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 struct sony_backlight_props {
 938         struct backlight_device *dev;
 939         int                     handle;
 940         u8                      offset;
 941         u8                      maxlvl;
 942 };
 943 struct sony_backlight_props sony_bl_props;
 944
 945 static int sony_backlight_update_status(struct backlight_device *bd)
 946 {
 947         return acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
 948                                 bd->props.brightness + 1, NULL);
 949 }
 950
 951 static int sony_backlight_get_brightness(struct backlight_device *bd)
 952 {
 953         int value;
 954
 955         if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value))
 956                 return 0;
 957         /* brightness levels are 1-based, while backlight ones are 0-based */
 958         return value - 1;
 959 }
 960
 961 static int sony_nc_get_brightness_ng(struct backlight_device *bd)
 962 {
 963         int result;
 964         int *handle = (int *)bl_get_data(bd);
 965         struct sony_backlight_props *sdev =
 966                 (struct sony_backlight_props *)bl_get_data(bd);
 967
 968         sony_call_snc_handle(sdev->handle, 0x0200, &result);
 969
 970         return (result & 0xff) - sdev->offset;
 971 }
 972
 973 static int sony_nc_update_status_ng(struct backlight_device *bd)
 974 {
 975         int value, result;
 976         int *handle = (int *)bl_get_data(bd);
 977         struct sony_backlight_props *sdev =
 978                 (struct sony_backlight_props *)bl_get_data(bd);
 979
 980         value = bd->props.brightness + sdev->offset;
 981         if (sony_call_snc_handle(sdev->handle, 0x0100 | (value << 16), &result))
 982                 return -EIO;
 983
 984         return value;
 985 }
 986
 987 static const struct backlight_ops sony_backlight_ops = {
 988         .options = BL_CORE_SUSPENDRESUME,
 989         .update_status = sony_backlight_update_status,
 990         .get_brightness = sony_backlight_get_brightness,
 991 };
 992 static const struct backlight_ops sony_backlight_ng_ops = {
 993         .options = BL_CORE_SUSPENDRESUME,
 994         .update_status = sony_nc_update_status_ng,
 995         .get_brightness = sony_nc_get_brightness_ng,
 996 };
 997
 998 /*
 999  * New SNC-only Vaios event mapping to driver known keys
1000  */
1001 struct sony_nc_event {
1002         u8      data;
1003         u8      event;
1004 };
1005
1006 static struct sony_nc_event sony_100_events[] = {
1007         { 0x90, SONYPI_EVENT_PKEY_P1 },
1008         { 0x10, SONYPI_EVENT_ANYBUTTON_RELEASED },
1009         { 0x91, SONYPI_EVENT_PKEY_P2 },
1010         { 0x11, SONYPI_EVENT_ANYBUTTON_RELEASED },
1011         { 0x81, SONYPI_EVENT_FNKEY_F1 },
1012         { 0x01, SONYPI_EVENT_FNKEY_RELEASED },
1013         { 0x82, SONYPI_EVENT_FNKEY_F2 },
1014         { 0x02, SONYPI_EVENT_FNKEY_RELEASED },
1015         { 0x83, SONYPI_EVENT_FNKEY_F3 },
1016         { 0x03, SONYPI_EVENT_FNKEY_RELEASED },
1017         { 0x84, SONYPI_EVENT_FNKEY_F4 },
1018         { 0x04, SONYPI_EVENT_FNKEY_RELEASED },
1019         { 0x85, SONYPI_EVENT_FNKEY_F5 },
1020         { 0x05, SONYPI_EVENT_FNKEY_RELEASED },
1021         { 0x86, SONYPI_EVENT_FNKEY_F6 },
1022         { 0x06, SONYPI_EVENT_FNKEY_RELEASED },
1023         { 0x87, SONYPI_EVENT_FNKEY_F7 },
1024         { 0x07, SONYPI_EVENT_FNKEY_RELEASED },
1025         { 0x89, SONYPI_EVENT_FNKEY_F9 },
1026         { 0x09, SONYPI_EVENT_FNKEY_RELEASED },
1027         { 0x8A, SONYPI_EVENT_FNKEY_F10 },
1028         { 0x0A, SONYPI_EVENT_FNKEY_RELEASED },
1029         { 0x8C, SONYPI_EVENT_FNKEY_F12 },
1030         { 0x0C, SONYPI_EVENT_FNKEY_RELEASED },
1031         { 0x9d, SONYPI_EVENT_ZOOM_PRESSED },
1032         { 0x1d, SONYPI_EVENT_ANYBUTTON_RELEASED },
1033         { 0x9f, SONYPI_EVENT_CD_EJECT_PRESSED },
1034         { 0x1f, SONYPI_EVENT_ANYBUTTON_RELEASED },
1035         { 0xa1, SONYPI_EVENT_MEDIA_PRESSED },
1036         { 0x21, SONYPI_EVENT_ANYBUTTON_RELEASED },
1037         { 0xa4, SONYPI_EVENT_CD_EJECT_PRESSED },
1038         { 0x24, SONYPI_EVENT_ANYBUTTON_RELEASED },
1039         { 0xa5, SONYPI_EVENT_VENDOR_PRESSED },
1040         { 0x25, SONYPI_EVENT_ANYBUTTON_RELEASED },
1041         { 0xa6, SONYPI_EVENT_HELP_PRESSED },
1042         { 0x26, SONYPI_EVENT_ANYBUTTON_RELEASED },
1043         { 0, 0 },
1044 };
1045
1046 static struct sony_nc_event sony_127_events[] = {
1047         { 0x81, SONYPI_EVENT_MODEKEY_PRESSED },
1048         { 0x01, SONYPI_EVENT_ANYBUTTON_RELEASED },
1049         { 0x82, SONYPI_EVENT_PKEY_P1 },
1050         { 0x02, SONYPI_EVENT_ANYBUTTON_RELEASED },
1051         { 0x83, SONYPI_EVENT_PKEY_P2 },
1052         { 0x03, SONYPI_EVENT_ANYBUTTON_RELEASED },
1053         { 0x84, SONYPI_EVENT_PKEY_P3 },
1054         { 0x04, SONYPI_EVENT_ANYBUTTON_RELEASED },
1055         { 0x85, SONYPI_EVENT_PKEY_P4 },
1056         { 0x05, SONYPI_EVENT_ANYBUTTON_RELEASED },
1057         { 0x86, SONYPI_EVENT_PKEY_P5 },
1058         { 0x06, SONYPI_EVENT_ANYBUTTON_RELEASED },
1059         { 0x87, SONYPI_EVENT_SETTINGKEY_PRESSED },
1060         { 0x07, SONYPI_EVENT_ANYBUTTON_RELEASED },
1061         { 0, 0 },
1062 };
1063
1064 /*
1065  * ACPI callbacks
1066  */
1067 static void sony_nc_notify(struct acpi_device *device, u32 event)
1068 {
1069         u32 ev = event;
1070
1071         if (ev >= 0x90) {
1072                 /* New-style event */
1073                 int result;
1074                 int key_handle = 0;
1075                 ev -= 0x90;
1076
1077                 if (sony_find_snc_handle(0x100) == ev)
1078                         key_handle = 0x100;
1079                 if (sony_find_snc_handle(0x127) == ev)
1080                         key_handle = 0x127;
1081
1082                 if (key_handle) {
1083                         struct sony_nc_event *key_event;
1084
1085                         if (sony_call_snc_handle(key_handle, 0x200, &result)) {
1086                                 dprintk("sony_nc_notify, unable to decode"
1087                                         " event 0x%.2x 0x%.2x\n", key_handle,
1088                                         ev);
1089                                 /* restore the original event */
1090                                 ev = event;
1091                         } else {
1092                                 ev = result & 0xFF;
1093
1094                                 if (key_handle == 0x100)
1095                                         key_event = sony_100_events;
1096                                 else
1097                                         key_event = sony_127_events;
1098
1099                                 for (; key_event->data; key_event++) {
1100                                         if (key_event->data == ev) {
1101                                                 ev = key_event->event;
1102                                                 break;
1103                                         }
1104                                 }
1105
1106                                 if (!key_event->data)
1107                                         pr_info(DRV_PFX
1108                                                         "Unknown event: 0x%x 0x%x\n",
1109                                                         key_handle,
1110                                                         ev);
1111                                 else
1112                                         sony_laptop_report_input_event(ev);
1113                         }
1114                 } else if (sony_find_snc_handle(sony_rfkill_handle) == ev) {
1115                         sony_nc_rfkill_update();
1116                         return;
1117                 }
1118         } else
1119                 sony_laptop_report_input_event(ev);
1120
1121         dprintk("sony_nc_notify, event: 0x%.2x\n", ev);
1122         acpi_bus_generate_proc_event(sony_nc_acpi_device, 1, ev);
1123 }
1124
1125 static acpi_status sony_walk_callback(acpi_handle handle, u32 level,
1126                                       void *context, void **return_value)
1127 {
1128         struct acpi_device_info *info;
1129
1130         if (ACPI_SUCCESS(acpi_get_object_info(handle, &info))) {
1131                 pr_warn(DRV_PFX "method: name: %4.4s, args %X\n",
1132                         (char *)&info->name, info->param_count);
1133
1134                 kfree(info);
1135         }
1136
1137         return AE_OK;
1138 }
1139
1140 /*
1141  * ACPI device
1142  */
1143 static int sony_nc_function_setup(struct acpi_device *device)
1144 {
1145         int result;
1146
1147         /* Enable all events */
1148         acpi_callsetfunc(sony_nc_acpi_handle, "SN02", 0xffff, &result);
1149
1150         /* Setup hotkeys */
1151         sony_call_snc_handle(0x0100, 0, &result);
1152         sony_call_snc_handle(0x0101, 0, &result);
1153         sony_call_snc_handle(0x0102, 0x100, &result);
1154         sony_call_snc_handle(0x0127, 0, &result);
1155
1156         return 0;
1157 }
1158
1159 static int sony_nc_resume(struct acpi_device *device)
1160 {
1161         struct sony_nc_value *item;
1162         acpi_handle handle;
1163
1164         for (item = sony_nc_values; item->name; item++) {
1165                 int ret;
1166
1167                 if (!item->valid)
1168                         continue;
1169                 ret = acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset,
1170                                        item->value, NULL);
1171                 if (ret < 0) {
1172                         pr_err(DRV_PFX "%s: %d\n", __func__, ret);
1173                         break;
1174                 }
1175         }
1176
1177         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "ECON",
1178                                          &handle))) {
1179                 if (acpi_callsetfunc(sony_nc_acpi_handle, "ECON", 1, NULL))
1180                         dprintk("ECON Method failed\n");
1181         }
1182
1183         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "SN00",
1184                                          &handle))) {
1185                 dprintk("Doing SNC setup\n");
1186                 sony_nc_function_setup(device);
1187         }
1188
1189         /* re-read rfkill state */
1190         sony_nc_rfkill_update();
1191
1192         /* restore kbd backlight states */
1193         sony_nc_kbd_backlight_resume();
1194
1195         return 0;
1196 }
1197
1198 static void sony_nc_rfkill_cleanup(void)
1199 {
1200         int i;
1201
1202         for (i = 0; i < N_SONY_RFKILL; i++) {
1203                 if (sony_rfkill_devices[i]) {
1204                         rfkill_unregister(sony_rfkill_devices[i]);
1205                         rfkill_destroy(sony_rfkill_devices[i]);
1206                 }
1207         }
1208 }
1209
1210 static int sony_nc_rfkill_set(void *data, bool blocked)
1211 {
1212         int result;
1213         int argument = sony_rfkill_address[(long) data] + 0x100;
1214
1215         if (!blocked)
1216                 argument |= 0xff0000;
1217
1218         return sony_call_snc_handle(sony_rfkill_handle, argument, &result);
1219 }
1220
1221 static const struct rfkill_ops sony_rfkill_ops = {
1222         .set_block = sony_nc_rfkill_set,
1223 };
1224
1225 static int sony_nc_setup_rfkill(struct acpi_device *device,
1226                                 enum sony_nc_rfkill nc_type)
1227 {
1228         int err = 0;
1229         struct rfkill *rfk;
1230         enum rfkill_type type;
1231         const char *name;
1232         int result;
1233         bool hwblock;
1234
1235         switch (nc_type) {
1236         case SONY_WIFI:
1237                 type = RFKILL_TYPE_WLAN;
1238                 name = "sony-wifi";
1239                 break;
1240         case SONY_BLUETOOTH:
1241                 type = RFKILL_TYPE_BLUETOOTH;
1242                 name = "sony-bluetooth";
1243                 break;
1244         case SONY_WWAN:
1245                 type = RFKILL_TYPE_WWAN;
1246                 name = "sony-wwan";
1247                 break;
1248         case SONY_WIMAX:
1249                 type = RFKILL_TYPE_WIMAX;
1250                 name = "sony-wimax";
1251                 break;
1252         default:
1253                 return -EINVAL;
1254         }
1255
1256         rfk = rfkill_alloc(name, &device->dev, type,
1257                            &sony_rfkill_ops, (void *)nc_type);
1258         if (!rfk)
1259                 return -ENOMEM;
1260
1261         sony_call_snc_handle(sony_rfkill_handle, 0x200, &result);
1262         hwblock = !(result & 0x1);
1263         rfkill_set_hw_state(rfk, hwblock);
1264
1265         err = rfkill_register(rfk);
1266         if (err) {
1267                 rfkill_destroy(rfk);
1268                 return err;
1269         }
1270         sony_rfkill_devices[nc_type] = rfk;
1271         return err;
1272 }
1273
1274 static void sony_nc_rfkill_update(void)
1275 {
1276         enum sony_nc_rfkill i;
1277         int result;
1278         bool hwblock;
1279
1280         sony_call_snc_handle(sony_rfkill_handle, 0x200, &result);
1281         hwblock = !(result & 0x1);
1282
1283         for (i = 0; i < N_SONY_RFKILL; i++) {
1284                 int argument = sony_rfkill_address[i];
1285
1286                 if (!sony_rfkill_devices[i])
1287                         continue;
1288
1289                 if (hwblock) {
1290                         if (rfkill_set_hw_state(sony_rfkill_devices[i], true)) {
1291                                 /* we already know we're blocked */
1292                         }
1293                         continue;
1294                 }
1295
1296                 sony_call_snc_handle(sony_rfkill_handle, argument, &result);
1297                 rfkill_set_states(sony_rfkill_devices[i],
1298                                   !(result & 0xf), false);
1299         }
1300 }
1301
1302 static void sony_nc_rfkill_setup(struct acpi_device *device)
1303 {
1304         int offset;
1305         u8 dev_code, i;
1306         acpi_status status;
1307         struct acpi_object_list params;
1308         union acpi_object in_obj;
1309         union acpi_object *device_enum;
1310         struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
1311
1312         offset = sony_find_snc_handle(0x124);
1313         if (offset == -1) {
1314                 offset = sony_find_snc_handle(0x135);
1315                 if (offset == -1)
1316                         return;
1317                 else
1318                         sony_rfkill_handle = 0x135;
1319         } else
1320                 sony_rfkill_handle = 0x124;
1321         dprintk("Found rkfill handle: 0x%.4x\n", sony_rfkill_handle);
1322
1323         /* need to read the whole buffer returned by the acpi call to SN06
1324          * here otherwise we may miss some features
1325          */
1326         params.count = 1;
1327         params.pointer = &in_obj;
1328         in_obj.type = ACPI_TYPE_INTEGER;
1329         in_obj.integer.value = offset;
1330         status = acpi_evaluate_object(sony_nc_acpi_handle, "SN06", &params,
1331                         &buffer);
1332         if (ACPI_FAILURE(status)) {
1333                 dprintk("Radio device enumeration failed\n");
1334                 return;
1335         }
1336
1337         device_enum = (union acpi_object *) buffer.pointer;
1338         if (!device_enum) {
1339                 pr_err(DRV_PFX "No SN06 return object.");
1340                 goto out_no_enum;
1341         }
1342         if (device_enum->type != ACPI_TYPE_BUFFER) {
1343                 pr_err(DRV_PFX "Invalid SN06 return object 0x%.2x\n",
1344                                 device_enum->type);
1345                 goto out_no_enum;
1346         }
1347
1348         /* the buffer is filled with magic numbers describing the devices
1349          * available, 0xff terminates the enumeration
1350          */
1351         for (i = 0; i < device_enum->buffer.length; i++) {
1352
1353                 dev_code = *(device_enum->buffer.pointer + i);
1354                 if (dev_code == 0xff)
1355                         break;
1356
1357                 dprintk("Radio devices, looking at 0x%.2x\n", dev_code);
1358
1359                 if (dev_code == 0 && !sony_rfkill_devices[SONY_WIFI])
1360                         sony_nc_setup_rfkill(device, SONY_WIFI);
1361
1362                 if (dev_code == 0x10 && !sony_rfkill_devices[SONY_BLUETOOTH])
1363                         sony_nc_setup_rfkill(device, SONY_BLUETOOTH);
1364
1365                 if ((0xf0 & dev_code) == 0x20 &&
1366                                 !sony_rfkill_devices[SONY_WWAN])
1367                         sony_nc_setup_rfkill(device, SONY_WWAN);
1368
1369                 if (dev_code == 0x30 && !sony_rfkill_devices[SONY_WIMAX])
1370                         sony_nc_setup_rfkill(device, SONY_WIMAX);
1371         }
1372
1373 out_no_enum:
1374         kfree(buffer.pointer);
1375         return;
1376 }
1377
1378 /* Keyboard backlight feature */
1379 #define KBDBL_HANDLER   0x137
1380 #define KBDBL_PRESENT   0xB00
1381 #define SET_MODE        0xC00
1382 #define SET_STATE       0xD00
1383 #define SET_TIMEOUT     0xE00
1384
1385 struct kbd_backlight {
1386         int mode;
1387         int timeout;
1388         struct device_attribute mode_attr;
1389         struct device_attribute timeout_attr;
1390 };
1391
1392 static struct kbd_backlight *kbdbl_handle;
1393
1394 static ssize_t __sony_nc_kbd_backlight_mode_set(u8 value)
1395 {
1396         int result;
1397
1398         if (value > 1)
1399                 return -EINVAL;
1400
1401         if (sony_call_snc_handle(KBDBL_HANDLER,
1402                                 (value << 0x10) | SET_MODE, &result))
1403                 return -EIO;
1404
1405         /* Try to turn the light on/off immediately */
1406         sony_call_snc_handle(KBDBL_HANDLER, (value << 0x10) | SET_STATE,
1407                         &result);
1408
1409         kbdbl_handle->mode = value;
1410
1411         return 0;
1412 }
1413
1414 static ssize_t sony_nc_kbd_backlight_mode_store(struct device *dev,
1415                 struct device_attribute *attr,
1416                 const char *buffer, size_t count)
1417 {
1418         int ret = 0;
1419         unsigned long value;
1420
1421         if (count > 31)
1422                 return -EINVAL;
1423
1424         if (strict_strtoul(buffer, 10, &value))
1425                 return -EINVAL;
1426
1427         ret = __sony_nc_kbd_backlight_mode_set(value);
1428         if (ret < 0)
1429                 return ret;
1430
1431         return count;
1432 }
1433
1434 static ssize_t sony_nc_kbd_backlight_mode_show(struct device *dev,
1435                 struct device_attribute *attr, char *buffer)
1436 {
1437         ssize_t count = 0;
1438         count = snprintf(buffer, PAGE_SIZE, "%d\n", kbdbl_handle->mode);
1439         return count;
1440 }
1441
1442 static int __sony_nc_kbd_backlight_timeout_set(u8 value)
1443 {
1444         int result;
1445
1446         if (value > 3)
1447                 return -EINVAL;
1448
1449         if (sony_call_snc_handle(KBDBL_HANDLER,
1450                                 (value << 0x10) | SET_TIMEOUT, &result))
1451                 return -EIO;
1452
1453         kbdbl_handle->timeout = value;
1454
1455         return 0;
1456 }
1457
1458 static ssize_t sony_nc_kbd_backlight_timeout_store(struct device *dev,
1459                 struct device_attribute *attr,
1460                 const char *buffer, size_t count)
1461 {
1462         int ret = 0;
1463         unsigned long value;
1464
1465         if (count > 31)
1466                 return -EINVAL;
1467
1468         if (strict_strtoul(buffer, 10, &value))
1469                 return -EINVAL;
1470
1471         ret = __sony_nc_kbd_backlight_timeout_set(value);
1472         if (ret < 0)
1473                 return ret;
1474
1475         return count;
1476 }
1477
1478 static ssize_t sony_nc_kbd_backlight_timeout_show(struct device *dev,
1479                 struct device_attribute *attr, char *buffer)
1480 {
1481         ssize_t count = 0;
1482         count = snprintf(buffer, PAGE_SIZE, "%d\n", kbdbl_handle->timeout);
1483         return count;
1484 }
1485
1486 static int sony_nc_kbd_backlight_setup(struct platform_device *pd)
1487 {
1488         int result;
1489
1490         if (sony_call_snc_handle(KBDBL_HANDLER, KBDBL_PRESENT, &result))
1491                 return 0;
1492         if (!(result & 0x02))
1493                 return 0;
1494
1495         kbdbl_handle = kzalloc(sizeof(*kbdbl_handle), GFP_KERNEL);
1496         if (!kbdbl_handle)
1497                 return -ENOMEM;
1498
1499         sysfs_attr_init(&kbdbl_handle->mode_attr.attr);
1500         kbdbl_handle->mode_attr.attr.name = "kbd_backlight";
1501         kbdbl_handle->mode_attr.attr.mode = S_IRUGO | S_IWUSR;
1502         kbdbl_handle->mode_attr.show = sony_nc_kbd_backlight_mode_show;
1503         kbdbl_handle->mode_attr.store = sony_nc_kbd_backlight_mode_store;
1504
1505         sysfs_attr_init(&kbdbl_handle->timeout_attr.attr);
1506         kbdbl_handle->timeout_attr.attr.name = "kbd_backlight_timeout";
1507         kbdbl_handle->timeout_attr.attr.mode = S_IRUGO | S_IWUSR;
1508         kbdbl_handle->timeout_attr.show = sony_nc_kbd_backlight_timeout_show;
1509         kbdbl_handle->timeout_attr.store = sony_nc_kbd_backlight_timeout_store;
1510
1511         if (device_create_file(&pd->dev, &kbdbl_handle->mode_attr))
1512                 goto outkzalloc;
1513
1514         if (device_create_file(&pd->dev, &kbdbl_handle->timeout_attr))
1515                 goto outmode;
1516
1517         __sony_nc_kbd_backlight_mode_set(kbd_backlight);
1518         __sony_nc_kbd_backlight_timeout_set(kbd_backlight_timeout);
1519
1520         return 0;
1521
1522 outmode:
1523         device_remove_file(&pd->dev, &kbdbl_handle->mode_attr);
1524 outkzalloc:
1525         kfree(kbdbl_handle);
1526         kbdbl_handle = NULL;
1527         return -1;
1528 }
1529
1530 static int sony_nc_kbd_backlight_cleanup(struct platform_device *pd)
1531 {
1532         if (kbdbl_handle) {
1533                 int result;
1534
1535                 device_remove_file(&pd->dev, &kbdbl_handle->mode_attr);
1536                 device_remove_file(&pd->dev, &kbdbl_handle->timeout_attr);
1537
1538                 /* restore the default hw behaviour */
1539                 sony_call_snc_handle(KBDBL_HANDLER, 0x1000 | SET_MODE, &result);
1540                 sony_call_snc_handle(KBDBL_HANDLER, SET_TIMEOUT, &result);
1541
1542                 kfree(kbdbl_handle);
1543         }
1544         return 0;
1545 }
1546
1547 static void sony_nc_kbd_backlight_resume(void)
1548 {
1549         int ignore = 0;
1550
1551         if (!kbdbl_handle)
1552                 return;
1553
1554         if (kbdbl_handle->mode == 0)
1555                 sony_call_snc_handle(KBDBL_HANDLER, SET_MODE, &ignore);
1556
1557         if (kbdbl_handle->timeout != 0)
1558                 sony_call_snc_handle(KBDBL_HANDLER,
1559                                 (kbdbl_handle->timeout << 0x10) | SET_TIMEOUT,
1560                                 &ignore);
1561 }
1562
1563 static void sony_nc_backlight_ng_read_limits(int handle,
1564                 struct sony_backlight_props *props)
1565 {
1566         int offset;
1567         acpi_status status;
1568         u8 brlvl, i;
1569         u8 min = 0xff, max = 0x00;
1570         struct acpi_object_list params;
1571         union acpi_object in_obj;
1572         union acpi_object *lvl_enum;
1573         struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
1574
1575         props->handle = handle;
1576         props->offset = 0;
1577         props->maxlvl = 0xff;
1578
1579         offset = sony_find_snc_handle(handle);
1580         if (offset < 0)
1581                 return;
1582
1583         /* try to read the boundaries from ACPI tables, if we fail the above
1584          * defaults should be reasonable
1585          */
1586         params.count = 1;
1587         params.pointer = &in_obj;
1588         in_obj.type = ACPI_TYPE_INTEGER;
1589         in_obj.integer.value = offset;
1590         status = acpi_evaluate_object(sony_nc_acpi_handle, "SN06", &params,
1591                         &buffer);
1592         if (ACPI_FAILURE(status))
1593                 return;
1594
1595         lvl_enum = (union acpi_object *) buffer.pointer;
1596         if (!lvl_enum) {
1597                 pr_err("No SN06 return object.");
1598                 return;
1599         }
1600         if (lvl_enum->type != ACPI_TYPE_BUFFER) {
1601                 pr_err("Invalid SN06 return object 0x%.2x\n",
1602                        lvl_enum->type);
1603                 goto out_invalid;
1604         }
1605
1606         /* the buffer lists brightness levels available, brightness levels are
1607          * from 0 to 8 in the array, other values are used by ALS control.
1608          */
1609         for (i = 0; i < 9 && i < lvl_enum->buffer.length; i++) {
1610
1611                 brlvl = *(lvl_enum->buffer.pointer + i);
1612                 dprintk("Brightness level: %d\n", brlvl);
1613
1614                 if (!brlvl)
1615                         break;
1616
1617                 if (brlvl > max)
1618                         max = brlvl;
1619                 if (brlvl < min)
1620                         min = brlvl;
1621         }
1622         props->offset = min;
1623         props->maxlvl = max;
1624         dprintk("Brightness levels: min=%d max=%d\n", props->offset,
1625                         props->maxlvl);
1626
1627 out_invalid:
1628         kfree(buffer.pointer);
1629         return;
1630 }
1631
1632 static void sony_nc_backlight_setup(void)
1633 {
1634         acpi_handle unused;
1635         int max_brightness = 0;
1636         const struct backlight_ops *ops = NULL;
1637         struct backlight_properties props;
1638
1639         if (sony_find_snc_handle(0x12f) != -1) {
1640                 ops = &sony_backlight_ng_ops;
1641                 sony_nc_backlight_ng_read_limits(0x12f, &sony_bl_props);
1642                 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
1643
1644         } else if (sony_find_snc_handle(0x137) != -1) {
1645                 ops = &sony_backlight_ng_ops;
1646                 sony_nc_backlight_ng_read_limits(0x137, &sony_bl_props);
1647                 max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
1648
1649         } else if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT",
1650                                                 &unused))) {
1651                 ops = &sony_backlight_ops;
1652                 max_brightness = SONY_MAX_BRIGHTNESS - 1;
1653
1654         } else
1655                 return;
1656
1657         memset(&props, 0, sizeof(struct backlight_properties));
1658         props.type = BACKLIGHT_PLATFORM;
1659         props.max_brightness = max_brightness;
1660         sony_bl_props.dev = backlight_device_register("sony", NULL,
1661                                                       &sony_bl_props,
1662                                                       ops, &props);
1663
1664         if (IS_ERR(sony_bl_props.dev)) {
1665                 pr_warn(DRV_PFX "unable to register backlight device\n");
1666                 sony_bl_props.dev = NULL;
1667         } else
1668                 sony_bl_props.dev->props.brightness =
1669                         ops->get_brightness(sony_bl_props.dev);
1670 }
1671
1672 static void sony_nc_backlight_cleanup(void)
1673 {
1674         if (sony_bl_props.dev)
1675                 backlight_device_unregister(sony_bl_props.dev);
1676 }
1677
1678 static int sony_nc_add(struct acpi_device *device)
1679 {
1680         acpi_status status;
1681         int result = 0;
1682         acpi_handle handle;
1683         struct sony_nc_value *item;
1684
1685         pr_info(DRV_PFX "%s v%s.\n", SONY_NC_DRIVER_NAME,
1686                         SONY_LAPTOP_DRIVER_VERSION);
1687
1688         sony_nc_acpi_device = device;
1689         strcpy(acpi_device_class(device), "sony/hotkey");
1690
1691         sony_nc_acpi_handle = device->handle;
1692
1693         /* read device status */
1694         result = acpi_bus_get_status(device);
1695         /* bail IFF the above call was successful and the device is not present */
1696         if (!result && !device->status.present) {
1697                 dprintk("Device not present\n");
1698                 result = -ENODEV;
1699                 goto outwalk;
1700         }
1701
1702         result = sony_pf_add();
1703         if (result)
1704                 goto outpresent;
1705
1706         if (debug) {
1707                 status = acpi_walk_namespace(ACPI_TYPE_METHOD,
1708                                 sony_nc_acpi_handle, 1, sony_walk_callback,
1709                                 NULL, NULL, NULL);
1710                 if (ACPI_FAILURE(status)) {
1711                         pr_warn(DRV_PFX "unable to walk acpi resources\n");
1712                         result = -ENODEV;
1713                         goto outpresent;
1714                 }
1715         }
1716
1717         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "ECON",
1718                                          &handle))) {
1719                 if (acpi_callsetfunc(sony_nc_acpi_handle, "ECON", 1, NULL))
1720                         dprintk("ECON Method failed\n");
1721         }
1722
1723         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "SN00",
1724                                          &handle))) {
1725                 dprintk("Doing SNC setup\n");
1726                 result = sony_nc_handles_setup(sony_pf_device);
1727                 if (result)
1728                         goto outpresent;
1729                 result = sony_nc_kbd_backlight_setup(sony_pf_device);
1730                 if (result)
1731                         goto outsnc;
1732                 sony_nc_function_setup(device);
1733                 sony_nc_rfkill_setup(device);
1734         }
1735
1736         /* setup input devices and helper fifo */
1737         result = sony_laptop_setup_input(device);
1738         if (result) {
1739                 pr_err(DRV_PFX "Unable to create input devices.\n");
1740                 goto outkbdbacklight;
1741         }
1742
1743         if (acpi_video_backlight_support()) {
1744                 pr_info(DRV_PFX "brightness ignored, must be "
1745                        "controlled by ACPI video driver\n");
1746         } else {
1747                 sony_nc_backlight_setup();
1748         }
1749
1750         /* create sony_pf sysfs attributes related to the SNC device */
1751         for (item = sony_nc_values; item->name; ++item) {
1752
1753                 if (!debug && item->debug)
1754                         continue;
1755
1756                 /* find the available acpiget as described in the DSDT */
1757                 for (; item->acpiget && *item->acpiget; ++item->acpiget) {
1758                         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
1759                                                          *item->acpiget,
1760                                                          &handle))) {
1761                                 dprintk("Found %s getter: %s\n",
1762                                                 item->name, *item->acpiget);
1763                                 item->devattr.attr.mode |= S_IRUGO;
1764                                 break;
1765                         }
1766                 }
1767
1768                 /* find the available acpiset as described in the DSDT */
1769                 for (; item->acpiset && *item->acpiset; ++item->acpiset) {
1770                         if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
1771                                                          *item->acpiset,
1772                                                          &handle))) {
1773                                 dprintk("Found %s setter: %s\n",
1774                                                 item->name, *item->acpiset);
1775                                 item->devattr.attr.mode |= S_IWUSR;
1776                                 break;
1777                         }
1778                 }
1779
1780                 if (item->devattr.attr.mode != 0) {
1781                         result =
1782                             device_create_file(&sony_pf_device->dev,
1783                                                &item->devattr);
1784                         if (result)
1785                                 goto out_sysfs;
1786                 }
1787         }
1788
1789         return 0;
1790
1791       out_sysfs:
1792         for (item = sony_nc_values; item->name; ++item) {
1793                 device_remove_file(&sony_pf_device->dev, &item->devattr);
1794         }
1795         sony_nc_backlight_cleanup();
1796
1797         sony_laptop_remove_input();
1798
1799       outkbdbacklight:
1800         sony_nc_kbd_backlight_cleanup(sony_pf_device);
1801
1802       outsnc:
1803         sony_nc_handles_cleanup(sony_pf_device);
1804
1805       outpresent:
1806         sony_pf_remove();
1807
1808       outwalk:
1809         sony_nc_rfkill_cleanup();
1810         return result;
1811 }
1812
1813 static int sony_nc_remove(struct acpi_device *device, int type)
1814 {
1815         struct sony_nc_value *item;
1816
1817         sony_nc_backlight_cleanup();
1818
1819         sony_nc_acpi_device = NULL;
1820
1821         for (item = sony_nc_values; item->name; ++item) {
1822                 device_remove_file(&sony_pf_device->dev, &item->devattr);
1823         }
1824
1825         sony_nc_kbd_backlight_cleanup(sony_pf_device);
1826         sony_nc_handles_cleanup(sony_pf_device);
1827         sony_pf_remove();
1828         sony_laptop_remove_input();
1829         sony_nc_rfkill_cleanup();
1830         dprintk(SONY_NC_DRIVER_NAME " removed.\n");
1831
1832         return 0;
1833 }
1834
1835 static const struct acpi_device_id sony_device_ids[] = {
1836         {SONY_NC_HID, 0},
1837         {SONY_PIC_HID, 0},
1838         {"", 0},
1839 };
1840 MODULE_DEVICE_TABLE(acpi, sony_device_ids);
1841
1842 static const struct acpi_device_id sony_nc_device_ids[] = {
1843         {SONY_NC_HID, 0},
1844         {"", 0},
1845 };
1846
1847 static struct acpi_driver sony_nc_driver = {
1848         .name = SONY_NC_DRIVER_NAME,
1849         .class = SONY_NC_CLASS,
1850         .ids = sony_nc_device_ids,
1851         .owner = THIS_MODULE,
1852         .ops = {
1853                 .add = sony_nc_add,
1854                 .remove = sony_nc_remove,
1855                 .resume = sony_nc_resume,
1856                 .notify = sony_nc_notify,
1857                 },
1858 };
1859
1860 /*********** SPIC (SNY6001) Device ***********/
1861
1862 #define SONYPI_DEVICE_TYPE1     0x00000001
1863 #define SONYPI_DEVICE_TYPE2     0x00000002
1864 #define SONYPI_DEVICE_TYPE3     0x00000004
1865
1866 #define SONYPI_TYPE1_OFFSET     0x04
1867 #define SONYPI_TYPE2_OFFSET     0x12
1868 #define SONYPI_TYPE3_OFFSET     0x12
1869
1870 struct sony_pic_ioport {
1871         struct acpi_resource_io io1;
1872         struct acpi_resource_io io2;
1873         struct list_head        list;
1874 };
1875
1876 struct sony_pic_irq {
1877         struct acpi_resource_irq        irq;
1878         struct list_head                list;
1879 };
1880
1881 struct sonypi_eventtypes {
1882         u8                      data;
1883         unsigned long           mask;
1884         struct sonypi_event     *events;
1885 };
1886
1887 struct sony_pic_dev {
1888         struct acpi_device              *acpi_dev;
1889         struct sony_pic_irq             *cur_irq;
1890         struct sony_pic_ioport          *cur_ioport;
1891         struct list_head                interrupts;
1892         struct list_head                ioports;
1893         struct mutex                    lock;
1894         struct sonypi_eventtypes        *event_types;
1895         int                             (*handle_irq)(const u8, const u8);
1896         int                             model;
1897         u16                             evport_offset;
1898         u8                              camera_power;
1899         u8                              bluetooth_power;
1900         u8                              wwan_power;
1901 };
1902
1903 static struct sony_pic_dev spic_dev = {
1904         .interrupts     = LIST_HEAD_INIT(spic_dev.interrupts),
1905         .ioports        = LIST_HEAD_INIT(spic_dev.ioports),
1906 };
1907
1908 static int spic_drv_registered;
1909
1910 /* Event masks */
1911 #define SONYPI_JOGGER_MASK                      0x00000001
1912 #define SONYPI_CAPTURE_MASK                     0x00000002
1913 #define SONYPI_FNKEY_MASK                       0x00000004
1914 #define SONYPI_BLUETOOTH_MASK                   0x00000008
1915 #define SONYPI_PKEY_MASK                        0x00000010
1916 #define SONYPI_BACK_MASK                        0x00000020
1917 #define SONYPI_HELP_MASK                        0x00000040
1918 #define SONYPI_LID_MASK                         0x00000080
1919 #define SONYPI_ZOOM_MASK                        0x00000100
1920 #define SONYPI_THUMBPHRASE_MASK                 0x00000200
1921 #define SONYPI_MEYE_MASK                        0x00000400
1922 #define SONYPI_MEMORYSTICK_MASK                 0x00000800
1923 #define SONYPI_BATTERY_MASK                     0x00001000
1924 #define SONYPI_WIRELESS_MASK                    0x00002000
1925
1926 struct sonypi_event {
1927         u8      data;
1928         u8      event;
1929 };
1930
1931 /* The set of possible button release events */
1932 static struct sonypi_event sonypi_releaseev[] = {
1933         { 0x00, SONYPI_EVENT_ANYBUTTON_RELEASED },
1934         { 0, 0 }
1935 };
1936
1937 /* The set of possible jogger events  */
1938 static struct sonypi_event sonypi_joggerev[] = {
1939         { 0x1f, SONYPI_EVENT_JOGDIAL_UP },
1940         { 0x01, SONYPI_EVENT_JOGDIAL_DOWN },
1941         { 0x5f, SONYPI_EVENT_JOGDIAL_UP_PRESSED },
1942         { 0x41, SONYPI_EVENT_JOGDIAL_DOWN_PRESSED },
1943         { 0x1e, SONYPI_EVENT_JOGDIAL_FAST_UP },
1944         { 0x02, SONYPI_EVENT_JOGDIAL_FAST_DOWN },
1945         { 0x5e, SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED },
1946         { 0x42, SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED },
1947         { 0x1d, SONYPI_EVENT_JOGDIAL_VFAST_UP },
1948         { 0x03, SONYPI_EVENT_JOGDIAL_VFAST_DOWN },
1949         { 0x5d, SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED },
1950         { 0x43, SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED },
1951         { 0x40, SONYPI_EVENT_JOGDIAL_PRESSED },
1952         { 0, 0 }
1953 };
1954
1955 /* The set of possible capture button events */
1956 static struct sonypi_event sonypi_captureev[] = {
1957         { 0x05, SONYPI_EVENT_CAPTURE_PARTIALPRESSED },
1958         { 0x07, SONYPI_EVENT_CAPTURE_PRESSED },
1959         { 0x40, SONYPI_EVENT_CAPTURE_PRESSED },
1960         { 0x01, SONYPI_EVENT_CAPTURE_PARTIALRELEASED },
1961         { 0, 0 }
1962 };
1963
1964 /* The set of possible fnkeys events */
1965 static struct sonypi_event sonypi_fnkeyev[] = {
1966         { 0x10, SONYPI_EVENT_FNKEY_ESC },
1967         { 0x11, SONYPI_EVENT_FNKEY_F1 },
1968         { 0x12, SONYPI_EVENT_FNKEY_F2 },
1969         { 0x13, SONYPI_EVENT_FNKEY_F3 },
1970         { 0x14, SONYPI_EVENT_FNKEY_F4 },
1971         { 0x15, SONYPI_EVENT_FNKEY_F5 },
1972         { 0x16, SONYPI_EVENT_FNKEY_F6 },
1973         { 0x17, SONYPI_EVENT_FNKEY_F7 },
1974         { 0x18, SONYPI_EVENT_FNKEY_F8 },
1975         { 0x19, SONYPI_EVENT_FNKEY_F9 },
1976         { 0x1a, SONYPI_EVENT_FNKEY_F10 },
1977         { 0x1b, SONYPI_EVENT_FNKEY_F11 },
1978         { 0x1c, SONYPI_EVENT_FNKEY_F12 },
1979         { 0x1f, SONYPI_EVENT_FNKEY_RELEASED },
1980         { 0x21, SONYPI_EVENT_FNKEY_1 },
1981         { 0x22, SONYPI_EVENT_FNKEY_2 },
1982         { 0x31, SONYPI_EVENT_FNKEY_D },
1983         { 0x32, SONYPI_EVENT_FNKEY_E },
1984         { 0x33, SONYPI_EVENT_FNKEY_F },
1985         { 0x34, SONYPI_EVENT_FNKEY_S },
1986         { 0x35, SONYPI_EVENT_FNKEY_B },
1987         { 0x36, SONYPI_EVENT_FNKEY_ONLY },
1988         { 0, 0 }
1989 };
1990
1991 /* The set of possible program key events */
1992 static struct sonypi_event sonypi_pkeyev[] = {
1993         { 0x01, SONYPI_EVENT_PKEY_P1 },
1994         { 0x02, SONYPI_EVENT_PKEY_P2 },
1995         { 0x04, SONYPI_EVENT_PKEY_P3 },
1996         { 0x20, SONYPI_EVENT_PKEY_P1 },
1997         { 0, 0 }
1998 };
1999
2000 /* The set of possible bluetooth events */
2001 static struct sonypi_event sonypi_blueev[] = {
2002         { 0x55, SONYPI_EVENT_BLUETOOTH_PRESSED },
2003         { 0x59, SONYPI_EVENT_BLUETOOTH_ON },
2004         { 0x5a, SONYPI_EVENT_BLUETOOTH_OFF },
2005         { 0, 0 }
2006 };
2007
2008 /* The set of possible wireless events */
2009 static struct sonypi_event sonypi_wlessev[] = {
2010         { 0x59, SONYPI_EVENT_IGNORE },
2011         { 0x5a, SONYPI_EVENT_IGNORE },
2012         { 0, 0 }
2013 };
2014
2015 /* The set of possible back button events */
2016 static struct sonypi_event sonypi_backev[] = {
2017         { 0x20, SONYPI_EVENT_BACK_PRESSED },
2018         { 0, 0 }
2019 };
2020
2021 /* The set of possible help button events */
2022 static struct sonypi_event sonypi_helpev[] = {
2023         { 0x3b, SONYPI_EVENT_HELP_PRESSED },
2024         { 0, 0 }
2025 };
2026
2027
2028 /* The set of possible lid events */
2029 static struct sonypi_event sonypi_lidev[] = {
2030         { 0x51, SONYPI_EVENT_LID_CLOSED },
2031         { 0x50, SONYPI_EVENT_LID_OPENED },
2032         { 0, 0 }
2033 };
2034
2035 /* The set of possible zoom events */
2036 static struct sonypi_event sonypi_zoomev[] = {
2037         { 0x39, SONYPI_EVENT_ZOOM_PRESSED },
2038         { 0x10, SONYPI_EVENT_ZOOM_IN_PRESSED },
2039         { 0x20, SONYPI_EVENT_ZOOM_OUT_PRESSED },
2040         { 0x04, SONYPI_EVENT_ZOOM_PRESSED },
2041         { 0, 0 }
2042 };
2043
2044 /* The set of possible thumbphrase events */
2045 static struct sonypi_event sonypi_thumbphraseev[] = {
2046         { 0x3a, SONYPI_EVENT_THUMBPHRASE_PRESSED },
2047         { 0, 0 }
2048 };
2049
2050 /* The set of possible motioneye camera events */
2051 static struct sonypi_event sonypi_meyeev[] = {
2052         { 0x00, SONYPI_EVENT_MEYE_FACE },
2053         { 0x01, SONYPI_EVENT_MEYE_OPPOSITE },
2054         { 0, 0 }
2055 };
2056
2057 /* The set of possible memorystick events */
2058 static struct sonypi_event sonypi_memorystickev[] = {
2059         { 0x53, SONYPI_EVENT_MEMORYSTICK_INSERT },
2060         { 0x54, SONYPI_EVENT_MEMORYSTICK_EJECT },
2061         { 0, 0 }
2062 };
2063
2064 /* The set of possible battery events */
2065 static struct sonypi_event sonypi_batteryev[] = {
2066         { 0x20, SONYPI_EVENT_BATTERY_INSERT },
2067         { 0x30, SONYPI_EVENT_BATTERY_REMOVE },
2068         { 0, 0 }
2069 };
2070
2071 /* The set of possible volume events */
2072 static struct sonypi_event sonypi_volumeev[] = {
2073         { 0x01, SONYPI_EVENT_VOLUME_INC_PRESSED },
2074         { 0x02, SONYPI_EVENT_VOLUME_DEC_PRESSED },
2075         { 0, 0 }
2076 };
2077
2078 /* The set of possible brightness events */
2079 static struct sonypi_event sonypi_brightnessev[] = {
2080         { 0x80, SONYPI_EVENT_BRIGHTNESS_PRESSED },
2081         { 0, 0 }
2082 };
2083
2084 static struct sonypi_eventtypes type1_events[] = {
2085         { 0, 0xffffffff, sonypi_releaseev },
2086         { 0x70, SONYPI_MEYE_MASK, sonypi_meyeev },
2087         { 0x30, SONYPI_LID_MASK, sonypi_lidev },
2088         { 0x60, SONYPI_CAPTURE_MASK, sonypi_captureev },
2089         { 0x10, SONYPI_JOGGER_MASK, sonypi_joggerev },
2090         { 0x20, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
2091         { 0x30, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
2092         { 0x40, SONYPI_PKEY_MASK, sonypi_pkeyev },
2093         { 0x30, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
2094         { 0x40, SONYPI_BATTERY_MASK, sonypi_batteryev },
2095         { 0 },
2096 };
2097 static struct sonypi_eventtypes type2_events[] = {
2098         { 0, 0xffffffff, sonypi_releaseev },
2099         { 0x38, SONYPI_LID_MASK, sonypi_lidev },
2100         { 0x11, SONYPI_JOGGER_MASK, sonypi_joggerev },
2101         { 0x61, SONYPI_CAPTURE_MASK, sonypi_captureev },
2102         { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
2103         { 0x31, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
2104         { 0x08, SONYPI_PKEY_MASK, sonypi_pkeyev },
2105         { 0x11, SONYPI_BACK_MASK, sonypi_backev },
2106         { 0x21, SONYPI_HELP_MASK, sonypi_helpev },
2107         { 0x21, SONYPI_ZOOM_MASK, sonypi_zoomev },
2108         { 0x20, SONYPI_THUMBPHRASE_MASK, sonypi_thumbphraseev },
2109         { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
2110         { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
2111         { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
2112         { 0 },
2113 };
2114 static struct sonypi_eventtypes type3_events[] = {
2115         { 0, 0xffffffff, sonypi_releaseev },
2116         { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
2117         { 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
2118         { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
2119         { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
2120         { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
2121         { 0x05, SONYPI_PKEY_MASK, sonypi_pkeyev },
2122         { 0x05, SONYPI_ZOOM_MASK, sonypi_zoomev },
2123         { 0x05, SONYPI_CAPTURE_MASK, sonypi_captureev },
2124         { 0x05, SONYPI_PKEY_MASK, sonypi_volumeev },
2125         { 0x05, SONYPI_PKEY_MASK, sonypi_brightnessev },
2126         { 0 },
2127 };
2128
2129 /* low level spic calls */
2130 #define ITERATIONS_LONG         10000
2131 #define ITERATIONS_SHORT        10
2132 #define wait_on_command(command, iterations) {                          \
2133         unsigned int n = iterations;                                    \
2134         while (--n && (command))                                        \
2135                 udelay(1);                                              \
2136         if (!n)                                                         \
2137                 dprintk("command failed at %s : %s (line %d)\n",        \
2138                                 __FILE__, __func__, __LINE__);  \
2139 }
2140
2141 static u8 sony_pic_call1(u8 dev)
2142 {
2143         u8 v1, v2;
2144
2145         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
2146                         ITERATIONS_LONG);
2147         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
2148         v1 = inb_p(spic_dev.cur_ioport->io1.minimum + 4);
2149         v2 = inb_p(spic_dev.cur_ioport->io1.minimum);
2150         dprintk("sony_pic_call1(0x%.2x): 0x%.4x\n", dev, (v2 << 8) | v1);
2151         return v2;
2152 }
2153
2154 static u8 sony_pic_call2(u8 dev, u8 fn)
2155 {
2156         u8 v1;
2157
2158         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
2159                         ITERATIONS_LONG);
2160         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
2161         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
2162                         ITERATIONS_LONG);
2163         outb(fn, spic_dev.cur_ioport->io1.minimum);
2164         v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
2165         dprintk("sony_pic_call2(0x%.2x - 0x%.2x): 0x%.4x\n", dev, fn, v1);
2166         return v1;
2167 }
2168
2169 static u8 sony_pic_call3(u8 dev, u8 fn, u8 v)
2170 {
2171         u8 v1;
2172
2173         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
2174         outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
2175         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
2176         outb(fn, spic_dev.cur_ioport->io1.minimum);
2177         wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
2178         outb(v, spic_dev.cur_ioport->io1.minimum);
2179         v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
2180         dprintk("sony_pic_call3(0x%.2x - 0x%.2x - 0x%.2x): 0x%.4x\n",
2181                         dev, fn, v, v1);
2182         return v1;
2183 }
2184
2185 /*
2186  * minidrivers for SPIC models
2187  */
2188 static int type3_handle_irq(const u8 data_mask, const u8 ev)
2189 {
2190         /*
2191          * 0x31 could mean we have to take some extra action and wait for
2192          * the next irq for some Type3 models, it will generate a new
2193          * irq and we can read new data from the device:
2194          *  - 0x5c and 0x5f requires 0xA0
2195          *  - 0x61 requires 0xB3
2196          */
2197         if (data_mask == 0x31) {
2198                 if (ev == 0x5c || ev == 0x5f)
2199                         sony_pic_call1(0xA0);
2200                 else if (ev == 0x61)
2201                         sony_pic_call1(0xB3);
2202                 return 0;
2203         }
2204         return 1;
2205 }
2206
2207 static void sony_pic_detect_device_type(struct sony_pic_dev *dev)
2208 {
2209         struct pci_dev *pcidev;
2210
2211         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
2212                         PCI_DEVICE_ID_INTEL_82371AB_3, NULL);
2213         if (pcidev) {
2214                 dev->model = SONYPI_DEVICE_TYPE1;
2215                 dev->evport_offset = SONYPI_TYPE1_OFFSET;
2216                 dev->event_types = type1_events;
2217                 goto out;
2218         }
2219
2220         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
2221                         PCI_DEVICE_ID_INTEL_ICH6_1, NULL);
2222         if (pcidev) {
2223                 dev->model = SONYPI_DEVICE_TYPE2;
2224                 dev->evport_offset = SONYPI_TYPE2_OFFSET;
2225                 dev->event_types = type2_events;
2226                 goto out;
2227         }
2228
2229         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
2230                         PCI_DEVICE_ID_INTEL_ICH7_1, NULL);
2231         if (pcidev) {
2232                 dev->model = SONYPI_DEVICE_TYPE3;
2233                 dev->handle_irq = type3_handle_irq;
2234                 dev->evport_offset = SONYPI_TYPE3_OFFSET;
2235                 dev->event_types = type3_events;
2236                 goto out;
2237         }
2238
2239         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
2240                         PCI_DEVICE_ID_INTEL_ICH8_4, NULL);
2241         if (pcidev) {
2242                 dev->model = SONYPI_DEVICE_TYPE3;
2243                 dev->handle_irq = type3_handle_irq;
2244                 dev->evport_offset = SONYPI_TYPE3_OFFSET;
2245                 dev->event_types = type3_events;
2246                 goto out;
2247         }
2248
2249         pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
2250                         PCI_DEVICE_ID_INTEL_ICH9_1, NULL);
2251         if (pcidev) {
2252                 dev->model = SONYPI_DEVICE_TYPE3;
2253                 dev->handle_irq = type3_handle_irq;
2254                 dev->evport_offset = SONYPI_TYPE3_OFFSET;
2255                 dev->event_types = type3_events;
2256                 goto out;
2257         }
2258
2259         /* default */
2260         dev->model = SONYPI_DEVICE_TYPE2;
2261         dev->evport_offset = SONYPI_TYPE2_OFFSET;
2262         dev->event_types = type2_events;
2263
2264 out:
2265         if (pcidev)
2266                 pci_dev_put(pcidev);
2267
2268         pr_info(DRV_PFX "detected Type%d model\n",
2269                         dev->model == SONYPI_DEVICE_TYPE1 ? 1 :
2270                         dev->model == SONYPI_DEVICE_TYPE2 ? 2 : 3);
2271 }
2272
2273 /* camera tests and poweron/poweroff */
2274 #define SONYPI_CAMERA_PICTURE           5
2275 #define SONYPI_CAMERA_CONTROL           0x10
2276
2277 #define SONYPI_CAMERA_BRIGHTNESS                0
2278 #define SONYPI_CAMERA_CONTRAST                  1
2279 #define SONYPI_CAMERA_HUE                       2
2280 #define SONYPI_CAMERA_COLOR                     3
2281 #define SONYPI_CAMERA_SHARPNESS                 4
2282
2283 #define SONYPI_CAMERA_EXPOSURE_MASK             0xC
2284 #define SONYPI_CAMERA_WHITE_BALANCE_MASK        0x3
2285 #define SONYPI_CAMERA_PICTURE_MODE_MASK         0x30
2286 #define SONYPI_CAMERA_MUTE_MASK                 0x40
2287
2288 /* the rest don't need a loop until not 0xff */
2289 #define SONYPI_CAMERA_AGC                       6
2290 #define SONYPI_CAMERA_AGC_MASK                  0x30
2291 #define SONYPI_CAMERA_SHUTTER_MASK              0x7
2292
2293 #define SONYPI_CAMERA_SHUTDOWN_REQUEST          7
2294 #define SONYPI_CAMERA_CONTROL                   0x10
2295
2296 #define SONYPI_CAMERA_STATUS                    7
2297 #define SONYPI_CAMERA_STATUS_READY              0x2
2298 #define SONYPI_CAMERA_STATUS_POSITION           0x4
2299
2300 #define SONYPI_DIRECTION_BACKWARDS              0x4
2301
2302 #define SONYPI_CAMERA_REVISION                  8
2303 #define SONYPI_CAMERA_ROMVERSION                9
2304
2305 static int __sony_pic_camera_ready(void)
2306 {
2307         u8 v;
2308
2309         v = sony_pic_call2(0x8f, SONYPI_CAMERA_STATUS);
2310         return (v != 0xff && (v & SONYPI_CAMERA_STATUS_READY));
2311 }
2312
2313 static int __sony_pic_camera_off(void)
2314 {
2315         if (!camera) {
2316                 pr_warn(DRV_PFX "camera control not enabled\n");
2317                 return -ENODEV;
2318         }
2319
2320         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE,
2321                                 SONYPI_CAMERA_MUTE_MASK),
2322                         ITERATIONS_SHORT);
2323
2324         if (spic_dev.camera_power) {
2325                 sony_pic_call2(0x91, 0);
2326                 spic_dev.camera_power = 0;
2327         }
2328         return 0;
2329 }
2330
2331 static int __sony_pic_camera_on(void)
2332 {
2333         int i, j, x;
2334
2335         if (!camera) {
2336                 pr_warn(DRV_PFX "camera control not enabled\n");
2337                 return -ENODEV;
2338         }
2339
2340         if (spic_dev.camera_power)
2341                 return 0;
2342
2343         for (j = 5; j > 0; j--) {
2344
2345                 for (x = 0; x < 100 && sony_pic_call2(0x91, 0x1); x++)
2346                         msleep(10);
2347                 sony_pic_call1(0x93);
2348
2349                 for (i = 400; i > 0; i--) {
2350                         if (__sony_pic_camera_ready())
2351                                 break;
2352                         msleep(10);
2353                 }
2354                 if (i)
2355                         break;
2356         }
2357
2358         if (j == 0) {
2359                 pr_warn(DRV_PFX "failed to power on camera\n");
2360                 return -ENODEV;
2361         }
2362
2363         wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTROL,
2364                                 0x5a),
2365                         ITERATIONS_SHORT);
2366
2367         spic_dev.camera_power = 1;
2368         return 0;
2369 }
2370
2371 /* External camera command (exported to the motion eye v4l driver) */
2372 int sony_pic_camera_command(int command, u8 value)
2373 {
2374         if (!camera)
2375                 return -EIO;
2376
2377         mutex_lock(&spic_dev.lock);
2378
2379         switch (command) {
2380         case SONY_PIC_COMMAND_SETCAMERA:
2381                 if (value)
2382                         __sony_pic_camera_on();
2383                 else
2384                         __sony_pic_camera_off();
2385                 break;
2386         case SONY_PIC_COMMAND_SETCAMERABRIGHTNESS:
2387                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_BRIGHTNESS, value),
2388                                 ITERATIONS_SHORT);
2389                 break;
2390         case SONY_PIC_COMMAND_SETCAMERACONTRAST:
2391                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTRAST, value),
2392                                 ITERATIONS_SHORT);
2393                 break;
2394         case SONY_PIC_COMMAND_SETCAMERAHUE:
2395                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_HUE, value),
2396                                 ITERATIONS_SHORT);
2397                 break;
2398         case SONY_PIC_COMMAND_SETCAMERACOLOR:
2399                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_COLOR, value),
2400                                 ITERATIONS_SHORT);
2401                 break;
2402         case SONY_PIC_COMMAND_SETCAMERASHARPNESS:
2403                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_SHARPNESS, value),
2404                                 ITERATIONS_SHORT);
2405                 break;
2406         case SONY_PIC_COMMAND_SETCAMERAPICTURE:
2407                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE, value),
2408                                 ITERATIONS_SHORT);
2409                 break;
2410         case SONY_PIC_COMMAND_SETCAMERAAGC:
2411                 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_AGC, value),
2412                                 ITERATIONS_SHORT);
2413                 break;
2414         default:
2415                 pr_err(DRV_PFX "sony_pic_camera_command invalid: %d\n",
2416                        command);
2417                 break;
2418         }
2419         mutex_unlock(&spic_dev.lock);
2420         return 0;
2421 }
2422 EXPORT_SYMBOL(sony_pic_camera_command);
2423
2424 /* gprs/edge modem (SZ460N and SZ210P), thanks to Joshua Wise */
2425 static void __sony_pic_set_wwanpower(u8 state)
2426 {
2427         state = !!state;
2428         if (spic_dev.wwan_power == state)
2429                 return;
2430         sony_pic_call2(0xB0, state);
2431         sony_pic_call1(0x82);
2432         spic_dev.wwan_power = state;
2433 }
2434
2435 static ssize_t sony_pic_wwanpower_store(struct device *dev,
2436                 struct device_attribute *attr,
2437                 const char *buffer, size_t count)
2438 {
2439         unsigned long value;
2440         if (count > 31)
2441                 return -EINVAL;
2442
2443         value = simple_strtoul(buffer, NULL, 10);
2444         mutex_lock(&spic_dev.lock);
2445         __sony_pic_set_wwanpower(value);
2446         mutex_unlock(&spic_dev.lock);
2447
2448         return count;
2449 }
2450
2451 static ssize_t sony_pic_wwanpower_show(struct device *dev,
2452                 struct device_attribute *attr, char *buffer)
2453 {
2454         ssize_t count;
2455         mutex_lock(&spic_dev.lock);
2456         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.wwan_power);
2457         mutex_unlock(&spic_dev.lock);
2458         return count;
2459 }
2460
2461 /* bluetooth subsystem power state */
2462 static void __sony_pic_set_bluetoothpower(u8 state)
2463 {
2464         state = !!state;
2465         if (spic_dev.bluetooth_power == state)
2466                 return;
2467         sony_pic_call2(0x96, state);
2468         sony_pic_call1(0x82);
2469         spic_dev.bluetooth_power = state;
2470 }
2471
2472 static ssize_t sony_pic_bluetoothpower_store(struct device *dev,
2473                 struct device_attribute *attr,
2474                 const char *buffer, size_t count)
2475 {
2476         unsigned long value;
2477         if (count > 31)
2478                 return -EINVAL;
2479
2480         value = simple_strtoul(buffer, NULL, 10);
2481         mutex_lock(&spic_dev.lock);
2482         __sony_pic_set_bluetoothpower(value);
2483         mutex_unlock(&spic_dev.lock);
2484
2485         return count;
2486 }
2487
2488 static ssize_t sony_pic_bluetoothpower_show(struct device *dev,
2489                 struct device_attribute *attr, char *buffer)
2490 {
2491         ssize_t count = 0;
2492         mutex_lock(&spic_dev.lock);
2493         count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.bluetooth_power);
2494         mutex_unlock(&spic_dev.lock);
2495         return count;
2496 }
2497
2498 /* fan speed */
2499 /* FAN0 information (reverse engineered from ACPI tables) */
2500 #define SONY_PIC_FAN0_STATUS    0x93
2501 static int sony_pic_set_fanspeed(unsigned long value)
2502 {
2503         return ec_write(SONY_PIC_FAN0_STATUS, value);
2504 }
2505
2506 static int sony_pic_get_fanspeed(u8 *value)
2507 {
2508         return ec_read(SONY_PIC_FAN0_STATUS, value);
2509 }
2510
2511 static ssize_t sony_pic_fanspeed_store(struct device *dev,
2512                 struct device_attribute *attr,
2513                 const char *buffer, size_t count)
2514 {
2515         unsigned long value;
2516         if (count > 31)
2517                 return -EINVAL;
2518
2519         value = simple_strtoul(buffer, NULL, 10);
2520         if (sony_pic_set_fanspeed(value))
2521                 return -EIO;
2522
2523         return count;
2524 }
2525
2526 static ssize_t sony_pic_fanspeed_show(struct device *dev,
2527                 struct device_attribute *attr, char *buffer)
2528 {
2529         u8 value = 0;
2530         if (sony_pic_get_fanspeed(&value))
2531                 return -EIO;
2532
2533         return snprintf(buffer, PAGE_SIZE, "%d\n", value);
2534 }
2535
2536 #define SPIC_ATTR(_name, _mode)                                 \
2537 struct device_attribute spic_attr_##_name = __ATTR(_name,       \
2538                 _mode, sony_pic_## _name ##_show,               \
2539                 sony_pic_## _name ##_store)
2540
2541 static SPIC_ATTR(bluetoothpower, 0644);
2542 static SPIC_ATTR(wwanpower, 0644);
2543 static SPIC_ATTR(fanspeed, 0644);
2544
2545 static struct attribute *spic_attributes[] = {
2546         &spic_attr_bluetoothpower.attr,
2547         &spic_attr_wwanpower.attr,
2548         &spic_attr_fanspeed.attr,
2549         NULL
2550 };
2551
2552 static struct attribute_group spic_attribute_group = {
2553         .attrs = spic_attributes
2554 };
2555
2556 /******** SONYPI compatibility **********/
2557 #ifdef CONFIG_SONYPI_COMPAT
2558
2559 /* battery / brightness / temperature  addresses */
2560 #define SONYPI_BAT_FLAGS        0x81
2561 #define SONYPI_LCD_LIGHT        0x96
2562 #define SONYPI_BAT1_PCTRM       0xa0
2563 #define SONYPI_BAT1_LEFT        0xa2
2564 #define SONYPI_BAT1_MAXRT       0xa4
2565 #define SONYPI_BAT2_PCTRM       0xa8
2566 #define SONYPI_BAT2_LEFT        0xaa
2567 #define SONYPI_BAT2_MAXRT       0xac
2568 #define SONYPI_BAT1_MAXTK       0xb0
2569 #define SONYPI_BAT1_FULL        0xb2
2570 #define SONYPI_BAT2_MAXTK       0xb8
2571 #define SONYPI_BAT2_FULL        0xba
2572 #define SONYPI_TEMP_STATUS      0xC1
2573
2574 struct sonypi_compat_s {
2575         struct fasync_struct    *fifo_async;
2576         struct kfifo            fifo;
2577         spinlock_t              fifo_lock;
2578         wait_queue_head_t       fifo_proc_list;
2579         atomic_t                open_count;
2580 };
2581 static struct sonypi_compat_s sonypi_compat = {
2582         .open_count = ATOMIC_INIT(0),
2583 };
2584
2585 static int sonypi_misc_fasync(int fd, struct file *filp, int on)
2586 {
2587         return fasync_helper(fd, filp, on, &sonypi_compat.fifo_async);
2588 }
2589
2590 static int sonypi_misc_release(struct inode *inode, struct file *file)
2591 {
2592         atomic_dec(&sonypi_compat.open_count);
2593         return 0;
2594 }
2595
2596 static int sonypi_misc_open(struct inode *inode, struct file *file)
2597 {
2598         /* Flush input queue on first open */
2599         unsigned long flags;
2600
2601         spin_lock_irqsave(&sonypi_compat.fifo_lock, flags);
2602
2603         if (atomic_inc_return(&sonypi_compat.open_count) == 1)
2604                 kfifo_reset(&sonypi_compat.fifo);
2605
2606         spin_unlock_irqrestore(&sonypi_compat.fifo_lock, flags);
2607
2608         return 0;
2609 }
2610
2611 static ssize_t sonypi_misc_read(struct file *file, char __user *buf,
2612                                 size_t count, loff_t *pos)
2613 {
2614         ssize_t ret;
2615         unsigned char c;
2616
2617         if ((kfifo_len(&sonypi_compat.fifo) == 0) &&
2618             (file->f_flags & O_NONBLOCK))
2619                 return -EAGAIN;
2620
2621         ret = wait_event_interruptible(sonypi_compat.fifo_proc_list,
2622                                        kfifo_len(&sonypi_compat.fifo) != 0);
2623         if (ret)
2624                 return ret;
2625
2626         while (ret < count &&
2627                (kfifo_out_locked(&sonypi_compat.fifo, &c, sizeof(c),
2628                           &sonypi_compat.fifo_lock) == sizeof(c))) {
2629                 if (put_user(c, buf++))
2630                         return -EFAULT;
2631                 ret++;
2632         }
2633
2634         if (ret > 0) {
2635                 struct inode *inode = file->f_path.dentry->d_inode;
2636                 inode->i_atime = current_fs_time(inode->i_sb);
2637         }
2638
2639         return ret;
2640 }
2641
2642 static unsigned int sonypi_misc_poll(struct file *file, poll_table *wait)
2643 {
2644         poll_wait(file, &sonypi_compat.fifo_proc_list, wait);
2645         if (kfifo_len(&sonypi_compat.fifo))
2646                 return POLLIN | POLLRDNORM;
2647         return 0;
2648 }
2649
2650 static int ec_read16(u8 addr, u16 *value)
2651 {
2652         u8 val_lb, val_hb;
2653         if (ec_read(addr, &val_lb))
2654                 return -1;
2655         if (ec_read(addr + 1, &val_hb))
2656                 return -1;
2657         *value = val_lb | (val_hb << 8);
2658         return 0;
2659 }
2660
2661 static long sonypi_misc_ioctl(struct file *fp, unsigned int cmd,
2662                                                         unsigned long arg)
2663 {
2664         int ret = 0;
2665         void __user *argp = (void __user *)arg;
2666         u8 val8;
2667         u16 val16;
2668         int value;
2669
2670         mutex_lock(&spic_dev.lock);
2671         switch (cmd) {
2672         case SONYPI_IOCGBRT:
2673                 if (sony_bl_props.dev == NULL) {
2674                         ret = -EIO;
2675                         break;
2676                 }
2677                 if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value)) {
2678                         ret = -EIO;
2679                         break;
2680                 }
2681                 val8 = ((value & 0xff) - 1) << 5;
2682                 if (copy_to_user(argp, &val8, sizeof(val8)))
2683                                 ret = -EFAULT;
2684                 break;
2685         case SONYPI_IOCSBRT:
2686                 if (sony_bl_props.dev == NULL) {
2687                         ret = -EIO;
2688                         break;
2689                 }
2690                 if (copy_from_user(&val8, argp, sizeof(val8))) {
2691                         ret = -EFAULT;
2692                         break;
2693                 }
2694                 if (acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
2695                                 (val8 >> 5) + 1, NULL)) {
2696                         ret = -EIO;
2697                         break;
2698                 }
2699                 /* sync the backlight device status */
2700                 sony_bl_props.dev->props.brightness =
2701                     sony_backlight_get_brightness(sony_bl_props.dev);
2702                 break;
2703         case SONYPI_IOCGBAT1CAP:
2704                 if (ec_read16(SONYPI_BAT1_FULL, &val16)) {
2705                         ret = -EIO;
2706                         break;
2707                 }
2708                 if (copy_to_user(argp, &val16, sizeof(val16)))
2709                         ret = -EFAULT;
2710                 break;
2711         case SONYPI_IOCGBAT1REM:
2712                 if (ec_read16(SONYPI_BAT1_LEFT, &val16)) {
2713                         ret = -EIO;
2714                         break;
2715                 }
2716                 if (copy_to_user(argp, &val16, sizeof(val16)))
2717                         ret = -EFAULT;
2718                 break;
2719         case SONYPI_IOCGBAT2CAP:
2720                 if (ec_read16(SONYPI_BAT2_FULL, &val16)) {
2721                         ret = -EIO;
2722                         break;
2723                 }
2724                 if (copy_to_user(argp, &val16, sizeof(val16)))
2725                         ret = -EFAULT;
2726                 break;
2727         case SONYPI_IOCGBAT2REM:
2728                 if (ec_read16(SONYPI_BAT2_LEFT, &val16)) {
2729                         ret = -EIO;
2730                         break;
2731                 }
2732                 if (copy_to_user(argp, &val16, sizeof(val16)))
2733                         ret = -EFAULT;
2734                 break;
2735         case SONYPI_IOCGBATFLAGS:
2736                 if (ec_read(SONYPI_BAT_FLAGS, &val8)) {
2737                         ret = -EIO;
2738                         break;
2739                 }
2740                 val8 &= 0x07;
2741                 if (copy_to_user(argp, &val8, sizeof(val8)))
2742                         ret = -EFAULT;
2743                 break;
2744         case SONYPI_IOCGBLUE:
2745                 val8 = spic_dev.bluetooth_power;
2746                 if (copy_to_user(argp, &val8, sizeof(val8)))
2747                         ret = -EFAULT;
2748                 break;
2749         case SONYPI_IOCSBLUE:
2750                 if (copy_from_user(&val8, argp, sizeof(val8))) {
2751                         ret = -EFAULT;
2752                         break;
2753                 }
2754                 __sony_pic_set_bluetoothpower(val8);
2755                 break;
2756         /* FAN Controls */
2757         case SONYPI_IOCGFAN:
2758                 if (sony_pic_get_fanspeed(&val8)) {
2759                         ret = -EIO;
2760                         break;
2761                 }
2762                 if (copy_to_user(argp, &val8, sizeof(val8)))
2763                         ret = -EFAULT;
2764                 break;
2765         case SONYPI_IOCSFAN:
2766                 if (copy_from_user(&val8, argp, sizeof(val8))) {
2767                         ret = -EFAULT;
2768                         break;
2769                 }
2770                 if (sony_pic_set_fanspeed(val8))
2771                         ret = -EIO;
2772                 break;
2773         /* GET Temperature (useful under APM) */
2774         case SONYPI_IOCGTEMP:
2775                 if (ec_read(SONYPI_TEMP_STATUS, &val8)) {
2776                         ret = -EIO;
2777                         break;
2778                 }
2779                 if (copy_to_user(argp, &val8, sizeof(val8)))
2780                         ret = -EFAULT;
2781                 break;
2782         default:
2783                 ret = -EINVAL;
2784         }
2785         mutex_unlock(&spic_dev.lock);
2786         return ret;
2787 }
2788
2789 static const struct file_operations sonypi_misc_fops = {
2790         .owner          = THIS_MODULE,
2791         .read           = sonypi_misc_read,
2792         .poll           = sonypi_misc_poll,
2793         .open           = sonypi_misc_open,
2794         .release        = sonypi_misc_release,
2795         .fasync         = sonypi_misc_fasync,
2796         .unlocked_ioctl = sonypi_misc_ioctl,
2797         .llseek         = noop_llseek,
2798 };
2799
2800 static struct miscdevice sonypi_misc_device = {
2801         .minor          = MISC_DYNAMIC_MINOR,
2802         .name           = "sonypi",
2803         .fops           = &sonypi_misc_fops,
2804 };
2805
2806 static void sonypi_compat_report_event(u8 event)
2807 {
2808         kfifo_in_locked(&sonypi_compat.fifo, (unsigned char *)&event,
2809                         sizeof(event), &sonypi_compat.fifo_lock);
2810         kill_fasync(&sonypi_compat.fifo_async, SIGIO, POLL_IN);
2811         wake_up_interruptible(&sonypi_compat.fifo_proc_list);
2812 }
2813
2814 static int sonypi_compat_init(void)
2815 {
2816         int error;
2817
2818         spin_lock_init(&sonypi_compat.fifo_lock);
2819         error =
2820          kfifo_alloc(&sonypi_compat.fifo, SONY_LAPTOP_BUF_SIZE, GFP_KERNEL);
2821         if (error) {
2822                 pr_err(DRV_PFX "kfifo_alloc failed\n");
2823                 return error;
2824         }
2825
2826         init_waitqueue_head(&sonypi_compat.fifo_proc_list);
2827
2828         if (minor != -1)
2829                 sonypi_misc_device.minor = minor;
2830         error = misc_register(&sonypi_misc_device);
2831         if (error) {
2832                 pr_err(DRV_PFX "misc_register failed\n");
2833                 goto err_free_kfifo;
2834         }
2835         if (minor == -1)
2836                 pr_info(DRV_PFX "device allocated minor is %d\n",
2837                        sonypi_misc_device.minor);
2838
2839         return 0;
2840
2841 err_free_kfifo:
2842         kfifo_free(&sonypi_compat.fifo);
2843         return error;
2844 }
2845
2846 static void sonypi_compat_exit(void)
2847 {
2848         misc_deregister(&sonypi_misc_device);
2849         kfifo_free(&sonypi_compat.fifo);
2850 }
2851 #else
2852 static int sonypi_compat_init(void) { return 0; }
2853 static void sonypi_compat_exit(void) { }
2854 static void sonypi_compat_report_event(u8 event) { }
2855 #endif /* CONFIG_SONYPI_COMPAT */
2856
2857 /*
2858  * ACPI callbacks
2859  */
2860 static acpi_status
2861 sony_pic_read_possible_resource(struct acpi_resource *resource, void *context)
2862 {
2863         u32 i;
2864         struct sony_pic_dev *dev = (struct sony_pic_dev *)context;
2865
2866         switch (resource->type) {
2867         case ACPI_RESOURCE_TYPE_START_DEPENDENT:
2868                 {
2869                         /* start IO enumeration */
2870                         struct sony_pic_ioport *ioport = kzalloc(sizeof(*ioport), GFP_KERNEL);
2871                         if (!ioport)
2872                                 return AE_ERROR;
2873
2874                         list_add(&ioport->list, &dev->ioports);
2875                         return AE_OK;
2876                 }
2877
2878         case ACPI_RESOURCE_TYPE_END_DEPENDENT:
2879                 /* end IO enumeration */
2880                 return AE_OK;
2881
2882         case ACPI_RESOURCE_TYPE_IRQ:
2883                 {
2884                         struct acpi_resource_irq *p = &resource->data.irq;
2885                         struct sony_pic_irq *interrupt = NULL;
2886                         if (!p || !p->interrupt_count) {
2887                                 /*
2888                                  * IRQ descriptors may have no IRQ# bits set,
2889                                  * particularly those those w/ _STA disabled
2890                                  */
2891                                 dprintk("Blank IRQ resource\n");
2892                                 return AE_OK;
2893                         }
2894                         for (i = 0; i < p->interrupt_count; i++) {
2895                                 if (!p->interrupts[i]) {
2896                                         pr_warn(DRV_PFX "Invalid IRQ %d\n",
2897                                                         p->interrupts[i]);
2898                                         continue;
2899                                 }
2900                                 interrupt = kzalloc(sizeof(*interrupt),
2901                                                 GFP_KERNEL);
2902                                 if (!interrupt)
2903                                         return AE_ERROR;
2904
2905                                 list_add(&interrupt->list, &dev->interrupts);
2906                                 interrupt->irq.triggering = p->triggering;
2907                                 interrupt->irq.polarity = p->polarity;
2908                                 interrupt->irq.sharable = p->sharable;
2909                                 interrupt->irq.interrupt_count = 1;
2910                                 interrupt->irq.interrupts[0] = p->interrupts[i];
2911                         }
2912                         return AE_OK;
2913                 }
2914         case ACPI_RESOURCE_TYPE_IO:
2915                 {
2916                         struct acpi_resource_io *io = &resource->data.io;
2917                         struct sony_pic_ioport *ioport =
2918                                 list_first_entry(&dev->ioports, struct sony_pic_ioport, list);
2919                         if (!io) {
2920                                 dprintk("Blank IO resource\n");
2921                                 return AE_OK;
2922                         }
2923
2924                         if (!ioport->io1.minimum) {
2925                                 memcpy(&ioport->io1, io, sizeof(*io));
2926                                 dprintk("IO1 at 0x%.4x (0x%.2x)\n", ioport->io1.minimum,
2927                                                 ioport->io1.address_length);
2928                         }
2929                         else if (!ioport->io2.minimum) {
2930                                 memcpy(&ioport->io2, io, sizeof(*io));
2931                                 dprintk("IO2 at 0x%.4x (0x%.2x)\n", ioport->io2.minimum,
2932                                                 ioport->io2.address_length);
2933                         }
2934                         else {
2935                                 pr_err(DRV_PFX "Unknown SPIC Type, more than 2 IO Ports\n");
2936                                 return AE_ERROR;
2937                         }
2938                         return AE_OK;
2939                 }
2940         default:
2941                 dprintk("Resource %d isn't an IRQ nor an IO port\n",
2942                                 resource->type);
2943
2944         case ACPI_RESOURCE_TYPE_END_TAG:
2945                 return AE_OK;
2946         }
2947         return AE_CTRL_TERMINATE;
2948 }
2949
2950 static int sony_pic_possible_resources(struct acpi_device *device)
2951 {
2952         int result = 0;
2953         acpi_status status = AE_OK;
2954
2955         if (!device)
2956                 return -EINVAL;
2957
2958         /* get device status */
2959         /* see acpi_pci_link_get_current acpi_pci_link_get_possible */
2960         dprintk("Evaluating _STA\n");
2961         result = acpi_bus_get_status(device);
2962         if (result) {
2963                 pr_warn(DRV_PFX "Unable to read status\n");
2964                 goto end;
2965         }
2966
2967         if (!device->status.enabled)
2968                 dprintk("Device disabled\n");
2969         else
2970                 dprintk("Device enabled\n");
2971
2972         /*
2973          * Query and parse 'method'
2974          */
2975         dprintk("Evaluating %s\n", METHOD_NAME__PRS);
2976         status = acpi_walk_resources(device->handle, METHOD_NAME__PRS,
2977                         sony_pic_read_possible_resource, &spic_dev);
2978         if (ACPI_FAILURE(status)) {
2979                 pr_warn(DRV_PFX "Failure evaluating %s\n",
2980                                 METHOD_NAME__PRS);
2981                 result = -ENODEV;
2982         }
2983 end:
2984         return result;
2985 }
2986
2987 /*
2988  *  Disable the spic device by calling its _DIS method
2989  */
2990 static int sony_pic_disable(struct acpi_device *device)
2991 {
2992         acpi_status ret = acpi_evaluate_object(device->handle, "_DIS", NULL,
2993                                                NULL);
2994
2995         if (ACPI_FAILURE(ret) && ret != AE_NOT_FOUND)
2996                 return -ENXIO;
2997
2998         dprintk("Device disabled\n");
2999         return 0;
3000 }
3001
3002
3003 /*
3004  *  Based on drivers/acpi/pci_link.c:acpi_pci_link_set
3005  *
3006  *  Call _SRS to set current resources
3007  */
3008 static int sony_pic_enable(struct acpi_device *device,
3009                 struct sony_pic_ioport *ioport, struct sony_pic_irq *irq)
3010 {
3011         acpi_status status;
3012         int result = 0;
3013         /* Type 1 resource layout is:
3014          *    IO
3015          *    IO
3016          *    IRQNoFlags
3017          *    End
3018          *
3019          * Type 2 and 3 resource layout is:
3020          *    IO
3021          *    IRQNoFlags
3022          *    End
3023          */
3024         struct {
3025                 struct acpi_resource res1;
3026                 struct acpi_resource res2;
3027                 struct acpi_resource res3;
3028                 struct acpi_resource res4;
3029         } *resource;
3030         struct acpi_buffer buffer = { 0, NULL };
3031
3032         if (!ioport || !irq)
3033                 return -EINVAL;
3034
3035         /* init acpi_buffer */
3036         resource = kzalloc(sizeof(*resource) + 1, GFP_KERNEL);
3037         if (!resource)
3038                 return -ENOMEM;
3039
3040         buffer.length = sizeof(*resource) + 1;
3041         buffer.pointer = resource;
3042
3043         /* setup Type 1 resources */
3044         if (spic_dev.model == SONYPI_DEVICE_TYPE1) {
3045
3046                 /* setup io resources */
3047                 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
3048                 resource->res1.length = sizeof(struct acpi_resource);
3049                 memcpy(&resource->res1.data.io, &ioport->io1,
3050                                 sizeof(struct acpi_resource_io));
3051
3052                 resource->res2.type = ACPI_RESOURCE_TYPE_IO;
3053                 resource->res2.length = sizeof(struct acpi_resource);
3054                 memcpy(&resource->res2.data.io, &ioport->io2,
3055                                 sizeof(struct acpi_resource_io));
3056
3057                 /* setup irq resource */
3058                 resource->res3.type = ACPI_RESOURCE_TYPE_IRQ;
3059                 resource->res3.length = sizeof(struct acpi_resource);
3060                 memcpy(&resource->res3.data.irq, &irq->irq,
3061                                 sizeof(struct acpi_resource_irq));
3062                 /* we requested a shared irq */
3063                 resource->res3.data.irq.sharable = ACPI_SHARED;
3064
3065                 resource->res4.type = ACPI_RESOURCE_TYPE_END_TAG;
3066
3067         }
3068         /* setup Type 2/3 resources */
3069         else {
3070                 /* setup io resource */
3071                 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
3072                 resource->res1.length = sizeof(struct acpi_resource);
3073                 memcpy(&resource->res1.data.io, &ioport->io1,
3074                                 sizeof(struct acpi_resource_io));
3075
3076                 /* setup irq resource */
3077                 resource->res2.type = ACPI_RESOURCE_TYPE_IRQ;
3078                 resource->res2.length = sizeof(struct acpi_resource);
3079                 memcpy(&resource->res2.data.irq, &irq->irq,
3080                                 sizeof(struct acpi_resource_irq));
3081                 /* we requested a shared irq */
3082                 resource->res2.data.irq.sharable = ACPI_SHARED;
3083
3084                 resource->res3.type = ACPI_RESOURCE_TYPE_END_TAG;
3085         }
3086
3087         /* Attempt to set the resource */
3088         dprintk("Evaluating _SRS\n");
3089         status = acpi_set_current_resources(device->handle, &buffer);
3090
3091         /* check for total failure */
3092         if (ACPI_FAILURE(status)) {
3093                 pr_err(DRV_PFX "Error evaluating _SRS\n");
3094                 result = -ENODEV;
3095                 goto end;
3096         }
3097
3098         /* Necessary device initializations calls (from sonypi) */
3099         sony_pic_call1(0x82);
3100         sony_pic_call2(0x81, 0xff);
3101         sony_pic_call1(compat ? 0x92 : 0x82);
3102
3103 end:
3104         kfree(resource);
3105         return result;
3106 }
3107
3108 /*****************
3109  *
3110  * ISR: some event is available
3111  *
3112  *****************/
3113 static irqreturn_t sony_pic_irq(int irq, void *dev_id)
3114 {
3115         int i, j;
3116         u8 ev = 0;
3117         u8 data_mask = 0;
3118         u8 device_event = 0;
3119
3120         struct sony_pic_dev *dev = (struct sony_pic_dev *) dev_id;
3121
3122         ev = inb_p(dev->cur_ioport->io1.minimum);
3123         if (dev->cur_ioport->io2.minimum)
3124                 data_mask = inb_p(dev->cur_ioport->io2.minimum);
3125         else
3126                 data_mask = inb_p(dev->cur_ioport->io1.minimum +
3127                                 dev->evport_offset);
3128
3129         dprintk("event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
3130                         ev, data_mask, dev->cur_ioport->io1.minimum,
3131                         dev->evport_offset);
3132
3133         if (ev == 0x00 || ev == 0xff)
3134                 return IRQ_HANDLED;
3135
3136         for (i = 0; dev->event_types[i].mask; i++) {
3137
3138                 if ((data_mask & dev->event_types[i].data) !=
3139                     dev->event_types[i].data)
3140                         continue;
3141
3142                 if (!(mask & dev->event_types[i].mask))
3143                         continue;
3144
3145                 for (j = 0; dev->event_types[i].events[j].event; j++) {
3146                         if (ev == dev->event_types[i].events[j].data) {
3147                                 device_event =
3148                                         dev->event_types[i].events[j].event;
3149                                 /* some events may require ignoring */
3150                                 if (!device_event)
3151                                         return IRQ_HANDLED;
3152                                 goto found;
3153                         }
3154                 }
3155         }
3156         /* Still not able to decode the event try to pass
3157          * it over to the minidriver
3158          */
3159         if (dev->handle_irq && dev->handle_irq(data_mask, ev) == 0)
3160                 return IRQ_HANDLED;
3161
3162         dprintk("unknown event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
3163                         ev, data_mask, dev->cur_ioport->io1.minimum,
3164                         dev->evport_offset);
3165         return IRQ_HANDLED;
3166
3167 found:
3168         sony_laptop_report_input_event(device_event);
3169         acpi_bus_generate_proc_event(dev->acpi_dev, 1, device_event);
3170         sonypi_compat_report_event(device_event);
3171         return IRQ_HANDLED;
3172 }
3173
3174 /*****************
3175  *
3176  *  ACPI driver
3177  *
3178  *****************/
3179 static int sony_pic_remove(struct acpi_device *device, int type)
3180 {
3181         struct sony_pic_ioport *io, *tmp_io;
3182         struct sony_pic_irq *irq, *tmp_irq;
3183
3184         if (sony_pic_disable(device)) {
3185                 pr_err(DRV_PFX "Couldn't disable device.\n");
3186                 return -ENXIO;
3187         }
3188
3189         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
3190         release_region(spic_dev.cur_ioport->io1.minimum,
3191                         spic_dev.cur_ioport->io1.address_length);
3192         if (spic_dev.cur_ioport->io2.minimum)
3193                 release_region(spic_dev.cur_ioport->io2.minimum,
3194                                 spic_dev.cur_ioport->io2.address_length);
3195
3196         sonypi_compat_exit();
3197
3198         sony_laptop_remove_input();
3199
3200         /* pf attrs */
3201         sysfs_remove_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
3202         sony_pf_remove();
3203
3204         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
3205                 list_del(&io->list);
3206                 kfree(io);
3207         }
3208         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
3209                 list_del(&irq->list);
3210                 kfree(irq);
3211         }
3212         spic_dev.cur_ioport = NULL;
3213         spic_dev.cur_irq = NULL;
3214
3215         dprintk(SONY_PIC_DRIVER_NAME " removed.\n");
3216         return 0;
3217 }
3218
3219 static int sony_pic_add(struct acpi_device *device)
3220 {
3221         int result;
3222         struct sony_pic_ioport *io, *tmp_io;
3223         struct sony_pic_irq *irq, *tmp_irq;
3224
3225         pr_info(DRV_PFX "%s v%s.\n", SONY_PIC_DRIVER_NAME,
3226                         SONY_LAPTOP_DRIVER_VERSION);
3227
3228         spic_dev.acpi_dev = device;
3229         strcpy(acpi_device_class(device), "sony/hotkey");
3230         sony_pic_detect_device_type(&spic_dev);
3231         mutex_init(&spic_dev.lock);
3232
3233         /* read _PRS resources */
3234         result = sony_pic_possible_resources(device);
3235         if (result) {
3236                 pr_err(DRV_PFX "Unable to read possible resources.\n");
3237                 goto err_free_resources;
3238         }
3239
3240         /* setup input devices and helper fifo */
3241         result = sony_laptop_setup_input(device);
3242         if (result) {
3243                 pr_err(DRV_PFX "Unable to create input devices.\n");
3244                 goto err_free_resources;
3245         }
3246
3247         if (sonypi_compat_init())
3248                 goto err_remove_input;
3249
3250         /* request io port */
3251         list_for_each_entry_reverse(io, &spic_dev.ioports, list) {
3252                 if (request_region(io->io1.minimum, io->io1.address_length,
3253                                         "Sony Programmable I/O Device")) {
3254                         dprintk("I/O port1: 0x%.4x (0x%.4x) + 0x%.2x\n",
3255                                         io->io1.minimum, io->io1.maximum,
3256                                         io->io1.address_length);
3257                         /* Type 1 have 2 ioports */
3258                         if (io->io2.minimum) {
3259                                 if (request_region(io->io2.minimum,
3260                                                 io->io2.address_length,
3261                                                 "Sony Programmable I/O Device")) {
3262                                         dprintk("I/O port2: 0x%.4x (0x%.4x) + 0x%.2x\n",
3263                                                         io->io2.minimum, io->io2.maximum,
3264                                                         io->io2.address_length);
3265                                         spic_dev.cur_ioport = io;
3266                                         break;
3267                                 }
3268                                 else {
3269                                         dprintk("Unable to get I/O port2: "
3270                                                         "0x%.4x (0x%.4x) + 0x%.2x\n",
3271                                                         io->io2.minimum, io->io2.maximum,
3272                                                         io->io2.address_length);
3273                                         release_region(io->io1.minimum,
3274                                                         io->io1.address_length);
3275                                 }
3276                         }
3277                         else {
3278                                 spic_dev.cur_ioport = io;
3279                                 break;
3280                         }
3281                 }
3282         }
3283         if (!spic_dev.cur_ioport) {
3284                 pr_err(DRV_PFX "Failed to request_region.\n");
3285                 result = -ENODEV;
3286                 goto err_remove_compat;
3287         }
3288
3289         /* request IRQ */
3290         list_for_each_entry_reverse(irq, &spic_dev.interrupts, list) {
3291                 if (!request_irq(irq->irq.interrupts[0], sony_pic_irq,
3292                                         IRQF_DISABLED, "sony-laptop", &spic_dev)) {
3293                         dprintk("IRQ: %d - triggering: %d - "
3294                                         "polarity: %d - shr: %d\n",
3295                                         irq->irq.interrupts[0],
3296                                         irq->irq.triggering,
3297                                         irq->irq.polarity,
3298                                         irq->irq.sharable);
3299                         spic_dev.cur_irq = irq;
3300                         break;
3301                 }
3302         }
3303         if (!spic_dev.cur_irq) {
3304                 pr_err(DRV_PFX "Failed to request_irq.\n");
3305                 result = -ENODEV;
3306                 goto err_release_region;
3307         }
3308
3309         /* set resource status _SRS */
3310         result = sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
3311         if (result) {
3312                 pr_err(DRV_PFX "Couldn't enable device.\n");
3313                 goto err_free_irq;
3314         }
3315
3316         spic_dev.bluetooth_power = -1;
3317         /* create device attributes */
3318         result = sony_pf_add();
3319         if (result)
3320                 goto err_disable_device;
3321
3322         result = sysfs_create_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
3323         if (result)
3324                 goto err_remove_pf;
3325
3326         return 0;
3327
3328 err_remove_pf:
3329         sony_pf_remove();
3330
3331 err_disable_device:
3332         sony_pic_disable(device);
3333
3334 err_free_irq:
3335         free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
3336
3337 err_release_region:
3338         release_region(spic_dev.cur_ioport->io1.minimum,
3339                         spic_dev.cur_ioport->io1.address_length);
3340         if (spic_dev.cur_ioport->io2.minimum)
3341                 release_region(spic_dev.cur_ioport->io2.minimum,
3342                                 spic_dev.cur_ioport->io2.address_length);
3343
3344 err_remove_compat:
3345         sonypi_compat_exit();
3346
3347 err_remove_input:
3348         sony_laptop_remove_input();
3349
3350 err_free_resources:
3351         list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
3352                 list_del(&io->list);
3353                 kfree(io);
3354         }
3355         list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
3356                 list_del(&irq->list);
3357                 kfree(irq);
3358         }
3359         spic_dev.cur_ioport = NULL;
3360         spic_dev.cur_irq = NULL;
3361
3362         return result;
3363 }
3364
3365 static int sony_pic_suspend(struct acpi_device *device, pm_message_t state)
3366 {
3367         if (sony_pic_disable(device))
3368                 return -ENXIO;
3369         return 0;
3370 }
3371
3372 static int sony_pic_resume(struct acpi_device *device)
3373 {
3374         sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
3375         return 0;
3376 }
3377
3378 static const struct acpi_device_id sony_pic_device_ids[] = {
3379         {SONY_PIC_HID, 0},
3380         {"", 0},
3381 };
3382
3383 static struct acpi_driver sony_pic_driver = {
3384         .name = SONY_PIC_DRIVER_NAME,
3385         .class = SONY_PIC_CLASS,
3386         .ids = sony_pic_device_ids,
3387         .owner = THIS_MODULE,
3388         .ops = {
3389                 .add = sony_pic_add,
3390                 .remove = sony_pic_remove,
3391                 .suspend = sony_pic_suspend,
3392                 .resume = sony_pic_resume,
3393                 },
3394 };
3395
3396 static struct dmi_system_id __initdata sonypi_dmi_table[] = {
3397         {
3398                 .ident = "Sony Vaio",
3399                 .matches = {
3400                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
3401                         DMI_MATCH(DMI_PRODUCT_NAME, "PCG-"),
3402                 },
3403         },
3404         {
3405                 .ident = "Sony Vaio",
3406                 .matches = {
3407                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
3408                         DMI_MATCH(DMI_PRODUCT_NAME, "VGN-"),
3409                 },
3410         },
3411         { }
3412 };
3413
3414 static int __init sony_laptop_init(void)
3415 {
3416         int result;
3417
3418         if (!no_spic && dmi_check_system(sonypi_dmi_table)) {
3419                 result = acpi_bus_register_driver(&sony_pic_driver);
3420                 if (result) {
3421                         pr_err(DRV_PFX "Unable to register SPIC driver.");
3422                         goto out;
3423                 }
3424                 spic_drv_registered = 1;
3425         }
3426
3427         result = acpi_bus_register_driver(&sony_nc_driver);
3428         if (result) {
3429                 pr_err(DRV_PFX "Unable to register SNC driver.");
3430                 goto out_unregister_pic;
3431         }
3432
3433         return 0;
3434
3435 out_unregister_pic:
3436         if (spic_drv_registered)
3437                 acpi_bus_unregister_driver(&sony_pic_driver);
3438 out:
3439         return result;
3440 }
3441
3442 static void __exit sony_laptop_exit(void)
3443 {
3444         acpi_bus_unregister_driver(&sony_nc_driver);
3445         if (spic_drv_registered)
3446                 acpi_bus_unregister_driver(&sony_pic_driver);
3447 }
3448
3449 module_init(sony_laptop_init);
3450 module_exit(sony_laptop_exit);