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