drivers/platform/x86/sony-laptop.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * ACPI Sony Notebook Control Driver (SNC and SPIC)
   4  *
   5  * Copyright (C) 2004-2005 Stelian Pop <stelian@popies.net>
   6  * Copyright (C) 2007-2009 Mattia Dongili <malattia@linux.it>
   7  *
   8  * Parts of this driver inspired from asus_acpi.c and ibm_acpi.c
   9  * which are copyrighted by their respective authors.
  10  *
  11  * The SNY6001 driver part is based on the sonypi driver which includes
  12  * material from:
  13  *
  14  * Copyright (C) 2001-2005 Stelian Pop <stelian@popies.net>
  15  *
  16  * Copyright (C) 2005 Narayanan R S <nars@kadamba.org>
  17  *
  18  * Copyright (C) 2001-2002 Alcôve <www.alcove.com>
  19  *
  20  * Copyright (C) 2001 Michael Ashley <m.ashley@unsw.edu.au>
  21  *
  22  * Copyright (C) 2001 Junichi Morita <jun1m@mars.dti.ne.jp>
  23  *
  24  * Copyright (C) 2000 Takaya Kinjo <t-kinjo@tc4.so-net.ne.jp>
  25  *
  26  * Copyright (C) 2000 Andrew Tridgell <tridge@valinux.com>
  27  *
  28  * Earlier work by Werner Almesberger, Paul `Rusty' Russell and Paul Mackerras.
  29  */
  30
  31 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  32
  33 #include <linux/kernel.h>
  34 #include <linux/module.h>
  35 #include <linux/moduleparam.h>
  36 #include <linux/init.h>
  37 #include <linux/types.h>
  38 #include <linux/backlight.h>
  39 #include <linux/platform_device.h>
  40 #include <linux/err.h>
  41 #include <linux/dmi.h>
  42 #include <linux/pci.h>
  43 #include <linux/interrupt.h>
  44 #include <linux/delay.h>
  45 #include <linux/input.h>
  46 #include <linux/kfifo.h>
  47 #include <linux/workqueue.h>
  48 #include <linux/acpi.h>
  49 #include <linux/slab.h>
  50 #include <linux/sonypi.h>
  51 #include <linux/sony-laptop.h>
  52 #include <linux/rfkill.h>
  53 #ifdef CONFIG_SONYPI_COMPAT
  54 #include <linux/poll.h>
  55 #include <linux/miscdevice.h>
  56 #endif
  57 #include <linux/uaccess.h>
  58 #include <acpi/video.h>
  59
  60 #define dprintk(fmt, ...)                       \
  61 do {                                            \
  62         if (debug)                              \
  63                 pr_warn(fmt, ##__VA_ARGS__);    \
  64 } while (0)
  65
  66 #define SONY_NC_CLASS           "sony-nc"
  67 #define SONY_NC_HID             "SNY5001"
  68 #define SONY_NC_DRIVER_NAME     "Sony Notebook Control Driver"
  69
  70 #define SONY_PIC_CLASS          "sony-pic"
  71 #define SONY_PIC_HID            "SNY6001"
  72 #define SONY_PIC_DRIVER_NAME    "Sony Programmable IO Control Driver"
  73
  74 MODULE_AUTHOR("Stelian Pop, Mattia Dongili");
  75 MODULE_DESCRIPTION("Sony laptop extras driver (SPIC and SNC ACPI device)");
  76 MODULE_LICENSE("GPL");
  77
  78 static int debug;
  79 module_param(debug, int, 0);
  80 MODULE_PARM_DESC(debug, "set this to 1 (and RTFM) if you want to help "
  81                  "the development of this driver");
  82
  83 static int no_spic;             /* = 0 */
  84 module_param(no_spic, int, 0444);
  85 MODULE_PARM_DESC(no_spic,
  86                  "set this if you don't want to enable the SPIC device");
  87
  88 static int compat;              /* = 0 */
  89 module_param(compat, int, 0444);
  90 MODULE_PARM_DESC(compat,
  91                  "set this if you want to enable backward compatibility mode");
  92
  93 static unsigned long mask = 0xffffffff;
  94 module_param(mask, ulong, 0644);
  95 MODULE_PARM_DESC(mask,
  96                  "set this to the mask of event you want to enable (see doc)");
  97
  98 static int camera;              /* = 0 */
  99 module_param(camera, int, 0444);
 100 MODULE_PARM_DESC(camera,
 101                  "set this to 1 to enable Motion Eye camera controls "
 102                  "(only use it if you have a C1VE or C1VN model)");
 103
 104 #ifdef CONFIG_SONYPI_COMPAT
 105 static int minor = -1;
 106 module_param(minor, int, 0);
 107 MODULE_PARM_DESC(minor,
 108                  "minor number of the misc device for the SPIC compatibility code, "
 109                  "default is -1 (automatic)");
 110 #endif
 111
 112 static int kbd_backlight = -1;
 113 module_param(kbd_backlight, int, 0444);
 114 MODULE_PARM_DESC(kbd_backlight,
 115                  "set this to 0 to disable keyboard backlight, "
 116                  "1 to enable it with automatic control and 2 to have it always "
 117                  "on (default: no change from current value)");
 118
 119 static int kbd_backlight_timeout = -1;
 120 module_param(kbd_backlight_timeout, int, 0444);
 121 MODULE_PARM_DESC(kbd_backlight_timeout,
 122                  "meaningful values vary from 0 to 3 and their meaning depends "
 123                  "on the model (default: no change from current value)");
 124
 125 #ifdef CONFIG_PM_SLEEP
 126 static void sony_nc_thermal_resume(void);
 127 #endif
 128 static int sony_nc_kbd_backlight_setup(struct platform_device *pd,
 129                 unsigned int handle);
 130 static void sony_nc_kbd_backlight_cleanup(struct platform_device *pd,
 131                 unsigned int handle);
 132
 133 static int sony_nc_battery_care_setup(struct platform_device *pd,
 134                 unsigned int handle);
 135 static void sony_nc_battery_care_cleanup(struct platform_device *pd);
 136
 137 static int sony_nc_thermal_setup(struct platform_device *pd);
 138 static void sony_nc_thermal_cleanup(struct platform_device *pd);
 139
 140 static int sony_nc_lid_resume_setup(struct platform_device *pd,
 141                                     unsigned int handle);
 142 static void sony_nc_lid_resume_cleanup(struct platform_device *pd);
 143
 144 static int sony_nc_gfx_switch_setup(struct platform_device *pd,
 145                 unsigned int handle);
 146 static void sony_nc_gfx_switch_cleanup(struct platform_device *pd);
 147 static int __sony_nc_gfx_switch_status_get(void);
 148
 149 static int sony_nc_highspeed_charging_setup(struct platform_device *pd);
 150 static void sony_nc_highspeed_charging_cleanup(struct platform_device *pd);
 151
 152 static int sony_nc_lowbatt_setup(struct platform_device *pd);
 153 static void sony_nc_lowbatt_cleanup(struct platform_device *pd);
 154
 155 static int sony_nc_fanspeed_setup(struct platform_device *pd);
 156 static void sony_nc_fanspeed_cleanup(struct platform_device *pd);
 157
 158 static int sony_nc_usb_charge_setup(struct platform_device *pd);
 159 static void sony_nc_usb_charge_cleanup(struct platform_device *pd);
 160
 161 static int sony_nc_panelid_setup(struct platform_device *pd);
 162 static void sony_nc_panelid_cleanup(struct platform_device *pd);
 163
 164 static int sony_nc_smart_conn_setup(struct platform_device *pd);
 165 static void sony_nc_smart_conn_cleanup(struct platform_device *pd);
 166
 167 static int sony_nc_touchpad_setup(struct platform_device *pd,
 168                                   unsigned int handle);
 169 static void sony_nc_touchpad_cleanup(struct platform_device *pd);
 170
 171 enum sony_nc_rfkill {
 172         SONY_WIFI,
 173         SONY_BLUETOOTH,
 174         SONY_WWAN,
 175         SONY_WIMAX,
 176         N_SONY_RFKILL,
 177 };
 178
 179 static int sony_rfkill_handle;
 180 static struct rfkill *sony_rfkill_devices[N_SONY_RFKILL];
 181 static int sony_rfkill_address[N_SONY_RFKILL] = {0x300, 0x500, 0x700, 0x900};
 182 static int sony_nc_rfkill_setup(struct acpi_device *device,
 183                 unsigned int handle);
 184 static void sony_nc_rfkill_cleanup(void);
 185 static void sony_nc_rfkill_update(void);
 186
 187 /*********** Input Devices ***********/
 188
 189 #define SONY_LAPTOP_BUF_SIZE    128
 190 struct sony_laptop_input_s {
 191         atomic_t                users;
 192         struct input_dev        *jog_dev;
 193         struct input_dev        *key_dev;
 194         struct kfifo            fifo;
 195         spinlock_t              fifo_lock;
 196         struct timer_list       release_key_timer;
 197 };
 198
 199 static struct sony_laptop_input_s sony_laptop_input = {
 200         .users = ATOMIC_INIT(0),
 201 };
 202
 203 struct sony_laptop_keypress {
 204         struct input_dev *dev;
 205         int key;
 206 };
 207
 208 /* Correspondance table between sonypi events
 209  * and input layer indexes in the keymap
 210  */
 211 static const int sony_laptop_input_index[] = {
 212         -1,     /*  0 no event */
 213         -1,     /*  1 SONYPI_EVENT_JOGDIAL_DOWN */
 214         -1,     /*  2 SONYPI_EVENT_JOGDIAL_UP */
 215         -1,     /*  3 SONYPI_EVENT_JOGDIAL_DOWN_PRESSED */
 216         -1,     /*  4 SONYPI_EVENT_JOGDIAL_UP_PRESSED */
 217         -1,     /*  5 SONYPI_EVENT_JOGDIAL_PRESSED */
 218         -1,     /*  6 SONYPI_EVENT_JOGDIAL_RELEASED */
 219          0,     /*  7 SONYPI_EVENT_CAPTURE_PRESSED */
 220          1,     /*  8 SONYPI_EVENT_CAPTURE_RELEASED */
 221          2,     /*  9 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
 222          3,     /* 10 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
 223          4,     /* 11 SONYPI_EVENT_FNKEY_ESC */
 224          5,     /* 12 SONYPI_EVENT_FNKEY_F1 */
 225          6,     /* 13 SONYPI_EVENT_FNKEY_F2 */
 226          7,     /* 14 SONYPI_EVENT_FNKEY_F3 */
 227          8,     /* 15 SONYPI_EVENT_FNKEY_F4 */
 228          9,     /* 16 SONYPI_EVENT_FNKEY_F5 */
 229         10,     /* 17 SONYPI_EVENT_FNKEY_F6 */
 230         11,     /* 18 SONYPI_EVENT_FNKEY_F7 */
 231         12,     /* 19 SONYPI_EVENT_FNKEY_F8 */
 232         13,     /* 20 SONYPI_EVENT_FNKEY_F9 */
 233         14,     /* 21 SONYPI_EVENT_FNKEY_F10 */
 234         15,     /* 22 SONYPI_EVENT_FNKEY_F11 */
 235         16,     /* 23 SONYPI_EVENT_FNKEY_F12 */
 236         17,     /* 24 SONYPI_EVENT_FNKEY_1 */
 237         18,     /* 25 SONYPI_EVENT_FNKEY_2 */
 238         19,     /* 26 SONYPI_EVENT_FNKEY_D */
 239         20,     /* 27 SONYPI_EVENT_FNKEY_E */
 240         21,     /* 28 SONYPI_EVENT_FNKEY_F */
 241         22,     /* 29 SONYPI_EVENT_FNKEY_S */
 242         23,     /* 30 SONYPI_EVENT_FNKEY_B */
 243         24,     /* 31 SONYPI_EVENT_BLUETOOTH_PRESSED */
 244         25,     /* 32 SONYPI_EVENT_PKEY_P1 */
 245         26,     /* 33 SONYPI_EVENT_PKEY_P2 */
 246         27,     /* 34 SONYPI_EVENT_PKEY_P3 */
 247         28,     /* 35 SONYPI_EVENT_BACK_PRESSED */
 248         -1,     /* 36 SONYPI_EVENT_LID_CLOSED */
 249         -1,     /* 37 SONYPI_EVENT_LID_OPENED */
 250         29,     /* 38 SONYPI_EVENT_BLUETOOTH_ON */
 251         30,     /* 39 SONYPI_EVENT_BLUETOOTH_OFF */
 252         31,     /* 40 SONYPI_EVENT_HELP_PRESSED */
 253         32,     /* 41 SONYPI_EVENT_FNKEY_ONLY */
 254         33,     /* 42 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
 255         34,     /* 43 SONYPI_EVENT_JOGDIAL_FAST_UP */
 256         35,     /* 44 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
 257         36,     /* 45 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
 258         37,     /* 46 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
 259         38,     /* 47 SONYPI_EVENT_JOGDIAL_VFAST_UP */
 260         39,     /* 48 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
 261         40,     /* 49 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
 262         41,     /* 50 SONYPI_EVENT_ZOOM_PRESSED */
 263         42,     /* 51 SONYPI_EVENT_THUMBPHRASE_PRESSED */
 264         43,     /* 52 SONYPI_EVENT_MEYE_FACE */
 265         44,     /* 53 SONYPI_EVENT_MEYE_OPPOSITE */
 266         45,     /* 54 SONYPI_EVENT_MEMORYSTICK_INSERT */
 267         46,     /* 55 SONYPI_EVENT_MEMORYSTICK_EJECT */
 268         -1,     /* 56 SONYPI_EVENT_ANYBUTTON_RELEASED */
 269         -1,     /* 57 SONYPI_EVENT_BATTERY_INSERT */
 270         -1,     /* 58 SONYPI_EVENT_BATTERY_REMOVE */
 271         -1,     /* 59 SONYPI_EVENT_FNKEY_RELEASED */
 272         47,     /* 60 SONYPI_EVENT_WIRELESS_ON */
 273         48,     /* 61 SONYPI_EVENT_WIRELESS_OFF */
 274         49,     /* 62 SONYPI_EVENT_ZOOM_IN_PRESSED */
 275         50,     /* 63 SONYPI_EVENT_ZOOM_OUT_PRESSED */
 276         51,     /* 64 SONYPI_EVENT_CD_EJECT_PRESSED */
 277         52,     /* 65 SONYPI_EVENT_MODEKEY_PRESSED */
 278         53,     /* 66 SONYPI_EVENT_PKEY_P4 */
 279         54,     /* 67 SONYPI_EVENT_PKEY_P5 */
 280         55,     /* 68 SONYPI_EVENT_SETTINGKEY_PRESSED */
 281         56,     /* 69 SONYPI_EVENT_VOLUME_INC_PRESSED */
 282         57,     /* 70 SONYPI_EVENT_VOLUME_DEC_PRESSED */
 283         -1,     /* 71 SONYPI_EVENT_BRIGHTNESS_PRESSED */
 284         58,     /* 72 SONYPI_EVENT_MEDIA_PRESSED */
 285         59,     /* 72 SONYPI_EVENT_VENDOR_PRESSED */
 286 };
 287
 288 static int sony_laptop_input_keycode_map[] = {
 289         KEY_CAMERA,     /*  0 SONYPI_EVENT_CAPTURE_PRESSED */
 290         KEY_RESERVED,   /*  1 SONYPI_EVENT_CAPTURE_RELEASED */
 291         KEY_RESERVED,   /*  2 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
 292         KEY_RESERVED,   /*  3 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
 293         KEY_FN_ESC,     /*  4 SONYPI_EVENT_FNKEY_ESC */
 294         KEY_FN_F1,      /*  5 SONYPI_EVENT_FNKEY_F1 */
 295         KEY_FN_F2,      /*  6 SONYPI_EVENT_FNKEY_F2 */
 296         KEY_FN_F3,      /*  7 SONYPI_EVENT_FNKEY_F3 */
 297         KEY_FN_F4,      /*  8 SONYPI_EVENT_FNKEY_F4 */
 298         KEY_FN_F5,      /*  9 SONYPI_EVENT_FNKEY_F5 */
 299         KEY_FN_F6,      /* 10 SONYPI_EVENT_FNKEY_F6 */
 300         KEY_FN_F7,      /* 11 SONYPI_EVENT_FNKEY_F7 */
 301         KEY_FN_F8,      /* 12 SONYPI_EVENT_FNKEY_F8 */
 302         KEY_FN_F9,      /* 13 SONYPI_EVENT_FNKEY_F9 */
 303         KEY_FN_F10,     /* 14 SONYPI_EVENT_FNKEY_F10 */
 304         KEY_FN_F11,     /* 15 SONYPI_EVENT_FNKEY_F11 */
 305         KEY_FN_F12,     /* 16 SONYPI_EVENT_FNKEY_F12 */
 306         KEY_FN_1,       /* 17 SONYPI_EVENT_FNKEY_1 */
 307         KEY_FN_2,       /* 18 SONYPI_EVENT_FNKEY_2 */
 308         KEY_FN_D,       /* 19 SONYPI_EVENT_FNKEY_D */
 309         KEY_FN_E,       /* 20 SONYPI_EVENT_FNKEY_E */
 310         KEY_FN_F,       /* 21 SONYPI_EVENT_FNKEY_F */
 311         KEY_FN_S,       /* 22 SONYPI_EVENT_FNKEY_S */
 312         KEY_FN_B,       /* 23 SONYPI_EVENT_FNKEY_B */
 313         KEY_BLUETOOTH,  /* 24 SONYPI_EVENT_BLUETOOTH_PRESSED */
 314         KEY_PROG1,      /* 25 SONYPI_EVENT_PKEY_P1 */
 315         KEY_PROG2,      /* 26 SONYPI_EVENT_PKEY_P2 */
 316         KEY_PROG3,      /* 27 SONYPI_EVENT_PKEY_P3 */
 317         KEY_BACK,       /* 28 SONYPI_EVENT_BACK_PRESSED */
 318         KEY_BLUETOOTH,  /* 29 SONYPI_EVENT_BLUETOOTH_ON */
 319         KEY_BLUETOOTH,  /* 30 SONYPI_EVENT_BLUETOOTH_OFF */
 320         KEY_HELP,       /* 31 SONYPI_EVENT_HELP_PRESSED */
 321         KEY_FN,         /* 32 SONYPI_EVENT_FNKEY_ONLY */
 322         KEY_RESERVED,   /* 33 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
 323         KEY_RESERVED,   /* 34 SONYPI_EVENT_JOGDIAL_FAST_UP */
 324         KEY_RESERVED,   /* 35 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
 325         KEY_RESERVED,   /* 36 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
 326         KEY_RESERVED,   /* 37 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
 327         KEY_RESERVED,   /* 38 SONYPI_EVENT_JOGDIAL_VFAST_UP */
 328         KEY_RESERVED,   /* 39 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
 329         KEY_RESERVED,   /* 40 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
 330         KEY_ZOOM,       /* 41 SONYPI_EVENT_ZOOM_PRESSED */
 331         BTN_THUMB,      /* 42 SONYPI_EVENT_THUMBPHRASE_PRESSED */
 332         KEY_RESERVED,   /* 43 SONYPI_EVENT_MEYE_FACE */
 333         KEY_RESERVED,   /* 44 SONYPI_EVENT_MEYE_OPPOSITE */
 334         KEY_RESERVED,   /* 45 SONYPI_EVENT_MEMORYSTICK_INSERT */
 335         KEY_RESERVED,   /* 46 SONYPI_EVENT_MEMORYSTICK_EJECT */
 336         KEY_WLAN,       /* 47 SONYPI_EVENT_WIRELESS_ON */
 337         KEY_WLAN,       /* 48 SONYPI_EVENT_WIRELESS_OFF */
 338         KEY_ZOOMIN,     /* 49 SONYPI_EVENT_ZOOM_IN_PRESSED */
 339         KEY_ZOOMOUT,    /* 50 SONYPI_EVENT_ZOOM_OUT_PRESSED */
 340         KEY_EJECTCD,    /* 51 SONYPI_EVENT_CD_EJECT_PRESSED */
 341         KEY_F13,        /* 52 SONYPI_EVENT_MODEKEY_PRESSED */
 342         KEY_PROG4,      /* 53 SONYPI_EVENT_PKEY_P4 */
 343         KEY_F14,        /* 54 SONYPI_EVENT_PKEY_P5 */
 344         KEY_F15,        /* 55 SONYPI_EVENT_SETTINGKEY_PRESSED */
 345         KEY_VOLUMEUP,   /* 56 SONYPI_EVENT_VOLUME_INC_PRESSED */
 346         KEY_VOLUMEDOWN, /* 57 SONYPI_EVENT_VOLUME_DEC_PRESSED */
 347         KEY_MEDIA,      /* 58 SONYPI_EVENT_MEDIA_PRESSED */
 348         KEY_VENDOR,     /* 59 SONYPI_EVENT_VENDOR_PRESSED */
 349 };
 350
 351 /* release buttons after a short delay if pressed */
 352 static void do_sony_laptop_release_key(struct timer_list *unused)
 353 {
 354         struct sony_laptop_keypress kp;
 355         unsigned long flags;
 356
 357         spin_lock_irqsave(&sony_laptop_input.fifo_lock, flags);
 358
 359         if (kfifo_out(&sony_laptop_input.fifo,
 360                       (unsigned char *)&kp, sizeof(kp)) == sizeof(kp)) {
 361                 input_report_key(kp.dev, kp.key, 0);
 362                 input_sync(kp.dev);
 363         }
 364
 365         /* If there is something in the fifo schedule next release. */
 366         if (kfifo_len(&sony_laptop_input.fifo) != 0)
 367                 mod_timer(&sony_laptop_input.release_key_timer,
 368                           jiffies + msecs_to_jiffies(10));
 369
 370         spin_unlock_irqrestore(&sony_laptop_input.fifo_lock, flags);
 371 }
 372
 373 /* forward event to the input subsystem */
 374 static void sony_laptop_report_input_event(u8 event)
 375 {
 376         struct input_dev *jog_dev = sony_laptop_input.jog_dev;
 377         struct input_dev *key_dev = sony_laptop_input.key_dev;
 378         struct sony_laptop_keypress kp = { NULL };
 379         int scancode = -1;
 380
 381         if (event == SONYPI_EVENT_FNKEY_RELEASED ||
 382                         event == SONYPI_EVENT_ANYBUTTON_RELEASED) {
 383                 /* Nothing, not all VAIOs generate this event */
 384                 return;
 385         }
 386
 387         /* report events */
 388         switch (event) {
 389         /* jog_dev events */
 390         case SONYPI_EVENT_JOGDIAL_UP:
 391         case SONYPI_EVENT_JOGDIAL_UP_PRESSED:
 392                 input_report_rel(jog_dev, REL_WHEEL, 1);
 393                 input_sync(jog_dev);
 394                 return;
 395
 396         case SONYPI_EVENT_JOGDIAL_DOWN:
 397         case SONYPI_EVENT_JOGDIAL_DOWN_PRESSED:
 398                 input_report_rel(jog_dev, REL_WHEEL, -1);
 399                 input_sync(jog_dev);
 400                 return;
 401
 402         /* key_dev events */
 403         case SONYPI_EVENT_JOGDIAL_PRESSED:
 404                 kp.key = BTN_MIDDLE;
 405                 kp.dev = jog_dev;
 406                 break;
 407
 408         default:
 409                 if (event >= ARRAY_SIZE(sony_laptop_input_index)) {
 410                         dprintk("sony_laptop_report_input_event, event not known: %d\n", event);
 411                         break;
 412                 }
 413                 if ((scancode = sony_laptop_input_index[event]) != -1) {
 414                         kp.key = sony_laptop_input_keycode_map[scancode];
 415                         if (kp.key != KEY_UNKNOWN)
 416                                 kp.dev = key_dev;
 417                 }
 418                 break;
 419         }
 420
 421         if (kp.dev) {
 422                 /* if we have a scancode we emit it so we can always
 423                     remap the key */
 424                 if (scancode != -1)
 425                         input_event(kp.dev, EV_MSC, MSC_SCAN, scancode);
 426                 input_report_key(kp.dev, kp.key, 1);
 427                 input_sync(kp.dev);
 428
 429                 /* schedule key release */
 430                 kfifo_in_locked(&sony_laptop_input.fifo,
 431                                 (unsigned char *)&kp, sizeof(kp),
 432                                 &sony_laptop_input.fifo_lock);
 433                 mod_timer(&sony_laptop_input.release_key_timer,
 434                           jiffies + msecs_to_jiffies(10));
 435         } else
 436                 dprintk("unknown input event %.2x\n", event);
 437 }
 438
 439 static int sony_laptop_setup_input(struct acpi_device *acpi_device)
 440 {
 441         struct input_dev *jog_dev;
 442         struct input_dev *key_dev;
 443         int i;
 444         int error;
 445
 446         /* don't run again if already initialized */
 447         if (atomic_add_return(1, &sony_laptop_input.users) > 1)
 448                 return 0;
 449
 450         /* kfifo */
 451         spin_lock_init(&sony_laptop_input.fifo_lock);
 452         error = kfifo_alloc(&sony_laptop_input.fifo,
 453                             SONY_LAPTOP_BUF_SIZE, GFP_KERNEL);
 454         if (error) {
 455                 pr_err("kfifo_alloc failed\n");
 456                 goto err_dec_users;
 457         }
 458
 459         timer_setup(&sony_laptop_input.release_key_timer,
 460                     do_sony_laptop_release_key, 0);
 461
 462         /* input keys */
 463         key_dev = input_allocate_device();
 464         if (!key_dev) {
 465                 error = -ENOMEM;
 466                 goto err_free_kfifo;
 467         }
 468
 469         key_dev->name = "Sony Vaio Keys";
 470         key_dev->id.bustype = BUS_ISA;
 471         key_dev->id.vendor = PCI_VENDOR_ID_SONY;
 472         key_dev->dev.parent = &acpi_device->dev;
 473
 474         /* Initialize the Input Drivers: special keys */
 475         input_set_capability(key_dev, EV_MSC, MSC_SCAN);
 476
 477         __set_bit(EV_KEY, key_dev->evbit);
 478         key_dev->keycodesize = sizeof(sony_laptop_input_keycode_map[0]);
 479         key_dev->keycodemax = ARRAY_SIZE(sony_laptop_input_keycode_map);
 480         key_dev->keycode = &sony_laptop_input_keycode_map;
 481         for (i = 0; i < ARRAY_SIZE(sony_laptop_input_keycode_map); i++)
 482                 __set_bit(sony_laptop_input_keycode_map[i], key_dev->keybit);
 483         __clear_bit(KEY_RESERVED, key_dev->keybit);
 484
 485         error = input_register_device(key_dev);
 486         if (error)
 487                 goto err_free_keydev;
 488
 489         sony_laptop_input.key_dev = key_dev;
 490
 491         /* jogdial */
 492         jog_dev = input_allocate_device();
 493         if (!jog_dev) {
 494                 error = -ENOMEM;
 495                 goto err_unregister_keydev;
 496         }
 497
 498         jog_dev->name = "Sony Vaio Jogdial";
 499         jog_dev->id.bustype = BUS_ISA;
 500         jog_dev->id.vendor = PCI_VENDOR_ID_SONY;
 501         jog_dev->dev.parent = &acpi_device->dev;
 502
 503         input_set_capability(jog_dev, EV_KEY, BTN_MIDDLE);
 504         input_set_capability(jog_dev, EV_REL, REL_WHEEL);
 505
 506         error = input_register_device(jog_dev);
 507         if (error)
 508                 goto err_free_jogdev;
 509
 510         sony_laptop_input.jog_dev = jog_dev;
 511
 512         return 0;
 513
 514 err_free_jogdev:
 515         input_free_device(jog_dev);
 516
 517 err_unregister_keydev:
 518         input_unregister_device(key_dev);
 519         /* to avoid kref underflow below at input_free_device */
 520         key_dev = NULL;
 521
 522 err_free_keydev:
 523         input_free_device(key_dev);
 524
 525 err_free_kfifo:
 526         kfifo_free(&sony_laptop_input.fifo);
 527
 528 err_dec_users:
 529         atomic_dec(&sony_laptop_input.users);
 530         return error;
 531 }
 532
 533 static void sony_laptop_remove_input(void)
 534 {
 535         struct sony_laptop_keypress kp = { NULL };
 536
 537         /* Cleanup only after the last user has gone */
 538         if (!atomic_dec_and_test(&sony_laptop_input.users))
 539                 return;
 540
 541         del_timer_sync(&sony_laptop_input.release_key_timer);
 542
 543         /*
 544          * Generate key-up events for remaining keys. Note that we don't
 545          * need locking since nobody is adding new events to the kfifo.
 546          */
 547         while (kfifo_out(&sony_laptop_input.fifo,
 548                          (unsigned char *)&kp, sizeof(kp)) == sizeof(kp)) {
 549                 input_report_key(kp.dev, kp.key, 0);
 550                 input_sync(kp.dev);
 551         }
 552
 553         /* destroy input devs */
 554         input_unregister_device(sony_laptop_input.key_dev);
 555         sony_laptop_input.key_dev = NULL;
 556
 557         if (sony_laptop_input.jog_dev) {
 558                 input_unregister_device(sony_laptop_input.jog_dev);
 559                 sony_laptop_input.jog_dev = NULL;
 560         }
 561
 562         kfifo_free(&sony_laptop_input.fifo);
 563 }
 564
 565 /*********** Platform Device ***********/
 566
 567 static atomic_t sony_pf_users = ATOMIC_INIT(0);
 568 static struct platform_driver sony_pf_driver = {
 569         .driver = {
 570                    .name = "sony-laptop",
 571                    }
 572 };
 573 static struct platform_device *sony_pf_device;
 574
 575 static int sony_pf_add(void)
 576 {
 577         int ret = 0;
 578
 579         /* don't run again if already initialized */
 580         if (atomic_add_return(1, &sony_pf_users) > 1)
 581                 return 0;
 582
 583         ret = platform_driver_register(&sony_pf_driver);
 584         if (ret)
 585                 goto out;
 586
 587         sony_pf_device = platform_device_alloc("sony-laptop", -1);
 588         if (!sony_pf_device) {
 589                 ret = -ENOMEM;
 590                 goto out_platform_registered;
 591         }
 592
 593         ret = platform_device_add(sony_pf_device);
 594         if (ret)
 595                 goto out_platform_alloced;
 596
 597         return 0;
 598
 599       out_platform_alloced:
 600         platform_device_put(sony_pf_device);
 601         sony_pf_device = NULL;
 602       out_platform_registered:
 603         platform_driver_unregister(&sony_pf_driver);
 604       out:
 605         atomic_dec(&sony_pf_users);
 606         return ret;
 607 }
 608
 609 static void sony_pf_remove(void)
 610 {
 611         /* deregister only after the last user has gone */
 612         if (!atomic_dec_and_test(&sony_pf_users))
 613                 return;
 614
 615         platform_device_unregister(sony_pf_device);
 616         platform_driver_unregister(&sony_pf_driver);
 617 }
 618
 619 /*********** SNC (SNY5001) Device ***********/
 620
 621 /* the device uses 1-based values, while the backlight subsystem uses
 622    0-based values */
 623 #define SONY_MAX_BRIGHTNESS     8
 624
 625 #define SNC_VALIDATE_IN         0
 626 #define SNC_VALIDATE_OUT        1
 627
 628 static ssize_t sony_nc_sysfs_show(struct device *, struct device_attribute *,
 629                               char *);
 630 static ssize_t sony_nc_sysfs_store(struct device *, struct device_attribute *,
 631                                const char *, size_t);
 632 static int boolean_validate(const int, const int);
 633 static int brightness_default_validate(const int, const int);
 634
 635 struct sony_nc_value {
 636         char *name;             /* name of the entry */
 637         char **acpiget;         /* names of the ACPI get function */
 638         char **acpiset;         /* names of the ACPI set function */
 639         int (*validate)(const int, const int);  /* input/output validation */
 640         int value;              /* current setting */
 641         int valid;              /* Has ever been set */
 642         int debug;              /* active only in debug mode ? */
 643         struct device_attribute devattr;        /* sysfs attribute */
 644 };
 645
 646 #define SNC_HANDLE_NAMES(_name, _values...) \
 647         static char *snc_##_name[] = { _values, NULL }
 648
 649 #define SNC_HANDLE(_name, _getters, _setters, _validate, _debug) \
 650         { \
 651                 .name           = __stringify(_name), \
 652                 .acpiget        = _getters, \
 653                 .acpiset        = _setters, \
 654                 .validate       = _validate, \
 655                 .debug          = _debug, \
 656                 .devattr        = __ATTR(_name, 0, sony_nc_sysfs_show, sony_nc_sysfs_store), \
 657         }
 658
 659 #define SNC_HANDLE_NULL { .name = NULL }
 660
 661 SNC_HANDLE_NAMES(fnkey_get, "GHKE");
 662
 663 SNC_HANDLE_NAMES(brightness_def_get, "GPBR");
 664 SNC_HANDLE_NAMES(brightness_def_set, "SPBR");
 665
 666 SNC_HANDLE_NAMES(cdpower_get, "GCDP");
 667 SNC_HANDLE_NAMES(cdpower_set, "SCDP", "CDPW");
 668
 669 SNC_HANDLE_NAMES(audiopower_get, "GAZP");
 670 SNC_HANDLE_NAMES(audiopower_set, "AZPW");
 671
 672 SNC_HANDLE_NAMES(lanpower_get, "GLNP");
 673 SNC_HANDLE_NAMES(lanpower_set, "LNPW");
 674
 675 SNC_HANDLE_NAMES(lidstate_get, "GLID");
 676
 677 SNC_HANDLE_NAMES(indicatorlamp_get, "GILS");
 678 SNC_HANDLE_NAMES(indicatorlamp_set, "SILS");
 679
 680 SNC_HANDLE_NAMES(gainbass_get, "GMGB");
 681 SNC_HANDLE_NAMES(gainbass_set, "CMGB");
 682
 683 SNC_HANDLE_NAMES(PID_get, "GPID");
 684
 685 SNC_HANDLE_NAMES(CTR_get, "GCTR");
 686 SNC_HANDLE_NAMES(CTR_set, "SCTR");
 687
 688 SNC_HANDLE_NAMES(PCR_get, "GPCR");
 689 SNC_HANDLE_NAMES(PCR_set, "SPCR");
 690
 691 SNC_HANDLE_NAMES(CMI_get, "GCMI");
 692 SNC_HANDLE_NAMES(CMI_set, "SCMI");
 693
 694 static struct sony_nc_value sony_nc_values[] = {
 695         SNC_HANDLE(brightness_default, snc_brightness_def_get,
 696                         snc_brightness_def_set, brightness_default_validate, 0),
 697         SNC_HANDLE(fnkey, snc_fnkey_get, NULL, NULL, 0),
 698         SNC_HANDLE(cdpower, snc_cdpower_get, snc_cdpower_set, boolean_validate, 0),
 699         SNC_HANDLE(audiopower, snc_audiopower_get, snc_audiopower_set,
 700                         boolean_validate, 0),
 701         SNC_HANDLE(lanpower, snc_lanpower_get, snc_lanpower_set,
 702                         boolean_validate, 1),
 703         SNC_HANDLE(lidstate, snc_lidstate_get, NULL,
 704                         boolean_validate, 0),
 705         SNC_HANDLE(indicatorlamp, snc_indicatorlamp_get, snc_indicatorlamp_set,
 706                         boolean_validate, 0),
 707         SNC_HANDLE(gainbass, snc_gainbass_get, snc_gainbass_set,
 708                         boolean_validate, 0),
 709         /* unknown methods */
 710         SNC_HANDLE(PID, snc_PID_get, NULL, NULL, 1),
 711         SNC_HANDLE(CTR, snc_CTR_get, snc_CTR_set, NULL, 1),
 712         SNC_HANDLE(PCR, snc_PCR_get, snc_PCR_set, NULL, 1),
 713         SNC_HANDLE(CMI, snc_CMI_get, snc_CMI_set, NULL, 1),
 714         SNC_HANDLE_NULL
 715 };
 716
 717 static acpi_handle sony_nc_acpi_handle;
 718 static struct acpi_device *sony_nc_acpi_device = NULL;
 719
 720 /*
 721  * acpi_evaluate_object wrappers
 722  * all useful calls into SNC methods take one or zero parameters and return
 723  * integers or arrays.
 724  */
 725 static union acpi_object *__call_snc_method(acpi_handle handle, char *method,
 726                 u64 *value)
 727 {
 728         union acpi_object *result = NULL;
 729         struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
 730         acpi_status status;
 731
 732         if (value) {
 733                 struct acpi_object_list params;
 734                 union acpi_object in;
 735                 in.type = ACPI_TYPE_INTEGER;
 736                 in.integer.value = *value;
 737                 params.count = 1;
 738                 params.pointer = &in;
 739                 status = acpi_evaluate_object(handle, method, &params, &output);
 740                 dprintk("__call_snc_method: [%s:0x%.8x%.8x]\n", method,
 741                                 (unsigned int)(*value >> 32),
 742                                 (unsigned int)*value & 0xffffffff);
 743         } else {
 744                 status = acpi_evaluate_object(handle, method, NULL, &output);
 745                 dprintk("__call_snc_method: [%s]\n", method);
 746         }
 747
 748         if (ACPI_FAILURE(status)) {
 749                 pr_err("Failed to evaluate [%s]\n", method);
 750                 return NULL;
 751         }
 752
 753         result = (union acpi_object *) output.pointer;
 754         if (!result)
 755                 dprintk("No return object [%s]\n", method);
 756
 757         return result;
 758 }
 759
 760 static int sony_nc_int_call(acpi_handle handle, char *name, int *value,
 761                 int *result)
 762 {
 763         union acpi_object *object = NULL;
 764         if (value) {
 765                 u64 v = *value;
 766                 object = __call_snc_method(handle, name, &v);
 767         } else
 768                 object = __call_snc_method(handle, name, NULL);
 769
 770         if (!object)
 771                 return -EINVAL;
 772
 773         if (object->type != ACPI_TYPE_INTEGER) {
 774                 pr_warn("Invalid acpi_object: expected 0x%x got 0x%x\n",
 775                                 ACPI_TYPE_INTEGER, object->type);
 776                 kfree(object);
 777                 return -EINVAL;
 778         }
 779
 780         if (result)
 781                 *result = object->integer.value;
 782
 783         kfree(object);
 784         return 0;
 785 }
 786
 787 #define MIN(a, b)       (a > b ? b : a)
 788 static int sony_nc_buffer_call(acpi_handle handle, char *name, u64 *value,
 789                 void *buffer, size_t buflen)
 790 {
 791         int ret = 0;
 792         size_t len;
 793         union acpi_object *object = __call_snc_method(handle, name, value);
 794
 795         if (!object)
 796                 return -EINVAL;
 797
 798         if (object->type == ACPI_TYPE_BUFFER) {
 799                 len = MIN(buflen, object->buffer.length);
 800                 memcpy(buffer, object->buffer.pointer, len);
 801
 802         } else if (object->type == ACPI_TYPE_INTEGER) {
 803                 len = MIN(buflen, sizeof(object->integer.value));
 804                 memcpy(buffer, &object->integer.value, len);
 805
 806         } else {
 807                 pr_warn("Invalid acpi_object: expected 0x%x got 0x%x\n",
 808                                 ACPI_TYPE_BUFFER, object->type);
 809                 ret = -EINVAL;
 810         }
 811
 812         kfree(object);
 813         return ret;
 814 }
 815
 816 struct sony_nc_handles {
 817         u16 cap[0x10];
 818         struct device_attribute devattr;
 819 };
 820
 821 static struct sony_nc_handles *handles;
 822
 823 static ssize_t sony_nc_handles_show(struct device *dev,
 824                 struct device_attribute *attr, char *buffer)
 825 {
 826         ssize_t len = 0;
 827         int i;
 828
 829         for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
 830                 len += snprintf(buffer + len, PAGE_SIZE - len, "0x%.4x ",
 831                                 handles->cap[i]);
 832         }
 833         len += snprintf(buffer + len, PAGE_SIZE - len, "\n");
 834
 835         return len;
 836 }
 837
 838 static int sony_nc_handles_setup(struct platform_device *pd)
 839 {
 840         int i, r, result, arg;
 841
 842         handles = kzalloc(sizeof(*handles), GFP_KERNEL);
 843         if (!handles)
 844                 return -ENOMEM;
 845
 846         for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
 847                 arg = i + 0x20;
 848                 r = sony_nc_int_call(sony_nc_acpi_handle, "SN00", &arg,
 849                                         &result);
 850                 if (!r) {
 851                         dprintk("caching handle 0x%.4x (offset: 0x%.2x)\n",
 852                                         result, i);
 853                         handles->cap[i] = result;
 854                 }
 855         }
 856
 857         if (debug) {
 858                 sysfs_attr_init(&handles->devattr.attr);
 859                 handles->devattr.attr.name = "handles";
 860                 handles->devattr.attr.mode = S_IRUGO;
 861                 handles->devattr.show = sony_nc_handles_show;
 862
 863                 /* allow reading capabilities via sysfs */
 864                 if (device_create_file(&pd->dev, &handles->devattr)) {
 865                         kfree(handles);
 866                         handles = NULL;
 867                         return -1;
 868                 }
 869         }
 870
 871         return 0;
 872 }
 873
 874 static int sony_nc_handles_cleanup(struct platform_device *pd)
 875 {
 876         if (handles) {
 877                 if (debug)
 878                         device_remove_file(&pd->dev, &handles->devattr);
 879                 kfree(handles);
 880                 handles = NULL;
 881         }
 882         return 0;
 883 }
 884
 885 static int sony_find_snc_handle(int handle)
 886 {
 887         int i;
 888
 889         /* not initialized yet, return early */
 890         if (!handles || !handle)
 891                 return -EINVAL;
 892
 893         for (i = 0; i < 0x10; i++) {
 894                 if (handles->cap[i] == handle) {
 895                         dprintk("found handle 0x%.4x (offset: 0x%.2x)\n",
 896                                         handle, i);
 897                         return i;
 898                 }
 899         }
 900         dprintk("handle 0x%.4x not found\n", handle);
 901         return -EINVAL;
 902 }
 903
 904 static int sony_call_snc_handle(int handle, int argument, int *result)
 905 {
 906         int arg, ret = 0;
 907         int offset = sony_find_snc_handle(handle);
 908
 909         if (offset < 0)
 910                 return offset;
 911
 912         arg = offset | argument;
 913         ret = sony_nc_int_call(sony_nc_acpi_handle, "SN07", &arg, result);
 914         dprintk("called SN07 with 0x%.4x (result: 0x%.4x)\n", arg, *result);
 915         return ret;
 916 }
 917
 918 /*
 919  * sony_nc_values input/output validate functions
 920  */
 921
 922 /* brightness_default_validate:
 923  *
 924  * manipulate input output values to keep consistency with the
 925  * backlight framework for which brightness values are 0-based.
 926  */
 927 static int brightness_default_validate(const int direction, const int value)
 928 {
 929         switch (direction) {
 930                 case SNC_VALIDATE_OUT:
 931                         return value - 1;
 932                 case SNC_VALIDATE_IN:
 933                         if (value >= 0 && value < SONY_MAX_BRIGHTNESS)
 934                                 return value + 1;
 935         }
 936         return -EINVAL;
 937 }
 938
 939 /* boolean_validate:
 940  *
 941  * on input validate boolean values 0/1, on output just pass the
 942  * received value.
 943  */
 944 static int boolean_validate(const int direction, const int value)
 945 {
 946         if (direction == SNC_VALIDATE_IN) {
 947                 if (value != 0 && value != 1)
 948                         return -EINVAL;
 949         }
 950         return value;
 951 }
 952
 953 /*
 954  * Sysfs show/store common to all sony_nc_values
 955  */
 956 static ssize_t sony_nc_sysfs_show(struct device *dev, struct device_attribute *attr,
 957                               char *buffer)
 958 {
 959         int value, ret = 0;
 960         struct sony_nc_value *item =
 961             container_of(attr, struct sony_nc_value, devattr);
 962
 963         if (!*item->acpiget)
 964                 return -EIO;
 965
 966         ret = sony_nc_int_call(sony_nc_acpi_handle, *item->acpiget, NULL,
 967                                 &value);
 968         if (ret < 0)
 969                 return -EIO;
 970
 971         if (item->validate)
 972                 value = item->validate(SNC_VALIDATE_OUT, value);
 973
 974         return snprintf(buffer, PAGE_SIZE, "%d\n", value);
 975 }
 976
 977 static ssize_t sony_nc_sysfs_store(struct device *dev,
 978                                struct device_attribute *attr,
 979                                const char *buffer, size_t count)
 980 {
 981         int value;
 982         int ret = 0;
 983         struct sony_nc_value *item =
 984             container_of(attr, struct sony_nc_value, devattr);
 985
 986         if (!item->acpiset)
 987                 return -EIO;
 988
 989         if (count > 31)
 990                 return -EINVAL;
 991
 992         if (kstrtoint(buffer, 10, &value))
 993                 return -EINVAL;
 994
 995         if (item->validate)
 996                 value = item->validate(SNC_VALIDATE_IN, value);
 997
 998         if (value < 0)
 999                 return value;
1000
1001         ret = sony_nc_int_call(sony_nc_acpi_handle, *item->acpiset,
1002                                &value, NULL);
1003         if (ret < 0)
1004                 return -EIO;
1005
1006         item->value = value;
1007         item->valid = 1;
1008         return count;
1009 }
1010
1011
1012 /*
1013  * Backlight device
1014  */
1015 struct sony_backlight_props {
1016         struct backlight_device *dev;
1017         int                     handle;
1018         int                     cmd_base;
1019         u8                      offset;
1020         u8                      maxlvl;
1021 };
1022 static struct sony_backlight_props sony_bl_props;
1023
1024 static int sony_backlight_update_status(struct backlight_device *bd)
1025 {
1026         int arg = bd->props.brightness + 1;
1027         return sony_nc_int_call(sony_nc_acpi_handle, "SBRT", &arg, NULL);
1028 }
1029
1030 static int sony_backlight_get_brightness(struct backlight_device *bd)
1031 {
1032         int value;
1033
1034         if (sony_nc_int_call(sony_nc_acpi_handle, "GBRT", NULL, &value))
1035                 return 0;
1036         /* brightness levels are 1-based, while backlight ones are 0-based */
1037         return value - 1;
1038 }
1039
1040 static int sony_nc_get_brightness_ng(struct backlight_device *bd)
1041 {
1042         int result;
1043         struct sony_backlight_props *sdev =
1044                 (struct sony_backlight_props *)bl_get_data(bd);
1045
1046         sony_call_snc_handle(sdev->handle, sdev->cmd_base + 0x100, &result);
1047
1048         return (result & 0xff) - sdev->offset;
1049 }
1050
1051 static int sony_nc_update_status_ng(struct backlight_device *bd)
1052 {
1053         int value, result;
1054         struct sony_backlight_props *sdev =
1055                 (struct sony_backlight_props *)bl_get_data(bd);
1056
1057         value = bd->props.brightness + sdev->offset;
1058         if (sony_call_snc_handle(sdev->handle, sdev->cmd_base | (value << 0x10),
1059                                 &result))
1060                 return -EIO;
1061
1062         return value;
1063 }
1064
1065 static const struct backlight_ops sony_backlight_ops = {
1066         .options = BL_CORE_SUSPENDRESUME,
1067         .update_status = sony_backlight_update_status,
1068         .get_brightness = sony_backlight_get_brightness,
1069 };
1070 static const struct backlight_ops sony_backlight_ng_ops = {
1071         .options = BL_CORE_SUSPENDRESUME,
1072         .update_status = sony_nc_update_status_ng,
1073         .get_brightness = sony_nc_get_brightness_ng,
1074 };
1075
1076 /*
1077  * New SNC-only Vaios event mapping to driver known keys
1078  */
1079 struct sony_nc_event {
1080         u8      data;
1081         u8      event;
1082 };
1083
1084 static struct sony_nc_event sony_100_events[] = {
1085         { 0x90, SONYPI_EVENT_PKEY_P1 },
1086         { 0x10, SONYPI_EVENT_ANYBUTTON_RELEASED },
1087         { 0x91, SONYPI_EVENT_PKEY_P2 },
1088         { 0x11, SONYPI_EVENT_ANYBUTTON_RELEASED },
1089         { 0x81, SONYPI_EVENT_FNKEY_F1 },
1090         { 0x01, SONYPI_EVENT_FNKEY_RELEASED },
1091         { 0x82, SONYPI_EVENT_FNKEY_F2 },
1092         { 0x02, SONYPI_EVENT_FNKEY_RELEASED },
1093         { 0x83, SONYPI_EVENT_FNKEY_F3 },
1094         { 0x03, SONYPI_EVENT_FNKEY_RELEASED },
1095         { 0x84, SONYPI_EVENT_FNKEY_F4 },
1096         { 0x04, SONYPI_EVENT_FNKEY_RELEASED },
1097         { 0x85, SONYPI_EVENT_FNKEY_F5 },
1098         { 0x05, SONYPI_EVENT_FNKEY_RELEASED },
1099         { 0x86, SONYPI_EVENT_FNKEY_F6 },
1100         { 0x06, SONYPI_EVENT_FNKEY_RELEASED },
1101         { 0x87, SONYPI_EVENT_FNKEY_F7 },
1102         { 0x07, SONYPI_EVENT_FNKEY_RELEASED },
1103         { 0x88, SONYPI_EVENT_FNKEY_F8 },
1104         { 0x08, SONYPI_EVENT_FNKEY_RELEASED },
1105         { 0x89, SONYPI_EVENT_FNKEY_F9 },
1106         { 0x09, SONYPI_EVENT_FNKEY_RELEASED },
1107         { 0x8A, SONYPI_EVENT_FNKEY_F10 },
1108         { 0x0A, SONYPI_EVENT_FNKEY_RELEASED },
1109         { 0x8B, SONYPI_EVENT_FNKEY_F11 },
1110         { 0x0B, SONYPI_EVENT_FNKEY_RELEASED },
1111         { 0x8C, SONYPI_EVENT_FNKEY_F12 },
1112         { 0x0C, SONYPI_EVENT_FNKEY_RELEASED },
1113         { 0x9d, SONYPI_EVENT_ZOOM_PRESSED },
1114         { 0x1d, SONYPI_EVENT_ANYBUTTON_RELEASED },
1115         { 0x9f, SONYPI_EVENT_CD_EJECT_PRESSED },
1116         { 0x1f, SONYPI_EVENT_ANYBUTTON_RELEASED },
1117         { 0xa1, SONYPI_EVENT_MEDIA_PRESSED },
1118         { 0x21, SONYPI_EVENT_ANYBUTTON_RELEASED },
1119         { 0xa4, SONYPI_EVENT_CD_EJECT_PRESSED },
1120         { 0x24, SONYPI_EVENT_ANYBUTTON_RELEASED },
1121         { 0xa5, SONYPI_EVENT_VENDOR_PRESSED },
1122         { 0x25, SONYPI_EVENT_ANYBUTTON_RELEASED },
1123         { 0xa6, SONYPI_EVENT_HELP_PRESSED },
1124         { 0x26, SONYPI_EVENT_ANYBUTTON_RELEASED },
1125         { 0xa8, SONYPI_EVENT_FNKEY_1 },
1126         { 0x28, SONYPI_EVENT_ANYBUTTON_RELEASED },
1127         { 0, 0 },
1128 };
1129
1130 static struct sony_nc_event sony_127_events[] = {
1131         { 0x81, SONYPI_EVENT_MODEKEY_PRESSED },
1132         { 0x01, SONYPI_EVENT_ANYBUTTON_RELEASED },
1133         { 0x82, SONYPI_EVENT_PKEY_P1 },
1134         { 0x02, SONYPI_EVENT_ANYBUTTON_RELEASED },
1135         { 0x83, SONYPI_EVENT_PKEY_P2 },
1136         { 0x03, SONYPI_EVENT_ANYBUTTON_RELEASED },
1137         { 0x84, SONYPI_EVENT_PKEY_P3 },
1138         { 0x04, SONYPI_EVENT_ANYBUTTON_RELEASED },
1139         { 0x85, SONYPI_EVENT_PKEY_P4 },
1140         { 0x05, SONYPI_EVENT_ANYBUTTON_RELEASED },
1141         { 0x86, SONYPI_EVENT_PKEY_P5 },
1142         { 0x06, SONYPI_EVENT_ANYBUTTON_RELEASED },
1143         { 0x87, SONYPI_EVENT_SETTINGKEY_PRESSED },
1144         { 0x07, SONYPI_EVENT_ANYBUTTON_RELEASED },
1145         { 0, 0 },
1146 };
1147
1148 static int sony_nc_hotkeys_decode(u32 event, unsigned int handle)
1149 {
1150         int ret = -EINVAL;
1151         unsigned int result = 0;
1152         struct sony_nc_event *key_event;
1153
1154         if (sony_call_snc_handle(handle, 0x200, &result)) {
1155                 dprintk("Unable to decode event 0x%.2x 0x%.2x\n", handle,
1156                                 event);
1157                 return -EINVAL;
1158         }
1159
1160         result &= 0xFF;
1161
1162         if (handle == 0x0100)
1163                 key_event = sony_100_events;
1164         else
1165                 key_event = sony_127_events;
1166
1167         for (; key_event->data; key_event++) {
1168                 if (key_event->data == result) {
1169                         ret = key_event->event;
1170                         break;
1171                 }
1172         }
1173
1174         if (!key_event->data)
1175                 pr_info("Unknown hotkey 0x%.2x/0x%.2x (handle 0x%.2x)\n",
1176                                 event, result, handle);
1177
1178         return ret;
1179 }
1180
1181 /*
1182  * ACPI callbacks
1183  */
1184 enum event_types {
1185         HOTKEY = 1,
1186         KILLSWITCH,
1187         GFX_SWITCH
1188 };
1189 static void sony_nc_notify(struct acpi_device *device, u32 event)
1190 {
1191         u32 real_ev = event;
1192         u8 ev_type = 0;
1193         int ret;
1194
1195         dprintk("sony_nc_notify, event: 0x%.2x\n", event);
1196
1197         if (event >= 0x90) {
1198                 unsigned int result = 0;
1199                 unsigned int arg = 0;
1200                 unsigned int handle = 0;
1201                 unsigned int offset = event - 0x90;
1202
1203                 if (offset >= ARRAY_SIZE(handles->cap)) {
1204                         pr_err("Event 0x%x outside of capabilities list\n",
1205                                         event);
1206                         return;
1207                 }
1208                 handle = handles->cap[offset];
1209
1210                 /* list of handles known for generating events */
1211                 switch (handle) {
1212                 /* hotkey event */
1213                 case 0x0100:
1214                 case 0x0127:
1215                         ev_type = HOTKEY;
1216                         ret = sony_nc_hotkeys_decode(event, handle);
1217
1218                         if (ret > 0) {
1219                                 sony_laptop_report_input_event(ret);
1220                                 real_ev = ret;
1221                         }
1222
1223                         break;
1224
1225                 /* wlan switch */
1226                 case 0x0124:
1227                 case 0x0135:
1228                         /* events on this handle are reported when the
1229                          * switch changes position or for battery
1230                          * events. We'll notify both of them but only
1231                          * update the rfkill device status when the
1232                          * switch is moved.
1233                          */
1234                         ev_type = KILLSWITCH;
1235                         sony_call_snc_handle(handle, 0x0100, &result);
1236                         real_ev = result & 0x03;
1237
1238                         /* hw switch event */
1239                         if (real_ev == 1)
1240                                 sony_nc_rfkill_update();
1241
1242                         break;
1243
1244                 case 0x0128:
1245                 case 0x0146:
1246                         /* Hybrid GFX switching */
1247                         sony_call_snc_handle(handle, 0x0000, &result);
1248                         dprintk("GFX switch event received (reason: %s)\n",
1249                                         (result == 0x1) ? "switch change" :
1250                                         (result == 0x2) ? "output switch" :
1251                                         (result == 0x3) ? "output switch" :
1252                                         "");
1253
1254                         ev_type = GFX_SWITCH;
1255                         real_ev = __sony_nc_gfx_switch_status_get();
1256                         break;
1257
1258                 case 0x015B:
1259                         /* Hybrid GFX switching SVS151290S */
1260                         ev_type = GFX_SWITCH;
1261                         real_ev = __sony_nc_gfx_switch_status_get();
1262                         break;
1263                 default:
1264                         dprintk("Unknown event 0x%x for handle 0x%x\n",
1265                                         event, handle);
1266                         break;
1267                 }
1268
1269                 /* clear the event (and the event reason when present) */
1270                 arg = 1 << offset;
1271                 sony_nc_int_call(sony_nc_acpi_handle, "SN05", &arg, &result);
1272
1273         } else {
1274                 /* old style event */
1275                 ev_type = HOTKEY;
1276                 sony_laptop_report_input_event(real_ev);
1277         }
1278         acpi_bus_generate_netlink_event(sony_nc_acpi_device->pnp.device_class,
1279                         dev_name(&sony_nc_acpi_device->dev), ev_type, real_ev);
1280 }
1281
1282 static acpi_status sony_walk_callback(acpi_handle handle, u32 level,
1283                                       void *context, void **return_value)
1284 {
1285         struct acpi_device_info *info;
1286
1287         if (ACPI_SUCCESS(acpi_get_object_info(handle, &info))) {
1288                 pr_warn("method: name: %4.4s, args %X\n",
1289                         (char *)&info->name, info->param_count);
1290
1291                 kfree(info);
1292         }
1293
1294         return AE_OK;
1295 }
1296
1297 /*
1298  * ACPI device
1299  */
1300 static void sony_nc_function_setup(struct acpi_device *device,
1301                 struct platform_device *pf_device)
1302 {
1303         unsigned int i, result, bitmask, arg;
1304
1305         if (!handles)
1306                 return;
1307
1308         /* setup found handles here */
1309         for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
1310                 unsigned int handle = handles->cap[i];
1311
1312                 if (!handle)
1313                         continue;
1314
1315                 dprintk("setting up handle 0x%.4x\n", handle);
1316
1317                 switch (handle) {
1318                 case 0x0100:
1319                 case 0x0101:
1320                 case 0x0127:
1321                         /* setup hotkeys */
1322                         sony_call_snc_handle(handle, 0, &result);
1323                         break;
1324                 case 0x0102:
1325                         /* setup hotkeys */
1326                         sony_call_snc_handle(handle, 0x100, &result);
1327                         break;
1328                 case 0x0105:
1329                 case 0x0148:
1330                         /* touchpad enable/disable */
1331                         result = sony_nc_touchpad_setup(pf_device, handle);
1332                         if (result)
1333                                 pr_err("couldn't set up touchpad control function (%d)\n",
1334                                                 result);
1335                         break;
1336                 case 0x0115:
1337                 case 0x0136:
1338                 case 0x013f:
1339                         result = sony_nc_battery_care_setup(pf_device, handle);
1340                         if (result)
1341                                 pr_err("couldn't set up battery care function (%d)\n",
1342                                                 result);
1343                         break;
1344                 case 0x0119:
1345                 case 0x015D:
1346                         result = sony_nc_lid_resume_setup(pf_device, handle);
1347                         if (result)
1348                                 pr_err("couldn't set up lid resume function (%d)\n",
1349                                                 result);
1350                         break;
1351                 case 0x0122:
1352                         result = sony_nc_thermal_setup(pf_device);
1353                         if (result)
1354                                 pr_err("couldn't set up thermal profile function (%d)\n",
1355                                                 result);
1356                         break;
1357                 case 0x0128:
1358                 case 0x0146:
1359                 case 0x015B:
1360                         result = sony_nc_gfx_switch_setup(pf_device, handle);
1361                         if (result)
1362                                 pr_err("couldn't set up GFX Switch status (%d)\n",
1363                                                 result);
1364                         break;
1365                 case 0x0131:
1366                         result = sony_nc_highspeed_charging_setup(pf_device);
1367                         if (result)
1368                                 pr_err("couldn't set up high speed charging function (%d)\n",
1369                                        result);
1370                         break;
1371                 case 0x0124:
1372                 case 0x0135:
1373                         result = sony_nc_rfkill_setup(device, handle);
1374                         if (result)
1375                                 pr_err("couldn't set up rfkill support (%d)\n",
1376                                                 result);
1377                         break;
1378                 case 0x0137:
1379                 case 0x0143:
1380                 case 0x014b:
1381                 case 0x014c:
1382                 case 0x0153:
1383                 case 0x0163:
1384                         result = sony_nc_kbd_backlight_setup(pf_device, handle);
1385                         if (result)
1386                                 pr_err("couldn't set up keyboard backlight function (%d)\n",
1387                                                 result);
1388                         break;
1389                 case 0x0121:
1390                         result = sony_nc_lowbatt_setup(pf_device);
1391                         if (result)
1392                                 pr_err("couldn't set up low battery function (%d)\n",
1393                                        result);
1394                         break;
1395                 case 0x0149:
1396                         result = sony_nc_fanspeed_setup(pf_device);
1397                         if (result)
1398                                 pr_err("couldn't set up fan speed function (%d)\n",
1399                                        result);
1400                         break;
1401                 case 0x0155:
1402                         result = sony_nc_usb_charge_setup(pf_device);
1403                         if (result)
1404                                 pr_err("couldn't set up USB charge support (%d)\n",
1405                                                 result);
1406                         break;
1407                 case 0x011D:
1408                         result = sony_nc_panelid_setup(pf_device);
1409                         if (result)
1410                                 pr_err("couldn't set up panel ID function (%d)\n",
1411                                        result);
1412                         break;
1413                 case 0x0168:
1414                         result = sony_nc_smart_conn_setup(pf_device);
1415                         if (result)
1416                                 pr_err("couldn't set up smart connect support (%d)\n",
1417                                                 result);
1418                         break;
1419                 default:
1420                         continue;
1421                 }
1422         }
1423
1424         /* Enable all events */
1425         arg = 0x10;
1426         if (!sony_nc_int_call(sony_nc_acpi_handle, "SN00", &arg, &bitmask))
1427                 sony_nc_int_call(sony_nc_acpi_handle, "SN02", &bitmask,
1428                                 &result);
1429 }
1430
1431 static void sony_nc_function_cleanup(struct platform_device *pd)
1432 {
1433         unsigned int i, result, bitmask, handle;
1434
1435         if (!handles)
1436                 return;
1437
1438         /* get enabled events and disable them */
1439         sony_nc_int_call(sony_nc_acpi_handle, "SN01", NULL, &bitmask);
1440         sony_nc_int_call(sony_nc_acpi_handle, "SN03", &bitmask, &result);
1441
1442         /* cleanup handles here */
1443         for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
1444
1445                 handle = handles->cap[i];
1446
1447                 if (!handle)
1448                         continue;
1449
1450                 switch (handle) {
1451                 case 0x0105:
1452                 case 0x0148:
1453                         sony_nc_touchpad_cleanup(pd);
1454                         break;
1455                 case 0x0115:
1456                 case 0x0136:
1457                 case 0x013f:
1458                         sony_nc_battery_care_cleanup(pd);
1459                         break;
1460                 case 0x0119:
1461                 case 0x015D:
1462                         sony_nc_lid_resume_cleanup(pd);
1463                         break;
1464                 case 0x0122:
1465                         sony_nc_thermal_cleanup(pd);
1466                         break;
1467                 case 0x0128:
1468                 case 0x0146:
1469                 case 0x015B:
1470                         sony_nc_gfx_switch_cleanup(pd);
1471                         break;
1472                 case 0x0131:
1473                         sony_nc_highspeed_charging_cleanup(pd);
1474                         break;
1475                 case 0x0124:
1476                 case 0x0135:
1477                         sony_nc_rfkill_cleanup();
1478                         break;
1479                 case 0x0137:
1480                 case 0x0143:
1481                 case 0x014b:
1482                 case 0x014c:
1483                 case 0x0153:
1484                 case 0x0163:
1485                         sony_nc_kbd_backlight_cleanup(pd, handle);
1486                         break;
1487                 case 0x0121:
1488                         sony_nc_lowbatt_cleanup(pd);
1489                         break;
1490                 case 0x0149:
1491                         sony_nc_fanspeed_cleanup(pd);
1492                         break;
1493                 case 0x0155:
1494                         sony_nc_usb_charge_cleanup(pd);
1495                         break;
1496                 case 0x011D:
1497                         sony_nc_panelid_cleanup(pd);
1498                         break;
1499                 case 0x0168:
1500                         sony_nc_smart_conn_cleanup(pd);
1501                         break;
1502                 default:
1503                         continue;
1504                 }
1505         }
1506
1507         /* finally cleanup the handles list */
1508         sony_nc_handles_cleanup(pd);
1509 }
1510
1511 #ifdef CONFIG_PM_SLEEP
1512 static void sony_nc_function_resume(void)
1513 {
1514         unsigned int i, result, bitmask, arg;
1515
1516         dprintk("Resuming SNC device\n");
1517
1518         for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
1519                 unsigned int handle = handles->cap[i];
1520
1521                 if (!handle)
1522                         continue;
1523
1524                 switch (handle) {
1525                 case 0x0100:
1526                 case 0x0101:
1527                 case 0x0127:
1528                         /* re-enable hotkeys */
1529                         sony_call_snc_handle(handle, 0, &result);
1530                         break;
1531                 case 0x0102:
1532                         /* re-enable hotkeys */
1533                         sony_call_snc_handle(handle, 0x100, &result);
1534                         break;
1535                 case 0x0122:
1536                         sony_nc_thermal_resume();
1537                         break;
1538                 case 0x0124:
1539                 case 0x0135:
1540                         sony_nc_rfkill_update();
1541                         break;
1542                 default:
1543                         continue;
1544                 }
1545         }
1546
1547         /* Enable all events */
1548         arg = 0x10;
1549         if (!sony_nc_int_call(sony_nc_acpi_handle, "SN00", &arg, &bitmask))
1550                 sony_nc_int_call(sony_nc_acpi_handle, "SN02", &bitmask,
1551                                 &result);
1552 }
1553
1554 static int sony_nc_resume(struct device *dev)
1555 {
1556         struct sony_nc_value *item;
1557
1558         for (item = sony_nc_values; item->name; item++) {
1559                 int ret;
1560
1561                 if (!item->valid)
1562                         continue;
1563                 ret = sony_nc_int_call(sony_nc_acpi_handle, *item->acpiset,
1564                                        &item->value, NULL);
1565                 if (ret < 0) {
1566                         pr_err("%s: %d\n", __func__, ret);
1567                         break;
1568                 }
1569         }
1570
1571         if (acpi_has_method(sony_nc_acpi_handle, "ECON")) {
1572                 int arg = 1;
1573                 if (sony_nc_int_call(sony_nc_acpi_handle, "ECON", &arg, NULL))
1574                         dprintk("ECON Method failed\n");
1575         }
1576
1577         if (acpi_has_method(sony_nc_acpi_handle, "SN00"))
1578                 sony_nc_function_resume();
1579
1580         return 0;
1581 }
1582 #endif
1583
1584 static SIMPLE_DEV_PM_OPS(sony_nc_pm, NULL, sony_nc_resume);
1585
1586 static void sony_nc_rfkill_cleanup(void)
1587 {
1588         int i;
1589
1590         for (i = 0; i < N_SONY_RFKILL; i++) {
1591                 if (sony_rfkill_devices[i]) {
1592                         rfkill_unregister(sony_rfkill_devices[i]);
1593                         rfkill_destroy(sony_rfkill_devices[i]);
1594                 }
1595         }
1596 }
1597
1598 static int sony_nc_rfkill_set(void *data, bool blocked)
1599 {
1600         int result;
1601         int argument = sony_rfkill_address[(long) data] + 0x100;
1602
1603         if (!blocked)
1604                 argument |= 0x070000;
1605
1606         return sony_call_snc_handle(sony_rfkill_handle, argument, &result);
1607 }
1608
1609 static const struct rfkill_ops sony_rfkill_ops = {
1610         .set_block = sony_nc_rfkill_set,
1611 };
1612
1613 static int sony_nc_setup_rfkill(struct acpi_device *device,
1614                                 enum sony_nc_rfkill nc_type)
1615 {
1616         int err;
1617         struct rfkill *rfk;
1618         enum rfkill_type type;
1619         const char *name;
1620         int result;
1621         bool hwblock, swblock;
1622
1623         switch (nc_type) {
1624         case SONY_WIFI:
1625                 type = RFKILL_TYPE_WLAN;
1626                 name = "sony-wifi";
1627                 break;
1628         case SONY_BLUETOOTH:
1629                 type = RFKILL_TYPE_BLUETOOTH;
1630                 name = "sony-bluetooth";
1631                 break;
1632         case SONY_WWAN:
1633                 type = RFKILL_TYPE_WWAN;
1634                 name = "sony-wwan";
1635                 break;
1636         case SONY_WIMAX:
1637                 type = RFKILL_TYPE_WIMAX;
1638                 name = "sony-wimax";
1639                 break;
1640         default:
1641                 return -EINVAL;
1642         }
1643
1644         rfk = rfkill_alloc(name, &device->dev, type,
1645                            &sony_rfkill_ops, (void *)nc_type);
1646         if (!rfk)
1647                 return -ENOMEM;
1648
1649         err = sony_call_snc_handle(sony_rfkill_handle, 0x200, &result);
1650         if (err < 0) {
1651                 rfkill_destroy(rfk);
1652                 return err;
1653         }
1654         hwblock = !(result & 0x1);
1655
1656         err = sony_call_snc_handle(sony_rfkill_handle,
1657                                    sony_rfkill_address[nc_type],
1658                                    &result);
1659         if (err < 0) {
1660                 rfkill_destroy(rfk);
1661                 return err;
1662         }
1663         swblock = !(result & 0x2);
1664
1665         rfkill_init_sw_state(rfk, swblock);
1666         rfkill_set_hw_state(rfk, hwblock);
1667
1668         err = rfkill_register(rfk);
1669         if (err) {
1670                 rfkill_destroy(rfk);
1671                 return err;
1672         }
1673         sony_rfkill_devices[nc_type] = rfk;
1674         return err;
1675 }
1676
1677 static void sony_nc_rfkill_update(void)
1678 {
1679         enum sony_nc_rfkill i;
1680         int result;
1681         bool hwblock;
1682
1683         sony_call_snc_handle(sony_rfkill_handle, 0x200, &result);
1684         hwblock = !(result & 0x1);
1685
1686         for (i = 0; i < N_SONY_RFKILL; i++) {
1687                 int argument = sony_rfkill_address[i];
1688
1689                 if (!sony_rfkill_devices[i])
1690                         continue;
1691
1692                 if (hwblock) {
1693                         if (rfkill_set_hw_state(sony_rfkill_devices[i], true)) {
1694                                 /* we already know we're blocked */
1695                         }
1696                         continue;
1697                 }
1698
1699                 sony_call_snc_handle(sony_rfkill_handle, argument, &result);
1700                 rfkill_set_states(sony_rfkill_devices[i],
1701                                   !(result & 0x2), false);
1702         }
1703 }
1704
1705 static int sony_nc_rfkill_setup(struct acpi_device *device,
1706                 unsigned int handle)
1707 {
1708         u64 offset;
1709         int i;
1710         unsigned char buffer[32] = { 0 };
1711
1712         offset = sony_find_snc_handle(handle);
1713         sony_rfkill_handle = handle;
1714
1715         i = sony_nc_buffer_call(sony_nc_acpi_handle, "SN06", &offset, buffer,
1716                         32);
1717         if (i < 0)
1718                 return i;
1719
1720         /* The buffer is filled with magic numbers describing the devices
1721          * available, 0xff terminates the enumeration.
1722          * Known codes:
1723          *      0x00 WLAN
1724          *      0x10 BLUETOOTH
1725          *      0x20 WWAN GPRS-EDGE
1726          *      0x21 WWAN HSDPA
1727          *      0x22 WWAN EV-DO
1728          *      0x23 WWAN GPS
1729          *      0x25 Gobi WWAN no GPS
1730          *      0x26 Gobi WWAN + GPS
1731          *      0x28 Gobi WWAN no GPS
1732          *      0x29 Gobi WWAN + GPS
1733          *      0x30 WIMAX
1734          *      0x50 Gobi WWAN no GPS
1735          *      0x51 Gobi WWAN + GPS
1736          *      0x70 no SIM card slot
1737          *      0x71 SIM card slot
1738          */
1739         for (i = 0; i < ARRAY_SIZE(buffer); i++) {
1740
1741                 if (buffer[i] == 0xff)
1742                         break;
1743
1744                 dprintk("Radio devices, found 0x%.2x\n", buffer[i]);
1745
1746                 if (buffer[i] == 0 && !sony_rfkill_devices[SONY_WIFI])
1747                         sony_nc_setup_rfkill(device, SONY_WIFI);
1748
1749                 if (buffer[i] == 0x10 && !sony_rfkill_devices[SONY_BLUETOOTH])
1750                         sony_nc_setup_rfkill(device, SONY_BLUETOOTH);
1751
1752                 if (((0xf0 & buffer[i]) == 0x20 ||
1753                                         (0xf0 & buffer[i]) == 0x50) &&
1754                                 !sony_rfkill_devices[SONY_WWAN])
1755                         sony_nc_setup_rfkill(device, SONY_WWAN);
1756
1757                 if (buffer[i] == 0x30 && !sony_rfkill_devices[SONY_WIMAX])
1758                         sony_nc_setup_rfkill(device, SONY_WIMAX);
1759         }
1760         return 0;
1761 }
1762
1763 /* Keyboard backlight feature */
1764 struct kbd_backlight {
1765         unsigned int handle;
1766         unsigned int base;
1767         unsigned int mode;
1768         unsigned int timeout;
1769         unsigned int has_timeout;
1770         struct device_attribute mode_attr;
1771         struct device_attribute timeout_attr;
1772 };
1773
1774 static struct kbd_backlight *kbdbl_ctl;
1775
1776 static ssize_t __sony_nc_kbd_backlight_mode_set(u8 value)
1777 {
1778         int result;
1779
1780         if (value > 2)
1781                 return -EINVAL;
1782
1783         if (sony_call_snc_handle(kbdbl_ctl->handle,
1784                                 (value << 0x10) | (kbdbl_ctl->base), &result))
1785                 return -EIO;
1786
1787         /* Try to turn the light on/off immediately */
1788         if (value != 1)
1789                 sony_call_snc_handle(kbdbl_ctl->handle,
1790                                 (value << 0x0f) | (kbdbl_ctl->base + 0x100),
1791                                 &result);
1792
1793         kbdbl_ctl->mode = value;
1794
1795         return 0;
1796 }
1797
1798 static ssize_t sony_nc_kbd_backlight_mode_store(struct device *dev,
1799                 struct device_attribute *attr,
1800                 const char *buffer, size_t count)
1801 {
1802         int ret = 0;
1803         unsigned long value;
1804
1805         if (count > 31)
1806                 return -EINVAL;
1807
1808         if (kstrtoul(buffer, 10, &value))
1809                 return -EINVAL;
1810
1811         ret = __sony_nc_kbd_backlight_mode_set(value);
1812         if (ret < 0)
1813                 return ret;
1814
1815         return count;
1816 }
1817
1818 static ssize_t sony_nc_kbd_backlight_mode_show(struct device *dev,
1819                 struct device_attribute *attr, char *buffer)
1820 {
1821         ssize_t count = 0;
1822         count = snprintf(buffer, PAGE_SIZE, "%d\n", kbdbl_ctl->mode);
1823         return count;
1824 }
1825
1826 static int __sony_nc_kbd_backlight_timeout_set(u8 value)
1827 {
1828         int result;
1829
1830         if (value > 3)
1831                 return -EINVAL;
1832
1833         if (sony_call_snc_handle(kbdbl_ctl->handle, (value << 0x10) |
1834                                 (kbdbl_ctl->base + 0x200), &result))
1835                 return -EIO;
1836
1837         kbdbl_ctl->timeout = value;
1838
1839         return 0;
1840 }
1841
1842 static ssize_t sony_nc_kbd_backlight_timeout_store(struct device *dev,
1843                 struct device_attribute *attr,
1844                 const char *buffer, size_t count)
1845 {
1846         int ret = 0;
1847         unsigned long value;
1848
1849         if (count > 31)
1850                 return -EINVAL;
1851
1852         if (kstrtoul(buffer, 10, &value))
1853                 return -EINVAL;
1854
1855         ret = __sony_nc_kbd_backlight_timeout_set(value);
1856         if (ret < 0)
1857                 return ret;
1858
1859         return count;
1860 }
1861
1862 static ssize_t sony_nc_kbd_backlight_timeout_show(struct device *dev,
1863                 struct device_attribute *attr, char *buffer)
1864 {
1865         ssize_t count = 0;
1866         count = snprintf(buffer, PAGE_SIZE, "%d\n", kbdbl_ctl->timeout);
1867         return count;
1868 }
1869
1870 static int sony_nc_kbd_backlight_setup(struct platform_device *pd,
1871                 unsigned int handle)
1872 {
1873         int result;
1874         int probe_base = 0;
1875         int ctl_base = 0;
1876         int ret = 0;
1877
1878         if (kbdbl_ctl) {
1879                 pr_warn("handle 0x%.4x: keyboard backlight setup already done for 0x%.4x\n",
1880                                 handle, kbdbl_ctl->handle);
1881                 return -EBUSY;
1882         }
1883
1884         /* verify the kbd backlight presence, some of these handles are not used
1885          * for keyboard backlight only
1886          */
1887         switch (handle) {
1888         case 0x0153:
1889                 probe_base = 0x0;
1890                 ctl_base = 0x0;
1891                 break;
1892         case 0x0137:
1893                 probe_base = 0x0B00;
1894                 ctl_base = 0x0C00;
1895                 break;
1896         default:
1897                 probe_base = 0x0100;
1898                 ctl_base = 0x4000;
1899                 break;
1900         }
1901
1902         ret = sony_call_snc_handle(handle, probe_base, &result);
1903         if (ret)
1904                 return ret;
1905
1906         if ((handle == 0x0137 && !(result & 0x02)) ||
1907                         !(result & 0x01)) {
1908                 dprintk("no backlight keyboard found\n");
1909                 return 0;
1910         }
1911
1912         kbdbl_ctl = kzalloc(sizeof(*kbdbl_ctl), GFP_KERNEL);
1913         if (!kbdbl_ctl)
1914                 return -ENOMEM;
1915
1916         kbdbl_ctl->mode = kbd_backlight;
1917         kbdbl_ctl->timeout = kbd_backlight_timeout;
1918         kbdbl_ctl->handle = handle;
1919         kbdbl_ctl->base = ctl_base;
1920         /* Some models do not allow timeout control */
1921         kbdbl_ctl->has_timeout = handle != 0x0153;
1922
1923         sysfs_attr_init(&kbdbl_ctl->mode_attr.attr);
1924         kbdbl_ctl->mode_attr.attr.name = "kbd_backlight";
1925         kbdbl_ctl->mode_attr.attr.mode = S_IRUGO | S_IWUSR;
1926         kbdbl_ctl->mode_attr.show = sony_nc_kbd_backlight_mode_show;
1927         kbdbl_ctl->mode_attr.store = sony_nc_kbd_backlight_mode_store;
1928
1929         ret = device_create_file(&pd->dev, &kbdbl_ctl->mode_attr);
1930         if (ret)
1931                 goto outkzalloc;
1932
1933         __sony_nc_kbd_backlight_mode_set(kbdbl_ctl->mode);
1934
1935         if (kbdbl_ctl->has_timeout) {
1936                 sysfs_attr_init(&kbdbl_ctl->timeout_attr.attr);
1937                 kbdbl_ctl->timeout_attr.attr.name = "kbd_backlight_timeout";
1938                 kbdbl_ctl->timeout_attr.attr.mode = S_IRUGO | S_IWUSR;
1939                 kbdbl_ctl->timeout_attr.show =
1940                         sony_nc_kbd_backlight_timeout_show;
1941                 kbdbl_ctl->timeout_attr.store =
1942                         sony_nc_kbd_backlight_timeout_store;
1943
1944                 ret = device_create_file(&pd->dev, &kbdbl_ctl->timeout_attr);
1945                 if (ret)
1946                         goto outmode;
1947
1948                 __sony_nc_kbd_backlight_timeout_set(kbdbl_ctl->timeout);
1949         }
1950
1951
1952         return 0;
1953
1954 outmode:
1955         device_remove_file(&pd->dev, &kbdbl_ctl->mode_attr);
1956 outkzalloc:
1957         kfree(kbdbl_ctl);
1958         kbdbl_ctl = NULL;
1959         return ret;
1960 }
1961
1962 static void sony_nc_kbd_backlight_cleanup(struct platform_device *pd,
1963                 unsigned int handle)
1964 {
1965         if (kbdbl_ctl && handle == kbdbl_ctl->handle) {
1966                 device_remove_file(&pd->dev, &kbdbl_ctl->mode_attr);
1967                 if (kbdbl_ctl->has_timeout)
1968                         device_remove_file(&pd->dev, &kbdbl_ctl->timeout_attr);
1969                 kfree(kbdbl_ctl);
1970                 kbdbl_ctl = NULL;
1971         }
1972 }
1973
1974 struct battery_care_control {
1975         struct device_attribute attrs[2];
1976         unsigned int handle;
1977 };
1978 static struct battery_care_control *bcare_ctl;
1979
1980 static ssize_t sony_nc_battery_care_limit_store(struct device *dev,
1981                 struct device_attribute *attr,
1982                 const char *buffer, size_t count)
1983 {
1984         unsigned int result, cmd;
1985         unsigned long value;
1986
1987         if (count > 31)
1988                 return -EINVAL;
1989
1990         if (kstrtoul(buffer, 10, &value))
1991                 return -EINVAL;
1992
1993         /*  limit values (2 bits):
1994          *  00 - none
1995          *  01 - 80%
1996          *  10 - 50%
1997          *  11 - 100%
1998          *
1999          *  bit 0: 0 disable BCL, 1 enable BCL
2000          *  bit 1: 1 tell to store the battery limit (see bits 6,7) too
2001          *  bits 2,3: reserved
2002          *  bits 4,5: store the limit into the EC
2003          *  bits 6,7: store the limit into the battery
2004          */
2005         cmd = 0;
2006
2007         if (value > 0) {
2008                 if (value <= 50)
2009                         cmd = 0x20;
2010
2011                 else if (value <= 80)
2012                         cmd = 0x10;
2013
2014                 else if (value <= 100)
2015                         cmd = 0x30;
2016
2017                 else
2018                         return -EINVAL;
2019
2020                 /*
2021                  * handle 0x0115 should allow storing on battery too;
2022                  * handle 0x0136 same as 0x0115 + health status;
2023                  * handle 0x013f, same as 0x0136 but no storing on the battery
2024                  */
2025                 if (bcare_ctl->handle != 0x013f)
2026                         cmd = cmd | (cmd << 2);
2027
2028                 cmd = (cmd | 0x1) << 0x10;
2029         }
2030
2031         if (sony_call_snc_handle(bcare_ctl->handle, cmd | 0x0100, &result))
2032                 return -EIO;
2033
2034         return count;
2035 }
2036
2037 static ssize_t sony_nc_battery_care_limit_show(struct device *dev,
2038                 struct device_attribute *attr, char *buffer)
2039 {
2040         unsigned int result, status;
2041
2042         if (sony_call_snc_handle(bcare_ctl->handle, 0x0000, &result))
2043                 return -EIO;
2044
2045         status = (result & 0x01) ? ((result & 0x30) >> 0x04) : 0;
2046         switch (status) {
2047         case 1:
2048                 status = 80;
2049                 break;
2050         case 2:
2051                 status = 50;
2052                 break;
2053         case 3:
2054                 status = 100;
2055                 break;
2056         default:
2057                 status = 0;
2058                 break;
2059         }
2060
2061         return snprintf(buffer, PAGE_SIZE, "%d\n", status);
2062 }
2063
2064 static ssize_t sony_nc_battery_care_health_show(struct device *dev,
2065                 struct device_attribute *attr, char *buffer)
2066 {
2067         ssize_t count = 0;
2068         unsigned int health;
2069
2070         if (sony_call_snc_handle(bcare_ctl->handle, 0x0200, &health))
2071                 return -EIO;
2072
2073         count = snprintf(buffer, PAGE_SIZE, "%d\n", health & 0xff);
2074
2075         return count;
2076 }
2077
2078 static int sony_nc_battery_care_setup(struct platform_device *pd,
2079                 unsigned int handle)
2080 {
2081         int ret = 0;
2082
2083         bcare_ctl = kzalloc(sizeof(struct battery_care_control), GFP_KERNEL);
2084         if (!bcare_ctl)
2085                 return -ENOMEM;
2086
2087         bcare_ctl->handle = handle;
2088
2089         sysfs_attr_init(&bcare_ctl->attrs[0].attr);
2090         bcare_ctl->attrs[0].attr.name = "battery_care_limiter";
2091         bcare_ctl->attrs[0].attr.mode = S_IRUGO | S_IWUSR;
2092         bcare_ctl->attrs[0].show = sony_nc_battery_care_limit_show;
2093         bcare_ctl->attrs[0].store = sony_nc_battery_care_limit_store;
2094
2095         ret = device_create_file(&pd->dev, &bcare_ctl->attrs[0]);
2096         if (ret)
2097                 goto outkzalloc;
2098
2099         /* 0x0115 is for models with no health reporting capability */
2100         if (handle == 0x0115)
2101                 return 0;
2102
2103         sysfs_attr_init(&bcare_ctl->attrs[1].attr);
2104         bcare_ctl->attrs[1].attr.name = "battery_care_health";
2105         bcare_ctl->attrs[1].attr.mode = S_IRUGO;
2106         bcare_ctl->attrs[1].show = sony_nc_battery_care_health_show;
2107
2108         ret = device_create_file(&pd->dev, &bcare_ctl->attrs[1]);
2109         if (ret)
2110                 goto outlimiter;
2111
2112         return 0;
2113
2114 outlimiter:
2115         device_remove_file(&pd->dev, &bcare_ctl->attrs[0]);
2116
2117 outkzalloc:
2118         kfree(bcare_ctl);
2119         bcare_ctl = NULL;
2120
2121         return ret;
2122 }
2123
2124 static void sony_nc_battery_care_cleanup(struct platform_device *pd)
2125 {
2126         if (bcare_ctl) {
2127                 device_remove_file(&pd->dev, &bcare_ctl->attrs[0]);
2128                 if (bcare_ctl->handle != 0x0115)
2129                         device_remove_file(&pd->dev, &bcare_ctl->attrs[1]);
2130
2131                 kfree(bcare_ctl);
2132                 bcare_ctl = NULL;
2133         }
2134 }
2135
2136 struct snc_thermal_ctrl {
2137         unsigned int mode;
2138         unsigned int profiles;
2139         struct device_attribute mode_attr;
2140         struct device_attribute profiles_attr;
2141 };
2142 static struct snc_thermal_ctrl *th_handle;
2143
2144 #define THM_PROFILE_MAX 3
2145 static const char * const snc_thermal_profiles[] = {
2146         "balanced",
2147         "silent",
2148         "performance"
2149 };
2150
2151 static int sony_nc_thermal_mode_set(unsigned short mode)
2152 {
2153         unsigned int result;
2154
2155         /* the thermal profile seems to be a two bit bitmask:
2156          * lsb -> silent
2157          * msb -> performance
2158          * no bit set is the normal operation and is always valid
2159          * Some vaio models only have "balanced" and "performance"
2160          */
2161         if ((mode && !(th_handle->profiles & mode)) || mode >= THM_PROFILE_MAX)
2162                 return -EINVAL;
2163
2164         if (sony_call_snc_handle(0x0122, mode << 0x10 | 0x0200, &result))
2165                 return -EIO;
2166
2167         th_handle->mode = mode;
2168
2169         return 0;
2170 }
2171
2172 static int sony_nc_thermal_mode_get(void)
2173 {
2174         unsigned int result;
2175
2176         if (sony_call_snc_handle(0x0122, 0x0100, &result))
2177                 return -EIO;
2178
2179         return result & 0xff;
2180 }
2181
2182 static ssize_t sony_nc_thermal_profiles_show(struct device *dev,
2183                 struct device_attribute *attr, char *buffer)
2184 {
2185         short cnt;
2186         size_t idx = 0;
2187
2188         for (cnt = 0; cnt < THM_PROFILE_MAX; cnt++) {
2189                 if (!cnt || (th_handle->profiles & cnt))
2190                         idx += snprintf(buffer + idx, PAGE_SIZE - idx, "%s ",
2191                                         snc_thermal_profiles[cnt]);
2192         }
2193         idx += snprintf(buffer + idx, PAGE_SIZE - idx, "\n");
2194
2195         return idx;
2196 }
2197
2198 static ssize_t sony_nc_thermal_mode_store(struct device *dev,
2199                 struct device_attribute *attr,
2200                 const char *buffer, size_t count)
2201 {
2202         unsigned short cmd;
2203         size_t len = count;
2204
2205         if (count == 0)
2206                 return -EINVAL;
2207
2208         /* skip the newline if present */
2209         if (buffer[len - 1] == '\n')
2210                 len--;
2211
2212         for (cmd = 0; cmd < THM_PROFILE_MAX; cmd++)
2213                 if (strncmp(buffer, snc_thermal_profiles[cmd], len) == 0)
2214                         break;
2215
2216         if (sony_nc_thermal_mode_set(cmd))
2217                 return -EIO;
2218
2219         return count;
2220 }
2221
2222 static ssize_t sony_nc_thermal_mode_show(struct device *dev,
2223                 struct device_attribute *attr, char *buffer)
2224 {
2225         ssize_t count = 0;
2226         int mode = sony_nc_thermal_mode_get();
2227
2228         if (mode < 0)
2229                 return mode;
2230
2231         count = snprintf(buffer, PAGE_SIZE, "%s\n", snc_thermal_profiles[mode]);
2232
2233         return count;
2234 }
2235
2236 static int sony_nc_thermal_setup(struct platform_device *pd)
2237 {
2238         int ret = 0;
2239         th_handle = kzalloc(sizeof(struct snc_thermal_ctrl), GFP_KERNEL);
2240         if (!th_handle)
2241                 return -ENOMEM;
2242
2243         ret = sony_call_snc_handle(0x0122, 0x0000, &th_handle->profiles);
2244         if (ret) {
2245                 pr_warn("couldn't to read the thermal profiles\n");
2246                 goto outkzalloc;
2247         }
2248
2249         ret = sony_nc_thermal_mode_get();
2250         if (ret < 0) {
2251                 pr_warn("couldn't to read the current thermal profile");
2252                 goto outkzalloc;
2253         }
2254         th_handle->mode = ret;
2255
2256         sysfs_attr_init(&th_handle->profiles_attr.attr);
2257         th_handle->profiles_attr.attr.name = "thermal_profiles";
2258         th_handle->profiles_attr.attr.mode = S_IRUGO;
2259         th_handle->profiles_attr.show = sony_nc_thermal_profiles_show;
2260
2261         sysfs_attr_init(&th_handle->mode_attr.attr);
2262         th_handle->mode_attr.attr.name = "thermal_control";
2263         th_handle->mode_attr.attr.mode = S_IRUGO | S_IWUSR;
2264         th_handle->mode_attr.show = sony_nc_thermal_mode_show;
2265         th_handle->mode_attr.store = sony_nc_thermal_mode_store;
2266
2267         ret = device_create_file(&pd->dev, &th_handle->profiles_attr);
2268         if (ret)
2269                 goto outkzalloc;
2270
2271         ret = device_create_file(&pd->dev, &th_handle->mode_attr);
2272         if (ret)
2273                 goto outprofiles;
2274
2275         return 0;
2276
2277 outprofiles:
2278         device_remove_file(&pd->dev, &th_handle->profiles_attr);
2279 outkzalloc:
2280         kfree(th_handle);
2281         th_handle = NULL;
2282         return ret;
2283 }
2284
2285 static void sony_nc_thermal_cleanup(struct platform_device *pd)
2286 {
2287         if (th_handle) {
2288                 device_remove_file(&pd->dev, &th_handle->profiles_attr);
2289                 device_remove_file(&pd->dev, &th_handle->mode_attr);
2290                 kfree(th_handle);
2291                 th_handle = NULL;
2292         }
2293 }
2294
2295 #ifdef CONFIG_PM_SLEEP
2296 static void sony_nc_thermal_resume(void)
2297 {
2298         unsigned int status = sony_nc_thermal_mode_get();
2299
2300         if (status != th_handle->mode)
2301                 sony_nc_thermal_mode_set(th_handle->mode);
2302 }
2303 #endif
2304
2305 /* resume on LID open */
2306 #define LID_RESUME_S5   0
2307 #define LID_RESUME_S4   1
2308 #define LID_RESUME_S3   2
2309 #define LID_RESUME_MAX  3
2310 struct snc_lid_resume_control {
2311         struct device_attribute attrs[LID_RESUME_MAX];
2312         unsigned int status;
2313         int handle;
2314 };
2315 static struct snc_lid_resume_control *lid_ctl;
2316
2317 static ssize_t sony_nc_lid_resume_store(struct device *dev,
2318                                         struct device_attribute *attr,
2319                                         const char *buffer, size_t count)
2320 {
2321         unsigned int result;
2322         unsigned long value;
2323         unsigned int pos = LID_RESUME_S5;
2324         if (count > 31)
2325                 return -EINVAL;
2326
2327         if (kstrtoul(buffer, 10, &value) || value > 1)
2328                 return -EINVAL;
2329
2330         /* the value we have to write to SNC is a bitmask:
2331          * +--------------+
2332          * | S3 | S4 | S5 |
2333          * +--------------+
2334          *   2    1    0
2335          */
2336         while (pos < LID_RESUME_MAX) {
2337                 if (&lid_ctl->attrs[pos].attr == &attr->attr)
2338                         break;
2339                 pos++;
2340         }
2341         if (pos == LID_RESUME_MAX)
2342                 return -EINVAL;
2343
2344         if (value)
2345                 value = lid_ctl->status | (1 << pos);
2346         else
2347                 value = lid_ctl->status & ~(1 << pos);
2348
2349         if (sony_call_snc_handle(lid_ctl->handle, value << 0x10 | 0x0100,
2350                                 &result))
2351                 return -EIO;
2352
2353         lid_ctl->status = value;
2354
2355         return count;
2356 }
2357
2358 static ssize_t sony_nc_lid_resume_show(struct device *dev,
2359                                         struct device_attribute *attr,
2360                                         char *buffer)
2361 {
2362         unsigned int pos = LID_RESUME_S5;
2363
2364         while (pos < LID_RESUME_MAX) {
2365                 if (&lid_ctl->attrs[pos].attr == &attr->attr)
2366                         return snprintf(buffer, PAGE_SIZE, "%d\n",
2367                                         (lid_ctl->status >> pos) & 0x01);
2368                 pos++;
2369         }
2370         return -EINVAL;
2371 }
2372
2373 static int sony_nc_lid_resume_setup(struct platform_device *pd,
2374                                         unsigned int handle)
2375 {
2376         unsigned int result;
2377         int i;
2378
2379         if (sony_call_snc_handle(handle, 0x0000, &result))
2380                 return -EIO;
2381
2382         lid_ctl = kzalloc(sizeof(struct snc_lid_resume_control), GFP_KERNEL);
2383         if (!lid_ctl)
2384                 return -ENOMEM;
2385
2386         lid_ctl->status = result & 0x7;
2387         lid_ctl->handle = handle;
2388
2389         sysfs_attr_init(&lid_ctl->attrs[0].attr);
2390         lid_ctl->attrs[LID_RESUME_S5].attr.name = "lid_resume_S5";
2391         lid_ctl->attrs[LID_RESUME_S5].attr.mode = S_IRUGO | S_IWUSR;
2392         lid_ctl->attrs[LID_RESUME_S5].show = sony_nc_lid_resume_show;
2393         lid_ctl->attrs[LID_RESUME_S5].store = sony_nc_lid_resume_store;
2394
2395         if (handle == 0x0119) {
2396                 sysfs_attr_init(&lid_ctl->attrs[1].attr);
2397                 lid_ctl->attrs[LID_RESUME_S4].attr.name = "lid_resume_S4";
2398                 lid_ctl->attrs[LID_RESUME_S4].attr.mode = S_IRUGO | S_IWUSR;
2399                 lid_ctl->attrs[LID_RESUME_S4].show = sony_nc_lid_resume_show;
2400                 lid_ctl->attrs[LID_RESUME_S4].store = sony_nc_lid_resume_store;
2401
2402                 sysfs_attr_init(&lid_ctl->attrs[2].attr);
2403                 lid_ctl->attrs[LID_RESUME_S3].attr.name = "lid_resume_S3";
2404                 lid_ctl->attrs[LID_RESUME_S3].attr.mode = S_IRUGO | S_IWUSR;
2405                 lid_ctl->attrs[LID_RESUME_S3].show = sony_nc_lid_resume_show;
2406                 lid_ctl->attrs[LID_RESUME_S3].store = sony_nc_lid_resume_store;
2407         }
2408         for (i = 0; i < LID_RESUME_MAX &&
2409                         lid_ctl->attrs[i].attr.name; i++) {
2410                 result = device_create_file(&pd->dev, &lid_ctl->attrs[i]);
2411                 if (result)
2412                         goto liderror;
2413         }
2414
2415         return 0;
2416
2417 liderror:
2418         for (i--; i >= 0; i--)
2419                 device_remove_file(&pd->dev, &lid_ctl->attrs[i]);
2420
2421         kfree(lid_ctl);
2422         lid_ctl = NULL;
2423
2424         return result;
2425 }
2426
2427 static void sony_nc_lid_resume_cleanup(struct platform_device *pd)
2428 {
2429         int i;
2430
2431         if (lid_ctl) {
2432                 for (i = 0; i < LID_RESUME_MAX; i++) {
2433                         if (!lid_ctl->attrs[i].attr.name)
2434                                 break;
2435
2436                         device_remove_file(&pd->dev, &lid_ctl->attrs[i]);
2437                 }
2438
2439                 kfree(lid_ctl);
2440                 lid_ctl = NULL;
2441         }
2442 }
2443
2444 /* GFX Switch position */
2445 enum gfx_switch {
2446         SPEED,
2447         STAMINA,
2448         AUTO
2449 };
2450 struct snc_gfx_switch_control {
2451         struct device_attribute attr;
2452         unsigned int handle;
2453 };
2454 static struct snc_gfx_switch_control *gfxs_ctl;
2455
2456 /* returns 0 for speed, 1 for stamina */
2457 static int __sony_nc_gfx_switch_status_get(void)
2458 {
2459         unsigned int result;
2460
2461         if (sony_call_snc_handle(gfxs_ctl->handle,
2462                                 gfxs_ctl->handle == 0x015B ? 0x0000 : 0x0100,
2463                                 &result))
2464                 return -EIO;
2465
2466         switch (gfxs_ctl->handle) {
2467         case 0x0146:
2468                 /* 1: discrete GFX (speed)
2469                  * 0: integrated GFX (stamina)
2470                  */
2471                 return result & 0x1 ? SPEED : STAMINA;
2472                 break;
2473         case 0x015B:
2474                 /* 0: discrete GFX (speed)
2475                  * 1: integrated GFX (stamina)
2476                  */
2477                 return result & 0x1 ? STAMINA : SPEED;
2478                 break;
2479         case 0x0128:
2480                 /* it's a more elaborated bitmask, for now:
2481                  * 2: integrated GFX (stamina)
2482                  * 0: discrete GFX (speed)
2483                  */
2484                 dprintk("GFX Status: 0x%x\n", result);
2485                 return result & 0x80 ? AUTO :
2486                         result & 0x02 ? STAMINA : SPEED;
2487                 break;
2488         }
2489         return -EINVAL;
2490 }
2491
2492 static ssize_t sony_nc_gfx_switch_status_show(struct device *dev,
2493                                        struct device_attribute *attr,
2494                                        char *buffer)
2495 {
2496         int pos = __sony_nc_gfx_switch_status_get();
2497
2498         if (pos < 0)
2499                 return pos;
2500
2501         return snprintf(buffer, PAGE_SIZE, "%s\n",
2502                                         pos == SPEED ? "speed" :
2503                                         pos == STAMINA ? "stamina" :
2504                                         pos == AUTO ? "auto" : "unknown");
2505 }
2506
2507 static int sony_nc_gfx_switch_setup(struct platform_device *pd,
2508                 unsigned int handle)
2509 {
2510         unsigned int result;
2511
2512         gfxs_ctl = kzalloc(sizeof(struct snc_gfx_switch_control), GFP_KERNEL);
2513         if (!gfxs_ctl)
2514                 return -ENOMEM;
2515
2516         gfxs_ctl->handle = handle;
2517
2518         sysfs_attr_init(&gfxs_ctl->attr.attr);
2519         gfxs_ctl->attr.attr.name = "gfx_switch_status";
2520         gfxs_ctl->attr.attr.mode = S_IRUGO;
2521         gfxs_ctl->attr.show = sony_nc_gfx_switch_status_show;
2522
2523         result = device_create_file(&pd->dev, &gfxs_ctl->attr);
2524         if (result)
2525                 goto gfxerror;
2526
2527         return 0;
2528
2529 gfxerror:
2530         kfree(gfxs_ctl);
2531         gfxs_ctl = NULL;
2532
2533         return result;
2534 }
2535
2536 static void sony_nc_gfx_switch_cleanup(struct platform_device *pd)
2537 {
2538         if (gfxs_ctl) {
2539                 device_remove_file(&pd->dev, &gfxs_ctl->attr);
2540
2541                 kfree(gfxs_ctl);
2542                 gfxs_ctl = NULL;
2543         }
2544 }
2545
2546 /* High speed charging function */
2547 static struct device_attribute *hsc_handle;
2548
2549 static ssize_t sony_nc_highspeed_charging_store(struct device *dev,
2550                 struct device_attribute *attr,
2551                 const char *buffer, size_t count)
2552 {
2553         unsigned int result;
2554         unsigned long value;
2555
2556         if (count > 31)
2557                 return -EINVAL;
2558
2559         if (kstrtoul(buffer, 10, &value) || value > 1)
2560                 return -EINVAL;
2561
2562         if (sony_call_snc_handle(0x0131, value << 0x10 | 0x0200, &result))
2563                 return -EIO;
2564
2565         return count;
2566 }
2567
2568 static ssize_t sony_nc_highspeed_charging_show(struct device *dev,
2569                 struct device_attribute *attr, char *buffer)
2570 {
2571         unsigned int result;
2572
2573         if (sony_call_snc_handle(0x0131, 0x0100, &result))
2574                 return -EIO;
2575
2576         return snprintf(buffer, PAGE_SIZE, "%d\n", result & 0x01);
2577 }
2578
2579 static int sony_nc_highspeed_charging_setup(struct platform_device *pd)
2580 {
2581         unsigned int result;
2582
2583         if (sony_call_snc_handle(0x0131, 0x0000, &result) || !(result & 0x01)) {
2584                 /* some models advertise the handle but have no implementation
2585                  * for it
2586                  */
2587                 pr_info("No High Speed Charging capability found\n");
2588                 return 0;
2589         }
2590
2591         hsc_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2592         if (!hsc_handle)
2593                 return -ENOMEM;
2594
2595         sysfs_attr_init(&hsc_handle->attr);
2596         hsc_handle->attr.name = "battery_highspeed_charging";
2597         hsc_handle->attr.mode = S_IRUGO | S_IWUSR;
2598         hsc_handle->show = sony_nc_highspeed_charging_show;
2599         hsc_handle->store = sony_nc_highspeed_charging_store;
2600
2601         result = device_create_file(&pd->dev, hsc_handle);
2602         if (result) {
2603                 kfree(hsc_handle);
2604                 hsc_handle = NULL;
2605                 return result;
2606         }
2607
2608         return 0;
2609 }
2610
2611 static void sony_nc_highspeed_charging_cleanup(struct platform_device *pd)
2612 {
2613         if (hsc_handle) {
2614                 device_remove_file(&pd->dev, hsc_handle);
2615                 kfree(hsc_handle);
2616                 hsc_handle = NULL;
2617         }
2618 }
2619
2620 /* low battery function */
2621 static struct device_attribute *lowbatt_handle;
2622
2623 static ssize_t sony_nc_lowbatt_store(struct device *dev,
2624                 struct device_attribute *attr,
2625                 const char *buffer, size_t count)
2626 {
2627         unsigned int result;
2628         unsigned long value;
2629
2630         if (count > 31)
2631                 return -EINVAL;
2632
2633         if (kstrtoul(buffer, 10, &value) || value > 1)
2634                 return -EINVAL;
2635
2636         if (sony_call_snc_handle(0x0121, value << 8, &result))
2637                 return -EIO;
2638
2639         return count;
2640 }
2641
2642 static ssize_t sony_nc_lowbatt_show(struct device *dev,
2643                 struct device_attribute *attr, char *buffer)
2644 {
2645         unsigned int result;
2646
2647         if (sony_call_snc_handle(0x0121, 0x0200, &result))
2648                 return -EIO;
2649
2650         return snprintf(buffer, PAGE_SIZE, "%d\n", result & 1);
2651 }
2652
2653 static int sony_nc_lowbatt_setup(struct platform_device *pd)
2654 {
2655         unsigned int result;
2656
2657         lowbatt_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2658         if (!lowbatt_handle)
2659                 return -ENOMEM;
2660
2661         sysfs_attr_init(&lowbatt_handle->attr);
2662         lowbatt_handle->attr.name = "lowbatt_hibernate";
2663         lowbatt_handle->attr.mode = S_IRUGO | S_IWUSR;
2664         lowbatt_handle->show = sony_nc_lowbatt_show;
2665         lowbatt_handle->store = sony_nc_lowbatt_store;
2666
2667         result = device_create_file(&pd->dev, lowbatt_handle);
2668         if (result) {
2669                 kfree(lowbatt_handle);
2670                 lowbatt_handle = NULL;
2671                 return result;
2672         }
2673
2674         return 0;
2675 }
2676
2677 static void sony_nc_lowbatt_cleanup(struct platform_device *pd)
2678 {
2679         if (lowbatt_handle) {
2680                 device_remove_file(&pd->dev, lowbatt_handle);
2681                 kfree(lowbatt_handle);
2682                 lowbatt_handle = NULL;
2683         }
2684 }
2685
2686 /* fan speed function */
2687 static struct device_attribute *fan_handle, *hsf_handle;
2688
2689 static ssize_t sony_nc_hsfan_store(struct device *dev,
2690                 struct device_attribute *attr,
2691                 const char *buffer, size_t count)
2692 {
2693         unsigned int result;
2694         unsigned long value;
2695
2696         if (count > 31)
2697                 return -EINVAL;
2698
2699         if (kstrtoul(buffer, 10, &value) || value > 1)
2700                 return -EINVAL;
2701
2702         if (sony_call_snc_handle(0x0149, value << 0x10 | 0x0200, &result))
2703                 return -EIO;
2704
2705         return count;
2706 }
2707
2708 static ssize_t sony_nc_hsfan_show(struct device *dev,
2709                 struct device_attribute *attr, char *buffer)
2710 {
2711         unsigned int result;
2712
2713         if (sony_call_snc_handle(0x0149, 0x0100, &result))
2714                 return -EIO;
2715
2716         return snprintf(buffer, PAGE_SIZE, "%d\n", result & 0x01);
2717 }
2718
2719 static ssize_t sony_nc_fanspeed_show(struct device *dev,
2720                 struct device_attribute *attr, char *buffer)
2721 {
2722         unsigned int result;
2723
2724         if (sony_call_snc_handle(0x0149, 0x0300, &result))
2725                 return -EIO;
2726
2727         return snprintf(buffer, PAGE_SIZE, "%d\n", result & 0xff);
2728 }
2729
2730 static int sony_nc_fanspeed_setup(struct platform_device *pd)
2731 {
2732         unsigned int result;
2733
2734         fan_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2735         if (!fan_handle)
2736                 return -ENOMEM;
2737
2738         hsf_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2739         if (!hsf_handle) {
2740                 result = -ENOMEM;
2741                 goto out_hsf_handle_alloc;
2742         }
2743
2744         sysfs_attr_init(&fan_handle->attr);
2745         fan_handle->attr.name = "fanspeed";
2746         fan_handle->attr.mode = S_IRUGO;
2747         fan_handle->show = sony_nc_fanspeed_show;
2748         fan_handle->store = NULL;
2749
2750         sysfs_attr_init(&hsf_handle->attr);
2751         hsf_handle->attr.name = "fan_forced";
2752         hsf_handle->attr.mode = S_IRUGO | S_IWUSR;
2753         hsf_handle->show = sony_nc_hsfan_show;
2754         hsf_handle->store = sony_nc_hsfan_store;
2755
2756         result = device_create_file(&pd->dev, fan_handle);
2757         if (result)
2758                 goto out_fan_handle;
2759
2760         result = device_create_file(&pd->dev, hsf_handle);
2761         if (result)
2762                 goto out_hsf_handle;
2763
2764         return 0;
2765
2766 out_hsf_handle:
2767         device_remove_file(&pd->dev, fan_handle);
2768
2769 out_fan_handle:
2770         kfree(hsf_handle);
2771         hsf_handle = NULL;
2772
2773 out_hsf_handle_alloc:
2774         kfree(fan_handle);
2775         fan_handle = NULL;
2776         return result;
2777 }
2778
2779 static void sony_nc_fanspeed_cleanup(struct platform_device *pd)
2780 {
2781         if (fan_handle) {
2782                 device_remove_file(&pd->dev, fan_handle);
2783                 kfree(fan_handle);
2784                 fan_handle = NULL;
2785         }
2786         if (hsf_handle) {
2787                 device_remove_file(&pd->dev, hsf_handle);
2788                 kfree(hsf_handle);
2789                 hsf_handle = NULL;
2790         }
2791 }
2792
2793 /* USB charge function */
2794 static struct device_attribute *uc_handle;
2795
2796 static ssize_t sony_nc_usb_charge_store(struct device *dev,
2797                 struct device_attribute *attr,
2798                 const char *buffer, size_t count)
2799 {
2800         unsigned int result;
2801         unsigned long value;
2802
2803         if (count > 31)
2804                 return -EINVAL;
2805
2806         if (kstrtoul(buffer, 10, &value) || value > 1)
2807                 return -EINVAL;
2808
2809         if (sony_call_snc_handle(0x0155, value << 0x10 | 0x0100, &result))
2810                 return -EIO;
2811
2812         return count;
2813 }
2814
2815 static ssize_t sony_nc_usb_charge_show(struct device *dev,
2816                 struct device_attribute *attr, char *buffer)
2817 {
2818         unsigned int result;
2819
2820         if (sony_call_snc_handle(0x0155, 0x0000, &result))
2821                 return -EIO;
2822
2823         return snprintf(buffer, PAGE_SIZE, "%d\n", result & 0x01);
2824 }
2825
2826 static int sony_nc_usb_charge_setup(struct platform_device *pd)
2827 {
2828         unsigned int result;
2829
2830         if (sony_call_snc_handle(0x0155, 0x0000, &result) || !(result & 0x01)) {
2831                 /* some models advertise the handle but have no implementation
2832                  * for it
2833                  */
2834                 pr_info("No USB Charge capability found\n");
2835                 return 0;
2836         }
2837
2838         uc_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2839         if (!uc_handle)
2840                 return -ENOMEM;
2841
2842         sysfs_attr_init(&uc_handle->attr);
2843         uc_handle->attr.name = "usb_charge";
2844         uc_handle->attr.mode = S_IRUGO | S_IWUSR;
2845         uc_handle->show = sony_nc_usb_charge_show;
2846         uc_handle->store = sony_nc_usb_charge_store;
2847
2848         result = device_create_file(&pd->dev, uc_handle);
2849         if (result) {
2850                 kfree(uc_handle);
2851                 uc_handle = NULL;
2852                 return result;
2853         }
2854
2855         return 0;
2856 }
2857
2858 static void sony_nc_usb_charge_cleanup(struct platform_device *pd)
2859 {
2860         if (uc_handle) {
2861                 device_remove_file(&pd->dev, uc_handle);
2862                 kfree(uc_handle);
2863                 uc_handle = NULL;
2864         }
2865 }
2866
2867 /* Panel ID function */
2868 static struct device_attribute *panel_handle;
2869
2870 static ssize_t sony_nc_panelid_show(struct device *dev,
2871                 struct device_attribute *attr, char *buffer)
2872 {
2873         unsigned int result;
2874
2875         if (sony_call_snc_handle(0x011D, 0x0000, &result))
2876                 return -EIO;
2877
2878         return snprintf(buffer, PAGE_SIZE, "%d\n", result);
2879 }
2880
2881 static int sony_nc_panelid_setup(struct platform_device *pd)
2882 {
2883         unsigned int result;
2884
2885         panel_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2886         if (!panel_handle)
2887                 return -ENOMEM;
2888
2889         sysfs_attr_init(&panel_handle->attr);
2890         panel_handle->attr.name = "panel_id";
2891         panel_handle->attr.mode = S_IRUGO;
2892         panel_handle->show = sony_nc_panelid_show;
2893         panel_handle->store = NULL;
2894
2895         result = device_create_file(&pd->dev, panel_handle);
2896         if (result) {
2897                 kfree(panel_handle);
2898                 panel_handle = NULL;
2899                 return result;
2900         }
2901
2902         return 0;
2903 }
2904
2905 static void sony_nc_panelid_cleanup(struct platform_device *pd)
2906 {
2907         if (panel_handle) {
2908                 device_remove_file(&pd->dev, panel_handle);
2909                 kfree(panel_handle);
2910                 panel_handle = NULL;
2911         }
2912 }
2913
2914 /* smart connect function */
2915 static struct device_attribute *sc_handle;
2916
2917 static ssize_t sony_nc_smart_conn_store(struct device *dev,
2918                 struct device_attribute *attr,
2919                 const char *buffer, size_t count)
2920 {
2921         unsigned int result;
2922         unsigned long value;
2923
2924         if (count > 31)
2925                 return -EINVAL;
2926
2927         if (kstrtoul(buffer, 10, &value) || value > 1)
2928                 return -EINVAL;
2929
2930         if (sony_call_snc_handle(0x0168, value << 0x10, &result))
2931                 return -EIO;
2932
2933         return count;
2934 }
2935
2936 static int sony_nc_smart_conn_setup(struct platform_device *pd)
2937 {
2938         unsigned int result;
2939
2940         sc_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2941         if (!sc_handle)
2942                 return -ENOMEM;
2943
2944         sysfs_attr_init(&sc_handle->attr);
2945         sc_handle->attr.name = "smart_connect";
2946         sc_handle->attr.mode = S_IWUSR;
2947         sc_handle->show = NULL;
2948         sc_handle->store = sony_nc_smart_conn_store;
2949
2950         result = device_create_file(&pd->dev, sc_handle);
2951         if (result) {
2952                 kfree(sc_handle);
2953                 sc_handle = NULL;
2954                 return result;
2955         }
2956
2957         return 0;
2958 }
2959
2960 static void sony_nc_smart_conn_cleanup(struct platform_device *pd)
2961 {
2962         if (sc_handle) {
2963                 device_remove_file(&pd->dev, sc_handle);
2964                 kfree(sc_handle);
2965                 sc_handle = NULL;
2966         }
2967 }
2968
2969 /* Touchpad enable/disable */
2970 struct touchpad_control {
2971         struct device_attribute attr;
2972         int handle;
2973 };
2974 static struct touchpad_control *tp_ctl;
2975
2976 static ssize_t sony_nc_touchpad_store(struct device *dev,
2977                 struct device_attribute *attr, const char *buffer, size_t count)
2978 {
2979         unsigned int result;
2980         unsigned long value;
2981
2982         if (count > 31)
2983                 return -EINVAL;
2984
2985         if (kstrtoul(buffer, 10, &value) || value > 1)
2986                 return -EINVAL;
2987
2988         /* sysfs: 0 disabled, 1 enabled
2989          * EC: 0 enabled, 1 disabled
2990          */
2991         if (sony_call_snc_handle(tp_ctl->handle,
2992                                 (!value << 0x10) | 0x100, &result))
2993                 return -EIO;
2994
2995         return count;
2996 }
2997
2998 static ssize_t sony_nc_touchpad_show(struct device *dev,
2999                 struct device_attribute *attr, char *buffer)
3000 {
3001         unsigned int result;
3002
3003         if (sony_call_snc_handle(tp_ctl->handle, 0x000, &result))
3004                 return -EINVAL;
3005
3006         return snprintf(buffer, PAGE_SIZE, "%d\n", !(result & 0x01));
3007 }
3008
3009 static int sony_nc_touchpad_setup(struct platform_device *pd,
3010                 unsigned int handle)
3011 {
3012         int ret = 0;
3013
3014         tp_ctl = kzalloc(sizeof(struct touchpad_control), GFP_KERNEL);
3015         if (!tp_ctl)
3016                 return -ENOMEM;
3017
3018         tp_ctl->handle = handle;
3019
3020         sysfs_attr_init(&tp_ctl->attr.attr);
3021         tp_ctl->attr.attr.name = "touchpad";
3022         tp_ctl->attr.attr.mode = S_IRUGO | S_IWUSR;
3023         tp_ctl->attr.show = sony_nc_touchpad_show;
3024         tp_ctl->attr.store = sony_nc_touchpad_store;
3025
3026         ret = device_create_file(&pd->dev, &tp_ctl->attr);
3027         if (ret) {
3028                 kfree(tp_ctl);
3029                 tp_ctl = NULL;
3030         }
3031
3032         return ret;
3033 }
3034
3035 static void sony_nc_touchpad_cleanup(struct platform_device *pd)
3036 {
3037         if (tp_ctl) {
3038                 device_remove_file(&pd->dev, &tp_ctl->attr);
3039                 kfree(tp_ctl);
3040                 tp_ctl = NULL;
3041         }
3042 }
3043
3044 static void sony_nc_backlight_ng_read_limits(int handle,
3045                 struct sony_backlight_props *props)
3046 {
3047         u64 offset;
3048         int i;
3049         int lvl_table_len = 0;
3050         u8 min = 0xff, max = 0x00;
3051         unsigned char buffer[32] = { 0 };
3052
3053         props->handle = handle;
3054         props->offset = 0;
3055         props->maxlvl = 0xff;
3056
3057         offset = sony_find_snc_handle(handle);
3058
3059         /* try to read the boundaries from ACPI tables, if we fail the above
3060          * defaults should be reasonable
3061          */
3062         i = sony_nc_buffer_call(sony_nc_acpi_handle, "SN06", &offset, buffer,
3063                         32);
3064         if (i < 0)
3065                 return;
3066
3067         switch (handle) {
3068         case 0x012f:
3069         case 0x0137:
3070                 lvl_table_len = 9;
3071                 break;
3072         case 0x143:
3073         case 0x14b:
3074         case 0x14c:
3075                 lvl_table_len = 16;
3076                 break;
3077         }
3078
3079         /* the buffer lists brightness levels available, brightness levels are
3080          * from position 0 to 8 in the array, other values are used by ALS
3081          * control.
3082          */
3083         for (i = 0; i < lvl_table_len && i < ARRAY_SIZE(buffer); i++) {
3084
3085                 dprintk("Brightness level: %d\n", buffer[i]);
3086
3087                 if (!buffer[i])
3088                         break;
3089
3090                 if (buffer[i] > max)
3091                         max = buffer[i];
3092                 if (buffer[i] < min)
3093                         min = buffer[i];
3094         }
3095         props->offset = min;
3096         props->maxlvl = max;
3097         dprintk("Brightness levels: min=%d max=%d\n", props->offset,
3098                         props->maxlvl);
3099 }
3100
3101 static void sony_nc_backlight_setup(void)
3102 {
3103         int max_brightness = 0;
3104         const struct backlight_ops *ops = NULL;
3105         struct backlight_properties props;
3106
3107         if (sony_find_snc_handle(0x12f) >= 0) {
3108                 ops = &sony_backlight_ng_ops;
3109                 sony_bl_props.cmd_base = 0x0100;
3110                 sony_nc_backlight_ng_read_limits(0x12f, &sony_bl_props);
3111                 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
3112
3113         } else if (sony_find_snc_handle(0x137) >= 0) {
3114                 ops = &sony_backlight_ng_ops;
3115                 sony_bl_props.cmd_base = 0x0100;
3116                 sony_nc_backlight_ng_read_limits(0x137, &sony_bl_props);
3117                 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
3118
3119         } else if (sony_find_snc_handle(0x143) >= 0) {
3120                 ops = &sony_backlight_ng_ops;
3121                 sony_bl_props.cmd_base = 0x3000;
3122                 sony_nc_backlight_ng_read_limits(0x143, &sony_bl_props);
3123                 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
3124
3125         } else if (sony_find_snc_handle(0x14b) >= 0) {
3126                 ops = &sony_backlight_ng_ops;
3127                 sony_bl_props.cmd_base = 0x3000;
3128                 sony_nc_backlight_ng_read_limits(0x14b, &sony_bl_props);
3129                 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
3130
3131         } else if (sony_find_snc_handle(0x14c) >= 0) {
3132                 ops = &sony_backlight_ng_ops;
3133                 sony_bl_props.cmd_base = 0x3000;
3134                 sony_nc_backlight_ng_read_limits(0x14c, &sony_bl_props);
3135                 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
3136
3137         } else if (acpi_has_method(sony_nc_acpi_handle, "GBRT")) {
3138                 ops = &sony_backlight_ops;
3139                 max_brightness = SONY_MAX_BRIGHTNESS - 1;
3140
3141         } else
3142                 return;
3143
3144         memset(&props, 0, sizeof(struct backlight_properties));
3145         props.type = BACKLIGHT_PLATFORM;
3146         props.max_brightness = max_brightness;
3147         sony_bl_props.dev = backlight_device_register("sony", NULL,
3148                                                       &sony_bl_props,
3149                                                       ops, &props);
3150
3151         if (IS_ERR(sony_bl_props.dev)) {
3152                 pr_warn("unable to register backlight device\n");
3153                 sony_bl_props.dev = NULL;
3154         } else
3155                 sony_bl_props.dev->props.brightness =
3156                         ops->get_brightness(sony_bl_props.dev);
3157 }
3158
3159 static void sony_nc_backlight_cleanup(void)
3160 {
3161         backlight_device_unregister(sony_bl_props.dev);
3162 }
3163
3164 static int sony_nc_add(struct acpi_device *device)
3165 {
3166         acpi_status status;
3167         int result = 0;
3168         struct sony_nc_value *item;
3169
3170         sony_nc_acpi_device = device;
3171         strcpy(acpi_device_class(device), "sony/hotkey");
3172
3173         sony_nc_acpi_handle = device->handle;
3174
3175         /* read device status */
3176         result = acpi_bus_get_status(device);
3177         /* bail IFF the above call was successful and the device is not present */
3178         if (!result && !device->status.present) {
3179                 dprintk("Device not present\n");
3180                 result = -ENODEV;
3181                 goto outwalk;
3182         }
3183
3184         result = sony_pf_add();
3185         if (result)
3186                 goto outpresent;
3187
3188         if (debug) {
3189                 status = acpi_walk_namespace(ACPI_TYPE_METHOD,
3190                                 sony_nc_acpi_handle, 1, sony_walk_callback,
3191                                 NULL, NULL, NULL);
3192                 if (ACPI_FAILURE(status)) {
3193                         pr_warn("unable to walk acpi resources\n");
3194                         result = -ENODEV;
3195                         goto outpresent;
3196                 }
3197         }
3198
3199         result = sony_laptop_setup_input(device);
3200         if (result) {
3201                 pr_err("Unable to create input devices\n");
3202                 goto outplatform;
3203         }
3204
3205         if (acpi_has_method(sony_nc_acpi_handle, "ECON")) {
3206                 int arg = 1;
3207                 if (sony_nc_int_call(sony_nc_acpi_handle, "ECON", &arg, NULL))
3208                         dprintk("ECON Method failed\n");
3209         }
3210
3211         if (acpi_has_method(sony_nc_acpi_handle, "SN00")) {
3212                 dprintk("Doing SNC setup\n");
3213                 /* retrieve the available handles */
3214                 result = sony_nc_handles_setup(sony_pf_device);
3215                 if (!result)
3216                         sony_nc_function_setup(device, sony_pf_device);
3217         }
3218
3219         if (acpi_video_get_backlight_type() == acpi_backlight_vendor)
3220                 sony_nc_backlight_setup();
3221
3222         /* create sony_pf sysfs attributes related to the SNC device */
3223         for (item = sony_nc_values; item->name; ++item) {
3224
3225                 if (!debug && item->debug)
3226                         continue;
3227
3228                 /* find the available acpiget as described in the DSDT */
3229                 for (; item->acpiget && *item->acpiget; ++item->acpiget) {
3230                         if (acpi_has_method(sony_nc_acpi_handle,
3231                                                         *item->acpiget)) {
3232                                 dprintk("Found %s getter: %s\n",
3233                                                 item->name, *item->acpiget);
3234                                 item->devattr.attr.mode |= S_IRUGO;
3235                                 break;
3236                         }
3237                 }
3238
3239                 /* find the available acpiset as described in the DSDT */
3240                 for (; item->acpiset && *item->acpiset; ++item->acpiset) {
3241                         if (acpi_has_method(sony_nc_acpi_handle,
3242                                                         *item->acpiset)) {
3243                                 dprintk("Found %s setter: %s\n",
3244                                                 item->name, *item->acpiset);
3245                                 item->devattr.attr.mode |= S_IWUSR;
3246                                 break;
3247                         }
3248                 }
3249
3250                 if (item->devattr.attr.mode != 0) {
3251                         result =
3252                             device_create_file(&sony_pf_device->dev,
3253                                                &item->devattr);
3254                         if (result)
3255                                 goto out_sysfs;
3256                 }
3257         }
3258
3259         pr_info("SNC setup done.\n");
3260         return 0;
3261
3262 out_sysfs:
3263         for (item = sony_nc_values; item->name; ++item) {
3264                 device_remove_file(&sony_pf_device->dev, &item->devattr);
3265         }
3266         sony_nc_backlight_cleanup();
3267         sony_nc_function_cleanup(sony_pf_device);
3268         sony_nc_handles_cleanup(sony_pf_device);
3269
3270 outplatform:
3271         sony_laptop_remove_input();
3272
3273 outpresent:
3274         sony_pf_remove();
3275
3276 outwalk:
3277         sony_nc_rfkill_cleanup();
3278         return result;
3279 }
3280
3281 static int sony_nc_remove(struct acpi_device *device)
3282 {
3283         struct sony_nc_value *item;
3284
3285         sony_nc_backlight_cleanup();
3286
3287         sony_nc_acpi_device = NULL;
3288
3289         for (item = sony_nc_values; item->name; ++item) {
3290                 device_remove_file(&sony_pf_device->dev, &item->devattr);
3291         }
3292
3293         sony_nc_function_cleanup(sony_pf_device);
3294         sony_nc_handles_cleanup(sony_pf_device);
3295         sony_pf_remove();
3296         sony_laptop_remove_input();
3297         dprintk(SONY_NC_DRIVER_NAME " removed.\n");
3298
3299         return 0;
3300 }
3301
3302 static const struct acpi_device_id sony_device_ids[] = {
3303         {SONY_NC_HID, 0},
3304         {SONY_PIC_HID, 0},
3305         {"", 0},
3306 };
3307 MODULE_DEVICE_TABLE(acpi, sony_device_ids);
3308
3309 static const struct acpi_device_id sony_nc_device_ids[] = {
3310         {SONY_NC_HID, 0},
3311         {"", 0},
3312 };
3313
3314 static struct acpi_driver sony_nc_driver = {
3315         .name = SONY_NC_DRIVER_NAME,
3316         .class = SONY_NC_CLASS,
3317         .ids = sony_nc_device_ids,
3318         .owner = THIS_MODULE,
3319         .ops = {
3320                 .add = sony_nc_add,
3321                 .remove = sony_nc_remove,
3322                 .notify = sony_nc_notify,
3323                 },
3324         .drv.pm = &sony_nc_pm,
3325 };
3326
3327 /*********** SPIC (SNY6001) Device ***********/
3328
3329 #define SONYPI_DEVICE_TYPE1     0x00000001
3330 #define SONYPI_DEVICE_TYPE2     0x00000002
3331 #define SONYPI_DEVICE_TYPE3     0x00000004
3332
3333 #define SONYPI_TYPE1_OFFSET     0x04
3334 #define SONYPI_TYPE2_OFFSET     0x12
3335 #define SONYPI_TYPE3_OFFSET     0x12
3336
3337 struct sony_pic_ioport {
3338         struct acpi_resource_io io1;
3339         struct acpi_resource_io io2;
3340         struct list_head        list;
3341 };
3342
3343 struct sony_pic_irq {
3344         struct acpi_resource_irq        irq;
3345         struct list_head                list;
3346 };
3347
3348 struct sonypi_eventtypes {
3349         u8                      data;
3350         unsigned long           mask;
3351         struct sonypi_event     *events;
3352 };
3353
3354 struct sony_pic_dev {
3355         struct acpi_device              *acpi_dev;
3356         struct sony_pic_irq             *cur_irq;
3357         struct sony_pic_ioport          *cur_ioport;
3358         struct list_head                interrupts;
3359         struct list_head                ioports;
3360         struct mutex                    lock;
3361         struct sonypi_eventtypes        *event_types;
3362         int                             (*handle_irq)(const u8, const u8);
3363         int                             model;
3364         u16                             evport_offset;
3365         u8                              camera_power;
3366         u8                              bluetooth_power;
3367         u8                              wwan_power;
3368 };
3369
3370 static struct sony_pic_dev spic_dev = {
3371         .interrupts     = LIST_HEAD_INIT(spic_dev.interrupts),
3372         .ioports        = LIST_HEAD_INIT(spic_dev.ioports),
3373 };
3374
3375 static int spic_drv_registered;
3376
3377 /* Event masks */
3378 #define SONYPI_JOGGER_MASK                      0x00000001
3379 #define SONYPI_CAPTURE_MASK                     0x00000002
3380 #define SONYPI_FNKEY_MASK                       0x00000004
3381 #define SONYPI_BLUETOOTH_MASK                   0x00000008
3382 #define SONYPI_PKEY_MASK                        0x00000010
3383 #define SONYPI_BACK_MASK                        0x00000020
3384 #define SONYPI_HELP_MASK                        0x00000040
3385 #define SONYPI_LID_MASK                         0x00000080
3386 #define SONYPI_ZOOM_MASK                        0x00000100
3387 #define SONYPI_THUMBPHRASE_MASK                 0x00000200
3388 #define SONYPI_MEYE_MASK                        0x00000400
3389 #define SONYPI_MEMORYSTICK_MASK                 0x00000800
3390 #define SONYPI_BATTERY_MASK                     0x00001000
3391 #define SONYPI_WIRELESS_MASK                    0x00002000
3392
3393 struct sonypi_event {
3394         u8      data;
3395         u8      event;
3396 };
3397
3398 /* The set of possible button release events */
3399 static struct sonypi_event sonypi_releaseev[] = {
3400         { 0x00, SONYPI_EVENT_ANYBUTTON_RELEASED },
3401         { 0, 0 }
3402 };
3403
3404 /* The set of possible jogger events  */
3405 static struct sonypi_event sonypi_joggerev[] = {
3406         { 0x1f, SONYPI_EVENT_JOGDIAL_UP },
3407         { 0x01, SONYPI_EVENT_JOGDIAL_DOWN },
3408         { 0x5f, SONYPI_EVENT_JOGDIAL_UP_PRESSED },
3409         { 0x41, SONYPI_EVENT_JOGDIAL_DOWN_PRESSED },
3410         { 0x1e, SONYPI_EVENT_JOGDIAL_FAST_UP },
3411         { 0x02, SONYPI_EVENT_JOGDIAL_FAST_DOWN },
3412         { 0x5e, SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED },
3413         { 0x42, SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED },
3414         { 0x1d, SONYPI_EVENT_JOGDIAL_VFAST_UP },
3415         { 0x03, SONYPI_EVENT_JOGDIAL_VFAST_DOWN },
3416         { 0x5d, SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED },
3417         { 0x43, SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED },
3418         { 0x40, SONYPI_EVENT_JOGDIAL_PRESSED },
3419         { 0, 0 }
3420 };
3421
3422 /* The set of possible capture button events */
3423 static struct sonypi_event sonypi_captureev[] = {
3424         { 0x05, SONYPI_EVENT_CAPTURE_PARTIALPRESSED },
3425         { 0x07, SONYPI_EVENT_CAPTURE_PRESSED },
3426         { 0x40, SONYPI_EVENT_CAPTURE_PRESSED },
3427         { 0x01, SONYPI_EVENT_CAPTURE_PARTIALRELEASED },
3428         { 0, 0 }
3429 };
3430
3431 /* The set of possible fnkeys events */
3432 static struct sonypi_event sonypi_fnkeyev[] = {
3433         { 0x10, SONYPI_EVENT_FNKEY_ESC },
3434         { 0x11, SONYPI_EVENT_FNKEY_F1 },
3435         { 0x12, SONYPI_EVENT_FNKEY_F2 },
3436         { 0x13, SONYPI_EVENT_FNKEY_F3 },
3437         { 0x14, SONYPI_EVENT_FNKEY_F4 },
3438         { 0x15, SONYPI_EVENT_FNKEY_F5 },
3439         { 0x16, SONYPI_EVENT_FNKEY_F6 },
3440         { 0x17, SONYPI_EVENT_FNKEY_F7 },
3441         { 0x18, SONYPI_EVENT_FNKEY_F8 },
3442         { 0x19, SONYPI_EVENT_FNKEY_F9 },
3443         { 0x1a, SONYPI_EVENT_FNKEY_F10 },
3444         { 0x1b, SONYPI_EVENT_FNKEY_F11 },
3445         { 0x1c, SONYPI_EVENT_FNKEY_F12 },
3446         { 0x1f, SONYPI_EVENT_FNKEY_RELEASED },
3447         { 0x21, SONYPI_EVENT_FNKEY_1 },
3448         { 0x22, SONYPI_EVENT_FNKEY_2 },
3449         { 0x31, SONYPI_EVENT_FNKEY_D },
3450         { 0x32, SONYPI_EVENT_FNKEY_E },
3451         { 0x33, SONYPI_EVENT_FNKEY_F },
3452         { 0x34, SONYPI_EVENT_FNKEY_S },
3453         { 0x35, SONYPI_EVENT_FNKEY_B },
3454         { 0x36, SONYPI_EVENT_FNKEY_ONLY },
3455         { 0, 0 }
3456 };
3457
3458 /* The set of possible program key events */
3459 static struct sonypi_event sonypi_pkeyev[] = {
3460         { 0x01, SONYPI_EVENT_PKEY_P1 },
3461         { 0x02, SONYPI_EVENT_PKEY_P2 },
3462         { 0x04, SONYPI_EVENT_PKEY_P3 },
3463         { 0x20, SONYPI_EVENT_PKEY_P1 },
3464         { 0, 0 }
3465 };
3466
3467 /* The set of possible bluetooth events */
3468 static struct sonypi_event sonypi_blueev[] = {
3469         { 0x55, SONYPI_EVENT_BLUETOOTH_PRESSED },
3470         { 0x59, SONYPI_EVENT_BLUETOOTH_ON },
3471         { 0x5a, SONYPI_EVENT_BLUETOOTH_OFF },
3472         { 0, 0 }
3473 };
3474
3475 /* The set of possible wireless events */
3476 static struct sonypi_event sonypi_wlessev[] = {
3477         { 0x59, SONYPI_EVENT_IGNORE },
3478         { 0x5a, SONYPI_EVENT_IGNORE },
3479         { 0, 0 }
3480 };
3481
3482 /* The set of possible back button events */
3483 static struct sonypi_event sonypi_backev[] = {
3484         { 0x20, SONYPI_EVENT_BACK_PRESSED },
3485         { 0, 0 }
3486 };
3487
3488 /* The set of possible help button events */
3489 static struct sonypi_event sonypi_helpev[] = {
3490         { 0x3b, SONYPI_EVENT_HELP_PRESSED },
3491         { 0, 0 }
3492 };
3493
3494
3495 /* The set of possible lid events */
3496 static struct sonypi_event sonypi_lidev[] = {
3497         { 0x51, SONYPI_EVENT_LID_CLOSED },
3498         { 0x50, SONYPI_EVENT_LID_OPENED },
3499         { 0, 0 }
3500 };
3501
3502 /* The set of possible zoom events */
3503 static struct sonypi_event sonypi_zoomev[] = {
3504         { 0x39, SONYPI_EVENT_ZOOM_PRESSED },
3505         { 0x10, SONYPI_EVENT_ZOOM_IN_PRESSED },
3506         { 0x20, SONYPI_EVENT_ZOOM_OUT_PRESSED },
3507         { 0x04, SONYPI_EVENT_ZOOM_PRESSED },
3508         { 0, 0 }
3509 };
3510
3511 /* The set of possible thumbphrase events */
3512 static struct sonypi_event sonypi_thumbphraseev[] = {
3513         { 0x3a, SONYPI_EVENT_THUMBPHRASE_PRESSED },
3514         { 0, 0 }
3515 };
3516
3517 /* The set of possible motioneye camera events */
3518 static struct sonypi_event sonypi_meyeev[] = {
3519         { 0x00, SONYPI_EVENT_MEYE_FACE },
3520         { 0x01, SONYPI_EVENT_MEYE_OPPOSITE },
3521         { 0, 0 }
3522 };
3523
3524 /* The set of possible memorystick events */
3525 static struct sonypi_event sonypi_memorystickev[] = {
3526         { 0x53, SONYPI_EVENT_MEMORYSTICK_INSERT },
3527         { 0x54, SONYPI_EVENT_MEMORYSTICK_EJECT },
3528         { 0, 0 }
3529 };
3530
3531 /* The set of possible battery events */
3532 static struct sonypi_event sonypi_batteryev[] = {
3533         { 0x20, SONYPI_EVENT_BATTERY_INSERT },
3534         { 0x30, SONYPI_EVENT_BATTERY_REMOVE },
3535         { 0, 0 }
3536 };
3537
3538 /* The set of possible volume events */
3539 static struct sonypi_event sonypi_volumeev[] = {
3540         { 0x01, SONYPI_EVENT_VOLUME_INC_PRESSED },
3541         { 0x02, SONYPI_EVENT_VOLUME_DEC_PRESSED },
3542         { 0, 0 }
3543 };
3544
3545 /* The set of possible brightness events */
3546 static struct sonypi_event sonypi_brightnessev[] = {
3547         { 0x80, SONYPI_EVENT_BRIGHTNESS_PRESSED },
3548         { 0, 0 }
3549 };
3550
3551 static struct sonypi_eventtypes type1_events[] = {
3552         { 0, 0xffffffff, sonypi_releaseev },
3553         { 0x70, SONYPI_MEYE_MASK, sonypi_meyeev },
3554         { 0x30, SONYPI_LID_MASK, sonypi_lidev },
3555         { 0x60, SONYPI_CAPTURE_MASK, sonypi_captureev },
3556         { 0x10, SONYPI_JOGGER_MASK, sonypi_joggerev },
3557         { 0x20, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
3558         { 0x30, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
3559         { 0x40, SONYPI_PKEY_MASK, sonypi_pkeyev },
3560         { 0x30, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
3561         { 0x40, SONYPI_BATTERY_MASK, sonypi_batteryev },
3562         { 0 },
3563 };
3564 static struct sonypi_eventtypes type2_events[] = {
3565         { 0, 0xffffffff, sonypi_releaseev },
3566         { 0x38, SONYPI_LID_MASK, sonypi_lidev },
3567         { 0x11, SONYPI_JOGGER_MASK, sonypi_joggerev },
3568         { 0x61, SONYPI_CAPTURE_MASK, sonypi_captureev },
3569         { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
3570         { 0x31, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
3571         { 0x08, SONYPI_PKEY_MASK, sonypi_pkeyev },
3572         { 0x11, SONYPI_BACK_MASK, sonypi_backev },
3573         { 0x21, SONYPI_HELP_MASK, sonypi_helpev },
3574         { 0x21, SONYPI_ZOOM_MASK, sonypi_zoomev },
3575         { 0x20, SONYPI_THUMBPHRASE_MASK, sonypi_thumbphraseev },
3576         { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
3577         { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
3578         { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
3579         { 0 },
3580 };
3581 static struct sonypi_eventtypes type3_events[] = {
3582         { 0, 0xffffffff, sonypi_releaseev },
3583         { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
3584         { 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
3585         { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
3586         { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
3587         { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
3588         { 0x05, SONYPI_PKEY_MASK, sonypi_pkeyev },
3589         { 0x05, SONYPI_ZOOM_MASK, sonypi_zoomev },
3590         { 0x05, SONYPI_CAPTURE_MASK, sonypi_captureev },
3591         { 0x05, SONYPI_PKEY_MASK, sonypi_volumeev },
3592         { 0x05, SONYPI_PKEY_MASK, sonypi_brightnessev },
3593         { 0 },
3594 };
3595
3596 /* low level spic calls */
3597 #define ITERATIONS_LONG         10000
3598 #define ITERATIONS_SHORT        10
3599 #define wait_on_command(command, iterations) {                          \
3600         unsigned int n = iterations;                                    \
3601         while (--n && (command))                                        \
3602                 udelay(1);                                              \
3603         if (!n)                                                         \
3604                 dprintk("command failed at %s : %s (line %d)\n",        \
3605                                 __FILE__, __func__, __LINE__);  \
3606 }
3607
3608 static u8 sony_pic_call1(u8 dev)
3609 {
3610         u8 v1, v2;
3611
3612         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
3613                         ITERATIONS_LONG);
3614         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
3615         v1 = inb_p(spic_dev.cur_ioport->io1.minimum + 4);
3616         v2 = inb_p(spic_dev.cur_ioport->io1.minimum);
3617         dprintk("sony_pic_call1(0x%.2x): 0x%.4x\n", dev, (v2 << 8) | v1);
3618         return v2;
3619 }
3620
3621 static u8 sony_pic_call2(u8 dev, u8 fn)
3622 {
3623         u8 v1;
3624
3625         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
3626                         ITERATIONS_LONG);
3627         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
3628         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
3629                         ITERATIONS_LONG);
3630         outb(fn, spic_dev.cur_ioport->io1.minimum);
3631         v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
3632         dprintk("sony_pic_call2(0x%.2x - 0x%.2x): 0x%.4x\n", dev, fn, v1);
3633         return v1;
3634 }
3635
3636 static u8 sony_pic_call3(u8 dev, u8 fn, u8 v)
3637 {
3638         u8 v1;
3639
3640         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, 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, ITERATIONS_LONG);
3643         outb(fn, spic_dev.cur_ioport->io1.minimum);
3644         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
3645         outb(v, spic_dev.cur_ioport->io1.minimum);
3646         v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
3647         dprintk("sony_pic_call3(0x%.2x - 0x%.2x - 0x%.2x): 0x%.4x\n",
3648                         dev, fn, v, v1);
3649         return v1;
3650 }
3651
3652 /*
3653  * minidrivers for SPIC models
3654  */
3655 static int type3_handle_irq(const u8 data_mask, const u8 ev)
3656 {
3657         /*
3658          * 0x31 could mean we have to take some extra action and wait for
3659          * the next irq for some Type3 models, it will generate a new
3660          * irq and we can read new data from the device:
3661          *  - 0x5c and 0x5f requires 0xA0
3662          *  - 0x61 requires 0xB3
3663          */
3664         if (data_mask == 0x31) {
3665                 if (ev == 0x5c || ev == 0x5f)
3666                         sony_pic_call1(0xA0);
3667                 else if (ev == 0x61)
3668                         sony_pic_call1(0xB3);
3669                 return 0;
3670         }
3671         return 1;
3672 }
3673
3674 static void sony_pic_detect_device_type(struct sony_pic_dev *dev)
3675 {
3676         struct pci_dev *pcidev;
3677
3678         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3679                         PCI_DEVICE_ID_INTEL_82371AB_3, NULL);
3680         if (pcidev) {
3681                 dev->model = SONYPI_DEVICE_TYPE1;
3682                 dev->evport_offset = SONYPI_TYPE1_OFFSET;
3683                 dev->event_types = type1_events;
3684                 goto out;
3685         }
3686
3687         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3688                         PCI_DEVICE_ID_INTEL_ICH6_1, NULL);
3689         if (pcidev) {
3690                 dev->model = SONYPI_DEVICE_TYPE2;
3691                 dev->evport_offset = SONYPI_TYPE2_OFFSET;
3692                 dev->event_types = type2_events;
3693                 goto out;
3694         }
3695
3696         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3697                         PCI_DEVICE_ID_INTEL_ICH7_1, NULL);
3698         if (pcidev) {
3699                 dev->model = SONYPI_DEVICE_TYPE3;
3700                 dev->handle_irq = type3_handle_irq;
3701                 dev->evport_offset = SONYPI_TYPE3_OFFSET;
3702                 dev->event_types = type3_events;
3703                 goto out;
3704         }
3705
3706         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3707                         PCI_DEVICE_ID_INTEL_ICH8_4, NULL);
3708         if (pcidev) {
3709                 dev->model = SONYPI_DEVICE_TYPE3;
3710                 dev->handle_irq = type3_handle_irq;
3711                 dev->evport_offset = SONYPI_TYPE3_OFFSET;
3712                 dev->event_types = type3_events;
3713                 goto out;
3714         }
3715
3716         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3717                         PCI_DEVICE_ID_INTEL_ICH9_1, NULL);
3718         if (pcidev) {
3719                 dev->model = SONYPI_DEVICE_TYPE3;
3720                 dev->handle_irq = type3_handle_irq;
3721                 dev->evport_offset = SONYPI_TYPE3_OFFSET;
3722                 dev->event_types = type3_events;
3723                 goto out;
3724         }
3725
3726         /* default */
3727         dev->model = SONYPI_DEVICE_TYPE2;
3728         dev->evport_offset = SONYPI_TYPE2_OFFSET;
3729         dev->event_types = type2_events;
3730
3731 out:
3732         pci_dev_put(pcidev);
3733
3734         pr_info("detected Type%d model\n",
3735                 dev->model == SONYPI_DEVICE_TYPE1 ? 1 :
3736                 dev->model == SONYPI_DEVICE_TYPE2 ? 2 : 3);
3737 }
3738
3739 /* camera tests and poweron/poweroff */
3740 #define SONYPI_CAMERA_PICTURE           5
3741 #define SONYPI_CAMERA_CONTROL           0x10
3742
3743 #define SONYPI_CAMERA_BRIGHTNESS                0
3744 #define SONYPI_CAMERA_CONTRAST                  1
3745 #define SONYPI_CAMERA_HUE                       2
3746 #define SONYPI_CAMERA_COLOR                     3
3747 #define SONYPI_CAMERA_SHARPNESS                 4
3748
3749 #define SONYPI_CAMERA_EXPOSURE_MASK             0xC
3750 #define SONYPI_CAMERA_WHITE_BALANCE_MASK        0x3
3751 #define SONYPI_CAMERA_PICTURE_MODE_MASK         0x30
3752 #define SONYPI_CAMERA_MUTE_MASK                 0x40
3753
3754 /* the rest don't need a loop until not 0xff */
3755 #define SONYPI_CAMERA_AGC                       6
3756 #define SONYPI_CAMERA_AGC_MASK                  0x30
3757 #define SONYPI_CAMERA_SHUTTER_MASK              0x7
3758
3759 #define SONYPI_CAMERA_SHUTDOWN_REQUEST          7
3760 #define SONYPI_CAMERA_CONTROL                   0x10
3761
3762 #define SONYPI_CAMERA_STATUS                    7
3763 #define SONYPI_CAMERA_STATUS_READY              0x2
3764 #define SONYPI_CAMERA_STATUS_POSITION           0x4
3765
3766 #define SONYPI_DIRECTION_BACKWARDS              0x4
3767
3768 #define SONYPI_CAMERA_REVISION                  8
3769 #define SONYPI_CAMERA_ROMVERSION                9
3770
3771 static int __sony_pic_camera_ready(void)
3772 {
3773         u8 v;
3774
3775         v = sony_pic_call2(0x8f, SONYPI_CAMERA_STATUS);
3776         return (v != 0xff && (v & SONYPI_CAMERA_STATUS_READY));
3777 }
3778
3779 static int __sony_pic_camera_off(void)
3780 {
3781         if (!camera) {
3782                 pr_warn("camera control not enabled\n");
3783                 return -ENODEV;
3784         }
3785
3786         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE,
3787                                 SONYPI_CAMERA_MUTE_MASK),
3788                         ITERATIONS_SHORT);
3789
3790         if (spic_dev.camera_power) {
3791                 sony_pic_call2(0x91, 0);
3792                 spic_dev.camera_power = 0;
3793         }
3794         return 0;
3795 }
3796
3797 static int __sony_pic_camera_on(void)
3798 {
3799         int i, j, x;
3800
3801         if (!camera) {
3802                 pr_warn("camera control not enabled\n");
3803                 return -ENODEV;
3804         }
3805
3806         if (spic_dev.camera_power)
3807                 return 0;
3808
3809         for (j = 5; j > 0; j--) {
3810
3811                 for (x = 0; x < 100 && sony_pic_call2(0x91, 0x1); x++)
3812                         msleep(10);
3813                 sony_pic_call1(0x93);
3814
3815                 for (i = 400; i > 0; i--) {
3816                         if (__sony_pic_camera_ready())
3817                                 break;
3818                         msleep(10);
3819                 }
3820                 if (i)
3821                         break;
3822         }
3823
3824         if (j == 0) {
3825                 pr_warn("failed to power on camera\n");
3826                 return -ENODEV;
3827         }
3828
3829         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTROL,
3830                                 0x5a),
3831                         ITERATIONS_SHORT);
3832
3833         spic_dev.camera_power = 1;
3834         return 0;
3835 }
3836
3837 /* External camera command (exported to the motion eye v4l driver) */
3838 int sony_pic_camera_command(int command, u8 value)
3839 {
3840         if (!camera)
3841                 return -EIO;
3842
3843         mutex_lock(&spic_dev.lock);
3844
3845         switch (command) {
3846         case SONY_PIC_COMMAND_SETCAMERA:
3847                 if (value)
3848                         __sony_pic_camera_on();
3849                 else
3850                         __sony_pic_camera_off();
3851                 break;
3852         case SONY_PIC_COMMAND_SETCAMERABRIGHTNESS:
3853                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_BRIGHTNESS, value),
3854                                 ITERATIONS_SHORT);
3855                 break;
3856         case SONY_PIC_COMMAND_SETCAMERACONTRAST:
3857                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTRAST, value),
3858                                 ITERATIONS_SHORT);
3859                 break;
3860         case SONY_PIC_COMMAND_SETCAMERAHUE:
3861                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_HUE, value),
3862                                 ITERATIONS_SHORT);
3863                 break;
3864         case SONY_PIC_COMMAND_SETCAMERACOLOR:
3865                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_COLOR, value),
3866                                 ITERATIONS_SHORT);
3867                 break;
3868         case SONY_PIC_COMMAND_SETCAMERASHARPNESS:
3869                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_SHARPNESS, value),
3870                                 ITERATIONS_SHORT);
3871                 break;
3872         case SONY_PIC_COMMAND_SETCAMERAPICTURE:
3873                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE, value),
3874                                 ITERATIONS_SHORT);
3875                 break;
3876         case SONY_PIC_COMMAND_SETCAMERAAGC:
3877                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_AGC, value),
3878                                 ITERATIONS_SHORT);
3879                 break;
3880         default:
3881                 pr_err("sony_pic_camera_command invalid: %d\n", command);
3882                 break;
3883         }
3884         mutex_unlock(&spic_dev.lock);
3885         return 0;
3886 }
3887 EXPORT_SYMBOL(sony_pic_camera_command);
3888
3889 /* gprs/edge modem (SZ460N and SZ210P), thanks to Joshua Wise */
3890 static void __sony_pic_set_wwanpower(u8 state)
3891 {
3892         state = !!state;
3893         if (spic_dev.wwan_power == state)
3894                 return;
3895         sony_pic_call2(0xB0, state);
3896         sony_pic_call1(0x82);
3897         spic_dev.wwan_power = state;
3898 }
3899
3900 static ssize_t sony_pic_wwanpower_store(struct device *dev,
3901                 struct device_attribute *attr,
3902                 const char *buffer, size_t count)
3903 {
3904         unsigned long value;
3905         if (count > 31)
3906                 return -EINVAL;
3907
3908         if (kstrtoul(buffer, 10, &value))
3909                 return -EINVAL;
3910
3911         mutex_lock(&spic_dev.lock);
3912         __sony_pic_set_wwanpower(value);
3913         mutex_unlock(&spic_dev.lock);
3914
3915         return count;
3916 }
3917
3918 static ssize_t sony_pic_wwanpower_show(struct device *dev,
3919                 struct device_attribute *attr, char *buffer)
3920 {
3921         ssize_t count;
3922         mutex_lock(&spic_dev.lock);
3923         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.wwan_power);
3924         mutex_unlock(&spic_dev.lock);
3925         return count;
3926 }
3927
3928 /* bluetooth subsystem power state */
3929 static void __sony_pic_set_bluetoothpower(u8 state)
3930 {
3931         state = !!state;
3932         if (spic_dev.bluetooth_power == state)
3933                 return;
3934         sony_pic_call2(0x96, state);
3935         sony_pic_call1(0x82);
3936         spic_dev.bluetooth_power = state;
3937 }
3938
3939 static ssize_t sony_pic_bluetoothpower_store(struct device *dev,
3940                 struct device_attribute *attr,
3941                 const char *buffer, size_t count)
3942 {
3943         unsigned long value;
3944         if (count > 31)
3945                 return -EINVAL;
3946
3947         if (kstrtoul(buffer, 10, &value))
3948                 return -EINVAL;
3949
3950         mutex_lock(&spic_dev.lock);
3951         __sony_pic_set_bluetoothpower(value);
3952         mutex_unlock(&spic_dev.lock);
3953
3954         return count;
3955 }
3956
3957 static ssize_t sony_pic_bluetoothpower_show(struct device *dev,
3958                 struct device_attribute *attr, char *buffer)
3959 {
3960         ssize_t count = 0;
3961         mutex_lock(&spic_dev.lock);
3962         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.bluetooth_power);
3963         mutex_unlock(&spic_dev.lock);
3964         return count;
3965 }
3966
3967 /* fan speed */
3968 /* FAN0 information (reverse engineered from ACPI tables) */
3969 #define SONY_PIC_FAN0_STATUS    0x93
3970 static int sony_pic_set_fanspeed(unsigned long value)
3971 {
3972         return ec_write(SONY_PIC_FAN0_STATUS, value);
3973 }
3974
3975 static int sony_pic_get_fanspeed(u8 *value)
3976 {
3977         return ec_read(SONY_PIC_FAN0_STATUS, value);
3978 }
3979
3980 static ssize_t sony_pic_fanspeed_store(struct device *dev,
3981                 struct device_attribute *attr,
3982                 const char *buffer, size_t count)
3983 {
3984         unsigned long value;
3985         if (count > 31)
3986                 return -EINVAL;
3987
3988         if (kstrtoul(buffer, 10, &value))
3989                 return -EINVAL;
3990
3991         if (sony_pic_set_fanspeed(value))
3992                 return -EIO;
3993
3994         return count;
3995 }
3996
3997 static ssize_t sony_pic_fanspeed_show(struct device *dev,
3998                 struct device_attribute *attr, char *buffer)
3999 {
4000         u8 value = 0;
4001         if (sony_pic_get_fanspeed(&value))
4002                 return -EIO;
4003
4004         return snprintf(buffer, PAGE_SIZE, "%d\n", value);
4005 }
4006
4007 #define SPIC_ATTR(_name, _mode)                                 \
4008 struct device_attribute spic_attr_##_name = __ATTR(_name,       \
4009                 _mode, sony_pic_## _name ##_show,               \
4010                 sony_pic_## _name ##_store)
4011
4012 static SPIC_ATTR(bluetoothpower, 0644);
4013 static SPIC_ATTR(wwanpower, 0644);
4014 static SPIC_ATTR(fanspeed, 0644);
4015
4016 static struct attribute *spic_attributes[] = {
4017         &spic_attr_bluetoothpower.attr,
4018         &spic_attr_wwanpower.attr,
4019         &spic_attr_fanspeed.attr,
4020         NULL
4021 };
4022
4023 static const struct attribute_group spic_attribute_group = {
4024         .attrs = spic_attributes
4025 };
4026
4027 /******** SONYPI compatibility **********/
4028 #ifdef CONFIG_SONYPI_COMPAT
4029
4030 /* battery / brightness / temperature  addresses */
4031 #define SONYPI_BAT_FLAGS        0x81
4032 #define SONYPI_LCD_LIGHT        0x96
4033 #define SONYPI_BAT1_PCTRM       0xa0
4034 #define SONYPI_BAT1_LEFT        0xa2
4035 #define SONYPI_BAT1_MAXRT       0xa4
4036 #define SONYPI_BAT2_PCTRM       0xa8
4037 #define SONYPI_BAT2_LEFT        0xaa
4038 #define SONYPI_BAT2_MAXRT       0xac
4039 #define SONYPI_BAT1_MAXTK       0xb0
4040 #define SONYPI_BAT1_FULL        0xb2
4041 #define SONYPI_BAT2_MAXTK       0xb8
4042 #define SONYPI_BAT2_FULL        0xba
4043 #define SONYPI_TEMP_STATUS      0xC1
4044
4045 struct sonypi_compat_s {
4046         struct fasync_struct    *fifo_async;
4047         struct kfifo            fifo;
4048         spinlock_t              fifo_lock;
4049         wait_queue_head_t       fifo_proc_list;
4050         atomic_t                open_count;
4051 };
4052 static struct sonypi_compat_s sonypi_compat = {
4053         .open_count = ATOMIC_INIT(0),
4054 };
4055
4056 static int sonypi_misc_fasync(int fd, struct file *filp, int on)
4057 {
4058         return fasync_helper(fd, filp, on, &sonypi_compat.fifo_async);
4059 }
4060
4061 static int sonypi_misc_release(struct inode *inode, struct file *file)
4062 {
4063         atomic_dec(&sonypi_compat.open_count);
4064         return 0;
4065 }
4066
4067 static int sonypi_misc_open(struct inode *inode, struct file *file)
4068 {
4069         /* Flush input queue on first open */
4070         unsigned long flags;
4071
4072         spin_lock_irqsave(&sonypi_compat.fifo_lock, flags);
4073
4074         if (atomic_inc_return(&sonypi_compat.open_count) == 1)
4075                 kfifo_reset(&sonypi_compat.fifo);
4076
4077         spin_unlock_irqrestore(&sonypi_compat.fifo_lock, flags);
4078
4079         return 0;
4080 }
4081
4082 static ssize_t sonypi_misc_read(struct file *file, char __user *buf,
4083                                 size_t count, loff_t *pos)
4084 {
4085         ssize_t ret;
4086         unsigned char c;
4087
4088         if ((kfifo_len(&sonypi_compat.fifo) == 0) &&
4089             (file->f_flags & O_NONBLOCK))
4090                 return -EAGAIN;
4091
4092         ret = wait_event_interruptible(sonypi_compat.fifo_proc_list,
4093                                        kfifo_len(&sonypi_compat.fifo) != 0);
4094         if (ret)
4095                 return ret;
4096
4097         while (ret < count &&
4098                (kfifo_out_locked(&sonypi_compat.fifo, &c, sizeof(c),
4099                           &sonypi_compat.fifo_lock) == sizeof(c))) {
4100                 if (put_user(c, buf++))
4101                         return -EFAULT;
4102                 ret++;
4103         }
4104
4105         if (ret > 0) {
4106                 struct inode *inode = file_inode(file);
4107                 inode->i_atime = current_time(inode);
4108         }
4109
4110         return ret;
4111 }
4112
4113 static __poll_t sonypi_misc_poll(struct file *file, poll_table *wait)
4114 {
4115         poll_wait(file, &sonypi_compat.fifo_proc_list, wait);
4116         if (kfifo_len(&sonypi_compat.fifo))
4117                 return EPOLLIN | EPOLLRDNORM;
4118         return 0;
4119 }
4120
4121 static int ec_read16(u8 addr, u16 *value)
4122 {
4123         u8 val_lb, val_hb;
4124         if (ec_read(addr, &val_lb))
4125                 return -1;
4126         if (ec_read(addr + 1, &val_hb))
4127                 return -1;
4128         *value = val_lb | (val_hb << 8);
4129         return 0;
4130 }
4131
4132 static long sonypi_misc_ioctl(struct file *fp, unsigned int cmd,
4133                                                         unsigned long arg)
4134 {
4135         int ret = 0;
4136         void __user *argp = (void __user *)arg;
4137         u8 val8;
4138         u16 val16;
4139         int value;
4140
4141         mutex_lock(&spic_dev.lock);
4142         switch (cmd) {
4143         case SONYPI_IOCGBRT:
4144                 if (sony_bl_props.dev == NULL) {
4145                         ret = -EIO;
4146                         break;
4147                 }
4148                 if (sony_nc_int_call(sony_nc_acpi_handle, "GBRT", NULL,
4149                                         &value)) {
4150                         ret = -EIO;
4151                         break;
4152                 }
4153                 val8 = ((value & 0xff) - 1) << 5;
4154                 if (copy_to_user(argp, &val8, sizeof(val8)))
4155                                 ret = -EFAULT;
4156                 break;
4157         case SONYPI_IOCSBRT:
4158                 if (sony_bl_props.dev == NULL) {
4159                         ret = -EIO;
4160                         break;
4161                 }
4162                 if (copy_from_user(&val8, argp, sizeof(val8))) {
4163                         ret = -EFAULT;
4164                         break;
4165                 }
4166                 value = (val8 >> 5) + 1;
4167                 if (sony_nc_int_call(sony_nc_acpi_handle, "SBRT", &value,
4168                                         NULL)) {
4169                         ret = -EIO;
4170                         break;
4171                 }
4172                 /* sync the backlight device status */
4173                 sony_bl_props.dev->props.brightness =
4174                     sony_backlight_get_brightness(sony_bl_props.dev);
4175                 break;
4176         case SONYPI_IOCGBAT1CAP:
4177                 if (ec_read16(SONYPI_BAT1_FULL, &val16)) {
4178                         ret = -EIO;
4179                         break;
4180                 }
4181                 if (copy_to_user(argp, &val16, sizeof(val16)))
4182                         ret = -EFAULT;
4183                 break;
4184         case SONYPI_IOCGBAT1REM:
4185                 if (ec_read16(SONYPI_BAT1_LEFT, &val16)) {
4186                         ret = -EIO;
4187                         break;
4188                 }
4189                 if (copy_to_user(argp, &val16, sizeof(val16)))
4190                         ret = -EFAULT;
4191                 break;
4192         case SONYPI_IOCGBAT2CAP:
4193                 if (ec_read16(SONYPI_BAT2_FULL, &val16)) {
4194                         ret = -EIO;
4195                         break;
4196                 }
4197                 if (copy_to_user(argp, &val16, sizeof(val16)))
4198                         ret = -EFAULT;
4199                 break;
4200         case SONYPI_IOCGBAT2REM:
4201                 if (ec_read16(SONYPI_BAT2_LEFT, &val16)) {
4202                         ret = -EIO;
4203                         break;
4204                 }
4205                 if (copy_to_user(argp, &val16, sizeof(val16)))
4206                         ret = -EFAULT;
4207                 break;
4208         case SONYPI_IOCGBATFLAGS:
4209                 if (ec_read(SONYPI_BAT_FLAGS, &val8)) {
4210                         ret = -EIO;
4211                         break;
4212                 }
4213                 val8 &= 0x07;
4214                 if (copy_to_user(argp, &val8, sizeof(val8)))
4215                         ret = -EFAULT;
4216                 break;
4217         case SONYPI_IOCGBLUE:
4218                 val8 = spic_dev.bluetooth_power;
4219                 if (copy_to_user(argp, &val8, sizeof(val8)))
4220                         ret = -EFAULT;
4221                 break;
4222         case SONYPI_IOCSBLUE:
4223                 if (copy_from_user(&val8, argp, sizeof(val8))) {
4224                         ret = -EFAULT;
4225                         break;
4226                 }
4227                 __sony_pic_set_bluetoothpower(val8);
4228                 break;
4229         /* FAN Controls */
4230         case SONYPI_IOCGFAN:
4231                 if (sony_pic_get_fanspeed(&val8)) {
4232                         ret = -EIO;
4233                         break;
4234                 }
4235                 if (copy_to_user(argp, &val8, sizeof(val8)))
4236                         ret = -EFAULT;
4237                 break;
4238         case SONYPI_IOCSFAN:
4239                 if (copy_from_user(&val8, argp, sizeof(val8))) {
4240                         ret = -EFAULT;
4241                         break;
4242                 }
4243                 if (sony_pic_set_fanspeed(val8))
4244                         ret = -EIO;
4245                 break;
4246         /* GET Temperature (useful under APM) */
4247         case SONYPI_IOCGTEMP:
4248                 if (ec_read(SONYPI_TEMP_STATUS, &val8)) {
4249                         ret = -EIO;
4250                         break;
4251                 }
4252                 if (copy_to_user(argp, &val8, sizeof(val8)))
4253                         ret = -EFAULT;
4254                 break;
4255         default:
4256                 ret = -EINVAL;
4257         }
4258         mutex_unlock(&spic_dev.lock);
4259         return ret;
4260 }
4261
4262 static const struct file_operations sonypi_misc_fops = {
4263         .owner          = THIS_MODULE,
4264         .read           = sonypi_misc_read,
4265         .poll           = sonypi_misc_poll,
4266         .open           = sonypi_misc_open,
4267         .release        = sonypi_misc_release,
4268         .fasync         = sonypi_misc_fasync,
4269         .unlocked_ioctl = sonypi_misc_ioctl,
4270         .llseek         = noop_llseek,
4271 };
4272
4273 static struct miscdevice sonypi_misc_device = {
4274         .minor          = MISC_DYNAMIC_MINOR,
4275         .name           = "sonypi",
4276         .fops           = &sonypi_misc_fops,
4277 };
4278
4279 static void sonypi_compat_report_event(u8 event)
4280 {
4281         kfifo_in_locked(&sonypi_compat.fifo, (unsigned char *)&event,
4282                         sizeof(event), &sonypi_compat.fifo_lock);
4283         kill_fasync(&sonypi_compat.fifo_async, SIGIO, POLL_IN);
4284         wake_up_interruptible(&sonypi_compat.fifo_proc_list);
4285 }
4286
4287 static int sonypi_compat_init(void)
4288 {
4289         int error;
4290
4291         spin_lock_init(&sonypi_compat.fifo_lock);
4292         error =
4293          kfifo_alloc(&sonypi_compat.fifo, SONY_LAPTOP_BUF_SIZE, GFP_KERNEL);
4294         if (error) {
4295                 pr_err("kfifo_alloc failed\n");
4296                 return error;
4297         }
4298
4299         init_waitqueue_head(&sonypi_compat.fifo_proc_list);
4300
4301         if (minor != -1)
4302                 sonypi_misc_device.minor = minor;
4303         error = misc_register(&sonypi_misc_device);
4304         if (error) {
4305                 pr_err("misc_register failed\n");
4306                 goto err_free_kfifo;
4307         }
4308         if (minor == -1)
4309                 pr_info("device allocated minor is %d\n",
4310                         sonypi_misc_device.minor);
4311
4312         return 0;
4313
4314 err_free_kfifo:
4315         kfifo_free(&sonypi_compat.fifo);
4316         return error;
4317 }
4318
4319 static void sonypi_compat_exit(void)
4320 {
4321         misc_deregister(&sonypi_misc_device);
4322         kfifo_free(&sonypi_compat.fifo);
4323 }
4324 #else
4325 static int sonypi_compat_init(void) { return 0; }
4326 static void sonypi_compat_exit(void) { }
4327 static void sonypi_compat_report_event(u8 event) { }
4328 #endif /* CONFIG_SONYPI_COMPAT */
4329
4330 /*
4331  * ACPI callbacks
4332  */
4333 static acpi_status
4334 sony_pic_read_possible_resource(struct acpi_resource *resource, void *context)
4335 {
4336         u32 i;
4337         struct sony_pic_dev *dev = (struct sony_pic_dev *)context;
4338
4339         switch (resource->type) {
4340         case ACPI_RESOURCE_TYPE_START_DEPENDENT:
4341                 {
4342                         /* start IO enumeration */
4343                         struct sony_pic_ioport *ioport = kzalloc(sizeof(*ioport), GFP_KERNEL);
4344                         if (!ioport)
4345                                 return AE_ERROR;
4346
4347                         list_add(&ioport->list, &dev->ioports);
4348                         return AE_OK;
4349                 }
4350
4351         case ACPI_RESOURCE_TYPE_END_DEPENDENT:
4352                 /* end IO enumeration */
4353                 return AE_OK;
4354
4355         case ACPI_RESOURCE_TYPE_IRQ:
4356                 {
4357                         struct acpi_resource_irq *p = &resource->data.irq;
4358                         struct sony_pic_irq *interrupt = NULL;
4359                         if (!p || !p->interrupt_count) {
4360                                 /*
4361                                  * IRQ descriptors may have no IRQ# bits set,
4362                                  * particularly those those w/ _STA disabled
4363                                  */
4364                                 dprintk("Blank IRQ resource\n");
4365                                 return AE_OK;
4366                         }
4367                         for (i = 0; i < p->interrupt_count; i++) {
4368                                 if (!p->interrupts[i]) {
4369                                         pr_warn("Invalid IRQ %d\n",
4370                                                 p->interrupts[i]);
4371                                         continue;
4372                                 }
4373                                 interrupt = kzalloc(sizeof(*interrupt),
4374                                                 GFP_KERNEL);
4375                                 if (!interrupt)
4376                                         return AE_ERROR;
4377
4378                                 list_add(&interrupt->list, &dev->interrupts);
4379                                 interrupt->irq.triggering = p->triggering;
4380                                 interrupt->irq.polarity = p->polarity;
4381                                 interrupt->irq.shareable = p->shareable;
4382                                 interrupt->irq.interrupt_count = 1;
4383                                 interrupt->irq.interrupts[0] = p->interrupts[i];
4384                         }
4385                         return AE_OK;
4386                 }
4387         case ACPI_RESOURCE_TYPE_IO:
4388                 {
4389                         struct acpi_resource_io *io = &resource->data.io;
4390                         struct sony_pic_ioport *ioport =
4391                                 list_first_entry(&dev->ioports, struct sony_pic_ioport, list);
4392                         if (!io) {
4393                                 dprintk("Blank IO resource\n");
4394                                 return AE_OK;
4395                         }
4396
4397                         if (!ioport->io1.minimum) {
4398                                 memcpy(&ioport->io1, io, sizeof(*io));
4399                                 dprintk("IO1 at 0x%.4x (0x%.2x)\n", ioport->io1.minimum,
4400                                                 ioport->io1.address_length);
4401                         }
4402                         else if (!ioport->io2.minimum) {
4403                                 memcpy(&ioport->io2, io, sizeof(*io));
4404                                 dprintk("IO2 at 0x%.4x (0x%.2x)\n", ioport->io2.minimum,
4405                                                 ioport->io2.address_length);
4406                         }
4407                         else {
4408                                 pr_err("Unknown SPIC Type, more than 2 IO Ports\n");
4409                                 return AE_ERROR;
4410                         }
4411                         return AE_OK;
4412                 }
4413
4414         case ACPI_RESOURCE_TYPE_END_TAG:
4415                 return AE_OK;
4416
4417         default:
4418                 dprintk("Resource %d isn't an IRQ nor an IO port\n",
4419                         resource->type);
4420                 return AE_CTRL_TERMINATE;
4421
4422         }
4423 }
4424
4425 static int sony_pic_possible_resources(struct acpi_device *device)
4426 {
4427         int result = 0;
4428         acpi_status status = AE_OK;
4429
4430         if (!device)
4431                 return -EINVAL;
4432
4433         /* get device status */
4434         /* see acpi_pci_link_get_current acpi_pci_link_get_possible */
4435         dprintk("Evaluating _STA\n");
4436         result = acpi_bus_get_status(device);
4437         if (result) {
4438                 pr_warn("Unable to read status\n");
4439                 goto end;
4440         }
4441
4442         if (!device->status.enabled)
4443                 dprintk("Device disabled\n");
4444         else
4445                 dprintk("Device enabled\n");
4446
4447         /*
4448          * Query and parse 'method'
4449          */
4450         dprintk("Evaluating %s\n", METHOD_NAME__PRS);
4451         status = acpi_walk_resources(device->handle, METHOD_NAME__PRS,
4452                         sony_pic_read_possible_resource, &spic_dev);
4453         if (ACPI_FAILURE(status)) {
4454                 pr_warn("Failure evaluating %s\n", METHOD_NAME__PRS);
4455                 result = -ENODEV;
4456         }
4457 end:
4458         return result;
4459 }
4460
4461 /*
4462  *  Disable the spic device by calling its _DIS method
4463  */
4464 static int sony_pic_disable(struct acpi_device *device)
4465 {
4466         acpi_status ret = acpi_evaluate_object(device->handle, "_DIS", NULL,
4467                                                NULL);
4468
4469         if (ACPI_FAILURE(ret) && ret != AE_NOT_FOUND)
4470                 return -ENXIO;
4471
4472         dprintk("Device disabled\n");
4473         return 0;
4474 }
4475
4476
4477 /*
4478  *  Based on drivers/acpi/pci_link.c:acpi_pci_link_set
4479  *
4480  *  Call _SRS to set current resources
4481  */
4482 static int sony_pic_enable(struct acpi_device *device,
4483                 struct sony_pic_ioport *ioport, struct sony_pic_irq *irq)
4484 {
4485         acpi_status status;
4486         int result = 0;
4487         /* Type 1 resource layout is:
4488          *    IO
4489          *    IO
4490          *    IRQNoFlags
4491          *    End
4492          *
4493          * Type 2 and 3 resource layout is:
4494          *    IO
4495          *    IRQNoFlags
4496          *    End
4497          */
4498         struct {
4499                 struct acpi_resource res1;
4500                 struct acpi_resource res2;
4501                 struct acpi_resource res3;
4502                 struct acpi_resource res4;
4503         } *resource;
4504         struct acpi_buffer buffer = { 0, NULL };
4505
4506         if (!ioport || !irq)
4507                 return -EINVAL;
4508
4509         /* init acpi_buffer */
4510         resource = kzalloc(sizeof(*resource) + 1, GFP_KERNEL);
4511         if (!resource)
4512                 return -ENOMEM;
4513
4514         buffer.length = sizeof(*resource) + 1;
4515         buffer.pointer = resource;
4516
4517         /* setup Type 1 resources */
4518         if (spic_dev.model == SONYPI_DEVICE_TYPE1) {
4519
4520                 /* setup io resources */
4521                 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
4522                 resource->res1.length = sizeof(struct acpi_resource);
4523                 memcpy(&resource->res1.data.io, &ioport->io1,
4524                                 sizeof(struct acpi_resource_io));
4525
4526                 resource->res2.type = ACPI_RESOURCE_TYPE_IO;
4527                 resource->res2.length = sizeof(struct acpi_resource);
4528                 memcpy(&resource->res2.data.io, &ioport->io2,
4529                                 sizeof(struct acpi_resource_io));
4530
4531                 /* setup irq resource */
4532                 resource->res3.type = ACPI_RESOURCE_TYPE_IRQ;
4533                 resource->res3.length = sizeof(struct acpi_resource);
4534                 memcpy(&resource->res3.data.irq, &irq->irq,
4535                                 sizeof(struct acpi_resource_irq));
4536                 /* we requested a shared irq */
4537                 resource->res3.data.irq.shareable = ACPI_SHARED;
4538
4539                 resource->res4.type = ACPI_RESOURCE_TYPE_END_TAG;
4540                 resource->res4.length = sizeof(struct acpi_resource);
4541         }
4542         /* setup Type 2/3 resources */
4543         else {
4544                 /* setup io resource */
4545                 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
4546                 resource->res1.length = sizeof(struct acpi_resource);
4547                 memcpy(&resource->res1.data.io, &ioport->io1,
4548                                 sizeof(struct acpi_resource_io));
4549
4550                 /* setup irq resource */
4551                 resource->res2.type = ACPI_RESOURCE_TYPE_IRQ;
4552                 resource->res2.length = sizeof(struct acpi_resource);
4553                 memcpy(&resource->res2.data.irq, &irq->irq,
4554                                 sizeof(struct acpi_resource_irq));
4555                 /* we requested a shared irq */
4556                 resource->res2.data.irq.shareable = ACPI_SHARED;
4557
4558                 resource->res3.type = ACPI_RESOURCE_TYPE_END_TAG;
4559                 resource->res3.length = sizeof(struct acpi_resource);
4560         }
4561
4562         /* Attempt to set the resource */
4563         dprintk("Evaluating _SRS\n");
4564         status = acpi_set_current_resources(device->handle, &buffer);
4565
4566         /* check for total failure */
4567         if (ACPI_FAILURE(status)) {
4568                 pr_err("Error evaluating _SRS\n");
4569                 result = -ENODEV;
4570                 goto end;
4571         }
4572
4573         /* Necessary device initializations calls (from sonypi) */
4574         sony_pic_call1(0x82);
4575         sony_pic_call2(0x81, 0xff);
4576         sony_pic_call1(compat ? 0x92 : 0x82);
4577
4578 end:
4579         kfree(resource);
4580         return result;
4581 }
4582
4583 /*****************
4584  *
4585  * ISR: some event is available
4586  *
4587  *****************/
4588 static irqreturn_t sony_pic_irq(int irq, void *dev_id)
4589 {
4590         int i, j;
4591         u8 ev = 0;
4592         u8 data_mask = 0;
4593         u8 device_event = 0;
4594
4595         struct sony_pic_dev *dev = (struct sony_pic_dev *) dev_id;
4596
4597         ev = inb_p(dev->cur_ioport->io1.minimum);
4598         if (dev->cur_ioport->io2.minimum)
4599                 data_mask = inb_p(dev->cur_ioport->io2.minimum);
4600         else
4601                 data_mask = inb_p(dev->cur_ioport->io1.minimum +
4602                                 dev->evport_offset);
4603
4604         dprintk("event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
4605                         ev, data_mask, dev->cur_ioport->io1.minimum,
4606                         dev->evport_offset);
4607
4608         if (ev == 0x00 || ev == 0xff)
4609                 return IRQ_HANDLED;
4610
4611         for (i = 0; dev->event_types[i].mask; i++) {
4612
4613                 if ((data_mask & dev->event_types[i].data) !=
4614                     dev->event_types[i].data)
4615                         continue;
4616
4617                 if (!(mask & dev->event_types[i].mask))
4618                         continue;
4619
4620                 for (j = 0; dev->event_types[i].events[j].event; j++) {
4621                         if (ev == dev->event_types[i].events[j].data) {
4622                                 device_event =
4623                                         dev->event_types[i].events[j].event;
4624                                 /* some events may require ignoring */
4625                                 if (!device_event)
4626                                         return IRQ_HANDLED;
4627                                 goto found;
4628                         }
4629                 }
4630         }
4631         /* Still not able to decode the event try to pass
4632          * it over to the minidriver
4633          */
4634         if (dev->handle_irq && dev->handle_irq(data_mask, ev) == 0)
4635                 return IRQ_HANDLED;
4636
4637         dprintk("unknown event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
4638                         ev, data_mask, dev->cur_ioport->io1.minimum,
4639                         dev->evport_offset);
4640         return IRQ_HANDLED;
4641
4642 found:
4643         sony_laptop_report_input_event(device_event);
4644         sonypi_compat_report_event(device_event);
4645         return IRQ_HANDLED;
4646 }
4647
4648 /*****************
4649  *
4650  *  ACPI driver
4651  *
4652  *****************/
4653 static int sony_pic_remove(struct acpi_device *device)
4654 {
4655         struct sony_pic_ioport *io, *tmp_io;
4656         struct sony_pic_irq *irq, *tmp_irq;
4657
4658         if (sony_pic_disable(device)) {
4659                 pr_err("Couldn't disable device\n");
4660                 return -ENXIO;
4661         }
4662
4663         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
4664         release_region(spic_dev.cur_ioport->io1.minimum,
4665                         spic_dev.cur_ioport->io1.address_length);
4666         if (spic_dev.cur_ioport->io2.minimum)
4667                 release_region(spic_dev.cur_ioport->io2.minimum,
4668                                 spic_dev.cur_ioport->io2.address_length);
4669
4670         sonypi_compat_exit();
4671
4672         sony_laptop_remove_input();
4673
4674         /* pf attrs */
4675         sysfs_remove_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
4676         sony_pf_remove();
4677
4678         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
4679                 list_del(&io->list);
4680                 kfree(io);
4681         }
4682         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
4683                 list_del(&irq->list);
4684                 kfree(irq);
4685         }
4686         spic_dev.cur_ioport = NULL;
4687         spic_dev.cur_irq = NULL;
4688
4689         dprintk(SONY_PIC_DRIVER_NAME " removed.\n");
4690         return 0;
4691 }
4692
4693 static int sony_pic_add(struct acpi_device *device)
4694 {
4695         int result;
4696         struct sony_pic_ioport *io, *tmp_io;
4697         struct sony_pic_irq *irq, *tmp_irq;
4698
4699         spic_dev.acpi_dev = device;
4700         strcpy(acpi_device_class(device), "sony/hotkey");
4701         sony_pic_detect_device_type(&spic_dev);
4702         mutex_init(&spic_dev.lock);
4703
4704         /* read _PRS resources */
4705         result = sony_pic_possible_resources(device);
4706         if (result) {
4707                 pr_err("Unable to read possible resources\n");
4708                 goto err_free_resources;
4709         }
4710
4711         /* setup input devices and helper fifo */
4712         result = sony_laptop_setup_input(device);
4713         if (result) {
4714                 pr_err("Unable to create input devices\n");
4715                 goto err_free_resources;
4716         }
4717
4718         result = sonypi_compat_init();
4719         if (result)
4720                 goto err_remove_input;
4721
4722         /* request io port */
4723         list_for_each_entry_reverse(io, &spic_dev.ioports, list) {
4724                 if (request_region(io->io1.minimum, io->io1.address_length,
4725                                         "Sony Programmable I/O Device")) {
4726                         dprintk("I/O port1: 0x%.4x (0x%.4x) + 0x%.2x\n",
4727                                         io->io1.minimum, io->io1.maximum,
4728                                         io->io1.address_length);
4729                         /* Type 1 have 2 ioports */
4730                         if (io->io2.minimum) {
4731                                 if (request_region(io->io2.minimum,
4732                                                 io->io2.address_length,
4733                                                 "Sony Programmable I/O Device")) {
4734                                         dprintk("I/O port2: 0x%.4x (0x%.4x) + 0x%.2x\n",
4735                                                         io->io2.minimum, io->io2.maximum,
4736                                                         io->io2.address_length);
4737                                         spic_dev.cur_ioport = io;
4738                                         break;
4739                                 }
4740                                 else {
4741                                         dprintk("Unable to get I/O port2: "
4742                                                         "0x%.4x (0x%.4x) + 0x%.2x\n",
4743                                                         io->io2.minimum, io->io2.maximum,
4744                                                         io->io2.address_length);
4745                                         release_region(io->io1.minimum,
4746                                                         io->io1.address_length);
4747                                 }
4748                         }
4749                         else {
4750                                 spic_dev.cur_ioport = io;
4751                                 break;
4752                         }
4753                 }
4754         }
4755         if (!spic_dev.cur_ioport) {
4756                 pr_err("Failed to request_region\n");
4757                 result = -ENODEV;
4758                 goto err_remove_compat;
4759         }
4760
4761         /* request IRQ */
4762         list_for_each_entry_reverse(irq, &spic_dev.interrupts, list) {
4763                 if (!request_irq(irq->irq.interrupts[0], sony_pic_irq,
4764                                         0, "sony-laptop", &spic_dev)) {
4765                         dprintk("IRQ: %d - triggering: %d - "
4766                                         "polarity: %d - shr: %d\n",
4767                                         irq->irq.interrupts[0],
4768                                         irq->irq.triggering,
4769                                         irq->irq.polarity,
4770                                         irq->irq.shareable);
4771                         spic_dev.cur_irq = irq;
4772                         break;
4773                 }
4774         }
4775         if (!spic_dev.cur_irq) {
4776                 pr_err("Failed to request_irq\n");
4777                 result = -ENODEV;
4778                 goto err_release_region;
4779         }
4780
4781         /* set resource status _SRS */
4782         result = sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
4783         if (result) {
4784                 pr_err("Couldn't enable device\n");
4785                 goto err_free_irq;
4786         }
4787
4788         spic_dev.bluetooth_power = -1;
4789         /* create device attributes */
4790         result = sony_pf_add();
4791         if (result)
4792                 goto err_disable_device;
4793
4794         result = sysfs_create_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
4795         if (result)
4796                 goto err_remove_pf;
4797
4798         pr_info("SPIC setup done.\n");
4799         return 0;
4800
4801 err_remove_pf:
4802         sony_pf_remove();
4803
4804 err_disable_device:
4805         sony_pic_disable(device);
4806
4807 err_free_irq:
4808         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
4809
4810 err_release_region:
4811         release_region(spic_dev.cur_ioport->io1.minimum,
4812                         spic_dev.cur_ioport->io1.address_length);
4813         if (spic_dev.cur_ioport->io2.minimum)
4814                 release_region(spic_dev.cur_ioport->io2.minimum,
4815                                 spic_dev.cur_ioport->io2.address_length);
4816
4817 err_remove_compat:
4818         sonypi_compat_exit();
4819
4820 err_remove_input:
4821         sony_laptop_remove_input();
4822
4823 err_free_resources:
4824         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
4825                 list_del(&io->list);
4826                 kfree(io);
4827         }
4828         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
4829                 list_del(&irq->list);
4830                 kfree(irq);
4831         }
4832         spic_dev.cur_ioport = NULL;
4833         spic_dev.cur_irq = NULL;
4834
4835         return result;
4836 }
4837
4838 #ifdef CONFIG_PM_SLEEP
4839 static int sony_pic_suspend(struct device *dev)
4840 {
4841         if (sony_pic_disable(to_acpi_device(dev)))
4842                 return -ENXIO;
4843         return 0;
4844 }
4845
4846 static int sony_pic_resume(struct device *dev)
4847 {
4848         sony_pic_enable(to_acpi_device(dev),
4849                         spic_dev.cur_ioport, spic_dev.cur_irq);
4850         return 0;
4851 }
4852 #endif
4853
4854 static SIMPLE_DEV_PM_OPS(sony_pic_pm, sony_pic_suspend, sony_pic_resume);
4855
4856 static const struct acpi_device_id sony_pic_device_ids[] = {
4857         {SONY_PIC_HID, 0},
4858         {"", 0},
4859 };
4860
4861 static struct acpi_driver sony_pic_driver = {
4862         .name = SONY_PIC_DRIVER_NAME,
4863         .class = SONY_PIC_CLASS,
4864         .ids = sony_pic_device_ids,
4865         .owner = THIS_MODULE,
4866         .ops = {
4867                 .add = sony_pic_add,
4868                 .remove = sony_pic_remove,
4869                 },
4870         .drv.pm = &sony_pic_pm,
4871 };
4872
4873 static const struct dmi_system_id sonypi_dmi_table[] __initconst = {
4874         {
4875                 .ident = "Sony Vaio",
4876                 .matches = {
4877                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
4878                         DMI_MATCH(DMI_PRODUCT_NAME, "PCG-"),
4879                 },
4880         },
4881         {
4882                 .ident = "Sony Vaio",
4883                 .matches = {
4884                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
4885                         DMI_MATCH(DMI_PRODUCT_NAME, "VGN-"),
4886                 },
4887         },
4888         { }
4889 };
4890
4891 static int __init sony_laptop_init(void)
4892 {
4893         int result;
4894
4895         if (!no_spic && dmi_check_system(sonypi_dmi_table)) {
4896                 result = acpi_bus_register_driver(&sony_pic_driver);
4897                 if (result) {
4898                         pr_err("Unable to register SPIC driver\n");
4899                         goto out;
4900                 }
4901                 spic_drv_registered = 1;
4902         }
4903
4904         result = acpi_bus_register_driver(&sony_nc_driver);
4905         if (result) {
4906                 pr_err("Unable to register SNC driver\n");
4907                 goto out_unregister_pic;
4908         }
4909
4910         return 0;
4911
4912 out_unregister_pic:
4913         if (spic_drv_registered)
4914                 acpi_bus_unregister_driver(&sony_pic_driver);
4915 out:
4916         return result;
4917 }
4918
4919 static void __exit sony_laptop_exit(void)
4920 {
4921         acpi_bus_unregister_driver(&sony_nc_driver);
4922         if (spic_drv_registered)
4923                 acpi_bus_unregister_driver(&sony_pic_driver);
4924 }
4925
4926 module_init(sony_laptop_init);
4927 module_exit(sony_laptop_exit);