drivers/platform/x86/sony-laptop.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * ACPI Sony Notebook Control Driver (SNC and SPIC)
   4  *
   5  * Copyright (C) 2004-2005 Stelian Pop <[email protected]>
   6  * Copyright (C) 2007-2009 Mattia Dongili <[email protected]>
   7  *
   8  * Parts of this driver inspired from asus_acpi.c and ibm_acpi.c
   9  * which are copyrighted by their respective authors.
  10  *
  11  * The SNY6001 driver part is based on the sonypi driver which includes
  12  * material from:
  13  *
  14  * Copyright (C) 2001-2005 Stelian Pop <[email protected]>
  15  *
  16  * Copyright (C) 2005 Narayanan R S <[email protected]>
  17  *
  18  * Copyright (C) 2001-2002 Alcôve <www.alcove.com>
  19  *
  20  * Copyright (C) 2001 Michael Ashley <[email protected]>
  21  *
  22  * Copyright (C) 2001 Junichi Morita <[email protected]>
  23  *
  24  * Copyright (C) 2000 Takaya Kinjo <[email protected]>
  25  *
  26  * Copyright (C) 2000 Andrew Tridgell <[email protected]>
  27  *
  28  * Earlier work by Werner Almesberger, Paul `Rusty' Russell and Paul Mackerras.
  29  */
  30
  31 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  32
  33 #include <linux/kernel.h>
  34 #include <linux/module.h>
  35 #include <linux/moduleparam.h>
  36 #include <linux/init.h>
  37 #include <linux/types.h>
  38 #include <linux/backlight.h>
  39 #include <linux/platform_device.h>
  40 #include <linux/err.h>
  41 #include <linux/dmi.h>
  42 #include <linux/pci.h>
  43 #include <linux/interrupt.h>
  44 #include <linux/delay.h>
  45 #include <linux/input.h>
  46 #include <linux/kfifo.h>
  47 #include <linux/workqueue.h>
  48 #include <linux/acpi.h>
  49 #include <linux/slab.h>
  50 #include <linux/sonypi.h>
  51 #include <linux/sony-laptop.h>
  52 #include <linux/rfkill.h>
  53 #ifdef CONFIG_SONYPI_COMPAT
  54 #include <linux/poll.h>
  55 #include <linux/miscdevice.h>
  56 #endif
  57 #include <linux/uaccess.h>
  58 #include <acpi/video.h>
  59
  60 #define dprintk(fmt, ...)                       \
  61 do {                                            \
  62         if (debug)                              \
  63                 pr_warn(fmt, ##__VA_ARGS__);    \
  64 } while (0)
  65
  66 #define SONY_NC_CLASS           "sony-nc"
  67 #define SONY_NC_HID             "SNY5001"
  68 #define SONY_NC_DRIVER_NAME     "Sony Notebook Control Driver"
  69
  70 #define SONY_PIC_CLASS          "sony-pic"
  71 #define SONY_PIC_HID            "SNY6001"
  72 #define SONY_PIC_DRIVER_NAME    "Sony Programmable IO Control Driver"
  73
  74 MODULE_AUTHOR("Stelian Pop, Mattia Dongili");
  75 MODULE_DESCRIPTION("Sony laptop extras driver (SPIC and SNC ACPI device)");
  76 MODULE_LICENSE("GPL");
  77
  78 static int debug;
  79 module_param(debug, int, 0);
  80 MODULE_PARM_DESC(debug, "set this to 1 (and RTFM) if you want to help "
  81                  "the development of this driver");
  82
  83 static int no_spic;             /* = 0 */
  84 module_param(no_spic, int, 0444);
  85 MODULE_PARM_DESC(no_spic,
  86                  "set this if you don't want to enable the SPIC device");
  87
  88 static int compat;              /* = 0 */
  89 module_param(compat, int, 0444);
  90 MODULE_PARM_DESC(compat,
  91                  "set this if you want to enable backward compatibility mode");
  92
  93 static unsigned long mask = 0xffffffff;
  94 module_param(mask, ulong, 0644);
  95 MODULE_PARM_DESC(mask,
  96                  "set this to the mask of event you want to enable (see doc)");
  97
  98 static int camera;              /* = 0 */
  99 module_param(camera, int, 0444);
 100 MODULE_PARM_DESC(camera,
 101                  "set this to 1 to enable Motion Eye camera controls "
 102                  "(only use it if you have a C1VE or C1VN model)");
 103
 104 #ifdef CONFIG_SONYPI_COMPAT
 105 static int minor = -1;
 106 module_param(minor, int, 0);
 107 MODULE_PARM_DESC(minor,
 108                  "minor number of the misc device for the SPIC compatibility code, "
 109                  "default is -1 (automatic)");
 110 #endif
 111
 112 static int kbd_backlight = -1;
 113 module_param(kbd_backlight, int, 0444);
 114 MODULE_PARM_DESC(kbd_backlight,
 115                  "set this to 0 to disable keyboard backlight, "
 116                  "1 to enable it with automatic control and 2 to have it always "
 117                  "on (default: no change from current value)");
 118
 119 static int kbd_backlight_timeout = -1;
 120 module_param(kbd_backlight_timeout, int, 0444);
 121 MODULE_PARM_DESC(kbd_backlight_timeout,
 122                  "meaningful values vary from 0 to 3 and their meaning depends "
 123                  "on the model (default: no change from current value)");
 124
 125 #ifdef CONFIG_PM_SLEEP
 126 static void sony_nc_thermal_resume(void);
 127 #endif
 128 static int sony_nc_kbd_backlight_setup(struct platform_device *pd,
 129                 unsigned int handle);
 130 static void sony_nc_kbd_backlight_cleanup(struct platform_device *pd,
 131                 unsigned int handle);
 132
 133 static int sony_nc_battery_care_setup(struct platform_device *pd,
 134                 unsigned int handle);
 135 static void sony_nc_battery_care_cleanup(struct platform_device *pd);
 136
 137 static int sony_nc_thermal_setup(struct platform_device *pd);
 138 static void sony_nc_thermal_cleanup(struct platform_device *pd);
 139
 140 static int sony_nc_lid_resume_setup(struct platform_device *pd,
 141                                     unsigned int handle);
 142 static void sony_nc_lid_resume_cleanup(struct platform_device *pd);
 143
 144 static int sony_nc_gfx_switch_setup(struct platform_device *pd,
 145                 unsigned int handle);
 146 static void sony_nc_gfx_switch_cleanup(struct platform_device *pd);
 147 static int __sony_nc_gfx_switch_status_get(void);
 148
 149 static int sony_nc_highspeed_charging_setup(struct platform_device *pd);
 150 static void sony_nc_highspeed_charging_cleanup(struct platform_device *pd);
 151
 152 static int sony_nc_lowbatt_setup(struct platform_device *pd);
 153 static void sony_nc_lowbatt_cleanup(struct platform_device *pd);
 154
 155 static int sony_nc_fanspeed_setup(struct platform_device *pd);
 156 static void sony_nc_fanspeed_cleanup(struct platform_device *pd);
 157
 158 static int sony_nc_usb_charge_setup(struct platform_device *pd);
 159 static void sony_nc_usb_charge_cleanup(struct platform_device *pd);
 160
 161 static int sony_nc_panelid_setup(struct platform_device *pd);
 162 static void sony_nc_panelid_cleanup(struct platform_device *pd);
 163
 164 static int sony_nc_smart_conn_setup(struct platform_device *pd);
 165 static void sony_nc_smart_conn_cleanup(struct platform_device *pd);
 166
 167 static int sony_nc_touchpad_setup(struct platform_device *pd,
 168                                   unsigned int handle);
 169 static void sony_nc_touchpad_cleanup(struct platform_device *pd);
 170
 171 enum sony_nc_rfkill {
 172         SONY_WIFI,
 173         SONY_BLUETOOTH,
 174         SONY_WWAN,
 175         SONY_WIMAX,
 176         N_SONY_RFKILL,
 177 };
 178
 179 static int sony_rfkill_handle;
 180 static struct rfkill *sony_rfkill_devices[N_SONY_RFKILL];
 181 static int sony_rfkill_address[N_SONY_RFKILL] = {0x300, 0x500, 0x700, 0x900};
 182 static int sony_nc_rfkill_setup(struct acpi_device *device,
 183                 unsigned int handle);
 184 static void sony_nc_rfkill_cleanup(void);
 185 static void sony_nc_rfkill_update(void);
 186
 187 /*********** Input Devices ***********/
 188
 189 #define SONY_LAPTOP_BUF_SIZE    128
 190 struct sony_laptop_input_s {
 191         atomic_t                users;
 192         struct input_dev        *jog_dev;
 193         struct input_dev        *key_dev;
 194         struct kfifo            fifo;
 195         spinlock_t              fifo_lock;
 196         struct timer_list       release_key_timer;
 197 };
 198
 199 static struct sony_laptop_input_s sony_laptop_input = {
 200         .users = ATOMIC_INIT(0),
 201 };
 202
 203 struct sony_laptop_keypress {
 204         struct input_dev *dev;
 205         int key;
 206 };
 207
 208 /* Correspondance table between sonypi events
 209  * and input layer indexes in the keymap
 210  */
 211 static const int sony_laptop_input_index[] = {
 212         -1,     /*  0 no event */
 213         -1,     /*  1 SONYPI_EVENT_JOGDIAL_DOWN */
 214         -1,     /*  2 SONYPI_EVENT_JOGDIAL_UP */
 215         -1,     /*  3 SONYPI_EVENT_JOGDIAL_DOWN_PRESSED */
 216         -1,     /*  4 SONYPI_EVENT_JOGDIAL_UP_PRESSED */
 217         -1,     /*  5 SONYPI_EVENT_JOGDIAL_PRESSED */
 218         -1,     /*  6 SONYPI_EVENT_JOGDIAL_RELEASED */
 219          0,     /*  7 SONYPI_EVENT_CAPTURE_PRESSED */
 220          1,     /*  8 SONYPI_EVENT_CAPTURE_RELEASED */
 221          2,     /*  9 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
 222          3,     /* 10 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
 223          4,     /* 11 SONYPI_EVENT_FNKEY_ESC */
 224          5,     /* 12 SONYPI_EVENT_FNKEY_F1 */
 225          6,     /* 13 SONYPI_EVENT_FNKEY_F2 */
 226          7,     /* 14 SONYPI_EVENT_FNKEY_F3 */
 227          8,     /* 15 SONYPI_EVENT_FNKEY_F4 */
 228          9,     /* 16 SONYPI_EVENT_FNKEY_F5 */
 229         10,     /* 17 SONYPI_EVENT_FNKEY_F6 */
 230         11,     /* 18 SONYPI_EVENT_FNKEY_F7 */
 231         12,     /* 19 SONYPI_EVENT_FNKEY_F8 */
 232         13,     /* 20 SONYPI_EVENT_FNKEY_F9 */
 233         14,     /* 21 SONYPI_EVENT_FNKEY_F10 */
 234         15,     /* 22 SONYPI_EVENT_FNKEY_F11 */
 235         16,     /* 23 SONYPI_EVENT_FNKEY_F12 */
 236         17,     /* 24 SONYPI_EVENT_FNKEY_1 */
 237         18,     /* 25 SONYPI_EVENT_FNKEY_2 */
 238         19,     /* 26 SONYPI_EVENT_FNKEY_D */
 239         20,     /* 27 SONYPI_EVENT_FNKEY_E */
 240         21,     /* 28 SONYPI_EVENT_FNKEY_F */
 241         22,     /* 29 SONYPI_EVENT_FNKEY_S */
 242         23,     /* 30 SONYPI_EVENT_FNKEY_B */
 243         24,     /* 31 SONYPI_EVENT_BLUETOOTH_PRESSED */
 244         25,     /* 32 SONYPI_EVENT_PKEY_P1 */
 245         26,     /* 33 SONYPI_EVENT_PKEY_P2 */
 246         27,     /* 34 SONYPI_EVENT_PKEY_P3 */
 247         28,     /* 35 SONYPI_EVENT_BACK_PRESSED */
 248         -1,     /* 36 SONYPI_EVENT_LID_CLOSED */
 249         -1,     /* 37 SONYPI_EVENT_LID_OPENED */
 250         29,     /* 38 SONYPI_EVENT_BLUETOOTH_ON */
 251         30,     /* 39 SONYPI_EVENT_BLUETOOTH_OFF */
 252         31,     /* 40 SONYPI_EVENT_HELP_PRESSED */
 253         32,     /* 41 SONYPI_EVENT_FNKEY_ONLY */
 254         33,     /* 42 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
 255         34,     /* 43 SONYPI_EVENT_JOGDIAL_FAST_UP */
 256         35,     /* 44 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
 257         36,     /* 45 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
 258         37,     /* 46 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
 259         38,     /* 47 SONYPI_EVENT_JOGDIAL_VFAST_UP */
 260         39,     /* 48 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
 261         40,     /* 49 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
 262         41,     /* 50 SONYPI_EVENT_ZOOM_PRESSED */
 263         42,     /* 51 SONYPI_EVENT_THUMBPHRASE_PRESSED */
 264         43,     /* 52 SONYPI_EVENT_MEYE_FACE */
 265         44,     /* 53 SONYPI_EVENT_MEYE_OPPOSITE */
 266         45,     /* 54 SONYPI_EVENT_MEMORYSTICK_INSERT */
 267         46,     /* 55 SONYPI_EVENT_MEMORYSTICK_EJECT */
 268         -1,     /* 56 SONYPI_EVENT_ANYBUTTON_RELEASED */
 269         -1,     /* 57 SONYPI_EVENT_BATTERY_INSERT */
 270         -1,     /* 58 SONYPI_EVENT_BATTERY_REMOVE */
 271         -1,     /* 59 SONYPI_EVENT_FNKEY_RELEASED */
 272         47,     /* 60 SONYPI_EVENT_WIRELESS_ON */
 273         48,     /* 61 SONYPI_EVENT_WIRELESS_OFF */
 274         49,     /* 62 SONYPI_EVENT_ZOOM_IN_PRESSED */
 275         50,     /* 63 SONYPI_EVENT_ZOOM_OUT_PRESSED */
 276         51,     /* 64 SONYPI_EVENT_CD_EJECT_PRESSED */
 277         52,     /* 65 SONYPI_EVENT_MODEKEY_PRESSED */
 278         53,     /* 66 SONYPI_EVENT_PKEY_P4 */
 279         54,     /* 67 SONYPI_EVENT_PKEY_P5 */
 280         55,     /* 68 SONYPI_EVENT_SETTINGKEY_PRESSED */
 281         56,     /* 69 SONYPI_EVENT_VOLUME_INC_PRESSED */
 282         57,     /* 70 SONYPI_EVENT_VOLUME_DEC_PRESSED */
 283         -1,     /* 71 SONYPI_EVENT_BRIGHTNESS_PRESSED */
 284         58,     /* 72 SONYPI_EVENT_MEDIA_PRESSED */
 285         59,     /* 72 SONYPI_EVENT_VENDOR_PRESSED */
 286 };
 287
 288 static int sony_laptop_input_keycode_map[] = {
 289         KEY_CAMERA,     /*  0 SONYPI_EVENT_CAPTURE_PRESSED */
 290         KEY_RESERVED,   /*  1 SONYPI_EVENT_CAPTURE_RELEASED */
 291         KEY_RESERVED,   /*  2 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
 292         KEY_RESERVED,   /*  3 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
 293         KEY_FN_ESC,     /*  4 SONYPI_EVENT_FNKEY_ESC */
 294         KEY_FN_F1,      /*  5 SONYPI_EVENT_FNKEY_F1 */
 295         KEY_FN_F2,      /*  6 SONYPI_EVENT_FNKEY_F2 */
 296         KEY_FN_F3,      /*  7 SONYPI_EVENT_FNKEY_F3 */
 297         KEY_FN_F4,      /*  8 SONYPI_EVENT_FNKEY_F4 */
 298         KEY_FN_F5,      /*  9 SONYPI_EVENT_FNKEY_F5 */
 299         KEY_FN_F6,      /* 10 SONYPI_EVENT_FNKEY_F6 */
 300         KEY_FN_F7,      /* 11 SONYPI_EVENT_FNKEY_F7 */
 301         KEY_FN_F8,      /* 12 SONYPI_EVENT_FNKEY_F8 */
 302         KEY_FN_F9,      /* 13 SONYPI_EVENT_FNKEY_F9 */
 303         KEY_FN_F10,     /* 14 SONYPI_EVENT_FNKEY_F10 */
 304         KEY_FN_F11,     /* 15 SONYPI_EVENT_FNKEY_F11 */
 305         KEY_FN_F12,     /* 16 SONYPI_EVENT_FNKEY_F12 */
 306         KEY_FN_1,       /* 17 SONYPI_EVENT_FNKEY_1 */
 307         KEY_FN_2,       /* 18 SONYPI_EVENT_FNKEY_2 */
 308         KEY_FN_D,       /* 19 SONYPI_EVENT_FNKEY_D */
 309         KEY_FN_E,       /* 20 SONYPI_EVENT_FNKEY_E */
 310         KEY_FN_F,       /* 21 SONYPI_EVENT_FNKEY_F */
 311         KEY_FN_S,       /* 22 SONYPI_EVENT_FNKEY_S */
 312         KEY_FN_B,       /* 23 SONYPI_EVENT_FNKEY_B */
 313         KEY_BLUETOOTH,  /* 24 SONYPI_EVENT_BLUETOOTH_PRESSED */
 314         KEY_PROG1,      /* 25 SONYPI_EVENT_PKEY_P1 */
 315         KEY_PROG2,      /* 26 SONYPI_EVENT_PKEY_P2 */
 316         KEY_PROG3,      /* 27 SONYPI_EVENT_PKEY_P3 */
 317         KEY_BACK,       /* 28 SONYPI_EVENT_BACK_PRESSED */
 318         KEY_BLUETOOTH,  /* 29 SONYPI_EVENT_BLUETOOTH_ON */
 319         KEY_BLUETOOTH,  /* 30 SONYPI_EVENT_BLUETOOTH_OFF */
 320         KEY_HELP,       /* 31 SONYPI_EVENT_HELP_PRESSED */
 321         KEY_FN,         /* 32 SONYPI_EVENT_FNKEY_ONLY */
 322         KEY_RESERVED,   /* 33 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
 323         KEY_RESERVED,   /* 34 SONYPI_EVENT_JOGDIAL_FAST_UP */
 324         KEY_RESERVED,   /* 35 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
 325         KEY_RESERVED,   /* 36 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
 326         KEY_RESERVED,   /* 37 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
 327         KEY_RESERVED,   /* 38 SONYPI_EVENT_JOGDIAL_VFAST_UP */
 328         KEY_RESERVED,   /* 39 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
 329         KEY_RESERVED,   /* 40 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
 330         KEY_ZOOM,       /* 41 SONYPI_EVENT_ZOOM_PRESSED */
 331         BTN_THUMB,      /* 42 SONYPI_EVENT_THUMBPHRASE_PRESSED */
 332         KEY_RESERVED,   /* 43 SONYPI_EVENT_MEYE_FACE */
 333         KEY_RESERVED,   /* 44 SONYPI_EVENT_MEYE_OPPOSITE */
 334         KEY_RESERVED,   /* 45 SONYPI_EVENT_MEMORYSTICK_INSERT */
 335         KEY_RESERVED,   /* 46 SONYPI_EVENT_MEMORYSTICK_EJECT */
 336         KEY_WLAN,       /* 47 SONYPI_EVENT_WIRELESS_ON */
 337         KEY_WLAN,       /* 48 SONYPI_EVENT_WIRELESS_OFF */
 338         KEY_ZOOMIN,     /* 49 SONYPI_EVENT_ZOOM_IN_PRESSED */
 339         KEY_ZOOMOUT,    /* 50 SONYPI_EVENT_ZOOM_OUT_PRESSED */
 340         KEY_EJECTCD,    /* 51 SONYPI_EVENT_CD_EJECT_PRESSED */
 341         KEY_F13,        /* 52 SONYPI_EVENT_MODEKEY_PRESSED */
 342         KEY_PROG4,      /* 53 SONYPI_EVENT_PKEY_P4 */
 343         KEY_F14,        /* 54 SONYPI_EVENT_PKEY_P5 */
 344         KEY_F15,        /* 55 SONYPI_EVENT_SETTINGKEY_PRESSED */
 345         KEY_VOLUMEUP,   /* 56 SONYPI_EVENT_VOLUME_INC_PRESSED */
 346         KEY_VOLUMEDOWN, /* 57 SONYPI_EVENT_VOLUME_DEC_PRESSED */
 347         KEY_MEDIA,      /* 58 SONYPI_EVENT_MEDIA_PRESSED */
 348         KEY_VENDOR,     /* 59 SONYPI_EVENT_VENDOR_PRESSED */
 349 };
 350
 351 /* release buttons after a short delay if pressed */
 352 static void do_sony_laptop_release_key(struct timer_list *unused)
 353 {
 354         struct sony_laptop_keypress kp;
 355         unsigned long flags;
 356
 357         spin_lock_irqsave(&sony_laptop_input.fifo_lock, flags);
 358
 359         if (kfifo_out(&sony_laptop_input.fifo,
 360                       (unsigned char *)&kp, sizeof(kp)) == sizeof(kp)) {
 361                 input_report_key(kp.dev, kp.key, 0);
 362                 input_sync(kp.dev);
 363         }
 364
 365         /* If there is something in the fifo schedule next release. */
 366         if (kfifo_len(&sony_laptop_input.fifo) != 0)
 367                 mod_timer(&sony_laptop_input.release_key_timer,
 368                           jiffies + msecs_to_jiffies(10));
 369
 370         spin_unlock_irqrestore(&sony_laptop_input.fifo_lock, flags);
 371 }
 372
 373 /* forward event to the input subsystem */
 374 static void sony_laptop_report_input_event(u8 event)
 375 {
 376         struct input_dev *jog_dev = sony_laptop_input.jog_dev;
 377         struct input_dev *key_dev = sony_laptop_input.key_dev;
 378         struct sony_laptop_keypress kp = { NULL };
 379         int scancode = -1;
 380
 381         if (event == SONYPI_EVENT_FNKEY_RELEASED ||
 382                         event == SONYPI_EVENT_ANYBUTTON_RELEASED) {
 383                 /* Nothing, not all VAIOs generate this event */
 384                 return;
 385         }
 386
 387         /* report events */
 388         switch (event) {
 389         /* jog_dev events */
 390         case SONYPI_EVENT_JOGDIAL_UP:
 391         case SONYPI_EVENT_JOGDIAL_UP_PRESSED:
 392                 input_report_rel(jog_dev, REL_WHEEL, 1);
 393                 input_sync(jog_dev);
 394                 return;
 395
 396         case SONYPI_EVENT_JOGDIAL_DOWN:
 397         case SONYPI_EVENT_JOGDIAL_DOWN_PRESSED:
 398                 input_report_rel(jog_dev, REL_WHEEL, -1);
 399                 input_sync(jog_dev);
 400                 return;
 401
 402         /* key_dev events */
 403         case SONYPI_EVENT_JOGDIAL_PRESSED:
 404                 kp.key = BTN_MIDDLE;
 405                 kp.dev = jog_dev;
 406                 break;
 407
 408         default:
 409                 if (event >= ARRAY_SIZE(sony_laptop_input_index)) {
 410                         dprintk("sony_laptop_report_input_event, event not known: %d\n", event);
 411                         break;
 412                 }
 413                 if ((scancode = sony_laptop_input_index[event]) != -1) {
 414                         kp.key = sony_laptop_input_keycode_map[scancode];
 415                         if (kp.key != KEY_UNKNOWN)
 416                                 kp.dev = key_dev;
 417                 }
 418                 break;
 419         }
 420
 421         if (kp.dev) {
 422                 /* if we have a scancode we emit it so we can always
 423                     remap the key */
 424                 if (scancode != -1)
 425                         input_event(kp.dev, EV_MSC, MSC_SCAN, scancode);
 426                 input_report_key(kp.dev, kp.key, 1);
 427                 input_sync(kp.dev);
 428
 429                 /* schedule key release */
 430                 kfifo_in_locked(&sony_laptop_input.fifo,
 431                                 (unsigned char *)&kp, sizeof(kp),
 432                                 &sony_laptop_input.fifo_lock);
 433                 mod_timer(&sony_laptop_input.release_key_timer,
 434                           jiffies + msecs_to_jiffies(10));
 435         } else
 436                 dprintk("unknown input event %.2x\n", event);
 437 }
 438
 439 static int sony_laptop_setup_input(struct acpi_device *acpi_device)
 440 {
 441         struct input_dev *jog_dev;
 442         struct input_dev *key_dev;
 443         int i;
 444         int error;
 445
 446         /* don't run again if already initialized */
 447         if (atomic_add_return(1, &sony_laptop_input.users) > 1)
 448                 return 0;
 449
 450         /* kfifo */
 451         spin_lock_init(&sony_laptop_input.fifo_lock);
 452         error = kfifo_alloc(&sony_laptop_input.fifo,
 453                             SONY_LAPTOP_BUF_SIZE, GFP_KERNEL);
 454         if (error) {
 455                 pr_err("kfifo_alloc failed\n");
 456                 goto err_dec_users;
 457         }
 458
 459         timer_setup(&sony_laptop_input.release_key_timer,
 460                     do_sony_laptop_release_key, 0);
 461
 462         /* input keys */
 463         key_dev = input_allocate_device();
 464         if (!key_dev) {
 465                 error = -ENOMEM;
 466                 goto err_free_kfifo;
 467         }
 468
 469         key_dev->name = "Sony Vaio Keys";
 470         key_dev->id.bustype = BUS_ISA;
 471         key_dev->id.vendor = PCI_VENDOR_ID_SONY;
 472         key_dev->dev.parent = &acpi_device->dev;
 473
 474         /* Initialize the Input Drivers: special keys */
 475         input_set_capability(key_dev, EV_MSC, MSC_SCAN);
 476
 477         __set_bit(EV_KEY, key_dev->evbit);
 478         key_dev->keycodesize = sizeof(sony_laptop_input_keycode_map[0]);
 479         key_dev->keycodemax = ARRAY_SIZE(sony_laptop_input_keycode_map);
 480         key_dev->keycode = &sony_laptop_input_keycode_map;
 481         for (i = 0; i < ARRAY_SIZE(sony_laptop_input_keycode_map); i++)
 482                 __set_bit(sony_laptop_input_keycode_map[i], key_dev->keybit);
 483         __clear_bit(KEY_RESERVED, key_dev->keybit);
 484
 485         error = input_register_device(key_dev);
 486         if (error)
 487                 goto err_free_keydev;
 488
 489         sony_laptop_input.key_dev = key_dev;
 490
 491         /* jogdial */
 492         jog_dev = input_allocate_device();
 493         if (!jog_dev) {
 494                 error = -ENOMEM;
 495                 goto err_unregister_keydev;
 496         }
 497
 498         jog_dev->name = "Sony Vaio Jogdial";
 499         jog_dev->id.bustype = BUS_ISA;
 500         jog_dev->id.vendor = PCI_VENDOR_ID_SONY;
 501         jog_dev->dev.parent = &acpi_device->dev;
 502
 503         input_set_capability(jog_dev, EV_KEY, BTN_MIDDLE);
 504         input_set_capability(jog_dev, EV_REL, REL_WHEEL);
 505
 506         error = input_register_device(jog_dev);
 507         if (error)
 508                 goto err_free_jogdev;
 509
 510         sony_laptop_input.jog_dev = jog_dev;
 511
 512         return 0;
 513
 514 err_free_jogdev:
 515         input_free_device(jog_dev);
 516
 517 err_unregister_keydev:
 518         input_unregister_device(key_dev);
 519         /* to avoid kref underflow below at input_free_device */
 520         key_dev = NULL;
 521
 522 err_free_keydev:
 523         input_free_device(key_dev);
 524
 525 err_free_kfifo:
 526         kfifo_free(&sony_laptop_input.fifo);
 527
 528 err_dec_users:
 529         atomic_dec(&sony_laptop_input.users);
 530         return error;
 531 }
 532
 533 static void sony_laptop_remove_input(void)
 534 {
 535         struct sony_laptop_keypress kp = { NULL };
 536
 537         /* Cleanup only after the last user has gone */
 538         if (!atomic_dec_and_test(&sony_laptop_input.users))
 539                 return;
 540
 541         del_timer_sync(&sony_laptop_input.release_key_timer);
 542
 543         /*
 544          * Generate key-up events for remaining keys. Note that we don't
 545          * need locking since nobody is adding new events to the kfifo.
 546          */
 547         while (kfifo_out(&sony_laptop_input.fifo,
 548                          (unsigned char *)&kp, sizeof(kp)) == sizeof(kp)) {
 549                 input_report_key(kp.dev, kp.key, 0);
 550                 input_sync(kp.dev);
 551         }
 552
 553         /* destroy input devs */
 554         input_unregister_device(sony_laptop_input.key_dev);
 555         sony_laptop_input.key_dev = NULL;
 556
 557         if (sony_laptop_input.jog_dev) {
 558                 input_unregister_device(sony_laptop_input.jog_dev);
 559                 sony_laptop_input.jog_dev = NULL;
 560         }
 561
 562         kfifo_free(&sony_laptop_input.fifo);
 563 }
 564
 565 /*********** Platform Device ***********/
 566
 567 static atomic_t sony_pf_users = ATOMIC_INIT(0);
 568 static struct platform_driver sony_pf_driver = {
 569         .driver = {
 570                    .name = "sony-laptop",
 571                    }
 572 };
 573 static struct platform_device *sony_pf_device;
 574
 575 static int sony_pf_add(void)
 576 {
 577         int ret = 0;
 578
 579         /* don't run again if already initialized */
 580         if (atomic_add_return(1, &sony_pf_users) > 1)
 581                 return 0;
 582
 583         ret = platform_driver_register(&sony_pf_driver);
 584         if (ret)
 585                 goto out;
 586
 587         sony_pf_device = platform_device_alloc("sony-laptop", PLATFORM_DEVID_NONE);
 588         if (!sony_pf_device) {
 589                 ret = -ENOMEM;
 590                 goto out_platform_registered;
 591         }
 592
 593         ret = platform_device_add(sony_pf_device);
 594         if (ret)
 595                 goto out_platform_alloced;
 596
 597         return 0;
 598
 599       out_platform_alloced:
 600         platform_device_put(sony_pf_device);
 601         sony_pf_device = NULL;
 602       out_platform_registered:
 603         platform_driver_unregister(&sony_pf_driver);
 604       out:
 605         atomic_dec(&sony_pf_users);
 606         return ret;
 607 }
 608
 609 static void sony_pf_remove(void)
 610 {
 611         /* deregister only after the last user has gone */
 612         if (!atomic_dec_and_test(&sony_pf_users))
 613                 return;
 614
 615         platform_device_unregister(sony_pf_device);
 616         platform_driver_unregister(&sony_pf_driver);
 617 }
 618
 619 /*********** SNC (SNY5001) Device ***********/
 620
 621 /* the device uses 1-based values, while the backlight subsystem uses
 622    0-based values */
 623 #define SONY_MAX_BRIGHTNESS     8
 624
 625 #define SNC_VALIDATE_IN         0
 626 #define SNC_VALIDATE_OUT        1
 627
 628 static ssize_t sony_nc_sysfs_show(struct device *, struct device_attribute *,
 629                               char *);
 630 static ssize_t sony_nc_sysfs_store(struct device *, struct device_attribute *,
 631                                const char *, size_t);
 632 static int boolean_validate(const int, const int);
 633 static int brightness_default_validate(const int, const int);
 634
 635 struct sony_nc_value {
 636         char *name;             /* name of the entry */
 637         char **acpiget;         /* names of the ACPI get function */
 638         char **acpiset;         /* names of the ACPI set function */
 639         int (*validate)(const int, const int);  /* input/output validation */
 640         int value;              /* current setting */
 641         int valid;              /* Has ever been set */
 642         int debug;              /* active only in debug mode ? */
 643         struct device_attribute devattr;        /* sysfs attribute */
 644 };
 645
 646 #define SNC_HANDLE_NAMES(_name, _values...) \
 647         static char *snc_##_name[] = { _values, NULL }
 648
 649 #define SNC_HANDLE(_name, _getters, _setters, _validate, _debug) \
 650         { \
 651                 .name           = __stringify(_name), \
 652                 .acpiget        = _getters, \
 653                 .acpiset        = _setters, \
 654                 .validate       = _validate, \
 655                 .debug          = _debug, \
 656                 .devattr        = __ATTR(_name, 0, sony_nc_sysfs_show, sony_nc_sysfs_store), \
 657         }
 658
 659 #define SNC_HANDLE_NULL { .name = NULL }
 660
 661 SNC_HANDLE_NAMES(fnkey_get, "GHKE");
 662
 663 SNC_HANDLE_NAMES(brightness_def_get, "GPBR");
 664 SNC_HANDLE_NAMES(brightness_def_set, "SPBR");
 665
 666 SNC_HANDLE_NAMES(cdpower_get, "GCDP");
 667 SNC_HANDLE_NAMES(cdpower_set, "SCDP", "CDPW");
 668
 669 SNC_HANDLE_NAMES(audiopower_get, "GAZP");
 670 SNC_HANDLE_NAMES(audiopower_set, "AZPW");
 671
 672 SNC_HANDLE_NAMES(lanpower_get, "GLNP");
 673 SNC_HANDLE_NAMES(lanpower_set, "LNPW");
 674
 675 SNC_HANDLE_NAMES(lidstate_get, "GLID");
 676
 677 SNC_HANDLE_NAMES(indicatorlamp_get, "GILS");
 678 SNC_HANDLE_NAMES(indicatorlamp_set, "SILS");
 679
 680 SNC_HANDLE_NAMES(gainbass_get, "GMGB");
 681 SNC_HANDLE_NAMES(gainbass_set, "CMGB");
 682
 683 SNC_HANDLE_NAMES(PID_get, "GPID");
 684
 685 SNC_HANDLE_NAMES(CTR_get, "GCTR");
 686 SNC_HANDLE_NAMES(CTR_set, "SCTR");
 687
 688 SNC_HANDLE_NAMES(PCR_get, "GPCR");
 689 SNC_HANDLE_NAMES(PCR_set, "SPCR");
 690
 691 SNC_HANDLE_NAMES(CMI_get, "GCMI");
 692 SNC_HANDLE_NAMES(CMI_set, "SCMI");
 693
 694 static struct sony_nc_value sony_nc_values[] = {
 695         SNC_HANDLE(brightness_default, snc_brightness_def_get,
 696                         snc_brightness_def_set, brightness_default_validate, 0),
 697         SNC_HANDLE(fnkey, snc_fnkey_get, NULL, NULL, 0),
 698         SNC_HANDLE(cdpower, snc_cdpower_get, snc_cdpower_set, boolean_validate, 0),
 699         SNC_HANDLE(audiopower, snc_audiopower_get, snc_audiopower_set,
 700                         boolean_validate, 0),
 701         SNC_HANDLE(lanpower, snc_lanpower_get, snc_lanpower_set,
 702                         boolean_validate, 1),
 703         SNC_HANDLE(lidstate, snc_lidstate_get, NULL,
 704                         boolean_validate, 0),
 705         SNC_HANDLE(indicatorlamp, snc_indicatorlamp_get, snc_indicatorlamp_set,
 706                         boolean_validate, 0),
 707         SNC_HANDLE(gainbass, snc_gainbass_get, snc_gainbass_set,
 708                         boolean_validate, 0),
 709         /* unknown methods */
 710         SNC_HANDLE(PID, snc_PID_get, NULL, NULL, 1),
 711         SNC_HANDLE(CTR, snc_CTR_get, snc_CTR_set, NULL, 1),
 712         SNC_HANDLE(PCR, snc_PCR_get, snc_PCR_set, NULL, 1),
 713         SNC_HANDLE(CMI, snc_CMI_get, snc_CMI_set, NULL, 1),
 714         SNC_HANDLE_NULL
 715 };
 716
 717 static acpi_handle sony_nc_acpi_handle;
 718 static struct acpi_device *sony_nc_acpi_device = NULL;
 719
 720 /*
 721  * acpi_evaluate_object wrappers
 722  * all useful calls into SNC methods take one or zero parameters and return
 723  * integers or arrays.
 724  */
 725 static union acpi_object *__call_snc_method(acpi_handle handle, char *method,
 726                 u64 *value)
 727 {
 728         union acpi_object *result = NULL;
 729         struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
 730         acpi_status status;
 731
 732         if (value) {
 733                 struct acpi_object_list params;
 734                 union acpi_object in;
 735                 in.type = ACPI_TYPE_INTEGER;
 736                 in.integer.value = *value;
 737                 params.count = 1;
 738                 params.pointer = &in;
 739                 status = acpi_evaluate_object(handle, method, &params, &output);
 740                 dprintk("__call_snc_method: [%s:0x%.8x%.8x]\n", method,
 741                                 (unsigned int)(*value >> 32),
 742                                 (unsigned int)*value & 0xffffffff);
 743         } else {
 744                 status = acpi_evaluate_object(handle, method, NULL, &output);
 745                 dprintk("__call_snc_method: [%s]\n", method);
 746         }
 747
 748         if (ACPI_FAILURE(status)) {
 749                 pr_err("Failed to evaluate [%s]\n", method);
 750                 return NULL;
 751         }
 752
 753         result = (union acpi_object *) output.pointer;
 754         if (!result)
 755                 dprintk("No return object [%s]\n", method);
 756
 757         return result;
 758 }
 759
 760 #define MIN(a, b)       (a > b ? b : a)
 761 static int sony_nc_buffer_call(acpi_handle handle, char *name, u64 *value,
 762                 void *buffer, size_t buflen)
 763 {
 764         int ret = 0;
 765         size_t len;
 766         union acpi_object *object = __call_snc_method(handle, name, value);
 767
 768         if (!object)
 769                 return -EINVAL;
 770
 771         if (!buffer) {
 772                 /* do nothing */
 773         } else if (object->type == ACPI_TYPE_BUFFER) {
 774                 len = MIN(buflen, object->buffer.length);
 775                 memset(buffer, 0, buflen);
 776                 memcpy(buffer, object->buffer.pointer, len);
 777
 778         } else if (object->type == ACPI_TYPE_INTEGER) {
 779                 len = MIN(buflen, sizeof(object->integer.value));
 780                 memset(buffer, 0, buflen);
 781                 memcpy(buffer, &object->integer.value, len);
 782
 783         } else {
 784                 pr_warn("Unexpected acpi_object: 0x%x\n", object->type);
 785                 ret = -EINVAL;
 786         }
 787
 788         kfree(object);
 789         return ret;
 790 }
 791
 792 static int sony_nc_int_call(acpi_handle handle, char *name, int *value, int
 793                 *result)
 794 {
 795         int ret;
 796
 797         if (value) {
 798                 u64 v = *value;
 799
 800                 ret = sony_nc_buffer_call(handle, name, &v, result,
 801                                 sizeof(*result));
 802         } else {
 803                 ret =  sony_nc_buffer_call(handle, name, NULL, result,
 804                                 sizeof(*result));
 805         }
 806         return ret;
 807 }
 808
 809 struct sony_nc_handles {
 810         u16 cap[0x10];
 811         struct device_attribute devattr;
 812 };
 813
 814 static struct sony_nc_handles *handles;
 815
 816 static ssize_t sony_nc_handles_show(struct device *dev,
 817                 struct device_attribute *attr, char *buffer)
 818 {
 819         ssize_t len = 0;
 820         int i;
 821
 822         for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
 823                 len += sysfs_emit_at(buffer, len, "0x%.4x ", handles->cap[i]);
 824         }
 825         len += sysfs_emit_at(buffer, len, "\n");
 826
 827         return len;
 828 }
 829
 830 static int sony_nc_handles_setup(struct platform_device *pd)
 831 {
 832         int i, r, result, arg;
 833
 834         handles = kzalloc(sizeof(*handles), GFP_KERNEL);
 835         if (!handles)
 836                 return -ENOMEM;
 837
 838         for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
 839                 arg = i + 0x20;
 840                 r = sony_nc_int_call(sony_nc_acpi_handle, "SN00", &arg,
 841                                         &result);
 842                 if (!r) {
 843                         dprintk("caching handle 0x%.4x (offset: 0x%.2x)\n",
 844                                         result, i);
 845                         handles->cap[i] = result;
 846                 }
 847         }
 848
 849         if (debug) {
 850                 sysfs_attr_init(&handles->devattr.attr);
 851                 handles->devattr.attr.name = "handles";
 852                 handles->devattr.attr.mode = S_IRUGO;
 853                 handles->devattr.show = sony_nc_handles_show;
 854
 855                 /* allow reading capabilities via sysfs */
 856                 if (device_create_file(&pd->dev, &handles->devattr)) {
 857                         kfree(handles);
 858                         handles = NULL;
 859                         return -1;
 860                 }
 861         }
 862
 863         return 0;
 864 }
 865
 866 static int sony_nc_handles_cleanup(struct platform_device *pd)
 867 {
 868         if (handles) {
 869                 if (debug)
 870                         device_remove_file(&pd->dev, &handles->devattr);
 871                 kfree(handles);
 872                 handles = NULL;
 873         }
 874         return 0;
 875 }
 876
 877 static int sony_find_snc_handle(int handle)
 878 {
 879         int i;
 880
 881         /* not initialized yet, return early */
 882         if (!handles || !handle)
 883                 return -EINVAL;
 884
 885         for (i = 0; i < 0x10; i++) {
 886                 if (handles->cap[i] == handle) {
 887                         dprintk("found handle 0x%.4x (offset: 0x%.2x)\n",
 888                                         handle, i);
 889                         return i;
 890                 }
 891         }
 892         dprintk("handle 0x%.4x not found\n", handle);
 893         return -EINVAL;
 894 }
 895
 896 static int sony_call_snc_handle(int handle, int argument, int *result)
 897 {
 898         int arg, ret = 0;
 899         int offset = sony_find_snc_handle(handle);
 900
 901         if (offset < 0)
 902                 return offset;
 903
 904         arg = offset | argument;
 905         ret = sony_nc_int_call(sony_nc_acpi_handle, "SN07", &arg, result);
 906         dprintk("called SN07 with 0x%.4x (result: 0x%.4x)\n", arg, *result);
 907         return ret;
 908 }
 909
 910 /*
 911  * sony_nc_values input/output validate functions
 912  */
 913
 914 /* brightness_default_validate:
 915  *
 916  * manipulate input output values to keep consistency with the
 917  * backlight framework for which brightness values are 0-based.
 918  */
 919 static int brightness_default_validate(const int direction, const int value)
 920 {
 921         switch (direction) {
 922                 case SNC_VALIDATE_OUT:
 923                         return value - 1;
 924                 case SNC_VALIDATE_IN:
 925                         if (value >= 0 && value < SONY_MAX_BRIGHTNESS)
 926                                 return value + 1;
 927         }
 928         return -EINVAL;
 929 }
 930
 931 /* boolean_validate:
 932  *
 933  * on input validate boolean values 0/1, on output just pass the
 934  * received value.
 935  */
 936 static int boolean_validate(const int direction, const int value)
 937 {
 938         if (direction == SNC_VALIDATE_IN) {
 939                 if (value != 0 && value != 1)
 940                         return -EINVAL;
 941         }
 942         return value;
 943 }
 944
 945 /*
 946  * Sysfs show/store common to all sony_nc_values
 947  */
 948 static ssize_t sony_nc_sysfs_show(struct device *dev, struct device_attribute *attr,
 949                               char *buffer)
 950 {
 951         int value, ret = 0;
 952         struct sony_nc_value *item =
 953             container_of(attr, struct sony_nc_value, devattr);
 954
 955         if (!*item->acpiget)
 956                 return -EIO;
 957
 958         ret = sony_nc_int_call(sony_nc_acpi_handle, *item->acpiget, NULL,
 959                                 &value);
 960         if (ret < 0)
 961                 return -EIO;
 962
 963         if (item->validate)
 964                 value = item->validate(SNC_VALIDATE_OUT, value);
 965
 966         return sysfs_emit(buffer, "%d\n", value);
 967 }
 968
 969 static ssize_t sony_nc_sysfs_store(struct device *dev,
 970                                struct device_attribute *attr,
 971                                const char *buffer, size_t count)
 972 {
 973         int value;
 974         int ret = 0;
 975         struct sony_nc_value *item =
 976             container_of(attr, struct sony_nc_value, devattr);
 977
 978         if (!item->acpiset)
 979                 return -EIO;
 980
 981         if (count > 31)
 982                 return -EINVAL;
 983
 984         if (kstrtoint(buffer, 10, &value))
 985                 return -EINVAL;
 986
 987         if (item->validate)
 988                 value = item->validate(SNC_VALIDATE_IN, value);
 989
 990         if (value < 0)
 991                 return value;
 992
 993         ret = sony_nc_int_call(sony_nc_acpi_handle, *item->acpiset,
 994                                &value, NULL);
 995         if (ret < 0)
 996                 return -EIO;
 997
 998         item->value = value;
 999         item->valid = 1;
1000         return count;
1001 }
1002
1003
1004 /*
1005  * Backlight device
1006  */
1007 struct sony_backlight_props {
1008         struct backlight_device *dev;
1009         int                     handle;
1010         int                     cmd_base;
1011         u8                      offset;
1012         u8                      maxlvl;
1013 };
1014 static struct sony_backlight_props sony_bl_props;
1015
1016 static int sony_backlight_update_status(struct backlight_device *bd)
1017 {
1018         int arg = bd->props.brightness + 1;
1019         return sony_nc_int_call(sony_nc_acpi_handle, "SBRT", &arg, NULL);
1020 }
1021
1022 static int sony_backlight_get_brightness(struct backlight_device *bd)
1023 {
1024         int value;
1025
1026         if (sony_nc_int_call(sony_nc_acpi_handle, "GBRT", NULL, &value))
1027                 return 0;
1028         /* brightness levels are 1-based, while backlight ones are 0-based */
1029         return value - 1;
1030 }
1031
1032 static int sony_nc_get_brightness_ng(struct backlight_device *bd)
1033 {
1034         int result;
1035         struct sony_backlight_props *sdev =
1036                 (struct sony_backlight_props *)bl_get_data(bd);
1037
1038         sony_call_snc_handle(sdev->handle, sdev->cmd_base + 0x100, &result);
1039
1040         return (result & 0xff) - sdev->offset;
1041 }
1042
1043 static int sony_nc_update_status_ng(struct backlight_device *bd)
1044 {
1045         int value, result;
1046         struct sony_backlight_props *sdev =
1047                 (struct sony_backlight_props *)bl_get_data(bd);
1048
1049         value = bd->props.brightness + sdev->offset;
1050         if (sony_call_snc_handle(sdev->handle, sdev->cmd_base | (value << 0x10),
1051                                 &result))
1052                 return -EIO;
1053
1054         return value;
1055 }
1056
1057 static const struct backlight_ops sony_backlight_ops = {
1058         .options = BL_CORE_SUSPENDRESUME,
1059         .update_status = sony_backlight_update_status,
1060         .get_brightness = sony_backlight_get_brightness,
1061 };
1062 static const struct backlight_ops sony_backlight_ng_ops = {
1063         .options = BL_CORE_SUSPENDRESUME,
1064         .update_status = sony_nc_update_status_ng,
1065         .get_brightness = sony_nc_get_brightness_ng,
1066 };
1067
1068 /*
1069  * New SNC-only Vaios event mapping to driver known keys
1070  */
1071 struct sony_nc_event {
1072         u8      data;
1073         u8      event;
1074 };
1075
1076 static struct sony_nc_event sony_100_events[] = {
1077         { 0x90, SONYPI_EVENT_PKEY_P1 },
1078         { 0x10, SONYPI_EVENT_ANYBUTTON_RELEASED },
1079         { 0x91, SONYPI_EVENT_PKEY_P2 },
1080         { 0x11, SONYPI_EVENT_ANYBUTTON_RELEASED },
1081         { 0x81, SONYPI_EVENT_FNKEY_F1 },
1082         { 0x01, SONYPI_EVENT_FNKEY_RELEASED },
1083         { 0x82, SONYPI_EVENT_FNKEY_F2 },
1084         { 0x02, SONYPI_EVENT_FNKEY_RELEASED },
1085         { 0x83, SONYPI_EVENT_FNKEY_F3 },
1086         { 0x03, SONYPI_EVENT_FNKEY_RELEASED },
1087         { 0x84, SONYPI_EVENT_FNKEY_F4 },
1088         { 0x04, SONYPI_EVENT_FNKEY_RELEASED },
1089         { 0x85, SONYPI_EVENT_FNKEY_F5 },
1090         { 0x05, SONYPI_EVENT_FNKEY_RELEASED },
1091         { 0x86, SONYPI_EVENT_FNKEY_F6 },
1092         { 0x06, SONYPI_EVENT_FNKEY_RELEASED },
1093         { 0x87, SONYPI_EVENT_FNKEY_F7 },
1094         { 0x07, SONYPI_EVENT_FNKEY_RELEASED },
1095         { 0x88, SONYPI_EVENT_FNKEY_F8 },
1096         { 0x08, SONYPI_EVENT_FNKEY_RELEASED },
1097         { 0x89, SONYPI_EVENT_FNKEY_F9 },
1098         { 0x09, SONYPI_EVENT_FNKEY_RELEASED },
1099         { 0x8A, SONYPI_EVENT_FNKEY_F10 },
1100         { 0x0A, SONYPI_EVENT_FNKEY_RELEASED },
1101         { 0x8B, SONYPI_EVENT_FNKEY_F11 },
1102         { 0x0B, SONYPI_EVENT_FNKEY_RELEASED },
1103         { 0x8C, SONYPI_EVENT_FNKEY_F12 },
1104         { 0x0C, SONYPI_EVENT_FNKEY_RELEASED },
1105         { 0x9d, SONYPI_EVENT_ZOOM_PRESSED },
1106         { 0x1d, SONYPI_EVENT_ANYBUTTON_RELEASED },
1107         { 0x9f, SONYPI_EVENT_CD_EJECT_PRESSED },
1108         { 0x1f, SONYPI_EVENT_ANYBUTTON_RELEASED },
1109         { 0xa1, SONYPI_EVENT_MEDIA_PRESSED },
1110         { 0x21, SONYPI_EVENT_ANYBUTTON_RELEASED },
1111         { 0xa4, SONYPI_EVENT_CD_EJECT_PRESSED },
1112         { 0x24, SONYPI_EVENT_ANYBUTTON_RELEASED },
1113         { 0xa5, SONYPI_EVENT_VENDOR_PRESSED },
1114         { 0x25, SONYPI_EVENT_ANYBUTTON_RELEASED },
1115         { 0xa6, SONYPI_EVENT_HELP_PRESSED },
1116         { 0x26, SONYPI_EVENT_ANYBUTTON_RELEASED },
1117         { 0xa8, SONYPI_EVENT_FNKEY_1 },
1118         { 0x28, SONYPI_EVENT_ANYBUTTON_RELEASED },
1119         { 0, 0 },
1120 };
1121
1122 static struct sony_nc_event sony_127_events[] = {
1123         { 0x81, SONYPI_EVENT_MODEKEY_PRESSED },
1124         { 0x01, SONYPI_EVENT_ANYBUTTON_RELEASED },
1125         { 0x82, SONYPI_EVENT_PKEY_P1 },
1126         { 0x02, SONYPI_EVENT_ANYBUTTON_RELEASED },
1127         { 0x83, SONYPI_EVENT_PKEY_P2 },
1128         { 0x03, SONYPI_EVENT_ANYBUTTON_RELEASED },
1129         { 0x84, SONYPI_EVENT_PKEY_P3 },
1130         { 0x04, SONYPI_EVENT_ANYBUTTON_RELEASED },
1131         { 0x85, SONYPI_EVENT_PKEY_P4 },
1132         { 0x05, SONYPI_EVENT_ANYBUTTON_RELEASED },
1133         { 0x86, SONYPI_EVENT_PKEY_P5 },
1134         { 0x06, SONYPI_EVENT_ANYBUTTON_RELEASED },
1135         { 0x87, SONYPI_EVENT_SETTINGKEY_PRESSED },
1136         { 0x07, SONYPI_EVENT_ANYBUTTON_RELEASED },
1137         { 0, 0 },
1138 };
1139
1140 static int sony_nc_hotkeys_decode(u32 event, unsigned int handle)
1141 {
1142         int ret = -EINVAL;
1143         unsigned int result = 0;
1144         struct sony_nc_event *key_event;
1145
1146         if (sony_call_snc_handle(handle, 0x200, &result)) {
1147                 dprintk("Unable to decode event 0x%.2x 0x%.2x\n", handle,
1148                                 event);
1149                 return -EINVAL;
1150         }
1151
1152         result &= 0xFF;
1153
1154         if (handle == 0x0100)
1155                 key_event = sony_100_events;
1156         else
1157                 key_event = sony_127_events;
1158
1159         for (; key_event->data; key_event++) {
1160                 if (key_event->data == result) {
1161                         ret = key_event->event;
1162                         break;
1163                 }
1164         }
1165
1166         if (!key_event->data)
1167                 pr_info("Unknown hotkey 0x%.2x/0x%.2x (handle 0x%.2x)\n",
1168                                 event, result, handle);
1169
1170         return ret;
1171 }
1172
1173 /*
1174  * ACPI callbacks
1175  */
1176 enum event_types {
1177         HOTKEY = 1,
1178         KILLSWITCH,
1179         GFX_SWITCH
1180 };
1181 static void sony_nc_notify(struct acpi_device *device, u32 event)
1182 {
1183         u32 real_ev = event;
1184         u8 ev_type = 0;
1185         int ret;
1186
1187         dprintk("sony_nc_notify, event: 0x%.2x\n", event);
1188
1189         if (event >= 0x90) {
1190                 unsigned int result = 0;
1191                 unsigned int arg = 0;
1192                 unsigned int handle = 0;
1193                 unsigned int offset = event - 0x90;
1194
1195                 if (offset >= ARRAY_SIZE(handles->cap)) {
1196                         pr_err("Event 0x%x outside of capabilities list\n",
1197                                         event);
1198                         return;
1199                 }
1200                 handle = handles->cap[offset];
1201
1202                 /* list of handles known for generating events */
1203                 switch (handle) {
1204                 /* hotkey event */
1205                 case 0x0100:
1206                 case 0x0127:
1207                         ev_type = HOTKEY;
1208                         ret = sony_nc_hotkeys_decode(event, handle);
1209
1210                         if (ret > 0) {
1211                                 sony_laptop_report_input_event(ret);
1212                                 real_ev = ret;
1213                         }
1214
1215                         break;
1216
1217                 /* wlan switch */
1218                 case 0x0124:
1219                 case 0x0135:
1220                         /* events on this handle are reported when the
1221                          * switch changes position or for battery
1222                          * events. We'll notify both of them but only
1223                          * update the rfkill device status when the
1224                          * switch is moved.
1225                          */
1226                         ev_type = KILLSWITCH;
1227                         sony_call_snc_handle(handle, 0x0100, &result);
1228                         real_ev = result & 0x03;
1229
1230                         /* hw switch event */
1231                         if (real_ev == 1)
1232                                 sony_nc_rfkill_update();
1233
1234                         break;
1235
1236                 case 0x0128:
1237                 case 0x0146:
1238                         /* Hybrid GFX switching */
1239                         sony_call_snc_handle(handle, 0x0000, &result);
1240                         dprintk("GFX switch event received (reason: %s)\n",
1241                                         (result == 0x1) ? "switch change" :
1242                                         (result == 0x2) ? "output switch" :
1243                                         (result == 0x3) ? "output switch" :
1244                                         "");
1245
1246                         ev_type = GFX_SWITCH;
1247                         real_ev = __sony_nc_gfx_switch_status_get();
1248                         break;
1249
1250                 case 0x015B:
1251                         /* Hybrid GFX switching SVS151290S */
1252                         ev_type = GFX_SWITCH;
1253                         real_ev = __sony_nc_gfx_switch_status_get();
1254                         break;
1255                 default:
1256                         dprintk("Unknown event 0x%x for handle 0x%x\n",
1257                                         event, handle);
1258                         break;
1259                 }
1260
1261                 /* clear the event (and the event reason when present) */
1262                 arg = 1 << offset;
1263                 sony_nc_int_call(sony_nc_acpi_handle, "SN05", &arg, &result);
1264
1265         } else {
1266                 /* old style event */
1267                 ev_type = HOTKEY;
1268                 sony_laptop_report_input_event(real_ev);
1269         }
1270         acpi_bus_generate_netlink_event(sony_nc_acpi_device->pnp.device_class,
1271                         dev_name(&sony_nc_acpi_device->dev), ev_type, real_ev);
1272 }
1273
1274 static acpi_status sony_walk_callback(acpi_handle handle, u32 level,
1275                                       void *context, void **return_value)
1276 {
1277         struct acpi_device_info *info;
1278
1279         if (ACPI_SUCCESS(acpi_get_object_info(handle, &info))) {
1280                 pr_warn("method: name: %4.4s, args %X\n",
1281                         (char *)&info->name, info->param_count);
1282
1283                 kfree(info);
1284         }
1285
1286         return AE_OK;
1287 }
1288
1289 /*
1290  * ACPI device
1291  */
1292 static void sony_nc_function_setup(struct acpi_device *device,
1293                 struct platform_device *pf_device)
1294 {
1295         unsigned int i, result, bitmask, arg;
1296
1297         if (!handles)
1298                 return;
1299
1300         /* setup found handles here */
1301         for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
1302                 unsigned int handle = handles->cap[i];
1303
1304                 if (!handle)
1305                         continue;
1306
1307                 dprintk("setting up handle 0x%.4x\n", handle);
1308
1309                 switch (handle) {
1310                 case 0x0100:
1311                 case 0x0101:
1312                 case 0x0127:
1313                         /* setup hotkeys */
1314                         sony_call_snc_handle(handle, 0, &result);
1315                         break;
1316                 case 0x0102:
1317                         /* setup hotkeys */
1318                         sony_call_snc_handle(handle, 0x100, &result);
1319                         break;
1320                 case 0x0105:
1321                 case 0x0148:
1322                         /* touchpad enable/disable */
1323                         result = sony_nc_touchpad_setup(pf_device, handle);
1324                         if (result)
1325                                 pr_err("couldn't set up touchpad control function (%d)\n",
1326                                                 result);
1327                         break;
1328                 case 0x0115:
1329                 case 0x0136:
1330                 case 0x013f:
1331                         result = sony_nc_battery_care_setup(pf_device, handle);
1332                         if (result)
1333                                 pr_err("couldn't set up battery care function (%d)\n",
1334                                                 result);
1335                         break;
1336                 case 0x0119:
1337                 case 0x015D:
1338                         result = sony_nc_lid_resume_setup(pf_device, handle);
1339                         if (result)
1340                                 pr_err("couldn't set up lid resume function (%d)\n",
1341                                                 result);
1342                         break;
1343                 case 0x0122:
1344                         result = sony_nc_thermal_setup(pf_device);
1345                         if (result)
1346                                 pr_err("couldn't set up thermal profile function (%d)\n",
1347                                                 result);
1348                         break;
1349                 case 0x0128:
1350                 case 0x0146:
1351                 case 0x015B:
1352                         result = sony_nc_gfx_switch_setup(pf_device, handle);
1353                         if (result)
1354                                 pr_err("couldn't set up GFX Switch status (%d)\n",
1355                                                 result);
1356                         break;
1357                 case 0x0131:
1358                         result = sony_nc_highspeed_charging_setup(pf_device);
1359                         if (result)
1360                                 pr_err("couldn't set up high speed charging function (%d)\n",
1361                                        result);
1362                         break;
1363                 case 0x0124:
1364                 case 0x0135:
1365                         result = sony_nc_rfkill_setup(device, handle);
1366                         if (result)
1367                                 pr_err("couldn't set up rfkill support (%d)\n",
1368                                                 result);
1369                         break;
1370                 case 0x0137:
1371                 case 0x0143:
1372                 case 0x014b:
1373                 case 0x014c:
1374                 case 0x0153:
1375                 case 0x0163:
1376                         result = sony_nc_kbd_backlight_setup(pf_device, handle);
1377                         if (result)
1378                                 pr_err("couldn't set up keyboard backlight function (%d)\n",
1379                                                 result);
1380                         break;
1381                 case 0x0121:
1382                         result = sony_nc_lowbatt_setup(pf_device);
1383                         if (result)
1384                                 pr_err("couldn't set up low battery function (%d)\n",
1385                                        result);
1386                         break;
1387                 case 0x0149:
1388                         result = sony_nc_fanspeed_setup(pf_device);
1389                         if (result)
1390                                 pr_err("couldn't set up fan speed function (%d)\n",
1391                                        result);
1392                         break;
1393                 case 0x0155:
1394                         result = sony_nc_usb_charge_setup(pf_device);
1395                         if (result)
1396                                 pr_err("couldn't set up USB charge support (%d)\n",
1397                                                 result);
1398                         break;
1399                 case 0x011D:
1400                         result = sony_nc_panelid_setup(pf_device);
1401                         if (result)
1402                                 pr_err("couldn't set up panel ID function (%d)\n",
1403                                        result);
1404                         break;
1405                 case 0x0168:
1406                         result = sony_nc_smart_conn_setup(pf_device);
1407                         if (result)
1408                                 pr_err("couldn't set up smart connect support (%d)\n",
1409                                                 result);
1410                         break;
1411                 default:
1412                         continue;
1413                 }
1414         }
1415
1416         /* Enable all events */
1417         arg = 0x10;
1418         if (!sony_nc_int_call(sony_nc_acpi_handle, "SN00", &arg, &bitmask))
1419                 sony_nc_int_call(sony_nc_acpi_handle, "SN02", &bitmask,
1420                                 &result);
1421 }
1422
1423 static void sony_nc_function_cleanup(struct platform_device *pd)
1424 {
1425         unsigned int i, result, bitmask, handle;
1426
1427         if (!handles)
1428                 return;
1429
1430         /* get enabled events and disable them */
1431         sony_nc_int_call(sony_nc_acpi_handle, "SN01", NULL, &bitmask);
1432         sony_nc_int_call(sony_nc_acpi_handle, "SN03", &bitmask, &result);
1433
1434         /* cleanup handles here */
1435         for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
1436
1437                 handle = handles->cap[i];
1438
1439                 if (!handle)
1440                         continue;
1441
1442                 switch (handle) {
1443                 case 0x0105:
1444                 case 0x0148:
1445                         sony_nc_touchpad_cleanup(pd);
1446                         break;
1447                 case 0x0115:
1448                 case 0x0136:
1449                 case 0x013f:
1450                         sony_nc_battery_care_cleanup(pd);
1451                         break;
1452                 case 0x0119:
1453                 case 0x015D:
1454                         sony_nc_lid_resume_cleanup(pd);
1455                         break;
1456                 case 0x0122:
1457                         sony_nc_thermal_cleanup(pd);
1458                         break;
1459                 case 0x0128:
1460                 case 0x0146:
1461                 case 0x015B:
1462                         sony_nc_gfx_switch_cleanup(pd);
1463                         break;
1464                 case 0x0131:
1465                         sony_nc_highspeed_charging_cleanup(pd);
1466                         break;
1467                 case 0x0124:
1468                 case 0x0135:
1469                         sony_nc_rfkill_cleanup();
1470                         break;
1471                 case 0x0137:
1472                 case 0x0143:
1473                 case 0x014b:
1474                 case 0x014c:
1475                 case 0x0153:
1476                 case 0x0163:
1477                         sony_nc_kbd_backlight_cleanup(pd, handle);
1478                         break;
1479                 case 0x0121:
1480                         sony_nc_lowbatt_cleanup(pd);
1481                         break;
1482                 case 0x0149:
1483                         sony_nc_fanspeed_cleanup(pd);
1484                         break;
1485                 case 0x0155:
1486                         sony_nc_usb_charge_cleanup(pd);
1487                         break;
1488                 case 0x011D:
1489                         sony_nc_panelid_cleanup(pd);
1490                         break;
1491                 case 0x0168:
1492                         sony_nc_smart_conn_cleanup(pd);
1493                         break;
1494                 default:
1495                         continue;
1496                 }
1497         }
1498
1499         /* finally cleanup the handles list */
1500         sony_nc_handles_cleanup(pd);
1501 }
1502
1503 #ifdef CONFIG_PM_SLEEP
1504 static void sony_nc_function_resume(void)
1505 {
1506         unsigned int i, result, bitmask, arg;
1507
1508         dprintk("Resuming SNC device\n");
1509
1510         for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
1511                 unsigned int handle = handles->cap[i];
1512
1513                 if (!handle)
1514                         continue;
1515
1516                 switch (handle) {
1517                 case 0x0100:
1518                 case 0x0101:
1519                 case 0x0127:
1520                         /* re-enable hotkeys */
1521                         sony_call_snc_handle(handle, 0, &result);
1522                         break;
1523                 case 0x0102:
1524                         /* re-enable hotkeys */
1525                         sony_call_snc_handle(handle, 0x100, &result);
1526                         break;
1527                 case 0x0122:
1528                         sony_nc_thermal_resume();
1529                         break;
1530                 case 0x0124:
1531                 case 0x0135:
1532                         sony_nc_rfkill_update();
1533                         break;
1534                 default:
1535                         continue;
1536                 }
1537         }
1538
1539         /* Enable all events */
1540         arg = 0x10;
1541         if (!sony_nc_int_call(sony_nc_acpi_handle, "SN00", &arg, &bitmask))
1542                 sony_nc_int_call(sony_nc_acpi_handle, "SN02", &bitmask,
1543                                 &result);
1544 }
1545
1546 static int sony_nc_resume(struct device *dev)
1547 {
1548         struct sony_nc_value *item;
1549
1550         for (item = sony_nc_values; item->name; item++) {
1551                 int ret;
1552
1553                 if (!item->valid)
1554                         continue;
1555                 ret = sony_nc_int_call(sony_nc_acpi_handle, *item->acpiset,
1556                                        &item->value, NULL);
1557                 if (ret < 0) {
1558                         pr_err("%s: %d\n", __func__, ret);
1559                         break;
1560                 }
1561         }
1562
1563         if (acpi_has_method(sony_nc_acpi_handle, "ECON")) {
1564                 int arg = 1;
1565                 if (sony_nc_int_call(sony_nc_acpi_handle, "ECON", &arg, NULL))
1566                         dprintk("ECON Method failed\n");
1567         }
1568
1569         if (acpi_has_method(sony_nc_acpi_handle, "SN00"))
1570                 sony_nc_function_resume();
1571
1572         return 0;
1573 }
1574 #endif
1575
1576 static SIMPLE_DEV_PM_OPS(sony_nc_pm, NULL, sony_nc_resume);
1577
1578 static void sony_nc_rfkill_cleanup(void)
1579 {
1580         int i;
1581
1582         for (i = 0; i < N_SONY_RFKILL; i++) {
1583                 if (sony_rfkill_devices[i]) {
1584                         rfkill_unregister(sony_rfkill_devices[i]);
1585                         rfkill_destroy(sony_rfkill_devices[i]);
1586                 }
1587         }
1588 }
1589
1590 static int sony_nc_rfkill_set(void *data, bool blocked)
1591 {
1592         int result;
1593         int argument = sony_rfkill_address[(long) data] + 0x100;
1594
1595         if (!blocked)
1596                 argument |= 0x070000;
1597
1598         return sony_call_snc_handle(sony_rfkill_handle, argument, &result);
1599 }
1600
1601 static const struct rfkill_ops sony_rfkill_ops = {
1602         .set_block = sony_nc_rfkill_set,
1603 };
1604
1605 static int sony_nc_setup_rfkill(struct acpi_device *device,
1606                                 enum sony_nc_rfkill nc_type)
1607 {
1608         int err;
1609         struct rfkill *rfk;
1610         enum rfkill_type type;
1611         const char *name;
1612         int result;
1613         bool hwblock, swblock;
1614
1615         switch (nc_type) {
1616         case SONY_WIFI:
1617                 type = RFKILL_TYPE_WLAN;
1618                 name = "sony-wifi";
1619                 break;
1620         case SONY_BLUETOOTH:
1621                 type = RFKILL_TYPE_BLUETOOTH;
1622                 name = "sony-bluetooth";
1623                 break;
1624         case SONY_WWAN:
1625                 type = RFKILL_TYPE_WWAN;
1626                 name = "sony-wwan";
1627                 break;
1628         case SONY_WIMAX:
1629                 type = RFKILL_TYPE_WIMAX;
1630                 name = "sony-wimax";
1631                 break;
1632         default:
1633                 return -EINVAL;
1634         }
1635
1636         rfk = rfkill_alloc(name, &device->dev, type,
1637                            &sony_rfkill_ops, (void *)nc_type);
1638         if (!rfk)
1639                 return -ENOMEM;
1640
1641         err = sony_call_snc_handle(sony_rfkill_handle, 0x200, &result);
1642         if (err < 0) {
1643                 rfkill_destroy(rfk);
1644                 return err;
1645         }
1646         hwblock = !(result & 0x1);
1647
1648         err = sony_call_snc_handle(sony_rfkill_handle,
1649                                    sony_rfkill_address[nc_type],
1650                                    &result);
1651         if (err < 0) {
1652                 rfkill_destroy(rfk);
1653                 return err;
1654         }
1655         swblock = !(result & 0x2);
1656
1657         rfkill_init_sw_state(rfk, swblock);
1658         rfkill_set_hw_state(rfk, hwblock);
1659
1660         err = rfkill_register(rfk);
1661         if (err) {
1662                 rfkill_destroy(rfk);
1663                 return err;
1664         }
1665         sony_rfkill_devices[nc_type] = rfk;
1666         return err;
1667 }
1668
1669 static void sony_nc_rfkill_update(void)
1670 {
1671         enum sony_nc_rfkill i;
1672         int result;
1673         bool hwblock;
1674
1675         sony_call_snc_handle(sony_rfkill_handle, 0x200, &result);
1676         hwblock = !(result & 0x1);
1677
1678         for (i = 0; i < N_SONY_RFKILL; i++) {
1679                 int argument = sony_rfkill_address[i];
1680
1681                 if (!sony_rfkill_devices[i])
1682                         continue;
1683
1684                 if (hwblock) {
1685                         if (rfkill_set_hw_state(sony_rfkill_devices[i], true)) {
1686                                 /* we already know we're blocked */
1687                         }
1688                         continue;
1689                 }
1690
1691                 sony_call_snc_handle(sony_rfkill_handle, argument, &result);
1692                 rfkill_set_states(sony_rfkill_devices[i],
1693                                   !(result & 0x2), false);
1694         }
1695 }
1696
1697 static int sony_nc_rfkill_setup(struct acpi_device *device,
1698                 unsigned int handle)
1699 {
1700         u64 offset;
1701         int i;
1702         unsigned char buffer[32] = { 0 };
1703
1704         offset = sony_find_snc_handle(handle);
1705         sony_rfkill_handle = handle;
1706
1707         i = sony_nc_buffer_call(sony_nc_acpi_handle, "SN06", &offset, buffer,
1708                         32);
1709         if (i < 0)
1710                 return i;
1711
1712         /* The buffer is filled with magic numbers describing the devices
1713          * available, 0xff terminates the enumeration.
1714          * Known codes:
1715          *      0x00 WLAN
1716          *      0x10 BLUETOOTH
1717          *      0x20 WWAN GPRS-EDGE
1718          *      0x21 WWAN HSDPA
1719          *      0x22 WWAN EV-DO
1720          *      0x23 WWAN GPS
1721          *      0x25 Gobi WWAN no GPS
1722          *      0x26 Gobi WWAN + GPS
1723          *      0x28 Gobi WWAN no GPS
1724          *      0x29 Gobi WWAN + GPS
1725          *      0x30 WIMAX
1726          *      0x50 Gobi WWAN no GPS
1727          *      0x51 Gobi WWAN + GPS
1728          *      0x70 no SIM card slot
1729          *      0x71 SIM card slot
1730          */
1731         for (i = 0; i < ARRAY_SIZE(buffer); i++) {
1732
1733                 if (buffer[i] == 0xff)
1734                         break;
1735
1736                 dprintk("Radio devices, found 0x%.2x\n", buffer[i]);
1737
1738                 if (buffer[i] == 0 && !sony_rfkill_devices[SONY_WIFI])
1739                         sony_nc_setup_rfkill(device, SONY_WIFI);
1740
1741                 if (buffer[i] == 0x10 && !sony_rfkill_devices[SONY_BLUETOOTH])
1742                         sony_nc_setup_rfkill(device, SONY_BLUETOOTH);
1743
1744                 if (((0xf0 & buffer[i]) == 0x20 ||
1745                                         (0xf0 & buffer[i]) == 0x50) &&
1746                                 !sony_rfkill_devices[SONY_WWAN])
1747                         sony_nc_setup_rfkill(device, SONY_WWAN);
1748
1749                 if (buffer[i] == 0x30 && !sony_rfkill_devices[SONY_WIMAX])
1750                         sony_nc_setup_rfkill(device, SONY_WIMAX);
1751         }
1752         return 0;
1753 }
1754
1755 /* Keyboard backlight feature */
1756 struct kbd_backlight {
1757         unsigned int handle;
1758         unsigned int base;
1759         unsigned int mode;
1760         unsigned int timeout;
1761         unsigned int has_timeout;
1762         struct device_attribute mode_attr;
1763         struct device_attribute timeout_attr;
1764 };
1765
1766 static struct kbd_backlight *kbdbl_ctl;
1767
1768 static ssize_t __sony_nc_kbd_backlight_mode_set(u8 value)
1769 {
1770         int result;
1771
1772         if (value > 2)
1773                 return -EINVAL;
1774
1775         if (sony_call_snc_handle(kbdbl_ctl->handle,
1776                                 (value << 0x10) | (kbdbl_ctl->base), &result))
1777                 return -EIO;
1778
1779         /* Try to turn the light on/off immediately */
1780         if (value != 1)
1781                 sony_call_snc_handle(kbdbl_ctl->handle,
1782                                 (value << 0x0f) | (kbdbl_ctl->base + 0x100),
1783                                 &result);
1784
1785         kbdbl_ctl->mode = value;
1786
1787         return 0;
1788 }
1789
1790 static ssize_t sony_nc_kbd_backlight_mode_store(struct device *dev,
1791                 struct device_attribute *attr,
1792                 const char *buffer, size_t count)
1793 {
1794         int ret = 0;
1795         unsigned long value;
1796
1797         if (count > 31)
1798                 return -EINVAL;
1799
1800         if (kstrtoul(buffer, 10, &value))
1801                 return -EINVAL;
1802
1803         ret = __sony_nc_kbd_backlight_mode_set(value);
1804         if (ret < 0)
1805                 return ret;
1806
1807         return count;
1808 }
1809
1810 static ssize_t sony_nc_kbd_backlight_mode_show(struct device *dev,
1811                 struct device_attribute *attr, char *buffer)
1812 {
1813         return sysfs_emit(buffer, "%d\n", kbdbl_ctl->mode);
1814 }
1815
1816 static int __sony_nc_kbd_backlight_timeout_set(u8 value)
1817 {
1818         int result;
1819
1820         if (value > 3)
1821                 return -EINVAL;
1822
1823         if (sony_call_snc_handle(kbdbl_ctl->handle, (value << 0x10) |
1824                                 (kbdbl_ctl->base + 0x200), &result))
1825                 return -EIO;
1826
1827         kbdbl_ctl->timeout = value;
1828
1829         return 0;
1830 }
1831
1832 static ssize_t sony_nc_kbd_backlight_timeout_store(struct device *dev,
1833                 struct device_attribute *attr,
1834                 const char *buffer, size_t count)
1835 {
1836         int ret = 0;
1837         unsigned long value;
1838
1839         if (count > 31)
1840                 return -EINVAL;
1841
1842         if (kstrtoul(buffer, 10, &value))
1843                 return -EINVAL;
1844
1845         ret = __sony_nc_kbd_backlight_timeout_set(value);
1846         if (ret < 0)
1847                 return ret;
1848
1849         return count;
1850 }
1851
1852 static ssize_t sony_nc_kbd_backlight_timeout_show(struct device *dev,
1853                 struct device_attribute *attr, char *buffer)
1854 {
1855         return sysfs_emit(buffer, "%d\n", kbdbl_ctl->timeout);
1856 }
1857
1858 static int sony_nc_kbd_backlight_setup(struct platform_device *pd,
1859                 unsigned int handle)
1860 {
1861         int result;
1862         int probe_base = 0;
1863         int ctl_base = 0;
1864         int ret = 0;
1865
1866         if (kbdbl_ctl) {
1867                 pr_warn("handle 0x%.4x: keyboard backlight setup already done for 0x%.4x\n",
1868                                 handle, kbdbl_ctl->handle);
1869                 return -EBUSY;
1870         }
1871
1872         /* verify the kbd backlight presence, some of these handles are not used
1873          * for keyboard backlight only
1874          */
1875         switch (handle) {
1876         case 0x0153:
1877                 probe_base = 0x0;
1878                 ctl_base = 0x0;
1879                 break;
1880         case 0x0137:
1881                 probe_base = 0x0B00;
1882                 ctl_base = 0x0C00;
1883                 break;
1884         default:
1885                 probe_base = 0x0100;
1886                 ctl_base = 0x4000;
1887                 break;
1888         }
1889
1890         /*
1891          * Only probe if there is a separate probe_base, otherwise the probe call
1892          * is equivalent to __sony_nc_kbd_backlight_mode_set(0), resulting in
1893          * the keyboard backlight being turned off.
1894          */
1895         if (probe_base) {
1896                 ret = sony_call_snc_handle(handle, probe_base, &result);
1897                 if (ret)
1898                         return ret;
1899
1900                 if ((handle == 0x0137 && !(result & 0x02)) ||
1901                                 !(result & 0x01)) {
1902                         dprintk("no backlight keyboard found\n");
1903                         return 0;
1904                 }
1905         }
1906
1907         kbdbl_ctl = kzalloc(sizeof(*kbdbl_ctl), GFP_KERNEL);
1908         if (!kbdbl_ctl)
1909                 return -ENOMEM;
1910
1911         kbdbl_ctl->mode = kbd_backlight;
1912         kbdbl_ctl->timeout = kbd_backlight_timeout;
1913         kbdbl_ctl->handle = handle;
1914         kbdbl_ctl->base = ctl_base;
1915         /* Some models do not allow timeout control */
1916         kbdbl_ctl->has_timeout = handle != 0x0153;
1917
1918         sysfs_attr_init(&kbdbl_ctl->mode_attr.attr);
1919         kbdbl_ctl->mode_attr.attr.name = "kbd_backlight";
1920         kbdbl_ctl->mode_attr.attr.mode = S_IRUGO | S_IWUSR;
1921         kbdbl_ctl->mode_attr.show = sony_nc_kbd_backlight_mode_show;
1922         kbdbl_ctl->mode_attr.store = sony_nc_kbd_backlight_mode_store;
1923
1924         ret = device_create_file(&pd->dev, &kbdbl_ctl->mode_attr);
1925         if (ret)
1926                 goto outkzalloc;
1927
1928         __sony_nc_kbd_backlight_mode_set(kbdbl_ctl->mode);
1929
1930         if (kbdbl_ctl->has_timeout) {
1931                 sysfs_attr_init(&kbdbl_ctl->timeout_attr.attr);
1932                 kbdbl_ctl->timeout_attr.attr.name = "kbd_backlight_timeout";
1933                 kbdbl_ctl->timeout_attr.attr.mode = S_IRUGO | S_IWUSR;
1934                 kbdbl_ctl->timeout_attr.show =
1935                         sony_nc_kbd_backlight_timeout_show;
1936                 kbdbl_ctl->timeout_attr.store =
1937                         sony_nc_kbd_backlight_timeout_store;
1938
1939                 ret = device_create_file(&pd->dev, &kbdbl_ctl->timeout_attr);
1940                 if (ret)
1941                         goto outmode;
1942
1943                 __sony_nc_kbd_backlight_timeout_set(kbdbl_ctl->timeout);
1944         }
1945
1946
1947         return 0;
1948
1949 outmode:
1950         device_remove_file(&pd->dev, &kbdbl_ctl->mode_attr);
1951 outkzalloc:
1952         kfree(kbdbl_ctl);
1953         kbdbl_ctl = NULL;
1954         return ret;
1955 }
1956
1957 static void sony_nc_kbd_backlight_cleanup(struct platform_device *pd,
1958                 unsigned int handle)
1959 {
1960         if (kbdbl_ctl && handle == kbdbl_ctl->handle) {
1961                 device_remove_file(&pd->dev, &kbdbl_ctl->mode_attr);
1962                 if (kbdbl_ctl->has_timeout)
1963                         device_remove_file(&pd->dev, &kbdbl_ctl->timeout_attr);
1964                 kfree(kbdbl_ctl);
1965                 kbdbl_ctl = NULL;
1966         }
1967 }
1968
1969 struct battery_care_control {
1970         struct device_attribute attrs[2];
1971         unsigned int handle;
1972 };
1973 static struct battery_care_control *bcare_ctl;
1974
1975 static ssize_t sony_nc_battery_care_limit_store(struct device *dev,
1976                 struct device_attribute *attr,
1977                 const char *buffer, size_t count)
1978 {
1979         unsigned int result, cmd;
1980         unsigned long value;
1981
1982         if (count > 31)
1983                 return -EINVAL;
1984
1985         if (kstrtoul(buffer, 10, &value))
1986                 return -EINVAL;
1987
1988         /*  limit values (2 bits):
1989          *  00 - none
1990          *  01 - 80%
1991          *  10 - 50%
1992          *  11 - 100%
1993          *
1994          *  bit 0: 0 disable BCL, 1 enable BCL
1995          *  bit 1: 1 tell to store the battery limit (see bits 6,7) too
1996          *  bits 2,3: reserved
1997          *  bits 4,5: store the limit into the EC
1998          *  bits 6,7: store the limit into the battery
1999          */
2000         cmd = 0;
2001
2002         if (value > 0) {
2003                 if (value <= 50)
2004                         cmd = 0x20;
2005
2006                 else if (value <= 80)
2007                         cmd = 0x10;
2008
2009                 else if (value <= 100)
2010                         cmd = 0x30;
2011
2012                 else
2013                         return -EINVAL;
2014
2015                 /*
2016                  * handle 0x0115 should allow storing on battery too;
2017                  * handle 0x0136 same as 0x0115 + health status;
2018                  * handle 0x013f, same as 0x0136 but no storing on the battery
2019                  */
2020                 if (bcare_ctl->handle != 0x013f)
2021                         cmd = cmd | (cmd << 2);
2022
2023                 cmd = (cmd | 0x1) << 0x10;
2024         }
2025
2026         if (sony_call_snc_handle(bcare_ctl->handle, cmd | 0x0100, &result))
2027                 return -EIO;
2028
2029         return count;
2030 }
2031
2032 static ssize_t sony_nc_battery_care_limit_show(struct device *dev,
2033                 struct device_attribute *attr, char *buffer)
2034 {
2035         unsigned int result, status;
2036
2037         if (sony_call_snc_handle(bcare_ctl->handle, 0x0000, &result))
2038                 return -EIO;
2039
2040         status = (result & 0x01) ? ((result & 0x30) >> 0x04) : 0;
2041         switch (status) {
2042         case 1:
2043                 status = 80;
2044                 break;
2045         case 2:
2046                 status = 50;
2047                 break;
2048         case 3:
2049                 status = 100;
2050                 break;
2051         default:
2052                 status = 0;
2053                 break;
2054         }
2055
2056         return sysfs_emit(buffer, "%d\n", status);
2057 }
2058
2059 static ssize_t sony_nc_battery_care_health_show(struct device *dev,
2060                 struct device_attribute *attr, char *buffer)
2061 {
2062         unsigned int health;
2063
2064         if (sony_call_snc_handle(bcare_ctl->handle, 0x0200, &health))
2065                 return -EIO;
2066
2067         return sysfs_emit(buffer, "%d\n", health & 0xff);
2068 }
2069
2070 static int sony_nc_battery_care_setup(struct platform_device *pd,
2071                 unsigned int handle)
2072 {
2073         int ret = 0;
2074
2075         bcare_ctl = kzalloc(sizeof(struct battery_care_control), GFP_KERNEL);
2076         if (!bcare_ctl)
2077                 return -ENOMEM;
2078
2079         bcare_ctl->handle = handle;
2080
2081         sysfs_attr_init(&bcare_ctl->attrs[0].attr);
2082         bcare_ctl->attrs[0].attr.name = "battery_care_limiter";
2083         bcare_ctl->attrs[0].attr.mode = S_IRUGO | S_IWUSR;
2084         bcare_ctl->attrs[0].show = sony_nc_battery_care_limit_show;
2085         bcare_ctl->attrs[0].store = sony_nc_battery_care_limit_store;
2086
2087         ret = device_create_file(&pd->dev, &bcare_ctl->attrs[0]);
2088         if (ret)
2089                 goto outkzalloc;
2090
2091         /* 0x0115 is for models with no health reporting capability */
2092         if (handle == 0x0115)
2093                 return 0;
2094
2095         sysfs_attr_init(&bcare_ctl->attrs[1].attr);
2096         bcare_ctl->attrs[1].attr.name = "battery_care_health";
2097         bcare_ctl->attrs[1].attr.mode = S_IRUGO;
2098         bcare_ctl->attrs[1].show = sony_nc_battery_care_health_show;
2099
2100         ret = device_create_file(&pd->dev, &bcare_ctl->attrs[1]);
2101         if (ret)
2102                 goto outlimiter;
2103
2104         return 0;
2105
2106 outlimiter:
2107         device_remove_file(&pd->dev, &bcare_ctl->attrs[0]);
2108
2109 outkzalloc:
2110         kfree(bcare_ctl);
2111         bcare_ctl = NULL;
2112
2113         return ret;
2114 }
2115
2116 static void sony_nc_battery_care_cleanup(struct platform_device *pd)
2117 {
2118         if (bcare_ctl) {
2119                 device_remove_file(&pd->dev, &bcare_ctl->attrs[0]);
2120                 if (bcare_ctl->handle != 0x0115)
2121                         device_remove_file(&pd->dev, &bcare_ctl->attrs[1]);
2122
2123                 kfree(bcare_ctl);
2124                 bcare_ctl = NULL;
2125         }
2126 }
2127
2128 struct snc_thermal_ctrl {
2129         unsigned int mode;
2130         unsigned int profiles;
2131         struct device_attribute mode_attr;
2132         struct device_attribute profiles_attr;
2133 };
2134 static struct snc_thermal_ctrl *th_handle;
2135
2136 #define THM_PROFILE_MAX 3
2137 static const char * const snc_thermal_profiles[] = {
2138         "balanced",
2139         "silent",
2140         "performance"
2141 };
2142
2143 static int sony_nc_thermal_mode_set(unsigned short mode)
2144 {
2145         unsigned int result;
2146
2147         /* the thermal profile seems to be a two bit bitmask:
2148          * lsb -> silent
2149          * msb -> performance
2150          * no bit set is the normal operation and is always valid
2151          * Some vaio models only have "balanced" and "performance"
2152          */
2153         if ((mode && !(th_handle->profiles & mode)) || mode >= THM_PROFILE_MAX)
2154                 return -EINVAL;
2155
2156         if (sony_call_snc_handle(0x0122, mode << 0x10 | 0x0200, &result))
2157                 return -EIO;
2158
2159         th_handle->mode = mode;
2160
2161         return 0;
2162 }
2163
2164 static int sony_nc_thermal_mode_get(void)
2165 {
2166         unsigned int result;
2167
2168         if (sony_call_snc_handle(0x0122, 0x0100, &result))
2169                 return -EIO;
2170
2171         return result & 0xff;
2172 }
2173
2174 static ssize_t sony_nc_thermal_profiles_show(struct device *dev,
2175                 struct device_attribute *attr, char *buffer)
2176 {
2177         short cnt;
2178         size_t idx = 0;
2179
2180         for (cnt = 0; cnt < THM_PROFILE_MAX; cnt++) {
2181                 if (!cnt || (th_handle->profiles & cnt))
2182                         idx += sysfs_emit_at(buffer, idx, "%s ", snc_thermal_profiles[cnt]);
2183         }
2184         idx += sysfs_emit_at(buffer, idx, "\n");
2185
2186         return idx;
2187 }
2188
2189 static ssize_t sony_nc_thermal_mode_store(struct device *dev,
2190                 struct device_attribute *attr,
2191                 const char *buffer, size_t count)
2192 {
2193         unsigned short cmd;
2194         size_t len = count;
2195
2196         if (count == 0)
2197                 return -EINVAL;
2198
2199         /* skip the newline if present */
2200         if (buffer[len - 1] == '\n')
2201                 len--;
2202
2203         for (cmd = 0; cmd < THM_PROFILE_MAX; cmd++)
2204                 if (strncmp(buffer, snc_thermal_profiles[cmd], len) == 0)
2205                         break;
2206
2207         if (sony_nc_thermal_mode_set(cmd))
2208                 return -EIO;
2209
2210         return count;
2211 }
2212
2213 static ssize_t sony_nc_thermal_mode_show(struct device *dev,
2214                 struct device_attribute *attr, char *buffer)
2215 {
2216         int mode = sony_nc_thermal_mode_get();
2217
2218         if (mode < 0)
2219                 return mode;
2220
2221         return sysfs_emit(buffer, "%s\n", snc_thermal_profiles[mode]);
2222 }
2223
2224 static int sony_nc_thermal_setup(struct platform_device *pd)
2225 {
2226         int ret = 0;
2227         th_handle = kzalloc(sizeof(struct snc_thermal_ctrl), GFP_KERNEL);
2228         if (!th_handle)
2229                 return -ENOMEM;
2230
2231         ret = sony_call_snc_handle(0x0122, 0x0000, &th_handle->profiles);
2232         if (ret) {
2233                 pr_warn("couldn't to read the thermal profiles\n");
2234                 goto outkzalloc;
2235         }
2236
2237         ret = sony_nc_thermal_mode_get();
2238         if (ret < 0) {
2239                 pr_warn("couldn't to read the current thermal profile");
2240                 goto outkzalloc;
2241         }
2242         th_handle->mode = ret;
2243
2244         sysfs_attr_init(&th_handle->profiles_attr.attr);
2245         th_handle->profiles_attr.attr.name = "thermal_profiles";
2246         th_handle->profiles_attr.attr.mode = S_IRUGO;
2247         th_handle->profiles_attr.show = sony_nc_thermal_profiles_show;
2248
2249         sysfs_attr_init(&th_handle->mode_attr.attr);
2250         th_handle->mode_attr.attr.name = "thermal_control";
2251         th_handle->mode_attr.attr.mode = S_IRUGO | S_IWUSR;
2252         th_handle->mode_attr.show = sony_nc_thermal_mode_show;
2253         th_handle->mode_attr.store = sony_nc_thermal_mode_store;
2254
2255         ret = device_create_file(&pd->dev, &th_handle->profiles_attr);
2256         if (ret)
2257                 goto outkzalloc;
2258
2259         ret = device_create_file(&pd->dev, &th_handle->mode_attr);
2260         if (ret)
2261                 goto outprofiles;
2262
2263         return 0;
2264
2265 outprofiles:
2266         device_remove_file(&pd->dev, &th_handle->profiles_attr);
2267 outkzalloc:
2268         kfree(th_handle);
2269         th_handle = NULL;
2270         return ret;
2271 }
2272
2273 static void sony_nc_thermal_cleanup(struct platform_device *pd)
2274 {
2275         if (th_handle) {
2276                 device_remove_file(&pd->dev, &th_handle->profiles_attr);
2277                 device_remove_file(&pd->dev, &th_handle->mode_attr);
2278                 kfree(th_handle);
2279                 th_handle = NULL;
2280         }
2281 }
2282
2283 #ifdef CONFIG_PM_SLEEP
2284 static void sony_nc_thermal_resume(void)
2285 {
2286         int status;
2287
2288         if (!th_handle)
2289                 return;
2290
2291         status = sony_nc_thermal_mode_get();
2292
2293         if (status != th_handle->mode)
2294                 sony_nc_thermal_mode_set(th_handle->mode);
2295 }
2296 #endif
2297
2298 /* resume on LID open */
2299 #define LID_RESUME_S5   0
2300 #define LID_RESUME_S4   1
2301 #define LID_RESUME_S3   2
2302 #define LID_RESUME_MAX  3
2303 struct snc_lid_resume_control {
2304         struct device_attribute attrs[LID_RESUME_MAX];
2305         unsigned int status;
2306         int handle;
2307 };
2308 static struct snc_lid_resume_control *lid_ctl;
2309
2310 static ssize_t sony_nc_lid_resume_store(struct device *dev,
2311                                         struct device_attribute *attr,
2312                                         const char *buffer, size_t count)
2313 {
2314         unsigned int result;
2315         unsigned long value;
2316         unsigned int pos = LID_RESUME_S5;
2317         if (count > 31)
2318                 return -EINVAL;
2319
2320         if (kstrtoul(buffer, 10, &value) || value > 1)
2321                 return -EINVAL;
2322
2323         /* the value we have to write to SNC is a bitmask:
2324          * +--------------+
2325          * | S3 | S4 | S5 |
2326          * +--------------+
2327          *   2    1    0
2328          */
2329         while (pos < LID_RESUME_MAX) {
2330                 if (&lid_ctl->attrs[pos].attr == &attr->attr)
2331                         break;
2332                 pos++;
2333         }
2334         if (pos == LID_RESUME_MAX)
2335                 return -EINVAL;
2336
2337         if (value)
2338                 value = lid_ctl->status | (1 << pos);
2339         else
2340                 value = lid_ctl->status & ~(1 << pos);
2341
2342         if (sony_call_snc_handle(lid_ctl->handle, value << 0x10 | 0x0100,
2343                                 &result))
2344                 return -EIO;
2345
2346         lid_ctl->status = value;
2347
2348         return count;
2349 }
2350
2351 static ssize_t sony_nc_lid_resume_show(struct device *dev,
2352                                         struct device_attribute *attr,
2353                                         char *buffer)
2354 {
2355         unsigned int pos = LID_RESUME_S5;
2356
2357         while (pos < LID_RESUME_MAX) {
2358                 if (&lid_ctl->attrs[pos].attr == &attr->attr)
2359                         return sysfs_emit(buffer, "%d\n",
2360                                         (lid_ctl->status >> pos) & 0x01);
2361                 pos++;
2362         }
2363         return -EINVAL;
2364 }
2365
2366 static int sony_nc_lid_resume_setup(struct platform_device *pd,
2367                                         unsigned int handle)
2368 {
2369         unsigned int result;
2370         int i;
2371
2372         if (sony_call_snc_handle(handle, 0x0000, &result))
2373                 return -EIO;
2374
2375         lid_ctl = kzalloc(sizeof(struct snc_lid_resume_control), GFP_KERNEL);
2376         if (!lid_ctl)
2377                 return -ENOMEM;
2378
2379         lid_ctl->status = result & 0x7;
2380         lid_ctl->handle = handle;
2381
2382         sysfs_attr_init(&lid_ctl->attrs[0].attr);
2383         lid_ctl->attrs[LID_RESUME_S5].attr.name = "lid_resume_S5";
2384         lid_ctl->attrs[LID_RESUME_S5].attr.mode = S_IRUGO | S_IWUSR;
2385         lid_ctl->attrs[LID_RESUME_S5].show = sony_nc_lid_resume_show;
2386         lid_ctl->attrs[LID_RESUME_S5].store = sony_nc_lid_resume_store;
2387
2388         if (handle == 0x0119) {
2389                 sysfs_attr_init(&lid_ctl->attrs[1].attr);
2390                 lid_ctl->attrs[LID_RESUME_S4].attr.name = "lid_resume_S4";
2391                 lid_ctl->attrs[LID_RESUME_S4].attr.mode = S_IRUGO | S_IWUSR;
2392                 lid_ctl->attrs[LID_RESUME_S4].show = sony_nc_lid_resume_show;
2393                 lid_ctl->attrs[LID_RESUME_S4].store = sony_nc_lid_resume_store;
2394
2395                 sysfs_attr_init(&lid_ctl->attrs[2].attr);
2396                 lid_ctl->attrs[LID_RESUME_S3].attr.name = "lid_resume_S3";
2397                 lid_ctl->attrs[LID_RESUME_S3].attr.mode = S_IRUGO | S_IWUSR;
2398                 lid_ctl->attrs[LID_RESUME_S3].show = sony_nc_lid_resume_show;
2399                 lid_ctl->attrs[LID_RESUME_S3].store = sony_nc_lid_resume_store;
2400         }
2401         for (i = 0; i < LID_RESUME_MAX &&
2402                         lid_ctl->attrs[i].attr.name; i++) {
2403                 result = device_create_file(&pd->dev, &lid_ctl->attrs[i]);
2404                 if (result)
2405                         goto liderror;
2406         }
2407
2408         return 0;
2409
2410 liderror:
2411         for (i--; i >= 0; i--)
2412                 device_remove_file(&pd->dev, &lid_ctl->attrs[i]);
2413
2414         kfree(lid_ctl);
2415         lid_ctl = NULL;
2416
2417         return result;
2418 }
2419
2420 static void sony_nc_lid_resume_cleanup(struct platform_device *pd)
2421 {
2422         int i;
2423
2424         if (lid_ctl) {
2425                 for (i = 0; i < LID_RESUME_MAX; i++) {
2426                         if (!lid_ctl->attrs[i].attr.name)
2427                                 break;
2428
2429                         device_remove_file(&pd->dev, &lid_ctl->attrs[i]);
2430                 }
2431
2432                 kfree(lid_ctl);
2433                 lid_ctl = NULL;
2434         }
2435 }
2436
2437 /* GFX Switch position */
2438 enum gfx_switch {
2439         SPEED,
2440         STAMINA,
2441         AUTO
2442 };
2443 struct snc_gfx_switch_control {
2444         struct device_attribute attr;
2445         unsigned int handle;
2446 };
2447 static struct snc_gfx_switch_control *gfxs_ctl;
2448
2449 /* returns 0 for speed, 1 for stamina */
2450 static int __sony_nc_gfx_switch_status_get(void)
2451 {
2452         unsigned int result;
2453
2454         if (sony_call_snc_handle(gfxs_ctl->handle,
2455                                 gfxs_ctl->handle == 0x015B ? 0x0000 : 0x0100,
2456                                 &result))
2457                 return -EIO;
2458
2459         switch (gfxs_ctl->handle) {
2460         case 0x0146:
2461                 /* 1: discrete GFX (speed)
2462                  * 0: integrated GFX (stamina)
2463                  */
2464                 return result & 0x1 ? SPEED : STAMINA;
2465         case 0x015B:
2466                 /* 0: discrete GFX (speed)
2467                  * 1: integrated GFX (stamina)
2468                  */
2469                 return result & 0x1 ? STAMINA : SPEED;
2470         case 0x0128:
2471                 /* it's a more elaborated bitmask, for now:
2472                  * 2: integrated GFX (stamina)
2473                  * 0: discrete GFX (speed)
2474                  */
2475                 dprintk("GFX Status: 0x%x\n", result);
2476                 return result & 0x80 ? AUTO :
2477                         result & 0x02 ? STAMINA : SPEED;
2478         }
2479         return -EINVAL;
2480 }
2481
2482 static ssize_t sony_nc_gfx_switch_status_show(struct device *dev,
2483                                        struct device_attribute *attr,
2484                                        char *buffer)
2485 {
2486         int pos = __sony_nc_gfx_switch_status_get();
2487
2488         if (pos < 0)
2489                 return pos;
2490
2491         return sysfs_emit(buffer, "%s\n",
2492                                         pos == SPEED ? "speed" :
2493                                         pos == STAMINA ? "stamina" :
2494                                         pos == AUTO ? "auto" : "unknown");
2495 }
2496
2497 static int sony_nc_gfx_switch_setup(struct platform_device *pd,
2498                 unsigned int handle)
2499 {
2500         unsigned int result;
2501
2502         gfxs_ctl = kzalloc(sizeof(struct snc_gfx_switch_control), GFP_KERNEL);
2503         if (!gfxs_ctl)
2504                 return -ENOMEM;
2505
2506         gfxs_ctl->handle = handle;
2507
2508         sysfs_attr_init(&gfxs_ctl->attr.attr);
2509         gfxs_ctl->attr.attr.name = "gfx_switch_status";
2510         gfxs_ctl->attr.attr.mode = S_IRUGO;
2511         gfxs_ctl->attr.show = sony_nc_gfx_switch_status_show;
2512
2513         result = device_create_file(&pd->dev, &gfxs_ctl->attr);
2514         if (result)
2515                 goto gfxerror;
2516
2517         return 0;
2518
2519 gfxerror:
2520         kfree(gfxs_ctl);
2521         gfxs_ctl = NULL;
2522
2523         return result;
2524 }
2525
2526 static void sony_nc_gfx_switch_cleanup(struct platform_device *pd)
2527 {
2528         if (gfxs_ctl) {
2529                 device_remove_file(&pd->dev, &gfxs_ctl->attr);
2530
2531                 kfree(gfxs_ctl);
2532                 gfxs_ctl = NULL;
2533         }
2534 }
2535
2536 /* High speed charging function */
2537 static struct device_attribute *hsc_handle;
2538
2539 static ssize_t sony_nc_highspeed_charging_store(struct device *dev,
2540                 struct device_attribute *attr,
2541                 const char *buffer, size_t count)
2542 {
2543         unsigned int result;
2544         unsigned long value;
2545
2546         if (count > 31)
2547                 return -EINVAL;
2548
2549         if (kstrtoul(buffer, 10, &value) || value > 1)
2550                 return -EINVAL;
2551
2552         if (sony_call_snc_handle(0x0131, value << 0x10 | 0x0200, &result))
2553                 return -EIO;
2554
2555         return count;
2556 }
2557
2558 static ssize_t sony_nc_highspeed_charging_show(struct device *dev,
2559                 struct device_attribute *attr, char *buffer)
2560 {
2561         unsigned int result;
2562
2563         if (sony_call_snc_handle(0x0131, 0x0100, &result))
2564                 return -EIO;
2565
2566         return sysfs_emit(buffer, "%d\n", result & 0x01);
2567 }
2568
2569 static int sony_nc_highspeed_charging_setup(struct platform_device *pd)
2570 {
2571         unsigned int result;
2572
2573         if (sony_call_snc_handle(0x0131, 0x0000, &result) || !(result & 0x01)) {
2574                 /* some models advertise the handle but have no implementation
2575                  * for it
2576                  */
2577                 pr_info("No High Speed Charging capability found\n");
2578                 return 0;
2579         }
2580
2581         hsc_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2582         if (!hsc_handle)
2583                 return -ENOMEM;
2584
2585         sysfs_attr_init(&hsc_handle->attr);
2586         hsc_handle->attr.name = "battery_highspeed_charging";
2587         hsc_handle->attr.mode = S_IRUGO | S_IWUSR;
2588         hsc_handle->show = sony_nc_highspeed_charging_show;
2589         hsc_handle->store = sony_nc_highspeed_charging_store;
2590
2591         result = device_create_file(&pd->dev, hsc_handle);
2592         if (result) {
2593                 kfree(hsc_handle);
2594                 hsc_handle = NULL;
2595                 return result;
2596         }
2597
2598         return 0;
2599 }
2600
2601 static void sony_nc_highspeed_charging_cleanup(struct platform_device *pd)
2602 {
2603         if (hsc_handle) {
2604                 device_remove_file(&pd->dev, hsc_handle);
2605                 kfree(hsc_handle);
2606                 hsc_handle = NULL;
2607         }
2608 }
2609
2610 /* low battery function */
2611 static struct device_attribute *lowbatt_handle;
2612
2613 static ssize_t sony_nc_lowbatt_store(struct device *dev,
2614                 struct device_attribute *attr,
2615                 const char *buffer, size_t count)
2616 {
2617         unsigned int result;
2618         unsigned long value;
2619
2620         if (count > 31)
2621                 return -EINVAL;
2622
2623         if (kstrtoul(buffer, 10, &value) || value > 1)
2624                 return -EINVAL;
2625
2626         if (sony_call_snc_handle(0x0121, value << 8, &result))
2627                 return -EIO;
2628
2629         return count;
2630 }
2631
2632 static ssize_t sony_nc_lowbatt_show(struct device *dev,
2633                 struct device_attribute *attr, char *buffer)
2634 {
2635         unsigned int result;
2636
2637         if (sony_call_snc_handle(0x0121, 0x0200, &result))
2638                 return -EIO;
2639
2640         return sysfs_emit(buffer, "%d\n", result & 1);
2641 }
2642
2643 static int sony_nc_lowbatt_setup(struct platform_device *pd)
2644 {
2645         unsigned int result;
2646
2647         lowbatt_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2648         if (!lowbatt_handle)
2649                 return -ENOMEM;
2650
2651         sysfs_attr_init(&lowbatt_handle->attr);
2652         lowbatt_handle->attr.name = "lowbatt_hibernate";
2653         lowbatt_handle->attr.mode = S_IRUGO | S_IWUSR;
2654         lowbatt_handle->show = sony_nc_lowbatt_show;
2655         lowbatt_handle->store = sony_nc_lowbatt_store;
2656
2657         result = device_create_file(&pd->dev, lowbatt_handle);
2658         if (result) {
2659                 kfree(lowbatt_handle);
2660                 lowbatt_handle = NULL;
2661                 return result;
2662         }
2663
2664         return 0;
2665 }
2666
2667 static void sony_nc_lowbatt_cleanup(struct platform_device *pd)
2668 {
2669         if (lowbatt_handle) {
2670                 device_remove_file(&pd->dev, lowbatt_handle);
2671                 kfree(lowbatt_handle);
2672                 lowbatt_handle = NULL;
2673         }
2674 }
2675
2676 /* fan speed function */
2677 static struct device_attribute *fan_handle, *hsf_handle;
2678
2679 static ssize_t sony_nc_hsfan_store(struct device *dev,
2680                 struct device_attribute *attr,
2681                 const char *buffer, size_t count)
2682 {
2683         unsigned int result;
2684         unsigned long value;
2685
2686         if (count > 31)
2687                 return -EINVAL;
2688
2689         if (kstrtoul(buffer, 10, &value) || value > 1)
2690                 return -EINVAL;
2691
2692         if (sony_call_snc_handle(0x0149, value << 0x10 | 0x0200, &result))
2693                 return -EIO;
2694
2695         return count;
2696 }
2697
2698 static ssize_t sony_nc_hsfan_show(struct device *dev,
2699                 struct device_attribute *attr, char *buffer)
2700 {
2701         unsigned int result;
2702
2703         if (sony_call_snc_handle(0x0149, 0x0100, &result))
2704                 return -EIO;
2705
2706         return sysfs_emit(buffer, "%d\n", result & 0x01);
2707 }
2708
2709 static ssize_t sony_nc_fanspeed_show(struct device *dev,
2710                 struct device_attribute *attr, char *buffer)
2711 {
2712         unsigned int result;
2713
2714         if (sony_call_snc_handle(0x0149, 0x0300, &result))
2715                 return -EIO;
2716
2717         return sysfs_emit(buffer, "%d\n", result & 0xff);
2718 }
2719
2720 static int sony_nc_fanspeed_setup(struct platform_device *pd)
2721 {
2722         unsigned int result;
2723
2724         fan_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2725         if (!fan_handle)
2726                 return -ENOMEM;
2727
2728         hsf_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2729         if (!hsf_handle) {
2730                 result = -ENOMEM;
2731                 goto out_hsf_handle_alloc;
2732         }
2733
2734         sysfs_attr_init(&fan_handle->attr);
2735         fan_handle->attr.name = "fanspeed";
2736         fan_handle->attr.mode = S_IRUGO;
2737         fan_handle->show = sony_nc_fanspeed_show;
2738         fan_handle->store = NULL;
2739
2740         sysfs_attr_init(&hsf_handle->attr);
2741         hsf_handle->attr.name = "fan_forced";
2742         hsf_handle->attr.mode = S_IRUGO | S_IWUSR;
2743         hsf_handle->show = sony_nc_hsfan_show;
2744         hsf_handle->store = sony_nc_hsfan_store;
2745
2746         result = device_create_file(&pd->dev, fan_handle);
2747         if (result)
2748                 goto out_fan_handle;
2749
2750         result = device_create_file(&pd->dev, hsf_handle);
2751         if (result)
2752                 goto out_hsf_handle;
2753
2754         return 0;
2755
2756 out_hsf_handle:
2757         device_remove_file(&pd->dev, fan_handle);
2758
2759 out_fan_handle:
2760         kfree(hsf_handle);
2761         hsf_handle = NULL;
2762
2763 out_hsf_handle_alloc:
2764         kfree(fan_handle);
2765         fan_handle = NULL;
2766         return result;
2767 }
2768
2769 static void sony_nc_fanspeed_cleanup(struct platform_device *pd)
2770 {
2771         if (fan_handle) {
2772                 device_remove_file(&pd->dev, fan_handle);
2773                 kfree(fan_handle);
2774                 fan_handle = NULL;
2775         }
2776         if (hsf_handle) {
2777                 device_remove_file(&pd->dev, hsf_handle);
2778                 kfree(hsf_handle);
2779                 hsf_handle = NULL;
2780         }
2781 }
2782
2783 /* USB charge function */
2784 static struct device_attribute *uc_handle;
2785
2786 static ssize_t sony_nc_usb_charge_store(struct device *dev,
2787                 struct device_attribute *attr,
2788                 const char *buffer, size_t count)
2789 {
2790         unsigned int result;
2791         unsigned long value;
2792
2793         if (count > 31)
2794                 return -EINVAL;
2795
2796         if (kstrtoul(buffer, 10, &value) || value > 1)
2797                 return -EINVAL;
2798
2799         if (sony_call_snc_handle(0x0155, value << 0x10 | 0x0100, &result))
2800                 return -EIO;
2801
2802         return count;
2803 }
2804
2805 static ssize_t sony_nc_usb_charge_show(struct device *dev,
2806                 struct device_attribute *attr, char *buffer)
2807 {
2808         unsigned int result;
2809
2810         if (sony_call_snc_handle(0x0155, 0x0000, &result))
2811                 return -EIO;
2812
2813         return sysfs_emit(buffer, "%d\n", result & 0x01);
2814 }
2815
2816 static int sony_nc_usb_charge_setup(struct platform_device *pd)
2817 {
2818         unsigned int result;
2819
2820         if (sony_call_snc_handle(0x0155, 0x0000, &result) || !(result & 0x01)) {
2821                 /* some models advertise the handle but have no implementation
2822                  * for it
2823                  */
2824                 pr_info("No USB Charge capability found\n");
2825                 return 0;
2826         }
2827
2828         uc_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2829         if (!uc_handle)
2830                 return -ENOMEM;
2831
2832         sysfs_attr_init(&uc_handle->attr);
2833         uc_handle->attr.name = "usb_charge";
2834         uc_handle->attr.mode = S_IRUGO | S_IWUSR;
2835         uc_handle->show = sony_nc_usb_charge_show;
2836         uc_handle->store = sony_nc_usb_charge_store;
2837
2838         result = device_create_file(&pd->dev, uc_handle);
2839         if (result) {
2840                 kfree(uc_handle);
2841                 uc_handle = NULL;
2842                 return result;
2843         }
2844
2845         return 0;
2846 }
2847
2848 static void sony_nc_usb_charge_cleanup(struct platform_device *pd)
2849 {
2850         if (uc_handle) {
2851                 device_remove_file(&pd->dev, uc_handle);
2852                 kfree(uc_handle);
2853                 uc_handle = NULL;
2854         }
2855 }
2856
2857 /* Panel ID function */
2858 static struct device_attribute *panel_handle;
2859
2860 static ssize_t sony_nc_panelid_show(struct device *dev,
2861                 struct device_attribute *attr, char *buffer)
2862 {
2863         unsigned int result;
2864
2865         if (sony_call_snc_handle(0x011D, 0x0000, &result))
2866                 return -EIO;
2867
2868         return sysfs_emit(buffer, "%d\n", result);
2869 }
2870
2871 static int sony_nc_panelid_setup(struct platform_device *pd)
2872 {
2873         unsigned int result;
2874
2875         panel_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2876         if (!panel_handle)
2877                 return -ENOMEM;
2878
2879         sysfs_attr_init(&panel_handle->attr);
2880         panel_handle->attr.name = "panel_id";
2881         panel_handle->attr.mode = S_IRUGO;
2882         panel_handle->show = sony_nc_panelid_show;
2883         panel_handle->store = NULL;
2884
2885         result = device_create_file(&pd->dev, panel_handle);
2886         if (result) {
2887                 kfree(panel_handle);
2888                 panel_handle = NULL;
2889                 return result;
2890         }
2891
2892         return 0;
2893 }
2894
2895 static void sony_nc_panelid_cleanup(struct platform_device *pd)
2896 {
2897         if (panel_handle) {
2898                 device_remove_file(&pd->dev, panel_handle);
2899                 kfree(panel_handle);
2900                 panel_handle = NULL;
2901         }
2902 }
2903
2904 /* smart connect function */
2905 static struct device_attribute *sc_handle;
2906
2907 static ssize_t sony_nc_smart_conn_store(struct device *dev,
2908                 struct device_attribute *attr,
2909                 const char *buffer, size_t count)
2910 {
2911         unsigned int result;
2912         unsigned long value;
2913
2914         if (count > 31)
2915                 return -EINVAL;
2916
2917         if (kstrtoul(buffer, 10, &value) || value > 1)
2918                 return -EINVAL;
2919
2920         if (sony_call_snc_handle(0x0168, value << 0x10, &result))
2921                 return -EIO;
2922
2923         return count;
2924 }
2925
2926 static int sony_nc_smart_conn_setup(struct platform_device *pd)
2927 {
2928         unsigned int result;
2929
2930         sc_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2931         if (!sc_handle)
2932                 return -ENOMEM;
2933
2934         sysfs_attr_init(&sc_handle->attr);
2935         sc_handle->attr.name = "smart_connect";
2936         sc_handle->attr.mode = S_IWUSR;
2937         sc_handle->show = NULL;
2938         sc_handle->store = sony_nc_smart_conn_store;
2939
2940         result = device_create_file(&pd->dev, sc_handle);
2941         if (result) {
2942                 kfree(sc_handle);
2943                 sc_handle = NULL;
2944                 return result;
2945         }
2946
2947         return 0;
2948 }
2949
2950 static void sony_nc_smart_conn_cleanup(struct platform_device *pd)
2951 {
2952         if (sc_handle) {
2953                 device_remove_file(&pd->dev, sc_handle);
2954                 kfree(sc_handle);
2955                 sc_handle = NULL;
2956         }
2957 }
2958
2959 /* Touchpad enable/disable */
2960 struct touchpad_control {
2961         struct device_attribute attr;
2962         int handle;
2963 };
2964 static struct touchpad_control *tp_ctl;
2965
2966 static ssize_t sony_nc_touchpad_store(struct device *dev,
2967                 struct device_attribute *attr, const char *buffer, size_t count)
2968 {
2969         unsigned int result;
2970         unsigned long value;
2971
2972         if (count > 31)
2973                 return -EINVAL;
2974
2975         if (kstrtoul(buffer, 10, &value) || value > 1)
2976                 return -EINVAL;
2977
2978         /* sysfs: 0 disabled, 1 enabled
2979          * EC: 0 enabled, 1 disabled
2980          */
2981         if (sony_call_snc_handle(tp_ctl->handle,
2982                                 (!value << 0x10) | 0x100, &result))
2983                 return -EIO;
2984
2985         return count;
2986 }
2987
2988 static ssize_t sony_nc_touchpad_show(struct device *dev,
2989                 struct device_attribute *attr, char *buffer)
2990 {
2991         unsigned int result;
2992
2993         if (sony_call_snc_handle(tp_ctl->handle, 0x000, &result))
2994                 return -EINVAL;
2995
2996         return sysfs_emit(buffer, "%d\n", !(result & 0x01));
2997 }
2998
2999 static int sony_nc_touchpad_setup(struct platform_device *pd,
3000                 unsigned int handle)
3001 {
3002         int ret = 0;
3003
3004         tp_ctl = kzalloc(sizeof(struct touchpad_control), GFP_KERNEL);
3005         if (!tp_ctl)
3006                 return -ENOMEM;
3007
3008         tp_ctl->handle = handle;
3009
3010         sysfs_attr_init(&tp_ctl->attr.attr);
3011         tp_ctl->attr.attr.name = "touchpad";
3012         tp_ctl->attr.attr.mode = S_IRUGO | S_IWUSR;
3013         tp_ctl->attr.show = sony_nc_touchpad_show;
3014         tp_ctl->attr.store = sony_nc_touchpad_store;
3015
3016         ret = device_create_file(&pd->dev, &tp_ctl->attr);
3017         if (ret) {
3018                 kfree(tp_ctl);
3019                 tp_ctl = NULL;
3020         }
3021
3022         return ret;
3023 }
3024
3025 static void sony_nc_touchpad_cleanup(struct platform_device *pd)
3026 {
3027         if (tp_ctl) {
3028                 device_remove_file(&pd->dev, &tp_ctl->attr);
3029                 kfree(tp_ctl);
3030                 tp_ctl = NULL;
3031         }
3032 }
3033
3034 static void sony_nc_backlight_ng_read_limits(int handle,
3035                 struct sony_backlight_props *props)
3036 {
3037         u64 offset;
3038         int i;
3039         int lvl_table_len = 0;
3040         u8 min = 0xff, max = 0x00;
3041         unsigned char buffer[32] = { 0 };
3042
3043         props->handle = handle;
3044         props->offset = 0;
3045         props->maxlvl = 0xff;
3046
3047         offset = sony_find_snc_handle(handle);
3048
3049         /* try to read the boundaries from ACPI tables, if we fail the above
3050          * defaults should be reasonable
3051          */
3052         i = sony_nc_buffer_call(sony_nc_acpi_handle, "SN06", &offset, buffer,
3053                         32);
3054         if (i < 0)
3055                 return;
3056
3057         switch (handle) {
3058         case 0x012f:
3059         case 0x0137:
3060                 lvl_table_len = 9;
3061                 break;
3062         case 0x143:
3063         case 0x14b:
3064         case 0x14c:
3065                 lvl_table_len = 16;
3066                 break;
3067         }
3068
3069         /* the buffer lists brightness levels available, brightness levels are
3070          * from position 0 to 8 in the array, other values are used by ALS
3071          * control.
3072          */
3073         for (i = 0; i < lvl_table_len && i < ARRAY_SIZE(buffer); i++) {
3074
3075                 dprintk("Brightness level: %d\n", buffer[i]);
3076
3077                 if (!buffer[i])
3078                         break;
3079
3080                 if (buffer[i] > max)
3081                         max = buffer[i];
3082                 if (buffer[i] < min)
3083                         min = buffer[i];
3084         }
3085         props->offset = min;
3086         props->maxlvl = max;
3087         dprintk("Brightness levels: min=%d max=%d\n", props->offset,
3088                         props->maxlvl);
3089 }
3090
3091 static void sony_nc_backlight_setup(void)
3092 {
3093         int max_brightness = 0;
3094         const struct backlight_ops *ops = NULL;
3095         struct backlight_properties props;
3096
3097         if (sony_find_snc_handle(0x12f) >= 0) {
3098                 ops = &sony_backlight_ng_ops;
3099                 sony_bl_props.cmd_base = 0x0100;
3100                 sony_nc_backlight_ng_read_limits(0x12f, &sony_bl_props);
3101                 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
3102
3103         } else if (sony_find_snc_handle(0x137) >= 0) {
3104                 ops = &sony_backlight_ng_ops;
3105                 sony_bl_props.cmd_base = 0x0100;
3106                 sony_nc_backlight_ng_read_limits(0x137, &sony_bl_props);
3107                 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
3108
3109         } else if (sony_find_snc_handle(0x143) >= 0) {
3110                 ops = &sony_backlight_ng_ops;
3111                 sony_bl_props.cmd_base = 0x3000;
3112                 sony_nc_backlight_ng_read_limits(0x143, &sony_bl_props);
3113                 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
3114
3115         } else if (sony_find_snc_handle(0x14b) >= 0) {
3116                 ops = &sony_backlight_ng_ops;
3117                 sony_bl_props.cmd_base = 0x3000;
3118                 sony_nc_backlight_ng_read_limits(0x14b, &sony_bl_props);
3119                 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
3120
3121         } else if (sony_find_snc_handle(0x14c) >= 0) {
3122                 ops = &sony_backlight_ng_ops;
3123                 sony_bl_props.cmd_base = 0x3000;
3124                 sony_nc_backlight_ng_read_limits(0x14c, &sony_bl_props);
3125                 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
3126
3127         } else if (acpi_has_method(sony_nc_acpi_handle, "GBRT")) {
3128                 ops = &sony_backlight_ops;
3129                 max_brightness = SONY_MAX_BRIGHTNESS - 1;
3130
3131         } else
3132                 return;
3133
3134         memset(&props, 0, sizeof(struct backlight_properties));
3135         props.type = BACKLIGHT_PLATFORM;
3136         props.max_brightness = max_brightness;
3137         sony_bl_props.dev = backlight_device_register("sony", NULL,
3138                                                       &sony_bl_props,
3139                                                       ops, &props);
3140
3141         if (IS_ERR(sony_bl_props.dev)) {
3142                 pr_warn("unable to register backlight device\n");
3143                 sony_bl_props.dev = NULL;
3144         } else
3145                 sony_bl_props.dev->props.brightness =
3146                         ops->get_brightness(sony_bl_props.dev);
3147 }
3148
3149 static void sony_nc_backlight_cleanup(void)
3150 {
3151         backlight_device_unregister(sony_bl_props.dev);
3152 }
3153
3154 static int sony_nc_add(struct acpi_device *device)
3155 {
3156         acpi_status status;
3157         int result = 0;
3158         struct sony_nc_value *item;
3159
3160         sony_nc_acpi_device = device;
3161         strcpy(acpi_device_class(device), "sony/hotkey");
3162
3163         sony_nc_acpi_handle = device->handle;
3164
3165         /* read device status */
3166         result = acpi_bus_get_status(device);
3167         /* bail IFF the above call was successful and the device is not present */
3168         if (!result && !device->status.present) {
3169                 dprintk("Device not present\n");
3170                 result = -ENODEV;
3171                 goto outwalk;
3172         }
3173
3174         result = sony_pf_add();
3175         if (result)
3176                 goto outpresent;
3177
3178         if (debug) {
3179                 status = acpi_walk_namespace(ACPI_TYPE_METHOD,
3180                                 sony_nc_acpi_handle, 1, sony_walk_callback,
3181                                 NULL, NULL, NULL);
3182                 if (ACPI_FAILURE(status)) {
3183                         pr_warn("unable to walk acpi resources\n");
3184                         result = -ENODEV;
3185                         goto outpresent;
3186                 }
3187         }
3188
3189         result = sony_laptop_setup_input(device);
3190         if (result) {
3191                 pr_err("Unable to create input devices\n");
3192                 goto outplatform;
3193         }
3194
3195         if (acpi_has_method(sony_nc_acpi_handle, "ECON")) {
3196                 int arg = 1;
3197                 if (sony_nc_int_call(sony_nc_acpi_handle, "ECON", &arg, NULL))
3198                         dprintk("ECON Method failed\n");
3199         }
3200
3201         if (acpi_has_method(sony_nc_acpi_handle, "SN00")) {
3202                 dprintk("Doing SNC setup\n");
3203                 /* retrieve the available handles */
3204                 result = sony_nc_handles_setup(sony_pf_device);
3205                 if (!result)
3206                         sony_nc_function_setup(device, sony_pf_device);
3207         }
3208
3209         if (acpi_video_get_backlight_type() == acpi_backlight_vendor)
3210                 sony_nc_backlight_setup();
3211
3212         /* create sony_pf sysfs attributes related to the SNC device */
3213         for (item = sony_nc_values; item->name; ++item) {
3214
3215                 if (!debug && item->debug)
3216                         continue;
3217
3218                 /* find the available acpiget as described in the DSDT */
3219                 for (; item->acpiget && *item->acpiget; ++item->acpiget) {
3220                         if (acpi_has_method(sony_nc_acpi_handle,
3221                                                         *item->acpiget)) {
3222                                 dprintk("Found %s getter: %s\n",
3223                                                 item->name, *item->acpiget);
3224                                 item->devattr.attr.mode |= S_IRUGO;
3225                                 break;
3226                         }
3227                 }
3228
3229                 /* find the available acpiset as described in the DSDT */
3230                 for (; item->acpiset && *item->acpiset; ++item->acpiset) {
3231                         if (acpi_has_method(sony_nc_acpi_handle,
3232                                                         *item->acpiset)) {
3233                                 dprintk("Found %s setter: %s\n",
3234                                                 item->name, *item->acpiset);
3235                                 item->devattr.attr.mode |= S_IWUSR;
3236                                 break;
3237                         }
3238                 }
3239
3240                 if (item->devattr.attr.mode != 0) {
3241                         result =
3242                             device_create_file(&sony_pf_device->dev,
3243                                                &item->devattr);
3244                         if (result)
3245                                 goto out_sysfs;
3246                 }
3247         }
3248
3249         pr_info("SNC setup done.\n");
3250         return 0;
3251
3252 out_sysfs:
3253         for (item = sony_nc_values; item->name; ++item) {
3254                 device_remove_file(&sony_pf_device->dev, &item->devattr);
3255         }
3256         sony_nc_backlight_cleanup();
3257         sony_nc_function_cleanup(sony_pf_device);
3258         sony_nc_handles_cleanup(sony_pf_device);
3259
3260 outplatform:
3261         sony_laptop_remove_input();
3262
3263 outpresent:
3264         sony_pf_remove();
3265
3266 outwalk:
3267         sony_nc_rfkill_cleanup();
3268         return result;
3269 }
3270
3271 static void sony_nc_remove(struct acpi_device *device)
3272 {
3273         struct sony_nc_value *item;
3274
3275         sony_nc_backlight_cleanup();
3276
3277         sony_nc_acpi_device = NULL;
3278
3279         for (item = sony_nc_values; item->name; ++item) {
3280                 device_remove_file(&sony_pf_device->dev, &item->devattr);
3281         }
3282
3283         sony_nc_function_cleanup(sony_pf_device);
3284         sony_nc_handles_cleanup(sony_pf_device);
3285         sony_pf_remove();
3286         sony_laptop_remove_input();
3287         dprintk(SONY_NC_DRIVER_NAME " removed.\n");
3288 }
3289
3290 static const struct acpi_device_id sony_device_ids[] __maybe_unused = {
3291         {SONY_NC_HID, 0},
3292         {SONY_PIC_HID, 0},
3293         {"", 0},
3294 };
3295 MODULE_DEVICE_TABLE(acpi, sony_device_ids);
3296
3297 static const struct acpi_device_id sony_nc_device_ids[] = {
3298         {SONY_NC_HID, 0},
3299         {"", 0},
3300 };
3301
3302 static struct acpi_driver sony_nc_driver = {
3303         .name = SONY_NC_DRIVER_NAME,
3304         .class = SONY_NC_CLASS,
3305         .ids = sony_nc_device_ids,
3306         .ops = {
3307                 .add = sony_nc_add,
3308                 .remove = sony_nc_remove,
3309                 .notify = sony_nc_notify,
3310                 },
3311         .drv.pm = &sony_nc_pm,
3312 };
3313
3314 /*********** SPIC (SNY6001) Device ***********/
3315
3316 #define SONYPI_DEVICE_TYPE1     0x00000001
3317 #define SONYPI_DEVICE_TYPE2     0x00000002
3318 #define SONYPI_DEVICE_TYPE3     0x00000004
3319
3320 #define SONYPI_TYPE1_OFFSET     0x04
3321 #define SONYPI_TYPE2_OFFSET     0x12
3322 #define SONYPI_TYPE3_OFFSET     0x12
3323
3324 struct sony_pic_ioport {
3325         struct acpi_resource_io io1;
3326         struct acpi_resource_io io2;
3327         struct list_head        list;
3328 };
3329
3330 struct sony_pic_irq {
3331         struct acpi_resource_irq        irq;
3332         struct list_head                list;
3333 };
3334
3335 struct sonypi_eventtypes {
3336         u8                      data;
3337         unsigned long           mask;
3338         struct sonypi_event     *events;
3339 };
3340
3341 struct sony_pic_dev {
3342         struct acpi_device              *acpi_dev;
3343         struct sony_pic_irq             *cur_irq;
3344         struct sony_pic_ioport          *cur_ioport;
3345         struct list_head                interrupts;
3346         struct list_head                ioports;
3347         struct mutex                    lock;
3348         struct sonypi_eventtypes        *event_types;
3349         int                             (*handle_irq)(const u8, const u8);
3350         int                             model;
3351         u16                             evport_offset;
3352         u8                              camera_power;
3353         u8                              bluetooth_power;
3354         u8                              wwan_power;
3355 };
3356
3357 static struct sony_pic_dev spic_dev = {
3358         .interrupts     = LIST_HEAD_INIT(spic_dev.interrupts),
3359         .ioports        = LIST_HEAD_INIT(spic_dev.ioports),
3360 };
3361
3362 static int spic_drv_registered;
3363
3364 /* Event masks */
3365 #define SONYPI_JOGGER_MASK                      0x00000001
3366 #define SONYPI_CAPTURE_MASK                     0x00000002
3367 #define SONYPI_FNKEY_MASK                       0x00000004
3368 #define SONYPI_BLUETOOTH_MASK                   0x00000008
3369 #define SONYPI_PKEY_MASK                        0x00000010
3370 #define SONYPI_BACK_MASK                        0x00000020
3371 #define SONYPI_HELP_MASK                        0x00000040
3372 #define SONYPI_LID_MASK                         0x00000080
3373 #define SONYPI_ZOOM_MASK                        0x00000100
3374 #define SONYPI_THUMBPHRASE_MASK                 0x00000200
3375 #define SONYPI_MEYE_MASK                        0x00000400
3376 #define SONYPI_MEMORYSTICK_MASK                 0x00000800
3377 #define SONYPI_BATTERY_MASK                     0x00001000
3378 #define SONYPI_WIRELESS_MASK                    0x00002000
3379
3380 struct sonypi_event {
3381         u8      data;
3382         u8      event;
3383 };
3384
3385 /* The set of possible button release events */
3386 static struct sonypi_event sonypi_releaseev[] = {
3387         { 0x00, SONYPI_EVENT_ANYBUTTON_RELEASED },
3388         { 0, 0 }
3389 };
3390
3391 /* The set of possible jogger events  */
3392 static struct sonypi_event sonypi_joggerev[] = {
3393         { 0x1f, SONYPI_EVENT_JOGDIAL_UP },
3394         { 0x01, SONYPI_EVENT_JOGDIAL_DOWN },
3395         { 0x5f, SONYPI_EVENT_JOGDIAL_UP_PRESSED },
3396         { 0x41, SONYPI_EVENT_JOGDIAL_DOWN_PRESSED },
3397         { 0x1e, SONYPI_EVENT_JOGDIAL_FAST_UP },
3398         { 0x02, SONYPI_EVENT_JOGDIAL_FAST_DOWN },
3399         { 0x5e, SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED },
3400         { 0x42, SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED },
3401         { 0x1d, SONYPI_EVENT_JOGDIAL_VFAST_UP },
3402         { 0x03, SONYPI_EVENT_JOGDIAL_VFAST_DOWN },
3403         { 0x5d, SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED },
3404         { 0x43, SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED },
3405         { 0x40, SONYPI_EVENT_JOGDIAL_PRESSED },
3406         { 0, 0 }
3407 };
3408
3409 /* The set of possible capture button events */
3410 static struct sonypi_event sonypi_captureev[] = {
3411         { 0x05, SONYPI_EVENT_CAPTURE_PARTIALPRESSED },
3412         { 0x07, SONYPI_EVENT_CAPTURE_PRESSED },
3413         { 0x40, SONYPI_EVENT_CAPTURE_PRESSED },
3414         { 0x01, SONYPI_EVENT_CAPTURE_PARTIALRELEASED },
3415         { 0, 0 }
3416 };
3417
3418 /* The set of possible fnkeys events */
3419 static struct sonypi_event sonypi_fnkeyev[] = {
3420         { 0x10, SONYPI_EVENT_FNKEY_ESC },
3421         { 0x11, SONYPI_EVENT_FNKEY_F1 },
3422         { 0x12, SONYPI_EVENT_FNKEY_F2 },
3423         { 0x13, SONYPI_EVENT_FNKEY_F3 },
3424         { 0x14, SONYPI_EVENT_FNKEY_F4 },
3425         { 0x15, SONYPI_EVENT_FNKEY_F5 },
3426         { 0x16, SONYPI_EVENT_FNKEY_F6 },
3427         { 0x17, SONYPI_EVENT_FNKEY_F7 },
3428         { 0x18, SONYPI_EVENT_FNKEY_F8 },
3429         { 0x19, SONYPI_EVENT_FNKEY_F9 },
3430         { 0x1a, SONYPI_EVENT_FNKEY_F10 },
3431         { 0x1b, SONYPI_EVENT_FNKEY_F11 },
3432         { 0x1c, SONYPI_EVENT_FNKEY_F12 },
3433         { 0x1f, SONYPI_EVENT_FNKEY_RELEASED },
3434         { 0x21, SONYPI_EVENT_FNKEY_1 },
3435         { 0x22, SONYPI_EVENT_FNKEY_2 },
3436         { 0x31, SONYPI_EVENT_FNKEY_D },
3437         { 0x32, SONYPI_EVENT_FNKEY_E },
3438         { 0x33, SONYPI_EVENT_FNKEY_F },
3439         { 0x34, SONYPI_EVENT_FNKEY_S },
3440         { 0x35, SONYPI_EVENT_FNKEY_B },
3441         { 0x36, SONYPI_EVENT_FNKEY_ONLY },
3442         { 0, 0 }
3443 };
3444
3445 /* The set of possible program key events */
3446 static struct sonypi_event sonypi_pkeyev[] = {
3447         { 0x01, SONYPI_EVENT_PKEY_P1 },
3448         { 0x02, SONYPI_EVENT_PKEY_P2 },
3449         { 0x04, SONYPI_EVENT_PKEY_P3 },
3450         { 0x20, SONYPI_EVENT_PKEY_P1 },
3451         { 0, 0 }
3452 };
3453
3454 /* The set of possible bluetooth events */
3455 static struct sonypi_event sonypi_blueev[] = {
3456         { 0x55, SONYPI_EVENT_BLUETOOTH_PRESSED },
3457         { 0x59, SONYPI_EVENT_BLUETOOTH_ON },
3458         { 0x5a, SONYPI_EVENT_BLUETOOTH_OFF },
3459         { 0, 0 }
3460 };
3461
3462 /* The set of possible wireless events */
3463 static struct sonypi_event sonypi_wlessev[] = {
3464         { 0x59, SONYPI_EVENT_IGNORE },
3465         { 0x5a, SONYPI_EVENT_IGNORE },
3466         { 0, 0 }
3467 };
3468
3469 /* The set of possible back button events */
3470 static struct sonypi_event sonypi_backev[] = {
3471         { 0x20, SONYPI_EVENT_BACK_PRESSED },
3472         { 0, 0 }
3473 };
3474
3475 /* The set of possible help button events */
3476 static struct sonypi_event sonypi_helpev[] = {
3477         { 0x3b, SONYPI_EVENT_HELP_PRESSED },
3478         { 0, 0 }
3479 };
3480
3481
3482 /* The set of possible lid events */
3483 static struct sonypi_event sonypi_lidev[] = {
3484         { 0x51, SONYPI_EVENT_LID_CLOSED },
3485         { 0x50, SONYPI_EVENT_LID_OPENED },
3486         { 0, 0 }
3487 };
3488
3489 /* The set of possible zoom events */
3490 static struct sonypi_event sonypi_zoomev[] = {
3491         { 0x39, SONYPI_EVENT_ZOOM_PRESSED },
3492         { 0x10, SONYPI_EVENT_ZOOM_IN_PRESSED },
3493         { 0x20, SONYPI_EVENT_ZOOM_OUT_PRESSED },
3494         { 0x04, SONYPI_EVENT_ZOOM_PRESSED },
3495         { 0, 0 }
3496 };
3497
3498 /* The set of possible thumbphrase events */
3499 static struct sonypi_event sonypi_thumbphraseev[] = {
3500         { 0x3a, SONYPI_EVENT_THUMBPHRASE_PRESSED },
3501         { 0, 0 }
3502 };
3503
3504 /* The set of possible motioneye camera events */
3505 static struct sonypi_event sonypi_meyeev[] = {
3506         { 0x00, SONYPI_EVENT_MEYE_FACE },
3507         { 0x01, SONYPI_EVENT_MEYE_OPPOSITE },
3508         { 0, 0 }
3509 };
3510
3511 /* The set of possible memorystick events */
3512 static struct sonypi_event sonypi_memorystickev[] = {
3513         { 0x53, SONYPI_EVENT_MEMORYSTICK_INSERT },
3514         { 0x54, SONYPI_EVENT_MEMORYSTICK_EJECT },
3515         { 0, 0 }
3516 };
3517
3518 /* The set of possible battery events */
3519 static struct sonypi_event sonypi_batteryev[] = {
3520         { 0x20, SONYPI_EVENT_BATTERY_INSERT },
3521         { 0x30, SONYPI_EVENT_BATTERY_REMOVE },
3522         { 0, 0 }
3523 };
3524
3525 /* The set of possible volume events */
3526 static struct sonypi_event sonypi_volumeev[] = {
3527         { 0x01, SONYPI_EVENT_VOLUME_INC_PRESSED },
3528         { 0x02, SONYPI_EVENT_VOLUME_DEC_PRESSED },
3529         { 0, 0 }
3530 };
3531
3532 /* The set of possible brightness events */
3533 static struct sonypi_event sonypi_brightnessev[] = {
3534         { 0x80, SONYPI_EVENT_BRIGHTNESS_PRESSED },
3535         { 0, 0 }
3536 };
3537
3538 static struct sonypi_eventtypes type1_events[] = {
3539         { 0, 0xffffffff, sonypi_releaseev },
3540         { 0x70, SONYPI_MEYE_MASK, sonypi_meyeev },
3541         { 0x30, SONYPI_LID_MASK, sonypi_lidev },
3542         { 0x60, SONYPI_CAPTURE_MASK, sonypi_captureev },
3543         { 0x10, SONYPI_JOGGER_MASK, sonypi_joggerev },
3544         { 0x20, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
3545         { 0x30, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
3546         { 0x40, SONYPI_PKEY_MASK, sonypi_pkeyev },
3547         { 0x30, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
3548         { 0x40, SONYPI_BATTERY_MASK, sonypi_batteryev },
3549         { 0 },
3550 };
3551 static struct sonypi_eventtypes type2_events[] = {
3552         { 0, 0xffffffff, sonypi_releaseev },
3553         { 0x38, SONYPI_LID_MASK, sonypi_lidev },
3554         { 0x11, SONYPI_JOGGER_MASK, sonypi_joggerev },
3555         { 0x61, SONYPI_CAPTURE_MASK, sonypi_captureev },
3556         { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
3557         { 0x31, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
3558         { 0x08, SONYPI_PKEY_MASK, sonypi_pkeyev },
3559         { 0x11, SONYPI_BACK_MASK, sonypi_backev },
3560         { 0x21, SONYPI_HELP_MASK, sonypi_helpev },
3561         { 0x21, SONYPI_ZOOM_MASK, sonypi_zoomev },
3562         { 0x20, SONYPI_THUMBPHRASE_MASK, sonypi_thumbphraseev },
3563         { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
3564         { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
3565         { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
3566         { 0 },
3567 };
3568 static struct sonypi_eventtypes type3_events[] = {
3569         { 0, 0xffffffff, sonypi_releaseev },
3570         { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
3571         { 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
3572         { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
3573         { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
3574         { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
3575         { 0x05, SONYPI_PKEY_MASK, sonypi_pkeyev },
3576         { 0x05, SONYPI_ZOOM_MASK, sonypi_zoomev },
3577         { 0x05, SONYPI_CAPTURE_MASK, sonypi_captureev },
3578         { 0x05, SONYPI_PKEY_MASK, sonypi_volumeev },
3579         { 0x05, SONYPI_PKEY_MASK, sonypi_brightnessev },
3580         { 0 },
3581 };
3582
3583 /* low level spic calls */
3584 #define ITERATIONS_LONG         10000
3585 #define ITERATIONS_SHORT        10
3586 #define wait_on_command(command, iterations) {                          \
3587         unsigned int n = iterations;                                    \
3588         while (--n && (command))                                        \
3589                 udelay(1);                                              \
3590         if (!n)                                                         \
3591                 dprintk("command failed at %s : %s (line %d)\n",        \
3592                                 __FILE__, __func__, __LINE__);  \
3593 }
3594
3595 static u8 sony_pic_call1(u8 dev)
3596 {
3597         u8 v1, v2;
3598
3599         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
3600                         ITERATIONS_LONG);
3601         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
3602         v1 = inb_p(spic_dev.cur_ioport->io1.minimum + 4);
3603         v2 = inb_p(spic_dev.cur_ioport->io1.minimum);
3604         dprintk("sony_pic_call1(0x%.2x): 0x%.4x\n", dev, (v2 << 8) | v1);
3605         return v2;
3606 }
3607
3608 static u8 sony_pic_call2(u8 dev, u8 fn)
3609 {
3610         u8 v1;
3611
3612         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
3613                         ITERATIONS_LONG);
3614         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
3615         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
3616                         ITERATIONS_LONG);
3617         outb(fn, spic_dev.cur_ioport->io1.minimum);
3618         v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
3619         dprintk("sony_pic_call2(0x%.2x - 0x%.2x): 0x%.4x\n", dev, fn, v1);
3620         return v1;
3621 }
3622
3623 static u8 sony_pic_call3(u8 dev, u8 fn, u8 v)
3624 {
3625         u8 v1;
3626
3627         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
3628         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
3629         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
3630         outb(fn, spic_dev.cur_ioport->io1.minimum);
3631         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
3632         outb(v, spic_dev.cur_ioport->io1.minimum);
3633         v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
3634         dprintk("sony_pic_call3(0x%.2x - 0x%.2x - 0x%.2x): 0x%.4x\n",
3635                         dev, fn, v, v1);
3636         return v1;
3637 }
3638
3639 /*
3640  * minidrivers for SPIC models
3641  */
3642 static int type3_handle_irq(const u8 data_mask, const u8 ev)
3643 {
3644         /*
3645          * 0x31 could mean we have to take some extra action and wait for
3646          * the next irq for some Type3 models, it will generate a new
3647          * irq and we can read new data from the device:
3648          *  - 0x5c and 0x5f requires 0xA0
3649          *  - 0x61 requires 0xB3
3650          */
3651         if (data_mask == 0x31) {
3652                 if (ev == 0x5c || ev == 0x5f)
3653                         sony_pic_call1(0xA0);
3654                 else if (ev == 0x61)
3655                         sony_pic_call1(0xB3);
3656                 return 0;
3657         }
3658         return 1;
3659 }
3660
3661 static void sony_pic_detect_device_type(struct sony_pic_dev *dev)
3662 {
3663         struct pci_dev *pcidev;
3664
3665         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3666                         PCI_DEVICE_ID_INTEL_82371AB_3, NULL);
3667         if (pcidev) {
3668                 dev->model = SONYPI_DEVICE_TYPE1;
3669                 dev->evport_offset = SONYPI_TYPE1_OFFSET;
3670                 dev->event_types = type1_events;
3671                 goto out;
3672         }
3673
3674         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3675                         PCI_DEVICE_ID_INTEL_ICH6_1, NULL);
3676         if (pcidev) {
3677                 dev->model = SONYPI_DEVICE_TYPE2;
3678                 dev->evport_offset = SONYPI_TYPE2_OFFSET;
3679                 dev->event_types = type2_events;
3680                 goto out;
3681         }
3682
3683         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3684                         PCI_DEVICE_ID_INTEL_ICH7_1, NULL);
3685         if (pcidev) {
3686                 dev->model = SONYPI_DEVICE_TYPE3;
3687                 dev->handle_irq = type3_handle_irq;
3688                 dev->evport_offset = SONYPI_TYPE3_OFFSET;
3689                 dev->event_types = type3_events;
3690                 goto out;
3691         }
3692
3693         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3694                         PCI_DEVICE_ID_INTEL_ICH8_4, NULL);
3695         if (pcidev) {
3696                 dev->model = SONYPI_DEVICE_TYPE3;
3697                 dev->handle_irq = type3_handle_irq;
3698                 dev->evport_offset = SONYPI_TYPE3_OFFSET;
3699                 dev->event_types = type3_events;
3700                 goto out;
3701         }
3702
3703         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3704                         PCI_DEVICE_ID_INTEL_ICH9_1, NULL);
3705         if (pcidev) {
3706                 dev->model = SONYPI_DEVICE_TYPE3;
3707                 dev->handle_irq = type3_handle_irq;
3708                 dev->evport_offset = SONYPI_TYPE3_OFFSET;
3709                 dev->event_types = type3_events;
3710                 goto out;
3711         }
3712
3713         /* default */
3714         dev->model = SONYPI_DEVICE_TYPE2;
3715         dev->evport_offset = SONYPI_TYPE2_OFFSET;
3716         dev->event_types = type2_events;
3717
3718 out:
3719         pci_dev_put(pcidev);
3720
3721         pr_info("detected Type%d model\n",
3722                 dev->model == SONYPI_DEVICE_TYPE1 ? 1 :
3723                 dev->model == SONYPI_DEVICE_TYPE2 ? 2 : 3);
3724 }
3725
3726 /* camera tests and poweron/poweroff */
3727 #define SONYPI_CAMERA_PICTURE           5
3728 #define SONYPI_CAMERA_CONTROL           0x10
3729
3730 #define SONYPI_CAMERA_BRIGHTNESS                0
3731 #define SONYPI_CAMERA_CONTRAST                  1
3732 #define SONYPI_CAMERA_HUE                       2
3733 #define SONYPI_CAMERA_COLOR                     3
3734 #define SONYPI_CAMERA_SHARPNESS                 4
3735
3736 #define SONYPI_CAMERA_EXPOSURE_MASK             0xC
3737 #define SONYPI_CAMERA_WHITE_BALANCE_MASK        0x3
3738 #define SONYPI_CAMERA_PICTURE_MODE_MASK         0x30
3739 #define SONYPI_CAMERA_MUTE_MASK                 0x40
3740
3741 /* the rest don't need a loop until not 0xff */
3742 #define SONYPI_CAMERA_AGC                       6
3743 #define SONYPI_CAMERA_AGC_MASK                  0x30
3744 #define SONYPI_CAMERA_SHUTTER_MASK              0x7
3745
3746 #define SONYPI_CAMERA_SHUTDOWN_REQUEST          7
3747 #define SONYPI_CAMERA_CONTROL                   0x10
3748
3749 #define SONYPI_CAMERA_STATUS                    7
3750 #define SONYPI_CAMERA_STATUS_READY              0x2
3751 #define SONYPI_CAMERA_STATUS_POSITION           0x4
3752
3753 #define SONYPI_DIRECTION_BACKWARDS              0x4
3754
3755 #define SONYPI_CAMERA_REVISION                  8
3756 #define SONYPI_CAMERA_ROMVERSION                9
3757
3758 static int __sony_pic_camera_ready(void)
3759 {
3760         u8 v;
3761
3762         v = sony_pic_call2(0x8f, SONYPI_CAMERA_STATUS);
3763         return (v != 0xff && (v & SONYPI_CAMERA_STATUS_READY));
3764 }
3765
3766 static int __sony_pic_camera_off(void)
3767 {
3768         if (!camera) {
3769                 pr_warn("camera control not enabled\n");
3770                 return -ENODEV;
3771         }
3772
3773         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE,
3774                                 SONYPI_CAMERA_MUTE_MASK),
3775                         ITERATIONS_SHORT);
3776
3777         if (spic_dev.camera_power) {
3778                 sony_pic_call2(0x91, 0);
3779                 spic_dev.camera_power = 0;
3780         }
3781         return 0;
3782 }
3783
3784 static int __sony_pic_camera_on(void)
3785 {
3786         int i, j, x;
3787
3788         if (!camera) {
3789                 pr_warn("camera control not enabled\n");
3790                 return -ENODEV;
3791         }
3792
3793         if (spic_dev.camera_power)
3794                 return 0;
3795
3796         for (j = 5; j > 0; j--) {
3797
3798                 for (x = 0; x < 100 && sony_pic_call2(0x91, 0x1); x++)
3799                         msleep(10);
3800                 sony_pic_call1(0x93);
3801
3802                 for (i = 400; i > 0; i--) {
3803                         if (__sony_pic_camera_ready())
3804                                 break;
3805                         msleep(10);
3806                 }
3807                 if (i)
3808                         break;
3809         }
3810
3811         if (j == 0) {
3812                 pr_warn("failed to power on camera\n");
3813                 return -ENODEV;
3814         }
3815
3816         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTROL,
3817                                 0x5a),
3818                         ITERATIONS_SHORT);
3819
3820         spic_dev.camera_power = 1;
3821         return 0;
3822 }
3823
3824 /* External camera command (exported to the motion eye v4l driver) */
3825 int sony_pic_camera_command(int command, u8 value)
3826 {
3827         if (!camera)
3828                 return -EIO;
3829
3830         mutex_lock(&spic_dev.lock);
3831
3832         switch (command) {
3833         case SONY_PIC_COMMAND_SETCAMERA:
3834                 if (value)
3835                         __sony_pic_camera_on();
3836                 else
3837                         __sony_pic_camera_off();
3838                 break;
3839         case SONY_PIC_COMMAND_SETCAMERABRIGHTNESS:
3840                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_BRIGHTNESS, value),
3841                                 ITERATIONS_SHORT);
3842                 break;
3843         case SONY_PIC_COMMAND_SETCAMERACONTRAST:
3844                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTRAST, value),
3845                                 ITERATIONS_SHORT);
3846                 break;
3847         case SONY_PIC_COMMAND_SETCAMERAHUE:
3848                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_HUE, value),
3849                                 ITERATIONS_SHORT);
3850                 break;
3851         case SONY_PIC_COMMAND_SETCAMERACOLOR:
3852                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_COLOR, value),
3853                                 ITERATIONS_SHORT);
3854                 break;
3855         case SONY_PIC_COMMAND_SETCAMERASHARPNESS:
3856                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_SHARPNESS, value),
3857                                 ITERATIONS_SHORT);
3858                 break;
3859         case SONY_PIC_COMMAND_SETCAMERAPICTURE:
3860                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE, value),
3861                                 ITERATIONS_SHORT);
3862                 break;
3863         case SONY_PIC_COMMAND_SETCAMERAAGC:
3864                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_AGC, value),
3865                                 ITERATIONS_SHORT);
3866                 break;
3867         default:
3868                 pr_err("sony_pic_camera_command invalid: %d\n", command);
3869                 break;
3870         }
3871         mutex_unlock(&spic_dev.lock);
3872         return 0;
3873 }
3874 EXPORT_SYMBOL(sony_pic_camera_command);
3875
3876 /* gprs/edge modem (SZ460N and SZ210P), thanks to Joshua Wise */
3877 static void __sony_pic_set_wwanpower(u8 state)
3878 {
3879         state = !!state;
3880         if (spic_dev.wwan_power == state)
3881                 return;
3882         sony_pic_call2(0xB0, state);
3883         sony_pic_call1(0x82);
3884         spic_dev.wwan_power = state;
3885 }
3886
3887 static ssize_t sony_pic_wwanpower_store(struct device *dev,
3888                 struct device_attribute *attr,
3889                 const char *buffer, size_t count)
3890 {
3891         unsigned long value;
3892         if (count > 31)
3893                 return -EINVAL;
3894
3895         if (kstrtoul(buffer, 10, &value))
3896                 return -EINVAL;
3897
3898         mutex_lock(&spic_dev.lock);
3899         __sony_pic_set_wwanpower(value);
3900         mutex_unlock(&spic_dev.lock);
3901
3902         return count;
3903 }
3904
3905 static ssize_t sony_pic_wwanpower_show(struct device *dev,
3906                 struct device_attribute *attr, char *buffer)
3907 {
3908         ssize_t count;
3909         mutex_lock(&spic_dev.lock);
3910         count = sysfs_emit(buffer, "%d\n", spic_dev.wwan_power);
3911         mutex_unlock(&spic_dev.lock);
3912         return count;
3913 }
3914
3915 /* bluetooth subsystem power state */
3916 static void __sony_pic_set_bluetoothpower(u8 state)
3917 {
3918         state = !!state;
3919         if (spic_dev.bluetooth_power == state)
3920                 return;
3921         sony_pic_call2(0x96, state);
3922         sony_pic_call1(0x82);
3923         spic_dev.bluetooth_power = state;
3924 }
3925
3926 static ssize_t sony_pic_bluetoothpower_store(struct device *dev,
3927                 struct device_attribute *attr,
3928                 const char *buffer, size_t count)
3929 {
3930         unsigned long value;
3931         if (count > 31)
3932                 return -EINVAL;
3933
3934         if (kstrtoul(buffer, 10, &value))
3935                 return -EINVAL;
3936
3937         mutex_lock(&spic_dev.lock);
3938         __sony_pic_set_bluetoothpower(value);
3939         mutex_unlock(&spic_dev.lock);
3940
3941         return count;
3942 }
3943
3944 static ssize_t sony_pic_bluetoothpower_show(struct device *dev,
3945                 struct device_attribute *attr, char *buffer)
3946 {
3947         ssize_t count = 0;
3948         mutex_lock(&spic_dev.lock);
3949         count = sysfs_emit(buffer, "%d\n", spic_dev.bluetooth_power);
3950         mutex_unlock(&spic_dev.lock);
3951         return count;
3952 }
3953
3954 /* fan speed */
3955 /* FAN0 information (reverse engineered from ACPI tables) */
3956 #define SONY_PIC_FAN0_STATUS    0x93
3957 static int sony_pic_set_fanspeed(unsigned long value)
3958 {
3959         return ec_write(SONY_PIC_FAN0_STATUS, value);
3960 }
3961
3962 static int sony_pic_get_fanspeed(u8 *value)
3963 {
3964         return ec_read(SONY_PIC_FAN0_STATUS, value);
3965 }
3966
3967 static ssize_t sony_pic_fanspeed_store(struct device *dev,
3968                 struct device_attribute *attr,
3969                 const char *buffer, size_t count)
3970 {
3971         unsigned long value;
3972         if (count > 31)
3973                 return -EINVAL;
3974
3975         if (kstrtoul(buffer, 10, &value))
3976                 return -EINVAL;
3977
3978         if (sony_pic_set_fanspeed(value))
3979                 return -EIO;
3980
3981         return count;
3982 }
3983
3984 static ssize_t sony_pic_fanspeed_show(struct device *dev,
3985                 struct device_attribute *attr, char *buffer)
3986 {
3987         u8 value = 0;
3988         if (sony_pic_get_fanspeed(&value))
3989                 return -EIO;
3990
3991         return sysfs_emit(buffer, "%d\n", value);
3992 }
3993
3994 #define SPIC_ATTR(_name, _mode)                                 \
3995 struct device_attribute spic_attr_##_name = __ATTR(_name,       \
3996                 _mode, sony_pic_## _name ##_show,               \
3997                 sony_pic_## _name ##_store)
3998
3999 static SPIC_ATTR(bluetoothpower, 0644);
4000 static SPIC_ATTR(wwanpower, 0644);
4001 static SPIC_ATTR(fanspeed, 0644);
4002
4003 static struct attribute *spic_attributes[] = {
4004         &spic_attr_bluetoothpower.attr,
4005         &spic_attr_wwanpower.attr,
4006         &spic_attr_fanspeed.attr,
4007         NULL
4008 };
4009
4010 static const struct attribute_group spic_attribute_group = {
4011         .attrs = spic_attributes
4012 };
4013
4014 /******** SONYPI compatibility **********/
4015 #ifdef CONFIG_SONYPI_COMPAT
4016
4017 /* battery / brightness / temperature  addresses */
4018 #define SONYPI_BAT_FLAGS        0x81
4019 #define SONYPI_LCD_LIGHT        0x96
4020 #define SONYPI_BAT1_PCTRM       0xa0
4021 #define SONYPI_BAT1_LEFT        0xa2
4022 #define SONYPI_BAT1_MAXRT       0xa4
4023 #define SONYPI_BAT2_PCTRM       0xa8
4024 #define SONYPI_BAT2_LEFT        0xaa
4025 #define SONYPI_BAT2_MAXRT       0xac
4026 #define SONYPI_BAT1_MAXTK       0xb0
4027 #define SONYPI_BAT1_FULL        0xb2
4028 #define SONYPI_BAT2_MAXTK       0xb8
4029 #define SONYPI_BAT2_FULL        0xba
4030 #define SONYPI_TEMP_STATUS      0xC1
4031
4032 struct sonypi_compat_s {
4033         struct fasync_struct    *fifo_async;
4034         struct kfifo            fifo;
4035         spinlock_t              fifo_lock;
4036         wait_queue_head_t       fifo_proc_list;
4037         atomic_t                open_count;
4038 };
4039 static struct sonypi_compat_s sonypi_compat = {
4040         .open_count = ATOMIC_INIT(0),
4041 };
4042
4043 static int sonypi_misc_fasync(int fd, struct file *filp, int on)
4044 {
4045         return fasync_helper(fd, filp, on, &sonypi_compat.fifo_async);
4046 }
4047
4048 static int sonypi_misc_release(struct inode *inode, struct file *file)
4049 {
4050         atomic_dec(&sonypi_compat.open_count);
4051         return 0;
4052 }
4053
4054 static int sonypi_misc_open(struct inode *inode, struct file *file)
4055 {
4056         /* Flush input queue on first open */
4057         unsigned long flags;
4058
4059         spin_lock_irqsave(&sonypi_compat.fifo_lock, flags);
4060
4061         if (atomic_inc_return(&sonypi_compat.open_count) == 1)
4062                 kfifo_reset(&sonypi_compat.fifo);
4063
4064         spin_unlock_irqrestore(&sonypi_compat.fifo_lock, flags);
4065
4066         return 0;
4067 }
4068
4069 static ssize_t sonypi_misc_read(struct file *file, char __user *buf,
4070                                 size_t count, loff_t *pos)
4071 {
4072         ssize_t ret;
4073         unsigned char c;
4074
4075         if ((kfifo_len(&sonypi_compat.fifo) == 0) &&
4076             (file->f_flags & O_NONBLOCK))
4077                 return -EAGAIN;
4078
4079         ret = wait_event_interruptible(sonypi_compat.fifo_proc_list,
4080                                        kfifo_len(&sonypi_compat.fifo) != 0);
4081         if (ret)
4082                 return ret;
4083
4084         while (ret < count &&
4085                (kfifo_out_locked(&sonypi_compat.fifo, &c, sizeof(c),
4086                           &sonypi_compat.fifo_lock) == sizeof(c))) {
4087                 if (put_user(c, buf++))
4088                         return -EFAULT;
4089                 ret++;
4090         }
4091
4092         if (ret > 0) {
4093                 struct inode *inode = file_inode(file);
4094                 inode_set_atime_to_ts(inode, current_time(inode));
4095         }
4096
4097         return ret;
4098 }
4099
4100 static __poll_t sonypi_misc_poll(struct file *file, poll_table *wait)
4101 {
4102         poll_wait(file, &sonypi_compat.fifo_proc_list, wait);
4103         if (kfifo_len(&sonypi_compat.fifo))
4104                 return EPOLLIN | EPOLLRDNORM;
4105         return 0;
4106 }
4107
4108 static int ec_read16(u8 addr, u16 *value)
4109 {
4110         u8 val_lb, val_hb;
4111         if (ec_read(addr, &val_lb))
4112                 return -1;
4113         if (ec_read(addr + 1, &val_hb))
4114                 return -1;
4115         *value = val_lb | (val_hb << 8);
4116         return 0;
4117 }
4118
4119 static long sonypi_misc_ioctl(struct file *fp, unsigned int cmd,
4120                                                         unsigned long arg)
4121 {
4122         int ret = 0;
4123         void __user *argp = (void __user *)arg;
4124         u8 val8;
4125         u16 val16;
4126         int value;
4127
4128         mutex_lock(&spic_dev.lock);
4129         switch (cmd) {
4130         case SONYPI_IOCGBRT:
4131                 if (sony_bl_props.dev == NULL) {
4132                         ret = -EIO;
4133                         break;
4134                 }
4135                 if (sony_nc_int_call(sony_nc_acpi_handle, "GBRT", NULL,
4136                                         &value)) {
4137                         ret = -EIO;
4138                         break;
4139                 }
4140                 val8 = ((value & 0xff) - 1) << 5;
4141                 if (copy_to_user(argp, &val8, sizeof(val8)))
4142                                 ret = -EFAULT;
4143                 break;
4144         case SONYPI_IOCSBRT:
4145                 if (sony_bl_props.dev == NULL) {
4146                         ret = -EIO;
4147                         break;
4148                 }
4149                 if (copy_from_user(&val8, argp, sizeof(val8))) {
4150                         ret = -EFAULT;
4151                         break;
4152                 }
4153                 value = (val8 >> 5) + 1;
4154                 if (sony_nc_int_call(sony_nc_acpi_handle, "SBRT", &value,
4155                                         NULL)) {
4156                         ret = -EIO;
4157                         break;
4158                 }
4159                 /* sync the backlight device status */
4160                 sony_bl_props.dev->props.brightness =
4161                     sony_backlight_get_brightness(sony_bl_props.dev);
4162                 break;
4163         case SONYPI_IOCGBAT1CAP:
4164                 if (ec_read16(SONYPI_BAT1_FULL, &val16)) {
4165                         ret = -EIO;
4166                         break;
4167                 }
4168                 if (copy_to_user(argp, &val16, sizeof(val16)))
4169                         ret = -EFAULT;
4170                 break;
4171         case SONYPI_IOCGBAT1REM:
4172                 if (ec_read16(SONYPI_BAT1_LEFT, &val16)) {
4173                         ret = -EIO;
4174                         break;
4175                 }
4176                 if (copy_to_user(argp, &val16, sizeof(val16)))
4177                         ret = -EFAULT;
4178                 break;
4179         case SONYPI_IOCGBAT2CAP:
4180                 if (ec_read16(SONYPI_BAT2_FULL, &val16)) {
4181                         ret = -EIO;
4182                         break;
4183                 }
4184                 if (copy_to_user(argp, &val16, sizeof(val16)))
4185                         ret = -EFAULT;
4186                 break;
4187         case SONYPI_IOCGBAT2REM:
4188                 if (ec_read16(SONYPI_BAT2_LEFT, &val16)) {
4189                         ret = -EIO;
4190                         break;
4191                 }
4192                 if (copy_to_user(argp, &val16, sizeof(val16)))
4193                         ret = -EFAULT;
4194                 break;
4195         case SONYPI_IOCGBATFLAGS:
4196                 if (ec_read(SONYPI_BAT_FLAGS, &val8)) {
4197                         ret = -EIO;
4198                         break;
4199                 }
4200                 val8 &= 0x07;
4201                 if (copy_to_user(argp, &val8, sizeof(val8)))
4202                         ret = -EFAULT;
4203                 break;
4204         case SONYPI_IOCGBLUE:
4205                 val8 = spic_dev.bluetooth_power;
4206                 if (copy_to_user(argp, &val8, sizeof(val8)))
4207                         ret = -EFAULT;
4208                 break;
4209         case SONYPI_IOCSBLUE:
4210                 if (copy_from_user(&val8, argp, sizeof(val8))) {
4211                         ret = -EFAULT;
4212                         break;
4213                 }
4214                 __sony_pic_set_bluetoothpower(val8);
4215                 break;
4216         /* FAN Controls */
4217         case SONYPI_IOCGFAN:
4218                 if (sony_pic_get_fanspeed(&val8)) {
4219                         ret = -EIO;
4220                         break;
4221                 }
4222                 if (copy_to_user(argp, &val8, sizeof(val8)))
4223                         ret = -EFAULT;
4224                 break;
4225         case SONYPI_IOCSFAN:
4226                 if (copy_from_user(&val8, argp, sizeof(val8))) {
4227                         ret = -EFAULT;
4228                         break;
4229                 }
4230                 if (sony_pic_set_fanspeed(val8))
4231                         ret = -EIO;
4232                 break;
4233         /* GET Temperature (useful under APM) */
4234         case SONYPI_IOCGTEMP:
4235                 if (ec_read(SONYPI_TEMP_STATUS, &val8)) {
4236                         ret = -EIO;
4237                         break;
4238                 }
4239                 if (copy_to_user(argp, &val8, sizeof(val8)))
4240                         ret = -EFAULT;
4241                 break;
4242         default:
4243                 ret = -EINVAL;
4244         }
4245         mutex_unlock(&spic_dev.lock);
4246         return ret;
4247 }
4248
4249 static const struct file_operations sonypi_misc_fops = {
4250         .owner          = THIS_MODULE,
4251         .read           = sonypi_misc_read,
4252         .poll           = sonypi_misc_poll,
4253         .open           = sonypi_misc_open,
4254         .release        = sonypi_misc_release,
4255         .fasync         = sonypi_misc_fasync,
4256         .unlocked_ioctl = sonypi_misc_ioctl,
4257         .llseek         = noop_llseek,
4258 };
4259
4260 static struct miscdevice sonypi_misc_device = {
4261         .minor          = MISC_DYNAMIC_MINOR,
4262         .name           = "sonypi",
4263         .fops           = &sonypi_misc_fops,
4264 };
4265
4266 static void sonypi_compat_report_event(u8 event)
4267 {
4268         kfifo_in_locked(&sonypi_compat.fifo, (unsigned char *)&event,
4269                         sizeof(event), &sonypi_compat.fifo_lock);
4270         kill_fasync(&sonypi_compat.fifo_async, SIGIO, POLL_IN);
4271         wake_up_interruptible(&sonypi_compat.fifo_proc_list);
4272 }
4273
4274 static int sonypi_compat_init(void)
4275 {
4276         int error;
4277
4278         spin_lock_init(&sonypi_compat.fifo_lock);
4279         error =
4280          kfifo_alloc(&sonypi_compat.fifo, SONY_LAPTOP_BUF_SIZE, GFP_KERNEL);
4281         if (error) {
4282                 pr_err("kfifo_alloc failed\n");
4283                 return error;
4284         }
4285
4286         init_waitqueue_head(&sonypi_compat.fifo_proc_list);
4287
4288         if (minor != -1)
4289                 sonypi_misc_device.minor = minor;
4290         error = misc_register(&sonypi_misc_device);
4291         if (error) {
4292                 pr_err("misc_register failed\n");
4293                 goto err_free_kfifo;
4294         }
4295         if (minor == -1)
4296                 pr_info("device allocated minor is %d\n",
4297                         sonypi_misc_device.minor);
4298
4299         return 0;
4300
4301 err_free_kfifo:
4302         kfifo_free(&sonypi_compat.fifo);
4303         return error;
4304 }
4305
4306 static void sonypi_compat_exit(void)
4307 {
4308         misc_deregister(&sonypi_misc_device);
4309         kfifo_free(&sonypi_compat.fifo);
4310 }
4311 #else
4312 static int sonypi_compat_init(void) { return 0; }
4313 static void sonypi_compat_exit(void) { }
4314 static void sonypi_compat_report_event(u8 event) { }
4315 #endif /* CONFIG_SONYPI_COMPAT */
4316
4317 /*
4318  * ACPI callbacks
4319  */
4320 static acpi_status
4321 sony_pic_read_possible_resource(struct acpi_resource *resource, void *context)
4322 {
4323         u32 i;
4324         struct sony_pic_dev *dev = (struct sony_pic_dev *)context;
4325
4326         switch (resource->type) {
4327         case ACPI_RESOURCE_TYPE_START_DEPENDENT:
4328                 {
4329                         /* start IO enumeration */
4330                         struct sony_pic_ioport *ioport = kzalloc(sizeof(*ioport), GFP_KERNEL);
4331                         if (!ioport)
4332                                 return AE_ERROR;
4333
4334                         list_add(&ioport->list, &dev->ioports);
4335                         return AE_OK;
4336                 }
4337
4338         case ACPI_RESOURCE_TYPE_END_DEPENDENT:
4339                 /* end IO enumeration */
4340                 return AE_OK;
4341
4342         case ACPI_RESOURCE_TYPE_IRQ:
4343                 {
4344                         struct acpi_resource_irq *p = &resource->data.irq;
4345                         struct sony_pic_irq *interrupt = NULL;
4346                         if (!p->interrupt_count) {
4347                                 /*
4348                                  * IRQ descriptors may have no IRQ# bits set,
4349                                  * particularly those those w/ _STA disabled
4350                                  */
4351                                 dprintk("Blank IRQ resource\n");
4352                                 return AE_OK;
4353                         }
4354                         for (i = 0; i < p->interrupt_count; i++) {
4355                                 if (!p->interrupts[i]) {
4356                                         pr_warn("Invalid IRQ %d\n",
4357                                                 p->interrupts[i]);
4358                                         continue;
4359                                 }
4360                                 interrupt = kzalloc(sizeof(*interrupt),
4361                                                 GFP_KERNEL);
4362                                 if (!interrupt)
4363                                         return AE_ERROR;
4364
4365                                 list_add(&interrupt->list, &dev->interrupts);
4366                                 interrupt->irq.triggering = p->triggering;
4367                                 interrupt->irq.polarity = p->polarity;
4368                                 interrupt->irq.shareable = p->shareable;
4369                                 interrupt->irq.interrupt_count = 1;
4370                                 interrupt->irq.interrupts[0] = p->interrupts[i];
4371                         }
4372                         return AE_OK;
4373                 }
4374         case ACPI_RESOURCE_TYPE_IO:
4375                 {
4376                         struct acpi_resource_io *io = &resource->data.io;
4377                         struct sony_pic_ioport *ioport =
4378                                 list_first_entry(&dev->ioports, struct sony_pic_ioport, list);
4379                         if (!ioport->io1.minimum) {
4380                                 memcpy(&ioport->io1, io, sizeof(*io));
4381                                 dprintk("IO1 at 0x%.4x (0x%.2x)\n", ioport->io1.minimum,
4382                                                 ioport->io1.address_length);
4383                         }
4384                         else if (!ioport->io2.minimum) {
4385                                 memcpy(&ioport->io2, io, sizeof(*io));
4386                                 dprintk("IO2 at 0x%.4x (0x%.2x)\n", ioport->io2.minimum,
4387                                                 ioport->io2.address_length);
4388                         }
4389                         else {
4390                                 pr_err("Unknown SPIC Type, more than 2 IO Ports\n");
4391                                 return AE_ERROR;
4392                         }
4393                         return AE_OK;
4394                 }
4395
4396         case ACPI_RESOURCE_TYPE_END_TAG:
4397                 return AE_OK;
4398
4399         default:
4400                 dprintk("Resource %d isn't an IRQ nor an IO port\n",
4401                         resource->type);
4402                 return AE_CTRL_TERMINATE;
4403
4404         }
4405 }
4406
4407 static int sony_pic_possible_resources(struct acpi_device *device)
4408 {
4409         int result = 0;
4410         acpi_status status = AE_OK;
4411
4412         if (!device)
4413                 return -EINVAL;
4414
4415         /* get device status */
4416         /* see acpi_pci_link_get_current acpi_pci_link_get_possible */
4417         dprintk("Evaluating _STA\n");
4418         result = acpi_bus_get_status(device);
4419         if (result) {
4420                 pr_warn("Unable to read status\n");
4421                 goto end;
4422         }
4423
4424         if (!device->status.enabled)
4425                 dprintk("Device disabled\n");
4426         else
4427                 dprintk("Device enabled\n");
4428
4429         /*
4430          * Query and parse 'method'
4431          */
4432         dprintk("Evaluating %s\n", METHOD_NAME__PRS);
4433         status = acpi_walk_resources(device->handle, METHOD_NAME__PRS,
4434                         sony_pic_read_possible_resource, &spic_dev);
4435         if (ACPI_FAILURE(status)) {
4436                 pr_warn("Failure evaluating %s\n", METHOD_NAME__PRS);
4437                 result = -ENODEV;
4438         }
4439 end:
4440         return result;
4441 }
4442
4443 /*
4444  *  Disable the spic device by calling its _DIS method
4445  */
4446 static int sony_pic_disable(struct acpi_device *device)
4447 {
4448         acpi_status ret = acpi_evaluate_object(device->handle, "_DIS", NULL,
4449                                                NULL);
4450
4451         if (ACPI_FAILURE(ret) && ret != AE_NOT_FOUND)
4452                 return -ENXIO;
4453
4454         dprintk("Device disabled\n");
4455         return 0;
4456 }
4457
4458
4459 /*
4460  *  Based on drivers/acpi/pci_link.c:acpi_pci_link_set
4461  *
4462  *  Call _SRS to set current resources
4463  */
4464 static int sony_pic_enable(struct acpi_device *device,
4465                 struct sony_pic_ioport *ioport, struct sony_pic_irq *irq)
4466 {
4467         acpi_status status;
4468         int result = 0;
4469         /* Type 1 resource layout is:
4470          *    IO
4471          *    IO
4472          *    IRQNoFlags
4473          *    End
4474          *
4475          * Type 2 and 3 resource layout is:
4476          *    IO
4477          *    IRQNoFlags
4478          *    End
4479          */
4480         struct {
4481                 struct acpi_resource res1;
4482                 struct acpi_resource res2;
4483                 struct acpi_resource res3;
4484                 struct acpi_resource res4;
4485         } *resource;
4486         struct acpi_buffer buffer = { 0, NULL };
4487
4488         if (!ioport || !irq)
4489                 return -EINVAL;
4490
4491         /* init acpi_buffer */
4492         resource = kzalloc(sizeof(*resource) + 1, GFP_KERNEL);
4493         if (!resource)
4494                 return -ENOMEM;
4495
4496         buffer.length = sizeof(*resource) + 1;
4497         buffer.pointer = resource;
4498
4499         /* setup Type 1 resources */
4500         if (spic_dev.model == SONYPI_DEVICE_TYPE1) {
4501
4502                 /* setup io resources */
4503                 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
4504                 resource->res1.length = sizeof(struct acpi_resource);
4505                 memcpy(&resource->res1.data.io, &ioport->io1,
4506                                 sizeof(struct acpi_resource_io));
4507
4508                 resource->res2.type = ACPI_RESOURCE_TYPE_IO;
4509                 resource->res2.length = sizeof(struct acpi_resource);
4510                 memcpy(&resource->res2.data.io, &ioport->io2,
4511                                 sizeof(struct acpi_resource_io));
4512
4513                 /* setup irq resource */
4514                 resource->res3.type = ACPI_RESOURCE_TYPE_IRQ;
4515                 resource->res3.length = sizeof(struct acpi_resource);
4516                 memcpy(&resource->res3.data.irq, &irq->irq,
4517                                 sizeof(struct acpi_resource_irq));
4518                 /* we requested a shared irq */
4519                 resource->res3.data.irq.shareable = ACPI_SHARED;
4520
4521                 resource->res4.type = ACPI_RESOURCE_TYPE_END_TAG;
4522                 resource->res4.length = sizeof(struct acpi_resource);
4523         }
4524         /* setup Type 2/3 resources */
4525         else {
4526                 /* setup io resource */
4527                 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
4528                 resource->res1.length = sizeof(struct acpi_resource);
4529                 memcpy(&resource->res1.data.io, &ioport->io1,
4530                                 sizeof(struct acpi_resource_io));
4531
4532                 /* setup irq resource */
4533                 resource->res2.type = ACPI_RESOURCE_TYPE_IRQ;
4534                 resource->res2.length = sizeof(struct acpi_resource);
4535                 memcpy(&resource->res2.data.irq, &irq->irq,
4536                                 sizeof(struct acpi_resource_irq));
4537                 /* we requested a shared irq */
4538                 resource->res2.data.irq.shareable = ACPI_SHARED;
4539
4540                 resource->res3.type = ACPI_RESOURCE_TYPE_END_TAG;
4541                 resource->res3.length = sizeof(struct acpi_resource);
4542         }
4543
4544         /* Attempt to set the resource */
4545         dprintk("Evaluating _SRS\n");
4546         status = acpi_set_current_resources(device->handle, &buffer);
4547
4548         /* check for total failure */
4549         if (ACPI_FAILURE(status)) {
4550                 pr_err("Error evaluating _SRS\n");
4551                 result = -ENODEV;
4552                 goto end;
4553         }
4554
4555         /* Necessary device initializations calls (from sonypi) */
4556         sony_pic_call1(0x82);
4557         sony_pic_call2(0x81, 0xff);
4558         sony_pic_call1(compat ? 0x92 : 0x82);
4559
4560 end:
4561         kfree(resource);
4562         return result;
4563 }
4564
4565 /*****************
4566  *
4567  * ISR: some event is available
4568  *
4569  *****************/
4570 static irqreturn_t sony_pic_irq(int irq, void *dev_id)
4571 {
4572         int i, j;
4573         u8 ev = 0;
4574         u8 data_mask = 0;
4575         u8 device_event = 0;
4576
4577         struct sony_pic_dev *dev = (struct sony_pic_dev *) dev_id;
4578
4579         ev = inb_p(dev->cur_ioport->io1.minimum);
4580         if (dev->cur_ioport->io2.minimum)
4581                 data_mask = inb_p(dev->cur_ioport->io2.minimum);
4582         else
4583                 data_mask = inb_p(dev->cur_ioport->io1.minimum +
4584                                 dev->evport_offset);
4585
4586         dprintk("event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
4587                         ev, data_mask, dev->cur_ioport->io1.minimum,
4588                         dev->evport_offset);
4589
4590         if (ev == 0x00 || ev == 0xff)
4591                 return IRQ_HANDLED;
4592
4593         for (i = 0; dev->event_types[i].mask; i++) {
4594
4595                 if ((data_mask & dev->event_types[i].data) !=
4596                     dev->event_types[i].data)
4597                         continue;
4598
4599                 if (!(mask & dev->event_types[i].mask))
4600                         continue;
4601
4602                 for (j = 0; dev->event_types[i].events[j].event; j++) {
4603                         if (ev == dev->event_types[i].events[j].data) {
4604                                 device_event =
4605                                         dev->event_types[i].events[j].event;
4606                                 /* some events may require ignoring */
4607                                 if (!device_event)
4608                                         return IRQ_HANDLED;
4609                                 goto found;
4610                         }
4611                 }
4612         }
4613         /* Still not able to decode the event try to pass
4614          * it over to the minidriver
4615          */
4616         if (dev->handle_irq && dev->handle_irq(data_mask, ev) == 0)
4617                 return IRQ_HANDLED;
4618
4619         dprintk("unknown event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
4620                         ev, data_mask, dev->cur_ioport->io1.minimum,
4621                         dev->evport_offset);
4622         return IRQ_HANDLED;
4623
4624 found:
4625         sony_laptop_report_input_event(device_event);
4626         sonypi_compat_report_event(device_event);
4627         return IRQ_HANDLED;
4628 }
4629
4630 /*****************
4631  *
4632  *  ACPI driver
4633  *
4634  *****************/
4635 static void sony_pic_remove(struct acpi_device *device)
4636 {
4637         struct sony_pic_ioport *io, *tmp_io;
4638         struct sony_pic_irq *irq, *tmp_irq;
4639
4640         if (sony_pic_disable(device)) {
4641                 pr_err("Couldn't disable device\n");
4642                 return;
4643         }
4644
4645         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
4646         release_region(spic_dev.cur_ioport->io1.minimum,
4647                         spic_dev.cur_ioport->io1.address_length);
4648         if (spic_dev.cur_ioport->io2.minimum)
4649                 release_region(spic_dev.cur_ioport->io2.minimum,
4650                                 spic_dev.cur_ioport->io2.address_length);
4651
4652         sonypi_compat_exit();
4653
4654         sony_laptop_remove_input();
4655
4656         /* pf attrs */
4657         sysfs_remove_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
4658         sony_pf_remove();
4659
4660         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
4661                 list_del(&io->list);
4662                 kfree(io);
4663         }
4664         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
4665                 list_del(&irq->list);
4666                 kfree(irq);
4667         }
4668         spic_dev.cur_ioport = NULL;
4669         spic_dev.cur_irq = NULL;
4670
4671         dprintk(SONY_PIC_DRIVER_NAME " removed.\n");
4672 }
4673
4674 static int sony_pic_add(struct acpi_device *device)
4675 {
4676         int result;
4677         struct sony_pic_ioport *io, *tmp_io;
4678         struct sony_pic_irq *irq, *tmp_irq;
4679
4680         spic_dev.acpi_dev = device;
4681         strcpy(acpi_device_class(device), "sony/hotkey");
4682         sony_pic_detect_device_type(&spic_dev);
4683         mutex_init(&spic_dev.lock);
4684
4685         /* read _PRS resources */
4686         result = sony_pic_possible_resources(device);
4687         if (result) {
4688                 pr_err("Unable to read possible resources\n");
4689                 goto err_free_resources;
4690         }
4691
4692         /* setup input devices and helper fifo */
4693         result = sony_laptop_setup_input(device);
4694         if (result) {
4695                 pr_err("Unable to create input devices\n");
4696                 goto err_free_resources;
4697         }
4698
4699         result = sonypi_compat_init();
4700         if (result)
4701                 goto err_remove_input;
4702
4703         /* request io port */
4704         list_for_each_entry_reverse(io, &spic_dev.ioports, list) {
4705                 if (request_region(io->io1.minimum, io->io1.address_length,
4706                                         "Sony Programmable I/O Device")) {
4707                         dprintk("I/O port1: 0x%.4x (0x%.4x) + 0x%.2x\n",
4708                                         io->io1.minimum, io->io1.maximum,
4709                                         io->io1.address_length);
4710                         /* Type 1 have 2 ioports */
4711                         if (io->io2.minimum) {
4712                                 if (request_region(io->io2.minimum,
4713                                                 io->io2.address_length,
4714                                                 "Sony Programmable I/O Device")) {
4715                                         dprintk("I/O port2: 0x%.4x (0x%.4x) + 0x%.2x\n",
4716                                                         io->io2.minimum, io->io2.maximum,
4717                                                         io->io2.address_length);
4718                                         spic_dev.cur_ioport = io;
4719                                         break;
4720                                 }
4721                                 else {
4722                                         dprintk("Unable to get I/O port2: "
4723                                                         "0x%.4x (0x%.4x) + 0x%.2x\n",
4724                                                         io->io2.minimum, io->io2.maximum,
4725                                                         io->io2.address_length);
4726                                         release_region(io->io1.minimum,
4727                                                         io->io1.address_length);
4728                                 }
4729                         }
4730                         else {
4731                                 spic_dev.cur_ioport = io;
4732                                 break;
4733                         }
4734                 }
4735         }
4736         if (!spic_dev.cur_ioport) {
4737                 pr_err("Failed to request_region\n");
4738                 result = -ENODEV;
4739                 goto err_remove_compat;
4740         }
4741
4742         /* request IRQ */
4743         list_for_each_entry_reverse(irq, &spic_dev.interrupts, list) {
4744                 if (!request_irq(irq->irq.interrupts[0], sony_pic_irq,
4745                                         0, "sony-laptop", &spic_dev)) {
4746                         dprintk("IRQ: %d - triggering: %d - "
4747                                         "polarity: %d - shr: %d\n",
4748                                         irq->irq.interrupts[0],
4749                                         irq->irq.triggering,
4750                                         irq->irq.polarity,
4751                                         irq->irq.shareable);
4752                         spic_dev.cur_irq = irq;
4753                         break;
4754                 }
4755         }
4756         if (!spic_dev.cur_irq) {
4757                 pr_err("Failed to request_irq\n");
4758                 result = -ENODEV;
4759                 goto err_release_region;
4760         }
4761
4762         /* set resource status _SRS */
4763         result = sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
4764         if (result) {
4765                 pr_err("Couldn't enable device\n");
4766                 goto err_free_irq;
4767         }
4768
4769         spic_dev.bluetooth_power = -1;
4770         /* create device attributes */
4771         result = sony_pf_add();
4772         if (result)
4773                 goto err_disable_device;
4774
4775         result = sysfs_create_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
4776         if (result)
4777                 goto err_remove_pf;
4778
4779         pr_info("SPIC setup done.\n");
4780         return 0;
4781
4782 err_remove_pf:
4783         sony_pf_remove();
4784
4785 err_disable_device:
4786         sony_pic_disable(device);
4787
4788 err_free_irq:
4789         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
4790
4791 err_release_region:
4792         release_region(spic_dev.cur_ioport->io1.minimum,
4793                         spic_dev.cur_ioport->io1.address_length);
4794         if (spic_dev.cur_ioport->io2.minimum)
4795                 release_region(spic_dev.cur_ioport->io2.minimum,
4796                                 spic_dev.cur_ioport->io2.address_length);
4797
4798 err_remove_compat:
4799         sonypi_compat_exit();
4800
4801 err_remove_input:
4802         sony_laptop_remove_input();
4803
4804 err_free_resources:
4805         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
4806                 list_del(&io->list);
4807                 kfree(io);
4808         }
4809         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
4810                 list_del(&irq->list);
4811                 kfree(irq);
4812         }
4813         spic_dev.cur_ioport = NULL;
4814         spic_dev.cur_irq = NULL;
4815
4816         return result;
4817 }
4818
4819 #ifdef CONFIG_PM_SLEEP
4820 static int sony_pic_suspend(struct device *dev)
4821 {
4822         if (sony_pic_disable(to_acpi_device(dev)))
4823                 return -ENXIO;
4824         return 0;
4825 }
4826
4827 static int sony_pic_resume(struct device *dev)
4828 {
4829         sony_pic_enable(to_acpi_device(dev),
4830                         spic_dev.cur_ioport, spic_dev.cur_irq);
4831         return 0;
4832 }
4833 #endif
4834
4835 static SIMPLE_DEV_PM_OPS(sony_pic_pm, sony_pic_suspend, sony_pic_resume);
4836
4837 static const struct acpi_device_id sony_pic_device_ids[] = {
4838         {SONY_PIC_HID, 0},
4839         {"", 0},
4840 };
4841
4842 static struct acpi_driver sony_pic_driver = {
4843         .name = SONY_PIC_DRIVER_NAME,
4844         .class = SONY_PIC_CLASS,
4845         .ids = sony_pic_device_ids,
4846         .ops = {
4847                 .add = sony_pic_add,
4848                 .remove = sony_pic_remove,
4849                 },
4850         .drv.pm = &sony_pic_pm,
4851 };
4852
4853 static const struct dmi_system_id sonypi_dmi_table[] __initconst = {
4854         {
4855                 .ident = "Sony Vaio",
4856                 .matches = {
4857                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
4858                         DMI_MATCH(DMI_PRODUCT_NAME, "PCG-"),
4859                 },
4860         },
4861         {
4862                 .ident = "Sony Vaio",
4863                 .matches = {
4864                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
4865                         DMI_MATCH(DMI_PRODUCT_NAME, "VGN-"),
4866                 },
4867         },
4868         { }
4869 };
4870
4871 static int __init sony_laptop_init(void)
4872 {
4873         int result;
4874
4875         if (!no_spic && dmi_check_system(sonypi_dmi_table)) {
4876                 result = acpi_bus_register_driver(&sony_pic_driver);
4877                 if (result) {
4878                         pr_err("Unable to register SPIC driver\n");
4879                         goto out;
4880                 }
4881                 spic_drv_registered = 1;
4882         }
4883
4884         result = acpi_bus_register_driver(&sony_nc_driver);
4885         if (result) {
4886                 pr_err("Unable to register SNC driver\n");
4887                 goto out_unregister_pic;
4888         }
4889
4890         return 0;
4891
4892 out_unregister_pic:
4893         if (spic_drv_registered)
4894                 acpi_bus_unregister_driver(&sony_pic_driver);
4895 out:
4896         return result;
4897 }
4898
4899 static void __exit sony_laptop_exit(void)
4900 {
4901         acpi_bus_unregister_driver(&sony_nc_driver);
4902         if (spic_drv_registered)
4903                 acpi_bus_unregister_driver(&sony_pic_driver);
4904 }
4905
4906 module_init(sony_laptop_init);
4907 module_exit(sony_laptop_exit);