drivers/platform/x86/sony-laptop.c

   1 /*
   2  * ACPI Sony Notebook Control Driver (SNC and SPIC)
   3  *
   4  * Copyright (C) 2004-2005 Stelian Pop <stelian@popies.net>
   5  * Copyright (C) 2007-2009 Mattia Dongili <malattia@linux.it>
   6  *
   7  * Parts of this driver inspired from asus_acpi.c and ibm_acpi.c
   8  * which are copyrighted by their respective authors.
   9  *
  10  * The SNY6001 driver part is based on the sonypi driver which includes
  11  * material from:
  12  *
  13  * Copyright (C) 2001-2005 Stelian Pop <stelian@popies.net>
  14  *
  15  * Copyright (C) 2005 Narayanan R S <nars@kadamba.org>
  16  *
  17  * Copyright (C) 2001-2002 Alcôve <www.alcove.com>
  18  *
  19  * Copyright (C) 2001 Michael Ashley <m.ashley@unsw.edu.au>
  20  *
  21  * Copyright (C) 2001 Junichi Morita <jun1m@mars.dti.ne.jp>
  22  *
  23  * Copyright (C) 2000 Takaya Kinjo <t-kinjo@tc4.so-net.ne.jp>
  24  *
  25  * Copyright (C) 2000 Andrew Tridgell <tridge@valinux.com>
  26  *
  27  * Earlier work by Werner Almesberger, Paul `Rusty' Russell and Paul Mackerras.
  28  *
  29  * This program is free software; you can redistribute it and/or modify
  30  * it under the terms of the GNU General Public License as published by
  31  * the Free Software Foundation; either version 2 of the License, or
  32  * (at your option) any later version.
  33  *
  34  * This program is distributed in the hope that it will be useful,
  35  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  36  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  37  * GNU General Public License for more details.
  38  *
  39  * You should have received a copy of the GNU General Public License
  40  * along with this program; if not, write to the Free Software
  41  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  42  *
  43  */
  44
  45 #include <linux/kernel.h>
  46 #include <linux/module.h>
  47 #include <linux/moduleparam.h>
  48 #include <linux/init.h>
  49 #include <linux/types.h>
  50 #include <linux/backlight.h>
  51 #include <linux/platform_device.h>
  52 #include <linux/err.h>
  53 #include <linux/dmi.h>
  54 #include <linux/pci.h>
  55 #include <linux/interrupt.h>
  56 #include <linux/delay.h>
  57 #include <linux/input.h>
  58 #include <linux/kfifo.h>
  59 #include <linux/workqueue.h>
  60 #include <linux/acpi.h>
  61 #include <linux/slab.h>
  62 #include <acpi/acpi_drivers.h>
  63 #include <acpi/acpi_bus.h>
  64 #include <asm/uaccess.h>
  65 #include <linux/sonypi.h>
  66 #include <linux/sony-laptop.h>
  67 #include <linux/rfkill.h>
  68 #ifdef CONFIG_SONYPI_COMPAT
  69 #include <linux/poll.h>
  70 #include <linux/miscdevice.h>
  71 #endif
  72
  73 #define DRV_PFX                 "sony-laptop: "
  74 #define dprintk(msg...)         do {    \
  75         if (debug)                      \
  76                 pr_warn(DRV_PFX msg);   \
  77 } while (0)
  78
  79 #define SONY_LAPTOP_DRIVER_VERSION      "0.6"
  80
  81 #define SONY_NC_CLASS           "sony-nc"
  82 #define SONY_NC_HID             "SNY5001"
  83 #define SONY_NC_DRIVER_NAME     "Sony Notebook Control Driver"
  84
  85 #define SONY_PIC_CLASS          "sony-pic"
  86 #define SONY_PIC_HID            "SNY6001"
  87 #define SONY_PIC_DRIVER_NAME    "Sony Programmable IO Control Driver"
  88
  89 MODULE_AUTHOR("Stelian Pop, Mattia Dongili");
  90 MODULE_DESCRIPTION("Sony laptop extras driver (SPIC and SNC ACPI device)");
  91 MODULE_LICENSE("GPL");
  92 MODULE_VERSION(SONY_LAPTOP_DRIVER_VERSION);
  93
  94 static int debug;
  95 module_param(debug, int, 0);
  96 MODULE_PARM_DESC(debug, "set this to 1 (and RTFM) if you want to help "
  97                  "the development of this driver");
  98
  99 static int no_spic;             /* = 0 */
 100 module_param(no_spic, int, 0444);
 101 MODULE_PARM_DESC(no_spic,
 102                  "set this if you don't want to enable the SPIC device");
 103
 104 static int compat;              /* = 0 */
 105 module_param(compat, int, 0444);
 106 MODULE_PARM_DESC(compat,
 107                  "set this if you want to enable backward compatibility mode");
 108
 109 static unsigned long mask = 0xffffffff;
 110 module_param(mask, ulong, 0644);
 111 MODULE_PARM_DESC(mask,
 112                  "set this to the mask of event you want to enable (see doc)");
 113
 114 static int camera;              /* = 0 */
 115 module_param(camera, int, 0444);
 116 MODULE_PARM_DESC(camera,
 117                  "set this to 1 to enable Motion Eye camera controls "
 118                  "(only use it if you have a C1VE or C1VN model)");
 119
 120 #ifdef CONFIG_SONYPI_COMPAT
 121 static int minor = -1;
 122 module_param(minor, int, 0);
 123 MODULE_PARM_DESC(minor,
 124                  "minor number of the misc device for the SPIC compatibility code, "
 125                  "default is -1 (automatic)");
 126 #endif
 127
 128 static int kbd_backlight;       /* = 1 */
 129 module_param(kbd_backlight, int, 0444);
 130 MODULE_PARM_DESC(kbd_backlight,
 131                  "set this to 0 to disable keyboard backlight, "
 132                  "1 to enable it (default: 0)");
 133
 134 static int kbd_backlight_timeout;       /* = 0 */
 135 module_param(kbd_backlight_timeout, int, 0444);
 136 MODULE_PARM_DESC(kbd_backlight_timeout,
 137                  "set this to 0 to set the default 10 seconds timeout, "
 138                  "1 for 30 seconds, 2 for 60 seconds and 3 to disable timeout "
 139                  "(default: 0)");
 140
 141 enum sony_nc_rfkill {
 142         SONY_WIFI,
 143         SONY_BLUETOOTH,
 144         SONY_WWAN,
 145         SONY_WIMAX,
 146         N_SONY_RFKILL,
 147 };
 148
 149 static int sony_rfkill_handle;
 150 static struct rfkill *sony_rfkill_devices[N_SONY_RFKILL];
 151 static int sony_rfkill_address[N_SONY_RFKILL] = {0x300, 0x500, 0x700, 0x900};
 152 static void sony_nc_rfkill_update(void);
 153
 154 /*********** Input Devices ***********/
 155
 156 #define SONY_LAPTOP_BUF_SIZE    128
 157 struct sony_laptop_input_s {
 158         atomic_t                users;
 159         struct input_dev        *jog_dev;
 160         struct input_dev        *key_dev;
 161         struct kfifo            fifo;
 162         spinlock_t              fifo_lock;
 163         struct timer_list       release_key_timer;
 164 };
 165
 166 static struct sony_laptop_input_s sony_laptop_input = {
 167         .users = ATOMIC_INIT(0),
 168 };
 169
 170 struct sony_laptop_keypress {
 171         struct input_dev *dev;
 172         int key;
 173 };
 174
 175 /* Correspondance table between sonypi events
 176  * and input layer indexes in the keymap
 177  */
 178 static int sony_laptop_input_index[] = {
 179         -1,     /*  0 no event */
 180         -1,     /*  1 SONYPI_EVENT_JOGDIAL_DOWN */
 181         -1,     /*  2 SONYPI_EVENT_JOGDIAL_UP */
 182         -1,     /*  3 SONYPI_EVENT_JOGDIAL_DOWN_PRESSED */
 183         -1,     /*  4 SONYPI_EVENT_JOGDIAL_UP_PRESSED */
 184         -1,     /*  5 SONYPI_EVENT_JOGDIAL_PRESSED */
 185         -1,     /*  6 SONYPI_EVENT_JOGDIAL_RELEASED */
 186          0,     /*  7 SONYPI_EVENT_CAPTURE_PRESSED */
 187          1,     /*  8 SONYPI_EVENT_CAPTURE_RELEASED */
 188          2,     /*  9 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
 189          3,     /* 10 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
 190          4,     /* 11 SONYPI_EVENT_FNKEY_ESC */
 191          5,     /* 12 SONYPI_EVENT_FNKEY_F1 */
 192          6,     /* 13 SONYPI_EVENT_FNKEY_F2 */
 193          7,     /* 14 SONYPI_EVENT_FNKEY_F3 */
 194          8,     /* 15 SONYPI_EVENT_FNKEY_F4 */
 195          9,     /* 16 SONYPI_EVENT_FNKEY_F5 */
 196         10,     /* 17 SONYPI_EVENT_FNKEY_F6 */
 197         11,     /* 18 SONYPI_EVENT_FNKEY_F7 */
 198         12,     /* 19 SONYPI_EVENT_FNKEY_F8 */
 199         13,     /* 20 SONYPI_EVENT_FNKEY_F9 */
 200         14,     /* 21 SONYPI_EVENT_FNKEY_F10 */
 201         15,     /* 22 SONYPI_EVENT_FNKEY_F11 */
 202         16,     /* 23 SONYPI_EVENT_FNKEY_F12 */
 203         17,     /* 24 SONYPI_EVENT_FNKEY_1 */
 204         18,     /* 25 SONYPI_EVENT_FNKEY_2 */
 205         19,     /* 26 SONYPI_EVENT_FNKEY_D */
 206         20,     /* 27 SONYPI_EVENT_FNKEY_E */
 207         21,     /* 28 SONYPI_EVENT_FNKEY_F */
 208         22,     /* 29 SONYPI_EVENT_FNKEY_S */
 209         23,     /* 30 SONYPI_EVENT_FNKEY_B */
 210         24,     /* 31 SONYPI_EVENT_BLUETOOTH_PRESSED */
 211         25,     /* 32 SONYPI_EVENT_PKEY_P1 */
 212         26,     /* 33 SONYPI_EVENT_PKEY_P2 */
 213         27,     /* 34 SONYPI_EVENT_PKEY_P3 */
 214         28,     /* 35 SONYPI_EVENT_BACK_PRESSED */
 215         -1,     /* 36 SONYPI_EVENT_LID_CLOSED */
 216         -1,     /* 37 SONYPI_EVENT_LID_OPENED */
 217         29,     /* 38 SONYPI_EVENT_BLUETOOTH_ON */
 218         30,     /* 39 SONYPI_EVENT_BLUETOOTH_OFF */
 219         31,     /* 40 SONYPI_EVENT_HELP_PRESSED */
 220         32,     /* 41 SONYPI_EVENT_FNKEY_ONLY */
 221         33,     /* 42 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
 222         34,     /* 43 SONYPI_EVENT_JOGDIAL_FAST_UP */
 223         35,     /* 44 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
 224         36,     /* 45 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
 225         37,     /* 46 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
 226         38,     /* 47 SONYPI_EVENT_JOGDIAL_VFAST_UP */
 227         39,     /* 48 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
 228         40,     /* 49 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
 229         41,     /* 50 SONYPI_EVENT_ZOOM_PRESSED */
 230         42,     /* 51 SONYPI_EVENT_THUMBPHRASE_PRESSED */
 231         43,     /* 52 SONYPI_EVENT_MEYE_FACE */
 232         44,     /* 53 SONYPI_EVENT_MEYE_OPPOSITE */
 233         45,     /* 54 SONYPI_EVENT_MEMORYSTICK_INSERT */
 234         46,     /* 55 SONYPI_EVENT_MEMORYSTICK_EJECT */
 235         -1,     /* 56 SONYPI_EVENT_ANYBUTTON_RELEASED */
 236         -1,     /* 57 SONYPI_EVENT_BATTERY_INSERT */
 237         -1,     /* 58 SONYPI_EVENT_BATTERY_REMOVE */
 238         -1,     /* 59 SONYPI_EVENT_FNKEY_RELEASED */
 239         47,     /* 60 SONYPI_EVENT_WIRELESS_ON */
 240         48,     /* 61 SONYPI_EVENT_WIRELESS_OFF */
 241         49,     /* 62 SONYPI_EVENT_ZOOM_IN_PRESSED */
 242         50,     /* 63 SONYPI_EVENT_ZOOM_OUT_PRESSED */
 243         51,     /* 64 SONYPI_EVENT_CD_EJECT_PRESSED */
 244         52,     /* 65 SONYPI_EVENT_MODEKEY_PRESSED */
 245         53,     /* 66 SONYPI_EVENT_PKEY_P4 */
 246         54,     /* 67 SONYPI_EVENT_PKEY_P5 */
 247         55,     /* 68 SONYPI_EVENT_SETTINGKEY_PRESSED */
 248         56,     /* 69 SONYPI_EVENT_VOLUME_INC_PRESSED */
 249         57,     /* 70 SONYPI_EVENT_VOLUME_DEC_PRESSED */
 250         -1,     /* 71 SONYPI_EVENT_BRIGHTNESS_PRESSED */
 251         58,     /* 72 SONYPI_EVENT_MEDIA_PRESSED */
 252         59,     /* 72 SONYPI_EVENT_VENDOR_PRESSED */
 253 };
 254
 255 static int sony_laptop_input_keycode_map[] = {
 256         KEY_CAMERA,     /*  0 SONYPI_EVENT_CAPTURE_PRESSED */
 257         KEY_RESERVED,   /*  1 SONYPI_EVENT_CAPTURE_RELEASED */
 258         KEY_RESERVED,   /*  2 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
 259         KEY_RESERVED,   /*  3 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
 260         KEY_FN_ESC,     /*  4 SONYPI_EVENT_FNKEY_ESC */
 261         KEY_FN_F1,      /*  5 SONYPI_EVENT_FNKEY_F1 */
 262         KEY_FN_F2,      /*  6 SONYPI_EVENT_FNKEY_F2 */
 263         KEY_FN_F3,      /*  7 SONYPI_EVENT_FNKEY_F3 */
 264         KEY_FN_F4,      /*  8 SONYPI_EVENT_FNKEY_F4 */
 265         KEY_FN_F5,      /*  9 SONYPI_EVENT_FNKEY_F5 */
 266         KEY_FN_F6,      /* 10 SONYPI_EVENT_FNKEY_F6 */
 267         KEY_FN_F7,      /* 11 SONYPI_EVENT_FNKEY_F7 */
 268         KEY_FN_F8,      /* 12 SONYPI_EVENT_FNKEY_F8 */
 269         KEY_FN_F9,      /* 13 SONYPI_EVENT_FNKEY_F9 */
 270         KEY_FN_F10,     /* 14 SONYPI_EVENT_FNKEY_F10 */
 271         KEY_FN_F11,     /* 15 SONYPI_EVENT_FNKEY_F11 */
 272         KEY_FN_F12,     /* 16 SONYPI_EVENT_FNKEY_F12 */
 273         KEY_FN_F1,      /* 17 SONYPI_EVENT_FNKEY_1 */
 274         KEY_FN_F2,      /* 18 SONYPI_EVENT_FNKEY_2 */
 275         KEY_FN_D,       /* 19 SONYPI_EVENT_FNKEY_D */
 276         KEY_FN_E,       /* 20 SONYPI_EVENT_FNKEY_E */
 277         KEY_FN_F,       /* 21 SONYPI_EVENT_FNKEY_F */
 278         KEY_FN_S,       /* 22 SONYPI_EVENT_FNKEY_S */
 279         KEY_FN_B,       /* 23 SONYPI_EVENT_FNKEY_B */
 280         KEY_BLUETOOTH,  /* 24 SONYPI_EVENT_BLUETOOTH_PRESSED */
 281         KEY_PROG1,      /* 25 SONYPI_EVENT_PKEY_P1 */
 282         KEY_PROG2,      /* 26 SONYPI_EVENT_PKEY_P2 */
 283         KEY_PROG3,      /* 27 SONYPI_EVENT_PKEY_P3 */
 284         KEY_BACK,       /* 28 SONYPI_EVENT_BACK_PRESSED */
 285         KEY_BLUETOOTH,  /* 29 SONYPI_EVENT_BLUETOOTH_ON */
 286         KEY_BLUETOOTH,  /* 30 SONYPI_EVENT_BLUETOOTH_OFF */
 287         KEY_HELP,       /* 31 SONYPI_EVENT_HELP_PRESSED */
 288         KEY_FN,         /* 32 SONYPI_EVENT_FNKEY_ONLY */
 289         KEY_RESERVED,   /* 33 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
 290         KEY_RESERVED,   /* 34 SONYPI_EVENT_JOGDIAL_FAST_UP */
 291         KEY_RESERVED,   /* 35 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
 292         KEY_RESERVED,   /* 36 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
 293         KEY_RESERVED,   /* 37 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
 294         KEY_RESERVED,   /* 38 SONYPI_EVENT_JOGDIAL_VFAST_UP */
 295         KEY_RESERVED,   /* 39 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
 296         KEY_RESERVED,   /* 40 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
 297         KEY_ZOOM,       /* 41 SONYPI_EVENT_ZOOM_PRESSED */
 298         BTN_THUMB,      /* 42 SONYPI_EVENT_THUMBPHRASE_PRESSED */
 299         KEY_RESERVED,   /* 43 SONYPI_EVENT_MEYE_FACE */
 300         KEY_RESERVED,   /* 44 SONYPI_EVENT_MEYE_OPPOSITE */
 301         KEY_RESERVED,   /* 45 SONYPI_EVENT_MEMORYSTICK_INSERT */
 302         KEY_RESERVED,   /* 46 SONYPI_EVENT_MEMORYSTICK_EJECT */
 303         KEY_WLAN,       /* 47 SONYPI_EVENT_WIRELESS_ON */
 304         KEY_WLAN,       /* 48 SONYPI_EVENT_WIRELESS_OFF */
 305         KEY_ZOOMIN,     /* 49 SONYPI_EVENT_ZOOM_IN_PRESSED */
 306         KEY_ZOOMOUT,    /* 50 SONYPI_EVENT_ZOOM_OUT_PRESSED */
 307         KEY_EJECTCD,    /* 51 SONYPI_EVENT_CD_EJECT_PRESSED */
 308         KEY_F13,        /* 52 SONYPI_EVENT_MODEKEY_PRESSED */
 309         KEY_PROG4,      /* 53 SONYPI_EVENT_PKEY_P4 */
 310         KEY_F14,        /* 54 SONYPI_EVENT_PKEY_P5 */
 311         KEY_F15,        /* 55 SONYPI_EVENT_SETTINGKEY_PRESSED */
 312         KEY_VOLUMEUP,   /* 56 SONYPI_EVENT_VOLUME_INC_PRESSED */
 313         KEY_VOLUMEDOWN, /* 57 SONYPI_EVENT_VOLUME_DEC_PRESSED */
 314         KEY_MEDIA,      /* 58 SONYPI_EVENT_MEDIA_PRESSED */
 315         KEY_VENDOR,     /* 59 SONYPI_EVENT_VENDOR_PRESSED */
 316 };
 317
 318 /* release buttons after a short delay if pressed */
 319 static void do_sony_laptop_release_key(unsigned long unused)
 320 {
 321         struct sony_laptop_keypress kp;
 322         unsigned long flags;
 323
 324         spin_lock_irqsave(&sony_laptop_input.fifo_lock, flags);
 325
 326         if (kfifo_out(&sony_laptop_input.fifo,
 327                       (unsigned char *)&kp, sizeof(kp)) == sizeof(kp)) {
 328                 input_report_key(kp.dev, kp.key, 0);
 329                 input_sync(kp.dev);
 330         }
 331
 332         /* If there is something in the fifo schedule next release. */
 333         if (kfifo_len(&sony_laptop_input.fifo) != 0)
 334                 mod_timer(&sony_laptop_input.release_key_timer,
 335                           jiffies + msecs_to_jiffies(10));
 336
 337         spin_unlock_irqrestore(&sony_laptop_input.fifo_lock, flags);
 338 }
 339
 340 /* forward event to the input subsystem */
 341 static void sony_laptop_report_input_event(u8 event)
 342 {
 343         struct input_dev *jog_dev = sony_laptop_input.jog_dev;
 344         struct input_dev *key_dev = sony_laptop_input.key_dev;
 345         struct sony_laptop_keypress kp = { NULL };
 346
 347         if (event == SONYPI_EVENT_FNKEY_RELEASED ||
 348                         event == SONYPI_EVENT_ANYBUTTON_RELEASED) {
 349                 /* Nothing, not all VAIOs generate this event */
 350                 return;
 351         }
 352
 353         /* report events */
 354         switch (event) {
 355         /* jog_dev events */
 356         case SONYPI_EVENT_JOGDIAL_UP:
 357         case SONYPI_EVENT_JOGDIAL_UP_PRESSED:
 358                 input_report_rel(jog_dev, REL_WHEEL, 1);
 359                 input_sync(jog_dev);
 360                 return;
 361
 362         case SONYPI_EVENT_JOGDIAL_DOWN:
 363         case SONYPI_EVENT_JOGDIAL_DOWN_PRESSED:
 364                 input_report_rel(jog_dev, REL_WHEEL, -1);
 365                 input_sync(jog_dev);
 366                 return;
 367
 368         /* key_dev events */
 369         case SONYPI_EVENT_JOGDIAL_PRESSED:
 370                 kp.key = BTN_MIDDLE;
 371                 kp.dev = jog_dev;
 372                 break;
 373
 374         default:
 375                 if (event >= ARRAY_SIZE(sony_laptop_input_index)) {
 376                         dprintk("sony_laptop_report_input_event, event not known: %d\n", event);
 377                         break;
 378                 }
 379                 if (sony_laptop_input_index[event] != -1) {
 380                         kp.key = sony_laptop_input_keycode_map[sony_laptop_input_index[event]];
 381                         if (kp.key != KEY_UNKNOWN)
 382                                 kp.dev = key_dev;
 383                 }
 384                 break;
 385         }
 386
 387         if (kp.dev) {
 388                 input_report_key(kp.dev, kp.key, 1);
 389                 /* we emit the scancode so we can always remap the key */
 390                 input_event(kp.dev, EV_MSC, MSC_SCAN, event);
 391                 input_sync(kp.dev);
 392
 393                 /* schedule key release */
 394                 kfifo_in_locked(&sony_laptop_input.fifo,
 395                                 (unsigned char *)&kp, sizeof(kp),
 396                                 &sony_laptop_input.fifo_lock);
 397                 mod_timer(&sony_laptop_input.release_key_timer,
 398                           jiffies + msecs_to_jiffies(10));
 399         } else
 400                 dprintk("unknown input event %.2x\n", event);
 401 }
 402
 403 static int sony_laptop_setup_input(struct acpi_device *acpi_device)
 404 {
 405         struct input_dev *jog_dev;
 406         struct input_dev *key_dev;
 407         int i;
 408         int error;
 409
 410         /* don't run again if already initialized */
 411         if (atomic_add_return(1, &sony_laptop_input.users) > 1)
 412                 return 0;
 413
 414         /* kfifo */
 415         spin_lock_init(&sony_laptop_input.fifo_lock);
 416         error = kfifo_alloc(&sony_laptop_input.fifo,
 417                             SONY_LAPTOP_BUF_SIZE, GFP_KERNEL);
 418         if (error) {
 419                 pr_err(DRV_PFX "kfifo_alloc failed\n");
 420                 goto err_dec_users;
 421         }
 422
 423         setup_timer(&sony_laptop_input.release_key_timer,
 424                     do_sony_laptop_release_key, 0);
 425
 426         /* input keys */
 427         key_dev = input_allocate_device();
 428         if (!key_dev) {
 429                 error = -ENOMEM;
 430                 goto err_free_kfifo;
 431         }
 432
 433         key_dev->name = "Sony Vaio Keys";
 434         key_dev->id.bustype = BUS_ISA;
 435         key_dev->id.vendor = PCI_VENDOR_ID_SONY;
 436         key_dev->dev.parent = &acpi_device->dev;
 437
 438         /* Initialize the Input Drivers: special keys */
 439         input_set_capability(key_dev, EV_MSC, MSC_SCAN);
 440
 441         __set_bit(EV_KEY, key_dev->evbit);
 442         key_dev->keycodesize = sizeof(sony_laptop_input_keycode_map[0]);
 443         key_dev->keycodemax = ARRAY_SIZE(sony_laptop_input_keycode_map);
 444         key_dev->keycode = &sony_laptop_input_keycode_map;
 445         for (i = 0; i < ARRAY_SIZE(sony_laptop_input_keycode_map); i++)
 446                 __set_bit(sony_laptop_input_keycode_map[i], key_dev->keybit);
 447         __clear_bit(KEY_RESERVED, key_dev->keybit);
 448
 449         error = input_register_device(key_dev);
 450         if (error)
 451                 goto err_free_keydev;
 452
 453         sony_laptop_input.key_dev = key_dev;
 454
 455         /* jogdial */
 456         jog_dev = input_allocate_device();
 457         if (!jog_dev) {
 458                 error = -ENOMEM;
 459                 goto err_unregister_keydev;
 460         }
 461
 462         jog_dev->name = "Sony Vaio Jogdial";
 463         jog_dev->id.bustype = BUS_ISA;
 464         jog_dev->id.vendor = PCI_VENDOR_ID_SONY;
 465         key_dev->dev.parent = &acpi_device->dev;
 466
 467         input_set_capability(jog_dev, EV_KEY, BTN_MIDDLE);
 468         input_set_capability(jog_dev, EV_REL, REL_WHEEL);
 469
 470         error = input_register_device(jog_dev);
 471         if (error)
 472                 goto err_free_jogdev;
 473
 474         sony_laptop_input.jog_dev = jog_dev;
 475
 476         return 0;
 477
 478 err_free_jogdev:
 479         input_free_device(jog_dev);
 480
 481 err_unregister_keydev:
 482         input_unregister_device(key_dev);
 483         /* to avoid kref underflow below at input_free_device */
 484         key_dev = NULL;
 485
 486 err_free_keydev:
 487         input_free_device(key_dev);
 488
 489 err_free_kfifo:
 490         kfifo_free(&sony_laptop_input.fifo);
 491
 492 err_dec_users:
 493         atomic_dec(&sony_laptop_input.users);
 494         return error;
 495 }
 496
 497 static void sony_laptop_remove_input(void)
 498 {
 499         struct sony_laptop_keypress kp = { NULL };
 500
 501         /* Cleanup only after the last user has gone */
 502         if (!atomic_dec_and_test(&sony_laptop_input.users))
 503                 return;
 504
 505         del_timer_sync(&sony_laptop_input.release_key_timer);
 506
 507         /*
 508          * Generate key-up events for remaining keys. Note that we don't
 509          * need locking since nobody is adding new events to the kfifo.
 510          */
 511         while (kfifo_out(&sony_laptop_input.fifo,
 512                          (unsigned char *)&kp, sizeof(kp)) == sizeof(kp)) {
 513                 input_report_key(kp.dev, kp.key, 0);
 514                 input_sync(kp.dev);
 515         }
 516
 517         /* destroy input devs */
 518         input_unregister_device(sony_laptop_input.key_dev);
 519         sony_laptop_input.key_dev = NULL;
 520
 521         if (sony_laptop_input.jog_dev) {
 522                 input_unregister_device(sony_laptop_input.jog_dev);
 523                 sony_laptop_input.jog_dev = NULL;
 524         }
 525
 526         kfifo_free(&sony_laptop_input.fifo);
 527 }
 528
 529 /*********** Platform Device ***********/
 530
 531 static atomic_t sony_pf_users = ATOMIC_INIT(0);
 532 static struct platform_driver sony_pf_driver = {
 533         .driver = {
 534                    .name = "sony-laptop",
 535                    .owner = THIS_MODULE,
 536                    }
 537 };
 538 static struct platform_device *sony_pf_device;
 539
 540 static int sony_pf_add(void)
 541 {
 542         int ret = 0;
 543
 544         /* don't run again if already initialized */
 545         if (atomic_add_return(1, &sony_pf_users) > 1)
 546                 return 0;
 547
 548         ret = platform_driver_register(&sony_pf_driver);
 549         if (ret)
 550                 goto out;
 551
 552         sony_pf_device = platform_device_alloc("sony-laptop", -1);
 553         if (!sony_pf_device) {
 554                 ret = -ENOMEM;
 555                 goto out_platform_registered;
 556         }
 557
 558         ret = platform_device_add(sony_pf_device);
 559         if (ret)
 560                 goto out_platform_alloced;
 561
 562         return 0;
 563
 564       out_platform_alloced:
 565         platform_device_put(sony_pf_device);
 566         sony_pf_device = NULL;
 567       out_platform_registered:
 568         platform_driver_unregister(&sony_pf_driver);
 569       out:
 570         atomic_dec(&sony_pf_users);
 571         return ret;
 572 }
 573
 574 static void sony_pf_remove(void)
 575 {
 576         /* deregister only after the last user has gone */
 577         if (!atomic_dec_and_test(&sony_pf_users))
 578                 return;
 579
 580         platform_device_unregister(sony_pf_device);
 581         platform_driver_unregister(&sony_pf_driver);
 582 }
 583
 584 /*********** SNC (SNY5001) Device ***********/
 585
 586 /* the device uses 1-based values, while the backlight subsystem uses
 587    0-based values */
 588 #define SONY_MAX_BRIGHTNESS     8
 589
 590 #define SNC_VALIDATE_IN         0
 591 #define SNC_VALIDATE_OUT        1
 592
 593 static ssize_t sony_nc_sysfs_show(struct device *, struct device_attribute *,
 594                               char *);
 595 static ssize_t sony_nc_sysfs_store(struct device *, struct device_attribute *,
 596                                const char *, size_t);
 597 static int boolean_validate(const int, const int);
 598 static int brightness_default_validate(const int, const int);
 599
 600 struct sony_nc_value {
 601         char *name;             /* name of the entry */
 602         char **acpiget;         /* names of the ACPI get function */
 603         char **acpiset;         /* names of the ACPI set function */
 604         int (*validate)(const int, const int);  /* input/output validation */
 605         int value;              /* current setting */
 606         int valid;              /* Has ever been set */
 607         int debug;              /* active only in debug mode ? */
 608         struct device_attribute devattr;        /* sysfs atribute */
 609 };
 610
 611 #define SNC_HANDLE_NAMES(_name, _values...) \
 612         static char *snc_##_name[] = { _values, NULL }
 613
 614 #define SNC_HANDLE(_name, _getters, _setters, _validate, _debug) \
 615         { \
 616                 .name           = __stringify(_name), \
 617                 .acpiget        = _getters, \
 618                 .acpiset        = _setters, \
 619                 .validate       = _validate, \
 620                 .debug          = _debug, \
 621                 .devattr        = __ATTR(_name, 0, sony_nc_sysfs_show, sony_nc_sysfs_store), \
 622         }
 623
 624 #define SNC_HANDLE_NULL { .name = NULL }
 625
 626 SNC_HANDLE_NAMES(fnkey_get, "GHKE");
 627
 628 SNC_HANDLE_NAMES(brightness_def_get, "GPBR");
 629 SNC_HANDLE_NAMES(brightness_def_set, "SPBR");
 630
 631 SNC_HANDLE_NAMES(cdpower_get, "GCDP");
 632 SNC_HANDLE_NAMES(cdpower_set, "SCDP", "CDPW");
 633
 634 SNC_HANDLE_NAMES(audiopower_get, "GAZP");
 635 SNC_HANDLE_NAMES(audiopower_set, "AZPW");
 636
 637 SNC_HANDLE_NAMES(lanpower_get, "GLNP");
 638 SNC_HANDLE_NAMES(lanpower_set, "LNPW");
 639
 640 SNC_HANDLE_NAMES(lidstate_get, "GLID");
 641
 642 SNC_HANDLE_NAMES(indicatorlamp_get, "GILS");
 643 SNC_HANDLE_NAMES(indicatorlamp_set, "SILS");
 644
 645 SNC_HANDLE_NAMES(gainbass_get, "GMGB");
 646 SNC_HANDLE_NAMES(gainbass_set, "CMGB");
 647
 648 SNC_HANDLE_NAMES(PID_get, "GPID");
 649
 650 SNC_HANDLE_NAMES(CTR_get, "GCTR");
 651 SNC_HANDLE_NAMES(CTR_set, "SCTR");
 652
 653 SNC_HANDLE_NAMES(PCR_get, "GPCR");
 654 SNC_HANDLE_NAMES(PCR_set, "SPCR");
 655
 656 SNC_HANDLE_NAMES(CMI_get, "GCMI");
 657 SNC_HANDLE_NAMES(CMI_set, "SCMI");
 658
 659 static struct sony_nc_value sony_nc_values[] = {
 660         SNC_HANDLE(brightness_default, snc_brightness_def_get,
 661                         snc_brightness_def_set, brightness_default_validate, 0),
 662         SNC_HANDLE(fnkey, snc_fnkey_get, NULL, NULL, 0),
 663         SNC_HANDLE(cdpower, snc_cdpower_get, snc_cdpower_set, boolean_validate, 0),
 664         SNC_HANDLE(audiopower, snc_audiopower_get, snc_audiopower_set,
 665                         boolean_validate, 0),
 666         SNC_HANDLE(lanpower, snc_lanpower_get, snc_lanpower_set,
 667                         boolean_validate, 1),
 668         SNC_HANDLE(lidstate, snc_lidstate_get, NULL,
 669                         boolean_validate, 0),
 670         SNC_HANDLE(indicatorlamp, snc_indicatorlamp_get, snc_indicatorlamp_set,
 671                         boolean_validate, 0),
 672         SNC_HANDLE(gainbass, snc_gainbass_get, snc_gainbass_set,
 673                         boolean_validate, 0),
 674         /* unknown methods */
 675         SNC_HANDLE(PID, snc_PID_get, NULL, NULL, 1),
 676         SNC_HANDLE(CTR, snc_CTR_get, snc_CTR_set, NULL, 1),
 677         SNC_HANDLE(PCR, snc_PCR_get, snc_PCR_set, NULL, 1),
 678         SNC_HANDLE(CMI, snc_CMI_get, snc_CMI_set, NULL, 1),
 679         SNC_HANDLE_NULL
 680 };
 681
 682 static acpi_handle sony_nc_acpi_handle;
 683 static struct acpi_device *sony_nc_acpi_device = NULL;
 684
 685 /*
 686  * acpi_evaluate_object wrappers
 687  */
 688 static int acpi_callgetfunc(acpi_handle handle, char *name, int *result)
 689 {
 690         struct acpi_buffer output;
 691         union acpi_object out_obj;
 692         acpi_status status;
 693
 694         output.length = sizeof(out_obj);
 695         output.pointer = &out_obj;
 696
 697         status = acpi_evaluate_object(handle, name, NULL, &output);
 698         if ((status == AE_OK) && (out_obj.type == ACPI_TYPE_INTEGER)) {
 699                 *result = out_obj.integer.value;
 700                 return 0;
 701         }
 702
 703         pr_warn(DRV_PFX "acpi_callreadfunc failed\n");
 704
 705         return -1;
 706 }
 707
 708 static int acpi_callsetfunc(acpi_handle handle, char *name, int value,
 709                             int *result)
 710 {
 711         struct acpi_object_list params;
 712         union acpi_object in_obj;
 713         struct acpi_buffer output;
 714         union acpi_object out_obj;
 715         acpi_status status;
 716
 717         params.count = 1;
 718         params.pointer = &in_obj;
 719         in_obj.type = ACPI_TYPE_INTEGER;
 720         in_obj.integer.value = value;
 721
 722         output.length = sizeof(out_obj);
 723         output.pointer = &out_obj;
 724
 725         status = acpi_evaluate_object(handle, name, &params, &output);
 726         if (status == AE_OK) {
 727                 if (result != NULL) {
 728                         if (out_obj.type != ACPI_TYPE_INTEGER) {
 729                                 pr_warn(DRV_PFX "acpi_evaluate_object bad "
 730                                        "return type\n");
 731                                 return -1;
 732                         }
 733                         *result = out_obj.integer.value;
 734                 }
 735                 return 0;
 736         }
 737
 738         pr_warn(DRV_PFX "acpi_evaluate_object failed\n");
 739
 740         return -1;
 741 }
 742
 743 struct sony_nc_handles {
 744         u16 cap[0x10];
 745         struct device_attribute devattr;
 746 };
 747
 748 static struct sony_nc_handles *handles;
 749
 750 static ssize_t sony_nc_handles_show(struct device *dev,
 751                 struct device_attribute *attr, char *buffer)
 752 {
 753         ssize_t len = 0;
 754         int i;
 755
 756         for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
 757                 len += snprintf(buffer + len, PAGE_SIZE - len, "0x%.4x ",
 758                                 handles->cap[i]);
 759         }
 760         len += snprintf(buffer + len, PAGE_SIZE - len, "\n");
 761
 762         return len;
 763 }
 764
 765 static int sony_nc_handles_setup(struct platform_device *pd)
 766 {
 767         int i;
 768         int result;
 769
 770         handles = kzalloc(sizeof(*handles), GFP_KERNEL);
 771         if (!handles)
 772                 return -ENOMEM;
 773
 774         sysfs_attr_init(&handles->devattr.attr);
 775         handles->devattr.attr.name = "handles";
 776         handles->devattr.attr.mode = S_IRUGO;
 777         handles->devattr.show = sony_nc_handles_show;
 778
 779         for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
 780                 if (!acpi_callsetfunc(sony_nc_acpi_handle,
 781                                         "SN00", i + 0x20, &result)) {
 782                         dprintk("caching handle 0x%.4x (offset: 0x%.2x)\n",
 783                                         result, i);
 784                         handles->cap[i] = result;
 785                 }
 786         }
 787
 788         /* allow reading capabilities via sysfs */
 789         if (device_create_file(&pd->dev, &handles->devattr)) {
 790                 kfree(handles);
 791                 handles = NULL;
 792                 return -1;
 793         }
 794
 795         return 0;
 796 }
 797
 798 static int sony_nc_handles_cleanup(struct platform_device *pd)
 799 {
 800         if (handles) {
 801                 device_remove_file(&pd->dev, &handles->devattr);
 802                 kfree(handles);
 803                 handles = NULL;
 804         }
 805         return 0;
 806 }
 807
 808 static int sony_find_snc_handle(int handle)
 809 {
 810         int i;
 811         for (i = 0; i < 0x10; i++) {
 812                 if (handles->cap[i] == handle) {
 813                         dprintk("found handle 0x%.4x (offset: 0x%.2x)\n",
 814                                         handle, i);
 815                         return i;
 816                 }
 817         }
 818         dprintk("handle 0x%.4x not found\n", handle);
 819         return -1;
 820 }
 821
 822 static int sony_call_snc_handle(int handle, int argument, int *result)
 823 {
 824         int ret = 0;
 825         int offset = sony_find_snc_handle(handle);
 826
 827         if (offset < 0)
 828                 return -1;
 829
 830         ret = acpi_callsetfunc(sony_nc_acpi_handle, "SN07", offset | argument,
 831                         result);
 832         dprintk("called SN07 with 0x%.4x (result: 0x%.4x)\n", offset | argument,
 833                         *result);
 834         return ret;
 835 }
 836
 837 /*
 838  * sony_nc_values input/output validate functions
 839  */
 840
 841 /* brightness_default_validate:
 842  *
 843  * manipulate input output values to keep consistency with the
 844  * backlight framework for which brightness values are 0-based.
 845  */
 846 static int brightness_default_validate(const int direction, const int value)
 847 {
 848         switch (direction) {
 849                 case SNC_VALIDATE_OUT:
 850                         return value - 1;
 851                 case SNC_VALIDATE_IN:
 852                         if (value >= 0 && value < SONY_MAX_BRIGHTNESS)
 853                                 return value + 1;
 854         }
 855         return -EINVAL;
 856 }
 857
 858 /* boolean_validate:
 859  *
 860  * on input validate boolean values 0/1, on output just pass the
 861  * received value.
 862  */
 863 static int boolean_validate(const int direction, const int value)
 864 {
 865         if (direction == SNC_VALIDATE_IN) {
 866                 if (value != 0 && value != 1)
 867                         return -EINVAL;
 868         }
 869         return value;
 870 }
 871
 872 /*
 873  * Sysfs show/store common to all sony_nc_values
 874  */
 875 static ssize_t sony_nc_sysfs_show(struct device *dev, struct device_attribute *attr,
 876                               char *buffer)
 877 {
 878         int value;
 879         struct sony_nc_value *item =
 880             container_of(attr, struct sony_nc_value, devattr);
 881
 882         if (!*item->acpiget)
 883                 return -EIO;
 884
 885         if (acpi_callgetfunc(sony_nc_acpi_handle, *item->acpiget, &value) < 0)
 886                 return -EIO;
 887
 888         if (item->validate)
 889                 value = item->validate(SNC_VALIDATE_OUT, value);
 890
 891         return snprintf(buffer, PAGE_SIZE, "%d\n", value);
 892 }
 893
 894 static ssize_t sony_nc_sysfs_store(struct device *dev,
 895                                struct device_attribute *attr,
 896                                const char *buffer, size_t count)
 897 {
 898         int value;
 899         struct sony_nc_value *item =
 900             container_of(attr, struct sony_nc_value, devattr);
 901
 902         if (!item->acpiset)
 903                 return -EIO;
 904
 905         if (count > 31)
 906                 return -EINVAL;
 907
 908         value = simple_strtoul(buffer, NULL, 10);
 909
 910         if (item->validate)
 911                 value = item->validate(SNC_VALIDATE_IN, value);
 912
 913         if (value < 0)
 914                 return value;
 915
 916         if (acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset, value, NULL) < 0)
 917                 return -EIO;
 918         item->value = value;
 919         item->valid = 1;
 920         return count;
 921 }
 922
 923
 924 /*
 925  * Backlight device
 926  */
 927 static int sony_backlight_update_status(struct backlight_device *bd)
 928 {
 929         return acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
 930                                 bd->props.brightness + 1, NULL);
 931 }
 932
 933 static int sony_backlight_get_brightness(struct backlight_device *bd)
 934 {
 935         int value;
 936
 937         if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value))
 938                 return 0;
 939         /* brightness levels are 1-based, while backlight ones are 0-based */
 940         return value - 1;
 941 }
 942
 943 static int sony_nc_get_brightness_ng(struct backlight_device *bd)
 944 {
 945         int result;
 946         int *handle = (int *)bl_get_data(bd);
 947
 948         sony_call_snc_handle(*handle, 0x0200, &result);
 949
 950         return result & 0xff;
 951 }
 952
 953 static int sony_nc_update_status_ng(struct backlight_device *bd)
 954 {
 955         int value, result;
 956         int *handle = (int *)bl_get_data(bd);
 957
 958         value = bd->props.brightness;
 959         sony_call_snc_handle(*handle, 0x0100 | (value << 16), &result);
 960
 961         return sony_nc_get_brightness_ng(bd);
 962 }
 963
 964 static const struct backlight_ops sony_backlight_ops = {
 965         .options = BL_CORE_SUSPENDRESUME,
 966         .update_status = sony_backlight_update_status,
 967         .get_brightness = sony_backlight_get_brightness,
 968 };
 969 static const struct backlight_ops sony_backlight_ng_ops = {
 970         .options = BL_CORE_SUSPENDRESUME,
 971         .update_status = sony_nc_update_status_ng,
 972         .get_brightness = sony_nc_get_brightness_ng,
 973 };
 974 static int backlight_ng_handle;
 975 static struct backlight_device *sony_backlight_device;
 976
 977 /*
 978  * New SNC-only Vaios event mapping to driver known keys
 979  */
 980 struct sony_nc_event {
 981         u8      data;
 982         u8      event;
 983 };
 984
 985 static struct sony_nc_event sony_100_events[] = {
 986         { 0x90, SONYPI_EVENT_PKEY_P1 },
 987         { 0x10, SONYPI_EVENT_ANYBUTTON_RELEASED },
 988         { 0x91, SONYPI_EVENT_PKEY_P2 },
 989         { 0x11, SONYPI_EVENT_ANYBUTTON_RELEASED },
 990         { 0x81, SONYPI_EVENT_FNKEY_F1 },
 991         { 0x01, SONYPI_EVENT_FNKEY_RELEASED },
 992         { 0x82, SONYPI_EVENT_FNKEY_F2 },
 993         { 0x02, SONYPI_EVENT_FNKEY_RELEASED },
 994         { 0x83, SONYPI_EVENT_FNKEY_F3 },
 995         { 0x03, SONYPI_EVENT_FNKEY_RELEASED },
 996         { 0x84, SONYPI_EVENT_FNKEY_F4 },
 997         { 0x04, SONYPI_EVENT_FNKEY_RELEASED },
 998         { 0x85, SONYPI_EVENT_FNKEY_F5 },
 999         { 0x05, SONYPI_EVENT_FNKEY_RELEASED },
1000         { 0x86, SONYPI_EVENT_FNKEY_F6 },
1001         { 0x06, SONYPI_EVENT_FNKEY_RELEASED },
1002         { 0x87, SONYPI_EVENT_FNKEY_F7 },
1003         { 0x07, SONYPI_EVENT_FNKEY_RELEASED },
1004         { 0x89, SONYPI_EVENT_FNKEY_F9 },
1005         { 0x09, SONYPI_EVENT_FNKEY_RELEASED },
1006         { 0x8A, SONYPI_EVENT_FNKEY_F10 },
1007         { 0x0A, SONYPI_EVENT_FNKEY_RELEASED },
1008         { 0x8C, SONYPI_EVENT_FNKEY_F12 },
1009         { 0x0C, SONYPI_EVENT_FNKEY_RELEASED },
1010         { 0x9d, SONYPI_EVENT_ZOOM_PRESSED },
1011         { 0x1d, SONYPI_EVENT_ANYBUTTON_RELEASED },
1012         { 0x9f, SONYPI_EVENT_CD_EJECT_PRESSED },
1013         { 0x1f, SONYPI_EVENT_ANYBUTTON_RELEASED },
1014         { 0xa1, SONYPI_EVENT_MEDIA_PRESSED },
1015         { 0x21, SONYPI_EVENT_ANYBUTTON_RELEASED },
1016         { 0xa4, SONYPI_EVENT_CD_EJECT_PRESSED },
1017         { 0x24, SONYPI_EVENT_ANYBUTTON_RELEASED },
1018         { 0xa5, SONYPI_EVENT_VENDOR_PRESSED },
1019         { 0x25, SONYPI_EVENT_ANYBUTTON_RELEASED },
1020         { 0xa6, SONYPI_EVENT_HELP_PRESSED },
1021         { 0x26, SONYPI_EVENT_ANYBUTTON_RELEASED },
1022         { 0, 0 },
1023 };
1024
1025 static struct sony_nc_event sony_127_events[] = {
1026         { 0x81, SONYPI_EVENT_MODEKEY_PRESSED },
1027         { 0x01, SONYPI_EVENT_ANYBUTTON_RELEASED },
1028         { 0x82, SONYPI_EVENT_PKEY_P1 },
1029         { 0x02, SONYPI_EVENT_ANYBUTTON_RELEASED },
1030         { 0x83, SONYPI_EVENT_PKEY_P2 },
1031         { 0x03, SONYPI_EVENT_ANYBUTTON_RELEASED },
1032         { 0x84, SONYPI_EVENT_PKEY_P3 },
1033         { 0x04, SONYPI_EVENT_ANYBUTTON_RELEASED },
1034         { 0x85, SONYPI_EVENT_PKEY_P4 },
1035         { 0x05, SONYPI_EVENT_ANYBUTTON_RELEASED },
1036         { 0x86, SONYPI_EVENT_PKEY_P5 },
1037         { 0x06, SONYPI_EVENT_ANYBUTTON_RELEASED },
1038         { 0x87, SONYPI_EVENT_SETTINGKEY_PRESSED },
1039         { 0x07, SONYPI_EVENT_ANYBUTTON_RELEASED },
1040         { 0, 0 },
1041 };
1042
1043 /*
1044  * ACPI callbacks
1045  */
1046 static void sony_nc_notify(struct acpi_device *device, u32 event)
1047 {
1048         u32 ev = event;
1049
1050         if (ev >= 0x90) {
1051                 /* New-style event */
1052                 int result;
1053                 int key_handle = 0;
1054                 ev -= 0x90;
1055
1056                 if (sony_find_snc_handle(0x100) == ev)
1057                         key_handle = 0x100;
1058                 if (sony_find_snc_handle(0x127) == ev)
1059                         key_handle = 0x127;
1060
1061                 if (key_handle) {
1062                         struct sony_nc_event *key_event;
1063
1064                         if (sony_call_snc_handle(key_handle, 0x200, &result)) {
1065                                 dprintk("sony_nc_notify, unable to decode"
1066                                         " event 0x%.2x 0x%.2x\n", key_handle,
1067                                         ev);
1068                                 /* restore the original event */
1069                                 ev = event;
1070                         } else {
1071                                 ev = result & 0xFF;
1072
1073                                 if (key_handle == 0x100)
1074                                         key_event = sony_100_events;
1075                                 else
1076                                         key_event = sony_127_events;
1077
1078                                 for (; key_event->data; key_event++) {
1079                                         if (key_event->data == ev) {
1080                                                 ev = key_event->event;
1081                                                 break;
1082                                         }
1083                                 }
1084
1085                                 if (!key_event->data)
1086                                         pr_info(DRV_PFX
1087                                                         "Unknown event: 0x%x 0x%x\n",
1088                                                         key_handle,
1089                                                         ev);
1090                                 else
1091                                         sony_laptop_report_input_event(ev);
1092                         }
1093                 } else if (sony_find_snc_handle(sony_rfkill_handle) == ev) {
1094                         sony_nc_rfkill_update();
1095                         return;
1096                 }
1097         } else
1098                 sony_laptop_report_input_event(ev);
1099
1100         dprintk("sony_nc_notify, event: 0x%.2x\n", ev);
1101         acpi_bus_generate_proc_event(sony_nc_acpi_device, 1, ev);
1102 }
1103
1104 static acpi_status sony_walk_callback(acpi_handle handle, u32 level,
1105                                       void *context, void **return_value)
1106 {
1107         struct acpi_device_info *info;
1108
1109         if (ACPI_SUCCESS(acpi_get_object_info(handle, &info))) {
1110                 pr_warn(DRV_PFX "method: name: %4.4s, args %X\n",
1111                         (char *)&info->name, info->param_count);
1112
1113                 kfree(info);
1114         }
1115
1116         return AE_OK;
1117 }
1118
1119 /*
1120  * ACPI device
1121  */
1122 static int sony_nc_function_setup(struct acpi_device *device)
1123 {
1124         int result;
1125
1126         /* Enable all events */
1127         acpi_callsetfunc(sony_nc_acpi_handle, "SN02", 0xffff, &result);
1128
1129         /* Setup hotkeys */
1130         sony_call_snc_handle(0x0100, 0, &result);
1131         sony_call_snc_handle(0x0101, 0, &result);
1132         sony_call_snc_handle(0x0102, 0x100, &result);
1133         sony_call_snc_handle(0x0127, 0, &result);
1134
1135         return 0;
1136 }
1137
1138 static int sony_nc_resume(struct acpi_device *device)
1139 {
1140         struct sony_nc_value *item;
1141         acpi_handle handle;
1142
1143         for (item = sony_nc_values; item->name; item++) {
1144                 int ret;
1145
1146                 if (!item->valid)
1147                         continue;
1148                 ret = acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset,
1149                                        item->value, NULL);
1150                 if (ret < 0) {
1151                         pr_err(DRV_PFX "%s: %d\n", __func__, ret);
1152                         break;
1153                 }
1154         }
1155
1156         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "ECON",
1157                                          &handle))) {
1158                 if (acpi_callsetfunc(sony_nc_acpi_handle, "ECON", 1, NULL))
1159                         dprintk("ECON Method failed\n");
1160         }
1161
1162         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "SN00",
1163                                          &handle))) {
1164                 dprintk("Doing SNC setup\n");
1165                 sony_nc_function_setup(device);
1166         }
1167
1168         /* re-read rfkill state */
1169         sony_nc_rfkill_update();
1170
1171         return 0;
1172 }
1173
1174 static void sony_nc_rfkill_cleanup(void)
1175 {
1176         int i;
1177
1178         for (i = 0; i < N_SONY_RFKILL; i++) {
1179                 if (sony_rfkill_devices[i]) {
1180                         rfkill_unregister(sony_rfkill_devices[i]);
1181                         rfkill_destroy(sony_rfkill_devices[i]);
1182                 }
1183         }
1184 }
1185
1186 static int sony_nc_rfkill_set(void *data, bool blocked)
1187 {
1188         int result;
1189         int argument = sony_rfkill_address[(long) data] + 0x100;
1190
1191         if (!blocked)
1192                 argument |= 0xff0000;
1193
1194         return sony_call_snc_handle(sony_rfkill_handle, argument, &result);
1195 }
1196
1197 static const struct rfkill_ops sony_rfkill_ops = {
1198         .set_block = sony_nc_rfkill_set,
1199 };
1200
1201 static int sony_nc_setup_rfkill(struct acpi_device *device,
1202                                 enum sony_nc_rfkill nc_type)
1203 {
1204         int err = 0;
1205         struct rfkill *rfk;
1206         enum rfkill_type type;
1207         const char *name;
1208         int result;
1209         bool hwblock;
1210
1211         switch (nc_type) {
1212         case SONY_WIFI:
1213                 type = RFKILL_TYPE_WLAN;
1214                 name = "sony-wifi";
1215                 break;
1216         case SONY_BLUETOOTH:
1217                 type = RFKILL_TYPE_BLUETOOTH;
1218                 name = "sony-bluetooth";
1219                 break;
1220         case SONY_WWAN:
1221                 type = RFKILL_TYPE_WWAN;
1222                 name = "sony-wwan";
1223                 break;
1224         case SONY_WIMAX:
1225                 type = RFKILL_TYPE_WIMAX;
1226                 name = "sony-wimax";
1227                 break;
1228         default:
1229                 return -EINVAL;
1230         }
1231
1232         rfk = rfkill_alloc(name, &device->dev, type,
1233                            &sony_rfkill_ops, (void *)nc_type);
1234         if (!rfk)
1235                 return -ENOMEM;
1236
1237         sony_call_snc_handle(sony_rfkill_handle, 0x200, &result);
1238         hwblock = !(result & 0x1);
1239         rfkill_set_hw_state(rfk, hwblock);
1240
1241         err = rfkill_register(rfk);
1242         if (err) {
1243                 rfkill_destroy(rfk);
1244                 return err;
1245         }
1246         sony_rfkill_devices[nc_type] = rfk;
1247         return err;
1248 }
1249
1250 static void sony_nc_rfkill_update(void)
1251 {
1252         enum sony_nc_rfkill i;
1253         int result;
1254         bool hwblock;
1255
1256         sony_call_snc_handle(sony_rfkill_handle, 0x200, &result);
1257         hwblock = !(result & 0x1);
1258
1259         for (i = 0; i < N_SONY_RFKILL; i++) {
1260                 int argument = sony_rfkill_address[i];
1261
1262                 if (!sony_rfkill_devices[i])
1263                         continue;
1264
1265                 if (hwblock) {
1266                         if (rfkill_set_hw_state(sony_rfkill_devices[i], true)) {
1267                                 /* we already know we're blocked */
1268                         }
1269                         continue;
1270                 }
1271
1272                 sony_call_snc_handle(sony_rfkill_handle, argument, &result);
1273                 rfkill_set_states(sony_rfkill_devices[i],
1274                                   !(result & 0xf), false);
1275         }
1276 }
1277
1278 static void sony_nc_rfkill_setup(struct acpi_device *device)
1279 {
1280         int offset;
1281         u8 dev_code, i;
1282         acpi_status status;
1283         struct acpi_object_list params;
1284         union acpi_object in_obj;
1285         union acpi_object *device_enum;
1286         struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
1287
1288         offset = sony_find_snc_handle(0x124);
1289         if (offset == -1) {
1290                 offset = sony_find_snc_handle(0x135);
1291                 if (offset == -1)
1292                         return;
1293                 else
1294                         sony_rfkill_handle = 0x135;
1295         } else
1296                 sony_rfkill_handle = 0x124;
1297         dprintk("Found rkfill handle: 0x%.4x\n", sony_rfkill_handle);
1298
1299         /* need to read the whole buffer returned by the acpi call to SN06
1300          * here otherwise we may miss some features
1301          */
1302         params.count = 1;
1303         params.pointer = &in_obj;
1304         in_obj.type = ACPI_TYPE_INTEGER;
1305         in_obj.integer.value = offset;
1306         status = acpi_evaluate_object(sony_nc_acpi_handle, "SN06", &params,
1307                         &buffer);
1308         if (ACPI_FAILURE(status)) {
1309                 dprintk("Radio device enumeration failed\n");
1310                 return;
1311         }
1312
1313         device_enum = (union acpi_object *) buffer.pointer;
1314         if (!device_enum || device_enum->type != ACPI_TYPE_BUFFER) {
1315                 pr_err(DRV_PFX "Invalid SN06 return object 0x%.2x\n",
1316                                 device_enum->type);
1317                 goto out_no_enum;
1318         }
1319
1320         /* the buffer is filled with magic numbers describing the devices
1321          * available, 0xff terminates the enumeration
1322          */
1323         for (i = 0; i < device_enum->buffer.length; i++) {
1324
1325                 dev_code = *(device_enum->buffer.pointer + i);
1326                 if (dev_code == 0xff)
1327                         break;
1328
1329                 dprintk("Radio devices, looking at 0x%.2x\n", dev_code);
1330
1331                 if (dev_code == 0 && !sony_rfkill_devices[SONY_WIFI])
1332                         sony_nc_setup_rfkill(device, SONY_WIFI);
1333
1334                 if (dev_code == 0x10 && !sony_rfkill_devices[SONY_BLUETOOTH])
1335                         sony_nc_setup_rfkill(device, SONY_BLUETOOTH);
1336
1337                 if ((0xf0 & dev_code) == 0x20 &&
1338                                 !sony_rfkill_devices[SONY_WWAN])
1339                         sony_nc_setup_rfkill(device, SONY_WWAN);
1340
1341                 if (dev_code == 0x30 && !sony_rfkill_devices[SONY_WIMAX])
1342                         sony_nc_setup_rfkill(device, SONY_WIMAX);
1343         }
1344
1345 out_no_enum:
1346         kfree(buffer.pointer);
1347         return;
1348 }
1349
1350 /* Keyboard backlight feature */
1351 #define KBDBL_HANDLER   0x137
1352 #define KBDBL_PRESENT   0xB00
1353 #define SET_MODE        0xC00
1354 #define SET_TIMEOUT     0xE00
1355
1356 struct kbd_backlight {
1357         int mode;
1358         int timeout;
1359         struct device_attribute mode_attr;
1360         struct device_attribute timeout_attr;
1361 };
1362
1363 static struct kbd_backlight *kbdbl_handle;
1364
1365 static ssize_t __sony_nc_kbd_backlight_mode_set(u8 value)
1366 {
1367         int result;
1368
1369         if (value > 1)
1370                 return -EINVAL;
1371
1372         if (sony_call_snc_handle(KBDBL_HANDLER,
1373                                 (value << 0x10) | SET_MODE, &result))
1374                 return -EIO;
1375
1376         kbdbl_handle->mode = value;
1377
1378         return 0;
1379 }
1380
1381 static ssize_t sony_nc_kbd_backlight_mode_store(struct device *dev,
1382                 struct device_attribute *attr,
1383                 const char *buffer, size_t count)
1384 {
1385         int ret = 0;
1386         unsigned long value;
1387
1388         if (count > 31)
1389                 return -EINVAL;
1390
1391         if (strict_strtoul(buffer, 10, &value))
1392                 return -EINVAL;
1393
1394         ret = __sony_nc_kbd_backlight_mode_set(value);
1395         if (ret < 0)
1396                 return ret;
1397
1398         return count;
1399 }
1400
1401 static ssize_t sony_nc_kbd_backlight_mode_show(struct device *dev,
1402                 struct device_attribute *attr, char *buffer)
1403 {
1404         ssize_t count = 0;
1405         count = snprintf(buffer, PAGE_SIZE, "%d\n", kbdbl_handle->mode);
1406         return count;
1407 }
1408
1409 static int __sony_nc_kbd_backlight_timeout_set(u8 value)
1410 {
1411         int result;
1412
1413         if (value > 3)
1414                 return -EINVAL;
1415
1416         if (sony_call_snc_handle(KBDBL_HANDLER,
1417                                 (value << 0x10) | SET_TIMEOUT, &result))
1418                 return -EIO;
1419
1420         kbdbl_handle->timeout = value;
1421
1422         return 0;
1423 }
1424
1425 static ssize_t sony_nc_kbd_backlight_timeout_store(struct device *dev,
1426                 struct device_attribute *attr,
1427                 const char *buffer, size_t count)
1428 {
1429         int ret = 0;
1430         unsigned long value;
1431
1432         if (count > 31)
1433                 return -EINVAL;
1434
1435         if (strict_strtoul(buffer, 10, &value))
1436                 return -EINVAL;
1437
1438         ret = __sony_nc_kbd_backlight_timeout_set(value);
1439         if (ret < 0)
1440                 return ret;
1441
1442         return count;
1443 }
1444
1445 static ssize_t sony_nc_kbd_backlight_timeout_show(struct device *dev,
1446                 struct device_attribute *attr, char *buffer)
1447 {
1448         ssize_t count = 0;
1449         count = snprintf(buffer, PAGE_SIZE, "%d\n", kbdbl_handle->timeout);
1450         return count;
1451 }
1452
1453 static int sony_nc_kbd_backlight_setup(struct platform_device *pd)
1454 {
1455         int result;
1456
1457         if (sony_call_snc_handle(0x137, KBDBL_PRESENT, &result))
1458                 return 0;
1459         if (!(result & 0x02))
1460                 return 0;
1461
1462         kbdbl_handle = kzalloc(sizeof(*kbdbl_handle), GFP_KERNEL);
1463         if (!kbdbl_handle)
1464                 return -ENOMEM;
1465
1466         sysfs_attr_init(&kbdbl_handle->mode_attr.attr);
1467         kbdbl_handle->mode_attr.attr.name = "kbd_backlight";
1468         kbdbl_handle->mode_attr.attr.mode = S_IRUGO | S_IWUSR;
1469         kbdbl_handle->mode_attr.show = sony_nc_kbd_backlight_mode_show;
1470         kbdbl_handle->mode_attr.store = sony_nc_kbd_backlight_mode_store;
1471
1472         sysfs_attr_init(&kbdbl_handle->timeout_attr.attr);
1473         kbdbl_handle->timeout_attr.attr.name = "kbd_backlight_timeout";
1474         kbdbl_handle->timeout_attr.attr.mode = S_IRUGO | S_IWUSR;
1475         kbdbl_handle->timeout_attr.show = sony_nc_kbd_backlight_timeout_show;
1476         kbdbl_handle->timeout_attr.store = sony_nc_kbd_backlight_timeout_store;
1477
1478         if (device_create_file(&pd->dev, &kbdbl_handle->mode_attr))
1479                 goto outkzalloc;
1480
1481         if (device_create_file(&pd->dev, &kbdbl_handle->timeout_attr))
1482                 goto outmode;
1483
1484         __sony_nc_kbd_backlight_mode_set(kbd_backlight);
1485         __sony_nc_kbd_backlight_timeout_set(kbd_backlight_timeout);
1486
1487         return 0;
1488
1489 outmode:
1490         device_remove_file(&pd->dev, &kbdbl_handle->mode_attr);
1491 outkzalloc:
1492         kfree(kbdbl_handle);
1493         kbdbl_handle = NULL;
1494         return -1;
1495 }
1496
1497 static int sony_nc_kbd_backlight_cleanup(struct platform_device *pd)
1498 {
1499         if (kbdbl_handle) {
1500                 device_remove_file(&pd->dev, &kbdbl_handle->mode_attr);
1501                 device_remove_file(&pd->dev, &kbdbl_handle->timeout_attr);
1502                 kfree(kbdbl_handle);
1503         }
1504         return 0;
1505 }
1506
1507 static void sony_nc_backlight_setup(void)
1508 {
1509         acpi_handle unused;
1510         int max_brightness = 0;
1511         const struct backlight_ops *ops = NULL;
1512         struct backlight_properties props;
1513
1514         if (sony_find_snc_handle(0x12f) != -1) {
1515                 backlight_ng_handle = 0x12f;
1516                 ops = &sony_backlight_ng_ops;
1517                 max_brightness = 0xff;
1518
1519         } else if (sony_find_snc_handle(0x137) != -1) {
1520                 backlight_ng_handle = 0x137;
1521                 ops = &sony_backlight_ng_ops;
1522                 max_brightness = 0xff;
1523
1524         } else if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT",
1525                                                 &unused))) {
1526                 ops = &sony_backlight_ops;
1527                 max_brightness = SONY_MAX_BRIGHTNESS - 1;
1528
1529         } else
1530                 return;
1531
1532         memset(&props, 0, sizeof(struct backlight_properties));
1533         props.type = BACKLIGHT_PLATFORM;
1534         props.max_brightness = max_brightness;
1535         sony_backlight_device = backlight_device_register("sony", NULL,
1536                                                           &backlight_ng_handle,
1537                                                           ops, &props);
1538
1539         if (IS_ERR(sony_backlight_device)) {
1540                 pr_warning(DRV_PFX "unable to register backlight device\n");
1541                 sony_backlight_device = NULL;
1542         } else
1543                 sony_backlight_device->props.brightness =
1544                     ops->get_brightness(sony_backlight_device);
1545 }
1546
1547 static void sony_nc_backlight_cleanup(void)
1548 {
1549         if (sony_backlight_device)
1550                 backlight_device_unregister(sony_backlight_device);
1551 }
1552
1553 static int sony_nc_add(struct acpi_device *device)
1554 {
1555         acpi_status status;
1556         int result = 0;
1557         acpi_handle handle;
1558         struct sony_nc_value *item;
1559
1560         pr_info(DRV_PFX "%s v%s.\n", SONY_NC_DRIVER_NAME,
1561                         SONY_LAPTOP_DRIVER_VERSION);
1562
1563         sony_nc_acpi_device = device;
1564         strcpy(acpi_device_class(device), "sony/hotkey");
1565
1566         sony_nc_acpi_handle = device->handle;
1567
1568         /* read device status */
1569         result = acpi_bus_get_status(device);
1570         /* bail IFF the above call was successful and the device is not present */
1571         if (!result && !device->status.present) {
1572                 dprintk("Device not present\n");
1573                 result = -ENODEV;
1574                 goto outwalk;
1575         }
1576
1577         result = sony_pf_add();
1578         if (result)
1579                 goto outpresent;
1580
1581         if (debug) {
1582                 status = acpi_walk_namespace(ACPI_TYPE_METHOD,
1583                                 sony_nc_acpi_handle, 1, sony_walk_callback,
1584                                 NULL, NULL, NULL);
1585                 if (ACPI_FAILURE(status)) {
1586                         pr_warn(DRV_PFX "unable to walk acpi resources\n");
1587                         result = -ENODEV;
1588                         goto outpresent;
1589                 }
1590         }
1591
1592         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "ECON",
1593                                          &handle))) {
1594                 if (acpi_callsetfunc(sony_nc_acpi_handle, "ECON", 1, NULL))
1595                         dprintk("ECON Method failed\n");
1596         }
1597
1598         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "SN00",
1599                                          &handle))) {
1600                 dprintk("Doing SNC setup\n");
1601                 result = sony_nc_handles_setup(sony_pf_device);
1602                 if (result)
1603                         goto outpresent;
1604                 result = sony_nc_kbd_backlight_setup(sony_pf_device);
1605                 if (result)
1606                         goto outsnc;
1607                 sony_nc_function_setup(device);
1608                 sony_nc_rfkill_setup(device);
1609         }
1610
1611         /* setup input devices and helper fifo */
1612         result = sony_laptop_setup_input(device);
1613         if (result) {
1614                 pr_err(DRV_PFX "Unable to create input devices.\n");
1615                 goto outkbdbacklight;
1616         }
1617
1618         if (acpi_video_backlight_support()) {
1619                 pr_info(DRV_PFX "brightness ignored, must be "
1620                        "controlled by ACPI video driver\n");
1621         } else {
1622                 sony_nc_backlight_setup();
1623         }
1624
1625         /* create sony_pf sysfs attributes related to the SNC device */
1626         for (item = sony_nc_values; item->name; ++item) {
1627
1628                 if (!debug && item->debug)
1629                         continue;
1630
1631                 /* find the available acpiget as described in the DSDT */
1632                 for (; item->acpiget && *item->acpiget; ++item->acpiget) {
1633                         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
1634                                                          *item->acpiget,
1635                                                          &handle))) {
1636                                 dprintk("Found %s getter: %s\n",
1637                                                 item->name, *item->acpiget);
1638                                 item->devattr.attr.mode |= S_IRUGO;
1639                                 break;
1640                         }
1641                 }
1642
1643                 /* find the available acpiset as described in the DSDT */
1644                 for (; item->acpiset && *item->acpiset; ++item->acpiset) {
1645                         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
1646                                                          *item->acpiset,
1647                                                          &handle))) {
1648                                 dprintk("Found %s setter: %s\n",
1649                                                 item->name, *item->acpiset);
1650                                 item->devattr.attr.mode |= S_IWUSR;
1651                                 break;
1652                         }
1653                 }
1654
1655                 if (item->devattr.attr.mode != 0) {
1656                         result =
1657                             device_create_file(&sony_pf_device->dev,
1658                                                &item->devattr);
1659                         if (result)
1660                                 goto out_sysfs;
1661                 }
1662         }
1663
1664         return 0;
1665
1666       out_sysfs:
1667         for (item = sony_nc_values; item->name; ++item) {
1668                 device_remove_file(&sony_pf_device->dev, &item->devattr);
1669         }
1670         sony_nc_backlight_cleanup();
1671
1672         sony_laptop_remove_input();
1673
1674       outkbdbacklight:
1675         sony_nc_kbd_backlight_cleanup(sony_pf_device);
1676
1677       outsnc:
1678         sony_nc_handles_cleanup(sony_pf_device);
1679
1680       outpresent:
1681         sony_pf_remove();
1682
1683       outwalk:
1684         sony_nc_rfkill_cleanup();
1685         return result;
1686 }
1687
1688 static int sony_nc_remove(struct acpi_device *device, int type)
1689 {
1690         struct sony_nc_value *item;
1691
1692         sony_nc_backlight_cleanup();
1693
1694         sony_nc_acpi_device = NULL;
1695
1696         for (item = sony_nc_values; item->name; ++item) {
1697                 device_remove_file(&sony_pf_device->dev, &item->devattr);
1698         }
1699
1700         sony_nc_kbd_backlight_cleanup(sony_pf_device);
1701         sony_nc_handles_cleanup(sony_pf_device);
1702         sony_pf_remove();
1703         sony_laptop_remove_input();
1704         sony_nc_rfkill_cleanup();
1705         dprintk(SONY_NC_DRIVER_NAME " removed.\n");
1706
1707         return 0;
1708 }
1709
1710 static const struct acpi_device_id sony_device_ids[] = {
1711         {SONY_NC_HID, 0},
1712         {SONY_PIC_HID, 0},
1713         {"", 0},
1714 };
1715 MODULE_DEVICE_TABLE(acpi, sony_device_ids);
1716
1717 static const struct acpi_device_id sony_nc_device_ids[] = {
1718         {SONY_NC_HID, 0},
1719         {"", 0},
1720 };
1721
1722 static struct acpi_driver sony_nc_driver = {
1723         .name = SONY_NC_DRIVER_NAME,
1724         .class = SONY_NC_CLASS,
1725         .ids = sony_nc_device_ids,
1726         .owner = THIS_MODULE,
1727         .ops = {
1728                 .add = sony_nc_add,
1729                 .remove = sony_nc_remove,
1730                 .resume = sony_nc_resume,
1731                 .notify = sony_nc_notify,
1732                 },
1733 };
1734
1735 /*********** SPIC (SNY6001) Device ***********/
1736
1737 #define SONYPI_DEVICE_TYPE1     0x00000001
1738 #define SONYPI_DEVICE_TYPE2     0x00000002
1739 #define SONYPI_DEVICE_TYPE3     0x00000004
1740
1741 #define SONYPI_TYPE1_OFFSET     0x04
1742 #define SONYPI_TYPE2_OFFSET     0x12
1743 #define SONYPI_TYPE3_OFFSET     0x12
1744
1745 struct sony_pic_ioport {
1746         struct acpi_resource_io io1;
1747         struct acpi_resource_io io2;
1748         struct list_head        list;
1749 };
1750
1751 struct sony_pic_irq {
1752         struct acpi_resource_irq        irq;
1753         struct list_head                list;
1754 };
1755
1756 struct sonypi_eventtypes {
1757         u8                      data;
1758         unsigned long           mask;
1759         struct sonypi_event     *events;
1760 };
1761
1762 struct sony_pic_dev {
1763         struct acpi_device              *acpi_dev;
1764         struct sony_pic_irq             *cur_irq;
1765         struct sony_pic_ioport          *cur_ioport;
1766         struct list_head                interrupts;
1767         struct list_head                ioports;
1768         struct mutex                    lock;
1769         struct sonypi_eventtypes        *event_types;
1770         int                             (*handle_irq)(const u8, const u8);
1771         int                             model;
1772         u16                             evport_offset;
1773         u8                              camera_power;
1774         u8                              bluetooth_power;
1775         u8                              wwan_power;
1776 };
1777
1778 static struct sony_pic_dev spic_dev = {
1779         .interrupts     = LIST_HEAD_INIT(spic_dev.interrupts),
1780         .ioports        = LIST_HEAD_INIT(spic_dev.ioports),
1781 };
1782
1783 static int spic_drv_registered;
1784
1785 /* Event masks */
1786 #define SONYPI_JOGGER_MASK                      0x00000001
1787 #define SONYPI_CAPTURE_MASK                     0x00000002
1788 #define SONYPI_FNKEY_MASK                       0x00000004
1789 #define SONYPI_BLUETOOTH_MASK                   0x00000008
1790 #define SONYPI_PKEY_MASK                        0x00000010
1791 #define SONYPI_BACK_MASK                        0x00000020
1792 #define SONYPI_HELP_MASK                        0x00000040
1793 #define SONYPI_LID_MASK                         0x00000080
1794 #define SONYPI_ZOOM_MASK                        0x00000100
1795 #define SONYPI_THUMBPHRASE_MASK                 0x00000200
1796 #define SONYPI_MEYE_MASK                        0x00000400
1797 #define SONYPI_MEMORYSTICK_MASK                 0x00000800
1798 #define SONYPI_BATTERY_MASK                     0x00001000
1799 #define SONYPI_WIRELESS_MASK                    0x00002000
1800
1801 struct sonypi_event {
1802         u8      data;
1803         u8      event;
1804 };
1805
1806 /* The set of possible button release events */
1807 static struct sonypi_event sonypi_releaseev[] = {
1808         { 0x00, SONYPI_EVENT_ANYBUTTON_RELEASED },
1809         { 0, 0 }
1810 };
1811
1812 /* The set of possible jogger events  */
1813 static struct sonypi_event sonypi_joggerev[] = {
1814         { 0x1f, SONYPI_EVENT_JOGDIAL_UP },
1815         { 0x01, SONYPI_EVENT_JOGDIAL_DOWN },
1816         { 0x5f, SONYPI_EVENT_JOGDIAL_UP_PRESSED },
1817         { 0x41, SONYPI_EVENT_JOGDIAL_DOWN_PRESSED },
1818         { 0x1e, SONYPI_EVENT_JOGDIAL_FAST_UP },
1819         { 0x02, SONYPI_EVENT_JOGDIAL_FAST_DOWN },
1820         { 0x5e, SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED },
1821         { 0x42, SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED },
1822         { 0x1d, SONYPI_EVENT_JOGDIAL_VFAST_UP },
1823         { 0x03, SONYPI_EVENT_JOGDIAL_VFAST_DOWN },
1824         { 0x5d, SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED },
1825         { 0x43, SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED },
1826         { 0x40, SONYPI_EVENT_JOGDIAL_PRESSED },
1827         { 0, 0 }
1828 };
1829
1830 /* The set of possible capture button events */
1831 static struct sonypi_event sonypi_captureev[] = {
1832         { 0x05, SONYPI_EVENT_CAPTURE_PARTIALPRESSED },
1833         { 0x07, SONYPI_EVENT_CAPTURE_PRESSED },
1834         { 0x40, SONYPI_EVENT_CAPTURE_PRESSED },
1835         { 0x01, SONYPI_EVENT_CAPTURE_PARTIALRELEASED },
1836         { 0, 0 }
1837 };
1838
1839 /* The set of possible fnkeys events */
1840 static struct sonypi_event sonypi_fnkeyev[] = {
1841         { 0x10, SONYPI_EVENT_FNKEY_ESC },
1842         { 0x11, SONYPI_EVENT_FNKEY_F1 },
1843         { 0x12, SONYPI_EVENT_FNKEY_F2 },
1844         { 0x13, SONYPI_EVENT_FNKEY_F3 },
1845         { 0x14, SONYPI_EVENT_FNKEY_F4 },
1846         { 0x15, SONYPI_EVENT_FNKEY_F5 },
1847         { 0x16, SONYPI_EVENT_FNKEY_F6 },
1848         { 0x17, SONYPI_EVENT_FNKEY_F7 },
1849         { 0x18, SONYPI_EVENT_FNKEY_F8 },
1850         { 0x19, SONYPI_EVENT_FNKEY_F9 },
1851         { 0x1a, SONYPI_EVENT_FNKEY_F10 },
1852         { 0x1b, SONYPI_EVENT_FNKEY_F11 },
1853         { 0x1c, SONYPI_EVENT_FNKEY_F12 },
1854         { 0x1f, SONYPI_EVENT_FNKEY_RELEASED },
1855         { 0x21, SONYPI_EVENT_FNKEY_1 },
1856         { 0x22, SONYPI_EVENT_FNKEY_2 },
1857         { 0x31, SONYPI_EVENT_FNKEY_D },
1858         { 0x32, SONYPI_EVENT_FNKEY_E },
1859         { 0x33, SONYPI_EVENT_FNKEY_F },
1860         { 0x34, SONYPI_EVENT_FNKEY_S },
1861         { 0x35, SONYPI_EVENT_FNKEY_B },
1862         { 0x36, SONYPI_EVENT_FNKEY_ONLY },
1863         { 0, 0 }
1864 };
1865
1866 /* The set of possible program key events */
1867 static struct sonypi_event sonypi_pkeyev[] = {
1868         { 0x01, SONYPI_EVENT_PKEY_P1 },
1869         { 0x02, SONYPI_EVENT_PKEY_P2 },
1870         { 0x04, SONYPI_EVENT_PKEY_P3 },
1871         { 0x20, SONYPI_EVENT_PKEY_P1 },
1872         { 0, 0 }
1873 };
1874
1875 /* The set of possible bluetooth events */
1876 static struct sonypi_event sonypi_blueev[] = {
1877         { 0x55, SONYPI_EVENT_BLUETOOTH_PRESSED },
1878         { 0x59, SONYPI_EVENT_BLUETOOTH_ON },
1879         { 0x5a, SONYPI_EVENT_BLUETOOTH_OFF },
1880         { 0, 0 }
1881 };
1882
1883 /* The set of possible wireless events */
1884 static struct sonypi_event sonypi_wlessev[] = {
1885         { 0x59, SONYPI_EVENT_IGNORE },
1886         { 0x5a, SONYPI_EVENT_IGNORE },
1887         { 0, 0 }
1888 };
1889
1890 /* The set of possible back button events */
1891 static struct sonypi_event sonypi_backev[] = {
1892         { 0x20, SONYPI_EVENT_BACK_PRESSED },
1893         { 0, 0 }
1894 };
1895
1896 /* The set of possible help button events */
1897 static struct sonypi_event sonypi_helpev[] = {
1898         { 0x3b, SONYPI_EVENT_HELP_PRESSED },
1899         { 0, 0 }
1900 };
1901
1902
1903 /* The set of possible lid events */
1904 static struct sonypi_event sonypi_lidev[] = {
1905         { 0x51, SONYPI_EVENT_LID_CLOSED },
1906         { 0x50, SONYPI_EVENT_LID_OPENED },
1907         { 0, 0 }
1908 };
1909
1910 /* The set of possible zoom events */
1911 static struct sonypi_event sonypi_zoomev[] = {
1912         { 0x39, SONYPI_EVENT_ZOOM_PRESSED },
1913         { 0x10, SONYPI_EVENT_ZOOM_IN_PRESSED },
1914         { 0x20, SONYPI_EVENT_ZOOM_OUT_PRESSED },
1915         { 0x04, SONYPI_EVENT_ZOOM_PRESSED },
1916         { 0, 0 }
1917 };
1918
1919 /* The set of possible thumbphrase events */
1920 static struct sonypi_event sonypi_thumbphraseev[] = {
1921         { 0x3a, SONYPI_EVENT_THUMBPHRASE_PRESSED },
1922         { 0, 0 }
1923 };
1924
1925 /* The set of possible motioneye camera events */
1926 static struct sonypi_event sonypi_meyeev[] = {
1927         { 0x00, SONYPI_EVENT_MEYE_FACE },
1928         { 0x01, SONYPI_EVENT_MEYE_OPPOSITE },
1929         { 0, 0 }
1930 };
1931
1932 /* The set of possible memorystick events */
1933 static struct sonypi_event sonypi_memorystickev[] = {
1934         { 0x53, SONYPI_EVENT_MEMORYSTICK_INSERT },
1935         { 0x54, SONYPI_EVENT_MEMORYSTICK_EJECT },
1936         { 0, 0 }
1937 };
1938
1939 /* The set of possible battery events */
1940 static struct sonypi_event sonypi_batteryev[] = {
1941         { 0x20, SONYPI_EVENT_BATTERY_INSERT },
1942         { 0x30, SONYPI_EVENT_BATTERY_REMOVE },
1943         { 0, 0 }
1944 };
1945
1946 /* The set of possible volume events */
1947 static struct sonypi_event sonypi_volumeev[] = {
1948         { 0x01, SONYPI_EVENT_VOLUME_INC_PRESSED },
1949         { 0x02, SONYPI_EVENT_VOLUME_DEC_PRESSED },
1950         { 0, 0 }
1951 };
1952
1953 /* The set of possible brightness events */
1954 static struct sonypi_event sonypi_brightnessev[] = {
1955         { 0x80, SONYPI_EVENT_BRIGHTNESS_PRESSED },
1956         { 0, 0 }
1957 };
1958
1959 static struct sonypi_eventtypes type1_events[] = {
1960         { 0, 0xffffffff, sonypi_releaseev },
1961         { 0x70, SONYPI_MEYE_MASK, sonypi_meyeev },
1962         { 0x30, SONYPI_LID_MASK, sonypi_lidev },
1963         { 0x60, SONYPI_CAPTURE_MASK, sonypi_captureev },
1964         { 0x10, SONYPI_JOGGER_MASK, sonypi_joggerev },
1965         { 0x20, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1966         { 0x30, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
1967         { 0x40, SONYPI_PKEY_MASK, sonypi_pkeyev },
1968         { 0x30, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1969         { 0x40, SONYPI_BATTERY_MASK, sonypi_batteryev },
1970         { 0 },
1971 };
1972 static struct sonypi_eventtypes type2_events[] = {
1973         { 0, 0xffffffff, sonypi_releaseev },
1974         { 0x38, SONYPI_LID_MASK, sonypi_lidev },
1975         { 0x11, SONYPI_JOGGER_MASK, sonypi_joggerev },
1976         { 0x61, SONYPI_CAPTURE_MASK, sonypi_captureev },
1977         { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1978         { 0x31, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
1979         { 0x08, SONYPI_PKEY_MASK, sonypi_pkeyev },
1980         { 0x11, SONYPI_BACK_MASK, sonypi_backev },
1981         { 0x21, SONYPI_HELP_MASK, sonypi_helpev },
1982         { 0x21, SONYPI_ZOOM_MASK, sonypi_zoomev },
1983         { 0x20, SONYPI_THUMBPHRASE_MASK, sonypi_thumbphraseev },
1984         { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1985         { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
1986         { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
1987         { 0 },
1988 };
1989 static struct sonypi_eventtypes type3_events[] = {
1990         { 0, 0xffffffff, sonypi_releaseev },
1991         { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1992         { 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
1993         { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1994         { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
1995         { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
1996         { 0x05, SONYPI_PKEY_MASK, sonypi_pkeyev },
1997         { 0x05, SONYPI_ZOOM_MASK, sonypi_zoomev },
1998         { 0x05, SONYPI_CAPTURE_MASK, sonypi_captureev },
1999         { 0x05, SONYPI_PKEY_MASK, sonypi_volumeev },
2000         { 0x05, SONYPI_PKEY_MASK, sonypi_brightnessev },
2001         { 0 },
2002 };
2003
2004 /* low level spic calls */
2005 #define ITERATIONS_LONG         10000
2006 #define ITERATIONS_SHORT        10
2007 #define wait_on_command(command, iterations) {                          \
2008         unsigned int n = iterations;                                    \
2009         while (--n && (command))                                        \
2010                 udelay(1);                                              \
2011         if (!n)                                                         \
2012                 dprintk("command failed at %s : %s (line %d)\n",        \
2013                                 __FILE__, __func__, __LINE__);  \
2014 }
2015
2016 static u8 sony_pic_call1(u8 dev)
2017 {
2018         u8 v1, v2;
2019
2020         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
2021                         ITERATIONS_LONG);
2022         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
2023         v1 = inb_p(spic_dev.cur_ioport->io1.minimum + 4);
2024         v2 = inb_p(spic_dev.cur_ioport->io1.minimum);
2025         dprintk("sony_pic_call1(0x%.2x): 0x%.4x\n", dev, (v2 << 8) | v1);
2026         return v2;
2027 }
2028
2029 static u8 sony_pic_call2(u8 dev, u8 fn)
2030 {
2031         u8 v1;
2032
2033         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
2034                         ITERATIONS_LONG);
2035         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
2036         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
2037                         ITERATIONS_LONG);
2038         outb(fn, spic_dev.cur_ioport->io1.minimum);
2039         v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
2040         dprintk("sony_pic_call2(0x%.2x - 0x%.2x): 0x%.4x\n", dev, fn, v1);
2041         return v1;
2042 }
2043
2044 static u8 sony_pic_call3(u8 dev, u8 fn, u8 v)
2045 {
2046         u8 v1;
2047
2048         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
2049         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
2050         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
2051         outb(fn, spic_dev.cur_ioport->io1.minimum);
2052         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
2053         outb(v, spic_dev.cur_ioport->io1.minimum);
2054         v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
2055         dprintk("sony_pic_call3(0x%.2x - 0x%.2x - 0x%.2x): 0x%.4x\n",
2056                         dev, fn, v, v1);
2057         return v1;
2058 }
2059
2060 /*
2061  * minidrivers for SPIC models
2062  */
2063 static int type3_handle_irq(const u8 data_mask, const u8 ev)
2064 {
2065         /*
2066          * 0x31 could mean we have to take some extra action and wait for
2067          * the next irq for some Type3 models, it will generate a new
2068          * irq and we can read new data from the device:
2069          *  - 0x5c and 0x5f requires 0xA0
2070          *  - 0x61 requires 0xB3
2071          */
2072         if (data_mask == 0x31) {
2073                 if (ev == 0x5c || ev == 0x5f)
2074                         sony_pic_call1(0xA0);
2075                 else if (ev == 0x61)
2076                         sony_pic_call1(0xB3);
2077                 return 0;
2078         }
2079         return 1;
2080 }
2081
2082 static void sony_pic_detect_device_type(struct sony_pic_dev *dev)
2083 {
2084         struct pci_dev *pcidev;
2085
2086         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
2087                         PCI_DEVICE_ID_INTEL_82371AB_3, NULL);
2088         if (pcidev) {
2089                 dev->model = SONYPI_DEVICE_TYPE1;
2090                 dev->evport_offset = SONYPI_TYPE1_OFFSET;
2091                 dev->event_types = type1_events;
2092                 goto out;
2093         }
2094
2095         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
2096                         PCI_DEVICE_ID_INTEL_ICH6_1, NULL);
2097         if (pcidev) {
2098                 dev->model = SONYPI_DEVICE_TYPE2;
2099                 dev->evport_offset = SONYPI_TYPE2_OFFSET;
2100                 dev->event_types = type2_events;
2101                 goto out;
2102         }
2103
2104         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
2105                         PCI_DEVICE_ID_INTEL_ICH7_1, NULL);
2106         if (pcidev) {
2107                 dev->model = SONYPI_DEVICE_TYPE3;
2108                 dev->handle_irq = type3_handle_irq;
2109                 dev->evport_offset = SONYPI_TYPE3_OFFSET;
2110                 dev->event_types = type3_events;
2111                 goto out;
2112         }
2113
2114         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
2115                         PCI_DEVICE_ID_INTEL_ICH8_4, NULL);
2116         if (pcidev) {
2117                 dev->model = SONYPI_DEVICE_TYPE3;
2118                 dev->handle_irq = type3_handle_irq;
2119                 dev->evport_offset = SONYPI_TYPE3_OFFSET;
2120                 dev->event_types = type3_events;
2121                 goto out;
2122         }
2123
2124         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
2125                         PCI_DEVICE_ID_INTEL_ICH9_1, NULL);
2126         if (pcidev) {
2127                 dev->model = SONYPI_DEVICE_TYPE3;
2128                 dev->handle_irq = type3_handle_irq;
2129                 dev->evport_offset = SONYPI_TYPE3_OFFSET;
2130                 dev->event_types = type3_events;
2131                 goto out;
2132         }
2133
2134         /* default */
2135         dev->model = SONYPI_DEVICE_TYPE2;
2136         dev->evport_offset = SONYPI_TYPE2_OFFSET;
2137         dev->event_types = type2_events;
2138
2139 out:
2140         if (pcidev)
2141                 pci_dev_put(pcidev);
2142
2143         pr_info(DRV_PFX "detected Type%d model\n",
2144                         dev->model == SONYPI_DEVICE_TYPE1 ? 1 :
2145                         dev->model == SONYPI_DEVICE_TYPE2 ? 2 : 3);
2146 }
2147
2148 /* camera tests and poweron/poweroff */
2149 #define SONYPI_CAMERA_PICTURE           5
2150 #define SONYPI_CAMERA_CONTROL           0x10
2151
2152 #define SONYPI_CAMERA_BRIGHTNESS                0
2153 #define SONYPI_CAMERA_CONTRAST                  1
2154 #define SONYPI_CAMERA_HUE                       2
2155 #define SONYPI_CAMERA_COLOR                     3
2156 #define SONYPI_CAMERA_SHARPNESS                 4
2157
2158 #define SONYPI_CAMERA_EXPOSURE_MASK             0xC
2159 #define SONYPI_CAMERA_WHITE_BALANCE_MASK        0x3
2160 #define SONYPI_CAMERA_PICTURE_MODE_MASK         0x30
2161 #define SONYPI_CAMERA_MUTE_MASK                 0x40
2162
2163 /* the rest don't need a loop until not 0xff */
2164 #define SONYPI_CAMERA_AGC                       6
2165 #define SONYPI_CAMERA_AGC_MASK                  0x30
2166 #define SONYPI_CAMERA_SHUTTER_MASK              0x7
2167
2168 #define SONYPI_CAMERA_SHUTDOWN_REQUEST          7
2169 #define SONYPI_CAMERA_CONTROL                   0x10
2170
2171 #define SONYPI_CAMERA_STATUS                    7
2172 #define SONYPI_CAMERA_STATUS_READY              0x2
2173 #define SONYPI_CAMERA_STATUS_POSITION           0x4
2174
2175 #define SONYPI_DIRECTION_BACKWARDS              0x4
2176
2177 #define SONYPI_CAMERA_REVISION                  8
2178 #define SONYPI_CAMERA_ROMVERSION                9
2179
2180 static int __sony_pic_camera_ready(void)
2181 {
2182         u8 v;
2183
2184         v = sony_pic_call2(0x8f, SONYPI_CAMERA_STATUS);
2185         return (v != 0xff && (v & SONYPI_CAMERA_STATUS_READY));
2186 }
2187
2188 static int __sony_pic_camera_off(void)
2189 {
2190         if (!camera) {
2191                 pr_warn(DRV_PFX "camera control not enabled\n");
2192                 return -ENODEV;
2193         }
2194
2195         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE,
2196                                 SONYPI_CAMERA_MUTE_MASK),
2197                         ITERATIONS_SHORT);
2198
2199         if (spic_dev.camera_power) {
2200                 sony_pic_call2(0x91, 0);
2201                 spic_dev.camera_power = 0;
2202         }
2203         return 0;
2204 }
2205
2206 static int __sony_pic_camera_on(void)
2207 {
2208         int i, j, x;
2209
2210         if (!camera) {
2211                 pr_warn(DRV_PFX "camera control not enabled\n");
2212                 return -ENODEV;
2213         }
2214
2215         if (spic_dev.camera_power)
2216                 return 0;
2217
2218         for (j = 5; j > 0; j--) {
2219
2220                 for (x = 0; x < 100 && sony_pic_call2(0x91, 0x1); x++)
2221                         msleep(10);
2222                 sony_pic_call1(0x93);
2223
2224                 for (i = 400; i > 0; i--) {
2225                         if (__sony_pic_camera_ready())
2226                                 break;
2227                         msleep(10);
2228                 }
2229                 if (i)
2230                         break;
2231         }
2232
2233         if (j == 0) {
2234                 pr_warn(DRV_PFX "failed to power on camera\n");
2235                 return -ENODEV;
2236         }
2237
2238         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTROL,
2239                                 0x5a),
2240                         ITERATIONS_SHORT);
2241
2242         spic_dev.camera_power = 1;
2243         return 0;
2244 }
2245
2246 /* External camera command (exported to the motion eye v4l driver) */
2247 int sony_pic_camera_command(int command, u8 value)
2248 {
2249         if (!camera)
2250                 return -EIO;
2251
2252         mutex_lock(&spic_dev.lock);
2253
2254         switch (command) {
2255         case SONY_PIC_COMMAND_SETCAMERA:
2256                 if (value)
2257                         __sony_pic_camera_on();
2258                 else
2259                         __sony_pic_camera_off();
2260                 break;
2261         case SONY_PIC_COMMAND_SETCAMERABRIGHTNESS:
2262                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_BRIGHTNESS, value),
2263                                 ITERATIONS_SHORT);
2264                 break;
2265         case SONY_PIC_COMMAND_SETCAMERACONTRAST:
2266                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTRAST, value),
2267                                 ITERATIONS_SHORT);
2268                 break;
2269         case SONY_PIC_COMMAND_SETCAMERAHUE:
2270                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_HUE, value),
2271                                 ITERATIONS_SHORT);
2272                 break;
2273         case SONY_PIC_COMMAND_SETCAMERACOLOR:
2274                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_COLOR, value),
2275                                 ITERATIONS_SHORT);
2276                 break;
2277         case SONY_PIC_COMMAND_SETCAMERASHARPNESS:
2278                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_SHARPNESS, value),
2279                                 ITERATIONS_SHORT);
2280                 break;
2281         case SONY_PIC_COMMAND_SETCAMERAPICTURE:
2282                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE, value),
2283                                 ITERATIONS_SHORT);
2284                 break;
2285         case SONY_PIC_COMMAND_SETCAMERAAGC:
2286                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_AGC, value),
2287                                 ITERATIONS_SHORT);
2288                 break;
2289         default:
2290                 pr_err(DRV_PFX "sony_pic_camera_command invalid: %d\n",
2291                        command);
2292                 break;
2293         }
2294         mutex_unlock(&spic_dev.lock);
2295         return 0;
2296 }
2297 EXPORT_SYMBOL(sony_pic_camera_command);
2298
2299 /* gprs/edge modem (SZ460N and SZ210P), thanks to Joshua Wise */
2300 static void __sony_pic_set_wwanpower(u8 state)
2301 {
2302         state = !!state;
2303         if (spic_dev.wwan_power == state)
2304                 return;
2305         sony_pic_call2(0xB0, state);
2306         sony_pic_call1(0x82);
2307         spic_dev.wwan_power = state;
2308 }
2309
2310 static ssize_t sony_pic_wwanpower_store(struct device *dev,
2311                 struct device_attribute *attr,
2312                 const char *buffer, size_t count)
2313 {
2314         unsigned long value;
2315         if (count > 31)
2316                 return -EINVAL;
2317
2318         value = simple_strtoul(buffer, NULL, 10);
2319         mutex_lock(&spic_dev.lock);
2320         __sony_pic_set_wwanpower(value);
2321         mutex_unlock(&spic_dev.lock);
2322
2323         return count;
2324 }
2325
2326 static ssize_t sony_pic_wwanpower_show(struct device *dev,
2327                 struct device_attribute *attr, char *buffer)
2328 {
2329         ssize_t count;
2330         mutex_lock(&spic_dev.lock);
2331         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.wwan_power);
2332         mutex_unlock(&spic_dev.lock);
2333         return count;
2334 }
2335
2336 /* bluetooth subsystem power state */
2337 static void __sony_pic_set_bluetoothpower(u8 state)
2338 {
2339         state = !!state;
2340         if (spic_dev.bluetooth_power == state)
2341                 return;
2342         sony_pic_call2(0x96, state);
2343         sony_pic_call1(0x82);
2344         spic_dev.bluetooth_power = state;
2345 }
2346
2347 static ssize_t sony_pic_bluetoothpower_store(struct device *dev,
2348                 struct device_attribute *attr,
2349                 const char *buffer, size_t count)
2350 {
2351         unsigned long value;
2352         if (count > 31)
2353                 return -EINVAL;
2354
2355         value = simple_strtoul(buffer, NULL, 10);
2356         mutex_lock(&spic_dev.lock);
2357         __sony_pic_set_bluetoothpower(value);
2358         mutex_unlock(&spic_dev.lock);
2359
2360         return count;
2361 }
2362
2363 static ssize_t sony_pic_bluetoothpower_show(struct device *dev,
2364                 struct device_attribute *attr, char *buffer)
2365 {
2366         ssize_t count = 0;
2367         mutex_lock(&spic_dev.lock);
2368         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.bluetooth_power);
2369         mutex_unlock(&spic_dev.lock);
2370         return count;
2371 }
2372
2373 /* fan speed */
2374 /* FAN0 information (reverse engineered from ACPI tables) */
2375 #define SONY_PIC_FAN0_STATUS    0x93
2376 static int sony_pic_set_fanspeed(unsigned long value)
2377 {
2378         return ec_write(SONY_PIC_FAN0_STATUS, value);
2379 }
2380
2381 static int sony_pic_get_fanspeed(u8 *value)
2382 {
2383         return ec_read(SONY_PIC_FAN0_STATUS, value);
2384 }
2385
2386 static ssize_t sony_pic_fanspeed_store(struct device *dev,
2387                 struct device_attribute *attr,
2388                 const char *buffer, size_t count)
2389 {
2390         unsigned long value;
2391         if (count > 31)
2392                 return -EINVAL;
2393
2394         value = simple_strtoul(buffer, NULL, 10);
2395         if (sony_pic_set_fanspeed(value))
2396                 return -EIO;
2397
2398         return count;
2399 }
2400
2401 static ssize_t sony_pic_fanspeed_show(struct device *dev,
2402                 struct device_attribute *attr, char *buffer)
2403 {
2404         u8 value = 0;
2405         if (sony_pic_get_fanspeed(&value))
2406                 return -EIO;
2407
2408         return snprintf(buffer, PAGE_SIZE, "%d\n", value);
2409 }
2410
2411 #define SPIC_ATTR(_name, _mode)                                 \
2412 struct device_attribute spic_attr_##_name = __ATTR(_name,       \
2413                 _mode, sony_pic_## _name ##_show,               \
2414                 sony_pic_## _name ##_store)
2415
2416 static SPIC_ATTR(bluetoothpower, 0644);
2417 static SPIC_ATTR(wwanpower, 0644);
2418 static SPIC_ATTR(fanspeed, 0644);
2419
2420 static struct attribute *spic_attributes[] = {
2421         &spic_attr_bluetoothpower.attr,
2422         &spic_attr_wwanpower.attr,
2423         &spic_attr_fanspeed.attr,
2424         NULL
2425 };
2426
2427 static struct attribute_group spic_attribute_group = {
2428         .attrs = spic_attributes
2429 };
2430
2431 /******** SONYPI compatibility **********/
2432 #ifdef CONFIG_SONYPI_COMPAT
2433
2434 /* battery / brightness / temperature  addresses */
2435 #define SONYPI_BAT_FLAGS        0x81
2436 #define SONYPI_LCD_LIGHT        0x96
2437 #define SONYPI_BAT1_PCTRM       0xa0
2438 #define SONYPI_BAT1_LEFT        0xa2
2439 #define SONYPI_BAT1_MAXRT       0xa4
2440 #define SONYPI_BAT2_PCTRM       0xa8
2441 #define SONYPI_BAT2_LEFT        0xaa
2442 #define SONYPI_BAT2_MAXRT       0xac
2443 #define SONYPI_BAT1_MAXTK       0xb0
2444 #define SONYPI_BAT1_FULL        0xb2
2445 #define SONYPI_BAT2_MAXTK       0xb8
2446 #define SONYPI_BAT2_FULL        0xba
2447 #define SONYPI_TEMP_STATUS      0xC1
2448
2449 struct sonypi_compat_s {
2450         struct fasync_struct    *fifo_async;
2451         struct kfifo            fifo;
2452         spinlock_t              fifo_lock;
2453         wait_queue_head_t       fifo_proc_list;
2454         atomic_t                open_count;
2455 };
2456 static struct sonypi_compat_s sonypi_compat = {
2457         .open_count = ATOMIC_INIT(0),
2458 };
2459
2460 static int sonypi_misc_fasync(int fd, struct file *filp, int on)
2461 {
2462         return fasync_helper(fd, filp, on, &sonypi_compat.fifo_async);
2463 }
2464
2465 static int sonypi_misc_release(struct inode *inode, struct file *file)
2466 {
2467         atomic_dec(&sonypi_compat.open_count);
2468         return 0;
2469 }
2470
2471 static int sonypi_misc_open(struct inode *inode, struct file *file)
2472 {
2473         /* Flush input queue on first open */
2474         unsigned long flags;
2475
2476         spin_lock_irqsave(&sonypi_compat.fifo_lock, flags);
2477
2478         if (atomic_inc_return(&sonypi_compat.open_count) == 1)
2479                 kfifo_reset(&sonypi_compat.fifo);
2480
2481         spin_unlock_irqrestore(&sonypi_compat.fifo_lock, flags);
2482
2483         return 0;
2484 }
2485
2486 static ssize_t sonypi_misc_read(struct file *file, char __user *buf,
2487                                 size_t count, loff_t *pos)
2488 {
2489         ssize_t ret;
2490         unsigned char c;
2491
2492         if ((kfifo_len(&sonypi_compat.fifo) == 0) &&
2493             (file->f_flags & O_NONBLOCK))
2494                 return -EAGAIN;
2495
2496         ret = wait_event_interruptible(sonypi_compat.fifo_proc_list,
2497                                        kfifo_len(&sonypi_compat.fifo) != 0);
2498         if (ret)
2499                 return ret;
2500
2501         while (ret < count &&
2502                (kfifo_out_locked(&sonypi_compat.fifo, &c, sizeof(c),
2503                           &sonypi_compat.fifo_lock) == sizeof(c))) {
2504                 if (put_user(c, buf++))
2505                         return -EFAULT;
2506                 ret++;
2507         }
2508
2509         if (ret > 0) {
2510                 struct inode *inode = file->f_path.dentry->d_inode;
2511                 inode->i_atime = current_fs_time(inode->i_sb);
2512         }
2513
2514         return ret;
2515 }
2516
2517 static unsigned int sonypi_misc_poll(struct file *file, poll_table *wait)
2518 {
2519         poll_wait(file, &sonypi_compat.fifo_proc_list, wait);
2520         if (kfifo_len(&sonypi_compat.fifo))
2521                 return POLLIN | POLLRDNORM;
2522         return 0;
2523 }
2524
2525 static int ec_read16(u8 addr, u16 *value)
2526 {
2527         u8 val_lb, val_hb;
2528         if (ec_read(addr, &val_lb))
2529                 return -1;
2530         if (ec_read(addr + 1, &val_hb))
2531                 return -1;
2532         *value = val_lb | (val_hb << 8);
2533         return 0;
2534 }
2535
2536 static long sonypi_misc_ioctl(struct file *fp, unsigned int cmd,
2537                                                         unsigned long arg)
2538 {
2539         int ret = 0;
2540         void __user *argp = (void __user *)arg;
2541         u8 val8;
2542         u16 val16;
2543         int value;
2544
2545         mutex_lock(&spic_dev.lock);
2546         switch (cmd) {
2547         case SONYPI_IOCGBRT:
2548                 if (sony_backlight_device == NULL) {
2549                         ret = -EIO;
2550                         break;
2551                 }
2552                 if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value)) {
2553                         ret = -EIO;
2554                         break;
2555                 }
2556                 val8 = ((value & 0xff) - 1) << 5;
2557                 if (copy_to_user(argp, &val8, sizeof(val8)))
2558                                 ret = -EFAULT;
2559                 break;
2560         case SONYPI_IOCSBRT:
2561                 if (sony_backlight_device == NULL) {
2562                         ret = -EIO;
2563                         break;
2564                 }
2565                 if (copy_from_user(&val8, argp, sizeof(val8))) {
2566                         ret = -EFAULT;
2567                         break;
2568                 }
2569                 if (acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
2570                                 (val8 >> 5) + 1, NULL)) {
2571                         ret = -EIO;
2572                         break;
2573                 }
2574                 /* sync the backlight device status */
2575                 sony_backlight_device->props.brightness =
2576                     sony_backlight_get_brightness(sony_backlight_device);
2577                 break;
2578         case SONYPI_IOCGBAT1CAP:
2579                 if (ec_read16(SONYPI_BAT1_FULL, &val16)) {
2580                         ret = -EIO;
2581                         break;
2582                 }
2583                 if (copy_to_user(argp, &val16, sizeof(val16)))
2584                         ret = -EFAULT;
2585                 break;
2586         case SONYPI_IOCGBAT1REM:
2587                 if (ec_read16(SONYPI_BAT1_LEFT, &val16)) {
2588                         ret = -EIO;
2589                         break;
2590                 }
2591                 if (copy_to_user(argp, &val16, sizeof(val16)))
2592                         ret = -EFAULT;
2593                 break;
2594         case SONYPI_IOCGBAT2CAP:
2595                 if (ec_read16(SONYPI_BAT2_FULL, &val16)) {
2596                         ret = -EIO;
2597                         break;
2598                 }
2599                 if (copy_to_user(argp, &val16, sizeof(val16)))
2600                         ret = -EFAULT;
2601                 break;
2602         case SONYPI_IOCGBAT2REM:
2603                 if (ec_read16(SONYPI_BAT2_LEFT, &val16)) {
2604                         ret = -EIO;
2605                         break;
2606                 }
2607                 if (copy_to_user(argp, &val16, sizeof(val16)))
2608                         ret = -EFAULT;
2609                 break;
2610         case SONYPI_IOCGBATFLAGS:
2611                 if (ec_read(SONYPI_BAT_FLAGS, &val8)) {
2612                         ret = -EIO;
2613                         break;
2614                 }
2615                 val8 &= 0x07;
2616                 if (copy_to_user(argp, &val8, sizeof(val8)))
2617                         ret = -EFAULT;
2618                 break;
2619         case SONYPI_IOCGBLUE:
2620                 val8 = spic_dev.bluetooth_power;
2621                 if (copy_to_user(argp, &val8, sizeof(val8)))
2622                         ret = -EFAULT;
2623                 break;
2624         case SONYPI_IOCSBLUE:
2625                 if (copy_from_user(&val8, argp, sizeof(val8))) {
2626                         ret = -EFAULT;
2627                         break;
2628                 }
2629                 __sony_pic_set_bluetoothpower(val8);
2630                 break;
2631         /* FAN Controls */
2632         case SONYPI_IOCGFAN:
2633                 if (sony_pic_get_fanspeed(&val8)) {
2634                         ret = -EIO;
2635                         break;
2636                 }
2637                 if (copy_to_user(argp, &val8, sizeof(val8)))
2638                         ret = -EFAULT;
2639                 break;
2640         case SONYPI_IOCSFAN:
2641                 if (copy_from_user(&val8, argp, sizeof(val8))) {
2642                         ret = -EFAULT;
2643                         break;
2644                 }
2645                 if (sony_pic_set_fanspeed(val8))
2646                         ret = -EIO;
2647                 break;
2648         /* GET Temperature (useful under APM) */
2649         case SONYPI_IOCGTEMP:
2650                 if (ec_read(SONYPI_TEMP_STATUS, &val8)) {
2651                         ret = -EIO;
2652                         break;
2653                 }
2654                 if (copy_to_user(argp, &val8, sizeof(val8)))
2655                         ret = -EFAULT;
2656                 break;
2657         default:
2658                 ret = -EINVAL;
2659         }
2660         mutex_unlock(&spic_dev.lock);
2661         return ret;
2662 }
2663
2664 static const struct file_operations sonypi_misc_fops = {
2665         .owner          = THIS_MODULE,
2666         .read           = sonypi_misc_read,
2667         .poll           = sonypi_misc_poll,
2668         .open           = sonypi_misc_open,
2669         .release        = sonypi_misc_release,
2670         .fasync         = sonypi_misc_fasync,
2671         .unlocked_ioctl = sonypi_misc_ioctl,
2672         .llseek         = noop_llseek,
2673 };
2674
2675 static struct miscdevice sonypi_misc_device = {
2676         .minor          = MISC_DYNAMIC_MINOR,
2677         .name           = "sonypi",
2678         .fops           = &sonypi_misc_fops,
2679 };
2680
2681 static void sonypi_compat_report_event(u8 event)
2682 {
2683         kfifo_in_locked(&sonypi_compat.fifo, (unsigned char *)&event,
2684                         sizeof(event), &sonypi_compat.fifo_lock);
2685         kill_fasync(&sonypi_compat.fifo_async, SIGIO, POLL_IN);
2686         wake_up_interruptible(&sonypi_compat.fifo_proc_list);
2687 }
2688
2689 static int sonypi_compat_init(void)
2690 {
2691         int error;
2692
2693         spin_lock_init(&sonypi_compat.fifo_lock);
2694         error =
2695          kfifo_alloc(&sonypi_compat.fifo, SONY_LAPTOP_BUF_SIZE, GFP_KERNEL);
2696         if (error) {
2697                 pr_err(DRV_PFX "kfifo_alloc failed\n");
2698                 return error;
2699         }
2700
2701         init_waitqueue_head(&sonypi_compat.fifo_proc_list);
2702
2703         if (minor != -1)
2704                 sonypi_misc_device.minor = minor;
2705         error = misc_register(&sonypi_misc_device);
2706         if (error) {
2707                 pr_err(DRV_PFX "misc_register failed\n");
2708                 goto err_free_kfifo;
2709         }
2710         if (minor == -1)
2711                 pr_info(DRV_PFX "device allocated minor is %d\n",
2712                        sonypi_misc_device.minor);
2713
2714         return 0;
2715
2716 err_free_kfifo:
2717         kfifo_free(&sonypi_compat.fifo);
2718         return error;
2719 }
2720
2721 static void sonypi_compat_exit(void)
2722 {
2723         misc_deregister(&sonypi_misc_device);
2724         kfifo_free(&sonypi_compat.fifo);
2725 }
2726 #else
2727 static int sonypi_compat_init(void) { return 0; }
2728 static void sonypi_compat_exit(void) { }
2729 static void sonypi_compat_report_event(u8 event) { }
2730 #endif /* CONFIG_SONYPI_COMPAT */
2731
2732 /*
2733  * ACPI callbacks
2734  */
2735 static acpi_status
2736 sony_pic_read_possible_resource(struct acpi_resource *resource, void *context)
2737 {
2738         u32 i;
2739         struct sony_pic_dev *dev = (struct sony_pic_dev *)context;
2740
2741         switch (resource->type) {
2742         case ACPI_RESOURCE_TYPE_START_DEPENDENT:
2743                 {
2744                         /* start IO enumeration */
2745                         struct sony_pic_ioport *ioport = kzalloc(sizeof(*ioport), GFP_KERNEL);
2746                         if (!ioport)
2747                                 return AE_ERROR;
2748
2749                         list_add(&ioport->list, &dev->ioports);
2750                         return AE_OK;
2751                 }
2752
2753         case ACPI_RESOURCE_TYPE_END_DEPENDENT:
2754                 /* end IO enumeration */
2755                 return AE_OK;
2756
2757         case ACPI_RESOURCE_TYPE_IRQ:
2758                 {
2759                         struct acpi_resource_irq *p = &resource->data.irq;
2760                         struct sony_pic_irq *interrupt = NULL;
2761                         if (!p || !p->interrupt_count) {
2762                                 /*
2763                                  * IRQ descriptors may have no IRQ# bits set,
2764                                  * particularly those those w/ _STA disabled
2765                                  */
2766                                 dprintk("Blank IRQ resource\n");
2767                                 return AE_OK;
2768                         }
2769                         for (i = 0; i < p->interrupt_count; i++) {
2770                                 if (!p->interrupts[i]) {
2771                                         pr_warn(DRV_PFX "Invalid IRQ %d\n",
2772                                                         p->interrupts[i]);
2773                                         continue;
2774                                 }
2775                                 interrupt = kzalloc(sizeof(*interrupt),
2776                                                 GFP_KERNEL);
2777                                 if (!interrupt)
2778                                         return AE_ERROR;
2779
2780                                 list_add(&interrupt->list, &dev->interrupts);
2781                                 interrupt->irq.triggering = p->triggering;
2782                                 interrupt->irq.polarity = p->polarity;
2783                                 interrupt->irq.sharable = p->sharable;
2784                                 interrupt->irq.interrupt_count = 1;
2785                                 interrupt->irq.interrupts[0] = p->interrupts[i];
2786                         }
2787                         return AE_OK;
2788                 }
2789         case ACPI_RESOURCE_TYPE_IO:
2790                 {
2791                         struct acpi_resource_io *io = &resource->data.io;
2792                         struct sony_pic_ioport *ioport =
2793                                 list_first_entry(&dev->ioports, struct sony_pic_ioport, list);
2794                         if (!io) {
2795                                 dprintk("Blank IO resource\n");
2796                                 return AE_OK;
2797                         }
2798
2799                         if (!ioport->io1.minimum) {
2800                                 memcpy(&ioport->io1, io, sizeof(*io));
2801                                 dprintk("IO1 at 0x%.4x (0x%.2x)\n", ioport->io1.minimum,
2802                                                 ioport->io1.address_length);
2803                         }
2804                         else if (!ioport->io2.minimum) {
2805                                 memcpy(&ioport->io2, io, sizeof(*io));
2806                                 dprintk("IO2 at 0x%.4x (0x%.2x)\n", ioport->io2.minimum,
2807                                                 ioport->io2.address_length);
2808                         }
2809                         else {
2810                                 pr_err(DRV_PFX "Unknown SPIC Type, more than 2 IO Ports\n");
2811                                 return AE_ERROR;
2812                         }
2813                         return AE_OK;
2814                 }
2815         default:
2816                 dprintk("Resource %d isn't an IRQ nor an IO port\n",
2817                                 resource->type);
2818
2819         case ACPI_RESOURCE_TYPE_END_TAG:
2820                 return AE_OK;
2821         }
2822         return AE_CTRL_TERMINATE;
2823 }
2824
2825 static int sony_pic_possible_resources(struct acpi_device *device)
2826 {
2827         int result = 0;
2828         acpi_status status = AE_OK;
2829
2830         if (!device)
2831                 return -EINVAL;
2832
2833         /* get device status */
2834         /* see acpi_pci_link_get_current acpi_pci_link_get_possible */
2835         dprintk("Evaluating _STA\n");
2836         result = acpi_bus_get_status(device);
2837         if (result) {
2838                 pr_warn(DRV_PFX "Unable to read status\n");
2839                 goto end;
2840         }
2841
2842         if (!device->status.enabled)
2843                 dprintk("Device disabled\n");
2844         else
2845                 dprintk("Device enabled\n");
2846
2847         /*
2848          * Query and parse 'method'
2849          */
2850         dprintk("Evaluating %s\n", METHOD_NAME__PRS);
2851         status = acpi_walk_resources(device->handle, METHOD_NAME__PRS,
2852                         sony_pic_read_possible_resource, &spic_dev);
2853         if (ACPI_FAILURE(status)) {
2854                 pr_warn(DRV_PFX "Failure evaluating %s\n",
2855                                 METHOD_NAME__PRS);
2856                 result = -ENODEV;
2857         }
2858 end:
2859         return result;
2860 }
2861
2862 /*
2863  *  Disable the spic device by calling its _DIS method
2864  */
2865 static int sony_pic_disable(struct acpi_device *device)
2866 {
2867         acpi_status ret = acpi_evaluate_object(device->handle, "_DIS", NULL,
2868                                                NULL);
2869
2870         if (ACPI_FAILURE(ret) && ret != AE_NOT_FOUND)
2871                 return -ENXIO;
2872
2873         dprintk("Device disabled\n");
2874         return 0;
2875 }
2876
2877
2878 /*
2879  *  Based on drivers/acpi/pci_link.c:acpi_pci_link_set
2880  *
2881  *  Call _SRS to set current resources
2882  */
2883 static int sony_pic_enable(struct acpi_device *device,
2884                 struct sony_pic_ioport *ioport, struct sony_pic_irq *irq)
2885 {
2886         acpi_status status;
2887         int result = 0;
2888         /* Type 1 resource layout is:
2889          *    IO
2890          *    IO
2891          *    IRQNoFlags
2892          *    End
2893          *
2894          * Type 2 and 3 resource layout is:
2895          *    IO
2896          *    IRQNoFlags
2897          *    End
2898          */
2899         struct {
2900                 struct acpi_resource res1;
2901                 struct acpi_resource res2;
2902                 struct acpi_resource res3;
2903                 struct acpi_resource res4;
2904         } *resource;
2905         struct acpi_buffer buffer = { 0, NULL };
2906
2907         if (!ioport || !irq)
2908                 return -EINVAL;
2909
2910         /* init acpi_buffer */
2911         resource = kzalloc(sizeof(*resource) + 1, GFP_KERNEL);
2912         if (!resource)
2913                 return -ENOMEM;
2914
2915         buffer.length = sizeof(*resource) + 1;
2916         buffer.pointer = resource;
2917
2918         /* setup Type 1 resources */
2919         if (spic_dev.model == SONYPI_DEVICE_TYPE1) {
2920
2921                 /* setup io resources */
2922                 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
2923                 resource->res1.length = sizeof(struct acpi_resource);
2924                 memcpy(&resource->res1.data.io, &ioport->io1,
2925                                 sizeof(struct acpi_resource_io));
2926
2927                 resource->res2.type = ACPI_RESOURCE_TYPE_IO;
2928                 resource->res2.length = sizeof(struct acpi_resource);
2929                 memcpy(&resource->res2.data.io, &ioport->io2,
2930                                 sizeof(struct acpi_resource_io));
2931
2932                 /* setup irq resource */
2933                 resource->res3.type = ACPI_RESOURCE_TYPE_IRQ;
2934                 resource->res3.length = sizeof(struct acpi_resource);
2935                 memcpy(&resource->res3.data.irq, &irq->irq,
2936                                 sizeof(struct acpi_resource_irq));
2937                 /* we requested a shared irq */
2938                 resource->res3.data.irq.sharable = ACPI_SHARED;
2939
2940                 resource->res4.type = ACPI_RESOURCE_TYPE_END_TAG;
2941
2942         }
2943         /* setup Type 2/3 resources */
2944         else {
2945                 /* setup io resource */
2946                 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
2947                 resource->res1.length = sizeof(struct acpi_resource);
2948                 memcpy(&resource->res1.data.io, &ioport->io1,
2949                                 sizeof(struct acpi_resource_io));
2950
2951                 /* setup irq resource */
2952                 resource->res2.type = ACPI_RESOURCE_TYPE_IRQ;
2953                 resource->res2.length = sizeof(struct acpi_resource);
2954                 memcpy(&resource->res2.data.irq, &irq->irq,
2955                                 sizeof(struct acpi_resource_irq));
2956                 /* we requested a shared irq */
2957                 resource->res2.data.irq.sharable = ACPI_SHARED;
2958
2959                 resource->res3.type = ACPI_RESOURCE_TYPE_END_TAG;
2960         }
2961
2962         /* Attempt to set the resource */
2963         dprintk("Evaluating _SRS\n");
2964         status = acpi_set_current_resources(device->handle, &buffer);
2965
2966         /* check for total failure */
2967         if (ACPI_FAILURE(status)) {
2968                 pr_err(DRV_PFX "Error evaluating _SRS\n");
2969                 result = -ENODEV;
2970                 goto end;
2971         }
2972
2973         /* Necessary device initializations calls (from sonypi) */
2974         sony_pic_call1(0x82);
2975         sony_pic_call2(0x81, 0xff);
2976         sony_pic_call1(compat ? 0x92 : 0x82);
2977
2978 end:
2979         kfree(resource);
2980         return result;
2981 }
2982
2983 /*****************
2984  *
2985  * ISR: some event is available
2986  *
2987  *****************/
2988 static irqreturn_t sony_pic_irq(int irq, void *dev_id)
2989 {
2990         int i, j;
2991         u8 ev = 0;
2992         u8 data_mask = 0;
2993         u8 device_event = 0;
2994
2995         struct sony_pic_dev *dev = (struct sony_pic_dev *) dev_id;
2996
2997         ev = inb_p(dev->cur_ioport->io1.minimum);
2998         if (dev->cur_ioport->io2.minimum)
2999                 data_mask = inb_p(dev->cur_ioport->io2.minimum);
3000         else
3001                 data_mask = inb_p(dev->cur_ioport->io1.minimum +
3002                                 dev->evport_offset);
3003
3004         dprintk("event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
3005                         ev, data_mask, dev->cur_ioport->io1.minimum,
3006                         dev->evport_offset);
3007
3008         if (ev == 0x00 || ev == 0xff)
3009                 return IRQ_HANDLED;
3010
3011         for (i = 0; dev->event_types[i].mask; i++) {
3012
3013                 if ((data_mask & dev->event_types[i].data) !=
3014                     dev->event_types[i].data)
3015                         continue;
3016
3017                 if (!(mask & dev->event_types[i].mask))
3018                         continue;
3019
3020                 for (j = 0; dev->event_types[i].events[j].event; j++) {
3021                         if (ev == dev->event_types[i].events[j].data) {
3022                                 device_event =
3023                                         dev->event_types[i].events[j].event;
3024                                 /* some events may require ignoring */
3025                                 if (!device_event)
3026                                         return IRQ_HANDLED;
3027                                 goto found;
3028                         }
3029                 }
3030         }
3031         /* Still not able to decode the event try to pass
3032          * it over to the minidriver
3033          */
3034         if (dev->handle_irq && dev->handle_irq(data_mask, ev) == 0)
3035                 return IRQ_HANDLED;
3036
3037         dprintk("unknown event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
3038                         ev, data_mask, dev->cur_ioport->io1.minimum,
3039                         dev->evport_offset);
3040         return IRQ_HANDLED;
3041
3042 found:
3043         sony_laptop_report_input_event(device_event);
3044         acpi_bus_generate_proc_event(dev->acpi_dev, 1, device_event);
3045         sonypi_compat_report_event(device_event);
3046         return IRQ_HANDLED;
3047 }
3048
3049 /*****************
3050  *
3051  *  ACPI driver
3052  *
3053  *****************/
3054 static int sony_pic_remove(struct acpi_device *device, int type)
3055 {
3056         struct sony_pic_ioport *io, *tmp_io;
3057         struct sony_pic_irq *irq, *tmp_irq;
3058
3059         if (sony_pic_disable(device)) {
3060                 pr_err(DRV_PFX "Couldn't disable device.\n");
3061                 return -ENXIO;
3062         }
3063
3064         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
3065         release_region(spic_dev.cur_ioport->io1.minimum,
3066                         spic_dev.cur_ioport->io1.address_length);
3067         if (spic_dev.cur_ioport->io2.minimum)
3068                 release_region(spic_dev.cur_ioport->io2.minimum,
3069                                 spic_dev.cur_ioport->io2.address_length);
3070
3071         sonypi_compat_exit();
3072
3073         sony_laptop_remove_input();
3074
3075         /* pf attrs */
3076         sysfs_remove_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
3077         sony_pf_remove();
3078
3079         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
3080                 list_del(&io->list);
3081                 kfree(io);
3082         }
3083         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
3084                 list_del(&irq->list);
3085                 kfree(irq);
3086         }
3087         spic_dev.cur_ioport = NULL;
3088         spic_dev.cur_irq = NULL;
3089
3090         dprintk(SONY_PIC_DRIVER_NAME " removed.\n");
3091         return 0;
3092 }
3093
3094 static int sony_pic_add(struct acpi_device *device)
3095 {
3096         int result;
3097         struct sony_pic_ioport *io, *tmp_io;
3098         struct sony_pic_irq *irq, *tmp_irq;
3099
3100         pr_info(DRV_PFX "%s v%s.\n", SONY_PIC_DRIVER_NAME,
3101                         SONY_LAPTOP_DRIVER_VERSION);
3102
3103         spic_dev.acpi_dev = device;
3104         strcpy(acpi_device_class(device), "sony/hotkey");
3105         sony_pic_detect_device_type(&spic_dev);
3106         mutex_init(&spic_dev.lock);
3107
3108         /* read _PRS resources */
3109         result = sony_pic_possible_resources(device);
3110         if (result) {
3111                 pr_err(DRV_PFX "Unable to read possible resources.\n");
3112                 goto err_free_resources;
3113         }
3114
3115         /* setup input devices and helper fifo */
3116         result = sony_laptop_setup_input(device);
3117         if (result) {
3118                 pr_err(DRV_PFX "Unable to create input devices.\n");
3119                 goto err_free_resources;
3120         }
3121
3122         if (sonypi_compat_init())
3123                 goto err_remove_input;
3124
3125         /* request io port */
3126         list_for_each_entry_reverse(io, &spic_dev.ioports, list) {
3127                 if (request_region(io->io1.minimum, io->io1.address_length,
3128                                         "Sony Programable I/O Device")) {
3129                         dprintk("I/O port1: 0x%.4x (0x%.4x) + 0x%.2x\n",
3130                                         io->io1.minimum, io->io1.maximum,
3131                                         io->io1.address_length);
3132                         /* Type 1 have 2 ioports */
3133                         if (io->io2.minimum) {
3134                                 if (request_region(io->io2.minimum,
3135                                                 io->io2.address_length,
3136                                                 "Sony Programable I/O Device")) {
3137                                         dprintk("I/O port2: 0x%.4x (0x%.4x) + 0x%.2x\n",
3138                                                         io->io2.minimum, io->io2.maximum,
3139                                                         io->io2.address_length);
3140                                         spic_dev.cur_ioport = io;
3141                                         break;
3142                                 }
3143                                 else {
3144                                         dprintk("Unable to get I/O port2: "
3145                                                         "0x%.4x (0x%.4x) + 0x%.2x\n",
3146                                                         io->io2.minimum, io->io2.maximum,
3147                                                         io->io2.address_length);
3148                                         release_region(io->io1.minimum,
3149                                                         io->io1.address_length);
3150                                 }
3151                         }
3152                         else {
3153                                 spic_dev.cur_ioport = io;
3154                                 break;
3155                         }
3156                 }
3157         }
3158         if (!spic_dev.cur_ioport) {
3159                 pr_err(DRV_PFX "Failed to request_region.\n");
3160                 result = -ENODEV;
3161                 goto err_remove_compat;
3162         }
3163
3164         /* request IRQ */
3165         list_for_each_entry_reverse(irq, &spic_dev.interrupts, list) {
3166                 if (!request_irq(irq->irq.interrupts[0], sony_pic_irq,
3167                                         IRQF_DISABLED, "sony-laptop", &spic_dev)) {
3168                         dprintk("IRQ: %d - triggering: %d - "
3169                                         "polarity: %d - shr: %d\n",
3170                                         irq->irq.interrupts[0],
3171                                         irq->irq.triggering,
3172                                         irq->irq.polarity,
3173                                         irq->irq.sharable);
3174                         spic_dev.cur_irq = irq;
3175                         break;
3176                 }
3177         }
3178         if (!spic_dev.cur_irq) {
3179                 pr_err(DRV_PFX "Failed to request_irq.\n");
3180                 result = -ENODEV;
3181                 goto err_release_region;
3182         }
3183
3184         /* set resource status _SRS */
3185         result = sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
3186         if (result) {
3187                 pr_err(DRV_PFX "Couldn't enable device.\n");
3188                 goto err_free_irq;
3189         }
3190
3191         spic_dev.bluetooth_power = -1;
3192         /* create device attributes */
3193         result = sony_pf_add();
3194         if (result)
3195                 goto err_disable_device;
3196
3197         result = sysfs_create_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
3198         if (result)
3199                 goto err_remove_pf;
3200
3201         return 0;
3202
3203 err_remove_pf:
3204         sony_pf_remove();
3205
3206 err_disable_device:
3207         sony_pic_disable(device);
3208
3209 err_free_irq:
3210         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
3211
3212 err_release_region:
3213         release_region(spic_dev.cur_ioport->io1.minimum,
3214                         spic_dev.cur_ioport->io1.address_length);
3215         if (spic_dev.cur_ioport->io2.minimum)
3216                 release_region(spic_dev.cur_ioport->io2.minimum,
3217                                 spic_dev.cur_ioport->io2.address_length);
3218
3219 err_remove_compat:
3220         sonypi_compat_exit();
3221
3222 err_remove_input:
3223         sony_laptop_remove_input();
3224
3225 err_free_resources:
3226         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
3227                 list_del(&io->list);
3228                 kfree(io);
3229         }
3230         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
3231                 list_del(&irq->list);
3232                 kfree(irq);
3233         }
3234         spic_dev.cur_ioport = NULL;
3235         spic_dev.cur_irq = NULL;
3236
3237         return result;
3238 }
3239
3240 static int sony_pic_suspend(struct acpi_device *device, pm_message_t state)
3241 {
3242         if (sony_pic_disable(device))
3243                 return -ENXIO;
3244         return 0;
3245 }
3246
3247 static int sony_pic_resume(struct acpi_device *device)
3248 {
3249         sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
3250         return 0;
3251 }
3252
3253 static const struct acpi_device_id sony_pic_device_ids[] = {
3254         {SONY_PIC_HID, 0},
3255         {"", 0},
3256 };
3257
3258 static struct acpi_driver sony_pic_driver = {
3259         .name = SONY_PIC_DRIVER_NAME,
3260         .class = SONY_PIC_CLASS,
3261         .ids = sony_pic_device_ids,
3262         .owner = THIS_MODULE,
3263         .ops = {
3264                 .add = sony_pic_add,
3265                 .remove = sony_pic_remove,
3266                 .suspend = sony_pic_suspend,
3267                 .resume = sony_pic_resume,
3268                 },
3269 };
3270
3271 static struct dmi_system_id __initdata sonypi_dmi_table[] = {
3272         {
3273                 .ident = "Sony Vaio",
3274                 .matches = {
3275                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
3276                         DMI_MATCH(DMI_PRODUCT_NAME, "PCG-"),
3277                 },
3278         },
3279         {
3280                 .ident = "Sony Vaio",
3281                 .matches = {
3282                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
3283                         DMI_MATCH(DMI_PRODUCT_NAME, "VGN-"),
3284                 },
3285         },
3286         { }
3287 };
3288
3289 static int __init sony_laptop_init(void)
3290 {
3291         int result;
3292
3293         if (!no_spic && dmi_check_system(sonypi_dmi_table)) {
3294                 result = acpi_bus_register_driver(&sony_pic_driver);
3295                 if (result) {
3296                         pr_err(DRV_PFX "Unable to register SPIC driver.");
3297                         goto out;
3298                 }
3299                 spic_drv_registered = 1;
3300         }
3301
3302         result = acpi_bus_register_driver(&sony_nc_driver);
3303         if (result) {
3304                 pr_err(DRV_PFX "Unable to register SNC driver.");
3305                 goto out_unregister_pic;
3306         }
3307
3308         return 0;
3309
3310 out_unregister_pic:
3311         if (spic_drv_registered)
3312                 acpi_bus_unregister_driver(&sony_pic_driver);
3313 out:
3314         return result;
3315 }
3316
3317 static void __exit sony_laptop_exit(void)
3318 {
3319         acpi_bus_unregister_driver(&sony_nc_driver);
3320         if (spic_drv_registered)
3321                 acpi_bus_unregister_driver(&sony_pic_driver);
3322 }
3323
3324 module_init(sony_laptop_init);
3325 module_exit(sony_laptop_exit);