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 attribute */
 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) {
1315                 pr_err(DRV_PFX "No SN06 return object.");
1316                 goto out_no_enum;
1317         }
1318         if (device_enum->type != ACPI_TYPE_BUFFER) {
1319                 pr_err(DRV_PFX "Invalid SN06 return object 0x%.2x\n",
1320                                 device_enum->type);
1321                 goto out_no_enum;
1322         }
1323
1324         /* the buffer is filled with magic numbers describing the devices
1325          * available, 0xff terminates the enumeration
1326          */
1327         for (i = 0; i < device_enum->buffer.length; i++) {
1328
1329                 dev_code = *(device_enum->buffer.pointer + i);
1330                 if (dev_code == 0xff)
1331                         break;
1332
1333                 dprintk("Radio devices, looking at 0x%.2x\n", dev_code);
1334
1335                 if (dev_code == 0 && !sony_rfkill_devices[SONY_WIFI])
1336                         sony_nc_setup_rfkill(device, SONY_WIFI);
1337
1338                 if (dev_code == 0x10 && !sony_rfkill_devices[SONY_BLUETOOTH])
1339                         sony_nc_setup_rfkill(device, SONY_BLUETOOTH);
1340
1341                 if ((0xf0 & dev_code) == 0x20 &&
1342                                 !sony_rfkill_devices[SONY_WWAN])
1343                         sony_nc_setup_rfkill(device, SONY_WWAN);
1344
1345                 if (dev_code == 0x30 && !sony_rfkill_devices[SONY_WIMAX])
1346                         sony_nc_setup_rfkill(device, SONY_WIMAX);
1347         }
1348
1349 out_no_enum:
1350         kfree(buffer.pointer);
1351         return;
1352 }
1353
1354 /* Keyboard backlight feature */
1355 #define KBDBL_HANDLER   0x137
1356 #define KBDBL_PRESENT   0xB00
1357 #define SET_MODE        0xC00
1358 #define SET_TIMEOUT     0xE00
1359
1360 struct kbd_backlight {
1361         int mode;
1362         int timeout;
1363         struct device_attribute mode_attr;
1364         struct device_attribute timeout_attr;
1365 };
1366
1367 static struct kbd_backlight *kbdbl_handle;
1368
1369 static ssize_t __sony_nc_kbd_backlight_mode_set(u8 value)
1370 {
1371         int result;
1372
1373         if (value > 1)
1374                 return -EINVAL;
1375
1376         if (sony_call_snc_handle(KBDBL_HANDLER,
1377                                 (value << 0x10) | SET_MODE, &result))
1378                 return -EIO;
1379
1380         kbdbl_handle->mode = value;
1381
1382         return 0;
1383 }
1384
1385 static ssize_t sony_nc_kbd_backlight_mode_store(struct device *dev,
1386                 struct device_attribute *attr,
1387                 const char *buffer, size_t count)
1388 {
1389         int ret = 0;
1390         unsigned long value;
1391
1392         if (count > 31)
1393                 return -EINVAL;
1394
1395         if (strict_strtoul(buffer, 10, &value))
1396                 return -EINVAL;
1397
1398         ret = __sony_nc_kbd_backlight_mode_set(value);
1399         if (ret < 0)
1400                 return ret;
1401
1402         return count;
1403 }
1404
1405 static ssize_t sony_nc_kbd_backlight_mode_show(struct device *dev,
1406                 struct device_attribute *attr, char *buffer)
1407 {
1408         ssize_t count = 0;
1409         count = snprintf(buffer, PAGE_SIZE, "%d\n", kbdbl_handle->mode);
1410         return count;
1411 }
1412
1413 static int __sony_nc_kbd_backlight_timeout_set(u8 value)
1414 {
1415         int result;
1416
1417         if (value > 3)
1418                 return -EINVAL;
1419
1420         if (sony_call_snc_handle(KBDBL_HANDLER,
1421                                 (value << 0x10) | SET_TIMEOUT, &result))
1422                 return -EIO;
1423
1424         kbdbl_handle->timeout = value;
1425
1426         return 0;
1427 }
1428
1429 static ssize_t sony_nc_kbd_backlight_timeout_store(struct device *dev,
1430                 struct device_attribute *attr,
1431                 const char *buffer, size_t count)
1432 {
1433         int ret = 0;
1434         unsigned long value;
1435
1436         if (count > 31)
1437                 return -EINVAL;
1438
1439         if (strict_strtoul(buffer, 10, &value))
1440                 return -EINVAL;
1441
1442         ret = __sony_nc_kbd_backlight_timeout_set(value);
1443         if (ret < 0)
1444                 return ret;
1445
1446         return count;
1447 }
1448
1449 static ssize_t sony_nc_kbd_backlight_timeout_show(struct device *dev,
1450                 struct device_attribute *attr, char *buffer)
1451 {
1452         ssize_t count = 0;
1453         count = snprintf(buffer, PAGE_SIZE, "%d\n", kbdbl_handle->timeout);
1454         return count;
1455 }
1456
1457 static int sony_nc_kbd_backlight_setup(struct platform_device *pd)
1458 {
1459         int result;
1460
1461         if (sony_call_snc_handle(0x137, KBDBL_PRESENT, &result))
1462                 return 0;
1463         if (!(result & 0x02))
1464                 return 0;
1465
1466         kbdbl_handle = kzalloc(sizeof(*kbdbl_handle), GFP_KERNEL);
1467         if (!kbdbl_handle)
1468                 return -ENOMEM;
1469
1470         sysfs_attr_init(&kbdbl_handle->mode_attr.attr);
1471         kbdbl_handle->mode_attr.attr.name = "kbd_backlight";
1472         kbdbl_handle->mode_attr.attr.mode = S_IRUGO | S_IWUSR;
1473         kbdbl_handle->mode_attr.show = sony_nc_kbd_backlight_mode_show;
1474         kbdbl_handle->mode_attr.store = sony_nc_kbd_backlight_mode_store;
1475
1476         sysfs_attr_init(&kbdbl_handle->timeout_attr.attr);
1477         kbdbl_handle->timeout_attr.attr.name = "kbd_backlight_timeout";
1478         kbdbl_handle->timeout_attr.attr.mode = S_IRUGO | S_IWUSR;
1479         kbdbl_handle->timeout_attr.show = sony_nc_kbd_backlight_timeout_show;
1480         kbdbl_handle->timeout_attr.store = sony_nc_kbd_backlight_timeout_store;
1481
1482         if (device_create_file(&pd->dev, &kbdbl_handle->mode_attr))
1483                 goto outkzalloc;
1484
1485         if (device_create_file(&pd->dev, &kbdbl_handle->timeout_attr))
1486                 goto outmode;
1487
1488         __sony_nc_kbd_backlight_mode_set(kbd_backlight);
1489         __sony_nc_kbd_backlight_timeout_set(kbd_backlight_timeout);
1490
1491         return 0;
1492
1493 outmode:
1494         device_remove_file(&pd->dev, &kbdbl_handle->mode_attr);
1495 outkzalloc:
1496         kfree(kbdbl_handle);
1497         kbdbl_handle = NULL;
1498         return -1;
1499 }
1500
1501 static int sony_nc_kbd_backlight_cleanup(struct platform_device *pd)
1502 {
1503         if (kbdbl_handle) {
1504                 device_remove_file(&pd->dev, &kbdbl_handle->mode_attr);
1505                 device_remove_file(&pd->dev, &kbdbl_handle->timeout_attr);
1506                 kfree(kbdbl_handle);
1507         }
1508         return 0;
1509 }
1510
1511 static void sony_nc_backlight_setup(void)
1512 {
1513         acpi_handle unused;
1514         int max_brightness = 0;
1515         const struct backlight_ops *ops = NULL;
1516         struct backlight_properties props;
1517
1518         if (sony_find_snc_handle(0x12f) != -1) {
1519                 backlight_ng_handle = 0x12f;
1520                 ops = &sony_backlight_ng_ops;
1521                 max_brightness = 0xff;
1522
1523         } else if (sony_find_snc_handle(0x137) != -1) {
1524                 backlight_ng_handle = 0x137;
1525                 ops = &sony_backlight_ng_ops;
1526                 max_brightness = 0xff;
1527
1528         } else if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT",
1529                                                 &unused))) {
1530                 ops = &sony_backlight_ops;
1531                 max_brightness = SONY_MAX_BRIGHTNESS - 1;
1532
1533         } else
1534                 return;
1535
1536         memset(&props, 0, sizeof(struct backlight_properties));
1537         props.type = BACKLIGHT_PLATFORM;
1538         props.max_brightness = max_brightness;
1539         sony_backlight_device = backlight_device_register("sony", NULL,
1540                                                           &backlight_ng_handle,
1541                                                           ops, &props);
1542
1543         if (IS_ERR(sony_backlight_device)) {
1544                 pr_warning(DRV_PFX "unable to register backlight device\n");
1545                 sony_backlight_device = NULL;
1546         } else
1547                 sony_backlight_device->props.brightness =
1548                     ops->get_brightness(sony_backlight_device);
1549 }
1550
1551 static void sony_nc_backlight_cleanup(void)
1552 {
1553         if (sony_backlight_device)
1554                 backlight_device_unregister(sony_backlight_device);
1555 }
1556
1557 static int sony_nc_add(struct acpi_device *device)
1558 {
1559         acpi_status status;
1560         int result = 0;
1561         acpi_handle handle;
1562         struct sony_nc_value *item;
1563
1564         pr_info(DRV_PFX "%s v%s.\n", SONY_NC_DRIVER_NAME,
1565                         SONY_LAPTOP_DRIVER_VERSION);
1566
1567         sony_nc_acpi_device = device;
1568         strcpy(acpi_device_class(device), "sony/hotkey");
1569
1570         sony_nc_acpi_handle = device->handle;
1571
1572         /* read device status */
1573         result = acpi_bus_get_status(device);
1574         /* bail IFF the above call was successful and the device is not present */
1575         if (!result && !device->status.present) {
1576                 dprintk("Device not present\n");
1577                 result = -ENODEV;
1578                 goto outwalk;
1579         }
1580
1581         result = sony_pf_add();
1582         if (result)
1583                 goto outpresent;
1584
1585         if (debug) {
1586                 status = acpi_walk_namespace(ACPI_TYPE_METHOD,
1587                                 sony_nc_acpi_handle, 1, sony_walk_callback,
1588                                 NULL, NULL, NULL);
1589                 if (ACPI_FAILURE(status)) {
1590                         pr_warn(DRV_PFX "unable to walk acpi resources\n");
1591                         result = -ENODEV;
1592                         goto outpresent;
1593                 }
1594         }
1595
1596         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "ECON",
1597                                          &handle))) {
1598                 if (acpi_callsetfunc(sony_nc_acpi_handle, "ECON", 1, NULL))
1599                         dprintk("ECON Method failed\n");
1600         }
1601
1602         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "SN00",
1603                                          &handle))) {
1604                 dprintk("Doing SNC setup\n");
1605                 result = sony_nc_handles_setup(sony_pf_device);
1606                 if (result)
1607                         goto outpresent;
1608                 result = sony_nc_kbd_backlight_setup(sony_pf_device);
1609                 if (result)
1610                         goto outsnc;
1611                 sony_nc_function_setup(device);
1612                 sony_nc_rfkill_setup(device);
1613         }
1614
1615         /* setup input devices and helper fifo */
1616         result = sony_laptop_setup_input(device);
1617         if (result) {
1618                 pr_err(DRV_PFX "Unable to create input devices.\n");
1619                 goto outkbdbacklight;
1620         }
1621
1622         if (acpi_video_backlight_support()) {
1623                 pr_info(DRV_PFX "brightness ignored, must be "
1624                        "controlled by ACPI video driver\n");
1625         } else {
1626                 sony_nc_backlight_setup();
1627         }
1628
1629         /* create sony_pf sysfs attributes related to the SNC device */
1630         for (item = sony_nc_values; item->name; ++item) {
1631
1632                 if (!debug && item->debug)
1633                         continue;
1634
1635                 /* find the available acpiget as described in the DSDT */
1636                 for (; item->acpiget && *item->acpiget; ++item->acpiget) {
1637                         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
1638                                                          *item->acpiget,
1639                                                          &handle))) {
1640                                 dprintk("Found %s getter: %s\n",
1641                                                 item->name, *item->acpiget);
1642                                 item->devattr.attr.mode |= S_IRUGO;
1643                                 break;
1644                         }
1645                 }
1646
1647                 /* find the available acpiset as described in the DSDT */
1648                 for (; item->acpiset && *item->acpiset; ++item->acpiset) {
1649                         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
1650                                                          *item->acpiset,
1651                                                          &handle))) {
1652                                 dprintk("Found %s setter: %s\n",
1653                                                 item->name, *item->acpiset);
1654                                 item->devattr.attr.mode |= S_IWUSR;
1655                                 break;
1656                         }
1657                 }
1658
1659                 if (item->devattr.attr.mode != 0) {
1660                         result =
1661                             device_create_file(&sony_pf_device->dev,
1662                                                &item->devattr);
1663                         if (result)
1664                                 goto out_sysfs;
1665                 }
1666         }
1667
1668         return 0;
1669
1670       out_sysfs:
1671         for (item = sony_nc_values; item->name; ++item) {
1672                 device_remove_file(&sony_pf_device->dev, &item->devattr);
1673         }
1674         sony_nc_backlight_cleanup();
1675
1676         sony_laptop_remove_input();
1677
1678       outkbdbacklight:
1679         sony_nc_kbd_backlight_cleanup(sony_pf_device);
1680
1681       outsnc:
1682         sony_nc_handles_cleanup(sony_pf_device);
1683
1684       outpresent:
1685         sony_pf_remove();
1686
1687       outwalk:
1688         sony_nc_rfkill_cleanup();
1689         return result;
1690 }
1691
1692 static int sony_nc_remove(struct acpi_device *device, int type)
1693 {
1694         struct sony_nc_value *item;
1695
1696         sony_nc_backlight_cleanup();
1697
1698         sony_nc_acpi_device = NULL;
1699
1700         for (item = sony_nc_values; item->name; ++item) {
1701                 device_remove_file(&sony_pf_device->dev, &item->devattr);
1702         }
1703
1704         sony_nc_kbd_backlight_cleanup(sony_pf_device);
1705         sony_nc_handles_cleanup(sony_pf_device);
1706         sony_pf_remove();
1707         sony_laptop_remove_input();
1708         sony_nc_rfkill_cleanup();
1709         dprintk(SONY_NC_DRIVER_NAME " removed.\n");
1710
1711         return 0;
1712 }
1713
1714 static const struct acpi_device_id sony_device_ids[] = {
1715         {SONY_NC_HID, 0},
1716         {SONY_PIC_HID, 0},
1717         {"", 0},
1718 };
1719 MODULE_DEVICE_TABLE(acpi, sony_device_ids);
1720
1721 static const struct acpi_device_id sony_nc_device_ids[] = {
1722         {SONY_NC_HID, 0},
1723         {"", 0},
1724 };
1725
1726 static struct acpi_driver sony_nc_driver = {
1727         .name = SONY_NC_DRIVER_NAME,
1728         .class = SONY_NC_CLASS,
1729         .ids = sony_nc_device_ids,
1730         .owner = THIS_MODULE,
1731         .ops = {
1732                 .add = sony_nc_add,
1733                 .remove = sony_nc_remove,
1734                 .resume = sony_nc_resume,
1735                 .notify = sony_nc_notify,
1736                 },
1737 };
1738
1739 /*********** SPIC (SNY6001) Device ***********/
1740
1741 #define SONYPI_DEVICE_TYPE1     0x00000001
1742 #define SONYPI_DEVICE_TYPE2     0x00000002
1743 #define SONYPI_DEVICE_TYPE3     0x00000004
1744
1745 #define SONYPI_TYPE1_OFFSET     0x04
1746 #define SONYPI_TYPE2_OFFSET     0x12
1747 #define SONYPI_TYPE3_OFFSET     0x12
1748
1749 struct sony_pic_ioport {
1750         struct acpi_resource_io io1;
1751         struct acpi_resource_io io2;
1752         struct list_head        list;
1753 };
1754
1755 struct sony_pic_irq {
1756         struct acpi_resource_irq        irq;
1757         struct list_head                list;
1758 };
1759
1760 struct sonypi_eventtypes {
1761         u8                      data;
1762         unsigned long           mask;
1763         struct sonypi_event     *events;
1764 };
1765
1766 struct sony_pic_dev {
1767         struct acpi_device              *acpi_dev;
1768         struct sony_pic_irq             *cur_irq;
1769         struct sony_pic_ioport          *cur_ioport;
1770         struct list_head                interrupts;
1771         struct list_head                ioports;
1772         struct mutex                    lock;
1773         struct sonypi_eventtypes        *event_types;
1774         int                             (*handle_irq)(const u8, const u8);
1775         int                             model;
1776         u16                             evport_offset;
1777         u8                              camera_power;
1778         u8                              bluetooth_power;
1779         u8                              wwan_power;
1780 };
1781
1782 static struct sony_pic_dev spic_dev = {
1783         .interrupts     = LIST_HEAD_INIT(spic_dev.interrupts),
1784         .ioports        = LIST_HEAD_INIT(spic_dev.ioports),
1785 };
1786
1787 static int spic_drv_registered;
1788
1789 /* Event masks */
1790 #define SONYPI_JOGGER_MASK                      0x00000001
1791 #define SONYPI_CAPTURE_MASK                     0x00000002
1792 #define SONYPI_FNKEY_MASK                       0x00000004
1793 #define SONYPI_BLUETOOTH_MASK                   0x00000008
1794 #define SONYPI_PKEY_MASK                        0x00000010
1795 #define SONYPI_BACK_MASK                        0x00000020
1796 #define SONYPI_HELP_MASK                        0x00000040
1797 #define SONYPI_LID_MASK                         0x00000080
1798 #define SONYPI_ZOOM_MASK                        0x00000100
1799 #define SONYPI_THUMBPHRASE_MASK                 0x00000200
1800 #define SONYPI_MEYE_MASK                        0x00000400
1801 #define SONYPI_MEMORYSTICK_MASK                 0x00000800
1802 #define SONYPI_BATTERY_MASK                     0x00001000
1803 #define SONYPI_WIRELESS_MASK                    0x00002000
1804
1805 struct sonypi_event {
1806         u8      data;
1807         u8      event;
1808 };
1809
1810 /* The set of possible button release events */
1811 static struct sonypi_event sonypi_releaseev[] = {
1812         { 0x00, SONYPI_EVENT_ANYBUTTON_RELEASED },
1813         { 0, 0 }
1814 };
1815
1816 /* The set of possible jogger events  */
1817 static struct sonypi_event sonypi_joggerev[] = {
1818         { 0x1f, SONYPI_EVENT_JOGDIAL_UP },
1819         { 0x01, SONYPI_EVENT_JOGDIAL_DOWN },
1820         { 0x5f, SONYPI_EVENT_JOGDIAL_UP_PRESSED },
1821         { 0x41, SONYPI_EVENT_JOGDIAL_DOWN_PRESSED },
1822         { 0x1e, SONYPI_EVENT_JOGDIAL_FAST_UP },
1823         { 0x02, SONYPI_EVENT_JOGDIAL_FAST_DOWN },
1824         { 0x5e, SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED },
1825         { 0x42, SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED },
1826         { 0x1d, SONYPI_EVENT_JOGDIAL_VFAST_UP },
1827         { 0x03, SONYPI_EVENT_JOGDIAL_VFAST_DOWN },
1828         { 0x5d, SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED },
1829         { 0x43, SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED },
1830         { 0x40, SONYPI_EVENT_JOGDIAL_PRESSED },
1831         { 0, 0 }
1832 };
1833
1834 /* The set of possible capture button events */
1835 static struct sonypi_event sonypi_captureev[] = {
1836         { 0x05, SONYPI_EVENT_CAPTURE_PARTIALPRESSED },
1837         { 0x07, SONYPI_EVENT_CAPTURE_PRESSED },
1838         { 0x40, SONYPI_EVENT_CAPTURE_PRESSED },
1839         { 0x01, SONYPI_EVENT_CAPTURE_PARTIALRELEASED },
1840         { 0, 0 }
1841 };
1842
1843 /* The set of possible fnkeys events */
1844 static struct sonypi_event sonypi_fnkeyev[] = {
1845         { 0x10, SONYPI_EVENT_FNKEY_ESC },
1846         { 0x11, SONYPI_EVENT_FNKEY_F1 },
1847         { 0x12, SONYPI_EVENT_FNKEY_F2 },
1848         { 0x13, SONYPI_EVENT_FNKEY_F3 },
1849         { 0x14, SONYPI_EVENT_FNKEY_F4 },
1850         { 0x15, SONYPI_EVENT_FNKEY_F5 },
1851         { 0x16, SONYPI_EVENT_FNKEY_F6 },
1852         { 0x17, SONYPI_EVENT_FNKEY_F7 },
1853         { 0x18, SONYPI_EVENT_FNKEY_F8 },
1854         { 0x19, SONYPI_EVENT_FNKEY_F9 },
1855         { 0x1a, SONYPI_EVENT_FNKEY_F10 },
1856         { 0x1b, SONYPI_EVENT_FNKEY_F11 },
1857         { 0x1c, SONYPI_EVENT_FNKEY_F12 },
1858         { 0x1f, SONYPI_EVENT_FNKEY_RELEASED },
1859         { 0x21, SONYPI_EVENT_FNKEY_1 },
1860         { 0x22, SONYPI_EVENT_FNKEY_2 },
1861         { 0x31, SONYPI_EVENT_FNKEY_D },
1862         { 0x32, SONYPI_EVENT_FNKEY_E },
1863         { 0x33, SONYPI_EVENT_FNKEY_F },
1864         { 0x34, SONYPI_EVENT_FNKEY_S },
1865         { 0x35, SONYPI_EVENT_FNKEY_B },
1866         { 0x36, SONYPI_EVENT_FNKEY_ONLY },
1867         { 0, 0 }
1868 };
1869
1870 /* The set of possible program key events */
1871 static struct sonypi_event sonypi_pkeyev[] = {
1872         { 0x01, SONYPI_EVENT_PKEY_P1 },
1873         { 0x02, SONYPI_EVENT_PKEY_P2 },
1874         { 0x04, SONYPI_EVENT_PKEY_P3 },
1875         { 0x20, SONYPI_EVENT_PKEY_P1 },
1876         { 0, 0 }
1877 };
1878
1879 /* The set of possible bluetooth events */
1880 static struct sonypi_event sonypi_blueev[] = {
1881         { 0x55, SONYPI_EVENT_BLUETOOTH_PRESSED },
1882         { 0x59, SONYPI_EVENT_BLUETOOTH_ON },
1883         { 0x5a, SONYPI_EVENT_BLUETOOTH_OFF },
1884         { 0, 0 }
1885 };
1886
1887 /* The set of possible wireless events */
1888 static struct sonypi_event sonypi_wlessev[] = {
1889         { 0x59, SONYPI_EVENT_IGNORE },
1890         { 0x5a, SONYPI_EVENT_IGNORE },
1891         { 0, 0 }
1892 };
1893
1894 /* The set of possible back button events */
1895 static struct sonypi_event sonypi_backev[] = {
1896         { 0x20, SONYPI_EVENT_BACK_PRESSED },
1897         { 0, 0 }
1898 };
1899
1900 /* The set of possible help button events */
1901 static struct sonypi_event sonypi_helpev[] = {
1902         { 0x3b, SONYPI_EVENT_HELP_PRESSED },
1903         { 0, 0 }
1904 };
1905
1906
1907 /* The set of possible lid events */
1908 static struct sonypi_event sonypi_lidev[] = {
1909         { 0x51, SONYPI_EVENT_LID_CLOSED },
1910         { 0x50, SONYPI_EVENT_LID_OPENED },
1911         { 0, 0 }
1912 };
1913
1914 /* The set of possible zoom events */
1915 static struct sonypi_event sonypi_zoomev[] = {
1916         { 0x39, SONYPI_EVENT_ZOOM_PRESSED },
1917         { 0x10, SONYPI_EVENT_ZOOM_IN_PRESSED },
1918         { 0x20, SONYPI_EVENT_ZOOM_OUT_PRESSED },
1919         { 0x04, SONYPI_EVENT_ZOOM_PRESSED },
1920         { 0, 0 }
1921 };
1922
1923 /* The set of possible thumbphrase events */
1924 static struct sonypi_event sonypi_thumbphraseev[] = {
1925         { 0x3a, SONYPI_EVENT_THUMBPHRASE_PRESSED },
1926         { 0, 0 }
1927 };
1928
1929 /* The set of possible motioneye camera events */
1930 static struct sonypi_event sonypi_meyeev[] = {
1931         { 0x00, SONYPI_EVENT_MEYE_FACE },
1932         { 0x01, SONYPI_EVENT_MEYE_OPPOSITE },
1933         { 0, 0 }
1934 };
1935
1936 /* The set of possible memorystick events */
1937 static struct sonypi_event sonypi_memorystickev[] = {
1938         { 0x53, SONYPI_EVENT_MEMORYSTICK_INSERT },
1939         { 0x54, SONYPI_EVENT_MEMORYSTICK_EJECT },
1940         { 0, 0 }
1941 };
1942
1943 /* The set of possible battery events */
1944 static struct sonypi_event sonypi_batteryev[] = {
1945         { 0x20, SONYPI_EVENT_BATTERY_INSERT },
1946         { 0x30, SONYPI_EVENT_BATTERY_REMOVE },
1947         { 0, 0 }
1948 };
1949
1950 /* The set of possible volume events */
1951 static struct sonypi_event sonypi_volumeev[] = {
1952         { 0x01, SONYPI_EVENT_VOLUME_INC_PRESSED },
1953         { 0x02, SONYPI_EVENT_VOLUME_DEC_PRESSED },
1954         { 0, 0 }
1955 };
1956
1957 /* The set of possible brightness events */
1958 static struct sonypi_event sonypi_brightnessev[] = {
1959         { 0x80, SONYPI_EVENT_BRIGHTNESS_PRESSED },
1960         { 0, 0 }
1961 };
1962
1963 static struct sonypi_eventtypes type1_events[] = {
1964         { 0, 0xffffffff, sonypi_releaseev },
1965         { 0x70, SONYPI_MEYE_MASK, sonypi_meyeev },
1966         { 0x30, SONYPI_LID_MASK, sonypi_lidev },
1967         { 0x60, SONYPI_CAPTURE_MASK, sonypi_captureev },
1968         { 0x10, SONYPI_JOGGER_MASK, sonypi_joggerev },
1969         { 0x20, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1970         { 0x30, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
1971         { 0x40, SONYPI_PKEY_MASK, sonypi_pkeyev },
1972         { 0x30, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1973         { 0x40, SONYPI_BATTERY_MASK, sonypi_batteryev },
1974         { 0 },
1975 };
1976 static struct sonypi_eventtypes type2_events[] = {
1977         { 0, 0xffffffff, sonypi_releaseev },
1978         { 0x38, SONYPI_LID_MASK, sonypi_lidev },
1979         { 0x11, SONYPI_JOGGER_MASK, sonypi_joggerev },
1980         { 0x61, SONYPI_CAPTURE_MASK, sonypi_captureev },
1981         { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1982         { 0x31, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
1983         { 0x08, SONYPI_PKEY_MASK, sonypi_pkeyev },
1984         { 0x11, SONYPI_BACK_MASK, sonypi_backev },
1985         { 0x21, SONYPI_HELP_MASK, sonypi_helpev },
1986         { 0x21, SONYPI_ZOOM_MASK, sonypi_zoomev },
1987         { 0x20, SONYPI_THUMBPHRASE_MASK, sonypi_thumbphraseev },
1988         { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1989         { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
1990         { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
1991         { 0 },
1992 };
1993 static struct sonypi_eventtypes type3_events[] = {
1994         { 0, 0xffffffff, sonypi_releaseev },
1995         { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1996         { 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
1997         { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1998         { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
1999         { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
2000         { 0x05, SONYPI_PKEY_MASK, sonypi_pkeyev },
2001         { 0x05, SONYPI_ZOOM_MASK, sonypi_zoomev },
2002         { 0x05, SONYPI_CAPTURE_MASK, sonypi_captureev },
2003         { 0x05, SONYPI_PKEY_MASK, sonypi_volumeev },
2004         { 0x05, SONYPI_PKEY_MASK, sonypi_brightnessev },
2005         { 0 },
2006 };
2007
2008 /* low level spic calls */
2009 #define ITERATIONS_LONG         10000
2010 #define ITERATIONS_SHORT        10
2011 #define wait_on_command(command, iterations) {                          \
2012         unsigned int n = iterations;                                    \
2013         while (--n && (command))                                        \
2014                 udelay(1);                                              \
2015         if (!n)                                                         \
2016                 dprintk("command failed at %s : %s (line %d)\n",        \
2017                                 __FILE__, __func__, __LINE__);  \
2018 }
2019
2020 static u8 sony_pic_call1(u8 dev)
2021 {
2022         u8 v1, v2;
2023
2024         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
2025                         ITERATIONS_LONG);
2026         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
2027         v1 = inb_p(spic_dev.cur_ioport->io1.minimum + 4);
2028         v2 = inb_p(spic_dev.cur_ioport->io1.minimum);
2029         dprintk("sony_pic_call1(0x%.2x): 0x%.4x\n", dev, (v2 << 8) | v1);
2030         return v2;
2031 }
2032
2033 static u8 sony_pic_call2(u8 dev, u8 fn)
2034 {
2035         u8 v1;
2036
2037         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
2038                         ITERATIONS_LONG);
2039         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
2040         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
2041                         ITERATIONS_LONG);
2042         outb(fn, spic_dev.cur_ioport->io1.minimum);
2043         v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
2044         dprintk("sony_pic_call2(0x%.2x - 0x%.2x): 0x%.4x\n", dev, fn, v1);
2045         return v1;
2046 }
2047
2048 static u8 sony_pic_call3(u8 dev, u8 fn, u8 v)
2049 {
2050         u8 v1;
2051
2052         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
2053         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
2054         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
2055         outb(fn, spic_dev.cur_ioport->io1.minimum);
2056         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
2057         outb(v, spic_dev.cur_ioport->io1.minimum);
2058         v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
2059         dprintk("sony_pic_call3(0x%.2x - 0x%.2x - 0x%.2x): 0x%.4x\n",
2060                         dev, fn, v, v1);
2061         return v1;
2062 }
2063
2064 /*
2065  * minidrivers for SPIC models
2066  */
2067 static int type3_handle_irq(const u8 data_mask, const u8 ev)
2068 {
2069         /*
2070          * 0x31 could mean we have to take some extra action and wait for
2071          * the next irq for some Type3 models, it will generate a new
2072          * irq and we can read new data from the device:
2073          *  - 0x5c and 0x5f requires 0xA0
2074          *  - 0x61 requires 0xB3
2075          */
2076         if (data_mask == 0x31) {
2077                 if (ev == 0x5c || ev == 0x5f)
2078                         sony_pic_call1(0xA0);
2079                 else if (ev == 0x61)
2080                         sony_pic_call1(0xB3);
2081                 return 0;
2082         }
2083         return 1;
2084 }
2085
2086 static void sony_pic_detect_device_type(struct sony_pic_dev *dev)
2087 {
2088         struct pci_dev *pcidev;
2089
2090         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
2091                         PCI_DEVICE_ID_INTEL_82371AB_3, NULL);
2092         if (pcidev) {
2093                 dev->model = SONYPI_DEVICE_TYPE1;
2094                 dev->evport_offset = SONYPI_TYPE1_OFFSET;
2095                 dev->event_types = type1_events;
2096                 goto out;
2097         }
2098
2099         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
2100                         PCI_DEVICE_ID_INTEL_ICH6_1, NULL);
2101         if (pcidev) {
2102                 dev->model = SONYPI_DEVICE_TYPE2;
2103                 dev->evport_offset = SONYPI_TYPE2_OFFSET;
2104                 dev->event_types = type2_events;
2105                 goto out;
2106         }
2107
2108         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
2109                         PCI_DEVICE_ID_INTEL_ICH7_1, NULL);
2110         if (pcidev) {
2111                 dev->model = SONYPI_DEVICE_TYPE3;
2112                 dev->handle_irq = type3_handle_irq;
2113                 dev->evport_offset = SONYPI_TYPE3_OFFSET;
2114                 dev->event_types = type3_events;
2115                 goto out;
2116         }
2117
2118         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
2119                         PCI_DEVICE_ID_INTEL_ICH8_4, NULL);
2120         if (pcidev) {
2121                 dev->model = SONYPI_DEVICE_TYPE3;
2122                 dev->handle_irq = type3_handle_irq;
2123                 dev->evport_offset = SONYPI_TYPE3_OFFSET;
2124                 dev->event_types = type3_events;
2125                 goto out;
2126         }
2127
2128         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
2129                         PCI_DEVICE_ID_INTEL_ICH9_1, NULL);
2130         if (pcidev) {
2131                 dev->model = SONYPI_DEVICE_TYPE3;
2132                 dev->handle_irq = type3_handle_irq;
2133                 dev->evport_offset = SONYPI_TYPE3_OFFSET;
2134                 dev->event_types = type3_events;
2135                 goto out;
2136         }
2137
2138         /* default */
2139         dev->model = SONYPI_DEVICE_TYPE2;
2140         dev->evport_offset = SONYPI_TYPE2_OFFSET;
2141         dev->event_types = type2_events;
2142
2143 out:
2144         if (pcidev)
2145                 pci_dev_put(pcidev);
2146
2147         pr_info(DRV_PFX "detected Type%d model\n",
2148                         dev->model == SONYPI_DEVICE_TYPE1 ? 1 :
2149                         dev->model == SONYPI_DEVICE_TYPE2 ? 2 : 3);
2150 }
2151
2152 /* camera tests and poweron/poweroff */
2153 #define SONYPI_CAMERA_PICTURE           5
2154 #define SONYPI_CAMERA_CONTROL           0x10
2155
2156 #define SONYPI_CAMERA_BRIGHTNESS                0
2157 #define SONYPI_CAMERA_CONTRAST                  1
2158 #define SONYPI_CAMERA_HUE                       2
2159 #define SONYPI_CAMERA_COLOR                     3
2160 #define SONYPI_CAMERA_SHARPNESS                 4
2161
2162 #define SONYPI_CAMERA_EXPOSURE_MASK             0xC
2163 #define SONYPI_CAMERA_WHITE_BALANCE_MASK        0x3
2164 #define SONYPI_CAMERA_PICTURE_MODE_MASK         0x30
2165 #define SONYPI_CAMERA_MUTE_MASK                 0x40
2166
2167 /* the rest don't need a loop until not 0xff */
2168 #define SONYPI_CAMERA_AGC                       6
2169 #define SONYPI_CAMERA_AGC_MASK                  0x30
2170 #define SONYPI_CAMERA_SHUTTER_MASK              0x7
2171
2172 #define SONYPI_CAMERA_SHUTDOWN_REQUEST          7
2173 #define SONYPI_CAMERA_CONTROL                   0x10
2174
2175 #define SONYPI_CAMERA_STATUS                    7
2176 #define SONYPI_CAMERA_STATUS_READY              0x2
2177 #define SONYPI_CAMERA_STATUS_POSITION           0x4
2178
2179 #define SONYPI_DIRECTION_BACKWARDS              0x4
2180
2181 #define SONYPI_CAMERA_REVISION                  8
2182 #define SONYPI_CAMERA_ROMVERSION                9
2183
2184 static int __sony_pic_camera_ready(void)
2185 {
2186         u8 v;
2187
2188         v = sony_pic_call2(0x8f, SONYPI_CAMERA_STATUS);
2189         return (v != 0xff && (v & SONYPI_CAMERA_STATUS_READY));
2190 }
2191
2192 static int __sony_pic_camera_off(void)
2193 {
2194         if (!camera) {
2195                 pr_warn(DRV_PFX "camera control not enabled\n");
2196                 return -ENODEV;
2197         }
2198
2199         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE,
2200                                 SONYPI_CAMERA_MUTE_MASK),
2201                         ITERATIONS_SHORT);
2202
2203         if (spic_dev.camera_power) {
2204                 sony_pic_call2(0x91, 0);
2205                 spic_dev.camera_power = 0;
2206         }
2207         return 0;
2208 }
2209
2210 static int __sony_pic_camera_on(void)
2211 {
2212         int i, j, x;
2213
2214         if (!camera) {
2215                 pr_warn(DRV_PFX "camera control not enabled\n");
2216                 return -ENODEV;
2217         }
2218
2219         if (spic_dev.camera_power)
2220                 return 0;
2221
2222         for (j = 5; j > 0; j--) {
2223
2224                 for (x = 0; x < 100 && sony_pic_call2(0x91, 0x1); x++)
2225                         msleep(10);
2226                 sony_pic_call1(0x93);
2227
2228                 for (i = 400; i > 0; i--) {
2229                         if (__sony_pic_camera_ready())
2230                                 break;
2231                         msleep(10);
2232                 }
2233                 if (i)
2234                         break;
2235         }
2236
2237         if (j == 0) {
2238                 pr_warn(DRV_PFX "failed to power on camera\n");
2239                 return -ENODEV;
2240         }
2241
2242         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTROL,
2243                                 0x5a),
2244                         ITERATIONS_SHORT);
2245
2246         spic_dev.camera_power = 1;
2247         return 0;
2248 }
2249
2250 /* External camera command (exported to the motion eye v4l driver) */
2251 int sony_pic_camera_command(int command, u8 value)
2252 {
2253         if (!camera)
2254                 return -EIO;
2255
2256         mutex_lock(&spic_dev.lock);
2257
2258         switch (command) {
2259         case SONY_PIC_COMMAND_SETCAMERA:
2260                 if (value)
2261                         __sony_pic_camera_on();
2262                 else
2263                         __sony_pic_camera_off();
2264                 break;
2265         case SONY_PIC_COMMAND_SETCAMERABRIGHTNESS:
2266                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_BRIGHTNESS, value),
2267                                 ITERATIONS_SHORT);
2268                 break;
2269         case SONY_PIC_COMMAND_SETCAMERACONTRAST:
2270                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTRAST, value),
2271                                 ITERATIONS_SHORT);
2272                 break;
2273         case SONY_PIC_COMMAND_SETCAMERAHUE:
2274                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_HUE, value),
2275                                 ITERATIONS_SHORT);
2276                 break;
2277         case SONY_PIC_COMMAND_SETCAMERACOLOR:
2278                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_COLOR, value),
2279                                 ITERATIONS_SHORT);
2280                 break;
2281         case SONY_PIC_COMMAND_SETCAMERASHARPNESS:
2282                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_SHARPNESS, value),
2283                                 ITERATIONS_SHORT);
2284                 break;
2285         case SONY_PIC_COMMAND_SETCAMERAPICTURE:
2286                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE, value),
2287                                 ITERATIONS_SHORT);
2288                 break;
2289         case SONY_PIC_COMMAND_SETCAMERAAGC:
2290                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_AGC, value),
2291                                 ITERATIONS_SHORT);
2292                 break;
2293         default:
2294                 pr_err(DRV_PFX "sony_pic_camera_command invalid: %d\n",
2295                        command);
2296                 break;
2297         }
2298         mutex_unlock(&spic_dev.lock);
2299         return 0;
2300 }
2301 EXPORT_SYMBOL(sony_pic_camera_command);
2302
2303 /* gprs/edge modem (SZ460N and SZ210P), thanks to Joshua Wise */
2304 static void __sony_pic_set_wwanpower(u8 state)
2305 {
2306         state = !!state;
2307         if (spic_dev.wwan_power == state)
2308                 return;
2309         sony_pic_call2(0xB0, state);
2310         sony_pic_call1(0x82);
2311         spic_dev.wwan_power = state;
2312 }
2313
2314 static ssize_t sony_pic_wwanpower_store(struct device *dev,
2315                 struct device_attribute *attr,
2316                 const char *buffer, size_t count)
2317 {
2318         unsigned long value;
2319         if (count > 31)
2320                 return -EINVAL;
2321
2322         value = simple_strtoul(buffer, NULL, 10);
2323         mutex_lock(&spic_dev.lock);
2324         __sony_pic_set_wwanpower(value);
2325         mutex_unlock(&spic_dev.lock);
2326
2327         return count;
2328 }
2329
2330 static ssize_t sony_pic_wwanpower_show(struct device *dev,
2331                 struct device_attribute *attr, char *buffer)
2332 {
2333         ssize_t count;
2334         mutex_lock(&spic_dev.lock);
2335         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.wwan_power);
2336         mutex_unlock(&spic_dev.lock);
2337         return count;
2338 }
2339
2340 /* bluetooth subsystem power state */
2341 static void __sony_pic_set_bluetoothpower(u8 state)
2342 {
2343         state = !!state;
2344         if (spic_dev.bluetooth_power == state)
2345                 return;
2346         sony_pic_call2(0x96, state);
2347         sony_pic_call1(0x82);
2348         spic_dev.bluetooth_power = state;
2349 }
2350
2351 static ssize_t sony_pic_bluetoothpower_store(struct device *dev,
2352                 struct device_attribute *attr,
2353                 const char *buffer, size_t count)
2354 {
2355         unsigned long value;
2356         if (count > 31)
2357                 return -EINVAL;
2358
2359         value = simple_strtoul(buffer, NULL, 10);
2360         mutex_lock(&spic_dev.lock);
2361         __sony_pic_set_bluetoothpower(value);
2362         mutex_unlock(&spic_dev.lock);
2363
2364         return count;
2365 }
2366
2367 static ssize_t sony_pic_bluetoothpower_show(struct device *dev,
2368                 struct device_attribute *attr, char *buffer)
2369 {
2370         ssize_t count = 0;
2371         mutex_lock(&spic_dev.lock);
2372         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.bluetooth_power);
2373         mutex_unlock(&spic_dev.lock);
2374         return count;
2375 }
2376
2377 /* fan speed */
2378 /* FAN0 information (reverse engineered from ACPI tables) */
2379 #define SONY_PIC_FAN0_STATUS    0x93
2380 static int sony_pic_set_fanspeed(unsigned long value)
2381 {
2382         return ec_write(SONY_PIC_FAN0_STATUS, value);
2383 }
2384
2385 static int sony_pic_get_fanspeed(u8 *value)
2386 {
2387         return ec_read(SONY_PIC_FAN0_STATUS, value);
2388 }
2389
2390 static ssize_t sony_pic_fanspeed_store(struct device *dev,
2391                 struct device_attribute *attr,
2392                 const char *buffer, size_t count)
2393 {
2394         unsigned long value;
2395         if (count > 31)
2396                 return -EINVAL;
2397
2398         value = simple_strtoul(buffer, NULL, 10);
2399         if (sony_pic_set_fanspeed(value))
2400                 return -EIO;
2401
2402         return count;
2403 }
2404
2405 static ssize_t sony_pic_fanspeed_show(struct device *dev,
2406                 struct device_attribute *attr, char *buffer)
2407 {
2408         u8 value = 0;
2409         if (sony_pic_get_fanspeed(&value))
2410                 return -EIO;
2411
2412         return snprintf(buffer, PAGE_SIZE, "%d\n", value);
2413 }
2414
2415 #define SPIC_ATTR(_name, _mode)                                 \
2416 struct device_attribute spic_attr_##_name = __ATTR(_name,       \
2417                 _mode, sony_pic_## _name ##_show,               \
2418                 sony_pic_## _name ##_store)
2419
2420 static SPIC_ATTR(bluetoothpower, 0644);
2421 static SPIC_ATTR(wwanpower, 0644);
2422 static SPIC_ATTR(fanspeed, 0644);
2423
2424 static struct attribute *spic_attributes[] = {
2425         &spic_attr_bluetoothpower.attr,
2426         &spic_attr_wwanpower.attr,
2427         &spic_attr_fanspeed.attr,
2428         NULL
2429 };
2430
2431 static struct attribute_group spic_attribute_group = {
2432         .attrs = spic_attributes
2433 };
2434
2435 /******** SONYPI compatibility **********/
2436 #ifdef CONFIG_SONYPI_COMPAT
2437
2438 /* battery / brightness / temperature  addresses */
2439 #define SONYPI_BAT_FLAGS        0x81
2440 #define SONYPI_LCD_LIGHT        0x96
2441 #define SONYPI_BAT1_PCTRM       0xa0
2442 #define SONYPI_BAT1_LEFT        0xa2
2443 #define SONYPI_BAT1_MAXRT       0xa4
2444 #define SONYPI_BAT2_PCTRM       0xa8
2445 #define SONYPI_BAT2_LEFT        0xaa
2446 #define SONYPI_BAT2_MAXRT       0xac
2447 #define SONYPI_BAT1_MAXTK       0xb0
2448 #define SONYPI_BAT1_FULL        0xb2
2449 #define SONYPI_BAT2_MAXTK       0xb8
2450 #define SONYPI_BAT2_FULL        0xba
2451 #define SONYPI_TEMP_STATUS      0xC1
2452
2453 struct sonypi_compat_s {
2454         struct fasync_struct    *fifo_async;
2455         struct kfifo            fifo;
2456         spinlock_t              fifo_lock;
2457         wait_queue_head_t       fifo_proc_list;
2458         atomic_t                open_count;
2459 };
2460 static struct sonypi_compat_s sonypi_compat = {
2461         .open_count = ATOMIC_INIT(0),
2462 };
2463
2464 static int sonypi_misc_fasync(int fd, struct file *filp, int on)
2465 {
2466         return fasync_helper(fd, filp, on, &sonypi_compat.fifo_async);
2467 }
2468
2469 static int sonypi_misc_release(struct inode *inode, struct file *file)
2470 {
2471         atomic_dec(&sonypi_compat.open_count);
2472         return 0;
2473 }
2474
2475 static int sonypi_misc_open(struct inode *inode, struct file *file)
2476 {
2477         /* Flush input queue on first open */
2478         unsigned long flags;
2479
2480         spin_lock_irqsave(&sonypi_compat.fifo_lock, flags);
2481
2482         if (atomic_inc_return(&sonypi_compat.open_count) == 1)
2483                 kfifo_reset(&sonypi_compat.fifo);
2484
2485         spin_unlock_irqrestore(&sonypi_compat.fifo_lock, flags);
2486
2487         return 0;
2488 }
2489
2490 static ssize_t sonypi_misc_read(struct file *file, char __user *buf,
2491                                 size_t count, loff_t *pos)
2492 {
2493         ssize_t ret;
2494         unsigned char c;
2495
2496         if ((kfifo_len(&sonypi_compat.fifo) == 0) &&
2497             (file->f_flags & O_NONBLOCK))
2498                 return -EAGAIN;
2499
2500         ret = wait_event_interruptible(sonypi_compat.fifo_proc_list,
2501                                        kfifo_len(&sonypi_compat.fifo) != 0);
2502         if (ret)
2503                 return ret;
2504
2505         while (ret < count &&
2506                (kfifo_out_locked(&sonypi_compat.fifo, &c, sizeof(c),
2507                           &sonypi_compat.fifo_lock) == sizeof(c))) {
2508                 if (put_user(c, buf++))
2509                         return -EFAULT;
2510                 ret++;
2511         }
2512
2513         if (ret > 0) {
2514                 struct inode *inode = file->f_path.dentry->d_inode;
2515                 inode->i_atime = current_fs_time(inode->i_sb);
2516         }
2517
2518         return ret;
2519 }
2520
2521 static unsigned int sonypi_misc_poll(struct file *file, poll_table *wait)
2522 {
2523         poll_wait(file, &sonypi_compat.fifo_proc_list, wait);
2524         if (kfifo_len(&sonypi_compat.fifo))
2525                 return POLLIN | POLLRDNORM;
2526         return 0;
2527 }
2528
2529 static int ec_read16(u8 addr, u16 *value)
2530 {
2531         u8 val_lb, val_hb;
2532         if (ec_read(addr, &val_lb))
2533                 return -1;
2534         if (ec_read(addr + 1, &val_hb))
2535                 return -1;
2536         *value = val_lb | (val_hb << 8);
2537         return 0;
2538 }
2539
2540 static long sonypi_misc_ioctl(struct file *fp, unsigned int cmd,
2541                                                         unsigned long arg)
2542 {
2543         int ret = 0;
2544         void __user *argp = (void __user *)arg;
2545         u8 val8;
2546         u16 val16;
2547         int value;
2548
2549         mutex_lock(&spic_dev.lock);
2550         switch (cmd) {
2551         case SONYPI_IOCGBRT:
2552                 if (sony_backlight_device == NULL) {
2553                         ret = -EIO;
2554                         break;
2555                 }
2556                 if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value)) {
2557                         ret = -EIO;
2558                         break;
2559                 }
2560                 val8 = ((value & 0xff) - 1) << 5;
2561                 if (copy_to_user(argp, &val8, sizeof(val8)))
2562                                 ret = -EFAULT;
2563                 break;
2564         case SONYPI_IOCSBRT:
2565                 if (sony_backlight_device == NULL) {
2566                         ret = -EIO;
2567                         break;
2568                 }
2569                 if (copy_from_user(&val8, argp, sizeof(val8))) {
2570                         ret = -EFAULT;
2571                         break;
2572                 }
2573                 if (acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
2574                                 (val8 >> 5) + 1, NULL)) {
2575                         ret = -EIO;
2576                         break;
2577                 }
2578                 /* sync the backlight device status */
2579                 sony_backlight_device->props.brightness =
2580                     sony_backlight_get_brightness(sony_backlight_device);
2581                 break;
2582         case SONYPI_IOCGBAT1CAP:
2583                 if (ec_read16(SONYPI_BAT1_FULL, &val16)) {
2584                         ret = -EIO;
2585                         break;
2586                 }
2587                 if (copy_to_user(argp, &val16, sizeof(val16)))
2588                         ret = -EFAULT;
2589                 break;
2590         case SONYPI_IOCGBAT1REM:
2591                 if (ec_read16(SONYPI_BAT1_LEFT, &val16)) {
2592                         ret = -EIO;
2593                         break;
2594                 }
2595                 if (copy_to_user(argp, &val16, sizeof(val16)))
2596                         ret = -EFAULT;
2597                 break;
2598         case SONYPI_IOCGBAT2CAP:
2599                 if (ec_read16(SONYPI_BAT2_FULL, &val16)) {
2600                         ret = -EIO;
2601                         break;
2602                 }
2603                 if (copy_to_user(argp, &val16, sizeof(val16)))
2604                         ret = -EFAULT;
2605                 break;
2606         case SONYPI_IOCGBAT2REM:
2607                 if (ec_read16(SONYPI_BAT2_LEFT, &val16)) {
2608                         ret = -EIO;
2609                         break;
2610                 }
2611                 if (copy_to_user(argp, &val16, sizeof(val16)))
2612                         ret = -EFAULT;
2613                 break;
2614         case SONYPI_IOCGBATFLAGS:
2615                 if (ec_read(SONYPI_BAT_FLAGS, &val8)) {
2616                         ret = -EIO;
2617                         break;
2618                 }
2619                 val8 &= 0x07;
2620                 if (copy_to_user(argp, &val8, sizeof(val8)))
2621                         ret = -EFAULT;
2622                 break;
2623         case SONYPI_IOCGBLUE:
2624                 val8 = spic_dev.bluetooth_power;
2625                 if (copy_to_user(argp, &val8, sizeof(val8)))
2626                         ret = -EFAULT;
2627                 break;
2628         case SONYPI_IOCSBLUE:
2629                 if (copy_from_user(&val8, argp, sizeof(val8))) {
2630                         ret = -EFAULT;
2631                         break;
2632                 }
2633                 __sony_pic_set_bluetoothpower(val8);
2634                 break;
2635         /* FAN Controls */
2636         case SONYPI_IOCGFAN:
2637                 if (sony_pic_get_fanspeed(&val8)) {
2638                         ret = -EIO;
2639                         break;
2640                 }
2641                 if (copy_to_user(argp, &val8, sizeof(val8)))
2642                         ret = -EFAULT;
2643                 break;
2644         case SONYPI_IOCSFAN:
2645                 if (copy_from_user(&val8, argp, sizeof(val8))) {
2646                         ret = -EFAULT;
2647                         break;
2648                 }
2649                 if (sony_pic_set_fanspeed(val8))
2650                         ret = -EIO;
2651                 break;
2652         /* GET Temperature (useful under APM) */
2653         case SONYPI_IOCGTEMP:
2654                 if (ec_read(SONYPI_TEMP_STATUS, &val8)) {
2655                         ret = -EIO;
2656                         break;
2657                 }
2658                 if (copy_to_user(argp, &val8, sizeof(val8)))
2659                         ret = -EFAULT;
2660                 break;
2661         default:
2662                 ret = -EINVAL;
2663         }
2664         mutex_unlock(&spic_dev.lock);
2665         return ret;
2666 }
2667
2668 static const struct file_operations sonypi_misc_fops = {
2669         .owner          = THIS_MODULE,
2670         .read           = sonypi_misc_read,
2671         .poll           = sonypi_misc_poll,
2672         .open           = sonypi_misc_open,
2673         .release        = sonypi_misc_release,
2674         .fasync         = sonypi_misc_fasync,
2675         .unlocked_ioctl = sonypi_misc_ioctl,
2676         .llseek         = noop_llseek,
2677 };
2678
2679 static struct miscdevice sonypi_misc_device = {
2680         .minor          = MISC_DYNAMIC_MINOR,
2681         .name           = "sonypi",
2682         .fops           = &sonypi_misc_fops,
2683 };
2684
2685 static void sonypi_compat_report_event(u8 event)
2686 {
2687         kfifo_in_locked(&sonypi_compat.fifo, (unsigned char *)&event,
2688                         sizeof(event), &sonypi_compat.fifo_lock);
2689         kill_fasync(&sonypi_compat.fifo_async, SIGIO, POLL_IN);
2690         wake_up_interruptible(&sonypi_compat.fifo_proc_list);
2691 }
2692
2693 static int sonypi_compat_init(void)
2694 {
2695         int error;
2696
2697         spin_lock_init(&sonypi_compat.fifo_lock);
2698         error =
2699          kfifo_alloc(&sonypi_compat.fifo, SONY_LAPTOP_BUF_SIZE, GFP_KERNEL);
2700         if (error) {
2701                 pr_err(DRV_PFX "kfifo_alloc failed\n");
2702                 return error;
2703         }
2704
2705         init_waitqueue_head(&sonypi_compat.fifo_proc_list);
2706
2707         if (minor != -1)
2708                 sonypi_misc_device.minor = minor;
2709         error = misc_register(&sonypi_misc_device);
2710         if (error) {
2711                 pr_err(DRV_PFX "misc_register failed\n");
2712                 goto err_free_kfifo;
2713         }
2714         if (minor == -1)
2715                 pr_info(DRV_PFX "device allocated minor is %d\n",
2716                        sonypi_misc_device.minor);
2717
2718         return 0;
2719
2720 err_free_kfifo:
2721         kfifo_free(&sonypi_compat.fifo);
2722         return error;
2723 }
2724
2725 static void sonypi_compat_exit(void)
2726 {
2727         misc_deregister(&sonypi_misc_device);
2728         kfifo_free(&sonypi_compat.fifo);
2729 }
2730 #else
2731 static int sonypi_compat_init(void) { return 0; }
2732 static void sonypi_compat_exit(void) { }
2733 static void sonypi_compat_report_event(u8 event) { }
2734 #endif /* CONFIG_SONYPI_COMPAT */
2735
2736 /*
2737  * ACPI callbacks
2738  */
2739 static acpi_status
2740 sony_pic_read_possible_resource(struct acpi_resource *resource, void *context)
2741 {
2742         u32 i;
2743         struct sony_pic_dev *dev = (struct sony_pic_dev *)context;
2744
2745         switch (resource->type) {
2746         case ACPI_RESOURCE_TYPE_START_DEPENDENT:
2747                 {
2748                         /* start IO enumeration */
2749                         struct sony_pic_ioport *ioport = kzalloc(sizeof(*ioport), GFP_KERNEL);
2750                         if (!ioport)
2751                                 return AE_ERROR;
2752
2753                         list_add(&ioport->list, &dev->ioports);
2754                         return AE_OK;
2755                 }
2756
2757         case ACPI_RESOURCE_TYPE_END_DEPENDENT:
2758                 /* end IO enumeration */
2759                 return AE_OK;
2760
2761         case ACPI_RESOURCE_TYPE_IRQ:
2762                 {
2763                         struct acpi_resource_irq *p = &resource->data.irq;
2764                         struct sony_pic_irq *interrupt = NULL;
2765                         if (!p || !p->interrupt_count) {
2766                                 /*
2767                                  * IRQ descriptors may have no IRQ# bits set,
2768                                  * particularly those those w/ _STA disabled
2769                                  */
2770                                 dprintk("Blank IRQ resource\n");
2771                                 return AE_OK;
2772                         }
2773                         for (i = 0; i < p->interrupt_count; i++) {
2774                                 if (!p->interrupts[i]) {
2775                                         pr_warn(DRV_PFX "Invalid IRQ %d\n",
2776                                                         p->interrupts[i]);
2777                                         continue;
2778                                 }
2779                                 interrupt = kzalloc(sizeof(*interrupt),
2780                                                 GFP_KERNEL);
2781                                 if (!interrupt)
2782                                         return AE_ERROR;
2783
2784                                 list_add(&interrupt->list, &dev->interrupts);
2785                                 interrupt->irq.triggering = p->triggering;
2786                                 interrupt->irq.polarity = p->polarity;
2787                                 interrupt->irq.sharable = p->sharable;
2788                                 interrupt->irq.interrupt_count = 1;
2789                                 interrupt->irq.interrupts[0] = p->interrupts[i];
2790                         }
2791                         return AE_OK;
2792                 }
2793         case ACPI_RESOURCE_TYPE_IO:
2794                 {
2795                         struct acpi_resource_io *io = &resource->data.io;
2796                         struct sony_pic_ioport *ioport =
2797                                 list_first_entry(&dev->ioports, struct sony_pic_ioport, list);
2798                         if (!io) {
2799                                 dprintk("Blank IO resource\n");
2800                                 return AE_OK;
2801                         }
2802
2803                         if (!ioport->io1.minimum) {
2804                                 memcpy(&ioport->io1, io, sizeof(*io));
2805                                 dprintk("IO1 at 0x%.4x (0x%.2x)\n", ioport->io1.minimum,
2806                                                 ioport->io1.address_length);
2807                         }
2808                         else if (!ioport->io2.minimum) {
2809                                 memcpy(&ioport->io2, io, sizeof(*io));
2810                                 dprintk("IO2 at 0x%.4x (0x%.2x)\n", ioport->io2.minimum,
2811                                                 ioport->io2.address_length);
2812                         }
2813                         else {
2814                                 pr_err(DRV_PFX "Unknown SPIC Type, more than 2 IO Ports\n");
2815                                 return AE_ERROR;
2816                         }
2817                         return AE_OK;
2818                 }
2819         default:
2820                 dprintk("Resource %d isn't an IRQ nor an IO port\n",
2821                                 resource->type);
2822
2823         case ACPI_RESOURCE_TYPE_END_TAG:
2824                 return AE_OK;
2825         }
2826         return AE_CTRL_TERMINATE;
2827 }
2828
2829 static int sony_pic_possible_resources(struct acpi_device *device)
2830 {
2831         int result = 0;
2832         acpi_status status = AE_OK;
2833
2834         if (!device)
2835                 return -EINVAL;
2836
2837         /* get device status */
2838         /* see acpi_pci_link_get_current acpi_pci_link_get_possible */
2839         dprintk("Evaluating _STA\n");
2840         result = acpi_bus_get_status(device);
2841         if (result) {
2842                 pr_warn(DRV_PFX "Unable to read status\n");
2843                 goto end;
2844         }
2845
2846         if (!device->status.enabled)
2847                 dprintk("Device disabled\n");
2848         else
2849                 dprintk("Device enabled\n");
2850
2851         /*
2852          * Query and parse 'method'
2853          */
2854         dprintk("Evaluating %s\n", METHOD_NAME__PRS);
2855         status = acpi_walk_resources(device->handle, METHOD_NAME__PRS,
2856                         sony_pic_read_possible_resource, &spic_dev);
2857         if (ACPI_FAILURE(status)) {
2858                 pr_warn(DRV_PFX "Failure evaluating %s\n",
2859                                 METHOD_NAME__PRS);
2860                 result = -ENODEV;
2861         }
2862 end:
2863         return result;
2864 }
2865
2866 /*
2867  *  Disable the spic device by calling its _DIS method
2868  */
2869 static int sony_pic_disable(struct acpi_device *device)
2870 {
2871         acpi_status ret = acpi_evaluate_object(device->handle, "_DIS", NULL,
2872                                                NULL);
2873
2874         if (ACPI_FAILURE(ret) && ret != AE_NOT_FOUND)
2875                 return -ENXIO;
2876
2877         dprintk("Device disabled\n");
2878         return 0;
2879 }
2880
2881
2882 /*
2883  *  Based on drivers/acpi/pci_link.c:acpi_pci_link_set
2884  *
2885  *  Call _SRS to set current resources
2886  */
2887 static int sony_pic_enable(struct acpi_device *device,
2888                 struct sony_pic_ioport *ioport, struct sony_pic_irq *irq)
2889 {
2890         acpi_status status;
2891         int result = 0;
2892         /* Type 1 resource layout is:
2893          *    IO
2894          *    IO
2895          *    IRQNoFlags
2896          *    End
2897          *
2898          * Type 2 and 3 resource layout is:
2899          *    IO
2900          *    IRQNoFlags
2901          *    End
2902          */
2903         struct {
2904                 struct acpi_resource res1;
2905                 struct acpi_resource res2;
2906                 struct acpi_resource res3;
2907                 struct acpi_resource res4;
2908         } *resource;
2909         struct acpi_buffer buffer = { 0, NULL };
2910
2911         if (!ioport || !irq)
2912                 return -EINVAL;
2913
2914         /* init acpi_buffer */
2915         resource = kzalloc(sizeof(*resource) + 1, GFP_KERNEL);
2916         if (!resource)
2917                 return -ENOMEM;
2918
2919         buffer.length = sizeof(*resource) + 1;
2920         buffer.pointer = resource;
2921
2922         /* setup Type 1 resources */
2923         if (spic_dev.model == SONYPI_DEVICE_TYPE1) {
2924
2925                 /* setup io resources */
2926                 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
2927                 resource->res1.length = sizeof(struct acpi_resource);
2928                 memcpy(&resource->res1.data.io, &ioport->io1,
2929                                 sizeof(struct acpi_resource_io));
2930
2931                 resource->res2.type = ACPI_RESOURCE_TYPE_IO;
2932                 resource->res2.length = sizeof(struct acpi_resource);
2933                 memcpy(&resource->res2.data.io, &ioport->io2,
2934                                 sizeof(struct acpi_resource_io));
2935
2936                 /* setup irq resource */
2937                 resource->res3.type = ACPI_RESOURCE_TYPE_IRQ;
2938                 resource->res3.length = sizeof(struct acpi_resource);
2939                 memcpy(&resource->res3.data.irq, &irq->irq,
2940                                 sizeof(struct acpi_resource_irq));
2941                 /* we requested a shared irq */
2942                 resource->res3.data.irq.sharable = ACPI_SHARED;
2943
2944                 resource->res4.type = ACPI_RESOURCE_TYPE_END_TAG;
2945
2946         }
2947         /* setup Type 2/3 resources */
2948         else {
2949                 /* setup io resource */
2950                 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
2951                 resource->res1.length = sizeof(struct acpi_resource);
2952                 memcpy(&resource->res1.data.io, &ioport->io1,
2953                                 sizeof(struct acpi_resource_io));
2954
2955                 /* setup irq resource */
2956                 resource->res2.type = ACPI_RESOURCE_TYPE_IRQ;
2957                 resource->res2.length = sizeof(struct acpi_resource);
2958                 memcpy(&resource->res2.data.irq, &irq->irq,
2959                                 sizeof(struct acpi_resource_irq));
2960                 /* we requested a shared irq */
2961                 resource->res2.data.irq.sharable = ACPI_SHARED;
2962
2963                 resource->res3.type = ACPI_RESOURCE_TYPE_END_TAG;
2964         }
2965
2966         /* Attempt to set the resource */
2967         dprintk("Evaluating _SRS\n");
2968         status = acpi_set_current_resources(device->handle, &buffer);
2969
2970         /* check for total failure */
2971         if (ACPI_FAILURE(status)) {
2972                 pr_err(DRV_PFX "Error evaluating _SRS\n");
2973                 result = -ENODEV;
2974                 goto end;
2975         }
2976
2977         /* Necessary device initializations calls (from sonypi) */
2978         sony_pic_call1(0x82);
2979         sony_pic_call2(0x81, 0xff);
2980         sony_pic_call1(compat ? 0x92 : 0x82);
2981
2982 end:
2983         kfree(resource);
2984         return result;
2985 }
2986
2987 /*****************
2988  *
2989  * ISR: some event is available
2990  *
2991  *****************/
2992 static irqreturn_t sony_pic_irq(int irq, void *dev_id)
2993 {
2994         int i, j;
2995         u8 ev = 0;
2996         u8 data_mask = 0;
2997         u8 device_event = 0;
2998
2999         struct sony_pic_dev *dev = (struct sony_pic_dev *) dev_id;
3000
3001         ev = inb_p(dev->cur_ioport->io1.minimum);
3002         if (dev->cur_ioport->io2.minimum)
3003                 data_mask = inb_p(dev->cur_ioport->io2.minimum);
3004         else
3005                 data_mask = inb_p(dev->cur_ioport->io1.minimum +
3006                                 dev->evport_offset);
3007
3008         dprintk("event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
3009                         ev, data_mask, dev->cur_ioport->io1.minimum,
3010                         dev->evport_offset);
3011
3012         if (ev == 0x00 || ev == 0xff)
3013                 return IRQ_HANDLED;
3014
3015         for (i = 0; dev->event_types[i].mask; i++) {
3016
3017                 if ((data_mask & dev->event_types[i].data) !=
3018                     dev->event_types[i].data)
3019                         continue;
3020
3021                 if (!(mask & dev->event_types[i].mask))
3022                         continue;
3023
3024                 for (j = 0; dev->event_types[i].events[j].event; j++) {
3025                         if (ev == dev->event_types[i].events[j].data) {
3026                                 device_event =
3027                                         dev->event_types[i].events[j].event;
3028                                 /* some events may require ignoring */
3029                                 if (!device_event)
3030                                         return IRQ_HANDLED;
3031                                 goto found;
3032                         }
3033                 }
3034         }
3035         /* Still not able to decode the event try to pass
3036          * it over to the minidriver
3037          */
3038         if (dev->handle_irq && dev->handle_irq(data_mask, ev) == 0)
3039                 return IRQ_HANDLED;
3040
3041         dprintk("unknown event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
3042                         ev, data_mask, dev->cur_ioport->io1.minimum,
3043                         dev->evport_offset);
3044         return IRQ_HANDLED;
3045
3046 found:
3047         sony_laptop_report_input_event(device_event);
3048         acpi_bus_generate_proc_event(dev->acpi_dev, 1, device_event);
3049         sonypi_compat_report_event(device_event);
3050         return IRQ_HANDLED;
3051 }
3052
3053 /*****************
3054  *
3055  *  ACPI driver
3056  *
3057  *****************/
3058 static int sony_pic_remove(struct acpi_device *device, int type)
3059 {
3060         struct sony_pic_ioport *io, *tmp_io;
3061         struct sony_pic_irq *irq, *tmp_irq;
3062
3063         if (sony_pic_disable(device)) {
3064                 pr_err(DRV_PFX "Couldn't disable device.\n");
3065                 return -ENXIO;
3066         }
3067
3068         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
3069         release_region(spic_dev.cur_ioport->io1.minimum,
3070                         spic_dev.cur_ioport->io1.address_length);
3071         if (spic_dev.cur_ioport->io2.minimum)
3072                 release_region(spic_dev.cur_ioport->io2.minimum,
3073                                 spic_dev.cur_ioport->io2.address_length);
3074
3075         sonypi_compat_exit();
3076
3077         sony_laptop_remove_input();
3078
3079         /* pf attrs */
3080         sysfs_remove_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
3081         sony_pf_remove();
3082
3083         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
3084                 list_del(&io->list);
3085                 kfree(io);
3086         }
3087         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
3088                 list_del(&irq->list);
3089                 kfree(irq);
3090         }
3091         spic_dev.cur_ioport = NULL;
3092         spic_dev.cur_irq = NULL;
3093
3094         dprintk(SONY_PIC_DRIVER_NAME " removed.\n");
3095         return 0;
3096 }
3097
3098 static int sony_pic_add(struct acpi_device *device)
3099 {
3100         int result;
3101         struct sony_pic_ioport *io, *tmp_io;
3102         struct sony_pic_irq *irq, *tmp_irq;
3103
3104         pr_info(DRV_PFX "%s v%s.\n", SONY_PIC_DRIVER_NAME,
3105                         SONY_LAPTOP_DRIVER_VERSION);
3106
3107         spic_dev.acpi_dev = device;
3108         strcpy(acpi_device_class(device), "sony/hotkey");
3109         sony_pic_detect_device_type(&spic_dev);
3110         mutex_init(&spic_dev.lock);
3111
3112         /* read _PRS resources */
3113         result = sony_pic_possible_resources(device);
3114         if (result) {
3115                 pr_err(DRV_PFX "Unable to read possible resources.\n");
3116                 goto err_free_resources;
3117         }
3118
3119         /* setup input devices and helper fifo */
3120         result = sony_laptop_setup_input(device);
3121         if (result) {
3122                 pr_err(DRV_PFX "Unable to create input devices.\n");
3123                 goto err_free_resources;
3124         }
3125
3126         if (sonypi_compat_init())
3127                 goto err_remove_input;
3128
3129         /* request io port */
3130         list_for_each_entry_reverse(io, &spic_dev.ioports, list) {
3131                 if (request_region(io->io1.minimum, io->io1.address_length,
3132                                         "Sony Programmable I/O Device")) {
3133                         dprintk("I/O port1: 0x%.4x (0x%.4x) + 0x%.2x\n",
3134                                         io->io1.minimum, io->io1.maximum,
3135                                         io->io1.address_length);
3136                         /* Type 1 have 2 ioports */
3137                         if (io->io2.minimum) {
3138                                 if (request_region(io->io2.minimum,
3139                                                 io->io2.address_length,
3140                                                 "Sony Programmable I/O Device")) {
3141                                         dprintk("I/O port2: 0x%.4x (0x%.4x) + 0x%.2x\n",
3142                                                         io->io2.minimum, io->io2.maximum,
3143                                                         io->io2.address_length);
3144                                         spic_dev.cur_ioport = io;
3145                                         break;
3146                                 }
3147                                 else {
3148                                         dprintk("Unable to get I/O port2: "
3149                                                         "0x%.4x (0x%.4x) + 0x%.2x\n",
3150                                                         io->io2.minimum, io->io2.maximum,
3151                                                         io->io2.address_length);
3152                                         release_region(io->io1.minimum,
3153                                                         io->io1.address_length);
3154                                 }
3155                         }
3156                         else {
3157                                 spic_dev.cur_ioport = io;
3158                                 break;
3159                         }
3160                 }
3161         }
3162         if (!spic_dev.cur_ioport) {
3163                 pr_err(DRV_PFX "Failed to request_region.\n");
3164                 result = -ENODEV;
3165                 goto err_remove_compat;
3166         }
3167
3168         /* request IRQ */
3169         list_for_each_entry_reverse(irq, &spic_dev.interrupts, list) {
3170                 if (!request_irq(irq->irq.interrupts[0], sony_pic_irq,
3171                                         IRQF_DISABLED, "sony-laptop", &spic_dev)) {
3172                         dprintk("IRQ: %d - triggering: %d - "
3173                                         "polarity: %d - shr: %d\n",
3174                                         irq->irq.interrupts[0],
3175                                         irq->irq.triggering,
3176                                         irq->irq.polarity,
3177                                         irq->irq.sharable);
3178                         spic_dev.cur_irq = irq;
3179                         break;
3180                 }
3181         }
3182         if (!spic_dev.cur_irq) {
3183                 pr_err(DRV_PFX "Failed to request_irq.\n");
3184                 result = -ENODEV;
3185                 goto err_release_region;
3186         }
3187
3188         /* set resource status _SRS */
3189         result = sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
3190         if (result) {
3191                 pr_err(DRV_PFX "Couldn't enable device.\n");
3192                 goto err_free_irq;
3193         }
3194
3195         spic_dev.bluetooth_power = -1;
3196         /* create device attributes */
3197         result = sony_pf_add();
3198         if (result)
3199                 goto err_disable_device;
3200
3201         result = sysfs_create_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
3202         if (result)
3203                 goto err_remove_pf;
3204
3205         return 0;
3206
3207 err_remove_pf:
3208         sony_pf_remove();
3209
3210 err_disable_device:
3211         sony_pic_disable(device);
3212
3213 err_free_irq:
3214         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
3215
3216 err_release_region:
3217         release_region(spic_dev.cur_ioport->io1.minimum,
3218                         spic_dev.cur_ioport->io1.address_length);
3219         if (spic_dev.cur_ioport->io2.minimum)
3220                 release_region(spic_dev.cur_ioport->io2.minimum,
3221                                 spic_dev.cur_ioport->io2.address_length);
3222
3223 err_remove_compat:
3224         sonypi_compat_exit();
3225
3226 err_remove_input:
3227         sony_laptop_remove_input();
3228
3229 err_free_resources:
3230         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
3231                 list_del(&io->list);
3232                 kfree(io);
3233         }
3234         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
3235                 list_del(&irq->list);
3236                 kfree(irq);
3237         }
3238         spic_dev.cur_ioport = NULL;
3239         spic_dev.cur_irq = NULL;
3240
3241         return result;
3242 }
3243
3244 static int sony_pic_suspend(struct acpi_device *device, pm_message_t state)
3245 {
3246         if (sony_pic_disable(device))
3247                 return -ENXIO;
3248         return 0;
3249 }
3250
3251 static int sony_pic_resume(struct acpi_device *device)
3252 {
3253         sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
3254         return 0;
3255 }
3256
3257 static const struct acpi_device_id sony_pic_device_ids[] = {
3258         {SONY_PIC_HID, 0},
3259         {"", 0},
3260 };
3261
3262 static struct acpi_driver sony_pic_driver = {
3263         .name = SONY_PIC_DRIVER_NAME,
3264         .class = SONY_PIC_CLASS,
3265         .ids = sony_pic_device_ids,
3266         .owner = THIS_MODULE,
3267         .ops = {
3268                 .add = sony_pic_add,
3269                 .remove = sony_pic_remove,
3270                 .suspend = sony_pic_suspend,
3271                 .resume = sony_pic_resume,
3272                 },
3273 };
3274
3275 static struct dmi_system_id __initdata sonypi_dmi_table[] = {
3276         {
3277                 .ident = "Sony Vaio",
3278                 .matches = {
3279                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
3280                         DMI_MATCH(DMI_PRODUCT_NAME, "PCG-"),
3281                 },
3282         },
3283         {
3284                 .ident = "Sony Vaio",
3285                 .matches = {
3286                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
3287                         DMI_MATCH(DMI_PRODUCT_NAME, "VGN-"),
3288                 },
3289         },
3290         { }
3291 };
3292
3293 static int __init sony_laptop_init(void)
3294 {
3295         int result;
3296
3297         if (!no_spic && dmi_check_system(sonypi_dmi_table)) {
3298                 result = acpi_bus_register_driver(&sony_pic_driver);
3299                 if (result) {
3300                         pr_err(DRV_PFX "Unable to register SPIC driver.");
3301                         goto out;
3302                 }
3303                 spic_drv_registered = 1;
3304         }
3305
3306         result = acpi_bus_register_driver(&sony_nc_driver);
3307         if (result) {
3308                 pr_err(DRV_PFX "Unable to register SNC driver.");
3309                 goto out_unregister_pic;
3310         }
3311
3312         return 0;
3313
3314 out_unregister_pic:
3315         if (spic_drv_registered)
3316                 acpi_bus_unregister_driver(&sony_pic_driver);
3317 out:
3318         return result;
3319 }
3320
3321 static void __exit sony_laptop_exit(void)
3322 {
3323         acpi_bus_unregister_driver(&sony_nc_driver);
3324         if (spic_drv_registered)
3325                 acpi_bus_unregister_driver(&sony_pic_driver);
3326 }
3327
3328 module_init(sony_laptop_init);
3329 module_exit(sony_laptop_exit);