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 static int sony_nc_kbd_backlight_setup(struct platform_device *pd,
 145                 unsigned int handle);
 146 static void sony_nc_kbd_backlight_cleanup(struct platform_device *pd);
 147
 148 static int sony_nc_battery_care_setup(struct platform_device *pd,
 149                 unsigned int handle);
 150 static void sony_nc_battery_care_cleanup(struct platform_device *pd);
 151
 152 static int sony_nc_thermal_setup(struct platform_device *pd);
 153 static void sony_nc_thermal_cleanup(struct platform_device *pd);
 154 static void sony_nc_thermal_resume(void);
 155
 156 static int sony_nc_lid_resume_setup(struct platform_device *pd);
 157 static void sony_nc_lid_resume_cleanup(struct platform_device *pd);
 158
 159 static int sony_nc_highspeed_charging_setup(struct platform_device *pd);
 160 static void sony_nc_highspeed_charging_cleanup(struct platform_device *pd);
 161
 162 static int sony_nc_touchpad_setup(struct platform_device *pd,
 163                                   unsigned int handle);
 164 static void sony_nc_touchpad_cleanup(struct platform_device *pd);
 165
 166 enum sony_nc_rfkill {
 167         SONY_WIFI,
 168         SONY_BLUETOOTH,
 169         SONY_WWAN,
 170         SONY_WIMAX,
 171         N_SONY_RFKILL,
 172 };
 173
 174 static int sony_rfkill_handle;
 175 static struct rfkill *sony_rfkill_devices[N_SONY_RFKILL];
 176 static int sony_rfkill_address[N_SONY_RFKILL] = {0x300, 0x500, 0x700, 0x900};
 177 static int sony_nc_rfkill_setup(struct acpi_device *device,
 178                 unsigned int handle);
 179 static void sony_nc_rfkill_cleanup(void);
 180 static void sony_nc_rfkill_update(void);
 181
 182 /*********** Input Devices ***********/
 183
 184 #define SONY_LAPTOP_BUF_SIZE    128
 185 struct sony_laptop_input_s {
 186         atomic_t                users;
 187         struct input_dev        *jog_dev;
 188         struct input_dev        *key_dev;
 189         struct kfifo            fifo;
 190         spinlock_t              fifo_lock;
 191         struct timer_list       release_key_timer;
 192 };
 193
 194 static struct sony_laptop_input_s sony_laptop_input = {
 195         .users = ATOMIC_INIT(0),
 196 };
 197
 198 struct sony_laptop_keypress {
 199         struct input_dev *dev;
 200         int key;
 201 };
 202
 203 /* Correspondance table between sonypi events
 204  * and input layer indexes in the keymap
 205  */
 206 static int sony_laptop_input_index[] = {
 207         -1,     /*  0 no event */
 208         -1,     /*  1 SONYPI_EVENT_JOGDIAL_DOWN */
 209         -1,     /*  2 SONYPI_EVENT_JOGDIAL_UP */
 210         -1,     /*  3 SONYPI_EVENT_JOGDIAL_DOWN_PRESSED */
 211         -1,     /*  4 SONYPI_EVENT_JOGDIAL_UP_PRESSED */
 212         -1,     /*  5 SONYPI_EVENT_JOGDIAL_PRESSED */
 213         -1,     /*  6 SONYPI_EVENT_JOGDIAL_RELEASED */
 214          0,     /*  7 SONYPI_EVENT_CAPTURE_PRESSED */
 215          1,     /*  8 SONYPI_EVENT_CAPTURE_RELEASED */
 216          2,     /*  9 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
 217          3,     /* 10 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
 218          4,     /* 11 SONYPI_EVENT_FNKEY_ESC */
 219          5,     /* 12 SONYPI_EVENT_FNKEY_F1 */
 220          6,     /* 13 SONYPI_EVENT_FNKEY_F2 */
 221          7,     /* 14 SONYPI_EVENT_FNKEY_F3 */
 222          8,     /* 15 SONYPI_EVENT_FNKEY_F4 */
 223          9,     /* 16 SONYPI_EVENT_FNKEY_F5 */
 224         10,     /* 17 SONYPI_EVENT_FNKEY_F6 */
 225         11,     /* 18 SONYPI_EVENT_FNKEY_F7 */
 226         12,     /* 19 SONYPI_EVENT_FNKEY_F8 */
 227         13,     /* 20 SONYPI_EVENT_FNKEY_F9 */
 228         14,     /* 21 SONYPI_EVENT_FNKEY_F10 */
 229         15,     /* 22 SONYPI_EVENT_FNKEY_F11 */
 230         16,     /* 23 SONYPI_EVENT_FNKEY_F12 */
 231         17,     /* 24 SONYPI_EVENT_FNKEY_1 */
 232         18,     /* 25 SONYPI_EVENT_FNKEY_2 */
 233         19,     /* 26 SONYPI_EVENT_FNKEY_D */
 234         20,     /* 27 SONYPI_EVENT_FNKEY_E */
 235         21,     /* 28 SONYPI_EVENT_FNKEY_F */
 236         22,     /* 29 SONYPI_EVENT_FNKEY_S */
 237         23,     /* 30 SONYPI_EVENT_FNKEY_B */
 238         24,     /* 31 SONYPI_EVENT_BLUETOOTH_PRESSED */
 239         25,     /* 32 SONYPI_EVENT_PKEY_P1 */
 240         26,     /* 33 SONYPI_EVENT_PKEY_P2 */
 241         27,     /* 34 SONYPI_EVENT_PKEY_P3 */
 242         28,     /* 35 SONYPI_EVENT_BACK_PRESSED */
 243         -1,     /* 36 SONYPI_EVENT_LID_CLOSED */
 244         -1,     /* 37 SONYPI_EVENT_LID_OPENED */
 245         29,     /* 38 SONYPI_EVENT_BLUETOOTH_ON */
 246         30,     /* 39 SONYPI_EVENT_BLUETOOTH_OFF */
 247         31,     /* 40 SONYPI_EVENT_HELP_PRESSED */
 248         32,     /* 41 SONYPI_EVENT_FNKEY_ONLY */
 249         33,     /* 42 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
 250         34,     /* 43 SONYPI_EVENT_JOGDIAL_FAST_UP */
 251         35,     /* 44 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
 252         36,     /* 45 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
 253         37,     /* 46 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
 254         38,     /* 47 SONYPI_EVENT_JOGDIAL_VFAST_UP */
 255         39,     /* 48 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
 256         40,     /* 49 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
 257         41,     /* 50 SONYPI_EVENT_ZOOM_PRESSED */
 258         42,     /* 51 SONYPI_EVENT_THUMBPHRASE_PRESSED */
 259         43,     /* 52 SONYPI_EVENT_MEYE_FACE */
 260         44,     /* 53 SONYPI_EVENT_MEYE_OPPOSITE */
 261         45,     /* 54 SONYPI_EVENT_MEMORYSTICK_INSERT */
 262         46,     /* 55 SONYPI_EVENT_MEMORYSTICK_EJECT */
 263         -1,     /* 56 SONYPI_EVENT_ANYBUTTON_RELEASED */
 264         -1,     /* 57 SONYPI_EVENT_BATTERY_INSERT */
 265         -1,     /* 58 SONYPI_EVENT_BATTERY_REMOVE */
 266         -1,     /* 59 SONYPI_EVENT_FNKEY_RELEASED */
 267         47,     /* 60 SONYPI_EVENT_WIRELESS_ON */
 268         48,     /* 61 SONYPI_EVENT_WIRELESS_OFF */
 269         49,     /* 62 SONYPI_EVENT_ZOOM_IN_PRESSED */
 270         50,     /* 63 SONYPI_EVENT_ZOOM_OUT_PRESSED */
 271         51,     /* 64 SONYPI_EVENT_CD_EJECT_PRESSED */
 272         52,     /* 65 SONYPI_EVENT_MODEKEY_PRESSED */
 273         53,     /* 66 SONYPI_EVENT_PKEY_P4 */
 274         54,     /* 67 SONYPI_EVENT_PKEY_P5 */
 275         55,     /* 68 SONYPI_EVENT_SETTINGKEY_PRESSED */
 276         56,     /* 69 SONYPI_EVENT_VOLUME_INC_PRESSED */
 277         57,     /* 70 SONYPI_EVENT_VOLUME_DEC_PRESSED */
 278         -1,     /* 71 SONYPI_EVENT_BRIGHTNESS_PRESSED */
 279         58,     /* 72 SONYPI_EVENT_MEDIA_PRESSED */
 280         59,     /* 72 SONYPI_EVENT_VENDOR_PRESSED */
 281 };
 282
 283 static int sony_laptop_input_keycode_map[] = {
 284         KEY_CAMERA,     /*  0 SONYPI_EVENT_CAPTURE_PRESSED */
 285         KEY_RESERVED,   /*  1 SONYPI_EVENT_CAPTURE_RELEASED */
 286         KEY_RESERVED,   /*  2 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
 287         KEY_RESERVED,   /*  3 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
 288         KEY_FN_ESC,     /*  4 SONYPI_EVENT_FNKEY_ESC */
 289         KEY_FN_F1,      /*  5 SONYPI_EVENT_FNKEY_F1 */
 290         KEY_FN_F2,      /*  6 SONYPI_EVENT_FNKEY_F2 */
 291         KEY_FN_F3,      /*  7 SONYPI_EVENT_FNKEY_F3 */
 292         KEY_FN_F4,      /*  8 SONYPI_EVENT_FNKEY_F4 */
 293         KEY_FN_F5,      /*  9 SONYPI_EVENT_FNKEY_F5 */
 294         KEY_FN_F6,      /* 10 SONYPI_EVENT_FNKEY_F6 */
 295         KEY_FN_F7,      /* 11 SONYPI_EVENT_FNKEY_F7 */
 296         KEY_FN_F8,      /* 12 SONYPI_EVENT_FNKEY_F8 */
 297         KEY_FN_F9,      /* 13 SONYPI_EVENT_FNKEY_F9 */
 298         KEY_FN_F10,     /* 14 SONYPI_EVENT_FNKEY_F10 */
 299         KEY_FN_F11,     /* 15 SONYPI_EVENT_FNKEY_F11 */
 300         KEY_FN_F12,     /* 16 SONYPI_EVENT_FNKEY_F12 */
 301         KEY_FN_F1,      /* 17 SONYPI_EVENT_FNKEY_1 */
 302         KEY_FN_F2,      /* 18 SONYPI_EVENT_FNKEY_2 */
 303         KEY_FN_D,       /* 19 SONYPI_EVENT_FNKEY_D */
 304         KEY_FN_E,       /* 20 SONYPI_EVENT_FNKEY_E */
 305         KEY_FN_F,       /* 21 SONYPI_EVENT_FNKEY_F */
 306         KEY_FN_S,       /* 22 SONYPI_EVENT_FNKEY_S */
 307         KEY_FN_B,       /* 23 SONYPI_EVENT_FNKEY_B */
 308         KEY_BLUETOOTH,  /* 24 SONYPI_EVENT_BLUETOOTH_PRESSED */
 309         KEY_PROG1,      /* 25 SONYPI_EVENT_PKEY_P1 */
 310         KEY_PROG2,      /* 26 SONYPI_EVENT_PKEY_P2 */
 311         KEY_PROG3,      /* 27 SONYPI_EVENT_PKEY_P3 */
 312         KEY_BACK,       /* 28 SONYPI_EVENT_BACK_PRESSED */
 313         KEY_BLUETOOTH,  /* 29 SONYPI_EVENT_BLUETOOTH_ON */
 314         KEY_BLUETOOTH,  /* 30 SONYPI_EVENT_BLUETOOTH_OFF */
 315         KEY_HELP,       /* 31 SONYPI_EVENT_HELP_PRESSED */
 316         KEY_FN,         /* 32 SONYPI_EVENT_FNKEY_ONLY */
 317         KEY_RESERVED,   /* 33 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
 318         KEY_RESERVED,   /* 34 SONYPI_EVENT_JOGDIAL_FAST_UP */
 319         KEY_RESERVED,   /* 35 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
 320         KEY_RESERVED,   /* 36 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
 321         KEY_RESERVED,   /* 37 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
 322         KEY_RESERVED,   /* 38 SONYPI_EVENT_JOGDIAL_VFAST_UP */
 323         KEY_RESERVED,   /* 39 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
 324         KEY_RESERVED,   /* 40 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
 325         KEY_ZOOM,       /* 41 SONYPI_EVENT_ZOOM_PRESSED */
 326         BTN_THUMB,      /* 42 SONYPI_EVENT_THUMBPHRASE_PRESSED */
 327         KEY_RESERVED,   /* 43 SONYPI_EVENT_MEYE_FACE */
 328         KEY_RESERVED,   /* 44 SONYPI_EVENT_MEYE_OPPOSITE */
 329         KEY_RESERVED,   /* 45 SONYPI_EVENT_MEMORYSTICK_INSERT */
 330         KEY_RESERVED,   /* 46 SONYPI_EVENT_MEMORYSTICK_EJECT */
 331         KEY_WLAN,       /* 47 SONYPI_EVENT_WIRELESS_ON */
 332         KEY_WLAN,       /* 48 SONYPI_EVENT_WIRELESS_OFF */
 333         KEY_ZOOMIN,     /* 49 SONYPI_EVENT_ZOOM_IN_PRESSED */
 334         KEY_ZOOMOUT,    /* 50 SONYPI_EVENT_ZOOM_OUT_PRESSED */
 335         KEY_EJECTCD,    /* 51 SONYPI_EVENT_CD_EJECT_PRESSED */
 336         KEY_F13,        /* 52 SONYPI_EVENT_MODEKEY_PRESSED */
 337         KEY_PROG4,      /* 53 SONYPI_EVENT_PKEY_P4 */
 338         KEY_F14,        /* 54 SONYPI_EVENT_PKEY_P5 */
 339         KEY_F15,        /* 55 SONYPI_EVENT_SETTINGKEY_PRESSED */
 340         KEY_VOLUMEUP,   /* 56 SONYPI_EVENT_VOLUME_INC_PRESSED */
 341         KEY_VOLUMEDOWN, /* 57 SONYPI_EVENT_VOLUME_DEC_PRESSED */
 342         KEY_MEDIA,      /* 58 SONYPI_EVENT_MEDIA_PRESSED */
 343         KEY_VENDOR,     /* 59 SONYPI_EVENT_VENDOR_PRESSED */
 344 };
 345
 346 /* release buttons after a short delay if pressed */
 347 static void do_sony_laptop_release_key(unsigned long unused)
 348 {
 349         struct sony_laptop_keypress kp;
 350         unsigned long flags;
 351
 352         spin_lock_irqsave(&sony_laptop_input.fifo_lock, flags);
 353
 354         if (kfifo_out(&sony_laptop_input.fifo,
 355                       (unsigned char *)&kp, sizeof(kp)) == sizeof(kp)) {
 356                 input_report_key(kp.dev, kp.key, 0);
 357                 input_sync(kp.dev);
 358         }
 359
 360         /* If there is something in the fifo schedule next release. */
 361         if (kfifo_len(&sony_laptop_input.fifo) != 0)
 362                 mod_timer(&sony_laptop_input.release_key_timer,
 363                           jiffies + msecs_to_jiffies(10));
 364
 365         spin_unlock_irqrestore(&sony_laptop_input.fifo_lock, flags);
 366 }
 367
 368 /* forward event to the input subsystem */
 369 static void sony_laptop_report_input_event(u8 event)
 370 {
 371         struct input_dev *jog_dev = sony_laptop_input.jog_dev;
 372         struct input_dev *key_dev = sony_laptop_input.key_dev;
 373         struct sony_laptop_keypress kp = { NULL };
 374         int scancode = -1;
 375
 376         if (event == SONYPI_EVENT_FNKEY_RELEASED ||
 377                         event == SONYPI_EVENT_ANYBUTTON_RELEASED) {
 378                 /* Nothing, not all VAIOs generate this event */
 379                 return;
 380         }
 381
 382         /* report events */
 383         switch (event) {
 384         /* jog_dev events */
 385         case SONYPI_EVENT_JOGDIAL_UP:
 386         case SONYPI_EVENT_JOGDIAL_UP_PRESSED:
 387                 input_report_rel(jog_dev, REL_WHEEL, 1);
 388                 input_sync(jog_dev);
 389                 return;
 390
 391         case SONYPI_EVENT_JOGDIAL_DOWN:
 392         case SONYPI_EVENT_JOGDIAL_DOWN_PRESSED:
 393                 input_report_rel(jog_dev, REL_WHEEL, -1);
 394                 input_sync(jog_dev);
 395                 return;
 396
 397         /* key_dev events */
 398         case SONYPI_EVENT_JOGDIAL_PRESSED:
 399                 kp.key = BTN_MIDDLE;
 400                 kp.dev = jog_dev;
 401                 break;
 402
 403         default:
 404                 if (event >= ARRAY_SIZE(sony_laptop_input_index)) {
 405                         dprintk("sony_laptop_report_input_event, event not known: %d\n", event);
 406                         break;
 407                 }
 408                 if ((scancode = sony_laptop_input_index[event]) != -1) {
 409                         kp.key = sony_laptop_input_keycode_map[scancode];
 410                         if (kp.key != KEY_UNKNOWN)
 411                                 kp.dev = key_dev;
 412                 }
 413                 break;
 414         }
 415
 416         if (kp.dev) {
 417                 /* if we have a scancode we emit it so we can always
 418                     remap the key */
 419                 if (scancode != -1)
 420                         input_event(kp.dev, EV_MSC, MSC_SCAN, scancode);
 421                 input_report_key(kp.dev, kp.key, 1);
 422                 input_sync(kp.dev);
 423
 424                 /* schedule key release */
 425                 kfifo_in_locked(&sony_laptop_input.fifo,
 426                                 (unsigned char *)&kp, sizeof(kp),
 427                                 &sony_laptop_input.fifo_lock);
 428                 mod_timer(&sony_laptop_input.release_key_timer,
 429                           jiffies + msecs_to_jiffies(10));
 430         } else
 431                 dprintk("unknown input event %.2x\n", event);
 432 }
 433
 434 static int sony_laptop_setup_input(struct acpi_device *acpi_device)
 435 {
 436         struct input_dev *jog_dev;
 437         struct input_dev *key_dev;
 438         int i;
 439         int error;
 440
 441         /* don't run again if already initialized */
 442         if (atomic_add_return(1, &sony_laptop_input.users) > 1)
 443                 return 0;
 444
 445         /* kfifo */
 446         spin_lock_init(&sony_laptop_input.fifo_lock);
 447         error = kfifo_alloc(&sony_laptop_input.fifo,
 448                             SONY_LAPTOP_BUF_SIZE, GFP_KERNEL);
 449         if (error) {
 450                 pr_err("kfifo_alloc failed\n");
 451                 goto err_dec_users;
 452         }
 453
 454         setup_timer(&sony_laptop_input.release_key_timer,
 455                     do_sony_laptop_release_key, 0);
 456
 457         /* input keys */
 458         key_dev = input_allocate_device();
 459         if (!key_dev) {
 460                 error = -ENOMEM;
 461                 goto err_free_kfifo;
 462         }
 463
 464         key_dev->name = "Sony Vaio Keys";
 465         key_dev->id.bustype = BUS_ISA;
 466         key_dev->id.vendor = PCI_VENDOR_ID_SONY;
 467         key_dev->dev.parent = &acpi_device->dev;
 468
 469         /* Initialize the Input Drivers: special keys */
 470         input_set_capability(key_dev, EV_MSC, MSC_SCAN);
 471
 472         __set_bit(EV_KEY, key_dev->evbit);
 473         key_dev->keycodesize = sizeof(sony_laptop_input_keycode_map[0]);
 474         key_dev->keycodemax = ARRAY_SIZE(sony_laptop_input_keycode_map);
 475         key_dev->keycode = &sony_laptop_input_keycode_map;
 476         for (i = 0; i < ARRAY_SIZE(sony_laptop_input_keycode_map); i++)
 477                 __set_bit(sony_laptop_input_keycode_map[i], key_dev->keybit);
 478         __clear_bit(KEY_RESERVED, key_dev->keybit);
 479
 480         error = input_register_device(key_dev);
 481         if (error)
 482                 goto err_free_keydev;
 483
 484         sony_laptop_input.key_dev = key_dev;
 485
 486         /* jogdial */
 487         jog_dev = input_allocate_device();
 488         if (!jog_dev) {
 489                 error = -ENOMEM;
 490                 goto err_unregister_keydev;
 491         }
 492
 493         jog_dev->name = "Sony Vaio Jogdial";
 494         jog_dev->id.bustype = BUS_ISA;
 495         jog_dev->id.vendor = PCI_VENDOR_ID_SONY;
 496         jog_dev->dev.parent = &acpi_device->dev;
 497
 498         input_set_capability(jog_dev, EV_KEY, BTN_MIDDLE);
 499         input_set_capability(jog_dev, EV_REL, REL_WHEEL);
 500
 501         error = input_register_device(jog_dev);
 502         if (error)
 503                 goto err_free_jogdev;
 504
 505         sony_laptop_input.jog_dev = jog_dev;
 506
 507         return 0;
 508
 509 err_free_jogdev:
 510         input_free_device(jog_dev);
 511
 512 err_unregister_keydev:
 513         input_unregister_device(key_dev);
 514         /* to avoid kref underflow below at input_free_device */
 515         key_dev = NULL;
 516
 517 err_free_keydev:
 518         input_free_device(key_dev);
 519
 520 err_free_kfifo:
 521         kfifo_free(&sony_laptop_input.fifo);
 522
 523 err_dec_users:
 524         atomic_dec(&sony_laptop_input.users);
 525         return error;
 526 }
 527
 528 static void sony_laptop_remove_input(void)
 529 {
 530         struct sony_laptop_keypress kp = { NULL };
 531
 532         /* Cleanup only after the last user has gone */
 533         if (!atomic_dec_and_test(&sony_laptop_input.users))
 534                 return;
 535
 536         del_timer_sync(&sony_laptop_input.release_key_timer);
 537
 538         /*
 539          * Generate key-up events for remaining keys. Note that we don't
 540          * need locking since nobody is adding new events to the kfifo.
 541          */
 542         while (kfifo_out(&sony_laptop_input.fifo,
 543                          (unsigned char *)&kp, sizeof(kp)) == sizeof(kp)) {
 544                 input_report_key(kp.dev, kp.key, 0);
 545                 input_sync(kp.dev);
 546         }
 547
 548         /* destroy input devs */
 549         input_unregister_device(sony_laptop_input.key_dev);
 550         sony_laptop_input.key_dev = NULL;
 551
 552         if (sony_laptop_input.jog_dev) {
 553                 input_unregister_device(sony_laptop_input.jog_dev);
 554                 sony_laptop_input.jog_dev = NULL;
 555         }
 556
 557         kfifo_free(&sony_laptop_input.fifo);
 558 }
 559
 560 /*********** Platform Device ***********/
 561
 562 static atomic_t sony_pf_users = ATOMIC_INIT(0);
 563 static struct platform_driver sony_pf_driver = {
 564         .driver = {
 565                    .name = "sony-laptop",
 566                    .owner = THIS_MODULE,
 567                    }
 568 };
 569 static struct platform_device *sony_pf_device;
 570
 571 static int sony_pf_add(void)
 572 {
 573         int ret = 0;
 574
 575         /* don't run again if already initialized */
 576         if (atomic_add_return(1, &sony_pf_users) > 1)
 577                 return 0;
 578
 579         ret = platform_driver_register(&sony_pf_driver);
 580         if (ret)
 581                 goto out;
 582
 583         sony_pf_device = platform_device_alloc("sony-laptop", -1);
 584         if (!sony_pf_device) {
 585                 ret = -ENOMEM;
 586                 goto out_platform_registered;
 587         }
 588
 589         ret = platform_device_add(sony_pf_device);
 590         if (ret)
 591                 goto out_platform_alloced;
 592
 593         return 0;
 594
 595       out_platform_alloced:
 596         platform_device_put(sony_pf_device);
 597         sony_pf_device = NULL;
 598       out_platform_registered:
 599         platform_driver_unregister(&sony_pf_driver);
 600       out:
 601         atomic_dec(&sony_pf_users);
 602         return ret;
 603 }
 604
 605 static void sony_pf_remove(void)
 606 {
 607         /* deregister only after the last user has gone */
 608         if (!atomic_dec_and_test(&sony_pf_users))
 609                 return;
 610
 611         platform_device_unregister(sony_pf_device);
 612         platform_driver_unregister(&sony_pf_driver);
 613 }
 614
 615 /*********** SNC (SNY5001) Device ***********/
 616
 617 /* the device uses 1-based values, while the backlight subsystem uses
 618    0-based values */
 619 #define SONY_MAX_BRIGHTNESS     8
 620
 621 #define SNC_VALIDATE_IN         0
 622 #define SNC_VALIDATE_OUT        1
 623
 624 static ssize_t sony_nc_sysfs_show(struct device *, struct device_attribute *,
 625                               char *);
 626 static ssize_t sony_nc_sysfs_store(struct device *, struct device_attribute *,
 627                                const char *, size_t);
 628 static int boolean_validate(const int, const int);
 629 static int brightness_default_validate(const int, const int);
 630
 631 struct sony_nc_value {
 632         char *name;             /* name of the entry */
 633         char **acpiget;         /* names of the ACPI get function */
 634         char **acpiset;         /* names of the ACPI set function */
 635         int (*validate)(const int, const int);  /* input/output validation */
 636         int value;              /* current setting */
 637         int valid;              /* Has ever been set */
 638         int debug;              /* active only in debug mode ? */
 639         struct device_attribute devattr;        /* sysfs attribute */
 640 };
 641
 642 #define SNC_HANDLE_NAMES(_name, _values...) \
 643         static char *snc_##_name[] = { _values, NULL }
 644
 645 #define SNC_HANDLE(_name, _getters, _setters, _validate, _debug) \
 646         { \
 647                 .name           = __stringify(_name), \
 648                 .acpiget        = _getters, \
 649                 .acpiset        = _setters, \
 650                 .validate       = _validate, \
 651                 .debug          = _debug, \
 652                 .devattr        = __ATTR(_name, 0, sony_nc_sysfs_show, sony_nc_sysfs_store), \
 653         }
 654
 655 #define SNC_HANDLE_NULL { .name = NULL }
 656
 657 SNC_HANDLE_NAMES(fnkey_get, "GHKE");
 658
 659 SNC_HANDLE_NAMES(brightness_def_get, "GPBR");
 660 SNC_HANDLE_NAMES(brightness_def_set, "SPBR");
 661
 662 SNC_HANDLE_NAMES(cdpower_get, "GCDP");
 663 SNC_HANDLE_NAMES(cdpower_set, "SCDP", "CDPW");
 664
 665 SNC_HANDLE_NAMES(audiopower_get, "GAZP");
 666 SNC_HANDLE_NAMES(audiopower_set, "AZPW");
 667
 668 SNC_HANDLE_NAMES(lanpower_get, "GLNP");
 669 SNC_HANDLE_NAMES(lanpower_set, "LNPW");
 670
 671 SNC_HANDLE_NAMES(lidstate_get, "GLID");
 672
 673 SNC_HANDLE_NAMES(indicatorlamp_get, "GILS");
 674 SNC_HANDLE_NAMES(indicatorlamp_set, "SILS");
 675
 676 SNC_HANDLE_NAMES(gainbass_get, "GMGB");
 677 SNC_HANDLE_NAMES(gainbass_set, "CMGB");
 678
 679 SNC_HANDLE_NAMES(PID_get, "GPID");
 680
 681 SNC_HANDLE_NAMES(CTR_get, "GCTR");
 682 SNC_HANDLE_NAMES(CTR_set, "SCTR");
 683
 684 SNC_HANDLE_NAMES(PCR_get, "GPCR");
 685 SNC_HANDLE_NAMES(PCR_set, "SPCR");
 686
 687 SNC_HANDLE_NAMES(CMI_get, "GCMI");
 688 SNC_HANDLE_NAMES(CMI_set, "SCMI");
 689
 690 static struct sony_nc_value sony_nc_values[] = {
 691         SNC_HANDLE(brightness_default, snc_brightness_def_get,
 692                         snc_brightness_def_set, brightness_default_validate, 0),
 693         SNC_HANDLE(fnkey, snc_fnkey_get, NULL, NULL, 0),
 694         SNC_HANDLE(cdpower, snc_cdpower_get, snc_cdpower_set, boolean_validate, 0),
 695         SNC_HANDLE(audiopower, snc_audiopower_get, snc_audiopower_set,
 696                         boolean_validate, 0),
 697         SNC_HANDLE(lanpower, snc_lanpower_get, snc_lanpower_set,
 698                         boolean_validate, 1),
 699         SNC_HANDLE(lidstate, snc_lidstate_get, NULL,
 700                         boolean_validate, 0),
 701         SNC_HANDLE(indicatorlamp, snc_indicatorlamp_get, snc_indicatorlamp_set,
 702                         boolean_validate, 0),
 703         SNC_HANDLE(gainbass, snc_gainbass_get, snc_gainbass_set,
 704                         boolean_validate, 0),
 705         /* unknown methods */
 706         SNC_HANDLE(PID, snc_PID_get, NULL, NULL, 1),
 707         SNC_HANDLE(CTR, snc_CTR_get, snc_CTR_set, NULL, 1),
 708         SNC_HANDLE(PCR, snc_PCR_get, snc_PCR_set, NULL, 1),
 709         SNC_HANDLE(CMI, snc_CMI_get, snc_CMI_set, NULL, 1),
 710         SNC_HANDLE_NULL
 711 };
 712
 713 static acpi_handle sony_nc_acpi_handle;
 714 static struct acpi_device *sony_nc_acpi_device = NULL;
 715
 716 /*
 717  * acpi_evaluate_object wrappers
 718  * all useful calls into SNC methods take one or zero parameters and return
 719  * integers or arrays.
 720  */
 721 static union acpi_object *__call_snc_method(acpi_handle handle, char *method,
 722                 u64 *value)
 723 {
 724         union acpi_object *result = NULL;
 725         struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
 726         acpi_status status;
 727
 728         if (value) {
 729                 struct acpi_object_list params;
 730                 union acpi_object in;
 731                 in.type = ACPI_TYPE_INTEGER;
 732                 in.integer.value = *value;
 733                 params.count = 1;
 734                 params.pointer = &in;
 735                 status = acpi_evaluate_object(handle, method, &params, &output);
 736                 dprintk("__call_snc_method: [%s:0x%.8x%.8x]\n", method,
 737                                 (unsigned int)(*value >> 32),
 738                                 (unsigned int)*value & 0xffffffff);
 739         } else {
 740                 status = acpi_evaluate_object(handle, method, NULL, &output);
 741                 dprintk("__call_snc_method: [%s]\n", method);
 742         }
 743
 744         if (ACPI_FAILURE(status)) {
 745                 pr_err("Failed to evaluate [%s]\n", method);
 746                 return NULL;
 747         }
 748
 749         result = (union acpi_object *) output.pointer;
 750         if (!result)
 751                 dprintk("No return object [%s]\n", method);
 752
 753         return result;
 754 }
 755
 756 static int sony_nc_int_call(acpi_handle handle, char *name, int *value,
 757                 int *result)
 758 {
 759         union acpi_object *object = NULL;
 760         if (value) {
 761                 u64 v = *value;
 762                 object = __call_snc_method(handle, name, &v);
 763         } else
 764                 object = __call_snc_method(handle, name, NULL);
 765
 766         if (!object)
 767                 return -EINVAL;
 768
 769         if (object->type != ACPI_TYPE_INTEGER) {
 770                 pr_warn("Invalid acpi_object: expected 0x%x got 0x%x\n",
 771                                 ACPI_TYPE_INTEGER, object->type);
 772                 kfree(object);
 773                 return -EINVAL;
 774         }
 775
 776         if (result)
 777                 *result = object->integer.value;
 778
 779         kfree(object);
 780         return 0;
 781 }
 782
 783 #define MIN(a, b)       (a > b ? b : a)
 784 static int sony_nc_buffer_call(acpi_handle handle, char *name, u64 *value,
 785                 void *buffer, size_t buflen)
 786 {
 787         size_t len = len;
 788         union acpi_object *object = __call_snc_method(handle, name, value);
 789
 790         if (!object)
 791                 return -EINVAL;
 792
 793         if (object->type == ACPI_TYPE_BUFFER)
 794                 len = MIN(buflen, object->buffer.length);
 795
 796         else if (object->type == ACPI_TYPE_INTEGER)
 797                 len = MIN(buflen, sizeof(object->integer.value));
 798
 799         else {
 800                 pr_warn("Invalid acpi_object: expected 0x%x got 0x%x\n",
 801                                 ACPI_TYPE_BUFFER, object->type);
 802                 kfree(object);
 803                 return -EINVAL;
 804         }
 805
 806         memcpy(buffer, object->buffer.pointer, len);
 807         kfree(object);
 808         return 0;
 809 }
 810
 811 struct sony_nc_handles {
 812         u16 cap[0x10];
 813         struct device_attribute devattr;
 814 };
 815
 816 static struct sony_nc_handles *handles;
 817
 818 static ssize_t sony_nc_handles_show(struct device *dev,
 819                 struct device_attribute *attr, char *buffer)
 820 {
 821         ssize_t len = 0;
 822         int i;
 823
 824         for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
 825                 len += snprintf(buffer + len, PAGE_SIZE - len, "0x%.4x ",
 826                                 handles->cap[i]);
 827         }
 828         len += snprintf(buffer + len, PAGE_SIZE - len, "\n");
 829
 830         return len;
 831 }
 832
 833 static int sony_nc_handles_setup(struct platform_device *pd)
 834 {
 835         int i, r, result, arg;
 836
 837         handles = kzalloc(sizeof(*handles), GFP_KERNEL);
 838         if (!handles)
 839                 return -ENOMEM;
 840
 841         for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
 842                 arg = i + 0x20;
 843                 r = sony_nc_int_call(sony_nc_acpi_handle, "SN00", &arg,
 844                                         &result);
 845                 if (!r) {
 846                         dprintk("caching handle 0x%.4x (offset: 0x%.2x)\n",
 847                                         result, i);
 848                         handles->cap[i] = result;
 849                 }
 850         }
 851
 852         if (debug) {
 853                 sysfs_attr_init(&handles->devattr.attr);
 854                 handles->devattr.attr.name = "handles";
 855                 handles->devattr.attr.mode = S_IRUGO;
 856                 handles->devattr.show = sony_nc_handles_show;
 857
 858                 /* allow reading capabilities via sysfs */
 859                 if (device_create_file(&pd->dev, &handles->devattr)) {
 860                         kfree(handles);
 861                         handles = NULL;
 862                         return -1;
 863                 }
 864         }
 865
 866         return 0;
 867 }
 868
 869 static int sony_nc_handles_cleanup(struct platform_device *pd)
 870 {
 871         if (handles) {
 872                 if (debug)
 873                         device_remove_file(&pd->dev, &handles->devattr);
 874                 kfree(handles);
 875                 handles = NULL;
 876         }
 877         return 0;
 878 }
 879
 880 static int sony_find_snc_handle(int handle)
 881 {
 882         int i;
 883
 884         /* not initialized yet, return early */
 885         if (!handles || !handle)
 886                 return -EINVAL;
 887
 888         for (i = 0; i < 0x10; i++) {
 889                 if (handles->cap[i] == handle) {
 890                         dprintk("found handle 0x%.4x (offset: 0x%.2x)\n",
 891                                         handle, i);
 892                         return i;
 893                 }
 894         }
 895         dprintk("handle 0x%.4x not found\n", handle);
 896         return -EINVAL;
 897 }
 898
 899 static int sony_call_snc_handle(int handle, int argument, int *result)
 900 {
 901         int arg, ret = 0;
 902         int offset = sony_find_snc_handle(handle);
 903
 904         if (offset < 0)
 905                 return offset;
 906
 907         arg = offset | argument;
 908         ret = sony_nc_int_call(sony_nc_acpi_handle, "SN07", &arg, result);
 909         dprintk("called SN07 with 0x%.4x (result: 0x%.4x)\n", arg, *result);
 910         return ret;
 911 }
 912
 913 /*
 914  * sony_nc_values input/output validate functions
 915  */
 916
 917 /* brightness_default_validate:
 918  *
 919  * manipulate input output values to keep consistency with the
 920  * backlight framework for which brightness values are 0-based.
 921  */
 922 static int brightness_default_validate(const int direction, const int value)
 923 {
 924         switch (direction) {
 925                 case SNC_VALIDATE_OUT:
 926                         return value - 1;
 927                 case SNC_VALIDATE_IN:
 928                         if (value >= 0 && value < SONY_MAX_BRIGHTNESS)
 929                                 return value + 1;
 930         }
 931         return -EINVAL;
 932 }
 933
 934 /* boolean_validate:
 935  *
 936  * on input validate boolean values 0/1, on output just pass the
 937  * received value.
 938  */
 939 static int boolean_validate(const int direction, const int value)
 940 {
 941         if (direction == SNC_VALIDATE_IN) {
 942                 if (value != 0 && value != 1)
 943                         return -EINVAL;
 944         }
 945         return value;
 946 }
 947
 948 /*
 949  * Sysfs show/store common to all sony_nc_values
 950  */
 951 static ssize_t sony_nc_sysfs_show(struct device *dev, struct device_attribute *attr,
 952                               char *buffer)
 953 {
 954         int value, ret = 0;
 955         struct sony_nc_value *item =
 956             container_of(attr, struct sony_nc_value, devattr);
 957
 958         if (!*item->acpiget)
 959                 return -EIO;
 960
 961         ret = sony_nc_int_call(sony_nc_acpi_handle, *item->acpiget, NULL,
 962                                 &value);
 963         if (ret < 0)
 964                 return -EIO;
 965
 966         if (item->validate)
 967                 value = item->validate(SNC_VALIDATE_OUT, value);
 968
 969         return snprintf(buffer, PAGE_SIZE, "%d\n", value);
 970 }
 971
 972 static ssize_t sony_nc_sysfs_store(struct device *dev,
 973                                struct device_attribute *attr,
 974                                const char *buffer, size_t count)
 975 {
 976         unsigned long value = 0;
 977         int ret = 0;
 978         struct sony_nc_value *item =
 979             container_of(attr, struct sony_nc_value, devattr);
 980
 981         if (!item->acpiset)
 982                 return -EIO;
 983
 984         if (count > 31)
 985                 return -EINVAL;
 986
 987         if (kstrtoul(buffer, 10, &value))
 988                 return -EINVAL;
 989
 990         if (item->validate)
 991                 value = item->validate(SNC_VALIDATE_IN, value);
 992
 993         if (value < 0)
 994                 return value;
 995
 996         ret = sony_nc_int_call(sony_nc_acpi_handle, *item->acpiset,
 997                         (int *)&value, NULL);
 998         if (ret < 0)
 999                 return -EIO;
1000
1001         item->value = value;
1002         item->valid = 1;
1003         return count;
1004 }
1005
1006
1007 /*
1008  * Backlight device
1009  */
1010 struct sony_backlight_props {
1011         struct backlight_device *dev;
1012         int                     handle;
1013         u8                      offset;
1014         u8                      maxlvl;
1015 };
1016 struct sony_backlight_props sony_bl_props;
1017
1018 static int sony_backlight_update_status(struct backlight_device *bd)
1019 {
1020         int arg = bd->props.brightness + 1;
1021         return sony_nc_int_call(sony_nc_acpi_handle, "SBRT", &arg, NULL);
1022 }
1023
1024 static int sony_backlight_get_brightness(struct backlight_device *bd)
1025 {
1026         int value;
1027
1028         if (sony_nc_int_call(sony_nc_acpi_handle, "GBRT", NULL, &value))
1029                 return 0;
1030         /* brightness levels are 1-based, while backlight ones are 0-based */
1031         return value - 1;
1032 }
1033
1034 static int sony_nc_get_brightness_ng(struct backlight_device *bd)
1035 {
1036         int result;
1037         struct sony_backlight_props *sdev =
1038                 (struct sony_backlight_props *)bl_get_data(bd);
1039
1040         sony_call_snc_handle(sdev->handle, 0x0200, &result);
1041
1042         return (result & 0xff) - sdev->offset;
1043 }
1044
1045 static int sony_nc_update_status_ng(struct backlight_device *bd)
1046 {
1047         int value, result;
1048         struct sony_backlight_props *sdev =
1049                 (struct sony_backlight_props *)bl_get_data(bd);
1050
1051         value = bd->props.brightness + sdev->offset;
1052         if (sony_call_snc_handle(sdev->handle, 0x0100 | (value << 16), &result))
1053                 return -EIO;
1054
1055         return value;
1056 }
1057
1058 static const struct backlight_ops sony_backlight_ops = {
1059         .options = BL_CORE_SUSPENDRESUME,
1060         .update_status = sony_backlight_update_status,
1061         .get_brightness = sony_backlight_get_brightness,
1062 };
1063 static const struct backlight_ops sony_backlight_ng_ops = {
1064         .options = BL_CORE_SUSPENDRESUME,
1065         .update_status = sony_nc_update_status_ng,
1066         .get_brightness = sony_nc_get_brightness_ng,
1067 };
1068
1069 /*
1070  * New SNC-only Vaios event mapping to driver known keys
1071  */
1072 struct sony_nc_event {
1073         u8      data;
1074         u8      event;
1075 };
1076
1077 static struct sony_nc_event sony_100_events[] = {
1078         { 0x90, SONYPI_EVENT_PKEY_P1 },
1079         { 0x10, SONYPI_EVENT_ANYBUTTON_RELEASED },
1080         { 0x91, SONYPI_EVENT_PKEY_P2 },
1081         { 0x11, SONYPI_EVENT_ANYBUTTON_RELEASED },
1082         { 0x81, SONYPI_EVENT_FNKEY_F1 },
1083         { 0x01, SONYPI_EVENT_FNKEY_RELEASED },
1084         { 0x82, SONYPI_EVENT_FNKEY_F2 },
1085         { 0x02, SONYPI_EVENT_FNKEY_RELEASED },
1086         { 0x83, SONYPI_EVENT_FNKEY_F3 },
1087         { 0x03, SONYPI_EVENT_FNKEY_RELEASED },
1088         { 0x84, SONYPI_EVENT_FNKEY_F4 },
1089         { 0x04, SONYPI_EVENT_FNKEY_RELEASED },
1090         { 0x85, SONYPI_EVENT_FNKEY_F5 },
1091         { 0x05, SONYPI_EVENT_FNKEY_RELEASED },
1092         { 0x86, SONYPI_EVENT_FNKEY_F6 },
1093         { 0x06, SONYPI_EVENT_FNKEY_RELEASED },
1094         { 0x87, SONYPI_EVENT_FNKEY_F7 },
1095         { 0x07, SONYPI_EVENT_FNKEY_RELEASED },
1096         { 0x88, SONYPI_EVENT_FNKEY_F8 },
1097         { 0x08, SONYPI_EVENT_FNKEY_RELEASED },
1098         { 0x89, SONYPI_EVENT_FNKEY_F9 },
1099         { 0x09, SONYPI_EVENT_FNKEY_RELEASED },
1100         { 0x8A, SONYPI_EVENT_FNKEY_F10 },
1101         { 0x0A, SONYPI_EVENT_FNKEY_RELEASED },
1102         { 0x8B, SONYPI_EVENT_FNKEY_F11 },
1103         { 0x0B, SONYPI_EVENT_FNKEY_RELEASED },
1104         { 0x8C, SONYPI_EVENT_FNKEY_F12 },
1105         { 0x0C, SONYPI_EVENT_FNKEY_RELEASED },
1106         { 0x9d, SONYPI_EVENT_ZOOM_PRESSED },
1107         { 0x1d, SONYPI_EVENT_ANYBUTTON_RELEASED },
1108         { 0x9f, SONYPI_EVENT_CD_EJECT_PRESSED },
1109         { 0x1f, SONYPI_EVENT_ANYBUTTON_RELEASED },
1110         { 0xa1, SONYPI_EVENT_MEDIA_PRESSED },
1111         { 0x21, SONYPI_EVENT_ANYBUTTON_RELEASED },
1112         { 0xa4, SONYPI_EVENT_CD_EJECT_PRESSED },
1113         { 0x24, SONYPI_EVENT_ANYBUTTON_RELEASED },
1114         { 0xa5, SONYPI_EVENT_VENDOR_PRESSED },
1115         { 0x25, SONYPI_EVENT_ANYBUTTON_RELEASED },
1116         { 0xa6, SONYPI_EVENT_HELP_PRESSED },
1117         { 0x26, SONYPI_EVENT_ANYBUTTON_RELEASED },
1118         { 0, 0 },
1119 };
1120
1121 static struct sony_nc_event sony_127_events[] = {
1122         { 0x81, SONYPI_EVENT_MODEKEY_PRESSED },
1123         { 0x01, SONYPI_EVENT_ANYBUTTON_RELEASED },
1124         { 0x82, SONYPI_EVENT_PKEY_P1 },
1125         { 0x02, SONYPI_EVENT_ANYBUTTON_RELEASED },
1126         { 0x83, SONYPI_EVENT_PKEY_P2 },
1127         { 0x03, SONYPI_EVENT_ANYBUTTON_RELEASED },
1128         { 0x84, SONYPI_EVENT_PKEY_P3 },
1129         { 0x04, SONYPI_EVENT_ANYBUTTON_RELEASED },
1130         { 0x85, SONYPI_EVENT_PKEY_P4 },
1131         { 0x05, SONYPI_EVENT_ANYBUTTON_RELEASED },
1132         { 0x86, SONYPI_EVENT_PKEY_P5 },
1133         { 0x06, SONYPI_EVENT_ANYBUTTON_RELEASED },
1134         { 0x87, SONYPI_EVENT_SETTINGKEY_PRESSED },
1135         { 0x07, SONYPI_EVENT_ANYBUTTON_RELEASED },
1136         { 0, 0 },
1137 };
1138
1139 static int sony_nc_hotkeys_decode(u32 event, unsigned int handle)
1140 {
1141         int ret = -EINVAL;
1142         unsigned int result = 0;
1143         struct sony_nc_event *key_event;
1144
1145         if (sony_call_snc_handle(handle, 0x200, &result)) {
1146                 dprintk("Unable to decode event 0x%.2x 0x%.2x\n", handle,
1147                                 event);
1148                 return -EINVAL;
1149         }
1150
1151         result &= 0xFF;
1152
1153         if (handle == 0x0100)
1154                 key_event = sony_100_events;
1155         else
1156                 key_event = sony_127_events;
1157
1158         for (; key_event->data; key_event++) {
1159                 if (key_event->data == result) {
1160                         ret = key_event->event;
1161                         break;
1162                 }
1163         }
1164
1165         if (!key_event->data)
1166                 pr_info("Unknown hotkey 0x%.2x/0x%.2x (handle 0x%.2x)\n",
1167                                 event, result, handle);
1168
1169         return ret;
1170 }
1171
1172 /*
1173  * ACPI callbacks
1174  */
1175 static void sony_nc_notify(struct acpi_device *device, u32 event)
1176 {
1177         u32 real_ev = event;
1178         u8 ev_type = 0;
1179         dprintk("sony_nc_notify, event: 0x%.2x\n", event);
1180
1181         if (event >= 0x90) {
1182                 unsigned int result = 0;
1183                 unsigned int arg = 0;
1184                 unsigned int handle = 0;
1185                 unsigned int offset = event - 0x90;
1186
1187                 if (offset >= ARRAY_SIZE(handles->cap)) {
1188                         pr_err("Event 0x%x outside of capabilities list\n",
1189                                         event);
1190                         return;
1191                 }
1192                 handle = handles->cap[offset];
1193
1194                 /* list of handles known for generating events */
1195                 switch (handle) {
1196                 /* hotkey event */
1197                 case 0x0100:
1198                 case 0x0127:
1199                         ev_type = 1;
1200                         real_ev = sony_nc_hotkeys_decode(event, handle);
1201
1202                         if (real_ev > 0)
1203                                 sony_laptop_report_input_event(real_ev);
1204                         else
1205                                 /* restore the original event for reporting */
1206                                 real_ev = event;
1207
1208                         break;
1209
1210                 /* wlan switch */
1211                 case 0x0124:
1212                 case 0x0135:
1213                         /* events on this handle are reported when the
1214                          * switch changes position or for battery
1215                          * events. We'll notify both of them but only
1216                          * update the rfkill device status when the
1217                          * switch is moved.
1218                          */
1219                         ev_type = 2;
1220                         sony_call_snc_handle(handle, 0x0100, &result);
1221                         real_ev = result & 0x03;
1222
1223                         /* hw switch event */
1224                         if (real_ev == 1)
1225                                 sony_nc_rfkill_update();
1226
1227                         break;
1228
1229                 default:
1230                         dprintk("Unknown event 0x%x for handle 0x%x\n",
1231                                         event, handle);
1232                         break;
1233                 }
1234
1235                 /* clear the event (and the event reason when present) */
1236                 arg = 1 << offset;
1237                 sony_nc_int_call(sony_nc_acpi_handle, "SN05", &arg, &result);
1238
1239         } else {
1240                 /* old style event */
1241                 ev_type = 1;
1242                 sony_laptop_report_input_event(real_ev);
1243         }
1244
1245         acpi_bus_generate_proc_event(sony_nc_acpi_device, ev_type, real_ev);
1246
1247         acpi_bus_generate_netlink_event(sony_nc_acpi_device->pnp.device_class,
1248                         dev_name(&sony_nc_acpi_device->dev), ev_type, real_ev);
1249 }
1250
1251 static acpi_status sony_walk_callback(acpi_handle handle, u32 level,
1252                                       void *context, void **return_value)
1253 {
1254         struct acpi_device_info *info;
1255
1256         if (ACPI_SUCCESS(acpi_get_object_info(handle, &info))) {
1257                 pr_warn("method: name: %4.4s, args %X\n",
1258                         (char *)&info->name, info->param_count);
1259
1260                 kfree(info);
1261         }
1262
1263         return AE_OK;
1264 }
1265
1266 /*
1267  * ACPI device
1268  */
1269 static void sony_nc_function_setup(struct acpi_device *device,
1270                 struct platform_device *pf_device)
1271 {
1272         unsigned int i, result, bitmask, arg;
1273
1274         if (!handles)
1275                 return;
1276
1277         /* setup found handles here */
1278         for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
1279                 unsigned int handle = handles->cap[i];
1280
1281                 if (!handle)
1282                         continue;
1283
1284                 dprintk("setting up handle 0x%.4x\n", handle);
1285
1286                 switch (handle) {
1287                 case 0x0100:
1288                 case 0x0101:
1289                 case 0x0127:
1290                         /* setup hotkeys */
1291                         sony_call_snc_handle(handle, 0, &result);
1292                         break;
1293                 case 0x0102:
1294                         /* setup hotkeys */
1295                         sony_call_snc_handle(handle, 0x100, &result);
1296                         break;
1297                 case 0x0105:
1298                 case 0x0148:
1299                         /* touchpad enable/disable */
1300                         result = sony_nc_touchpad_setup(pf_device, handle);
1301                         if (result)
1302                                 pr_err("couldn't set up touchpad control function (%d)\n",
1303                                                 result);
1304                         break;
1305                 case 0x0115:
1306                 case 0x0136:
1307                 case 0x013f:
1308                         result = sony_nc_battery_care_setup(pf_device, handle);
1309                         if (result)
1310                                 pr_err("couldn't set up battery care function (%d)\n",
1311                                                 result);
1312                         break;
1313                 case 0x0119:
1314                         result = sony_nc_lid_resume_setup(pf_device);
1315                         if (result)
1316                                 pr_err("couldn't set up lid resume function (%d)\n",
1317                                                 result);
1318                         break;
1319                 case 0x0122:
1320                         result = sony_nc_thermal_setup(pf_device);
1321                         if (result)
1322                                 pr_err("couldn't set up thermal profile function (%d)\n",
1323                                                 result);
1324                         break;
1325                 case 0x0131:
1326                         result = sony_nc_highspeed_charging_setup(pf_device);
1327                         if (result)
1328                                 pr_err("couldn't set up high speed charging function (%d)\n",
1329                                        result);
1330                         break;
1331                 case 0x0124:
1332                 case 0x0135:
1333                         result = sony_nc_rfkill_setup(device, handle);
1334                         if (result)
1335                                 pr_err("couldn't set up rfkill support (%d)\n",
1336                                                 result);
1337                         break;
1338                 case 0x0137:
1339                 case 0x0143:
1340                         result = sony_nc_kbd_backlight_setup(pf_device, handle);
1341                         if (result)
1342                                 pr_err("couldn't set up keyboard backlight function (%d)\n",
1343                                                 result);
1344                         break;
1345                 default:
1346                         continue;
1347                 }
1348         }
1349
1350         /* Enable all events */
1351         arg = 0x10;
1352         if (!sony_nc_int_call(sony_nc_acpi_handle, "SN00", &arg, &bitmask))
1353                 sony_nc_int_call(sony_nc_acpi_handle, "SN02", &bitmask,
1354                                 &result);
1355 }
1356
1357 static void sony_nc_function_cleanup(struct platform_device *pd)
1358 {
1359         unsigned int i, result, bitmask, handle;
1360
1361         /* get enabled events and disable them */
1362         sony_nc_int_call(sony_nc_acpi_handle, "SN01", NULL, &bitmask);
1363         sony_nc_int_call(sony_nc_acpi_handle, "SN03", &bitmask, &result);
1364
1365         /* cleanup handles here */
1366         for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
1367
1368                 handle = handles->cap[i];
1369
1370                 if (!handle)
1371                         continue;
1372
1373                 switch (handle) {
1374                 case 0x0105:
1375                 case 0x0148:
1376                         sony_nc_touchpad_cleanup(pd);
1377                         break;
1378                 case 0x0115:
1379                 case 0x0136:
1380                 case 0x013f:
1381                         sony_nc_battery_care_cleanup(pd);
1382                         break;
1383                 case 0x0119:
1384                         sony_nc_lid_resume_cleanup(pd);
1385                         break;
1386                 case 0x0122:
1387                         sony_nc_thermal_cleanup(pd);
1388                         break;
1389                 case 0x0131:
1390                         sony_nc_highspeed_charging_cleanup(pd);
1391                         break;
1392                 case 0x0124:
1393                 case 0x0135:
1394                         sony_nc_rfkill_cleanup();
1395                         break;
1396                 case 0x0137:
1397                 case 0x0143:
1398                         sony_nc_kbd_backlight_cleanup(pd);
1399                         break;
1400                 default:
1401                         continue;
1402                 }
1403         }
1404
1405         /* finally cleanup the handles list */
1406         sony_nc_handles_cleanup(pd);
1407 }
1408
1409 static void sony_nc_function_resume(void)
1410 {
1411         unsigned int i, result, bitmask, arg;
1412
1413         dprintk("Resuming SNC device\n");
1414
1415         for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
1416                 unsigned int handle = handles->cap[i];
1417
1418                 if (!handle)
1419                         continue;
1420
1421                 switch (handle) {
1422                 case 0x0100:
1423                 case 0x0101:
1424                 case 0x0127:
1425                         /* re-enable hotkeys */
1426                         sony_call_snc_handle(handle, 0, &result);
1427                         break;
1428                 case 0x0102:
1429                         /* re-enable hotkeys */
1430                         sony_call_snc_handle(handle, 0x100, &result);
1431                         break;
1432                 case 0x0122:
1433                         sony_nc_thermal_resume();
1434                         break;
1435                 case 0x0124:
1436                 case 0x0135:
1437                         sony_nc_rfkill_update();
1438                         break;
1439                 case 0x0137:
1440                 case 0x0143:
1441                         sony_nc_kbd_backlight_resume();
1442                         break;
1443                 default:
1444                         continue;
1445                 }
1446         }
1447
1448         /* Enable all events */
1449         arg = 0x10;
1450         if (!sony_nc_int_call(sony_nc_acpi_handle, "SN00", &arg, &bitmask))
1451                 sony_nc_int_call(sony_nc_acpi_handle, "SN02", &bitmask,
1452                                 &result);
1453 }
1454
1455 static int sony_nc_resume(struct acpi_device *device)
1456 {
1457         struct sony_nc_value *item;
1458         acpi_handle handle;
1459
1460         for (item = sony_nc_values; item->name; item++) {
1461                 int ret;
1462
1463                 if (!item->valid)
1464                         continue;
1465                 ret = sony_nc_int_call(sony_nc_acpi_handle, *item->acpiset,
1466                                        &item->value, NULL);
1467                 if (ret < 0) {
1468                         pr_err("%s: %d\n", __func__, ret);
1469                         break;
1470                 }
1471         }
1472
1473         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "ECON",
1474                                          &handle))) {
1475                 int arg = 1;
1476                 if (sony_nc_int_call(sony_nc_acpi_handle, "ECON", &arg, NULL))
1477                         dprintk("ECON Method failed\n");
1478         }
1479
1480         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "SN00",
1481                                          &handle)))
1482                 sony_nc_function_resume();
1483
1484         return 0;
1485 }
1486
1487 static void sony_nc_rfkill_cleanup(void)
1488 {
1489         int i;
1490
1491         for (i = 0; i < N_SONY_RFKILL; i++) {
1492                 if (sony_rfkill_devices[i]) {
1493                         rfkill_unregister(sony_rfkill_devices[i]);
1494                         rfkill_destroy(sony_rfkill_devices[i]);
1495                 }
1496         }
1497 }
1498
1499 static int sony_nc_rfkill_set(void *data, bool blocked)
1500 {
1501         int result;
1502         int argument = sony_rfkill_address[(long) data] + 0x100;
1503
1504         if (!blocked)
1505                 argument |= 0x030000;
1506
1507         return sony_call_snc_handle(sony_rfkill_handle, argument, &result);
1508 }
1509
1510 static const struct rfkill_ops sony_rfkill_ops = {
1511         .set_block = sony_nc_rfkill_set,
1512 };
1513
1514 static int sony_nc_setup_rfkill(struct acpi_device *device,
1515                                 enum sony_nc_rfkill nc_type)
1516 {
1517         int err = 0;
1518         struct rfkill *rfk;
1519         enum rfkill_type type;
1520         const char *name;
1521         int result;
1522         bool hwblock, swblock;
1523
1524         switch (nc_type) {
1525         case SONY_WIFI:
1526                 type = RFKILL_TYPE_WLAN;
1527                 name = "sony-wifi";
1528                 break;
1529         case SONY_BLUETOOTH:
1530                 type = RFKILL_TYPE_BLUETOOTH;
1531                 name = "sony-bluetooth";
1532                 break;
1533         case SONY_WWAN:
1534                 type = RFKILL_TYPE_WWAN;
1535                 name = "sony-wwan";
1536                 break;
1537         case SONY_WIMAX:
1538                 type = RFKILL_TYPE_WIMAX;
1539                 name = "sony-wimax";
1540                 break;
1541         default:
1542                 return -EINVAL;
1543         }
1544
1545         rfk = rfkill_alloc(name, &device->dev, type,
1546                            &sony_rfkill_ops, (void *)nc_type);
1547         if (!rfk)
1548                 return -ENOMEM;
1549
1550         if (sony_call_snc_handle(sony_rfkill_handle, 0x200, &result) < 0) {
1551                 rfkill_destroy(rfk);
1552                 return -1;
1553         }
1554         hwblock = !(result & 0x1);
1555
1556         if (sony_call_snc_handle(sony_rfkill_handle,
1557                                 sony_rfkill_address[nc_type],
1558                                 &result) < 0) {
1559                 rfkill_destroy(rfk);
1560                 return -1;
1561         }
1562         swblock = !(result & 0x2);
1563
1564         rfkill_init_sw_state(rfk, swblock);
1565         rfkill_set_hw_state(rfk, hwblock);
1566
1567         err = rfkill_register(rfk);
1568         if (err) {
1569                 rfkill_destroy(rfk);
1570                 return err;
1571         }
1572         sony_rfkill_devices[nc_type] = rfk;
1573         return err;
1574 }
1575
1576 static void sony_nc_rfkill_update(void)
1577 {
1578         enum sony_nc_rfkill i;
1579         int result;
1580         bool hwblock;
1581
1582         sony_call_snc_handle(sony_rfkill_handle, 0x200, &result);
1583         hwblock = !(result & 0x1);
1584
1585         for (i = 0; i < N_SONY_RFKILL; i++) {
1586                 int argument = sony_rfkill_address[i];
1587
1588                 if (!sony_rfkill_devices[i])
1589                         continue;
1590
1591                 if (hwblock) {
1592                         if (rfkill_set_hw_state(sony_rfkill_devices[i], true)) {
1593                                 /* we already know we're blocked */
1594                         }
1595                         continue;
1596                 }
1597
1598                 sony_call_snc_handle(sony_rfkill_handle, argument, &result);
1599                 rfkill_set_states(sony_rfkill_devices[i],
1600                                   !(result & 0x2), false);
1601         }
1602 }
1603
1604 static int sony_nc_rfkill_setup(struct acpi_device *device,
1605                 unsigned int handle)
1606 {
1607         u64 offset;
1608         int i;
1609         unsigned char buffer[32] = { 0 };
1610
1611         offset = sony_find_snc_handle(handle);
1612         sony_rfkill_handle = handle;
1613
1614         i = sony_nc_buffer_call(sony_nc_acpi_handle, "SN06", &offset, buffer,
1615                         32);
1616         if (i < 0)
1617                 return i;
1618
1619         /* The buffer is filled with magic numbers describing the devices
1620          * available, 0xff terminates the enumeration.
1621          * Known codes:
1622          *      0x00 WLAN
1623          *      0x10 BLUETOOTH
1624          *      0x20 WWAN GPRS-EDGE
1625          *      0x21 WWAN HSDPA
1626          *      0x22 WWAN EV-DO
1627          *      0x23 WWAN GPS
1628          *      0x25 Gobi WWAN no GPS
1629          *      0x26 Gobi WWAN + GPS
1630          *      0x28 Gobi WWAN no GPS
1631          *      0x29 Gobi WWAN + GPS
1632          *      0x30 WIMAX
1633          *      0x50 Gobi WWAN no GPS
1634          *      0x51 Gobi WWAN + GPS
1635          *      0x70 no SIM card slot
1636          *      0x71 SIM card slot
1637          */
1638         for (i = 0; i < ARRAY_SIZE(buffer); i++) {
1639
1640                 if (buffer[i] == 0xff)
1641                         break;
1642
1643                 dprintk("Radio devices, found 0x%.2x\n", buffer[i]);
1644
1645                 if (buffer[i] == 0 && !sony_rfkill_devices[SONY_WIFI])
1646                         sony_nc_setup_rfkill(device, SONY_WIFI);
1647
1648                 if (buffer[i] == 0x10 && !sony_rfkill_devices[SONY_BLUETOOTH])
1649                         sony_nc_setup_rfkill(device, SONY_BLUETOOTH);
1650
1651                 if (((0xf0 & buffer[i]) == 0x20 ||
1652                                         (0xf0 & buffer[i]) == 0x50) &&
1653                                 !sony_rfkill_devices[SONY_WWAN])
1654                         sony_nc_setup_rfkill(device, SONY_WWAN);
1655
1656                 if (buffer[i] == 0x30 && !sony_rfkill_devices[SONY_WIMAX])
1657                         sony_nc_setup_rfkill(device, SONY_WIMAX);
1658         }
1659         return 0;
1660 }
1661
1662 /* Keyboard backlight feature */
1663 struct kbd_backlight {
1664         unsigned int handle;
1665         unsigned int base;
1666         unsigned int mode;
1667         unsigned int timeout;
1668         struct device_attribute mode_attr;
1669         struct device_attribute timeout_attr;
1670 };
1671
1672 static struct kbd_backlight *kbdbl_ctl;
1673
1674 static ssize_t __sony_nc_kbd_backlight_mode_set(u8 value)
1675 {
1676         int result;
1677
1678         if (value > 1)
1679                 return -EINVAL;
1680
1681         if (sony_call_snc_handle(kbdbl_ctl->handle,
1682                                 (value << 0x10) | (kbdbl_ctl->base), &result))
1683                 return -EIO;
1684
1685         /* Try to turn the light on/off immediately */
1686         sony_call_snc_handle(kbdbl_ctl->handle,
1687                         (value << 0x10) | (kbdbl_ctl->base + 0x100), &result);
1688
1689         kbdbl_ctl->mode = value;
1690
1691         return 0;
1692 }
1693
1694 static ssize_t sony_nc_kbd_backlight_mode_store(struct device *dev,
1695                 struct device_attribute *attr,
1696                 const char *buffer, size_t count)
1697 {
1698         int ret = 0;
1699         unsigned long value;
1700
1701         if (count > 31)
1702                 return -EINVAL;
1703
1704         if (kstrtoul(buffer, 10, &value))
1705                 return -EINVAL;
1706
1707         ret = __sony_nc_kbd_backlight_mode_set(value);
1708         if (ret < 0)
1709                 return ret;
1710
1711         return count;
1712 }
1713
1714 static ssize_t sony_nc_kbd_backlight_mode_show(struct device *dev,
1715                 struct device_attribute *attr, char *buffer)
1716 {
1717         ssize_t count = 0;
1718         count = snprintf(buffer, PAGE_SIZE, "%d\n", kbdbl_ctl->mode);
1719         return count;
1720 }
1721
1722 static int __sony_nc_kbd_backlight_timeout_set(u8 value)
1723 {
1724         int result;
1725
1726         if (value > 3)
1727                 return -EINVAL;
1728
1729         if (sony_call_snc_handle(kbdbl_ctl->handle, (value << 0x10) |
1730                                 (kbdbl_ctl->base + 0x200), &result))
1731                 return -EIO;
1732
1733         kbdbl_ctl->timeout = value;
1734
1735         return 0;
1736 }
1737
1738 static ssize_t sony_nc_kbd_backlight_timeout_store(struct device *dev,
1739                 struct device_attribute *attr,
1740                 const char *buffer, size_t count)
1741 {
1742         int ret = 0;
1743         unsigned long value;
1744
1745         if (count > 31)
1746                 return -EINVAL;
1747
1748         if (kstrtoul(buffer, 10, &value))
1749                 return -EINVAL;
1750
1751         ret = __sony_nc_kbd_backlight_timeout_set(value);
1752         if (ret < 0)
1753                 return ret;
1754
1755         return count;
1756 }
1757
1758 static ssize_t sony_nc_kbd_backlight_timeout_show(struct device *dev,
1759                 struct device_attribute *attr, char *buffer)
1760 {
1761         ssize_t count = 0;
1762         count = snprintf(buffer, PAGE_SIZE, "%d\n", kbdbl_ctl->timeout);
1763         return count;
1764 }
1765
1766 static int sony_nc_kbd_backlight_setup(struct platform_device *pd,
1767                 unsigned int handle)
1768 {
1769         int result;
1770         int ret = 0;
1771
1772         /* verify the kbd backlight presence, these handles are not used for
1773          * keyboard backlight only
1774          */
1775         ret = sony_call_snc_handle(handle, handle == 0x0137 ? 0x0B00 : 0x0100,
1776                         &result);
1777         if (ret)
1778                 return ret;
1779
1780         if ((handle == 0x0137 && !(result & 0x02)) ||
1781                         !(result & 0x01)) {
1782                 dprintk("no backlight keyboard found\n");
1783                 return 0;
1784         }
1785
1786         kbdbl_ctl = kzalloc(sizeof(*kbdbl_ctl), GFP_KERNEL);
1787         if (!kbdbl_ctl)
1788                 return -ENOMEM;
1789
1790         kbdbl_ctl->handle = handle;
1791         if (handle == 0x0137)
1792                 kbdbl_ctl->base = 0x0C00;
1793         else
1794                 kbdbl_ctl->base = 0x4000;
1795
1796         sysfs_attr_init(&kbdbl_ctl->mode_attr.attr);
1797         kbdbl_ctl->mode_attr.attr.name = "kbd_backlight";
1798         kbdbl_ctl->mode_attr.attr.mode = S_IRUGO | S_IWUSR;
1799         kbdbl_ctl->mode_attr.show = sony_nc_kbd_backlight_mode_show;
1800         kbdbl_ctl->mode_attr.store = sony_nc_kbd_backlight_mode_store;
1801
1802         sysfs_attr_init(&kbdbl_ctl->timeout_attr.attr);
1803         kbdbl_ctl->timeout_attr.attr.name = "kbd_backlight_timeout";
1804         kbdbl_ctl->timeout_attr.attr.mode = S_IRUGO | S_IWUSR;
1805         kbdbl_ctl->timeout_attr.show = sony_nc_kbd_backlight_timeout_show;
1806         kbdbl_ctl->timeout_attr.store = sony_nc_kbd_backlight_timeout_store;
1807
1808         ret = device_create_file(&pd->dev, &kbdbl_ctl->mode_attr);
1809         if (ret)
1810                 goto outkzalloc;
1811
1812         ret = device_create_file(&pd->dev, &kbdbl_ctl->timeout_attr);
1813         if (ret)
1814                 goto outmode;
1815
1816         __sony_nc_kbd_backlight_mode_set(kbd_backlight);
1817         __sony_nc_kbd_backlight_timeout_set(kbd_backlight_timeout);
1818
1819         return 0;
1820
1821 outmode:
1822         device_remove_file(&pd->dev, &kbdbl_ctl->mode_attr);
1823 outkzalloc:
1824         kfree(kbdbl_ctl);
1825         kbdbl_ctl = NULL;
1826         return ret;
1827 }
1828
1829 static void sony_nc_kbd_backlight_cleanup(struct platform_device *pd)
1830 {
1831         if (kbdbl_ctl) {
1832                 int result;
1833
1834                 device_remove_file(&pd->dev, &kbdbl_ctl->mode_attr);
1835                 device_remove_file(&pd->dev, &kbdbl_ctl->timeout_attr);
1836
1837                 /* restore the default hw behaviour */
1838                 sony_call_snc_handle(kbdbl_ctl->handle,
1839                                 kbdbl_ctl->base | 0x10000, &result);
1840                 sony_call_snc_handle(kbdbl_ctl->handle,
1841                                 kbdbl_ctl->base + 0x200, &result);
1842
1843                 kfree(kbdbl_ctl);
1844                 kbdbl_ctl = NULL;
1845         }
1846 }
1847
1848 static void sony_nc_kbd_backlight_resume(void)
1849 {
1850         int ignore = 0;
1851
1852         if (!kbdbl_ctl)
1853                 return;
1854
1855         if (kbdbl_ctl->mode == 0)
1856                 sony_call_snc_handle(kbdbl_ctl->handle, kbdbl_ctl->base,
1857                                 &ignore);
1858
1859         if (kbdbl_ctl->timeout != 0)
1860                 sony_call_snc_handle(kbdbl_ctl->handle,
1861                                 (kbdbl_ctl->base + 0x200) |
1862                                 (kbdbl_ctl->timeout << 0x10), &ignore);
1863 }
1864
1865 struct battery_care_control {
1866         struct device_attribute attrs[2];
1867         unsigned int handle;
1868 };
1869 static struct battery_care_control *bcare_ctl;
1870
1871 static ssize_t sony_nc_battery_care_limit_store(struct device *dev,
1872                 struct device_attribute *attr,
1873                 const char *buffer, size_t count)
1874 {
1875         unsigned int result, cmd;
1876         unsigned long value;
1877
1878         if (count > 31)
1879                 return -EINVAL;
1880
1881         if (kstrtoul(buffer, 10, &value))
1882                 return -EINVAL;
1883
1884         /*  limit values (2 bits):
1885          *  00 - none
1886          *  01 - 80%
1887          *  10 - 50%
1888          *  11 - 100%
1889          *
1890          *  bit 0: 0 disable BCL, 1 enable BCL
1891          *  bit 1: 1 tell to store the battery limit (see bits 6,7) too
1892          *  bits 2,3: reserved
1893          *  bits 4,5: store the limit into the EC
1894          *  bits 6,7: store the limit into the battery
1895          */
1896
1897         /*
1898          * handle 0x0115 should allow storing on battery too;
1899          * handle 0x0136 same as 0x0115 + health status;
1900          * handle 0x013f, same as 0x0136 but no storing on the battery
1901          *
1902          * Store only inside the EC for now, regardless the handle number
1903          */
1904         if (value == 0)
1905                 /* disable limits */
1906                 cmd = 0x0;
1907
1908         else if (value <= 50)
1909                 cmd = 0x21;
1910
1911         else if (value <= 80)
1912                 cmd = 0x11;
1913
1914         else if (value <= 100)
1915                 cmd = 0x31;
1916
1917         else
1918                 return -EINVAL;
1919
1920         if (sony_call_snc_handle(bcare_ctl->handle, (cmd << 0x10) | 0x0100,
1921                                 &result))
1922                 return -EIO;
1923
1924         return count;
1925 }
1926
1927 static ssize_t sony_nc_battery_care_limit_show(struct device *dev,
1928                 struct device_attribute *attr, char *buffer)
1929 {
1930         unsigned int result, status;
1931
1932         if (sony_call_snc_handle(bcare_ctl->handle, 0x0000, &result))
1933                 return -EIO;
1934
1935         status = (result & 0x01) ? ((result & 0x30) >> 0x04) : 0;
1936         switch (status) {
1937         case 1:
1938                 status = 80;
1939                 break;
1940         case 2:
1941                 status = 50;
1942                 break;
1943         case 3:
1944                 status = 100;
1945                 break;
1946         default:
1947                 status = 0;
1948                 break;
1949         }
1950
1951         return snprintf(buffer, PAGE_SIZE, "%d\n", status);
1952 }
1953
1954 static ssize_t sony_nc_battery_care_health_show(struct device *dev,
1955                 struct device_attribute *attr, char *buffer)
1956 {
1957         ssize_t count = 0;
1958         unsigned int health;
1959
1960         if (sony_call_snc_handle(bcare_ctl->handle, 0x0200, &health))
1961                 return -EIO;
1962
1963         count = snprintf(buffer, PAGE_SIZE, "%d\n", health & 0xff);
1964
1965         return count;
1966 }
1967
1968 static int sony_nc_battery_care_setup(struct platform_device *pd,
1969                 unsigned int handle)
1970 {
1971         int ret = 0;
1972
1973         bcare_ctl = kzalloc(sizeof(struct battery_care_control), GFP_KERNEL);
1974         if (!bcare_ctl)
1975                 return -ENOMEM;
1976
1977         bcare_ctl->handle = handle;
1978
1979         sysfs_attr_init(&bcare_ctl->attrs[0].attr);
1980         bcare_ctl->attrs[0].attr.name = "battery_care_limiter";
1981         bcare_ctl->attrs[0].attr.mode = S_IRUGO | S_IWUSR;
1982         bcare_ctl->attrs[0].show = sony_nc_battery_care_limit_show;
1983         bcare_ctl->attrs[0].store = sony_nc_battery_care_limit_store;
1984
1985         ret = device_create_file(&pd->dev, &bcare_ctl->attrs[0]);
1986         if (ret)
1987                 goto outkzalloc;
1988
1989         /* 0x0115 is for models with no health reporting capability */
1990         if (handle == 0x0115)
1991                 return 0;
1992
1993         sysfs_attr_init(&bcare_ctl->attrs[1].attr);
1994         bcare_ctl->attrs[1].attr.name = "battery_care_health";
1995         bcare_ctl->attrs[1].attr.mode = S_IRUGO;
1996         bcare_ctl->attrs[1].show = sony_nc_battery_care_health_show;
1997
1998         ret = device_create_file(&pd->dev, &bcare_ctl->attrs[1]);
1999         if (ret)
2000                 goto outlimiter;
2001
2002         return 0;
2003
2004 outlimiter:
2005         device_remove_file(&pd->dev, &bcare_ctl->attrs[0]);
2006
2007 outkzalloc:
2008         kfree(bcare_ctl);
2009         bcare_ctl = NULL;
2010
2011         return ret;
2012 }
2013
2014 static void sony_nc_battery_care_cleanup(struct platform_device *pd)
2015 {
2016         if (bcare_ctl) {
2017                 device_remove_file(&pd->dev, &bcare_ctl->attrs[0]);
2018                 if (bcare_ctl->handle != 0x0115)
2019                         device_remove_file(&pd->dev, &bcare_ctl->attrs[1]);
2020
2021                 kfree(bcare_ctl);
2022                 bcare_ctl = NULL;
2023         }
2024 }
2025
2026 struct snc_thermal_ctrl {
2027         unsigned int mode;
2028         unsigned int profiles;
2029         struct device_attribute mode_attr;
2030         struct device_attribute profiles_attr;
2031 };
2032 static struct snc_thermal_ctrl *th_handle;
2033
2034 #define THM_PROFILE_MAX 3
2035 static const char * const snc_thermal_profiles[] = {
2036         "balanced",
2037         "silent",
2038         "performance"
2039 };
2040
2041 static int sony_nc_thermal_mode_set(unsigned short mode)
2042 {
2043         unsigned int result;
2044
2045         /* the thermal profile seems to be a two bit bitmask:
2046          * lsb -> silent
2047          * msb -> performance
2048          * no bit set is the normal operation and is always valid
2049          * Some vaio models only have "balanced" and "performance"
2050          */
2051         if ((mode && !(th_handle->profiles & mode)) || mode >= THM_PROFILE_MAX)
2052                 return -EINVAL;
2053
2054         if (sony_call_snc_handle(0x0122, mode << 0x10 | 0x0200, &result))
2055                 return -EIO;
2056
2057         th_handle->mode = mode;
2058
2059         return 0;
2060 }
2061
2062 static int sony_nc_thermal_mode_get(void)
2063 {
2064         unsigned int result;
2065
2066         if (sony_call_snc_handle(0x0122, 0x0100, &result))
2067                 return -EIO;
2068
2069         return result & 0xff;
2070 }
2071
2072 static ssize_t sony_nc_thermal_profiles_show(struct device *dev,
2073                 struct device_attribute *attr, char *buffer)
2074 {
2075         short cnt;
2076         size_t idx = 0;
2077
2078         for (cnt = 0; cnt < THM_PROFILE_MAX; cnt++) {
2079                 if (!cnt || (th_handle->profiles & cnt))
2080                         idx += snprintf(buffer + idx, PAGE_SIZE - idx, "%s ",
2081                                         snc_thermal_profiles[cnt]);
2082         }
2083         idx += snprintf(buffer + idx, PAGE_SIZE - idx, "\n");
2084
2085         return idx;
2086 }
2087
2088 static ssize_t sony_nc_thermal_mode_store(struct device *dev,
2089                 struct device_attribute *attr,
2090                 const char *buffer, size_t count)
2091 {
2092         unsigned short cmd;
2093         size_t len = count;
2094
2095         if (count == 0)
2096                 return -EINVAL;
2097
2098         /* skip the newline if present */
2099         if (buffer[len - 1] == '\n')
2100                 len--;
2101
2102         for (cmd = 0; cmd < THM_PROFILE_MAX; cmd++)
2103                 if (strncmp(buffer, snc_thermal_profiles[cmd], len) == 0)
2104                         break;
2105
2106         if (sony_nc_thermal_mode_set(cmd))
2107                 return -EIO;
2108
2109         return count;
2110 }
2111
2112 static ssize_t sony_nc_thermal_mode_show(struct device *dev,
2113                 struct device_attribute *attr, char *buffer)
2114 {
2115         ssize_t count = 0;
2116         unsigned int mode = sony_nc_thermal_mode_get();
2117
2118         if (mode < 0)
2119                 return mode;
2120
2121         count = snprintf(buffer, PAGE_SIZE, "%s\n", snc_thermal_profiles[mode]);
2122
2123         return count;
2124 }
2125
2126 static int sony_nc_thermal_setup(struct platform_device *pd)
2127 {
2128         int ret = 0;
2129         th_handle = kzalloc(sizeof(struct snc_thermal_ctrl), GFP_KERNEL);
2130         if (!th_handle)
2131                 return -ENOMEM;
2132
2133         ret = sony_call_snc_handle(0x0122, 0x0000, &th_handle->profiles);
2134         if (ret) {
2135                 pr_warn("couldn't to read the thermal profiles\n");
2136                 goto outkzalloc;
2137         }
2138
2139         ret = sony_nc_thermal_mode_get();
2140         if (ret < 0) {
2141                 pr_warn("couldn't to read the current thermal profile");
2142                 goto outkzalloc;
2143         }
2144         th_handle->mode = ret;
2145
2146         sysfs_attr_init(&th_handle->profiles_attr.attr);
2147         th_handle->profiles_attr.attr.name = "thermal_profiles";
2148         th_handle->profiles_attr.attr.mode = S_IRUGO;
2149         th_handle->profiles_attr.show = sony_nc_thermal_profiles_show;
2150
2151         sysfs_attr_init(&th_handle->mode_attr.attr);
2152         th_handle->mode_attr.attr.name = "thermal_control";
2153         th_handle->mode_attr.attr.mode = S_IRUGO | S_IWUSR;
2154         th_handle->mode_attr.show = sony_nc_thermal_mode_show;
2155         th_handle->mode_attr.store = sony_nc_thermal_mode_store;
2156
2157         ret = device_create_file(&pd->dev, &th_handle->profiles_attr);
2158         if (ret)
2159                 goto outkzalloc;
2160
2161         ret = device_create_file(&pd->dev, &th_handle->mode_attr);
2162         if (ret)
2163                 goto outprofiles;
2164
2165         return 0;
2166
2167 outprofiles:
2168         device_remove_file(&pd->dev, &th_handle->profiles_attr);
2169 outkzalloc:
2170         kfree(th_handle);
2171         th_handle = NULL;
2172         return ret;
2173 }
2174
2175 static void sony_nc_thermal_cleanup(struct platform_device *pd)
2176 {
2177         if (th_handle) {
2178                 device_remove_file(&pd->dev, &th_handle->profiles_attr);
2179                 device_remove_file(&pd->dev, &th_handle->mode_attr);
2180                 kfree(th_handle);
2181                 th_handle = NULL;
2182         }
2183 }
2184
2185 static void sony_nc_thermal_resume(void)
2186 {
2187         unsigned int status = sony_nc_thermal_mode_get();
2188
2189         if (status != th_handle->mode)
2190                 sony_nc_thermal_mode_set(th_handle->mode);
2191 }
2192
2193 /* resume on LID open */
2194 struct snc_lid_resume_control {
2195         struct device_attribute attrs[3];
2196         unsigned int status;
2197 };
2198 static struct snc_lid_resume_control *lid_ctl;
2199
2200 static ssize_t sony_nc_lid_resume_store(struct device *dev,
2201                                         struct device_attribute *attr,
2202                                         const char *buffer, size_t count)
2203 {
2204         unsigned int result, pos;
2205         unsigned long value;
2206         if (count > 31)
2207                 return -EINVAL;
2208
2209         if (kstrtoul(buffer, 10, &value) || value > 1)
2210                 return -EINVAL;
2211
2212         /* the value we have to write to SNC is a bitmask:
2213          * +--------------+
2214          * | S3 | S4 | S5 |
2215          * +--------------+
2216          *   2    1    0
2217          */
2218         if (strcmp(attr->attr.name, "lid_resume_S3") == 0)
2219                 pos = 2;
2220         else if (strcmp(attr->attr.name, "lid_resume_S4") == 0)
2221                 pos = 1;
2222         else if (strcmp(attr->attr.name, "lid_resume_S5") == 0)
2223                 pos = 0;
2224         else
2225                return -EINVAL;
2226
2227         if (value)
2228                 value = lid_ctl->status | (1 << pos);
2229         else
2230                 value = lid_ctl->status & ~(1 << pos);
2231
2232         if (sony_call_snc_handle(0x0119, value << 0x10 | 0x0100, &result))
2233                 return -EIO;
2234
2235         lid_ctl->status = value;
2236
2237         return count;
2238 }
2239
2240 static ssize_t sony_nc_lid_resume_show(struct device *dev,
2241                                        struct device_attribute *attr, char *buffer)
2242 {
2243         unsigned int pos;
2244
2245         if (strcmp(attr->attr.name, "lid_resume_S3") == 0)
2246                 pos = 2;
2247         else if (strcmp(attr->attr.name, "lid_resume_S4") == 0)
2248                 pos = 1;
2249         else if (strcmp(attr->attr.name, "lid_resume_S5") == 0)
2250                 pos = 0;
2251         else
2252                 return -EINVAL;
2253
2254         return snprintf(buffer, PAGE_SIZE, "%d\n",
2255                         (lid_ctl->status >> pos) & 0x01);
2256 }
2257
2258 static int sony_nc_lid_resume_setup(struct platform_device *pd)
2259 {
2260         unsigned int result;
2261         int i;
2262
2263         if (sony_call_snc_handle(0x0119, 0x0000, &result))
2264                 return -EIO;
2265
2266         lid_ctl = kzalloc(sizeof(struct snc_lid_resume_control), GFP_KERNEL);
2267         if (!lid_ctl)
2268                 return -ENOMEM;
2269
2270         lid_ctl->status = result & 0x7;
2271
2272         sysfs_attr_init(&lid_ctl->attrs[0].attr);
2273         lid_ctl->attrs[0].attr.name = "lid_resume_S3";
2274         lid_ctl->attrs[0].attr.mode = S_IRUGO | S_IWUSR;
2275         lid_ctl->attrs[0].show = sony_nc_lid_resume_show;
2276         lid_ctl->attrs[0].store = sony_nc_lid_resume_store;
2277
2278         sysfs_attr_init(&lid_ctl->attrs[1].attr);
2279         lid_ctl->attrs[1].attr.name = "lid_resume_S4";
2280         lid_ctl->attrs[1].attr.mode = S_IRUGO | S_IWUSR;
2281         lid_ctl->attrs[1].show = sony_nc_lid_resume_show;
2282         lid_ctl->attrs[1].store = sony_nc_lid_resume_store;
2283
2284         sysfs_attr_init(&lid_ctl->attrs[2].attr);
2285         lid_ctl->attrs[2].attr.name = "lid_resume_S5";
2286         lid_ctl->attrs[2].attr.mode = S_IRUGO | S_IWUSR;
2287         lid_ctl->attrs[2].show = sony_nc_lid_resume_show;
2288         lid_ctl->attrs[2].store = sony_nc_lid_resume_store;
2289
2290         for (i = 0; i < 3; i++) {
2291                 result = device_create_file(&pd->dev, &lid_ctl->attrs[i]);
2292                 if (result)
2293                         goto liderror;
2294         }
2295
2296         return 0;
2297
2298 liderror:
2299         for (; i > 0; i--)
2300                 device_remove_file(&pd->dev, &lid_ctl->attrs[i]);
2301
2302         kfree(lid_ctl);
2303         lid_ctl = NULL;
2304
2305         return result;
2306 }
2307
2308 static void sony_nc_lid_resume_cleanup(struct platform_device *pd)
2309 {
2310         int i;
2311
2312         if (lid_ctl) {
2313                 for (i = 0; i < 3; i++)
2314                         device_remove_file(&pd->dev, &lid_ctl->attrs[i]);
2315
2316                 kfree(lid_ctl);
2317                 lid_ctl = NULL;
2318         }
2319 }
2320
2321 /* High speed charging function */
2322 static struct device_attribute *hsc_handle;
2323
2324 static ssize_t sony_nc_highspeed_charging_store(struct device *dev,
2325                 struct device_attribute *attr,
2326                 const char *buffer, size_t count)
2327 {
2328         unsigned int result;
2329         unsigned long value;
2330
2331         if (count > 31)
2332                 return -EINVAL;
2333
2334         if (kstrtoul(buffer, 10, &value) || value > 1)
2335                 return -EINVAL;
2336
2337         if (sony_call_snc_handle(0x0131, value << 0x10 | 0x0200, &result))
2338                 return -EIO;
2339
2340         return count;
2341 }
2342
2343 static ssize_t sony_nc_highspeed_charging_show(struct device *dev,
2344                 struct device_attribute *attr, char *buffer)
2345 {
2346         unsigned int result;
2347
2348         if (sony_call_snc_handle(0x0131, 0x0100, &result))
2349                 return -EIO;
2350
2351         return snprintf(buffer, PAGE_SIZE, "%d\n", result & 0x01);
2352 }
2353
2354 static int sony_nc_highspeed_charging_setup(struct platform_device *pd)
2355 {
2356         unsigned int result;
2357
2358         if (sony_call_snc_handle(0x0131, 0x0000, &result) || !(result & 0x01)) {
2359                 /* some models advertise the handle but have no implementation
2360                  * for it
2361                  */
2362                 pr_info("No High Speed Charging capability found\n");
2363                 return 0;
2364         }
2365
2366         hsc_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2367         if (!hsc_handle)
2368                 return -ENOMEM;
2369
2370         sysfs_attr_init(&hsc_handle->attr);
2371         hsc_handle->attr.name = "battery_highspeed_charging";
2372         hsc_handle->attr.mode = S_IRUGO | S_IWUSR;
2373         hsc_handle->show = sony_nc_highspeed_charging_show;
2374         hsc_handle->store = sony_nc_highspeed_charging_store;
2375
2376         result = device_create_file(&pd->dev, hsc_handle);
2377         if (result) {
2378                 kfree(hsc_handle);
2379                 hsc_handle = NULL;
2380                 return result;
2381         }
2382
2383         return 0;
2384 }
2385
2386 static void sony_nc_highspeed_charging_cleanup(struct platform_device *pd)
2387 {
2388         if (hsc_handle) {
2389                 device_remove_file(&pd->dev, hsc_handle);
2390                 kfree(hsc_handle);
2391                 hsc_handle = NULL;
2392         }
2393 }
2394
2395 /* Touchpad enable/disable */
2396 struct touchpad_control {
2397         struct device_attribute attr;
2398         int handle;
2399 };
2400 static struct touchpad_control *tp_ctl;
2401
2402 static ssize_t sony_nc_touchpad_store(struct device *dev,
2403                 struct device_attribute *attr, const char *buffer, size_t count)
2404 {
2405         unsigned int result;
2406         unsigned long value;
2407
2408         if (count > 31)
2409                 return -EINVAL;
2410
2411         if (kstrtoul(buffer, 10, &value) || value > 1)
2412                 return -EINVAL;
2413
2414         /* sysfs: 0 disabled, 1 enabled
2415          * EC: 0 enabled, 1 disabled
2416          */
2417         if (sony_call_snc_handle(tp_ctl->handle,
2418                                 (!value << 0x10) | 0x100, &result))
2419                 return -EIO;
2420
2421         return count;
2422 }
2423
2424 static ssize_t sony_nc_touchpad_show(struct device *dev,
2425                 struct device_attribute *attr, char *buffer)
2426 {
2427         unsigned int result;
2428
2429         if (sony_call_snc_handle(tp_ctl->handle, 0x000, &result))
2430                 return -EINVAL;
2431
2432         return snprintf(buffer, PAGE_SIZE, "%d\n", !(result & 0x01));
2433 }
2434
2435 static int sony_nc_touchpad_setup(struct platform_device *pd,
2436                 unsigned int handle)
2437 {
2438         int ret = 0;
2439
2440         tp_ctl = kzalloc(sizeof(struct touchpad_control), GFP_KERNEL);
2441         if (!tp_ctl)
2442                 return -ENOMEM;
2443
2444         tp_ctl->handle = handle;
2445
2446         sysfs_attr_init(&tp_ctl->attr.attr);
2447         tp_ctl->attr.attr.name = "touchpad";
2448         tp_ctl->attr.attr.mode = S_IRUGO | S_IWUSR;
2449         tp_ctl->attr.show = sony_nc_touchpad_show;
2450         tp_ctl->attr.store = sony_nc_touchpad_store;
2451
2452         ret = device_create_file(&pd->dev, &tp_ctl->attr);
2453         if (ret) {
2454                 kfree(tp_ctl);
2455                 tp_ctl = NULL;
2456         }
2457
2458         return ret;
2459 }
2460
2461 static void sony_nc_touchpad_cleanup(struct platform_device *pd)
2462 {
2463         if (tp_ctl) {
2464                 device_remove_file(&pd->dev, &tp_ctl->attr);
2465                 kfree(tp_ctl);
2466                 tp_ctl = NULL;
2467         }
2468 }
2469
2470 static void sony_nc_backlight_ng_read_limits(int handle,
2471                 struct sony_backlight_props *props)
2472 {
2473         u64 offset;
2474         int i;
2475         u8 min = 0xff, max = 0x00;
2476         unsigned char buffer[32] = { 0 };
2477
2478         props->handle = handle;
2479         props->offset = 0;
2480         props->maxlvl = 0xff;
2481
2482         offset = sony_find_snc_handle(handle);
2483         if (offset < 0)
2484                 return;
2485
2486         /* try to read the boundaries from ACPI tables, if we fail the above
2487          * defaults should be reasonable
2488          */
2489         i = sony_nc_buffer_call(sony_nc_acpi_handle, "SN06", &offset, buffer,
2490                         32);
2491         if (i < 0)
2492                 return;
2493
2494         /* the buffer lists brightness levels available, brightness levels are
2495          * from position 0 to 8 in the array, other values are used by ALS
2496          * control.
2497          */
2498         for (i = 0; i < 9 && i < ARRAY_SIZE(buffer); i++) {
2499
2500                 dprintk("Brightness level: %d\n", buffer[i]);
2501
2502                 if (!buffer[i])
2503                         break;
2504
2505                 if (buffer[i] > max)
2506                         max = buffer[i];
2507                 if (buffer[i] < min)
2508                         min = buffer[i];
2509         }
2510         props->offset = min;
2511         props->maxlvl = max;
2512         dprintk("Brightness levels: min=%d max=%d\n", props->offset,
2513                         props->maxlvl);
2514 }
2515
2516 static void sony_nc_backlight_setup(void)
2517 {
2518         acpi_handle unused;
2519         int max_brightness = 0;
2520         const struct backlight_ops *ops = NULL;
2521         struct backlight_properties props;
2522
2523         if (sony_find_snc_handle(0x12f) != -1) {
2524                 ops = &sony_backlight_ng_ops;
2525                 sony_nc_backlight_ng_read_limits(0x12f, &sony_bl_props);
2526                 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
2527
2528         } else if (sony_find_snc_handle(0x137) != -1) {
2529                 ops = &sony_backlight_ng_ops;
2530                 sony_nc_backlight_ng_read_limits(0x137, &sony_bl_props);
2531                 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
2532
2533         } else if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT",
2534                                                 &unused))) {
2535                 ops = &sony_backlight_ops;
2536                 max_brightness = SONY_MAX_BRIGHTNESS - 1;
2537
2538         } else
2539                 return;
2540
2541         memset(&props, 0, sizeof(struct backlight_properties));
2542         props.type = BACKLIGHT_PLATFORM;
2543         props.max_brightness = max_brightness;
2544         sony_bl_props.dev = backlight_device_register("sony", NULL,
2545                                                       &sony_bl_props,
2546                                                       ops, &props);
2547
2548         if (IS_ERR(sony_bl_props.dev)) {
2549                 pr_warn("unable to register backlight device\n");
2550                 sony_bl_props.dev = NULL;
2551         } else
2552                 sony_bl_props.dev->props.brightness =
2553                         ops->get_brightness(sony_bl_props.dev);
2554 }
2555
2556 static void sony_nc_backlight_cleanup(void)
2557 {
2558         if (sony_bl_props.dev)
2559                 backlight_device_unregister(sony_bl_props.dev);
2560 }
2561
2562 static int sony_nc_add(struct acpi_device *device)
2563 {
2564         acpi_status status;
2565         int result = 0;
2566         acpi_handle handle;
2567         struct sony_nc_value *item;
2568
2569         pr_info("%s v%s\n", SONY_NC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
2570
2571         sony_nc_acpi_device = device;
2572         strcpy(acpi_device_class(device), "sony/hotkey");
2573
2574         sony_nc_acpi_handle = device->handle;
2575
2576         /* read device status */
2577         result = acpi_bus_get_status(device);
2578         /* bail IFF the above call was successful and the device is not present */
2579         if (!result && !device->status.present) {
2580                 dprintk("Device not present\n");
2581                 result = -ENODEV;
2582                 goto outwalk;
2583         }
2584
2585         result = sony_pf_add();
2586         if (result)
2587                 goto outpresent;
2588
2589         if (debug) {
2590                 status = acpi_walk_namespace(ACPI_TYPE_METHOD,
2591                                 sony_nc_acpi_handle, 1, sony_walk_callback,
2592                                 NULL, NULL, NULL);
2593                 if (ACPI_FAILURE(status)) {
2594                         pr_warn("unable to walk acpi resources\n");
2595                         result = -ENODEV;
2596                         goto outpresent;
2597                 }
2598         }
2599
2600         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "ECON",
2601                                          &handle))) {
2602                 int arg = 1;
2603                 if (sony_nc_int_call(sony_nc_acpi_handle, "ECON", &arg, NULL))
2604                         dprintk("ECON Method failed\n");
2605         }
2606
2607         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "SN00",
2608                                          &handle))) {
2609                 dprintk("Doing SNC setup\n");
2610                 /* retrieve the available handles */
2611                 result = sony_nc_handles_setup(sony_pf_device);
2612                 if (!result)
2613                         sony_nc_function_setup(device, sony_pf_device);
2614         }
2615
2616         /* setup input devices and helper fifo */
2617         result = sony_laptop_setup_input(device);
2618         if (result) {
2619                 pr_err("Unable to create input devices\n");
2620                 goto outsnc;
2621         }
2622
2623         if (acpi_video_backlight_support()) {
2624                 pr_info("brightness ignored, must be controlled by ACPI video driver\n");
2625         } else {
2626                 sony_nc_backlight_setup();
2627         }
2628
2629         /* create sony_pf sysfs attributes related to the SNC device */
2630         for (item = sony_nc_values; item->name; ++item) {
2631
2632                 if (!debug && item->debug)
2633                         continue;
2634
2635                 /* find the available acpiget as described in the DSDT */
2636                 for (; item->acpiget && *item->acpiget; ++item->acpiget) {
2637                         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
2638                                                          *item->acpiget,
2639                                                          &handle))) {
2640                                 dprintk("Found %s getter: %s\n",
2641                                                 item->name, *item->acpiget);
2642                                 item->devattr.attr.mode |= S_IRUGO;
2643                                 break;
2644                         }
2645                 }
2646
2647                 /* find the available acpiset as described in the DSDT */
2648                 for (; item->acpiset && *item->acpiset; ++item->acpiset) {
2649                         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
2650                                                          *item->acpiset,
2651                                                          &handle))) {
2652                                 dprintk("Found %s setter: %s\n",
2653                                                 item->name, *item->acpiset);
2654                                 item->devattr.attr.mode |= S_IWUSR;
2655                                 break;
2656                         }
2657                 }
2658
2659                 if (item->devattr.attr.mode != 0) {
2660                         result =
2661                             device_create_file(&sony_pf_device->dev,
2662                                                &item->devattr);
2663                         if (result)
2664                                 goto out_sysfs;
2665                 }
2666         }
2667
2668         return 0;
2669
2670       out_sysfs:
2671         for (item = sony_nc_values; item->name; ++item) {
2672                 device_remove_file(&sony_pf_device->dev, &item->devattr);
2673         }
2674         sony_nc_backlight_cleanup();
2675
2676         sony_laptop_remove_input();
2677
2678       outsnc:
2679         sony_nc_function_cleanup(sony_pf_device);
2680         sony_nc_handles_cleanup(sony_pf_device);
2681
2682       outpresent:
2683         sony_pf_remove();
2684
2685       outwalk:
2686         sony_nc_rfkill_cleanup();
2687         return result;
2688 }
2689
2690 static int sony_nc_remove(struct acpi_device *device, int type)
2691 {
2692         struct sony_nc_value *item;
2693
2694         sony_nc_backlight_cleanup();
2695
2696         sony_nc_acpi_device = NULL;
2697
2698         for (item = sony_nc_values; item->name; ++item) {
2699                 device_remove_file(&sony_pf_device->dev, &item->devattr);
2700         }
2701
2702         sony_nc_function_cleanup(sony_pf_device);
2703         sony_nc_handles_cleanup(sony_pf_device);
2704         sony_pf_remove();
2705         sony_laptop_remove_input();
2706         dprintk(SONY_NC_DRIVER_NAME " removed.\n");
2707
2708         return 0;
2709 }
2710
2711 static const struct acpi_device_id sony_device_ids[] = {
2712         {SONY_NC_HID, 0},
2713         {SONY_PIC_HID, 0},
2714         {"", 0},
2715 };
2716 MODULE_DEVICE_TABLE(acpi, sony_device_ids);
2717
2718 static const struct acpi_device_id sony_nc_device_ids[] = {
2719         {SONY_NC_HID, 0},
2720         {"", 0},
2721 };
2722
2723 static struct acpi_driver sony_nc_driver = {
2724         .name = SONY_NC_DRIVER_NAME,
2725         .class = SONY_NC_CLASS,
2726         .ids = sony_nc_device_ids,
2727         .owner = THIS_MODULE,
2728         .ops = {
2729                 .add = sony_nc_add,
2730                 .remove = sony_nc_remove,
2731                 .resume = sony_nc_resume,
2732                 .notify = sony_nc_notify,
2733                 },
2734 };
2735
2736 /*********** SPIC (SNY6001) Device ***********/
2737
2738 #define SONYPI_DEVICE_TYPE1     0x00000001
2739 #define SONYPI_DEVICE_TYPE2     0x00000002
2740 #define SONYPI_DEVICE_TYPE3     0x00000004
2741
2742 #define SONYPI_TYPE1_OFFSET     0x04
2743 #define SONYPI_TYPE2_OFFSET     0x12
2744 #define SONYPI_TYPE3_OFFSET     0x12
2745
2746 struct sony_pic_ioport {
2747         struct acpi_resource_io io1;
2748         struct acpi_resource_io io2;
2749         struct list_head        list;
2750 };
2751
2752 struct sony_pic_irq {
2753         struct acpi_resource_irq        irq;
2754         struct list_head                list;
2755 };
2756
2757 struct sonypi_eventtypes {
2758         u8                      data;
2759         unsigned long           mask;
2760         struct sonypi_event     *events;
2761 };
2762
2763 struct sony_pic_dev {
2764         struct acpi_device              *acpi_dev;
2765         struct sony_pic_irq             *cur_irq;
2766         struct sony_pic_ioport          *cur_ioport;
2767         struct list_head                interrupts;
2768         struct list_head                ioports;
2769         struct mutex                    lock;
2770         struct sonypi_eventtypes        *event_types;
2771         int                             (*handle_irq)(const u8, const u8);
2772         int                             model;
2773         u16                             evport_offset;
2774         u8                              camera_power;
2775         u8                              bluetooth_power;
2776         u8                              wwan_power;
2777 };
2778
2779 static struct sony_pic_dev spic_dev = {
2780         .interrupts     = LIST_HEAD_INIT(spic_dev.interrupts),
2781         .ioports        = LIST_HEAD_INIT(spic_dev.ioports),
2782 };
2783
2784 static int spic_drv_registered;
2785
2786 /* Event masks */
2787 #define SONYPI_JOGGER_MASK                      0x00000001
2788 #define SONYPI_CAPTURE_MASK                     0x00000002
2789 #define SONYPI_FNKEY_MASK                       0x00000004
2790 #define SONYPI_BLUETOOTH_MASK                   0x00000008
2791 #define SONYPI_PKEY_MASK                        0x00000010
2792 #define SONYPI_BACK_MASK                        0x00000020
2793 #define SONYPI_HELP_MASK                        0x00000040
2794 #define SONYPI_LID_MASK                         0x00000080
2795 #define SONYPI_ZOOM_MASK                        0x00000100
2796 #define SONYPI_THUMBPHRASE_MASK                 0x00000200
2797 #define SONYPI_MEYE_MASK                        0x00000400
2798 #define SONYPI_MEMORYSTICK_MASK                 0x00000800
2799 #define SONYPI_BATTERY_MASK                     0x00001000
2800 #define SONYPI_WIRELESS_MASK                    0x00002000
2801
2802 struct sonypi_event {
2803         u8      data;
2804         u8      event;
2805 };
2806
2807 /* The set of possible button release events */
2808 static struct sonypi_event sonypi_releaseev[] = {
2809         { 0x00, SONYPI_EVENT_ANYBUTTON_RELEASED },
2810         { 0, 0 }
2811 };
2812
2813 /* The set of possible jogger events  */
2814 static struct sonypi_event sonypi_joggerev[] = {
2815         { 0x1f, SONYPI_EVENT_JOGDIAL_UP },
2816         { 0x01, SONYPI_EVENT_JOGDIAL_DOWN },
2817         { 0x5f, SONYPI_EVENT_JOGDIAL_UP_PRESSED },
2818         { 0x41, SONYPI_EVENT_JOGDIAL_DOWN_PRESSED },
2819         { 0x1e, SONYPI_EVENT_JOGDIAL_FAST_UP },
2820         { 0x02, SONYPI_EVENT_JOGDIAL_FAST_DOWN },
2821         { 0x5e, SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED },
2822         { 0x42, SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED },
2823         { 0x1d, SONYPI_EVENT_JOGDIAL_VFAST_UP },
2824         { 0x03, SONYPI_EVENT_JOGDIAL_VFAST_DOWN },
2825         { 0x5d, SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED },
2826         { 0x43, SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED },
2827         { 0x40, SONYPI_EVENT_JOGDIAL_PRESSED },
2828         { 0, 0 }
2829 };
2830
2831 /* The set of possible capture button events */
2832 static struct sonypi_event sonypi_captureev[] = {
2833         { 0x05, SONYPI_EVENT_CAPTURE_PARTIALPRESSED },
2834         { 0x07, SONYPI_EVENT_CAPTURE_PRESSED },
2835         { 0x40, SONYPI_EVENT_CAPTURE_PRESSED },
2836         { 0x01, SONYPI_EVENT_CAPTURE_PARTIALRELEASED },
2837         { 0, 0 }
2838 };
2839
2840 /* The set of possible fnkeys events */
2841 static struct sonypi_event sonypi_fnkeyev[] = {
2842         { 0x10, SONYPI_EVENT_FNKEY_ESC },
2843         { 0x11, SONYPI_EVENT_FNKEY_F1 },
2844         { 0x12, SONYPI_EVENT_FNKEY_F2 },
2845         { 0x13, SONYPI_EVENT_FNKEY_F3 },
2846         { 0x14, SONYPI_EVENT_FNKEY_F4 },
2847         { 0x15, SONYPI_EVENT_FNKEY_F5 },
2848         { 0x16, SONYPI_EVENT_FNKEY_F6 },
2849         { 0x17, SONYPI_EVENT_FNKEY_F7 },
2850         { 0x18, SONYPI_EVENT_FNKEY_F8 },
2851         { 0x19, SONYPI_EVENT_FNKEY_F9 },
2852         { 0x1a, SONYPI_EVENT_FNKEY_F10 },
2853         { 0x1b, SONYPI_EVENT_FNKEY_F11 },
2854         { 0x1c, SONYPI_EVENT_FNKEY_F12 },
2855         { 0x1f, SONYPI_EVENT_FNKEY_RELEASED },
2856         { 0x21, SONYPI_EVENT_FNKEY_1 },
2857         { 0x22, SONYPI_EVENT_FNKEY_2 },
2858         { 0x31, SONYPI_EVENT_FNKEY_D },
2859         { 0x32, SONYPI_EVENT_FNKEY_E },
2860         { 0x33, SONYPI_EVENT_FNKEY_F },
2861         { 0x34, SONYPI_EVENT_FNKEY_S },
2862         { 0x35, SONYPI_EVENT_FNKEY_B },
2863         { 0x36, SONYPI_EVENT_FNKEY_ONLY },
2864         { 0, 0 }
2865 };
2866
2867 /* The set of possible program key events */
2868 static struct sonypi_event sonypi_pkeyev[] = {
2869         { 0x01, SONYPI_EVENT_PKEY_P1 },
2870         { 0x02, SONYPI_EVENT_PKEY_P2 },
2871         { 0x04, SONYPI_EVENT_PKEY_P3 },
2872         { 0x20, SONYPI_EVENT_PKEY_P1 },
2873         { 0, 0 }
2874 };
2875
2876 /* The set of possible bluetooth events */
2877 static struct sonypi_event sonypi_blueev[] = {
2878         { 0x55, SONYPI_EVENT_BLUETOOTH_PRESSED },
2879         { 0x59, SONYPI_EVENT_BLUETOOTH_ON },
2880         { 0x5a, SONYPI_EVENT_BLUETOOTH_OFF },
2881         { 0, 0 }
2882 };
2883
2884 /* The set of possible wireless events */
2885 static struct sonypi_event sonypi_wlessev[] = {
2886         { 0x59, SONYPI_EVENT_IGNORE },
2887         { 0x5a, SONYPI_EVENT_IGNORE },
2888         { 0, 0 }
2889 };
2890
2891 /* The set of possible back button events */
2892 static struct sonypi_event sonypi_backev[] = {
2893         { 0x20, SONYPI_EVENT_BACK_PRESSED },
2894         { 0, 0 }
2895 };
2896
2897 /* The set of possible help button events */
2898 static struct sonypi_event sonypi_helpev[] = {
2899         { 0x3b, SONYPI_EVENT_HELP_PRESSED },
2900         { 0, 0 }
2901 };
2902
2903
2904 /* The set of possible lid events */
2905 static struct sonypi_event sonypi_lidev[] = {
2906         { 0x51, SONYPI_EVENT_LID_CLOSED },
2907         { 0x50, SONYPI_EVENT_LID_OPENED },
2908         { 0, 0 }
2909 };
2910
2911 /* The set of possible zoom events */
2912 static struct sonypi_event sonypi_zoomev[] = {
2913         { 0x39, SONYPI_EVENT_ZOOM_PRESSED },
2914         { 0x10, SONYPI_EVENT_ZOOM_IN_PRESSED },
2915         { 0x20, SONYPI_EVENT_ZOOM_OUT_PRESSED },
2916         { 0x04, SONYPI_EVENT_ZOOM_PRESSED },
2917         { 0, 0 }
2918 };
2919
2920 /* The set of possible thumbphrase events */
2921 static struct sonypi_event sonypi_thumbphraseev[] = {
2922         { 0x3a, SONYPI_EVENT_THUMBPHRASE_PRESSED },
2923         { 0, 0 }
2924 };
2925
2926 /* The set of possible motioneye camera events */
2927 static struct sonypi_event sonypi_meyeev[] = {
2928         { 0x00, SONYPI_EVENT_MEYE_FACE },
2929         { 0x01, SONYPI_EVENT_MEYE_OPPOSITE },
2930         { 0, 0 }
2931 };
2932
2933 /* The set of possible memorystick events */
2934 static struct sonypi_event sonypi_memorystickev[] = {
2935         { 0x53, SONYPI_EVENT_MEMORYSTICK_INSERT },
2936         { 0x54, SONYPI_EVENT_MEMORYSTICK_EJECT },
2937         { 0, 0 }
2938 };
2939
2940 /* The set of possible battery events */
2941 static struct sonypi_event sonypi_batteryev[] = {
2942         { 0x20, SONYPI_EVENT_BATTERY_INSERT },
2943         { 0x30, SONYPI_EVENT_BATTERY_REMOVE },
2944         { 0, 0 }
2945 };
2946
2947 /* The set of possible volume events */
2948 static struct sonypi_event sonypi_volumeev[] = {
2949         { 0x01, SONYPI_EVENT_VOLUME_INC_PRESSED },
2950         { 0x02, SONYPI_EVENT_VOLUME_DEC_PRESSED },
2951         { 0, 0 }
2952 };
2953
2954 /* The set of possible brightness events */
2955 static struct sonypi_event sonypi_brightnessev[] = {
2956         { 0x80, SONYPI_EVENT_BRIGHTNESS_PRESSED },
2957         { 0, 0 }
2958 };
2959
2960 static struct sonypi_eventtypes type1_events[] = {
2961         { 0, 0xffffffff, sonypi_releaseev },
2962         { 0x70, SONYPI_MEYE_MASK, sonypi_meyeev },
2963         { 0x30, SONYPI_LID_MASK, sonypi_lidev },
2964         { 0x60, SONYPI_CAPTURE_MASK, sonypi_captureev },
2965         { 0x10, SONYPI_JOGGER_MASK, sonypi_joggerev },
2966         { 0x20, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
2967         { 0x30, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
2968         { 0x40, SONYPI_PKEY_MASK, sonypi_pkeyev },
2969         { 0x30, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
2970         { 0x40, SONYPI_BATTERY_MASK, sonypi_batteryev },
2971         { 0 },
2972 };
2973 static struct sonypi_eventtypes type2_events[] = {
2974         { 0, 0xffffffff, sonypi_releaseev },
2975         { 0x38, SONYPI_LID_MASK, sonypi_lidev },
2976         { 0x11, SONYPI_JOGGER_MASK, sonypi_joggerev },
2977         { 0x61, SONYPI_CAPTURE_MASK, sonypi_captureev },
2978         { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
2979         { 0x31, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
2980         { 0x08, SONYPI_PKEY_MASK, sonypi_pkeyev },
2981         { 0x11, SONYPI_BACK_MASK, sonypi_backev },
2982         { 0x21, SONYPI_HELP_MASK, sonypi_helpev },
2983         { 0x21, SONYPI_ZOOM_MASK, sonypi_zoomev },
2984         { 0x20, SONYPI_THUMBPHRASE_MASK, sonypi_thumbphraseev },
2985         { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
2986         { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
2987         { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
2988         { 0 },
2989 };
2990 static struct sonypi_eventtypes type3_events[] = {
2991         { 0, 0xffffffff, sonypi_releaseev },
2992         { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
2993         { 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
2994         { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
2995         { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
2996         { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
2997         { 0x05, SONYPI_PKEY_MASK, sonypi_pkeyev },
2998         { 0x05, SONYPI_ZOOM_MASK, sonypi_zoomev },
2999         { 0x05, SONYPI_CAPTURE_MASK, sonypi_captureev },
3000         { 0x05, SONYPI_PKEY_MASK, sonypi_volumeev },
3001         { 0x05, SONYPI_PKEY_MASK, sonypi_brightnessev },
3002         { 0 },
3003 };
3004
3005 /* low level spic calls */
3006 #define ITERATIONS_LONG         10000
3007 #define ITERATIONS_SHORT        10
3008 #define wait_on_command(command, iterations) {                          \
3009         unsigned int n = iterations;                                    \
3010         while (--n && (command))                                        \
3011                 udelay(1);                                              \
3012         if (!n)                                                         \
3013                 dprintk("command failed at %s : %s (line %d)\n",        \
3014                                 __FILE__, __func__, __LINE__);  \
3015 }
3016
3017 static u8 sony_pic_call1(u8 dev)
3018 {
3019         u8 v1, v2;
3020
3021         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
3022                         ITERATIONS_LONG);
3023         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
3024         v1 = inb_p(spic_dev.cur_ioport->io1.minimum + 4);
3025         v2 = inb_p(spic_dev.cur_ioport->io1.minimum);
3026         dprintk("sony_pic_call1(0x%.2x): 0x%.4x\n", dev, (v2 << 8) | v1);
3027         return v2;
3028 }
3029
3030 static u8 sony_pic_call2(u8 dev, u8 fn)
3031 {
3032         u8 v1;
3033
3034         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
3035                         ITERATIONS_LONG);
3036         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
3037         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
3038                         ITERATIONS_LONG);
3039         outb(fn, spic_dev.cur_ioport->io1.minimum);
3040         v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
3041         dprintk("sony_pic_call2(0x%.2x - 0x%.2x): 0x%.4x\n", dev, fn, v1);
3042         return v1;
3043 }
3044
3045 static u8 sony_pic_call3(u8 dev, u8 fn, u8 v)
3046 {
3047         u8 v1;
3048
3049         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
3050         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
3051         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
3052         outb(fn, spic_dev.cur_ioport->io1.minimum);
3053         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
3054         outb(v, spic_dev.cur_ioport->io1.minimum);
3055         v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
3056         dprintk("sony_pic_call3(0x%.2x - 0x%.2x - 0x%.2x): 0x%.4x\n",
3057                         dev, fn, v, v1);
3058         return v1;
3059 }
3060
3061 /*
3062  * minidrivers for SPIC models
3063  */
3064 static int type3_handle_irq(const u8 data_mask, const u8 ev)
3065 {
3066         /*
3067          * 0x31 could mean we have to take some extra action and wait for
3068          * the next irq for some Type3 models, it will generate a new
3069          * irq and we can read new data from the device:
3070          *  - 0x5c and 0x5f requires 0xA0
3071          *  - 0x61 requires 0xB3
3072          */
3073         if (data_mask == 0x31) {
3074                 if (ev == 0x5c || ev == 0x5f)
3075                         sony_pic_call1(0xA0);
3076                 else if (ev == 0x61)
3077                         sony_pic_call1(0xB3);
3078                 return 0;
3079         }
3080         return 1;
3081 }
3082
3083 static void sony_pic_detect_device_type(struct sony_pic_dev *dev)
3084 {
3085         struct pci_dev *pcidev;
3086
3087         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3088                         PCI_DEVICE_ID_INTEL_82371AB_3, NULL);
3089         if (pcidev) {
3090                 dev->model = SONYPI_DEVICE_TYPE1;
3091                 dev->evport_offset = SONYPI_TYPE1_OFFSET;
3092                 dev->event_types = type1_events;
3093                 goto out;
3094         }
3095
3096         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3097                         PCI_DEVICE_ID_INTEL_ICH6_1, NULL);
3098         if (pcidev) {
3099                 dev->model = SONYPI_DEVICE_TYPE2;
3100                 dev->evport_offset = SONYPI_TYPE2_OFFSET;
3101                 dev->event_types = type2_events;
3102                 goto out;
3103         }
3104
3105         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3106                         PCI_DEVICE_ID_INTEL_ICH7_1, NULL);
3107         if (pcidev) {
3108                 dev->model = SONYPI_DEVICE_TYPE3;
3109                 dev->handle_irq = type3_handle_irq;
3110                 dev->evport_offset = SONYPI_TYPE3_OFFSET;
3111                 dev->event_types = type3_events;
3112                 goto out;
3113         }
3114
3115         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3116                         PCI_DEVICE_ID_INTEL_ICH8_4, NULL);
3117         if (pcidev) {
3118                 dev->model = SONYPI_DEVICE_TYPE3;
3119                 dev->handle_irq = type3_handle_irq;
3120                 dev->evport_offset = SONYPI_TYPE3_OFFSET;
3121                 dev->event_types = type3_events;
3122                 goto out;
3123         }
3124
3125         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3126                         PCI_DEVICE_ID_INTEL_ICH9_1, NULL);
3127         if (pcidev) {
3128                 dev->model = SONYPI_DEVICE_TYPE3;
3129                 dev->handle_irq = type3_handle_irq;
3130                 dev->evport_offset = SONYPI_TYPE3_OFFSET;
3131                 dev->event_types = type3_events;
3132                 goto out;
3133         }
3134
3135         /* default */
3136         dev->model = SONYPI_DEVICE_TYPE2;
3137         dev->evport_offset = SONYPI_TYPE2_OFFSET;
3138         dev->event_types = type2_events;
3139
3140 out:
3141         if (pcidev)
3142                 pci_dev_put(pcidev);
3143
3144         pr_info("detected Type%d model\n",
3145                 dev->model == SONYPI_DEVICE_TYPE1 ? 1 :
3146                 dev->model == SONYPI_DEVICE_TYPE2 ? 2 : 3);
3147 }
3148
3149 /* camera tests and poweron/poweroff */
3150 #define SONYPI_CAMERA_PICTURE           5
3151 #define SONYPI_CAMERA_CONTROL           0x10
3152
3153 #define SONYPI_CAMERA_BRIGHTNESS                0
3154 #define SONYPI_CAMERA_CONTRAST                  1
3155 #define SONYPI_CAMERA_HUE                       2
3156 #define SONYPI_CAMERA_COLOR                     3
3157 #define SONYPI_CAMERA_SHARPNESS                 4
3158
3159 #define SONYPI_CAMERA_EXPOSURE_MASK             0xC
3160 #define SONYPI_CAMERA_WHITE_BALANCE_MASK        0x3
3161 #define SONYPI_CAMERA_PICTURE_MODE_MASK         0x30
3162 #define SONYPI_CAMERA_MUTE_MASK                 0x40
3163
3164 /* the rest don't need a loop until not 0xff */
3165 #define SONYPI_CAMERA_AGC                       6
3166 #define SONYPI_CAMERA_AGC_MASK                  0x30
3167 #define SONYPI_CAMERA_SHUTTER_MASK              0x7
3168
3169 #define SONYPI_CAMERA_SHUTDOWN_REQUEST          7
3170 #define SONYPI_CAMERA_CONTROL                   0x10
3171
3172 #define SONYPI_CAMERA_STATUS                    7
3173 #define SONYPI_CAMERA_STATUS_READY              0x2
3174 #define SONYPI_CAMERA_STATUS_POSITION           0x4
3175
3176 #define SONYPI_DIRECTION_BACKWARDS              0x4
3177
3178 #define SONYPI_CAMERA_REVISION                  8
3179 #define SONYPI_CAMERA_ROMVERSION                9
3180
3181 static int __sony_pic_camera_ready(void)
3182 {
3183         u8 v;
3184
3185         v = sony_pic_call2(0x8f, SONYPI_CAMERA_STATUS);
3186         return (v != 0xff && (v & SONYPI_CAMERA_STATUS_READY));
3187 }
3188
3189 static int __sony_pic_camera_off(void)
3190 {
3191         if (!camera) {
3192                 pr_warn("camera control not enabled\n");
3193                 return -ENODEV;
3194         }
3195
3196         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE,
3197                                 SONYPI_CAMERA_MUTE_MASK),
3198                         ITERATIONS_SHORT);
3199
3200         if (spic_dev.camera_power) {
3201                 sony_pic_call2(0x91, 0);
3202                 spic_dev.camera_power = 0;
3203         }
3204         return 0;
3205 }
3206
3207 static int __sony_pic_camera_on(void)
3208 {
3209         int i, j, x;
3210
3211         if (!camera) {
3212                 pr_warn("camera control not enabled\n");
3213                 return -ENODEV;
3214         }
3215
3216         if (spic_dev.camera_power)
3217                 return 0;
3218
3219         for (j = 5; j > 0; j--) {
3220
3221                 for (x = 0; x < 100 && sony_pic_call2(0x91, 0x1); x++)
3222                         msleep(10);
3223                 sony_pic_call1(0x93);
3224
3225                 for (i = 400; i > 0; i--) {
3226                         if (__sony_pic_camera_ready())
3227                                 break;
3228                         msleep(10);
3229                 }
3230                 if (i)
3231                         break;
3232         }
3233
3234         if (j == 0) {
3235                 pr_warn("failed to power on camera\n");
3236                 return -ENODEV;
3237         }
3238
3239         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTROL,
3240                                 0x5a),
3241                         ITERATIONS_SHORT);
3242
3243         spic_dev.camera_power = 1;
3244         return 0;
3245 }
3246
3247 /* External camera command (exported to the motion eye v4l driver) */
3248 int sony_pic_camera_command(int command, u8 value)
3249 {
3250         if (!camera)
3251                 return -EIO;
3252
3253         mutex_lock(&spic_dev.lock);
3254
3255         switch (command) {
3256         case SONY_PIC_COMMAND_SETCAMERA:
3257                 if (value)
3258                         __sony_pic_camera_on();
3259                 else
3260                         __sony_pic_camera_off();
3261                 break;
3262         case SONY_PIC_COMMAND_SETCAMERABRIGHTNESS:
3263                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_BRIGHTNESS, value),
3264                                 ITERATIONS_SHORT);
3265                 break;
3266         case SONY_PIC_COMMAND_SETCAMERACONTRAST:
3267                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTRAST, value),
3268                                 ITERATIONS_SHORT);
3269                 break;
3270         case SONY_PIC_COMMAND_SETCAMERAHUE:
3271                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_HUE, value),
3272                                 ITERATIONS_SHORT);
3273                 break;
3274         case SONY_PIC_COMMAND_SETCAMERACOLOR:
3275                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_COLOR, value),
3276                                 ITERATIONS_SHORT);
3277                 break;
3278         case SONY_PIC_COMMAND_SETCAMERASHARPNESS:
3279                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_SHARPNESS, value),
3280                                 ITERATIONS_SHORT);
3281                 break;
3282         case SONY_PIC_COMMAND_SETCAMERAPICTURE:
3283                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE, value),
3284                                 ITERATIONS_SHORT);
3285                 break;
3286         case SONY_PIC_COMMAND_SETCAMERAAGC:
3287                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_AGC, value),
3288                                 ITERATIONS_SHORT);
3289                 break;
3290         default:
3291                 pr_err("sony_pic_camera_command invalid: %d\n", command);
3292                 break;
3293         }
3294         mutex_unlock(&spic_dev.lock);
3295         return 0;
3296 }
3297 EXPORT_SYMBOL(sony_pic_camera_command);
3298
3299 /* gprs/edge modem (SZ460N and SZ210P), thanks to Joshua Wise */
3300 static void __sony_pic_set_wwanpower(u8 state)
3301 {
3302         state = !!state;
3303         if (spic_dev.wwan_power == state)
3304                 return;
3305         sony_pic_call2(0xB0, state);
3306         sony_pic_call1(0x82);
3307         spic_dev.wwan_power = state;
3308 }
3309
3310 static ssize_t sony_pic_wwanpower_store(struct device *dev,
3311                 struct device_attribute *attr,
3312                 const char *buffer, size_t count)
3313 {
3314         unsigned long value;
3315         if (count > 31)
3316                 return -EINVAL;
3317
3318         if (kstrtoul(buffer, 10, &value))
3319                 return -EINVAL;
3320
3321         mutex_lock(&spic_dev.lock);
3322         __sony_pic_set_wwanpower(value);
3323         mutex_unlock(&spic_dev.lock);
3324
3325         return count;
3326 }
3327
3328 static ssize_t sony_pic_wwanpower_show(struct device *dev,
3329                 struct device_attribute *attr, char *buffer)
3330 {
3331         ssize_t count;
3332         mutex_lock(&spic_dev.lock);
3333         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.wwan_power);
3334         mutex_unlock(&spic_dev.lock);
3335         return count;
3336 }
3337
3338 /* bluetooth subsystem power state */
3339 static void __sony_pic_set_bluetoothpower(u8 state)
3340 {
3341         state = !!state;
3342         if (spic_dev.bluetooth_power == state)
3343                 return;
3344         sony_pic_call2(0x96, state);
3345         sony_pic_call1(0x82);
3346         spic_dev.bluetooth_power = state;
3347 }
3348
3349 static ssize_t sony_pic_bluetoothpower_store(struct device *dev,
3350                 struct device_attribute *attr,
3351                 const char *buffer, size_t count)
3352 {
3353         unsigned long value;
3354         if (count > 31)
3355                 return -EINVAL;
3356
3357         if (kstrtoul(buffer, 10, &value))
3358                 return -EINVAL;
3359
3360         mutex_lock(&spic_dev.lock);
3361         __sony_pic_set_bluetoothpower(value);
3362         mutex_unlock(&spic_dev.lock);
3363
3364         return count;
3365 }
3366
3367 static ssize_t sony_pic_bluetoothpower_show(struct device *dev,
3368                 struct device_attribute *attr, char *buffer)
3369 {
3370         ssize_t count = 0;
3371         mutex_lock(&spic_dev.lock);
3372         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.bluetooth_power);
3373         mutex_unlock(&spic_dev.lock);
3374         return count;
3375 }
3376
3377 /* fan speed */
3378 /* FAN0 information (reverse engineered from ACPI tables) */
3379 #define SONY_PIC_FAN0_STATUS    0x93
3380 static int sony_pic_set_fanspeed(unsigned long value)
3381 {
3382         return ec_write(SONY_PIC_FAN0_STATUS, value);
3383 }
3384
3385 static int sony_pic_get_fanspeed(u8 *value)
3386 {
3387         return ec_read(SONY_PIC_FAN0_STATUS, value);
3388 }
3389
3390 static ssize_t sony_pic_fanspeed_store(struct device *dev,
3391                 struct device_attribute *attr,
3392                 const char *buffer, size_t count)
3393 {
3394         unsigned long value;
3395         if (count > 31)
3396                 return -EINVAL;
3397
3398         if (kstrtoul(buffer, 10, &value))
3399                 return -EINVAL;
3400
3401         if (sony_pic_set_fanspeed(value))
3402                 return -EIO;
3403
3404         return count;
3405 }
3406
3407 static ssize_t sony_pic_fanspeed_show(struct device *dev,
3408                 struct device_attribute *attr, char *buffer)
3409 {
3410         u8 value = 0;
3411         if (sony_pic_get_fanspeed(&value))
3412                 return -EIO;
3413
3414         return snprintf(buffer, PAGE_SIZE, "%d\n", value);
3415 }
3416
3417 #define SPIC_ATTR(_name, _mode)                                 \
3418 struct device_attribute spic_attr_##_name = __ATTR(_name,       \
3419                 _mode, sony_pic_## _name ##_show,               \
3420                 sony_pic_## _name ##_store)
3421
3422 static SPIC_ATTR(bluetoothpower, 0644);
3423 static SPIC_ATTR(wwanpower, 0644);
3424 static SPIC_ATTR(fanspeed, 0644);
3425
3426 static struct attribute *spic_attributes[] = {
3427         &spic_attr_bluetoothpower.attr,
3428         &spic_attr_wwanpower.attr,
3429         &spic_attr_fanspeed.attr,
3430         NULL
3431 };
3432
3433 static struct attribute_group spic_attribute_group = {
3434         .attrs = spic_attributes
3435 };
3436
3437 /******** SONYPI compatibility **********/
3438 #ifdef CONFIG_SONYPI_COMPAT
3439
3440 /* battery / brightness / temperature  addresses */
3441 #define SONYPI_BAT_FLAGS        0x81
3442 #define SONYPI_LCD_LIGHT        0x96
3443 #define SONYPI_BAT1_PCTRM       0xa0
3444 #define SONYPI_BAT1_LEFT        0xa2
3445 #define SONYPI_BAT1_MAXRT       0xa4
3446 #define SONYPI_BAT2_PCTRM       0xa8
3447 #define SONYPI_BAT2_LEFT        0xaa
3448 #define SONYPI_BAT2_MAXRT       0xac
3449 #define SONYPI_BAT1_MAXTK       0xb0
3450 #define SONYPI_BAT1_FULL        0xb2
3451 #define SONYPI_BAT2_MAXTK       0xb8
3452 #define SONYPI_BAT2_FULL        0xba
3453 #define SONYPI_TEMP_STATUS      0xC1
3454
3455 struct sonypi_compat_s {
3456         struct fasync_struct    *fifo_async;
3457         struct kfifo            fifo;
3458         spinlock_t              fifo_lock;
3459         wait_queue_head_t       fifo_proc_list;
3460         atomic_t                open_count;
3461 };
3462 static struct sonypi_compat_s sonypi_compat = {
3463         .open_count = ATOMIC_INIT(0),
3464 };
3465
3466 static int sonypi_misc_fasync(int fd, struct file *filp, int on)
3467 {
3468         return fasync_helper(fd, filp, on, &sonypi_compat.fifo_async);
3469 }
3470
3471 static int sonypi_misc_release(struct inode *inode, struct file *file)
3472 {
3473         atomic_dec(&sonypi_compat.open_count);
3474         return 0;
3475 }
3476
3477 static int sonypi_misc_open(struct inode *inode, struct file *file)
3478 {
3479         /* Flush input queue on first open */
3480         unsigned long flags;
3481
3482         spin_lock_irqsave(&sonypi_compat.fifo_lock, flags);
3483
3484         if (atomic_inc_return(&sonypi_compat.open_count) == 1)
3485                 kfifo_reset(&sonypi_compat.fifo);
3486
3487         spin_unlock_irqrestore(&sonypi_compat.fifo_lock, flags);
3488
3489         return 0;
3490 }
3491
3492 static ssize_t sonypi_misc_read(struct file *file, char __user *buf,
3493                                 size_t count, loff_t *pos)
3494 {
3495         ssize_t ret;
3496         unsigned char c;
3497
3498         if ((kfifo_len(&sonypi_compat.fifo) == 0) &&
3499             (file->f_flags & O_NONBLOCK))
3500                 return -EAGAIN;
3501
3502         ret = wait_event_interruptible(sonypi_compat.fifo_proc_list,
3503                                        kfifo_len(&sonypi_compat.fifo) != 0);
3504         if (ret)
3505                 return ret;
3506
3507         while (ret < count &&
3508                (kfifo_out_locked(&sonypi_compat.fifo, &c, sizeof(c),
3509                           &sonypi_compat.fifo_lock) == sizeof(c))) {
3510                 if (put_user(c, buf++))
3511                         return -EFAULT;
3512                 ret++;
3513         }
3514
3515         if (ret > 0) {
3516                 struct inode *inode = file->f_path.dentry->d_inode;
3517                 inode->i_atime = current_fs_time(inode->i_sb);
3518         }
3519
3520         return ret;
3521 }
3522
3523 static unsigned int sonypi_misc_poll(struct file *file, poll_table *wait)
3524 {
3525         poll_wait(file, &sonypi_compat.fifo_proc_list, wait);
3526         if (kfifo_len(&sonypi_compat.fifo))
3527                 return POLLIN | POLLRDNORM;
3528         return 0;
3529 }
3530
3531 static int ec_read16(u8 addr, u16 *value)
3532 {
3533         u8 val_lb, val_hb;
3534         if (ec_read(addr, &val_lb))
3535                 return -1;
3536         if (ec_read(addr + 1, &val_hb))
3537                 return -1;
3538         *value = val_lb | (val_hb << 8);
3539         return 0;
3540 }
3541
3542 static long sonypi_misc_ioctl(struct file *fp, unsigned int cmd,
3543                                                         unsigned long arg)
3544 {
3545         int ret = 0;
3546         void __user *argp = (void __user *)arg;
3547         u8 val8;
3548         u16 val16;
3549         int value;
3550
3551         mutex_lock(&spic_dev.lock);
3552         switch (cmd) {
3553         case SONYPI_IOCGBRT:
3554                 if (sony_bl_props.dev == NULL) {
3555                         ret = -EIO;
3556                         break;
3557                 }
3558                 if (sony_nc_int_call(sony_nc_acpi_handle, "GBRT", NULL,
3559                                         &value)) {
3560                         ret = -EIO;
3561                         break;
3562                 }
3563                 val8 = ((value & 0xff) - 1) << 5;
3564                 if (copy_to_user(argp, &val8, sizeof(val8)))
3565                                 ret = -EFAULT;
3566                 break;
3567         case SONYPI_IOCSBRT:
3568                 if (sony_bl_props.dev == NULL) {
3569                         ret = -EIO;
3570                         break;
3571                 }
3572                 if (copy_from_user(&val8, argp, sizeof(val8))) {
3573                         ret = -EFAULT;
3574                         break;
3575                 }
3576                 value = (val8 >> 5) + 1;
3577                 if (sony_nc_int_call(sony_nc_acpi_handle, "SBRT", &value,
3578                                         NULL)) {
3579                         ret = -EIO;
3580                         break;
3581                 }
3582                 /* sync the backlight device status */
3583                 sony_bl_props.dev->props.brightness =
3584                     sony_backlight_get_brightness(sony_bl_props.dev);
3585                 break;
3586         case SONYPI_IOCGBAT1CAP:
3587                 if (ec_read16(SONYPI_BAT1_FULL, &val16)) {
3588                         ret = -EIO;
3589                         break;
3590                 }
3591                 if (copy_to_user(argp, &val16, sizeof(val16)))
3592                         ret = -EFAULT;
3593                 break;
3594         case SONYPI_IOCGBAT1REM:
3595                 if (ec_read16(SONYPI_BAT1_LEFT, &val16)) {
3596                         ret = -EIO;
3597                         break;
3598                 }
3599                 if (copy_to_user(argp, &val16, sizeof(val16)))
3600                         ret = -EFAULT;
3601                 break;
3602         case SONYPI_IOCGBAT2CAP:
3603                 if (ec_read16(SONYPI_BAT2_FULL, &val16)) {
3604                         ret = -EIO;
3605                         break;
3606                 }
3607                 if (copy_to_user(argp, &val16, sizeof(val16)))
3608                         ret = -EFAULT;
3609                 break;
3610         case SONYPI_IOCGBAT2REM:
3611                 if (ec_read16(SONYPI_BAT2_LEFT, &val16)) {
3612                         ret = -EIO;
3613                         break;
3614                 }
3615                 if (copy_to_user(argp, &val16, sizeof(val16)))
3616                         ret = -EFAULT;
3617                 break;
3618         case SONYPI_IOCGBATFLAGS:
3619                 if (ec_read(SONYPI_BAT_FLAGS, &val8)) {
3620                         ret = -EIO;
3621                         break;
3622                 }
3623                 val8 &= 0x07;
3624                 if (copy_to_user(argp, &val8, sizeof(val8)))
3625                         ret = -EFAULT;
3626                 break;
3627         case SONYPI_IOCGBLUE:
3628                 val8 = spic_dev.bluetooth_power;
3629                 if (copy_to_user(argp, &val8, sizeof(val8)))
3630                         ret = -EFAULT;
3631                 break;
3632         case SONYPI_IOCSBLUE:
3633                 if (copy_from_user(&val8, argp, sizeof(val8))) {
3634                         ret = -EFAULT;
3635                         break;
3636                 }
3637                 __sony_pic_set_bluetoothpower(val8);
3638                 break;
3639         /* FAN Controls */
3640         case SONYPI_IOCGFAN:
3641                 if (sony_pic_get_fanspeed(&val8)) {
3642                         ret = -EIO;
3643                         break;
3644                 }
3645                 if (copy_to_user(argp, &val8, sizeof(val8)))
3646                         ret = -EFAULT;
3647                 break;
3648         case SONYPI_IOCSFAN:
3649                 if (copy_from_user(&val8, argp, sizeof(val8))) {
3650                         ret = -EFAULT;
3651                         break;
3652                 }
3653                 if (sony_pic_set_fanspeed(val8))
3654                         ret = -EIO;
3655                 break;
3656         /* GET Temperature (useful under APM) */
3657         case SONYPI_IOCGTEMP:
3658                 if (ec_read(SONYPI_TEMP_STATUS, &val8)) {
3659                         ret = -EIO;
3660                         break;
3661                 }
3662                 if (copy_to_user(argp, &val8, sizeof(val8)))
3663                         ret = -EFAULT;
3664                 break;
3665         default:
3666                 ret = -EINVAL;
3667         }
3668         mutex_unlock(&spic_dev.lock);
3669         return ret;
3670 }
3671
3672 static const struct file_operations sonypi_misc_fops = {
3673         .owner          = THIS_MODULE,
3674         .read           = sonypi_misc_read,
3675         .poll           = sonypi_misc_poll,
3676         .open           = sonypi_misc_open,
3677         .release        = sonypi_misc_release,
3678         .fasync         = sonypi_misc_fasync,
3679         .unlocked_ioctl = sonypi_misc_ioctl,
3680         .llseek         = noop_llseek,
3681 };
3682
3683 static struct miscdevice sonypi_misc_device = {
3684         .minor          = MISC_DYNAMIC_MINOR,
3685         .name           = "sonypi",
3686         .fops           = &sonypi_misc_fops,
3687 };
3688
3689 static void sonypi_compat_report_event(u8 event)
3690 {
3691         kfifo_in_locked(&sonypi_compat.fifo, (unsigned char *)&event,
3692                         sizeof(event), &sonypi_compat.fifo_lock);
3693         kill_fasync(&sonypi_compat.fifo_async, SIGIO, POLL_IN);
3694         wake_up_interruptible(&sonypi_compat.fifo_proc_list);
3695 }
3696
3697 static int sonypi_compat_init(void)
3698 {
3699         int error;
3700
3701         spin_lock_init(&sonypi_compat.fifo_lock);
3702         error =
3703          kfifo_alloc(&sonypi_compat.fifo, SONY_LAPTOP_BUF_SIZE, GFP_KERNEL);
3704         if (error) {
3705                 pr_err("kfifo_alloc failed\n");
3706                 return error;
3707         }
3708
3709         init_waitqueue_head(&sonypi_compat.fifo_proc_list);
3710
3711         if (minor != -1)
3712                 sonypi_misc_device.minor = minor;
3713         error = misc_register(&sonypi_misc_device);
3714         if (error) {
3715                 pr_err("misc_register failed\n");
3716                 goto err_free_kfifo;
3717         }
3718         if (minor == -1)
3719                 pr_info("device allocated minor is %d\n",
3720                         sonypi_misc_device.minor);
3721
3722         return 0;
3723
3724 err_free_kfifo:
3725         kfifo_free(&sonypi_compat.fifo);
3726         return error;
3727 }
3728
3729 static void sonypi_compat_exit(void)
3730 {
3731         misc_deregister(&sonypi_misc_device);
3732         kfifo_free(&sonypi_compat.fifo);
3733 }
3734 #else
3735 static int sonypi_compat_init(void) { return 0; }
3736 static void sonypi_compat_exit(void) { }
3737 static void sonypi_compat_report_event(u8 event) { }
3738 #endif /* CONFIG_SONYPI_COMPAT */
3739
3740 /*
3741  * ACPI callbacks
3742  */
3743 static acpi_status
3744 sony_pic_read_possible_resource(struct acpi_resource *resource, void *context)
3745 {
3746         u32 i;
3747         struct sony_pic_dev *dev = (struct sony_pic_dev *)context;
3748
3749         switch (resource->type) {
3750         case ACPI_RESOURCE_TYPE_START_DEPENDENT:
3751                 {
3752                         /* start IO enumeration */
3753                         struct sony_pic_ioport *ioport = kzalloc(sizeof(*ioport), GFP_KERNEL);
3754                         if (!ioport)
3755                                 return AE_ERROR;
3756
3757                         list_add(&ioport->list, &dev->ioports);
3758                         return AE_OK;
3759                 }
3760
3761         case ACPI_RESOURCE_TYPE_END_DEPENDENT:
3762                 /* end IO enumeration */
3763                 return AE_OK;
3764
3765         case ACPI_RESOURCE_TYPE_IRQ:
3766                 {
3767                         struct acpi_resource_irq *p = &resource->data.irq;
3768                         struct sony_pic_irq *interrupt = NULL;
3769                         if (!p || !p->interrupt_count) {
3770                                 /*
3771                                  * IRQ descriptors may have no IRQ# bits set,
3772                                  * particularly those those w/ _STA disabled
3773                                  */
3774                                 dprintk("Blank IRQ resource\n");
3775                                 return AE_OK;
3776                         }
3777                         for (i = 0; i < p->interrupt_count; i++) {
3778                                 if (!p->interrupts[i]) {
3779                                         pr_warn("Invalid IRQ %d\n",
3780                                                 p->interrupts[i]);
3781                                         continue;
3782                                 }
3783                                 interrupt = kzalloc(sizeof(*interrupt),
3784                                                 GFP_KERNEL);
3785                                 if (!interrupt)
3786                                         return AE_ERROR;
3787
3788                                 list_add(&interrupt->list, &dev->interrupts);
3789                                 interrupt->irq.triggering = p->triggering;
3790                                 interrupt->irq.polarity = p->polarity;
3791                                 interrupt->irq.sharable = p->sharable;
3792                                 interrupt->irq.interrupt_count = 1;
3793                                 interrupt->irq.interrupts[0] = p->interrupts[i];
3794                         }
3795                         return AE_OK;
3796                 }
3797         case ACPI_RESOURCE_TYPE_IO:
3798                 {
3799                         struct acpi_resource_io *io = &resource->data.io;
3800                         struct sony_pic_ioport *ioport =
3801                                 list_first_entry(&dev->ioports, struct sony_pic_ioport, list);
3802                         if (!io) {
3803                                 dprintk("Blank IO resource\n");
3804                                 return AE_OK;
3805                         }
3806
3807                         if (!ioport->io1.minimum) {
3808                                 memcpy(&ioport->io1, io, sizeof(*io));
3809                                 dprintk("IO1 at 0x%.4x (0x%.2x)\n", ioport->io1.minimum,
3810                                                 ioport->io1.address_length);
3811                         }
3812                         else if (!ioport->io2.minimum) {
3813                                 memcpy(&ioport->io2, io, sizeof(*io));
3814                                 dprintk("IO2 at 0x%.4x (0x%.2x)\n", ioport->io2.minimum,
3815                                                 ioport->io2.address_length);
3816                         }
3817                         else {
3818                                 pr_err("Unknown SPIC Type, more than 2 IO Ports\n");
3819                                 return AE_ERROR;
3820                         }
3821                         return AE_OK;
3822                 }
3823         default:
3824                 dprintk("Resource %d isn't an IRQ nor an IO port\n",
3825                         resource->type);
3826
3827         case ACPI_RESOURCE_TYPE_END_TAG:
3828                 return AE_OK;
3829         }
3830         return AE_CTRL_TERMINATE;
3831 }
3832
3833 static int sony_pic_possible_resources(struct acpi_device *device)
3834 {
3835         int result = 0;
3836         acpi_status status = AE_OK;
3837
3838         if (!device)
3839                 return -EINVAL;
3840
3841         /* get device status */
3842         /* see acpi_pci_link_get_current acpi_pci_link_get_possible */
3843         dprintk("Evaluating _STA\n");
3844         result = acpi_bus_get_status(device);
3845         if (result) {
3846                 pr_warn("Unable to read status\n");
3847                 goto end;
3848         }
3849
3850         if (!device->status.enabled)
3851                 dprintk("Device disabled\n");
3852         else
3853                 dprintk("Device enabled\n");
3854
3855         /*
3856          * Query and parse 'method'
3857          */
3858         dprintk("Evaluating %s\n", METHOD_NAME__PRS);
3859         status = acpi_walk_resources(device->handle, METHOD_NAME__PRS,
3860                         sony_pic_read_possible_resource, &spic_dev);
3861         if (ACPI_FAILURE(status)) {
3862                 pr_warn("Failure evaluating %s\n", METHOD_NAME__PRS);
3863                 result = -ENODEV;
3864         }
3865 end:
3866         return result;
3867 }
3868
3869 /*
3870  *  Disable the spic device by calling its _DIS method
3871  */
3872 static int sony_pic_disable(struct acpi_device *device)
3873 {
3874         acpi_status ret = acpi_evaluate_object(device->handle, "_DIS", NULL,
3875                                                NULL);
3876
3877         if (ACPI_FAILURE(ret) && ret != AE_NOT_FOUND)
3878                 return -ENXIO;
3879
3880         dprintk("Device disabled\n");
3881         return 0;
3882 }
3883
3884
3885 /*
3886  *  Based on drivers/acpi/pci_link.c:acpi_pci_link_set
3887  *
3888  *  Call _SRS to set current resources
3889  */
3890 static int sony_pic_enable(struct acpi_device *device,
3891                 struct sony_pic_ioport *ioport, struct sony_pic_irq *irq)
3892 {
3893         acpi_status status;
3894         int result = 0;
3895         /* Type 1 resource layout is:
3896          *    IO
3897          *    IO
3898          *    IRQNoFlags
3899          *    End
3900          *
3901          * Type 2 and 3 resource layout is:
3902          *    IO
3903          *    IRQNoFlags
3904          *    End
3905          */
3906         struct {
3907                 struct acpi_resource res1;
3908                 struct acpi_resource res2;
3909                 struct acpi_resource res3;
3910                 struct acpi_resource res4;
3911         } *resource;
3912         struct acpi_buffer buffer = { 0, NULL };
3913
3914         if (!ioport || !irq)
3915                 return -EINVAL;
3916
3917         /* init acpi_buffer */
3918         resource = kzalloc(sizeof(*resource) + 1, GFP_KERNEL);
3919         if (!resource)
3920                 return -ENOMEM;
3921
3922         buffer.length = sizeof(*resource) + 1;
3923         buffer.pointer = resource;
3924
3925         /* setup Type 1 resources */
3926         if (spic_dev.model == SONYPI_DEVICE_TYPE1) {
3927
3928                 /* setup io resources */
3929                 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
3930                 resource->res1.length = sizeof(struct acpi_resource);
3931                 memcpy(&resource->res1.data.io, &ioport->io1,
3932                                 sizeof(struct acpi_resource_io));
3933
3934                 resource->res2.type = ACPI_RESOURCE_TYPE_IO;
3935                 resource->res2.length = sizeof(struct acpi_resource);
3936                 memcpy(&resource->res2.data.io, &ioport->io2,
3937                                 sizeof(struct acpi_resource_io));
3938
3939                 /* setup irq resource */
3940                 resource->res3.type = ACPI_RESOURCE_TYPE_IRQ;
3941                 resource->res3.length = sizeof(struct acpi_resource);
3942                 memcpy(&resource->res3.data.irq, &irq->irq,
3943                                 sizeof(struct acpi_resource_irq));
3944                 /* we requested a shared irq */
3945                 resource->res3.data.irq.sharable = ACPI_SHARED;
3946
3947                 resource->res4.type = ACPI_RESOURCE_TYPE_END_TAG;
3948
3949         }
3950         /* setup Type 2/3 resources */
3951         else {
3952                 /* setup io resource */
3953                 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
3954                 resource->res1.length = sizeof(struct acpi_resource);
3955                 memcpy(&resource->res1.data.io, &ioport->io1,
3956                                 sizeof(struct acpi_resource_io));
3957
3958                 /* setup irq resource */
3959                 resource->res2.type = ACPI_RESOURCE_TYPE_IRQ;
3960                 resource->res2.length = sizeof(struct acpi_resource);
3961                 memcpy(&resource->res2.data.irq, &irq->irq,
3962                                 sizeof(struct acpi_resource_irq));
3963                 /* we requested a shared irq */
3964                 resource->res2.data.irq.sharable = ACPI_SHARED;
3965
3966                 resource->res3.type = ACPI_RESOURCE_TYPE_END_TAG;
3967         }
3968
3969         /* Attempt to set the resource */
3970         dprintk("Evaluating _SRS\n");
3971         status = acpi_set_current_resources(device->handle, &buffer);
3972
3973         /* check for total failure */
3974         if (ACPI_FAILURE(status)) {
3975                 pr_err("Error evaluating _SRS\n");
3976                 result = -ENODEV;
3977                 goto end;
3978         }
3979
3980         /* Necessary device initializations calls (from sonypi) */
3981         sony_pic_call1(0x82);
3982         sony_pic_call2(0x81, 0xff);
3983         sony_pic_call1(compat ? 0x92 : 0x82);
3984
3985 end:
3986         kfree(resource);
3987         return result;
3988 }
3989
3990 /*****************
3991  *
3992  * ISR: some event is available
3993  *
3994  *****************/
3995 static irqreturn_t sony_pic_irq(int irq, void *dev_id)
3996 {
3997         int i, j;
3998         u8 ev = 0;
3999         u8 data_mask = 0;
4000         u8 device_event = 0;
4001
4002         struct sony_pic_dev *dev = (struct sony_pic_dev *) dev_id;
4003
4004         ev = inb_p(dev->cur_ioport->io1.minimum);
4005         if (dev->cur_ioport->io2.minimum)
4006                 data_mask = inb_p(dev->cur_ioport->io2.minimum);
4007         else
4008                 data_mask = inb_p(dev->cur_ioport->io1.minimum +
4009                                 dev->evport_offset);
4010
4011         dprintk("event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
4012                         ev, data_mask, dev->cur_ioport->io1.minimum,
4013                         dev->evport_offset);
4014
4015         if (ev == 0x00 || ev == 0xff)
4016                 return IRQ_HANDLED;
4017
4018         for (i = 0; dev->event_types[i].mask; i++) {
4019
4020                 if ((data_mask & dev->event_types[i].data) !=
4021                     dev->event_types[i].data)
4022                         continue;
4023
4024                 if (!(mask & dev->event_types[i].mask))
4025                         continue;
4026
4027                 for (j = 0; dev->event_types[i].events[j].event; j++) {
4028                         if (ev == dev->event_types[i].events[j].data) {
4029                                 device_event =
4030                                         dev->event_types[i].events[j].event;
4031                                 /* some events may require ignoring */
4032                                 if (!device_event)
4033                                         return IRQ_HANDLED;
4034                                 goto found;
4035                         }
4036                 }
4037         }
4038         /* Still not able to decode the event try to pass
4039          * it over to the minidriver
4040          */
4041         if (dev->handle_irq && dev->handle_irq(data_mask, ev) == 0)
4042                 return IRQ_HANDLED;
4043
4044         dprintk("unknown event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
4045                         ev, data_mask, dev->cur_ioport->io1.minimum,
4046                         dev->evport_offset);
4047         return IRQ_HANDLED;
4048
4049 found:
4050         sony_laptop_report_input_event(device_event);
4051         acpi_bus_generate_proc_event(dev->acpi_dev, 1, device_event);
4052         sonypi_compat_report_event(device_event);
4053         return IRQ_HANDLED;
4054 }
4055
4056 /*****************
4057  *
4058  *  ACPI driver
4059  *
4060  *****************/
4061 static int sony_pic_remove(struct acpi_device *device, int type)
4062 {
4063         struct sony_pic_ioport *io, *tmp_io;
4064         struct sony_pic_irq *irq, *tmp_irq;
4065
4066         if (sony_pic_disable(device)) {
4067                 pr_err("Couldn't disable device\n");
4068                 return -ENXIO;
4069         }
4070
4071         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
4072         release_region(spic_dev.cur_ioport->io1.minimum,
4073                         spic_dev.cur_ioport->io1.address_length);
4074         if (spic_dev.cur_ioport->io2.minimum)
4075                 release_region(spic_dev.cur_ioport->io2.minimum,
4076                                 spic_dev.cur_ioport->io2.address_length);
4077
4078         sonypi_compat_exit();
4079
4080         sony_laptop_remove_input();
4081
4082         /* pf attrs */
4083         sysfs_remove_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
4084         sony_pf_remove();
4085
4086         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
4087                 list_del(&io->list);
4088                 kfree(io);
4089         }
4090         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
4091                 list_del(&irq->list);
4092                 kfree(irq);
4093         }
4094         spic_dev.cur_ioport = NULL;
4095         spic_dev.cur_irq = NULL;
4096
4097         dprintk(SONY_PIC_DRIVER_NAME " removed.\n");
4098         return 0;
4099 }
4100
4101 static int sony_pic_add(struct acpi_device *device)
4102 {
4103         int result;
4104         struct sony_pic_ioport *io, *tmp_io;
4105         struct sony_pic_irq *irq, *tmp_irq;
4106
4107         pr_info("%s v%s\n", SONY_PIC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
4108
4109         spic_dev.acpi_dev = device;
4110         strcpy(acpi_device_class(device), "sony/hotkey");
4111         sony_pic_detect_device_type(&spic_dev);
4112         mutex_init(&spic_dev.lock);
4113
4114         /* read _PRS resources */
4115         result = sony_pic_possible_resources(device);
4116         if (result) {
4117                 pr_err("Unable to read possible resources\n");
4118                 goto err_free_resources;
4119         }
4120
4121         /* setup input devices and helper fifo */
4122         result = sony_laptop_setup_input(device);
4123         if (result) {
4124                 pr_err("Unable to create input devices\n");
4125                 goto err_free_resources;
4126         }
4127
4128         if (sonypi_compat_init())
4129                 goto err_remove_input;
4130
4131         /* request io port */
4132         list_for_each_entry_reverse(io, &spic_dev.ioports, list) {
4133                 if (request_region(io->io1.minimum, io->io1.address_length,
4134                                         "Sony Programmable I/O Device")) {
4135                         dprintk("I/O port1: 0x%.4x (0x%.4x) + 0x%.2x\n",
4136                                         io->io1.minimum, io->io1.maximum,
4137                                         io->io1.address_length);
4138                         /* Type 1 have 2 ioports */
4139                         if (io->io2.minimum) {
4140                                 if (request_region(io->io2.minimum,
4141                                                 io->io2.address_length,
4142                                                 "Sony Programmable I/O Device")) {
4143                                         dprintk("I/O port2: 0x%.4x (0x%.4x) + 0x%.2x\n",
4144                                                         io->io2.minimum, io->io2.maximum,
4145                                                         io->io2.address_length);
4146                                         spic_dev.cur_ioport = io;
4147                                         break;
4148                                 }
4149                                 else {
4150                                         dprintk("Unable to get I/O port2: "
4151                                                         "0x%.4x (0x%.4x) + 0x%.2x\n",
4152                                                         io->io2.minimum, io->io2.maximum,
4153                                                         io->io2.address_length);
4154                                         release_region(io->io1.minimum,
4155                                                         io->io1.address_length);
4156                                 }
4157                         }
4158                         else {
4159                                 spic_dev.cur_ioport = io;
4160                                 break;
4161                         }
4162                 }
4163         }
4164         if (!spic_dev.cur_ioport) {
4165                 pr_err("Failed to request_region\n");
4166                 result = -ENODEV;
4167                 goto err_remove_compat;
4168         }
4169
4170         /* request IRQ */
4171         list_for_each_entry_reverse(irq, &spic_dev.interrupts, list) {
4172                 if (!request_irq(irq->irq.interrupts[0], sony_pic_irq,
4173                                         0, "sony-laptop", &spic_dev)) {
4174                         dprintk("IRQ: %d - triggering: %d - "
4175                                         "polarity: %d - shr: %d\n",
4176                                         irq->irq.interrupts[0],
4177                                         irq->irq.triggering,
4178                                         irq->irq.polarity,
4179                                         irq->irq.sharable);
4180                         spic_dev.cur_irq = irq;
4181                         break;
4182                 }
4183         }
4184         if (!spic_dev.cur_irq) {
4185                 pr_err("Failed to request_irq\n");
4186                 result = -ENODEV;
4187                 goto err_release_region;
4188         }
4189
4190         /* set resource status _SRS */
4191         result = sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
4192         if (result) {
4193                 pr_err("Couldn't enable device\n");
4194                 goto err_free_irq;
4195         }
4196
4197         spic_dev.bluetooth_power = -1;
4198         /* create device attributes */
4199         result = sony_pf_add();
4200         if (result)
4201                 goto err_disable_device;
4202
4203         result = sysfs_create_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
4204         if (result)
4205                 goto err_remove_pf;
4206
4207         return 0;
4208
4209 err_remove_pf:
4210         sony_pf_remove();
4211
4212 err_disable_device:
4213         sony_pic_disable(device);
4214
4215 err_free_irq:
4216         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
4217
4218 err_release_region:
4219         release_region(spic_dev.cur_ioport->io1.minimum,
4220                         spic_dev.cur_ioport->io1.address_length);
4221         if (spic_dev.cur_ioport->io2.minimum)
4222                 release_region(spic_dev.cur_ioport->io2.minimum,
4223                                 spic_dev.cur_ioport->io2.address_length);
4224
4225 err_remove_compat:
4226         sonypi_compat_exit();
4227
4228 err_remove_input:
4229         sony_laptop_remove_input();
4230
4231 err_free_resources:
4232         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
4233                 list_del(&io->list);
4234                 kfree(io);
4235         }
4236         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
4237                 list_del(&irq->list);
4238                 kfree(irq);
4239         }
4240         spic_dev.cur_ioport = NULL;
4241         spic_dev.cur_irq = NULL;
4242
4243         return result;
4244 }
4245
4246 static int sony_pic_suspend(struct acpi_device *device, pm_message_t state)
4247 {
4248         if (sony_pic_disable(device))
4249                 return -ENXIO;
4250         return 0;
4251 }
4252
4253 static int sony_pic_resume(struct acpi_device *device)
4254 {
4255         sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
4256         return 0;
4257 }
4258
4259 static const struct acpi_device_id sony_pic_device_ids[] = {
4260         {SONY_PIC_HID, 0},
4261         {"", 0},
4262 };
4263
4264 static struct acpi_driver sony_pic_driver = {
4265         .name = SONY_PIC_DRIVER_NAME,
4266         .class = SONY_PIC_CLASS,
4267         .ids = sony_pic_device_ids,
4268         .owner = THIS_MODULE,
4269         .ops = {
4270                 .add = sony_pic_add,
4271                 .remove = sony_pic_remove,
4272                 .suspend = sony_pic_suspend,
4273                 .resume = sony_pic_resume,
4274                 },
4275 };
4276
4277 static struct dmi_system_id __initdata sonypi_dmi_table[] = {
4278         {
4279                 .ident = "Sony Vaio",
4280                 .matches = {
4281                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
4282                         DMI_MATCH(DMI_PRODUCT_NAME, "PCG-"),
4283                 },
4284         },
4285         {
4286                 .ident = "Sony Vaio",
4287                 .matches = {
4288                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
4289                         DMI_MATCH(DMI_PRODUCT_NAME, "VGN-"),
4290                 },
4291         },
4292         { }
4293 };
4294
4295 static int __init sony_laptop_init(void)
4296 {
4297         int result;
4298
4299         if (!no_spic && dmi_check_system(sonypi_dmi_table)) {
4300                 result = acpi_bus_register_driver(&sony_pic_driver);
4301                 if (result) {
4302                         pr_err("Unable to register SPIC driver\n");
4303                         goto out;
4304                 }
4305                 spic_drv_registered = 1;
4306         }
4307
4308         result = acpi_bus_register_driver(&sony_nc_driver);
4309         if (result) {
4310                 pr_err("Unable to register SNC driver\n");
4311                 goto out_unregister_pic;
4312         }
4313
4314         return 0;
4315
4316 out_unregister_pic:
4317         if (spic_drv_registered)
4318                 acpi_bus_unregister_driver(&sony_pic_driver);
4319 out:
4320         return result;
4321 }
4322
4323 static void __exit sony_laptop_exit(void)
4324 {
4325         acpi_bus_unregister_driver(&sony_nc_driver);
4326         if (spic_drv_registered)
4327                 acpi_bus_unregister_driver(&sony_pic_driver);
4328 }
4329
4330 module_init(sony_laptop_init);
4331 module_exit(sony_laptop_exit);