*  6 SONYPI_EVENT_FNKEY_F2 */
 267         KEY_FN_F3,      /*  7 SONYPI_EVENT_FNKEY_F3 */
 268         KEY_FN_F4,      /*  8 SONYPI_EVENT_FNKEY_F4 */
 269         KEY_FN_F5,      /*  9 SONYPI_EVENT_FNKEY_F5 */
 270         KEY_FN_F6,      /* 10 SONYPI_EVENT_FNKEY_F6 */
 271         KEY_FN_F7,      /* 11 SONYPI_EVENT_FNKEY_F7 */
 272         KEY_FN_F8,      /* 12 SONYPI_EVENT_FNKEY_F8 */
 273         KEY_FN_F9,      /* 13 SONYPI_EVENT_FNKEY_F9 */
 274         KEY_FN_F10,     /* 14 SONYPI_EVENT_FNKEY_F10 */
 275         KEY_FN_F11,     /* 15 SONYPI_EVENT_FNKEY_F11 */
 276         KEY_FN_F12,     /* 16 SONYPI_EVENT_FNKEY_F12 */
 277         KEY_FN_F1,      /* 17 SONYPI_EVENT_FNKEY_1 */
 278         KEY_FN_F2,      /* 18 SONYPI_EVENT_FNKEY_2 */
 279         KEY_FN_D,       /* 19 SONYPI_EVENT_FNKEY_D */
 280         KEY_FN_E,       /* 20 SONYPI_EVENT_FNKEY_E */
 281         KEY_FN_F,       /* 21 SONYPI_EVENT_FNKEY_F */
 282         KEY_FN_S,       /* 22 SONYPI_EVENT_FNKEY_S */
 283         KEY_FN_B,       /* 23 SONYPI_EVENT_FNKEY_B */
 284         KEY_BLUETOOTH,  /* 24 SONYPI_EVENT_BLUETOOTH_PRESSED */
 285         KEY_PROG1,      /* 25 SONYPI_EVENT_PKEY_P1 */
 286         KEY_PROG2,      /* 26 SONYPI_EVENT_PKEY_P2 */
 287         KEY_PROG3,      /* 27 SONYPI_EVENT_PKEY_P3 */
 288         KEY_BACK,       /* 28 SONYPI_EVENT_BACK_PRESSED */
 289         KEY_BLUETOOTH,  /* 29 SONYPI_EVENT_BLUETOOTH_ON */
 290         KEY_BLUETOOTH,  /* 30 SONYPI_EVENT_BLUETOOTH_OFF */
 291         KEY_HELP,       /* 31 SONYPI_EVENT_HELP_PRESSED */
 292         KEY_FN,         /* 32 SONYPI_EVENT_FNKEY_ONLY */
 293         KEY_RESERVED,   /* 33 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
 294         KEY_RESERVED,   /* 34 SONYPI_EVENT_JOGDIAL_FAST_UP */
 295         KEY_RESERVED,   /* 35 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
 296         KEY_RESERVED,   /* 36 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
 297         KEY_RESERVED,   /* 37 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
 298         KEY_RESERVED,   /* 38 SONYPI_EVENT_JOGDIAL_VFAST_UP */
 299         KEY_RESERVED,   /* 39 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
 300         KEY_RESERVED,   /* 40 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
 301         KEY_ZOOM,       /* 41 SONYPI_EVENT_ZOOM_PRESSED */
 302         BTN_THUMB,      /* 42 SONYPI_EVENT_THUMBPHRASE_PRESSED */
 303         KEY_RESERVED,   /* 43 SONYPI_EVENT_MEYE_FACE */
 304         KEY_RESERVED,   /* 44 SONYPI_EVENT_MEYE_OPPOSITE */
 305         KEY_RESERVED,   /* 45 SONYPI_EVENT_MEMORYSTICK_INSERT */
 306         KEY_RESERVED,   /* 46 SONYPI_EVENT_MEMORYSTICK_EJECT */
 307         KEY_WLAN,       /* 47 SONYPI_EVENT_WIRELESS_ON */
 308         KEY_WLAN,       /* 48 SONYPI_EVENT_WIRELESS_OFF */
 309         KEY_ZOOMIN,     /* 49 SONYPI_EVENT_ZOOM_IN_PRESSED */
 310         KEY_ZOOMOUT,    /* 50 SONYPI_EVENT_ZOOM_OUT_PRESSED */
 311         KEY_EJECTCD,    /* 51 SONYPI_EVENT_CD_EJECT_PRESSED */
 312         KEY_F13,        /* 52 SONYPI_EVENT_MODEKEY_PRESSED */
 313         KEY_PROG4,      /* 53 SONYPI_EVENT_PKEY_P4 */
 314         KEY_F14,        /* 54 SONYPI_EVENT_PKEY_P5 */
 315         KEY_F15,        /* 55 SONYPI_EVENT_SETTINGKEY_PRESSED */
 316         KEY_VOLUMEUP,   /* 56 SONYPI_EVENT_VOLUME_INC_PRESSED */
 317         KEY_VOLUMEDOWN, /* 57 SONYPI_EVENT_VOLUME_DEC_PRESSED */
 318         KEY_MEDIA,      /* 58 SONYPI_EVENT_MEDIA_PRESSED */
 319         KEY_VENDOR,     /* 59 SONYPI_EVENT_VENDOR_PRESSED */
 320 };
 321
 322 /* release buttons after a short delay if pressed */
 323 static void do_sony_laptop_release_key(unsigned long unused)
 324 {
 325         struct sony_laptop_keypress kp;
 326         unsigned long flags;
 327
 328         spin_lock_irqsave(&sony_laptop_input.fifo_lock, flags);
 329
 330         if (kfifo_out(&sony_laptop_input.fifo,
 331                       (unsigned char *)&kp, sizeof(kp)) == sizeof(kp)) {
 332                 input_report_key(kp.dev, kp.key, 0);
 333                 input_sync(kp.dev);
 334         }
 335
 336         /* If there is something in the fifo schedule next release. */
 337         if (kfifo_len(&sony_laptop_input.fifo) != 0)
 338                 mod_timer(&sony_laptop_input.release_key_timer,
 339                           jiffies + msecs_to_jiffies(10));
 340
 341         spin_unlock_irqrestore(&sony_laptop_input.fifo_lock, flags);
 342 }
 343
 344 /* forward event to the input subsystem */
 345 static void sony_laptop_report_input_event(u8 event)
 346 {
 347         struct input_dev *jog_dev = sony_laptop_input.jog_dev;
 348         struct input_dev *key_dev = sony_laptop_input.key_dev;
 349         struct sony_laptop_keypress kp = { NULL };
 350
 351         if (event == SONYPI_EVENT_FNKEY_RELEASED ||
 352                         event == SONYPI_EVENT_ANYBUTTON_RELEASED) {
 353                 /* Nothing, not all VAIOs generate this event */
 354                 return;
 355         }
 356
 357         /* report events */
 358         switch (event) {
 359         /* jog_dev events */
 360         case SONYPI_EVENT_JOGDIAL_UP:
 361         case SONYPI_EVENT_JOGDIAL_UP_PRESSED:
 362                 input_report_rel(jog_dev, REL_WHEEL, 1);
 363                 input_sync(jog_dev);
 364                 return;
 365
 366         case SONYPI_EVENT_JOGDIAL_DOWN:
 367         case SONYPI_EVENT_JOGDIAL_DOWN_PRESSED:
 368                 input_report_rel(jog_dev, REL_WHEEL, -1);
 369                 input_sync(jog_dev);
 370                 return;
 371
 372         /* key_dev events */
 373         case SONYPI_EVENT_JOGDIAL_PRESSED:
 374                 kp.key = BTN_MIDDLE;
 375                 kp.dev = jog_dev;
 376                 break;
 377
 378         default:
 379                 if (event >= ARRAY_SIZE(sony_laptop_input_index)) {
 380                         dprintk("sony_laptop_report_input_event, event not known: %d\n", event);
 381                         break;
 382                 }
 383                 if (sony_laptop_input_index[event] != -1) {
 384                         kp.key = sony_laptop_input_keycode_map[sony_laptop_input_index[event]];
 385                         if (kp.key != KEY_UNKNOWN)
 386                                 kp.dev = key_dev;
 387                 }
 388                 break;
 389         }
 390
 391         if (kp.dev) {
 392                 input_report_key(kp.dev, kp.key, 1);
 393                 /* we emit the scancode so we can always remap the key */
 394                 input_event(kp.dev, EV_MSC, MSC_SCAN, event);
 395                 input_sync(kp.dev);
 396
 397                 /* schedule key release */
 398                 kfifo_in_locked(&sony_laptop_input.fifo,
 399                                 (unsigned char *)&kp, sizeof(kp),
 400                                 &sony_laptop_input.fifo_lock);
 401                 mod_timer(&sony_laptop_input.release_key_timer,
 402                           jiffies + msecs_to_jiffies(10));
 403         } else
 404                 dprintk("unknown input event %.2x\n", event);
 405 }
 406
 407 static int sony_laptop_setup_input(struct acpi_device *acpi_device)
 408 {
 409         struct input_dev *jog_dev;
 410         struct input_dev *key_dev;
 411         int i;
 412         int error;
 413
 414         /* don't run again if already initialized */
 415         if (atomic_add_return(1, &sony_laptop_input.users) > 1)
 416                 return 0;
 417
 418         /* kfifo */
 419         spin_lock_init(&sony_laptop_input.fifo_lock);
 420         error = kfifo_alloc(&sony_laptop_input.fifo,
 421                             SONY_LAPTOP_BUF_SIZE, GFP_KERNEL);
 422         if (error) {
 423                 pr_err("kfifo_alloc failed\n");
 424                 goto err_dec_users;
 425         }
 426
 427         setup_timer(&sony_laptop_input.release_key_timer,
 428                     do_sony_laptop_release_key, 0);
 429
 430         /* input keys */
 431         key_dev = input_allocate_device();
 432         if (!key_dev) {
 433                 error = -ENOMEM;
 434                 goto err_free_kfifo;
 435         }
 436
 437         key_dev->name = "Sony Vaio Keys";
 438         key_dev->id.bustype = BUS_ISA;
 439         key_dev->id.vendor = PCI_VENDOR_ID_SONY;
 440         key_dev->dev.parent = &acpi_device->dev;
 441
 442         /* Initialize the Input Drivers: special keys */
 443         input_set_capability(key_dev, EV_MSC, MSC_SCAN);
 444
 445         __set_bit(EV_KEY, key_dev->evbit);
 446         key_dev->keycodesize = sizeof(sony_laptop_input_keycode_map[0]);
 447         key_dev->keycodemax = ARRAY_SIZE(sony_laptop_input_keycode_map);
 448         key_dev->keycode = &sony_laptop_input_keycode_map;
 449         for (i = 0; i < ARRAY_SIZE(sony_laptop_input_keycode_map); i++)
 450                 __set_bit(sony_laptop_input_keycode_map[i], key_dev->keybit);
 451         __clear_bit(KEY_RESERVED, key_dev->keybit);
 452
 453         error = input_register_device(key_dev);
 454         if (error)
 455                 goto err_free_keydev;
 456
 457         sony_laptop_input.key_dev = key_dev;
 458
 459         /* jogdial */
 460         jog_dev = input_allocate_device();
 461         if (!jog_dev) {
 462                 error = -ENOMEM;
 463                 goto err_unregister_keydev;
 464         }
 465
 466         jog_dev->name = "Sony Vaio Jogdial";
 467         jog_dev->id.bustype = BUS_ISA;
 468         jog_dev->id.vendor = PCI_VENDOR_ID_SONY;
 469         key_dev->dev.parent = &acpi_device->dev;
 470
 471         input_set_capability(jog_dev, EV_KEY, BTN_MIDDLE);
 472         input_set_capability(jog_dev, EV_REL, REL_WHEEL);
 473
 474         error = input_register_device(jog_dev);
 475         if (error)
 476                 goto err_free_jogdev;
 477
 478         sony_laptop_input.jog_dev = jog_dev;
 479
 480         return 0;
 481
 482 err_free_jogdev:
 483         input_free_device(jog_dev);
 484
 485 err_unregister_keydev:
 486         input_unregister_device(key_dev);
 487         /* to avoid kref underflow below at input_free_device */
 488         key_dev = NULL;
 489
 490 err_free_keydev:
 491         input_free_device(key_dev);
 492
 493 err_free_kfifo:
 494         kfifo_free(&sony_laptop_input.fifo);
 495
 496 err_dec_users:
 497         atomic_dec(&sony_laptop_input.users);
 498         return error;
 499 }
 500
 501 static void sony_laptop_remove_input(void)
 502 {
 503         struct sony_laptop_keypress kp = { NULL };
 504
 505         /* Cleanup only after the last user has gone */
 506         if (!atomic_dec_and_test(&sony_laptop_input.users))
 507                 return;
 508
 509         del_timer_sync(&sony_laptop_input.release_key_timer);
 510
 511         /*
 512          * Generate key-up events for remaining keys. Note that we don't
 513          * need locking since nobody is adding new events to the kfifo.
 514          */
 515         while (kfifo_out(&sony_laptop_input.fifo,
 516                          (unsigned char *)&kp, sizeof(kp)) == sizeof(kp)) {
 517                 input_report_key(kp.dev, kp.key, 0);
 518                 input_sync(kp.dev);
 519         }
 520
 521         /* destroy input devs */
 522         input_unregister_device(sony_laptop_input.key_dev);
 523         sony_laptop_input.key_dev = NULL;
 524
 525         if (sony_laptop_input.jog_dev) {
 526                 input_unregister_device(sony_laptop_input.jog_dev);
 527                 sony_laptop_input.jog_dev = NULL;
 528         }
 529
 530         kfifo_free(&sony_laptop_input.fifo);
 531 }
 532
 533 /*********** Platform Device ***********/
 534
 535 static atomic_t sony_pf_users = ATOMIC_INIT(0);
 536 static struct platform_driver sony_pf_driver = {
 537         .driver = {
 538                    .name = "sony-laptop",
 539                    .owner = THIS_MODULE,
 540                    }
 541 };
 542 static struct platform_device *sony_pf_device;
 543
 544 static int sony_pf_add(void)
 545 {
 546         int ret = 0;
 547
 548         /* don't run again if already initialized */
 549         if (atomic_add_return(1, &sony_pf_users) > 1)
 550                 return 0;
 551
 552         ret = platform_driver_register(&sony_pf_driver);
 553         if (ret)
 554                 goto out;
 555
 556         sony_pf_device = platform_device_alloc("sony-laptop", -1);
 557         if (!sony_pf_device) {
 558                 ret = -ENOMEM;
 559                 goto out_platform_registered;
 560         }
 561
 562         ret = platform_device_add(sony_pf_device);
 563         if (ret)
 564                 goto out_platform_alloced;
 565
 566         return 0;
 567
 568       out_platform_alloced:
 569         platform_device_put(sony_pf_device);
 570         sony_pf_device = NULL;
 571       out_platform_registered:
 572         platform_driver_unregister(&sony_pf_driver);
 573       out:
 574         atomic_dec(&sony_pf_users);
 575         return ret;
 576 }
 577
 578 static void sony_pf_remove(void)
 579 {
 580         /* deregister only after the last user has gone */
 581         if (!atomic_dec_and_test(&sony_pf_users))
 582                 return;
 583
 584         platform_device_unregister(sony_pf_device);
 585         platform_driver_unregister(&sony_pf_driver);
 586 }
 587
 588 /*********** SNC (SNY5001) Device ***********/
 589
 590 /* the device uses 1-based values, while the backlight subsystem uses
 591    0-based values */
 592 #define SONY_MAX_BRIGHTNESS     8
 593
 594 #define SNC_VALIDATE_IN         0
 595 #define SNC_VALIDATE_OUT        1
 596
 597 static ssize_t sony_nc_sysfs_show(struct device *, struct device_attribute *,
 598                               char *);
 599 static ssize_t sony_nc_sysfs_store(struct device *, struct device_attribute *,
 600                                const char *, size_t);
 601 static int boolean_validate(const int, const int);
 602 static int brightness_default_validate(const int, const int);
 603
 604 struct sony_nc_value {
 605         char *name;             /* name of the entry */
 606         char **acpiget;         /* names of the ACPI get function */
 607         char **acpiset;         /* names of the ACPI set function */
 608         int (*validate)(const int, const int);  /* input/output validation */
 609         int value;              /* current setting */
 610         int valid;              /* Has ever been set */
 611         int debug;              /* active only in debug mode ? */
 612         struct device_attribute devattr;        /* sysfs attribute */
 613 };
 614
 615 #define SNC_HANDLE_NAMES(_name, _values...) \
 616         static char *snc_##_name[] = { _values, NULL }
 617
 618 #define SNC_HANDLE(_name, _getters, _setters, _validate, _debug) \
 619         { \
 620                 .name           = __stringify(_name), \
 621                 .acpiget        = _getters, \
 622                 .acpiset        = _setters, \
 623                 .validate       = _validate, \
 624                 .debug          = _debug, \
 625                 .devattr        = __ATTR(_name, 0, sony_nc_sysfs_show, sony_nc_sysfs_store), \
 626         }
 627
 628 #define SNC_HANDLE_NULL { .name = NULL }
 629
 630 SNC_HANDLE_NAMES(fnkey_get, "GHKE");
 631
 632 SNC_HANDLE_NAMES(brightness_def_get, "GPBR");
 633 SNC_HANDLE_NAMES(brightness_def_set, "SPBR");
 634
 635 SNC_HANDLE_NAMES(cdpower_get, "GCDP");
 636 SNC_HANDLE_NAMES(cdpower_set, "SCDP", "CDPW");
 637
 638 SNC_HANDLE_NAMES(audiopower_get, "GAZP");
 639 SNC_HANDLE_NAMES(audiopower_set, "AZPW");
 640
 641 SNC_HANDLE_NAMES(lanpower_get, "GLNP");
 642 SNC_HANDLE_NAMES(lanpower_set, "LNPW");
 643
 644 SNC_HANDLE_NAMES(lidstate_get, "GLID");
 645
 646 SNC_HANDLE_NAMES(indicatorlamp_get, "GILS");
 647 SNC_HANDLE_NAMES(indicatorlamp_set, "SILS");
 648
 649 SNC_HANDLE_NAMES(gainbass_get, "GMGB");
 650 SNC_HANDLE_NAMES(gainbass_set, "CMGB");
 651
 652 SNC_HANDLE_NAMES(PID_get, "GPID");
 653
 654 SNC_HANDLE_NAMES(CTR_get, "GCTR");
 655 SNC_HANDLE_NAMES(CTR_set, "SCTR");
 656
 657 SNC_HANDLE_NAMES(PCR_get, "GPCR");
 658 SNC_HANDLE_NAMES(PCR_set, "SPCR");
 659
 660 SNC_HANDLE_NAMES(CMI_get, "GCMI");
 661 SNC_HANDLE_NAMES(CMI_set, "SCMI");
 662
 663 static struct sony_nc_value sony_nc_values[] = {
 664         SNC_HANDLE(brightness_default, snc_brightness_def_get,
 665                         snc_brightness_def_set, brightness_default_validate, 0),
 666         SNC_HANDLE(fnkey, snc_fnkey_get, NULL, NULL, 0),
 667         SNC_HANDLE(cdpower, snc_cdpower_get, snc_cdpower_set, boolean_validate, 0),
 668         SNC_HANDLE(audiopower, snc_audiopower_get, snc_audiopower_set,
 669                         boolean_validate, 0),
 670         SNC_HANDLE(lanpower, snc_lanpower_get, snc_lanpower_set,
 671                         boolean_validate, 1),
 672         SNC_HANDLE(lidstate, snc_lidstate_get, NULL,
 673                         boolean_validate, 0),
 674         SNC_HANDLE(indicatorlamp, snc_indicatorlamp_get, snc_indicatorlamp_set,
 675                         boolean_validate, 0),
 676         SNC_HANDLE(gainbass, snc_gainbass_get, snc_gainbass_set,
 677                         boolean_validate, 0),
 678         /* unknown methods */
 679         SNC_HANDLE(PID, snc_PID_get, NULL, NULL, 1),
 680         SNC_HANDLE(CTR, snc_CTR_get, snc_CTR_set, NULL, 1),
 681         SNC_HANDLE(PCR, snc_PCR_get, snc_PCR_set, NULL, 1),
 682         SNC_HANDLE(CMI, snc_CMI_get, snc_CMI_set, NULL, 1),
 683         SNC_HANDLE_NULL
 684 };
 685
 686 static acpi_handle sony_nc_acpi_handle;
 687 static struct acpi_device *sony_nc_acpi_device = NULL;
 688
 689 /*
 690  * acpi_evaluate_object wrappers
 691  */
 692 static int acpi_callgetfunc(acpi_handle handle, char *name, int *result)
 693 {
 694         struct acpi_buffer output;
 695         union acpi_object out_obj;
 696         acpi_status status;
 697
 698         output.length = sizeof(out_obj);
 699         output.pointer = &out_obj;
 700
 701         status = acpi_evaluate_object(handle, name, NULL, &output);
 702         if ((status == AE_OK) && (out_obj.type == ACPI_TYPE_INTEGER)) {
 703                 *result = out_obj.integer.value;
 704                 return 0;
 705         }
 706
 707         pr_warn("acpi_callreadfunc failed\n");
 708
 709         return -1;
 710 }
 711
 712 static int acpi_callsetfunc(acpi_handle handle, char *name, int value,
 713                             int *result)
 714 {
 715         struct acpi_object_list params;
 716         union acpi_object in_obj;
 717         struct acpi_buffer output;
 718         union acpi_object out_obj;
 719         acpi_status status;
 720
 721         params.count = 1;
 722         params.pointer = &in_obj;
 723         in_obj.type = ACPI_TYPE_INTEGER;
 724         in_obj.integer.value = value;
 725
 726         output.length = sizeof(out_obj);
 727         output.pointer = &out_obj;
 728
 729         status = acpi_evaluate_object(handle, name, &params, &output);
 730         if (status == AE_OK) {
 731                 if (result != NULL) {
 732                         if (out_obj.type != ACPI_TYPE_INTEGER) {
 733                                 pr_warn("acpi_evaluate_object bad return type\n");
 734                                 return -1;
 735                         }
 736                         *result = out_obj.integer.value;
 737                 }
 738                 return 0;
 739         }
 740
 741         pr_warn("acpi_evaluate_object failed\n");
 742
 743         return -1;
 744 }
 745
 746 struct sony_nc_handles {
 747         u16 cap[0x10];
 748         struct device_attribute devattr;
 749 };
 750
 751 static struct sony_nc_handles *handles;
 752
 753 static ssize_t sony_nc_handles_show(struct device *dev,
 754                 struct device_attribute *attr, char *buffer)
 755 {
 756         ssize_t len = 0;
 757         int i;
 758
 759         for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
 760                 len += snprintf(buffer + len, PAGE_SIZE - len, "0x%.4x ",
 761                                 handles->cap[i]);
 762         }
 763         len += snprintf(buffer + len, PAGE_SIZE - len, "\n");
 764
 765         return len;
 766 }
 767
 768 static int sony_nc_handles_setup(struct platform_device *pd)
 769 {
 770         int i;
 771         int result;
 772
 773         handles = kzalloc(sizeof(*handles), GFP_KERNEL);
 774         if (!handles)
 775                 return -ENOMEM;
 776
 777         for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
 778                 if (!acpi_callsetfunc(sony_nc_acpi_handle,
 779                                         "SN00", i + 0x20, &result)) {
 780                         dprintk("caching handle 0x%.4x (offset: 0x%.2x)\n",
 781                                         result, i);
 782                         handles->cap[i] = result;
 783                 }
 784         }
 785
 786         if (debug) {
 787                 sysfs_attr_init(&handles->devattr.attr);
 788                 handles->devattr.attr.name = "handles";
 789                 handles->devattr.attr.mode = S_IRUGO;
 790                 handles->devattr.show = sony_nc_handles_show;
 791
 792                 /* allow reading capabilities via sysfs */
 793                 if (device_create_file(&pd->dev, &handles->devattr)) {
 794                         kfree(handles);
 795                         handles = NULL;
 796                         return -1;
 797                 }
 798         }
 799
 800         return 0;
 801 }
 802
 803 static int sony_nc_handles_cleanup(struct platform_device *pd)
 804 {
 805         if (handles) {
 806                 if (debug)
 807                         device_remove_file(&pd->dev, &handles->devattr);
 808                 kfree(handles);
 809                 handles = NULL;
 810         }
 811         return 0;
 812 }
 813
 814 static int sony_find_snc_handle(int handle)
 815 {
 816         int i;
 817
 818         /* not initialized yet, return early */
 819         if (!handles)
 820                 return -1;
 821
 822         for (i = 0; i < 0x10; i++) {
 823                 if (handles->cap[i] == handle) {
 824                         dprintk("found handle 0x%.4x (offset: 0x%.2x)\n",
 825                                         handle, i);
 826                         return i;
 827                 }
 828         }
 829         dprintk("handle 0x%.4x not found\n", handle);
 830         return -1;
 831 }
 832
 833 static int sony_call_snc_handle(int handle, int argument, int *result)
 834 {
 835         int ret = 0;
 836         int offset = sony_find_snc_handle(handle);
 837
 838         if (offset < 0)
 839                 return -1;
 840
 841         ret = acpi_callsetfunc(sony_nc_acpi_handle, "SN07", offset | argument,
 842                         result);
 843         dprintk("called SN07 with 0x%.4x (result: 0x%.4x)\n", offset | argument,
 844                         *result);
 845         return ret;
 846 }
 847
 848 /*
 849  * sony_nc_values input/output validate functions
 850  */
 851
 852 /* brightness_default_validate:
 853  *
 854  * manipulate input output values to keep consistency with the
 855  * backlight framework for which brightness values are 0-based.
 856  */
 857 static int brightness_default_validate(const int direction, const int value)
 858 {
 859         switch (direction) {
 860                 case SNC_VALIDATE_OUT:
 861                         return value - 1;
 862                 case SNC_VALIDATE_IN:
 863                         if (value >= 0 && value < SONY_MAX_BRIGHTNESS)
 864                                 return value + 1;
 865         }
 866         return -EINVAL;
 867 }
 868
 869 /* boolean_validate:
 870  *
 871  * on input validate boolean values 0/1, on output just pass the
 872  * received value.
 873  */
 874 static int boolean_validate(const int direction, const int value)
 875 {
 876         if (direction == SNC_VALIDATE_IN) {
 877                 if (value != 0 && value != 1)
 878                         return -EINVAL;
 879         }
 880         return value;
 881 }
 882
 883 /*
 884  * Sysfs show/store common to all sony_nc_values
 885  */
 886 static ssize_t sony_nc_sysfs_show(struct device *dev, struct device_attribute *attr,
 887                               char *buffer)
 888 {
 889         int value;
 890         struct sony_nc_value *item =
 891             container_of(attr, struct sony_nc_value, devattr);
 892
 893         if (!*item->acpiget)
 894                 return -EIO;
 895
 896         if (acpi_callgetfunc(sony_nc_acpi_handle, *item->acpiget, &value) < 0)
 897                 return -EIO;
 898
 899         if (item->validate)
 900                 value = item->validate(SNC_VALIDATE_OUT, value);
 901
 902         return snprintf(buffer, PAGE_SIZE, "%d\n", value);
 903 }
 904
 905 static ssize_t sony_nc_sysfs_store(struct device *dev,
 906                                struct device_attribute *attr,
 907                                const char *buffer, size_t count)
 908 {
 909         int value;
 910         struct sony_nc_value *item =
 911             container_of(attr, struct sony_nc_value, devattr);
 912
 913         if (!item->acpiset)
 914                 return -EIO;
 915
 916         if (count > 31)
 917                 return -EINVAL;
 918
 919         value = simple_strtoul(buffer, NULL, 10);
 920
 921         if (item->validate)
 922                 value = item->validate(SNC_VALIDATE_IN, value);
 923
 924         if (value < 0)
 925                 return value;
 926
 927         if (acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset, value, NULL) < 0)
 928                 return -EIO;
 929         item->value = value;
 930         item->valid = 1;
 931         return count;
 932 }
 933
 934
 935 /*
 936  * Backlight device
 937  */
 938 struct sony_backlight_props {
 939         struct backlight_device *dev;
 940         int                     handle;
 941         u8                      offset;
 942         u8                      maxlvl;
 943 };
 944 struct sony_backlight_props sony_bl_props;
 945
 946 static int sony_backlight_update_status(struct backlight_device *bd)
 947 {
 948         return acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
 949                                 bd->props.brightness + 1, NULL);
 950 }
 951
 952 static int sony_backlight_get_brightness(struct backlight_device *bd)
 953 {
 954         int value;
 955
 956         if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value))
 957                 return 0;
 958         /* brightness levels are 1-based, while backlight ones are 0-based */
 959         return value - 1;
 960 }
 961
 962 static int sony_nc_get_brightness_ng(struct backlight_device *bd)
 963 {
 964         int result;
 965         struct sony_backlight_props *sdev =
 966                 (struct sony_backlight_props *)bl_get_data(bd);
 967
 968         sony_call_snc_handle(sdev->handle, 0x0200, &result);
 969
 970         return (result & 0xff) - sdev->offset;
 971 }
 972
 973 static int sony_nc_update_status_ng(struct backlight_device *bd)
 974 {
 975         int value, result;
 976         struct sony_backlight_props *sdev =
 977                 (struct sony_backlight_props *)bl_get_data(bd);
 978
 979         value = bd->props.brightness + sdev->offset;
 980         if (sony_call_snc_handle(sdev->handle, 0x0100 | (value << 16), &result))
 981                 return -EIO;
 982
 983         return value;
 984 }
 985
 986 static const struct backlight_ops sony_backlight_ops = {
 987         .options = BL_CORE_SUSPENDRESUME,
 988         .update_status = sony_backlight_update_status,
 989         .get_brightness = sony_backlight_get_brightness,
 990 };
 991 static const struct backlight_ops sony_backlight_ng_ops = {
 992         .options = BL_CORE_SUSPENDRESUME,
 993         .update_status = sony_nc_update_status_ng,
 994         .get_brightness = sony_nc_get_brightness_ng,
 995 };
 996
 997 /*
 998  * New SNC-only Vaios event mapping to driver known keys
 999  */
1000 struct sony_nc_event {
1001         u8      data;
1002         u8      event;
1003 };
1004
1005 static struct sony_nc_event sony_100_events[] = {
1006         { 0x90, SONYPI_EVENT_PKEY_P1 },
1007         { 0x10, SONYPI_EVENT_ANYBUTTON_RELEASED },
1008         { 0x91, SONYPI_EVENT_PKEY_P2 },
1009         { 0x11, SONYPI_EVENT_ANYBUTTON_RELEASED },
1010         { 0x81, SONYPI_EVENT_FNKEY_F1 },
1011         { 0x01, SONYPI_EVENT_FNKEY_RELEASED },
1012         { 0x82, SONYPI_EVENT_FNKEY_F2 },
1013         { 0x02, SONYPI_EVENT_FNKEY_RELEASED },
1014         { 0x83, SONYPI_EVENT_FNKEY_F3 },
1015         { 0x03, SONYPI_EVENT_FNKEY_RELEASED },
1016         { 0x84, SONYPI_EVENT_FNKEY_F4 },
1017         { 0x04, SONYPI_EVENT_FNKEY_RELEASED },
1018         { 0x85, SONYPI_EVENT_FNKEY_F5 },
1019         { 0x05, SONYPI_EVENT_FNKEY_RELEASED },
1020         { 0x86, SONYPI_EVENT_FNKEY_F6 },
1021         { 0x06, SONYPI_EVENT_FNKEY_RELEASED },
1022         { 0x87, SONYPI_EVENT_FNKEY_F7 },
1023         { 0x07, SONYPI_EVENT_FNKEY_RELEASED },
1024         { 0x89, SONYPI_EVENT_FNKEY_F9 },
1025         { 0x09, SONYPI_EVENT_FNKEY_RELEASED },
1026         { 0x8A, SONYPI_EVENT_FNKEY_F10 },
1027         { 0x0A, SONYPI_EVENT_FNKEY_RELEASED },
1028         { 0x8C, SONYPI_EVENT_FNKEY_F12 },
1029         { 0x0C, SONYPI_EVENT_FNKEY_RELEASED },
1030         { 0x9d, SONYPI_EVENT_ZOOM_PRESSED },
1031         { 0x1d, SONYPI_EVENT_ANYBUTTON_RELEASED },
1032         { 0x9f, SONYPI_EVENT_CD_EJECT_PRESSED },
1033         { 0x1f, SONYPI_EVENT_ANYBUTTON_RELEASED },
1034         { 0xa1, SONYPI_EVENT_MEDIA_PRESSED },
1035         { 0x21, SONYPI_EVENT_ANYBUTTON_RELEASED },
1036         { 0xa4, SONYPI_EVENT_CD_EJECT_PRESSED },
1037         { 0x24, SONYPI_EVENT_ANYBUTTON_RELEASED },
1038         { 0xa5, SONYPI_EVENT_VENDOR_PRESSED },
1039         { 0x25, SONYPI_EVENT_ANYBUTTON_RELEASED },
1040         { 0xa6, SONYPI_EVENT_HELP_PRESSED },
1041         { 0x26, SONYPI_EVENT_ANYBUTTON_RELEASED },
1042         { 0, 0 },
1043 };
1044
1045 static struct sony_nc_event sony_127_events[] = {
1046         { 0x81, SONYPI_EVENT_MODEKEY_PRESSED },
1047         { 0x01, SONYPI_EVENT_ANYBUTTON_RELEASED },
1048         { 0x82, SONYPI_EVENT_PKEY_P1 },
1049         { 0x02, SONYPI_EVENT_ANYBUTTON_RELEASED },
1050         { 0x83, SONYPI_EVENT_PKEY_P2 },
1051         { 0x03, SONYPI_EVENT_ANYBUTTON_RELEASED },
1052         { 0x84, SONYPI_EVENT_PKEY_P3 },
1053         { 0x04, SONYPI_EVENT_ANYBUTTON_RELEASED },
1054         { 0x85, SONYPI_EVENT_PKEY_P4 },
1055         { 0x05, SONYPI_EVENT_ANYBUTTON_RELEASED },
1056         { 0x86, SONYPI_EVENT_PKEY_P5 },
1057         { 0x06, SONYPI_EVENT_ANYBUTTON_RELEASED },
1058         { 0x87, SONYPI_EVENT_SETTINGKEY_PRESSED },
1059         { 0x07, SONYPI_EVENT_ANYBUTTON_RELEASED },
1060         { 0, 0 },
1061 };
1062
1063 /*
1064  * ACPI callbacks
1065  */
1066 static void sony_nc_notify(struct acpi_device *device, u32 event)
1067 {
1068         u32 ev = event;
1069
1070         if (ev >= 0x90) {
1071                 /* New-style event */
1072                 int result;
1073                 int key_handle = 0;
1074                 ev -= 0x90;
1075
1076                 if (sony_find_snc_handle(0x100) == ev)
1077                         key_handle = 0x100;
1078                 if (sony_find_snc_handle(0x127) == ev)
1079                         key_handle = 0x127;
1080
1081                 if (key_handle) {
1082                         struct sony_nc_event *key_event;
1083
1084                         if (sony_call_snc_handle(key_handle, 0x200, &result)) {
1085                                 dprintk("sony_nc_notify, unable to decode"
1086                                         " event 0x%.2x 0x%.2x\n", key_handle,
1087                                         ev);
1088                                 /* restore the original event */
1089                                 ev = event;
1090                         } else {
1091                                 ev = result & 0xFF;
1092
1093                                 if (key_handle == 0x100)
1094                                         key_event = sony_100_events;
1095                                 else
1096                                         key_event = sony_127_events;
1097
1098                                 for (; key_event->data; key_event++) {
1099                                         if (key_event->data == ev) {
1100                                                 ev = key_event->event;
1101                                                 break;
1102                                         }
1103                                 }
1104
1105                                 if (!key_event->data)
1106                                         pr_info("Unknown event: 0x%x 0x%x\n",
1107                                                 key_handle, ev);
1108                                 else
1109                                         sony_laptop_report_input_event(ev);
1110                         }
1111                 } else if (sony_find_snc_handle(sony_rfkill_handle) == ev) {
1112                         sony_nc_rfkill_update();
1113                         return;
1114                 }
1115         } else
1116                 sony_laptop_report_input_event(ev);
1117
1118         dprintk("sony_nc_notify, event: 0x%.2x\n", ev);
1119         acpi_bus_generate_proc_event(sony_nc_acpi_device, 1, ev);
1120 }
1121
1122 static acpi_status sony_walk_callback(acpi_handle handle, u32 level,
1123                                       void *context, void **return_value)
1124 {
1125         struct acpi_device_info *info;
1126
1127         if (ACPI_SUCCESS(acpi_get_object_info(handle, &info))) {
1128                 pr_warn("method: name: %4.4s, args %X\n",
1129                         (char *)&info->name, info->param_count);
1130
1131                 kfree(info);
1132         }
1133
1134         return AE_OK;
1135 }
1136
1137 /*
1138  * ACPI device
1139  */
1140 static int sony_nc_function_setup(struct acpi_device *device)
1141 {
1142         int result;
1143
1144         /* Enable all events */
1145         acpi_callsetfunc(sony_nc_acpi_handle, "SN02", 0xffff, &result);
1146
1147         /* Setup hotkeys */
1148         sony_call_snc_handle(0x0100, 0, &result);
1149         sony_call_snc_handle(0x0101, 0, &result);
1150         sony_call_snc_handle(0x0102, 0x100, &result);
1151         sony_call_snc_handle(0x0127, 0, &result);
1152
1153         return 0;
1154 }
1155
1156 static int sony_nc_resume(struct acpi_device *device)
1157 {
1158         struct sony_nc_value *item;
1159         acpi_handle handle;
1160
1161         for (item = sony_nc_values; item->name; item++) {
1162                 int ret;
1163
1164                 if (!item->valid)
1165                         continue;
1166                 ret = acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset,
1167                                        item->value, NULL);
1168                 if (ret < 0) {
1169                         pr_err("%s: %d\n", __func__, ret);
1170                         break;
1171                 }
1172         }
1173
1174         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "ECON",
1175                                          &handle))) {
1176                 if (acpi_callsetfunc(sony_nc_acpi_handle, "ECON", 1, NULL))
1177                         dprintk("ECON Method failed\n");
1178         }
1179
1180         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "SN00",
1181                                          &handle))) {
1182                 dprintk("Doing SNC setup\n");
1183                 sony_nc_function_setup(device);
1184         }
1185
1186         /* re-read rfkill state */
1187         sony_nc_rfkill_update();
1188
1189         /* restore kbd backlight states */
1190         sony_nc_kbd_backlight_resume();
1191
1192         return 0;
1193 }
1194
1195 static void sony_nc_rfkill_cleanup(void)
1196 {
1197         int i;
1198
1199         for (i = 0; i < N_SONY_RFKILL; i++) {
1200                 if (sony_rfkill_devices[i]) {
1201                         rfkill_unregister(sony_rfkill_devices[i]);
1202                         rfkill_destroy(sony_rfkill_devices[i]);
1203                 }
1204         }
1205 }
1206
1207 static int sony_nc_rfkill_set(void *data, bool blocked)
1208 {
1209         int result;
1210         int argument = sony_rfkill_address[(long) data] + 0x100;
1211
1212         if (!blocked)
1213                 argument |= 0xff0000;
1214
1215         return sony_call_snc_handle(sony_rfkill_handle, argument, &result);
1216 }
1217
1218 static const struct rfkill_ops sony_rfkill_ops = {
1219         .set_block = sony_nc_rfkill_set,
1220 };
1221
1222 static int sony_nc_setup_rfkill(struct acpi_device *device,
1223                                 enum sony_nc_rfkill nc_type)
1224 {
1225         int err = 0;
1226         struct rfkill *rfk;
1227         enum rfkill_type type;
1228         const char *name;
1229         int result;
1230         bool hwblock;
1231
1232         switch (nc_type) {
1233         case SONY_WIFI:
1234                 type = RFKILL_TYPE_WLAN;
1235                 name = "sony-wifi";
1236                 break;
1237         case SONY_BLUETOOTH:
1238                 type = RFKILL_TYPE_BLUETOOTH;
1239                 name = "sony-bluetooth";
1240                 break;
1241         case SONY_WWAN:
1242                 type = RFKILL_TYPE_WWAN;
1243                 name = "sony-wwan";
1244                 break;
1245         case SONY_WIMAX:
1246                 type = RFKILL_TYPE_WIMAX;
1247                 name = "sony-wimax";
1248                 break;
1249         default:
1250                 return -EINVAL;
1251         }
1252
1253         rfk = rfkill_alloc(name, &device->dev, type,
1254                            &sony_rfkill_ops, (void *)nc_type);
1255         if (!rfk)
1256                 return -ENOMEM;
1257
1258         sony_call_snc_handle(sony_rfkill_handle, 0x200, &result);
1259         hwblock = !(result & 0x1);
1260         rfkill_set_hw_state(rfk, hwblock);
1261
1262         err = rfkill_register(rfk);
1263         if (err) {
1264                 rfkill_destroy(rfk);
1265                 return err;
1266         }
1267         sony_rfkill_devices[nc_type] = rfk;
1268         return err;
1269 }
1270
1271 static void sony_nc_rfkill_update(void)
1272 {
1273         enum sony_nc_rfkill i;
1274         int result;
1275         bool hwblock;
1276
1277         sony_call_snc_handle(sony_rfkill_handle, 0x200, &result);
1278         hwblock = !(result & 0x1);
1279
1280         for (i = 0; i < N_SONY_RFKILL; i++) {
1281                 int argument = sony_rfkill_address[i];
1282
1283                 if (!sony_rfkill_devices[i])
1284                         continue;
1285
1286                 if (hwblock) {
1287                         if (rfkill_set_hw_state(sony_rfkill_devices[i], true)) {
1288                                 /* we already know we're blocked */
1289                         }
1290                         continue;
1291                 }
1292
1293                 sony_call_snc_handle(sony_rfkill_handle, argument, &result);
1294                 rfkill_set_states(sony_rfkill_devices[i],
1295                                   !(result & 0xf), false);
1296         }
1297 }
1298
1299 static void sony_nc_rfkill_setup(struct acpi_device *device)
1300 {
1301         int offset;
1302         u8 dev_code, i;
1303         acpi_status status;
1304         struct acpi_object_list params;
1305         union acpi_object in_obj;
1306         union acpi_object *device_enum;
1307         struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
1308
1309         offset = sony_find_snc_handle(0x124);
1310         if (offset == -1) {
1311                 offset = sony_find_snc_handle(0x135);
1312                 if (offset == -1)
1313                         return;
1314                 else
1315                         sony_rfkill_handle = 0x135;
1316         } else
1317                 sony_rfkill_handle = 0x124;
1318         dprintk("Found rkfill handle: 0x%.4x\n", sony_rfkill_handle);
1319
1320         /* need to read the whole buffer returned by the acpi call to SN06
1321          * here otherwise we may miss some features
1322          */
1323         params.count = 1;
1324         params.pointer = &in_obj;
1325         in_obj.type = ACPI_TYPE_INTEGER;
1326         in_obj.integer.value = offset;
1327         status = acpi_evaluate_object(sony_nc_acpi_handle, "SN06", &params,
1328                         &buffer);
1329         if (ACPI_FAILURE(status)) {
1330                 dprintk("Radio device enumeration failed\n");
1331                 return;
1332         }
1333
1334         device_enum = (union acpi_object *) buffer.pointer;
1335         if (!device_enum) {
1336                 pr_err("No SN06 return object\n");
1337                 goto out_no_enum;
1338         }
1339         if (device_enum->type != ACPI_TYPE_BUFFER) {
1340                 pr_err("Invalid SN06 return object 0x%.2x\n",
1341                        device_enum->type);
1342                 goto out_no_enum;
1343         }
1344
1345         /* the buffer is filled with magic numbers describing the devices
1346          * available, 0xff terminates the enumeration
1347          */
1348         for (i = 0; i < device_enum->buffer.length; i++) {
1349
1350                 dev_code = *(device_enum->buffer.pointer + i);
1351                 if (dev_code == 0xff)
1352                         break;
1353
1354                 dprintk("Radio devices, looking at 0x%.2x\n", dev_code);
1355
1356                 if (dev_code == 0 && !sony_rfkill_devices[SONY_WIFI])
1357                         sony_nc_setup_rfkill(device, SONY_WIFI);
1358
1359                 if (dev_code == 0x10 && !sony_rfkill_devices[SONY_BLUETOOTH])
1360                         sony_nc_setup_rfkill(device, SONY_BLUETOOTH);
1361
1362                 if ((0xf0 & dev_code) == 0x20 &&
1363                                 !sony_rfkill_devices[SONY_WWAN])
1364                         sony_nc_setup_rfkill(device, SONY_WWAN);
1365
1366                 if (dev_code == 0x30 && !sony_rfkill_devices[SONY_WIMAX])
1367                         sony_nc_setup_rfkill(device, SONY_WIMAX);
1368         }
1369
1370 out_no_enum:
1371         kfree(buffer.pointer);
1372         return;
1373 }
1374
1375 /* Keyboard backlight feature */
1376 #define KBDBL_HANDLER   0x137
1377 #define KBDBL_PRESENT   0xB00
1378 #define SET_MODE        0xC00
1379 #define SET_STATE       0xD00
1380 #define SET_TIMEOUT     0xE00
1381
1382 struct kbd_backlight {
1383         int mode;
1384         int timeout;
1385         struct device_attribute mode_attr;
1386         struct device_attribute timeout_attr;
1387 };
1388
1389 static struct kbd_backlight *kbdbl_handle;
1390
1391 static ssize_t __sony_nc_kbd_backlight_mode_set(u8 value)
1392 {
1393         int result;
1394
1395         if (value > 1)
1396                 return -EINVAL;
1397
1398         if (sony_call_snc_handle(KBDBL_HANDLER,
1399                                 (value << 0x10) | SET_MODE, &result))
1400                 return -EIO;
1401
1402         /* Try to turn the light on/off immediately */
1403         sony_call_snc_handle(KBDBL_HANDLER, (value << 0x10) | SET_STATE,
1404                         &result);
1405
1406         kbdbl_handle->mode = value;
1407
1408         return 0;
1409 }
1410
1411 static ssize_t sony_nc_kbd_backlight_mode_store(struct device *dev,
1412                 struct device_attribute *attr,
1413                 const char *buffer, size_t count)
1414 {
1415         int ret = 0;
1416         unsigned long value;
1417
1418         if (count > 31)
1419                 return -EINVAL;
1420
1421         if (strict_strtoul(buffer, 10, &value))
1422                 return -EINVAL;
1423
1424         ret = __sony_nc_kbd_backlight_mode_set(value);
1425         if (ret < 0)
1426                 return ret;
1427
1428         return count;
1429 }
1430
1431 static ssize_t sony_nc_kbd_backlight_mode_show(struct device *dev,
1432                 struct device_attribute *attr, char *buffer)
1433 {
1434         ssize_t count = 0;
1435         count = snprintf(buffer, PAGE_SIZE, "%d\n", kbdbl_handle->mode);
1436         return count;
1437 }
1438
1439 static int __sony_nc_kbd_backlight_timeout_set(u8 value)
1440 {
1441         int result;
1442
1443         if (value > 3)
1444                 return -EINVAL;
1445
1446         if (sony_call_snc_handle(KBDBL_HANDLER,
1447                                 (value << 0x10) | SET_TIMEOUT, &result))
1448                 return -EIO;
1449
1450         kbdbl_handle->timeout = value;
1451
1452         return 0;
1453 }
1454
1455 static ssize_t sony_nc_kbd_backlight_timeout_store(struct device *dev,
1456                 struct device_attribute *attr,
1457                 const char *buffer, size_t count)
1458 {
1459         int ret = 0;
1460         unsigned long value;
1461
1462         if (count > 31)
1463                 return -EINVAL;
1464
1465         if (strict_strtoul(buffer, 10, &value))
1466                 return -EINVAL;
1467
1468         ret = __sony_nc_kbd_backlight_timeout_set(value);
1469         if (ret < 0)
1470                 return ret;
1471
1472         return count;
1473 }
1474
1475 static ssize_t sony_nc_kbd_backlight_timeout_show(struct device *dev,
1476                 struct device_attribute *attr, char *buffer)
1477 {
1478         ssize_t count = 0;
1479         count = snprintf(buffer, PAGE_SIZE, "%d\n", kbdbl_handle->timeout);
1480         return count;
1481 }
1482
1483 static int sony_nc_kbd_backlight_setup(struct platform_device *pd)
1484 {
1485         int result;
1486
1487         if (sony_call_snc_handle(KBDBL_HANDLER, KBDBL_PRESENT, &result))
1488                 return 0;
1489         if (!(result & 0x02))
1490                 return 0;
1491
1492         kbdbl_handle = kzalloc(sizeof(*kbdbl_handle), GFP_KERNEL);
1493         if (!kbdbl_handle)
1494                 return -ENOMEM;
1495
1496         sysfs_attr_init(&kbdbl_handle->mode_attr.attr);
1497         kbdbl_handle->mode_attr.attr.name = "kbd_backlight";
1498         kbdbl_handle->mode_attr.attr.mode = S_IRUGO | S_IWUSR;
1499         kbdbl_handle->mode_attr.show = sony_nc_kbd_backlight_mode_show;
1500         kbdbl_handle->mode_attr.store = sony_nc_kbd_backlight_mode_store;
1501
1502         sysfs_attr_init(&kbdbl_handle->timeout_attr.attr);
1503         kbdbl_handle->timeout_attr.attr.name = "kbd_backlight_timeout";
1504         kbdbl_handle->timeout_attr.attr.mode = S_IRUGO | S_IWUSR;
1505         kbdbl_handle->timeout_attr.show = sony_nc_kbd_backlight_timeout_show;
1506         kbdbl_handle->timeout_attr.store = sony_nc_kbd_backlight_timeout_store;
1507
1508         if (device_create_file(&pd->dev, &kbdbl_handle->mode_attr))
1509                 goto outkzalloc;
1510
1511         if (device_create_file(&pd->dev, &kbdbl_handle->timeout_attr))
1512                 goto outmode;
1513
1514         __sony_nc_kbd_backlight_mode_set(kbd_backlight);
1515         __sony_nc_kbd_backlight_timeout_set(kbd_backlight_timeout);
1516
1517         return 0;
1518
1519 outmode:
1520         device_remove_file(&pd->dev, &kbdbl_handle->mode_attr);
1521 outkzalloc:
1522         kfree(kbdbl_handle);
1523         kbdbl_handle = NULL;
1524         return -1;
1525 }
1526
1527 static int sony_nc_kbd_backlight_cleanup(struct platform_device *pd)
1528 {
1529         if (kbdbl_handle) {
1530                 int result;
1531
1532                 device_remove_file(&pd->dev, &kbdbl_handle->mode_attr);
1533                 device_remove_file(&pd->dev, &kbdbl_handle->timeout_attr);
1534
1535                 /* restore the default hw behaviour */
1536                 sony_call_snc_handle(KBDBL_HANDLER, 0x1000 | SET_MODE, &result);
1537                 sony_call_snc_handle(KBDBL_HANDLER, SET_TIMEOUT, &result);
1538
1539                 kfree(kbdbl_handle);
1540         }
1541         return 0;
1542 }
1543
1544 static void sony_nc_kbd_backlight_resume(void)
1545 {
1546         int ignore = 0;
1547
1548         if (!kbdbl_handle)
1549                 return;
1550
1551         if (kbdbl_handle->mode == 0)
1552                 sony_call_snc_handle(KBDBL_HANDLER, SET_MODE, &ignore);
1553
1554         if (kbdbl_handle->timeout != 0)
1555                 sony_call_snc_handle(KBDBL_HANDLER,
1556                                 (kbdbl_handle->timeout << 0x10) | SET_TIMEOUT,
1557                                 &ignore);
1558 }
1559
1560 static void sony_nc_backlight_ng_read_limits(int handle,
1561                 struct sony_backlight_props *props)
1562 {
1563         int offset;
1564         acpi_status status;
1565         u8 brlvl, i;
1566         u8 min = 0xff, max = 0x00;
1567         struct acpi_object_list params;
1568         union acpi_object in_obj;
1569         union acpi_object *lvl_enum;
1570         struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
1571
1572         props->handle = handle;
1573         props->offset = 0;
1574         props->maxlvl = 0xff;
1575
1576         offset = sony_find_snc_handle(handle);
1577         if (offset < 0)
1578                 return;
1579
1580         /* try to read the boundaries from ACPI tables, if we fail the above
1581          * defaults should be reasonable
1582          */
1583         params.count = 1;
1584         params.pointer = &in_obj;
1585         in_obj.type = ACPI_TYPE_INTEGER;
1586         in_obj.integer.value = offset;
1587         status = acpi_evaluate_object(sony_nc_acpi_handle, "SN06", &params,
1588                         &buffer);
1589         if (ACPI_FAILURE(status))
1590                 return;
1591
1592         lvl_enum = (union acpi_object *) buffer.pointer;
1593         if (!lvl_enum) {
1594                 pr_err("No SN06 return object.");
1595                 return;
1596         }
1597         if (lvl_enum->type != ACPI_TYPE_BUFFER) {
1598                 pr_err("Invalid SN06 return object 0x%.2x\n",
1599                        lvl_enum->type);
1600                 goto out_invalid;
1601         }
1602
1603         /* the buffer lists brightness levels available, brightness levels are
1604          * from 0 to 8 in the array, other values are used by ALS control.
1605          */
1606         for (i = 0; i < 9 && i < lvl_enum->buffer.length; i++) {
1607
1608                 brlvl = *(lvl_enum->buffer.pointer + i);
1609                 dprintk("Brightness level: %d\n", brlvl);
1610
1611                 if (!brlvl)
1612                         break;
1613
1614                 if (brlvl > max)
1615                         max = brlvl;
1616                 if (brlvl < min)
1617                         min = brlvl;
1618         }
1619         props->offset = min;
1620         props->maxlvl = max;
1621         dprintk("Brightness levels: min=%d max=%d\n", props->offset,
1622                         props->maxlvl);
1623
1624 out_invalid:
1625         kfree(buffer.pointer);
1626         return;
1627 }
1628
1629 static void sony_nc_backlight_setup(void)
1630 {
1631         acpi_handle unused;
1632         int max_brightness = 0;
1633         const struct backlight_ops *ops = NULL;
1634         struct backlight_properties props;
1635
1636         if (sony_find_snc_handle(0x12f) != -1) {
1637                 ops = &sony_backlight_ng_ops;
1638                 sony_nc_backlight_ng_read_limits(0x12f, &sony_bl_props);
1639                 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
1640
1641         } else if (sony_find_snc_handle(0x137) != -1) {
1642                 ops = &sony_backlight_ng_ops;
1643                 sony_nc_backlight_ng_read_limits(0x137, &sony_bl_props);
1644                 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
1645
1646         } else if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT",
1647                                                 &unused))) {
1648                 ops = &sony_backlight_ops;
1649                 max_brightness = SONY_MAX_BRIGHTNESS - 1;
1650
1651         } else
1652                 return;
1653
1654         memset(&props, 0, sizeof(struct backlight_properties));
1655         props.type = BACKLIGHT_PLATFORM;
1656         props.max_brightness = max_brightness;
1657         sony_bl_props.dev = backlight_device_register("sony", NULL,
1658                                                       &sony_bl_props,
1659                                                       ops, &props);
1660
1661         if (IS_ERR(sony_bl_props.dev)) {
1662                 pr_warn("unable to register backlight device\n");
1663                 sony_bl_props.dev = NULL;
1664         } else
1665                 sony_bl_props.dev->props.brightness =
1666                         ops->get_brightness(sony_bl_props.dev);
1667 }
1668
1669 static void sony_nc_backlight_cleanup(void)
1670 {
1671         if (sony_bl_props.dev)
1672                 backlight_device_unregister(sony_bl_props.dev);
1673 }
1674
1675 static int sony_nc_add(struct acpi_device *device)
1676 {
1677         acpi_status status;
1678         int result = 0;
1679         acpi_handle handle;
1680         struct sony_nc_value *item;
1681
1682         pr_info("%s v%s\n", SONY_NC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
1683
1684         sony_nc_acpi_device = device;
1685         strcpy(acpi_device_class(device), "sony/hotkey");
1686
1687         sony_nc_acpi_handle = device->handle;
1688
1689         /* read device status */
1690         result = acpi_bus_get_status(device);
1691         /* bail IFF the above call was successful and the device is not present */
1692         if (!result && !device->status.present) {
1693                 dprintk("Device not present\n");
1694                 result = -ENODEV;
1695                 goto outwalk;
1696         }
1697
1698         result = sony_pf_add();
1699         if (result)
1700                 goto outpresent;
1701
1702         if (debug) {
1703                 status = acpi_walk_namespace(ACPI_TYPE_METHOD,
1704                                 sony_nc_acpi_handle, 1, sony_walk_callback,
1705                                 NULL, NULL, NULL);
1706                 if (ACPI_FAILURE(status)) {
1707                         pr_warn("unable to walk acpi resources\n");
1708                         result = -ENODEV;
1709                         goto outpresent;
1710                 }
1711         }
1712
1713         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "ECON",
1714                                          &handle))) {
1715                 if (acpi_callsetfunc(sony_nc_acpi_handle, "ECON", 1, NULL))
1716                         dprintk("ECON Method failed\n");
1717         }
1718
1719         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "SN00",
1720                                          &handle))) {
1721                 dprintk("Doing SNC setup\n");
1722                 result = sony_nc_handles_setup(sony_pf_device);
1723                 if (result)
1724                         goto outpresent;
1725                 result = sony_nc_kbd_backlight_setup(sony_pf_device);
1726                 if (result)
1727                         goto outsnc;
1728                 sony_nc_function_setup(device);
1729                 sony_nc_rfkill_setup(device);
1730         }
1731
1732         /* setup input devices and helper fifo */
1733         result = sony_laptop_setup_input(device);
1734         if (result) {
1735                 pr_err("Unable to create input devices\n");
1736                 goto outkbdbacklight;
1737         }
1738
1739         if (acpi_video_backlight_support()) {
1740                 pr_info("brightness ignored, must be controlled by ACPI video driver\n");
1741         } else {
1742                 sony_nc_backlight_setup();
1743         }
1744
1745         /* create sony_pf sysfs attributes related to the SNC device */
1746         for (item = sony_nc_values; item->name; ++item) {
1747
1748                 if (!debug && item->debug)
1749                         continue;
1750
1751                 /* find the available acpiget as described in the DSDT */
1752                 for (; item->acpiget && *item->acpiget; ++item->acpiget) {
1753                         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
1754                                                          *item->acpiget,
1755                                                          &handle))) {
1756                                 dprintk("Found %s getter: %s\n",
1757                                                 item->name, *item->acpiget);
1758                                 item->devattr.attr.mode |= S_IRUGO;
1759                                 break;
1760                         }
1761                 }
1762
1763                 /* find the available acpiset as described in the DSDT */
1764                 for (; item->acpiset && *item->acpiset; ++item->acpiset) {
1765                         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
1766                                                          *item->acpiset,
1767                                                          &handle))) {
1768                                 dprintk("Found %s setter: %s\n",
1769                                                 item->name, *item->acpiset);
1770                                 item->devattr.attr.mode |= S_IWUSR;
1771                                 break;
1772                         }
1773                 }
1774
1775                 if (item->devattr.attr.mode != 0) {
1776                         result =
1777                             device_create_file(&sony_pf_device->dev,
1778                                                &item->devattr);
1779                         if (result)
1780                                 goto out_sysfs;
1781                 }
1782         }
1783
1784         return 0;
1785
1786       out_sysfs:
1787         for (item = sony_nc_values; item->name; ++item) {
1788                 device_remove_file(&sony_pf_device->dev, &item->devattr);
1789         }
1790         sony_nc_backlight_cleanup();
1791
1792         sony_laptop_remove_input();
1793
1794       outkbdbacklight:
1795         sony_nc_kbd_backlight_cleanup(sony_pf_device);
1796
1797       outsnc:
1798         sony_nc_handles_cleanup(sony_pf_device);
1799
1800       outpresent:
1801         sony_pf_remove();
1802
1803       outwalk:
1804         sony_nc_rfkill_cleanup();
1805         return result;
1806 }
1807
1808 static int sony_nc_remove(struct acpi_device *device, int type)
1809 {
1810         struct sony_nc_value *item;
1811
1812         sony_nc_backlight_cleanup();
1813
1814         sony_nc_acpi_device = NULL;
1815
1816         for (item = sony_nc_values; item->name; ++item) {
1817                 device_remove_file(&sony_pf_device->dev, &item->devattr);
1818         }
1819
1820         sony_nc_kbd_backlight_cleanup(sony_pf_device);
1821         sony_nc_handles_cleanup(sony_pf_device);
1822         sony_pf_remove();
1823         sony_laptop_remove_input();
1824         sony_nc_rfkill_cleanup();
1825         dprintk(SONY_NC_DRIVER_NAME " removed.\n");
1826
1827         return 0;
1828 }
1829
1830 static const struct acpi_device_id sony_device_ids[] = {
1831         {SONY_NC_HID, 0},
1832         {SONY_PIC_HID, 0},
1833         {"", 0},
1834 };
1835 MODULE_DEVICE_TABLE(acpi, sony_device_ids);
1836
1837 static const struct acpi_device_id sony_nc_device_ids[] = {
1838         {SONY_NC_HID, 0},
1839         {"", 0},
1840 };
1841
1842 static struct acpi_driver sony_nc_driver = {
1843         .name = SONY_NC_DRIVER_NAME,
1844         .class = SONY_NC_CLASS,
1845         .ids = sony_nc_device_ids,
1846         .owner = THIS_MODULE,
1847         .ops = {
1848                 .add = sony_nc_add,
1849                 .remove = sony_nc_remove,
1850                 .resume = sony_nc_resume,
1851                 .notify = sony_nc_notify,
1852                 },
1853 };
1854
1855 /*********** SPIC (SNY6001) Device ***********/
1856
1857 #define SONYPI_DEVICE_TYPE1     0x00000001
1858 #define SONYPI_DEVICE_TYPE2     0x00000002
1859 #define SONYPI_DEVICE_TYPE3     0x00000004
1860
1861 #define SONYPI_TYPE1_OFFSET     0x04
1862 #define SONYPI_TYPE2_OFFSET     0x12
1863 #define SONYPI_TYPE3_OFFSET     0x12
1864
1865 struct sony_pic_ioport {
1866         struct acpi_resource_io io1;
1867         struct acpi_resource_io io2;
1868         struct list_head        list;
1869 };
1870
1871 struct sony_pic_irq {
1872         struct acpi_resource_irq        irq;
1873         struct list_head                list;
1874 };
1875
1876 struct sonypi_eventtypes {
1877         u8                      data;
1878         unsigned long           mask;
1879         struct sonypi_event     *events;
1880 };
1881
1882 struct sony_pic_dev {
1883         struct acpi_device              *acpi_dev;
1884         struct sony_pic_irq             *cur_irq;
1885         struct sony_pic_ioport          *cur_ioport;
1886         struct list_head                interrupts;
1887         struct list_head                ioports;
1888         struct mutex                    lock;
1889         struct sonypi_eventtypes        *event_types;
1890         int                             (*handle_irq)(const u8, const u8);
1891         int                             model;
1892         u16                             evport_offset;
1893         u8                              camera_power;
1894         u8                              bluetooth_power;
1895         u8                              wwan_power;
1896 };
1897
1898 static struct sony_pic_dev spic_dev = {
1899         .interrupts     = LIST_HEAD_INIT(spic_dev.interrupts),
1900         .ioports        = LIST_HEAD_INIT(spic_dev.ioports),
1901 };
1902
1903 static int spic_drv_registered;
1904
1905 /* Event masks */
1906 #define SONYPI_JOGGER_MASK                      0x00000001
1907 #define SONYPI_CAPTURE_MASK                     0x00000002
1908 #define SONYPI_FNKEY_MASK                       0x00000004
1909 #define SONYPI_BLUETOOTH_MASK                   0x00000008
1910 #define SONYPI_PKEY_MASK                        0x00000010
1911 #define SONYPI_BACK_MASK                        0x00000020
1912 #define SONYPI_HELP_MASK                        0x00000040
1913 #define SONYPI_LID_MASK                         0x00000080
1914 #define SONYPI_ZOOM_MASK                        0x00000100
1915 #define SONYPI_THUMBPHRASE_MASK                 0x00000200
1916 #define SONYPI_MEYE_MASK                        0x00000400
1917 #define SONYPI_MEMORYSTICK_MASK                 0x00000800
1918 #define SONYPI_BATTERY_MASK                     0x00001000
1919 #define SONYPI_WIRELESS_MASK                    0x00002000
1920
1921 struct sonypi_event {
1922         u8      data;
1923         u8      event;
1924 };
1925
1926 /* The set of possible button release events */
1927 static struct sonypi_event sonypi_releaseev[] = {
1928         { 0x00, SONYPI_EVENT_ANYBUTTON_RELEASED },
1929         { 0, 0 }
1930 };
1931
1932 /* The set of possible jogger events  */
1933 static struct sonypi_event sonypi_joggerev[] = {
1934         { 0x1f, SONYPI_EVENT_JOGDIAL_UP },
1935         { 0x01, SONYPI_EVENT_JOGDIAL_DOWN },
1936         { 0x5f, SONYPI_EVENT_JOGDIAL_UP_PRESSED },
1937         { 0x41, SONYPI_EVENT_JOGDIAL_DOWN_PRESSED },
1938         { 0x1e, SONYPI_EVENT_JOGDIAL_FAST_UP },
1939         { 0x02, SONYPI_EVENT_JOGDIAL_FAST_DOWN },
1940         { 0x5e, SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED },
1941         { 0x42, SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED },
1942         { 0x1d, SONYPI_EVENT_JOGDIAL_VFAST_UP },
1943         { 0x03, SONYPI_EVENT_JOGDIAL_VFAST_DOWN },
1944         { 0x5d, SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED },
1945         { 0x43, SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED },
1946         { 0x40, SONYPI_EVENT_JOGDIAL_PRESSED },
1947         { 0, 0 }
1948 };
1949
1950 /* The set of possible capture button events */
1951 static struct sonypi_event sonypi_captureev[] = {
1952         { 0x05, SONYPI_EVENT_CAPTURE_PARTIALPRESSED },
1953         { 0x07, SONYPI_EVENT_CAPTURE_PRESSED },
1954         { 0x40, SONYPI_EVENT_CAPTURE_PRESSED },
1955         { 0x01, SONYPI_EVENT_CAPTURE_PARTIALRELEASED },
1956         { 0, 0 }
1957 };
1958
1959 /* The set of possible fnkeys events */
1960 static struct sonypi_event sonypi_fnkeyev[] = {
1961         { 0x10, SONYPI_EVENT_FNKEY_ESC },
1962         { 0x11, SONYPI_EVENT_FNKEY_F1 },
1963         { 0x12, SONYPI_EVENT_FNKEY_F2 },
1964         { 0x13, SONYPI_EVENT_FNKEY_F3 },
1965         { 0x14, SONYPI_EVENT_FNKEY_F4 },
1966         { 0x15, SONYPI_EVENT_FNKEY_F5 },
1967         { 0x16, SONYPI_EVENT_FNKEY_F6 },
1968         { 0x17, SONYPI_EVENT_FNKEY_F7 },
1969         { 0x18, SONYPI_EVENT_FNKEY_F8 },
1970         { 0x19, SONYPI_EVENT_FNKEY_F9 },
1971         { 0x1a, SONYPI_EVENT_FNKEY_F10 },
1972         { 0x1b, SONYPI_EVENT_FNKEY_F11 },
1973         { 0x1c, SONYPI_EVENT_FNKEY_F12 },
1974         { 0x1f, SONYPI_EVENT_FNKEY_RELEASED },
1975         { 0x21, SONYPI_EVENT_FNKEY_1 },
1976         { 0x22, SONYPI_EVENT_FNKEY_2 },
1977         { 0x31, SONYPI_EVENT_FNKEY_D },
1978         { 0x32, SONYPI_EVENT_FNKEY_E },
1979         { 0x33, SONYPI_EVENT_FNKEY_F },
1980         { 0x34, SONYPI_EVENT_FNKEY_S },
1981         { 0x35, SONYPI_EVENT_FNKEY_B },
1982         { 0x36, SONYPI_EVENT_FNKEY_ONLY },
1983         { 0, 0 }
1984 };
1985
1986 /* The set of possible program key events */
1987 static struct sonypi_event sonypi_pkeyev[] = {
1988         { 0x01, SONYPI_EVENT_PKEY_P1 },
1989         { 0x02, SONYPI_EVENT_PKEY_P2 },
1990         { 0x04, SONYPI_EVENT_PKEY_P3 },
1991         { 0x20, SONYPI_EVENT_PKEY_P1 },
1992         { 0, 0 }
1993 };
1994
1995 /* The set of possible bluetooth events */
1996 static struct sonypi_event sonypi_blueev[] = {
1997         { 0x55, SONYPI_EVENT_BLUETOOTH_PRESSED },
1998         { 0x59, SONYPI_EVENT_BLUETOOTH_ON },
1999         { 0x5a, SONYPI_EVENT_BLUETOOTH_OFF },
2000         { 0, 0 }
2001 };
2002
2003 /* The set of possible wireless events */
2004 static struct sonypi_event sonypi_wlessev[] = {
2005         { 0x59, SONYPI_EVENT_IGNORE },
2006         { 0x5a, SONYPI_EVENT_IGNORE },
2007         { 0, 0 }
2008 };
2009
2010 /* The set of possible back button events */
2011 static struct sonypi_event sonypi_backev[] = {
2012         { 0x20, SONYPI_EVENT_BACK_PRESSED },
2013         { 0, 0 }
2014 };
2015
2016 /* The set of possible help button events */
2017 static struct sonypi_event sonypi_helpev[] = {
2018         { 0x3b, SONYPI_EVENT_HELP_PRESSED },
2019         { 0, 0 }
2020 };
2021
2022
2023 /* The set of possible lid events */
2024 static struct sonypi_event sonypi_lidev[] = {
2025         { 0x51, SONYPI_EVENT_LID_CLOSED },
2026         { 0x50, SONYPI_EVENT_LID_OPENED },
2027         { 0, 0 }
2028 };
2029
2030 /* The set of possible zoom events */
2031 static struct sonypi_event sonypi_zoomev[] = {
2032         { 0x39, SONYPI_EVENT_ZOOM_PRESSED },
2033         { 0x10, SONYPI_EVENT_ZOOM_IN_PRESSED },
2034         { 0x20, SONYPI_EVENT_ZOOM_OUT_PRESSED },
2035         { 0x04, SONYPI_EVENT_ZOOM_PRESSED },
2036         { 0, 0 }
2037 };
2038
2039 /* The set of possible thumbphrase events */
2040 static struct sonypi_event sonypi_thumbphraseev[] = {
2041         { 0x3a, SONYPI_EVENT_THUMBPHRASE_PRESSED },
2042         { 0, 0 }
2043 };
2044
2045 /* The set of possible motioneye camera events */
2046 static struct sonypi_event sonypi_meyeev[] = {
2047         { 0x00, SONYPI_EVENT_MEYE_FACE },
2048         { 0x01, SONYPI_EVENT_MEYE_OPPOSITE },
2049         { 0, 0 }
2050 };
2051
2052 /* The set of possible memorystick events */
2053 static struct sonypi_event sonypi_memorystickev[] = {
2054         { 0x53, SONYPI_EVENT_MEMORYSTICK_INSERT },
2055         { 0x54, SONYPI_EVENT_MEMORYSTICK_EJECT },
2056         { 0, 0 }
2057 };
2058
2059 /* The set of possible battery events */
2060 static struct sonypi_event sonypi_batteryev[] = {
2061         { 0x20, SONYPI_EVENT_BATTERY_INSERT },
2062         { 0x30, SONYPI_EVENT_BATTERY_REMOVE },
2063         { 0, 0 }
2064 };
2065
2066 /* The set of possible volume events */
2067 static struct sonypi_event sonypi_volumeev[] = {
2068         { 0x01, SONYPI_EVENT_VOLUME_INC_PRESSED },
2069         { 0x02, SONYPI_EVENT_VOLUME_DEC_PRESSED },
2070         { 0, 0 }
2071 };
2072
2073 /* The set of possible brightness events */
2074 static struct sonypi_event sonypi_brightnessev[] = {
2075         { 0x80, SONYPI_EVENT_BRIGHTNESS_PRESSED },
2076         { 0, 0 }
2077 };
2078
2079 static struct sonypi_eventtypes type1_events[] = {
2080         { 0, 0xffffffff, sonypi_releaseev },
2081         { 0x70, SONYPI_MEYE_MASK, sonypi_meyeev },
2082         { 0x30, SONYPI_LID_MASK, sonypi_lidev },
2083         { 0x60, SONYPI_CAPTURE_MASK, sonypi_captureev },
2084         { 0x10, SONYPI_JOGGER_MASK, sonypi_joggerev },
2085         { 0x20, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
2086         { 0x30, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
2087         { 0x40, SONYPI_PKEY_MASK, sonypi_pkeyev },
2088         { 0x30, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
2089         { 0x40, SONYPI_BATTERY_MASK, sonypi_batteryev },
2090         { 0 },
2091 };
2092 static struct sonypi_eventtypes type2_events[] = {
2093         { 0, 0xffffffff, sonypi_releaseev },
2094         { 0x38, SONYPI_LID_MASK, sonypi_lidev },
2095         { 0x11, SONYPI_JOGGER_MASK, sonypi_joggerev },
2096         { 0x61, SONYPI_CAPTURE_MASK, sonypi_captureev },
2097         { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
2098         { 0x31, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
2099         { 0x08, SONYPI_PKEY_MASK, sonypi_pkeyev },
2100         { 0x11, SONYPI_BACK_MASK, sonypi_backev },
2101         { 0x21, SONYPI_HELP_MASK, sonypi_helpev },
2102         { 0x21, SONYPI_ZOOM_MASK, sonypi_zoomev },
2103         { 0x20, SONYPI_THUMBPHRASE_MASK, sonypi_thumbphraseev },
2104         { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
2105         { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
2106         { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
2107         { 0 },
2108 };
2109 static struct sonypi_eventtypes type3_events[] = {
2110         { 0, 0xffffffff, sonypi_releaseev },
2111         { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
2112         { 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
2113         { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
2114         { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
2115         { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
2116         { 0x05, SONYPI_PKEY_MASK, sonypi_pkeyev },
2117         { 0x05, SONYPI_ZOOM_MASK, sonypi_zoomev },
2118         { 0x05, SONYPI_CAPTURE_MASK, sonypi_captureev },
2119         { 0x05, SONYPI_PKEY_MASK, sonypi_volumeev },
2120         { 0x05, SONYPI_PKEY_MASK, sonypi_brightnessev },
2121         { 0 },
2122 };
2123
2124 /* low level spic calls */
2125 #define ITERATIONS_LONG         10000
2126 #define ITERATIONS_SHORT        10
2127 #define wait_on_command(command, iterations) {                          \
2128         unsigned int n = iterations;                                    \
2129         while (--n && (command))                                        \
2130                 udelay(1);                                              \
2131         if (!n)                                                         \
2132                 dprintk("command failed at %s : %s (line %d)\n",        \
2133                                 __FILE__, __func__, __LINE__);  \
2134 }
2135
2136 static u8 sony_pic_call1(u8 dev)
2137 {
2138         u8 v1, v2;
2139
2140         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
2141                         ITERATIONS_LONG);
2142         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
2143         v1 = inb_p(spic_dev.cur_ioport->io1.minimum + 4);
2144         v2 = inb_p(spic_dev.cur_ioport->io1.minimum);
2145         dprintk("sony_pic_call1(0x%.2x): 0x%.4x\n", dev, (v2 << 8) | v1);
2146         return v2;
2147 }
2148
2149 static u8 sony_pic_call2(u8 dev, u8 fn)
2150 {
2151         u8 v1;
2152
2153         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
2154                         ITERATIONS_LONG);
2155         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
2156         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
2157                         ITERATIONS_LONG);
2158         outb(fn, spic_dev.cur_ioport->io1.minimum);
2159         v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
2160         dprintk("sony_pic_call2(0x%.2x - 0x%.2x): 0x%.4x\n", dev, fn, v1);
2161         return v1;
2162 }
2163
2164 static u8 sony_pic_call3(u8 dev, u8 fn, u8 v)
2165 {
2166         u8 v1;
2167
2168         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
2169         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
2170         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
2171         outb(fn, spic_dev.cur_ioport->io1.minimum);
2172         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
2173         outb(v, spic_dev.cur_ioport->io1.minimum);
2174         v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
2175         dprintk("sony_pic_call3(0x%.2x - 0x%.2x - 0x%.2x): 0x%.4x\n",
2176                         dev, fn, v, v1);
2177         return v1;
2178 }
2179
2180 /*
2181  * minidrivers for SPIC models
2182  */
2183 static int type3_handle_irq(const u8 data_mask, const u8 ev)
2184 {
2185         /*
2186          * 0x31 could mean we have to take some extra action and wait for
2187          * the next irq for some Type3 models, it will generate a new
2188          * irq and we can read new data from the device:
2189          *  - 0x5c and 0x5f requires 0xA0
2190          *  - 0x61 requires 0xB3
2191          */
2192         if (data_mask == 0x31) {
2193                 if (ev == 0x5c || ev == 0x5f)
2194                         sony_pic_call1(0xA0);
2195                 else if (ev == 0x61)
2196                         sony_pic_call1(0xB3);
2197                 return 0;
2198         }
2199         return 1;
2200 }
2201
2202 static void sony_pic_detect_device_type(struct sony_pic_dev *dev)
2203 {
2204         struct pci_dev *pcidev;
2205
2206         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
2207                         PCI_DEVICE_ID_INTEL_82371AB_3, NULL);
2208         if (pcidev) {
2209                 dev->model = SONYPI_DEVICE_TYPE1;
2210                 dev->evport_offset = SONYPI_TYPE1_OFFSET;
2211                 dev->event_types = type1_events;
2212                 goto out;
2213         }
2214
2215         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
2216                         PCI_DEVICE_ID_INTEL_ICH6_1, NULL);
2217         if (pcidev) {
2218                 dev->model = SONYPI_DEVICE_TYPE2;
2219                 dev->evport_offset = SONYPI_TYPE2_OFFSET;
2220                 dev->event_types = type2_events;
2221                 goto out;
2222         }
2223
2224         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
2225                         PCI_DEVICE_ID_INTEL_ICH7_1, NULL);
2226         if (pcidev) {
2227                 dev->model = SONYPI_DEVICE_TYPE3;
2228                 dev->handle_irq = type3_handle_irq;
2229                 dev->evport_offset = SONYPI_TYPE3_OFFSET;
2230                 dev->event_types = type3_events;
2231                 goto out;
2232         }
2233
2234         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
2235                         PCI_DEVICE_ID_INTEL_ICH8_4, NULL);
2236         if (pcidev) {
2237                 dev->model = SONYPI_DEVICE_TYPE3;
2238                 dev->handle_irq = type3_handle_irq;
2239                 dev->evport_offset = SONYPI_TYPE3_OFFSET;
2240                 dev->event_types = type3_events;
2241                 goto out;
2242         }
2243
2244         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
2245                         PCI_DEVICE_ID_INTEL_ICH9_1, NULL);
2246         if (pcidev) {
2247                 dev->model = SONYPI_DEVICE_TYPE3;
2248                 dev->handle_irq = type3_handle_irq;
2249                 dev->evport_offset = SONYPI_TYPE3_OFFSET;
2250                 dev->event_types = type3_events;
2251                 goto out;
2252         }
2253
2254         /* default */
2255         dev->model = SONYPI_DEVICE_TYPE2;
2256         dev->evport_offset = SONYPI_TYPE2_OFFSET;
2257         dev->event_types = type2_events;
2258
2259 out:
2260         if (pcidev)
2261                 pci_dev_put(pcidev);
2262
2263         pr_info("detected Type%d model\n",
2264                 dev->model == SONYPI_DEVICE_TYPE1 ? 1 :
2265                 dev->model == SONYPI_DEVICE_TYPE2 ? 2 : 3);
2266 }
2267
2268 /* camera tests and poweron/poweroff */
2269 #define SONYPI_CAMERA_PICTURE           5
2270 #define SONYPI_CAMERA_CONTROL           0x10
2271
2272 #define SONYPI_CAMERA_BRIGHTNESS                0
2273 #define SONYPI_CAMERA_CONTRAST                  1
2274 #define SONYPI_CAMERA_HUE                       2
2275 #define SONYPI_CAMERA_COLOR                     3
2276 #define SONYPI_CAMERA_SHARPNESS                 4
2277
2278 #define SONYPI_CAMERA_EXPOSURE_MASK             0xC
2279 #define SONYPI_CAMERA_WHITE_BALANCE_MASK        0x3
2280 #define SONYPI_CAMERA_PICTURE_MODE_MASK         0x30
2281 #define SONYPI_CAMERA_MUTE_MASK                 0x40
2282
2283 /* the rest don't need a loop until not 0xff */
2284 #define SONYPI_CAMERA_AGC                       6
2285 #define SONYPI_CAMERA_AGC_MASK                  0x30
2286 #define SONYPI_CAMERA_SHUTTER_MASK              0x7
2287
2288 #define SONYPI_CAMERA_SHUTDOWN_REQUEST          7
2289 #define SONYPI_CAMERA_CONTROL                   0x10
2290
2291 #define SONYPI_CAMERA_STATUS                    7
2292 #define SONYPI_CAMERA_STATUS_READY              0x2
2293 #define SONYPI_CAMERA_STATUS_POSITION           0x4
2294
2295 #define SONYPI_DIRECTION_BACKWARDS              0x4
2296
2297 #define SONYPI_CAMERA_REVISION                  8
2298 #define SONYPI_CAMERA_ROMVERSION                9
2299
2300 static int __sony_pic_camera_ready(void)
2301 {
2302         u8 v;
2303
2304         v = sony_pic_call2(0x8f, SONYPI_CAMERA_STATUS);
2305         return (v != 0xff && (v & SONYPI_CAMERA_STATUS_READY));
2306 }
2307
2308 static int __sony_pic_camera_off(void)
2309 {
2310         if (!camera) {
2311                 pr_warn("camera control not enabled\n");
2312                 return -ENODEV;
2313         }
2314
2315         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE,
2316                                 SONYPI_CAMERA_MUTE_MASK),
2317                         ITERATIONS_SHORT);
2318
2319         if (spic_dev.camera_power) {
2320                 sony_pic_call2(0x91, 0);
2321                 spic_dev.camera_power = 0;
2322         }
2323         return 0;
2324 }
2325
2326 static int __sony_pic_camera_on(void)
2327 {
2328         int i, j, x;
2329
2330         if (!camera) {
2331                 pr_warn("camera control not enabled\n");
2332                 return -ENODEV;
2333         }
2334
2335         if (spic_dev.camera_power)
2336                 return 0;
2337
2338         for (j = 5; j > 0; j--) {
2339
2340                 for (x = 0; x < 100 && sony_pic_call2(0x91, 0x1); x++)
2341                         msleep(10);
2342                 sony_pic_call1(0x93);
2343
2344                 for (i = 400; i > 0; i--) {
2345                         if (__sony_pic_camera_ready())
2346                                 break;
2347                         msleep(10);
2348                 }
2349                 if (i)
2350                         break;
2351         }
2352
2353         if (j == 0) {
2354                 pr_warn("failed to power on camera\n");
2355                 return -ENODEV;
2356         }
2357
2358         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTROL,
2359                                 0x5a),
2360                         ITERATIONS_SHORT);
2361
2362         spic_dev.camera_power = 1;
2363         return 0;
2364 }
2365
2366 /* External camera command (exported to the motion eye v4l driver) */
2367 int sony_pic_camera_command(int command, u8 value)
2368 {
2369         if (!camera)
2370                 return -EIO;
2371
2372         mutex_lock(&spic_dev.lock);
2373
2374         switch (command) {
2375         case SONY_PIC_COMMAND_SETCAMERA:
2376                 if (value)
2377                         __sony_pic_camera_on();
2378                 else
2379                         __sony_pic_camera_off();
2380                 break;
2381         case SONY_PIC_COMMAND_SETCAMERABRIGHTNESS:
2382                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_BRIGHTNESS, value),
2383                                 ITERATIONS_SHORT);
2384                 break;
2385         case SONY_PIC_COMMAND_SETCAMERACONTRAST:
2386                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTRAST, value),
2387                                 ITERATIONS_SHORT);
2388                 break;
2389         case SONY_PIC_COMMAND_SETCAMERAHUE:
2390                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_HUE, value),
2391                                 ITERATIONS_SHORT);
2392                 break;
2393         case SONY_PIC_COMMAND_SETCAMERACOLOR:
2394                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_COLOR, value),
2395                                 ITERATIONS_SHORT);
2396                 break;
2397         case SONY_PIC_COMMAND_SETCAMERASHARPNESS:
2398                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_SHARPNESS, value),
2399                                 ITERATIONS_SHORT);
2400                 break;
2401         case SONY_PIC_COMMAND_SETCAMERAPICTURE:
2402                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE, value),
2403                                 ITERATIONS_SHORT);
2404                 break;
2405         case SONY_PIC_COMMAND_SETCAMERAAGC:
2406                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_AGC, value),
2407                                 ITERATIONS_SHORT);
2408                 break;
2409         default:
2410                 pr_err("sony_pic_camera_command invalid: %d\n", command);
2411                 break;
2412         }
2413         mutex_unlock(&spic_dev.lock);
2414         return 0;
2415 }
2416 EXPORT_SYMBOL(sony_pic_camera_command);
2417
2418 /* gprs/edge modem (SZ460N and SZ210P), thanks to Joshua Wise */
2419 static void __sony_pic_set_wwanpower(u8 state)
2420 {
2421         state = !!state;
2422         if (spic_dev.wwan_power == state)
2423                 return;
2424         sony_pic_call2(0xB0, state);
2425         sony_pic_call1(0x82);
2426         spic_dev.wwan_power = state;
2427 }
2428
2429 static ssize_t sony_pic_wwanpower_store(struct device *dev,
2430                 struct device_attribute *attr,
2431                 const char *buffer, size_t count)
2432 {
2433         unsigned long value;
2434         if (count > 31)
2435                 return -EINVAL;
2436
2437         value = simple_strtoul(buffer, NULL, 10);
2438         mutex_lock(&spic_dev.lock);
2439         __sony_pic_set_wwanpower(value);
2440         mutex_unlock(&spic_dev.lock);
2441
2442         return count;
2443 }
2444
2445 static ssize_t sony_pic_wwanpower_show(struct device *dev,
2446                 struct device_attribute *attr, char *buffer)
2447 {
2448         ssize_t count;
2449         mutex_lock(&spic_dev.lock);
2450         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.wwan_power);
2451         mutex_unlock(&spic_dev.lock);
2452         return count;
2453 }
2454
2455 /* bluetooth subsystem power state */
2456 static void __sony_pic_set_bluetoothpower(u8 state)
2457 {
2458         state = !!state;
2459         if (spic_dev.bluetooth_power == state)
2460                 return;
2461         sony_pic_call2(0x96, state);
2462         sony_pic_call1(0x82);
2463         spic_dev.bluetooth_power = state;
2464 }
2465
2466 static ssize_t sony_pic_bluetoothpower_store(struct device *dev,
2467                 struct device_attribute *attr,
2468                 const char *buffer, size_t count)
2469 {
2470         unsigned long value;
2471         if (count > 31)
2472                 return -EINVAL;
2473
2474         value = simple_strtoul(buffer, NULL, 10);
2475         mutex_lock(&spic_dev.lock);
2476         __sony_pic_set_bluetoothpower(value);
2477         mutex_unlock(&spic_dev.lock);
2478
2479         return count;
2480 }
2481
2482 static ssize_t sony_pic_bluetoothpower_show(struct device *dev,
2483                 struct device_attribute *attr, char *buffer)
2484 {
2485         ssize_t count = 0;
2486         mutex_lock(&spic_dev.lock);
2487         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.bluetooth_power);
2488         mutex_unlock(&spic_dev.lock);
2489         return count;
2490 }
2491
2492 /* fan speed */
2493 /* FAN0 information (reverse engineered from ACPI tables) */
2494 #define SONY_PIC_FAN0_STATUS    0x93
2495 static int sony_pic_set_fanspeed(unsigned long value)
2496 {
2497         return ec_write(SONY_PIC_FAN0_STATUS, value);
2498 }
2499
2500 static int sony_pic_get_fanspeed(u8 *value)
2501 {
2502         return ec_read(SONY_PIC_FAN0_STATUS, value);
2503 }
2504
2505 static ssize_t sony_pic_fanspeed_store(struct device *dev,
2506                 struct device_attribute *attr,
2507                 const char *buffer, size_t count)
2508 {
2509         unsigned long value;
2510         if (count > 31)
2511                 return -EINVAL;
2512
2513         value = simple_strtoul(buffer, NULL, 10);
2514         if (sony_pic_set_fanspeed(value))
2515                 return -EIO;
2516
2517         return count;
2518 }
2519
2520 static ssize_t sony_pic_fanspeed_show(struct device *dev,
2521                 struct device_attribute *attr, char *buffer)
2522 {
2523         u8 value = 0;
2524         if (sony_pic_get_fanspeed(&value))
2525                 return -EIO;
2526
2527         return snprintf(buffer, PAGE_SIZE, "%d\n", value);
2528 }
2529
2530 #define SPIC_ATTR(_name, _mode)                                 \
2531 struct device_attribute spic_attr_##_name = __ATTR(_name,       \
2532                 _mode, sony_pic_## _name ##_show,               \
2533                 sony_pic_## _name ##_store)
2534
2535 static SPIC_ATTR(bluetoothpower, 0644);
2536 static SPIC_ATTR(wwanpower, 0644);
2537 static SPIC_ATTR(fanspeed, 0644);
2538
2539 static struct attribute *spic_attributes[] = {
2540         &spic_attr_bluetoothpower.attr,
2541         &spic_attr_wwanpower.attr,
2542         &spic_attr_fanspeed.attr,
2543         NULL
2544 };
2545
2546 static struct attribute_group spic_attribute_group = {
2547         .attrs = spic_attributes
2548 };
2549
2550 /******** SONYPI compatibility **********/
2551 #ifdef CONFIG_SONYPI_COMPAT
2552
2553 /* battery / brightness / temperature  addresses */
2554 #define SONYPI_BAT_FLAGS        0x81
2555 #define SONYPI_LCD_LIGHT        0x96
2556 #define SONYPI_BAT1_PCTRM       0xa0
2557 #define SONYPI_BAT1_LEFT        0xa2
2558 #define SONYPI_BAT1_MAXRT       0xa4
2559 #define SONYPI_BAT2_PCTRM       0xa8
2560 #define SONYPI_BAT2_LEFT        0xaa
2561 #define SONYPI_BAT2_MAXRT       0xac
2562 #define SONYPI_BAT1_MAXTK       0xb0
2563 #define SONYPI_BAT1_FULL        0xb2
2564 #define SONYPI_BAT2_MAXTK       0xb8
2565 #define SONYPI_BAT2_FULL        0xba
2566 #define SONYPI_TEMP_STATUS      0xC1
2567
2568 struct sonypi_compat_s {
2569         struct fasync_struct    *fifo_async;
2570         struct kfifo            fifo;
2571         spinlock_t              fifo_lock;
2572         wait_queue_head_t       fifo_proc_list;
2573         atomic_t                open_count;
2574 };
2575 static struct sonypi_compat_s sonypi_compat = {
2576         .open_count = ATOMIC_INIT(0),
2577 };
2578
2579 static int sonypi_misc_fasync(int fd, struct file *filp, int on)
2580 {
2581         return fasync_helper(fd, filp, on, &sonypi_compat.fifo_async);
2582 }
2583
2584 static int sonypi_misc_release(struct inode *inode, struct file *file)
2585 {
2586         atomic_dec(&sonypi_compat.open_count);
2587         return 0;
2588 }
2589
2590 static int sonypi_misc_open(struct inode *inode, struct file *file)
2591 {
2592         /* Flush input queue on first open */
2593         unsigned long flags;
2594
2595         spin_lock_irqsave(&sonypi_compat.fifo_lock, flags);
2596
2597         if (atomic_inc_return(&sonypi_compat.open_count) == 1)
2598                 kfifo_reset(&sonypi_compat.fifo);
2599
2600         spin_unlock_irqrestore(&sonypi_compat.fifo_lock, flags);
2601
2602         return 0;
2603 }
2604
2605 static ssize_t sonypi_misc_read(struct file *file, char __user *buf,
2606                                 size_t count, loff_t *pos)
2607 {
2608         ssize_t ret;
2609         unsigned char c;
2610
2611         if ((kfifo_len(&sonypi_compat.fifo) == 0) &&
2612             (file->f_flags & O_NONBLOCK))
2613                 return -EAGAIN;
2614
2615         ret = wait_event_interruptible(sonypi_compat.fifo_proc_list,
2616                                        kfifo_len(&sonypi_compat.fifo) != 0);
2617         if (ret)
2618                 return ret;
2619
2620         while (ret < count &&
2621                (kfifo_out_locked(&sonypi_compat.fifo, &c, sizeof(c),
2622                           &sonypi_compat.fifo_lock) == sizeof(c))) {
2623                 if (put_user(c, buf++))
2624                         return -EFAULT;
2625                 ret++;
2626         }
2627
2628         if (ret > 0) {
2629                 struct inode *inode = file->f_path.dentry->d_inode;
2630                 inode->i_atime = current_fs_time(inode->i_sb);
2631         }
2632
2633         return ret;
2634 }
2635
2636 static unsigned int sonypi_misc_poll(struct file *file, poll_table *wait)
2637 {
2638         poll_wait(file, &sonypi_compat.fifo_proc_list, wait);
2639         if (kfifo_len(&sonypi_compat.fifo))
2640                 return POLLIN | POLLRDNORM;
2641         return 0;
2642 }
2643
2644 static int ec_read16(u8 addr, u16 *value)
2645 {
2646         u8 val_lb, val_hb;
2647         if (ec_read(addr, &val_lb))
2648                 return -1;
2649         if (ec_read(addr + 1, &val_hb))
2650                 return -1;
2651         *value = val_lb | (val_hb << 8);
2652         return 0;
2653 }
2654
2655 static long sonypi_misc_ioctl(struct file *fp, unsigned int cmd,
2656                                                         unsigned long arg)
2657 {
2658         int ret = 0;
2659         void __user *argp = (void __user *)arg;
2660         u8 val8;
2661         u16 val16;
2662         int value;
2663
2664         mutex_lock(&spic_dev.lock);
2665         switch (cmd) {
2666         case SONYPI_IOCGBRT:
2667                 if (sony_bl_props.dev == NULL) {
2668                         ret = -EIO;
2669                         break;
2670                 }
2671                 if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value)) {
2672                         ret = -EIO;
2673                         break;
2674                 }
2675                 val8 = ((value & 0xff) - 1) << 5;
2676                 if (copy_to_user(argp, &val8, sizeof(val8)))
2677                                 ret = -EFAULT;
2678                 break;
2679         case SONYPI_IOCSBRT:
2680                 if (sony_bl_props.dev == NULL) {
2681                         ret = -EIO;
2682                         break;
2683                 }
2684                 if (copy_from_user(&val8, argp, sizeof(val8))) {
2685                         ret = -EFAULT;
2686                         break;
2687                 }
2688                 if (acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
2689                                 (val8 >> 5) + 1, NULL)) {
2690                         ret = -EIO;
2691                         break;
2692                 }
2693                 /* sync the backlight device status */
2694                 sony_bl_props.dev->props.brightness =
2695                     sony_backlight_get_brightness(sony_bl_props.dev);
2696                 break;
2697         case SONYPI_IOCGBAT1CAP:
2698                 if (ec_read16(SONYPI_BAT1_FULL, &val16)) {
2699                         ret = -EIO;
2700                         break;
2701                 }
2702                 if (copy_to_user(argp, &val16, sizeof(val16)))
2703                         ret = -EFAULT;
2704                 break;
2705         case SONYPI_IOCGBAT1REM:
2706                 if (ec_read16(SONYPI_BAT1_LEFT, &val16)) {
2707                         ret = -EIO;
2708                         break;
2709                 }
2710                 if (copy_to_user(argp, &val16, sizeof(val16)))
2711                         ret = -EFAULT;
2712                 break;
2713         case SONYPI_IOCGBAT2CAP:
2714                 if (ec_read16(SONYPI_BAT2_FULL, &val16)) {
2715                         ret = -EIO;
2716                         break;
2717                 }
2718                 if (copy_to_user(argp, &val16, sizeof(val16)))
2719                         ret = -EFAULT;
2720                 break;
2721         case SONYPI_IOCGBAT2REM:
2722                 if (ec_read16(SONYPI_BAT2_LEFT, &val16)) {
2723                         ret = -EIO;
2724                         break;
2725                 }
2726                 if (copy_to_user(argp, &val16, sizeof(val16)))
2727                         ret = -EFAULT;
2728                 break;
2729         case SONYPI_IOCGBATFLAGS:
2730                 if (ec_read(SONYPI_BAT_FLAGS, &val8)) {
2731                         ret = -EIO;
2732                         break;
2733                 }
2734                 val8 &= 0x07;
2735                 if (copy_to_user(argp, &val8, sizeof(val8)))
2736                         ret = -EFAULT;
2737                 break;
2738         case SONYPI_IOCGBLUE:
2739                 val8 = spic_dev.bluetooth_power;
2740                 if (copy_to_user(argp, &val8, sizeof(val8)))
2741                         ret = -EFAULT;
2742                 break;
2743         case SONYPI_IOCSBLUE:
2744                 if (copy_from_user(&val8, argp, sizeof(val8))) {
2745                         ret = -EFAULT;
2746                         break;
2747                 }
2748                 __sony_pic_set_bluetoothpower(val8);
2749                 break;
2750         /* FAN Controls */
2751         case SONYPI_IOCGFAN:
2752                 if (sony_pic_get_fanspeed(&val8)) {
2753                         ret = -EIO;
2754                         break;
2755                 }
2756                 if (copy_to_user(argp, &val8, sizeof(val8)))
2757                         ret = -EFAULT;
2758                 break;
2759         case SONYPI_IOCSFAN:
2760                 if (copy_from_user(&val8, argp, sizeof(val8))) {
2761                         ret = -EFAULT;
2762                         break;
2763                 }
2764                 if (sony_pic_set_fanspeed(val8))
2765                         ret = -EIO;
2766                 break;
2767         /* GET Temperature (useful under APM) */
2768         case SONYPI_IOCGTEMP:
2769                 if (ec_read(SONYPI_TEMP_STATUS, &val8)) {
2770                         ret = -EIO;
2771                         break;
2772                 }
2773                 if (copy_to_user(argp, &val8, sizeof(val8)))
2774                         ret = -EFAULT;
2775                 break;
2776         default:
2777                 ret = -EINVAL;
2778         }
2779         mutex_unlock(&spic_dev.lock);
2780         return ret;
2781 }
2782
2783 static const struct file_operations sonypi_misc_fops = {
2784         .owner          = THIS_MODULE,
2785         .read           = sonypi_misc_read,
2786         .poll           = sonypi_misc_poll,
2787         .open           = sonypi_misc_open,
2788         .release        = sonypi_misc_release,
2789         .fasync         = sonypi_misc_fasync,
2790         .unlocked_ioctl = sonypi_misc_ioctl,
2791         .llseek         = noop_llseek,
2792 };
2793
2794 static struct miscdevice sonypi_misc_device = {
2795         .minor          = MISC_DYNAMIC_MINOR,
2796         .name           = "sonypi",
2797         .fops           = &sonypi_misc_fops,
2798 };
2799
2800 static void sonypi_compat_report_event(u8 event)
2801 {
2802         kfifo_in_locked(&sonypi_compat.fifo, (unsigned char *)&event,
2803                         sizeof(event), &sonypi_compat.fifo_lock);
2804         kill_fasync(&sonypi_compat.fifo_async, SIGIO, POLL_IN);
2805         wake_up_interruptible(&sonypi_compat.fifo_proc_list);
2806 }
2807
2808 static int sonypi_compat_init(void)
2809 {
2810         int error;
2811
2812         spin_lock_init(&sonypi_compat.fifo_lock);
2813         error =
2814          kfifo_alloc(&sonypi_compat.fifo, SONY_LAPTOP_BUF_SIZE, GFP_KERNEL);
2815         if (error) {
2816                 pr_err("kfifo_alloc failed\n");
2817                 return error;
2818         }
2819
2820         init_waitqueue_head(&sonypi_compat.fifo_proc_list);
2821
2822         if (minor != -1)
2823                 sonypi_misc_device.minor = minor;
2824         error = misc_register(&sonypi_misc_device);
2825         if (error) {
2826                 pr_err("misc_register failed\n");
2827                 goto err_free_kfifo;
2828         }
2829         if (minor == -1)
2830                 pr_info("device allocated minor is %d\n",
2831                         sonypi_misc_device.minor);
2832
2833         return 0;
2834
2835 err_free_kfifo:
2836         kfifo_free(&sonypi_compat.fifo);
2837         return error;
2838 }
2839
2840 static void sonypi_compat_exit(void)
2841 {
2842         misc_deregister(&sonypi_misc_device);
2843         kfifo_free(&sonypi_compat.fifo);
2844 }
2845 #else
2846 static int sonypi_compat_init(void) { return 0; }
2847 static void sonypi_compat_exit(void) { }
2848 static void sonypi_compat_report_event(u8 event) { }
2849 #endif /* CONFIG_SONYPI_COMPAT */
2850
2851 /*
2852  * ACPI callbacks
2853  */
2854 static acpi_status
2855 sony_pic_read_possible_resource(struct acpi_resource *resource, void *context)
2856 {
2857         u32 i;
2858         struct sony_pic_dev *dev = (struct sony_pic_dev *)context;
2859
2860         switch (resource->type) {
2861         case ACPI_RESOURCE_TYPE_START_DEPENDENT:
2862                 {
2863                         /* start IO enumeration */
2864                         struct sony_pic_ioport *ioport = kzalloc(sizeof(*ioport), GFP_KERNEL);
2865                         if (!ioport)
2866                                 return AE_ERROR;
2867
2868                         list_add(&ioport->list, &dev->ioports);
2869                         return AE_OK;
2870                 }
2871
2872         case ACPI_RESOURCE_TYPE_END_DEPENDENT:
2873                 /* end IO enumeration */
2874                 return AE_OK;
2875
2876         case ACPI_RESOURCE_TYPE_IRQ:
2877                 {
2878                         struct acpi_resource_irq *p = &resource->data.irq;
2879                         struct sony_pic_irq *interrupt = NULL;
2880                         if (!p || !p->interrupt_count) {
2881                                 /*
2882                                  * IRQ descriptors may have no IRQ# bits set,
2883                                  * particularly those those w/ _STA disabled
2884                                  */
2885                                 dprintk("Blank IRQ resource\n");
2886                                 return AE_OK;
2887                         }
2888                         for (i = 0; i < p->interrupt_count; i++) {
2889                                 if (!p->interrupts[i]) {
2890                                         pr_warn("Invalid IRQ %d\n",
2891                                                 p->interrupts[i]);
2892                                         continue;
2893                                 }
2894                                 interrupt = kzalloc(sizeof(*interrupt),
2895                                                 GFP_KERNEL);
2896                                 if (!interrupt)
2897                                         return AE_ERROR;
2898
2899                                 list_add(&interrupt->list, &dev->interrupts);
2900                                 interrupt->irq.triggering = p->triggering;
2901                                 interrupt->irq.polarity = p->polarity;
2902                                 interrupt->irq.sharable = p->sharable;
2903                                 interrupt->irq.interrupt_count = 1;
2904                                 interrupt->irq.interrupts[0] = p->interrupts[i];
2905                         }
2906                         return AE_OK;
2907                 }
2908         case ACPI_RESOURCE_TYPE_IO:
2909                 {
2910                         struct acpi_resource_io *io = &resource->data.io;
2911                         struct sony_pic_ioport *ioport =
2912                                 list_first_entry(&dev->ioports, struct sony_pic_ioport, list);
2913                         if (!io) {
2914                                 dprintk("Blank IO resource\n");
2915                                 return AE_OK;
2916                         }
2917
2918                         if (!ioport->io1.minimum) {
2919                                 memcpy(&ioport->io1, io, sizeof(*io));
2920                                 dprintk("IO1 at 0x%.4x (0x%.2x)\n", ioport->io1.minimum,
2921                                                 ioport->io1.address_length);
2922                         }
2923                         else if (!ioport->io2.minimum) {
2924                                 memcpy(&ioport->io2, io, sizeof(*io));
2925                                 dprintk("IO2 at 0x%.4x (0x%.2x)\n", ioport->io2.minimum,
2926                                                 ioport->io2.address_length);
2927                         }
2928                         else {
2929                                 pr_err("Unknown SPIC Type, more than 2 IO Ports\n");
2930                                 return AE_ERROR;
2931                         }
2932                         return AE_OK;
2933                 }
2934         default:
2935                 dprintk("Resource %d isn't an IRQ nor an IO port\n",
2936                         resource->type);
2937
2938         case ACPI_RESOURCE_TYPE_END_TAG:
2939                 return AE_OK;
2940         }
2941         return AE_CTRL_TERMINATE;
2942 }
2943
2944 static int sony_pic_possible_resources(struct acpi_device *device)
2945 {
2946         int result = 0;
2947         acpi_status status = AE_OK;
2948
2949         if (!device)
2950                 return -EINVAL;
2951
2952         /* get device status */
2953         /* see acpi_pci_link_get_current acpi_pci_link_get_possible */
2954         dprintk("Evaluating _STA\n");
2955         result = acpi_bus_get_status(device);
2956         if (result) {
2957                 pr_warn("Unable to read status\n");
2958                 goto end;
2959         }
2960
2961         if (!device->status.enabled)
2962                 dprintk("Device disabled\n");
2963         else
2964                 dprintk("Device enabled\n");
2965
2966         /*
2967          * Query and parse 'method'
2968          */
2969         dprintk("Evaluating %s\n", METHOD_NAME__PRS);
2970         status = acpi_walk_resources(device->handle, METHOD_NAME__PRS,
2971                         sony_pic_read_possible_resource, &spic_dev);
2972         if (ACPI_FAILURE(status)) {
2973                 pr_warn("Failure evaluating %s\n", METHOD_NAME__PRS);
2974                 result = -ENODEV;
2975         }
2976 end:
2977         return result;
2978 }
2979
2980 /*
2981  *  Disable the spic device by calling its _DIS method
2982  */
2983 static int sony_pic_disable(struct acpi_device *device)
2984 {
2985         acpi_status ret = acpi_evaluate_object(device->handle, "_DIS", NULL,
2986                                                NULL);
2987
2988         if (ACPI_FAILURE(ret) && ret != AE_NOT_FOUND)
2989                 return -ENXIO;
2990
2991         dprintk("Device disabled\n");
2992         return 0;
2993 }
2994
2995
2996 /*
2997  *  Based on drivers/acpi/pci_link.c:acpi_pci_link_set
2998  *
2999  *  Call _SRS to set current resources
3000  */
3001 static int sony_pic_enable(struct acpi_device *device,
3002                 struct sony_pic_ioport *ioport, struct sony_pic_irq *irq)
3003 {
3004         acpi_status status;
3005         int result = 0;
3006         /* Type 1 resource layout is:
3007          *    IO
3008          *    IO
3009          *    IRQNoFlags
3010          *    End
3011          *
3012          * Type 2 and 3 resource layout is:
3013          *    IO
3014          *    IRQNoFlags
3015          *    End
3016          */
3017         struct {
3018                 struct acpi_resource res1;
3019                 struct acpi_resource res2;
3020                 struct acpi_resource res3;
3021                 struct acpi_resource res4;
3022         } *resource;
3023         struct acpi_buffer buffer = { 0, NULL };
3024
3025         if (!ioport || !irq)
3026                 return -EINVAL;
3027
3028         /* init acpi_buffer */
3029         resource = kzalloc(sizeof(*resource) + 1, GFP_KERNEL);
3030         if (!resource)
3031                 return -ENOMEM;
3032
3033         buffer.length = sizeof(*resource) + 1;
3034         buffer.pointer = resource;
3035
3036         /* setup Type 1 resources */
3037         if (spic_dev.model == SONYPI_DEVICE_TYPE1) {
3038
3039                 /* setup io resources */
3040                 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
3041                 resource->res1.length = sizeof(struct acpi_resource);
3042                 memcpy(&resource->res1.data.io, &ioport->io1,
3043                                 sizeof(struct acpi_resource_io));
3044
3045                 resource->res2.type = ACPI_RESOURCE_TYPE_IO;
3046                 resource->res2.length = sizeof(struct acpi_resource);
3047                 memcpy(&resource->res2.data.io, &ioport->io2,
3048                                 sizeof(struct acpi_resource_io));
3049
3050                 /* setup irq resource */
3051                 resource->res3.type = ACPI_RESOURCE_TYPE_IRQ;
3052                 resource->res3.length = sizeof(struct acpi_resource);
3053                 memcpy(&resource->res3.data.irq, &irq->irq,
3054                                 sizeof(struct acpi_resource_irq));
3055                 /* we requested a shared irq */
3056                 resource->res3.data.irq.sharable = ACPI_SHARED;
3057
3058                 resource->res4.type = ACPI_RESOURCE_TYPE_END_TAG;
3059
3060         }
3061         /* setup Type 2/3 resources */
3062         else {
3063                 /* setup io resource */
3064                 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
3065                 resource->res1.length = sizeof(struct acpi_resource);
3066                 memcpy(&resource->res1.data.io, &ioport->io1,
3067                                 sizeof(struct acpi_resource_io));
3068
3069                 /* setup irq resource */
3070                 resource->res2.type = ACPI_RESOURCE_TYPE_IRQ;
3071                 resource->res2.length = sizeof(struct acpi_resource);
3072                 memcpy(&resource->res2.data.irq, &irq->irq,
3073                                 sizeof(struct acpi_resource_irq));
3074                 /* we requested a shared irq */
3075                 resource->res2.data.irq.sharable = ACPI_SHARED;
3076
3077                 resource->res3.type = ACPI_RESOURCE_TYPE_END_TAG;
3078         }
3079
3080         /* Attempt to set the resource */
3081         dprintk("Evaluating _SRS\n");
3082         status = acpi_set_current_resources(device->handle, &buffer);
3083
3084         /* check for total failure */
3085         if (ACPI_FAILURE(status)) {
3086                 pr_err("Error evaluating _SRS\n");
3087                 result = -ENODEV;
3088                 goto end;
3089         }
3090
3091         /* Necessary device initializations calls (from sonypi) */
3092         sony_pic_call1(0x82);
3093         sony_pic_call2(0x81, 0xff);
3094         sony_pic_call1(compat ? 0x92 : 0x82);
3095
3096 end:
3097         kfree(resource);
3098         return result;
3099 }
3100
3101 /*****************
3102  *
3103  * ISR: some event is available
3104  *
3105  *****************/
3106 static irqreturn_t sony_pic_irq(int irq, void *dev_id)
3107 {
3108         int i, j;
3109         u8 ev = 0;
3110         u8 data_mask = 0;
3111         u8 device_event = 0;
3112
3113         struct sony_pic_dev *dev = (struct sony_pic_dev *) dev_id;
3114
3115         ev = inb_p(dev->cur_ioport->io1.minimum);
3116         if (dev->cur_ioport->io2.minimum)
3117                 data_mask = inb_p(dev->cur_ioport->io2.minimum);
3118         else
3119                 data_mask = inb_p(dev->cur_ioport->io1.minimum +
3120                                 dev->evport_offset);
3121
3122         dprintk("event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
3123                         ev, data_mask, dev->cur_ioport->io1.minimum,
3124                         dev->evport_offset);
3125
3126         if (ev == 0x00 || ev == 0xff)
3127                 return IRQ_HANDLED;
3128
3129         for (i = 0; dev->event_types[i].mask; i++) {
3130
3131                 if ((data_mask & dev->event_types[i].data) !=
3132                     dev->event_types[i].data)
3133                         continue;
3134
3135                 if (!(mask & dev->event_types[i].mask))
3136                         continue;
3137
3138                 for (j = 0; dev->event_types[i].events[j].event; j++) {
3139                         if (ev == dev->event_types[i].events[j].data) {
3140                                 device_event =
3141                                         dev->event_types[i].events[j].event;
3142                                 /* some events may require ignoring */
3143                                 if (!device_event)
3144                                         return IRQ_HANDLED;
3145                                 goto found;
3146                         }
3147                 }
3148         }
3149         /* Still not able to decode the event try to pass
3150          * it over to the minidriver
3151          */
3152         if (dev->handle_irq && dev->handle_irq(data_mask, ev) == 0)
3153                 return IRQ_HANDLED;
3154
3155         dprintk("unknown event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
3156                         ev, data_mask, dev->cur_ioport->io1.minimum,
3157                         dev->evport_offset);
3158         return IRQ_HANDLED;
3159
3160 found:
3161         sony_laptop_report_input_event(device_event);
3162         acpi_bus_generate_proc_event(dev->acpi_dev, 1, device_event);
3163         sonypi_compat_report_event(device_event);
3164         return IRQ_HANDLED;
3165 }
3166
3167 /*****************
3168  *
3169  *  ACPI driver
3170  *
3171  *****************/
3172 static int sony_pic_remove(struct acpi_device *device, int type)
3173 {
3174         struct sony_pic_ioport *io, *tmp_io;
3175         struct sony_pic_irq *irq, *tmp_irq;
3176
3177         if (sony_pic_disable(device)) {
3178                 pr_err("Couldn't disable device\n");
3179                 return -ENXIO;
3180         }
3181
3182         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
3183         release_region(spic_dev.cur_ioport->io1.minimum,
3184                         spic_dev.cur_ioport->io1.address_length);
3185         if (spic_dev.cur_ioport->io2.minimum)
3186                 release_region(spic_dev.cur_ioport->io2.minimum,
3187                                 spic_dev.cur_ioport->io2.address_length);
3188
3189         sonypi_compat_exit();
3190
3191         sony_laptop_remove_input();
3192
3193         /* pf attrs */
3194         sysfs_remove_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
3195         sony_pf_remove();
3196
3197         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
3198                 list_del(&io->list);
3199                 kfree(io);
3200         }
3201         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
3202                 list_del(&irq->list);
3203                 kfree(irq);
3204         }
3205         spic_dev.cur_ioport = NULL;
3206         spic_dev.cur_irq = NULL;
3207
3208         dprintk(SONY_PIC_DRIVER_NAME " removed.\n");
3209         return 0;
3210 }
3211
3212 static int sony_pic_add(struct acpi_device *device)
3213 {
3214         int result;
3215         struct sony_pic_ioport *io, *tmp_io;
3216         struct sony_pic_irq *irq, *tmp_irq;
3217
3218         pr_info("%s v%s\n", SONY_PIC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
3219
3220         spic_dev.acpi_dev = device;
3221         strcpy(acpi_device_class(device), "sony/hotkey");
3222         sony_pic_detect_device_type(&spic_dev);
3223         mutex_init(&spic_dev.lock);
3224
3225         /* read _PRS resources */
3226         result = sony_pic_possible_resources(device);
3227         if (result) {
3228                 pr_err("Unable to read possible resources\n");
3229                 goto err_free_resources;
3230         }
3231
3232         /* setup input devices and helper fifo */
3233         result = sony_laptop_setup_input(device);
3234         if (result) {
3235                 pr_err("Unable to create input devices\n");
3236                 goto err_free_resources;
3237         }
3238
3239         if (sonypi_compat_init())
3240                 goto err_remove_input;
3241
3242         /* request io port */
3243         list_for_each_entry_reverse(io, &spic_dev.ioports, list) {
3244                 if (request_region(io->io1.minimum, io->io1.address_length,
3245                                         "Sony Programmable I/O Device")) {
3246                         dprintk("I/O port1: 0x%.4x (0x%.4x) + 0x%.2x\n",
3247                                         io->io1.minimum, io->io1.maximum,
3248                                         io->io1.address_length);
3249                         /* Type 1 have 2 ioports */
3250                         if (io->io2.minimum) {
3251                                 if (request_region(io->io2.minimum,
3252                                                 io->io2.address_length,
3253                                                 "Sony Programmable I/O Device")) {
3254                                         dprintk("I/O port2: 0x%.4x (0x%.4x) + 0x%.2x\n",
3255                                                         io->io2.minimum, io->io2.maximum,
3256                                                         io->io2.address_length);
3257                                         spic_dev.cur_ioport = io;
3258                                         break;
3259                                 }
3260                                 else {
3261                                         dprintk("Unable to get I/O port2: "
3262                                                         "0x%.4x (0x%.4x) + 0x%.2x\n",
3263                                                         io->io2.minimum, io->io2.maximum,
3264                                                         io->io2.address_length);
3265                                         release_region(io->io1.minimum,
3266                                                         io->io1.address_length);
3267                                 }
3268                         }
3269                         else {
3270                                 spic_dev.cur_ioport = io;
3271                                 break;
3272                         }
3273                 }
3274         }
3275         if (!spic_dev.cur_ioport) {
3276                 pr_err("Failed to request_region\n");
3277                 result = -ENODEV;
3278                 goto err_remove_compat;
3279         }
3280
3281         /* request IRQ */
3282         list_for_each_entry_reverse(irq, &spic_dev.interrupts, list) {
3283                 if (!request_irq(irq->irq.interrupts[0], sony_pic_irq,
3284                                         0, "sony-laptop", &spic_dev)) {
3285                         dprintk("IRQ: %d - triggering: %d - "
3286                                         "polarity: %d - shr: %d\n",
3287                                         irq->irq.interrupts[0],
3288                                         irq->irq.triggering,
3289                                         irq->irq.polarity,
3290                                         irq->irq.sharable);
3291                         spic_dev.cur_irq = irq;
3292                         break;
3293                 }
3294         }
3295         if (!spic_dev.cur_irq) {
3296                 pr_err("Failed to request_irq\n");
3297                 result = -ENODEV;
3298                 goto err_release_region;
3299         }
3300
3301         /* set resource status _SRS */
3302         result = sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
3303         if (result) {
3304                 pr_err("Couldn't enable device\n");
3305                 goto err_free_irq;
3306         }
3307
3308         spic_dev.bluetooth_power = -1;
3309         /* create device attributes */
3310         result = sony_pf_add();
3311         if (result)
3312                 goto err_disable_device;
3313
3314         result = sysfs_create_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
3315         if (result)
3316                 goto err_remove_pf;
3317
3318         return 0;
3319
3320 err_remove_pf:
3321         sony_pf_remove();
3322
3323 err_disable_device:
3324         sony_pic_disable(device);
3325
3326 err_free_irq:
3327         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
3328
3329 err_release_region:
3330         release_region(spic_dev.cur_ioport->io1.minimum,
3331                         spic_dev.cur_ioport->io1.address_length);
3332         if (spic_dev.cur_ioport->io2.minimum)
3333                 release_region(spic_dev.cur_ioport->io2.minimum,
3334                                 spic_dev.cur_ioport->io2.address_length);
3335
3336 err_remove_compat:
3337         sonypi_compat_exit();
3338
3339 err_remove_input:
3340         sony_laptop_remove_input();
3341
3342 err_free_resources:
3343         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
3344                 list_del(&io->list);
3345                 kfree(io);
3346         }
3347         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
3348                 list_del(&irq->list);
3349                 kfree(irq);
3350         }
3351         spic_dev.cur_ioport = NULL;
3352         spic_dev.cur_irq = NULL;
3353
3354         return result;
3355 }
3356
3357 static int sony_pic_suspend(struct acpi_device *device, pm_message_t state)
3358 {
3359         if (sony_pic_disable(device))
3360                 return -ENXIO;
3361         return 0;
3362 }
3363
3364 static int sony_pic_resume(struct acpi_device *device)
3365 {
3366         sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
3367         return 0;
3368 }
3369
3370 static const struct acpi_device_id sony_pic_device_ids[] = {
3371         {SONY_PIC_HID, 0},
3372         {"", 0},
3373 };
3374
3375 static struct acpi_driver sony_pic_driver = {
3376         .name = SONY_PIC_DRIVER_NAME,
3377         .class = SONY_PIC_CLASS,
3378         .ids = sony_pic_device_ids,
3379         .owner = THIS_MODULE,
3380         .ops = {
3381                 .add = sony_pic_add,
3382                 .remove = sony_pic_remove,
3383                 .suspend = sony_pic_suspend,
3384                 .resume = sony_pic_resume,
3385                 },
3386 };
3387
3388 static struct dmi_system_id __initdata sonypi_dmi_table[] = {
3389         {
3390                 .ident = "Sony Vaio",
3391                 .matches = {
3392                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
3393                         DMI_MATCH(DMI_PRODUCT_NAME, "PCG-"),
3394                 },
3395         },
3396         {
3397                 .ident = "Sony Vaio",
3398                 .matches = {
3399                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
3400                         DMI_MATCH(DMI_PRODUCT_NAME, "VGN-"),
3401                 },
3402         },
3403         { }
3404 };
3405
3406 static int __init sony_laptop_init(void)
3407 {
3408         int result;
3409
3410         if (!no_spic && dmi_check_system(sonypi_dmi_table)) {
3411                 result = acpi_bus_register_driver(&sony_pic_driver);
3412                 if (result) {
3413                         pr_err("Unable to register SPIC driver\n");
3414                         goto out;
3415                 }
3416                 spic_drv_registered = 1;
3417         }
3418
3419         result = acpi_bus_register_driver(&sony_nc_driver);
3420         if (result) {
3421                 pr_err("Unable to register SNC driver\n");
3422                 goto out_unregister_pic;
3423         }
3424
3425         return 0;
3426
3427 out_unregister_pic:
3428         if (spic_drv_registered)
3429                 acpi_bus_unregister_driver(&sony_pic_driver);
3430 out:
3431         return result;
3432 }
3433
3434 static void __exit sony_laptop_exit(void)
3435 {
3436         acpi_bus_unregister_driver(&sony_nc_driver);
3437         if (spic_drv_registered)
3438                 acpi_bus_unregister_driver(&sony_pic_driver);
3439 }
3440
3441 module_init(sony_laptop_init);
3442 module_exit(sony_laptop_exit);