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", -1);
 588         if (!sony_pf_device) {
 589                 ret = -ENOMEM;
 590                 goto out_platform_registered;
 591         }
 592
 593         ret = platform_device_add(sony_pf_device);
 594         if (ret)
 595                 goto out_platform_alloced;
 596
 597         return 0;
 598
 599       out_platform_alloced:
 600         platform_device_put(sony_pf_device);
 601         sony_pf_device = NULL;
 602       out_platform_registered:
 603         platform_driver_unregister(&sony_pf_driver);
 604       out:
 605         atomic_dec(&sony_pf_users);
 606         return ret;
 607 }
 608
 609 static void sony_pf_remove(void)
 610 {
 611         /* deregister only after the last user has gone */
 612         if (!atomic_dec_and_test(&sony_pf_users))
 613                 return;
 614
 615         platform_device_unregister(sony_pf_device);
 616         platform_driver_unregister(&sony_pf_driver);
 617 }
 618
 619 /*********** SNC (SNY5001) Device ***********/
 620
 621 /* the device uses 1-based values, while the backlight subsystem uses
 622    0-based values */
 623 #define SONY_MAX_BRIGHTNESS     8
 624
 625 #define SNC_VALIDATE_IN         0
 626 #define SNC_VALIDATE_OUT        1
 627
 628 static ssize_t sony_nc_sysfs_show(struct device *, struct device_attribute *,
 629                               char *);
 630 static ssize_t sony_nc_sysfs_store(struct device *, struct device_attribute *,
 631                                const char *, size_t);
 632 static int boolean_validate(const int, const int);
 633 static int brightness_default_validate(const int, const int);
 634
 635 struct sony_nc_value {
 636         char *name;             /* name of the entry */
 637         char **acpiget;         /* names of the ACPI get function */
 638         char **acpiset;         /* names of the ACPI set function */
 639         int (*validate)(const int, const int);  /* input/output validation */
 640         int value;              /* current setting */
 641         int valid;              /* Has ever been set */
 642         int debug;              /* active only in debug mode ? */
 643         struct device_attribute devattr;        /* sysfs attribute */
 644 };
 645
 646 #define SNC_HANDLE_NAMES(_name, _values...) \
 647         static char *snc_##_name[] = { _values, NULL }
 648
 649 #define SNC_HANDLE(_name, _getters, _setters, _validate, _debug) \
 650         { \
 651                 .name           = __stringify(_name), \
 652                 .acpiget        = _getters, \
 653                 .acpiset        = _setters, \
 654                 .validate       = _validate, \
 655                 .debug          = _debug, \
 656                 .devattr        = __ATTR(_name, 0, sony_nc_sysfs_show, sony_nc_sysfs_store), \
 657         }
 658
 659 #define SNC_HANDLE_NULL { .name = NULL }
 660
 661 SNC_HANDLE_NAMES(fnkey_get, "GHKE");
 662
 663 SNC_HANDLE_NAMES(brightness_def_get, "GPBR");
 664 SNC_HANDLE_NAMES(brightness_def_set, "SPBR");
 665
 666 SNC_HANDLE_NAMES(cdpower_get, "GCDP");
 667 SNC_HANDLE_NAMES(cdpower_set, "SCDP", "CDPW");
 668
 669 SNC_HANDLE_NAMES(audiopower_get, "GAZP");
 670 SNC_HANDLE_NAMES(audiopower_set, "AZPW");
 671
 672 SNC_HANDLE_NAMES(lanpower_get, "GLNP");
 673 SNC_HANDLE_NAMES(lanpower_set, "LNPW");
 674
 675 SNC_HANDLE_NAMES(lidstate_get, "GLID");
 676
 677 SNC_HANDLE_NAMES(indicatorlamp_get, "GILS");
 678 SNC_HANDLE_NAMES(indicatorlamp_set, "SILS");
 679
 680 SNC_HANDLE_NAMES(gainbass_get, "GMGB");
 681 SNC_HANDLE_NAMES(gainbass_set, "CMGB");
 682
 683 SNC_HANDLE_NAMES(PID_get, "GPID");
 684
 685 SNC_HANDLE_NAMES(CTR_get, "GCTR");
 686 SNC_HANDLE_NAMES(CTR_set, "SCTR");
 687
 688 SNC_HANDLE_NAMES(PCR_get, "GPCR");
 689 SNC_HANDLE_NAMES(PCR_set, "SPCR");
 690
 691 SNC_HANDLE_NAMES(CMI_get, "GCMI");
 692 SNC_HANDLE_NAMES(CMI_set, "SCMI");
 693
 694 static struct sony_nc_value sony_nc_values[] = {
 695         SNC_HANDLE(brightness_default, snc_brightness_def_get,
 696                         snc_brightness_def_set, brightness_default_validate, 0),
 697         SNC_HANDLE(fnkey, snc_fnkey_get, NULL, NULL, 0),
 698         SNC_HANDLE(cdpower, snc_cdpower_get, snc_cdpower_set, boolean_validate, 0),
 699         SNC_HANDLE(audiopower, snc_audiopower_get, snc_audiopower_set,
 700                         boolean_validate, 0),
 701         SNC_HANDLE(lanpower, snc_lanpower_get, snc_lanpower_set,
 702                         boolean_validate, 1),
 703         SNC_HANDLE(lidstate, snc_lidstate_get, NULL,
 704                         boolean_validate, 0),
 705         SNC_HANDLE(indicatorlamp, snc_indicatorlamp_get, snc_indicatorlamp_set,
 706                         boolean_validate, 0),
 707         SNC_HANDLE(gainbass, snc_gainbass_get, snc_gainbass_set,
 708                         boolean_validate, 0),
 709         /* unknown methods */
 710         SNC_HANDLE(PID, snc_PID_get, NULL, NULL, 1),
 711         SNC_HANDLE(CTR, snc_CTR_get, snc_CTR_set, NULL, 1),
 712         SNC_HANDLE(PCR, snc_PCR_get, snc_PCR_set, NULL, 1),
 713         SNC_HANDLE(CMI, snc_CMI_get, snc_CMI_set, NULL, 1),
 714         SNC_HANDLE_NULL
 715 };
 716
 717 static acpi_handle sony_nc_acpi_handle;
 718 static struct acpi_device *sony_nc_acpi_device = NULL;
 719
 720 /*
 721  * acpi_evaluate_object wrappers
 722  * all useful calls into SNC methods take one or zero parameters and return
 723  * integers or arrays.
 724  */
 725 static union acpi_object *__call_snc_method(acpi_handle handle, char *method,
 726                 u64 *value)
 727 {
 728         union acpi_object *result = NULL;
 729         struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
 730         acpi_status status;
 731
 732         if (value) {
 733                 struct acpi_object_list params;
 734                 union acpi_object in;
 735                 in.type = ACPI_TYPE_INTEGER;
 736                 in.integer.value = *value;
 737                 params.count = 1;
 738                 params.pointer = &in;
 739                 status = acpi_evaluate_object(handle, method, &params, &output);
 740                 dprintk("__call_snc_method: [%s:0x%.8x%.8x]\n", method,
 741                                 (unsigned int)(*value >> 32),
 742                                 (unsigned int)*value & 0xffffffff);
 743         } else {
 744                 status = acpi_evaluate_object(handle, method, NULL, &output);
 745                 dprintk("__call_snc_method: [%s]\n", method);
 746         }
 747
 748         if (ACPI_FAILURE(status)) {
 749                 pr_err("Failed to evaluate [%s]\n", method);
 750                 return NULL;
 751         }
 752
 753         result = (union acpi_object *) output.pointer;
 754         if (!result)
 755                 dprintk("No return object [%s]\n", method);
 756
 757         return result;
 758 }
 759
 760 #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 snprintf(buffer, PAGE_SIZE, "%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         ssize_t count = 0;
1815         count = snprintf(buffer, PAGE_SIZE, "%d\n", kbdbl_ctl->mode);
1816         return count;
1817 }
1818
1819 static int __sony_nc_kbd_backlight_timeout_set(u8 value)
1820 {
1821         int result;
1822
1823         if (value > 3)
1824                 return -EINVAL;
1825
1826         if (sony_call_snc_handle(kbdbl_ctl->handle, (value << 0x10) |
1827                                 (kbdbl_ctl->base + 0x200), &result))
1828                 return -EIO;
1829
1830         kbdbl_ctl->timeout = value;
1831
1832         return 0;
1833 }
1834
1835 static ssize_t sony_nc_kbd_backlight_timeout_store(struct device *dev,
1836                 struct device_attribute *attr,
1837                 const char *buffer, size_t count)
1838 {
1839         int ret = 0;
1840         unsigned long value;
1841
1842         if (count > 31)
1843                 return -EINVAL;
1844
1845         if (kstrtoul(buffer, 10, &value))
1846                 return -EINVAL;
1847
1848         ret = __sony_nc_kbd_backlight_timeout_set(value);
1849         if (ret < 0)
1850                 return ret;
1851
1852         return count;
1853 }
1854
1855 static ssize_t sony_nc_kbd_backlight_timeout_show(struct device *dev,
1856                 struct device_attribute *attr, char *buffer)
1857 {
1858         ssize_t count = 0;
1859         count = snprintf(buffer, PAGE_SIZE, "%d\n", kbdbl_ctl->timeout);
1860         return count;
1861 }
1862
1863 static int sony_nc_kbd_backlight_setup(struct platform_device *pd,
1864                 unsigned int handle)
1865 {
1866         int result;
1867         int probe_base = 0;
1868         int ctl_base = 0;
1869         int ret = 0;
1870
1871         if (kbdbl_ctl) {
1872                 pr_warn("handle 0x%.4x: keyboard backlight setup already done for 0x%.4x\n",
1873                                 handle, kbdbl_ctl->handle);
1874                 return -EBUSY;
1875         }
1876
1877         /* verify the kbd backlight presence, some of these handles are not used
1878          * for keyboard backlight only
1879          */
1880         switch (handle) {
1881         case 0x0153:
1882                 probe_base = 0x0;
1883                 ctl_base = 0x0;
1884                 break;
1885         case 0x0137:
1886                 probe_base = 0x0B00;
1887                 ctl_base = 0x0C00;
1888                 break;
1889         default:
1890                 probe_base = 0x0100;
1891                 ctl_base = 0x4000;
1892                 break;
1893         }
1894
1895         ret = sony_call_snc_handle(handle, probe_base, &result);
1896         if (ret)
1897                 return ret;
1898
1899         if ((handle == 0x0137 && !(result & 0x02)) ||
1900                         !(result & 0x01)) {
1901                 dprintk("no backlight keyboard found\n");
1902                 return 0;
1903         }
1904
1905         kbdbl_ctl = kzalloc(sizeof(*kbdbl_ctl), GFP_KERNEL);
1906         if (!kbdbl_ctl)
1907                 return -ENOMEM;
1908
1909         kbdbl_ctl->mode = kbd_backlight;
1910         kbdbl_ctl->timeout = kbd_backlight_timeout;
1911         kbdbl_ctl->handle = handle;
1912         kbdbl_ctl->base = ctl_base;
1913         /* Some models do not allow timeout control */
1914         kbdbl_ctl->has_timeout = handle != 0x0153;
1915
1916         sysfs_attr_init(&kbdbl_ctl->mode_attr.attr);
1917         kbdbl_ctl->mode_attr.attr.name = "kbd_backlight";
1918         kbdbl_ctl->mode_attr.attr.mode = S_IRUGO | S_IWUSR;
1919         kbdbl_ctl->mode_attr.show = sony_nc_kbd_backlight_mode_show;
1920         kbdbl_ctl->mode_attr.store = sony_nc_kbd_backlight_mode_store;
1921
1922         ret = device_create_file(&pd->dev, &kbdbl_ctl->mode_attr);
1923         if (ret)
1924                 goto outkzalloc;
1925
1926         __sony_nc_kbd_backlight_mode_set(kbdbl_ctl->mode);
1927
1928         if (kbdbl_ctl->has_timeout) {
1929                 sysfs_attr_init(&kbdbl_ctl->timeout_attr.attr);
1930                 kbdbl_ctl->timeout_attr.attr.name = "kbd_backlight_timeout";
1931                 kbdbl_ctl->timeout_attr.attr.mode = S_IRUGO | S_IWUSR;
1932                 kbdbl_ctl->timeout_attr.show =
1933                         sony_nc_kbd_backlight_timeout_show;
1934                 kbdbl_ctl->timeout_attr.store =
1935                         sony_nc_kbd_backlight_timeout_store;
1936
1937                 ret = device_create_file(&pd->dev, &kbdbl_ctl->timeout_attr);
1938                 if (ret)
1939                         goto outmode;
1940
1941                 __sony_nc_kbd_backlight_timeout_set(kbdbl_ctl->timeout);
1942         }
1943
1944
1945         return 0;
1946
1947 outmode:
1948         device_remove_file(&pd->dev, &kbdbl_ctl->mode_attr);
1949 outkzalloc:
1950         kfree(kbdbl_ctl);
1951         kbdbl_ctl = NULL;
1952         return ret;
1953 }
1954
1955 static void sony_nc_kbd_backlight_cleanup(struct platform_device *pd,
1956                 unsigned int handle)
1957 {
1958         if (kbdbl_ctl && handle == kbdbl_ctl->handle) {
1959                 device_remove_file(&pd->dev, &kbdbl_ctl->mode_attr);
1960                 if (kbdbl_ctl->has_timeout)
1961                         device_remove_file(&pd->dev, &kbdbl_ctl->timeout_attr);
1962                 kfree(kbdbl_ctl);
1963                 kbdbl_ctl = NULL;
1964         }
1965 }
1966
1967 struct battery_care_control {
1968         struct device_attribute attrs[2];
1969         unsigned int handle;
1970 };
1971 static struct battery_care_control *bcare_ctl;
1972
1973 static ssize_t sony_nc_battery_care_limit_store(struct device *dev,
1974                 struct device_attribute *attr,
1975                 const char *buffer, size_t count)
1976 {
1977         unsigned int result, cmd;
1978         unsigned long value;
1979
1980         if (count > 31)
1981                 return -EINVAL;
1982
1983         if (kstrtoul(buffer, 10, &value))
1984                 return -EINVAL;
1985
1986         /*  limit values (2 bits):
1987          *  00 - none
1988          *  01 - 80%
1989          *  10 - 50%
1990          *  11 - 100%
1991          *
1992          *  bit 0: 0 disable BCL, 1 enable BCL
1993          *  bit 1: 1 tell to store the battery limit (see bits 6,7) too
1994          *  bits 2,3: reserved
1995          *  bits 4,5: store the limit into the EC
1996          *  bits 6,7: store the limit into the battery
1997          */
1998         cmd = 0;
1999
2000         if (value > 0) {
2001                 if (value <= 50)
2002                         cmd = 0x20;
2003
2004                 else if (value <= 80)
2005                         cmd = 0x10;
2006
2007                 else if (value <= 100)
2008                         cmd = 0x30;
2009
2010                 else
2011                         return -EINVAL;
2012
2013                 /*
2014                  * handle 0x0115 should allow storing on battery too;
2015                  * handle 0x0136 same as 0x0115 + health status;
2016                  * handle 0x013f, same as 0x0136 but no storing on the battery
2017                  */
2018                 if (bcare_ctl->handle != 0x013f)
2019                         cmd = cmd | (cmd << 2);
2020
2021                 cmd = (cmd | 0x1) << 0x10;
2022         }
2023
2024         if (sony_call_snc_handle(bcare_ctl->handle, cmd | 0x0100, &result))
2025                 return -EIO;
2026
2027         return count;
2028 }
2029
2030 static ssize_t sony_nc_battery_care_limit_show(struct device *dev,
2031                 struct device_attribute *attr, char *buffer)
2032 {
2033         unsigned int result, status;
2034
2035         if (sony_call_snc_handle(bcare_ctl->handle, 0x0000, &result))
2036                 return -EIO;
2037
2038         status = (result & 0x01) ? ((result & 0x30) >> 0x04) : 0;
2039         switch (status) {
2040         case 1:
2041                 status = 80;
2042                 break;
2043         case 2:
2044                 status = 50;
2045                 break;
2046         case 3:
2047                 status = 100;
2048                 break;
2049         default:
2050                 status = 0;
2051                 break;
2052         }
2053
2054         return snprintf(buffer, PAGE_SIZE, "%d\n", status);
2055 }
2056
2057 static ssize_t sony_nc_battery_care_health_show(struct device *dev,
2058                 struct device_attribute *attr, char *buffer)
2059 {
2060         ssize_t count = 0;
2061         unsigned int health;
2062
2063         if (sony_call_snc_handle(bcare_ctl->handle, 0x0200, &health))
2064                 return -EIO;
2065
2066         count = snprintf(buffer, PAGE_SIZE, "%d\n", health & 0xff);
2067
2068         return count;
2069 }
2070
2071 static int sony_nc_battery_care_setup(struct platform_device *pd,
2072                 unsigned int handle)
2073 {
2074         int ret = 0;
2075
2076         bcare_ctl = kzalloc(sizeof(struct battery_care_control), GFP_KERNEL);
2077         if (!bcare_ctl)
2078                 return -ENOMEM;
2079
2080         bcare_ctl->handle = handle;
2081
2082         sysfs_attr_init(&bcare_ctl->attrs[0].attr);
2083         bcare_ctl->attrs[0].attr.name = "battery_care_limiter";
2084         bcare_ctl->attrs[0].attr.mode = S_IRUGO | S_IWUSR;
2085         bcare_ctl->attrs[0].show = sony_nc_battery_care_limit_show;
2086         bcare_ctl->attrs[0].store = sony_nc_battery_care_limit_store;
2087
2088         ret = device_create_file(&pd->dev, &bcare_ctl->attrs[0]);
2089         if (ret)
2090                 goto outkzalloc;
2091
2092         /* 0x0115 is for models with no health reporting capability */
2093         if (handle == 0x0115)
2094                 return 0;
2095
2096         sysfs_attr_init(&bcare_ctl->attrs[1].attr);
2097         bcare_ctl->attrs[1].attr.name = "battery_care_health";
2098         bcare_ctl->attrs[1].attr.mode = S_IRUGO;
2099         bcare_ctl->attrs[1].show = sony_nc_battery_care_health_show;
2100
2101         ret = device_create_file(&pd->dev, &bcare_ctl->attrs[1]);
2102         if (ret)
2103                 goto outlimiter;
2104
2105         return 0;
2106
2107 outlimiter:
2108         device_remove_file(&pd->dev, &bcare_ctl->attrs[0]);
2109
2110 outkzalloc:
2111         kfree(bcare_ctl);
2112         bcare_ctl = NULL;
2113
2114         return ret;
2115 }
2116
2117 static void sony_nc_battery_care_cleanup(struct platform_device *pd)
2118 {
2119         if (bcare_ctl) {
2120                 device_remove_file(&pd->dev, &bcare_ctl->attrs[0]);
2121                 if (bcare_ctl->handle != 0x0115)
2122                         device_remove_file(&pd->dev, &bcare_ctl->attrs[1]);
2123
2124                 kfree(bcare_ctl);
2125                 bcare_ctl = NULL;
2126         }
2127 }
2128
2129 struct snc_thermal_ctrl {
2130         unsigned int mode;
2131         unsigned int profiles;
2132         struct device_attribute mode_attr;
2133         struct device_attribute profiles_attr;
2134 };
2135 static struct snc_thermal_ctrl *th_handle;
2136
2137 #define THM_PROFILE_MAX 3
2138 static const char * const snc_thermal_profiles[] = {
2139         "balanced",
2140         "silent",
2141         "performance"
2142 };
2143
2144 static int sony_nc_thermal_mode_set(unsigned short mode)
2145 {
2146         unsigned int result;
2147
2148         /* the thermal profile seems to be a two bit bitmask:
2149          * lsb -> silent
2150          * msb -> performance
2151          * no bit set is the normal operation and is always valid
2152          * Some vaio models only have "balanced" and "performance"
2153          */
2154         if ((mode && !(th_handle->profiles & mode)) || mode >= THM_PROFILE_MAX)
2155                 return -EINVAL;
2156
2157         if (sony_call_snc_handle(0x0122, mode << 0x10 | 0x0200, &result))
2158                 return -EIO;
2159
2160         th_handle->mode = mode;
2161
2162         return 0;
2163 }
2164
2165 static int sony_nc_thermal_mode_get(void)
2166 {
2167         unsigned int result;
2168
2169         if (sony_call_snc_handle(0x0122, 0x0100, &result))
2170                 return -EIO;
2171
2172         return result & 0xff;
2173 }
2174
2175 static ssize_t sony_nc_thermal_profiles_show(struct device *dev,
2176                 struct device_attribute *attr, char *buffer)
2177 {
2178         short cnt;
2179         size_t idx = 0;
2180
2181         for (cnt = 0; cnt < THM_PROFILE_MAX; cnt++) {
2182                 if (!cnt || (th_handle->profiles & cnt))
2183                         idx += scnprintf(buffer + idx, PAGE_SIZE - idx, "%s ",
2184                                         snc_thermal_profiles[cnt]);
2185         }
2186         idx += scnprintf(buffer + idx, PAGE_SIZE - idx, "\n");
2187
2188         return idx;
2189 }
2190
2191 static ssize_t sony_nc_thermal_mode_store(struct device *dev,
2192                 struct device_attribute *attr,
2193                 const char *buffer, size_t count)
2194 {
2195         unsigned short cmd;
2196         size_t len = count;
2197
2198         if (count == 0)
2199                 return -EINVAL;
2200
2201         /* skip the newline if present */
2202         if (buffer[len - 1] == '\n')
2203                 len--;
2204
2205         for (cmd = 0; cmd < THM_PROFILE_MAX; cmd++)
2206                 if (strncmp(buffer, snc_thermal_profiles[cmd], len) == 0)
2207                         break;
2208
2209         if (sony_nc_thermal_mode_set(cmd))
2210                 return -EIO;
2211
2212         return count;
2213 }
2214
2215 static ssize_t sony_nc_thermal_mode_show(struct device *dev,
2216                 struct device_attribute *attr, char *buffer)
2217 {
2218         ssize_t count = 0;
2219         int mode = sony_nc_thermal_mode_get();
2220
2221         if (mode < 0)
2222                 return mode;
2223
2224         count = snprintf(buffer, PAGE_SIZE, "%s\n", snc_thermal_profiles[mode]);
2225
2226         return count;
2227 }
2228
2229 static int sony_nc_thermal_setup(struct platform_device *pd)
2230 {
2231         int ret = 0;
2232         th_handle = kzalloc(sizeof(struct snc_thermal_ctrl), GFP_KERNEL);
2233         if (!th_handle)
2234                 return -ENOMEM;
2235
2236         ret = sony_call_snc_handle(0x0122, 0x0000, &th_handle->profiles);
2237         if (ret) {
2238                 pr_warn("couldn't to read the thermal profiles\n");
2239                 goto outkzalloc;
2240         }
2241
2242         ret = sony_nc_thermal_mode_get();
2243         if (ret < 0) {
2244                 pr_warn("couldn't to read the current thermal profile");
2245                 goto outkzalloc;
2246         }
2247         th_handle->mode = ret;
2248
2249         sysfs_attr_init(&th_handle->profiles_attr.attr);
2250         th_handle->profiles_attr.attr.name = "thermal_profiles";
2251         th_handle->profiles_attr.attr.mode = S_IRUGO;
2252         th_handle->profiles_attr.show = sony_nc_thermal_profiles_show;
2253
2254         sysfs_attr_init(&th_handle->mode_attr.attr);
2255         th_handle->mode_attr.attr.name = "thermal_control";
2256         th_handle->mode_attr.attr.mode = S_IRUGO | S_IWUSR;
2257         th_handle->mode_attr.show = sony_nc_thermal_mode_show;
2258         th_handle->mode_attr.store = sony_nc_thermal_mode_store;
2259
2260         ret = device_create_file(&pd->dev, &th_handle->profiles_attr);
2261         if (ret)
2262                 goto outkzalloc;
2263
2264         ret = device_create_file(&pd->dev, &th_handle->mode_attr);
2265         if (ret)
2266                 goto outprofiles;
2267
2268         return 0;
2269
2270 outprofiles:
2271         device_remove_file(&pd->dev, &th_handle->profiles_attr);
2272 outkzalloc:
2273         kfree(th_handle);
2274         th_handle = NULL;
2275         return ret;
2276 }
2277
2278 static void sony_nc_thermal_cleanup(struct platform_device *pd)
2279 {
2280         if (th_handle) {
2281                 device_remove_file(&pd->dev, &th_handle->profiles_attr);
2282                 device_remove_file(&pd->dev, &th_handle->mode_attr);
2283                 kfree(th_handle);
2284                 th_handle = NULL;
2285         }
2286 }
2287
2288 #ifdef CONFIG_PM_SLEEP
2289 static void sony_nc_thermal_resume(void)
2290 {
2291         int status;
2292
2293         if (!th_handle)
2294                 return;
2295
2296         status = sony_nc_thermal_mode_get();
2297
2298         if (status != th_handle->mode)
2299                 sony_nc_thermal_mode_set(th_handle->mode);
2300 }
2301 #endif
2302
2303 /* resume on LID open */
2304 #define LID_RESUME_S5   0
2305 #define LID_RESUME_S4   1
2306 #define LID_RESUME_S3   2
2307 #define LID_RESUME_MAX  3
2308 struct snc_lid_resume_control {
2309         struct device_attribute attrs[LID_RESUME_MAX];
2310         unsigned int status;
2311         int handle;
2312 };
2313 static struct snc_lid_resume_control *lid_ctl;
2314
2315 static ssize_t sony_nc_lid_resume_store(struct device *dev,
2316                                         struct device_attribute *attr,
2317                                         const char *buffer, size_t count)
2318 {
2319         unsigned int result;
2320         unsigned long value;
2321         unsigned int pos = LID_RESUME_S5;
2322         if (count > 31)
2323                 return -EINVAL;
2324
2325         if (kstrtoul(buffer, 10, &value) || value > 1)
2326                 return -EINVAL;
2327
2328         /* the value we have to write to SNC is a bitmask:
2329          * +--------------+
2330          * | S3 | S4 | S5 |
2331          * +--------------+
2332          *   2    1    0
2333          */
2334         while (pos < LID_RESUME_MAX) {
2335                 if (&lid_ctl->attrs[pos].attr == &attr->attr)
2336                         break;
2337                 pos++;
2338         }
2339         if (pos == LID_RESUME_MAX)
2340                 return -EINVAL;
2341
2342         if (value)
2343                 value = lid_ctl->status | (1 << pos);
2344         else
2345                 value = lid_ctl->status & ~(1 << pos);
2346
2347         if (sony_call_snc_handle(lid_ctl->handle, value << 0x10 | 0x0100,
2348                                 &result))
2349                 return -EIO;
2350
2351         lid_ctl->status = value;
2352
2353         return count;
2354 }
2355
2356 static ssize_t sony_nc_lid_resume_show(struct device *dev,
2357                                         struct device_attribute *attr,
2358                                         char *buffer)
2359 {
2360         unsigned int pos = LID_RESUME_S5;
2361
2362         while (pos < LID_RESUME_MAX) {
2363                 if (&lid_ctl->attrs[pos].attr == &attr->attr)
2364                         return snprintf(buffer, PAGE_SIZE, "%d\n",
2365                                         (lid_ctl->status >> pos) & 0x01);
2366                 pos++;
2367         }
2368         return -EINVAL;
2369 }
2370
2371 static int sony_nc_lid_resume_setup(struct platform_device *pd,
2372                                         unsigned int handle)
2373 {
2374         unsigned int result;
2375         int i;
2376
2377         if (sony_call_snc_handle(handle, 0x0000, &result))
2378                 return -EIO;
2379
2380         lid_ctl = kzalloc(sizeof(struct snc_lid_resume_control), GFP_KERNEL);
2381         if (!lid_ctl)
2382                 return -ENOMEM;
2383
2384         lid_ctl->status = result & 0x7;
2385         lid_ctl->handle = handle;
2386
2387         sysfs_attr_init(&lid_ctl->attrs[0].attr);
2388         lid_ctl->attrs[LID_RESUME_S5].attr.name = "lid_resume_S5";
2389         lid_ctl->attrs[LID_RESUME_S5].attr.mode = S_IRUGO | S_IWUSR;
2390         lid_ctl->attrs[LID_RESUME_S5].show = sony_nc_lid_resume_show;
2391         lid_ctl->attrs[LID_RESUME_S5].store = sony_nc_lid_resume_store;
2392
2393         if (handle == 0x0119) {
2394                 sysfs_attr_init(&lid_ctl->attrs[1].attr);
2395                 lid_ctl->attrs[LID_RESUME_S4].attr.name = "lid_resume_S4";
2396                 lid_ctl->attrs[LID_RESUME_S4].attr.mode = S_IRUGO | S_IWUSR;
2397                 lid_ctl->attrs[LID_RESUME_S4].show = sony_nc_lid_resume_show;
2398                 lid_ctl->attrs[LID_RESUME_S4].store = sony_nc_lid_resume_store;
2399
2400                 sysfs_attr_init(&lid_ctl->attrs[2].attr);
2401                 lid_ctl->attrs[LID_RESUME_S3].attr.name = "lid_resume_S3";
2402                 lid_ctl->attrs[LID_RESUME_S3].attr.mode = S_IRUGO | S_IWUSR;
2403                 lid_ctl->attrs[LID_RESUME_S3].show = sony_nc_lid_resume_show;
2404                 lid_ctl->attrs[LID_RESUME_S3].store = sony_nc_lid_resume_store;
2405         }
2406         for (i = 0; i < LID_RESUME_MAX &&
2407                         lid_ctl->attrs[i].attr.name; i++) {
2408                 result = device_create_file(&pd->dev, &lid_ctl->attrs[i]);
2409                 if (result)
2410                         goto liderror;
2411         }
2412
2413         return 0;
2414
2415 liderror:
2416         for (i--; i >= 0; i--)
2417                 device_remove_file(&pd->dev, &lid_ctl->attrs[i]);
2418
2419         kfree(lid_ctl);
2420         lid_ctl = NULL;
2421
2422         return result;
2423 }
2424
2425 static void sony_nc_lid_resume_cleanup(struct platform_device *pd)
2426 {
2427         int i;
2428
2429         if (lid_ctl) {
2430                 for (i = 0; i < LID_RESUME_MAX; i++) {
2431                         if (!lid_ctl->attrs[i].attr.name)
2432                                 break;
2433
2434                         device_remove_file(&pd->dev, &lid_ctl->attrs[i]);
2435                 }
2436
2437                 kfree(lid_ctl);
2438                 lid_ctl = NULL;
2439         }
2440 }
2441
2442 /* GFX Switch position */
2443 enum gfx_switch {
2444         SPEED,
2445         STAMINA,
2446         AUTO
2447 };
2448 struct snc_gfx_switch_control {
2449         struct device_attribute attr;
2450         unsigned int handle;
2451 };
2452 static struct snc_gfx_switch_control *gfxs_ctl;
2453
2454 /* returns 0 for speed, 1 for stamina */
2455 static int __sony_nc_gfx_switch_status_get(void)
2456 {
2457         unsigned int result;
2458
2459         if (sony_call_snc_handle(gfxs_ctl->handle,
2460                                 gfxs_ctl->handle == 0x015B ? 0x0000 : 0x0100,
2461                                 &result))
2462                 return -EIO;
2463
2464         switch (gfxs_ctl->handle) {
2465         case 0x0146:
2466                 /* 1: discrete GFX (speed)
2467                  * 0: integrated GFX (stamina)
2468                  */
2469                 return result & 0x1 ? SPEED : STAMINA;
2470                 break;
2471         case 0x015B:
2472                 /* 0: discrete GFX (speed)
2473                  * 1: integrated GFX (stamina)
2474                  */
2475                 return result & 0x1 ? STAMINA : SPEED;
2476                 break;
2477         case 0x0128:
2478                 /* it's a more elaborated bitmask, for now:
2479                  * 2: integrated GFX (stamina)
2480                  * 0: discrete GFX (speed)
2481                  */
2482                 dprintk("GFX Status: 0x%x\n", result);
2483                 return result & 0x80 ? AUTO :
2484                         result & 0x02 ? STAMINA : SPEED;
2485                 break;
2486         }
2487         return -EINVAL;
2488 }
2489
2490 static ssize_t sony_nc_gfx_switch_status_show(struct device *dev,
2491                                        struct device_attribute *attr,
2492                                        char *buffer)
2493 {
2494         int pos = __sony_nc_gfx_switch_status_get();
2495
2496         if (pos < 0)
2497                 return pos;
2498
2499         return snprintf(buffer, PAGE_SIZE, "%s\n",
2500                                         pos == SPEED ? "speed" :
2501                                         pos == STAMINA ? "stamina" :
2502                                         pos == AUTO ? "auto" : "unknown");
2503 }
2504
2505 static int sony_nc_gfx_switch_setup(struct platform_device *pd,
2506                 unsigned int handle)
2507 {
2508         unsigned int result;
2509
2510         gfxs_ctl = kzalloc(sizeof(struct snc_gfx_switch_control), GFP_KERNEL);
2511         if (!gfxs_ctl)
2512                 return -ENOMEM;
2513
2514         gfxs_ctl->handle = handle;
2515
2516         sysfs_attr_init(&gfxs_ctl->attr.attr);
2517         gfxs_ctl->attr.attr.name = "gfx_switch_status";
2518         gfxs_ctl->attr.attr.mode = S_IRUGO;
2519         gfxs_ctl->attr.show = sony_nc_gfx_switch_status_show;
2520
2521         result = device_create_file(&pd->dev, &gfxs_ctl->attr);
2522         if (result)
2523                 goto gfxerror;
2524
2525         return 0;
2526
2527 gfxerror:
2528         kfree(gfxs_ctl);
2529         gfxs_ctl = NULL;
2530
2531         return result;
2532 }
2533
2534 static void sony_nc_gfx_switch_cleanup(struct platform_device *pd)
2535 {
2536         if (gfxs_ctl) {
2537                 device_remove_file(&pd->dev, &gfxs_ctl->attr);
2538
2539                 kfree(gfxs_ctl);
2540                 gfxs_ctl = NULL;
2541         }
2542 }
2543
2544 /* High speed charging function */
2545 static struct device_attribute *hsc_handle;
2546
2547 static ssize_t sony_nc_highspeed_charging_store(struct device *dev,
2548                 struct device_attribute *attr,
2549                 const char *buffer, size_t count)
2550 {
2551         unsigned int result;
2552         unsigned long value;
2553
2554         if (count > 31)
2555                 return -EINVAL;
2556
2557         if (kstrtoul(buffer, 10, &value) || value > 1)
2558                 return -EINVAL;
2559
2560         if (sony_call_snc_handle(0x0131, value << 0x10 | 0x0200, &result))
2561                 return -EIO;
2562
2563         return count;
2564 }
2565
2566 static ssize_t sony_nc_highspeed_charging_show(struct device *dev,
2567                 struct device_attribute *attr, char *buffer)
2568 {
2569         unsigned int result;
2570
2571         if (sony_call_snc_handle(0x0131, 0x0100, &result))
2572                 return -EIO;
2573
2574         return snprintf(buffer, PAGE_SIZE, "%d\n", result & 0x01);
2575 }
2576
2577 static int sony_nc_highspeed_charging_setup(struct platform_device *pd)
2578 {
2579         unsigned int result;
2580
2581         if (sony_call_snc_handle(0x0131, 0x0000, &result) || !(result & 0x01)) {
2582                 /* some models advertise the handle but have no implementation
2583                  * for it
2584                  */
2585                 pr_info("No High Speed Charging capability found\n");
2586                 return 0;
2587         }
2588
2589         hsc_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2590         if (!hsc_handle)
2591                 return -ENOMEM;
2592
2593         sysfs_attr_init(&hsc_handle->attr);
2594         hsc_handle->attr.name = "battery_highspeed_charging";
2595         hsc_handle->attr.mode = S_IRUGO | S_IWUSR;
2596         hsc_handle->show = sony_nc_highspeed_charging_show;
2597         hsc_handle->store = sony_nc_highspeed_charging_store;
2598
2599         result = device_create_file(&pd->dev, hsc_handle);
2600         if (result) {
2601                 kfree(hsc_handle);
2602                 hsc_handle = NULL;
2603                 return result;
2604         }
2605
2606         return 0;
2607 }
2608
2609 static void sony_nc_highspeed_charging_cleanup(struct platform_device *pd)
2610 {
2611         if (hsc_handle) {
2612                 device_remove_file(&pd->dev, hsc_handle);
2613                 kfree(hsc_handle);
2614                 hsc_handle = NULL;
2615         }
2616 }
2617
2618 /* low battery function */
2619 static struct device_attribute *lowbatt_handle;
2620
2621 static ssize_t sony_nc_lowbatt_store(struct device *dev,
2622                 struct device_attribute *attr,
2623                 const char *buffer, size_t count)
2624 {
2625         unsigned int result;
2626         unsigned long value;
2627
2628         if (count > 31)
2629                 return -EINVAL;
2630
2631         if (kstrtoul(buffer, 10, &value) || value > 1)
2632                 return -EINVAL;
2633
2634         if (sony_call_snc_handle(0x0121, value << 8, &result))
2635                 return -EIO;
2636
2637         return count;
2638 }
2639
2640 static ssize_t sony_nc_lowbatt_show(struct device *dev,
2641                 struct device_attribute *attr, char *buffer)
2642 {
2643         unsigned int result;
2644
2645         if (sony_call_snc_handle(0x0121, 0x0200, &result))
2646                 return -EIO;
2647
2648         return snprintf(buffer, PAGE_SIZE, "%d\n", result & 1);
2649 }
2650
2651 static int sony_nc_lowbatt_setup(struct platform_device *pd)
2652 {
2653         unsigned int result;
2654
2655         lowbatt_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2656         if (!lowbatt_handle)
2657                 return -ENOMEM;
2658
2659         sysfs_attr_init(&lowbatt_handle->attr);
2660         lowbatt_handle->attr.name = "lowbatt_hibernate";
2661         lowbatt_handle->attr.mode = S_IRUGO | S_IWUSR;
2662         lowbatt_handle->show = sony_nc_lowbatt_show;
2663         lowbatt_handle->store = sony_nc_lowbatt_store;
2664
2665         result = device_create_file(&pd->dev, lowbatt_handle);
2666         if (result) {
2667                 kfree(lowbatt_handle);
2668                 lowbatt_handle = NULL;
2669                 return result;
2670         }
2671
2672         return 0;
2673 }
2674
2675 static void sony_nc_lowbatt_cleanup(struct platform_device *pd)
2676 {
2677         if (lowbatt_handle) {
2678                 device_remove_file(&pd->dev, lowbatt_handle);
2679                 kfree(lowbatt_handle);
2680                 lowbatt_handle = NULL;
2681         }
2682 }
2683
2684 /* fan speed function */
2685 static struct device_attribute *fan_handle, *hsf_handle;
2686
2687 static ssize_t sony_nc_hsfan_store(struct device *dev,
2688                 struct device_attribute *attr,
2689                 const char *buffer, size_t count)
2690 {
2691         unsigned int result;
2692         unsigned long value;
2693
2694         if (count > 31)
2695                 return -EINVAL;
2696
2697         if (kstrtoul(buffer, 10, &value) || value > 1)
2698                 return -EINVAL;
2699
2700         if (sony_call_snc_handle(0x0149, value << 0x10 | 0x0200, &result))
2701                 return -EIO;
2702
2703         return count;
2704 }
2705
2706 static ssize_t sony_nc_hsfan_show(struct device *dev,
2707                 struct device_attribute *attr, char *buffer)
2708 {
2709         unsigned int result;
2710
2711         if (sony_call_snc_handle(0x0149, 0x0100, &result))
2712                 return -EIO;
2713
2714         return snprintf(buffer, PAGE_SIZE, "%d\n", result & 0x01);
2715 }
2716
2717 static ssize_t sony_nc_fanspeed_show(struct device *dev,
2718                 struct device_attribute *attr, char *buffer)
2719 {
2720         unsigned int result;
2721
2722         if (sony_call_snc_handle(0x0149, 0x0300, &result))
2723                 return -EIO;
2724
2725         return snprintf(buffer, PAGE_SIZE, "%d\n", result & 0xff);
2726 }
2727
2728 static int sony_nc_fanspeed_setup(struct platform_device *pd)
2729 {
2730         unsigned int result;
2731
2732         fan_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2733         if (!fan_handle)
2734                 return -ENOMEM;
2735
2736         hsf_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2737         if (!hsf_handle) {
2738                 result = -ENOMEM;
2739                 goto out_hsf_handle_alloc;
2740         }
2741
2742         sysfs_attr_init(&fan_handle->attr);
2743         fan_handle->attr.name = "fanspeed";
2744         fan_handle->attr.mode = S_IRUGO;
2745         fan_handle->show = sony_nc_fanspeed_show;
2746         fan_handle->store = NULL;
2747
2748         sysfs_attr_init(&hsf_handle->attr);
2749         hsf_handle->attr.name = "fan_forced";
2750         hsf_handle->attr.mode = S_IRUGO | S_IWUSR;
2751         hsf_handle->show = sony_nc_hsfan_show;
2752         hsf_handle->store = sony_nc_hsfan_store;
2753
2754         result = device_create_file(&pd->dev, fan_handle);
2755         if (result)
2756                 goto out_fan_handle;
2757
2758         result = device_create_file(&pd->dev, hsf_handle);
2759         if (result)
2760                 goto out_hsf_handle;
2761
2762         return 0;
2763
2764 out_hsf_handle:
2765         device_remove_file(&pd->dev, fan_handle);
2766
2767 out_fan_handle:
2768         kfree(hsf_handle);
2769         hsf_handle = NULL;
2770
2771 out_hsf_handle_alloc:
2772         kfree(fan_handle);
2773         fan_handle = NULL;
2774         return result;
2775 }
2776
2777 static void sony_nc_fanspeed_cleanup(struct platform_device *pd)
2778 {
2779         if (fan_handle) {
2780                 device_remove_file(&pd->dev, fan_handle);
2781                 kfree(fan_handle);
2782                 fan_handle = NULL;
2783         }
2784         if (hsf_handle) {
2785                 device_remove_file(&pd->dev, hsf_handle);
2786                 kfree(hsf_handle);
2787                 hsf_handle = NULL;
2788         }
2789 }
2790
2791 /* USB charge function */
2792 static struct device_attribute *uc_handle;
2793
2794 static ssize_t sony_nc_usb_charge_store(struct device *dev,
2795                 struct device_attribute *attr,
2796                 const char *buffer, size_t count)
2797 {
2798         unsigned int result;
2799         unsigned long value;
2800
2801         if (count > 31)
2802                 return -EINVAL;
2803
2804         if (kstrtoul(buffer, 10, &value) || value > 1)
2805                 return -EINVAL;
2806
2807         if (sony_call_snc_handle(0x0155, value << 0x10 | 0x0100, &result))
2808                 return -EIO;
2809
2810         return count;
2811 }
2812
2813 static ssize_t sony_nc_usb_charge_show(struct device *dev,
2814                 struct device_attribute *attr, char *buffer)
2815 {
2816         unsigned int result;
2817
2818         if (sony_call_snc_handle(0x0155, 0x0000, &result))
2819                 return -EIO;
2820
2821         return snprintf(buffer, PAGE_SIZE, "%d\n", result & 0x01);
2822 }
2823
2824 static int sony_nc_usb_charge_setup(struct platform_device *pd)
2825 {
2826         unsigned int result;
2827
2828         if (sony_call_snc_handle(0x0155, 0x0000, &result) || !(result & 0x01)) {
2829                 /* some models advertise the handle but have no implementation
2830                  * for it
2831                  */
2832                 pr_info("No USB Charge capability found\n");
2833                 return 0;
2834         }
2835
2836         uc_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2837         if (!uc_handle)
2838                 return -ENOMEM;
2839
2840         sysfs_attr_init(&uc_handle->attr);
2841         uc_handle->attr.name = "usb_charge";
2842         uc_handle->attr.mode = S_IRUGO | S_IWUSR;
2843         uc_handle->show = sony_nc_usb_charge_show;
2844         uc_handle->store = sony_nc_usb_charge_store;
2845
2846         result = device_create_file(&pd->dev, uc_handle);
2847         if (result) {
2848                 kfree(uc_handle);
2849                 uc_handle = NULL;
2850                 return result;
2851         }
2852
2853         return 0;
2854 }
2855
2856 static void sony_nc_usb_charge_cleanup(struct platform_device *pd)
2857 {
2858         if (uc_handle) {
2859                 device_remove_file(&pd->dev, uc_handle);
2860                 kfree(uc_handle);
2861                 uc_handle = NULL;
2862         }
2863 }
2864
2865 /* Panel ID function */
2866 static struct device_attribute *panel_handle;
2867
2868 static ssize_t sony_nc_panelid_show(struct device *dev,
2869                 struct device_attribute *attr, char *buffer)
2870 {
2871         unsigned int result;
2872
2873         if (sony_call_snc_handle(0x011D, 0x0000, &result))
2874                 return -EIO;
2875
2876         return snprintf(buffer, PAGE_SIZE, "%d\n", result);
2877 }
2878
2879 static int sony_nc_panelid_setup(struct platform_device *pd)
2880 {
2881         unsigned int result;
2882
2883         panel_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2884         if (!panel_handle)
2885                 return -ENOMEM;
2886
2887         sysfs_attr_init(&panel_handle->attr);
2888         panel_handle->attr.name = "panel_id";
2889         panel_handle->attr.mode = S_IRUGO;
2890         panel_handle->show = sony_nc_panelid_show;
2891         panel_handle->store = NULL;
2892
2893         result = device_create_file(&pd->dev, panel_handle);
2894         if (result) {
2895                 kfree(panel_handle);
2896                 panel_handle = NULL;
2897                 return result;
2898         }
2899
2900         return 0;
2901 }
2902
2903 static void sony_nc_panelid_cleanup(struct platform_device *pd)
2904 {
2905         if (panel_handle) {
2906                 device_remove_file(&pd->dev, panel_handle);
2907                 kfree(panel_handle);
2908                 panel_handle = NULL;
2909         }
2910 }
2911
2912 /* smart connect function */
2913 static struct device_attribute *sc_handle;
2914
2915 static ssize_t sony_nc_smart_conn_store(struct device *dev,
2916                 struct device_attribute *attr,
2917                 const char *buffer, size_t count)
2918 {
2919         unsigned int result;
2920         unsigned long value;
2921
2922         if (count > 31)
2923                 return -EINVAL;
2924
2925         if (kstrtoul(buffer, 10, &value) || value > 1)
2926                 return -EINVAL;
2927
2928         if (sony_call_snc_handle(0x0168, value << 0x10, &result))
2929                 return -EIO;
2930
2931         return count;
2932 }
2933
2934 static int sony_nc_smart_conn_setup(struct platform_device *pd)
2935 {
2936         unsigned int result;
2937
2938         sc_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2939         if (!sc_handle)
2940                 return -ENOMEM;
2941
2942         sysfs_attr_init(&sc_handle->attr);
2943         sc_handle->attr.name = "smart_connect";
2944         sc_handle->attr.mode = S_IWUSR;
2945         sc_handle->show = NULL;
2946         sc_handle->store = sony_nc_smart_conn_store;
2947
2948         result = device_create_file(&pd->dev, sc_handle);
2949         if (result) {
2950                 kfree(sc_handle);
2951                 sc_handle = NULL;
2952                 return result;
2953         }
2954
2955         return 0;
2956 }
2957
2958 static void sony_nc_smart_conn_cleanup(struct platform_device *pd)
2959 {
2960         if (sc_handle) {
2961                 device_remove_file(&pd->dev, sc_handle);
2962                 kfree(sc_handle);
2963                 sc_handle = NULL;
2964         }
2965 }
2966
2967 /* Touchpad enable/disable */
2968 struct touchpad_control {
2969         struct device_attribute attr;
2970         int handle;
2971 };
2972 static struct touchpad_control *tp_ctl;
2973
2974 static ssize_t sony_nc_touchpad_store(struct device *dev,
2975                 struct device_attribute *attr, const char *buffer, size_t count)
2976 {
2977         unsigned int result;
2978         unsigned long value;
2979
2980         if (count > 31)
2981                 return -EINVAL;
2982
2983         if (kstrtoul(buffer, 10, &value) || value > 1)
2984                 return -EINVAL;
2985
2986         /* sysfs: 0 disabled, 1 enabled
2987          * EC: 0 enabled, 1 disabled
2988          */
2989         if (sony_call_snc_handle(tp_ctl->handle,
2990                                 (!value << 0x10) | 0x100, &result))
2991                 return -EIO;
2992
2993         return count;
2994 }
2995
2996 static ssize_t sony_nc_touchpad_show(struct device *dev,
2997                 struct device_attribute *attr, char *buffer)
2998 {
2999         unsigned int result;
3000
3001         if (sony_call_snc_handle(tp_ctl->handle, 0x000, &result))
3002                 return -EINVAL;
3003
3004         return snprintf(buffer, PAGE_SIZE, "%d\n", !(result & 0x01));
3005 }
3006
3007 static int sony_nc_touchpad_setup(struct platform_device *pd,
3008                 unsigned int handle)
3009 {
3010         int ret = 0;
3011
3012         tp_ctl = kzalloc(sizeof(struct touchpad_control), GFP_KERNEL);
3013         if (!tp_ctl)
3014                 return -ENOMEM;
3015
3016         tp_ctl->handle = handle;
3017
3018         sysfs_attr_init(&tp_ctl->attr.attr);
3019         tp_ctl->attr.attr.name = "touchpad";
3020         tp_ctl->attr.attr.mode = S_IRUGO | S_IWUSR;
3021         tp_ctl->attr.show = sony_nc_touchpad_show;
3022         tp_ctl->attr.store = sony_nc_touchpad_store;
3023
3024         ret = device_create_file(&pd->dev, &tp_ctl->attr);
3025         if (ret) {
3026                 kfree(tp_ctl);
3027                 tp_ctl = NULL;
3028         }
3029
3030         return ret;
3031 }
3032
3033 static void sony_nc_touchpad_cleanup(struct platform_device *pd)
3034 {
3035         if (tp_ctl) {
3036                 device_remove_file(&pd->dev, &tp_ctl->attr);
3037                 kfree(tp_ctl);
3038                 tp_ctl = NULL;
3039         }
3040 }
3041
3042 static void sony_nc_backlight_ng_read_limits(int handle,
3043                 struct sony_backlight_props *props)
3044 {
3045         u64 offset;
3046         int i;
3047         int lvl_table_len = 0;
3048         u8 min = 0xff, max = 0x00;
3049         unsigned char buffer[32] = { 0 };
3050
3051         props->handle = handle;
3052         props->offset = 0;
3053         props->maxlvl = 0xff;
3054
3055         offset = sony_find_snc_handle(handle);
3056
3057         /* try to read the boundaries from ACPI tables, if we fail the above
3058          * defaults should be reasonable
3059          */
3060         i = sony_nc_buffer_call(sony_nc_acpi_handle, "SN06", &offset, buffer,
3061                         32);
3062         if (i < 0)
3063                 return;
3064
3065         switch (handle) {
3066         case 0x012f:
3067         case 0x0137:
3068                 lvl_table_len = 9;
3069                 break;
3070         case 0x143:
3071         case 0x14b:
3072         case 0x14c:
3073                 lvl_table_len = 16;
3074                 break;
3075         }
3076
3077         /* the buffer lists brightness levels available, brightness levels are
3078          * from position 0 to 8 in the array, other values are used by ALS
3079          * control.
3080          */
3081         for (i = 0; i < lvl_table_len && i < ARRAY_SIZE(buffer); i++) {
3082
3083                 dprintk("Brightness level: %d\n", buffer[i]);
3084
3085                 if (!buffer[i])
3086                         break;
3087
3088                 if (buffer[i] > max)
3089                         max = buffer[i];
3090                 if (buffer[i] < min)
3091                         min = buffer[i];
3092         }
3093         props->offset = min;
3094         props->maxlvl = max;
3095         dprintk("Brightness levels: min=%d max=%d\n", props->offset,
3096                         props->maxlvl);
3097 }
3098
3099 static void sony_nc_backlight_setup(void)
3100 {
3101         int max_brightness = 0;
3102         const struct backlight_ops *ops = NULL;
3103         struct backlight_properties props;
3104
3105         if (sony_find_snc_handle(0x12f) >= 0) {
3106                 ops = &sony_backlight_ng_ops;
3107                 sony_bl_props.cmd_base = 0x0100;
3108                 sony_nc_backlight_ng_read_limits(0x12f, &sony_bl_props);
3109                 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
3110
3111         } else if (sony_find_snc_handle(0x137) >= 0) {
3112                 ops = &sony_backlight_ng_ops;
3113                 sony_bl_props.cmd_base = 0x0100;
3114                 sony_nc_backlight_ng_read_limits(0x137, &sony_bl_props);
3115                 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
3116
3117         } else if (sony_find_snc_handle(0x143) >= 0) {
3118                 ops = &sony_backlight_ng_ops;
3119                 sony_bl_props.cmd_base = 0x3000;
3120                 sony_nc_backlight_ng_read_limits(0x143, &sony_bl_props);
3121                 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
3122
3123         } else if (sony_find_snc_handle(0x14b) >= 0) {
3124                 ops = &sony_backlight_ng_ops;
3125                 sony_bl_props.cmd_base = 0x3000;
3126                 sony_nc_backlight_ng_read_limits(0x14b, &sony_bl_props);
3127                 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
3128
3129         } else if (sony_find_snc_handle(0x14c) >= 0) {
3130                 ops = &sony_backlight_ng_ops;
3131                 sony_bl_props.cmd_base = 0x3000;
3132                 sony_nc_backlight_ng_read_limits(0x14c, &sony_bl_props);
3133                 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
3134
3135         } else if (acpi_has_method(sony_nc_acpi_handle, "GBRT")) {
3136                 ops = &sony_backlight_ops;
3137                 max_brightness = SONY_MAX_BRIGHTNESS - 1;
3138
3139         } else
3140                 return;
3141
3142         memset(&props, 0, sizeof(struct backlight_properties));
3143         props.type = BACKLIGHT_PLATFORM;
3144         props.max_brightness = max_brightness;
3145         sony_bl_props.dev = backlight_device_register("sony", NULL,
3146                                                       &sony_bl_props,
3147                                                       ops, &props);
3148
3149         if (IS_ERR(sony_bl_props.dev)) {
3150                 pr_warn("unable to register backlight device\n");
3151                 sony_bl_props.dev = NULL;
3152         } else
3153                 sony_bl_props.dev->props.brightness =
3154                         ops->get_brightness(sony_bl_props.dev);
3155 }
3156
3157 static void sony_nc_backlight_cleanup(void)
3158 {
3159         backlight_device_unregister(sony_bl_props.dev);
3160 }
3161
3162 static int sony_nc_add(struct acpi_device *device)
3163 {
3164         acpi_status status;
3165         int result = 0;
3166         struct sony_nc_value *item;
3167
3168         sony_nc_acpi_device = device;
3169         strcpy(acpi_device_class(device), "sony/hotkey");
3170
3171         sony_nc_acpi_handle = device->handle;
3172
3173         /* read device status */
3174         result = acpi_bus_get_status(device);
3175         /* bail IFF the above call was successful and the device is not present */
3176         if (!result && !device->status.present) {
3177                 dprintk("Device not present\n");
3178                 result = -ENODEV;
3179                 goto outwalk;
3180         }
3181
3182         result = sony_pf_add();
3183         if (result)
3184                 goto outpresent;
3185
3186         if (debug) {
3187                 status = acpi_walk_namespace(ACPI_TYPE_METHOD,
3188                                 sony_nc_acpi_handle, 1, sony_walk_callback,
3189                                 NULL, NULL, NULL);
3190                 if (ACPI_FAILURE(status)) {
3191                         pr_warn("unable to walk acpi resources\n");
3192                         result = -ENODEV;
3193                         goto outpresent;
3194                 }
3195         }
3196
3197         result = sony_laptop_setup_input(device);
3198         if (result) {
3199                 pr_err("Unable to create input devices\n");
3200                 goto outplatform;
3201         }
3202
3203         if (acpi_has_method(sony_nc_acpi_handle, "ECON")) {
3204                 int arg = 1;
3205                 if (sony_nc_int_call(sony_nc_acpi_handle, "ECON", &arg, NULL))
3206                         dprintk("ECON Method failed\n");
3207         }
3208
3209         if (acpi_has_method(sony_nc_acpi_handle, "SN00")) {
3210                 dprintk("Doing SNC setup\n");
3211                 /* retrieve the available handles */
3212                 result = sony_nc_handles_setup(sony_pf_device);
3213                 if (!result)
3214                         sony_nc_function_setup(device, sony_pf_device);
3215         }
3216
3217         if (acpi_video_get_backlight_type() == acpi_backlight_vendor)
3218                 sony_nc_backlight_setup();
3219
3220         /* create sony_pf sysfs attributes related to the SNC device */
3221         for (item = sony_nc_values; item->name; ++item) {
3222
3223                 if (!debug && item->debug)
3224                         continue;
3225
3226                 /* find the available acpiget as described in the DSDT */
3227                 for (; item->acpiget && *item->acpiget; ++item->acpiget) {
3228                         if (acpi_has_method(sony_nc_acpi_handle,
3229                                                         *item->acpiget)) {
3230                                 dprintk("Found %s getter: %s\n",
3231                                                 item->name, *item->acpiget);
3232                                 item->devattr.attr.mode |= S_IRUGO;
3233                                 break;
3234                         }
3235                 }
3236
3237                 /* find the available acpiset as described in the DSDT */
3238                 for (; item->acpiset && *item->acpiset; ++item->acpiset) {
3239                         if (acpi_has_method(sony_nc_acpi_handle,
3240                                                         *item->acpiset)) {
3241                                 dprintk("Found %s setter: %s\n",
3242                                                 item->name, *item->acpiset);
3243                                 item->devattr.attr.mode |= S_IWUSR;
3244                                 break;
3245                         }
3246                 }
3247
3248                 if (item->devattr.attr.mode != 0) {
3249                         result =
3250                             device_create_file(&sony_pf_device->dev,
3251                                                &item->devattr);
3252                         if (result)
3253                                 goto out_sysfs;
3254                 }
3255         }
3256
3257         pr_info("SNC setup done.\n");
3258         return 0;
3259
3260 out_sysfs:
3261         for (item = sony_nc_values; item->name; ++item) {
3262                 device_remove_file(&sony_pf_device->dev, &item->devattr);
3263         }
3264         sony_nc_backlight_cleanup();
3265         sony_nc_function_cleanup(sony_pf_device);
3266         sony_nc_handles_cleanup(sony_pf_device);
3267
3268 outplatform:
3269         sony_laptop_remove_input();
3270
3271 outpresent:
3272         sony_pf_remove();
3273
3274 outwalk:
3275         sony_nc_rfkill_cleanup();
3276         return result;
3277 }
3278
3279 static int sony_nc_remove(struct acpi_device *device)
3280 {
3281         struct sony_nc_value *item;
3282
3283         sony_nc_backlight_cleanup();
3284
3285         sony_nc_acpi_device = NULL;
3286
3287         for (item = sony_nc_values; item->name; ++item) {
3288                 device_remove_file(&sony_pf_device->dev, &item->devattr);
3289         }
3290
3291         sony_nc_function_cleanup(sony_pf_device);
3292         sony_nc_handles_cleanup(sony_pf_device);
3293         sony_pf_remove();
3294         sony_laptop_remove_input();
3295         dprintk(SONY_NC_DRIVER_NAME " removed.\n");
3296
3297         return 0;
3298 }
3299
3300 static const struct acpi_device_id sony_device_ids[] = {
3301         {SONY_NC_HID, 0},
3302         {SONY_PIC_HID, 0},
3303         {"", 0},
3304 };
3305 MODULE_DEVICE_TABLE(acpi, sony_device_ids);
3306
3307 static const struct acpi_device_id sony_nc_device_ids[] = {
3308         {SONY_NC_HID, 0},
3309         {"", 0},
3310 };
3311
3312 static struct acpi_driver sony_nc_driver = {
3313         .name = SONY_NC_DRIVER_NAME,
3314         .class = SONY_NC_CLASS,
3315         .ids = sony_nc_device_ids,
3316         .owner = THIS_MODULE,
3317         .ops = {
3318                 .add = sony_nc_add,
3319                 .remove = sony_nc_remove,
3320                 .notify = sony_nc_notify,
3321                 },
3322         .drv.pm = &sony_nc_pm,
3323 };
3324
3325 /*********** SPIC (SNY6001) Device ***********/
3326
3327 #define SONYPI_DEVICE_TYPE1     0x00000001
3328 #define SONYPI_DEVICE_TYPE2     0x00000002
3329 #define SONYPI_DEVICE_TYPE3     0x00000004
3330
3331 #define SONYPI_TYPE1_OFFSET     0x04
3332 #define SONYPI_TYPE2_OFFSET     0x12
3333 #define SONYPI_TYPE3_OFFSET     0x12
3334
3335 struct sony_pic_ioport {
3336         struct acpi_resource_io io1;
3337         struct acpi_resource_io io2;
3338         struct list_head        list;
3339 };
3340
3341 struct sony_pic_irq {
3342         struct acpi_resource_irq        irq;
3343         struct list_head                list;
3344 };
3345
3346 struct sonypi_eventtypes {
3347         u8                      data;
3348         unsigned long           mask;
3349         struct sonypi_event     *events;
3350 };
3351
3352 struct sony_pic_dev {
3353         struct acpi_device              *acpi_dev;
3354         struct sony_pic_irq             *cur_irq;
3355         struct sony_pic_ioport          *cur_ioport;
3356         struct list_head                interrupts;
3357         struct list_head                ioports;
3358         struct mutex                    lock;
3359         struct sonypi_eventtypes        *event_types;
3360         int                             (*handle_irq)(const u8, const u8);
3361         int                             model;
3362         u16                             evport_offset;
3363         u8                              camera_power;
3364         u8                              bluetooth_power;
3365         u8                              wwan_power;
3366 };
3367
3368 static struct sony_pic_dev spic_dev = {
3369         .interrupts     = LIST_HEAD_INIT(spic_dev.interrupts),
3370         .ioports        = LIST_HEAD_INIT(spic_dev.ioports),
3371 };
3372
3373 static int spic_drv_registered;
3374
3375 /* Event masks */
3376 #define SONYPI_JOGGER_MASK                      0x00000001
3377 #define SONYPI_CAPTURE_MASK                     0x00000002
3378 #define SONYPI_FNKEY_MASK                       0x00000004
3379 #define SONYPI_BLUETOOTH_MASK                   0x00000008
3380 #define SONYPI_PKEY_MASK                        0x00000010
3381 #define SONYPI_BACK_MASK                        0x00000020
3382 #define SONYPI_HELP_MASK                        0x00000040
3383 #define SONYPI_LID_MASK                         0x00000080
3384 #define SONYPI_ZOOM_MASK                        0x00000100
3385 #define SONYPI_THUMBPHRASE_MASK                 0x00000200
3386 #define SONYPI_MEYE_MASK                        0x00000400
3387 #define SONYPI_MEMORYSTICK_MASK                 0x00000800
3388 #define SONYPI_BATTERY_MASK                     0x00001000
3389 #define SONYPI_WIRELESS_MASK                    0x00002000
3390
3391 struct sonypi_event {
3392         u8      data;
3393         u8      event;
3394 };
3395
3396 /* The set of possible button release events */
3397 static struct sonypi_event sonypi_releaseev[] = {
3398         { 0x00, SONYPI_EVENT_ANYBUTTON_RELEASED },
3399         { 0, 0 }
3400 };
3401
3402 /* The set of possible jogger events  */
3403 static struct sonypi_event sonypi_joggerev[] = {
3404         { 0x1f, SONYPI_EVENT_JOGDIAL_UP },
3405         { 0x01, SONYPI_EVENT_JOGDIAL_DOWN },
3406         { 0x5f, SONYPI_EVENT_JOGDIAL_UP_PRESSED },
3407         { 0x41, SONYPI_EVENT_JOGDIAL_DOWN_PRESSED },
3408         { 0x1e, SONYPI_EVENT_JOGDIAL_FAST_UP },
3409         { 0x02, SONYPI_EVENT_JOGDIAL_FAST_DOWN },
3410         { 0x5e, SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED },
3411         { 0x42, SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED },
3412         { 0x1d, SONYPI_EVENT_JOGDIAL_VFAST_UP },
3413         { 0x03, SONYPI_EVENT_JOGDIAL_VFAST_DOWN },
3414         { 0x5d, SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED },
3415         { 0x43, SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED },
3416         { 0x40, SONYPI_EVENT_JOGDIAL_PRESSED },
3417         { 0, 0 }
3418 };
3419
3420 /* The set of possible capture button events */
3421 static struct sonypi_event sonypi_captureev[] = {
3422         { 0x05, SONYPI_EVENT_CAPTURE_PARTIALPRESSED },
3423         { 0x07, SONYPI_EVENT_CAPTURE_PRESSED },
3424         { 0x40, SONYPI_EVENT_CAPTURE_PRESSED },
3425         { 0x01, SONYPI_EVENT_CAPTURE_PARTIALRELEASED },
3426         { 0, 0 }
3427 };
3428
3429 /* The set of possible fnkeys events */
3430 static struct sonypi_event sonypi_fnkeyev[] = {
3431         { 0x10, SONYPI_EVENT_FNKEY_ESC },
3432         { 0x11, SONYPI_EVENT_FNKEY_F1 },
3433         { 0x12, SONYPI_EVENT_FNKEY_F2 },
3434         { 0x13, SONYPI_EVENT_FNKEY_F3 },
3435         { 0x14, SONYPI_EVENT_FNKEY_F4 },
3436         { 0x15, SONYPI_EVENT_FNKEY_F5 },
3437         { 0x16, SONYPI_EVENT_FNKEY_F6 },
3438         { 0x17, SONYPI_EVENT_FNKEY_F7 },
3439         { 0x18, SONYPI_EVENT_FNKEY_F8 },
3440         { 0x19, SONYPI_EVENT_FNKEY_F9 },
3441         { 0x1a, SONYPI_EVENT_FNKEY_F10 },
3442         { 0x1b, SONYPI_EVENT_FNKEY_F11 },
3443         { 0x1c, SONYPI_EVENT_FNKEY_F12 },
3444         { 0x1f, SONYPI_EVENT_FNKEY_RELEASED },
3445         { 0x21, SONYPI_EVENT_FNKEY_1 },
3446         { 0x22, SONYPI_EVENT_FNKEY_2 },
3447         { 0x31, SONYPI_EVENT_FNKEY_D },
3448         { 0x32, SONYPI_EVENT_FNKEY_E },
3449         { 0x33, SONYPI_EVENT_FNKEY_F },
3450         { 0x34, SONYPI_EVENT_FNKEY_S },
3451         { 0x35, SONYPI_EVENT_FNKEY_B },
3452         { 0x36, SONYPI_EVENT_FNKEY_ONLY },
3453         { 0, 0 }
3454 };
3455
3456 /* The set of possible program key events */
3457 static struct sonypi_event sonypi_pkeyev[] = {
3458         { 0x01, SONYPI_EVENT_PKEY_P1 },
3459         { 0x02, SONYPI_EVENT_PKEY_P2 },
3460         { 0x04, SONYPI_EVENT_PKEY_P3 },
3461         { 0x20, SONYPI_EVENT_PKEY_P1 },
3462         { 0, 0 }
3463 };
3464
3465 /* The set of possible bluetooth events */
3466 static struct sonypi_event sonypi_blueev[] = {
3467         { 0x55, SONYPI_EVENT_BLUETOOTH_PRESSED },
3468         { 0x59, SONYPI_EVENT_BLUETOOTH_ON },
3469         { 0x5a, SONYPI_EVENT_BLUETOOTH_OFF },
3470         { 0, 0 }
3471 };
3472
3473 /* The set of possible wireless events */
3474 static struct sonypi_event sonypi_wlessev[] = {
3475         { 0x59, SONYPI_EVENT_IGNORE },
3476         { 0x5a, SONYPI_EVENT_IGNORE },
3477         { 0, 0 }
3478 };
3479
3480 /* The set of possible back button events */
3481 static struct sonypi_event sonypi_backev[] = {
3482         { 0x20, SONYPI_EVENT_BACK_PRESSED },
3483         { 0, 0 }
3484 };
3485
3486 /* The set of possible help button events */
3487 static struct sonypi_event sonypi_helpev[] = {
3488         { 0x3b, SONYPI_EVENT_HELP_PRESSED },
3489         { 0, 0 }
3490 };
3491
3492
3493 /* The set of possible lid events */
3494 static struct sonypi_event sonypi_lidev[] = {
3495         { 0x51, SONYPI_EVENT_LID_CLOSED },
3496         { 0x50, SONYPI_EVENT_LID_OPENED },
3497         { 0, 0 }
3498 };
3499
3500 /* The set of possible zoom events */
3501 static struct sonypi_event sonypi_zoomev[] = {
3502         { 0x39, SONYPI_EVENT_ZOOM_PRESSED },
3503         { 0x10, SONYPI_EVENT_ZOOM_IN_PRESSED },
3504         { 0x20, SONYPI_EVENT_ZOOM_OUT_PRESSED },
3505         { 0x04, SONYPI_EVENT_ZOOM_PRESSED },
3506         { 0, 0 }
3507 };
3508
3509 /* The set of possible thumbphrase events */
3510 static struct sonypi_event sonypi_thumbphraseev[] = {
3511         { 0x3a, SONYPI_EVENT_THUMBPHRASE_PRESSED },
3512         { 0, 0 }
3513 };
3514
3515 /* The set of possible motioneye camera events */
3516 static struct sonypi_event sonypi_meyeev[] = {
3517         { 0x00, SONYPI_EVENT_MEYE_FACE },
3518         { 0x01, SONYPI_EVENT_MEYE_OPPOSITE },
3519         { 0, 0 }
3520 };
3521
3522 /* The set of possible memorystick events */
3523 static struct sonypi_event sonypi_memorystickev[] = {
3524         { 0x53, SONYPI_EVENT_MEMORYSTICK_INSERT },
3525         { 0x54, SONYPI_EVENT_MEMORYSTICK_EJECT },
3526         { 0, 0 }
3527 };
3528
3529 /* The set of possible battery events */
3530 static struct sonypi_event sonypi_batteryev[] = {
3531         { 0x20, SONYPI_EVENT_BATTERY_INSERT },
3532         { 0x30, SONYPI_EVENT_BATTERY_REMOVE },
3533         { 0, 0 }
3534 };
3535
3536 /* The set of possible volume events */
3537 static struct sonypi_event sonypi_volumeev[] = {
3538         { 0x01, SONYPI_EVENT_VOLUME_INC_PRESSED },
3539         { 0x02, SONYPI_EVENT_VOLUME_DEC_PRESSED },
3540         { 0, 0 }
3541 };
3542
3543 /* The set of possible brightness events */
3544 static struct sonypi_event sonypi_brightnessev[] = {
3545         { 0x80, SONYPI_EVENT_BRIGHTNESS_PRESSED },
3546         { 0, 0 }
3547 };
3548
3549 static struct sonypi_eventtypes type1_events[] = {
3550         { 0, 0xffffffff, sonypi_releaseev },
3551         { 0x70, SONYPI_MEYE_MASK, sonypi_meyeev },
3552         { 0x30, SONYPI_LID_MASK, sonypi_lidev },
3553         { 0x60, SONYPI_CAPTURE_MASK, sonypi_captureev },
3554         { 0x10, SONYPI_JOGGER_MASK, sonypi_joggerev },
3555         { 0x20, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
3556         { 0x30, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
3557         { 0x40, SONYPI_PKEY_MASK, sonypi_pkeyev },
3558         { 0x30, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
3559         { 0x40, SONYPI_BATTERY_MASK, sonypi_batteryev },
3560         { 0 },
3561 };
3562 static struct sonypi_eventtypes type2_events[] = {
3563         { 0, 0xffffffff, sonypi_releaseev },
3564         { 0x38, SONYPI_LID_MASK, sonypi_lidev },
3565         { 0x11, SONYPI_JOGGER_MASK, sonypi_joggerev },
3566         { 0x61, SONYPI_CAPTURE_MASK, sonypi_captureev },
3567         { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
3568         { 0x31, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
3569         { 0x08, SONYPI_PKEY_MASK, sonypi_pkeyev },
3570         { 0x11, SONYPI_BACK_MASK, sonypi_backev },
3571         { 0x21, SONYPI_HELP_MASK, sonypi_helpev },
3572         { 0x21, SONYPI_ZOOM_MASK, sonypi_zoomev },
3573         { 0x20, SONYPI_THUMBPHRASE_MASK, sonypi_thumbphraseev },
3574         { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
3575         { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
3576         { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
3577         { 0 },
3578 };
3579 static struct sonypi_eventtypes type3_events[] = {
3580         { 0, 0xffffffff, sonypi_releaseev },
3581         { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
3582         { 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
3583         { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
3584         { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
3585         { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
3586         { 0x05, SONYPI_PKEY_MASK, sonypi_pkeyev },
3587         { 0x05, SONYPI_ZOOM_MASK, sonypi_zoomev },
3588         { 0x05, SONYPI_CAPTURE_MASK, sonypi_captureev },
3589         { 0x05, SONYPI_PKEY_MASK, sonypi_volumeev },
3590         { 0x05, SONYPI_PKEY_MASK, sonypi_brightnessev },
3591         { 0 },
3592 };
3593
3594 /* low level spic calls */
3595 #define ITERATIONS_LONG         10000
3596 #define ITERATIONS_SHORT        10
3597 #define wait_on_command(command, iterations) {                          \
3598         unsigned int n = iterations;                                    \
3599         while (--n && (command))                                        \
3600                 udelay(1);                                              \
3601         if (!n)                                                         \
3602                 dprintk("command failed at %s : %s (line %d)\n",        \
3603                                 __FILE__, __func__, __LINE__);  \
3604 }
3605
3606 static u8 sony_pic_call1(u8 dev)
3607 {
3608         u8 v1, v2;
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         v1 = inb_p(spic_dev.cur_ioport->io1.minimum + 4);
3614         v2 = inb_p(spic_dev.cur_ioport->io1.minimum);
3615         dprintk("sony_pic_call1(0x%.2x): 0x%.4x\n", dev, (v2 << 8) | v1);
3616         return v2;
3617 }
3618
3619 static u8 sony_pic_call2(u8 dev, u8 fn)
3620 {
3621         u8 v1;
3622
3623         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
3624                         ITERATIONS_LONG);
3625         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
3626         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
3627                         ITERATIONS_LONG);
3628         outb(fn, spic_dev.cur_ioport->io1.minimum);
3629         v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
3630         dprintk("sony_pic_call2(0x%.2x - 0x%.2x): 0x%.4x\n", dev, fn, v1);
3631         return v1;
3632 }
3633
3634 static u8 sony_pic_call3(u8 dev, u8 fn, u8 v)
3635 {
3636         u8 v1;
3637
3638         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
3639         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
3640         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
3641         outb(fn, spic_dev.cur_ioport->io1.minimum);
3642         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
3643         outb(v, spic_dev.cur_ioport->io1.minimum);
3644         v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
3645         dprintk("sony_pic_call3(0x%.2x - 0x%.2x - 0x%.2x): 0x%.4x\n",
3646                         dev, fn, v, v1);
3647         return v1;
3648 }
3649
3650 /*
3651  * minidrivers for SPIC models
3652  */
3653 static int type3_handle_irq(const u8 data_mask, const u8 ev)
3654 {
3655         /*
3656          * 0x31 could mean we have to take some extra action and wait for
3657          * the next irq for some Type3 models, it will generate a new
3658          * irq and we can read new data from the device:
3659          *  - 0x5c and 0x5f requires 0xA0
3660          *  - 0x61 requires 0xB3
3661          */
3662         if (data_mask == 0x31) {
3663                 if (ev == 0x5c || ev == 0x5f)
3664                         sony_pic_call1(0xA0);
3665                 else if (ev == 0x61)
3666                         sony_pic_call1(0xB3);
3667                 return 0;
3668         }
3669         return 1;
3670 }
3671
3672 static void sony_pic_detect_device_type(struct sony_pic_dev *dev)
3673 {
3674         struct pci_dev *pcidev;
3675
3676         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3677                         PCI_DEVICE_ID_INTEL_82371AB_3, NULL);
3678         if (pcidev) {
3679                 dev->model = SONYPI_DEVICE_TYPE1;
3680                 dev->evport_offset = SONYPI_TYPE1_OFFSET;
3681                 dev->event_types = type1_events;
3682                 goto out;
3683         }
3684
3685         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3686                         PCI_DEVICE_ID_INTEL_ICH6_1, NULL);
3687         if (pcidev) {
3688                 dev->model = SONYPI_DEVICE_TYPE2;
3689                 dev->evport_offset = SONYPI_TYPE2_OFFSET;
3690                 dev->event_types = type2_events;
3691                 goto out;
3692         }
3693
3694         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3695                         PCI_DEVICE_ID_INTEL_ICH7_1, NULL);
3696         if (pcidev) {
3697                 dev->model = SONYPI_DEVICE_TYPE3;
3698                 dev->handle_irq = type3_handle_irq;
3699                 dev->evport_offset = SONYPI_TYPE3_OFFSET;
3700                 dev->event_types = type3_events;
3701                 goto out;
3702         }
3703
3704         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3705                         PCI_DEVICE_ID_INTEL_ICH8_4, NULL);
3706         if (pcidev) {
3707                 dev->model = SONYPI_DEVICE_TYPE3;
3708                 dev->handle_irq = type3_handle_irq;
3709                 dev->evport_offset = SONYPI_TYPE3_OFFSET;
3710                 dev->event_types = type3_events;
3711                 goto out;
3712         }
3713
3714         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3715                         PCI_DEVICE_ID_INTEL_ICH9_1, NULL);
3716         if (pcidev) {
3717                 dev->model = SONYPI_DEVICE_TYPE3;
3718                 dev->handle_irq = type3_handle_irq;
3719                 dev->evport_offset = SONYPI_TYPE3_OFFSET;
3720                 dev->event_types = type3_events;
3721                 goto out;
3722         }
3723
3724         /* default */
3725         dev->model = SONYPI_DEVICE_TYPE2;
3726         dev->evport_offset = SONYPI_TYPE2_OFFSET;
3727         dev->event_types = type2_events;
3728
3729 out:
3730         pci_dev_put(pcidev);
3731
3732         pr_info("detected Type%d model\n",
3733                 dev->model == SONYPI_DEVICE_TYPE1 ? 1 :
3734                 dev->model == SONYPI_DEVICE_TYPE2 ? 2 : 3);
3735 }
3736
3737 /* camera tests and poweron/poweroff */
3738 #define SONYPI_CAMERA_PICTURE           5
3739 #define SONYPI_CAMERA_CONTROL           0x10
3740
3741 #define SONYPI_CAMERA_BRIGHTNESS                0
3742 #define SONYPI_CAMERA_CONTRAST                  1
3743 #define SONYPI_CAMERA_HUE                       2
3744 #define SONYPI_CAMERA_COLOR                     3
3745 #define SONYPI_CAMERA_SHARPNESS                 4
3746
3747 #define SONYPI_CAMERA_EXPOSURE_MASK             0xC
3748 #define SONYPI_CAMERA_WHITE_BALANCE_MASK        0x3
3749 #define SONYPI_CAMERA_PICTURE_MODE_MASK         0x30
3750 #define SONYPI_CAMERA_MUTE_MASK                 0x40
3751
3752 /* the rest don't need a loop until not 0xff */
3753 #define SONYPI_CAMERA_AGC                       6
3754 #define SONYPI_CAMERA_AGC_MASK                  0x30
3755 #define SONYPI_CAMERA_SHUTTER_MASK              0x7
3756
3757 #define SONYPI_CAMERA_SHUTDOWN_REQUEST          7
3758 #define SONYPI_CAMERA_CONTROL                   0x10
3759
3760 #define SONYPI_CAMERA_STATUS                    7
3761 #define SONYPI_CAMERA_STATUS_READY              0x2
3762 #define SONYPI_CAMERA_STATUS_POSITION           0x4
3763
3764 #define SONYPI_DIRECTION_BACKWARDS              0x4
3765
3766 #define SONYPI_CAMERA_REVISION                  8
3767 #define SONYPI_CAMERA_ROMVERSION                9
3768
3769 static int __sony_pic_camera_ready(void)
3770 {
3771         u8 v;
3772
3773         v = sony_pic_call2(0x8f, SONYPI_CAMERA_STATUS);
3774         return (v != 0xff && (v & SONYPI_CAMERA_STATUS_READY));
3775 }
3776
3777 static int __sony_pic_camera_off(void)
3778 {
3779         if (!camera) {
3780                 pr_warn("camera control not enabled\n");
3781                 return -ENODEV;
3782         }
3783
3784         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE,
3785                                 SONYPI_CAMERA_MUTE_MASK),
3786                         ITERATIONS_SHORT);
3787
3788         if (spic_dev.camera_power) {
3789                 sony_pic_call2(0x91, 0);
3790                 spic_dev.camera_power = 0;
3791         }
3792         return 0;
3793 }
3794
3795 static int __sony_pic_camera_on(void)
3796 {
3797         int i, j, x;
3798
3799         if (!camera) {
3800                 pr_warn("camera control not enabled\n");
3801                 return -ENODEV;
3802         }
3803
3804         if (spic_dev.camera_power)
3805                 return 0;
3806
3807         for (j = 5; j > 0; j--) {
3808
3809                 for (x = 0; x < 100 && sony_pic_call2(0x91, 0x1); x++)
3810                         msleep(10);
3811                 sony_pic_call1(0x93);
3812
3813                 for (i = 400; i > 0; i--) {
3814                         if (__sony_pic_camera_ready())
3815                                 break;
3816                         msleep(10);
3817                 }
3818                 if (i)
3819                         break;
3820         }
3821
3822         if (j == 0) {
3823                 pr_warn("failed to power on camera\n");
3824                 return -ENODEV;
3825         }
3826
3827         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTROL,
3828                                 0x5a),
3829                         ITERATIONS_SHORT);
3830
3831         spic_dev.camera_power = 1;
3832         return 0;
3833 }
3834
3835 /* External camera command (exported to the motion eye v4l driver) */
3836 int sony_pic_camera_command(int command, u8 value)
3837 {
3838         if (!camera)
3839                 return -EIO;
3840
3841         mutex_lock(&spic_dev.lock);
3842
3843         switch (command) {
3844         case SONY_PIC_COMMAND_SETCAMERA:
3845                 if (value)
3846                         __sony_pic_camera_on();
3847                 else
3848                         __sony_pic_camera_off();
3849                 break;
3850         case SONY_PIC_COMMAND_SETCAMERABRIGHTNESS:
3851                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_BRIGHTNESS, value),
3852                                 ITERATIONS_SHORT);
3853                 break;
3854         case SONY_PIC_COMMAND_SETCAMERACONTRAST:
3855                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTRAST, value),
3856                                 ITERATIONS_SHORT);
3857                 break;
3858         case SONY_PIC_COMMAND_SETCAMERAHUE:
3859                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_HUE, value),
3860                                 ITERATIONS_SHORT);
3861                 break;
3862         case SONY_PIC_COMMAND_SETCAMERACOLOR:
3863                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_COLOR, value),
3864                                 ITERATIONS_SHORT);
3865                 break;
3866         case SONY_PIC_COMMAND_SETCAMERASHARPNESS:
3867                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_SHARPNESS, value),
3868                                 ITERATIONS_SHORT);
3869                 break;
3870         case SONY_PIC_COMMAND_SETCAMERAPICTURE:
3871                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE, value),
3872                                 ITERATIONS_SHORT);
3873                 break;
3874         case SONY_PIC_COMMAND_SETCAMERAAGC:
3875                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_AGC, value),
3876                                 ITERATIONS_SHORT);
3877                 break;
3878         default:
3879                 pr_err("sony_pic_camera_command invalid: %d\n", command);
3880                 break;
3881         }
3882         mutex_unlock(&spic_dev.lock);
3883         return 0;
3884 }
3885 EXPORT_SYMBOL(sony_pic_camera_command);
3886
3887 /* gprs/edge modem (SZ460N and SZ210P), thanks to Joshua Wise */
3888 static void __sony_pic_set_wwanpower(u8 state)
3889 {
3890         state = !!state;
3891         if (spic_dev.wwan_power == state)
3892                 return;
3893         sony_pic_call2(0xB0, state);
3894         sony_pic_call1(0x82);
3895         spic_dev.wwan_power = state;
3896 }
3897
3898 static ssize_t sony_pic_wwanpower_store(struct device *dev,
3899                 struct device_attribute *attr,
3900                 const char *buffer, size_t count)
3901 {
3902         unsigned long value;
3903         if (count > 31)
3904                 return -EINVAL;
3905
3906         if (kstrtoul(buffer, 10, &value))
3907                 return -EINVAL;
3908
3909         mutex_lock(&spic_dev.lock);
3910         __sony_pic_set_wwanpower(value);
3911         mutex_unlock(&spic_dev.lock);
3912
3913         return count;
3914 }
3915
3916 static ssize_t sony_pic_wwanpower_show(struct device *dev,
3917                 struct device_attribute *attr, char *buffer)
3918 {
3919         ssize_t count;
3920         mutex_lock(&spic_dev.lock);
3921         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.wwan_power);
3922         mutex_unlock(&spic_dev.lock);
3923         return count;
3924 }
3925
3926 /* bluetooth subsystem power state */
3927 static void __sony_pic_set_bluetoothpower(u8 state)
3928 {
3929         state = !!state;
3930         if (spic_dev.bluetooth_power == state)
3931                 return;
3932         sony_pic_call2(0x96, state);
3933         sony_pic_call1(0x82);
3934         spic_dev.bluetooth_power = state;
3935 }
3936
3937 static ssize_t sony_pic_bluetoothpower_store(struct device *dev,
3938                 struct device_attribute *attr,
3939                 const char *buffer, size_t count)
3940 {
3941         unsigned long value;
3942         if (count > 31)
3943                 return -EINVAL;
3944
3945         if (kstrtoul(buffer, 10, &value))
3946                 return -EINVAL;
3947
3948         mutex_lock(&spic_dev.lock);
3949         __sony_pic_set_bluetoothpower(value);
3950         mutex_unlock(&spic_dev.lock);
3951
3952         return count;
3953 }
3954
3955 static ssize_t sony_pic_bluetoothpower_show(struct device *dev,
3956                 struct device_attribute *attr, char *buffer)
3957 {
3958         ssize_t count = 0;
3959         mutex_lock(&spic_dev.lock);
3960         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.bluetooth_power);
3961         mutex_unlock(&spic_dev.lock);
3962         return count;
3963 }
3964
3965 /* fan speed */
3966 /* FAN0 information (reverse engineered from ACPI tables) */
3967 #define SONY_PIC_FAN0_STATUS    0x93
3968 static int sony_pic_set_fanspeed(unsigned long value)
3969 {
3970         return ec_write(SONY_PIC_FAN0_STATUS, value);
3971 }
3972
3973 static int sony_pic_get_fanspeed(u8 *value)
3974 {
3975         return ec_read(SONY_PIC_FAN0_STATUS, value);
3976 }
3977
3978 static ssize_t sony_pic_fanspeed_store(struct device *dev,
3979                 struct device_attribute *attr,
3980                 const char *buffer, size_t count)
3981 {
3982         unsigned long value;
3983         if (count > 31)
3984                 return -EINVAL;
3985
3986         if (kstrtoul(buffer, 10, &value))
3987                 return -EINVAL;
3988
3989         if (sony_pic_set_fanspeed(value))
3990                 return -EIO;
3991
3992         return count;
3993 }
3994
3995 static ssize_t sony_pic_fanspeed_show(struct device *dev,
3996                 struct device_attribute *attr, char *buffer)
3997 {
3998         u8 value = 0;
3999         if (sony_pic_get_fanspeed(&value))
4000                 return -EIO;
4001
4002         return snprintf(buffer, PAGE_SIZE, "%d\n", value);
4003 }
4004
4005 #define SPIC_ATTR(_name, _mode)                                 \
4006 struct device_attribute spic_attr_##_name = __ATTR(_name,       \
4007                 _mode, sony_pic_## _name ##_show,               \
4008                 sony_pic_## _name ##_store)
4009
4010 static SPIC_ATTR(bluetoothpower, 0644);
4011 static SPIC_ATTR(wwanpower, 0644);
4012 static SPIC_ATTR(fanspeed, 0644);
4013
4014 static struct attribute *spic_attributes[] = {
4015         &spic_attr_bluetoothpower.attr,
4016         &spic_attr_wwanpower.attr,
4017         &spic_attr_fanspeed.attr,
4018         NULL
4019 };
4020
4021 static const struct attribute_group spic_attribute_group = {
4022         .attrs = spic_attributes
4023 };
4024
4025 /******** SONYPI compatibility **********/
4026 #ifdef CONFIG_SONYPI_COMPAT
4027
4028 /* battery / brightness / temperature  addresses */
4029 #define SONYPI_BAT_FLAGS        0x81
4030 #define SONYPI_LCD_LIGHT        0x96
4031 #define SONYPI_BAT1_PCTRM       0xa0
4032 #define SONYPI_BAT1_LEFT        0xa2
4033 #define SONYPI_BAT1_MAXRT       0xa4
4034 #define SONYPI_BAT2_PCTRM       0xa8
4035 #define SONYPI_BAT2_LEFT        0xaa
4036 #define SONYPI_BAT2_MAXRT       0xac
4037 #define SONYPI_BAT1_MAXTK       0xb0
4038 #define SONYPI_BAT1_FULL        0xb2
4039 #define SONYPI_BAT2_MAXTK       0xb8
4040 #define SONYPI_BAT2_FULL        0xba
4041 #define SONYPI_TEMP_STATUS      0xC1
4042
4043 struct sonypi_compat_s {
4044         struct fasync_struct    *fifo_async;
4045         struct kfifo            fifo;
4046         spinlock_t              fifo_lock;
4047         wait_queue_head_t       fifo_proc_list;
4048         atomic_t                open_count;
4049 };
4050 static struct sonypi_compat_s sonypi_compat = {
4051         .open_count = ATOMIC_INIT(0),
4052 };
4053
4054 static int sonypi_misc_fasync(int fd, struct file *filp, int on)
4055 {
4056         return fasync_helper(fd, filp, on, &sonypi_compat.fifo_async);
4057 }
4058
4059 static int sonypi_misc_release(struct inode *inode, struct file *file)
4060 {
4061         atomic_dec(&sonypi_compat.open_count);
4062         return 0;
4063 }
4064
4065 static int sonypi_misc_open(struct inode *inode, struct file *file)
4066 {
4067         /* Flush input queue on first open */
4068         unsigned long flags;
4069
4070         spin_lock_irqsave(&sonypi_compat.fifo_lock, flags);
4071
4072         if (atomic_inc_return(&sonypi_compat.open_count) == 1)
4073                 kfifo_reset(&sonypi_compat.fifo);
4074
4075         spin_unlock_irqrestore(&sonypi_compat.fifo_lock, flags);
4076
4077         return 0;
4078 }
4079
4080 static ssize_t sonypi_misc_read(struct file *file, char __user *buf,
4081                                 size_t count, loff_t *pos)
4082 {
4083         ssize_t ret;
4084         unsigned char c;
4085
4086         if ((kfifo_len(&sonypi_compat.fifo) == 0) &&
4087             (file->f_flags & O_NONBLOCK))
4088                 return -EAGAIN;
4089
4090         ret = wait_event_interruptible(sonypi_compat.fifo_proc_list,
4091                                        kfifo_len(&sonypi_compat.fifo) != 0);
4092         if (ret)
4093                 return ret;
4094
4095         while (ret < count &&
4096                (kfifo_out_locked(&sonypi_compat.fifo, &c, sizeof(c),
4097                           &sonypi_compat.fifo_lock) == sizeof(c))) {
4098                 if (put_user(c, buf++))
4099                         return -EFAULT;
4100                 ret++;
4101         }
4102
4103         if (ret > 0) {
4104                 struct inode *inode = file_inode(file);
4105                 inode->i_atime = current_time(inode);
4106         }
4107
4108         return ret;
4109 }
4110
4111 static __poll_t sonypi_misc_poll(struct file *file, poll_table *wait)
4112 {
4113         poll_wait(file, &sonypi_compat.fifo_proc_list, wait);
4114         if (kfifo_len(&sonypi_compat.fifo))
4115                 return EPOLLIN | EPOLLRDNORM;
4116         return 0;
4117 }
4118
4119 static int ec_read16(u8 addr, u16 *value)
4120 {
4121         u8 val_lb, val_hb;
4122         if (ec_read(addr, &val_lb))
4123                 return -1;
4124         if (ec_read(addr + 1, &val_hb))
4125                 return -1;
4126         *value = val_lb | (val_hb << 8);
4127         return 0;
4128 }
4129
4130 static long sonypi_misc_ioctl(struct file *fp, unsigned int cmd,
4131                                                         unsigned long arg)
4132 {
4133         int ret = 0;
4134         void __user *argp = (void __user *)arg;
4135         u8 val8;
4136         u16 val16;
4137         int value;
4138
4139         mutex_lock(&spic_dev.lock);
4140         switch (cmd) {
4141         case SONYPI_IOCGBRT:
4142                 if (sony_bl_props.dev == NULL) {
4143                         ret = -EIO;
4144                         break;
4145                 }
4146                 if (sony_nc_int_call(sony_nc_acpi_handle, "GBRT", NULL,
4147                                         &value)) {
4148                         ret = -EIO;
4149                         break;
4150                 }
4151                 val8 = ((value & 0xff) - 1) << 5;
4152                 if (copy_to_user(argp, &val8, sizeof(val8)))
4153                                 ret = -EFAULT;
4154                 break;
4155         case SONYPI_IOCSBRT:
4156                 if (sony_bl_props.dev == NULL) {
4157                         ret = -EIO;
4158                         break;
4159                 }
4160                 if (copy_from_user(&val8, argp, sizeof(val8))) {
4161                         ret = -EFAULT;
4162                         break;
4163                 }
4164                 value = (val8 >> 5) + 1;
4165                 if (sony_nc_int_call(sony_nc_acpi_handle, "SBRT", &value,
4166                                         NULL)) {
4167                         ret = -EIO;
4168                         break;
4169                 }
4170                 /* sync the backlight device status */
4171                 sony_bl_props.dev->props.brightness =
4172                     sony_backlight_get_brightness(sony_bl_props.dev);
4173                 break;
4174         case SONYPI_IOCGBAT1CAP:
4175                 if (ec_read16(SONYPI_BAT1_FULL, &val16)) {
4176                         ret = -EIO;
4177                         break;
4178                 }
4179                 if (copy_to_user(argp, &val16, sizeof(val16)))
4180                         ret = -EFAULT;
4181                 break;
4182         case SONYPI_IOCGBAT1REM:
4183                 if (ec_read16(SONYPI_BAT1_LEFT, &val16)) {
4184                         ret = -EIO;
4185                         break;
4186                 }
4187                 if (copy_to_user(argp, &val16, sizeof(val16)))
4188                         ret = -EFAULT;
4189                 break;
4190         case SONYPI_IOCGBAT2CAP:
4191                 if (ec_read16(SONYPI_BAT2_FULL, &val16)) {
4192                         ret = -EIO;
4193                         break;
4194                 }
4195                 if (copy_to_user(argp, &val16, sizeof(val16)))
4196                         ret = -EFAULT;
4197                 break;
4198         case SONYPI_IOCGBAT2REM:
4199                 if (ec_read16(SONYPI_BAT2_LEFT, &val16)) {
4200                         ret = -EIO;
4201                         break;
4202                 }
4203                 if (copy_to_user(argp, &val16, sizeof(val16)))
4204                         ret = -EFAULT;
4205                 break;
4206         case SONYPI_IOCGBATFLAGS:
4207                 if (ec_read(SONYPI_BAT_FLAGS, &val8)) {
4208                         ret = -EIO;
4209                         break;
4210                 }
4211                 val8 &= 0x07;
4212                 if (copy_to_user(argp, &val8, sizeof(val8)))
4213                         ret = -EFAULT;
4214                 break;
4215         case SONYPI_IOCGBLUE:
4216                 val8 = spic_dev.bluetooth_power;
4217                 if (copy_to_user(argp, &val8, sizeof(val8)))
4218                         ret = -EFAULT;
4219                 break;
4220         case SONYPI_IOCSBLUE:
4221                 if (copy_from_user(&val8, argp, sizeof(val8))) {
4222                         ret = -EFAULT;
4223                         break;
4224                 }
4225                 __sony_pic_set_bluetoothpower(val8);
4226                 break;
4227         /* FAN Controls */
4228         case SONYPI_IOCGFAN:
4229                 if (sony_pic_get_fanspeed(&val8)) {
4230                         ret = -EIO;
4231                         break;
4232                 }
4233                 if (copy_to_user(argp, &val8, sizeof(val8)))
4234                         ret = -EFAULT;
4235                 break;
4236         case SONYPI_IOCSFAN:
4237                 if (copy_from_user(&val8, argp, sizeof(val8))) {
4238                         ret = -EFAULT;
4239                         break;
4240                 }
4241                 if (sony_pic_set_fanspeed(val8))
4242                         ret = -EIO;
4243                 break;
4244         /* GET Temperature (useful under APM) */
4245         case SONYPI_IOCGTEMP:
4246                 if (ec_read(SONYPI_TEMP_STATUS, &val8)) {
4247                         ret = -EIO;
4248                         break;
4249                 }
4250                 if (copy_to_user(argp, &val8, sizeof(val8)))
4251                         ret = -EFAULT;
4252                 break;
4253         default:
4254                 ret = -EINVAL;
4255         }
4256         mutex_unlock(&spic_dev.lock);
4257         return ret;
4258 }
4259
4260 static const struct file_operations sonypi_misc_fops = {
4261         .owner          = THIS_MODULE,
4262         .read           = sonypi_misc_read,
4263         .poll           = sonypi_misc_poll,
4264         .open           = sonypi_misc_open,
4265         .release        = sonypi_misc_release,
4266         .fasync         = sonypi_misc_fasync,
4267         .unlocked_ioctl = sonypi_misc_ioctl,
4268         .llseek         = noop_llseek,
4269 };
4270
4271 static struct miscdevice sonypi_misc_device = {
4272         .minor          = MISC_DYNAMIC_MINOR,
4273         .name           = "sonypi",
4274         .fops           = &sonypi_misc_fops,
4275 };
4276
4277 static void sonypi_compat_report_event(u8 event)
4278 {
4279         kfifo_in_locked(&sonypi_compat.fifo, (unsigned char *)&event,
4280                         sizeof(event), &sonypi_compat.fifo_lock);
4281         kill_fasync(&sonypi_compat.fifo_async, SIGIO, POLL_IN);
4282         wake_up_interruptible(&sonypi_compat.fifo_proc_list);
4283 }
4284
4285 static int sonypi_compat_init(void)
4286 {
4287         int error;
4288
4289         spin_lock_init(&sonypi_compat.fifo_lock);
4290         error =
4291          kfifo_alloc(&sonypi_compat.fifo, SONY_LAPTOP_BUF_SIZE, GFP_KERNEL);
4292         if (error) {
4293                 pr_err("kfifo_alloc failed\n");
4294                 return error;
4295         }
4296
4297         init_waitqueue_head(&sonypi_compat.fifo_proc_list);
4298
4299         if (minor != -1)
4300                 sonypi_misc_device.minor = minor;
4301         error = misc_register(&sonypi_misc_device);
4302         if (error) {
4303                 pr_err("misc_register failed\n");
4304                 goto err_free_kfifo;
4305         }
4306         if (minor == -1)
4307                 pr_info("device allocated minor is %d\n",
4308                         sonypi_misc_device.minor);
4309
4310         return 0;
4311
4312 err_free_kfifo:
4313         kfifo_free(&sonypi_compat.fifo);
4314         return error;
4315 }
4316
4317 static void sonypi_compat_exit(void)
4318 {
4319         misc_deregister(&sonypi_misc_device);
4320         kfifo_free(&sonypi_compat.fifo);
4321 }
4322 #else
4323 static int sonypi_compat_init(void) { return 0; }
4324 static void sonypi_compat_exit(void) { }
4325 static void sonypi_compat_report_event(u8 event) { }
4326 #endif /* CONFIG_SONYPI_COMPAT */
4327
4328 /*
4329  * ACPI callbacks
4330  */
4331 static acpi_status
4332 sony_pic_read_possible_resource(struct acpi_resource *resource, void *context)
4333 {
4334         u32 i;
4335         struct sony_pic_dev *dev = (struct sony_pic_dev *)context;
4336
4337         switch (resource->type) {
4338         case ACPI_RESOURCE_TYPE_START_DEPENDENT:
4339                 {
4340                         /* start IO enumeration */
4341                         struct sony_pic_ioport *ioport = kzalloc(sizeof(*ioport), GFP_KERNEL);
4342                         if (!ioport)
4343                                 return AE_ERROR;
4344
4345                         list_add(&ioport->list, &dev->ioports);
4346                         return AE_OK;
4347                 }
4348
4349         case ACPI_RESOURCE_TYPE_END_DEPENDENT:
4350                 /* end IO enumeration */
4351                 return AE_OK;
4352
4353         case ACPI_RESOURCE_TYPE_IRQ:
4354                 {
4355                         struct acpi_resource_irq *p = &resource->data.irq;
4356                         struct sony_pic_irq *interrupt = NULL;
4357                         if (!p || !p->interrupt_count) {
4358                                 /*
4359                                  * IRQ descriptors may have no IRQ# bits set,
4360                                  * particularly those those w/ _STA disabled
4361                                  */
4362                                 dprintk("Blank IRQ resource\n");
4363                                 return AE_OK;
4364                         }
4365                         for (i = 0; i < p->interrupt_count; i++) {
4366                                 if (!p->interrupts[i]) {
4367                                         pr_warn("Invalid IRQ %d\n",
4368                                                 p->interrupts[i]);
4369                                         continue;
4370                                 }
4371                                 interrupt = kzalloc(sizeof(*interrupt),
4372                                                 GFP_KERNEL);
4373                                 if (!interrupt)
4374                                         return AE_ERROR;
4375
4376                                 list_add(&interrupt->list, &dev->interrupts);
4377                                 interrupt->irq.triggering = p->triggering;
4378                                 interrupt->irq.polarity = p->polarity;
4379                                 interrupt->irq.shareable = p->shareable;
4380                                 interrupt->irq.interrupt_count = 1;
4381                                 interrupt->irq.interrupts[0] = p->interrupts[i];
4382                         }
4383                         return AE_OK;
4384                 }
4385         case ACPI_RESOURCE_TYPE_IO:
4386                 {
4387                         struct acpi_resource_io *io = &resource->data.io;
4388                         struct sony_pic_ioport *ioport =
4389                                 list_first_entry(&dev->ioports, struct sony_pic_ioport, list);
4390                         if (!io) {
4391                                 dprintk("Blank IO resource\n");
4392                                 return AE_OK;
4393                         }
4394
4395                         if (!ioport->io1.minimum) {
4396                                 memcpy(&ioport->io1, io, sizeof(*io));
4397                                 dprintk("IO1 at 0x%.4x (0x%.2x)\n", ioport->io1.minimum,
4398                                                 ioport->io1.address_length);
4399                         }
4400                         else if (!ioport->io2.minimum) {
4401                                 memcpy(&ioport->io2, io, sizeof(*io));
4402                                 dprintk("IO2 at 0x%.4x (0x%.2x)\n", ioport->io2.minimum,
4403                                                 ioport->io2.address_length);
4404                         }
4405                         else {
4406                                 pr_err("Unknown SPIC Type, more than 2 IO Ports\n");
4407                                 return AE_ERROR;
4408                         }
4409                         return AE_OK;
4410                 }
4411
4412         case ACPI_RESOURCE_TYPE_END_TAG:
4413                 return AE_OK;
4414
4415         default:
4416                 dprintk("Resource %d isn't an IRQ nor an IO port\n",
4417                         resource->type);
4418                 return AE_CTRL_TERMINATE;
4419
4420         }
4421 }
4422
4423 static int sony_pic_possible_resources(struct acpi_device *device)
4424 {
4425         int result = 0;
4426         acpi_status status = AE_OK;
4427
4428         if (!device)
4429                 return -EINVAL;
4430
4431         /* get device status */
4432         /* see acpi_pci_link_get_current acpi_pci_link_get_possible */
4433         dprintk("Evaluating _STA\n");
4434         result = acpi_bus_get_status(device);
4435         if (result) {
4436                 pr_warn("Unable to read status\n");
4437                 goto end;
4438         }
4439
4440         if (!device->status.enabled)
4441                 dprintk("Device disabled\n");
4442         else
4443                 dprintk("Device enabled\n");
4444
4445         /*
4446          * Query and parse 'method'
4447          */
4448         dprintk("Evaluating %s\n", METHOD_NAME__PRS);
4449         status = acpi_walk_resources(device->handle, METHOD_NAME__PRS,
4450                         sony_pic_read_possible_resource, &spic_dev);
4451         if (ACPI_FAILURE(status)) {
4452                 pr_warn("Failure evaluating %s\n", METHOD_NAME__PRS);
4453                 result = -ENODEV;
4454         }
4455 end:
4456         return result;
4457 }
4458
4459 /*
4460  *  Disable the spic device by calling its _DIS method
4461  */
4462 static int sony_pic_disable(struct acpi_device *device)
4463 {
4464         acpi_status ret = acpi_evaluate_object(device->handle, "_DIS", NULL,
4465                                                NULL);
4466
4467         if (ACPI_FAILURE(ret) && ret != AE_NOT_FOUND)
4468                 return -ENXIO;
4469
4470         dprintk("Device disabled\n");
4471         return 0;
4472 }
4473
4474
4475 /*
4476  *  Based on drivers/acpi/pci_link.c:acpi_pci_link_set
4477  *
4478  *  Call _SRS to set current resources
4479  */
4480 static int sony_pic_enable(struct acpi_device *device,
4481                 struct sony_pic_ioport *ioport, struct sony_pic_irq *irq)
4482 {
4483         acpi_status status;
4484         int result = 0;
4485         /* Type 1 resource layout is:
4486          *    IO
4487          *    IO
4488          *    IRQNoFlags
4489          *    End
4490          *
4491          * Type 2 and 3 resource layout is:
4492          *    IO
4493          *    IRQNoFlags
4494          *    End
4495          */
4496         struct {
4497                 struct acpi_resource res1;
4498                 struct acpi_resource res2;
4499                 struct acpi_resource res3;
4500                 struct acpi_resource res4;
4501         } *resource;
4502         struct acpi_buffer buffer = { 0, NULL };
4503
4504         if (!ioport || !irq)
4505                 return -EINVAL;
4506
4507         /* init acpi_buffer */
4508         resource = kzalloc(sizeof(*resource) + 1, GFP_KERNEL);
4509         if (!resource)
4510                 return -ENOMEM;
4511
4512         buffer.length = sizeof(*resource) + 1;
4513         buffer.pointer = resource;
4514
4515         /* setup Type 1 resources */
4516         if (spic_dev.model == SONYPI_DEVICE_TYPE1) {
4517
4518                 /* setup io resources */
4519                 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
4520                 resource->res1.length = sizeof(struct acpi_resource);
4521                 memcpy(&resource->res1.data.io, &ioport->io1,
4522                                 sizeof(struct acpi_resource_io));
4523
4524                 resource->res2.type = ACPI_RESOURCE_TYPE_IO;
4525                 resource->res2.length = sizeof(struct acpi_resource);
4526                 memcpy(&resource->res2.data.io, &ioport->io2,
4527                                 sizeof(struct acpi_resource_io));
4528
4529                 /* setup irq resource */
4530                 resource->res3.type = ACPI_RESOURCE_TYPE_IRQ;
4531                 resource->res3.length = sizeof(struct acpi_resource);
4532                 memcpy(&resource->res3.data.irq, &irq->irq,
4533                                 sizeof(struct acpi_resource_irq));
4534                 /* we requested a shared irq */
4535                 resource->res3.data.irq.shareable = ACPI_SHARED;
4536
4537                 resource->res4.type = ACPI_RESOURCE_TYPE_END_TAG;
4538                 resource->res4.length = sizeof(struct acpi_resource);
4539         }
4540         /* setup Type 2/3 resources */
4541         else {
4542                 /* setup io resource */
4543                 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
4544                 resource->res1.length = sizeof(struct acpi_resource);
4545                 memcpy(&resource->res1.data.io, &ioport->io1,
4546                                 sizeof(struct acpi_resource_io));
4547
4548                 /* setup irq resource */
4549                 resource->res2.type = ACPI_RESOURCE_TYPE_IRQ;
4550                 resource->res2.length = sizeof(struct acpi_resource);
4551                 memcpy(&resource->res2.data.irq, &irq->irq,
4552                                 sizeof(struct acpi_resource_irq));
4553                 /* we requested a shared irq */
4554                 resource->res2.data.irq.shareable = ACPI_SHARED;
4555
4556                 resource->res3.type = ACPI_RESOURCE_TYPE_END_TAG;
4557                 resource->res3.length = sizeof(struct acpi_resource);
4558         }
4559
4560         /* Attempt to set the resource */
4561         dprintk("Evaluating _SRS\n");
4562         status = acpi_set_current_resources(device->handle, &buffer);
4563
4564         /* check for total failure */
4565         if (ACPI_FAILURE(status)) {
4566                 pr_err("Error evaluating _SRS\n");
4567                 result = -ENODEV;
4568                 goto end;
4569         }
4570
4571         /* Necessary device initializations calls (from sonypi) */
4572         sony_pic_call1(0x82);
4573         sony_pic_call2(0x81, 0xff);
4574         sony_pic_call1(compat ? 0x92 : 0x82);
4575
4576 end:
4577         kfree(resource);
4578         return result;
4579 }
4580
4581 /*****************
4582  *
4583  * ISR: some event is available
4584  *
4585  *****************/
4586 static irqreturn_t sony_pic_irq(int irq, void *dev_id)
4587 {
4588         int i, j;
4589         u8 ev = 0;
4590         u8 data_mask = 0;
4591         u8 device_event = 0;
4592
4593         struct sony_pic_dev *dev = (struct sony_pic_dev *) dev_id;
4594
4595         ev = inb_p(dev->cur_ioport->io1.minimum);
4596         if (dev->cur_ioport->io2.minimum)
4597                 data_mask = inb_p(dev->cur_ioport->io2.minimum);
4598         else
4599                 data_mask = inb_p(dev->cur_ioport->io1.minimum +
4600                                 dev->evport_offset);
4601
4602         dprintk("event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
4603                         ev, data_mask, dev->cur_ioport->io1.minimum,
4604                         dev->evport_offset);
4605
4606         if (ev == 0x00 || ev == 0xff)
4607                 return IRQ_HANDLED;
4608
4609         for (i = 0; dev->event_types[i].mask; i++) {
4610
4611                 if ((data_mask & dev->event_types[i].data) !=
4612                     dev->event_types[i].data)
4613                         continue;
4614
4615                 if (!(mask & dev->event_types[i].mask))
4616                         continue;
4617
4618                 for (j = 0; dev->event_types[i].events[j].event; j++) {
4619                         if (ev == dev->event_types[i].events[j].data) {
4620                                 device_event =
4621                                         dev->event_types[i].events[j].event;
4622                                 /* some events may require ignoring */
4623                                 if (!device_event)
4624                                         return IRQ_HANDLED;
4625                                 goto found;
4626                         }
4627                 }
4628         }
4629         /* Still not able to decode the event try to pass
4630          * it over to the minidriver
4631          */
4632         if (dev->handle_irq && dev->handle_irq(data_mask, ev) == 0)
4633                 return IRQ_HANDLED;
4634
4635         dprintk("unknown event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
4636                         ev, data_mask, dev->cur_ioport->io1.minimum,
4637                         dev->evport_offset);
4638         return IRQ_HANDLED;
4639
4640 found:
4641         sony_laptop_report_input_event(device_event);
4642         sonypi_compat_report_event(device_event);
4643         return IRQ_HANDLED;
4644 }
4645
4646 /*****************
4647  *
4648  *  ACPI driver
4649  *
4650  *****************/
4651 static int sony_pic_remove(struct acpi_device *device)
4652 {
4653         struct sony_pic_ioport *io, *tmp_io;
4654         struct sony_pic_irq *irq, *tmp_irq;
4655
4656         if (sony_pic_disable(device)) {
4657                 pr_err("Couldn't disable device\n");
4658                 return -ENXIO;
4659         }
4660
4661         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
4662         release_region(spic_dev.cur_ioport->io1.minimum,
4663                         spic_dev.cur_ioport->io1.address_length);
4664         if (spic_dev.cur_ioport->io2.minimum)
4665                 release_region(spic_dev.cur_ioport->io2.minimum,
4666                                 spic_dev.cur_ioport->io2.address_length);
4667
4668         sonypi_compat_exit();
4669
4670         sony_laptop_remove_input();
4671
4672         /* pf attrs */
4673         sysfs_remove_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
4674         sony_pf_remove();
4675
4676         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
4677                 list_del(&io->list);
4678                 kfree(io);
4679         }
4680         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
4681                 list_del(&irq->list);
4682                 kfree(irq);
4683         }
4684         spic_dev.cur_ioport = NULL;
4685         spic_dev.cur_irq = NULL;
4686
4687         dprintk(SONY_PIC_DRIVER_NAME " removed.\n");
4688         return 0;
4689 }
4690
4691 static int sony_pic_add(struct acpi_device *device)
4692 {
4693         int result;
4694         struct sony_pic_ioport *io, *tmp_io;
4695         struct sony_pic_irq *irq, *tmp_irq;
4696
4697         spic_dev.acpi_dev = device;
4698         strcpy(acpi_device_class(device), "sony/hotkey");
4699         sony_pic_detect_device_type(&spic_dev);
4700         mutex_init(&spic_dev.lock);
4701
4702         /* read _PRS resources */
4703         result = sony_pic_possible_resources(device);
4704         if (result) {
4705                 pr_err("Unable to read possible resources\n");
4706                 goto err_free_resources;
4707         }
4708
4709         /* setup input devices and helper fifo */
4710         result = sony_laptop_setup_input(device);
4711         if (result) {
4712                 pr_err("Unable to create input devices\n");
4713                 goto err_free_resources;
4714         }
4715
4716         result = sonypi_compat_init();
4717         if (result)
4718                 goto err_remove_input;
4719
4720         /* request io port */
4721         list_for_each_entry_reverse(io, &spic_dev.ioports, list) {
4722                 if (request_region(io->io1.minimum, io->io1.address_length,
4723                                         "Sony Programmable I/O Device")) {
4724                         dprintk("I/O port1: 0x%.4x (0x%.4x) + 0x%.2x\n",
4725                                         io->io1.minimum, io->io1.maximum,
4726                                         io->io1.address_length);
4727                         /* Type 1 have 2 ioports */
4728                         if (io->io2.minimum) {
4729                                 if (request_region(io->io2.minimum,
4730                                                 io->io2.address_length,
4731                                                 "Sony Programmable I/O Device")) {
4732                                         dprintk("I/O port2: 0x%.4x (0x%.4x) + 0x%.2x\n",
4733                                                         io->io2.minimum, io->io2.maximum,
4734                                                         io->io2.address_length);
4735                                         spic_dev.cur_ioport = io;
4736                                         break;
4737                                 }
4738                                 else {
4739                                         dprintk("Unable to get I/O port2: "
4740                                                         "0x%.4x (0x%.4x) + 0x%.2x\n",
4741                                                         io->io2.minimum, io->io2.maximum,
4742                                                         io->io2.address_length);
4743                                         release_region(io->io1.minimum,
4744                                                         io->io1.address_length);
4745                                 }
4746                         }
4747                         else {
4748                                 spic_dev.cur_ioport = io;
4749                                 break;
4750                         }
4751                 }
4752         }
4753         if (!spic_dev.cur_ioport) {
4754                 pr_err("Failed to request_region\n");
4755                 result = -ENODEV;
4756                 goto err_remove_compat;
4757         }
4758
4759         /* request IRQ */
4760         list_for_each_entry_reverse(irq, &spic_dev.interrupts, list) {
4761                 if (!request_irq(irq->irq.interrupts[0], sony_pic_irq,
4762                                         0, "sony-laptop", &spic_dev)) {
4763                         dprintk("IRQ: %d - triggering: %d - "
4764                                         "polarity: %d - shr: %d\n",
4765                                         irq->irq.interrupts[0],
4766                                         irq->irq.triggering,
4767                                         irq->irq.polarity,
4768                                         irq->irq.shareable);
4769                         spic_dev.cur_irq = irq;
4770                         break;
4771                 }
4772         }
4773         if (!spic_dev.cur_irq) {
4774                 pr_err("Failed to request_irq\n");
4775                 result = -ENODEV;
4776                 goto err_release_region;
4777         }
4778
4779         /* set resource status _SRS */
4780         result = sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
4781         if (result) {
4782                 pr_err("Couldn't enable device\n");
4783                 goto err_free_irq;
4784         }
4785
4786         spic_dev.bluetooth_power = -1;
4787         /* create device attributes */
4788         result = sony_pf_add();
4789         if (result)
4790                 goto err_disable_device;
4791
4792         result = sysfs_create_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
4793         if (result)
4794                 goto err_remove_pf;
4795
4796         pr_info("SPIC setup done.\n");
4797         return 0;
4798
4799 err_remove_pf:
4800         sony_pf_remove();
4801
4802 err_disable_device:
4803         sony_pic_disable(device);
4804
4805 err_free_irq:
4806         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
4807
4808 err_release_region:
4809         release_region(spic_dev.cur_ioport->io1.minimum,
4810                         spic_dev.cur_ioport->io1.address_length);
4811         if (spic_dev.cur_ioport->io2.minimum)
4812                 release_region(spic_dev.cur_ioport->io2.minimum,
4813                                 spic_dev.cur_ioport->io2.address_length);
4814
4815 err_remove_compat:
4816         sonypi_compat_exit();
4817
4818 err_remove_input:
4819         sony_laptop_remove_input();
4820
4821 err_free_resources:
4822         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
4823                 list_del(&io->list);
4824                 kfree(io);
4825         }
4826         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
4827                 list_del(&irq->list);
4828                 kfree(irq);
4829         }
4830         spic_dev.cur_ioport = NULL;
4831         spic_dev.cur_irq = NULL;
4832
4833         return result;
4834 }
4835
4836 #ifdef CONFIG_PM_SLEEP
4837 static int sony_pic_suspend(struct device *dev)
4838 {
4839         if (sony_pic_disable(to_acpi_device(dev)))
4840                 return -ENXIO;
4841         return 0;
4842 }
4843
4844 static int sony_pic_resume(struct device *dev)
4845 {
4846         sony_pic_enable(to_acpi_device(dev),
4847                         spic_dev.cur_ioport, spic_dev.cur_irq);
4848         return 0;
4849 }
4850 #endif
4851
4852 static SIMPLE_DEV_PM_OPS(sony_pic_pm, sony_pic_suspend, sony_pic_resume);
4853
4854 static const struct acpi_device_id sony_pic_device_ids[] = {
4855         {SONY_PIC_HID, 0},
4856         {"", 0},
4857 };
4858
4859 static struct acpi_driver sony_pic_driver = {
4860         .name = SONY_PIC_DRIVER_NAME,
4861         .class = SONY_PIC_CLASS,
4862         .ids = sony_pic_device_ids,
4863         .owner = THIS_MODULE,
4864         .ops = {
4865                 .add = sony_pic_add,
4866                 .remove = sony_pic_remove,
4867                 },
4868         .drv.pm = &sony_pic_pm,
4869 };
4870
4871 static const struct dmi_system_id sonypi_dmi_table[] __initconst = {
4872         {
4873                 .ident = "Sony Vaio",
4874                 .matches = {
4875                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
4876                         DMI_MATCH(DMI_PRODUCT_NAME, "PCG-"),
4877                 },
4878         },
4879         {
4880                 .ident = "Sony Vaio",
4881                 .matches = {
4882                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
4883                         DMI_MATCH(DMI_PRODUCT_NAME, "VGN-"),
4884                 },
4885         },
4886         { }
4887 };
4888
4889 static int __init sony_laptop_init(void)
4890 {
4891         int result;
4892
4893         if (!no_spic && dmi_check_system(sonypi_dmi_table)) {
4894                 result = acpi_bus_register_driver(&sony_pic_driver);
4895                 if (result) {
4896                         pr_err("Unable to register SPIC driver\n");
4897                         goto out;
4898                 }
4899                 spic_drv_registered = 1;
4900         }
4901
4902         result = acpi_bus_register_driver(&sony_nc_driver);
4903         if (result) {
4904                 pr_err("Unable to register SNC driver\n");
4905                 goto out_unregister_pic;
4906         }
4907
4908         return 0;
4909
4910 out_unregister_pic:
4911         if (spic_drv_registered)
4912                 acpi_bus_unregister_driver(&sony_pic_driver);
4913 out:
4914         return result;
4915 }
4916
4917 static void __exit sony_laptop_exit(void)
4918 {
4919         acpi_bus_unregister_driver(&sony_nc_driver);
4920         if (spic_drv_registered)
4921                 acpi_bus_unregister_driver(&sony_pic_driver);
4922 }
4923
4924 module_init(sony_laptop_init);
4925 module_exit(sony_laptop_exit);