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 static void sony_nc_kbd_backlight_resume(void);
 142
 143 enum sony_nc_rfkill {
 144         SONY_WIFI,
 145         SONY_BLUETOOTH,
 146         SONY_WWAN,
 147         SONY_WIMAX,
 148         N_SONY_RFKILL,
 149 };
 150
 151 static int sony_rfkill_handle;
 152 static struct rfkill *sony_rfkill_devices[N_SONY_RFKILL];
 153 static int sony_rfkill_address[N_SONY_RFKILL] = {0x300, 0x500, 0x700, 0x900};
 154 static void sony_nc_rfkill_update(void);
 155
 156 /*********** Input Devices ***********/
 157
 158 #define SONY_LAPTOP_BUF_SIZE    128
 159 struct sony_laptop_input_s {
 160         atomic_t                users;
 161         struct input_dev        *jog_dev;
 162         struct input_dev        *key_dev;
 163         struct kfifo            fifo;
 164         spinlock_t              fifo_lock;
 165         struct timer_list       release_key_timer;
 166 };
 167
 168 static struct sony_laptop_input_s sony_laptop_input = {
 169         .users = ATOMIC_INIT(0),
 170 };
 171
 172 struct sony_laptop_keypress {
 173         struct input_dev *dev;
 174         int key;
 175 };
 176
 177 /* Correspondance table between sonypi events
 178  * and input layer indexes in the keymap
 179  */
 180 static int sony_laptop_input_index[] = {
 181         -1,     /*  0 no event */
 182         -1,     /*  1 SONYPI_EVENT_JOGDIAL_DOWN */
 183         -1,     /*  2 SONYPI_EVENT_JOGDIAL_UP */
 184         -1,     /*  3 SONYPI_EVENT_JOGDIAL_DOWN_PRESSED */
 185         -1,     /*  4 SONYPI_EVENT_JOGDIAL_UP_PRESSED */
 186         -1,     /*  5 SONYPI_EVENT_JOGDIAL_PRESSED */
 187         -1,     /*  6 SONYPI_EVENT_JOGDIAL_RELEASED */
 188          0,     /*  7 SONYPI_EVENT_CAPTURE_PRESSED */
 189          1,     /*  8 SONYPI_EVENT_CAPTURE_RELEASED */
 190          2,     /*  9 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
 191          3,     /* 10 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
 192          4,     /* 11 SONYPI_EVENT_FNKEY_ESC */
 193          5,     /* 12 SONYPI_EVENT_FNKEY_F1 */
 194          6,     /* 13 SONYPI_EVENT_FNKEY_F2 */
 195          7,     /* 14 SONYPI_EVENT_FNKEY_F3 */
 196          8,     /* 15 SONYPI_EVENT_FNKEY_F4 */
 197          9,     /* 16 SONYPI_EVENT_FNKEY_F5 */
 198         10,     /* 17 SONYPI_EVENT_FNKEY_F6 */
 199         11,     /* 18 SONYPI_EVENT_FNKEY_F7 */
 200         12,     /* 19 SONYPI_EVENT_FNKEY_F8 */
 201         13,     /* 20 SONYPI_EVENT_FNKEY_F9 */
 202         14,     /* 21 SONYPI_EVENT_FNKEY_F10 */
 203         15,     /* 22 SONYPI_EVENT_FNKEY_F11 */
 204         16,     /* 23 SONYPI_EVENT_FNKEY_F12 */
 205         17,     /* 24 SONYPI_EVENT_FNKEY_1 */
 206         18,     /* 25 SONYPI_EVENT_FNKEY_2 */
 207         19,     /* 26 SONYPI_EVENT_FNKEY_D */
 208         20,     /* 27 SONYPI_EVENT_FNKEY_E */
 209         21,     /* 28 SONYPI_EVENT_FNKEY_F */
 210         22,     /* 29 SONYPI_EVENT_FNKEY_S */
 211         23,     /* 30 SONYPI_EVENT_FNKEY_B */
 212         24,     /* 31 SONYPI_EVENT_BLUETOOTH_PRESSED */
 213         25,     /* 32 SONYPI_EVENT_PKEY_P1 */
 214         26,     /* 33 SONYPI_EVENT_PKEY_P2 */
 215         27,     /* 34 SONYPI_EVENT_PKEY_P3 */
 216         28,     /* 35 SONYPI_EVENT_BACK_PRESSED */
 217         -1,     /* 36 SONYPI_EVENT_LID_CLOSED */
 218         -1,     /* 37 SONYPI_EVENT_LID_OPENED */
 219         29,     /* 38 SONYPI_EVENT_BLUETOOTH_ON */
 220         30,     /* 39 SONYPI_EVENT_BLUETOOTH_OFF */
 221         31,     /* 40 SONYPI_EVENT_HELP_PRESSED */
 222         32,     /* 41 SONYPI_EVENT_FNKEY_ONLY */
 223         33,     /* 42 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
 224         34,     /* 43 SONYPI_EVENT_JOGDIAL_FAST_UP */
 225         35,     /* 44 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
 226         36,     /* 45 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
 227         37,     /* 46 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
 228         38,     /* 47 SONYPI_EVENT_JOGDIAL_VFAST_UP */
 229         39,     /* 48 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
 230         40,     /* 49 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
 231         41,     /* 50 SONYPI_EVENT_ZOOM_PRESSED */
 232         42,     /* 51 SONYPI_EVENT_THUMBPHRASE_PRESSED */
 233         43,     /* 52 SONYPI_EVENT_MEYE_FACE */
 234         44,     /* 53 SONYPI_EVENT_MEYE_OPPOSITE */
 235         45,     /* 54 SONYPI_EVENT_MEMORYSTICK_INSERT */
 236         46,     /* 55 SONYPI_EVENT_MEMORYSTICK_EJECT */
 237         -1,     /* 56 SONYPI_EVENT_ANYBUTTON_RELEASED */
 238         -1,     /* 57 SONYPI_EVENT_BATTERY_INSERT */
 239         -1,     /* 58 SONYPI_EVENT_BATTERY_REMOVE */
 240         -1,     /* 59 SONYPI_EVENT_FNKEY_RELEASED */
 241         47,     /* 60 SONYPI_EVENT_WIRELESS_ON */
 242         48,     /* 61 SONYPI_EVENT_WIRELESS_OFF */
 243         49,     /* 62 SONYPI_EVENT_ZOOM_IN_PRESSED */
 244         50,     /* 63 SONYPI_EVENT_ZOOM_OUT_PRESSED */
 245         51,     /* 64 SONYPI_EVENT_CD_EJECT_PRESSED */
 246         52,     /* 65 SONYPI_EVENT_MODEKEY_PRESSED */
 247         53,     /* 66 SONYPI_EVENT_PKEY_P4 */
 248         54,     /* 67 SONYPI_EVENT_PKEY_P5 */
 249         55,     /* 68 SONYPI_EVENT_SETTINGKEY_PRESSED */
 250         56,     /* 69 SONYPI_EVENT_VOLUME_INC_PRESSED */
 251         57,     /* 70 SONYPI_EVENT_VOLUME_DEC_PRESSED */
 252         -1,     /* 71 SONYPI_EVENT_BRIGHTNESS_PRESSED */
 253         58,     /* 72 SONYPI_EVENT_MEDIA_PRESSED */
 254         59,     /* 72 SONYPI_EVENT_VENDOR_PRESSED */
 255 };
 256
 257 static int sony_laptop_input_keycode_map[] = {
 258         KEY_CAMERA,     /*  0 SONYPI_EVENT_CAPTURE_PRESSED */
 259         KEY_RESERVED,   /*  1 SONYPI_EVENT_CAPTURE_RELEASED */
 260         KEY_RESERVED,   /*  2 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
 261         KEY_RESERVED,   /*  3 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
 262         KEY_FN_ESC,     /*  4 SONYPI_EVENT_FNKEY_ESC */
 263         KEY_FN_F1,      /*  5 SONYPI_EVENT_FNKEY_F1 */
 264         KEY_FN_F2,      /*  6 SONYPI_EVENT_FNKEY_F2 */
 265         KEY_FN_F3,      /*  7 SONYPI_EVENT_FNKEY_F3 */
 266         KEY_FN_F4,      /*  8 SONYPI_EVENT_FNKEY_F4 */
 267         KEY_FN_F5,      /*  9 SONYPI_EVENT_FNKEY_F5 */
 268         KEY_FN_F6,      /* 10 SONYPI_EVENT_FNKEY_F6 */
 269         KEY_FN_F7,      /* 11 SONYPI_EVENT_FNKEY_F7 */
 270         KEY_FN_F8,      /* 12 SONYPI_EVENT_FNKEY_F8 */
 271         KEY_FN_F9,      /* 13 SONYPI_EVENT_FNKEY_F9 */
 272         KEY_FN_F10,     /* 14 SONYPI_EVENT_FNKEY_F10 */
 273         KEY_FN_F11,     /* 15 SONYPI_EVENT_FNKEY_F11 */
 274         KEY_FN_F12,     /* 16 SONYPI_EVENT_FNKEY_F12 */
 275         KEY_FN_F1,      /* 17 SONYPI_EVENT_FNKEY_1 */
 276         KEY_FN_F2,      /* 18 SONYPI_EVENT_FNKEY_2 */
 277         KEY_FN_D,       /* 19 SONYPI_EVENT_FNKEY_D */
 278         KEY_FN_E,       /* 20 SONYPI_EVENT_FNKEY_E */
 279         KEY_FN_F,       /* 21 SONYPI_EVENT_FNKEY_F */
 280         KEY_FN_S,       /* 22 SONYPI_EVENT_FNKEY_S */
 281         KEY_FN_B,       /* 23 SONYPI_EVENT_FNKEY_B */
 282         KEY_BLUETOOTH,  /* 24 SONYPI_EVENT_BLUETOOTH_PRESSED */
 283         KEY_PROG1,      /* 25 SONYPI_EVENT_PKEY_P1 */
 284         KEY_PROG2,      /* 26 SONYPI_EVENT_PKEY_P2 */
 285         KEY_PROG3,      /* 27 SONYPI_EVENT_PKEY_P3 */
 286         KEY_BACK,       /* 28 SONYPI_EVENT_BACK_PRESSED */
 287         KEY_BLUETOOTH,  /* 29 SONYPI_EVENT_BLUETOOTH_ON */
 288         KEY_BLUETOOTH,  /* 30 SONYPI_EVENT_BLUETOOTH_OFF */
 289         KEY_HELP,       /* 31 SONYPI_EVENT_HELP_PRESSED */
 290         KEY_FN,         /* 32 SONYPI_EVENT_FNKEY_ONLY */
 291         KEY_RESERVED,   /* 33 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
 292         KEY_RESERVED,   /* 34 SONYPI_EVENT_JOGDIAL_FAST_UP */
 293         KEY_RESERVED,   /* 35 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
 294         KEY_RESERVED,   /* 36 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
 295         KEY_RESERVED,   /* 37 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
 296         KEY_RESERVED,   /* 38 SONYPI_EVENT_JOGDIAL_VFAST_UP */
 297         KEY_RESERVED,   /* 39 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
 298         KEY_RESERVED,   /* 40 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
 299         KEY_ZOOM,       /* 41 SONYPI_EVENT_ZOOM_PRESSED */
 300         BTN_THUMB,      /* 42 SONYPI_EVENT_THUMBPHRASE_PRESSED */
 301         KEY_RESERVED,   /* 43 SONYPI_EVENT_MEYE_FACE */
 302         KEY_RESERVED,   /* 44 SONYPI_EVENT_MEYE_OPPOSITE */
 303         KEY_RESERVED,   /* 45 SONYPI_EVENT_MEMORYSTICK_INSERT */
 304         KEY_RESERVED,   /* 46 SONYPI_EVENT_MEMORYSTICK_EJECT */
 305         KEY_WLAN,       /* 47 SONYPI_EVENT_WIRELESS_ON */
 306         KEY_WLAN,       /* 48 SONYPI_EVENT_WIRELESS_OFF */
 307         KEY_ZOOMIN,     /* 49 SONYPI_EVENT_ZOOM_IN_PRESSED */
 308         KEY_ZOOMOUT,    /* 50 SONYPI_EVENT_ZOOM_OUT_PRESSED */
 309         KEY_EJECTCD,    /* 51 SONYPI_EVENT_CD_EJECT_PRESSED */
 310         KEY_F13,        /* 52 SONYPI_EVENT_MODEKEY_PRESSED */
 311         KEY_PROG4,      /* 53 SONYPI_EVENT_PKEY_P4 */
 312         KEY_F14,        /* 54 SONYPI_EVENT_PKEY_P5 */
 313         KEY_F15,        /* 55 SONYPI_EVENT_SETTINGKEY_PRESSED */
 314         KEY_VOLUMEUP,   /* 56 SONYPI_EVENT_VOLUME_INC_PRESSED */
 315         KEY_VOLUMEDOWN, /* 57 SONYPI_EVENT_VOLUME_DEC_PRESSED */
 316         KEY_MEDIA,      /* 58 SONYPI_EVENT_MEDIA_PRESSED */
 317         KEY_VENDOR,     /* 59 SONYPI_EVENT_VENDOR_PRESSED */
 318 };
 319
 320 /* release buttons after a short delay if pressed */
 321 static void do_sony_laptop_release_key(unsigned long unused)
 322 {
 323         struct sony_laptop_keypress kp;
 324         unsigned long flags;
 325
 326         spin_lock_irqsave(&sony_laptop_input.fifo_lock, flags);
 327
 328         if (kfifo_out(&sony_laptop_input.fifo,
 329                       (unsigned char *)&kp, sizeof(kp)) == sizeof(kp)) {
 330                 input_report_key(kp.dev, kp.key, 0);
 331                 input_sync(kp.dev);
 332         }
 333
 334         /* If there is something in the fifo schedule next release. */
 335         if (kfifo_len(&sony_laptop_input.fifo) != 0)
 336                 mod_timer(&sony_laptop_input.release_key_timer,
 337                           jiffies + msecs_to_jiffies(10));
 338
 339         spin_unlock_irqrestore(&sony_laptop_input.fifo_lock, flags);
 340 }
 341
 342 /* forward event to the input subsystem */
 343 static void sony_laptop_report_input_event(u8 event)
 344 {
 345         struct input_dev *jog_dev = sony_laptop_input.jog_dev;
 346         struct input_dev *key_dev = sony_laptop_input.key_dev;
 347         struct sony_laptop_keypress kp = { NULL };
 348
 349         if (event == SONYPI_EVENT_FNKEY_RELEASED ||
 350                         event == SONYPI_EVENT_ANYBUTTON_RELEASED) {
 351                 /* Nothing, not all VAIOs generate this event */
 352                 return;
 353         }
 354
 355         /* report events */
 356         switch (event) {
 357         /* jog_dev events */
 358         case SONYPI_EVENT_JOGDIAL_UP:
 359         case SONYPI_EVENT_JOGDIAL_UP_PRESSED:
 360                 input_report_rel(jog_dev, REL_WHEEL, 1);
 361                 input_sync(jog_dev);
 362                 return;
 363
 364         case SONYPI_EVENT_JOGDIAL_DOWN:
 365         case SONYPI_EVENT_JOGDIAL_DOWN_PRESSED:
 366                 input_report_rel(jog_dev, REL_WHEEL, -1);
 367                 input_sync(jog_dev);
 368                 return;
 369
 370         /* key_dev events */
 371         case SONYPI_EVENT_JOGDIAL_PRESSED:
 372                 kp.key = BTN_MIDDLE;
 373                 kp.dev = jog_dev;
 374                 break;
 375
 376         default:
 377                 if (event >= ARRAY_SIZE(sony_laptop_input_index)) {
 378                         dprintk("sony_laptop_report_input_event, event not known: %d\n", event);
 379                         break;
 380                 }
 381                 if (sony_laptop_input_index[event] != -1) {
 382                         kp.key = sony_laptop_input_keycode_map[sony_laptop_input_index[event]];
 383                         if (kp.key != KEY_UNKNOWN)
 384                                 kp.dev = key_dev;
 385                 }
 386                 break;
 387         }
 388
 389         if (kp.dev) {
 390                 input_report_key(kp.dev, kp.key, 1);
 391                 /* we emit the scancode so we can always remap the key */
 392                 input_event(kp.dev, EV_MSC, MSC_SCAN, event);
 393                 input_sync(kp.dev);
 394
 395                 /* schedule key release */
 396                 kfifo_in_locked(&sony_laptop_input.fifo,
 397                                 (unsigned char *)&kp, sizeof(kp),
 398                                 &sony_laptop_input.fifo_lock);
 399                 mod_timer(&sony_laptop_input.release_key_timer,
 400                           jiffies + msecs_to_jiffies(10));
 401         } else
 402                 dprintk("unknown input event %.2x\n", event);
 403 }
 404
 405 static int sony_laptop_setup_input(struct acpi_device *acpi_device)
 406 {
 407         struct input_dev *jog_dev;
 408         struct input_dev *key_dev;
 409         int i;
 410         int error;
 411
 412         /* don't run again if already initialized */
 413         if (atomic_add_return(1, &sony_laptop_input.users) > 1)
 414                 return 0;
 415
 416         /* kfifo */
 417         spin_lock_init(&sony_laptop_input.fifo_lock);
 418         error = kfifo_alloc(&sony_laptop_input.fifo,
 419                             SONY_LAPTOP_BUF_SIZE, GFP_KERNEL);
 420         if (error) {
 421                 pr_err(DRV_PFX "kfifo_alloc failed\n");
 422                 goto err_dec_users;
 423         }
 424
 425         setup_timer(&sony_laptop_input.release_key_timer,
 426                     do_sony_laptop_release_key, 0);
 427
 428         /* input keys */
 429         key_dev = input_allocate_device();
 430         if (!key_dev) {
 431                 error = -ENOMEM;
 432                 goto err_free_kfifo;
 433         }
 434
 435         key_dev->name = "Sony Vaio Keys";
 436         key_dev->id.bustype = BUS_ISA;
 437         key_dev->id.vendor = PCI_VENDOR_ID_SONY;
 438         key_dev->dev.parent = &acpi_device->dev;
 439
 440         /* Initialize the Input Drivers: special keys */
 441         input_set_capability(key_dev, EV_MSC, MSC_SCAN);
 442
 443         __set_bit(EV_KEY, key_dev->evbit);
 444         key_dev->keycodesize = sizeof(sony_laptop_input_keycode_map[0]);
 445         key_dev->keycodemax = ARRAY_SIZE(sony_laptop_input_keycode_map);
 446         key_dev->keycode = &sony_laptop_input_keycode_map;
 447         for (i = 0; i < ARRAY_SIZE(sony_laptop_input_keycode_map); i++)
 448                 __set_bit(sony_laptop_input_keycode_map[i], key_dev->keybit);
 449         __clear_bit(KEY_RESERVED, key_dev->keybit);
 450
 451         error = input_register_device(key_dev);
 452         if (error)
 453                 goto err_free_keydev;
 454
 455         sony_laptop_input.key_dev = key_dev;
 456
 457         /* jogdial */
 458         jog_dev = input_allocate_device();
 459         if (!jog_dev) {
 460                 error = -ENOMEM;
 461                 goto err_unregister_keydev;
 462         }
 463
 464         jog_dev->name = "Sony Vaio Jogdial";
 465         jog_dev->id.bustype = BUS_ISA;
 466         jog_dev->id.vendor = PCI_VENDOR_ID_SONY;
 467         key_dev->dev.parent = &acpi_device->dev;
 468
 469         input_set_capability(jog_dev, EV_KEY, BTN_MIDDLE);
 470         input_set_capability(jog_dev, EV_REL, REL_WHEEL);
 471
 472         error = input_register_device(jog_dev);
 473         if (error)
 474                 goto err_free_jogdev;
 475
 476         sony_laptop_input.jog_dev = jog_dev;
 477
 478         return 0;
 479
 480 err_free_jogdev:
 481         input_free_device(jog_dev);
 482
 483 err_unregister_keydev:
 484         input_unregister_device(key_dev);
 485         /* to avoid kref underflow below at input_free_device */
 486         key_dev = NULL;
 487
 488 err_free_keydev:
 489         input_free_device(key_dev);
 490
 491 err_free_kfifo:
 492         kfifo_free(&sony_laptop_input.fifo);
 493
 494 err_dec_users:
 495         atomic_dec(&sony_laptop_input.users);
 496         return error;
 497 }
 498
 499 static void sony_laptop_remove_input(void)
 500 {
 501         struct sony_laptop_keypress kp = { NULL };
 502
 503         /* Cleanup only after the last user has gone */
 504         if (!atomic_dec_and_test(&sony_laptop_input.users))
 505                 return;
 506
 507         del_timer_sync(&sony_laptop_input.release_key_timer);
 508
 509         /*
 510          * Generate key-up events for remaining keys. Note that we don't
 511          * need locking since nobody is adding new events to the kfifo.
 512          */
 513         while (kfifo_out(&sony_laptop_input.fifo,
 514                          (unsigned char *)&kp, sizeof(kp)) == sizeof(kp)) {
 515                 input_report_key(kp.dev, kp.key, 0);
 516                 input_sync(kp.dev);
 517         }
 518
 519         /* destroy input devs */
 520         input_unregister_device(sony_laptop_input.key_dev);
 521         sony_laptop_input.key_dev = NULL;
 522
 523         if (sony_laptop_input.jog_dev) {
 524                 input_unregister_device(sony_laptop_input.jog_dev);
 525                 sony_laptop_input.jog_dev = NULL;
 526         }
 527
 528         kfifo_free(&sony_laptop_input.fifo);
 529 }
 530
 531 /*********** Platform Device ***********/
 532
 533 static atomic_t sony_pf_users = ATOMIC_INIT(0);
 534 static struct platform_driver sony_pf_driver = {
 535         .driver = {
 536                    .name = "sony-laptop",
 537                    .owner = THIS_MODULE,
 538                    }
 539 };
 540 static struct platform_device *sony_pf_device;
 541
 542 static int sony_pf_add(void)
 543 {
 544         int ret = 0;
 545
 546         /* don't run again if already initialized */
 547         if (atomic_add_return(1, &sony_pf_users) > 1)
 548                 return 0;
 549
 550         ret = platform_driver_register(&sony_pf_driver);
 551         if (ret)
 552                 goto out;
 553
 554         sony_pf_device = platform_device_alloc("sony-laptop", -1);
 555         if (!sony_pf_device) {
 556                 ret = -ENOMEM;
 557                 goto out_platform_registered;
 558         }
 559
 560         ret = platform_device_add(sony_pf_device);
 561         if (ret)
 562                 goto out_platform_alloced;
 563
 564         return 0;
 565
 566       out_platform_alloced:
 567         platform_device_put(sony_pf_device);
 568         sony_pf_device = NULL;
 569       out_platform_registered:
 570         platform_driver_unregister(&sony_pf_driver);
 571       out:
 572         atomic_dec(&sony_pf_users);
 573         return ret;
 574 }
 575
 576 static void sony_pf_remove(void)
 577 {
 578         /* deregister only after the last user has gone */
 579         if (!atomic_dec_and_test(&sony_pf_users))
 580                 return;
 581
 582         platform_device_unregister(sony_pf_device);
 583         platform_driver_unregister(&sony_pf_driver);
 584 }
 585
 586 /*********** SNC (SNY5001) Device ***********/
 587
 588 /* the device uses 1-based values, while the backlight subsystem uses
 589    0-based values */
 590 #define SONY_MAX_BRIGHTNESS     8
 591
 592 #define SNC_VALIDATE_IN         0
 593 #define SNC_VALIDATE_OUT        1
 594
 595 static ssize_t sony_nc_sysfs_show(struct device *, struct device_attribute *,
 596                               char *);
 597 static ssize_t sony_nc_sysfs_store(struct device *, struct device_attribute *,
 598                                const char *, size_t);
 599 static int boolean_validate(const int, const int);
 600 static int brightness_default_validate(const int, const int);
 601
 602 struct sony_nc_value {
 603         char *name;             /* name of the entry */
 604         char **acpiget;         /* names of the ACPI get function */
 605         char **acpiset;         /* names of the ACPI set function */
 606         int (*validate)(const int, const int);  /* input/output validation */
 607         int value;              /* current setting */
 608         int valid;              /* Has ever been set */
 609         int debug;              /* active only in debug mode ? */
 610         struct device_attribute devattr;        /* sysfs attribute */
 611 };
 612
 613 #define SNC_HANDLE_NAMES(_name, _values...) \
 614         static char *snc_##_name[] = { _values, NULL }
 615
 616 #define SNC_HANDLE(_name, _getters, _setters, _validate, _debug) \
 617         { \
 618                 .name           = __stringify(_name), \
 619                 .acpiget        = _getters, \
 620                 .acpiset        = _setters, \
 621                 .validate       = _validate, \
 622                 .debug          = _debug, \
 623                 .devattr        = __ATTR(_name, 0, sony_nc_sysfs_show, sony_nc_sysfs_store), \
 624         }
 625
 626 #define SNC_HANDLE_NULL { .name = NULL }
 627
 628 SNC_HANDLE_NAMES(fnkey_get, "GHKE");
 629
 630 SNC_HANDLE_NAMES(brightness_def_get, "GPBR");
 631 SNC_HANDLE_NAMES(brightness_def_set, "SPBR");
 632
 633 SNC_HANDLE_NAMES(cdpower_get, "GCDP");
 634 SNC_HANDLE_NAMES(cdpower_set, "SCDP", "CDPW");
 635
 636 SNC_HANDLE_NAMES(audiopower_get, "GAZP");
 637 SNC_HANDLE_NAMES(audiopower_set, "AZPW");
 638
 639 SNC_HANDLE_NAMES(lanpower_get, "GLNP");
 640 SNC_HANDLE_NAMES(lanpower_set, "LNPW");
 641
 642 SNC_HANDLE_NAMES(lidstate_get, "GLID");
 643
 644 SNC_HANDLE_NAMES(indicatorlamp_get, "GILS");
 645 SNC_HANDLE_NAMES(indicatorlamp_set, "SILS");
 646
 647 SNC_HANDLE_NAMES(gainbass_get, "GMGB");
 648 SNC_HANDLE_NAMES(gainbass_set, "CMGB");
 649
 650 SNC_HANDLE_NAMES(PID_get, "GPID");
 651
 652 SNC_HANDLE_NAMES(CTR_get, "GCTR");
 653 SNC_HANDLE_NAMES(CTR_set, "SCTR");
 654
 655 SNC_HANDLE_NAMES(PCR_get, "GPCR");
 656 SNC_HANDLE_NAMES(PCR_set, "SPCR");
 657
 658 SNC_HANDLE_NAMES(CMI_get, "GCMI");
 659 SNC_HANDLE_NAMES(CMI_set, "SCMI");
 660
 661 static struct sony_nc_value sony_nc_values[] = {
 662         SNC_HANDLE(brightness_default, snc_brightness_def_get,
 663                         snc_brightness_def_set, brightness_default_validate, 0),
 664         SNC_HANDLE(fnkey, snc_fnkey_get, NULL, NULL, 0),
 665         SNC_HANDLE(cdpower, snc_cdpower_get, snc_cdpower_set, boolean_validate, 0),
 666         SNC_HANDLE(audiopower, snc_audiopower_get, snc_audiopower_set,
 667                         boolean_validate, 0),
 668         SNC_HANDLE(lanpower, snc_lanpower_get, snc_lanpower_set,
 669                         boolean_validate, 1),
 670         SNC_HANDLE(lidstate, snc_lidstate_get, NULL,
 671                         boolean_validate, 0),
 672         SNC_HANDLE(indicatorlamp, snc_indicatorlamp_get, snc_indicatorlamp_set,
 673                         boolean_validate, 0),
 674         SNC_HANDLE(gainbass, snc_gainbass_get, snc_gainbass_set,
 675                         boolean_validate, 0),
 676         /* unknown methods */
 677         SNC_HANDLE(PID, snc_PID_get, NULL, NULL, 1),
 678         SNC_HANDLE(CTR, snc_CTR_get, snc_CTR_set, NULL, 1),
 679         SNC_HANDLE(PCR, snc_PCR_get, snc_PCR_set, NULL, 1),
 680         SNC_HANDLE(CMI, snc_CMI_get, snc_CMI_set, NULL, 1),
 681         SNC_HANDLE_NULL
 682 };
 683
 684 static acpi_handle sony_nc_acpi_handle;
 685 static struct acpi_device *sony_nc_acpi_device = NULL;
 686
 687 /*
 688  * acpi_evaluate_object wrappers
 689  */
 690 static int acpi_callgetfunc(acpi_handle handle, char *name, int *result)
 691 {
 692         struct acpi_buffer output;
 693         union acpi_object out_obj;
 694         acpi_status status;
 695
 696         output.length = sizeof(out_obj);
 697         output.pointer = &out_obj;
 698
 699         status = acpi_evaluate_object(handle, name, NULL, &output);
 700         if ((status == AE_OK) && (out_obj.type == ACPI_TYPE_INTEGER)) {
 701                 *result = out_obj.integer.value;
 702                 return 0;
 703         }
 704
 705         pr_warn(DRV_PFX "acpi_callreadfunc failed\n");
 706
 707         return -1;
 708 }
 709
 710 static int acpi_callsetfunc(acpi_handle handle, char *name, int value,
 711                             int *result)
 712 {
 713         struct acpi_object_list params;
 714         union acpi_object in_obj;
 715         struct acpi_buffer output;
 716         union acpi_object out_obj;
 717         acpi_status status;
 718
 719         params.count = 1;
 720         params.pointer = &in_obj;
 721         in_obj.type = ACPI_TYPE_INTEGER;
 722         in_obj.integer.value = value;
 723
 724         output.length = sizeof(out_obj);
 725         output.pointer = &out_obj;
 726
 727         status = acpi_evaluate_object(handle, name, &params, &output);
 728         if (status == AE_OK) {
 729                 if (result != NULL) {
 730                         if (out_obj.type != ACPI_TYPE_INTEGER) {
 731                                 pr_warn(DRV_PFX "acpi_evaluate_object bad "
 732                                        "return type\n");
 733                                 return -1;
 734                         }
 735                         *result = out_obj.integer.value;
 736                 }
 737                 return 0;
 738         }
 739
 740         pr_warn(DRV_PFX "acpi_evaluate_object failed\n");
 741
 742         return -1;
 743 }
 744
 745 struct sony_nc_handles {
 746         u16 cap[0x10];
 747         struct device_attribute devattr;
 748 };
 749
 750 static struct sony_nc_handles *handles;
 751
 752 static ssize_t sony_nc_handles_show(struct device *dev,
 753                 struct device_attribute *attr, char *buffer)
 754 {
 755         ssize_t len = 0;
 756         int i;
 757
 758         for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
 759                 len += snprintf(buffer + len, PAGE_SIZE - len, "0x%.4x ",
 760                                 handles->cap[i]);
 761         }
 762         len += snprintf(buffer + len, PAGE_SIZE - len, "\n");
 763
 764         return len;
 765 }
 766
 767 static int sony_nc_handles_setup(struct platform_device *pd)
 768 {
 769         int i;
 770         int result;
 771
 772         handles = kzalloc(sizeof(*handles), GFP_KERNEL);
 773         if (!handles)
 774                 return -ENOMEM;
 775
 776         for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
 777                 if (!acpi_callsetfunc(sony_nc_acpi_handle,
 778                                         "SN00", i + 0x20, &result)) {
 779                         dprintk("caching handle 0x%.4x (offset: 0x%.2x)\n",
 780                                         result, i);
 781                         handles->cap[i] = result;
 782                 }
 783         }
 784
 785         if (debug) {
 786                 sysfs_attr_init(&handles->devattr.attr);
 787                 handles->devattr.attr.name = "handles";
 788                 handles->devattr.attr.mode = S_IRUGO;
 789                 handles->devattr.show = sony_nc_handles_show;
 790
 791                 /* allow reading capabilities via sysfs */
 792                 if (device_create_file(&pd->dev, &handles->devattr)) {
 793                         kfree(handles);
 794                         handles = NULL;
 795                         return -1;
 796                 }
 797         }
 798
 799         return 0;
 800 }
 801
 802 static int sony_nc_handles_cleanup(struct platform_device *pd)
 803 {
 804         if (handles) {
 805                 if (debug)
 806                         device_remove_file(&pd->dev, &handles->devattr);
 807                 kfree(handles);
 808                 handles = NULL;
 809         }
 810         return 0;
 811 }
 812
 813 static int sony_find_snc_handle(int handle)
 814 {
 815         int i;
 816
 817         /* not initialized yet, return early */
 818         if (!handles)
 819                 return -1;
 820
 821         for (i = 0; i < 0x10; i++) {
 822                 if (handles->cap[i] == handle) {
 823                         dprintk("found handle 0x%.4x (offset: 0x%.2x)\n",
 824                                         handle, i);
 825                         return i;
 826                 }
 827         }
 828         dprintk("handle 0x%.4x not found\n", handle);
 829         return -1;
 830 }
 831
 832 static int sony_call_snc_handle(int handle, int argument, int *result)
 833 {
 834         int ret = 0;
 835         int offset = sony_find_snc_handle(handle);
 836
 837         if (offset < 0)
 838                 return -1;
 839
 840         ret = acpi_callsetfunc(sony_nc_acpi_handle, "SN07", offset | argument,
 841                         result);
 842         dprintk("called SN07 with 0x%.4x (result: 0x%.4x)\n", offset | argument,
 843                         *result);
 844         return ret;
 845 }
 846
 847 /*
 848  * sony_nc_values input/output validate functions
 849  */
 850
 851 /* brightness_default_validate:
 852  *
 853  * manipulate input output values to keep consistency with the
 854  * backlight framework for which brightness values are 0-based.
 855  */
 856 static int brightness_default_validate(const int direction, const int value)
 857 {
 858         switch (direction) {
 859                 case SNC_VALIDATE_OUT:
 860                         return value - 1;
 861                 case SNC_VALIDATE_IN:
 862                         if (value >= 0 && value < SONY_MAX_BRIGHTNESS)
 863                                 return value + 1;
 864         }
 865         return -EINVAL;
 866 }
 867
 868 /* boolean_validate:
 869  *
 870  * on input validate boolean values 0/1, on output just pass the
 871  * received value.
 872  */
 873 static int boolean_validate(const int direction, const int value)
 874 {
 875         if (direction == SNC_VALIDATE_IN) {
 876                 if (value != 0 && value != 1)
 877                         return -EINVAL;
 878         }
 879         return value;
 880 }
 881
 882 /*
 883  * Sysfs show/store common to all sony_nc_values
 884  */
 885 static ssize_t sony_nc_sysfs_show(struct device *dev, struct device_attribute *attr,
 886                               char *buffer)
 887 {
 888         int value;
 889         struct sony_nc_value *item =
 890             container_of(attr, struct sony_nc_value, devattr);
 891
 892         if (!*item->acpiget)
 893                 return -EIO;
 894
 895         if (acpi_callgetfunc(sony_nc_acpi_handle, *item->acpiget, &value) < 0)
 896                 return -EIO;
 897
 898         if (item->validate)
 899                 value = item->validate(SNC_VALIDATE_OUT, value);
 900
 901         return snprintf(buffer, PAGE_SIZE, "%d\n", value);
 902 }
 903
 904 static ssize_t sony_nc_sysfs_store(struct device *dev,
 905                                struct device_attribute *attr,
 906                                const char *buffer, size_t count)
 907 {
 908         int value;
 909         struct sony_nc_value *item =
 910             container_of(attr, struct sony_nc_value, devattr);
 911
 912         if (!item->acpiset)
 913                 return -EIO;
 914
 915         if (count > 31)
 916                 return -EINVAL;
 917
 918         value = simple_strtoul(buffer, NULL, 10);
 919
 920         if (item->validate)
 921                 value = item->validate(SNC_VALIDATE_IN, value);
 922
 923         if (value < 0)
 924                 return value;
 925
 926         if (acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset, value, NULL) < 0)
 927                 return -EIO;
 928         item->value = value;
 929         item->valid = 1;
 930         return count;
 931 }
 932
 933
 934 /*
 935  * Backlight device
 936  */
 937 static int sony_backlight_update_status(struct backlight_device *bd)
 938 {
 939         return acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
 940                                 bd->props.brightness + 1, NULL);
 941 }
 942
 943 static int sony_backlight_get_brightness(struct backlight_device *bd)
 944 {
 945         int value;
 946
 947         if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value))
 948                 return 0;
 949         /* brightness levels are 1-based, while backlight ones are 0-based */
 950         return value - 1;
 951 }
 952
 953 static int sony_nc_get_brightness_ng(struct backlight_device *bd)
 954 {
 955         int result;
 956         int *handle = (int *)bl_get_data(bd);
 957
 958         sony_call_snc_handle(*handle, 0x0200, &result);
 959
 960         return result & 0xff;
 961 }
 962
 963 static int sony_nc_update_status_ng(struct backlight_device *bd)
 964 {
 965         int value, result;
 966         int *handle = (int *)bl_get_data(bd);
 967
 968         value = bd->props.brightness;
 969         sony_call_snc_handle(*handle, 0x0100 | (value << 16), &result);
 970
 971         return sony_nc_get_brightness_ng(bd);
 972 }
 973
 974 static const struct backlight_ops sony_backlight_ops = {
 975         .options = BL_CORE_SUSPENDRESUME,
 976         .update_status = sony_backlight_update_status,
 977         .get_brightness = sony_backlight_get_brightness,
 978 };
 979 static const struct backlight_ops sony_backlight_ng_ops = {
 980         .options = BL_CORE_SUSPENDRESUME,
 981         .update_status = sony_nc_update_status_ng,
 982         .get_brightness = sony_nc_get_brightness_ng,
 983 };
 984 static int backlight_ng_handle;
 985 static struct backlight_device *sony_backlight_device;
 986
 987 /*
 988  * New SNC-only Vaios event mapping to driver known keys
 989  */
 990 struct sony_nc_event {
 991         u8      data;
 992         u8      event;
 993 };
 994
 995 static struct sony_nc_event sony_100_events[] = {
 996         { 0x90, SONYPI_EVENT_PKEY_P1 },
 997         { 0x10, SONYPI_EVENT_ANYBUTTON_RELEASED },
 998         { 0x91, SONYPI_EVENT_PKEY_P2 },
 999         { 0x11, SONYPI_EVENT_ANYBUTTON_RELEASED },
1000         { 0x81, SONYPI_EVENT_FNKEY_F1 },
1001         { 0x01, SONYPI_EVENT_FNKEY_RELEASED },
1002         { 0x82, SONYPI_EVENT_FNKEY_F2 },
1003         { 0x02, SONYPI_EVENT_FNKEY_RELEASED },
1004         { 0x83, SONYPI_EVENT_FNKEY_F3 },
1005         { 0x03, SONYPI_EVENT_FNKEY_RELEASED },
1006         { 0x84, SONYPI_EVENT_FNKEY_F4 },
1007         { 0x04, SONYPI_EVENT_FNKEY_RELEASED },
1008         { 0x85, SONYPI_EVENT_FNKEY_F5 },
1009         { 0x05, SONYPI_EVENT_FNKEY_RELEASED },
1010         { 0x86, SONYPI_EVENT_FNKEY_F6 },
1011         { 0x06, SONYPI_EVENT_FNKEY_RELEASED },
1012         { 0x87, SONYPI_EVENT_FNKEY_F7 },
1013         { 0x07, SONYPI_EVENT_FNKEY_RELEASED },
1014         { 0x89, SONYPI_EVENT_FNKEY_F9 },
1015         { 0x09, SONYPI_EVENT_FNKEY_RELEASED },
1016         { 0x8A, SONYPI_EVENT_FNKEY_F10 },
1017         { 0x0A, SONYPI_EVENT_FNKEY_RELEASED },
1018         { 0x8C, SONYPI_EVENT_FNKEY_F12 },
1019         { 0x0C, SONYPI_EVENT_FNKEY_RELEASED },
1020         { 0x9d, SONYPI_EVENT_ZOOM_PRESSED },
1021         { 0x1d, SONYPI_EVENT_ANYBUTTON_RELEASED },
1022         { 0x9f, SONYPI_EVENT_CD_EJECT_PRESSED },
1023         { 0x1f, SONYPI_EVENT_ANYBUTTON_RELEASED },
1024         { 0xa1, SONYPI_EVENT_MEDIA_PRESSED },
1025         { 0x21, SONYPI_EVENT_ANYBUTTON_RELEASED },
1026         { 0xa4, SONYPI_EVENT_CD_EJECT_PRESSED },
1027         { 0x24, SONYPI_EVENT_ANYBUTTON_RELEASED },
1028         { 0xa5, SONYPI_EVENT_VENDOR_PRESSED },
1029         { 0x25, SONYPI_EVENT_ANYBUTTON_RELEASED },
1030         { 0xa6, SONYPI_EVENT_HELP_PRESSED },
1031         { 0x26, SONYPI_EVENT_ANYBUTTON_RELEASED },
1032         { 0, 0 },
1033 };
1034
1035 static struct sony_nc_event sony_127_events[] = {
1036         { 0x81, SONYPI_EVENT_MODEKEY_PRESSED },
1037         { 0x01, SONYPI_EVENT_ANYBUTTON_RELEASED },
1038         { 0x82, SONYPI_EVENT_PKEY_P1 },
1039         { 0x02, SONYPI_EVENT_ANYBUTTON_RELEASED },
1040         { 0x83, SONYPI_EVENT_PKEY_P2 },
1041         { 0x03, SONYPI_EVENT_ANYBUTTON_RELEASED },
1042         { 0x84, SONYPI_EVENT_PKEY_P3 },
1043         { 0x04, SONYPI_EVENT_ANYBUTTON_RELEASED },
1044         { 0x85, SONYPI_EVENT_PKEY_P4 },
1045         { 0x05, SONYPI_EVENT_ANYBUTTON_RELEASED },
1046         { 0x86, SONYPI_EVENT_PKEY_P5 },
1047         { 0x06, SONYPI_EVENT_ANYBUTTON_RELEASED },
1048         { 0x87, SONYPI_EVENT_SETTINGKEY_PRESSED },
1049         { 0x07, SONYPI_EVENT_ANYBUTTON_RELEASED },
1050         { 0, 0 },
1051 };
1052
1053 /*
1054  * ACPI callbacks
1055  */
1056 static void sony_nc_notify(struct acpi_device *device, u32 event)
1057 {
1058         u32 ev = event;
1059
1060         if (ev >= 0x90) {
1061                 /* New-style event */
1062                 int result;
1063                 int key_handle = 0;
1064                 ev -= 0x90;
1065
1066                 if (sony_find_snc_handle(0x100) == ev)
1067                         key_handle = 0x100;
1068                 if (sony_find_snc_handle(0x127) == ev)
1069                         key_handle = 0x127;
1070
1071                 if (key_handle) {
1072                         struct sony_nc_event *key_event;
1073
1074                         if (sony_call_snc_handle(key_handle, 0x200, &result)) {
1075                                 dprintk("sony_nc_notify, unable to decode"
1076                                         " event 0x%.2x 0x%.2x\n", key_handle,
1077                                         ev);
1078                                 /* restore the original event */
1079                                 ev = event;
1080                         } else {
1081                                 ev = result & 0xFF;
1082
1083                                 if (key_handle == 0x100)
1084                                         key_event = sony_100_events;
1085                                 else
1086                                         key_event = sony_127_events;
1087
1088                                 for (; key_event->data; key_event++) {
1089                                         if (key_event->data == ev) {
1090                                                 ev = key_event->event;
1091                                                 break;
1092                                         }
1093                                 }
1094
1095                                 if (!key_event->data)
1096                                         pr_info(DRV_PFX
1097                                                         "Unknown event: 0x%x 0x%x\n",
1098                                                         key_handle,
1099                                                         ev);
1100                                 else
1101                                         sony_laptop_report_input_event(ev);
1102                         }
1103                 } else if (sony_find_snc_handle(sony_rfkill_handle) == ev) {
1104                         sony_nc_rfkill_update();
1105                         return;
1106                 }
1107         } else
1108                 sony_laptop_report_input_event(ev);
1109
1110         dprintk("sony_nc_notify, event: 0x%.2x\n", ev);
1111         acpi_bus_generate_proc_event(sony_nc_acpi_device, 1, ev);
1112 }
1113
1114 static acpi_status sony_walk_callback(acpi_handle handle, u32 level,
1115                                       void *context, void **return_value)
1116 {
1117         struct acpi_device_info *info;
1118
1119         if (ACPI_SUCCESS(acpi_get_object_info(handle, &info))) {
1120                 pr_warn(DRV_PFX "method: name: %4.4s, args %X\n",
1121                         (char *)&info->name, info->param_count);
1122
1123                 kfree(info);
1124         }
1125
1126         return AE_OK;
1127 }
1128
1129 /*
1130  * ACPI device
1131  */
1132 static int sony_nc_function_setup(struct acpi_device *device)
1133 {
1134         int result;
1135
1136         /* Enable all events */
1137         acpi_callsetfunc(sony_nc_acpi_handle, "SN02", 0xffff, &result);
1138
1139         /* Setup hotkeys */
1140         sony_call_snc_handle(0x0100, 0, &result);
1141         sony_call_snc_handle(0x0101, 0, &result);
1142         sony_call_snc_handle(0x0102, 0x100, &result);
1143         sony_call_snc_handle(0x0127, 0, &result);
1144
1145         return 0;
1146 }
1147
1148 static int sony_nc_resume(struct acpi_device *device)
1149 {
1150         struct sony_nc_value *item;
1151         acpi_handle handle;
1152
1153         for (item = sony_nc_values; item->name; item++) {
1154                 int ret;
1155
1156                 if (!item->valid)
1157                         continue;
1158                 ret = acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset,
1159                                        item->value, NULL);
1160                 if (ret < 0) {
1161                         pr_err(DRV_PFX "%s: %d\n", __func__, ret);
1162                         break;
1163                 }
1164         }
1165
1166         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "ECON",
1167                                          &handle))) {
1168                 if (acpi_callsetfunc(sony_nc_acpi_handle, "ECON", 1, NULL))
1169                         dprintk("ECON Method failed\n");
1170         }
1171
1172         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "SN00",
1173                                          &handle))) {
1174                 dprintk("Doing SNC setup\n");
1175                 sony_nc_function_setup(device);
1176         }
1177
1178         /* re-read rfkill state */
1179         sony_nc_rfkill_update();
1180
1181         /* restore kbd backlight states */
1182         sony_nc_kbd_backlight_resume();
1183
1184         return 0;
1185 }
1186
1187 static void sony_nc_rfkill_cleanup(void)
1188 {
1189         int i;
1190
1191         for (i = 0; i < N_SONY_RFKILL; i++) {
1192                 if (sony_rfkill_devices[i]) {
1193                         rfkill_unregister(sony_rfkill_devices[i]);
1194                         rfkill_destroy(sony_rfkill_devices[i]);
1195                 }
1196         }
1197 }
1198
1199 static int sony_nc_rfkill_set(void *data, bool blocked)
1200 {
1201         int result;
1202         int argument = sony_rfkill_address[(long) data] + 0x100;
1203
1204         if (!blocked)
1205                 argument |= 0xff0000;
1206
1207         return sony_call_snc_handle(sony_rfkill_handle, argument, &result);
1208 }
1209
1210 static const struct rfkill_ops sony_rfkill_ops = {
1211         .set_block = sony_nc_rfkill_set,
1212 };
1213
1214 static int sony_nc_setup_rfkill(struct acpi_device *device,
1215                                 enum sony_nc_rfkill nc_type)
1216 {
1217         int err = 0;
1218         struct rfkill *rfk;
1219         enum rfkill_type type;
1220         const char *name;
1221         int result;
1222         bool hwblock;
1223
1224         switch (nc_type) {
1225         case SONY_WIFI:
1226                 type = RFKILL_TYPE_WLAN;
1227                 name = "sony-wifi";
1228                 break;
1229         case SONY_BLUETOOTH:
1230                 type = RFKILL_TYPE_BLUETOOTH;
1231                 name = "sony-bluetooth";
1232                 break;
1233         case SONY_WWAN:
1234                 type = RFKILL_TYPE_WWAN;
1235                 name = "sony-wwan";
1236                 break;
1237         case SONY_WIMAX:
1238                 type = RFKILL_TYPE_WIMAX;
1239                 name = "sony-wimax";
1240                 break;
1241         default:
1242                 return -EINVAL;
1243         }
1244
1245         rfk = rfkill_alloc(name, &device->dev, type,
1246                            &sony_rfkill_ops, (void *)nc_type);
1247         if (!rfk)
1248                 return -ENOMEM;
1249
1250         sony_call_snc_handle(sony_rfkill_handle, 0x200, &result);
1251         hwblock = !(result & 0x1);
1252         rfkill_set_hw_state(rfk, hwblock);
1253
1254         err = rfkill_register(rfk);
1255         if (err) {
1256                 rfkill_destroy(rfk);
1257                 return err;
1258         }
1259         sony_rfkill_devices[nc_type] = rfk;
1260         return err;
1261 }
1262
1263 static void sony_nc_rfkill_update(void)
1264 {
1265         enum sony_nc_rfkill i;
1266         int result;
1267         bool hwblock;
1268
1269         sony_call_snc_handle(sony_rfkill_handle, 0x200, &result);
1270         hwblock = !(result & 0x1);
1271
1272         for (i = 0; i < N_SONY_RFKILL; i++) {
1273                 int argument = sony_rfkill_address[i];
1274
1275                 if (!sony_rfkill_devices[i])
1276                         continue;
1277
1278                 if (hwblock) {
1279                         if (rfkill_set_hw_state(sony_rfkill_devices[i], true)) {
1280                                 /* we already know we're blocked */
1281                         }
1282                         continue;
1283                 }
1284
1285                 sony_call_snc_handle(sony_rfkill_handle, argument, &result);
1286                 rfkill_set_states(sony_rfkill_devices[i],
1287                                   !(result & 0xf), false);
1288         }
1289 }
1290
1291 static void sony_nc_rfkill_setup(struct acpi_device *device)
1292 {
1293         int offset;
1294         u8 dev_code, i;
1295         acpi_status status;
1296         struct acpi_object_list params;
1297         union acpi_object in_obj;
1298         union acpi_object *device_enum;
1299         struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
1300
1301         offset = sony_find_snc_handle(0x124);
1302         if (offset == -1) {
1303                 offset = sony_find_snc_handle(0x135);
1304                 if (offset == -1)
1305                         return;
1306                 else
1307                         sony_rfkill_handle = 0x135;
1308         } else
1309                 sony_rfkill_handle = 0x124;
1310         dprintk("Found rkfill handle: 0x%.4x\n", sony_rfkill_handle);
1311
1312         /* need to read the whole buffer returned by the acpi call to SN06
1313          * here otherwise we may miss some features
1314          */
1315         params.count = 1;
1316         params.pointer = &in_obj;
1317         in_obj.type = ACPI_TYPE_INTEGER;
1318         in_obj.integer.value = offset;
1319         status = acpi_evaluate_object(sony_nc_acpi_handle, "SN06", &params,
1320                         &buffer);
1321         if (ACPI_FAILURE(status)) {
1322                 dprintk("Radio device enumeration failed\n");
1323                 return;
1324         }
1325
1326         device_enum = (union acpi_object *) buffer.pointer;
1327         if (!device_enum) {
1328                 pr_err(DRV_PFX "No SN06 return object.");
1329                 goto out_no_enum;
1330         }
1331         if (device_enum->type != ACPI_TYPE_BUFFER) {
1332                 pr_err(DRV_PFX "Invalid SN06 return object 0x%.2x\n",
1333                                 device_enum->type);
1334                 goto out_no_enum;
1335         }
1336
1337         /* the buffer is filled with magic numbers describing the devices
1338          * available, 0xff terminates the enumeration
1339          */
1340         for (i = 0; i < device_enum->buffer.length; i++) {
1341
1342                 dev_code = *(device_enum->buffer.pointer + i);
1343                 if (dev_code == 0xff)
1344                         break;
1345
1346                 dprintk("Radio devices, looking at 0x%.2x\n", dev_code);
1347
1348                 if (dev_code == 0 && !sony_rfkill_devices[SONY_WIFI])
1349                         sony_nc_setup_rfkill(device, SONY_WIFI);
1350
1351                 if (dev_code == 0x10 && !sony_rfkill_devices[SONY_BLUETOOTH])
1352                         sony_nc_setup_rfkill(device, SONY_BLUETOOTH);
1353
1354                 if ((0xf0 & dev_code) == 0x20 &&
1355                                 !sony_rfkill_devices[SONY_WWAN])
1356                         sony_nc_setup_rfkill(device, SONY_WWAN);
1357
1358                 if (dev_code == 0x30 && !sony_rfkill_devices[SONY_WIMAX])
1359                         sony_nc_setup_rfkill(device, SONY_WIMAX);
1360         }
1361
1362 out_no_enum:
1363         kfree(buffer.pointer);
1364         return;
1365 }
1366
1367 /* Keyboard backlight feature */
1368 #define KBDBL_HANDLER   0x137
1369 #define KBDBL_PRESENT   0xB00
1370 #define SET_MODE        0xC00
1371 #define SET_STATE       0xD00
1372 #define SET_TIMEOUT     0xE00
1373
1374 struct kbd_backlight {
1375         int mode;
1376         int timeout;
1377         struct device_attribute mode_attr;
1378         struct device_attribute timeout_attr;
1379 };
1380
1381 static struct kbd_backlight *kbdbl_handle;
1382
1383 static ssize_t __sony_nc_kbd_backlight_mode_set(u8 value)
1384 {
1385         int result;
1386
1387         if (value > 1)
1388                 return -EINVAL;
1389
1390         if (sony_call_snc_handle(KBDBL_HANDLER,
1391                                 (value << 0x10) | SET_MODE, &result))
1392                 return -EIO;
1393
1394         /* Try to turn the light on/off immediately */
1395         sony_call_snc_handle(KBDBL_HANDLER, (value << 0x10) | SET_STATE,
1396                         &result);
1397
1398         kbdbl_handle->mode = value;
1399
1400         return 0;
1401 }
1402
1403 static ssize_t sony_nc_kbd_backlight_mode_store(struct device *dev,
1404                 struct device_attribute *attr,
1405                 const char *buffer, size_t count)
1406 {
1407         int ret = 0;
1408         unsigned long value;
1409
1410         if (count > 31)
1411                 return -EINVAL;
1412
1413         if (strict_strtoul(buffer, 10, &value))
1414                 return -EINVAL;
1415
1416         ret = __sony_nc_kbd_backlight_mode_set(value);
1417         if (ret < 0)
1418                 return ret;
1419
1420         return count;
1421 }
1422
1423 static ssize_t sony_nc_kbd_backlight_mode_show(struct device *dev,
1424                 struct device_attribute *attr, char *buffer)
1425 {
1426         ssize_t count = 0;
1427         count = snprintf(buffer, PAGE_SIZE, "%d\n", kbdbl_handle->mode);
1428         return count;
1429 }
1430
1431 static int __sony_nc_kbd_backlight_timeout_set(u8 value)
1432 {
1433         int result;
1434
1435         if (value > 3)
1436                 return -EINVAL;
1437
1438         if (sony_call_snc_handle(KBDBL_HANDLER,
1439                                 (value << 0x10) | SET_TIMEOUT, &result))
1440                 return -EIO;
1441
1442         kbdbl_handle->timeout = value;
1443
1444         return 0;
1445 }
1446
1447 static ssize_t sony_nc_kbd_backlight_timeout_store(struct device *dev,
1448                 struct device_attribute *attr,
1449                 const char *buffer, size_t count)
1450 {
1451         int ret = 0;
1452         unsigned long value;
1453
1454         if (count > 31)
1455                 return -EINVAL;
1456
1457         if (strict_strtoul(buffer, 10, &value))
1458                 return -EINVAL;
1459
1460         ret = __sony_nc_kbd_backlight_timeout_set(value);
1461         if (ret < 0)
1462                 return ret;
1463
1464         return count;
1465 }
1466
1467 static ssize_t sony_nc_kbd_backlight_timeout_show(struct device *dev,
1468                 struct device_attribute *attr, char *buffer)
1469 {
1470         ssize_t count = 0;
1471         count = snprintf(buffer, PAGE_SIZE, "%d\n", kbdbl_handle->timeout);
1472         return count;
1473 }
1474
1475 static int sony_nc_kbd_backlight_setup(struct platform_device *pd)
1476 {
1477         int result;
1478
1479         if (sony_call_snc_handle(KBDBL_HANDLER, KBDBL_PRESENT, &result))
1480                 return 0;
1481         if (!(result & 0x02))
1482                 return 0;
1483
1484         kbdbl_handle = kzalloc(sizeof(*kbdbl_handle), GFP_KERNEL);
1485         if (!kbdbl_handle)
1486                 return -ENOMEM;
1487
1488         sysfs_attr_init(&kbdbl_handle->mode_attr.attr);
1489         kbdbl_handle->mode_attr.attr.name = "kbd_backlight";
1490         kbdbl_handle->mode_attr.attr.mode = S_IRUGO | S_IWUSR;
1491         kbdbl_handle->mode_attr.show = sony_nc_kbd_backlight_mode_show;
1492         kbdbl_handle->mode_attr.store = sony_nc_kbd_backlight_mode_store;
1493
1494         sysfs_attr_init(&kbdbl_handle->timeout_attr.attr);
1495         kbdbl_handle->timeout_attr.attr.name = "kbd_backlight_timeout";
1496         kbdbl_handle->timeout_attr.attr.mode = S_IRUGO | S_IWUSR;
1497         kbdbl_handle->timeout_attr.show = sony_nc_kbd_backlight_timeout_show;
1498         kbdbl_handle->timeout_attr.store = sony_nc_kbd_backlight_timeout_store;
1499
1500         if (device_create_file(&pd->dev, &kbdbl_handle->mode_attr))
1501                 goto outkzalloc;
1502
1503         if (device_create_file(&pd->dev, &kbdbl_handle->timeout_attr))
1504                 goto outmode;
1505
1506         __sony_nc_kbd_backlight_mode_set(kbd_backlight);
1507         __sony_nc_kbd_backlight_timeout_set(kbd_backlight_timeout);
1508
1509         return 0;
1510
1511 outmode:
1512         device_remove_file(&pd->dev, &kbdbl_handle->mode_attr);
1513 outkzalloc:
1514         kfree(kbdbl_handle);
1515         kbdbl_handle = NULL;
1516         return -1;
1517 }
1518
1519 static int sony_nc_kbd_backlight_cleanup(struct platform_device *pd)
1520 {
1521         if (kbdbl_handle) {
1522                 int result;
1523
1524                 device_remove_file(&pd->dev, &kbdbl_handle->mode_attr);
1525                 device_remove_file(&pd->dev, &kbdbl_handle->timeout_attr);
1526
1527                 /* restore the default hw behaviour */
1528                 sony_call_snc_handle(KBDBL_HANDLER, 0x1000 | SET_MODE, &result);
1529                 sony_call_snc_handle(KBDBL_HANDLER, SET_TIMEOUT, &result);
1530
1531                 kfree(kbdbl_handle);
1532         }
1533         return 0;
1534 }
1535
1536 static void sony_nc_kbd_backlight_resume(void)
1537 {
1538         int ignore = 0;
1539
1540         if (!kbdbl_handle)
1541                 return;
1542
1543         if (kbdbl_handle->mode == 0)
1544                 sony_call_snc_handle(KBDBL_HANDLER, SET_MODE, &ignore);
1545
1546         if (kbdbl_handle->timeout != 0)
1547                 sony_call_snc_handle(KBDBL_HANDLER,
1548                                 (kbdbl_handle->timeout << 0x10) | SET_TIMEOUT,
1549                                 &ignore);
1550 }
1551
1552 static void sony_nc_backlight_setup(void)
1553 {
1554         acpi_handle unused;
1555         int max_brightness = 0;
1556         const struct backlight_ops *ops = NULL;
1557         struct backlight_properties props;
1558
1559         if (sony_find_snc_handle(0x12f) != -1) {
1560                 backlight_ng_handle = 0x12f;
1561                 ops = &sony_backlight_ng_ops;
1562                 max_brightness = 0xff;
1563
1564         } else if (sony_find_snc_handle(0x137) != -1) {
1565                 backlight_ng_handle = 0x137;
1566                 ops = &sony_backlight_ng_ops;
1567                 max_brightness = 0xff;
1568
1569         } else if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT",
1570                                                 &unused))) {
1571                 ops = &sony_backlight_ops;
1572                 max_brightness = SONY_MAX_BRIGHTNESS - 1;
1573
1574         } else
1575                 return;
1576
1577         memset(&props, 0, sizeof(struct backlight_properties));
1578         props.type = BACKLIGHT_PLATFORM;
1579         props.max_brightness = max_brightness;
1580         sony_backlight_device = backlight_device_register("sony", NULL,
1581                                                           &backlight_ng_handle,
1582                                                           ops, &props);
1583
1584         if (IS_ERR(sony_backlight_device)) {
1585                 pr_warning(DRV_PFX "unable to register backlight device\n");
1586                 sony_backlight_device = NULL;
1587         } else
1588                 sony_backlight_device->props.brightness =
1589                     ops->get_brightness(sony_backlight_device);
1590 }
1591
1592 static void sony_nc_backlight_cleanup(void)
1593 {
1594         if (sony_backlight_device)
1595                 backlight_device_unregister(sony_backlight_device);
1596 }
1597
1598 static int sony_nc_add(struct acpi_device *device)
1599 {
1600         acpi_status status;
1601         int result = 0;
1602         acpi_handle handle;
1603         struct sony_nc_value *item;
1604
1605         pr_info(DRV_PFX "%s v%s.\n", SONY_NC_DRIVER_NAME,
1606                         SONY_LAPTOP_DRIVER_VERSION);
1607
1608         sony_nc_acpi_device = device;
1609         strcpy(acpi_device_class(device), "sony/hotkey");
1610
1611         sony_nc_acpi_handle = device->handle;
1612
1613         /* read device status */
1614         result = acpi_bus_get_status(device);
1615         /* bail IFF the above call was successful and the device is not present */
1616         if (!result && !device->status.present) {
1617                 dprintk("Device not present\n");
1618                 result = -ENODEV;
1619                 goto outwalk;
1620         }
1621
1622         result = sony_pf_add();
1623         if (result)
1624                 goto outpresent;
1625
1626         if (debug) {
1627                 status = acpi_walk_namespace(ACPI_TYPE_METHOD,
1628                                 sony_nc_acpi_handle, 1, sony_walk_callback,
1629                                 NULL, NULL, NULL);
1630                 if (ACPI_FAILURE(status)) {
1631                         pr_warn(DRV_PFX "unable to walk acpi resources\n");
1632                         result = -ENODEV;
1633                         goto outpresent;
1634                 }
1635         }
1636
1637         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "ECON",
1638                                          &handle))) {
1639                 if (acpi_callsetfunc(sony_nc_acpi_handle, "ECON", 1, NULL))
1640                         dprintk("ECON Method failed\n");
1641         }
1642
1643         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "SN00",
1644                                          &handle))) {
1645                 dprintk("Doing SNC setup\n");
1646                 result = sony_nc_handles_setup(sony_pf_device);
1647                 if (result)
1648                         goto outpresent;
1649                 result = sony_nc_kbd_backlight_setup(sony_pf_device);
1650                 if (result)
1651                         goto outsnc;
1652                 sony_nc_function_setup(device);
1653                 sony_nc_rfkill_setup(device);
1654         }
1655
1656         /* setup input devices and helper fifo */
1657         result = sony_laptop_setup_input(device);
1658         if (result) {
1659                 pr_err(DRV_PFX "Unable to create input devices.\n");
1660                 goto outkbdbacklight;
1661         }
1662
1663         if (acpi_video_backlight_support()) {
1664                 pr_info(DRV_PFX "brightness ignored, must be "
1665                        "controlled by ACPI video driver\n");
1666         } else {
1667                 sony_nc_backlight_setup();
1668         }
1669
1670         /* create sony_pf sysfs attributes related to the SNC device */
1671         for (item = sony_nc_values; item->name; ++item) {
1672
1673                 if (!debug && item->debug)
1674                         continue;
1675
1676                 /* find the available acpiget as described in the DSDT */
1677                 for (; item->acpiget && *item->acpiget; ++item->acpiget) {
1678                         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
1679                                                          *item->acpiget,
1680                                                          &handle))) {
1681                                 dprintk("Found %s getter: %s\n",
1682                                                 item->name, *item->acpiget);
1683                                 item->devattr.attr.mode |= S_IRUGO;
1684                                 break;
1685                         }
1686                 }
1687
1688                 /* find the available acpiset as described in the DSDT */
1689                 for (; item->acpiset && *item->acpiset; ++item->acpiset) {
1690                         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
1691                                                          *item->acpiset,
1692                                                          &handle))) {
1693                                 dprintk("Found %s setter: %s\n",
1694                                                 item->name, *item->acpiset);
1695                                 item->devattr.attr.mode |= S_IWUSR;
1696                                 break;
1697                         }
1698                 }
1699
1700                 if (item->devattr.attr.mode != 0) {
1701                         result =
1702                             device_create_file(&sony_pf_device->dev,
1703                                                &item->devattr);
1704                         if (result)
1705                                 goto out_sysfs;
1706                 }
1707         }
1708
1709         return 0;
1710
1711       out_sysfs:
1712         for (item = sony_nc_values; item->name; ++item) {
1713                 device_remove_file(&sony_pf_device->dev, &item->devattr);
1714         }
1715         sony_nc_backlight_cleanup();
1716
1717         sony_laptop_remove_input();
1718
1719       outkbdbacklight:
1720         sony_nc_kbd_backlight_cleanup(sony_pf_device);
1721
1722       outsnc:
1723         sony_nc_handles_cleanup(sony_pf_device);
1724
1725       outpresent:
1726         sony_pf_remove();
1727
1728       outwalk:
1729         sony_nc_rfkill_cleanup();
1730         return result;
1731 }
1732
1733 static int sony_nc_remove(struct acpi_device *device, int type)
1734 {
1735         struct sony_nc_value *item;
1736
1737         sony_nc_backlight_cleanup();
1738
1739         sony_nc_acpi_device = NULL;
1740
1741         for (item = sony_nc_values; item->name; ++item) {
1742                 device_remove_file(&sony_pf_device->dev, &item->devattr);
1743         }
1744
1745         sony_nc_kbd_backlight_cleanup(sony_pf_device);
1746         sony_nc_handles_cleanup(sony_pf_device);
1747         sony_pf_remove();
1748         sony_laptop_remove_input();
1749         sony_nc_rfkill_cleanup();
1750         dprintk(SONY_NC_DRIVER_NAME " removed.\n");
1751
1752         return 0;
1753 }
1754
1755 static const struct acpi_device_id sony_device_ids[] = {
1756         {SONY_NC_HID, 0},
1757         {SONY_PIC_HID, 0},
1758         {"", 0},
1759 };
1760 MODULE_DEVICE_TABLE(acpi, sony_device_ids);
1761
1762 static const struct acpi_device_id sony_nc_device_ids[] = {
1763         {SONY_NC_HID, 0},
1764         {"", 0},
1765 };
1766
1767 static struct acpi_driver sony_nc_driver = {
1768         .name = SONY_NC_DRIVER_NAME,
1769         .class = SONY_NC_CLASS,
1770         .ids = sony_nc_device_ids,
1771         .owner = THIS_MODULE,
1772         .ops = {
1773                 .add = sony_nc_add,
1774                 .remove = sony_nc_remove,
1775                 .resume = sony_nc_resume,
1776                 .notify = sony_nc_notify,
1777                 },
1778 };
1779
1780 /*********** SPIC (SNY6001) Device ***********/
1781
1782 #define SONYPI_DEVICE_TYPE1     0x00000001
1783 #define SONYPI_DEVICE_TYPE2     0x00000002
1784 #define SONYPI_DEVICE_TYPE3     0x00000004
1785
1786 #define SONYPI_TYPE1_OFFSET     0x04
1787 #define SONYPI_TYPE2_OFFSET     0x12
1788 #define SONYPI_TYPE3_OFFSET     0x12
1789
1790 struct sony_pic_ioport {
1791         struct acpi_resource_io io1;
1792         struct acpi_resource_io io2;
1793         struct list_head        list;
1794 };
1795
1796 struct sony_pic_irq {
1797         struct acpi_resource_irq        irq;
1798         struct list_head                list;
1799 };
1800
1801 struct sonypi_eventtypes {
1802         u8                      data;
1803         unsigned long           mask;
1804         struct sonypi_event     *events;
1805 };
1806
1807 struct sony_pic_dev {
1808         struct acpi_device              *acpi_dev;
1809         struct sony_pic_irq             *cur_irq;
1810         struct sony_pic_ioport          *cur_ioport;
1811         struct list_head                interrupts;
1812         struct list_head                ioports;
1813         struct mutex                    lock;
1814         struct sonypi_eventtypes        *event_types;
1815         int                             (*handle_irq)(const u8, const u8);
1816         int                             model;
1817         u16                             evport_offset;
1818         u8                              camera_power;
1819         u8                              bluetooth_power;
1820         u8                              wwan_power;
1821 };
1822
1823 static struct sony_pic_dev spic_dev = {
1824         .interrupts     = LIST_HEAD_INIT(spic_dev.interrupts),
1825         .ioports        = LIST_HEAD_INIT(spic_dev.ioports),
1826 };
1827
1828 static int spic_drv_registered;
1829
1830 /* Event masks */
1831 #define SONYPI_JOGGER_MASK                      0x00000001
1832 #define SONYPI_CAPTURE_MASK                     0x00000002
1833 #define SONYPI_FNKEY_MASK                       0x00000004
1834 #define SONYPI_BLUETOOTH_MASK                   0x00000008
1835 #define SONYPI_PKEY_MASK                        0x00000010
1836 #define SONYPI_BACK_MASK                        0x00000020
1837 #define SONYPI_HELP_MASK                        0x00000040
1838 #define SONYPI_LID_MASK                         0x00000080
1839 #define SONYPI_ZOOM_MASK                        0x00000100
1840 #define SONYPI_THUMBPHRASE_MASK                 0x00000200
1841 #define SONYPI_MEYE_MASK                        0x00000400
1842 #define SONYPI_MEMORYSTICK_MASK                 0x00000800
1843 #define SONYPI_BATTERY_MASK                     0x00001000
1844 #define SONYPI_WIRELESS_MASK                    0x00002000
1845
1846 struct sonypi_event {
1847         u8      data;
1848         u8      event;
1849 };
1850
1851 /* The set of possible button release events */
1852 static struct sonypi_event sonypi_releaseev[] = {
1853         { 0x00, SONYPI_EVENT_ANYBUTTON_RELEASED },
1854         { 0, 0 }
1855 };
1856
1857 /* The set of possible jogger events  */
1858 static struct sonypi_event sonypi_joggerev[] = {
1859         { 0x1f, SONYPI_EVENT_JOGDIAL_UP },
1860         { 0x01, SONYPI_EVENT_JOGDIAL_DOWN },
1861         { 0x5f, SONYPI_EVENT_JOGDIAL_UP_PRESSED },
1862         { 0x41, SONYPI_EVENT_JOGDIAL_DOWN_PRESSED },
1863         { 0x1e, SONYPI_EVENT_JOGDIAL_FAST_UP },
1864         { 0x02, SONYPI_EVENT_JOGDIAL_FAST_DOWN },
1865         { 0x5e, SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED },
1866         { 0x42, SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED },
1867         { 0x1d, SONYPI_EVENT_JOGDIAL_VFAST_UP },
1868         { 0x03, SONYPI_EVENT_JOGDIAL_VFAST_DOWN },
1869         { 0x5d, SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED },
1870         { 0x43, SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED },
1871         { 0x40, SONYPI_EVENT_JOGDIAL_PRESSED },
1872         { 0, 0 }
1873 };
1874
1875 /* The set of possible capture button events */
1876 static struct sonypi_event sonypi_captureev[] = {
1877         { 0x05, SONYPI_EVENT_CAPTURE_PARTIALPRESSED },
1878         { 0x07, SONYPI_EVENT_CAPTURE_PRESSED },
1879         { 0x40, SONYPI_EVENT_CAPTURE_PRESSED },
1880         { 0x01, SONYPI_EVENT_CAPTURE_PARTIALRELEASED },
1881         { 0, 0 }
1882 };
1883
1884 /* The set of possible fnkeys events */
1885 static struct sonypi_event sonypi_fnkeyev[] = {
1886         { 0x10, SONYPI_EVENT_FNKEY_ESC },
1887         { 0x11, SONYPI_EVENT_FNKEY_F1 },
1888         { 0x12, SONYPI_EVENT_FNKEY_F2 },
1889         { 0x13, SONYPI_EVENT_FNKEY_F3 },
1890         { 0x14, SONYPI_EVENT_FNKEY_F4 },
1891         { 0x15, SONYPI_EVENT_FNKEY_F5 },
1892         { 0x16, SONYPI_EVENT_FNKEY_F6 },
1893         { 0x17, SONYPI_EVENT_FNKEY_F7 },
1894         { 0x18, SONYPI_EVENT_FNKEY_F8 },
1895         { 0x19, SONYPI_EVENT_FNKEY_F9 },
1896         { 0x1a, SONYPI_EVENT_FNKEY_F10 },
1897         { 0x1b, SONYPI_EVENT_FNKEY_F11 },
1898         { 0x1c, SONYPI_EVENT_FNKEY_F12 },
1899         { 0x1f, SONYPI_EVENT_FNKEY_RELEASED },
1900         { 0x21, SONYPI_EVENT_FNKEY_1 },
1901         { 0x22, SONYPI_EVENT_FNKEY_2 },
1902         { 0x31, SONYPI_EVENT_FNKEY_D },
1903         { 0x32, SONYPI_EVENT_FNKEY_E },
1904         { 0x33, SONYPI_EVENT_FNKEY_F },
1905         { 0x34, SONYPI_EVENT_FNKEY_S },
1906         { 0x35, SONYPI_EVENT_FNKEY_B },
1907         { 0x36, SONYPI_EVENT_FNKEY_ONLY },
1908         { 0, 0 }
1909 };
1910
1911 /* The set of possible program key events */
1912 static struct sonypi_event sonypi_pkeyev[] = {
1913         { 0x01, SONYPI_EVENT_PKEY_P1 },
1914         { 0x02, SONYPI_EVENT_PKEY_P2 },
1915         { 0x04, SONYPI_EVENT_PKEY_P3 },
1916         { 0x20, SONYPI_EVENT_PKEY_P1 },
1917         { 0, 0 }
1918 };
1919
1920 /* The set of possible bluetooth events */
1921 static struct sonypi_event sonypi_blueev[] = {
1922         { 0x55, SONYPI_EVENT_BLUETOOTH_PRESSED },
1923         { 0x59, SONYPI_EVENT_BLUETOOTH_ON },
1924         { 0x5a, SONYPI_EVENT_BLUETOOTH_OFF },
1925         { 0, 0 }
1926 };
1927
1928 /* The set of possible wireless events */
1929 static struct sonypi_event sonypi_wlessev[] = {
1930         { 0x59, SONYPI_EVENT_IGNORE },
1931         { 0x5a, SONYPI_EVENT_IGNORE },
1932         { 0, 0 }
1933 };
1934
1935 /* The set of possible back button events */
1936 static struct sonypi_event sonypi_backev[] = {
1937         { 0x20, SONYPI_EVENT_BACK_PRESSED },
1938         { 0, 0 }
1939 };
1940
1941 /* The set of possible help button events */
1942 static struct sonypi_event sonypi_helpev[] = {
1943         { 0x3b, SONYPI_EVENT_HELP_PRESSED },
1944         { 0, 0 }
1945 };
1946
1947
1948 /* The set of possible lid events */
1949 static struct sonypi_event sonypi_lidev[] = {
1950         { 0x51, SONYPI_EVENT_LID_CLOSED },
1951         { 0x50, SONYPI_EVENT_LID_OPENED },
1952         { 0, 0 }
1953 };
1954
1955 /* The set of possible zoom events */
1956 static struct sonypi_event sonypi_zoomev[] = {
1957         { 0x39, SONYPI_EVENT_ZOOM_PRESSED },
1958         { 0x10, SONYPI_EVENT_ZOOM_IN_PRESSED },
1959         { 0x20, SONYPI_EVENT_ZOOM_OUT_PRESSED },
1960         { 0x04, SONYPI_EVENT_ZOOM_PRESSED },
1961         { 0, 0 }
1962 };
1963
1964 /* The set of possible thumbphrase events */
1965 static struct sonypi_event sonypi_thumbphraseev[] = {
1966         { 0x3a, SONYPI_EVENT_THUMBPHRASE_PRESSED },
1967         { 0, 0 }
1968 };
1969
1970 /* The set of possible motioneye camera events */
1971 static struct sonypi_event sonypi_meyeev[] = {
1972         { 0x00, SONYPI_EVENT_MEYE_FACE },
1973         { 0x01, SONYPI_EVENT_MEYE_OPPOSITE },
1974         { 0, 0 }
1975 };
1976
1977 /* The set of possible memorystick events */
1978 static struct sonypi_event sonypi_memorystickev[] = {
1979         { 0x53, SONYPI_EVENT_MEMORYSTICK_INSERT },
1980         { 0x54, SONYPI_EVENT_MEMORYSTICK_EJECT },
1981         { 0, 0 }
1982 };
1983
1984 /* The set of possible battery events */
1985 static struct sonypi_event sonypi_batteryev[] = {
1986         { 0x20, SONYPI_EVENT_BATTERY_INSERT },
1987         { 0x30, SONYPI_EVENT_BATTERY_REMOVE },
1988         { 0, 0 }
1989 };
1990
1991 /* The set of possible volume events */
1992 static struct sonypi_event sonypi_volumeev[] = {
1993         { 0x01, SONYPI_EVENT_VOLUME_INC_PRESSED },
1994         { 0x02, SONYPI_EVENT_VOLUME_DEC_PRESSED },
1995         { 0, 0 }
1996 };
1997
1998 /* The set of possible brightness events */
1999 static struct sonypi_event sonypi_brightnessev[] = {
2000         { 0x80, SONYPI_EVENT_BRIGHTNESS_PRESSED },
2001         { 0, 0 }
2002 };
2003
2004 static struct sonypi_eventtypes type1_events[] = {
2005         { 0, 0xffffffff, sonypi_releaseev },
2006         { 0x70, SONYPI_MEYE_MASK, sonypi_meyeev },
2007         { 0x30, SONYPI_LID_MASK, sonypi_lidev },
2008         { 0x60, SONYPI_CAPTURE_MASK, sonypi_captureev },
2009         { 0x10, SONYPI_JOGGER_MASK, sonypi_joggerev },
2010         { 0x20, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
2011         { 0x30, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
2012         { 0x40, SONYPI_PKEY_MASK, sonypi_pkeyev },
2013         { 0x30, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
2014         { 0x40, SONYPI_BATTERY_MASK, sonypi_batteryev },
2015         { 0 },
2016 };
2017 static struct sonypi_eventtypes type2_events[] = {
2018         { 0, 0xffffffff, sonypi_releaseev },
2019         { 0x38, SONYPI_LID_MASK, sonypi_lidev },
2020         { 0x11, SONYPI_JOGGER_MASK, sonypi_joggerev },
2021         { 0x61, SONYPI_CAPTURE_MASK, sonypi_captureev },
2022         { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
2023         { 0x31, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
2024         { 0x08, SONYPI_PKEY_MASK, sonypi_pkeyev },
2025         { 0x11, SONYPI_BACK_MASK, sonypi_backev },
2026         { 0x21, SONYPI_HELP_MASK, sonypi_helpev },
2027         { 0x21, SONYPI_ZOOM_MASK, sonypi_zoomev },
2028         { 0x20, SONYPI_THUMBPHRASE_MASK, sonypi_thumbphraseev },
2029         { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
2030         { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
2031         { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
2032         { 0 },
2033 };
2034 static struct sonypi_eventtypes type3_events[] = {
2035         { 0, 0xffffffff, sonypi_releaseev },
2036         { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
2037         { 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
2038         { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
2039         { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
2040         { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
2041         { 0x05, SONYPI_PKEY_MASK, sonypi_pkeyev },
2042         { 0x05, SONYPI_ZOOM_MASK, sonypi_zoomev },
2043         { 0x05, SONYPI_CAPTURE_MASK, sonypi_captureev },
2044         { 0x05, SONYPI_PKEY_MASK, sonypi_volumeev },
2045         { 0x05, SONYPI_PKEY_MASK, sonypi_brightnessev },
2046         { 0 },
2047 };
2048
2049 /* low level spic calls */
2050 #define ITERATIONS_LONG         10000
2051 #define ITERATIONS_SHORT        10
2052 #define wait_on_command(command, iterations) {                          \
2053         unsigned int n = iterations;                                    \
2054         while (--n && (command))                                        \
2055                 udelay(1);                                              \
2056         if (!n)                                                         \
2057                 dprintk("command failed at %s : %s (line %d)\n",        \
2058                                 __FILE__, __func__, __LINE__);  \
2059 }
2060
2061 static u8 sony_pic_call1(u8 dev)
2062 {
2063         u8 v1, v2;
2064
2065         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
2066                         ITERATIONS_LONG);
2067         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
2068         v1 = inb_p(spic_dev.cur_ioport->io1.minimum + 4);
2069         v2 = inb_p(spic_dev.cur_ioport->io1.minimum);
2070         dprintk("sony_pic_call1(0x%.2x): 0x%.4x\n", dev, (v2 << 8) | v1);
2071         return v2;
2072 }
2073
2074 static u8 sony_pic_call2(u8 dev, u8 fn)
2075 {
2076         u8 v1;
2077
2078         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
2079                         ITERATIONS_LONG);
2080         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
2081         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
2082                         ITERATIONS_LONG);
2083         outb(fn, spic_dev.cur_ioport->io1.minimum);
2084         v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
2085         dprintk("sony_pic_call2(0x%.2x - 0x%.2x): 0x%.4x\n", dev, fn, v1);
2086         return v1;
2087 }
2088
2089 static u8 sony_pic_call3(u8 dev, u8 fn, u8 v)
2090 {
2091         u8 v1;
2092
2093         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
2094         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
2095         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
2096         outb(fn, spic_dev.cur_ioport->io1.minimum);
2097         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
2098         outb(v, spic_dev.cur_ioport->io1.minimum);
2099         v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
2100         dprintk("sony_pic_call3(0x%.2x - 0x%.2x - 0x%.2x): 0x%.4x\n",
2101                         dev, fn, v, v1);
2102         return v1;
2103 }
2104
2105 /*
2106  * minidrivers for SPIC models
2107  */
2108 static int type3_handle_irq(const u8 data_mask, const u8 ev)
2109 {
2110         /*
2111          * 0x31 could mean we have to take some extra action and wait for
2112          * the next irq for some Type3 models, it will generate a new
2113          * irq and we can read new data from the device:
2114          *  - 0x5c and 0x5f requires 0xA0
2115          *  - 0x61 requires 0xB3
2116          */
2117         if (data_mask == 0x31) {
2118                 if (ev == 0x5c || ev == 0x5f)
2119                         sony_pic_call1(0xA0);
2120                 else if (ev == 0x61)
2121                         sony_pic_call1(0xB3);
2122                 return 0;
2123         }
2124         return 1;
2125 }
2126
2127 static void sony_pic_detect_device_type(struct sony_pic_dev *dev)
2128 {
2129         struct pci_dev *pcidev;
2130
2131         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
2132                         PCI_DEVICE_ID_INTEL_82371AB_3, NULL);
2133         if (pcidev) {
2134                 dev->model = SONYPI_DEVICE_TYPE1;
2135                 dev->evport_offset = SONYPI_TYPE1_OFFSET;
2136                 dev->event_types = type1_events;
2137                 goto out;
2138         }
2139
2140         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
2141                         PCI_DEVICE_ID_INTEL_ICH6_1, NULL);
2142         if (pcidev) {
2143                 dev->model = SONYPI_DEVICE_TYPE2;
2144                 dev->evport_offset = SONYPI_TYPE2_OFFSET;
2145                 dev->event_types = type2_events;
2146                 goto out;
2147         }
2148
2149         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
2150                         PCI_DEVICE_ID_INTEL_ICH7_1, NULL);
2151         if (pcidev) {
2152                 dev->model = SONYPI_DEVICE_TYPE3;
2153                 dev->handle_irq = type3_handle_irq;
2154                 dev->evport_offset = SONYPI_TYPE3_OFFSET;
2155                 dev->event_types = type3_events;
2156                 goto out;
2157         }
2158
2159         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
2160                         PCI_DEVICE_ID_INTEL_ICH8_4, NULL);
2161         if (pcidev) {
2162                 dev->model = SONYPI_DEVICE_TYPE3;
2163                 dev->handle_irq = type3_handle_irq;
2164                 dev->evport_offset = SONYPI_TYPE3_OFFSET;
2165                 dev->event_types = type3_events;
2166                 goto out;
2167         }
2168
2169         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
2170                         PCI_DEVICE_ID_INTEL_ICH9_1, NULL);
2171         if (pcidev) {
2172                 dev->model = SONYPI_DEVICE_TYPE3;
2173                 dev->handle_irq = type3_handle_irq;
2174                 dev->evport_offset = SONYPI_TYPE3_OFFSET;
2175                 dev->event_types = type3_events;
2176                 goto out;
2177         }
2178
2179         /* default */
2180         dev->model = SONYPI_DEVICE_TYPE2;
2181         dev->evport_offset = SONYPI_TYPE2_OFFSET;
2182         dev->event_types = type2_events;
2183
2184 out:
2185         if (pcidev)
2186                 pci_dev_put(pcidev);
2187
2188         pr_info(DRV_PFX "detected Type%d model\n",
2189                         dev->model == SONYPI_DEVICE_TYPE1 ? 1 :
2190                         dev->model == SONYPI_DEVICE_TYPE2 ? 2 : 3);
2191 }
2192
2193 /* camera tests and poweron/poweroff */
2194 #define SONYPI_CAMERA_PICTURE           5
2195 #define SONYPI_CAMERA_CONTROL           0x10
2196
2197 #define SONYPI_CAMERA_BRIGHTNESS                0
2198 #define SONYPI_CAMERA_CONTRAST                  1
2199 #define SONYPI_CAMERA_HUE                       2
2200 #define SONYPI_CAMERA_COLOR                     3
2201 #define SONYPI_CAMERA_SHARPNESS                 4
2202
2203 #define SONYPI_CAMERA_EXPOSURE_MASK             0xC
2204 #define SONYPI_CAMERA_WHITE_BALANCE_MASK        0x3
2205 #define SONYPI_CAMERA_PICTURE_MODE_MASK         0x30
2206 #define SONYPI_CAMERA_MUTE_MASK                 0x40
2207
2208 /* the rest don't need a loop until not 0xff */
2209 #define SONYPI_CAMERA_AGC                       6
2210 #define SONYPI_CAMERA_AGC_MASK                  0x30
2211 #define SONYPI_CAMERA_SHUTTER_MASK              0x7
2212
2213 #define SONYPI_CAMERA_SHUTDOWN_REQUEST          7
2214 #define SONYPI_CAMERA_CONTROL                   0x10
2215
2216 #define SONYPI_CAMERA_STATUS                    7
2217 #define SONYPI_CAMERA_STATUS_READY              0x2
2218 #define SONYPI_CAMERA_STATUS_POSITION           0x4
2219
2220 #define SONYPI_DIRECTION_BACKWARDS              0x4
2221
2222 #define SONYPI_CAMERA_REVISION                  8
2223 #define SONYPI_CAMERA_ROMVERSION                9
2224
2225 static int __sony_pic_camera_ready(void)
2226 {
2227         u8 v;
2228
2229         v = sony_pic_call2(0x8f, SONYPI_CAMERA_STATUS);
2230         return (v != 0xff && (v & SONYPI_CAMERA_STATUS_READY));
2231 }
2232
2233 static int __sony_pic_camera_off(void)
2234 {
2235         if (!camera) {
2236                 pr_warn(DRV_PFX "camera control not enabled\n");
2237                 return -ENODEV;
2238         }
2239
2240         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE,
2241                                 SONYPI_CAMERA_MUTE_MASK),
2242                         ITERATIONS_SHORT);
2243
2244         if (spic_dev.camera_power) {
2245                 sony_pic_call2(0x91, 0);
2246                 spic_dev.camera_power = 0;
2247         }
2248         return 0;
2249 }
2250
2251 static int __sony_pic_camera_on(void)
2252 {
2253         int i, j, x;
2254
2255         if (!camera) {
2256                 pr_warn(DRV_PFX "camera control not enabled\n");
2257                 return -ENODEV;
2258         }
2259
2260         if (spic_dev.camera_power)
2261                 return 0;
2262
2263         for (j = 5; j > 0; j--) {
2264
2265                 for (x = 0; x < 100 && sony_pic_call2(0x91, 0x1); x++)
2266                         msleep(10);
2267                 sony_pic_call1(0x93);
2268
2269                 for (i = 400; i > 0; i--) {
2270                         if (__sony_pic_camera_ready())
2271                                 break;
2272                         msleep(10);
2273                 }
2274                 if (i)
2275                         break;
2276         }
2277
2278         if (j == 0) {
2279                 pr_warn(DRV_PFX "failed to power on camera\n");
2280                 return -ENODEV;
2281         }
2282
2283         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTROL,
2284                                 0x5a),
2285                         ITERATIONS_SHORT);
2286
2287         spic_dev.camera_power = 1;
2288         return 0;
2289 }
2290
2291 /* External camera command (exported to the motion eye v4l driver) */
2292 int sony_pic_camera_command(int command, u8 value)
2293 {
2294         if (!camera)
2295                 return -EIO;
2296
2297         mutex_lock(&spic_dev.lock);
2298
2299         switch (command) {
2300         case SONY_PIC_COMMAND_SETCAMERA:
2301                 if (value)
2302                         __sony_pic_camera_on();
2303                 else
2304                         __sony_pic_camera_off();
2305                 break;
2306         case SONY_PIC_COMMAND_SETCAMERABRIGHTNESS:
2307                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_BRIGHTNESS, value),
2308                                 ITERATIONS_SHORT);
2309                 break;
2310         case SONY_PIC_COMMAND_SETCAMERACONTRAST:
2311                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTRAST, value),
2312                                 ITERATIONS_SHORT);
2313                 break;
2314         case SONY_PIC_COMMAND_SETCAMERAHUE:
2315                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_HUE, value),
2316                                 ITERATIONS_SHORT);
2317                 break;
2318         case SONY_PIC_COMMAND_SETCAMERACOLOR:
2319                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_COLOR, value),
2320                                 ITERATIONS_SHORT);
2321                 break;
2322         case SONY_PIC_COMMAND_SETCAMERASHARPNESS:
2323                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_SHARPNESS, value),
2324                                 ITERATIONS_SHORT);
2325                 break;
2326         case SONY_PIC_COMMAND_SETCAMERAPICTURE:
2327                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE, value),
2328                                 ITERATIONS_SHORT);
2329                 break;
2330         case SONY_PIC_COMMAND_SETCAMERAAGC:
2331                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_AGC, value),
2332                                 ITERATIONS_SHORT);
2333                 break;
2334         default:
2335                 pr_err(DRV_PFX "sony_pic_camera_command invalid: %d\n",
2336                        command);
2337                 break;
2338         }
2339         mutex_unlock(&spic_dev.lock);
2340         return 0;
2341 }
2342 EXPORT_SYMBOL(sony_pic_camera_command);
2343
2344 /* gprs/edge modem (SZ460N and SZ210P), thanks to Joshua Wise */
2345 static void __sony_pic_set_wwanpower(u8 state)
2346 {
2347         state = !!state;
2348         if (spic_dev.wwan_power == state)
2349                 return;
2350         sony_pic_call2(0xB0, state);
2351         sony_pic_call1(0x82);
2352         spic_dev.wwan_power = state;
2353 }
2354
2355 static ssize_t sony_pic_wwanpower_store(struct device *dev,
2356                 struct device_attribute *attr,
2357                 const char *buffer, size_t count)
2358 {
2359         unsigned long value;
2360         if (count > 31)
2361                 return -EINVAL;
2362
2363         value = simple_strtoul(buffer, NULL, 10);
2364         mutex_lock(&spic_dev.lock);
2365         __sony_pic_set_wwanpower(value);
2366         mutex_unlock(&spic_dev.lock);
2367
2368         return count;
2369 }
2370
2371 static ssize_t sony_pic_wwanpower_show(struct device *dev,
2372                 struct device_attribute *attr, char *buffer)
2373 {
2374         ssize_t count;
2375         mutex_lock(&spic_dev.lock);
2376         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.wwan_power);
2377         mutex_unlock(&spic_dev.lock);
2378         return count;
2379 }
2380
2381 /* bluetooth subsystem power state */
2382 static void __sony_pic_set_bluetoothpower(u8 state)
2383 {
2384         state = !!state;
2385         if (spic_dev.bluetooth_power == state)
2386                 return;
2387         sony_pic_call2(0x96, state);
2388         sony_pic_call1(0x82);
2389         spic_dev.bluetooth_power = state;
2390 }
2391
2392 static ssize_t sony_pic_bluetoothpower_store(struct device *dev,
2393                 struct device_attribute *attr,
2394                 const char *buffer, size_t count)
2395 {
2396         unsigned long value;
2397         if (count > 31)
2398                 return -EINVAL;
2399
2400         value = simple_strtoul(buffer, NULL, 10);
2401         mutex_lock(&spic_dev.lock);
2402         __sony_pic_set_bluetoothpower(value);
2403         mutex_unlock(&spic_dev.lock);
2404
2405         return count;
2406 }
2407
2408 static ssize_t sony_pic_bluetoothpower_show(struct device *dev,
2409                 struct device_attribute *attr, char *buffer)
2410 {
2411         ssize_t count = 0;
2412         mutex_lock(&spic_dev.lock);
2413         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.bluetooth_power);
2414         mutex_unlock(&spic_dev.lock);
2415         return count;
2416 }
2417
2418 /* fan speed */
2419 /* FAN0 information (reverse engineered from ACPI tables) */
2420 #define SONY_PIC_FAN0_STATUS    0x93
2421 static int sony_pic_set_fanspeed(unsigned long value)
2422 {
2423         return ec_write(SONY_PIC_FAN0_STATUS, value);
2424 }
2425
2426 static int sony_pic_get_fanspeed(u8 *value)
2427 {
2428         return ec_read(SONY_PIC_FAN0_STATUS, value);
2429 }
2430
2431 static ssize_t sony_pic_fanspeed_store(struct device *dev,
2432                 struct device_attribute *attr,
2433                 const char *buffer, size_t count)
2434 {
2435         unsigned long value;
2436         if (count > 31)
2437                 return -EINVAL;
2438
2439         value = simple_strtoul(buffer, NULL, 10);
2440         if (sony_pic_set_fanspeed(value))
2441                 return -EIO;
2442
2443         return count;
2444 }
2445
2446 static ssize_t sony_pic_fanspeed_show(struct device *dev,
2447                 struct device_attribute *attr, char *buffer)
2448 {
2449         u8 value = 0;
2450         if (sony_pic_get_fanspeed(&value))
2451                 return -EIO;
2452
2453         return snprintf(buffer, PAGE_SIZE, "%d\n", value);
2454 }
2455
2456 #define SPIC_ATTR(_name, _mode)                                 \
2457 struct device_attribute spic_attr_##_name = __ATTR(_name,       \
2458                 _mode, sony_pic_## _name ##_show,               \
2459                 sony_pic_## _name ##_store)
2460
2461 static SPIC_ATTR(bluetoothpower, 0644);
2462 static SPIC_ATTR(wwanpower, 0644);
2463 static SPIC_ATTR(fanspeed, 0644);
2464
2465 static struct attribute *spic_attributes[] = {
2466         &spic_attr_bluetoothpower.attr,
2467         &spic_attr_wwanpower.attr,
2468         &spic_attr_fanspeed.attr,
2469         NULL
2470 };
2471
2472 static struct attribute_group spic_attribute_group = {
2473         .attrs = spic_attributes
2474 };
2475
2476 /******** SONYPI compatibility **********/
2477 #ifdef CONFIG_SONYPI_COMPAT
2478
2479 /* battery / brightness / temperature  addresses */
2480 #define SONYPI_BAT_FLAGS        0x81
2481 #define SONYPI_LCD_LIGHT        0x96
2482 #define SONYPI_BAT1_PCTRM       0xa0
2483 #define SONYPI_BAT1_LEFT        0xa2
2484 #define SONYPI_BAT1_MAXRT       0xa4
2485 #define SONYPI_BAT2_PCTRM       0xa8
2486 #define SONYPI_BAT2_LEFT        0xaa
2487 #define SONYPI_BAT2_MAXRT       0xac
2488 #define SONYPI_BAT1_MAXTK       0xb0
2489 #define SONYPI_BAT1_FULL        0xb2
2490 #define SONYPI_BAT2_MAXTK       0xb8
2491 #define SONYPI_BAT2_FULL        0xba
2492 #define SONYPI_TEMP_STATUS      0xC1
2493
2494 struct sonypi_compat_s {
2495         struct fasync_struct    *fifo_async;
2496         struct kfifo            fifo;
2497         spinlock_t              fifo_lock;
2498         wait_queue_head_t       fifo_proc_list;
2499         atomic_t                open_count;
2500 };
2501 static struct sonypi_compat_s sonypi_compat = {
2502         .open_count = ATOMIC_INIT(0),
2503 };
2504
2505 static int sonypi_misc_fasync(int fd, struct file *filp, int on)
2506 {
2507         return fasync_helper(fd, filp, on, &sonypi_compat.fifo_async);
2508 }
2509
2510 static int sonypi_misc_release(struct inode *inode, struct file *file)
2511 {
2512         atomic_dec(&sonypi_compat.open_count);
2513         return 0;
2514 }
2515
2516 static int sonypi_misc_open(struct inode *inode, struct file *file)
2517 {
2518         /* Flush input queue on first open */
2519         unsigned long flags;
2520
2521         spin_lock_irqsave(&sonypi_compat.fifo_lock, flags);
2522
2523         if (atomic_inc_return(&sonypi_compat.open_count) == 1)
2524                 kfifo_reset(&sonypi_compat.fifo);
2525
2526         spin_unlock_irqrestore(&sonypi_compat.fifo_lock, flags);
2527
2528         return 0;
2529 }
2530
2531 static ssize_t sonypi_misc_read(struct file *file, char __user *buf,
2532                                 size_t count, loff_t *pos)
2533 {
2534         ssize_t ret;
2535         unsigned char c;
2536
2537         if ((kfifo_len(&sonypi_compat.fifo) == 0) &&
2538             (file->f_flags & O_NONBLOCK))
2539                 return -EAGAIN;
2540
2541         ret = wait_event_interruptible(sonypi_compat.fifo_proc_list,
2542                                        kfifo_len(&sonypi_compat.fifo) != 0);
2543         if (ret)
2544                 return ret;
2545
2546         while (ret < count &&
2547                (kfifo_out_locked(&sonypi_compat.fifo, &c, sizeof(c),
2548                           &sonypi_compat.fifo_lock) == sizeof(c))) {
2549                 if (put_user(c, buf++))
2550                         return -EFAULT;
2551                 ret++;
2552         }
2553
2554         if (ret > 0) {
2555                 struct inode *inode = file->f_path.dentry->d_inode;
2556                 inode->i_atime = current_fs_time(inode->i_sb);
2557         }
2558
2559         return ret;
2560 }
2561
2562 static unsigned int sonypi_misc_poll(struct file *file, poll_table *wait)
2563 {
2564         poll_wait(file, &sonypi_compat.fifo_proc_list, wait);
2565         if (kfifo_len(&sonypi_compat.fifo))
2566                 return POLLIN | POLLRDNORM;
2567         return 0;
2568 }
2569
2570 static int ec_read16(u8 addr, u16 *value)
2571 {
2572         u8 val_lb, val_hb;
2573         if (ec_read(addr, &val_lb))
2574                 return -1;
2575         if (ec_read(addr + 1, &val_hb))
2576                 return -1;
2577         *value = val_lb | (val_hb << 8);
2578         return 0;
2579 }
2580
2581 static long sonypi_misc_ioctl(struct file *fp, unsigned int cmd,
2582                                                         unsigned long arg)
2583 {
2584         int ret = 0;
2585         void __user *argp = (void __user *)arg;
2586         u8 val8;
2587         u16 val16;
2588         int value;
2589
2590         mutex_lock(&spic_dev.lock);
2591         switch (cmd) {
2592         case SONYPI_IOCGBRT:
2593                 if (sony_backlight_device == NULL) {
2594                         ret = -EIO;
2595                         break;
2596                 }
2597                 if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value)) {
2598                         ret = -EIO;
2599                         break;
2600                 }
2601                 val8 = ((value & 0xff) - 1) << 5;
2602                 if (copy_to_user(argp, &val8, sizeof(val8)))
2603                                 ret = -EFAULT;
2604                 break;
2605         case SONYPI_IOCSBRT:
2606                 if (sony_backlight_device == NULL) {
2607                         ret = -EIO;
2608                         break;
2609                 }
2610                 if (copy_from_user(&val8, argp, sizeof(val8))) {
2611                         ret = -EFAULT;
2612                         break;
2613                 }
2614                 if (acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
2615                                 (val8 >> 5) + 1, NULL)) {
2616                         ret = -EIO;
2617                         break;
2618                 }
2619                 /* sync the backlight device status */
2620                 sony_backlight_device->props.brightness =
2621                     sony_backlight_get_brightness(sony_backlight_device);
2622                 break;
2623         case SONYPI_IOCGBAT1CAP:
2624                 if (ec_read16(SONYPI_BAT1_FULL, &val16)) {
2625                         ret = -EIO;
2626                         break;
2627                 }
2628                 if (copy_to_user(argp, &val16, sizeof(val16)))
2629                         ret = -EFAULT;
2630                 break;
2631         case SONYPI_IOCGBAT1REM:
2632                 if (ec_read16(SONYPI_BAT1_LEFT, &val16)) {
2633                         ret = -EIO;
2634                         break;
2635                 }
2636                 if (copy_to_user(argp, &val16, sizeof(val16)))
2637                         ret = -EFAULT;
2638                 break;
2639         case SONYPI_IOCGBAT2CAP:
2640                 if (ec_read16(SONYPI_BAT2_FULL, &val16)) {
2641                         ret = -EIO;
2642                         break;
2643                 }
2644                 if (copy_to_user(argp, &val16, sizeof(val16)))
2645                         ret = -EFAULT;
2646                 break;
2647         case SONYPI_IOCGBAT2REM:
2648                 if (ec_read16(SONYPI_BAT2_LEFT, &val16)) {
2649                         ret = -EIO;
2650                         break;
2651                 }
2652                 if (copy_to_user(argp, &val16, sizeof(val16)))
2653                         ret = -EFAULT;
2654                 break;
2655         case SONYPI_IOCGBATFLAGS:
2656                 if (ec_read(SONYPI_BAT_FLAGS, &val8)) {
2657                         ret = -EIO;
2658                         break;
2659                 }
2660                 val8 &= 0x07;
2661                 if (copy_to_user(argp, &val8, sizeof(val8)))
2662                         ret = -EFAULT;
2663                 break;
2664         case SONYPI_IOCGBLUE:
2665                 val8 = spic_dev.bluetooth_power;
2666                 if (copy_to_user(argp, &val8, sizeof(val8)))
2667                         ret = -EFAULT;
2668                 break;
2669         case SONYPI_IOCSBLUE:
2670                 if (copy_from_user(&val8, argp, sizeof(val8))) {
2671                         ret = -EFAULT;
2672                         break;
2673                 }
2674                 __sony_pic_set_bluetoothpower(val8);
2675                 break;
2676         /* FAN Controls */
2677         case SONYPI_IOCGFAN:
2678                 if (sony_pic_get_fanspeed(&val8)) {
2679                         ret = -EIO;
2680                         break;
2681                 }
2682                 if (copy_to_user(argp, &val8, sizeof(val8)))
2683                         ret = -EFAULT;
2684                 break;
2685         case SONYPI_IOCSFAN:
2686                 if (copy_from_user(&val8, argp, sizeof(val8))) {
2687                         ret = -EFAULT;
2688                         break;
2689                 }
2690                 if (sony_pic_set_fanspeed(val8))
2691                         ret = -EIO;
2692                 break;
2693         /* GET Temperature (useful under APM) */
2694         case SONYPI_IOCGTEMP:
2695                 if (ec_read(SONYPI_TEMP_STATUS, &val8)) {
2696                         ret = -EIO;
2697                         break;
2698                 }
2699                 if (copy_to_user(argp, &val8, sizeof(val8)))
2700                         ret = -EFAULT;
2701                 break;
2702         default:
2703                 ret = -EINVAL;
2704         }
2705         mutex_unlock(&spic_dev.lock);
2706         return ret;
2707 }
2708
2709 static const struct file_operations sonypi_misc_fops = {
2710         .owner          = THIS_MODULE,
2711         .read           = sonypi_misc_read,
2712         .poll           = sonypi_misc_poll,
2713         .open           = sonypi_misc_open,
2714         .release        = sonypi_misc_release,
2715         .fasync         = sonypi_misc_fasync,
2716         .unlocked_ioctl = sonypi_misc_ioctl,
2717         .llseek         = noop_llseek,
2718 };
2719
2720 static struct miscdevice sonypi_misc_device = {
2721         .minor          = MISC_DYNAMIC_MINOR,
2722         .name           = "sonypi",
2723         .fops           = &sonypi_misc_fops,
2724 };
2725
2726 static void sonypi_compat_report_event(u8 event)
2727 {
2728         kfifo_in_locked(&sonypi_compat.fifo, (unsigned char *)&event,
2729                         sizeof(event), &sonypi_compat.fifo_lock);
2730         kill_fasync(&sonypi_compat.fifo_async, SIGIO, POLL_IN);
2731         wake_up_interruptible(&sonypi_compat.fifo_proc_list);
2732 }
2733
2734 static int sonypi_compat_init(void)
2735 {
2736         int error;
2737
2738         spin_lock_init(&sonypi_compat.fifo_lock);
2739         error =
2740          kfifo_alloc(&sonypi_compat.fifo, SONY_LAPTOP_BUF_SIZE, GFP_KERNEL);
2741         if (error) {
2742                 pr_err(DRV_PFX "kfifo_alloc failed\n");
2743                 return error;
2744         }
2745
2746         init_waitqueue_head(&sonypi_compat.fifo_proc_list);
2747
2748         if (minor != -1)
2749                 sonypi_misc_device.minor = minor;
2750         error = misc_register(&sonypi_misc_device);
2751         if (error) {
2752                 pr_err(DRV_PFX "misc_register failed\n");
2753                 goto err_free_kfifo;
2754         }
2755         if (minor == -1)
2756                 pr_info(DRV_PFX "device allocated minor is %d\n",
2757                        sonypi_misc_device.minor);
2758
2759         return 0;
2760
2761 err_free_kfifo:
2762         kfifo_free(&sonypi_compat.fifo);
2763         return error;
2764 }
2765
2766 static void sonypi_compat_exit(void)
2767 {
2768         misc_deregister(&sonypi_misc_device);
2769         kfifo_free(&sonypi_compat.fifo);
2770 }
2771 #else
2772 static int sonypi_compat_init(void) { return 0; }
2773 static void sonypi_compat_exit(void) { }
2774 static void sonypi_compat_report_event(u8 event) { }
2775 #endif /* CONFIG_SONYPI_COMPAT */
2776
2777 /*
2778  * ACPI callbacks
2779  */
2780 static acpi_status
2781 sony_pic_read_possible_resource(struct acpi_resource *resource, void *context)
2782 {
2783         u32 i;
2784         struct sony_pic_dev *dev = (struct sony_pic_dev *)context;
2785
2786         switch (resource->type) {
2787         case ACPI_RESOURCE_TYPE_START_DEPENDENT:
2788                 {
2789                         /* start IO enumeration */
2790                         struct sony_pic_ioport *ioport = kzalloc(sizeof(*ioport), GFP_KERNEL);
2791                         if (!ioport)
2792                                 return AE_ERROR;
2793
2794                         list_add(&ioport->list, &dev->ioports);
2795                         return AE_OK;
2796                 }
2797
2798         case ACPI_RESOURCE_TYPE_END_DEPENDENT:
2799                 /* end IO enumeration */
2800                 return AE_OK;
2801
2802         case ACPI_RESOURCE_TYPE_IRQ:
2803                 {
2804                         struct acpi_resource_irq *p = &resource->data.irq;
2805                         struct sony_pic_irq *interrupt = NULL;
2806                         if (!p || !p->interrupt_count) {
2807                                 /*
2808                                  * IRQ descriptors may have no IRQ# bits set,
2809                                  * particularly those those w/ _STA disabled
2810                                  */
2811                                 dprintk("Blank IRQ resource\n");
2812                                 return AE_OK;
2813                         }
2814                         for (i = 0; i < p->interrupt_count; i++) {
2815                                 if (!p->interrupts[i]) {
2816                                         pr_warn(DRV_PFX "Invalid IRQ %d\n",
2817                                                         p->interrupts[i]);
2818                                         continue;
2819                                 }
2820                                 interrupt = kzalloc(sizeof(*interrupt),
2821                                                 GFP_KERNEL);
2822                                 if (!interrupt)
2823                                         return AE_ERROR;
2824
2825                                 list_add(&interrupt->list, &dev->interrupts);
2826                                 interrupt->irq.triggering = p->triggering;
2827                                 interrupt->irq.polarity = p->polarity;
2828                                 interrupt->irq.sharable = p->sharable;
2829                                 interrupt->irq.interrupt_count = 1;
2830                                 interrupt->irq.interrupts[0] = p->interrupts[i];
2831                         }
2832                         return AE_OK;
2833                 }
2834         case ACPI_RESOURCE_TYPE_IO:
2835                 {
2836                         struct acpi_resource_io *io = &resource->data.io;
2837                         struct sony_pic_ioport *ioport =
2838                                 list_first_entry(&dev->ioports, struct sony_pic_ioport, list);
2839                         if (!io) {
2840                                 dprintk("Blank IO resource\n");
2841                                 return AE_OK;
2842                         }
2843
2844                         if (!ioport->io1.minimum) {
2845                                 memcpy(&ioport->io1, io, sizeof(*io));
2846                                 dprintk("IO1 at 0x%.4x (0x%.2x)\n", ioport->io1.minimum,
2847                                                 ioport->io1.address_length);
2848                         }
2849                         else if (!ioport->io2.minimum) {
2850                                 memcpy(&ioport->io2, io, sizeof(*io));
2851                                 dprintk("IO2 at 0x%.4x (0x%.2x)\n", ioport->io2.minimum,
2852                                                 ioport->io2.address_length);
2853                         }
2854                         else {
2855                                 pr_err(DRV_PFX "Unknown SPIC Type, more than 2 IO Ports\n");
2856                                 return AE_ERROR;
2857                         }
2858                         return AE_OK;
2859                 }
2860         default:
2861                 dprintk("Resource %d isn't an IRQ nor an IO port\n",
2862                                 resource->type);
2863
2864         case ACPI_RESOURCE_TYPE_END_TAG:
2865                 return AE_OK;
2866         }
2867         return AE_CTRL_TERMINATE;
2868 }
2869
2870 static int sony_pic_possible_resources(struct acpi_device *device)
2871 {
2872         int result = 0;
2873         acpi_status status = AE_OK;
2874
2875         if (!device)
2876                 return -EINVAL;
2877
2878         /* get device status */
2879         /* see acpi_pci_link_get_current acpi_pci_link_get_possible */
2880         dprintk("Evaluating _STA\n");
2881         result = acpi_bus_get_status(device);
2882         if (result) {
2883                 pr_warn(DRV_PFX "Unable to read status\n");
2884                 goto end;
2885         }
2886
2887         if (!device->status.enabled)
2888                 dprintk("Device disabled\n");
2889         else
2890                 dprintk("Device enabled\n");
2891
2892         /*
2893          * Query and parse 'method'
2894          */
2895         dprintk("Evaluating %s\n", METHOD_NAME__PRS);
2896         status = acpi_walk_resources(device->handle, METHOD_NAME__PRS,
2897                         sony_pic_read_possible_resource, &spic_dev);
2898         if (ACPI_FAILURE(status)) {
2899                 pr_warn(DRV_PFX "Failure evaluating %s\n",
2900                                 METHOD_NAME__PRS);
2901                 result = -ENODEV;
2902         }
2903 end:
2904         return result;
2905 }
2906
2907 /*
2908  *  Disable the spic device by calling its _DIS method
2909  */
2910 static int sony_pic_disable(struct acpi_device *device)
2911 {
2912         acpi_status ret = acpi_evaluate_object(device->handle, "_DIS", NULL,
2913                                                NULL);
2914
2915         if (ACPI_FAILURE(ret) && ret != AE_NOT_FOUND)
2916                 return -ENXIO;
2917
2918         dprintk("Device disabled\n");
2919         return 0;
2920 }
2921
2922
2923 /*
2924  *  Based on drivers/acpi/pci_link.c:acpi_pci_link_set
2925  *
2926  *  Call _SRS to set current resources
2927  */
2928 static int sony_pic_enable(struct acpi_device *device,
2929                 struct sony_pic_ioport *ioport, struct sony_pic_irq *irq)
2930 {
2931         acpi_status status;
2932         int result = 0;
2933         /* Type 1 resource layout is:
2934          *    IO
2935          *    IO
2936          *    IRQNoFlags
2937          *    End
2938          *
2939          * Type 2 and 3 resource layout is:
2940          *    IO
2941          *    IRQNoFlags
2942          *    End
2943          */
2944         struct {
2945                 struct acpi_resource res1;
2946                 struct acpi_resource res2;
2947                 struct acpi_resource res3;
2948                 struct acpi_resource res4;
2949         } *resource;
2950         struct acpi_buffer buffer = { 0, NULL };
2951
2952         if (!ioport || !irq)
2953                 return -EINVAL;
2954
2955         /* init acpi_buffer */
2956         resource = kzalloc(sizeof(*resource) + 1, GFP_KERNEL);
2957         if (!resource)
2958                 return -ENOMEM;
2959
2960         buffer.length = sizeof(*resource) + 1;
2961         buffer.pointer = resource;
2962
2963         /* setup Type 1 resources */
2964         if (spic_dev.model == SONYPI_DEVICE_TYPE1) {
2965
2966                 /* setup io resources */
2967                 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
2968                 resource->res1.length = sizeof(struct acpi_resource);
2969                 memcpy(&resource->res1.data.io, &ioport->io1,
2970                                 sizeof(struct acpi_resource_io));
2971
2972                 resource->res2.type = ACPI_RESOURCE_TYPE_IO;
2973                 resource->res2.length = sizeof(struct acpi_resource);
2974                 memcpy(&resource->res2.data.io, &ioport->io2,
2975                                 sizeof(struct acpi_resource_io));
2976
2977                 /* setup irq resource */
2978                 resource->res3.type = ACPI_RESOURCE_TYPE_IRQ;
2979                 resource->res3.length = sizeof(struct acpi_resource);
2980                 memcpy(&resource->res3.data.irq, &irq->irq,
2981                                 sizeof(struct acpi_resource_irq));
2982                 /* we requested a shared irq */
2983                 resource->res3.data.irq.sharable = ACPI_SHARED;
2984
2985                 resource->res4.type = ACPI_RESOURCE_TYPE_END_TAG;
2986
2987         }
2988         /* setup Type 2/3 resources */
2989         else {
2990                 /* setup io resource */
2991                 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
2992                 resource->res1.length = sizeof(struct acpi_resource);
2993                 memcpy(&resource->res1.data.io, &ioport->io1,
2994                                 sizeof(struct acpi_resource_io));
2995
2996                 /* setup irq resource */
2997                 resource->res2.type = ACPI_RESOURCE_TYPE_IRQ;
2998                 resource->res2.length = sizeof(struct acpi_resource);
2999                 memcpy(&resource->res2.data.irq, &irq->irq,
3000                                 sizeof(struct acpi_resource_irq));
3001                 /* we requested a shared irq */
3002                 resource->res2.data.irq.sharable = ACPI_SHARED;
3003
3004                 resource->res3.type = ACPI_RESOURCE_TYPE_END_TAG;
3005         }
3006
3007         /* Attempt to set the resource */
3008         dprintk("Evaluating _SRS\n");
3009         status = acpi_set_current_resources(device->handle, &buffer);
3010
3011         /* check for total failure */
3012         if (ACPI_FAILURE(status)) {
3013                 pr_err(DRV_PFX "Error evaluating _SRS\n");
3014                 result = -ENODEV;
3015                 goto end;
3016         }
3017
3018         /* Necessary device initializations calls (from sonypi) */
3019         sony_pic_call1(0x82);
3020         sony_pic_call2(0x81, 0xff);
3021         sony_pic_call1(compat ? 0x92 : 0x82);
3022
3023 end:
3024         kfree(resource);
3025         return result;
3026 }
3027
3028 /*****************
3029  *
3030  * ISR: some event is available
3031  *
3032  *****************/
3033 static irqreturn_t sony_pic_irq(int irq, void *dev_id)
3034 {
3035         int i, j;
3036         u8 ev = 0;
3037         u8 data_mask = 0;
3038         u8 device_event = 0;
3039
3040         struct sony_pic_dev *dev = (struct sony_pic_dev *) dev_id;
3041
3042         ev = inb_p(dev->cur_ioport->io1.minimum);
3043         if (dev->cur_ioport->io2.minimum)
3044                 data_mask = inb_p(dev->cur_ioport->io2.minimum);
3045         else
3046                 data_mask = inb_p(dev->cur_ioport->io1.minimum +
3047                                 dev->evport_offset);
3048
3049         dprintk("event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
3050                         ev, data_mask, dev->cur_ioport->io1.minimum,
3051                         dev->evport_offset);
3052
3053         if (ev == 0x00 || ev == 0xff)
3054                 return IRQ_HANDLED;
3055
3056         for (i = 0; dev->event_types[i].mask; i++) {
3057
3058                 if ((data_mask & dev->event_types[i].data) !=
3059                     dev->event_types[i].data)
3060                         continue;
3061
3062                 if (!(mask & dev->event_types[i].mask))
3063                         continue;
3064
3065                 for (j = 0; dev->event_types[i].events[j].event; j++) {
3066                         if (ev == dev->event_types[i].events[j].data) {
3067                                 device_event =
3068                                         dev->event_types[i].events[j].event;
3069                                 /* some events may require ignoring */
3070                                 if (!device_event)
3071                                         return IRQ_HANDLED;
3072                                 goto found;
3073                         }
3074                 }
3075         }
3076         /* Still not able to decode the event try to pass
3077          * it over to the minidriver
3078          */
3079         if (dev->handle_irq && dev->handle_irq(data_mask, ev) == 0)
3080                 return IRQ_HANDLED;
3081
3082         dprintk("unknown event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
3083                         ev, data_mask, dev->cur_ioport->io1.minimum,
3084                         dev->evport_offset);
3085         return IRQ_HANDLED;
3086
3087 found:
3088         sony_laptop_report_input_event(device_event);
3089         acpi_bus_generate_proc_event(dev->acpi_dev, 1, device_event);
3090         sonypi_compat_report_event(device_event);
3091         return IRQ_HANDLED;
3092 }
3093
3094 /*****************
3095  *
3096  *  ACPI driver
3097  *
3098  *****************/
3099 static int sony_pic_remove(struct acpi_device *device, int type)
3100 {
3101         struct sony_pic_ioport *io, *tmp_io;
3102         struct sony_pic_irq *irq, *tmp_irq;
3103
3104         if (sony_pic_disable(device)) {
3105                 pr_err(DRV_PFX "Couldn't disable device.\n");
3106                 return -ENXIO;
3107         }
3108
3109         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
3110         release_region(spic_dev.cur_ioport->io1.minimum,
3111                         spic_dev.cur_ioport->io1.address_length);
3112         if (spic_dev.cur_ioport->io2.minimum)
3113                 release_region(spic_dev.cur_ioport->io2.minimum,
3114                                 spic_dev.cur_ioport->io2.address_length);
3115
3116         sonypi_compat_exit();
3117
3118         sony_laptop_remove_input();
3119
3120         /* pf attrs */
3121         sysfs_remove_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
3122         sony_pf_remove();
3123
3124         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
3125                 list_del(&io->list);
3126                 kfree(io);
3127         }
3128         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
3129                 list_del(&irq->list);
3130                 kfree(irq);
3131         }
3132         spic_dev.cur_ioport = NULL;
3133         spic_dev.cur_irq = NULL;
3134
3135         dprintk(SONY_PIC_DRIVER_NAME " removed.\n");
3136         return 0;
3137 }
3138
3139 static int sony_pic_add(struct acpi_device *device)
3140 {
3141         int result;
3142         struct sony_pic_ioport *io, *tmp_io;
3143         struct sony_pic_irq *irq, *tmp_irq;
3144
3145         pr_info(DRV_PFX "%s v%s.\n", SONY_PIC_DRIVER_NAME,
3146                         SONY_LAPTOP_DRIVER_VERSION);
3147
3148         spic_dev.acpi_dev = device;
3149         strcpy(acpi_device_class(device), "sony/hotkey");
3150         sony_pic_detect_device_type(&spic_dev);
3151         mutex_init(&spic_dev.lock);
3152
3153         /* read _PRS resources */
3154         result = sony_pic_possible_resources(device);
3155         if (result) {
3156                 pr_err(DRV_PFX "Unable to read possible resources.\n");
3157                 goto err_free_resources;
3158         }
3159
3160         /* setup input devices and helper fifo */
3161         result = sony_laptop_setup_input(device);
3162         if (result) {
3163                 pr_err(DRV_PFX "Unable to create input devices.\n");
3164                 goto err_free_resources;
3165         }
3166
3167         if (sonypi_compat_init())
3168                 goto err_remove_input;
3169
3170         /* request io port */
3171         list_for_each_entry_reverse(io, &spic_dev.ioports, list) {
3172                 if (request_region(io->io1.minimum, io->io1.address_length,
3173                                         "Sony Programmable I/O Device")) {
3174                         dprintk("I/O port1: 0x%.4x (0x%.4x) + 0x%.2x\n",
3175                                         io->io1.minimum, io->io1.maximum,
3176                                         io->io1.address_length);
3177                         /* Type 1 have 2 ioports */
3178                         if (io->io2.minimum) {
3179                                 if (request_region(io->io2.minimum,
3180                                                 io->io2.address_length,
3181                                                 "Sony Programmable I/O Device")) {
3182                                         dprintk("I/O port2: 0x%.4x (0x%.4x) + 0x%.2x\n",
3183                                                         io->io2.minimum, io->io2.maximum,
3184                                                         io->io2.address_length);
3185                                         spic_dev.cur_ioport = io;
3186                                         break;
3187                                 }
3188                                 else {
3189                                         dprintk("Unable to get I/O port2: "
3190                                                         "0x%.4x (0x%.4x) + 0x%.2x\n",
3191                                                         io->io2.minimum, io->io2.maximum,
3192                                                         io->io2.address_length);
3193                                         release_region(io->io1.minimum,
3194                                                         io->io1.address_length);
3195                                 }
3196                         }
3197                         else {
3198                                 spic_dev.cur_ioport = io;
3199                                 break;
3200                         }
3201                 }
3202         }
3203         if (!spic_dev.cur_ioport) {
3204                 pr_err(DRV_PFX "Failed to request_region.\n");
3205                 result = -ENODEV;
3206                 goto err_remove_compat;
3207         }
3208
3209         /* request IRQ */
3210         list_for_each_entry_reverse(irq, &spic_dev.interrupts, list) {
3211                 if (!request_irq(irq->irq.interrupts[0], sony_pic_irq,
3212                                         IRQF_DISABLED, "sony-laptop", &spic_dev)) {
3213                         dprintk("IRQ: %d - triggering: %d - "
3214                                         "polarity: %d - shr: %d\n",
3215                                         irq->irq.interrupts[0],
3216                                         irq->irq.triggering,
3217                                         irq->irq.polarity,
3218                                         irq->irq.sharable);
3219                         spic_dev.cur_irq = irq;
3220                         break;
3221                 }
3222         }
3223         if (!spic_dev.cur_irq) {
3224                 pr_err(DRV_PFX "Failed to request_irq.\n");
3225                 result = -ENODEV;
3226                 goto err_release_region;
3227         }
3228
3229         /* set resource status _SRS */
3230         result = sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
3231         if (result) {
3232                 pr_err(DRV_PFX "Couldn't enable device.\n");
3233                 goto err_free_irq;
3234         }
3235
3236         spic_dev.bluetooth_power = -1;
3237         /* create device attributes */
3238         result = sony_pf_add();
3239         if (result)
3240                 goto err_disable_device;
3241
3242         result = sysfs_create_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
3243         if (result)
3244                 goto err_remove_pf;
3245
3246         return 0;
3247
3248 err_remove_pf:
3249         sony_pf_remove();
3250
3251 err_disable_device:
3252         sony_pic_disable(device);
3253
3254 err_free_irq:
3255         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
3256
3257 err_release_region:
3258         release_region(spic_dev.cur_ioport->io1.minimum,
3259                         spic_dev.cur_ioport->io1.address_length);
3260         if (spic_dev.cur_ioport->io2.minimum)
3261                 release_region(spic_dev.cur_ioport->io2.minimum,
3262                                 spic_dev.cur_ioport->io2.address_length);
3263
3264 err_remove_compat:
3265         sonypi_compat_exit();
3266
3267 err_remove_input:
3268         sony_laptop_remove_input();
3269
3270 err_free_resources:
3271         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
3272                 list_del(&io->list);
3273                 kfree(io);
3274         }
3275         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
3276                 list_del(&irq->list);
3277                 kfree(irq);
3278         }
3279         spic_dev.cur_ioport = NULL;
3280         spic_dev.cur_irq = NULL;
3281
3282         return result;
3283 }
3284
3285 static int sony_pic_suspend(struct acpi_device *device, pm_message_t state)
3286 {
3287         if (sony_pic_disable(device))
3288                 return -ENXIO;
3289         return 0;
3290 }
3291
3292 static int sony_pic_resume(struct acpi_device *device)
3293 {
3294         sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
3295         return 0;
3296 }
3297
3298 static const struct acpi_device_id sony_pic_device_ids[] = {
3299         {SONY_PIC_HID, 0},
3300         {"", 0},
3301 };
3302
3303 static struct acpi_driver sony_pic_driver = {
3304         .name = SONY_PIC_DRIVER_NAME,
3305         .class = SONY_PIC_CLASS,
3306         .ids = sony_pic_device_ids,
3307         .owner = THIS_MODULE,
3308         .ops = {
3309                 .add = sony_pic_add,
3310                 .remove = sony_pic_remove,
3311                 .suspend = sony_pic_suspend,
3312                 .resume = sony_pic_resume,
3313                 },
3314 };
3315
3316 static struct dmi_system_id __initdata sonypi_dmi_table[] = {
3317         {
3318                 .ident = "Sony Vaio",
3319                 .matches = {
3320                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
3321                         DMI_MATCH(DMI_PRODUCT_NAME, "PCG-"),
3322                 },
3323         },
3324         {
3325                 .ident = "Sony Vaio",
3326                 .matches = {
3327                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
3328                         DMI_MATCH(DMI_PRODUCT_NAME, "VGN-"),
3329                 },
3330         },
3331         { }
3332 };
3333
3334 static int __init sony_laptop_init(void)
3335 {
3336         int result;
3337
3338         if (!no_spic && dmi_check_system(sonypi_dmi_table)) {
3339                 result = acpi_bus_register_driver(&sony_pic_driver);
3340                 if (result) {
3341                         pr_err(DRV_PFX "Unable to register SPIC driver.");
3342                         goto out;
3343                 }
3344                 spic_drv_registered = 1;
3345         }
3346
3347         result = acpi_bus_register_driver(&sony_nc_driver);
3348         if (result) {
3349                 pr_err(DRV_PFX "Unable to register SNC driver.");
3350                 goto out_unregister_pic;
3351         }
3352
3353         return 0;
3354
3355 out_unregister_pic:
3356         if (spic_drv_registered)
3357                 acpi_bus_unregister_driver(&sony_pic_driver);
3358 out:
3359         return result;
3360 }
3361
3362 static void __exit sony_laptop_exit(void)
3363 {
3364         acpi_bus_unregister_driver(&sony_nc_driver);
3365         if (spic_drv_registered)
3366                 acpi_bus_unregister_driver(&sony_pic_driver);
3367 }
3368
3369 module_init(sony_laptop_init);
3370 module_exit(sony_laptop_exit);