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         ret = sony_call_snc_handle(handle, probe_base, &result);
1917         if (ret)
1918                 return ret;
1919
1920         if ((handle == 0x0137 && !(result & 0x02)) ||
1921                         !(result & 0x01)) {
1922                 dprintk("no backlight keyboard found\n");
1923                 return 0;
1924         }
1925
1926         kbdbl_ctl = kzalloc(sizeof(*kbdbl_ctl), GFP_KERNEL);
1927         if (!kbdbl_ctl)
1928                 return -ENOMEM;
1929
1930         kbdbl_ctl->mode = kbd_backlight;
1931         kbdbl_ctl->timeout = kbd_backlight_timeout;
1932         kbdbl_ctl->handle = handle;
1933         kbdbl_ctl->base = ctl_base;
1934         /* Some models do not allow timeout control */
1935         kbdbl_ctl->has_timeout = handle != 0x0153;
1936
1937         sysfs_attr_init(&kbdbl_ctl->mode_attr.attr);
1938         kbdbl_ctl->mode_attr.attr.name = "kbd_backlight";
1939         kbdbl_ctl->mode_attr.attr.mode = S_IRUGO | S_IWUSR;
1940         kbdbl_ctl->mode_attr.show = sony_nc_kbd_backlight_mode_show;
1941         kbdbl_ctl->mode_attr.store = sony_nc_kbd_backlight_mode_store;
1942
1943         ret = device_create_file(&pd->dev, &kbdbl_ctl->mode_attr);
1944         if (ret)
1945                 goto outkzalloc;
1946
1947         __sony_nc_kbd_backlight_mode_set(kbdbl_ctl->mode);
1948
1949         if (kbdbl_ctl->has_timeout) {
1950                 sysfs_attr_init(&kbdbl_ctl->timeout_attr.attr);
1951                 kbdbl_ctl->timeout_attr.attr.name = "kbd_backlight_timeout";
1952                 kbdbl_ctl->timeout_attr.attr.mode = S_IRUGO | S_IWUSR;
1953                 kbdbl_ctl->timeout_attr.show =
1954                         sony_nc_kbd_backlight_timeout_show;
1955                 kbdbl_ctl->timeout_attr.store =
1956                         sony_nc_kbd_backlight_timeout_store;
1957
1958                 ret = device_create_file(&pd->dev, &kbdbl_ctl->timeout_attr);
1959                 if (ret)
1960                         goto outmode;
1961
1962                 __sony_nc_kbd_backlight_timeout_set(kbdbl_ctl->timeout);
1963         }
1964
1965
1966         return 0;
1967
1968 outmode:
1969         device_remove_file(&pd->dev, &kbdbl_ctl->mode_attr);
1970 outkzalloc:
1971         kfree(kbdbl_ctl);
1972         kbdbl_ctl = NULL;
1973         return ret;
1974 }
1975
1976 static void sony_nc_kbd_backlight_cleanup(struct platform_device *pd,
1977                 unsigned int handle)
1978 {
1979         if (kbdbl_ctl && handle == kbdbl_ctl->handle) {
1980                 device_remove_file(&pd->dev, &kbdbl_ctl->mode_attr);
1981                 if (kbdbl_ctl->has_timeout)
1982                         device_remove_file(&pd->dev, &kbdbl_ctl->timeout_attr);
1983                 kfree(kbdbl_ctl);
1984                 kbdbl_ctl = NULL;
1985         }
1986 }
1987
1988 struct battery_care_control {
1989         struct device_attribute attrs[2];
1990         unsigned int handle;
1991 };
1992 static struct battery_care_control *bcare_ctl;
1993
1994 static ssize_t sony_nc_battery_care_limit_store(struct device *dev,
1995                 struct device_attribute *attr,
1996                 const char *buffer, size_t count)
1997 {
1998         unsigned int result, cmd;
1999         unsigned long value;
2000
2001         if (count > 31)
2002                 return -EINVAL;
2003
2004         if (kstrtoul(buffer, 10, &value))
2005                 return -EINVAL;
2006
2007         /*  limit values (2 bits):
2008          *  00 - none
2009          *  01 - 80%
2010          *  10 - 50%
2011          *  11 - 100%
2012          *
2013          *  bit 0: 0 disable BCL, 1 enable BCL
2014          *  bit 1: 1 tell to store the battery limit (see bits 6,7) too
2015          *  bits 2,3: reserved
2016          *  bits 4,5: store the limit into the EC
2017          *  bits 6,7: store the limit into the battery
2018          */
2019         cmd = 0;
2020
2021         if (value > 0) {
2022                 if (value <= 50)
2023                         cmd = 0x20;
2024
2025                 else if (value <= 80)
2026                         cmd = 0x10;
2027
2028                 else if (value <= 100)
2029                         cmd = 0x30;
2030
2031                 else
2032                         return -EINVAL;
2033
2034                 /*
2035                  * handle 0x0115 should allow storing on battery too;
2036                  * handle 0x0136 same as 0x0115 + health status;
2037                  * handle 0x013f, same as 0x0136 but no storing on the battery
2038                  */
2039                 if (bcare_ctl->handle != 0x013f)
2040                         cmd = cmd | (cmd << 2);
2041
2042                 cmd = (cmd | 0x1) << 0x10;
2043         }
2044
2045         if (sony_call_snc_handle(bcare_ctl->handle, cmd | 0x0100, &result))
2046                 return -EIO;
2047
2048         return count;
2049 }
2050
2051 static ssize_t sony_nc_battery_care_limit_show(struct device *dev,
2052                 struct device_attribute *attr, char *buffer)
2053 {
2054         unsigned int result, status;
2055
2056         if (sony_call_snc_handle(bcare_ctl->handle, 0x0000, &result))
2057                 return -EIO;
2058
2059         status = (result & 0x01) ? ((result & 0x30) >> 0x04) : 0;
2060         switch (status) {
2061         case 1:
2062                 status = 80;
2063                 break;
2064         case 2:
2065                 status = 50;
2066                 break;
2067         case 3:
2068                 status = 100;
2069                 break;
2070         default:
2071                 status = 0;
2072                 break;
2073         }
2074
2075         return snprintf(buffer, PAGE_SIZE, "%d\n", status);
2076 }
2077
2078 static ssize_t sony_nc_battery_care_health_show(struct device *dev,
2079                 struct device_attribute *attr, char *buffer)
2080 {
2081         ssize_t count = 0;
2082         unsigned int health;
2083
2084         if (sony_call_snc_handle(bcare_ctl->handle, 0x0200, &health))
2085                 return -EIO;
2086
2087         count = snprintf(buffer, PAGE_SIZE, "%d\n", health & 0xff);
2088
2089         return count;
2090 }
2091
2092 static int sony_nc_battery_care_setup(struct platform_device *pd,
2093                 unsigned int handle)
2094 {
2095         int ret = 0;
2096
2097         bcare_ctl = kzalloc(sizeof(struct battery_care_control), GFP_KERNEL);
2098         if (!bcare_ctl)
2099                 return -ENOMEM;
2100
2101         bcare_ctl->handle = handle;
2102
2103         sysfs_attr_init(&bcare_ctl->attrs[0].attr);
2104         bcare_ctl->attrs[0].attr.name = "battery_care_limiter";
2105         bcare_ctl->attrs[0].attr.mode = S_IRUGO | S_IWUSR;
2106         bcare_ctl->attrs[0].show = sony_nc_battery_care_limit_show;
2107         bcare_ctl->attrs[0].store = sony_nc_battery_care_limit_store;
2108
2109         ret = device_create_file(&pd->dev, &bcare_ctl->attrs[0]);
2110         if (ret)
2111                 goto outkzalloc;
2112
2113         /* 0x0115 is for models with no health reporting capability */
2114         if (handle == 0x0115)
2115                 return 0;
2116
2117         sysfs_attr_init(&bcare_ctl->attrs[1].attr);
2118         bcare_ctl->attrs[1].attr.name = "battery_care_health";
2119         bcare_ctl->attrs[1].attr.mode = S_IRUGO;
2120         bcare_ctl->attrs[1].show = sony_nc_battery_care_health_show;
2121
2122         ret = device_create_file(&pd->dev, &bcare_ctl->attrs[1]);
2123         if (ret)
2124                 goto outlimiter;
2125
2126         return 0;
2127
2128 outlimiter:
2129         device_remove_file(&pd->dev, &bcare_ctl->attrs[0]);
2130
2131 outkzalloc:
2132         kfree(bcare_ctl);
2133         bcare_ctl = NULL;
2134
2135         return ret;
2136 }
2137
2138 static void sony_nc_battery_care_cleanup(struct platform_device *pd)
2139 {
2140         if (bcare_ctl) {
2141                 device_remove_file(&pd->dev, &bcare_ctl->attrs[0]);
2142                 if (bcare_ctl->handle != 0x0115)
2143                         device_remove_file(&pd->dev, &bcare_ctl->attrs[1]);
2144
2145                 kfree(bcare_ctl);
2146                 bcare_ctl = NULL;
2147         }
2148 }
2149
2150 struct snc_thermal_ctrl {
2151         unsigned int mode;
2152         unsigned int profiles;
2153         struct device_attribute mode_attr;
2154         struct device_attribute profiles_attr;
2155 };
2156 static struct snc_thermal_ctrl *th_handle;
2157
2158 #define THM_PROFILE_MAX 3
2159 static const char * const snc_thermal_profiles[] = {
2160         "balanced",
2161         "silent",
2162         "performance"
2163 };
2164
2165 static int sony_nc_thermal_mode_set(unsigned short mode)
2166 {
2167         unsigned int result;
2168
2169         /* the thermal profile seems to be a two bit bitmask:
2170          * lsb -> silent
2171          * msb -> performance
2172          * no bit set is the normal operation and is always valid
2173          * Some vaio models only have "balanced" and "performance"
2174          */
2175         if ((mode && !(th_handle->profiles & mode)) || mode >= THM_PROFILE_MAX)
2176                 return -EINVAL;
2177
2178         if (sony_call_snc_handle(0x0122, mode << 0x10 | 0x0200, &result))
2179                 return -EIO;
2180
2181         th_handle->mode = mode;
2182
2183         return 0;
2184 }
2185
2186 static int sony_nc_thermal_mode_get(void)
2187 {
2188         unsigned int result;
2189
2190         if (sony_call_snc_handle(0x0122, 0x0100, &result))
2191                 return -EIO;
2192
2193         return result & 0xff;
2194 }
2195
2196 static ssize_t sony_nc_thermal_profiles_show(struct device *dev,
2197                 struct device_attribute *attr, char *buffer)
2198 {
2199         short cnt;
2200         size_t idx = 0;
2201
2202         for (cnt = 0; cnt < THM_PROFILE_MAX; cnt++) {
2203                 if (!cnt || (th_handle->profiles & cnt))
2204                         idx += snprintf(buffer + idx, PAGE_SIZE - idx, "%s ",
2205                                         snc_thermal_profiles[cnt]);
2206         }
2207         idx += snprintf(buffer + idx, PAGE_SIZE - idx, "\n");
2208
2209         return idx;
2210 }
2211
2212 static ssize_t sony_nc_thermal_mode_store(struct device *dev,
2213                 struct device_attribute *attr,
2214                 const char *buffer, size_t count)
2215 {
2216         unsigned short cmd;
2217         size_t len = count;
2218
2219         if (count == 0)
2220                 return -EINVAL;
2221
2222         /* skip the newline if present */
2223         if (buffer[len - 1] == '\n')
2224                 len--;
2225
2226         for (cmd = 0; cmd < THM_PROFILE_MAX; cmd++)
2227                 if (strncmp(buffer, snc_thermal_profiles[cmd], len) == 0)
2228                         break;
2229
2230         if (sony_nc_thermal_mode_set(cmd))
2231                 return -EIO;
2232
2233         return count;
2234 }
2235
2236 static ssize_t sony_nc_thermal_mode_show(struct device *dev,
2237                 struct device_attribute *attr, char *buffer)
2238 {
2239         ssize_t count = 0;
2240         int mode = sony_nc_thermal_mode_get();
2241
2242         if (mode < 0)
2243                 return mode;
2244
2245         count = snprintf(buffer, PAGE_SIZE, "%s\n", snc_thermal_profiles[mode]);
2246
2247         return count;
2248 }
2249
2250 static int sony_nc_thermal_setup(struct platform_device *pd)
2251 {
2252         int ret = 0;
2253         th_handle = kzalloc(sizeof(struct snc_thermal_ctrl), GFP_KERNEL);
2254         if (!th_handle)
2255                 return -ENOMEM;
2256
2257         ret = sony_call_snc_handle(0x0122, 0x0000, &th_handle->profiles);
2258         if (ret) {
2259                 pr_warn("couldn't to read the thermal profiles\n");
2260                 goto outkzalloc;
2261         }
2262
2263         ret = sony_nc_thermal_mode_get();
2264         if (ret < 0) {
2265                 pr_warn("couldn't to read the current thermal profile");
2266                 goto outkzalloc;
2267         }
2268         th_handle->mode = ret;
2269
2270         sysfs_attr_init(&th_handle->profiles_attr.attr);
2271         th_handle->profiles_attr.attr.name = "thermal_profiles";
2272         th_handle->profiles_attr.attr.mode = S_IRUGO;
2273         th_handle->profiles_attr.show = sony_nc_thermal_profiles_show;
2274
2275         sysfs_attr_init(&th_handle->mode_attr.attr);
2276         th_handle->mode_attr.attr.name = "thermal_control";
2277         th_handle->mode_attr.attr.mode = S_IRUGO | S_IWUSR;
2278         th_handle->mode_attr.show = sony_nc_thermal_mode_show;
2279         th_handle->mode_attr.store = sony_nc_thermal_mode_store;
2280
2281         ret = device_create_file(&pd->dev, &th_handle->profiles_attr);
2282         if (ret)
2283                 goto outkzalloc;
2284
2285         ret = device_create_file(&pd->dev, &th_handle->mode_attr);
2286         if (ret)
2287                 goto outprofiles;
2288
2289         return 0;
2290
2291 outprofiles:
2292         device_remove_file(&pd->dev, &th_handle->profiles_attr);
2293 outkzalloc:
2294         kfree(th_handle);
2295         th_handle = NULL;
2296         return ret;
2297 }
2298
2299 static void sony_nc_thermal_cleanup(struct platform_device *pd)
2300 {
2301         if (th_handle) {
2302                 device_remove_file(&pd->dev, &th_handle->profiles_attr);
2303                 device_remove_file(&pd->dev, &th_handle->mode_attr);
2304                 kfree(th_handle);
2305                 th_handle = NULL;
2306         }
2307 }
2308
2309 #ifdef CONFIG_PM_SLEEP
2310 static void sony_nc_thermal_resume(void)
2311 {
2312         unsigned int status = sony_nc_thermal_mode_get();
2313
2314         if (status != th_handle->mode)
2315                 sony_nc_thermal_mode_set(th_handle->mode);
2316 }
2317 #endif
2318
2319 /* resume on LID open */
2320 #define LID_RESUME_S5   0
2321 #define LID_RESUME_S4   1
2322 #define LID_RESUME_S3   2
2323 #define LID_RESUME_MAX  3
2324 struct snc_lid_resume_control {
2325         struct device_attribute attrs[LID_RESUME_MAX];
2326         unsigned int status;
2327         int handle;
2328 };
2329 static struct snc_lid_resume_control *lid_ctl;
2330
2331 static ssize_t sony_nc_lid_resume_store(struct device *dev,
2332                                         struct device_attribute *attr,
2333                                         const char *buffer, size_t count)
2334 {
2335         unsigned int result;
2336         unsigned long value;
2337         unsigned int pos = LID_RESUME_S5;
2338         if (count > 31)
2339                 return -EINVAL;
2340
2341         if (kstrtoul(buffer, 10, &value) || value > 1)
2342                 return -EINVAL;
2343
2344         /* the value we have to write to SNC is a bitmask:
2345          * +--------------+
2346          * | S3 | S4 | S5 |
2347          * +--------------+
2348          *   2    1    0
2349          */
2350         while (pos < LID_RESUME_MAX) {
2351                 if (&lid_ctl->attrs[pos].attr == &attr->attr)
2352                         break;
2353                 pos++;
2354         }
2355         if (pos == LID_RESUME_MAX)
2356                 return -EINVAL;
2357
2358         if (value)
2359                 value = lid_ctl->status | (1 << pos);
2360         else
2361                 value = lid_ctl->status & ~(1 << pos);
2362
2363         if (sony_call_snc_handle(lid_ctl->handle, value << 0x10 | 0x0100,
2364                                 &result))
2365                 return -EIO;
2366
2367         lid_ctl->status = value;
2368
2369         return count;
2370 }
2371
2372 static ssize_t sony_nc_lid_resume_show(struct device *dev,
2373                                         struct device_attribute *attr,
2374                                         char *buffer)
2375 {
2376         unsigned int pos = LID_RESUME_S5;
2377
2378         while (pos < LID_RESUME_MAX) {
2379                 if (&lid_ctl->attrs[pos].attr == &attr->attr)
2380                         return snprintf(buffer, PAGE_SIZE, "%d\n",
2381                                         (lid_ctl->status >> pos) & 0x01);
2382                 pos++;
2383         }
2384         return -EINVAL;
2385 }
2386
2387 static int sony_nc_lid_resume_setup(struct platform_device *pd,
2388                                         unsigned int handle)
2389 {
2390         unsigned int result;
2391         int i;
2392
2393         if (sony_call_snc_handle(handle, 0x0000, &result))
2394                 return -EIO;
2395
2396         lid_ctl = kzalloc(sizeof(struct snc_lid_resume_control), GFP_KERNEL);
2397         if (!lid_ctl)
2398                 return -ENOMEM;
2399
2400         lid_ctl->status = result & 0x7;
2401         lid_ctl->handle = handle;
2402
2403         sysfs_attr_init(&lid_ctl->attrs[0].attr);
2404         lid_ctl->attrs[LID_RESUME_S5].attr.name = "lid_resume_S5";
2405         lid_ctl->attrs[LID_RESUME_S5].attr.mode = S_IRUGO | S_IWUSR;
2406         lid_ctl->attrs[LID_RESUME_S5].show = sony_nc_lid_resume_show;
2407         lid_ctl->attrs[LID_RESUME_S5].store = sony_nc_lid_resume_store;
2408
2409         if (handle == 0x0119) {
2410                 sysfs_attr_init(&lid_ctl->attrs[1].attr);
2411                 lid_ctl->attrs[LID_RESUME_S4].attr.name = "lid_resume_S4";
2412                 lid_ctl->attrs[LID_RESUME_S4].attr.mode = S_IRUGO | S_IWUSR;
2413                 lid_ctl->attrs[LID_RESUME_S4].show = sony_nc_lid_resume_show;
2414                 lid_ctl->attrs[LID_RESUME_S4].store = sony_nc_lid_resume_store;
2415
2416                 sysfs_attr_init(&lid_ctl->attrs[2].attr);
2417                 lid_ctl->attrs[LID_RESUME_S3].attr.name = "lid_resume_S3";
2418                 lid_ctl->attrs[LID_RESUME_S3].attr.mode = S_IRUGO | S_IWUSR;
2419                 lid_ctl->attrs[LID_RESUME_S3].show = sony_nc_lid_resume_show;
2420                 lid_ctl->attrs[LID_RESUME_S3].store = sony_nc_lid_resume_store;
2421         }
2422         for (i = 0; i < LID_RESUME_MAX &&
2423                         lid_ctl->attrs[i].attr.name; i++) {
2424                 result = device_create_file(&pd->dev, &lid_ctl->attrs[i]);
2425                 if (result)
2426                         goto liderror;
2427         }
2428
2429         return 0;
2430
2431 liderror:
2432         for (i--; i >= 0; i--)
2433                 device_remove_file(&pd->dev, &lid_ctl->attrs[i]);
2434
2435         kfree(lid_ctl);
2436         lid_ctl = NULL;
2437
2438         return result;
2439 }
2440
2441 static void sony_nc_lid_resume_cleanup(struct platform_device *pd)
2442 {
2443         int i;
2444
2445         if (lid_ctl) {
2446                 for (i = 0; i < LID_RESUME_MAX; i++) {
2447                         if (!lid_ctl->attrs[i].attr.name)
2448                                 break;
2449
2450                         device_remove_file(&pd->dev, &lid_ctl->attrs[i]);
2451                 }
2452
2453                 kfree(lid_ctl);
2454                 lid_ctl = NULL;
2455         }
2456 }
2457
2458 /* GFX Switch position */
2459 enum gfx_switch {
2460         SPEED,
2461         STAMINA,
2462         AUTO
2463 };
2464 struct snc_gfx_switch_control {
2465         struct device_attribute attr;
2466         unsigned int handle;
2467 };
2468 static struct snc_gfx_switch_control *gfxs_ctl;
2469
2470 /* returns 0 for speed, 1 for stamina */
2471 static int __sony_nc_gfx_switch_status_get(void)
2472 {
2473         unsigned int result;
2474
2475         if (sony_call_snc_handle(gfxs_ctl->handle,
2476                                 gfxs_ctl->handle == 0x015B ? 0x0000 : 0x0100,
2477                                 &result))
2478                 return -EIO;
2479
2480         switch (gfxs_ctl->handle) {
2481         case 0x0146:
2482                 /* 1: discrete GFX (speed)
2483                  * 0: integrated GFX (stamina)
2484                  */
2485                 return result & 0x1 ? SPEED : STAMINA;
2486                 break;
2487         case 0x015B:
2488                 /* 0: discrete GFX (speed)
2489                  * 1: integrated GFX (stamina)
2490                  */
2491                 return result & 0x1 ? STAMINA : SPEED;
2492                 break;
2493         case 0x0128:
2494                 /* it's a more elaborated bitmask, for now:
2495                  * 2: integrated GFX (stamina)
2496                  * 0: discrete GFX (speed)
2497                  */
2498                 dprintk("GFX Status: 0x%x\n", result);
2499                 return result & 0x80 ? AUTO :
2500                         result & 0x02 ? STAMINA : SPEED;
2501                 break;
2502         }
2503         return -EINVAL;
2504 }
2505
2506 static ssize_t sony_nc_gfx_switch_status_show(struct device *dev,
2507                                        struct device_attribute *attr,
2508                                        char *buffer)
2509 {
2510         int pos = __sony_nc_gfx_switch_status_get();
2511
2512         if (pos < 0)
2513                 return pos;
2514
2515         return snprintf(buffer, PAGE_SIZE, "%s\n",
2516                                         pos == SPEED ? "speed" :
2517                                         pos == STAMINA ? "stamina" :
2518                                         pos == AUTO ? "auto" : "unknown");
2519 }
2520
2521 static int sony_nc_gfx_switch_setup(struct platform_device *pd,
2522                 unsigned int handle)
2523 {
2524         unsigned int result;
2525
2526         gfxs_ctl = kzalloc(sizeof(struct snc_gfx_switch_control), GFP_KERNEL);
2527         if (!gfxs_ctl)
2528                 return -ENOMEM;
2529
2530         gfxs_ctl->handle = handle;
2531
2532         sysfs_attr_init(&gfxs_ctl->attr.attr);
2533         gfxs_ctl->attr.attr.name = "gfx_switch_status";
2534         gfxs_ctl->attr.attr.mode = S_IRUGO;
2535         gfxs_ctl->attr.show = sony_nc_gfx_switch_status_show;
2536
2537         result = device_create_file(&pd->dev, &gfxs_ctl->attr);
2538         if (result)
2539                 goto gfxerror;
2540
2541         return 0;
2542
2543 gfxerror:
2544         kfree(gfxs_ctl);
2545         gfxs_ctl = NULL;
2546
2547         return result;
2548 }
2549
2550 static void sony_nc_gfx_switch_cleanup(struct platform_device *pd)
2551 {
2552         if (gfxs_ctl) {
2553                 device_remove_file(&pd->dev, &gfxs_ctl->attr);
2554
2555                 kfree(gfxs_ctl);
2556                 gfxs_ctl = NULL;
2557         }
2558 }
2559
2560 /* High speed charging function */
2561 static struct device_attribute *hsc_handle;
2562
2563 static ssize_t sony_nc_highspeed_charging_store(struct device *dev,
2564                 struct device_attribute *attr,
2565                 const char *buffer, size_t count)
2566 {
2567         unsigned int result;
2568         unsigned long value;
2569
2570         if (count > 31)
2571                 return -EINVAL;
2572
2573         if (kstrtoul(buffer, 10, &value) || value > 1)
2574                 return -EINVAL;
2575
2576         if (sony_call_snc_handle(0x0131, value << 0x10 | 0x0200, &result))
2577                 return -EIO;
2578
2579         return count;
2580 }
2581
2582 static ssize_t sony_nc_highspeed_charging_show(struct device *dev,
2583                 struct device_attribute *attr, char *buffer)
2584 {
2585         unsigned int result;
2586
2587         if (sony_call_snc_handle(0x0131, 0x0100, &result))
2588                 return -EIO;
2589
2590         return snprintf(buffer, PAGE_SIZE, "%d\n", result & 0x01);
2591 }
2592
2593 static int sony_nc_highspeed_charging_setup(struct platform_device *pd)
2594 {
2595         unsigned int result;
2596
2597         if (sony_call_snc_handle(0x0131, 0x0000, &result) || !(result & 0x01)) {
2598                 /* some models advertise the handle but have no implementation
2599                  * for it
2600                  */
2601                 pr_info("No High Speed Charging capability found\n");
2602                 return 0;
2603         }
2604
2605         hsc_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2606         if (!hsc_handle)
2607                 return -ENOMEM;
2608
2609         sysfs_attr_init(&hsc_handle->attr);
2610         hsc_handle->attr.name = "battery_highspeed_charging";
2611         hsc_handle->attr.mode = S_IRUGO | S_IWUSR;
2612         hsc_handle->show = sony_nc_highspeed_charging_show;
2613         hsc_handle->store = sony_nc_highspeed_charging_store;
2614
2615         result = device_create_file(&pd->dev, hsc_handle);
2616         if (result) {
2617                 kfree(hsc_handle);
2618                 hsc_handle = NULL;
2619                 return result;
2620         }
2621
2622         return 0;
2623 }
2624
2625 static void sony_nc_highspeed_charging_cleanup(struct platform_device *pd)
2626 {
2627         if (hsc_handle) {
2628                 device_remove_file(&pd->dev, hsc_handle);
2629                 kfree(hsc_handle);
2630                 hsc_handle = NULL;
2631         }
2632 }
2633
2634 /* low battery function */
2635 static struct device_attribute *lowbatt_handle;
2636
2637 static ssize_t sony_nc_lowbatt_store(struct device *dev,
2638                 struct device_attribute *attr,
2639                 const char *buffer, size_t count)
2640 {
2641         unsigned int result;
2642         unsigned long value;
2643
2644         if (count > 31)
2645                 return -EINVAL;
2646
2647         if (kstrtoul(buffer, 10, &value) || value > 1)
2648                 return -EINVAL;
2649
2650         if (sony_call_snc_handle(0x0121, value << 8, &result))
2651                 return -EIO;
2652
2653         return count;
2654 }
2655
2656 static ssize_t sony_nc_lowbatt_show(struct device *dev,
2657                 struct device_attribute *attr, char *buffer)
2658 {
2659         unsigned int result;
2660
2661         if (sony_call_snc_handle(0x0121, 0x0200, &result))
2662                 return -EIO;
2663
2664         return snprintf(buffer, PAGE_SIZE, "%d\n", result & 1);
2665 }
2666
2667 static int sony_nc_lowbatt_setup(struct platform_device *pd)
2668 {
2669         unsigned int result;
2670
2671         lowbatt_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2672         if (!lowbatt_handle)
2673                 return -ENOMEM;
2674
2675         sysfs_attr_init(&lowbatt_handle->attr);
2676         lowbatt_handle->attr.name = "lowbatt_hibernate";
2677         lowbatt_handle->attr.mode = S_IRUGO | S_IWUSR;
2678         lowbatt_handle->show = sony_nc_lowbatt_show;
2679         lowbatt_handle->store = sony_nc_lowbatt_store;
2680
2681         result = device_create_file(&pd->dev, lowbatt_handle);
2682         if (result) {
2683                 kfree(lowbatt_handle);
2684                 lowbatt_handle = NULL;
2685                 return result;
2686         }
2687
2688         return 0;
2689 }
2690
2691 static void sony_nc_lowbatt_cleanup(struct platform_device *pd)
2692 {
2693         if (lowbatt_handle) {
2694                 device_remove_file(&pd->dev, lowbatt_handle);
2695                 kfree(lowbatt_handle);
2696                 lowbatt_handle = NULL;
2697         }
2698 }
2699
2700 /* fan speed function */
2701 static struct device_attribute *fan_handle, *hsf_handle;
2702
2703 static ssize_t sony_nc_hsfan_store(struct device *dev,
2704                 struct device_attribute *attr,
2705                 const char *buffer, size_t count)
2706 {
2707         unsigned int result;
2708         unsigned long value;
2709
2710         if (count > 31)
2711                 return -EINVAL;
2712
2713         if (kstrtoul(buffer, 10, &value) || value > 1)
2714                 return -EINVAL;
2715
2716         if (sony_call_snc_handle(0x0149, value << 0x10 | 0x0200, &result))
2717                 return -EIO;
2718
2719         return count;
2720 }
2721
2722 static ssize_t sony_nc_hsfan_show(struct device *dev,
2723                 struct device_attribute *attr, char *buffer)
2724 {
2725         unsigned int result;
2726
2727         if (sony_call_snc_handle(0x0149, 0x0100, &result))
2728                 return -EIO;
2729
2730         return snprintf(buffer, PAGE_SIZE, "%d\n", result & 0x01);
2731 }
2732
2733 static ssize_t sony_nc_fanspeed_show(struct device *dev,
2734                 struct device_attribute *attr, char *buffer)
2735 {
2736         unsigned int result;
2737
2738         if (sony_call_snc_handle(0x0149, 0x0300, &result))
2739                 return -EIO;
2740
2741         return snprintf(buffer, PAGE_SIZE, "%d\n", result & 0xff);
2742 }
2743
2744 static int sony_nc_fanspeed_setup(struct platform_device *pd)
2745 {
2746         unsigned int result;
2747
2748         fan_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2749         if (!fan_handle)
2750                 return -ENOMEM;
2751
2752         hsf_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2753         if (!hsf_handle) {
2754                 result = -ENOMEM;
2755                 goto out_hsf_handle_alloc;
2756         }
2757
2758         sysfs_attr_init(&fan_handle->attr);
2759         fan_handle->attr.name = "fanspeed";
2760         fan_handle->attr.mode = S_IRUGO;
2761         fan_handle->show = sony_nc_fanspeed_show;
2762         fan_handle->store = NULL;
2763
2764         sysfs_attr_init(&hsf_handle->attr);
2765         hsf_handle->attr.name = "fan_forced";
2766         hsf_handle->attr.mode = S_IRUGO | S_IWUSR;
2767         hsf_handle->show = sony_nc_hsfan_show;
2768         hsf_handle->store = sony_nc_hsfan_store;
2769
2770         result = device_create_file(&pd->dev, fan_handle);
2771         if (result)
2772                 goto out_fan_handle;
2773
2774         result = device_create_file(&pd->dev, hsf_handle);
2775         if (result)
2776                 goto out_hsf_handle;
2777
2778         return 0;
2779
2780 out_hsf_handle:
2781         device_remove_file(&pd->dev, fan_handle);
2782
2783 out_fan_handle:
2784         kfree(hsf_handle);
2785         hsf_handle = NULL;
2786
2787 out_hsf_handle_alloc:
2788         kfree(fan_handle);
2789         fan_handle = NULL;
2790         return result;
2791 }
2792
2793 static void sony_nc_fanspeed_cleanup(struct platform_device *pd)
2794 {
2795         if (fan_handle) {
2796                 device_remove_file(&pd->dev, fan_handle);
2797                 kfree(fan_handle);
2798                 fan_handle = NULL;
2799         }
2800         if (hsf_handle) {
2801                 device_remove_file(&pd->dev, hsf_handle);
2802                 kfree(hsf_handle);
2803                 hsf_handle = NULL;
2804         }
2805 }
2806
2807 /* USB charge function */
2808 static struct device_attribute *uc_handle;
2809
2810 static ssize_t sony_nc_usb_charge_store(struct device *dev,
2811                 struct device_attribute *attr,
2812                 const char *buffer, size_t count)
2813 {
2814         unsigned int result;
2815         unsigned long value;
2816
2817         if (count > 31)
2818                 return -EINVAL;
2819
2820         if (kstrtoul(buffer, 10, &value) || value > 1)
2821                 return -EINVAL;
2822
2823         if (sony_call_snc_handle(0x0155, value << 0x10 | 0x0100, &result))
2824                 return -EIO;
2825
2826         return count;
2827 }
2828
2829 static ssize_t sony_nc_usb_charge_show(struct device *dev,
2830                 struct device_attribute *attr, char *buffer)
2831 {
2832         unsigned int result;
2833
2834         if (sony_call_snc_handle(0x0155, 0x0000, &result))
2835                 return -EIO;
2836
2837         return snprintf(buffer, PAGE_SIZE, "%d\n", result & 0x01);
2838 }
2839
2840 static int sony_nc_usb_charge_setup(struct platform_device *pd)
2841 {
2842         unsigned int result;
2843
2844         if (sony_call_snc_handle(0x0155, 0x0000, &result) || !(result & 0x01)) {
2845                 /* some models advertise the handle but have no implementation
2846                  * for it
2847                  */
2848                 pr_info("No USB Charge capability found\n");
2849                 return 0;
2850         }
2851
2852         uc_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2853         if (!uc_handle)
2854                 return -ENOMEM;
2855
2856         sysfs_attr_init(&uc_handle->attr);
2857         uc_handle->attr.name = "usb_charge";
2858         uc_handle->attr.mode = S_IRUGO | S_IWUSR;
2859         uc_handle->show = sony_nc_usb_charge_show;
2860         uc_handle->store = sony_nc_usb_charge_store;
2861
2862         result = device_create_file(&pd->dev, uc_handle);
2863         if (result) {
2864                 kfree(uc_handle);
2865                 uc_handle = NULL;
2866                 return result;
2867         }
2868
2869         return 0;
2870 }
2871
2872 static void sony_nc_usb_charge_cleanup(struct platform_device *pd)
2873 {
2874         if (uc_handle) {
2875                 device_remove_file(&pd->dev, uc_handle);
2876                 kfree(uc_handle);
2877                 uc_handle = NULL;
2878         }
2879 }
2880
2881 /* Panel ID function */
2882 static struct device_attribute *panel_handle;
2883
2884 static ssize_t sony_nc_panelid_show(struct device *dev,
2885                 struct device_attribute *attr, char *buffer)
2886 {
2887         unsigned int result;
2888
2889         if (sony_call_snc_handle(0x011D, 0x0000, &result))
2890                 return -EIO;
2891
2892         return snprintf(buffer, PAGE_SIZE, "%d\n", result);
2893 }
2894
2895 static int sony_nc_panelid_setup(struct platform_device *pd)
2896 {
2897         unsigned int result;
2898
2899         panel_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2900         if (!panel_handle)
2901                 return -ENOMEM;
2902
2903         sysfs_attr_init(&panel_handle->attr);
2904         panel_handle->attr.name = "panel_id";
2905         panel_handle->attr.mode = S_IRUGO;
2906         panel_handle->show = sony_nc_panelid_show;
2907         panel_handle->store = NULL;
2908
2909         result = device_create_file(&pd->dev, panel_handle);
2910         if (result) {
2911                 kfree(panel_handle);
2912                 panel_handle = NULL;
2913                 return result;
2914         }
2915
2916         return 0;
2917 }
2918
2919 static void sony_nc_panelid_cleanup(struct platform_device *pd)
2920 {
2921         if (panel_handle) {
2922                 device_remove_file(&pd->dev, panel_handle);
2923                 kfree(panel_handle);
2924                 panel_handle = NULL;
2925         }
2926 }
2927
2928 /* smart connect function */
2929 static struct device_attribute *sc_handle;
2930
2931 static ssize_t sony_nc_smart_conn_store(struct device *dev,
2932                 struct device_attribute *attr,
2933                 const char *buffer, size_t count)
2934 {
2935         unsigned int result;
2936         unsigned long value;
2937
2938         if (count > 31)
2939                 return -EINVAL;
2940
2941         if (kstrtoul(buffer, 10, &value) || value > 1)
2942                 return -EINVAL;
2943
2944         if (sony_call_snc_handle(0x0168, value << 0x10, &result))
2945                 return -EIO;
2946
2947         return count;
2948 }
2949
2950 static int sony_nc_smart_conn_setup(struct platform_device *pd)
2951 {
2952         unsigned int result;
2953
2954         sc_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2955         if (!sc_handle)
2956                 return -ENOMEM;
2957
2958         sysfs_attr_init(&sc_handle->attr);
2959         sc_handle->attr.name = "smart_connect";
2960         sc_handle->attr.mode = S_IWUSR;
2961         sc_handle->show = NULL;
2962         sc_handle->store = sony_nc_smart_conn_store;
2963
2964         result = device_create_file(&pd->dev, sc_handle);
2965         if (result) {
2966                 kfree(sc_handle);
2967                 sc_handle = NULL;
2968                 return result;
2969         }
2970
2971         return 0;
2972 }
2973
2974 static void sony_nc_smart_conn_cleanup(struct platform_device *pd)
2975 {
2976         if (sc_handle) {
2977                 device_remove_file(&pd->dev, sc_handle);
2978                 kfree(sc_handle);
2979                 sc_handle = NULL;
2980         }
2981 }
2982
2983 /* Touchpad enable/disable */
2984 struct touchpad_control {
2985         struct device_attribute attr;
2986         int handle;
2987 };
2988 static struct touchpad_control *tp_ctl;
2989
2990 static ssize_t sony_nc_touchpad_store(struct device *dev,
2991                 struct device_attribute *attr, const char *buffer, size_t count)
2992 {
2993         unsigned int result;
2994         unsigned long value;
2995
2996         if (count > 31)
2997                 return -EINVAL;
2998
2999         if (kstrtoul(buffer, 10, &value) || value > 1)
3000                 return -EINVAL;
3001
3002         /* sysfs: 0 disabled, 1 enabled
3003          * EC: 0 enabled, 1 disabled
3004          */
3005         if (sony_call_snc_handle(tp_ctl->handle,
3006                                 (!value << 0x10) | 0x100, &result))
3007                 return -EIO;
3008
3009         return count;
3010 }
3011
3012 static ssize_t sony_nc_touchpad_show(struct device *dev,
3013                 struct device_attribute *attr, char *buffer)
3014 {
3015         unsigned int result;
3016
3017         if (sony_call_snc_handle(tp_ctl->handle, 0x000, &result))
3018                 return -EINVAL;
3019
3020         return snprintf(buffer, PAGE_SIZE, "%d\n", !(result & 0x01));
3021 }
3022
3023 static int sony_nc_touchpad_setup(struct platform_device *pd,
3024                 unsigned int handle)
3025 {
3026         int ret = 0;
3027
3028         tp_ctl = kzalloc(sizeof(struct touchpad_control), GFP_KERNEL);
3029         if (!tp_ctl)
3030                 return -ENOMEM;
3031
3032         tp_ctl->handle = handle;
3033
3034         sysfs_attr_init(&tp_ctl->attr.attr);
3035         tp_ctl->attr.attr.name = "touchpad";
3036         tp_ctl->attr.attr.mode = S_IRUGO | S_IWUSR;
3037         tp_ctl->attr.show = sony_nc_touchpad_show;
3038         tp_ctl->attr.store = sony_nc_touchpad_store;
3039
3040         ret = device_create_file(&pd->dev, &tp_ctl->attr);
3041         if (ret) {
3042                 kfree(tp_ctl);
3043                 tp_ctl = NULL;
3044         }
3045
3046         return ret;
3047 }
3048
3049 static void sony_nc_touchpad_cleanup(struct platform_device *pd)
3050 {
3051         if (tp_ctl) {
3052                 device_remove_file(&pd->dev, &tp_ctl->attr);
3053                 kfree(tp_ctl);
3054                 tp_ctl = NULL;
3055         }
3056 }
3057
3058 static void sony_nc_backlight_ng_read_limits(int handle,
3059                 struct sony_backlight_props *props)
3060 {
3061         u64 offset;
3062         int i;
3063         int lvl_table_len = 0;
3064         u8 min = 0xff, max = 0x00;
3065         unsigned char buffer[32] = { 0 };
3066
3067         props->handle = handle;
3068         props->offset = 0;
3069         props->maxlvl = 0xff;
3070
3071         offset = sony_find_snc_handle(handle);
3072
3073         /* try to read the boundaries from ACPI tables, if we fail the above
3074          * defaults should be reasonable
3075          */
3076         i = sony_nc_buffer_call(sony_nc_acpi_handle, "SN06", &offset, buffer,
3077                         32);
3078         if (i < 0)
3079                 return;
3080
3081         switch (handle) {
3082         case 0x012f:
3083         case 0x0137:
3084                 lvl_table_len = 9;
3085                 break;
3086         case 0x143:
3087         case 0x14b:
3088         case 0x14c:
3089                 lvl_table_len = 16;
3090                 break;
3091         }
3092
3093         /* the buffer lists brightness levels available, brightness levels are
3094          * from position 0 to 8 in the array, other values are used by ALS
3095          * control.
3096          */
3097         for (i = 0; i < lvl_table_len && i < ARRAY_SIZE(buffer); i++) {
3098
3099                 dprintk("Brightness level: %d\n", buffer[i]);
3100
3101                 if (!buffer[i])
3102                         break;
3103
3104                 if (buffer[i] > max)
3105                         max = buffer[i];
3106                 if (buffer[i] < min)
3107                         min = buffer[i];
3108         }
3109         props->offset = min;
3110         props->maxlvl = max;
3111         dprintk("Brightness levels: min=%d max=%d\n", props->offset,
3112                         props->maxlvl);
3113 }
3114
3115 static void sony_nc_backlight_setup(void)
3116 {
3117         int max_brightness = 0;
3118         const struct backlight_ops *ops = NULL;
3119         struct backlight_properties props;
3120
3121         if (sony_find_snc_handle(0x12f) >= 0) {
3122                 ops = &sony_backlight_ng_ops;
3123                 sony_bl_props.cmd_base = 0x0100;
3124                 sony_nc_backlight_ng_read_limits(0x12f, &sony_bl_props);
3125                 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
3126
3127         } else if (sony_find_snc_handle(0x137) >= 0) {
3128                 ops = &sony_backlight_ng_ops;
3129                 sony_bl_props.cmd_base = 0x0100;
3130                 sony_nc_backlight_ng_read_limits(0x137, &sony_bl_props);
3131                 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
3132
3133         } else if (sony_find_snc_handle(0x143) >= 0) {
3134                 ops = &sony_backlight_ng_ops;
3135                 sony_bl_props.cmd_base = 0x3000;
3136                 sony_nc_backlight_ng_read_limits(0x143, &sony_bl_props);
3137                 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
3138
3139         } else if (sony_find_snc_handle(0x14b) >= 0) {
3140                 ops = &sony_backlight_ng_ops;
3141                 sony_bl_props.cmd_base = 0x3000;
3142                 sony_nc_backlight_ng_read_limits(0x14b, &sony_bl_props);
3143                 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
3144
3145         } else if (sony_find_snc_handle(0x14c) >= 0) {
3146                 ops = &sony_backlight_ng_ops;
3147                 sony_bl_props.cmd_base = 0x3000;
3148                 sony_nc_backlight_ng_read_limits(0x14c, &sony_bl_props);
3149                 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
3150
3151         } else if (acpi_has_method(sony_nc_acpi_handle, "GBRT")) {
3152                 ops = &sony_backlight_ops;
3153                 max_brightness = SONY_MAX_BRIGHTNESS - 1;
3154
3155         } else
3156                 return;
3157
3158         memset(&props, 0, sizeof(struct backlight_properties));
3159         props.type = BACKLIGHT_PLATFORM;
3160         props.max_brightness = max_brightness;
3161         sony_bl_props.dev = backlight_device_register("sony", NULL,
3162                                                       &sony_bl_props,
3163                                                       ops, &props);
3164
3165         if (IS_ERR(sony_bl_props.dev)) {
3166                 pr_warn("unable to register backlight device\n");
3167                 sony_bl_props.dev = NULL;
3168         } else
3169                 sony_bl_props.dev->props.brightness =
3170                         ops->get_brightness(sony_bl_props.dev);
3171 }
3172
3173 static void sony_nc_backlight_cleanup(void)
3174 {
3175         backlight_device_unregister(sony_bl_props.dev);
3176 }
3177
3178 static int sony_nc_add(struct acpi_device *device)
3179 {
3180         acpi_status status;
3181         int result = 0;
3182         struct sony_nc_value *item;
3183
3184         sony_nc_acpi_device = device;
3185         strcpy(acpi_device_class(device), "sony/hotkey");
3186
3187         sony_nc_acpi_handle = device->handle;
3188
3189         /* read device status */
3190         result = acpi_bus_get_status(device);
3191         /* bail IFF the above call was successful and the device is not present */
3192         if (!result && !device->status.present) {
3193                 dprintk("Device not present\n");
3194                 result = -ENODEV;
3195                 goto outwalk;
3196         }
3197
3198         result = sony_pf_add();
3199         if (result)
3200                 goto outpresent;
3201
3202         if (debug) {
3203                 status = acpi_walk_namespace(ACPI_TYPE_METHOD,
3204                                 sony_nc_acpi_handle, 1, sony_walk_callback,
3205                                 NULL, NULL, NULL);
3206                 if (ACPI_FAILURE(status)) {
3207                         pr_warn("unable to walk acpi resources\n");
3208                         result = -ENODEV;
3209                         goto outpresent;
3210                 }
3211         }
3212
3213         result = sony_laptop_setup_input(device);
3214         if (result) {
3215                 pr_err("Unable to create input devices\n");
3216                 goto outplatform;
3217         }
3218
3219         if (acpi_has_method(sony_nc_acpi_handle, "ECON")) {
3220                 int arg = 1;
3221                 if (sony_nc_int_call(sony_nc_acpi_handle, "ECON", &arg, NULL))
3222                         dprintk("ECON Method failed\n");
3223         }
3224
3225         if (acpi_has_method(sony_nc_acpi_handle, "SN00")) {
3226                 dprintk("Doing SNC setup\n");
3227                 /* retrieve the available handles */
3228                 result = sony_nc_handles_setup(sony_pf_device);
3229                 if (!result)
3230                         sony_nc_function_setup(device, sony_pf_device);
3231         }
3232
3233         if (acpi_video_get_backlight_type() == acpi_backlight_vendor)
3234                 sony_nc_backlight_setup();
3235
3236         /* create sony_pf sysfs attributes related to the SNC device */
3237         for (item = sony_nc_values; item->name; ++item) {
3238
3239                 if (!debug && item->debug)
3240                         continue;
3241
3242                 /* find the available acpiget as described in the DSDT */
3243                 for (; item->acpiget && *item->acpiget; ++item->acpiget) {
3244                         if (acpi_has_method(sony_nc_acpi_handle,
3245                                                         *item->acpiget)) {
3246                                 dprintk("Found %s getter: %s\n",
3247                                                 item->name, *item->acpiget);
3248                                 item->devattr.attr.mode |= S_IRUGO;
3249                                 break;
3250                         }
3251                 }
3252
3253                 /* find the available acpiset as described in the DSDT */
3254                 for (; item->acpiset && *item->acpiset; ++item->acpiset) {
3255                         if (acpi_has_method(sony_nc_acpi_handle,
3256                                                         *item->acpiset)) {
3257                                 dprintk("Found %s setter: %s\n",
3258                                                 item->name, *item->acpiset);
3259                                 item->devattr.attr.mode |= S_IWUSR;
3260                                 break;
3261                         }
3262                 }
3263
3264                 if (item->devattr.attr.mode != 0) {
3265                         result =
3266                             device_create_file(&sony_pf_device->dev,
3267                                                &item->devattr);
3268                         if (result)
3269                                 goto out_sysfs;
3270                 }
3271         }
3272
3273         pr_info("SNC setup done.\n");
3274         return 0;
3275
3276 out_sysfs:
3277         for (item = sony_nc_values; item->name; ++item) {
3278                 device_remove_file(&sony_pf_device->dev, &item->devattr);
3279         }
3280         sony_nc_backlight_cleanup();
3281         sony_nc_function_cleanup(sony_pf_device);
3282         sony_nc_handles_cleanup(sony_pf_device);
3283
3284 outplatform:
3285         sony_laptop_remove_input();
3286
3287 outpresent:
3288         sony_pf_remove();
3289
3290 outwalk:
3291         sony_nc_rfkill_cleanup();
3292         return result;
3293 }
3294
3295 static int sony_nc_remove(struct acpi_device *device)
3296 {
3297         struct sony_nc_value *item;
3298
3299         sony_nc_backlight_cleanup();
3300
3301         sony_nc_acpi_device = NULL;
3302
3303         for (item = sony_nc_values; item->name; ++item) {
3304                 device_remove_file(&sony_pf_device->dev, &item->devattr);
3305         }
3306
3307         sony_nc_function_cleanup(sony_pf_device);
3308         sony_nc_handles_cleanup(sony_pf_device);
3309         sony_pf_remove();
3310         sony_laptop_remove_input();
3311         dprintk(SONY_NC_DRIVER_NAME " removed.\n");
3312
3313         return 0;
3314 }
3315
3316 static const struct acpi_device_id sony_device_ids[] = {
3317         {SONY_NC_HID, 0},
3318         {SONY_PIC_HID, 0},
3319         {"", 0},
3320 };
3321 MODULE_DEVICE_TABLE(acpi, sony_device_ids);
3322
3323 static const struct acpi_device_id sony_nc_device_ids[] = {
3324         {SONY_NC_HID, 0},
3325         {"", 0},
3326 };
3327
3328 static struct acpi_driver sony_nc_driver = {
3329         .name = SONY_NC_DRIVER_NAME,
3330         .class = SONY_NC_CLASS,
3331         .ids = sony_nc_device_ids,
3332         .owner = THIS_MODULE,
3333         .ops = {
3334                 .add = sony_nc_add,
3335                 .remove = sony_nc_remove,
3336                 .notify = sony_nc_notify,
3337                 },
3338         .drv.pm = &sony_nc_pm,
3339 };
3340
3341 /*********** SPIC (SNY6001) Device ***********/
3342
3343 #define SONYPI_DEVICE_TYPE1     0x00000001
3344 #define SONYPI_DEVICE_TYPE2     0x00000002
3345 #define SONYPI_DEVICE_TYPE3     0x00000004
3346
3347 #define SONYPI_TYPE1_OFFSET     0x04
3348 #define SONYPI_TYPE2_OFFSET     0x12
3349 #define SONYPI_TYPE3_OFFSET     0x12
3350
3351 struct sony_pic_ioport {
3352         struct acpi_resource_io io1;
3353         struct acpi_resource_io io2;
3354         struct list_head        list;
3355 };
3356
3357 struct sony_pic_irq {
3358         struct acpi_resource_irq        irq;
3359         struct list_head                list;
3360 };
3361
3362 struct sonypi_eventtypes {
3363         u8                      data;
3364         unsigned long           mask;
3365         struct sonypi_event     *events;
3366 };
3367
3368 struct sony_pic_dev {
3369         struct acpi_device              *acpi_dev;
3370         struct sony_pic_irq             *cur_irq;
3371         struct sony_pic_ioport          *cur_ioport;
3372         struct list_head                interrupts;
3373         struct list_head                ioports;
3374         struct mutex                    lock;
3375         struct sonypi_eventtypes        *event_types;
3376         int                             (*handle_irq)(const u8, const u8);
3377         int                             model;
3378         u16                             evport_offset;
3379         u8                              camera_power;
3380         u8                              bluetooth_power;
3381         u8                              wwan_power;
3382 };
3383
3384 static struct sony_pic_dev spic_dev = {
3385         .interrupts     = LIST_HEAD_INIT(spic_dev.interrupts),
3386         .ioports        = LIST_HEAD_INIT(spic_dev.ioports),
3387 };
3388
3389 static int spic_drv_registered;
3390
3391 /* Event masks */
3392 #define SONYPI_JOGGER_MASK                      0x00000001
3393 #define SONYPI_CAPTURE_MASK                     0x00000002
3394 #define SONYPI_FNKEY_MASK                       0x00000004
3395 #define SONYPI_BLUETOOTH_MASK                   0x00000008
3396 #define SONYPI_PKEY_MASK                        0x00000010
3397 #define SONYPI_BACK_MASK                        0x00000020
3398 #define SONYPI_HELP_MASK                        0x00000040
3399 #define SONYPI_LID_MASK                         0x00000080
3400 #define SONYPI_ZOOM_MASK                        0x00000100
3401 #define SONYPI_THUMBPHRASE_MASK                 0x00000200
3402 #define SONYPI_MEYE_MASK                        0x00000400
3403 #define SONYPI_MEMORYSTICK_MASK                 0x00000800
3404 #define SONYPI_BATTERY_MASK                     0x00001000
3405 #define SONYPI_WIRELESS_MASK                    0x00002000
3406
3407 struct sonypi_event {
3408         u8      data;
3409         u8      event;
3410 };
3411
3412 /* The set of possible button release events */
3413 static struct sonypi_event sonypi_releaseev[] = {
3414         { 0x00, SONYPI_EVENT_ANYBUTTON_RELEASED },
3415         { 0, 0 }
3416 };
3417
3418 /* The set of possible jogger events  */
3419 static struct sonypi_event sonypi_joggerev[] = {
3420         { 0x1f, SONYPI_EVENT_JOGDIAL_UP },
3421         { 0x01, SONYPI_EVENT_JOGDIAL_DOWN },
3422         { 0x5f, SONYPI_EVENT_JOGDIAL_UP_PRESSED },
3423         { 0x41, SONYPI_EVENT_JOGDIAL_DOWN_PRESSED },
3424         { 0x1e, SONYPI_EVENT_JOGDIAL_FAST_UP },
3425         { 0x02, SONYPI_EVENT_JOGDIAL_FAST_DOWN },
3426         { 0x5e, SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED },
3427         { 0x42, SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED },
3428         { 0x1d, SONYPI_EVENT_JOGDIAL_VFAST_UP },
3429         { 0x03, SONYPI_EVENT_JOGDIAL_VFAST_DOWN },
3430         { 0x5d, SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED },
3431         { 0x43, SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED },
3432         { 0x40, SONYPI_EVENT_JOGDIAL_PRESSED },
3433         { 0, 0 }
3434 };
3435
3436 /* The set of possible capture button events */
3437 static struct sonypi_event sonypi_captureev[] = {
3438         { 0x05, SONYPI_EVENT_CAPTURE_PARTIALPRESSED },
3439         { 0x07, SONYPI_EVENT_CAPTURE_PRESSED },
3440         { 0x40, SONYPI_EVENT_CAPTURE_PRESSED },
3441         { 0x01, SONYPI_EVENT_CAPTURE_PARTIALRELEASED },
3442         { 0, 0 }
3443 };
3444
3445 /* The set of possible fnkeys events */
3446 static struct sonypi_event sonypi_fnkeyev[] = {
3447         { 0x10, SONYPI_EVENT_FNKEY_ESC },
3448         { 0x11, SONYPI_EVENT_FNKEY_F1 },
3449         { 0x12, SONYPI_EVENT_FNKEY_F2 },
3450         { 0x13, SONYPI_EVENT_FNKEY_F3 },
3451         { 0x14, SONYPI_EVENT_FNKEY_F4 },
3452         { 0x15, SONYPI_EVENT_FNKEY_F5 },
3453         { 0x16, SONYPI_EVENT_FNKEY_F6 },
3454         { 0x17, SONYPI_EVENT_FNKEY_F7 },
3455         { 0x18, SONYPI_EVENT_FNKEY_F8 },
3456         { 0x19, SONYPI_EVENT_FNKEY_F9 },
3457         { 0x1a, SONYPI_EVENT_FNKEY_F10 },
3458         { 0x1b, SONYPI_EVENT_FNKEY_F11 },
3459         { 0x1c, SONYPI_EVENT_FNKEY_F12 },
3460         { 0x1f, SONYPI_EVENT_FNKEY_RELEASED },
3461         { 0x21, SONYPI_EVENT_FNKEY_1 },
3462         { 0x22, SONYPI_EVENT_FNKEY_2 },
3463         { 0x31, SONYPI_EVENT_FNKEY_D },
3464         { 0x32, SONYPI_EVENT_FNKEY_E },
3465         { 0x33, SONYPI_EVENT_FNKEY_F },
3466         { 0x34, SONYPI_EVENT_FNKEY_S },
3467         { 0x35, SONYPI_EVENT_FNKEY_B },
3468         { 0x36, SONYPI_EVENT_FNKEY_ONLY },
3469         { 0, 0 }
3470 };
3471
3472 /* The set of possible program key events */
3473 static struct sonypi_event sonypi_pkeyev[] = {
3474         { 0x01, SONYPI_EVENT_PKEY_P1 },
3475         { 0x02, SONYPI_EVENT_PKEY_P2 },
3476         { 0x04, SONYPI_EVENT_PKEY_P3 },
3477         { 0x20, SONYPI_EVENT_PKEY_P1 },
3478         { 0, 0 }
3479 };
3480
3481 /* The set of possible bluetooth events */
3482 static struct sonypi_event sonypi_blueev[] = {
3483         { 0x55, SONYPI_EVENT_BLUETOOTH_PRESSED },
3484         { 0x59, SONYPI_EVENT_BLUETOOTH_ON },
3485         { 0x5a, SONYPI_EVENT_BLUETOOTH_OFF },
3486         { 0, 0 }
3487 };
3488
3489 /* The set of possible wireless events */
3490 static struct sonypi_event sonypi_wlessev[] = {
3491         { 0x59, SONYPI_EVENT_IGNORE },
3492         { 0x5a, SONYPI_EVENT_IGNORE },
3493         { 0, 0 }
3494 };
3495
3496 /* The set of possible back button events */
3497 static struct sonypi_event sonypi_backev[] = {
3498         { 0x20, SONYPI_EVENT_BACK_PRESSED },
3499         { 0, 0 }
3500 };
3501
3502 /* The set of possible help button events */
3503 static struct sonypi_event sonypi_helpev[] = {
3504         { 0x3b, SONYPI_EVENT_HELP_PRESSED },
3505         { 0, 0 }
3506 };
3507
3508
3509 /* The set of possible lid events */
3510 static struct sonypi_event sonypi_lidev[] = {
3511         { 0x51, SONYPI_EVENT_LID_CLOSED },
3512         { 0x50, SONYPI_EVENT_LID_OPENED },
3513         { 0, 0 }
3514 };
3515
3516 /* The set of possible zoom events */
3517 static struct sonypi_event sonypi_zoomev[] = {
3518         { 0x39, SONYPI_EVENT_ZOOM_PRESSED },
3519         { 0x10, SONYPI_EVENT_ZOOM_IN_PRESSED },
3520         { 0x20, SONYPI_EVENT_ZOOM_OUT_PRESSED },
3521         { 0x04, SONYPI_EVENT_ZOOM_PRESSED },
3522         { 0, 0 }
3523 };
3524
3525 /* The set of possible thumbphrase events */
3526 static struct sonypi_event sonypi_thumbphraseev[] = {
3527         { 0x3a, SONYPI_EVENT_THUMBPHRASE_PRESSED },
3528         { 0, 0 }
3529 };
3530
3531 /* The set of possible motioneye camera events */
3532 static struct sonypi_event sonypi_meyeev[] = {
3533         { 0x00, SONYPI_EVENT_MEYE_FACE },
3534         { 0x01, SONYPI_EVENT_MEYE_OPPOSITE },
3535         { 0, 0 }
3536 };
3537
3538 /* The set of possible memorystick events */
3539 static struct sonypi_event sonypi_memorystickev[] = {
3540         { 0x53, SONYPI_EVENT_MEMORYSTICK_INSERT },
3541         { 0x54, SONYPI_EVENT_MEMORYSTICK_EJECT },
3542         { 0, 0 }
3543 };
3544
3545 /* The set of possible battery events */
3546 static struct sonypi_event sonypi_batteryev[] = {
3547         { 0x20, SONYPI_EVENT_BATTERY_INSERT },
3548         { 0x30, SONYPI_EVENT_BATTERY_REMOVE },
3549         { 0, 0 }
3550 };
3551
3552 /* The set of possible volume events */
3553 static struct sonypi_event sonypi_volumeev[] = {
3554         { 0x01, SONYPI_EVENT_VOLUME_INC_PRESSED },
3555         { 0x02, SONYPI_EVENT_VOLUME_DEC_PRESSED },
3556         { 0, 0 }
3557 };
3558
3559 /* The set of possible brightness events */
3560 static struct sonypi_event sonypi_brightnessev[] = {
3561         { 0x80, SONYPI_EVENT_BRIGHTNESS_PRESSED },
3562         { 0, 0 }
3563 };
3564
3565 static struct sonypi_eventtypes type1_events[] = {
3566         { 0, 0xffffffff, sonypi_releaseev },
3567         { 0x70, SONYPI_MEYE_MASK, sonypi_meyeev },
3568         { 0x30, SONYPI_LID_MASK, sonypi_lidev },
3569         { 0x60, SONYPI_CAPTURE_MASK, sonypi_captureev },
3570         { 0x10, SONYPI_JOGGER_MASK, sonypi_joggerev },
3571         { 0x20, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
3572         { 0x30, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
3573         { 0x40, SONYPI_PKEY_MASK, sonypi_pkeyev },
3574         { 0x30, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
3575         { 0x40, SONYPI_BATTERY_MASK, sonypi_batteryev },
3576         { 0 },
3577 };
3578 static struct sonypi_eventtypes type2_events[] = {
3579         { 0, 0xffffffff, sonypi_releaseev },
3580         { 0x38, SONYPI_LID_MASK, sonypi_lidev },
3581         { 0x11, SONYPI_JOGGER_MASK, sonypi_joggerev },
3582         { 0x61, SONYPI_CAPTURE_MASK, sonypi_captureev },
3583         { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
3584         { 0x31, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
3585         { 0x08, SONYPI_PKEY_MASK, sonypi_pkeyev },
3586         { 0x11, SONYPI_BACK_MASK, sonypi_backev },
3587         { 0x21, SONYPI_HELP_MASK, sonypi_helpev },
3588         { 0x21, SONYPI_ZOOM_MASK, sonypi_zoomev },
3589         { 0x20, SONYPI_THUMBPHRASE_MASK, sonypi_thumbphraseev },
3590         { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
3591         { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
3592         { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
3593         { 0 },
3594 };
3595 static struct sonypi_eventtypes type3_events[] = {
3596         { 0, 0xffffffff, sonypi_releaseev },
3597         { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
3598         { 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
3599         { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
3600         { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
3601         { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
3602         { 0x05, SONYPI_PKEY_MASK, sonypi_pkeyev },
3603         { 0x05, SONYPI_ZOOM_MASK, sonypi_zoomev },
3604         { 0x05, SONYPI_CAPTURE_MASK, sonypi_captureev },
3605         { 0x05, SONYPI_PKEY_MASK, sonypi_volumeev },
3606         { 0x05, SONYPI_PKEY_MASK, sonypi_brightnessev },
3607         { 0 },
3608 };
3609
3610 /* low level spic calls */
3611 #define ITERATIONS_LONG         10000
3612 #define ITERATIONS_SHORT        10
3613 #define wait_on_command(command, iterations) {                          \
3614         unsigned int n = iterations;                                    \
3615         while (--n && (command))                                        \
3616                 udelay(1);                                              \
3617         if (!n)                                                         \
3618                 dprintk("command failed at %s : %s (line %d)\n",        \
3619                                 __FILE__, __func__, __LINE__);  \
3620 }
3621
3622 static u8 sony_pic_call1(u8 dev)
3623 {
3624         u8 v1, v2;
3625
3626         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
3627                         ITERATIONS_LONG);
3628         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
3629         v1 = inb_p(spic_dev.cur_ioport->io1.minimum + 4);
3630         v2 = inb_p(spic_dev.cur_ioport->io1.minimum);
3631         dprintk("sony_pic_call1(0x%.2x): 0x%.4x\n", dev, (v2 << 8) | v1);
3632         return v2;
3633 }
3634
3635 static u8 sony_pic_call2(u8 dev, u8 fn)
3636 {
3637         u8 v1;
3638
3639         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
3640                         ITERATIONS_LONG);
3641         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
3642         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
3643                         ITERATIONS_LONG);
3644         outb(fn, spic_dev.cur_ioport->io1.minimum);
3645         v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
3646         dprintk("sony_pic_call2(0x%.2x - 0x%.2x): 0x%.4x\n", dev, fn, v1);
3647         return v1;
3648 }
3649
3650 static u8 sony_pic_call3(u8 dev, u8 fn, u8 v)
3651 {
3652         u8 v1;
3653
3654         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
3655         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
3656         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
3657         outb(fn, spic_dev.cur_ioport->io1.minimum);
3658         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
3659         outb(v, spic_dev.cur_ioport->io1.minimum);
3660         v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
3661         dprintk("sony_pic_call3(0x%.2x - 0x%.2x - 0x%.2x): 0x%.4x\n",
3662                         dev, fn, v, v1);
3663         return v1;
3664 }
3665
3666 /*
3667  * minidrivers for SPIC models
3668  */
3669 static int type3_handle_irq(const u8 data_mask, const u8 ev)
3670 {
3671         /*
3672          * 0x31 could mean we have to take some extra action and wait for
3673          * the next irq for some Type3 models, it will generate a new
3674          * irq and we can read new data from the device:
3675          *  - 0x5c and 0x5f requires 0xA0
3676          *  - 0x61 requires 0xB3
3677          */
3678         if (data_mask == 0x31) {
3679                 if (ev == 0x5c || ev == 0x5f)
3680                         sony_pic_call1(0xA0);
3681                 else if (ev == 0x61)
3682                         sony_pic_call1(0xB3);
3683                 return 0;
3684         }
3685         return 1;
3686 }
3687
3688 static void sony_pic_detect_device_type(struct sony_pic_dev *dev)
3689 {
3690         struct pci_dev *pcidev;
3691
3692         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3693                         PCI_DEVICE_ID_INTEL_82371AB_3, NULL);
3694         if (pcidev) {
3695                 dev->model = SONYPI_DEVICE_TYPE1;
3696                 dev->evport_offset = SONYPI_TYPE1_OFFSET;
3697                 dev->event_types = type1_events;
3698                 goto out;
3699         }
3700
3701         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3702                         PCI_DEVICE_ID_INTEL_ICH6_1, NULL);
3703         if (pcidev) {
3704                 dev->model = SONYPI_DEVICE_TYPE2;
3705                 dev->evport_offset = SONYPI_TYPE2_OFFSET;
3706                 dev->event_types = type2_events;
3707                 goto out;
3708         }
3709
3710         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3711                         PCI_DEVICE_ID_INTEL_ICH7_1, NULL);
3712         if (pcidev) {
3713                 dev->model = SONYPI_DEVICE_TYPE3;
3714                 dev->handle_irq = type3_handle_irq;
3715                 dev->evport_offset = SONYPI_TYPE3_OFFSET;
3716                 dev->event_types = type3_events;
3717                 goto out;
3718         }
3719
3720         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3721                         PCI_DEVICE_ID_INTEL_ICH8_4, NULL);
3722         if (pcidev) {
3723                 dev->model = SONYPI_DEVICE_TYPE3;
3724                 dev->handle_irq = type3_handle_irq;
3725                 dev->evport_offset = SONYPI_TYPE3_OFFSET;
3726                 dev->event_types = type3_events;
3727                 goto out;
3728         }
3729
3730         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3731                         PCI_DEVICE_ID_INTEL_ICH9_1, NULL);
3732         if (pcidev) {
3733                 dev->model = SONYPI_DEVICE_TYPE3;
3734                 dev->handle_irq = type3_handle_irq;
3735                 dev->evport_offset = SONYPI_TYPE3_OFFSET;
3736                 dev->event_types = type3_events;
3737                 goto out;
3738         }
3739
3740         /* default */
3741         dev->model = SONYPI_DEVICE_TYPE2;
3742         dev->evport_offset = SONYPI_TYPE2_OFFSET;
3743         dev->event_types = type2_events;
3744
3745 out:
3746         pci_dev_put(pcidev);
3747
3748         pr_info("detected Type%d model\n",
3749                 dev->model == SONYPI_DEVICE_TYPE1 ? 1 :
3750                 dev->model == SONYPI_DEVICE_TYPE2 ? 2 : 3);
3751 }
3752
3753 /* camera tests and poweron/poweroff */
3754 #define SONYPI_CAMERA_PICTURE           5
3755 #define SONYPI_CAMERA_CONTROL           0x10
3756
3757 #define SONYPI_CAMERA_BRIGHTNESS                0
3758 #define SONYPI_CAMERA_CONTRAST                  1
3759 #define SONYPI_CAMERA_HUE                       2
3760 #define SONYPI_CAMERA_COLOR                     3
3761 #define SONYPI_CAMERA_SHARPNESS                 4
3762
3763 #define SONYPI_CAMERA_EXPOSURE_MASK             0xC
3764 #define SONYPI_CAMERA_WHITE_BALANCE_MASK        0x3
3765 #define SONYPI_CAMERA_PICTURE_MODE_MASK         0x30
3766 #define SONYPI_CAMERA_MUTE_MASK                 0x40
3767
3768 /* the rest don't need a loop until not 0xff */
3769 #define SONYPI_CAMERA_AGC                       6
3770 #define SONYPI_CAMERA_AGC_MASK                  0x30
3771 #define SONYPI_CAMERA_SHUTTER_MASK              0x7
3772
3773 #define SONYPI_CAMERA_SHUTDOWN_REQUEST          7
3774 #define SONYPI_CAMERA_CONTROL                   0x10
3775
3776 #define SONYPI_CAMERA_STATUS                    7
3777 #define SONYPI_CAMERA_STATUS_READY              0x2
3778 #define SONYPI_CAMERA_STATUS_POSITION           0x4
3779
3780 #define SONYPI_DIRECTION_BACKWARDS              0x4
3781
3782 #define SONYPI_CAMERA_REVISION                  8
3783 #define SONYPI_CAMERA_ROMVERSION                9
3784
3785 static int __sony_pic_camera_ready(void)
3786 {
3787         u8 v;
3788
3789         v = sony_pic_call2(0x8f, SONYPI_CAMERA_STATUS);
3790         return (v != 0xff && (v & SONYPI_CAMERA_STATUS_READY));
3791 }
3792
3793 static int __sony_pic_camera_off(void)
3794 {
3795         if (!camera) {
3796                 pr_warn("camera control not enabled\n");
3797                 return -ENODEV;
3798         }
3799
3800         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE,
3801                                 SONYPI_CAMERA_MUTE_MASK),
3802                         ITERATIONS_SHORT);
3803
3804         if (spic_dev.camera_power) {
3805                 sony_pic_call2(0x91, 0);
3806                 spic_dev.camera_power = 0;
3807         }
3808         return 0;
3809 }
3810
3811 static int __sony_pic_camera_on(void)
3812 {
3813         int i, j, x;
3814
3815         if (!camera) {
3816                 pr_warn("camera control not enabled\n");
3817                 return -ENODEV;
3818         }
3819
3820         if (spic_dev.camera_power)
3821                 return 0;
3822
3823         for (j = 5; j > 0; j--) {
3824
3825                 for (x = 0; x < 100 && sony_pic_call2(0x91, 0x1); x++)
3826                         msleep(10);
3827                 sony_pic_call1(0x93);
3828
3829                 for (i = 400; i > 0; i--) {
3830                         if (__sony_pic_camera_ready())
3831                                 break;
3832                         msleep(10);
3833                 }
3834                 if (i)
3835                         break;
3836         }
3837
3838         if (j == 0) {
3839                 pr_warn("failed to power on camera\n");
3840                 return -ENODEV;
3841         }
3842
3843         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTROL,
3844                                 0x5a),
3845                         ITERATIONS_SHORT);
3846
3847         spic_dev.camera_power = 1;
3848         return 0;
3849 }
3850
3851 /* External camera command (exported to the motion eye v4l driver) */
3852 int sony_pic_camera_command(int command, u8 value)
3853 {
3854         if (!camera)
3855                 return -EIO;
3856
3857         mutex_lock(&spic_dev.lock);
3858
3859         switch (command) {
3860         case SONY_PIC_COMMAND_SETCAMERA:
3861                 if (value)
3862                         __sony_pic_camera_on();
3863                 else
3864                         __sony_pic_camera_off();
3865                 break;
3866         case SONY_PIC_COMMAND_SETCAMERABRIGHTNESS:
3867                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_BRIGHTNESS, value),
3868                                 ITERATIONS_SHORT);
3869                 break;
3870         case SONY_PIC_COMMAND_SETCAMERACONTRAST:
3871                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTRAST, value),
3872                                 ITERATIONS_SHORT);
3873                 break;
3874         case SONY_PIC_COMMAND_SETCAMERAHUE:
3875                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_HUE, value),
3876                                 ITERATIONS_SHORT);
3877                 break;
3878         case SONY_PIC_COMMAND_SETCAMERACOLOR:
3879                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_COLOR, value),
3880                                 ITERATIONS_SHORT);
3881                 break;
3882         case SONY_PIC_COMMAND_SETCAMERASHARPNESS:
3883                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_SHARPNESS, value),
3884                                 ITERATIONS_SHORT);
3885                 break;
3886         case SONY_PIC_COMMAND_SETCAMERAPICTURE:
3887                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE, value),
3888                                 ITERATIONS_SHORT);
3889                 break;
3890         case SONY_PIC_COMMAND_SETCAMERAAGC:
3891                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_AGC, value),
3892                                 ITERATIONS_SHORT);
3893                 break;
3894         default:
3895                 pr_err("sony_pic_camera_command invalid: %d\n", command);
3896                 break;
3897         }
3898         mutex_unlock(&spic_dev.lock);
3899         return 0;
3900 }
3901 EXPORT_SYMBOL(sony_pic_camera_command);
3902
3903 /* gprs/edge modem (SZ460N and SZ210P), thanks to Joshua Wise */
3904 static void __sony_pic_set_wwanpower(u8 state)
3905 {
3906         state = !!state;
3907         if (spic_dev.wwan_power == state)
3908                 return;
3909         sony_pic_call2(0xB0, state);
3910         sony_pic_call1(0x82);
3911         spic_dev.wwan_power = state;
3912 }
3913
3914 static ssize_t sony_pic_wwanpower_store(struct device *dev,
3915                 struct device_attribute *attr,
3916                 const char *buffer, size_t count)
3917 {
3918         unsigned long value;
3919         if (count > 31)
3920                 return -EINVAL;
3921
3922         if (kstrtoul(buffer, 10, &value))
3923                 return -EINVAL;
3924
3925         mutex_lock(&spic_dev.lock);
3926         __sony_pic_set_wwanpower(value);
3927         mutex_unlock(&spic_dev.lock);
3928
3929         return count;
3930 }
3931
3932 static ssize_t sony_pic_wwanpower_show(struct device *dev,
3933                 struct device_attribute *attr, char *buffer)
3934 {
3935         ssize_t count;
3936         mutex_lock(&spic_dev.lock);
3937         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.wwan_power);
3938         mutex_unlock(&spic_dev.lock);
3939         return count;
3940 }
3941
3942 /* bluetooth subsystem power state */
3943 static void __sony_pic_set_bluetoothpower(u8 state)
3944 {
3945         state = !!state;
3946         if (spic_dev.bluetooth_power == state)
3947                 return;
3948         sony_pic_call2(0x96, state);
3949         sony_pic_call1(0x82);
3950         spic_dev.bluetooth_power = state;
3951 }
3952
3953 static ssize_t sony_pic_bluetoothpower_store(struct device *dev,
3954                 struct device_attribute *attr,
3955                 const char *buffer, size_t count)
3956 {
3957         unsigned long value;
3958         if (count > 31)
3959                 return -EINVAL;
3960
3961         if (kstrtoul(buffer, 10, &value))
3962                 return -EINVAL;
3963
3964         mutex_lock(&spic_dev.lock);
3965         __sony_pic_set_bluetoothpower(value);
3966         mutex_unlock(&spic_dev.lock);
3967
3968         return count;
3969 }
3970
3971 static ssize_t sony_pic_bluetoothpower_show(struct device *dev,
3972                 struct device_attribute *attr, char *buffer)
3973 {
3974         ssize_t count = 0;
3975         mutex_lock(&spic_dev.lock);
3976         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.bluetooth_power);
3977         mutex_unlock(&spic_dev.lock);
3978         return count;
3979 }
3980
3981 /* fan speed */
3982 /* FAN0 information (reverse engineered from ACPI tables) */
3983 #define SONY_PIC_FAN0_STATUS    0x93
3984 static int sony_pic_set_fanspeed(unsigned long value)
3985 {
3986         return ec_write(SONY_PIC_FAN0_STATUS, value);
3987 }
3988
3989 static int sony_pic_get_fanspeed(u8 *value)
3990 {
3991         return ec_read(SONY_PIC_FAN0_STATUS, value);
3992 }
3993
3994 static ssize_t sony_pic_fanspeed_store(struct device *dev,
3995                 struct device_attribute *attr,
3996                 const char *buffer, size_t count)
3997 {
3998         unsigned long value;
3999         if (count > 31)
4000                 return -EINVAL;
4001
4002         if (kstrtoul(buffer, 10, &value))
4003                 return -EINVAL;
4004
4005         if (sony_pic_set_fanspeed(value))
4006                 return -EIO;
4007
4008         return count;
4009 }
4010
4011 static ssize_t sony_pic_fanspeed_show(struct device *dev,
4012                 struct device_attribute *attr, char *buffer)
4013 {
4014         u8 value = 0;
4015         if (sony_pic_get_fanspeed(&value))
4016                 return -EIO;
4017
4018         return snprintf(buffer, PAGE_SIZE, "%d\n", value);
4019 }
4020
4021 #define SPIC_ATTR(_name, _mode)                                 \
4022 struct device_attribute spic_attr_##_name = __ATTR(_name,       \
4023                 _mode, sony_pic_## _name ##_show,               \
4024                 sony_pic_## _name ##_store)
4025
4026 static SPIC_ATTR(bluetoothpower, 0644);
4027 static SPIC_ATTR(wwanpower, 0644);
4028 static SPIC_ATTR(fanspeed, 0644);
4029
4030 static struct attribute *spic_attributes[] = {
4031         &spic_attr_bluetoothpower.attr,
4032         &spic_attr_wwanpower.attr,
4033         &spic_attr_fanspeed.attr,
4034         NULL
4035 };
4036
4037 static const struct attribute_group spic_attribute_group = {
4038         .attrs = spic_attributes
4039 };
4040
4041 /******** SONYPI compatibility **********/
4042 #ifdef CONFIG_SONYPI_COMPAT
4043
4044 /* battery / brightness / temperature  addresses */
4045 #define SONYPI_BAT_FLAGS        0x81
4046 #define SONYPI_LCD_LIGHT        0x96
4047 #define SONYPI_BAT1_PCTRM       0xa0
4048 #define SONYPI_BAT1_LEFT        0xa2
4049 #define SONYPI_BAT1_MAXRT       0xa4
4050 #define SONYPI_BAT2_PCTRM       0xa8
4051 #define SONYPI_BAT2_LEFT        0xaa
4052 #define SONYPI_BAT2_MAXRT       0xac
4053 #define SONYPI_BAT1_MAXTK       0xb0
4054 #define SONYPI_BAT1_FULL        0xb2
4055 #define SONYPI_BAT2_MAXTK       0xb8
4056 #define SONYPI_BAT2_FULL        0xba
4057 #define SONYPI_TEMP_STATUS      0xC1
4058
4059 struct sonypi_compat_s {
4060         struct fasync_struct    *fifo_async;
4061         struct kfifo            fifo;
4062         spinlock_t              fifo_lock;
4063         wait_queue_head_t       fifo_proc_list;
4064         atomic_t                open_count;
4065 };
4066 static struct sonypi_compat_s sonypi_compat = {
4067         .open_count = ATOMIC_INIT(0),
4068 };
4069
4070 static int sonypi_misc_fasync(int fd, struct file *filp, int on)
4071 {
4072         return fasync_helper(fd, filp, on, &sonypi_compat.fifo_async);
4073 }
4074
4075 static int sonypi_misc_release(struct inode *inode, struct file *file)
4076 {
4077         atomic_dec(&sonypi_compat.open_count);
4078         return 0;
4079 }
4080
4081 static int sonypi_misc_open(struct inode *inode, struct file *file)
4082 {
4083         /* Flush input queue on first open */
4084         unsigned long flags;
4085
4086         spin_lock_irqsave(&sonypi_compat.fifo_lock, flags);
4087
4088         if (atomic_inc_return(&sonypi_compat.open_count) == 1)
4089                 kfifo_reset(&sonypi_compat.fifo);
4090
4091         spin_unlock_irqrestore(&sonypi_compat.fifo_lock, flags);
4092
4093         return 0;
4094 }
4095
4096 static ssize_t sonypi_misc_read(struct file *file, char __user *buf,
4097                                 size_t count, loff_t *pos)
4098 {
4099         ssize_t ret;
4100         unsigned char c;
4101
4102         if ((kfifo_len(&sonypi_compat.fifo) == 0) &&
4103             (file->f_flags & O_NONBLOCK))
4104                 return -EAGAIN;
4105
4106         ret = wait_event_interruptible(sonypi_compat.fifo_proc_list,
4107                                        kfifo_len(&sonypi_compat.fifo) != 0);
4108         if (ret)
4109                 return ret;
4110
4111         while (ret < count &&
4112                (kfifo_out_locked(&sonypi_compat.fifo, &c, sizeof(c),
4113                           &sonypi_compat.fifo_lock) == sizeof(c))) {
4114                 if (put_user(c, buf++))
4115                         return -EFAULT;
4116                 ret++;
4117         }
4118
4119         if (ret > 0) {
4120                 struct inode *inode = file_inode(file);
4121                 inode->i_atime = current_time(inode);
4122         }
4123
4124         return ret;
4125 }
4126
4127 static __poll_t sonypi_misc_poll(struct file *file, poll_table *wait)
4128 {
4129         poll_wait(file, &sonypi_compat.fifo_proc_list, wait);
4130         if (kfifo_len(&sonypi_compat.fifo))
4131                 return POLLIN | POLLRDNORM;
4132         return 0;
4133 }
4134
4135 static int ec_read16(u8 addr, u16 *value)
4136 {
4137         u8 val_lb, val_hb;
4138         if (ec_read(addr, &val_lb))
4139                 return -1;
4140         if (ec_read(addr + 1, &val_hb))
4141                 return -1;
4142         *value = val_lb | (val_hb << 8);
4143         return 0;
4144 }
4145
4146 static long sonypi_misc_ioctl(struct file *fp, unsigned int cmd,
4147                                                         unsigned long arg)
4148 {
4149         int ret = 0;
4150         void __user *argp = (void __user *)arg;
4151         u8 val8;
4152         u16 val16;
4153         int value;
4154
4155         mutex_lock(&spic_dev.lock);
4156         switch (cmd) {
4157         case SONYPI_IOCGBRT:
4158                 if (sony_bl_props.dev == NULL) {
4159                         ret = -EIO;
4160                         break;
4161                 }
4162                 if (sony_nc_int_call(sony_nc_acpi_handle, "GBRT", NULL,
4163                                         &value)) {
4164                         ret = -EIO;
4165                         break;
4166                 }
4167                 val8 = ((value & 0xff) - 1) << 5;
4168                 if (copy_to_user(argp, &val8, sizeof(val8)))
4169                                 ret = -EFAULT;
4170                 break;
4171         case SONYPI_IOCSBRT:
4172                 if (sony_bl_props.dev == NULL) {
4173                         ret = -EIO;
4174                         break;
4175                 }
4176                 if (copy_from_user(&val8, argp, sizeof(val8))) {
4177                         ret = -EFAULT;
4178                         break;
4179                 }
4180                 value = (val8 >> 5) + 1;
4181                 if (sony_nc_int_call(sony_nc_acpi_handle, "SBRT", &value,
4182                                         NULL)) {
4183                         ret = -EIO;
4184                         break;
4185                 }
4186                 /* sync the backlight device status */
4187                 sony_bl_props.dev->props.brightness =
4188                     sony_backlight_get_brightness(sony_bl_props.dev);
4189                 break;
4190         case SONYPI_IOCGBAT1CAP:
4191                 if (ec_read16(SONYPI_BAT1_FULL, &val16)) {
4192                         ret = -EIO;
4193                         break;
4194                 }
4195                 if (copy_to_user(argp, &val16, sizeof(val16)))
4196                         ret = -EFAULT;
4197                 break;
4198         case SONYPI_IOCGBAT1REM:
4199                 if (ec_read16(SONYPI_BAT1_LEFT, &val16)) {
4200                         ret = -EIO;
4201                         break;
4202                 }
4203                 if (copy_to_user(argp, &val16, sizeof(val16)))
4204                         ret = -EFAULT;
4205                 break;
4206         case SONYPI_IOCGBAT2CAP:
4207                 if (ec_read16(SONYPI_BAT2_FULL, &val16)) {
4208                         ret = -EIO;
4209                         break;
4210                 }
4211                 if (copy_to_user(argp, &val16, sizeof(val16)))
4212                         ret = -EFAULT;
4213                 break;
4214         case SONYPI_IOCGBAT2REM:
4215                 if (ec_read16(SONYPI_BAT2_LEFT, &val16)) {
4216                         ret = -EIO;
4217                         break;
4218                 }
4219                 if (copy_to_user(argp, &val16, sizeof(val16)))
4220                         ret = -EFAULT;
4221                 break;
4222         case SONYPI_IOCGBATFLAGS:
4223                 if (ec_read(SONYPI_BAT_FLAGS, &val8)) {
4224                         ret = -EIO;
4225                         break;
4226                 }
4227                 val8 &= 0x07;
4228                 if (copy_to_user(argp, &val8, sizeof(val8)))
4229                         ret = -EFAULT;
4230                 break;
4231         case SONYPI_IOCGBLUE:
4232                 val8 = spic_dev.bluetooth_power;
4233                 if (copy_to_user(argp, &val8, sizeof(val8)))
4234                         ret = -EFAULT;
4235                 break;
4236         case SONYPI_IOCSBLUE:
4237                 if (copy_from_user(&val8, argp, sizeof(val8))) {
4238                         ret = -EFAULT;
4239                         break;
4240                 }
4241                 __sony_pic_set_bluetoothpower(val8);
4242                 break;
4243         /* FAN Controls */
4244         case SONYPI_IOCGFAN:
4245                 if (sony_pic_get_fanspeed(&val8)) {
4246                         ret = -EIO;
4247                         break;
4248                 }
4249                 if (copy_to_user(argp, &val8, sizeof(val8)))
4250                         ret = -EFAULT;
4251                 break;
4252         case SONYPI_IOCSFAN:
4253                 if (copy_from_user(&val8, argp, sizeof(val8))) {
4254                         ret = -EFAULT;
4255                         break;
4256                 }
4257                 if (sony_pic_set_fanspeed(val8))
4258                         ret = -EIO;
4259                 break;
4260         /* GET Temperature (useful under APM) */
4261         case SONYPI_IOCGTEMP:
4262                 if (ec_read(SONYPI_TEMP_STATUS, &val8)) {
4263                         ret = -EIO;
4264                         break;
4265                 }
4266                 if (copy_to_user(argp, &val8, sizeof(val8)))
4267                         ret = -EFAULT;
4268                 break;
4269         default:
4270                 ret = -EINVAL;
4271         }
4272         mutex_unlock(&spic_dev.lock);
4273         return ret;
4274 }
4275
4276 static const struct file_operations sonypi_misc_fops = {
4277         .owner          = THIS_MODULE,
4278         .read           = sonypi_misc_read,
4279         .poll           = sonypi_misc_poll,
4280         .open           = sonypi_misc_open,
4281         .release        = sonypi_misc_release,
4282         .fasync         = sonypi_misc_fasync,
4283         .unlocked_ioctl = sonypi_misc_ioctl,
4284         .llseek         = noop_llseek,
4285 };
4286
4287 static struct miscdevice sonypi_misc_device = {
4288         .minor          = MISC_DYNAMIC_MINOR,
4289         .name           = "sonypi",
4290         .fops           = &sonypi_misc_fops,
4291 };
4292
4293 static void sonypi_compat_report_event(u8 event)
4294 {
4295         kfifo_in_locked(&sonypi_compat.fifo, (unsigned char *)&event,
4296                         sizeof(event), &sonypi_compat.fifo_lock);
4297         kill_fasync(&sonypi_compat.fifo_async, SIGIO, POLL_IN);
4298         wake_up_interruptible(&sonypi_compat.fifo_proc_list);
4299 }
4300
4301 static int sonypi_compat_init(void)
4302 {
4303         int error;
4304
4305         spin_lock_init(&sonypi_compat.fifo_lock);
4306         error =
4307          kfifo_alloc(&sonypi_compat.fifo, SONY_LAPTOP_BUF_SIZE, GFP_KERNEL);
4308         if (error) {
4309                 pr_err("kfifo_alloc failed\n");
4310                 return error;
4311         }
4312
4313         init_waitqueue_head(&sonypi_compat.fifo_proc_list);
4314
4315         if (minor != -1)
4316                 sonypi_misc_device.minor = minor;
4317         error = misc_register(&sonypi_misc_device);
4318         if (error) {
4319                 pr_err("misc_register failed\n");
4320                 goto err_free_kfifo;
4321         }
4322         if (minor == -1)
4323                 pr_info("device allocated minor is %d\n",
4324                         sonypi_misc_device.minor);
4325
4326         return 0;
4327
4328 err_free_kfifo:
4329         kfifo_free(&sonypi_compat.fifo);
4330         return error;
4331 }
4332
4333 static void sonypi_compat_exit(void)
4334 {
4335         misc_deregister(&sonypi_misc_device);
4336         kfifo_free(&sonypi_compat.fifo);
4337 }
4338 #else
4339 static int sonypi_compat_init(void) { return 0; }
4340 static void sonypi_compat_exit(void) { }
4341 static void sonypi_compat_report_event(u8 event) { }
4342 #endif /* CONFIG_SONYPI_COMPAT */
4343
4344 /*
4345  * ACPI callbacks
4346  */
4347 static acpi_status
4348 sony_pic_read_possible_resource(struct acpi_resource *resource, void *context)
4349 {
4350         u32 i;
4351         struct sony_pic_dev *dev = (struct sony_pic_dev *)context;
4352
4353         switch (resource->type) {
4354         case ACPI_RESOURCE_TYPE_START_DEPENDENT:
4355                 {
4356                         /* start IO enumeration */
4357                         struct sony_pic_ioport *ioport = kzalloc(sizeof(*ioport), GFP_KERNEL);
4358                         if (!ioport)
4359                                 return AE_ERROR;
4360
4361                         list_add(&ioport->list, &dev->ioports);
4362                         return AE_OK;
4363                 }
4364
4365         case ACPI_RESOURCE_TYPE_END_DEPENDENT:
4366                 /* end IO enumeration */
4367                 return AE_OK;
4368
4369         case ACPI_RESOURCE_TYPE_IRQ:
4370                 {
4371                         struct acpi_resource_irq *p = &resource->data.irq;
4372                         struct sony_pic_irq *interrupt = NULL;
4373                         if (!p || !p->interrupt_count) {
4374                                 /*
4375                                  * IRQ descriptors may have no IRQ# bits set,
4376                                  * particularly those those w/ _STA disabled
4377                                  */
4378                                 dprintk("Blank IRQ resource\n");
4379                                 return AE_OK;
4380                         }
4381                         for (i = 0; i < p->interrupt_count; i++) {
4382                                 if (!p->interrupts[i]) {
4383                                         pr_warn("Invalid IRQ %d\n",
4384                                                 p->interrupts[i]);
4385                                         continue;
4386                                 }
4387                                 interrupt = kzalloc(sizeof(*interrupt),
4388                                                 GFP_KERNEL);
4389                                 if (!interrupt)
4390                                         return AE_ERROR;
4391
4392                                 list_add(&interrupt->list, &dev->interrupts);
4393                                 interrupt->irq.triggering = p->triggering;
4394                                 interrupt->irq.polarity = p->polarity;
4395                                 interrupt->irq.sharable = p->sharable;
4396                                 interrupt->irq.interrupt_count = 1;
4397                                 interrupt->irq.interrupts[0] = p->interrupts[i];
4398                         }
4399                         return AE_OK;
4400                 }
4401         case ACPI_RESOURCE_TYPE_IO:
4402                 {
4403                         struct acpi_resource_io *io = &resource->data.io;
4404                         struct sony_pic_ioport *ioport =
4405                                 list_first_entry(&dev->ioports, struct sony_pic_ioport, list);
4406                         if (!io) {
4407                                 dprintk("Blank IO resource\n");
4408                                 return AE_OK;
4409                         }
4410
4411                         if (!ioport->io1.minimum) {
4412                                 memcpy(&ioport->io1, io, sizeof(*io));
4413                                 dprintk("IO1 at 0x%.4x (0x%.2x)\n", ioport->io1.minimum,
4414                                                 ioport->io1.address_length);
4415                         }
4416                         else if (!ioport->io2.minimum) {
4417                                 memcpy(&ioport->io2, io, sizeof(*io));
4418                                 dprintk("IO2 at 0x%.4x (0x%.2x)\n", ioport->io2.minimum,
4419                                                 ioport->io2.address_length);
4420                         }
4421                         else {
4422                                 pr_err("Unknown SPIC Type, more than 2 IO Ports\n");
4423                                 return AE_ERROR;
4424                         }
4425                         return AE_OK;
4426                 }
4427         default:
4428                 dprintk("Resource %d isn't an IRQ nor an IO port\n",
4429                         resource->type);
4430
4431         case ACPI_RESOURCE_TYPE_END_TAG:
4432                 return AE_OK;
4433         }
4434         return AE_CTRL_TERMINATE;
4435 }
4436
4437 static int sony_pic_possible_resources(struct acpi_device *device)
4438 {
4439         int result = 0;
4440         acpi_status status = AE_OK;
4441
4442         if (!device)
4443                 return -EINVAL;
4444
4445         /* get device status */
4446         /* see acpi_pci_link_get_current acpi_pci_link_get_possible */
4447         dprintk("Evaluating _STA\n");
4448         result = acpi_bus_get_status(device);
4449         if (result) {
4450                 pr_warn("Unable to read status\n");
4451                 goto end;
4452         }
4453
4454         if (!device->status.enabled)
4455                 dprintk("Device disabled\n");
4456         else
4457                 dprintk("Device enabled\n");
4458
4459         /*
4460          * Query and parse 'method'
4461          */
4462         dprintk("Evaluating %s\n", METHOD_NAME__PRS);
4463         status = acpi_walk_resources(device->handle, METHOD_NAME__PRS,
4464                         sony_pic_read_possible_resource, &spic_dev);
4465         if (ACPI_FAILURE(status)) {
4466                 pr_warn("Failure evaluating %s\n", METHOD_NAME__PRS);
4467                 result = -ENODEV;
4468         }
4469 end:
4470         return result;
4471 }
4472
4473 /*
4474  *  Disable the spic device by calling its _DIS method
4475  */
4476 static int sony_pic_disable(struct acpi_device *device)
4477 {
4478         acpi_status ret = acpi_evaluate_object(device->handle, "_DIS", NULL,
4479                                                NULL);
4480
4481         if (ACPI_FAILURE(ret) && ret != AE_NOT_FOUND)
4482                 return -ENXIO;
4483
4484         dprintk("Device disabled\n");
4485         return 0;
4486 }
4487
4488
4489 /*
4490  *  Based on drivers/acpi/pci_link.c:acpi_pci_link_set
4491  *
4492  *  Call _SRS to set current resources
4493  */
4494 static int sony_pic_enable(struct acpi_device *device,
4495                 struct sony_pic_ioport *ioport, struct sony_pic_irq *irq)
4496 {
4497         acpi_status status;
4498         int result = 0;
4499         /* Type 1 resource layout is:
4500          *    IO
4501          *    IO
4502          *    IRQNoFlags
4503          *    End
4504          *
4505          * Type 2 and 3 resource layout is:
4506          *    IO
4507          *    IRQNoFlags
4508          *    End
4509          */
4510         struct {
4511                 struct acpi_resource res1;
4512                 struct acpi_resource res2;
4513                 struct acpi_resource res3;
4514                 struct acpi_resource res4;
4515         } *resource;
4516         struct acpi_buffer buffer = { 0, NULL };
4517
4518         if (!ioport || !irq)
4519                 return -EINVAL;
4520
4521         /* init acpi_buffer */
4522         resource = kzalloc(sizeof(*resource) + 1, GFP_KERNEL);
4523         if (!resource)
4524                 return -ENOMEM;
4525
4526         buffer.length = sizeof(*resource) + 1;
4527         buffer.pointer = resource;
4528
4529         /* setup Type 1 resources */
4530         if (spic_dev.model == SONYPI_DEVICE_TYPE1) {
4531
4532                 /* setup io resources */
4533                 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
4534                 resource->res1.length = sizeof(struct acpi_resource);
4535                 memcpy(&resource->res1.data.io, &ioport->io1,
4536                                 sizeof(struct acpi_resource_io));
4537
4538                 resource->res2.type = ACPI_RESOURCE_TYPE_IO;
4539                 resource->res2.length = sizeof(struct acpi_resource);
4540                 memcpy(&resource->res2.data.io, &ioport->io2,
4541                                 sizeof(struct acpi_resource_io));
4542
4543                 /* setup irq resource */
4544                 resource->res3.type = ACPI_RESOURCE_TYPE_IRQ;
4545                 resource->res3.length = sizeof(struct acpi_resource);
4546                 memcpy(&resource->res3.data.irq, &irq->irq,
4547                                 sizeof(struct acpi_resource_irq));
4548                 /* we requested a shared irq */
4549                 resource->res3.data.irq.sharable = ACPI_SHARED;
4550
4551                 resource->res4.type = ACPI_RESOURCE_TYPE_END_TAG;
4552                 resource->res4.length = sizeof(struct acpi_resource);
4553         }
4554         /* setup Type 2/3 resources */
4555         else {
4556                 /* setup io resource */
4557                 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
4558                 resource->res1.length = sizeof(struct acpi_resource);
4559                 memcpy(&resource->res1.data.io, &ioport->io1,
4560                                 sizeof(struct acpi_resource_io));
4561
4562                 /* setup irq resource */
4563                 resource->res2.type = ACPI_RESOURCE_TYPE_IRQ;
4564                 resource->res2.length = sizeof(struct acpi_resource);
4565                 memcpy(&resource->res2.data.irq, &irq->irq,
4566                                 sizeof(struct acpi_resource_irq));
4567                 /* we requested a shared irq */
4568                 resource->res2.data.irq.sharable = ACPI_SHARED;
4569
4570                 resource->res3.type = ACPI_RESOURCE_TYPE_END_TAG;
4571                 resource->res3.length = sizeof(struct acpi_resource);
4572         }
4573
4574         /* Attempt to set the resource */
4575         dprintk("Evaluating _SRS\n");
4576         status = acpi_set_current_resources(device->handle, &buffer);
4577
4578         /* check for total failure */
4579         if (ACPI_FAILURE(status)) {
4580                 pr_err("Error evaluating _SRS\n");
4581                 result = -ENODEV;
4582                 goto end;
4583         }
4584
4585         /* Necessary device initializations calls (from sonypi) */
4586         sony_pic_call1(0x82);
4587         sony_pic_call2(0x81, 0xff);
4588         sony_pic_call1(compat ? 0x92 : 0x82);
4589
4590 end:
4591         kfree(resource);
4592         return result;
4593 }
4594
4595 /*****************
4596  *
4597  * ISR: some event is available
4598  *
4599  *****************/
4600 static irqreturn_t sony_pic_irq(int irq, void *dev_id)
4601 {
4602         int i, j;
4603         u8 ev = 0;
4604         u8 data_mask = 0;
4605         u8 device_event = 0;
4606
4607         struct sony_pic_dev *dev = (struct sony_pic_dev *) dev_id;
4608
4609         ev = inb_p(dev->cur_ioport->io1.minimum);
4610         if (dev->cur_ioport->io2.minimum)
4611                 data_mask = inb_p(dev->cur_ioport->io2.minimum);
4612         else
4613                 data_mask = inb_p(dev->cur_ioport->io1.minimum +
4614                                 dev->evport_offset);
4615
4616         dprintk("event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
4617                         ev, data_mask, dev->cur_ioport->io1.minimum,
4618                         dev->evport_offset);
4619
4620         if (ev == 0x00 || ev == 0xff)
4621                 return IRQ_HANDLED;
4622
4623         for (i = 0; dev->event_types[i].mask; i++) {
4624
4625                 if ((data_mask & dev->event_types[i].data) !=
4626                     dev->event_types[i].data)
4627                         continue;
4628
4629                 if (!(mask & dev->event_types[i].mask))
4630                         continue;
4631
4632                 for (j = 0; dev->event_types[i].events[j].event; j++) {
4633                         if (ev == dev->event_types[i].events[j].data) {
4634                                 device_event =
4635                                         dev->event_types[i].events[j].event;
4636                                 /* some events may require ignoring */
4637                                 if (!device_event)
4638                                         return IRQ_HANDLED;
4639                                 goto found;
4640                         }
4641                 }
4642         }
4643         /* Still not able to decode the event try to pass
4644          * it over to the minidriver
4645          */
4646         if (dev->handle_irq && dev->handle_irq(data_mask, ev) == 0)
4647                 return IRQ_HANDLED;
4648
4649         dprintk("unknown event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
4650                         ev, data_mask, dev->cur_ioport->io1.minimum,
4651                         dev->evport_offset);
4652         return IRQ_HANDLED;
4653
4654 found:
4655         sony_laptop_report_input_event(device_event);
4656         sonypi_compat_report_event(device_event);
4657         return IRQ_HANDLED;
4658 }
4659
4660 /*****************
4661  *
4662  *  ACPI driver
4663  *
4664  *****************/
4665 static int sony_pic_remove(struct acpi_device *device)
4666 {
4667         struct sony_pic_ioport *io, *tmp_io;
4668         struct sony_pic_irq *irq, *tmp_irq;
4669
4670         if (sony_pic_disable(device)) {
4671                 pr_err("Couldn't disable device\n");
4672                 return -ENXIO;
4673         }
4674
4675         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
4676         release_region(spic_dev.cur_ioport->io1.minimum,
4677                         spic_dev.cur_ioport->io1.address_length);
4678         if (spic_dev.cur_ioport->io2.minimum)
4679                 release_region(spic_dev.cur_ioport->io2.minimum,
4680                                 spic_dev.cur_ioport->io2.address_length);
4681
4682         sonypi_compat_exit();
4683
4684         sony_laptop_remove_input();
4685
4686         /* pf attrs */
4687         sysfs_remove_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
4688         sony_pf_remove();
4689
4690         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
4691                 list_del(&io->list);
4692                 kfree(io);
4693         }
4694         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
4695                 list_del(&irq->list);
4696                 kfree(irq);
4697         }
4698         spic_dev.cur_ioport = NULL;
4699         spic_dev.cur_irq = NULL;
4700
4701         dprintk(SONY_PIC_DRIVER_NAME " removed.\n");
4702         return 0;
4703 }
4704
4705 static int sony_pic_add(struct acpi_device *device)
4706 {
4707         int result;
4708         struct sony_pic_ioport *io, *tmp_io;
4709         struct sony_pic_irq *irq, *tmp_irq;
4710
4711         spic_dev.acpi_dev = device;
4712         strcpy(acpi_device_class(device), "sony/hotkey");
4713         sony_pic_detect_device_type(&spic_dev);
4714         mutex_init(&spic_dev.lock);
4715
4716         /* read _PRS resources */
4717         result = sony_pic_possible_resources(device);
4718         if (result) {
4719                 pr_err("Unable to read possible resources\n");
4720                 goto err_free_resources;
4721         }
4722
4723         /* setup input devices and helper fifo */
4724         result = sony_laptop_setup_input(device);
4725         if (result) {
4726                 pr_err("Unable to create input devices\n");
4727                 goto err_free_resources;
4728         }
4729
4730         result = sonypi_compat_init();
4731         if (result)
4732                 goto err_remove_input;
4733
4734         /* request io port */
4735         list_for_each_entry_reverse(io, &spic_dev.ioports, list) {
4736                 if (request_region(io->io1.minimum, io->io1.address_length,
4737                                         "Sony Programmable I/O Device")) {
4738                         dprintk("I/O port1: 0x%.4x (0x%.4x) + 0x%.2x\n",
4739                                         io->io1.minimum, io->io1.maximum,
4740                                         io->io1.address_length);
4741                         /* Type 1 have 2 ioports */
4742                         if (io->io2.minimum) {
4743                                 if (request_region(io->io2.minimum,
4744                                                 io->io2.address_length,
4745                                                 "Sony Programmable I/O Device")) {
4746                                         dprintk("I/O port2: 0x%.4x (0x%.4x) + 0x%.2x\n",
4747                                                         io->io2.minimum, io->io2.maximum,
4748                                                         io->io2.address_length);
4749                                         spic_dev.cur_ioport = io;
4750                                         break;
4751                                 }
4752                                 else {
4753                                         dprintk("Unable to get I/O port2: "
4754                                                         "0x%.4x (0x%.4x) + 0x%.2x\n",
4755                                                         io->io2.minimum, io->io2.maximum,
4756                                                         io->io2.address_length);
4757                                         release_region(io->io1.minimum,
4758                                                         io->io1.address_length);
4759                                 }
4760                         }
4761                         else {
4762                                 spic_dev.cur_ioport = io;
4763                                 break;
4764                         }
4765                 }
4766         }
4767         if (!spic_dev.cur_ioport) {
4768                 pr_err("Failed to request_region\n");
4769                 result = -ENODEV;
4770                 goto err_remove_compat;
4771         }
4772
4773         /* request IRQ */
4774         list_for_each_entry_reverse(irq, &spic_dev.interrupts, list) {
4775                 if (!request_irq(irq->irq.interrupts[0], sony_pic_irq,
4776                                         0, "sony-laptop", &spic_dev)) {
4777                         dprintk("IRQ: %d - triggering: %d - "
4778                                         "polarity: %d - shr: %d\n",
4779                                         irq->irq.interrupts[0],
4780                                         irq->irq.triggering,
4781                                         irq->irq.polarity,
4782                                         irq->irq.sharable);
4783                         spic_dev.cur_irq = irq;
4784                         break;
4785                 }
4786         }
4787         if (!spic_dev.cur_irq) {
4788                 pr_err("Failed to request_irq\n");
4789                 result = -ENODEV;
4790                 goto err_release_region;
4791         }
4792
4793         /* set resource status _SRS */
4794         result = sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
4795         if (result) {
4796                 pr_err("Couldn't enable device\n");
4797                 goto err_free_irq;
4798         }
4799
4800         spic_dev.bluetooth_power = -1;
4801         /* create device attributes */
4802         result = sony_pf_add();
4803         if (result)
4804                 goto err_disable_device;
4805
4806         result = sysfs_create_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
4807         if (result)
4808                 goto err_remove_pf;
4809
4810         pr_info("SPIC setup done.\n");
4811         return 0;
4812
4813 err_remove_pf:
4814         sony_pf_remove();
4815
4816 err_disable_device:
4817         sony_pic_disable(device);
4818
4819 err_free_irq:
4820         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
4821
4822 err_release_region:
4823         release_region(spic_dev.cur_ioport->io1.minimum,
4824                         spic_dev.cur_ioport->io1.address_length);
4825         if (spic_dev.cur_ioport->io2.minimum)
4826                 release_region(spic_dev.cur_ioport->io2.minimum,
4827                                 spic_dev.cur_ioport->io2.address_length);
4828
4829 err_remove_compat:
4830         sonypi_compat_exit();
4831
4832 err_remove_input:
4833         sony_laptop_remove_input();
4834
4835 err_free_resources:
4836         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
4837                 list_del(&io->list);
4838                 kfree(io);
4839         }
4840         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
4841                 list_del(&irq->list);
4842                 kfree(irq);
4843         }
4844         spic_dev.cur_ioport = NULL;
4845         spic_dev.cur_irq = NULL;
4846
4847         return result;
4848 }
4849
4850 #ifdef CONFIG_PM_SLEEP
4851 static int sony_pic_suspend(struct device *dev)
4852 {
4853         if (sony_pic_disable(to_acpi_device(dev)))
4854                 return -ENXIO;
4855         return 0;
4856 }
4857
4858 static int sony_pic_resume(struct device *dev)
4859 {
4860         sony_pic_enable(to_acpi_device(dev),
4861                         spic_dev.cur_ioport, spic_dev.cur_irq);
4862         return 0;
4863 }
4864 #endif
4865
4866 static SIMPLE_DEV_PM_OPS(sony_pic_pm, sony_pic_suspend, sony_pic_resume);
4867
4868 static const struct acpi_device_id sony_pic_device_ids[] = {
4869         {SONY_PIC_HID, 0},
4870         {"", 0},
4871 };
4872
4873 static struct acpi_driver sony_pic_driver = {
4874         .name = SONY_PIC_DRIVER_NAME,
4875         .class = SONY_PIC_CLASS,
4876         .ids = sony_pic_device_ids,
4877         .owner = THIS_MODULE,
4878         .ops = {
4879                 .add = sony_pic_add,
4880                 .remove = sony_pic_remove,
4881                 },
4882         .drv.pm = &sony_pic_pm,
4883 };
4884
4885 static const struct dmi_system_id sonypi_dmi_table[] __initconst = {
4886         {
4887                 .ident = "Sony Vaio",
4888                 .matches = {
4889                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
4890                         DMI_MATCH(DMI_PRODUCT_NAME, "PCG-"),
4891                 },
4892         },
4893         {
4894                 .ident = "Sony Vaio",
4895                 .matches = {
4896                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
4897                         DMI_MATCH(DMI_PRODUCT_NAME, "VGN-"),
4898                 },
4899         },
4900         { }
4901 };
4902
4903 static int __init sony_laptop_init(void)
4904 {
4905         int result;
4906
4907         if (!no_spic && dmi_check_system(sonypi_dmi_table)) {
4908                 result = acpi_bus_register_driver(&sony_pic_driver);
4909                 if (result) {
4910                         pr_err("Unable to register SPIC driver\n");
4911                         goto out;
4912                 }
4913                 spic_drv_registered = 1;
4914         }
4915
4916         result = acpi_bus_register_driver(&sony_nc_driver);
4917         if (result) {
4918                 pr_err("Unable to register SNC driver\n");
4919                 goto out_unregister_pic;
4920         }
4921
4922         return 0;
4923
4924 out_unregister_pic:
4925         if (spic_drv_registered)
4926                 acpi_bus_unregister_driver(&sony_pic_driver);
4927 out:
4928         return result;
4929 }
4930
4931 static void __exit sony_laptop_exit(void)
4932 {
4933         acpi_bus_unregister_driver(&sony_nc_driver);
4934         if (spic_drv_registered)
4935                 acpi_bus_unregister_driver(&sony_pic_driver);
4936 }
4937
4938 module_init(sony_laptop_init);
4939 module_exit(sony_laptop_exit);