linux/drivers/platform/x86/sony-laptop.c
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   1// SPDX-License-Identifier: GPL-2.0-or-later
   2/*
   3 * ACPI Sony Notebook Control Driver (SNC and SPIC)
   4 *
   5 * Copyright (C) 2004-2005 Stelian Pop <stelian@popies.net>
   6 * Copyright (C) 2007-2009 Mattia Dongili <malattia@linux.it>
   7 *
   8 * Parts of this driver inspired from asus_acpi.c and ibm_acpi.c
   9 * which are copyrighted by their respective authors.
  10 *
  11 * The SNY6001 driver part is based on the sonypi driver which includes
  12 * material from:
  13 *
  14 * Copyright (C) 2001-2005 Stelian Pop <stelian@popies.net>
  15 *
  16 * Copyright (C) 2005 Narayanan R S <nars@kadamba.org>
  17 *
  18 * Copyright (C) 2001-2002 AlcĂ´ve <www.alcove.com>
  19 *
  20 * Copyright (C) 2001 Michael Ashley <m.ashley@unsw.edu.au>
  21 *
  22 * Copyright (C) 2001 Junichi Morita <jun1m@mars.dti.ne.jp>
  23 *
  24 * Copyright (C) 2000 Takaya Kinjo <t-kinjo@tc4.so-net.ne.jp>
  25 *
  26 * Copyright (C) 2000 Andrew Tridgell <tridge@valinux.com>
  27 *
  28 * Earlier work by Werner Almesberger, Paul `Rusty' Russell and Paul Mackerras.
  29 */
  30
  31#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  32
  33#include <linux/kernel.h>
  34#include <linux/module.h>
  35#include <linux/moduleparam.h>
  36#include <linux/init.h>
  37#include <linux/types.h>
  38#include <linux/backlight.h>
  39#include <linux/platform_device.h>
  40#include <linux/err.h>
  41#include <linux/dmi.h>
  42#include <linux/pci.h>
  43#include <linux/interrupt.h>
  44#include <linux/delay.h>
  45#include <linux/input.h>
  46#include <linux/kfifo.h>
  47#include <linux/workqueue.h>
  48#include <linux/acpi.h>
  49#include <linux/slab.h>
  50#include <linux/sonypi.h>
  51#include <linux/sony-laptop.h>
  52#include <linux/rfkill.h>
  53#ifdef CONFIG_SONYPI_COMPAT
  54#include <linux/poll.h>
  55#include <linux/miscdevice.h>
  56#endif
  57#include <linux/uaccess.h>
  58#include <acpi/video.h>
  59
  60#define dprintk(fmt, ...)                       \
  61do {                                            \
  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
  74MODULE_AUTHOR("Stelian Pop, Mattia Dongili");
  75MODULE_DESCRIPTION("Sony laptop extras driver (SPIC and SNC ACPI device)");
  76MODULE_LICENSE("GPL");
  77
  78static int debug;
  79module_param(debug, int, 0);
  80MODULE_PARM_DESC(debug, "set this to 1 (and RTFM) if you want to help "
  81                 "the development of this driver");
  82
  83static int no_spic;             /* = 0 */
  84module_param(no_spic, int, 0444);
  85MODULE_PARM_DESC(no_spic,
  86                 "set this if you don't want to enable the SPIC device");
  87
  88static int compat;              /* = 0 */
  89module_param(compat, int, 0444);
  90MODULE_PARM_DESC(compat,
  91                 "set this if you want to enable backward compatibility mode");
  92
  93static unsigned long mask = 0xffffffff;
  94module_param(mask, ulong, 0644);
  95MODULE_PARM_DESC(mask,
  96                 "set this to the mask of event you want to enable (see doc)");
  97
  98static int camera;              /* = 0 */
  99module_param(camera, int, 0444);
 100MODULE_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
 105static int minor = -1;
 106module_param(minor, int, 0);
 107MODULE_PARM_DESC(minor,
 108                 "minor number of the misc device for the SPIC compatibility code, "
 109                 "default is -1 (automatic)");
 110#endif
 111
 112static int kbd_backlight = -1;
 113module_param(kbd_backlight, int, 0444);
 114MODULE_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
 119static int kbd_backlight_timeout = -1;
 120module_param(kbd_backlight_timeout, int, 0444);
 121MODULE_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
 126static void sony_nc_thermal_resume(void);
 127#endif
 128static int sony_nc_kbd_backlight_setup(struct platform_device *pd,
 129                unsigned int handle);
 130static void sony_nc_kbd_backlight_cleanup(struct platform_device *pd,
 131                unsigned int handle);
 132
 133static int sony_nc_battery_care_setup(struct platform_device *pd,
 134                unsigned int handle);
 135static void sony_nc_battery_care_cleanup(struct platform_device *pd);
 136
 137static int sony_nc_thermal_setup(struct platform_device *pd);
 138static void sony_nc_thermal_cleanup(struct platform_device *pd);
 139
 140static int sony_nc_lid_resume_setup(struct platform_device *pd,
 141                                    unsigned int handle);
 142static void sony_nc_lid_resume_cleanup(struct platform_device *pd);
 143
 144static int sony_nc_gfx_switch_setup(struct platform_device *pd,
 145                unsigned int handle);
 146static void sony_nc_gfx_switch_cleanup(struct platform_device *pd);
 147static int __sony_nc_gfx_switch_status_get(void);
 148
 149static int sony_nc_highspeed_charging_setup(struct platform_device *pd);
 150static void sony_nc_highspeed_charging_cleanup(struct platform_device *pd);
 151
 152static int sony_nc_lowbatt_setup(struct platform_device *pd);
 153static void sony_nc_lowbatt_cleanup(struct platform_device *pd);
 154
 155static int sony_nc_fanspeed_setup(struct platform_device *pd);
 156static void sony_nc_fanspeed_cleanup(struct platform_device *pd);
 157
 158static int sony_nc_usb_charge_setup(struct platform_device *pd);
 159static void sony_nc_usb_charge_cleanup(struct platform_device *pd);
 160
 161static int sony_nc_panelid_setup(struct platform_device *pd);
 162static void sony_nc_panelid_cleanup(struct platform_device *pd);
 163
 164static int sony_nc_smart_conn_setup(struct platform_device *pd);
 165static void sony_nc_smart_conn_cleanup(struct platform_device *pd);
 166
 167static int sony_nc_touchpad_setup(struct platform_device *pd,
 168                                  unsigned int handle);
 169static void sony_nc_touchpad_cleanup(struct platform_device *pd);
 170
 171enum sony_nc_rfkill {
 172        SONY_WIFI,
 173        SONY_BLUETOOTH,
 174        SONY_WWAN,
 175        SONY_WIMAX,
 176        N_SONY_RFKILL,
 177};
 178
 179static int sony_rfkill_handle;
 180static struct rfkill *sony_rfkill_devices[N_SONY_RFKILL];
 181static int sony_rfkill_address[N_SONY_RFKILL] = {0x300, 0x500, 0x700, 0x900};
 182static int sony_nc_rfkill_setup(struct acpi_device *device,
 183                unsigned int handle);
 184static void sony_nc_rfkill_cleanup(void);
 185static void sony_nc_rfkill_update(void);
 186
 187/*********** Input Devices ***********/
 188
 189#define SONY_LAPTOP_BUF_SIZE    128
 190struct 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
 199static struct sony_laptop_input_s sony_laptop_input = {
 200        .users = ATOMIC_INIT(0),
 201};
 202
 203struct 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 */
 211static 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
 288static 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 */
 352static 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 */
 374static 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
 439static 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
 514err_free_jogdev:
 515        input_free_device(jog_dev);
 516
 517err_unregister_keydev:
 518        input_unregister_device(key_dev);
 519        /* to avoid kref underflow below at input_free_device */
 520        key_dev = NULL;
 521
 522err_free_keydev:
 523        input_free_device(key_dev);
 524
 525err_free_kfifo:
 526        kfifo_free(&sony_laptop_input.fifo);
 527
 528err_dec_users:
 529        atomic_dec(&sony_laptop_input.users);
 530        return error;
 531}
 532
 533static 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
 567static atomic_t sony_pf_users = ATOMIC_INIT(0);
 568static struct platform_driver sony_pf_driver = {
 569        .driver = {
 570                   .name = "sony-laptop",
 571                   }
 572};
 573static struct platform_device *sony_pf_device;
 574
 575static int sony_pf_add(void)
 576{
 577        int ret = 0;
 578
 579        /* don't run again if already initialized */
 580        if (atomic_add_return(1, &sony_pf_users) > 1)
 581                return 0;
 582
 583        ret = platform_driver_register(&sony_pf_driver);
 584        if (ret)
 585                goto out;
 586
 587        sony_pf_device = platform_device_alloc("sony-laptop", -1);
 588        if (!sony_pf_device) {
 589                ret = -ENOMEM;
 590                goto out_platform_registered;
 591        }
 592
 593        ret = platform_device_add(sony_pf_device);
 594        if (ret)
 595                goto out_platform_alloced;
 596
 597        return 0;
 598
 599      out_platform_alloced:
 600        platform_device_put(sony_pf_device);
 601        sony_pf_device = NULL;
 602      out_platform_registered:
 603        platform_driver_unregister(&sony_pf_driver);
 604      out:
 605        atomic_dec(&sony_pf_users);
 606        return ret;
 607}
 608
 609static 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
 628static ssize_t sony_nc_sysfs_show(struct device *, struct device_attribute *,
 629                              char *);
 630static ssize_t sony_nc_sysfs_store(struct device *, struct device_attribute *,
 631                               const char *, size_t);
 632static int boolean_validate(const int, const int);
 633static int brightness_default_validate(const int, const int);
 634
 635struct 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
 661SNC_HANDLE_NAMES(fnkey_get, "GHKE");
 662
 663SNC_HANDLE_NAMES(brightness_def_get, "GPBR");
 664SNC_HANDLE_NAMES(brightness_def_set, "SPBR");
 665
 666SNC_HANDLE_NAMES(cdpower_get, "GCDP");
 667SNC_HANDLE_NAMES(cdpower_set, "SCDP", "CDPW");
 668
 669SNC_HANDLE_NAMES(audiopower_get, "GAZP");
 670SNC_HANDLE_NAMES(audiopower_set, "AZPW");
 671
 672SNC_HANDLE_NAMES(lanpower_get, "GLNP");
 673SNC_HANDLE_NAMES(lanpower_set, "LNPW");
 674
 675SNC_HANDLE_NAMES(lidstate_get, "GLID");
 676
 677SNC_HANDLE_NAMES(indicatorlamp_get, "GILS");
 678SNC_HANDLE_NAMES(indicatorlamp_set, "SILS");
 679
 680SNC_HANDLE_NAMES(gainbass_get, "GMGB");
 681SNC_HANDLE_NAMES(gainbass_set, "CMGB");
 682
 683SNC_HANDLE_NAMES(PID_get, "GPID");
 684
 685SNC_HANDLE_NAMES(CTR_get, "GCTR");
 686SNC_HANDLE_NAMES(CTR_set, "SCTR");
 687
 688SNC_HANDLE_NAMES(PCR_get, "GPCR");
 689SNC_HANDLE_NAMES(PCR_set, "SPCR");
 690
 691SNC_HANDLE_NAMES(CMI_get, "GCMI");
 692SNC_HANDLE_NAMES(CMI_set, "SCMI");
 693
 694static 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
 717static acpi_handle sony_nc_acpi_handle;
 718static 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 */
 725static 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)
 761static 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
 792static 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
 809struct sony_nc_handles {
 810        u16 cap[0x10];
 811        struct device_attribute devattr;
 812};
 813
 814static struct sony_nc_handles *handles;
 815
 816static ssize_t sony_nc_handles_show(struct device *dev,
 817                struct device_attribute *attr, char *buffer)
 818{
 819        ssize_t len = 0;
 820        int i;
 821
 822        for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
 823                len += scnprintf(buffer + len, PAGE_SIZE - len, "0x%.4x ",
 824                                handles->cap[i]);
 825        }
 826        len += scnprintf(buffer + len, PAGE_SIZE - len, "\n");
 827
 828        return len;
 829}
 830
 831static int sony_nc_handles_setup(struct platform_device *pd)
 832{
 833        int i, r, result, arg;
 834
 835        handles = kzalloc(sizeof(*handles), GFP_KERNEL);
 836        if (!handles)
 837                return -ENOMEM;
 838
 839        for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
 840                arg = i + 0x20;
 841                r = sony_nc_int_call(sony_nc_acpi_handle, "SN00", &arg,
 842                                        &result);
 843                if (!r) {
 844                        dprintk("caching handle 0x%.4x (offset: 0x%.2x)\n",
 845                                        result, i);
 846                        handles->cap[i] = result;
 847                }
 848        }
 849
 850        if (debug) {
 851                sysfs_attr_init(&handles->devattr.attr);
 852                handles->devattr.attr.name = "handles";
 853                handles->devattr.attr.mode = S_IRUGO;
 854                handles->devattr.show = sony_nc_handles_show;
 855
 856                /* allow reading capabilities via sysfs */
 857                if (device_create_file(&pd->dev, &handles->devattr)) {
 858                        kfree(handles);
 859                        handles = NULL;
 860                        return -1;
 861                }
 862        }
 863
 864        return 0;
 865}
 866
 867static int sony_nc_handles_cleanup(struct platform_device *pd)
 868{
 869        if (handles) {
 870                if (debug)
 871                        device_remove_file(&pd->dev, &handles->devattr);
 872                kfree(handles);
 873                handles = NULL;
 874        }
 875        return 0;
 876}
 877
 878static int sony_find_snc_handle(int handle)
 879{
 880        int i;
 881
 882        /* not initialized yet, return early */
 883        if (!handles || !handle)
 884                return -EINVAL;
 885
 886        for (i = 0; i < 0x10; i++) {
 887                if (handles->cap[i] == handle) {
 888                        dprintk("found handle 0x%.4x (offset: 0x%.2x)\n",
 889                                        handle, i);
 890                        return i;
 891                }
 892        }
 893        dprintk("handle 0x%.4x not found\n", handle);
 894        return -EINVAL;
 895}
 896
 897static int sony_call_snc_handle(int handle, int argument, int *result)
 898{
 899        int arg, ret = 0;
 900        int offset = sony_find_snc_handle(handle);
 901
 902        if (offset < 0)
 903                return offset;
 904
 905        arg = offset | argument;
 906        ret = sony_nc_int_call(sony_nc_acpi_handle, "SN07", &arg, result);
 907        dprintk("called SN07 with 0x%.4x (result: 0x%.4x)\n", arg, *result);
 908        return ret;
 909}
 910
 911/*
 912 * sony_nc_values input/output validate functions
 913 */
 914
 915/* brightness_default_validate:
 916 *
 917 * manipulate input output values to keep consistency with the
 918 * backlight framework for which brightness values are 0-based.
 919 */
 920static int brightness_default_validate(const int direction, const int value)
 921{
 922        switch (direction) {
 923                case SNC_VALIDATE_OUT:
 924                        return value - 1;
 925                case SNC_VALIDATE_IN:
 926                        if (value >= 0 && value < SONY_MAX_BRIGHTNESS)
 927                                return value + 1;
 928        }
 929        return -EINVAL;
 930}
 931
 932/* boolean_validate:
 933 *
 934 * on input validate boolean values 0/1, on output just pass the
 935 * received value.
 936 */
 937static int boolean_validate(const int direction, const int value)
 938{
 939        if (direction == SNC_VALIDATE_IN) {
 940                if (value != 0 && value != 1)
 941                        return -EINVAL;
 942        }
 943        return value;
 944}
 945
 946/*
 947 * Sysfs show/store common to all sony_nc_values
 948 */
 949static ssize_t sony_nc_sysfs_show(struct device *dev, struct device_attribute *attr,
 950                              char *buffer)
 951{
 952        int value, ret = 0;
 953        struct sony_nc_value *item =
 954            container_of(attr, struct sony_nc_value, devattr);
 955
 956        if (!*item->acpiget)
 957                return -EIO;
 958
 959        ret = sony_nc_int_call(sony_nc_acpi_handle, *item->acpiget, NULL,
 960                                &value);
 961        if (ret < 0)
 962                return -EIO;
 963
 964        if (item->validate)
 965                value = item->validate(SNC_VALIDATE_OUT, value);
 966
 967        return snprintf(buffer, PAGE_SIZE, "%d\n", value);
 968}
 969
 970static ssize_t sony_nc_sysfs_store(struct device *dev,
 971                               struct device_attribute *attr,
 972                               const char *buffer, size_t count)
 973{
 974        int value;
 975        int ret = 0;
 976        struct sony_nc_value *item =
 977            container_of(attr, struct sony_nc_value, devattr);
 978
 979        if (!item->acpiset)
 980                return -EIO;
 981
 982        if (count > 31)
 983                return -EINVAL;
 984
 985        if (kstrtoint(buffer, 10, &value))
 986                return -EINVAL;
 987
 988        if (item->validate)
 989                value = item->validate(SNC_VALIDATE_IN, value);
 990
 991        if (value < 0)
 992                return value;
 993
 994        ret = sony_nc_int_call(sony_nc_acpi_handle, *item->acpiset,
 995                               &value, NULL);
 996        if (ret < 0)
 997                return -EIO;
 998
 999        item->value = value;
1000        item->valid = 1;
1001        return count;
1002}
1003
1004
1005/*
1006 * Backlight device
1007 */
1008struct sony_backlight_props {
1009        struct backlight_device *dev;
1010        int                     handle;
1011        int                     cmd_base;
1012        u8                      offset;
1013        u8                      maxlvl;
1014};
1015static struct sony_backlight_props sony_bl_props;
1016
1017static int sony_backlight_update_status(struct backlight_device *bd)
1018{
1019        int arg = bd->props.brightness + 1;
1020        return sony_nc_int_call(sony_nc_acpi_handle, "SBRT", &arg, NULL);
1021}
1022
1023static int sony_backlight_get_brightness(struct backlight_device *bd)
1024{
1025        int value;
1026
1027        if (sony_nc_int_call(sony_nc_acpi_handle, "GBRT", NULL, &value))
1028                return 0;
1029        /* brightness levels are 1-based, while backlight ones are 0-based */
1030        return value - 1;
1031}
1032
1033static int sony_nc_get_brightness_ng(struct backlight_device *bd)
1034{
1035        int result;
1036        struct sony_backlight_props *sdev =
1037                (struct sony_backlight_props *)bl_get_data(bd);
1038
1039        sony_call_snc_handle(sdev->handle, sdev->cmd_base + 0x100, &result);
1040
1041        return (result & 0xff) - sdev->offset;
1042}
1043
1044static int sony_nc_update_status_ng(struct backlight_device *bd)
1045{
1046        int value, result;
1047        struct sony_backlight_props *sdev =
1048                (struct sony_backlight_props *)bl_get_data(bd);
1049
1050        value = bd->props.brightness + sdev->offset;
1051        if (sony_call_snc_handle(sdev->handle, sdev->cmd_base | (value << 0x10),
1052                                &result))
1053                return -EIO;
1054
1055        return value;
1056}
1057
1058static const struct backlight_ops sony_backlight_ops = {
1059        .options = BL_CORE_SUSPENDRESUME,
1060        .update_status = sony_backlight_update_status,
1061        .get_brightness = sony_backlight_get_brightness,
1062};
1063static const struct backlight_ops sony_backlight_ng_ops = {
1064        .options = BL_CORE_SUSPENDRESUME,
1065        .update_status = sony_nc_update_status_ng,
1066        .get_brightness = sony_nc_get_brightness_ng,
1067};
1068
1069/*
1070 * New SNC-only Vaios event mapping to driver known keys
1071 */
1072struct sony_nc_event {
1073        u8      data;
1074        u8      event;
1075};
1076
1077static struct sony_nc_event sony_100_events[] = {
1078        { 0x90, SONYPI_EVENT_PKEY_P1 },
1079        { 0x10, SONYPI_EVENT_ANYBUTTON_RELEASED },
1080        { 0x91, SONYPI_EVENT_PKEY_P2 },
1081        { 0x11, SONYPI_EVENT_ANYBUTTON_RELEASED },
1082        { 0x81, SONYPI_EVENT_FNKEY_F1 },
1083        { 0x01, SONYPI_EVENT_FNKEY_RELEASED },
1084        { 0x82, SONYPI_EVENT_FNKEY_F2 },
1085        { 0x02, SONYPI_EVENT_FNKEY_RELEASED },
1086        { 0x83, SONYPI_EVENT_FNKEY_F3 },
1087        { 0x03, SONYPI_EVENT_FNKEY_RELEASED },
1088        { 0x84, SONYPI_EVENT_FNKEY_F4 },
1089        { 0x04, SONYPI_EVENT_FNKEY_RELEASED },
1090        { 0x85, SONYPI_EVENT_FNKEY_F5 },
1091        { 0x05, SONYPI_EVENT_FNKEY_RELEASED },
1092        { 0x86, SONYPI_EVENT_FNKEY_F6 },
1093        { 0x06, SONYPI_EVENT_FNKEY_RELEASED },
1094        { 0x87, SONYPI_EVENT_FNKEY_F7 },
1095        { 0x07, SONYPI_EVENT_FNKEY_RELEASED },
1096        { 0x88, SONYPI_EVENT_FNKEY_F8 },
1097        { 0x08, SONYPI_EVENT_FNKEY_RELEASED },
1098        { 0x89, SONYPI_EVENT_FNKEY_F9 },
1099        { 0x09, SONYPI_EVENT_FNKEY_RELEASED },
1100        { 0x8A, SONYPI_EVENT_FNKEY_F10 },
1101        { 0x0A, SONYPI_EVENT_FNKEY_RELEASED },
1102        { 0x8B, SONYPI_EVENT_FNKEY_F11 },
1103        { 0x0B, SONYPI_EVENT_FNKEY_RELEASED },
1104        { 0x8C, SONYPI_EVENT_FNKEY_F12 },
1105        { 0x0C, SONYPI_EVENT_FNKEY_RELEASED },
1106        { 0x9d, SONYPI_EVENT_ZOOM_PRESSED },
1107        { 0x1d, SONYPI_EVENT_ANYBUTTON_RELEASED },
1108        { 0x9f, SONYPI_EVENT_CD_EJECT_PRESSED },
1109        { 0x1f, SONYPI_EVENT_ANYBUTTON_RELEASED },
1110        { 0xa1, SONYPI_EVENT_MEDIA_PRESSED },
1111        { 0x21, SONYPI_EVENT_ANYBUTTON_RELEASED },
1112        { 0xa4, SONYPI_EVENT_CD_EJECT_PRESSED },
1113        { 0x24, SONYPI_EVENT_ANYBUTTON_RELEASED },
1114        { 0xa5, SONYPI_EVENT_VENDOR_PRESSED },
1115        { 0x25, SONYPI_EVENT_ANYBUTTON_RELEASED },
1116        { 0xa6, SONYPI_EVENT_HELP_PRESSED },
1117        { 0x26, SONYPI_EVENT_ANYBUTTON_RELEASED },
1118        { 0xa8, SONYPI_EVENT_FNKEY_1 },
1119        { 0x28, SONYPI_EVENT_ANYBUTTON_RELEASED },
1120        { 0, 0 },
1121};
1122
1123static struct sony_nc_event sony_127_events[] = {
1124        { 0x81, SONYPI_EVENT_MODEKEY_PRESSED },
1125        { 0x01, SONYPI_EVENT_ANYBUTTON_RELEASED },
1126        { 0x82, SONYPI_EVENT_PKEY_P1 },
1127        { 0x02, SONYPI_EVENT_ANYBUTTON_RELEASED },
1128        { 0x83, SONYPI_EVENT_PKEY_P2 },
1129        { 0x03, SONYPI_EVENT_ANYBUTTON_RELEASED },
1130        { 0x84, SONYPI_EVENT_PKEY_P3 },
1131        { 0x04, SONYPI_EVENT_ANYBUTTON_RELEASED },
1132        { 0x85, SONYPI_EVENT_PKEY_P4 },
1133        { 0x05, SONYPI_EVENT_ANYBUTTON_RELEASED },
1134        { 0x86, SONYPI_EVENT_PKEY_P5 },
1135        { 0x06, SONYPI_EVENT_ANYBUTTON_RELEASED },
1136        { 0x87, SONYPI_EVENT_SETTINGKEY_PRESSED },
1137        { 0x07, SONYPI_EVENT_ANYBUTTON_RELEASED },
1138        { 0, 0 },
1139};
1140
1141static int sony_nc_hotkeys_decode(u32 event, unsigned int handle)
1142{
1143        int ret = -EINVAL;
1144        unsigned int result = 0;
1145        struct sony_nc_event *key_event;
1146
1147        if (sony_call_snc_handle(handle, 0x200, &result)) {
1148                dprintk("Unable to decode event 0x%.2x 0x%.2x\n", handle,
1149                                event);
1150                return -EINVAL;
1151        }
1152
1153        result &= 0xFF;
1154
1155        if (handle == 0x0100)
1156                key_event = sony_100_events;
1157        else
1158                key_event = sony_127_events;
1159
1160        for (; key_event->data; key_event++) {
1161                if (key_event->data == result) {
1162                        ret = key_event->event;
1163                        break;
1164                }
1165        }
1166
1167        if (!key_event->data)
1168                pr_info("Unknown hotkey 0x%.2x/0x%.2x (handle 0x%.2x)\n",
1169                                event, result, handle);
1170
1171        return ret;
1172}
1173
1174/*
1175 * ACPI callbacks
1176 */
1177enum event_types {
1178        HOTKEY = 1,
1179        KILLSWITCH,
1180        GFX_SWITCH
1181};
1182static void sony_nc_notify(struct acpi_device *device, u32 event)
1183{
1184        u32 real_ev = event;
1185        u8 ev_type = 0;
1186        int ret;
1187
1188        dprintk("sony_nc_notify, event: 0x%.2x\n", event);
1189
1190        if (event >= 0x90) {
1191                unsigned int result = 0;
1192                unsigned int arg = 0;
1193                unsigned int handle = 0;
1194                unsigned int offset = event - 0x90;
1195
1196                if (offset >= ARRAY_SIZE(handles->cap)) {
1197                        pr_err("Event 0x%x outside of capabilities list\n",
1198                                        event);
1199                        return;
1200                }
1201                handle = handles->cap[offset];
1202
1203                /* list of handles known for generating events */
1204                switch (handle) {
1205                /* hotkey event */
1206                case 0x0100:
1207                case 0x0127:
1208                        ev_type = HOTKEY;
1209                        ret = sony_nc_hotkeys_decode(event, handle);
1210
1211                        if (ret > 0) {
1212                                sony_laptop_report_input_event(ret);
1213                                real_ev = ret;
1214                        }
1215
1216                        break;
1217
1218                /* wlan switch */
1219                case 0x0124:
1220                case 0x0135:
1221                        /* events on this handle are reported when the
1222                         * switch changes position or for battery
1223                         * events. We'll notify both of them but only
1224                         * update the rfkill device status when the
1225                         * switch is moved.
1226                         */
1227                        ev_type = KILLSWITCH;
1228                        sony_call_snc_handle(handle, 0x0100, &result);
1229                        real_ev = result & 0x03;
1230
1231                        /* hw switch event */
1232                        if (real_ev == 1)
1233                                sony_nc_rfkill_update();
1234
1235                        break;
1236
1237                case 0x0128:
1238                case 0x0146:
1239                        /* Hybrid GFX switching */
1240                        sony_call_snc_handle(handle, 0x0000, &result);
1241                        dprintk("GFX switch event received (reason: %s)\n",
1242                                        (result == 0x1) ? "switch change" :
1243                                        (result == 0x2) ? "output switch" :
1244                                        (result == 0x3) ? "output switch" :
1245                                        "");
1246
1247                        ev_type = GFX_SWITCH;
1248                        real_ev = __sony_nc_gfx_switch_status_get();
1249                        break;
1250
1251                case 0x015B:
1252                        /* Hybrid GFX switching SVS151290S */
1253                        ev_type = GFX_SWITCH;
1254                        real_ev = __sony_nc_gfx_switch_status_get();
1255                        break;
1256                default:
1257                        dprintk("Unknown event 0x%x for handle 0x%x\n",
1258                                        event, handle);
1259                        break;
1260                }
1261
1262                /* clear the event (and the event reason when present) */
1263                arg = 1 << offset;
1264                sony_nc_int_call(sony_nc_acpi_handle, "SN05", &arg, &result);
1265
1266        } else {
1267                /* old style event */
1268                ev_type = HOTKEY;
1269                sony_laptop_report_input_event(real_ev);
1270        }
1271        acpi_bus_generate_netlink_event(sony_nc_acpi_device->pnp.device_class,
1272                        dev_name(&sony_nc_acpi_device->dev), ev_type, real_ev);
1273}
1274
1275static acpi_status sony_walk_callback(acpi_handle handle, u32 level,
1276                                      void *context, void **return_value)
1277{
1278        struct acpi_device_info *info;
1279
1280        if (ACPI_SUCCESS(acpi_get_object_info(handle, &info))) {
1281                pr_warn("method: name: %4.4s, args %X\n",
1282                        (char *)&info->name, info->param_count);
1283
1284                kfree(info);
1285        }
1286
1287        return AE_OK;
1288}
1289
1290/*
1291 * ACPI device
1292 */
1293static void sony_nc_function_setup(struct acpi_device *device,
1294                struct platform_device *pf_device)
1295{
1296        unsigned int i, result, bitmask, arg;
1297
1298        if (!handles)
1299                return;
1300
1301        /* setup found handles here */
1302        for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
1303                unsigned int handle = handles->cap[i];
1304
1305                if (!handle)
1306                        continue;
1307
1308                dprintk("setting up handle 0x%.4x\n", handle);
1309
1310                switch (handle) {
1311                case 0x0100:
1312                case 0x0101:
1313                case 0x0127:
1314                        /* setup hotkeys */
1315                        sony_call_snc_handle(handle, 0, &result);
1316                        break;
1317                case 0x0102:
1318                        /* setup hotkeys */
1319                        sony_call_snc_handle(handle, 0x100, &result);
1320                        break;
1321                case 0x0105:
1322                case 0x0148:
1323                        /* touchpad enable/disable */
1324                        result = sony_nc_touchpad_setup(pf_device, handle);
1325                        if (result)
1326                                pr_err("couldn't set up touchpad control function (%d)\n",
1327                                                result);
1328                        break;
1329                case 0x0115:
1330                case 0x0136:
1331                case 0x013f:
1332                        result = sony_nc_battery_care_setup(pf_device, handle);
1333                        if (result)
1334                                pr_err("couldn't set up battery care function (%d)\n",
1335                                                result);
1336                        break;
1337                case 0x0119:
1338                case 0x015D:
1339                        result = sony_nc_lid_resume_setup(pf_device, handle);
1340                        if (result)
1341                                pr_err("couldn't set up lid resume function (%d)\n",
1342                                                result);
1343                        break;
1344                case 0x0122:
1345                        result = sony_nc_thermal_setup(pf_device);
1346                        if (result)
1347                                pr_err("couldn't set up thermal profile function (%d)\n",
1348                                                result);
1349                        break;
1350                case 0x0128:
1351                case 0x0146:
1352                case 0x015B:
1353                        result = sony_nc_gfx_switch_setup(pf_device, handle);
1354                        if (result)
1355                                pr_err("couldn't set up GFX Switch status (%d)\n",
1356                                                result);
1357                        break;
1358                case 0x0131:
1359                        result = sony_nc_highspeed_charging_setup(pf_device);
1360                        if (result)
1361                                pr_err("couldn't set up high speed charging function (%d)\n",
1362                                       result);
1363                        break;
1364                case 0x0124:
1365                case 0x0135:
1366                        result = sony_nc_rfkill_setup(device, handle);
1367                        if (result)
1368                                pr_err("couldn't set up rfkill support (%d)\n",
1369                                                result);
1370                        break;
1371                case 0x0137:
1372                case 0x0143:
1373                case 0x014b:
1374                case 0x014c:
1375                case 0x0153:
1376                case 0x0163:
1377                        result = sony_nc_kbd_backlight_setup(pf_device, handle);
1378                        if (result)
1379                                pr_err("couldn't set up keyboard backlight function (%d)\n",
1380                                                result);
1381                        break;
1382                case 0x0121:
1383                        result = sony_nc_lowbatt_setup(pf_device);
1384                        if (result)
1385                                pr_err("couldn't set up low battery function (%d)\n",
1386                                       result);
1387                        break;
1388                case 0x0149:
1389                        result = sony_nc_fanspeed_setup(pf_device);
1390                        if (result)
1391                                pr_err("couldn't set up fan speed function (%d)\n",
1392                                       result);
1393                        break;
1394                case 0x0155:
1395                        result = sony_nc_usb_charge_setup(pf_device);
1396                        if (result)
1397                                pr_err("couldn't set up USB charge support (%d)\n",
1398                                                result);
1399                        break;
1400                case 0x011D:
1401                        result = sony_nc_panelid_setup(pf_device);
1402                        if (result)
1403                                pr_err("couldn't set up panel ID function (%d)\n",
1404                                       result);
1405                        break;
1406                case 0x0168:
1407                        result = sony_nc_smart_conn_setup(pf_device);
1408                        if (result)
1409                                pr_err("couldn't set up smart connect support (%d)\n",
1410                                                result);
1411                        break;
1412                default:
1413                        continue;
1414                }
1415        }
1416
1417        /* Enable all events */
1418        arg = 0x10;
1419        if (!sony_nc_int_call(sony_nc_acpi_handle, "SN00", &arg, &bitmask))
1420                sony_nc_int_call(sony_nc_acpi_handle, "SN02", &bitmask,
1421                                &result);
1422}
1423
1424static void sony_nc_function_cleanup(struct platform_device *pd)
1425{
1426        unsigned int i, result, bitmask, handle;
1427
1428        if (!handles)
1429                return;
1430
1431        /* get enabled events and disable them */
1432        sony_nc_int_call(sony_nc_acpi_handle, "SN01", NULL, &bitmask);
1433        sony_nc_int_call(sony_nc_acpi_handle, "SN03", &bitmask, &result);
1434
1435        /* cleanup handles here */
1436        for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
1437
1438                handle = handles->cap[i];
1439
1440                if (!handle)
1441                        continue;
1442
1443                switch (handle) {
1444                case 0x0105:
1445                case 0x0148:
1446                        sony_nc_touchpad_cleanup(pd);
1447                        break;
1448                case 0x0115:
1449                case 0x0136:
1450                case 0x013f:
1451                        sony_nc_battery_care_cleanup(pd);
1452                        break;
1453                case 0x0119:
1454                case 0x015D:
1455                        sony_nc_lid_resume_cleanup(pd);
1456                        break;
1457                case 0x0122:
1458                        sony_nc_thermal_cleanup(pd);
1459                        break;
1460                case 0x0128:
1461                case 0x0146:
1462                case 0x015B:
1463                        sony_nc_gfx_switch_cleanup(pd);
1464                        break;
1465                case 0x0131:
1466                        sony_nc_highspeed_charging_cleanup(pd);
1467                        break;
1468                case 0x0124:
1469                case 0x0135:
1470                        sony_nc_rfkill_cleanup();
1471                        break;
1472                case 0x0137:
1473                case 0x0143:
1474                case 0x014b:
1475                case 0x014c:
1476                case 0x0153:
1477                case 0x0163:
1478                        sony_nc_kbd_backlight_cleanup(pd, handle);
1479                        break;
1480                case 0x0121:
1481                        sony_nc_lowbatt_cleanup(pd);
1482                        break;
1483                case 0x0149:
1484                        sony_nc_fanspeed_cleanup(pd);
1485                        break;
1486                case 0x0155:
1487                        sony_nc_usb_charge_cleanup(pd);
1488                        break;
1489                case 0x011D:
1490                        sony_nc_panelid_cleanup(pd);
1491                        break;
1492                case 0x0168:
1493                        sony_nc_smart_conn_cleanup(pd);
1494                        break;
1495                default:
1496                        continue;
1497                }
1498        }
1499
1500        /* finally cleanup the handles list */
1501        sony_nc_handles_cleanup(pd);
1502}
1503
1504#ifdef CONFIG_PM_SLEEP
1505static void sony_nc_function_resume(void)
1506{
1507        unsigned int i, result, bitmask, arg;
1508
1509        dprintk("Resuming SNC device\n");
1510
1511        for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
1512                unsigned int handle = handles->cap[i];
1513
1514                if (!handle)
1515                        continue;
1516
1517                switch (handle) {
1518                case 0x0100:
1519                case 0x0101:
1520                case 0x0127:
1521                        /* re-enable hotkeys */
1522                        sony_call_snc_handle(handle, 0, &result);
1523                        break;
1524                case 0x0102:
1525                        /* re-enable hotkeys */
1526                        sony_call_snc_handle(handle, 0x100, &result);
1527                        break;
1528                case 0x0122:
1529                        sony_nc_thermal_resume();
1530                        break;
1531                case 0x0124:
1532                case 0x0135:
1533                        sony_nc_rfkill_update();
1534                        break;
1535                default:
1536                        continue;
1537                }
1538        }
1539
1540        /* Enable all events */
1541        arg = 0x10;
1542        if (!sony_nc_int_call(sony_nc_acpi_handle, "SN00", &arg, &bitmask))
1543                sony_nc_int_call(sony_nc_acpi_handle, "SN02", &bitmask,
1544                                &result);
1545}
1546
1547static int sony_nc_resume(struct device *dev)
1548{
1549        struct sony_nc_value *item;
1550
1551        for (item = sony_nc_values; item->name; item++) {
1552                int ret;
1553
1554                if (!item->valid)
1555                        continue;
1556                ret = sony_nc_int_call(sony_nc_acpi_handle, *item->acpiset,
1557                                       &item->value, NULL);
1558                if (ret < 0) {
1559                        pr_err("%s: %d\n", __func__, ret);
1560                        break;
1561                }
1562        }
1563
1564        if (acpi_has_method(sony_nc_acpi_handle, "ECON")) {
1565                int arg = 1;
1566                if (sony_nc_int_call(sony_nc_acpi_handle, "ECON", &arg, NULL))
1567                        dprintk("ECON Method failed\n");
1568        }
1569
1570        if (acpi_has_method(sony_nc_acpi_handle, "SN00"))
1571                sony_nc_function_resume();
1572
1573        return 0;
1574}
1575#endif
1576
1577static SIMPLE_DEV_PM_OPS(sony_nc_pm, NULL, sony_nc_resume);
1578
1579static void sony_nc_rfkill_cleanup(void)
1580{
1581        int i;
1582
1583        for (i = 0; i < N_SONY_RFKILL; i++) {
1584                if (sony_rfkill_devices[i]) {
1585                        rfkill_unregister(sony_rfkill_devices[i]);
1586                        rfkill_destroy(sony_rfkill_devices[i]);
1587                }
1588        }
1589}
1590
1591static int sony_nc_rfkill_set(void *data, bool blocked)
1592{
1593        int result;
1594        int argument = sony_rfkill_address[(long) data] + 0x100;
1595
1596        if (!blocked)
1597                argument |= 0x070000;
1598
1599        return sony_call_snc_handle(sony_rfkill_handle, argument, &result);
1600}
1601
1602static const struct rfkill_ops sony_rfkill_ops = {
1603        .set_block = sony_nc_rfkill_set,
1604};
1605
1606static int sony_nc_setup_rfkill(struct acpi_device *device,
1607                                enum sony_nc_rfkill nc_type)
1608{
1609        int err;
1610        struct rfkill *rfk;
1611        enum rfkill_type type;
1612        const char *name;
1613        int result;
1614        bool hwblock, swblock;
1615
1616        switch (nc_type) {
1617        case SONY_WIFI:
1618                type = RFKILL_TYPE_WLAN;
1619                name = "sony-wifi";
1620                break;
1621        case SONY_BLUETOOTH:
1622                type = RFKILL_TYPE_BLUETOOTH;
1623                name = "sony-bluetooth";
1624                break;
1625        case SONY_WWAN:
1626                type = RFKILL_TYPE_WWAN;
1627                name = "sony-wwan";
1628                break;
1629        case SONY_WIMAX:
1630                type = RFKILL_TYPE_WIMAX;
1631                name = "sony-wimax";
1632                break;
1633        default:
1634                return -EINVAL;
1635        }
1636
1637        rfk = rfkill_alloc(name, &device->dev, type,
1638                           &sony_rfkill_ops, (void *)nc_type);
1639        if (!rfk)
1640                return -ENOMEM;
1641
1642        err = sony_call_snc_handle(sony_rfkill_handle, 0x200, &result);
1643        if (err < 0) {
1644                rfkill_destroy(rfk);
1645                return err;
1646        }
1647        hwblock = !(result & 0x1);
1648
1649        err = sony_call_snc_handle(sony_rfkill_handle,
1650                                   sony_rfkill_address[nc_type],
1651                                   &result);
1652        if (err < 0) {
1653                rfkill_destroy(rfk);
1654                return err;
1655        }
1656        swblock = !(result & 0x2);
1657
1658        rfkill_init_sw_state(rfk, swblock);
1659        rfkill_set_hw_state(rfk, hwblock);
1660
1661        err = rfkill_register(rfk);
1662        if (err) {
1663                rfkill_destroy(rfk);
1664                return err;
1665        }
1666        sony_rfkill_devices[nc_type] = rfk;
1667        return err;
1668}
1669
1670static void sony_nc_rfkill_update(void)
1671{
1672        enum sony_nc_rfkill i;
1673        int result;
1674        bool hwblock;
1675
1676        sony_call_snc_handle(sony_rfkill_handle, 0x200, &result);
1677        hwblock = !(result & 0x1);
1678
1679        for (i = 0; i < N_SONY_RFKILL; i++) {
1680                int argument = sony_rfkill_address[i];
1681
1682                if (!sony_rfkill_devices[i])
1683                        continue;
1684
1685                if (hwblock) {
1686                        if (rfkill_set_hw_state(sony_rfkill_devices[i], true)) {
1687                                /* we already know we're blocked */
1688                        }
1689                        continue;
1690                }
1691
1692                sony_call_snc_handle(sony_rfkill_handle, argument, &result);
1693                rfkill_set_states(sony_rfkill_devices[i],
1694                                  !(result & 0x2), false);
1695        }
1696}
1697
1698static int sony_nc_rfkill_setup(struct acpi_device *device,
1699                unsigned int handle)
1700{
1701        u64 offset;
1702        int i;
1703        unsigned char buffer[32] = { 0 };
1704
1705        offset = sony_find_snc_handle(handle);
1706        sony_rfkill_handle = handle;
1707
1708        i = sony_nc_buffer_call(sony_nc_acpi_handle, "SN06", &offset, buffer,
1709                        32);
1710        if (i < 0)
1711                return i;
1712
1713        /* The buffer is filled with magic numbers describing the devices
1714         * available, 0xff terminates the enumeration.
1715         * Known codes:
1716         *      0x00 WLAN
1717         *      0x10 BLUETOOTH
1718         *      0x20 WWAN GPRS-EDGE
1719         *      0x21 WWAN HSDPA
1720         *      0x22 WWAN EV-DO
1721         *      0x23 WWAN GPS
1722         *      0x25 Gobi WWAN no GPS
1723         *      0x26 Gobi WWAN + GPS
1724         *      0x28 Gobi WWAN no GPS
1725         *      0x29 Gobi WWAN + GPS
1726         *      0x30 WIMAX
1727         *      0x50 Gobi WWAN no GPS
1728         *      0x51 Gobi WWAN + GPS
1729         *      0x70 no SIM card slot
1730         *      0x71 SIM card slot
1731         */
1732        for (i = 0; i < ARRAY_SIZE(buffer); i++) {
1733
1734                if (buffer[i] == 0xff)
1735                        break;
1736
1737                dprintk("Radio devices, found 0x%.2x\n", buffer[i]);
1738
1739                if (buffer[i] == 0 && !sony_rfkill_devices[SONY_WIFI])
1740                        sony_nc_setup_rfkill(device, SONY_WIFI);
1741
1742                if (buffer[i] == 0x10 && !sony_rfkill_devices[SONY_BLUETOOTH])
1743                        sony_nc_setup_rfkill(device, SONY_BLUETOOTH);
1744
1745                if (((0xf0 & buffer[i]) == 0x20 ||
1746                                        (0xf0 & buffer[i]) == 0x50) &&
1747                                !sony_rfkill_devices[SONY_WWAN])
1748                        sony_nc_setup_rfkill(device, SONY_WWAN);
1749
1750                if (buffer[i] == 0x30 && !sony_rfkill_devices[SONY_WIMAX])
1751                        sony_nc_setup_rfkill(device, SONY_WIMAX);
1752        }
1753        return 0;
1754}
1755
1756/* Keyboard backlight feature */
1757struct kbd_backlight {
1758        unsigned int handle;
1759        unsigned int base;
1760        unsigned int mode;
1761        unsigned int timeout;
1762        unsigned int has_timeout;
1763        struct device_attribute mode_attr;
1764        struct device_attribute timeout_attr;
1765};
1766
1767static struct kbd_backlight *kbdbl_ctl;
1768
1769static ssize_t __sony_nc_kbd_backlight_mode_set(u8 value)
1770{
1771        int result;
1772
1773        if (value > 2)
1774                return -EINVAL;
1775
1776        if (sony_call_snc_handle(kbdbl_ctl->handle,
1777                                (value << 0x10) | (kbdbl_ctl->base), &result))
1778                return -EIO;
1779
1780        /* Try to turn the light on/off immediately */
1781        if (value != 1)
1782                sony_call_snc_handle(kbdbl_ctl->handle,
1783                                (value << 0x0f) | (kbdbl_ctl->base + 0x100),
1784                                &result);
1785
1786        kbdbl_ctl->mode = value;
1787
1788        return 0;
1789}
1790
1791static ssize_t sony_nc_kbd_backlight_mode_store(struct device *dev,
1792                struct device_attribute *attr,
1793                const char *buffer, size_t count)
1794{
1795        int ret = 0;
1796        unsigned long value;
1797
1798        if (count > 31)
1799                return -EINVAL;
1800
1801        if (kstrtoul(buffer, 10, &value))
1802                return -EINVAL;
1803
1804        ret = __sony_nc_kbd_backlight_mode_set(value);
1805        if (ret < 0)
1806                return ret;
1807
1808        return count;
1809}
1810
1811static ssize_t sony_nc_kbd_backlight_mode_show(struct device *dev,
1812                struct device_attribute *attr, char *buffer)
1813{
1814        ssize_t count = 0;
1815        count = snprintf(buffer, PAGE_SIZE, "%d\n", kbdbl_ctl->mode);
1816        return count;
1817}
1818
1819static int __sony_nc_kbd_backlight_timeout_set(u8 value)
1820{
1821        int result;
1822
1823        if (value > 3)
1824                return -EINVAL;
1825
1826        if (sony_call_snc_handle(kbdbl_ctl->handle, (value << 0x10) |
1827                                (kbdbl_ctl->base + 0x200), &result))
1828                return -EIO;
1829
1830        kbdbl_ctl->timeout = value;
1831
1832        return 0;
1833}
1834
1835static ssize_t sony_nc_kbd_backlight_timeout_store(struct device *dev,
1836                struct device_attribute *attr,
1837                const char *buffer, size_t count)
1838{
1839        int ret = 0;
1840        unsigned long value;
1841
1842        if (count > 31)
1843                return -EINVAL;
1844
1845        if (kstrtoul(buffer, 10, &value))
1846                return -EINVAL;
1847
1848        ret = __sony_nc_kbd_backlight_timeout_set(value);
1849        if (ret < 0)
1850                return ret;
1851
1852        return count;
1853}
1854
1855static ssize_t sony_nc_kbd_backlight_timeout_show(struct device *dev,
1856                struct device_attribute *attr, char *buffer)
1857{
1858        ssize_t count = 0;
1859        count = snprintf(buffer, PAGE_SIZE, "%d\n", kbdbl_ctl->timeout);
1860        return count;
1861}
1862
1863static int sony_nc_kbd_backlight_setup(struct platform_device *pd,
1864                unsigned int handle)
1865{
1866        int result;
1867        int probe_base = 0;
1868        int ctl_base = 0;
1869        int ret = 0;
1870
1871        if (kbdbl_ctl) {
1872                pr_warn("handle 0x%.4x: keyboard backlight setup already done for 0x%.4x\n",
1873                                handle, kbdbl_ctl->handle);
1874                return -EBUSY;
1875        }
1876
1877        /* verify the kbd backlight presence, some of these handles are not used
1878         * for keyboard backlight only
1879         */
1880        switch (handle) {
1881        case 0x0153:
1882                probe_base = 0x0;
1883                ctl_base = 0x0;
1884                break;
1885        case 0x0137:
1886                probe_base = 0x0B00;
1887                ctl_base = 0x0C00;
1888                break;
1889        default:
1890                probe_base = 0x0100;
1891                ctl_base = 0x4000;
1892                break;
1893        }
1894
1895        ret = sony_call_snc_handle(handle, probe_base, &result);
1896        if (ret)
1897                return ret;
1898
1899        if ((handle == 0x0137 && !(result & 0x02)) ||
1900                        !(result & 0x01)) {
1901                dprintk("no backlight keyboard found\n");
1902                return 0;
1903        }
1904
1905        kbdbl_ctl = kzalloc(sizeof(*kbdbl_ctl), GFP_KERNEL);
1906        if (!kbdbl_ctl)
1907                return -ENOMEM;
1908
1909        kbdbl_ctl->mode = kbd_backlight;
1910        kbdbl_ctl->timeout = kbd_backlight_timeout;
1911        kbdbl_ctl->handle = handle;
1912        kbdbl_ctl->base = ctl_base;
1913        /* Some models do not allow timeout control */
1914        kbdbl_ctl->has_timeout = handle != 0x0153;
1915
1916        sysfs_attr_init(&kbdbl_ctl->mode_attr.attr);
1917        kbdbl_ctl->mode_attr.attr.name = "kbd_backlight";
1918        kbdbl_ctl->mode_attr.attr.mode = S_IRUGO | S_IWUSR;
1919        kbdbl_ctl->mode_attr.show = sony_nc_kbd_backlight_mode_show;
1920        kbdbl_ctl->mode_attr.store = sony_nc_kbd_backlight_mode_store;
1921
1922        ret = device_create_file(&pd->dev, &kbdbl_ctl->mode_attr);
1923        if (ret)
1924                goto outkzalloc;
1925
1926        __sony_nc_kbd_backlight_mode_set(kbdbl_ctl->mode);
1927
1928        if (kbdbl_ctl->has_timeout) {
1929                sysfs_attr_init(&kbdbl_ctl->timeout_attr.attr);
1930                kbdbl_ctl->timeout_attr.attr.name = "kbd_backlight_timeout";
1931                kbdbl_ctl->timeout_attr.attr.mode = S_IRUGO | S_IWUSR;
1932                kbdbl_ctl->timeout_attr.show =
1933                        sony_nc_kbd_backlight_timeout_show;
1934                kbdbl_ctl->timeout_attr.store =
1935                        sony_nc_kbd_backlight_timeout_store;
1936
1937                ret = device_create_file(&pd->dev, &kbdbl_ctl->timeout_attr);
1938                if (ret)
1939                        goto outmode;
1940
1941                __sony_nc_kbd_backlight_timeout_set(kbdbl_ctl->timeout);
1942        }
1943
1944
1945        return 0;
1946
1947outmode:
1948        device_remove_file(&pd->dev, &kbdbl_ctl->mode_attr);
1949outkzalloc:
1950        kfree(kbdbl_ctl);
1951        kbdbl_ctl = NULL;
1952        return ret;
1953}
1954
1955static void sony_nc_kbd_backlight_cleanup(struct platform_device *pd,
1956                unsigned int handle)
1957{
1958        if (kbdbl_ctl && handle == kbdbl_ctl->handle) {
1959                device_remove_file(&pd->dev, &kbdbl_ctl->mode_attr);
1960                if (kbdbl_ctl->has_timeout)
1961                        device_remove_file(&pd->dev, &kbdbl_ctl->timeout_attr);
1962                kfree(kbdbl_ctl);
1963                kbdbl_ctl = NULL;
1964        }
1965}
1966
1967struct battery_care_control {
1968        struct device_attribute attrs[2];
1969        unsigned int handle;
1970};
1971static struct battery_care_control *bcare_ctl;
1972
1973static ssize_t sony_nc_battery_care_limit_store(struct device *dev,
1974                struct device_attribute *attr,
1975                const char *buffer, size_t count)
1976{
1977        unsigned int result, cmd;
1978        unsigned long value;
1979
1980        if (count > 31)
1981                return -EINVAL;
1982
1983        if (kstrtoul(buffer, 10, &value))
1984                return -EINVAL;
1985
1986        /*  limit values (2 bits):
1987         *  00 - none
1988         *  01 - 80%
1989         *  10 - 50%
1990         *  11 - 100%
1991         *
1992         *  bit 0: 0 disable BCL, 1 enable BCL
1993         *  bit 1: 1 tell to store the battery limit (see bits 6,7) too
1994         *  bits 2,3: reserved
1995         *  bits 4,5: store the limit into the EC
1996         *  bits 6,7: store the limit into the battery
1997         */
1998        cmd = 0;
1999
2000        if (value > 0) {
2001                if (value <= 50)
2002                        cmd = 0x20;
2003
2004                else if (value <= 80)
2005                        cmd = 0x10;
2006
2007                else if (value <= 100)
2008                        cmd = 0x30;
2009
2010                else
2011                        return -EINVAL;
2012
2013                /*
2014                 * handle 0x0115 should allow storing on battery too;
2015                 * handle 0x0136 same as 0x0115 + health status;
2016                 * handle 0x013f, same as 0x0136 but no storing on the battery
2017                 */
2018                if (bcare_ctl->handle != 0x013f)
2019                        cmd = cmd | (cmd << 2);
2020
2021                cmd = (cmd | 0x1) << 0x10;
2022        }
2023
2024        if (sony_call_snc_handle(bcare_ctl->handle, cmd | 0x0100, &result))
2025                return -EIO;
2026
2027        return count;
2028}
2029
2030static ssize_t sony_nc_battery_care_limit_show(struct device *dev,
2031                struct device_attribute *attr, char *buffer)
2032{
2033        unsigned int result, status;
2034
2035        if (sony_call_snc_handle(bcare_ctl->handle, 0x0000, &result))
2036                return -EIO;
2037
2038        status = (result & 0x01) ? ((result & 0x30) >> 0x04) : 0;
2039        switch (status) {
2040        case 1:
2041                status = 80;
2042                break;
2043        case 2:
2044                status = 50;
2045                break;
2046        case 3:
2047                status = 100;
2048                break;
2049        default:
2050                status = 0;
2051                break;
2052        }
2053
2054        return snprintf(buffer, PAGE_SIZE, "%d\n", status);
2055}
2056
2057static ssize_t sony_nc_battery_care_health_show(struct device *dev,
2058                struct device_attribute *attr, char *buffer)
2059{
2060        ssize_t count = 0;
2061        unsigned int health;
2062
2063        if (sony_call_snc_handle(bcare_ctl->handle, 0x0200, &health))
2064                return -EIO;
2065
2066        count = snprintf(buffer, PAGE_SIZE, "%d\n", health & 0xff);
2067
2068        return count;
2069}
2070
2071static int sony_nc_battery_care_setup(struct platform_device *pd,
2072                unsigned int handle)
2073{
2074        int ret = 0;
2075
2076        bcare_ctl = kzalloc(sizeof(struct battery_care_control), GFP_KERNEL);
2077        if (!bcare_ctl)
2078                return -ENOMEM;
2079
2080        bcare_ctl->handle = handle;
2081
2082        sysfs_attr_init(&bcare_ctl->attrs[0].attr);
2083        bcare_ctl->attrs[0].attr.name = "battery_care_limiter";
2084        bcare_ctl->attrs[0].attr.mode = S_IRUGO | S_IWUSR;
2085        bcare_ctl->attrs[0].show = sony_nc_battery_care_limit_show;
2086        bcare_ctl->attrs[0].store = sony_nc_battery_care_limit_store;
2087
2088        ret = device_create_file(&pd->dev, &bcare_ctl->attrs[0]);
2089        if (ret)
2090                goto outkzalloc;
2091
2092        /* 0x0115 is for models with no health reporting capability */
2093        if (handle == 0x0115)
2094                return 0;
2095
2096        sysfs_attr_init(&bcare_ctl->attrs[1].attr);
2097        bcare_ctl->attrs[1].attr.name = "battery_care_health";
2098        bcare_ctl->attrs[1].attr.mode = S_IRUGO;
2099        bcare_ctl->attrs[1].show = sony_nc_battery_care_health_show;
2100
2101        ret = device_create_file(&pd->dev, &bcare_ctl->attrs[1]);
2102        if (ret)
2103                goto outlimiter;
2104
2105        return 0;
2106
2107outlimiter:
2108        device_remove_file(&pd->dev, &bcare_ctl->attrs[0]);
2109
2110outkzalloc:
2111        kfree(bcare_ctl);
2112        bcare_ctl = NULL;
2113
2114        return ret;
2115}
2116
2117static void sony_nc_battery_care_cleanup(struct platform_device *pd)
2118{
2119        if (bcare_ctl) {
2120                device_remove_file(&pd->dev, &bcare_ctl->attrs[0]);
2121                if (bcare_ctl->handle != 0x0115)
2122                        device_remove_file(&pd->dev, &bcare_ctl->attrs[1]);
2123
2124                kfree(bcare_ctl);
2125                bcare_ctl = NULL;
2126        }
2127}
2128
2129struct snc_thermal_ctrl {
2130        unsigned int mode;
2131        unsigned int profiles;
2132        struct device_attribute mode_attr;
2133        struct device_attribute profiles_attr;
2134};
2135static struct snc_thermal_ctrl *th_handle;
2136
2137#define THM_PROFILE_MAX 3
2138static const char * const snc_thermal_profiles[] = {
2139        "balanced",
2140        "silent",
2141        "performance"
2142};
2143
2144static int sony_nc_thermal_mode_set(unsigned short mode)
2145{
2146        unsigned int result;
2147
2148        /* the thermal profile seems to be a two bit bitmask:
2149         * lsb -> silent
2150         * msb -> performance
2151         * no bit set is the normal operation and is always valid
2152         * Some vaio models only have "balanced" and "performance"
2153         */
2154        if ((mode && !(th_handle->profiles & mode)) || mode >= THM_PROFILE_MAX)
2155                return -EINVAL;
2156
2157        if (sony_call_snc_handle(0x0122, mode << 0x10 | 0x0200, &result))
2158                return -EIO;
2159
2160        th_handle->mode = mode;
2161
2162        return 0;
2163}
2164
2165static int sony_nc_thermal_mode_get(void)
2166{
2167        unsigned int result;
2168
2169        if (sony_call_snc_handle(0x0122, 0x0100, &result))
2170                return -EIO;
2171
2172        return result & 0xff;
2173}
2174
2175static ssize_t sony_nc_thermal_profiles_show(struct device *dev,
2176                struct device_attribute *attr, char *buffer)
2177{
2178        short cnt;
2179        size_t idx = 0;
2180
2181        for (cnt = 0; cnt < THM_PROFILE_MAX; cnt++) {
2182                if (!cnt || (th_handle->profiles & cnt))
2183                        idx += scnprintf(buffer + idx, PAGE_SIZE - idx, "%s ",
2184                                        snc_thermal_profiles[cnt]);
2185        }
2186        idx += scnprintf(buffer + idx, PAGE_SIZE - idx, "\n");
2187
2188        return idx;
2189}
2190
2191static ssize_t sony_nc_thermal_mode_store(struct device *dev,
2192                struct device_attribute *attr,
2193                const char *buffer, size_t count)
2194{
2195        unsigned short cmd;
2196        size_t len = count;
2197
2198        if (count == 0)
2199                return -EINVAL;
2200
2201        /* skip the newline if present */
2202        if (buffer[len - 1] == '\n')
2203                len--;
2204
2205        for (cmd = 0; cmd < THM_PROFILE_MAX; cmd++)
2206                if (strncmp(buffer, snc_thermal_profiles[cmd], len) == 0)
2207                        break;
2208
2209        if (sony_nc_thermal_mode_set(cmd))
2210                return -EIO;
2211
2212        return count;
2213}
2214
2215static ssize_t sony_nc_thermal_mode_show(struct device *dev,
2216                struct device_attribute *attr, char *buffer)
2217{
2218        ssize_t count = 0;
2219        int mode = sony_nc_thermal_mode_get();
2220
2221        if (mode < 0)
2222                return mode;
2223
2224        count = snprintf(buffer, PAGE_SIZE, "%s\n", snc_thermal_profiles[mode]);
2225
2226        return count;
2227}
2228
2229static int sony_nc_thermal_setup(struct platform_device *pd)
2230{
2231        int ret = 0;
2232        th_handle = kzalloc(sizeof(struct snc_thermal_ctrl), GFP_KERNEL);
2233        if (!th_handle)
2234                return -ENOMEM;
2235
2236        ret = sony_call_snc_handle(0x0122, 0x0000, &th_handle->profiles);
2237        if (ret) {
2238                pr_warn("couldn't to read the thermal profiles\n");
2239                goto outkzalloc;
2240        }
2241
2242        ret = sony_nc_thermal_mode_get();
2243        if (ret < 0) {
2244                pr_warn("couldn't to read the current thermal profile");
2245                goto outkzalloc;
2246        }
2247        th_handle->mode = ret;
2248
2249        sysfs_attr_init(&th_handle->profiles_attr.attr);
2250        th_handle->profiles_attr.attr.name = "thermal_profiles";
2251        th_handle->profiles_attr.attr.mode = S_IRUGO;
2252        th_handle->profiles_attr.show = sony_nc_thermal_profiles_show;
2253
2254        sysfs_attr_init(&th_handle->mode_attr.attr);
2255        th_handle->mode_attr.attr.name = "thermal_control";
2256        th_handle->mode_attr.attr.mode = S_IRUGO | S_IWUSR;
2257        th_handle->mode_attr.show = sony_nc_thermal_mode_show;
2258        th_handle->mode_attr.store = sony_nc_thermal_mode_store;
2259
2260        ret = device_create_file(&pd->dev, &th_handle->profiles_attr);
2261        if (ret)
2262                goto outkzalloc;
2263
2264        ret = device_create_file(&pd->dev, &th_handle->mode_attr);
2265        if (ret)
2266                goto outprofiles;
2267
2268        return 0;
2269
2270outprofiles:
2271        device_remove_file(&pd->dev, &th_handle->profiles_attr);
2272outkzalloc:
2273        kfree(th_handle);
2274        th_handle = NULL;
2275        return ret;
2276}
2277
2278static void sony_nc_thermal_cleanup(struct platform_device *pd)
2279{
2280        if (th_handle) {
2281                device_remove_file(&pd->dev, &th_handle->profiles_attr);
2282                device_remove_file(&pd->dev, &th_handle->mode_attr);
2283                kfree(th_handle);
2284                th_handle = NULL;
2285        }
2286}
2287
2288#ifdef CONFIG_PM_SLEEP
2289static void sony_nc_thermal_resume(void)
2290{
2291        int status;
2292
2293        if (!th_handle)
2294                return;
2295
2296        status = sony_nc_thermal_mode_get();
2297
2298        if (status != th_handle->mode)
2299                sony_nc_thermal_mode_set(th_handle->mode);
2300}
2301#endif
2302
2303/* resume on LID open */
2304#define LID_RESUME_S5   0
2305#define LID_RESUME_S4   1
2306#define LID_RESUME_S3   2
2307#define LID_RESUME_MAX  3
2308struct snc_lid_resume_control {
2309        struct device_attribute attrs[LID_RESUME_MAX];
2310        unsigned int status;
2311        int handle;
2312};
2313static struct snc_lid_resume_control *lid_ctl;
2314
2315static ssize_t sony_nc_lid_resume_store(struct device *dev,
2316                                        struct device_attribute *attr,
2317                                        const char *buffer, size_t count)
2318{
2319        unsigned int result;
2320        unsigned long value;
2321        unsigned int pos = LID_RESUME_S5;
2322        if (count > 31)
2323                return -EINVAL;
2324
2325        if (kstrtoul(buffer, 10, &value) || value > 1)
2326                return -EINVAL;
2327
2328        /* the value we have to write to SNC is a bitmask:
2329         * +--------------+
2330         * | S3 | S4 | S5 |
2331         * +--------------+
2332         *   2    1    0
2333         */
2334        while (pos < LID_RESUME_MAX) {
2335                if (&lid_ctl->attrs[pos].attr == &attr->attr)
2336                        break;
2337                pos++;
2338        }
2339        if (pos == LID_RESUME_MAX)
2340                return -EINVAL;
2341
2342        if (value)
2343                value = lid_ctl->status | (1 << pos);
2344        else
2345                value = lid_ctl->status & ~(1 << pos);
2346
2347        if (sony_call_snc_handle(lid_ctl->handle, value << 0x10 | 0x0100,
2348                                &result))
2349                return -EIO;
2350
2351        lid_ctl->status = value;
2352
2353        return count;
2354}
2355
2356static ssize_t sony_nc_lid_resume_show(struct device *dev,
2357                                        struct device_attribute *attr,
2358                                        char *buffer)
2359{
2360        unsigned int pos = LID_RESUME_S5;
2361
2362        while (pos < LID_RESUME_MAX) {
2363                if (&lid_ctl->attrs[pos].attr == &attr->attr)
2364                        return snprintf(buffer, PAGE_SIZE, "%d\n",
2365                                        (lid_ctl->status >> pos) & 0x01);
2366                pos++;
2367        }
2368        return -EINVAL;
2369}
2370
2371static int sony_nc_lid_resume_setup(struct platform_device *pd,
2372                                        unsigned int handle)
2373{
2374        unsigned int result;
2375        int i;
2376
2377        if (sony_call_snc_handle(handle, 0x0000, &result))
2378                return -EIO;
2379
2380        lid_ctl = kzalloc(sizeof(struct snc_lid_resume_control), GFP_KERNEL);
2381        if (!lid_ctl)
2382                return -ENOMEM;
2383
2384        lid_ctl->status = result & 0x7;
2385        lid_ctl->handle = handle;
2386
2387        sysfs_attr_init(&lid_ctl->attrs[0].attr);
2388        lid_ctl->attrs[LID_RESUME_S5].attr.name = "lid_resume_S5";
2389        lid_ctl->attrs[LID_RESUME_S5].attr.mode = S_IRUGO | S_IWUSR;
2390        lid_ctl->attrs[LID_RESUME_S5].show = sony_nc_lid_resume_show;
2391        lid_ctl->attrs[LID_RESUME_S5].store = sony_nc_lid_resume_store;
2392
2393        if (handle == 0x0119) {
2394                sysfs_attr_init(&lid_ctl->attrs[1].attr);
2395                lid_ctl->attrs[LID_RESUME_S4].attr.name = "lid_resume_S4";
2396                lid_ctl->attrs[LID_RESUME_S4].attr.mode = S_IRUGO | S_IWUSR;
2397                lid_ctl->attrs[LID_RESUME_S4].show = sony_nc_lid_resume_show;
2398                lid_ctl->attrs[LID_RESUME_S4].store = sony_nc_lid_resume_store;
2399
2400                sysfs_attr_init(&lid_ctl->attrs[2].attr);
2401                lid_ctl->attrs[LID_RESUME_S3].attr.name = "lid_resume_S3";
2402                lid_ctl->attrs[LID_RESUME_S3].attr.mode = S_IRUGO | S_IWUSR;
2403                lid_ctl->attrs[LID_RESUME_S3].show = sony_nc_lid_resume_show;
2404                lid_ctl->attrs[LID_RESUME_S3].store = sony_nc_lid_resume_store;
2405        }
2406        for (i = 0; i < LID_RESUME_MAX &&
2407                        lid_ctl->attrs[i].attr.name; i++) {
2408                result = device_create_file(&pd->dev, &lid_ctl->attrs[i]);
2409                if (result)
2410                        goto liderror;
2411        }
2412
2413        return 0;
2414
2415liderror:
2416        for (i--; i >= 0; i--)
2417                device_remove_file(&pd->dev, &lid_ctl->attrs[i]);
2418
2419        kfree(lid_ctl);
2420        lid_ctl = NULL;
2421
2422        return result;
2423}
2424
2425static void sony_nc_lid_resume_cleanup(struct platform_device *pd)
2426{
2427        int i;
2428
2429        if (lid_ctl) {
2430                for (i = 0; i < LID_RESUME_MAX; i++) {
2431                        if (!lid_ctl->attrs[i].attr.name)
2432                                break;
2433
2434                        device_remove_file(&pd->dev, &lid_ctl->attrs[i]);
2435                }
2436
2437                kfree(lid_ctl);
2438                lid_ctl = NULL;
2439        }
2440}
2441
2442/* GFX Switch position */
2443enum gfx_switch {
2444        SPEED,
2445        STAMINA,
2446        AUTO
2447};
2448struct snc_gfx_switch_control {
2449        struct device_attribute attr;
2450        unsigned int handle;
2451};
2452static struct snc_gfx_switch_control *gfxs_ctl;
2453
2454/* returns 0 for speed, 1 for stamina */
2455static int __sony_nc_gfx_switch_status_get(void)
2456{
2457        unsigned int result;
2458
2459        if (sony_call_snc_handle(gfxs_ctl->handle,
2460                                gfxs_ctl->handle == 0x015B ? 0x0000 : 0x0100,
2461                                &result))
2462                return -EIO;
2463
2464        switch (gfxs_ctl->handle) {
2465        case 0x0146:
2466                /* 1: discrete GFX (speed)
2467                 * 0: integrated GFX (stamina)
2468                 */
2469                return result & 0x1 ? SPEED : STAMINA;
2470                break;
2471        case 0x015B:
2472                /* 0: discrete GFX (speed)
2473                 * 1: integrated GFX (stamina)
2474                 */
2475                return result & 0x1 ? STAMINA : SPEED;
2476                break;
2477        case 0x0128:
2478                /* it's a more elaborated bitmask, for now:
2479                 * 2: integrated GFX (stamina)
2480                 * 0: discrete GFX (speed)
2481                 */
2482                dprintk("GFX Status: 0x%x\n", result);
2483                return result & 0x80 ? AUTO :
2484                        result & 0x02 ? STAMINA : SPEED;
2485                break;
2486        }
2487        return -EINVAL;
2488}
2489
2490static ssize_t sony_nc_gfx_switch_status_show(struct device *dev,
2491                                       struct device_attribute *attr,
2492                                       char *buffer)
2493{
2494        int pos = __sony_nc_gfx_switch_status_get();
2495
2496        if (pos < 0)
2497                return pos;
2498
2499        return snprintf(buffer, PAGE_SIZE, "%s\n",
2500                                        pos == SPEED ? "speed" :
2501                                        pos == STAMINA ? "stamina" :
2502                                        pos == AUTO ? "auto" : "unknown");
2503}
2504
2505static int sony_nc_gfx_switch_setup(struct platform_device *pd,
2506                unsigned int handle)
2507{
2508        unsigned int result;
2509
2510        gfxs_ctl = kzalloc(sizeof(struct snc_gfx_switch_control), GFP_KERNEL);
2511        if (!gfxs_ctl)
2512                return -ENOMEM;
2513
2514        gfxs_ctl->handle = handle;
2515
2516        sysfs_attr_init(&gfxs_ctl->attr.attr);
2517        gfxs_ctl->attr.attr.name = "gfx_switch_status";
2518        gfxs_ctl->attr.attr.mode = S_IRUGO;
2519        gfxs_ctl->attr.show = sony_nc_gfx_switch_status_show;
2520
2521        result = device_create_file(&pd->dev, &gfxs_ctl->attr);
2522        if (result)
2523                goto gfxerror;
2524
2525        return 0;
2526
2527gfxerror:
2528        kfree(gfxs_ctl);
2529        gfxs_ctl = NULL;
2530
2531        return result;
2532}
2533
2534static void sony_nc_gfx_switch_cleanup(struct platform_device *pd)
2535{
2536        if (gfxs_ctl) {
2537                device_remove_file(&pd->dev, &gfxs_ctl->attr);
2538
2539                kfree(gfxs_ctl);
2540                gfxs_ctl = NULL;
2541        }
2542}
2543
2544/* High speed charging function */
2545static struct device_attribute *hsc_handle;
2546
2547static ssize_t sony_nc_highspeed_charging_store(struct device *dev,
2548                struct device_attribute *attr,
2549                const char *buffer, size_t count)
2550{
2551        unsigned int result;
2552        unsigned long value;
2553
2554        if (count > 31)
2555                return -EINVAL;
2556
2557        if (kstrtoul(buffer, 10, &value) || value > 1)
2558                return -EINVAL;
2559
2560        if (sony_call_snc_handle(0x0131, value << 0x10 | 0x0200, &result))
2561                return -EIO;
2562
2563        return count;
2564}
2565
2566static ssize_t sony_nc_highspeed_charging_show(struct device *dev,
2567                struct device_attribute *attr, char *buffer)
2568{
2569        unsigned int result;
2570
2571        if (sony_call_snc_handle(0x0131, 0x0100, &result))
2572                return -EIO;
2573
2574        return snprintf(buffer, PAGE_SIZE, "%d\n", result & 0x01);
2575}
2576
2577static int sony_nc_highspeed_charging_setup(struct platform_device *pd)
2578{
2579        unsigned int result;
2580
2581        if (sony_call_snc_handle(0x0131, 0x0000, &result) || !(result & 0x01)) {
2582                /* some models advertise the handle but have no implementation
2583                 * for it
2584                 */
2585                pr_info("No High Speed Charging capability found\n");
2586                return 0;
2587        }
2588
2589        hsc_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2590        if (!hsc_handle)
2591                return -ENOMEM;
2592
2593        sysfs_attr_init(&hsc_handle->attr);
2594        hsc_handle->attr.name = "battery_highspeed_charging";
2595        hsc_handle->attr.mode = S_IRUGO | S_IWUSR;
2596        hsc_handle->show = sony_nc_highspeed_charging_show;
2597        hsc_handle->store = sony_nc_highspeed_charging_store;
2598
2599        result = device_create_file(&pd->dev, hsc_handle);
2600        if (result) {
2601                kfree(hsc_handle);
2602                hsc_handle = NULL;
2603                return result;
2604        }
2605
2606        return 0;
2607}
2608
2609static void sony_nc_highspeed_charging_cleanup(struct platform_device *pd)
2610{
2611        if (hsc_handle) {
2612                device_remove_file(&pd->dev, hsc_handle);
2613                kfree(hsc_handle);
2614                hsc_handle = NULL;
2615        }
2616}
2617
2618/* low battery function */
2619static struct device_attribute *lowbatt_handle;
2620
2621static ssize_t sony_nc_lowbatt_store(struct device *dev,
2622                struct device_attribute *attr,
2623                const char *buffer, size_t count)
2624{
2625        unsigned int result;
2626        unsigned long value;
2627
2628        if (count > 31)
2629                return -EINVAL;
2630
2631        if (kstrtoul(buffer, 10, &value) || value > 1)
2632                return -EINVAL;
2633
2634        if (sony_call_snc_handle(0x0121, value << 8, &result))
2635                return -EIO;
2636
2637        return count;
2638}
2639
2640static ssize_t sony_nc_lowbatt_show(struct device *dev,
2641                struct device_attribute *attr, char *buffer)
2642{
2643        unsigned int result;
2644
2645        if (sony_call_snc_handle(0x0121, 0x0200, &result))
2646                return -EIO;
2647
2648        return snprintf(buffer, PAGE_SIZE, "%d\n", result & 1);
2649}
2650
2651static int sony_nc_lowbatt_setup(struct platform_device *pd)
2652{
2653        unsigned int result;
2654
2655        lowbatt_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2656        if (!lowbatt_handle)
2657                return -ENOMEM;
2658
2659        sysfs_attr_init(&lowbatt_handle->attr);
2660        lowbatt_handle->attr.name = "lowbatt_hibernate";
2661        lowbatt_handle->attr.mode = S_IRUGO | S_IWUSR;
2662        lowbatt_handle->show = sony_nc_lowbatt_show;
2663        lowbatt_handle->store = sony_nc_lowbatt_store;
2664
2665        result = device_create_file(&pd->dev, lowbatt_handle);
2666        if (result) {
2667                kfree(lowbatt_handle);
2668                lowbatt_handle = NULL;
2669                return result;
2670        }
2671
2672        return 0;
2673}
2674
2675static void sony_nc_lowbatt_cleanup(struct platform_device *pd)
2676{
2677        if (lowbatt_handle) {
2678                device_remove_file(&pd->dev, lowbatt_handle);
2679                kfree(lowbatt_handle);
2680                lowbatt_handle = NULL;
2681        }
2682}
2683
2684/* fan speed function */
2685static struct device_attribute *fan_handle, *hsf_handle;
2686
2687static ssize_t sony_nc_hsfan_store(struct device *dev,
2688                struct device_attribute *attr,
2689                const char *buffer, size_t count)
2690{
2691        unsigned int result;
2692        unsigned long value;
2693
2694        if (count > 31)
2695                return -EINVAL;
2696
2697        if (kstrtoul(buffer, 10, &value) || value > 1)
2698                return -EINVAL;
2699
2700        if (sony_call_snc_handle(0x0149, value << 0x10 | 0x0200, &result))
2701                return -EIO;
2702
2703        return count;
2704}
2705
2706static ssize_t sony_nc_hsfan_show(struct device *dev,
2707                struct device_attribute *attr, char *buffer)
2708{
2709        unsigned int result;
2710
2711        if (sony_call_snc_handle(0x0149, 0x0100, &result))
2712                return -EIO;
2713
2714        return snprintf(buffer, PAGE_SIZE, "%d\n", result & 0x01);
2715}
2716
2717static ssize_t sony_nc_fanspeed_show(struct device *dev,
2718                struct device_attribute *attr, char *buffer)
2719{
2720        unsigned int result;
2721
2722        if (sony_call_snc_handle(0x0149, 0x0300, &result))
2723                return -EIO;
2724
2725        return snprintf(buffer, PAGE_SIZE, "%d\n", result & 0xff);
2726}
2727
2728static int sony_nc_fanspeed_setup(struct platform_device *pd)
2729{
2730        unsigned int result;
2731
2732        fan_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2733        if (!fan_handle)
2734                return -ENOMEM;
2735
2736        hsf_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2737        if (!hsf_handle) {
2738                result = -ENOMEM;
2739                goto out_hsf_handle_alloc;
2740        }
2741
2742        sysfs_attr_init(&fan_handle->attr);
2743        fan_handle->attr.name = "fanspeed";
2744        fan_handle->attr.mode = S_IRUGO;
2745        fan_handle->show = sony_nc_fanspeed_show;
2746        fan_handle->store = NULL;
2747
2748        sysfs_attr_init(&hsf_handle->attr);
2749        hsf_handle->attr.name = "fan_forced";
2750        hsf_handle->attr.mode = S_IRUGO | S_IWUSR;
2751        hsf_handle->show = sony_nc_hsfan_show;
2752        hsf_handle->store = sony_nc_hsfan_store;
2753
2754        result = device_create_file(&pd->dev, fan_handle);
2755        if (result)
2756                goto out_fan_handle;
2757
2758        result = device_create_file(&pd->dev, hsf_handle);
2759        if (result)
2760                goto out_hsf_handle;
2761
2762        return 0;
2763
2764out_hsf_handle:
2765        device_remove_file(&pd->dev, fan_handle);
2766
2767out_fan_handle:
2768        kfree(hsf_handle);
2769        hsf_handle = NULL;
2770
2771out_hsf_handle_alloc:
2772        kfree(fan_handle);
2773        fan_handle = NULL;
2774        return result;
2775}
2776
2777static void sony_nc_fanspeed_cleanup(struct platform_device *pd)
2778{
2779        if (fan_handle) {
2780                device_remove_file(&pd->dev, fan_handle);
2781                kfree(fan_handle);
2782                fan_handle = NULL;
2783        }
2784        if (hsf_handle) {
2785                device_remove_file(&pd->dev, hsf_handle);
2786                kfree(hsf_handle);
2787                hsf_handle = NULL;
2788        }
2789}
2790
2791/* USB charge function */
2792static struct device_attribute *uc_handle;
2793
2794static ssize_t sony_nc_usb_charge_store(struct device *dev,
2795                struct device_attribute *attr,
2796                const char *buffer, size_t count)
2797{
2798        unsigned int result;
2799        unsigned long value;
2800
2801        if (count > 31)
2802                return -EINVAL;
2803
2804        if (kstrtoul(buffer, 10, &value) || value > 1)
2805                return -EINVAL;
2806
2807        if (sony_call_snc_handle(0x0155, value << 0x10 | 0x0100, &result))
2808                return -EIO;
2809
2810        return count;
2811}
2812
2813static ssize_t sony_nc_usb_charge_show(struct device *dev,
2814                struct device_attribute *attr, char *buffer)
2815{
2816        unsigned int result;
2817
2818        if (sony_call_snc_handle(0x0155, 0x0000, &result))
2819                return -EIO;
2820
2821        return snprintf(buffer, PAGE_SIZE, "%d\n", result & 0x01);
2822}
2823
2824static int sony_nc_usb_charge_setup(struct platform_device *pd)
2825{
2826        unsigned int result;
2827
2828        if (sony_call_snc_handle(0x0155, 0x0000, &result) || !(result & 0x01)) {
2829                /* some models advertise the handle but have no implementation
2830                 * for it
2831                 */
2832                pr_info("No USB Charge capability found\n");
2833                return 0;
2834        }
2835
2836        uc_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2837        if (!uc_handle)
2838                return -ENOMEM;
2839
2840        sysfs_attr_init(&uc_handle->attr);
2841        uc_handle->attr.name = "usb_charge";
2842        uc_handle->attr.mode = S_IRUGO | S_IWUSR;
2843        uc_handle->show = sony_nc_usb_charge_show;
2844        uc_handle->store = sony_nc_usb_charge_store;
2845
2846        result = device_create_file(&pd->dev, uc_handle);
2847        if (result) {
2848                kfree(uc_handle);
2849                uc_handle = NULL;
2850                return result;
2851        }
2852
2853        return 0;
2854}
2855
2856static void sony_nc_usb_charge_cleanup(struct platform_device *pd)
2857{
2858        if (uc_handle) {
2859                device_remove_file(&pd->dev, uc_handle);
2860                kfree(uc_handle);
2861                uc_handle = NULL;
2862        }
2863}
2864
2865/* Panel ID function */
2866static struct device_attribute *panel_handle;
2867
2868static ssize_t sony_nc_panelid_show(struct device *dev,
2869                struct device_attribute *attr, char *buffer)
2870{
2871        unsigned int result;
2872
2873        if (sony_call_snc_handle(0x011D, 0x0000, &result))
2874                return -EIO;
2875
2876        return snprintf(buffer, PAGE_SIZE, "%d\n", result);
2877}
2878
2879static int sony_nc_panelid_setup(struct platform_device *pd)
2880{
2881        unsigned int result;
2882
2883        panel_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2884        if (!panel_handle)
2885                return -ENOMEM;
2886
2887        sysfs_attr_init(&panel_handle->attr);
2888        panel_handle->attr.name = "panel_id";
2889        panel_handle->attr.mode = S_IRUGO;
2890        panel_handle->show = sony_nc_panelid_show;
2891        panel_handle->store = NULL;
2892
2893        result = device_create_file(&pd->dev, panel_handle);
2894        if (result) {
2895                kfree(panel_handle);
2896                panel_handle = NULL;
2897                return result;
2898        }
2899
2900        return 0;
2901}
2902
2903static void sony_nc_panelid_cleanup(struct platform_device *pd)
2904{
2905        if (panel_handle) {
2906                device_remove_file(&pd->dev, panel_handle);
2907                kfree(panel_handle);
2908                panel_handle = NULL;
2909        }
2910}
2911
2912/* smart connect function */
2913static struct device_attribute *sc_handle;
2914
2915static ssize_t sony_nc_smart_conn_store(struct device *dev,
2916                struct device_attribute *attr,
2917                const char *buffer, size_t count)
2918{
2919        unsigned int result;
2920        unsigned long value;
2921
2922        if (count > 31)
2923                return -EINVAL;
2924
2925        if (kstrtoul(buffer, 10, &value) || value > 1)
2926                return -EINVAL;
2927
2928        if (sony_call_snc_handle(0x0168, value << 0x10, &result))
2929                return -EIO;
2930
2931        return count;
2932}
2933
2934static int sony_nc_smart_conn_setup(struct platform_device *pd)
2935{
2936        unsigned int result;
2937
2938        sc_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
2939        if (!sc_handle)
2940                return -ENOMEM;
2941
2942        sysfs_attr_init(&sc_handle->attr);
2943        sc_handle->attr.name = "smart_connect";
2944        sc_handle->attr.mode = S_IWUSR;
2945        sc_handle->show = NULL;
2946        sc_handle->store = sony_nc_smart_conn_store;
2947
2948        result = device_create_file(&pd->dev, sc_handle);
2949        if (result) {
2950                kfree(sc_handle);
2951                sc_handle = NULL;
2952                return result;
2953        }
2954
2955        return 0;
2956}
2957
2958static void sony_nc_smart_conn_cleanup(struct platform_device *pd)
2959{
2960        if (sc_handle) {
2961                device_remove_file(&pd->dev, sc_handle);
2962                kfree(sc_handle);
2963                sc_handle = NULL;
2964        }
2965}
2966
2967/* Touchpad enable/disable */
2968struct touchpad_control {
2969        struct device_attribute attr;
2970        int handle;
2971};
2972static struct touchpad_control *tp_ctl;
2973
2974static ssize_t sony_nc_touchpad_store(struct device *dev,
2975                struct device_attribute *attr, const char *buffer, size_t count)
2976{
2977        unsigned int result;
2978        unsigned long value;
2979
2980        if (count > 31)
2981                return -EINVAL;
2982
2983        if (kstrtoul(buffer, 10, &value) || value > 1)
2984                return -EINVAL;
2985
2986        /* sysfs: 0 disabled, 1 enabled
2987         * EC: 0 enabled, 1 disabled
2988         */
2989        if (sony_call_snc_handle(tp_ctl->handle,
2990                                (!value << 0x10) | 0x100, &result))
2991                return -EIO;
2992
2993        return count;
2994}
2995
2996static ssize_t sony_nc_touchpad_show(struct device *dev,
2997                struct device_attribute *attr, char *buffer)
2998{
2999        unsigned int result;
3000
3001        if (sony_call_snc_handle(tp_ctl->handle, 0x000, &result))
3002                return -EINVAL;
3003
3004        return snprintf(buffer, PAGE_SIZE, "%d\n", !(result & 0x01));
3005}
3006
3007static int sony_nc_touchpad_setup(struct platform_device *pd,
3008                unsigned int handle)
3009{
3010        int ret = 0;
3011
3012        tp_ctl = kzalloc(sizeof(struct touchpad_control), GFP_KERNEL);
3013        if (!tp_ctl)
3014                return -ENOMEM;
3015
3016        tp_ctl->handle = handle;
3017
3018        sysfs_attr_init(&tp_ctl->attr.attr);
3019        tp_ctl->attr.attr.name = "touchpad";
3020        tp_ctl->attr.attr.mode = S_IRUGO | S_IWUSR;
3021        tp_ctl->attr.show = sony_nc_touchpad_show;
3022        tp_ctl->attr.store = sony_nc_touchpad_store;
3023
3024        ret = device_create_file(&pd->dev, &tp_ctl->attr);
3025        if (ret) {
3026                kfree(tp_ctl);
3027                tp_ctl = NULL;
3028        }
3029
3030        return ret;
3031}
3032
3033static void sony_nc_touchpad_cleanup(struct platform_device *pd)
3034{
3035        if (tp_ctl) {
3036                device_remove_file(&pd->dev, &tp_ctl->attr);
3037                kfree(tp_ctl);
3038                tp_ctl = NULL;
3039        }
3040}
3041
3042static void sony_nc_backlight_ng_read_limits(int handle,
3043                struct sony_backlight_props *props)
3044{
3045        u64 offset;
3046        int i;
3047        int lvl_table_len = 0;
3048        u8 min = 0xff, max = 0x00;
3049        unsigned char buffer[32] = { 0 };
3050
3051        props->handle = handle;
3052        props->offset = 0;
3053        props->maxlvl = 0xff;
3054
3055        offset = sony_find_snc_handle(handle);
3056
3057        /* try to read the boundaries from ACPI tables, if we fail the above
3058         * defaults should be reasonable
3059         */
3060        i = sony_nc_buffer_call(sony_nc_acpi_handle, "SN06", &offset, buffer,
3061                        32);
3062        if (i < 0)
3063                return;
3064
3065        switch (handle) {
3066        case 0x012f:
3067        case 0x0137:
3068                lvl_table_len = 9;
3069                break;
3070        case 0x143:
3071        case 0x14b:
3072        case 0x14c:
3073                lvl_table_len = 16;
3074                break;
3075        }
3076
3077        /* the buffer lists brightness levels available, brightness levels are
3078         * from position 0 to 8 in the array, other values are used by ALS
3079         * control.
3080         */
3081        for (i = 0; i < lvl_table_len && i < ARRAY_SIZE(buffer); i++) {
3082
3083                dprintk("Brightness level: %d\n", buffer[i]);
3084
3085                if (!buffer[i])
3086                        break;
3087
3088                if (buffer[i] > max)
3089                        max = buffer[i];
3090                if (buffer[i] < min)
3091                        min = buffer[i];
3092        }
3093        props->offset = min;
3094        props->maxlvl = max;
3095        dprintk("Brightness levels: min=%d max=%d\n", props->offset,
3096                        props->maxlvl);
3097}
3098
3099static void sony_nc_backlight_setup(void)
3100{
3101        int max_brightness = 0;
3102        const struct backlight_ops *ops = NULL;
3103        struct backlight_properties props;
3104
3105        if (sony_find_snc_handle(0x12f) >= 0) {
3106                ops = &sony_backlight_ng_ops;
3107                sony_bl_props.cmd_base = 0x0100;
3108                sony_nc_backlight_ng_read_limits(0x12f, &sony_bl_props);
3109                max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
3110
3111        } else if (sony_find_snc_handle(0x137) >= 0) {
3112                ops = &sony_backlight_ng_ops;
3113                sony_bl_props.cmd_base = 0x0100;
3114                sony_nc_backlight_ng_read_limits(0x137, &sony_bl_props);
3115                max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
3116
3117        } else if (sony_find_snc_handle(0x143) >= 0) {
3118                ops = &sony_backlight_ng_ops;
3119                sony_bl_props.cmd_base = 0x3000;
3120                sony_nc_backlight_ng_read_limits(0x143, &sony_bl_props);
3121                max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
3122
3123        } else if (sony_find_snc_handle(0x14b) >= 0) {
3124                ops = &sony_backlight_ng_ops;
3125                sony_bl_props.cmd_base = 0x3000;
3126                sony_nc_backlight_ng_read_limits(0x14b, &sony_bl_props);
3127                max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
3128
3129        } else if (sony_find_snc_handle(0x14c) >= 0) {
3130                ops = &sony_backlight_ng_ops;
3131                sony_bl_props.cmd_base = 0x3000;
3132                sony_nc_backlight_ng_read_limits(0x14c, &sony_bl_props);
3133                max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
3134
3135        } else if (acpi_has_method(sony_nc_acpi_handle, "GBRT")) {
3136                ops = &sony_backlight_ops;
3137                max_brightness = SONY_MAX_BRIGHTNESS - 1;
3138
3139        } else
3140                return;
3141
3142        memset(&props, 0, sizeof(struct backlight_properties));
3143        props.type = BACKLIGHT_PLATFORM;
3144        props.max_brightness = max_brightness;
3145        sony_bl_props.dev = backlight_device_register("sony", NULL,
3146                                                      &sony_bl_props,
3147                                                      ops, &props);
3148
3149        if (IS_ERR(sony_bl_props.dev)) {
3150                pr_warn("unable to register backlight device\n");
3151                sony_bl_props.dev = NULL;
3152        } else
3153                sony_bl_props.dev->props.brightness =
3154                        ops->get_brightness(sony_bl_props.dev);
3155}
3156
3157static void sony_nc_backlight_cleanup(void)
3158{
3159        backlight_device_unregister(sony_bl_props.dev);
3160}
3161
3162static int sony_nc_add(struct acpi_device *device)
3163{
3164        acpi_status status;
3165        int result = 0;
3166        struct sony_nc_value *item;
3167
3168        sony_nc_acpi_device = device;
3169        strcpy(acpi_device_class(device), "sony/hotkey");
3170
3171        sony_nc_acpi_handle = device->handle;
3172
3173        /* read device status */
3174        result = acpi_bus_get_status(device);
3175        /* bail IFF the above call was successful and the device is not present */
3176        if (!result && !device->status.present) {
3177                dprintk("Device not present\n");
3178                result = -ENODEV;
3179                goto outwalk;
3180        }
3181
3182        result = sony_pf_add();
3183        if (result)
3184                goto outpresent;
3185
3186        if (debug) {
3187                status = acpi_walk_namespace(ACPI_TYPE_METHOD,
3188                                sony_nc_acpi_handle, 1, sony_walk_callback,
3189                                NULL, NULL, NULL);
3190                if (ACPI_FAILURE(status)) {
3191                        pr_warn("unable to walk acpi resources\n");
3192                        result = -ENODEV;
3193                        goto outpresent;
3194                }
3195        }
3196
3197        result = sony_laptop_setup_input(device);
3198        if (result) {
3199                pr_err("Unable to create input devices\n");
3200                goto outplatform;
3201        }
3202
3203        if (acpi_has_method(sony_nc_acpi_handle, "ECON")) {
3204                int arg = 1;
3205                if (sony_nc_int_call(sony_nc_acpi_handle, "ECON", &arg, NULL))
3206                        dprintk("ECON Method failed\n");
3207        }
3208
3209        if (acpi_has_method(sony_nc_acpi_handle, "SN00")) {
3210                dprintk("Doing SNC setup\n");
3211                /* retrieve the available handles */
3212                result = sony_nc_handles_setup(sony_pf_device);
3213                if (!result)
3214                        sony_nc_function_setup(device, sony_pf_device);
3215        }
3216
3217        if (acpi_video_get_backlight_type() == acpi_backlight_vendor)
3218                sony_nc_backlight_setup();
3219
3220        /* create sony_pf sysfs attributes related to the SNC device */
3221        for (item = sony_nc_values; item->name; ++item) {
3222
3223                if (!debug && item->debug)
3224                        continue;
3225
3226                /* find the available acpiget as described in the DSDT */
3227                for (; item->acpiget && *item->acpiget; ++item->acpiget) {
3228                        if (acpi_has_method(sony_nc_acpi_handle,
3229                                                        *item->acpiget)) {
3230                                dprintk("Found %s getter: %s\n",
3231                                                item->name, *item->acpiget);
3232                                item->devattr.attr.mode |= S_IRUGO;
3233                                break;
3234                        }
3235                }
3236
3237                /* find the available acpiset as described in the DSDT */
3238                for (; item->acpiset && *item->acpiset; ++item->acpiset) {
3239                        if (acpi_has_method(sony_nc_acpi_handle,
3240                                                        *item->acpiset)) {
3241                                dprintk("Found %s setter: %s\n",
3242                                                item->name, *item->acpiset);
3243                                item->devattr.attr.mode |= S_IWUSR;
3244                                break;
3245                        }
3246                }
3247
3248                if (item->devattr.attr.mode != 0) {
3249                        result =
3250                            device_create_file(&sony_pf_device->dev,
3251                                               &item->devattr);
3252                        if (result)
3253                                goto out_sysfs;
3254                }
3255        }
3256
3257        pr_info("SNC setup done.\n");
3258        return 0;
3259
3260out_sysfs:
3261        for (item = sony_nc_values; item->name; ++item) {
3262                device_remove_file(&sony_pf_device->dev, &item->devattr);
3263        }
3264        sony_nc_backlight_cleanup();
3265        sony_nc_function_cleanup(sony_pf_device);
3266        sony_nc_handles_cleanup(sony_pf_device);
3267
3268outplatform:
3269        sony_laptop_remove_input();
3270
3271outpresent:
3272        sony_pf_remove();
3273
3274outwalk:
3275        sony_nc_rfkill_cleanup();
3276        return result;
3277}
3278
3279static int sony_nc_remove(struct acpi_device *device)
3280{
3281        struct sony_nc_value *item;
3282
3283        sony_nc_backlight_cleanup();
3284
3285        sony_nc_acpi_device = NULL;
3286
3287        for (item = sony_nc_values; item->name; ++item) {
3288                device_remove_file(&sony_pf_device->dev, &item->devattr);
3289        }
3290
3291        sony_nc_function_cleanup(sony_pf_device);
3292        sony_nc_handles_cleanup(sony_pf_device);
3293        sony_pf_remove();
3294        sony_laptop_remove_input();
3295        dprintk(SONY_NC_DRIVER_NAME " removed.\n");
3296
3297        return 0;
3298}
3299
3300static const struct acpi_device_id sony_device_ids[] = {
3301        {SONY_NC_HID, 0},
3302        {SONY_PIC_HID, 0},
3303        {"", 0},
3304};
3305MODULE_DEVICE_TABLE(acpi, sony_device_ids);
3306
3307static const struct acpi_device_id sony_nc_device_ids[] = {
3308        {SONY_NC_HID, 0},
3309        {"", 0},
3310};
3311
3312static struct acpi_driver sony_nc_driver = {
3313        .name = SONY_NC_DRIVER_NAME,
3314        .class = SONY_NC_CLASS,
3315        .ids = sony_nc_device_ids,
3316        .owner = THIS_MODULE,
3317        .ops = {
3318                .add = sony_nc_add,
3319                .remove = sony_nc_remove,
3320                .notify = sony_nc_notify,
3321                },
3322        .drv.pm = &sony_nc_pm,
3323};
3324
3325/*********** SPIC (SNY6001) Device ***********/
3326
3327#define SONYPI_DEVICE_TYPE1     0x00000001
3328#define SONYPI_DEVICE_TYPE2     0x00000002
3329#define SONYPI_DEVICE_TYPE3     0x00000004
3330
3331#define SONYPI_TYPE1_OFFSET     0x04
3332#define SONYPI_TYPE2_OFFSET     0x12
3333#define SONYPI_TYPE3_OFFSET     0x12
3334
3335struct sony_pic_ioport {
3336        struct acpi_resource_io io1;
3337        struct acpi_resource_io io2;
3338        struct list_head        list;
3339};
3340
3341struct sony_pic_irq {
3342        struct acpi_resource_irq        irq;
3343        struct list_head                list;
3344};
3345
3346struct sonypi_eventtypes {
3347        u8                      data;
3348        unsigned long           mask;
3349        struct sonypi_event     *events;
3350};
3351
3352struct sony_pic_dev {
3353        struct acpi_device              *acpi_dev;
3354        struct sony_pic_irq             *cur_irq;
3355        struct sony_pic_ioport          *cur_ioport;
3356        struct list_head                interrupts;
3357        struct list_head                ioports;
3358        struct mutex                    lock;
3359        struct sonypi_eventtypes        *event_types;
3360        int                             (*handle_irq)(const u8, const u8);
3361        int                             model;
3362        u16                             evport_offset;
3363        u8                              camera_power;
3364        u8                              bluetooth_power;
3365        u8                              wwan_power;
3366};
3367
3368static struct sony_pic_dev spic_dev = {
3369        .interrupts     = LIST_HEAD_INIT(spic_dev.interrupts),
3370        .ioports        = LIST_HEAD_INIT(spic_dev.ioports),
3371};
3372
3373static int spic_drv_registered;
3374
3375/* Event masks */
3376#define SONYPI_JOGGER_MASK                      0x00000001
3377#define SONYPI_CAPTURE_MASK                     0x00000002
3378#define SONYPI_FNKEY_MASK                       0x00000004
3379#define SONYPI_BLUETOOTH_MASK                   0x00000008
3380#define SONYPI_PKEY_MASK                        0x00000010
3381#define SONYPI_BACK_MASK                        0x00000020
3382#define SONYPI_HELP_MASK                        0x00000040
3383#define SONYPI_LID_MASK                         0x00000080
3384#define SONYPI_ZOOM_MASK                        0x00000100
3385#define SONYPI_THUMBPHRASE_MASK                 0x00000200
3386#define SONYPI_MEYE_MASK                        0x00000400
3387#define SONYPI_MEMORYSTICK_MASK                 0x00000800
3388#define SONYPI_BATTERY_MASK                     0x00001000
3389#define SONYPI_WIRELESS_MASK                    0x00002000
3390
3391struct sonypi_event {
3392        u8      data;
3393        u8      event;
3394};
3395
3396/* The set of possible button release events */
3397static struct sonypi_event sonypi_releaseev[] = {
3398        { 0x00, SONYPI_EVENT_ANYBUTTON_RELEASED },
3399        { 0, 0 }
3400};
3401
3402/* The set of possible jogger events  */
3403static struct sonypi_event sonypi_joggerev[] = {
3404        { 0x1f, SONYPI_EVENT_JOGDIAL_UP },
3405        { 0x01, SONYPI_EVENT_JOGDIAL_DOWN },
3406        { 0x5f, SONYPI_EVENT_JOGDIAL_UP_PRESSED },
3407        { 0x41, SONYPI_EVENT_JOGDIAL_DOWN_PRESSED },
3408        { 0x1e, SONYPI_EVENT_JOGDIAL_FAST_UP },
3409        { 0x02, SONYPI_EVENT_JOGDIAL_FAST_DOWN },
3410        { 0x5e, SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED },
3411        { 0x42, SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED },
3412        { 0x1d, SONYPI_EVENT_JOGDIAL_VFAST_UP },
3413        { 0x03, SONYPI_EVENT_JOGDIAL_VFAST_DOWN },
3414        { 0x5d, SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED },
3415        { 0x43, SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED },
3416        { 0x40, SONYPI_EVENT_JOGDIAL_PRESSED },
3417        { 0, 0 }
3418};
3419
3420/* The set of possible capture button events */
3421static struct sonypi_event sonypi_captureev[] = {
3422        { 0x05, SONYPI_EVENT_CAPTURE_PARTIALPRESSED },
3423        { 0x07, SONYPI_EVENT_CAPTURE_PRESSED },
3424        { 0x40, SONYPI_EVENT_CAPTURE_PRESSED },
3425        { 0x01, SONYPI_EVENT_CAPTURE_PARTIALRELEASED },
3426        { 0, 0 }
3427};
3428
3429/* The set of possible fnkeys events */
3430static struct sonypi_event sonypi_fnkeyev[] = {
3431        { 0x10, SONYPI_EVENT_FNKEY_ESC },
3432        { 0x11, SONYPI_EVENT_FNKEY_F1 },
3433        { 0x12, SONYPI_EVENT_FNKEY_F2 },
3434        { 0x13, SONYPI_EVENT_FNKEY_F3 },
3435        { 0x14, SONYPI_EVENT_FNKEY_F4 },
3436        { 0x15, SONYPI_EVENT_FNKEY_F5 },
3437        { 0x16, SONYPI_EVENT_FNKEY_F6 },
3438        { 0x17, SONYPI_EVENT_FNKEY_F7 },
3439        { 0x18, SONYPI_EVENT_FNKEY_F8 },
3440        { 0x19, SONYPI_EVENT_FNKEY_F9 },
3441        { 0x1a, SONYPI_EVENT_FNKEY_F10 },
3442        { 0x1b, SONYPI_EVENT_FNKEY_F11 },
3443        { 0x1c, SONYPI_EVENT_FNKEY_F12 },
3444        { 0x1f, SONYPI_EVENT_FNKEY_RELEASED },
3445        { 0x21, SONYPI_EVENT_FNKEY_1 },
3446        { 0x22, SONYPI_EVENT_FNKEY_2 },
3447        { 0x31, SONYPI_EVENT_FNKEY_D },
3448        { 0x32, SONYPI_EVENT_FNKEY_E },
3449        { 0x33, SONYPI_EVENT_FNKEY_F },
3450        { 0x34, SONYPI_EVENT_FNKEY_S },
3451        { 0x35, SONYPI_EVENT_FNKEY_B },
3452        { 0x36, SONYPI_EVENT_FNKEY_ONLY },
3453        { 0, 0 }
3454};
3455
3456/* The set of possible program key events */
3457static struct sonypi_event sonypi_pkeyev[] = {
3458        { 0x01, SONYPI_EVENT_PKEY_P1 },
3459        { 0x02, SONYPI_EVENT_PKEY_P2 },
3460        { 0x04, SONYPI_EVENT_PKEY_P3 },
3461        { 0x20, SONYPI_EVENT_PKEY_P1 },
3462        { 0, 0 }
3463};
3464
3465/* The set of possible bluetooth events */
3466static struct sonypi_event sonypi_blueev[] = {
3467        { 0x55, SONYPI_EVENT_BLUETOOTH_PRESSED },
3468        { 0x59, SONYPI_EVENT_BLUETOOTH_ON },
3469        { 0x5a, SONYPI_EVENT_BLUETOOTH_OFF },
3470        { 0, 0 }
3471};
3472
3473/* The set of possible wireless events */
3474static struct sonypi_event sonypi_wlessev[] = {
3475        { 0x59, SONYPI_EVENT_IGNORE },
3476        { 0x5a, SONYPI_EVENT_IGNORE },
3477        { 0, 0 }
3478};
3479
3480/* The set of possible back button events */
3481static struct sonypi_event sonypi_backev[] = {
3482        { 0x20, SONYPI_EVENT_BACK_PRESSED },
3483        { 0, 0 }
3484};
3485
3486/* The set of possible help button events */
3487static struct sonypi_event sonypi_helpev[] = {
3488        { 0x3b, SONYPI_EVENT_HELP_PRESSED },
3489        { 0, 0 }
3490};
3491
3492
3493/* The set of possible lid events */
3494static struct sonypi_event sonypi_lidev[] = {
3495        { 0x51, SONYPI_EVENT_LID_CLOSED },
3496        { 0x50, SONYPI_EVENT_LID_OPENED },
3497        { 0, 0 }
3498};
3499
3500/* The set of possible zoom events */
3501static struct sonypi_event sonypi_zoomev[] = {
3502        { 0x39, SONYPI_EVENT_ZOOM_PRESSED },
3503        { 0x10, SONYPI_EVENT_ZOOM_IN_PRESSED },
3504        { 0x20, SONYPI_EVENT_ZOOM_OUT_PRESSED },
3505        { 0x04, SONYPI_EVENT_ZOOM_PRESSED },
3506        { 0, 0 }
3507};
3508
3509/* The set of possible thumbphrase events */
3510static struct sonypi_event sonypi_thumbphraseev[] = {
3511        { 0x3a, SONYPI_EVENT_THUMBPHRASE_PRESSED },
3512        { 0, 0 }
3513};
3514
3515/* The set of possible motioneye camera events */
3516static struct sonypi_event sonypi_meyeev[] = {
3517        { 0x00, SONYPI_EVENT_MEYE_FACE },
3518        { 0x01, SONYPI_EVENT_MEYE_OPPOSITE },
3519        { 0, 0 }
3520};
3521
3522/* The set of possible memorystick events */
3523static struct sonypi_event sonypi_memorystickev[] = {
3524        { 0x53, SONYPI_EVENT_MEMORYSTICK_INSERT },
3525        { 0x54, SONYPI_EVENT_MEMORYSTICK_EJECT },
3526        { 0, 0 }
3527};
3528
3529/* The set of possible battery events */
3530static struct sonypi_event sonypi_batteryev[] = {
3531        { 0x20, SONYPI_EVENT_BATTERY_INSERT },
3532        { 0x30, SONYPI_EVENT_BATTERY_REMOVE },
3533        { 0, 0 }
3534};
3535
3536/* The set of possible volume events */
3537static struct sonypi_event sonypi_volumeev[] = {
3538        { 0x01, SONYPI_EVENT_VOLUME_INC_PRESSED },
3539        { 0x02, SONYPI_EVENT_VOLUME_DEC_PRESSED },
3540        { 0, 0 }
3541};
3542
3543/* The set of possible brightness events */
3544static struct sonypi_event sonypi_brightnessev[] = {
3545        { 0x80, SONYPI_EVENT_BRIGHTNESS_PRESSED },
3546        { 0, 0 }
3547};
3548
3549static struct sonypi_eventtypes type1_events[] = {
3550        { 0, 0xffffffff, sonypi_releaseev },
3551        { 0x70, SONYPI_MEYE_MASK, sonypi_meyeev },
3552        { 0x30, SONYPI_LID_MASK, sonypi_lidev },
3553        { 0x60, SONYPI_CAPTURE_MASK, sonypi_captureev },
3554        { 0x10, SONYPI_JOGGER_MASK, sonypi_joggerev },
3555        { 0x20, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
3556        { 0x30, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
3557        { 0x40, SONYPI_PKEY_MASK, sonypi_pkeyev },
3558        { 0x30, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
3559        { 0x40, SONYPI_BATTERY_MASK, sonypi_batteryev },
3560        { 0 },
3561};
3562static struct sonypi_eventtypes type2_events[] = {
3563        { 0, 0xffffffff, sonypi_releaseev },
3564        { 0x38, SONYPI_LID_MASK, sonypi_lidev },
3565        { 0x11, SONYPI_JOGGER_MASK, sonypi_joggerev },
3566        { 0x61, SONYPI_CAPTURE_MASK, sonypi_captureev },
3567        { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
3568        { 0x31, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
3569        { 0x08, SONYPI_PKEY_MASK, sonypi_pkeyev },
3570        { 0x11, SONYPI_BACK_MASK, sonypi_backev },
3571        { 0x21, SONYPI_HELP_MASK, sonypi_helpev },
3572        { 0x21, SONYPI_ZOOM_MASK, sonypi_zoomev },
3573        { 0x20, SONYPI_THUMBPHRASE_MASK, sonypi_thumbphraseev },
3574        { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
3575        { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
3576        { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
3577        { 0 },
3578};
3579static struct sonypi_eventtypes type3_events[] = {
3580        { 0, 0xffffffff, sonypi_releaseev },
3581        { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
3582        { 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
3583        { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
3584        { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
3585        { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
3586        { 0x05, SONYPI_PKEY_MASK, sonypi_pkeyev },
3587        { 0x05, SONYPI_ZOOM_MASK, sonypi_zoomev },
3588        { 0x05, SONYPI_CAPTURE_MASK, sonypi_captureev },
3589        { 0x05, SONYPI_PKEY_MASK, sonypi_volumeev },
3590        { 0x05, SONYPI_PKEY_MASK, sonypi_brightnessev },
3591        { 0 },
3592};
3593
3594/* low level spic calls */
3595#define ITERATIONS_LONG         10000
3596#define ITERATIONS_SHORT        10
3597#define wait_on_command(command, iterations) {                          \
3598        unsigned int n = iterations;                                    \
3599        while (--n && (command))                                        \
3600                udelay(1);                                              \
3601        if (!n)                                                         \
3602                dprintk("command failed at %s : %s (line %d)\n",        \
3603                                __FILE__, __func__, __LINE__);  \
3604}
3605
3606static u8 sony_pic_call1(u8 dev)
3607{
3608        u8 v1, v2;
3609
3610        wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
3611                        ITERATIONS_LONG);
3612        outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
3613        v1 = inb_p(spic_dev.cur_ioport->io1.minimum + 4);
3614        v2 = inb_p(spic_dev.cur_ioport->io1.minimum);
3615        dprintk("sony_pic_call1(0x%.2x): 0x%.4x\n", dev, (v2 << 8) | v1);
3616        return v2;
3617}
3618
3619static u8 sony_pic_call2(u8 dev, u8 fn)
3620{
3621        u8 v1;
3622
3623        wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
3624                        ITERATIONS_LONG);
3625        outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
3626        wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
3627                        ITERATIONS_LONG);
3628        outb(fn, spic_dev.cur_ioport->io1.minimum);
3629        v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
3630        dprintk("sony_pic_call2(0x%.2x - 0x%.2x): 0x%.4x\n", dev, fn, v1);
3631        return v1;
3632}
3633
3634static u8 sony_pic_call3(u8 dev, u8 fn, u8 v)
3635{
3636        u8 v1;
3637
3638        wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
3639        outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
3640        wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
3641        outb(fn, spic_dev.cur_ioport->io1.minimum);
3642        wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
3643        outb(v, spic_dev.cur_ioport->io1.minimum);
3644        v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
3645        dprintk("sony_pic_call3(0x%.2x - 0x%.2x - 0x%.2x): 0x%.4x\n",
3646                        dev, fn, v, v1);
3647        return v1;
3648}
3649
3650/*
3651 * minidrivers for SPIC models
3652 */
3653static int type3_handle_irq(const u8 data_mask, const u8 ev)
3654{
3655        /*
3656         * 0x31 could mean we have to take some extra action and wait for
3657         * the next irq for some Type3 models, it will generate a new
3658         * irq and we can read new data from the device:
3659         *  - 0x5c and 0x5f requires 0xA0
3660         *  - 0x61 requires 0xB3
3661         */
3662        if (data_mask == 0x31) {
3663                if (ev == 0x5c || ev == 0x5f)
3664                        sony_pic_call1(0xA0);
3665                else if (ev == 0x61)
3666                        sony_pic_call1(0xB3);
3667                return 0;
3668        }
3669        return 1;
3670}
3671
3672static void sony_pic_detect_device_type(struct sony_pic_dev *dev)
3673{
3674        struct pci_dev *pcidev;
3675
3676        pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3677                        PCI_DEVICE_ID_INTEL_82371AB_3, NULL);
3678        if (pcidev) {
3679                dev->model = SONYPI_DEVICE_TYPE1;
3680                dev->evport_offset = SONYPI_TYPE1_OFFSET;
3681                dev->event_types = type1_events;
3682                goto out;
3683        }
3684
3685        pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3686                        PCI_DEVICE_ID_INTEL_ICH6_1, NULL);
3687        if (pcidev) {
3688                dev->model = SONYPI_DEVICE_TYPE2;
3689                dev->evport_offset = SONYPI_TYPE2_OFFSET;
3690                dev->event_types = type2_events;
3691                goto out;
3692        }
3693
3694        pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3695                        PCI_DEVICE_ID_INTEL_ICH7_1, NULL);
3696        if (pcidev) {
3697                dev->model = SONYPI_DEVICE_TYPE3;
3698                dev->handle_irq = type3_handle_irq;
3699                dev->evport_offset = SONYPI_TYPE3_OFFSET;
3700                dev->event_types = type3_events;
3701                goto out;
3702        }
3703
3704        pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3705                        PCI_DEVICE_ID_INTEL_ICH8_4, NULL);
3706        if (pcidev) {
3707                dev->model = SONYPI_DEVICE_TYPE3;
3708                dev->handle_irq = type3_handle_irq;
3709                dev->evport_offset = SONYPI_TYPE3_OFFSET;
3710                dev->event_types = type3_events;
3711                goto out;
3712        }
3713
3714        pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
3715                        PCI_DEVICE_ID_INTEL_ICH9_1, NULL);
3716        if (pcidev) {
3717                dev->model = SONYPI_DEVICE_TYPE3;
3718                dev->handle_irq = type3_handle_irq;
3719                dev->evport_offset = SONYPI_TYPE3_OFFSET;
3720                dev->event_types = type3_events;
3721                goto out;
3722        }
3723
3724        /* default */
3725        dev->model = SONYPI_DEVICE_TYPE2;
3726        dev->evport_offset = SONYPI_TYPE2_OFFSET;
3727        dev->event_types = type2_events;
3728
3729out:
3730        pci_dev_put(pcidev);
3731
3732        pr_info("detected Type%d model\n",
3733                dev->model == SONYPI_DEVICE_TYPE1 ? 1 :
3734                dev->model == SONYPI_DEVICE_TYPE2 ? 2 : 3);
3735}
3736
3737/* camera tests and poweron/poweroff */
3738#define SONYPI_CAMERA_PICTURE           5
3739#define SONYPI_CAMERA_CONTROL           0x10
3740
3741#define SONYPI_CAMERA_BRIGHTNESS                0
3742#define SONYPI_CAMERA_CONTRAST                  1
3743#define SONYPI_CAMERA_HUE                       2
3744#define SONYPI_CAMERA_COLOR                     3
3745#define SONYPI_CAMERA_SHARPNESS                 4
3746
3747#define SONYPI_CAMERA_EXPOSURE_MASK             0xC
3748#define SONYPI_CAMERA_WHITE_BALANCE_MASK        0x3
3749#define SONYPI_CAMERA_PICTURE_MODE_MASK         0x30
3750#define SONYPI_CAMERA_MUTE_MASK                 0x40
3751
3752/* the rest don't need a loop until not 0xff */
3753#define SONYPI_CAMERA_AGC                       6
3754#define SONYPI_CAMERA_AGC_MASK                  0x30
3755#define SONYPI_CAMERA_SHUTTER_MASK              0x7
3756
3757#define SONYPI_CAMERA_SHUTDOWN_REQUEST          7
3758#define SONYPI_CAMERA_CONTROL                   0x10
3759
3760#define SONYPI_CAMERA_STATUS                    7
3761#define SONYPI_CAMERA_STATUS_READY              0x2
3762#define SONYPI_CAMERA_STATUS_POSITION           0x4
3763
3764#define SONYPI_DIRECTION_BACKWARDS              0x4
3765
3766#define SONYPI_CAMERA_REVISION                  8
3767#define SONYPI_CAMERA_ROMVERSION                9
3768
3769static int __sony_pic_camera_ready(void)
3770{
3771        u8 v;
3772
3773        v = sony_pic_call2(0x8f, SONYPI_CAMERA_STATUS);
3774        return (v != 0xff && (v & SONYPI_CAMERA_STATUS_READY));
3775}
3776
3777static int __sony_pic_camera_off(void)
3778{
3779        if (!camera) {
3780                pr_warn("camera control not enabled\n");
3781                return -ENODEV;
3782        }
3783
3784        wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE,
3785                                SONYPI_CAMERA_MUTE_MASK),
3786                        ITERATIONS_SHORT);
3787
3788        if (spic_dev.camera_power) {
3789                sony_pic_call2(0x91, 0);
3790                spic_dev.camera_power = 0;
3791        }
3792        return 0;
3793}
3794
3795static int __sony_pic_camera_on(void)
3796{
3797        int i, j, x;
3798
3799        if (!camera) {
3800                pr_warn("camera control not enabled\n");
3801                return -ENODEV;
3802        }
3803
3804        if (spic_dev.camera_power)
3805                return 0;
3806
3807        for (j = 5; j > 0; j--) {
3808
3809                for (x = 0; x < 100 && sony_pic_call2(0x91, 0x1); x++)
3810                        msleep(10);
3811                sony_pic_call1(0x93);
3812
3813                for (i = 400; i > 0; i--) {
3814                        if (__sony_pic_camera_ready())
3815                                break;
3816                        msleep(10);
3817                }
3818                if (i)
3819                        break;
3820        }
3821
3822        if (j == 0) {
3823                pr_warn("failed to power on camera\n");
3824                return -ENODEV;
3825        }
3826
3827        wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTROL,
3828                                0x5a),
3829                        ITERATIONS_SHORT);
3830
3831        spic_dev.camera_power = 1;
3832        return 0;
3833}
3834
3835/* External camera command (exported to the motion eye v4l driver) */
3836int sony_pic_camera_command(int command, u8 value)
3837{
3838        if (!camera)
3839                return -EIO;
3840
3841        mutex_lock(&spic_dev.lock);
3842
3843        switch (command) {
3844        case SONY_PIC_COMMAND_SETCAMERA:
3845                if (value)
3846                        __sony_pic_camera_on();
3847                else
3848                        __sony_pic_camera_off();
3849                break;
3850        case SONY_PIC_COMMAND_SETCAMERABRIGHTNESS:
3851                wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_BRIGHTNESS, value),
3852                                ITERATIONS_SHORT);
3853                break;
3854        case SONY_PIC_COMMAND_SETCAMERACONTRAST:
3855                wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTRAST, value),
3856                                ITERATIONS_SHORT);
3857                break;
3858        case SONY_PIC_COMMAND_SETCAMERAHUE:
3859                wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_HUE, value),
3860                                ITERATIONS_SHORT);
3861                break;
3862        case SONY_PIC_COMMAND_SETCAMERACOLOR:
3863                wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_COLOR, value),
3864                                ITERATIONS_SHORT);
3865                break;
3866        case SONY_PIC_COMMAND_SETCAMERASHARPNESS:
3867                wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_SHARPNESS, value),
3868                                ITERATIONS_SHORT);
3869                break;
3870        case SONY_PIC_COMMAND_SETCAMERAPICTURE:
3871                wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE, value),
3872                                ITERATIONS_SHORT);
3873                break;
3874        case SONY_PIC_COMMAND_SETCAMERAAGC:
3875                wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_AGC, value),
3876                                ITERATIONS_SHORT);
3877                break;
3878        default:
3879                pr_err("sony_pic_camera_command invalid: %d\n", command);
3880                break;
3881        }
3882        mutex_unlock(&spic_dev.lock);
3883        return 0;
3884}
3885EXPORT_SYMBOL(sony_pic_camera_command);
3886
3887/* gprs/edge modem (SZ460N and SZ210P), thanks to Joshua Wise */
3888static void __sony_pic_set_wwanpower(u8 state)
3889{
3890        state = !!state;
3891        if (spic_dev.wwan_power == state)
3892                return;
3893        sony_pic_call2(0xB0, state);
3894        sony_pic_call1(0x82);
3895        spic_dev.wwan_power = state;
3896}
3897
3898static ssize_t sony_pic_wwanpower_store(struct device *dev,
3899                struct device_attribute *attr,
3900                const char *buffer, size_t count)
3901{
3902        unsigned long value;
3903        if (count > 31)
3904                return -EINVAL;
3905
3906        if (kstrtoul(buffer, 10, &value))
3907                return -EINVAL;
3908
3909        mutex_lock(&spic_dev.lock);
3910        __sony_pic_set_wwanpower(value);
3911        mutex_unlock(&spic_dev.lock);
3912
3913        return count;
3914}
3915
3916static ssize_t sony_pic_wwanpower_show(struct device *dev,
3917                struct device_attribute *attr, char *buffer)
3918{
3919        ssize_t count;
3920        mutex_lock(&spic_dev.lock);
3921        count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.wwan_power);
3922        mutex_unlock(&spic_dev.lock);
3923        return count;
3924}
3925
3926/* bluetooth subsystem power state */
3927static void __sony_pic_set_bluetoothpower(u8 state)
3928{
3929        state = !!state;
3930        if (spic_dev.bluetooth_power == state)
3931                return;
3932        sony_pic_call2(0x96, state);
3933        sony_pic_call1(0x82);
3934        spic_dev.bluetooth_power = state;
3935}
3936
3937static ssize_t sony_pic_bluetoothpower_store(struct device *dev,
3938                struct device_attribute *attr,
3939                const char *buffer, size_t count)
3940{
3941        unsigned long value;
3942        if (count > 31)
3943                return -EINVAL;
3944
3945        if (kstrtoul(buffer, 10, &value))
3946                return -EINVAL;
3947
3948        mutex_lock(&spic_dev.lock);
3949        __sony_pic_set_bluetoothpower(value);
3950        mutex_unlock(&spic_dev.lock);
3951
3952        return count;
3953}
3954
3955static ssize_t sony_pic_bluetoothpower_show(struct device *dev,
3956                struct device_attribute *attr, char *buffer)
3957{
3958        ssize_t count = 0;
3959        mutex_lock(&spic_dev.lock);
3960        count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.bluetooth_power);
3961        mutex_unlock(&spic_dev.lock);
3962        return count;
3963}
3964
3965/* fan speed */
3966/* FAN0 information (reverse engineered from ACPI tables) */
3967#define SONY_PIC_FAN0_STATUS    0x93
3968static int sony_pic_set_fanspeed(unsigned long value)
3969{
3970        return ec_write(SONY_PIC_FAN0_STATUS, value);
3971}
3972
3973static int sony_pic_get_fanspeed(u8 *value)
3974{
3975        return ec_read(SONY_PIC_FAN0_STATUS, value);
3976}
3977
3978static ssize_t sony_pic_fanspeed_store(struct device *dev,
3979                struct device_attribute *attr,
3980                const char *buffer, size_t count)
3981{
3982        unsigned long value;
3983        if (count > 31)
3984                return -EINVAL;
3985
3986        if (kstrtoul(buffer, 10, &value))
3987                return -EINVAL;
3988
3989        if (sony_pic_set_fanspeed(value))
3990                return -EIO;
3991
3992        return count;
3993}
3994
3995static ssize_t sony_pic_fanspeed_show(struct device *dev,
3996                struct device_attribute *attr, char *buffer)
3997{
3998        u8 value = 0;
3999        if (sony_pic_get_fanspeed(&value))
4000                return -EIO;
4001
4002        return snprintf(buffer, PAGE_SIZE, "%d\n", value);
4003}
4004
4005#define SPIC_ATTR(_name, _mode)                                 \
4006struct device_attribute spic_attr_##_name = __ATTR(_name,       \
4007                _mode, sony_pic_## _name ##_show,               \
4008                sony_pic_## _name ##_store)
4009
4010static SPIC_ATTR(bluetoothpower, 0644);
4011static SPIC_ATTR(wwanpower, 0644);
4012static SPIC_ATTR(fanspeed, 0644);
4013
4014static struct attribute *spic_attributes[] = {
4015        &spic_attr_bluetoothpower.attr,
4016        &spic_attr_wwanpower.attr,
4017        &spic_attr_fanspeed.attr,
4018        NULL
4019};
4020
4021static const struct attribute_group spic_attribute_group = {
4022        .attrs = spic_attributes
4023};
4024
4025/******** SONYPI compatibility **********/
4026#ifdef CONFIG_SONYPI_COMPAT
4027
4028/* battery / brightness / temperature  addresses */
4029#define SONYPI_BAT_FLAGS        0x81
4030#define SONYPI_LCD_LIGHT        0x96
4031#define SONYPI_BAT1_PCTRM       0xa0
4032#define SONYPI_BAT1_LEFT        0xa2
4033#define SONYPI_BAT1_MAXRT       0xa4
4034#define SONYPI_BAT2_PCTRM       0xa8
4035#define SONYPI_BAT2_LEFT        0xaa
4036#define SONYPI_BAT2_MAXRT       0xac
4037#define SONYPI_BAT1_MAXTK       0xb0
4038#define SONYPI_BAT1_FULL        0xb2
4039#define SONYPI_BAT2_MAXTK       0xb8
4040#define SONYPI_BAT2_FULL        0xba
4041#define SONYPI_TEMP_STATUS      0xC1
4042
4043struct sonypi_compat_s {
4044        struct fasync_struct    *fifo_async;
4045        struct kfifo            fifo;
4046        spinlock_t              fifo_lock;
4047        wait_queue_head_t       fifo_proc_list;
4048        atomic_t                open_count;
4049};
4050static struct sonypi_compat_s sonypi_compat = {
4051        .open_count = ATOMIC_INIT(0),
4052};
4053
4054static int sonypi_misc_fasync(int fd, struct file *filp, int on)
4055{
4056        return fasync_helper(fd, filp, on, &sonypi_compat.fifo_async);
4057}
4058
4059static int sonypi_misc_release(struct inode *inode, struct file *file)
4060{
4061        atomic_dec(&sonypi_compat.open_count);
4062        return 0;
4063}
4064
4065static int sonypi_misc_open(struct inode *inode, struct file *file)
4066{
4067        /* Flush input queue on first open */
4068        unsigned long flags;
4069
4070        spin_lock_irqsave(&sonypi_compat.fifo_lock, flags);
4071
4072        if (atomic_inc_return(&sonypi_compat.open_count) == 1)
4073                kfifo_reset(&sonypi_compat.fifo);
4074
4075        spin_unlock_irqrestore(&sonypi_compat.fifo_lock, flags);
4076
4077        return 0;
4078}
4079
4080static ssize_t sonypi_misc_read(struct file *file, char __user *buf,
4081                                size_t count, loff_t *pos)
4082{
4083        ssize_t ret;
4084        unsigned char c;
4085
4086        if ((kfifo_len(&sonypi_compat.fifo) == 0) &&
4087            (file->f_flags & O_NONBLOCK))
4088                return -EAGAIN;
4089
4090        ret = wait_event_interruptible(sonypi_compat.fifo_proc_list,
4091                                       kfifo_len(&sonypi_compat.fifo) != 0);
4092        if (ret)
4093                return ret;
4094
4095        while (ret < count &&
4096               (kfifo_out_locked(&sonypi_compat.fifo, &c, sizeof(c),
4097                          &sonypi_compat.fifo_lock) == sizeof(c))) {
4098                if (put_user(c, buf++))
4099                        return -EFAULT;
4100                ret++;
4101        }
4102
4103        if (ret > 0) {
4104                struct inode *inode = file_inode(file);
4105                inode->i_atime = current_time(inode);
4106        }
4107
4108        return ret;
4109}
4110
4111static __poll_t sonypi_misc_poll(struct file *file, poll_table *wait)
4112{
4113        poll_wait(file, &sonypi_compat.fifo_proc_list, wait);
4114        if (kfifo_len(&sonypi_compat.fifo))
4115                return EPOLLIN | EPOLLRDNORM;
4116        return 0;
4117}
4118
4119static int ec_read16(u8 addr, u16 *value)
4120{
4121        u8 val_lb, val_hb;
4122        if (ec_read(addr, &val_lb))
4123                return -1;
4124        if (ec_read(addr + 1, &val_hb))
4125                return -1;
4126        *value = val_lb | (val_hb << 8);
4127        return 0;
4128}
4129
4130static long sonypi_misc_ioctl(struct file *fp, unsigned int cmd,
4131                                                        unsigned long arg)
4132{
4133        int ret = 0;
4134        void __user *argp = (void __user *)arg;
4135        u8 val8;
4136        u16 val16;
4137        int value;
4138
4139        mutex_lock(&spic_dev.lock);
4140        switch (cmd) {
4141        case SONYPI_IOCGBRT:
4142                if (sony_bl_props.dev == NULL) {
4143                        ret = -EIO;
4144                        break;
4145                }
4146                if (sony_nc_int_call(sony_nc_acpi_handle, "GBRT", NULL,
4147                                        &value)) {
4148                        ret = -EIO;
4149                        break;
4150                }
4151                val8 = ((value & 0xff) - 1) << 5;
4152                if (copy_to_user(argp, &val8, sizeof(val8)))
4153                                ret = -EFAULT;
4154                break;
4155        case SONYPI_IOCSBRT:
4156                if (sony_bl_props.dev == NULL) {
4157                        ret = -EIO;
4158                        break;
4159                }
4160                if (copy_from_user(&val8, argp, sizeof(val8))) {
4161                        ret = -EFAULT;
4162                        break;
4163                }
4164                value = (val8 >> 5) + 1;
4165                if (sony_nc_int_call(sony_nc_acpi_handle, "SBRT", &value,
4166                                        NULL)) {
4167                        ret = -EIO;
4168                        break;
4169                }
4170                /* sync the backlight device status */
4171                sony_bl_props.dev->props.brightness =
4172                    sony_backlight_get_brightness(sony_bl_props.dev);
4173                break;
4174        case SONYPI_IOCGBAT1CAP:
4175                if (ec_read16(SONYPI_BAT1_FULL, &val16)) {
4176                        ret = -EIO;
4177                        break;
4178                }
4179                if (copy_to_user(argp, &val16, sizeof(val16)))
4180                        ret = -EFAULT;
4181                break;
4182        case SONYPI_IOCGBAT1REM:
4183                if (ec_read16(SONYPI_BAT1_LEFT, &val16)) {
4184                        ret = -EIO;
4185                        break;
4186                }
4187                if (copy_to_user(argp, &val16, sizeof(val16)))
4188                        ret = -EFAULT;
4189                break;
4190        case SONYPI_IOCGBAT2CAP:
4191                if (ec_read16(SONYPI_BAT2_FULL, &val16)) {
4192                        ret = -EIO;
4193                        break;
4194                }
4195                if (copy_to_user(argp, &val16, sizeof(val16)))
4196                        ret = -EFAULT;
4197                break;
4198        case SONYPI_IOCGBAT2REM:
4199                if (ec_read16(SONYPI_BAT2_LEFT, &val16)) {
4200                        ret = -EIO;
4201                        break;
4202                }
4203                if (copy_to_user(argp, &val16, sizeof(val16)))
4204                        ret = -EFAULT;
4205                break;
4206        case SONYPI_IOCGBATFLAGS:
4207                if (ec_read(SONYPI_BAT_FLAGS, &val8)) {
4208                        ret = -EIO;
4209                        break;
4210                }
4211                val8 &= 0x07;
4212                if (copy_to_user(argp, &val8, sizeof(val8)))
4213                        ret = -EFAULT;
4214                break;
4215        case SONYPI_IOCGBLUE:
4216                val8 = spic_dev.bluetooth_power;
4217                if (copy_to_user(argp, &val8, sizeof(val8)))
4218                        ret = -EFAULT;
4219                break;
4220        case SONYPI_IOCSBLUE:
4221                if (copy_from_user(&val8, argp, sizeof(val8))) {
4222                        ret = -EFAULT;
4223                        break;
4224                }
4225                __sony_pic_set_bluetoothpower(val8);
4226                break;
4227        /* FAN Controls */
4228        case SONYPI_IOCGFAN:
4229                if (sony_pic_get_fanspeed(&val8)) {
4230                        ret = -EIO;
4231                        break;
4232                }
4233                if (copy_to_user(argp, &val8, sizeof(val8)))
4234                        ret = -EFAULT;
4235                break;
4236        case SONYPI_IOCSFAN:
4237                if (copy_from_user(&val8, argp, sizeof(val8))) {
4238                        ret = -EFAULT;
4239                        break;
4240                }
4241                if (sony_pic_set_fanspeed(val8))
4242                        ret = -EIO;
4243                break;
4244        /* GET Temperature (useful under APM) */
4245        case SONYPI_IOCGTEMP:
4246                if (ec_read(SONYPI_TEMP_STATUS, &val8)) {
4247                        ret = -EIO;
4248                        break;
4249                }
4250                if (copy_to_user(argp, &val8, sizeof(val8)))
4251                        ret = -EFAULT;
4252                break;
4253        default:
4254                ret = -EINVAL;
4255        }
4256        mutex_unlock(&spic_dev.lock);
4257        return ret;
4258}
4259
4260static const struct file_operations sonypi_misc_fops = {
4261        .owner          = THIS_MODULE,
4262        .read           = sonypi_misc_read,
4263        .poll           = sonypi_misc_poll,
4264        .open           = sonypi_misc_open,
4265        .release        = sonypi_misc_release,
4266        .fasync         = sonypi_misc_fasync,
4267        .unlocked_ioctl = sonypi_misc_ioctl,
4268        .llseek         = noop_llseek,
4269};
4270
4271static struct miscdevice sonypi_misc_device = {
4272        .minor          = MISC_DYNAMIC_MINOR,
4273        .name           = "sonypi",
4274        .fops           = &sonypi_misc_fops,
4275};
4276
4277static void sonypi_compat_report_event(u8 event)
4278{
4279        kfifo_in_locked(&sonypi_compat.fifo, (unsigned char *)&event,
4280                        sizeof(event), &sonypi_compat.fifo_lock);
4281        kill_fasync(&sonypi_compat.fifo_async, SIGIO, POLL_IN);
4282        wake_up_interruptible(&sonypi_compat.fifo_proc_list);
4283}
4284
4285static int sonypi_compat_init(void)
4286{
4287        int error;
4288
4289        spin_lock_init(&sonypi_compat.fifo_lock);
4290        error =
4291         kfifo_alloc(&sonypi_compat.fifo, SONY_LAPTOP_BUF_SIZE, GFP_KERNEL);
4292        if (error) {
4293                pr_err("kfifo_alloc failed\n");
4294                return error;
4295        }
4296
4297        init_waitqueue_head(&sonypi_compat.fifo_proc_list);
4298
4299        if (minor != -1)
4300                sonypi_misc_device.minor = minor;
4301        error = misc_register(&sonypi_misc_device);
4302        if (error) {
4303                pr_err("misc_register failed\n");
4304                goto err_free_kfifo;
4305        }
4306        if (minor == -1)
4307                pr_info("device allocated minor is %d\n",
4308                        sonypi_misc_device.minor);
4309
4310        return 0;
4311
4312err_free_kfifo:
4313        kfifo_free(&sonypi_compat.fifo);
4314        return error;
4315}
4316
4317static void sonypi_compat_exit(void)
4318{
4319        misc_deregister(&sonypi_misc_device);
4320        kfifo_free(&sonypi_compat.fifo);
4321}
4322#else
4323static int sonypi_compat_init(void) { return 0; }
4324static void sonypi_compat_exit(void) { }
4325static void sonypi_compat_report_event(u8 event) { }
4326#endif /* CONFIG_SONYPI_COMPAT */
4327
4328/*
4329 * ACPI callbacks
4330 */
4331static acpi_status
4332sony_pic_read_possible_resource(struct acpi_resource *resource, void *context)
4333{
4334        u32 i;
4335        struct sony_pic_dev *dev = (struct sony_pic_dev *)context;
4336
4337        switch (resource->type) {
4338        case ACPI_RESOURCE_TYPE_START_DEPENDENT:
4339                {
4340                        /* start IO enumeration */
4341                        struct sony_pic_ioport *ioport = kzalloc(sizeof(*ioport), GFP_KERNEL);
4342                        if (!ioport)
4343                                return AE_ERROR;
4344
4345                        list_add(&ioport->list, &dev->ioports);
4346                        return AE_OK;
4347                }
4348
4349        case ACPI_RESOURCE_TYPE_END_DEPENDENT:
4350                /* end IO enumeration */
4351                return AE_OK;
4352
4353        case ACPI_RESOURCE_TYPE_IRQ:
4354                {
4355                        struct acpi_resource_irq *p = &resource->data.irq;
4356                        struct sony_pic_irq *interrupt = NULL;
4357                        if (!p || !p->interrupt_count) {
4358                                /*
4359                                 * IRQ descriptors may have no IRQ# bits set,
4360                                 * particularly those those w/ _STA disabled
4361                                 */
4362                                dprintk("Blank IRQ resource\n");
4363                                return AE_OK;
4364                        }
4365                        for (i = 0; i < p->interrupt_count; i++) {
4366                                if (!p->interrupts[i]) {
4367                                        pr_warn("Invalid IRQ %d\n",
4368                                                p->interrupts[i]);
4369                                        continue;
4370                                }
4371                                interrupt = kzalloc(sizeof(*interrupt),
4372                                                GFP_KERNEL);
4373                                if (!interrupt)
4374                                        return AE_ERROR;
4375
4376                                list_add(&interrupt->list, &dev->interrupts);
4377                                interrupt->irq.triggering = p->triggering;
4378                                interrupt->irq.polarity = p->polarity;
4379                                interrupt->irq.shareable = p->shareable;
4380                                interrupt->irq.interrupt_count = 1;
4381                                interrupt->irq.interrupts[0] = p->interrupts[i];
4382                        }
4383                        return AE_OK;
4384                }
4385        case ACPI_RESOURCE_TYPE_IO:
4386                {
4387                        struct acpi_resource_io *io = &resource->data.io;
4388                        struct sony_pic_ioport *ioport =
4389                                list_first_entry(&dev->ioports, struct sony_pic_ioport, list);
4390                        if (!io) {
4391                                dprintk("Blank IO resource\n");
4392                                return AE_OK;
4393                        }
4394
4395                        if (!ioport->io1.minimum) {
4396                                memcpy(&ioport->io1, io, sizeof(*io));
4397                                dprintk("IO1 at 0x%.4x (0x%.2x)\n", ioport->io1.minimum,
4398                                                ioport->io1.address_length);
4399                        }
4400                        else if (!ioport->io2.minimum) {
4401                                memcpy(&ioport->io2, io, sizeof(*io));
4402                                dprintk("IO2 at 0x%.4x (0x%.2x)\n", ioport->io2.minimum,
4403                                                ioport->io2.address_length);
4404                        }
4405                        else {
4406                                pr_err("Unknown SPIC Type, more than 2 IO Ports\n");
4407                                return AE_ERROR;
4408                        }
4409                        return AE_OK;
4410                }
4411
4412        case ACPI_RESOURCE_TYPE_END_TAG:
4413                return AE_OK;
4414
4415        default:
4416                dprintk("Resource %d isn't an IRQ nor an IO port\n",
4417                        resource->type);
4418                return AE_CTRL_TERMINATE;
4419
4420        }
4421}
4422
4423static int sony_pic_possible_resources(struct acpi_device *device)
4424{
4425        int result = 0;
4426        acpi_status status = AE_OK;
4427
4428        if (!device)
4429                return -EINVAL;
4430
4431        /* get device status */
4432        /* see acpi_pci_link_get_current acpi_pci_link_get_possible */
4433        dprintk("Evaluating _STA\n");
4434        result = acpi_bus_get_status(device);
4435        if (result) {
4436                pr_warn("Unable to read status\n");
4437                goto end;
4438        }
4439
4440        if (!device->status.enabled)
4441                dprintk("Device disabled\n");
4442        else
4443                dprintk("Device enabled\n");
4444
4445        /*
4446         * Query and parse 'method'
4447         */
4448        dprintk("Evaluating %s\n", METHOD_NAME__PRS);
4449        status = acpi_walk_resources(device->handle, METHOD_NAME__PRS,
4450                        sony_pic_read_possible_resource, &spic_dev);
4451        if (ACPI_FAILURE(status)) {
4452                pr_warn("Failure evaluating %s\n", METHOD_NAME__PRS);
4453                result = -ENODEV;
4454        }
4455end:
4456        return result;
4457}
4458
4459/*
4460 *  Disable the spic device by calling its _DIS method
4461 */
4462static int sony_pic_disable(struct acpi_device *device)
4463{
4464        acpi_status ret = acpi_evaluate_object(device->handle, "_DIS", NULL,
4465                                               NULL);
4466
4467        if (ACPI_FAILURE(ret) && ret != AE_NOT_FOUND)
4468                return -ENXIO;
4469
4470        dprintk("Device disabled\n");
4471        return 0;
4472}
4473
4474
4475/*
4476 *  Based on drivers/acpi/pci_link.c:acpi_pci_link_set
4477 *
4478 *  Call _SRS to set current resources
4479 */
4480static int sony_pic_enable(struct acpi_device *device,
4481                struct sony_pic_ioport *ioport, struct sony_pic_irq *irq)
4482{
4483        acpi_status status;
4484        int result = 0;
4485        /* Type 1 resource layout is:
4486         *    IO
4487         *    IO
4488         *    IRQNoFlags
4489         *    End
4490         *
4491         * Type 2 and 3 resource layout is:
4492         *    IO
4493         *    IRQNoFlags
4494         *    End
4495         */
4496        struct {
4497                struct acpi_resource res1;
4498                struct acpi_resource res2;
4499                struct acpi_resource res3;
4500                struct acpi_resource res4;
4501        } *resource;
4502        struct acpi_buffer buffer = { 0, NULL };
4503
4504        if (!ioport || !irq)
4505                return -EINVAL;
4506
4507        /* init acpi_buffer */
4508        resource = kzalloc(sizeof(*resource) + 1, GFP_KERNEL);
4509        if (!resource)
4510                return -ENOMEM;
4511
4512        buffer.length = sizeof(*resource) + 1;
4513        buffer.pointer = resource;
4514
4515        /* setup Type 1 resources */
4516        if (spic_dev.model == SONYPI_DEVICE_TYPE1) {
4517
4518                /* setup io resources */
4519                resource->res1.type = ACPI_RESOURCE_TYPE_IO;
4520                resource->res1.length = sizeof(struct acpi_resource);
4521                memcpy(&resource->res1.data.io, &ioport->io1,
4522                                sizeof(struct acpi_resource_io));
4523
4524                resource->res2.type = ACPI_RESOURCE_TYPE_IO;
4525                resource->res2.length = sizeof(struct acpi_resource);
4526                memcpy(&resource->res2.data.io, &ioport->io2,
4527                                sizeof(struct acpi_resource_io));
4528
4529                /* setup irq resource */
4530                resource->res3.type = ACPI_RESOURCE_TYPE_IRQ;
4531                resource->res3.length = sizeof(struct acpi_resource);
4532                memcpy(&resource->res3.data.irq, &irq->irq,
4533                                sizeof(struct acpi_resource_irq));
4534                /* we requested a shared irq */
4535                resource->res3.data.irq.shareable = ACPI_SHARED;
4536
4537                resource->res4.type = ACPI_RESOURCE_TYPE_END_TAG;
4538                resource->res4.length = sizeof(struct acpi_resource);
4539        }
4540        /* setup Type 2/3 resources */
4541        else {
4542                /* setup io resource */
4543                resource->res1.type = ACPI_RESOURCE_TYPE_IO;
4544                resource->res1.length = sizeof(struct acpi_resource);
4545                memcpy(&resource->res1.data.io, &ioport->io1,
4546                                sizeof(struct acpi_resource_io));
4547
4548                /* setup irq resource */
4549                resource->res2.type = ACPI_RESOURCE_TYPE_IRQ;
4550                resource->res2.length = sizeof(struct acpi_resource);
4551                memcpy(&resource->res2.data.irq, &irq->irq,
4552                                sizeof(struct acpi_resource_irq));
4553                /* we requested a shared irq */
4554                resource->res2.data.irq.shareable = ACPI_SHARED;
4555
4556                resource->res3.type = ACPI_RESOURCE_TYPE_END_TAG;
4557                resource->res3.length = sizeof(struct acpi_resource);
4558        }
4559
4560        /* Attempt to set the resource */
4561        dprintk("Evaluating _SRS\n");
4562        status = acpi_set_current_resources(device->handle, &buffer);
4563
4564        /* check for total failure */
4565        if (ACPI_FAILURE(status)) {
4566                pr_err("Error evaluating _SRS\n");
4567                result = -ENODEV;
4568                goto end;
4569        }
4570
4571        /* Necessary device initializations calls (from sonypi) */
4572        sony_pic_call1(0x82);
4573        sony_pic_call2(0x81, 0xff);
4574        sony_pic_call1(compat ? 0x92 : 0x82);
4575
4576end:
4577        kfree(resource);
4578        return result;
4579}
4580
4581/*****************
4582 *
4583 * ISR: some event is available
4584 *
4585 *****************/
4586static irqreturn_t sony_pic_irq(int irq, void *dev_id)
4587{
4588        int i, j;
4589        u8 ev = 0;
4590        u8 data_mask = 0;
4591        u8 device_event = 0;
4592
4593        struct sony_pic_dev *dev = (struct sony_pic_dev *) dev_id;
4594
4595        ev = inb_p(dev->cur_ioport->io1.minimum);
4596        if (dev->cur_ioport->io2.minimum)
4597                data_mask = inb_p(dev->cur_ioport->io2.minimum);
4598        else
4599                data_mask = inb_p(dev->cur_ioport->io1.minimum +
4600                                dev->evport_offset);
4601
4602        dprintk("event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
4603                        ev, data_mask, dev->cur_ioport->io1.minimum,
4604                        dev->evport_offset);
4605
4606        if (ev == 0x00 || ev == 0xff)
4607                return IRQ_HANDLED;
4608
4609        for (i = 0; dev->event_types[i].mask; i++) {
4610
4611                if ((data_mask & dev->event_types[i].data) !=
4612                    dev->event_types[i].data)
4613                        continue;
4614
4615                if (!(mask & dev->event_types[i].mask))
4616                        continue;
4617
4618                for (j = 0; dev->event_types[i].events[j].event; j++) {
4619                        if (ev == dev->event_types[i].events[j].data) {
4620                                device_event =
4621                                        dev->event_types[i].events[j].event;
4622                                /* some events may require ignoring */
4623                                if (!device_event)
4624                                        return IRQ_HANDLED;
4625                                goto found;
4626                        }
4627                }
4628        }
4629        /* Still not able to decode the event try to pass
4630         * it over to the minidriver
4631         */
4632        if (dev->handle_irq && dev->handle_irq(data_mask, ev) == 0)
4633                return IRQ_HANDLED;
4634
4635        dprintk("unknown event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
4636                        ev, data_mask, dev->cur_ioport->io1.minimum,
4637                        dev->evport_offset);
4638        return IRQ_HANDLED;
4639
4640found:
4641        sony_laptop_report_input_event(device_event);
4642        sonypi_compat_report_event(device_event);
4643        return IRQ_HANDLED;
4644}
4645
4646/*****************
4647 *
4648 *  ACPI driver
4649 *
4650 *****************/
4651static int sony_pic_remove(struct acpi_device *device)
4652{
4653        struct sony_pic_ioport *io, *tmp_io;
4654        struct sony_pic_irq *irq, *tmp_irq;
4655
4656        if (sony_pic_disable(device)) {
4657                pr_err("Couldn't disable device\n");
4658                return -ENXIO;
4659        }
4660
4661        free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
4662        release_region(spic_dev.cur_ioport->io1.minimum,
4663                        spic_dev.cur_ioport->io1.address_length);
4664        if (spic_dev.cur_ioport->io2.minimum)
4665                release_region(spic_dev.cur_ioport->io2.minimum,
4666                                spic_dev.cur_ioport->io2.address_length);
4667
4668        sonypi_compat_exit();
4669
4670        sony_laptop_remove_input();
4671
4672        /* pf attrs */
4673        sysfs_remove_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
4674        sony_pf_remove();
4675
4676        list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
4677                list_del(&io->list);
4678                kfree(io);
4679        }
4680        list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
4681                list_del(&irq->list);
4682                kfree(irq);
4683        }
4684        spic_dev.cur_ioport = NULL;
4685        spic_dev.cur_irq = NULL;
4686
4687        dprintk(SONY_PIC_DRIVER_NAME " removed.\n");
4688        return 0;
4689}
4690
4691static int sony_pic_add(struct acpi_device *device)
4692{
4693        int result;
4694        struct sony_pic_ioport *io, *tmp_io;
4695        struct sony_pic_irq *irq, *tmp_irq;
4696
4697        spic_dev.acpi_dev = device;
4698        strcpy(acpi_device_class(device), "sony/hotkey");
4699        sony_pic_detect_device_type(&spic_dev);
4700        mutex_init(&spic_dev.lock);
4701
4702        /* read _PRS resources */
4703        result = sony_pic_possible_resources(device);
4704        if (result) {
4705                pr_err("Unable to read possible resources\n");
4706                goto err_free_resources;
4707        }
4708
4709        /* setup input devices and helper fifo */
4710        result = sony_laptop_setup_input(device);
4711        if (result) {
4712                pr_err("Unable to create input devices\n");
4713                goto err_free_resources;
4714        }
4715
4716        result = sonypi_compat_init();
4717        if (result)
4718                goto err_remove_input;
4719
4720        /* request io port */
4721        list_for_each_entry_reverse(io, &spic_dev.ioports, list) {
4722                if (request_region(io->io1.minimum, io->io1.address_length,
4723                                        "Sony Programmable I/O Device")) {
4724                        dprintk("I/O port1: 0x%.4x (0x%.4x) + 0x%.2x\n",
4725                                        io->io1.minimum, io->io1.maximum,
4726                                        io->io1.address_length);
4727                        /* Type 1 have 2 ioports */
4728                        if (io->io2.minimum) {
4729                                if (request_region(io->io2.minimum,
4730                                                io->io2.address_length,
4731                                                "Sony Programmable I/O Device")) {
4732                                        dprintk("I/O port2: 0x%.4x (0x%.4x) + 0x%.2x\n",
4733                                                        io->io2.minimum, io->io2.maximum,
4734                                                        io->io2.address_length);
4735                                        spic_dev.cur_ioport = io;
4736                                        break;
4737                                }
4738                                else {
4739                                        dprintk("Unable to get I/O port2: "
4740                                                        "0x%.4x (0x%.4x) + 0x%.2x\n",
4741                                                        io->io2.minimum, io->io2.maximum,
4742                                                        io->io2.address_length);
4743                                        release_region(io->io1.minimum,
4744                                                        io->io1.address_length);
4745                                }
4746                        }
4747                        else {
4748                                spic_dev.cur_ioport = io;
4749                                break;
4750                        }
4751                }
4752        }
4753        if (!spic_dev.cur_ioport) {
4754                pr_err("Failed to request_region\n");
4755                result = -ENODEV;
4756                goto err_remove_compat;
4757        }
4758
4759        /* request IRQ */
4760        list_for_each_entry_reverse(irq, &spic_dev.interrupts, list) {
4761                if (!request_irq(irq->irq.interrupts[0], sony_pic_irq,
4762                                        0, "sony-laptop", &spic_dev)) {
4763                        dprintk("IRQ: %d - triggering: %d - "
4764                                        "polarity: %d - shr: %d\n",
4765                                        irq->irq.interrupts[0],
4766                                        irq->irq.triggering,
4767                                        irq->irq.polarity,
4768                                        irq->irq.shareable);
4769                        spic_dev.cur_irq = irq;
4770                        break;
4771                }
4772        }
4773        if (!spic_dev.cur_irq) {
4774                pr_err("Failed to request_irq\n");
4775                result = -ENODEV;
4776                goto err_release_region;
4777        }
4778
4779        /* set resource status _SRS */
4780        result = sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
4781        if (result) {
4782                pr_err("Couldn't enable device\n");
4783                goto err_free_irq;
4784        }
4785
4786        spic_dev.bluetooth_power = -1;
4787        /* create device attributes */
4788        result = sony_pf_add();
4789        if (result)
4790                goto err_disable_device;
4791
4792        result = sysfs_create_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
4793        if (result)
4794                goto err_remove_pf;
4795
4796        pr_info("SPIC setup done.\n");
4797        return 0;
4798
4799err_remove_pf:
4800        sony_pf_remove();
4801
4802err_disable_device:
4803        sony_pic_disable(device);
4804
4805err_free_irq:
4806        free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
4807
4808err_release_region:
4809        release_region(spic_dev.cur_ioport->io1.minimum,
4810                        spic_dev.cur_ioport->io1.address_length);
4811        if (spic_dev.cur_ioport->io2.minimum)
4812                release_region(spic_dev.cur_ioport->io2.minimum,
4813                                spic_dev.cur_ioport->io2.address_length);
4814
4815err_remove_compat:
4816        sonypi_compat_exit();
4817
4818err_remove_input:
4819        sony_laptop_remove_input();
4820
4821err_free_resources:
4822        list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
4823                list_del(&io->list);
4824                kfree(io);
4825        }
4826        list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
4827                list_del(&irq->list);
4828                kfree(irq);
4829        }
4830        spic_dev.cur_ioport = NULL;
4831        spic_dev.cur_irq = NULL;
4832
4833        return result;
4834}
4835
4836#ifdef CONFIG_PM_SLEEP
4837static int sony_pic_suspend(struct device *dev)
4838{
4839        if (sony_pic_disable(to_acpi_device(dev)))
4840                return -ENXIO;
4841        return 0;
4842}
4843
4844static int sony_pic_resume(struct device *dev)
4845{
4846        sony_pic_enable(to_acpi_device(dev),
4847                        spic_dev.cur_ioport, spic_dev.cur_irq);
4848        return 0;
4849}
4850#endif
4851
4852static SIMPLE_DEV_PM_OPS(sony_pic_pm, sony_pic_suspend, sony_pic_resume);
4853
4854static const struct acpi_device_id sony_pic_device_ids[] = {
4855        {SONY_PIC_HID, 0},
4856        {"", 0},
4857};
4858
4859static struct acpi_driver sony_pic_driver = {
4860        .name = SONY_PIC_DRIVER_NAME,
4861        .class = SONY_PIC_CLASS,
4862        .ids = sony_pic_device_ids,
4863        .owner = THIS_MODULE,
4864        .ops = {
4865                .add = sony_pic_add,
4866                .remove = sony_pic_remove,
4867                },
4868        .drv.pm = &sony_pic_pm,
4869};
4870
4871static const struct dmi_system_id sonypi_dmi_table[] __initconst = {
4872        {
4873                .ident = "Sony Vaio",
4874                .matches = {
4875                        DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
4876                        DMI_MATCH(DMI_PRODUCT_NAME, "PCG-"),
4877                },
4878        },
4879        {
4880                .ident = "Sony Vaio",
4881                .matches = {
4882                        DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
4883                        DMI_MATCH(DMI_PRODUCT_NAME, "VGN-"),
4884                },
4885        },
4886        { }
4887};
4888
4889static int __init sony_laptop_init(void)
4890{
4891        int result;
4892
4893        if (!no_spic && dmi_check_system(sonypi_dmi_table)) {
4894                result = acpi_bus_register_driver(&sony_pic_driver);
4895                if (result) {
4896                        pr_err("Unable to register SPIC driver\n");
4897                        goto out;
4898                }
4899                spic_drv_registered = 1;
4900        }
4901
4902        result = acpi_bus_register_driver(&sony_nc_driver);
4903        if (result) {
4904                pr_err("Unable to register SNC driver\n");
4905                goto out_unregister_pic;
4906        }
4907
4908        return 0;
4909
4910out_unregister_pic:
4911        if (spic_drv_registered)
4912                acpi_bus_unregister_driver(&sony_pic_driver);
4913out:
4914        return result;
4915}
4916
4917static void __exit sony_laptop_exit(void)
4918{
4919        acpi_bus_unregister_driver(&sony_nc_driver);
4920        if (spic_drv_registered)
4921                acpi_bus_unregister_driver(&sony_pic_driver);
4922}
4923
4924module_init(sony_laptop_init);
4925module_exit(sony_laptop_exit);
4926