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 #ifdef CONFIG_PM_SLEEP
 144 static void sony_nc_kbd_backlight_resume(void);
 145 static void sony_nc_thermal_resume(void);
 146 #endif
 147 static int sony_nc_kbd_backlight_setup(struct platform_device *pd,
 148                 unsigned int handle);
 149 static void sony_nc_kbd_backlight_cleanup(struct platform_device *pd);
 150
 151 static int sony_nc_battery_care_setup(struct platform_device *pd,
 152                 unsigned int handle);
 153 static void sony_nc_battery_care_cleanup(struct platform_device *pd);
 154
 155 static int sony_nc_thermal_setup(struct platform_device *pd);
 156 static void sony_nc_thermal_cleanup(struct platform_device *pd);
 157
 158 static int sony_nc_lid_resume_setup(struct platform_device *pd);
 159 static void sony_nc_lid_resume_cleanup(struct platform_device *pd);
 160
 161 static int sony_nc_highspeed_charging_setup(struct platform_device *pd);
 162 static void sony_nc_highspeed_charging_cleanup(struct platform_device *pd);
 163
 164 static int sony_nc_touchpad_setup(struct platform_device *pd,
 165                                   unsigned int handle);
 166 static void sony_nc_touchpad_cleanup(struct platform_device *pd);
 167
 168 enum sony_nc_rfkill {
 169         SONY_WIFI,
 170         SONY_BLUETOOTH,
 171         SONY_WWAN,
 172         SONY_WIMAX,
 173         N_SONY_RFKILL,
 174 };
 175
 176 static int sony_rfkill_handle;
 177 static struct rfkill *sony_rfkill_devices[N_SONY_RFKILL];
 178 static int sony_rfkill_address[N_SONY_RFKILL] = {0x300, 0x500, 0x700, 0x900};
 179 static int sony_nc_rfkill_setup(struct acpi_device *device,
 180                 unsigned int handle);
 181 static void sony_nc_rfkill_cleanup(void);
 182 static void sony_nc_rfkill_update(void);
 183
 184 /*********** Input Devices ***********/
 185
 186 #define SONY_LAPTOP_BUF_SIZE    128
 187 struct sony_laptop_input_s {
 188         atomic_t                users;
 189         struct input_dev        *jog_dev;
 190         struct input_dev        *key_dev;
 191         struct kfifo            fifo;
 192         spinlock_t              fifo_lock;
 193         struct timer_list       release_key_timer;
 194 };
 195
 196 static struct sony_laptop_input_s sony_laptop_input = {
 197         .users = ATOMIC_INIT(0),
 198 };
 199
 200 struct sony_laptop_keypress {
 201         struct input_dev *dev;
 202         int key;
 203 };
 204
 205 /* Correspondance table between sonypi events
 206  * and input layer indexes in the keymap
 207  */
 208 static int sony_laptop_input_index[] = {
 209         -1,     /*  0 no event */
 210         -1,     /*  1 SONYPI_EVENT_JOGDIAL_DOWN */
 211         -1,     /*  2 SONYPI_EVENT_JOGDIAL_UP */
 212         -1,     /*  3 SONYPI_EVENT_JOGDIAL_DOWN_PRESSED */
 213         -1,     /*  4 SONYPI_EVENT_JOGDIAL_UP_PRESSED */
 214         -1,     /*  5 SONYPI_EVENT_JOGDIAL_PRESSED */
 215         -1,     /*  6 SONYPI_EVENT_JOGDIAL_RELEASED */
 216          0,     /*  7 SONYPI_EVENT_CAPTURE_PRESSED */
 217          1,     /*  8 SONYPI_EVENT_CAPTURE_RELEASED */
 218          2,     /*  9 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
 219          3,     /* 10 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
 220          4,     /* 11 SONYPI_EVENT_FNKEY_ESC */
 221          5,     /* 12 SONYPI_EVENT_FNKEY_F1 */
 222          6,     /* 13 SONYPI_EVENT_FNKEY_F2 */
 223          7,     /* 14 SONYPI_EVENT_FNKEY_F3 */
 224          8,     /* 15 SONYPI_EVENT_FNKEY_F4 */
 225          9,     /* 16 SONYPI_EVENT_FNKEY_F5 */
 226         10,     /* 17 SONYPI_EVENT_FNKEY_F6 */
 227         11,     /* 18 SONYPI_EVENT_FNKEY_F7 */
 228         12,     /* 19 SONYPI_EVENT_FNKEY_F8 */
 229         13,     /* 20 SONYPI_EVENT_FNKEY_F9 */
 230         14,     /* 21 SONYPI_EVENT_FNKEY_F10 */
 231         15,     /* 22 SONYPI_EVENT_FNKEY_F11 */
 232         16,     /* 23 SONYPI_EVENT_FNKEY_F12 */
 233         17,     /* 24 SONYPI_EVENT_FNKEY_1 */
 234         18,     /* 25 SONYPI_EVENT_FNKEY_2 */
 235         19,     /* 26 SONYPI_EVENT_FNKEY_D */
 236         20,     /* 27 SONYPI_EVENT_FNKEY_E */
 237         21,     /* 28 SONYPI_EVENT_FNKEY_F */
 238         22,     /* 29 SONYPI_EVENT_FNKEY_S */
 239         23,     /* 30 SONYPI_EVENT_FNKEY_B */
 240         24,     /* 31 SONYPI_EVENT_BLUETOOTH_PRESSED */
 241         25,     /* 32 SONYPI_EVENT_PKEY_P1 */
 242         26,     /* 33 SONYPI_EVENT_PKEY_P2 */
 243         27,     /* 34 SONYPI_EVENT_PKEY_P3 */
 244         28,     /* 35 SONYPI_EVENT_BACK_PRESSED */
 245         -1,     /* 36 SONYPI_EVENT_LID_CLOSED */
 246         -1,     /* 37 SONYPI_EVENT_LID_OPENED */
 247         29,     /* 38 SONYPI_EVENT_BLUETOOTH_ON */
 248         30,     /* 39 SONYPI_EVENT_BLUETOOTH_OFF */
 249         31,     /* 40 SONYPI_EVENT_HELP_PRESSED */
 250         32,     /* 41 SONYPI_EVENT_FNKEY_ONLY */
 251         33,     /* 42 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
 252         34,     /* 43 SONYPI_EVENT_JOGDIAL_FAST_UP */
 253         35,     /* 44 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
 254         36,     /* 45 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
 255         37,     /* 46 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
 256         38,     /* 47 SONYPI_EVENT_JOGDIAL_VFAST_UP */
 257         39,     /* 48 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
 258         40,     /* 49 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
 259         41,     /* 50 SONYPI_EVENT_ZOOM_PRESSED */
 260         42,     /* 51 SONYPI_EVENT_THUMBPHRASE_PRESSED */
 261         43,     /* 52 SONYPI_EVENT_MEYE_FACE */
 262         44,     /* 53 SONYPI_EVENT_MEYE_OPPOSITE */
 263         45,     /* 54 SONYPI_EVENT_MEMORYSTICK_INSERT */
 264         46,     /* 55 SONYPI_EVENT_MEMORYSTICK_EJECT */
 265         -1,     /* 56 SONYPI_EVENT_ANYBUTTON_RELEASED */
 266         -1,     /* 57 SONYPI_EVENT_BATTERY_INSERT */
 267         -1,     /* 58 SONYPI_EVENT_BATTERY_REMOVE */
 268         -1,     /* 59 SONYPI_EVENT_FNKEY_RELEASED */
 269         47,     /* 60 SONYPI_EVENT_WIRELESS_ON */
 270         48,     /* 61 SONYPI_EVENT_WIRELESS_OFF */
 271         49,     /* 62 SONYPI_EVENT_ZOOM_IN_PRESSED */
 272         50,     /* 63 SONYPI_EVENT_ZOOM_OUT_PRESSED */
 273         51,     /* 64 SONYPI_EVENT_CD_EJECT_PRESSED */
 274         52,     /* 65 SONYPI_EVENT_MODEKEY_PRESSED */
 275         53,     /* 66 SONYPI_EVENT_PKEY_P4 */
 276         54,     /* 67 SONYPI_EVENT_PKEY_P5 */
 277         55,     /* 68 SONYPI_EVENT_SETTINGKEY_PRESSED */
 278         56,     /* 69 SONYPI_EVENT_VOLUME_INC_PRESSED */
 279         57,     /* 70 SONYPI_EVENT_VOLUME_DEC_PRESSED */
 280         -1,     /* 71 SONYPI_EVENT_BRIGHTNESS_PRESSED */
 281         58,     /* 72 SONYPI_EVENT_MEDIA_PRESSED */
 282         59,     /* 72 SONYPI_EVENT_VENDOR_PRESSED */
 283 };
 284
 285 static int sony_laptop_input_keycode_map[] = {
 286         KEY_CAMERA,     /*  0 SONYPI_EVENT_CAPTURE_PRESSED */
 287         KEY_RESERVED,   /*  1 SONYPI_EVENT_CAPTURE_RELEASED */
 288         KEY_RESERVED,   /*  2 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
 289         KEY_RESERVED,   /*  3 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
 290         KEY_FN_ESC,     /*  4 SONYPI_EVENT_FNKEY_ESC */
 291         KEY_FN_F1,      /*  5 SONYPI_EVENT_FNKEY_F1 */
 292         KEY_FN_F2,      /*  6 SONYPI_EVENT_FNKEY_F2 */
 293         KEY_FN_F3,      /*  7 SONYPI_EVENT_FNKEY_F3 */
 294         KEY_FN_F4,      /*  8 SONYPI_EVENT_FNKEY_F4 */
 295         KEY_FN_F5,      /*  9 SONYPI_EVENT_FNKEY_F5 */
 296         KEY_FN_F6,      /* 10 SONYPI_EVENT_FNKEY_F6 */
 297         KEY_FN_F7,      /* 11 SONYPI_EVENT_FNKEY_F7 */
 298         KEY_FN_F8,      /* 12 SONYPI_EVENT_FNKEY_F8 */
 299         KEY_FN_F9,      /* 13 SONYPI_EVENT_FNKEY_F9 */
 300         KEY_FN_F10,     /* 14 SONYPI_EVENT_FNKEY_F10 */
 301         KEY_FN_F11,     /* 15 SONYPI_EVENT_FNKEY_F11 */
 302         KEY_FN_F12,     /* 16 SONYPI_EVENT_FNKEY_F12 */
 303         KEY_FN_F1,      /* 17 SONYPI_EVENT_FNKEY_1 */
 304         KEY_FN_F2,      /* 18 SONYPI_EVENT_FNKEY_2 */
 305         KEY_FN_D,       /* 19 SONYPI_EVENT_FNKEY_D */
 306         KEY_FN_E,       /* 20 SONYPI_EVENT_FNKEY_E */
 307         KEY_FN_F,       /* 21 SONYPI_EVENT_FNKEY_F */
 308         KEY_FN_S,       /* 22 SONYPI_EVENT_FNKEY_S */
 309         KEY_FN_B,       /* 23 SONYPI_EVENT_FNKEY_B */
 310         KEY_BLUETOOTH,  /* 24 SONYPI_EVENT_BLUETOOTH_PRESSED */
 311         KEY_PROG1,      /* 25 SONYPI_EVENT_PKEY_P1 */
 312         KEY_PROG2,      /* 26 SONYPI_EVENT_PKEY_P2 */
 313         KEY_PROG3,      /* 27 SONYPI_EVENT_PKEY_P3 */
 314         KEY_BACK,       /* 28 SONYPI_EVENT_BACK_PRESSED */
 315         KEY_BLUETOOTH,  /* 29 SONYPI_EVENT_BLUETOOTH_ON */
 316         KEY_BLUETOOTH,  /* 30 SONYPI_EVENT_BLUETOOTH_OFF */
 317         KEY_HELP,       /* 31 SONYPI_EVENT_HELP_PRESSED */
 318         KEY_FN,         /* 32 SONYPI_EVENT_FNKEY_ONLY */
 319         KEY_RESERVED,   /* 33 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
 320         KEY_RESERVED,   /* 34 SONYPI_EVENT_JOGDIAL_FAST_UP */
 321         KEY_RESERVED,   /* 35 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
 322         KEY_RESERVED,   /* 36 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
 323         KEY_RESERVED,   /* 37 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
 324         KEY_RESERVED,   /* 38 SONYPI_EVENT_JOGDIAL_VFAST_UP */
 325         KEY_RESERVED,   /* 39 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
 326         KEY_RESERVED,   /* 40 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
 327         KEY_ZOOM,       /* 41 SONYPI_EVENT_ZOOM_PRESSED */
 328         BTN_THUMB,      /* 42 SONYPI_EVENT_THUMBPHRASE_PRESSED */
 329         KEY_RESERVED,   /* 43 SONYPI_EVENT_MEYE_FACE */
 330         KEY_RESERVED,   /* 44 SONYPI_EVENT_MEYE_OPPOSITE */
 331         KEY_RESERVED,   /* 45 SONYPI_EVENT_MEMORYSTICK_INSERT */
 332         KEY_RESERVED,   /* 46 SONYPI_EVENT_MEMORYSTICK_EJECT */
 333         KEY_WLAN,       /* 47 SONYPI_EVENT_WIRELESS_ON */
 334         KEY_WLAN,       /* 48 SONYPI_EVENT_WIRELESS_OFF */
 335         KEY_ZOOMIN,     /* 49 SONYPI_EVENT_ZOOM_IN_PRESSED */
 336         KEY_ZOOMOUT,    /* 50 SONYPI_EVENT_ZOOM_OUT_PRESSED */
 337         KEY_EJECTCD,    /* 51 SONYPI_EVENT_CD_EJECT_PRESSED */
 338         KEY_F13,        /* 52 SONYPI_EVENT_MODEKEY_PRESSED */
 339         KEY_PROG4,      /* 53 SONYPI_EVENT_PKEY_P4 */
 340         KEY_F14,        /* 54 SONYPI_EVENT_PKEY_P5 */
 341         KEY_F15,        /* 55 SONYPI_EVENT_SETTINGKEY_PRESSED */
 342         KEY_VOLUMEUP,   /* 56 SONYPI_EVENT_VOLUME_INC_PRESSED */
 343         KEY_VOLUMEDOWN, /* 57 SONYPI_EVENT_VOLUME_DEC_PRESSED */
 344         KEY_MEDIA,      /* 58 SONYPI_EVENT_MEDIA_PRESSED */
 345         KEY_VENDOR,     /* 59 SONYPI_EVENT_VENDOR_PRESSED */
 346 };
 347
 348 /* release buttons after a short delay if pressed */
 349 static void do_sony_laptop_release_key(unsigned long unused)
 350 {
 351         struct sony_laptop_keypress kp;
 352         unsigned long flags;
 353
 354         spin_lock_irqsave(&sony_laptop_input.fifo_lock, flags);
 355
 356         if (kfifo_out(&sony_laptop_input.fifo,
 357                       (unsigned char *)&kp, sizeof(kp)) == sizeof(kp)) {
 358                 input_report_key(kp.dev, kp.key, 0);
 359                 input_sync(kp.dev);
 360         }
 361
 362         /* If there is something in the fifo schedule next release. */
 363         if (kfifo_len(&sony_laptop_input.fifo) != 0)
 364                 mod_timer(&sony_laptop_input.release_key_timer,
 365                           jiffies + msecs_to_jiffies(10));
 366
 367         spin_unlock_irqrestore(&sony_laptop_input.fifo_lock, flags);
 368 }
 369
 370 /* forward event to the input subsystem */
 371 static void sony_laptop_report_input_event(u8 event)
 372 {
 373         struct input_dev *jog_dev = sony_laptop_input.jog_dev;
 374         struct input_dev *key_dev = sony_laptop_input.key_dev;
 375         struct sony_laptop_keypress kp = { NULL };
 376         int scancode = -1;
 377
 378         if (event == SONYPI_EVENT_FNKEY_RELEASED ||
 379                         event == SONYPI_EVENT_ANYBUTTON_RELEASED) {
 380                 /* Nothing, not all VAIOs generate this event */
 381                 return;
 382         }
 383
 384         /* report events */
 385         switch (event) {
 386         /* jog_dev events */
 387         case SONYPI_EVENT_JOGDIAL_UP:
 388         case SONYPI_EVENT_JOGDIAL_UP_PRESSED:
 389                 input_report_rel(jog_dev, REL_WHEEL, 1);
 390                 input_sync(jog_dev);
 391                 return;
 392
 393         case SONYPI_EVENT_JOGDIAL_DOWN:
 394         case SONYPI_EVENT_JOGDIAL_DOWN_PRESSED:
 395                 input_report_rel(jog_dev, REL_WHEEL, -1);
 396                 input_sync(jog_dev);
 397                 return;
 398
 399         /* key_dev events */
 400         case SONYPI_EVENT_JOGDIAL_PRESSED:
 401                 kp.key = BTN_MIDDLE;
 402                 kp.dev = jog_dev;
 403                 break;
 404
 405         default:
 406                 if (event >= ARRAY_SIZE(sony_laptop_input_index)) {
 407                         dprintk("sony_laptop_report_input_event, event not known: %d\n", event);
 408                         break;
 409                 }
 410                 if ((scancode = sony_laptop_input_index[event]) != -1) {
 411                         kp.key = sony_laptop_input_keycode_map[scancode];
 412                         if (kp.key != KEY_UNKNOWN)
 413                                 kp.dev = key_dev;
 414                 }
 415                 break;
 416         }
 417
 418         if (kp.dev) {
 419                 /* if we have a scancode we emit it so we can always
 420                     remap the key */
 421                 if (scancode != -1)
 422                         input_event(kp.dev, EV_MSC, MSC_SCAN, scancode);
 423                 input_report_key(kp.dev, kp.key, 1);
 424                 input_sync(kp.dev);
 425
 426                 /* schedule key release */
 427                 kfifo_in_locked(&sony_laptop_input.fifo,
 428                                 (unsigned char *)&kp, sizeof(kp),
 429                                 &sony_laptop_input.fifo_lock);
 430                 mod_timer(&sony_laptop_input.release_key_timer,
 431                           jiffies + msecs_to_jiffies(10));
 432         } else
 433                 dprintk("unknown input event %.2x\n", event);
 434 }
 435
 436 static int sony_laptop_setup_input(struct acpi_device *acpi_device)
 437 {
 438         struct input_dev *jog_dev;
 439         struct input_dev *key_dev;
 440         int i;
 441         int error;
 442
 443         /* don't run again if already initialized */
 444         if (atomic_add_return(1, &sony_laptop_input.users) > 1)
 445                 return 0;
 446
 447         /* kfifo */
 448         spin_lock_init(&sony_laptop_input.fifo_lock);
 449         error = kfifo_alloc(&sony_laptop_input.fifo,
 450                             SONY_LAPTOP_BUF_SIZE, GFP_KERNEL);
 451         if (error) {
 452                 pr_err("kfifo_alloc failed\n");
 453                 goto err_dec_users;
 454         }
 455
 456         setup_timer(&sony_laptop_input.release_key_timer,
 457                     do_sony_laptop_release_key, 0);
 458
 459         /* input keys */
 460         key_dev = input_allocate_device();
 461         if (!key_dev) {
 462                 error = -ENOMEM;
 463                 goto err_free_kfifo;
 464         }
 465
 466         key_dev->name = "Sony Vaio Keys";
 467         key_dev->id.bustype = BUS_ISA;
 468         key_dev->id.vendor = PCI_VENDOR_ID_SONY;
 469         key_dev->dev.parent = &acpi_device->dev;
 470
 471         /* Initialize the Input Drivers: special keys */
 472         input_set_capability(key_dev, EV_MSC, MSC_SCAN);
 473
 474         __set_bit(EV_KEY, key_dev->evbit);
 475         key_dev->keycodesize = sizeof(sony_laptop_input_keycode_map[0]);
 476         key_dev->keycodemax = ARRAY_SIZE(sony_laptop_input_keycode_map);
 477         key_dev->keycode = &sony_laptop_input_keycode_map;
 478         for (i = 0; i < ARRAY_SIZE(sony_laptop_input_keycode_map); i++)
 479                 __set_bit(sony_laptop_input_keycode_map[i], key_dev->keybit);
 480         __clear_bit(KEY_RESERVED, key_dev->keybit);
 481
 482         error = input_register_device(key_dev);
 483         if (error)
 484                 goto err_free_keydev;
 485
 486         sony_laptop_input.key_dev = key_dev;
 487
 488         /* jogdial */
 489         jog_dev = input_allocate_device();
 490         if (!jog_dev) {
 491                 error = -ENOMEM;
 492                 goto err_unregister_keydev;
 493         }
 494
 495         jog_dev->name = "Sony Vaio Jogdial";
 496         jog_dev->id.bustype = BUS_ISA;
 497         jog_dev->id.vendor = PCI_VENDOR_ID_SONY;
 498         jog_dev->dev.parent = &acpi_device->dev;
 499
 500         input_set_capability(jog_dev, EV_KEY, BTN_MIDDLE);
 501         input_set_capability(jog_dev, EV_REL, REL_WHEEL);
 502
 503         error = input_register_device(jog_dev);
 504         if (error)
 505                 goto err_free_jogdev;
 506
 507         sony_laptop_input.jog_dev = jog_dev;
 508
 509         return 0;
 510
 511 err_free_jogdev:
 512         input_free_device(jog_dev);
 513
 514 err_unregister_keydev:
 515         input_unregister_device(key_dev);
 516         /* to avoid kref underflow below at input_free_device */
 517         key_dev = NULL;
 518
 519 err_free_keydev:
 520         input_free_device(key_dev);
 521
 522 err_free_kfifo:
 523         kfifo_free(&sony_laptop_input.fifo);
 524
 525 err_dec_users:
 526         atomic_dec(&sony_laptop_input.users);
 527         return error;
 528 }
 529
 530 static void sony_laptop_remove_input(void)
 531 {
 532         struct sony_laptop_keypress kp = { NULL };
 533
 534         /* Cleanup only after the last user has gone */
 535         if (!atomic_dec_and_test(&sony_laptop_input.users))
 536                 return;
 537
 538         del_timer_sync(&sony_laptop_input.release_key_timer);
 539
 540         /*
 541          * Generate key-up events for remaining keys. Note that we don't
 542          * need locking since nobody is adding new events to the kfifo.
 543          */
 544         while (kfifo_out(&sony_laptop_input.fifo,
 545                          (unsigned char *)&kp, sizeof(kp)) == sizeof(kp)) {
 546                 input_report_key(kp.dev, kp.key, 0);
 547                 input_sync(kp.dev);
 548         }
 549
 550         /* destroy input devs */
 551         input_unregister_device(sony_laptop_input.key_dev);
 552         sony_laptop_input.key_dev = NULL;
 553
 554         if (sony_laptop_input.jog_dev) {
 555                 input_unregister_device(sony_laptop_input.jog_dev);
 556                 sony_laptop_input.jog_dev = NULL;
 557         }
 558
 559         kfifo_free(&sony_laptop_input.fifo);
 560 }
 561
 562 /*********** Platform Device ***********/
 563
 564 static atomic_t sony_pf_users = ATOMIC_INIT(0);
 565 static struct platform_driver sony_pf_driver = {
 566         .driver = {
 567                    .name = "sony-laptop",
 568                    .owner = THIS_MODULE,
 569                    }
 570 };
 571 static struct platform_device *sony_pf_device;
 572
 573 static int sony_pf_add(void)
 574 {
 575         int ret = 0;
 576
 577         /* don't run again if already initialized */
 578         if (atomic_add_return(1, &sony_pf_users) > 1)
 579                 return 0;
 580
 581         ret = platform_driver_register(&sony_pf_driver);
 582         if (ret)
 583                 goto out;
 584
 585         sony_pf_device = platform_device_alloc("sony-laptop", -1);
 586         if (!sony_pf_device) {
 587                 ret = -ENOMEM;
 588                 goto out_platform_registered;
 589         }
 590
 591         ret = platform_device_add(sony_pf_device);
 592         if (ret)
 593                 goto out_platform_alloced;
 594
 595         return 0;
 596
 597       out_platform_alloced:
 598         platform_device_put(sony_pf_device);
 599         sony_pf_device = NULL;
 600       out_platform_registered:
 601         platform_driver_unregister(&sony_pf_driver);
 602       out:
 603         atomic_dec(&sony_pf_users);
 604         return ret;
 605 }
 606
 607 static void sony_pf_remove(void)
 608 {
 609         /* deregister only after the last user has gone */
 610         if (!atomic_dec_and_test(&sony_pf_users))
 611                 return;
 612
 613         platform_device_unregister(sony_pf_device);
 614         platform_driver_unregister(&sony_pf_driver);
 615 }
 616
 617 /*********** SNC (SNY5001) Device ***********/
 618
 619 /* the device uses 1-based values, while the backlight subsystem uses
 620    0-based values */
 621 #define SONY_MAX_BRIGHTNESS     8
 622
 623 #define SNC_VALIDATE_IN         0
 624 #define SNC_VALIDATE_OUT        1
 625
 626 static ssize_t sony_nc_sysfs_show(struct device *, struct device_attribute *,
 627                               char *);
 628 static ssize_t sony_nc_sysfs_store(struct device *, struct device_attribute *,
 629                                const char *, size_t);
 630 static int boolean_validate(const int, const int);
 631 static int brightness_default_validate(const int, const int);
 632
 633 struct sony_nc_value {
 634         char *name;             /* name of the entry */
 635         char **acpiget;         /* names of the ACPI get function */
 636         char **acpiset;         /* names of the ACPI set function */
 637         int (*validate)(const int, const int);  /* input/output validation */
 638         int value;              /* current setting */
 639         int valid;              /* Has ever been set */
 640         int debug;              /* active only in debug mode ? */
 641         struct device_attribute devattr;        /* sysfs attribute */
 642 };
 643
 644 #define SNC_HANDLE_NAMES(_name, _values...) \
 645         static char *snc_##_name[] = { _values, NULL }
 646
 647 #define SNC_HANDLE(_name, _getters, _setters, _validate, _debug) \
 648         { \
 649                 .name           = __stringify(_name), \
 650                 .acpiget        = _getters, \
 651                 .acpiset        = _setters, \
 652                 .validate       = _validate, \
 653                 .debug          = _debug, \
 654                 .devattr        = __ATTR(_name, 0, sony_nc_sysfs_show, sony_nc_sysfs_store), \
 655         }
 656
 657 #define SNC_HANDLE_NULL { .name = NULL }
 658
 659 SNC_HANDLE_NAMES(fnkey_get, "GHKE");
 660
 661 SNC_HANDLE_NAMES(brightness_def_get, "GPBR");
 662 SNC_HANDLE_NAMES(brightness_def_set, "SPBR");
 663
 664 SNC_HANDLE_NAMES(cdpower_get, "GCDP");
 665 SNC_HANDLE_NAMES(cdpower_set, "SCDP", "CDPW");
 666
 667 SNC_HANDLE_NAMES(audiopower_get, "GAZP");
 668 SNC_HANDLE_NAMES(audiopower_set, "AZPW");
 669
 670 SNC_HANDLE_NAMES(lanpower_get, "GLNP");
 671 SNC_HANDLE_NAMES(lanpower_set, "LNPW");
 672
 673 SNC_HANDLE_NAMES(lidstate_get, "GLID");
 674
 675 SNC_HANDLE_NAMES(indicatorlamp_get, "GILS");
 676 SNC_HANDLE_NAMES(indicatorlamp_set, "SILS");
 677
 678 SNC_HANDLE_NAMES(gainbass_get, "GMGB");
 679 SNC_HANDLE_NAMES(gainbass_set, "CMGB");
 680
 681 SNC_HANDLE_NAMES(PID_get, "GPID");
 682
 683 SNC_HANDLE_NAMES(CTR_get, "GCTR");
 684 SNC_HANDLE_NAMES(CTR_set, "SCTR");
 685
 686 SNC_HANDLE_NAMES(PCR_get, "GPCR");
 687 SNC_HANDLE_NAMES(PCR_set, "SPCR");
 688
 689 SNC_HANDLE_NAMES(CMI_get, "GCMI");
 690 SNC_HANDLE_NAMES(CMI_set, "SCMI");
 691
 692 static struct sony_nc_value sony_nc_values[] = {
 693         SNC_HANDLE(brightness_default, snc_brightness_def_get,
 694                         snc_brightness_def_set, brightness_default_validate, 0),
 695         SNC_HANDLE(fnkey, snc_fnkey_get, NULL, NULL, 0),
 696         SNC_HANDLE(cdpower, snc_cdpower_get, snc_cdpower_set, boolean_validate, 0),
 697         SNC_HANDLE(audiopower, snc_audiopower_get, snc_audiopower_set,
 698                         boolean_validate, 0),
 699         SNC_HANDLE(lanpower, snc_lanpower_get, snc_lanpower_set,
 700                         boolean_validate, 1),
 701         SNC_HANDLE(lidstate, snc_lidstate_get, NULL,
 702                         boolean_validate, 0),
 703         SNC_HANDLE(indicatorlamp, snc_indicatorlamp_get, snc_indicatorlamp_set,
 704                         boolean_validate, 0),
 705         SNC_HANDLE(gainbass, snc_gainbass_get, snc_gainbass_set,
 706                         boolean_validate, 0),
 707         /* unknown methods */
 708         SNC_HANDLE(PID, snc_PID_get, NULL, NULL, 1),
 709         SNC_HANDLE(CTR, snc_CTR_get, snc_CTR_set, NULL, 1),
 710         SNC_HANDLE(PCR, snc_PCR_get, snc_PCR_set, NULL, 1),
 711         SNC_HANDLE(CMI, snc_CMI_get, snc_CMI_set, NULL, 1),
 712         SNC_HANDLE_NULL
 713 };
 714
 715 static acpi_handle sony_nc_acpi_handle;
 716 static struct acpi_device *sony_nc_acpi_device = NULL;
 717
 718 /*
 719  * acpi_evaluate_object wrappers
 720  * all useful calls into SNC methods take one or zero parameters and return
 721  * integers or arrays.
 722  */
 723 static union acpi_object *__call_snc_method(acpi_handle handle, char *method,
 724                 u64 *value)
 725 {
 726         union acpi_object *result = NULL;
 727         struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
 728         acpi_status status;
 729
 730         if (value) {
 731                 struct acpi_object_list params;
 732                 union acpi_object in;
 733                 in.type = ACPI_TYPE_INTEGER;
 734                 in.integer.value = *value;
 735                 params.count = 1;
 736                 params.pointer = &in;
 737                 status = acpi_evaluate_object(handle, method, &params, &output);
 738                 dprintk("__call_snc_method: [%s:0x%.8x%.8x]\n", method,
 739                                 (unsigned int)(*value >> 32),
 740                                 (unsigned int)*value & 0xffffffff);
 741         } else {
 742                 status = acpi_evaluate_object(handle, method, NULL, &output);
 743                 dprintk("__call_snc_method: [%s]\n", method);
 744         }
 745
 746         if (ACPI_FAILURE(status)) {
 747                 pr_err("Failed to evaluate [%s]\n", method);
 748                 return NULL;
 749         }
 750
 751         result = (union acpi_object *) output.pointer;
 752         if (!result)
 753                 dprintk("No return object [%s]\n", method);
 754
 755         return result;
 756 }
 757
 758 static int sony_nc_int_call(acpi_handle handle, char *name, int *value,
 759                 int *result)
 760 {
 761         union acpi_object *object = NULL;
 762         if (value) {
 763                 u64 v = *value;
 764                 object = __call_snc_method(handle, name, &v);
 765         } else
 766                 object = __call_snc_method(handle, name, NULL);
 767
 768         if (!object)
 769                 return -EINVAL;
 770
 771         if (object->type != ACPI_TYPE_INTEGER) {
 772                 pr_warn("Invalid acpi_object: expected 0x%x got 0x%x\n",
 773                                 ACPI_TYPE_INTEGER, object->type);
 774                 kfree(object);
 775                 return -EINVAL;
 776         }
 777
 778         if (result)
 779                 *result = object->integer.value;
 780
 781         kfree(object);
 782         return 0;
 783 }
 784
 785 #define MIN(a, b)       (a > b ? b : a)
 786 static int sony_nc_buffer_call(acpi_handle handle, char *name, u64 *value,
 787                 void *buffer, size_t buflen)
 788 {
 789         int ret = 0;
 790         size_t len = len;
 791         union acpi_object *object = __call_snc_method(handle, name, value);
 792
 793         if (!object)
 794                 return -EINVAL;
 795
 796         if (object->type == ACPI_TYPE_BUFFER) {
 797                 len = MIN(buflen, object->buffer.length);
 798                 memcpy(buffer, object->buffer.pointer, len);
 799
 800         } else if (object->type == ACPI_TYPE_INTEGER) {
 801                 len = MIN(buflen, sizeof(object->integer.value));
 802                 memcpy(buffer, &object->integer.value, len);
 803
 804         } else {
 805                 pr_warn("Invalid acpi_object: expected 0x%x got 0x%x\n",
 806                                 ACPI_TYPE_BUFFER, object->type);
 807                 ret = -EINVAL;
 808         }
 809
 810         kfree(object);
 811         return ret;
 812 }
 813
 814 struct sony_nc_handles {
 815         u16 cap[0x10];
 816         struct device_attribute devattr;
 817 };
 818
 819 static struct sony_nc_handles *handles;
 820
 821 static ssize_t sony_nc_handles_show(struct device *dev,
 822                 struct device_attribute *attr, char *buffer)
 823 {
 824         ssize_t len = 0;
 825         int i;
 826
 827         for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
 828                 len += snprintf(buffer + len, PAGE_SIZE - len, "0x%.4x ",
 829                                 handles->cap[i]);
 830         }
 831         len += snprintf(buffer + len, PAGE_SIZE - len, "\n");
 832
 833         return len;
 834 }
 835
 836 static int sony_nc_handles_setup(struct platform_device *pd)
 837 {
 838         int i, r, result, arg;
 839
 840         handles = kzalloc(sizeof(*handles), GFP_KERNEL);
 841         if (!handles)
 842                 return -ENOMEM;
 843
 844         for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
 845                 arg = i + 0x20;
 846                 r = sony_nc_int_call(sony_nc_acpi_handle, "SN00", &arg,
 847                                         &result);
 848                 if (!r) {
 849                         dprintk("caching handle 0x%.4x (offset: 0x%.2x)\n",
 850                                         result, i);
 851                         handles->cap[i] = result;
 852                 }
 853         }
 854
 855         if (debug) {
 856                 sysfs_attr_init(&handles->devattr.attr);
 857                 handles->devattr.attr.name = "handles";
 858                 handles->devattr.attr.mode = S_IRUGO;
 859                 handles->devattr.show = sony_nc_handles_show;
 860
 861                 /* allow reading capabilities via sysfs */
 862                 if (device_create_file(&pd->dev, &handles->devattr)) {
 863                         kfree(handles);
 864                         handles = NULL;
 865                         return -1;
 866                 }
 867         }
 868
 869         return 0;
 870 }
 871
 872 static int sony_nc_handles_cleanup(struct platform_device *pd)
 873 {
 874         if (handles) {
 875                 if (debug)
 876                         device_remove_file(&pd->dev, &handles->devattr);
 877                 kfree(handles);
 878                 handles = NULL;
 879         }
 880         return 0;
 881 }
 882
 883 static int sony_find_snc_handle(int handle)
 884 {
 885         int i;
 886
 887         /* not initialized yet, return early */
 888         if (!handles || !handle)
 889                 return -EINVAL;
 890
 891         for (i = 0; i < 0x10; i++) {
 892                 if (handles->cap[i] == handle) {
 893                         dprintk("found handle 0x%.4x (offset: 0x%.2x)\n",
 894                                         handle, i);
 895                         return i;
 896                 }
 897         }
 898         dprintk("handle 0x%.4x not found\n", handle);
 899         return -EINVAL;
 900 }
 901
 902 static int sony_call_snc_handle(int handle, int argument, int *result)
 903 {
 904         int arg, ret = 0;
 905         int offset = sony_find_snc_handle(handle);
 906
 907         if (offset < 0)
 908                 return offset;
 909
 910         arg = offset | argument;
 911         ret = sony_nc_int_call(sony_nc_acpi_handle, "SN07", &arg, result);
 912         dprintk("called SN07 with 0x%.4x (result: 0x%.4x)\n", arg, *result);
 913         return ret;
 914 }
 915
 916 /*
 917  * sony_nc_values input/output validate functions
 918  */
 919
 920 /* brightness_default_validate:
 921  *
 922  * manipulate input output values to keep consistency with the
 923  * backlight framework for which brightness values are 0-based.
 924  */
 925 static int brightness_default_validate(const int direction, const int value)
 926 {
 927         switch (direction) {
 928                 case SNC_VALIDATE_OUT:
 929                         return value - 1;
 930                 case SNC_VALIDATE_IN:
 931                         if (value >= 0 && value < SONY_MAX_BRIGHTNESS)
 932                                 return value + 1;
 933         }
 934         return -EINVAL;
 935 }
 936
 937 /* boolean_validate:
 938  *
 939  * on input validate boolean values 0/1, on output just pass the
 940  * received value.
 941  */
 942 static int boolean_validate(const int direction, const int value)
 943 {
 944         if (direction == SNC_VALIDATE_IN) {
 945                 if (value != 0 && value != 1)
 946                         return -EINVAL;
 947         }
 948         return value;
 949 }
 950
 951 /*
 952  * Sysfs show/store common to all sony_nc_values
 953  */
 954 static ssize_t sony_nc_sysfs_show(struct device *dev, struct device_attribute *attr,
 955                               char *buffer)
 956 {
 957         int value, ret = 0;
 958         struct sony_nc_value *item =
 959             container_of(attr, struct sony_nc_value, devattr);
 960
 961         if (!*item->acpiget)
 962                 return -EIO;
 963
 964         ret = sony_nc_int_call(sony_nc_acpi_handle, *item->acpiget, NULL,
 965                                 &value);
 966         if (ret < 0)
 967                 return -EIO;
 968
 969         if (item->validate)
 970                 value = item->validate(SNC_VALIDATE_OUT, value);
 971
 972         return snprintf(buffer, PAGE_SIZE, "%d\n", value);
 973 }
 974
 975 static ssize_t sony_nc_sysfs_store(struct device *dev,
 976                                struct device_attribute *attr,
 977                                const char *buffer, size_t count)
 978 {
 979         int value;
 980         int ret = 0;
 981         struct sony_nc_value *item =
 982             container_of(attr, struct sony_nc_value, devattr);
 983
 984         if (!item->acpiset)
 985                 return -EIO;
 986
 987         if (count > 31)
 988                 return -EINVAL;
 989
 990         if (kstrtoint(buffer, 10, &value))
 991                 return -EINVAL;
 992
 993         if (item->validate)
 994                 value = item->validate(SNC_VALIDATE_IN, value);
 995
 996         if (value < 0)
 997                 return value;
 998
 999         ret = sony_nc_int_call(sony_nc_acpi_handle, *item->acpiset,
1000                                &value, NULL);
1001         if (ret < 0)
1002                 return -EIO;
1003
1004         item->value = value;
1005         item->valid = 1;
1006         return count;
1007 }
1008
1009
1010 /*
1011  * Backlight device
1012  */
1013 struct sony_backlight_props {
1014         struct backlight_device *dev;
1015         int                     handle;
1016         int                     cmd_base;
1017         u8                      offset;
1018         u8                      maxlvl;
1019 };
1020 struct sony_backlight_props sony_bl_props;
1021
1022 static int sony_backlight_update_status(struct backlight_device *bd)
1023 {
1024         int arg = bd->props.brightness + 1;
1025         return sony_nc_int_call(sony_nc_acpi_handle, "SBRT", &arg, NULL);
1026 }
1027
1028 static int sony_backlight_get_brightness(struct backlight_device *bd)
1029 {
1030         int value;
1031
1032         if (sony_nc_int_call(sony_nc_acpi_handle, "GBRT", NULL, &value))
1033                 return 0;
1034         /* brightness levels are 1-based, while backlight ones are 0-based */
1035         return value - 1;
1036 }
1037
1038 static int sony_nc_get_brightness_ng(struct backlight_device *bd)
1039 {
1040         int result;
1041         struct sony_backlight_props *sdev =
1042                 (struct sony_backlight_props *)bl_get_data(bd);
1043
1044         sony_call_snc_handle(sdev->handle, sdev->cmd_base + 0x100, &result);
1045
1046         return (result & 0xff) - sdev->offset;
1047 }
1048
1049 static int sony_nc_update_status_ng(struct backlight_device *bd)
1050 {
1051         int value, result;
1052         struct sony_backlight_props *sdev =
1053                 (struct sony_backlight_props *)bl_get_data(bd);
1054
1055         value = bd->props.brightness + sdev->offset;
1056         if (sony_call_snc_handle(sdev->handle, sdev->cmd_base | (value << 0x10),
1057                                 &result))
1058                 return -EIO;
1059
1060         return value;
1061 }
1062
1063 static const struct backlight_ops sony_backlight_ops = {
1064         .options = BL_CORE_SUSPENDRESUME,
1065         .update_status = sony_backlight_update_status,
1066         .get_brightness = sony_backlight_get_brightness,
1067 };
1068 static const struct backlight_ops sony_backlight_ng_ops = {
1069         .options = BL_CORE_SUSPENDRESUME,
1070         .update_status = sony_nc_update_status_ng,
1071         .get_brightness = sony_nc_get_brightness_ng,
1072 };
1073
1074 /*
1075  * New SNC-only Vaios event mapping to driver known keys
1076  */
1077 struct sony_nc_event {
1078         u8      data;
1079         u8      event;
1080 };
1081
1082 static struct sony_nc_event sony_100_events[] = {
1083         { 0x90, SONYPI_EVENT_PKEY_P1 },
1084         { 0x10, SONYPI_EVENT_ANYBUTTON_RELEASED },
1085         { 0x91, SONYPI_EVENT_PKEY_P2 },
1086         { 0x11, SONYPI_EVENT_ANYBUTTON_RELEASED },
1087         { 0x81, SONYPI_EVENT_FNKEY_F1 },
1088         { 0x01, SONYPI_EVENT_FNKEY_RELEASED },
1089         { 0x82, SONYPI_EVENT_FNKEY_F2 },
1090         { 0x02, SONYPI_EVENT_FNKEY_RELEASED },
1091         { 0x83, SONYPI_EVENT_FNKEY_F3 },
1092         { 0x03, SONYPI_EVENT_FNKEY_RELEASED },
1093         { 0x84, SONYPI_EVENT_FNKEY_F4 },
1094         { 0x04, SONYPI_EVENT_FNKEY_RELEASED },
1095         { 0x85, SONYPI_EVENT_FNKEY_F5 },
1096         { 0x05, SONYPI_EVENT_FNKEY_RELEASED },
1097         { 0x86, SONYPI_EVENT_FNKEY_F6 },
1098         { 0x06, SONYPI_EVENT_FNKEY_RELEASED },
1099         { 0x87, SONYPI_EVENT_FNKEY_F7 },
1100         { 0x07, SONYPI_EVENT_FNKEY_RELEASED },
1101         { 0x88, SONYPI_EVENT_FNKEY_F8 },
1102         { 0x08, SONYPI_EVENT_FNKEY_RELEASED },
1103         { 0x89, SONYPI_EVENT_FNKEY_F9 },
1104         { 0x09, SONYPI_EVENT_FNKEY_RELEASED },
1105         { 0x8A, SONYPI_EVENT_FNKEY_F10 },
1106         { 0x0A, SONYPI_EVENT_FNKEY_RELEASED },
1107         { 0x8B, SONYPI_EVENT_FNKEY_F11 },
1108         { 0x0B, SONYPI_EVENT_FNKEY_RELEASED },
1109         { 0x8C, SONYPI_EVENT_FNKEY_F12 },
1110         { 0x0C, SONYPI_EVENT_FNKEY_RELEASED },
1111         { 0x9d, SONYPI_EVENT_ZOOM_PRESSED },
1112         { 0x1d, SONYPI_EVENT_ANYBUTTON_RELEASED },
1113         { 0x9f, SONYPI_EVENT_CD_EJECT_PRESSED },
1114         { 0x1f, SONYPI_EVENT_ANYBUTTON_RELEASED },
1115         { 0xa1, SONYPI_EVENT_MEDIA_PRESSED },
1116         { 0x21, SONYPI_EVENT_ANYBUTTON_RELEASED },
1117         { 0xa4, SONYPI_EVENT_CD_EJECT_PRESSED },
1118         { 0x24, SONYPI_EVENT_ANYBUTTON_RELEASED },
1119         { 0xa5, SONYPI_EVENT_VENDOR_PRESSED },
1120         { 0x25, SONYPI_EVENT_ANYBUTTON_RELEASED },
1121         { 0xa6, SONYPI_EVENT_HELP_PRESSED },
1122         { 0x26, SONYPI_EVENT_ANYBUTTON_RELEASED },
1123         { 0, 0 },
1124 };
1125
1126 static struct sony_nc_event sony_127_events[] = {
1127         { 0x81, SONYPI_EVENT_MODEKEY_PRESSED },
1128         { 0x01, SONYPI_EVENT_ANYBUTTON_RELEASED },
1129         { 0x82, SONYPI_EVENT_PKEY_P1 },
1130         { 0x02, SONYPI_EVENT_ANYBUTTON_RELEASED },
1131         { 0x83, SONYPI_EVENT_PKEY_P2 },
1132         { 0x03, SONYPI_EVENT_ANYBUTTON_RELEASED },
1133         { 0x84, SONYPI_EVENT_PKEY_P3 },
1134         { 0x04, SONYPI_EVENT_ANYBUTTON_RELEASED },
1135         { 0x85, SONYPI_EVENT_PKEY_P4 },
1136         { 0x05, SONYPI_EVENT_ANYBUTTON_RELEASED },
1137         { 0x86, SONYPI_EVENT_PKEY_P5 },
1138         { 0x06, SONYPI_EVENT_ANYBUTTON_RELEASED },
1139         { 0x87, SONYPI_EVENT_SETTINGKEY_PRESSED },
1140         { 0x07, SONYPI_EVENT_ANYBUTTON_RELEASED },
1141         { 0, 0 },
1142 };
1143
1144 static int sony_nc_hotkeys_decode(u32 event, unsigned int handle)
1145 {
1146         int ret = -EINVAL;
1147         unsigned int result = 0;
1148         struct sony_nc_event *key_event;
1149
1150         if (sony_call_snc_handle(handle, 0x200, &result)) {
1151                 dprintk("Unable to decode event 0x%.2x 0x%.2x\n", handle,
1152                                 event);
1153                 return -EINVAL;
1154         }
1155
1156         result &= 0xFF;
1157
1158         if (handle == 0x0100)
1159                 key_event = sony_100_events;
1160         else
1161                 key_event = sony_127_events;
1162
1163         for (; key_event->data; key_event++) {
1164                 if (key_event->data == result) {
1165                         ret = key_event->event;
1166                         break;
1167                 }
1168         }
1169
1170         if (!key_event->data)
1171                 pr_info("Unknown hotkey 0x%.2x/0x%.2x (handle 0x%.2x)\n",
1172                                 event, result, handle);
1173
1174         return ret;
1175 }
1176
1177 /*
1178  * ACPI callbacks
1179  */
1180 enum event_types {
1181         HOTKEY = 1,
1182         KILLSWITCH,
1183         GFX_SWITCH
1184 };
1185 static void sony_nc_notify(struct acpi_device *device, u32 event)
1186 {
1187         u32 real_ev = event;
1188         u8 ev_type = 0;
1189         dprintk("sony_nc_notify, event: 0x%.2x\n", event);
1190
1191         if (event >= 0x90) {
1192                 unsigned int result = 0;
1193                 unsigned int arg = 0;
1194                 unsigned int handle = 0;
1195                 unsigned int offset = event - 0x90;
1196
1197                 if (offset >= ARRAY_SIZE(handles->cap)) {
1198                         pr_err("Event 0x%x outside of capabilities list\n",
1199                                         event);
1200                         return;
1201                 }
1202                 handle = handles->cap[offset];
1203
1204                 /* list of handles known for generating events */
1205                 switch (handle) {
1206                 /* hotkey event */
1207                 case 0x0100:
1208                 case 0x0127:
1209                         ev_type = HOTKEY;
1210                         real_ev = sony_nc_hotkeys_decode(event, handle);
1211
1212                         if (real_ev > 0)
1213                                 sony_laptop_report_input_event(real_ev);
1214                         else
1215                                 /* restore the original event for reporting */
1216                                 real_ev = event;
1217
1218                         break;
1219
1220                 /* wlan switch */
1221                 case 0x0124:
1222                 case 0x0135:
1223                         /* events on this handle are reported when the
1224                          * switch changes position or for battery
1225                          * events. We'll notify both of them but only
1226                          * update the rfkill device status when the
1227                          * switch is moved.
1228                          */
1229                         ev_type = KILLSWITCH;
1230                         sony_call_snc_handle(handle, 0x0100, &result);
1231                         real_ev = result & 0x03;
1232
1233                         /* hw switch event */
1234                         if (real_ev == 1)
1235                                 sony_nc_rfkill_update();
1236
1237                         break;
1238
1239                 case 0x0128:
1240                 case 0x0146:
1241                         /* Hybrid GFX switching */
1242                         sony_call_snc_handle(handle, 0x0000, &result);
1243                         dprintk("GFX switch event received (reason: %s)\n",
1244                                         (result & 0x01) ?
1245                                         "switch change" : "unknown");
1246
1247                         /* verify the switch state
1248                          * 1: discrete GFX
1249                          * 0: integrated GFX
1250                          */
1251                         sony_call_snc_handle(handle, 0x0100, &result);
1252
1253                         ev_type = GFX_SWITCH;
1254                         real_ev = result & 0xff;
1255                         break;
1256
1257                 default:
1258                         dprintk("Unknown event 0x%x for handle 0x%x\n",
1259                                         event, handle);
1260                         break;
1261                 }
1262
1263                 /* clear the event (and the event reason when present) */
1264                 arg = 1 << offset;
1265                 sony_nc_int_call(sony_nc_acpi_handle, "SN05", &arg, &result);
1266
1267         } else {
1268                 /* old style event */
1269                 ev_type = HOTKEY;
1270                 sony_laptop_report_input_event(real_ev);
1271         }
1272
1273         acpi_bus_generate_proc_event(sony_nc_acpi_device, ev_type, real_ev);
1274
1275         acpi_bus_generate_netlink_event(sony_nc_acpi_device->pnp.device_class,
1276                         dev_name(&sony_nc_acpi_device->dev), ev_type, real_ev);
1277 }
1278
1279 static acpi_status sony_walk_callback(acpi_handle handle, u32 level,
1280                                       void *context, void **return_value)
1281 {
1282         struct acpi_device_info *info;
1283
1284         if (ACPI_SUCCESS(acpi_get_object_info(handle, &info))) {
1285                 pr_warn("method: name: %4.4s, args %X\n",
1286                         (char *)&info->name, info->param_count);
1287
1288                 kfree(info);
1289         }
1290
1291         return AE_OK;
1292 }
1293
1294 /*
1295  * ACPI device
1296  */
1297 static void sony_nc_function_setup(struct acpi_device *device,
1298                 struct platform_device *pf_device)
1299 {
1300         unsigned int i, result, bitmask, arg;
1301
1302         if (!handles)
1303                 return;
1304
1305         /* setup found handles here */
1306         for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
1307                 unsigned int handle = handles->cap[i];
1308
1309                 if (!handle)
1310                         continue;
1311
1312                 dprintk("setting up handle 0x%.4x\n", handle);
1313
1314                 switch (handle) {
1315                 case 0x0100:
1316                 case 0x0101:
1317                 case 0x0127:
1318                         /* setup hotkeys */
1319                         sony_call_snc_handle(handle, 0, &result);
1320                         break;
1321                 case 0x0102:
1322                         /* setup hotkeys */
1323                         sony_call_snc_handle(handle, 0x100, &result);
1324                         break;
1325                 case 0x0105:
1326                 case 0x0148:
1327                         /* touchpad enable/disable */
1328                         result = sony_nc_touchpad_setup(pf_device, handle);
1329                         if (result)
1330                                 pr_err("couldn't set up touchpad control function (%d)\n",
1331                                                 result);
1332                         break;
1333                 case 0x0115:
1334                 case 0x0136:
1335                 case 0x013f:
1336                         result = sony_nc_battery_care_setup(pf_device, handle);
1337                         if (result)
1338                                 pr_err("couldn't set up battery care function (%d)\n",
1339                                                 result);
1340                         break;
1341                 case 0x0119:
1342                         result = sony_nc_lid_resume_setup(pf_device);
1343                         if (result)
1344                                 pr_err("couldn't set up lid resume function (%d)\n",
1345                                                 result);
1346                         break;
1347                 case 0x0122:
1348                         result = sony_nc_thermal_setup(pf_device);
1349                         if (result)
1350                                 pr_err("couldn't set up thermal profile function (%d)\n",
1351                                                 result);
1352                         break;
1353                 case 0x0131:
1354                         result = sony_nc_highspeed_charging_setup(pf_device);
1355                         if (result)
1356                                 pr_err("couldn't set up high speed charging function (%d)\n",
1357                                        result);
1358                         break;
1359                 case 0x0124:
1360                 case 0x0135:
1361                         result = sony_nc_rfkill_setup(device, handle);
1362                         if (result)
1363                                 pr_err("couldn't set up rfkill support (%d)\n",
1364                                                 result);
1365                         break;
1366                 case 0x0137:
1367                 case 0x0143:
1368                         result = sony_nc_kbd_backlight_setup(pf_device, handle);
1369                         if (result)
1370                                 pr_err("couldn't set up keyboard backlight function (%d)\n",
1371                                                 result);
1372                         break;
1373                 default:
1374                         continue;
1375                 }
1376         }
1377
1378         /* Enable all events */
1379         arg = 0x10;
1380         if (!sony_nc_int_call(sony_nc_acpi_handle, "SN00", &arg, &bitmask))
1381                 sony_nc_int_call(sony_nc_acpi_handle, "SN02", &bitmask,
1382                                 &result);
1383 }
1384
1385 static void sony_nc_function_cleanup(struct platform_device *pd)
1386 {
1387         unsigned int i, result, bitmask, handle;
1388
1389         /* get enabled events and disable them */
1390         sony_nc_int_call(sony_nc_acpi_handle, "SN01", NULL, &bitmask);
1391         sony_nc_int_call(sony_nc_acpi_handle, "SN03", &bitmask, &result);
1392
1393         /* cleanup handles here */
1394         for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
1395
1396                 handle = handles->cap[i];
1397
1398                 if (!handle)
1399                         continue;
1400
1401                 switch (handle) {
1402                 case 0x0105:
1403                 case 0x0148:
1404                         sony_nc_touchpad_cleanup(pd);
1405                         break;
1406                 case 0x0115:
1407                 case 0x0136:
1408                 case 0x013f:
1409                         sony_nc_battery_care_cleanup(pd);
1410                         break;
1411                 case 0x0119:
1412                         sony_nc_lid_resume_cleanup(pd);
1413                         break;
1414                 case 0x0122:
1415                         sony_nc_thermal_cleanup(pd);
1416                         break;
1417                 case 0x0131:
1418                         sony_nc_highspeed_charging_cleanup(pd);
1419                         break;
1420                 case 0x0124:
1421                 case 0x0135:
1422                         sony_nc_rfkill_cleanup();
1423                         break;
1424                 case 0x0137:
1425                 case 0x0143:
1426                         sony_nc_kbd_backlight_cleanup(pd);
1427                         break;
1428                 default:
1429                         continue;
1430                 }
1431         }
1432
1433         /* finally cleanup the handles list */
1434         sony_nc_handles_cleanup(pd);
1435 }
1436
1437 #ifdef CONFIG_PM_SLEEP
1438 static void sony_nc_function_resume(void)
1439 {
1440         unsigned int i, result, bitmask, arg;
1441
1442         dprintk("Resuming SNC device\n");
1443
1444         for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
1445                 unsigned int handle = handles->cap[i];
1446
1447                 if (!handle)
1448                         continue;
1449
1450                 switch (handle) {
1451                 case 0x0100:
1452                 case 0x0101:
1453                 case 0x0127:
1454                         /* re-enable hotkeys */
1455                         sony_call_snc_handle(handle, 0, &result);
1456                         break;
1457                 case 0x0102:
1458                         /* re-enable hotkeys */
1459                         sony_call_snc_handle(handle, 0x100, &result);
1460                         break;
1461                 case 0x0122:
1462                         sony_nc_thermal_resume();
1463                         break;
1464                 case 0x0124:
1465                 case 0x0135:
1466                         sony_nc_rfkill_update();
1467                         break;
1468                 case 0x0137:
1469                 case 0x0143:
1470                         sony_nc_kbd_backlight_resume();
1471                         break;
1472                 default:
1473                         continue;
1474                 }
1475         }
1476
1477         /* Enable all events */
1478         arg = 0x10;
1479         if (!sony_nc_int_call(sony_nc_acpi_handle, "SN00", &arg, &bitmask))
1480                 sony_nc_int_call(sony_nc_acpi_handle, "SN02", &bitmask,
1481                                 &result);
1482 }
1483
1484 static int sony_nc_resume(struct device *dev)
1485 {
1486         struct sony_nc_value *item;
1487         acpi_handle handle;
1488
1489         for (item = sony_nc_values; item->name; item++) {
1490                 int ret;
1491
1492                 if (!item->valid)
1493                         continue;
1494                 ret = sony_nc_int_call(sony_nc_acpi_handle, *item->acpiset,
1495                                        &item->value, NULL);
1496                 if (ret < 0) {
1497                         pr_err("%s: %d\n", __func__, ret);
1498                         break;
1499                 }
1500         }
1501
1502         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "ECON",
1503                                          &handle))) {
1504                 int arg = 1;
1505                 if (sony_nc_int_call(sony_nc_acpi_handle, "ECON", &arg, NULL))
1506                         dprintk("ECON Method failed\n");
1507         }
1508
1509         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "SN00",
1510                                          &handle)))
1511                 sony_nc_function_resume();
1512
1513         return 0;
1514 }
1515 #endif
1516
1517 static SIMPLE_DEV_PM_OPS(sony_nc_pm, NULL, sony_nc_resume);
1518
1519 static void sony_nc_rfkill_cleanup(void)
1520 {
1521         int i;
1522
1523         for (i = 0; i < N_SONY_RFKILL; i++) {
1524                 if (sony_rfkill_devices[i]) {
1525                         rfkill_unregister(sony_rfkill_devices[i]);
1526                         rfkill_destroy(sony_rfkill_devices[i]);
1527                 }
1528         }
1529 }
1530
1531 static int sony_nc_rfkill_set(void *data, bool blocked)
1532 {
1533         int result;
1534         int argument = sony_rfkill_address[(long) data] + 0x100;
1535
1536         if (!blocked)
1537                 argument |= 0x030000;
1538
1539         return sony_call_snc_handle(sony_rfkill_handle, argument, &result);
1540 }
1541
1542 static const struct rfkill_ops sony_rfkill_ops = {
1543         .set_block = sony_nc_rfkill_set,
1544 };
1545
1546 static int sony_nc_setup_rfkill(struct acpi_device *device,
1547                                 enum sony_nc_rfkill nc_type)
1548 {
1549         int err = 0;
1550         struct rfkill *rfk;
1551         enum rfkill_type type;
1552         const char *name;
1553         int result;
1554         bool hwblock, swblock;
1555
1556         switch (nc_type) {
1557         case SONY_WIFI:
1558                 type = RFKILL_TYPE_WLAN;
1559                 name = "sony-wifi";
1560                 break;
1561         case SONY_BLUETOOTH:
1562                 type = RFKILL_TYPE_BLUETOOTH;
1563                 name = "sony-bluetooth";
1564                 break;
1565         case SONY_WWAN:
1566                 type = RFKILL_TYPE_WWAN;
1567                 name = "sony-wwan";
1568                 break;
1569         case SONY_WIMAX:
1570                 type = RFKILL_TYPE_WIMAX;
1571                 name = "sony-wimax";
1572                 break;
1573         default:
1574                 return -EINVAL;
1575         }
1576
1577         rfk = rfkill_alloc(name, &device->dev, type,
1578                            &sony_rfkill_ops, (void *)nc_type);
1579         if (!rfk)
1580                 return -ENOMEM;
1581
1582         if (sony_call_snc_handle(sony_rfkill_handle, 0x200, &result) < 0) {
1583                 rfkill_destroy(rfk);
1584                 return -1;
1585         }
1586         hwblock = !(result & 0x1);
1587
1588         if (sony_call_snc_handle(sony_rfkill_handle,
1589                                 sony_rfkill_address[nc_type],
1590                                 &result) < 0) {
1591                 rfkill_destroy(rfk);
1592                 return -1;
1593         }
1594         swblock = !(result & 0x2);
1595
1596         rfkill_init_sw_state(rfk, swblock);
1597         rfkill_set_hw_state(rfk, hwblock);
1598
1599         err = rfkill_register(rfk);
1600         if (err) {
1601                 rfkill_destroy(rfk);
1602                 return err;
1603         }
1604         sony_rfkill_devices[nc_type] = rfk;
1605         return err;
1606 }
1607
1608 static void sony_nc_rfkill_update(void)
1609 {
1610         enum sony_nc_rfkill i;
1611         int result;
1612         bool hwblock;
1613
1614         sony_call_snc_handle(sony_rfkill_handle, 0x200, &result);
1615         hwblock = !(result & 0x1);
1616
1617         for (i = 0; i < N_SONY_RFKILL; i++) {
1618                 int argument = sony_rfkill_address[i];
1619
1620                 if (!sony_rfkill_devices[i])
1621                         continue;
1622
1623                 if (hwblock) {
1624                         if (rfkill_set_hw_state(sony_rfkill_devices[i], true)) {
1625                                 /* we already know we're blocked */
1626                         }
1627                         continue;
1628                 }
1629
1630                 sony_call_snc_handle(sony_rfkill_handle, argument, &result);
1631                 rfkill_set_states(sony_rfkill_devices[i],
1632                                   !(result & 0x2), false);
1633         }
1634 }
1635
1636 static int sony_nc_rfkill_setup(struct acpi_device *device,
1637                 unsigned int handle)
1638 {
1639         u64 offset;
1640         int i;
1641         unsigned char buffer[32] = { 0 };
1642
1643         offset = sony_find_snc_handle(handle);
1644         sony_rfkill_handle = handle;
1645
1646         i = sony_nc_buffer_call(sony_nc_acpi_handle, "SN06", &offset, buffer,
1647                         32);
1648         if (i < 0)
1649                 return i;
1650
1651         /* The buffer is filled with magic numbers describing the devices
1652          * available, 0xff terminates the enumeration.
1653          * Known codes:
1654          *      0x00 WLAN
1655          *      0x10 BLUETOOTH
1656          *      0x20 WWAN GPRS-EDGE
1657          *      0x21 WWAN HSDPA
1658          *      0x22 WWAN EV-DO
1659          *      0x23 WWAN GPS
1660          *      0x25 Gobi WWAN no GPS
1661          *      0x26 Gobi WWAN + GPS
1662          *      0x28 Gobi WWAN no GPS
1663          *      0x29 Gobi WWAN + GPS
1664          *      0x30 WIMAX
1665          *      0x50 Gobi WWAN no GPS
1666          *      0x51 Gobi WWAN + GPS
1667          *      0x70 no SIM card slot
1668          *      0x71 SIM card slot
1669          */
1670         for (i = 0; i < ARRAY_SIZE(buffer); i++) {
1671
1672                 if (buffer[i] == 0xff)
1673                         break;
1674
1675                 dprintk("Radio devices, found 0x%.2x\n", buffer[i]);
1676
1677                 if (buffer[i] == 0 && !sony_rfkill_devices[SONY_WIFI])
1678                         sony_nc_setup_rfkill(device, SONY_WIFI);
1679
1680                 if (buffer[i] == 0x10 && !sony_rfkill_devices[SONY_BLUETOOTH])
1681                         sony_nc_setup_rfkill(device, SONY_BLUETOOTH);
1682
1683                 if (((0xf0 & buffer[i]) == 0x20 ||
1684                                         (0xf0 & buffer[i]) == 0x50) &&
1685                                 !sony_rfkill_devices[SONY_WWAN])
1686                         sony_nc_setup_rfkill(device, SONY_WWAN);
1687
1688                 if (buffer[i] == 0x30 && !sony_rfkill_devices[SONY_WIMAX])
1689                         sony_nc_setup_rfkill(device, SONY_WIMAX);
1690         }
1691         return 0;
1692 }
1693
1694 /* Keyboard backlight feature */
1695 struct kbd_backlight {
1696         unsigned int handle;
1697         unsigned int base;
1698         unsigned int mode;
1699         unsigned int timeout;
1700         struct device_attribute mode_attr;
1701         struct device_attribute timeout_attr;
1702 };
1703
1704 static struct kbd_backlight *kbdbl_ctl;
1705
1706 static ssize_t __sony_nc_kbd_backlight_mode_set(u8 value)
1707 {
1708         int result;
1709
1710         if (value > 1)
1711                 return -EINVAL;
1712
1713         if (sony_call_snc_handle(kbdbl_ctl->handle,
1714                                 (value << 0x10) | (kbdbl_ctl->base), &result))
1715                 return -EIO;
1716
1717         /* Try to turn the light on/off immediately */
1718         sony_call_snc_handle(kbdbl_ctl->handle,
1719                         (value << 0x10) | (kbdbl_ctl->base + 0x100), &result);
1720
1721         kbdbl_ctl->mode = value;
1722
1723         return 0;
1724 }
1725
1726 static ssize_t sony_nc_kbd_backlight_mode_store(struct device *dev,
1727                 struct device_attribute *attr,
1728                 const char *buffer, size_t count)
1729 {
1730         int ret = 0;
1731         unsigned long value;
1732
1733         if (count > 31)
1734                 return -EINVAL;
1735
1736         if (kstrtoul(buffer, 10, &value))
1737                 return -EINVAL;
1738
1739         ret = __sony_nc_kbd_backlight_mode_set(value);
1740         if (ret < 0)
1741                 return ret;
1742
1743         return count;
1744 }
1745
1746 static ssize_t sony_nc_kbd_backlight_mode_show(struct device *dev,
1747                 struct device_attribute *attr, char *buffer)
1748 {
1749         ssize_t count = 0;
1750         count = snprintf(buffer, PAGE_SIZE, "%d\n", kbdbl_ctl->mode);
1751         return count;
1752 }
1753
1754 static int __sony_nc_kbd_backlight_timeout_set(u8 value)
1755 {
1756         int result;
1757
1758         if (value > 3)
1759                 return -EINVAL;
1760
1761         if (sony_call_snc_handle(kbdbl_ctl->handle, (value << 0x10) |
1762                                 (kbdbl_ctl->base + 0x200), &result))
1763                 return -EIO;
1764
1765         kbdbl_ctl->timeout = value;
1766
1767         return 0;
1768 }
1769
1770 static ssize_t sony_nc_kbd_backlight_timeout_store(struct device *dev,
1771                 struct device_attribute *attr,
1772                 const char *buffer, size_t count)
1773 {
1774         int ret = 0;
1775         unsigned long value;
1776
1777         if (count > 31)
1778                 return -EINVAL;
1779
1780         if (kstrtoul(buffer, 10, &value))
1781                 return -EINVAL;
1782
1783         ret = __sony_nc_kbd_backlight_timeout_set(value);
1784         if (ret < 0)
1785                 return ret;
1786
1787         return count;
1788 }
1789
1790 static ssize_t sony_nc_kbd_backlight_timeout_show(struct device *dev,
1791                 struct device_attribute *attr, char *buffer)
1792 {
1793         ssize_t count = 0;
1794         count = snprintf(buffer, PAGE_SIZE, "%d\n", kbdbl_ctl->timeout);
1795         return count;
1796 }
1797
1798 static int sony_nc_kbd_backlight_setup(struct platform_device *pd,
1799                 unsigned int handle)
1800 {
1801         int result;
1802         int ret = 0;
1803
1804         /* verify the kbd backlight presence, these handles are not used for
1805          * keyboard backlight only
1806          */
1807         ret = sony_call_snc_handle(handle, handle == 0x0137 ? 0x0B00 : 0x0100,
1808                         &result);
1809         if (ret)
1810                 return ret;
1811
1812         if ((handle == 0x0137 && !(result & 0x02)) ||
1813                         !(result & 0x01)) {
1814                 dprintk("no backlight keyboard found\n");
1815                 return 0;
1816         }
1817
1818         kbdbl_ctl = kzalloc(sizeof(*kbdbl_ctl), GFP_KERNEL);
1819         if (!kbdbl_ctl)
1820                 return -ENOMEM;
1821
1822         kbdbl_ctl->handle = handle;
1823         if (handle == 0x0137)
1824                 kbdbl_ctl->base = 0x0C00;
1825         else
1826                 kbdbl_ctl->base = 0x4000;
1827
1828         sysfs_attr_init(&kbdbl_ctl->mode_attr.attr);
1829         kbdbl_ctl->mode_attr.attr.name = "kbd_backlight";
1830         kbdbl_ctl->mode_attr.attr.mode = S_IRUGO | S_IWUSR;
1831         kbdbl_ctl->mode_attr.show = sony_nc_kbd_backlight_mode_show;
1832         kbdbl_ctl->mode_attr.store = sony_nc_kbd_backlight_mode_store;
1833
1834         sysfs_attr_init(&kbdbl_ctl->timeout_attr.attr);
1835         kbdbl_ctl->timeout_attr.attr.name = "kbd_backlight_timeout";
1836         kbdbl_ctl->timeout_attr.attr.mode = S_IRUGO | S_IWUSR;
1837         kbdbl_ctl->timeout_attr.show = sony_nc_kbd_backlight_timeout_show;
1838         kbdbl_ctl->timeout_attr.store = sony_nc_kbd_backlight_timeout_store;
1839
1840         ret = device_create_file(&pd->dev, &kbdbl_ctl->mode_attr);
1841         if (ret)
1842                 goto outkzalloc;
1843
1844         ret = device_create_file(&pd->dev, &kbdbl_ctl->timeout_attr);
1845         if (ret)
1846                 goto outmode;
1847
1848         __sony_nc_kbd_backlight_mode_set(kbd_backlight);
1849         __sony_nc_kbd_backlight_timeout_set(kbd_backlight_timeout);
1850
1851         return 0;
1852
1853 outmode:
1854         device_remove_file(&pd->dev, &kbdbl_ctl->mode_attr);
1855 outkzalloc:
1856         kfree(kbdbl_ctl);
1857         kbdbl_ctl = NULL;
1858         return ret;
1859 }
1860
1861 static void sony_nc_kbd_backlight_cleanup(struct platform_device *pd)
1862 {
1863         if (kbdbl_ctl) {
1864                 int result;
1865
1866                 device_remove_file(&pd->dev, &kbdbl_ctl->mode_attr);
1867                 device_remove_file(&pd->dev, &kbdbl_ctl->timeout_attr);
1868
1869                 /* restore the default hw behaviour */
1870                 sony_call_snc_handle(kbdbl_ctl->handle,
1871                                 kbdbl_ctl->base | 0x10000, &result);
1872                 sony_call_snc_handle(kbdbl_ctl->handle,
1873                                 kbdbl_ctl->base + 0x200, &result);
1874
1875                 kfree(kbdbl_ctl);
1876                 kbdbl_ctl = NULL;
1877         }
1878 }
1879
1880 #ifdef CONFIG_PM_SLEEP
1881 static void sony_nc_kbd_backlight_resume(void)
1882 {
1883         int ignore = 0;
1884
1885         if (!kbdbl_ctl)
1886                 return;
1887
1888         if (kbdbl_ctl->mode == 0)
1889                 sony_call_snc_handle(kbdbl_ctl->handle, kbdbl_ctl->base,
1890                                 &ignore);
1891
1892         if (kbdbl_ctl->timeout != 0)
1893                 sony_call_snc_handle(kbdbl_ctl->handle,
1894                                 (kbdbl_ctl->base + 0x200) |
1895                                 (kbdbl_ctl->timeout << 0x10), &ignore);
1896 }
1897 #endif
1898
1899 struct battery_care_control {
1900         struct device_attribute attrs[2];
1901         unsigned int handle;
1902 };
1903 static struct battery_care_control *bcare_ctl;
1904
1905 static ssize_t sony_nc_battery_care_limit_store(struct device *dev,
1906                 struct device_attribute *attr,
1907                 const char *buffer, size_t count)
1908 {
1909         unsigned int result, cmd;
1910         unsigned long value;
1911
1912         if (count > 31)
1913                 return -EINVAL;
1914
1915         if (kstrtoul(buffer, 10, &value))
1916                 return -EINVAL;
1917
1918         /*  limit values (2 bits):
1919          *  00 - none
1920          *  01 - 80%
1921          *  10 - 50%
1922          *  11 - 100%
1923          *
1924          *  bit 0: 0 disable BCL, 1 enable BCL
1925          *  bit 1: 1 tell to store the battery limit (see bits 6,7) too
1926          *  bits 2,3: reserved
1927          *  bits 4,5: store the limit into the EC
1928          *  bits 6,7: store the limit into the battery
1929          */
1930         cmd = 0;
1931
1932         if (value > 0) {
1933                 if (value <= 50)
1934                         cmd = 0x20;
1935
1936                 else if (value <= 80)
1937                         cmd = 0x10;
1938
1939                 else if (value <= 100)
1940                         cmd = 0x30;
1941
1942                 else
1943                         return -EINVAL;
1944
1945                 /*
1946                  * handle 0x0115 should allow storing on battery too;
1947                  * handle 0x0136 same as 0x0115 + health status;
1948                  * handle 0x013f, same as 0x0136 but no storing on the battery
1949                  */
1950                 if (bcare_ctl->handle != 0x013f)
1951                         cmd = cmd | (cmd << 2);
1952
1953                 cmd = (cmd | 0x1) << 0x10;
1954         }
1955
1956         if (sony_call_snc_handle(bcare_ctl->handle, cmd | 0x0100, &result))
1957                 return -EIO;
1958
1959         return count;
1960 }
1961
1962 static ssize_t sony_nc_battery_care_limit_show(struct device *dev,
1963                 struct device_attribute *attr, char *buffer)
1964 {
1965         unsigned int result, status;
1966
1967         if (sony_call_snc_handle(bcare_ctl->handle, 0x0000, &result))
1968                 return -EIO;
1969
1970         status = (result & 0x01) ? ((result & 0x30) >> 0x04) : 0;
1971         switch (status) {
1972         case 1:
1973                 status = 80;
1974                 break;
1975         case 2:
1976                 status = 50;
1977                 break;
1978         case 3:
1979                 status = 100;
1980                 break;
1981         default:
1982                 status = 0;
1983                 break;
1984         }
1985
1986         return snprintf(buffer, PAGE_SIZE, "%d\n", status);
1987 }
1988
1989 static ssize_t sony_nc_battery_care_health_show(struct device *dev,
1990                 struct device_attribute *attr, char *buffer)
1991 {
1992         ssize_t count = 0;
1993         unsigned int health;
1994
1995         if (sony_call_snc_handle(bcare_ctl->handle, 0x0200, &health))
1996                 return -EIO;
1997
1998         count = snprintf(buffer, PAGE_SIZE, "%d\n", health & 0xff);
1999
2000         return count;
2001 }
2002
2003 static int sony_nc_battery_care_setup(struct platform_device *pd,
2004                 unsigned int handle)
2005 {
2006         int ret = 0;
2007
2008         bcare_ctl = kzalloc(sizeof(struct battery_care_control), GFP_KERNEL);
2009         if (!bcare_ctl)
2010                 return -ENOMEM;
2011
2012         bcare_ctl->handle = handle;
2013
2014         sysfs_attr_init(&bcare_ctl->attrs[0].attr);
2015         bcare_ctl->attrs[0].attr.name = "battery_care_limiter";
2016         bcare_ctl->attrs[0].attr.mode = S_IRUGO | S_IWUSR;
2017         bcare_ctl->attrs[0].show = sony_nc_battery_care_limit_show;
2018         bcare_ctl->attrs[0].store = sony_nc_battery_care_limit_store;
2019
2020         ret = device_create_file(&pd->dev, &bcare_ctl->attrs[0]);
2021         if (ret)
2022                 goto outkzalloc;
2023
2024         /* 0x0115 is for models with no health reporting capability */
2025         if (handle == 0x0115)
2026                 return 0;
2027
2028         sysfs_attr_init(&bcare_ctl->attrs[1].attr);
2029         bcare_ctl->attrs[1].attr.name = "battery_care_health";
2030         bcare_ctl->attrs[1].attr.mode = S_IRUGO;
2031         bcare_ctl->attrs[1].show = sony_nc_battery_care_health_show;
2032
2033         ret = device_create_file(&pd->dev, &bcare_ctl->attrs[1]);
2034         if (ret)
2035                 goto outlimiter;
2036
2037         return 0;
2038
2039 outlimiter:
2040         device_remove_file(&pd->dev, &bcare_ctl->attrs[0]);
2041
2042 outkzalloc:
2043         kfree(bcare_ctl);
2044         bcare_ctl = NULL;
2045
2046         return ret;
2047 }
2048
2049 static void sony_nc_battery_care_cleanup(struct platform_device *pd)
2050 {
2051         if (bcare_ctl) {
2052                 device_remove_file(&pd->dev, &bcare_ctl->attrs[0]);
2053                 if (bcare_ctl->handle != 0x0115)
2054                         device_remove_file(&pd->dev, &bcare_ctl->attrs[1]);
2055
2056                 kfree(bcare_ctl);
2057                 bcare_ctl = NULL;
2058         }
2059 }
2060
2061 struct snc_thermal_ctrl {
2062         unsigned int mode;
2063         unsigned int profiles;
2064         struct device_attribute mode_attr;
2065         struct device_attribute profiles_attr;
2066 };
2067 static struct snc_thermal_ctrl *th_handle;
2068
2069 #define THM_PROFILE_MAX 3
2070 static const char * const snc_thermal_profiles[] = {
2071         "balanced",
2072         "silent",
2073         "performance"
2074 };
2075
2076 static int sony_nc_thermal_mode_set(unsigned short mode)
2077 {
2078         unsigned int result;
2079
2080         /* the thermal profile seems to be a two bit bitmask:
2081          * lsb -> silent
2082          * msb -> performance
2083          * no bit set is the normal operation and is always valid
2084          * Some vaio models only have "balanced" and "performance"
2085          */
2086         if ((mode && !(th_handle->profiles & mode)) || mode >= THM_PROFILE_MAX)
2087                 return -EINVAL;
2088
2089         if (sony_call_snc_handle(0x0122, mode << 0x10 | 0x0200, &result))
2090                 return -EIO;
2091
2092         th_handle->mode = mode;
2093
2094         return 0;
2095 }
2096
2097 static int sony_nc_thermal_mode_get(void)
2098 {
2099         unsigned int result;
2100
2101         if (sony_call_snc_handle(0x0122, 0x0100, &result))
2102                 return -EIO;
2103
2104         return result & 0xff;
2105 }
2106
2107 static ssize_t sony_nc_thermal_profiles_show(struct device *dev,
2108                 struct device_attribute *attr, char *buffer)
2109 {
2110         short cnt;
2111         size_t idx = 0;
2112
2113         for (cnt = 0; cnt < THM_PROFILE_MAX; cnt++) {
2114                 if (!cnt || (th_handle->profiles & cnt))
2115                         idx += snprintf(buffer + idx, PAGE_SIZE - idx, "%s ",
2116                                         snc_thermal_profiles[cnt]);
2117         }
2118         idx += snprintf(buffer + idx, PAGE_SIZE - idx, "\n");
2119
2120         return idx;
2121 }
2122
2123 static ssize_t sony_nc_thermal_mode_store(struct device *dev,
2124                 struct device_attribute *attr,
2125                 const char *buffer, size_t count)
2126 {
2127         unsigned short cmd;
2128         size_t len = count;
2129
2130         if (count == 0)
2131                 return -EINVAL;
2132
2133         /* skip the newline if present */
2134         if (buffer[len - 1] == '\n')
2135                 len--;
2136
2137         for (cmd = 0; cmd < THM_PROFILE_MAX; cmd++)
2138                 if (strncmp(buffer, snc_thermal_profiles[cmd], len) == 0)
2139                         break;
2140
2141         if (sony_nc_thermal_mode_set(cmd))
2142                 return -EIO;
2143
2144         return count;
2145 }
2146
2147 static ssize_t sony_nc_thermal_mode_show(struct device *dev,
2148                 struct device_attribute *attr, char *buffer)
2149 {
2150         ssize_t count = 0;
2151         int mode = sony_nc_thermal_mode_get();
2152
2153         if (mode < 0)
2154                 return mode;
2155
2156         count = snprintf(buffer, PAGE_SIZE, "%s\n", snc_thermal_profiles[mode]);
2157
2158         return count;
2159 }
2160
2161 static int sony_nc_thermal_setup(struct platform_device *pd)
2162 {
2163         int ret = 0;
2164         th_handle = kzalloc(sizeof(struct snc_thermal_ctrl), GFP_KERNEL);
2165         if (!th_handle)
2166                 return -ENOMEM;
2167
2168         ret = sony_call_snc_handle(0x0122, 0x0000, &th_handle->profiles);
2169         if (ret) {
2170                 pr_warn("couldn't to read the thermal profiles\n");
2171                 goto outkzalloc;
2172         }
2173
2174         ret = sony_nc_thermal_mode_get();
2175         if (ret < 0) {
2176                 pr_warn("couldn't to read the current thermal profile");
2177                 goto outkzalloc;
2178         }
2179         th_handle->mode = ret;
2180
2181         sysfs_attr_init(&th_handle->profiles_attr.attr);
2182         th_handle->profiles_attr.attr.name = "thermal_profiles";
2183         th_handle->profiles_attr.attr.mode = S_IRUGO;
2184         th_handle->profiles_attr.show = sony_nc_thermal_profiles_show;
2185
2186         sysfs_attr_init(&th_handle->mode_attr.attr);
2187         th_handle->mode_attr.attr.name = "thermal_control";
2188         th_handle->mode_attr.attr.mode = S_IRUGO | S_IWUSR;
2189         th_handle->mode_attr.show = sony_nc_thermal_mode_show;
2190         th_handle->mode_attr.store = sony_nc_thermal_mode_store;
2191
2192         ret = device_create_file(&pd->dev, &th_handle->profiles_attr);
2193         if (ret)
2194                 goto outkzalloc;
2195
2196         ret = device_create_file(&pd->dev, &th_handle->mode_attr);
2197         if (ret)
2198                 goto outprofiles;
2199
2200         return 0;
2201
2202 outprofiles:
2203         device_remove_file(&pd->dev, &th_handle->profiles_attr);
2204 outkzalloc:
2205         kfree(th_handle);
2206         th_handle = NULL;
2207         return ret;
2208 }
2209
2210 static void sony_nc_thermal_cleanup(struct platform_device *pd)
2211 {
2212         if (th_handle) {
2213                 device_remove_file(&pd->dev, &th_handle->profiles_attr);
2214                 device_remove_file(&pd->dev, &th_handle->mode_attr);
2215                 kfree(th_handle);
2216                 th_handle = NULL;
2217         }
2218 }
2219
2220 #ifdef CONFIG_PM_SLEEP
2221 static void sony_nc_thermal_resume(void)
2222 {
2223         unsigned int status = sony_nc_thermal_mode_get();
2224
2225         if (status != th_handle->mode)
2226                 sony_nc_thermal_mode_set(th_handle->mode);
2227 }
2228 #endif
2229
2230 /* resume on LID open */
2231 struct snc_lid_resume_control {
2232         struct device_attribute attrs[3];
2233         unsigned int status;
2234 };
2235 static struct snc_lid_resume_control *lid_ctl;
2236
2237 static ssize_t sony_nc_lid_resume_store(struct device *dev,
2238                                         struct device_attribute *attr,
2239                                         const char *buffer, size_t count)
2240 {
2241         unsigned int result, pos;
2242         unsigned long value;
2243         if (count > 31)
2244                 return -EINVAL;
2245
2246         if (kstrtoul(buffer, 10, &value) || value > 1)
2247                 return -EINVAL;
2248
2249         /* the value we have to write to SNC is a bitmask:
2250          * +--------------+
2251          * | S3 | S4 | S5 |
2252          * +--------------+
2253          *   2    1    0
2254          */
2255         if (strcmp(attr->attr.name, "lid_resume_S3") == 0)
2256                 pos = 2;
2257         else if (strcmp(attr->attr.name, "lid_resume_S4") == 0)
2258                 pos = 1;
2259         else if (strcmp(attr->attr.name, "lid_resume_S5") == 0)
2260                 pos = 0;
2261         else
2262                return -EINVAL;
2263
2264         if (value)
2265                 value = lid_ctl->status | (1 << pos);
2266         else
2267                 value = lid_ctl->status & ~(1 << pos);
2268
2269         if (sony_call_snc_handle(0x0119, value << 0x10 | 0x0100, &result))
2270                 return -EIO;
2271
2272         lid_ctl->status = value;
2273
2274         return count;
2275 }
2276
2277 static ssize_t sony_nc_lid_resume_show(struct device *dev,
2278                                        struct device_attribute *attr, char *buffer)
2279 {
2280         unsigned int pos;
2281
2282         if (strcmp(attr->attr.name, "lid_resume_S3") == 0)
2283                 pos = 2;
2284         else if (strcmp(attr->attr.name, "lid_resume_S4") == 0)
2285                 pos = 1;
2286         else if (strcmp(attr->attr.name, "lid_resume_S5") == 0)
2287                 pos = 0;
2288         else
2289                 return -EINVAL;
2290
2291         return snprintf(buffer, PAGE_SIZE, "%d\n",
2292                         (lid_ctl->status >> pos) & 0x01);
2293 }
2294
2295 static int sony_nc_lid_resume_setup(struct platform_device *pd)
2296 {
2297         unsigned int result;
2298         int i;
2299
2300         if (sony_call_snc_handle(0x0119, 0x0000, &result))
2301                 return -EIO;
2302
2303         lid_ctl = kzalloc(sizeof(struct snc_lid_resume_control), GFP_KERNEL);
2304         if (!lid_ctl)
2305                 return -ENOMEM;
2306
2307         lid_ctl->status = result & 0x7;
2308
2309         sysfs_attr_init(&lid_ctl->attrs[0].attr);
2310         lid_ctl->attrs[0].attr.name = "lid_resume_S3";
2311         lid_ctl->attrs[0].attr.mode = S_IRUGO | S_IWUSR;
2312         lid_ctl->attrs[0].show = sony_nc_lid_resume_show;
2313         lid_ctl->attrs[0].store = sony_nc_lid_resume_store;
2314
2315         sysfs_attr_init(&lid_ctl->attrs[1].attr);
2316         lid_ctl->attrs[1].attr.name = "lid_resume_S4";
2317         lid_ctl->attrs[1].attr.mode = S_IRUGO | S_IWUSR;
2318         lid_ctl->attrs[1].show = sony_nc_lid_resume_show;
2319         lid_ctl->attrs[1].store = sony_nc_lid_resume_store;
2320
2321         sysfs_attr_init(&lid_ctl->attrs[2].attr);
2322         lid_ctl->attrs[2].attr.name = "lid_resume_S5";
2323         lid_ctl->attrs[2].attr.mode = S_IRUGO | S_IWUSR;
2324         lid_ctl->attrs[2].show = sony_nc_lid_resume_show;
2325         lid_ctl->attrs[2].store = sony_nc_lid_resume_store;
2326
2327         for (i = 0; i < 3; i++) {
2328                 result = device_create_file(&pd->dev, &lid_ctl->attrs[i]);
2329                 if (result)
2330                         goto liderror;
2331         }
2332
2333         return 0;
2334
2335 liderror:
2336         for (; i > 0; i--)
2337                 device_remove_file(&pd->dev, &lid_ctl->attrs[i]);
2338
2339         kfree(lid_ctl);
2340         lid_ctl = NULL;
2341
2342         return result;
2343 }
2344
2345 static void sony_nc_lid_resume_cleanup(struct platform_device *pd)
2346 {
2347         int i;
2348
2349         if (lid_ctl) {
2350                 for (i = 0; i < 3; i++)
2351                         device_remove_file(&pd->dev, &lid_ctl->attrs[i]);
2352
2353                 kfree(lid_ctl);
2354                 lid_ctl = NULL;
2355         }
2356 }
2357
2358 /* High speed charging function */
2359 static struct device_attribute *hsc_handle;
2360
2361 static ssize_t sony_nc_highspeed_charging_store(struct device *dev,
2362                 struct device_attribute *attr,
2363                 const char *buffer, size_t count)
2364 {
2365         unsigned int result;
2366         unsigned long value;
2367
2368         if (count > 31)
2369                 return -EINVAL;
2370
2371         if (kstrtoul(buffer, 10, &value) || value > 1)
2372                 return -EINVAL;
2373
2374         if (sony_call_snc_handle(0x0131, value << 0x10 | 0x0200, &result))
2375                 return -EIO;
2376
2377         return count;
2378 }
2379
2380 static ssize_t sony_nc_highspeed_charging_show(struct device *dev,
2381                 struct device_attribute *attr, char *buffer)
2382 {
2383         unsigned int result;
2384
2385         if (sony_call_snc_handle(0x0131, 0x0100, &result))
2386                 return -EIO;
2387
2388         return snprintf(buffer, PAGE_SIZE, "%d\n", result & 0x01);
2389 }
2390
2391 static int sony_nc_highspeed_charging_setup(struct platform_device *pd)
2392 {
2393         unsigned int result;
2394
2395         if (sony_call_snc_handle(0x0131, 0x0000, &result) || !(result & 0x01)) {
2396                 /* some models advertise the handle but have no implementation
2397                  * for it
2398                  */
2399                 pr_info("No High Speed Charging capability found\n");
2400                 return 0;
2401         }
2402
2403         hsc_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2404         if (!hsc_handle)
2405                 return -ENOMEM;
2406
2407         sysfs_attr_init(&hsc_handle->attr);
2408         hsc_handle->attr.name = "battery_highspeed_charging";
2409         hsc_handle->attr.mode = S_IRUGO | S_IWUSR;
2410         hsc_handle->show = sony_nc_highspeed_charging_show;
2411         hsc_handle->store = sony_nc_highspeed_charging_store;
2412
2413         result = device_create_file(&pd->dev, hsc_handle);
2414         if (result) {
2415                 kfree(hsc_handle);
2416                 hsc_handle = NULL;
2417                 return result;
2418         }
2419
2420         return 0;
2421 }
2422
2423 static void sony_nc_highspeed_charging_cleanup(struct platform_device *pd)
2424 {
2425         if (hsc_handle) {
2426                 device_remove_file(&pd->dev, hsc_handle);
2427                 kfree(hsc_handle);
2428                 hsc_handle = NULL;
2429         }
2430 }
2431
2432 /* Touchpad enable/disable */
2433 struct touchpad_control {
2434         struct device_attribute attr;
2435         int handle;
2436 };
2437 static struct touchpad_control *tp_ctl;
2438
2439 static ssize_t sony_nc_touchpad_store(struct device *dev,
2440                 struct device_attribute *attr, const char *buffer, size_t count)
2441 {
2442         unsigned int result;
2443         unsigned long value;
2444
2445         if (count > 31)
2446                 return -EINVAL;
2447
2448         if (kstrtoul(buffer, 10, &value) || value > 1)
2449                 return -EINVAL;
2450
2451         /* sysfs: 0 disabled, 1 enabled
2452          * EC: 0 enabled, 1 disabled
2453          */
2454         if (sony_call_snc_handle(tp_ctl->handle,
2455                                 (!value << 0x10) | 0x100, &result))
2456                 return -EIO;
2457
2458         return count;
2459 }
2460
2461 static ssize_t sony_nc_touchpad_show(struct device *dev,
2462                 struct device_attribute *attr, char *buffer)
2463 {
2464         unsigned int result;
2465
2466         if (sony_call_snc_handle(tp_ctl->handle, 0x000, &result))
2467                 return -EINVAL;
2468
2469         return snprintf(buffer, PAGE_SIZE, "%d\n", !(result & 0x01));
2470 }
2471
2472 static int sony_nc_touchpad_setup(struct platform_device *pd,
2473                 unsigned int handle)
2474 {
2475         int ret = 0;
2476
2477         tp_ctl = kzalloc(sizeof(struct touchpad_control), GFP_KERNEL);
2478         if (!tp_ctl)
2479                 return -ENOMEM;
2480
2481         tp_ctl->handle = handle;
2482
2483         sysfs_attr_init(&tp_ctl->attr.attr);
2484         tp_ctl->attr.attr.name = "touchpad";
2485         tp_ctl->attr.attr.mode = S_IRUGO | S_IWUSR;
2486         tp_ctl->attr.show = sony_nc_touchpad_show;
2487         tp_ctl->attr.store = sony_nc_touchpad_store;
2488
2489         ret = device_create_file(&pd->dev, &tp_ctl->attr);
2490         if (ret) {
2491                 kfree(tp_ctl);
2492                 tp_ctl = NULL;
2493         }
2494
2495         return ret;
2496 }
2497
2498 static void sony_nc_touchpad_cleanup(struct platform_device *pd)
2499 {
2500         if (tp_ctl) {
2501                 device_remove_file(&pd->dev, &tp_ctl->attr);
2502                 kfree(tp_ctl);
2503                 tp_ctl = NULL;
2504         }
2505 }
2506
2507 static void sony_nc_backlight_ng_read_limits(int handle,
2508                 struct sony_backlight_props *props)
2509 {
2510         u64 offset;
2511         int i;
2512         int lvl_table_len = 0;
2513         u8 min = 0xff, max = 0x00;
2514         unsigned char buffer[32] = { 0 };
2515
2516         props->handle = handle;
2517         props->offset = 0;
2518         props->maxlvl = 0xff;
2519
2520         offset = sony_find_snc_handle(handle);
2521
2522         /* try to read the boundaries from ACPI tables, if we fail the above
2523          * defaults should be reasonable
2524          */
2525         i = sony_nc_buffer_call(sony_nc_acpi_handle, "SN06", &offset, buffer,
2526                         32);
2527         if (i < 0)
2528                 return;
2529
2530         switch (handle) {
2531         case 0x012f:
2532         case 0x0137:
2533                 lvl_table_len = 9;
2534                 break;
2535         case 0x143:
2536                 lvl_table_len = 16;
2537                 break;
2538         }
2539
2540         /* the buffer lists brightness levels available, brightness levels are
2541          * from position 0 to 8 in the array, other values are used by ALS
2542          * control.
2543          */
2544         for (i = 0; i < lvl_table_len && i < ARRAY_SIZE(buffer); i++) {
2545
2546                 dprintk("Brightness level: %d\n", buffer[i]);
2547
2548                 if (!buffer[i])
2549                         break;
2550
2551                 if (buffer[i] > max)
2552                         max = buffer[i];
2553                 if (buffer[i] < min)
2554                         min = buffer[i];
2555         }
2556         props->offset = min;
2557         props->maxlvl = max;
2558         dprintk("Brightness levels: min=%d max=%d\n", props->offset,
2559                         props->maxlvl);
2560 }
2561
2562 static void sony_nc_backlight_setup(void)
2563 {
2564         acpi_handle unused;
2565         int max_brightness = 0;
2566         const struct backlight_ops *ops = NULL;
2567         struct backlight_properties props;
2568
2569         if (sony_find_snc_handle(0x12f) >= 0) {
2570                 ops = &sony_backlight_ng_ops;
2571                 sony_bl_props.cmd_base = 0x0100;
2572                 sony_nc_backlight_ng_read_limits(0x12f, &sony_bl_props);
2573                 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
2574
2575         } else if (sony_find_snc_handle(0x137) >= 0) {
2576                 ops = &sony_backlight_ng_ops;
2577                 sony_bl_props.cmd_base = 0x0100;
2578                 sony_nc_backlight_ng_read_limits(0x137, &sony_bl_props);
2579                 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
2580
2581         } else if (sony_find_snc_handle(0x143) >= 0) {
2582                 ops = &sony_backlight_ng_ops;
2583                 sony_bl_props.cmd_base = 0x3000;
2584                 sony_nc_backlight_ng_read_limits(0x143, &sony_bl_props);
2585                 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
2586
2587         } else if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT",
2588                                                 &unused))) {
2589                 ops = &sony_backlight_ops;
2590                 max_brightness = SONY_MAX_BRIGHTNESS - 1;
2591
2592         } else
2593                 return;
2594
2595         memset(&props, 0, sizeof(struct backlight_properties));
2596         props.type = BACKLIGHT_PLATFORM;
2597         props.max_brightness = max_brightness;
2598         sony_bl_props.dev = backlight_device_register("sony", NULL,
2599                                                       &sony_bl_props,
2600                                                       ops, &props);
2601
2602         if (IS_ERR(sony_bl_props.dev)) {
2603                 pr_warn("unable to register backlight device\n");
2604                 sony_bl_props.dev = NULL;
2605         } else
2606                 sony_bl_props.dev->props.brightness =
2607                         ops->get_brightness(sony_bl_props.dev);
2608 }
2609
2610 static void sony_nc_backlight_cleanup(void)
2611 {
2612         if (sony_bl_props.dev)
2613                 backlight_device_unregister(sony_bl_props.dev);
2614 }
2615
2616 static int sony_nc_add(struct acpi_device *device)
2617 {
2618         acpi_status status;
2619         int result = 0;
2620         acpi_handle handle;
2621         struct sony_nc_value *item;
2622
2623         pr_info("%s v%s\n", SONY_NC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
2624
2625         sony_nc_acpi_device = device;
2626         strcpy(acpi_device_class(device), "sony/hotkey");
2627
2628         sony_nc_acpi_handle = device->handle;
2629
2630         /* read device status */
2631         result = acpi_bus_get_status(device);
2632         /* bail IFF the above call was successful and the device is not present */
2633         if (!result && !device->status.present) {
2634                 dprintk("Device not present\n");
2635                 result = -ENODEV;
2636                 goto outwalk;
2637         }
2638
2639         result = sony_pf_add();
2640         if (result)
2641                 goto outpresent;
2642
2643         if (debug) {
2644                 status = acpi_walk_namespace(ACPI_TYPE_METHOD,
2645                                 sony_nc_acpi_handle, 1, sony_walk_callback,
2646                                 NULL, NULL, NULL);
2647                 if (ACPI_FAILURE(status)) {
2648                         pr_warn("unable to walk acpi resources\n");
2649                         result = -ENODEV;
2650                         goto outpresent;
2651                 }
2652         }
2653
2654         result = sony_laptop_setup_input(device);
2655         if (result) {
2656                 pr_err("Unable to create input devices\n");
2657                 goto outplatform;
2658         }
2659
2660         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "ECON",
2661                                          &handle))) {
2662                 int arg = 1;
2663                 if (sony_nc_int_call(sony_nc_acpi_handle, "ECON", &arg, NULL))
2664                         dprintk("ECON Method failed\n");
2665         }
2666
2667         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "SN00",
2668                                          &handle))) {
2669                 dprintk("Doing SNC setup\n");
2670                 /* retrieve the available handles */
2671                 result = sony_nc_handles_setup(sony_pf_device);
2672                 if (!result)
2673                         sony_nc_function_setup(device, sony_pf_device);
2674         }
2675
2676         /* setup input devices and helper fifo */
2677         if (acpi_video_backlight_support()) {
2678                 pr_info("brightness ignored, must be controlled by ACPI video driver\n");
2679         } else {
2680                 sony_nc_backlight_setup();
2681         }
2682
2683         /* create sony_pf sysfs attributes related to the SNC device */
2684         for (item = sony_nc_values; item->name; ++item) {
2685
2686                 if (!debug && item->debug)
2687                         continue;
2688
2689                 /* find the available acpiget as described in the DSDT */
2690                 for (; item->acpiget && *item->acpiget; ++item->acpiget) {
2691                         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
2692                                                          *item->acpiget,
2693                                                          &handle))) {
2694                                 dprintk("Found %s getter: %s\n",
2695                                                 item->name, *item->acpiget);
2696                                 item->devattr.attr.mode |= S_IRUGO;
2697                                 break;
2698                         }
2699                 }
2700
2701                 /* find the available acpiset as described in the DSDT */
2702                 for (; item->acpiset && *item->acpiset; ++item->acpiset) {
2703                         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
2704                                                          *item->acpiset,
2705                                                          &handle))) {
2706                                 dprintk("Found %s setter: %s\n",
2707                                                 item->name, *item->acpiset);
2708                                 item->devattr.attr.mode |= S_IWUSR;
2709                                 break;
2710                         }
2711                 }
2712
2713                 if (item->devattr.attr.mode != 0) {
2714                         result =
2715                             device_create_file(&sony_pf_device->dev,
2716                                                &item->devattr);
2717                         if (result)
2718                                 goto out_sysfs;
2719                 }
2720         }
2721
2722         return 0;
2723
2724 out_sysfs:
2725         for (item = sony_nc_values; item->name; ++item) {
2726                 device_remove_file(&sony_pf_device->dev, &item->devattr);
2727         }
2728         sony_nc_backlight_cleanup();
2729         sony_nc_function_cleanup(sony_pf_device);
2730         sony_nc_handles_cleanup(sony_pf_device);
2731
2732 outplatform:
2733         sony_laptop_remove_input();
2734
2735 outpresent:
2736         sony_pf_remove();
2737
2738 outwalk:
2739         sony_nc_rfkill_cleanup();
2740         return result;
2741 }
2742
2743 static int sony_nc_remove(struct acpi_device *device)
2744 {
2745         struct sony_nc_value *item;
2746
2747         sony_nc_backlight_cleanup();
2748
2749         sony_nc_acpi_device = NULL;
2750
2751         for (item = sony_nc_values; item->name; ++item) {
2752                 device_remove_file(&sony_pf_device->dev, &item->devattr);
2753         }
2754
2755         sony_nc_function_cleanup(sony_pf_device);
2756         sony_nc_handles_cleanup(sony_pf_device);
2757         sony_pf_remove();
2758         sony_laptop_remove_input();
2759         dprintk(SONY_NC_DRIVER_NAME " removed.\n");
2760
2761         return 0;
2762 }
2763
2764 static const struct acpi_device_id sony_device_ids[] = {
2765         {SONY_NC_HID, 0},
2766         {SONY_PIC_HID, 0},
2767         {"", 0},
2768 };
2769 MODULE_DEVICE_TABLE(acpi, sony_device_ids);
2770
2771 static const struct acpi_device_id sony_nc_device_ids[] = {
2772         {SONY_NC_HID, 0},
2773         {"", 0},
2774 };
2775
2776 static struct acpi_driver sony_nc_driver = {
2777         .name = SONY_NC_DRIVER_NAME,
2778         .class = SONY_NC_CLASS,
2779         .ids = sony_nc_device_ids,
2780         .owner = THIS_MODULE,
2781         .ops = {
2782                 .add = sony_nc_add,
2783                 .remove = sony_nc_remove,
2784                 .notify = sony_nc_notify,
2785                 },
2786         .drv.pm = &sony_nc_pm,
2787 };
2788
2789 /*********** SPIC (SNY6001) Device ***********/
2790
2791 #define SONYPI_DEVICE_TYPE1     0x00000001
2792 #define SONYPI_DEVICE_TYPE2     0x00000002
2793 #define SONYPI_DEVICE_TYPE3     0x00000004
2794
2795 #define SONYPI_TYPE1_OFFSET     0x04
2796 #define SONYPI_TYPE2_OFFSET     0x12
2797 #define SONYPI_TYPE3_OFFSET     0x12
2798
2799 struct sony_pic_ioport {
2800         struct acpi_resource_io io1;
2801         struct acpi_resource_io io2;
2802         struct list_head        list;
2803 };
2804
2805 struct sony_pic_irq {
2806         struct acpi_resource_irq        irq;
2807         struct list_head                list;
2808 };
2809
2810 struct sonypi_eventtypes {
2811         u8                      data;
2812         unsigned long           mask;
2813         struct sonypi_event     *events;
2814 };
2815
2816 struct sony_pic_dev {
2817         struct acpi_device              *acpi_dev;
2818         struct sony_pic_irq             *cur_irq;
2819         struct sony_pic_ioport          *cur_ioport;
2820         struct list_head                interrupts;
2821         struct list_head                ioports;
2822         struct mutex                    lock;
2823         struct sonypi_eventtypes        *event_types;
2824         int                             (*handle_irq)(const u8, const u8);
2825         int                             model;
2826         u16                             evport_offset;
2827         u8                              camera_power;
2828         u8                              bluetooth_power;
2829         u8                              wwan_power;
2830 };
2831
2832 static struct sony_pic_dev spic_dev = {
2833         .interrupts     = LIST_HEAD_INIT(spic_dev.interrupts),
2834         .ioports        = LIST_HEAD_INIT(spic_dev.ioports),
2835 };
2836
2837 static int spic_drv_registered;
2838
2839 /* Event masks */
2840 #define SONYPI_JOGGER_MASK                      0x00000001
2841 #define SONYPI_CAPTURE_MASK                     0x00000002
2842 #define SONYPI_FNKEY_MASK                       0x00000004
2843 #define SONYPI_BLUETOOTH_MASK                   0x00000008
2844 #define SONYPI_PKEY_MASK                        0x00000010
2845 #define SONYPI_BACK_MASK                        0x00000020
2846 #define SONYPI_HELP_MASK                        0x00000040
2847 #define SONYPI_LID_MASK                         0x00000080
2848 #define SONYPI_ZOOM_MASK                        0x00000100
2849 #define SONYPI_THUMBPHRASE_MASK                 0x00000200
2850 #define SONYPI_MEYE_MASK                        0x00000400
2851 #define SONYPI_MEMORYSTICK_MASK                 0x00000800
2852 #define SONYPI_BATTERY_MASK                     0x00001000
2853 #define SONYPI_WIRELESS_MASK                    0x00002000
2854
2855 struct sonypi_event {
2856         u8      data;
2857         u8      event;
2858 };
2859
2860 /* The set of possible button release events */
2861 static struct sonypi_event sonypi_releaseev[] = {
2862         { 0x00, SONYPI_EVENT_ANYBUTTON_RELEASED },
2863         { 0, 0 }
2864 };
2865
2866 /* The set of possible jogger events  */
2867 static struct sonypi_event sonypi_joggerev[] = {
2868         { 0x1f, SONYPI_EVENT_JOGDIAL_UP },
2869         { 0x01, SONYPI_EVENT_JOGDIAL_DOWN },
2870         { 0x5f, SONYPI_EVENT_JOGDIAL_UP_PRESSED },
2871         { 0x41, SONYPI_EVENT_JOGDIAL_DOWN_PRESSED },
2872         { 0x1e, SONYPI_EVENT_JOGDIAL_FAST_UP },
2873         { 0x02, SONYPI_EVENT_JOGDIAL_FAST_DOWN },
2874         { 0x5e, SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED },
2875         { 0x42, SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED },
2876         { 0x1d, SONYPI_EVENT_JOGDIAL_VFAST_UP },
2877         { 0x03, SONYPI_EVENT_JOGDIAL_VFAST_DOWN },
2878         { 0x5d, SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED },
2879         { 0x43, SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED },
2880         { 0x40, SONYPI_EVENT_JOGDIAL_PRESSED },
2881         { 0, 0 }
2882 };
2883
2884 /* The set of possible capture button events */
2885 static struct sonypi_event sonypi_captureev[] = {
2886         { 0x05, SONYPI_EVENT_CAPTURE_PARTIALPRESSED },
2887         { 0x07, SONYPI_EVENT_CAPTURE_PRESSED },
2888         { 0x40, SONYPI_EVENT_CAPTURE_PRESSED },
2889         { 0x01, SONYPI_EVENT_CAPTURE_PARTIALRELEASED },
2890         { 0, 0 }
2891 };
2892
2893 /* The set of possible fnkeys events */
2894 static struct sonypi_event sonypi_fnkeyev[] = {
2895         { 0x10, SONYPI_EVENT_FNKEY_ESC },
2896         { 0x11, SONYPI_EVENT_FNKEY_F1 },
2897         { 0x12, SONYPI_EVENT_FNKEY_F2 },
2898         { 0x13, SONYPI_EVENT_FNKEY_F3 },
2899         { 0x14, SONYPI_EVENT_FNKEY_F4 },
2900         { 0x15, SONYPI_EVENT_FNKEY_F5 },
2901         { 0x16, SONYPI_EVENT_FNKEY_F6 },
2902         { 0x17, SONYPI_EVENT_FNKEY_F7 },
2903         { 0x18, SONYPI_EVENT_FNKEY_F8 },
2904         { 0x19, SONYPI_EVENT_FNKEY_F9 },
2905         { 0x1a, SONYPI_EVENT_FNKEY_F10 },
2906         { 0x1b, SONYPI_EVENT_FNKEY_F11 },
2907         { 0x1c, SONYPI_EVENT_FNKEY_F12 },
2908         { 0x1f, SONYPI_EVENT_FNKEY_RELEASED },
2909         { 0x21, SONYPI_EVENT_FNKEY_1 },
2910         { 0x22, SONYPI_EVENT_FNKEY_2 },
2911         { 0x31, SONYPI_EVENT_FNKEY_D },
2912         { 0x32, SONYPI_EVENT_FNKEY_E },
2913         { 0x33, SONYPI_EVENT_FNKEY_F },
2914         { 0x34, SONYPI_EVENT_FNKEY_S },
2915         { 0x35, SONYPI_EVENT_FNKEY_B },
2916         { 0x36, SONYPI_EVENT_FNKEY_ONLY },
2917         { 0, 0 }
2918 };
2919
2920 /* The set of possible program key events */
2921 static struct sonypi_event sonypi_pkeyev[] = {
2922         { 0x01, SONYPI_EVENT_PKEY_P1 },
2923         { 0x02, SONYPI_EVENT_PKEY_P2 },
2924         { 0x04, SONYPI_EVENT_PKEY_P3 },
2925         { 0x20, SONYPI_EVENT_PKEY_P1 },
2926         { 0, 0 }
2927 };
2928
2929 /* The set of possible bluetooth events */
2930 static struct sonypi_event sonypi_blueev[] = {
2931         { 0x55, SONYPI_EVENT_BLUETOOTH_PRESSED },
2932         { 0x59, SONYPI_EVENT_BLUETOOTH_ON },
2933         { 0x5a, SONYPI_EVENT_BLUETOOTH_OFF },
2934         { 0, 0 }
2935 };
2936
2937 /* The set of possible wireless events */
2938 static struct sonypi_event sonypi_wlessev[] = {
2939         { 0x59, SONYPI_EVENT_IGNORE },
2940         { 0x5a, SONYPI_EVENT_IGNORE },
2941         { 0, 0 }
2942 };
2943
2944 /* The set of possible back button events */
2945 static struct sonypi_event sonypi_backev[] = {
2946         { 0x20, SONYPI_EVENT_BACK_PRESSED },
2947         { 0, 0 }
2948 };
2949
2950 /* The set of possible help button events */
2951 static struct sonypi_event sonypi_helpev[] = {
2952         { 0x3b, SONYPI_EVENT_HELP_PRESSED },
2953         { 0, 0 }
2954 };
2955
2956
2957 /* The set of possible lid events */
2958 static struct sonypi_event sonypi_lidev[] = {
2959         { 0x51, SONYPI_EVENT_LID_CLOSED },
2960         { 0x50, SONYPI_EVENT_LID_OPENED },
2961         { 0, 0 }
2962 };
2963
2964 /* The set of possible zoom events */
2965 static struct sonypi_event sonypi_zoomev[] = {
2966         { 0x39, SONYPI_EVENT_ZOOM_PRESSED },
2967         { 0x10, SONYPI_EVENT_ZOOM_IN_PRESSED },
2968         { 0x20, SONYPI_EVENT_ZOOM_OUT_PRESSED },
2969         { 0x04, SONYPI_EVENT_ZOOM_PRESSED },
2970         { 0, 0 }
2971 };
2972
2973 /* The set of possible thumbphrase events */
2974 static struct sonypi_event sonypi_thumbphraseev[] = {
2975         { 0x3a, SONYPI_EVENT_THUMBPHRASE_PRESSED },
2976         { 0, 0 }
2977 };
2978
2979 /* The set of possible motioneye camera events */
2980 static struct sonypi_event sonypi_meyeev[] = {
2981         { 0x00, SONYPI_EVENT_MEYE_FACE },
2982         { 0x01, SONYPI_EVENT_MEYE_OPPOSITE },
2983         { 0, 0 }
2984 };
2985
2986 /* The set of possible memorystick events */
2987 static struct sonypi_event sonypi_memorystickev[] = {
2988         { 0x53, SONYPI_EVENT_MEMORYSTICK_INSERT },
2989         { 0x54, SONYPI_EVENT_MEMORYSTICK_EJECT },
2990         { 0, 0 }
2991 };
2992
2993 /* The set of possible battery events */
2994 static struct sonypi_event sonypi_batteryev[] = {
2995         { 0x20, SONYPI_EVENT_BATTERY_INSERT },
2996         { 0x30, SONYPI_EVENT_BATTERY_REMOVE },
2997         { 0, 0 }
2998 };
2999
3000 /* The set of possible volume events */
3001 static struct sonypi_event sonypi_volumeev[] = {
3002         { 0x01, SONYPI_EVENT_VOLUME_INC_PRESSED },
3003         { 0x02, SONYPI_EVENT_VOLUME_DEC_PRESSED },
3004         { 0, 0 }
3005 };
3006
3007 /* The set of possible brightness events */
3008 static struct sonypi_event sonypi_brightnessev[] = {
3009         { 0x80, SONYPI_EVENT_BRIGHTNESS_PRESSED },
3010         { 0, 0 }
3011 };
3012
3013 static struct sonypi_eventtypes type1_events[] = {
3014         { 0, 0xffffffff, sonypi_releaseev },
3015         { 0x70, SONYPI_MEYE_MASK, sonypi_meyeev },
3016         { 0x30, SONYPI_LID_MASK, sonypi_lidev },
3017         { 0x60, SONYPI_CAPTURE_MASK, sonypi_captureev },
3018         { 0x10, SONYPI_JOGGER_MASK, sonypi_joggerev },
3019         { 0x20, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
3020         { 0x30, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
3021         { 0x40, SONYPI_PKEY_MASK, sonypi_pkeyev },
3022         { 0x30, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
3023         { 0x40, SONYPI_BATTERY_MASK, sonypi_batteryev },
3024         { 0 },
3025 };
3026 static struct sonypi_eventtypes type2_events[] = {
3027         { 0, 0xffffffff, sonypi_releaseev },
3028         { 0x38, SONYPI_LID_MASK, sonypi_lidev },
3029         { 0x11, SONYPI_JOGGER_MASK, sonypi_joggerev },
3030         { 0x61, SONYPI_CAPTURE_MASK, sonypi_captureev },
3031         { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
3032         { 0x31, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
3033         { 0x08, SONYPI_PKEY_MASK, sonypi_pkeyev },
3034         { 0x11, SONYPI_BACK_MASK, sonypi_backev },
3035         { 0x21, SONYPI_HELP_MASK, sonypi_helpev },
3036         { 0x21, SONYPI_ZOOM_MASK, sonypi_zoomev },
3037         { 0x20, SONYPI_THUMBPHRASE_MASK, sonypi_thumbphraseev },
3038         { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
3039         { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
3040         { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
3041         { 0 },
3042 };
3043 static struct sonypi_eventtypes type3_events[] = {
3044         { 0, 0xffffffff, sonypi_releaseev },
3045         { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
3046         { 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
3047         { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
3048         { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
3049         { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
3050         { 0x05, SONYPI_PKEY_MASK, sonypi_pkeyev },
3051         { 0x05, SONYPI_ZOOM_MASK, sonypi_zoomev },
3052         { 0x05, SONYPI_CAPTURE_MASK, sonypi_captureev },
3053         { 0x05, SONYPI_PKEY_MASK, sonypi_volumeev },
3054         { 0x05, SONYPI_PKEY_MASK, sonypi_brightnessev },
3055         { 0 },
3056 };
3057
3058 /* low level spic calls */
3059 #define ITERATIONS_LONG         10000
3060 #define ITERATIONS_SHORT        10
3061 #define wait_on_command(command, iterations) {                          \
3062         unsigned int n = iterations;                                    \
3063         while (--n && (command))                                        \
3064                 udelay(1);                                              \
3065         if (!n)                                                         \
3066                 dprintk("command failed at %s : %s (line %d)\n",        \
3067                                 __FILE__, __func__, __LINE__);  \
3068 }
3069
3070 static u8 sony_pic_call1(u8 dev)
3071 {
3072         u8 v1, v2;
3073
3074         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
3075                         ITERATIONS_LONG);
3076         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
3077         v1 = inb_p(spic_dev.cur_ioport->io1.minimum + 4);
3078         v2 = inb_p(spic_dev.cur_ioport->io1.minimum);
3079         dprintk("sony_pic_call1(0x%.2x): 0x%.4x\n", dev, (v2 << 8) | v1);
3080         return v2;
3081 }
3082
3083 static u8 sony_pic_call2(u8 dev, u8 fn)
3084 {
3085         u8 v1;
3086
3087         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
3088                         ITERATIONS_LONG);
3089         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
3090         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
3091                         ITERATIONS_LONG);
3092         outb(fn, spic_dev.cur_ioport->io1.minimum);
3093         v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
3094         dprintk("sony_pic_call2(0x%.2x - 0x%.2x): 0x%.4x\n", dev, fn, v1);
3095         return v1;
3096 }
3097
3098 static u8 sony_pic_call3(u8 dev, u8 fn, u8 v)
3099 {
3100         u8 v1;
3101
3102         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
3103         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
3104         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
3105         outb(fn, spic_dev.cur_ioport->io1.minimum);
3106         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
3107         outb(v, spic_dev.cur_ioport->io1.minimum);
3108         v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
3109         dprintk("sony_pic_call3(0x%.2x - 0x%.2x - 0x%.2x): 0x%.4x\n",
3110                         dev, fn, v, v1);
3111         return v1;
3112 }
3113
3114 /*
3115  * minidrivers for SPIC models
3116  */
3117 static int type3_handle_irq(const u8 data_mask, const u8 ev)
3118 {
3119         /*
3120          * 0x31 could mean we have to take some extra action and wait for
3121          * the next irq for some Type3 models, it will generate a new
3122          * irq and we can read new data from the device:
3123          *  - 0x5c and 0x5f requires 0xA0
3124          *  - 0x61 requires 0xB3
3125          */
3126         if (data_mask == 0x31) {
3127                 if (ev == 0x5c || ev == 0x5f)
3128                         sony_pic_call1(0xA0);
3129                 else if (ev == 0x61)
3130                         sony_pic_call1(0xB3);
3131                 return 0;
3132         }
3133         return 1;
3134 }
3135
3136 static void sony_pic_detect_device_type(struct sony_pic_dev *dev)
3137 {
3138         struct pci_dev *pcidev;
3139
3140         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3141                         PCI_DEVICE_ID_INTEL_82371AB_3, NULL);
3142         if (pcidev) {
3143                 dev->model = SONYPI_DEVICE_TYPE1;
3144                 dev->evport_offset = SONYPI_TYPE1_OFFSET;
3145                 dev->event_types = type1_events;
3146                 goto out;
3147         }
3148
3149         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3150                         PCI_DEVICE_ID_INTEL_ICH6_1, NULL);
3151         if (pcidev) {
3152                 dev->model = SONYPI_DEVICE_TYPE2;
3153                 dev->evport_offset = SONYPI_TYPE2_OFFSET;
3154                 dev->event_types = type2_events;
3155                 goto out;
3156         }
3157
3158         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3159                         PCI_DEVICE_ID_INTEL_ICH7_1, NULL);
3160         if (pcidev) {
3161                 dev->model = SONYPI_DEVICE_TYPE3;
3162                 dev->handle_irq = type3_handle_irq;
3163                 dev->evport_offset = SONYPI_TYPE3_OFFSET;
3164                 dev->event_types = type3_events;
3165                 goto out;
3166         }
3167
3168         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3169                         PCI_DEVICE_ID_INTEL_ICH8_4, NULL);
3170         if (pcidev) {
3171                 dev->model = SONYPI_DEVICE_TYPE3;
3172                 dev->handle_irq = type3_handle_irq;
3173                 dev->evport_offset = SONYPI_TYPE3_OFFSET;
3174                 dev->event_types = type3_events;
3175                 goto out;
3176         }
3177
3178         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3179                         PCI_DEVICE_ID_INTEL_ICH9_1, NULL);
3180         if (pcidev) {
3181                 dev->model = SONYPI_DEVICE_TYPE3;
3182                 dev->handle_irq = type3_handle_irq;
3183                 dev->evport_offset = SONYPI_TYPE3_OFFSET;
3184                 dev->event_types = type3_events;
3185                 goto out;
3186         }
3187
3188         /* default */
3189         dev->model = SONYPI_DEVICE_TYPE2;
3190         dev->evport_offset = SONYPI_TYPE2_OFFSET;
3191         dev->event_types = type2_events;
3192
3193 out:
3194         if (pcidev)
3195                 pci_dev_put(pcidev);
3196
3197         pr_info("detected Type%d model\n",
3198                 dev->model == SONYPI_DEVICE_TYPE1 ? 1 :
3199                 dev->model == SONYPI_DEVICE_TYPE2 ? 2 : 3);
3200 }
3201
3202 /* camera tests and poweron/poweroff */
3203 #define SONYPI_CAMERA_PICTURE           5
3204 #define SONYPI_CAMERA_CONTROL           0x10
3205
3206 #define SONYPI_CAMERA_BRIGHTNESS                0
3207 #define SONYPI_CAMERA_CONTRAST                  1
3208 #define SONYPI_CAMERA_HUE                       2
3209 #define SONYPI_CAMERA_COLOR                     3
3210 #define SONYPI_CAMERA_SHARPNESS                 4
3211
3212 #define SONYPI_CAMERA_EXPOSURE_MASK             0xC
3213 #define SONYPI_CAMERA_WHITE_BALANCE_MASK        0x3
3214 #define SONYPI_CAMERA_PICTURE_MODE_MASK         0x30
3215 #define SONYPI_CAMERA_MUTE_MASK                 0x40
3216
3217 /* the rest don't need a loop until not 0xff */
3218 #define SONYPI_CAMERA_AGC                       6
3219 #define SONYPI_CAMERA_AGC_MASK                  0x30
3220 #define SONYPI_CAMERA_SHUTTER_MASK              0x7
3221
3222 #define SONYPI_CAMERA_SHUTDOWN_REQUEST          7
3223 #define SONYPI_CAMERA_CONTROL                   0x10
3224
3225 #define SONYPI_CAMERA_STATUS                    7
3226 #define SONYPI_CAMERA_STATUS_READY              0x2
3227 #define SONYPI_CAMERA_STATUS_POSITION           0x4
3228
3229 #define SONYPI_DIRECTION_BACKWARDS              0x4
3230
3231 #define SONYPI_CAMERA_REVISION                  8
3232 #define SONYPI_CAMERA_ROMVERSION                9
3233
3234 static int __sony_pic_camera_ready(void)
3235 {
3236         u8 v;
3237
3238         v = sony_pic_call2(0x8f, SONYPI_CAMERA_STATUS);
3239         return (v != 0xff && (v & SONYPI_CAMERA_STATUS_READY));
3240 }
3241
3242 static int __sony_pic_camera_off(void)
3243 {
3244         if (!camera) {
3245                 pr_warn("camera control not enabled\n");
3246                 return -ENODEV;
3247         }
3248
3249         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE,
3250                                 SONYPI_CAMERA_MUTE_MASK),
3251                         ITERATIONS_SHORT);
3252
3253         if (spic_dev.camera_power) {
3254                 sony_pic_call2(0x91, 0);
3255                 spic_dev.camera_power = 0;
3256         }
3257         return 0;
3258 }
3259
3260 static int __sony_pic_camera_on(void)
3261 {
3262         int i, j, x;
3263
3264         if (!camera) {
3265                 pr_warn("camera control not enabled\n");
3266                 return -ENODEV;
3267         }
3268
3269         if (spic_dev.camera_power)
3270                 return 0;
3271
3272         for (j = 5; j > 0; j--) {
3273
3274                 for (x = 0; x < 100 && sony_pic_call2(0x91, 0x1); x++)
3275                         msleep(10);
3276                 sony_pic_call1(0x93);
3277
3278                 for (i = 400; i > 0; i--) {
3279                         if (__sony_pic_camera_ready())
3280                                 break;
3281                         msleep(10);
3282                 }
3283                 if (i)
3284                         break;
3285         }
3286
3287         if (j == 0) {
3288                 pr_warn("failed to power on camera\n");
3289                 return -ENODEV;
3290         }
3291
3292         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTROL,
3293                                 0x5a),
3294                         ITERATIONS_SHORT);
3295
3296         spic_dev.camera_power = 1;
3297         return 0;
3298 }
3299
3300 /* External camera command (exported to the motion eye v4l driver) */
3301 int sony_pic_camera_command(int command, u8 value)
3302 {
3303         if (!camera)
3304                 return -EIO;
3305
3306         mutex_lock(&spic_dev.lock);
3307
3308         switch (command) {
3309         case SONY_PIC_COMMAND_SETCAMERA:
3310                 if (value)
3311                         __sony_pic_camera_on();
3312                 else
3313                         __sony_pic_camera_off();
3314                 break;
3315         case SONY_PIC_COMMAND_SETCAMERABRIGHTNESS:
3316                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_BRIGHTNESS, value),
3317                                 ITERATIONS_SHORT);
3318                 break;
3319         case SONY_PIC_COMMAND_SETCAMERACONTRAST:
3320                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTRAST, value),
3321                                 ITERATIONS_SHORT);
3322                 break;
3323         case SONY_PIC_COMMAND_SETCAMERAHUE:
3324                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_HUE, value),
3325                                 ITERATIONS_SHORT);
3326                 break;
3327         case SONY_PIC_COMMAND_SETCAMERACOLOR:
3328                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_COLOR, value),
3329                                 ITERATIONS_SHORT);
3330                 break;
3331         case SONY_PIC_COMMAND_SETCAMERASHARPNESS:
3332                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_SHARPNESS, value),
3333                                 ITERATIONS_SHORT);
3334                 break;
3335         case SONY_PIC_COMMAND_SETCAMERAPICTURE:
3336                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE, value),
3337                                 ITERATIONS_SHORT);
3338                 break;
3339         case SONY_PIC_COMMAND_SETCAMERAAGC:
3340                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_AGC, value),
3341                                 ITERATIONS_SHORT);
3342                 break;
3343         default:
3344                 pr_err("sony_pic_camera_command invalid: %d\n", command);
3345                 break;
3346         }
3347         mutex_unlock(&spic_dev.lock);
3348         return 0;
3349 }
3350 EXPORT_SYMBOL(sony_pic_camera_command);
3351
3352 /* gprs/edge modem (SZ460N and SZ210P), thanks to Joshua Wise */
3353 static void __sony_pic_set_wwanpower(u8 state)
3354 {
3355         state = !!state;
3356         if (spic_dev.wwan_power == state)
3357                 return;
3358         sony_pic_call2(0xB0, state);
3359         sony_pic_call1(0x82);
3360         spic_dev.wwan_power = state;
3361 }
3362
3363 static ssize_t sony_pic_wwanpower_store(struct device *dev,
3364                 struct device_attribute *attr,
3365                 const char *buffer, size_t count)
3366 {
3367         unsigned long value;
3368         if (count > 31)
3369                 return -EINVAL;
3370
3371         if (kstrtoul(buffer, 10, &value))
3372                 return -EINVAL;
3373
3374         mutex_lock(&spic_dev.lock);
3375         __sony_pic_set_wwanpower(value);
3376         mutex_unlock(&spic_dev.lock);
3377
3378         return count;
3379 }
3380
3381 static ssize_t sony_pic_wwanpower_show(struct device *dev,
3382                 struct device_attribute *attr, char *buffer)
3383 {
3384         ssize_t count;
3385         mutex_lock(&spic_dev.lock);
3386         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.wwan_power);
3387         mutex_unlock(&spic_dev.lock);
3388         return count;
3389 }
3390
3391 /* bluetooth subsystem power state */
3392 static void __sony_pic_set_bluetoothpower(u8 state)
3393 {
3394         state = !!state;
3395         if (spic_dev.bluetooth_power == state)
3396                 return;
3397         sony_pic_call2(0x96, state);
3398         sony_pic_call1(0x82);
3399         spic_dev.bluetooth_power = state;
3400 }
3401
3402 static ssize_t sony_pic_bluetoothpower_store(struct device *dev,
3403                 struct device_attribute *attr,
3404                 const char *buffer, size_t count)
3405 {
3406         unsigned long value;
3407         if (count > 31)
3408                 return -EINVAL;
3409
3410         if (kstrtoul(buffer, 10, &value))
3411                 return -EINVAL;
3412
3413         mutex_lock(&spic_dev.lock);
3414         __sony_pic_set_bluetoothpower(value);
3415         mutex_unlock(&spic_dev.lock);
3416
3417         return count;
3418 }
3419
3420 static ssize_t sony_pic_bluetoothpower_show(struct device *dev,
3421                 struct device_attribute *attr, char *buffer)
3422 {
3423         ssize_t count = 0;
3424         mutex_lock(&spic_dev.lock);
3425         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.bluetooth_power);
3426         mutex_unlock(&spic_dev.lock);
3427         return count;
3428 }
3429
3430 /* fan speed */
3431 /* FAN0 information (reverse engineered from ACPI tables) */
3432 #define SONY_PIC_FAN0_STATUS    0x93
3433 static int sony_pic_set_fanspeed(unsigned long value)
3434 {
3435         return ec_write(SONY_PIC_FAN0_STATUS, value);
3436 }
3437
3438 static int sony_pic_get_fanspeed(u8 *value)
3439 {
3440         return ec_read(SONY_PIC_FAN0_STATUS, value);
3441 }
3442
3443 static ssize_t sony_pic_fanspeed_store(struct device *dev,
3444                 struct device_attribute *attr,
3445                 const char *buffer, size_t count)
3446 {
3447         unsigned long value;
3448         if (count > 31)
3449                 return -EINVAL;
3450
3451         if (kstrtoul(buffer, 10, &value))
3452                 return -EINVAL;
3453
3454         if (sony_pic_set_fanspeed(value))
3455                 return -EIO;
3456
3457         return count;
3458 }
3459
3460 static ssize_t sony_pic_fanspeed_show(struct device *dev,
3461                 struct device_attribute *attr, char *buffer)
3462 {
3463         u8 value = 0;
3464         if (sony_pic_get_fanspeed(&value))
3465                 return -EIO;
3466
3467         return snprintf(buffer, PAGE_SIZE, "%d\n", value);
3468 }
3469
3470 #define SPIC_ATTR(_name, _mode)                                 \
3471 struct device_attribute spic_attr_##_name = __ATTR(_name,       \
3472                 _mode, sony_pic_## _name ##_show,               \
3473                 sony_pic_## _name ##_store)
3474
3475 static SPIC_ATTR(bluetoothpower, 0644);
3476 static SPIC_ATTR(wwanpower, 0644);
3477 static SPIC_ATTR(fanspeed, 0644);
3478
3479 static struct attribute *spic_attributes[] = {
3480         &spic_attr_bluetoothpower.attr,
3481         &spic_attr_wwanpower.attr,
3482         &spic_attr_fanspeed.attr,
3483         NULL
3484 };
3485
3486 static struct attribute_group spic_attribute_group = {
3487         .attrs = spic_attributes
3488 };
3489
3490 /******** SONYPI compatibility **********/
3491 #ifdef CONFIG_SONYPI_COMPAT
3492
3493 /* battery / brightness / temperature  addresses */
3494 #define SONYPI_BAT_FLAGS        0x81
3495 #define SONYPI_LCD_LIGHT        0x96
3496 #define SONYPI_BAT1_PCTRM       0xa0
3497 #define SONYPI_BAT1_LEFT        0xa2
3498 #define SONYPI_BAT1_MAXRT       0xa4
3499 #define SONYPI_BAT2_PCTRM       0xa8
3500 #define SONYPI_BAT2_LEFT        0xaa
3501 #define SONYPI_BAT2_MAXRT       0xac
3502 #define SONYPI_BAT1_MAXTK       0xb0
3503 #define SONYPI_BAT1_FULL        0xb2
3504 #define SONYPI_BAT2_MAXTK       0xb8
3505 #define SONYPI_BAT2_FULL        0xba
3506 #define SONYPI_TEMP_STATUS      0xC1
3507
3508 struct sonypi_compat_s {
3509         struct fasync_struct    *fifo_async;
3510         struct kfifo            fifo;
3511         spinlock_t              fifo_lock;
3512         wait_queue_head_t       fifo_proc_list;
3513         atomic_t                open_count;
3514 };
3515 static struct sonypi_compat_s sonypi_compat = {
3516         .open_count = ATOMIC_INIT(0),
3517 };
3518
3519 static int sonypi_misc_fasync(int fd, struct file *filp, int on)
3520 {
3521         return fasync_helper(fd, filp, on, &sonypi_compat.fifo_async);
3522 }
3523
3524 static int sonypi_misc_release(struct inode *inode, struct file *file)
3525 {
3526         atomic_dec(&sonypi_compat.open_count);
3527         return 0;
3528 }
3529
3530 static int sonypi_misc_open(struct inode *inode, struct file *file)
3531 {
3532         /* Flush input queue on first open */
3533         unsigned long flags;
3534
3535         spin_lock_irqsave(&sonypi_compat.fifo_lock, flags);
3536
3537         if (atomic_inc_return(&sonypi_compat.open_count) == 1)
3538                 kfifo_reset(&sonypi_compat.fifo);
3539
3540         spin_unlock_irqrestore(&sonypi_compat.fifo_lock, flags);
3541
3542         return 0;
3543 }
3544
3545 static ssize_t sonypi_misc_read(struct file *file, char __user *buf,
3546                                 size_t count, loff_t *pos)
3547 {
3548         ssize_t ret;
3549         unsigned char c;
3550
3551         if ((kfifo_len(&sonypi_compat.fifo) == 0) &&
3552             (file->f_flags & O_NONBLOCK))
3553                 return -EAGAIN;
3554
3555         ret = wait_event_interruptible(sonypi_compat.fifo_proc_list,
3556                                        kfifo_len(&sonypi_compat.fifo) != 0);
3557         if (ret)
3558                 return ret;
3559
3560         while (ret < count &&
3561                (kfifo_out_locked(&sonypi_compat.fifo, &c, sizeof(c),
3562                           &sonypi_compat.fifo_lock) == sizeof(c))) {
3563                 if (put_user(c, buf++))
3564                         return -EFAULT;
3565                 ret++;
3566         }
3567
3568         if (ret > 0) {
3569                 struct inode *inode = file_inode(file);
3570                 inode->i_atime = current_fs_time(inode->i_sb);
3571         }
3572
3573         return ret;
3574 }
3575
3576 static unsigned int sonypi_misc_poll(struct file *file, poll_table *wait)
3577 {
3578         poll_wait(file, &sonypi_compat.fifo_proc_list, wait);
3579         if (kfifo_len(&sonypi_compat.fifo))
3580                 return POLLIN | POLLRDNORM;
3581         return 0;
3582 }
3583
3584 static int ec_read16(u8 addr, u16 *value)
3585 {
3586         u8 val_lb, val_hb;
3587         if (ec_read(addr, &val_lb))
3588                 return -1;
3589         if (ec_read(addr + 1, &val_hb))
3590                 return -1;
3591         *value = val_lb | (val_hb << 8);
3592         return 0;
3593 }
3594
3595 static long sonypi_misc_ioctl(struct file *fp, unsigned int cmd,
3596                                                         unsigned long arg)
3597 {
3598         int ret = 0;
3599         void __user *argp = (void __user *)arg;
3600         u8 val8;
3601         u16 val16;
3602         int value;
3603
3604         mutex_lock(&spic_dev.lock);
3605         switch (cmd) {
3606         case SONYPI_IOCGBRT:
3607                 if (sony_bl_props.dev == NULL) {
3608                         ret = -EIO;
3609                         break;
3610                 }
3611                 if (sony_nc_int_call(sony_nc_acpi_handle, "GBRT", NULL,
3612                                         &value)) {
3613                         ret = -EIO;
3614                         break;
3615                 }
3616                 val8 = ((value & 0xff) - 1) << 5;
3617                 if (copy_to_user(argp, &val8, sizeof(val8)))
3618                                 ret = -EFAULT;
3619                 break;
3620         case SONYPI_IOCSBRT:
3621                 if (sony_bl_props.dev == NULL) {
3622                         ret = -EIO;
3623                         break;
3624                 }
3625                 if (copy_from_user(&val8, argp, sizeof(val8))) {
3626                         ret = -EFAULT;
3627                         break;
3628                 }
3629                 value = (val8 >> 5) + 1;
3630                 if (sony_nc_int_call(sony_nc_acpi_handle, "SBRT", &value,
3631                                         NULL)) {
3632                         ret = -EIO;
3633                         break;
3634                 }
3635                 /* sync the backlight device status */
3636                 sony_bl_props.dev->props.brightness =
3637                     sony_backlight_get_brightness(sony_bl_props.dev);
3638                 break;
3639         case SONYPI_IOCGBAT1CAP:
3640                 if (ec_read16(SONYPI_BAT1_FULL, &val16)) {
3641                         ret = -EIO;
3642                         break;
3643                 }
3644                 if (copy_to_user(argp, &val16, sizeof(val16)))
3645                         ret = -EFAULT;
3646                 break;
3647         case SONYPI_IOCGBAT1REM:
3648                 if (ec_read16(SONYPI_BAT1_LEFT, &val16)) {
3649                         ret = -EIO;
3650                         break;
3651                 }
3652                 if (copy_to_user(argp, &val16, sizeof(val16)))
3653                         ret = -EFAULT;
3654                 break;
3655         case SONYPI_IOCGBAT2CAP:
3656                 if (ec_read16(SONYPI_BAT2_FULL, &val16)) {
3657                         ret = -EIO;
3658                         break;
3659                 }
3660                 if (copy_to_user(argp, &val16, sizeof(val16)))
3661                         ret = -EFAULT;
3662                 break;
3663         case SONYPI_IOCGBAT2REM:
3664                 if (ec_read16(SONYPI_BAT2_LEFT, &val16)) {
3665                         ret = -EIO;
3666                         break;
3667                 }
3668                 if (copy_to_user(argp, &val16, sizeof(val16)))
3669                         ret = -EFAULT;
3670                 break;
3671         case SONYPI_IOCGBATFLAGS:
3672                 if (ec_read(SONYPI_BAT_FLAGS, &val8)) {
3673                         ret = -EIO;
3674                         break;
3675                 }
3676                 val8 &= 0x07;
3677                 if (copy_to_user(argp, &val8, sizeof(val8)))
3678                         ret = -EFAULT;
3679                 break;
3680         case SONYPI_IOCGBLUE:
3681                 val8 = spic_dev.bluetooth_power;
3682                 if (copy_to_user(argp, &val8, sizeof(val8)))
3683                         ret = -EFAULT;
3684                 break;
3685         case SONYPI_IOCSBLUE:
3686                 if (copy_from_user(&val8, argp, sizeof(val8))) {
3687                         ret = -EFAULT;
3688                         break;
3689                 }
3690                 __sony_pic_set_bluetoothpower(val8);
3691                 break;
3692         /* FAN Controls */
3693         case SONYPI_IOCGFAN:
3694                 if (sony_pic_get_fanspeed(&val8)) {
3695                         ret = -EIO;
3696                         break;
3697                 }
3698                 if (copy_to_user(argp, &val8, sizeof(val8)))
3699                         ret = -EFAULT;
3700                 break;
3701         case SONYPI_IOCSFAN:
3702                 if (copy_from_user(&val8, argp, sizeof(val8))) {
3703                         ret = -EFAULT;
3704                         break;
3705                 }
3706                 if (sony_pic_set_fanspeed(val8))
3707                         ret = -EIO;
3708                 break;
3709         /* GET Temperature (useful under APM) */
3710         case SONYPI_IOCGTEMP:
3711                 if (ec_read(SONYPI_TEMP_STATUS, &val8)) {
3712                         ret = -EIO;
3713                         break;
3714                 }
3715                 if (copy_to_user(argp, &val8, sizeof(val8)))
3716                         ret = -EFAULT;
3717                 break;
3718         default:
3719                 ret = -EINVAL;
3720         }
3721         mutex_unlock(&spic_dev.lock);
3722         return ret;
3723 }
3724
3725 static const struct file_operations sonypi_misc_fops = {
3726         .owner          = THIS_MODULE,
3727         .read           = sonypi_misc_read,
3728         .poll           = sonypi_misc_poll,
3729         .open           = sonypi_misc_open,
3730         .release        = sonypi_misc_release,
3731         .fasync         = sonypi_misc_fasync,
3732         .unlocked_ioctl = sonypi_misc_ioctl,
3733         .llseek         = noop_llseek,
3734 };
3735
3736 static struct miscdevice sonypi_misc_device = {
3737         .minor          = MISC_DYNAMIC_MINOR,
3738         .name           = "sonypi",
3739         .fops           = &sonypi_misc_fops,
3740 };
3741
3742 static void sonypi_compat_report_event(u8 event)
3743 {
3744         kfifo_in_locked(&sonypi_compat.fifo, (unsigned char *)&event,
3745                         sizeof(event), &sonypi_compat.fifo_lock);
3746         kill_fasync(&sonypi_compat.fifo_async, SIGIO, POLL_IN);
3747         wake_up_interruptible(&sonypi_compat.fifo_proc_list);
3748 }
3749
3750 static int sonypi_compat_init(void)
3751 {
3752         int error;
3753
3754         spin_lock_init(&sonypi_compat.fifo_lock);
3755         error =
3756          kfifo_alloc(&sonypi_compat.fifo, SONY_LAPTOP_BUF_SIZE, GFP_KERNEL);
3757         if (error) {
3758                 pr_err("kfifo_alloc failed\n");
3759                 return error;
3760         }
3761
3762         init_waitqueue_head(&sonypi_compat.fifo_proc_list);
3763
3764         if (minor != -1)
3765                 sonypi_misc_device.minor = minor;
3766         error = misc_register(&sonypi_misc_device);
3767         if (error) {
3768                 pr_err("misc_register failed\n");
3769                 goto err_free_kfifo;
3770         }
3771         if (minor == -1)
3772                 pr_info("device allocated minor is %d\n",
3773                         sonypi_misc_device.minor);
3774
3775         return 0;
3776
3777 err_free_kfifo:
3778         kfifo_free(&sonypi_compat.fifo);
3779         return error;
3780 }
3781
3782 static void sonypi_compat_exit(void)
3783 {
3784         misc_deregister(&sonypi_misc_device);
3785         kfifo_free(&sonypi_compat.fifo);
3786 }
3787 #else
3788 static int sonypi_compat_init(void) { return 0; }
3789 static void sonypi_compat_exit(void) { }
3790 static void sonypi_compat_report_event(u8 event) { }
3791 #endif /* CONFIG_SONYPI_COMPAT */
3792
3793 /*
3794  * ACPI callbacks
3795  */
3796 static acpi_status
3797 sony_pic_read_possible_resource(struct acpi_resource *resource, void *context)
3798 {
3799         u32 i;
3800         struct sony_pic_dev *dev = (struct sony_pic_dev *)context;
3801
3802         switch (resource->type) {
3803         case ACPI_RESOURCE_TYPE_START_DEPENDENT:
3804                 {
3805                         /* start IO enumeration */
3806                         struct sony_pic_ioport *ioport = kzalloc(sizeof(*ioport), GFP_KERNEL);
3807                         if (!ioport)
3808                                 return AE_ERROR;
3809
3810                         list_add(&ioport->list, &dev->ioports);
3811                         return AE_OK;
3812                 }
3813
3814         case ACPI_RESOURCE_TYPE_END_DEPENDENT:
3815                 /* end IO enumeration */
3816                 return AE_OK;
3817
3818         case ACPI_RESOURCE_TYPE_IRQ:
3819                 {
3820                         struct acpi_resource_irq *p = &resource->data.irq;
3821                         struct sony_pic_irq *interrupt = NULL;
3822                         if (!p || !p->interrupt_count) {
3823                                 /*
3824                                  * IRQ descriptors may have no IRQ# bits set,
3825                                  * particularly those those w/ _STA disabled
3826                                  */
3827                                 dprintk("Blank IRQ resource\n");
3828                                 return AE_OK;
3829                         }
3830                         for (i = 0; i < p->interrupt_count; i++) {
3831                                 if (!p->interrupts[i]) {
3832                                         pr_warn("Invalid IRQ %d\n",
3833                                                 p->interrupts[i]);
3834                                         continue;
3835                                 }
3836                                 interrupt = kzalloc(sizeof(*interrupt),
3837                                                 GFP_KERNEL);
3838                                 if (!interrupt)
3839                                         return AE_ERROR;
3840
3841                                 list_add(&interrupt->list, &dev->interrupts);
3842                                 interrupt->irq.triggering = p->triggering;
3843                                 interrupt->irq.polarity = p->polarity;
3844                                 interrupt->irq.sharable = p->sharable;
3845                                 interrupt->irq.interrupt_count = 1;
3846                                 interrupt->irq.interrupts[0] = p->interrupts[i];
3847                         }
3848                         return AE_OK;
3849                 }
3850         case ACPI_RESOURCE_TYPE_IO:
3851                 {
3852                         struct acpi_resource_io *io = &resource->data.io;
3853                         struct sony_pic_ioport *ioport =
3854                                 list_first_entry(&dev->ioports, struct sony_pic_ioport, list);
3855                         if (!io) {
3856                                 dprintk("Blank IO resource\n");
3857                                 return AE_OK;
3858                         }
3859
3860                         if (!ioport->io1.minimum) {
3861                                 memcpy(&ioport->io1, io, sizeof(*io));
3862                                 dprintk("IO1 at 0x%.4x (0x%.2x)\n", ioport->io1.minimum,
3863                                                 ioport->io1.address_length);
3864                         }
3865                         else if (!ioport->io2.minimum) {
3866                                 memcpy(&ioport->io2, io, sizeof(*io));
3867                                 dprintk("IO2 at 0x%.4x (0x%.2x)\n", ioport->io2.minimum,
3868                                                 ioport->io2.address_length);
3869                         }
3870                         else {
3871                                 pr_err("Unknown SPIC Type, more than 2 IO Ports\n");
3872                                 return AE_ERROR;
3873                         }
3874                         return AE_OK;
3875                 }
3876         default:
3877                 dprintk("Resource %d isn't an IRQ nor an IO port\n",
3878                         resource->type);
3879
3880         case ACPI_RESOURCE_TYPE_END_TAG:
3881                 return AE_OK;
3882         }
3883         return AE_CTRL_TERMINATE;
3884 }
3885
3886 static int sony_pic_possible_resources(struct acpi_device *device)
3887 {
3888         int result = 0;
3889         acpi_status status = AE_OK;
3890
3891         if (!device)
3892                 return -EINVAL;
3893
3894         /* get device status */
3895         /* see acpi_pci_link_get_current acpi_pci_link_get_possible */
3896         dprintk("Evaluating _STA\n");
3897         result = acpi_bus_get_status(device);
3898         if (result) {
3899                 pr_warn("Unable to read status\n");
3900                 goto end;
3901         }
3902
3903         if (!device->status.enabled)
3904                 dprintk("Device disabled\n");
3905         else
3906                 dprintk("Device enabled\n");
3907
3908         /*
3909          * Query and parse 'method'
3910          */
3911         dprintk("Evaluating %s\n", METHOD_NAME__PRS);
3912         status = acpi_walk_resources(device->handle, METHOD_NAME__PRS,
3913                         sony_pic_read_possible_resource, &spic_dev);
3914         if (ACPI_FAILURE(status)) {
3915                 pr_warn("Failure evaluating %s\n", METHOD_NAME__PRS);
3916                 result = -ENODEV;
3917         }
3918 end:
3919         return result;
3920 }
3921
3922 /*
3923  *  Disable the spic device by calling its _DIS method
3924  */
3925 static int sony_pic_disable(struct acpi_device *device)
3926 {
3927         acpi_status ret = acpi_evaluate_object(device->handle, "_DIS", NULL,
3928                                                NULL);
3929
3930         if (ACPI_FAILURE(ret) && ret != AE_NOT_FOUND)
3931                 return -ENXIO;
3932
3933         dprintk("Device disabled\n");
3934         return 0;
3935 }
3936
3937
3938 /*
3939  *  Based on drivers/acpi/pci_link.c:acpi_pci_link_set
3940  *
3941  *  Call _SRS to set current resources
3942  */
3943 static int sony_pic_enable(struct acpi_device *device,
3944                 struct sony_pic_ioport *ioport, struct sony_pic_irq *irq)
3945 {
3946         acpi_status status;
3947         int result = 0;
3948         /* Type 1 resource layout is:
3949          *    IO
3950          *    IO
3951          *    IRQNoFlags
3952          *    End
3953          *
3954          * Type 2 and 3 resource layout is:
3955          *    IO
3956          *    IRQNoFlags
3957          *    End
3958          */
3959         struct {
3960                 struct acpi_resource res1;
3961                 struct acpi_resource res2;
3962                 struct acpi_resource res3;
3963                 struct acpi_resource res4;
3964         } *resource;
3965         struct acpi_buffer buffer = { 0, NULL };
3966
3967         if (!ioport || !irq)
3968                 return -EINVAL;
3969
3970         /* init acpi_buffer */
3971         resource = kzalloc(sizeof(*resource) + 1, GFP_KERNEL);
3972         if (!resource)
3973                 return -ENOMEM;
3974
3975         buffer.length = sizeof(*resource) + 1;
3976         buffer.pointer = resource;
3977
3978         /* setup Type 1 resources */
3979         if (spic_dev.model == SONYPI_DEVICE_TYPE1) {
3980
3981                 /* setup io resources */
3982                 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
3983                 resource->res1.length = sizeof(struct acpi_resource);
3984                 memcpy(&resource->res1.data.io, &ioport->io1,
3985                                 sizeof(struct acpi_resource_io));
3986
3987                 resource->res2.type = ACPI_RESOURCE_TYPE_IO;
3988                 resource->res2.length = sizeof(struct acpi_resource);
3989                 memcpy(&resource->res2.data.io, &ioport->io2,
3990                                 sizeof(struct acpi_resource_io));
3991
3992                 /* setup irq resource */
3993                 resource->res3.type = ACPI_RESOURCE_TYPE_IRQ;
3994                 resource->res3.length = sizeof(struct acpi_resource);
3995                 memcpy(&resource->res3.data.irq, &irq->irq,
3996                                 sizeof(struct acpi_resource_irq));
3997                 /* we requested a shared irq */
3998                 resource->res3.data.irq.sharable = ACPI_SHARED;
3999
4000                 resource->res4.type = ACPI_RESOURCE_TYPE_END_TAG;
4001
4002         }
4003         /* setup Type 2/3 resources */
4004         else {
4005                 /* setup io resource */
4006                 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
4007                 resource->res1.length = sizeof(struct acpi_resource);
4008                 memcpy(&resource->res1.data.io, &ioport->io1,
4009                                 sizeof(struct acpi_resource_io));
4010
4011                 /* setup irq resource */
4012                 resource->res2.type = ACPI_RESOURCE_TYPE_IRQ;
4013                 resource->res2.length = sizeof(struct acpi_resource);
4014                 memcpy(&resource->res2.data.irq, &irq->irq,
4015                                 sizeof(struct acpi_resource_irq));
4016                 /* we requested a shared irq */
4017                 resource->res2.data.irq.sharable = ACPI_SHARED;
4018
4019                 resource->res3.type = ACPI_RESOURCE_TYPE_END_TAG;
4020         }
4021
4022         /* Attempt to set the resource */
4023         dprintk("Evaluating _SRS\n");
4024         status = acpi_set_current_resources(device->handle, &buffer);
4025
4026         /* check for total failure */
4027         if (ACPI_FAILURE(status)) {
4028                 pr_err("Error evaluating _SRS\n");
4029                 result = -ENODEV;
4030                 goto end;
4031         }
4032
4033         /* Necessary device initializations calls (from sonypi) */
4034         sony_pic_call1(0x82);
4035         sony_pic_call2(0x81, 0xff);
4036         sony_pic_call1(compat ? 0x92 : 0x82);
4037
4038 end:
4039         kfree(resource);
4040         return result;
4041 }
4042
4043 /*****************
4044  *
4045  * ISR: some event is available
4046  *
4047  *****************/
4048 static irqreturn_t sony_pic_irq(int irq, void *dev_id)
4049 {
4050         int i, j;
4051         u8 ev = 0;
4052         u8 data_mask = 0;
4053         u8 device_event = 0;
4054
4055         struct sony_pic_dev *dev = (struct sony_pic_dev *) dev_id;
4056
4057         ev = inb_p(dev->cur_ioport->io1.minimum);
4058         if (dev->cur_ioport->io2.minimum)
4059                 data_mask = inb_p(dev->cur_ioport->io2.minimum);
4060         else
4061                 data_mask = inb_p(dev->cur_ioport->io1.minimum +
4062                                 dev->evport_offset);
4063
4064         dprintk("event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
4065                         ev, data_mask, dev->cur_ioport->io1.minimum,
4066                         dev->evport_offset);
4067
4068         if (ev == 0x00 || ev == 0xff)
4069                 return IRQ_HANDLED;
4070
4071         for (i = 0; dev->event_types[i].mask; i++) {
4072
4073                 if ((data_mask & dev->event_types[i].data) !=
4074                     dev->event_types[i].data)
4075                         continue;
4076
4077                 if (!(mask & dev->event_types[i].mask))
4078                         continue;
4079
4080                 for (j = 0; dev->event_types[i].events[j].event; j++) {
4081                         if (ev == dev->event_types[i].events[j].data) {
4082                                 device_event =
4083                                         dev->event_types[i].events[j].event;
4084                                 /* some events may require ignoring */
4085                                 if (!device_event)
4086                                         return IRQ_HANDLED;
4087                                 goto found;
4088                         }
4089                 }
4090         }
4091         /* Still not able to decode the event try to pass
4092          * it over to the minidriver
4093          */
4094         if (dev->handle_irq && dev->handle_irq(data_mask, ev) == 0)
4095                 return IRQ_HANDLED;
4096
4097         dprintk("unknown event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
4098                         ev, data_mask, dev->cur_ioport->io1.minimum,
4099                         dev->evport_offset);
4100         return IRQ_HANDLED;
4101
4102 found:
4103         sony_laptop_report_input_event(device_event);
4104         acpi_bus_generate_proc_event(dev->acpi_dev, 1, device_event);
4105         sonypi_compat_report_event(device_event);
4106         return IRQ_HANDLED;
4107 }
4108
4109 /*****************
4110  *
4111  *  ACPI driver
4112  *
4113  *****************/
4114 static int sony_pic_remove(struct acpi_device *device)
4115 {
4116         struct sony_pic_ioport *io, *tmp_io;
4117         struct sony_pic_irq *irq, *tmp_irq;
4118
4119         if (sony_pic_disable(device)) {
4120                 pr_err("Couldn't disable device\n");
4121                 return -ENXIO;
4122         }
4123
4124         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
4125         release_region(spic_dev.cur_ioport->io1.minimum,
4126                         spic_dev.cur_ioport->io1.address_length);
4127         if (spic_dev.cur_ioport->io2.minimum)
4128                 release_region(spic_dev.cur_ioport->io2.minimum,
4129                                 spic_dev.cur_ioport->io2.address_length);
4130
4131         sonypi_compat_exit();
4132
4133         sony_laptop_remove_input();
4134
4135         /* pf attrs */
4136         sysfs_remove_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
4137         sony_pf_remove();
4138
4139         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
4140                 list_del(&io->list);
4141                 kfree(io);
4142         }
4143         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
4144                 list_del(&irq->list);
4145                 kfree(irq);
4146         }
4147         spic_dev.cur_ioport = NULL;
4148         spic_dev.cur_irq = NULL;
4149
4150         dprintk(SONY_PIC_DRIVER_NAME " removed.\n");
4151         return 0;
4152 }
4153
4154 static int sony_pic_add(struct acpi_device *device)
4155 {
4156         int result;
4157         struct sony_pic_ioport *io, *tmp_io;
4158         struct sony_pic_irq *irq, *tmp_irq;
4159
4160         pr_info("%s v%s\n", SONY_PIC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
4161
4162         spic_dev.acpi_dev = device;
4163         strcpy(acpi_device_class(device), "sony/hotkey");
4164         sony_pic_detect_device_type(&spic_dev);
4165         mutex_init(&spic_dev.lock);
4166
4167         /* read _PRS resources */
4168         result = sony_pic_possible_resources(device);
4169         if (result) {
4170                 pr_err("Unable to read possible resources\n");
4171                 goto err_free_resources;
4172         }
4173
4174         /* setup input devices and helper fifo */
4175         result = sony_laptop_setup_input(device);
4176         if (result) {
4177                 pr_err("Unable to create input devices\n");
4178                 goto err_free_resources;
4179         }
4180
4181         if (sonypi_compat_init())
4182                 goto err_remove_input;
4183
4184         /* request io port */
4185         list_for_each_entry_reverse(io, &spic_dev.ioports, list) {
4186                 if (request_region(io->io1.minimum, io->io1.address_length,
4187                                         "Sony Programmable I/O Device")) {
4188                         dprintk("I/O port1: 0x%.4x (0x%.4x) + 0x%.2x\n",
4189                                         io->io1.minimum, io->io1.maximum,
4190                                         io->io1.address_length);
4191                         /* Type 1 have 2 ioports */
4192                         if (io->io2.minimum) {
4193                                 if (request_region(io->io2.minimum,
4194                                                 io->io2.address_length,
4195                                                 "Sony Programmable I/O Device")) {
4196                                         dprintk("I/O port2: 0x%.4x (0x%.4x) + 0x%.2x\n",
4197                                                         io->io2.minimum, io->io2.maximum,
4198                                                         io->io2.address_length);
4199                                         spic_dev.cur_ioport = io;
4200                                         break;
4201                                 }
4202                                 else {
4203                                         dprintk("Unable to get I/O port2: "
4204                                                         "0x%.4x (0x%.4x) + 0x%.2x\n",
4205                                                         io->io2.minimum, io->io2.maximum,
4206                                                         io->io2.address_length);
4207                                         release_region(io->io1.minimum,
4208                                                         io->io1.address_length);
4209                                 }
4210                         }
4211                         else {
4212                                 spic_dev.cur_ioport = io;
4213                                 break;
4214                         }
4215                 }
4216         }
4217         if (!spic_dev.cur_ioport) {
4218                 pr_err("Failed to request_region\n");
4219                 result = -ENODEV;
4220                 goto err_remove_compat;
4221         }
4222
4223         /* request IRQ */
4224         list_for_each_entry_reverse(irq, &spic_dev.interrupts, list) {
4225                 if (!request_irq(irq->irq.interrupts[0], sony_pic_irq,
4226                                         0, "sony-laptop", &spic_dev)) {
4227                         dprintk("IRQ: %d - triggering: %d - "
4228                                         "polarity: %d - shr: %d\n",
4229                                         irq->irq.interrupts[0],
4230                                         irq->irq.triggering,
4231                                         irq->irq.polarity,
4232                                         irq->irq.sharable);
4233                         spic_dev.cur_irq = irq;
4234                         break;
4235                 }
4236         }
4237         if (!spic_dev.cur_irq) {
4238                 pr_err("Failed to request_irq\n");
4239                 result = -ENODEV;
4240                 goto err_release_region;
4241         }
4242
4243         /* set resource status _SRS */
4244         result = sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
4245         if (result) {
4246                 pr_err("Couldn't enable device\n");
4247                 goto err_free_irq;
4248         }
4249
4250         spic_dev.bluetooth_power = -1;
4251         /* create device attributes */
4252         result = sony_pf_add();
4253         if (result)
4254                 goto err_disable_device;
4255
4256         result = sysfs_create_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
4257         if (result)
4258                 goto err_remove_pf;
4259
4260         return 0;
4261
4262 err_remove_pf:
4263         sony_pf_remove();
4264
4265 err_disable_device:
4266         sony_pic_disable(device);
4267
4268 err_free_irq:
4269         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
4270
4271 err_release_region:
4272         release_region(spic_dev.cur_ioport->io1.minimum,
4273                         spic_dev.cur_ioport->io1.address_length);
4274         if (spic_dev.cur_ioport->io2.minimum)
4275                 release_region(spic_dev.cur_ioport->io2.minimum,
4276                                 spic_dev.cur_ioport->io2.address_length);
4277
4278 err_remove_compat:
4279         sonypi_compat_exit();
4280
4281 err_remove_input:
4282         sony_laptop_remove_input();
4283
4284 err_free_resources:
4285         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
4286                 list_del(&io->list);
4287                 kfree(io);
4288         }
4289         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
4290                 list_del(&irq->list);
4291                 kfree(irq);
4292         }
4293         spic_dev.cur_ioport = NULL;
4294         spic_dev.cur_irq = NULL;
4295
4296         return result;
4297 }
4298
4299 #ifdef CONFIG_PM_SLEEP
4300 static int sony_pic_suspend(struct device *dev)
4301 {
4302         if (sony_pic_disable(to_acpi_device(dev)))
4303                 return -ENXIO;
4304         return 0;
4305 }
4306
4307 static int sony_pic_resume(struct device *dev)
4308 {
4309         sony_pic_enable(to_acpi_device(dev),
4310                         spic_dev.cur_ioport, spic_dev.cur_irq);
4311         return 0;
4312 }
4313 #endif
4314
4315 static SIMPLE_DEV_PM_OPS(sony_pic_pm, sony_pic_suspend, sony_pic_resume);
4316
4317 static const struct acpi_device_id sony_pic_device_ids[] = {
4318         {SONY_PIC_HID, 0},
4319         {"", 0},
4320 };
4321
4322 static struct acpi_driver sony_pic_driver = {
4323         .name = SONY_PIC_DRIVER_NAME,
4324         .class = SONY_PIC_CLASS,
4325         .ids = sony_pic_device_ids,
4326         .owner = THIS_MODULE,
4327         .ops = {
4328                 .add = sony_pic_add,
4329                 .remove = sony_pic_remove,
4330                 },
4331         .drv.pm = &sony_pic_pm,
4332 };
4333
4334 static struct dmi_system_id __initdata sonypi_dmi_table[] = {
4335         {
4336                 .ident = "Sony Vaio",
4337                 .matches = {
4338                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
4339                         DMI_MATCH(DMI_PRODUCT_NAME, "PCG-"),
4340                 },
4341         },
4342         {
4343                 .ident = "Sony Vaio",
4344                 .matches = {
4345                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
4346                         DMI_MATCH(DMI_PRODUCT_NAME, "VGN-"),
4347                 },
4348         },
4349         { }
4350 };
4351
4352 static int __init sony_laptop_init(void)
4353 {
4354         int result;
4355
4356         if (!no_spic && dmi_check_system(sonypi_dmi_table)) {
4357                 result = acpi_bus_register_driver(&sony_pic_driver);
4358                 if (result) {
4359                         pr_err("Unable to register SPIC driver\n");
4360                         goto out;
4361                 }
4362                 spic_drv_registered = 1;
4363         }
4364
4365         result = acpi_bus_register_driver(&sony_nc_driver);
4366         if (result) {
4367                 pr_err("Unable to register SNC driver\n");
4368                 goto out_unregister_pic;
4369         }
4370
4371         return 0;
4372
4373 out_unregister_pic:
4374         if (spic_drv_registered)
4375                 acpi_bus_unregister_driver(&sony_pic_driver);
4376 out:
4377         return result;
4378 }
4379
4380 static void __exit sony_laptop_exit(void)
4381 {
4382         acpi_bus_unregister_driver(&sony_nc_driver);
4383         if (spic_drv_registered)
4384                 acpi_bus_unregister_driver(&sony_pic_driver);
4385 }
4386
4387 module_init(sony_laptop_init);
4388 module_exit(sony_laptop_exit);