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 <linux/sonypi.h>
  65 #include <linux/sony-laptop.h>
  66 #include <linux/rfkill.h>
  67 #ifdef CONFIG_SONYPI_COMPAT
  68 #include <linux/poll.h>
  69 #include <linux/miscdevice.h>
  70 #endif
  71 #include <linux/uaccess.h>
  72 #include <acpi/video.h>
  73
  74 #define dprintk(fmt, ...)                       \
  75 do {                                            \
  76         if (debug)                              \
  77                 pr_warn(fmt, ##__VA_ARGS__);    \
  78 } while (0)
  79
  80 #define SONY_NC_CLASS           "sony-nc"
  81 #define SONY_NC_HID             "SNY5001"
  82 #define SONY_NC_DRIVER_NAME     "Sony Notebook Control Driver"
  83
  84 #define SONY_PIC_CLASS          "sony-pic"
  85 #define SONY_PIC_HID            "SNY6001"
  86 #define SONY_PIC_DRIVER_NAME    "Sony Programmable IO Control Driver"
  87
  88 MODULE_AUTHOR("Stelian Pop, Mattia Dongili");
  89 MODULE_DESCRIPTION("Sony laptop extras driver (SPIC and SNC ACPI device)");
  90 MODULE_LICENSE("GPL");
  91
  92 static int debug;
  93 module_param(debug, int, 0);
  94 MODULE_PARM_DESC(debug, "set this to 1 (and RTFM) if you want to help "
  95                  "the development of this driver");
  96
  97 static int no_spic;             /* = 0 */
  98 module_param(no_spic, int, 0444);
  99 MODULE_PARM_DESC(no_spic,
 100                  "set this if you don't want to enable the SPIC device");
 101
 102 static int compat;              /* = 0 */
 103 module_param(compat, int, 0444);
 104 MODULE_PARM_DESC(compat,
 105                  "set this if you want to enable backward compatibility mode");
 106
 107 static unsigned long mask = 0xffffffff;
 108 module_param(mask, ulong, 0644);
 109 MODULE_PARM_DESC(mask,
 110                  "set this to the mask of event you want to enable (see doc)");
 111
 112 static int camera;              /* = 0 */
 113 module_param(camera, int, 0444);
 114 MODULE_PARM_DESC(camera,
 115                  "set this to 1 to enable Motion Eye camera controls "
 116                  "(only use it if you have a C1VE or C1VN model)");
 117
 118 #ifdef CONFIG_SONYPI_COMPAT
 119 static int minor = -1;
 120 module_param(minor, int, 0);
 121 MODULE_PARM_DESC(minor,
 122                  "minor number of the misc device for the SPIC compatibility code, "
 123                  "default is -1 (automatic)");
 124 #endif
 125
 126 static int kbd_backlight = -1;
 127 module_param(kbd_backlight, int, 0444);
 128 MODULE_PARM_DESC(kbd_backlight,
 129                  "set this to 0 to disable keyboard backlight, "
 130                  "1 to enable it with automatic control and 2 to have it always "
 131                  "on (default: no change from current value)");
 132
 133 static int kbd_backlight_timeout = -1;
 134 module_param(kbd_backlight_timeout, int, 0444);
 135 MODULE_PARM_DESC(kbd_backlight_timeout,
 136                  "meaningful values vary from 0 to 3 and their meaning depends "
 137                  "on the model (default: no change from current value)");
 138
 139 #ifdef CONFIG_PM_SLEEP
 140 static void sony_nc_thermal_resume(void);
 141 #endif
 142 static int sony_nc_kbd_backlight_setup(struct platform_device *pd,
 143                 unsigned int handle);
 144 static void sony_nc_kbd_backlight_cleanup(struct platform_device *pd,
 145                 unsigned int handle);
 146
 147 static int sony_nc_battery_care_setup(struct platform_device *pd,
 148                 unsigned int handle);
 149 static void sony_nc_battery_care_cleanup(struct platform_device *pd);
 150
 151 static int sony_nc_thermal_setup(struct platform_device *pd);
 152 static void sony_nc_thermal_cleanup(struct platform_device *pd);
 153
 154 static int sony_nc_lid_resume_setup(struct platform_device *pd,
 155                                     unsigned int handle);
 156 static void sony_nc_lid_resume_cleanup(struct platform_device *pd);
 157
 158 static int sony_nc_gfx_switch_setup(struct platform_device *pd,
 159                 unsigned int handle);
 160 static void sony_nc_gfx_switch_cleanup(struct platform_device *pd);
 161 static int __sony_nc_gfx_switch_status_get(void);
 162
 163 static int sony_nc_highspeed_charging_setup(struct platform_device *pd);
 164 static void sony_nc_highspeed_charging_cleanup(struct platform_device *pd);
 165
 166 static int sony_nc_lowbatt_setup(struct platform_device *pd);
 167 static void sony_nc_lowbatt_cleanup(struct platform_device *pd);
 168
 169 static int sony_nc_fanspeed_setup(struct platform_device *pd);
 170 static void sony_nc_fanspeed_cleanup(struct platform_device *pd);
 171
 172 static int sony_nc_usb_charge_setup(struct platform_device *pd);
 173 static void sony_nc_usb_charge_cleanup(struct platform_device *pd);
 174
 175 static int sony_nc_panelid_setup(struct platform_device *pd);
 176 static void sony_nc_panelid_cleanup(struct platform_device *pd);
 177
 178 static int sony_nc_smart_conn_setup(struct platform_device *pd);
 179 static void sony_nc_smart_conn_cleanup(struct platform_device *pd);
 180
 181 static int sony_nc_touchpad_setup(struct platform_device *pd,
 182                                   unsigned int handle);
 183 static void sony_nc_touchpad_cleanup(struct platform_device *pd);
 184
 185 enum sony_nc_rfkill {
 186         SONY_WIFI,
 187         SONY_BLUETOOTH,
 188         SONY_WWAN,
 189         SONY_WIMAX,
 190         N_SONY_RFKILL,
 191 };
 192
 193 static int sony_rfkill_handle;
 194 static struct rfkill *sony_rfkill_devices[N_SONY_RFKILL];
 195 static int sony_rfkill_address[N_SONY_RFKILL] = {0x300, 0x500, 0x700, 0x900};
 196 static int sony_nc_rfkill_setup(struct acpi_device *device,
 197                 unsigned int handle);
 198 static void sony_nc_rfkill_cleanup(void);
 199 static void sony_nc_rfkill_update(void);
 200
 201 /*********** Input Devices ***********/
 202
 203 #define SONY_LAPTOP_BUF_SIZE    128
 204 struct sony_laptop_input_s {
 205         atomic_t                users;
 206         struct input_dev        *jog_dev;
 207         struct input_dev        *key_dev;
 208         struct kfifo            fifo;
 209         spinlock_t              fifo_lock;
 210         struct timer_list       release_key_timer;
 211 };
 212
 213 static struct sony_laptop_input_s sony_laptop_input = {
 214         .users = ATOMIC_INIT(0),
 215 };
 216
 217 struct sony_laptop_keypress {
 218         struct input_dev *dev;
 219         int key;
 220 };
 221
 222 /* Correspondance table between sonypi events
 223  * and input layer indexes in the keymap
 224  */
 225 static const int sony_laptop_input_index[] = {
 226         -1,     /*  0 no event */
 227         -1,     /*  1 SONYPI_EVENT_JOGDIAL_DOWN */
 228         -1,     /*  2 SONYPI_EVENT_JOGDIAL_UP */
 229         -1,     /*  3 SONYPI_EVENT_JOGDIAL_DOWN_PRESSED */
 230         -1,     /*  4 SONYPI_EVENT_JOGDIAL_UP_PRESSED */
 231         -1,     /*  5 SONYPI_EVENT_JOGDIAL_PRESSED */
 232         -1,     /*  6 SONYPI_EVENT_JOGDIAL_RELEASED */
 233          0,     /*  7 SONYPI_EVENT_CAPTURE_PRESSED */
 234          1,     /*  8 SONYPI_EVENT_CAPTURE_RELEASED */
 235          2,     /*  9 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
 236          3,     /* 10 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
 237          4,     /* 11 SONYPI_EVENT_FNKEY_ESC */
 238          5,     /* 12 SONYPI_EVENT_FNKEY_F1 */
 239          6,     /* 13 SONYPI_EVENT_FNKEY_F2 */
 240          7,     /* 14 SONYPI_EVENT_FNKEY_F3 */
 241          8,     /* 15 SONYPI_EVENT_FNKEY_F4 */
 242          9,     /* 16 SONYPI_EVENT_FNKEY_F5 */
 243         10,     /* 17 SONYPI_EVENT_FNKEY_F6 */
 244         11,     /* 18 SONYPI_EVENT_FNKEY_F7 */
 245         12,     /* 19 SONYPI_EVENT_FNKEY_F8 */
 246         13,     /* 20 SONYPI_EVENT_FNKEY_F9 */
 247         14,     /* 21 SONYPI_EVENT_FNKEY_F10 */
 248         15,     /* 22 SONYPI_EVENT_FNKEY_F11 */
 249         16,     /* 23 SONYPI_EVENT_FNKEY_F12 */
 250         17,     /* 24 SONYPI_EVENT_FNKEY_1 */
 251         18,     /* 25 SONYPI_EVENT_FNKEY_2 */
 252         19,     /* 26 SONYPI_EVENT_FNKEY_D */
 253         20,     /* 27 SONYPI_EVENT_FNKEY_E */
 254         21,     /* 28 SONYPI_EVENT_FNKEY_F */
 255         22,     /* 29 SONYPI_EVENT_FNKEY_S */
 256         23,     /* 30 SONYPI_EVENT_FNKEY_B */
 257         24,     /* 31 SONYPI_EVENT_BLUETOOTH_PRESSED */
 258         25,     /* 32 SONYPI_EVENT_PKEY_P1 */
 259         26,     /* 33 SONYPI_EVENT_PKEY_P2 */
 260         27,     /* 34 SONYPI_EVENT_PKEY_P3 */
 261         28,     /* 35 SONYPI_EVENT_BACK_PRESSED */
 262         -1,     /* 36 SONYPI_EVENT_LID_CLOSED */
 263         -1,     /* 37 SONYPI_EVENT_LID_OPENED */
 264         29,     /* 38 SONYPI_EVENT_BLUETOOTH_ON */
 265         30,     /* 39 SONYPI_EVENT_BLUETOOTH_OFF */
 266         31,     /* 40 SONYPI_EVENT_HELP_PRESSED */
 267         32,     /* 41 SONYPI_EVENT_FNKEY_ONLY */
 268         33,     /* 42 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
 269         34,     /* 43 SONYPI_EVENT_JOGDIAL_FAST_UP */
 270         35,     /* 44 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
 271         36,     /* 45 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
 272         37,     /* 46 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
 273         38,     /* 47 SONYPI_EVENT_JOGDIAL_VFAST_UP */
 274         39,     /* 48 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
 275         40,     /* 49 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
 276         41,     /* 50 SONYPI_EVENT_ZOOM_PRESSED */
 277         42,     /* 51 SONYPI_EVENT_THUMBPHRASE_PRESSED */
 278         43,     /* 52 SONYPI_EVENT_MEYE_FACE */
 279         44,     /* 53 SONYPI_EVENT_MEYE_OPPOSITE */
 280         45,     /* 54 SONYPI_EVENT_MEMORYSTICK_INSERT */
 281         46,     /* 55 SONYPI_EVENT_MEMORYSTICK_EJECT */
 282         -1,     /* 56 SONYPI_EVENT_ANYBUTTON_RELEASED */
 283         -1,     /* 57 SONYPI_EVENT_BATTERY_INSERT */
 284         -1,     /* 58 SONYPI_EVENT_BATTERY_REMOVE */
 285         -1,     /* 59 SONYPI_EVENT_FNKEY_RELEASED */
 286         47,     /* 60 SONYPI_EVENT_WIRELESS_ON */
 287         48,     /* 61 SONYPI_EVENT_WIRELESS_OFF */
 288         49,     /* 62 SONYPI_EVENT_ZOOM_IN_PRESSED */
 289         50,     /* 63 SONYPI_EVENT_ZOOM_OUT_PRESSED */
 290         51,     /* 64 SONYPI_EVENT_CD_EJECT_PRESSED */
 291         52,     /* 65 SONYPI_EVENT_MODEKEY_PRESSED */
 292         53,     /* 66 SONYPI_EVENT_PKEY_P4 */
 293         54,     /* 67 SONYPI_EVENT_PKEY_P5 */
 294         55,     /* 68 SONYPI_EVENT_SETTINGKEY_PRESSED */
 295         56,     /* 69 SONYPI_EVENT_VOLUME_INC_PRESSED */
 296         57,     /* 70 SONYPI_EVENT_VOLUME_DEC_PRESSED */
 297         -1,     /* 71 SONYPI_EVENT_BRIGHTNESS_PRESSED */
 298         58,     /* 72 SONYPI_EVENT_MEDIA_PRESSED */
 299         59,     /* 72 SONYPI_EVENT_VENDOR_PRESSED */
 300 };
 301
 302 static int sony_laptop_input_keycode_map[] = {
 303         KEY_CAMERA,     /*  0 SONYPI_EVENT_CAPTURE_PRESSED */
 304         KEY_RESERVED,   /*  1 SONYPI_EVENT_CAPTURE_RELEASED */
 305         KEY_RESERVED,   /*  2 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
 306         KEY_RESERVED,   /*  3 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
 307         KEY_FN_ESC,     /*  4 SONYPI_EVENT_FNKEY_ESC */
 308         KEY_FN_F1,      /*  5 SONYPI_EVENT_FNKEY_F1 */
 309         KEY_FN_F2,      /*  6 SONYPI_EVENT_FNKEY_F2 */
 310         KEY_FN_F3,      /*  7 SONYPI_EVENT_FNKEY_F3 */
 311         KEY_FN_F4,      /*  8 SONYPI_EVENT_FNKEY_F4 */
 312         KEY_FN_F5,      /*  9 SONYPI_EVENT_FNKEY_F5 */
 313         KEY_FN_F6,      /* 10 SONYPI_EVENT_FNKEY_F6 */
 314         KEY_FN_F7,      /* 11 SONYPI_EVENT_FNKEY_F7 */
 315         KEY_FN_F8,      /* 12 SONYPI_EVENT_FNKEY_F8 */
 316         KEY_FN_F9,      /* 13 SONYPI_EVENT_FNKEY_F9 */
 317         KEY_FN_F10,     /* 14 SONYPI_EVENT_FNKEY_F10 */
 318         KEY_FN_F11,     /* 15 SONYPI_EVENT_FNKEY_F11 */
 319         KEY_FN_F12,     /* 16 SONYPI_EVENT_FNKEY_F12 */
 320         KEY_FN_1,       /* 17 SONYPI_EVENT_FNKEY_1 */
 321         KEY_FN_2,       /* 18 SONYPI_EVENT_FNKEY_2 */
 322         KEY_FN_D,       /* 19 SONYPI_EVENT_FNKEY_D */
 323         KEY_FN_E,       /* 20 SONYPI_EVENT_FNKEY_E */
 324         KEY_FN_F,       /* 21 SONYPI_EVENT_FNKEY_F */
 325         KEY_FN_S,       /* 22 SONYPI_EVENT_FNKEY_S */
 326         KEY_FN_B,       /* 23 SONYPI_EVENT_FNKEY_B */
 327         KEY_BLUETOOTH,  /* 24 SONYPI_EVENT_BLUETOOTH_PRESSED */
 328         KEY_PROG1,      /* 25 SONYPI_EVENT_PKEY_P1 */
 329         KEY_PROG2,      /* 26 SONYPI_EVENT_PKEY_P2 */
 330         KEY_PROG3,      /* 27 SONYPI_EVENT_PKEY_P3 */
 331         KEY_BACK,       /* 28 SONYPI_EVENT_BACK_PRESSED */
 332         KEY_BLUETOOTH,  /* 29 SONYPI_EVENT_BLUETOOTH_ON */
 333         KEY_BLUETOOTH,  /* 30 SONYPI_EVENT_BLUETOOTH_OFF */
 334         KEY_HELP,       /* 31 SONYPI_EVENT_HELP_PRESSED */
 335         KEY_FN,         /* 32 SONYPI_EVENT_FNKEY_ONLY */
 336         KEY_RESERVED,   /* 33 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
 337         KEY_RESERVED,   /* 34 SONYPI_EVENT_JOGDIAL_FAST_UP */
 338         KEY_RESERVED,   /* 35 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
 339         KEY_RESERVED,   /* 36 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
 340         KEY_RESERVED,   /* 37 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
 341         KEY_RESERVED,   /* 38 SONYPI_EVENT_JOGDIAL_VFAST_UP */
 342         KEY_RESERVED,   /* 39 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
 343         KEY_RESERVED,   /* 40 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
 344         KEY_ZOOM,       /* 41 SONYPI_EVENT_ZOOM_PRESSED */
 345         BTN_THUMB,      /* 42 SONYPI_EVENT_THUMBPHRASE_PRESSED */
 346         KEY_RESERVED,   /* 43 SONYPI_EVENT_MEYE_FACE */
 347         KEY_RESERVED,   /* 44 SONYPI_EVENT_MEYE_OPPOSITE */
 348         KEY_RESERVED,   /* 45 SONYPI_EVENT_MEMORYSTICK_INSERT */
 349         KEY_RESERVED,   /* 46 SONYPI_EVENT_MEMORYSTICK_EJECT */
 350         KEY_WLAN,       /* 47 SONYPI_EVENT_WIRELESS_ON */
 351         KEY_WLAN,       /* 48 SONYPI_EVENT_WIRELESS_OFF */
 352         KEY_ZOOMIN,     /* 49 SONYPI_EVENT_ZOOM_IN_PRESSED */
 353         KEY_ZOOMOUT,    /* 50 SONYPI_EVENT_ZOOM_OUT_PRESSED */
 354         KEY_EJECTCD,    /* 51 SONYPI_EVENT_CD_EJECT_PRESSED */
 355         KEY_F13,        /* 52 SONYPI_EVENT_MODEKEY_PRESSED */
 356         KEY_PROG4,      /* 53 SONYPI_EVENT_PKEY_P4 */
 357         KEY_F14,        /* 54 SONYPI_EVENT_PKEY_P5 */
 358         KEY_F15,        /* 55 SONYPI_EVENT_SETTINGKEY_PRESSED */
 359         KEY_VOLUMEUP,   /* 56 SONYPI_EVENT_VOLUME_INC_PRESSED */
 360         KEY_VOLUMEDOWN, /* 57 SONYPI_EVENT_VOLUME_DEC_PRESSED */
 361         KEY_MEDIA,      /* 58 SONYPI_EVENT_MEDIA_PRESSED */
 362         KEY_VENDOR,     /* 59 SONYPI_EVENT_VENDOR_PRESSED */
 363 };
 364
 365 /* release buttons after a short delay if pressed */
 366 static void do_sony_laptop_release_key(struct timer_list *unused)
 367 {
 368         struct sony_laptop_keypress kp;
 369         unsigned long flags;
 370
 371         spin_lock_irqsave(&sony_laptop_input.fifo_lock, flags);
 372
 373         if (kfifo_out(&sony_laptop_input.fifo,
 374                       (unsigned char *)&kp, sizeof(kp)) == sizeof(kp)) {
 375                 input_report_key(kp.dev, kp.key, 0);
 376                 input_sync(kp.dev);
 377         }
 378
 379         /* If there is something in the fifo schedule next release. */
 380         if (kfifo_len(&sony_laptop_input.fifo) != 0)
 381                 mod_timer(&sony_laptop_input.release_key_timer,
 382                           jiffies + msecs_to_jiffies(10));
 383
 384         spin_unlock_irqrestore(&sony_laptop_input.fifo_lock, flags);
 385 }
 386
 387 /* forward event to the input subsystem */
 388 static void sony_laptop_report_input_event(u8 event)
 389 {
 390         struct input_dev *jog_dev = sony_laptop_input.jog_dev;
 391         struct input_dev *key_dev = sony_laptop_input.key_dev;
 392         struct sony_laptop_keypress kp = { NULL };
 393         int scancode = -1;
 394
 395         if (event == SONYPI_EVENT_FNKEY_RELEASED ||
 396                         event == SONYPI_EVENT_ANYBUTTON_RELEASED) {
 397                 /* Nothing, not all VAIOs generate this event */
 398                 return;
 399         }
 400
 401         /* report events */
 402         switch (event) {
 403         /* jog_dev events */
 404         case SONYPI_EVENT_JOGDIAL_UP:
 405         case SONYPI_EVENT_JOGDIAL_UP_PRESSED:
 406                 input_report_rel(jog_dev, REL_WHEEL, 1);
 407                 input_sync(jog_dev);
 408                 return;
 409
 410         case SONYPI_EVENT_JOGDIAL_DOWN:
 411         case SONYPI_EVENT_JOGDIAL_DOWN_PRESSED:
 412                 input_report_rel(jog_dev, REL_WHEEL, -1);
 413                 input_sync(jog_dev);
 414                 return;
 415
 416         /* key_dev events */
 417         case SONYPI_EVENT_JOGDIAL_PRESSED:
 418                 kp.key = BTN_MIDDLE;
 419                 kp.dev = jog_dev;
 420                 break;
 421
 422         default:
 423                 if (event >= ARRAY_SIZE(sony_laptop_input_index)) {
 424                         dprintk("sony_laptop_report_input_event, event not known: %d\n", event);
 425                         break;
 426                 }
 427                 if ((scancode = sony_laptop_input_index[event]) != -1) {
 428                         kp.key = sony_laptop_input_keycode_map[scancode];
 429                         if (kp.key != KEY_UNKNOWN)
 430                                 kp.dev = key_dev;
 431                 }
 432                 break;
 433         }
 434
 435         if (kp.dev) {
 436                 /* if we have a scancode we emit it so we can always
 437                     remap the key */
 438                 if (scancode != -1)
 439                         input_event(kp.dev, EV_MSC, MSC_SCAN, scancode);
 440                 input_report_key(kp.dev, kp.key, 1);
 441                 input_sync(kp.dev);
 442
 443                 /* schedule key release */
 444                 kfifo_in_locked(&sony_laptop_input.fifo,
 445                                 (unsigned char *)&kp, sizeof(kp),
 446                                 &sony_laptop_input.fifo_lock);
 447                 mod_timer(&sony_laptop_input.release_key_timer,
 448                           jiffies + msecs_to_jiffies(10));
 449         } else
 450                 dprintk("unknown input event %.2x\n", event);
 451 }
 452
 453 static int sony_laptop_setup_input(struct acpi_device *acpi_device)
 454 {
 455         struct input_dev *jog_dev;
 456         struct input_dev *key_dev;
 457         int i;
 458         int error;
 459
 460         /* don't run again if already initialized */
 461         if (atomic_add_return(1, &sony_laptop_input.users) > 1)
 462                 return 0;
 463
 464         /* kfifo */
 465         spin_lock_init(&sony_laptop_input.fifo_lock);
 466         error = kfifo_alloc(&sony_laptop_input.fifo,
 467                             SONY_LAPTOP_BUF_SIZE, GFP_KERNEL);
 468         if (error) {
 469                 pr_err("kfifo_alloc failed\n");
 470                 goto err_dec_users;
 471         }
 472
 473         timer_setup(&sony_laptop_input.release_key_timer,
 474                     do_sony_laptop_release_key, 0);
 475
 476         /* input keys */
 477         key_dev = input_allocate_device();
 478         if (!key_dev) {
 479                 error = -ENOMEM;
 480                 goto err_free_kfifo;
 481         }
 482
 483         key_dev->name = "Sony Vaio Keys";
 484         key_dev->id.bustype = BUS_ISA;
 485         key_dev->id.vendor = PCI_VENDOR_ID_SONY;
 486         key_dev->dev.parent = &acpi_device->dev;
 487
 488         /* Initialize the Input Drivers: special keys */
 489         input_set_capability(key_dev, EV_MSC, MSC_SCAN);
 490
 491         __set_bit(EV_KEY, key_dev->evbit);
 492         key_dev->keycodesize = sizeof(sony_laptop_input_keycode_map[0]);
 493         key_dev->keycodemax = ARRAY_SIZE(sony_laptop_input_keycode_map);
 494         key_dev->keycode = &sony_laptop_input_keycode_map;
 495         for (i = 0; i < ARRAY_SIZE(sony_laptop_input_keycode_map); i++)
 496                 __set_bit(sony_laptop_input_keycode_map[i], key_dev->keybit);
 497         __clear_bit(KEY_RESERVED, key_dev->keybit);
 498
 499         error = input_register_device(key_dev);
 500         if (error)
 501                 goto err_free_keydev;
 502
 503         sony_laptop_input.key_dev = key_dev;
 504
 505         /* jogdial */
 506         jog_dev = input_allocate_device();
 507         if (!jog_dev) {
 508                 error = -ENOMEM;
 509                 goto err_unregister_keydev;
 510         }
 511
 512         jog_dev->name = "Sony Vaio Jogdial";
 513         jog_dev->id.bustype = BUS_ISA;
 514         jog_dev->id.vendor = PCI_VENDOR_ID_SONY;
 515         jog_dev->dev.parent = &acpi_device->dev;
 516
 517         input_set_capability(jog_dev, EV_KEY, BTN_MIDDLE);
 518         input_set_capability(jog_dev, EV_REL, REL_WHEEL);
 519
 520         error = input_register_device(jog_dev);
 521         if (error)
 522                 goto err_free_jogdev;
 523
 524         sony_laptop_input.jog_dev = jog_dev;
 525
 526         return 0;
 527
 528 err_free_jogdev:
 529         input_free_device(jog_dev);
 530
 531 err_unregister_keydev:
 532         input_unregister_device(key_dev);
 533         /* to avoid kref underflow below at input_free_device */
 534         key_dev = NULL;
 535
 536 err_free_keydev:
 537         input_free_device(key_dev);
 538
 539 err_free_kfifo:
 540         kfifo_free(&sony_laptop_input.fifo);
 541
 542 err_dec_users:
 543         atomic_dec(&sony_laptop_input.users);
 544         return error;
 545 }
 546
 547 static void sony_laptop_remove_input(void)
 548 {
 549         struct sony_laptop_keypress kp = { NULL };
 550
 551         /* Cleanup only after the last user has gone */
 552         if (!atomic_dec_and_test(&sony_laptop_input.users))
 553                 return;
 554
 555         del_timer_sync(&sony_laptop_input.release_key_timer);
 556
 557         /*
 558          * Generate key-up events for remaining keys. Note that we don't
 559          * need locking since nobody is adding new events to the kfifo.
 560          */
 561         while (kfifo_out(&sony_laptop_input.fifo,
 562                          (unsigned char *)&kp, sizeof(kp)) == sizeof(kp)) {
 563                 input_report_key(kp.dev, kp.key, 0);
 564                 input_sync(kp.dev);
 565         }
 566
 567         /* destroy input devs */
 568         input_unregister_device(sony_laptop_input.key_dev);
 569         sony_laptop_input.key_dev = NULL;
 570
 571         if (sony_laptop_input.jog_dev) {
 572                 input_unregister_device(sony_laptop_input.jog_dev);
 573                 sony_laptop_input.jog_dev = NULL;
 574         }
 575
 576         kfifo_free(&sony_laptop_input.fifo);
 577 }
 578
 579 /*********** Platform Device ***********/
 580
 581 static atomic_t sony_pf_users = ATOMIC_INIT(0);
 582 static struct platform_driver sony_pf_driver = {
 583         .driver = {
 584                    .name = "sony-laptop",
 585                    }
 586 };
 587 static struct platform_device *sony_pf_device;
 588
 589 static int sony_pf_add(void)
 590 {
 591         int ret = 0;
 592
 593         /* don't run again if already initialized */
 594         if (atomic_add_return(1, &sony_pf_users) > 1)
 595                 return 0;
 596
 597         ret = platform_driver_register(&sony_pf_driver);
 598         if (ret)
 599                 goto out;
 600
 601         sony_pf_device = platform_device_alloc("sony-laptop", -1);
 602         if (!sony_pf_device) {
 603                 ret = -ENOMEM;
 604                 goto out_platform_registered;
 605         }
 606
 607         ret = platform_device_add(sony_pf_device);
 608         if (ret)
 609                 goto out_platform_alloced;
 610
 611         return 0;
 612
 613       out_platform_alloced:
 614         platform_device_put(sony_pf_device);
 615         sony_pf_device = NULL;
 616       out_platform_registered:
 617         platform_driver_unregister(&sony_pf_driver);
 618       out:
 619         atomic_dec(&sony_pf_users);
 620         return ret;
 621 }
 622
 623 static void sony_pf_remove(void)
 624 {
 625         /* deregister only after the last user has gone */
 626         if (!atomic_dec_and_test(&sony_pf_users))
 627                 return;
 628
 629         platform_device_unregister(sony_pf_device);
 630         platform_driver_unregister(&sony_pf_driver);
 631 }
 632
 633 /*********** SNC (SNY5001) Device ***********/
 634
 635 /* the device uses 1-based values, while the backlight subsystem uses
 636    0-based values */
 637 #define SONY_MAX_BRIGHTNESS     8
 638
 639 #define SNC_VALIDATE_IN         0
 640 #define SNC_VALIDATE_OUT        1
 641
 642 static ssize_t sony_nc_sysfs_show(struct device *, struct device_attribute *,
 643                               char *);
 644 static ssize_t sony_nc_sysfs_store(struct device *, struct device_attribute *,
 645                                const char *, size_t);
 646 static int boolean_validate(const int, const int);
 647 static int brightness_default_validate(const int, const int);
 648
 649 struct sony_nc_value {
 650         char *name;             /* name of the entry */
 651         char **acpiget;         /* names of the ACPI get function */
 652         char **acpiset;         /* names of the ACPI set function */
 653         int (*validate)(const int, const int);  /* input/output validation */
 654         int value;              /* current setting */
 655         int valid;              /* Has ever been set */
 656         int debug;              /* active only in debug mode ? */
 657         struct device_attribute devattr;        /* sysfs attribute */
 658 };
 659
 660 #define SNC_HANDLE_NAMES(_name, _values...) \
 661         static char *snc_##_name[] = { _values, NULL }
 662
 663 #define SNC_HANDLE(_name, _getters, _setters, _validate, _debug) \
 664         { \
 665                 .name           = __stringify(_name), \
 666                 .acpiget        = _getters, \
 667                 .acpiset        = _setters, \
 668                 .validate       = _validate, \
 669                 .debug          = _debug, \
 670                 .devattr        = __ATTR(_name, 0, sony_nc_sysfs_show, sony_nc_sysfs_store), \
 671         }
 672
 673 #define SNC_HANDLE_NULL { .name = NULL }
 674
 675 SNC_HANDLE_NAMES(fnkey_get, "GHKE");
 676
 677 SNC_HANDLE_NAMES(brightness_def_get, "GPBR");
 678 SNC_HANDLE_NAMES(brightness_def_set, "SPBR");
 679
 680 SNC_HANDLE_NAMES(cdpower_get, "GCDP");
 681 SNC_HANDLE_NAMES(cdpower_set, "SCDP", "CDPW");
 682
 683 SNC_HANDLE_NAMES(audiopower_get, "GAZP");
 684 SNC_HANDLE_NAMES(audiopower_set, "AZPW");
 685
 686 SNC_HANDLE_NAMES(lanpower_get, "GLNP");
 687 SNC_HANDLE_NAMES(lanpower_set, "LNPW");
 688
 689 SNC_HANDLE_NAMES(lidstate_get, "GLID");
 690
 691 SNC_HANDLE_NAMES(indicatorlamp_get, "GILS");
 692 SNC_HANDLE_NAMES(indicatorlamp_set, "SILS");
 693
 694 SNC_HANDLE_NAMES(gainbass_get, "GMGB");
 695 SNC_HANDLE_NAMES(gainbass_set, "CMGB");
 696
 697 SNC_HANDLE_NAMES(PID_get, "GPID");
 698
 699 SNC_HANDLE_NAMES(CTR_get, "GCTR");
 700 SNC_HANDLE_NAMES(CTR_set, "SCTR");
 701
 702 SNC_HANDLE_NAMES(PCR_get, "GPCR");
 703 SNC_HANDLE_NAMES(PCR_set, "SPCR");
 704
 705 SNC_HANDLE_NAMES(CMI_get, "GCMI");
 706 SNC_HANDLE_NAMES(CMI_set, "SCMI");
 707
 708 static struct sony_nc_value sony_nc_values[] = {
 709         SNC_HANDLE(brightness_default, snc_brightness_def_get,
 710                         snc_brightness_def_set, brightness_default_validate, 0),
 711         SNC_HANDLE(fnkey, snc_fnkey_get, NULL, NULL, 0),
 712         SNC_HANDLE(cdpower, snc_cdpower_get, snc_cdpower_set, boolean_validate, 0),
 713         SNC_HANDLE(audiopower, snc_audiopower_get, snc_audiopower_set,
 714                         boolean_validate, 0),
 715         SNC_HANDLE(lanpower, snc_lanpower_get, snc_lanpower_set,
 716                         boolean_validate, 1),
 717         SNC_HANDLE(lidstate, snc_lidstate_get, NULL,
 718                         boolean_validate, 0),
 719         SNC_HANDLE(indicatorlamp, snc_indicatorlamp_get, snc_indicatorlamp_set,
 720                         boolean_validate, 0),
 721         SNC_HANDLE(gainbass, snc_gainbass_get, snc_gainbass_set,
 722                         boolean_validate, 0),
 723         /* unknown methods */
 724         SNC_HANDLE(PID, snc_PID_get, NULL, NULL, 1),
 725         SNC_HANDLE(CTR, snc_CTR_get, snc_CTR_set, NULL, 1),
 726         SNC_HANDLE(PCR, snc_PCR_get, snc_PCR_set, NULL, 1),
 727         SNC_HANDLE(CMI, snc_CMI_get, snc_CMI_set, NULL, 1),
 728         SNC_HANDLE_NULL
 729 };
 730
 731 static acpi_handle sony_nc_acpi_handle;
 732 static struct acpi_device *sony_nc_acpi_device = NULL;
 733
 734 /*
 735  * acpi_evaluate_object wrappers
 736  * all useful calls into SNC methods take one or zero parameters and return
 737  * integers or arrays.
 738  */
 739 static union acpi_object *__call_snc_method(acpi_handle handle, char *method,
 740                 u64 *value)
 741 {
 742         union acpi_object *result = NULL;
 743         struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
 744         acpi_status status;
 745
 746         if (value) {
 747                 struct acpi_object_list params;
 748                 union acpi_object in;
 749                 in.type = ACPI_TYPE_INTEGER;
 750                 in.integer.value = *value;
 751                 params.count = 1;
 752                 params.pointer = &in;
 753                 status = acpi_evaluate_object(handle, method, &params, &output);
 754                 dprintk("__call_snc_method: [%s:0x%.8x%.8x]\n", method,
 755                                 (unsigned int)(*value >> 32),
 756                                 (unsigned int)*value & 0xffffffff);
 757         } else {
 758                 status = acpi_evaluate_object(handle, method, NULL, &output);
 759                 dprintk("__call_snc_method: [%s]\n", method);
 760         }
 761
 762         if (ACPI_FAILURE(status)) {
 763                 pr_err("Failed to evaluate [%s]\n", method);
 764                 return NULL;
 765         }
 766
 767         result = (union acpi_object *) output.pointer;
 768         if (!result)
 769                 dprintk("No return object [%s]\n", method);
 770
 771         return result;
 772 }
 773
 774 static int sony_nc_int_call(acpi_handle handle, char *name, int *value,
 775                 int *result)
 776 {
 777         union acpi_object *object = NULL;
 778         if (value) {
 779                 u64 v = *value;
 780                 object = __call_snc_method(handle, name, &v);
 781         } else
 782                 object = __call_snc_method(handle, name, NULL);
 783
 784         if (!object)
 785                 return -EINVAL;
 786
 787         if (object->type != ACPI_TYPE_INTEGER) {
 788                 pr_warn("Invalid acpi_object: expected 0x%x got 0x%x\n",
 789                                 ACPI_TYPE_INTEGER, object->type);
 790                 kfree(object);
 791                 return -EINVAL;
 792         }
 793
 794         if (result)
 795                 *result = object->integer.value;
 796
 797         kfree(object);
 798         return 0;
 799 }
 800
 801 #define MIN(a, b)       (a > b ? b : a)
 802 static int sony_nc_buffer_call(acpi_handle handle, char *name, u64 *value,
 803                 void *buffer, size_t buflen)
 804 {
 805         int ret = 0;
 806         size_t len;
 807         union acpi_object *object = __call_snc_method(handle, name, value);
 808
 809         if (!object)
 810                 return -EINVAL;
 811
 812         if (object->type == ACPI_TYPE_BUFFER) {
 813                 len = MIN(buflen, object->buffer.length);
 814                 memcpy(buffer, object->buffer.pointer, len);
 815
 816         } else if (object->type == ACPI_TYPE_INTEGER) {
 817                 len = MIN(buflen, sizeof(object->integer.value));
 818                 memcpy(buffer, &object->integer.value, len);
 819
 820         } else {
 821                 pr_warn("Invalid acpi_object: expected 0x%x got 0x%x\n",
 822                                 ACPI_TYPE_BUFFER, object->type);
 823                 ret = -EINVAL;
 824         }
 825
 826         kfree(object);
 827         return ret;
 828 }
 829
 830 struct sony_nc_handles {
 831         u16 cap[0x10];
 832         struct device_attribute devattr;
 833 };
 834
 835 static struct sony_nc_handles *handles;
 836
 837 static ssize_t sony_nc_handles_show(struct device *dev,
 838                 struct device_attribute *attr, char *buffer)
 839 {
 840         ssize_t len = 0;
 841         int i;
 842
 843         for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
 844                 len += snprintf(buffer + len, PAGE_SIZE - len, "0x%.4x ",
 845                                 handles->cap[i]);
 846         }
 847         len += snprintf(buffer + len, PAGE_SIZE - len, "\n");
 848
 849         return len;
 850 }
 851
 852 static int sony_nc_handles_setup(struct platform_device *pd)
 853 {
 854         int i, r, result, arg;
 855
 856         handles = kzalloc(sizeof(*handles), GFP_KERNEL);
 857         if (!handles)
 858                 return -ENOMEM;
 859
 860         for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
 861                 arg = i + 0x20;
 862                 r = sony_nc_int_call(sony_nc_acpi_handle, "SN00", &arg,
 863                                         &result);
 864                 if (!r) {
 865                         dprintk("caching handle 0x%.4x (offset: 0x%.2x)\n",
 866                                         result, i);
 867                         handles->cap[i] = result;
 868                 }
 869         }
 870
 871         if (debug) {
 872                 sysfs_attr_init(&handles->devattr.attr);
 873                 handles->devattr.attr.name = "handles";
 874                 handles->devattr.attr.mode = S_IRUGO;
 875                 handles->devattr.show = sony_nc_handles_show;
 876
 877                 /* allow reading capabilities via sysfs */
 878                 if (device_create_file(&pd->dev, &handles->devattr)) {
 879                         kfree(handles);
 880                         handles = NULL;
 881                         return -1;
 882                 }
 883         }
 884
 885         return 0;
 886 }
 887
 888 static int sony_nc_handles_cleanup(struct platform_device *pd)
 889 {
 890         if (handles) {
 891                 if (debug)
 892                         device_remove_file(&pd->dev, &handles->devattr);
 893                 kfree(handles);
 894                 handles = NULL;
 895         }
 896         return 0;
 897 }
 898
 899 static int sony_find_snc_handle(int handle)
 900 {
 901         int i;
 902
 903         /* not initialized yet, return early */
 904         if (!handles || !handle)
 905                 return -EINVAL;
 906
 907         for (i = 0; i < 0x10; i++) {
 908                 if (handles->cap[i] == handle) {
 909                         dprintk("found handle 0x%.4x (offset: 0x%.2x)\n",
 910                                         handle, i);
 911                         return i;
 912                 }
 913         }
 914         dprintk("handle 0x%.4x not found\n", handle);
 915         return -EINVAL;
 916 }
 917
 918 static int sony_call_snc_handle(int handle, int argument, int *result)
 919 {
 920         int arg, ret = 0;
 921         int offset = sony_find_snc_handle(handle);
 922
 923         if (offset < 0)
 924                 return offset;
 925
 926         arg = offset | argument;
 927         ret = sony_nc_int_call(sony_nc_acpi_handle, "SN07", &arg, result);
 928         dprintk("called SN07 with 0x%.4x (result: 0x%.4x)\n", arg, *result);
 929         return ret;
 930 }
 931
 932 /*
 933  * sony_nc_values input/output validate functions
 934  */
 935
 936 /* brightness_default_validate:
 937  *
 938  * manipulate input output values to keep consistency with the
 939  * backlight framework for which brightness values are 0-based.
 940  */
 941 static int brightness_default_validate(const int direction, const int value)
 942 {
 943         switch (direction) {
 944                 case SNC_VALIDATE_OUT:
 945                         return value - 1;
 946                 case SNC_VALIDATE_IN:
 947                         if (value >= 0 && value < SONY_MAX_BRIGHTNESS)
 948                                 return value + 1;
 949         }
 950         return -EINVAL;
 951 }
 952
 953 /* boolean_validate:
 954  *
 955  * on input validate boolean values 0/1, on output just pass the
 956  * received value.
 957  */
 958 static int boolean_validate(const int direction, const int value)
 959 {
 960         if (direction == SNC_VALIDATE_IN) {
 961                 if (value != 0 && value != 1)
 962                         return -EINVAL;
 963         }
 964         return value;
 965 }
 966
 967 /*
 968  * Sysfs show/store common to all sony_nc_values
 969  */
 970 static ssize_t sony_nc_sysfs_show(struct device *dev, struct device_attribute *attr,
 971                               char *buffer)
 972 {
 973         int value, ret = 0;
 974         struct sony_nc_value *item =
 975             container_of(attr, struct sony_nc_value, devattr);
 976
 977         if (!*item->acpiget)
 978                 return -EIO;
 979
 980         ret = sony_nc_int_call(sony_nc_acpi_handle, *item->acpiget, NULL,
 981                                 &value);
 982         if (ret < 0)
 983                 return -EIO;
 984
 985         if (item->validate)
 986                 value = item->validate(SNC_VALIDATE_OUT, value);
 987
 988         return snprintf(buffer, PAGE_SIZE, "%d\n", value);
 989 }
 990
 991 static ssize_t sony_nc_sysfs_store(struct device *dev,
 992                                struct device_attribute *attr,
 993                                const char *buffer, size_t count)
 994 {
 995         int value;
 996         int ret = 0;
 997         struct sony_nc_value *item =
 998             container_of(attr, struct sony_nc_value, devattr);
 999
1000         if (!item->acpiset)
1001                 return -EIO;
1002
1003         if (count > 31)
1004                 return -EINVAL;
1005
1006         if (kstrtoint(buffer, 10, &value))
1007                 return -EINVAL;
1008
1009         if (item->validate)
1010                 value = item->validate(SNC_VALIDATE_IN, value);
1011
1012         if (value < 0)
1013                 return value;
1014
1015         ret = sony_nc_int_call(sony_nc_acpi_handle, *item->acpiset,
1016                                &value, NULL);
1017         if (ret < 0)
1018                 return -EIO;
1019
1020         item->value = value;
1021         item->valid = 1;
1022         return count;
1023 }
1024
1025
1026 /*
1027  * Backlight device
1028  */
1029 struct sony_backlight_props {
1030         struct backlight_device *dev;
1031         int                     handle;
1032         int                     cmd_base;
1033         u8                      offset;
1034         u8                      maxlvl;
1035 };
1036 static struct sony_backlight_props sony_bl_props;
1037
1038 static int sony_backlight_update_status(struct backlight_device *bd)
1039 {
1040         int arg = bd->props.brightness + 1;
1041         return sony_nc_int_call(sony_nc_acpi_handle, "SBRT", &arg, NULL);
1042 }
1043
1044 static int sony_backlight_get_brightness(struct backlight_device *bd)
1045 {
1046         int value;
1047
1048         if (sony_nc_int_call(sony_nc_acpi_handle, "GBRT", NULL, &value))
1049                 return 0;
1050         /* brightness levels are 1-based, while backlight ones are 0-based */
1051         return value - 1;
1052 }
1053
1054 static int sony_nc_get_brightness_ng(struct backlight_device *bd)
1055 {
1056         int result;
1057         struct sony_backlight_props *sdev =
1058                 (struct sony_backlight_props *)bl_get_data(bd);
1059
1060         sony_call_snc_handle(sdev->handle, sdev->cmd_base + 0x100, &result);
1061
1062         return (result & 0xff) - sdev->offset;
1063 }
1064
1065 static int sony_nc_update_status_ng(struct backlight_device *bd)
1066 {
1067         int value, result;
1068         struct sony_backlight_props *sdev =
1069                 (struct sony_backlight_props *)bl_get_data(bd);
1070
1071         value = bd->props.brightness + sdev->offset;
1072         if (sony_call_snc_handle(sdev->handle, sdev->cmd_base | (value << 0x10),
1073                                 &result))
1074                 return -EIO;
1075
1076         return value;
1077 }
1078
1079 static const struct backlight_ops sony_backlight_ops = {
1080         .options = BL_CORE_SUSPENDRESUME,
1081         .update_status = sony_backlight_update_status,
1082         .get_brightness = sony_backlight_get_brightness,
1083 };
1084 static const struct backlight_ops sony_backlight_ng_ops = {
1085         .options = BL_CORE_SUSPENDRESUME,
1086         .update_status = sony_nc_update_status_ng,
1087         .get_brightness = sony_nc_get_brightness_ng,
1088 };
1089
1090 /*
1091  * New SNC-only Vaios event mapping to driver known keys
1092  */
1093 struct sony_nc_event {
1094         u8      data;
1095         u8      event;
1096 };
1097
1098 static struct sony_nc_event sony_100_events[] = {
1099         { 0x90, SONYPI_EVENT_PKEY_P1 },
1100         { 0x10, SONYPI_EVENT_ANYBUTTON_RELEASED },
1101         { 0x91, SONYPI_EVENT_PKEY_P2 },
1102         { 0x11, SONYPI_EVENT_ANYBUTTON_RELEASED },
1103         { 0x81, SONYPI_EVENT_FNKEY_F1 },
1104         { 0x01, SONYPI_EVENT_FNKEY_RELEASED },
1105         { 0x82, SONYPI_EVENT_FNKEY_F2 },
1106         { 0x02, SONYPI_EVENT_FNKEY_RELEASED },
1107         { 0x83, SONYPI_EVENT_FNKEY_F3 },
1108         { 0x03, SONYPI_EVENT_FNKEY_RELEASED },
1109         { 0x84, SONYPI_EVENT_FNKEY_F4 },
1110         { 0x04, SONYPI_EVENT_FNKEY_RELEASED },
1111         { 0x85, SONYPI_EVENT_FNKEY_F5 },
1112         { 0x05, SONYPI_EVENT_FNKEY_RELEASED },
1113         { 0x86, SONYPI_EVENT_FNKEY_F6 },
1114         { 0x06, SONYPI_EVENT_FNKEY_RELEASED },
1115         { 0x87, SONYPI_EVENT_FNKEY_F7 },
1116         { 0x07, SONYPI_EVENT_FNKEY_RELEASED },
1117         { 0x88, SONYPI_EVENT_FNKEY_F8 },
1118         { 0x08, SONYPI_EVENT_FNKEY_RELEASED },
1119         { 0x89, SONYPI_EVENT_FNKEY_F9 },
1120         { 0x09, SONYPI_EVENT_FNKEY_RELEASED },
1121         { 0x8A, SONYPI_EVENT_FNKEY_F10 },
1122         { 0x0A, SONYPI_EVENT_FNKEY_RELEASED },
1123         { 0x8B, SONYPI_EVENT_FNKEY_F11 },
1124         { 0x0B, SONYPI_EVENT_FNKEY_RELEASED },
1125         { 0x8C, SONYPI_EVENT_FNKEY_F12 },
1126         { 0x0C, SONYPI_EVENT_FNKEY_RELEASED },
1127         { 0x9d, SONYPI_EVENT_ZOOM_PRESSED },
1128         { 0x1d, SONYPI_EVENT_ANYBUTTON_RELEASED },
1129         { 0x9f, SONYPI_EVENT_CD_EJECT_PRESSED },
1130         { 0x1f, SONYPI_EVENT_ANYBUTTON_RELEASED },
1131         { 0xa1, SONYPI_EVENT_MEDIA_PRESSED },
1132         { 0x21, SONYPI_EVENT_ANYBUTTON_RELEASED },
1133         { 0xa4, SONYPI_EVENT_CD_EJECT_PRESSED },
1134         { 0x24, SONYPI_EVENT_ANYBUTTON_RELEASED },
1135         { 0xa5, SONYPI_EVENT_VENDOR_PRESSED },
1136         { 0x25, SONYPI_EVENT_ANYBUTTON_RELEASED },
1137         { 0xa6, SONYPI_EVENT_HELP_PRESSED },
1138         { 0x26, SONYPI_EVENT_ANYBUTTON_RELEASED },
1139         { 0xa8, SONYPI_EVENT_FNKEY_1 },
1140         { 0x28, SONYPI_EVENT_ANYBUTTON_RELEASED },
1141         { 0, 0 },
1142 };
1143
1144 static struct sony_nc_event sony_127_events[] = {
1145         { 0x81, SONYPI_EVENT_MODEKEY_PRESSED },
1146         { 0x01, SONYPI_EVENT_ANYBUTTON_RELEASED },
1147         { 0x82, SONYPI_EVENT_PKEY_P1 },
1148         { 0x02, SONYPI_EVENT_ANYBUTTON_RELEASED },
1149         { 0x83, SONYPI_EVENT_PKEY_P2 },
1150         { 0x03, SONYPI_EVENT_ANYBUTTON_RELEASED },
1151         { 0x84, SONYPI_EVENT_PKEY_P3 },
1152         { 0x04, SONYPI_EVENT_ANYBUTTON_RELEASED },
1153         { 0x85, SONYPI_EVENT_PKEY_P4 },
1154         { 0x05, SONYPI_EVENT_ANYBUTTON_RELEASED },
1155         { 0x86, SONYPI_EVENT_PKEY_P5 },
1156         { 0x06, SONYPI_EVENT_ANYBUTTON_RELEASED },
1157         { 0x87, SONYPI_EVENT_SETTINGKEY_PRESSED },
1158         { 0x07, SONYPI_EVENT_ANYBUTTON_RELEASED },
1159         { 0, 0 },
1160 };
1161
1162 static int sony_nc_hotkeys_decode(u32 event, unsigned int handle)
1163 {
1164         int ret = -EINVAL;
1165         unsigned int result = 0;
1166         struct sony_nc_event *key_event;
1167
1168         if (sony_call_snc_handle(handle, 0x200, &result)) {
1169                 dprintk("Unable to decode event 0x%.2x 0x%.2x\n", handle,
1170                                 event);
1171                 return -EINVAL;
1172         }
1173
1174         result &= 0xFF;
1175
1176         if (handle == 0x0100)
1177                 key_event = sony_100_events;
1178         else
1179                 key_event = sony_127_events;
1180
1181         for (; key_event->data; key_event++) {
1182                 if (key_event->data == result) {
1183                         ret = key_event->event;
1184                         break;
1185                 }
1186         }
1187
1188         if (!key_event->data)
1189                 pr_info("Unknown hotkey 0x%.2x/0x%.2x (handle 0x%.2x)\n",
1190                                 event, result, handle);
1191
1192         return ret;
1193 }
1194
1195 /*
1196  * ACPI callbacks
1197  */
1198 enum event_types {
1199         HOTKEY = 1,
1200         KILLSWITCH,
1201         GFX_SWITCH
1202 };
1203 static void sony_nc_notify(struct acpi_device *device, u32 event)
1204 {
1205         u32 real_ev = event;
1206         u8 ev_type = 0;
1207         int ret;
1208
1209         dprintk("sony_nc_notify, event: 0x%.2x\n", event);
1210
1211         if (event >= 0x90) {
1212                 unsigned int result = 0;
1213                 unsigned int arg = 0;
1214                 unsigned int handle = 0;
1215                 unsigned int offset = event - 0x90;
1216
1217                 if (offset >= ARRAY_SIZE(handles->cap)) {
1218                         pr_err("Event 0x%x outside of capabilities list\n",
1219                                         event);
1220                         return;
1221                 }
1222                 handle = handles->cap[offset];
1223
1224                 /* list of handles known for generating events */
1225                 switch (handle) {
1226                 /* hotkey event */
1227                 case 0x0100:
1228                 case 0x0127:
1229                         ev_type = HOTKEY;
1230                         ret = sony_nc_hotkeys_decode(event, handle);
1231
1232                         if (ret > 0) {
1233                                 sony_laptop_report_input_event(ret);
1234                                 real_ev = ret;
1235                         }
1236
1237                         break;
1238
1239                 /* wlan switch */
1240                 case 0x0124:
1241                 case 0x0135:
1242                         /* events on this handle are reported when the
1243                          * switch changes position or for battery
1244                          * events. We'll notify both of them but only
1245                          * update the rfkill device status when the
1246                          * switch is moved.
1247                          */
1248                         ev_type = KILLSWITCH;
1249                         sony_call_snc_handle(handle, 0x0100, &result);
1250                         real_ev = result & 0x03;
1251
1252                         /* hw switch event */
1253                         if (real_ev == 1)
1254                                 sony_nc_rfkill_update();
1255
1256                         break;
1257
1258                 case 0x0128:
1259                 case 0x0146:
1260                         /* Hybrid GFX switching */
1261                         sony_call_snc_handle(handle, 0x0000, &result);
1262                         dprintk("GFX switch event received (reason: %s)\n",
1263                                         (result == 0x1) ? "switch change" :
1264                                         (result == 0x2) ? "output switch" :
1265                                         (result == 0x3) ? "output switch" :
1266                                         "");
1267
1268                         ev_type = GFX_SWITCH;
1269                         real_ev = __sony_nc_gfx_switch_status_get();
1270                         break;
1271
1272                 case 0x015B:
1273                         /* Hybrid GFX switching SVS151290S */
1274                         ev_type = GFX_SWITCH;
1275                         real_ev = __sony_nc_gfx_switch_status_get();
1276                         break;
1277                 default:
1278                         dprintk("Unknown event 0x%x for handle 0x%x\n",
1279                                         event, handle);
1280                         break;
1281                 }
1282
1283                 /* clear the event (and the event reason when present) */
1284                 arg = 1 << offset;
1285                 sony_nc_int_call(sony_nc_acpi_handle, "SN05", &arg, &result);
1286
1287         } else {
1288                 /* old style event */
1289                 ev_type = HOTKEY;
1290                 sony_laptop_report_input_event(real_ev);
1291         }
1292         acpi_bus_generate_netlink_event(sony_nc_acpi_device->pnp.device_class,
1293                         dev_name(&sony_nc_acpi_device->dev), ev_type, real_ev);
1294 }
1295
1296 static acpi_status sony_walk_callback(acpi_handle handle, u32 level,
1297                                       void *context, void **return_value)
1298 {
1299         struct acpi_device_info *info;
1300
1301         if (ACPI_SUCCESS(acpi_get_object_info(handle, &info))) {
1302                 pr_warn("method: name: %4.4s, args %X\n",
1303                         (char *)&info->name, info->param_count);
1304
1305                 kfree(info);
1306         }
1307
1308         return AE_OK;
1309 }
1310
1311 /*
1312  * ACPI device
1313  */
1314 static void sony_nc_function_setup(struct acpi_device *device,
1315                 struct platform_device *pf_device)
1316 {
1317         unsigned int i, result, bitmask, arg;
1318
1319         if (!handles)
1320                 return;
1321
1322         /* setup found handles here */
1323         for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
1324                 unsigned int handle = handles->cap[i];
1325
1326                 if (!handle)
1327                         continue;
1328
1329                 dprintk("setting up handle 0x%.4x\n", handle);
1330
1331                 switch (handle) {
1332                 case 0x0100:
1333                 case 0x0101:
1334                 case 0x0127:
1335                         /* setup hotkeys */
1336                         sony_call_snc_handle(handle, 0, &result);
1337                         break;
1338                 case 0x0102:
1339                         /* setup hotkeys */
1340                         sony_call_snc_handle(handle, 0x100, &result);
1341                         break;
1342                 case 0x0105:
1343                 case 0x0148:
1344                         /* touchpad enable/disable */
1345                         result = sony_nc_touchpad_setup(pf_device, handle);
1346                         if (result)
1347                                 pr_err("couldn't set up touchpad control function (%d)\n",
1348                                                 result);
1349                         break;
1350                 case 0x0115:
1351                 case 0x0136:
1352                 case 0x013f:
1353                         result = sony_nc_battery_care_setup(pf_device, handle);
1354                         if (result)
1355                                 pr_err("couldn't set up battery care function (%d)\n",
1356                                                 result);
1357                         break;
1358                 case 0x0119:
1359                 case 0x015D:
1360                         result = sony_nc_lid_resume_setup(pf_device, handle);
1361                         if (result)
1362                                 pr_err("couldn't set up lid resume function (%d)\n",
1363                                                 result);
1364                         break;
1365                 case 0x0122:
1366                         result = sony_nc_thermal_setup(pf_device);
1367                         if (result)
1368                                 pr_err("couldn't set up thermal profile function (%d)\n",
1369                                                 result);
1370                         break;
1371                 case 0x0128:
1372                 case 0x0146:
1373                 case 0x015B:
1374                         result = sony_nc_gfx_switch_setup(pf_device, handle);
1375                         if (result)
1376                                 pr_err("couldn't set up GFX Switch status (%d)\n",
1377                                                 result);
1378                         break;
1379                 case 0x0131:
1380                         result = sony_nc_highspeed_charging_setup(pf_device);
1381                         if (result)
1382                                 pr_err("couldn't set up high speed charging function (%d)\n",
1383                                        result);
1384                         break;
1385                 case 0x0124:
1386                 case 0x0135:
1387                         result = sony_nc_rfkill_setup(device, handle);
1388                         if (result)
1389                                 pr_err("couldn't set up rfkill support (%d)\n",
1390                                                 result);
1391                         break;
1392                 case 0x0137:
1393                 case 0x0143:
1394                 case 0x014b:
1395                 case 0x014c:
1396                 case 0x0153:
1397                 case 0x0163:
1398                         result = sony_nc_kbd_backlight_setup(pf_device, handle);
1399                         if (result)
1400                                 pr_err("couldn't set up keyboard backlight function (%d)\n",
1401                                                 result);
1402                         break;
1403                 case 0x0121:
1404                         result = sony_nc_lowbatt_setup(pf_device);
1405                         if (result)
1406                                 pr_err("couldn't set up low battery function (%d)\n",
1407                                        result);
1408                         break;
1409                 case 0x0149:
1410                         result = sony_nc_fanspeed_setup(pf_device);
1411                         if (result)
1412                                 pr_err("couldn't set up fan speed function (%d)\n",
1413                                        result);
1414                         break;
1415                 case 0x0155:
1416                         result = sony_nc_usb_charge_setup(pf_device);
1417                         if (result)
1418                                 pr_err("couldn't set up USB charge support (%d)\n",
1419                                                 result);
1420                         break;
1421                 case 0x011D:
1422                         result = sony_nc_panelid_setup(pf_device);
1423                         if (result)
1424                                 pr_err("couldn't set up panel ID function (%d)\n",
1425                                        result);
1426                         break;
1427                 case 0x0168:
1428                         result = sony_nc_smart_conn_setup(pf_device);
1429                         if (result)
1430                                 pr_err("couldn't set up smart connect support (%d)\n",
1431                                                 result);
1432                         break;
1433                 default:
1434                         continue;
1435                 }
1436         }
1437
1438         /* Enable all events */
1439         arg = 0x10;
1440         if (!sony_nc_int_call(sony_nc_acpi_handle, "SN00", &arg, &bitmask))
1441                 sony_nc_int_call(sony_nc_acpi_handle, "SN02", &bitmask,
1442                                 &result);
1443 }
1444
1445 static void sony_nc_function_cleanup(struct platform_device *pd)
1446 {
1447         unsigned int i, result, bitmask, handle;
1448
1449         if (!handles)
1450                 return;
1451
1452         /* get enabled events and disable them */
1453         sony_nc_int_call(sony_nc_acpi_handle, "SN01", NULL, &bitmask);
1454         sony_nc_int_call(sony_nc_acpi_handle, "SN03", &bitmask, &result);
1455
1456         /* cleanup handles here */
1457         for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
1458
1459                 handle = handles->cap[i];
1460
1461                 if (!handle)
1462                         continue;
1463
1464                 switch (handle) {
1465                 case 0x0105:
1466                 case 0x0148:
1467                         sony_nc_touchpad_cleanup(pd);
1468                         break;
1469                 case 0x0115:
1470                 case 0x0136:
1471                 case 0x013f:
1472                         sony_nc_battery_care_cleanup(pd);
1473                         break;
1474                 case 0x0119:
1475                 case 0x015D:
1476                         sony_nc_lid_resume_cleanup(pd);
1477                         break;
1478                 case 0x0122:
1479                         sony_nc_thermal_cleanup(pd);
1480                         break;
1481                 case 0x0128:
1482                 case 0x0146:
1483                 case 0x015B:
1484                         sony_nc_gfx_switch_cleanup(pd);
1485                         break;
1486                 case 0x0131:
1487                         sony_nc_highspeed_charging_cleanup(pd);
1488                         break;
1489                 case 0x0124:
1490                 case 0x0135:
1491                         sony_nc_rfkill_cleanup();
1492                         break;
1493                 case 0x0137:
1494                 case 0x0143:
1495                 case 0x014b:
1496                 case 0x014c:
1497                 case 0x0153:
1498                 case 0x0163:
1499                         sony_nc_kbd_backlight_cleanup(pd, handle);
1500                         break;
1501                 case 0x0121:
1502                         sony_nc_lowbatt_cleanup(pd);
1503                         break;
1504                 case 0x0149:
1505                         sony_nc_fanspeed_cleanup(pd);
1506                         break;
1507                 case 0x0155:
1508                         sony_nc_usb_charge_cleanup(pd);
1509                         break;
1510                 case 0x011D:
1511                         sony_nc_panelid_cleanup(pd);
1512                         break;
1513                 case 0x0168:
1514                         sony_nc_smart_conn_cleanup(pd);
1515                         break;
1516                 default:
1517                         continue;
1518                 }
1519         }
1520
1521         /* finally cleanup the handles list */
1522         sony_nc_handles_cleanup(pd);
1523 }
1524
1525 #ifdef CONFIG_PM_SLEEP
1526 static void sony_nc_function_resume(void)
1527 {
1528         unsigned int i, result, bitmask, arg;
1529
1530         dprintk("Resuming SNC device\n");
1531
1532         for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
1533                 unsigned int handle = handles->cap[i];
1534
1535                 if (!handle)
1536                         continue;
1537
1538                 switch (handle) {
1539                 case 0x0100:
1540                 case 0x0101:
1541                 case 0x0127:
1542                         /* re-enable hotkeys */
1543                         sony_call_snc_handle(handle, 0, &result);
1544                         break;
1545                 case 0x0102:
1546                         /* re-enable hotkeys */
1547                         sony_call_snc_handle(handle, 0x100, &result);
1548                         break;
1549                 case 0x0122:
1550                         sony_nc_thermal_resume();
1551                         break;
1552                 case 0x0124:
1553                 case 0x0135:
1554                         sony_nc_rfkill_update();
1555                         break;
1556                 default:
1557                         continue;
1558                 }
1559         }
1560
1561         /* Enable all events */
1562         arg = 0x10;
1563         if (!sony_nc_int_call(sony_nc_acpi_handle, "SN00", &arg, &bitmask))
1564                 sony_nc_int_call(sony_nc_acpi_handle, "SN02", &bitmask,
1565                                 &result);
1566 }
1567
1568 static int sony_nc_resume(struct device *dev)
1569 {
1570         struct sony_nc_value *item;
1571
1572         for (item = sony_nc_values; item->name; item++) {
1573                 int ret;
1574
1575                 if (!item->valid)
1576                         continue;
1577                 ret = sony_nc_int_call(sony_nc_acpi_handle, *item->acpiset,
1578                                        &item->value, NULL);
1579                 if (ret < 0) {
1580                         pr_err("%s: %d\n", __func__, ret);
1581                         break;
1582                 }
1583         }
1584
1585         if (acpi_has_method(sony_nc_acpi_handle, "ECON")) {
1586                 int arg = 1;
1587                 if (sony_nc_int_call(sony_nc_acpi_handle, "ECON", &arg, NULL))
1588                         dprintk("ECON Method failed\n");
1589         }
1590
1591         if (acpi_has_method(sony_nc_acpi_handle, "SN00"))
1592                 sony_nc_function_resume();
1593
1594         return 0;
1595 }
1596 #endif
1597
1598 static SIMPLE_DEV_PM_OPS(sony_nc_pm, NULL, sony_nc_resume);
1599
1600 static void sony_nc_rfkill_cleanup(void)
1601 {
1602         int i;
1603
1604         for (i = 0; i < N_SONY_RFKILL; i++) {
1605                 if (sony_rfkill_devices[i]) {
1606                         rfkill_unregister(sony_rfkill_devices[i]);
1607                         rfkill_destroy(sony_rfkill_devices[i]);
1608                 }
1609         }
1610 }
1611
1612 static int sony_nc_rfkill_set(void *data, bool blocked)
1613 {
1614         int result;
1615         int argument = sony_rfkill_address[(long) data] + 0x100;
1616
1617         if (!blocked)
1618                 argument |= 0x070000;
1619
1620         return sony_call_snc_handle(sony_rfkill_handle, argument, &result);
1621 }
1622
1623 static const struct rfkill_ops sony_rfkill_ops = {
1624         .set_block = sony_nc_rfkill_set,
1625 };
1626
1627 static int sony_nc_setup_rfkill(struct acpi_device *device,
1628                                 enum sony_nc_rfkill nc_type)
1629 {
1630         int err;
1631         struct rfkill *rfk;
1632         enum rfkill_type type;
1633         const char *name;
1634         int result;
1635         bool hwblock, swblock;
1636
1637         switch (nc_type) {
1638         case SONY_WIFI:
1639                 type = RFKILL_TYPE_WLAN;
1640                 name = "sony-wifi";
1641                 break;
1642         case SONY_BLUETOOTH:
1643                 type = RFKILL_TYPE_BLUETOOTH;
1644                 name = "sony-bluetooth";
1645                 break;
1646         case SONY_WWAN:
1647                 type = RFKILL_TYPE_WWAN;
1648                 name = "sony-wwan";
1649                 break;
1650         case SONY_WIMAX:
1651                 type = RFKILL_TYPE_WIMAX;
1652                 name = "sony-wimax";
1653                 break;
1654         default:
1655                 return -EINVAL;
1656         }
1657
1658         rfk = rfkill_alloc(name, &device->dev, type,
1659                            &sony_rfkill_ops, (void *)nc_type);
1660         if (!rfk)
1661                 return -ENOMEM;
1662
1663         err = sony_call_snc_handle(sony_rfkill_handle, 0x200, &result);
1664         if (err < 0) {
1665                 rfkill_destroy(rfk);
1666                 return err;
1667         }
1668         hwblock = !(result & 0x1);
1669
1670         err = sony_call_snc_handle(sony_rfkill_handle,
1671                                    sony_rfkill_address[nc_type],
1672                                    &result);
1673         if (err < 0) {
1674                 rfkill_destroy(rfk);
1675                 return err;
1676         }
1677         swblock = !(result & 0x2);
1678
1679         rfkill_init_sw_state(rfk, swblock);
1680         rfkill_set_hw_state(rfk, hwblock);
1681
1682         err = rfkill_register(rfk);
1683         if (err) {
1684                 rfkill_destroy(rfk);
1685                 return err;
1686         }
1687         sony_rfkill_devices[nc_type] = rfk;
1688         return err;
1689 }
1690
1691 static void sony_nc_rfkill_update(void)
1692 {
1693         enum sony_nc_rfkill i;
1694         int result;
1695         bool hwblock;
1696
1697         sony_call_snc_handle(sony_rfkill_handle, 0x200, &result);
1698         hwblock = !(result & 0x1);
1699
1700         for (i = 0; i < N_SONY_RFKILL; i++) {
1701                 int argument = sony_rfkill_address[i];
1702
1703                 if (!sony_rfkill_devices[i])
1704                         continue;
1705
1706                 if (hwblock) {
1707                         if (rfkill_set_hw_state(sony_rfkill_devices[i], true)) {
1708                                 /* we already know we're blocked */
1709                         }
1710                         continue;
1711                 }
1712
1713                 sony_call_snc_handle(sony_rfkill_handle, argument, &result);
1714                 rfkill_set_states(sony_rfkill_devices[i],
1715                                   !(result & 0x2), false);
1716         }
1717 }
1718
1719 static int sony_nc_rfkill_setup(struct acpi_device *device,
1720                 unsigned int handle)
1721 {
1722         u64 offset;
1723         int i;
1724         unsigned char buffer[32] = { 0 };
1725
1726         offset = sony_find_snc_handle(handle);
1727         sony_rfkill_handle = handle;
1728
1729         i = sony_nc_buffer_call(sony_nc_acpi_handle, "SN06", &offset, buffer,
1730                         32);
1731         if (i < 0)
1732                 return i;
1733
1734         /* The buffer is filled with magic numbers describing the devices
1735          * available, 0xff terminates the enumeration.
1736          * Known codes:
1737          *      0x00 WLAN
1738          *      0x10 BLUETOOTH
1739          *      0x20 WWAN GPRS-EDGE
1740          *      0x21 WWAN HSDPA
1741          *      0x22 WWAN EV-DO
1742          *      0x23 WWAN GPS
1743          *      0x25 Gobi WWAN no GPS
1744          *      0x26 Gobi WWAN + GPS
1745          *      0x28 Gobi WWAN no GPS
1746          *      0x29 Gobi WWAN + GPS
1747          *      0x30 WIMAX
1748          *      0x50 Gobi WWAN no GPS
1749          *      0x51 Gobi WWAN + GPS
1750          *      0x70 no SIM card slot
1751          *      0x71 SIM card slot
1752          */
1753         for (i = 0; i < ARRAY_SIZE(buffer); i++) {
1754
1755                 if (buffer[i] == 0xff)
1756                         break;
1757
1758                 dprintk("Radio devices, found 0x%.2x\n", buffer[i]);
1759
1760                 if (buffer[i] == 0 && !sony_rfkill_devices[SONY_WIFI])
1761                         sony_nc_setup_rfkill(device, SONY_WIFI);
1762
1763                 if (buffer[i] == 0x10 && !sony_rfkill_devices[SONY_BLUETOOTH])
1764                         sony_nc_setup_rfkill(device, SONY_BLUETOOTH);
1765
1766                 if (((0xf0 & buffer[i]) == 0x20 ||
1767                                         (0xf0 & buffer[i]) == 0x50) &&
1768                                 !sony_rfkill_devices[SONY_WWAN])
1769                         sony_nc_setup_rfkill(device, SONY_WWAN);
1770
1771                 if (buffer[i] == 0x30 && !sony_rfkill_devices[SONY_WIMAX])
1772                         sony_nc_setup_rfkill(device, SONY_WIMAX);
1773         }
1774         return 0;
1775 }
1776
1777 /* Keyboard backlight feature */
1778 struct kbd_backlight {
1779         unsigned int handle;
1780         unsigned int base;
1781         unsigned int mode;
1782         unsigned int timeout;
1783         unsigned int has_timeout;
1784         struct device_attribute mode_attr;
1785         struct device_attribute timeout_attr;
1786 };
1787
1788 static struct kbd_backlight *kbdbl_ctl;
1789
1790 static ssize_t __sony_nc_kbd_backlight_mode_set(u8 value)
1791 {
1792         int result;
1793
1794         if (value > 2)
1795                 return -EINVAL;
1796
1797         if (sony_call_snc_handle(kbdbl_ctl->handle,
1798                                 (value << 0x10) | (kbdbl_ctl->base), &result))
1799                 return -EIO;
1800
1801         /* Try to turn the light on/off immediately */
1802         if (value != 1)
1803                 sony_call_snc_handle(kbdbl_ctl->handle,
1804                                 (value << 0x0f) | (kbdbl_ctl->base + 0x100),
1805                                 &result);
1806
1807         kbdbl_ctl->mode = value;
1808
1809         return 0;
1810 }
1811
1812 static ssize_t sony_nc_kbd_backlight_mode_store(struct device *dev,
1813                 struct device_attribute *attr,
1814                 const char *buffer, size_t count)
1815 {
1816         int ret = 0;
1817         unsigned long value;
1818
1819         if (count > 31)
1820                 return -EINVAL;
1821
1822         if (kstrtoul(buffer, 10, &value))
1823                 return -EINVAL;
1824
1825         ret = __sony_nc_kbd_backlight_mode_set(value);
1826         if (ret < 0)
1827                 return ret;
1828
1829         return count;
1830 }
1831
1832 static ssize_t sony_nc_kbd_backlight_mode_show(struct device *dev,
1833                 struct device_attribute *attr, char *buffer)
1834 {
1835         ssize_t count = 0;
1836         count = snprintf(buffer, PAGE_SIZE, "%d\n", kbdbl_ctl->mode);
1837         return count;
1838 }
1839
1840 static int __sony_nc_kbd_backlight_timeout_set(u8 value)
1841 {
1842         int result;
1843
1844         if (value > 3)
1845                 return -EINVAL;
1846
1847         if (sony_call_snc_handle(kbdbl_ctl->handle, (value << 0x10) |
1848                                 (kbdbl_ctl->base + 0x200), &result))
1849                 return -EIO;
1850
1851         kbdbl_ctl->timeout = value;
1852
1853         return 0;
1854 }
1855
1856 static ssize_t sony_nc_kbd_backlight_timeout_store(struct device *dev,
1857                 struct device_attribute *attr,
1858                 const char *buffer, size_t count)
1859 {
1860         int ret = 0;
1861         unsigned long value;
1862
1863         if (count > 31)
1864                 return -EINVAL;
1865
1866         if (kstrtoul(buffer, 10, &value))
1867                 return -EINVAL;
1868
1869         ret = __sony_nc_kbd_backlight_timeout_set(value);
1870         if (ret < 0)
1871                 return ret;
1872
1873         return count;
1874 }
1875
1876 static ssize_t sony_nc_kbd_backlight_timeout_show(struct device *dev,
1877                 struct device_attribute *attr, char *buffer)
1878 {
1879         ssize_t count = 0;
1880         count = snprintf(buffer, PAGE_SIZE, "%d\n", kbdbl_ctl->timeout);
1881         return count;
1882 }
1883
1884 static int sony_nc_kbd_backlight_setup(struct platform_device *pd,
1885                 unsigned int handle)
1886 {
1887         int result;
1888         int probe_base = 0;
1889         int ctl_base = 0;
1890         int ret = 0;
1891
1892         if (kbdbl_ctl) {
1893                 pr_warn("handle 0x%.4x: keyboard backlight setup already done for 0x%.4x\n",
1894                                 handle, kbdbl_ctl->handle);
1895                 return -EBUSY;
1896         }
1897
1898         /* verify the kbd backlight presence, some of these handles are not used
1899          * for keyboard backlight only
1900          */
1901         switch (handle) {
1902         case 0x0153:
1903                 probe_base = 0x0;
1904                 ctl_base = 0x0;
1905                 break;
1906         case 0x0137:
1907                 probe_base = 0x0B00;
1908                 ctl_base = 0x0C00;
1909                 break;
1910         default:
1911                 probe_base = 0x0100;
1912                 ctl_base = 0x4000;
1913                 break;
1914         }
1915
1916         /*
1917          * Only probe if there is a separate probe_base, otherwise the probe call
1918          * is equivalent to __sony_nc_kbd_backlight_mode_set(0), resulting in
1919          * the keyboard backlight being turned off.
1920          */
1921         if (probe_base) {
1922                 ret = sony_call_snc_handle(handle, probe_base, &result);
1923                 if (ret)
1924                         return ret;
1925
1926                 if ((handle == 0x0137 && !(result & 0x02)) ||
1927                                 !(result & 0x01)) {
1928                         dprintk("no backlight keyboard found\n");
1929                         return 0;
1930                 }
1931         }
1932
1933         kbdbl_ctl = kzalloc(sizeof(*kbdbl_ctl), GFP_KERNEL);
1934         if (!kbdbl_ctl)
1935                 return -ENOMEM;
1936
1937         kbdbl_ctl->mode = kbd_backlight;
1938         kbdbl_ctl->timeout = kbd_backlight_timeout;
1939         kbdbl_ctl->handle = handle;
1940         kbdbl_ctl->base = ctl_base;
1941         /* Some models do not allow timeout control */
1942         kbdbl_ctl->has_timeout = handle != 0x0153;
1943
1944         sysfs_attr_init(&kbdbl_ctl->mode_attr.attr);
1945         kbdbl_ctl->mode_attr.attr.name = "kbd_backlight";
1946         kbdbl_ctl->mode_attr.attr.mode = S_IRUGO | S_IWUSR;
1947         kbdbl_ctl->mode_attr.show = sony_nc_kbd_backlight_mode_show;
1948         kbdbl_ctl->mode_attr.store = sony_nc_kbd_backlight_mode_store;
1949
1950         ret = device_create_file(&pd->dev, &kbdbl_ctl->mode_attr);
1951         if (ret)
1952                 goto outkzalloc;
1953
1954         __sony_nc_kbd_backlight_mode_set(kbdbl_ctl->mode);
1955
1956         if (kbdbl_ctl->has_timeout) {
1957                 sysfs_attr_init(&kbdbl_ctl->timeout_attr.attr);
1958                 kbdbl_ctl->timeout_attr.attr.name = "kbd_backlight_timeout";
1959                 kbdbl_ctl->timeout_attr.attr.mode = S_IRUGO | S_IWUSR;
1960                 kbdbl_ctl->timeout_attr.show =
1961                         sony_nc_kbd_backlight_timeout_show;
1962                 kbdbl_ctl->timeout_attr.store =
1963                         sony_nc_kbd_backlight_timeout_store;
1964
1965                 ret = device_create_file(&pd->dev, &kbdbl_ctl->timeout_attr);
1966                 if (ret)
1967                         goto outmode;
1968
1969                 __sony_nc_kbd_backlight_timeout_set(kbdbl_ctl->timeout);
1970         }
1971
1972
1973         return 0;
1974
1975 outmode:
1976         device_remove_file(&pd->dev, &kbdbl_ctl->mode_attr);
1977 outkzalloc:
1978         kfree(kbdbl_ctl);
1979         kbdbl_ctl = NULL;
1980         return ret;
1981 }
1982
1983 static void sony_nc_kbd_backlight_cleanup(struct platform_device *pd,
1984                 unsigned int handle)
1985 {
1986         if (kbdbl_ctl && handle == kbdbl_ctl->handle) {
1987                 device_remove_file(&pd->dev, &kbdbl_ctl->mode_attr);
1988                 if (kbdbl_ctl->has_timeout)
1989                         device_remove_file(&pd->dev, &kbdbl_ctl->timeout_attr);
1990                 kfree(kbdbl_ctl);
1991                 kbdbl_ctl = NULL;
1992         }
1993 }
1994
1995 struct battery_care_control {
1996         struct device_attribute attrs[2];
1997         unsigned int handle;
1998 };
1999 static struct battery_care_control *bcare_ctl;
2000
2001 static ssize_t sony_nc_battery_care_limit_store(struct device *dev,
2002                 struct device_attribute *attr,
2003                 const char *buffer, size_t count)
2004 {
2005         unsigned int result, cmd;
2006         unsigned long value;
2007
2008         if (count > 31)
2009                 return -EINVAL;
2010
2011         if (kstrtoul(buffer, 10, &value))
2012                 return -EINVAL;
2013
2014         /*  limit values (2 bits):
2015          *  00 - none
2016          *  01 - 80%
2017          *  10 - 50%
2018          *  11 - 100%
2019          *
2020          *  bit 0: 0 disable BCL, 1 enable BCL
2021          *  bit 1: 1 tell to store the battery limit (see bits 6,7) too
2022          *  bits 2,3: reserved
2023          *  bits 4,5: store the limit into the EC
2024          *  bits 6,7: store the limit into the battery
2025          */
2026         cmd = 0;
2027
2028         if (value > 0) {
2029                 if (value <= 50)
2030                         cmd = 0x20;
2031
2032                 else if (value <= 80)
2033                         cmd = 0x10;
2034
2035                 else if (value <= 100)
2036                         cmd = 0x30;
2037
2038                 else
2039                         return -EINVAL;
2040
2041                 /*
2042                  * handle 0x0115 should allow storing on battery too;
2043                  * handle 0x0136 same as 0x0115 + health status;
2044                  * handle 0x013f, same as 0x0136 but no storing on the battery
2045                  */
2046                 if (bcare_ctl->handle != 0x013f)
2047                         cmd = cmd | (cmd << 2);
2048
2049                 cmd = (cmd | 0x1) << 0x10;
2050         }
2051
2052         if (sony_call_snc_handle(bcare_ctl->handle, cmd | 0x0100, &result))
2053                 return -EIO;
2054
2055         return count;
2056 }
2057
2058 static ssize_t sony_nc_battery_care_limit_show(struct device *dev,
2059                 struct device_attribute *attr, char *buffer)
2060 {
2061         unsigned int result, status;
2062
2063         if (sony_call_snc_handle(bcare_ctl->handle, 0x0000, &result))
2064                 return -EIO;
2065
2066         status = (result & 0x01) ? ((result & 0x30) >> 0x04) : 0;
2067         switch (status) {
2068         case 1:
2069                 status = 80;
2070                 break;
2071         case 2:
2072                 status = 50;
2073                 break;
2074         case 3:
2075                 status = 100;
2076                 break;
2077         default:
2078                 status = 0;
2079                 break;
2080         }
2081
2082         return snprintf(buffer, PAGE_SIZE, "%d\n", status);
2083 }
2084
2085 static ssize_t sony_nc_battery_care_health_show(struct device *dev,
2086                 struct device_attribute *attr, char *buffer)
2087 {
2088         ssize_t count = 0;
2089         unsigned int health;
2090
2091         if (sony_call_snc_handle(bcare_ctl->handle, 0x0200, &health))
2092                 return -EIO;
2093
2094         count = snprintf(buffer, PAGE_SIZE, "%d\n", health & 0xff);
2095
2096         return count;
2097 }
2098
2099 static int sony_nc_battery_care_setup(struct platform_device *pd,
2100                 unsigned int handle)
2101 {
2102         int ret = 0;
2103
2104         bcare_ctl = kzalloc(sizeof(struct battery_care_control), GFP_KERNEL);
2105         if (!bcare_ctl)
2106                 return -ENOMEM;
2107
2108         bcare_ctl->handle = handle;
2109
2110         sysfs_attr_init(&bcare_ctl->attrs[0].attr);
2111         bcare_ctl->attrs[0].attr.name = "battery_care_limiter";
2112         bcare_ctl->attrs[0].attr.mode = S_IRUGO | S_IWUSR;
2113         bcare_ctl->attrs[0].show = sony_nc_battery_care_limit_show;
2114         bcare_ctl->attrs[0].store = sony_nc_battery_care_limit_store;
2115
2116         ret = device_create_file(&pd->dev, &bcare_ctl->attrs[0]);
2117         if (ret)
2118                 goto outkzalloc;
2119
2120         /* 0x0115 is for models with no health reporting capability */
2121         if (handle == 0x0115)
2122                 return 0;
2123
2124         sysfs_attr_init(&bcare_ctl->attrs[1].attr);
2125         bcare_ctl->attrs[1].attr.name = "battery_care_health";
2126         bcare_ctl->attrs[1].attr.mode = S_IRUGO;
2127         bcare_ctl->attrs[1].show = sony_nc_battery_care_health_show;
2128
2129         ret = device_create_file(&pd->dev, &bcare_ctl->attrs[1]);
2130         if (ret)
2131                 goto outlimiter;
2132
2133         return 0;
2134
2135 outlimiter:
2136         device_remove_file(&pd->dev, &bcare_ctl->attrs[0]);
2137
2138 outkzalloc:
2139         kfree(bcare_ctl);
2140         bcare_ctl = NULL;
2141
2142         return ret;
2143 }
2144
2145 static void sony_nc_battery_care_cleanup(struct platform_device *pd)
2146 {
2147         if (bcare_ctl) {
2148                 device_remove_file(&pd->dev, &bcare_ctl->attrs[0]);
2149                 if (bcare_ctl->handle != 0x0115)
2150                         device_remove_file(&pd->dev, &bcare_ctl->attrs[1]);
2151
2152                 kfree(bcare_ctl);
2153                 bcare_ctl = NULL;
2154         }
2155 }
2156
2157 struct snc_thermal_ctrl {
2158         unsigned int mode;
2159         unsigned int profiles;
2160         struct device_attribute mode_attr;
2161         struct device_attribute profiles_attr;
2162 };
2163 static struct snc_thermal_ctrl *th_handle;
2164
2165 #define THM_PROFILE_MAX 3
2166 static const char * const snc_thermal_profiles[] = {
2167         "balanced",
2168         "silent",
2169         "performance"
2170 };
2171
2172 static int sony_nc_thermal_mode_set(unsigned short mode)
2173 {
2174         unsigned int result;
2175
2176         /* the thermal profile seems to be a two bit bitmask:
2177          * lsb -> silent
2178          * msb -> performance
2179          * no bit set is the normal operation and is always valid
2180          * Some vaio models only have "balanced" and "performance"
2181          */
2182         if ((mode && !(th_handle->profiles & mode)) || mode >= THM_PROFILE_MAX)
2183                 return -EINVAL;
2184
2185         if (sony_call_snc_handle(0x0122, mode << 0x10 | 0x0200, &result))
2186                 return -EIO;
2187
2188         th_handle->mode = mode;
2189
2190         return 0;
2191 }
2192
2193 static int sony_nc_thermal_mode_get(void)
2194 {
2195         unsigned int result;
2196
2197         if (sony_call_snc_handle(0x0122, 0x0100, &result))
2198                 return -EIO;
2199
2200         return result & 0xff;
2201 }
2202
2203 static ssize_t sony_nc_thermal_profiles_show(struct device *dev,
2204                 struct device_attribute *attr, char *buffer)
2205 {
2206         short cnt;
2207         size_t idx = 0;
2208
2209         for (cnt = 0; cnt < THM_PROFILE_MAX; cnt++) {
2210                 if (!cnt || (th_handle->profiles & cnt))
2211                         idx += snprintf(buffer + idx, PAGE_SIZE - idx, "%s ",
2212                                         snc_thermal_profiles[cnt]);
2213         }
2214         idx += snprintf(buffer + idx, PAGE_SIZE - idx, "\n");
2215
2216         return idx;
2217 }
2218
2219 static ssize_t sony_nc_thermal_mode_store(struct device *dev,
2220                 struct device_attribute *attr,
2221                 const char *buffer, size_t count)
2222 {
2223         unsigned short cmd;
2224         size_t len = count;
2225
2226         if (count == 0)
2227                 return -EINVAL;
2228
2229         /* skip the newline if present */
2230         if (buffer[len - 1] == '\n')
2231                 len--;
2232
2233         for (cmd = 0; cmd < THM_PROFILE_MAX; cmd++)
2234                 if (strncmp(buffer, snc_thermal_profiles[cmd], len) == 0)
2235                         break;
2236
2237         if (sony_nc_thermal_mode_set(cmd))
2238                 return -EIO;
2239
2240         return count;
2241 }
2242
2243 static ssize_t sony_nc_thermal_mode_show(struct device *dev,
2244                 struct device_attribute *attr, char *buffer)
2245 {
2246         ssize_t count = 0;
2247         int mode = sony_nc_thermal_mode_get();
2248
2249         if (mode < 0)
2250                 return mode;
2251
2252         count = snprintf(buffer, PAGE_SIZE, "%s\n", snc_thermal_profiles[mode]);
2253
2254         return count;
2255 }
2256
2257 static int sony_nc_thermal_setup(struct platform_device *pd)
2258 {
2259         int ret = 0;
2260         th_handle = kzalloc(sizeof(struct snc_thermal_ctrl), GFP_KERNEL);
2261         if (!th_handle)
2262                 return -ENOMEM;
2263
2264         ret = sony_call_snc_handle(0x0122, 0x0000, &th_handle->profiles);
2265         if (ret) {
2266                 pr_warn("couldn't to read the thermal profiles\n");
2267                 goto outkzalloc;
2268         }
2269
2270         ret = sony_nc_thermal_mode_get();
2271         if (ret < 0) {
2272                 pr_warn("couldn't to read the current thermal profile");
2273                 goto outkzalloc;
2274         }
2275         th_handle->mode = ret;
2276
2277         sysfs_attr_init(&th_handle->profiles_attr.attr);
2278         th_handle->profiles_attr.attr.name = "thermal_profiles";
2279         th_handle->profiles_attr.attr.mode = S_IRUGO;
2280         th_handle->profiles_attr.show = sony_nc_thermal_profiles_show;
2281
2282         sysfs_attr_init(&th_handle->mode_attr.attr);
2283         th_handle->mode_attr.attr.name = "thermal_control";
2284         th_handle->mode_attr.attr.mode = S_IRUGO | S_IWUSR;
2285         th_handle->mode_attr.show = sony_nc_thermal_mode_show;
2286         th_handle->mode_attr.store = sony_nc_thermal_mode_store;
2287
2288         ret = device_create_file(&pd->dev, &th_handle->profiles_attr);
2289         if (ret)
2290                 goto outkzalloc;
2291
2292         ret = device_create_file(&pd->dev, &th_handle->mode_attr);
2293         if (ret)
2294                 goto outprofiles;
2295
2296         return 0;
2297
2298 outprofiles:
2299         device_remove_file(&pd->dev, &th_handle->profiles_attr);
2300 outkzalloc:
2301         kfree(th_handle);
2302         th_handle = NULL;
2303         return ret;
2304 }
2305
2306 static void sony_nc_thermal_cleanup(struct platform_device *pd)
2307 {
2308         if (th_handle) {
2309                 device_remove_file(&pd->dev, &th_handle->profiles_attr);
2310                 device_remove_file(&pd->dev, &th_handle->mode_attr);
2311                 kfree(th_handle);
2312                 th_handle = NULL;
2313         }
2314 }
2315
2316 #ifdef CONFIG_PM_SLEEP
2317 static void sony_nc_thermal_resume(void)
2318 {
2319         unsigned int status = sony_nc_thermal_mode_get();
2320
2321         if (status != th_handle->mode)
2322                 sony_nc_thermal_mode_set(th_handle->mode);
2323 }
2324 #endif
2325
2326 /* resume on LID open */
2327 #define LID_RESUME_S5   0
2328 #define LID_RESUME_S4   1
2329 #define LID_RESUME_S3   2
2330 #define LID_RESUME_MAX  3
2331 struct snc_lid_resume_control {
2332         struct device_attribute attrs[LID_RESUME_MAX];
2333         unsigned int status;
2334         int handle;
2335 };
2336 static struct snc_lid_resume_control *lid_ctl;
2337
2338 static ssize_t sony_nc_lid_resume_store(struct device *dev,
2339                                         struct device_attribute *attr,
2340                                         const char *buffer, size_t count)
2341 {
2342         unsigned int result;
2343         unsigned long value;
2344         unsigned int pos = LID_RESUME_S5;
2345         if (count > 31)
2346                 return -EINVAL;
2347
2348         if (kstrtoul(buffer, 10, &value) || value > 1)
2349                 return -EINVAL;
2350
2351         /* the value we have to write to SNC is a bitmask:
2352          * +--------------+
2353          * | S3 | S4 | S5 |
2354          * +--------------+
2355          *   2    1    0
2356          */
2357         while (pos < LID_RESUME_MAX) {
2358                 if (&lid_ctl->attrs[pos].attr == &attr->attr)
2359                         break;
2360                 pos++;
2361         }
2362         if (pos == LID_RESUME_MAX)
2363                 return -EINVAL;
2364
2365         if (value)
2366                 value = lid_ctl->status | (1 << pos);
2367         else
2368                 value = lid_ctl->status & ~(1 << pos);
2369
2370         if (sony_call_snc_handle(lid_ctl->handle, value << 0x10 | 0x0100,
2371                                 &result))
2372                 return -EIO;
2373
2374         lid_ctl->status = value;
2375
2376         return count;
2377 }
2378
2379 static ssize_t sony_nc_lid_resume_show(struct device *dev,
2380                                         struct device_attribute *attr,
2381                                         char *buffer)
2382 {
2383         unsigned int pos = LID_RESUME_S5;
2384
2385         while (pos < LID_RESUME_MAX) {
2386                 if (&lid_ctl->attrs[pos].attr == &attr->attr)
2387                         return snprintf(buffer, PAGE_SIZE, "%d\n",
2388                                         (lid_ctl->status >> pos) & 0x01);
2389                 pos++;
2390         }
2391         return -EINVAL;
2392 }
2393
2394 static int sony_nc_lid_resume_setup(struct platform_device *pd,
2395                                         unsigned int handle)
2396 {
2397         unsigned int result;
2398         int i;
2399
2400         if (sony_call_snc_handle(handle, 0x0000, &result))
2401                 return -EIO;
2402
2403         lid_ctl = kzalloc(sizeof(struct snc_lid_resume_control), GFP_KERNEL);
2404         if (!lid_ctl)
2405                 return -ENOMEM;
2406
2407         lid_ctl->status = result & 0x7;
2408         lid_ctl->handle = handle;
2409
2410         sysfs_attr_init(&lid_ctl->attrs[0].attr);
2411         lid_ctl->attrs[LID_RESUME_S5].attr.name = "lid_resume_S5";
2412         lid_ctl->attrs[LID_RESUME_S5].attr.mode = S_IRUGO | S_IWUSR;
2413         lid_ctl->attrs[LID_RESUME_S5].show = sony_nc_lid_resume_show;
2414         lid_ctl->attrs[LID_RESUME_S5].store = sony_nc_lid_resume_store;
2415
2416         if (handle == 0x0119) {
2417                 sysfs_attr_init(&lid_ctl->attrs[1].attr);
2418                 lid_ctl->attrs[LID_RESUME_S4].attr.name = "lid_resume_S4";
2419                 lid_ctl->attrs[LID_RESUME_S4].attr.mode = S_IRUGO | S_IWUSR;
2420                 lid_ctl->attrs[LID_RESUME_S4].show = sony_nc_lid_resume_show;
2421                 lid_ctl->attrs[LID_RESUME_S4].store = sony_nc_lid_resume_store;
2422
2423                 sysfs_attr_init(&lid_ctl->attrs[2].attr);
2424                 lid_ctl->attrs[LID_RESUME_S3].attr.name = "lid_resume_S3";
2425                 lid_ctl->attrs[LID_RESUME_S3].attr.mode = S_IRUGO | S_IWUSR;
2426                 lid_ctl->attrs[LID_RESUME_S3].show = sony_nc_lid_resume_show;
2427                 lid_ctl->attrs[LID_RESUME_S3].store = sony_nc_lid_resume_store;
2428         }
2429         for (i = 0; i < LID_RESUME_MAX &&
2430                         lid_ctl->attrs[i].attr.name; i++) {
2431                 result = device_create_file(&pd->dev, &lid_ctl->attrs[i]);
2432                 if (result)
2433                         goto liderror;
2434         }
2435
2436         return 0;
2437
2438 liderror:
2439         for (i--; i >= 0; i--)
2440                 device_remove_file(&pd->dev, &lid_ctl->attrs[i]);
2441
2442         kfree(lid_ctl);
2443         lid_ctl = NULL;
2444
2445         return result;
2446 }
2447
2448 static void sony_nc_lid_resume_cleanup(struct platform_device *pd)
2449 {
2450         int i;
2451
2452         if (lid_ctl) {
2453                 for (i = 0; i < LID_RESUME_MAX; i++) {
2454                         if (!lid_ctl->attrs[i].attr.name)
2455                                 break;
2456
2457                         device_remove_file(&pd->dev, &lid_ctl->attrs[i]);
2458                 }
2459
2460                 kfree(lid_ctl);
2461                 lid_ctl = NULL;
2462         }
2463 }
2464
2465 /* GFX Switch position */
2466 enum gfx_switch {
2467         SPEED,
2468         STAMINA,
2469         AUTO
2470 };
2471 struct snc_gfx_switch_control {
2472         struct device_attribute attr;
2473         unsigned int handle;
2474 };
2475 static struct snc_gfx_switch_control *gfxs_ctl;
2476
2477 /* returns 0 for speed, 1 for stamina */
2478 static int __sony_nc_gfx_switch_status_get(void)
2479 {
2480         unsigned int result;
2481
2482         if (sony_call_snc_handle(gfxs_ctl->handle,
2483                                 gfxs_ctl->handle == 0x015B ? 0x0000 : 0x0100,
2484                                 &result))
2485                 return -EIO;
2486
2487         switch (gfxs_ctl->handle) {
2488         case 0x0146:
2489                 /* 1: discrete GFX (speed)
2490                  * 0: integrated GFX (stamina)
2491                  */
2492                 return result & 0x1 ? SPEED : STAMINA;
2493                 break;
2494         case 0x015B:
2495                 /* 0: discrete GFX (speed)
2496                  * 1: integrated GFX (stamina)
2497                  */
2498                 return result & 0x1 ? STAMINA : SPEED;
2499                 break;
2500         case 0x0128:
2501                 /* it's a more elaborated bitmask, for now:
2502                  * 2: integrated GFX (stamina)
2503                  * 0: discrete GFX (speed)
2504                  */
2505                 dprintk("GFX Status: 0x%x\n", result);
2506                 return result & 0x80 ? AUTO :
2507                         result & 0x02 ? STAMINA : SPEED;
2508                 break;
2509         }
2510         return -EINVAL;
2511 }
2512
2513 static ssize_t sony_nc_gfx_switch_status_show(struct device *dev,
2514                                        struct device_attribute *attr,
2515                                        char *buffer)
2516 {
2517         int pos = __sony_nc_gfx_switch_status_get();
2518
2519         if (pos < 0)
2520                 return pos;
2521
2522         return snprintf(buffer, PAGE_SIZE, "%s\n",
2523                                         pos == SPEED ? "speed" :
2524                                         pos == STAMINA ? "stamina" :
2525                                         pos == AUTO ? "auto" : "unknown");
2526 }
2527
2528 static int sony_nc_gfx_switch_setup(struct platform_device *pd,
2529                 unsigned int handle)
2530 {
2531         unsigned int result;
2532
2533         gfxs_ctl = kzalloc(sizeof(struct snc_gfx_switch_control), GFP_KERNEL);
2534         if (!gfxs_ctl)
2535                 return -ENOMEM;
2536
2537         gfxs_ctl->handle = handle;
2538
2539         sysfs_attr_init(&gfxs_ctl->attr.attr);
2540         gfxs_ctl->attr.attr.name = "gfx_switch_status";
2541         gfxs_ctl->attr.attr.mode = S_IRUGO;
2542         gfxs_ctl->attr.show = sony_nc_gfx_switch_status_show;
2543
2544         result = device_create_file(&pd->dev, &gfxs_ctl->attr);
2545         if (result)
2546                 goto gfxerror;
2547
2548         return 0;
2549
2550 gfxerror:
2551         kfree(gfxs_ctl);
2552         gfxs_ctl = NULL;
2553
2554         return result;
2555 }
2556
2557 static void sony_nc_gfx_switch_cleanup(struct platform_device *pd)
2558 {
2559         if (gfxs_ctl) {
2560                 device_remove_file(&pd->dev, &gfxs_ctl->attr);
2561
2562                 kfree(gfxs_ctl);
2563                 gfxs_ctl = NULL;
2564         }
2565 }
2566
2567 /* High speed charging function */
2568 static struct device_attribute *hsc_handle;
2569
2570 static ssize_t sony_nc_highspeed_charging_store(struct device *dev,
2571                 struct device_attribute *attr,
2572                 const char *buffer, size_t count)
2573 {
2574         unsigned int result;
2575         unsigned long value;
2576
2577         if (count > 31)
2578                 return -EINVAL;
2579
2580         if (kstrtoul(buffer, 10, &value) || value > 1)
2581                 return -EINVAL;
2582
2583         if (sony_call_snc_handle(0x0131, value << 0x10 | 0x0200, &result))
2584                 return -EIO;
2585
2586         return count;
2587 }
2588
2589 static ssize_t sony_nc_highspeed_charging_show(struct device *dev,
2590                 struct device_attribute *attr, char *buffer)
2591 {
2592         unsigned int result;
2593
2594         if (sony_call_snc_handle(0x0131, 0x0100, &result))
2595                 return -EIO;
2596
2597         return snprintf(buffer, PAGE_SIZE, "%d\n", result & 0x01);
2598 }
2599
2600 static int sony_nc_highspeed_charging_setup(struct platform_device *pd)
2601 {
2602         unsigned int result;
2603
2604         if (sony_call_snc_handle(0x0131, 0x0000, &result) || !(result & 0x01)) {
2605                 /* some models advertise the handle but have no implementation
2606                  * for it
2607                  */
2608                 pr_info("No High Speed Charging capability found\n");
2609                 return 0;
2610         }
2611
2612         hsc_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2613         if (!hsc_handle)
2614                 return -ENOMEM;
2615
2616         sysfs_attr_init(&hsc_handle->attr);
2617         hsc_handle->attr.name = "battery_highspeed_charging";
2618         hsc_handle->attr.mode = S_IRUGO | S_IWUSR;
2619         hsc_handle->show = sony_nc_highspeed_charging_show;
2620         hsc_handle->store = sony_nc_highspeed_charging_store;
2621
2622         result = device_create_file(&pd->dev, hsc_handle);
2623         if (result) {
2624                 kfree(hsc_handle);
2625                 hsc_handle = NULL;
2626                 return result;
2627         }
2628
2629         return 0;
2630 }
2631
2632 static void sony_nc_highspeed_charging_cleanup(struct platform_device *pd)
2633 {
2634         if (hsc_handle) {
2635                 device_remove_file(&pd->dev, hsc_handle);
2636                 kfree(hsc_handle);
2637                 hsc_handle = NULL;
2638         }
2639 }
2640
2641 /* low battery function */
2642 static struct device_attribute *lowbatt_handle;
2643
2644 static ssize_t sony_nc_lowbatt_store(struct device *dev,
2645                 struct device_attribute *attr,
2646                 const char *buffer, size_t count)
2647 {
2648         unsigned int result;
2649         unsigned long value;
2650
2651         if (count > 31)
2652                 return -EINVAL;
2653
2654         if (kstrtoul(buffer, 10, &value) || value > 1)
2655                 return -EINVAL;
2656
2657         if (sony_call_snc_handle(0x0121, value << 8, &result))
2658                 return -EIO;
2659
2660         return count;
2661 }
2662
2663 static ssize_t sony_nc_lowbatt_show(struct device *dev,
2664                 struct device_attribute *attr, char *buffer)
2665 {
2666         unsigned int result;
2667
2668         if (sony_call_snc_handle(0x0121, 0x0200, &result))
2669                 return -EIO;
2670
2671         return snprintf(buffer, PAGE_SIZE, "%d\n", result & 1);
2672 }
2673
2674 static int sony_nc_lowbatt_setup(struct platform_device *pd)
2675 {
2676         unsigned int result;
2677
2678         lowbatt_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2679         if (!lowbatt_handle)
2680                 return -ENOMEM;
2681
2682         sysfs_attr_init(&lowbatt_handle->attr);
2683         lowbatt_handle->attr.name = "lowbatt_hibernate";
2684         lowbatt_handle->attr.mode = S_IRUGO | S_IWUSR;
2685         lowbatt_handle->show = sony_nc_lowbatt_show;
2686         lowbatt_handle->store = sony_nc_lowbatt_store;
2687
2688         result = device_create_file(&pd->dev, lowbatt_handle);
2689         if (result) {
2690                 kfree(lowbatt_handle);
2691                 lowbatt_handle = NULL;
2692                 return result;
2693         }
2694
2695         return 0;
2696 }
2697
2698 static void sony_nc_lowbatt_cleanup(struct platform_device *pd)
2699 {
2700         if (lowbatt_handle) {
2701                 device_remove_file(&pd->dev, lowbatt_handle);
2702                 kfree(lowbatt_handle);
2703                 lowbatt_handle = NULL;
2704         }
2705 }
2706
2707 /* fan speed function */
2708 static struct device_attribute *fan_handle, *hsf_handle;
2709
2710 static ssize_t sony_nc_hsfan_store(struct device *dev,
2711                 struct device_attribute *attr,
2712                 const char *buffer, size_t count)
2713 {
2714         unsigned int result;
2715         unsigned long value;
2716
2717         if (count > 31)
2718                 return -EINVAL;
2719
2720         if (kstrtoul(buffer, 10, &value) || value > 1)
2721                 return -EINVAL;
2722
2723         if (sony_call_snc_handle(0x0149, value << 0x10 | 0x0200, &result))
2724                 return -EIO;
2725
2726         return count;
2727 }
2728
2729 static ssize_t sony_nc_hsfan_show(struct device *dev,
2730                 struct device_attribute *attr, char *buffer)
2731 {
2732         unsigned int result;
2733
2734         if (sony_call_snc_handle(0x0149, 0x0100, &result))
2735                 return -EIO;
2736
2737         return snprintf(buffer, PAGE_SIZE, "%d\n", result & 0x01);
2738 }
2739
2740 static ssize_t sony_nc_fanspeed_show(struct device *dev,
2741                 struct device_attribute *attr, char *buffer)
2742 {
2743         unsigned int result;
2744
2745         if (sony_call_snc_handle(0x0149, 0x0300, &result))
2746                 return -EIO;
2747
2748         return snprintf(buffer, PAGE_SIZE, "%d\n", result & 0xff);
2749 }
2750
2751 static int sony_nc_fanspeed_setup(struct platform_device *pd)
2752 {
2753         unsigned int result;
2754
2755         fan_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2756         if (!fan_handle)
2757                 return -ENOMEM;
2758
2759         hsf_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2760         if (!hsf_handle) {
2761                 result = -ENOMEM;
2762                 goto out_hsf_handle_alloc;
2763         }
2764
2765         sysfs_attr_init(&fan_handle->attr);
2766         fan_handle->attr.name = "fanspeed";
2767         fan_handle->attr.mode = S_IRUGO;
2768         fan_handle->show = sony_nc_fanspeed_show;
2769         fan_handle->store = NULL;
2770
2771         sysfs_attr_init(&hsf_handle->attr);
2772         hsf_handle->attr.name = "fan_forced";
2773         hsf_handle->attr.mode = S_IRUGO | S_IWUSR;
2774         hsf_handle->show = sony_nc_hsfan_show;
2775         hsf_handle->store = sony_nc_hsfan_store;
2776
2777         result = device_create_file(&pd->dev, fan_handle);
2778         if (result)
2779                 goto out_fan_handle;
2780
2781         result = device_create_file(&pd->dev, hsf_handle);
2782         if (result)
2783                 goto out_hsf_handle;
2784
2785         return 0;
2786
2787 out_hsf_handle:
2788         device_remove_file(&pd->dev, fan_handle);
2789
2790 out_fan_handle:
2791         kfree(hsf_handle);
2792         hsf_handle = NULL;
2793
2794 out_hsf_handle_alloc:
2795         kfree(fan_handle);
2796         fan_handle = NULL;
2797         return result;
2798 }
2799
2800 static void sony_nc_fanspeed_cleanup(struct platform_device *pd)
2801 {
2802         if (fan_handle) {
2803                 device_remove_file(&pd->dev, fan_handle);
2804                 kfree(fan_handle);
2805                 fan_handle = NULL;
2806         }
2807         if (hsf_handle) {
2808                 device_remove_file(&pd->dev, hsf_handle);
2809                 kfree(hsf_handle);
2810                 hsf_handle = NULL;
2811         }
2812 }
2813
2814 /* USB charge function */
2815 static struct device_attribute *uc_handle;
2816
2817 static ssize_t sony_nc_usb_charge_store(struct device *dev,
2818                 struct device_attribute *attr,
2819                 const char *buffer, size_t count)
2820 {
2821         unsigned int result;
2822         unsigned long value;
2823
2824         if (count > 31)
2825                 return -EINVAL;
2826
2827         if (kstrtoul(buffer, 10, &value) || value > 1)
2828                 return -EINVAL;
2829
2830         if (sony_call_snc_handle(0x0155, value << 0x10 | 0x0100, &result))
2831                 return -EIO;
2832
2833         return count;
2834 }
2835
2836 static ssize_t sony_nc_usb_charge_show(struct device *dev,
2837                 struct device_attribute *attr, char *buffer)
2838 {
2839         unsigned int result;
2840
2841         if (sony_call_snc_handle(0x0155, 0x0000, &result))
2842                 return -EIO;
2843
2844         return snprintf(buffer, PAGE_SIZE, "%d\n", result & 0x01);
2845 }
2846
2847 static int sony_nc_usb_charge_setup(struct platform_device *pd)
2848 {
2849         unsigned int result;
2850
2851         if (sony_call_snc_handle(0x0155, 0x0000, &result) || !(result & 0x01)) {
2852                 /* some models advertise the handle but have no implementation
2853                  * for it
2854                  */
2855                 pr_info("No USB Charge capability found\n");
2856                 return 0;
2857         }
2858
2859         uc_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2860         if (!uc_handle)
2861                 return -ENOMEM;
2862
2863         sysfs_attr_init(&uc_handle->attr);
2864         uc_handle->attr.name = "usb_charge";
2865         uc_handle->attr.mode = S_IRUGO | S_IWUSR;
2866         uc_handle->show = sony_nc_usb_charge_show;
2867         uc_handle->store = sony_nc_usb_charge_store;
2868
2869         result = device_create_file(&pd->dev, uc_handle);
2870         if (result) {
2871                 kfree(uc_handle);
2872                 uc_handle = NULL;
2873                 return result;
2874         }
2875
2876         return 0;
2877 }
2878
2879 static void sony_nc_usb_charge_cleanup(struct platform_device *pd)
2880 {
2881         if (uc_handle) {
2882                 device_remove_file(&pd->dev, uc_handle);
2883                 kfree(uc_handle);
2884                 uc_handle = NULL;
2885         }
2886 }
2887
2888 /* Panel ID function */
2889 static struct device_attribute *panel_handle;
2890
2891 static ssize_t sony_nc_panelid_show(struct device *dev,
2892                 struct device_attribute *attr, char *buffer)
2893 {
2894         unsigned int result;
2895
2896         if (sony_call_snc_handle(0x011D, 0x0000, &result))
2897                 return -EIO;
2898
2899         return snprintf(buffer, PAGE_SIZE, "%d\n", result);
2900 }
2901
2902 static int sony_nc_panelid_setup(struct platform_device *pd)
2903 {
2904         unsigned int result;
2905
2906         panel_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2907         if (!panel_handle)
2908                 return -ENOMEM;
2909
2910         sysfs_attr_init(&panel_handle->attr);
2911         panel_handle->attr.name = "panel_id";
2912         panel_handle->attr.mode = S_IRUGO;
2913         panel_handle->show = sony_nc_panelid_show;
2914         panel_handle->store = NULL;
2915
2916         result = device_create_file(&pd->dev, panel_handle);
2917         if (result) {
2918                 kfree(panel_handle);
2919                 panel_handle = NULL;
2920                 return result;
2921         }
2922
2923         return 0;
2924 }
2925
2926 static void sony_nc_panelid_cleanup(struct platform_device *pd)
2927 {
2928         if (panel_handle) {
2929                 device_remove_file(&pd->dev, panel_handle);
2930                 kfree(panel_handle);
2931                 panel_handle = NULL;
2932         }
2933 }
2934
2935 /* smart connect function */
2936 static struct device_attribute *sc_handle;
2937
2938 static ssize_t sony_nc_smart_conn_store(struct device *dev,
2939                 struct device_attribute *attr,
2940                 const char *buffer, size_t count)
2941 {
2942         unsigned int result;
2943         unsigned long value;
2944
2945         if (count > 31)
2946                 return -EINVAL;
2947
2948         if (kstrtoul(buffer, 10, &value) || value > 1)
2949                 return -EINVAL;
2950
2951         if (sony_call_snc_handle(0x0168, value << 0x10, &result))
2952                 return -EIO;
2953
2954         return count;
2955 }
2956
2957 static int sony_nc_smart_conn_setup(struct platform_device *pd)
2958 {
2959         unsigned int result;
2960
2961         sc_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2962         if (!sc_handle)
2963                 return -ENOMEM;
2964
2965         sysfs_attr_init(&sc_handle->attr);
2966         sc_handle->attr.name = "smart_connect";
2967         sc_handle->attr.mode = S_IWUSR;
2968         sc_handle->show = NULL;
2969         sc_handle->store = sony_nc_smart_conn_store;
2970
2971         result = device_create_file(&pd->dev, sc_handle);
2972         if (result) {
2973                 kfree(sc_handle);
2974                 sc_handle = NULL;
2975                 return result;
2976         }
2977
2978         return 0;
2979 }
2980
2981 static void sony_nc_smart_conn_cleanup(struct platform_device *pd)
2982 {
2983         if (sc_handle) {
2984                 device_remove_file(&pd->dev, sc_handle);
2985                 kfree(sc_handle);
2986                 sc_handle = NULL;
2987         }
2988 }
2989
2990 /* Touchpad enable/disable */
2991 struct touchpad_control {
2992         struct device_attribute attr;
2993         int handle;
2994 };
2995 static struct touchpad_control *tp_ctl;
2996
2997 static ssize_t sony_nc_touchpad_store(struct device *dev,
2998                 struct device_attribute *attr, const char *buffer, size_t count)
2999 {
3000         unsigned int result;
3001         unsigned long value;
3002
3003         if (count > 31)
3004                 return -EINVAL;
3005
3006         if (kstrtoul(buffer, 10, &value) || value > 1)
3007                 return -EINVAL;
3008
3009         /* sysfs: 0 disabled, 1 enabled
3010          * EC: 0 enabled, 1 disabled
3011          */
3012         if (sony_call_snc_handle(tp_ctl->handle,
3013                                 (!value << 0x10) | 0x100, &result))
3014                 return -EIO;
3015
3016         return count;
3017 }
3018
3019 static ssize_t sony_nc_touchpad_show(struct device *dev,
3020                 struct device_attribute *attr, char *buffer)
3021 {
3022         unsigned int result;
3023
3024         if (sony_call_snc_handle(tp_ctl->handle, 0x000, &result))
3025                 return -EINVAL;
3026
3027         return snprintf(buffer, PAGE_SIZE, "%d\n", !(result & 0x01));
3028 }
3029
3030 static int sony_nc_touchpad_setup(struct platform_device *pd,
3031                 unsigned int handle)
3032 {
3033         int ret = 0;
3034
3035         tp_ctl = kzalloc(sizeof(struct touchpad_control), GFP_KERNEL);
3036         if (!tp_ctl)
3037                 return -ENOMEM;
3038
3039         tp_ctl->handle = handle;
3040
3041         sysfs_attr_init(&tp_ctl->attr.attr);
3042         tp_ctl->attr.attr.name = "touchpad";
3043         tp_ctl->attr.attr.mode = S_IRUGO | S_IWUSR;
3044         tp_ctl->attr.show = sony_nc_touchpad_show;
3045         tp_ctl->attr.store = sony_nc_touchpad_store;
3046
3047         ret = device_create_file(&pd->dev, &tp_ctl->attr);
3048         if (ret) {
3049                 kfree(tp_ctl);
3050                 tp_ctl = NULL;
3051         }
3052
3053         return ret;
3054 }
3055
3056 static void sony_nc_touchpad_cleanup(struct platform_device *pd)
3057 {
3058         if (tp_ctl) {
3059                 device_remove_file(&pd->dev, &tp_ctl->attr);
3060                 kfree(tp_ctl);
3061                 tp_ctl = NULL;
3062         }
3063 }
3064
3065 static void sony_nc_backlight_ng_read_limits(int handle,
3066                 struct sony_backlight_props *props)
3067 {
3068         u64 offset;
3069         int i;
3070         int lvl_table_len = 0;
3071         u8 min = 0xff, max = 0x00;
3072         unsigned char buffer[32] = { 0 };
3073
3074         props->handle = handle;
3075         props->offset = 0;
3076         props->maxlvl = 0xff;
3077
3078         offset = sony_find_snc_handle(handle);
3079
3080         /* try to read the boundaries from ACPI tables, if we fail the above
3081          * defaults should be reasonable
3082          */
3083         i = sony_nc_buffer_call(sony_nc_acpi_handle, "SN06", &offset, buffer,
3084                         32);
3085         if (i < 0)
3086                 return;
3087
3088         switch (handle) {
3089         case 0x012f:
3090         case 0x0137:
3091                 lvl_table_len = 9;
3092                 break;
3093         case 0x143:
3094         case 0x14b:
3095         case 0x14c:
3096                 lvl_table_len = 16;
3097                 break;
3098         }
3099
3100         /* the buffer lists brightness levels available, brightness levels are
3101          * from position 0 to 8 in the array, other values are used by ALS
3102          * control.
3103          */
3104         for (i = 0; i < lvl_table_len && i < ARRAY_SIZE(buffer); i++) {
3105
3106                 dprintk("Brightness level: %d\n", buffer[i]);
3107
3108                 if (!buffer[i])
3109                         break;
3110
3111                 if (buffer[i] > max)
3112                         max = buffer[i];
3113                 if (buffer[i] < min)
3114                         min = buffer[i];
3115         }
3116         props->offset = min;
3117         props->maxlvl = max;
3118         dprintk("Brightness levels: min=%d max=%d\n", props->offset,
3119                         props->maxlvl);
3120 }
3121
3122 static void sony_nc_backlight_setup(void)
3123 {
3124         int max_brightness = 0;
3125         const struct backlight_ops *ops = NULL;
3126         struct backlight_properties props;
3127
3128         if (sony_find_snc_handle(0x12f) >= 0) {
3129                 ops = &sony_backlight_ng_ops;
3130                 sony_bl_props.cmd_base = 0x0100;
3131                 sony_nc_backlight_ng_read_limits(0x12f, &sony_bl_props);
3132                 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
3133
3134         } else if (sony_find_snc_handle(0x137) >= 0) {
3135                 ops = &sony_backlight_ng_ops;
3136                 sony_bl_props.cmd_base = 0x0100;
3137                 sony_nc_backlight_ng_read_limits(0x137, &sony_bl_props);
3138                 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
3139
3140         } else if (sony_find_snc_handle(0x143) >= 0) {
3141                 ops = &sony_backlight_ng_ops;
3142                 sony_bl_props.cmd_base = 0x3000;
3143                 sony_nc_backlight_ng_read_limits(0x143, &sony_bl_props);
3144                 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
3145
3146         } else if (sony_find_snc_handle(0x14b) >= 0) {
3147                 ops = &sony_backlight_ng_ops;
3148                 sony_bl_props.cmd_base = 0x3000;
3149                 sony_nc_backlight_ng_read_limits(0x14b, &sony_bl_props);
3150                 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
3151
3152         } else if (sony_find_snc_handle(0x14c) >= 0) {
3153                 ops = &sony_backlight_ng_ops;
3154                 sony_bl_props.cmd_base = 0x3000;
3155                 sony_nc_backlight_ng_read_limits(0x14c, &sony_bl_props);
3156                 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
3157
3158         } else if (acpi_has_method(sony_nc_acpi_handle, "GBRT")) {
3159                 ops = &sony_backlight_ops;
3160                 max_brightness = SONY_MAX_BRIGHTNESS - 1;
3161
3162         } else
3163                 return;
3164
3165         memset(&props, 0, sizeof(struct backlight_properties));
3166         props.type = BACKLIGHT_PLATFORM;
3167         props.max_brightness = max_brightness;
3168         sony_bl_props.dev = backlight_device_register("sony", NULL,
3169                                                       &sony_bl_props,
3170                                                       ops, &props);
3171
3172         if (IS_ERR(sony_bl_props.dev)) {
3173                 pr_warn("unable to register backlight device\n");
3174                 sony_bl_props.dev = NULL;
3175         } else
3176                 sony_bl_props.dev->props.brightness =
3177                         ops->get_brightness(sony_bl_props.dev);
3178 }
3179
3180 static void sony_nc_backlight_cleanup(void)
3181 {
3182         backlight_device_unregister(sony_bl_props.dev);
3183 }
3184
3185 static int sony_nc_add(struct acpi_device *device)
3186 {
3187         acpi_status status;
3188         int result = 0;
3189         struct sony_nc_value *item;
3190
3191         sony_nc_acpi_device = device;
3192         strcpy(acpi_device_class(device), "sony/hotkey");
3193
3194         sony_nc_acpi_handle = device->handle;
3195
3196         /* read device status */
3197         result = acpi_bus_get_status(device);
3198         /* bail IFF the above call was successful and the device is not present */
3199         if (!result && !device->status.present) {
3200                 dprintk("Device not present\n");
3201                 result = -ENODEV;
3202                 goto outwalk;
3203         }
3204
3205         result = sony_pf_add();
3206         if (result)
3207                 goto outpresent;
3208
3209         if (debug) {
3210                 status = acpi_walk_namespace(ACPI_TYPE_METHOD,
3211                                 sony_nc_acpi_handle, 1, sony_walk_callback,
3212                                 NULL, NULL, NULL);
3213                 if (ACPI_FAILURE(status)) {
3214                         pr_warn("unable to walk acpi resources\n");
3215                         result = -ENODEV;
3216                         goto outpresent;
3217                 }
3218         }
3219
3220         result = sony_laptop_setup_input(device);
3221         if (result) {
3222                 pr_err("Unable to create input devices\n");
3223                 goto outplatform;
3224         }
3225
3226         if (acpi_has_method(sony_nc_acpi_handle, "ECON")) {
3227                 int arg = 1;
3228                 if (sony_nc_int_call(sony_nc_acpi_handle, "ECON", &arg, NULL))
3229                         dprintk("ECON Method failed\n");
3230         }
3231
3232         if (acpi_has_method(sony_nc_acpi_handle, "SN00")) {
3233                 dprintk("Doing SNC setup\n");
3234                 /* retrieve the available handles */
3235                 result = sony_nc_handles_setup(sony_pf_device);
3236                 if (!result)
3237                         sony_nc_function_setup(device, sony_pf_device);
3238         }
3239
3240         if (acpi_video_get_backlight_type() == acpi_backlight_vendor)
3241                 sony_nc_backlight_setup();
3242
3243         /* create sony_pf sysfs attributes related to the SNC device */
3244         for (item = sony_nc_values; item->name; ++item) {
3245
3246                 if (!debug && item->debug)
3247                         continue;
3248
3249                 /* find the available acpiget as described in the DSDT */
3250                 for (; item->acpiget && *item->acpiget; ++item->acpiget) {
3251                         if (acpi_has_method(sony_nc_acpi_handle,
3252                                                         *item->acpiget)) {
3253                                 dprintk("Found %s getter: %s\n",
3254                                                 item->name, *item->acpiget);
3255                                 item->devattr.attr.mode |= S_IRUGO;
3256                                 break;
3257                         }
3258                 }
3259
3260                 /* find the available acpiset as described in the DSDT */
3261                 for (; item->acpiset && *item->acpiset; ++item->acpiset) {
3262                         if (acpi_has_method(sony_nc_acpi_handle,
3263                                                         *item->acpiset)) {
3264                                 dprintk("Found %s setter: %s\n",
3265                                                 item->name, *item->acpiset);
3266                                 item->devattr.attr.mode |= S_IWUSR;
3267                                 break;
3268                         }
3269                 }
3270
3271                 if (item->devattr.attr.mode != 0) {
3272                         result =
3273                             device_create_file(&sony_pf_device->dev,
3274                                                &item->devattr);
3275                         if (result)
3276                                 goto out_sysfs;
3277                 }
3278         }
3279
3280         pr_info("SNC setup done.\n");
3281         return 0;
3282
3283 out_sysfs:
3284         for (item = sony_nc_values; item->name; ++item) {
3285                 device_remove_file(&sony_pf_device->dev, &item->devattr);
3286         }
3287         sony_nc_backlight_cleanup();
3288         sony_nc_function_cleanup(sony_pf_device);
3289         sony_nc_handles_cleanup(sony_pf_device);
3290
3291 outplatform:
3292         sony_laptop_remove_input();
3293
3294 outpresent:
3295         sony_pf_remove();
3296
3297 outwalk:
3298         sony_nc_rfkill_cleanup();
3299         return result;
3300 }
3301
3302 static int sony_nc_remove(struct acpi_device *device)
3303 {
3304         struct sony_nc_value *item;
3305
3306         sony_nc_backlight_cleanup();
3307
3308         sony_nc_acpi_device = NULL;
3309
3310         for (item = sony_nc_values; item->name; ++item) {
3311                 device_remove_file(&sony_pf_device->dev, &item->devattr);
3312         }
3313
3314         sony_nc_function_cleanup(sony_pf_device);
3315         sony_nc_handles_cleanup(sony_pf_device);
3316         sony_pf_remove();
3317         sony_laptop_remove_input();
3318         dprintk(SONY_NC_DRIVER_NAME " removed.\n");
3319
3320         return 0;
3321 }
3322
3323 static const struct acpi_device_id sony_device_ids[] = {
3324         {SONY_NC_HID, 0},
3325         {SONY_PIC_HID, 0},
3326         {"", 0},
3327 };
3328 MODULE_DEVICE_TABLE(acpi, sony_device_ids);
3329
3330 static const struct acpi_device_id sony_nc_device_ids[] = {
3331         {SONY_NC_HID, 0},
3332         {"", 0},
3333 };
3334
3335 static struct acpi_driver sony_nc_driver = {
3336         .name = SONY_NC_DRIVER_NAME,
3337         .class = SONY_NC_CLASS,
3338         .ids = sony_nc_device_ids,
3339         .owner = THIS_MODULE,
3340         .ops = {
3341                 .add = sony_nc_add,
3342                 .remove = sony_nc_remove,
3343                 .notify = sony_nc_notify,
3344                 },
3345         .drv.pm = &sony_nc_pm,
3346 };
3347
3348 /*********** SPIC (SNY6001) Device ***********/
3349
3350 #define SONYPI_DEVICE_TYPE1     0x00000001
3351 #define SONYPI_DEVICE_TYPE2     0x00000002
3352 #define SONYPI_DEVICE_TYPE3     0x00000004
3353
3354 #define SONYPI_TYPE1_OFFSET     0x04
3355 #define SONYPI_TYPE2_OFFSET     0x12
3356 #define SONYPI_TYPE3_OFFSET     0x12
3357
3358 struct sony_pic_ioport {
3359         struct acpi_resource_io io1;
3360         struct acpi_resource_io io2;
3361         struct list_head        list;
3362 };
3363
3364 struct sony_pic_irq {
3365         struct acpi_resource_irq        irq;
3366         struct list_head                list;
3367 };
3368
3369 struct sonypi_eventtypes {
3370         u8                      data;
3371         unsigned long           mask;
3372         struct sonypi_event     *events;
3373 };
3374
3375 struct sony_pic_dev {
3376         struct acpi_device              *acpi_dev;
3377         struct sony_pic_irq             *cur_irq;
3378         struct sony_pic_ioport          *cur_ioport;
3379         struct list_head                interrupts;
3380         struct list_head                ioports;
3381         struct mutex                    lock;
3382         struct sonypi_eventtypes        *event_types;
3383         int                             (*handle_irq)(const u8, const u8);
3384         int                             model;
3385         u16                             evport_offset;
3386         u8                              camera_power;
3387         u8                              bluetooth_power;
3388         u8                              wwan_power;
3389 };
3390
3391 static struct sony_pic_dev spic_dev = {
3392         .interrupts     = LIST_HEAD_INIT(spic_dev.interrupts),
3393         .ioports        = LIST_HEAD_INIT(spic_dev.ioports),
3394 };
3395
3396 static int spic_drv_registered;
3397
3398 /* Event masks */
3399 #define SONYPI_JOGGER_MASK                      0x00000001
3400 #define SONYPI_CAPTURE_MASK                     0x00000002
3401 #define SONYPI_FNKEY_MASK                       0x00000004
3402 #define SONYPI_BLUETOOTH_MASK                   0x00000008
3403 #define SONYPI_PKEY_MASK                        0x00000010
3404 #define SONYPI_BACK_MASK                        0x00000020
3405 #define SONYPI_HELP_MASK                        0x00000040
3406 #define SONYPI_LID_MASK                         0x00000080
3407 #define SONYPI_ZOOM_MASK                        0x00000100
3408 #define SONYPI_THUMBPHRASE_MASK                 0x00000200
3409 #define SONYPI_MEYE_MASK                        0x00000400
3410 #define SONYPI_MEMORYSTICK_MASK                 0x00000800
3411 #define SONYPI_BATTERY_MASK                     0x00001000
3412 #define SONYPI_WIRELESS_MASK                    0x00002000
3413
3414 struct sonypi_event {
3415         u8      data;
3416         u8      event;
3417 };
3418
3419 /* The set of possible button release events */
3420 static struct sonypi_event sonypi_releaseev[] = {
3421         { 0x00, SONYPI_EVENT_ANYBUTTON_RELEASED },
3422         { 0, 0 }
3423 };
3424
3425 /* The set of possible jogger events  */
3426 static struct sonypi_event sonypi_joggerev[] = {
3427         { 0x1f, SONYPI_EVENT_JOGDIAL_UP },
3428         { 0x01, SONYPI_EVENT_JOGDIAL_DOWN },
3429         { 0x5f, SONYPI_EVENT_JOGDIAL_UP_PRESSED },
3430         { 0x41, SONYPI_EVENT_JOGDIAL_DOWN_PRESSED },
3431         { 0x1e, SONYPI_EVENT_JOGDIAL_FAST_UP },
3432         { 0x02, SONYPI_EVENT_JOGDIAL_FAST_DOWN },
3433         { 0x5e, SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED },
3434         { 0x42, SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED },
3435         { 0x1d, SONYPI_EVENT_JOGDIAL_VFAST_UP },
3436         { 0x03, SONYPI_EVENT_JOGDIAL_VFAST_DOWN },
3437         { 0x5d, SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED },
3438         { 0x43, SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED },
3439         { 0x40, SONYPI_EVENT_JOGDIAL_PRESSED },
3440         { 0, 0 }
3441 };
3442
3443 /* The set of possible capture button events */
3444 static struct sonypi_event sonypi_captureev[] = {
3445         { 0x05, SONYPI_EVENT_CAPTURE_PARTIALPRESSED },
3446         { 0x07, SONYPI_EVENT_CAPTURE_PRESSED },
3447         { 0x40, SONYPI_EVENT_CAPTURE_PRESSED },
3448         { 0x01, SONYPI_EVENT_CAPTURE_PARTIALRELEASED },
3449         { 0, 0 }
3450 };
3451
3452 /* The set of possible fnkeys events */
3453 static struct sonypi_event sonypi_fnkeyev[] = {
3454         { 0x10, SONYPI_EVENT_FNKEY_ESC },
3455         { 0x11, SONYPI_EVENT_FNKEY_F1 },
3456         { 0x12, SONYPI_EVENT_FNKEY_F2 },
3457         { 0x13, SONYPI_EVENT_FNKEY_F3 },
3458         { 0x14, SONYPI_EVENT_FNKEY_F4 },
3459         { 0x15, SONYPI_EVENT_FNKEY_F5 },
3460         { 0x16, SONYPI_EVENT_FNKEY_F6 },
3461         { 0x17, SONYPI_EVENT_FNKEY_F7 },
3462         { 0x18, SONYPI_EVENT_FNKEY_F8 },
3463         { 0x19, SONYPI_EVENT_FNKEY_F9 },
3464         { 0x1a, SONYPI_EVENT_FNKEY_F10 },
3465         { 0x1b, SONYPI_EVENT_FNKEY_F11 },
3466         { 0x1c, SONYPI_EVENT_FNKEY_F12 },
3467         { 0x1f, SONYPI_EVENT_FNKEY_RELEASED },
3468         { 0x21, SONYPI_EVENT_FNKEY_1 },
3469         { 0x22, SONYPI_EVENT_FNKEY_2 },
3470         { 0x31, SONYPI_EVENT_FNKEY_D },
3471         { 0x32, SONYPI_EVENT_FNKEY_E },
3472         { 0x33, SONYPI_EVENT_FNKEY_F },
3473         { 0x34, SONYPI_EVENT_FNKEY_S },
3474         { 0x35, SONYPI_EVENT_FNKEY_B },
3475         { 0x36, SONYPI_EVENT_FNKEY_ONLY },
3476         { 0, 0 }
3477 };
3478
3479 /* The set of possible program key events */
3480 static struct sonypi_event sonypi_pkeyev[] = {
3481         { 0x01, SONYPI_EVENT_PKEY_P1 },
3482         { 0x02, SONYPI_EVENT_PKEY_P2 },
3483         { 0x04, SONYPI_EVENT_PKEY_P3 },
3484         { 0x20, SONYPI_EVENT_PKEY_P1 },
3485         { 0, 0 }
3486 };
3487
3488 /* The set of possible bluetooth events */
3489 static struct sonypi_event sonypi_blueev[] = {
3490         { 0x55, SONYPI_EVENT_BLUETOOTH_PRESSED },
3491         { 0x59, SONYPI_EVENT_BLUETOOTH_ON },
3492         { 0x5a, SONYPI_EVENT_BLUETOOTH_OFF },
3493         { 0, 0 }
3494 };
3495
3496 /* The set of possible wireless events */
3497 static struct sonypi_event sonypi_wlessev[] = {
3498         { 0x59, SONYPI_EVENT_IGNORE },
3499         { 0x5a, SONYPI_EVENT_IGNORE },
3500         { 0, 0 }
3501 };
3502
3503 /* The set of possible back button events */
3504 static struct sonypi_event sonypi_backev[] = {
3505         { 0x20, SONYPI_EVENT_BACK_PRESSED },
3506         { 0, 0 }
3507 };
3508
3509 /* The set of possible help button events */
3510 static struct sonypi_event sonypi_helpev[] = {
3511         { 0x3b, SONYPI_EVENT_HELP_PRESSED },
3512         { 0, 0 }
3513 };
3514
3515
3516 /* The set of possible lid events */
3517 static struct sonypi_event sonypi_lidev[] = {
3518         { 0x51, SONYPI_EVENT_LID_CLOSED },
3519         { 0x50, SONYPI_EVENT_LID_OPENED },
3520         { 0, 0 }
3521 };
3522
3523 /* The set of possible zoom events */
3524 static struct sonypi_event sonypi_zoomev[] = {
3525         { 0x39, SONYPI_EVENT_ZOOM_PRESSED },
3526         { 0x10, SONYPI_EVENT_ZOOM_IN_PRESSED },
3527         { 0x20, SONYPI_EVENT_ZOOM_OUT_PRESSED },
3528         { 0x04, SONYPI_EVENT_ZOOM_PRESSED },
3529         { 0, 0 }
3530 };
3531
3532 /* The set of possible thumbphrase events */
3533 static struct sonypi_event sonypi_thumbphraseev[] = {
3534         { 0x3a, SONYPI_EVENT_THUMBPHRASE_PRESSED },
3535         { 0, 0 }
3536 };
3537
3538 /* The set of possible motioneye camera events */
3539 static struct sonypi_event sonypi_meyeev[] = {
3540         { 0x00, SONYPI_EVENT_MEYE_FACE },
3541         { 0x01, SONYPI_EVENT_MEYE_OPPOSITE },
3542         { 0, 0 }
3543 };
3544
3545 /* The set of possible memorystick events */
3546 static struct sonypi_event sonypi_memorystickev[] = {
3547         { 0x53, SONYPI_EVENT_MEMORYSTICK_INSERT },
3548         { 0x54, SONYPI_EVENT_MEMORYSTICK_EJECT },
3549         { 0, 0 }
3550 };
3551
3552 /* The set of possible battery events */
3553 static struct sonypi_event sonypi_batteryev[] = {
3554         { 0x20, SONYPI_EVENT_BATTERY_INSERT },
3555         { 0x30, SONYPI_EVENT_BATTERY_REMOVE },
3556         { 0, 0 }
3557 };
3558
3559 /* The set of possible volume events */
3560 static struct sonypi_event sonypi_volumeev[] = {
3561         { 0x01, SONYPI_EVENT_VOLUME_INC_PRESSED },
3562         { 0x02, SONYPI_EVENT_VOLUME_DEC_PRESSED },
3563         { 0, 0 }
3564 };
3565
3566 /* The set of possible brightness events */
3567 static struct sonypi_event sonypi_brightnessev[] = {
3568         { 0x80, SONYPI_EVENT_BRIGHTNESS_PRESSED },
3569         { 0, 0 }
3570 };
3571
3572 static struct sonypi_eventtypes type1_events[] = {
3573         { 0, 0xffffffff, sonypi_releaseev },
3574         { 0x70, SONYPI_MEYE_MASK, sonypi_meyeev },
3575         { 0x30, SONYPI_LID_MASK, sonypi_lidev },
3576         { 0x60, SONYPI_CAPTURE_MASK, sonypi_captureev },
3577         { 0x10, SONYPI_JOGGER_MASK, sonypi_joggerev },
3578         { 0x20, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
3579         { 0x30, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
3580         { 0x40, SONYPI_PKEY_MASK, sonypi_pkeyev },
3581         { 0x30, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
3582         { 0x40, SONYPI_BATTERY_MASK, sonypi_batteryev },
3583         { 0 },
3584 };
3585 static struct sonypi_eventtypes type2_events[] = {
3586         { 0, 0xffffffff, sonypi_releaseev },
3587         { 0x38, SONYPI_LID_MASK, sonypi_lidev },
3588         { 0x11, SONYPI_JOGGER_MASK, sonypi_joggerev },
3589         { 0x61, SONYPI_CAPTURE_MASK, sonypi_captureev },
3590         { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
3591         { 0x31, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
3592         { 0x08, SONYPI_PKEY_MASK, sonypi_pkeyev },
3593         { 0x11, SONYPI_BACK_MASK, sonypi_backev },
3594         { 0x21, SONYPI_HELP_MASK, sonypi_helpev },
3595         { 0x21, SONYPI_ZOOM_MASK, sonypi_zoomev },
3596         { 0x20, SONYPI_THUMBPHRASE_MASK, sonypi_thumbphraseev },
3597         { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
3598         { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
3599         { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
3600         { 0 },
3601 };
3602 static struct sonypi_eventtypes type3_events[] = {
3603         { 0, 0xffffffff, sonypi_releaseev },
3604         { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
3605         { 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
3606         { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
3607         { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
3608         { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
3609         { 0x05, SONYPI_PKEY_MASK, sonypi_pkeyev },
3610         { 0x05, SONYPI_ZOOM_MASK, sonypi_zoomev },
3611         { 0x05, SONYPI_CAPTURE_MASK, sonypi_captureev },
3612         { 0x05, SONYPI_PKEY_MASK, sonypi_volumeev },
3613         { 0x05, SONYPI_PKEY_MASK, sonypi_brightnessev },
3614         { 0 },
3615 };
3616
3617 /* low level spic calls */
3618 #define ITERATIONS_LONG         10000
3619 #define ITERATIONS_SHORT        10
3620 #define wait_on_command(command, iterations) {                          \
3621         unsigned int n = iterations;                                    \
3622         while (--n && (command))                                        \
3623                 udelay(1);                                              \
3624         if (!n)                                                         \
3625                 dprintk("command failed at %s : %s (line %d)\n",        \
3626                                 __FILE__, __func__, __LINE__);  \
3627 }
3628
3629 static u8 sony_pic_call1(u8 dev)
3630 {
3631         u8 v1, v2;
3632
3633         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
3634                         ITERATIONS_LONG);
3635         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
3636         v1 = inb_p(spic_dev.cur_ioport->io1.minimum + 4);
3637         v2 = inb_p(spic_dev.cur_ioport->io1.minimum);
3638         dprintk("sony_pic_call1(0x%.2x): 0x%.4x\n", dev, (v2 << 8) | v1);
3639         return v2;
3640 }
3641
3642 static u8 sony_pic_call2(u8 dev, u8 fn)
3643 {
3644         u8 v1;
3645
3646         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
3647                         ITERATIONS_LONG);
3648         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
3649         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
3650                         ITERATIONS_LONG);
3651         outb(fn, spic_dev.cur_ioport->io1.minimum);
3652         v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
3653         dprintk("sony_pic_call2(0x%.2x - 0x%.2x): 0x%.4x\n", dev, fn, v1);
3654         return v1;
3655 }
3656
3657 static u8 sony_pic_call3(u8 dev, u8 fn, u8 v)
3658 {
3659         u8 v1;
3660
3661         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
3662         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
3663         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
3664         outb(fn, spic_dev.cur_ioport->io1.minimum);
3665         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
3666         outb(v, spic_dev.cur_ioport->io1.minimum);
3667         v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
3668         dprintk("sony_pic_call3(0x%.2x - 0x%.2x - 0x%.2x): 0x%.4x\n",
3669                         dev, fn, v, v1);
3670         return v1;
3671 }
3672
3673 /*
3674  * minidrivers for SPIC models
3675  */
3676 static int type3_handle_irq(const u8 data_mask, const u8 ev)
3677 {
3678         /*
3679          * 0x31 could mean we have to take some extra action and wait for
3680          * the next irq for some Type3 models, it will generate a new
3681          * irq and we can read new data from the device:
3682          *  - 0x5c and 0x5f requires 0xA0
3683          *  - 0x61 requires 0xB3
3684          */
3685         if (data_mask == 0x31) {
3686                 if (ev == 0x5c || ev == 0x5f)
3687                         sony_pic_call1(0xA0);
3688                 else if (ev == 0x61)
3689                         sony_pic_call1(0xB3);
3690                 return 0;
3691         }
3692         return 1;
3693 }
3694
3695 static void sony_pic_detect_device_type(struct sony_pic_dev *dev)
3696 {
3697         struct pci_dev *pcidev;
3698
3699         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3700                         PCI_DEVICE_ID_INTEL_82371AB_3, NULL);
3701         if (pcidev) {
3702                 dev->model = SONYPI_DEVICE_TYPE1;
3703                 dev->evport_offset = SONYPI_TYPE1_OFFSET;
3704                 dev->event_types = type1_events;
3705                 goto out;
3706         }
3707
3708         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3709                         PCI_DEVICE_ID_INTEL_ICH6_1, NULL);
3710         if (pcidev) {
3711                 dev->model = SONYPI_DEVICE_TYPE2;
3712                 dev->evport_offset = SONYPI_TYPE2_OFFSET;
3713                 dev->event_types = type2_events;
3714                 goto out;
3715         }
3716
3717         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3718                         PCI_DEVICE_ID_INTEL_ICH7_1, NULL);
3719         if (pcidev) {
3720                 dev->model = SONYPI_DEVICE_TYPE3;
3721                 dev->handle_irq = type3_handle_irq;
3722                 dev->evport_offset = SONYPI_TYPE3_OFFSET;
3723                 dev->event_types = type3_events;
3724                 goto out;
3725         }
3726
3727         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3728                         PCI_DEVICE_ID_INTEL_ICH8_4, NULL);
3729         if (pcidev) {
3730                 dev->model = SONYPI_DEVICE_TYPE3;
3731                 dev->handle_irq = type3_handle_irq;
3732                 dev->evport_offset = SONYPI_TYPE3_OFFSET;
3733                 dev->event_types = type3_events;
3734                 goto out;
3735         }
3736
3737         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3738                         PCI_DEVICE_ID_INTEL_ICH9_1, NULL);
3739         if (pcidev) {
3740                 dev->model = SONYPI_DEVICE_TYPE3;
3741                 dev->handle_irq = type3_handle_irq;
3742                 dev->evport_offset = SONYPI_TYPE3_OFFSET;
3743                 dev->event_types = type3_events;
3744                 goto out;
3745         }
3746
3747         /* default */
3748         dev->model = SONYPI_DEVICE_TYPE2;
3749         dev->evport_offset = SONYPI_TYPE2_OFFSET;
3750         dev->event_types = type2_events;
3751
3752 out:
3753         pci_dev_put(pcidev);
3754
3755         pr_info("detected Type%d model\n",
3756                 dev->model == SONYPI_DEVICE_TYPE1 ? 1 :
3757                 dev->model == SONYPI_DEVICE_TYPE2 ? 2 : 3);
3758 }
3759
3760 /* camera tests and poweron/poweroff */
3761 #define SONYPI_CAMERA_PICTURE           5
3762 #define SONYPI_CAMERA_CONTROL           0x10
3763
3764 #define SONYPI_CAMERA_BRIGHTNESS                0
3765 #define SONYPI_CAMERA_CONTRAST                  1
3766 #define SONYPI_CAMERA_HUE                       2
3767 #define SONYPI_CAMERA_COLOR                     3
3768 #define SONYPI_CAMERA_SHARPNESS                 4
3769
3770 #define SONYPI_CAMERA_EXPOSURE_MASK             0xC
3771 #define SONYPI_CAMERA_WHITE_BALANCE_MASK        0x3
3772 #define SONYPI_CAMERA_PICTURE_MODE_MASK         0x30
3773 #define SONYPI_CAMERA_MUTE_MASK                 0x40
3774
3775 /* the rest don't need a loop until not 0xff */
3776 #define SONYPI_CAMERA_AGC                       6
3777 #define SONYPI_CAMERA_AGC_MASK                  0x30
3778 #define SONYPI_CAMERA_SHUTTER_MASK              0x7
3779
3780 #define SONYPI_CAMERA_SHUTDOWN_REQUEST          7
3781 #define SONYPI_CAMERA_CONTROL                   0x10
3782
3783 #define SONYPI_CAMERA_STATUS                    7
3784 #define SONYPI_CAMERA_STATUS_READY              0x2
3785 #define SONYPI_CAMERA_STATUS_POSITION           0x4
3786
3787 #define SONYPI_DIRECTION_BACKWARDS              0x4
3788
3789 #define SONYPI_CAMERA_REVISION                  8
3790 #define SONYPI_CAMERA_ROMVERSION                9
3791
3792 static int __sony_pic_camera_ready(void)
3793 {
3794         u8 v;
3795
3796         v = sony_pic_call2(0x8f, SONYPI_CAMERA_STATUS);
3797         return (v != 0xff && (v & SONYPI_CAMERA_STATUS_READY));
3798 }
3799
3800 static int __sony_pic_camera_off(void)
3801 {
3802         if (!camera) {
3803                 pr_warn("camera control not enabled\n");
3804                 return -ENODEV;
3805         }
3806
3807         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE,
3808                                 SONYPI_CAMERA_MUTE_MASK),
3809                         ITERATIONS_SHORT);
3810
3811         if (spic_dev.camera_power) {
3812                 sony_pic_call2(0x91, 0);
3813                 spic_dev.camera_power = 0;
3814         }
3815         return 0;
3816 }
3817
3818 static int __sony_pic_camera_on(void)
3819 {
3820         int i, j, x;
3821
3822         if (!camera) {
3823                 pr_warn("camera control not enabled\n");
3824                 return -ENODEV;
3825         }
3826
3827         if (spic_dev.camera_power)
3828                 return 0;
3829
3830         for (j = 5; j > 0; j--) {
3831
3832                 for (x = 0; x < 100 && sony_pic_call2(0x91, 0x1); x++)
3833                         msleep(10);
3834                 sony_pic_call1(0x93);
3835
3836                 for (i = 400; i > 0; i--) {
3837                         if (__sony_pic_camera_ready())
3838                                 break;
3839                         msleep(10);
3840                 }
3841                 if (i)
3842                         break;
3843         }
3844
3845         if (j == 0) {
3846                 pr_warn("failed to power on camera\n");
3847                 return -ENODEV;
3848         }
3849
3850         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTROL,
3851                                 0x5a),
3852                         ITERATIONS_SHORT);
3853
3854         spic_dev.camera_power = 1;
3855         return 0;
3856 }
3857
3858 /* External camera command (exported to the motion eye v4l driver) */
3859 int sony_pic_camera_command(int command, u8 value)
3860 {
3861         if (!camera)
3862                 return -EIO;
3863
3864         mutex_lock(&spic_dev.lock);
3865
3866         switch (command) {
3867         case SONY_PIC_COMMAND_SETCAMERA:
3868                 if (value)
3869                         __sony_pic_camera_on();
3870                 else
3871                         __sony_pic_camera_off();
3872                 break;
3873         case SONY_PIC_COMMAND_SETCAMERABRIGHTNESS:
3874                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_BRIGHTNESS, value),
3875                                 ITERATIONS_SHORT);
3876                 break;
3877         case SONY_PIC_COMMAND_SETCAMERACONTRAST:
3878                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTRAST, value),
3879                                 ITERATIONS_SHORT);
3880                 break;
3881         case SONY_PIC_COMMAND_SETCAMERAHUE:
3882                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_HUE, value),
3883                                 ITERATIONS_SHORT);
3884                 break;
3885         case SONY_PIC_COMMAND_SETCAMERACOLOR:
3886                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_COLOR, value),
3887                                 ITERATIONS_SHORT);
3888                 break;
3889         case SONY_PIC_COMMAND_SETCAMERASHARPNESS:
3890                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_SHARPNESS, value),
3891                                 ITERATIONS_SHORT);
3892                 break;
3893         case SONY_PIC_COMMAND_SETCAMERAPICTURE:
3894                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE, value),
3895                                 ITERATIONS_SHORT);
3896                 break;
3897         case SONY_PIC_COMMAND_SETCAMERAAGC:
3898                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_AGC, value),
3899                                 ITERATIONS_SHORT);
3900                 break;
3901         default:
3902                 pr_err("sony_pic_camera_command invalid: %d\n", command);
3903                 break;
3904         }
3905         mutex_unlock(&spic_dev.lock);
3906         return 0;
3907 }
3908 EXPORT_SYMBOL(sony_pic_camera_command);
3909
3910 /* gprs/edge modem (SZ460N and SZ210P), thanks to Joshua Wise */
3911 static void __sony_pic_set_wwanpower(u8 state)
3912 {
3913         state = !!state;
3914         if (spic_dev.wwan_power == state)
3915                 return;
3916         sony_pic_call2(0xB0, state);
3917         sony_pic_call1(0x82);
3918         spic_dev.wwan_power = state;
3919 }
3920
3921 static ssize_t sony_pic_wwanpower_store(struct device *dev,
3922                 struct device_attribute *attr,
3923                 const char *buffer, size_t count)
3924 {
3925         unsigned long value;
3926         if (count > 31)
3927                 return -EINVAL;
3928
3929         if (kstrtoul(buffer, 10, &value))
3930                 return -EINVAL;
3931
3932         mutex_lock(&spic_dev.lock);
3933         __sony_pic_set_wwanpower(value);
3934         mutex_unlock(&spic_dev.lock);
3935
3936         return count;
3937 }
3938
3939 static ssize_t sony_pic_wwanpower_show(struct device *dev,
3940                 struct device_attribute *attr, char *buffer)
3941 {
3942         ssize_t count;
3943         mutex_lock(&spic_dev.lock);
3944         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.wwan_power);
3945         mutex_unlock(&spic_dev.lock);
3946         return count;
3947 }
3948
3949 /* bluetooth subsystem power state */
3950 static void __sony_pic_set_bluetoothpower(u8 state)
3951 {
3952         state = !!state;
3953         if (spic_dev.bluetooth_power == state)
3954                 return;
3955         sony_pic_call2(0x96, state);
3956         sony_pic_call1(0x82);
3957         spic_dev.bluetooth_power = state;
3958 }
3959
3960 static ssize_t sony_pic_bluetoothpower_store(struct device *dev,
3961                 struct device_attribute *attr,
3962                 const char *buffer, size_t count)
3963 {
3964         unsigned long value;
3965         if (count > 31)
3966                 return -EINVAL;
3967
3968         if (kstrtoul(buffer, 10, &value))
3969                 return -EINVAL;
3970
3971         mutex_lock(&spic_dev.lock);
3972         __sony_pic_set_bluetoothpower(value);
3973         mutex_unlock(&spic_dev.lock);
3974
3975         return count;
3976 }
3977
3978 static ssize_t sony_pic_bluetoothpower_show(struct device *dev,
3979                 struct device_attribute *attr, char *buffer)
3980 {
3981         ssize_t count = 0;
3982         mutex_lock(&spic_dev.lock);
3983         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.bluetooth_power);
3984         mutex_unlock(&spic_dev.lock);
3985         return count;
3986 }
3987
3988 /* fan speed */
3989 /* FAN0 information (reverse engineered from ACPI tables) */
3990 #define SONY_PIC_FAN0_STATUS    0x93
3991 static int sony_pic_set_fanspeed(unsigned long value)
3992 {
3993         return ec_write(SONY_PIC_FAN0_STATUS, value);
3994 }
3995
3996 static int sony_pic_get_fanspeed(u8 *value)
3997 {
3998         return ec_read(SONY_PIC_FAN0_STATUS, value);
3999 }
4000
4001 static ssize_t sony_pic_fanspeed_store(struct device *dev,
4002                 struct device_attribute *attr,
4003                 const char *buffer, size_t count)
4004 {
4005         unsigned long value;
4006         if (count > 31)
4007                 return -EINVAL;
4008
4009         if (kstrtoul(buffer, 10, &value))
4010                 return -EINVAL;
4011
4012         if (sony_pic_set_fanspeed(value))
4013                 return -EIO;
4014
4015         return count;
4016 }
4017
4018 static ssize_t sony_pic_fanspeed_show(struct device *dev,
4019                 struct device_attribute *attr, char *buffer)
4020 {
4021         u8 value = 0;
4022         if (sony_pic_get_fanspeed(&value))
4023                 return -EIO;
4024
4025         return snprintf(buffer, PAGE_SIZE, "%d\n", value);
4026 }
4027
4028 #define SPIC_ATTR(_name, _mode)                                 \
4029 struct device_attribute spic_attr_##_name = __ATTR(_name,       \
4030                 _mode, sony_pic_## _name ##_show,               \
4031                 sony_pic_## _name ##_store)
4032
4033 static SPIC_ATTR(bluetoothpower, 0644);
4034 static SPIC_ATTR(wwanpower, 0644);
4035 static SPIC_ATTR(fanspeed, 0644);
4036
4037 static struct attribute *spic_attributes[] = {
4038         &spic_attr_bluetoothpower.attr,
4039         &spic_attr_wwanpower.attr,
4040         &spic_attr_fanspeed.attr,
4041         NULL
4042 };
4043
4044 static const struct attribute_group spic_attribute_group = {
4045         .attrs = spic_attributes
4046 };
4047
4048 /******** SONYPI compatibility **********/
4049 #ifdef CONFIG_SONYPI_COMPAT
4050
4051 /* battery / brightness / temperature  addresses */
4052 #define SONYPI_BAT_FLAGS        0x81
4053 #define SONYPI_LCD_LIGHT        0x96
4054 #define SONYPI_BAT1_PCTRM       0xa0
4055 #define SONYPI_BAT1_LEFT        0xa2
4056 #define SONYPI_BAT1_MAXRT       0xa4
4057 #define SONYPI_BAT2_PCTRM       0xa8
4058 #define SONYPI_BAT2_LEFT        0xaa
4059 #define SONYPI_BAT2_MAXRT       0xac
4060 #define SONYPI_BAT1_MAXTK       0xb0
4061 #define SONYPI_BAT1_FULL        0xb2
4062 #define SONYPI_BAT2_MAXTK       0xb8
4063 #define SONYPI_BAT2_FULL        0xba
4064 #define SONYPI_TEMP_STATUS      0xC1
4065
4066 struct sonypi_compat_s {
4067         struct fasync_struct    *fifo_async;
4068         struct kfifo            fifo;
4069         spinlock_t              fifo_lock;
4070         wait_queue_head_t       fifo_proc_list;
4071         atomic_t                open_count;
4072 };
4073 static struct sonypi_compat_s sonypi_compat = {
4074         .open_count = ATOMIC_INIT(0),
4075 };
4076
4077 static int sonypi_misc_fasync(int fd, struct file *filp, int on)
4078 {
4079         return fasync_helper(fd, filp, on, &sonypi_compat.fifo_async);
4080 }
4081
4082 static int sonypi_misc_release(struct inode *inode, struct file *file)
4083 {
4084         atomic_dec(&sonypi_compat.open_count);
4085         return 0;
4086 }
4087
4088 static int sonypi_misc_open(struct inode *inode, struct file *file)
4089 {
4090         /* Flush input queue on first open */
4091         unsigned long flags;
4092
4093         spin_lock_irqsave(&sonypi_compat.fifo_lock, flags);
4094
4095         if (atomic_inc_return(&sonypi_compat.open_count) == 1)
4096                 kfifo_reset(&sonypi_compat.fifo);
4097
4098         spin_unlock_irqrestore(&sonypi_compat.fifo_lock, flags);
4099
4100         return 0;
4101 }
4102
4103 static ssize_t sonypi_misc_read(struct file *file, char __user *buf,
4104                                 size_t count, loff_t *pos)
4105 {
4106         ssize_t ret;
4107         unsigned char c;
4108
4109         if ((kfifo_len(&sonypi_compat.fifo) == 0) &&
4110             (file->f_flags & O_NONBLOCK))
4111                 return -EAGAIN;
4112
4113         ret = wait_event_interruptible(sonypi_compat.fifo_proc_list,
4114                                        kfifo_len(&sonypi_compat.fifo) != 0);
4115         if (ret)
4116                 return ret;
4117
4118         while (ret < count &&
4119                (kfifo_out_locked(&sonypi_compat.fifo, &c, sizeof(c),
4120                           &sonypi_compat.fifo_lock) == sizeof(c))) {
4121                 if (put_user(c, buf++))
4122                         return -EFAULT;
4123                 ret++;
4124         }
4125
4126         if (ret > 0) {
4127                 struct inode *inode = file_inode(file);
4128                 inode->i_atime = current_time(inode);
4129         }
4130
4131         return ret;
4132 }
4133
4134 static __poll_t sonypi_misc_poll(struct file *file, poll_table *wait)
4135 {
4136         poll_wait(file, &sonypi_compat.fifo_proc_list, wait);
4137         if (kfifo_len(&sonypi_compat.fifo))
4138                 return EPOLLIN | EPOLLRDNORM;
4139         return 0;
4140 }
4141
4142 static int ec_read16(u8 addr, u16 *value)
4143 {
4144         u8 val_lb, val_hb;
4145         if (ec_read(addr, &val_lb))
4146                 return -1;
4147         if (ec_read(addr + 1, &val_hb))
4148                 return -1;
4149         *value = val_lb | (val_hb << 8);
4150         return 0;
4151 }
4152
4153 static long sonypi_misc_ioctl(struct file *fp, unsigned int cmd,
4154                                                         unsigned long arg)
4155 {
4156         int ret = 0;
4157         void __user *argp = (void __user *)arg;
4158         u8 val8;
4159         u16 val16;
4160         int value;
4161
4162         mutex_lock(&spic_dev.lock);
4163         switch (cmd) {
4164         case SONYPI_IOCGBRT:
4165                 if (sony_bl_props.dev == NULL) {
4166                         ret = -EIO;
4167                         break;
4168                 }
4169                 if (sony_nc_int_call(sony_nc_acpi_handle, "GBRT", NULL,
4170                                         &value)) {
4171                         ret = -EIO;
4172                         break;
4173                 }
4174                 val8 = ((value & 0xff) - 1) << 5;
4175                 if (copy_to_user(argp, &val8, sizeof(val8)))
4176                                 ret = -EFAULT;
4177                 break;
4178         case SONYPI_IOCSBRT:
4179                 if (sony_bl_props.dev == NULL) {
4180                         ret = -EIO;
4181                         break;
4182                 }
4183                 if (copy_from_user(&val8, argp, sizeof(val8))) {
4184                         ret = -EFAULT;
4185                         break;
4186                 }
4187                 value = (val8 >> 5) + 1;
4188                 if (sony_nc_int_call(sony_nc_acpi_handle, "SBRT", &value,
4189                                         NULL)) {
4190                         ret = -EIO;
4191                         break;
4192                 }
4193                 /* sync the backlight device status */
4194                 sony_bl_props.dev->props.brightness =
4195                     sony_backlight_get_brightness(sony_bl_props.dev);
4196                 break;
4197         case SONYPI_IOCGBAT1CAP:
4198                 if (ec_read16(SONYPI_BAT1_FULL, &val16)) {
4199                         ret = -EIO;
4200                         break;
4201                 }
4202                 if (copy_to_user(argp, &val16, sizeof(val16)))
4203                         ret = -EFAULT;
4204                 break;
4205         case SONYPI_IOCGBAT1REM:
4206                 if (ec_read16(SONYPI_BAT1_LEFT, &val16)) {
4207                         ret = -EIO;
4208                         break;
4209                 }
4210                 if (copy_to_user(argp, &val16, sizeof(val16)))
4211                         ret = -EFAULT;
4212                 break;
4213         case SONYPI_IOCGBAT2CAP:
4214                 if (ec_read16(SONYPI_BAT2_FULL, &val16)) {
4215                         ret = -EIO;
4216                         break;
4217                 }
4218                 if (copy_to_user(argp, &val16, sizeof(val16)))
4219                         ret = -EFAULT;
4220                 break;
4221         case SONYPI_IOCGBAT2REM:
4222                 if (ec_read16(SONYPI_BAT2_LEFT, &val16)) {
4223                         ret = -EIO;
4224                         break;
4225                 }
4226                 if (copy_to_user(argp, &val16, sizeof(val16)))
4227                         ret = -EFAULT;
4228                 break;
4229         case SONYPI_IOCGBATFLAGS:
4230                 if (ec_read(SONYPI_BAT_FLAGS, &val8)) {
4231                         ret = -EIO;
4232                         break;
4233                 }
4234                 val8 &= 0x07;
4235                 if (copy_to_user(argp, &val8, sizeof(val8)))
4236                         ret = -EFAULT;
4237                 break;
4238         case SONYPI_IOCGBLUE:
4239                 val8 = spic_dev.bluetooth_power;
4240                 if (copy_to_user(argp, &val8, sizeof(val8)))
4241                         ret = -EFAULT;
4242                 break;
4243         case SONYPI_IOCSBLUE:
4244                 if (copy_from_user(&val8, argp, sizeof(val8))) {
4245                         ret = -EFAULT;
4246                         break;
4247                 }
4248                 __sony_pic_set_bluetoothpower(val8);
4249                 break;
4250         /* FAN Controls */
4251         case SONYPI_IOCGFAN:
4252                 if (sony_pic_get_fanspeed(&val8)) {
4253                         ret = -EIO;
4254                         break;
4255                 }
4256                 if (copy_to_user(argp, &val8, sizeof(val8)))
4257                         ret = -EFAULT;
4258                 break;
4259         case SONYPI_IOCSFAN:
4260                 if (copy_from_user(&val8, argp, sizeof(val8))) {
4261                         ret = -EFAULT;
4262                         break;
4263                 }
4264                 if (sony_pic_set_fanspeed(val8))
4265                         ret = -EIO;
4266                 break;
4267         /* GET Temperature (useful under APM) */
4268         case SONYPI_IOCGTEMP:
4269                 if (ec_read(SONYPI_TEMP_STATUS, &val8)) {
4270                         ret = -EIO;
4271                         break;
4272                 }
4273                 if (copy_to_user(argp, &val8, sizeof(val8)))
4274                         ret = -EFAULT;
4275                 break;
4276         default:
4277                 ret = -EINVAL;
4278         }
4279         mutex_unlock(&spic_dev.lock);
4280         return ret;
4281 }
4282
4283 static const struct file_operations sonypi_misc_fops = {
4284         .owner          = THIS_MODULE,
4285         .read           = sonypi_misc_read,
4286         .poll           = sonypi_misc_poll,
4287         .open           = sonypi_misc_open,
4288         .release        = sonypi_misc_release,
4289         .fasync         = sonypi_misc_fasync,
4290         .unlocked_ioctl = sonypi_misc_ioctl,
4291         .llseek         = noop_llseek,
4292 };
4293
4294 static struct miscdevice sonypi_misc_device = {
4295         .minor          = MISC_DYNAMIC_MINOR,
4296         .name           = "sonypi",
4297         .fops           = &sonypi_misc_fops,
4298 };
4299
4300 static void sonypi_compat_report_event(u8 event)
4301 {
4302         kfifo_in_locked(&sonypi_compat.fifo, (unsigned char *)&event,
4303                         sizeof(event), &sonypi_compat.fifo_lock);
4304         kill_fasync(&sonypi_compat.fifo_async, SIGIO, POLL_IN);
4305         wake_up_interruptible(&sonypi_compat.fifo_proc_list);
4306 }
4307
4308 static int sonypi_compat_init(void)
4309 {
4310         int error;
4311
4312         spin_lock_init(&sonypi_compat.fifo_lock);
4313         error =
4314          kfifo_alloc(&sonypi_compat.fifo, SONY_LAPTOP_BUF_SIZE, GFP_KERNEL);
4315         if (error) {
4316                 pr_err("kfifo_alloc failed\n");
4317                 return error;
4318         }
4319
4320         init_waitqueue_head(&sonypi_compat.fifo_proc_list);
4321
4322         if (minor != -1)
4323                 sonypi_misc_device.minor = minor;
4324         error = misc_register(&sonypi_misc_device);
4325         if (error) {
4326                 pr_err("misc_register failed\n");
4327                 goto err_free_kfifo;
4328         }
4329         if (minor == -1)
4330                 pr_info("device allocated minor is %d\n",
4331                         sonypi_misc_device.minor);
4332
4333         return 0;
4334
4335 err_free_kfifo:
4336         kfifo_free(&sonypi_compat.fifo);
4337         return error;
4338 }
4339
4340 static void sonypi_compat_exit(void)
4341 {
4342         misc_deregister(&sonypi_misc_device);
4343         kfifo_free(&sonypi_compat.fifo);
4344 }
4345 #else
4346 static int sonypi_compat_init(void) { return 0; }
4347 static void sonypi_compat_exit(void) { }
4348 static void sonypi_compat_report_event(u8 event) { }
4349 #endif /* CONFIG_SONYPI_COMPAT */
4350
4351 /*
4352  * ACPI callbacks
4353  */
4354 static acpi_status
4355 sony_pic_read_possible_resource(struct acpi_resource *resource, void *context)
4356 {
4357         u32 i;
4358         struct sony_pic_dev *dev = (struct sony_pic_dev *)context;
4359
4360         switch (resource->type) {
4361         case ACPI_RESOURCE_TYPE_START_DEPENDENT:
4362                 {
4363                         /* start IO enumeration */
4364                         struct sony_pic_ioport *ioport = kzalloc(sizeof(*ioport), GFP_KERNEL);
4365                         if (!ioport)
4366                                 return AE_ERROR;
4367
4368                         list_add(&ioport->list, &dev->ioports);
4369                         return AE_OK;
4370                 }
4371
4372         case ACPI_RESOURCE_TYPE_END_DEPENDENT:
4373                 /* end IO enumeration */
4374                 return AE_OK;
4375
4376         case ACPI_RESOURCE_TYPE_IRQ:
4377                 {
4378                         struct acpi_resource_irq *p = &resource->data.irq;
4379                         struct sony_pic_irq *interrupt = NULL;
4380                         if (!p || !p->interrupt_count) {
4381                                 /*
4382                                  * IRQ descriptors may have no IRQ# bits set,
4383                                  * particularly those those w/ _STA disabled
4384                                  */
4385                                 dprintk("Blank IRQ resource\n");
4386                                 return AE_OK;
4387                         }
4388                         for (i = 0; i < p->interrupt_count; i++) {
4389                                 if (!p->interrupts[i]) {
4390                                         pr_warn("Invalid IRQ %d\n",
4391                                                 p->interrupts[i]);
4392                                         continue;
4393                                 }
4394                                 interrupt = kzalloc(sizeof(*interrupt),
4395                                                 GFP_KERNEL);
4396                                 if (!interrupt)
4397                                         return AE_ERROR;
4398
4399                                 list_add(&interrupt->list, &dev->interrupts);
4400                                 interrupt->irq.triggering = p->triggering;
4401                                 interrupt->irq.polarity = p->polarity;
4402                                 interrupt->irq.sharable = p->sharable;
4403                                 interrupt->irq.interrupt_count = 1;
4404                                 interrupt->irq.interrupts[0] = p->interrupts[i];
4405                         }
4406                         return AE_OK;
4407                 }
4408         case ACPI_RESOURCE_TYPE_IO:
4409                 {
4410                         struct acpi_resource_io *io = &resource->data.io;
4411                         struct sony_pic_ioport *ioport =
4412                                 list_first_entry(&dev->ioports, struct sony_pic_ioport, list);
4413                         if (!io) {
4414                                 dprintk("Blank IO resource\n");
4415                                 return AE_OK;
4416                         }
4417
4418                         if (!ioport->io1.minimum) {
4419                                 memcpy(&ioport->io1, io, sizeof(*io));
4420                                 dprintk("IO1 at 0x%.4x (0x%.2x)\n", ioport->io1.minimum,
4421                                                 ioport->io1.address_length);
4422                         }
4423                         else if (!ioport->io2.minimum) {
4424                                 memcpy(&ioport->io2, io, sizeof(*io));
4425                                 dprintk("IO2 at 0x%.4x (0x%.2x)\n", ioport->io2.minimum,
4426                                                 ioport->io2.address_length);
4427                         }
4428                         else {
4429                                 pr_err("Unknown SPIC Type, more than 2 IO Ports\n");
4430                                 return AE_ERROR;
4431                         }
4432                         return AE_OK;
4433                 }
4434
4435         case ACPI_RESOURCE_TYPE_END_TAG:
4436                 return AE_OK;
4437
4438         default:
4439                 dprintk("Resource %d isn't an IRQ nor an IO port\n",
4440                         resource->type);
4441                 return AE_CTRL_TERMINATE;
4442
4443         }
4444 }
4445
4446 static int sony_pic_possible_resources(struct acpi_device *device)
4447 {
4448         int result = 0;
4449         acpi_status status = AE_OK;
4450
4451         if (!device)
4452                 return -EINVAL;
4453
4454         /* get device status */
4455         /* see acpi_pci_link_get_current acpi_pci_link_get_possible */
4456         dprintk("Evaluating _STA\n");
4457         result = acpi_bus_get_status(device);
4458         if (result) {
4459                 pr_warn("Unable to read status\n");
4460                 goto end;
4461         }
4462
4463         if (!device->status.enabled)
4464                 dprintk("Device disabled\n");
4465         else
4466                 dprintk("Device enabled\n");
4467
4468         /*
4469          * Query and parse 'method'
4470          */
4471         dprintk("Evaluating %s\n", METHOD_NAME__PRS);
4472         status = acpi_walk_resources(device->handle, METHOD_NAME__PRS,
4473                         sony_pic_read_possible_resource, &spic_dev);
4474         if (ACPI_FAILURE(status)) {
4475                 pr_warn("Failure evaluating %s\n", METHOD_NAME__PRS);
4476                 result = -ENODEV;
4477         }
4478 end:
4479         return result;
4480 }
4481
4482 /*
4483  *  Disable the spic device by calling its _DIS method
4484  */
4485 static int sony_pic_disable(struct acpi_device *device)
4486 {
4487         acpi_status ret = acpi_evaluate_object(device->handle, "_DIS", NULL,
4488                                                NULL);
4489
4490         if (ACPI_FAILURE(ret) && ret != AE_NOT_FOUND)
4491                 return -ENXIO;
4492
4493         dprintk("Device disabled\n");
4494         return 0;
4495 }
4496
4497
4498 /*
4499  *  Based on drivers/acpi/pci_link.c:acpi_pci_link_set
4500  *
4501  *  Call _SRS to set current resources
4502  */
4503 static int sony_pic_enable(struct acpi_device *device,
4504                 struct sony_pic_ioport *ioport, struct sony_pic_irq *irq)
4505 {
4506         acpi_status status;
4507         int result = 0;
4508         /* Type 1 resource layout is:
4509          *    IO
4510          *    IO
4511          *    IRQNoFlags
4512          *    End
4513          *
4514          * Type 2 and 3 resource layout is:
4515          *    IO
4516          *    IRQNoFlags
4517          *    End
4518          */
4519         struct {
4520                 struct acpi_resource res1;
4521                 struct acpi_resource res2;
4522                 struct acpi_resource res3;
4523                 struct acpi_resource res4;
4524         } *resource;
4525         struct acpi_buffer buffer = { 0, NULL };
4526
4527         if (!ioport || !irq)
4528                 return -EINVAL;
4529
4530         /* init acpi_buffer */
4531         resource = kzalloc(sizeof(*resource) + 1, GFP_KERNEL);
4532         if (!resource)
4533                 return -ENOMEM;
4534
4535         buffer.length = sizeof(*resource) + 1;
4536         buffer.pointer = resource;
4537
4538         /* setup Type 1 resources */
4539         if (spic_dev.model == SONYPI_DEVICE_TYPE1) {
4540
4541                 /* setup io resources */
4542                 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
4543                 resource->res1.length = sizeof(struct acpi_resource);
4544                 memcpy(&resource->res1.data.io, &ioport->io1,
4545                                 sizeof(struct acpi_resource_io));
4546
4547                 resource->res2.type = ACPI_RESOURCE_TYPE_IO;
4548                 resource->res2.length = sizeof(struct acpi_resource);
4549                 memcpy(&resource->res2.data.io, &ioport->io2,
4550                                 sizeof(struct acpi_resource_io));
4551
4552                 /* setup irq resource */
4553                 resource->res3.type = ACPI_RESOURCE_TYPE_IRQ;
4554                 resource->res3.length = sizeof(struct acpi_resource);
4555                 memcpy(&resource->res3.data.irq, &irq->irq,
4556                                 sizeof(struct acpi_resource_irq));
4557                 /* we requested a shared irq */
4558                 resource->res3.data.irq.sharable = ACPI_SHARED;
4559
4560                 resource->res4.type = ACPI_RESOURCE_TYPE_END_TAG;
4561                 resource->res4.length = sizeof(struct acpi_resource);
4562         }
4563         /* setup Type 2/3 resources */
4564         else {
4565                 /* setup io resource */
4566                 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
4567                 resource->res1.length = sizeof(struct acpi_resource);
4568                 memcpy(&resource->res1.data.io, &ioport->io1,
4569                                 sizeof(struct acpi_resource_io));
4570
4571                 /* setup irq resource */
4572                 resource->res2.type = ACPI_RESOURCE_TYPE_IRQ;
4573                 resource->res2.length = sizeof(struct acpi_resource);
4574                 memcpy(&resource->res2.data.irq, &irq->irq,
4575                                 sizeof(struct acpi_resource_irq));
4576                 /* we requested a shared irq */
4577                 resource->res2.data.irq.sharable = ACPI_SHARED;
4578
4579                 resource->res3.type = ACPI_RESOURCE_TYPE_END_TAG;
4580                 resource->res3.length = sizeof(struct acpi_resource);
4581         }
4582
4583         /* Attempt to set the resource */
4584         dprintk("Evaluating _SRS\n");
4585         status = acpi_set_current_resources(device->handle, &buffer);
4586
4587         /* check for total failure */
4588         if (ACPI_FAILURE(status)) {
4589                 pr_err("Error evaluating _SRS\n");
4590                 result = -ENODEV;
4591                 goto end;
4592         }
4593
4594         /* Necessary device initializations calls (from sonypi) */
4595         sony_pic_call1(0x82);
4596         sony_pic_call2(0x81, 0xff);
4597         sony_pic_call1(compat ? 0x92 : 0x82);
4598
4599 end:
4600         kfree(resource);
4601         return result;
4602 }
4603
4604 /*****************
4605  *
4606  * ISR: some event is available
4607  *
4608  *****************/
4609 static irqreturn_t sony_pic_irq(int irq, void *dev_id)
4610 {
4611         int i, j;
4612         u8 ev = 0;
4613         u8 data_mask = 0;
4614         u8 device_event = 0;
4615
4616         struct sony_pic_dev *dev = (struct sony_pic_dev *) dev_id;
4617
4618         ev = inb_p(dev->cur_ioport->io1.minimum);
4619         if (dev->cur_ioport->io2.minimum)
4620                 data_mask = inb_p(dev->cur_ioport->io2.minimum);
4621         else
4622                 data_mask = inb_p(dev->cur_ioport->io1.minimum +
4623                                 dev->evport_offset);
4624
4625         dprintk("event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
4626                         ev, data_mask, dev->cur_ioport->io1.minimum,
4627                         dev->evport_offset);
4628
4629         if (ev == 0x00 || ev == 0xff)
4630                 return IRQ_HANDLED;
4631
4632         for (i = 0; dev->event_types[i].mask; i++) {
4633
4634                 if ((data_mask & dev->event_types[i].data) !=
4635                     dev->event_types[i].data)
4636                         continue;
4637
4638                 if (!(mask & dev->event_types[i].mask))
4639                         continue;
4640
4641                 for (j = 0; dev->event_types[i].events[j].event; j++) {
4642                         if (ev == dev->event_types[i].events[j].data) {
4643                                 device_event =
4644                                         dev->event_types[i].events[j].event;
4645                                 /* some events may require ignoring */
4646                                 if (!device_event)
4647                                         return IRQ_HANDLED;
4648                                 goto found;
4649                         }
4650                 }
4651         }
4652         /* Still not able to decode the event try to pass
4653          * it over to the minidriver
4654          */
4655         if (dev->handle_irq && dev->handle_irq(data_mask, ev) == 0)
4656                 return IRQ_HANDLED;
4657
4658         dprintk("unknown event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
4659                         ev, data_mask, dev->cur_ioport->io1.minimum,
4660                         dev->evport_offset);
4661         return IRQ_HANDLED;
4662
4663 found:
4664         sony_laptop_report_input_event(device_event);
4665         sonypi_compat_report_event(device_event);
4666         return IRQ_HANDLED;
4667 }
4668
4669 /*****************
4670  *
4671  *  ACPI driver
4672  *
4673  *****************/
4674 static int sony_pic_remove(struct acpi_device *device)
4675 {
4676         struct sony_pic_ioport *io, *tmp_io;
4677         struct sony_pic_irq *irq, *tmp_irq;
4678
4679         if (sony_pic_disable(device)) {
4680                 pr_err("Couldn't disable device\n");
4681                 return -ENXIO;
4682         }
4683
4684         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
4685         release_region(spic_dev.cur_ioport->io1.minimum,
4686                         spic_dev.cur_ioport->io1.address_length);
4687         if (spic_dev.cur_ioport->io2.minimum)
4688                 release_region(spic_dev.cur_ioport->io2.minimum,
4689                                 spic_dev.cur_ioport->io2.address_length);
4690
4691         sonypi_compat_exit();
4692
4693         sony_laptop_remove_input();
4694
4695         /* pf attrs */
4696         sysfs_remove_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
4697         sony_pf_remove();
4698
4699         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
4700                 list_del(&io->list);
4701                 kfree(io);
4702         }
4703         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
4704                 list_del(&irq->list);
4705                 kfree(irq);
4706         }
4707         spic_dev.cur_ioport = NULL;
4708         spic_dev.cur_irq = NULL;
4709
4710         dprintk(SONY_PIC_DRIVER_NAME " removed.\n");
4711         return 0;
4712 }
4713
4714 static int sony_pic_add(struct acpi_device *device)
4715 {
4716         int result;
4717         struct sony_pic_ioport *io, *tmp_io;
4718         struct sony_pic_irq *irq, *tmp_irq;
4719
4720         spic_dev.acpi_dev = device;
4721         strcpy(acpi_device_class(device), "sony/hotkey");
4722         sony_pic_detect_device_type(&spic_dev);
4723         mutex_init(&spic_dev.lock);
4724
4725         /* read _PRS resources */
4726         result = sony_pic_possible_resources(device);
4727         if (result) {
4728                 pr_err("Unable to read possible resources\n");
4729                 goto err_free_resources;
4730         }
4731
4732         /* setup input devices and helper fifo */
4733         result = sony_laptop_setup_input(device);
4734         if (result) {
4735                 pr_err("Unable to create input devices\n");
4736                 goto err_free_resources;
4737         }
4738
4739         result = sonypi_compat_init();
4740         if (result)
4741                 goto err_remove_input;
4742
4743         /* request io port */
4744         list_for_each_entry_reverse(io, &spic_dev.ioports, list) {
4745                 if (request_region(io->io1.minimum, io->io1.address_length,
4746                                         "Sony Programmable I/O Device")) {
4747                         dprintk("I/O port1: 0x%.4x (0x%.4x) + 0x%.2x\n",
4748                                         io->io1.minimum, io->io1.maximum,
4749                                         io->io1.address_length);
4750                         /* Type 1 have 2 ioports */
4751                         if (io->io2.minimum) {
4752                                 if (request_region(io->io2.minimum,
4753                                                 io->io2.address_length,
4754                                                 "Sony Programmable I/O Device")) {
4755                                         dprintk("I/O port2: 0x%.4x (0x%.4x) + 0x%.2x\n",
4756                                                         io->io2.minimum, io->io2.maximum,
4757                                                         io->io2.address_length);
4758                                         spic_dev.cur_ioport = io;
4759                                         break;
4760                                 }
4761                                 else {
4762                                         dprintk("Unable to get I/O port2: "
4763                                                         "0x%.4x (0x%.4x) + 0x%.2x\n",
4764                                                         io->io2.minimum, io->io2.maximum,
4765                                                         io->io2.address_length);
4766                                         release_region(io->io1.minimum,
4767                                                         io->io1.address_length);
4768                                 }
4769                         }
4770                         else {
4771                                 spic_dev.cur_ioport = io;
4772                                 break;
4773                         }
4774                 }
4775         }
4776         if (!spic_dev.cur_ioport) {
4777                 pr_err("Failed to request_region\n");
4778                 result = -ENODEV;
4779                 goto err_remove_compat;
4780         }
4781
4782         /* request IRQ */
4783         list_for_each_entry_reverse(irq, &spic_dev.interrupts, list) {
4784                 if (!request_irq(irq->irq.interrupts[0], sony_pic_irq,
4785                                         0, "sony-laptop", &spic_dev)) {
4786                         dprintk("IRQ: %d - triggering: %d - "
4787                                         "polarity: %d - shr: %d\n",
4788                                         irq->irq.interrupts[0],
4789                                         irq->irq.triggering,
4790                                         irq->irq.polarity,
4791                                         irq->irq.sharable);
4792                         spic_dev.cur_irq = irq;
4793                         break;
4794                 }
4795         }
4796         if (!spic_dev.cur_irq) {
4797                 pr_err("Failed to request_irq\n");
4798                 result = -ENODEV;
4799                 goto err_release_region;
4800         }
4801
4802         /* set resource status _SRS */
4803         result = sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
4804         if (result) {
4805                 pr_err("Couldn't enable device\n");
4806                 goto err_free_irq;
4807         }
4808
4809         spic_dev.bluetooth_power = -1;
4810         /* create device attributes */
4811         result = sony_pf_add();
4812         if (result)
4813                 goto err_disable_device;
4814
4815         result = sysfs_create_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
4816         if (result)
4817                 goto err_remove_pf;
4818
4819         pr_info("SPIC setup done.\n");
4820         return 0;
4821
4822 err_remove_pf:
4823         sony_pf_remove();
4824
4825 err_disable_device:
4826         sony_pic_disable(device);
4827
4828 err_free_irq:
4829         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
4830
4831 err_release_region:
4832         release_region(spic_dev.cur_ioport->io1.minimum,
4833                         spic_dev.cur_ioport->io1.address_length);
4834         if (spic_dev.cur_ioport->io2.minimum)
4835                 release_region(spic_dev.cur_ioport->io2.minimum,
4836                                 spic_dev.cur_ioport->io2.address_length);
4837
4838 err_remove_compat:
4839         sonypi_compat_exit();
4840
4841 err_remove_input:
4842         sony_laptop_remove_input();
4843
4844 err_free_resources:
4845         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
4846                 list_del(&io->list);
4847                 kfree(io);
4848         }
4849         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
4850                 list_del(&irq->list);
4851                 kfree(irq);
4852         }
4853         spic_dev.cur_ioport = NULL;
4854         spic_dev.cur_irq = NULL;
4855
4856         return result;
4857 }
4858
4859 #ifdef CONFIG_PM_SLEEP
4860 static int sony_pic_suspend(struct device *dev)
4861 {
4862         if (sony_pic_disable(to_acpi_device(dev)))
4863                 return -ENXIO;
4864         return 0;
4865 }
4866
4867 static int sony_pic_resume(struct device *dev)
4868 {
4869         sony_pic_enable(to_acpi_device(dev),
4870                         spic_dev.cur_ioport, spic_dev.cur_irq);
4871         return 0;
4872 }
4873 #endif
4874
4875 static SIMPLE_DEV_PM_OPS(sony_pic_pm, sony_pic_suspend, sony_pic_resume);
4876
4877 static const struct acpi_device_id sony_pic_device_ids[] = {
4878         {SONY_PIC_HID, 0},
4879         {"", 0},
4880 };
4881
4882 static struct acpi_driver sony_pic_driver = {
4883         .name = SONY_PIC_DRIVER_NAME,
4884         .class = SONY_PIC_CLASS,
4885         .ids = sony_pic_device_ids,
4886         .owner = THIS_MODULE,
4887         .ops = {
4888                 .add = sony_pic_add,
4889                 .remove = sony_pic_remove,
4890                 },
4891         .drv.pm = &sony_pic_pm,
4892 };
4893
4894 static const struct dmi_system_id sonypi_dmi_table[] __initconst = {
4895         {
4896                 .ident = "Sony Vaio",
4897                 .matches = {
4898                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
4899                         DMI_MATCH(DMI_PRODUCT_NAME, "PCG-"),
4900                 },
4901         },
4902         {
4903                 .ident = "Sony Vaio",
4904                 .matches = {
4905                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
4906                         DMI_MATCH(DMI_PRODUCT_NAME, "VGN-"),
4907                 },
4908         },
4909         { }
4910 };
4911
4912 static int __init sony_laptop_init(void)
4913 {
4914         int result;
4915
4916         if (!no_spic && dmi_check_system(sonypi_dmi_table)) {
4917                 result = acpi_bus_register_driver(&sony_pic_driver);
4918                 if (result) {
4919                         pr_err("Unable to register SPIC driver\n");
4920                         goto out;
4921                 }
4922                 spic_drv_registered = 1;
4923         }
4924
4925         result = acpi_bus_register_driver(&sony_nc_driver);
4926         if (result) {
4927                 pr_err("Unable to register SNC driver\n");
4928                 goto out_unregister_pic;
4929         }
4930
4931         return 0;
4932
4933 out_unregister_pic:
4934         if (spic_drv_registered)
4935                 acpi_bus_unregister_driver(&sony_pic_driver);
4936 out:
4937         return result;
4938 }
4939
4940 static void __exit sony_laptop_exit(void)
4941 {
4942         acpi_bus_unregister_driver(&sony_nc_driver);
4943         if (spic_drv_registered)
4944                 acpi_bus_unregister_driver(&sony_pic_driver);
4945 }
4946
4947 module_init(sony_laptop_init);
4948 module_exit(sony_laptop_exit);